EVALUATION OF EXPRESSION RATE OF CHEMOKINES RECEPTOR CCR5 ON PERIPHERAL BLOOD CD8+ T CELLS OF OCCULT HEPATITIS B INFECTED PATIENTS

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KAZEMI ARABABADI M.; POURFATH ELAH A.A.; JAFARZADEH ABD ELAH; HASANSHAHI GH.H.; MOHIT MARYAM; HAJGHANI M.; SHAMSIZADEH ALI

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Journal: Journal of Mazandaran University of Medical Sciences Year:2009 | Volume:18 | Issue:68 Page(s): 11-18

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Title

EVALUATION OF EXPRESSION RATE OF CHEMOKINES RECEPTOR CCR5 ON PERIPHERAL BLOOD CD8+ T CELLS OF OCCULT HEPATITIS B INFECTED PATIENTS

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Keywords

OCCULT HEPATITIS B INFECTIONQ3

CCR5Q3

CD8+ T CELLSQ3

HBSAGQ3

HBV-DNAQ3

Abstract

Background and purpose: OCCULT HEPATITIS B INFECTION (OBI) is defined as a form of hepatitis B that despite absence of detectable HBSAG, HBV-DNA is present in patient’s peripheral blood. Genetic and immunological differences appear to play important roles in producing OBI. Therefore, this project was aimed to examine the expression of a chemokine receptor (CCR5) on CD8+ T cells of OBI patients.Materials and methods: In this experimental study, 3,700 HBSAG- plasma samples were collected. Samples were tested for anti-HBc antibody and all of HBSAG-/anti-HBc+ samples were screened for HBV-DNA by PCR. HBV-DNA positive samples were assigned as OBI cases. Also, flow cytometry analysis was performed to examine the expression of CCR5 on CD8+ T cells of OBI patients.Results: Results of current study showed that 352 (9.5%) cases of samples were positive for anti-HBc+. Examination of HBSAG-/anti-HBc+ samples for HBV-DNA by PCR showed that 57 (16.1%) cases had HBV-DNA. Flow cytometric studies indicated lymphocytosis in these patients; however, the number of cells which expressed CD8+ and CCR5 is decreased significantly in patients, compared to healthy control. In addition to CD8+ T cells, the expression of CCR5 is also decreased on all immune cells.Conclusion: One of the chemokine receptors which are expressed by CD8+ T cells is CCR5 and these cells are recruited to infected tissues, including liver by CCR5. Therefore, based on results of this investigation, one may conclude that due to the decreased expression of CCR5, the CD8+ T cells are unable to respond to the chemokines (CCR5 ligands) and, hence, cannot immigrate to the infected liver and incorporate in clearance of hepatitis B virus.

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APA: Copy

KAZEMI ARABABADI, M., POURFATH ELAH, A.A., JAFARZADEH, ABD ELAH, HASANSHAHI, GH.H., MOHIT, MARYAM, HAJGHANI, M., & SHAMSIZADEH, ALI. (2009). EVALUATION OF EXPRESSION RATE OF CHEMOKINES RECEPTOR CCR5 ON PERIPHERAL BLOOD CD8⁺ T CELLS OF OCCULT HEPATITIS B INFECTED PATIENTS. JOURNAL OF MAZANDARAN UNIVERSITY OF MEDICAL SCIENCES, 18(68), 11-18. SID. https://sid.ir/paper/45717/en

Vancouver: Copy

KAZEMI ARABABADI M., POURFATH ELAH A.A., JAFARZADEH ABD ELAH, HASANSHAHI GH.H., MOHIT MARYAM, HAJGHANI M., SHAMSIZADEH ALI. EVALUATION OF EXPRESSION RATE OF CHEMOKINES RECEPTOR CCR5 ON PERIPHERAL BLOOD CD8⁺ T CELLS OF OCCULT HEPATITIS B INFECTED PATIENTS. JOURNAL OF MAZANDARAN UNIVERSITY OF MEDICAL SCIENCES[Internet]. 2009;18(68):11-18. Available from: https://sid.ir/paper/45717/en

IEEE: Copy

M. KAZEMI ARABABADI, A.A. POURFATH ELAH, ABD ELAH JAFARZADEH, GH.H. HASANSHAHI, MARYAM MOHIT, M. HAJGHANI, and ALI SHAMSIZADEH, “EVALUATION OF EXPRESSION RATE OF CHEMOKINES RECEPTOR CCR5 ON PERIPHERAL BLOOD CD8⁺ T CELLS OF OCCULT HEPATITIS B INFECTED PATIENTS,” JOURNAL OF MAZANDARAN UNIVERSITY OF MEDICAL SCIENCES, vol. 18, no. 68, pp. 11–18, 2009, [Online]. Available: https://sid.ir/paper/45717/en

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