Thrombopoietin Receptor

Butyzamide is an effective and oral Mpl activator. It is a novel non-peptide-based molecule with antagonistic effects on thrombopoietin (TPO) receptors, which promotes proliferation of human Mpl (hMpl) expression and mouse pro B cell line Ba/F3. The phosphorylation of JAK2, STAT3, STAT5 and MAPK is induced. Butyzamide has been shown to help increase platelet levels in mouse xenotransplantation trials.

Avatrombopag (YM477) is a new oral thrombopoietin (TPO) receptor agonist, activating TPO receptor and increasing megakaryocytic proliferation/differentiation and platelet production.

Lusutrombopag (Mulpleta) is an orally bioavailable, small molecule thrombopoietin (TPO) receptor agonist for chronic liver disease (CLD) patients with thrombocytopenia prior to elective invasive surgery.

4”-O-Glucosylvitexin (glucosylvitexin) inhibits TPO activity.