Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
7
pubmed:dateCreated
2009-6-25
pubmed:abstractText
The 11q terminal deletion disorder (11q-) is a rare chromosomal disorder caused by a deletion in distal 11q. Fifty-six percent of patients have clinically significant congenital heart defects. A cardiac "critical region" has been identified in distal 11q that contains over 40 annotated genes. In this study, we identify the distal breakpoint of a patient with a paracentric inversion in distal 11q who had hypoplastic left heart and congenital thrombocytopenia. The distal breakpoint mapped to JAM-3, a gene previously identified as a candidate gene for causing HLHS in 11q-. To determine the role of JAM-3 in cardiac development, we performed a comprehensive cardiac phenotypic assessment in which the mouse homolog for JAM-3, JAM-C, has been deleted. These mice have normal cardiac structure and function, indicating that haplo-insufficiency of JAM-3 is unlikely to cause the congenital heart defects that occur in 11q- patients. Notably, we identified a previously undescribed phenotype, jitteriness, in most of the sick or dying adult JAM-C knockout mice. These data provide further insights into the identification of the putative disease-causing cardiac gene(s) in distal 11q, as well as the functions of JAM-C in normal organ development.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
1552-4833
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
149A
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1438-43
pubmed:dateRevised
2009-11-2
pubmed:meshHeading
pubmed-meshheading:19533782-Adult, pubmed-meshheading:19533782-Animals, pubmed-meshheading:19533782-Cell Adhesion Molecules, pubmed-meshheading:19533782-Chromosomes, Human, Pair 11, pubmed-meshheading:19533782-Disease Models, Animal, pubmed-meshheading:19533782-Female, pubmed-meshheading:19533782-Gene Deletion, pubmed-meshheading:19533782-Heart, pubmed-meshheading:19533782-Heart Defects, Congenital, pubmed-meshheading:19533782-Humans, pubmed-meshheading:19533782-Infant, Newborn, pubmed-meshheading:19533782-Jacobsen Distal 11q Deletion Syndrome, pubmed-meshheading:19533782-Male, pubmed-meshheading:19533782-Mice, pubmed-meshheading:19533782-Mice, Knockout, pubmed-meshheading:19533782-Phenotype, pubmed-meshheading:19533782-Pregnancy, pubmed-meshheading:19533782-Thrombocytopenia, Neonatal Alloimmune, pubmed-meshheading:19533782-Young Adult
pubmed:year
2009
pubmed:articleTitle
Deletion of JAM-C, a candidate gene for heart defects in Jacobsen syndrome, results in a normal cardiac phenotype in mice.
pubmed:affiliation
Department of Pediatrics, Division of Cardiology, UCSD School of Medicine, San Diego, California, USA.
pubmed:publicationType
Journal Article, Case Reports, Research Support, Non-U.S. Gov't, Research Support, N.I.H., Extramural