LV-320 是一种有效且非竞争性的 ATG4B 抑制剂，其 IC50 值为 24.5 μM，Kd 值为 16 μM。 LV-320 抑制 ATG4B 的酶促活性，阻断细胞自噬，并且在体内稳定，无毒且有活性。
货号:ajcx39570
CAS:2449093-46-1
分子式:C29H26ClNO2S2
分子量：520.11
溶解度:DMSO : 135 mg/mL (259.56 mM; Need ultrasonic)
纯度：98%
存储：Store at -20°C
库存：现货

Background:

LV-320 is a potent and uncompetitive ATG4B inhibitor with an IC50 of 24.5 µM and a Kd of 16 µM. LV-320 inhibits ATG4B enzymatic activity, blocks autophagic flux in cells, and is stable, non-toxic and active in vivo[1].

LV-320 (0-120 µM; SKBR3, MCF7, JIMT1, and MDA-MB-231 cells) treatment results in a dose-dependent increase in endogenous LC3B-II and protein p62 levels in all four cell lines[1].LV-320 (120 µM; 48 hours; MDA-MB-231 cells) treatment results in an increase in LC3B-II, indicating that LV-320 blocks autophagic flux[1].

LV-320 (100-200 mg/kg; oral gavage; three times over two days; GFP-LC3 mice) treatment results in a terminal blood level of 169 µM and a liver level of 104 µM. The expression of GFP-LC3 puncta is significantly greater accumulation in LV-320 treated animals compared to controls. LC3B-II protein is also increased in LV-320-treated animals. The treatment do not cause significant toxicity in mice at either dose[1].

[1]. Bosc D, et al. A new quinoline-based chemical probe inhibits the autophagy-related cysteine protease ATG4B. Sci Rep. 2018 Aug 3;8(1):11653. doi: 10.1038/s41598-018-29900-x.