PMID- 22410369 OWN - NLM STAT- MEDLINE DCOM- 20120905 LR - 20220318 IS - 1949-2553 (Electronic) IS - 1949-2553 (Linking) VI - 3 IP - 3 DP - 2012 Mar TI - Expressions of matrix metalloproteinase-9 (MMP-9), dentin sialophosphoprotein (DSPP), and osteopontin (OPN) at histologically negative surgical margins may predict recurrence of oral squamous cell carcinoma. PG - 286-98 AB - Up to 50% of oral squamous cell carcinomas (OSCCs) recur following surgical resections with conventional "histologically-negative" margins. Three members of the SIBLING family of proteins: dentin sialophophoprotein (DSPP); bone sialoprotein (BSP); and osteopontin OPN are upregulated in OSCCs. In this study, we aimed to correlate the expression of DSPP, OPN and BSP as well as three SIBLING-partners, matrix metalloproteinase-2 (MMP-2), matrix metalloproteinase-3 (MMP-3), and matrix metalloproteinase-9 (MMP-9), at histologically-negative margins of OSCCs with tumor recurrence. Immunohistochemical analyses of the SIBLINGs and MMP expressions at histologically-negative margins of OSCC was carried out in a retrospective study of 20 patients, and the results correlated with tumor recurrence. Each protein was dichotomized as "present" (>/=10% staining) or "absent" (more than 10% staining). The Sensitivity, Specificity, Positive Predictive Value(PV+) and Negative Predictive Value (PV-) for recurrence was calculated for each protein, along with their overall diagnostic accuracy, calculated as: (number of true positives + number of true negatives)/ number of patients. OSCC recurred in 9 of 20 patients (45%), a ratio not significantly different from the estimated population recurrence rate of 50% (p = 0.664). Among the SIBLINGs, DSPP and OPN showed the greatest Accuracy with DSPP being more Sensitive (89%) and OPN more Specific (64%). MMP-9 showed the greatest overall Accuracy (80%), slightly less Sensitivity (67%) and more Specificity (100%), than either DSPP or OPN. MMP-9 showed a superior positive PV than either DSPP or OPN. The negative PVs of OPN and MMP-9 were almost identical, and inferior to DSPP. We conclude that DSPP, OPN, or MMP-9 expressions at histologically-negative surgical margins predict OSCC recurrence with MMP-9 being the preferred predictor. These proteins may identify patients who could benefit from more extensive resection, or from adjunct treatments such as radiotherapy. FAU - Ogbureke, Kalu U E AU - Ogbureke KU AD - College of Dental Medicine, Georgia Health Sciences University, Augusta, GA, USA. kogbureke@georgiahealth.edu FAU - Weinberger, Paul M AU - Weinberger PM FAU - Looney, Stephen W AU - Looney SW FAU - Li, Li AU - Li L FAU - Fisher, Larry W AU - Fisher LW LA - eng GR - K23 DE017791/DE/NIDCR NIH HHS/United States GR - ImNIH/Intramural NIH HHS/United States GR - K23DE017791-01A1/DE/NIDCR NIH HHS/United States PT - Evaluation Study PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, N.I.H., Intramural PL - United States TA - Oncotarget JT - Oncotarget JID - 101532965 RN - 0 (Biomarkers, Tumor) RN - 0 (Extracellular Matrix Proteins) RN - 0 (Phosphoproteins) RN - 0 (Sialoglycoproteins) RN - 0 (dentin sialophosphoprotein) RN - 106441-73-0 (Osteopontin) RN - EC 3.4.24.35 (Matrix Metalloproteinase 9) SB - IM MH - Adult MH - Aged MH - Aged, 80 and over MH - Biomarkers, Tumor/metabolism MH - Carcinoma, Squamous Cell/*diagnosis/metabolism/pathology/surgery MH - Disease-Free Survival MH - Extracellular Matrix Proteins/*metabolism MH - False Negative Reactions MH - Female MH - Humans MH - Immunohistochemistry MH - Male MH - Matrix Metalloproteinase 9/*metabolism MH - Middle Aged MH - Models, Biological MH - Mouth Neoplasms/*diagnosis/metabolism/pathology/surgery MH - Neoplasm Recurrence, Local/*diagnosis/metabolism/pathology MH - Osteopontin/*metabolism MH - Phosphoproteins/*metabolism MH - Prognosis MH - Retrospective Studies MH - Sialoglycoproteins/*metabolism PMC - PMC3359885 EDAT- 2012/03/14 06:00 MHDA- 2012/09/06 06:00 PMCR- 2012/03/01 CRDT- 2012/03/14 06:00 PHST- 2012/03/14 06:00 [entrez] PHST- 2012/03/14 06:00 [pubmed] PHST- 2012/09/06 06:00 [medline] PHST- 2012/03/01 00:00 [pmc-release] AID - 373 [pii] AID - 10.18632/oncotarget.373 [doi] PST - ppublish SO - Oncotarget. 2012 Mar;3(3):286-98. doi: 10.18632/oncotarget.373.