Evidence map›Paper›PMID 36854755›Full record

ArticleCell death & disease2023

Supplementation with α-ketoglutarate improved the efficacy of anti-PD1 melanoma treatment through epigenetic modulation of PD-L1.

Nian Liu, Jianglin Zhang, Mingjie Yan, Lihui Chen, Jie Wu, Qian Tao, Bei Yan, Xiang Chen, Cong Peng

Open access · goldAbstract read
In one paragraph

Article in Cell death & disease, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed, 1 pooled it
8.4field-weighted citation impact, top 2% 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

26 citing papers in PubMed, 1 synthesis or guideline pooled it, 51 citations in OpenAlex.

  1. Pooled it
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  12. Progress in understanding the regulatory mechanisms of immune checkpoint proteins PD-1 and PD-L1 expression.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2025
    Review
  13. Metabolic Reprogramming in Melanoma: An Epigenetic Point of View.Pharmaceuticals (Basel, Switzerland) · 2025
    Review
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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 2 institutions in 3 countries.

Nian LiuDepartment of Dermatology, Xiangya Hospital, Central South University, Changsha, China.
Jianglin ZhangDepartment of Dermatology, 2nd Clinical Medical College of Jinan University, Changsha, China.
Mingjie YanDepartment of Dermatology, Xiangya Hospital, Central South University, Changsha, China.
Lihui ChenDepartment of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, China.
Jie WuDepartment of Dermatology, Xiangya Hospital, Central South University, Changsha, China.
Qian TaoDepartment of Dermatology, Xiangya Hospital, Central South University, Changsha, China.
Bei YanDepartment of Dermatology, Xiangya Hospital, Central South University, Changsha, China.
Xiang ChenDepartment of Dermatology, Xiangya Hospital, Central South University, Changsha, China. chenxiangck@126.com.ORCID 0000-0001-8187-636X
Cong PengDepartment of Dermatology, Xiangya Hospital, Central South University, Changsha, China. pengcongxy@csu.edu.cn.ORCID 0000-0001-7104-5490
Central South University · CNJinan University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Patients with advanced melanoma have shown an improved outlook after anti-PD1 therapy, but the low response rate restricts clinical benefit; therefore, enhancing anti-PD1 therapeutic efficacy remains a major challenge. Here, our findings showed a significantly increased abundance of α-KG in healthy controls, anti-PD1-sensitive melanoma-bearing mice, and anti-PD1-sensitive melanoma patients; moreover, supplementation with α-KG enhanced the efficacy of anti-PD1 immunotherapy and increased PD-L1 expression in melanoma tumors via STAT1/3. We also found that supplementation with α-KG significantly increased the activity of the methylcytosine dioxygenases TET2/3, which led to an increased 5-hydroxymethylcytosine (5-hmC) level in the PD-L1 promoter. As a consequence, STAT1/3 binding to the PD-L1 promoter was stabilized to upregulate PD-L1 expression. Importantly, single-cell sequencing of preclinical samples and analysis of clinical data revealed that TET2/3-STAT1/3-CD274 signaling was associated with sensitivity to anti-PD1 treatment in melanoma. Taken together, our results provide novel insight into α-KG's function in anti-PD1 treatment of melanoma and suggest supplementation with α-KG as a novel promising strategy to improve the efficacy of anti-PD1 therapy.

Indexed as

B7-H1 AntigenKetoglutaric AcidsMelanomaAnimalsDietary SupplementsEpigenesis, GeneticMiceB7-H1 AntigenKetoglutaric Acids

Identifiers

PMID36854755
PMCPMC9974984
OpenAlexW4322719981

What OpenQuestion holds

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LicenceCC BY
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.