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1.
Cancers (Basel) ; 16(17)2024 Aug 29.
Artículo en Inglés | MEDLINE | ID: mdl-39272864

RESUMEN

Diffuse large B cell lymphoma (DLBCL) is the most diagnosed, aggressive non-Hodgkin lymphoma, with ~40% of patients experiencing refractory or relapsed disease. Given the low response rates to current therapy, alternative treatment strategies are necessary to improve patient outcomes. Here, we sought to develop an easily accessible new xenograft mouse model that better recapitulates the human disease for preclinical studies. We generated two Luciferase (Luc)-EGFP-expressing human DLBCL cell lines representing the different DLBCL cell-of-origin subtypes. After intravenous injection of these cells into humanized NSG mice, we monitored the tumor growth and evaluated the organ-specific engraftment/progression period. Our results showed that human IL6-expressing NSG (NSG-IL6) mice were highly permissive for DLBCL cell growth. In NSG-IL6 mice, systemic engraftments of both U2932 activated B cell-like- and VAL germinal B cell-like-DLBCL (engraftment rate; 75% and 82%, respectively) were detected within 2nd-week post-injection. In the organ-specific ex vivo evaluation, both U2932-Luc and VAL-Luc cells were initially engrafted and expanded in the spleen, liver, and lung and subsequently in the skeleton, ovary, and brain. Consistent with the dual BCL2/MYC translocation association with poor patient outcomes, VAL cells showed heightened proliferation in human IL6-conditioned media and caused rapid tumor expansion and early death in the engrafted mice. We concluded that the U2932 and VAL cell-derived human IL6-expressing mouse models reproduced the clinical features of an aggressive DLBCL with a highly consistent pattern of tumor development. Based on these findings, NSG mice expressing human IL6 have the potential to serve as a new tool to develop DLBCL xenograft models to overcome the limitations of standard subcutaneous DLBCL xenografts.

2.
Environ Pollut ; 361: 124850, 2024 Aug 29.
Artículo en Inglés | MEDLINE | ID: mdl-39216672

RESUMEN

This study evaluated the effects of post-calcination on the charge properties and active sites of Mg/Al layered double hydroxide-decorated spent coffee ground biochars (LDHMgAl@SCGB) governing adsorption behaviors and mechanisms of arsenic (AsV) and antimony (SbV) anions from aqueous phases. Post-calcinated LDHMgAl@SCGB (PLDHMgAl@SCGB) exhibited higher adsorption capacities for AsV and SbV compared to spent coffee ground biochars (SCGB) and LDHMgAl@SCGB as post-calcination of LDHMgAl@SCGB enhanced the charge properties (surface zeta potential at pH 7.0: SCGB = -21.8 mV, LDHMgAl@SCGB = 28.5 mV, and PLDHMgAl@SCGB = 34.4 mV) and increased active sites by eliminating the anions (i.e., Cl- ions) and water molecules at its interlayers. The calculated kinetic, intra-particle diffusion, and isotherm parameters indicated that the chemisorption and intra-particle diffusion were mainly responsible for the adsorption of AsV and SbV by SCGB, LDHMgAl@SCGB, and PLDHMgAl@SCGB. Moreover, post-calcination of LDHMgAl@SCGB enhanced its selectivity toward AsV and SbV by reinforcing the electrostatic surface complexation via its improvement of charge properties. Since PLDHMgAl@SCGB exhibited the excellent reusability for the adsorption of AsV (reuse efficiency >63.6%) and SbV (reuse efficiency >52.1%), it can be concluded that post-calcination of LDHMgAl@SCGB is a promising method for improving the adsorption capacities for AsV and SbV in real water matrices.

3.
Sci Immunol ; 9(97): eadn6509, 2024 Jul 19.
Artículo en Inglés | MEDLINE | ID: mdl-39028827

RESUMEN

Most patients treated with US Food and Drug Administration (FDA)-approved chimeric antigen receptor (CAR) T cells eventually experience disease progression. Furthermore, CAR T cells have not been curative against solid cancers and several hematological malignancies such as T cell lymphomas, which have very poor prognoses. One of the main barriers to the clinical success of adoptive T cell immunotherapies is CAR T cell dysfunction and lack of expansion and/or persistence after infusion. In this study, we found that CD5 inhibits CAR T cell activation and that knockout (KO) of CD5 using CRISPR-Cas9 enhances the antitumor effect of CAR T cells in multiple hematological and solid cancer models. Mechanistically, CD5 KO drives increased T cell effector function with enhanced cytotoxicity, in vivo expansion, and persistence, without apparent toxicity in preclinical models. These findings indicate that CD5 is a critical inhibitor of T cell function and a potential clinical target for enhancing T cell therapies.


Asunto(s)
Antígenos CD5 , Inmunoterapia Adoptiva , Linfocitos T , Animales , Inmunoterapia Adoptiva/métodos , Antígenos CD5/inmunología , Ratones , Humanos , Linfocitos T/inmunología , Linfocitos T/trasplante , Receptores Quiméricos de Antígenos/inmunología , Receptores Quiméricos de Antígenos/genética , Línea Celular Tumoral , Sistemas CRISPR-Cas , Femenino
4.
Plants (Basel) ; 13(14)2024 Jul 16.
Artículo en Inglés | MEDLINE | ID: mdl-39065475

RESUMEN

Archaeological excavations led by Yung-jo Lee and Jong-yoon Woo were carried out twice at the Sorori paleolithic site, Cheongju, in the Republic of Korea, at the upper stream of the Geumgang river, the Miho riverside. A total of 127 rice seeds were excavated, including 18 ancient rice and 109 Quasi-rice, in 1998 and 2001. At the first excavation, eleven short japonica-type ancient rice and one slender smooth ancient rice with two kinds of Quasi-rice were excavated. The average length of the 11 short rice grains obtained from the first and second excavation was 7.19 mm and the average width was 3.08 mm, respectively. The Quasi-rice are apparently different from the rice and do not have bi-peak protuberances on their glume surface. At the second excavation, six short ancient rice chaffs and some Quasi-rice 2 were found. These short-grained ancient rice were comparable to the ancient rice that were excavated at the Illsan Neolithic site. Geologists and radiologists confirmed that the peat layer in which the rice found was older than 15,000 years. In this study, the morphological characteristics, crushing, and DNA band patterns related to the genetic polymorphism of rice grains in Cheongju Sorori were compared and analyzed for genetic similarities and differences with wild rice, weed rice, and modern rice. The morphological, ecological, and physiological variations in rice grains excavated from the Sorori site were presumed to denote the origin of rice domestication in Korea. It is also suggested that the results of the DNA sequencing of excavated rice are very important clues in estimating the origin of the early domestication of rice.

5.
Int J Mol Sci ; 25(13)2024 Jun 28.
Artículo en Inglés | MEDLINE | ID: mdl-39000251

RESUMEN

Ubiquitination plays a crucial role in regulating signal pathways during the post-translation stage of protein synthesis in response to various environmental stresses. E3 ubiquitin ligase has been discovered to ultimately control various intracellular activities by imparting specificity to proteins to be degraded. This study was conducted to confirm biological and genetic functions of the U-box type E3 ubiquitin ligase (PUB) gene against biotic stress in rice (Oryza sativa L.). OsPUB9 gene-specific sgRNA were designed and transformants were developed through Agrobacterium-mediated transformation. Deep sequencing using callus was performed to confirm the mutation type of T0 plants, and a total of three steps were performed to select null individuals without T-DNA insertion. In the case of the OsPUB9 gene-edited line, a one bp insertion was generated by gene editing, and it was confirmed that early stop codon and multiple open reading frame (ORF) sites were created by inserting thymine. It is presumed that ubiquitination function also changed according to the change in protein structure of U-box E3 ubiquitin ligase. The OsPUB9 gene-edited null lines were inoculated with bacterial leaf blight, and finally confirmed to have a resistance phenotype similar to Jinbaek, a bacterial blight-resistant cultivar. Therefore, it is assumed that the amino acid sequence derived from the OsPUB9 gene is greatly changed, resulting in a loss of the original protein functions related to biological mechanisms. Comprehensively, it was confirmed that resistance to bacterial leaf blight stress was enhanced when a mutation occurred at a specific site of the OsPUB9 gene.


Asunto(s)
Sistemas CRISPR-Cas , Resistencia a la Enfermedad , Edición Génica , Oryza , Enfermedades de las Plantas , Proteínas de Plantas , Ubiquitina-Proteína Ligasas , Oryza/genética , Oryza/microbiología , Edición Génica/métodos , Resistencia a la Enfermedad/genética , Enfermedades de las Plantas/microbiología , Enfermedades de las Plantas/genética , Ubiquitina-Proteína Ligasas/genética , Ubiquitina-Proteína Ligasas/metabolismo , Proteínas de Plantas/genética , Proteínas de Plantas/metabolismo , Plantas Modificadas Genéticamente/genética
6.
Nat Immunol ; 25(6): 1020-1032, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38831106

RESUMEN

The efficacy of T cell-based immunotherapies is limited by immunosuppressive pressures in the tumor microenvironment. Here we show a predominant role for the interaction between BTLA on effector T cells and HVEM (TNFRSF14) on immunosuppressive tumor microenvironment cells, namely regulatory T cells. High BTLA expression in chimeric antigen receptor (CAR) T cells correlated with poor clinical response to treatment. Therefore, we deleted BTLA in CAR T cells and show improved tumor control and persistence in models of lymphoma and solid malignancies. Mechanistically, BTLA inhibits CAR T cells via recruitment of tyrosine phosphatases SHP-1 and SHP-2, upon trans engagement with HVEM. BTLA knockout thus promotes CAR signaling and subsequently enhances effector function. Overall, these data indicate that the BTLA-HVEM axis is a crucial immune checkpoint in CAR T cell immunotherapy and warrants the use of strategies to overcome this barrier.


Asunto(s)
Inmunoterapia Adoptiva , Receptores Quiméricos de Antígenos , Receptores Inmunológicos , Miembro 14 de Receptores del Factor de Necrosis Tumoral , Microambiente Tumoral , Animales , Humanos , Inmunoterapia Adoptiva/métodos , Miembro 14 de Receptores del Factor de Necrosis Tumoral/metabolismo , Miembro 14 de Receptores del Factor de Necrosis Tumoral/inmunología , Miembro 14 de Receptores del Factor de Necrosis Tumoral/genética , Ratones , Microambiente Tumoral/inmunología , Receptores Quiméricos de Antígenos/inmunología , Receptores Quiméricos de Antígenos/metabolismo , Receptores Quiméricos de Antígenos/genética , Receptores Inmunológicos/metabolismo , Receptores Inmunológicos/genética , Linfocitos T Reguladores/inmunología , Transducción de Señal , Línea Celular Tumoral , Neoplasias/inmunología , Neoplasias/terapia , Ratones Noqueados
7.
Plants (Basel) ; 13(11)2024 Jun 03.
Artículo en Inglés | MEDLINE | ID: mdl-38891353

RESUMEN

With the exponential advancements in biotechnology research, various studies are being conducted to overcome productivity limitations in crop breeding [...].

8.
Cytotherapy ; 26(5): 506-511, 2024 05.
Artículo en Inglés | MEDLINE | ID: mdl-38483365

RESUMEN

BACKGROUND AIMS: The successful development of CD19-targeted chimeric antigen receptor (CAR) T-cell therapies has led to an exponential increase in the number of patients recieving treatment and the advancement of novel CAR T products. Therefore, there is a strong need to develop streamlined platforms that allow rapid, cost-effective, and accurate measurement of the key characteristics of CAR T cells during manufacturing (i.e., cell number, cell size, viability, and basic phenotype). METHODS: In this study, we compared the novel benchtop cell analyzer Moxi GO II (ORFLO Technologies), which enables simultaneous evaluation of all the aforementioned parameters, with current gold standards in the field: the Multisizer Coulter Counter (cell counter) and the BD LSRFortessa (flow cytometer). RESULTS: Our results demonstrated that the Moxi GO II can accurately measure cell number and cell size (i.e., cell volume) while simultaneously assessing simple two-color flow cytometry parameters, such as CAR T-cell viability and CD4 or CAR expression. CONCLUSIONS: These measurements are comparable with those of gold standard instruments, demonstrating that the Moxi GO II is a promising platform for quickly monitoring CAR T-cell growth and phenotype in research-grade and clinical samples.


Asunto(s)
Supervivencia Celular , Citometría de Flujo , Inmunoterapia Adoptiva , Receptores Quiméricos de Antígenos , Linfocitos T , Humanos , Receptores Quiméricos de Antígenos/inmunología , Receptores Quiméricos de Antígenos/metabolismo , Citometría de Flujo/métodos , Inmunoterapia Adoptiva/métodos , Linfocitos T/inmunología , Linfocitos T/metabolismo , Antígenos CD19/inmunología , Antígenos CD19/metabolismo , Fenotipo , Receptores de Antígenos de Linfocitos T/inmunología , Receptores de Antígenos de Linfocitos T/metabolismo , Inmunofenotipificación/métodos , Tamaño de la Célula
9.
Artículo en Chino | WPRIM (Pacífico Occidental) | ID: wpr-1021425

RESUMEN

BACKGROUND:Currently,the dura mater is clinically repaired using autologous tissue or materials such as gelatin sponge,but all of them have their inherent defects.Therefore,there is an urgent need for a biomaterial that can promote dural repair. OBJECTIVE:The two-sided anisotropic electrospun membrane was constructed by using directional electrospinning technology and collagen self-assembly technology,and was used as a carrier for bone marrow mesenchymal stem cells to investigate various physicochemical properties and biological characteristics of the artificial dura mater. METHODS:Ordered polylactic acid electrospun fibers with double-sided(collagen protein on one side and polylactic acid on the other side)anisotropic electrospun membranes(collagen group),disordered polylactic acid electrospun membranes(disordered fiber group),and ordered oriented polylactic acid electrospun membranes(ordered fiber group)were prepared by electrospinning technique as well as collagen self-assembly technique.Scanning electron microscopy,mechanical stretching,water contact angle testing,and degradation experiments were used to characterize the physicochemical properties of the electrospun membranes.Electrospun membranes in the collagen group(bone marrow mesenchymal stem cells were inoculated on the collagen surface to obtain the stem cell-engineered electrospun membranes),disordered fiber group and ordered fiber group were cocultured with bone marrow mesenchymal stem cells.The biocompatibility of electrospun membranes was evaluated using CCK-8 assay and live/dead staining.Integrin β1 immunofluorescence staining was used to evaluate the adhesion characteristics of electrospun membranes.The stem cell-engineered electrospun membrane and the electrospun membrane in the collagen group were cocultured with bone marrow macrophages respectively.Immunomodulatory properties were assessed by detecting the expression of inflammation-related genes using inducible nitric oxide synthase(M1 type),CD206(M2 type)immunofluorescence staining,and qRT-PCR. RESULTS AND CONCLUSION:(1)The oriented electrospun fiber membrane could mimic the structure of the longitudinally aligned natural dura mater,and the addition of collagen increased the hydrophilicity of the fiber membrane by about 2-fold and the mechanical properties by 1.2-fold.(2)When cocultured with bone marrow mesenchymal stem cells,CCK-8 assay and live/dead staining suggested that the cellular bioactivity in the collagen group was significantly higher than that in the disordered fiber group and ordered fiber group.Immunofluorescence staining revealed that the expression of integrin β1 in the collagen group was about 2.6 times higher than that of the disordered and ordered fiber groups,and the cell spreading morphology was good.(3)When cocultured with bone marrow macrophages,immunofluorescence staining exhibited that the fluorescence intensity of M1 type macrophages in the stem cell-engineered electrospun membrane group was lower than that in the collagen group(P<0.01),and the fluorescence intensity of M2 type macrophages was higher than that in the collagen group(P<0.01).qRT-PCR demonstrated that proinflammatory gene tumor necrosis factor α and interleukin-1β mRNA expression in the stem cell-engineered electrospun membrane group was lower than that of the collagen group(P<0.001);anti-inflammatory genes such as interleukin-10 and transforming growth factor β mRNA expressions were higher than those in the collagen group(P<0.001).(4)The above results suggest that the stem cell-engineered amphipathic artificial dura mimics the directional structure of normal dura,with the inner surface facilitating cell growth and adhesion and the outer edge avoiding tissue adhesion,while the polarization of macrophages to the M2 subtype is promoted and the local inflammatory microenvironment is regulated through the mesenchymal stem cell paracrine component.

10.
Artículo en Chino | WPRIM (Pacífico Occidental) | ID: wpr-1021547

RESUMEN

BACKGROUND:Oxidative stress plays a critical role in intervertebral disc degeneration.As a reducing material with good biocompatibility,black phosphorus quantum dots have the potential to resist oxidative stress and retard intervertebral disc degeneration.OBJECTIVE:To evaluate the effect of black phosphorus quantum dots on scavenging reactive oxygen species in the microenvironment of an intervertebral disc through in vivo and in vitro experiments,and further explore the role of black phosphorus quantum dots in Nrf2/ARE pathway and intervertebral disc inflammation.METHODS:Black phosphorus quantum dots were prepared by a liquid exfoliation technique.(1)In vitro experiment:The nucleus pulposus cells of SD rats were isolated and extracted,and the passages 2-4 nucleus pulposus cells were cocultured with different solutions,including F12-DMEM medium(blank group),black phosphorus quantum dot solution,hydrogen peroxide solution,hydrogen peroxide+black phosphorus quantum dot solution,hydrogen peroxide+black phosphorus quantum dot+Nrf2 specific inhibitor ML385 solution.Cell live/dead staining and intracellular reactive oxygen species,mitochondrial membrane potential and western blot assay were performed respectively.(2)In vivo experiment:Thirty SD rats were randomly divided into sham operation,puncture and puncture + black phosphorus groups,with 10 rats in each group.A Co7-10 intervertebral disc degeneration model was established using intervertebral disc puncture in the puncture group and the puncture+black phosphorus group.Black phosphorus quantum dot solution was injected in the intervertebral disc after a puncture in the puncture+black phosphorus group.The intervertebral disc tissue imaging and histological staining were evaluated at 4 and 8 weeks after surgery.RESULTS AND CONCLUSION:(1)In vitro experiment:Live/dead staining revealed that the black phosphorus quantum dots had good biocompatibility,were non-toxic to cells,and had a protective effect on nucleus pulposus cells under oxidative stress.Intracellular reactive oxygen species and JC-1 fluorescent probes showed that black phosphorus quantum dots could regulate the reduction of mitochondrial membrane potential caused by oxidative stress in nucleus pulposus cells and protected cells from hydrogen peroxidation-induced intracellular oxidative stress.Western blot analysis showed that compared with the blank group,the protein expressions of Nrf2,heme oxygenase 1,quinone oxidoreductase and type Ⅱ collagen were decreased in the hydrogen peroxide group(P<0.05),while the protein expressions of tumor necrosis factor α,interleukin 1β,matrix metalloproteinase 13 and p65 were increased(P<0.05).The addition of black phosphorus quantum dots could reverse the inhibitory effect of hydrogen peroxide on the Nrf2 pathway and reduce the inflammatory response caused by oxidative stress,but NrF2-specific inhibitors could cancel this effect.(2)In vivo experiment:X-ray and MRI demonstrated that at 4 and 8 weeks after surgery,the intervertebral disc height and water content of nucleus pulposus in the puncture group were lower than those in the sham operation group(P<0.05),and the intervertebral disc height and water content of nucleus pulposus in the puncture+black phosphorus group were higher than those in the puncture group(P<0.05).Histological staining exhibited that the degree of intervertebral disc degeneration in the puncture+black phosphorus group was less than that in the puncture group,and the expression of heme oxygenase 1 protein was higher than that in the puncture+black phosphorus group.(3)Our results have indicated that black phosphorus quantum dots can exert an antioxidant effect and delay intervertebral disc degeneration by regulating Nrf2/ARE pathway.

11.
Artículo en Inglés | WPRIM (Pacífico Occidental) | ID: wpr-1044521

RESUMEN

The correlation between hearing loss (HL) and physical performance in patients receiving maintenance hemodialysis (MHD) remains poorly investigated. This study explored the association between HL and physical performance in patients on MHD. Methods: This multicenter cross-sectional study was conducted between July 2020 and April 2021 in seven hemodialysis centers in Shanghai and Suzhou, China. The hearing assessment was performed using pure-tone average (PTA). Physical performance was assessed using the Timed Up and Go Test (TUGT), handgrip strength, and gait speed. Results: Finally, 838 adult patients (male, 516 [61.6%]; 61.2 ± 2.6 years) were enrolled. Among them, 423 (50.5%) had mild to profound HL (male, 48.6% and female, 53.4%). Patients with HL had poorer physical performance than patients without HL (p < 0.001). TUGT was positively correlated with PTA (r = 0.265, p < 0.001), while handgrip strength and gait speed were negatively correlated with PTA (r = –0.356, p < 0.001 and r = –0.342, p < 0.001, respectively). Physical performance in patients aged <60 years showed significant dose-response relationships with HL. After adjusting for confounders, the odds ratios (95% confidence intervals) for HL across the TUGT quartiles (lowest to highest) were 1.00 (reference), 1.15 (0.73–1.81), 1.69 (1.07–2.70), and 2.87 (1.69–4.88) (p for trend = 0.005). Conclusion: Lower prevalence of HL was associated with a faster TUGT and a stronger handgrip strength in patients on MHD.

12.
Mol Cancer ; 22(1): 200, 2023 12 09.
Artículo en Inglés | MEDLINE | ID: mdl-38066564

RESUMEN

BACKGROUND: Commercial anti-CD19 chimeric antigen receptor T-cell therapies (CART19) are efficacious against advanced B-cell non-Hodgkin lymphoma (NHL); however, most patients ultimately relapse. Several mechanisms contribute to this failure, including CD19-negative escape and CAR T dysfunction. All four commercial CART19 products utilize the FMC63 single-chain variable fragment (scFv) specific to a CD19 membrane-distal epitope and characterized by slow association (on) and dissociation (off) rates. We hypothesized that a novel anti-CD19 scFv that engages an alternative CD19 membrane-proximal epitope independent of FMC63 and that is characterized by faster on- and off-rates could mitigate CART19 failure and improve clinical efficacy. METHODS: We developed an autologous CART19 product with 4-1BB co-stimulation using a novel humanized chicken antibody (h1218). This antibody is specific to a membrane-proximal CD19 epitope and harbors faster on/off rates compared to FMC63. We tested h1218-CART19 in vitro and in vivo using FMC63-CART19-resistant models. We conducted a first-in-human multi-center phase I clinical trial to test AT101 (clinical-grade h1218-CART19) in patients with relapsed or refractory (r/r) NHL. RESULTS: Preclinically, h1218- but not FMC63-CART19 were able to effectively eradicate lymphomas expressing CD19 point mutations (L174V and R163L) or co-expressing FMC63-CAR19 as found in patients relapsing after FMC63-CART19. Furthermore, h1218-CART19 exhibited enhanced killing of B-cell malignancies in vitro and in vivo compared with FMC63-CART19. Mechanistically, we found that h1218-CART19 had reduced activation-induced cell death (AICD) and enhanced expansion compared to FMC63-CART19 owing to faster on- and off-rates. Based on these preclinical results, we performed a phase I dose-escalation trial, testing three dose levels (DL) of AT101 (the GMP version of h1218) using a 3 + 3 design. In 12 treated patients (7 DLBCL, 3 FL, 1 MCL, and 1 MZL), AT101 showed a promising safety profile with 8.3% grade 3 CRS (n = 1) and 8.3% grade 4 ICANS (n = 1). In the whole cohort, the overall response rate was 91.7%, with a complete response rate of 75.0%, which improved to 100% in DL-2 and -3. AT101 expansion correlates with CR and B-cell aplasia. CONCLUSIONS: We developed a novel, safe, and potent CART19 product that recognizes a membrane-proximal domain of CD19 with fast on- and off-rates and showed significant efficacy and promising safety in patients with relapsed B-cell NHL. TRIAL REGISTRATION: NCT05338931; Date: 2022-04-01.


Asunto(s)
Linfoma no Hodgkin , Receptores de Antígenos de Linfocitos T , Receptores Quiméricos de Antígenos , Humanos , Anticuerpos , Antígenos CD19 , Epítopos/metabolismo , Inmunoterapia Adoptiva/efectos adversos , Linfoma no Hodgkin/terapia , Linfoma no Hodgkin/metabolismo , Recurrencia Local de Neoplasia/metabolismo , Receptores Quiméricos de Antígenos/metabolismo , Receptores de Antígenos de Linfocitos T/antagonistas & inhibidores
13.
Medicine (Baltimore) ; 102(48): e36441, 2023 Dec 01.
Artículo en Inglés | MEDLINE | ID: mdl-38050249

RESUMEN

BACKGROUND: This study examined the effects of systemic vibration exercises on cerebral palsy patients. METHODS: Literature published in Cumulated Index to Nursing and Allied Health Literature (CINAHL), Cochrane library, Embase, Physiotherapy Evidence Database (PEDro), and PubMed was reviewed. A total of 2978 studies were initially retrieved. After further reading of the full texts 17 articles were finally included. A quality assessment of the included studies was conducted using the risk of bias (RoB) 2.0, and the Funnel plot and the Egger test were conducted to confirm the publication bias. Subgroup analysis was carried out according to the dependent variables, the international classification of functioning, disability, and health (ICF), frequency, treatment period and age. RESULTS: The overall effect size of homogeneity was 0.474 (CI = 0.148-0.801). The analysis of the dependent variables showed the following order of the effect size: balance, muscle strength, spasticity, bone density, range of motion of the joint, gait function, and motor function. In the ICF classification, the effect size was observed to follow the order of body structure and function, activity, and participation. The effect size in the intervention according to the treatment period showed the following order: 7 to 12 weeks, 1 to 6 weeks, and 14 to 24 weeks. The age-dependent classification showed the following order in the effect size: school age, adolescent and adult, and infant and school age. CONCLUSIONS: Systemic vibration is the most effective intervention to improve the balance and gait in patients with cerebral palsy and improve the body structure and function according to the ICF.


Asunto(s)
Parálisis Cerebral , Adulto , Adolescente , Humanos , Parálisis Cerebral/terapia , Vibración/uso terapéutico , Terapia por Ejercicio , Modalidades de Fisioterapia , Ejercicio Físico
14.
Int J Mol Sci ; 24(22)2023 Nov 16.
Artículo en Inglés | MEDLINE | ID: mdl-38003586

RESUMEN

Genome-editing technology is a type of genetic engineering in which DNA is inserted into, replaced in, or deleted from the genome using artificially engineered nucleases or genetic scissors [...].


Asunto(s)
Sistemas CRISPR-Cas , Edición Génica , Sistemas CRISPR-Cas/genética , Plantas/genética , Ingeniería Genética , Genoma de Planta
15.
Animals (Basel) ; 13(18)2023 Sep 21.
Artículo en Inglés | MEDLINE | ID: mdl-37760391

RESUMEN

Feline panleukopenia virus (FPV), a member of the species Protoparvovirus carnivoran1, is one of the most fatal pathogens of domestic and wild carnivores. The virus endemically infects domestic carnivores worldwide and its cross-species transmission threatens endangered wild carnivores, including Siberian tigers. In this study, a fatal FPV infection in endangered Siberian tigers was investigated to trace the origin of the virus and elucidate the reason behind FPV's infection of the vaccinated tigers. Our genetic characterization and phylogenetic analysis revealed that the virus detected in the infected tigers, designated as the KTPV-2305 strain, was closely related to FPV strains circulating in Korean cats, suggesting that it might have been transmitted from stray cats wandering around the zoo. Compared with the prototype FPV reference strains, the KTPV-2305 strain carried three distinct amino acid (aa) mutations in the VP2 protein sequence (I101T, I232V, and L562V) in this study. These three mutations are commonly found in most global FPV strains, including Korean strains, indicating that these mutations are common evolutionary characteristics of currently circulating global FPVs. The reason why the vaccinated tigers were infected with FPV was most likely the insufficient protective immunity of the affected tigress or vaccine failure triggered by the interference of maternal-derived antibodies in the affected tiger cubs. These findings suggest that improved vaccination guidelines are urgently needed to save the lives of wild carnivores from this fatal virus.

16.
Sci Total Environ ; 903: 166127, 2023 Dec 10.
Artículo en Inglés | MEDLINE | ID: mdl-37572905

RESUMEN

Carbonate alkalinity is crucial in regulating the pH and buffering capacity of natural water systems. Thus, its accurate measurement is essential to understand various water environments that affect water quality and ecosystem health. However, conventional potentiometric titration has some limitations. It results in inaccurate measurements of carbonate alkalinity when the alkalinity levels are low or when high dissolved organic matter or inorganic ion levels exist. Herein, we propose a novel approach to accurately measure carbonate alkalinity using a total organic carbon (TOC) analyzer. An extensive study comparing the accuracy and reliability of the conventional potentiometric titration method with those of the newly developed TOC method was conducted to develop and verify highly accurate measurements of carbonate alkalinity. The TOC method has several advantages over the conventional potentiometric titration methods, such as its ability to accurately measure carbonate alkalinity in the presence of high dissolved organic matter or inorganic ion levels and its ability to provide rapid and automated measurements with high reproducibility. Because, the limit of detection, limit of quantification, and the variation coefficient of the measurements was 0.016 mM (0.2 mgC/L), 0.050 mM (0.6 mgC/L), and 3.68 % respectively. Thus, the development of a novel TOC method has significant environmental implications as it provides a reliable and accurate means to measure carbonate alkalinity in solutions containing various organic matter types.

17.
Environ Pollut ; 331(Pt 2): 121930, 2023 Aug 15.
Artículo en Inglés | MEDLINE | ID: mdl-37270051

RESUMEN

Benzoic acid (BA), a secondary metabolite released through root exudates, is considered to be the most common inhibitor that leads to plant autotoxicity, even at low concentrations in closed hydroponic systems. In this study, to mitigate BA-driven autotoxicity, the effects of O3 and O3/H2O2 oxidation treatment (O3 concentration: 1, 2, 4, 8 mg L-1, H2O2 concentration: 4, 8 mg L-1) on waste nutrient solution (WNS) were investigated in terms of BA degradation, the rate of germination inhibition (GI), and the rate of root growth inhibition (RI). In the case of O3 treatment, the BA degradation rate improved up to 14.1% as the O3 concentration increased, while alleviation of GI was insignificant (94.6-100%), confirming that a single O3 treatment was unsuitable for mitigating autotoxicity. On the other hand, O3/H2O2 treatment increased BA degradation by up to 24.8%, thereby significantly reducing GI (up to 7.69%) and RI (up to 0.88%). Both the highest BA mineralization rate and phytotoxicity mitigation was observed at BA125 (4-4) (BA mineralization: 16.7%, GI: 12.82%, RI: 11.69%) and BA125 (1-8) (BA mineralization: 17.7%, GI: 7.69%, RI: 0.88%) at each H2O2 concentration. In addition, the operating costs were evaluated by a chemical and electricity cost analysis at the different treatments. As a result, the operating costs of BA125 (4-4) and BA125 (1-8) were calculated to be 0.40 and 0.42 $ L-1 mg-1 of mineralized BA, respectively. After consideration of the mineralization rate, autotoxicity mitigation, and operating cost, BA125 (1-8) was suggested for the optimal treatment condition and our findings would contribute to the alleviation of BA-driven autotoxicity.


Asunto(s)
Ozono , Contaminantes Químicos del Agua , Purificación del Agua , Germinación , Peróxido de Hidrógeno/toxicidad , Lactuca , Semillas , Oxidación-Reducción
18.
Environ Res ; 231(Pt 3): 116266, 2023 08 15.
Artículo en Inglés | MEDLINE | ID: mdl-37257744

RESUMEN

In this study, the feasibility of Mg/Al layered double hydroxides (LDH) functionalized coffee ground waste biochars (LDHMgAl@CWGB) as a potential adsorbent to selectively recover phosphate (PO43-) and nitrate (NO3-) ions in aqueous phases and their consecutive uses as a slow-release fertilizer for stimulating the plant growth were identified. The higher adsorption capacity of PO43- and NO3- ions by LDHMgAl@CWGB (PO43- = 6.98 mgP/g, NO3- = 2.82 mgN/g) compared with pristine coffee ground waste biochars (CWGB; PO43- = 0.19 mgP/g, NO3- = 0.32 mgN/g) was mainly due to the incorporation of Mg/Al mixed oxides and Cl contents. Chemisorption and intra-particle mainly controlled the adsorptive recovery of PO43- and NO3- ions by CWGB and LDHMgAl@CWGB in aqueous phases and their adsorption toward CWGB and LDHMgAl@CWGB proceeded endothermically and spontaneously. The changes in the major adsorption mechanisms of PO43- and NO3- ions from ligand exchange (CWGB) to electrostatic surface complexation and anion-exchange (LDHMgAl@CWGB) supported the conclusion that the alternation of the surface features through Mg/Al LDH functionalization might improve selectivity and adsorption capacity of PO43- and NO3- ions onto CWGB under the co-existence of Cl-, SO42-, and HCO3- ions. Since PO43-- and NO3--loaded LDHMgAl@CWGB exhibited much higher seed germination, root and shoot growth rates of garden cress seeds (Lepidium sativum L) than other liquid and solid matrices, including 5 mgP/L PO43- and 5 mgN/L NO3-, 10 mgP/L PO43- and 10 mgN/L NO3-, and LDHMgAl@CWGB, it can be postulated that PO43-- and NO3--loaded LDHMgAl@CWGB could be practically applicable to the agricultural field as a slow-release fertilizer to facilitate the seed germination, root and shoot growth of the plants.


Asunto(s)
Nitratos , Fosfatos , Fertilizantes , Café , Hidróxidos , Agua , Adsorción , Cinética
19.
Zoonoses Public Health ; 70(5): 451-458, 2023 08.
Artículo en Inglés | MEDLINE | ID: mdl-37005713

RESUMEN

Avian chlamydiosis is an acute or chronic bacterial disease of birds. Chlamydia psittaci is the primary agent of the disease. It is also an important zoonotic pathogen. Chlamydia avium and Chlamydia gallinacea have also been recognized as potential causative agents of the disease. Clinical signs of this disease can vary in severity. Asymptomatic infections of Chlamydia have commonly been reported in various birds worldwide. In this study, we investigated the distribution of Chlamydia species in healthy psittacine birds in Korea. A total of 263 samples (pharyngeal/cloacal swabs and faeces) were collected from psittacine birds of 26 species in five zoos, five parrot farms and seven parrot cafes between 2020 and 2021. Ages of these birds had a wide range (1 month to 30 years). During sample collection, no bird showed any clinical signs indicating diseases such as chlamydiosis. Samples were tested for the presence of Chlamydia spp. using real-time PCR assays. Chlamydia spp. were detected in 168 (63.9%) samples and C. psittaci was detected in 96 (36.5%) samples. However, C. avium and C. gallinacea were not detected. There were no significant differences in the prevalence of asymptomatic infections in birds among three types of housing environments. Regarding ompA genotypes, 87 C. psittaci-positive samples had genotype A based on sequence analysis (n = 28) and genotype-specific real-time PCR (n = 59). Other positive samples were untyped (n = 9). Overall findings showed high prevalence of asymptomatic infections of C. psittaci in psittacine birds in Korea, posing a significant hazard to public health.


Asunto(s)
Enfermedades de las Aves , Chlamydophila psittaci , Loros , Psitacosis , Animales , Prevalencia , Infecciones Asintomáticas , Enfermedades de las Aves/epidemiología , Enfermedades de las Aves/microbiología , Psitacosis/epidemiología , Psitacosis/veterinaria , Psitacosis/microbiología , República de Corea/epidemiología
20.
J Immunother Cancer ; 11(4)2023 04.
Artículo en Inglés | MEDLINE | ID: mdl-37055217

RESUMEN

Immunotherapy has revolutionized the treatment of cancer. In particular, immune checkpoint blockade, bispecific antibodies, and adoptive T-cell transfer have yielded unprecedented clinical results in hematological malignancies and solid cancers. While T cell-based immunotherapies have multiple mechanisms of action, their ultimate goal is achieving apoptosis of cancer cells. Unsurprisingly, apoptosis evasion is a key feature of cancer biology. Therefore, enhancing cancer cells' sensitivity to apoptosis represents a key strategy to improve clinical outcomes in cancer immunotherapy. Indeed, cancer cells are characterized by several intrinsic mechanisms to resist apoptosis, in addition to features to promote apoptosis in T cells and evade therapy. However, apoptosis is double-faced: when it occurs in T cells, it represents a critical mechanism of failure for immunotherapies. This review will summarize the recent efforts to enhance T cell-based immunotherapies by increasing apoptosis susceptibility in cancer cells and discuss the role of apoptosis in modulating the survival of cytotoxic T lymphocytes in the tumor microenvironment and potential strategies to overcome this issue.


Asunto(s)
Inmunoterapia , Neoplasias , Humanos , Inmunoterapia/métodos , Neoplasias/terapia , Inmunoterapia Adoptiva/métodos , Linfocitos T Citotóxicos , Apoptosis , Microambiente Tumoral
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