Cyclic di-AMP (c-di-AMP) is a second messenger produced by bacteria but not by mammals. Generated by a family of diadenylate cyclases, c-di-AMP can impact bacterial cell growth, cell wall homeostasis, pathogenicity, and other cellular functions. Bacteria-derived cyclic dinucleotides, including c-di-AMP, trigger the expression of interferon genes in mammalian cells.
Sphingomyelins (SMs) are bioactive sphingolipids found in mammalian cell membranes.1SMs make up 2-15% of the total organ phospholipid population but are found at higher concentrations in the brain and myelin sheaths surrounding peripheral nerves. They interact with cholesterol to control its distribution within cellular membranes and maintain cholesterol homeostasis in cells. SMs undergo hydrolysis by sphingomyelinase to form ceramides, which are sphingolipid mediators of intracellular signaling.2This product is a mixture of SMs, with variable fatty acyl chain lengths, isolated from buttermilk. [Matreya, LLC. Catalog No. 1329] 1.Slotte, J.P., and Ramstedt, B.The functional role of sphingomyelin in cell membranesEur. J. Lipid Sci. Technol.109(10)977-981(2007) 2.Shayman, J.A.SphingolipidsKidney Int.58(1)11-26(2000)
Ethyl 2,4,6-trihydroxybenzoate is a dual-LXR modulator that regulates the expression of key genes in cholesterol homeostasis in multiple cells without inducing lipid accumulation in HepG2 cells. It suppresses cellular cholesterol accumulation in a dose-dependent manner and induces the transcriptional activation of LXR-α -β-responsive genes.
Thioredoxin reductase peptide, corresponding to residues 53–67 in thioredoxin reductase (TrxR), is used in thioredoxin reductase research. Mammalian thioredoxin reductase (TR) catalyzes the reduction of the redox-active disulfide bond of thioredoxin (Trx) and is essential for cellular redox homeostasis.