Reagents, compositions and methods for improving viability and function of cells, tissues and organs
申请人:Der Sarkissian Shant
公开号:US11446265B2
公开(公告)日:2022-09-20
Compounds, compositions and methods for improving the viability and/or function of cells or for the in vitro, ex vivo or in vivo protection of cells, tissue, graft or organs from various damages are described. The reagents and composition are based on activation of the heat shock response and/or the antioxidant response and include for example, HSP90 co-factor inhibitor such as Celastrol or Celastrol analogs used alone or in combination with an adjunct agent (e.g., a NRF-2 activator, antioxidant, etc.). Therapeutic enhancement may also include increase in paracrine effector production and signaling. Methods for improving the resistance of cells, tissue, grafts or organs to damages or stress, such as hypoxic or oxidative stress-induced cell death, and/or for improving the viability and retention of transplanted or transfused cells are also described. Therapeutic treatment or prevention of ischemic injury (e.g. myocardial infarct, ischemia/reperfusion injury) and related stressors (hypoxia, oxidative stress, inflammation, sepsis/shock, etc) are also provided.
本文描述了用于提高细胞活力和/或功能,或用于体外、体内或体内保护细胞、组织、移植物或器官免受各种损伤的化合物、组合物和方法。这些试剂和组合物以激活热休克反应和/或抗氧化反应为基础,例如包括单独使用或与辅助剂(如 NRF-2 激活剂、抗氧化剂等)结合使用的 HSP90 协同因子抑制剂,如 Celastrol 或 Celastrol 类似物。治疗增强还可包括增加旁分泌效应物质的产生和信号传递。还描述了提高细胞、组织、移植物或器官对损伤或应激(如缺氧或氧化应激诱导的细胞死亡)的抵抗力,和/或提高移植或输注细胞的存活率和保留率的方法。还提供了对缺血性损伤(如心肌梗塞、缺血/再灌注损伤)和相关应激源(缺氧、氧化应激、炎症、败血症/休克等)的治疗或预防。