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Immunohistochemical studies with a monoclonal antibody on the distribution of phosphophoryn in predentin and dentin.

Abstract
A monoclonal antibody was raised against phosphophoryn, a unique noncollagenous phosphoprotein in dentin. Mouse myeloma NS-I cells were fused with spleen cells obtained from BALB/c mice immunized with phosphophoryn from fetal calf tooth germs. Mice inoculated with the hybridoma produced ascites fluid containing the antibody and this reacted only with a band of phosphophoryn transblotted from polyacrylamide gel. Immunohistochemical studies with the antibody showed that phosphophoryn was present in odontoblasts, odontoblastic processes and dentin, but not in the matrix of predentin, and that the phosphophoryn content of the dentin layer was high at and around the predentin-dentin junction and gradually decreased toward the enamel layer. The area corresponding to mantle dentin was not stained with the antibody.
AuthorsO Nakamura, E Gohda, M Ozawa, I Senba, H Miyazaki, T Murakami, Y Daikuhara
JournalCalcified tissue international (Calcif Tissue Int) Vol. 37 Issue 5 Pg. 491-500 (Sep 1985) ISSN: 0171-967X [Print] United States
PMID3933788 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
Chemical References
  • Antibodies, Monoclonal
  • Phosphoproteins
  • phosphophoryn
Topics
  • Animals
  • Antibodies, Monoclonal (analysis, biosynthesis)
  • Antibody Specificity
  • Cattle
  • Dentin (analysis)
  • Electrophoresis, Polyacrylamide Gel
  • Enzyme-Linked Immunosorbent Assay
  • Fetus
  • Hybridomas (metabolism)
  • Mice
  • Mice, Inbred BALB C
  • Phosphoproteins (analysis, immunology)
  • Plasmacytoma (analysis)
  • Tooth Germ (analysis)

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