Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2001-7-26
pubmed:abstractText
To identify changes in gene expression associated with emphysema, we used differential display to compare RNA extracted from emphysematous lungs with that of unused donor tissues taken at the time of transplant. A differentially expressed sequence was identified corresponding to the 3' end of a novel human complementary DNA (cDNA) of unknown function. The human and mouse cDNA sequences were completed by 5' rapid amplification of cDNA ends. We have named it DEXI for dexamethasone-induced transcript. DEXI messenger RNA (mRNA) was upregulated 147% in emphysematous tissue compared with donor tissue. DEXI mRNA was also upregulated 230% by dexamethasone treatment of A549. The increase in expression of DEXI found in emphysema patients' tissues may be owing to their known treatment with corticosteroids. The human DEXI gene is intronless and the predicted open reading frame encodes a 95-residue acidic protein. Database searches revealed the presence of homologues only in mammals, and a human pseudogene. The protein has a predicted central transmembrane domain and a carboxy-terminal leucine zipper. The human mRNA has a single 1.3-kb transcript. We suggest that the increased expression of DEXI in emphysema may either be relevant to disease progression or be indicative of glucocorticoid responsiveness in treated patients.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
1044-1549
pubmed:author
pubmed:issnType
Print
pubmed:volume
25
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
119-24
pubmed:dateRevised
2010-5-26
pubmed:meshHeading
pubmed-meshheading:11472984-Amino Acid Sequence, pubmed-meshheading:11472984-Animals, pubmed-meshheading:11472984-Base Sequence, pubmed-meshheading:11472984-Cloning, Molecular, pubmed-meshheading:11472984-DNA, Complementary, pubmed-meshheading:11472984-DNA-Binding Proteins, pubmed-meshheading:11472984-Dexamethasone, pubmed-meshheading:11472984-Emphysema, pubmed-meshheading:11472984-Female, pubmed-meshheading:11472984-Humans, pubmed-meshheading:11472984-Male, pubmed-meshheading:11472984-Membrane Proteins, pubmed-meshheading:11472984-Middle Aged, pubmed-meshheading:11472984-Molecular Sequence Data, pubmed-meshheading:11472984-Polymerase Chain Reaction, pubmed-meshheading:11472984-RNA, Messenger, pubmed-meshheading:11472984-Sequence Homology, Amino Acid, pubmed-meshheading:11472984-Tumor Cells, Cultured, pubmed-meshheading:11472984-Up-Regulation
pubmed:year
2001
pubmed:articleTitle
Cloning of dexamethasone-induced transcript: a novel glucocorticoid-induced gene that is upregulated in emphysema.
pubmed:affiliation
Department of Histochemistry, Division of Investigative Sciences, Imperial College School of Medicine, 3rd Floor Chelsea & Westminster Hospital, 369 Fulham Road, London SW10 9NH, UK. alasdair.edgar@ic.ac.uk
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't