c14-hsl

Δ7(Z)-C14-HSL (Compound 12), an immunosuppressive agent, inhibits the proliferation of mouse splenic cells, exhibiting an IC 50 of 17 μM. It holds promise for exploring its role as a molecular mechanism in TNF-R-driven immune diseases, including autoimmune disorders like psoriasis, rheumatoid arthritis, and type 1 diabetes [1].

N-tetradecanoyl-L-homoserine lactone is a long-chain N-acyl homoserine lactone (AHL) and bacterial quorum sensing signal molecule that promotes diatom growth and upregulates genes involved in intracellular signalling.

N-3-oxo-tetradecanoyl-L-Homoserine lactone (3-oxo-C14-HSL) is a small diffusible acylhomoserine lactone signaling molecule that functions in bacterial quorum sensing by coordinating LuxIR-family transcriptional regulators in response to cell density, appears later than shorter-chain AHLs during biofilm development, stimulates putisolvin production, and ultimately inhibits biofilm formation, N-3-oxo-tetradecanoyl-L-Homoserine lactone provides a critical molecular tool for studying bacterial communication, metabolism, and anti-virulence strategies.

Quorum sensing is a regulatory process used by bacteria for controlling gene expression in response to increasing cell density. This regulatory process manifests itself with a variety of phenotypes including biofilm formation and virulence factor production. Coordinated gene expression is achieved by the production, release, and detection of small diffusible signal molecules called autoinducers. The N-acylated homoserine lactones (AHLs) comprise one such class of autoinducers, each of which generally consists of a fatty acid coupled with homoserine lactone (HSL). AHLs vary in acyl group length (C4-C18), in the substitution of C3 (hydrogen, hydroxyl, or oxo group) and in the presence or absence of one or more carbon-carbon double bonds in the fatty acid chain. These differences confer signal specificity through the affinity of transcriptional regulators of the LuxR family. C14:1-δ9-cis-(L)-HSL is a long-chain AHL that functions as a signaling molecule in the quorum sensing of A. vitis. Regulating bacterial quorum sensing signaling can be used to inhibit pathogenesis and thus, represents a new approach to antimicrobial therpy in the treatment of infectious diseases.