Journal
MOLECULAR MEDICINE REPORTS
Volume 20, Issue 4, Pages 3123-3130Publisher
SPANDIDOS PUBL LTD
DOI: 10.3892/mmr.2019.10580
Keywords
periodontal ligament stem cells; transforming growth factor-beta; cellular senescence; reactive oxygen species
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Funding
- National Natural Science Foundation of China [81701381]
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Periodontal ligament stem cells (PDLSCs) are vital for the regeneration of periodontal tissue. Transforming growth factor (TGF) beta 1, a potent stimulator of tissue regeneration, is extensive and abundant in the bone matrix. However, the effect of TGF-beta 1 in periodontal differentiation remains to be elucidated. The present study aimed to evaluate the effect of TGF-beta 1 on human PDLSCs. PDLSCs were isolated using CD146 microbeads, and characterized by flow cytometry. The present study demonstrated that treatment with TGF-beta 1 induced PDLSC senescence, characterized by increases in senescence-associated beta-galactosidase activity and elevation of both p16 and p21 expression. Furthermore, TGF-beta 1 treatment demonstrated the capacity to induce the production of reactive oxygen species (ROS). Of note, addition of a ROS scavenger successfully rescued the TGF-beta 1-induced PDLSC senescence. Thus, the present results indicated that TGF-beta 1 may serve a vital role in PDLSC senescence, and thus represent a potential target involved in the fabrication and formation of hard tissue for clinical treatment.
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