Molecular characterization of young and mature odontoblasts

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Molecular characterization of young and mature odontoblasts. / Simon, Stephane; Smith, Anthony; Lumley, Philip; Berdal, A; Smith, G; Finney, S; Cooper, Paul.

In: Bone, Vol. 45, No. 4, 01.10.2009, p. 693-703.

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@article{40193c4319004c56bda2dadcfcf82beb,
title = "Molecular characterization of young and mature odontoblasts",
abstract = "The odontoblast is the secretory cell responsible for primary, secondary and tertiary reactionary dentinogenesis. We provide evidence that the changes in secretory activity of odontoblasts reflect differential transcriptional control and that common regulatory processes may exist between dentine and bone. Introduction: Based on the hypothesis that differential dentine secretion (primary and secondary dentinogenesis) is associated with changes in the transcriptional control within the cell, we have investigated the transcriptome of odontoblasts at young and mature stages and subsequently used this information to identify key regulatory intracellular pathways involved in this process. Materials and methods: We used microarray analysis to compare the transcriptome of early stage (primary dentinogenesis) and late stage (secondary dentinogenesis) odontoblasts from 30 month old bovine teeth. Secondarily, we used post-array sqRT-PCR to confirm the differential expression of 23 genes in both populations of odontoblasts. Finally, immunohistochemistry was performed on bovine and murine tissues with antibodies to DMP1 and anti-phospho p38 proteins. Results: DMP-1 and osteocalcin gene expression were up-regulated in the mature odontoblasts, whereas collagen 1, DSPP, TGF-beta 1 and TGF-beta 1R gene expression were down-regulated. Microarray analysis highlighted 574 differentially regulated genes (fold change>2 - p",
keywords = "Osteoblast, Osteocyte, Odontoblast, Dentinogenesis, Genes regulation, Transcriptome",
author = "Stephane Simon and Anthony Smith and Philip Lumley and A Berdal and G Smith and S Finney and Paul Cooper",
year = "2009",
month = oct,
day = "1",
doi = "10.1016/j.bone.2009.06.018",
language = "English",
volume = "45",
pages = "693--703",
journal = "Bone",
issn = "8756-3282",
publisher = "Elsevier",
number = "4",

}

RIS

TY - JOUR

T1 - Molecular characterization of young and mature odontoblasts

AU - Simon, Stephane

AU - Smith, Anthony

AU - Lumley, Philip

AU - Berdal, A

AU - Smith, G

AU - Finney, S

AU - Cooper, Paul

PY - 2009/10/1

Y1 - 2009/10/1

N2 - The odontoblast is the secretory cell responsible for primary, secondary and tertiary reactionary dentinogenesis. We provide evidence that the changes in secretory activity of odontoblasts reflect differential transcriptional control and that common regulatory processes may exist between dentine and bone. Introduction: Based on the hypothesis that differential dentine secretion (primary and secondary dentinogenesis) is associated with changes in the transcriptional control within the cell, we have investigated the transcriptome of odontoblasts at young and mature stages and subsequently used this information to identify key regulatory intracellular pathways involved in this process. Materials and methods: We used microarray analysis to compare the transcriptome of early stage (primary dentinogenesis) and late stage (secondary dentinogenesis) odontoblasts from 30 month old bovine teeth. Secondarily, we used post-array sqRT-PCR to confirm the differential expression of 23 genes in both populations of odontoblasts. Finally, immunohistochemistry was performed on bovine and murine tissues with antibodies to DMP1 and anti-phospho p38 proteins. Results: DMP-1 and osteocalcin gene expression were up-regulated in the mature odontoblasts, whereas collagen 1, DSPP, TGF-beta 1 and TGF-beta 1R gene expression were down-regulated. Microarray analysis highlighted 574 differentially regulated genes (fold change>2 - p

AB - The odontoblast is the secretory cell responsible for primary, secondary and tertiary reactionary dentinogenesis. We provide evidence that the changes in secretory activity of odontoblasts reflect differential transcriptional control and that common regulatory processes may exist between dentine and bone. Introduction: Based on the hypothesis that differential dentine secretion (primary and secondary dentinogenesis) is associated with changes in the transcriptional control within the cell, we have investigated the transcriptome of odontoblasts at young and mature stages and subsequently used this information to identify key regulatory intracellular pathways involved in this process. Materials and methods: We used microarray analysis to compare the transcriptome of early stage (primary dentinogenesis) and late stage (secondary dentinogenesis) odontoblasts from 30 month old bovine teeth. Secondarily, we used post-array sqRT-PCR to confirm the differential expression of 23 genes in both populations of odontoblasts. Finally, immunohistochemistry was performed on bovine and murine tissues with antibodies to DMP1 and anti-phospho p38 proteins. Results: DMP-1 and osteocalcin gene expression were up-regulated in the mature odontoblasts, whereas collagen 1, DSPP, TGF-beta 1 and TGF-beta 1R gene expression were down-regulated. Microarray analysis highlighted 574 differentially regulated genes (fold change>2 - p

KW - Osteoblast

KW - Osteocyte

KW - Odontoblast

KW - Dentinogenesis

KW - Genes regulation

KW - Transcriptome

U2 - 10.1016/j.bone.2009.06.018

DO - 10.1016/j.bone.2009.06.018

M3 - Article

C2 - 19555781

VL - 45

SP - 693

EP - 703

JO - Bone

JF - Bone

SN - 8756-3282

IS - 4

ER -