The dietary isothiocyanate sulforaphane modulates gene expression and alternative gene splicing in a PTEN null preclinical murine model of prostate cancer
2010

How Sulforaphane from Broccoli Affects Prostate Cancer Genes

Sample size: 21 publication 10 minutes Evidence: moderate

Author Information

Author(s): Maria H Traka, Caroline A Spinks, Joanne F Doleman, Antonietta Melchini, Richard Y Ball, Robert D Mills, Richard F Mithen

Primary Institution: Institute of Food Research, Norwich, UK

Hypothesis

Does dietary sulforaphane influence gene expression and splicing in prostate cancer models lacking PTEN?

Conclusion

Sulforaphane can suppress gene expression changes caused by PTEN deletion and induce alternative splicing in prostate cancer models.

Supporting Evidence

  • Sulforaphane suppresses transcriptional changes induced by PTEN deletion.
  • Sulforaphane induces changes in gene expression associated with cell cycle arrest and apoptosis.
  • Similar gene expression changes can be induced in humans with a broccoli-rich diet.
  • Sulforaphane interacts with PTEN deletion to modulate alternative gene splicing.

Takeaway

Eating broccoli might help prevent prostate cancer by changing how certain genes work in the body.

Methodology

The study used a mouse model with PTEN deletion to analyze the effects of sulforaphane on gene expression and splicing.

Potential Biases

Potential bias in the selection of dietary interventions and the specific mouse model used.

Limitations

The study primarily used a mouse model, which may not fully replicate human responses.

Participant Demographics

Men diagnosed with high-grade prostatic intraepithelial neoplasia (HGPIN), mean age 64 years.

Statistical Information

P-Value

p<0.05

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1186/1476-4598-9-189

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