Abstract：
:Genetic lesions found in tumors are often targeted to the negative growth regulatory tumor suppressor genes. Much of our understanding of tumor suppressor gene function is derived from experimental manipulations in cultured cells. Recently, however, the generation of mice with germ line tumor suppressor gene mutations through gene targeting in embryonic stem cells has provided another dimension by allowing experimental studies of tumor suppressor function in an organismal context. Novel insights into the role of tumor suppressors in development, differentiation, cell cycle control, and tumor suppression have been obtained from the studies on these 'knockout' mice. In addition, such mice may serve as disease models for humans with inherited cancer predisposition syndromes. Perhaps the greatest advantage of many of the mouse tumor suppressor models is that they facilitate study of the roles of tumor suppressor gene loss in tumor initiation and progression in vivo. Moreover, derivation of primary cells from tumor suppressor-deficient mice has provided an important resource for in vitro studies on the role of targeted genes in cell cycle regulation, DNA damage response, regulation of apoptotic pathways, and preservation of genomic stability. In this review, we discuss some of the mechanistic insights provided by tumor suppressor-deficient mice and their utility as models for human cancer syndromes.
journal_name
Oncogenejournal_title
Oncogeneauthors
Ghebranious N,Donehower LAdoi
10.1038/sj.onc.1202573subject
Has Abstractpub_date
1998-12-24 00:00:00pages
3385-400issue
25eissn
0950-9232issn
1476-5594journal_volume
17pub_type
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