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Assessment of Resistance to Tyrosine Kinase Inhibitors by an Interrogation of Signal Transduction Pathways by Antibody Arrays
Published on: September 19, 2018
Overexpression and functional alterations of the EphA2 tyrosine kinase in cancer
Michael S Kinch1, Kelly Carles-Kinch
1MedImmune, Inc., Gaithersburg, Maryland 20878, USA. kinchm@medimmune.com
Abstract:
Cancer is a disease of aberrant signal transduction. The expression and function of intracellular signaling pathways are frequently subverted as cells progress towards a metastatic phenotype. In particular, tyrosine kinases initiate powerful signals that govern many different aspects of cell behavior. In Recent studies have demonstrated that the EphA2 receptor tyrosine kinase is frequently overexpressed and functionally altered in aggressive tumor cells, and that these changes promote metastatic character. Herein, we provide an overview of our current understanding of EphA2, with emphasis upon the differential regulation of EphA2 expression and function. We also show that differential EphA2 expression and function may provide a unique opportunity for selective therapeutic targeting of EphA2 in metastatic disease.
Insights
Aggressive cancer cells often show altered EphA2 receptor tyrosine kinase signaling, promoting metastasis. Targeting these EphA2 changes offers a potential strategy for treating metastatic cancer.
Area of Science:
- Oncology
- Molecular Biology
- Cell Signaling
Background:
- Cancer progression involves subverted intracellular signaling pathways, particularly tyrosine kinases.
- The EphA2 receptor tyrosine kinase is frequently overexpressed and altered in aggressive tumor cells.
- These alterations in EphA2 contribute to the metastatic potential of cancer cells.
Purpose of the Study:
- To provide an overview of the current understanding of EphA2.
- To emphasize the differential regulation of EphA2 expression and function.
- To explore the therapeutic potential of targeting EphA2 in metastatic disease.
Main Methods:
- Review of recent studies on EphA2.
- Analysis of EphA2 expression and function in cancer cells.
- Investigation of differential regulation mechanisms.
Main Results:
- EphA2 is frequently overexpressed and functionally altered in aggressive tumors.
- These EphA2 changes are linked to increased metastatic character.
- Differential regulation of EphA2 expression and function is observed.
Conclusions:
- Altered EphA2 signaling is a hallmark of aggressive and metastatic cancer.
- Understanding EphA2 regulation is crucial for therapeutic development.
- Targeting EphA2 presents a promising strategy for selective cancer therapy.
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