Transcriptional profiles of TGF-beta superfamily members in the lumbar DRGs and the effects of activins A and C on inflammatory pain in rats

文献类型： 外文期刊

第一作者： Zhang, Feng-Ming

作者： Zhang, Feng-Ming;Wang, Bing;Zhang, Ying-Ying;Liu, Xing-Jun;Zhang, Feng-Ming;Zhang, Feng-Ming;Chen, Hao-Hao;Jiang, Zuo-Jie;Zeng, Mei-Xing;Liu, Xing-Jun;Hu, Han

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关键词： TGF-beta superfamily; Gene expression; Dorsal root ganglion; Chronic inflammatory pain; Activin

期刊名称：JOURNAL OF PHYSIOLOGY AND BIOCHEMISTRY （ 影响因子：3.4； 五年影响因子：3.9 ）

ISSN： 1138-7548

年卷期： 2023 年 79 卷 2 期

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收录情况： SCI

摘要： Signaling by the transforming growth factor (TGF)-beta superfamily is necessary for proper neural development and is involved in pain processing under both physiological and pathological conditions. Sensory neurons that reside in the dorsal root ganglia (DRGs) initially begin to perceive noxious signaling from their innervating peripheral target tissues and further convey pain signaling to the central nervous system. However, the transcriptional profile of the TGF-beta superfamily members in DRGs during chronic inflammatory pain remains elusive. We developed a custom microarray to screen for transcriptional changes in members of the TGF-beta superfamily in lumbar DRGs of rats with chronic inflammatory pain and found that the transcription of the TGF-beta superfamily members tends to be downregulated. Among them, signaling of the activin/inhibin and bone morphogenetic protein/growth and differentiation factor (BMP/GDF) families dramatically decreased. In addition, peripherally pre-local administration of activins A and C worsened formalin-induced acute inflammatory pain, whereas activin C, but not activin A, improved formalin-induced persistent inflammatory pain by inhibiting the activation of astrocytes. This is the first report of the TGF-beta superfamily transcriptional profiles in lumbar DRGs under chronic inflammatory pain conditions, in which transcriptional changes in cytokines or pathway components were found to contribute to, or be involved in, inflammatory pain processing. Our data will provide more targets for pain research.

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