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Updated: Jul 14, 2026
08:49
Murine Prostate Micro-dissection and Surgical Castration
Published on: May 11, 2016
Genetic background influences murine prostate gene expression: implications for cancer phenotypes
Daniella Bianchi-Frias1, Colin Pritchard, Brigham H Mecham
1Division of Human Biology, Fred Hutchinson Cancer Research Center, Fairview Avenue, Seattle, WA 98109-1024, USA.
Genome Biology
|June 20, 2007
Summary
Mouse prostate gene expression varies significantly across different strains, impacting cancer development. Understanding this genetic background is crucial for prostate cancer research and prevention strategies.
Area of Science:
- Genomics
- Prostate Cancer Research
- Comparative Transcriptomics
Background:
- Prostate cancer arises from genetic and environmental factors.
- Mouse models are vital for studying genetic influences on cancer.
- Normal prostatic phenotypic variability in mice remains underexplored.
Purpose of the Study:
- To establish the normal prostatic phenotypic variability across different inbred mouse strains.
- To identify genes with differential expression in the mouse prostate.
- To explore the correlation between murine prostate gene expression and human prostate cancer.
Main Methods:
- Microarray analysis to quantify transcript levels in prostates of five inbred mouse strains.
- Multiclass response t-test to identify differentially expressed genes.
- Quantitative RT-PCR and immunohistochemistry for validation.
- Analysis of human prostate transcripts orthologous to variable murine genes.
Main Results:
- Approximately 13% of genes (932) showed differential expression across mouse strains.
- Expression differences were validated for known cancer-related genes (Psca, Mmp7, Clusterin).
- Human prostate gene expression in benign epithelium correlated with adjacent tumor grade, with Apolipoprotein D as an example.
Conclusions:
- Cellular, tissue, and organismal context significantly influence oncogenesis.
- A predisposition to pathological events may exist before cancer initiation.
- Genetic background plays a critical role in prostate cancer susceptibility.
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