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. 2016 Feb;31(1):49-56.
doi: 10.1007/s12250-015-3690-4. Epub 2016 Feb 19.

Comparison of lentiviruses pseudotyped with S proteins from coronaviruses and cell tropisms of porcine coronaviruses

Jingjing Wang  1   2 , Feng Deng  1   2 , Gang Ye  1   2 , Wanyu Dong  1   2 , Anjun Zheng  1   2 , Qigai He  1   2   3 , Guiqing Peng  4   5   6
Affiliations

Comparison of lentiviruses pseudotyped with S proteins from coronaviruses and cell tropisms of porcine coronaviruses

Jingjing Wang et al. Virol Sin. 2016 Feb.

Abstract

The surface glycoproteins of coronaviruses play an important role in receptor binding and cell entry. Different coronaviruses interact with their specific receptors to enter host cells. Lentiviruses pseudotyped with their spike proteins (S) were compared to analyze the entry efficiency of various coronaviruses. Our results indicated that S proteins from different coronaviruses displayed varied abilities to mediate pseudotyped virus infection. Furthermore, the cell tropisms of porcine epidemic diarrhea virus (PEDV) and transmissible gastroenteritis virus (TGEV) have been characterized by live and pseudotyped viruses. Both live and pseudoviruses could infected Vero- CCL-81 (monkey kidney), Huh-7 (human liver), and PK-15 (pig kidney) cells efficiently. CCL94 (cat kidney) cells could be infected efficiently by TGEV but not PEDV. Overall, our study provides new insights into the mechanisms of viral entry and forms a basis for antiviral drug screening.

Keywords: Coronavirus; cell entry; pseudotyped virus; receptor binding; spike proteins.

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