Self-Assembling Peptides for Tissue Engineering

用于组织工程的自组装肽

• 批准号: 7246697
• 负责人: ALAN J. GRODZINSKY
• 金额: $ 5.77万
• 依托单位: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
• 依托单位国家: 美国
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-08-01 至 2010-07-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/7246697
• 关键词: animal tissue; bioengineering /biomedical engineering; biophysics; cartilage; computer simulation; laboratory mouse; liver; molecular assembly /self assembly; myocardium; protein sequence; tissue engineering; tissue support frame

DESCRIPTION (provided by applicant): A fundamental challenge in tissue engineering is the nature and design of an appropriate 3D scaffold. We propose to use self-assembling peptides to engineer the 3D environment of cells with biologic functionality that can be modified and controlled, based on the basic biophysics of the material, which can be tailored for specific cell types. We employ a Partnership that brings together investigators in biophysics, bioengineering, cell biology, molecular biology, physiology, chemistry, and imaging. Team members are specialists in Electrical Engineering (Grodzinsky, PI), Mechanical Engineering (Kamm), Chemical Engineering (Griffith), Biological Sciences (Zhang, Semino, Lee-BWH), Chemistry (Klibanov) and Clinical Science (Lee, Frisbie-CSU). The use of self-assembling peptides in tissue engineering potentially enables the control of cellular adhesion, biomechanical properties, growth factor presentation and/or release, and vascularization. A fundamental theme of this Partnership is that no single tissue engineering approach is suitable for the diverse structure of all tissues. However, our central hypothesis is that by providing a physiologically appropriate, molecularly specific environment that can be modified by design, we can utilize the "core technologies" of the Partnership to improve the approach for a given tissue. This Partnership brings together expertise in several specific tissues, allowing us to interact in ways that traditional individual grants and programs do not provide. Our Specific Aims are (1) Design, & functionalization of peptide sequence of self-assembling peptides for 3D tissue engineering; (2) To explore the basic biophysics of the self-assembling peptide environment using state-of-the-art computational modeling and biophysical measurements; and (3) To explore the role of the self-assembling peptide environment in three major target tissues: myocardium, cartilage, and liver. The lead institution of the Partnership is MIT, with partners from BWH and CSU.

描述（由申请人提供）：组织工程的一个基本挑战是适当的3D支架的性质和设计。我们建议使用自组装肽来设计具有生物功能的细胞的3D环境，这些环境可以根据材料的基本生物物理学进行修改和控制，可以针对特定的细胞类型进行定制。我们采用合作伙伴关系，将生物物理学、生物工程、细胞生物学、分子生物学、生理学、化学和成像方面的研究人员聚集在一起。团队成员是电气工程（Grodzinsky， PI）、机械工程（Kamm）、化学工程（Griffith）、生物科学（Zhang, Semino, Lee- bwh）、化学（Klibanov）和临床科学（Lee, Frisbie-CSU）方面的专家。在组织工程中使用自组装肽有可能控制细胞粘附、生物力学特性、生长因子呈现和/或释放以及血管化。该合作伙伴关系的一个基本主题是，没有一种组织工程方法适用于所有组织的多种结构。然而，我们的核心假设是，通过提供一个生理上适当的、分子上特定的环境，可以通过设计进行修改，我们可以利用合作伙伴关系的“核心技术”来改进特定组织的方法。这一伙伴关系汇集了几个特定组织的专业知识，使我们能够以传统的个人赠款和项目无法提供的方式进行互动。我们的具体目标是：(1)设计和功能化用于三维组织工程的自组装肽的肽序列；(2)利用最先进的计算模型和生物物理测量方法探索自组装肽环境的基本生物物理学；(3)探讨自组装肽环境在心肌、软骨和肝脏三个主要靶组织中的作用。该伙伴关系的牵头机构是麻省理工学院，合作伙伴来自BWH和CSU。