Evidence map›Paper›PMID 42192505›Full record

ArticleCellular & molecular biology letters2026

Enolase 2-mediated lactylation-dependent disruption of the GNL3-MDM2-p53 axis in age-related osteoarthritis.

Feng Hua, Jiangyu Nan, Rong Wu, Bin Zhang, Qimeng Liu, Tianliang Ma, Zheyu Zhang, Yihe Hu, Jie Xie, Yute Yang

Abstract read
In one paragraph

Article in Cellular & molecular biology letters, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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0citing papers in PubMed
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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

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3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

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5 · Who and what money

Authors and funding

10 authors.

Feng Hua *Department of Orthopedics, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.
Jiangyu Nan *Department of Orthopedics, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.
Rong WuDepartment of Orthopedics, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.
Bin ZhangDepartment of Orthopedics, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.
Qimeng LiuDepartment of Orthopedics, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.
Tianliang MaDepartment of Orthopedics, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.
Zheyu ZhangDepartment of Orthopedics, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.
Yihe HuDepartment of Orthopedics, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China. xy_huyh@163.com.
Jie XieDepartment of Orthopedics, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China. dr_xiejie@zju.edu.cn.
Yute YangDepartment of Orthopedics, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China. yyyyyt@zju.edu.cn.ORCID http://orcid.org/0000-0002-1504-0764

Funding

National Natural Science Foundation of China 82202733Zhejiang Provincial Natural Science Foundation of China LY24H060004
6 · The paper itself

Abstract

backgroundAge-related osteoarthritis (OA) involves metabolic dysregulation and chondrocyte senescence. This study examined the nonmetabolic role of enolase 2 (ENO2) in OA pathogenesis and its therapeutic potential.

methodsHuman aged and OA cartilage (n = 3 per group) underwent

resultsProteomics revealed ENO2 upregulation in aged human cartilage. In vitro, ENO2 overexpression promoted extracellular matrix catabolism, senescence, and glycolysis, whereas ENO2 knockdown attenuated these processes. Mediated by its Glu-4 residue, nuclear ENO2 bound GNL3 lactylated at Lys-5. This interaction displaced MDM2 from GNL3, resulting in MDM2 destabilization, impaired ubiquitination, p53 accumulation, and persistent senescence. Moreover, p53 transcriptionally activated ENO2, establishing a pathological positive feedback loop. Pharmacological inhibition of ENO2 with POMHEX disrupted ENO2-GNL3 binding, restored p53 degradation, reduced senescence markers in vitro, and mitigated cartilage degradation, subchondral bone sclerosis, and pain in aged mice.

conclusionsENO2 promotes OA progression through a lactate-dependent, lactylation-mediated disruption of the GNL3-MDM2-p53 axis, leading to a senescent feedback loop. Targeting ENO2 may represent a novel disease-modifying therapeutic approach for age-related OA.

Indexed as

OsteoarthritisPhosphopyruvate HydrataseProto-Oncogene Proteins c-mdm2Tumor Suppressor Protein p53AgedAgingAnimalsCellular SenescenceChondrocytesHumansMaleMiceMice, Inbred C57BLMDM2 protein, humanPhosphopyruvate HydrataseProto-Oncogene Proteins c-mdm2Tumor Suppressor Protein p53Enolase-2G protein nucleolar 3LactylationOsteoarthritisSenescence

Identifiers

PMID42192505
PMCPMC13428458

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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.