Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
10
pubmed:dateCreated
1995-3-16
pubmed:abstractText
Tuberous sclerosis is an autosomal dominant disease whose characteristic feature is the development of multiple hamartomas in a variety of organs and tissues. Two major loci have been identified so far: TSC1 on chromosome 9q34 and TSC2 on chromosome 16p13.3. Loss of heterozygosity at 16p13.3-associated markers has been recently observed in hamartomatous lesions of some tuberous sclerosis patients. Here we report the first evidence of loss of heterozygosity at the TSC1 critical region in a giant cell astrocytoma of a familial tuberous sclerosis case. Segregation analysis showed that the 9q34 haplotype lost carried the putative normal TSC1 gene. These data support the hypothesis of both a germline and somatic loss-of-function mutation for the development of tuberous sclerosis hamartomas and suggest a tumor-suppressor-like activity also for the TSC1 gene product. Finally, the possible significance of a second small region of loss of heterozygosity at 9p21, found in the same astrocytoma, is discussed.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0964-6906
pubmed:author
pubmed:issnType
Print
pubmed:volume
3
pubmed:geneSymbol
TSC1
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1829-32
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1994
pubmed:articleTitle
9q34 loss of heterozygosity in a tuberous sclerosis astrocytoma suggests a growth suppressor-like activity also for the TSC1 gene.
pubmed:affiliation
CNR Centro Immunogenetica ed Oncologia Sperimentale, Università di Torino, italy.
pubmed:publicationType
Journal Article, Case Reports, Research Support, Non-U.S. Gov't