Exosomes derived from lipopolysaccharide-preconditioned human dental pulp stem cells regulate Schwann cell migration and differentiation
| Autor: | Jiabei Li, Shangfeng Liu, Yunyu Fu, Yanqin Ju, Shouliang Zhao |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Lipopolysaccharides
Lipopolysaccharide 0206 medical engineering 02 engineering and technology Exosomes Biochemistry 03 medical and health sciences chemistry.chemical_compound stomatognathic system Rheumatology Cell Movement Dental pulp stem cells Humans Orthopedics and Sports Medicine Molecular Biology Dental Pulp Cell Proliferation 030304 developmental biology 0303 health sciences integumentary system Chemistry Stem Cells fungi Schwann cell migration Cell Differentiation Cell Biology 020601 biomedical engineering Microvesicles Cell biology Odontogenic Odontoblast nervous system tissues Intracellular Dentin sialoprotein |
| Zdroj: | Connective Tissue Research. 62:277-286 |
| ISSN: | 1607-8438 0300-8207 |
| DOI: | 10.1080/03008207.2019.1694010 |
| Popis: | Purpose: Schwann cells (SCs) are the main source of odontoblasts. They can migrate to the sites of injury and differentiate into odontoblasts during tooth development and regeneration. However, the molecular mechanisms by which SCs repair dental damage remain to be fully elucidated. In addition, exosomes play a crucial role in regulating cell-cell interaction. Hence, we aim to explore the biological function of exosomes secreted by human dental pulp stem cells (hDPSCs) and their effect on SCs.Materials and Methods: Exosomes were extracted from the supernatant of hDPSCs (exo) and LPS- preconditioned hDPSCs (LPS-exo), respectively. Following the evaluation of specific surface proteins and exosomes size and morphology, SCs were treated with exo and LPS-exo, and we examined SCs proliferation, migration, and odontogenic differentiation in vitro.Results: Exosomes had the capacity to regulate SCs proliferation and migration. Furthermore, exosomes from both groups stimulated SCs to produce dentin sialoprotein and undergo mineralization; however, LPS-exo had a better ability to modulate SCs migration and odontogenic differentiation compared with exo.Conclusions: Exosomes from hDPSCs, especially from LPS- preconditioned hDPSCs, can promote the proliferation, migration and odontogenic differentiation of SCs. LPS might change the hDPSCs' intercellular signals, which might mediate the odontogenic differentiation of SCs, transmitting in the manner of "exosomes". |
| Databáze: | OpenAIRE |
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