IRAK inhibitor 4 is a compound that functions as an inhibitor of interleukin-1 receptor-associated kinase 4 (IRAK4). It specifically targets and inhibits the activity of IRAK4. The (trans) form of IRAK inhibitor 4 refers to its specific molecular configuration.
The group IVA phospholipase A2 (PLA2), known as calcium-dependent cytosolic PLA2 (cPLA2), selectively releases arachidonic acid (AA) from membrane phospholipids, playing a central role in initiating the synthesis of prostaglandins (PGs) and leukotrienes (LTs). Pyrrophenone inhibits cPLA2α with an IC50 of 4.2 nM in enzyme assays and potently blocks the release of AA and the production of PGE2 and LTC4 in cells (IC50 = 24, 25, and 14 nM, respectively). Its action is reversible and selective, as pyrrophenone inhibits the secretory type IB and IIA PLA2s with more than a hundred-fold less potency. Pyrrophenone has also been shown to inhibit calcium ionophore (A23187)-stimulated AA release from monocytic cells, interleukin-1-induced PGE2 synthesis in mesangial cells, and the production of PGE2, LTs, and platelet-activating factor by human neutrophils, always with maximal inhibition at concentrations below 1 μM.
Interleukin-6 fragment (human) 是一种多效性细胞因子,由淋巴细胞及非淋巴细胞产生。该分子的编码基因位于人类第7号染色体,长度大约为5 kb。Interleukin-6 fragment (human) 在免疫响应、急性相应、炎症过程、癌症治疗及血液造血方面均有重要的潜在应用。
PCC0208018 is a novel activator of effector T cells, enhancing T cell proliferation and activation to release interferon gamma (IFN-γ) and interleukin-2 (IL-2) without blocking the programmed cell death 1 (PD-1) programmed cell death-ligand 1 (PD-L1) binding and not directly affecting tumor cell viability in vitro.