Related Experiment Video
Updated: May 12, 2026
Isolation and Cultivation of Mandibular Bone Marrow Mesenchymal Stem Cells in Rats
Published on: August 25, 2020
Morroniside promotes bone marrow mesenchymal stem cell proliferation in rats
1Department of Orthopedic Surgery, The Fourth Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, PR China. naiwuhuchina@yeah.net
Abstract:
The aim of this study was to explore the mechanism underlying the promotive effect of morroniside on rat mesenchymal stem cell (RMSC) proliferation and to provide an experimental basis for the development of potential new drugs. RMSCs were obtained from the bone marrow of Sprague-Dawley rats aged 3-4 months. The proliferation of primary and subcultured RMSCs in the high‑, medium‑ and low‑concentration morroniside intervention and blank control groups was observed using light microscopy. Cell proliferation and survival conditions were detected using methyl thiazolyl tetrazolium (MTT) colorimetric tests. Light microscopy and the MTT assay revealed that RMSC adherence time in the morroniside groups was shorter compared with that of the control group. Twelve hours after the media of primary RMSCs were changed, the number of adherent cells in the morroniside groups increased and an elongated cell morphology was observed. The cells at the fourth passage in the morroniside groups fused completely 12‑16 h after inoculation and then rapidly entered into the logarithmic phase. The primary RMSCs of the morroniside intervention groups grew into typical bone marrow mesenchymal stem cell (BMSC) colonies after 4 days of morroniside treatment and their fusion rate had reached 80% after 9‑11 days. By contrast, the cell fusion rate of the control group only reached 75-80% after 14 days of morroniside treatment. Morroniside exhibited a similar promotive effect on proliferation in primary and subcultured RMSCs. Morroniside may promote RMSC proliferation through secreted factors, cell-to-cell interactions and/or the interactions between cellular adhesion molecules and extracellular matrices (ECMs). However, the specific mechanism underlying this effect remains to be fully elucidated.
Insights
Morroniside enhances rat mesenchymal stem cell (RMSC) proliferation by promoting cell growth and fusion. Further research is needed to fully elucidate the underlying mechanisms of this promising therapeutic agent.
Area of Science:
- Stem Cell Biology
- Pharmacology
- Biochemistry
Background:
- Rat mesenchymal stem cells (RMSCs) are crucial for regenerative medicine.
- Morroniside is a compound with potential therapeutic applications.
- Understanding morroniside's effect on RMSC proliferation is key for drug development.
Purpose of the Study:
- To investigate the mechanism by which morroniside promotes RMSC proliferation.
- To establish an experimental foundation for developing new drugs based on morroniside.
Main Methods:
- Isolation and culture of RMSCs from Sprague-Dawley rats.
- Intervention with varying concentrations of morroniside.
- Observation of cell proliferation using light microscopy.
- Assessment of cell viability and proliferation via MTT assays.
Main Results:
- Morroniside treatment reduced RMSC adherence time but increased cell numbers and elongated morphology.
- Faster cell fusion and entry into the logarithmic growth phase were observed in morroniside-treated groups.
- Morroniside accelerated the formation of bone marrow mesenchymal stem cell (BMSC) colonies and increased fusion rates compared to controls.
Conclusions:
- Morroniside significantly promotes the proliferation of both primary and subcultured RMSCs.
- Potential mechanisms include promotion via secreted factors, cell-to-cell interactions, or cell-matrix interactions.
- The precise molecular mechanisms require further comprehensive investigation.
