Evidence map›Paper›PMID 39098109›Full record

ArticleEBioMedicine2024

The potential role of lung microbiota and lauroylcarnitine in T-cell activation associated with checkpoint inhibitor pneumonitis.

Wenyi Yu, Keqiang Wang, Yukun He, Ying Shang, Xiaoyi Hu, Xinwei Deng, Lili Zhao, Xinqian Ma, Xinlin Mu, Ran Li and 1 more

Abstract read
In one paragraph

Article in EBioMedicine, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

13 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  13. Key findings from 15 years ofApplied and environmental microbiology · 2025
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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

11 authors.

Wenyi YuDepartment of Respiratory and Critical Care Medicine, Peking University People's Hospital, Beijing 100044, China.
Keqiang WangDepartment of Respiratory and Critical Care Medicine, Peking University People's Hospital, Beijing 100044, China.
Yukun HeDepartment of Respiratory and Critical Care Medicine, Peking University People's Hospital, Beijing 100044, China.
Ying ShangDepartment of Respiratory and Critical Care Medicine, Peking University People's Hospital, Beijing 100044, China.
Xiaoyi HuDepartment of Respiratory and Critical Care Medicine, Peking University People's Hospital, Beijing 100044, China.
Xinwei DengDepartment of Respiratory and Critical Care Medicine, Peking University People's Hospital, Beijing 100044, China.
Lili ZhaoDepartment of Respiratory and Critical Care Medicine, Peking University People's Hospital, Beijing 100044, China.
Xinqian MaDepartment of Respiratory and Critical Care Medicine, Peking University People's Hospital, Beijing 100044, China.
Xinlin MuDepartment of Respiratory and Critical Care Medicine, Peking University People's Hospital, Beijing 100044, China.
Ran LiDepartment of Respiratory and Critical Care Medicine, Peking University People's Hospital, Beijing 100044, China. Electronic address: liran2004@bjmu.edu.cn.
Zhancheng GaoDepartment of Respiratory and Critical Care Medicine, Peking University People's Hospital, Beijing 100044, China. Electronic address: zcgao@bjmu.edu.cn.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundCheckpoint inhibitor pneumonitis (CIP) is a potentially fatal adverse event characterized by new pulmonary infiltrates in cancer patients receiving immune checkpoint inhibitor therapy. This study aims to explore the interplay between lung microbiota, dysregulated metabolites, and host immunity in CIP.

methodsWe recruited thirteen hospitalized CIP patients, eleven idiopathic pulmonary fibrosis (IPF) patients, and ten new-onset non-small cell lung cancer patients. Bronchoalveolar lavage fluid samples were collected for 16S rRNA gene sequencing. The percentages of immune cells were determined using manual counting and flow cytometry. Interactions among microbiota, metabolites, and lymphocytes were analyzed using cultured mouse splenocytes and human T cells.

findingsProteobacteria emerged as the dominant phylum, notably abundant in both the CIP and IPF groups. Vibrio, Halomonas, Mangrovibacter, and Salinivibrio were the predominant microbiota because of their discriminative abundance patterns. Vibrio (r = 0.72, P-adj = 0.007) and Halomonas (r = 0.65, P-adj = 0.023) demonstrated strong correlations with lymphocytes. Vibrio metschnikovii and Mangrovibacter plantisponsors were more abundant in the CIP group than in the IPF group. Lauroylcarnitine, a key intermediary metabolite co-occurring with the predominant microbiota, exhibited a potent effect on cytokine secretion by mouse and human T cells, notably enhancing IFN-γ and TNF-α production from CD4 and CD8 cells in vitro.

interpretationLauroylcarnitine, co-occurring with the predominant lung microbiota in CIP, could activate T cells in vitro. These findings suggest potential involvement of lung microbiota and acylcarnitine metabolism dysregulation in the pathogenesis of CIP.

fundingThis work was supported by Peking University People's Hospital Scientific Research Development Funds (RDJ2022-15) and Provincial Key Clinical Specialty Capacity Building Project 2020 (Department of the Respiratory Medicine).

Indexed as

Immune Checkpoint InhibitorsLungLymphocyte ActivationMicrobiotaPneumoniaT-LymphocytesAgedAnimalsCarnitineCytokinesFemaleHumansLung NeoplasmsMaleMiceMiddle AgedCarnitineCytokinesImmune Checkpoint InhibitorsRNA, Ribosomal, 16S16S rRNACheckpoint inhibitor pneumonitisLauroylcarnitineLymphocyteNon-small cell lung cancer

Identifiers

PMID39098109
PMCPMC11334825

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LicenceCC BY-NC-ND
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Registered trials

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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.