Azithromycin enhances the cytotoxicity of DNA‐damaging drugs via lysosomal membrane permeabilization in lung cancer cells
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Pterostilbene-Induced Tumor Cytotoxicity: A Lysosomal Membrane Permeabilization-Dependent Mechanism
The phenolic phytoalexin resveratrol is well known for its health-promoting and anticancer properties. Its potential benefits are, however, limited due to its low bioavailability. Pterostilbene, a natural dimethoxylated analog of resveratrol, presents higher anticancer activity than resveratrol. The mechanisms by which this polyphenol acts against cancer cells are, however, unclear. Here, we sh...
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(-)-Oleocanthal (OC), a phenolic compound present in extra-virgin olive oil (EVOO), has been implicated in the health benefits associated with diets rich in EVOO. We investigated the effect of OC on human cancer cell lines in culture and found that OC induced cell death in all cancer cells examined as rapidly as 30 minutes after treatment in the absence of serum. OC treatment of non-transformed...
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(-)-Epigallocatechin-3-gallate (EGCG) is the most extensive studied tea polyphenol for its anti-cancer function. In this study, we report a novel mechanism of action for EGCG-mediated cell death by identifying the critical role of lysosomal membrane permeabilization (LMP). First, EGCG-induced cell death in human cancer cells (both HepG2 and HeLa) was found to be caspase-independent and accompan...
متن کاملUrinary proteins induce lysosomal membrane permeabilization and lysosomal dysfunction in renal tubular epithelial cells.
Lysosomal membrane permeabilization (LMP) has been shown to cause the release of cathepsins and other hydrolases from the lysosomal lumen to the cytosol and initiate a cell death pathway. Whether proteinuria triggers LMP in renal tubular epithelial cells (TECs) to accelerate the progression of renal tubulointerstitial injury remains unclear. In the present study, we evaluated TEC injury as well...
متن کاملThe Use of Lysosomotropic Dyes to Exclude Lysosomal Membrane Permeabilization.
Progressive lowering of pH is characteristic for the endocytic pathway and enables efficient degradation of molecules by hydrolytic enzymes at its distal end. The existence of the proton gradient over the endosomal/lysosomal membranes depends on the action of the vacuolar ATPase (v-ATPase). During lysosomal membrane permeabilization (LMP), protons leak through the destabilized membrane, resulti...
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ژورنال
عنوان ژورنال: Cancer Science
سال: 2021
ISSN: 1347-9032,1349-7006
DOI: 10.1111/cas.14992