2-D Polyacrylamide Gel Electrophoresis Protocol Protocol for 2-D polyacrylamide gel electrophoresis. Includes: 50 ml IEF Lysis Buffer; 10X Electrophoresis Running Buffer (10 L); 30% Acrylamide Stock (1 liter); Separating Acrylamide Gel; 50 ml Equilibration Buffer I; 50 ml Equilibration Buffer II; Transfer Buffer; Sample Preparation; Tissue Processing; Reswelling; Prepare Gradient Acrylamide Gel (9-18%); Transfer and Sequencing of Proteins.
Detect and Quantitate MicroRNA in Laser Capture Microdissection Samples Three Ambion kits were used to quantitate specific miRNAs and to detect differential miRNA expression in various mouse brain regions and cell types isolated by laser capture microdissection (LCM). These techniques can be applied to studying miRNA in other species, tissues, and cell types. Includes: Obtain Laser Capture Microdissected Samples; Isolate miRNA from LCM Samples; Quantitate miRNA by qRT-PCR.
Immuno-Laser Capture Microdissection Protocol After fixation, frozen sections are immunostained under RNase-free conditions using a rapid three-step streptavidin-biotin technique followed by dehydration. The immunostained sections are ready for LCM. Includes: Development of Immuno-LCM.
Immunoblot Protocol Protocol for Immunoblot. Includes: Staining and Laser Capture Microdissection; Protein Separation by Polyacrylamide Gel Electrophoresis; Electrophoretic Transfer To a Membrane (Nylon, PVDF or Nitrocellulose); Primary and Secondary Antibody Incubations; Visualization.
Immunofluorescent Staining for the Laser Microdissection of Individual Cells Protocol Useful techniques to circumvent disruption of tissue structure in the analysis of gene expression are LCM and LDM. While they require specialized microscopes and systems, they are similar in that freshly-cut frozen tissue sections can be microdissected using either a general histological stain (like H&E) or by staining with fluorescently conjugated antibodies. The LCM system by Arcturus involves...
Laser Capture Microdissection (LCM) LCM utilizes an infrared laser integrated into a standard microscope. A transparent cap is attached to a thermoplastic transparent membrane which lies directly on the surface of a routinely prepared tissue section on a glass slide. The investigator examines the tissue section microscopically and activates the laser when the desired cells underlie the target. This in turn activates the membrane with subsequent binding and procurement of the cells of interest.
Laser-capture Microdissection Protocol LCM technology can harvest the cells of interest directly or can isolate specific cells by cutting away unwanted cells to give histologically pure enriched cell populations. A variety of downstream applications exist: DNA genotyping and loss-of-heterozygosity (LOH) analysis, etc. Protocol provides a thorough description of LCM techniques, with an emphasis on tips and troubleshooting advice derived from LCM users. The total time required to carry out this protocol is typically 1–1.5 h.
Microdissection Overview Human tissues are comprised of multiple interacting cell populations in a complex three dimensional arrangement with each cellular phenotype determined by a unique profile of mRNA and protein expression. Before microdissection techniques were developed, the only analysis tools for phenotypic studies were primarily immunohistochemistry and in-situ hybridization. While useful, these tools are limited to single gene analysis and, in general, do not allow qualitative studies.
Preparation and LCM of Paraffin Embedded Tissue Sections Protocol Protocol for the preparation of LCM of Paraffin embedded tissue sections. Includes: Fixation; Processing, Embedding and Tissue Sectioning; Staining; Laser Transfer; DNA Extraction Protocol of LCM tissue and PCR for DNA analysis; RNA Extraction Protocol of LCM tissue and RT-PCR for mRNA analysis.
Protocols for LCM Preparation and Analysis Protocols for LCM preparation and analysis. Includes protocols: Preparation, LCM and RNA/DNA extraction of Frozen Tissue Sections; Preparation and LCM of Paraffin Embedded Tissue Sections; Standard Protocols for Microdissected Tissue Analysis.