Somatic mutation of mitochondrial DNA in Helicobacter pylori-associated chronic gastritis in patients with and without gastric cancer

  • Authors:
    • Toru Hiyama
    • Shinji Tanaka
    • Hideyuki Shima
    • Kazuhiro Kose
    • Yasuhiko Kitadai
    • Masanori Ito
    • Masaharu Sumii
    • Masaharu Yoshihara
    • Fumio Shimamoto
    • Ken Haruma
    • Kazuaki Chayama
  • View Affiliations

  • Published online on: August 1, 2003     https://doi.org/10.3892/ijmm.12.2.169
  • Pages: 169-174
Metrics: Total Views: 0 (Spandidos Publications: | PMC Statistics: )
Total PDF Downloads: 0 (Spandidos Publications: | PMC Statistics: )


Abstract

Somatic mutations of the mitochondrial DNA (mtDNA) are associated with development of various types of human cancer. To elucidate the significance of somatic mutations of the mtDNA in gastric carcinogenesis, we examined mtDNA mutations in gastric cancers and in Helicobacter pylori-associated chronic gastritis (H. pylori-CG), which is associated with an increased risk for gastric cancer development. Specimens of gastric cancer and gastric mucosa were obtained from 73 gastric cancer patients with H. pylori-CG, 75 cancer-free H. pylori-CG patients and 30 H. pylori-negative healthy subjects. Mutations of a specific mononucleotide repeat (D310) of the mtDNA were examined by microsatellite assay. mtDNA mutations were detected in 9 of 56 (16%) gastric cancers, in 10 of 148 (7%) H. pylori-CG and none of the 30 H. pylori-negative healthy subjects. mtDNA mutations in H. pylori-CG were significantly more frequent in gastric cancer patients than in cancer-free patients (12% vs. 1%, p=0.008). In addition, mtDNA mutations in H. pylori-CG were significantly more frequent in patients with mtDNA mutated gastric cancer than in patients with mtDNA unmutated gastric cancer (66% vs. 4%, p<0.001). These data suggest that somatic mutations of the mtDNA may be involved in the early stages of gastric carcinogenesis.

Related Articles

Journal Cover

August 2003
Volume 12 Issue 2

Print ISSN: 1107-3756
Online ISSN:1791-244X

Sign up for eToc alerts

Recommend to Library

Copy and paste a formatted citation
x
Spandidos Publications style
Hiyama T, Tanaka S, Shima H, Kose K, Kitadai Y, Ito M, Sumii M, Yoshihara M, Shimamoto F, Haruma K, Haruma K, et al: Somatic mutation of mitochondrial DNA in Helicobacter pylori-associated chronic gastritis in patients with and without gastric cancer. Int J Mol Med 12: 169-174, 2003
APA
Hiyama, T., Tanaka, S., Shima, H., Kose, K., Kitadai, Y., Ito, M. ... Chayama, K. (2003). Somatic mutation of mitochondrial DNA in Helicobacter pylori-associated chronic gastritis in patients with and without gastric cancer. International Journal of Molecular Medicine, 12, 169-174. https://doi.org/10.3892/ijmm.12.2.169
MLA
Hiyama, T., Tanaka, S., Shima, H., Kose, K., Kitadai, Y., Ito, M., Sumii, M., Yoshihara, M., Shimamoto, F., Haruma, K., Chayama, K."Somatic mutation of mitochondrial DNA in Helicobacter pylori-associated chronic gastritis in patients with and without gastric cancer". International Journal of Molecular Medicine 12.2 (2003): 169-174.
Chicago
Hiyama, T., Tanaka, S., Shima, H., Kose, K., Kitadai, Y., Ito, M., Sumii, M., Yoshihara, M., Shimamoto, F., Haruma, K., Chayama, K."Somatic mutation of mitochondrial DNA in Helicobacter pylori-associated chronic gastritis in patients with and without gastric cancer". International Journal of Molecular Medicine 12, no. 2 (2003): 169-174. https://doi.org/10.3892/ijmm.12.2.169