Isfahan University of Medical Sciences

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High Frequency of Tc22 and Th22 Cells in Myasthenia Gravis Patients and Their Significant Reduction After Thymectomy Publisher Pubmed

Summary: Th22 & Tc22 cells elevated in MG patients, reduced post-thymectomy, indicating a role in MG pathogenesis. #MyastheniaGravis #TCells

Robatjazi B1 ; Hosseini M1 ; Shaygannejad V2 ; Nafissi S3 ; Rezaei A1 ; Mansourain M4 ; Mirmosayyeb O5 ; Esmaeil N1
Authors

Source: NeuroImmunoModulation Published:2018


Abstract

Objectives: Myasthenia gravis (MG) is an autoimmune disease accompanied by a thymic pathology and in most patients thymectomy (TE) is used as the therapeutic approach. Both B and T cells play an important role in MG pathogenesis. Methods: Twelve pre-and post-TE MG patients and 12 healthy controls (HCs) were enrolled. The mean percentages of Th22 and Tc22 cells were evaluated in MG patients (before and 6 months after TE) and HCs. Results: The mean percentage of Tc22 cells in pre-TE patients was significantly higher than in HCs (p < 0.05), and after TE Tc22 cells significantly decreased compared to pre-TE (p < 0.05). The frequency of Th22 cells in pre-TE MG patients was not significantly different from HCs, but after TE Th22 cells were significantly decreased compared to pre-TE (p < 0.05). Conclusion: Our findings suggest a possible role of Th22 and Tc22 in MG pathogenesis. © 2018 S. Karger AG, Basel. All rights reserved.