中国神经再生研究(英文版) ›› 2023, Vol. 18 ›› Issue (8): 1782-1788.doi: 10.4103/1673-5374.361534

• 原著:脊髓损伤修复保护与再生 • 上一篇    下一篇

光生物调节治疗脊髓损伤的潜在靶点和作用机制

  

  • 出版日期:2023-08-15 发布日期:2023-02-24
  • 基金资助:
    国家自然科学基金项目(81070996,81572151);陕西省重点研发计划项目(2020ZDLSF02-05,2021ZDLSF02-10)

Potential targets and mechanisms of photobiomodulation for spinal cord injury

Cheng Ju#, Yang-Guang Ma#, Xiao-Shuang Zuo#, Xuan-Kang Wang, Zhi-Wen Song, Zhi-Hao Zhang, Zhi-Jie Zhu, Xin Li, #br# Zhuo-Wen Liang, Tan Ding, Zhe Wang*, Xue-Yu Hu*#br#   

  1. Department of Orthopedics, Xijing Hospital, Fourth Military Medical University, Xi’an, Shaanxi Province, China
  • Online:2023-08-15 Published:2023-02-24
  • Contact: Xue-Yu Hu, MD, huxueyu@fmmu.edu.cn; Zhe Wang, MD, wangzhe@fmmu.edu.cn.
  • Supported by:
    This study was supported by the National Natural Science Foundation of China, Nos. 81070996 (to ZW), 81572151 (to XYH); and Shaanxi Provincial Key R&D Program, China, Nos. 2020ZDLSF02-05 (to ZW), 2021ZDLSF02-10 (to XYH).

摘要:

光生物调节,又称为低强度激光疗法,是一种经典的无创物理疗法,广泛用于多种疾病的治疗,具有良好的抗炎和组织修复效果。作者既往研究发现以810 nm低强度激光治疗可减少巨噬细胞的M1极化,促进运动功能的恢复;然而,这种抑制作用的机制尚不清楚。近年来,由于转录组测序分析对阐明疾病进展方面发挥了重要的作用,因此实验对诱导小鼠骨髓巨噬细胞行M1极化,并以低强度激光进行干预。转录组测序结果揭示了光生物调节调控巨噬细胞极化的差异基因表达谱,进一步GO富集和KEGG富集分析这些差异表达的基因,并构建了蛋白质-蛋白质相互作用网络和竞争性内源RNA网络。发现光生物调节可促进miR-330-5p的表达,从而抑制STAT3的表达;而miR-330-5p可与STAT3相互结合并抑制其表达;且诱导型一氧化氮合酶与STAT3表达变化趋势是一致。而后以光生物调节治疗脊髓挤压伤小鼠模型进行验证,证实光生物调节可减少诱导型一氧化氮合酶和STAT3的表达,并促进脊髓损伤小鼠运动功能的恢复。表明STAT3可能是光生物调节的潜在靶点,而miR-330-5p-STAT3通路是光生物调节发挥生物学功能的可能机制。

https://orcid.org/000-0003-0852-1196 (Xue-Yu Hu); https://orcid.org/0000-0002-7573-1583 (Zhe Wang)

关键词: RNA测序, 光生物调节, 脊髓损伤, 巨噬细胞, STAT3, miR-330-5p, 低强度激光治疗, 神经功能, 炎症信号通路, 竞争性内源性 RNA

Abstract: As a classic noninvasive physiotherapy, photobiomodulation, also known as low-level laser therapy, is widely used for the treatment of many diseases and has anti-inflammatory and tissue repair effects. Photobiomodulation has been shown to promote spinal cord injury repair. In our previous study, we found that 810 nm low-level laser therapy reduced the M1 polarization of macrophages and promoted motor function recovery. However, the mechanism underlying this inhibitory effect is not clear. In recent years, transcriptome sequencing analysis has played a critical role in elucidating the progression of diseases. Therefore, in this study, we performed M1 polarization on induced mouse bone marrow macrophages and applied low-level laser therapy. Our sequencing results showed the differential gene expression profile of photobiomodulation regulating macrophage polarization. We analyzed these genes using gene ontology and Kyoto Encyclopedia of Genes and Genomes enrichment analyses. Networks of protein-protein interactions and competing RNA endogenous networks were constructed. We found that photobiomodulation inhibited STAT3 expression through increasing the expression of miR-330-5p, and that miR-330-5p binding to STAT3 inhibited STAT3 expression. Inducible nitric oxide synthase showed trends in changes similar to the changes in STAT3 expression. Finally, we treated a mouse model of spinal cord injury using photobiomodulation and confirmed that photobiomodulation reduced inducible nitric oxide synthase and STAT3 expression and promoted motor function recovery in spinal cord injury mice. These findings suggest that STAT3 may be a potential target of photobiomodulation, and the miR-330-5p/STAT3 pathway is a possible mechanism by which photobiomodulation has its biological effects.

Key words: competing endogenous RNA, inflammatory pathway, low-level laser therapy, macrophage, miR-330-5p, neurological function, photobiomodulation, RNA-seq, spinal cord injury, STAT3