细胞诱导一种新型的SLC程序,促进葡萄糖吸收和乳酸释放
Sho Morioka1,2, Justin S A Perry1,2, Michael H Raymond1,3
1The Center for Cell Clearance, University of Virginia, Charlottesville, VA, USA.
Nature
|November 23, 2018
概括
细胞使用特定的溶解物载体 (SLC) 基因程序来吞细胞,依靠有氧糖解来获得能量,并释放乳酸以减少炎症. 这一过程对于组织修复和免疫调节至关重要.
科学领域:
- 免疫学
- 细胞生物学
- 代谢过程
背景情况:
- 组织平衡依赖于通过细胞的效能去除亡细胞.
- 在细胞形成过程中,对细胞的代谢和遗传调节的理解尚不完全.
- 了解这些过程是理解组织修复和抗炎反应的关键.
研究的目的:
- 描述细胞在发酵过程中的转录程序.
- 确定关键的分子参与者,特别是涉及细胞的溶液载体蛋白 (SLC).
- 阐明支持细胞增生及其抗炎作用的代谢转变,特别是糖溶解.
主要方法:
- 通过RNA测序分析了细胞的基因表达特征.
- 进行了功能性评估,以确定已识别的SLC在细胞活动中的作用.
- 研究了包括有氧糖解和氧化酸化在内的代谢途径.
主要成果:
- 鉴定出一个独特的基因特征,涉及33个溶解物载体 (SLC) 家族成员,在细胞分裂过程中特别调节.
- 在抑制氧化酸化的同时,通过SLC2A1介导的葡萄糖吸收引发有机糖解.
- 通过SLC16A1调解的乳酸释放被观察到,并发现它促进了抗炎组织环境.
结论:
- 一个新型的SLC基因程序在细胞分裂过程中被激活,突出显示了膜运输蛋白的重要性.
- 细胞表现出以前未知的依赖于有氧糖解的细胞吸收和处理.
- 乳酸酸等新陈代谢副产品在调节周围组织环境和促进抗炎信号方面发挥着重要作用.
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