Ras-induced cellular events (review)

Area of Science:

• Molecular Biology
• Cell Biology
• Cancer Biology

Background:

• Ras proteins are critical regulators of eukaryotic cell growth, influencing proliferation, differentiation, and apoptosis.
• Mutations in Ras genes are common in various cancers, leading to aberrant signaling pathways.
• Ras function requires plasma membrane localization, facilitated by post-translational farnesylation.

Purpose of the Study:

• To explore the multifaceted roles of Ras in cell growth regulation.
• To investigate the significance of Ras signaling in oncogenesis.
• To highlight the therapeutic potential of targeting Ras modification.

Main Methods:

• Analysis of Ras signaling pathways in eukaryotic cells.
• Investigation of Ras mutations in solid tumors and hematologic neoplasias.
• Examination of farnesylation as a key post-translational modification for Ras function.

Main Results:

• Activated Ras stimulates signal transduction cascades controlling cell fate.
• Aberrant Ras signaling in cancer can arise from direct mutation or indirect pathway alterations.
• Inhibition of Ras farnesylation has been explored as an anti-cancer approach.

Conclusions:

• Ras acts as a dual regulator of cell functions, impacting both proliferation and apoptosis.
• The diverse effects of Ras may stem from different Ras homologues or effectors.
• Targeting Ras modification presents a promising avenue for anti-tumor therapies.