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Matsunuma M, Kan R, Yamada Y, Hamada K, Kanagawa M, Nomizu M, Kikkawa Y. Chain-specificity of laminin α1-5 LG45 modules in the recognition of carbohydrate-linked receptors and intramolecular binding. Sci Rep 2023; 13:10430. [PMID: 37369727 DOI: 10.1038/s41598-023-37533-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Accepted: 06/23/2023] [Indexed: 06/29/2023] Open
Abstract
Laminins are a family of heterotrimers composed of α-, β-, and γ-chains in the basement membrane. Five α chains contain laminin globular (LG) domain consisting of five tandem modules (LG1-5 modules) at their C-terminus. Each LG45 modules is connected to a compact cloverleaf-shaped structure of LG1-3 through a flexible linker. Although the accumulated studies of the LG45 modules have suggested differences in each α chain regarding the binding of carbohydrate chain and intramolecular interaction, this remains unclear. In this study, to characterize their functions comparatively, we produced recombinant proteins of LG45 modules of human laminin α1-5 chains. Dystroglycan (DG) modified with matriglycan readily bound to the LG45 modules of α1 and α2 chains but not to the other α chains. In contrast, heparin bound to the LG45 modules of the α chains, except for α2. The binding of heparan sulfate/heparin-linked syndecans (SDCs) to LG45 modules was influenced by their core proteins. Furthermore, the α1 and α4LG45 modules bound to SDCs in a pH-dependent manner. A cell adhesion assay showed that HEK293 cells could readily adhere to the LG45 modules of α3-5 chains through a combination of SDCs and integrins. Moreover, α5LG45 modules bound to the E8 fragment, which includes the C-terminus of the laminin coiled-coil (LCC) domain and LG1-3 modules, but α2LG45 modules did not. The results suggested that although α5LG45 modules was fixed within the LG domain, α2LG45 modules was freely placed in the vicinity of LG1-3. Our findings provide information for investigation of the structural and functional diversity of basement membranes.
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Affiliation(s)
- Masumi Matsunuma
- Department of Clinical Biochemistry, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo, 192-0392, Japan
| | - Ryuji Kan
- Department of Clinical Biochemistry, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo, 192-0392, Japan
| | - Yuji Yamada
- Department of Clinical Biochemistry, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo, 192-0392, Japan
| | - Keisuke Hamada
- Department of Clinical Biochemistry, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo, 192-0392, Japan
| | - Motoi Kanagawa
- Department of Cell Biology and Molecular Medicine, Ehime University Graduate School of Medicine, Toon, Ehime, 791-0295, Japan
| | - Motoyoshi Nomizu
- Department of Clinical Biochemistry, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo, 192-0392, Japan
| | - Yamato Kikkawa
- Department of Clinical Biochemistry, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo, 192-0392, Japan.
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Sivakumar S, Lieber S, Librizzi D, Keber C, Sommerfeld L, Finkernagel F, Roth K, Reinartz S, Bartsch JW, Graumann J, Müller‐Brüsselbach S, Müller R. Basal cell adhesion molecule promotes metastasis-associated processes in ovarian cancer. Clin Transl Med 2023; 13:e1176. [PMID: 36647260 PMCID: PMC9842900 DOI: 10.1002/ctm2.1176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Revised: 12/29/2022] [Accepted: 01/03/2023] [Indexed: 01/18/2023] Open
Abstract
BACKGROUND Basal cell adhesion molecule (BCAM) is a laminin α5 (LAMA5) binding membrane-bound protein with a putative role in cancer. Besides full-length BCAM1, an isoform lacking most of the cytoplasmic domain (BCAM2), and a soluble form (sBCAM) of unknown function are known. In ovarian carcinoma (OC), all BCAM forms are abundant and associated with poor survival, yet BCAM's contribution to peritoneal metastatic spread remains enigmatic. METHODS Biochemical, omics-based and real-time cell assays were employed to identify the source of sBCAM and metastasis-related functions of different BCAM forms. OC cells, explanted omentum and a mouse model of peritoneal colonisation were used in loss- and gain-of-function experiments. RESULTS We identified ADAM10 as a major BCAM sheddase produced by OC cells and identified proteolytic cleavage sites proximal to the transmembrane domain. Recombinant soluble BCAM inhibited single-cell adhesion and migration identically to membrane-bound isoforms, confirming its biological activity in OC. Intriguingly, this seemingly anti-tumorigenic potential of BCAM contrasts with a novel pro-metastatic function discovered in the present study. Thus, all queried BCAM forms decreased the compactness of tumour cell spheroids by inhibiting LAMA5 - integrin β1 interactions, promoted spheroid dispersion in a three-dimensional collagen matrix, induced clearance of mesothelial cells at spheroid attachment sites in vitro and enhanced invasion of spheroids into omental tissue both ex vivo and in vivo. CONCLUSIONS Membrane-bound BCAM as well as sBCAM shed by ADAM10 act as decoys rather than signalling receptors to modulate metastasis-related functions. While BCAM appears to have tumour-suppressive effects on single cells, it promotes the dispersion of OC cell spheroids by regulating LAMA5-integrin-β1-dependent compaction and thereby facilitating invasion of metastatic target sites. As peritoneal dissemination is majorly mediated by spheroids, these findings offer an explanation for the association of BCAM with a poor clinical outcome of OC, suggesting novel therapeutic options.
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Affiliation(s)
- Suresh Sivakumar
- Department of Translational OncologyCenter for Tumor Biology and Immunology (ZTI)Philipps UniversityMarburgGermany
| | - Sonja Lieber
- Department of Translational OncologyCenter for Tumor Biology and Immunology (ZTI)Philipps UniversityMarburgGermany
| | - Damiano Librizzi
- Small Animal Imaging Core FacilityCenter for Tumor Biology and Immunology (ZTI)Philipps UniversityMarburgGermany
| | - Corinna Keber
- Institute for PathologyPhilipps UniversityMarburgGermany
| | - Leah Sommerfeld
- Department of Translational OncologyCenter for Tumor Biology and Immunology (ZTI)Philipps UniversityMarburgGermany
| | - Florian Finkernagel
- Department of Translational OncologyCenter for Tumor Biology and Immunology (ZTI)Philipps UniversityMarburgGermany
- Bioinformatics Core FacilityCenter for Tumor Biology and Immunology (ZTI)Philipps UniversityMarburgGermany
| | - Katrin Roth
- Cell Imaging Core FacilityCenter for Tumor Biology and Immunology (ZTI)Philipps UniversityMarburgGermany
| | - Silke Reinartz
- Department of Translational OncologyCenter for Tumor Biology and Immunology (ZTI)Philipps UniversityMarburgGermany
| | | | - Johannes Graumann
- Biomolecular Mass SpectrometryMax Planck Institute for Heart and Lung ResearchBad NauheimGermany
- Institute for Translational ProteomicsPhilipps UniversityMarburgGermany
| | - Sabine Müller‐Brüsselbach
- Department of Translational OncologyCenter for Tumor Biology and Immunology (ZTI)Philipps UniversityMarburgGermany
| | - Rolf Müller
- Department of Translational OncologyCenter for Tumor Biology and Immunology (ZTI)Philipps UniversityMarburgGermany
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3
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Chavda ND, Sari B, Asiri FM, Hamill KJ. Laminin N-terminus (LaNt) proteins, laminins and basement membrane regulation. Biochem Soc Trans 2022; 50:1541-1553. [PMID: 36355367 PMCID: PMC9788559 DOI: 10.1042/bst20210240] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 10/21/2022] [Accepted: 10/24/2022] [Indexed: 10/03/2023]
Abstract
Basement membranes (BMs) are structured regions of the extracellular matrix that provide multiple functions including physical support and acting as a barrier, as a repository for nutrients and growth factors, and as biophysical signalling hubs. At the core of all BMs is the laminin (LM) family of proteins. These large heterotrimeric glycoproteins are essential for tissue integrity, and differences between LM family members represent a key nexus in dictating context and tissue-specific functions. These variations reflect genetic diversity within the family, which allows for multiple structurally and functionally distinct heterotrimers to be produced, each with different architectures and affinities for other matrix proteins and cell surface receptors. The ratios of these LM isoforms also influence the biophysical properties of a BM owing to differences in their relative ability to form polymers or networks. Intriguingly, the LM superfamily is further diversified through the related netrin family of proteins and through alternative splicing leading to the generation of non-LM short proteins known as the laminin N-terminus (LaNt) domain proteins. Both the netrins and LaNt proteins contain structural domains involved in LM-to-LM interaction and network assembly. Emerging findings indicate that one netrin and at least one LaNt protein can potently influence the structure and function of BMs, disrupting the networks, changing physical properties, and thereby influencing tissue function. These findings are altering the way that we think about LM polymerisation and, in the case of the LaNt proteins, suggest a hitherto unappreciated form of LM self-regulation.
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Affiliation(s)
- Natasha D. Chavda
- Institute of Life Course and Medical Sciences, University of Liverpool, 6 West Derby Street, Liverpool L78TX, U.K
| | - Bilge Sari
- Institute of Life Course and Medical Sciences, University of Liverpool, 6 West Derby Street, Liverpool L78TX, U.K
| | - Fawziah M. Asiri
- Institute of Life Course and Medical Sciences, University of Liverpool, 6 West Derby Street, Liverpool L78TX, U.K
| | - Kevin J. Hamill
- Institute of Life Course and Medical Sciences, University of Liverpool, 6 West Derby Street, Liverpool L78TX, U.K
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4
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Kaimori JY, Kikkawa Y, Motooka D, Namba-Hamano T, Takuwa A, Okazaki A, Kobayashi K, Tanigawa A, Kotani Y, Uno Y, Yoshimi K, Hattori K, Asahina Y, Kajimoto S, Doi Y, Oka T, Sakaguchi Y, Mashimo T, Sekiguchi K, Nakaya A, Nomizu M, Isaka Y. A heterozygous LAMA5 variant may contribute to slowly progressive, vinculin-enhanced familial FSGS and pulmonary defects. JCI Insight 2022; 7:158378. [PMID: 36173685 PMCID: PMC9746903 DOI: 10.1172/jci.insight.158378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Accepted: 09/20/2022] [Indexed: 01/12/2023] Open
Abstract
The LAMA5 gene encodes laminin α5, an indispensable component of glomerular basement membrane and other types of basement membrane. A homozygous pathological variant in LAMA5 is known to cause a systemic developmental syndrome including glomerulopathy. However, the roles of heterozygous LAMA5 gene variants in human renal and systemic diseases have remained unclear. We performed whole-exome sequencing analyses of a family with slowly progressive nephropathy associated with hereditary focal segmental glomerulosclerosis, and we identified what we believe to be a novel probable pathogenic variant of LAMA5, NP_005551.3:p.Val3687Met. In vitro analyses revealed cell type-dependent changes in secretion of variant laminin α5 laminin globular 4-5 (LG4-5) domain. Heterozygous and homozygous knockin mice with a corresponding variant of human LAMA5, p.Val3687Met, developed focal segmental glomerulosclerosis-like pathology with reduced laminin α5 and increased glomerular vinculin levels, which suggested that impaired cell adhesion may underlie this glomerulopathy. We also identified pulmonary defects such as bronchial deformity and alveolar dilation. Reexaminations of the family revealed phenotypes compatible with reduced laminin α5 and increased vinculin levels in affected tissues. Thus, the heterozygous p.Val3687Met variant may cause a new syndromic nephropathy with focal segmental glomerulosclerosis through possibly defective secretion of laminin α5. Enhanced vinculin may be a useful disease marker.
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Affiliation(s)
- Jun-Ya Kaimori
- Department of Inter-Organ Communication Research in Kidney Diseases and,Department of Nephrology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Yamato Kikkawa
- Department of Clinical Biochemistry, Tokyo University of Pharmacy and Life Sciences, Tokyo, Japan
| | - Daisuke Motooka
- Genome Information Research Center, Research Institute for Microbial Diseases, and,Immunology Frontier Research Center, Osaka University, Osaka, Japan
| | - Tomoko Namba-Hamano
- Department of Nephrology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Ayako Takuwa
- Immunology Frontier Research Center, Osaka University, Osaka, Japan
| | - Atsuko Okazaki
- Department of Genome Informatics, Osaka University Graduate School of Medicine, Osaka, Japan.,Diagnostics and Therapeutics of Intractable Diseases, Intractable Disease Research Center, Graduate School of Medicine, Juntendo University, Tokyo, Japan
| | - Kaori Kobayashi
- Department of Genome Informatics, Osaka University Graduate School of Medicine, Osaka, Japan.,Medical Solutions Division, NEC Corporation, Tokyo, Japan
| | | | - Yuko Kotani
- Institute of Experimental Animal Sciences and
| | | | - Kazuto Yoshimi
- Genome Editing Research and Development (R&D) Center, Osaka University Graduate School of Medicine, Osaka, Japan.,Division of Animal Genetics, Laboratory Animal Research Center, The Institute of Medical Science
| | - Koki Hattori
- Department of Nephrology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Yuta Asahina
- Department of Nephrology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Sachio Kajimoto
- Department of Nephrology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Yohei Doi
- Department of Nephrology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Tatsufumi Oka
- Department of Nephrology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Yusuke Sakaguchi
- Department of Inter-Organ Communication Research in Kidney Diseases and,Department of Nephrology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Tomoji Mashimo
- Institute of Experimental Animal Sciences and,Genome Editing Research and Development (R&D) Center, Osaka University Graduate School of Medicine, Osaka, Japan.,Division of Animal Genetics, Laboratory Animal Research Center, The Institute of Medical Science;,Division of Genome Engineering, Center for Experimental Medicine and Systems Biology, The Institute of Medical Science
| | - Kiyotoshi Sekiguchi
- Division of Matrixome Research and Application, Institute for Protein Research; and
| | - Akihiro Nakaya
- Department of Genome Informatics, Osaka University Graduate School of Medicine, Osaka, Japan.,Laboratory of Genome Data Science, Graduate School of Frontier Sciences, The University of Tokyo, Tokyo, Japan
| | - Motoyoshi Nomizu
- Department of Clinical Biochemistry, Tokyo University of Pharmacy and Life Sciences, Tokyo, Japan
| | - Yoshitaka Isaka
- Department of Nephrology, Osaka University Graduate School of Medicine, Osaka, Japan
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5
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Fischer NG, Aparicio C. Junctional epithelium and hemidesmosomes: Tape and rivets for solving the "percutaneous device dilemma" in dental and other permanent implants. Bioact Mater 2022; 18:178-198. [PMID: 35387164 PMCID: PMC8961425 DOI: 10.1016/j.bioactmat.2022.03.019] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 02/14/2022] [Accepted: 03/12/2022] [Indexed: 02/06/2023] Open
Abstract
The percutaneous device dilemma describes etiological factors, centered around the disrupted epithelial tissue surrounding non-remodelable devices, that contribute to rampant percutaneous device infection. Natural percutaneous organs, in particular their extracellular matrix mediating the "device"/epithelium interface, serve as exquisite examples to inspire longer lasting long-term percutaneous device design. For example, the tooth's imperviousness to infection is mediated by the epithelium directly surrounding it, the junctional epithelium (JE). The hallmark feature of JE is formation of hemidesmosomes, cell/matrix adhesive structures that attach surrounding oral gingiva to the tooth's enamel through a basement membrane. Here, the authors survey the multifaceted functions of the JE, emphasizing the role of the matrix, with a particular focus on hemidesmosomes and their five main components. The authors highlight the known (and unknown) effects dental implant - as a model percutaneous device - placement has on JE regeneration and synthesize this information for application to other percutaneous devices. The authors conclude with a summary of bioengineering strategies aimed at solving the percutaneous device dilemma and invigorating greater collaboration between clinicians, bioengineers, and matrix biologists.
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Affiliation(s)
- Nicholas G. Fischer
- MDRCBB-Minnesota Dental Research Center for Biomaterials and Biomechanics, University of Minnesota, 16-212 Moos Tower, 515 Delaware St. SE, Minneapolis, MN, 55455, USA
| | - Conrado Aparicio
- MDRCBB-Minnesota Dental Research Center for Biomaterials and Biomechanics, University of Minnesota, 16-212 Moos Tower, 515 Delaware St. SE, Minneapolis, MN, 55455, USA
- Division of Basic Research, Faculty of Odontology, UIC Barcelona – Universitat Internacional de Catalunya, C/. Josep Trueta s/n, 08195, Sant Cugat del Valles, Barcelona, Spain
- Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST), C/. Baldiri Reixac 10-12, 08028, Barcelona, Spain
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6
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Kikkawa Y, Matsunuma M, Kan R, Yamada Y, Hamada K, Nomizu M, Negishi Y, Nagamori S, Toda T, Tanaka M, Kanagawa M. Laminin α5_CD239_Spectrin is a candidate association that compensates the linkage between the basement membrane and cytoskeleton in skeletal muscle fibers. Matrix Biol Plus 2022; 15:100118. [PMID: 35990309 PMCID: PMC9382564 DOI: 10.1016/j.mbplus.2022.100118] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Revised: 07/28/2022] [Accepted: 08/02/2022] [Indexed: 11/06/2022] Open
Abstract
Laminin α5_CD239_spectrin complex is a candidate linkage in sarcolemma. The linkage molecules are expressed in embryonic and regenerative muscle fibers. CD239 expression is upregulated by steroid therapy for muscular dystrophy. The compensatory linkage may be a therapeutic target for muscular dystrophy.
The linkage between the basement membrane (BM) and cytoskeleton is crucial for muscle fiber stability and signal transduction. Mutations in the linkage molecules can cause various types of muscular dystrophies. The different severities and times of onset suggest that compensatory linkages occur at the sarcolemma. Cluster of differentiation 239 (CD239) binds to the α5 subunit of laminin-511 extracellularly and is connected to spectrin intracellularly, resulting in a linkage between the BM and cytoskeleton. In this study, we explored the linkage of laminin α5_CD239_spectrin in skeletal muscles. Although laminin α5, CD239, and spectrin were present in embryonic skeletal muscles, they disappeared in adult skeletal muscle tissues, except for the soleus and diaphragm. Laminin α5_CD239_spectrin was localized in the skeletal muscle tissues of Duchenne muscular dystrophy and congenital muscular dystrophy mouse models. The experimental regeneration of skeletal muscle increased the CD239-mediated linkage, indicating that it responds to regeneration, but not to genetic influence. Furthermore, in silico analysis showed that laminin α5_CD239_spectrin was upregulated by steroid therapy for muscular dystrophy. Therefore, CD239-mediated linkage may serve as a therapeutic target to prevent the progression of muscular dystrophy.
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7
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Wang L, Shen Q, Liao H, Fu H, Wang Q, Yu J, Zhang W, Chen C, Dong Y, Yang X, Guo Q, Zhang J, Zhang J, Zhang W, Lin H, Duan Y. Multi-Arm PEG/Peptidomimetic Conjugate Inhibitors of DR6/APP Interaction Block Hematogenous Tumor Cell Extravasation. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:e2003558. [PMID: 34105277 PMCID: PMC8188212 DOI: 10.1002/advs.202003558] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 01/16/2021] [Indexed: 05/05/2023]
Abstract
The binding of amyloid precursor protein (APP) expressed on tumor cells to death receptor 6 (DR6) could initiate the necroptosis pathway, which leads to necroptotic cell death of vascular endothelial cells (ECs) and results in tumor cells (TCs) extravasation and metastasis. This study reports the first inhibitor of DR6/APP interaction as a novel class of anti-hematogenous metastatic agent. By rationally utilizing three combined strategies including selection based on phage display library, d-retro-inverso modification, and multiple conjugation of screened peptidomimetic with 4-arm PEG, the polymer-peptidomimetic conjugate PEG-tAHP-DRI (tetra-(D-retro-inverso isomer of AHP-12) substitued 4-arm PEG5k ) is obtained as the most promising agent with the strongest binding potency (KD = 51.12 × 10-9 m) and excellent pharmacokinetic properties. Importantly, PEG-tAHP-DRI provides efficient protection against TC-induced ECs necroptosis both in vitro and in vivo. Moreover, this ligand exhibits prominent anti-hematogenous metastatic activity in serval different metastatic mouse models (B16F10, 4T1, CT26, and spontaneous lung metastasis of 4T1 orthotopic tumor model) and displays no apparent detrimental effects in preliminary safety evaluation. Collectively, this study demonstrates the feasibility of exploiting DR6/APP interaction to regulate hematogenous tumor cells transendothelial migration and provides PEG-tAHP-DRI as a novel and promising inhibitor of DR6/APP interaction for developments of anti-hematogenous metastatic therapies.
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Affiliation(s)
- Liting Wang
- State Key Laboratory of Oncogenes and Related GenesShanghai Cancer InstituteSchool of Biomedical EngineeringRenji HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai200032China
| | - Qing Shen
- State Key Laboratory of Oncogenes and Related GenesShanghai Cancer InstituteSchool of Biomedical EngineeringRenji HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai200032China
| | - Hongze Liao
- Research Center for Marine DrugsState Key Laboratory of Oncogenes and Related GenesDepartment of PharmacyRenji HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai200127China
| | - Hao Fu
- State Key Laboratory of Oncogenes and Related GenesShanghai Cancer InstituteSchool of Biomedical EngineeringRenji HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai200032China
| | - Qi Wang
- Shanghai Key Laboratory of Functional Materials ChemistrySchool of Chemistry and Molecular EngineeringEast China University of Science and TechnologyShanghai200237China
| | - Jian Yu
- State Key Laboratory of Oncogenes and Related GenesShanghai Cancer InstituteSchool of Biomedical EngineeringRenji HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai200032China
| | - Wei Zhang
- State Key Laboratory of Oncogenes and Related GenesShanghai Cancer InstituteSchool of Biomedical EngineeringRenji HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai200032China
| | - Chuanrong Chen
- State Key Laboratory of Oncogenes and Related GenesShanghai Cancer InstituteSchool of Biomedical EngineeringRenji HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai200032China
| | - Yang Dong
- State Key Laboratory of Oncogenes and Related GenesShanghai Cancer InstituteSchool of Biomedical EngineeringRenji HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai200032China
| | - Xupeng Yang
- State Key Laboratory of Oncogenes and Related GenesShanghai Cancer InstituteSchool of Biomedical EngineeringRenji HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai200032China
| | - Qianqian Guo
- State Key Laboratory of Oncogenes and Related GenesShanghai Cancer InstituteSchool of Biomedical EngineeringRenji HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai200032China
| | - Jiali Zhang
- State Key Laboratory of Oncogenes and Related GenesShanghai Cancer InstituteSchool of Biomedical EngineeringRenji HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai200032China
| | - Jian Zhang
- Department of PathophysiologyKey Laboratory of Cell Differentiation and Apoptosis of Ministry of EducationShanghai Jiao Tong University School of MedicineShanghai200025China
| | - Wei Zhang
- Research Center for Marine DrugsState Key Laboratory of Oncogenes and Related GenesDepartment of PharmacyRenji HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai200127China
| | - Houwen Lin
- State Key Laboratory of Oncogenes and Related GenesShanghai Cancer InstituteSchool of Biomedical EngineeringRenji HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai200032China
- Research Center for Marine DrugsState Key Laboratory of Oncogenes and Related GenesDepartment of PharmacyRenji HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai200127China
| | - Yourong Duan
- State Key Laboratory of Oncogenes and Related GenesShanghai Cancer InstituteSchool of Biomedical EngineeringRenji HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai200032China
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8
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Nirasawa K, Hamada K, Naraki Y, Kikkawa Y, Sasaki E, Endo-Takahashi Y, Hamano N, Katagiri F, Nomizu M, Negishi Y. Development of A2G80 peptide-gene complex for targeted delivery to muscle cells. J Control Release 2021; 329:988-996. [PMID: 33091529 DOI: 10.1016/j.jconrel.2020.10.029] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 09/28/2020] [Accepted: 10/16/2020] [Indexed: 12/22/2022]
Abstract
Therapeutic strategies based on antisense oligonucleotides and therapeutic genes are being extensively investigated for the treatment of hereditary muscle diseases and hold great promise. However, the cellular uptake of these polyanions to the muscle cells is inefficient. Therefore, it is necessary to develop more effective methods of gene delivery into the muscle tissue. The A2G80 peptide (VQLRNGFPYFSY) from the laminin α2 chain has high affinity for α-dystroglycan (α-DG) which is expressed on the membrane of muscle cells. In this study, we designed a peptide-modified A2G80 with oligoarginine and oligohistidine (A2G80-R9-H8), and prepared peptide/plasmid DNA (pDNA) complex, to develop an efficient gene delivery system for the muscle tissue. The peptide/pDNA complex showed α-DG-dependent cellular uptake of the A2G80 sequence and significantly improved gene transfection efficiency mediated by the oligohistidine sequence in C2C12 myoblast cells. Further, the peptide/pDNA complex promoted efficient and sustained gene expression in the Duchenne muscular dystrophy mouse models. The A2G80-R9-H8 peptide has the potential for use as a specific carrier for targeting muscle in gene therapy in muscular dystrophy.
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Affiliation(s)
- Kei Nirasawa
- Department of Drug Delivery and Molecular Biopharmaceutics, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo 192-0392, Japan
| | - Keisuke Hamada
- Department of Clinical Biochemistry, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo 192-0392, Japan
| | - Yukiko Naraki
- Department of Drug Delivery and Molecular Biopharmaceutics, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo 192-0392, Japan
| | - Yamato Kikkawa
- Department of Clinical Biochemistry, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo 192-0392, Japan
| | - Eri Sasaki
- Department of Drug Delivery and Molecular Biopharmaceutics, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo 192-0392, Japan
| | - Yoko Endo-Takahashi
- Department of Drug Delivery and Molecular Biopharmaceutics, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo 192-0392, Japan
| | - Nobuhito Hamano
- Department of Drug Delivery and Molecular Biopharmaceutics, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo 192-0392, Japan
| | - Fumihiko Katagiri
- Department of Clinical Biochemistry, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo 192-0392, Japan
| | - Motoyoshi Nomizu
- Department of Clinical Biochemistry, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo 192-0392, Japan
| | - Yoichi Negishi
- Department of Drug Delivery and Molecular Biopharmaceutics, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo 192-0392, Japan.
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9
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Barros D, Amaral IF, Pêgo AP. Laminin-Inspired Cell-Instructive Microenvironments for Neural Stem Cells. Biomacromolecules 2019; 21:276-293. [PMID: 31789020 DOI: 10.1021/acs.biomac.9b01319] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Laminin is a heterotrimeric glycoprotein with a key role in the formation and maintenance of the basement membrane architecture and properties, as well as on the modulation of several biological functions, including cell adhesion, migration, differentiation and matrix-mediated signaling. In the central nervous system (CNS), laminin is differentially expressed during development and homeostasis, with an impact on the modulation of cell function and fate. Within neurogenic niches, laminin is one of the most important and well described extracellular matrix (ECM) proteins. Specifically, efforts have been made to understand laminin assembly, domain architecture, and interaction of its different bioactive domains with cell surface receptors, soluble signaling molecules, and ECM proteins, to gain insight into the role of this ECM protein and its receptors on the modulation of neurogenesis, both in homeostasis and during repair. This is also expected to provide a rational basis for the design of biomaterial-based matrices mirroring the biological properties of the basement membrane of neural stem cell niches, for application in neural tissue repair and cell transplantation. This review provides a general overview of laminin structure and domain architecture, as well as the main biological functions mediated by this heterotrimeric glycoprotein. The expression and distribution of laminin in the CNS and, more specifically, its role within adult neural stem cell niches is summarized. Additionally, a detailed overview on the use of full-length laminin and laminin derived peptide/recombinant laminin fragments for the development of hydrogels for mimicking the neurogenic niche microenvironment is given. Finally, the main challenges associated with the development of laminin-inspired hydrogels and the hurdles to overcome for these to progress from bench to bedside are discussed.
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Affiliation(s)
- Daniela Barros
- i3S - Instituto de Investigação e Inovação em Saúde , Universidade do Porto (UPorto) , Porto 4200-153 , Portugal.,INEB - Instituto de Engenharia Biomédica , UPorto , Porto 4200-153 , Portugal.,ICBAS - Instituto de Ciências Biomédicas Abel Salazar , UPorto , Porto 4200-153 , Portugal
| | - Isabel F Amaral
- i3S - Instituto de Investigação e Inovação em Saúde , Universidade do Porto (UPorto) , Porto 4200-153 , Portugal.,INEB - Instituto de Engenharia Biomédica , UPorto , Porto 4200-153 , Portugal.,FEUP - Faculdade de Engenharia , UPorto , Porto 4200-153 , Portugal
| | - Ana P Pêgo
- i3S - Instituto de Investigação e Inovação em Saúde , Universidade do Porto (UPorto) , Porto 4200-153 , Portugal.,INEB - Instituto de Engenharia Biomédica , UPorto , Porto 4200-153 , Portugal.,ICBAS - Instituto de Ciências Biomédicas Abel Salazar , UPorto , Porto 4200-153 , Portugal.,FEUP - Faculdade de Engenharia , UPorto , Porto 4200-153 , Portugal
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10
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Bipartite mechanism for laminin-integrin interactions: Identification of the integrin-binding site in LG domains of the laminin α chain. Matrix Biol 2019; 87:66-76. [PMID: 31669520 DOI: 10.1016/j.matbio.2019.10.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Revised: 10/21/2019] [Accepted: 10/21/2019] [Indexed: 02/02/2023]
Abstract
Laminins are major cell-adhesive proteins consisting of α, β, and γ chains, in which the three C-terminal globular domains of the α chain (LMα/LG1-3) and the C-terminal tail region of the γ1 chain (LMγ1-tail) are required for binding to integrin. Despite the recent progress on the role of LMγ1-tail in coordinating the metal ion-dependent adhesion site of the integrin β subunit, the mechanism by which LMα/LG1-3 interacts with integrin remains to be elucidated. We found that basic residues on the bottom face of LMα5/LG2 are required for binding laminin-511 to α6β1 integrin. Intermolecular cysteine scanning assays demonstrated that the basic residues in LMα5/LG2 were in contact with the acidic residues within the laminin-binding X1 region of the integrin α subunit in the laminin-integrin complex. These results indicate that LMα5/LG2 interacts directly with the integrin α subunit and comprises a bipartite integrin binding site of laminin-511 with the LMγ1-tail.
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11
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Characterization of dystroglycan binding in adhesion of human induced pluripotent stem cells to laminin-511 E8 fragment. Sci Rep 2019; 9:13037. [PMID: 31506597 PMCID: PMC6737067 DOI: 10.1038/s41598-019-49669-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Accepted: 08/29/2019] [Indexed: 12/16/2022] Open
Abstract
Human induced pluripotent stem cells (hiPSCs) grow indefinitely in culture and have the potential to regenerate various tissues. In the development of cell culture systems, a fragment of laminin-511 (LM511-E8) was found to improve the proliferation of stem cells. The adhesion of undifferentiated cells to LM511-E8 is mainly mediated through integrin α6β1. However, the involvement of non-integrin receptors remains unknown in stem cell culture using LM511-E8. Here, we show that dystroglycan (DG) is strongly expressed in hiPSCs. The fully glycosylated DG is functionally active for laminin binding, and although it has been suggested that LM511-E8 lacks DG binding sites, the fragment does weakly bind to DG. We further identified the DG binding sequence in LM511-E8, using synthetic peptides, of which, hE8A5-20 (human laminin α5 2688–2699: KTLPQLLAKLSI) derived from the laminin coiled-coil domain, exhibited DG binding affinity and cell adhesion activity. Deletion and mutation studies show that LLAKLSI is the active core sequence of hE8A5-20, and that, K2696 is a critical amino acid for DG binding. We further demonstrated that hiPSCs adhere to hE8A5-20-conjugated chitosan matrices. The amino acid sequence of DG binding peptides would be useful to design substrata for culture system of undifferentiated and differentiated stem cells.
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12
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Gritsenko PG, Friedl P. Adaptive adhesion systems mediate glioma cell invasion in complex environments. J Cell Sci 2018; 131:jcs216382. [PMID: 29991514 PMCID: PMC6104823 DOI: 10.1242/jcs.216382] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Accepted: 07/02/2018] [Indexed: 12/12/2022] Open
Abstract
Diffuse brain invasion by glioma cells prevents effective surgical or molecular-targeted therapy and underlies a detrimental outcome. Migrating glioma cells are guided by complex anatomical brain structures but the exact mechanisms remain poorly defined. To identify adhesion receptor systems and matrix structures supporting glioma cell invasion into brain-like environments we used 2D and 3D organotypic invasion assays in combination with antibody-, peptide- and RNA-based interference. Combined interference with β1 and αV integrins abolished the migration of U-251 and E-98 glioma cells on reconstituted basement membrane; however, invasion into primary brain slices or 3D astrocyte-based scaffolds and migration on astrocyte-deposited matrix was only partly inhibited. Any residual invasion was supported by vascular structures, as well as laminin 511, a central constituent of basement membrane of brain blood vessels. Multi-targeted interference against β1, αV and α6 integrins expressed by U-251 and E-98 cells proved insufficient to achieve complete migration arrest. These data suggest that mechanocoupling by integrins is relatively resistant to antibody- or peptide-based targeting, and cooperates with additional, as yet unidentified adhesion systems in mediating glioma cell invasion in complex brain stroma.
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Affiliation(s)
- Pavlo G Gritsenko
- Department of Cell Biology, Radboud Institute for Molecular Life Sciences, Radboud University Nijmegen Medical Centre, 6525 GA Nijmegen, The Netherlands
| | - Peter Friedl
- Department of Cell Biology, Radboud Institute for Molecular Life Sciences, Radboud University Nijmegen Medical Centre, 6525 GA Nijmegen, The Netherlands
- David H. Koch Center for Applied Research of Genitourinary Cancers, Department of Genitourinary Medical Oncology, The University of Texas, MD Anderson Cancer Center, Houston, 77030 Texas, USA
- Cancer Genomics Centre (CGC.nl), 3584 Utrecht, The Netherlands
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13
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Miura Y, Matsui S, Miyata N, Harada K, Kikkawa Y, Ohmuraya M, Araki K, Tsurusaki S, Okochi H, Goda N, Miyajima A, Tanaka M. Differential expression of Lutheran/BCAM regulates biliary tissue remodeling in ductular reaction during liver regeneration. eLife 2018; 7:36572. [PMID: 30059007 PMCID: PMC6107333 DOI: 10.7554/elife.36572] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2018] [Accepted: 07/28/2018] [Indexed: 02/07/2023] Open
Abstract
Under chronic or severe liver injury, liver progenitor cells (LPCs) of biliary origin are known to expand and contribute to the regeneration of hepatocytes and cholangiocytes. This regeneration process is called ductular reaction (DR), which is accompanied by dynamic remodeling of biliary tissue. Although the DR shows apparently distinct mode of biliary extension depending on the type of liver injury, the key regulatory mechanism remains poorly understood. Here, we show that Lutheran (Lu)/Basal cell adhesion molecule (BCAM) regulates the morphogenesis of DR depending on liver disease models. Lu+ and Lu- biliary cells isolated from injured liver exhibit opposite phenotypes in cell motility and duct formation capacities in vitro. By overexpression of Lu, Lu- biliary cells acquire the phenotype of Lu+ biliary cells. Lu-deficient mice showed severe defects in DR. Our findings reveal a critical role of Lu in the control of phenotypic heterogeneity of DR in distinct liver disease models. Bile is a green to yellow liquid that the body uses to break down and digest fatty molecules. The substance is produced by the liver, and then it is collected and transported to the small bowel by a series of tubes known as the bile duct. When the liver is damaged, the ‘biliary’ cells that line the duct orchestrate the repair of the organ. In fact, the duct often reorganizes itself differently depending on the type of disease the liver is experiencing. For example, the biliary cells can form thin tube-like structures that deeply invade liver tissues, or they can grow into several robust pipes near the existing bile duct. However, it remains largely unknown which protein – or proteins – drive these different types of remodeling. Miura et al. find that, in mice, the biliary cells which invade an injured liver have a large amount of a protein called Lutheran at their surface, but that the cells that form robust ducts do not. This protein helps a cell attach to its surroundings. In addition, the biliary cells can adopt different types of repairing behaviors depending on the amount of Lutheran in their environment. Further experiments show that it is difficult for genetically modified mice without the protein to reshape their bile duct after liver injury. Finally, Miura et al. also detect Lutheran in the remodeling livers of patients with liver disease. Taken together, these results suggest that Lutheran plays an important role in tailoring the repairing roles of the biliary cells to a particular disease. The next step would be to clarify how different liver conditions coordinate the amount of Lutheran in biliary cells to create the right type of remodeling.
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Affiliation(s)
- Yasushi Miura
- Department of Regenerative Medicine, Research Institute, National Center for Global Health and Medicine, Tokyo, Japan.,Department of Life Science and Medical Bioscience, Graduate School of Advanced Science and Engineering, Waseda University, Tokyo, Japan
| | - Satoshi Matsui
- Department of Regenerative Medicine, Research Institute, National Center for Global Health and Medicine, Tokyo, Japan.,Laboratory of Cell Growth and Differentiation, Institute of Molecular and Cellular Biosciences, The University of Tokyo, Tokyo, Japan
| | - Naoko Miyata
- Department of Regenerative Medicine, Research Institute, National Center for Global Health and Medicine, Tokyo, Japan
| | - Kenichi Harada
- Department of Human Pathology, Kanazawa University Graduate School of Medicine, Kanazawa, Japan
| | - Yamato Kikkawa
- Department of Clinical Biochemistry, Tokyo University of Pharmacy and Life Sciences, Tokyo, Japan
| | - Masaki Ohmuraya
- Department of Genetics, Hyogo College of Medicine, Hyogo, Japan
| | - Kimi Araki
- Institute of Resource Development and Analysis, Kumamoto University, Kumamoto, Japan
| | - Shinya Tsurusaki
- Department of Regenerative Medicine, Research Institute, National Center for Global Health and Medicine, Tokyo, Japan.,Laboratory of Stem Cell Regulation, Institute of Molecular and Cellular Biosciences, The University of Tokyo, Tokyo, Japan
| | - Hitoshi Okochi
- Department of Regenerative Medicine, Research Institute, National Center for Global Health and Medicine, Tokyo, Japan
| | - Nobuhito Goda
- Department of Life Science and Medical Bioscience, Graduate School of Advanced Science and Engineering, Waseda University, Tokyo, Japan
| | - Atsushi Miyajima
- Laboratory of Cell Growth and Differentiation, Institute of Molecular and Cellular Biosciences, The University of Tokyo, Tokyo, Japan
| | - Minoru Tanaka
- Department of Regenerative Medicine, Research Institute, National Center for Global Health and Medicine, Tokyo, Japan.,Laboratory of Stem Cell Regulation, Institute of Molecular and Cellular Biosciences, The University of Tokyo, Tokyo, Japan
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14
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Lin MH, Miller JB, Kikkawa Y, Suleiman HY, Tryggvason K, Hodges BL, Miner JH. Laminin-521 Protein Therapy for Glomerular Basement Membrane and Podocyte Abnormalities in a Model of Pierson Syndrome. J Am Soc Nephrol 2018; 29:1426-1436. [PMID: 29472414 PMCID: PMC5967757 DOI: 10.1681/asn.2017060690] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Accepted: 01/14/2018] [Indexed: 12/22/2022] Open
Abstract
Background Laminin α5β2γ1 (LM-521) is a major component of the GBM. Mutations in LAMB2 that prevent LM-521 synthesis and/or secretion cause Pierson syndrome, a rare congenital nephrotic syndrome with diffuse mesangial sclerosis and ocular and neurologic defects. Because the GBM is uniquely accessible to plasma, which permeates endothelial cell fenestrae, we hypothesized that intravenous delivery of LM-521 could replace the missing LM-521 in the GBM of Lamb2 mutant mice and restore glomerular permselectivity.Methods We injected human LM-521 (hLM-521), a macromolecule of approximately 800 kD, into the retro-orbital sinus of Lamb2-/- pups daily. Deposition of hLM-521 into the GBM was investigated by fluorescence microscopy. We assayed the effects of hLM-521 on glomerular permselectivity by urinalysis and the effects on podocytes by desmin immunostaining and ultrastructural analysis of podocyte architecture.Results Injected hLM-521 rapidly and stably accumulated in the GBM of all glomeruli. Super-resolution imaging showed that hLM-521 accumulated in the correct orientation in the GBM, primarily on the endothelial aspect. Treatment with hLM-521 greatly reduced the expression of the podocyte injury marker desmin and attenuated the foot process effacement observed in untreated pups. Moreover, treatment with hLM-521 delayed the onset of proteinuria but did not prevent nephrotic syndrome, perhaps due to its absence from the podocyte aspect of the GBM.Conclusions These studies show that GBM composition and function can be altered in vivovia vascular delivery of even very large proteins, which may advance therapeutic options for patients with abnormal GBM composition, whether genetic or acquired.
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Affiliation(s)
- Meei-Hua Lin
- Division of Nephrology, Department of Medicine, Washington University School of Medicine, St. Louis, Missouri
| | - Joseph B Miller
- Division of Nephrology, Department of Medicine, Washington University School of Medicine, St. Louis, Missouri
| | - Yamato Kikkawa
- Department of Clinical Biochemistry, Tokyo University of Pharmacy and Life Sciences, Tokyo, Japan
| | - Hani Y Suleiman
- Division of Nephrology, Department of Medicine, Washington University School of Medicine, St. Louis, Missouri
| | - Karl Tryggvason
- Cardiovascular and Metabolic Disorders Program, Duke-NUS Medical School, Singapore, Singapore
- Department of Medical Biochemistry and Biophysics, Karolinska Institute, Stockholm, Sweden; and
| | | | - Jeffrey H Miner
- Division of Nephrology, Department of Medicine, Washington University School of Medicine, St. Louis, Missouri;
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15
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Kikkawa Y, Enomoto-Okawa Y, Fujiyama A, Fukuhara T, Harashima N, Sugawara Y, Negishi Y, Katagiri F, Hozumi K, Nomizu M, Ito Y. Internalization of CD239 highly expressed in breast cancer cells: a potential antigen for antibody-drug conjugates. Sci Rep 2018; 8:6612. [PMID: 29700410 PMCID: PMC5919910 DOI: 10.1038/s41598-018-24961-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Accepted: 04/12/2018] [Indexed: 01/25/2023] Open
Abstract
Antibody-drug conjugates (ADCs) are attractive in cancer therapy because they can directly bind to cancer cells and provide anticancer activity. To kill cancer cells with ADCs, the target antigens are required not only to be highly and/or selectively expressed on cancer cells but also internalized by the cells. CD239, also known as the Lutheran blood group glycoprotein (Lu) or basal cell adhesion molecule (B-CAM), is a specific receptor for laminin α5, a major component of basement membranes. Here, we show that CD239 is strongly expressed in a subset of breast cancer cells and internalized into the cells. We also produced a human single-chain variable fragment (scFv) specific to CD239 fused with human IgG1 Fc, called C7-Fc. The binding affinity of the C7-Fc antibody is similar to that of mouse monoclonal antibodies. Although the C7-Fc antibody alone does not influence cellular functions, when conjugated with a fragment of diphtheria toxin lacking the receptor-binding domain (fDT), it can selectively kill breast cancer cells. Interestingly, fDT-bound C7-Fc shows anticancer activity in CD239-highly positive SKBR3 cells, but not in weakly positive cells. Our results show that CD239 is a promising antigen for ADC-based breast cancer therapy.
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Affiliation(s)
- Yamato Kikkawa
- Department of Clinical Biochemistry, Tokyo University of Pharmacy and Life Sciences, Tokyo, 192-0392, Japan.
| | - Yurie Enomoto-Okawa
- Graduate School of Science and Engineering, Kagoshima University, Kagoshima, 890-0065, Japan
| | - Aiko Fujiyama
- Graduate School of Science and Engineering, Kagoshima University, Kagoshima, 890-0065, Japan
| | - Takeshi Fukuhara
- Laboratory of Oncology, Tokyo University of Pharmacy and Life Sciences, Tokyo, 192-0392, Japan.,Department of Neurology, Graduate School of Medicine, Juntendo University, Bunkyo-ku, Tokyo, 113-8421, Japan
| | - Nozomi Harashima
- Department of Clinical Biochemistry, Tokyo University of Pharmacy and Life Sciences, Tokyo, 192-0392, Japan
| | - Yumika Sugawara
- Department of Clinical Biochemistry, Tokyo University of Pharmacy and Life Sciences, Tokyo, 192-0392, Japan
| | - Yoichi Negishi
- Department of Drug Delivery and Molecular Biopharmaceutics, Tokyo University of Pharmacy and Life Sciences, Tokyo, 192-0392, Japan
| | - Fumihiko Katagiri
- Department of Clinical Biochemistry, Tokyo University of Pharmacy and Life Sciences, Tokyo, 192-0392, Japan
| | - Kentaro Hozumi
- Department of Clinical Biochemistry, Tokyo University of Pharmacy and Life Sciences, Tokyo, 192-0392, Japan
| | - Motoyoshi Nomizu
- Department of Clinical Biochemistry, Tokyo University of Pharmacy and Life Sciences, Tokyo, 192-0392, Japan
| | - Yuji Ito
- Graduate School of Science and Engineering, Kagoshima University, Kagoshima, 890-0065, Japan
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16
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Glycophorin-C sialylation regulates Lu/BCAM adhesive capacity during erythrocyte aging. Blood Adv 2018; 2:14-24. [PMID: 29344581 DOI: 10.1182/bloodadvances.2017013094] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2017] [Accepted: 11/30/2017] [Indexed: 11/20/2022] Open
Abstract
Lutheran/basal cell adhesion molecule (Lu/BCAM) is a transmembrane adhesion molecule expressed by erythrocytes and endothelial cells that can interact with the extracellular matrix protein laminin-α5. In sickle cell disease, Lu/BCAM is thought to contribute to adhesion of sickle erythrocytes to the vascular wall, especially during vaso-occlusive crises. On healthy erythrocytes however, its function is unclear. Here we report that Lu/BCAM is activated during erythrocyte aging. We show that Lu/BCAM-mediated binding to laminin-α5 is restricted by interacting, in cis, with glycophorin-C-derived sialic acid residues. Following loss of sialic acid during erythrocyte aging, Lu/BCAM is released from glycophorin-C and allowed to interact with sialic acid residues on laminin-α5. Decreased glycophorin-C sialylation, as observed in individuals lacking exon 3 of glycophorin-C, the so-called Gerbich phenotype, was found to correlate with increased Lu/BCAM-dependent binding to laminin-α5. In addition, we identified the sialic acid-binding site within the third immunoglobulin-like domain within Lu/BCAM that accounts for the interaction with glycophorin-C and laminin-α5. Last, we present evidence that neuraminidase-expressing pathogens, such as Streptococcus pneumoniae, can similarly induce Lu/BCAM-mediated binding to laminin-α5, by cleaving terminal sialic acid residues from the erythrocyte membrane. These results shed new light on the mechanisms contributing to increased adhesiveness of erythrocytes at the end of their lifespan, possibly facilitating their clearance. Furthermore, this work may contribute to understanding the pathology induced by neuraminidase-positive bacteria, because they are especially harmful to patients suffering from sickle cell disease and are associated with the occurrence of vaso-occlusive crises.
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17
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Takizawa M, Arimori T, Taniguchi Y, Kitago Y, Yamashita E, Takagi J, Sekiguchi K. Mechanistic basis for the recognition of laminin-511 by α6β1 integrin. SCIENCE ADVANCES 2017; 3:e1701497. [PMID: 28879238 PMCID: PMC5580876 DOI: 10.1126/sciadv.1701497] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2017] [Accepted: 07/25/2017] [Indexed: 05/24/2023]
Abstract
Laminins regulate diverse cellular functions through interaction with integrins. Two regions of laminins-three laminin globular domains of the α chain (LG1-3) and the carboxyl-terminal tail of the γ chain (γ-tail)-are required for integrin binding, but it remains unclear how the γ-tail contributes to the binding. We determined the crystal structure of the integrin binding fragment of laminin-511, showing that the γ-tail extends to the bottom face of LG1-3. Electron microscopic imaging combined with biochemical analyses showed that integrin binds to the bottom face of LG1-3 with the γ1-tail apposed to the metal ion-dependent adhesion site (MIDAS) of integrin β1. These findings are consistent with a model in which the γ-tail coordinates the metal ion in the MIDAS through its Glu residue.
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Affiliation(s)
- Mamoru Takizawa
- Division of Matrixome Research and Application, Institute for Protein Research, Osaka University, 3-2 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Takao Arimori
- Laboratory of Protein Synthesis and Expression, Institute for Protein Research, Osaka University, Suita, Osaka 565-0871, Japan
| | - Yukimasa Taniguchi
- Division of Matrixome Research and Application, Institute for Protein Research, Osaka University, 3-2 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Yu Kitago
- Laboratory of Protein Synthesis and Expression, Institute for Protein Research, Osaka University, Suita, Osaka 565-0871, Japan
| | - Erika Yamashita
- Division of Matrixome Research and Application, Institute for Protein Research, Osaka University, 3-2 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Junichi Takagi
- Laboratory of Protein Synthesis and Expression, Institute for Protein Research, Osaka University, Suita, Osaka 565-0871, Japan
| | - Kiyotoshi Sekiguchi
- Division of Matrixome Research and Application, Institute for Protein Research, Osaka University, 3-2 Yamadaoka, Suita, Osaka 565-0871, Japan
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18
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Taniguchi Y, Li S, Takizawa M, Oonishi E, Toga J, Yagi E, Sekiguchi K. Probing the acidic residue within the integrin binding site of laminin-511 that interacts with the metal ion-dependent adhesion site of α6β1 integrin. Biochem Biophys Res Commun 2017; 487:525-531. [PMID: 28412362 DOI: 10.1016/j.bbrc.2017.04.051] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Accepted: 04/11/2017] [Indexed: 11/18/2022]
Abstract
Laminins are major cell-adhesive proteins of basement membranes that interact with integrins in a divalent cation-dependent manner. Laminin-511 consists of α5, β1, and γ1 chains, of which three laminin globular domains of the α5 chain (α5/LG1-3) and a Glu residue in the C-terminal tail of chain γ1 (γ1-Glu1607) are required for binding to integrins. However, it remains unsettled whether the Glu residue in the γ1 tail is involved in integrin binding by coordinating the metal ion in the metal ion-dependent adhesion site of β1 integrin (β1-MIDAS), or by stabilizing the conformation of α5/LG1-3. To address this issue, we examined whether α5/LG1-3 contain an acidic residue required for integrin binding that is as critical as the Glu residue in the γ1 tail; to achieve this, we undertook exhaustive alanine substitutions of the 54 acidic residues present in α5/LG1-3 of the E8 fragment of laminin-511 (LM511E8). Most of the alanine mutants possessed α6β1 integrin binding activities comparable with wild-type LM511E8. Alanine substitution for α5-Asp3198 and Asp3219 caused mild reduction in integrin binding activity, and that for α5-Asp3218 caused severe reduction, possibly resulting from conformational perturbation of α5/LG1-3. When α5-Asp3218 was substituted with asparagine, the resulting mutant possessed significant binding activity to α6β1 integrin, indicating that α5-Asp3218 is not directly involved in integrin binding through coordination with the metal ion in β1-MIDAS. Given that substitution of γ1-Glu1607 with glutamine nullified the binding activity to α6β1 integrin, these results, taken together, support the possibility that the critical acidic residue coordinating the metal ion in β1-MIDAS is Glu1607 in the γ1 tail, but no such residue is present in α5/LG1-3.
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Affiliation(s)
- Yukimasa Taniguchi
- Institute for Protein Research, Osaka University, 3-2 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Shaoliang Li
- Institute for Protein Research, Osaka University, 3-2 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Mamoru Takizawa
- Institute for Protein Research, Osaka University, 3-2 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Eriko Oonishi
- Institute for Protein Research, Osaka University, 3-2 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Junko Toga
- Institute for Protein Research, Osaka University, 3-2 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Emiko Yagi
- Institute for Protein Research, Osaka University, 3-2 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Kiyotoshi Sekiguchi
- Institute for Protein Research, Osaka University, 3-2 Yamadaoka, Suita, Osaka 565-0871, Japan.
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19
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Pulido D, Hussain SA, Hohenester E. Crystal Structure of the Heterotrimeric Integrin-Binding Region of Laminin-111. Structure 2017; 25:530-535. [PMID: 28132784 PMCID: PMC5343747 DOI: 10.1016/j.str.2017.01.002] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2016] [Revised: 12/16/2016] [Accepted: 01/05/2017] [Indexed: 01/05/2023]
Abstract
Laminins are cell-adhesive glycoproteins that are essential for basement membrane assembly and function. Integrins are important laminin receptors, but their binding site on the heterotrimeric laminins is poorly defined structurally. We report the crystal structure at 2.13 Å resolution of a minimal integrin-binding fragment of mouse laminin-111, consisting of ∼50 residues of α1β1γ1 coiled coil and the first three laminin G-like (LG) domains of the α1 chain. The LG domains adopt a triangular arrangement, with the C terminus of the coiled coil situated between LG1 and LG2. The critical integrin-binding glutamic acid residue in the γ1 chain tail is surface exposed and predicted to bind to the metal ion-dependent adhesion site in the integrin β1 subunit. Additional contacts to the integrin are likely to be made by the LG1 and LG2 surfaces adjacent to the γ1 chain tail, which are notably conserved and free of obstructing glycans.
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Affiliation(s)
- David Pulido
- Department of Life Sciences, Imperial College London, Sir Ernst Chain Building, London SW7 2AZ, UK
| | - Sadaf-Ahmahni Hussain
- Department of Life Sciences, Imperial College London, Sir Ernst Chain Building, London SW7 2AZ, UK
| | - Erhard Hohenester
- Department of Life Sciences, Imperial College London, Sir Ernst Chain Building, London SW7 2AZ, UK.
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An Anti-Human Lutheran Glycoprotein Phage Antibody Inhibits Cell Migration on Laminin-511: Epitope Mapping of the Antibody. PLoS One 2017; 12:e0167860. [PMID: 28060819 PMCID: PMC5218393 DOI: 10.1371/journal.pone.0167860] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2016] [Accepted: 11/21/2016] [Indexed: 11/24/2022] Open
Abstract
The Lutheran glycoprotein (Lu), also known as basal cell adhesion molecule (B-CAM), is an Ig superfamily (IgSF) transmembrane receptor for laminin α5. Although Lu is not present in normal hepatocytes, its expression is significantly increased in hepatocellular carcinoma (HCC). In this study, we isolated thirteen phage antibodies to Lu from a phage library of peripheral blood from HCC patients, suggesting that these patients produced autoantibodies against endogenous Lu. To characterize the phage antibodies, we determined the Lu domains they recognize. The extracellular domain of Lu contains five IgSF domains, D1-D2-D3-D4-D5. The epitope of one phage antibody (A7) was localized to the D5 domain. The other phage antibodies recognized the D2 domain, which is also recognized by a function blocking mouse monoclonal antibody. One of the antibodies to D2 (C7) inhibited the binding of Lu to ligand, and it also prevented tumor cell migration on laminin-511 (LM-511). However, the C7 scFv purified from the periplasm fraction of bacteria did not exhibit the inhibitory effects, indicating that the scFv form could not sterically inhibit the binding of Lu to LM-511. We also identified the amino acid residues that form the epitope recognized by the C7 phage antibody. Mutagenesis studies showed that Arg247 is necessary for forming the epitope. The C7 phage antibody and its epitope may be useful for developing drugs to prevent HCC progression and/or metastasis.
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Nikitin S, Palmer D, Meldal M, Diness F. Comparative studies of adhesion peptides based on l- or d-amino acids. J Pept Sci 2016; 22:642-646. [PMID: 27580849 DOI: 10.1002/psc.2913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2016] [Revised: 08/03/2016] [Accepted: 08/04/2016] [Indexed: 11/06/2022]
Abstract
Detailed studies comparing solid-supported l- or d-amino acid adhesion peptides based on the sequence KLHRIRA were performed. Stability towards proteases and levels of cellular adhesion to the otherwise inert surface of PEGA resin were compared by using fluorescently labelled peptides. A clear difference in the peptide stability towards cleavage by subtilisin, trypsin, or papain was observed. However, all of the on-bead peptides provided an optimal surface for cell adhesion and proliferation. In long-term experiments, these properties were still found to be similar on the resins modified either with l- or with d-amino acids and unaffected by the nature of their fluorescence labelling at either terminus. These results support that the more accessible l-amino acids can be utilized for cell adhesion experiments and confirm the nonspecific interaction mechanism of cell binding to these peptides on the bead surface. Copyright © 2016 European Peptide Society and John Wiley & Sons, Ltd.
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Affiliation(s)
- Sergey Nikitin
- Center for Evolutionary Chemical Biology, University of Copenhagen, Copenhagen, Denmark.,Novosibirsk State University, 2 Pirogova St., Novosibirsk, 630090, Russia
| | - Daniel Palmer
- Center for Evolutionary Chemical Biology, University of Copenhagen, Copenhagen, Denmark
| | - Morten Meldal
- Center for Evolutionary Chemical Biology, University of Copenhagen, Copenhagen, Denmark.
| | - Frederik Diness
- Center for Evolutionary Chemical Biology, University of Copenhagen, Copenhagen, Denmark.
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Kikkawa Y, Harashima N, Ikari K, Fujii S, Katagiri F, Hozumi K, Nomizu M. Down-regulation of cell adhesion via rho-associated protein kinase (ROCK) pathway promotes tumor cell migration on laminin-511. Exp Cell Res 2016; 344:76-85. [DOI: 10.1016/j.yexcr.2016.04.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2016] [Revised: 03/15/2016] [Accepted: 04/07/2016] [Indexed: 11/30/2022]
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PS341 inhibits hepatocellular and colorectal cancer cells through the FOXO3/CTNNB1 signaling pathway. Sci Rep 2016; 6:22090. [PMID: 26915315 PMCID: PMC4768146 DOI: 10.1038/srep22090] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2015] [Accepted: 02/05/2016] [Indexed: 12/13/2022] Open
Abstract
Hepatocellular carcinoma (HCC) and colorectal cancer (CRC) are among the most common cancers across the world. Particularly, a large number of patients with CRC also have liver metastasis. Currently, there are just a few targeted drugs against these two kinds of tumors which can only benefit a very small population of patients. Therefore, the need of more effective therapeutic drugs or strategies for these two types of cancers is urgent. PS341 (Bortezomib) is the first proteasome inhibitor drug which has been approved in clinical treatment for multiple myeloma. Here we demonstrated that PS341 negatively regulated HCC and CRC both in vitro and in vivo, including the inhibition of cell proliferation, epithelial-mesenchymal transition (EMT), the expression of stemness-related genes, cell migration and invasiveness. Mechanically, PS341 upregulated the expression of FOXO3, which inhibited the transcriptional activation of CTNNB1. The downregualtion of CTNNB1 led to apoptosis, cell cycle arrest, and the inhibition of migration, invasion, self-renewal and tumor formation of these two cancer types. In sum, our findings shed light on the PS341 mediated targeted therapy against both HCC and CRC in the future.
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Yamada M, Sekiguchi K. Molecular Basis of Laminin-Integrin Interactions. CURRENT TOPICS IN MEMBRANES 2015; 76:197-229. [PMID: 26610915 DOI: 10.1016/bs.ctm.2015.07.002] [Citation(s) in RCA: 93] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Laminins are composed of three polypeptide chains, designated as α, β, and γ. The C-terminal region of laminin heterotrimers, containing coiled-coil regions, short tails, and laminin globular (LG) domains, is necessary and sufficient for binding to integrins, which are the major laminin receptor class. Laminin recognition by integrins critically requires the α chain LG domains and a glutamic acid residue of the γ chain at the third position from the C-terminus. Furthermore, the C-terminal region of the β chain contains a short amino acid sequence that modulates laminin affinity for integrins. Thus, all three of the laminin chains act cooperatively to facilitate integrin binding. Mammals possess 5 α (α1-5), 3 β (β1-3), and 3 γ (γ1-3) chains, combinations of which give rise to 16 distinct laminin isoforms. Each isoform is expressed in a tissue-specific and developmental stage-specific manner, exerting its functions through binding of integrins. In this review, we detail the current knowledge surrounding the molecular basis and physiological relevance of specific interactions between laminins and integrins, and describe the mechanisms underlying laminin action through integrins.
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Affiliation(s)
- Masashi Yamada
- Laboratory of Extracellular Matrix Biochemistry, Institute for Protein Research, Osaka University, Suita, Osaka, Japan
| | - Kiyotoshi Sekiguchi
- Laboratory of Extracellular Matrix Biochemistry, Institute for Protein Research, Osaka University, Suita, Osaka, Japan
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25
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Levy AD, Omar MH, Koleske AJ. Extracellular matrix control of dendritic spine and synapse structure and plasticity in adulthood. Front Neuroanat 2014; 8:116. [PMID: 25368556 PMCID: PMC4202714 DOI: 10.3389/fnana.2014.00116] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2014] [Accepted: 09/29/2014] [Indexed: 12/20/2022] Open
Abstract
Dendritic spines are the receptive contacts at most excitatory synapses in the central nervous system. Spines are dynamic in the developing brain, changing shape as they mature as well as appearing and disappearing as they make and break connections. Spines become much more stable in adulthood, and spine structure must be actively maintained to support established circuit function. At the same time, adult spines must retain some plasticity so their structure can be modified by activity and experience. As such, the regulation of spine stability and remodeling in the adult animal is critical for normal function, and disruption of these processes is associated with a variety of late onset diseases including schizophrenia and Alzheimer's disease. The extracellular matrix (ECM), composed of a meshwork of proteins and proteoglycans, is a critical regulator of spine and synapse stability and plasticity. While the role of ECM receptors in spine regulation has been extensively studied, considerably less research has focused directly on the role of specific ECM ligands. Here, we review the evidence for a role of several brain ECM ligands and remodeling proteases in the regulation of dendritic spine and synapse formation, plasticity, and stability in adults.
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Affiliation(s)
- Aaron D Levy
- Interdepartmental Neuroscience Program, Yale University New Haven, CT, USA ; Department of Molecular Biophysics and Biochemistry, Yale University New Haven, CT, USA
| | - Mitchell H Omar
- Interdepartmental Neuroscience Program, Yale University New Haven, CT, USA ; Department of Molecular Biophysics and Biochemistry, Yale University New Haven, CT, USA
| | - Anthony J Koleske
- Interdepartmental Neuroscience Program, Yale University New Haven, CT, USA ; Department of Molecular Biophysics and Biochemistry, Yale University New Haven, CT, USA ; Department of Neurobiology, Yale University New Haven, CT, USA
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26
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Kikkawa Y, Miwa T, Tanimizu N, Kadoya Y, Ogawa T, Katagiri F, Hozumi K, Nomizu M, Mizuguchi T, Hirata K, Mitaka T. Soluble Lutheran/basal cell adhesion molecule is detectable in plasma of hepatocellular carcinoma patients and modulates cellular interaction with laminin-511 in vitro. Exp Cell Res 2014; 328:197-206. [DOI: 10.1016/j.yexcr.2014.07.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2014] [Revised: 07/05/2014] [Accepted: 07/11/2014] [Indexed: 11/26/2022]
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27
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Ishikawa T, Wondimu Z, Oikawa Y, Gentilcore G, Kiessling R, Egyhazi Brage S, Hansson J, Patarroyo M. Laminins 411 and 421 differentially promote tumor cell migration via α6β1 integrin and MCAM (CD146). Matrix Biol 2014; 38:69-83. [PMID: 24951930 DOI: 10.1016/j.matbio.2014.06.002] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2014] [Revised: 06/09/2014] [Accepted: 06/12/2014] [Indexed: 12/23/2022]
Abstract
α4-laminins, such as laminins 411 and 421, are mesenchymal laminins expressed by blood and lymphatic vessels and some tumor cells. Laminin-411 promotes migration of leukocytes and endothelial cells, but the effect of this laminin and laminin-421 on tumor cells is poorly understood. In the present study, we demonstrate that laminin-411 and, to a greater extent, laminin-421 significantly promote migration of tumor cells originated from melanomas, gliomas and different carcinomas via α6β1 integrin. In solid-phase binding assays, both laminins similarly bound α6β1 integrin but only laminin-421, among several laminin isoforms, readily bound MCAM (CD146), a cell-surface adhesion molecule strongly associated with tumor progression. Accordingly, a function-blocking mAb to MCAM inhibited tumor cell migration on laminin-421 but not on laminins 411 or 521. In tumor tissues, melanoma cells co-expressed MCAM, laminin α4, β1, β2 and γ1 chains, and integrin α6 and β1 chains. The present data highlight the novel role of α4-laminins in tumor cell migration and identify laminin-421 as a primary ligand for MCAM and a putative mediator of tumor invasion and metastasis.
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Affiliation(s)
- Taichi Ishikawa
- Department of Dental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Zenebech Wondimu
- Department of Dental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Yuko Oikawa
- Department of Dental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Giusy Gentilcore
- Department of Oncology-Pathology, Karolinska Institutet, Stockholm, Sweden
| | - Rolf Kiessling
- Department of Oncology-Pathology, Karolinska Institutet, Stockholm, Sweden
| | | | - Johan Hansson
- Department of Oncology-Pathology, Karolinska Institutet, Stockholm, Sweden
| | - Manuel Patarroyo
- Department of Dental Medicine, Karolinska Institutet, Stockholm, Sweden.
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Monoclonal antibodies to human laminin α4 chain globular domain inhibit tumor cell adhesion and migration on laminins 411 and 421, and binding of α6β1 integrin and MCAM to α4-laminins. Matrix Biol 2014; 36:5-14. [DOI: 10.1016/j.matbio.2014.03.003] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2013] [Revised: 03/17/2014] [Accepted: 03/19/2014] [Indexed: 12/23/2022]
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29
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Overexpression of EMMPRIN isoform 2 is associated with head and neck cancer metastasis. PLoS One 2014; 9:e91596. [PMID: 24705283 PMCID: PMC3976259 DOI: 10.1371/journal.pone.0091596] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2013] [Accepted: 02/12/2014] [Indexed: 01/19/2023] Open
Abstract
Extracellular matrix metalloproteinase inducer (EMMPRIN), a plasma membrane protein of the immunoglobulin (Ig) superfamily, has been reported to promote cancer cell invasion and metastasis in several human malignancies. However, the roles of the different EMMPRIN isoforms and their associated mechanisms in head and neck cancer progression remain unknown. Using quantitative real-time PCR, we found that EMMPRIN isoform 2 (EMMPRIN-2) was the only isoform that was overexpressed in both head and neck cancer tissues and cell lines and that it was associated with head and neck cancer metastasis. To determine the effects of EMMPRIN-2 on head and neck cancer progression, we transfected head and neck cancer cells with an EMMPRIN-2 expression vector and EMMPRIN-2 siRNA to exogenously modulate EMMPRIN-2 expression and examined the functional importance of EMMPRIN-2 in head and neck cancer invasion and metastasis. We found that EMMPRIN-2 promoted head and neck cancer cell invasion, migration, and adhesion in vitro and increased lung metastasis in vivo. Mechanistic studies revealed that EMMPRIN-2 overexpression promoted the secretion of extracellular signaling molecules, including matrix metalloproteinases-2(MMP-2), urokinase-type plasminogen activator(uPA) and Cathepsin B, in head and neck cancer cells. While MMP-2 and uPA have been demonstrated to be important mediators of EMMPRIN signaling, the role of Cathepsin B in EMMPRIN-mediated molecular cascades and tumorigenesis has not been established. We found that EMMPRIN-2 overexpression and Cathepsin B down-regulation significantly inhibited the invasion, migration and adhesion of Tca8133 cells, suggesting that Cathepsin B is required for EMMPRIN-2 enhanced cell migration and invasion in head and neck cancer. The results of our study demonstrate the important role of EMMPRIN-2 in head and neck cancer progression for the first time and reveal that increased extracellular secretion of Cathepsin B may be a novel mechanism underlying EMMPRIN-2 enhanced tumor progression in head and neck cancer.
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30
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Suleiman H, Zhang L, Roth R, Heuser JE, Miner JH, Shaw AS, Dani A. Nanoscale protein architecture of the kidney glomerular basement membrane. eLife 2013; 2:e01149. [PMID: 24137544 PMCID: PMC3790497 DOI: 10.7554/elife.01149] [Citation(s) in RCA: 119] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2013] [Accepted: 09/02/2013] [Indexed: 12/12/2022] Open
Abstract
In multicellular organisms, proteins of the extracellular matrix (ECM) play structural and functional roles in essentially all organs, so understanding ECM protein organization in health and disease remains an important goal. Here, we used sub-diffraction resolution stochastic optical reconstruction microscopy (STORM) to resolve the in situ molecular organization of proteins within the kidney glomerular basement membrane (GBM), an essential mediator of glomerular ultrafiltration. Using multichannel STORM and STORM-electron microscopy correlation, we constructed a molecular reference frame that revealed a laminar organization of ECM proteins within the GBM. Separate analyses of domains near the N- and C-termini of agrin, laminin, and collagen IV in mouse and human GBM revealed a highly oriented macromolecular organization. Our analysis also revealed disruptions in this GBM architecture in a mouse model of Alport syndrome. These results provide the first nanoscopic glimpse into the organization of a complex ECM. DOI:http://dx.doi.org/10.7554/eLife.01149.001.
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Affiliation(s)
- Hani Suleiman
- Department of Pathology and Immunology , Washington University School of Medicine , St. Louis , United States
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31
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Kikkawa Y, Ogawa T, Sudo R, Yamada Y, Katagiri F, Hozumi K, Nomizu M, Miner JH. The lutheran/basal cell adhesion molecule promotes tumor cell migration by modulating integrin-mediated cell attachment to laminin-511 protein. J Biol Chem 2013; 288:30990-1001. [PMID: 24036115 DOI: 10.1074/jbc.m113.486456] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Cell-matrix interactions are critical for tumor cell migration. Lutheran (Lu), also known as basal cell adhesion molecule (B-CAM), competes with integrins for binding to laminin α5, a subunit of LM-511, a major component of basement membranes. Here we show that the preferential binding of Lu/B-CAM to laminin α5 promotes tumor cell migration. The attachment of Lu/B-CAM transfectants to LM-511 was slightly weaker than that of control cells, and this was because Lu/B-CAM disturbed integrin binding to laminin α5. Lu/B-CAM induced a spindle cell shape with pseudopods and promoted cell migration on LM-511. In addition, blocking with an anti-Lu/B-CAM antibody led to a flat cell shape and inhibited migration on LM-511, similar to the effects of an activating integrin β1 antibody. We conclude that tumor cell migration on LM-511 requires that Lu/B-CAM competitively modulates cell attachment through integrins. We suggest that this competitive interaction is involved in a balance between static and migratory cell behaviors.
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Affiliation(s)
- Yamato Kikkawa
- From the Laboratory of Clinical Biochemistry, Tokyo University of Pharmacy and Life Sciences, Hachioji, 192-0392, Japan
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32
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Sachs N, Sonnenberg A. Cell-matrix adhesion of podocytes in physiology and disease. Nat Rev Nephrol 2013; 9:200-10. [PMID: 23338211 DOI: 10.1038/nrneph.2012.291] [Citation(s) in RCA: 107] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Cell-matrix adhesion is crucial for maintaining the mechanical integrity of epithelial tissues. Podocytes--a key component of the glomerular filtration barrier--are exposed to permanent transcapillary filtration pressure and must therefore adhere tightly to the underlying glomerular basement membrane (GBM). The major cell-matrix adhesion receptor in podocytes is the integrin α3β1, which connects laminin 521 in the GBM through various adaptor proteins to the intracellular actin cytoskeleton. Other cell-matrix adhesion receptors expressed by podocytes include the integrins α2β1 and αvβ3, α-dystroglycan, syndecan-4 and type XVII collagen. Mutations in genes encoding any of the components critical for podocyte adhesion cause glomerular disease. This Review highlights recent advances in our understanding of the cell biology and genetics of podocyte adhesion with special emphasis on glomerular disease.
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Affiliation(s)
- Norman Sachs
- Division of Cell Biology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
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33
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Wondimu Z, Omrani S, Ishikawa T, Javed F, Oikawa Y, Virtanen I, Juronen E, Ingerpuu S, Patarroyo M. A novel monoclonal antibody to human laminin α5 chain strongly inhibits integrin-mediated cell adhesion and migration on laminins 511 and 521. PLoS One 2013; 8:e53648. [PMID: 23308268 PMCID: PMC3538678 DOI: 10.1371/journal.pone.0053648] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2012] [Accepted: 11/30/2012] [Indexed: 11/28/2022] Open
Abstract
Laminins, a large family of αβγ heterotrimeric proteins mainly found in basement membranes, are strong promoters of adhesion and migration of multiple cell types, such as tumor and immune cells, via several integrin receptors. Among laminin α (LMα) chains, α5 displays the widest tissue distribution in adult life and is synthesized by most cell types. Here, we have generated and characterized five novel monoclonal antibodies (mAbs) to the human LMα5 chain to further study the biological relevance of α5 laminins, such as laminins 511 (α5β1γ1) and 521 (α5β2γ1). As detected by ELISA, immunohistochemistry, immunoprecipitation and Western blotting, each antibody displayed unique properties when compared to mAb 4C7, the prototype LMα5 antibody. Of greatest interest, mAb 8G9, but not any other antibody, strongly inhibited α3β1/α6β1 integrin-mediated adhesion and migration of glioma, melanoma, and carcinoma cells on laminin-511 and, together with mAb 4C7, on laminin-521. Accordingly, mAb 8G9 abolished the interaction of soluble α3β1 integrin with immobilized laminins 511 and 521. Binding of mAb 8G9 to laminin-511 was unaffected by the other mAbs to the LMα5 chain but largely hindered by mAb 4E10 to a LMβ1 chain epitope near the globular domain of laminin-511. Thus, mAb 8G9 defines a novel epitope localized at or near the integrin-binding globular domain of the LMα5 chain, which is essential for cell adhesion and migration, and identifies a potential therapeutic target in malignant and inflammatory diseases.
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Affiliation(s)
- Zenebech Wondimu
- Department of Dental Medicine, Karolinska Institutet, Stockholm, Sweden
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34
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Pouliot N, Kusuma N. Laminin-511: a multi-functional adhesion protein regulating cell migration, tumor invasion and metastasis. Cell Adh Migr 2012; 7:142-9. [PMID: 23076212 PMCID: PMC3544778 DOI: 10.4161/cam.22125] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Laminins are major constituents of basement membranes. At least 16 isoforms have now been described, each with distinct spatio-temporal expression patterns and functions. The laminin-511 heterotrimer (α5β1γ1) is one of the more recent isoforms to be identified and a potent adhesive and pro-migratory substrate for a variety of normal and tumor cell lines in vitro. As our understanding of its precise function in normal tissues and in pathologies is rapidly unraveling, current evidence suggests an important regulatory role in cancer. This review describes published data on laminin-511 expression in several malignancies and experimental evidence from both in vitro and in vivo studies supporting its functional role during tumor progression. A particular emphasis is put on more recent studies from our laboratory and that of others indicating that laminin-511 contributes to tumor dissemination and metastasis in advanced breast carcinomas and other tumor types. Collectively, the experimental evidence suggests that high expression of laminin-511 has prognostic significance and that targeting tumor-laminin-511 interactions may have therapeutic potential in advanced cancer patients.
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Affiliation(s)
- Normand Pouliot
- Metastasis Research Laboratory, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia.
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35
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Abstract
The heterotrimeric laminins are a defining component of all basement membranes and self-assemble into a cell-associated network. The three short arms of the cross-shaped laminin molecule form the network nodes, with a strict requirement for one α, one β and one γ arm. The globular domain at the end of the long arm binds to cellular receptors, including integrins, α-dystroglycan, heparan sulfates and sulfated glycolipids. Collateral anchorage of the laminin network is provided by the proteoglycans perlecan and agrin. A second network is then formed by type IV collagen, which interacts with the laminin network through the heparan sulfate chains of perlecan and agrin and additional linkage by nidogen. This maturation of basement membranes becomes essential at later stages of embryo development.
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36
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Spenlé C, Simon-Assmann P, Orend G, Miner JH. Laminin α5 guides tissue patterning and organogenesis. Cell Adh Migr 2012; 7:90-100. [PMID: 23076210 PMCID: PMC3544791 DOI: 10.4161/cam.22236] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Laminins (LM) are extracellular matrix molecules that contribute to and are required for the formation of basement membranes. They participate in the modulation of epithelial/mesenchymal interactions and are implicated in organogenesis and maintenance of organ homeostasis. Among the LM molecules, the LM α5 chain (LMα5) is one of the most widely distributed LM in the developing and mature organism. Its presence in some basement membranes during embryogenesis is absolutely required for maintenance of basement membrane integrity and thus for proper organogenesis. LMα5 also regulates the expression of genes important for major biological processes, in part by repressing or activating signaling pathways, depending upon the physiological context.
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37
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Tanimizu N, Kikkawa Y, Mitaka T, Miyajima A. α1- and α5-containing laminins regulate the development of bile ducts via β1 integrin signals. J Biol Chem 2012; 287:28586-97. [PMID: 22761447 PMCID: PMC3436529 DOI: 10.1074/jbc.m112.350488] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2012] [Revised: 06/24/2012] [Indexed: 12/31/2022] Open
Abstract
Signals derived from basal lamina components are important for developing three-dimensional architecture of epithelial tissues. Laminins consisting of α, β, and γ subunits in basal lamina play pivotal roles in the formation and maintenance of epithelial tissue structures. However, it remains unclear which laminin isoforms transmit signals and how epithelial cells receive them to regulate multiple developmental processes. In three-dimensional culture of a liver progenitor cell line, Hepatic Progenitor Cells Proliferating on Laminin (HPPL), the cells establish apicobasal polarity and form cysts with a central lumen. Neutralizing antibody against β1 integrin blocked the formation and maintenance of the cyst structure, indicating that β1 integrin signaling was necessary throughout the morphogenesis. Although the addition of α1-containing laminin, a ligand of β1 integrin, induced cyst formation, it was dispensable for the maintenance of the cyst, suggesting that HPPL produces another ligand for β1 integrin to maintain the structure. Indeed, we found that HPPL produced α5-containing laminin, and siRNA against laminin α5 partially inhibited the lumen formation. In fetal liver, p75NTR(+) periportal fibroblasts and bile duct epithelial cells, known as cholangiocytes, expressed α1- and α5-containing laminins, respectively. In laminin α5 KO liver, cholangiocytes normally emerged, but the number of bile ducts was decreased. These results suggest that α1-containing laminin is sufficient as a component of the basal lamina for the commitment of bipotential liver progenitors to cholangiocytes and the apicobasal polarization, whereas α5-containing laminin is necessary for the formation of mature duct structures. Thus, α1- and α5-containing laminins differentially regulate the sequential events to form epithelial tissues via β1 integrin signals.
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Affiliation(s)
- Naoki Tanimizu
- From the Department of Tissue Development and Regeneration, Research Institute for Frontier Medicine, Sapporo Medical University School of Medicine, S-1, W-17, Chuo-ku, Sapporo, 060-8556, Japan
- Institute of Molecular and Cellular Biosciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-0032, Japan
| | - Yamato Kikkawa
- Laboratory of Clinical Biochemistry, Tokyo University of Pharmacy and Life Sciences, Hachioji 192-0392, Japan, and
| | - Toshihiro Mitaka
- From the Department of Tissue Development and Regeneration, Research Institute for Frontier Medicine, Sapporo Medical University School of Medicine, S-1, W-17, Chuo-ku, Sapporo, 060-8556, Japan
| | - Atsushi Miyajima
- Institute of Molecular and Cellular Biosciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-0032, Japan
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38
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Katagiri F, Sudo M, Hamakubo T, Hozumi K, Nomizu M, Kikkawa Y. Identification of active sequences in the L4a domain of laminin α5 promoting neurite elongation. Biochemistry 2012; 51:4950-8. [PMID: 22621685 DOI: 10.1021/bi300214g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Laminin α5 is an extracellular matrix protein containing multiple domains implicated in various biological processes, such as embryogenesis and renal function. In this study, we used recombinant proteins and synthetic peptides to identify amino acid residues within the short arm region of α5 that were critical for neurite outgrowth activity. The short arm of α5 contains three globular domains (LN, L4a, and L4b) and three rodlike elements (LEa, LEb, and LEc). Recombinant proteins comprised of the α5 short arm fused with a Fc tag produced in 293 cells were assayed for PC12 (pheochromocytoma) cell adhesion and neurite outgrowth activities. Although it did not have cell attachment activity, neurite outgrowth was promoted by the recombinant protein. To narrow the region involved in neurite outgrowth activity, two truncated recombinant proteins were produced in 293 cells. A recombinant protein lacking L4a and LEb lost activity. Furthermore, we synthesized 78 partially overlapping peptides representing most of the amino acid sequences of L4a and LEb. Of the peptides, A5-76 [mouse laminin α5 928-939 (TSPDLFRLVFRY) in L4a] exhibited neurite outgrowth activity. Mutagenesis studies showed that Phe(933) and Arg(934) were involved in neurite outgrowth activity. Moreover, inhibition assays using anti-integrin monoclonal antibodies showed that neurite outgrowth on the α5 short arm was partially mediated by integrin α1β1. However, the antibodies to integrin α1 and β1 did not inhibit neurite elongation on the A5-76 peptide. These results suggest that in addition to cellular interactions with the active site in the L4a domain, the binding of integrin α1β1 seems to modulate neurite elongation on the short arm of α5.
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Affiliation(s)
- Fumihiko Katagiri
- Laboratory of Clinical Biochemistry, Tokyo University of Pharmacy and Life Sciences, Tokyo 192-0392, Japan
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Katagiri F, Ishikawa M, Yamada Y, Hozumi K, Kikkawa Y, Nomizu M. Screening of integrin-binding peptides from the laminin α4 and α5 chain G domain peptide library. Arch Biochem Biophys 2012; 521:32-42. [PMID: 22391228 DOI: 10.1016/j.abb.2012.02.017] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2012] [Revised: 02/22/2012] [Accepted: 02/23/2012] [Indexed: 02/09/2023]
Abstract
Laminins, a multifunctional protein family of extracellular matrix, interact with various types of integrin. Here, integrin-mediated cell adhesive peptides have been systematically screened in the laminin α4 and α5 chain G domain peptide library consisting of 211 peptides by both the peptide-coated plastic plates and peptide-conjugated Sepharose bead assays using human dermal fibroblasts. Thirteen peptides promoted cell spreading and the activity was specifically inhibited by EDTA. Cell attachment to 11 peptides was inhibited by anti-integrin β1 antibody. Additionally, cell attachment to the A5G81 (AGQWHRVSVRWG) and A5G84 (TWSQKALHHRVP) peptides was specifically inhibited by anti-integrin α3 and α6 antibodies. These results suggest that the A5G81 and A5G84 peptides promote integrin α3β1- and α6β1-mediated cell attachment. Further, most of the integrin-mediated cell adhesive peptides are located in the loop regions in the G domains, suggesting that structure is important for the integrin specific recognition. Integrin binding peptides are useful for understanding laminin functions and have a potential to use for biomaterials and drug development.
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Affiliation(s)
- Fumihiko Katagiri
- Laboratory of Clinical Biochemistry, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
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Meldal M, Wu B, Diness F, Michael R, Hagel G. Metabolically Stable Cellular Adhesion to Inert Surfaces. Chembiochem 2011; 12:2463-70. [DOI: 10.1002/cbic.201100382] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2011] [Indexed: 02/03/2023]
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An antibody to the lutheran glycoprotein (Lu) recognizing the LU4 blood type variant inhibits cell adhesion to laminin α5. PLoS One 2011; 6:e23329. [PMID: 21858073 PMCID: PMC3155534 DOI: 10.1371/journal.pone.0023329] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2011] [Accepted: 07/13/2011] [Indexed: 11/23/2022] Open
Abstract
Background The Lutheran blood group glycoprotein (Lu), an Ig superfamily (IgSF) transmembrane receptor, is also known as basal cell adhesion molecule (B-CAM). Lu/B-CAM is a specific receptor for laminin α5, a major component of basement membranes in various tissues. Previous reports have shown that Lu/B-CAM binding to laminin α5 contributes to sickle cell vaso-occlusion. However, as there are no useful tools such as function-blocking antibodies or drugs, it is unclear how epithelial and sickled red blood cells adhere to laminin α5 via Lu/B-CAM. Methodology/Principal Findings In this study, we discovered a function-blocking antibody that inhibits Lu binding to laminin α5 using a unique binding assay on tissue sections. To characterize the function-blocking antibody, we identified the site on Lu/B-CAM recognized by this antibody. The extracellular domain of Lu/B-CAM contains five IgSF domains, D1-D2-D3-D4-D5. The antibody epitope was localized to D2, but not to the D3 domain containing the major part of the laminin α5 binding site. Furthermore, mutagenesis studies showed that Arg175, the LU4 blood group antigenic site, was crucial for forming the epitope and the antibody bound sufficiently close to sterically hinder the interaction with α5. Cell adhesion assay using the antibody also showed that Lu/B-CAM serves as a secondary receptor for the adhesion of carcinoma cells to laminin α5. Conclusion/Significance This function-blocking antibody against Lu/B-CAM should be useful for not only investigating cell adhesion to laminin α5 but also for developing drugs to inhibit sickle cell vaso-occlusion.
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Carafoli F, Clout NJ, Hohenester E. Crystal structure of the LG1-3 region of the laminin alpha2 chain. J Biol Chem 2009; 284:22786-92. [PMID: 19553699 PMCID: PMC2755686 DOI: 10.1074/jbc.m109.026658] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2009] [Revised: 05/28/2009] [Indexed: 11/17/2022] Open
Abstract
Laminins are large heterotrimeric glycoproteins with many essential functions in basement membrane assembly and function. Cell adhesion to laminins is mediated by a tandem of five laminin G-like (LG) domains at the C terminus of the alpha chain. Integrin binding requires an intact LG1-3 region, as well as contributions from the coiled coil formed by the alpha, beta, and gamma chains. We have determined the crystal structure at 2.8-A resolution of the LG1-3 region of the laminin alpha2 chain (alpha 2LG1-3). The three LG domains adopt typical beta-sandwich folds, with canonical calcium binding sites in LG1 and LG2. LG2 and LG3 interact through a substantial interface, but LG1 is completely dissociated from the LG2-3 pair. We suggest that the missing gamma chain tail may be required to stabilize the interaction between LG1 and LG2-3 in the biologically active conformation. A global analysis of N-linked glycosylation sites shows that the beta-sandwich faces of LG1 are free of carbohydrate modifications in all five laminin alpha chains, suggesting that these surfaces may harbor the integrin binding site. The alpha 2LG1-3 structure provides the first atomic view of the integrin binding region of laminins.
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Affiliation(s)
- Federico Carafoli
- From the Department of Life Sciences, Imperial College London, London SW7 2AZ, United Kingdom
| | - Naomi J. Clout
- From the Department of Life Sciences, Imperial College London, London SW7 2AZ, United Kingdom
| | - Erhard Hohenester
- From the Department of Life Sciences, Imperial College London, London SW7 2AZ, United Kingdom
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Niiya D, Egawa N, Sakamoto T, Kikkawa Y, Shinkawa T, Isobe T, Koshikawa N, Seiki M. Identification and characterization of Lutheran blood group glycoprotein as a new substrate of membrane-type 1 matrix metalloproteinase 1 (MT1-MMP): a systemic whole cell analysis of MT1-MMP-associating proteins in A431 cells. J Biol Chem 2009; 284:27360-9. [PMID: 19667067 DOI: 10.1074/jbc.m109.029124] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
Membrane-type 1 matrix metalloproteinase 1 (MT1-MMP) is a potent modulator of the pericellular microenvironment and regulates cellular functions in physiological and pathological settings in mammals. MT1-MMP mediates its biological effects through cleavage of specific substrate proteins. However, our knowledge of MT1-MMP substrates remains limited. To identify new substrates of MT1-MMP, we purified proteins associating with MT1-MMP in human epidermoid carcinoma A431 cells and analyzed them by mass spectrometry. We identified 163 proteins, including membrane proteins, cytoplasmic proteins, and functionally unknown proteins. Sixty-four membrane proteins were identified, and they included known MT1-MMP substrates. Of these, eighteen membrane proteins were selected, and we confirmed their association with MT1-MMP using an immunoprecipitation assay. Co-expression of each protein together with MT1-MMP revealed that nine proteins were cleaved by MT1-MMP. Lutheran blood group glycoprotein (Lu) is one of the proteins cleaved by MT1-MMP, and we confirmed the cleavage of the endogenous Lu protein by endogenous MT1-MMP in A431 cells. Mutation of the cleavage site of Lu abrogated processing by MT1-MMP. Lu protein expressed in A431 cells bound to laminin-511, and knockdown of MT1-MMP in these cells increased both their binding to laminin-511 and the amount of Lu protein on the cell surface. Thus, the identified membrane proteins associated with MT1-MMP are an enriched source of physiological MT1-MMP substrates.
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Affiliation(s)
- Daigo Niiya
- Division of Cancer Cell Research, Institute of Medical Science, The University of Tokyo, Shirokanedai, Minato-ku, Tokyo 108-8639, Japan
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Taniguchi Y, Ido H, Sanzen N, Hayashi M, Sato-Nishiuchi R, Futaki S, Sekiguchi K. The C-terminal region of laminin beta chains modulates the integrin binding affinities of laminins. J Biol Chem 2009; 284:7820-31. [PMID: 19147489 DOI: 10.1074/jbc.m809332200] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Laminins are major cell-adhesive proteins in basement membranes that are capable of binding to integrins. Laminins consist of three chains (alpha, beta, and gamma), in which three laminin globular modules in the alpha chain and the Glu residue in the C-terminal tail of the gamma chain have been shown to be prerequisites for binding to integrins. However, it remains unknown whether any part of the beta chain is involved in laminin-integrin interactions. We compared the binding affinities of pairs of laminin isoforms containing the beta1 or beta2 chain toward a panel of laminin-binding integrins, and we found that beta2 chain-containing laminins (beta2-laminins) bound more avidly to alpha3beta1 and alpha7X2beta1 integrins than beta1 chain-containing laminins (beta1-laminins), whereas alpha6beta1, alpha6beta4, and alpha7X1beta1 integrins did not show any preference toward beta2-laminins. Because alpha3beta1 contains the "X2-type" variable region in the alpha3 subunit and alpha6beta1 and alpha6beta4 contain the "X1-type" region in the alpha6 subunit, we hypothesized that only integrins containing the X2-type region were capable of discriminating between beta1-laminins and beta2-laminins. In support of this possibility, a putative X2-type variant of alpha6beta1 was produced and found to bind preferentially to beta2-laminins. Production of a series of swap mutants between the beta1 and beta2 chains revealed that the C-terminal 20 amino acids in the coiled-coil domain were responsible for the enhanced integrin binding by beta2-laminins. Taken together, the results provide evidence that the C-terminal region of beta chains is involved in laminin recognition by integrins and modulates the binding affinities of laminins toward X2-type integrins.
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Affiliation(s)
- Yukimasa Taniguchi
- Laboratory of Extracellular Matrix Biochemistry, Institute for Protein Research, Osaka University, 3-2 Yamadaoka, Suita, Osaka 565-0871, Japan
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Vuoristo S, Virtanen I, Takkunen M, Palgi J, Kikkawa Y, Rousselle P, Sekiguchi K, Tuuri T, Otonkoski T. Laminin isoforms in human embryonic stem cells: synthesis, receptor usage and growth support. J Cell Mol Med 2008; 13:2622-2633. [PMID: 19397785 DOI: 10.1111/j.1582-4934.2008.00643.x] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
To reveal the functional intrinsic niche of human embryonic stem cells (hESC) we examined the production of basement membrane (BM) proteins and the presence of their receptors in feeder-free cell culture conditions. In addition, we investigated binding of hESCs to purified human BM proteins and identified the receptors mediating these contacts. Also, we tested whether purified human laminin (Lm) isoforms have a role in hESC self-renewal and growth in short-term cultures. The results show that hESCs synthesize Lm alpha(1) and Lm alpha(5) chains together with Lm beta(1) and gamma(1) chains suggesting the production of Lms-111 and -511 into the culture medium and deposits on cells. hESCs contain functionally important integrin (Int) subunits, Int beta(1), alpha(3), alpha(6), alpha(5), beta(5) and alpha(V), as well as the Lm alpha(5) receptor, Lutheran (Lu) glycoprotein and its truncated form, basal cell adhesion molecule (B-CAM). In cell adhesion experiments, Int beta(1) was crucial for adhesion to most of the purified human BM proteins. Lu/B-CAM mediated adhesion to Lm-511 together with Int alpha(3)beta(1), and was essential for the adhesion of hESCs to embryonic feeder cells. Adhesion to Lm-411 was mediated by Int alpha(6)beta(1). Lm-511 supported hESC growth in defined medium equally well as Matrigel. These results provide consequential information of the biological role of BM in hESCs, warranting further investigation of BM biology of human pluripotent stem cells.
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Affiliation(s)
- Sanna Vuoristo
- Biomedicum Stem Cell Center, University of Helsinki, Helsinki, Finland.,Hospital for Children and Adolescents, University of Helsinki, Helsinki, Finland
| | - Ismo Virtanen
- Institute of Biomedicine/Anatomy, University of Helsinki, Helsinki, Finland
| | - Minna Takkunen
- Institute of Biomedicine/Anatomy, University of Helsinki, Helsinki, Finland
| | - Jaan Palgi
- Biomedicum Stem Cell Center, University of Helsinki, Helsinki, Finland
| | - Yamato Kikkawa
- Laboratory of Clinical Biochemistry, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo, Japan
| | - Patricia Rousselle
- Institut de Biologie et Chimie des Protéines, Unité Mixte de Recherche, Institut Fédératif de Recherche BioSciences Lyon-Gerland, Lyon, France
| | - Kiyotoshi Sekiguchi
- Laboratory of Extracellular Matrix Biochemistry, Institute for Protein Research, Osaka University, Suita, Osaka, Japan
| | - Timo Tuuri
- Biomedicum Stem Cell Center, University of Helsinki, Helsinki, Finland
| | - Timo Otonkoski
- Biomedicum Stem Cell Center, University of Helsinki, Helsinki, Finland.,Hospital for Children and Adolescents, University of Helsinki, Helsinki, Finland
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Gao J, DeRouen MC, Chen CH, Nguyen M, Nguyen NT, Ido H, Harada K, Sekiguchi K, Morgan BA, Miner JH, Oro AE, Marinkovich MP. Laminin-511 is an epithelial message promoting dermal papilla development and function during early hair morphogenesis. Genes Dev 2008; 22:2111-24. [PMID: 18676816 DOI: 10.1101/gad.1689908] [Citation(s) in RCA: 88] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Hair morphogenesis takes place through reciprocal epithelial and mesenchymal signaling; however, the mechanisms controlling signal exchange are poorly understood. Laminins are extracellular proteins that play critical roles in adhesion and signaling. Here we demonstrate the mechanism of how laminin-511 controls hair morphogenesis. Dermal papilla (DP) from laminin-511 mutants showed developmental defects by E16.5, including a failure to maintain expression of the key morphogen noggin. This maintenance was critical as exogenous introduction of noggin or sonic hedgehog (Shh) produced downstream from noggin was sufficient to restore hair follicle development in lama5(-/-) (laminin-511-null) skin. Hair development required the beta1 integrin binding but not the heparin binding domain of laminin-511. Previous studies demonstrated that Shh signaling requires primary cilia, microtubule-based signaling organelles. Laminin-511 mutant DP showed decreased length and structure of primary cilia in vitro and in vivo. Laminin-511, but not laminin-111, restored primary cilia formation in lama5(-/-) mesenchyme and triggered noggin expression in an Shh- and PDGF-dependent manner. Inhibition of laminin-511 receptor beta1 integrin disrupted DP primary cilia formation as well as hair development. These studies show that epithelial-derived laminin-511 is a critical early signal that directs ciliary function and DP maintenance as a requirement for hair follicle downgrowth.
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Affiliation(s)
- Jing Gao
- Program in Epithelial Biology, Stanford University School of Medicine, Stanford, California 94305, USA
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Nishimune H, Valdez G, Jarad G, Moulson CL, Müller U, Miner JH, Sanes JR. Laminins promote postsynaptic maturation by an autocrine mechanism at the neuromuscular junction. ACTA ACUST UNITED AC 2008; 182:1201-15. [PMID: 18794334 PMCID: PMC2542479 DOI: 10.1083/jcb.200805095] [Citation(s) in RCA: 101] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
A prominent feature of synaptic maturation at the neuromuscular junction (NMJ) is the topological transformation of the acetylcholine receptor (AChR)-rich postsynaptic membrane from an ovoid plaque into a complex array of branches. We show here that laminins play an autocrine role in promoting this transformation. Laminins containing the alpha4, alpha5, and beta2 subunits are synthesized by muscle fibers and concentrated in the small portion of the basal lamina that passes through the synaptic cleft at the NMJ. Topological maturation of AChR clusters was delayed in targeted mutant mice lacking laminin alpha5 and arrested in mutants lacking both alpha4 and alpha5. Analysis of chimeric laminins in vivo and of mutant myotubes cultured aneurally demonstrated that the laminins act directly on muscle cells to promote postsynaptic maturation. Immunohistochemical studies in vivo and in vitro along with analysis of targeted mutants provide evidence that laminin-dependent aggregation of dystroglycan in the postsynaptic membrane is a key step in synaptic maturation. Another synaptically concentrated laminin receptor, Bcam, is dispensable. Together with previous studies implicating laminins as organizers of presynaptic differentiation, these results show that laminins coordinate post- with presynaptic maturation.
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Affiliation(s)
- Hiroshi Nishimune
- Department of Molecular and Cellular Biology, Harvard University, Cambridge, MA 02138, USA.
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Kikkawa Y, Sudo R, Kon J, Mizuguchi T, Nomizu M, Hirata K, Mitaka T. Laminin α5 mediates ectopic adhesion of hepatocellular carcinoma through integrins and/or Lutheran/basal cell adhesion molecule. Exp Cell Res 2008; 314:2579-90. [PMID: 18635166 DOI: 10.1016/j.yexcr.2008.05.021] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2008] [Revised: 05/28/2008] [Accepted: 05/30/2008] [Indexed: 10/22/2022]
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Burton NM, Brady RL. Molecular structure of the extracellular region of Lutheran blood group glycoprotein and location of the laminin binding site. Blood Cells Mol Dis 2008; 40:446-8. [PMID: 18302987 DOI: 10.1016/j.bcmd.2008.01.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2008] [Accepted: 01/04/2008] [Indexed: 10/22/2022]
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50
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Yamashita H, Goto C, Tajima R, Koparal AT, Kobori M, Ohki Y, Shitara K, Narita R, Toriyama K, Torii S, Niimi T, Kitagawa Y. Cryptic fragment alpha4 LG4-5 derived from laminin alpha4 chain inhibits de novo adipogenesis by modulating the effect of fibroblast growth factor-2. Dev Growth Differ 2007; 50:97-107. [PMID: 18067585 DOI: 10.1111/j.1440-169x.2007.00979.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Cleavage of the extracellular matrix (ECM) by proteolysis unmasks cryptic sites and generates novel fragments with biological activities functionally distinct from those of the intact ECM molecule. The laminin G-like (LG)4-5 fragment has been shown to be excised from the laminin alpha4 chain in various tissues. However, the functional role of this fragment has remained unknown to date. To investigate this, we prepared alpha4 LG1-3 and alpha4 LG4-5 fragments by elastase digestion of recombinant alpha4 LG1-5, and examined their effects on de novo adipogenesis in mice at the site of injection of basement membrane extract (Matrigel) and fibroblast growth factor (FGF)-2. Although the addition of whole alpha4 LG1-5 suppressed adipogenesis to some extent, the alpha4 LG4-5 fragment could strongly suppress adipogenesis at a concentration of less than 20 nm. Addition of the alpha4 LG4 module, which contains a heparin-binding region, had a suppressive effect, but this was lost in mutants with reduced heparin-binding activity. In addition, antibodies against the extracellular domain of syndecan-2 and -4, which are known receptors for the alpha4 LG4 module, suppressed adipogenesis. Thus, these results suggest that the cryptic alpha4 LG4-5 fragment derived from the laminin alpha4 chain inhibits de novo adipogenesis by modulating the effect of FGF-2 through syndecans.
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Affiliation(s)
- Hironobu Yamashita
- Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya 464-8601, Japan
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