Apoptosis induced by NS1 gene of Canine Parvovirus-2 is caspase dependent and p53 independent.
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| Abstract | :  Apoptosis is programmed cell death that normally occurs during development and aging in multicellular animals. Apoptosis also occurs as a defense mechanism against disease or harmful external agents. It can be initiated by a variety of stimuli including viruses and viral proteins. Canine parvovirus type 2 (CPV-2) that causes acute disease in dogs has been found to induce cell cycle arrest and DNA damage leading to cellular lysis. Though non structural protein 1 (NS1) of many parvoviruses has been found to be apoptotic, no report on the apoptotic potential of NS1 of CPV-2 (CPV-2.NS1) exists. In this study, we evaluated the apoptotic potential of CPV-2.NS1 in HeLa cells. CPV-2.NS1 has been found to induce apoptosis which was evident through characteristic DNA fragmentation, increase in hypodiploid cell count, phosphatidyl serine translocation and activation of caspase-3. Increase in caspase-3 activity and no change in p53 activity with time in CPV-2.NS1 expressing HeLa cells showed the induction of apoptosis to be caspase dependent and p53 independent. | 
| Year of Publication | :  2013 | 
| Journal | :  Virus research | 
| Volume | :  173 | 
| Issue | :  2 | 
| Number of Pages | :  426-30 | 
| ISSN Number | :  0168-1702 | 
| URL | :  https://linkinghub.elsevier.com/retrieve/pii/S0168-1702(13)00049-X | 
| DOI | :  10.1016/j.virusres.2013.01.020 | 
| Short Title | :  Virus Res | 
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