| Autor: |
Zhonghua Liao, Jiale Tang, Liying Luo, Shuanglinzi Deng, Lisa Luo, Fangyuan Wang, Xiangning Yuan, Xinyue Hu, Juntao Feng, Xiaozhao Li |
| Jazyk: |
angličtina |
| Rok vydání: |
2021 |
| Předmět: |
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| Zdroj: |
Arthritis Research & Therapy, Vol 23, Iss 1, Pp 1-11 (2021) |
| Druh dokumentu: |
article |
| ISSN: |
1478-6362 |
| DOI: |
10.1186/s13075-021-02576-x |
| Popis: |
Abstract Background Effector memory T cells are pivotal effectors of adaptive immunity with enhanced migration characteristics and are involved in the pathogenesis of ANCA-associated vasculitis (AAV). The diversity of effector memory T cells in chemokine receptor expression has been well studied in proteinase 3 (PR3)-AAV. However, few studies have been conducted in myeloperoxidase (MPO)-AAV. Here, we characterized chemokine receptor expression on effector memory T cells from patients with active MPO-AAV. Methods Clinical data from newly diagnosed MPO-AAV patients and healthy subjects were collected and analyzed. Human peripheral blood mononuclear cells (PBMCs) isolated from patients with active MPO-AAV were analyzed by flow cytometry. The production of effector memory T cell-related chemokines in serum was assessed by ELISA. Results We observed decreased percentages of CD4+ and CD8+ T cells in the peripheral blood, accompanied by a significant decrease in CCR6-expressing T cells but an increase in CXCR3+ T cells, in active MPO-AAV. Furthermore, the decrease in CCR6 and increase in CXCR3 expression were mainly limited to effector memory T cells. Consistent with this finding, the serum level of CCL20 was increased. In addition, a decreasing trend in the TEM17 cell frequency, with concomitant increases in the frequencies of CD4+ TEM1 and CD4+ TEM17.1 cells, was observed when T cell functional subsets were defined by chemokine receptor expression. Moreover, the proportions of peripheral CD8+ T cells and CD4+ TEM subsets were correlated with renal prognosis and inflammatory markers. Conclusions Our data indicate that dysregulated chemokine receptor expression on CD4+ and CD8+ effector memory T cells and aberrant distribution of functional CD4+ T cell subsets in patients with active MPO-AAV have critical roles related to kidney survival. |
| Databáze: |
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| Externí odkaz: |
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