Journal of Life Science (생명과학회지)

Korean Society of Life Science (한국생명과학회)
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Analysis of Expression Patterns of Thymosin β4 and CD133 in Normal Stomach

정상 위 조직에서 thymosin β4와 CD133의 발현 양상 분석

  • Ock, Mee Sun (Department of Parasitology and Gnenetics, Kosin University College of Medicine) ;
  • Cha, Hee-Jae (Department of Parasitology and Gnenetics, Kosin University College of Medicine)
  • 옥미선 (고신대학교 의과대학 기생충학 유전학 교실) ;
  • 차희재 (고신대학교 의과대학 기생충학 유전학 교실)
  • Received : 2012.09.18
  • Accepted : 2012.10.05
  • Published : 2012.10.30
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Abstract

Thymosin ${\beta}4$ ($T{\beta}4$) has been reported to be overexpressed in CD133-positive colorectal cancer stem cells. We analyzed the relationship between $T{\beta}4$ and CD133-positive stem cells in normal stomach by examining the expression patterns of $T{\beta}4$ and CD133 in normal stomach tissues by immunohistochemical staining; co-localization of $T{\beta}4$ and CD133 was studied by immunofluorescence and confocal laser-scanning microscopy. Both $T{\beta}4$ and CD133 were expressed in stomach glands and showed similar expression patterns. Immunofluorescence staining of $T{\beta}4$ and CD133 showed that the expression of $T{\beta}4$ and CD133 was co-localized. In summary, both $T{\beta}4$ and CD133 were expressed in glands of normal stomachs and expression patterns were co-localized. These data suggest that $T{\beta}4$ expression is strongly related to CD133 expression.

Thymosin ${\beta}4$ 는 대장암에서 암 줄기세포 마커인 CD133을 지닌 세포에서 지니지 않은 세포에 비해 강하게 발현된다고 보고되어 있다. 본 연구에서는 thymosin ${\beta}4$와 줄기세포 마커인 CD133의 상관관계를 정상 위 조직에서 관찰하였다. Thymosin ${\beta}4$와 CD133의 발현 양상은 tissue microarray 조직상에서 면역화학적 방법으로 관찰하였으며 thymosin ${\beta}4$와 CD133의 존재 위치는 면역형광 염색법 및 confocal microscope를 사용하여 조사하였다. Thymosin ${\beta}4$와 CD133은 동일한 양상으로 발현되었으며 모두 위의 선조직에서 강하게 발현되었다. 면역 형광 염색법으로 두가지 단백질을 동시에 염색한 결과 두 단백질이 동일한 위치에서 함께 존재하는 것으로 규명되었다. 이러한 결과는 thymosin ${\beta}4$와 CD133은 정상위의 선조직에서 발현되며 두 단백질의 발현 양상 및 위치가 동일하여 서로 긴밀한 상호작용을 할 가능성을 제시하고 있다.

Keywords

References

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