Evaluation of the Expression and Prognostic Role of Tumor Stem Cell Marker SOX2 in Odontogenic Cysts and Tumors

Completed

• Conditions: Odontogenic Cysts; Odontogenic Tumors

• Registration Number: NCT06833840
• Lead Sponsor: Mansoura University

Brief Summary

The pathogenesis of odontogenic lesions remains unclear; however, a probable explanation may involve the existence of tumor stem cells (TSCs), which are thought to generate both benign and malignant tumors. The preservation of stem cells during early dental development is governed by many transcription factors, including sex-determining region Y (SRY)-box 2 (SOX-2). Numerous studies observed the increased expression of SOX2 in various benign and malignant tumors, as its impact on tumorigenesis varies according to tumor type. The purpose of this study is to assess the immunoexpression of the stem cell marker SOX2 in diverse types of odontogenic cysts and tumors in order to identify its prognostic significance and to show if it correlates to clinicopathologic parameters of those odontogenic lesions.

Detailed Description

Forty-five surgical specimens were included in this study: 15 ameloblastomas (Ab), 15 odontogenic keratocysts (OKC), and 15 dentigerous cysts (DC). An immunohistochemical (IHC) study using the SOX2 Rabbit Polyclonal Antibody was done, and SOX2 expression was evaluated by two methods: computer-assisted digital image analysis to measure staining surface area percentage and a semi-quantitative method for subjectively scoring percentage and intensity of SOX2 staining. Positive specimens were considered when the nucleus had brown staining.

Study Timeline

• Study Start: 2022-04-01
• Primary Completion: 2023-03-30
• Study Completion: 2023-12-30
• Study First Submitted: 2025-01-21
• Status Verified: 2025-02
• Study First Submitted QC: 2025-02-13
• Study First Posted: 2025-02-19
• Last Update Submitted: 2025-02-24
• Last Update Posted: 2025-02-26

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 45

Inclusion Criteria

Not provided

Exclusion Criteria

Not provided

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
SOX2 staining score	6 months	Semi-quantitative method for subjectively scoring the immunohistochemical staining. Positive specimens were considered when the nucleus had brown staining.

Trial Locations

Locations (1)

Faculty of Dentistry, Mansoura University; 🇪🇬 Mansoura, Dakahlia, Egypt