Cre-loxP chromosome engineering of a targeted deletion in the mouse corresponding to the 3p21.3 region of homozygous loss in human tumours.

Abstract:

:Chromosomal deletions are a common feature of epithelial tumours and when further defined by homozygous deletions, are often the location of tumour suppressor genes. Deletions within the short arm of chromosome 3 occur very frequently in human carcinomas: a minimal region of loss at 3p21.3 (the Luca) region has been defined by overlapping homozygous deletions in lung and breast cancer cell lines. Using a rapid strategy for Cre-loxP chromosome engineering, a deletion of approximately 370 kb was created in the mouse germline corresponding to the deleted region at 3p21.3. The deletion when homozygous is embryonic lethal. Heterozygotes develop normally despite being haplo-insufficient for twelve genes including the candidate tumour suppressor gene Rassf1. Because damage to 3p21.3 often occurs very early in the sequence of genetic changes that lead to malignancy, particularly in lung and breast cancer, further genetic damage to these mice will provide the opportunity to model multi-step tumorigenesis of these tumours.

journal_name

Oncogene

journal_title

Oncogene

authors

Smith AJ,Xian J,Richardson M,Johnstone KA,Rabbitts PH

doi

10.1038/sj.onc.1205530

subject

Has Abstract

pub_date

2002-07-04 00:00:00

pages

4521-9

issue

29

eissn

0950-9232

issn

1476-5594

journal_volume

21

pub_type

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