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The use of cells from ANPEP knockout pigs to evaluate the role of aminopeptidase N (APN) as a receptor for porcine deltacoronavirus (PDCoV) #MMPMID32056711
Stoian A; Rowland RRR; Petrovan V; Sheahan M; Samuel MS; Whitworth KM; Wells KD; Zhang J; Beaton B; Cigan M; Prather RS
Virology 2020[Feb]; 541 (ä): 136-140 PMID32056711show ga
The coronaviruses, porcine epidemic diarrhea virus (PEDV), transmissible gastroenteritis virus (TGEV), and porcine deltacoronavirus (PDCoV) represent important sources of neonatal diarrhea on pig farms. The requirement for aminopeptidase N (APN) as a receptor for TGEV, but not for PEDV, is well established. In this study, the biological relevance of APN as a receptor for PDCoV was tested by using CRISPR/Cas9 to knockout the APN gene, ANPEP, in pigs. Porcine alveolar macrophages (PAMs) from ANPEP knockout (KO) pigs showed resistance to PDCoV infection. However, lung fibroblast-like cells, derived from the ANPEP KO PAM cultures, supported PDCoV infection to high levels. The results suggest that APN is a receptor for PDCoV in PAMs but is not necessary for infection of lung-derived fibroblast cells. The infection of the ANPEP KO pigs with PDCoV further confirmed that APN is dispensable as a receptor for PDCoV.
|Animals[MESH]
|CD13 Antigens/genetics/*physiology[MESH]
|Coronavirus Infections/*etiology[MESH]
|Gastroenteritis, Transmissible, of Swine/etiology[MESH]