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Sökning: id:"swepub:oai:lup.lub.lu.se:862d1195-4ce2-4a51-8fca-b72ff4685764" > The Rectal Cancer m...

The Rectal Cancer microRNAome - microRNA Expression in Rectal Cancer and Matched Normal Mucosa.

Gaedcke, Jochen (författare)
Grade, Marian (författare)
Camps, Jordi (författare)
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Sökilde, Rolf (författare)
Lund University,Lunds universitet,Bröstcancer-genetik,Sektion I,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Breastcancer-genetics,Section I,Department of Clinical Sciences, Lund,Faculty of Medicine
Kaczkowski, Bogumil (författare)
Schetter, Aaron J (författare)
Difilippantonio, Michael J (författare)
Harris, Curtis C (författare)
Ghadimi, B Michael (författare)
Møller, Søren (författare)
Beissbarth, Tim (författare)
Ried, Thomas (författare)
Litman, Thomas (författare)
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 (creator_code:org_t)
2012
2012
Engelska.
Ingår i: Clinical Cancer Research. - 1078-0432. ; 18:18, s. 4919-4930
Relaterad länk:
http://www.ncbi.nlm....
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http://dx.doi.org/10...
https://lup.lub.lu.s...
https://doi.org/10.1...
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  • Tidskriftsartikel (refereegranskat)
Abstract Ämnesord
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  • PURPOSE: miRNAs play a prominent role in a variety of physiologic and pathologic biologic processes, including cancer. For rectal cancers, only limited data are available on miRNA expression profiles, whereas the underlying genomic and transcriptomic aberrations have been firmly established. We therefore, aimed to comprehensively map the miRNA expression patterns of this disease. EXPERIMENTAL DESIGN: Tumor biopsies and corresponding matched mucosa samples were prospectively collected from 57 patients with locally advanced rectal cancers. Total RNA was extracted, and tumor and mucosa miRNA expression profiles were subsequently established for all patients. The expression of selected miRNAs was validated using semi-quantitative real-time PCR. RESULTS: Forty-nine miRNAs were significantly differentially expressed (log(2)-fold difference >0.5 and P < 0.001) between rectal cancer and normal rectal mucosa. The predicted targets for these miRNAs were enriched for the following pathways: Wnt, TGF-beta, mTOR, insulin, mitogen-activated protein kinase, and ErbB signaling. Thirteen of these 49 miRNAs seem to be rectal cancer-specific, and have not been previously reported for colon cancers: miR-492, miR-542-5p, miR-584, miR-483-5p, miR-144, miR-2110, miR-652, miR-375, miR-147b, miR-148a, miR-190, miR-26a/b, and miR-338-3p. Of clinical impact, miR-135b expression correlated significantly with disease-free and cancer-specific survival in an independent multicenter cohort of 116 patients. CONCLUSION: This comprehensive analysis of the rectal cancer miRNAome uncovered novel miRNAs and pathways associated with rectal cancer. This information contributes to a detailed view of this disease. Moreover, the identification and validation of miR-135b may help to identify novel molecular targets and pathways for therapeutic exploitation. Clin Cancer Res; 1-12. ©2012 AACR.

Ämnesord

MEDICIN OCH HÄLSOVETENSKAP  -- Klinisk medicin -- Cancer och onkologi (hsv//swe)
MEDICAL AND HEALTH SCIENCES  -- Clinical Medicine -- Cancer and Oncology (hsv//eng)

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