2019
DOI: 10.14735/amko2019s109
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GAPPS – Gastric Adenocarcinoma and Proximal Polyposis of the Stomach Syndrome in 8 Families Tested at Masaryk Memorial Cancer Institute – Prevention and Prophylactic Gastrectomies

Abstract: Gastric adenocarcinoma and proximal polyposis of the stomach (GAPPS) is a rare variant of familial adenomatous polyposis. It is an autosomal-dominant cancer-predisposition syndrome with massive polyposis of the stomach and a significant risk of gastric adenocarcinoma. Li et al., 2016, described point mutations in the Ying Yang 1 binding site of the APC gene 1B promoter associated with GAPPS syndrome. The first GAPPS syndrome in a Czech family was described in 2016. At Masaryk Memorial Cancer Institute, GAPPS s… Show more

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Cited by 28 publications
(38 citation statements)
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“…The gene mutations responsible were described by Li et al in 2016 as various point mutations in Exon 1B of the APC gene 49 . Given its recent discovery, data concerning lifetime risk of gastric cancer is sparse, however, in the available literature, risks of 12%–20% have been described 15–18 …”
Section: Genetic Risk Factors and Familial Syndromesmentioning
confidence: 99%
“…The gene mutations responsible were described by Li et al in 2016 as various point mutations in Exon 1B of the APC gene 49 . Given its recent discovery, data concerning lifetime risk of gastric cancer is sparse, however, in the available literature, risks of 12%–20% have been described 15–18 …”
Section: Genetic Risk Factors and Familial Syndromesmentioning
confidence: 99%
“…36 For GAPPS patients, point pathogenic variants in exon 1B of APC (c.−191T > C, c.−192A > G, and c.−195A > C) have been found in Caucasian. 37 , 38 However, we found no reports from LATAM cohorts exposing germline pathogenic variants for these two syndromes.…”
Section: Germline Pathogenic Variants Associated With Hereditary Ga I...mentioning
confidence: 67%
“…Although several families have been reported in the literature, clinical knowledge of GAPPS is limited. [5][6][7][8][9] Our findings suggest that GAPPS-associated variants are rare among individuals at risk for inherited predisposition to primarily diffuse GC, identified in one kindred with a history of gastric polyposis evaluated retrospectively. Based on current…”
mentioning
confidence: 70%