13C15-Nivalenol is intended for use as an internal standard for the quantification of nivalenol by GC- or LC-MS. Nivalenol (T13797) is a trichothecene mycotoxin that has been found inFusarium.1It is lethal to mice (LD50= 6.9 mg/kg).2Nivalenol (5,10,and 15 mg/kg)also induces thymic,splenic,and Peyer's patch cell apoptosis in mice.3
3-Acetyldeoxy Nivalenol-13C17 is intended for use as an internal standard for the quantification of 3-acetyldeoxy nivalenol by GC- or LC-MS. 3-Acetyldeoxy nivalenol is a mycotoxin that has been found inF. graminearum.1
Sydowinin B is a xanthone polyketide that has been found inA. sydowiiand has immunosuppressant activity.1It inhibits LPS- or concanavalin A-induced proliferation of isolated mouse splenic lymphocytes (IC50s = 19.2 and 20.8 μg/ml, respectively).2Sydowinin B inhibits superoxide generation in, and elastase release from, isolated human neutrophils induced by cytochalasin B and N-Formyl-Met-Leu-Phe with IC50values of 21.2 and 12.62 μM, respectively.3
Remisporine B is a polyketide and derivative of remisporine A that has been found inPenicilliumand has immunosuppressant activity.1,2It 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)
Insulin β Chain Peptide (15-23), also referred to as INS, is an insulin-derived peptide that is specifically recognized by islet-associated T cells. The tetramer of Insulin β Chain Peptide (15-23) effectively stained the INS-reactive CTL clone G9C8; however, neither this tetramer nor the negative control tetramer (TUM) exhibited staining on the splenic CD8+ T cells obtained from NOD or 8.3-TCRαβ transgenic NOD mice.