Pooled peripheral blood mononuclear cells provide an optimized cellular substrate for human immunodeficiency virus Type 1 isolation during acute infection

Transfusion ◽  
2010 ◽  
Vol 51 (2) ◽  
pp. 333-337 ◽  
Author(s):  
Christopher Lai-Hipp ◽  
Tiffany Goldberg ◽  
Edward Scott ◽  
Alyssa Ziman ◽  
Girish Vyas
2005 ◽  
Vol 79 (14) ◽  
pp. 8979-8990 ◽  
Author(s):  
Kevin K. Ariën ◽  
Awet Abraha ◽  
Miguel E. Quiñones-Mateu ◽  
Luc Kestens ◽  
Guido Vanham ◽  
...  

ABSTRACT The main (M) group of human immunodeficiency virus type 1 (HIV-1) is responsible for the global AIDS epidemic while HIV-1 group O (outlier) and HIV type 2 are endemic only in west and central Africa. The failure of HIV-2 and especially HIV-1 group O to spread following the initial zoonotic jumps is not well understood. This study was designed to examine the relative replicative capacities between these human lentiviruses. A pairwise competition experiment was performed with peripheral blood mononuclear cells with eight HIV-2 isolates, 6 group O viruses, and 15 group M viruses of subtype A (2 viruses), B (5 viruses), C (4 viruses), D (2 viruses) and CRF01_AE (2 viruses). HIV-1 group M isolates of any subtype were typically 100-fold-more fit than group O or HIV-2 strains when competed in peripheral blood mononuclear cells from various humans. This order in replicative fitness was also observed when virus pairs were added to human dendritic cells and then cocultured with primary, quiescent T cells, which is the model for HIV-1 transmission. These results suggest that reduced replicative and transmission fitness may be contributing to the low prevalence and limited geographical spread of HIV-2 and group O HIV-1 in the human population.


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