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Principios de la auto-organización del embrión de mamífero
Meng Zhu1, Magdalena Zernicka-Goetz2
1Department of Physiology, Development and Neuroscience, University of Cambridge, Downing Street, Cambridge CB2 3EG, UK; Present address: Department of Genetics, Blavatnik Institute, Harvard Medical School, Boston, MA 02115, USA.
Cell
|December 11, 2020
Resumen
El desarrollo embrionario de los mamíferos se basa en la autoorganización para la plasticidad. Las restricciones geométricas, la retroalimentación mecánica y bioquímica y la diversidad celular aseguran el patrón correcto a pesar de las perturbaciones.
Área de la Ciencia:
- Biología del desarrollo
- Embriología
- Biología celular
Sus antecedentes:
- La embriogénesis temprana es un proceso biológico fundamental caracterizado por la autoorganización.
- Los embriones de mamíferos exhiben una notable plasticidad en el desarrollo, lo que permite la formación de patrones a pesar de las perturbaciones experimentales.
- Comprender los mecanismos del desarrollo regulador en los primeros embriones de mamíferos es un desafío científico de larga data.
Objetivo del estudio:
- Revisar y sintetizar los conocimientos actuales sobre los principios de autoorganización que rigen el desarrollo embrionario temprano de los mamíferos.
- Aclarar los factores que contribuyen a la capacidad reguladora de los embriones de mamíferos.
- Resaltar la interacción de varios factores que aseguran la plasticidad del desarrollo.
Principales métodos:
- Este es un artículo de revisión, que resume la investigación existente y los marcos teóricos.
- Análisis de la literatura establecida sobre la embriogénesis temprana y la biología del desarrollo.
- Síntesis de hallazgos relacionados con la autoorganización, las restricciones geométricas, la retroalimentación mecánica y bioquímica y la heterogeneidad celular.
Principales resultados:
- La autoorganización es un principio clave que subyace a la embriogénesis temprana de los mamíferos.
- La plasticidad del desarrollo en embriones de mamíferos se logra a través de una combinación de factores.
- Las restricciones geométricas juegan un papel crucial en la orientación del desarrollo embrionario.
- Los mecanismos de retroalimentación entre las fuerzas mecánicas y las señales bioquímicas son esenciales.
- La heterogeneidad celular contribuye significativamente a la robustez del desarrollo.
Conclusiones:
- La naturaleza reguladora de los primeros embriones de mamíferos se explica por los principios de autoorganización.
- Una combinación de restricciones geométricas, retroalimentación mecánico-bioquímica y heterogeneidad celular asegura la plasticidad del desarrollo.
- Estos mecanismos integrados permiten la formación robusta de embriones con el patrón correcto.
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