Cited by 2,463Immune cells in cancerGlioma Diagnosis and TreatmentNeuroinflammation and Neurodegeneration Mechanisms

CSF-1R inhibition alters macrophage polarization and blocks glioma progression

Open access
Pyonteck, Stephanie M, Akkari, Leila, Schuhmacher, Alberto J, Bowman, Robert L, Sevenich, Lisa, Quail, Daniela F, Olson, Oakley C, Quick, Marsha L +12 more·2013·Nature Medicine

Abstract

Glioblastoma multiforme (GBM) comprises several molecular subtypes, including proneural GBM. Most therapeutic approaches targeting glioma cells have failed. An alternative strategy is to target cells in the glioma microenvironment, such as tumor-associated macrophages and microglia (TAMs). Macrophages depend on colony stimulating factor-1 (CSF-1) for differentiation and survival. We used an inhibitor of the CSF-1 receptor (CSF-1R) to target TAMs in a mouse proneural GBM model, which significantly increased survival and regressed established tumors. CSF-1R blockade additionally slowed intracranial growth of patient-derived glioma xenografts. Surprisingly, TAMs were not depleted in treated mice. Instead, glioma-secreted factors, including granulocyte-macrophage CSF (GM-CSF) and interferon-γ (IFN-γ), facilitated TAM survival in the context of CSF-1R inhibition. Expression of alternatively activated M2 markers decreased in surviving TAMs, which is consistent with impaired tumor-promoting functions. These gene signatures were associated with enhanced survival in patients with proneural GBM. Our results identify TAMs as a promising therapeutic target for proneural gliomas and establish the translational potential of CSF-1R inhibition for GBM.

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  • Inhibition of CSF-1R leads to a phenotypic shift in microglia from anti-inflammatory/homeostatic to primed/activated.

    “Inhibition of CSF-1R has been shown to lead to a phenotypic shift in microglia from anti-inflammatory/homeostatic to primed/activated [43].”

    From Loss of homeostatic microglial phenotype in CSF1R-related Leukoencephalopathy (2020) · cites this paper as [43]

    The Results section, “CSF-1R inhibition reduces M2 macrophage polarization in treated gliomas” (page not specified), reports reduced M2-associated gene expression in glioma-associated macrophages and similar results in microglia cell lines. It does not establish a shift of microglia from a homeostatic state to a primed or activated state; the same section says M1 activation genes were generally not upregulated. (LLM, conf=0.88)

    Experimental — accuracy not yet measured
  • The inflammatory phenotype observed in HDLS has been reported in other studies investigating consequences of loss of CSF-1 signaling.

    “In addition, the inflammatory phenotype we observe in HDLS has been reported in other studies investigating consequences of loss of CSF-1 signaling [16, 43].”

    From Loss of homeostatic microglial phenotype in CSF1R-related Leukoencephalopathy (2020) · cites this paper as [43]

    The Results section on macrophage polarization reports that CSF-1R inhibition reduced M2-associated markers in treated gliomas, with IL-1β as an exception among M1-associated genes. It does not report an HDLS-like inflammatory phenotype; the same passage says other M1 genes were not correspondingly upregulated. Page numbers are unavailable in our copy. (LLM, conf=0.84)

    Experimental — accuracy not yet measured

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1 of the 72 references couldn’t be matched to a known paper.

Research works printed but not linked: 1

  1. [14]Coniglio SJ Microglial stimulation of glioblastoma invasion involves EGFR and CSF-1R signaling Mol Med 2012 18 519 527 22294205 PMC3356419

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Authors
Pyonteck, S. M., Akkari, L., Schuhmacher, A. J., Bowman, R. L., Sevenich, L., Quail, D. F., Olson, O. C., Quick, M. L., Huse, J. T., Teijeiro, V., Setty, M., Leslie, C. S., Oei, Y., Pedraza, A., Zhang, J., Brennan, C. W., Sutton, J. C., Holland, E. C., Daniel, D., & Joyce, J. A.
Affiliations
Memorial Sloan Kettering Cancer Center (US)
Corresponding author
Joyce, Johanna A
Venue
Nature Medicine
Published
2013-09-22
Volume
19
Issue
10
Pages
1264-1272
ISSN
  • 1078-8956 (ISSN-L)
  • 1546-170X
OpenAlex
W1980485314
Cited by
2,463
References
72
Citations by year
2026: 169 · 2025: 205 · 2024: 226 · 2023: 268 · 2022: 243 · 2021: 278 · 2020: 211 · 2019: 183 · 2018: 160 · 2017: 142 · 2016: 142 · 2015: 117 · 2014: 98 · 2013: 8 · 2012: 1
FWCI
67.34
Type
journal article
Language
en
Open access
Locations
  • Nature Medicine (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Cancer Institute (F31CA167863, F31CA171384, U54CA126518, U54CA148967, CA148967, CA 126518)
  • National Institute of General Medical Sciences (T32GM008539)
Topics
  • Life Sciences › Immunology and Microbiology › Immunology › Immune cells in cancer
  • Health Sciences › Medicine › Genetics › Glioma Diagnosis and Treatment
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
Keywords
CSF1R inhibition, colony-stimulating factor 1 receptor, tumor-associated macrophages, macrophage polarization, proneural glioblastoma, glioma microenvironment, M2 macrophages, GM-CSF, interferon-gamma, macrophage survival, patient-derived xenografts, prognostic gene signature, glioma treatment
MeSH terms
Animals, Brain Neoplasms, Glioblastoma, Macrophages, Signal Transduction, Receptor, Macrophage Colony-Stimulating Factor, Disease Progression, Mice

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