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        Automated Laser Capture Microdissection for Tissue Proteomics

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        Laser Capture Microdissection (LCM) is a technique for isolating pure cell populations from a heterogeneous tissue section or cytological preparation through direct visualization of the cells. This technique is applicable to molecular profiling of diseased and disease-free tissue, permitting correlation of cellular molecular signatures with specific cell populations. DNA, RNA, or protein analysis may be performed with the microdissected tissue by any method with adequate sensitivity.
        Automated LCM platforms combine graphical user interfaces and annotation software for visualization of the tissue of interest in addition to robotically controlled microdissection. The principal components of LCM technology are (1 ) visualization of the cells of interest through microscopy, (2 ) transfer of laser energy to a thermolabile polymer with formation of a polymer—cell composite, and (3 ) removal of the cells of interest from the heterogeneous tissue section. Automated LCM is compatible with a variety of tissue types, cellular staining methods, and tissue preservation protocols allowing microdissection of fresh or archival specimens in a high-throughput manner. This protocol describes microdissection techniques compatible with downstream proteomic analyses.
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