Linked Life Data

9162192

Source:http://linkedlifedata.com/resource/pubmed/id/9162192

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1997-5-27
pubmed:abstractText
Childhood endodermal sinus tumors (CESTs) are a unique category of germ cell tumors involving the testis and extragonadal region in children less than 4 years of age. Recent studies of CEST have shown recurrent cytogenetic abnormalities involving the short arm of chromosome 1, most commonly, a deletion of distal 1p. Experience with neuroblastomas has shown that cytogenetic analyses may underestimate the frequency of 1p deletion. To determine the frequency of deletion of Ip in CEST and to verify that 1p is, in fact, deleted and not translocated, we analyzed ten tumors by two-color fluorescence in situ hybridization on single-cell suspensions of interphase nuclei by using a cosmid probe from the PITSLRE kinase (p58) locus (previously mapped to 1p36) cohybridized with plasmid probe pUC1.77 (which recognizes the 1q heterochromatic region) to determine the copy number of chromosome 1. Eight of the ten tumors examined showed evidence of deletion of 1p36. Five of the eight tumors exhibited multiple subdones, and all subdones showed deletion of at least one copy of 1p36, indicating that the deletion probably occurred before the development of chromosome 1 aneusomy. We conclude that deletions of the short arm of chromosome 1, specifically 1p36, do occur in CEST and probably occur at a, higher incidence than that found in neuroblastoma Further studies are needed to determine the degree of overlap of the common area of deletion in CEST with that of neuroblastoma and to determine whether 1p deletion in CEST has prognostic significance.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
1045-2257
pubmed:author
pubmed:issnType
Print
pubmed:volume
16
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
15-20
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1996
pubmed:articleTitle
Deletion of 1p36 in childhood endodermal sinus tumors by two-color fluorescence in situ hybridization: a pediatric oncology group study.
pubmed:affiliation
Department of Pathology, Johns Hopkins Medical Institutions, Baltimore, Maryland, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't