Linked Life Data

14980514

Source:http://linkedlifedata.com/resource/pubmed/id/14980514

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2004-2-24
pubmed:abstractText
The heterogeneous nuclear ribonucleoproteins (hnRNPs) F and H/H', containing the quasi-RNA recognition motif (qRRM) domains, are implicated in several steps of pre-mRNA processing and in cellular differentiation. We have compared a set of tissues and found striking differences in their levels of expression as well as in the nuclear versus the cytoplasmic distribution. Generally, hnRNP F is broadly expressed in many tissues with extremely strong expression in the prostate gland while hnRNP H/H' shows a more restricted degree of expression with low expression in some tissues, for example, liver, exocrine acini of the pancreas, thyroid gland and heart. At the cellular level, hnRNP F is, with few exceptions, predominantly expressed in the cytoplasm while hnRNP H/H' is more abundant in the nuclei. A quite pronounced heterogeneous expression pattern is seen in the proximal tubules of the kidney where hnRNP F is present at moderate cytoplasmic levels while hnRNP H/H' is undetectable, whereas both proteins are more evenly expressed in distal tubules and collecting ducts. Generally, tumor tissues reveal a broad expression of hnRNP F in the nuclei as well as in the cytoplasm while hnRNP H/H' is expressed at higher levels in the nuclei than in the cytoplasm. Up-regulation of hnRNP H/H' is found in a few tissues that normally express low cytoplasmic levels of hnRNP H/H', for example, adenocarcinoma of the pancreas, hepatocellular carcinoma and gastric carcinoma. hnRNP F is down-regulated in hepatocellular carcinoma and up-regulated in gastric carcinoma. The present study indicates the important potential role of this subset of hnRNPs on the gene expression in many tissues.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0014-4827
pubmed:author
pubmed:issnType
Print
pubmed:day
10
pubmed:volume
294
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
199-209
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2004
pubmed:articleTitle
Heterogeneous nuclear ribonucleoproteins F and H/H' show differential expression in normal and selected cancer tissues.
pubmed:affiliation
Department of Medical Biochemistry, University of Aarhus, DK-8000 Aarhus C, Denmark. bh@biokemi.au.dk
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't