Tissue-Targeted Enzyme for Localized Tryptophan Catabolism to Direct Subcutaneous and Oral Mucosal Inflammatory Responses

项目总结/摘要 人们非常需要有针对性的技术来引导免疫系统， 局部炎症的控制性抑制。编程免疫细胞代谢是一种新的 和活跃的研究领域，具有众多不同的免疫治疗应用。我们 开发局部施用组织靶向嵌合体的创新新方法， 分解代谢必需氨基酸色氨酸并产生犬尿氨酸的酶， 共同诱导强大的免疫抑制代谢程序。所选组织 靶向结构域赋予延长的组织保留，并且酶活性可以阻断局部 炎症持续时间长。我们正在应用这项技术来改善 牙周病，其中局部的非解决慢性炎症与牙周炎有关， 从富含耐受性的粘膜下环境转移到炎症环境， Th 1和Th 17 T细胞在调节性T细胞的代价。

Project Summary/Abstract There is a considerable need for targeted technologies that direct the immune system for the controlled suppression of localized inflammation. Programming immune cell metabolism is a new and active area of investigation with numerous diverse immunotherapy applications. We are developing an innovative new approach of locally administering a tissue-targeted chimeric enzyme which catabolize the essential amino acid, tryptophan, and produces kynurenines, together inducing a powerful immunosuppressive metabolic programming. The chosen tissue targeting domain confers prolonged tissue retention, and the enzymatic activity can block local inflammation for an extended time. We are applying this technology for the amelioration of periodontal disease, in which localized non-resolving chronic inflammation is associated with a shift away from a submucosal environment rich in tolerance toward one of inflammation consisting of Th1 and Th17 T cells at the expense of regulatory T cells.