Document Type : Original Article (s)
                            
                        
                                                    Authors
                            
                                                            
                                                                            1
                                                                        MSc Student, Department of Immunology, School of Medicine AND Student Research Committee, Isfahan University of Medical Sciences, Isfahan, Iran                                
                                                            
                                                                            2
                                                                        Assistant Professor, Department of Immunology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran                                
                                                            
                                                                            3
                                                                        Associate Professor, Infectious Diseases and Tropical Medicine Research Center AND Acquired Immunodeficiency Research Center, Isfahan University of Medical Sciences, Isfahan, Iran                                
                                                            
                                                                            4
                                                                        Associate Professor, Department of Immunology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran                                
                                                            
                                                                            5
                                                                        Associate Professor, Department of Biostatistics and Epidemiology, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran                                
                            
                                                
                        
                            Abstract
                            Background: Producing IL-17, Th17 cells induce BAFF and APRIL, two important mediators for B-cell survival and activation. Common variable immunodeficiency (CVID) is a group of many primary immunodeficiency diseases with a common set of features (including hypo-gammaglobulinemia) and different underlying causes. The prevalence of CVID is 1 to 50,000. Hence, the aim of this study was to measure IL-17 gene expression in peripheral blood of patients with CVID.Methods: Total mRNA extracted from whole blood samples of 10 patients with CVID and 10 normal controls; then, IL-17 gene was measured using qRT-PCR.Findings: There was a slight decrease in transcript levels of IL-17 in patients with CVID, even though, it was not statistically significant (P = 0.195).Conclusion: We showed that IL-17 is decreased in patients with CVID and this could be an explanation for their humoral immunity response insufficiencies. Absence of statistical significance in this IL-17 reduction may be due to our sample size and increasing the number of samples may result in statistical significance of this in future studies.
                        
                        
                        
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