Proteomic Analysis Shows Synthetic Oleanane Triterpenoid Binds to mTOR
2011

Synthetic Triterpenoid Binds to mTOR Molecular Targets

publication 10 minutes Evidence: moderate

Author Information

Author(s): Yore Mark M., Kettenbach Arminja N., Sporn Michael B., Gerber Scott A., Liby Karen T.

Primary Institution: Dartmouth Medical School

Hypothesis

The study aims to characterize the target profile of the synthetic oleanane triterpenoid CDDO-Imidazolide (CDDO-Im) and its interaction with mTOR.

Conclusion

The study confirms that CDDO-Im directly targets mTOR and inhibits its kinase activity, affecting various signaling pathways.

Supporting Evidence

  • The study identified 577 candidate binding proteins for CDDO-Im.
  • CDDO-Im was shown to block insulin-induced activation of the mTOR pathway.
  • The proteomic analysis revealed interconnected signaling networks targeted by CDDO-Im.

Takeaway

Researchers found that a new drug called CDDO-Im can stick to a protein called mTOR and stop it from working, which might help treat diseases.

Methodology

The study used affinity purification combined with mass spectrometry to identify protein binding partners of CDDO-Im in cell culture.

Potential Biases

The presence of highly abundant low-affinity proteins may complicate the identification of direct targets.

Limitations

The qualitative nature of the proteomics approach may not provide quantitative information about the SO-target interactions.

Statistical Information

P-Value

p<0.05

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1371/journal.pone.0022862

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