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Targeting nrf2-mediated gene transcription by triterpenoids and their derivatives

Agnieszka Loboda1, Ewa Rojczyk-Golebiewska, Barbara Bednarczyk-Cwynar

  • 1Department of Medical Biotechnology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Kraków, Poland.

Biomolecules & Therapeutics
|September 7, 2013
PubMed

Insights

Plant-derived triterpenoids offer chemoprevention by regulating transcription factors like Nrf2, boosting antioxidant enzymes. Synthetic analogs show promise for cancer prevention and therapy.

Area of Science:

  • Natural Products Chemistry
  • Molecular Biology
  • Cancer Research

Background:

  • Chemoprevention strategies aim to protect against carcinogens.
  • Plant-derived triterpenoids, such as oleanolic acid, exhibit cytoprotective properties.
  • Transcription factors play a key role in cellular defense mechanisms.

Purpose of the Study:

  • To investigate the chemopreventive potential of plant-derived triterpenoids.
  • To explore the role of transcription factors, including Nrf2 and NF-κB, in mediating these effects.
  • To evaluate synthetic triterpenoid analogs for enhanced biological activity.

Main Methods:

  • Analysis of triterpenoid mechanisms involving transcription factor regulation (Nrf2, NF-κB).
  • Assessment of phase 2 detoxifying and antioxidant enzyme induction (NQO1, HO-1).
  • Utilizing bioinformatics and computational chemistry for synthetic analog design.
  • In vitro and in vivo experimental validation.

Main Results:

  • Triterpenoids activate the Nrf2 pathway, inducing protective enzymes like NQO1 and HO-1.
  • Inhibition of NF-κB by triterpenoids reduces pro-inflammatory gene expression.
  • Synthetic triterpenoid derivatives demonstrate improved biological properties.
  • Modulation of microRNA activity may contribute to triterpenoid efficacy.

Conclusions:

  • Plant-derived triterpenoids possess significant chemopreventive potential through Nrf2 activation and NF-κB inhibition.
  • Synthetic triterpenoids offer enhanced therapeutic prospects.
  • These compounds represent promising candidates for chemoprevention and chemotherapeutic strategies.
Keywords:
Anti-oxidant responseBetulinChemopreventionOleanolic acidTriterpenoids

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