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MicroRNAs in Gastric Cancer

  • Hidekazu Suzuki
  • Yoshimasa Saito
  • Toshifumi Hibi
Chapter

Abstract

MicroRNAs (miRNAs) are small non-coding RNAs that function as endogenous silencers of numerous target genes. Hundreds of human miRNAs have been identified in the human genome and are expressed in a tissue-specific manner, playing important roles in cell proliferation, apoptosis, and differentiation. Links between miRNAs and gastric cancer have become increasingly apparent, and the aberrant expression of miRNAs may contribute to the development and progression of human gastric cancer. Recent studies have shown that some miRNAs play roles as tumor suppressors or oncogenes in gastric cancer. For example, miR-21 (one of the major oncogenic miRNAs) is activated by Helicobacter pylori infection and is increased in gastric cancer. On the contrary, the miR-29 family is down-regulated in the malignancy, suggesting that it is a potential tumor suppressor of gastric cancer. MiRNA expression profiling may be a powerful clinical tool for diagnosis and the regulation of miRNA expression could be a novel therapeutic strategy for the disease. This chapter summarizes the biological importance of miRNAs in human gastric cancer.

Keywords

Gastric Cancer Gastric Cancer Cell miRNA Expression Pylorus Eradication Atrophic Gastritis 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Netherlands 2011

Authors and Affiliations

  • Hidekazu Suzuki
    • 1
  • Yoshimasa Saito
    • 1
  • Toshifumi Hibi
    • 2
  1. 1.Division of Gastroenterology and Hepatology, Department of Internal MedicineKeio University School of MedicineTokyoJapan
  2. 2.Department of Internal MedicineKeio University School of MedicineTokyoJapan

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