Evidence map›Paper›PMID 35228743›Full record

ArticleNature metabolism2022

Malic enzyme 2 maintains protein stability of mutant p53 through 2-hydroxyglutarate.

Mengjia Zhao, Pengbo Yao, Youxiang Mao, Jinjun Wu, Weihua Wang, Chenhui Geng, Jie Cheng, Wenjing Du, Peng Jiang

Abstract read
PubMed Publisher
In one paragraph

Article in Nature metabolism, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
4.0field-weighted citation impact, top 5% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

28 citing papers in PubMed, 40 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 4 institutions in 2 countries.

Mengjia Zhao *School of Life Science, Tsinghua University, and Tsinghua-Peking Center for Life Sciences, Beijing, China.
Pengbo Yao *School of Life Science, Tsinghua University, and Tsinghua-Peking Center for Life Sciences, Beijing, China.
Youxiang Mao *School of Life Science, Tsinghua University, and Tsinghua-Peking Center for Life Sciences, Beijing, China.
Jinjun Wu *School of Life Science, Tsinghua University, and Tsinghua-Peking Center for Life Sciences, Beijing, China.
Weihua WangCenter of Pharmaceutical Technology, Tsinghua University, Beijing, China.
Chenhui GengSchool of Life Science, Tsinghua University, and Tsinghua-Peking Center for Life Sciences, Beijing, China.
Jie ChengSchool of Life Science, Tsinghua University, and Tsinghua-Peking Center for Life Sciences, Beijing, China.
Wenjing DuState Key Laboratory of Medical Molecular Biology, Department of Cell Biology, Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Beijing, China. wenjingdu@ibms.pumc.edu.cn.ORCID http://orcid.org/0000-0002-9761-0774
Peng JiangSchool of Life Science, Tsinghua University, and Tsinghua-Peking Center for Life Sciences, Beijing, China. pengjiang@tsinghua.edu.cn.ORCID http://orcid.org/0000-0002-4218-0092
Center for Life Sciences · CNChinese Academy of Medical Sciences & Peking Union Medical College · CNKing Center · USTsinghua University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Many types of cancer feature TP53 mutations with oncogenic properties. However, whether the oncogenic activity of mutant p53 is affected by the cellular metabolic state is unknown. Here we show that cancer-associated mutant p53 protein is stabilized by 2-hydroxyglutarate generated by malic enzyme 2. Mechanistically, malic enzyme 2 promotes the production of 2-hydroxyglutarate by adjusting glutaminolysis, as well as through a reaction that requires pyruvate and NADPH. Malic enzyme 2 depletion decreases cellular 2-hydroxyglutarate levels in vitro and in vivo, whereas elevated malic enzyme 2 expression increases 2-hydroxyglutarate production. We further show that 2-hydroxyglutarate binds directly to mutant p53, which reduces Mdm2-mediated mutant p53 ubiquitination and degradation. 2-Hydroxyglutarate supplementation is sufficient for maintaining mutant p53 protein stability in malic enzyme 2-depleted cells, and restores tumour growth of malic enzyme 2-ablated cells, but not of cells that lack mutant p53. Our findings reveal the previously unrecognized versatility of malic enzyme 2 catalytic functions, and uncover a role for mutant p53 in sensing cellular 2-hydroxyglutarate levels, which contribute to the stabilization of mutant p53 and tumour growth.

Indexed as

NeoplasmsTumor Suppressor Protein p53CarcinogenesisGlutaratesHumansMalate DehydrogenaseProtein Stabilityalpha-hydroxyglutarateGlutaratesMalate Dehydrogenasemalic enzyme 2; humanTumor Suppressor Protein p53

Identifiers

PMID35228743
OpenAlexW4214529034

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.