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Bio-electrospraying: A potentially safe technique for delivering progenitor cells
Sambit Sahoo1, Wong Cheng Lee, James Cho Hong Goh
1NUS Tissue Engineering Program, National University of Singapore, Singapore.
Biotechnology and Bioengineering
|March 16, 2010
Summary
Bio-electrospraying safely delivers bone marrow-derived mesenchymal progenitor/stem cells (BMSC) for tissue engineering. Electrosprayed BMSCs maintain viability, proliferation, and stemness, enabling differentiation for regenerative medicine.
Area of Science:
- Biomaterials Science
- Regenerative Medicine
- Cell Biology
Background:
- Bio-electrospraying is an emerging technique for in situ cell delivery in tissue engineering.
- Bone marrow-derived mesenchymal progenitor/stem cells (BMSC) are crucial for tissue regeneration but their response to electrospraying is unknown.
Purpose of the Study:
- To investigate the effects of bio-electrospraying on BMSC viability, proliferation, and multipotency.
- To determine optimal electrospraying parameters for maintaining BMSC stemness.
Main Methods:
- BMSCs were electrosprayed at varying voltages (7.5-15 kV) and flow rates (6 mL/h).
- Cell viability was assessed using trypan blue and alamar blue assays.
- Proliferation rates and multilineage differentiation potential (adipogenic, chondrogenic, osteogenic) were evaluated.
Main Results:
- Electrospraying at 7.5-15 kV produced a stable cell spray with approximately 88% BMSC viability.
- Electrosprayed BMSCs exhibited proliferation rates comparable to native cells.
- BMSCs electrosprayed at 7.5 kV retained multipotency and differentiated successfully, showing similar gene expression to controls.
Conclusions:
- Bio-electrospraying is a safe and effective method for delivering BMSCs in tissue engineering.
- The technique preserves BMSC viability, proliferation, and differentiation potential, supporting regenerative medicine applications.
