Abstract:
:Herein, we demonstrate that HCMV miR-UL112-5p targets ERAP1, thereby inhibiting the processing and presentation of the HCMV pp65495-503 peptide to specific CTLs. In addition, we show that the rs17481334 G variant, naturally occurring in the ERAP1 3' UTR, preserves ERAP1 from miR-UL112-5p-mediated degradation. Specifically, HCMV miR-UL112-5p binds the 3' UTR of ERAP1 A variant, but not the 3' UTR of ERAP1 G variant, and, accordingly, ERAP1 expression is reduced both at RNA and protein levels only in human fibroblasts homozygous for the A variant. Consistently, HCMV-infected GG fibroblasts were more efficient in trimming viral antigens and being lysed by HCMV-peptide-specific CTLs. Notably, a significantly decreased HCMV seropositivity was detected among GG individuals suffering from multiple sclerosis, a disease model in which HCMV is negatively associated with adult-onset disorder. Overall, our results identify a resistance mechanism to HCMV miR-UL112-5p-based immune evasion strategy with potential implications for individual susceptibility to infection and other diseases.
journal_name
Cell Repjournal_title
Cell reportsauthors
Romania P,Cifaldi L,Pignoloni B,Starc N,D'Alicandro V,Melaiu O,Li Pira G,Giorda E,Carrozzo R,Bergvall M,Bergström T,Alfredsson L,Olsson T,Kockum I,Seppälä I,Lehtimäki T,Hurme MA,Hengel H,Santoni A,Cerboni C,Locatedoi
10.1016/j.celrep.2017.06.084subject
Has Abstractpub_date
2017-07-25 00:00:00pages
846-853issue
4issn
2211-1247pii
S2211-1247(17)30932-4journal_volume
20pub_type
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