Metabolic labeling and molecular enhancement of biological materials using bioorthogonal reactions
申请人:The General Hospital Corporation
公开号:US20170362266A1
公开(公告)日:2017-12-21
The present application provides methods of functionalizing an organ or tissue of a mammal by administering a nutrient (e.g., peracetylated N-azido galactosamine Ac4GalNAz) to the mammal or by culturing an organ or tissue in a bioreactor containing such nutrient. The present application also provides methods of selectively functionalizing extracellular matrix (ECM) of an organ or tissue of a mammal by administering a nutrient (e.g., peracetylated N-azido galactosamine Ac4GalNAz) to the mammal. In some aspects, the present application provides a decellularized scaffold of a mammalian organ or tissue comprising an extracellular matrix, wherein the extracellular matrix of the decellularized scaffold is functionalized with a chemical group that is reactive in a bioorthogonal chemical reaction, such as an azide chemical group. The present application also provides biological prosthetic mesh and mammalian organs and tissues for transplantation prepared according to the methods of the application.
本申请提供了一种通过向哺乳动物投与营养物质(例如,乙酰化N-叠氮基半乳糖氨酸Ac4GalNAz)或在含有这种营养物质的生物反应器中培养器官或组织来功能化哺乳动物器官或组织的方法。本申请还提供了一种通过向哺乳动物投与营养物质(例如,乙酰化N-叠氮基半乳糖氨酸Ac4GalNAz)来选择性地功能化哺乳动物器官或组织的细胞外基质(ECM)的方法。在某些方面,本申请提供了哺乳动物器官或组织的脱细胞支架,其中脱细胞支架的细胞外基质被功能化为在生物正交化学反应中具有反应性的化学基团,例如叠氮基团。本申请还提供了根据本申请的方法制备的生物义肢网和哺乳动物器官和组织用于移植。