Polymorphism of the CD30 Promoter Microsatellite Repressive Element Is Associated with Development of Primary Cutaneous Lymphoproliferative Disorders

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Abstract
Lymphomatoid papulosis is a preneoplastic cutaneous lymphoproliferative disorder characterized by overexpression of CD30, a member of the tumor necrosis factor receptor superfamily. CD30 signaling is known to have an effect on the growth and survival of lymphoid cells. Therefore, we hypothesized that the development of lymphomatoid papulosis and progression to an associated neoplasm such as cutaneous and systemic anaplastic large cell lymphoma may reflect an underlying genetic defect. In this study, we determined that two allelic forms of the CD30 promoter microsatellite repressive element, designated 30M377 and 30M362, are associated with the development of lymphomatoid papulosis and CD30+ lymphomas in lymphomatoid papulosis patients, respectively. These findings suggest that allele-specific differences in the control of CD30 transcription may determine the pathogenesis of the spectrum of CD30+ cutaneous lymphoproliferative disorders.
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