Caudal homeodomain 단백질은 초파리에서 사람에 이르기까지 보존되어 있으며, 장조직의 발생과 유지에 필수적인 역할을 한다. CDX1과 CDX2의 발현 감소 혹은 소실이 대장암과 연관되어 있음이 잘 ...
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https://www.riss.kr/link?id=A82535271
2011
English
KCI등재
학술저널
194-201(8쪽)
0
0
상세조회0
다운로드국문 초록 (Abstract)
Caudal homeodomain 단백질은 초파리에서 사람에 이르기까지 보존되어 있으며, 장조직의 발생과 유지에 필수적인 역할을 한다. CDX1과 CDX2의 발현 감소 혹은 소실이 대장암과 연관되어 있음이 잘 ...
Caudal homeodomain 단백질은 초파리에서 사람에 이르기까지 보존되어 있으며, 장조직의 발생과 유지에 필수적인 역할을 한다. CDX1과 CDX2의 발현 감소 혹은 소실이 대장암과 연관되어 있음이 잘 알려져 있다. 대장암발생은 산화성 스트레스와 밀접한 관련이 있으며, 대장암 조직에서 항산화효소인 catalase의 발현이 감소되어 있다. 하지만 그 분자적 기전은 잘 밝혀져 있지 않다. 본 연구에서는 초파리와 사람의 caudal homeodomain 단백질들이 catalase의 발현을 조절하는 것을 보여준다. 초파리 caudal heterozygous 돌연변이체의 대장조직에서 catalase의 발현이 감소되어 있고 ROS 생성이 증가되어 있음을 관찰하였다. 그리고 caudal 유전자의 과발현에 의해 catalase promoter의 활성과 mRNA 수준이 각각 증가함을 확인하였다. 또한 사람의 대장암 세포주인 HCT116세포에서 CDX1과 CDX2가 catalase promoter의 활성과 단백질 수준에서 catalase를 상향 조절함을 관찰하였다. 이러한 결과들은 CDX1과 CDX2가 catalase 발현 조절을 통하여 장의 항상성 유지와 암발생 과정에 관여함을 시사한다.
다국어 초록 (Multilingual Abstract)
Caudal-related homeodomain proteins play critical roles in intestine development and maintenance from Drosophila to humans. The loss or reduction of CDX1 and CDX2 are known to be associated with colon cancers. It has been well known that colorectal ca...
Caudal-related homeodomain proteins play critical roles in intestine development and maintenance from Drosophila to humans. The loss or reduction of CDX1 and CDX2 are known to be associated with colon cancers. It has been well known that colorectal carcinogenesis is associated with serious oxidative stress and that catalase is decreased in colon carcinomas. However, the underlying molecular mechanisms remain elusive. Here, we report that Caudal-related homeodomain proteins positively regulate catalase expression in both Drosophila and humans. We found that Drosophila caudal heterozygotes have a decreased catalase expression and increased ROS generation in the hindgut, and that the overexpression of Caudal increases catalase promoter activity and catalase mRNA levels. We also found that CDX1 and CDX2 up-regulate catalase promoter activity and protein levels in HCT116 cells - human colorectal carcinoma cell lines. The level of catalase protein in several colorectal carcinoma cell lines was associated with CDX1 expression. These results suggest that CDX1 and CDX2 may be involved in intestinal homeostasis and tumorigenesis via regulation of catalase expression.
목차 (Table of Contents)
참고문헌 (Reference)
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6 Hwang, M. S., "The caudal homeodomain protein activates Drosophila E2F gene expression" 30 : 5029-5035, 2002
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마우스 악성흑색종세포에서 울릉도 곰취, 미역취, 삼나물 추출물의 멜라닌 생성 억제 효과
Effect of Deep Seawater on Expression of μ-Opioid Receptor in Cultured Rat Hippocampal Neurons
저산소증 상태에서 B16F10 피부암 세포에 EGCG를 처리하였을 때의 apoptosis 효과
학술지 이력
연월일 | 이력구분 | 이력상세 | 등재구분 |
---|---|---|---|
2027 | 평가예정 | 재인증평가 신청대상 (재인증) | |
2021-01-01 | 평가 | 등재학술지 유지 (재인증) | |
2018-01-01 | 평가 | 등재학술지 유지 (등재유지) | |
2015-01-01 | 평가 | 등재학술지 유지 (등재유지) | |
2011-08-03 | 학술지명변경 | 외국어명 : Korean Journal of Life Science -> Journal of Life Science | |
2011-01-01 | 평가 | 등재학술지 유지 (등재유지) | |
2009-01-01 | 평가 | 등재학술지 유지 (등재유지) | |
2007-01-01 | 평가 | 등재학술지 유지 (등재유지) | |
2004-01-01 | 평가 | 등재학술지 선정 (등재후보2차) | |
2003-01-01 | 평가 | 등재후보 1차 PASS (등재후보1차) | |
2001-07-01 | 평가 | 등재후보학술지 선정 (신규평가) |
학술지 인용정보
기준연도 | WOS-KCI 통합IF(2년) | KCIF(2년) | KCIF(3년) |
---|---|---|---|
2016 | 0.37 | 0.37 | 0.42 |
KCIF(4년) | KCIF(5년) | 중심성지수(3년) | 즉시성지수 |
0.43 | 0.43 | 0.774 | 0.09 |