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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
10
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pubmed:dateCreated |
1995-3-16
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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.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:status |
MEDLINE
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pubmed:month |
Oct
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pubmed:issn |
0964-6906
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
3
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pubmed:geneSymbol |
TSC1
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1829-32
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:7849708-Astrocytoma,
pubmed-meshheading:7849708-Child,
pubmed-meshheading:7849708-Child, Preschool,
pubmed-meshheading:7849708-Chromosome Deletion,
pubmed-meshheading:7849708-Chromosome Mapping,
pubmed-meshheading:7849708-Chromosomes, Human, Pair 16,
pubmed-meshheading:7849708-Chromosomes, Human, Pair 9,
pubmed-meshheading:7849708-Female,
pubmed-meshheading:7849708-Genes, Suppressor,
pubmed-meshheading:7849708-Hamartoma,
pubmed-meshheading:7849708-Humans,
pubmed-meshheading:7849708-Male,
pubmed-meshheading:7849708-Pedigree,
pubmed-meshheading:7849708-Tuberous Sclerosis
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pubmed:year |
1994
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pubmed:articleTitle |
9q34 loss of heterozygosity in a tuberous sclerosis astrocytoma suggests a growth suppressor-like activity also for the TSC1 gene.
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pubmed:affiliation |
CNR Centro Immunogenetica ed Oncologia Sperimentale, Università di Torino, italy.
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pubmed:publicationType |
Journal Article,
Case Reports,
Research Support, Non-U.S. Gov't
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