Impaired natural killer cell‐induced antibody‐dependent cell‐mediated cytotoxicity is associated with human immunodeficiency virus‐1 disease progression

Summary This study evaluates the correlation between natural killer (NK) cell function and human immunodeficiency virus (HIV)‐1 disease progression in 133 untreated HIV‐1 positive Chinese subjects, including 41 former plasma donors (FPDs) and 92 men who have sex with men, and 35 HIV‐negative control...

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Vydáno v:	Clinical and experimental immunology Ročník 171; číslo 1; s. 107 - 116
Hlavní autoři:	Jia, M., Li, D., He, X., Zhao, Y., Peng, H., Ma, P., Hong, K., Liang, H., Shao, Y.
Médium:	Journal Article
Jazyk:	angličtina
Vydáno:	Oxford Blackwell 01.01.2013 Oxford University Press Blackwell Science Inc
Témata:	Adult Analytical, structural and metabolic biochemistry Antibody-Dependent Cell Cytotoxicity - genetics Antibody-Dependent Cell Cytotoxicity - immunology Antibody-dependent cell-mediated cytotoxicity Asian Continental Ancestry Group - genetics Biological and medical sciences CD16 antigen CD4 antigen CD4 Lymphocyte Count CD56 Antigen - analysis CD56 Antigen - immunology Disease Progression Female Flow cytometry Fundamental and applied biological sciences. Psychology Genotyping GPI-Linked Proteins - analysis GPI-Linked Proteins - immunology Haplotypes Histocompatibility antigen HLA HIV Infections - genetics HIV Infections - immunology HIV-1 - immunology HLA Antigens - genetics HLA Antigens - immunology Human immunodeficiency virus 1 human immunodeficiency virus type 1 human leucocyte antigen class I Human viral diseases Humans Immunodeficiencies Immunodeficiencies. Immunoglobulinopathies Immunodeficiency Immunopathology Infection Infectious diseases Killer Cells, Natural - immunology Leukocytes Male Medical sciences Middle Aged Natural killer cells NK Cell Lectin-Like Receptor Subfamily C - analysis NK Cell Lectin-Like Receptor Subfamily C - immunology NKG2 antigen Original receptors Receptors, IgG - analysis Receptors, IgG - immunology Receptors, KIR2DL1 - analysis Receptors, KIR2DL1 - immunology Sex Viral diseases Viral diseases of the lymphoid tissue and the blood. Aids Viral Load - immunology Immunopathology HLA-System Immune response HIV-1 virus receptors antibody-dependent cell-mediated cytotoxicity Retroviridae AIDS Biochemistry Immune deficiency Lentivirus Infection Virus Natural killer cell Associated virus human immunodeficiency virus type 1 natural killer cells Association Viral disease Antibody-dependent cell cytotoxicity Human immunodeficiency virus human leucocyte antigen class I Biological receptor
ISSN:	0009-9104, 1365-2249, 1365-2249
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Shrnutí:	Summary This study evaluates the correlation between natural killer (NK) cell function and human immunodeficiency virus (HIV)‐1 disease progression in 133 untreated HIV‐1 positive Chinese subjects, including 41 former plasma donors (FPDs) and 92 men who have sex with men, and 35 HIV‐negative controls. Flow cytometry was used to determine the abundance of NK cell subsets, the expression levels of receptor species, human leucocyte antigen (HLA) genotyping and the antibody‐dependent cell‐mediated cytotoxicity (ADCC) responses of NK cells. We observed a decreased expression of CD56dimCD16+ NK cell subsets and an increased expression of CD56−CD16+ with HIV‐1 infection. As well, the expression of activating and inhibitory receptors increased significantly in NK cells, but CD16 receptor levels and the NKG2A/NKG2C ratio were down‐regulated with HIV‐1 infection. ADCC responses were higher in elite controllers than in all other groups, and were correlated inversely with HIV‐1 viral load but correlated positively with CD4 count only in FPDs. Furthermore, individuals infected for < 1 year have lower ADCC responses than those infected for > 1 year. We also observed a negative association between ADCC responses and viral load in those who carry the HLA‐A30/B13/Cw*06 haplotype. The positive correlation between CD16 expression and ADCC responses and a negative correlation trend between CD158a and ADCC responses were also observed (P = 0·058). Our results showed that the ADCC response is associated with patients' disease status, receptor expression levels, infection time and specific HLA alleles, which indicates that ADCC may offer protective effects against HIV‐1 infection.
Bibliografie:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 14 content type line 23 ObjectType-Article-2 ObjectType-Feature-1
ISSN:	0009-9104 1365-2249 1365-2249
DOI:	10.1111/j.1365-2249.2012.04672.x