Stomatology ›› 2022, Vol. 42 ›› Issue (9): 796-801.doi: 10.13591/j.cnki.kqyx.2022.09.006

• Basic Research • Previous Articles     Next Articles

Effect of recombinant human amelogenin on angiogenesis of human umbilical vein endothelial cell in vitro

ZHUANG Qixiang, XIA Yiru, DONG Jiachen, XIE Yufeng, SHU Rong   

  1. Department of Periodontology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine; College of Stomatology, Shanghai Jiao Tong University; National Center for Stomatology; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology, Shanghai 200011, China
  • Revised:2022-03-09 Online:2022-09-28 Published:2022-09-20

Abstract: Objective To investigate the effects of recombinant human amelogenin(rhAm) on angiogenesis of human umbilical vein endothelial cell(HUVEC) in vitro. Methods HUVEC were cultured in vitro. The effect of different concentrations of rhAm(0.1, 10.0, 50.0, 100.0 μg/mL rhAm) were compared with control group. The proliferation of HUVEC was investigated via MTT assay. The migration of HUVEC was investigated via scratch assay. Expression of angiogenesis-related genes and proteins were measured via real-time PCR and western blotting. The angiogenic structure formation of HUVEC was investigated via tube formation assay. Results The proliferation of HUVEC was stimulated by rhAm at concentration of 0.1 μg/mL and 10.0 μg/mL(P<0.05), while inhibited at concentration of 100.0 μg/mL (P<0.01). At concentration of 10.0 μg/mL, rhAm stimulated HUVEC migration in scratch assay(P<0.01). According to the result of real-time PCR, the mRNA expression of intercellular cell adhesion molecule-1 (ICAM-1)(P< 0.01) and E-selectin (P<0.05) were increased by rhAm at concentration of 10.0 μg/mL; the mRNA expression of vascular endothelial growth factor receptor(VEGFR)-1 and VEGFR-2 had a trend of up-regulation but no statistical difference. According to the result of western blotting, the protein expression of ICAM-1(P<0.01)was increased by rhAm at concentration of 10.0 μg/mL, while the protein expression of VEGFR-1, VEGFR-2 and E-selectin had a trend of up-regulation but no statistical difference. RhAm induced the formation of angiogenic structure in vitro. Conclusion Results of the present in vitro study show the potential influence of rhAm on the angiogenic activity of HUVEC at a lower concentration, which may play an important role in periodontal tissue regeneration.

Key words: recombinant human amelogenin, angiogenesis, endo-thelial cell, periodontal tissue regeneration

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