Differences in ancestry and presence of gastric precursor lesions in individuals with young- and average-onset gastric cancer Journal Article


Authors: Magahis, P. T.; Cornet, N.; Tang, L.; Arora, K.; Hingorani, N.; King, S.; Markowitz, A. J.; Schattner, M.; Shimada, S.; Maron, S. B.; Vardhana, S.; Lumish, M.; Cercek, A.; Janjigian, Y. Y.; Coit, D.; Mendelsohn, R. B.; Berger, M. F.; Strong, V. E.; Stadler, Z. K.; Laszkowska, M.
Article Title: Differences in ancestry and presence of gastric precursor lesions in individuals with young- and average-onset gastric cancer
Abstract: Background: There has been a paradoxical rise in young-onset gastric cancer (YOGC), defined as gastric cancer (GC) diagnosed before age 50. Precursor lesions may contribute to pathogenesis, though their role in progression to different histologic subtypes is unclear. The impact of self-reported race is also poorly characterized and may be unreliable as a proxy for genetic differences. We aimed to compare differences in histology and genetic ancestry between YOGC and average-onset gastric cancer (AOGC). Methods: This retrospective cohort included all patients with GC at Memorial Sloan Kettering (MSK) from January 2013 to March 2021. Data on demographics, tumor characteristics, and precursor lesions were collected. Genetic ancestry was inferred from MSK-Integrated Mutation Profiling of Actionable Cancer Targets panel. Results: Of 1685 individuals with GC, 290 had YOGC. Compared to AOGC, individuals with YOGC tended to be female, Hispanic, foreign-born, and feature diffuse-type histology. YOGC was less likely to have precursor lesions, including intestinal metaplasia (20% vs. 37%, p < 0.01) and dysplasia (4% vs. 14%, p < 0.01). Of 560 patients with ancestry data, 127 had YOGC. Admixed, East Asian, and South Asian ancestries were more likely to present with YOGC while Europeans presented with AOGC. Intestinal metaplasia was enriched among East Asians, maintained when stratifying by histology and GC onset. Conclusions: We observed YOGC was more common in East and South Asians, and while YOGC may be less likely to develop in the setting of precursor lesions these high-risk states may also be enriched in East Asians. Future research is needed to understand drivers behind such differences and outcome disparities given these individuals may be less amenable to endoscopic interventions. © 2024 The Author(s). Cancer Medicine published by John Wiley & Sons Ltd.
Keywords: adult; human tissue; aged; middle aged; metaplasia; retrospective studies; genetics; histopathology; pathogenesis; cancer staging; cohort analysis; pathology; retrospective study; risk factor; histology; carcinogenesis; screening; gastrectomy; stomach cancer; decision making; onset age; age of onset; stomach neoplasms; ethnicity; helicobacter pylori; stomach tumor; hispanic; precancerous conditions; precancer; demographics; gastroesophageal junction; ancestry group; stomach lymphoma; natural language processing; stomach biopsy; genetic difference; south asian; humans; human; male; female; article; ancestry; precursor lesion; young-onset gastric cancer
Journal Title: Cancer Medicine
Volume: 13
Issue: 23
ISSN: 2045-7634
Publisher: Wiley Blackwell  
Date Published: 2024-12-01
Start Page: e70451
Language: English
DOI: 10.1002/cam4.70451
PUBMED: 39629931
PROVIDER: scopus
PMCID: PMC11615756
DOI/URL:
Notes: Article -- MSK Cancer Center Support Grant (P30 CA008748) acknowledged in PubMed and PDF -- MSK corresponding author is Monika Laszkowska -- Source: Scopus
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MSK Authors
  1. Arnold J Markowitz
    138 Markowitz
  2. Zsofia Kinga Stadler
    391 Stadler
  3. Yelena Yuriy Janjigian
    395 Janjigian
  4. Laura Hong Tang
    447 Tang
  5. Vivian Strong
    265 Strong
  6. Daniel Coit
    542 Coit
  7. Michael Forman Berger
    765 Berger
  8. Mark Schattner
    169 Schattner
  9. Melissa Amy Lumish
    39 Lumish
  10. Santosha Adipudi Vardhana
    102 Vardhana
  11. Steven Maron
    103 Maron
  12. Kanika Suresh Arora
    27 Arora
  13. Stephanie King
    6 King
  14. Shoji Shimada
    11 Shimada