Video Experimental Relacionado
Updated: Feb 2, 2026
08:00
Imaging and 3D Reconstruction of Cerebrovascular Structures in Embryonic Zebrafish
Published on: April 22, 2014
15.4K
Un atlas espaciotemporal del desarrollo cerebrovascular en peces cebra
Xiaoyu Li1, Shanshan Ke1, Chengchao Wu1
1Zhanjiang Key Laboratory of Zebrafish Model for Development and Disease, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China.
Nature communications
|January 31, 2026
Resumen
Este estudio mapea el desarrollo de la vasculatura cerebral de los peces cebra, revelando un cambio hacia el crecimiento de vasos sanguíneos internos y la maduración de la barrera hematoencefálica. La identificación de tipos de células endoteliales y genes clave proporciona información sobre el patrón y la función vascular cerebral.
Área de la Ciencia:
- Neurociencia
- Biología del Desarrollo
- Biología Vascular
Sus antecedentes:
- El desarrollo cerebrovascular es crucial para la función cerebral pero poco comprendido.
- La integración de datos multiescala (molecular, celular, arquitectónica) en la vasculatura cerebral es un desafío.
Objetivo del estudio:
- Crear un atlas multidimensional del desarrollo del endotelio cerebral de los peces cebra desde los 3 hasta los 11 días posteriores a la fertilización.
- Conectar los perfiles moleculares con la arquitectura vascular y comprender la dinámica del desarrollo.
Principales métodos:
- Combinación de secuenciación in situ, transcriptómica de célula única y reconstrucción vascular 3D.
- Realización de análisis cuantitativo 3D y transcriptómica espacial.
- Realización de ensayos funcionales y estudios de perturbación genética.
Principales resultados:
- Se identificó un cambio en el desarrollo desde la vascularización lateral hacia la angiogénesis intraparenquimatosa y la maduración de la barrera hematoencefálica.
- Se descubrieron 6 subtipos de endotelio con firmas de mamíferos conservadas, incluidas las células endoteliales capilares (CapECs).
- Se mostró la acumulación de CapEC específica de etapa y se identificaron genes clave (slc16a1a, zgc:158423, cldc1) cruciales para el patrón vascular y la integridad de la barrera hematoencefálica.
Conclusiones:
- Este atlas ofrece una perspectiva evolutiva del desarrollo cerebrovascular.
- Integra datos moleculares y arquitectónicos, proporcionando información sobre la dinámica del desarrollo.
- Los hallazgos resaltan la importancia de genes específicos enriquecidos en CapEC para mantener la salud vascular cerebral.
Videos de Conceptos Relacionados
01:43Sustainable Development
15.1K
As the human population continues to grow and use resources, we must be mindful of our planet’s natural limits. Sustainable development provides a pathway to maintain and improve human life now while also ensuring that future generations will have the resources that they need. The long-term success of sustainability efforts rests on understanding the interplay between human actions and ecological systems.
15.1K
01:15Development of the Lymphatic System
2.1K
The development of lymphatic tissues and vessels in embryonic life begins around the fifth week. These structures originate from the mesoderm layer, with lymph sacs emerging from developing veins.
The first lymph sacs to form are the paired jugular lymph sacs located at the junction of the internal jugular and subclavian veins. From these sacs, lymphatic capillary plexuses extend to the thorax, upper limbs, neck, and head, eventually forming lymphatic vessels. Each jugular lymph sac maintains a...
The first lymph sacs to form are the paired jugular lymph sacs located at the junction of the internal jugular and subclavian veins. From these sacs, lymphatic capillary plexuses extend to the thorax, upper limbs, neck, and head, eventually forming lymphatic vessels. Each jugular lymph sac maintains a...
2.1K
01:22Language Development
913
Children master language quickly and with relative ease, supported by both biological predisposition and reinforcement. B. F. Skinner (1957) proposed that language is learned through reinforcement, while Noam Chomsky (1965) argued that language acquisition mechanisms are biologically determined.
The critical period for language acquisition suggests that the ability to acquire language is at its peak early in life. As people age, this proficiency decreases. Language development begins very...
The critical period for language acquisition suggests that the ability to acquire language is at its peak early in life. As people age, this proficiency decreases. Language development begins very...
913
01:22Development of Immunocompetence
886
The initiation of cell-mediated immunity can be observed as early as the third month of fetal growth, with active antibody-mediated immunity following approximately one month later.
The initial cells that migrate from the fetal thymus settle within the skin and epithelial tissues lining the mouth, digestive tract, and in females, the uterus and vagina. These cells, including skin-based dendritic cells, serve as antigen-presenting cells, playing a key role in T cell activation.
Subsequent T...
The initial cells that migrate from the fetal thymus settle within the skin and epithelial tissues lining the mouth, digestive tract, and in females, the uterus and vagina. These cells, including skin-based dendritic cells, serve as antigen-presenting cells, playing a key role in T cell activation.
Subsequent T...
886
01:27Development of the Heart
2.5K
The development of the human heart, a crucial organ, commences from the mesoderm on the 18th or 19th day after fertilization. This process initiates in the cardiogenic area, a group of mesodermal cells at the embryo's head end, which evolves into elongated strands known as cardiogenic cords. These cords undergo a transformation to form hollow-centered endocardial tubes.
As the embryo undergoes lateral folding, these paired tubes approach each other, merging into a single primitive heart...
As the embryo undergoes lateral folding, these paired tubes approach each other, merging into a single primitive heart...
2.5K
01:58Fruit Development, Structure, and Function
25.2K
Fruits form from a mature flower ovary. As seeds develop from the ovules contained within, the ovary wall undergoes a series of complex changes to form fruit. In some fruits, such as soybeans, the ovary wall dries; in other fruits, such as grapes, it remains fleshy. In some cases, organs other than the ovary contribute to fruit formation; such fruits are called accessory fruits.
25.2K