Manumycin inhibits ras signal transduction pathway and induces apoptosis in COLO320-DM human colon tumourcells
2000

Manumycin and Its Effects on Colon Cancer Cells

publication Evidence: moderate

Author Information

Author(s): Paolo A Di, Danesi R, Nardini D, Bocci G, Innocenti F, Fogli S, Barachini S, Marchetti A, Bevilacqua G, Tacca M Del

Primary Institution: University of Pisa

Hypothesis

The study aims to assess the cytotoxicity of manumycin and its effects on protein isoprenylation and kinase-dependent signal transduction in colon adenocarcinoma cells.

Conclusion

Manumycin inhibits cell growth and induces apoptosis in colon cancer cells by affecting the p21 ras processing and signal transduction.

Supporting Evidence

  • Manumycin reduced p21 ras farnesylation in a dose-dependent manner.
  • Manumycin inhibited the phosphorylation of p42MAPK/ERK2, a key effector of p21 ras.
  • Manumycin induced apoptosis in COLO320-DM cells without affecting cholesterol biosynthesis.

Takeaway

Manumycin is a drug that can help kill colon cancer cells by stopping a specific protein from working, even if the cancer cells have a normal version of that protein.

Methodology

The study used immunoblot analysis to assess the effects of manumycin on cell membranes and lysates of COLO320-DM cells.

Digital Object Identifier (DOI)

10.1054/bjoc.1999.1018

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