Remisporine B is a polyketide, that can be isolated from Penicillium sp. ZJ-SY2. Remisporine B exhibits immunosuppressive efficacy, that inhibits concanavalin A (HY-P2149)-induced T-cell proliferation and LPS (HY-D1056)- induced B-cell proliferations of mouse splenic lymphocytes with IC50 of 30.1 μg/mL and 32.4 μg/mL[1].
Remisporine B is a polyketide and derivative of remisporine A that has been found in Penicillium and has immunosuppressant activity.1,2 It inhibits LPS- or concanavalin A-induced proliferation of isolated mouse splenic lymphocytes (IC50s = 30.1 and 32.4 μg/ml, respectively).1
1.Liu, H., Chen, S., Liu, W., et al.Polyketides with immunosuppressive activities from mangrove endophytic fungus Penicillium sp. ZJ-SY2Mar. Drugs14(12)217(2016)
2.Kong, F., and Carter, G.T.Remisporine B, a novel dimeric chromenone derived from spontaneous Diels-Alder reaction of remisporine ATetrahedron Lett.44(15)3119-3122(2003)