Crosstalk Between DNA Damage and Inflammation in the Multiple Steps of Gastric Carcinogenesis

  • Olga SokolovaEmail author
  • Michael Naumann
Part of the Current Topics in Microbiology and Immunology book series (CT MICROBIOLOGY, volume 421)


Over the last years, intensive investigations in molecular biology and cell physiology extended tremendously the knowledge about the association of inflammation and cancer. In frame of this paradigm, the human pathogen Helicobacter pylori triggers gastritis and gastric ulcer disease, and contributes to the development of gastric cancer. Mechanisms, by which the bacteria-induced inflammation in gastric mucosa leads to intestinal metaplasia and carcinoma, are represented in this review. An altered cell-signaling response and increased production of free radicals by epithelial and immune cells account for the accumulation of DNA damage in gastric mucosa, if infection stays untreated. Host genetics and environmental factors, especially diet, can accelerate the process, which offers the opportunity of intervention based on a balanced nutrition. It is supposed that inflammation might influence stem- or progenitor cells in gastric tissue predisposing for metaplasia or tumor relapse. Herein, DNA is strongly mutated and labile, which restricts therapy options. Thus, the understanding of the mechanisms that underlie gastric carcinogenesis will be of preeminent importance for the development of strategies for screening and early detection. As most gastric cancer patients face late-stage disease with a poor overall survival, the development of multi-targeted therapeutic intervention strategies is a major challenge for the future.


Helicobacter pylori Oxidative stress DNA repair Genomic instability Stem cells 



This work was supported by the German Research Foundation to M.N. (CRC-854 A04).


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© Springer Nature Switzerland AG 2019

Authors and Affiliations

  1. 1.Institute of Experimental Internal MedicineOtto von Guericke UniversityMagdeburgGermany

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