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The Biological Role of PI3K Pathway in Lung Cancer
Evangelos G Sarris1, Muhammad W Saif, Kostas N Syrigos
1Oncology Unit GPP, 3rd Dept of Medicine, Sotiria General Hospital, University of Athens, Athens 11527, Greece. ksyrigos@med.uoa.gr.
Abstract:
Lung cancer is the primary cause of cancer-related mortality worldwide and although improvements in treatment have been achieved over the last few years, long-term survival rates for lung cancer patients remain poor. Therefore, there is an imperative need for molecularly targeted agents that will achieve long-term disease control. Numerous downstream molecular pathways, such as EGF/RAS/RAF/MEK/ERK and PI3K/AKT/mTOR are identified as having a key role in the pathogenesis of various forms of human cancer, including lung cancer. PI3K/AKT/mTOR signal pathway is an important intracellular signal transduction pathway with a significant role in cell proliferation, growth, survival, vesicle trafficking, glucose transport, and cytoskeletal organization. Aberrations in many primary and secondary messenger molecules of this pathway, including mutations and amplifications, are accounted for tumor cell proliferation, inhibition of apoptosis, angiogenesis, metastasis and resistance to chemotherapy-radiotherapy. In this review article, we investigate thoroughly the biological role of PI3K pathway in lung cancer and its contribution in the development of future therapeutic strategies.
Insights
The PI3K/AKT/mTOR pathway is crucial in lung cancer development and progression. Targeting this pathway offers potential for novel lung cancer therapeutics to improve patient survival.
Area of Science:
- Oncology
- Molecular Biology
- Cell Signaling
Background:
- Lung cancer remains a leading cause of cancer mortality globally, with poor long-term survival rates despite treatment advances.
- The PI3K/AKT/mTOR pathway is a critical intracellular signaling pathway implicated in cell proliferation, growth, survival, and other cellular processes.
- Aberrations in the PI3K/AKT/mTOR pathway contribute to tumor development, including proliferation, apoptosis inhibition, angiogenesis, metastasis, and chemo-radiotherapy resistance in lung cancer.
Purpose of the Study:
- To comprehensively review the biological role of the PI3K/AKT/mTOR pathway in lung cancer pathogenesis.
- To explore the potential of targeting the PI3K/AKT/mTOR pathway for developing future lung cancer therapeutic strategies.
Main Methods:
- Literature review of scientific articles and research studies.
- Analysis of molecular pathways involved in lung cancer.
- Synthesis of information on PI3K/AKT/mTOR signaling and its role in lung cancer.
Main Results:
- The PI3K/AKT/mTOR pathway plays a significant role in various aspects of lung cancer, from initiation to progression and treatment resistance.
- Dysregulation of this pathway is frequently observed in lung tumors, highlighting its importance in the disease.
Conclusions:
- The PI3K/AKT/mTOR pathway is a key player in lung cancer biology.
- Targeting the PI3K/AKT/mTOR pathway presents a promising avenue for the development of novel molecularly targeted agents for lung cancer treatment.
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