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Human Molecular Genetics, 2002, Vol. 11, No. 5 525-534
© 2002 Oxford University Press

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

David J. Kwiatkowski+, Hongbing Zhang, Jennifer L. Bandura, Kristina M. Heiberger, Michael Glogauer, Nisreen el-Hashemite and Hiroaki Onda

Genetics Laboratory, Hematology Division, Brigham and Women’s Hospital, Harvard Medical School, 221 Longwood Avenue, LM-302, Boston, MA 02115, USA

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.

+ To whom correspondence should be addressed. Tel: +1 617 278 0384; Fax: +1 617 734 2248; Email: dk@rics.bwh.harvard.edu


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J. Biol. Chem., July 16, 2004; 279(29): 29930 - 29937.
[Abstract] [Full Text] [PDF]


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Genes Dev.Home page
M. N. Corradetti, K. Inoki, N. Bardeesy, R. A. DePinho, and K.-L. Guan
Regulation of the TSC pathway by LKB1: evidence of a molecular link between tuberous sclerosis complex and Peutz-Jeghers syndrome
Genes & Dev., July 1, 2004; 18(13): 1533 - 1538.
[Abstract] [Full Text] [PDF]


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Cancer Res.Home page
N. El-Hashemite, H. Zhang, V. Walker, K. M. Hoffmeister, and D. J. Kwiatkowski
Perturbed IFN-{gamma}-Jak-Signal Transducers and Activators of Transcription Signaling in Tuberous Sclerosis Mouse Models: Synergistic Effects of Rapamycin-IFN-{gamma} Treatment
Cancer Res., May 15, 2004; 64(10): 3436 - 3443.
[Abstract] [Full Text] [PDF]


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J. Biol. Chem.Home page
O. J. Shah and T. Hunter
Critical Role of T-Loop and H-Motif Phosphorylation in the Regulation of S6 Kinase 1 by the Tuberous Sclerosis Complex
J. Biol. Chem., May 14, 2004; 279(20): 20816 - 20823.
[Abstract] [Full Text] [PDF]


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Am. J. Physiol. Lung Cell. Mol. Physiol.Home page
G. Finlay
The LAM cell: what is it, where does it come from, and why does it grow?
Am J Physiol Lung Cell Mol Physiol, April 1, 2004; 286(4): L690 - L693.
[Full Text] [PDF]


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Am. J. Physiol. Lung Cell. Mol. Physiol.Home page
J. Yu, A. Astrinidis, S. Howard, and E. P. Henske
Estradiol and tamoxifen stimulate LAM-associated angiomyolipoma cell growth and activate both genomic and nongenomic signaling pathways
Am J Physiol Lung Cell Mol Physiol, April 1, 2004; 286(4): L694 - L700.
[Abstract] [Full Text] [PDF]


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J. Med. Genet.Home page
J C Lewis, H V Thomas, K C Murphy, and J R Sampson
Genotype and psychological phenotype in tuberous sclerosis
J. Med. Genet., March 1, 2004; 41(3): 203 - 207.
[Full Text] [PDF]


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J Child NeurolHome page
S. Jozwiak, D. Kwiatkowski, K. Kotulska, M. Larysz-Brysz, J. Lewin-Kowalik, W. Grajkowska, and M. Roszkowski
Tuberin and Hamartin Expression Is Reduced in the Majority of Subependymal Giant Cell Astrocytomas in Tuberous Sclerosis Complex Consistent With a Two-Hit Model of Pathogenesis
J Child Neurol, February 1, 2004; 19(2): 102 - 106.
[Abstract] [PDF]


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Cancer Res.Home page
S. Han, T. M. Santos, A. Puga, J. Roy, E. A. Thiele, M. McCollin, A. Stemmer-Rachamimov, and V. Ramesh
Phosphorylation of Tuberin as a Novel Mechanism for Somatic Inactivation of the Tuberous Sclerosis Complex Proteins in Brain Lesions
Cancer Res., February 1, 2004; 64(3): 812 - 816.
[Abstract] [Full Text] [PDF]


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J. Biol. Chem.Home page
V. Murthy, S. Han, R. L. Beauchamp, N. Smith, L. A. Haddad, N. Ito, and V. Ramesh
Pam and Its Ortholog Highwire Interact with and May Negatively Regulate the TSC1{middle dot}TSC2 Complex
J. Biol. Chem., January 9, 2004; 279(2): 1351 - 1358.
[Abstract] [Full Text] [PDF]


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Toxicol PatholHome page
J. M. Ward and D. E. Devor-Henneman
Mouse Models of Human Familial Cancer Syndromes
Toxicol Pathol, January 1, 2004; 32(1_suppl): 90 - 98.
[Abstract] [PDF]


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J. Biol. Chem.Home page
A. Astrinidis, W. Senapedis, T. R. Coleman, and E. P. Henske
Cell Cycle-regulated Phosphorylation of Hamartin, the Product of the Tuberous Sclerosis Complex 1 Gene, by Cyclin-dependent Kinase 1/Cyclin B
J. Biol. Chem., December 19, 2003; 278(51): 51372 - 51379.
[Abstract] [Full Text] [PDF]


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J. Immunol.Home page
J. Gomez-Cambronero, J. Horn, C. C. Paul, and M. A. Baumann
Granulocyte-Macrophage Colony-Stimulating Factor Is a Chemoattractant Cytokine for Human Neutrophils: Involvement of the Ribosomal p70 S6 Kinase Signaling Pathway
J. Immunol., December 15, 2003; 171(12): 6846 - 6855.
[Abstract] [Full Text] [PDF]


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Sci SignalHome page
T. E. Harris and J. C. Lawrence Jr.
TOR Signaling
Sci. Signal., December 9, 2003; 2003(212): re15 - re15.
[Abstract] [Full Text] [PDF]


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Cancer Res.Home page
N. El-Hashemite, V. Walker, H. Zhang, and D. J. Kwiatkowski
Loss of Tsc1 or Tsc2 Induces Vascular Endothelial Growth Factor Production through Mammalian Target of Rapamycin
Cancer Res., September 1, 2003; 63(17): 5173 - 5177.
[Abstract] [Full Text] [PDF]


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Clin. Cancer Res.Home page
B. Govindarajan, M. C. Mizesko, M. S. Miller, H. Onda, M. Nunnelly, K. Casper, D. Brat, C. Cohen, and J. L Arbiser
Tuberous Sclerosis-associated Neoplasms Express Activated p42/44 Mitogen-activated Protein (MAP) Kinase, and Inhibition of MAP Kinase Signaling Results in Decreased in Vivo Tumor Growth
Clin. Cancer Res., August 1, 2003; 9(9): 3469 - 3475.
[Abstract] [Full Text] [PDF]


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Am. J. Physiol. Cell Physiol.Home page
G. A. Finlay, D. S. Hunter, C. L. Walker, K. E. Paulson, and B. L. Fanburg
Regulation of PDGF production and ERK activation by estrogen is associated with TSC2 gene expression
Am J Physiol Cell Physiol, August 1, 2003; 285(2): C409 - C418.
[Abstract] [Full Text] [PDF]


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NEJMHome page
I. K. Hariharan and D. A. Haber
Yeast, Flies, Worms, and Fish in the Study of Human Disease
N. Engl. J. Med., June 12, 2003; 348(24): 2457 - 2463.
[Full Text] [PDF]


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J. Nutr.Home page
L. S. Jefferson and S. R. Kimball
Amino Acids as Regulators of Gene Expression at the Level of mRNA Translation
J. Nutr., June 1, 2003; 133(6): 2046S - 2051.
[Abstract] [Full Text] [PDF]


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J. Biol. Chem.Home page
H. Nojima, C. Tokunaga, S. Eguchi, N. Oshiro, S. Hidayat, K.-i. Yoshino, K. Hara, N. Tanaka, J. Avruch, and K. Yonezawa
The Mammalian Target of Rapamycin (mTOR) Partner, Raptor, Binds the mTOR Substrates p70 S6 Kinase and 4E-BP1 through Their TOR Signaling (TOS) Motif
J. Biol. Chem., April 25, 2003; 278(18): 15461 - 15464.
[Abstract] [Full Text] [PDF]


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Am. J. Respir. Crit. Care Med.Home page
M. Karbowniczek, A. Astrinidis, B. R. Balsara, J. R. Testa, J. H. Lium, T. V. Colby, F. X. McCormack, and E. P. Henske
Recurrent Lymphangiomyomatosis after Transplantation: Genetic Analyses Reveal a Metastatic Mechanism
Am. J. Respir. Crit. Care Med., April 1, 2003; 167(7): 976 - 982.
[Abstract] [Full Text] [PDF]


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Am. J. Pathol.Home page
M. Karbowniczek, J. Yu, and E. P. Henske
Renal Angiomyolipomas from Patients with Sporadic Lymphangiomyomatosis Contain Both Neoplastic and Non-Neoplastic Vascular Structures
Am. J. Pathol., February 1, 2003; 162(2): 491 - 500.
[Abstract] [Full Text] [PDF]


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Cancer Res.Home page
M. Y. Liu, S. Cai, A. Espejo, M. T. Bedford, and C. L. Walker
14-3-3 Interacts with the Tumor Suppressor Tuberin at Akt Phosphorylation Site(s)
Cancer Res., November 15, 2002; 62(22): 6475 - 6480.
[Abstract] [Full Text] [PDF]


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J. Biol. Chem.Home page
Y. Li, K. Inoki, R. Yeung, and K.-L. Guan
Regulation of TSC2 by 14-3-3 Binding
J. Biol. Chem., November 15, 2002; 277(47): 44593 - 44596.
[Abstract] [Full Text] [PDF]


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J. Biol. Chem.Home page
L. A. Haddad, N. Smith, M. Bowser, Y. Niida, V. Murthy, C. Gonzalez-Agosti, and V. Ramesh
The TSC1 Tumor Suppressor Hamartin Interacts with Neurofilament-L and Possibly Functions as a Novel Integrator of the Neuronal Cytoskeleton
J. Biol. Chem., November 8, 2002; 277(46): 44180 - 44186.
[Abstract] [Full Text] [PDF]


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JCBHome page
A. Jaeschke, J. Hartkamp, M. Saitoh, W. Roworth, T. Nobukuni, A. Hodges, J. Sampson, G. Thomas, and R. Lamb
Tuberous sclerosis complex tumor suppressor-mediated S6 kinase inhibition by phosphatidylinositide-3-OH kinase is mTOR independent
J. Cell Biol., October 28, 2002; 159(2): 217 - 224.
[Abstract] [Full Text] [PDF]


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Cancer Res.Home page
H. L. Kenerson, L. D. Aicher, L. D. True, and R. S. Yeung
Activated Mammalian Target of Rapamycin Pathway in the Pathogenesis of Tuberous Sclerosis Complex Renal Tumors
Cancer Res., October 15, 2002; 62(20): 5645 - 5650.
[Abstract] [Full Text] [PDF]


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Genes Dev.Home page
T. Radimerski, J. Montagne, M. Hemmings-Mieszczak, and G. Thomas
Lethality of Drosophila lacking TSC tumor suppressor function rescued by reducing dS6K signaling
Genes & Dev., October 15, 2002; 16(20): 2627 - 2632.
[Abstract] [Full Text] [PDF]


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Proc. Natl. Acad. Sci. USAHome page
A. R. Tee, D. C. Fingar, B. D. Manning, D. J. Kwiatkowski, L. C. Cantley, and J. Blenis
Tuberous sclerosis complex-1 and -2 gene products function together to inhibit mammalian target of rapamycin (mTOR)-mediated downstream signaling
PNAS, October 15, 2002; 99(21): 13571 - 13576.
[Abstract] [Full Text] [PDF]


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J. Biol. Chem.Home page
M. Nellist, M. A. Goedbloed, C. de Winter, B. Verhaaf, A. Jankie, A. J. J. Reuser, A. M. W. van den Ouweland, P. van der Sluijs, and D. J. J. Halley
Identification and Characterization of the Interaction between Tuberin and 14-3-3zeta
J. Biol. Chem., October 11, 2002; 277(42): 39417 - 39424.
[Abstract] [Full Text] [PDF]


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GeneticsHome page
S. Matsumoto, A. Bandyopadhyay, D. J. Kwiatkowski, U. Maitra, and T. Matsumoto
Role of the Tsc1-Tsc2 Complex in Signaling and Transport Across the Cell Membrane in the Fission Yeast Schizosaccharomyces pombe
Genetics, July 1, 2002; 161(3): 1053 - 1063.
[Abstract] [Full Text] [PDF]



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