Diagnostic value of P2X7 receptor and its role in inflammatory reaction in rheumatoid arthritis.
10.12122/j.issn.1673-4254.2018.12.09
- Author:
Yonghe CHEN
1
;
Baochang SU
2
;
Mengqiao SHANG
3
Author Information
1. Xintang Hospital of Zengcheng District, Guangzhou 511340, China.
2. Affiliated Hospital of Jinan University, Guangzhou 510000, China.
3. Third Affiliated Hospital of Guangzhou Medical University, Guangzhou 510150, China.
- Publication Type:Journal Article
- Keywords:
P2X7 receptor;
inflammatory factor;
rheumatic arthritis
- MeSH:
Arthritis, Rheumatoid;
diagnosis;
physiopathology;
Case-Control Studies;
Cell Line;
Gene Knockdown Techniques;
Humans;
Inflammation;
metabolism;
Interleukin-1beta;
metabolism;
Interleukin-6;
metabolism;
Interleukin-8;
metabolism;
Purinergic P2X Receptor Antagonists;
RNA, Messenger;
metabolism;
Receptors, Purinergic P2X7;
physiology;
Synovial Membrane;
metabolism
- From:
Journal of Southern Medical University
2018;38(12):1453-1458
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVE:To study the diagnostic value of P2X7 receptor for rheumatoid arthritis (RA) and its role in the inflammatory response.
METHODS:With the synovial tissues from 25 patients with bone and joint replacement as the control,the synovial tissues of 25 RA patients were examined for the relative expression of P2X7 receptor mRNA using qRT-PCR.In an immortalized RA synovial cell line (MH7A),the effect of P2X7 receptor knockdown via a small interfering RNA were examined on the productions of the inflammatory cytokines including interleukin-1β(IL-1β),IL-6,and IL-8 using ELISA.
RESULTS:The RA patients showed significantly higher levels of P2X7 receptor mRNA expression in the synovial tissue than the control patients.P2X7 receptor had a good diagnostic value for RA.The expression levels of IL-1β,IL-6,and IL-8 were positively correlated with the levels of P2X7 receptor in the synovial tissues of RA patients (<0.001).In MH7A cells,P2X7 receptor knockdown obviously reduced the secretion of IL-1β and IL-6.
CONCLUSIONS:RA patients show elevated P2X7 receptor level in the synovial tissue, which has a good diagnostic value for RA.Blocking P2X7 receptor can inhibit inflammatory factor secretion and suppress inflammatory reactions.
