Strategies to Interfere with Tumor Metabolism through the Interplay of Innate and Adaptive Immunity

The inflammatory tumor microenvironment is an important regulator of carcinogenesis. Tumor-infiltrating immune cells promote each step of tumor development, exerting crucial functions from initiation, early neovascularization, to metastasis. During tumor outgrowth, tumor-associated immune cells, inc...

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Main Authors: Javier Mora, Christina Mertens, Julia K. Meier, Dominik C. Fuhrmann, Bernhard Brüne, Michaela Jung
Format: Article
Language:English
Published: MDPI AG 2019-05-01
Series:Cells
Subjects:
Online Access:https://www.mdpi.com/2073-4409/8/5/445
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author Javier Mora
Christina Mertens
Julia K. Meier
Dominik C. Fuhrmann
Bernhard Brüne
Michaela Jung
author_facet Javier Mora
Christina Mertens
Julia K. Meier
Dominik C. Fuhrmann
Bernhard Brüne
Michaela Jung
author_sort Javier Mora
collection DOAJ
description The inflammatory tumor microenvironment is an important regulator of carcinogenesis. Tumor-infiltrating immune cells promote each step of tumor development, exerting crucial functions from initiation, early neovascularization, to metastasis. During tumor outgrowth, tumor-associated immune cells, including myeloid cells and lymphocytes, acquire a tumor-supportive, anti-inflammatory phenotype due to their interaction with tumor cells. Microenvironmental cues such as inflammation and hypoxia are mainly responsible for creating a tumor-supportive niche. Moreover, it is becoming apparent that the availability of iron within the tumor not only affects tumor growth and survival, but also the polarization of infiltrating immune cells. The interaction of tumor cells and infiltrating immune cells is multifaceted and complex, finally leading to different activation phenotypes of infiltrating immune cells regarding their functional heterogeneity and plasticity. In recent years, it was discovered that these phenotypes are mainly implicated in defining tumor outcome. Here, we discuss the role of the metabolic activation of both tumor cells and infiltrating immune cells in order to adapt their metabolism during tumor growth. Additionally, we address the role of iron availability and the hypoxic conditioning of the tumor with regard to tumor growth and we describe the relevance of therapeutic strategies to target such metabolic characteristics.
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spelling doaj.art-0c647a007089410e8715d3aee0c8408d2023-09-02T12:19:13ZengMDPI AGCells2073-44092019-05-018544510.3390/cells8050445cells8050445Strategies to Interfere with Tumor Metabolism through the Interplay of Innate and Adaptive ImmunityJavier Mora0Christina Mertens1Julia K. Meier2Dominik C. Fuhrmann3Bernhard Brüne4Michaela Jung5Institute of Biochemistry I, Faculty of Medicine, Goethe-University Frankfurt, Theodor-Stern-Kai 7, 60590 Frankfurt, GermanyInstitute of Biochemistry I, Faculty of Medicine, Goethe-University Frankfurt, Theodor-Stern-Kai 7, 60590 Frankfurt, GermanyInstitute of Biochemistry I, Faculty of Medicine, Goethe-University Frankfurt, Theodor-Stern-Kai 7, 60590 Frankfurt, GermanyInstitute of Biochemistry I, Faculty of Medicine, Goethe-University Frankfurt, Theodor-Stern-Kai 7, 60590 Frankfurt, GermanyInstitute of Biochemistry I, Faculty of Medicine, Goethe-University Frankfurt, Theodor-Stern-Kai 7, 60590 Frankfurt, GermanyInstitute of Biochemistry I, Faculty of Medicine, Goethe-University Frankfurt, Theodor-Stern-Kai 7, 60590 Frankfurt, GermanyThe inflammatory tumor microenvironment is an important regulator of carcinogenesis. Tumor-infiltrating immune cells promote each step of tumor development, exerting crucial functions from initiation, early neovascularization, to metastasis. During tumor outgrowth, tumor-associated immune cells, including myeloid cells and lymphocytes, acquire a tumor-supportive, anti-inflammatory phenotype due to their interaction with tumor cells. Microenvironmental cues such as inflammation and hypoxia are mainly responsible for creating a tumor-supportive niche. Moreover, it is becoming apparent that the availability of iron within the tumor not only affects tumor growth and survival, but also the polarization of infiltrating immune cells. The interaction of tumor cells and infiltrating immune cells is multifaceted and complex, finally leading to different activation phenotypes of infiltrating immune cells regarding their functional heterogeneity and plasticity. In recent years, it was discovered that these phenotypes are mainly implicated in defining tumor outcome. Here, we discuss the role of the metabolic activation of both tumor cells and infiltrating immune cells in order to adapt their metabolism during tumor growth. Additionally, we address the role of iron availability and the hypoxic conditioning of the tumor with regard to tumor growth and we describe the relevance of therapeutic strategies to target such metabolic characteristics.https://www.mdpi.com/2073-4409/8/5/445tumor-associated macrophagesT cellshypoxiacancer cell metabolismiron metabolismiron chelator
spellingShingle Javier Mora
Christina Mertens
Julia K. Meier
Dominik C. Fuhrmann
Bernhard Brüne
Michaela Jung
Strategies to Interfere with Tumor Metabolism through the Interplay of Innate and Adaptive Immunity
Cells
tumor-associated macrophages
T cells
hypoxia
cancer cell metabolism
iron metabolism
iron chelator
title Strategies to Interfere with Tumor Metabolism through the Interplay of Innate and Adaptive Immunity
title_full Strategies to Interfere with Tumor Metabolism through the Interplay of Innate and Adaptive Immunity
title_fullStr Strategies to Interfere with Tumor Metabolism through the Interplay of Innate and Adaptive Immunity
title_full_unstemmed Strategies to Interfere with Tumor Metabolism through the Interplay of Innate and Adaptive Immunity
title_short Strategies to Interfere with Tumor Metabolism through the Interplay of Innate and Adaptive Immunity
title_sort strategies to interfere with tumor metabolism through the interplay of innate and adaptive immunity
topic tumor-associated macrophages
T cells
hypoxia
cancer cell metabolism
iron metabolism
iron chelator
url https://www.mdpi.com/2073-4409/8/5/445
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