Helicobacter Pylori infection induces candidate stem cell marker musashi-1 in the human gastric epithelium

Hiroaki Murata, Shingo Tsuji, Masahiko Tsujii, Toru Nakamura, Hai Ying Fu, Hiroshi Eguchi, Kayoko Asahi, Hideyuki Okano, Sunao Kawano, Norio Hayashi

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20 Citations (Scopus)

Abstract

Musashi-1 (Msi-1), a mammalian neural RNA-binding protein, has been found to play important roles in the maintenance of stem cell states and differentiation in neural stem cells and mouse intestinal cells. We explored Msi-1 expression and its potential implications in the human stomach. Reverse transcription-PCR revealed that Msi-1 levels were significantly higher in the corpus than in antrum in Helicobacter pylori (Hp)-infected patients (n = 49) (P < 0.00001) in paired biopsy samples, whereas they were low and comparable at these two sites in Hp-negative patients (n = 31). Msi-1 levels were significantly higher in the Hp-infected corpus (n = 107) than in the Hp-negative corpus (n = 69) (P < 0.00000001). Immunohistochemistry and in situ hybridization demonstrated that Msi-1 was expressed at the base and neck/isthmus region of the fundic glands and partly co-expressed in Ki-67-positive cells in the corpus and antrum. Msi-1 levels correlated with Hp density (P < 0.05). Based on these results, we conclude that Hp infection strongly induces Msi-1 in the corpus. Given its expression in dividing cells, Msi-1 may modulate the state of gastric progenitor cells.

Original languageEnglish
Pages (from-to)363-369
Number of pages7
JournalDigestive Diseases and Sciences
Volume53
Issue number2
DOIs
Publication statusPublished - 2008 Feb 1

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Keywords

  • Helicobacter pylori
  • Human
  • Musashi-1
  • Stem cell
  • Stomach

ASJC Scopus subject areas

  • Physiology
  • Gastroenterology

Cite this

Murata, H., Tsuji, S., Tsujii, M., Nakamura, T., Fu, H. Y., Eguchi, H., Asahi, K., Okano, H., Kawano, S., & Hayashi, N. (2008). Helicobacter Pylori infection induces candidate stem cell marker musashi-1 in the human gastric epithelium. Digestive Diseases and Sciences, 53(2), 363-369. https://doi.org/10.1007/s10620-007-9858-5