Expression of osteocalcin in rat tooth

Bglap; BGP; OCN; bone gla protein; bone gamma-carboxyglutamate protein 2 (Bglap1, Bglap2)

Species: rat
Location in rat genome: chromosome 2, 180432418 - 180433396 (UCSC, assembly June 2003)
Tooth: molar and incisor
Method: immunochemistry, antibody: antiserum and antibodies

Late bell
(differentiation) stage
Expression: preodontoblasts
No expression: outer enamel epithelium, stratum intermedia, stellate reticulum, preameloblasts, basement membrane, dental papilla, dental sac

First onset was in odontoblasts along a thin layer of predentin..

Secretory stage
Expression: odontoblasts, predentin, dentin
No expression: outer enamel epithelium, stratum intermedia, stellate reticulum, ameloblasts, enamel, dental papilla, dental sac

Root development
Expression: odontoblasts, predentin, dentin, cementum, cementoblasts
No expression: dental papilla, periodontal ligament

Acellular cementum and cementoblasts were negative..

Osteocalcin is specific marker for differentiated odontoblasts.

Source references:
Bronckers,A.L., D'Souza,R.N., Butler,W.T., Lyaruu,D.M., van Dijk,S., Gay,S., and, Wöltgens,J.H. (1993) Cell & Tissue Research 272(2):237-247
Bronckers,A.L., Gay,S., Finkelman,R.D., and, Butler,W.T. (1987) Bone & Mineral 2(5):361-373
Bronckers,A.L., Farach-Carson,M.C., Van Waveren,E., and, Butler,W.T. (1994) Journal of Bone & Mineral Research 9(6):833-841

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Data last edited 05.04.2004 by M.K., page last created 10.12.2004 by P.N.