Molecular pathogenesis of proliferative verrucous leucoplakia: a systematic review

Proliferative verrucous leucoplakia (PVL) is a potentially premalignant lesion that undergoes malignant transformation in over 40% of cases. Its clinical homogeneity suggests that a single or a small number of molecular pathogenic pathways may exist. Using the Cochrane protocol for systematic reviews, we have looked at the reported evidence of the molecular aetiology and pathogenesis of PVL and compared it with that of conventional oral epithelial dysplasia (OED). Of the 43 papers studied, 19 met the inclusion criteria including 13 proteins assayed in 344 tissues, and genes investigated were TP53, p14ARF, and p16INK4A.

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