Related Experiment Video
Updated: May 26, 2026

Identification and Characterization of Metastatic Factors by Gene Transfer into the Novel RIP-Tag; RIP-tva Murine Model
Published on: October 16, 2017
Rapalogs in viral cancers
Abstract:
At present, 150 clinical trials are registered with the National Cancer Institute, which investigate the efficacy of inhibitors of the PI3K/Akt/mTOR pathway against multiple cancers. Efficacy varies not so much with drug action, but with tumor type, as different cancer types (and different pre-clinical models) exhibit widely differing susceptibilities to mTOR inhibitors, such as rapamycin. Viral cancers appear to be among the most mTOR-addicted and most rapamycin-sensitive cancers. We discuss the different mTOR inhibitors that are currently available and in clinical trials. We also speculate how the molecular makeup of viral cancers could guide the selection and use of known and novel mTOR inhibitors to treat virus-associated malignancies.
Insights
150 clinical trials are exploring PI3K/Akt/mTOR pathway inhibitors for cancer treatment. Viral cancers show high sensitivity to mTOR inhibitors like rapamycin, suggesting targeted therapy potential.
Area of Science:
- Oncology
- Molecular Biology
- Virology
Background:
- The PI3K/Akt/mTOR pathway is a key regulator of cell growth and survival, frequently dysregulated in cancer.
- 150 clinical trials are investigating PI3K/Akt/mTOR inhibitors for various cancers.
- Sensitivity to mTOR inhibitors varies significantly across different cancer types and preclinical models.
Discussion:
- Viral cancers exhibit a high dependence on the PI3K/Akt/mTOR pathway, making them particularly sensitive to mTOR inhibitors such as rapamycin.
- Understanding the molecular characteristics of viral cancers is crucial for optimizing mTOR inhibitor therapy.
- Current research focuses on identifying specific molecular signatures that predict response to mTOR inhibition.
Key Insights:
- Viral malignancies are identified as a particularly sensitive subset of cancers to mTOR inhibitors.
- Rapamycin and other mTOR inhibitors demonstrate promising efficacy in preclinical models of viral cancers.
- Tumor type, not solely drug action, dictates the efficacy of PI3K/Akt/mTOR pathway inhibitors.
Outlook:
- Future research should focus on tailoring mTOR inhibitor selection based on the molecular profile of viral cancers.
- Development of novel mTOR inhibitors may enhance treatment outcomes for virus-associated malignancies.
- Clinical trials investigating mTOR inhibitors in viral cancers are expected to yield significant therapeutic insights.
Related Concept Videos
Rous Sarcoma Virus (RSV) and Cancer
RSV is a retrovirus that contains two copies of a plus-strand RNA genome. Its genome consists of four main open...
Rous Sarcoma Virus (RSV) and Cancer
RSV is a retrovirus that contains two copies of a plus-strand RNA genome. Its genome consists of four main open...
Mechanisms of Retrovirus-induced Cancers
Mechanisms of Retrovirus-induced Cancers
Leaky Scanning
Viral Mutations
