Reactivation of telomerase has been implicated in human tumorigenesis, but the underlying mechanisms remain poorly understood. Here we report the presence of recurrent somatic mutations in the TERT promoter in cancers of the central nervous system (43%), bladder (59%), thyroid (follicular cell-derived, 10%) and skin (melanoma, 29%). In thyroid cancers, the presence of TERT promoter mutations (when occurring tog...
A doença de Kawasaki é vasculite sistêmica e aguda de etiologia desconhecida. Constitui a principal causa de doença cardíaca adquirida em crianças nos EUA. Ocorre mais frequentemente em meninos, 80% dos casos em crianças com menos de cinco anos, sendo rara após os oito anos. Pode atingir crianças de todas as raças, tendo maior incidência entre os descendentes asiáticos. Caracteriza-se por febre, conjuntivite bi...
Papillary thyroid carcinoma (PTC) is the most prevalent type of endocrine cancer and, in recent epidemiological surveys, one of the types of human cancer whose incidence is growing. Despite the favourable outcome and long survival rates of most patients, some tumours display an aggressive behaviour and may progress to the highly aggressive and lethal, anaplastic thyroid carcinoma. In recent years, several progr...
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