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Review
. 2018 Jul 24;9(57):31146-31162.
doi: 10.18632/oncotarget.25757.

Helicobacter pylori associated factors in the development of gastric cancer with special reference to the early-onset subtype

Małgorzata Pucułek  1 , Julita Machlowska  1 , Ryszard Wierzbicki  2   3 , Jacek Baj  1 , Ryszard Maciejewski  1 , Robert Sitarz  1   2   4
Affiliations
Review

Helicobacter pylori associated factors in the development of gastric cancer with special reference to the early-onset subtype

Małgorzata Pucułek et al. Oncotarget. .

Abstract

Nowadays, gastric cancer is one of the most common neoplasms and the fourth cause of cancer-related death on the world. Regarding the age at the diagnosis it is divided into early-onset gastric carcinoma (45 years or younger) and conventional gastric cancer (older than 45). Gastric carcinomas are rarely observed in young population and rely mostly on genetic factors, therefore provide the unique model to study genetic and environmental alternations. The latest research on early-onset gastric cancer are trying to explain molecular and genetic basis, because young patients are less exposed to environmental factors predisposing to cancer. In the general population, Helicobacter pylori, has been particularly associated with intestinal subtype of gastric cancers. The significant association of Helicobacter pylori infection in young patients with gastric cancers suggests that the bacterium has an etiologic role in both diffuse and intestinal subtypes of early-onset gastric cancers. In this paper we would like to ascertain the possible role of Helicobacter pylori infection in the development of gastric carcinoma in young patients. The review summarizes recent literature on early-onset gastric cancers with special reference to Helicobacter pylori infection.

Keywords: H. pylori; early-onset gastric cancer; gastric cancer; genotypes; virulence factors.

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Conflict of interest statement

CONFLICTS OF INTEREST The authors declare that they have no conflicts of interest.

Figures

Figure 1
Figure 1. Molecular pathogenesis of GC patient’s infected with H. pylori
Figure 2
Figure 2. H. pylori infection at the age before 45 years
See this image and copyright information in PMC

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