1
|
Pernier J, Santos MCD, Souissi M, Joly A, Narassimprakash H, Rossier O, Giannone G, Helfer E, Sengupta K, Clainche CL. Talin and kindlin cooperate to control the density of integrin clusters. J Cell Sci 2023; 136:307144. [PMID: 37083041 DOI: 10.1242/jcs.260746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Accepted: 03/03/2023] [Indexed: 04/22/2023] Open
Abstract
Focal adhesions are composed of transmembrane integrins, linking the extracellular matrix to the actomyosin cytoskeleton, via cytoplasmic proteins. Adhesion depends on the activation of integrins. Talin and kindlin proteins are intracellular activators of integrins that bind to β-integrin cytoplasmic tails. Integrin activation and clustering through extracellular ligands guide the organization of adhesion complexes. However, the roles of talin and kindlin in this process are poorly understood. To determine the contribution of talin, kindlin, lipids and actomyosin in integrin clustering, we used a biomimetic in vitro system, made of giant unilamellar vesicles, containing transmembrane integrins (herein αIIbβ3), with purified talin (talin-1), kindlin (kindlin-2, also known as FERMT2) and actomyosin. Here, we show that talin and kindlin individually have the ability to cluster integrins. Talin and kindlin synergize to induce the formation of larger integrin clusters containing the three proteins. Comparison of protein density reveals that kindlin increases talin and integrin density, whereas talin does not affect kindlin and integrin density. Finally, kindlin increases integrin-talin-actomyosin coupling. Our study unambiguously demonstrates how kindlin and talin cooperate to induce integrin clustering, which is a major parameter for cell adhesion.
Collapse
Affiliation(s)
- Julien Pernier
- Université Paris-Saclay, CEA, CNRS, Institute for Integrative Biology of the Cell (I2BC), 91198, Gif-sur-Yvette, France
| | - Marcelina Cardoso Dos Santos
- Université Paris-Saclay, CEA, CNRS, Institute for Integrative Biology of the Cell (I2BC), 91198, Gif-sur-Yvette, France
| | - Mariem Souissi
- Aix Marseille Univ, CNRS, CINAM, Turing Centre for Living Systems, Marseille, France
| | - Adrien Joly
- Université de Bordeaux, CNRS, Interdisciplinary Institute for Neuroscience, IINS, UMR 5297, F-33000 Bordeaux, France
| | - Hemalatha Narassimprakash
- Université Paris-Saclay, CEA, CNRS, Institute for Integrative Biology of the Cell (I2BC), 91198, Gif-sur-Yvette, France
| | - Olivier Rossier
- Université de Bordeaux, CNRS, Interdisciplinary Institute for Neuroscience, IINS, UMR 5297, F-33000 Bordeaux, France
| | - Grégory Giannone
- Université de Bordeaux, CNRS, Interdisciplinary Institute for Neuroscience, IINS, UMR 5297, F-33000 Bordeaux, France
| | - Emmanuèle Helfer
- Aix Marseille Univ, CNRS, CINAM, Turing Centre for Living Systems, Marseille, France
| | - Kheya Sengupta
- Aix Marseille Univ, CNRS, CINAM, Turing Centre for Living Systems, Marseille, France
| | - Christophe Le Clainche
- Université Paris-Saclay, CEA, CNRS, Institute for Integrative Biology of the Cell (I2BC), 91198, Gif-sur-Yvette, France
| |
Collapse
|
2
|
Gahmberg CG, Grönholm M, Madhavan S. Regulation of Dynamic Cell Adhesion by Integrin-Integrin Crosstalk. Cells 2022; 11:cells11101685. [PMID: 35626722 PMCID: PMC9140058 DOI: 10.3390/cells11101685] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 05/11/2022] [Accepted: 05/17/2022] [Indexed: 02/07/2023] Open
Abstract
Most cells express several integrins. The integrins are able to respond to various cellular functions and needs by modifying their own activation state, but in addition by their ability to regulate each other by activation or inhibition. This crosstalk or transdominant regulation is strictly controlled. The mechanisms resulting in integrin crosstalk are incompletely understood, but they often involve intracellular signalling routes also used by other cell surface receptors. Several studies show that the integrin cytoplasmic tails bind to a number of cytoskeletal and adaptor molecules in a regulated manner. Recent work has shown that phosphorylations of integrins and key intracellular molecules are of pivotal importance in integrin-cytoplasmic interactions, and these in turn affect integrin activity and crosstalk. The integrin β-chains play a central role in regulating crosstalk. In addition to Integrin-integrin crosstalk, crosstalk may also occur between integrins and related receptors, including other adhesion receptors, growth factor and SARS-CoV-2 receptors.
Collapse
Affiliation(s)
- Carl G. Gahmberg
- Molecular and Integrative Biosciences Research Program, Faculty of Biological and Environmental Sciences, University of Helsinki, Viikinkaari 9 C, 00014 Helsinki, Finland; (M.G.); (S.M.)
- Correspondence: ; Tel.: +358-50-539-9439
| | - Mikaela Grönholm
- Molecular and Integrative Biosciences Research Program, Faculty of Biological and Environmental Sciences, University of Helsinki, Viikinkaari 9 C, 00014 Helsinki, Finland; (M.G.); (S.M.)
- Drug Research Program, Faculty of Pharmacy, University of Helsinki, Viikinkaari 9 C, 00014 Helsinki, Finland
| | - Sudarrshan Madhavan
- Molecular and Integrative Biosciences Research Program, Faculty of Biological and Environmental Sciences, University of Helsinki, Viikinkaari 9 C, 00014 Helsinki, Finland; (M.G.); (S.M.)
| |
Collapse
|
3
|
Lamrani L, Adam F, Soukaseum C, Denis CV, Raslova H, Rosa J, Bryckaert M. New insights into regulation of αIIbβ3 integrin signaling by filamin A. Res Pract Thromb Haemost 2022; 6:e12672. [PMID: 35316942 PMCID: PMC8924993 DOI: 10.1002/rth2.12672] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 12/29/2021] [Accepted: 01/05/2022] [Indexed: 12/14/2022] Open
Abstract
Background Filamin (FLN) regulates many cell functions through its scaffolding activity cross‐linking cytoskeleton and integrins. FLN was shown to inhibit integrin activity, but the exact mechanism remains unclear. Objectives The aim of this study was to evaluate the role of filamin A (FLNa) subdomains on the regulation of integrin αIIbβ3 signaling. Methods Three FLNa deletion mutants were overexpressed in the erythro‐megakaryocytic leukemic cell line HEL: Del1, which lacks the N‐terminal CH1‐CH2 domains mediating the FLNa‐actin interaction; Del2, lacking the Ig‐like repeat 21, which mediates the FLNa‐β3 interaction; and Del3, lacking the C‐terminal Ig repeat 24, responsible for FLNa dimerization and interaction with the small Rho guanosine triphosphatase involved in actin cytoskeleton reorganisation. Fibrinogen binding to HEL cells in suspension and talin‐β3 proximity in cells adherent to immobilized fibrinogen were assessed before and after αIIbβ3 activation by the protein kinase C agonist phorbol 12‐myristate 13‐acetate. Results Our results show that FLNa‐actin and FLNa‐β3 interactions negatively regulate αIIbβ3 activation. Moreover, FLNa‐actin interaction represses Rac activation, contributing to the negative regulation of αIIbβ3 activation. In contrast, the FLNa dimerization domain, which maintains Rho inactive, was found to negatively regulate αIIbβ3 outside‐in signaling. Conclusion We conclude that FLNa negatively controls αIIbβ3 activation by regulating actin polymerization and restraining activation of Rac, as well as outside‐in signaling by repressing Rho.
Collapse
Affiliation(s)
- Lamia Lamrani
- HITh UMR_S1176 Institut National de la Santé et de la Recherche Médicale Université Paris‐Saclay Le Kremlin‐Bicêtre France
| | - Frédéric Adam
- HITh UMR_S1176 Institut National de la Santé et de la Recherche Médicale Université Paris‐Saclay Le Kremlin‐Bicêtre France
| | - Christelle Soukaseum
- HITh UMR_S1176 Institut National de la Santé et de la Recherche Médicale Université Paris‐Saclay Le Kremlin‐Bicêtre France
| | - Cécile V. Denis
- HITh UMR_S1176 Institut National de la Santé et de la Recherche Médicale Université Paris‐Saclay Le Kremlin‐Bicêtre France
| | - Hana Raslova
- UMR_S1170 Institut National de la Santé et de la Recherche Médicale Université Paris‐Sud Université Paris‐Saclay Gustave Roussy Cancer Campus Equipe Labellisée Ligue Nationale Contre le Cancer Villejuif France
| | - Jean‐Philippe Rosa
- HITh UMR_S1176 Institut National de la Santé et de la Recherche Médicale Université Paris‐Saclay Le Kremlin‐Bicêtre France
| | - Marijke Bryckaert
- HITh UMR_S1176 Institut National de la Santé et de la Recherche Médicale Université Paris‐Saclay Le Kremlin‐Bicêtre France
| |
Collapse
|
4
|
Phosphorylation of Kindlins and the Control of Integrin Function. Cells 2021; 10:cells10040825. [PMID: 33916922 PMCID: PMC8067640 DOI: 10.3390/cells10040825] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 03/31/2021] [Accepted: 04/02/2021] [Indexed: 12/17/2022] Open
Abstract
Integrins serve as conduits for the transmission of information between cells and their extracellular environment. Signaling across integrins is bidirectional, transducing both inside-out and outside-signaling. Integrin activation, a transition from a low affinity/avidity state to a high affinity/avidity state for cognate ligands, is an outcome of inside-signaling. Such activation is particularly important for the recognition of soluble ligands by blood cells but also influences cell-cell and cell-matrix interactions. Integrin activation depends on a complex series of interactions, which both accelerate and inhibit their interconversion from the low to the high affinity/avidity state. There are three components regarded as being most proximately involved in integrin activation: the integrin cytoplasmic tails, talins and kindlins. The participation of each of these molecules in integrin activation is highly regulated by post-translation modifications. The importance of targeted phosphorylation of integrin cytoplasmic tails and talins in integrin activation is well-established, but much less is known about the role of post-translational modification of kindlins. The kindlins, a three-member family of 4.1-ezrin-radixin-moesin (FERM)-domain proteins in mammals, bind directly to the cytoplasmic tails of integrin beta subunits. This commentary provides a synopsis of the emerging evidence for the role of kindlin phosphorylation in integrin regulation.
Collapse
|
5
|
The integrin-linked kinase is required for chemokine-triggered high-affinity conformation of the neutrophil β2-integrin LFA-1. Blood 2021; 136:2200-2205. [PMID: 32730588 DOI: 10.1182/blood.2020004948] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Accepted: 07/11/2020] [Indexed: 01/13/2023] Open
Abstract
Neutrophil adhesion and extravasation into tissue at sites of injury or infection depend on binding of the integrin lymphocyte function-associated antigen 1 (LFA-1) to ICAM-1 expressed on activated endothelial cells. The activation-dependent conformational change of LFA-1 to the high-affinity conformation (H+) requires kindlin-3 binding to the β2-integrin cytoplasmic domain. Here we show that genetic deletion of the known kindlin interactor integrin-linked kinase (ILK) impaired neutrophil adhesion and extravasation in the cremaster muscle and in a clinically relevant model of renal ischemia reperfusion injury. Using in vitro microfluidic adhesion chambers and conformation-specific antibodies, we show that knockdown of ILK in HL-60 cells reduced the conformational change of β2-integrins to the H+ conformation. Mechanistically, we found that ILK was required for protein kinase C (PKC) membrane targeting and chemokine-induced upregulation of its kinase activity. Moreover, PKC-α deficiency also resulted in impaired leukocyte adhesion in bone marrow chimeric mice. Mass spectrometric and western blot analyses revealed stimulation- and ILK-dependent phosphorylation of kindlin-3 upon activation. In summary, our data indicate an important role of ILK in kindlin-3-dependent conformational activation of LFA-1.
Collapse
|
6
|
Plow EF, Pluskota E, Bialkowska K. Kindlins as modulators of breast cancer progression. JOURNAL OF BREAST CANCER RESEARCH 2021; 1:20-29. [PMID: 35936112 PMCID: PMC9352049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Kindlin-1 (K1, FERMT1), Kindlin-2 (K2, FERMT2), and Kindlin-3 (K3, FERMT3) are the three members of the kindlin family of adapter proteins found in mammals. One or more kindlins are found in most cell types, K1 primarily in epithelial cells, K3 in primarily hematopoietic cells and also endothelial cells, and K2 is very broadly distributed. The kindlins consist primarily of a 4.1-erzin-radixin-moiesin (FERM) domain, which is transected by a lipid-binding plextrin-homology (PH) domain. Deficiencies of each kindlin in mice and/ or humans have profound pathogenic consequences. The most well-established function of kindlins depends on their ability to participate in the activat integrin adhesion receptors. This function depends on the binding of each kindlin to the beta subunit of integrins where it cooperates with talin to enhance avidity of interactions with cognate extracellular matrix ligands. Deficiencies of many different integrins are lethal, are critical for normal development of mammary tissue, and excessive expression and/or activation of certain integrins are associated with progression and metastasis of breast cancer. However, via its interaction with many other intracellular proteins, kindlins can influence numerous cellular responses. Changes in expression of each of the three kindlins have been reported in association with breast cancer, with several studies indicating that kindlins are among the most upregulated genes in breast cancer. The association of abnormal functions of K2 with breast cancer is particularly extensive with many reports indicating that it is a major driver of breast cancer via its promotion of cancer cell proliferation, survival, adhesion, migration, invasion, the epithelial-to-mesenchymal transition and its influence on macrophage recruitment and phenotype. These associations suggest that the kindlins and their functions represent an intriguing therapeutic target for exploration of breast cancer therapy.
Collapse
|
7
|
Zhu L, Plow EF, Qin J. Initiation of focal adhesion assembly by talin and kindlin: A dynamic view. Protein Sci 2020; 30:531-542. [PMID: 33336515 DOI: 10.1002/pro.4014] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 12/07/2020] [Accepted: 12/08/2020] [Indexed: 12/15/2022]
Abstract
Focal adhesions (FAs) are integrin-containing protein complexes regulated by a network of hundreds of protein-protein interactions. They are formed in a spatiotemporal manner upon the activation of integrin transmembrane receptors, which is crucial to trigger cell adhesion and many other cellular processes including cell migration, spreading and proliferation. Despite decades of studies, a detailed molecular level understanding on how FAs are organized and function is lacking due to their highly complex and dynamic nature. However, advances have been made on studying key integrin activators, talin and kindlin, and their associated proteins, which are major components of nascent FAs critical for initiating the assembly of mature FAs. This review will discuss the structural and functional findings of talin and kindlin and their immediate interaction network, which will shed light upon the architecture of nascent FAs and how they act as seeds for FA assembly to dynamically regulate diverse adhesion-dependent physiological and pathological responses.
Collapse
Affiliation(s)
- Liang Zhu
- Department of Cardiovascular & Metabolic Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Edward F Plow
- Department of Cardiovascular & Metabolic Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Jun Qin
- Department of Cardiovascular & Metabolic Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, USA
| |
Collapse
|
8
|
Barrachina MN, Hermida-Nogueira L, Moran LA, Casas V, Hicks SM, Sueiro AM, Di Y, Andrews RK, Watson SP, Gardiner EE, Abian J, Carrascal M, Pardo M, García Á. Phosphoproteomic Analysis of Platelets in Severe Obesity Uncovers Platelet Reactivity and Signaling Pathways Alterations. Arterioscler Thromb Vasc Biol 2020; 41:478-490. [PMID: 33147989 DOI: 10.1161/atvbaha.120.314485] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
OBJECTIVE Obesity is associated with a proinflammatory and prothrombotic state that supports atherosclerosis progression. The goal of this study was to gain insights into the phosphorylation events related to platelet reactivity in obesity and identify platelet biomarkers and altered activation pathways in this clinical condition. Approach and Results: We performed a comparative phosphoproteomic analysis of resting platelets from obese patients and their age- and gender-matched lean controls. The phosphoproteomic data were validated by mechanistic, functional, and biochemical assays. We identified 220 differentially regulated phosphopeptides, from at least 175 proteins; interestingly, all were up-regulated in obesity. Most of the altered phosphoproteins are involved in SFKs (Src-family kinases)-related signaling pathways, cytoskeleton reorganization, and vesicle transport, some of them validated by targeted mass spectrometry. To confirm platelet dysfunction, flow cytometry assays were performed in whole blood indicating higher surface levels of GP (glycoprotein) VI and CLEC (C-type lectin-like receptor) 2 in platelets from obese patients correlating positively with body mass index. Receiver operator characteristics curves analysis suggested a much higher sensitivity for GPVI to discriminate between obese and lean individuals. Indeed, we also found that obese platelets displayed more adhesion to collagen-coated plates. In line with the above data, soluble GPVI levels-indicative of higher GPVI signaling activation-were almost double in plasma from obese patients. CONCLUSIONS Our results provide novel information on platelet phosphorylation changes related to obesity, revealing the impact of this chronic pathology on platelet reactivity and pointing towards the main signaling pathways dysregulated.
Collapse
Affiliation(s)
- María N Barrachina
- Platelet Proteomics Group, Center for Research in Molecular Medicine and Chronic Diseases (CIMUS), Universidade Santiago de Compostela (M.N.B., L.H.-N., L.A.M., Á.G.).,Instituto de Investigación Sanitaria de Santiago (IDIS), Santiago de Compostela, Spain (M.N.B., L.H.-N., L.A.M., Á.G.)
| | - Lidia Hermida-Nogueira
- Platelet Proteomics Group, Center for Research in Molecular Medicine and Chronic Diseases (CIMUS), Universidade Santiago de Compostela (M.N.B., L.H.-N., L.A.M., Á.G.).,Instituto de Investigación Sanitaria de Santiago (IDIS), Santiago de Compostela, Spain (M.N.B., L.H.-N., L.A.M., Á.G.)
| | - Luis A Moran
- Platelet Proteomics Group, Center for Research in Molecular Medicine and Chronic Diseases (CIMUS), Universidade Santiago de Compostela (M.N.B., L.H.-N., L.A.M., Á.G.).,Instituto de Investigación Sanitaria de Santiago (IDIS), Santiago de Compostela, Spain (M.N.B., L.H.-N., L.A.M., Á.G.)
| | - Vanessa Casas
- CSIC/UAB Proteomics Laboratory, IIBB-CSIC-IDIBAPS, Barcelona, Spain (V.C., J.A., M.C.)
| | - Sarah M Hicks
- ACRF Department Cancer Biology and Therapeutics, John Curtin School of Medical Research, The Australian National University, Canberra, Australia (S.M.H., R.K.A., E.E.G.)
| | - Aurelio M Sueiro
- Grupo de Endocrinología Molecular y Celular, Instituto de Investigación Sanitaria de Santiago (IDIS), Servicio de Endocrinología, Xerencia de Xestión Integrada de Santiago (XXS), Santiago de Compostela, Spain (A.M.S.)
| | - Ying Di
- Institute of Cardiovascular Sciences, College of Medical and Dental Sciences, University of Birmingham, United Kingdom (Y.D., S.P.W.)
| | - Robert K Andrews
- ACRF Department Cancer Biology and Therapeutics, John Curtin School of Medical Research, The Australian National University, Canberra, Australia (S.M.H., R.K.A., E.E.G.)
| | - Steve P Watson
- Institute of Cardiovascular Sciences, College of Medical and Dental Sciences, University of Birmingham, United Kingdom (Y.D., S.P.W.)
| | - Elizabeth E Gardiner
- ACRF Department Cancer Biology and Therapeutics, John Curtin School of Medical Research, The Australian National University, Canberra, Australia (S.M.H., R.K.A., E.E.G.)
| | - Joaquin Abian
- CSIC/UAB Proteomics Laboratory, IIBB-CSIC-IDIBAPS, Barcelona, Spain (V.C., J.A., M.C.)
| | - Montserrat Carrascal
- CSIC/UAB Proteomics Laboratory, IIBB-CSIC-IDIBAPS, Barcelona, Spain (V.C., J.A., M.C.)
| | - María Pardo
- Grupo Obesidómica, CIBEROBN de Fisiopatología de Obesidad y Nutrición, and Instituto de Investigación Sanitaria de Santiago (IDIS), Xerencia de Xestión Integrada de Santiago (XXS), Santiago de Compostela, Spain (M.P.)
| | - Ángel García
- Platelet Proteomics Group, Center for Research in Molecular Medicine and Chronic Diseases (CIMUS), Universidade Santiago de Compostela (M.N.B., L.H.-N., L.A.M., Á.G.).,Instituto de Investigación Sanitaria de Santiago (IDIS), Santiago de Compostela, Spain (M.N.B., L.H.-N., L.A.M., Á.G.)
| |
Collapse
|
9
|
Bu W, Levitskaya Z, Loh ZY, Jin S, Basu S, Ero R, Yan X, Wang M, Ngan SFC, Sze SK, Tan SM, Gao YG. Structural basis of human full-length kindlin-3 homotrimer in an auto-inhibited state. PLoS Biol 2020; 18:e3000755. [PMID: 32644996 PMCID: PMC7373317 DOI: 10.1371/journal.pbio.3000755] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Revised: 07/21/2020] [Accepted: 06/22/2020] [Indexed: 01/07/2023] Open
Abstract
Kindlin-1, -2, and -3 directly bind integrin β cytoplasmic tails to regulate integrin activation and signaling. Despite their functional significance and links to several diseases, structural information on full-length kindlin proteins remains unknown. Here, we report the crystal structure of human full-length kindlin-3, which reveals a novel homotrimer state. Unlike kindlin-3 monomer, which is the major population in insect and mammalian cell expression systems, kindlin-3 trimer does not bind integrin β cytoplasmic tail as the integrin-binding pocket in the F3 subdomain of 1 protomer is occluded by the pleckstrin homology (PH) domain of another protomer, suggesting that kindlin-3 is auto-inhibited upon trimer formation. This is also supported by functional assays in which kindlin-3 knockout K562 erythroleukemia cells reconstituted with the mutant kindlin-3 containing trimer-disrupting mutations exhibited an increase in integrin-mediated adhesion and spreading on fibronectin compared with those reconstituted with wild-type kindlin-3. Taken together, our findings reveal a novel mechanism of kindlin auto-inhibition that involves its homotrimer formation. The crystal structure of a human full-length kindlin protein (kindlin-3) reveals a homotrimeric complex; together with in vitro and in vivo data, this suggests an auto-inhibition model for kindlins in integrin activation.
Collapse
Affiliation(s)
- Wenting Bu
- School of Biological Sciences, Nanyang Technological University, Singapore, Singapore
| | - Zarina Levitskaya
- School of Biological Sciences, Nanyang Technological University, Singapore, Singapore
| | - Zhi Yang Loh
- School of Biological Sciences, Nanyang Technological University, Singapore, Singapore
| | - Shengyang Jin
- School of Biological Sciences, Nanyang Technological University, Singapore, Singapore
- NTU Institute of Structural Biology, Nanyang Technological University, Singapore, Singapore
| | - Shibom Basu
- Swiss Light Source, Paul Scherrer Institute, Villigen, Switzerland
| | - Rya Ero
- School of Biological Sciences, Nanyang Technological University, Singapore, Singapore
| | - Xinfu Yan
- School of Biological Sciences, Nanyang Technological University, Singapore, Singapore
| | - Meitian Wang
- Swiss Light Source, Paul Scherrer Institute, Villigen, Switzerland
| | - So Fong Cam Ngan
- School of Biological Sciences, Nanyang Technological University, Singapore, Singapore
| | - Siu Kwan Sze
- School of Biological Sciences, Nanyang Technological University, Singapore, Singapore
| | - Suet-Mien Tan
- School of Biological Sciences, Nanyang Technological University, Singapore, Singapore
- * E-mail: (YGG); (SMT)
| | - Yong-Gui Gao
- School of Biological Sciences, Nanyang Technological University, Singapore, Singapore
- NTU Institute of Structural Biology, Nanyang Technological University, Singapore, Singapore
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research, Singapore, Singapore
- * E-mail: (YGG); (SMT)
| |
Collapse
|
10
|
Bialkowska K, Sossey-Alaoui K, Pluskota E, Izem L, Qin J, Plow EF. Site-specific phosphorylation regulates the functions of kindlin-3 in a variety of cells. Life Sci Alliance 2020; 3:3/3/e201900594. [PMID: 32024667 PMCID: PMC7010036 DOI: 10.26508/lsa.201900594] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 01/22/2020] [Accepted: 01/23/2020] [Indexed: 12/12/2022] Open
Abstract
Studies of isolated cells, mice, and humans have demonstrated the vital role of the FERM domain protein kindlin-3 in integrin activation in certain hematopoietic and non-hematopoietic cells, consequent to binding to integrin β-subunits. To explore regulatory mechanisms, we developed a monoclonal antibody that selectively recognizes the phosphorylated form of Ser484 (pS484) in kindlin-3. Activation of platelets, HEL megakaryocytic-like cells and BT549 breast cancer cells led to enhanced expression of pS484 as assessed by immunofluorescence or Western blotting. In platelets, pS484 rose rapidly and transiently upon stimulation. When a mutant form of kindlin-3, T482S484/AA kindlin-3, was transduced into mouse megakaryocytes, it failed to support activation of integrin αIIbβ3, whereas wild-type kindlin-3 did. In MDA-MB231 breast cancer cells, expression of T482S484/AA kindlin-3 suppressed cell spreading, migration, invasion, and VEGF production. Wild-type kindlin-3 expressing cells markedly increased tumor growth in vivo, whereas T482S484/AA kindlin-3 significantly blunted tumor progression. Thus, our data establish that a unique phosphorylation event in kindlin-3 regulates its cellular functions.
Collapse
Affiliation(s)
- Katarzyna Bialkowska
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute Cleveland Clinic, Cleveland, OH, USA
| | - Khalid Sossey-Alaoui
- Department of Molecular Medicine, School of Medicine, Case Western Reserve University, Cleveland, OH, USA
| | - Elzbieta Pluskota
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute Cleveland Clinic, Cleveland, OH, USA
| | - Lahoucine Izem
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute Cleveland Clinic, Cleveland, OH, USA
| | - Jun Qin
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute Cleveland Clinic, Cleveland, OH, USA
| | - Edward F Plow
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute Cleveland Clinic, Cleveland, OH, USA
| |
Collapse
|
11
|
Regulation of cell adhesion: a collaborative effort of integrins, their ligands, cytoplasmic actors, and phosphorylation. Q Rev Biophys 2019; 52:e10. [PMID: 31709962 DOI: 10.1017/s0033583519000088] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Integrins are large heterodimeric type 1 membrane proteins expressed in all nucleated mammalian cells. Eighteen α-chains and eight β-chains can combine to form 24 different integrins. They are cell adhesion proteins, which bind to a large variety of cellular and extracellular ligands. Integrins are required for cell migration, hemostasis, translocation of cells out from the blood stream and further movement into tissues, but also for the immune response and tissue morphogenesis. Importantly, integrins are not usually active as such, but need activation to become adhesive. Integrins are activated by outside-in activation through integrin ligand binding, or by inside-out activation through intracellular signaling. An important question is how integrin activity is regulated, and this topic has recently drawn much attention. Changes in integrin affinity for ligand binding are due to allosteric structural alterations, but equally important are avidity changes due to integrin clustering in the plane of the plasma membrane. Recent studies have partially solved how integrin cell surface structures change during activation. The integrin cytoplasmic domains are relatively short, but by interacting with a variety of cytoplasmic proteins in a regulated manner, the integrins acquire a number of properties important not only for cell adhesion and movement, but also for cellular signaling. Recent work has shown that specific integrin phosphorylations play pivotal roles in the regulation of integrin activity. Our purpose in this review is to integrate the present knowledge to enable an understanding of how cell adhesion is dynamically regulated.
Collapse
|
12
|
Zhan J, Zhang H. Kindlins: Roles in development and cancer progression. Int J Biochem Cell Biol 2018; 98:93-103. [PMID: 29544897 DOI: 10.1016/j.biocel.2018.03.008] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2017] [Revised: 03/09/2018] [Accepted: 03/12/2018] [Indexed: 12/15/2022]
Abstract
The Kindlins are FERM domain proteins comprising three members (Kindlin-1, -2 and -3) which are evolutionarily conserved. Kindlins bind with β-integrin cytoplasmic tails and execute broad biological functions including directed cell migration, proliferation, differentiation and survival. In light of more and more evidence point to the importance of Kindlin family members in normal development and human diseases especially in cancers, we aim to portrait the profile of Kindlins in the regulation of embryonic development and cancer progression. We first summarize all the known binding proteins for individual member of Kindlin family. We then outline the Kindlin-regulated signaling pathways including Wnt/β-catenin, TGFβ, EGFR, and Hedgehog signalings. Furthermore, we descript the pivotal role of Kindlins in embryonic development in detail with notions that Kindlin-1 is highly expressed in endo/ectodermal originated tissues, Kindlin-2 is highly expressed in mesoderm-derived tissues and Kindlin-3 is highly expressed in mesoderm- and ectoderm-derived tissues. Deregulation of Kindlins is generally reported in cancers from different organs. We also briefly descript the role of Kindlins in other diseases. Finally, we update the recent understanding of how Kindlins are regulated and modified as well as the degradation mechanism of Kindlins, respectively.
Collapse
Affiliation(s)
- Jun Zhan
- Peking University Health Science Center, Department of Anatomy, Histology and Embryology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), and State Key Laboratory of Natural and Biomimetic Drugs, Beijing 100191, China
| | - Hongquan Zhang
- Peking University Health Science Center, Department of Anatomy, Histology and Embryology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), and State Key Laboratory of Natural and Biomimetic Drugs, Beijing 100191, China.
| |
Collapse
|
13
|
Gao J, Huang M, Lai J, Mao K, Sun P, Cao Z, Hu Y, Zhang Y, Schulte ML, Jin C, Wang J, White GC, Xu Z, Ma YQ. Kindlin supports platelet integrin αIIbβ3 activation by interacting with paxillin. J Cell Sci 2017; 130:3764-3775. [PMID: 28954813 DOI: 10.1242/jcs.205641] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Accepted: 09/18/2017] [Indexed: 12/30/2022] Open
Abstract
Kindlins play an important role in supporting integrin activation by cooperating with talin; however, the mechanistic details remain unclear. Here, we show that kindlins interacted directly with paxillin and that this interaction could support integrin αIIbβ3 activation. An exposed loop in the N-terminal F0 subdomain of kindlins was involved in mediating the interaction. Disruption of kindlin binding to paxillin by structure-based mutations significantly impaired the function of kindlins in supporting integrin αIIbβ3 activation. Both kindlin and talin were required for paxillin to enhance integrin activation. Interestingly, a direct interaction between paxillin and the talin head domain was also detectable. Mechanistically, paxillin, together with kindlin, was able to promote the binding of the talin head domain to integrin, suggesting that paxillin complexes with kindlin and talin to strengthen integrin activation. Specifically, we observed that crosstalk between kindlin-3 and the paxillin family in mouse platelets was involved in supporting integrin αIIbβ3 activation and in vivo platelet thrombus formation. Taken together, our findings uncover a novel mechanism by which kindlin supports integrin αIIbβ3 activation, which might be beneficial for developing safer anti-thrombotic therapies.
Collapse
Affiliation(s)
- Juan Gao
- Collaborative Research Program for Cell Adhesion Molecules, Shanghai University School of Life Sciences, Shanghai 200444, China
| | - Ming Huang
- Collaborative Research Program for Cell Adhesion Molecules, Shanghai University School of Life Sciences, Shanghai 200444, China
| | - Jingjing Lai
- Collaborative Research Program for Cell Adhesion Molecules, Shanghai University School of Life Sciences, Shanghai 200444, China
| | - Kaijun Mao
- Collaborative Research Program for Cell Adhesion Molecules, Shanghai University School of Life Sciences, Shanghai 200444, China
| | - Peisen Sun
- Collaborative Research Program for Cell Adhesion Molecules, Shanghai University School of Life Sciences, Shanghai 200444, China
| | - Zhongyuan Cao
- Collaborative Research Program for Cell Adhesion Molecules, Shanghai University School of Life Sciences, Shanghai 200444, China
| | - Youpei Hu
- Collaborative Research Program for Cell Adhesion Molecules, Shanghai University School of Life Sciences, Shanghai 200444, China
| | - Yingying Zhang
- Collaborative Research Program for Cell Adhesion Molecules, Shanghai University School of Life Sciences, Shanghai 200444, China
| | - Marie L Schulte
- Blood Research Institute, Blood Center of Wisconsin, Wisconsin, WI 53226, USA
| | - Chaozhi Jin
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences, Beijing 102206, China
| | - Jian Wang
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences, Beijing 102206, China
| | - Gilbert C White
- Blood Research Institute, Blood Center of Wisconsin, Wisconsin, WI 53226, USA.,Department of Biochemistry, Medical College of Milwaukee, Wisconsin, WI 53226, USA
| | - Zhen Xu
- Collaborative Research Program for Cell Adhesion Molecules, Shanghai University School of Life Sciences, Shanghai 200444, China .,Blood Research Institute, Blood Center of Wisconsin, Wisconsin, WI 53226, USA
| | - Yan-Qing Ma
- Collaborative Research Program for Cell Adhesion Molecules, Shanghai University School of Life Sciences, Shanghai 200444, China .,Blood Research Institute, Blood Center of Wisconsin, Wisconsin, WI 53226, USA.,Department of Biochemistry, Medical College of Milwaukee, Wisconsin, WI 53226, USA
| |
Collapse
|
14
|
Hirbawi J, Bialkowska K, Bledzka KM, Liu J, Fukuda K, Qin J, Plow EF. The extreme C-terminal region of kindlin-2 is critical to its regulation of integrin activation. J Biol Chem 2017; 292:14258-14269. [PMID: 28652408 DOI: 10.1074/jbc.m117.776195] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Revised: 06/17/2017] [Indexed: 12/25/2022] Open
Abstract
Kindlin-2 (K2), a 4.1R-ezrin-radixin-moesin (FERM) domain adaptor protein, mediates numerous cellular responses, including integrin activation. The C-terminal 15-amino acid sequence of K2 is remarkably conserved across species but is absent in canonical FERM proteins, including talin. In CHO cells expressing integrin αIIbβ3, co-expression of K2 with talin head domain resulted in robust integrin activation, but this co-activation was lost after deletion of as few as seven amino acids from the K2 C terminus. This dependence on the C terminus was also observed in activation of endogenous αIIbβ3 in human erythroleukemia (HEL) cells and β1 integrin activation in macrophage-like RAW264.1 cells. Kindlin-1 (K1) exhibited a similar dependence on its C terminus for integrin activation. Expression of the K2 C terminus as an extension of membrane-anchored P-selectin glycoprotein ligand-1 (PSGL-1) inhibited integrin-dependent cell spreading. Deletion of the K2 C terminus did not affect its binding to the integrin β3 cytoplasmic tail, but combined biochemical and NMR analyses indicated that it can insert into the F2 subdomain. We suggest that this insertion determines the topology of the K2 FERM domain, and its deletion may affect the positioning of the membrane-binding functions of the F2 subdomain and the integrin-binding properties of its F3 subdomain. Free C-terminal peptide can still bind to K2 and displace the endogenous K2 C terminus but may not restore the conformation needed for integrin co-activation. Our findings indicate that the extreme C terminus of K2 is essential for integrin co-activation and highlight the importance of an atypical architecture of the K2 FERM domain in regulating integrin activation.
Collapse
Affiliation(s)
- Jamila Hirbawi
- From the Department of Molecular Cardiology, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio 44195
| | - Katarzyna Bialkowska
- From the Department of Molecular Cardiology, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio 44195
| | - Kamila M Bledzka
- From the Department of Molecular Cardiology, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio 44195
| | - Jianmin Liu
- From the Department of Molecular Cardiology, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio 44195
| | - Koichi Fukuda
- From the Department of Molecular Cardiology, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio 44195
| | - Jun Qin
- From the Department of Molecular Cardiology, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio 44195
| | - Edward F Plow
- From the Department of Molecular Cardiology, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio 44195.
| |
Collapse
|
15
|
Berrou E, Adam F, Lebret M, Planche V, Fergelot P, Issertial O, Coupry I, Bordet JC, Nurden P, Bonneau D, Colin E, Goizet C, Rosa JP, Bryckaert M. Gain-of-Function Mutation in Filamin A Potentiates Platelet Integrin α IIbβ 3 Activation. Arterioscler Thromb Vasc Biol 2017; 37:1087-1097. [PMID: 28428218 DOI: 10.1161/atvbaha.117.309337] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2016] [Accepted: 03/31/2017] [Indexed: 12/20/2022]
Abstract
OBJECTIVE Dominant mutations of the X-linked filamin A (FLNA) gene are responsible for filaminopathies A, which are rare disorders including brain periventricular nodular heterotopia, congenital intestinal pseudo-obstruction, cardiac valves or skeleton malformations, and often macrothrombocytopenia. APPROACH AND RESULTS We studied a male patient with periventricular nodular heterotopia and congenital intestinal pseudo-obstruction, his unique X-linked FLNA allele carrying a stop codon mutation resulting in a 100-amino acid-long FLNa C-terminal extension (NP_001447.2: p.Ter2648SerextTer101). Platelet counts were normal, with few enlarged platelets. FLNa was detectable in all platelets but at 30% of control levels. Surprisingly, all platelet functions were significantly upregulated, including platelet aggregation and secretion, as induced by ADP, collagen, or von Willebrand factor in the presence of ristocetin, as well as thrombus formation in blood flow on a collagen or on a von Willebrand factor matrix. Most importantly, patient platelets stimulated with ADP exhibited a marked increase in αIIbβ3 integrin activation and a parallel increase in talin recruitment to β3, contrasting with normal Rap1 activation. These results are consistent with the mutant FLNa affecting the last step of αIIbβ3 activation. Overexpression of mutant FLNa in the HEL megakaryocytic cell line correlated with an increase (compared with wild-type FLNa) in PMA-induced fibrinogen binding to and in talin and kindlin-3 recruitment by αIIbβ3. CONCLUSIONS Altogether, our results are consistent with a less binding of mutant FLNa to β3 and the facilitated recruitment of talin by β3 on platelet stimulation, explaining the increased αIIbβ3 activation and the ensuing gain-of-platelet functions.
Collapse
Affiliation(s)
- Eliane Berrou
- From the INSERM UMR_S 1176, Université Paris-Sud, Université Paris-Saclay, Le Kremlin Bicêtre, France (E.B., F.A., M.L., V.P., O.I., J.-P.R., M.B.); INSERM UMR_S 1211, Université de Bordeaux, CHU Bordeaux UNIV EA 4576, Place Aurélie Raba-Léon, France (P.F., I.C., C.G.); CHU Bordeaux, Centre de Référence Anomalies du Développement Embryonnaire, Service de Génétique Médicale, Hôpital Pellegrin, Place Aurélie Raba-Léon, France (P.F., C.G.); Unité d'Hémostase Biologique, Hospices Civils de Lyon, CBE Bron, EA4609 and CIQLE-Lyon Bio Image, Université Lyon, France (J.-C.B.); Institut Hospitalo-Universitaire LIRYC PTIB, Hôpital Xavier Arnozan, av du Haut Lévêque, Pessac, France (P.N.); and Département de Biochimie et Génétique, INSERM UMR_S 1083 - CNRS 6214, CHU Angers, Angers, France (D.B., E.C.)
| | - Frédéric Adam
- From the INSERM UMR_S 1176, Université Paris-Sud, Université Paris-Saclay, Le Kremlin Bicêtre, France (E.B., F.A., M.L., V.P., O.I., J.-P.R., M.B.); INSERM UMR_S 1211, Université de Bordeaux, CHU Bordeaux UNIV EA 4576, Place Aurélie Raba-Léon, France (P.F., I.C., C.G.); CHU Bordeaux, Centre de Référence Anomalies du Développement Embryonnaire, Service de Génétique Médicale, Hôpital Pellegrin, Place Aurélie Raba-Léon, France (P.F., C.G.); Unité d'Hémostase Biologique, Hospices Civils de Lyon, CBE Bron, EA4609 and CIQLE-Lyon Bio Image, Université Lyon, France (J.-C.B.); Institut Hospitalo-Universitaire LIRYC PTIB, Hôpital Xavier Arnozan, av du Haut Lévêque, Pessac, France (P.N.); and Département de Biochimie et Génétique, INSERM UMR_S 1083 - CNRS 6214, CHU Angers, Angers, France (D.B., E.C.)
| | - Marilyne Lebret
- From the INSERM UMR_S 1176, Université Paris-Sud, Université Paris-Saclay, Le Kremlin Bicêtre, France (E.B., F.A., M.L., V.P., O.I., J.-P.R., M.B.); INSERM UMR_S 1211, Université de Bordeaux, CHU Bordeaux UNIV EA 4576, Place Aurélie Raba-Léon, France (P.F., I.C., C.G.); CHU Bordeaux, Centre de Référence Anomalies du Développement Embryonnaire, Service de Génétique Médicale, Hôpital Pellegrin, Place Aurélie Raba-Léon, France (P.F., C.G.); Unité d'Hémostase Biologique, Hospices Civils de Lyon, CBE Bron, EA4609 and CIQLE-Lyon Bio Image, Université Lyon, France (J.-C.B.); Institut Hospitalo-Universitaire LIRYC PTIB, Hôpital Xavier Arnozan, av du Haut Lévêque, Pessac, France (P.N.); and Département de Biochimie et Génétique, INSERM UMR_S 1083 - CNRS 6214, CHU Angers, Angers, France (D.B., E.C.)
| | - Virginie Planche
- From the INSERM UMR_S 1176, Université Paris-Sud, Université Paris-Saclay, Le Kremlin Bicêtre, France (E.B., F.A., M.L., V.P., O.I., J.-P.R., M.B.); INSERM UMR_S 1211, Université de Bordeaux, CHU Bordeaux UNIV EA 4576, Place Aurélie Raba-Léon, France (P.F., I.C., C.G.); CHU Bordeaux, Centre de Référence Anomalies du Développement Embryonnaire, Service de Génétique Médicale, Hôpital Pellegrin, Place Aurélie Raba-Léon, France (P.F., C.G.); Unité d'Hémostase Biologique, Hospices Civils de Lyon, CBE Bron, EA4609 and CIQLE-Lyon Bio Image, Université Lyon, France (J.-C.B.); Institut Hospitalo-Universitaire LIRYC PTIB, Hôpital Xavier Arnozan, av du Haut Lévêque, Pessac, France (P.N.); and Département de Biochimie et Génétique, INSERM UMR_S 1083 - CNRS 6214, CHU Angers, Angers, France (D.B., E.C.)
| | - Patricia Fergelot
- From the INSERM UMR_S 1176, Université Paris-Sud, Université Paris-Saclay, Le Kremlin Bicêtre, France (E.B., F.A., M.L., V.P., O.I., J.-P.R., M.B.); INSERM UMR_S 1211, Université de Bordeaux, CHU Bordeaux UNIV EA 4576, Place Aurélie Raba-Léon, France (P.F., I.C., C.G.); CHU Bordeaux, Centre de Référence Anomalies du Développement Embryonnaire, Service de Génétique Médicale, Hôpital Pellegrin, Place Aurélie Raba-Léon, France (P.F., C.G.); Unité d'Hémostase Biologique, Hospices Civils de Lyon, CBE Bron, EA4609 and CIQLE-Lyon Bio Image, Université Lyon, France (J.-C.B.); Institut Hospitalo-Universitaire LIRYC PTIB, Hôpital Xavier Arnozan, av du Haut Lévêque, Pessac, France (P.N.); and Département de Biochimie et Génétique, INSERM UMR_S 1083 - CNRS 6214, CHU Angers, Angers, France (D.B., E.C.)
| | - Odile Issertial
- From the INSERM UMR_S 1176, Université Paris-Sud, Université Paris-Saclay, Le Kremlin Bicêtre, France (E.B., F.A., M.L., V.P., O.I., J.-P.R., M.B.); INSERM UMR_S 1211, Université de Bordeaux, CHU Bordeaux UNIV EA 4576, Place Aurélie Raba-Léon, France (P.F., I.C., C.G.); CHU Bordeaux, Centre de Référence Anomalies du Développement Embryonnaire, Service de Génétique Médicale, Hôpital Pellegrin, Place Aurélie Raba-Léon, France (P.F., C.G.); Unité d'Hémostase Biologique, Hospices Civils de Lyon, CBE Bron, EA4609 and CIQLE-Lyon Bio Image, Université Lyon, France (J.-C.B.); Institut Hospitalo-Universitaire LIRYC PTIB, Hôpital Xavier Arnozan, av du Haut Lévêque, Pessac, France (P.N.); and Département de Biochimie et Génétique, INSERM UMR_S 1083 - CNRS 6214, CHU Angers, Angers, France (D.B., E.C.)
| | - Isabelle Coupry
- From the INSERM UMR_S 1176, Université Paris-Sud, Université Paris-Saclay, Le Kremlin Bicêtre, France (E.B., F.A., M.L., V.P., O.I., J.-P.R., M.B.); INSERM UMR_S 1211, Université de Bordeaux, CHU Bordeaux UNIV EA 4576, Place Aurélie Raba-Léon, France (P.F., I.C., C.G.); CHU Bordeaux, Centre de Référence Anomalies du Développement Embryonnaire, Service de Génétique Médicale, Hôpital Pellegrin, Place Aurélie Raba-Léon, France (P.F., C.G.); Unité d'Hémostase Biologique, Hospices Civils de Lyon, CBE Bron, EA4609 and CIQLE-Lyon Bio Image, Université Lyon, France (J.-C.B.); Institut Hospitalo-Universitaire LIRYC PTIB, Hôpital Xavier Arnozan, av du Haut Lévêque, Pessac, France (P.N.); and Département de Biochimie et Génétique, INSERM UMR_S 1083 - CNRS 6214, CHU Angers, Angers, France (D.B., E.C.)
| | - Jean-Claude Bordet
- From the INSERM UMR_S 1176, Université Paris-Sud, Université Paris-Saclay, Le Kremlin Bicêtre, France (E.B., F.A., M.L., V.P., O.I., J.-P.R., M.B.); INSERM UMR_S 1211, Université de Bordeaux, CHU Bordeaux UNIV EA 4576, Place Aurélie Raba-Léon, France (P.F., I.C., C.G.); CHU Bordeaux, Centre de Référence Anomalies du Développement Embryonnaire, Service de Génétique Médicale, Hôpital Pellegrin, Place Aurélie Raba-Léon, France (P.F., C.G.); Unité d'Hémostase Biologique, Hospices Civils de Lyon, CBE Bron, EA4609 and CIQLE-Lyon Bio Image, Université Lyon, France (J.-C.B.); Institut Hospitalo-Universitaire LIRYC PTIB, Hôpital Xavier Arnozan, av du Haut Lévêque, Pessac, France (P.N.); and Département de Biochimie et Génétique, INSERM UMR_S 1083 - CNRS 6214, CHU Angers, Angers, France (D.B., E.C.)
| | - Paquita Nurden
- From the INSERM UMR_S 1176, Université Paris-Sud, Université Paris-Saclay, Le Kremlin Bicêtre, France (E.B., F.A., M.L., V.P., O.I., J.-P.R., M.B.); INSERM UMR_S 1211, Université de Bordeaux, CHU Bordeaux UNIV EA 4576, Place Aurélie Raba-Léon, France (P.F., I.C., C.G.); CHU Bordeaux, Centre de Référence Anomalies du Développement Embryonnaire, Service de Génétique Médicale, Hôpital Pellegrin, Place Aurélie Raba-Léon, France (P.F., C.G.); Unité d'Hémostase Biologique, Hospices Civils de Lyon, CBE Bron, EA4609 and CIQLE-Lyon Bio Image, Université Lyon, France (J.-C.B.); Institut Hospitalo-Universitaire LIRYC PTIB, Hôpital Xavier Arnozan, av du Haut Lévêque, Pessac, France (P.N.); and Département de Biochimie et Génétique, INSERM UMR_S 1083 - CNRS 6214, CHU Angers, Angers, France (D.B., E.C.)
| | - Dominique Bonneau
- From the INSERM UMR_S 1176, Université Paris-Sud, Université Paris-Saclay, Le Kremlin Bicêtre, France (E.B., F.A., M.L., V.P., O.I., J.-P.R., M.B.); INSERM UMR_S 1211, Université de Bordeaux, CHU Bordeaux UNIV EA 4576, Place Aurélie Raba-Léon, France (P.F., I.C., C.G.); CHU Bordeaux, Centre de Référence Anomalies du Développement Embryonnaire, Service de Génétique Médicale, Hôpital Pellegrin, Place Aurélie Raba-Léon, France (P.F., C.G.); Unité d'Hémostase Biologique, Hospices Civils de Lyon, CBE Bron, EA4609 and CIQLE-Lyon Bio Image, Université Lyon, France (J.-C.B.); Institut Hospitalo-Universitaire LIRYC PTIB, Hôpital Xavier Arnozan, av du Haut Lévêque, Pessac, France (P.N.); and Département de Biochimie et Génétique, INSERM UMR_S 1083 - CNRS 6214, CHU Angers, Angers, France (D.B., E.C.)
| | - Estelle Colin
- From the INSERM UMR_S 1176, Université Paris-Sud, Université Paris-Saclay, Le Kremlin Bicêtre, France (E.B., F.A., M.L., V.P., O.I., J.-P.R., M.B.); INSERM UMR_S 1211, Université de Bordeaux, CHU Bordeaux UNIV EA 4576, Place Aurélie Raba-Léon, France (P.F., I.C., C.G.); CHU Bordeaux, Centre de Référence Anomalies du Développement Embryonnaire, Service de Génétique Médicale, Hôpital Pellegrin, Place Aurélie Raba-Léon, France (P.F., C.G.); Unité d'Hémostase Biologique, Hospices Civils de Lyon, CBE Bron, EA4609 and CIQLE-Lyon Bio Image, Université Lyon, France (J.-C.B.); Institut Hospitalo-Universitaire LIRYC PTIB, Hôpital Xavier Arnozan, av du Haut Lévêque, Pessac, France (P.N.); and Département de Biochimie et Génétique, INSERM UMR_S 1083 - CNRS 6214, CHU Angers, Angers, France (D.B., E.C.)
| | - Cyril Goizet
- From the INSERM UMR_S 1176, Université Paris-Sud, Université Paris-Saclay, Le Kremlin Bicêtre, France (E.B., F.A., M.L., V.P., O.I., J.-P.R., M.B.); INSERM UMR_S 1211, Université de Bordeaux, CHU Bordeaux UNIV EA 4576, Place Aurélie Raba-Léon, France (P.F., I.C., C.G.); CHU Bordeaux, Centre de Référence Anomalies du Développement Embryonnaire, Service de Génétique Médicale, Hôpital Pellegrin, Place Aurélie Raba-Léon, France (P.F., C.G.); Unité d'Hémostase Biologique, Hospices Civils de Lyon, CBE Bron, EA4609 and CIQLE-Lyon Bio Image, Université Lyon, France (J.-C.B.); Institut Hospitalo-Universitaire LIRYC PTIB, Hôpital Xavier Arnozan, av du Haut Lévêque, Pessac, France (P.N.); and Département de Biochimie et Génétique, INSERM UMR_S 1083 - CNRS 6214, CHU Angers, Angers, France (D.B., E.C.)
| | - Jean-Philippe Rosa
- From the INSERM UMR_S 1176, Université Paris-Sud, Université Paris-Saclay, Le Kremlin Bicêtre, France (E.B., F.A., M.L., V.P., O.I., J.-P.R., M.B.); INSERM UMR_S 1211, Université de Bordeaux, CHU Bordeaux UNIV EA 4576, Place Aurélie Raba-Léon, France (P.F., I.C., C.G.); CHU Bordeaux, Centre de Référence Anomalies du Développement Embryonnaire, Service de Génétique Médicale, Hôpital Pellegrin, Place Aurélie Raba-Léon, France (P.F., C.G.); Unité d'Hémostase Biologique, Hospices Civils de Lyon, CBE Bron, EA4609 and CIQLE-Lyon Bio Image, Université Lyon, France (J.-C.B.); Institut Hospitalo-Universitaire LIRYC PTIB, Hôpital Xavier Arnozan, av du Haut Lévêque, Pessac, France (P.N.); and Département de Biochimie et Génétique, INSERM UMR_S 1083 - CNRS 6214, CHU Angers, Angers, France (D.B., E.C.)
| | - Marijke Bryckaert
- From the INSERM UMR_S 1176, Université Paris-Sud, Université Paris-Saclay, Le Kremlin Bicêtre, France (E.B., F.A., M.L., V.P., O.I., J.-P.R., M.B.); INSERM UMR_S 1211, Université de Bordeaux, CHU Bordeaux UNIV EA 4576, Place Aurélie Raba-Léon, France (P.F., I.C., C.G.); CHU Bordeaux, Centre de Référence Anomalies du Développement Embryonnaire, Service de Génétique Médicale, Hôpital Pellegrin, Place Aurélie Raba-Léon, France (P.F., C.G.); Unité d'Hémostase Biologique, Hospices Civils de Lyon, CBE Bron, EA4609 and CIQLE-Lyon Bio Image, Université Lyon, France (J.-C.B.); Institut Hospitalo-Universitaire LIRYC PTIB, Hôpital Xavier Arnozan, av du Haut Lévêque, Pessac, France (P.N.); and Département de Biochimie et Génétique, INSERM UMR_S 1083 - CNRS 6214, CHU Angers, Angers, France (D.B., E.C.).
| |
Collapse
|
16
|
Abstract
Kindlins are 4.1-ezrin-ridixin-moesin (FERM) domain containing proteins. There are three kindlins in mammals, which share high sequence identity. Kindlin-1 is expressed primarily in epithelial cells, kindlin-2 is widely distributed and is particularly abundant in adherent cells, and kindlin-3 is expressed primarily in hematopoietic cells. These distributions are not exclusive; some cells express multiple kindlins, and transformed cells often exhibit aberrant expression, both in the isoforms and the levels of kindlins. Great interest in the kindlins has emerged from the recognition that they play major roles in controlling integrin function. In vitro studies, in vivo studies of mice deficient in kindlins, and studies of patients with genetic deficiencies of kindlins have clearly established that they regulate the capacity of integrins to mediate their functions. Kindlins are adaptor proteins; their function emanate from their interaction with binding partners, including the cytoplasmic tails of integrins and components of the actin cytoskeleton. The purpose of this review is to provide a brief overview of kindlin structure and function, a consideration of their binding partners, and then to focus on the relationship of each kindlin family member with cancer. In view of many correlations of kindlin expression levels and neoplasia and the known association of integrins with tumor progression and metastasis, we consider whether regulation of kindlins or their function would be attractive targets for treatment of cancer.
Collapse
Affiliation(s)
- Edward F Plow
- Joseph J. Jacobs Center for Thrombosis and Vascular Biology, Department of Molecular Cardiology, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Mitali Das
- Joseph J. Jacobs Center for Thrombosis and Vascular Biology, Department of Molecular Cardiology, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Katarzyna Bialkowska
- Joseph J. Jacobs Center for Thrombosis and Vascular Biology, Department of Molecular Cardiology, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Khalid Sossey-Alaoui
- Joseph J. Jacobs Center for Thrombosis and Vascular Biology, Department of Molecular Cardiology, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA
| |
Collapse
|