Distinct patterns of autophagy evoked by two benzoxazine derivatives in vascular endothelial cells
2010
Macroautophagy (referred to as autophagy) is an evolutionarily conserved, bulk-destruction process in eukaryotes. During this process, the cytoplasm containing long-lived proteins and organelles is engulfed into double-membrane autophagosomes, and ultimately undergoes enzymatic degradation within lysosomes. Autophagy serves as a prosurvival machinery, or it may contribute to cell death. Accumulating evidence indicates that autophagy is involved in the pathogenesis and intervention of various human diseases. Pharmacological autophagy modulators are arousing interest from biologists and clinical physicians in light of their potential for disease therapy and increasing our understanding of the mechanism of autophagy. In this study, we identified two autophagy enhancers, 6-amino-2,3-dihydro-3-hydroxymethyl-1,4-benzoxazine (ABO) and 6,8-dichloro-2,3-dihydro-3-hydroxymethyl-1,4-benzoxazine (DBO), in human umbilical vein endothelial cells (HUVEC s) by autophagy assays, and demonstrate that ABO and DBO could stim...
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