Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2008-5-13
pubmed:abstractText
Formalin-fixed paraffin-embedded (FFPE) prostate specimens are rich sources of molecular pathological information. However, FFPE-based microarray analysis of tissue samples may be hampered by the degradation and chemical alteration of RNA molecules due to the preservation procedure. In this report, we employed a probe analyses of Affymetrix oligonucleotide arrays at individual probe level to compensate for the potential loss of gene identifications associated with compromised mRNA quality in FFPE preparations. Furthermore, to increase the sample quality, we utilized laser capture microdissection of prostate tumor and benign epithelial cells. Remarkably, combination of these approaches recapitulated the common prostate cancer-associated gene expression alteration. Identification of prostate cancer associated-gene expression alterations such as AMACR, Kallikrein gene family and genes associated with androgen signaling such as PDEF and STEAP were consistent with previous findings reported in prostate cancer. These data suggest that combination of laser capture dissection with computational enhancement of microarray data may be useful for the assessment of gene expression changes in FFPE prostate cancer specimens.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
1476-5608
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
11
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
194-7
pubmed:meshHeading
pubmed-meshheading:17768422-Adenocarcinoma, pubmed-meshheading:17768422-Dissection, pubmed-meshheading:17768422-Epithelial Cells, pubmed-meshheading:17768422-Formaldehyde, pubmed-meshheading:17768422-Gene Expression Profiling, pubmed-meshheading:17768422-Humans, pubmed-meshheading:17768422-Image Processing, Computer-Assisted, pubmed-meshheading:17768422-Lasers, pubmed-meshheading:17768422-Male, pubmed-meshheading:17768422-Middle Aged, pubmed-meshheading:17768422-Neoplasm Proteins, pubmed-meshheading:17768422-Oligonucleotide Array Sequence Analysis, pubmed-meshheading:17768422-Paraffin Embedding, pubmed-meshheading:17768422-Prostate, pubmed-meshheading:17768422-Prostatectomy, pubmed-meshheading:17768422-Prostatic Neoplasms, pubmed-meshheading:17768422-RNA, Messenger, pubmed-meshheading:17768422-RNA, Neoplasm, pubmed-meshheading:17768422-RNA Stability, pubmed-meshheading:17768422-Tissue Fixation, pubmed-meshheading:17768422-Tissue Preservation
pubmed:year
2008
pubmed:articleTitle
Transcriptome analyses of benign and malignant prostate epithelial cells in formalin-fixed paraffin-embedded whole-mounted radical prostatectomy specimens.
pubmed:affiliation
Department of Genitourinary Pathology, Armed Forces Institute of Pathology, Washington, DC, USA.
pubmed:publicationType
Journal Article