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Focus issue: TOR signaling, a tale of two complexes

Nancy R Gough

    Science Signaling
    |March 30, 2012
    PubMed

    Insights

    The target of rapamycin (TOR) kinase, through TOR complex 1 (TORC1) and TOR complex 2 (TORC2), regulates cell growth and cycles. Understanding TOR signaling is key to addressing aging, cancer, and promoting healthier lives.

    Area of Science:

    • Molecular Biology
    • Cell Biology
    • Biochemistry

    Background:

    • The target of rapamycin (TOR) kinase is a central regulator of cellular processes.
    • TOR functions through two distinct complexes: TOR complex 1 (TORC1) and TOR complex 2 (TORC2).
    • TOR signaling integrates signals from growth factors and nutrients to control cell growth and proliferation.

    Discussion:

    • The TOR signaling network is implicated in diverse physiological and pathophysiological states.
    • Dysregulation of TOR signaling is linked to aging, stem cell renewal, cell specification, and carcinogenesis.
    • Research since 2009 has significantly advanced our understanding of TOR pathway intricacies.

    Key Insights:

    • TORC1 and TORC2 differentially regulate cellular growth and survival.
    • TOR signaling impacts fundamental cellular processes including metabolism, protein synthesis, and autophagy.
    • New therapeutic strategies targeting TOR are emerging for age-related diseases and cancer.

    Outlook:

    • Further elucidation of TOR signaling networks will reveal novel therapeutic targets.
    • Modulating TOR activity holds promise for extending healthspan and treating diseases.
    • Continued research is essential to fully harness the therapeutic potential of TOR pathways.

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