通过冷改变的全球代谢进行棕色脂肪介导的瘤抑制
Takahiro Seki1, Yunlong Yang1,2, Xiaoting Sun1,3
1Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Solna, Sweden.
Nature
|August 3, 2022
概括
通过激活棕色脂肪组织 (BAT) 来抑制癌症的生长,从而降低血糖并阻碍瘤代谢. 这种方法对各种癌症治疗具有前景.
科学领域:
- 代谢调节
- 癌症生物学
- 热生成
背景情况:
- 葡萄糖吸收对癌细胞代谢和增殖至关重要.
- 咖啡色脂肪组织 (BAT) 的冷活化增加了热生成的葡萄糖吸收.
- 瘤激活对瘤生长的影响在很大程度上是未知的.
研究的目的:
- 研究冷诱导的棕色脂肪组织 (BAT) 激活对瘤生长的影响.
- 阐明寒冷暴露对癌症代谢影响的潜在机制.
主要方法:
- 携带瘤的小鼠被暴露在寒冷环境中.
- 监测了葡萄糖吸收,BAT激活 (Ucp1表达) 和瘤生长.
- 研究包括饮食干预和基因操纵 (UCP1删除).
- 一项在人类进行的试点研究评估了在温和的寒冷环境下激活和摄取葡萄糖.
主要成果:
- 暴露在寒冷中显著抑制了各种固体瘤的生长,包括胰腺癌.
- 低温诱导的BAT激活降低了血糖水平,并影响了癌细胞的糖解.
- 在BAT切除或高葡萄糖饮食下观察到瘤生长的恢复.
- 删除ucp1消除了暴露在寒冷中的抗瘤作用.
- 在人体中,轻度冷暴露激活了BAT,减少了瘤的葡萄糖吸收.
结论:
- 通过向葡萄糖代谢,冷诱导的BAT激活提供了针对各种癌症的新疗法.
- 这种方法为癌症治疗提供了一种简单,有效和潜在的通用方法.
- 对癌症治疗的BAT激活,可能与其他治疗相结合的进一步研究是合理的.
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