Browsing by Author "Filipe, P"
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- Epidemiology of Psoriasis in Portugal: A Population-Based StudyPublication . Torres, T; Filipe, P; Menezes Brandão, F; Figueiredo, A; Pinto Soares, A; Sousa Basto, A; Rebelo, C; Correia, O; Ferreira, P; Brasileiro, A; Mendes-Bastos, P; Paiva-Lopes, MJ; Marques Pinto, G; Severo, M; Mendonça, D; Oliveira, P; Selores, M; Massa, A; Pereira, M; Tavares Bello, R; Portuguese Society of Dermatology and Venereology, On behalf of the Portuguese Psoriasis Group of theIntroduction: Psoriasis is a common, chronic, and inflammatory skin disorder with a high personal, social and economic burden and important implica-tions for healthcare systems. The aim of this study was to provide an epidemiological characterization of individuals with psoriasis in Portugal.Material and Methods: A large observational, cross-sectional, nationwide, population-based survey study developed by the Portuguese Psoriasis Group of the Portuguese Society of Dermatology and Venereology (GPP-SPDV). A structured questionnaire was designed and applied by experienced inter-viewers to a random, representative sample of Portuguese individuals with psoriasis and/or psoriatic arthritis. Patients were considered to have psoriasis if they replied positively to one of the following questions: “Does any physician have ever diagnosed you with psoriasis?” or “Do you have a skin disorder characterized by scaling, reddish skin lesions located in the elbows/knees/scalp?”.Results: A total of 6381 individuals were interviewed, of which 283 met the criteria for psoriasis, corresponding to a prevalence rate of 4.4% (95% CI 3.95 – 4.98). Out of the participants that met psoriasis criteria, 24% had suggestive signs/symptoms but did not have a clinical diagnosis established and were not being monitored by a physician. Although more than 70% of participants had active disease (scaling, erythema, or pruritus) and one third had joint symptoms, only 12% were on systemic treatment. Fifty percent of participants with psoriasis (n = 139) had relevant comorbidities (most frequently depression/anxiety and cardiometabolic diseases). Sixteen percent of participants with psoriasis (n = 46) reported that psoriasis interfered with their daily activities (median impact of 5 in a 0 – 10 scale) and 12% mentioned the disease had an impact in their sexual life (median impact of 5 in a 0 – 10 scale). Conclusion: The results of this study suggest that the prevalence rate of psoriasis is likely to be high in Portugal, and several gaps exist at different levels of healthcare delivery to these patients, from diagnosis to treatment. This study provides important data for the future planning of interventions targeting the improvement of psoriasis care in Portugal.
- Portuguese Position Paper on the Use of Biosimilars in PsoriasisPublication . Torres, T; Ferreira, A; Ferreira, P; Henriques, M; Leite, L; Magina, S; Marques Pinto, G; Oliveira, H; Sousa Basto, A; Tavares Bello, R; Varela, P; Massa, A; Selores, M; Filipe, P
- Tumor-Infiltrating T Cells in Skin Basal Cell Carcinomas and Squamous Cell Carcinomas: Global Th1 Preponderance with Th17 Enrichment—A Cross-Sectional StudyPublication . Cunha, D; Neves, M; Silva, D; Silvestre, AR; Nunes, PB; Arrobas, F; Ribot, JC; Ferreira, F; Moita, LF; Soares-de-Almeida, L; Silva, JM; Filipe, P; Ferreira, JBasal cell carcinomas (BCCs) and squamous cell carcinomas (SCCs) are high-incidence, non-melanoma skin cancers (NMSCs). The success of immune-targeted therapies in advanced NMSCs led us to anticipate that NMSCs harbored significant populations of tumor-infiltrating lymphocytes with potential anti-tumor activity. The main aim of this study was to characterize T cells infiltrating NMSCs. Flow cytometry and immunohistochemistry were used to assess, respectively, the proportions and densities of T cell subpopulations in BCCs (n = 118), SCCs (n = 33), and normal skin (NS, n = 30). CD8+ T cells, CD4+ T cell subsets, namely, Th1, Th2, Th17, Th9, and regulatory T cells (Tregs), CD8+ and CD4+ memory T cells, and γδ T cells were compared between NMSCs and NS samples. Remarkably, both BCCs and SCCs featured a significantly higher Th1/Th2 ratio (~four-fold) and an enrichment for Th17 cells. NMSCs also showed a significant enrichment for IFN-γ-producing CD8+T cells, and a depletion of γδ T cells. Using immunohistochemistry, NMSCs featured denser T cell infiltrates (CD4+, CD8+, and Tregs) than NS. Overall, these data favor a Th1-predominant response in BCCs and SCCs, providing support for immune-based treatments in NMSCs. Th17-mediated inflammation may play a role in the progression of NMSCs and thus become a potential therapeutic target in NMSCs.