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Administrative supplement for the purchase of a confocal microscope

购买共聚焦显微镜的行政补充

基本信息

批准号：
10797113
负责人：
Panagiotis Mistriotis
金额：
$ 25万
依托单位：
AUBURN UNIVERSITY AT AUBURN
依托单位国家：
美国
项目类别：
财政年份：
2022
资助国家：
美国
起止时间：
2022-08-10 至 2027-06-30
项目状态：
未结题

项目摘要

Contact PD/PI: Mistriotis, Panagiotis Summary: Cell migration is a fundamental cellular phenomenon that plays a pivotal role in (patho)physiological events, including organ development, tissue regeneration and cancer metastasis. Our long-term goal is to achieve a comprehensive understanding of the mechanisms of cell migration in order to develop novel therapeutic tools and strategies to prevent the initiation and progression of diseases, including cardiovascular pathologies, aging, and cancer. Building on the PI's postdoctoral work, the lab explores how the physical cues of the local microenvironment (e.g., confinement, viscoelasticity, stiffness, pressure and shear stress) convert into biochemical signals to influence the migratory behavior of cells. Over the next five years, we will employ state-of-the-art microfabricated devices, materials, optogenetic tools, single-cell transcriptomics and computational simulations to elucidate the effects of pressure forces on cell migration and viability. The scientific premise of this application is based on prior studies showing that cells experience elevated pressure forces during various stages of migration and invasion, including extra/intravasation and interstitial migration. Although the widely held view is that cells can adapt to mechanical cues, an open and unaddressed question is how elevated pressure affects cell behavior in diverse, yet physiologically relevant, microenvironments. To answer this question, we will investigate the interplay between pressure forces and different microenvironmental cues (physical or biochemical) in the regulation of cell migration. We will also assess whether long-term cell exposure to high pressures alters the sensitivity of cell motility to physical cues. Last but not least, we will dissect the relative roles and potential crosstalk between confinement and pressure in cell death regulation. Taken together, the proposed studies, which are supported by highly encouraging preliminary results, will delineate the underlying mechanisms regulating cell behavior in physiological environments and generate novel conceptual information that will facilitate the identification of new therapeutic targets aimed at promoting or preventing cell motility in vivo. Project Summary/Abstract Page 6

联系PD/PI：Mistriotis，Panagiotis 摘要：细胞迁移是一种基本的细胞现象，在(病理)生理过程中起着关键作用。事件，包括器官发育、组织再生和癌症转移。我们的长期目标是全面了解细胞迁移机制，以开发新的预防包括心血管疾病在内的疾病发生和发展的治疗工具和战略病理、衰老和癌症。在PI博士后工作的基础上，该实验室探索了身体线索是如何局部微环境(例如，约束、粘弹性、刚度、压力和剪应力)的换算转化为生化信号来影响细胞的迁移行为。在未来五年，我们将聘用最先进的微细加工设备、材料、光遗传工具、单细胞转录和计算机模拟以阐明压力对细胞迁移和活性的影响。科学的这一应用的前提是基于先前的研究，该研究表明细胞承受较高的压力在迁移和侵袭的不同阶段，包括血管外/血管内和间质迁移。虽然普遍的观点是细胞可以适应机械提示，一个悬而未决的问题是如何适应压力升高会影响细胞在不同的微环境中的行为，但在生理上是相关的。回答这个问题，我们将研究压力和不同微环境线索之间的相互作用。 (物理的或生化的)调节细胞迁移。我们还将评估长期接触细胞是否高压改变了细胞运动对物理信号的敏感性。最后但同样重要的是，我们将剖析限制和压力在细胞死亡调控中的相对作用和潜在的串扰。加在一起，拟议的研究得到了令人鼓舞的初步结果的支持，将勾勒出调节生理环境中细胞行为的潜在机制并产生新的概念有助于确定旨在促进或预防细胞的新的治疗靶点的信息活体内运动性。项目摘要/摘要第6页