Cell Volume, Deformability & Dimensionability

细胞体积、变形能力

• 批准号: 8898899
• 负责人: DAVID A WEITZ
• 金额: $ 48.1万
• 依托单位: HARVARD SCHOOL OF PUBLIC HEALTH
• 依托单位国家: 美国
• 资助国家: 美国
• 起止时间: 至
• 项目状态: 未结题
• 来源: https://reporter.nih.gov/project-details/8898899
• 关键词: 3-Dimensional; Asthma; Behavior; Biological; Biology; Bronchial Spasm; CREB1 gene; Candidate Disease Gene; Cell Volumes; Cells; D Cells; Discipline; Disease; Epithelial Cells; Genomics; Glass; Health; Human; Image; Imaging technology; Laboratories; Lung; Lung diseases; MDCK cell; Mechanics; Methodology; Methods; Molecular; Pathogenesis; Phase; Phenotype; Physics; Process; Regulation; Role; Signal Pathway; Stress; System; Wound Healing; activating transcription factor 3; airway epithelium; asthmatic; bronchial epithelium; cell motility; lung injury; lung repair; migration; monolayer; new technology; novel; programs; response; transmission process

PROJECT ABSTRACT In this revised application we propose to bridge cutting-edge topics in biology and physics in order to create a new physical picture of collective cellular migration in lung health and disease. The projects and cores of this program focus upon a common central hypothesis: In collective behaviors of epithelial cells in the lung, di- verse physical factors and their multiple biological effects are brought together by the concept of the glass transition as described on a unifying jamming phase diagram. Each project director is a leader in his or her respective discipline. Project 1 (Weitz) will investigate basic physics at the level of the single cell in isolation (0-D), in single-file migration (1-D), and in transition to 2-D behavior. This project will emphasize the unifying role of cell volume regulation in mechanical determinants of cell jamming. Project 2 (Fredberg) will investigate basic physics of jamming in monolayers (2-D) and cell clusters (3-D). Project 3 (Drazen) will investigate the role of jamming in the bronchial epithelium as a basic mechanisms of asthma pathogenesis. Core A (Butler, Zaman, Krishnan) will support and develop novel technologies for imaging of physical forces. Core B (Weiss) will seek common molecular network motifs that span projects and characterize regions of the jamming phase diagram. Core C (Fredberg) is administrative. Together, the interdisciplinary projects and cores of this pro- gram project combine physics and biology at a level that is realized only rarely. The projects are unified by a central hypothesis that is radical, mechanistic and testable, and that has the potential to impact basic under- standing of lung injury and repair.

项目摘要 在此修订的应用中，我们建议桥接生物学和物理学的尖端主题，以创建一个 肺部健康和疾病中集体细胞迁移的新物理图片。这些项目和核心 计划的重点是一个共同的中心假设：在肺中上皮细胞的集体行为中 玻璃的概念将诗歌的物理因素及其多种生物学作用汇总在一起 如在统一干扰相图上所述的过渡。每个项目主管都是他或她的领导者 各自的学科。项目1（Weitz）将分别研究单个细胞水平的基本物理学 （0-D），单文件迁移（1-D），并过渡到2-D行为。该项目将强调统一 细胞体积调节在细胞干扰机械决定因素中的作用。项目2（弗雷德伯格）将调查 单层（2-D）和细胞簇（3-D）中堵塞的基本物理学。项目3（Drazen）将调查 堵塞在支气管上皮中的作用是哮喘发病机理的基本机制。核心A（巴特勒， Zaman，Krishnan）将支持和开发新颖的技术来成像物理力量。核心（Weiss） 将寻求跨越项目并表征干扰阶段区域的常见分子网络图案 图表。 Core C（Fredberg）是管理的。共同的跨学科项目和核心 克项目将物理学和生物学结合在一起，仅实现的水平很少。这些项目由 中心假设是根本，机械和可检验的，并且有可能影响基本不足的基本 肺部受伤和修复的站立。