Coordinate regulation of translation by the PI 3-kinase and mTOR pathways. Review uri icon

Overview

abstract

  • Control of translation initiation is an important means by which cells tightly regulate the critical processes of growth and proliferation. Multiple effector proteins contribute to translation initiation of specially modified mRNAs that modulate these processes. Coordinated regulation of these translational effectors by multiple signaling pathways allows the integration of information regarding mitogenic signals, energy levels, and nutrient sufficiency. The mTOR protein, in particular, serves as a sensor of all of these signals and is thought to thus serve as a crucial checkpoint control protein. Signals from the mTOR pathway converge with mitogenic inputs from the phosphoinositide (PI) 3-kinase pathway on translational effector proteins to coordinately control cellular growth, size, and cell proliferation. The translational effectors regulated by the PI 3-kinase and mTOR pathways and their roles in regulation of cellular growth will be the primary focus of this review.

publication date

  • January 1, 2002

Research

keywords

  • Gene Expression Regulation
  • Phosphatidylinositol 3-Kinases
  • Protein Biosynthesis
  • Protein Kinases
  • Signal Transduction

Identity

Scopus Document Identifier

  • 0036385637

Digital Object Identifier (DOI)

  • 10.1016/s0065-230x(02)86001-8

PubMed ID

  • 12374276

Additional Document Info

volume

  • 86