The role of mTOR inhibition in augmenting radiation induced autophagy

Jerry J. Jaboin, Eric T. Shinohara, Luigi Moretti, Eddy S. Yang, Joseph Michael Kaminski, Bo Lu

Research output: Contribution to journalArticle

29 Citations (Scopus)

Abstract

Radiation affects both tumor and normal tissues, limiting the total delivered radiation dose. Therefore, novel ways to exploit molecular targets and improve the therapeutic ratio are continually being investigated. Autophagy plays an important role in cancer cell death decisions, particularly in solid tumors. This is counterbalanced by its function in cellular energy preservation. Recent studies have attempted to exploit autophagy in order to improve therapeutic ratio. However, direct inhibition of autophagy has been demonstrated to promote cancer cell death or survival dependent on cell type and condition. The mammalian target of rapamycin (mTOR) also regulates autophagy, as well as cell survival and proliferation pathways. Therefore, inhibition at this level of signaling would represent an excellent therapeutic target as it would limit cell growth, decrease cell proliferation, and boost autophagocytosis. Current investigations of mTOR inhibitors in combination with radiation appear to potentiate radiation's ability to induce autophagy. Further studies are necessary to fully elucidate which tumors have the most robust induction of autophagy in response to mTOR inhibition and radiation.

Original languageEnglish (US)
Pages (from-to)443-447
Number of pages5
JournalTechnology in Cancer Research and Treatment
Volume6
Issue number5
DOIs
StatePublished - Jan 1 2007

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Autophagy
Sirolimus
Radiation
Neoplasms
Cell Survival
Cell Death
Cell Proliferation
Therapeutics
Growth

Keywords

  • Apoptosis
  • Autophagy
  • Radiation
  • mTOR

ASJC Scopus subject areas

  • Oncology
  • Cancer Research

Cite this

Jaboin, J. J., Shinohara, E. T., Moretti, L., Yang, E. S., Kaminski, J. M., & Lu, B. (2007). The role of mTOR inhibition in augmenting radiation induced autophagy. Technology in Cancer Research and Treatment, 6(5), 443-447. https://doi.org/10.1177/153303460700600510

The role of mTOR inhibition in augmenting radiation induced autophagy. / Jaboin, Jerry J.; Shinohara, Eric T.; Moretti, Luigi; Yang, Eddy S.; Kaminski, Joseph Michael; Lu, Bo.

In: Technology in Cancer Research and Treatment, Vol. 6, No. 5, 01.01.2007, p. 443-447.

Research output: Contribution to journalArticle

Jaboin, JJ, Shinohara, ET, Moretti, L, Yang, ES, Kaminski, JM & Lu, B 2007, 'The role of mTOR inhibition in augmenting radiation induced autophagy', Technology in Cancer Research and Treatment, vol. 6, no. 5, pp. 443-447. https://doi.org/10.1177/153303460700600510
Jaboin, Jerry J. ; Shinohara, Eric T. ; Moretti, Luigi ; Yang, Eddy S. ; Kaminski, Joseph Michael ; Lu, Bo. / The role of mTOR inhibition in augmenting radiation induced autophagy. In: Technology in Cancer Research and Treatment. 2007 ; Vol. 6, No. 5. pp. 443-447.
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