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Ghorai T, Sarkar A, Roy A, Bhowmick B, Nayak D, Das S. Role of auto-antibodies in the mechanisms of dengue pathogenesis and its progression: a comprehensive review. Arch Microbiol 2024; 206:214. [PMID: 38616229 DOI: 10.1007/s00203-024-03954-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 03/27/2024] [Accepted: 04/02/2024] [Indexed: 04/16/2024]
Abstract
A complex interaction among virulence factors, host-genes and host immune system is considered to be responsible for dengue virus (DENV) infection and disease progression. Generation of auto-antibodies during DENV infection is a major phenomenon that plays a role in the pathophysiology of dengue hemorrhagic fever and dengue shock syndrome. Hemostasis, thrombocytopenia, hepatic endothelial dysfunction, and autoimmune blistering skin disease (pemphigus) are different clinical manifestations of dengue pathogenesis; produced due to the molecular mimicry of DENV proteins with self-antigens like coagulation factors, platelets and endothelial cell proteins. This review elaborately describes the current advancements in auto-antibody-mediated immunopathogenesis which inhibits coagulation cascade and promotes hyperfibrinolysis. Auto-antibodies like anti-endothelial cell antibodies-mediated hepatic inflammation during severe DENV infection have also been discussed. Overall, this comprehensive review provides insight to target auto-antibodies that may act as potential biomarkers for disease severity, and a ground for the development of therapeutic strategy against DENV.
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Affiliation(s)
- Tanusree Ghorai
- Virology Laboratory, DAC Regional Research Institute, Kolkata, India
| | - Avipsha Sarkar
- Virology Laboratory, DAC Regional Research Institute, Kolkata, India
| | - Anirban Roy
- Virology Laboratory, DAC Regional Research Institute, Kolkata, India
| | - Bijita Bhowmick
- Virology Laboratory, DAC Regional Research Institute, Kolkata, India
| | | | - Satadal Das
- Virology Laboratory, DAC Regional Research Institute, Kolkata, India.
- Peerless Hospital and B.K. Roy Research Centre, Kolkata, India.
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2
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Qin X, Zeng B, Sooranna SR, Li M. LAMB3 Promotes Myofibrogenesis and Cytoskeletal Reorganization in Endometrial Stromal Cells via the RhoA/ROCK1/MYL9 Pathway. Cell Biochem Biophys 2024; 82:127-137. [PMID: 37801199 PMCID: PMC10867058 DOI: 10.1007/s12013-023-01186-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Accepted: 09/23/2023] [Indexed: 10/07/2023]
Abstract
LAMB3, a major extracellular matrix and basal membrane component, is involved in wound healing. We aimed to understand its role in Asherman's syndrome (AS), which is associated with infertility, by using bioinformatics analysis and cultured endometrial stromal cells (ESCs). MRNAs extracted from tissues obtained from control subjects and patients with severe intrauterine adhesion were sequenced and subjected to bioinformatics analysis and the RhoA/ROCK1/MYL9 pathway was implicated and this subsequently studied using cultured primary ESCs. The effects of overexpression and knockdown and activation and inhibition of LAMB3 on the mesenchymal to myofibroblastic phenotypic transformation of ECCs were assessed using PCR and western blot analysis. Phalloidin was used to localize the actin cytoskeletal proteins. Silencing of LAMB3 reversed the TGF-β-induced ESC myofibroblast phenotype conversion, whereas overexpression of LAMB3 promoted this process. Activation and silencing of LAMB3 led to remodeling of the ESC cytoskeleton. Overexpression and silencing of LAMB3 caused activation and inhibition of ESCs, respectively. Y-27632 and LPA reversed the activation and inhibition of the RhoA/ROCK1/MYL9 pathway after overexpression and silencing, respectively. These results suggest that LAMB3 can regulate ESC fibrosis transformation and cytoskeleton remodeling via the RhoA/ROCK1/MYL9 pathway. This study provides a potential new target for gene therapy and drug intervention of AS.
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Affiliation(s)
- Xiaomei Qin
- Gynecology Section, Department of Obstetrics and Gynecology, The First Affiliated Hospital, Guangxi Medical University, 530000, Nanning, China
| | - Bin Zeng
- Reproductive Medical Center, The First Affiliated Hospital, Guangxi Medical University, 530000, Nanning, China
| | - Suren R Sooranna
- Department of Metabolism, Digestion and Reproduction Faculty of Medicine Imperial College London Chelsea & Westminster Hospital, London, SW10 9NH, UK
- Life Science and Clinical Research Center, Youjiang Medical University for Nationalities, Baise, China
| | - Mujun Li
- Reproductive Medical Center, The First Affiliated Hospital, Guangxi Medical University, 530000, Nanning, China.
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3
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Kim J, Mooren OL, Onken MD, Cooper JA. Septin and actin contributions to endothelial cell-cell junctions and monolayer integrity. Cytoskeleton (Hoboken) 2023; 80:228-241. [PMID: 36205643 PMCID: PMC10079785 DOI: 10.1002/cm.21732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 10/02/2022] [Accepted: 10/04/2022] [Indexed: 11/10/2022]
Abstract
Septins in endothelial cells (ECs) have important roles supporting the integrity of the endothelial monolayer. Cell-cell junctions in EC monolayers are highly dynamic, with continuous retractions and protrusions. Depletion of septins in ECs leads to disruption of cell-cell junctions, which are composed of VE-cadherin and other junctional proteins. In EC monolayers, septins are concentrated at the plasma membrane at sites of cell-cell contact, in curved- and scallop-shaped patterns. These membrane-associated septin accumulations are located in regions of positive membrane curvature, and those regions are often associated with and immediately adjacent to actin-rich protrusions with negative membrane curvature. EC septins associate directly with plasma membrane lipids, based on findings with site-specific mutations of septins in ECs, which is consistent with biochemical and cell biological studies in other systems. Loss of septins leads to disruption of the EC monolayer, and gaps form between cells. The number and breadth of cell-cell contacts and junctions decreases, and the number and frequency of retractions, ruffles, and protrusions at cell edges also decreases. In addition, loss of septins leads to decreased amounts of F-actin at the cortical membrane, along with increased amounts of F-actin in stress fibers of the cytoplasm. Endothelial monolayer disruption from loss of septins is also associated with decreased transendothelial electric resistance (TEER) and increased levels of transendothelial migration (TEM) by immune and cancer cells, owing to the gaps in the monolayer. A current working model is that assembly of septin filaments at regions of positive membrane curvature contributes to a mechanical footing or base for actin-based protrusive forces generated at adjoining regions of the membrane. Specific molecular interactions between the septin and actin components of the cytoskeleton may also be important contributors. Regulators of actin assembly may promote and support the assembly of septin filaments at the membrane, as part of a molecular feedback loop between the assembly of septin and actin filaments.
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Affiliation(s)
- Joanna Kim
- Department of Biochemistry and Molecular Biophysics, Washington University School of Medicine, St Louis, Missouri, USA
| | - Olivia L Mooren
- Department of Biochemistry and Molecular Biophysics, Washington University School of Medicine, St Louis, Missouri, USA
| | - Michael D Onken
- Department of Biochemistry and Molecular Biophysics, Washington University School of Medicine, St Louis, Missouri, USA
| | - John A Cooper
- Department of Biochemistry and Molecular Biophysics, Washington University School of Medicine, St Louis, Missouri, USA
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4
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Wang EJY, Chen IH, Kuo BYT, Yu CC, Lai MT, Lin JT, Lin LYT, Chen CM, Hwang T, Sheu JJC. Alterations of Cytoskeleton Networks in Cell Fate Determination and Cancer Development. Biomolecules 2022; 12:biom12121862. [PMID: 36551290 PMCID: PMC9775460 DOI: 10.3390/biom12121862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 12/03/2022] [Accepted: 12/10/2022] [Indexed: 12/14/2022] Open
Abstract
Cytoskeleton proteins have been long recognized as structural proteins that provide the necessary mechanical architecture for cell development and tissue homeostasis. With the completion of the cancer genome project, scientists were surprised to learn that huge numbers of mutated genes are annotated as cytoskeletal or associated proteins. Although most of these mutations are considered as passenger mutations during cancer development and evolution, some genes show high mutation rates that can even determine clinical outcomes. In addition, (phospho)proteomics study confirms that many cytoskeleton-associated proteins, e.g., β-catenin, PIK3CA, and MB21D2, are important signaling mediators, further suggesting their biofunctional roles in cancer development. With emerging evidence to indicate the involvement of mechanotransduction in stemness formation and cell differentiation, mutations in these key cytoskeleton components may change the physical/mechanical properties of the cells and determine the cell fate during cancer development. In particular, tumor microenvironment remodeling triggered by such alterations has been known to play important roles in autophagy, metabolism, cancer dormancy, and immune evasion. In this review paper, we will highlight the current understanding of how aberrant cytoskeleton networks affect cancer behaviors and cellular functions through mechanotransduction.
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Affiliation(s)
- Evan Ja-Yang Wang
- Institute of Biomedical Sciences, National Sun Yat-sen University, Kaohsiung 804201, Taiwan
| | - I-Hsuan Chen
- Department of Surgery, Kaohsiung Veterans General Hospital, Kaohsiung 813405, Taiwan
- Department of Pharmacy, College of Pharmacy and Health Care, Tajen University, Pingtung County 907391, Taiwan
- School of Medicine, National Yang-Ming Chiao Tung University, Taipei 112304, Taiwan
| | - Brian Yu-Ting Kuo
- Institute of Biomedical Sciences, National Sun Yat-sen University, Kaohsiung 804201, Taiwan
| | - Chia-Cheng Yu
- Department of Surgery, Kaohsiung Veterans General Hospital, Kaohsiung 813405, Taiwan
- Department of Pharmacy, College of Pharmacy and Health Care, Tajen University, Pingtung County 907391, Taiwan
- School of Medicine, National Yang-Ming Chiao Tung University, Taipei 112304, Taiwan
- Department of Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei 114202, Taiwan
| | - Ming-Tsung Lai
- Department of Pathology, Taichung Hospital, Ministry of Health and Welfare, Taichung 403301, Taiwan
| | - Jen-Tai Lin
- Department of Surgery, Kaohsiung Veterans General Hospital, Kaohsiung 813405, Taiwan
| | - Leo Yen-Ting Lin
- Institute of Biomedical Sciences, National Sun Yat-sen University, Kaohsiung 804201, Taiwan
| | - Chih-Mei Chen
- Human Genetic Center, China Medical University Hospital, Taichung 404327, Taiwan
| | - Tritium Hwang
- Institute of Biomedical Sciences, National Sun Yat-sen University, Kaohsiung 804201, Taiwan
| | - Jim Jinn-Chyuan Sheu
- Institute of Biomedical Sciences, National Sun Yat-sen University, Kaohsiung 804201, Taiwan
- Department of Biotechnology, Kaohsiung Medical University, Kaohsiung 807378, Taiwan
- Institute of Biopharmaceutical Sciences, National Sun Yat-sen University, Kaohsiung 804201, Taiwan
- Institute of Precision Medicine, National Sun Yat-sen University, Kaohsiung 804201, Taiwan
- Correspondence: ; Tel.: +886-7-5252000 (ext. 7102)
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Hakibilen C, Delort F, Daher MT, Joanne P, Cabet E, Cardoso O, Bourgois-Rocha F, Tian C, Rivas E, Madruga M, Ferreiro A, Lilienbaum A, Vicart P, Agbulut O, Hénon S, Batonnet-Pichon S. Desmin Modulates Muscle Cell Adhesion and Migration. Front Cell Dev Biol 2022; 10:783724. [PMID: 35350386 PMCID: PMC8957967 DOI: 10.3389/fcell.2022.783724] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Accepted: 02/09/2022] [Indexed: 12/04/2022] Open
Abstract
Cellular adhesion and migration are key functions that are disrupted in numerous diseases. We report that desmin, a type-III muscle-specific intermediate filament, is a novel cell adhesion regulator. Expression of p.R406W mutant desmin, identified in patients with desmin-related myopathy, modified focal adhesion area and expression of adhesion-signaling genes in myogenic C2C12 cells. Satellite cells extracted from desmin-knock-out (DesKO) and desmin-knock-in-p.R405W (DesKI-R405W) mice were less adhesive and migrated faster than those from wild-type mice. Moreover, we observed mislocalized and aggregated vinculin, a key component of cell adhesion, in DesKO and DesKI-R405W muscles. Vinculin expression was also increased in desmin-related myopathy patient muscles. Together, our results establish a novel role for desmin in cell-matrix adhesion, an essential process for strength transmission, satellite cell migration and muscle regeneration. Our study links the patho-physiological mechanisms of desminopathies to adhesion/migration defects, and may lead to new cellular targets for novel therapeutic approaches.
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Affiliation(s)
| | | | | | - Pierre Joanne
- Sorbonne Université, Institut de Biologie Paris-Seine (IBPS), CNRS UMR 8256, INSERM ERL U1164, Biological Adaptation and Ageing, Paris, France
| | - Eva Cabet
- Université de Paris, BFA, UMR 8251, CNRS, Paris, France
| | | | | | - Cuixia Tian
- Department of Neurology, Cincinnati Children's Hospital Medical Center, College of Medicine, University of Cincinnati, Cincinnati, OH, United States
| | - Eloy Rivas
- Servicio de Anatomia Patologica, Hospital Universitario Virgen Del Rocio, Sevilla, Spain
| | - Marcos Madruga
- Unidad de Neurologia Pediatrica, Hospital Universitario Virgen Del Rocio, Sevilla, Spain
| | - Ana Ferreiro
- Université de Paris, BFA, UMR 8251, CNRS, Paris, France.,APHP, Centre de Référence Maladies Neuromusculaires Nord/Est/Ile-de-France, Groupe Hospitalier Pitié-Salpêtrière, Paris, France
| | | | - Patrick Vicart
- Université de Paris, BFA, UMR 8251, CNRS, Paris, France.,Sorbonne Université, Institut de Biologie Paris-Seine (IBPS), CNRS UMR 8256, INSERM ERL U1164, Biological Adaptation and Ageing, Paris, France.,Université de Paris, MSC, UMR 7067, CNRS, Paris, France.,Department of Neurology, Cincinnati Children's Hospital Medical Center, College of Medicine, University of Cincinnati, Cincinnati, OH, United States.,Servicio de Anatomia Patologica, Hospital Universitario Virgen Del Rocio, Sevilla, Spain.,Unidad de Neurologia Pediatrica, Hospital Universitario Virgen Del Rocio, Sevilla, Spain.,APHP, Centre de Référence Maladies Neuromusculaires Nord/Est/Ile-de-France, Groupe Hospitalier Pitié-Salpêtrière, Paris, France
| | - Onnik Agbulut
- Sorbonne Université, Institut de Biologie Paris-Seine (IBPS), CNRS UMR 8256, INSERM ERL U1164, Biological Adaptation and Ageing, Paris, France
| | - Sylvie Hénon
- Université de Paris, MSC, UMR 7067, CNRS, Paris, France
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Liquid Biopsies: Flowing Biomarkers. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2022; 1379:341-368. [DOI: 10.1007/978-3-031-04039-9_14] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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7
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Recent Advances on Surface-modified Biomaterials Promoting Selective Adhesion and Directional Migration of Cells. CHINESE JOURNAL OF POLYMER SCIENCE 2021. [DOI: 10.1007/s10118-021-2564-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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8
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Moch M, Leube RE. Hemidesmosome-Related Keratin Filament Bundling and Nucleation. Int J Mol Sci 2021; 22:ijms22042130. [PMID: 33669958 PMCID: PMC7924876 DOI: 10.3390/ijms22042130] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2020] [Revised: 02/17/2021] [Accepted: 02/17/2021] [Indexed: 11/16/2022] Open
Abstract
The epithelial cytoskeleton encompasses actin filaments, microtubules, and keratin intermediate filaments. They are interconnected and attached to the extracellular matrix via focal adhesions and hemidesmosomes. To study their interplay, we inhibited actin and tubulin polymerization in the human keratinocyte cell line HaCaT by latrunculin B and nocodazole, respectively. Using immunocytochemistry and time-lapse imaging of living cells, we found that inhibition of actin and tubulin polymerization alone or in combination induced keratin network re-organization albeit differently in each situation. Keratin filament network retraction towards the nucleus and formation of bundled and radial keratin filaments was most pronounced in latrunculin-B treated cells but less in doubly-treated cells and not detectable in the presence of nocodazole alone. Hemidesmosomal keratin filament anchorage was maintained in each instance, whereas focal adhesions were disassembled in the absence of actin filaments. Simultaneous inhibition of actin and tubulin polymerization, therefore, allowed us to dissect hemidesmosome-specific functions for keratin network properties. These included not only anchorage of keratin filament bundles but also nucleation of keratin filaments, which was also observed in migrating cells. The findings highlight the fundamental role of hemidesmosomal adhesion for keratin network formation and organization independent of other cytoskeletal filaments pointing to a unique mechanobiological function.
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9
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Niu J, Yuan M, Chen C, Wang L, Tang Z, Fan Y, Liu X, Ma YJ, Gan Y. Berberine-Loaded Thiolated Pluronic F127 Polymeric Micelles for Improving Skin Permeation and Retention. Int J Nanomedicine 2020; 15:9987-10005. [PMID: 33324058 PMCID: PMC7733396 DOI: 10.2147/ijn.s270336] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Accepted: 11/06/2020] [Indexed: 12/26/2022] Open
Abstract
Background Challenges associated with local antibacterial and anti-inflammatory drugs include low penetration and retention of drugs at the expected action site. Additionally, improving these challenges allows for the prevention of side effects that are caused by drug absorption into the systemic circulation and helps to safely treat local skin diseases. Methods In the current study, we successfully prepared a thiolated pluronic F127 polymer micelles (BTFM), which binds to keratin through a disulphide bond, to produce skin retention. In addition, the small particle size of polymer micelles promotes the penetration of carriers into the skin. The current study was divided into two experiments: an in vitro experiment; an in vivo experiment that involved the penetration of the micelle-loaded drugs into the skin of rats, the skin irritation test and the anti-inflammatory activity of the drug-loaded micelles on dimethyl benzene-induced ear edema in mice. Results Results from our in vitro transdermal experiment revealed that the amount of drug absorbed through the skin was decreased after the drug was loaded in the BTFM. Further, results from the vivo study, which used fluorescence microscopy to identify the location of the BTFM after penetration, revealed that there was strong fluorescence in the epidermis layer, but there was no strong fluorescence in the deep skin layer. In addition, the BTFM had a very good safety profile with no potentially hazardous skin irritation and transdermal administration of BTFM could significantly suppress ear edema induced by dimethyl benzene. Therefore, these findings indicated that BTFM reduced the amount of drug that entered the systemic circulation. Our results also demonstrated that the BTFM had a certain affinity for keratin. Conclusion Our experimental results suggest that the BTFM may be an effective drug carrier for local skin therapy with good safety profile.
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Affiliation(s)
- Jiangxiu Niu
- College of Food and Drug, Luoyang Normal University, Luoyang 471934, People's Republic of China
| | - Ming Yuan
- College of Food and Drug, Luoyang Normal University, Luoyang 471934, People's Republic of China
| | - Chenchen Chen
- College of Food and Drug, Luoyang Normal University, Luoyang 471934, People's Republic of China
| | - Liye Wang
- College of Food and Drug, Luoyang Normal University, Luoyang 471934, People's Republic of China
| | - Zigui Tang
- Department of Pharmacy, Henan Medical College, Zhengzhou 451191, People's Republic of China
| | - Yanli Fan
- College of Food and Drug, Luoyang Normal University, Luoyang 471934, People's Republic of China
| | - Xianghui Liu
- College of Food and Drug, Luoyang Normal University, Luoyang 471934, People's Republic of China
| | - Yu Jiao Ma
- College of Food and Drug, Luoyang Normal University, Luoyang 471934, People's Republic of China
| | - Yu Gan
- College of Food and Drug, Luoyang Normal University, Luoyang 471934, People's Republic of China
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10
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Inaba Y, Chauhan V, van Loon AP, Choudhury LS, Sagasti A. Keratins and the plakin family cytolinker proteins control the length of epithelial microridge protrusions. eLife 2020; 9:58149. [PMID: 32894222 PMCID: PMC7535935 DOI: 10.7554/elife.58149] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Accepted: 09/04/2020] [Indexed: 02/06/2023] Open
Abstract
Actin filaments and microtubules create diverse cellular protrusions, but intermediate filaments, the strongest and most stable cytoskeletal elements, are not known to directly participate in the formation of protrusions. Here we show that keratin intermediate filaments directly regulate the morphogenesis of microridges, elongated protrusions arranged in elaborate maze-like patterns on the surface of mucosal epithelial cells. We found that microridges on zebrafish skin cells contained both actin and keratin filaments. Keratin filaments stabilized microridges, and overexpressing keratins lengthened them. Envoplakin and periplakin, plakin family cytolinkers that bind F-actin and keratins, localized to microridges, and were required for their morphogenesis. Strikingly, plakin protein levels directly dictate microridge length. An actin-binding domain of periplakin was required to initiate microridge morphogenesis, whereas periplakin-keratin binding was required to elongate microridges. These findings separate microridge morphogenesis into distinct steps, expand our understanding of intermediate filament functions, and identify microridges as protrusions that integrate actin and intermediate filaments.
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Affiliation(s)
- Yasuko Inaba
- Molecular, Cell and Developmental Biology Department and Molecular Biology Institute, University of California, Los Angeles, Los Angeles, United States
| | - Vasudha Chauhan
- Molecular, Cell and Developmental Biology Department and Molecular Biology Institute, University of California, Los Angeles, Los Angeles, United States
| | - Aaron Paul van Loon
- Molecular, Cell and Developmental Biology Department and Molecular Biology Institute, University of California, Los Angeles, Los Angeles, United States
| | - Lamia Saiyara Choudhury
- Molecular, Cell and Developmental Biology Department and Molecular Biology Institute, University of California, Los Angeles, Los Angeles, United States
| | - Alvaro Sagasti
- Molecular, Cell and Developmental Biology Department and Molecular Biology Institute, University of California, Los Angeles, Los Angeles, United States
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11
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Leng L, Ma J, Sun X, Guo B, Li F, Zhang W, Chang M, Diao J, Wang Y, Wang W, Wang S, Zhu Y, He F, Reid LM, Wang Y. Comprehensive proteomic atlas of skin biomatrix scaffolds reveals a supportive microenvironment for epidermal development. J Tissue Eng 2020; 11:2041731420972310. [PMID: 33224464 PMCID: PMC7658515 DOI: 10.1177/2041731420972310] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2020] [Accepted: 10/20/2020] [Indexed: 12/31/2022] Open
Abstract
Biomaterial scaffolds are increasingly being used to drive tissue regeneration. The limited success so far in human tissues rebuilding and therapy application may be due to inadequacy of the functionality biomaterial scaffold. We developed a new decellularized method to obtain complete anatomical skin biomatrix scaffold in situ with extracellular matrix (ECM) architecture preserved, in this study. We described a skin scaffold map by integrated proteomics and systematically analyzed the interaction between ECM proteins and epidermal cells in skin microenvironment on this basis. They were used to quantify structure and function of the skin's Matrisome, comprised of core ECM components and ECM-associated soluble signals that are key regulators of epidermal development. We especially revealed that ECM played a role in determining the fate of epidermal stem cells through hemidesmosome components. These concepts not only bring us a new understanding of the role of the skin ECM niche, they also provide an attractive combinational strategy based on tissue engineering principles with skin biomatrix scaffold materials for the acceleration and enhancement of tissue regeneration.
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Affiliation(s)
- Ling Leng
- Stem cell and Regenerative Medicine Lab, Department of Medical Science Research Center, Translational Medicine Center, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
- Department of Stem Cell and Regenerative Medicine Laboratory, Institute of Health Service and Transfusion Medicine, Beijing, China
| | - Jie Ma
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences (Beijing), Beijing Institute of Life Omics, Beijing, China
| | - Xuer Sun
- Department of Stem Cell and Regenerative Medicine Laboratory, Institute of Health Service and Transfusion Medicine, Beijing, China
| | - Baolin Guo
- Department of Stem Cell and Regenerative Medicine Laboratory, Institute of Health Service and Transfusion Medicine, Beijing, China
| | - Fanlu Li
- Department of Stem Cell and Regenerative Medicine Laboratory, Institute of Health Service and Transfusion Medicine, Beijing, China
| | - Wei Zhang
- Department of Stem Cell and Regenerative Medicine Laboratory, Institute of Health Service and Transfusion Medicine, Beijing, China
| | - Mingyang Chang
- Department of Stem Cell and Regenerative Medicine Laboratory, Institute of Health Service and Transfusion Medicine, Beijing, China
| | - Jinmei Diao
- Department of Stem Cell and Regenerative Medicine Laboratory, Institute of Health Service and Transfusion Medicine, Beijing, China
| | - Yi Wang
- Department of Stem Cell and Regenerative Medicine Laboratory, Institute of Health Service and Transfusion Medicine, Beijing, China
| | - Wenjuan Wang
- Department of Dermatology, Chinese PLA General Hospital, Beijing, China
| | - Shuyong Wang
- Department of Stem Cell and Regenerative Medicine Laboratory, Institute of Health Service and Transfusion Medicine, Beijing, China
| | - Yunping Zhu
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences (Beijing), Beijing Institute of Life Omics, Beijing, China
- Basic Medical School, Anhui Medical University, Anhui, China
| | - Fuchu He
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences (Beijing), Beijing Institute of Life Omics, Beijing, China
| | - Lola M Reid
- Department of Cell Biology and Physiology Program in Molecular Biology and Biotechnology, Lineberger Cancer Center, University of North Carolina School of Medicine, Chapel Hill, USA
| | - Yunfang Wang
- Department of Stem Cell and Regenerative Medicine Laboratory, Institute of Health Service and Transfusion Medicine, Beijing, China
- Translational Research Center, Beijing Tsinghua Chang Gung Hospital, Beijing, China
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12
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Resnik N, de Luca GMR, Sepčić K, Romih R, Manders E, Veranič P. Depletion of the cellular cholesterol content reduces the dynamics of desmosomal cadherins and interferes with desmosomal strength. Histochem Cell Biol 2019; 152:195-206. [DOI: 10.1007/s00418-019-01797-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/31/2019] [Indexed: 12/20/2022]
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13
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Fujiwara S, Matsui TS, Ohashi K, Mizuno K, Deguchi S. Keratin‐binding ability of the N‐terminal Solo domain of Solo is critical for its function in cellular mechanotransduction. Genes Cells 2019; 24:390-402. [DOI: 10.1111/gtc.12682] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Revised: 03/11/2019] [Accepted: 03/26/2019] [Indexed: 12/18/2022]
Affiliation(s)
- Sachiko Fujiwara
- Division of Bioengineering, Graduate School of Engineering Science Osaka University Toyonaka Japan
- Japanese Society for the Promotion of Science Tokyo Japan
| | - Tsubasa S. Matsui
- Division of Bioengineering, Graduate School of Engineering Science Osaka University Toyonaka Japan
| | - Kazumasa Ohashi
- Laboratory of Molecular and Cellular Biology, Graduate School of Life Sciences Tohoku University Sendai Japan
| | - Kensaku Mizuno
- Laboratory of Molecular and Cellular Biology, Graduate School of Life Sciences Tohoku University Sendai Japan
- Institute of Liberal Arts and Sciences Tohoku University Sendai Japan
| | - Shinji Deguchi
- Division of Bioengineering, Graduate School of Engineering Science Osaka University Toyonaka Japan
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14
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Gross A, Pack LAP, Schacht GM, Kant S, Ungewiss H, Meir M, Schlegel N, Preisinger C, Boor P, Guldiken N, Krusche CA, Sellge G, Trautwein C, Waschke J, Heuser A, Leube RE, Strnad P. Desmoglein 2, but not desmocollin 2, protects intestinal epithelia from injury. Mucosal Immunol 2018; 11:1630-1639. [PMID: 30115995 DOI: 10.1038/s41385-018-0062-z] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2018] [Revised: 06/14/2018] [Accepted: 06/26/2018] [Indexed: 02/04/2023]
Abstract
Desmosomes are the least understood intercellular junctions in the intestinal epithelia and provide cell-cell adhesion via the cadherins desmoglein (Dsg)2 and desmocollin (Dsc)2. We studied these cadherins in Crohn's disease (CD) patients and in newly generated conditional villin-Cre DSG2 and DSC2 knockout mice (DSG2ΔIEC; DSC2ΔIEC). CD patients exhibited altered desmosomes and reduced Dsg2/Dsc2 levels. The intestines of both transgenic animal lines were histopathologically inconspicuous. However, DSG2ΔIEC, but not DSC2ΔIEC mice displayed an increased intestinal permeability, a wider desmosomal space as well as alterations in desmosomal and tight junction components. After dextran sodium sulfate (DSS) treatment and Citrobacter rodentium exposure, DSG2ΔIEC mice developed a more-pronounced colitis, an enhanced intestinal epithelial barrier disruption, leading to a stronger inflammation and activation of epithelial pSTAT3 signaling. No susceptibility to DSS-induced intestinal injury was noted in DSC2ΔIEC animals. Dsg2 interacted with the cytoprotective chaperone Hsp70. Accordingly, DSG2ΔIEC mice had lower Hsp70 levels in the plasma membrane compartment, whereas DSC2ΔIEC mice displayed a compensatory recruitment of galectin 3, a junction-tightening protein. Our results demonstrate that Dsg2, but not Dsc2 is required for the integrity of the intestinal epithelial barrier in vivo.
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Affiliation(s)
- Annika Gross
- Department of Medicine III and IZKF, University Hospital Aachen, Aachen, Germany
| | - Lotta A P Pack
- Department of Medicine III and IZKF, University Hospital Aachen, Aachen, Germany
| | - Gabriel M Schacht
- Department of Medicine III and IZKF, University Hospital Aachen, Aachen, Germany
| | - Sebastian Kant
- Institute of Molecular and Cellular Anatomy, RWTH Aachen University, Aachen, Germany
| | - Hanna Ungewiss
- Institute of Anatomy, Faculty of Medicine, LMU Munich, Munich, Germany
| | - Michael Meir
- Department of Surgery I, University of Würzburg, Würzburg, Germany
| | - Nicolas Schlegel
- Department of Surgery I, University of Würzburg, Würzburg, Germany
| | | | - Peter Boor
- Institute of Pathology and Department of Nephrology, University Hospital Aachen, Aachen, Germany
| | - Nurdan Guldiken
- Department of Medicine III and IZKF, University Hospital Aachen, Aachen, Germany
| | - Claudia A Krusche
- Institute of Molecular and Cellular Anatomy, RWTH Aachen University, Aachen, Germany
| | - Gernot Sellge
- Department of Medicine III and IZKF, University Hospital Aachen, Aachen, Germany
| | - Christian Trautwein
- Department of Medicine III and IZKF, University Hospital Aachen, Aachen, Germany
| | - Jens Waschke
- Department of Surgery I, University of Würzburg, Würzburg, Germany
| | - Arnd Heuser
- Max-Delbrück-Center of Molecular Medicine, Berlin, Germany
| | - Rudolf E Leube
- Institute of Molecular and Cellular Anatomy, RWTH Aachen University, Aachen, Germany
| | - Pavel Strnad
- Department of Medicine III and IZKF, University Hospital Aachen, Aachen, Germany.
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15
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Fujiwara S, Matsui TS, Ohashi K, Deguchi S, Mizuno K. Solo, a RhoA-targeting guanine nucleotide exchange factor, is critical for hemidesmosome formation and acinar development in epithelial cells. PLoS One 2018; 13:e0195124. [PMID: 29672603 PMCID: PMC5909619 DOI: 10.1371/journal.pone.0195124] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Accepted: 03/17/2018] [Indexed: 11/18/2022] Open
Abstract
Cell-substrate adhesions are essential for various physiological processes, including embryonic development and maintenance of organ functions. Hemidesmosomes (HDs) are multiprotein complexes that attach epithelial cells to the basement membrane. Formation and remodeling of HDs are dependent on the surrounding mechanical environment; however, the upstream signaling mechanisms are not well understood. We recently reported that Solo (also known as ARHGEF40), a guanine nucleotide exchange factor targeting RhoA, binds to keratin8/18 (K8/K18) intermediate filaments, and that their interaction is important for force-induced actin and keratin cytoskeletal reorganization. In this study, we show that Solo co-precipitates with an HD protein, β4-integrin. Co-precipitation assays revealed that the central region (amino acids 330–1057) of Solo binds to the C-terminal region (1451–1752) of β4-integrin. Knockdown of Solo significantly suppressed HD formation in MCF10A mammary epithelial cells. Similarly, knockdown of K18 or treatment with Y-27632, a specific inhibitor of Rho-associated kinase (ROCK), suppressed HD formation. As Solo knockdown or Y-27632 treatment is known to disorganize K8/K18 filaments, these results suggest that Solo is involved in HD formation by regulating K8/K18 filament organization via the RhoA-ROCK signaling pathway. We also showed that knockdown of Solo impairs acinar formation in MCF10A cells cultured in 3D Matrigel. In addition, Solo accumulated at the site of traction force generation in 2D-cultured MCF10A cells. Taken together, these results suggest that Solo plays a crucial role in HD formation and acinar development in epithelial cells by regulating mechanical force-induced RhoA activation and keratin filament organization.
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Affiliation(s)
- Sachiko Fujiwara
- Division of Bioengineering, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka, Japan
- Research Fellow of the Japanese Society for the Promotion of Science, Kojimachi, Chiyoda-ku, Tokyo, Japan
- * E-mail: (SF); (SD); (KM)
| | - Tsubasa S. Matsui
- Division of Bioengineering, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka, Japan
| | - Kazumasa Ohashi
- Department of Biomolecular Sciences, Graduate School of Life Sciences, Tohoku University, Sendai, Miyagi, Japan
| | - Shinji Deguchi
- Division of Bioengineering, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka, Japan
- * E-mail: (SF); (SD); (KM)
| | - Kensaku Mizuno
- Department of Biomolecular Sciences, Graduate School of Life Sciences, Tohoku University, Sendai, Miyagi, Japan
- * E-mail: (SF); (SD); (KM)
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16
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Vielmuth F, Walter E, Fuchs M, Radeva MY, Buechau F, Magin TM, Spindler V, Waschke J. Keratins Regulate p38MAPK-Dependent Desmoglein Binding Properties in Pemphigus. Front Immunol 2018; 9:528. [PMID: 29616033 PMCID: PMC5868517 DOI: 10.3389/fimmu.2018.00528] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Accepted: 02/28/2018] [Indexed: 12/20/2022] Open
Abstract
Keratins are crucial for the anchorage of desmosomes. Severe alterations of keratin organization and detachment of filaments from the desmosomal plaque occur in the autoimmune dermatoses pemphigus vulgaris and pemphigus foliaceus (PF), which are mainly caused by autoantibodies against desmoglein (Dsg) 1 and 3. Keratin alterations are a structural hallmark in pemphigus pathogenesis and correlate with loss of intercellular adhesion. However, the significance for autoantibody-induced loss of intercellular adhesion is largely unknown. In wild-type (wt) murine keratinocytes, pemphigus autoantibodies induced keratin filament retraction. Under the same conditions, we used murine keratinocytes lacking all keratin filaments (KtyII k.o.) as a model system to dissect the role of keratins in pemphigus. KtyII k.o. cells show compromised intercellular adhesion without antibody (Ab) treatment, which was not impaired further by pathogenic pemphigus autoantibodies. Nevertheless, direct activation of p38MAPK via anisomycin further decreased intercellular adhesion indicating that cell cohesion was not completely abrogated in the absence of keratins. Direct inhibition of Dsg3, but not of Dsg1, interaction via pathogenic autoantibodies as revealed by atomic force microscopy was detectable in both cell lines demonstrating that keratins are not required for this phenomenon. However, PF-IgG shifted Dsg1-binding events from cell borders toward the free cell surface in wt cells. This led to a distribution pattern of Dsg1-binding events similar to KtyII k.o. cells under resting conditions. In keratin-deficient keratinocytes, PF-IgG impaired Dsg1-binding strength, which was not different from wt cells under resting conditions. In addition, pathogenic autoantibodies were capable of activating p38MAPK in both KtyII wt and k.o. cells, the latter of which already displayed robust p38MAPK activation under resting conditions. Since inhibition of p38MAPK blocked autoantibody-induced loss of intercellular adhesion in wt cells and restored baseline cell cohesion in keratin-deficient cells, we conclude that p38MAPK signaling is (i) critical for regulation of cell adhesion, (ii) regulated by keratins, and (iii) targets both keratin-dependent and -independent mechanisms.
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Affiliation(s)
- Franziska Vielmuth
- Faculty of Medicine, Institute of Anatomy, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Elias Walter
- Faculty of Medicine, Institute of Anatomy, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Michael Fuchs
- Faculty of Medicine, Institute of Anatomy, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Mariya Y Radeva
- Faculty of Medicine, Institute of Anatomy, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Fanny Buechau
- Division of Cell and Developmental Biology, Institute of Biology, Sächsische Inkubator für Klinische Translation (SIKT), University of Leipzig, Leipzig, Germany
| | - Thomas M Magin
- Division of Cell and Developmental Biology, Institute of Biology, Sächsische Inkubator für Klinische Translation (SIKT), University of Leipzig, Leipzig, Germany
| | - Volker Spindler
- Faculty of Medicine, Institute of Anatomy, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Jens Waschke
- Faculty of Medicine, Institute of Anatomy, Ludwig-Maximilians-Universität München, Munich, Germany
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17
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Osmani N, Pontabry J, Comelles J, Fekonja N, Goetz JG, Riveline D, Georges-Labouesse E, Labouesse M. An Arf6- and caveolae-dependent pathway links hemidesmosome remodeling and mechanoresponse. Mol Biol Cell 2017; 29:435-451. [PMID: 29237817 PMCID: PMC6014169 DOI: 10.1091/mbc.e17-06-0356] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Revised: 12/06/2017] [Accepted: 12/08/2017] [Indexed: 01/08/2023] Open
Abstract
Hemidesmosomes are epithelial-specific cell-matrix adhesions stably anchoring the intracellular keratin network to the extracellular matrix and providing mechanical resilience to epithelia. The small GTPase Arf6 and caveolae are essential for their remodeling, notably in response to external mechanical cues. Hemidesmosomes (HDs) are epithelial-specific cell–matrix adhesions that stably anchor the intracellular keratin network to the extracellular matrix. Although their main role is to protect the epithelial sheet from external mechanical strain, how HDs respond to mechanical stress remains poorly understood. Here we identify a pathway essential for HD remodeling and outline its role with respect to α6β4 integrin recycling. We find that α6β4 integrin chains localize to the plasma membrane, caveolae, and ADP-ribosylation factor-6+ (Arf6+) endocytic compartments. Based on fluorescence recovery after photobleaching and endocytosis assays, integrin recycling between both sites requires the small GTPase Arf6 but neither caveolin1 (Cav1) nor Cavin1. Strikingly, when keratinocytes are stretched or hypo-osmotically shocked, α6β4 integrin accumulates at cell edges, whereas Cav1 disappears from it. This process, which is isotropic relative to the orientation of stretch, depends on Arf6, Cav1, and Cavin1. We propose that mechanically induced HD growth involves the isotropic flattening of caveolae (known for their mechanical buffering role) associated with integrin diffusion and turnover.
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Affiliation(s)
- Naël Osmani
- IGBMC, Development and Stem Cells Program, CNRS (UMR 7104)/INSERM (U964), 67400 Illkirch, France.,Inserm U1109, MN3T, 67200 Strasbourg, France.,Université de Strasbourg, 67000 Strasbourg, France.,LabEx Medalis, Université de Strasbourg, Strasbourg 67000, France.,Fédération de Médecine Translationnelle de Strasbourg (FMTS), 67000 Strasbourg, France
| | - Julien Pontabry
- IGBMC, Development and Stem Cells Program, CNRS (UMR 7104)/INSERM (U964), 67400 Illkirch, France.,Université de Strasbourg, 67000 Strasbourg, France
| | - Jordi Comelles
- IGBMC, Development and Stem Cells Program, CNRS (UMR 7104)/INSERM (U964), 67400 Illkirch, France.,Université de Strasbourg, 67000 Strasbourg, France.,Laboratory of Cell Physics, ISIS/IGBMC, CNRS UMR 7006, 67000 Strasbourg, France
| | - Nina Fekonja
- Inserm U1109, MN3T, 67200 Strasbourg, France.,Université de Strasbourg, 67000 Strasbourg, France.,LabEx Medalis, Université de Strasbourg, Strasbourg 67000, France.,Fédération de Médecine Translationnelle de Strasbourg (FMTS), 67000 Strasbourg, France
| | - Jacky G Goetz
- Inserm U1109, MN3T, 67200 Strasbourg, France.,Université de Strasbourg, 67000 Strasbourg, France.,LabEx Medalis, Université de Strasbourg, Strasbourg 67000, France.,Fédération de Médecine Translationnelle de Strasbourg (FMTS), 67000 Strasbourg, France
| | - Daniel Riveline
- IGBMC, Development and Stem Cells Program, CNRS (UMR 7104)/INSERM (U964), 67400 Illkirch, France .,Université de Strasbourg, 67000 Strasbourg, France.,Laboratory of Cell Physics, ISIS/IGBMC, CNRS UMR 7006, 67000 Strasbourg, France
| | - Elisabeth Georges-Labouesse
- IGBMC, Development and Stem Cells Program, CNRS (UMR 7104)/INSERM (U964), 67400 Illkirch, France.,Université de Strasbourg, 67000 Strasbourg, France
| | - Michel Labouesse
- IGBMC, Development and Stem Cells Program, CNRS (UMR 7104)/INSERM (U964), 67400 Illkirch, France .,Université de Strasbourg, 67000 Strasbourg, France.,UMR7622-CNRS, IBPS, Sorbonne Université, 75005 Paris, France
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18
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Hatzfeld M, Keil R, Magin TM. Desmosomes and Intermediate Filaments: Their Consequences for Tissue Mechanics. Cold Spring Harb Perspect Biol 2017; 9:a029157. [PMID: 28096266 PMCID: PMC5453391 DOI: 10.1101/cshperspect.a029157] [Citation(s) in RCA: 86] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Adherens junctions (AJs) and desmosomes connect the actin and keratin filament networks of adjacent cells into a mechanical unit. Whereas AJs function in mechanosensing and in transducing mechanical forces between the plasma membrane and the actomyosin cytoskeleton, desmosomes and intermediate filaments (IFs) provide mechanical stability required to maintain tissue architecture and integrity when the tissues are exposed to mechanical stress. Desmosomes are essential for stable intercellular cohesion, whereas keratins determine cell mechanics but are not involved in generating tension. Here, we summarize the current knowledge of the role of IFs and desmosomes in tissue mechanics and discuss whether the desmosome-keratin scaffold might be actively involved in mechanosensing and in the conversion of chemical signals into mechanical strength.
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Affiliation(s)
- Mechthild Hatzfeld
- Institute of Molecular Medicine, Division of Pathobiochemistry, Martin-Luther-University Halle-Wittenberg, 06114 Halle, Germany
| | - René Keil
- Institute of Molecular Medicine, Division of Pathobiochemistry, Martin-Luther-University Halle-Wittenberg, 06114 Halle, Germany
| | - Thomas M Magin
- Institute of Biology, Division of Cell and Developmental Biology and Saxonian Incubator for Clinical Translation (SIKT), University of Leipzig, 04103 Leipzig, Germany
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19
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Fabrication of human hair keratin/jellyfish collagen/eggshell-derived hydroxyapatite osteoinductive biocomposite scaffolds for bone tissue engineering: From waste to regenerative medicine products. Colloids Surf B Biointerfaces 2017; 154:160-170. [DOI: 10.1016/j.colsurfb.2017.03.034] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2016] [Revised: 01/30/2017] [Accepted: 03/15/2017] [Indexed: 11/18/2022]
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20
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Ohashi K, Fujiwara S, Mizuno K. Roles of the cytoskeleton, cell adhesion and rho signalling in mechanosensing and mechanotransduction. J Biochem 2017; 161:245-254. [PMID: 28082721 DOI: 10.1093/jb/mvw082] [Citation(s) in RCA: 75] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Accepted: 09/13/2016] [Indexed: 11/13/2022] Open
Abstract
All cells sense and respond to various mechanical forces in and mechanical properties of their environment. To respond appropriately, cells must be able to sense the location, direction, strength and duration of these forces. Recent progress in mechanobiology has provided a better understanding of the mechanisms of mechanoresponses underlying many cellular and developmental processes. Various roles of mechanoresponses in development and tissue homeostasis have been elucidated, and many molecules involved in mechanotransduction have been identified. However, the whole picture of the functions and molecular mechanisms of mechanotransduction remains to be understood. Recently, novel mechanisms for sensing and transducing mechanical stresses via the cytoskeleton, cell-substrate and cell-cell adhesions and related proteins have been identified. In this review, we outline the roles of the cytoskeleton, cell-substrate and cell-cell adhesions, and related proteins in mechanosensing and mechanotransduction. We also describe the roles and regulation of Rho-family GTPases in mechanoresponses.
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Affiliation(s)
- Kazumasa Ohashi
- Department of Biomolecular Sciences, Graduate School of Life Sciences, Tohoku University, Sendai, Miyagi 980-8578, Japan
| | - Sachiko Fujiwara
- Department of Biomolecular Sciences, Graduate School of Life Sciences, Tohoku University, Sendai, Miyagi 980-8578, Japan.,Department of Mechanical Science and Bioengineering, Graduate School of Engineering Science, Osaka University, Toyonaka 560-8531, Japan Osaka
| | - Kensaku Mizuno
- Department of Biomolecular Sciences, Graduate School of Life Sciences, Tohoku University, Sendai, Miyagi 980-8578, Japan
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21
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Li Y, Xiao Y, Liu C. The Horizon of Materiobiology: A Perspective on Material-Guided Cell Behaviors and Tissue Engineering. Chem Rev 2017; 117:4376-4421. [PMID: 28221776 DOI: 10.1021/acs.chemrev.6b00654] [Citation(s) in RCA: 342] [Impact Index Per Article: 48.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Although the biological functions of cell and tissue can be regulated by biochemical factors (e.g., growth factors, hormones), the biophysical effects of materials on the regulation of biological activity are receiving more attention. In this Review, we systematically summarize the recent progress on how biomaterials with controllable properties (e.g., compositional/degradable dynamics, mechanical properties, 2D topography, and 3D geometry) can regulate cell behaviors (e.g., cell adhesion, spreading, proliferation, cell alignment, and the differentiation or self-maintenance of stem cells) and tissue/organ functions. How the biophysical features of materials influence tissue/organ regeneration have been elucidated. Current challenges and a perspective on the development of novel materials that can modulate specific biological functions are discussed. The interdependent relationship between biomaterials and biology leads us to propose the concept of "materiobiology", which is a scientific discipline that studies the biological effects of the properties of biomaterials on biological functions at cell, tissue, organ, and the whole organism levels. This Review highlights that it is more important to develop ECM-mimicking biomaterials having a self-regenerative capacity to stimulate tissue regeneration, instead of attempting to recreate the complexity of living tissues or tissue constructs ex vivo. The principles of materiobiology may benefit the development of novel biomaterials providing combinative bioactive cues to activate the migration of stem cells from endogenous reservoirs (i.e., cell niches), stimulate robust and scalable self-healing mechanisms, and unlock the body's innate powers of regeneration.
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Affiliation(s)
- Yulin Li
- Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology , Meilong Road 130, Shanghai 200237, People's Republic of China
| | - Yin Xiao
- Institute of Health and Biomedical Innovation, Queensland University of Technology , Kelvin Grove, Brisbane, Queensland 4059, Australia
| | - Changsheng Liu
- Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology , Meilong Road 130, Shanghai 200237, People's Republic of China
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22
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Furue M, Kadono T. Pemphigus, a pathomechanism of acantholysis. Australas J Dermatol 2017; 58:171-173. [PMID: 28211055 DOI: 10.1111/ajd.12562] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2016] [Accepted: 08/13/2016] [Indexed: 12/16/2022]
Abstract
Autoantibodies to the desmosomal proteins desmoglein 1 and 3 cause pemphigus foliaceus and pemphigus vulgaris, which are characterised by keratinocyte dissociation (acantholysis) and intraepidermal blister formation. The passive transfer of pathogenic anti-desmoglein antibodies induces blisters in mice in vivo and the loss of keratinocyte adhesion in vitro. The pathogenetic mechanisms of acantholysis due to anti-desmoglein autoantibodies are not fully understood. However, recent studies have revealed that signalling-dependent and signalling-independent pathways are operative in the loss of cell adhesion. In this review, we focus on the pathomechanism of acantholysis due to autoantibodies to desmogleins and recent therapeutic approaches.
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Affiliation(s)
- Masutaka Furue
- Department of Dermatology, Kyushu University, Fukuoka, Japan
| | - Takafumi Kadono
- Department of Dermatology, St Marianna University School of Medicine, Kawasaki, Japan
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23
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Effects of Female Sex Hormones on Susceptibility to HSV-2 in Vaginal Cells Grown in Air-Liquid Interface. Viruses 2016; 8:v8090241. [PMID: 27589787 PMCID: PMC5035955 DOI: 10.3390/v8090241] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2016] [Revised: 08/19/2016] [Accepted: 08/22/2016] [Indexed: 01/05/2023] Open
Abstract
The lower female reproductive tract (FRT) is comprised of the cervix and vagina, surfaces that are continuously exposed to a variety of commensal and pathogenic organisms. Sexually transmitted viruses, such as herpes simplex virus type 2 (HSV-2), have to traverse the mucosal epithelial lining of the FRT to establish infection. The majority of current culture systems that model the host-pathogen interactions in the mucosal epithelium have limitations in simulating physiological conditions as they employ a liquid-liquid interface (LLI), in which both apical and basolateral surfaces are submerged in growth medium. We designed the current study to simulate in vivo conditions by growing an immortalized vaginal epithelial cell line (Vk2/E6E7) in culture with an air-liquid interface (ALI) and examined the effects of female sex hormones on their growth, differentiation, and susceptibility to HSV-2 under these conditions, in comparison to LLI cultures. ALI conditions induced Vk2/E6E7 cells to grow into multi-layered cultures compared to the monolayers present in LLI conditions. Vk2 cells in ALI showed higher production of cytokeratin in the presence of estradiol (E2), compared to cells grown in progesterone (P4). Cells grown under ALI conditions were exposed to HSV-2-green fluorescent protein (GFP) and the highest infection and replication was observed in the presence of P4. Altogether, this study suggests that ALI cultures more closely simulate the in vivo conditions of the FRT compared to the conventional LLI cultures. Furthermore, under these conditions P4 was found to confer higher susceptibility to HSV-2 infection in vaginal cells. The vaginal ALI culture system offers a better alternative to study host-pathogen interactions.
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24
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Ortega E, Manso JA, Buey RM, Carballido AM, Carabias A, Sonnenberg A, de Pereda JM. The Structure of the Plakin Domain of Plectin Reveals an Extended Rod-like Shape. J Biol Chem 2016; 291:18643-62. [PMID: 27413182 DOI: 10.1074/jbc.m116.732909] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2016] [Indexed: 11/06/2022] Open
Abstract
Plakins are large multi-domain proteins that interconnect cytoskeletal structures. Plectin is a prototypical plakin that tethers intermediate filaments to membrane-associated complexes. Most plakins contain a plakin domain formed by up to nine spectrin repeats (SR1-SR9) and an SH3 domain. The plakin domains of plectin and other plakins harbor binding sites for junctional proteins. We have combined x-ray crystallography with small angle x-ray scattering (SAXS) to elucidate the structure of the plakin domain of plectin, extending our previous analysis of the SR1 to SR5 region. Two crystal structures of the SR5-SR6 region allowed us to characterize its uniquely wide inter-repeat conformational variability. We also report the crystal structures of the SR7-SR8 region, refined to 1.8 Å, and the SR7-SR9 at lower resolution. The SR7-SR9 region, which is conserved in all other plakin domains, forms a rigid segment stabilized by uniquely extensive inter-repeat contacts mediated by unusually long helices in SR8 and SR9. Using SAXS we show that in solution the SR3-SR6 and SR7-SR9 regions are rod-like segments and that SR3-SR9 of plectin has an extended shape with a small central kink. Other plakins, such as bullous pemphigoid antigen 1 and microtubule and actin cross-linking factor 1, are likely to have similar extended plakin domains. In contrast, desmoplakin has a two-segment structure with a central flexible hinge. The continuous versus segmented structures of the plakin domains of plectin and desmoplakin give insight into how different plakins might respond to tension and transmit mechanical signals.
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Affiliation(s)
- Esther Ortega
- From the Instituto de Biología Molecular y Celular del Cancer, Consejo Superior de Investigaciones Científicas, University of Salamanca, 37007 Salamanca, Spain
| | - José A Manso
- From the Instituto de Biología Molecular y Celular del Cancer, Consejo Superior de Investigaciones Científicas, University of Salamanca, 37007 Salamanca, Spain
| | - Rubén M Buey
- From the Instituto de Biología Molecular y Celular del Cancer, Consejo Superior de Investigaciones Científicas, University of Salamanca, 37007 Salamanca, Spain, the Metabolic Engineering Group, Department of Microbiology and Genetics, University of Salamanca, Salamanca, 37007, Spain, and
| | - Ana M Carballido
- From the Instituto de Biología Molecular y Celular del Cancer, Consejo Superior de Investigaciones Científicas, University of Salamanca, 37007 Salamanca, Spain
| | - Arturo Carabias
- From the Instituto de Biología Molecular y Celular del Cancer, Consejo Superior de Investigaciones Científicas, University of Salamanca, 37007 Salamanca, Spain
| | - Arnoud Sonnenberg
- the Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX Amsterdam, The Netherlands
| | - José M de Pereda
- From the Instituto de Biología Molecular y Celular del Cancer, Consejo Superior de Investigaciones Científicas, University of Salamanca, 37007 Salamanca, Spain,
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25
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FAM83H and casein kinase I regulate the organization of the keratin cytoskeleton and formation of desmosomes. Sci Rep 2016; 6:26557. [PMID: 27222304 PMCID: PMC4879633 DOI: 10.1038/srep26557] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2015] [Accepted: 05/05/2016] [Indexed: 12/23/2022] Open
Abstract
FAM83H is essential for the formation of dental enamel because a mutation in the FAM83H gene causes amelogenesis imperfecta (AI). We previously reported that the overexpression of FAM83H often occurs and disorganizes the keratin cytoskeleton in colorectal cancer cells. We herein show that FAM83H regulates the organization of the keratin cytoskeleton and maintains the formation of desmosomes in ameloblastoma cells. FAM83H is expressed and localized on keratin filaments in human ameloblastoma cell lines and in mouse ameloblasts and epidermal germinative cells in vivo. FAM83H shows preferential localization to keratin filaments around the nucleus that often extend to cell-cell junctions. Alterations in the function of FAM83H by its overexpression, knockdown, or an AI-causing truncated mutant prevent the proper organization of the keratin cytoskeleton in ameloblastoma cells. Furthermore, the AI-causing mutant prevents desmosomal proteins from being localized to cell-cell junctions. The effects of the AI-causing mutant depend on its binding to and possible inhibition of casein kinase I (CK-1). The suppression of CK-1 by its inhibitor, D4476, disorganizes the keratin cytoskeleton. Our results suggest that AI caused by the FAM83H mutation is mediated by the disorganization of the keratin cytoskeleton and subsequent disruption of desmosomes in ameloblasts.
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De Grandis M, Lhoumeau AC, Mancini SJC, Aurrand-Lions M. Adhesion receptors involved in HSC and early-B cell interactions with bone marrow microenvironment. Cell Mol Life Sci 2016; 73:687-703. [PMID: 26495446 PMCID: PMC11108274 DOI: 10.1007/s00018-015-2064-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2015] [Revised: 09/16/2015] [Accepted: 10/08/2015] [Indexed: 02/06/2023]
Abstract
Hematopoiesis takes place in the bone marrow of adult mammals and is the process by which blood cells are replenished every day throughout life. Differentiation of hematopoietic cells occurs in a stepwise manner through intermediates of differentiation that could be phenotypically identified. This has allowed establishing hematopoietic cell classification with hematopoietic stem cells (HSCs) at the top of the hierarchy. HSCs are mostly quiescent and serve as a reservoir for maintenance of lifelong hematopoiesis. Over recent years, it has become increasingly clear that HSC quiescence is not only due to intrinsic properties, but is also mediated by cognate interactions between HSCs and surrounding cells within micro-anatomical sites called “niches”. This hematopoietic/stromal crosstalk model also applies to more mature progenitors such as B cell progenitors, which are thought to reside in distinct “niches”. This prompted many research teams to search for specific molecular mechanisms supporting leuko-stromal crosstalk in the bone marrow and acting at specific stage of differentiation to regulate hematopoietic homeostasis. Here, we review recent data on adhesion mechanisms involved in HSCs and B cell progenitors interactions with surrounding bone marrow stromal cells.
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Affiliation(s)
- Maria De Grandis
- Centre de Recherche en Cancérologie de Marseille, Institut Paoli-Calmettes, Inserm U1068, CNRS UMR7258, Aix-Marseille Université UM105, Marseille, France
| | - Anne-Catherine Lhoumeau
- Centre de Recherche en Cancérologie de Marseille, Institut Paoli-Calmettes, Inserm U1068, CNRS UMR7258, Aix-Marseille Université UM105, Marseille, France
| | - Stéphane J. C. Mancini
- Centre de Recherche en Cancérologie de Marseille, Institut Paoli-Calmettes, Inserm U1068, CNRS UMR7258, Aix-Marseille Université UM105, Marseille, France
| | - Michel Aurrand-Lions
- Centre de Recherche en Cancérologie de Marseille, Institut Paoli-Calmettes, Inserm U1068, CNRS UMR7258, Aix-Marseille Université UM105, Marseille, France
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Fujiwara S, Ohashi K, Mashiko T, Kondo H, Mizuno K. Interplay between Solo and keratin filaments is crucial for mechanical force-induced stress fiber reinforcement. Mol Biol Cell 2016; 27:954-66. [PMID: 26823019 PMCID: PMC4791139 DOI: 10.1091/mbc.e15-06-0417] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2015] [Accepted: 01/15/2016] [Indexed: 11/11/2022] Open
Abstract
Mechanical force-induced cytoskeletal reorganization is essential for cell and tissue remodeling and homeostasis; however, the underlying cellular mechanisms remain elusive. Solo (ARHGEF40) is a RhoA-targeting guanine nucleotide exchange factor (GEF) involved in cyclical stretch-induced human endothelial cell reorientation and convergent extension cell movement in zebrafish gastrula. In this study, we show that Solo binds to keratin-8/keratin-18 (K8/K18) intermediate filaments through multiple sites. Solo overexpression promotes the formation of thick actin stress fibers and keratin bundles, whereas knockdown of Solo, expression of a GEF-inactive mutant of Solo, or inhibition of ROCK suppresses stress fiber formation and leads to disorganized keratin networks, indicating that the Solo-RhoA-ROCK pathway serves to precisely organize keratin networks, as well as to promote stress fibers. Of importance, knockdown of Solo or K18 or overexpression of GEF-inactive or deletion mutants of Solo suppresses tensile force-induced stress fiber reinforcement. Furthermore, knockdown of Solo or K18 suppresses tensile force-induced RhoA activation. These results strongly suggest that the interplay between Solo and K8/K18 filaments plays a crucial role in tensile force-induced RhoA activation and consequent actin cytoskeletal reinforcement.
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Affiliation(s)
- Sachiko Fujiwara
- Department of Biomolecular Sciences, Graduate School of Life Sciences, Tohoku University, Sendai, Miyagi 980-8578, Japan
| | - Kazumasa Ohashi
- Department of Biomolecular Sciences, Graduate School of Life Sciences, Tohoku University, Sendai, Miyagi 980-8578, Japan
| | - Toshiya Mashiko
- Department of Biomolecular Sciences, Graduate School of Life Sciences, Tohoku University, Sendai, Miyagi 980-8578, Japan
| | - Hiroshi Kondo
- Department of Biomolecular Sciences, Graduate School of Life Sciences, Tohoku University, Sendai, Miyagi 980-8578, Japan
| | - Kensaku Mizuno
- Department of Biomolecular Sciences, Graduate School of Life Sciences, Tohoku University, Sendai, Miyagi 980-8578, Japan
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Functional and Genetic Analysis of VAB-10 Spectraplakin in Caenorhabditis elegans. Methods Enzymol 2016; 569:407-30. [DOI: 10.1016/bs.mie.2015.05.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Quintin S, Wang S, Pontabry J, Bender A, Robin F, Hyenne V, Landmann F, Gally C, Oegema K, Labouesse M. Non-centrosomal epidermal microtubules act in parallel to LET-502/ROCK to promote C. elegans elongation. Development 2015; 143:160-73. [PMID: 26586219 PMCID: PMC6514414 DOI: 10.1242/dev.126615] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2015] [Accepted: 11/10/2015] [Indexed: 12/11/2022]
Abstract
C. elegans embryonic elongation is a morphogenetic event driven by actomyosin contractility and muscle-induced tension transmitted through hemidesmosomes. A role for the microtubule cytoskeleton has also been proposed, but its contribution remains poorly characterized. Here, we investigate the organization of the non-centrosomal microtubule arrays present in the epidermis and assess their function in elongation. We show that the microtubule regulators γ-tubulin and NOCA-1 are recruited to hemidesmosomes and adherens junctions early in elongation. Several parallel approaches suggest that microtubule nucleation occurs from these sites. Disrupting the epidermal microtubule array by overexpressing the microtubule-severing protein Spastin or by inhibiting the C. elegans ninein homolog NOCA-1 in the epidermis mildly affected elongation. However, microtubules were essential for elongation when hemidesmosomes or the activity of the Rho kinase LET-502/ROCK were partially compromised. Imaging of junctional components and genetic analyses suggest that epidermal microtubules function together with Rho kinase to promote the transport of E-cadherin to adherens junctions and myotactin to hemidesmosomes. Our results indicate that the role of LET-502 in junctional remodeling is likely to be independent of its established function as a myosin II activator, but requires a microtubule-dependent pathway involving the syntaxin SYX-5. Hence, we propose that non-centrosomal microtubules organized by epidermal junctions contribute to elongation by transporting junction remodeling factors, rather than having a mechanical role. Summary: During C. elegans embryonic elongation, microtubules nucleate at adjerens junctions and hemidesmosomes, and are important for the transport of junctional proteins.
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Affiliation(s)
- Sophie Quintin
- IGBMC - CNRS UMR 7104 - INSERM U964 - Université de Strasbourg, 1 rue Laurent Fries, BP 10142, Illkirch 67404, Cedex, France
| | - Shahoe Wang
- Ludwig Institute for Cancer Research, Department of Cellular and Molecular Medicine, University of California, San Diego, La Jolla, CA 92037, USA
| | - Julien Pontabry
- IGBMC - CNRS UMR 7104 - INSERM U964 - Université de Strasbourg, 1 rue Laurent Fries, BP 10142, Illkirch 67404, Cedex, France
| | - Ambre Bender
- IGBMC - CNRS UMR 7104 - INSERM U964 - Université de Strasbourg, 1 rue Laurent Fries, BP 10142, Illkirch 67404, Cedex, France
| | - François Robin
- Institut de Biologie Paris Seine, IBPS FR3631, Université Pierre et Marie Curie, 7-9 Quai Saint Bernard, Paris 75005, France
| | - Vincent Hyenne
- IGBMC - CNRS UMR 7104 - INSERM U964 - Université de Strasbourg, 1 rue Laurent Fries, BP 10142, Illkirch 67404, Cedex, France
| | - Frédéric Landmann
- IGBMC - CNRS UMR 7104 - INSERM U964 - Université de Strasbourg, 1 rue Laurent Fries, BP 10142, Illkirch 67404, Cedex, France
| | - Christelle Gally
- IGBMC - CNRS UMR 7104 - INSERM U964 - Université de Strasbourg, 1 rue Laurent Fries, BP 10142, Illkirch 67404, Cedex, France
| | - Karen Oegema
- Ludwig Institute for Cancer Research, Department of Cellular and Molecular Medicine, University of California, San Diego, La Jolla, CA 92037, USA
| | - Michel Labouesse
- IGBMC - CNRS UMR 7104 - INSERM U964 - Université de Strasbourg, 1 rue Laurent Fries, BP 10142, Illkirch 67404, Cedex, France Institut de Biologie Paris Seine, IBPS FR3631, Université Pierre et Marie Curie, 7-9 Quai Saint Bernard, Paris 75005, France
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Arnette C, Koetsier JL, Hoover P, Getsios S, Green KJ. In Vitro Model of the Epidermis: Connecting Protein Function to 3D Structure. Methods Enzymol 2015; 569:287-308. [PMID: 26778564 DOI: 10.1016/bs.mie.2015.07.015] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Much of our understanding of the biological processes that underlie cellular functions in humans, such as cell-cell communication, intracellular signaling, and transcriptional and posttranscriptional control of gene expression, has been acquired from studying cells in a two-dimensional (2D) tissue culture environment. However, it has become increasingly evident that the 2D environment does not support certain cell functions. The need for more physiologically relevant models prompted the development of three-dimensional (3D) cultures of epithelial, endothelial, and neuronal tissues (Shamir & Ewald, 2014). These models afford investigators with powerful tools to study the contribution of spatial organization, often in the context of relevant extracellular matrix and stromal components, to cellular and tissue homeostasis in normal and disease states.
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Affiliation(s)
- Christopher Arnette
- Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Jennifer L Koetsier
- Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Paul Hoover
- Department of Dermatology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Spiro Getsios
- Department of Dermatology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA; Department of Cell and Molecular Biology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA; Robert H. Lurie Comprehensive Cancer Center, Northwestern University, Chicago, Illinois, USA
| | - Kathleen J Green
- Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA; Department of Dermatology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA; Robert H. Lurie Comprehensive Cancer Center, Northwestern University, Chicago, Illinois, USA.
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