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1.
Gene ; 932: 148900, 2025 Jan 10.
Artículo en Inglés | MEDLINE | ID: mdl-39209180

RESUMEN

Gastric cancer (GC) is one of the leading causes of cancer-related deaths worldwide because of its high morbidity and the absence of effective therapies. Even though paclitaxel is a powerful anticancer chemotherapy drug, recent studies have indicated its ineffectiveness against GC cells. Long non-coding RNA (lncRNA) PVT1 has a high expression in GC cells and increases the progression of tumors via inducing drug resistance. In the present study, the effects of the siRNA-mediated lncRNA PVT1 gene silencing along with paclitaxel treatment on the rate of apoptosis, growth, and migration of AGS GC cells were investigated. AGS cells were cultured and then transfected with siRNA PVT1 using electroporation. The MTT test was used to examine the effect of treatments on the viability of cultured cells. Furthermore, the flow cytometry method was used to evaluate the impact of treatments on the cell cycle process and apoptosis induction in GC cells. Finally, the mRNA expression of target genes was assessed using the qRT-PCR method. The results showed that lncRNA PVT1 gene suppression, along with paclitaxel treatment, reduces the viability of cancer cells and significantly increases the apoptosis rate of cancer cells and the number of cells arrested in the G2/M phase compared to the control group. Based on the results of qRT-PCR, combined treatment significantly decreased the expression of MMP3, MMP9, MDR1, MRP1, Bcl-2, k-Ras, and c-Myc genes and increased the expression of the Bax gene compared to the control group. The results of our study showed that lncRNA PVT1 gene targeting, together with paclitaxel treatment, induces apoptosis, inhibits growth, alleviates drug resistance, and reduces the migratory capability of GC cells. Therefore, there is a need for further investigations to evaluate the feasibility and effectiveness of this approach in vivo in animal models.


Asunto(s)
Apoptosis , Resistencia a Antineoplásicos , Silenciador del Gen , Paclitaxel , ARN Largo no Codificante , Neoplasias Gástricas , ARN Largo no Codificante/genética , Paclitaxel/farmacología , Humanos , Neoplasias Gástricas/genética , Neoplasias Gástricas/tratamiento farmacológico , Neoplasias Gástricas/patología , Línea Celular Tumoral , Apoptosis/efectos de los fármacos , Apoptosis/genética , Resistencia a Antineoplásicos/genética , Regulación Neoplásica de la Expresión Génica/efectos de los fármacos , Proliferación Celular/efectos de los fármacos , Movimiento Celular/efectos de los fármacos , Antineoplásicos Fitogénicos/farmacología , ARN Interferente Pequeño/genética
2.
Indian J Pharmacol ; 56(4): 253-259, 2024 Jul 01.
Artículo en Inglés | MEDLINE | ID: mdl-39250622

RESUMEN

BACKGROUND: Paclitaxel is a promising anticancer drug for patients with ovarian, breast, lung, gastrointestinal, genitourinary, prostate, and head-and-neck cancers. Paclitaxel follows nonlinear pharmacokinetics. The major metabolite of paclitaxel is 6-alpha-hydroxy paclitaxel, mediated by CYP2C8, while metabolism to two of its minor metabolites, 3'-p-hydroxypaclitaxel and 6a, 3'- p-dihydroxypaclitaxel, is catalyzed by CYP3A4. Therapeutic drug monitoring of paclitaxel could be a promising approach to improve the efficacy and safety of paclitaxel correct personalized doses and improve the overall benefit-risk ratio. A novel and highly sensitive chromatographic method for the detection of paclitaxel and its metabolite has been proposed that allows quantification in human plasma with 100% accuracy in terms of recovery without significant intraday or interday variations. MATERIALS AND METHODS: The present study was planned following bioanalytical method validation guidance according to the U.S. Food and Drug Administration requirements. The validation of the analytical procedure was performed as per ICH Q2(R1) guidelines. It was done to assure the reliability of the results obtained for various parameters such as linearity, accuracy, precision, limit of detection (LOD), limit of quantification, robustness, stability, and system suitability. RESULTS: The specificity of the method was established by ensuring no interference with peak obtained from paclitaxel and 6-alpha-hydroxy paclitaxel. LOD was found to be 0.05 and 0.033 while the limit of quantitation was 0.14 and 0.099 for paclitaxel and 6-alpha-hydroxy paclitaxel, respectively. Median (±interquartile range) accuracy for paclitaxel and 6-alpha-hydroxy paclitaxel was found to be 102.73 (±13.581) and 100.87 (±7.573), respectively. CONCLUSION: This novel method of simultaneous detection of paclitaxel and its major metabolite 6-alpha-hydroxy paclitaxel demonstrated significant resolution and was sensitive enough for its quantification in human plasma.


Asunto(s)
Antineoplásicos Fitogénicos , Límite de Detección , Paclitaxel , Paclitaxel/sangre , Paclitaxel/farmacocinética , Paclitaxel/análogos & derivados , Humanos , Cromatografía Líquida de Alta Presión/métodos , Reproducibilidad de los Resultados , Antineoplásicos Fitogénicos/sangre , Antineoplásicos Fitogénicos/farmacocinética , Monitoreo de Drogas/métodos
3.
Carbohydr Polym ; 346: 122596, 2024 Dec 15.
Artículo en Inglés | MEDLINE | ID: mdl-39245487

RESUMEN

Drug treatment of glioblastoma, the most aggressive and widespread form of brain cancer, is complicated due to the difficulty of penetration of chemotherapeutic drugs through the blood-brain barrier (BBB). Moreover, with surgical removal of tumors, in 90 % of cases they reappear near the original focus. To solve this problem, we propose to use hydrogel based on cellulose nanocrystals grafted with poly(N-isopropylacrylamide) (CNC-g-PNIPAM) as a promising material for filling postoperative cavities in the brain with the release of antitumor drugs. The CNC-g-PNIPAM is formed by "grafting to" method for precise control of molecular weight and grafting density. This colloidal system is liquid under injection conditions (at r. t.) and turns into a gel at human body temperature (when filling the postoperative area). It was shown for the first time that due to the rod-shaped of CNC, the gel has a fibrillar structure and, thus, mechanical properties similar to those of brain tissue, including nonlinear mechanics (strain-stiffening and compression softening). The biocompatibility of the hydrogel with primary brain cells is demonstrated. In addition, the release of the antitumor drug paclitaxel from the hydrogel and its antitumor activity is shown. The resulting nanocolloid system provides an innovative alternative approach to filling postoperative cavities and can be used for postoperative treatment due to the programmable release of drugs, as well as for in vitro modeling of tumor interaction with the BBB affecting drug transport in the brain.


Asunto(s)
Resinas Acrílicas , Materiales Biocompatibles , Celulosa , Hidrogeles , Nanopartículas , Celulosa/química , Nanopartículas/química , Resinas Acrílicas/química , Humanos , Animales , Materiales Biocompatibles/química , Hidrogeles/química , Encéfalo/efectos de los fármacos , Encéfalo/metabolismo , Paclitaxel/química , Paclitaxel/farmacología , Paclitaxel/administración & dosificación , Temperatura , Neoplasias Encefálicas/tratamiento farmacológico , Glioblastoma/tratamiento farmacológico , Glioblastoma/patología , Liberación de Fármacos , Barrera Hematoencefálica/metabolismo
4.
Carbohydr Polym ; 346: 122645, 2024 Dec 15.
Artículo en Inglés | MEDLINE | ID: mdl-39245506

RESUMEN

Melanoma either intrinsically possesses resistance or rapidly acquires resistance to anti-tumor therapy, which often leads to local recurrence or distant metastasis after resection. In this study, we found histone 3 lysine 27 (H3K27) demethylated by an inhibitor of histone methyltransferase EZH2 could epigenetically reverse the resistance to chemo-drug paclitaxel (PTX), or enhance the efficacy of immune checkpoint inhibitor anti-TIGIT via downregulating TIGIT ligand CD155. Next, to address the complexity in the combination of multiple bioactive molecules with distinct therapeutic properties, we developed a polysaccharides-based organohydrogel (OHG) configured with a heterogenous network. Therein, hydroxypropyl chitosan (HPC)-stabilized emulsions for hydrophobic drug entrapment were crosslinked with oxidized dextran (Odex) to form a hydrophilic gel matrix to facilitate antibody accommodation, which demonstrated a tunable sustained release profile by optimizing emulsion/gel volume ratios. As results, local injection of OHG loaded with EZH2 inhibitor UNC1999, PTX and anti-TIGIT did not only synergistically enhance the cytotoxicity of PTX, but also reprogrammed the immune resistance via bi-directionally blocking TIGIT/CD155 axis, leading to the recruitment of cytotoxic effector cells into tumor and conferring a systemic immune memory to prevent lung metastasis. Hence, this polysaccharides-based OHG represents a potential in-situ epigenetic-, chemo- and immunotherapy platform to treat unresectable metastatic melanoma.


Asunto(s)
Quitosano , Dextranos , Proteína Potenciadora del Homólogo Zeste 2 , Epigénesis Genética , Melanoma , Proteína Potenciadora del Homólogo Zeste 2/antagonistas & inhibidores , Proteína Potenciadora del Homólogo Zeste 2/metabolismo , Proteína Potenciadora del Homólogo Zeste 2/genética , Proteína Potenciadora del Homólogo Zeste 2/inmunología , Quitosano/química , Quitosano/análogos & derivados , Dextranos/química , Animales , Melanoma/tratamiento farmacológico , Melanoma/patología , Melanoma/inmunología , Ratones , Humanos , Epigénesis Genética/efectos de los fármacos , Paclitaxel/farmacología , Paclitaxel/química , Paclitaxel/uso terapéutico , Resistencia a Antineoplásicos/efectos de los fármacos , Hidrogeles/química , Línea Celular Tumoral , Receptores Inmunológicos/antagonistas & inhibidores , Receptores Inmunológicos/metabolismo , Antineoplásicos/farmacología , Antineoplásicos/química
5.
Carbohydr Polym ; 345: 122569, 2024 Dec 01.
Artículo en Inglés | MEDLINE | ID: mdl-39227105

RESUMEN

Breast cancer is a malignant tumor that poses a significant threat to women's health and single therapy fails to play a good oncological therapeutic effect. Synergistic treatment with multiple strategies may make up for the deficiencies and has gained widespread attention. In this study, sulfhydryl-modified hyaluronic acid (HA-SH) was covalently crosslinked with polydopamine (PDA) via a Michael addition reaction to develop an injectable hydrogel, in which PDA can be used not only as a matrix but also as a photothermal agent. After HSA and paclitaxel were spontaneously organized into nanoparticles via hydrophobic interaction, hyaluronic acid with low molecular weight was covalently linked to HSA, thus conferring effectively delivery. This photothermal injectable hydrogel incorporates PTX@HSA-HA nanoparticles, thereby initiating a thermochemotherapeutic response to target malignancy. Our results demonstrated that this injectable hydrogel possesses consistent drug delivery capability in a murine breast cancer model, collaborating with photothermal therapy to effectively suppress tumor growth, represented by low expression of Ki-67 and increasing apoptosis. Photothermal therapy (PTT) can effectively stimulate immune response by increasing IL-6 and TNF-α. Notably, the treatment did not elicit any indications of toxicity. This injectable hydrogel holds significant promise as a multifaceted therapeutic agent that integrates photothermal and chemotherapeutic modalities.


Asunto(s)
Neoplasias de la Mama , Ácido Hialurónico , Hidrogeles , Paclitaxel , Terapia Fototérmica , Animales , Ácido Hialurónico/química , Hidrogeles/química , Hidrogeles/farmacología , Femenino , Neoplasias de la Mama/terapia , Neoplasias de la Mama/tratamiento farmacológico , Neoplasias de la Mama/patología , Ratones , Terapia Fototérmica/métodos , Paclitaxel/farmacología , Paclitaxel/química , Paclitaxel/administración & dosificación , Humanos , Indoles/química , Indoles/farmacología , Ratones Endogámicos BALB C , Polímeros/química , Apoptosis/efectos de los fármacos , Línea Celular Tumoral , Nanopartículas/química , Portadores de Fármacos/química , Antineoplásicos Fitogénicos/farmacología , Antineoplásicos Fitogénicos/química , Antineoplásicos Fitogénicos/administración & dosificación , Sistemas de Liberación de Medicamentos/métodos , Fototerapia/métodos
6.
Signal Transduct Target Ther ; 9(1): 241, 2024 Sep 16.
Artículo en Inglés | MEDLINE | ID: mdl-39278918

RESUMEN

Treatment options for patients with relapsed extensive-stage small cell lung cancer (ES-SCLC) remain scarce. This study aims to evaluate the efficacy and safety of combining anlotinib and sintilimab plus chemotherapy as a second line or later therapy for ES-SCLC patients. This is a phase II clinical trial (ChiCTR2100049390) conducting at Shandong Cancer Hospital. Patients with ES-SCLC and received at least one prior systemic treatment were enrolled. The trial design involved a combination therapy (sintilimab, anlotinib, and nab-paclitaxel) administered over six 21-day cycles, followed by maintenance sintilimab therapy. The primary endpoint was objective response rate (ORR). Circulating tumor DNA sequencing was employed for exploratory analysis. From July 2021 to April 2023, 25 eligible patients were enrolled. The confirmed ORR was 60% (95% CI: 38.7-78.9%) and the DCR was 76% (95% CI: 54.9-90.6%). The mPFS was 6.0 months (95% CI: 5.4-9.7), and the 6-month PFS rate was 49.2%. The mOS was 13.4 months (95% CI: 11.8-NR), with a 12-month survival rate of 62.2%. Treatment-related adverse events (TRAEs) of any grade occurred in 80% of patients, with the most common being fatigue (40%) and nausea (32%). TRAEs of Grade 3 or higher were reported in 12% of patients. ctDNA analysis indicated that low on-treatment blood tumor mutation burden was associated with longer PFS and OS and a potential role of KMT2D mutation in treatment resistance. This combination therapy shows promising efficacy and a manageable safety profile as a second-line or later treatment for ES-SCLC, with genomic insights providing potential biomarkers for treatment response.


Asunto(s)
Anticuerpos Monoclonales Humanizados , Protocolos de Quimioterapia Combinada Antineoplásica , Indoles , Neoplasias Pulmonares , Quinolinas , Carcinoma Pulmonar de Células Pequeñas , Humanos , Carcinoma Pulmonar de Células Pequeñas/tratamiento farmacológico , Carcinoma Pulmonar de Células Pequeñas/genética , Carcinoma Pulmonar de Células Pequeñas/patología , Femenino , Masculino , Persona de Mediana Edad , Neoplasias Pulmonares/tratamiento farmacológico , Neoplasias Pulmonares/genética , Neoplasias Pulmonares/patología , Anciano , Indoles/administración & dosificación , Indoles/uso terapéutico , Indoles/efectos adversos , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Protocolos de Quimioterapia Combinada Antineoplásica/efectos adversos , Quinolinas/administración & dosificación , Quinolinas/uso terapéutico , Quinolinas/efectos adversos , Anticuerpos Monoclonales Humanizados/administración & dosificación , Anticuerpos Monoclonales Humanizados/efectos adversos , Anticuerpos Monoclonales Humanizados/uso terapéutico , Adulto , Paclitaxel/administración & dosificación , Paclitaxel/efectos adversos , Paclitaxel/uso terapéutico , Estadificación de Neoplasias , Albúminas
7.
Wiad Lek ; 77(8): 1533-1546, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-39231324

RESUMEN

OBJECTIVE: Aim: To analyze the results of treatment of patients with oropharyngeal carcinoma. PATIENTS AND METHODS: Materials and Methods: 276 patients with oropharyngeal carcinoma were treated in 2008-2021. Neoadjuvant chemotherapy consisted of three to six cycles: paclitaxel 175 mg/m2 and carboplatin 350 mg/m2 (or cisplatin 100 mg/m2) on the first day. The interval between cycles was 21 days. After the cycles, all patients were prescribed a course of radiation therapy in a total focal dose (TFD) of 65 Gy. The outcome of treatment was assessed by the degree of tumor regression according to RECIST criteria one month after the end of combination treatment. Statistical processing was performed using STATISTICA 6.1 software (StatSoftInc). RESULTS: Results: The three- and five-year survival rates of the examined patients with oropharyngeal carcinoma after treatment were 40.8% respectively (95% CI 33.7 - 47.9) and 27.0%, (95% CI 20.6 - 33, 4) with a median survival of 36 months with 95% CI (35.5 - 40.2). Processing was performed using STATISTICA 6.1 software (StatSoftInc). CONCLUSION: Сonclusions: Analysis of treatment of patients with oropharyngeal carcinoma with predominance of squamous cell carcinoma (90.6%), localized primarily in the palatine tonsil (73.2%), with the most common stages T3N1M0 (30.1%) and T3N1M0 %), with regional metastases to the lymph nodes of the neck (89.9%), showed that the effectiveness of treatment of patients is quite high, because in most of the examined in the short term after combined treatment there was complete or partial regression of the tumor (91.7%), no progression of the oncological process was detected in any of them.


Asunto(s)
Neoplasias Orofaríngeas , Paclitaxel , Humanos , Neoplasias Orofaríngeas/terapia , Neoplasias Orofaríngeas/tratamiento farmacológico , Neoplasias Orofaríngeas/patología , Masculino , Femenino , Persona de Mediana Edad , Paclitaxel/administración & dosificación , Paclitaxel/uso terapéutico , Anciano , Resultado del Tratamiento , Cisplatino/administración & dosificación , Cisplatino/uso terapéutico , Carboplatino/administración & dosificación , Adulto , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Tasa de Supervivencia , Terapia Neoadyuvante
8.
Esophagus ; 21(4): 539-545, 2024 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-39222157

RESUMEN

BACKGROUND: Programmed cell death-1 (PD-1) blockade improves survival in patients with advanced esophageal squamous cell carcinoma (ESCC). However, the efficacy of taxanes after exposure to PD-1 blockade remains unclear in patients with advanced ESCC. METHODS: We retrospectively analyzed the clinical outcomes of advanced ESCC patients treated with taxanes (paclitaxel or docetaxel) with/without prior exposure to PD-1 blockade (Exposed /Naïve group) at National Cancer Center Hospital from June 2016 to December 2020. RESULTS: Ninety-nine patients (Exposed group, n = 32; Naïve group, n = 67) were included. The objective response rate (ORR) of the Exposed group was significantly higher than that of the Naïve group (37.5% vs. 13.4%, p = 0.009). The median progression-free survival was similar between the Exposed and Naïve groups (3.8 vs. 2.8 months, HR 1.12, 95% CI 0.65-1.86, p = 0.66). PD-1 blockade exposure independently predicated higher ORR to taxanes in multivariate analysis. Grade ≥ 3 adverse events were comparable between the Exposed and Naïve groups (45.8% vs. 40.3%, p = 0.64). CONCLUSIONS: Taxanes following PD-1 blockade in advanced ESCC showed a higher ORR but similar PFS compared to taxanes without prior PD-1 exposure.


Asunto(s)
Docetaxel , Neoplasias Esofágicas , Carcinoma de Células Escamosas de Esófago , Paclitaxel , Humanos , Masculino , Femenino , Carcinoma de Células Escamosas de Esófago/tratamiento farmacológico , Estudios Retrospectivos , Neoplasias Esofágicas/tratamiento farmacológico , Neoplasias Esofágicas/patología , Persona de Mediana Edad , Anciano , Docetaxel/uso terapéutico , Docetaxel/efectos adversos , Docetaxel/administración & dosificación , Paclitaxel/uso terapéutico , Paclitaxel/efectos adversos , Paclitaxel/administración & dosificación , Inhibidores de Puntos de Control Inmunológico/efectos adversos , Inhibidores de Puntos de Control Inmunológico/uso terapéutico , Taxoides/efectos adversos , Taxoides/uso terapéutico , Supervivencia sin Progresión , Resultado del Tratamiento , Receptor de Muerte Celular Programada 1/antagonistas & inhibidores , Adulto , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Protocolos de Quimioterapia Combinada Antineoplásica/efectos adversos
9.
Cancer Med ; 13(17): e70228, 2024 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-39275896

RESUMEN

BACKGROUND: Despite the recognized therapeutic potential of programmed cell death protein 1/programmed death-ligand 1 (PD-1/PD-L1) inhibitors in advanced esophageal squamous cell carcinoma (ESCC), their role in neoadjuvant therapy and reliable efficacy biomarkers remain elusive. MATERIALS AND METHODS: We retrospectively analyzed locally advanced ESCC patients who underwent surgery following a 2-cycle platinum and paclitaxel-based treatment, with or without PD-1 inhibitors (January 2020-March 2023). We assessed peripheral blood indexes and tertiary lymphoid structures (TLS) density to evaluate their impact on pathological response and prognosis, leading to a clinical prediction model for treatment efficacy and survival. RESULTS: Of the 157 patients recruited, 106 received immunochemotherapy (ICT) and 51 received chemotherapy (CT) alone. The ICT group demonstrated a superior pathological response rate (PRR) (47.2% vs. 29.4%, p = 0.034) with comparable adverse events and postoperative complications. The ICT group also showed a median disease-free survival (DFS) of 39.8 months, unattained by the CT group. The 1-year DFS and overall survival (OS) rates were 73% and 91% for the ICT group, and 68% and 81% for the CT group, respectively. We found higher baseline activated T cells, lower baseline Treg cells, and a decreased posttreatment total lymphocyte and CD4+/CD8+ ratio predicted an enhanced PRR. Reduced posttreatment CD4+/CD8+ ratio and increased NK cells were associated with prolonged survival, while higher TLS density indicated poorer prognosis. Among ICT group, a lower posttreatment CD4+/CD8+ ratio indicated longer DFS and reduced posttreatment B cells indicated longer OS. A nomogram integrating these predictors was developed to forecast treatment efficacy and survival. CONCLUSION: The combination of PD-1 inhibitors and chemotherapy appears promising for locally advanced ESCC. Evaluating the differentiation status and dynamic changes of peripheral blood immune cells may provide valuable predictive insights into treatment efficacy and prognosis.


Asunto(s)
Neoplasias Esofágicas , Carcinoma de Células Escamosas de Esófago , Terapia Neoadyuvante , Humanos , Masculino , Carcinoma de Células Escamosas de Esófago/terapia , Carcinoma de Células Escamosas de Esófago/mortalidad , Carcinoma de Células Escamosas de Esófago/inmunología , Carcinoma de Células Escamosas de Esófago/patología , Carcinoma de Células Escamosas de Esófago/tratamiento farmacológico , Femenino , Terapia Neoadyuvante/métodos , Estudios Retrospectivos , Persona de Mediana Edad , Neoplasias Esofágicas/terapia , Neoplasias Esofágicas/mortalidad , Neoplasias Esofágicas/inmunología , Neoplasias Esofágicas/patología , Neoplasias Esofágicas/tratamiento farmacológico , Anciano , Inmunoterapia/métodos , Subgrupos Linfocitarios/inmunología , Pronóstico , Inhibidores de Puntos de Control Inmunológico/uso terapéutico , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Resultado del Tratamiento , Paclitaxel/administración & dosificación , Paclitaxel/uso terapéutico , Adulto , Esofagectomía
10.
Eur J Med Res ; 29(1): 454, 2024 Sep 11.
Artículo en Inglés | MEDLINE | ID: mdl-39261936

RESUMEN

BACKGROUND: Neoadjuvant chemotherapy (NAC) is an effective treatment for locally advanced breast cancer (BC). However, there are no effective biomarkers for evaluating its efficacy. CDR1-AS, well known for its important role in tumorigenesis, is a famous circular RNA involved in the chemosensitivity of cancers other than BC. However, the predictive role of CDR1-AS in the efficacy and prognosis of NAC for BC has not been fully elucidated. We herein aimed to clarify this role. METHODS: The present study included patients treated with paclitaxel-cisplatin-based NAC. The expression of CDR1-AS was detected by real-time quantitative reverse transcription polymerase chain reaction testing. The predictive value of CDR1-AS expression was examined in pathological complete response (pCR) after NAC using logistic regression analysis. The relationship between CDR1-AS expression and survival was demonstrated using the Kaplan-Meier method, and tested by log-rank test and Cox proportional hazards regression model. RESULTS: The present study enrolled 106 patients with BC. Multivariate logistic regression analysis revealed that CDR1-AS expression was an independent predictive factor for pCR (odds ratio [OR] = 0.244; 95% confidence interval [CI] 0.081-0.732; p = 0.012). Furthermore, pCR benefits with low CDR1-AS expression were observed across all subgroups. The Kaplan-Meier curves and log-rank test suggested that the CDR1-AS high-expression group showed significantly better disease-free survival (DFS; log-rank p = 0.022) and relapse-free survival (RFS; log-rank p = 0.012) than the CDR1-AS low-expression group. Multivariate analysis revealed that CDR1-AS expression was an independent prognostic factor for DFS (adjusted HR = 0.177; 95% CI 0.034-0.928, p = 0.041), RFS (adjusted HR = 0.061; 95% CI 0.006-0.643, p = 0.020), and distant disease-free survival (adjusted HR = 0.061; 95% CI 0.006-0.972, p = 0.047). CONCLUSIONS: CDR1-AS may be a potential novel predictive biomarker of pCR and survival benefit in patients with locally advanced BC receiving NAC. This may help identify specific chemosensitive individuals and build personalized treatment strategies.


Asunto(s)
Biomarcadores de Tumor , Neoplasias de la Mama , Terapia Neoadyuvante , Humanos , Neoplasias de la Mama/tratamiento farmacológico , Neoplasias de la Mama/mortalidad , Neoplasias de la Mama/patología , Neoplasias de la Mama/genética , Femenino , Terapia Neoadyuvante/métodos , Persona de Mediana Edad , Biomarcadores de Tumor/genética , Biomarcadores de Tumor/metabolismo , Pronóstico , Estudios Prospectivos , Adulto , ARN Circular/genética , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Anciano , China/epidemiología , Paclitaxel/uso terapéutico , Paclitaxel/administración & dosificación , Pueblos del Este de Asia
11.
Biol Pharm Bull ; 47(9): 1494-1503, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-39261049

RESUMEN

Cancer chemotherapy increases the risk of thrombosis; however, the mechanisms underlying this thrombosis are not completely understood. Plasminogen activator inhibitor (PAI)-1 is a key molecule in the fibrinolytic system that inhibits tissue plasminogen activator and urokinase, which converts plasminogen into plasmin; therefore, excess PAI-1 increases the risk of thrombosis. In this study, we investigated whether temporary treatment of the human luminal A-type breast cancer cell line MCF-7 with antitumor drugs clinically used for breast cancer therapy promotes PAI-1 production. Treatment of MCF-7 cells with paclitaxel (PTX), a microtubule-stabilizing antitumor drug, at 1 µM for 2 h elevated the PAI-1 concentration of the conditioned medium at 48 h after treatment but not in those treated with tamoxifen and cyclophosphamide. Microtubule assembly inhibitors vinblastine (VBT) and vincristine (VCT) also increased the PAI-1 concentration in the conditioned medium. PAI-1 (SERPINE1) expression was upregulated in MCF-7 cells after PTX, VBT, and VCT treatment; this increase in expression persisted for eight days. In contrast, PAI-1 production in MDA-MB-231 cells treated with PTX, VBT, or VCT did not increase with increasing PAI-1 concentration. This study demonstrated that temporary low-dose treatment with microtubule-associated anticancer drugs increased PAI-1 release from MCF-7 cells but not from MDA-MB-231 cells. These results indicate that chemotherapy against luminal A-type breast cancer using microtubule-associated drugs may cause thrombosis through the inhibition of the fibrinolytic system by PAI-1.


Asunto(s)
Neoplasias de la Mama , Paclitaxel , Inhibidor 1 de Activador Plasminogénico , Vinblastina , Humanos , Inhibidor 1 de Activador Plasminogénico/metabolismo , Paclitaxel/farmacología , Neoplasias de la Mama/tratamiento farmacológico , Neoplasias de la Mama/metabolismo , Neoplasias de la Mama/patología , Vinblastina/farmacología , Células MCF-7 , Femenino , Línea Celular Tumoral , Antineoplásicos Fitogénicos/farmacología , Vincristina/farmacología
12.
Taiwan J Obstet Gynecol ; 63(5): 637-650, 2024 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-39266144

RESUMEN

The WHO (World Health Organization) conducted an elimination of cervical cancer program using triple pillar intervention strategy to target 90%-70%-90% of women before the year 2030, including (1) a full vaccination of HPV (human papillomavirus) vaccine to 90% of girls <15 years of age; (2) a high-performance screening procedure to 70% of women during the reproductive age (at the age of 35 and 45 years of age); and (3) an appropriate and adequate treatment to 90% of women with confirmed diagnosis of cervical lesions. Among the aforementioned three pillars, a full HPV vaccination has been introduced in our previous review, of which we have discussed the policy and strategy of HPV vaccination in the world and also reviewed the efficacy of HPV vaccination, with a successful reduction of over 90% of HPV-associated neoplasms. The aims of the current review will target another pillar-an appropriate and adequate treatment to 90% of women with confirmed diagnosis of cervical lesions. Since the early-stage cervical cancer has a favorable outcome and the treatment recommendation has been established, therefore, the current review focuses on women with persistent, recurrent and metastatic cervical cancers (advanced cervical cancers), which are still a biggest challenge based on its extremely worse outcomes before the introduction of immune checkpoint inhibitors (ICIs). Integration of ICIs into conventional chemotherapy (paclitaxel-cisplatin) has become the new standard therapy for those patients with advanced cervical cancers. The recent clinical trials, such as KENOTE 826 and KENOTE A18 showing a dramatical improvement of both progression free survival and overall survival have approved the therapeutic efficacy of this combination as ICI plus paclitaxel-platinum (cisplatin or carboplatin) with/without bevacizumab to women with persistent, recurrent and metastatic cervical cancers.


Asunto(s)
Recurrencia Local de Neoplasia , Infecciones por Papillomavirus , Vacunas contra Papillomavirus , Neoplasias del Cuello Uterino , Humanos , Femenino , Neoplasias del Cuello Uterino/terapia , Neoplasias del Cuello Uterino/tratamiento farmacológico , Recurrencia Local de Neoplasia/terapia , Vacunas contra Papillomavirus/administración & dosificación , Infecciones por Papillomavirus/complicaciones , Infecciones por Papillomavirus/tratamiento farmacológico , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Paclitaxel/administración & dosificación , Paclitaxel/uso terapéutico
13.
Taiwan J Obstet Gynecol ; 63(5): 651-664, 2024 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-39266145

RESUMEN

The current review described a 55-year woman using 28 months to finish her surgery-based radiation-free multimodality treatment journey to fight International Federation of Gynaecology & Obstetrics (FIGO) 2018 clinical stage IIA2 (cT2aN0M0) squamous cell carcinoma (SCC) of the cervix. She received six cycles of perioperative adjuvant therapy, including three cycles of neoadjuvant therapy (NAT) and three cycles of postoperative adjuvant therapy by using combination of dose-dense chemotherapy (CT, weekly paclitaxel 80 mg/m2+triweekly cisplatin 40 mg/m2), immunotherapy (IO, triweekly pembrolizumab 200 mg) and half-dose anti-angiogenic agent (triweekly bevacizumab 7.5 mg/kg) plus interval radical surgery (radical hysterectomy + bilateral salpingo-oophorectomy + bilateral pelvic lymph node dissection + para-aortic lymph node sampling) and following maintenance therapy with monthly 22 cycles of half-dose of IO (pembrolizumab 100 mg) and concomitant 4 cycles of single-agent CT (paclitaxel 175 mg/m2) and 18 cycles of half-dose anti-angiogenic agent (bevacizumab 7.5 mg/kg). During the cervical SCC fighting journey, two unwanted adverse events (AEs) occurred. One was pseudo-progressive disease during the NAT treatment and pathology-confirmed upgrading FIGO stage IIIC1p (ypT2a1N1M0) after radical surgery and the other was the occurrence of hypothyroidism during the post operative adjuvant therapy. Based on this case we presented, we review the recent trend in the management of women with locally advanced cervical cancer (LACC) using the radiation-free but surgery-based multimodality strategy and highlight the strengths and limitations about perioperative adjuvant therapy with dose-dense CT + IO + half-dose anti-angiogenic agent and maintenance treatment of half-dose IO combining with short-term single agent CT and following long-term half-dose anti-angiogenic agent. All underscore the possibility that women with LACC have an opportunity to receive surgery-based RT-free multi-modality strategy to manage their diseases with satisfactory results. Additionally, the evolving role of IO plus CT with/without anti-angiogenic agent functioning as either primary treatment or adjuvant therapy for the treatment of advanced CC has been in process continuously. Moreover, the patient's positive response to IO, pembrolizumab as an example, both during the primary and maintenance therapy, highlights the importance of integrating IO into CT regimens for CC, especially in cases where conventional therapies, RT as an example, are insufficient or who do not want to receive RT-based treatment. The sustained disease-free status of the patient over several years reinforces the potential of IO to significantly increase long-term survival outcomes in CC patients, particularly for those with LACC.


Asunto(s)
Carcinoma de Células Escamosas , Histerectomía , Neoplasias del Cuello Uterino , Humanos , Femenino , Neoplasias del Cuello Uterino/terapia , Neoplasias del Cuello Uterino/patología , Persona de Mediana Edad , Carcinoma de Células Escamosas/terapia , Carcinoma de Células Escamosas/patología , Histerectomía/métodos , Terapia Neoadyuvante/métodos , Paclitaxel/administración & dosificación , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Estadificación de Neoplasias , Terapia Combinada , Bevacizumab/administración & dosificación , Bevacizumab/uso terapéutico , Quimioterapia Adyuvante/métodos , Anticuerpos Monoclonales Humanizados/administración & dosificación , Anticuerpos Monoclonales Humanizados/uso terapéutico , Cisplatino/administración & dosificación , Escisión del Ganglio Linfático
14.
Cell Commun Signal ; 22(1): 443, 2024 Sep 16.
Artículo en Inglés | MEDLINE | ID: mdl-39285292

RESUMEN

BACKGROUND: Epithelial ovarian cancer (EOC) is the deadliest gynaecological cancer with high mortality rates driven by the common development of resistance to chemotherapy. EOC frequently invades the omentum, an adipocyte-rich organ of the peritoneum and omental adipocytes have been implicated in promoting disease progression, metastasis and chemoresistance. The signalling mechanisms underpinning EOC omentum tropism have yet to be elucidated. METHODS: Three-dimensional co-culture models were used to explore adipocyte-EOC interactions. The impact of adipocytes on EOC proliferation, response to therapy and invasive capacity was assessed. Primary adipocytes and omental tissue were isolated from patients with ovarian malignancies and benign ovarian neoplasms. Exosomes were isolated from omentum tissue conditioned media and the effect of omentum-derived exosomes on EOC evaluated. Exosomal microRNA (miRNA) sequencing was used to identify miRNAs abundant in omental exosomes and EOC cells were transfected with highly abundant miRNAs miR-21, let-7b, miR-16 and miR-92a. RESULTS: We demonstrate the capacity of adipocytes to induce an invasive phenotype in EOC populations through driving epithelial-to-mesenchymal transition (EMT). Exosomes secreted by omental tissue of ovarian cancer patients, as well as patients without malignancies, induced proliferation, upregulated EMT markers and reduced response to paclitaxel therapy in EOC cell lines and HGSOC patient samples. Analysis of the omentum-derived exosomes from cancer patients revealed highly abundant miRNAs that included miR-21, let-7b, miR-16 and miR-92a that promoted cancer cell proliferation and protection from chemotherapy when transfected in ovarian cancer cells. CONCLUSIONS: These observations highlight the capacity of omental adipocytes to generate a pro-tumorigenic and chemoprotective microenvironment in ovarian cancer and other adipose-related malignancies.


Asunto(s)
Adipocitos , Exosomas , MicroARNs , Invasividad Neoplásica , Neoplasias Ováricas , Paclitaxel , Femenino , Exosomas/metabolismo , Humanos , Paclitaxel/farmacología , Paclitaxel/uso terapéutico , Neoplasias Ováricas/patología , Neoplasias Ováricas/tratamiento farmacológico , Neoplasias Ováricas/genética , Neoplasias Ováricas/metabolismo , Adipocitos/metabolismo , Adipocitos/efectos de los fármacos , Adipocitos/patología , MicroARNs/genética , MicroARNs/metabolismo , Línea Celular Tumoral , Epiplón/patología , Epiplón/metabolismo , Proliferación Celular/efectos de los fármacos , Carcinoma Epitelial de Ovario/genética , Carcinoma Epitelial de Ovario/patología , Carcinoma Epitelial de Ovario/tratamiento farmacológico , Carcinoma Epitelial de Ovario/metabolismo , Transición Epitelial-Mesenquimal/genética , Transición Epitelial-Mesenquimal/efectos de los fármacos
15.
Integr Cancer Ther ; 23: 15347354241278635, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-39256982

RESUMEN

Objective: Development of chemotherapy-induced peripheral neuropathy (CIPN) poses significant challenges in cancer treatment, often leading to dose reductions or treatment discontinuation. Goshajinkigan (GJG), a traditional Japanese medicine, has shown promise for alleviating CIPN symptoms. This multicenter, randomized controlled trial aimed to prospectively examine the efficacy of GJG in preventing paclitaxel-induced peripheral neuropathy. Methods: This study enrolled 55 patients with ovarian cancer undergoing first-line chemotherapy using paclitaxel and carboplatin. The participants were randomized into Groups A (GJG initiation after onset of grade 2 neuropathy) and B (prophylactic administration of GJG from 1 week before chemotherapy). The primary endpoints were the proportion with a maximum sensory neuropathy grade and visual analog scale (VAS) scores. The secondary endpoints were the rate of chemotherapy completion and paclitaxel dose reduction due to neurotoxicity. Results: Prophylactic GJG administration (Group B) resulted in significant benefits. While both groups had a similar incidence of grade 2 sensory neuropathy, all patients in Group B with grade 2 neuropathy completed treatment without requiring additional analgesics. Group B exhibited lower VAS scores by the end of the study, reduced reliance on adjuvant analgesics (27.3% vs 66.7% in Group A), and significantly less frequent persistent CIPN 6 months post-chemotherapy (18.2% vs 55.6% in Group A). No differences were observed in the chemotherapy completion rates or CIPN-related changes between the groups. Conclusion: GJG, when administered prophylactically, showed potential for mitigating CIPN symptoms during paclitaxel chemotherapy. While promising, further research with placebo controls and objective measures is essential to comprehensively validate these findings.


Asunto(s)
Medicamentos Herbarios Chinos , Paclitaxel , Enfermedades del Sistema Nervioso Periférico , Humanos , Paclitaxel/efectos adversos , Enfermedades del Sistema Nervioso Periférico/inducido químicamente , Enfermedades del Sistema Nervioso Periférico/prevención & control , Femenino , Persona de Mediana Edad , Medicamentos Herbarios Chinos/uso terapéutico , Anciano , Neoplasias Ováricas/tratamiento farmacológico , Adulto , Medicina Tradicional de Asia Oriental/métodos , Carboplatino/efectos adversos , Estudios Prospectivos , Pueblos del Este de Asia
16.
Lancet ; 404(10457): 1040-1050, 2024 Sep 14.
Artículo en Inglés | MEDLINE | ID: mdl-39236727

RESUMEN

BACKGROUND: The long-term impact of drug-coated balloon (DCB) angioplasty for the treatment of patients with de novo coronary artery lesions remains uncertain. We aimed to assess the non-inferiority of DCB angioplasty with rescue stenting to intended drug-eluting stent (DES) deployment for patients with de novo, non-complex coronary artery lesions. METHODS: REC-CAGEFREE I was an open-label, randomised, non-inferiority trial conducted at 43 sites in China. After successful lesion pre-dilatation, patients aged 18 years or older with de novo, non-complex coronary artery disease (irrespective of target vessel diameter) and an indication for percutaneous coronary intervention were randomly assigned (1:1), via a web-based centralised system with block randomisation (block size of two, four, or six) and stratified by site, to paclitaxel-coated balloon angioplasty with the option of rescue stenting due to an unsatisfactory result (DCB group) or intended deployment of second-generation thin-strut sirolimus-eluting stents (DES group). The primary outcome was the device-oriented composite endpoint (DoCE; including cardiovascular death, target vessel myocardial infarction, and clinically and physiologically indicated target lesion revascularisation) assessed at 24 months in the intention-to-treat (ITT) population (ie, all participants randomly assigned to treatment). Non-inferiority was established if the upper limit of the one-sided 95% CI for the absolute risk difference was smaller than 2·68%. Safety was assessed in the ITT population. This study is registered with ClinicalTrials.gov, NCT04561739. It is closed to accrual and extended follow-up is ongoing. FINDINGS: Between Feb 5, 2021, and May 1, 2022, 2272 patients were randomly assigned to the DCB group (1133 [50%]) or the DES group (1139 [50%]). Median age at the time of randomisation was 62 years (IQR 54-69), 1574 (69·3%) of 2272 were male, 698 (30·7%) were female, and all patients were of Chinese ethnicity. 106 (9·4%) of 1133 patients in the DCB group received rescue DES after unsatisfactory DCB angioplasty. As of data cutoff (May 1, 2024), median follow-up was 734 days (IQR 731-739). At 24 months, the DoCE occurred in 72 (6·4%) of 1133 patients in the DCB group and 38 (3·4%) of 1139 in the DES group, with a risk difference of 3·04% in the cumulative event rate (upper boundary of the one-sided 95% CI 4·52; pnon-inferiority=0·65; two-sided 95% CI 1·27-4·81; p=0·0008); the criterion for non-inferiority was not met. During intervention, no acute vessel closures occurred in the DCB group and one (0·1%) of 1139 patients in the DES group had acute vessel closure. Periprocedural myocardial infarction occurred in ten (0·9%) of 1133 patients in the DCB group and nine (0·8%) in the DES group. INTERPRETATION: In patients with de novo, non-complex coronary artery disease, irrespective of vessel diameter, a strategy of DCB angioplasty with rescue stenting did not achieve non-inferiority compared with the intended DES implantation in terms of the DoCE at 2 years, which indicates that DES should remain the preferred treatment for this patient population. FUNDING: Xijing Hospital and Shenqi Medical. TRANSLATION: For the Chinese translation of the abstract see Supplementary Materials section.


Asunto(s)
Angioplastia Coronaria con Balón , Enfermedad de la Arteria Coronaria , Stents Liberadores de Fármacos , Paclitaxel , Humanos , Masculino , Femenino , Persona de Mediana Edad , Angioplastia Coronaria con Balón/métodos , Paclitaxel/administración & dosificación , Paclitaxel/uso terapéutico , Enfermedad de la Arteria Coronaria/terapia , Anciano , Sirolimus/uso terapéutico , Sirolimus/administración & dosificación , Resultado del Tratamiento , Materiales Biocompatibles Revestidos , China/epidemiología , Intervención Coronaria Percutánea/métodos
17.
ACS Biomater Sci Eng ; 10(9): 5666-5674, 2024 Sep 09.
Artículo en Inglés | MEDLINE | ID: mdl-39166920

RESUMEN

Microtubules (MTs) are widely recognized as targets for cancer therapies. They are directly related to unique mechanical properties, closely dependent on MT architecture and tubulin molecular features. Taxol is known to affect tubulin interactions resulting in the stabilization of the MT lattice, and thus the hierarchical organization stability, mechanics, and function. A deeper understanding of the molecular mechanisms through which taxol modulates intertubulin interactions in the MT lattice, and consequently, its stability and mechanical response is crucial to characterize how MT properties are regulated by environmental factors, such as interacting ligands. In this study, a computational analysis of the effect of taxol on the MT was performed at different scales, combining molecular dynamics simulation, dynamical network analysis, and elastic network modeling. The results show that the taxol-induced conformational differences at the M-loop region increase the stability of the lateral interactions and the amount of surface in contact between laterally coupled tubulins. Moreover, the conformational rearrangements in the taxane binding site result in a different structural communication pattern. Finally, the different conformation of the tubulin heterodimers and the stabilized lateral interactions resulted in a tendency toward higher deformation of the vibrating MT in the presence of taxol. Overall, this work provides additional insights into taxol-induced stabilization and relates the conformational changes at the tubulin level to the MT mechanics. Besides providing useful insights into taxol effect on MT mechanics, a methodological framework that could be used to characterize the effects of other MT stabilizing agents is presented.


Asunto(s)
Microtúbulos , Simulación de Dinámica Molecular , Paclitaxel , Tubulina (Proteína) , Paclitaxel/farmacología , Paclitaxel/química , Microtúbulos/metabolismo , Microtúbulos/efectos de los fármacos , Tubulina (Proteína)/metabolismo , Tubulina (Proteína)/química , Sitios de Unión , Humanos
18.
CNS Neurosci Ther ; 30(9): e70012, 2024 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-39215404

RESUMEN

AIMS: Poly (ADP-ribose) polymerase (PARP) has been extensively investigated in human cancers. Recent studies verified that current available PARP inhibitors (Olaparib or Veliparib) provided clinical palliation of clinical patients suffering from paclitaxel-induced neuropathic pain (PINP). However, the underlying mechanism of PARP overactivation in the development of PINP remains to be investigated. METHODS AND RESULTS: We reported induction of DNA oxidative damage, PARP-1 overactivation, and subsequent nicotinamide adenine dinucleotide (NAD+) depletion as crucial events in the pathogenesis of PINP. Therefore, we developed an Olaparib PROTAC to achieve the efficient degradation of PARP. Continuous intrathecal injection of Olaparib PROTAC protected against PINP by inhibiting the activity of PARP-1 in rats. PARP-1, but not PARP-2, was shown to be a crucial enzyme in the development of PINP. Specific inhibition of PARP-1 enhanced mitochondrial redox metabolism partly by upregulating the expression and deacetylase activity of sirtuin-3 (SIRT3) in the dorsal root ganglions and spinal cord in the PINP rats. Moreover, an increase in the NAD+ level was found to be a crucial mechanism by which PARP-1 inhibition enhanced SIRT3 activity. CONCLUSION: The findings provide a novel insight into the mechanism of DNA oxidative damage in the development of PINP and implicate PARP-1 as a possible therapeutic target for clinical PINP treatment.


Asunto(s)
Daño del ADN , Mitocondrias , Neuralgia , Paclitaxel , Poli(ADP-Ribosa) Polimerasa-1 , Animales , Masculino , Ratas , Modelos Animales de Enfermedad , Daño del ADN/efectos de los fármacos , Ganglios Espinales/efectos de los fármacos , Ganglios Espinales/metabolismo , Mitocondrias/efectos de los fármacos , Mitocondrias/metabolismo , NAD/metabolismo , Neuralgia/inducido químicamente , Neuralgia/metabolismo , Neuralgia/tratamiento farmacológico , Estrés Oxidativo/efectos de los fármacos , Paclitaxel/toxicidad , Ftalazinas/farmacología , Piperazinas/farmacología , Poli(ADP-Ribosa) Polimerasa-1/metabolismo , Poli(ADP-Ribosa) Polimerasa-1/antagonistas & inhibidores , Inhibidores de Poli(ADP-Ribosa) Polimerasas/farmacología , Ratas Sprague-Dawley , Médula Espinal/efectos de los fármacos , Médula Espinal/metabolismo
19.
Artículo en Chino | MEDLINE | ID: mdl-39107124

RESUMEN

Objective: To assess the efficacy of neoadjuvant treatment with PD-1 (programmed cell death protein 1) inhibitors combined with paclitaxel (albumin-conjugated) and cisplatin (TP regimen) for locally advanced hypopharyngeal squamous cell carcinoma and laryngeal organ function preservation. Methods: Data of 53 patients, including 51 males and 2 females, aged 38-70 years old, who were diagnosed with locally advanced hypopharyngeal squamous carcinoma confirmed by histology and enhanced CT at the Cancer Prevention and Control Center of Sun Yat-sen University during the initial treatment from January 1, 2019 to January 15, 2023, were retrospectively analyzed. All patients received neoadjuvant therapy with PD-1 inhibitors combined with albumin-bound paclitaxel (260 mg/m2) and cisplatin (60 mg/m2) for 3 to 4 cycles. The main outcome measures were larynx dysfunction-free survival (LDFS), overall survival (OS), and progression-free survival (PFS). Survival curves were plotted using the Kaplan-Meier method, and Cox multifactorial analysis was further performed if Cox univariate analysis was statistically significant. Results: The overall efficiency was 90.6% (48/53). The 1-year and 2-year LDFS rates were 83.8% (95%CI: 74.0% to 94.8%) and 50.3% (95%CI: 22.1% to 91.6%), the 1-year and 2-year OS rates were 95.2% (95%CI: 88.9% to 100.0%) and 58.2% (95%CI: 25.6% to 81.8%), and the 1-year and 2-year PFS rates were 83.9% (95%CI: 74.2% to 94.9%) and 53.5% (95%CI: 32.1% to 89.1%). Adverse events associated with the neoadjuvant therapy were mainly myelosuppression (45.3%), gastrointestinal reactions (37.7%) and hypothyroidism (20.8%). Conclusion: The neoadjuvant treatment of locally advanced hypopharyngeal squamous cell carcinoma using PD-1 inhibitors combined with paclitaxel and cisplatin can provide with a higher survival rate with a improved laryngeal organ function preservation rate.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica , Cisplatino , Neoplasias Hipofaríngeas , Terapia Neoadyuvante , Paclitaxel , Humanos , Masculino , Persona de Mediana Edad , Femenino , Cisplatino/uso terapéutico , Paclitaxel/uso terapéutico , Paclitaxel/administración & dosificación , Adulto , Anciano , Neoplasias Hipofaríngeas/terapia , Neoplasias Hipofaríngeas/tratamiento farmacológico , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Estudios Retrospectivos , Albúminas/uso terapéutico , Albúminas/administración & dosificación , Carcinoma de Células Escamosas de Cabeza y Cuello/tratamiento farmacológico , Carcinoma de Células Escamosas de Cabeza y Cuello/terapia , Carcinoma de Células Escamosas/tratamiento farmacológico , Carcinoma de Células Escamosas/terapia , Carcinoma de Células Escamosas/patología , Receptor de Muerte Celular Programada 1/antagonistas & inhibidores
20.
Front Immunol ; 15: 1370972, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-39206190

RESUMEN

A 73-year-old man with lung squamous cell carcinoma was administered carboplatin + nab-paclitaxel + pembrolizumab for four cycles. Subsequently, he presented with multiple purpuras on his extremities, joint swelling on his fingers, abdominal pain, and diarrhea, accompanied by acute kidney injury (AKI), increased proteinuria, hematuria, and elevated C-reactive protein levels. Skin biopsy showed leukocytoclastic vasculitis as well as IgA and C3 deposition in the vessel walls. Based on these findings, the patient was diagnosed with IgA vasculitis as an immune-related adverse event (irAE) induced by carboplatin + nab-paclitaxel + pembrolizumab. After discontinuation of pembrolizumab and glucocorticoids, the symptoms immediately resolved. Regular monitoring of skin, blood tests, and urinalysis are necessary, and the possibility of irAE IgA vasculitis should be considered in cases of purpura and AKI during treatment with immune checkpoint inhibitors.


Asunto(s)
Albúminas , Anticuerpos Monoclonales Humanizados , Protocolos de Quimioterapia Combinada Antineoplásica , Carboplatino , Carcinoma de Células Escamosas , Neoplasias Pulmonares , Paclitaxel , Humanos , Masculino , Anciano , Carboplatino/efectos adversos , Carboplatino/administración & dosificación , Carboplatino/uso terapéutico , Paclitaxel/efectos adversos , Paclitaxel/administración & dosificación , Paclitaxel/uso terapéutico , Anticuerpos Monoclonales Humanizados/efectos adversos , Anticuerpos Monoclonales Humanizados/uso terapéutico , Anticuerpos Monoclonales Humanizados/administración & dosificación , Neoplasias Pulmonares/tratamiento farmacológico , Protocolos de Quimioterapia Combinada Antineoplásica/efectos adversos , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Carcinoma de Células Escamosas/tratamiento farmacológico , Albúminas/efectos adversos , Albúminas/administración & dosificación , Vasculitis por IgA/inducido químicamente , Vasculitis por IgA/diagnóstico , Inmunoglobulina A , Inhibidores de Puntos de Control Inmunológico/efectos adversos
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