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Do Epidermodysplasia Verruciformis Human Papillomaviruses Contribute to Malignant and Benign Epidermal Proliferations?
Slawomir Majewski, MD;
Stefania Jablonska, MD
Arch Dermatol. 2002;138:649-654.
The aim of this review is to present new data on epidermodysplasia verruciformis
(EV) and EV human papillomaviruses (HPVs), regarded previously as specific
to the disease. Recently introduced highly sensitive molecular methods for
virologic studies allow detection of EV HPVs in non-EV populations. In this
article, we present the most recent findings on EV and EV HPVs, which shed
new light on a possible contribution of EV viruses to malignant and benign
epidermal proliferation. We discuss the significance of EV HPV DNA detection
in premalignant cutaneous lesions and nonmelanoma skin cancers; however, direct
evidence for the causative role of EV HPV is still not available. In psoriasis,
a high frequency of EV HPV-5 and other EV HPVs in the skin and the presence
of specific HPV-5 antibodies strongly suggest expression of EV HPV proteins
in this extensive epidermal proliferation. Epidermodysplasia verruciformis
HPV-5 may also be transiently expressed in epidermal repair processes, whereas
in psoriasis there is a continuous epidermal proliferation that could result
in persistent viral expression. A potential contribution of EV HPVs to the
pathogenesis of psoriasis is also supported by the recently disclosed co-localization
of susceptibility loci for psoriasis and EV in the same region of chromosome
arm 17qter; however, specific genes for both conditions are still not identified.
From the Department of Dermatology and Venereology, Warsaw School of
Medicine, Warsaw, Poland.
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