Roles of Sialic Acid, AXL, and MER Receptor Tyrosine Kinases in Mumps Virus Infection of Mouse Sertoli and Leydig Cells
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The mumps virus (MuV) causes epidemic parotitis. MuV also frequently infects the testis and induces orchitis, an important etiological factor contributing to male infertility. However, mechanisms underlying MuV infection of the testis remain unknown. Here, we describe that sialic acid, AXL, and MER receptor tyrosine kinases regulate MuV entry and replication in mouse major testicular cells, including Sertoli and Leydig cells. Sialic acid, AXL, and MER were present in Sertoli and Leydig cells. Sialic acid specifically mediated MuV entry into Sertoli and Leydig cells, whereas both AXL and MER facilitated MuV replication within cells through the inhibition of cellular innate antiviral responses. Mechanistically, the inhibition of type 1 interferon signaling by AXL and MER is essential for MuV replication in Sertoli and Leydig cells. Our findings provide novel insights into the mechanisms behind MuV infection and replication in the testis.
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Dabizzi S, Maggi M, Torcia M Basic Clin Androl. 2024; 34(1):6.
PMID: 38486154 PMC: 10941432. DOI: 10.1186/s12610-024-00222-5.
Microbiology and immune mechanisms associated with male infertility.
Chen J, Chen J, Fang Y, Shen Q, Zhao K, Liu C Front Immunol. 2023; 14:1139450.
PMID: 36895560 PMC: 9989213. DOI: 10.3389/fimmu.2023.1139450.
Viral tropism for the testis and sexual transmission.
Wang F, Zhang J, Wang Y, Chen Y, Han D Front Immunol. 2022; 13:1040172.
PMID: 36439102 PMC: 9682072. DOI: 10.3389/fimmu.2022.1040172.
Jia J, Liu M, Xue Z, Wang Z, Pan Y Iran J Public Health. 2021; 50(7):1405-1415.
PMID: 34568179 PMC: 8426770. DOI: 10.18502/ijph.v50i7.6630.