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Published in: Medical Oncology 1/2014

01-01-2014 | Original Paper

Reduced expression of Slit2 in renal cell carcinoma

Authors: Wei-Jie Ma, Yu Zhou, Dan Lu, Dong Dong, Xiao-Jun Tian, Jie-xi Wen, Jun Zhang

Published in: Medical Oncology | Issue 1/2014

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Abstract

Slit2, initially identified as an important axon guidance molecule in the nervous system, was suggested to be involved in multiple cellular processes. Recently, Slit2 was reported to function as a potential tumor suppressor in diverse tumors. In this study, we systematically analyzed the expression level of Slit2 in renal cell carcinoma. Compared to paired adjacent non-malignant tissues, both Slit2 mRNA and protein expression were significantly down-regulated in renal cell carcinoma (RCC). Methylation-specific PCR showed that Slit2 promoter was methylated in two renal carcinoma cell lines. Pharmacologic demethylation dramatically induced Slit2 expression in cancer cell lines with weak expression of Slit2. Besides, bisulfite genomic sequencing confirmed that dense methylation existed in Slit2 promoter. Furthermore, in paired RCC samples, Slit2 methylation was observed in 8 out of 38 patients (21.1 %), which was well correlated with the down-regulation of Slit2 in RCC. Therefore, Slit2 may also be a potential tumor suppressor in RCC, which is down-regulated in RCC partially due to promoter methylation.
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Metadata
Title
Reduced expression of Slit2 in renal cell carcinoma
Authors
Wei-Jie Ma
Yu Zhou
Dan Lu
Dong Dong
Xiao-Jun Tian
Jie-xi Wen
Jun Zhang
Publication date
01-01-2014
Publisher
Springer US
Published in
Medical Oncology / Issue 1/2014
Print ISSN: 1357-0560
Electronic ISSN: 1559-131X
DOI
https://doi.org/10.1007/s12032-013-0768-4

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