The systems developmental biology of zebrafish body elongation

斑马鱼身体伸长的系统发育生物学

基本信息

批准号：
10806332
负责人：
SCOTT A HOLLEY
金额：
$ 3.25万
依托单位：
YALE UNIVERSITY
依托单位国家：
美国
项目类别：
财政年份：
2023
资助国家：
美国
起止时间：
2023-01-01 至 2027-12-31
项目状态：
未结题

项目摘要

This research program focuses on the systems developmental biology, biophysics and biomechanics of early spinal column development. The research program utilizes zebrafish as model for understanding the mechanisms of human development and causes of birth defects such as scoliosis and spina bifida. The experimental approach is driven by the idea that quantitative in vivo analysis will lead to fundamental insights into the emergence of biological organization from the collective interaction of its constituent parts. The research program combines genetics, embryology, in vivo biophysics, live imaging and systems level data analysis and computational modeling to study pattern formation and morphogenesis. The proposed research program will address a number of questions regarding biological order and the reproducibility of embryonic development. The program will follow-up on the lab’s recent finding that a dynamically stable pattern of cell state transitions underlies the reproducibility of development to understand the mechanisms maintaining dynamic stability during zebrafish body elongation. The research program will also examine the mechanism of mechanical information regulating the flux of cells through a developmental trajectory. The program will address how tissue-tissue interactions constrain cell behavior during body elongation. At the molecular and cellular level, the program will utilize newly developed methods for in vivo single molecule biophysics to study cell adhesion protein dynamics and their relation to cell state transitions and cell morphology. Overall, this is multi-scale research program that considers the roles of molecules, cells and tissues in the genesis of order in the developing embryo.

该研究项目侧重于系统发育生物学、生物物理学和该研究项目利用斑马鱼作为早期脊柱发育的生物力学。了解人类发育机制和出生缺陷原因的模型例如脊柱侧弯和脊柱裂。实验方法的驱动因素是：体内定量分析将带来对生物技术出现的基本见解研究计划的组织来自其组成部分的集体相互作用。结合了遗传学、胚胎学、体内生物物理学、实时成像和系统级数据分析和计算模型来研究模式形成和形态发生。研究计划将解决有关生物秩序和该计划将跟进实验室的最新发现。细胞状态转换的动态稳定模式是重复性的基础发展以了解维持斑马鱼身体动态稳定性的机制该研究计划还将研究机械信息的机制。该计划将解决如何通过发育轨迹调节细胞通量的问题。组织与组织的相互作用在分子和结构上限制了身体伸长过程中的细胞行为。细胞水平上，该计划将利用新开发的方法进行体内单分子生物物理学研究细胞粘附蛋白动力学及其与细胞状态转变的关系总的来说，这是一个多尺度的研究项目，考虑了细胞形态的作用。分子、细胞和组织在胚胎发育过程中的有序发生。