PMID- 18804197 OWN - NLM STAT- MEDLINE DCOM- 20090731 LR - 20190508 IS - 1879-1506 (Electronic) IS - 0003-9969 (Print) IS - 0003-9969 (Linking) VI - 54 IP - 1 DP - 2009 Jan TI - Potential biomarkers of human salivary function: a modified proteomic approach. PG - 91-100 LID - 10.1016/j.archoralbio.2008.08.007 [doi] AB - OBJECTIVE: In previous studies, we defined groups of subjects with opposite salivary function. Group membership was associated with clinically relevant outcomes. High aggregation-adherence (HAA) groups showed lower levels of caries, supragingival plaque, total streptococci, and Tannerella forsythensis than low high aggregation-adherence (LAA) groups. In this study, we used a proteomic approach to search for biomarkers which could be useful as risk indicators for those outcomes. DESIGN: Clarified resting whole saliva from each of 41 HAA and LAA subjects was separated by preparative isoelectric focusing. Fractions showing the most distinctive protein profiles were pooled into four sets (pI 3-3.5, pI 4-4.7, pI 5.7-7.7, pI 10-11.5). Each pool then was compared by SDS-PAGE. Image analysis software was used to quantify matched bands. Partial least squares analysis (PLS) was used to determine which of the 65 bands from all four pools were the best predictors of group membership, caries, total plaque, total streptococci, and T. forsythensis counts. Those bands were identified by mass spectroscopy (MS-MS). RESULTS: Two bands consistently were strong predictors in separate PLS analyses of each outcome variable. In follow-up univariate analyses, those bands showed the strongest significant differences between the HAA and LAA groups. They also showed significant inverse correlations with caries and all the microbiological variables. MSMS identified those bands as statherin, and a truncated cystatin S missing the first eight N-terminal amino acids. CONCLUSIONS: Levels of statherin and truncated cystatin S may be potential risk indicators for the development of caries and other oral diseases. FAU - Rudney, J D AU - Rudney JD AD - Department of Diagnostic and Biological Sciences, School of Dentistry, 17-252 Moos Tower, 515 Delaware St. SE, University of Minnesota, Minneapolis, MN 55455, USA. jrudney@tc.umn.edu FAU - Staikov, R K AU - Staikov RK FAU - Johnson, J D AU - Johnson JD LA - eng GR - R01 DE007233-15/DE/NIDCR NIH HHS/United States GR - 2 R01 DE 07233/DE/NIDCR NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural DEP - 20080918 PL - England TA - Arch Oral Biol JT - Archives of oral biology JID - 0116711 RN - 0 (Biomarkers) RN - 0 (STATH protein, human) RN - 0 (Salivary Cystatins) RN - 0 (Salivary Proteins and Peptides) SB - IM MH - Bacterial Adhesion/physiology MH - Biofilms MH - Biomarkers/analysis MH - Blotting, Western MH - Colony Count, Microbial MH - Dental Caries/*microbiology MH - Electrophoresis, Gel, Two-Dimensional/methods MH - Female MH - Humans MH - Male MH - Proteomics/methods MH - Risk Factors MH - Saliva/*chemistry/microbiology/physiology MH - Salivary Cystatins/*analysis MH - Salivary Proteins and Peptides/*analysis PMC - PMC2633945 MID - NIHMS89364 EDAT- 2008/09/23 09:00 MHDA- 2009/08/01 09:00 PMCR- 2010/01/01 CRDT- 2008/09/23 09:00 PHST- 2007/09/06 00:00 [received] PHST- 2008/08/14 00:00 [revised] PHST- 2008/08/21 00:00 [accepted] PHST- 2008/09/23 09:00 [pubmed] PHST- 2009/08/01 09:00 [medline] PHST- 2008/09/23 09:00 [entrez] PHST- 2010/01/01 00:00 [pmc-release] AID - S0003-9969(08)00233-1 [pii] AID - 10.1016/j.archoralbio.2008.08.007 [doi] PST - ppublish SO - Arch Oral Biol. 2009 Jan;54(1):91-100. doi: 10.1016/j.archoralbio.2008.08.007. Epub 2008 Sep 18.