Cited by 429PI3K/AKT/mTOR signaling in cancerAdvanced Breast Cancer TherapiesMetabolism, Diabetes, and Cancer

Next-generation mTOR inhibitors in clinical oncology: how pathway complexity informs therapeutic strategy

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Wander, Seth A., Hennessy, Bryan T., Slingerland, Joyce M.·2011·Journal of Clinical Investigation

Abstract

Mammalian target of rapamycin (mTOR) is a PI3K-related kinase that regulates cell growth, proliferation, and survival via mTOR complex 1 (mTORC1) and mTORC2. The mTOR pathway is often aberrantly activated in cancers. While hypoxia, nutrient deprivation, and DNA damage restrain mTORC1 activity, multiple genetic events constitutively activate mTOR in cancers. Here we provide a brief overview of the signaling pathways up- and downstream of mTORC1 and -2, and discuss the insights into therapeutic anticancer targets - both those that have been tried in the clinic with limited success and those currently under clinical development - that knowledge of these pathways gives us.

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  • mTOR inhibition with rapamycin and newly developed agents may prevent the appearance of radiation-induced mucositis and its consequent negative impact on anticancer treatment outcome and cost.

    “our findings indicate that by preserving the tissue repopulating capacity of the epithelial stem cells, mTOR inhibition with rapamycin and newly developed agents (Wander et al., 2011) may prevent the appearance of radiation-induced mucositis and its consequent negative impact on anticancer treatment outcome and cost”
  • Treatments targeting key components of tumor hypoxia signaling pathways, including mTOR, are current approaches to cancer therapy.

    “Treatments targeting key components of tumor hypoxia signaling pathways, including mTOR, are one of the current approaches to cancer therapy.”

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  1. Frodin M, Gammeltoft S. Role and regula- tion of 90kDa ribosomal S6 kinase (RSK) in signal transduction. Mol Cell Endocrinol. 1999; 151(1-2):65-77.
  2. Goncharova EA, Krymskaya VP. Pulmonary lymphan- gioleiomyomatosis (LAM): progress and current chal- lenges. J Cell Biochem. 2008;103(2):369-382.
  3. Huang CH, et al. The structure of a human p110alpha/p85alpha complex elucidates the effects of oncogenic PI3Kalpha mutations. Science. 2007; 318(5857):1744-1748.
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Authors
Wander, S. A., Hennessy, B. T., & Slingerland, J. M.
Affiliations
  • University of Miami (US)
  • Royal College of Surgeons in Ireland (IE)
Corresponding author
Slingerland, Joyce M.
Venue
Journal of Clinical Investigation
Published
2011-04-01
Volume
121
Issue
4
Pages
1231-1241
ISSN
0021-9738 (ISSN-L)
OpenAlex
W2025935112
Cited by
427
References
157
Citations by year
2026: 7 · 2025: 17 · 2024: 10 · 2023: 18 · 2022: 16 · 2021: 14 · 2020: 23 · 2019: 23 · 2018: 27 · 2017: 39 · 2016: 28 · 2015: 63 · 2014: 51 · 2013: 47 · 2012: 28
FWCI
4.09
Type
journal article
Language
en
Open access
Locations
  • Journal of Clinical Investigation (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • Lenus, The Irish Health Repository (Dr Steevens Hospital Library) (submittedVersion)
Funders
  • Doris Duke Charitable Foundation
  • National Institutes of Health (5-R01-)
  • National Cancer Institute (5-R01-CA-105118-04, R01CA105118)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › PI3K/AKT/mTOR signaling in cancer
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Advanced Breast Cancer Therapies
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Metabolism, Diabetes, and Cancer
Keywords
mTOR inhibitors, mTOR signaling, mTORC1, mTORC2, PI3K-related kinases, cancer therapy, therapeutic target
MeSH terms
Tuberous Sclerosis Complex 1 Protein, Tuberous Sclerosis Complex 2 Protein, Phosphoinositide-3 Kinase Inhibitors, Antineoplastic Agents, Clinical Trials as Topic, Female, Humans, Male, Neoplasms, Transcription Factors, Signal Transduction, Phosphatidylinositol 3-Kinases, Sirolimus, Tumor Suppressor Proteins, Protein Kinase Inhibitors, TOR Serine-Threonine Kinases

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