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Updated: Jan 31, 2026
05:10
Purification, Expansion, and Flow Cytometry-Based Phenotyping of Mouse Derived Bone Marrow Mesenchymal Stem Cells
Published on: July 11, 2025
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Bone marrow mesenchymal stem cells: improving transgene expression level, transfection efficiency and cell viability.
Carlos Gonzalez Villarreal1, Salvador Said Fernandez, Adolfo Soto Dominguez
1Autonomous University of Nuevo León, School of Medicine, Department of Biochemistry and Molecular Medicine, Monterrey Nuevo Leon, Mexico.
Summary
Increasing transfection reagent volume and plasmid DNA mass significantly enhances mesenchymal stem cell (MSC) transfection efficiency and transgene expression without compromising cell viability, offering a promising approach for cancer treatment. This optimization boosts the utility of MSCs in regenerative medicine.
Area of Science:
- Biotechnology
- Regenerative Medicine
- Cancer Therapy
Background:
- Advanced cancer treatment relies on surgery and chemotherapy, which have significant toxicity and limited efficacy.
- Genetically engineered mesenchymal stem cells (MSCs) present a promising alternative for cancer treatment.
- Current methods for genetically engineering MSCs using transfection reagents suffer from consistently low transfection efficiency.
Purpose of the Study:
- To investigate the effects of increasing transfection reagent volume and plasmid DNA mass on gene expression, transfection efficiency, and cell viability.
- To optimize transfection protocols for enhanced mesenchymal stem cell engineering in the context of cancer therapy.
Main Methods:
- Mouse bone marrow MSCs were transfected using Xfect®, Turbofect®, or Lipofectamine 3000® with a plasmid encoding green fluorescent protein (GFP).
- A modified Xfect protocol was also evaluated.
- Transfection efficiency, GFP expression levels, and cell viability were assessed, alongside a calculated performance index.
Main Results:
- Doubling reagent volume, plasmid DNA mass, or both, improved transfection efficiency to 70%.
- Cell viability remained unaffected by these increased quantities.
- The performance index increased by 47.7% compared to the original Xfect protocol.
Conclusions:
- Transfection efficiency, transgene expression, and cell viability can be significantly enhanced by exceeding manufacturer-recommended quantities of transfection agents and plasmid DNA.
- Optimized transfection protocols are crucial for advancing the therapeutic potential of genetically engineered MSCs in regenerative medicine and cancer treatment.
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