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Correlation of SATB1 overexpression with the progression of human rectal cancer
Sichuan University.
Sichuan University.
Sichuan University.
Sichuan University.
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2012 (English)In: International Journal of Colorectal Disease, ISSN 0179-1958, E-ISSN 1432-1262, Vol. 27, no 2, 143-150 p.Article in journal (Refereed) Published
Abstract [en]

To date, the association between special AT-rich sequence-binding protein 1 (SATB1) and colorectal cancer (CRC) has not been reported. This study was aimed at investigating the expression and potential role of SATB1 in human rectal cancers. less thanbrgreater than less thanbrgreater thanNinety-three paired samples of rectal cancer and distant normal rectal tissue were analyzed by quantitative real-time PCR (qRT-PCR) and immunohistochemistry (IHC), and the correlations between SATB1 expression and clinicopathological parameters were evaluated. The expression profiles of SATB1 were also investigated in a panel of five human colon carcinoma cell lines. less thanbrgreater than less thanbrgreater thanThe general level of SATB1 mRNA in rectal cancer tissues was statistically significantly higher than that in normal mucosa (P = 0.043). The rate of positive SATB1 protein expression in rectal cancers (44.1%) was significantly higher than that in normal tissues (25.8%) by IHC analysis (P = 0.009). Overexpression of SATB1 mRNA was more predominant in patients with earlier onset of rectal cancer (P = 0.033). SATB1 expression correlated with invasive depth and tumor node metastasis (TNM) stage at both protein and mRNA levels (P andlt; 0.05). Furthermore, SATB1 expression in the poorly metastatic KM12C cells was significantly lower than the highly metastatic KM12SM and KM12L4A cells and higher than the HCT116 and SW480 cells (P = 0.001). These results were further confirmed by Western blotting. less thanbrgreater than less thanbrgreater thanOur results indicate that SATB1 may play an important role in the progression of human rectal cancer, which represents a possible new mechanism underlying CRC.

Place, publisher, year, edition, pages
Springer Verlag (Germany) , 2012. Vol. 27, no 2, 143-150 p.
Keyword [en]
Special AT-rich sequence-binding protein 1, Human rectal cancer, Quantitative real-time PCR, Immunohistochemistry, KM12C cell lines
National Category
Medical and Health Sciences
URN: urn:nbn:se:liu:diva-75469DOI: 10.1007/s00384-011-1302-9ISI: 000299927400002OAI: diva2:507083
Funding Agencies|National Natural Science Foundation of China|30830100|Ph.D. Programs Foundation of the Ministry of Education of China|20080610058|Available from: 2012-03-02 Created: 2012-03-02 Last updated: 2012-04-03

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Sun, Xiao-Feng
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OncologyFaculty of Health SciencesDepartment of Oncology UHL
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