MMP-3 Activator

Gestodene (SHB 331; WL 70) is an orally active synthetic progestogen compound of the 19-nortestosterone class. Gestodene binds with high affinity to the progesterone receptor, inhibits 5α-reductase, binds to androgen and aldosterone receptors, and inactivates CYP3A. Gestodene acts as a positive allosteric modulator of PAR1, enhances PAR1-mediated signaling pathways, and is capable of increasing the activation potency of PAR1-AP toward PAR1, thereby promoting ERK1/2 phosphorylation, receptor internalization, cell morphological changes, and human platelet aggregation. Gestodene and its A-ring reduced metabolites promote the proliferation, differentiation, and mineralization of neonatal rat osteoblasts. Gestodene itself has no binding capacity for estrogen receptors, and this osteogenic activity depends on intracellular metabolism to generate A-ring reduced products with estrogen-like agonistic activity. Gestodene is useful for research on diseases related to progesterone secretion and diseases related to thrombosis.

Murine Thrombin is a murine serine protease that plays a central role in blood coagulation. Murine Thrombin stimulates macrophages to polarize into a unique phenotype characterized by anti-inflammatory and pro-repair properties. Murine Thrombin activates PAR1, induces the production of MCP-1, MMP3 and VEGF in mouse intervertebral discs, and causes degradation of the cartilage matrix and destruction of intervertebral disc structure. Murine Thrombin activity increases significantly in paraoxon-induced status epilepticus.