{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,19]],"date-time":"2026-04-19T19:29:38Z","timestamp":1776626978652,"version":"3.51.2"},"reference-count":43,"publisher":"MDPI AG","issue":"9","license":[{"start":{"date-parts":[[2024,4,26]],"date-time":"2024-04-26T00:00:00Z","timestamp":1714089600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Diagnostics"],"abstract":"<jats:p>Pancreatic cancer is one of the deadliest malignancies, characterized by late-stage diagnosis and limited treatment options. Comprehensive genomic profiling plays an important role in understanding the molecular mechanisms underlying the disease and identifying potential therapeutic targets. Cell blocks (CBs), derived from EUS-FNA, have become valuable resources for diagnosis and genomic analysis. We examine the molecular profile of pancreatic ductal adenocarcinoma (PDAC) using specimens obtained from CB EUS-FNA, across a large gene panel, within the framework of next-generation sequencing (NGS). Our findings revealed that over half (55%) of PDAC CB cases provided adequate nucleic acid for next-generation sequencing, with tumor cell percentages averaging above 30%. Despite challenges such as low DNA quantification and degraded DNA, sequencing reads showed satisfactory quality control statistics, demonstrating the detection of genomic alterations. Most cases (84.6%) harbored at least one gene variant, including clinically significant gene mutation variants such as KRAS, TP53, and CDKN2A. Even at minimal concentrations, as long as the extracted DNA is of high quality, performing comprehensive molecular profiling on PDAC samples from cell blocks has remained feasible. This strategy has yielded valuable information about the diagnosis, genetic landscape, and potential therapeutic targets, aligning closely with a precision cytopathology approach.<\/jats:p>","DOI":"10.3390\/diagnostics14090906","type":"journal-article","created":{"date-parts":[[2024,5,2]],"date-time":"2024-05-02T08:42:57Z","timestamp":1714639377000},"page":"906","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["Comprehensive Genomic Studies on the Cell Blocks of Pancreatic Cancer"],"prefix":"10.3390","volume":"14","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-3860-6660","authenticated-orcid":false,"given":"Ricella","family":"Souza da Silva","sequence":"first","affiliation":[{"name":"IPATIMUP Diagnostics, IPATIMUP\u2014Institute of Molecular Pathology and Immunology of Porto University, 4200-135 Porto, Portugal"}]},{"given":"Maria Jo\u00e3o","family":"Pina","sequence":"additional","affiliation":[{"name":"IPATIMUP Diagnostics, IPATIMUP\u2014Institute of Molecular Pathology and Immunology of Porto University, 4200-135 Porto, Portugal"}]},{"given":"Lu\u00eds","family":"Cirnes","sequence":"additional","affiliation":[{"name":"IPATIMUP Diagnostics, IPATIMUP\u2014Institute of Molecular Pathology and Immunology of Porto University, 4200-135 Porto, Portugal"}]},{"given":"Lu\u00eds","family":"Gouveia","sequence":"additional","affiliation":[{"name":"Faculty of Medicine, University of Porto, 4200-319 Porto, Portugal"}]},{"given":"Andr\u00e9","family":"Albergaria","sequence":"additional","affiliation":[{"name":"IPATIMUP Diagnostics, IPATIMUP\u2014Institute of Molecular Pathology and Immunology of Porto University, 4200-135 Porto, Portugal"},{"name":"Faculty of Medicine, University of Porto, 4200-319 Porto, Portugal"},{"name":"I3S\u2014Instituto de Investiga\u00e7\u00e3o e Inova\u00e7\u00e3o em Sa\u00fade, University of Porto, 4200-135 Porto, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1006-6946","authenticated-orcid":false,"given":"Fernando","family":"Schmitt","sequence":"additional","affiliation":[{"name":"IPATIMUP Diagnostics, IPATIMUP\u2014Institute of Molecular Pathology and Immunology of Porto University, 4200-135 Porto, Portugal"},{"name":"Faculty of Medicine, University of Porto, 4200-319 Porto, Portugal"},{"name":"CINTESIS@RISE (Health Research Network), Faculty of Medicine, University of Porto, 4200-319 Porto, Portugal"}]}],"member":"1968","published-online":{"date-parts":[[2024,4,26]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1725","DOI":"10.1038\/s41401-020-00584-2","article-title":"Mutations in Key Driver Genes of Pancreatic Cancer: Molecularly Targeted Therapies and Other Clinical Implications","volume":"42","author":"Hu","year":"2021","journal-title":"Acta Pharmacol. 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