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Updated: Jul 9, 2025
Electric and Magnetic Field Devices for Stimulation of Biological Tissues
Published on: May 15, 2021
Using a developed co-culture device to evaluate the proliferation of bone marrow stem cells by stimulation with
Chia-Wei Chang1, Chih-Chin Lee2, Jen-Chung Liao3
1Department of Orthopedic Surgery, Chang Gung Memorial Hospital, Keelung Branch, Bone and Joint Research Center, Chang Gung University, Taoyuan City, Taiwan.
Backgrounds:
Bone marrow stem cell can differentiate to osteoblast by growth factors, pulsed low-intensity ultrasound and electric magnetic field. In the research, bone marrow stem cells were cultured; bone marrow stem cells in culture can be stimulated by platelet-rich plasma and electric field.
Methods:
The culture well of the co-cultivation device has a radius of 7.5 mm and a depth of 7 mm. It is divided into two sub-chambers separated by a 3 mm high and 1 mm wide barrier. The bone marrow stem cells were seeded at a density of 2 × 104 cells and the medium volume was 120μl. Platelet-rich plasma (PRP) or platelet-poor plasma (PPP) was added to the other sub-chamber at a volume of 10μl. The bone marrow stem cells were subjected to different electric fields (0 ~ 1 V/cm) at a frequency of 70 kHz for 60 min.
Results:
The highest osteogenic capacity of bone marrow stem cells was achieved by addition of PRP to electric field stimulation (0.25 V/cm) resulted in a proliferation rate of 599.78%. In electric field stimulation (0.75 V/cm) with PPP, the proliferation rate was only 10.46%.
Conclusions:
Bone marrow stem cell with PRP in the co-culture device combined with electric field at 0.25 V/cm strength significantly promoted the growth of bone marrow stem cells.
