Journal of Oral Science Research ›› 2023, Vol. 39 ›› Issue (3): 242-248.DOI: 10.13701/j.cnki.kqyxyj.2023.03.011

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Preparation and Osteogenic Properties of Melatonin-loaded Composite Barrier Membrane

LI Simei, LI Wanxin, YIN Lihua*   

  1. School of Stomatology, Lanzhou University, Lanzhou 730000, China
  • Received:2022-10-27 Online:2023-03-28 Published:2023-03-21

Abstract: Objective: To explore the physical and chemical properties of nano-barrier membranes loaded with different concentrations of melatonin (MT) and explore their effect on the proliferation and osteogenic differentiation of mouse embryonic osteoblast precursor cells (MC3T3-E1). Methods: SF/PLCL/MT biofilms loaded with different concentrations of MT (0, 0.01, 0.05, and 0.1 mol/L) were prepared by electrospinning technology. SEM, water contact angle, and FTIR were used to characterize the samples, and the degradation and sustained-release behaviors of barrier membranes were measured in an in vitro environment. The antioxidant capacity of the samples was determined by dpph assay. In addition, the biocompatibility of the samples was evaluated by CCK-8 and cell adhesion assay. ALP activity was detected to analyze the key enzymes of osteogenic differentiation, and RT-qPCR was used to test the mRNA expression levels of ALP, OCN, OPN, and Runx2. Results: MT was successfully loaded in SP and sustained for 27 days. The oxidation resistance of SP/MT was positively associated with the concentration of MT. In addition, the expression levels of key enzymes and mRNA related to osteogenic differentiation of SP/MT-0.1 mol/L were significantly higher than those of control group (P<0.05). Conclusion: SP/MT-0.1 mol/L barrier membrane has excellent physicochemical and biological properties and can promote the osteogenic differentiation potential of MC3T3-E1.

Key words: electrospinning, melatonin, barrier membrane, osteogenesis differentiation