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Complex Systems Biology Approach in Connecting PI3K-Akt and NF-κB Pathways in Prostate Cancer
Eswar Shankar1,2, Michael C Weis3, Jayant Avva4
1Department of Urology, School of Medicine, Case Western Reserve University, Cleveland, OH 44106, USA. exs334@case.edu.
Abstract:
Phosphatidylinositol 3'-OH kinase (PI3K)-Akt and transcription factor NF-κB are important molecules involved in the regulation of cell proliferation, apoptosis, and oncogenesis. Both PI3K-Akt and Nuclear Factor-kappaB (NF-κB) are involved in the development and progression of prostate cancer, however, the crosstalk and molecules connecting these pathway remains unclear. A multilevel system representation of the PI3K-Akt and NF-κB pathways was constructed to determine which signaling components contribute to adaptive behavior and coordination. In silico experiments conducted using PI3K-Akt and NF-κB, mathematical models were modularized using biological functionality and were validated using a cell culture system. Our analysis demonstrates that a component representing the IκB kinase (IKK) complex can coordinate these two pathways. It is expected that interruption of this molecule could represent a potential therapeutic target for prostate cancer.
Insights
The IκB kinase (IKK) complex coordinates the PI3K-Akt and NF-κB pathways in prostate cancer. Targeting IKK may offer a new therapeutic strategy for treating this disease.
Area of Science:
- Molecular Biology
- Cancer Research
- Systems Biology
Background:
- The PI3K-Akt and NF-κB pathways are crucial in cell proliferation, apoptosis, and oncogenesis.
- Both pathways are implicated in prostate cancer development and progression, but their crosstalk is not fully understood.
Purpose of the Study:
- To elucidate the molecular connections and crosstalk between the PI3K-Akt and NF-κB pathways in prostate cancer.
- To identify signaling components responsible for pathway coordination and adaptive behavior.
Main Methods:
- Construction of a multilevel system representation of the PI3K-Akt and NF-κB pathways.
- In silico experiments using mathematical models of the pathways.
- Validation of computational models using a cell culture system.
Main Results:
- The IκB kinase (IKK) complex was identified as a key component coordinating the PI3K-Akt and NF-κB pathways.
- Mathematical modeling revealed the functional role of IKK in integrating these signaling networks.
Conclusions:
- The IKK complex plays a central role in the crosstalk between PI3K-Akt and NF-κB signaling in prostate cancer.
- Targeting the IKK complex presents a potential therapeutic strategy for prostate cancer treatment.
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