The long noncoding RNA glycoLINC assembles a lower glycolytic metabolon to promote glycolysis.

The long noncoding RNA glycoLINC assembles a lower glycolytic metabolon to promote glycolysis.
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长非编码 RNA gluLINC 组装较低的糖酵解代谢以促进糖酵解。

DOI:
10.1016/j.molcel.2021.11.017
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发表时间:
2022-01
期刊:
影响因子:
16
通讯作者:
Wu Mian
Wu Mian
中科院分区:
生物学1区
文献类型:
--
作者:
Zhu Youming;Jin Lei;Shi Ronghua;Li Jinming;Wang Yan;Zhang Li;Liang Chao-Zhao;Narayana Vinod K;De Souza David P;Thorne Rick F;Zhang Li Rong;Zhang Xu Dong;Wu Mian

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糖酵解酶的非共价复合体,称为代谢素,在20世纪70年代被提出,但这个概念一直存在争议。在这里,我们证明了一个c-Myc反应的长非编码RNA(LncRNA),我们称之为糖链(GLINC),是所有四种糖酵解支付相酶(PGK1,PGAM1,ENO1和PKM2)与乳酸脱氢酶A(LDHA)之间代谢形成的骨架。GLINC代谢蛋白增强糖酵解通量,增加ATP的产生,并使细胞在丝氨酸缺乏的情况下存活。此外,癌细胞中gLINC的过度表达促进了喂食不含丝氨酸的饮食的小鼠的异种移植生长,这表明癌细胞在代谢重编程期间使用了gLINC。我们认为gLINC对癌细胞的适应做出了功能贡献,并提供了第一个lncRNA促进的代谢产物的例子。
Non-covalent complexes of glycolytic enzymes, called metabolons, were postulated in the 1970s, but the concept has been controversial. Here we show that a c-Myc-responsive long noncoding RNA (lncRNA) that we call glycoLINC (gLINC) acts as a backbone for metabolon formation between all four glycolytic payoff phase enzymes (PGK1, PGAM1, ENO1, and PKM2) along with lactate dehydrogenase A (LDHA). The gLINC metabolon enhances glycolytic flux, increases ATP production, and enables cell survival under serine deprivation. Furthermore, gLINC overexpression in cancer cells promotes xenograft growth in mice fed a diet deprived of serine, suggesting that cancer cells employ gLINC during metabolic reprogramming. We propose that gLINC makes a functional contribution to cancer cell adaptation and provide the first example of a lncRNA-facilitated metabolon.
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