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The Interplay between ROS and Ras GTPases: Physiological and Pathological Implications

Elisa Ferro1, Luca Goitre, Saverio Francesco Retta

  • 1Department of Biotechnology, University of Siena, Via Fiorentina 1, 53100 Siena, Italy.

Journal of Signal Transduction
|December 17, 2011
PubMed

Insights

Redox agents, including reactive oxygen and nitrogen species, regulate Ras GTPases, which are key to cell signaling. This interplay influences cellular processes and disease.

Area of Science:

  • Cellular Biology
  • Biochemistry
  • Signaling Networks

Background:

  • Ras GTPases are crucial for fundamental cellular processes, regulated by their guanine nucleotide-bound state.
  • Reactive oxygen species (ROS) and reactive nitrogen species (RNS) are increasingly recognized as signaling molecules, not just pathological agents.
  • Evidence suggests a complex interplay where Ras GTPases influence ROS production and oxidants act as effectors.

Purpose of the Study:

  • To review the current understanding of the mechanisms governing the interaction between GTPases and redox agents.
  • To discuss the physiopathological implications of this GTPase-redox signaling axis.

Main Methods:

  • Literature review and synthesis of existing research findings.
  • Discussion of proposed regulatory mechanisms and signaling pathways.

Main Results:

  • Redox agents can act as both upstream regulators and downstream effectors of Ras GTPases.
  • The interaction between GTPases and redox agents plays a role in various cell signaling pathways.
  • This interplay has significant implications for cellular function and disease pathogenesis.

Conclusions:

  • The bidirectional communication between Ras GTPases and redox agents is a critical aspect of cellular regulation.
  • Further research is needed to fully elucidate the complex mechanisms and therapeutic potential of targeting this signaling axis.

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