Publication Date:
2004-08-07
Description:
Natural killer (NK) cells provide a central defense against viral infection by using inhibitory and activation receptors for major histocompatibility complex class I molecules as a means of controlling their activity. We show that genes encoding the inhibitory NK cell receptor KIR2DL3 and its human leukocyte antigen C group 1 (HLA-C1) ligand directly influence resolution of hepatitis C virus (HCV) infection. This effect was observed in Caucasians and African Americans with expected low infectious doses of HCV but not in those with high-dose exposure, in whom the innate immune response is likely overwhelmed. The data strongly suggest that inhibitory NK cell interactions are important in determining antiviral immunity and that diminished inhibitory responses confer protection against HCV.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Khakoo, Salim I -- Thio, Chloe L -- Martin, Maureen P -- Brooks, Collin R -- Gao, Xiaojiang -- Astemborski, Jacquie -- Cheng, Jie -- Goedert, James J -- Vlahov, David -- Hilgartner, Margaret -- Cox, Steven -- Little, Ann-Margeret -- Alexander, Graeme J -- Cramp, Matthew E -- O'Brien, Stephen J -- Rosenberg, William M C -- Thomas, David L -- Carrington, Mary -- DA00441/DA/NIDA NIH HHS/ -- DA04334/DA/NIDA NIH HHS/ -- DA13324/DA/NIDA NIH HHS/ -- N01-CO-12400/CO/NCI NIH HHS/ -- N01-CP-01004/CP/NCI NIH HHS/ -- N01-CP-33002/CP/NCI NIH HHS/ -- N01-HD-4-3200/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 2004 Aug 6;305(5685):872-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Liver Group, Division of Infection, Inflammation, and Repair, Southampton University, Southampton 5016 6YD, UK. sik@soton.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15297676" target="_blank"〉PubMed〈/a〉
Keywords:
Adolescent
;
Adult
;
African Americans/genetics
;
Alleles
;
Blood Transfusion
;
Child
;
Cohort Studies
;
European Continental Ancestry Group/genetics
;
Female
;
HLA-C Antigens/*genetics/immunology/metabolism
;
Hepacivirus/immunology/physiology
;
Hepatitis C/genetics/*immunology/transmission/virology
;
Homozygote
;
Humans
;
Killer Cells, Natural/*immunology
;
Ligands
;
Male
;
Receptors, Immunologic/*genetics/metabolism
;
Receptors, KIR
;
Receptors, KIR2DL1
;
Receptors, KIR2DL3
;
Regression Analysis
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
