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Peer-reviewed veterinary case report

Role of zinc metalloprotease (ZMPSTE24) in porcine reproductive and respiratory syndrome virus (PRRSV) replication in vitro.

Journal:
Archives of virology
Year:
2022
Authors:
Katwal, Pratik et al.
Affiliation:
Department of Biology and Microbiology · United States

Abstract

The transmembrane zinc metalloprotease ZMPSTE24 works in cooperation with interferon-induced transmembrane protein 3 (IFITM3) to restrict entry of several enveloped viruses. We investigated the role of ZMPSTE24 in porcine reproductive and respiratory syndrome virus (PRRSV) replication. ZMPSTE24 overexpression significantly reduced PRRSV replication in MARC-145 cells. Interestingly, knockdown of endogenous ZMPSTE24 did not significantly impact virus replication. There was no significant difference in the percentage of PRRSV-positive cells and viral RNA copies at 3 hours postinfection (hpi) between cells transfected with ZMPSTE24-FLAG and the vector control. Our results suggest that ZMPSTE24 overexpression may restrict PRRSV replication at a post-entry step.

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Original publication: https://pubmed.ncbi.nlm.nih.gov/35857144/