Unity Biotechnology, Inc.
Inhibitors of HSP90, PI3-Kinase, Proteasome, HDAC, and P97 Pathways for Selective Removal of Senescent Cells in the Treatment of Age Related Conditions

Abstract:

Senescent cell medicine encompasses the paradigm that many conditions that are associated with aging or tissue damage are caused or mediated by senescent cells. This disclosure shows that HSP90, pI3-kinase, proteasome, HDAC, and p97 pathways are all active in senescent cells, and can be used as an effective means for removing senescent cells from a target tissue. Exemplary inhibitors of each of these pathways are provided. Also provided is a new genus of p97 inhibitor molecules. The structure includes a core 4 amino pyrimidine ring system, substituted at the 2 position with a nitrogen atom of an amino substituent or a N heterocycle. The 4 amino substituent of the core ring system is optionally linked to a substituted phenyl group. Any of the inhibitors referred to in this disclosure can be screened for senolytic activity and developed for the treatment of conditions such as osteoarthritis, ophthalmic disease, pulmonary disease, and atherosclerosis.