Abstract：
:Systemic Sclerosis (SSc) is an autoimmune disease characterized by fibrosis and vasculopathy. A key feature is the presence of T cells in inflammatory lesions. To establish the differences in peripheral blood T helper (Th) subpopulations in diffuse cutaneous (dc) and limited cutaneous (lc) SSc patients, blood samples from 57 dcSSc and 78 lcSSc patients were obtained. Controls were collected from healthy volunteers (n = 16), active systemic lupus erythematosus (aSLE) patients (n = 13), and active rheumatoid arthritis (aRA) patients (n = 12). Mononuclear cells were analyzed by flow cytometry to determine Th1 (CD4+/IFN-γ+), Th2 (CD4+/IL-4+), Th17 (CD4+/IL-17+), and regulatory T cells (Tregs; CD4+/CD25+/Foxp3+) subsets. Th17 and Th1 subsets were increased in SSc groups versus healthy controls (P < 0.001) and aSLE patients (P < 0.001 for Th17 and P < 0.008 for Th1). Th2 cells were higher in dcSSc patients than in the healthy and aSLE groups (P = 0.03 and P = 0.009, respectively). Tregs were increased in the aRA group when compared with SSc patients and healthy controls (P ≤ 0.003). Patients with immunosuppressive treatment had lower numbers of Th17 and Th2 cells (P = 0.02). Our results shed further light into the preponderant role of Th17 and Th1 in patients with SSc. However, these findings certainly deserve to be studied in depth.
journal_name
Rheumatol Intjournal_title
Rheumatology internationalauthors
Rodríguez-Reyna TS,Furuzawa-Carballeda J,Cabiedes J,Fajardo-Hermosillo LD,Martínez-Reyes C,Díaz-Zamudio M,Llorente Ldoi
10.1007/s00296-011-2056-ysubject
Has Abstractpub_date
2012-09-01 00:00:00pages
2653-60issue
9eissn
0172-8172issn
1437-160Xjournal_volume
32pub_type
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