Mauritian cynomolgus macaques with M3M4 MHC genotype control SIV mac251 infection
H Li, RW Omange, C Czarnecki… - Journal of medical …, 2017 - Wiley Online Library
H Li, RW Omange, C Czarnecki, JF Correia‐Pinto, J Crecente‐Campo, M Richmond, L Li…
Journal of medical primatology, 2017•Wiley Online LibraryBackground Understanding natural HIV control may lead to new preventative or therapeutic
strategies. Several protective major histocompatibility complex (MHC) genotypes were found
in humans and rhesus macaques. Here, we report a simian immunodeficiency virus (SIV)
controller MHC genotype in Mauritian cynomolgus macaques (MCM s). Methods Twelve
MHC‐genotyped MCM s were infected with SIV mac251 and monitored for viral loads and
CD 4+ T‐cell counts. Results Two macaques with M3M4 genotype exhibited the lowest peak …
strategies. Several protective major histocompatibility complex (MHC) genotypes were found
in humans and rhesus macaques. Here, we report a simian immunodeficiency virus (SIV)
controller MHC genotype in Mauritian cynomolgus macaques (MCM s). Methods Twelve
MHC‐genotyped MCM s were infected with SIV mac251 and monitored for viral loads and
CD 4+ T‐cell counts. Results Two macaques with M3M4 genotype exhibited the lowest peak …
Background
Understanding natural HIV control may lead to new preventative or therapeutic strategies. Several protective major histocompatibility complex (MHC) genotypes were found in humans and rhesus macaques. Here, we report a simian immunodeficiency virus (SIV) controller MHC genotype in Mauritian cynomolgus macaques (MCMs).
Methods
Twelve MHC‐genotyped MCMs were infected with SIVmac251 and monitored for viral loads and CD4+ T‐cell counts.
Results
Two macaques with M3M4 genotype exhibited the lowest peak viral loads (log plasma SIV RNA copies/mL), nearly 3 logs lower than those in most macaques with other MHC haplotype combinations, and set point viral loads below the level of detection limit by RT‐qPCR (<2 log RNA copies/mL). They maintained healthy CD4+ T‐cell counts of >500 cells/μL blood, while CD4 counts in the vast majority of other macaques were below this level.
Conclusions
The M3M4 MHC genotype may confer enhanced control of SIV replication in MCMs.
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