Porcine Epidemic Diarrhea Virus Replication in Human Intestinal Cells Reveals Potential Susceptibility to Cross-Species Infection

被引：11

作者：

Niu, Zheng ^{[1
,2
]}

Zhang, Shujuan ^{[1
]}

Xu, Shasha ^{[1
]}

Wang, Jing ^{[1
]}

Wang, Siying ^{[1
]}

Hu, Xia ^{[1
]}

Zhang, Li ^{[1
]}

Ren, Lixin ^{[1
]}

Zhang, Jingyi ^{[1
]}

Liu, Xiangyang ^{[1
,3
]}

Zhou, Yang ^{[1
,3
]}

Yang, Liu ^{[4
]}

Song, Zhenhui ^{[1
,5
]}

机构：

[1] Southwest Univ, Coll Vet Med, Chongqing 402460, Peoples R China

[2] Northwest A&F Univ, Coll Vet Med, Xianyang 712100, Peoples R China

[3] Xinjiang Agr Univ, Coll Vet Med, Urumqi 830052, Peoples R China

[4] Natl Ctr Technol Innovat Pigs, Chongqing 402460, Peoples R China

[5] Southwest Univ, Med Res Inst, Immunol Res Ctr, Chongqing 402460, Peoples R China

来源：

VIRUSES-BASEL | 2023年 / 15卷 / 04期

关键词：

PEDV; human small intestinal epithelial cells; cross-species transmission; CORONAVIRUSES; DISEASE;

D O I：

10.3390/v15040956

中图分类号：

Q93 [微生物学];

学科分类号：

071005 ; 100705 ;

摘要：

Various coronaviruses have emerged as a result of cross-species transmission among humans and domestic animals. Porcine epidemic diarrhea virus (PEDV; family Coronaviridae, genus Alphacoronavirus) causes acute diarrhea, vomiting, dehydration, and high mortality in neonatal piglets. Porcine small intestinal epithelial cells (IPEC-J2 cells) can be used as target cells for PEDV infection. However, the origin of PEDV in pigs, the host range, and cross-species infection of PEDV remain unclear. To determine whether PEDV has the ability to infect human cells in vitro, human small intestinal epithelial cells (FHs 74 Int cells) were inoculated with PEDV LJX and PEDV CV777 strains. The results indicated that PEDV LJX, but not PEDV CV777, could infect FHs 74 Int cells. Furthermore, we observed M gene mRNA transcripts and N protein expression in infected FHs 74 Int cells. A one-step growth curve showed that the highest viral titer of PEDV occurred at 12 h post infection. Viral particles in vacuoles were observed in FHs 74 Int cells at 24 h post infection. The results proved that human small intestinal epithelial cells are susceptible to PEDV infection, suggesting the possibility of cross-species transmission of PEDV.

引用

页数：12

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