Journal
BRITISH JOURNAL OF CANCER
Volume 102, Issue 7, Pages 1174-1179Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/sj.bjc.6605608
Keywords
gastric cancer; microRNA; plasma; biomarker
Categories
Funding
- Grants-in-Aid for Scientific Research [22590533] Funding Source: KAKEN
Ask authors/readers for more resources
BACKGROUND: We examined plasma microRNA (miRNA) concentrations from patients with gastric cancers (GCs) to assess their clinical application for diagnosing and monitoring diseases. METHODS: We initially investigated the appropriateness of plasma miRNA assay, and then compared plasma miRNA results with the expressions in cancer tissues from eight GC patients, and also compared plasma miRNAs between pre- and post-operative paired samples from 10 GC patients. Then, plasma miRNAs (miR-17-5p, miR-21, miR-106a, miR-106b and let-7a) were analysed in 69 GC patients and 30 healthy volunteers in total. RESULTS: The initial analysis showed that miRNAs were stable and detectable in all plasma samples, and the plasma miRNA levels reflected the tumour miRNAs in most cases. The levels of these miRNAs were significantly reduced in post-operative samples. In large-scale analysis, the plasma concentrations of miRNAs (miR-17-5p, miR-21, miR-106a, miR-106b) were significantly higher in GC patients than controls (P = 0.05, 0.006, 0.008 and <0.001 respectively), whereas let-7a was lower in GC patients (P = 0.002). The values of the area under the receiver-operating characteristic curve were 0.721 for the miR-106b assay and 0.879 for the miR-106a/let-7a ratio assay. CONCLUSION: Detection of circulating miRNAs might provide new complementary tumour markers for GC. British Journal of Cancer (2010) 102, 1174-1179. doi:10.1038/sj.bjc.6605608 www.bjcancer.com Published online 16 March 2010 (C) 2010 Cancer Research UK
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available