alexa Natural Killer Cell Subsets Distribution in Spontaneously Resolved and ChronicPersistent Hepatitis C Virus Infection | OMICS International | Abstract
ISSN: 2155-9899

Journal of Clinical & Cellular Immunology
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Research Article

Natural Killer Cell Subsets Distribution in Spontaneously Resolved and ChronicPersistent Hepatitis C Virus Infection

Laila M Al Kady1, Marwa A Mansour1*, Samaa T Gobran1 and Ebtesam I Ahmad2

1Medical Microbiology and Immunology Department, Faculty of Medicine, Zagazig University, Egypt

2Clinical Pathology, Faculty of Medicine, Zagazig University, Egypt

*Corresponding Author:
Marwa Abd El Azim Mansour
Associate Professor of Medical Microbiology and Immunology
Faculty of Medicine, Zagazig University, Egypt
E-mail: [email protected]

Received date: March 29, 2017; Accepted date: May 09, 2017; Published date: May 22, 2017

Citation: Kady LMA, Mansour MA, Gobran ST, Ahmad EI (2017) Natural Killer Cell Subsets Distribution in Spontaneously Resolved and Chronic Persistent Hepatitis C Virus Infection. J Clin Cell Immunol 8:504. doi: 10.4172/2155-9899.1000504

Copyright: © 2017 Kady LMA, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Abstract

Altered frequency and distribution of natural killer cell subsets have been reported in hepatitis C virus (HCV) infection.We investigated the frequency of NK cells and inhibitory receptor CD158 in a sample of Egyptian patients with spontaneously resolved (SR) and chronic persistent hepatitis C virus (CPHC) infection, and correlated data with other clinical and diagnostic parameters. The study was conducted on 48 patients divided into 3 groups. Group I; 16 CPHC patients, Group II; 16 SR individuals and Group III; 16 healthy controls. Chronic persistent HCV patients and SR individual’s data were reported from patients ' reports. Healthy controls serum antibodies against HCV were measured using ELISA technique. The three studied groups fresh peripheral blood samples were analyzed by flow cytometry to determine total NK cells, their subsets and CD158b+ cells percentages. Total NK cells and CD56+dim CD16+ NK cells were significantly decreased in CPHC patients and SR individuals in comparison to healthy controls(P<0.001).In contrast, CD56+bright CD16− NK cells were significantly increased in CPHC patients and reduced in SR individuals in comparison with healthy controls (P<0.001). Significant elevation of CD158b inhibitory receptor frequency in CPHC patients in comparison with healthy controls (P<0.001) and it was positively correlated with stage of cirrhosis, unresponsiveness to IFN, WBCs and lymphocytes counts and AST and ALT levels. In conclusion, during the chronic HCV infection stage, the frequency of NK cells is significantly depressed and CD158b+ inhibitory receptor might be represent this impairment. On the other hand, in SR individuals, total NK cells were significantly decreased. Also, CD56+dim CD16+ NK cells and CD56+bright CD16− NK cells percentages were significantly decreased (P<0.001) although preserving nearly the same ratio of healthy controls. Also, there was no significant elevation in CD158b+ cells frequency (P>0.05).

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