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Published on: February 28, 2017
Jagged1 contained in MSC-derived small extracellular vesicles promotes squamous differentiation of cervical cancer by
Weizhao Li1,2, Xunzhi Zhang3, Tianshun Gao1
1Department of Gynecology, Pelvic Floor Disorders Center, Scientific Research Center, The Seventh Affiliated Hospital of Sun Yat-Sen University, Shenzhen, China.
Purpose:
Cervical cancer is the fourth most common cancer in women and poses a major threat to women's health, urgently requiring new treatment methods.
Methods:
This study first successfully extracted and identified small extracellular vesicles secreted by human umbilical cord-derived mesenchymal stem cells. We studied the effects of MSC-sEV on the squamous differentiation levels of cervical cancer CaSki cells in vitro, and explored the effects of MSC-sEV on the NOTCH pathway, the growth, proliferation, migration abilities and squamous differentiation levels of cervical cancer cells. The roles of MSC-sEV were also verified in human keratinocyte HaCaT cells.
Results:
The results showed that Jagged1 protein on MSC-sEV can bind to NOTCH1 on cervical cancer cells, activate NOTCH signaling, and promote squamous differentiation levels in CaSki cells, thus inhibiting the growth, proliferation and migration abilities of CaSki cells. MSC-sEV can also activate the NOTCH pathway in HaCaT cells, but promote the viability of HaCaT cells.
Conclusion:
MSC-sEV can activate the NOTCH pathway to promote squamous differentiation of CaSki cells and inhibit the growth proliferation and migration abilities of CaSki cells which may be a new mechanism for cervical cancer treatment.
Insights
Mesenchymal stem cell-derived small extracellular vesicles (MSC-sEV) show promise for cervical cancer treatment by activating the NOTCH pathway, promoting squamous differentiation, and inhibiting cancer cell growth and migration.
Area of Science:
- Oncology
- Cell Biology
- Biotechnology
Background:
- Cervical cancer is a significant global health concern for women, necessitating novel therapeutic strategies.
- Current treatments face limitations, driving research into innovative approaches like stem cell-derived therapies.
Purpose of the Study:
- To investigate the therapeutic potential of small extracellular vesicles derived from human umbilical cord mesenchymal stem cells (MSC-sEV) in cervical cancer.
- To elucidate the effects of MSC-sEV on cervical cancer cell lines, focusing on squamous differentiation and the NOTCH signaling pathway.
Main Methods:
- Extraction and identification of MSC-sEV from human umbilical cord-derived mesenchymal stem cells.
- In vitro assessment of MSC-sEV effects on CaSki (cervical cancer) and HaCaT (keratinocyte) cell lines.
- Analysis of NOTCH pathway activation, cell growth, proliferation, migration, and squamous differentiation.
Main Results:
- MSC-sEV, specifically Jagged1 protein, bind to NOTCH1 on cervical cancer cells, activating the NOTCH pathway.
- MSC-sEV promote squamous differentiation in CaSki cells, inhibiting their growth, proliferation, and migration.
- MSC-sEV activate the NOTCH pathway in HaCaT cells, enhancing their viability.
Conclusions:
- MSC-sEV represent a potential novel therapeutic agent for cervical cancer by activating the NOTCH pathway.
- The mechanism involves promoting squamous differentiation and inhibiting the growth, proliferation, and migration of cervical cancer cells.
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