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Hereditary gastric cancer:Three rules to reduce missed diagnoses

World Journal of Gastroenterology 2020年第13期26卷 1382-1393页

作者： paula assumpcao Taíssa Araújo André Khayat Geraldo Ishak Sidney Santos Williams Barra Joao Felipe Acioli Benedito Rossi Paulo assumpcao Programa de Pós-Graduacao em Genética e Biologia Molecular Universidade Federal do ParáBelém 66075-110Brazil Núcleo de Pesquisas em Oncologia Universidade Federal do ParáBelém 66073-000Brazil Hospital Universitário Joao de Barros Barreto Universidade Federal do ParáBelém 66073-000Brazil Centro de Oncologia e Aconselhamento Genético Hospital Sírio LibanêsSao Paulo 01308-050Brazil

Gastric cancer remains one of the most lethal *** incidence and mortality rates are quite *** main reason for the high mortality is diagnosis at advanced stages of disease,when treatment options are *** of the supposed strategies to overcome late-stage diagnosis is identifying people at high risk with the aim of establishing rigorous clinical control,including routine endoscopy and *** gastric cancer(HGC)syndromes,though representing a sizeable group to monitor for prevention or,at least,for early diagnosis,are apparently extremely *** low rate of HGC diagnosis might be related to the low rates of suspicion,insufficient familiarity about clinical diagnosis criteria,and the supposed conditional necessity of a molecular *** this review,we will discuss simple measures to increase HGC diagnosis by applying three rules that might provide an opportunity for precision care to benefit the families affected by this disease.

关键词： Hereditary gastric cancer Rules Diagnosis

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Traps and trumps from adjacent-to-tumor samples in gastric cancer research

引用

Chinese Journal of Cancer Research 2018年第5期30卷 564-567页

作者： Paulo Pimentel de assumpcao Andre Salim Khayat Taissa Maira Thomaz Araujo Williams Fernandes Barra Geraldo Ishak Mine Maria Pereira Cruz Ramos Sidney Emanuel Batista dos Santos Andrea Kely Campos Ribeiro dos Santos Samia Demachki paula Barauna de assumpcao Danielle Queiroz Calcagno Ney Pereira Carneiro dos Santos Monica Barauna de assumpcao Fabiano Cordeiro Moreira Andre Mauricio Ribeiro dos Santos Carolina Barauna de assumpcao Gregory Joseph Riggins Rommel Mario Rodriguez Burbano Oncology Research Center Federal University of Para Belem 66075-110 Brazil PhD Program in Genetics and Molecular Biology Federal University of Para Belem 66075-110 Brazil Gastrointestinal Endoscopy Service Joao de Barros Barreto University Hospital Belem 66073-000 Brazil Department of Surgical Oncology Oswaldo Cruz Germany Hospital Sao Paulo 01327-001 Brazil Department of Neurosurgery Johns Hopkins University Baltimore 21287 USA Laboratory of Molecular Biology Ophir Loyola Hospital Belem 66060-281 Brazil

The search for cancer biomarkers is frequently based on comparisons between tumors and adjacent-to-tumor samples. However, even after histological confirmation of been free of cancer cells, these adjacent-to-tumor samples might harbor molecular alterations which are not sufficient to cause them to look like cancer, but can differentiate these cells from normal cells. When comparing them, potential biomarkers are missed, and mainly the opportunity of finding initial aberrations presents in both tumors and adjacent samples, but not in true normal samples from non-cancer patients, resulting in misinterpretations about the carcinogenic process. Nevertheless, collecting adjacent-to-tumor samples brings trumps to be explored. The addition of samples from non-cancer patients opens an opportunity to increase the finds of the molecular cascade of events in the carcinogenic process. Differences between normal samples and adjacent samples might represent the first steps of the carcinogenic process. Adding samples of non-cancer patients to the analysis of molecular alterations relevant to the carcinogenic process opens a new window of opporttmides to the discovery of cancer biomarkers and molecular targets.

关键词： Adjacent-to-tumor trumps traps

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