Cited by 244Mesenchymal stem cell researchAngiogenesis and VEGF in CancerCancer Cells and Metastasis

Mesenchymal Stromal Cells Promote Tumor Growth through the Enhancement of Neovascularization

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Suzuki, Kazuhiro, Sun, Ruowen, Origuchi, Makoto, Kanehira, Masahiko, Takahata, Takenori, Itoh, Jugoh, Umezawa, Akihiro, Kijima, Hiroshi +2 more·2011·Molecular Medicine

Abstract

Mesenchymal stromal cells (MSCs), also called mesenchymal stem cells, migrate and function as stromal cells in tumor tissues. The effects of MSCs on tumor growth are controversial. In this study, we showed that MSCs increase proliferation of tumor cells in vitro and promote tumor growth in vivo. We also further analyzed the mechanisms that underlie these effects. For use in in vitro and in vivo experiments, we established a bone marrow-derived mesenchymal stromal cell line from cells isolated in C57BL/6 mice. Effects of murine MSCs on tumor cell proliferation in vitro were analyzed in a coculture model with B16-LacZ cells. Both coculture with MSCs and treatment with MSC-conditioned media led to enhanced growth of B16-LacZ cells, although the magnitude of growth stimulation in cocultured cells was greater than that of cells treated with conditioned media. Co-injection of B16-LacZ cells and MSCs into syngeneic mice led to increased tumor size compared with injection of B16-LacZ cells alone. Identical experiments using Lewis lung carcinoma (LLC) cells instead of B16-LacZ cells yielded similar results. Consistent with a role for neovascularization in MSC-mediated tumor growth, tumor vessel area was greater in tumors resulting from co-injection of B16-LacZ cells or LLCs with MSCs than in tumors induced by injection of cancer cells alone. Co-injected MSCs directly supported the tumor vasculature by localizing close to vascular walls and by expressing an endothelial marker. Furthermore, secretion of leukemia inhibitory factor, macrophage colony-stimulating factor, macrophage inflammatory protein-2 and vascular endothelial growth factor was increased in cocultures of MSCs and B16-LacZ cells compared with B16-LacZ cells alone. Together, these results indicate that MSCs promote tumor growth both in vitro and in vivo and suggest that tumor promotion in vivo may be attributable in part to enhanced angiogenesis.

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Crossref · 10.2119/molmed.2010.00157

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  • Injection of MSC subcutaneously develops tumor growth and neovascularization in syngeneic mouse models by promoting tumor vasculature and secreting proangiogenic factors.

    “Moreover, newer studies have depicted that injection of MSC subcutaneously develops tumor growth and neovascularization in syngeneic mouse models by promoting tumor vasculature and secreting proangiogenic factors [110].”

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Authors
Suzuki, K., Sun, R., Origuchi, M., Kanehira, M., Takahata, T., Itoh, J., Umezawa, A., Kijima, H., Fukuda, S., & Saijo, Y.
Affiliations
  • Hirosaki University (JP)
  • Tohoku University (JP)
  • National Center For Child Health and Development (JP)
Corresponding author
Saijo, Yasuo
Venue
Molecular Medicine
Published
2011-03-11
Volume
17
Issue
7-8
Pages
579-587
ISSN
  • 1076-1551 (ISSN-L)
  • 1528-3658
OpenAlex
W2207758069
Cited by
244
References
38
Citations by year
2026: 6 · 2025: 12 · 2024: 11 · 2023: 10 · 2022: 12 · 2021: 17 · 2020: 24 · 2019: 19 · 2018: 25 · 2017: 14 · 2016: 25 · 2015: 16 · 2014: 21 · 2013: 12 · 2012: 17
FWCI
8.44
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • Molecular Medicine (publishedVersion, cc-by)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Japan Society for the Promotion of Science (16022206, 20390229, 23790895, 22659160)
  • RIKEN
Topics
  • Health Sciences › Medicine › Genetics › Mesenchymal stem cell research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Angiogenesis and VEGF in Cancer
  • Health Sciences › Medicine › Oncology › Cancer Cells and Metastasis
Keywords
mesenchymal stem cells, tumor growth, tumor angiogenesis, angiogenesis, tumor cell proliferation, bone marrow-derived stromal cells, Lewis lung carcinoma, leukemia inhibitory factor, macrophage colony-stimulating factor, CXCL2, vascular endothelial growth factor, tumor vasculature
MeSH terms
Animals, Cells, Cultured, Female, Flow Cytometry, Mice, Transgenic, Neoplasm Transplantation, Neoplasms, Experimental, Neovascularization, Pathologic, Macrophage Colony-Stimulating Factor, Microscopy, Confocal, Coculture Techniques, Antigens, CD34, Vascular Endothelial Growth Factor A, Mesenchymal Stem Cell Transplantation, Cell Line, Tumor, Tumor Burden, Cell Proliferation, Green Fluorescent Proteins, Mice, Chemokine CXCL2, Mesenchymal Stem Cells

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