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Tryptophan depletion sensitizes the AHR pathway by increasing AHR expression and GCN2/LAT1-mediated kynurenine uptake, and potentiates induction of regulatory T lymphocytes

Abstract:

Background: Indoleamine 2,3-dioxygenase 1 (IDO1) and tryptophan-dioxygenase (TDO) are enzymes catabolizing the essential amino acid tryptophan into kynurenine. Expression of these enzymes is frequently observed in advanced-stage cancers and is associated with poor disease prognosis and immune suppression. Mechanistically, the respective roles of tryptophan shortage and kynurenine production in suppressing immunity remain unclear. Kynurenine was proposed as an endogenous li...

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Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1136/jitc-2023-006728

Authors


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Role:
Author
ORCID:
0000-0002-0945-678X
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Role:
Author
ORCID:
0000-0001-6761-6836
Publisher:
BMJ Publishing Group
Journal:
Journal for Immunotherapy of Cancer More from this journal
Volume:
11
Issue:
6
Article number:
e006728
Place of publication:
England
Publication date:
2023-06-21
Acceptance date:
2023-05-12
DOI:
EISSN:
2051-1426
ISSN:
2051-1426
Pmid:
37344101
Language:
English
Keywords:
Pubs id:
1489461
Local pid:
pubs:1489461
Deposit date:
2023-07-19

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