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Extracellular Protein Microarray Technology for High Throughput Detection of Low Affinity Receptor-Ligand Interactions
Published on: January 7, 2019
Reverse-phase protein microarrays: application to biomarker discovery and translational medicine
Amy VanMeter1, Michele Signore, Mariaelena Pierobon
1George Mason University, Center for Applied Proteomics and Molecular Medicine, Manassas, VA 20110, USA. avanmete@gmu.edu
Abstract:
Mapping of protein signaling networks within tumors can identify new targets for therapy and provide a means to stratify patients for individualized therapy. Kinases are important drug targets, as such kinase network information could become the basis for development of therapeutic strategies for improving treatment outcome. An urgent clinical goal is to identify functionally important molecular networks associated with subpopulations of patients that may not respond to conventional combination chemotherapy. Reverse-phase protein microarrays are a technology platform designed for quantitative, multiplexed analysis of specific phosphorylated, cleaved, or total (phosphorylated and nonphosphorylated) forms of cellular proteins from a limited amount of sample. This class of microarray can be used to interrogate cellular samples, serum or body fluids. This review focuses on the application of reverse-phase protein microarrays for translational research and therapeutic drug target discovery.
Insights
Mapping protein networks in tumors reveals new therapeutic targets and patient stratification methods. Reverse-phase protein microarrays enable quantitative analysis for drug discovery and personalized cancer treatment strategies.
Area of Science:
- Oncology
- Molecular Biology
- Biotechnology
Background:
- Protein signaling networks in tumors are crucial for identifying novel therapeutic targets.
- Understanding these networks aids in stratifying patients for personalized medicine.
- Kinase signaling pathways represent key targets for drug development in cancer therapy.
Purpose of the Study:
- To review the application of reverse-phase protein microarrays (RPPA) in translational research.
- To highlight the utility of RPPA in discovering therapeutic drug targets.
- To explore how RPPA can identify patient subpopulations unresponsive to conventional chemotherapy.
Main Methods:
- Reverse-phase protein microarrays (RPPA) enable quantitative, multiplexed analysis of cellular proteins.
- RPPA technology allows interrogation of specific protein forms (phosphorylated, cleaved, total).
- Analysis can be performed on limited sample amounts, including cellular samples, serum, and body fluids.
Main Results:
- RPPA facilitates the mapping of protein signaling networks within tumors.
- This mapping can identify novel therapeutic targets for cancer treatment.
- RPPA provides a means to stratify patients for individualized therapy based on molecular profiles.
Conclusions:
- Reverse-phase protein microarrays are a powerful platform for translational research in oncology.
- RPPA technology supports the discovery of new therapeutic strategies and drug targets.
- Application of RPPA aids in developing personalized medicine approaches for improved patient outcomes.
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