Cited by 79Immune cells in cancerTGF-β signaling in diseasesImmunotherapy and Immune Responses

Deletion of TGF-β signaling in myeloid cells enhances their anti-tumorigenic properties

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Novitskiy, Sergey V, Pickup, Michael W, Chytil, Anna, Polosukhina, Dina, Owens, Philip, Moses, Harold L·2012·Journal of Leukocyte Biology

Abstract

Specific deletion of TGF-β receptor II in macrophages, CD11b+Gr1+, and dendritic cells inhibit tumor growth by increasing efficiency of the immune system. By crossing LysM-Cre and TGF-β type II receptor (Tgfbr2) floxed mice we achieved specific deletion of Tgfbr2 in myeloid cells (Tgfbr2MyeKO mice). S.c.-injected (LLC, EL4-OVA) and implanted (MMTV-PyMT) carcinoma cells grow slower in Tgfbr2MyeKO mice. The number of CD45+ cells in the tumor tissue was the same in both genotypes of mice, but upon analysis, the percentage of T cells (CD45+CD3+) in the KO mice was increased. By flow cytometry analysis, we did not detect any differences in the number and phenotype of TAMs, CD11b+Gr1+, and DCs in Tgfbr2MyeKO compared with Tgfbr2MyeWT mice. ELISA and qRT-PCR data showed differences in myeloid cell functions. In Tgfbr2MyeKO TAMs, TNF-α secretion was increased, basal IL-6 secretion was down-regulated, TGF-β did not induce any VEGF response, and there was decreased MMP9 and increased MMP2 and iNOS expression. TGF-β did not have any effect on CD11b+Gr1+ cells isolated from Tgfbr2MyeKO mice in the regulation of Arg, iNOS, VEGF, and CXCR4, and moreover, these cells have decreased suppressive activity relative to T cell proliferation. Also, we found that DCs from tumor tissue of Tgfbr2MyeKO mice have increased antigen-presented properties and an enhanced ability to stimulate antigen-specific T cell proliferation. We conclude that Tgfbr2 in myeloid cells has a negative role in the regulation of anti-tumorigenic functions of these cells, and deletion of this receptor decreases the suppressive function of CD11b+Gr1+ cells and increases antigen-presenting properties of DCs and anti-tumorigenic properties of TAMs.

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Crossref · 10.1189/jlb.1211639

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  • TGF-β suppresses the expression of IL-2 and its receptor by effector and memory T cells.

    “TGF-β suppresses the expression of IL-2 and its receptor by effector and memory T cells205.”

    From TGFβ biology in cancer progression and immunotherapy (2021) · cites this paper as [205]

  • CD8+ T cell proliferation requires IL-2 expression and responsiveness.

    “CD8+ T cell proliferation additionally requires interleukin (IL)-2 expression and responsiveness”

    From TGFβ biology in cancer progression and immunotherapy (2021) · cites this paper as [205]

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Authors
Novitskiy, S. V., Pickup, M. W., Chytil, A., Polosukhina, D., Owens, P., & Moses, H. L.
Affiliations
Vanderbilt University (US)
Corresponding author
Moses, Harold L
Venue
Journal of Leukocyte Biology
Published
2012-06-08
Volume
92
Issue
3
Pages
641-651
ISSN
  • 0741-5400 (ISSN-L)
  • 1938-3673
OpenAlex
W2168336731
Cited by
79
References
52
Citations by year
2026: 5 · 2025: 3 · 2024: 5 · 2023: 4 · 2022: 4 · 2021: 9 · 2020: 9 · 2019: 5 · 2018: 9 · 2017: 7 · 2016: 2 · 2015: 6 · 2014: 5 · 2013: 5 · 2012: 1
FWCI
2.37
Type
journal article
Language
en
Open access
Locations
  • Journal of Leukocyte Biology (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • U.S. National Institutes of Health (CA085492, A102162, CA126505)
  • T.J. Martell Foundation (CA068485)
Topics
  • Life Sciences › Immunology and Microbiology › Immunology › Immune cells in cancer
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › TGF-β signaling in diseases
  • Life Sciences › Immunology and Microbiology › Immunology › Immunotherapy and Immune Responses
Keywords
TGF-beta signaling, TGFBR2, myeloid cells, tumor-associated macrophages, tumor-infiltrating lymphocytes, dendritic cells, tumor immunosuppression, TNF-α, interleukin-6, vascular endothelial growth factor, MMP-9, inducible nitric oxide synthase, CXCR4, antigen presentation, T cell proliferation
MeSH terms
Receptor, Transforming Growth Factor-beta Type II, Animals, Cell Separation, Enzyme-Linked Immunosorbent Assay, Flow Cytometry, Macrophages, Neoplasms, Experimental, Signal Transduction, Transforming Growth Factor beta, Protein Serine-Threonine Kinases, Antigen Presentation, Receptors, Transforming Growth Factor beta, Mice, Knockout, Reverse Transcriptase Polymerase Chain Reaction, Myeloid Cells, Mice, Tumor Microenvironment

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