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
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Journal | :
Virus research
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Volume | :
173
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Issue | :
2
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Number of Pages | :
426-30
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ISSN Number | :
0168-1702
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URL | :
https://linkinghub.elsevier.com/retrieve/pii/S0168-1702(13)00049-X
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DOI | :
10.1016/j.virusres.2013.01.020
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Short Title | :
Virus Res
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