We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
FV-429 induces autophagy blockage and lysosome-dependent cell death of T-cell malignancies via lysosomal dysregulation.
- Authors
Hu, Po; Wang, Jubo; Qing, Yingjie; Li, Hui; Sun, Wenzhuo; Yu, Xiaoxuan; Hui, Hui; Guo, Qinglong; Xu, Jingyan
- Abstract
It is widely accepted that lysosomes are essential for cell homeostasis, and autophagy plays an important role in tumor development. Here, we found FV-429, a synthetic flavonoid compound, inhibited autophagy flux, promoted autophagosomes accumulation, and inhibited lysosomal degradation in T-cell malignancies. These effects were likely to be achieved by lysosomal dysregulation. The destructive effects of FV-429 on lysosomes resulted in blockage of lysosome-associated membrane fusion, lysosomal membrane permeabilization (LMP), and cathepsin-mediated caspase-independent cell death (CICD). Moreover, we initially investigated the effects of autophagy inhibition by FV-429 on the therapeutic efficacy of chemotherapy and found that FV-429 sensitized cancer cells to chemotherapy agents. Our findings suggest that FV-429 could be a potential novel autophagy inhibitor with notable antitumor efficacy as a single agent.
- Publication
Cell Death & Disease, 2021, Vol 12, Issue 1, p1
- ISSN
2041-4889
- Publication type
Article
- DOI
10.1038/s41419-021-03394-4