Immunopotentiator thymosin alpha-1 attenuates inflammatory pain by modulating the Wnt3a/β-catenin pathway in spinal cord.
Huang. Jiahua J; Jiang. Huaqing H; Pan. Meijun M; Jiang. Yanjun Y; Xie. Lijin L
Key Findings
- Thymosin‑alpha‑1 lessened mechanical and heat pain in a CFA‑induced inflammation model
- It lowered levels of IFN‑γ, TNF‑α and BDNF, which are linked to pain and inflammation
- It reversed activation of the Wnt3a/β‑catenin pathway in the spinal cord, a pathway tied to pain hypersensitivity
Practical Outcomes
- The data hint that thymosin‑alpha‑1 might help manage inflammatory pain, but the work is only in animals and no human dosing or safety info is provided. Biohackers should view this as early‑stage evidence and wait for clinical trials before considering it for personal use, and always consult a healthcare professional.
Summary
In a mouse study, the immune‑boosting peptide thymosin‑alpha‑1 reduced pain caused by inflammation, likely by lowering inflammatory chemicals and blocking a pain‑related signaling pathway in the spinal cord.
Abstract
The mechanism of inflammatory pain involves the central nervous system (CNS) and the immune system. It is reported that immunopotentiator thymosin alpha-1 (Tα1) can reduce inflammation, protect neurons and strengthen the immune function. However, the roles of Tα1 in inflammatory pain still remain unclear. In this study, we found Tα1 can attenuate the complete Freund's adjuvant (CFA)-induced mechanical allodynia and heat hyperalgesia. Meanwhile, it reduced the upregulation of CFA-induced inflammatory mediators (interferon (IFN)-γ, tumor necrosis factor-α and brain-derived neurotrophic factor). In addition, we found the Wnt3a/β-catenin pathway was activated in spinal cord after the injection of CFA, paralleling with pain hypersensitivity. However, Tα1 reversed this status. In summary, Tα1 could attenuate inflammatory pain by modulating the Wnt3a/β-catenin pathway. It might be related to the downregulation of inflammatory mediators.
Study Information
pubmed
2020
2020-01-08T00:00:00.000Z
10.1097/wnr.0000000000001370