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Farnesyl: proteintransferase inhibitors as agents to inhibit tumor growth

C A Omer1, N J Anthony, C A Buser-Doepner

  • 1Department of Cancer Research, Merck Research Laboratories, West Point, PA 19486, USA.

Biofactors (Oxford, England)
|January 1, 1997
PubMed

Insights

Farnesyltransferase inhibitors (FTIs) are being studied for their potential to block Ras protein function, a key driver in over 30% of human cancers. These inhibitors target the farnesylation process essential for Ras membrane localization and activity.

Area of Science:

  • Oncology
  • Molecular Biology
  • Biochemistry

Background:

  • Ras proteins are crucial signal transducers mediating cell proliferation.
  • Mutational activation of Ras occurs in over 30% of human tumors.
  • Ras function requires post-translational lipid modification, specifically farnesylation, for plasma membrane localization.

Purpose of the Study:

  • To investigate the biological and biochemical effects of farnesyltransferase inhibitors (FTIs).
  • To evaluate the potential of FTIs in inhibiting tumor growth by targeting Ras.
  • To review current research efforts, including our own, on FTI efficacy.

Main Methods:

  • Testing the biological effects of FTIs in preclinical models.
  • Assessing the biochemical impact of FTIs on protein modification.
  • Reviewing and synthesizing data from multiple research groups studying FTIs.

Main Results:

  • Farnesylation is an essential first step in Ras post-translational modification.
  • Farnesyltransferase (FPTase) is the enzyme catalyzing this critical modification.
  • FTIs are under investigation for their ability to disrupt Ras function and inhibit tumor growth.

Conclusions:

  • Targeting Ras farnesylation with FTIs presents a potential therapeutic strategy for cancers with activated Ras.
  • Further research and clinical testing are necessary to establish the efficacy of FTIs in cancer treatment.
  • Understanding the biological and biochemical effects of FTIs is key to their development as anti-cancer drugs.

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