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Bergmeier W, Goerge T, Wang HW, Crittenden JR, Baldwin AC, Cifuni SM, Housman DE, Graybiel AM, Wagner DD. Mice lacking the signaling molecule CalDAG-GEFI represent a model for leukocyte adhesion deficiency type III. J Clin Invest 2007; 117:1699-707. [PMID: 17492052 PMCID: PMC1865026 DOI: 10.1172/jci30575] [Citation(s) in RCA: 158] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2006] [Accepted: 02/27/2007] [Indexed: 12/22/2022] Open
Abstract
Single gene mutations in beta integrins can account for functional defects of individual cells of the hematopoietic system. In humans, mutations in beta(2) integrin lead to leukocyte adhesion deficiency (LAD) syndrome and mutations in beta(3) integrin cause the bleeding disorder Glanzmann thrombasthenia. However, multiple defects in blood cells involving various beta integrins (beta(1), beta(2), and beta(3)) occur simultaneously in patients with the recently described LAD type III (LAD-III). Here we show that the product of a single gene, Ca(2+) and diacylglycerol-regulated guanine nucleotide exchange factor I (CalDAG-GEFI), controlled the activation of all 3 integrins in the hematopoietic system. Neutrophils from CalDAG-GEFI(-/-) mice exhibited strong defects in Rap1 and beta(1) and beta(2) integrin activation while maintaining normal calcium flux, degranulation, and ROS generation. Neutrophils from CalDAG-GEFI-deficient mice failed to adhere firmly to stimulated venules and to migrate into sites of inflammation. Furthermore, CalDAG-GEFI regulated the activation of beta(1) and beta(3) integrins in platelets, and CalDAG-GEFI deficiency caused complete inhibition of arterial thrombus formation in mice. Thus, mice engineered to lack CalDAG-GEFI have a combination of defects in leukocyte and platelet functions similar to that of LAD-III patients.
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Affiliation(s)
- Wolfgang Bergmeier
- CBR Institute for Biomedical Research and
Department of Pathology, Harvard Medical School, Boston, Massachusetts, USA.
Department of Brain and Cognitive Sciences and McGovern Institute for Brain Research and
Center for Cancer Research, Massachusetts Institute of Technology (MIT), Cambridge, Massachusetts, USA
| | - Tobias Goerge
- CBR Institute for Biomedical Research and
Department of Pathology, Harvard Medical School, Boston, Massachusetts, USA.
Department of Brain and Cognitive Sciences and McGovern Institute for Brain Research and
Center for Cancer Research, Massachusetts Institute of Technology (MIT), Cambridge, Massachusetts, USA
| | - Hong-Wei Wang
- CBR Institute for Biomedical Research and
Department of Pathology, Harvard Medical School, Boston, Massachusetts, USA.
Department of Brain and Cognitive Sciences and McGovern Institute for Brain Research and
Center for Cancer Research, Massachusetts Institute of Technology (MIT), Cambridge, Massachusetts, USA
| | - Jill R. Crittenden
- CBR Institute for Biomedical Research and
Department of Pathology, Harvard Medical School, Boston, Massachusetts, USA.
Department of Brain and Cognitive Sciences and McGovern Institute for Brain Research and
Center for Cancer Research, Massachusetts Institute of Technology (MIT), Cambridge, Massachusetts, USA
| | - Andrew C.W. Baldwin
- CBR Institute for Biomedical Research and
Department of Pathology, Harvard Medical School, Boston, Massachusetts, USA.
Department of Brain and Cognitive Sciences and McGovern Institute for Brain Research and
Center for Cancer Research, Massachusetts Institute of Technology (MIT), Cambridge, Massachusetts, USA
| | - Stephen M. Cifuni
- CBR Institute for Biomedical Research and
Department of Pathology, Harvard Medical School, Boston, Massachusetts, USA.
Department of Brain and Cognitive Sciences and McGovern Institute for Brain Research and
Center for Cancer Research, Massachusetts Institute of Technology (MIT), Cambridge, Massachusetts, USA
| | - David E. Housman
- CBR Institute for Biomedical Research and
Department of Pathology, Harvard Medical School, Boston, Massachusetts, USA.
Department of Brain and Cognitive Sciences and McGovern Institute for Brain Research and
Center for Cancer Research, Massachusetts Institute of Technology (MIT), Cambridge, Massachusetts, USA
| | - Ann M. Graybiel
- CBR Institute for Biomedical Research and
Department of Pathology, Harvard Medical School, Boston, Massachusetts, USA.
Department of Brain and Cognitive Sciences and McGovern Institute for Brain Research and
Center for Cancer Research, Massachusetts Institute of Technology (MIT), Cambridge, Massachusetts, USA
| | - Denisa D. Wagner
- CBR Institute for Biomedical Research and
Department of Pathology, Harvard Medical School, Boston, Massachusetts, USA.
Department of Brain and Cognitive Sciences and McGovern Institute for Brain Research and
Center for Cancer Research, Massachusetts Institute of Technology (MIT), Cambridge, Massachusetts, USA
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Boehm T, Hofer S, Winklehner P, Kellersch B, Geiger C, Trockenbacher A, Neyer S, Fiegl H, Ebner S, Ivarsson L, Schneider R, Kremmer E, Heufler C, Kolanus W. Attenuation of cell adhesion in lymphocytes is regulated by CYTIP, a protein which mediates signal complex sequestration. EMBO J 2003; 22:1014-24. [PMID: 12606567 PMCID: PMC150334 DOI: 10.1093/emboj/cdg101] [Citation(s) in RCA: 55] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
An important theme in molecular cell biology is the regulation of protein recruitment to the plasma membrane. Fundamental biological processes such as proliferation, differentiation or leukocyte functions are initiated and controlled through the reversible binding of signaling proteins to phosphorylated membrane components. This is mediated by specialized interaction modules, such as SH2 and PH domains. Cytohesin-1 is an intracellular guanine nucleotide exchange factor, which regulates leukocyte adhesion. The activity of cytohesin-1 is controlled by phospho inositide-dependent membrane recruitment. An interacting protein was identified, the expression of which is upregulated by cytokines in hematopoietic cells. This molecule, CYTIP, is also recruited to the cell cortex by integrin signaling via its PDZ domain. However, stimulation of Jurkat cells with phorbol ester results in re-localization of CYTIP to the cytoplasm, and membrane detachment of cytohesin-1 strictly requires co-expression of CYTIP. Consequently, stimulated adhesion of Jurkat cells to intracellular adhesion molecule-1 is repressed by CYTIP. These findings outline a novel mechanism of signal chain abrogation through sequestration of a limiting component by specific protein-protein interactions.
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Affiliation(s)
- Thomas Boehm
- Laboratory for Molecular Biology, Gene Center, University of Munich, Feodor-Lynen-Straße 25, D-81377 Munich, GSF-National Research Center for Environment and Health, Marchioninistraße 25, D-81377 Munich, Germany, Department of Dermatology, University of Innsbruck, Anichstraße 35, A-6020 Innsbruck and Institute of Biochemistry, University of Innsbruck, Peter Mayerstraße 1, Innsbruck, Austria Present address: Institute of Molecular Physiology and Developmental Biology, Division of Cellular Biochemistry, University of Bonn, Karlrobert-Kreiten Straße 13, D-53115 Bonn, Germany Corresponding authors e-mail: or
T.Boehm and S.Hofer contributed equally to this work
| | - Susanne Hofer
- Laboratory for Molecular Biology, Gene Center, University of Munich, Feodor-Lynen-Straße 25, D-81377 Munich, GSF-National Research Center for Environment and Health, Marchioninistraße 25, D-81377 Munich, Germany, Department of Dermatology, University of Innsbruck, Anichstraße 35, A-6020 Innsbruck and Institute of Biochemistry, University of Innsbruck, Peter Mayerstraße 1, Innsbruck, Austria Present address: Institute of Molecular Physiology and Developmental Biology, Division of Cellular Biochemistry, University of Bonn, Karlrobert-Kreiten Straße 13, D-53115 Bonn, Germany Corresponding authors e-mail: or
T.Boehm and S.Hofer contributed equally to this work
| | - Patricia Winklehner
- Laboratory for Molecular Biology, Gene Center, University of Munich, Feodor-Lynen-Straße 25, D-81377 Munich, GSF-National Research Center for Environment and Health, Marchioninistraße 25, D-81377 Munich, Germany, Department of Dermatology, University of Innsbruck, Anichstraße 35, A-6020 Innsbruck and Institute of Biochemistry, University of Innsbruck, Peter Mayerstraße 1, Innsbruck, Austria Present address: Institute of Molecular Physiology and Developmental Biology, Division of Cellular Biochemistry, University of Bonn, Karlrobert-Kreiten Straße 13, D-53115 Bonn, Germany Corresponding authors e-mail: or
T.Boehm and S.Hofer contributed equally to this work
| | - Bettina Kellersch
- Laboratory for Molecular Biology, Gene Center, University of Munich, Feodor-Lynen-Straße 25, D-81377 Munich, GSF-National Research Center for Environment and Health, Marchioninistraße 25, D-81377 Munich, Germany, Department of Dermatology, University of Innsbruck, Anichstraße 35, A-6020 Innsbruck and Institute of Biochemistry, University of Innsbruck, Peter Mayerstraße 1, Innsbruck, Austria Present address: Institute of Molecular Physiology and Developmental Biology, Division of Cellular Biochemistry, University of Bonn, Karlrobert-Kreiten Straße 13, D-53115 Bonn, Germany Corresponding authors e-mail: or
T.Boehm and S.Hofer contributed equally to this work
| | - Christiane Geiger
- Laboratory for Molecular Biology, Gene Center, University of Munich, Feodor-Lynen-Straße 25, D-81377 Munich, GSF-National Research Center for Environment and Health, Marchioninistraße 25, D-81377 Munich, Germany, Department of Dermatology, University of Innsbruck, Anichstraße 35, A-6020 Innsbruck and Institute of Biochemistry, University of Innsbruck, Peter Mayerstraße 1, Innsbruck, Austria Present address: Institute of Molecular Physiology and Developmental Biology, Division of Cellular Biochemistry, University of Bonn, Karlrobert-Kreiten Straße 13, D-53115 Bonn, Germany Corresponding authors e-mail: or
T.Boehm and S.Hofer contributed equally to this work
| | - Alexander Trockenbacher
- Laboratory for Molecular Biology, Gene Center, University of Munich, Feodor-Lynen-Straße 25, D-81377 Munich, GSF-National Research Center for Environment and Health, Marchioninistraße 25, D-81377 Munich, Germany, Department of Dermatology, University of Innsbruck, Anichstraße 35, A-6020 Innsbruck and Institute of Biochemistry, University of Innsbruck, Peter Mayerstraße 1, Innsbruck, Austria Present address: Institute of Molecular Physiology and Developmental Biology, Division of Cellular Biochemistry, University of Bonn, Karlrobert-Kreiten Straße 13, D-53115 Bonn, Germany Corresponding authors e-mail: or
T.Boehm and S.Hofer contributed equally to this work
| | - Susanne Neyer
- Laboratory for Molecular Biology, Gene Center, University of Munich, Feodor-Lynen-Straße 25, D-81377 Munich, GSF-National Research Center for Environment and Health, Marchioninistraße 25, D-81377 Munich, Germany, Department of Dermatology, University of Innsbruck, Anichstraße 35, A-6020 Innsbruck and Institute of Biochemistry, University of Innsbruck, Peter Mayerstraße 1, Innsbruck, Austria Present address: Institute of Molecular Physiology and Developmental Biology, Division of Cellular Biochemistry, University of Bonn, Karlrobert-Kreiten Straße 13, D-53115 Bonn, Germany Corresponding authors e-mail: or
T.Boehm and S.Hofer contributed equally to this work
| | - Heidi Fiegl
- Laboratory for Molecular Biology, Gene Center, University of Munich, Feodor-Lynen-Straße 25, D-81377 Munich, GSF-National Research Center for Environment and Health, Marchioninistraße 25, D-81377 Munich, Germany, Department of Dermatology, University of Innsbruck, Anichstraße 35, A-6020 Innsbruck and Institute of Biochemistry, University of Innsbruck, Peter Mayerstraße 1, Innsbruck, Austria Present address: Institute of Molecular Physiology and Developmental Biology, Division of Cellular Biochemistry, University of Bonn, Karlrobert-Kreiten Straße 13, D-53115 Bonn, Germany Corresponding authors e-mail: or
T.Boehm and S.Hofer contributed equally to this work
| | - Susanne Ebner
- Laboratory for Molecular Biology, Gene Center, University of Munich, Feodor-Lynen-Straße 25, D-81377 Munich, GSF-National Research Center for Environment and Health, Marchioninistraße 25, D-81377 Munich, Germany, Department of Dermatology, University of Innsbruck, Anichstraße 35, A-6020 Innsbruck and Institute of Biochemistry, University of Innsbruck, Peter Mayerstraße 1, Innsbruck, Austria Present address: Institute of Molecular Physiology and Developmental Biology, Division of Cellular Biochemistry, University of Bonn, Karlrobert-Kreiten Straße 13, D-53115 Bonn, Germany Corresponding authors e-mail: or
T.Boehm and S.Hofer contributed equally to this work
| | - Lennart Ivarsson
- Laboratory for Molecular Biology, Gene Center, University of Munich, Feodor-Lynen-Straße 25, D-81377 Munich, GSF-National Research Center for Environment and Health, Marchioninistraße 25, D-81377 Munich, Germany, Department of Dermatology, University of Innsbruck, Anichstraße 35, A-6020 Innsbruck and Institute of Biochemistry, University of Innsbruck, Peter Mayerstraße 1, Innsbruck, Austria Present address: Institute of Molecular Physiology and Developmental Biology, Division of Cellular Biochemistry, University of Bonn, Karlrobert-Kreiten Straße 13, D-53115 Bonn, Germany Corresponding authors e-mail: or
T.Boehm and S.Hofer contributed equally to this work
| | - Rainer Schneider
- Laboratory for Molecular Biology, Gene Center, University of Munich, Feodor-Lynen-Straße 25, D-81377 Munich, GSF-National Research Center for Environment and Health, Marchioninistraße 25, D-81377 Munich, Germany, Department of Dermatology, University of Innsbruck, Anichstraße 35, A-6020 Innsbruck and Institute of Biochemistry, University of Innsbruck, Peter Mayerstraße 1, Innsbruck, Austria Present address: Institute of Molecular Physiology and Developmental Biology, Division of Cellular Biochemistry, University of Bonn, Karlrobert-Kreiten Straße 13, D-53115 Bonn, Germany Corresponding authors e-mail: or
T.Boehm and S.Hofer contributed equally to this work
| | - Elisabeth Kremmer
- Laboratory for Molecular Biology, Gene Center, University of Munich, Feodor-Lynen-Straße 25, D-81377 Munich, GSF-National Research Center for Environment and Health, Marchioninistraße 25, D-81377 Munich, Germany, Department of Dermatology, University of Innsbruck, Anichstraße 35, A-6020 Innsbruck and Institute of Biochemistry, University of Innsbruck, Peter Mayerstraße 1, Innsbruck, Austria Present address: Institute of Molecular Physiology and Developmental Biology, Division of Cellular Biochemistry, University of Bonn, Karlrobert-Kreiten Straße 13, D-53115 Bonn, Germany Corresponding authors e-mail: or
T.Boehm and S.Hofer contributed equally to this work
| | - Christine Heufler
- Laboratory for Molecular Biology, Gene Center, University of Munich, Feodor-Lynen-Straße 25, D-81377 Munich, GSF-National Research Center for Environment and Health, Marchioninistraße 25, D-81377 Munich, Germany, Department of Dermatology, University of Innsbruck, Anichstraße 35, A-6020 Innsbruck and Institute of Biochemistry, University of Innsbruck, Peter Mayerstraße 1, Innsbruck, Austria Present address: Institute of Molecular Physiology and Developmental Biology, Division of Cellular Biochemistry, University of Bonn, Karlrobert-Kreiten Straße 13, D-53115 Bonn, Germany Corresponding authors e-mail: or
T.Boehm and S.Hofer contributed equally to this work
| | - Waldemar Kolanus
- Laboratory for Molecular Biology, Gene Center, University of Munich, Feodor-Lynen-Straße 25, D-81377 Munich, GSF-National Research Center for Environment and Health, Marchioninistraße 25, D-81377 Munich, Germany, Department of Dermatology, University of Innsbruck, Anichstraße 35, A-6020 Innsbruck and Institute of Biochemistry, University of Innsbruck, Peter Mayerstraße 1, Innsbruck, Austria Present address: Institute of Molecular Physiology and Developmental Biology, Division of Cellular Biochemistry, University of Bonn, Karlrobert-Kreiten Straße 13, D-53115 Bonn, Germany Corresponding authors e-mail: or
T.Boehm and S.Hofer contributed equally to this work
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