'ORAL BIOSIGNATURES' - A MINUSCULE NARRATIVE REVIEW.

ABSTRACT

Background: Oral squamous cell carcinoma (OSCC) represents more than 90% of oral malignancies and remains a major global public health concern due to high mortality rates and late-stage clinical presentations. Traditional diagnostic approaches, such as visual screening and conventional scalpel biopsy, often fail to catch early molecular alterations or map structural tumor heterogeneity.

Objective: This paper evaluates the clinical significance of oral cancer biomarkers across genomic, transcriptomic, proteomic, and metabolomic classes, emphasizing their utility in screening, early detection, and risk stratification.

Methods: Emerging liquid biopsy platforms, particularly salivaomics, have identified specific molecules like Interleukin-8 (IL-8), matrix metalloproteinases, and exosomal microRNAs (such as miR-1246 and miR-423-5p) that track with tumor development.

Results: Recent multi-center datasets demonstrate that combining these individual molecular features into multi-marker panels dramatically improves screening sensitivity and specificity, yielding Area Under the Curve (AUC) values greater than 0.95.

Conclusion: Validated oral cancer biomarkers offer an impactful, non-invasive avenue to complement the classic TNM staging system, optimize therapeutic planning, and ultimately improve patient survival outcomes.

KEYWORDS: Oral Squamous Cell Carcinoma; Salivaomics; Liquid Biopsy; Tumor Biomarkers; Early Detection.