自传的波浪驱动了骨的形态发生 in vivo
Yiteng Dang1,2,3, Johanna Lattner1, Adrian A Lahola-Chomiak1
1Max Planck Institute for Molecular Cell Biology and Genetics, Dresden, Germany.
Nature communications
|May 9, 2025
概括
细胞分化和组织度之间的机械反驱动胚胎头骨扩张. 这一过程控制骨大小和细胞运动,而不依赖细胞迁移,揭示了对组织形态发生的新见解.
科学领域:
- 发育生物学是发展生物学.
- 生物物理学的生物物理.
- 细胞生物学 细胞生物学
背景情况:
- 细胞运动,通常是由迁移驱动的,对于组织形态发生至关重要.
- 然而,迁移可能无法解释细胞在狭窄空间中的移动,例如胚胎头骨发育期间的移动.
- 现有的模型无法完全解释这种环境中的细胞运动.
研究的目的:
- 研究胚胎头骨中驱动细胞运动和骨扩张的机制.
- 为了确定细胞命运和组织度之间的机械反的作用.
- 在有机体发生过程中确定协调细胞运动的替代机制.
主要方法:
- 胚胎头骨发育的体外成像. 胚胎头骨发育的体外成像.
- 生物物理建模模拟机械反.
- 扰动实验改变细胞和机械特性.
主要成果:
- 细胞命运和硬度之间的机械反驱动胚胎骨扩张并控制骨大小.
- 这种反会传播分化波,产生原梯度.
- 原渐变足以解释骨质母细胞的运动模式.
结论:
- 胚胎头骨中的协调细胞运动可以从机械反中出现,独立于细胞迁移.
- 这种机械化学合在复杂,异质的环境中提供了指导细胞运动的机制.
- 这些发现为组织在发育过程中如何调节形状和大小提供了新的视角.
更多相关视频
06:40Visualization of Chondrocyte Intercalation and Directional Proliferation via Zebrabow Clonal Cell Analysis in the Embryonic Meckel’s Cartilage
Published on: October 21, 2015
9.0K
12:59Three and Four-Dimensional Visualization and Analysis Approaches to Study Vertebrate Axial Elongation and Segmentation
Published on: February 28, 2021
3.6K
相关概念视频
01:22Sutures of the Skull
5.9K
The human skull is composed of several bones that come together to protect the brain and support the structures of the face. The junctions where these bones meet are called sutures.
Sutures are immobile joints between adjacent bones of the skull. The narrow gap between the bones is filled with dense, fibrous connective tissue that unites the bones. The long sutures located between the skull bones are not straight but instead follow irregular, tightly twisting paths. These twisting lines tightly...
Sutures are immobile joints between adjacent bones of the skull. The narrow gap between the bones is filled with dense, fibrous connective tissue that unites the bones. The long sutures located between the skull bones are not straight but instead follow irregular, tightly twisting paths. These twisting lines tightly...
5.9K
01:40Bone Remodeling
38.0K
Bone remodeling is a continuous and balanced process of bone resorption by osteoclasts and bone formation by osteoblasts. In adults, it helps maintain bone mass and calcium homeostasis. While mechanical stress can stimulate turnover as part of the normal maintenance and reparative process, several hormones also regulate bone remodeling.
38.0K