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2.
Front Public Health ; 11: 1195751, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37457264

RESUMEN

Introduction: Vaccine hesitancy is a global health threat undermining control of many vaccine-preventable diseases. Patient-level education has largely been ineffective in reducing vaccine concerns and increasing vaccine uptake. We built and evaluated a personalized vaccine risk communication website called LetsTalkShots in English, Spanish and French (Canadian) for vaccines across the lifespan. LetsTalkShots tailors lived experiences, credible sources and informational animations to disseminate the right message from the right messenger to the right person, applying a broad range of behavioral theories. Methods: We used mixed-methods research to test our animation and some aspects of credible sources and personal narratives. We conducted 67 discussion groups (n = 325 persons), stratified by race/ethnicity (African American, Hispanic, and White people) and population (e.g., parents, pregnant women, adolescents, younger adults, and older adults). Using a large Ipsos survey among English-speaking respondents (n = 2,272), we tested animations aligned with vaccine concerns and specific to population (e.g., parents of children, parents of adolescents, younger adults, older adults). Results: Discussion groups provided robust feedback specific to each animation as well as areas for improvements across animations. Most respondents indicated that the information presented was interesting (85.5%), clear (96.0%), helpful (87.0%), and trustworthy (82.2%). Discussion: Tailored vaccine risk communication can assist decision makers as they consider vaccination for themselves, their families, and their communities. LetsTalkShots presents a model for personalized communication in other areas of medicine and public health.


Asunto(s)
Comunicación , Vacunación , Vacunas , Adolescente , Anciano , Niño , Femenino , Humanos , Embarazo , Negro o Afroamericano , Canadá , Medicina de Precisión , Vacilación a la Vacunación , Riesgo , Salud Pública , Promoción de la Salud , Educación en Salud/métodos , Hispánicos o Latinos , Blanco , Adulto Joven , Padres
3.
Mol Cancer Res ; 19(5): 784-798, 2021 05.
Artículo en Inglés | MEDLINE | ID: mdl-33500360

RESUMEN

Several master transcription factors (TF) can activate the epithelial-to-mesenchymal transition (EMT). However, their individual and combinatorial contributions to EMT in breast cancer are not defined. We show that overexpression of EMT-TFs individually in epithelial cells upregulated endogenous SNAI2, ZEB1/2, TCF4, and TWIST1/2 as a result of positive feedback mediated in part by suppression of their negative regulator miRNAs miR200s/203/205. We identified TCF4 as a potential new target of miR200s. Expression of ZEB1/2 strongly correlated with the mesenchymal phenotype in breast cancer cells, with the CD24-/CD44+ stemness profile, and with lower expression of core epithelial genes in human breast tumors. Knockdown of EMT-TFs identified the key role of ZEB1 and its functional cooperation with other EMT-TFs in the maintenance of the mesenchymal state. Inducible ZEB1+2 knockdown in xenograft models inhibited pulmonary metastasis, emphasizing their critical role in dissemination from primary site and in extravasation. However, ZEB1+2 depletion one-week after intravenous injection did not inhibit lung colonization, suggesting that ZEB1/2 and EMT are not essential for macrometastatic outgrowth. These results provide strong evidence that EMT is orchestrated by coordinated expression of several EMT-TFs and establish ZEB1 as a key master regulator of EMT and metastasis in breast cancer. IMPLICATIONS: The EMT program is orchestrated by coordinated expression of multiple EMT transcription factors, whereas ZEB1 integrates the EMT master regulatory network and plays the major role in promoting EMT and metastasis.


Asunto(s)
Neoplasias de la Mama/metabolismo , Neoplasias de la Mama/patología , Factores de Transcripción/metabolismo , Animales , Neoplasias de la Mama/genética , Técnicas de Cultivo de Célula , Línea Celular Tumoral , Proliferación Celular/fisiología , Transición Epitelial-Mesenquimal , Femenino , Xenoinjertos , Humanos , Masculino , Ratones , Ratones Endogámicos NOD , MicroARNs/genética , MicroARNs/metabolismo , Metástasis de la Neoplasia , Factores de Transcripción/genética , Caja Homeótica 2 de Unión a E-Box con Dedos de Zinc/genética , Caja Homeótica 2 de Unión a E-Box con Dedos de Zinc/metabolismo , Homeobox 1 de Unión a la E-Box con Dedos de Zinc/genética , Homeobox 1 de Unión a la E-Box con Dedos de Zinc/metabolismo
4.
Transpl Int ; 33(8): 895-901, 2020 08.
Artículo en Inglés | MEDLINE | ID: mdl-32299135

RESUMEN

The purpose of this study was to examine the influence of extracorporeal membrane oxygenation (ECMO) as a bridge to reoperative lung transplantation (LT) on outcomes and survival. A total of 1960 LT recipients transplanted a second time between 2005 and 2017 were analyzed using the United Network for Organ Sharing (UNOS) Organ Procurement and Transplantation Network (OPTN). Of these recipients, 99 needed ECMO as a bridge to reoperative LT. Mean age was 50 ± 14 years, 47% were females, and the group with ECMO was younger [42 (30-59) vs. 55 (40-62) years]. In both univariate and multivariable analyses (adjusting for age and gender), the ECMO group had greater incidence of prolonged ventilation >48 h (83% vs. 40%, P < 0.001) and in-hospital dialysis (27% vs. 7%, P < 0.001). There were no differences in incidence of acute rejection (15% vs. 11%, P = 0.205), airway dehiscence (4% vs. 2%, P = 0.083), stroke (3% vs. 2%, P = 0.731), or reintubation (20% vs. 20%, P = 0.998). Kaplan-Meier survival analysis showed the ECMO group had reduced 1-year survival (66.6% vs. 83.0%, P < 0.001). After covariate adjustment, the ECMO group only had increased risk for 1-year mortality in the 2005-2011 era (HR = 2.57, 95% CI = 1.45-4.57, P = 0.001). For patients who require reoperative LT, bridging with ECMO was historically a significant predictor of poor outcome, but may be improving in recent years.


Asunto(s)
Oxigenación por Membrana Extracorpórea , Trasplante de Pulmón , Adulto , Femenino , Humanos , Estimación de Kaplan-Meier , Persona de Mediana Edad , Estudios Retrospectivos , Resultado del Tratamiento , Estados Unidos
5.
Cancer Res ; 75(2): 344-55, 2015 Jan 15.
Artículo en Inglés | MEDLINE | ID: mdl-25421577

RESUMEN

KAP1 (TRIM28) is a transcriptional regulator in embryonic development that controls stem cell self-renewal, chromatin organization, and the DNA damage response, acting as an essential corepressor for KRAB family zinc finger proteins (KRAB-ZNF). To gain insight into the function of this large gene family, we developed an antibody that recognizes the conserved zinc fingers linker region (ZnFL) in multiple KRAB-ZNF. Here, we report that the expression of many KRAB-ZNF along with active SUMOlyated KAP1 is elevated widely in human breast cancers. KAP1 silencing in breast cancer cells reduced proliferation and inhibited the growth and metastasis of tumor xenografts. Conversely, KAP1 overexpression stimulated cell proliferation and tumor growth. In cells where KAP1 was silenced, we identified multiple downregulated genes linked to tumor progression and metastasis, including EREG/epiregulin, PTGS2/COX2, MMP1, MMP2, and CD44, along with downregulation of multiple KRAB-ZNF proteins. KAP1-dependent stabilization of KRAB-ZNF required direct interactions with KAP1. Together, our results show that KAP1-mediated stimulation of multiple KRAB-ZNF contributes to the growth and metastasis of breast cancer.


Asunto(s)
Neoplasias de la Mama/metabolismo , Neoplasias de la Mama/patología , Proteínas Represoras/biosíntesis , Secuencia de Aminoácidos , Animales , Anticuerpos/inmunología , Neoplasias de la Mama/genética , Procesos de Crecimiento Celular/fisiología , Línea Celular Tumoral , Pollos , Progresión de la Enfermedad , Femenino , Técnicas de Silenciamiento del Gen , Xenoinjertos , Humanos , Ratones , Ratones Endogámicos NOD , Datos de Secuencia Molecular , Metástasis de la Neoplasia , Complejo de la Endopetidasa Proteasomal/metabolismo , ARN Mensajero/biosíntesis , ARN Mensajero/genética , Proteínas Represoras/genética , Proteínas Represoras/inmunología , Proteínas Represoras/metabolismo , Sumoilación , Proteína 28 que Contiene Motivos Tripartito , Regulación hacia Arriba , Dedos de Zinc
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