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Quantificazione mediante PCR dell’EBV-DNA da biopsie cutanee di pazienti con linfomi cutanei primitivi (micosi fungoide e sindrome di Sèzary)

Authors

Mycosis fungoides (MF), the most indolent form of CTCL, originates from a clonal expansion of epidermotropic helper/memory T cells. Sezary syndrome (SS) is a rare primay epidermotropic cutaneous T-cell lymphoma in leukemic. The aetiopathogenesis of MF and SS remains obscure despite several investigations. Infectious, environmental and genetic factors have been implicated as potential aetiological agents. The studies investigating the role of EBV in CTCL present conflicting results. The different sensitivities of the technical methods used in the evaluation of the presence of viral DNA or virus-related antigens make comparison of the results difficult. The aim of this study was to retrospectively evaluate the EBV-DNA load in skin biopsies from MF and SS patients by a highly sensitive (1-10 EBV-DNA copies/reaction) quantitative-competitive PCR (QC-PCR) developed in our lab to better asses the relationship between EBV and CTCL. Skin biopsies were obtained from 21 MF and 10 SS patients; skin biopsies from a 8 patients with inflammatory skin disease were used as controls. EBV-DNA was detected in 70% of biopsies from SS patients vs. 0% of MF patients. No control patients resulted EBV-DNA positive, as expected. In addition, in SS patients, the survival from diagnosis is lesser in EBV-positive patients vs.EBV-negative patients even if not statistically significant.We are going to investigate the presence of EBV-DNA in peripheral blood of a larger number of patients and to evaluate the pattern of viral genes expression, to better assess the aetiopathogenetical role of EB virus in this kind of neoplasies.

How to Cite

Merlino, C., Bergallo, M., Costa, C., Novelli, M., Ponti, R., Margio, S., Sidoti, F., Terlizzi, M. E., Ortoncelli, M., Cavallo, R., & Bernengo, M. G. (2007). Quantificazione mediante PCR dell’EBV-DNA da biopsie cutanee di pazienti con linfomi cutanei primitivi (micosi fungoide e sindrome di Sèzary). Microbiologia Medica, 22(2). https://doi.org/10.4081/mm.2007.2618