Acidosis-mediated increase in IFN-γ-induced PD-L1 expression on cancer cells as an immune escape mechanism in solid tumors.

Biomarkers Checkpoint inhibitors Combination therapy Drug resistance mechanisms in immunotherapy Immune checkpoint inhibitors Immune response Immunotherapy Modulators of tumor microenvironment Oncology Precision medicine T-cells pH modulation of the tumor microenvironment

Journal

Molecular cancer
ISSN: 1476-4598
Titre abrégé: Mol Cancer
Pays: England
ID NLM: 101147698

Informations de publication

Date de publication:
15 Dec 2023
Historique:
received: 14 04 2023
accepted: 12 11 2023
medline: 16 12 2023
pubmed: 16 12 2023
entrez: 16 12 2023
Statut: epublish

Résumé

Immune checkpoint inhibitors have revolutionized cancer therapy, yet the efficacy of these treatments is often limited by the heterogeneous and hypoxic tumor microenvironment (TME) of solid tumors. In the TME, programmed death-ligand 1 (PD-L1) expression on cancer cells is mainly regulated by Interferon-gamma (IFN-γ), which induces T cell exhaustion and enables tumor immune evasion. In this study, we demonstrate that acidosis, a common characteristic of solid tumors, significantly increases IFN-γ-induced PD-L1 expression on aggressive cancer cells, thus promoting immune escape. Using preclinical models, we found that acidosis enhances the genomic expression and phosphorylation of signal transducer and activator of transcription 1 (STAT1), and the translation of STAT1 mRNA by eukaryotic initiation factor 4F (elF4F), resulting in an increased PD-L1 expression. We observed this effect in murine and human anti-PD-L1-responsive tumor cell lines, but not in anti-PD-L1-nonresponsive tumor cell lines. In vivo studies fully validated our in vitro findings and revealed that neutralizing the acidic extracellular tumor pH by sodium bicarbonate treatment suppresses IFN-γ-induced PD-L1 expression and promotes immune cell infiltration in responsive tumors and thus reduces tumor growth. However, this effect was not observed in anti-PD-L1-nonresponsive tumors. In vivo experiments in tumor-bearing IFN-γ

Identifiants

pubmed: 38102680
doi: 10.1186/s12943-023-01900-0
pii: 10.1186/s12943-023-01900-0
doi:

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

IM

Pagination

207

Informations de copyright

© 2023. The Author(s).

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Auteurs

Philipp Knopf (P)

Werner Siemens Imaging Center, Department of Preclinical Imaging and Radiopharmacy, Eberhard Karls University, Tübingen, Germany.

Dimitri Stowbur (D)

Werner Siemens Imaging Center, Department of Preclinical Imaging and Radiopharmacy, Eberhard Karls University, Tübingen, Germany.
Cluster of Excellence iFIT (EXC 2180) "Image Guided and Functionally Instructed Tumor Therapies", Röntgenweg 13, 72076, Tübingen, Germany.

Sabrina H L Hoffmann (SHL)

Werner Siemens Imaging Center, Department of Preclinical Imaging and Radiopharmacy, Eberhard Karls University, Tübingen, Germany.

Natalie Hermann (N)

Werner Siemens Imaging Center, Department of Preclinical Imaging and Radiopharmacy, Eberhard Karls University, Tübingen, Germany.

Andreas Maurer (A)

Werner Siemens Imaging Center, Department of Preclinical Imaging and Radiopharmacy, Eberhard Karls University, Tübingen, Germany.
Cluster of Excellence iFIT (EXC 2180) "Image Guided and Functionally Instructed Tumor Therapies", Röntgenweg 13, 72076, Tübingen, Germany.

Valentina Bucher (V)

Werner Siemens Imaging Center, Department of Preclinical Imaging and Radiopharmacy, Eberhard Karls University, Tübingen, Germany.

Marilena Poxleitner (M)

Werner Siemens Imaging Center, Department of Preclinical Imaging and Radiopharmacy, Eberhard Karls University, Tübingen, Germany.

Bredi Tako (B)

Werner Siemens Imaging Center, Department of Preclinical Imaging and Radiopharmacy, Eberhard Karls University, Tübingen, Germany.

Dominik Sonanini (D)

Werner Siemens Imaging Center, Department of Preclinical Imaging and Radiopharmacy, Eberhard Karls University, Tübingen, Germany.
Cluster of Excellence iFIT (EXC 2180) "Image Guided and Functionally Instructed Tumor Therapies", Röntgenweg 13, 72076, Tübingen, Germany.

Balaji Krishnamachary (B)

Division of Cancer Imaging Research, The Russell H Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, MD, USA.

Sanhita Sinharay (S)

Department of Cancer Systems Imaging, MD Anderson Cancer Center, 1881 East Rd, Houston, TX, 77054, USA.

Birgit Fehrenbacher (B)

Department of Dermatology, Eberhard Karls University, Tübingen, Germany.

Irene Gonzalez-Menendez (I)

Cluster of Excellence iFIT (EXC 2180) "Image Guided and Functionally Instructed Tumor Therapies", Röntgenweg 13, 72076, Tübingen, Germany.
Institute of Pathology and Neuropathology, Department of Pathology, Eberhard Karls University of Tübingen and Comprehensive Cancer Center, Tübingen University Hospital, Tübingen, Germany.

Felix Reckmann (F)

Werner Siemens Imaging Center, Department of Preclinical Imaging and Radiopharmacy, Eberhard Karls University, Tübingen, Germany.

David Bomze (D)

Department of Dermatology, Tel-Aviv Medical Center, Tel-Aviv, Israel.

Lukas Flatz (L)

Department of Dermatology, Eberhard Karls University, Tübingen, Germany.

Daniela Kramer (D)

Interfaculty Institute of Biochemistry, Eberhard Karls University, Tübingen, Germany.

Martin Schaller (M)

Department of Dermatology, Eberhard Karls University, Tübingen, Germany.

Stephan Forchhammer (S)

Department of Dermatology, Eberhard Karls University, Tübingen, Germany.

Zaver M Bhujwalla (ZM)

Division of Cancer Imaging Research, The Russell H Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, MD, USA.
Sidney Kimmel Comprehensive Cancer Center, The Johns Hopkins University, School of Medicine, Baltimore, MD, USA.
Department of Radiation Oncology and Molecular Radiation Sciences, The Johns Hopkins University, School of Medicine, Baltimore, MD, USA.

Leticia Quintanilla-Martinez (L)

Cluster of Excellence iFIT (EXC 2180) "Image Guided and Functionally Instructed Tumor Therapies", Röntgenweg 13, 72076, Tübingen, Germany.
Institute of Pathology and Neuropathology, Department of Pathology, Eberhard Karls University of Tübingen and Comprehensive Cancer Center, Tübingen University Hospital, Tübingen, Germany.

Klaus Schulze-Osthoff (K)

Cluster of Excellence iFIT (EXC 2180) "Image Guided and Functionally Instructed Tumor Therapies", Röntgenweg 13, 72076, Tübingen, Germany.
Interfaculty Institute of Biochemistry, Eberhard Karls University, Tübingen, Germany.
German Cancer Consortium (DKTK), partner site Tübingen, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69120, Heidelberg, Germany.

Mark D Pagel (MD)

Department of Cancer Systems Imaging, MD Anderson Cancer Center, 1881 East Rd, Houston, TX, 77054, USA.

Marieke F Fransen (MF)

Department of Immunohematology and Blood Transfusion, Leiden University Medical Center (LUMC), Leiden, Netherlands.

Martin Röcken (M)

Cluster of Excellence iFIT (EXC 2180) "Image Guided and Functionally Instructed Tumor Therapies", Röntgenweg 13, 72076, Tübingen, Germany.
Department of Dermatology, Eberhard Karls University, Tübingen, Germany.
German Cancer Consortium (DKTK), partner site Tübingen, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69120, Heidelberg, Germany.

André F Martins (AF)

Werner Siemens Imaging Center, Department of Preclinical Imaging and Radiopharmacy, Eberhard Karls University, Tübingen, Germany.
Cluster of Excellence iFIT (EXC 2180) "Image Guided and Functionally Instructed Tumor Therapies", Röntgenweg 13, 72076, Tübingen, Germany.
German Cancer Consortium (DKTK), partner site Tübingen, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69120, Heidelberg, Germany.

Bernd J Pichler (BJ)

Werner Siemens Imaging Center, Department of Preclinical Imaging and Radiopharmacy, Eberhard Karls University, Tübingen, Germany.
Cluster of Excellence iFIT (EXC 2180) "Image Guided and Functionally Instructed Tumor Therapies", Röntgenweg 13, 72076, Tübingen, Germany.
German Cancer Consortium (DKTK), partner site Tübingen, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69120, Heidelberg, Germany.

Kamran Ghoreschi (K)

Department of Dermatology, Venereology and Allergology, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin Institute of Health, 10117, Berlin, Germany.

Manfred Kneilling (M)

Werner Siemens Imaging Center, Department of Preclinical Imaging and Radiopharmacy, Eberhard Karls University, Tübingen, Germany. manfred.kneilling@med.uni-tuebingen.de.
Cluster of Excellence iFIT (EXC 2180) "Image Guided and Functionally Instructed Tumor Therapies", Röntgenweg 13, 72076, Tübingen, Germany. manfred.kneilling@med.uni-tuebingen.de.
Department of Dermatology, Eberhard Karls University, Tübingen, Germany. manfred.kneilling@med.uni-tuebingen.de.

Classifications MeSH