Abstract
We report on the location of 283 miRNAs in the human genome in relation to copy number changes in three distinct types of tumours: prostate, bladder and colon. In prostate and colon tumours, we find miRNAs over-represented in regions with copy number gain and under-represented in regions with copy number loss. Surprisingly this pattern appears to be reversed in bladder cancer. We compared our miRNA copy number data to published miRNA expression data; unexpectedly, we did not find a statistically significant relationship between miRNA copy number and expression level. This suggests that miRNA expression is regulated through different mechanisms than mRNA expression.
Original language | English |
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Journal | British Journal of Cancer |
Volume | 95 |
Issue number | 10 |
Pages (from-to) | 1415-1418 |
Number of pages | 4 |
ISSN | 0007-0920 |
DOIs | |
Publication status | Published - 20 Nov 2006 |
Externally published | Yes |
Keywords
- Affymetrix SNP array
- Bladder
- Colon
- Copy number
- microRNA
- Prostate