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Cited by 667

The DOI matches its Crossref record; 3 of the 3 references it cites were found in a registry or an index.

A mouse model of TSC1 reveals sex-dependent lethality from liver hemangiomas, and up-regulation of p70S6 kinase activity in Tsc1 null cells

Kwiatkowski, D. J.·2002·Human Molecular Genetics

Abstract

Tuberous sclerosis (TSC) is a autosomal dominant genetic disorder caused by mutations in either TSC1 or TSC2, and characterized by benign hamartoma growth. We developed a murine model of Tsc1 disease by gene targeting. Tsc1 null embryos die at mid-gestation from a failure of liver development. Tsc1 heterozygotes develop kidney cystadenomas and liver hemangiomas at high frequency, but the incidence of kidney tumors is somewhat lower than in Tsc2 heterozygote mice. Liver hemangiomas were more common, more severe and caused higher mortality in female than in male Tsc1 heterozygotes. Tsc1 null embryo fibroblast lines have persistent phosphorylation of the p70S6K (S6K) and its substrate S6, that is sensitive to treatment with rapamycin, indicating constitutive activation of the mTOR-S6K pathway due to loss of the Tsc1 protein, hamartin. Hyperphosphorylation of S6 is also seen in kidney tumors in the heterozygote mice, suggesting that inhibition of this pathway may have benefit in control of TSC hamartomas.

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Metadata

Authors
Kwiatkowski, D. J.
Venue
Human Molecular Genetics
Published
2002-03-01
Volume
11
Issue
5
Pages
525-534
ISSN
  • 0964-6906 (ISSN-L)
  • 1460-2083
OpenAlex
W2119979409
Cited by
667
References
3
FWCI
22.04
Type
journal article
Language
en
Open access
closed

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