Bioactivity | Randialic acid B, a triterpenoid compound, is a formyl peptide receptor 1 (FPR1) antagonist. Randialic acid B blocks FPR1 in human neutrophils and attenuates psoriasis-like inflammation in vivo[1]. |
Invitro | Randialic acid B (0.1-3 μM; for 5 min) selectively inhibits reactive oxygen species production, elastase release, and CD11b expression in human neutrophils activated by FPR1. Randialic acid B inhibits the binding of N-formyl peptide to FPR1 in human neutrophils, neutrophil-like THP-1 cells, and hFPR1-transfected HEK293 cells, indicating FPR1 antagonism[1]. Randialic acid B acts competitively for its binding to the FPR1 receptor. The FPR1-downstream signaling such as Ca2+ mobilisation and activation of Akt and MAPKs is also competitively inhibited[1]. Randialic acid B shows significant cell-protective effects against H2O2-induced H9c2 cardiomyocyte injury[2]. |
Name | Randialic acid B |
CAS | 14021-14-8 |
Formula | C30H46O3 |
Molar Mass | 454.68 |
Transport | Room temperature in continental US; may vary elsewhere. |
Storage | 4°C, protect from light *In solvent : -80°C, 6 months; -20°C, 1 month (protect from light) |