Genomic database analysis for head and neck cancer prevention targets: MTOR signal transduction pathway

Cynthia Koenigsberg, Frank G. Ondrey

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


Background: Type II diabetes agents have anticancer effects on head and neck squamous cell carcinoma (HNSCC). The mechanistic target of rapamycin (MTOR) pathway represents a putative target. Materials and Methods: We interrogated an Affymetrix HNSCC dataset for MTOR-related gene expression. Results: MTOR expression itself was unchanged, but various related genes demonstrated differential expression. Pathway promoters ras homolog (RHEB), MTOR-associated protein (MLST8), and ribosomal protein S6 kinase B1 (RPS6KB1) were up-regulated. Expression of growth suppressors tuberous sclerosis complex 2 (TSC2), programmed cell death 4 (PDCD4), and BCL2 apoptosis regulator-associated agonist of cell death (BAD) were reduced in HNSCC. Upstream, phosphatidylinositol-4,5bisphosphate 3-kinase catalytic subunit alpha (PIK3CA), AKT serine/threonine kinase 1 (AKT1), and phosphatase and tensin homolog (PTEN) were up-regulated in cancer. Conclusion: Several MTOR pathway promoters and tumor suppressors were found to be differentially expressed, favoring MTOR pathway up-regulation in HNSCC. Genomic databases can be interrogated to identify intervention targets and endpoints in HNSCC trials.

Original languageEnglish (US)
Pages (from-to)5417-5421
Number of pages5
JournalAnticancer Research
Issue number10
StatePublished - Oct 2020

Bibliographical note

Funding Information:
The Authors want to thank Beverly Wuertz, BA, for critical review of the manuscript. Grant support for the original project: American Cancer Society Institutional Research Grant IRG-58-00140IRG44.

Publisher Copyright:
© 2020 International Institute of Anticancer Research. All rights reserved.


  • Chemoprevention
  • Head
  • MTOR
  • Neck squamous carcinoma


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