肝胺合成将系统性炎症与癌症中的器官功能障碍联系在一起
Ying Liu1, Ting Miao1, Alice Wang2
1Department of Genetics, Blavatnik Institute, Harvard Medical School, Boston, MA 02115, USA.
bioRxiv : the preprint server for biology
|November 19, 2025
概括
瘤细胞因子通过改变脂质代谢来重新编程器官. 这项研究确定了一种保存的细胞因子-脂质通路,导致肝脏自功能障碍,为癌症相关的肝脏疾病提供了潜在的治疗标.
科学领域:
- 细胞生物学 细胞生物学
- 代谢性疾病 代谢性疾病
- 在瘤学瘤学.
背景情况:
- 瘤综合征涉及来自瘤的细胞因子,影响远处的器官.
- 细胞因子损害器官功能,特别是肝脏的确切机制尚未完全理解.
- 介质素-6 (IL-6) 是已知的调解剂,但其对肝功能的下游影响需要进一步阐明.
研究的目的:
- 确定将瘤衍生的细胞因子与肝功能障碍联系起来的分子机制.
- 为了研究脂质代谢在神经瘤综合征中的作用.
- 探索癌症相关肝脏疾病的潜在治疗点.
主要方法:
- 利用 *Drosophila* 模型研究细胞因子诱导的脂肪体中的代谢变化.
- 确定了参与脂质代谢的关键基因,包括甘油三脂酶 (CG5966,命名为"平静") 和胺合成酶 (schlank).
- 在哺乳动物模型 (小鼠) 和人类肝细胞癌患者中验证的发现,检查了Interleukin-6 (IL-6),脂蛋白脂酶 (Lpl) 和胺合成酶.
主要成果:
- 在 * Drosophila * 中,由肠道瘤衍生的 Upd3 在脂肪体中调节"平静"和"",导致脂质代谢重新连接和自流堵塞.
- "平静"或""的遗传减少恢复了Drosophila*中的器官恒常性和减轻了瘤表型.
- 在哺乳动物中,IL-6上调肝脂蛋白脂酶 (Lpl) 和胺合成酶,导致自阻塞;较高的LPL和胺合成酶表达与肝细胞癌的生存率较差相关.
结论:
- 一个保存的细胞因子-脂质轴驱动肝脏自功能障碍在瘤综合征.
- 肝脂代谢,特别是胺合成,是系统性炎症和器官功能障碍之间的关键联系.
- 针对这种途径,特别是胺合成,为癌症相关的肝脏疾病提供了潜在的治疗策略.
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