Pongratz, Georg and Melzer, Madlen and Straub, Rainer H. (2012) The sympathetic nervous system stimulates anti-inflammatory B cells in collagen-type II-induced arthritis. ANNALS OF THE RHEUMATIC DISEASES, 71 (3). pp. 432-439. ISSN 0003-4967,
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Background As previously shown, the sympathetic nervous system (SNS) shows proinflammatory activity during initiation of arthritis but is anti-inflammatory in established collagen-induced arthritis (CIA). Interleukin 10 (IL-10)-producing B cells suppress arthritis and are a potential target of the SNS because (1) B cells express functional beta(2)-adrenoceptors (beta(2)ARs) and (2) IL-10, at least in monocytes/macrophages, is regulated in a cAMP/PKA/CREB-dependent manner. Objective To test the hypothesis that anti-inflammatory effects of the SNS in CIA are mediated by stimulating IL-10-producing anti-inflammatory B cells. Methods Collagen-induced arthritis in DBA/1 mice, sympathectomy, adoptive B cell transfer, in vitro B cell culture, and assessment of B cell IL-10 production. Results and conclusion Mice treated with B cells from SNS-intact mice showed less severe arthritis than mice treated with B cells from sympathectomised mice. This anti-inflammatory action of B cells from SNS-intact mice correlated with increased IL-10 produced by B cells, which was mediated by norepinephrine (NE), in a beta(2)AR, PKA-dependent manner. However, an NE-mediated increase in IL-10 was seen only in B cells from immunised but not naive mice, explaining in part the anti-inflammatory properties of the SNS in the late phase of arthritis. Finally, animals treated with B cells isolated from immunised mice and activated in vitro in the presence of a beta(2)AR stimulus showed a decrease in arthritis severity in comparison with controls, an approach that might be used for future cellular treatment strategies.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | COUPLED RECEPTOR KINASES; RHEUMATOID-ARTHRITIS; T-CELLS; INTERLEUKIN-10; IL-10; ACTIVATION; EXPRESSION; CYTOKINE; |
| Subjects: | 600 Technology > 610 Medical sciences Medicine |
| Divisions: | Medicine > Lehrstuhl für Innere Medizin I |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 19 May 2020 06:26 |
| Last Modified: | 19 May 2020 06:26 |
| URI: | https://pred.uni-regensburg.de/id/eprint/19201 |
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