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RNA purification and quantification methods
1Imperial Cancer Research Fund, Molecular Angiogenesis Laboratory, University of Oxford, Institute of Molecular Medicine, John Radcliffe Hospital, Oxford, UK.
Methods in Molecular Medicine
|February 23, 2011
Summary
This study details messenger RNA (mRNA) purification and quantification using ribonuclease protection assays for gene expression analysis in tumors. Strict protocols prevent ribonuclease contamination, ensuring accurate results for cancer research.
Area of Science:
- Molecular Biology
- Cancer Research
- Biochemistry
Background:
- Gene expression analysis in tumors often relies on messenger RNA (mRNA) quantification.
- Ribonuclease protection assays are a key technique for this analysis.
- Contamination by ribonucleases can compromise experimental integrity.
Purpose of the Study:
- To describe the purification of mRNA from tissues or cell cultures.
- To detail the quantification of mRNA using ribonuclease protection assays.
- To outline methods for preventing ribonuclease contamination.
Main Methods:
- mRNA purification from biological samples.
- Generation of radioactive antisense messenger RNA probes.
- Hybridization, ribonuclease digestion, gel electrophoresis, and autoradiography for quantification.
- Strict protocols for preventing ribonuclease contamination, including use of gloves, specific plasticware/glassware preparation, and diethylpyrocarbonate (DEPC)-treated water.
Main Results:
- Successful purification and quantification of mRNA are achievable.
- The ribonuclease protection assay allows for sensitive detection of specific mRNA transcripts.
- Implementation of contamination prevention measures is critical for assay success.
Conclusions:
- The described methods provide a robust approach for mRNA analysis in cancer research.
- Careful attention to ribonuclease-free techniques is essential for reliable gene expression profiling.
- This methodology aids in understanding tumor biology through gene expression studies.
