Percorrer por autor "Montezuma, Diana"
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- Invisible for a few but essential for many: the role of Histotechnologists in the establishment of digital pathologyPublication . Magalhães, Gisela; Calisto, Rita; Freire, Catarina; Silva, Regina; Montezuma, Diana; Canberkg, Sule; Schmitt, FernandoDigital pathology (DP) is indisputably the future for histopathology laboratories. The process of digital implementation requires deep workflow reorganisation which involves an interdisciplinary team. This transformation may have the greatest impact on the Histotechnologist (HTL) profession. Our review of the literature has clearly revealed that the role of HTLs in the establishment of DP is being unnoticed and guidance is limited. This article aims to bring HTLs from behind-the-scenes into the spotlight. Our objective is to provide them guidance and practical recommendations to successfully contribute to the implementation of a new digital workflow. Furthermore, it also intends to contribute for improvement of study programs, ensuring the role of HTL in DP is addressed as part of graduate and post-graduate education. In our review, we report on the differences encountered between workflow schemes and the limitations observed in this process. The authors propose a digital workflow to achieve its limitless potential, focusing on the HTL’s role. This article explores the novel responsibilities of HTLs during specimen gross dissection, embedding, microtomy, staining, digital scanning, and whole slide image quality control. Furthermore, we highlight the benefits and challenges that DP implementation might bring the HTLs career. HTLs have an important role in the digital workflow: the responsibility of achieving the perfect glass slide.
- Phenotypic impact of deregulated expression of class I histone deacetylases in urothelial cell carcinoma of the bladderPublication . Neto, Susana; Quintela Vieira, Ana Filipa; Montezuma, Diana; Costa, Natália R.; Antunes, Luís; Baptista, Tiago; Oliveira, Ana Isabel; Pinho dos Santos Graça, Maria Inês; Rodrigues, Ângelo; Magalhães, José S.; Oliveira, Jorge; Henrique, Rui; Jerónimo, CarmenDeregulated expression of histone deacetylases (HDACs) has been implicated in tumorigenesis. Herein, we investigated class I HDACs expression in bladder urothelial cell carcinoma (BUCC), its prognostic value and biological significance. Significantly increased transcript levels of all HDACs were found in BUCC compared to 20 normal mucosas, and these were higher in lower grade and stage tumors. Increased HDAC3 levels were associated with improved patient survival. SiRNA experiments showed decrease cell viability and motility, and increased apoptosis. We concluded that class I HDACs play an important role in bladder carcinogenesis through deregulation of proliferation, migration and apoptosis, constituting putative therapeutic targets.