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大脑干BDNF神经元是GFRAL/GLP1R信号的下游

Claire H Feetham¹, Valeria Collabolletta¹, Amy A Worth¹

¹Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK.

Nature communications

|December 31, 2024

概括

增长分化因子15 (GDF15) 和类似于葡萄糖类-1 (GLP-1) 的类似物通过脑干神经元减少食物摄入. 一个新发现的涉及脑衍生神经营养因子 (BDNF) 神经元的途径对于减肥至关重要,并可能提供新的治疗策略.

科学领域:

神经科学是一个神经科学.
代谢研究的研究.
内分泌学在内分泌学.

背景情况:

增长分化因子15 (GDF15) 和葡萄糖类-1 (GLP-1) 受体激活剂减少食物摄入量和体重.
这些途径涉及脑干神经元共同表达GDNF家族α类受体 (GFRAL) 和GLP1R.
病态行为和厌恶,由外侧侧脑核介导,限制了它们的临床应用.

研究的目的:

确定介导GDF15和GLP-1类似物减肥效应的新型神经通路.
为了研究大脑衍生神经营养因子 (BDNF) 神经元在单身管 (mNTS) 的中枢核中对食欲调节的作用.
探索体重管理的潜在治疗目标.

主要方法:

利用小鼠模型研究GFRAL/GLP1R神经元下游的神经通路.
专注于mNTS中的BDNF表达细胞的一个独特群体.
研究了BDNFmNTS神经元激活对减肥效果的必要性和充分性.

主要成果:

BDNFmNTS神经元对于GDF15和GLP-1受体激活剂Exendin-4的减肥作用至关重要.
BDNFmNTS神经元的急性激活有效地减少了食物摄入量.
这些神经元的激活也促进脂肪酸氧化.

结论:

涉及BDNFmNTS神经元的独特神经通路调解了GDF15和GLP-1类似物对厌食和减肥的影响.
准BDNFmNTS神经元是开发更有效的减肥疗法的潜在策略.
这一途径可能为实现长期体重管理提供了一条途径.

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