High-Resolution Analysis of the 5′-End Transcriptome Using a Next Generation DNA Sequencer
Author Information
Author(s): Hashimoto Shin-ichi, Qu Wei, Ahsan Budrul, Ogoshi Katsumi, Sasaki Atsushi, Nakatani Yoichiro, Lee Yongjun, Ogawa Masako, Ametani Akio, Suzuki Yutaka, Sugano Sumio, Lee Clarence C., Nutter Robert C., Morishita Shinichi, Matsushima Kouji
Primary Institution: The University of Tokyo
Hypothesis
How does the 5′ SOLiD technology improve the analysis of whole genome gene expression compared to traditional methods?
Conclusion
The 5′ SOLiD technology significantly enhances the sensitivity and dynamic range of gene expression profiling in colon cancer cells.
Supporting Evidence
- More than 20 million 25-base 5′-end tags were obtained from untreated and 5Aza-treated cells.
- 73% of the mapped unique tags were associated with RefSeq cDNA sequences.
- The sensitivity of a single sequence run of the SOLiD platform was 100–1,000 fold greater than that observed from 5′end SAGE data.
- 277 genes exhibited significant expression changes between control and 5Aza-treated cells.
Takeaway
This study shows a new way to look at genes in cancer cells, helping scientists see more details about how genes work.
Methodology
The study used 5′ SOLiD technology to analyze gene expression in colon cancer cells treated with a DNA methyltransferase inhibitor.
Limitations
The study focused on a single cell line, which may limit the generalizability of the findings.
Participant Demographics
The study involved HT-29 colon cancer cells.
Statistical Information
P-Value
<0.001
Statistical Significance
p<0.001
Digital Object Identifier (DOI)
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