Project description:In vivo profiling of hypoxic gene expression in gliomas using the hypoxia marker EF5 and laser-capture microdissection We have employed the hypoxia marker EF5 coupled with laser capture microdissection to isolate RNA from viable hypoxic and normoxic regions of 9L experimental gliomas.
Project description:E11.5 metanephric mesenchyme and ureteric bud were dissected from the E11.5 kidney rudiment using fine manual microdissection (ureteric bud only) or both fine manual microdissection and laser capture microdissection (metanephric mesenchyme) to define the gene expression profiles of these structures. Additionally, HoxA11, HoxD11 compound null E11.5 metanephric mesenchyme was obtained through laser capture microdissection allowing analysis of possible Hox targets in kidney development. Targets from multiple biological replicates of each were generated and the expression profiles were determined using Affymetrix MOE430_v2 arrays. Keywords: embryonic metanephric kidney, kidney development, Hoxa11, Hoxd11, compound null targeted mice
2006-05-01 | GSE3822 | GEO
Project description:Laser capture microdissection data
Project description:Laser capture microdissection was used to obtain individual LGN layers for DNA microarray of Rhesus array in macaque monkeys that Monocular Visual Deprivation was generated by either opaque dark contact lens or tarsoraphoplasty at birth. Keywords: Lateral Geniculate Nucleus, monocular deprivation, Rhesus array, Laser Capture Microdissection, Gene expression
Project description:Through laser capture microdissection and microarray analysis combined with slightly modified RNA extraction and amplification. we could analyze the subtle differential expression between colon normal cell and ulcerative colitis. Keywords: Ulcerative Colitis, amplification, microdissection
Project description:Differential expression of genes and proteins, as well as physiological processes, along the hepatic acinus, known collectively as hepatic zonation, is a fundamental feature of hepatic physiology. However, the precise cellular location of only a relatively small proportion of the ~14,000 genes expressed in the liver is known. This is critical information for understanding hepatic physiology as well as for the accurate targeting of gene transfer vectors for gene therapy. We have employed laser capture microdissection (LCM) and unbiased transcriptomic analysis of the normal adult mouse liver to define gene expression in a very distinct population of cells in the acinus, the glutamine-synthetase sub-compartment of perivenous hepatocytes, encompassing a one- to two-layer of cells surrounding the centrilobular vein. We confirmed the location of a number of genes whose expression is known to be restricted to these cells by virtue of immunohistochemistry or in situ hybridization (Slc1a2, Glul, Rhbg). We also identified genes whose expression had not previously been reported to be enriched in these cells (e.g. Sp5, Vldlr, Lpl, Gabrb3, Rcan2). Transcription factor analysis of the differentially expressed genes suggested important roles, in these cells, for members of the polycomb group, Wt1 and Tbx3. Collectively, our findings highlight the utility of combined LCM and transcriptome analysis for the identification of novel functions of distinct subclasses of hepatocytes. We plan to extend this approach to the mapping of physiological function across hepatic acini of the human liver. Comparison of mRNA expression by two hepatic cell populations: the glutamine synthetase-subcompartment of the perivenous compartment and zones 1+2 of the hepatic acinus Cells were isolated by laser capture microdissection and mRNA extracted by standard protocol.
Project description:This study aims at the identification and characterization of early-state radiation-associated neoplastic processes by histologic and transcriptomic analyses of thyroid tissues derived from a mouse model. Comprehensive histological examination of 246 thyroids (164 exposed, 82 non-exposed) was carried out. Proliferative and normal tissues from exposed cases and normal tissue from non-exposed cases were collected by laser-capture microdissection, followed by RNAseq transcriptomic profiling using a low input 3`-library preparation protocol, differential gene expression analysis and functional association by Gene Set Enrichment Analysis.