在成年小鼠中不同性别的淋巴体移植的功能整合 脑下垂体 淋巴体轴
bioRxiv : the preprint server for biology
|August 8, 2025
概括
这项研究探讨了将不同性别的性腺移植整合到小鼠的下丘脑-垂体-性腺轴中. 结果显示功能整合,支持未来在性别肯定护理和研究中的潜在应用.
科学领域:
- 内分泌学 在内分泌学.
- 生殖生物学 生殖生物学
- 神经内分泌学神经内分泌学
背景情况:
- 性别确认激素治疗 (GAHT) 使用外源激素来使身体特征与性别认同保持一致.
- 类固醇原生组织的移植为实现体现目标的荷尔蒙环境提供了一种替代方法.
研究的目的:
- 建立一个临床前模型,用于研究不同性别的淋巴体移植在成年小鼠下丘脑-垂体-淋巴体 (HPG) 轴中的功能整合.
- 评估性腺移植作为性别肯定护理的潜在未来战略的可行性.
主要方法:
- 成年雄性和雌性小鼠接受了淋巴切除术,并从基因匹配的不同性别幼获得了淋巴体植入物.
- 对照组接受了来自同性幼的生殖腺.
- 在六周的时间里,分析了 pituitary 和 hypothalamic 区域 (ARC,AVPV) 的激素水平 (gonadotropin 和类固醇) 和基因表达.
主要成果:
- 淋巴切除术导致HPG轴的可测量的脱.
- 移植性腺体建立了依赖性腺体的激素水平,表明功能整合.
- 组织学分析证实了在6周后移植性腺体中预期的类固醇生成和性腺生成.
- 下垂体,ARC和AVPV的mRNA表达表现出淋巴体和性别依赖的模式.
结论:
- 不同性别的性腺移植可以在功能上集成到成年小鼠的HPG轴中.
- 这种临床前模型表明,在未来的性别确认护理中,淋巴体移植的潜力.
- 这些发现还为探索各种研究领域中依赖性腺的性别差异开辟了道路.
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