VDAC Ligand

NCATS-SM0225 is an endoplasmic reticulum-associated degradation (ERAD) inhibitor and a direct binder of VDAC1, VDAC2 and VDAC3. NCATS-SM0225 exhibits an IC₅₀of 1.02 μM for ERAD and a K_d of 3.13 μM for human VDAC1 binding. NCATS-SM0225 disrupts cellular calcium homeostasis, enhances VDAC1-IP3R coupling and activating PERK. NCATS-SM0225 selectively kills cancer cells, exhibits tumor growth inhibitory effects in melanoma xenograft models. NCATS-SM0225 can be used for research on multiple cancers including melanoma, as well as the molecular mechanisms of ERAD and calcium homeostasis regulation.

WEHI-3773 is a VDAC2 ligand and apoptosis modulator. WEHI-3773 directly binds to the β7-β10 region of VDAC2 and disrupts its interaction with BAX and BAK. WEHI-3773 regulates BAX-mediated apoptosis in BAK-deficient cells by modulating conformational activation of BAX, mitochondrial redistribution, and cytochrome c release. WEHI-3773 overcomes Venetoclax (HY-15531) resistance, resensitizes leukemia cells carrying BAX mutations to BH3 mimetics, and enables long-term clonogenic survival of BAK-deficient cells treated with BH3 mimetics. WEHI-3773 is applicable to research related to acute myeloid leukemia.