脊髓质细胞衍生出的额外垂体前素有助于女性的术后疼痛
Mayur J Patil1,2, Sergei Belugin1, Michael Henry1
1Department of Endodontics, University of Texas Health Science Center at San Antonio, San Antonio, TX, United States.
Frontiers in aging neuroscience
|February 19, 2026
概括
额外垂体前素 (PRL),而不是垂体PRL,驱动女性疼痛敏感性. 脊柱星球细胞释放这种促进疼痛的PRL,为治疗女性手术后和炎症性疼痛提供了标.
科学领域:
- 神经科学是一个神经科学.
- 内分泌学 在内分泌学.
- 疼痛研究 疼痛研究
背景情况:
- 益生素 (PRL) 受体 (PRLR) 信号影响疼痛,特别是在女性身上.
- 参与疼痛的PRL的起源 (垂体与外垂体) 仍然不清楚.
研究的目的:
- 在女性疼痛调节中区分垂体衍生的PRL (PRLpit) 和外垂体PRL (PRLext) 的作用.
- 为了识别导致疼痛过敏的PRLext的细胞来源.
主要方法:
- 使用STAT5酸化 (pSTAT5) 作为PRLR激活的标志物.
- 使用免疫组织化学 (IHC) 来检测PRLext表达.
- 服用PRLR抗剂 (ΔPRL) 并进行了低血压切除/勃罗莫克里普丁治疗.
- 使用GLAST+细胞在GLASTcre-ER/-/DTAfl/-小鼠中的遗传切除.
主要成果:
- 在DRG神经元中,后腿切口诱导的pSTAT5主要依赖于PRL.
- 在切口后,PRL被诱导到外周神经,表皮,DRG神经元和脊髓星球细胞 (一些GLAST) 中.
- PRLpit封锁没有显著影响切口或IL-6诱导的过敏.
- 在女性中,ΔPRL逆转了术后过敏症,并减少了DRG pSTAT5.
- 脊柱GLAST+细胞的切除减弱了女性的过敏性,但没有影响男性,而ΔPRL没有进一步的影响.
结论:
- 额外垂体PRL,特别是来自脊柱GLAST+星体细胞,是女性选择性术后和炎症疼痛的关键调解者.
- 在DRG神经元中的PRLext信号有助于疼痛过敏.
- 准脊柱PRL可以提供特定于性别的疼痛管理策略.
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