ArticleJournal of advanced research2022
bFGF stimulated plasminogen activation factors, but inhibited alkaline phosphatase and SPARC in stem cells from apical Papilla: Involvement of MEK/ERK, TAK1 and p38 signaling.
Article in Journal of advanced research, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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9 citing papers in PubMed, 16 citations in OpenAlex.
- Roles of basic fibroblast growth factor, stem cells from dental pulp and apical papilla in the repair and regeneration of dental pulp and other tissues/organs.Journal of dental sciences · 2025Review
- Bone morphogenetic protein-4 induced matrix turnover and osteogenic differentiation-related molecules of stem cells from apical papilla and its associated ALK/Smad signaling.Journal of dental sciences · 2025Article
- The Immunophenotype and the Odontogenic Commitment of Dental Pulp Stem Cells Co-Cultured with Macrophages Under Inflammatory Conditions Is Modulated by Complex Magnetic Fields.International journal of molecular sciences · 2024Article
- Inducing cyclooxygenase-2 expression, prostaglandin EJournal of dental sciences · 2024Article
- Cloning, characterization, and spatio-temporal expression patterns of HdhSPARC and its responses to multiple stressors.Scientific reports · 2024Article
- Review
- Spatiotemporal cellular dynamics and molecular regulation of tooth root ontogeny.International journal of oral science · 2023Review
- Dental characteristics of patients with four different types of skeletal dysplasias.Clinical oral investigations · 2023Article
- Stem Cells from the Apical Papilla (SCAPs): Past, Present, Prospects, and Challenges.Biomedicines · 2023Review
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9 authors at 6 institutions in 1 country.
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Abstract
introductionBasic fibroblast growth factor (bFGF) plays a critical role in odontoblast differentiation and dentin matrix deposition, thereby aiding pulpo-dentin repair and regeneration.
objectivesThe purpose of this study was to clarify the effects of bFGF on plasminogen activation factors, TIMP-1), ALP; and SPARC (osteonectin) expression/production of stem cells from apical papilla (SCAP) in vitro; and the involvement of MEK/ERK, p38, Akt, and TAK1 signaling.
methodsSCAP were exposed to bFGF with/without pretreatment and co-incubation with various signal transduction inhibitors (U0126, SB203580, LY294002, and 5Z-7-oxozeaenol). The expression of FGF receptors (FGFRs), PAI-1, uPA, p-ERK, p-TAK1, and p-p38 was analyzed via immunofluorescent staining. The gene expression and protein secretion of SCAP were determined via real-time PCR and ELISA. ALP activity was evaluated via ALP staining.
resultsSCAP expressed FGFR1, 2, 3, and 4. bFGF stimulated the PAI-1, uPA, uPAR, and TIMP-1 mRNA expression (p < 0.05). bFGF induced PAI-1, uPA, and soluble uPAR production (p < 0.05) but suppressed the ALP activity and SPARC production (p < 0.05) of SCAP. bFGF stimulated ERK, TAK1, and p38 phosphorylation of SCAP. U0126 (a MEK/ERK inhibitor) and 5Z-7-oxozeaenol (a TAK1 inhibitor) attenuated the bFGF-induced PAI-1, uPA, uPAR, and TIMP-1 expression and production of SCAP, but SB203580 (a p38 inhibitor) did not. LY294002, SB203580, and 5Z-7oxozeaenol could not reverse the inhibition of ALP activity caused by bFGF. Interestingly, U0126 and 5Z-7-oxozeaenol prevented the bFGF-induced decline of SPARC production (p < 0.05).
conclusionbFGF may regulate fibrinolysis and matrix turnover via modulation of PAI-1, uPA, uPAR, and TIMP-1, but bFGF inhibited the differentiation (ALP, SPARC) of SCAP. These events are mainly regulated by MEK/ERK, p38, and TAK1. Combined use of bFGF and SCAP may facilitate pulpal/root repair and regeneration via regulation of the plasminogen activation system, migration, matrix turnover, and differentiation of SCAP.
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