Up-regulation of SIBLING proteins and correlation with cognate MMP expression in oral cancer

Kalu U E Ogbureke, Nikolaos G. Nikitakis, Gary Warburton, Robert A. Ord, John J. Sauk, Jennifer L Waller, Larry W. Fisher

Research output: Contribution to journalArticle

42 Citations (Scopus)

Abstract

Various combinations of the SIBLING family of proteins have been found to be up-regulated in many human cancers and have been linked to different stages of tumor progression, including metastasis. Bone sialoprotein (BSP), osteopontin (OPN) and dentin matrix protein 1 (DMP1) specifically bind and activate MMP-2, MMP-3, and MMP-9, respectively. These proteases have also been shown to play important roles in oral squamous cell carcinoma (OSCC) invasion and metastasis. However, with the exception of OPN, there are no reports on the expression of the family of five SIBLING proteins in OSCC. This study examines the expression patterns of the SIBLING family (and MMP partners when known) in OSCC, correlating expression to outcome variables. Archived paraffin sections of 87 cases of primary OSCC were screened by immunohistochemistry for the SIBLINGs and their MMP partners. Three SIBLINGs (BSP, DSPP, and OPN), were expressed in OSCC, while DMP1 and MEPE expression were never observed. Furthermore, BSP and OPN were always expressed with their known MMP partners, MMP-2 and MMP-3, respectively. Poorly differentiated tumors exhibited reduced or no immunoreactivity for BSP and OPN but increased immunoreactivity for DSPP. Seventy eight (90%) cases were positive for BSP and DSPP, while 79 cases (91%) were positive for OPN. Overall, 91% of the cases were positive for at least one SIBLING. There were no correlations between SIBLING expression and tumor size ("T"; of the Union Internationale Contre le Cancer [UICC]-TNM classification for OSCC), and between SIBLING expression and lymph node spread for the T1/T2 tumors. The levels of DSPP expression for floor of mouth and retromolar region tumors were higher than for tongue tumors. Statistically significant correlations were, however, found between the expression levels of BSP and MMP-2 (p < 0.0001), BSP and MMP-3 (p < 0.0001), and OPN and MMP-3 (p < 0.0024). We conclude that BSP, DSPP, and OPN are highly up-regulated in OSCC. While the production of these SIBLINGs is independent of T, they correlate with oral location of tumor, cognate MMP expression, and for DSPP, the degree of tumor differentiation.

Original languageEnglish (US)
Pages (from-to)920-932
Number of pages13
JournalOral Oncology
Volume43
Issue number9
DOIs
StatePublished - Oct 1 2007

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Mouth Neoplasms
Matrix Metalloproteinases
Integrin-Binding Sialoprotein
Osteopontin
Up-Regulation
Squamous Cell Carcinoma
Proteins
Neoplasms
Dentin
Neoplasm Metastasis
Mouth Floor
Neoplasm Staging
Tongue
Paraffin
Peptide Hydrolases
Lymph Nodes
Immunohistochemistry

Keywords

  • BSP
  • DSPP
  • Immunohistochemistry
  • MMP-2
  • MMP-3
  • MMP-9
  • OPN
  • OSCC
  • SIBLING proteins

ASJC Scopus subject areas

  • Oncology

Cite this

Ogbureke, K. U. E., Nikitakis, N. G., Warburton, G., Ord, R. A., Sauk, J. J., Waller, J. L., & Fisher, L. W. (2007). Up-regulation of SIBLING proteins and correlation with cognate MMP expression in oral cancer. Oral Oncology, 43(9), 920-932. https://doi.org/10.1016/j.oraloncology.2006.11.011

Up-regulation of SIBLING proteins and correlation with cognate MMP expression in oral cancer. / Ogbureke, Kalu U E; Nikitakis, Nikolaos G.; Warburton, Gary; Ord, Robert A.; Sauk, John J.; Waller, Jennifer L; Fisher, Larry W.

In: Oral Oncology, Vol. 43, No. 9, 01.10.2007, p. 920-932.

Research output: Contribution to journalArticle

Ogbureke, KUE, Nikitakis, NG, Warburton, G, Ord, RA, Sauk, JJ, Waller, JL & Fisher, LW 2007, 'Up-regulation of SIBLING proteins and correlation with cognate MMP expression in oral cancer', Oral Oncology, vol. 43, no. 9, pp. 920-932. https://doi.org/10.1016/j.oraloncology.2006.11.011
Ogbureke, Kalu U E ; Nikitakis, Nikolaos G. ; Warburton, Gary ; Ord, Robert A. ; Sauk, John J. ; Waller, Jennifer L ; Fisher, Larry W. / Up-regulation of SIBLING proteins and correlation with cognate MMP expression in oral cancer. In: Oral Oncology. 2007 ; Vol. 43, No. 9. pp. 920-932.
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