1
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Barwell T, Raina S, Page A, MacCharles H, Seroude L. Juvenile and adult expression of polyglutamine expanded huntingtin produce distinct aggregate distributions in Drosophila muscle. Hum Mol Genet 2023; 32:2656-2668. [PMID: 37369041 DOI: 10.1093/hmg/ddad098] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 05/09/2023] [Accepted: 06/02/2023] [Indexed: 06/29/2023] Open
Abstract
While Huntington's disease (HD) is widely recognized as a disease affecting the nervous system, much evidence has accumulated to suggest peripheral or non-neuronal tissues are affected as well. Here, we utilize the UAS/GAL4 system to express a pathogenic HD construct in the muscle of the fly and characterize the effects. We observe detrimental phenotypes such as a reduced lifespan, decreased locomotion and accumulation of protein aggregates. Strikingly, depending on the GAL4 driver used to express the construct, we saw different aggregate distributions and severity of phenotypes. These different aggregate distributions were found to be dependent on the expression level and the timing of expression. Hsp70, a well-documented suppressor of polyglutamine aggregates, was found to strongly reduce the accumulation of aggregates in the eye, but in the muscle, it did not prevent the reduction of the lifespan. Therefore, the molecular mechanisms underlying the detrimental effects of aggregates in the muscle are distinct from the nervous system.
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Affiliation(s)
- Taylor Barwell
- Department of Biology, Queen's University, 116 Barrie St, Kingston, Ontario, K7L 3N6, Canada
| | - Sehaj Raina
- Department of Biology, Queen's University, 116 Barrie St, Kingston, Ontario, K7L 3N6, Canada
| | - Austin Page
- Department of Biology, Queen's University, 116 Barrie St, Kingston, Ontario, K7L 3N6, Canada
| | - Hayley MacCharles
- Department of Biology, Queen's University, 116 Barrie St, Kingston, Ontario, K7L 3N6, Canada
| | - Laurent Seroude
- Department of Biology, Queen's University, 116 Barrie St, Kingston, Ontario, K7L 3N6, Canada
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2
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González Morales N, Marescal O, Szikora S, Katzemich A, Correia-Mesquita T, Bíró P, Erdelyi M, Mihály J, Schöck F. The oxoglutarate dehydrogenase complex is involved in myofibril growth and Z-disc assembly in Drosophila. J Cell Sci 2023; 136:jcs260717. [PMID: 37272588 PMCID: PMC10323237 DOI: 10.1242/jcs.260717] [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: 10/17/2022] [Accepted: 05/24/2023] [Indexed: 06/06/2023] Open
Abstract
Myofibrils are long intracellular cables specific to muscles, composed mainly of actin and myosin filaments. The actin and myosin filaments are organized into repeated units called sarcomeres, which form the myofibrils. Muscle contraction is achieved by the simultaneous shortening of sarcomeres, which requires all sarcomeres to be the same size. Muscles have a variety of ways to ensure sarcomere homogeneity. We have previously shown that the controlled oligomerization of Zasp proteins sets the diameter of the myofibril. Here, we looked for Zasp-binding proteins at the Z-disc to identify additional proteins coordinating myofibril growth and assembly. We found that the E1 subunit of the oxoglutarate dehydrogenase complex localizes to both the Z-disc and the mitochondria, and is recruited to the Z-disc by Zasp52. The three subunits of the oxoglutarate dehydrogenase complex are required for myofibril formation. Using super-resolution microscopy, we revealed the overall organization of the complex at the Z-disc. Metabolomics identified an amino acid imbalance affecting protein synthesis as a possible cause of myofibril defects, which is supported by OGDH-dependent localization of ribosomes at the Z-disc.
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Affiliation(s)
- Nicanor González Morales
- Department of Biology, McGill University, Quebec H3A 1B1, Canada
- Department of Biology, Dalhousie University, Nova Scotia B3H 4R2, Canada
| | - Océane Marescal
- Department of Biology, McGill University, Quebec H3A 1B1, Canada
| | - Szilárd Szikora
- Institute of Genetics, Biological Research Centre, Hungarian Academy of Sciences, Szeged 6726, Hungary
| | - Anja Katzemich
- Department of Biology, McGill University, Quebec H3A 1B1, Canada
| | | | - Péter Bíró
- Department of Optics and Quantum Electronics, University of Szeged, Szeged 6720, Hungary
| | - Miklos Erdelyi
- Department of Optics and Quantum Electronics, University of Szeged, Szeged 6720, Hungary
| | - József Mihály
- Institute of Genetics, Biological Research Centre, Hungarian Academy of Sciences, Szeged 6726, Hungary
- Department of Genetics, University of Szeged, Szeged 6726, Hungary
| | - Frieder Schöck
- Department of Biology, McGill University, Quebec H3A 1B1, Canada
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3
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Weaver LN. Analysis of Physiological Control of Adult Drosophila Oogenesis by Interorgan Communication. Methods Mol Biol 2023; 2626:89-107. [PMID: 36715901 DOI: 10.1007/978-1-0716-2970-3_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] [Indexed: 01/31/2023]
Abstract
Tissue homeostasis is dependent on the interaction between various organs within an organism in response to physiological inputs. The adult Drosophila melanogaster ovary is sensitive to environmental challenges and has recently been shown to be regulated by signaling from peripheral organs. To dissect the intricate coordination between overall organism health and reproduction, it is necessary to meticulously characterize both experimental tools and oogenesis processes. This chapter provides a guide for the careful analysis of interorgan communication in regulating oogenesis in adult Drosophila melanogaster.
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Affiliation(s)
- Lesley N Weaver
- Department of Biology, Indiana University, Bloomington, IN, USA.
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4
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Katti P, Ajayi PT, Aponte A, Bleck CKE, Glancy B. Identification of evolutionarily conserved regulators of muscle mitochondrial network organization. Nat Commun 2022; 13:6622. [PMID: 36333356 PMCID: PMC9636386 DOI: 10.1038/s41467-022-34445-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Accepted: 10/25/2022] [Indexed: 11/06/2022] Open
Abstract
Mitochondrial networks provide coordinated energy distribution throughout muscle cells. However, pathways specifying mitochondrial networks are incompletely understood and it is unclear how they might affect contractile fiber-type. Here, we show that natural energetic demands placed on Drosophila melanogaster muscles yield native cell-types among which contractile and mitochondrial network-types are regulated differentially. Proteomic analyses of indirect flight, jump, and leg muscles, together with muscles misexpressing known fiber-type specification factor salm, identified transcription factors H15 and cut as potential mitochondrial network regulators. We demonstrate H15 operates downstream of salm regulating flight muscle contractile and mitochondrial network-type. Conversely, H15 regulates mitochondrial network configuration but not contractile type in jump and leg muscles. Further, we find that cut regulates salm expression in flight muscles and mitochondrial network configuration in leg muscles. These data indicate cell type-specific regulation of muscle mitochondrial network organization through evolutionarily conserved transcription factors cut, salm, and H15.
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Affiliation(s)
- Prasanna Katti
- National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Peter T Ajayi
- National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Angel Aponte
- National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Christopher K E Bleck
- National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Brian Glancy
- National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, 20892, USA.
- National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, MD, 20892, USA.
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5
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An insight on Drosophila myogenesis and its assessment techniques. Mol Biol Rep 2020; 47:9849-9863. [PMID: 33263930 DOI: 10.1007/s11033-020-06006-0] [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: 04/10/2020] [Accepted: 11/16/2020] [Indexed: 10/22/2022]
Abstract
Movement assisted by muscles forms the basis of various behavioural traits seen in Drosophila. Myogenesis involves developmental processes like cellular specification, differentiation, migration, fusion, adherence to tendons and neuronal innervation in a series of coordinated event well defined in body space and time. Gene regulatory networks are switched on-off, fine tuning at the right developmental stage to assist each cellular event. Drosophila is a holometabolous organism that undergoes myogenesis waves at two developmental stages, and is ideal for comparative analysis of the role of genes and genetic pathways conserved across phyla. In this review we have summarized myogenic events from the embryo to adult focussing on the somatic muscle development during the early embryonic stage and then on indirect flight muscles (IFM) formation required for adult life, emphasizing on recent trends of analysing muscle mutants and advances in Drosophila muscle biology.
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6
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Szikora S, Novák T, Gajdos T, Erdélyi M, Mihály J. Superresolution Microscopy of Drosophila Indirect Flight Muscle Sarcomeres. Bio Protoc 2020; 10:e3654. [PMID: 33659324 DOI: 10.21769/bioprotoc.3654] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 04/14/2020] [Accepted: 04/17/2020] [Indexed: 11/02/2022] Open
Abstract
Sarcomeres are extremely highly ordered macromolecular assemblies where proper structural organization is an absolute prerequisite to the functionality of these contractile units. Despite the wealth of information collected, the exact spatial arrangement of many of the H-zone and Z-disk proteins remained unknown. Recently, we developed a powerful nanoscopic approach to localize the sarcomeric protein components with a resolution well below the diffraction limit. The ease of sample preparation and the near crystalline structure of the Drosophila flight muscle sarcomeres make them ideally suitable for single molecule localization microscopy and structure averaging. Our approach allowed us to determine the position of dozens of H-zone and Z-disk proteins with a quasi-molecular, ~5-10 nm localization precision. The protocol described below provides an easy and reproducible method to prepare individual myofibrils for dSTORM imaging. In addition, it includes an in-depth description of a custom made and freely available software toolbox to process and quantitatively analyze the raw localization data.
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Affiliation(s)
- Szilárd Szikora
- Institute of Genetics, Biological Research Centre, Szeged, Hungary.,Department of Optics and Quantum Electronics, University of Szeged, Szeged, Hungary
| | - Tibor Novák
- Department of Optics and Quantum Electronics, University of Szeged, Szeged, Hungary
| | - Tamás Gajdos
- Department of Optics and Quantum Electronics, University of Szeged, Szeged, Hungary
| | - Miklós Erdélyi
- Department of Optics and Quantum Electronics, University of Szeged, Szeged, Hungary
| | - József Mihály
- Institute of Genetics, Biological Research Centre, Szeged, Hungary.,Department of Optics and Quantum Electronics, University of Szeged, Szeged, Hungary
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7
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Marescal O, Schӧck F, González-Morales N. Bimolecular Fluorescence Complementation (BiFC) for Studying Sarcomeric Protein Interactions in Drosophila. Bio Protoc 2020; 10:e3569. [PMID: 33659539 DOI: 10.21769/bioprotoc.3569] [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: 12/29/2019] [Revised: 02/11/2020] [Accepted: 02/13/2020] [Indexed: 11/02/2022] Open
Abstract
Protein-protein interactions in Drosophila myofibrils are essential for their function and formation. Bimolecular Fluorescence Complementation (BiFC) is an effective method for studying protein interactions and localization. BiFC relies on the reconstitution of a monomeric fluorescent protein from two half-fragments when in proximity. Two proteins tagged with the different half-fragments emit a fluorescent signal when they are in physical contact, thus revealing a protein interaction and its spatial distribution. Because myofibrils are large networks of interconnected proteins, BIFC is an ideal method to study protein-protein interactions in myofibrils. Here we present a protocol for generating transgenic flies compatible with BiFC and a method for analyzing protein-protein interactions based on the fluorescent BiFC signal in myofibrils. Our protocol is applicable to the majority of Drosophila proteins and with few modifications may be used to study any tissue.
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8
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Cao T, Sujkowski A, Cobb T, Wessells RJ, Jin JP. The glutamic acid-rich-long C-terminal extension of troponin T has a critical role in insect muscle functions. J Biol Chem 2020; 295:3794-3807. [PMID: 32024695 PMCID: PMC7086023 DOI: 10.1074/jbc.ra119.012014] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Revised: 02/03/2020] [Indexed: 12/12/2022] Open
Abstract
The troponin complex regulates the Ca2+ activation of myofilaments during striated muscle contraction and relaxation. Troponin genes emerged 500-700 million years ago during early animal evolution. Troponin T (TnT) is the thin-filament-anchoring subunit of troponin. Vertebrate and invertebrate TnTs have conserved core structures, reflecting conserved functions in regulating muscle contraction, and they also contain significantly diverged structures, reflecting muscle type- and species-specific adaptations. TnT in insects contains a highly-diverged structure consisting of a long glutamic acid-rich C-terminal extension of ∼70 residues with unknown function. We found here that C-terminally truncated Drosophila TnT (TpnT-CD70) retains binding of tropomyosin, troponin I, and troponin C, indicating a preserved core structure of TnT. However, the mutant TpnTCD70 gene residing on the X chromosome resulted in lethality in male flies. We demonstrate that this X-linked mutation produces dominant-negative phenotypes, including decreased flying and climbing abilities, in heterozygous female flies. Immunoblot quantification with a TpnT-specific mAb indicated expression of TpnT-CD70 in vivo and normal stoichiometry of total TnT in myofilaments of heterozygous female flies. Light and EM examinations revealed primarily normal sarcomere structures in female heterozygous animals, whereas Z-band streaming could be observed in the jump muscle of these flies. Although TpnT-CD70-expressing flies exhibited lower resistance to cardiac stress, their hearts were significantly more tolerant to Ca2+ overloading induced by high-frequency electrical pacing. Our findings suggest that the Glu-rich long C-terminal extension of insect TnT functions as a myofilament Ca2+ buffer/reservoir and is potentially critical to the high-frequency asynchronous contraction of flight muscles.
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Affiliation(s)
- Tianxin Cao
- Department of Physiology, Wayne State University School of Medicine, Detroit, Michigan 48201
| | - Alyson Sujkowski
- Department of Physiology, Wayne State University School of Medicine, Detroit, Michigan 48201
| | - Tyler Cobb
- Department of Physiology, Wayne State University School of Medicine, Detroit, Michigan 48201
| | - Robert J Wessells
- Department of Physiology, Wayne State University School of Medicine, Detroit, Michigan 48201
| | - Jian-Ping Jin
- Department of Physiology, Wayne State University School of Medicine, Detroit, Michigan 48201
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9
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Flying High-Muscle-Specific Underreplication in Drosophila. Genes (Basel) 2020; 11:genes11030246. [PMID: 32111003 PMCID: PMC7140820 DOI: 10.3390/genes11030246] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2020] [Revised: 02/25/2020] [Accepted: 02/25/2020] [Indexed: 12/16/2022] Open
Abstract
Drosophila underreplicate the DNA of thoracic nuclei, stalling during S phase at a point that is proportional to the total genome size in each species. In polytene tissues, such as the Drosophila salivary glands, all of the nuclei initiate multiple rounds of DNA synthesis and underreplicate. Yet, only half of the nuclei isolated from the thorax stall; the other half do not initiate S phase. Our question was, why half? To address this question, we use flow cytometry to compare underreplication phenotypes between thoracic tissues. When individual thoracic tissues are dissected and the proportion of stalled DNA synthesis is scored in each tissue type, we find that underreplication occurs in the indirect flight muscle, with the majority of underreplicated nuclei in the dorsal longitudinal muscles (DLM). Half of the DNA in the DLM nuclei stall at S phase between the unreplicated G0 and fully replicated G1. The dorsal ventral flight muscle provides the other source of underreplication, and yet, there, the replication stall point is earlier (less DNA replicated), and the endocycle is initiated. The differences in underreplication and ploidy in the indirect flight muscles provide a new tool to study heterochromatin, underreplication and endocycle control.
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10
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González-Morales N, Xiao YS, Schilling MA, Marescal O, Liao KA, Schöck F. Myofibril diameter is set by a finely tuned mechanism of protein oligomerization in Drosophila. eLife 2019; 8:50496. [PMID: 31746737 PMCID: PMC6910826 DOI: 10.7554/elife.50496] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Accepted: 11/18/2019] [Indexed: 11/13/2022] Open
Abstract
Myofibrils are huge cytoskeletal assemblies embedded in the cytosol of muscle cells. They consist of arrays of sarcomeres, the smallest contractile unit of muscles. Within a muscle type, myofibril diameter is highly invariant and contributes to its physiological properties, yet little is known about the underlying mechanisms setting myofibril diameter. Here we show that the PDZ and LIM domain protein Zasp, a structural component of Z-discs, mediates Z-disc and thereby myofibril growth through protein oligomerization. Oligomerization is induced by an interaction of its ZM domain with LIM domains. Oligomerization is terminated upon upregulation of shorter Zasp isoforms which lack LIM domains at later developmental stages. The balance between these two isoforms, which we call growing and blocking isoforms sets the stereotyped diameter of myofibrils. If blocking isoforms dominate, myofibrils become smaller. If growing isoforms dominate, myofibrils and Z-discs enlarge, eventually resulting in large pathological aggregates that disrupt muscle function.
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Affiliation(s)
| | - Yu Shu Xiao
- Department of Biology, McGill University, Montreal, Canada
| | | | | | - Kuo An Liao
- Department of Biology, McGill University, Montreal, Canada
| | - Frieder Schöck
- Department of Biology, McGill University, Montreal, Canada
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11
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González-Morales N, Marsh TW, Katzemich A, Marescal O, Xiao YS, Schöck F. Different Evolutionary Trajectories of Two Insect-Specific Paralogous Proteins Involved in Stabilizing Muscle Myofibrils. Genetics 2019; 212:743-755. [PMID: 31123042 PMCID: PMC6614898 DOI: 10.1534/genetics.119.302217] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Accepted: 05/07/2019] [Indexed: 12/17/2022] Open
Abstract
Alp/Enigma family members have a unique PDZ domain followed by zero to four LIM domains, and are essential for myofibril assembly across all species analyzed so far. Drosophila melanogaster has three Alp/Enigma family members, Zasp52, Zasp66, and Zasp67. Ortholog search and phylogenetic tree analysis suggest that Zasp genes have a common ancestor, and that Zasp66 and Zasp67 arose by duplication in insects. While Zasp66 has a conserved domain structure across orthologs, Zasp67 domains and lengths are highly variable. In flies, Zasp67 appears to be expressed only in indirect flight muscles, where it colocalizes with Zasp52 at Z-discs. We generated a CRISPR null mutant of Zasp67, which is viable but flightless. We can rescue all phenotypes by re-expressing a Zasp67 transgene at endogenous levels. Zasp67 mutants show extended and broken Z-discs in adult flies, indicating that the protein helps stabilize the highly regular myofibrils of indirect flight muscles. In contrast, a Zasp66 CRISPR null mutant has limited viability, but only mild indirect flight muscle defects illustrating the diverging evolutionary paths these two paralogous genes have taken since they arose by duplication.
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Affiliation(s)
| | - Thomas W Marsh
- Department of Biology, McGill University, Montreal, Quebec H3A 1B1, Canada
| | - Anja Katzemich
- Department of Biology, McGill University, Montreal, Quebec H3A 1B1, Canada
| | - Océane Marescal
- Department of Biology, McGill University, Montreal, Quebec H3A 1B1, Canada
| | - Yu Shu Xiao
- Department of Biology, McGill University, Montreal, Quebec H3A 1B1, Canada
| | - Frieder Schöck
- Department of Biology, McGill University, Montreal, Quebec H3A 1B1, Canada
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12
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Howard AM, LaFever KS, Fenix AM, Scurrah CR, Lau KS, Burnette DT, Bhave G, Ferrell N, Page-McCaw A. DSS-induced damage to basement membranes is repaired by matrix replacement and crosslinking. J Cell Sci 2019; 132:jcs.226860. [PMID: 30837285 DOI: 10.1242/jcs.226860] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Accepted: 02/22/2019] [Indexed: 12/12/2022] Open
Abstract
Basement membranes are an ancient form of animal extracellular matrix. As important structural and functional components of tissues, basement membranes are subject to environmental damage and must be repaired while maintaining functions. Little is known about how basement membranes get repaired. This paucity stems from a lack of suitable in vivo models for analyzing such repair. Here, we show that dextran sodium sulfate (DSS) directly damages the gut basement membrane when fed to adult Drosophila DSS becomes incorporated into the basement membrane, promoting its expansion while decreasing its stiffness, which causes morphological changes to the underlying muscles. Remarkably, two days after withdrawal of DSS, the basement membrane is repaired by all measures of analysis. We used this new damage model to determine that repair requires collagen crosslinking and replacement of damaged components. Genetic and biochemical evidence indicates that crosslinking is required to stabilize the newly incorporated repaired Collagen IV rather than to stabilize the damaged Collagen IV. These results suggest that basement membranes are surprisingly dynamic.
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Affiliation(s)
- Angela M Howard
- Department of Cell and Developmental Biology, Vanderbilt University School of Medicine, Nashville, TN 37240-7935, USA.,Center for Matrix Biology, Vanderbilt University Medical Center, Nashville, TN 37232, USA.,Program in Developmental Biology, Vanderbilt University, Nashville, TN 37232, USA
| | - Kimberly S LaFever
- Department of Cell and Developmental Biology, Vanderbilt University School of Medicine, Nashville, TN 37240-7935, USA
| | - Aidan M Fenix
- Department of Cell and Developmental Biology, Vanderbilt University School of Medicine, Nashville, TN 37240-7935, USA
| | - Cherie' R Scurrah
- Department of Cell and Developmental Biology, Vanderbilt University School of Medicine, Nashville, TN 37240-7935, USA.,Program in Developmental Biology, Vanderbilt University, Nashville, TN 37232, USA.,Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Ken S Lau
- Department of Cell and Developmental Biology, Vanderbilt University School of Medicine, Nashville, TN 37240-7935, USA.,Program in Developmental Biology, Vanderbilt University, Nashville, TN 37232, USA.,Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Dylan T Burnette
- Department of Cell and Developmental Biology, Vanderbilt University School of Medicine, Nashville, TN 37240-7935, USA.,Program in Developmental Biology, Vanderbilt University, Nashville, TN 37232, USA
| | - Gautam Bhave
- Department of Cell and Developmental Biology, Vanderbilt University School of Medicine, Nashville, TN 37240-7935, USA.,Center for Matrix Biology, Vanderbilt University Medical Center, Nashville, TN 37232, USA.,Division of Nephrology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Nicholas Ferrell
- Division of Nephrology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37232, USA.,Department of Biomedical Engineering, Vanderbilt University, Nashville, TN 37235-1631, USA
| | - Andrea Page-McCaw
- Department of Cell and Developmental Biology, Vanderbilt University School of Medicine, Nashville, TN 37240-7935, USA .,Center for Matrix Biology, Vanderbilt University Medical Center, Nashville, TN 37232, USA.,Program in Developmental Biology, Vanderbilt University, Nashville, TN 37232, USA.,Program in Cancer Biology, Vanderbilt University School of Medicine, Nashville, TN 37232, USA
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