| Primary information |
|---|
| SALID | SAL_15760 |
| Biomarker name | Acylamino-acid-releasing enzyme (AARE) (EC 3.4.19.1) (Acyl-peptide hydrolase) (APH) (Acylaminoacyl-peptidase) (Oxidized protein hydrolase) (OPH) |
| Biomarker Type | NA |
| Sampling Method | 33-62 |
| Collection Method | Briefly, the subjects were asked to rinse their mouth with tap water, following which they expectorated whole saliva into sterile 50-mL tubes for 5 min. |
| Analysis Method | L-plastin levels in gingival crevicular fluid, saliva and serum were measured using ELISA. Statistical analysis was performed using nonparametric methods. |
| Collection Site | Whole Saliva |
| Disease Category | Dental Disorder |
| Disease/Condition | Chronic periodontitis |
| Disease Subtype | NA |
| Fold Change/ Concentration | 1.55 |
| Up/Downregulated | Upregulated |
| Exosomal | NA |
| Organism | Homo sapiens |
| PMID | 25040533 |
| Year of Publication | 2015 |
| Biomarker ID | P13798 |
| Biomarker Category | Protein |
| Sequence | MERQVLLSEPEEAAALYRGLSRQPALSAACLGPEVTTQYGGQYRTVHTEWTQRDLERMENIRFCRQYLVFHDGDSVVFAGPAGNSVETRGELLSRESPSGTMKAVLRKAGGTGPGEEKQFLEVWEKNRKLKSFNLSALEKHGPVYEDDCFGCLSWSHSETHLLYVAEKKRPKAESFFQTKALDVSASDDEIARLKKPDQAIKGDQFVFYEDWGENMVSKSIPVLCVLDVESGNISVLEGVPENVSPGQAFWAPGDAGVVFVGWWHEPFRLGIRFCTNRRSALYYVDLIGGKCELLSDDSLAVSSPRLSPDQCRIVYLQYPSLIPHHQCSQLCLYDWYTKVTSVVVDVVPRQLGENFSGIYCSLLPLGCWSADSQRVVFDSAQRSRQDLFAVDTQVGTVTSLTAGGSGGSWKLLTIDQDLMVAQFSTPSLPPTLKVGFLPSAGKEQSVLWVSLEEAEPIPDIHWGIRVLQPPPEQENVQYAGLDFEAILLQPGSPPDKTQVPMVVMPHGGPHSSFVTAWMLFPAMLCKMGFAVLLVNYRGSTGFGQDSILSLPGNVGHQDVKDVQFAVEQVLQEEHFDASHVALMGGSHGGFISCHLIGQYPETYRACVARNPVINIASMLGSTDIPDWCVVEAGFPFSSDCLPDLSVWAEMLDKSPIRYIPQVKTPLLLMLGQEDRRVPFKQGMEYYRALKTRNVPVRLLLYPKSTHALSEVEVESDSFMNAVLWLRTHLGS |
| Title of study | The actin-bundling protein L-plastin: a novel local inflammatory marker associated with periodontitis |
| Abstract of study | BACKGROUND AND OBJECTIVE: L-plastin, an actin-bundling protein, is exclusively expressed in leukocytes and plays a crucial role in immune-mediated events. Periodontitis is a common infectious inflammatory disease that destroys the tooth-supporting tissues. Recent findings using proteomic technologies have demonstrated that L-plastin is one of the few molecules consistently present in the inflammatory exudate of the gingiva in periodontal disease, but not in health. Therefore, this study aimed to investigate in detail the local and systemic role of this molecule in different forms of periodontitis.MATERIAL AND METHODS: A total of 61 subjects who met the inclusion/exclusion criteria were recruited, including 21 with chronic periodontitis, 20 generalized aggressive periodontitis and 20 nonperiodontitis control subjects. Gingival tissue biopsies, gingival crevicular fluid, as well as serum and saliva, were obtained. Immunohistochemistry and quantitative real-time PCR were employed to evaluate the localization and mRNA expression, respectively, of L-plastin. L-plastin levels in gingival crevicular fluid, saliva and serum were measured using ELISA. Statistical analysis was performed using nonparametric methods.RESULTS: Subjects with chronic periodontitis and generalized aggressive periodontitis exhibited significantly higher tissue L-plastin gene expression and gingival crevicular fluid levels than did subjects in the control group but there was no significant difference between the two forms of periodontitis. Within gingival tissue, L-plastin was confined to the inflammatory infiltrate. There was no statistically significant difference between serum and salivary L-plastin levels among the three study groups.CONCLUSION: The elevated gingival tissue expression and gingival crevicular fluid levels of L-plastin in both forms of periodontitis may denote the localized involvement of this novel molecule in the pathogenesis of the disease. |