Study summary · research use only
Mechano growth factor E peptide regulates migration and differentiation of bone marrow mesenchymal stem cells
Plain-language summary
Paraphrased from the published abstract below — not a verdict on whether anything works.
In this rat study, the authors investigated effects of mechano growth factor (MGF) E peptide on rat bone marrow mesenchymal stem cells (rBMSCs). The abstract reports that MGF E peptide treatment had no effect on BMSC proliferation but, in wound-healing and transwell assays, significantly enhanced rBMSC migration. It also reduced expression of osteogenic genes and increased adipogenic genes. The authors describe that phosphorylation of Erk1/2 was activated by MGF E peptide, and that blocking either Erk1/2 or the IGF1 receptor repressed the migration effect, concluding the migration effect depends on the IGF1 receptor via the Erk1/2 pathway.
Abstract
IGF1Ec in humans or IGF1Eb in rodents (known as mechano growth factor (MGF)) has a unique E domain, and the C-terminal end of the E domain (MGF E peptide) plays important roles in proliferation, migration and differentiation of many cell types. Bone marrow mesenchymal stem cells (BMSCs) have multiple differentiation potentials and are considered as perfect seed cells for tissue repair. But the role of MGF E peptide on BMSCs is seldom investigated and the mechanism is still unclear. In this study, we investigated the effects of MGF E peptide on rat BMSCs (rBMSCs). Our results revealed that treatment with MGF E peptide had no effect on BMSC proliferation. However, both wound-healing and transwell assays indicated that MGF E peptide could significantly enhance rBMSCs migration ability. Further analysis indicated that MGF E peptide also reduced the expression levels of osteogenic genes, but increased the expression levels of adipogenic genes. Analysis of molecular mechanism showed that phosphorylation-Erk1/2 was activated by MGF E peptide and blockage of either Erk1/2 or IGF1 receptor could repress the migration effect of MGF E peptide. In conclusion, MGF E peptide is able to inhibit osteogenic differentiation but promote adipogenic differentiation. In addition, the migration effect of MGF E peptide on rBMSCs depends on IGF1 receptor via Erk1/2 signal pathway.
pepmg summarizes the peer-reviewed literature and links to every source — it sells nothing, ships nothing, and gives no medical, dosing, or human-use guidance. Don't just trust this summary: follow the citation to its source and read it yourself. Research use only.