Macrophages as tools and targets in cancer therapy
Open accessAbstract
Tumour-associated macrophages are an essential component of the tumour microenvironment and have a role in the orchestration of angiogenesis, extracellular matrix remodelling, cancer cell proliferation, metastasis and immunosuppression, as well as in resistance to chemotherapeutic agents and checkpoint blockade immunotherapy. Conversely, when appropriately activated, macrophages can mediate phagocytosis of cancer cells and cytotoxic tumour killing, and engage in effective bidirectional interactions with components of the innate and adaptive immune system. Therefore, they have emerged as therapeutic targets in cancer therapy. Macrophage-targeting strategies include inhibitors of cytokines and chemokines involved in the recruitment and polarization of tumour-promoting myeloid cells as well as activators of their antitumorigenic and immunostimulating functions. Early clinical trials suggest that targeting negative regulators (checkpoints) of myeloid cell function indeed has antitumor potential. Finally, given the continuous recruitment of myelomonocytic cells into tumour tissues, macrophages are candidates for cell therapy with the development of chimeric antigen receptor effector cells. Macrophage-centred therapeutic strategies have the potential to complement, and synergize with, currently available tools in the oncology armamentarium.
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Myeloid cells are required for antigen presentation, T cell support and effective anti-tumor responses.
“However, myeloid cells are required for antigen presentation, T cell support and effective anti-tumor responses (15).”
From Cholesterol efflux protein, ABCA1, supports anticancer functions of myeloid immune cells (2026) · cites this paper as [15]
The CD40 section (page unavailable) identifies macrophages as antigen-presenting cells that can stimulate T cell-mediated immunity, and the Introduction describes their potential to activate antitumour lymphoid responses. These passages support a beneficial role for some myeloid cells, but do not establish that myeloid cells are required for antigen presentation, T cell support, or effective antitumour responses generally. (LLM, conf=0.85)
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“However, myeloid cells (MCs) are required for antigen presentation, T cell support, and effective antitumor responses ( 17 ).”
- Authors
- Mantovani, A., Allavena, P., Marchesi, F., & Garlanda, C.
- Affiliations
- Humanitas University (IT)
- University of Milan (IT)
- Corresponding author
- Mantovani, Alberto
- Venue
- Nature Reviews Drug Discovery
- Published
- 2022-08-16
- Volume
- 21
- Issue
- 11
- Pages
- 799-820
- ISSN
- 1474-1776 (ISSN-L)
- 1474-1784
- PMC
- PMC9380983
- OpenAlex
- W4291993576
- Cited by
- 1,807
- References
- 20
- Citations by year
- 2026: 333 · 2025: 512 · 2024: 605 · 2023: 332 · 2022: 25
- FWCI
- 39.13
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Licence
- Locations
- Nature Reviews Drug Discovery (publishedVersion)
- PubMed Central (publishedVersion)
- PubMed (publishedVersion)
- Queen Mary Research Online (Queen Mary University of London) (submittedVersion)
- Funders
- EuroNanoMed III
- Ministero della Salute (RF-2019, RF-2019-12369142, “5×1000”, RF-2013-02355470)
- Associazione Italiana per la Ricerca sul Cancro (5×1000, IG 21714, 21147,, 23465)
- Agencia Estatal de Investigación
- Topics
- Life Sciences › Immunology and Microbiology › Immunology › Immune cells in cancer
- Health Sciences › Medicine › Oncology › Cancer Immunotherapy and Biomarkers
- Life Sciences › Immunology and Microbiology › Immunology › Phagocytosis and Immune Regulation
- Keywords
- tumour-associated macrophages, tumor microenvironment, macrophage polarization, myeloid cell recruitment, immune checkpoint blockade, chimeric antigen receptor macrophages, tumor immunosuppression, chemoresistance, metastasis, angiogenesis, extracellular matrix remodeling
- MeSH terms
- Antineoplastic Agents, Humans, Immunotherapy, Macrophages, Neoplasms, Tumor Microenvironment
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
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