4.4 Editorial Material

Genetic predisposition to Helicobacter pylori-induced gastric precancerous conditions

Journal

WORLD JOURNAL OF GASTROINTESTINAL ONCOLOGY
Volume 2, Issue 10, Pages 369-379

Publisher

BAISHIDENG PUBLISHING GROUP INC
DOI: 10.4251/wjgo.v2.i10.369

Keywords

Helicobacter pylori; Gastric cancer; Single nucleotide polymorphisms; Genetic predisposition to disease; Gastric precancerous conditions

Funding

  1. Japanese Ministry of Education, Culture, Sports, Science and Technology

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Gastric cancer is the most common malignancy of the gastrointestinal tract in East Asian populations and the second most frequent cause of cancer-related mortality in the world. While previous studies have investigated the genetic factors involved in gastric carcinogenesis, there still exist relatively few studies that have investigated the genetic traits associated with the risk of gastric precancerous conditions. In this paper we will review the biology and genetic polymorphisms involved in the genesis of gastric precancerous conditions reported to date and discuss the future prospects of this field of study. The associations of gastric precancerous conditions with polymorphisms in the cytotoxin-associated gene A-related genes (e.g. PTPN11 G/A at intron 3, rs2301756), those in the genes involved in host immunity against Helico-bacter pylori (H. pylori) infection (e.g. TLR4 + 3725G/C, rs11536889) or polymorphisms of the genes essential for the development/differentiation of the gastric epithelial cells (e.g. RUNX3 T/A polymorphism at intron 3, rs760805) have been reported to date. Genetic epide-miological studies of the associations between H. pylori induced gastric precancerous conditions and other gene polymorphisms in these pathways as well as polymorphisms of the genes involved in other pathways like oxidative DNA damage repair pathways would provide useful evidence for the individualized prevention of these H. pylori -induced gastric precancerous conditions. (C) 2010 Baishideng. All rights reserved.

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