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  • Title: Therapeutic and prognostic significance of PARP-1 in advanced mycosis fungoides and Sezary syndrome.
    Author: Lemchak D, Banerjee S, Digambar SS, Hood BL, Conrads TP, Jedrych J, Geskin L, Akilov OE.
    Journal: Exp Dermatol; 2018 Feb; 27(2):188-190. PubMed ID: 29205518.
    Abstract:
    While mycosis fungoides (MF) is typically an indolent malignancy, it may infrequently undertake an aggressive course. We used proteomic analyses to identify a biomarker of the aggressive course of MF. Results of this investigation demonstrated that PARP-1, heat-shock protein family A (Hsp70) member 1 like (HSAP1L), Hsp70 member 1A (HSPA1A), ATP-depending RNA helicase (DDX17) and the α-isoform of lamina-associated polypeptide 2 (TMPO) had higher expression in aggressive disease versus non-aggressive. Moreover, PARP-1 was overexpressed in patients with early stage of MF who developed later an aggressive disease. PARP-1 was evaluated as a new target for therapy, demonstrating the selective dose-dependent cytotoxic effect of PARP inhibitors on Sézary cells in comparison with non-malignant lymphocytes. In conclusion, we believe that PARP-1 may serve not only as a biomarker at initial biopsies for a disease that may become aggressive but also as a new therapeutic target of advanced MF and Sézary syndrome.
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