Novel Molecule Nell-1 Promotes the Angiogenic Differentiation of Dental Pulp Stem Cells

Frontiers in Physiology

Chao Yao¹  Qiang Wang¹  Qi Han²  Hongfan Zhu²  Xiuting Bi²  Jiameng Wu²  Mengyue Li²  Yue Chen²  Yixuan Fang²  Xiaoying Wang² 

[1] Jinan Stomatological Hospital, Jinan, China;Shandong Key Laboratory of Oral Tissue Regeneration, Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University, Jinan, China;

关键词: human dental pulp cells;    nel-like molecule-1;    human umbilical vein endothelial cells;    angiogenesis;    pulp regeneration;   

DOI  :  10.3389/fphys.2021.703593

来源: DOAJ

【 摘 要 】

IntroductionThis work aimed to reveal the crucial role of Nell-1 in the angiogenic differentiation of human dental pulp stem cells (DPSCs) alone or co-cultured with human umbilical vein endothelial cell (HUVECs) in vitro and whether this molecule is involved in the pulp exposure model in vivo.MethodsImmunofluorescence was conducted to ascertain the location of Nell-1 on DPSCs, HUVECs, and normal rat dental tissues. RT-PCR, Western blot, and ELISA were performed to observe the expression levels of angiogenic markers and determine the angiogenic differentiation of Nell-1 on DPSCs alone or co-cultured with HUVECs, as well as in vitro tube formation assay. Blood vessel number for all groups was observed and compared using immunohistochemistry by establishing a rat pulp exposure model.ResultsNell-1 is highly expressed in the nucleus of DPSCs and HUVECs and is co-expressed with angiogenic markers in normal rat pulp tissues. Hence, Nell-1 can promote the angiogenic marker expression in DPSCs alone and co-cultured with other cells and can enhance angiogenesis in vitro as well as in the pulp exposure model.ConclusionNell-1 may play a positive role in the angiogenic differentiation of DPSCs.

【 授权许可】

Unknown