Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
9
pubmed:dateCreated
2003-10-21
pubmed:abstractText
B7-H4 is a recently identified B7 family member that negatively regulates T cell immunity by the inhibition of T cell proliferation, cytokine production, and cell cycle progression. In this study, we report that the genomic DNA of human B7-H4 is mapped on chromosome 1 comprised of six exons and five introns spanning 66 kb, of which exon 6 is used for alternative splicing to generate two different transcripts. Similar B7-H4 structure is also found in mouse genomic DNA in chromosome 3. A human B7-H4 pseudogene is identified in chromosome 20p11.1 with a single exon and two stop codons in the coding region. Immunohistochemistry analysis using B7-H4-specific mAb demonstrates that B7-H4 is not expressed on the majority of normal human tissues. In contrast, up to 85% (22 of 26) of ovarian cancer and 31% (5 of 16) of lung cancer tissues constitutively express B7-H4. Our results indicate a tight regulation of B7-H4 expression in the translational level in normal peripheral tissues and a potential role of B7-H4 in the evasion of tumor immunity.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0022-1767
pubmed:author
pubmed:issnType
Print
pubmed:day
1
pubmed:volume
171
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
4650-4
pubmed:dateRevised
2011-11-17
pubmed:meshHeading
pubmed-meshheading:14568939-Animals, pubmed-meshheading:14568939-Antigens, CD80, pubmed-meshheading:14568939-Cell Line, Tumor, pubmed-meshheading:14568939-Down-Regulation, pubmed-meshheading:14568939-Exons, pubmed-meshheading:14568939-Female, pubmed-meshheading:14568939-Gene Expression Profiling, pubmed-meshheading:14568939-Gene Order, pubmed-meshheading:14568939-Humans, pubmed-meshheading:14568939-Introns, pubmed-meshheading:14568939-Lung Neoplasms, pubmed-meshheading:14568939-Mice, pubmed-meshheading:14568939-Multigene Family, pubmed-meshheading:14568939-Neoplasm Proteins, pubmed-meshheading:14568939-Organ Specificity, pubmed-meshheading:14568939-Ovarian Neoplasms, pubmed-meshheading:14568939-Sequence Analysis, DNA, pubmed-meshheading:14568939-Transcription, Genetic, pubmed-meshheading:14568939-V-Set Domain-Containing T-Cell Activation Inhibitor 1
pubmed:year
2003
pubmed:articleTitle
Genomic organization and expression analysis of B7-H4, an immune inhibitory molecule of the B7 family.
pubmed:affiliation
Department of Immunology, Mayo Graduate and Medical Schools, Mayo Clinic, Rochester, MN 55905, USA.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't