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Published on: May 1, 2015
The Role of the PI3K/Akt/mTOR Axis in Head and Neck Squamous Cell Carcinoma
Qian Jiang1,2, Jingyi Xiao1, Yao-Ching Hsieh2
1Nanjing Stomatological Hospital, Affiliated Hospital of Medical School, Institute of Stomatology, Nanjing University, Nanjing 210093, China.
Abstract:
Head and neck squamous cell carcinoma (HNSCC) is one of the most common malignancies globally, representing a significant public health problem with a poor prognosis. The development of efficient therapeutic strategies for HNSCC prevention and treatment is urgently needed. The PI3K/AKT/mTOR (PAM) signaling pathway is a highly conserved transduction network in eukaryotic cells that promotes cell survival, growth, and cycle progression. Dysfunction in components of this pathway, such as hyperactivity of PI3K, loss of PTEN function, and gain-of-function mutations in AKT, are well-known drivers of treatment resistance and disease progression in cancer. In this review, we discuss the major mutations and dysregulations in the PAM signaling pathway in HNSCC. We highlight the results of clinical trials involving inhibitors targeting the PAM signaling pathway as a strategy for treating HNSCC. Additionally, we examine the primary mechanisms of resistance to drugs targeting the PAM pathway and potential therapeutic strategies.
Insights
Head and neck squamous cell carcinoma (HNSCC) is a common cancer needing new treatments. This review explores targeting the PI3K/AKT/mTOR (PAM) pathway for HNSCC therapy and overcoming drug resistance.
Area of Science:
- Oncology
- Molecular Biology
- Cancer Signaling Pathways
Background:
- Head and neck squamous cell carcinoma (HNSCC) presents a global health challenge with poor patient outcomes.
- The PI3K/AKT/mTOR (PAM) signaling pathway is crucial for cell survival and growth, and its dysregulation drives cancer progression.
- Mutations in PI3K, AKT, and PTEN are common in HNSCC, contributing to treatment resistance.
Purpose of the Study:
- To review major mutations and dysregulations within the PAM signaling pathway in HNSCC.
- To evaluate clinical trial outcomes of PAM pathway inhibitors for HNSCC treatment.
- To examine resistance mechanisms and explore novel therapeutic strategies targeting the PAM pathway in HNSCC.
Main Methods:
- Literature review of mutations in the PAM pathway in HNSCC.
- Analysis of clinical trial data for PAM pathway inhibitors.
- Examination of molecular mechanisms of drug resistance.
Main Results:
- Significant dysregulations of the PAM pathway are identified in HNSCC.
- Clinical trials show varying efficacy of PAM pathway inhibitors.
- Key resistance mechanisms to PAM-targeted drugs are elucidated.
Conclusions:
- Targeting the PAM pathway is a promising therapeutic strategy for HNSCC.
- Understanding resistance mechanisms is critical for developing effective combination therapies.
- Further research is needed to optimize PAM-targeted treatments for HNSCC patients.
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