Caspase mediated beclin-1 dependent autophagy tuning activity and apoptosis promotion by surface modified hausmannite
Souvik Mondal1,2, Anupam Giri3, Yunjiao Zhang1,2
1The CAS Key Laboratory of Innate Immunity and Chronic Disease, Innovation Center for Cell Signaling Network, School of Life Sciences and Medical Center, University of Science and Technology of China, Hefei, Anhui, 230027, China.
Abstract:
Hidden effects of nano-materials to induced autophagy, a lysosomal degradative pathway, remain an exciting topic, in the level of material-protein interaction and subsequent cellular signaling features. Here, our studies show that surface modified hausmannite nanoparticles (Mn3 O4 NPs) can uniformly cleave/splice Beclin-1 protein and alter cellular mechanism on the emphasis of tuning autophagy and subsequently promote enhancement of apoptosis. Details investigation of Beclin-1 dependency and its uniform cleavage/splice pattern by surface modified Mn3 O4 NPs, shows tuning of cellular mechanism on emphasis of caspase mediated autophagy tuning. Our findings will also clarify the conflict between apoptosis-autophagy on the basis of its unique property derived from surface chemistry modulation, in context of Beclin-1 eminent cleavage/splice which remarks novel effect of Beclin-1 dependent tuning of autophagosomes formation and switch to enhance apoptotic index, mediates by PI3KC3 cleavage and caspase activation. © 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 105A: 1299-1310, 2017.
More Related Videos
Related Concept Videos
Autophagic Cell Death
Autophagy and Apoptosis
Autophagy can activate apoptosis. In normal conditions, the autophagy activating protein Beclin-1 and...
Caspases
The Intrinsic Apoptotic Pathway
Delivery Pathways to the Lysosome
Endocytosis
In endocytosis, the cell membrane takes up macromolecules and particles from the surrounding medium. Clathrin-mediated...
Autophagy
An autophagic pathway consists of a series of signaling events activated in response to diverse stress and physiological conditions such as food deprivation,...
The Extrinsic Apoptotic Pathway


