Journal
ANIMAL BIOTECHNOLOGY
Volume 33, Issue 4, Pages 629-637Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/10495398.2020.1813151
Keywords
Porcine; Wharton's Jelly; mesenchymal stem cells; virus isolation; classical swine fever virus
Funding
- ICAR-Indian Veterinary Research Institute, Izatnagar
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This study reports the isolation of Classical Swine Fever Virus (CSFV) in Porcine Wharton's jelly mesenchymal stem cells (pWJ-MSCs) for the first time. The ability of pWJ-MSCs to support CSFV replication was confirmed through the detection of viral antigen and RT-PCR analysis. This research provides new insights into the replication mechanism of CSFV in different cell types.
Classical Swine Fever (CSF) is an extremely infectious and deadly disease of pigs and wild boars caused by the CSF virus (CSFV) which is a member of the Pestivirus genus and the familyFlaviviridae. This study was designed to detect the permissibility and replication of CSFV in mesenchymal stem cells (MSCs) monolayer derived from Porcine Wharton's jelly. Porcine Wharton's jelly MSCs (pWJ-MSCs) wereex vivoexpanded and propagated for more than 81 generations and third passage pWJ-MSCs were characterized as per standard criteria i.e., growth characteristics, trilineage differentiation potential and molecular characterization for pluripotency and stem cell surface markers. Porcine WJ tissue samples found negative for CSFV by RT-PCR test were processed further for the isolation of pWJ-MSCs and CSFV was propagated over the characterized pWJ-MSCs monolayer. No cytopathic effect was observed, which was consistent with non-cytopathic nature of CSFV. The replication of CSFV in pWJ-MSCs was affirmed by RT-PCR and demonstration of viral antigen in the cytoplasm of virus infected cells by immuno-staining technique. In total, three different CSFV isolates were propagated in pWJ-MSCs. Primary pWJ-MSCs permitted CSFV replication to good titer. To the best of our information, this is the first ever report of isolation of CSFV in pWJ-MSCs.
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