title: Evaluation of CD4+CD25+FOXP3+ regulatory T cells function in patients with common variable immunodeficiency.
abstract: Common variable immunodeficiency (CVID) is one of the predominant antibody disorders where abnormalities in regulatory T cells (Tregs) may result in autoimmunity and chronic inflammation. To evaluate Tegs frequency and function, 13 CVID patients and 10 age- and sex-matched healthy volunteer were enrolled. The percentages of Tregs were calculated using flow cytomety method. For assessment of Treg function, Tregs were isolated and their suppressive functions were determined using Tregs suppression assay. The levels of immunoregulatory cytokines IL-10 and TGF-β produced by Tregs were also measured. Our results revealed that Tregs frequency (P<0.001) and their suppressive functions (P<0.001) were impaired in CVID patients. The level of TGF-β did not differ between CVID patients and controls (p=0.09); while the amount of IL-10 was remarkably decreased in CVID patients (P=0.007). Our findings suggest that disturbed Tregs frequency and their functional characteristics might account for aberrant immune responses observed in CVID patients.
authors.affiliation: Department of Immunology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.
authors.forename: Nargess
authors.initials: N
authors.lastname: Arandi
authors.forename: Abbas
authors.initials: A
authors.lastname: Mirshafiey
authors.forename: Mahmood
authors.initials: M
authors.lastname: Jeddi-Tehrani
authors.forename: Hassan
authors.initials: H
authors.lastname: Abolhassani
authors.forename: Bamdad
authors.initials: B
authors.lastname: Sadeghi
authors.forename: Babak
authors.initials: B
authors.lastname: Mirminachi
authors.forename: Mohammadreza
authors.initials: M
authors.lastname: Shaghaghi
authors.forename: Asghar
authors.initials: A
authors.lastname: Aghamohammadi
mesh_terms: D000293:Adolescent; D000328:Adult; D017074:Common Variable Immunodeficiency / Q000276:immunology* / Q000378:metabolism / Q000473:pathology; D005260:Female; D051858:Forkhead Transcription Factors / Q000276:immunology / Q000378:metabolism; D006801:Humans; D016753:Interleukin-10 / Q000276:immunology* / Q000378:metabolism; D053645:Interleukin-2 Receptor alpha Subunit / Q000276:immunology / Q000378:metabolism; D016015:Logistic Models; D018655:Lymphocyte Count; D008297:Male; D050378:T-Lymphocytes, Regulatory / Q000276:immunology* / Q000378:metabolism / Q000473:pathology; D016212:Transforming Growth Factor beta / Q000276:immunology* / Q000378:metabolism; D055815:Young Adult
chemical_list: C418974:FOXP3 protein, human; D051858:Forkhead Transcription Factors; D053645:Interleukin-2 Receptor alpha Subunit; D016212:Transforming Growth Factor beta; D016753:Interleukin-10