NCR1-deficiency diminishes the generation of protective murine cytomegalovirus antibodies by limiting follicular helper T-cell maturation (CROSBI ID 242000)
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Miletić, Antonija ; Lenartić, Maja ; Popović, Branka ; Brizić, Ilija ; Tršan, Tihana ; Miklić, Karmela ; Mandelboim, Ofer ; Krmpotić, Astrid ; Jonjić, Stipan
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NCR1-deficiency diminishes the generation of protective murine cytomegalovirus antibodies by limiting follicular helper T-cell maturation
NKp46/NCR1 is an activating NK-cell receptor implicated in the control of various viral and bacterial infections. Recent findings also suggest that it plays a role in shaping the adaptive immune response to pathogens. Using NCR1-deficient (NCR1gfp/gfp) mice, we provide evidence for the role of NCR1 in antibody response to mouse cytomegalovirus infection (MCMV). The absence of NCR1 resulted in impaired maturation, function and NK-cell migration to regional lymph nodes. In addition, CD4+ T-cell activation and follicular helper T-cell (Tfh) generation were reduced, leading to inferior germinal center (GC) B-cell maturation. As a consequence, NCR1gfp/gfp mice produced lower amounts ofMCMVspecific antibodies upon infection, which correlated with lower number of virus-specific antibody secreting cells in analyzed lymph nodes.
Antiviral antibodies, Follicular helper T cells, Germinal center B cells, NCR1
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