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Laser-capture Microdissection of Human Prostatic Epithelium for RNA Analysis
Published on: November 26, 2015
A novel method of obtaining prostate tissue for gene expression profiling
Prasanna Sooriakumaran1, Alastair Henderson, Philippa Denham
1Department of Urology, Royal Surrey County Hospital, Surrey, UK. sooriakumaran@ gmail.com
International Journal of Surgical Pathology
|May 30, 2008
Summary
A new, simple prostate tissue sampling method provides sufficient RNA for DNA microarray analysis in cancer research. This technique ensures accurate histological prediction and supports further prostate cancer studies.
Area of Science:
- Oncology
- Molecular Biology
- Genomics
Background:
- Gene expression profiling using DNA microarray analysis holds significant potential for advancing cancer biology research.
- Prostate cancers often exhibit multifocality and heterogeneity, posing challenges for collecting adequate biological samples for profiling.
- Existing methods like laser capture microdissection have limitations and are not universally accessible.
Purpose of the Study:
- To introduce a novel, practical method for prostatic tissue sampling.
- To ensure the method yields adequate RNA for DNA microarray analysis.
- To validate the method's compatibility with histopathological assessment and its accuracy.
Main Methods:
- Development and description of a novel prostatic sampling technique.
- Assessment of RNA yield for DNA microarray analysis.
- Validation of the method's accuracy using histological prediction (>95% sensitivity, 99% specificity).
Main Results:
- The novel sampling method provides adequate RNA yield for DNA microarray analysis.
- The technique does not compromise the histopathological assessment of surgical specimens.
- The method demonstrated high accuracy in histological prediction of obtained tissue.
Conclusions:
- A simple, inexpensive, and reproducible prostatic sampling method has been developed.
- This method overcomes limitations of current techniques for prostate cancer gene expression profiling.
- The validated technique is suitable for adoption by researchers conducting DNA microarray analysis on prostate tumors.
