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001-es BibID:BIBFORM054231
035-os BibID:PMID: 25112419
Első szerző:Sándor Balázs
Cím:Structural and Morphometric Comparison of the Molar Teeth in Pre-eruptive Developmental Stage of PACAP-Deficient and Wild-Type Mice / B. Sandor, K. Fintor, Sz. Felszeghy, T. Juhasz, D. Reglodi, L. Mark, P. Kiss, A. Jungling, B. D. Fulop, A. D. Nagy, H. Hashimoto, R. Zakany, A. Nagy, A. Tamas
Dátum:2014
ISSN:0895-8696
Megjegyzések:Pituitary adenylate cyclase activating polypeptide (PACAP) is a pleiotropic neuropeptide with widespread distribution. It plays pivotal role in neuronal development. PACAP-immunoreactive fibers have been found in the tooth pulp, and recently, it has been shown that PACAP may also play a role in the regeneration of the periodontium after luxation injuries. However, there is no data about the effect of endogenous PACAP on tooth development. Ectodermal organogenesis including tooth development is regulated by different members of bone morphogenetic protein (BMP), fibroblast growth factor (FGF), hedgehog (HH), and Wnt families. There is also a growing evidence to support the hypothesis that PACAP interacts with sonic hedgehog (SHH) receptor (PTCH1) and its downstream target (Gli1) suggesting its role in tooth development. Therefore, our aim was to study molar tooth development in mice lacking endogenous PACAP. In this study morphometric, immunohistochemical and structural comparison of molar teeth in pre-eruptive developmental stage was performed on histological sections of 7-day-old wild-type and PACAP-deficient mice. Further structural analysis was carried out with Raman microscope. The morphometric comparison of the 7-day-old samples revealed that the dentin was significantly thinner in the molars of PACAP-deficient mice compared to wild-type animals. Raman spectra of the enamel in wild-type mice demonstrated higher diversity in secondary structure of enamel proteins. In the dentin of PACAP-deficient mice higher intracrystalline disordering in the hydroxyapatite molecular structure was found. We also obtained altered SHH, PTCH1 and Gli1 expression level in secretory ameloblasts of PACAP-deficient mice compared to wild-type littermates suggesting that PACAP might play an important role in molar tooth development and matrix mineralization involving influence on SHH signaling cascade.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
Megjelenés:Journal of Molecular Neuroscience. - 54 : 3 (2014), p. 331-334. -
További szerzők:Fintor K. Felszeghy Szabolcs Béla (1972-) (fogorvos, anatómus, kötőszövetbiológus) Juhász Tamás (1976-) (biológus, orvosbiológus) Reglődi Dóra (Idegtudományok) Mark L. Kiss Péter (Pécs) Jungling Adél Fülöp Balázs Dániel (Orvosi alapkutatások) Nagy András Dávid Hashimoto, Hitoshi Zákány Róza (1963-) (anatómus-, kötőszövetbiológus) Nagy Ákos Tamás Andrea (Idegtudomány) (Pécs)
Pályázati támogatás:PTE-MTA Lendület
Egyéb
K104984
OTKA
PD109644
OTKA
4.2.2.A-11/1/KONV-2012-0024
TÁMOP
4.2.4A/2-11-1-2012-0001
TÁMOP
Bolyai Ösztöndíj
Egyéb
Debreceni Egyetem RH/885/2013
Egyéb
Grants-in-Aid for Scientific Research KAKENHI, 26293020, 26670122
Egyéb
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