Natural Killer Cells Phenotype and Hepatitis C Virus Infection - El-Deeb, Somaya;Salama, Hosni;Elsayed, Asmaa
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During the early phases of a hepatitis C virus (HCV) infection, natural killer (NK) cells activation appears to be critical in the innate immune responses that have the potential of clearing the infection. Impaired activity of NK cells has been proposed as a mechanism contributing to viral persistence and chronic infection in HCV infection. We aim to assess the impact of HCV infections on NK cells regarding frequency, and subset distribution. The correlation between the phenotype of NK subsets and the various stages was assayed. Number of total NK cells was significantly reduced and a striking…mehr

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Produktbeschreibung
During the early phases of a hepatitis C virus (HCV) infection, natural killer (NK) cells activation appears to be critical in the innate immune responses that have the potential of clearing the infection. Impaired activity of NK cells has been proposed as a mechanism contributing to viral persistence and chronic infection in HCV infection. We aim to assess the impact of HCV infections on NK cells regarding frequency, and subset distribution. The correlation between the phenotype of NK subsets and the various stages was assayed. Number of total NK cells was significantly reduced and a striking shift in NK subsets, with a marked decrease in the CD56-dim cell fraction compared to CD56-bright cells was identified. The number of Nk cells bearing the inhibitory receptor CD158b(KIR) increased in HCV patients at advanced stages, whereas those bearing activating receptors CD314(NKG2D), CD161 were significantly reduced as compared to normal.
Autorenporträt
Prof. Dr. Somaya El-Deeb is a professor at the Faculty of Science,Cairo University. Prof.Dr. Hosni Salama is an acting professor at the Faculty of Medicine, Cairo University.Asmaa Elsayed is an M.Sc graduate of Cairo University. ElSayed is an Assistant Teacher at the Zoology Department, Faculty of Science, Cairo University.