Helicobacter pylori associated factors in the development of gastric cancer with special reference to the early-onset subtype
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Małgorzata Pucułek1,*, Julita Machlowska1,*, Ryszard Wierzbicki2,3, Jacek Baj1, Ryszard Maciejewski1 and Robert Sitarz1,2,4
1Department of Human Anatomy, Medical University of Lublin, Poland
2Department of Surgery with Trauma, Orthopaedic and Urological Subunit, Independent Public Health Care Center of the Ministry of Interior and Administration in Lublin, Poland
3Department of Surgical Oncology, Medical University of Lublin, Poland
4Department of Surgery, St. John's Cancer Center, Lublin, Poland
*These authors have contributed equally to this work
Robert Sitarz, email: [email protected]
Keywords: early-onset gastric cancer; gastric cancer; H. pylori; genotypes; virulence factors
Received: May 23, 2018 Accepted: June 22, 2018 Published: July 24, 2018
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.
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