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Pre-clinical Evaluation of Tyrosine Kinase Inhibitors for Treatment of Acute Leukemia
Published on: September 18, 2013
PET Imaging of Receptor Tyrosine Kinases in Cancer
Weijun Wei1,2, Dalong Ni2, Emily B Ehlerding3
1Department of Nuclear Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China.
Abstract:
Overexpression and/or mutations of the receptor tyrosine kinase (RTK) subfamilies, such as epidermal growth factor receptors (EGFR) and vascular endothelial growth factor receptors (VEGFR), are closely associated with tumor cell growth, differentiation, proliferation, apoptosis, and cellular invasiveness. Monoclonal antibodies (mAb) and tyrosine kinase inhibitors (TKI) specifically inhibiting these RTKs have shown remarkable success in improving patient survival in many cancer types. However, poor response and even drug resistance inevitably occur. In this setting, the ability to detect and visualize RTKs with noninvasive diagnostic tools will greatly refine clinical treatment strategies for cancer patients, facilitate precise response prediction, and improve drug development. Positron emission tomography (PET) agents using targeted radioactively labeled antibodies have been developed to visualize tumor RTKs and are changing clinical decisions for certain cancer types. In the present review, we primarily focus on PET imaging of RTKs using radiolabeled antibodies with an emphasis on the clinical applications of these immunoPET probes. Mol Cancer Ther; 17(8); 1625-36. ©2018 AACR.
Insights
Positron emission tomography (PET) imaging using radiolabeled antibodies can visualize receptor tyrosine kinases (RTKs) in tumors. This noninvasive diagnostic tool aids in predicting cancer treatment response and developing new drugs.
Area of Science:
- Oncology
- Molecular Imaging
- Radiochemistry
Background:
- Overexpression and mutations in receptor tyrosine kinases (RTKs) drive tumor growth and invasiveness.
- Targeted therapies like monoclonal antibodies (mAbs) and tyrosine kinase inhibitors (TKIs) show success but face resistance.
- Noninvasive visualization of RTKs is crucial for refining cancer treatment strategies and predicting patient response.
Purpose of the Study:
- To review the clinical applications of positron emission tomography (PET) imaging for receptor tyrosine kinases (RTKs).
- To focus on immunoPET probes utilizing radiolabeled antibodies for visualizing tumor RTKs.
Main Methods:
- Review of existing literature on PET imaging agents targeting RTKs.
- Emphasis on the use of radiolabeled monoclonal antibodies for immunoPET.
- Analysis of clinical applications and impact on patient management.
Main Results:
- Radiolabeled antibody-based PET agents are effective in visualizing tumor RTKs.
- ImmunoPET is emerging as a valuable tool in clinical decision-making for specific cancer types.
- These probes facilitate precise response prediction and aid in drug development.
Conclusions:
- ImmunoPET offers a noninvasive method for detecting and visualizing RTKs in cancer patients.
- This technology has the potential to significantly improve personalized cancer therapy and drug development.
- Further clinical application of immunoPET probes is expected to enhance patient outcomes.
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