Related Experiment Video
Updated: May 11, 2026

Optogenetic Signaling Activation in Zebrafish Embryos
Published on: October 27, 2023
Evolutionarily conserved regulation of TOR signalling
Terunao Takahara1, Tatsuya Maeda
1Institute of Molecular and Cellular Biosciences, The University of Tokyo, Japan.
Abstract:
The target of rapamycin (TOR) is an evolutionarily conserved protein kinase that regulates cell growth in response to various environmental as well as intracellular cues through the formation of 2 distinct TOR complexes (TORC), TORC1 and TORC2. Dysregulation of TORC1 and TORC2 activity is closely associated with various diseases, including diabetes, cancer and neurodegenerative disorders. Over the past few years, new regulatory mechanisms of TORC1 and TORC2 activity have been elucidated. Furthermore, recent advances in the study of TOR inhibitors have revealed previously unrecognized cellular functions of TORC1. In this review, we briefly summarize the current understanding of the evolutionarily conserved TOR signalling from upstream regulators to downstream events.
Insights
The target of rapamycin (TOR) pathway regulates cell growth and its dysregulation is linked to diseases like cancer. Recent research has uncovered new regulatory mechanisms and cellular functions of TOR complexes.
Area of Science:
- Molecular Biology
- Cell Biology
- Biochemistry
Background:
- The target of rapamycin (TOR) is a conserved protein kinase crucial for cell growth regulation.
- TOR functions through two distinct complexes, TORC1 and TORC2.
- Dysregulated TORC1 and TORC2 activity is implicated in diseases such as cancer, diabetes, and neurodegenerative disorders.
Purpose of the Study:
- To review the current understanding of TOR signaling pathways.
- To highlight recent discoveries in TORC1 and TORC2 regulation.
- To discuss the implications of TOR pathway dysregulation in disease.
Main Methods:
- Literature review of recent studies on TOR signaling.
- Analysis of upstream regulators and downstream effectors of TOR.
- Examination of TOR inhibitors and their cellular functions.
Main Results:
- Elucidation of novel regulatory mechanisms for TORC1 and TORC2.
- Identification of previously unrecognized cellular functions of TORC1.
- Summary of the conserved TOR signaling cascade from upstream to downstream.
Conclusions:
- TOR signaling is a fundamental process in cell growth control.
- Understanding TOR regulation is vital for developing therapies for TOR-associated diseases.
- Continued research into TOR pathways promises new therapeutic strategies.
More Related Videos
Related Concept Videos
mTOR Signaling and Cancer Progression
The mTOR pathway or the...
mTOR Signaling and Cancer Progression
The mTOR pathway or the...
PI3K/mTOR/AKT Signaling Pathway
Regulation of Expression at Multiple Steps
Notch Signaling Pathway
The Notch gene came into the limelight in 1914 after the discovery that its mutation in Drosophila melanogaster leads to a serrated (or "notched") wing margin phenotype. It was not until 1985...
Notch Signaling Pathway
The Notch gene came into the limelight in 1914 after the discovery that its mutation in Drosophila melanogaster leads to a serrated (or "notched") wing margin phenotype. It was not until 1985...

