Cooperativity of Nkx3.1 and Pten loss of function in a mouse model of prostate carcinogenesis
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ID: 266893
2002
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Abstract
Mouse models have provided significant insights into the molecular mechanisms of tumor suppressor gene function. Here we use mouse models of prostate carcinogenesis to demonstrate that the Nkx3.1 homeobox gene undergoes epigenetic inactivation through loss of protein expression. Loss of function of Nkx3.1 in mice cooperates with loss of function of the Pten tumor suppressor gene in cancer progression. This cooperativity results in the synergistic activation of Akt (protein kinase B), a key modulator of cell growth and survival. Our findings underscore the significance of interactions between tissue-specific regulators such as Nkx3.1 and broad-spectrum tumor suppressors such as Pten in contributing to the distinct phenotypes of different cancers.
* PIN,
: prostatic intraepithelial neoplasia;
LOH,
: loss of heterozygosity;
HGPIN,
: high-grade PIN;
LGPIN,
: low-grade PIN;
LCM,
: laser-capture microdissection
| Reference Key |
kim2002proceedingscooperativity
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|---|---|
| Authors | Minjung J. Kim;Robert D. Cardiff;Nishita Desai;Whitney A. Banach-Petrosky;Ramon Parsons;Michael M. Shen;Cory Abate-Shen;Minjung J. Kim;Robert D. Cardiff;Nishita Desai;Whitney A. Banach-Petrosky;Ramon Parsons;Michael M. Shen;Cory Abate-Shen; |
| Journal | proceedings of the national academy of sciences |
| Year | 2002 |
| DOI |
10.1073/pnas.042688999
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| URL | |
| Keywords |
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