Lactate in the tumour microenvironment: From immune modulation to therapy

Disordered metabolic states, which are characterised by hypoxia and elevated levels of metabolites, particularly lactate, contribute to the immunosuppression in the tumour microenvironment (TME). Excessive lactate secreted by metabolism-reprogrammed cancer cells regulates immune responses via causin...

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Bibliographic Details
Published in:EBioMedicine Vol. 73; p. 103627
Main Authors: Wang, Zi-Hao, Peng, Wen-Bei, Zhang, Pei, Yang, Xiang-Ping, Zhou, Qiong
Format: Journal Article
Language:English
Published: Netherlands Elsevier B.V 01.11.2021
Elsevier
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ISSN:2352-3964, 2352-3964
Online Access:Get full text
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Summary:Disordered metabolic states, which are characterised by hypoxia and elevated levels of metabolites, particularly lactate, contribute to the immunosuppression in the tumour microenvironment (TME). Excessive lactate secreted by metabolism-reprogrammed cancer cells regulates immune responses via causing extracellular acidification, acting as an energy source by shuttling between different cell populations, and inhibiting the mechanistic (previously ‘mammalian’) target of rapamycin (mTOR) pathway in immune cells. This review focuses on recent advances in the regulation of immune responses by lactate, as well as therapeutic strategies targeting lactate anabolism and transport in the TME, such as those involving glycolytic enzymes and monocarboxylate transporter inhibitors. Considering the multifaceted roles of lactate in cancer metabolism, a comprehensive understanding of how lactate and lactate-targeting therapies regulate immune responses in the TME will provide insights into the complex relationships between metabolism and antitumour immunity.
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These authors contributed equally to this review.
ISSN:2352-3964
2352-3964
DOI:10.1016/j.ebiom.2021.103627