Technique review |
Utility of reverse phase protein arrays: Applications to signalling pathways and human body arrays
Manager of the Laser Capture Microdissection Core Facility at NIH and working with the National Cancer Institute (NCI) in the Laboratory of Pathology.
Laboratory Technicians, Laboratory of Pathology, NCI.
Obtained her BSc in Medical Technology from the Ohio State University in 1988 and is currently working in the Laboratory of Pathology at the NCI.
Co-Director of the NCIFDA Clinical Proteomics Program and Senior Investigator at the Center for Biologics Evaluation and Research at the FDA.
Co-Director of the NCI-FDA Clinical Proteomics Program and Chief of Laboratory for the Laboratory of Pathology at the NCI.
Obtained his PhD in Chemistry from Georgetown University and is currently a post doc in the Laboratory of Pathology at the NCI.
Cloud P. Paweletz, National Cancer InstituteFood and Drug Administration, Clinical Proteomics Program, Building 29A, Room 2B02, Bethesda, MD 20892, USA Tel: +1 301 827 1754 Fax: +1 301 480 3256 E-mail: paweletz{at}cber.fda.gov
Protein microarrays offer a new means by which to conduct quantitative profiling of disease-associated proteins. The knowledge gained may provide novel strategies for early detection, diagnosis and therapeutic intervention. A variety of sophisticated approaches, including gene arrays, sequencing consortiums and large-scale two-dimensional gel electrophoresis, continue to generate lists of proteins potentially linked to disease aetiology and progression. The challenge is to evaluate quantitatively promising lead protein candidates using matched normal and diseased cell populations. In contrast to the antibody array, the reverse phase protein microarrays (RPPA) do not require labelling of cellular protein lysates, and constitute a sensitive high throughput platform for marker screening, pathophysiology investigation and therapeutic monitoring. In this paper, examples will be provided using RPPAs in the study of the apoptotic signalling cascade and in the evaluation of the expression of organ-specific protein makers using microdissected human organ cell lysates configured as human body arrays.
Keywords: protein microarrays, proteomics, laser capture microdissection, clinical proteomics
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