ObjectiveTo evaluate results of the ‘pSORRIDI’ experience (which is a prevention campaign to evaluate the prevalence of comorbidities, multidisciplinary needs and appropriateness of the therapeutic approach for comorbidities) in patients already being treated for psoriasis.MethodsTelephone interviews were conducted in patients with psoriasis, who then underwent comprehensive evaluation and investigation of comorbidities. If necessary, patients were referred to specialist cardiology, endocrinology and/or rheumatology services.ResultsOverall, 72.0% (54/75) of patients required a multidisciplinary consultation. Among patients referred to cardiology, therapeutic adjustment was needed in 33.3% (five of 15) patients and a redefined diagnosis in 26.7% (four of 15) cases. Among patients undergoing endocrinology evaluations, therapeutic adjustment and a redefined diagnosis were needed in 61.1% (11/18) and 33.3% (six of 18) patients, respectively; for rheumatology evaluations, therapeutic adjustment and a redefined diagnosis were needed in 76.2% (16/21) and 19.0% (four of 21) of patients, respectively.ConclusionsAmong patients with psoriasis, there may be a need for an improvement in the diagnosis of underlying comorbid conditions, and in disease management of both psoriasis and any comorbid conditions.

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Therapy of multiple sclerosis (MS) with disease-modifying agents such as natalizumab or fingolimod has been associated with the development of cutaneous melanoma. Here we briefly revise literature data and report of a case of a 48-year old woman who developed a melanoma and several atypical naevi after sub sequential treatment with natalizumab (1 year) and fingolimod (7 years). By immunohistochemistry we observed the presence of T cells and leukocyte infiltration as well as of vascular endothelial growth factor (VEGF)-A expression in the patient melanoma biopsy. Then, we analyzed proliferation, migration and VEGF-A expression in three melanoma cell lines and found out that both natalizumab and fingolimod inhibited tumor cell proliferation but promoted or blocked cell migration depending on the cell line examined. VEGF-A secretion was augmented in one melanoma cell line only after fingolimod treatment. In conclusion, our in vitro data do not support the hypothesis of a direct action of natalizumab or fingolimod on melanoma progression but acting on the tumor microenvironment these treatments could indirectly favor melanoma evolution.

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