id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-012802-xm2ftrw2	Zhao, Wu-li	The novel quinolizidine derivate IMB-HDC inhibits STAT5a phosphorylation at 694 and 780 and promotes DNA breakage and cell apoptosis via blocking STAT5a nuclear translocation	2020-01-13		.txt	text/plain	7536	330	50	Our research reveals a novel DNA response mechanism different from general DNA-damaging agents, and that sophoridine derivate inhibits the phosphorylation of Tyr694 and Ser780 of STAT5a to induce the lessened shuttle from the cytoplasm to the nucleus, and leads to the decreased nuclear STAT5a and subsequently inhibits the expression of STAT5a target gene RAD51 that contributes to the checkpoint activation, thus inhibiting ATR activation. All the above-mentioned results demonstrated that IMB-HDC depressed STAT5a nuclear translocation, transcriptional activity, and triggers DNA breakage and apoptosis via blocking 694 and 780 phosphorylation IMB-HDC-induced proliferation inhibition depends on the decreased phosphorylation of 694 and 780 in vivo Next, in a tumor xenograft nude mouse model, we examined IMB-HDC anticancer efficacy. Our previous chip assay analysis showed that the level of several STAT5a target genes decreased; thus, we speculated that STAT5a might be implicated in IMB-HDC-induced apoptosis and DNA breakage in tumor cells.	./cache/cord-012802-xm2ftrw2.txt	./txt/cord-012802-xm2ftrw2.txt