Transcriptomic profiling of human mesenchymal stem cells using a pulsed electromagnetic-wave motion bioreactor system...

Area of Science:

• Biotechnology
• Regenerative Medicine
• Cell Culture Engineering

Background:

• Traditional bioreactors using 3D scaffolds or aggregates limit cell-secreted biomolecule production.
• Scalable and efficient methods for culturing mesenchymal stem cells are crucial for therapeutic applications.

Purpose of the Study:

• To investigate the efficacy of a novel pulsed electromagnetic fields (pEMFs)-assisted wave-motion bioreactor for culturing human bone marrow-derived mesenchymal stem cells (hBMSCs).
• To evaluate the impact of dynamic pEMF (D-pEMF) on hBMSC proliferation, osteogenic differentiation, and secretion of therapeutic factors.

Main Methods:

• Culturing hBMSCs in a wave-motion bioreactor with D-pEMF stimulation (10V-1Hz, 5.82 G, 35 OPM for 30 min).
• Assessing cell proliferation kinetics and osteogenic gene expression.
• Utilizing RNA sequencing to analyze gene expression shifts in response to D-pEMF.

Main Results:

• D-pEMF significantly enhanced hBMSC proliferation compared to static culture (1x10^5 to 4.5x10^5).
• D-pEMF culture demonstrated increased osteogenic transcription factors and gene expression, indicating boosted osteogenesis.
• D-pEMF stimuli also induced ROS-scavenging properties in hBMSCs.

Conclusions:

• The combined wave-motion and D-pEMF bioreactor system promotes rapid hBMSC proliferation and induces osteogenic properties.
• This approach offers a bioactive, cost-effective, and potentially safer method for cell-based therapies without expensive materials.