FGF1 improves functional recovery through inducing PRDX1 to regulate autophagy and anti‐ROS after spinal cord injury |
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| Authors: | Jiawei Li Qingqing Wang Hanxiao Cai Zili He Haoli Wang Jian Chen Zengming Zheng Jiayu Yin Zhiyong Liao Huazi Xu Jian Xiao Fanghua Gong |
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| Affiliation: | 1. The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China;2. School of Pharmacy, Wenzhou Medical University, Wenzhou, Zhejiang, China;3. School of Life and Environmental Science, Wenzhou University, Wenzhou, Zhejiang, China |
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| Abstract: | Fibroblast growth factor 1 (FGF1) is thought to exert protective and regenerative effects on neurons following spinal cord injury (SCI), although the mechanism of these effects is not well understood. The use of FGF1 as a therapeutic agent is limited by its lack of physicochemical stability and its limited capacity to cross the blood‐spinal cord barrier. Here, we demonstrated that overexpression of FGF1 in spinal cord following SCI significantly reduced tissue loss, protected neurons in the ventricornu, ameliorated pathological morphology of the lesion, dramatically improved tissue recovery via neuroprotection, and promoted axonal regeneration and remyelination both in vivo and in vivo. In addition, the autophagy and the expression levels of PRDX1 (an antioxidant protein) were induced by AAV‐FGF1 in PC12 cells after H2O2 treatment. Furthermore, the autophagy levels were not changed in PRDX1‐suppressing cells that were treated by AAV‐FGF1. Taken together, these results suggest that FGF1 improves functional recovery mainly through inducing PRDX1 expression to increase autophagy and anti‐ROS activity after SCI. |
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| Keywords: | autophagy fibroblast growth factor 1 functional recovery spinal cord injury |
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