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Immunohistochemical analysis of epithelium adjacent to lip cancer: A meta-analysis
Pablo Varela-Centelles1, Miguel Ángel Gonzalez-Moles2,3, Javier Seoane-Romero4
1CS Praza do Ferrol, EOXI Lugo, Cervo, e Monforte, Galician Health Service, Lugo, Spain.
Objectives:
To identify the immunohistochemical pattern of non-tumoral epithelium adjacent to lip cancer (ANTE) to unveil molecular alterations and potential biomarkers in lip cancer patients.
Materials And Methods:
A systematic search at MEDLINE, EMBASE and proceedings Web of Science, OpenGrey and WorldCat. The PICOS outline (Population: lip cancer patients; Intervention: immunostaining with biomarkers in surgical specimens; Comparisons: ANTE versus LC; Outcomes: primary-to identify the immunohistochemical pattern of peritumoral epithelium and secondary-to assess the immunoreactivity of LC epithelium; and Study design: cross-sectional, case-control and cohort studies).
Results:
A total of 339 records were identified. Seven studies reporting on ANTE and LCs were included in the qualitative synthesis, and 4 of them (p53 immunostaining) were selected for meta-analysis. In the ANTE group, the pooled prevalence of p53 was 0.74 (95% CI: 0.66 - 0.82), while in the lip squamous cell carcinoma group this prevalence was 0.83 (95% CI: 0.75 - 0.89).
Conclusions:
Similar immunoexpression was found in lip epithelium adjacent to lip carcinoma, even in epithelia with normal appearance or mild histological alterations. The role of biomarkers in the follow-up of actinic cheilitis patients deserves additional clinical assessment.
