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White T, López-Márquez A, Badosa C, Jimenez-Mallebrera C, Samitier J, Giannotti MI, Lagunas A. Nanomechanics of cell-derived matrices as a functional read-out in collagen VI-related congenital muscular dystrophies. J R Soc Interface 2025; 22:20240860. [PMID: 40070338 PMCID: PMC11897821 DOI: 10.1098/rsif.2024.0860] [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: 12/03/2024] [Revised: 01/31/2025] [Accepted: 02/11/2025] [Indexed: 03/15/2025] Open
Abstract
Changes in the mechanical properties of the extracellular matrix (ECM) are a hallmark of disease. Due to its relevance, several in vitro models have been developed for the ECM, including cell-derived matrices (CDMs). CDMs are decellularized natural ECMs assembled by cells that closely mimic the in vivo stromal fibre organization and molecular content. Here, we applied atomic force microscopy-force spectroscopy (AFM-FS) to evaluate the nanomechanical properties of CDMs obtained from patients diagnosed with collagen VI-related congenital muscular dystrophies (COL6-RDs). COL6-RDs are a set of neuromuscular conditions caused by pathogenic variants in any of the three major COL6 genes, which result in deficiency or dysfunction of the COL6 incorporated into the ECM of connective tissues. Current diagnosis includes the genetic confirmation of the disease and categorization of the phenotype based on maximum motor ability, as no direct correlation exists between genotype and phenotype of COL6-RDs. We describe differences in the elastic modulus (E) among CDMs from patients with different clinical phenotypes, as well as the restoration of E in CDMs obtained from genetically edited cells. Results anticipate the potential of the nanomechanical analysis of CDMs as a complementary clinical tool, providing phenotypic information about COL6-RDs and their response to gene therapies.
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Affiliation(s)
- Tom White
- Nanobioengineering Group, Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute for Science and Technology (BIST), Barcelona, Spain
| | - Arístides López-Márquez
- Laboratorio de Investigación Aplicada en Enfermedades Neuromusculares, Institut de Recerca Sant Joan de Déu, Barcelona, Catalunya, Spain
- Unidad de Patología Neuromuscular, Servicio de Neuropediatría, Hospital Sant Joan de Déu, Barcelona, Catalunya, Spain
- CIBER-ER, ISCIII, Madrid, Spain
- Department of Genetics, Microbiology and Statistics, Faculty of Biology, University of Barcelona, Barcelona, Spain
| | - Carmen Badosa
- Laboratorio de Investigación Aplicada en Enfermedades Neuromusculares, Institut de Recerca Sant Joan de Déu, Barcelona, Catalunya, Spain
- Unidad de Patología Neuromuscular, Servicio de Neuropediatría, Hospital Sant Joan de Déu, Barcelona, Catalunya, Spain
- CIBER-ER, ISCIII, Madrid, Spain
- Department of Genetics, Microbiology and Statistics, Faculty of Biology, University of Barcelona, Barcelona, Spain
| | - Cecilia Jimenez-Mallebrera
- Laboratorio de Investigación Aplicada en Enfermedades Neuromusculares, Institut de Recerca Sant Joan de Déu, Barcelona, Catalunya, Spain
- Unidad de Patología Neuromuscular, Servicio de Neuropediatría, Hospital Sant Joan de Déu, Barcelona, Catalunya, Spain
- CIBER-ER, ISCIII, Madrid, Spain
| | - Josep Samitier
- Nanobioengineering Group, Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute for Science and Technology (BIST), Barcelona, Spain
- CIBER-BBN, ISCIII, Madrid, Spain
- Department of Electronic and Biomedical Engineering, University of Barcelona, Barcelona, Spain
| | - Marina Inés Giannotti
- CIBER-BBN, ISCIII, Madrid, Spain
- Nanoprobes and Nanoswitches, Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST), Barcelona, Spain
- Department of Materials Science and Physical Chemistry, University of Barcelona, Barcelona, Spain
| | - Anna Lagunas
- Nanobioengineering Group, Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute for Science and Technology (BIST), Barcelona, Spain
- CIBER-BBN, ISCIII, Madrid, Spain
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2
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Avera AD, Gibson DJ, Birge ML, Schnorbus TN, Concannon IM, Kim Y. Characterization of Native Extracellular Matrix of Patient-Derived Glioblastoma Multiforme Organoids. Tissue Eng Part A 2025. [PMID: 39969953 DOI: 10.1089/ten.tea.2024.0303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/20/2025] Open
Abstract
Model systems play a crucial role in biological and biomedical research, especially in the search for new treatments for challenging diseases such as glioblastoma multiforme (GBM). Organoids are 3D in vitro multicellular "middle-ground" model systems that recapitulate highly organized and heterogeneous in vivo organ-like systems, often through stem cell differentiation. Incorporating Matrigel™ or other exogenous extracellular matrices (ECMs) that do not naturally occur in the human body is common practice for organoid generation, ignoring the role of dynamic reciprocity between the cells and the ECM in tissue development. In this study, we describe a method to develop GBM organoids (GBOs) from cells without the need for exogenous ECM encapsulation and without cell culture media changes to produce stable tissue-like organoids that reach a 4 mm diameter in as little as 6 weeks. We observed a transition from homogenous cell populations to tissue-like structures when GBOs were larger than 1 mm in diameter. Transcriptomic analysis revealed that the greatest gene expression changes occurred when GBOs were 2 mm in diameter, with collagen VI as the most upregulated ECM-related gene. Quantitative and histochemical assessments further supported native ECM synthesis with significantly higher levels of glycosaminoglycans and collagen in GBOs compared with spheroids. To our knowledge, this study presents the first reproducibly large GBOs with natively produced ECMs. Organoids with natively synthesized ECMs promise to eliminate artifacts and variability from aged, homogeneic, or xenogeneic scaffolds and to provide insights for ECM-targeted drug development.
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Affiliation(s)
- Alexandra D Avera
- Department of Chemical and Biological Engineering, The University of Alabama, Tuscaloosa, Alabama, USA
| | - Daniel J Gibson
- Capstone College of Nursing, The University of Alabama, Tuscaloosa, Alabama, USA
| | - Macy L Birge
- Department of Chemical and Biological Engineering, The University of Alabama, Tuscaloosa, Alabama, USA
| | - Taylor N Schnorbus
- Department of Chemical and Biological Engineering, The University of Alabama, Tuscaloosa, Alabama, USA
| | - Isabella M Concannon
- Department of Chemical and Biological Engineering, The University of Alabama, Tuscaloosa, Alabama, USA
| | - Yonghyun Kim
- Department of Chemical and Biological Engineering, The University of Alabama, Tuscaloosa, Alabama, USA
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Benati D, Cattin E, Corradi F, Ferrari T, Pedrazzoli E, Patrizi C, Marchionni M, Bertorelli R, De Sanctis V, Merlini L, Ferlini A, Sabatelli P, Gualandi F, Recchia A. Restored Collagen VI Microfilaments Network in the Extracellular Matrix of CRISPR-Edited Ullrich Congenital Muscular Dystrophy Fibroblasts. Biomolecules 2024; 14:1412. [PMID: 39595588 PMCID: PMC11591638 DOI: 10.3390/biom14111412] [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: 09/19/2024] [Revised: 10/29/2024] [Accepted: 11/04/2024] [Indexed: 11/28/2024] Open
Abstract
Collagen VI is an essential component of the extracellular matrix (ECM) composed by α1, α2 and α3 chains and encoded by COL6A1, COL6A2 and COL6A3 genes. Dominant negative pathogenic variants in COL6A genes result in defects in collagen VI protein and are implicated in the pathogenesis of muscular diseases, including Ullrich congenital muscular dystrophy (UCMD). Here, we designed a CRISPR genome editing strategy to tackle a dominant heterozygous deletion c.824_838del in exon 9 of the COL6A1 gene, causing a lack of secreted collagen VI in a patient's dermal fibroblasts. The evaluation of efficiency and specificity of gene editing in treating patient's fibroblasts revealed the 32% efficiency of editing the mutated allele but negligible editing of the wild-type allele. CRISPR-treated UCMD skin fibroblasts rescued the secretion of collagen VI in the ECM, which restored the ultrastructure of the collagen VI microfibril network. By using normal melanocytes as surrogates of muscle cells, we found that collagen VI secreted by the corrected patient's skin fibroblasts recovered the anchorage to the cell surface, pointing to a functional improvement of the protein properties. These results support the application of the CRISPR editing approach to knock out COL6A1 mutated alleles and rescue the UCMD phenotype in patient-derived fibroblasts.
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Affiliation(s)
- Daniela Benati
- Department of Life Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy; (D.B.); (E.C.); (F.C.); (T.F.); (E.P.); (C.P.); (M.M.)
| | - Eleonora Cattin
- Department of Life Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy; (D.B.); (E.C.); (F.C.); (T.F.); (E.P.); (C.P.); (M.M.)
| | - Federico Corradi
- Department of Life Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy; (D.B.); (E.C.); (F.C.); (T.F.); (E.P.); (C.P.); (M.M.)
| | - Tommaso Ferrari
- Department of Life Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy; (D.B.); (E.C.); (F.C.); (T.F.); (E.P.); (C.P.); (M.M.)
| | - Eleonora Pedrazzoli
- Department of Life Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy; (D.B.); (E.C.); (F.C.); (T.F.); (E.P.); (C.P.); (M.M.)
| | - Clarissa Patrizi
- Department of Life Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy; (D.B.); (E.C.); (F.C.); (T.F.); (E.P.); (C.P.); (M.M.)
| | - Matteo Marchionni
- Department of Life Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy; (D.B.); (E.C.); (F.C.); (T.F.); (E.P.); (C.P.); (M.M.)
| | - Roberto Bertorelli
- Next Generation Sequencing Core Facility Department of Cellular, Computational and Integrative Biomedicine—CIBIO LaBSSAH, University of Trento, 38122 Trento, Italy; (R.B.); (V.D.S.)
| | - Veronica De Sanctis
- Next Generation Sequencing Core Facility Department of Cellular, Computational and Integrative Biomedicine—CIBIO LaBSSAH, University of Trento, 38122 Trento, Italy; (R.B.); (V.D.S.)
| | - Luciano Merlini
- Department of Biomedical and Neuromotor Science, DIBINEM, University of Bologna, 40136 Bologna, Italy;
| | - Alessandra Ferlini
- Section of Medical Genetics, Department of Medical Sciences, University of Ferrara, 44121 Ferrara, Italy;
- Unit of Medical Genetics, Department of Mother and Child, University Hospital S. Anna Ferrara, 44121 Ferrara, Italy;
| | - Patrizia Sabatelli
- CNR-Institute of Molecular Genetics, 40136 Bologna, Italy;
- IRCCS Istituto Ortopedico Rizzoli, 40136 Bologna, Italy
| | - Francesca Gualandi
- Unit of Medical Genetics, Department of Mother and Child, University Hospital S. Anna Ferrara, 44121 Ferrara, Italy;
| | - Alessandra Recchia
- Department of Life Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy; (D.B.); (E.C.); (F.C.); (T.F.); (E.P.); (C.P.); (M.M.)
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4
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Xing R, Yu H, Yu J, Zeng R, Xiang Z, Ma H, Li G, Zhao Y. Identification of key genes affecting ventilator-induced diaphragmatic dysfunction in diabetic mice. Front Genet 2024; 15:1387688. [PMID: 38784031 PMCID: PMC11112022 DOI: 10.3389/fgene.2024.1387688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2024] [Accepted: 04/23/2024] [Indexed: 05/25/2024] Open
Abstract
Background Mechanical ventilation (MV) is often required in critically ill patients. However, prolonged mechanical ventilation can lead to Ventilator-induced diaphragmatic dysfunction (VIDD), resulting in difficulty in extubation after tracheal intubation, prolonged ICU stay, and increased mortality. At present, the incidence of diabetes is high in the world, and the prognosis of diabetic patients with mechanical ventilation is generally poor. Therefore, the role of diabetes in the development of VIDD needs to be discovered. Methods MV modeling was performed on C57 mice and DB mice, and the control group was set up in each group. After 12 h of mechanical ventilation, the muscle strength of the diaphragm was measured, and the muscle fiber immunofluorescence staining was used to verify the successful establishment of the MV model. RNA sequencing (RNA-seq) method was used to detect mRNA expression levels of the diaphragms of each group, and then differential expressed gene analysis, Heatmap analysis, WGCNA analysis, Venn analysis, GO and KEGG enrichment analysis were performed. qRT-PCR was used to verify the expression of the selected mRNAs. Results Our results showed that, compared with C57 control mice, the muscle strength and muscle fiber cross-sectional area of mice after mechanical ventilation decreased, and DB mice showed more obvious in this respect. RNA-seq showed that these differential expressed (DE) mRNAs were mainly related to genes such as extracellular matrix, collagen, elastic fiber and Fbxo32. GO and KEGG enrichment analysis showed that the signaling pathways associated with diabetes were mainly as follows: extracellular matrix (ECM), protein digestion and absorption, PI3K-Akt signaling pathway, calcium signaling pathway, MAPK signaling pathway and AGE-RAGE signaling pathway in diabetic complications, etc. ECM has the closest relationship with VIDD in diabetic mice. The key genes determined by WGCNA and Venn analysis were validated by quantitative real-time polymerase chain reaction (qRT-PCR), which exhibited trends similar to those observed by RNA-seq. Conclusion VIDD can be aggravated in diabetic environment. This study provides new evidence for mRNA changes after mechanical ventilation in diabetic mice, suggesting that ECM and collagen may play an important role in the pathophysiological mechanism and progression of VIDD in diabetic mice, and provides some clues for the research, diagnosis, and treatment of VIDD in diabetic context.
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Affiliation(s)
- Rongchun Xing
- Emergency Center, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
- The First College of Clinical Medical Science, Three Gorges University, Yichang, China
| | - Haibo Yu
- Emergency Center, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
| | - Jiangtao Yu
- Emergency Center, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
| | - Rong Zeng
- Emergency Center, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
| | - Zhijun Xiang
- Emergency Center, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
| | - Haoli Ma
- Department of Biological Repositories, Zhongnan Hospital of Wuhan University, Wuhan, China
- Yichang Central People’s Hospital, Yichang, Hubei, China
| | - Gang Li
- Department of Biological Repositories, Zhongnan Hospital of Wuhan University, Wuhan, China
- Yichang Central People’s Hospital, Yichang, Hubei, China
| | - Yan Zhao
- Emergency Center, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
- Hubei Clinical Research Center for Emergency and Resuscitation, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
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5
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Miyamoto S, Nishikiori N, Sato T, Watanabe M, Umetsu A, Tsugeno Y, Hikage F, Sasaya T, Kato H, Ogi K, Furuhashi M, Ohguro H, Miyazaki A. Three-Dimensional Spheroid Configurations and Cellular Metabolic Properties of Oral Squamous Carcinomas Are Possible Pharmacological and Pathological Indicators. Cancers (Basel) 2023; 15:2793. [PMID: 37345130 DOI: 10.3390/cancers15102793] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 05/12/2023] [Accepted: 05/15/2023] [Indexed: 06/23/2023] Open
Abstract
The objective of the current study was to elucidate the clinicopathological significance and appearance of in vitro three-dimension (3D) spheroid models of oral malignant tumors that were prepared from four pathologically different squamous cell carcinoma (OSCC; low-grade; SSYP and MO-1000, intermediate-grade; LEM2) and oral adenosquamous carcinoma (OASC; high-grade; Mesimo) obtained from patients with different malignant stages. To characterize the biological significance of these cell lines themselves, two-dimensional (2D) cultured cells were subjected to cellular metabolic analysis by a Seahorse bioanalyzer alongside the measurement of the cytotoxicity of cisplatin (CDDP). The appearance of their 3D spheroids was then observed by phase contrast microscopy, and both 2D and 3D cultured cells were subject to trypsin digestion and qPCR analysis of factors related to oncogenic signaling and other related analyses. ATP-linked respiration and proton leaking were significantly different among the four cell lines, and the malignant stages of these cultures were significantly associated with increased ATP-linked respiration and decreased proton leakage. Alternatively, the appearances of these 3D spheroids were also significantly diverse among them, and their differences increased in the order of LEM2, MO-1000, SSYP, and Mesimo. Interestingly, these orders were exactly the same in that the efficacies of CDDP-induced cytotoxicity increased in the same order. qPCR analysis indicated that the levels of expression of oncogenic signaling-related factors varied among these four cell lines, and the values for fibronectin and a key regulator of mitochondrial biogenesis, PGC-1α, were prominently elevated in cultures of the worst malignant Mesimo cells. In addition, although 0.25% trypsin-induced destruction was comparable among all four 2D cultured cells, the values for the 3D spheroids were also substantially varied among these cultures. The findings reported herein indicate that cellular metabolic functions and 3D spheroid architectures may be valuable and useful indicators for estimating the pathological and drug-sensitive aspects of OSCC and OASC malignancies.
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Affiliation(s)
- Sho Miyamoto
- Departments of Oral Surgery, Sapporo Medical University, S1W17, Chuo-ku, Spporo 060-8556, Japan
| | - Nami Nishikiori
- Departments of Ophthalmology, Sapporo Medical University, S1W17, Chuo-ku, Spporo 060-8556, Japan
| | - Tatsuya Sato
- Departments of Cardiovascular, Renal and Metabolic Medicine, Sapporo Medical University, S1W17, Chuo-ku, Spporo 060-8556, Japan
- Departments of Cellular Physiology and Signal Transduction, Sapporo Medical University, S1W17, Chuo-ku, Spporo 060-8556, Japan
| | - Megumi Watanabe
- Departments of Ophthalmology, Sapporo Medical University, S1W17, Chuo-ku, Spporo 060-8556, Japan
| | - Araya Umetsu
- Departments of Ophthalmology, Sapporo Medical University, S1W17, Chuo-ku, Spporo 060-8556, Japan
| | - Yuri Tsugeno
- Departments of Ophthalmology, Sapporo Medical University, S1W17, Chuo-ku, Spporo 060-8556, Japan
| | - Fumihito Hikage
- Departments of Ophthalmology, Sapporo Medical University, S1W17, Chuo-ku, Spporo 060-8556, Japan
| | - Takashi Sasaya
- Departments of Oral Surgery, Sapporo Medical University, S1W17, Chuo-ku, Spporo 060-8556, Japan
| | - Hirotaka Kato
- Departments of Oral Surgery, Sapporo Medical University, S1W17, Chuo-ku, Spporo 060-8556, Japan
| | - Kazuhiro Ogi
- Departments of Oral Surgery, Sapporo Medical University, S1W17, Chuo-ku, Spporo 060-8556, Japan
| | - Masato Furuhashi
- Departments of Cardiovascular, Renal and Metabolic Medicine, Sapporo Medical University, S1W17, Chuo-ku, Spporo 060-8556, Japan
| | - Hiroshi Ohguro
- Departments of Ophthalmology, Sapporo Medical University, S1W17, Chuo-ku, Spporo 060-8556, Japan
| | - Akihiro Miyazaki
- Departments of Oral Surgery, Sapporo Medical University, S1W17, Chuo-ku, Spporo 060-8556, Japan
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6
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Di Martino A, Cescon M, D’Agostino C, Schilardi F, Sabatelli P, Merlini L, Faldini C. Collagen VI in the Musculoskeletal System. Int J Mol Sci 2023; 24:5095. [PMID: 36982167 PMCID: PMC10049728 DOI: 10.3390/ijms24065095] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 02/26/2023] [Accepted: 03/01/2023] [Indexed: 03/10/2023] Open
Abstract
Collagen VI exerts several functions in the tissues in which it is expressed, including mechanical roles, cytoprotective functions with the inhibition of apoptosis and oxidative damage, and the promotion of tumor growth and progression by the regulation of cell differentiation and autophagic mechanisms. Mutations in the genes encoding collagen VI main chains, COL6A1, COL6A2 and COL6A3, are responsible for a spectrum of congenital muscular disorders, namely Ullrich congenital muscular dystrophy (UCMD), Bethlem myopathy (BM) and myosclerosis myopathy (MM), which show a variable combination of muscle wasting and weakness, joint contractures, distal laxity, and respiratory compromise. No effective therapeutic strategy is available so far for these diseases; moreover, the effects of collagen VI mutations on other tissues is poorly investigated. The aim of this review is to outline the role of collagen VI in the musculoskeletal system and to give an update about the tissue-specific functions revealed by studies on animal models and from patients' derived samples in order to fill the knowledge gap between scientists and the clinicians who daily manage patients affected by collagen VI-related myopathies.
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Affiliation(s)
- Alberto Di Martino
- I Orthopedic and Traumatology Department, IRCCS Istituto Ortopedico Rizzoli, 40136 Bologna, Italy
- Department of Biomedical and Neuromotor Science, DIBINEM, University of Bologna, 40136 Bologna, Italy
| | - Matilde Cescon
- Department of Molecular Medicine, University of Padova, 35131 Padova, Italy
| | - Claudio D’Agostino
- I Orthopedic and Traumatology Department, IRCCS Istituto Ortopedico Rizzoli, 40136 Bologna, Italy
- Department of Biomedical and Neuromotor Science, DIBINEM, University of Bologna, 40136 Bologna, Italy
| | - Francesco Schilardi
- I Orthopedic and Traumatology Department, IRCCS Istituto Ortopedico Rizzoli, 40136 Bologna, Italy
- Department of Biomedical and Neuromotor Science, DIBINEM, University of Bologna, 40136 Bologna, Italy
| | - Patrizia Sabatelli
- Unit of Bologna, CNR-Institute of Molecular Genetics “Luigi Luca Cavalli-Sforza”, 40136 Bologna, Italy
- IRCCS Istituto Ortopedico Rizzoli, 40136 Bologna, Italy
| | - Luciano Merlini
- Department of Biomedical and Neuromotor Science, DIBINEM, University of Bologna, 40136 Bologna, Italy
| | - Cesare Faldini
- I Orthopedic and Traumatology Department, IRCCS Istituto Ortopedico Rizzoli, 40136 Bologna, Italy
- Department of Biomedical and Neuromotor Science, DIBINEM, University of Bologna, 40136 Bologna, Italy
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Abbonante V, Malara A, Chrisam M, Metti S, Soprano P, Semplicini C, Bello L, Bozzi V, Battiston M, Pecci A, Pegoraro E, De Marco L, Braghetta P, Bonaldo P, Balduini A. Lack of COL6/collagen VI causes megakaryocyte dysfunction by impairing autophagy and inducing apoptosis. Autophagy 2023; 19:984-999. [PMID: 35857791 PMCID: PMC9980446 DOI: 10.1080/15548627.2022.2100105] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
Abstract
Endoplasmic reticulum stress is an emerging significant player in the molecular pathology of connective tissue disorders. In response to endoplasmic reticulum stress, cells can upregulate macroautophagy/autophagy, a fundamental cellular homeostatic process used by cells to degrade and recycle proteins or remove damaged organelles. In these scenarios, autophagy activation can support cell survival. Here we demonstrated by in vitro and in vivo approaches that megakaryocytes derived from col6a1-⁄- (collagen, type VI, alpha 1) null mice display increased intracellular retention of COL6 polypeptides, endoplasmic reticulum stress and apoptosis. The unfolded protein response is activated in col6a1-⁄- megakaryocytes, as evidenced by the upregulation of molecular chaperones, by the increased splicing of Xbp1 mRNA and by the higher level of the pro-apoptotic regulator DDIT3/CHOP. Despite the endoplasmic reticulum stress, basal autophagy is impaired in col6a1-⁄- megakaryocytes, which show lower BECN1 levels and reduced autophagosome maturation. Starvation and rapamycin treatment rescue the autophagic flux in col6a1-⁄- megakaryocytes, leading to a decrease in intracellular COL6 polypeptide retention, endoplasmic reticulum stress and apoptosis. Furthermore, megakaryocytes cultured from peripheral blood hematopoietic progenitors of patients affected by Bethlem myopathy and Ullrich congenital muscular dystrophy, two COL6-related disorders, displayed increased apoptosis, endoplasmic reticulum stress and impaired autophagy. These data demonstrate that genetic disorders of collagens, endoplasmic reticulum stress and autophagy regulation in megakaryocytes may be interrelated.Abbreviations: 7-AAD: 7-amino-actinomycin D; ATF: activating transcriptional factor; BAX: BCL2 associated X protein; BCL2: B cell leukemia/lymphoma 2; BCL2L1/Bcl-xL: BCL2-like 1; BM: bone marrow; COL6: collagen, type VI; col6a1-⁄-: mice that are null for Col6a1; DDIT3/CHOP/GADD153: DNA-damage inducible transcript 3; EGFP: enhanced green fluorescent protein; ER: endoplasmic reticulum; reticulophagy: endoplasmic reticulum-selective autophagy; HSPA5/Bip: heat shock protein 5; HSP90B1/GRP94: heat shock protein 90, beta (Grp94), member 1; LAMP2: lysosomal associated membrane protein 2; MAP1LC3B/LC3B: microtubule-associated protein 1 light chain 3 beta; Mk: megakaryocytes; MTOR: mechanistic target of rapamycin kinase; NIMV: noninvasive mechanical ventilation; PI3K: phosphoinositide 3-kinase; PPP1R15A/GADD34: protein phosphatase 1, regulatory subunit 15A; RT-qPCR: reverse transcription-quantitative real-time PCR; ROS: reactive oxygen species; SERPINH1/HSP47: serine (or cysteine) peptidase inhibitor, clade H, member 1; sh-RNA: short hairpin RNA; SOCE: store operated calcium entry; UCMD: Ullrich congenital muscular dystrophy; UPR: unfolded protein response; WIPI2: WD repeat domain, phosphoinositide-interacting 2; WT: wild type; XBP1: X-box binding protein 1.
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Affiliation(s)
- Vittorio Abbonante
- Department of Molecular Medicine, University of Pavia, Pavia, Italy.,Laboratory of Biochemistry-Biotechnology and Advanced Diagnostics, IRCCS San Matteo Foundation, Pavia, Italy.,Department of Health Sciences, Magna Graecia University of Catanzaro, Catanzaro, Italy
| | - Alessandro Malara
- Department of Molecular Medicine, University of Pavia, Pavia, Italy.,Laboratory of Biochemistry-Biotechnology and Advanced Diagnostics, IRCCS San Matteo Foundation, Pavia, Italy
| | - Martina Chrisam
- Department of Molecular Medicine, University of Padova, Padova, Italy
| | - Samuele Metti
- Department of Molecular Medicine, University of Padova, Padova, Italy
| | - Paolo Soprano
- Department of Molecular Medicine, University of Pavia, Pavia, Italy.,Laboratory of Biochemistry-Biotechnology and Advanced Diagnostics, IRCCS San Matteo Foundation, Pavia, Italy
| | | | - Luca Bello
- Department of Neurosciences, University of Padova, Padua, Italy
| | - Valeria Bozzi
- Department of Internal Medicine, IRCCS Policlinico San Matteo Foundation, University of Pavia, Pavia, Italy
| | - Monica Battiston
- Department of Translational Research, Stem Cell Unit, CRO Aviano National Cancer Institute, Aviano, Italy
| | - Alessandro Pecci
- Department of Internal Medicine, IRCCS Policlinico San Matteo Foundation, University of Pavia, Pavia, Italy
| | - Elena Pegoraro
- Department of Neurosciences, University of Padova, Padua, Italy
| | - Luigi De Marco
- Department of Translational Research, Stem Cell Unit, CRO Aviano National Cancer Institute, Aviano, Italy.,Department of Molecular and Experimental Medicine, SCRIPPS Research Institute, La Jolla, CA, USA
| | - Paola Braghetta
- Department of Molecular Medicine, University of Padova, Padova, Italy
| | - Paolo Bonaldo
- Department of Molecular Medicine, University of Padova, Padova, Italy
| | - Alessandra Balduini
- Department of Molecular Medicine, University of Pavia, Pavia, Italy.,Laboratory of Biochemistry-Biotechnology and Advanced Diagnostics, IRCCS San Matteo Foundation, Pavia, Italy.,Department of Biomedical Engineering, Tufts University, Medford, MA, USA
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Metabolic Pathways and Ion Channels Involved in Skeletal Muscle Atrophy: A Starting Point for Potential Therapeutic Strategies. Cells 2022; 11:cells11162566. [PMID: 36010642 PMCID: PMC9406740 DOI: 10.3390/cells11162566] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 08/08/2022] [Accepted: 08/16/2022] [Indexed: 12/19/2022] Open
Abstract
Skeletal muscle tissue has the important function of supporting and defending the organism. It is the largest apparatus in the human body, and its function is important for contraction and movements. In addition, it is involved in the regulation of protein synthesis and degradation. In fact, inhibition of protein synthesis and/or activation of catabolism determines a pathological condition called muscle atrophy. Muscle atrophy is a reduction in muscle mass resulting in a partial or complete loss of function. It has been established that many physiopathological conditions can cause a reduction in muscle mass. Nevertheless, it is not well known that the molecular mechanisms and signaling processes caused this dramatic event. There are multiple concomitant processes involved in muscle atrophy. In fact, the gene transcription of some factors, oxidative stress mechanisms, and the alteration of ion transport through specific ion channels may contribute to muscle function impairment. In this review, we focused on the molecular mechanisms responsible for muscle damage and potential drugs to be used to alleviate this disabling condition.
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Smith SJ, Fabian L, Sheikh A, Noche R, Cui X, Moore SA, Dowling JJ. Lysosomes and the pathogenesis of merosin-deficient congenital muscular dystrophy. Hum Mol Genet 2022; 31:733-747. [PMID: 34568901 PMCID: PMC9989739 DOI: 10.1093/hmg/ddab278] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 09/01/2021] [Accepted: 09/14/2021] [Indexed: 11/14/2022] Open
Abstract
Congenital muscular dystrophy type 1A (MDC1A), the most common congenital muscular dystrophy in Western countries, is caused by recessive mutations in LAMA2, the gene encoding laminin alpha 2. Currently, no cure or disease modifying therapy has been successfully developed for MDC1A. Examination of patient muscle biopsies revealed altered distribution of lysosomes. We hypothesized that this redistribution was a novel and potentially druggable aspect of disease pathogenesis. We explored this hypothesis using candyfloss (caf), a zebrafish model of MDC1A. We found that lysosome distribution in caf zebrafish was also abnormal. This altered localization was significantly associated with fiber detachment and could be prevented by blocking myofiber detachment. Overexpression of transcription factor EB, a transcription factor that promotes lysosomal biogenesis, led to increased lysosome content and decreased fiber detachment. We conclude that genetic manipulation of the lysosomal compartment is able to alter the caf zebrafish disease process, suggesting that lysosome function may be a target for disease modification.
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Affiliation(s)
- Sarah J Smith
- Department of Molecular Genetics, University of Toronto, Toronto, ON M5S 1A8, Canada
- Program for Genetics & Genome Biology, Hospital for Sick Children, Toronto, ON M5G 0A4, Canada
- Department of Family Medicine, University of Calgary, Calgary T2R 0X7, Alberta
| | - Lacramioara Fabian
- Program for Genetics & Genome Biology, Hospital for Sick Children, Toronto, ON M5G 0A4, Canada
| | - Adeel Sheikh
- Program for Genetics & Genome Biology, Hospital for Sick Children, Toronto, ON M5G 0A4, Canada
- Schulich School of Medicine and Dentistry, Western University, London, ON N6A 5C1, Canada
| | - Ramil Noche
- Program for Genetics & Genome Biology, Hospital for Sick Children, Toronto, ON M5G 0A4, Canada
- Zebrafish Genetics and Disease Models Core Facility, Hospital for Sick Children, Toronto, ON M5G 0A4, Canada
| | - Xiucheng Cui
- Zebrafish Genetics and Disease Models Core Facility, Hospital for Sick Children, Toronto, ON M5G 0A4, Canada
| | - Steven A Moore
- Department of Pathology, University of Iowa Medical Center, Iowa City, IA, USA
| | - James J Dowling
- Department of Molecular Genetics, University of Toronto, Toronto, ON M5S 1A8, Canada
- Program for Genetics & Genome Biology, Hospital for Sick Children, Toronto, ON M5G 0A4, Canada
- Division of Neurology, Hospital for Sick Children, Toronto, ON M5G 1X8, Canada
- Department of Paediatrics, University of Toronto, Toronto, ON M5G 1X8, Canada
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10
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Harada A, Goto M, Kato A, Takenaka-Ninagawa N, Tanaka A, Noguchi S, Ikeya M, Sakurai H. Systemic Supplementation of Collagen VI by Neonatal Transplantation of iPSC-Derived MSCs Improves Histological Phenotype and Function of Col6-Deficient Model Mice. Front Cell Dev Biol 2021; 9:790341. [PMID: 34888314 PMCID: PMC8649773 DOI: 10.3389/fcell.2021.790341] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Accepted: 10/25/2021] [Indexed: 11/25/2022] Open
Abstract
Collagen VI is distributed in the interstitium and is secreted mainly by mesenchymal stromal cells (MSCs) in skeletal muscle. Mutations in COL6A1-3 genes cause a spectrum of COL6-related myopathies. In this study, we performed a systemic transplantation study of human-induced pluripotent stem cell (iPSC)-derived MSCs (iMSCs) into neonatal immunodeficient COL6-related myopathy model (Col6a1KO/NSG) mice to validate the therapeutic potential. Engraftment of the donor cells and the resulting rescued collagen VI were observed at the quadriceps and diaphragm after intraperitoneal iMSC transplantation. Transplanted mice showed improvement in pathophysiological characteristics compared with untreated Col6a1KO/NSG mice. In detail, higher muscle regeneration in the transplanted mice resulted in increased muscle weight and enlarged myofibers. Eight-week-old mice showed increased muscle force and performed better in the grip and rotarod tests. Overall, these findings support the concept that systemic iMSC transplantation can be a therapeutic option for COL6-related myopathies.
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Affiliation(s)
- Aya Harada
- Department of Clinical Application, Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto, Japan
| | - Megumi Goto
- Department of Clinical Application, Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto, Japan
| | - Atsuya Kato
- Department of Clinical Application, Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto, Japan
| | - Nana Takenaka-Ninagawa
- Department of Clinical Application, Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto, Japan
| | - Akito Tanaka
- Department of Clinical Application, Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto, Japan
| | - Satoru Noguchi
- Department of Neuromuscular Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Makoto Ikeya
- Department of Clinical Application, Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto, Japan
| | - Hidetoshi Sakurai
- Department of Clinical Application, Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto, Japan
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11
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Ablation of Collagen VI leads to the release of platelets with altered function. Blood Adv 2021; 5:5150-5163. [PMID: 34547769 PMCID: PMC9153009 DOI: 10.1182/bloodadvances.2020002671] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Accepted: 07/12/2021] [Indexed: 11/20/2022] Open
Abstract
Megakaryocytes express collagen VI that regulates the release of functional platelets. Collagen VI–null megakaryocytes and platelets display increased mTOR signaling and store-operated calcium entry.
Hemostatic abnormalities and impaired platelet function have been described in patients affected by connective tissue disorders. We observed a moderate bleeding tendency in patients affected by collagen VI–related disorders and investigated the defects in platelet functionality, whose mechanisms are unknown. We demonstrated that megakaryocytes express collagen VI that is involved in the regulation of functional platelet production. By exploiting a collagen VI–null mouse model (Col6a1−/−), we found that collagen VI–null platelets display significantly increased susceptibility to activation and intracellular calcium signaling. Col6a1−/− megakaryocytes and platelets showed increased expression of stromal interaction molecule 1 (STIM1) and ORAI1, the components of store-operated calcium entry (SOCE), and activation of the mammalian target of rapamycin (mTOR) signaling pathway. In vivo mTOR inhibition by rapamycin reduced STIM1 and ORAI1 expression and calcium flows, resulting in a normalization of platelet susceptibility to activation. These defects were cell autonomous, because transplantation of lineage-negative bone marrow cells from Col6a1−/− mice into lethally irradiated wild-type animals showed the same alteration in SOCE and platelet activation seen in Col6a1−/− mice. Peripheral blood platelets of patients affected by collagen VI–related diseases, Bethlem myopathy and Ullrich congenital muscular dystrophy, displayed increased expression of STIM1 and ORAI1 and were more prone to activation. Altogether, these data demonstrate the importance of collagen VI in the production of functional platelets by megakaryocytes in mouse models and in collagen VI–related diseases.
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12
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Nirody JA, Budin I, Rangamani P. ATP synthase: Evolution, energetics, and membrane interactions. J Gen Physiol 2021; 152:152111. [PMID: 32966553 PMCID: PMC7594442 DOI: 10.1085/jgp.201912475] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Accepted: 08/24/2020] [Indexed: 12/24/2022] Open
Abstract
The synthesis of ATP, life’s “universal energy currency,” is the most prevalent chemical reaction in biological systems and is responsible for fueling nearly all cellular processes, from nerve impulse propagation to DNA synthesis. ATP synthases, the family of enzymes that carry out this endless task, are nearly as ubiquitous as the energy-laden molecule they are responsible for making. The F-type ATP synthase (F-ATPase) is found in every domain of life and has facilitated the survival of organisms in a wide range of habitats, ranging from the deep-sea thermal vents to the human intestine. Accordingly, there has been a large amount of work dedicated toward understanding the structural and functional details of ATP synthases in a wide range of species. Less attention, however, has been paid toward integrating these advances in ATP synthase molecular biology within the context of its evolutionary history. In this review, we present an overview of several structural and functional features of the F-type ATPases that vary across taxa and are purported to be adaptive or otherwise evolutionarily significant: ion channel selectivity, rotor ring size and stoichiometry, ATPase dimeric structure and localization in the mitochondrial inner membrane, and interactions with membrane lipids. We emphasize the importance of studying these features within the context of the enzyme’s particular lipid environment. Just as the interactions between an organism and its physical environment shape its evolutionary trajectory, ATPases are impacted by the membranes within which they reside. We argue that a comprehensive understanding of the structure, function, and evolution of membrane proteins—including ATP synthase—requires such an integrative approach.
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Affiliation(s)
- Jasmine A Nirody
- Center for Studies in Physics and Biology, The Rockefeller University, New York, NY.,All Souls College, University of Oxford, Oxford, UK
| | - Itay Budin
- Department of Chemistry and Biochemistry, University of California San Diego, La Jolla, CA
| | - Padmini Rangamani
- Department of Mechanical and Aerospace Engineering, University of California San Diego, La Jolla, CA
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13
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Mereness JA, Mariani TJ. The critical role of collagen VI in lung development and chronic lung disease. Matrix Biol Plus 2021; 10:100058. [PMID: 34195595 PMCID: PMC8233475 DOI: 10.1016/j.mbplus.2021.100058] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 01/07/2021] [Accepted: 01/08/2021] [Indexed: 01/20/2023] Open
Abstract
Type VI collagen (collagen VI) is an obligate extracellular matrix component found mainly in the basement membrane region of many mammalian tissues and organs, including skeletal muscle and throughout the respiratory system. Collagen VI is probably most recognized in medicine as the genetic cause of a spectrum of muscular dystrophies, including Ullrich Congenital Myopathy and Bethlem Myopathy. Collagen VI is thought to contribute to myopathy, at least in part, by mediating muscle fiber integrity by anchoring myoblasts to the muscle basement membrane. Interestingly, collagen VI myopathies present with restrictive respiratory insufficiency, thought to be due primarily to thoracic muscular weakening. Although it was recently recognized as one of the (if not the) most abundant collagens in the mammalian lung, there is a substantive knowledge gap concerning its role in respiratory system development and function. A few studies have suggested that collagen VI insufficiency is associated with airway epithelial cell survival and altered lung function. Our recent work suggested collagen VI may be a genomic risk factor for chronic lung disease in premature infants. Using this as motivation, we thoroughly assessed the role of collagen VI in lung development and in lung epithelial cell biology. Here, we describe the state-of-the-art for collagen VI cell and developmental biology within the respiratory system, and reveal its essential roles in normal developmental processes and airway epithelial cell phenotype and intracellular signaling.
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Affiliation(s)
- Jared A. Mereness
- Division of Neonatology and Pediatric Molecular and Personalized Medicine Program, Department of Pediatrics, University of Rochester, Rochester, NY, USA
- Department of Biomedical Genetics, University of Rochester, Rochester, NY, USA
| | - Thomas J. Mariani
- Corresponding author. Division of Neonatology and Pediatric Molecular and Personalized Medicine Program, University of Rochester Medical Center, 601 Elmwood Ave, Box 850, Rochester, NY 14642, USA.
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14
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Wang PP, Ding SY, Sun YY, Li YH, Fu WN. MYCT1 Inhibits the Adhesion and Migration of Laryngeal Cancer Cells Potentially Through Repressing Collagen VI. Front Oncol 2021; 10:564733. [PMID: 33680912 PMCID: PMC7931689 DOI: 10.3389/fonc.2020.564733] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Accepted: 12/30/2020] [Indexed: 12/24/2022] Open
Abstract
MYCT1, a target of c-Myc, inhibits laryngeal cancer cell migration, but the underlying mechanism remains unclear. In the study, we detected differentially expressed genes (DEGs) from laryngeal cancer cells transfected by MYCT1 using RNA-seq (GSE123275). DEGs from head and neck squamous cell carcinoma (HNSCC) were first screened by comparison of transcription data from the Gene Expression Omnibus (GSE6631) and the Cancer Genome Atlas (TCGA) datasets using weighted gene co-expression network analysis (WGCNA). GO and KEGG pathway analysis explained the functions of the DEGs. The DEGs overlapped between GSE6631and TCGA datasets were then compared with ours to find the key DEGs downstream of MYCT1 related to the adhesion and migration of laryngeal cancer cells. qRT-PCR and Western blot were applied to validate gene expression at mRNA and protein levels, respectively. Finally, the cell adhesion, migration, and wound healing assays were to check cell adhesion and migration abilities, respectively. As results, 39 overlapping genes were enriched in the GSE6631 and TCGA datasets, and most of them revealed adhesion function. Thirteen of 39 genes including COL6 members COL6A1, COL6A2, and COL6A3 were overlapped in GSE6631, TCGA, and GSE123275 datasets. Similar to our RNA-seq results, we confirmed that COL6 is a target of MYCT1 in laryngeal cancer cells. We also found that MYCT1 inhibited the adhesion and migration of laryngeal cancer cells via COL6. These indicate that COL6 is a potential target of MYCT1 and participates the adhesion and migration of laryngeal cancer cells, which provides an important clue for further study on how MYCT1 regulating COL6 in laryngeal cancer progression.
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Affiliation(s)
- Peng-Peng Wang
- Department of Medical Genetics, China Medical University, Shenyang, China
| | - Si-Yu Ding
- Department of Medical Genetics, China Medical University, Shenyang, China
| | - Yuan-Yuan Sun
- Department of Medical Genetics, China Medical University, Shenyang, China
| | - Yun-Hui Li
- Department of Laboratory Medicine, General Hospital of Northern Theater Command, Shenyang, China
| | - Wei-Neng Fu
- Department of Medical Genetics, China Medical University, Shenyang, China
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15
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Guo HL, Chen G, Song ZL, Sun J, Gao XH, Han YX. COL6A3 promotes cellular malignancy of osteosarcoma by activating the PI3K/AKT pathway. ACTA ACUST UNITED AC 2020; 66:740-745. [PMID: 32696868 DOI: 10.1590/1806-9282.66.6.740] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Accepted: 12/29/2019] [Indexed: 11/22/2022]
Abstract
OBJECTIVE In this study, we aimed to investigate the role of COL6A3 on cell motility and the PI3K/AKT signaling pathway in osteosarcoma. METHODS The relative expression of COL6A3 was achieved from a GEO dataset in osteosarcoma tissue. siRNA technology was applied to decrease the COL6A3 expression in cells, and cell counting kit-8 (CCK-8) assay and colony formation analysis were used to examine the cell proliferation potential. Knockdown COL6A3 made the proliferation and colony formation abilities worse than the COL6A3 without interference. Likewise, in contrast to the si-con group, cell invasion and migration were inhibited in the si-COL6A3 group. Moreover, the western blot results suggested that the PI3K/AKT signaling pathway was manipulated by measuring the protein expression of the PI3K/AKT pathway-related markers, due to the COL6A3 inhibition. CONCLUSION COL6A3 plays a crucial role in modulating various aspects of the progression of osteosarcoma, which would provide a potentially effective treatment for osteosarcoma.
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Affiliation(s)
- Hong-Li Guo
- Department of Nursing, Binzhou Vocational College, Binzhou, Shandong, China
| | - Gang Chen
- Department of Orthopedics, Binzhou People's Hospital, Binzhou, Shandong, China
| | - Ze-Long Song
- Department of Orthopedics, Binzhou People's Hospital, Binzhou, Shandong, China
| | - Jia Sun
- Department of Nursing, Binzhou Vocational College, Binzhou, Shandong, China
| | - Xi-Hai Gao
- Department of Nursing, Binzhou Vocational College, Binzhou, Shandong, China
| | - Yu-Xia Han
- Department of Nursing, Binzhou Vocational College, Binzhou, Shandong, China
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16
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Wang J, Pan W. The Biological Role of the Collagen Alpha-3 (VI) Chain and Its Cleaved C5 Domain Fragment Endotrophin in Cancer. Onco Targets Ther 2020; 13:5779-5793. [PMID: 32606789 PMCID: PMC7319802 DOI: 10.2147/ott.s256654] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Accepted: 05/26/2020] [Indexed: 12/13/2022] Open
Abstract
The collagen alpha-3 (VI) chain encoded by the gene COL6A3 is one of the 3 subunits of collagen VI which is a microfibrillar component of the extracellular matrix and is essential for the stable assembly process of collagen VI. The collagen alpha-3 (VI) chain and the cleaved C5 domain fragment, called endotrophin, are highly expressed in a variety of cancers and play a crucial role in cancer progression. The biological functions of endotrophin in tumors can be driven by adipocytes. Studies have demonstrated that endotrophin can directly affect the malignancy of cancer cells through TGF-β-dependent mechanisms, inducing epithelial–mesenchymal transition and fibrosis of the tumor microenvironment. In addition, endotrophin can also recruit macrophages and endothelial cells through chemotaxis to regulate the tumor microenvironment and ultimately promote tumor inflammation and angiogenesis. Furthermore, COL6A3 and endotrophin serve as novel diagnostic and prognostic biomarkers in cancer and contribute to clinical therapeutic applications in the future. In summary, in this review, we discuss the importance of the collagen alpha-3 (VI) chain and endotrophin in cancer progression, the future clinical applications of endotrophin and the remaining challenges in this field.
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Affiliation(s)
- Jingya Wang
- Department of Gastroenterology, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, People's Republic of China
| | - Wensheng Pan
- Department of Gastroenterology, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, People's Republic of China
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17
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Al-wajeeh AS, Salhimi SM, Al-Mansoub MA, Khalid IA, Harvey TM, Latiff A, Ismail MN. Comparative proteomic analysis of different stages of breast cancer tissues using ultra high performance liquid chromatography tandem mass spectrometer. PLoS One 2020; 15:e0227404. [PMID: 31945087 PMCID: PMC6964830 DOI: 10.1371/journal.pone.0227404] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Accepted: 12/18/2019] [Indexed: 01/03/2023] Open
Abstract
BACKGROUND Breast cancer is the fifth most prevalent cause of death among women worldwide. It is also one of the most common types of cancer among Malaysian women. This study aimed to characterize and differentiate the proteomics profiles of different stages of breast cancer and its matched adjacent normal tissues in Malaysian breast cancer patients. Also, this study aimed to construct a pertinent protein pathway involved in each stage of cancer. METHODS In total, 80 samples of tumor and matched adjacent normal tissues were collected from breast cancer patients at Seberang Jaya Hospital (SJH) and Kepala Batas Hospital (KBH), both in Penang, Malaysia. The protein expression profiles of breast cancer and normal tissues were mapped by sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE). The Gel-Eluted Liquid Fractionation Entrapment Electrophoresis (GELFREE) Technology System was used for the separation and fractionation of extracted proteins, which also were analyzed to maximize protein detection. The protein fractions were then analyzed by tandem mass spectrometry (LC-MS/MS) analysis using LC/MS LTQ-Orbitrap Fusion and Elite. This study identified the proteins contained within the tissue samples using de novo sequencing and database matching via PEAKS software. We performed two different pathway analyses, DAVID and STRING, in the sets of proteins from stage 2 and stage 3 breast cancer samples. The lists of molecules were generated by the REACTOME-FI plugin, part of the CYTOSCAPE tool, and linker nodes were added in order to generate a connected network. Then, pathway enrichment was obtained, and a graphical model was created to depict the participation of the input proteins as well as the linker nodes. RESULTS This study identified 12 proteins that were detected in stage 2 tumor tissues, and 17 proteins that were detected in stage 3 tumor tissues, related to their normal counterparts. It also identified some proteins that were present in stage 2 but not stage 3 and vice versa. Based on these results, this study clarified unique proteins pathways involved in carcinogenesis within stage 2 and stage 3 breast cancers. CONCLUSIONS This study provided some useful insights about the proteins associated with breast cancer carcinogenesis and could establish an important foundation for future cancer-related discoveries using differential proteomics profiling. Beyond protein identification, this study considered the interaction, function, network, signaling pathway, and protein pathway involved in each profile. These results suggest that knowledge of protein expression, especially in stage 2 and stage 3 breast cancer, can provide important clues that may enable the discovery of novel biomarkers in carcinogenesis.
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Affiliation(s)
- Abdullah Saleh Al-wajeeh
- Anti-Doping Lab Qatar, Doha, Qatar
- Analytical Biochemistry Research Centre (ABrC), Universiti Sains Malaysia, USM, Penang, Malaysia
| | | | | | | | | | | | - Mohd Nazri Ismail
- Analytical Biochemistry Research Centre (ABrC), Universiti Sains Malaysia, USM, Penang, Malaysia
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18
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Histone H2A-peptide-hybrided upconversion mesoporous silica nanoparticles for bortezomib/p53 delivery and apoptosis induction. Colloids Surf B Biointerfaces 2019; 186:110674. [PMID: 31855686 DOI: 10.1016/j.colsurfb.2019.110674] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Revised: 11/15/2019] [Accepted: 11/24/2019] [Indexed: 01/18/2023]
Abstract
The design and development of advanced gene/drug codelivery nanocarrier with good biocompatibility for cancer gene therapy is desirable. Herein, we reported a gene delivery nanoplatform to synergized bortezomib (BTZ) for cancer treatment with histone H2A-hybrided, upconversion luminescence (UCL)-guided mesoporous silica nanoparticles [UCNPs(BTZ)@mSiO2-H2A]. The functionalization of H2A on the surface of UCNPs(BTZ)@mSiO2 nanoparticles realized the improvement of biocompatibility and enhancement of gene encapsulation and transfection efficiency. More importantly, then UCNPs(BTZ)@mSiO2-H2A/p53 induced specific and efficient apoptotic cell death in p53-null cancer cells and restored the functional activity of tumor suppressor p53 by the success of co-delivery of BTZ/p53. Moreover, the transfection with UCNPs(BTZ)@mSiO2-H2A/p53 in p53-deficient non-small cell lung cancer cells changed the status of p53 and substantially enhanced the p53-mediated sensitivity of encapsulated BTZ inside the UCNPs(BTZ)@mSiO2/p53. Meanwhile, core-shell structured mesoporous silica nanoparticles UCNPs@mSiO2 as an UCL agent can detect the real-time interaction of nanoparticles with cells and uptake/penetration processes. The results here suggested that the as-developed UCNPs(BTZ)@mSiO2-H2A/p53 nanoplatform with coordinating biocompatibility, UCL image, and sustained release manner might be desirable gene/drug codelivery nanocarrier for clinical cancer therapy.
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19
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Bugiardini E, Khan AM, Phadke R, Lynch DS, Cortese A, Feng L, Gang Q, Pittman AM, Morrow JM, Turner C, Carr AS, Quinlivan R, Rossor AM, Holton JL, Parton M, Blake JC, Reilly MM, Houlden H, Matthews E, Hanna MG. Genetic and phenotypic characterisation of inherited myopathies in a tertiary neuromuscular centre. Neuromuscul Disord 2019; 29:747-757. [DOI: 10.1016/j.nmd.2019.08.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Revised: 06/12/2019] [Accepted: 08/09/2019] [Indexed: 02/06/2023]
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20
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Aberrant Expression of Collagen Gene Family in the Brain Regions of Male Mice with Behavioral Psychopathologies Induced by Chronic Agonistic Interactions. BIOMED RESEARCH INTERNATIONAL 2019; 2019:7276389. [PMID: 31183373 PMCID: PMC6512038 DOI: 10.1155/2019/7276389] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/13/2018] [Revised: 03/04/2019] [Accepted: 03/27/2019] [Indexed: 11/17/2022]
Abstract
Chronic agonistic interactions promote the development of experimental psychopathologies in animals: a depression-like state in chronically defeated mice and the pathology of aggressive behavior in the mice with repeated wins. The abundant research data indicate that such psychopathological states are associated with significant molecular and cellular changes in the brain. This paper aims to study the influence of a 20-day period of agonistic interactions on the expression patterns of collagen family genes encoding the proteins which are basic components of extracellular matrix (ECM) in different brain regions of mice using the RNA-Seq database. Most of differentially expressed collagen genes were shown to be upregulated in the hypothalamus and striatum of chronically aggressive and defeated mice and in the hippocampus of defeated mice, whereas downregulation of collagen genes was demonstrated in the ventral tegmental areas in both experimental groups. Aberrant expression of collagen genes induced by chronic agonistic interactions may be indicative of specific ECM defects in the brain regions of mice with alternative social experience. This is the first study demonstrating remodeling of ECM under the development of experimental disorders.
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21
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Fan Y, Liu A, Wei C, Yang H, Chang X, Wang S, Yuan Y, Bonnemann C, Wu Q, Wu X, Xiong H. Genetic and clinical findings in a Chinese cohort of patients with collagen VI-related myopathies. Clin Genet 2018; 93:1159-1171. [PMID: 29419890 DOI: 10.1111/cge.13230] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2017] [Revised: 01/29/2018] [Accepted: 02/05/2018] [Indexed: 12/13/2022]
Abstract
Collagen VI-related myopathy, caused by pathogenic variants in the genes encoding collagen VI, represents a clinical continuum from Ullrich congenital muscular dystrophy (UCMD) to Bethlem myopathy (BM). Clinical data of 60 probands and their family members were collected and muscle biopsies of 26 patients were analyzed. COL6A1, COL6A2 and COL6A3 exons were analyzed by direct sequencing or next generation sequencing (NGS). Sixty patients were characterized by delayed motor milestones, muscle weakness, skin and joint changes with 40 UCMD and 20 BM. Muscle with biopsies revealed dystrophic changes and showed completely deficiency of collagen VI or sarcolemma specific collagen VI deficiency. We identified 62 different pathogenic variants in these 60 patients, with 34 were first reported while 28 were previously known; 72 allelic pathogenic variants in COL6A1 (25/72, 34.7%), COL6A2 (33/72, 45.8%) and COL6A3 (14/72, 19.4%). We also found somatic mosaic variant in the parent of 1 proband by personal genome machine amplicon deep sequencing for mosaicism. Here we provide clinical, histological and genetic evidence of collagen VI-related myopathy in 60 Chinese patients. NGS is a valuable approach for diagnosis and accurate diagnosis provides useful information for genetic counseling of related families.
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Affiliation(s)
- Y Fan
- Department of Pediatrics, Peking University First Hospital, Beijing, China
| | - A Liu
- Department of Pediatrics, Peking University First Hospital, Beijing, China
| | - C Wei
- Department of Pediatrics, Peking University First Hospital, Beijing, China
| | - H Yang
- Department of Pediatrics, Peking University First Hospital, Beijing, China
| | - X Chang
- Department of Pediatrics, Peking University First Hospital, Beijing, China
| | - S Wang
- Department of Pediatrics, Peking University First Hospital, Beijing, China
| | - Y Yuan
- Department of Neurology, Peking University First Hospital, Beijing, China
| | - C Bonnemann
- Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke/NIH, Bethesda, Maryland
| | - Q Wu
- Human Genetics Resources Core Facility, School of Life Sciences, Peking University, Beijing, China
| | - X Wu
- Department of Pediatrics, Peking University First Hospital, Beijing, China
| | - H Xiong
- Department of Pediatrics, Peking University First Hospital, Beijing, China
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22
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Llacua LA, Hoek A, de Haan BJ, de Vos P. Collagen type VI interaction improves human islet survival in immunoisolating microcapsules for treatment of diabetes. Islets 2018; 10:60-68. [PMID: 29521546 PMCID: PMC5895175 DOI: 10.1080/19382014.2017.1420449] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2017] [Revised: 12/11/2017] [Accepted: 12/14/2017] [Indexed: 01/12/2023] Open
Abstract
Collagens are the most abundant fibrous protein in the human body and constitute the main structural element of the extracellular matrix. It provides mechanical and physiological support for cells. In the pancreas, collagen VI content is more than double that of collagen I or IV. It is a major component of the islet-exocrine interface and could be involved in islet-cell survival. To test the impact of collagen VI on human encapsulated pancreatic islets-cells, we tested the effects of exogenous collagen type VI on in vitro functional survival of alginate encapsulated human islet-cells. Concentrations tested ranged from 0.1 to 50 µg/ml. Islets in capsules without collagen type VI served as control. Islet-cell interaction with collagen type VI at concentrations of 0.1 and 10 µg/ml, promoted islet-cell viability (p<0.05). Although no improvement in glucose induced insulin secretion (GSIS) was observed, islets in capsules without incorporation of collagen type VI showed more dysfunction and oxygen consumption rates was improved by inclusion of collagen type VI. Our results demonstrate that incorporation of collagen type VI in immunoisolated human islets supports in vitro viability and survival of human pancreatic islets.
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Affiliation(s)
- L. Alberto Llacua
- Section of Immunoendocrinology, Department of Pathology and Medical Biology, University of Groningen, Groningen, The Netherlands
| | - Arjan Hoek
- Section of Immunoendocrinology, Department of Pathology and Medical Biology, University of Groningen, Groningen, The Netherlands
| | - Bart J. de Haan
- Section of Immunoendocrinology, Department of Pathology and Medical Biology, University of Groningen, Groningen, The Netherlands
| | - Paul de Vos
- Section of Immunoendocrinology, Department of Pathology and Medical Biology, University of Groningen, Groningen, The Netherlands
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23
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Cervelli M, Leonetti A, Duranti G, Sabatini S, Ceci R, Mariottini P. Skeletal Muscle Pathophysiology: The Emerging Role of Spermine Oxidase and Spermidine. Med Sci (Basel) 2018; 6:medsci6010014. [PMID: 29443878 PMCID: PMC5872171 DOI: 10.3390/medsci6010014] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Revised: 02/07/2018] [Accepted: 02/09/2018] [Indexed: 12/25/2022] Open
Abstract
Skeletal muscle comprises approximately 40% of the total body mass. Preserving muscle health and function is essential for the entire body in order to counteract chronic diseases such as type II diabetes, cardiovascular diseases, and cancer. Prolonged physical inactivity, particularly among the elderly, causes muscle atrophy, a pathological state with adverse outcomes such as poor quality of life, physical disability, and high mortality. In murine skeletal muscle C2C12 cells, increased expression of the spermine oxidase (SMOX) enzyme has been found during cell differentiation. Notably, SMOX overexpression increases muscle fiber size, while SMOX reduction was enough to induce muscle atrophy in multiple murine models. Of note, the SMOX reaction product spermidine appears to be involved in skeletal muscle atrophy/hypertrophy. It is effective in reactivating autophagy, ameliorating the myopathic defects of collagen VI-null mice. Moreover, spermidine treatment, if combined with exercise, can affect D-gal-induced aging-related skeletal muscle atrophy. This review hypothesizes a role for SMOX during skeletal muscle differentiation and outlines its role and that of spermidine in muscle atrophy. The identification of new molecular pathways involved in the maintenance of skeletal muscle health could be beneficial in developing novel therapeutic lead compounds to treat muscle atrophy.
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Affiliation(s)
- Manuela Cervelli
- Department of Science, Università degli Studi di Roma "Roma Tre", 00146 Rome, Italy.
| | - Alessia Leonetti
- Department of Science, Università degli Studi di Roma "Roma Tre", 00146 Rome, Italy.
| | - Guglielmo Duranti
- Department of of Movement Human and Health Sciences, Unit of Biology, Genetics and Biochemistry, Università degli Studi di Roma "Foro Italico", Piazza Lauro De Bosis 15, 00135 Rome, Italy.
| | - Stefania Sabatini
- Department of of Movement Human and Health Sciences, Unit of Biology, Genetics and Biochemistry, Università degli Studi di Roma "Foro Italico", Piazza Lauro De Bosis 15, 00135 Rome, Italy.
| | - Roberta Ceci
- Department of of Movement Human and Health Sciences, Unit of Biology, Genetics and Biochemistry, Università degli Studi di Roma "Foro Italico", Piazza Lauro De Bosis 15, 00135 Rome, Italy.
| | - Paolo Mariottini
- Department of Science, Università degli Studi di Roma "Roma Tre", 00146 Rome, Italy.
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24
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Cescon M, Chen P, Castagnaro S, Gregorio I, Bonaldo P. Lack of collagen VI promotes neurodegeneration by impairing autophagy and inducing apoptosis during aging. Aging (Albany NY) 2017; 8:1083-101. [PMID: 27060109 PMCID: PMC4931855 DOI: 10.18632/aging.100924] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Accepted: 02/15/2016] [Indexed: 12/19/2022]
Abstract
Collagen VI is an extracellular matrix (ECM) protein with a broad distribution in different tissues and mostly deposited at the close periphery of the cell surface. Previous studies revealed that collagen VI protects neurons from the toxicity of amyloid-βpeptides and from UV-induced damage. However, the physiological role of this protein in the central nervous system (CNS) remains unknown. Here, we established primary neural cultures from murine cortex and hippocampus, and carried out in vitro and in vivo studies in wild-type and collagen VI null (Col6a1−/−) mice. Col6a1−/− neural cultures displayed an increased incidence of spontaneous apoptosis and higher vulnerability to oxidative stress, accompanied by altered regulation of autophagy with increased p62 protein levels and decreased LC3 lipidation. Analysis of brain sections confirmed increased apoptosis and abnormal regulation of autophagy in the CNS of collagen VI-deficient animals. To investigate the in vivo physiological consequences of these CNS defects, we carried out functional studies and found that motor and memory task performances were impaired in aged Col6a1−/− mice. These findings indicate that lack of collagen VI leads to spontaneous apoptosis and defective autophagy in neural cells, and point at a protective role for this ECM protein in the CNS during physiological aging.
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Affiliation(s)
- Matilde Cescon
- Department of Molecular Medicine, University of Padova, I-35131 Padova, Italy
| | - Peiwen Chen
- Department of Molecular Medicine, University of Padova, I-35131 Padova, Italy
| | - Silvia Castagnaro
- Department of Molecular Medicine, University of Padova, I-35131 Padova, Italy
| | - Ilaria Gregorio
- Department of Molecular Medicine, University of Padova, I-35131 Padova, Italy
| | - Paolo Bonaldo
- Department of Molecular Medicine, University of Padova, I-35131 Padova, Italy
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25
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Capitanio D, Moriggi M, De Palma S, Bizzotto D, Molon S, Torretta E, Fania C, Bonaldo P, Gelfi C, Braghetta P. Collagen VI Null Mice as a Model for Early Onset Muscle Decline in Aging. Front Mol Neurosci 2017; 10:337. [PMID: 29114203 PMCID: PMC5660719 DOI: 10.3389/fnmol.2017.00337] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Accepted: 10/04/2017] [Indexed: 12/31/2022] Open
Abstract
Collagen VI is an extracellular matrix (ECM) protein playing a key role in skeletal muscles and whose deficiency leads to connective tissue diseases in humans and in animal models. However, most studies have been focused on skeletal muscle features. We performed an extensive proteomic profiling in two skeletal muscles (diaphragm and gastrocnemius) of wild-type and collagen VI null (Col6a1−/−) mice at different ages, from 6- (adult) to 12- (aged) month-old to 24 (old) month-old. While in wild-type animals the number of proteins and the level of modification occurring during aging were comparable in the two analyzed muscles, Col6a1−/− mice displayed a number of muscle-type specific variations. In particular, gastrocnemius displayed a limited number of dysregulated proteins in adult mice, while in aged muscles the modifications were more pronounced in terms of number and level. In diaphragm, the differences displayed by 6-month-old Col6a1−/− mice were more pronounced compared to wild-type mice and persisted at 12 months of age. In adult Col6a1−/− mice, the major variations were found in the enzymes belonging to the glycolytic pathway and the tricarboxylic acid (TCA) cycle, as well as in autophagy-related proteins. When compared to wild-type animals Col6a1−/− mice displayed a general metabolic rewiring which was particularly prominent the diaphragm at 6 months of age. Comparison of the proteomic features and the molecular analysis of metabolic and autophagic pathways in adult and aged Col6a1−/− diaphragm indicated that the effects of aging, culminating in lipotoxicity and autophagic impairment, were already present at 6 months of age. Conversely, the effects of aging in Col6a1−/− gastrocnemius were similar but delayed becoming apparent at 12 months of age. A similar metabolic rewiring and autophagic impairment was found in the diaphragm of 24-month-old wild-type mice, confirming that fatty acid synthase (FASN) increment and decreased microtubule-associated proteins 1A/1B light chain 3B (LC3B) lipidation are hallmarks of the aging process. Altogether these data indicate that the diaphragm of Col6a1−/− animal model can be considered as a model of early skeletal muscle aging.
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Affiliation(s)
- Daniele Capitanio
- Department of Biomedical Sciences for Health, University of Milano, Milan, Italy
| | - Manuela Moriggi
- Department of Biomedical Sciences for Health, University of Milano, Milan, Italy
| | | | - Dario Bizzotto
- Department of Molecular Medicine, University of Padova, Padova, Italy
| | - Sibilla Molon
- Department of Molecular Medicine, University of Padova, Padova, Italy
| | - Enrica Torretta
- Department of Biomedical Sciences for Health, University of Milano, Milan, Italy
| | - Chiara Fania
- UO Proteomica Clinica, IRCCS Policlinico S. Donato, Milan, Italy
| | - Paolo Bonaldo
- Department of Molecular Medicine, University of Padova, Padova, Italy
| | - Cecilia Gelfi
- Department of Biomedical Sciences for Health, University of Milano, Milan, Italy.,UO Proteomica Clinica, IRCCS Policlinico S. Donato, Milan, Italy
| | - Paola Braghetta
- Department of Molecular Medicine, University of Padova, Padova, Italy
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26
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Saleh Al-w A, Nazri Isma M, Muhamad Sa S, Abdul Khal I, Ayesh Moha S, Alsayrafi M, Michael Ha T, Binti A. L A. Identification of Glycobiomarker Candidates for Breast Cancer Using LTQ-Orbitrap Fusion Technique. INT J PHARMACOL 2017. [DOI: 10.3923/ijp.2017.425.437] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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27
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Mitochondrial Calcium Uptake in Activation of the Permeability Transition Pore and Cell Death. MOLECULAR BASIS FOR MITOCHONDRIAL SIGNALING 2017. [DOI: 10.1007/978-3-319-55539-3_4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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28
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Chrisam M, Pirozzi M, Castagnaro S, Blaauw B, Polishchuck R, Cecconi F, Grumati P, Bonaldo P. Reactivation of autophagy by spermidine ameliorates the myopathic defects of collagen VI-null mice. Autophagy 2016; 11:2142-52. [PMID: 26565691 PMCID: PMC4835186 DOI: 10.1080/15548627.2015.1108508] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Autophagy is a self-degradative process responsible for the clearance of damaged or unnecessary cellular components. We have previously found that persistence of dysfunctional organelles due to autophagy failure is a key event in the pathogenesis of COL6/collagen VI-related myopathies, and have demonstrated that reactivation of a proper autophagic flux rescues the muscle defects of Col6a1-null (col6a1−/−) mice. Here we show that treatment with spermidine, a naturally occurring nontoxic autophagy inducer, is beneficial for col6a1−/− mice. Systemic administration of spermidine in col6a1−/− mice reactivated autophagy in a dose-dependent manner, leading to a concurrent amelioration of the histological and ultrastructural muscle defects. The beneficial effects of spermidine, together with its being easy to administer and the lack of overt side effects, open the field for the design of novel nutraceutical strategies for the treatment of muscle diseases characterized by autophagy impairment.
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Affiliation(s)
- Martina Chrisam
- a Department of Molecular Medicine ; University of Padova ; Padova , Italy
| | - Marinella Pirozzi
- b Telethon Institute of Genetic and Medicine (TIGEM) ; Napoli , Italy
| | - Silvia Castagnaro
- a Department of Molecular Medicine ; University of Padova ; Padova , Italy
| | - Bert Blaauw
- c Venetian Institute of Molecular Medicine (VIMM) ; Padova , Italy
| | - Roman Polishchuck
- b Telethon Institute of Genetic and Medicine (TIGEM) ; Napoli , Italy
| | - Francesco Cecconi
- d IRCCS Fondazione Santa Lucia ; Rome , Italy.,e Department of Biology ; University of Rome Tor Vergata ; Rome , Italy.,f Danish Cancer Society Research Center ; Copenhagen , Denmark
| | - Paolo Grumati
- a Department of Molecular Medicine ; University of Padova ; Padova , Italy.,g Institute of Biochemistry II ; Goethe University ; Frankfurt am Main , Germany
| | - Paolo Bonaldo
- a Department of Molecular Medicine ; University of Padova ; Padova , Italy
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29
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Biasutto L, Azzolini M, Szabò I, Zoratti M. The mitochondrial permeability transition pore in AD 2016: An update. BIOCHIMICA ET BIOPHYSICA ACTA 2016; 1863:2515-30. [PMID: 26902508 DOI: 10.1016/j.bbamcr.2016.02.012] [Citation(s) in RCA: 93] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2015] [Revised: 02/04/2016] [Accepted: 02/05/2016] [Indexed: 12/13/2022]
Abstract
Over the past 30years the mitochondrial permeability transition - the permeabilization of the inner mitochondrial membrane due to the opening of a wide pore - has progressed from being considered a curious artifact induced in isolated mitochondria by Ca(2+) and phosphate to a key cell-death-inducing process in several major pathologies. Its relevance is by now universally acknowledged and a pharmacology targeting the phenomenon is being developed. The molecular nature of the pore remains to this day uncertain, but progress has recently been made with the identification of the FOF1 ATP synthase as the probable proteic substrate. Researchers sharing this conviction are however divided into two camps: these believing that only the ATP synthase dimers or oligomers can form the pore, presumably in the contact region between monomers, and those who consider that the ring-forming c subunits in the FO sector actually constitute the walls of the pore. The latest development is the emergence of a new candidate: Spastic Paraplegia 7 (SPG7), a mitochondrial AAA-type membrane protease which forms a 6-stave barrel. This review summarizes recent developments of research on the pathophysiological relevance and on the molecular nature of the mitochondrial permeability transition pore. This article is part of a Special Issue entitled: Mitochondrial Channels edited by Pierre Sonveaux, Pierre Maechler and Jean-Claude Martinou.
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Affiliation(s)
- Lucia Biasutto
- CNR Neuroscience Institute, Viale G. Colombo 3, 35121 Padova, Italy; University of Padova, Department of Biomedical Sciences, Viale G. Colombo 3, 35121 Padova, Italy
| | - Michele Azzolini
- CNR Neuroscience Institute, Viale G. Colombo 3, 35121 Padova, Italy; University of Padova, Department of Biomedical Sciences, Viale G. Colombo 3, 35121 Padova, Italy
| | - Ildikò Szabò
- CNR Neuroscience Institute, Viale G. Colombo 3, 35121 Padova, Italy; University of Padova, Department of Biology, Viale G. Colombo 3, 35121 Padova, Italy
| | - Mario Zoratti
- CNR Neuroscience Institute, Viale G. Colombo 3, 35121 Padova, Italy; University of Padova, Department of Biomedical Sciences, Viale G. Colombo 3, 35121 Padova, Italy.
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30
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Scotton C, Bovolenta M, Schwartz E, Falzarano MS, Martoni E, Passarelli C, Armaroli A, Osman H, Rodolico C, Messina S, Pegoraro E, D'Amico A, Bertini E, Gualandi F, Neri M, Selvatici R, Boffi P, Maioli MA, Lochmüller H, Straub V, Bushby K, Castrignanò T, Pesole G, Sabatelli P, Merlini L, Braghetta P, Bonaldo P, Bernardi P, Foley R, Cirak S, Zaharieva I, Muntoni F, Capitanio D, Gelfi C, Kotelnikova E, Yuryev A, Lebowitz M, Zhang X, Hodge BA, Esser KA, Ferlini A. Deep RNA profiling identified CLOCK and molecular clock genes as pathophysiological signatures in collagen VI myopathy. J Cell Sci 2016; 129:1671-84. [PMID: 26945058 PMCID: PMC4852766 DOI: 10.1242/jcs.175927] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Accepted: 02/16/2016] [Indexed: 01/09/2023] Open
Abstract
Collagen VI myopathies are genetic disorders caused by mutations in collagen 6 A1, A2 and A3 genes, ranging from the severe Ullrich congenital muscular dystrophy to the milder Bethlem myopathy, which is recapitulated by collagen-VI-null (Col6a1(-/-)) mice. Abnormalities in mitochondria and autophagic pathway have been proposed as pathogenic causes of collagen VI myopathies, but the link between collagen VI defects and these metabolic circuits remains unknown. To unravel the expression profiling perturbation in muscles with collagen VI myopathies, we performed a deep RNA profiling in both Col6a1(-/-)mice and patients with collagen VI pathology. The interactome map identified common pathways suggesting a previously undetected connection between circadian genes and collagen VI pathology. Intriguingly, Bmal1(-/-)(also known as Arntl) mice, a well-characterized model displaying arrhythmic circadian rhythms, showed profound deregulation of the collagen VI pathway and of autophagy-related genes. The involvement of circadian rhythms in collagen VI myopathies is new and links autophagy and mitochondrial abnormalities. It also opens new avenues for therapies of hereditary myopathies to modulate the molecular clock or potential gene-environment interactions that might modify muscle damage pathogenesis.
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Affiliation(s)
- Chiara Scotton
- Medical Genetics Unit, Department of Medical Sciences, University of Ferrara, Ferrara 44121, Italy
| | - Matteo Bovolenta
- Medical Genetics Unit, Department of Medical Sciences, University of Ferrara, Ferrara 44121, Italy
| | - Elena Schwartz
- Ariadne Diagnostics, LLC, 9430 Key West Avenue, Suite 115, Rockville, MD 20850, USA
| | - Maria Sofia Falzarano
- Medical Genetics Unit, Department of Medical Sciences, University of Ferrara, Ferrara 44121, Italy
| | - Elena Martoni
- Medical Genetics Unit, Department of Medical Sciences, University of Ferrara, Ferrara 44121, Italy
| | - Chiara Passarelli
- Medical Genetics Unit, Department of Medical Sciences, University of Ferrara, Ferrara 44121, Italy Bambino Gesu' Children's Research Hospital, IRCCS, Rome 00146, Italy
| | - Annarita Armaroli
- Medical Genetics Unit, Department of Medical Sciences, University of Ferrara, Ferrara 44121, Italy
| | - Hana Osman
- Medical Genetics Unit, Department of Medical Sciences, University of Ferrara, Ferrara 44121, Italy
| | - Carmelo Rodolico
- Department of Neuroscience, University of Messina and Centro Clinico Nemo Sud, Messina 98125, Italy
| | - Sonia Messina
- Department of Neuroscience, University of Messina and Centro Clinico Nemo Sud, Messina 98125, Italy
| | - Elena Pegoraro
- Department of Neurosciences, University of Padova, Padova 35128, Italy
| | - Adele D'Amico
- Bambino Gesu' Children's Research Hospital, IRCCS, Rome 00146, Italy
| | - Enrico Bertini
- Bambino Gesu' Children's Research Hospital, IRCCS, Rome 00146, Italy
| | - Francesca Gualandi
- Medical Genetics Unit, Department of Medical Sciences, University of Ferrara, Ferrara 44121, Italy
| | - Marcella Neri
- Medical Genetics Unit, Department of Medical Sciences, University of Ferrara, Ferrara 44121, Italy
| | - Rita Selvatici
- Medical Genetics Unit, Department of Medical Sciences, University of Ferrara, Ferrara 44121, Italy
| | - Patrizia Boffi
- Department of Neurology, Regina Margherita Children's Hospital Turin, Torino 10126, Italy
| | - Maria Antonietta Maioli
- Department of Public Health, Clinical and Molecular Medicine, University of Cagliari, Cagliari 09124, Italy
| | - Hanns Lochmüller
- Jon Walton Muscular Dystrophy Research Centre, Institute of Genetic Medicine, Newcastle University, Newcastle NE1 7RU, UK
| | - Volker Straub
- Jon Walton Muscular Dystrophy Research Centre, Institute of Genetic Medicine, Newcastle University, Newcastle NE1 7RU, UK
| | - Katherine Bushby
- Jon Walton Muscular Dystrophy Research Centre, Institute of Genetic Medicine, Newcastle University, Newcastle NE1 7RU, UK
| | - Tiziana Castrignanò
- SCAI SuperComputing Applications and Innovation Department, Cineca, 00185 Rome, Italy
| | - Graziano Pesole
- Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari, Bari 70121, Italy
| | - Patrizia Sabatelli
- Institute of Molecular Genetics, CNR-National Research Council of Italy, Bologna 40129, Italy
| | - Luciano Merlini
- SC Laboratory of Musculoskeletal Cell Biology, Rizzoli Orthopedic Institute, Bologna 40136, Italy
| | - Paola Braghetta
- Department of Molecular Medicine, University of Padova, Padova 35128, Italy
| | - Paolo Bonaldo
- Department of Molecular Medicine, University of Padova, Padova 35128, Italy
| | - Paolo Bernardi
- Department of Biomedical Science, University of Padova, Padova 35128, Italy
| | - Reghan Foley
- Dubowitz Neuromuscular Centre, University College London, Institute of Child Health, London WC1E 6BT, UK
| | - Sebahattin Cirak
- Dubowitz Neuromuscular Centre, University College London, Institute of Child Health, London WC1E 6BT, UK
| | - Irina Zaharieva
- Dubowitz Neuromuscular Centre, University College London, Institute of Child Health, London WC1E 6BT, UK
| | - Francesco Muntoni
- Dubowitz Neuromuscular Centre, University College London, Institute of Child Health, London WC1E 6BT, UK
| | - Daniele Capitanio
- University of Milan, Department of Biomedical Science for Health, Milan 20090, Italy
| | - Cecilia Gelfi
- University of Milan, Department of Biomedical Science for Health, Milan 20090, Italy
| | | | - Anton Yuryev
- Ariadne Genomics, LLC, 9430 Key West Avenue, Suite 113, Rockville, MD 20850, USA
| | - Michael Lebowitz
- Ariadne Diagnostics, LLC, 9430 Key West Avenue, Suite 115, Rockville, MD 20850, USA
| | - Xiping Zhang
- Myology Institute, University of Florida, Gainesville, FL 32610, USA
| | - Brian A Hodge
- Myology Institute, University of Florida, Gainesville, FL 32610, USA
| | - Karyn A Esser
- Myology Institute, University of Florida, Gainesville, FL 32610, USA
| | - Alessandra Ferlini
- Medical Genetics Unit, Department of Medical Sciences, University of Ferrara, Ferrara 44121, Italy Dubowitz Neuromuscular Centre, University College London, Institute of Child Health, London WC1E 6BT, UK
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31
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Izu Y, Ezura Y, Koch M, Birk DE, Noda M. Collagens VI and XII form complexes mediating osteoblast interactions during osteogenesis. Cell Tissue Res 2016; 364:623-635. [PMID: 26753503 PMCID: PMC4875952 DOI: 10.1007/s00441-015-2345-y] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2015] [Accepted: 12/10/2015] [Indexed: 12/17/2022]
Abstract
Bone formation is precisely regulated by cell-cell communication in osteoblasts. We have previously demonstrated that genetic deletion of Col6a1 or Col12a1 impairs osteoblast connections and/or communication in mice, resulting in bone mass reduction and bone fragility. Mutations of the genes encoding collagen VI cause Ullrich congenital muscular dystrophy (UCMD) and Bethlem myopathy (BM), which have overlapping phenotypes involving connective tissue and muscle. Recent studies have identified COL12A1 gene mutations in patients with UCMD- and BM-like disorders harboring no COL6 mutations, indicating the shared functions of these collagens in connective tissue homeostasis. The purpose of this investigation has been to test the hypothesis that collagens VI and XII have coordinate regulatory role(s) during bone formation. We analyzed the localization of collagens VI and XII relative to primary osteoblasts during osteogenesis. Immunofluorescence analysis demonstrated that collagens VI and XII colocalized in matrix bridges between adjacent cells during periods when osteoblasts were establishing cell-cell connections. Quantification of cells harboring collagen bridges demonstrated that matrix bridges were composed of collagens VI and XII but not collagen I. Interestingly, matrix bridge formation was impaired in osteoblasts deficient in either Col6a1 or Col12a1, suggesting that both collagens were indispensable for matrix bridge formation. These data demonstrate, for the first time, a functional relationship between collagens VI and XII during osteogenesis and indicate that a complex containing collagens VI and XII is essential for the formation of a communicating cellular network during bone formation.
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Affiliation(s)
- Yayoi Izu
- Department of Molecular Pharmacology, Medical Research Institute, Tokyo Medical and Dental University, M&D Tower 24th, 5-45 1-Chome Yushima, Bunkyo-ku, Tokyo, 113-8549, Japan.
| | - Yoichi Ezura
- Department of Molecular Pharmacology, Medical Research Institute, Tokyo Medical and Dental University, M&D Tower 24th, 5-45 1-Chome Yushima, Bunkyo-ku, Tokyo, 113-8549, Japan
| | - Manuel Koch
- Institute for Dental Research and Musculoskeletal Biology, Center for Biochemistry, University of Cologne, Cologne, Germany
| | - David E Birk
- Department of Molecular Pharmacology & Physiology, University of South Florida, Morsani College of Medicine, Tampa, Florida, USA
| | - Masaki Noda
- Department of Molecular Pharmacology, Medical Research Institute, Tokyo Medical and Dental University, M&D Tower 24th, 5-45 1-Chome Yushima, Bunkyo-ku, Tokyo, 113-8549, Japan
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32
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Radev Z, Hermel JM, Elipot Y, Bretaud S, Arnould S, Duchateau P, Ruggiero F, Joly JS, Sohm F. A TALEN-Exon Skipping Design for a Bethlem Myopathy Model in Zebrafish. PLoS One 2015. [PMID: 26221953 PMCID: PMC4519248 DOI: 10.1371/journal.pone.0133986] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Presently, human collagen VI-related diseases such as Ullrich congenital muscular dystrophy (UCMD) and Bethlem myopathy (BM) remain incurable, emphasizing the need to unravel their etiology and improve their treatments. In UCMD, symptom onset occurs early, and both diseases aggravate with ageing. In zebrafish fry, morpholinos reproduced early UCMD and BM symptoms but did not allow to study the late phenotype. Here, we produced the first zebrafish line with the human mutation frequently found in collagen VI-related disorders such as UCMD and BM. We used a transcription activator-like effector nuclease (TALEN) to design the col6a1ama605003-line with a mutation within an essential splice donor site, in intron 14 of the col6a1 gene, which provoke an in-frame skipping of exon 14 in the processed mRNA. This mutation at a splice donor site is the first example of a template-independent modification of splicing induced in zebrafish using a targetable nuclease. This technique is readily expandable to other organisms and can be instrumental in other disease studies. Histological and ultrastructural analyzes of homozygous and heterozygous mutant fry and 3 months post-fertilization (mpf) fish revealed co-dominantly inherited abnormal myofibers with disorganized myofibrils, enlarged sarcoplasmic reticulum, altered mitochondria and misaligned sarcomeres. Locomotion analyzes showed hypoxia-response behavior in 9 mpf col6a1 mutant unseen in 3 mpf fish. These symptoms worsened with ageing as described in patients with collagen VI deficiency. Thus, the col6a1ama605003-line is the first adult zebrafish model of collagen VI-related diseases; it will be instrumental both for basic research and drug discovery assays focusing on this type of disorders.
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Affiliation(s)
- Zlatko Radev
- UMS 1374, AMAGEN, INRA, Jouy en Josas, Domaine de Vilvert, France
- UMS 3504, AMAGEN, CNRS, Gif-sur-Yvette, France
| | - Jean-Michel Hermel
- UMR 9197, INRA-CASBAH team, NEURO-Psi, CNRS, Gif sur Yvette, France
- * E-mail: (FS); (JMH)
| | - Yannick Elipot
- UMR 9197, DECA team, NEURO-Psi, CNRS, Gif sur Yvette, France
| | - Sandrine Bretaud
- UMR 5242, Institut de Génomique Fonctionnelle de Lyon, ENS de Lyon, CNRS, Université Lyon 1, Lyon, France
| | | | | | - Florence Ruggiero
- UMR 5242, Institut de Génomique Fonctionnelle de Lyon, ENS de Lyon, CNRS, Université Lyon 1, Lyon, France
| | | | - Frédéric Sohm
- UMS 1374, AMAGEN, INRA, Jouy en Josas, Domaine de Vilvert, France
- UMS 3504, AMAGEN, CNRS, Gif-sur-Yvette, France
- * E-mail: (FS); (JMH)
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Liu F, Lou J, Zhao D, Li W, Zhao Y, Sun X, Yan C. Dysferlinopathy: mitochondrial abnormalities in human skeletal muscle. Int J Neurosci 2015; 126:499-509. [PMID: 26000923 DOI: 10.3109/00207454.2015.1034801] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
PURPOSE Mitochondrial defects have been associated with a series of muscular diseases. Dysferlinopathy, however, has been rarely reported with mitochondrial dysfunction. Here we report a cohort of dysferlinopathy patients with mitochondrial abnormalities found in muscle. METHODS Clinical data and muscle pathologies of nine cases with dysferlinopathy were retrospectively studied. mtDNA copy number, protein levels and activities of mitochondrial enzyme complexes were assayed. RESULTS Nine patients were diagnosed as having dysferlinopathy by DYSF sequencing and quantification of dysferlin levels in muscle homogenates. Muscle biopsies exhibited dystrophic changes (n = 9), ragged-red fibers (n = 9) and cytochrome c oxidase-deficient fibers (n = 9). mtDNA copy number increased significantly in 56% (15/27) of fibers with mitochondrial histology. Protein levels of complex IV subunits II (n = 5), complex III subunit core 2 (n = 2) and complex I NDUFB1 (n = 1) decreased. Impaired activities of complexes I, III and IV were observed in 56%, 33% and 78% of subjects and the activities were reduced by 21%, 18% and 40%, respectively. Besides, loss activities of complexes I/IV and decreased ATP level were also found in fibroblasts from dysferlinopathy. CONCLUSION Prominent mitochondrial abnormalities are common pathological findings in muscle from dysferlinopathy. Our data indicated that mitochondria may play a significant role in the progression of dysferlinopathy and also highlighted the potential of mitochondrial protective drugs in rescuing the symptoms of dysferlinopathy.
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Affiliation(s)
- Fuchen Liu
- a Department of Neurology , Qilu Hospital of Shandong University , Jinan , China.,b Department of Neurobiology, Kavli Institute for Neuroscience , Yale University School of Medicine , New Haven , CT , USA
| | - Jianwei Lou
- a Department of Neurology , Qilu Hospital of Shandong University , Jinan , China
| | - Dandan Zhao
- a Department of Neurology , Qilu Hospital of Shandong University , Jinan , China
| | - Wei Li
- a Department of Neurology , Qilu Hospital of Shandong University , Jinan , China
| | - Yuying Zhao
- a Department of Neurology , Qilu Hospital of Shandong University , Jinan , China
| | - Xiulian Sun
- c Otolaryngology Lab, Qilu Hospital of Shandong University , Jinan , China
| | - Chuanzhu Yan
- a Department of Neurology , Qilu Hospital of Shandong University , Jinan , China.,d Key Laboratory for Experimental Teratology of the Ministry of Education , School of Medicine, Shandong University , Jinan , China.,e Brain Science Research Institute , Shandong University , Jinan , China
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Yonekawa T, Nishino I. Ullrich congenital muscular dystrophy: clinicopathological features, natural history and pathomechanism(s). J Neurol Neurosurg Psychiatry 2015; 86:280-7. [PMID: 24938411 DOI: 10.1136/jnnp-2013-307052] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Collagen VI is widely distributed throughout extracellular matrices (ECMs) in various tissues. In skeletal muscle, collagen VI is particularly concentrated in and adjacent to basement membranes of myofibers. Ullrich congenital muscular dystrophy (UCMD) is caused by mutations in either COL6A1, COL6A2 or COL6A3 gene, thereby leading to collagen VI deficiency in the ECM. It is known to occur through either recessive or dominant genetic mechanism, the latter most typically by de novo mutations. UCMD is well defined by the clinicopathological hallmarks including distal hyperlaxity, proximal joint contractures, protruding calcanei, scoliosis and respiratory insufficiency. Recent reports have depicted the robust natural history of UCMD; that is, loss of ambulation by early teenage years, rapid decline in respiratory function by 10 years of age and early-onset, rapidly progressive scoliosis. Muscle pathology is characterised by prominent interstitial fibrosis disproportionate to the relative paucity of necrotic and regenerating fibres. To date, treatment for patients is supportive for symptoms such as joint contractures, respiratory failure and scoliosis. There have been clinical trials based on the theory of mitochondrion-mediated myofiber apoptosis or impaired autophagy. Furthermore, the fact that collagen VI producing cells in skeletal muscle are interstitial mesenchymal cells can support proof of concept for stem cell-based therapy.
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Affiliation(s)
- Takahiro Yonekawa
- Department of Neuromuscular Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry (NCNP), Kodaira, Tokyo, Japan Department of Child Neurology, National Center Hospital, NCNP, Kodaira, Tokyo, Japan
| | - Ichizo Nishino
- Department of Neuromuscular Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry (NCNP), Kodaira, Tokyo, Japan Department of Clinical Development, Translational Medical Center, NCNP
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Cescon M, Gattazzo F, Chen P, Bonaldo P. Collagen VI at a glance. J Cell Sci 2015; 128:3525-31. [DOI: 10.1242/jcs.169748] [Citation(s) in RCA: 175] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2015] [Accepted: 08/10/2015] [Indexed: 12/17/2022] Open
Abstract
Collagen VI represents a remarkable extracellular matrix molecule, and in the past few years, studies of this molecule have revealed its involvement in a wide range of tissues and pathological conditions. In addition to its complex multi-step pathway of biosynthesis and assembly that leads to the formation of a characteristic and distinctive network of beaded microfilaments in the extracellular matrix, collagen VI exerts several key roles in different tissues. These range from unique biomechanical roles to cytoprotective functions in different cells, including myofibers, chondrocytes, neurons, fibroblasts and cardiomyocytes. Indeed, collagen VI has been shown to exert a surprisingly broad range of cytoprotective effects, which include counteracting apoptosis and oxidative damage, favoring tumor growth and progression, regulating autophagy and cell differentiation, and even contributing to the maintenance of stemness. In this Cell Science at a Glance article and the accompanying poster, we present the current knowledge of collagen VI, and in particular, discuss its relevance in stemness and in preserving the mechanical properties of tissues, as well as its links with human disorders.
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Affiliation(s)
- Matilde Cescon
- Department of Molecular Medicine, University of Padova, Padova 35131, Italy
| | - Francesca Gattazzo
- Department of Molecular Medicine, University of Padova, Padova 35131, Italy
| | - Peiwen Chen
- Department of Molecular Medicine, University of Padova, Padova 35131, Italy
| | - Paolo Bonaldo
- Department of Molecular Medicine, University of Padova, Padova 35131, Italy
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Toni S, Morandi R, Busacchi M, Tardini L, Merlini L, Battistini NC, Pellegrini M. Nutritional status evaluation in patients affected by bethlem myopathy and ullrich congenital muscular dystrophy. Front Aging Neurosci 2014; 6:315. [PMID: 25477818 PMCID: PMC4235079 DOI: 10.3389/fnagi.2014.00315] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2014] [Accepted: 10/26/2014] [Indexed: 01/26/2023] Open
Abstract
Collagen VI mutations lead to disabling myopathies like Bethlem myopathy (BM) and Ullrich congenital muscular dystrophy (UCMD). We have investigated the nutritional and metabolic status of one UCMD and seven BM patients (five female, three male, mean age 31 ± 9 years) in order to find a potential metabolic target for nutritional intervention. For this study, we used standard anthropometric tools, such as BMI evaluation and body circumference measurements. All results were compared to dual-energy X-ray absorptiometry (DXA), considered the “gold standard” method. Energy intake of each patient was evaluated through longitudinal methods (7-day food diary) while resting energy expenditure (REE) was predicted using specific equations and measured by indirect calorimetry. Clinical evaluation included general and nutritional blood and urine laboratory analyses and quantitative muscle strength measurement by hand-held dynamometry. BM and UCMD patients showed an altered body composition, characterized by low free fat mass (FFM) and high fat mass (FM), allowing us to classify them as sarcopenic, and all but one as sarcopenic-obese. Another main result was the negative correlation between REE/FFM ratio (basal energy expenditure per kilograms of fat-free mass) and the severity of the disease, as defined by the muscle megascore (correlation coefficient −0.955, P-value <0.001). We postulate that the increase of the REE/FFM ratio in relation to the severity of the disease may be due to an altered and pathophysiological loss of energetic efficiency at the expense of skeletal muscle. We show that a specific metabolic disequilibrium is related to the severity of the disease, which may represent a target for a nutritional intervention in these patients.
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Affiliation(s)
- Silvia Toni
- Laboratory of Nutrition and Lifestyle, Department of Diagnostic, Clinical and Public Health Medicine , Modena , Italy
| | - Riccardo Morandi
- Laboratory of Nutrition and Lifestyle, Department of Diagnostic, Clinical and Public Health Medicine , Modena , Italy
| | - Marcello Busacchi
- Laboratory of Nutrition and Lifestyle, Department of Diagnostic, Clinical and Public Health Medicine , Modena , Italy
| | - Lucia Tardini
- Laboratory of Nutrition and Lifestyle, Department of Diagnostic, Clinical and Public Health Medicine , Modena , Italy
| | - Luciano Merlini
- Laboratory of Musculoskeletal Cell Biology, Istituto Ortopedico Rizzoli , Bologna , Italy
| | - Nino Carlo Battistini
- Laboratory of Nutrition and Lifestyle, Department of Diagnostic, Clinical and Public Health Medicine , Modena , Italy
| | - Massimo Pellegrini
- Laboratory of Nutrition and Lifestyle, Department of Diagnostic, Clinical and Public Health Medicine , Modena , Italy
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Chen P, Cescon M, Bonaldo P. The Role of Collagens in Peripheral Nerve Myelination and Function. Mol Neurobiol 2014; 52:216-25. [PMID: 25143238 DOI: 10.1007/s12035-014-8862-y] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2014] [Accepted: 08/11/2014] [Indexed: 02/07/2023]
Abstract
In the peripheral nervous system, myelin is formed by Schwann cells, which are surrounded by a basal lamina. Extracellular matrix (ECM) molecules in the basal lamina play an important role in regulating Schwann cell functions, including adhesion, survival, spreading, and myelination, as well as in supporting neurite outgrowth. Collagens are a major component of ECM molecules, which include 28 types that differ in structure and function. A growing body of evidence suggests that collagens are key components of peripheral nerves, where they not only provide a structural support but also affect cell behavior by triggering intracellular signals. In this review, we will summarize the main properties of collagen family, discuss the role of extensively studied collagen types (collagens IV, V, VI, and XV) in Schwann cell function and myelination, and provide a detailed overview of the recent advances with respect to these collagens in peripheral nerve function.
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Affiliation(s)
- Peiwen Chen
- Department of Molecular Medicine, University of Padova, Via Ugo Bassi 58/B, 35131, Padova, Italy,
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Cannavino J, Brocca L, Sandri M, Bottinelli R, Pellegrino MA. PGC1-α over-expression prevents metabolic alterations and soleus muscle atrophy in hindlimb unloaded mice. J Physiol 2014; 592:4575-89. [PMID: 25128574 DOI: 10.1113/jphysiol.2014.275545] [Citation(s) in RCA: 166] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Prolonged skeletal muscle inactivity causes muscle fibre atrophy. Redox imbalance has been considered one of the major triggers of skeletal muscle disuse atrophy, but whether redox imbalance is actually the major cause or simply a consequence of muscle disuse remains of debate. Here we hypothesized that a metabolic stress mediated by PGC-1α down-regulation plays a major role in disuse atrophy. First we studied the adaptations of soleus to mice hindlimb unloading (HU) in the early phase of disuse (3 and 7 days of HU) with and without antioxidant treatment (trolox). HU caused a reduction in cross-sectional area, redox status alteration (NRF2, SOD1 and catalase up-regulation), and induction of the ubiquitin proteasome system (MuRF-1 and atrogin-1 mRNA up-regulation) and autophagy (Beclin1 and p62 mRNA up-regulation). Trolox completely prevented the induction of NRF2, SOD1 and catalase mRNAs, but not atrophy or induction of catabolic systems in unloaded muscles, suggesting that oxidative stress is not a major cause of disuse atrophy. HU mice showed a marked alteration of oxidative metabolism. PGC-1α and mitochondrial complexes were down-regulated and DRP1 was up-regulated. To define the link between mitochondrial dysfunction and disuse muscle atrophy we unloaded mice overexpressing PGC-1α. Transgenic PGC-1α animals did not show metabolic alteration during unloading, preserving muscle size through the reduction of autophagy and proteasome degradation. Our results indicate that mitochondrial dysfunction plays a major role in disuse atrophy and that compounds inducing PGC-1α expression could be useful to treat/prevent muscle atrophy.
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Affiliation(s)
- Jessica Cannavino
- Department of Molecular Medicine, University of Pavia, 27100, Pavia, Italy
| | - Lorenza Brocca
- Department of Molecular Medicine, University of Pavia, 27100, Pavia, Italy
| | - Marco Sandri
- Venetian Institute of Molecular Medicine and Dulbecco Telethon Institute, 35129, Padova, Italy Interuniversity Institute of Myology, University of Pavia, Pavia, Italy
| | - Roberto Bottinelli
- Department of Molecular Medicine, University of Pavia, 27100, Pavia, Italy Fondazione Salvatore Maugeri (IRCCS), Scientific Institute of Pavia, Pavia, Italy Interdipartimental Centre for Biology and Sport Medicine, University of Pavia, Pavia, Italy
| | - Maria Antonietta Pellegrino
- Department of Molecular Medicine, University of Pavia, 27100, Pavia, Italy Interuniversity Institute of Myology, University of Pavia, Pavia, Italy Interdipartimental Centre for Biology and Sport Medicine, University of Pavia, Pavia, Italy
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Abstract
The field of mitochondrial ion channels has recently seen substantial progress, including the molecular identification of some of the channels. An integrative approach using genetics, electrophysiology, pharmacology, and cell biology to clarify the roles of these channels has thus become possible. It is by now clear that many of these channels are important for energy supply by the mitochondria and have a major impact on the fate of the entire cell as well. The purpose of this review is to provide an up-to-date overview of the electrophysiological properties, molecular identity, and pathophysiological functions of the mitochondrial ion channels studied so far and to highlight possible therapeutic perspectives based on current information.
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Zaharieva IT, Calissano M, Scoto M, Preston M, Cirak S, Feng L, Collins J, Kole R, Guglieri M, Straub V, Bushby K, Ferlini A, Morgan JE, Muntoni F. Dystromirs as serum biomarkers for monitoring the disease severity in Duchenne muscular Dystrophy. PLoS One 2013; 8:e80263. [PMID: 24282529 PMCID: PMC3840009 DOI: 10.1371/journal.pone.0080263] [Citation(s) in RCA: 122] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2013] [Accepted: 10/01/2013] [Indexed: 12/12/2022] Open
Abstract
Duchenne muscular Dystrophy (DMD) is an inherited disease caused by mutations in the dystrophin gene that disrupt the open reading frame, while in frame mutations result in Becker muscular dystrophy (BMD). Ullrich congenital muscular dystrophy (UCMD) is due to mutations affecting collagen VI genes. Specific muscle miRNAs (dystromirs) are potential non-invasive biomarkers for monitoring the outcome of therapeutic interventions and disease progression. We quantified miR-1, miR-133a,b, miR-206 and miR-31 in serum from patients with DMD, BMD, UCMD and healthy controls. MiR-1, miR-133a,b and miR-206 were upregulated in DMD, but unchanged in UCMD compared to controls. Milder DMD patients had higher levels of dystromirs than more severely affected patients. Patients with low forced vital capacity (FVC) values, indicating respiratory muscle weakness, had low levels of serum miR-1 and miR-133b. There was no significant difference in the level of the dystromirs in BMD compared to controls. We also assessed the effect of dystrophin restoration on the expression of the five dystromirs in serum of DMD patients treated systemically for 12 weeks with antisense oligomer eteplirsen that induces skipping of exon 51 in the dystrophin gene. The dystromirs were also analysed in muscle biopsies of DMD patients included in a single dose intramuscular eteplirsen clinical trial. Our analysis detected a trend towards normalization of these miRNA between the pre- and post-treatment samples of the systemic trial, which however failed to reach statistical significance. This could possibly be due to the small number of patients and the short duration of these clinical trials. Although longer term studies are needed to clarify the relationship between dystrophin restoration following therapeutic intervention and the level of circulating miRNAs, our results indicate that miR-1 and miR-133 can be considered as exploratory biomarkers for monitoring the progression of muscle weakness and indirectly the remaining muscle mass in DMD.
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Affiliation(s)
- Irina T. Zaharieva
- The Dubowitz Neuromuscular Centre, Institute of Child Health, University College London, London, United Kingdom
| | - Mattia Calissano
- The Dubowitz Neuromuscular Centre, Institute of Child Health, University College London, London, United Kingdom
| | - Mariacristina Scoto
- The Dubowitz Neuromuscular Centre, Institute of Child Health, University College London, London, United Kingdom
| | - Mark Preston
- Department of Pathogen Molecular Biology, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Sebahattin Cirak
- The Dubowitz Neuromuscular Centre, Institute of Child Health, University College London, London, United Kingdom
- Childrens National Medical Centre, Research Centre for Genetic Medicine, Washington DC, United States of America
| | - Lucy Feng
- The Dubowitz Neuromuscular Centre, Institute of Child Health, University College London, London, United Kingdom
| | - James Collins
- Department of Pediatric Neurology, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio, United States of America
| | - Ryszard Kole
- Sarepta Therapeutics, Cambridge, Massachusetts, United States of America
| | - Michela Guglieri
- Institute of Human Genetics, Newcastle University, Newcastle, United Kingdom
| | - Volker Straub
- Institute of Human Genetics, Newcastle University, Newcastle, United Kingdom
| | - Kate Bushby
- Institute of Human Genetics, Newcastle University, Newcastle, United Kingdom
| | | | - Jennifer E. Morgan
- The Dubowitz Neuromuscular Centre, Institute of Child Health, University College London, London, United Kingdom
| | - Francesco Muntoni
- The Dubowitz Neuromuscular Centre, Institute of Child Health, University College London, London, United Kingdom
- * E-mail:
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41
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Fontes-Oliveira CC, Busquets S, Fuster G, Ametller E, Figueras M, Olivan M, Toledo M, López-Soriano FJ, Qu X, Demuth J, Stevens P, Varbanov A, Wang F, Isfort RJ, Argilés JM. A differential pattern of gene expression in skeletal muscle of tumor-bearing rats reveals dysregulation of excitation-contraction coupling together with additional muscle alterations. Muscle Nerve 2013; 49:233-48. [DOI: 10.1002/mus.23893] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2012] [Revised: 04/19/2013] [Accepted: 04/24/2013] [Indexed: 12/31/2022]
Affiliation(s)
- Cibely Cristine Fontes-Oliveira
- Cancer Research Group, Departament de Bioquímica i Biologia Molecular, Facultat de Biologia; Universitat de Barcelona; Diagonal 643 Barcelona 08028 Spain
| | - Sílvia Busquets
- Cancer Research Group, Departament de Bioquímica i Biologia Molecular, Facultat de Biologia; Universitat de Barcelona; Diagonal 643 Barcelona 08028 Spain
- Institut de Biomedicina de la Universitat de Barcelona; Barcelona Spain
| | - Gemma Fuster
- Cancer Research Group, Departament de Bioquímica i Biologia Molecular, Facultat de Biologia; Universitat de Barcelona; Diagonal 643 Barcelona 08028 Spain
| | - Elisabet Ametller
- Cancer Research Group, Departament de Bioquímica i Biologia Molecular, Facultat de Biologia; Universitat de Barcelona; Diagonal 643 Barcelona 08028 Spain
| | - Maite Figueras
- Cancer Research Group, Departament de Bioquímica i Biologia Molecular, Facultat de Biologia; Universitat de Barcelona; Diagonal 643 Barcelona 08028 Spain
| | - Mireia Olivan
- Cancer Research Group, Departament de Bioquímica i Biologia Molecular, Facultat de Biologia; Universitat de Barcelona; Diagonal 643 Barcelona 08028 Spain
| | - Míriam Toledo
- Cancer Research Group, Departament de Bioquímica i Biologia Molecular, Facultat de Biologia; Universitat de Barcelona; Diagonal 643 Barcelona 08028 Spain
| | - Francisco J. López-Soriano
- Cancer Research Group, Departament de Bioquímica i Biologia Molecular, Facultat de Biologia; Universitat de Barcelona; Diagonal 643 Barcelona 08028 Spain
- Institut de Biomedicina de la Universitat de Barcelona; Barcelona Spain
| | - Xiaoyan Qu
- Procter & Gamble; Mason Business Center; 8700 Mason-Montgomery Road Mason Ohio 45040 USA
| | - Jeffrey Demuth
- Procter & Gamble; Mason Business Center; 8700 Mason-Montgomery Road Mason Ohio 45040 USA
| | - Paula Stevens
- Procter & Gamble; Mason Business Center; 8700 Mason-Montgomery Road Mason Ohio 45040 USA
| | - Alex Varbanov
- Procter & Gamble; Mason Business Center; 8700 Mason-Montgomery Road Mason Ohio 45040 USA
| | - Feng Wang
- Procter & Gamble; Mason Business Center; 8700 Mason-Montgomery Road Mason Ohio 45040 USA
| | - Robert J. Isfort
- Procter & Gamble; Mason Business Center; 8700 Mason-Montgomery Road Mason Ohio 45040 USA
| | - Josep M. Argilés
- Cancer Research Group, Departament de Bioquímica i Biologia Molecular, Facultat de Biologia; Universitat de Barcelona; Diagonal 643 Barcelona 08028 Spain
- Institut de Biomedicina de la Universitat de Barcelona; Barcelona Spain
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Reduced IGF signaling prevents muscle cell death in a Caenorhabditis elegans model of muscular dystrophy. Proc Natl Acad Sci U S A 2013; 110:19024-9. [PMID: 24191049 DOI: 10.1073/pnas.1308866110] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Duchenne muscular dystrophy, a fatal degenerative muscle disease, is caused by mutations in the dystrophin gene. Loss of dystrophin in the muscle cell membrane causes muscle fiber necrosis. Previously, loss-of-function mutations in dys-1, the Caenorhabditis elegans dystrophin ortholog, were shown to cause a contractile defect and mild fiber degeneration in striated body wall muscle. Here, we show that loss of dystrophin function in C. elegans results in a shorter lifespan and stochastic, age-dependent muscle-cell death. Reduction of dystrophin function also accelerated age-dependent protein aggregation in muscle cells, suggesting a defect in proteostasis. Both muscle cell death and protein aggregation showed wide variability among the muscle cells. These observations suggest that muscle cell death in dys-1 mutants is greatly influenced by cellular environments. Thus, the manipulation of the cellular environment may provide an opportunity to thwart the cell death initiated by the loss of dystrophin. We found that reduced insulin-like growth factor (IGF) signaling, which rejuvenates the cellular environment to protect cells from a variety of age-dependent pathologies, prevented muscle cell death in the dys-1 mutants in a daf-16-dependent manner. Our study suggests that manipulation of the IGF signaling pathways in muscle cells could be a potent intervention for muscular dystrophy.
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Gene expression profiling identifies molecular pathways associated with collagen VI deficiency and provides novel therapeutic targets. PLoS One 2013; 8:e77430. [PMID: 24223098 PMCID: PMC3819505 DOI: 10.1371/journal.pone.0077430] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2013] [Accepted: 09/02/2013] [Indexed: 12/25/2022] Open
Abstract
Ullrich congenital muscular dystrophy (UCMD), caused by collagen VI deficiency, is a common congenital muscular dystrophy. At present, the role of collagen VI in muscle and the mechanism of disease are not fully understood. To address this we have applied microarrays to analyse the transcriptome of UCMD muscle and compare it to healthy muscle and other muscular dystrophies. We identified 389 genes which are differentially regulated in UCMD relative to controls. In addition, there were 718 genes differentially expressed between UCMD and dystrophin deficient muscle. In contrast, only 29 genes were altered relative to other congenital muscular dystrophies. Changes in gene expression were confirmed by real-time PCR. The set of regulated genes was analysed by Gene Ontology, KEGG pathways and Ingenuity Pathway analysis to reveal the molecular functions and gene networks associated with collagen VI defects. The most significantly regulated pathways were those involved in muscle regeneration, extracellular matrix remodelling and inflammation. We characterised the immune response in UCMD biopsies as being mainly mediated via M2 macrophages and the complement pathway indicating that anti-inflammatory treatment may be beneficial to UCMD as for other dystrophies. We studied the immunolocalisation of ECM components and found that biglycan, a collagen VI interacting proteoglycan, was reduced in the basal lamina of UCMD patients. We propose that biglycan reduction is secondary to collagen VI loss and that it may be contributing towards UCMD pathophysiology. Consequently, strategies aimed at over-expressing biglycan and restore the link between the muscle cell surface and the extracellular matrix should be considered.
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Katsetos CD, Koutzaki S, Melvin JJ. Mitochondrial dysfunction in neuromuscular disorders. Semin Pediatr Neurol 2013; 20:202-15. [PMID: 24331362 DOI: 10.1016/j.spen.2013.10.010] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
This review deciphers aspects of mitochondrial (mt) dysfunction among nosologically, pathologically, and genetically diverse diseases of the skeletal muscle, lower motor neuron, and peripheral nerve, which fall outside the traditional realm of mt cytopathies. Special emphasis is given to well-characterized mt abnormalities in collagen VI myopathies (Ullrich congenital muscular dystrophy and Bethlem myopathy), megaconial congenital muscular dystrophy, limb-girdle muscular dystrophy type 2 (calpainopathy), centronuclear myopathies, core myopathies, inflammatory myopathies, spinal muscular atrophy, Charcot-Marie-Tooth neuropathy type 2, and drug-induced peripheral neuropathies. Among inflammatory myopathies, mt abnormalities are more prominent in inclusion body myositis and a subset of polymyositis with mt pathology, both of which are refractory to corticosteroid treatment. Awareness is raised about instances of phenotypic mimicry between cases harboring primary mtDNA depletion, in the context of mtDNA depletion syndrome, and established neuromuscular disorders such as spinal muscular atrophy. A substantial body of experimental work, derived from animal models, attests to a major role of mitochondria (mt) in the early process of muscle degeneration. Common mechanisms of mt-related cell injury include dysregulation of the mt permeability transition pore opening and defective autophagy. The therapeutic use of mt permeability transition pore modifiers holds promise in various neuromuscular disorders, including muscular dystrophies.
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Affiliation(s)
- Christos D Katsetos
- Department of Pediatrics, Drexel University College of Medicine, St. Christopher's Hospital for Children, Philadelphia, PA; Department of Pathology and Laboratory Medicine, Drexel University College of Medicine, Philadelphia, PA; Department of Neurology, Drexel University College of Medicine, Philadelphia, PA.
| | - Sirma Koutzaki
- Department of Pathology and Laboratory Medicine, Drexel University College of Medicine, Philadelphia, PA
| | - Joseph J Melvin
- Department of Pediatrics, Drexel University College of Medicine, St. Christopher's Hospital for Children, Philadelphia, PA; Department of Neurology, Drexel University College of Medicine, Philadelphia, PA
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Aravamudan B, Thompson MA, Pabelick CM, Prakash YS. Mitochondria in lung diseases. Expert Rev Respir Med 2013; 7:631-46. [PMID: 23978003 DOI: 10.1586/17476348.2013.834252] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Mitochondria are autonomous cellular organelles that oversee a variety of functions such as metabolism, energy production, calcium buffering and cell fate determination. Regulation of their morphology and diverse activities beyond energy production are being recognized as playing major roles in cellular health and dysfunction. This review is aimed at summarizing what is known regarding mitochondrial contributions to pathogenesis of lung diseases. Emphasis is given to understanding the importance of structural and functional aspects of mitochondria in both normal cellular function (based on knowledge from other cell types) and in development and modulation of lung diseases such as asthma, chronic obstructive pulmonary disease, cystic fibrosis and cancer. Emerging techniques that allow examination of mitochondria, and potential strategies to target mitochondria in the treatment of lung diseases are also discussed.
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Affiliation(s)
- Bharathi Aravamudan
- Departments of Anesthesiology, Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN 55905 USA
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46
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Fontes-Oliveira CC, Busquets S, Toledo M, Penna F, Paz Aylwin M, Sirisi S, Silva AP, Orpí M, García A, Sette A, Inês Genovese M, Olivan M, López-Soriano FJ, Argilés JM. Mitochondrial and sarcoplasmic reticulum abnormalities in cancer cachexia: altered energetic efficiency? Biochim Biophys Acta Gen Subj 2013. [PMID: 23200745 DOI: 10.1016/j.bbagen.2012.11.009] [Citation(s) in RCA: 79] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND Cachexia is a wasting condition that manifests in several types of cancer, and the main characteristic is the profound loss of muscle mass. METHODS The Yoshida AH-130 tumor model has been used and the samples have been analyzed using transmission electronic microscopy, real-time PCR and Western blot techniques. RESULTS Using in vivo cancer cachectic model in rats, here we show that skeletal muscle loss is accompanied by fiber morphologic alterations such as mitochondrial disruption, dilatation of sarcoplasmic reticulum and apoptotic nuclei. Analyzing the expression of some factors related to proteolytic and thermogenic processes, we observed in tumor-bearing animals an increased expression of genes involved in proteolysis such as ubiquitin ligases Muscle Ring Finger 1 (MuRF-1) and Muscle Atrophy F-box protein (MAFBx). Moreover, an overexpression of both sarco/endoplasmic Ca(2+)-ATPase (SERCA1) and adenine nucleotide translocator (ANT1), both factors related to cellular energetic efficiency, was observed. Tumor burden also leads to a marked decreased in muscle ATP content. CONCLUSIONS In addition to muscle proteolysis, other ATP-related pathways may have a key role in muscle wasting, both directly by increasing energetic inefficiency, and indirectly, by affecting the sarcoplasmic reticulum-mitochondrial assembly that is essential for muscle function and homeostasis. GENERAL SIGNIFICANCE The present study reports profound morphological changes in cancer cachectic muscle, which are visualized mainly in alterations in sarcoplasmic reticulum and mitochondria. These alterations are linked to pathways that can account for energy inefficiency associated with cancer cachexia.
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Affiliation(s)
- Cibely Cristine Fontes-Oliveira
- Cancer Research Group, Departament de Bioquímica i Biologia Molecular, Facultat de Biologia, Universitat de Barcelona, Diagonal 645 08028-Barcelona, Spain
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Bonaldo P, Sandri M. Cellular and molecular mechanisms of muscle atrophy. Dis Model Mech 2013; 6:25-39. [PMID: 23268536 PMCID: PMC3529336 DOI: 10.1242/dmm.010389] [Citation(s) in RCA: 909] [Impact Index Per Article: 75.8] [Reference Citation Analysis] [Abstract] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Skeletal muscle is a plastic organ that is maintained by multiple pathways regulating cell and protein turnover. During muscle atrophy, proteolytic systems are activated, and contractile proteins and organelles are removed, resulting in the shrinkage of muscle fibers. Excessive loss of muscle mass is associated with poor prognosis in several diseases, including myopathies and muscular dystrophies, as well as in systemic disorders such as cancer, diabetes, sepsis and heart failure. Muscle loss also occurs during aging. In this paper, we review the key mechanisms that regulate the turnover of contractile proteins and organelles in muscle tissue, and discuss how impairments in these mechanisms can contribute to muscle atrophy. We also discuss how protein synthesis and degradation are coordinately regulated by signaling pathways that are influenced by mechanical stress, physical activity, and the availability of nutrients and growth factors. Understanding how these pathways regulate muscle mass will provide new therapeutic targets for the prevention and treatment of muscle atrophy in metabolic and neuromuscular diseases.
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Affiliation(s)
- Paolo Bonaldo
- Department of Biomedical Sciences, University of Padova, 35131 Padova, Italy.
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Role of glycogen synthase kinase 3β in protective effect of propofol against hepatic ischemia-reperfusion injury. J Surg Res 2013; 185:388-98. [PMID: 23743186 DOI: 10.1016/j.jss.2013.05.004] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2012] [Revised: 04/11/2013] [Accepted: 05/01/2013] [Indexed: 01/11/2023]
Abstract
BACKGROUND It was previously reported that propofol, an intravenously administered hypnotic and anesthetic agent, protects organs from ischemia-reperfusion (I/R) injury. However, the underlying mechanisms are largely unknown. Glycogen synthase kinase 3β (GSK-3β) is known to play an important role in the oxidative stress-induced apoptosis. In this study, we investigated the role of GSK-3β and mitochondrial permeability transition pore (MPTP) in the protective effects of propofol against hepatic I/R injury. MATERIALS AND METHODS The left and median hepatic artery and the portal vein branches were blocked by no-damage artery clips to create the model of partial ischemia (70%), and liver lobes were subjected to warm ischemia for 30, 60, 90 min, respectively. Reperfusion of 120 min was then initiated by the removal of clamp. The MPTP opening was assessed by measuring mitochondrial large amplitude swelling and mitochondrial membrane potential. RESULTS Pretreatment with propofol in conditions of hepatic I/R inhibits the apoptosis of hepatocytes as evidenced by decreased terminal deoxynucleotidyl transferase dUTP nick end labeling-positive cells. Importantly, propofol suppressed the mitochondrial GSK-3β by promoting or preserving its phosphorylation at Ser9, thus restraining the opening of MPTP and preventing the mitochondrial swell and mitochondrial membrane potential collapse. CONCLUSIONS Propofol protects liver from I/R injury by sustaining the mitochondrial function, which is possibly involved with the modulation of MPTP and GSK-3β.
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Collagen VI in cancer and its biological mechanisms. Trends Mol Med 2013; 19:410-7. [PMID: 23639582 DOI: 10.1016/j.molmed.2013.04.001] [Citation(s) in RCA: 135] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2013] [Revised: 03/26/2013] [Accepted: 04/02/2013] [Indexed: 12/21/2022]
Abstract
Collagen VI is a widely distributed extracellular matrix protein highly expressed in a variety of cancers that favors tumor growth and progression. A growing number of studies indicate that collagen VI directly affects malignant cells by acting on the Akt-GSK-3β-β-catenin-TCF/LEF axis, enhancing the production of protumorigenic factors and inducing epithelial-mesenchymal transition. Moreover, it affects the tumor microenvironment by increasing the recruitment of macrophages and endothelial cells, thus promoting tumor inflammation and angiogenesis. Furthermore, collagen VI promotes chemotherapy resistance and can be regarded as a potential biomarker for cancer diagnosis. Collectively, these findings strongly support a role for collagen VI as an important regulator in tumors and provide new targets for cancer therapies.
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De Palma S, Leone R, Grumati P, Vasso M, Polishchuk R, Capitanio D, Braghetta P, Bernardi P, Bonaldo P, Gelfi C. Changes in muscle cell metabolism and mechanotransduction are associated with myopathic phenotype in a mouse model of collagen VI deficiency. PLoS One 2013; 8:e56716. [PMID: 23437220 PMCID: PMC3577731 DOI: 10.1371/journal.pone.0056716] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2012] [Accepted: 01/14/2013] [Indexed: 02/06/2023] Open
Abstract
This study identifies metabolic and protein phenotypic alterations in gastrocnemius, tibialis anterior and diaphragm muscles of Col6a1−/− mice, a model of human collagen VI myopathies. All three muscles of Col6a1−/− mice show some common changes in proteins involved in metabolism, resulting in decreased glycolysis and in changes of the TCA cycle fluxes. These changes lead to a different fate of α-ketoglutarate, with production of anabolic substrates in gastrocnemius and tibialis anterior, and with lipotoxicity in diaphragm. The metabolic changes are associated with changes of proteins involved in mechanotransduction at the myotendineous junction/costameric/sarcomeric level (TN-C, FAK, ROCK1, troponin I fast) and in energy metabolism (aldolase, enolase 3, triose phosphate isomerase, creatine kinase, adenylate kinase 1, parvalbumin, IDH1 and FASN). Together, these change may explain Ca2+ deregulation, impaired force development, increased muscle-relaxation-time and fiber damage found in the mouse model as well as in patients. The severity of these changes differs in the three muscles (gastrocnemius<tibialis anterior<diaphragm) and correlates to the mass-to-tendon (myotendineous junction) ratio and to muscle morphology.
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Affiliation(s)
- Sara De Palma
- Department of Biomedical Sciences for Health, University of Milan, Segrate (MI), Italy
- Institute of Molecular Bioimaging and Physiology, National Research Council (CNR), Segrate (MI), Italy
| | - Roberta Leone
- Department of Biomedical Sciences for Health, University of Milan, Segrate (MI), Italy
| | - Paolo Grumati
- Department of Biomedical Sciences, University of Padova, Padova, Italy
| | - Michele Vasso
- Department of Biomedical Sciences for Health, University of Milan, Segrate (MI), Italy
- Institute of Molecular Bioimaging and Physiology, National Research Council (CNR), Segrate (MI), Italy
| | - Roman Polishchuk
- Telethon Institute of Genetics and Medicine, Institute of Protein Biochemistry, Italian National Research Council (CNR), Naples, Italy
| | - Daniele Capitanio
- Department of Biomedical Sciences for Health, University of Milan, Segrate (MI), Italy
| | - Paola Braghetta
- Department of Biomedical Sciences, University of Padova, Padova, Italy
| | - Paolo Bernardi
- Department of Biomedical Sciences, University of Padova, Padova, Italy
| | - Paolo Bonaldo
- Department of Biomedical Sciences, University of Padova, Padova, Italy
| | - Cecilia Gelfi
- Department of Biomedical Sciences for Health, University of Milan, Segrate (MI), Italy
- Institute of Molecular Bioimaging and Physiology, National Research Council (CNR), Segrate (MI), Italy
- * E-mail:
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