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Cui Y, Li S, Xu W, Li Y, Xie J, Wang D, Guo J, Zhou J, Feng X, Hou L, Liu J. A Receptor Integrin β1 Promotes Infection of Avian Metapneumovirus Subgroup C by Recognizing a Viral Fusion Protein RSD Motif. Int J Mol Sci 2024; 25:829. [PMID: 38255903 PMCID: PMC10815723 DOI: 10.3390/ijms25020829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 12/30/2023] [Accepted: 01/06/2024] [Indexed: 01/24/2024] Open
Abstract
Avian metapneumovirus subgroup C (aMPV/C) causes respiratory diseases and egg dropping in chickens and turkeys, resulting in severe economic losses to the poultry industry worldwide. Integrin β1 (ITGB1), a transmembrane cell adhesion molecule, is present in various cells and mediates numerous viral infections. Herein, we demonstrate that ITGB1 is essential for aMPV/C infection in cultured DF-1 cells, as evidenced by the inhibition of viral binding by EDTA blockade, Arg-Ser-Asp (RSD) peptide, monoclonal antibody against ITGB1, and ITGB1 short interfering (si) RNA knockdown in cultured DF-1 cells. Simulation of the binding process between the aMPV/C fusion (F) protein and avian-derived ITGB1 using molecular dynamics showed that ITGB1 may be a host factor benefiting aMPV/C attachment or internalization. The transient expression of avian ITGB1-rendered porcine and feline non-permissive cells (DQ cells and CRFK cells, respectively) is susceptible to aMPV/C infection. Kinetic replication of aMPV/C in siRNA-knockdown cells revealed that ITGB1 plays an important role in aMPV/C infection at the early stage (attachment and internalization). aMPV/C was also able to efficiently infect human non-small cell lung cancer (A549) cells. This may be a consequence of the similar structures of both metapneumovirus F protein-specific motifs (RSD for aMPV/C and RGD for human metapneumovirus) recognized by ITGB1. Overexpression of avian-derived ITGB1 and human-derived ITGB1 in A549 cells enhanced aMPV/C infectivity. Taken together, this study demonstrated that ITGB1 acts as an essential receptor for aMPV/C attachment and internalization into host cells, facilitating aMPV/C infection.
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Affiliation(s)
- Yongqiu Cui
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (Y.C.); (S.L.); (W.X.); (Y.L.); (J.X.); (D.W.); (J.G.); (J.Z.); (X.F.)
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou 225009, China
| | - Siting Li
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (Y.C.); (S.L.); (W.X.); (Y.L.); (J.X.); (D.W.); (J.G.); (J.Z.); (X.F.)
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou 225009, China
| | - Weiyin Xu
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (Y.C.); (S.L.); (W.X.); (Y.L.); (J.X.); (D.W.); (J.G.); (J.Z.); (X.F.)
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou 225009, China
| | - Yeqiu Li
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (Y.C.); (S.L.); (W.X.); (Y.L.); (J.X.); (D.W.); (J.G.); (J.Z.); (X.F.)
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou 225009, China
| | - Jiali Xie
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (Y.C.); (S.L.); (W.X.); (Y.L.); (J.X.); (D.W.); (J.G.); (J.Z.); (X.F.)
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou 225009, China
| | - Dedong Wang
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (Y.C.); (S.L.); (W.X.); (Y.L.); (J.X.); (D.W.); (J.G.); (J.Z.); (X.F.)
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou 225009, China
| | - Jinshuo Guo
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (Y.C.); (S.L.); (W.X.); (Y.L.); (J.X.); (D.W.); (J.G.); (J.Z.); (X.F.)
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou 225009, China
| | - Jianwei Zhou
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (Y.C.); (S.L.); (W.X.); (Y.L.); (J.X.); (D.W.); (J.G.); (J.Z.); (X.F.)
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou 225009, China
| | - Xufei Feng
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (Y.C.); (S.L.); (W.X.); (Y.L.); (J.X.); (D.W.); (J.G.); (J.Z.); (X.F.)
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou 225009, China
| | - Lei Hou
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (Y.C.); (S.L.); (W.X.); (Y.L.); (J.X.); (D.W.); (J.G.); (J.Z.); (X.F.)
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou 225009, China
| | - Jue Liu
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (Y.C.); (S.L.); (W.X.); (Y.L.); (J.X.); (D.W.); (J.G.); (J.Z.); (X.F.)
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou 225009, China
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