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Gingival tissue samples from periodontitis patients demonstrate epithelial–mesenchymal transition phenotype
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Abstract<sec><title>Objective

To determine the expression of key epithelial–mesenchymal transition (EMT) markers in gingival tissue samples collected from patients with periodontitis.

Background

Epithelial–mesenchymal transition is a process responsible for shifting epithelial‐phenotype to mesenchymal‐phenotype leading to loss of epithelial‐barrier function. Thus, EMT could be involved as a pathogenic mechanism in periodontitis as both conditions share common promoters and signalling pathways.

Materials and Methods

Gingival tissue samples were collected from patients with periodontitis (case) and healthy periodontium (control). Periodontal parameters including bleeding on probing, probing pocket depth (PPD), and clinical attachment loss were recorded. Paraffinized tissue samples were processed and immunohistochemically stained to determine the expression of key EMT markers which included E‐cadherin, β‐catenin, Snail1 and vimentin.

Results

The majority of cases (n = 65, 72.2%) were diagnosed with periodontitis stage 3 or 4, grade b or c vs 25 (27.8%) subjects with intact healthy periodontium. Discontinuity of epithelium was detected in up to 80.9% of periodontitis cases associated with reduced number of epithelial layers as compared to controls. Immunohistochemical expression of epithelial markers (E‐cadherin and β‐catenin) was significantly downregulated in periodontitis patients as compared with controls. Periodontitis cases exhibited significant upregulation of Snail1 expression. Furthermore, cytoplasmic vimentin (66.2%) and nuclear β‐catenin (27.7%) were solely expressed in periodontally diseased tissues compared with control. Epithelial markers, E‐cadherin and β‐catenin, were significantly negatively correlated with increasing PPD, while vimentin showed positive correlation with this parameter.

Conclusion

There were marked downregulation of epithelial molecules and upregulation of mesenchymal markers in gingival tissues derived from periodontitis patients, suggesting expression of the EMT phenotype in the pathological epithelial lining of periodontal pockets.

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Publication Date
Sun Apr 03 2011
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لمؤتمر العلمي الرابع لكلية التربية/ جامعة سامراء
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GLP-1, GPCR Levels and their Relationshipwith Some Parameters in Nondiabetic Dyslipidaemia in Iraqi Patients
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Role of Certain Pro-Inflammatory Cytokines in Pathogenicity of Cardiomyopathy in Sample of Iraqi Patients
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Thu Jan 01 2015
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Evaluation of anti Epstien-Barr Virus antibodies in female patients with autoimmune hepatitis type-1
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Fri Jun 03 2016
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EVALUATION OF PATIENTS WITH CARPAL TUNNEL SYNDROME TREATED BY MINIMAL PALMAR INCISION (A PRELIMINARY STUDY)
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Publication Date
Fri Jan 20 2023
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Evaluation of Osteocalcin and Some Biochemical Marker in Diabetes Mellitus Iraqi Women's patients with Osteoporosis
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Publication Date
Wed Jan 01 2014
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Evaluation of anti-Helicobacter pylori IgG level in the serum of patients with Rheumatoid arthritis
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Publication Date
Fri Jan 20 2023
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