Ezatiostat Hydrochloride

**Semantic type:** Pharmacologic Substance

**Definition:** A liposomal small-molecule glutathione analog inhibitor of glutathione S-transferase (GST) P1-1 with hematopoiesis-stimulating activity. After intracellular de-esterification, the active form of TLK199 (TLK117) binds to and inhibits GST P1-1, thereby restoring Jun kinase and MAPK pathway activities and promoting MAPK-mediated cellular proliferation and differentiation pathways. This agent promotes the proliferation and maturation of hematopoietic precursor cells, granulocytes, monocytes, erythrocytes and platelets.

**Synonyms:** - EZATIOSTAT HYDROCHLORIDE - TER199 - TLK199 - Telintra