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© Michaela Muller-Trutwin
HIV
Publication : Virology

High levels of SIVmnd-1 replication in chronically infected Mandrillus sphinx

Scientific Fields
Diseases
Organisms
Applications
Technique

Published in Virology - 05 Dec 2003

Pandrea I, Onanga R, Kornfeld C, Rouquet P, Bourry O, Clifford S, Telfer PT, Abernethy K, White LT, Ngari P, Müller-Trutwin M, Roques P, Marx PA, Simon F, Apetrei C

Link to Pubmed [PMID] – 14675630

Virology 2003 Dec;317(1):119-27

Viral loads were investigated in SIVmnd-1 chronically infected mandrills and the results were compared with those previously observed in other nonpathogenic natural SIV infections. Four naturally and 11 experimentally SIVmnd-1-infected mandrills from a semi-free-ranging colony were studied during the chronic phase of infection. Four SIVmnd-1-infected wild mandrills were also included for comparison. Twelve uninfected mandrills were used as controls. Viral loads in all chronically infected mandrills ranged from 10(5) to 9 x 10(5) copies/ml and antibody titers ranged from 200 to 14,400 and 200 to 12,800 for anti-V3 and anti-gp36, respectively. There were no differences between groups of wild and captive mandrills. Both parameters were stable during the follow-up, and no clinical signs of immune suppression were observed. Chronic SIVmnd-1-infected mandrills presented slight increases in CD20+ and CD28+/CD8+ cell counts, and a slight decrease in CD4+/CD3+ cell counts. A slight CD4+/CD3+ cell depletion was also observed in old uninfected controls. Similar to other nonpathogenic models of lentiviral infection, these results show a persistent high level of SIVmnd-1 replication during chronic infection of mandrills, with minimal effects on T cell subpopulations.

https://www.ncbi.nlm.nih.gov/pubmed/14675630