Body building: Regulation of shape and size by PI3K/TOR signaling during development

Research output: Contribution to journalReview articlepeer-review

45 Scopus citations


Growth of organisms and their constituent parts responds to both intrinsic and extrinsic cues during development: organisms of a given species generally grow at a predictable rate and to a specific body size, but individuals can modify this program during development in response to environmental conditions. Recent experiments, using gene knockouts and targeted overexpression, have revealed the central role of a signaling network controlled by the PI3K and TOR kinases in this regulation. These signaling molecules control growth by coordinately regulating a large number of cell biological processes. This review focuses on the cellular activities regulated by PI3K and TOR during development, and discusses how changes in different aspects of cellular metabolism may interact to regulate growth.

Original languageEnglish (US)
Pages (from-to)1283-1296
Number of pages14
JournalMechanisms of Development
Issue number11
StatePublished - Nov 2003


  • Autophagy
  • Cell growth
  • Drosophila
  • Morphogenesis
  • Phosphatidylinositol 3-kinase
  • Spindle orientation
  • Target of rapamycin

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