Merkel cell carcinoma (MCC) is a rarely made but potentially devastating diagnosis. While local disease might be cured by surgery and radiotherapy, advanced disease is usually rapidly progressive and fatal. Until very recently, the only approach to metastatic MCC was cytotoxic chemotherapy with results so disappointing that current treatment guidelines discourage its use and recommend clinical trial as a more viable treatment option. Fortunately, recent advances in the understanding of the molecular pathogenesis of this tumour have produced a wide variety of experimental treatments for MCC, some of which are quite promising. The most current information regarding the diagnosis, staging, management of this tumour is briefly presented as well as new insights into the molecular basis of MCC and therapeutic approaches to MCC.
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http://dx.doi.org/10.1016/j.pathol.2017.07.003 | DOI Listing |
Clin Exp Dermatol
January 2025
Skin Cancer Center, Azienda Unità Sanitaria Locale - IRCCS di Reggio Emilia, Reggio Emilia, Italy.
Background: Recent studies analyzed the impact of Merkel cell polyomavirus (MCPyV) on the prognosis of Merkel cell carcinoma (MCC) patients. No data on specific morphological clinical differences of MCPyV+ or MCPyV- are currently available neither on the possible prognostic implication of different clinical presentation of MCC.
Objectives: 1) to describe clinicopathological characteristics of MCC patients and the prevalence of MCPyV infection in an Italian cohort of patients; 2) to define possible differences in clinicopathological and prognostic features among MCPyV+ and MCPyV- MCCs.
EMBO Mol Med
January 2025
Sabri Ülker Center for Metabolic Research, Department of Molecular Metabolism, Harvard T.H. Chan School of Public Health, Boston, MA, USA.
Host metabolic fitness is a critical determinant of infectious disease outcomes. Obesity, aging, and other related metabolic disorders are recognized as high-risk disease modifiers for respiratory infections, including coronavirus infections, though the underlying mechanisms remain unknown. Our study highlights fatty acid-binding protein 4 (FABP4), a key regulator of metabolic dysfunction and inflammation, as a modulator of SARS-CoV-2 pathogenesis, correlating strongly with disease severity in COVID-19 patients.
View Article and Find Full Text PDFEndocr Pathol
January 2025
Department of Pathology, Istanbul Faculty of Medicine, Istanbul University, Millet Caddesi, Fatih, Istanbul, 34093, Turkey.
Merkel cell carcinoma (MCC) is diagnosed through histopathological and immunohistochemical examination of biopsies from skin or other organs. Its distinguishing features include perinuclear dot-like staining with Cytokeratin 20 (CK20) and detection of Merkel cell polyomavirus (MCPyV) using various methods. However, CK20 and MCPyV negative MCC cases have been reported at varying rates.
View Article and Find Full Text PDFNanoscale
January 2025
Ludwig-Maximilians-University, Department of Pharmacy, Pharmaceutical Technology and Biopharmaceutics, Butenandtstraße 5-13, Munich, 81377, Germany.
CRISPR-Cas9 has emerged as a highly effective and customizable genome editing tool, holding significant promise for the treatment of KRAS mutations in lung cancer. In this study, we introduce a novel micelleplex, named C14-PEI, designed to co-deliver Cas9 mRNA and sgRNA efficiently to excise the mutated KRAS allele in lung cancer cells. C14-PEI is synthesised from 1,2-epoxytetradecane and branched PEI 600 Da a ring-opening reaction.
View Article and Find Full Text PDFACS Appl Mater Interfaces
January 2025
Department of Biomedical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea.
Merkel cell carcinoma (MCC) is a rare but aggressive neuroendocrine skin cancer with limited treatment options, often associated with Merkel cell polyomavirus (MCPyV) and marked by hypoxic tumor microenvironments that promote resistance to therapies. Belzutifan, an FDA-approved hypoxia-inducible factor-2α (HIF-2α) inhibitor, has shown promise in inhibiting tumor growth; however, its clinical efficacy is hindered by its low solubility, rapid clearance, and limited bioavailability. In this study, we present a strategy using porous silicon (pSi) microparticles and nanoparticles as carriers for the sustained delivery of benzoate to MCC cells.
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