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Science 2 September 1994:
Vol. 265. no. 5177, pp. 1445 - 1447
DOI: 10.1126/science.8073287

Articles

Science, Vol 265, Issue 5177, 1445-1447
Copyright © 1994 by American Association for the Advancement of Science


articles

Thrombocytopenia in c-mpl-deficient mice

AL Gurney, K Carver-Moore, FJ de Sauvage, and MW Moore

Department of Molecular Biology, Genentech, South San Francisco, CA 94080.

Thrombopoietin (TPO) is a cytokine that is involved in the regulation of platelet production. The receptor for TPO is c-Mpl. To further investigate the role and specificity of this receptor in regulating megakaryocytopoiesis, c-mpl-deficient mice were generated by gene targeting. The c-mpl-/- mice had an 85 percent decrease in their number of platelets and megakaryocytes but had normal amounts of other hematopoietic cell types. These mice also had increased concentrations of circulating TPO. These results show that c-mpl specifically regulates megakaryocytopoiesis and thrombopoiesis through activation by its ligand TPO.


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Lineage Commitment and Maturation in Hematopoietic Cells: The Case for Extrinsic Regulation.
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Involvement of Prolonged Ras Activation in Thrombopoietin-Induced Megakaryocytic Differentiation of a Human Factor-Dependent Hematopoietic Cell Line.
I. Matsumura, K. Nakajima, H. Wakao, S. Hattori, K. Hashimoto, H. Sugahara, T. Kato, H. Miyazaki, T. Hirano, and Y. Kanakura (1998)
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J. L. Williams, G. G. Pipia, N. S. Datta, and M. W. Long (1998)
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   Abstract »    Full Text »
Markedly Reduced Expression of Platelet c-mpl Receptor in Essential Thrombocythemia.
Y. Horikawa, I. Matsumura, K. Hashimoto, M. Shiraga, S. Kosugi, S. Tadokoro, T. Kato, H. Miyazaki, Y. Tomiyama, Y. Kurata, et al. (1997)
Blood 90, 4031-4038
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Normal Platelets and Megakaryocytes Are Produced In Vivo in the Absence of Thrombopoietin.
S. Bunting, R. Widmer, T. Lipari, L. Rangell, H. Steinmetz, K. Carver-Moore, M. W. Moore, G.-A. Keller, and F. J. de Sauvage (1997)
Blood 90, 3423-3429
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Chronic Thrombocytopenia Is Induced in Dogs by Development of Cross-Reacting Antibodies to the MpL Ligand.
D. C. Dale, J. L. Nichol, D. A. Rich, D. M. Best, S. J. Slichter, W. Sheridan, and P. Hunt (1997)
Blood 90, 3456-3461
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A 2.7-kb Portion of the 5' Flanking Region of the Murine Glycoprotein alpha IIb Gene Is Transcriptionally Active in Primitive Hematopoietic Progenitor Cells.
P. Tropel, V. Roullot, M. Vernet, C. Poujol, H. Pointu, P. Nurden, G. Marguerie, and D. Tronik-Le Roux (1997)
Blood 90, 2995-3004
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Thrombopoietin Inhibits in Vitro Osteoclastogenesis from Murine Bone Marrow Cells.
T. Wakikawa, A. Shioi, M. Hino, M. Inaba, Y. Nishizawa, N. Tatsumi, H. Morii, and S. Otani (1997)
Endocrinology 138, 4160-4166
   Abstract »    Full Text »    PDF »
Megakaryocyte Growth and Development Factor: A Review of Early Clinical Studies.
R. Abraham and R. L. Basser (1997)
Oncologist 2, 311-318
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The Efficacy of Single-Dose Administration of Thrombopoietin With Coadministration of Either Granulocyte/Macrophage or Granulocyte Colony-Stimulating Factor in Myelosuppressed Rhesus Monkeys.
K. J. Neelis, S. C.C. Hartong, T. Egeland, G. R. Thomas, D. L. Eaton, and G. Wagemaker (1997)
Blood 90, 2565-2573
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Adult Mice With Targeted Mutation of the Interleukin-11 Receptor (IL11Ra) Display Normal Hematopoiesis.
H. H. Nandurkar, L. Robb, D. Tarlinton, L. Barnett, F. Kontgen, and C. G. Begley (1997)
Blood 90, 2148-2159
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In Vitro Senescence and Apoptotic Cell Death of Human Megakaryocytes.
G. Zauli, M. Vitale, E. Falcieri, D. Gibellini, A. Bassini, C. Celeghini, M. Columbaro, and S. Capitani (1997)
Blood 90, 2234-2243
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Ability of Early Acting Cytokines to Directly Promote Survival and Suppress Apoptosis of Human Primitive CD34+CD38- Bone Marrow Cells With Multilineage Potential at the Single-Cell Level: Key Role of Thrombopoietin.
O. J. Borge, V. Ramsfjell, L. Cui, and S. E.W. Jacobsen (1997)
Blood 90, 2282-2292
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Regulation of the Serum Concentration of Thrombopoietin in Thrombocytopenic NF-E2 Knockout Mice.
R. A. Shivdasani, P. Fielder, G.-A. Keller, S. H. Orkin, and F. J. de Sauvage (1997)
Blood 90, 1821-1827
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Metabolism of Thrombopoietin (TPO) In Vivo: Determination of the Binding Dynamics for TPO in Mice.
E. Stefanich, T. Senn, R. Widmer, C. Fratino, G.-A. Keller, and P. J. Fielder (1997)
Blood 89, 4063-4070
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Thrombopoietin Does Not Induce Lineage-Restricted Commitment of Mpl-R Expressing Pluripotent Progenitors But Permits Their Complete Erythroid and Megakaryocytic Differentiation.
F. Goncalves, C. Lacout, J.-L. Villeval, F. Wendling, W. Vainchenker, and D. Dumenil (1997)
Blood 89, 3544-3553
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Human Platelets as a Model for the Binding and Degradation of Thrombopoietin.
P. J. Fielder, P. Hass, M. Nagel, E. Stefanich, R. Widmer, G. L. Bennett, G.-A. Keller, F. J. de Sauvage, and D. Eaton (1997)
Blood 89, 2782-2788
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Human Platelets Display High-Affinity Receptors for Thrombopoietin.
V. C. Broudy, N. L. Lin, D. F. Sabath, T. Papayannopoulou, and K. Kaushansky (1997)
Blood 89, 1896-1904
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Thrombopoietin Enhances Proliferation and Differentiation of Murine Yolk Sac Erythroid Progenitors.
T. Era, T. Takahashi, K. Sakai, K. Kawamura, and T. Nakano (1997)
Blood 89, 1207-1213
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Effects of Polyethylene Glycol-Conjugated Recombinant Human Megakaryocyte Growth and Development Factor on Platelet Counts after Chemotherapy for Lung Cancer.
M. Fanucchi, J. Glaspy, J. Crawford, J. Garst, R. Figlin, W. Sheridan, D. Menchaca, D. Tomita, H. Ozer, and L. Harker (1997)
N. Engl. J. Med. 336, 404-409
   Abstract »    Full Text »    PDF »



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