MI-2 is a MALT1 inhibitor (IC50 = 5.84 M). MI-2 binds directly to MALT1 and irreversibly suppresses protease function. Decreases NF-B activity induced by MALT1. Mucosa-associated-lymphoid-tissue lymphoma-translocation gene 1 (MALT1), a paracaspase and essential regulator for nuclear factor kB (NF-B) activation, plays an important role in innate and adaptive immunity. Suppression of MALT1 protease activity with small molecule inhibitors showed promising efficacies in subtypes of B cell lymphoma and improvement in experimental autoimmune encephalomyelitis model.
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