Publication Date:
2007-01-06
Description:
Wilms tumor is a pediatric kidney cancer associated with inactivation of the WT1 tumor-suppressor gene in 5 to 10% of cases. Using a high-resolution screen for DNA copy-number alterations in Wilms tumor, we identified somatic deletions targeting a previously uncharacterized gene on the X chromosome. This gene, which we call WTX, is inactivated in approximately one-third of Wilms tumors (15 of 51 tumors). Tumors with mutations in WTX lack WT1 mutations, and both genes share a restricted temporal and spatial expression pattern in normal renal precursors. In contrast to biallelic inactivation of autosomal tumor-suppressor genes, WTX is inactivated by a monoallelic "single-hit" event targeting the single X chromosome in tumors from males and the active X chromosome in tumors from females.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rivera, Miguel N -- Kim, Woo Jae -- Wells, Julie -- Driscoll, David R -- Brannigan, Brian W -- Han, Moonjoo -- Kim, James C -- Feinberg, Andrew P -- Gerald, William L -- Vargas, Sara O -- Chin, Lynda -- Iafrate, A John -- Bell, Daphne W -- Haber, Daniel A -- P01-CA101942/CA/NCI NIH HHS/ -- R37 CA054358/CA/NCI NIH HHS/ -- R37 CA054358-17/CA/NCI NIH HHS/ -- R37-CA058596/CA/NCI NIH HHS/ -- T32-CA009216/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2007 Feb 2;315(5812):642-5. Epub 2007 Jan 4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Massachusetts General Hospital Cancer Center, Harvard Medical Center, Boston, MA 02114, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17204608" target="_blank"〉PubMed〈/a〉
Keywords:
Adaptor Proteins, Signal Transducing
;
Alleles
;
Amino Acid Sequence
;
Animals
;
Cell Line
;
Chromosome Deletion
;
Chromosomes, Human, X/*genetics
;
Female
;
Gene Expression
;
*Gene Silencing
;
*Genes, Wilms Tumor
;
Heterozygote
;
Humans
;
In Situ Hybridization, Fluorescence
;
Kidney/embryology/metabolism
;
Kidney Neoplasms/*genetics
;
Male
;
Mice
;
Mice, Inbred C57BL
;
Molecular Sequence Data
;
Mutation
;
Point Mutation
;
Tumor Suppressor Proteins/chemistry/*genetics/physiology
;
Wilms Tumor/*genetics
;
beta Catenin/genetics
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
Permalink
