MCT4-dependent lactate secretion suppresses antitumor immunity in LKB1-deficient lung adenocarcinoma

Yu Qian, Ana Galan-Cobo, Irene Guijarro, Minghao Dang, David Molkentine, Alissa Poteete, Fahao Zhang, Qi Wang, Jing Wang, Edwin Parra, Apekshya Panda, Jacy Fang, Ferdinandos Skoulidis, Ignacio I. Wistuba, Svena Verma, Taha Merghoub, Jedd D. Wolchok, Kwok Kin Wong, Ralph J. DeBerardinis, John D. MinnaNatalie I. Vokes, Catherine B. Meador, Justin F. Gainor, Linghua Wang, Alexandre Reuben, John V. Heymach

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

Inactivating STK11/LKB1 mutations are genomic drivers of primary resistance to immunotherapy in KRAS-mutated lung adenocarcinoma (LUAD), although the underlying mechanisms remain unelucidated. We find that LKB1 loss results in enhanced lactate production and secretion via the MCT4 transporter. Single-cell RNA profiling of murine models indicates that LKB1-deficient tumors have increased M2 macrophage polarization and hypofunctional T cells, effects that could be recapitulated by the addition of exogenous lactate and abrogated by MCT4 knockdown or therapeutic blockade of the lactate receptor GPR81 expressed on immune cells. Furthermore, MCT4 knockout reverses the resistance to PD-1 blockade induced by LKB1 loss in syngeneic murine models. Finally, tumors from STK11/LKB1 mutant LUAD patients demonstrate a similar phenotype of enhanced M2-macrophages polarization and hypofunctional T cells. These data provide evidence that lactate suppresses antitumor immunity and therapeutic targeting of this pathway is a promising strategy to reversing immunotherapy resistance in STK11/LKB1 mutant LUAD.

Original languageEnglish (US)
Pages (from-to)1363-1380.e7
JournalCancer cell
Volume41
Issue number7
DOIs
StatePublished - Jul 10 2023

Keywords

  • immunotherapy resistance
  • lactate
  • LKB1
  • lung adenocarcinoma
  • macrophage polarization
  • MCT4
  • metabolism
  • PD-1
  • T cell activation

ASJC Scopus subject areas

  • Oncology
  • Cancer Research

MD Anderson CCSG core facilities

  • Bioinformatics Shared Resource

Fingerprint

Dive into the research topics of 'MCT4-dependent lactate secretion suppresses antitumor immunity in LKB1-deficient lung adenocarcinoma'. Together they form a unique fingerprint.

Cite this