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The mammalian target of rapamycin or mTOR protein was discovered in 1994 due to its direct interaction with rapamycin. The protein gets its name from a yeast homolog called TOR. The mTOR protein complex in mammalian cells plays a major role in balancing anabolic processes such as the synthesis of proteins, lipids, and nucleotides and catabolic processes, such as autophagy in response to environmental cues, such as availability of nutrients and growth factors.
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mTOR Signaling and Cancer Progression03:03

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mTOR: A pathogenic signaling pathway in developmental brain malformations.

Peter B Crino1

  • 1Department of Neurology, PENN Epilepsy Center, University of Pennsylvania, 3 West Gates Bldg, 3400 Spruce St, Philadelphia, PA 19104, USA. peter.crino@uphs.upenn.edu

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Aberrant mTOR signaling in the developing brain causes cortical malformations, epilepsy, and neurobehavioral issues. Targeting mTOR offers future therapeutic potential for these developmental disorders.

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Area of Science:

  • Neuroscience
  • Molecular Biology
  • Genetics

Background:

  • The mechanistic target of rapamycin (mTOR) signaling pathway is crucial for cerebral cortex development.
  • Loss-of-function mutations in mTOR inhibitor genes (TSC1, TSC2, PTEN, STRADα) lead to mTOR hyperactivation.
  • This hyperactivation is associated with developmental cortical malformations, epilepsy, and neurobehavioral disabilities.

Purpose of the Study:

  • To investigate the role of mTOR signaling in developmental brain disorders.
  • To explore the potential of targeting mTOR for therapeutic interventions.
  • To identify avenues for biomarker assessment, patient stratification, and prognostic measures.

Main Methods:

  • The abstract does not specify methods, focusing on the implications of mTOR signaling.
  • This section would typically detail experimental approaches used to study mTOR signaling in relevant models or patient data.

Main Results:

  • Aberrant mTOR hyperactivation due to specific gene mutations is linked to cortical malformations and associated neurological deficits.
  • Understanding mTOR signaling provides a basis for developing targeted therapies.

Conclusions:

  • Investigating mTOR signaling in developmental brain disorders opens new possibilities for clinical applications.
  • Future research is needed to overcome challenges before widespread clinical therapeutics targeting mTOR can be implemented.