Cited by 85Mesenchymal stem cell researchCancer Cells and MetastasisHematopoietic Stem Cell Transplantation

The in vitro and in vivo effects of human umbilical cord mesenchymal stem cells on the growth of breast cancer cells

Ma, Yi, Hao, Xiaomeng, Zhang, Sheng, Zhang, Jin·2012·Breast Cancer Research and Treatment

Abstract

The purpose of the study was to detect the effect and possible mechanism of human umbilical cord mesenchymal stem cells (hUCMSCs) on the in vitro and in vivo growth of stem cells isolated from primary human breast cancer cells and cell lines MDA-MB-231 and MCF-7. Primary human breast cancer cells and MDA-MB-231 and MCF-7 cells were sorted in vitro using flow cytometry, and the ESA+, CD44+, CD24-/low cells were isolated as breast cancer stem cells (CSCs). The inhibitory effect of hUCMSCs on CSCs was examined using the Cell Counting Kit-8 cell proliferation and soft agar colony formation assay. In vivo tumor inhibition was studied using a severe combined immunodeficient xenograft mouse model transplanted with MDA-MB-231 breast CSCs. The expression of phosphoinositide 3-kinase (PI3K) and AKT was examined in the xenograft tumors using immunohistochemistry. The number of colonies formed by breast CSCs co-cultured with hUCMSCs at the bottom of soft agar was significantly lower than those formed by the control group (P < 0.01). Compared with the control group, the CSCs co-cultured with hUCMSCs showed a higher number of cells in the G2-M phase (P < 0.05) and an increased number of apoptotic cells (P < 0.01). The mice in the medium- and high-concentration hUCMSC treatment groups exhibited clearly reduced tumor volume and tumor weight, compared with the control group (P < 0.01). Compared with the saline group, the xenograft tumor tissues from the mice treated with different concentrations of hUCMSCs showed significantly reduced levels of PI3K and AKT proteins (P < 0.001). In conclusion, hUCMSC significantly inhibited the growth of breast CSCs in vitro and in vivo. The underlying mechanism is likely related to cell cycle arrest, induction of tumor cell apoptosis, and suppressed activities of PI3K and AKT protein kinases.

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Crossref · 10.1007/s10549-011-1774-x

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  • Disruption of PI3K/AKT via upregulation of PTEN and of WNT/β-catenin signaling by MSC-secreted DKK-1 contributes to inhibition of tumor cell migration, invasion, and survival.

    “the disruption of the cancer-associated signaling pathways, such as PI3K/AKT [107], [113], via upregulation of PTEN, and of WNT/β-catenin signaling pathway by MSCs-secreted antagonist of the Wnt signaling DKK-1 [114] contributes to the inhibition of tumor cell migration, invasion, and survival [114], [115], [116], [117], [118].”

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Authors
Ma, Y., Hao, X., Zhang, S., & Zhang, J.
Affiliations
Tianjin Medical University Cancer Institute and Hospital (CN)
Corresponding author
Zhang, Jin
Venue
Breast Cancer Research and Treatment
Published
2011-09-23
Volume
133
Issue
2
Pages
473-485
ISSN
  • 0167-6806 (ISSN-L)
  • 1573-7217
OpenAlex
W2158685508
Cited by
85
References
37
Citations by year
2026: 1 · 2025: 3 · 2024: 7 · 2023: 5 · 2022: 7 · 2021: 4 · 2020: 9 · 2019: 3 · 2018: 9 · 2017: 2 · 2016: 7 · 2015: 12 · 2014: 5 · 2013: 8 · 2012: 3
FWCI
2.60
Type
journal article
Language
en
Open access
closed
Locations
  • Breast Cancer Research and Treatment (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Academy of Medical Sciences
  • Chinese Academy of Sciences
  • China Scholarship Council
  • Chinese Academy of Medical Sciences
Topics
  • Health Sciences › Medicine › Genetics › Mesenchymal stem cell research
  • Health Sciences › Medicine › Oncology › Cancer Cells and Metastasis
  • Health Sciences › Medicine › Hematology › Hematopoietic Stem Cell Transplantation
Keywords
human umbilical cord mesenchymal stem cells, breast cancer stem cells, tumor growth inhibition, PI3K/Akt signaling, cell cycle arrest, apoptosis, MDA-MB-231 cells, MCF-7 cells, tumor xenografts, co-culture
MeSH terms
Animals, Breast Neoplasms, Cell Transformation, Neoplastic, Female, Fetal Blood, Humans, Mice, Nude, Neoplastic Stem Cells, Mice, SCID, Apoptosis, Phosphatidylinositol 3-Kinases, Xenograft Model Antitumor Assays, Cell Line, Tumor, Cell Proliferation, Proto-Oncogene Proteins c-akt, Mice, Cell Cycle Checkpoints, Mesenchymal Stem Cells

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