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In Vitro Chromosomal Radiosensitivity in Patients With Common Variable Immunodeficiency Publisher



Mahmoodi M1, 2 ; Abolhassani H2 ; Mozdarani H3 ; Rezaei N2 ; Azizi G4 ; Yazdani R2 ; Farzanfar F1 ; Rafiemanesh H5 ; Mohagheghi MA1 ; Divsalar K6 ; Kalmarzi RN2 ; Ramyar A2 ; Aghamohammadi A2
Authors
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Authors Affiliations
  1. 1. Cancer Research Center, Cancer Institute, Tehran University of Medical Sciences, Tehran, Iran
  2. 2. Research Center for Immunodeficiencies, Children's Medical Center Hospital, Tehran University of Medical Sciences, 62 Qarib St., Tehran, 14194, Iran
  3. 3. Department of Medical Genetics, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
  4. 4. Non-Communicable Diseases Research Center, Alborz University of Medical Sciences, Karaj, Iran
  5. 5. School of Public Health, Shahid Beheshti University of Medical Sciences, Tehran, Iran
  6. 6. Neuroscience Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran

Source: Central European Journal of Immunology Published:2018


Abstract

Common variable immunodeficiency (CVID) is one of the predominant antibody deficiency disorders, some evidence of which indicates that chromosome instability is present in these patients. An increased risk of cancer in patients with CVID has been documented. This study was undertaken to highlight radiation sensitivity in CVID patients and to clarify the genetic basis of this defect in these cases. Stimulated lymphocytes of the studied subjects were exposed to low-dose gamma-rays in the G2 phase or the G0 phase of the cell cycle and chromosomal aberrations were scored. Lymphocytes of healthy individuals, ataxia telangiectasia (AT) cases and a group of acute lymphoblastic leukemia (ALL) patients were investigated in the same way as controls. By two methods of analysis (one-way ANOVA and unpaired t-test), the CVID cases were significantly more radiosensitive than healthy controls based on the results of the G2 and the G0 assays. First-degree relatives of CVID patients were radiosensitive by the micronucleus assay which showed a significant difference as compared with normal controls (p = 0.001). In conclusion, this study may support that chromosomal radiosensitivity in CVID patients is a marker of genetic predisposition to the disease. The results might be a clue to describe the increased risk of cancer in CVID patients. © 2018 Termedia Publishing House Ltd. All rights reserved.
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