Mesenchymal stem cells in the osteosarcoma microenvironment: their biological properties, influence on tumor growth, and therapeutic implications
Open accessAbstract
During tumorigenesis and development, participation of the tumor microenvironment is not negligible. As an important component in the tumor microenvironment, mesenchymal stem cells (MSCs) have been corroborated to mediate proliferation, metastasis, and drug resistance in many cancers, including osteosarcoma. What's more, because of tumor site tropism, MSCs can be engineered to be loaded with therapeutic agents so that drugs can be precisely delivered to tumor lesions. In this review, we mainly discuss recent advances concerning the functions of MSCs in osteosarcoma and their possible clinical applications in the future.
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In a mouse OS model, direct injections of MSCs into the OS tumor site exhibited a significant decrease in local recurrence and a hinderance of OS tumor cell growth compared to intravenous MSCs, MSCs at the surgical area, and no MSCs.
“The mice receiving direct injections of MSCs into the OS tumor site exhibited a significant decrease in local recurrence and a hinderance of OS tumor cell growth compared to the other groups, suggesting that MSCs could be promising for enhancing bone healing in patients with lesions after surgery.”
From Mesenchymal Stem/Stromal Cells: Immunomodulatory and Bone Regeneration Potential after Tumor Excision in Osteosarcoma Patients (2023) · cites this paper as [102]
In “Promoting bone reconstruction in OS patients” (page not provided), the review describes intravenous MSCs, MSCs at the surgical area, and no MSCs—not a direct tumor-site injection group. It reports no apparent difference in local recurrence or recurrent-tumor size among the three groups, contrary to the claimed significant reduction and inhibited growth. (LLM, conf=0.91)
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Experimental — accuracy not yet measuredLow concentrations of injected ASCs into a tumor xenograft led to inhibition of OS tumor growth, while higher concentrations led to stimulation of tumor growth.
“They found that low concentrations of injected ASCs into a tumor xenograft led to the inhibition of OS tumor growth, while higher concentrations of injected ASCs led to the stimulation of tumor growth [102,103,104,105].”
From Mesenchymal Stem/Stromal Cells: Immunomodulatory and Bone Regeneration Potential after Tumor Excision in Osteosarcoma Patients (2023) · cites this paper as [102]
In “Promoting bone reconstruction in OS patients” (page unavailable), the review reports that ASCs can exacerbate osteosarcoma growth and cautions that the number of MSCs administered matters. It does not report a xenograft experiment in which low ASC concentrations inhibit growth while higher concentrations stimulate it. (LLM, conf=0.79)
Experimental — accuracy not yet measuredMSCs could be promising for enhancing bone healing in patients with lesions after surgery.
“The mice receiving direct injections of MSCs into the OS tumor site exhibited a significant decrease in local recurrence and a hinderance of OS tumor cell growth compared to the other groups, suggesting that MSCs could be promising for enhancing bone healing in patients with lesions after surgery.”
From Mesenchymal Stem/Stromal Cells: Immunomodulatory and Bone Regeneration Potential after Tumor Excision in Osteosarcoma Patients (2023) · cites this paper as [102]
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“Tumor cells Tumor cells, as the key components of TME, which can actively interact with the immune system and promote the formation of inhibitory immune networks [17].”
BackgroundZhao, W., Qin, P., Zhang, D., Cui, X., Gao, J., Yu, Z., Chai, Y., Wang, J., & Li, J. (2019) · Aging · doi:10.18632/aging.102406 · Cited by 115 · see citing works
Baron, M., Drohat, P., Crawford, B., Hornicek, F. J., Best, T. M., & Kouroupis, D. (2023) · Bioengineering · doi:10.3390/bioengineering10101187 · Cited by 19 · see citing works
- Authors
- Zheng, Y., Wang, G., Chen, R., Hua, Y., & Cai, Z.
- Affiliations
- Shanghai Jiao Tong University (CN)
- Corresponding author
- Wang, Gangyang
- Hua, Yingqi
- Cai, Zhengdong
- Venue
- Stem Cell Research & Therapy
- Published
- 2018-01-31
- Volume
- 9
- Issue
- 1
- Pages
- 22-22
- ISSN
- 1757-6512 (ISSN-L)
- PMC
- PMC5793392
- OpenAlex
- W2797890752
- Cited by
- 127
- References
- 6
- Citations by year
- 2026: 10 · 2025: 13 · 2024: 13 · 2023: 19 · 2022: 12 · 2021: 19 · 2020: 23 · 2019: 11 · 2018: 7
- FWCI
- 2.15
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Licence
- cc-by
- Locations
- Stem Cell Research & Therapy (publishedVersion, cc-by)
- Europe PMC (PubMed Central) (publishedVersion, cc-by)
- PubMed Central (publishedVersion, cc-by)
- PubMed (publishedVersion)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
- Funders
- National Natural Science Foundation of China (81202115)
- Topics
- Health Sciences › Medicine › Genetics › Mesenchymal stem cell research
- Health Sciences › Medicine › Oncology › Cancer Cells and Metastasis
- Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Sarcoma Diagnosis and Treatment
- Keywords
- mesenchymal stem cells, osteosarcoma, tumor microenvironment, tumor growth, metastasis, drug resistance, tumor tropism, targeted drug delivery, cancer therapy
- MeSH terms
- Animals, Bone Neoplasms, Humans, Neoplasm Metastasis, Osteosarcoma, Drug Resistance, Neoplasm, Cell Proliferation, Tumor Microenvironment, Mesenchymal Stem Cells
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