Evidence map›Paper›PMID 37226257›Full record

ArticleCancer & metabolism2023

Dual inhibition of IDO1/TDO2 enhances anti-tumor immunity in platinum-resistant non-small cell lung cancer.

Chunjing Wu, Sydney A Spector, George Theodoropoulos, Dan J M Nguyen, Emily Y Kim, Ashley Garcia, Niramol Savaraj, Diane C Lim, Ankita Paul, Lynn G Feun and 2 more

Abstract read
In one paragraph

Article in Cancer & metabolism, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers.

0numbers the graph read from it
0cells of the map it votes in
47citing papers in PubMed
–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

47 citing papers in PubMed.

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  15. Association of IL4I1Frontiers in immunology · 2026
    Article
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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

12 authors.

Chunjing WuDepartment of Veterans Affairs, Miami VA Healthcare System, Miami, FL, USA.
Sydney A SpectorDepartment of Veterans Affairs, Miami VA Healthcare System, Miami, FL, USA.
George TheodoropoulosDepartment of Veterans Affairs, Miami VA Healthcare System, Miami, FL, USA.
Dan J M NguyenDepartment of Veterans Affairs, Miami VA Healthcare System, Miami, FL, USA.
Emily Y KimDepartment of Veterans Affairs, Miami VA Healthcare System, Miami, FL, USA.
Ashley GarciaDepartment of Veterans Affairs, Miami VA Healthcare System, Miami, FL, USA.
Niramol SavarajDepartment of Veterans Affairs, Miami VA Healthcare System, Miami, FL, USA.
Diane C LimDepartment of Veterans Affairs, Miami VA Healthcare System, Miami, FL, USA.
Ankita PaulDepartment of Electrical and Computer Engineering, Drexel University, Philadelphia, PA, USA.
Lynn G FeunDepartment of Medicine, University of Miami School of Medicine, Miami, FL, USA.
Michael BickerdikeAntido Therapeutics Pty Ltd, Melbourne, Australia.
Medhi WangpaichitrDepartment of Veterans Affairs, Miami VA Healthcare System, Miami, FL, USA. mwangpaichitr@med.miami.edu.ORCID http://orcid.org/0000-0002-7338-2041

Funding

BLRD VA I01 BX004371Sylvester Comprehensive Cancer Center, University of Miami Health Systems 1P30CA240139U.S. Department of Veterans Affairs 1I01BX004371
6 · The paper itself

Abstract

backgroundThe impact of non-small cell lung cancer (NSCLC) metabolism on the immune microenvironment is not well understood within platinum resistance. We have identified crucial metabolic differences between cisplatin-resistant (CR) and cisplatin-sensitive (CS) NSCLC cells with elevated indoleamine 2,3-dioxygenase-1 (IDO1) activity in CR, recognized by increased kynurenine (KYN) production.

methodsCo-culture, syngeneic, and humanize mice models were utilized. C57BL/6 mice were inoculated with either Lewis lung carcinoma mouse cells (LLC) or their platinum-resistant counterpart (LLC-CR) cells. Humanized mice were inoculated with either A (human CS cells) or ALC (human CR cells). Mice were treated with either IDO1 inhibitor or TDO2 (tryptophan 2,3-dioxygenase-2) inhibitor at 200 mg/kg P.O. once a day for 15 days; or with a new-in-class, IDO1/TDO2 dual inhibitor AT-0174 at 170 mg/kg P.O. once a day for 15 days with and without anti-PD1 antibody (10 mg/kg, every 3 days). Immune profiles and KYN and tryptophan (TRP) production were evaluated.

resultsCR tumors exhibited a more highly immunosuppressive environment that debilitated robust anti-tumor immune responses. IDO1-mediated KYN production from CR cells suppressed NKG2D on immune effector natural killer (NK) and CD8

conclusionOur study reports the presence of platinum-resistant lung tumors that utilize both IDO1/TDO2 enzymes for survival, and to escape immune surveillance as a consequence of KYN metabolites. We also report early in vivo data in support of the potential therapeutic efficacy of the dual IDO1/TDO2 inhibitor AT-0174 as a part of immuno-therapeutic treatment that disrupts tumor metabolism and enhances anti-tumor immunity.

Indexed as

Cisplatin resistanceDrug resistanceDual IDO1/TDO2 inhibitorsImmunometabolismKynurenineLung cancer

Identifiers

PMID37226257
PMCPMC10207715

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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.