blt 1

BLT-1 是一种氨基硫脲铜螯合剂，是一种选择性清除受体 B1 型 (SR-BI) 抑制剂，抑制高密度脂蛋白 (HDL) 和 SR-BI 介导的细胞之间的脂质转移。

BLT2 probe 1 (化合物 13) 是一款以 CAY10583 合成激动剂为基础的荧光探针，主要靶向糖尿病伤口愈合和胃肠道病变中潜在的 BLT2。该探针适用于多种检测系统中对 BLT2 受体配体进行药理学研究。

BLT2 agonist-1 (compound 15b) 是选择性BLT2拮抗剂，能在224 nM IC50下抑制CHO-BLT2细胞趋化性。它不影响CHO-BLT1细胞趋化性，并在132 nM Ki值下抑制LTB4与BLT2结合。BLT2 agonist-1适用于哮喘、慢性阻塞性肺病等炎症性气道疾病研究。

Leukotriene B4 (LTB4) is a dihydroxy fatty acid derived from arachidonic acid through the 5-lipoxygenase pathway. It promotes a number of leukocyte functions including aggregation, stimulation of ion fluxes, enhancement of lysosomal enzyme release, superoxide anion production, chemotaxis, and chemokinesis. At least two LTB4 receptors, termed BLT1 and BLT2, have been identified. 14,15-dehydro LTB4 is a LTB4 receptor antagonist that has a higher binding affinity for BLT1, demonstrating a Ki value of 27 nM, compared to BLT2, which has a Ki value of 473 nM. 14,15-dehydro LTB4 inhibits LTB4-induced release of lysozymes from rat polymorphonuclear leukoctyes with an IC50 value of 1 μM.