期刊
JOURNAL OF NEUROIMMUNOLOGY
卷 345, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.jneuroim.2020.577279
关键词
MuSK antibody; Myasthenia gravis; T follicular helper cells; Tfh17 cells; Autoimmunity
资金
- National Institute of Neurological Disorders and Stroke of the National Institutes of Health [K23NS085049]
- Myasthenia Gravis Foundation of America
- National Natural Science Foundation Key International (Regional) Cooperation Research Project [81620108010]
A detailed understanding of the role of Tfh cells in MuSK-antibody positive myasthenia gravis (MuSK-MG) is lacking. We characterized phenotype and function of Tfh cells in MuSK-MG patients and controls. We found similar overall Tfh and follicular regulatory (Tfr) T cell frequencies in MuSK-MG and healthy controls, but MuSKMG patients exhibited higher frequencies of Tfhl 7 cells and a higher ratio of Tfh:Tfr cells. These results suggest imbalanced Tfh cell regulation, further supported by increased frequencies of CD4 T cells co-producing IL-21/IL-17 and IL-17/IFN-gamma, and increased Tfh-supported IgG production. These results support a role for Tfh cell dysregulation in MuSK-MG immunopathology.
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