Targeting Tumor-Associated Macrophages in Cancer Immunotherapy

Tumor-associated macrophages (TAMs) represent the most abundant leukocyte population in most solid tumors and are greatly influenced by the tumor microenvironment. More importantly, these macrophages can promote tumor growth and metastasis through interactions with other cell populations within the...

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Auteurs principaux: Amy J. Petty, Dwight H. Owen, Yiping Yang, Xiaopei Huang
Format: article
Langue:EN
Publié: MDPI AG 2021
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Accès en ligne:https://doaj.org/article/cc4260f365554db2a2b9811a54b63433
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spelling oai:doaj.org-article:cc4260f365554db2a2b9811a54b634332021-11-11T15:28:15ZTargeting Tumor-Associated Macrophages in Cancer Immunotherapy10.3390/cancers132153182072-6694https://doaj.org/article/cc4260f365554db2a2b9811a54b634332021-10-01T00:00:00Zhttps://www.mdpi.com/2072-6694/13/21/5318https://doaj.org/toc/2072-6694Tumor-associated macrophages (TAMs) represent the most abundant leukocyte population in most solid tumors and are greatly influenced by the tumor microenvironment. More importantly, these macrophages can promote tumor growth and metastasis through interactions with other cell populations within the tumor milieu and have been associated with poor outcomes in multiple tumors. In this review, we examine how the tumor microenvironment facilitates the polarization of TAMs. Additionally, we evaluate the mechanisms by which TAMs promote tumor angiogenesis, induce tumor invasion and metastasis, enhance chemotherapeutic resistance, and foster immune evasion. Lastly, we focus on therapeutic strategies that target TAMs in the treatments of cancer, including reducing monocyte recruitment, depleting or reprogramming TAMs, and targeting inhibitory molecules to increase TAM-mediated phagocytosis.Amy J. PettyDwight H. OwenYiping YangXiaopei HuangMDPI AGarticletumor-associated macrophages (TAM)tumor microenvironmentimmunotherapycheckpoint inhibitorcancerNeoplasms. Tumors. Oncology. Including cancer and carcinogensRC254-282ENCancers, Vol 13, Iss 5318, p 5318 (2021)
institution DOAJ
collection DOAJ
language EN
topic tumor-associated macrophages (TAM)
tumor microenvironment
immunotherapy
checkpoint inhibitor
cancer
Neoplasms. Tumors. Oncology. Including cancer and carcinogens
RC254-282
spellingShingle tumor-associated macrophages (TAM)
tumor microenvironment
immunotherapy
checkpoint inhibitor
cancer
Neoplasms. Tumors. Oncology. Including cancer and carcinogens
RC254-282
Amy J. Petty
Dwight H. Owen
Yiping Yang
Xiaopei Huang
Targeting Tumor-Associated Macrophages in Cancer Immunotherapy
description Tumor-associated macrophages (TAMs) represent the most abundant leukocyte population in most solid tumors and are greatly influenced by the tumor microenvironment. More importantly, these macrophages can promote tumor growth and metastasis through interactions with other cell populations within the tumor milieu and have been associated with poor outcomes in multiple tumors. In this review, we examine how the tumor microenvironment facilitates the polarization of TAMs. Additionally, we evaluate the mechanisms by which TAMs promote tumor angiogenesis, induce tumor invasion and metastasis, enhance chemotherapeutic resistance, and foster immune evasion. Lastly, we focus on therapeutic strategies that target TAMs in the treatments of cancer, including reducing monocyte recruitment, depleting or reprogramming TAMs, and targeting inhibitory molecules to increase TAM-mediated phagocytosis.
format article
author Amy J. Petty
Dwight H. Owen
Yiping Yang
Xiaopei Huang
author_facet Amy J. Petty
Dwight H. Owen
Yiping Yang
Xiaopei Huang
author_sort Amy J. Petty
title Targeting Tumor-Associated Macrophages in Cancer Immunotherapy
title_short Targeting Tumor-Associated Macrophages in Cancer Immunotherapy
title_full Targeting Tumor-Associated Macrophages in Cancer Immunotherapy
title_fullStr Targeting Tumor-Associated Macrophages in Cancer Immunotherapy
title_full_unstemmed Targeting Tumor-Associated Macrophages in Cancer Immunotherapy
title_sort targeting tumor-associated macrophages in cancer immunotherapy
publisher MDPI AG
publishDate 2021
url https://doaj.org/article/cc4260f365554db2a2b9811a54b63433
work_keys_str_mv AT amyjpetty targetingtumorassociatedmacrophagesincancerimmunotherapy
AT dwighthowen targetingtumorassociatedmacrophagesincancerimmunotherapy
AT yipingyang targetingtumorassociatedmacrophagesincancerimmunotherapy
AT xiaopeihuang targetingtumorassociatedmacrophagesincancerimmunotherapy
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