Effects of low-intensity electromagnetic fields on the proliferation and differentiation of cultured mouse bone marrow stromal cells

Physical Therapy
Cheng ZhongRong-Xin He

Abstract

Electromagnetic fields (EMFs) used in stem-cell tissue engineering can help elucidate their biological principles. The aim of this study was to investigate the effects of low-intensity EMFs on cell proliferation, differentiation, and cycle in mouse bone marrow stromal cells (BMSCs) and the in vivo effects of EMFs on BMSC. Harvested BMSCs were cultured for 3 generations and divided into 4 groups. The methylthiotetrazole (MTT) assay was used to evaluate cell proliferation, and alkaline phosphatase activity was measured via a colorimetric assay on the 3rd, 7th, and 10th days. Changes in cell cycle also were analyzed on the 7th day, and bone nodule formation was analyzed on the 12th day. Additionally, the expression of the collagen I gene was examined by reverse transcription-polymerase chain reaction (RT-PCR) on the 10th day. The BMSCs of the irradiated group and the control group were transplanted into cortical bone of different mice femurs separately, with poly(lactic-co-glycolic acid) (PLGA) serving as a scaffold. After 4 and 8 weeks, bone the bone specimens of mice were sliced and stained by hematoxylin and eosin separately. The results showed that EMFs (0.5 mT, 50 Hz) accelerated cellular proliferation, enhanced cellular diff...Continue Reading

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Citations

May 9, 2014·Global Advances in Health and Medicine : Improving Healthcare Outcomes Worldwide·David Muehsam, Carlo Ventura
Jun 30, 2016·Electromagnetic Biology and Medicine·Anna-Maria BiqueMervi Paulasto-Kröckel
Jan 17, 2020·Bioelectromagnetics·Alyaa I AldebsJaime E Ramirez-Vick

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