Rafutrombopag (tautomerism) (Hetrombopag) is an orally active nonpeptide thrombopoietin receptor (TPOR/MPL) agonist. Rafutrombopag can chelate iron and alleviate iron overload while promoting haematopoiesis. Rafutrombopag specifically stimulates proliferation and differentiation of human TPOR-expressing cells, including 32D- MPL and human hematopoietic stem cells through stimulation of STAT, PI3K and ERK signalling pathways. Rafutrombopag effectively up-regulates G1-phase-related proteins, including p-RB, Cyclin D1 and CDK4/6, normalizes progression of the cell cycle, and prevents apoptosis by modulating BCL-XL/BAK expression in 32D-MPL cells. Rafutrombopag protects cardiomyocyte survival from oxidative stress damage as an enhancer of stem cells. Rafutrombopag can be used for the study of immune thrombocytopenia and oxidative stress-related cardiovascular disease[1][2][3].
