ArticleInternational journal of molecular sciences2026
PTEN Inhibition Suppresses Differentiation in Periodontal Ligament Stem Cells.
Article in International journal of molecular sciences, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Phosphatase and Tensin Homolog (PTEN) functions in numerous biological processes, encompassing cell proliferation, growth, self-renewal, and differentiation. This study examined the modulatory function of the PTEN inhibitor in periodontal ligament stem cells (PDLSCs). PDLSCs were treated with VO-OHpic at a concentration range from 0.625 to 5 μM. MTT assay and Coomassie Blue staining were conducted to determine cell viability and colony-forming unit ability, respectively. The scratch assay was employed to examine cell migration. Mineral deposition and intracellular lipid accumulation were assessed. The qRT-PCR and immunofluorescence were used to evaluate mRNA and protein expression, respectively. RNA sequencing was employed for transcriptomic analysis. VO-OHpic exposure showed no cytotoxic effects in PDLSCs; however, at 5 μM, it markedly decreased colony-forming efficiency and impaired cell migration. Under osteogenic induction conditions, 5 μM VO-OHpic markedly attenuated mineralisation and downregulated the osteogenic marker gene expression partly through ERK signalling. Indeed, VO-OHpic impaired intracellular lipid accumulation during adipogenic differentiation, as evidenced by reduced expression of adipogenic marker genes. RNA sequencing analysis revealed that VO-OHpic treatment upregulated genes in the TGF-β and calcium signalling pathways, suggesting a regulatory role in PDLSC differentiation. In conclusion, PTEN regulates PDLSC colony formation, migration, and differentiation, suggesting a pivotal role for PTEN in maintaining periodontal tissue homeostasis.
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