Volume 13, Issue 3 pp. 145-150
Research Article
Full Access

The t(II; 22)(pI5.5; qII.23) in a retroperitoneal rhabdoid tumor also includes a regional deletion distal to CRYBB2 on 22q

Corinne Besnard-Guérin

Corinne Besnard-Guérin

Ludwig Institute for Cancer Research, University of California-San Diego, La Jolla, California

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Webster Cavenee

Corresponding Author

Webster Cavenee

Ludwig Institute for Cancer Research, University of California-San Diego, La Jolla, California

Department of Medicine, University of California-San Diego, La Jolla, California

Center for Molecular Genetics, University of California-San Diego, La Jolla, California

Ludwig Institute for Cancer Research, 9500 Gilman Drive, La Jolla, CA 92093-0660, U.S.A.Search for more papers by this author
Irene Newshams

Irene Newshams

Ludwig Institute for Cancer Research, University of California-San Diego, La Jolla, California

Department of Medicine, University of California-San Diego, La Jolla, California

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First published: July 1995
Citations: 16

Abstract

Translocations and deletions involving chromosomal band 22q 11 are common genetic aberrations in malignant rhabdoid tumors. Previous molecular analyses of a t(11; 22) in the malignant rhabdoid tumor cell line TM87-16 localized the breakpoint distal to BCR on 22q 11. In the present report, we have further refined the map position of this breakpoint between CRYBB2 and D22S258. Moreover, the D22S258, CRYBA4, D22S300, D22SI, and D22S310 loci, which lie between CRYBB2 and D22S42, were found to be deleted, presumably as a result of the translocation event. The identification of this deletion of at least 2 Mb on the long arm of chromosome 22 should be helpful for mapping the gene(s) in the region involved in the development of malignant rhabdoid tumors as well as providing insights into the mechanisms of chromosomal translocation in human solid tumors.

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