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Targets for indole-3-carbinol in cancer prevention

Young S Kim1, J A Milner

  • 1Nutritional Science Research Group, Division of Cancer Prevention, National Cancer Institute, Bethesda, MD 20892, USA. yk47s@nih.gov

The Journal of Nutritional Biochemistry
|February 1, 2005
PubMed

Insights

Indole-3-carbinol (I3C) from cruciferous vegetables shows anticancer effects by modifying nuclear transcription factors. Further research is needed to understand these mechanisms and their relation to exposure levels.

Area of Science:

  • Nutritional biochemistry
  • Molecular oncology
  • Cancer prevention

Background:

  • Indole-3-carbinol (I3C), found in cruciferous vegetables, possesses significant anticarcinogenic and antitumorigenic properties.
  • Existing evidence identifies p21, p27, cyclin-dependent kinases, retinoblastoma, Bax/Bcl-2, cytochrome P-450 1A1, and GADD153 as molecular targets of I3C.

Purpose of the Study:

  • To explore the role of nuclear transcription factor modification as a common mechanism underlying I3C's downstream cellular effects.
  • To investigate how I3C influences key transcription factors such as Sp1, estrogen receptor, nuclear factor kappaB, and aryl hydrocarbon receptor.

Main Methods:

  • Review of preclinical and clinical evidence on indole-3-carbinol (I3C).
  • Analysis of molecular targets and downstream cellular responses associated with I3C.
  • Identification of nuclear transcription factors modulated by I3C.

Main Results:

  • Modification of nuclear transcription factors (Sp1, estrogen receptor, NF-κB, AhR) is proposed as a central mechanism for I3C's anticancer activity.
  • These modifications help explain downstream cellular responses to dietary I3C.

Conclusions:

  • Dietary indole-3-carbinol (I3C) exhibits anticancer properties through the modulation of critical nuclear transcription factors.
  • Future research should elucidate the precise reasons for these transcription factor changes and their correlation with phenotypic outcomes and exposure dynamics.

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