chromomycin a-3

Chromomycin A3（色霉素 A3）一种由链霉菌产生的抗生素，在二价阳离子存在的情况下与富含gc的DNA序列结合，抑制DNA复制和转录；也被用作荧光DNA染色剂和检测剂；对霍奇金氏病、肺腺癌、黑色素瘤、乳腺癌等疾病具有抗癌活性。

4E-Deacetylchromomycin A3 是一种有用的有机化合物，可用于生命科学领域的相关研究。其产品编号为 T124367，CAS号为 6992-71-8。

Chromomycin A2 is an aureolic acid that has been found in several marine actinomycetes and has antibacterial and anticancer activities. Chromomycin A2 inhibits the growth of B. subtilis in an agar diffusion assay. It also inhibits the growth of human SGC7901 gastric cancer, HepG2 hepatocellular carcinoma, A549 lung epithelial adenocarcinoma, HCT116 colon cancer, and COC1 ovarian cancer cells, as well as human umbilical vein endothelial cells (HUVECs; IC50s = 4, 0.5, 3, 5, 5, and 8 nM, respectively). Chromomycin A2 (30 nM) halts the cell cycle in the G0/G1 phase and increases the protein levels of LC3A and LC3B in MALME-3M melanoma cells, indicating that it induces autophagy. It also increases the levels and promoter activity of the autophagic proteins ATG7 and ATG10 and reduces cell viability to 50% in human SCC-11 squamous cell carcinoma cells when used at a concentration of 30 nM.