» Articles » PMID: 39998754

Tumor-infiltrating Myeloid Cells; Mechanisms, Functional Significance, and Targeting in Cancer Therapy

Overview
Publisher Springer
Date 2025 Feb 25
PMID 39998754
Authors
Affiliations
Soon will be listed here.
Abstract

Tumor-infiltrating myeloid cells (TIMs), which encompass tumor-associated macrophages (TAMs), tumor-associated neutrophils (TANs), myeloid-derived suppressor cells (MDSCs), and tumor-associated dendritic cells (TADCs), are of great importance in tumor microenvironment (TME) and are integral to both pro- and anti-tumor immunity. Nevertheless, the phenotypic heterogeneity and functional plasticity of TIMs have posed challenges in fully understanding their complexity roles within the TME. Emerging evidence suggested that the presence of TIMs is frequently linked to prevention of cancer treatment and improvement of patient outcomes and survival. Given their pivotal function in the TME, TIMs have recently been recognized as critical targets for therapeutic approaches aimed at augmenting immunostimulatory myeloid cell populations while depleting or modifying those that are immunosuppressive. This review will explore the important properties of TIMs related to immunity, angiogenesis, and metastasis. We will also document the latest therapeutic strategies targeting TIMs in preclinical and clinical settings. Our objective is to illustrate the potential of TIMs as immunological targets that may improve the outcomes of existing cancer treatments.

References
1.
Wang Y, Johnson K, Gatti-Mays M, Li Z . Emerging strategies in targeting tumor-resident myeloid cells for cancer immunotherapy. J Hematol Oncol. 2022; 15(1):118. PMC: 9420297. DOI: 10.1186/s13045-022-01335-y. View

2.
Clappaert E, Murgaski A, Van Damme H, Kiss M, Laoui D . Diamonds in the Rough: Harnessing Tumor-Associated Myeloid Cells for Cancer Therapy. Front Immunol. 2018; 9:2250. PMC: 6186813. DOI: 10.3389/fimmu.2018.02250. View

3.
Peczek P, Gajda M, Rutkowski K, Fudalej M, Deptala A, Badowska-Kozakiewicz A . Cancer-associated inflammation: pathophysiology and clinical significance. J Cancer Res Clin Oncol. 2022; 149(6):2657-2672. PMC: 9579684. DOI: 10.1007/s00432-022-04399-y. View

4.
Hu H, Hang J, Han T, Zhuo M, Jiao F, Wang L . The M2 phenotype of tumor-associated macrophages in the stroma confers a poor prognosis in pancreatic cancer. Tumour Biol. 2016; 37(7):8657-64. DOI: 10.1007/s13277-015-4741-z. View

5.
Mouchemore K, Anderson R, Hamilton J . Neutrophils, G-CSF and their contribution to breast cancer metastasis. FEBS J. 2017; 285(4):665-679. DOI: 10.1111/febs.14206. View