Aberrant localization of beta-catenin in leukemia cell lines.
- Author:
Jie SHI
1
;
Lin WANG
;
Li-Hua HU
Author Information
1. Department of Medical Laboratory Examination, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.
- Publication Type:Journal Article
- MeSH:
Burkitt Lymphoma;
metabolism;
pathology;
Cell Line, Tumor;
Hematologic Neoplasms;
pathology;
Humans;
Jurkat Cells;
K562 Cells;
Leukemia, Monocytic, Acute;
pathology;
RNA, Messenger;
biosynthesis;
genetics;
Signal Transduction;
Wnt Proteins;
metabolism;
beta Catenin;
analysis;
biosynthesis;
genetics
- From:
Journal of Experimental Hematology
2006;14(6):1096-1100
- CountryChina
- Language:Chinese
-
Abstract:
Beta-catenin plays a central role in Wnt signaling pathway. The aberrant localization of beta-catenin in nucleus causes the transcription of down-stream target genes, which is the pathogenesy of some solid tumours. As the expression of adheren junction on hemopoietic cells is very low, there are a few studies on beta-catenin expression in leukaemia. This study was aimed to investigate beta-catenin localization and beta-catenin mRNA expression levels in 4 leukemia cell lines so as to explore a new oncogenic mechanism and to find out a new therapeutic target. The beta-catenin localization in leukemia cell lines was detected by immunocytochemistry, the beta-catenin mRNA expression level was assayed by real-time quantitative RT-PCR. The results showed that there was aberrant localization of beta-catenin in Jurkat and Thp-1, and beta-catenin mRNA expression level was not increased in these two cell lines, however, the mRNA expression levels of Jurkat and Thp-1 were lower than those of Daudi and K562. The beta-catenin mRNA expression level was not correlated with beta-catenin aberrant localization in these 4 cell lines. It is concluded that the aberrant localization of beta-catenin may play a role in the development of some leukemia, and the mechanism resulting in beta-catenin aberrant localization not take place at transcription level.
