Abstract
The aim of this study was to determine whether histone deacetylase inhibitors (HDACi), including entinostat (MS-275), valproic acid (VPA), trichostatin A (TSA), and sodium butyrate (NaB), promoted the odontogenic differentiation of the odontoblast-like cell line, MDPC-23 in the absence of an osteoblast mineralization medium. The cells were cultured in basal medium (Dulbecco’s modified Eagle medium) with and without (controls) the inhibitors. The cell viability and migration were assessed using the cell proliferation reagent WST-1 and a scratch wound healing assay, respectively. The mRNA expression levels of bone morphogenetic protein (Bmp)-2 and -4, collagen 1 alpha 1 (Col1α1), osteocalcin (Oc), dentin matrix protein 1 (Dmp1), dentin sialophosphoprotein (Dspp), runt-related transcription factor 2 (Runx2), Krueppel-like factor 5 (Klf5), and Msh homeobox 1 (Msx1) were evaluated by quantitative real-time polymerase chain reaction (qRT-PCR). Alizarin red and alkaline phosphatase assays were performed to determine the extent of mineralization in the culture systems. No significant differences in cell numbers were observed between the controls and the MS-275-, VPA-, and NaB-treated cells; however, a significant difference was observed with TSA (concentration, 1000 nM). The scratch wound healing assay showed no effect of cell migration in the MS-275 (1.0 µM)-treated cells when compared with the controls at 24 h. Furthermore, MS-275, VPA, and NaB increased the mRNA expression levels of Bmp-2 and -4, Oc, and Runx2 followed by the mineralization of the cells. Only MS-275 significantly increased the expression levels of Dmp1, Dspp, Klf5, and Msx1 in the cells. These findings indicated that MS-275 may be considered as a reliable candidate for the odontogenic differentiation of dental pulp cells.
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References
- 1.
Morotomi T, Washio A, Kitamura C. Current and future options for dental pulp therapy. Jpn Dent Sci Rev. 2019;55:5–11.
- 2.
Kunert M, Lukomska-Szymanska M. Bio-inductive materials in direct and indirect pulp capping: a review article. Materials. 2020;13:1204.
- 3.
Skallevold HE, Rokaya D, Khurshid Z, et al. BioACTIVE glass applications in dentistry. Int J Mol Sci. 2019;20:5960.
- 4.
Kim SG, Zhou J, Solomon C, et al. Effects of growth factors on dental stem/progenitor cells. Dent Clin North Am. 2012;56:563–75.
- 5.
Goldberg M, Six N, Decup F, et al. Application of bioactive molecules in pulp-capping situations. Adv Dent Res. 2001;15:91–5.
- 6.
Laurent P, Camps J, De Méo M, et al. Induction of specific cell responses to a Ca3SiO5-based posterior restorative material. Dent Mater. 2008;24:1486–94.
- 7.
Nakamura Y, Hammarström L, Lundberg E, et al. Enamel matrix derivative promotes reparative processes in the dental pulp. Adv Dent Res. 2001;15:105–7.
- 8.
Nakamura S, Yamada Y, Katagiri W, et al. Stem cell proliferation pathways comparison between human exfoliated deciduous teeth and dental pulp stem cells by gene expression profile from promising dental pulp. J Endod. 2009;35:1536–42.
- 9.
Yang XJ, Seto EH. HATs and HDACs: from structure, function and regulation to novel strategies for therapy and prevention. Oncogene. 2007;26:5310.
- 10.
Schroeder TM, Westendorf JJ. Histone deacetylase inhibitors promote osteoblast maturation. J Bone Miner Res. 2005;20:2254–63.
- 11.
Riggs AD, Martienssen RA, Russo VEA. Introduction. In: Russo VEA, Martienssen RA, Riggs AD, (eds). Epigenetic mechanisms of gene regulation. New York: Cold Spring Harbor Laboratory Press. 1996. pp. 1–4.
- 12.
Miller JL, Grant PA. The role of DNA methylation and histone modifications in transcriptional regulation in humans. Subcell Biochem. 2013;61:289–317.
- 13.
Seto E, Yoshida M. Erasers of histone acetylation: the histone deacetylase enzymes. Cold Spring Harb Perspect Biol. 2014;6:a018713.
- 14.
Arnsdorf EJ, Tummala P, Castillo AB, et al. The epigenetic mechanism of mechanically induced osteogenic differentiation. J Biomech. 2010;43:2881–6.
- 15.
La Noce M, Mele L, Laino L, et al. Cytoplasmic interactions between the glucocorticoid receptor and HDAC2 regulate osteocalcin expression in VPA-treated MSCs. Cells. 2019;8:217.
- 16.
Kearney M, Cooper PR, Smith AJ, et al. Epigenetic approaches to the treatment of dental pulp inflammation and repair: opportunities and obstacles. Front Genet. 2018;9:311.
- 17.
Ching HS, Luddin N, Rahman IA, et al. Expression of odontogenic and osteogenic markers in DPSCs and. SHED: a review. Curr Stem Cell Res Ther. 2017;12:71–9.
- 18.
Tang J, Saito T. Nephronectin stimulates the differentiation of MDPC-23 into an odontoblast-like phenotype. J Endod. 2017;43:263–71.
- 19.
Livak KJ, Schmittgen TD. Analysis of relative gene expression data using real-time quantitative PCR and the 2 (-Delta Delta C (T)) Method. Methods. 2001;25:402–8.
- 20.
George A, Sabsay B, Simonian PA, et al. Characterization of a novel dentin matrix acidic phosphoprotein. Implications for induction of biomineralization. J Biol Chem. 1993;268:12624–30.
- 21.
Suzuki S, Haruyama N, Nishimura F, et al. Dentin sialophosphoprotein and dentin matrix protein-1: two highly phosphorylated proteins in mineralized tissues. Arch Oral Biol. 2012;57:1165–75.
- 22.
Lee E-C, Kim Y-M, Lim H-M, et al. The histone deacetylase inhibitor (MS-275) promotes differentiation of human dental pulp stem cells into odontoblast-like cells independent of MAPK signaling. Int J Mol Sci. 2020;21:5771.
- 23.
Komori T. Regulation of bone development and extracellular matrix protein genes by RUNX2. Cell Tissue Res. 2010;339:189.
- 24.
Kero D, Vukojevic K, Stazic P, et al. Regulation of proliferation in developing human tooth germs by MSX homeodomain proteins and cyclin-dependent kinase inhibitor p19INK4d. Organogenesis. 2017;13:141–55.
- 25.
Jia S, Zhou J, Gao Y, et al. Roles of Bmp4 during tooth morphogenesis and sequential tooth formation. Development. 2013;140:423–32.
- 26.
Han N, Chen Z, Zhang Q. Expression of KLF5 in odontoblastic differentiation of dental pulp cells during in vitro odontoblastic induction and in vivo dental repair. Int Endod J. 2017;50:676–84.
- 27.
Chen Z, Zhang Q, Wang H, et al. Klf5 mediates odontoblastic differentiation through regulating dentin-specific extracellular matrix gene expression during mouse tooth development. Sci Rep. 2017;7:1–7.
- 28.
Kim HJ, Bae SC. Histone deacetylase inhibitors: molecular mechanisms of action and clinical trials as anti-cancer drugs. Am J Transl Res. 2011;3:166.
- 29.
Kim HN, Lee JH, Bae SC, et al. Histone deacetylase inhibitor MS-275 stimulates bone formation in part by enhancing Dhx36-mediated TNAP transcription. J Bone Miner Res. 2011;26:2161–73.
- 30.
Kim HN, Lee JH, Jin WJ, et al. MS-275, a benzamide histone deacetylase inhibitor, prevents osteoclastogenesis by down-regulating c-Fos expression and suppresses bone loss in mice. Eur J Pharmacol. 2012;691:69–76.
- 31.
Duncan HF, Smith AJ, Fleming GJ, et al. Histone deacetylase inhibitors induced differentiation and accelerated mineralization of pulp-derived cells. J Endod. 2012;38:339–45.
- 32.
Duncan HF, Smith AJ, Fleming GJP, et al. The histone-deacetylase-inhibitor suberoylaniline hydroxamic acid promotes dental pulp repair mechanisms through modulation of matrix metalloproteinase-13 activity. J Cell Physiol. 2016;231:798–816.
- 33.
Duncan HF, Smith AJ, Fleming GJ, et al. Epigenetic modulation of dental pulp stem cells: implications for regenerative endodontics. Int Endod J. 2016;49:431–46.
- 34.
Kwon A, Park HJ, Baek K, et al. Suberoylanilide hydroxamic acid enhances odontoblast differentiation. J Dent Res. 2012;91:506–12.
- 35.
Pettersson LF, Kingham PJ, Wiberg M, et al. In vitro osteogenic differentiation of human mesenchymal stem cells from jawbone compared with dental tissue. Tissue Eng Regen Med. 2017;14:763–74.
- 36.
Liu J, Jin T, Ritchie HH, et al. In vitro differentiation and mineralization of human dental pulp cells induced by dentin extract. Vitro Cell Dev Biol. 2005;41:232–8.
- 37.
Zang D, Li Q, Rao L, et al. Effect of 5-Aza-2′-deoxycytidine on odontogenic differentiation of human dental pulp cells. J Endod. 2015;41:640–5.
- 38.
Canani RB, Di Costanzo M, Leone L. The epigenetic effects of butyrate: potential therapeutic implications for clinical practice. Clin Epigenetics. 2012;4:1–7.
- 39.
Schroeder TM, Nair AK, Staggs R, et al. Gene profile analysis of osteoblast genes differentially regulated by histone deacetylase inhibitors. BMC Genom. 2007;8:362.
- 40.
Hadjiargyrou M. Mustn1: a developmentally regulated pan-musculoskeletal cell marker and regulatory gene. Int J Mol Sci. 2018;19:206.
- 41.
Lauffer BE, Mintzer R, Fong R, et al. Histone deacetylase (HDAC) inhibitor kinetic rate constants correlate with cellular histone acetylation but not transcription and cell viability. J Biol Chem. 2013;288:26926–43.
- 42.
Hu E, Dul E, Sung CM, et al. Identification of novel isoform-selective inhibitors within class I histone deacetylases. J Pharmacol Exp Ther. 2003;307:720–8.
- 43.
Khan N, Jeffers M, Kumar S, et al. Determination of the class and isoform selectivity of small-molecule histone deacetylase inhibitors. Biochem J. 2008;409:581–9.
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All authors contributed to the study conception and design. Material preparation, data collection, and analysis were performed by OU, KY, TS, and YA. The first draft of the manuscript was written by SS and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.
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Sultana, S., Uehara, O., Yoshida, K. et al. The histone deacetylase inhibitor, entinostat (MS-275), induces the odontogenic differentiation of an odontoblast-like cell line in the absence of an osteoblast mineralization medium. Odontology (2021). https://doi.org/10.1007/s10266-020-00588-8
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Keywords
- Histone deacetylase inhibitor
- MS-275
- Dental pulp cells
- Basal medium
- Odontogenic differentiation