The DC-SIGNR 7/5 genotype is associated with high dendritic cell counts and their subsets in patients infected with HIV-1.

Abstract:

PURPOSE:The aim of this study was to assess peripheral blood dendritic cell (DC) frequencies and Dendritic Cell-specific intracellular adhesion molecule 3 grabbing non-integrin related (DC-SIGNR) genotyping in healthy individuals, injecting drug users and HIV-1 infected individuals and correlate with different clinical parameters from north India. METHODS:Blood from 30 seronegative healthy individuals, 30 injecting drug users, and 30 patients infected with HIV-1 from North India were collected. Peripheral blood DC frequencies were determined by flow cytometry and repeat region polymorphism in DC-SIGNR was performed by PCR. RESULTS:There was a significantly lower number of DCs and their subsets in patients infected with HIV-1 compared to injecting drug users and healthy individuals. A significant positive correlation of DCs and their subsets with CD4(+) T cells and negative correlation with HIV-1 viral load was found. A salient finding of this study was the association of the heterozygous 7/5 DC-SIGNR genotypes with higher percentage of DCs and their subsets and higher CD4(+) T cell counts and lower viral load compared to the homozygous 7/7 DC-SIGNR genotypes in patients infected with HIV-1. CONCLUSIONS:This is the first study to assess the DC subsets and its association with DC-SIGNR polymorphism in injecting drug users and HIV-1 infected patients and suggests the protective role of 7/5 DC-SIGNR genotypes in HIV-1 infection.

journal_name

J Clin Immunol

authors

Chaudhary O,Bala M,Singh J,Hazarika A,Kumar R,Luthra K

doi

10.1007/s10875-013-9868-3

subject

Has Abstract

pub_date

2013-05-01 00:00:00

pages

788-97

issue

4

eissn

0271-9142

issn

1573-2592

journal_volume

33

pub_type

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