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Recolector de Ciencia Abierta, RECOLECTA
Doctoral thesis . 2023
License: CC BY NC ND
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DIGITAL.CSIC
Doctoral thesis . 2022 . Peer-reviewed
Data sources: DIGITAL.CSIC
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The role of Prrx1 in mouse development and vascular biology

Authors: Garcia-Asencio, Francisco;

The role of Prrx1 in mouse development and vascular biology

Abstract

La transición epitelio mesénquima (EMT) confiere propiedades migratorias e invasivas a las células, y es crucial para la formación de muchos tejidos y órganos durante el desarrollo embrionario. Este programa celular se acciona por la activación de factores de transcripción (EMT-TFs) que pertenecen a distintas familias de genes, incluyendo Snail, Twist y Prrx. Durante el desarrollo embrionario, se expresan en áreas de EMT que producen diferentes derivados del mesodermo y su estudio a lo largo de los años ha mostrado que son importantes para el desarrollo de las extremidades y del esqueleto craneofacial. Los EMT-TFs se expresan en territorios distintos o solapantes, llevando a cabo funciones específicas o cooperativas. En el adulto, la reactivación de la EMT contribuye a la progresión de enfermedades como la fibrosis y el cáncer. El gen Prrx1, que se fue identificado como EMTTF en nuestro laboratorio, produce tres isoformas por procesamiento alternativo de los transcritos, cuya función no está bien caracterizada. Snail1 es un EMT-TF clásico, que está muy alto en la jerarquía temporal de la EMT durante el desarrollo embrionario y durante la progresión del cáncer, y su expresión siempre precede a la de Prrx1. Por otro lado, Twist1 es otro EMT-TF clásico cuyo patrón de expresión es muy similar al de Prrx1 en desarrollo embrionario y cáncer. Hemos generado y caracterizado diferentes líneas de ratones transgénicos que nos han permitido estudiar la función de estos EMT-TFs, incluyendo las isoformas de Prrx1, y sus interacciones génicas durante el desarrollo embrionario de ratón. Hemos descubierto interacciones entre Prrx1 y Snail1 en la formación de los derivados craneofaciales y entre Prrx1 y Twist1 en la morfogénesis de los dedos. Además, hemos observado que Prrx1 se expresa específicamente en las células murales durante el desarrollo embrionario y en ratones adultos y hemos observado que Prrx1 es necesario para la integridad de la vasculatura de la retina y de los pulmones. También hemos descubierto que Prrx1 es necesario para la neoangiogenesis, evaluada mediante ensayos in vivo. Análisis transcriptómico a nivel del genoma completo indican que a nivel molecular Prrx1 está implicado en la regulación de la matriz extracelular y de la respuesta inmune en los pericitos.

Programa de Doctorado en Neurociencias por la Universidad Miguel Hernández de Elche (IN-CSIC).

Peer reviewed

Country
Spain
Related Organizations
Keywords

Genética del desarrollo, Embriología, CDU::6 - Ciencias aplicadas::61 - Medicina::616 - Patología. Medicina clínica. Oncología::616.8 - Neurología. Neuropatología. Sistema nervioso

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selected citations
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This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
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