1
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Mariano E, Lee DY, Yun SH, Lee J, Choi YW, Park J, Han D, Kim JS, Choi I, Hur SJ. Crusting-fabricated three-dimensional soy-based scaffolds for cultured meat production: A preliminary study. Food Chem 2024; 452:139511. [PMID: 38710136 DOI: 10.1016/j.foodchem.2024.139511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 04/11/2024] [Accepted: 04/27/2024] [Indexed: 05/08/2024]
Abstract
Crusting has been developed as a non-chemical and non-machine intensive scaffold fabrication method. This method is based on the self-assembling ability of soy biomolecules, allowing the fabrication of a three-dimensional network for cell growth. Preliminary characterization revealed differences in pore size, water absorption, and degradation between pure soy-based scaffold (Y2R) and with added glycerol (Y2G). The Fourier-transform infrared spectrum absorbance peaks of functional groups related to proteins, carbohydrates, and lipids hinted the integration of soy biomolecules potentially via the Maillard reaction, as supported by the visible browning of the scaffold surface. Microscopic images revealed aligned myotubes in both scaffolds, with Y2G myotubes having greater proximity after 72 h of proliferation. Both spontaneous and electro-stimulated contractions were recorded as early as 72 h in proliferation medium. Crusting-fabricated soy-based scaffolds can further be explored for its application in cultured meat production.
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Affiliation(s)
- Ermie Mariano
- Department of Animal Science and Technology, Chung-Ang University, 4726 Seodong-daero, Daedeok-myeon, Anseong-si, Gyeonggi-do 17546, Republic of Korea
| | - Da Young Lee
- Department of Animal Science and Technology, Chung-Ang University, 4726 Seodong-daero, Daedeok-myeon, Anseong-si, Gyeonggi-do 17546, Republic of Korea
| | - Seung Hyeon Yun
- Department of Animal Science and Technology, Chung-Ang University, 4726 Seodong-daero, Daedeok-myeon, Anseong-si, Gyeonggi-do 17546, Republic of Korea
| | - Juhyun Lee
- Department of Animal Science and Technology, Chung-Ang University, 4726 Seodong-daero, Daedeok-myeon, Anseong-si, Gyeonggi-do 17546, Republic of Korea
| | - Yeong Woo Choi
- Department of Animal Science and Technology, Chung-Ang University, 4726 Seodong-daero, Daedeok-myeon, Anseong-si, Gyeonggi-do 17546, Republic of Korea
| | - Jinmo Park
- Department of Animal Science and Technology, Chung-Ang University, 4726 Seodong-daero, Daedeok-myeon, Anseong-si, Gyeonggi-do 17546, Republic of Korea
| | - Dahee Han
- Department of Animal Science and Technology, Chung-Ang University, 4726 Seodong-daero, Daedeok-myeon, Anseong-si, Gyeonggi-do 17546, Republic of Korea
| | - Jin Soo Kim
- Department of Animal Science and Technology, Chung-Ang University, 4726 Seodong-daero, Daedeok-myeon, Anseong-si, Gyeonggi-do 17546, Republic of Korea
| | - Inho Choi
- Department of Medical Biotechnology, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | - Sun Jin Hur
- Department of Animal Science and Technology, Chung-Ang University, 4726 Seodong-daero, Daedeok-myeon, Anseong-si, Gyeonggi-do 17546, Republic of Korea.
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2
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Brun A, Mougeot G, Denis P, Collin ML, Pouchin P, Montaurier C, Walrand S, Capel F, Gueugneau M. A new bio imagery user-friendly tool for automatic morphometry measurement on muscle cell cultures and histological sections. Sci Rep 2024; 14:3108. [PMID: 38326394 PMCID: PMC11269594 DOI: 10.1038/s41598-024-53658-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2023] [Accepted: 02/03/2024] [Indexed: 02/09/2024] Open
Abstract
TRUEFAD (TRUE Fiber Atrophy Distinction) is a bioimagery user-friendly tool developed to allow consistent and automatic measurement of myotube diameter in vitro, muscle fiber size and type using rodents and human muscle biopsies. This TRUEFAD package was set up to standardize and dynamize muscle research via easy-to-obtain images run on an open-source plugin for FIJI. We showed here both the robustness and the performance of our pipelines to correctly segment muscle cells and fibers. We evaluated our pipeline on real experiment image sets and showed consistent reliability across images and conditions. TRUEFAD development makes possible systematical and rapid screening of substances impacting muscle morphology for helping scientists focus on their hypothesis rather than image analysis.
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Affiliation(s)
- Aurélien Brun
- UMR1019 Unité de Nutrition Humaine (UNH), INRAE, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Guillaume Mougeot
- iGReD CNRS, INSERM Université Clermont Auvergne, Clermont-Ferrand, France
| | - Philippe Denis
- UMR1019 Unité de Nutrition Humaine (UNH), INRAE, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Marie Laure Collin
- UMR1019 Unité de Nutrition Humaine (UNH), INRAE, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Pierre Pouchin
- iGReD CNRS, INSERM Université Clermont Auvergne, Clermont-Ferrand, France
| | - Christophe Montaurier
- UMR1019 Unité de Nutrition Humaine (UNH), INRAE, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Stéphane Walrand
- UMR1019 Unité de Nutrition Humaine (UNH), INRAE, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Frédéric Capel
- UMR1019 Unité de Nutrition Humaine (UNH), INRAE, Université Clermont Auvergne, Clermont-Ferrand, France.
| | - Marine Gueugneau
- UMR1019 Unité de Nutrition Humaine (UNH), INRAE, Université Clermont Auvergne, Clermont-Ferrand, France
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3
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dos Santos AEA, Guadalupe JL, Albergaria JDS, Almeida IA, Moreira AMS, Copola AGL, de Araújo IP, de Paula AM, Neves BRA, Santos JPF, da Silva AB, Jorge EC, Andrade LDO. Random cellulose acetate nanofibers: a breakthrough for cultivated meat production. Front Nutr 2024; 10:1297926. [PMID: 38249608 PMCID: PMC10796801 DOI: 10.3389/fnut.2023.1297926] [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: 09/20/2023] [Accepted: 11/27/2023] [Indexed: 01/23/2024] Open
Abstract
Overcoming the challenge of creating thick, tissue-resembling muscle constructs is paramount in the field of cultivated meat production. This study investigates the remarkable potential of random cellulose acetate nanofibers (CAN) as a transformative scaffold for muscle tissue engineering (MTE), specifically in the context of cultivated meat applications. Through a comparative analysis between random and aligned CAN, utilizing C2C12 and H9c2 myoblasts, we unveil the unparalleled capabilities of random CAN in facilitating muscle differentiation, independent of differentiation media, by exploiting the YAP/TAZ-related mechanotransduction pathway. In addition, we have successfully developed a novel process for stacking cell-loaded CAN sheets, enabling the production of a three-dimensional meat product. C2C12 and H9c2 loaded CAN sheets were stacked (up to four layers) to form a ~300-400 μm thick tissue 2 cm in length, organized in a mesh of uniaxial aligned cells. To further demonstrate the effectiveness of this methodology for cultivated meat purposes, we have generated thick and viable constructs using chicken muscle satellite cells (cSCs) and random CAN. This groundbreaking discovery offers a cost-effective and biomimetic solution for cultivating and differentiating muscle cells, forging a crucial link between tissue engineering and the pursuit of sustainable and affordable cultivated meat production.
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Affiliation(s)
- Ana Elisa Antunes dos Santos
- Department of Morphology, Institute of Biological Science, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Jorge Luís Guadalupe
- Department of Morphology, Institute of Biological Science, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Juliano Douglas Silva Albergaria
- Laboratory of Biomaterials, Department of Materials Engineering, Federal Center for Technological Education of Minas Gerais (CEFET-MG), Belo Horizonte, Brazil
| | - Itallo Augusto Almeida
- Department of Morphology, Institute of Biological Science, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Amanda Maria Siqueira Moreira
- Department of Morphology, Institute of Biological Science, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Aline Gonçalves Lio Copola
- Laboratory of Biomaterials, Department of Materials Engineering, Federal Center for Technological Education of Minas Gerais (CEFET-MG), Belo Horizonte, Brazil
| | - Isabella Paula de Araújo
- Laboratory of Biomaterials, Department of Materials Engineering, Federal Center for Technological Education of Minas Gerais (CEFET-MG), Belo Horizonte, Brazil
| | - Ana Maria de Paula
- Department of Physics, Institute of Exact Sciences, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Bernardo Ruegger Almeida Neves
- Department of Physics, Institute of Exact Sciences, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - João Paulo Ferreira Santos
- Laboratory of Biomaterials, Department of Materials Engineering, Federal Center for Technological Education of Minas Gerais (CEFET-MG), Belo Horizonte, Brazil
| | - Aline Bruna da Silva
- Laboratory of Biomaterials, Department of Materials Engineering, Federal Center for Technological Education of Minas Gerais (CEFET-MG), Belo Horizonte, Brazil
| | - Erika Cristina Jorge
- Department of Morphology, Institute of Biological Science, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Luciana de Oliveira Andrade
- Department of Morphology, Institute of Biological Science, Federal University of Minas Gerais, Belo Horizonte, Brazil
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4
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O’Brien JG, Willis AB, Long AM, Kwon J, Lee G, Li FW, Page PG, Vo AH, Hadhazy M, Spencer MJ, Crosbie RH, Demonbreun AR, McNally EM. The super-healing MRL strain promotes muscle growth in muscular dystrophy through a regenerative extracellular matrix. JCI Insight 2024; 9:e173246. [PMID: 38175727 PMCID: PMC11143963 DOI: 10.1172/jci.insight.173246] [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: 06/21/2023] [Accepted: 12/21/2023] [Indexed: 01/05/2024] Open
Abstract
The Murphy Roths Large (MRL) mouse strain has "super-healing" properties that enhance recovery from injury. In mice, the DBA/2J strain intensifies many aspects of muscular dystrophy, so we evaluated the ability of the MRL strain to suppress muscular dystrophy in the Sgcg-null mouse model of limb girdle muscular dystrophy. A comparative analysis of Sgcg-null mice in the DBA/2J versus MRL strains showed greater myofiber regeneration, with reduced structural degradation of muscle in the MRL strain. Transcriptomic profiling of dystrophic muscle indicated strain-dependent expression of extracellular matrix (ECM) and TGF-β signaling genes. To investigate the MRL ECM, cellular components were removed from dystrophic muscle sections to generate decellularized myoscaffolds. Decellularized myoscaffolds from dystrophic mice in the protective MRL strain had significantly less deposition of collagen and matrix-bound TGF-β1 and TGF-β3 throughout the matrix. Dystrophic myoscaffolds from the MRL background, but not the DBA/2J background, were enriched in myokines like IGF-1 and IL-6. C2C12 myoblasts seeded onto decellularized matrices from Sgcg-/- MRL and Sgcg-/- DBA/2J muscles showed the MRL background induced greater myoblast differentiation compared with dystrophic DBA/2J myoscaffolds. Thus, the MRL background imparts its effect through a highly regenerative ECM, which is active even in muscular dystrophy.
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Affiliation(s)
- Joseph G. O’Brien
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Alexander B. Willis
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Ashlee M. Long
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Jason Kwon
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - GaHyun Lee
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Frank W. Li
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Patrick G.T. Page
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Andy H. Vo
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Michele Hadhazy
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Melissa J. Spencer
- Department of Neurology, David Geffen School of Medicine, UCLA, Los Angeles, California, USA
| | - Rachelle H. Crosbie
- Department of Integrative Biology and Physiology, Department of Neurology, David Geffen School of Medicine, UCLA, Los Angeles, California, USA
| | - Alexis R. Demonbreun
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
- Department of Pharmacology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Elizabeth M. McNally
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
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5
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Seo JW, Jung WK, Park YH, Bae H. Development of cultivable alginate fibers for an ideal cell-cultivated meat scaffold and production of hybrid cultured meat. Carbohydr Polym 2023; 321:121287. [PMID: 37739499 DOI: 10.1016/j.carbpol.2023.121287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 07/25/2023] [Accepted: 08/09/2023] [Indexed: 09/24/2023]
Abstract
Slaughtering animals for meat pose several challenges, including environmental pollution and ethical concerns. Scaffold-based cell-cultivated meat has been proposed as a solution to these problems, however, the utilization of animal-derived materials for scaffolding or the high cost of production remains a significant challenge. Alginate is an ideal material for cell-cultivated meat scaffolds but has poor cell adhesion properties. To address this issue, we achieved 82 % cell adhesion coverage by controlling the specific structure generated during the ionic crosslinking process of alginate. Post 11 days of culture; we evaluated cell adhesion, differentiation, and aligned cell networks. The cell growth increased by 12.7 % compared to the initial seeding concentration. Finally, we created hybrid cell-cultivated meat by combining single-cell protein from mycelium and cell-cultivated meat. This is non-animal based, edible, cost-effective, and has a desirable texture by blending cell-cultivated meat with a meat analogue. In summary, the creation of improved alginate fibers can effectively tackle various obstacles encountered in the manufacturing of cell-cultivated meat. This includes enhancing cell adhesion, reducing costs, and streamlining the production procedure.
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Affiliation(s)
- Jeong Wook Seo
- Department of Stem Cell and Regenerative Biotechnology, KU Convergence Science and Technology Institute, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Republic of Korea; NoAH Biotech Co., Ltd., Suwon-si, Gyeonggi-do 16614, Republic of Korea
| | - Woo Kyung Jung
- NoAH Biotech Co., Ltd., Suwon-si, Gyeonggi-do 16614, Republic of Korea
| | - Yong Ho Park
- NoAH Biotech Co., Ltd., Suwon-si, Gyeonggi-do 16614, Republic of Korea; Department of Microbiology, College of Veterinary Medicine, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Hojae Bae
- Department of Stem Cell and Regenerative Biotechnology, KU Convergence Science and Technology Institute, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Republic of Korea; Institute of Advanced Regenerative Science, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Republic of Korea.
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6
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Wang K, Frey N, Garcia A, Man K, Yang Y, Gualerzi A, Clemens ZJ, Bedoni M, LeDuc PR, Ambrosio F. Nanotopographical Cues Tune the Therapeutic Potential of Extracellular Vesicles for the Treatment of Aged Skeletal Muscle Injuries. ACS NANO 2023; 17:19640-19651. [PMID: 37797946 PMCID: PMC10603813 DOI: 10.1021/acsnano.3c02269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Accepted: 09/22/2023] [Indexed: 10/07/2023]
Abstract
Skeletal muscle regeneration relies on the tightly temporally regulated lineage progression of muscle stem/progenitor cells (MPCs) from activation to proliferation and, finally, differentiation. However, with aging, MPC lineage progression is disrupted and delayed, ultimately causing impaired muscle regeneration. Extracellular vesicles (EVs) have attracted broad attention as next-generation therapeutics for promoting tissue regeneration. As a next step toward clinical translation, strategies to manipulate EV effects on downstream cellular targets are needed. Here, we developed an engineering strategy to tune the therapeutic potential of EVs using nanotopographical cues. We found that EVs released by young MPCs cultured on flat substrates (fEVs) promoted the proliferation of aged MPCs while EVs released by MPCs cultured on nanogratings (nEVs) promoted myogenic differentiation. We then employed a bioengineered 3D muscle aging model to optimize the administration protocol and test the therapeutic potential of fEVs and nEVs in a high-throughput manner. We found that the sequential administration first of fEVs during the phase of MPC proliferative expansion (i.e., 1 day after injury) followed by nEV administration at the stage of MPC differentiation (i.e., 3 days after injury) enhanced aged muscle regeneration to a significantly greater extent than fEVs and nEVs delivered either in isolation or mixed. The beneficial effects of the sequential EV treatment strategy were further validated in vivo, as evidenced by increased myofiber size and improved functional recovery. Collectively, our study demonstrates the ability of topographical cues to tune EV therapeutic potential and highlights the importance of optimizing the EV administration strategy to accelerate aged skeletal muscle regeneration.
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Affiliation(s)
- Kai Wang
- Discovery
Center for Musculoskeletal Recovery, Schoen
Adams Research Institute at Spaulding, Charlestown, Massachusetts 02129, United States
- Department
of Physical Medicine & Rehabilitation, Harvard Medical School, Boston, Massachusetts 02115, United States
- Department
of Physical Medicine & Rehabilitation, Spaulding Rehabilitation Hospital, Charlestown, Massachusetts 02129, United States
- Department
of Physical Medicine & Rehabilitation, University of Pittsburgh, Pittsburgh, Pennsylvania 15213, United States
| | - Nolan Frey
- Department
of Biological Sciences, Carnegie Mellon
University, Pittsburgh, Pennsylvania 15213, United States
| | - Andres Garcia
- Department
of Mechanical Engineering, Carnegie Mellon
University, Pittsburgh, Pennsylvania 15213, United States
| | - Kun Man
- Department
of Biomedical Engineering, University of
North Texas, Denton, Texas 76207, United States
| | - Yong Yang
- Department
of Biomedical Engineering, University of
North Texas, Denton, Texas 76207, United States
| | - Alice Gualerzi
- IRCCS
Fondazione Don Carlo Gnocchi ONLUS, Milan 20148, Italy
| | - Zachary J. Clemens
- Department
of Environmental and Occupational Health, University of Pittsburgh, Pittsburgh, Pennsylvania 15213, United States
| | - Marzia Bedoni
- IRCCS
Fondazione Don Carlo Gnocchi ONLUS, Milan 20148, Italy
| | - Philip R. LeDuc
- Department
of Biological Sciences, Carnegie Mellon
University, Pittsburgh, Pennsylvania 15213, United States
- Department
of Mechanical Engineering, Carnegie Mellon
University, Pittsburgh, Pennsylvania 15213, United States
- Department
of Computational Biology, Carnegie Mellon
University, Pittsburgh, Pennsylvania 15213, United States
- Department
of Biomedical Engineering, Carnegie Mellon
University, Pittsburgh, Pennsylvania 15213, United States
- Department
of Electrical and Computer Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
| | - Fabrisia Ambrosio
- Discovery
Center for Musculoskeletal Recovery, Schoen
Adams Research Institute at Spaulding, Charlestown, Massachusetts 02129, United States
- Department
of Physical Medicine & Rehabilitation, Harvard Medical School, Boston, Massachusetts 02115, United States
- Department
of Physical Medicine & Rehabilitation, Spaulding Rehabilitation Hospital, Charlestown, Massachusetts 02129, United States
- Department
of Physical Medicine & Rehabilitation, University of Pittsburgh, Pittsburgh, Pennsylvania 15213, United States
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7
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García-Lizarribar A, Villasante A, Lopez-Martin JA, Flandez M, Soler-Vázquez MC, Serra D, Herrero L, Sagrera A, Efeyan A, Samitier J. 3D bioprinted functional skeletal muscle models have potential applications for studies of muscle wasting in cancer cachexia. BIOMATERIALS ADVANCES 2023; 150:213426. [PMID: 37104961 DOI: 10.1016/j.bioadv.2023.213426] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 04/01/2023] [Accepted: 04/08/2023] [Indexed: 04/29/2023]
Abstract
Acquired muscle diseases such as cancer cachexia are responsible for the poor prognosis of many patients suffering from cancer. In vitro models are needed to study the underlying mechanisms of those pathologies. Extrusion bioprinting is an emerging tool to emulate the aligned architecture of fibers while implementing additive manufacturing techniques in tissue engineering. However, designing bioinks that reconcile the rheological needs of bioprinting and the biological requirements of muscle tissue is a challenging matter. Here we formulate a biomaterial with dual crosslinking to modulate the physical properties of bioprinted models. We design 3D bioprinted muscle models that resemble the mechanical properties of native tissue and show improved proliferation and high maturation of differentiated myotubes suggesting that the GelMA-AlgMA-Fibrin biomaterial possesses myogenic properties. The electrical stimulation of the 3D model confirmed the contractile capability of the tissue and enhanced the formation of sarcomeres. Regarding the functionality of the models, they served as platforms to recapitulate skeletal muscle diseases such as muscle wasting produced by cancer cachexia. The genetic expression of 3D models demonstrated a better resemblance to the muscular biopsies of cachectic mouse models. Altogether, this biomaterial is aimed to fabricate manipulable skeletal muscle in vitro models in a non-costly, fast and feasible manner.
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Affiliation(s)
- Andrea García-Lizarribar
- Institute for Bioengineering of Catalonia Barcelona Institute of Science (IBEC-BIST), 08028 Barcelona, Spain; Centro de Investigación Biomédica en Red (CIBER-BBN), 28029 Madrid, Spain
| | - Aranzazu Villasante
- Institute for Bioengineering of Catalonia Barcelona Institute of Science (IBEC-BIST), 08028 Barcelona, Spain; Department of Electronic and Biomedical Engineering, University of Barcelona (UB), 08028 Barcelona, Spain.
| | - Jose Antonio Lopez-Martin
- Clinical & Translational Cancer Research Group, Instituto de Investigación Sanitaria Hospital 12 de Octubre (i+12), Av Córdoba s/n, 28041 Madrid, Spain; Medical Oncology Department, Hospital Universitario 12 de Octubre, Av de Córdoba s/n, 28041 Madrid, Spain
| | - Marta Flandez
- Clinical & Translational Cancer Research Group, Instituto de Investigación Sanitaria Hospital 12 de Octubre (i+12), Av Córdoba s/n, 28041 Madrid, Spain
| | - M Carmen Soler-Vázquez
- Department of Biochemistry and Physiology, School of Pharmacy and Food Sciences, Institut de Biomedicina de la Universitat de Barcelona (IBUB), UB, Spain
| | - Dolors Serra
- Department of Biochemistry and Physiology, School of Pharmacy and Food Sciences, Institut de Biomedicina de la Universitat de Barcelona (IBUB), UB, Spain; Centro de Investigación Biomédica en Red de Fisiopatología de la Obesidad y la Nutrición (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain
| | - Laura Herrero
- Department of Biochemistry and Physiology, School of Pharmacy and Food Sciences, Institut de Biomedicina de la Universitat de Barcelona (IBUB), UB, Spain; Centro de Investigación Biomédica en Red de Fisiopatología de la Obesidad y la Nutrición (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain
| | - Ana Sagrera
- Metabolism and Cell Signaling Laboratory, Spanish National Cancer Research Centre (CNIO), Madrid, Spain
| | - Alejo Efeyan
- Metabolism and Cell Signaling Laboratory, Spanish National Cancer Research Centre (CNIO), Madrid, Spain
| | - Josep Samitier
- Institute for Bioengineering of Catalonia Barcelona Institute of Science (IBEC-BIST), 08028 Barcelona, Spain; Centro de Investigación Biomédica en Red (CIBER-BBN), 28029 Madrid, Spain; Department of Electronic and Biomedical Engineering, University of Barcelona (UB), 08028 Barcelona, Spain.
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8
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Basurto IM, Muhammad SA, Gardner GM, Christ GJ, Caliari SR. Controlling scaffold conductivity and pore size to direct myogenic cell alignment and differentiation. J Biomed Mater Res A 2022; 110:1681-1694. [PMID: 35762455 PMCID: PMC9540010 DOI: 10.1002/jbm.a.37418] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 05/20/2022] [Accepted: 05/24/2022] [Indexed: 12/27/2022]
Abstract
Skeletal muscle's combination of three-dimensional (3D) anisotropy and electrical excitability is critical for enabling normal movement. We previously developed a 3D aligned collagen scaffold incorporating conductive polypyrrole (PPy) particles to recapitulate these key muscle properties and showed that the scaffold facilitated enhanced myotube maturation compared with nonconductive controls. To further optimize this scaffold design, this work assessed the influence of conductive polymer incorporation and scaffold pore architecture on myogenic cell behavior. Conductive PPy and poly(3,4-ethylenedioxythiophene) (PEDOT) particles were synthesized and mixed into a suspension of type I collagen and chondroitin sulfate prior to directional freeze-drying to produce anisotropic scaffolds. Energy dispersive spectroscopy revealed homogenous distribution of conductive PEDOT particles throughout the scaffolds that resulted in a threefold increase in electrical conductivity while supporting similar myoblast metabolic activity compared to nonconductive scaffolds. Control of freezing temperature enabled fabrication of PEDOT-doped scaffolds with a range of pore diameters from 98 to 238 μm. Myoblasts conformed to the anisotropic contact guidance cues independent of pore size to display longitudinal cytoskeletal alignment. The increased specific surface area of the smaller pore scaffolds helped rescue the initial decrease in myoblast metabolic activity observed in larger pore conductive scaffolds while also promoting modestly increased expression levels of the myogenic marker myosin heavy chain (MHC) and gene expression of myoblast determination protein (MyoD). However, cell infiltration to the center of the scaffolds was marginally reduced compared with larger pore variants. Together these data underscore the potential of aligned and PEDOT-doped collagen scaffolds for promoting myogenic cell organization and differentiation.
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Affiliation(s)
- Ivan M. Basurto
- Department of Biomedical EngineeringUniversity of VirginiaCharlottesvilleVirginiaUSA
| | - Samir A. Muhammad
- Department of Biomedical EngineeringUniversity of VirginiaCharlottesvilleVirginiaUSA
| | - Gregg M. Gardner
- Department of Chemical EngineeringUniversity of VirginiaCharlottesvilleVirginiaUSA
| | - George J. Christ
- Department of Biomedical EngineeringUniversity of VirginiaCharlottesvilleVirginiaUSA
- Department of Orthopedic SurgeryUniversity of VirginiaCharlottesvilleVirginiaUSA
| | - Steven R. Caliari
- Department of Biomedical EngineeringUniversity of VirginiaCharlottesvilleVirginiaUSA
- Department of Chemical EngineeringUniversity of VirginiaCharlottesvilleVirginiaUSA
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9
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Wong CJK, Tai YK, Yap JLY, Fong CHH, Loo LSW, Kukumberg M, Fröhlich J, Zhang S, Li JZ, Wang JW, Rufaihah AJ, Franco-Obregón A. Brief exposure to directionally-specific pulsed electromagnetic fields stimulates extracellular vesicle release and is antagonized by streptomycin: A potential regenerative medicine and food industry paradigm. Biomaterials 2022; 287:121658. [PMID: 35841726 DOI: 10.1016/j.biomaterials.2022.121658] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 06/24/2022] [Indexed: 12/12/2022]
Abstract
Pulsing electromagnetic fields (PEMFs) have been shown to promote in vitro and in vivo myogeneses via mitohormetic survival adaptations of which secretome activation is a key component. A single 10-min exposure of donor myoblast cultures to 1.5 mT amplitude PEMFs produced a conditioned media (pCM) capable of enhancing the myogenesis of recipient cultures to a similar degree as direct magnetic exposure. Downwardly-directed magnetic fields produced greater secretome responses than upwardly-directed fields in adherent and fluid-suspended myoblasts. The suspension paradigm allowed for the rapid concentrating of secreted factors, particularly of extracellular vesicles. The brief conditioning of basal media from magnetically-stimulated myoblasts was capable of conferring myoblast survival to a greater degree than basal media supplemented with fetal bovine serum (5%). Downward-directed magnetic fields, applied directly to cells or in the form of pCM, upregulated the protein expression of TRPC channels, markers for cell cycle progression and myogenesis. Direct magnetic exposure produced mild oxidative stress, whereas pCM provision did not, providing a survival advantage on recipient cells. Streptomycin, a TRP channel antagonist, precluded the production of a myogenic pCM. We present a methodology employing a brief and non-invasive PEMF-exposure paradigm to effectively stimulate secretome production and release for commercial or clinical exploitation.
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Affiliation(s)
- Craig Jun Kit Wong
- Department of Surgery, Yong Loo Lin School of Medicine, National University of Singapore, 119228, Singapore; Institute of Health Technology and Innovation (iHealthtech), National University of Singapore, 117599, Singapore; Biolonic Currents Electromagnetic Pulsing Systems Laboratory (BICEPS), National University of Singapore, 117599, Singapore
| | - Yee Kit Tai
- Department of Surgery, Yong Loo Lin School of Medicine, National University of Singapore, 119228, Singapore; Institute of Health Technology and Innovation (iHealthtech), National University of Singapore, 117599, Singapore; Biolonic Currents Electromagnetic Pulsing Systems Laboratory (BICEPS), National University of Singapore, 117599, Singapore.
| | - Jasmine Lye Yee Yap
- Department of Surgery, Yong Loo Lin School of Medicine, National University of Singapore, 119228, Singapore; Institute of Health Technology and Innovation (iHealthtech), National University of Singapore, 117599, Singapore; Biolonic Currents Electromagnetic Pulsing Systems Laboratory (BICEPS), National University of Singapore, 117599, Singapore
| | - Charlene Hui Hua Fong
- Department of Surgery, Yong Loo Lin School of Medicine, National University of Singapore, 119228, Singapore; Institute of Health Technology and Innovation (iHealthtech), National University of Singapore, 117599, Singapore; Biolonic Currents Electromagnetic Pulsing Systems Laboratory (BICEPS), National University of Singapore, 117599, Singapore
| | - Larry Sai Weng Loo
- Institute of Bioengineering and Bioimaging, A*STAR, The Nanos, #06-01, 31 Biopolis Way, 138669, Singapore; Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, 117593, Singapore
| | - Marek Kukumberg
- Department of Obstetrics & Gynaecology, Yong Loo Lin School of Medicine, National University of Singapore, 119228, Singapore; Healthy Longevity Translational Research Programme, Yong Loo Lin School of Medicine, National University of Singapore, 119228, Singapore
| | - Jürg Fröhlich
- Department of Surgery, Yong Loo Lin School of Medicine, National University of Singapore, 119228, Singapore; Fields at Work GmbH, Zurich 8032, Switzerland
| | - Sitong Zhang
- Department of Surgery, Yong Loo Lin School of Medicine, National University of Singapore, 119228, Singapore; Nanomedicine Translational Research Programme, Centre for NanoMedicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Jing Ze Li
- Department of Surgery, Yong Loo Lin School of Medicine, National University of Singapore, 119228, Singapore
| | - Jiong-Wei Wang
- Department of Surgery, Yong Loo Lin School of Medicine, National University of Singapore, 119228, Singapore; Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, 117593, Singapore; Nanomedicine Translational Research Programme, Centre for NanoMedicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; Cardiovascular Research Institute, National University Heart Centre Singapore, Singapore, 119074, Singapore
| | - Abdul Jalil Rufaihah
- Department of Surgery, Yong Loo Lin School of Medicine, National University of Singapore, 119228, Singapore; Healthy Longevity Translational Research Programme, Yong Loo Lin School of Medicine, National University of Singapore, 119228, Singapore; School of Applied Sciences, Temasek Polytechnic, 529757, Singapore
| | - Alfredo Franco-Obregón
- Department of Surgery, Yong Loo Lin School of Medicine, National University of Singapore, 119228, Singapore; Institute of Health Technology and Innovation (iHealthtech), National University of Singapore, 117599, Singapore; Biolonic Currents Electromagnetic Pulsing Systems Laboratory (BICEPS), National University of Singapore, 117599, Singapore; Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, 117593, Singapore; Healthy Longevity Translational Research Programme, Yong Loo Lin School of Medicine, National University of Singapore, 119228, Singapore; Nanomedicine Translational Research Programme, Centre for NanoMedicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; NUS Centre for Cancer Research, Yong Loo Lin School of Medicine, National University of Singapore, 117599, Singapore.
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10
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Gentile GM, Gamarra JR, Engels NM, Blue RE, Hoerr I, Wiedner HJ, Hinkle ER, Cote JL, Leverence E, Mills CA, Herring LE, Tan X, Giudice J. The synaptosome-associated protein 23 (SNAP23) is necessary for proper myogenesis. FASEB J 2022; 36:e22441. [PMID: 35816155 PMCID: PMC9836321 DOI: 10.1096/fj.202101627rr] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Revised: 06/17/2022] [Accepted: 06/24/2022] [Indexed: 01/14/2023]
Abstract
Vesicle-mediated transport is necessary for maintaining cellular homeostasis and proper signaling. The synaptosome-associated protein 23 (SNAP23) is a member of the SNARE protein family and mediates the vesicle docking and membrane fusion steps of secretion during exocytosis. Skeletal muscle has been established as a secretory organ; however, the role of SNAP23 in the context of skeletal muscle development is still unknown. Here, we show that depletion of SNAP23 in C2C12 mouse myoblasts reduces their ability to differentiate into myotubes as a result of premature cell cycle exit and early activation of the myogenic transcriptional program. This effect is rescued when cells are seeded at a high density or when cultured in conditioned medium from wild type cells. Proteomic analysis of collected medium indicates that SNAP23 depletion leads to a misregulation of exocytosis, including decreased secretion of the insulin-like growth factor 1 (IGF1), a critical protein for muscle growth, development, and function. We further demonstrate that treatment of SNAP23-depleted cells with exogenous IGF1 rescues their myogenic capacity. We propose that SNAP23 mediates the secretion of specific proteins, such as IGF1, that are important for achieving proper differentiation of skeletal muscle cells during myogenesis. This work highlights the underappreciated role of skeletal muscle as a secretory organ and contributes to the understanding of factors necessary for myogenesis.
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Affiliation(s)
- Gabrielle M. Gentile
- Department of Cell Biology and Physiology, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
- Curriculum in Genetics and Molecular Biology, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Jennifer R. Gamarra
- Department of Cell Biology and Physiology, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Nichlas M. Engels
- Department of Cell Biology and Physiology, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - R. Eric Blue
- Department of Cell Biology and Physiology, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Isabel Hoerr
- Department of Cell Biology and Physiology, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Hannah J. Wiedner
- Department of Cell Biology and Physiology, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
- Curriculum in Genetics and Molecular Biology, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Emma R. Hinkle
- Department of Cell Biology and Physiology, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
- Curriculum in Genetics and Molecular Biology, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Jessica L. Cote
- Department of Cell Biology and Physiology, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Elise Leverence
- Department of Cell Biology and Physiology, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Christine A. Mills
- UNC Proteomics Core Facility, Department of Pharmacology, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Laura E. Herring
- UNC Proteomics Core Facility, Department of Pharmacology, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Xianming Tan
- Department of Biostatistics, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
- Lineberger Comprehensive Cancer Center, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Jimena Giudice
- Department of Cell Biology and Physiology, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
- Curriculum in Genetics and Molecular Biology, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
- McAllister Heart Institute, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
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11
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Alheib O, da Silva LP, Youn YH, Kwon IK, Reis RL, Correlo VM. 3D bioprinting of gellan gum-based hydrogels tethered with laminin-derived peptides for improved cellular behavior. J Biomed Mater Res A 2022; 110:1655-1668. [PMID: 35678701 DOI: 10.1002/jbm.a.37415] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Revised: 05/25/2022] [Accepted: 05/27/2022] [Indexed: 11/05/2022]
Abstract
The treatment of skeletal muscle defects is still a topic of noteworthy concern since surgical intervention is not capable of recovering muscle function. Herein, we propose myoblasts laden in laminin-inspired biofunctionalized gellan gum hydrogels as promising tissue-engineered skeletal muscle surrogates. Gellan gum-based hydrogels were developed by combining native gellan gum (GG) and GG tethered with laminin-derived peptides (CIKVAVS (V), KNRLTIELEVRTC (T) or RKRLQVQLSIRTC (Q)), using different polymer content (0.75%-1.875%). Hydrogels were characterized in terms of compressive modulus, molecules trafficking, and C2C12 adhesion. Hydrogels with higher polymeric content (1.125%-1.875%) showed higher stiffness whereas hydrogels with lower polymer content (0.75%-1.125%) showed higher fluorescein isothiocyanate-dextran molecules diffusion. Cell spreading was achieved regardless of the laminin-derived peptide but preferred in hydrogels with higher polymer content (1.125%-1.875%). Taken together, hydrogels with 1.125% of polymer content were selected for printability analysis. GG-based inks showed a non-newtonian, shear-thinning, and thixotropic behavior suitable for printing. Accordingly, all inks were printable, but inks tethered with T and Q peptides presented some signs of clogging. Cell viability was affected after printing but increased after 7 days of culture. After 7 days, cells were spreading but not showing significant signs of cell-cell communications. Therefore, cell density was increased, thus, myocytes loaded in V-tethered GG-based inks showed higher cell-cell communication, spreading morphology, and alignment 7, 14 days post-printing. Overall, myoblasts laden in laminin-inspired biofunctionalized GG-based hydrogels are a promising skeletal muscle surrogate with the potential to be used as in vitro model or explored for further in vivo applications.
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Affiliation(s)
- Omar Alheib
- 3B's Research Group, I3Bs - Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Guimarães, Portugal.,ICVS/3B's-PT Government Associate Laboratory, Guimarães, Portugal
| | - Lucilia P da Silva
- 3B's Research Group, I3Bs - Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Guimarães, Portugal.,ICVS/3B's-PT Government Associate Laboratory, Guimarães, Portugal
| | - Yun Hee Youn
- 3B's Research Group, I3Bs - Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Guimarães, Portugal.,ICVS/3B's-PT Government Associate Laboratory, Guimarães, Portugal.,Department of Dental Materials, School of Dentistry, Kyung Hee University, Seoul, Republic of Korea
| | - Il Keun Kwon
- Department of Dental Materials, School of Dentistry, Kyung Hee University, Seoul, Republic of Korea
| | - Rui L Reis
- 3B's Research Group, I3Bs - Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Guimarães, Portugal.,ICVS/3B's-PT Government Associate Laboratory, Guimarães, Portugal.,Department of Dental Materials, School of Dentistry, Kyung Hee University, Seoul, Republic of Korea
| | - Vitor M Correlo
- 3B's Research Group, I3Bs - Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Guimarães, Portugal.,ICVS/3B's-PT Government Associate Laboratory, Guimarães, Portugal
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12
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Preparation of Spheroids from Primary Pig Cells in a Mid-Scale Bioreactor Retaining Their Myogenic Potential. Cells 2022; 11:cells11091453. [PMID: 35563757 PMCID: PMC9103977 DOI: 10.3390/cells11091453] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 04/21/2022] [Accepted: 04/22/2022] [Indexed: 01/09/2023] Open
Abstract
Three-dimensional cell culture techniques mimic the in vivo cell environment more adequately than flat surfaces. Spheroids are multicellular aggregates and we aimed to produce scaffold-free spheroids of myogenic origin, called myospheres, using a mid-scale incubator and bioreactor hybrid. For the first time, we obtained spheroids from primary porcine muscle cells (PMCs) with this technology and compared their morphology and growth parameters, marker expression, and myogenic potential to C2C12-derived spheroids. Both cell types were able to form round-shaped spheroids in the bioreactor already after 24 h. The mean diameter of the C2C12 spheroids (44.6 µm) was larger than that of the PMCs (32.7 µm), and the maximum diameter exceeded 1 mm. C2C12 cells formed less aggregates than PMCs with a higher packing density (cell nuclei/mm2). After dissociation from the spheroids, C2C12 cells and PMCs started to proliferate again and were able to differentiate into the myogenic lineage, as shown by myotube formation and the expression of F-Actin, Desmin, MyoG, and Myosin. For C2C12, multinucleated syncytia and Myosin expression were observed in spheroids, pointing to accelerated myogenic differentiation. In conclusion, the mid-scale incubator and bioreactor system is suitable for spheroid formation and cultivation from primary muscle cells while preserving their myogenic potential.
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13
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Cell alignment modulated by surface nano-topography - Roles of cell-matrix and cell-cell interactions. Acta Biomater 2022; 142:149-159. [PMID: 35124266 DOI: 10.1016/j.actbio.2022.01.057] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 01/19/2022] [Accepted: 01/31/2022] [Indexed: 12/27/2022]
Abstract
The propensity of cells to align in particular directions is relevant to a number of areas, including tissue engineering and biohybrid robotics. Cell alignment is modulated through various extracellular conditions including surface topographies, mechanical cues from cell-matrix interactions, and cell-cell interactions. Understanding of these conditions provides guidance for desirable cellular structure constructions. In this study, we examine the roles of surface topographies and cell-cell interactions in inducing cell alignment. We employed wavy surface topographies at the nanometer scale as a model extracellular environment for cell culture. The results show that, within a certain range of wavelengths and amplitudes of the surface topographies, cell alignment is dependent on cell confluency. This dependence on both topology and confluency suggests interplay between cell-cell and cell-matrix interactions in inducing cell alignment. Images of sparsely distributed and confluent cells also demonstrated clear differences in the structures of their focal adhesion complexes. To understand this effect, we introduced anti-N-cadherin to cell culture to inhibit cell-cell interactions. The results show that, when anti-N-cadherin was applied, cells on wavy surfaces required greater confluency to achieve the same alignment compared to that in the absence of anti-N-cadherin. The understanding of the cell alignment mechanisms will be important in numerous potential applications such as scaffold design, tissue repair, and development of biohybrid robotic systems. STATEMENT OF SIGNIFICANCE: Cell alignment plays a critical role in numerous biological functions. Advances in tissue engineering utilizes cell alignment to restore, maintain, or even replace different types of biological tissues. The clinical impact that tissue engineering has made is facilitated by advancements in the understanding of interactions between scaffolds, biological factors, and cells. This work further elucidates the role of cell-cell interactions in promoting the organization of biological tissues.
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14
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Samandari M, Quint J, Rodríguez-delaRosa A, Sinha I, Pourquié O, Tamayol A. Bioinks and Bioprinting Strategies for Skeletal Muscle Tissue Engineering. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2105883. [PMID: 34773667 PMCID: PMC8957559 DOI: 10.1002/adma.202105883] [Citation(s) in RCA: 43] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 10/28/2021] [Indexed: 05/16/2023]
Abstract
Skeletal muscles play important roles in critical body functions and their injury or disease can lead to limitation of mobility and loss of independence. Current treatments result in variable functional recovery, while reconstructive surgery, as the gold-standard approach, is limited due to donor shortage, donor-site morbidity, and limited functional recovery. Skeletal muscle tissue engineering (SMTE) has generated enthusiasm as an alternative solution for treatment of injured tissue and serves as a functional disease model. Recently, bioprinting has emerged as a promising tool for recapitulating the complex and highly organized architecture of skeletal muscles at clinically relevant sizes. Here, skeletal muscle physiology, muscle regeneration following injury, and current treatments following muscle loss are discussed, and then bioprinting strategies implemented for SMTE are critically reviewed. Subsequently, recent advancements that have led to improvement of bioprinting strategies to construct large muscle structures, boost myogenesis in vitro and in vivo, and enhance tissue integration are discussed. Bioinks for muscle bioprinting, as an essential part of any bioprinting strategy, are discussed, and their benefits, limitations, and areas to be improved are highlighted. Finally, the directions the field should expand to make bioprinting strategies more translational and overcome the clinical unmet needs are discussed.
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Affiliation(s)
- Mohamadmahdi Samandari
- Department of Biomedical Engineering, University of Connecticut Health Center, Farmington, CT 06030, USA
| | - Jacob Quint
- Department of Biomedical Engineering, University of Connecticut Health Center, Farmington, CT 06030, USA
| | | | - Indranil Sinha
- Department of Surgery, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02139, USA
| | - Olivier Pourquié
- Department of Genetics, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Ali Tamayol
- Department of Biomedical Engineering, University of Connecticut Health Center, Farmington, CT 06030, USA
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15
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Li K, Huang W, Wang Z, Chen Y, Cai D, Nie Q. circTAF8 Regulates Myoblast Development and Associated Carcass Traits in Chicken. Front Genet 2022; 12:743757. [PMID: 35058965 PMCID: PMC8764441 DOI: 10.3389/fgene.2021.743757] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Accepted: 11/30/2021] [Indexed: 11/13/2022] Open
Abstract
Recent studies have shown that circular RNAs (circRNAs) play important roles in skeletal muscle development. CircRNA biogenesis is dependent on the genetic context. Single-nucleotide polymorphisms in the introns flanking circRNAs may be intermediate-inducible factors between circRNA expression and phenotypic traits. Our previous study showed that circTAF8 is an abundantly and differentially expressed circRNA in leg muscle during chicken embryonic development. Here, we aimed to investigate circTAF8 function in muscle development and the association of the SNPs in the circTAF8 flanking introns with carcass traits. In this study, we observed that overexpression of circTAF8 could promote the proliferation of chicken primary myoblasts and inhibit their differentiation. In addition, the SNPs in the introns flanking the circTAF8 locus and those associated with chicken carcass traits were analyzed in 335 partridge chickens. A total of eight SNPs were found associated with carcass traits such as leg muscle weight, live weight, and half and full-bore weight. The association analysis results of haplotype combinations were consistent with the association analysis of a single SNP. These results suggest that circTAF8 plays a regulatory role in muscle development. These identified SNPs were found correlated with traits to muscle development and carcass muscle weight in chickens.
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Affiliation(s)
- Kan Li
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou, China.,National-Local Joint Engineering Research Center for Livestock Breeding, Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, and Key Laboratory of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou, China
| | - Weichen Huang
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou, China.,National-Local Joint Engineering Research Center for Livestock Breeding, Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, and Key Laboratory of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou, China
| | - Zhijun Wang
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou, China.,National-Local Joint Engineering Research Center for Livestock Breeding, Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, and Key Laboratory of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou, China
| | - Yangfeng Chen
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou, China.,National-Local Joint Engineering Research Center for Livestock Breeding, Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, and Key Laboratory of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou, China
| | - Danfeng Cai
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou, China.,National-Local Joint Engineering Research Center for Livestock Breeding, Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, and Key Laboratory of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou, China
| | - Qinghua Nie
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou, China.,National-Local Joint Engineering Research Center for Livestock Breeding, Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, and Key Laboratory of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou, China
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16
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Konuk Tokak E, Çetin Altındal D, Akdere ÖE, Gümüşderelioğlu M. In-vitro effectiveness of poly-β-alanine reinforced poly(3-hydroxybutyrate) fibrous scaffolds for skeletal muscle regeneration. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 131:112528. [PMID: 34857307 DOI: 10.1016/j.msec.2021.112528] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2021] [Revised: 10/16/2021] [Accepted: 10/25/2021] [Indexed: 12/13/2022]
Abstract
In skeletal muscle tissue engineering, success has not been achieved yet, since the properties of the tissue cannot be fully mimicked. The aim of this study is to investigate the potential use of poly-3-hydroxybutyrate (P3HB)/poly-β-alanine (PBA) fibrous tissue scaffolds with piezoelectric properties for skeletal muscle regeneration. Random and aligned P3HB/PBA (5:1) fibrous matrices were prepared by electrospinning with average diameters of 951 ± 153 nm and 891 ± 247 nm, respectively. X-ray diffraction (XRD) analysis showed that PBA reinforcement and aligned orientation of fibers reduced the crystallinity and brittleness of P3HB matrix. While tensile strength and elastic modulus of random fibrous matrices were determined as 3.9 ± 1.0 MPa and 86.2 ± 10.6 MPa, respectively, in the case of aligned fibers they increased to 8.5 ± 1.8 MPa and 378.2 ± 4.2 MPa, respectively. Aligned matrices exhibited a soft and an elastic behaviour with ~70% elongation in similar to the natural tissue. For the first time, d33 piezoelectric modulus of P3HB/PBA matrices were measured as 5 pC/N and 5.3 pC/N, for random and aligned matrices, respectively. Cell culture studies were performed with C2C12 myoblastic cell line. Both of random and aligned P3HB/PBA fibrous matrices supported attachment and proliferation of myoblasts, but cells cultured on aligned fibers formed regular and thick myofibril structures similar to the native muscle tissue. Reverse transcription polymerase chain reaction (RT-qPCR) analysis indicated that MyoD gene was expressed in the cells cultured on both fiber orientation, however, on the aligned fibers significant increase was determined in Myogenin and Myosin Heavy Chain (MHC) gene expressions, which indicate functional tubular structures. The results of RT-qPCR analysis were also supported with immunohistochemistry for myogenic markers. These in vitro studies have shown that piezoelectric P3HB/PBA aligned fibrous scaffolds can successfully mimic skeletal muscle tissue with its superior chemical, morphological, mechanical, and electroactive properties.
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Affiliation(s)
- Elvan Konuk Tokak
- Nanotechnology and Nanomedicine Division, Hacettepe University, Graduate School of Science and Engineering, Beytepe, Ankara, Turkey
| | - Damla Çetin Altındal
- Bioengineering Division, Hacettepe University, Graduate School of Science and Engineering, Beytepe, Ankara, Turkey
| | - Özge Ekin Akdere
- Bioengineering Division, Hacettepe University, Graduate School of Science and Engineering, Beytepe, Ankara, Turkey
| | - Menemşe Gümüşderelioğlu
- Nanotechnology and Nanomedicine Division, Hacettepe University, Graduate School of Science and Engineering, Beytepe, Ankara, Turkey; Bioengineering Division, Hacettepe University, Graduate School of Science and Engineering, Beytepe, Ankara, Turkey.
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17
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Goullée H, Taylor RL, Forrest ARR, Laing NG, Ravenscroft G, Clayton JS. Improved CRISPR/Cas9 gene editing in primary human myoblasts using low confluency cultures on Matrigel. Skelet Muscle 2021; 11:23. [PMID: 34551826 PMCID: PMC8456651 DOI: 10.1186/s13395-021-00278-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Accepted: 09/08/2021] [Indexed: 11/23/2022] Open
Abstract
Background CRISPR/Cas9 is an invaluable tool for studying cell biology and the development of molecular therapies. However, delivery of CRISPR/Cas9 components into some cell types remains a major hurdle. Primary human myoblasts are a valuable cell model for muscle studies, but are notoriously difficult to transfect. There are currently no commercial lipofection protocols tailored for primary myoblasts, and most generic guidelines simply recommend transfecting healthy cells at high confluency. This study aimed to maximize CRISPR/Cas9 transfection and editing in primary human myoblasts. Methods Since increased cell proliferation is associated with increased transfection efficiency, we investigated two factors known to influence myoblast proliferation: cell confluency, and a basement membrane matrix, Matrigel. CRISPR/Cas9 editing was performed by delivering Cas9 ribonucleoprotein complexes via lipofection into primary human myoblasts, cultured in wells with or without a Matrigel coating, at low (~ 40%) or high (~ 80%) confluency. Results Cells transfected at low confluency on Matrigel-coated wells had the highest levels of transfection, and were most effectively edited across three different target loci, achieving a maximum editing efficiency of 93.8%. On average, editing under these conditions was >4-fold higher compared to commercial recommendations (high confluency, uncoated wells). Conclusion This study presents a simple, effective and economical method of maximizing CRISPR/Cas9-mediated gene editing in primary human myoblasts. This protocol could be a valuable tool for improving the genetic manipulation of cultured human skeletal muscle cells, and potentially be adapted for use in other cell types. Supplementary Information The online version contains supplementary material available at 10.1186/s13395-021-00278-1.
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Affiliation(s)
- Hayley Goullée
- Centre for Medical Research, Faculty of Health and Medical Sciences, The University of Western Australia, Nedlands, WA, Australia.,Harry Perkins Institute of Medical Research, 6 Verdun St, Nedlands, WA, 6009, Australia.,School of Biomedical Science, Faculty of Health and Medical Sciences, The University of Western Australia, Nedlands, WA, Australia
| | - Rhonda L Taylor
- Centre for Medical Research, Faculty of Health and Medical Sciences, The University of Western Australia, Nedlands, WA, Australia.,Harry Perkins Institute of Medical Research, 6 Verdun St, Nedlands, WA, 6009, Australia.,School of Biomedical Science, Faculty of Health and Medical Sciences, The University of Western Australia, Nedlands, WA, Australia
| | - Alistair R R Forrest
- Centre for Medical Research, Faculty of Health and Medical Sciences, The University of Western Australia, Nedlands, WA, Australia.,Harry Perkins Institute of Medical Research, 6 Verdun St, Nedlands, WA, 6009, Australia
| | - Nigel G Laing
- Centre for Medical Research, Faculty of Health and Medical Sciences, The University of Western Australia, Nedlands, WA, Australia.,Harry Perkins Institute of Medical Research, 6 Verdun St, Nedlands, WA, 6009, Australia
| | - Gianina Ravenscroft
- Centre for Medical Research, Faculty of Health and Medical Sciences, The University of Western Australia, Nedlands, WA, Australia.,Harry Perkins Institute of Medical Research, 6 Verdun St, Nedlands, WA, 6009, Australia
| | - Joshua S Clayton
- Centre for Medical Research, Faculty of Health and Medical Sciences, The University of Western Australia, Nedlands, WA, Australia. .,Harry Perkins Institute of Medical Research, 6 Verdun St, Nedlands, WA, 6009, Australia.
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18
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TERAMOTO N, IKEDA M, SUGIHARA H, SHIGA T, MATSUWAKI T, NISHIHARA M, UCHIDA K, YAMANOUCHI K. Loss of p16/Ink4a drives high frequency of rhabdomyosarcoma in a rat model of Duchenne muscular dystrophy. J Vet Med Sci 2021; 83:1416-1424. [PMID: 34334511 PMCID: PMC8498826 DOI: 10.1292/jvms.21-0243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Accepted: 07/20/2021] [Indexed: 11/22/2022] Open
Abstract
Rhabdomyosarcoma (RMS) is an aggressive type of soft tissue sarcoma, and pleomorphic RMS is a rare subtype of RMS found in adult. p16 is a tumor suppressor which inhibits cell cycle. In human RMS, p16 gene is frequently deleted, but p16-null mice do not develop RMS. We reported that genetic ablation of p16 by the crossbreeding of p16 knock-out rats (p16-KO rats) improved the dystrophic phenotype of a rat model of Duchenne muscular dystrophy (Dmd-KO rats). However, p16/Dmd double knock-out rats (dKO rats) unexpectedly developed sarcoma. In the present study, we raised p16-KO, Dmd-KO, and dKO rats until 11 months of age. Twelve out of 22 dKO rats developed pleomorphic RMS after 9 months of age, while none of p16-KO rats and Dmd-KO rats developed tumor. The neoplasms were connected to skeletal muscle tissue with indistinct borders and characterized by diffuse proliferation of pleomorphic cells which had eosinophilic cytoplasm and atypical nuclei with anisokaryosis. For almost all cases, the tumor cells immunohistochemically expressed myogenic markers including desmin, MyoD, and myogenin. The single cell cloning from tumor primary cells gained 20 individual Pax7-negative MyoD-positive RMS cell clones. Our results demonstrated that double knock-out of p16 and dystrophin in rats leads to the development of pleomorphic RMS, providing an animal model that may be useful to study the developmental mechanism of pleomorphic RMS.
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Affiliation(s)
- Naomi TERAMOTO
- Laboratory of Veterinary Physiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan
| | - Masanari IKEDA
- Laboratory of Veterinary Physiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan
| | - Hidetoshi SUGIHARA
- Laboratory of Veterinary Physiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan
| | - Takanori SHIGA
- Laboratory of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan
| | - Takashi MATSUWAKI
- Laboratory of Veterinary Physiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan
| | - Masugi NISHIHARA
- Laboratory of Veterinary Physiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan
| | - Kazuyuki UCHIDA
- Laboratory of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan
| | - Keitaro YAMANOUCHI
- Laboratory of Veterinary Physiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan
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19
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Lee EA, Kwak SY, Yang JK, Lee YS, Kim JH, Kim HD, Hwang NS. Graphene oxide film guided skeletal muscle differentiation. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 126:112174. [PMID: 34082975 DOI: 10.1016/j.msec.2021.112174] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 04/15/2021] [Accepted: 05/03/2021] [Indexed: 11/19/2022]
Abstract
Engineered muscle tissues can be used for the regeneration or substitution of irreversibly damaged or diseased muscles. Recently, graphene oxide (GO) has been shown to improve the adsorption of biomolecules through its biocompatibility and intrinsic π-π interactions. The possibility of producing various GO modifications may also provide additional functionality as substrates for cell culture. In particular, substrates fabricated from pristine GO have been shown to improve cellular functions and influence stem cell differentiation. In this study, we fabricated tunable GO substrates with various physical and chemical properties and demonstrated the ability of the substrate to support myogenic differentiation. Higher cellular adhesion affinity with unique microfilament anchorage was observed for GO substrates with increased GO concentrations. In addition, amino acid (AA)-conjugated GO (GO-AA) substrates were fabricated to modify GO chemical properties and study the effects of chemically modified GO substrates on myogenic differentiation. Our findings demonstrate that minor tuning of GO significantly influences myogenic differentiation.
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Affiliation(s)
- Eunjee A Lee
- School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Seoul 08826, Republic of Korea
| | - Seon-Yeong Kwak
- Department of Agriculture, Forestry and Bioresources, College of Agriculture and Life Science, Seoul National University, Seoul 08826, Republic of Korea; Institute of Bioengineering, BioMAX/N-Bio Institute of Seoul National University, Seoul 08826, Republic of Korea
| | - Jin-Kyoung Yang
- School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Seoul 08826, Republic of Korea
| | - Yoon-Sik Lee
- School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Seoul 08826, Republic of Korea
| | - Jong-Ho Kim
- Department of Materials Science and Chemical Engineering, Hanyang University, Ansan 15588, Republic of Korea.
| | - Hwan D Kim
- Department of Polymer Science and Engineering, Korea National University of Transportation, Chungju 27469, Republic of Korea.
| | - Nathaniel S Hwang
- School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Seoul 08826, Republic of Korea; Institute of Bioengineering, BioMAX/N-Bio Institute of Seoul National University, Seoul 08826, Republic of Korea; Institute of Engineering Research, Seoul National University, Seoul 08826, Republic of Korea.
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20
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Ran H, Lu Y, Zhang Q, Hu Q, Zhao J, Wang K, Tong X, Su Q. MondoA Is Required for Normal Myogenesis and Regulation of the Skeletal Muscle Glycogen Content in Mice. Diabetes Metab J 2021; 45:439-451. [PMID: 32431117 PMCID: PMC8164950 DOI: 10.4093/dmj.2019.0212] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Accepted: 02/12/2020] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND Skeletal muscle is the largest tissue in the human body, and it plays a major role in exerting force and maintaining metabolism homeostasis. The role of muscle transcription factors in the regulation of metabolism is not fully understood. MondoA is a glucose-sensing transcription factor that is highly expressed in skeletal muscle. Previous studies suggest that MondoA can influence systemic metabolism homeostasis. However, the function of MondoA in the skeletal muscle remains unclear. METHODS We generated muscle-specific MondoA knockout (MAKO) mice and analyzed the skeletal muscle morphology and glycogen content. Along with skeletal muscle from MAKO mice, C2C12 myocytes transfected with small interfering RNA against MondoA were also used to investigate the role and potential mechanism of MondoA in the development and glycogen metabolism of skeletal muscle. RESULTS MAKO caused muscle fiber atrophy, reduced the proportion of type II fibers compared to type I fibers, and increased the muscle glycogen level. MondoA knockdown inhibited myoblast proliferation, migration, and differentiation by inhibiting the phosphatase and tensin homolog (PTEN)/phosphoinositide 3-kinase (PI3K)/Akt pathway. Further mechanistic experiments revealed that the increased muscle glycogen in MAKO mice was caused by thioredoxin-interacting protein (TXNIP) downregulation, which led to upregulation of glucose transporter 4 (GLUT4), potentially increasing glucose uptake. CONCLUSION MondoA appears to mediate mouse myofiber development, and MondoA decreases the muscle glycogen level. The findings indicate the potential function of MondoA in skeletal muscle, linking the glucose-related transcription factor to myogenesis and skeletal myofiber glycogen metabolism.
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Affiliation(s)
- Hui Ran
- Department of Endocrinology, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yao Lu
- Department of Endocrinology, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Qi Zhang
- Department of Endocrinology, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Qiuyue Hu
- Department of Endocrinology, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Junmei Zhao
- Department of Hematology, Renmin Hospital, Wuhan University, Wuhan, China
| | - Kai Wang
- Department of Pediatrics, 1st Affiliated Hospital, Zhengzhou University, Zhengzhou, China
| | - Xuemei Tong
- Department of Biochemistry and Molecular Cell Biology, Shanghai Key Laboratory for Tumor Microenvironment and Inflammation, Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Qing Su
- Department of Endocrinology, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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21
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Ciriza J, Rodríguez-Romano A, Nogueroles I, Gallego-Ferrer G, Cabezuelo RM, Pedraz JL, Rico P. Borax-loaded injectable alginate hydrogels promote muscle regeneration in vivo after an injury. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 123:112003. [PMID: 33812623 PMCID: PMC8085734 DOI: 10.1016/j.msec.2021.112003] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 02/05/2021] [Accepted: 02/20/2021] [Indexed: 11/25/2022]
Abstract
Muscle tissue possess an innate regenerative potential that involves an extremely complicated and synchronized process on which resident muscle stem cells play a major role: activate after an injury, differentiate and fuse originating new myofibers for muscle repair. Considerable efforts have been made to design new approaches based on material systems to potentiate muscle repair by engineering muscle extracellular matrix and/or including soluble factors/cells in the media, trying to recapitulate the key biophysical and biochemical cues present in the muscle niche. This work proposes a different and simple approach to potentiate muscle regeneration exploiting the interplay between specific cell membrane receptors. The simultaneous stimulation of borate transporter, NaBC1 (encoded by SLC4A11gene), and fibronectin-binding integrins induced higher number and size of focal adhesions, major cell spreading and actin stress fibers, strengthening myoblast attachment and providing an enhanced response in terms of myotube fusion and maturation. The stimulated NaBC1 generated an adhesion-driven state through a mechanism that involves simultaneous NaBC1/α5β1/αvβ3 co-localization. We engineered and characterized borax-loaded alginate hydrogels for an effective activation of NaBC1 in vivo. After inducing an acute injury with cardiotoxin in mice, active-NaBC1 accelerated the muscle regeneration process. Our results put forward a new biomaterial approach for muscle repair.
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Affiliation(s)
- Jesús Ciriza
- Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Spain; NanoBioCel Group, Laboratory of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, University of the Basque Country UPV/EHU, C/ Miguel de Unamuno, 3, 01006 Vitoria Gasteiz, Spain.
| | - Ana Rodríguez-Romano
- Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Spain; Center for Biomaterials and Tissue Engineering (CBIT), Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain
| | - Ignacio Nogueroles
- Center for Biomaterials and Tissue Engineering (CBIT), Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain
| | - Gloria Gallego-Ferrer
- Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Spain; Center for Biomaterials and Tissue Engineering (CBIT), Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain.
| | - Rubén Martín Cabezuelo
- Center for Biomaterials and Tissue Engineering (CBIT), Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain.
| | - José Luis Pedraz
- Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Spain; NanoBioCel Group, Laboratory of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, University of the Basque Country UPV/EHU, C/ Miguel de Unamuno, 3, 01006 Vitoria Gasteiz, Spain.
| | - Patricia Rico
- Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Spain; Center for Biomaterials and Tissue Engineering (CBIT), Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain.
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22
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Yang GH, Kim W, Kim J, Kim G. A skeleton muscle model using GelMA-based cell-aligned bioink processed with an electric-field assisted 3D/4D bioprinting. Theranostics 2021; 11:48-63. [PMID: 33391460 PMCID: PMC7681100 DOI: 10.7150/thno.50794] [Citation(s) in RCA: 51] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Accepted: 09/19/2020] [Indexed: 12/26/2022] Open
Abstract
The most important requirements of biomedical substitutes used in muscle tissue regeneration are appropriate topographical cues and bioactive components for the induction of myogenic differentiation/maturation. Here, we developed an electric field-assisted 3D cell-printing process to fabricate cell-laden fibers with a cell-alignment cue. Methods: We used gelatin methacryloyl (GelMA) laden with C2C12 cells. The cells in the GelMA fiber were exposed to electrical stimulation, which induced cell alignment. Various cellular activities, such as cell viability, cell guidance, and proliferation/myogenic differentiation of the microfibrous cells in GelMA, were investigated in response to parameters (applied electric fields, viscosity of the bioink, and encapsulated cell density). In addition, a cell-laden fibrous bundle mimicking the structure of the perimysium was designed using gelatin hydrogel in conjunction with a 4D bioprinting technique. Results: Cell-laden microfibers were fabricated using optimized process parameters (electric field intensity = 0.8 kV cm-1, applying time = 12 s, and cell number = 15 × 106 cells mL-1). The cell alignment induced by the electric field promoted significantly greater myotube formation, formation of highly ordered myotubes, and enhanced maturation, compared to the normally printed cell-laden structure. The shape change mechanism that involved the swelling properties and folding abilities of gelatin was successfully evaluated, and we bundled the GelMA microfibers using a 4D-conceptualized gelatin film. Conclusion: The C2C12-laden GelMA structure demonstrated effective myotube formation/maturation in response to stimulation with an electric field. Based on these results, we propose that our cell-laden fibrous bundles can be employed as in vitro drug testing models for obtaining insights into the various myogenic responses.
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Affiliation(s)
- Gi Hoon Yang
- Department of Biomechatronic Engineering, College of Biotechnology and Bioengineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Wonjin Kim
- Department of Biomechatronic Engineering, College of Biotechnology and Bioengineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Juyeon Kim
- Department of Biomechatronic Engineering, College of Biotechnology and Bioengineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - GeunHyung Kim
- Department of Biomechatronic Engineering, College of Biotechnology and Bioengineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
- Biomedical Institute for Convergence at SKKU, Sungkyunkwan University, Suwon 16419, Republic of Korea
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23
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In Vitro and In Vivo Effects of Fermented Oyster-Derived Lactate on Exercise Endurance Indicators in Mice. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17238811. [PMID: 33260934 PMCID: PMC7729911 DOI: 10.3390/ijerph17238811] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Revised: 11/17/2020] [Accepted: 11/24/2020] [Indexed: 12/11/2022]
Abstract
Exogenous lactate administration has more recently been investigated for its various prophylactic effects. Lactate derived from potential functional foods, such as fermented oyster extract (FO), may emerge as a practical and effective method of consuming exogenous lactate. The current study endeavored to ascertain whether the lactate derived from FO may act on muscle cell biology, and to what extent this may translate into physical fitness improvements. We examined the effects of FO in vitro and in vivo, on mouse C2C12 cells and exercise performance indicators in mice, respectively. In vitro, biochemical analysis was carried out to determine the effects of FO on lactate content and muscle cell energy metabolism, including adenosine triphosphate (ATP) activity. Western blot analysis was also utilized to measure the protein expression of total adenosine monophosphate-activated protein kinase (AMPK), p-AMPK (Thr172), lactate dehydrogenase (LDH), succinate dehydrogenase (SDHA) and peroxisome proliferator-activated receptor gamma coactivator-1α (PGC-1α) in response to FO administration. Three experimental groups were formed: a positive control (PC) treated with 1% horse serum, FO10 treated with 10 μg/mL and FO50 treated with 50 μg/mL. In vivo, the effects of FO supplementation on exercise endurance were measured using the Rota-rod test, and Western blot analysis measured myosin heavy-chain 2 (MYH2) to assess skeletal muscle growth, alongside p-AMPK, total-AMPK, PGC-1α, cytochrome C and UCP3 protein expression. Biochemical analysis was also performed on muscle tissue to measure the changes in concentration of liver lactate, lactate dehydrogenase (LDH), glycogen and citrate. Five groups (n = 10/per group) consisted of a control group (CON), exercise group (Ex), positive control treated with Ex and 500 mg/kg Taurine (Ex-Tau), Ex and 100 mg/kg FO supplementation (Ex-FO100) and Ex and 200 mg/kg FO supplementation (Ex-FO200) orally administered over the 4-week experimental period.FO50 significantly increased PGC-1α expression (p < 0.001), whereas both FO10 and FO50 increased the expression of p-AMPK (p < 0.001), in C2C12 muscle cells, showing increased signaling important for mitochondrial metabolism and biogenesis. Muscle lactate levels were also significantly increased following FO10 (p < 0.05) and FO50 (p < 0.001). In vivo, muscle protein expression of p-AMPK (p < 0.05) and PGC-1α were increased, corroborating our in vitro results. Cytochrome C also significantly increased following FO200 intake. These results suggest that the effects of FO supplementation may manifest in a dose-response manner. FO administration, in vitro, and supplementation, in vivo, both demonstrate a potential for improvements in mitochondrial metabolism and biogenesis, and even for potentiating the adaptive effects of endurance exercise. Mechanistically, lactate may be an important molecule in explaining the aforementioned positive effects of FO.
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24
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Taurine Attenuates Catabolic Processes Related to the Onset of Sarcopenia. Int J Mol Sci 2020; 21:ijms21228865. [PMID: 33238549 PMCID: PMC7700215 DOI: 10.3390/ijms21228865] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 11/13/2020] [Accepted: 11/20/2020] [Indexed: 12/25/2022] Open
Abstract
Sarcopenia that occurs with advancing age is characterized by a gradual loss of muscle protein component due to the activation of catabolic pathways, increased level of inflammation, and mitochondrial dysfunction. Experimental evidence demonstrates that several physio-pathological processes involved in the onset of sarcopenia may be counteracted by the intake of specific amino acids or antioxidant molecules, suggesting that diet may represent an effective strategy for improving the anabolic response of muscle during aging. The non-essential amino acid taurine is highly expressed in several mammalian tissues, including skeletal muscle where it is involved in the ion channel regulation, in the modulation of intracellular calcium concentration, and where it plays an important role as an antioxidant and anti-inflammatory factor. Here, with the purpose to reproduce the chronic low-grade inflammation characteristics of senescent muscle in an in vitro system, we exploited the role of Tumor Necrosis Factor α (TNF) and we analyzed the effect of taurine in the modulation of different signaling pathways known to be dysregulated in sarcopenia. We demonstrated that the administration of high levels of taurine in myogenic L6 cells stimulates the differentiation process by downregulating the expression of molecules involved in inflammatory pathways and modulating processes such as autophagy and apoptosis. Although further studies are currently ongoing in our laboratory to better elucidate the molecular mechanisms responsible for the positive effect of taurine on myogenic differentiation, this study suggests that taurine supplementation may represent a strategy to delay the loss of mass and functionality characteristic of senescent muscles.
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25
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Fukuma Y, Inui T, Imashiro C, Kurashina Y, Takemura K. Homogenization of initial cell distribution by secondary flow of medium improves cell culture efficiency. PLoS One 2020; 15:e0235827. [PMID: 32667933 PMCID: PMC7983807 DOI: 10.1371/journal.pone.0235827] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Accepted: 06/23/2020] [Indexed: 11/30/2022] Open
Abstract
Homogenization of the initial cell distribution is essential for effective cell
development. However, there are few previous reports on efficient cell seeding
methods, even though the initial cell distribution has a large effect on cell
proliferation. Dense cell regions have an inverse impact on cell development,
known as contact inhibition. In this study, we developed a method to homogenize
the cell seeding density using secondary flow, or Ekman transportation, induced
by orbital movement of the culture dish. We developed an orbital shaker device
that can stir the medium in a 35-mm culture dish by shaking the dish along a
circular orbit with 2 mm of eccentricity. The distribution of cells in the
culture dish can be controlled by the rotational speed of the orbital shaker,
enabling dispersion of the initial cell distribution. The experimental results
indicated that the cell density became most homogeneous at 61 rpm. We further
evaluated the cell proliferation after homogenization of the initial cell
density at 61 rpm. The results revealed 36% higher proliferation for the stirred
samples compared with the non-stirred control samples. The present findings
indicate that homogenization of the initial cell density by Ekman transportation
contributes to the achievement of higher cell proliferation.
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Affiliation(s)
- Yuki Fukuma
- School of Science for Open and Environmental Systems, Graduate School of
Science and Technology, Keio University, Yokohama, Kanagawa,
Japan
| | - Takumi Inui
- School of Science for Open and Environmental Systems, Graduate School of
Science and Technology, Keio University, Yokohama, Kanagawa,
Japan
| | - Chikahiro Imashiro
- Department of Mechanical Engineering, Faculty of Science and Technology,
Keio University, Yokohama, Kanagawa, Japan
- Institute of Advanced Biomedical Engineering and Science, Tokyo Women’s
Medical University, Tokyo, Japan
| | - Yuta Kurashina
- Department of Materials Science and Engineering, School of Materials and
Chemical Technology, Tokyo institute of Technology, Yokohama, Kanagawa,
Japan
| | - Kenjiro Takemura
- Department of Mechanical Engineering, Faculty of Science and Technology,
Keio University, Yokohama, Kanagawa, Japan
- * E-mail:
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26
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Pęziński M, Daszczuk P, Pradhan BS, Lochmüller H, Prószyński TJ. An improved method for culturing myotubes on laminins for the robust clustering of postsynaptic machinery. Sci Rep 2020; 10:4524. [PMID: 32161296 PMCID: PMC7066178 DOI: 10.1038/s41598-020-61347-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Accepted: 02/20/2020] [Indexed: 01/03/2023] Open
Abstract
Motor neurons form specialized synapses with skeletal muscle fibers, called neuromuscular junctions (NMJs). Cultured myotubes are used as a simplified in vitro system to study the postsynaptic specialization of muscles. The stimulation of myotubes with the glycoprotein agrin or laminin-111 induces the clustering of postsynaptic machinery that contains acetylcholine receptors (AChRs). When myotubes are grown on laminin-coated surfaces, AChR clusters undergo developmental remodeling to form topologically complex structures that resemble mature NMJs. Needing further exploration are the molecular processes that govern AChR cluster assembly and its developmental maturation. Here, we describe an improved protocol for culturing muscle cells to promote the formation of complex AChR clusters. We screened various laminin isoforms and showed that laminin-221 was the most potent for inducing AChR clusters, whereas laminin-121, laminin-211, and laminin-221 afforded the highest percentages of topologically complex assemblies. Human primary myotubes that were formed by myoblasts obtained from patient biopsies also assembled AChR clusters that underwent remodeling in vitro. Collectively, these results demonstrate an advancement of culturing myotubes that can facilitate high-throughput screening for potential therapeutic targets for neuromuscular disorders.
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Affiliation(s)
- Marcin Pęziński
- Laboratory of Synaptogenesis, Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warsaw, Poland
| | - Patrycja Daszczuk
- Laboratory of Synaptogenesis, Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warsaw, Poland
| | - Bhola Shankar Pradhan
- Laboratory of Synaptogenesis, Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warsaw, Poland.,Łukasiewicz Research Network - PORT Polish Center for Technology Development, Wrocław, Poland
| | - Hanns Lochmüller
- Department of Neuropediatrics and Muscle Disorders, Faculty of Medicine, Medical Centre, University of Freiburg, Freiburg, Germany.,Children's Hospital of Eastern Ontario Research Institute, University of Ottawa, Ottawa, Canada.,Division of Neurology, Department of Medicine, The Ottawa Hospital, Ottawa, Canada
| | - Tomasz J Prószyński
- Laboratory of Synaptogenesis, Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warsaw, Poland. .,Łukasiewicz Research Network - PORT Polish Center for Technology Development, Wrocław, Poland.
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27
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Fang XB, Song ZB, Xie MS, Liu YM, Zhang WX. Synergistic effect of glucocorticoids and IGF-1 on myogenic differentiation through the Akt/GSK-3β pathway in C2C12 myoblasts. Int J Neurosci 2020; 130:1125-1135. [PMID: 32070170 DOI: 10.1080/00207454.2020.1730367] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Purpose: Glucocorticoids are the only therapeutics that can delay the progression of Duchenne musculardystrophy (DMD), the most prevalent type of inherited neuromuscular disorder in males. However, beyond theiranti-inflammatory effects, glucocorticoids have other underlying mechanisms that remain unclear. Moreover, muscleand circulating levels of insulin growth factor-1 (IGF-1) often decrease in response to glucocorticoids. Therefore, wehypothesized that glucocorticoids, either alone or in combination with IGF-1, can improve myogenic differentiation.Materials and methods: Established C2C12 myoblasts were employed as an in vitro model of myogenic differentiation,and myogenic differentiation markers, as assessed by Western blot (myogenin, MyoD, and MyHC protein expression),cellular morphology analysis (fusion index) and RT-PCR (MCK mRNA expression), were measured.Results: Myogenic differentiation markers were increased by glucocorticoid treatment. Furthermore, this effect was furtherenhanced by IGF-1, and these results suggest that glucocorticoids, either alone or together with IGF-1, can promotemyogenic differentiation. Akt and GSK-3β play important roles in myogenic differentiation. Interestingly, the levels ofboth phosphorylated Ser473-Akt and phosphorylated Ser9-GSK-3β were increased by glucocorticoid and IGF-1 cotreatment.Pharmacological manipulation with LY294002 and LiCl was employed to inhibit Akt and GSK-3β, respectively.We found that cellular differentiability was inhibited by LY294002 and enhanced by LiCl, indicating that theAkt/GSK-3β signaling pathway is activated by glucocorticoid and IGF-1 treatment to promote myogenic differentiation.Conclusions: Glucocorticoids together with IGF-1 promote myogenic differentiation through the Akt/GSK-3βpathway. Thus, these results further our knowledge of myogenic differentiation and may offer a potential alternativestrategy for DMD treatment based on glucocorticoid and IGF-1.
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Affiliation(s)
- Xiao-Bo Fang
- Department of Neurology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Zu-Biao Song
- Department of Neurology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Meng-Shu Xie
- Department of Neurology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Yan-Mei Liu
- Department of Neurology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Wei-Xi Zhang
- Department of Neurology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
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Novel Fluorescent Mitochondria-Targeted Probe MitoCLox Reports Lipid Peroxidation in Response to Oxidative Stress In Vivo. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:3631272. [PMID: 32104531 PMCID: PMC7035557 DOI: 10.1155/2020/3631272] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Accepted: 11/22/2019] [Indexed: 12/12/2022]
Abstract
A new mitochondria-targeted probe MitoCLox was designed as a starting compound for a series of probes sensitive to cardiolipin (CL) peroxidation. Fluorescence microscopy reported selective accumulation of MitoCLox in mitochondria of diverse living cell cultures and its oxidation under stress conditions, particularly those known to cause a selective cardiolipin oxidation. Ratiometric fluorescence measurements using flow cytometry showed a remarkable dependence of the MitoCLox dynamic range on the oxidation of the sample. Specifically, MitoCLox oxidation was induced by low doses of hydrogen peroxide or organic hydroperoxide. The mitochondria-targeted antioxidant 10-(6'-plastoquinonyl)decyltriphenyl-phosphonium (SkQ1), which was shown earlier to selectively protect cardiolipin from oxidation, prevented hydrogen peroxide-induced MitoCLox oxidation in the cells. Concurrent tracing of MitoCLox oxidation and membrane potential changes in response to hydrogen peroxide addition showed that the oxidation of MitoCLox started without a delay and was complete during the first hour, whereas the membrane potential started to decay after 40 minutes of incubation. Hence, MitoCLox could be used for splitting the cell response to oxidative stress into separate steps. Application of MitoCLox revealed heterogeneity of the mitochondrial population; in living endothelial cells, a fraction of small, rounded mitochondria with an increased level of lipid peroxidation were detected near the nucleus. In addition, the MitoCLox staining revealed a specific fraction of cells with an increased level of oxidized lipids also in the culture of human myoblasts. The fraction of such cells increased in high-density cultures. These specific conditions correspond to the initiation of spontaneous myogenesis in vitro, which indicates that oxidation may precede the onset of myogenic differentiation. These data point to a possible participation of oxidized CL in cell signalling and differentiation.
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29
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Chen X, Du W, Cai Z, Ji S, Dwivedi M, Chen J, Zhao G, Chu J. Uniaxial Stretching of Cell-Laden Microfibers for Promoting C2C12 Myoblasts Alignment and Myofibers Formation. ACS APPLIED MATERIALS & INTERFACES 2020; 12:2162-2170. [PMID: 31856565 DOI: 10.1021/acsami.9b22103] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Fiber-shaped cellular constructs have attracted increasing attention in the regeneration of blood vessels, nerve networks, and skeletal myofibers. Nevertheless, the generation of functional fiber-shaped cellular constructs suffers from limited appropriate microfiber-based fabrication approaches and the maintenance of regenerated tissue functions. Herein, we demonstrate a silicone-tube-based coagulant bath free method to fabricate tens of centimeters long cell-laden microfibers using single UV exposure without pretreatment of nozzles or microchannels. By modulating the exposure time, the gelatin methacrylate microfibers with tissue-like microstructures and mechanical properties are obtained. Then, a culture system integrated with a pillar well-array based stretching device is used to apply uniaxial stretching with various strain ratios in situ to cell-laden microfibers in a 60 mm petri dish. Cells with improved spreading, elongation, and alignment are obtained under uniaxial stretching. Moreover, the promotional effects of uniaxial stretching on the differentiation of C2C12 myoblasts, the formation, and contractility of myofibers become more pronounced with increasing strain ratio and achieve saturation level as strain ratio up to ∼35%.
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Affiliation(s)
| | - Wenqiang Du
- Nationwide Children's Hospital , Columbus , Ohio 43205 , United States
- The Ohio State University College of Medicine , Columbus , Ohio 43205 , United States
| | | | | | | | - Jianfeng Chen
- Department of Mechanics Engineering , Nanchang University , Nanchang , Jiangxi 330031 , China
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30
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Christensen RK, von Halling Laier C, Kiziltay A, Wilson S, Larsen NB. 3D Printed Hydrogel Multiassay Platforms for Robust Generation of Engineered Contractile Tissues. Biomacromolecules 2019; 21:356-365. [PMID: 31860278 DOI: 10.1021/acs.biomac.9b01274] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
We present a method for reproducible manufacture of multiassay platforms with tunable mechanical properties for muscle tissue strip analysis. The platforms result from stereolithographic 3D printing of low protein-binding poly(ethylene glycol) diacrylate (PEGDA) hydrogels. Contractile microtissues have previously been engineered by immobilizing suspended cells in a confined hydrogel matrix with embedded anchoring cantilevers to facilitate muscle tissue strip formation. The 3D shape and mechanical properties of the confinement and the embedded cantilevers are critical for the tissue robustness. High-resolution 3D printing of PEGDA hydrogels offers full design freedom to engineer cantilever stiffness, while minimizing unwanted cell attachment. We demonstrate the applicability by generating suspended muscle tissue strips from C2C12 mouse myoblasts in a compliant fibrin-based hydrogel matrix. The full design freedom allows for new platform geometries that reduce local stress in the matrix and tissue, thus, reducing the risk of tissue fracture.
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Affiliation(s)
- Rie Kjær Christensen
- Department of Health Technology , DTU Health Tech, Technical University of Denmark , Ørsteds Plads 345C , 2800 Kgs. Lyngby , Denmark.,Sophion Bioscience A/S , Baltorpvej 154 , 2750 Ballerup , Denmark
| | - Christoffer von Halling Laier
- Department of Health Technology , DTU Health Tech, Technical University of Denmark , Ørsteds Plads 345C , 2800 Kgs. Lyngby , Denmark
| | - Aysel Kiziltay
- Department of Health Technology , DTU Health Tech, Technical University of Denmark , Ørsteds Plads 345C , 2800 Kgs. Lyngby , Denmark
| | - Sandra Wilson
- Sophion Bioscience A/S , Baltorpvej 154 , 2750 Ballerup , Denmark
| | - Niels Bent Larsen
- Department of Health Technology , DTU Health Tech, Technical University of Denmark , Ørsteds Plads 345C , 2800 Kgs. Lyngby , Denmark
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31
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Vieira PDC, Waghabi MC, Beghini DG, Predes D, Abreu JG, Mouly V, Butler-Browne G, Barbosa HS, Adesse D. Toxoplasma gondii Impairs Myogenesis in vitro, With Changes in Myogenic Regulatory Factors, Altered Host Cell Proliferation and Secretory Profile. Front Cell Infect Microbiol 2019; 9:395. [PMID: 31828046 PMCID: PMC6890860 DOI: 10.3389/fcimb.2019.00395] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Accepted: 11/04/2019] [Indexed: 01/06/2023] Open
Abstract
Toxoplasma gondii is the causative agent of toxoplasmosis, a parasitic disease with a wide global prevalence. The parasite forms cysts in skeletal muscle cells and neurons, although no evident association with inflammatory infiltrates has been typically found. We studied the impact of T. gondii infection on the myogenic program of mouse skeletal muscle cells (SkMC). The C2C12 murine myoblast cell line was infected with T. gondii tachyzoites (ME49 strain) for 24 h followed by myogenic differentiation induction. T. gondii infection caused a general decrease in myotube differentiation, fusion and maturation, along with decreased expression of myosin heavy chain. The expression of Myogenic Regulatory Factors Myf5, MyoD, Mrf4 and myogenin was modulated by the infection. Infected cultures presented increased proliferation rates, as assessed by Ki67 immunostaining, whereas neither host cell lysis nor apoptosis were significantly augmented in infected dishes. Cytokine Bead Array indicated that IL-6 and MCP-1 were highly increased in the medium from infected cultures, whereas TGF-β1 was consistently decreased. Inhibition of the IL-6 receptor or supplementation with recombinant TGF-β failed to reverse the deleterious effects caused by the infection. However, conditioned medium from infected cultures inhibited myogenesis in C2C12 cells. Activation of the Wnt/β-catenin pathway was impaired in T. gondii-infected cultures. Our data indicate that T. gondii leads SkMCs to a pro-inflammatory phenotype, leaving cells unresponsive to β-catenin activation, and inhibition of the myogenic differentiation program. Such deregulation may suggest muscle atrophy and molecular mechanisms similar to those involved in myositis observed in human patients.
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Affiliation(s)
| | - Mariana Caldas Waghabi
- Laboratório de Genômica Funcional e Bioinformática, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro, Brazil
| | - Daniela Gois Beghini
- Laboratório de Inovação em Terapias, Ensino e Bioprodutos, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro, Brazil
| | - Danilo Predes
- Laboratório de Embriologia de Vertebrados, Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Jose Garcia Abreu
- Laboratório de Embriologia de Vertebrados, Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Vincent Mouly
- Sorbonne Université, INSERM, Institut de Myologie, Myology Research Center UMRS974, Paris, France
| | - Gillian Butler-Browne
- Sorbonne Université, INSERM, Institut de Myologie, Myology Research Center UMRS974, Paris, France
| | - Helene Santos Barbosa
- Laboratório de Biologia Estrutural, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro, Brazil
| | - Daniel Adesse
- Laboratório de Biologia Estrutural, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro, Brazil
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32
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Scully D, Sfyri P, Wilkinson HN, Acebes-Huerta A, Verpoorten S, Muñoz-Turrillas MC, Parnell A, Patel K, Hardman MJ, Gutiérrez L, Matsakas A. Optimising platelet secretomes to deliver robust tissue-specific regeneration. J Tissue Eng Regen Med 2019; 14:82-98. [PMID: 31603629 DOI: 10.1002/term.2965] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Revised: 09/04/2019] [Accepted: 09/09/2019] [Indexed: 12/19/2022]
Abstract
Promoting cell proliferation is the cornerstone of most tissue regeneration therapies. As platelet-based applications promote cell division and can be customised for tissue-specific efficacy, this makes them strong candidates for developing novel regenerative therapies. Therefore, the aim of this study was to determine if platelet releasate could be optimised to promote cellular proliferation and differentiation of specific tissues. Growth factors in platelet releasate were profiled for physiological and supraphysiological platelet concentrations. We analysed the effect of physiological and supraphysiological releasate on C2C12 skeletal myoblasts, H9C2 rat cardiomyocytes, human dermal fibroblasts (HDF), HaCaT keratinocytes, and chondrocytes. Cellular proliferation and differentiation were assessed through proliferation assays, mRNA, and protein expression. We show that supraphysiological releasate is not simply a concentrated version of physiological releasate. Physiological releasate promoted C2C12, HDF, and chondrocyte proliferation with no effect on H9C2 or HaCaT cells. Supraphysiological releasate induced stronger proliferation in C2C12 and HDF cells compared with physiological releasate. Importantly, supraphysiological releasate induced proliferation of H9C2 cells. The proliferative effects of skeletal and cardiac muscle cells were in part driven by vascular endothelial growth factor alpha. Furthermore, supraphysiological releasate induced differentiation of H9C2 and C2C12, HDF, and keratinocytes. This study provides insights into the ability of releasate to promote muscle, heart, skin, and cartilage cell proliferation and differentiation and highlights the importance of optimising releasate composition for tissue-specific regeneration.
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Affiliation(s)
- David Scully
- Molecular Physiology Laboratory, Centre for Atherothrombosis & Metabolic Disease, Hull York Medical School, University of Hull, Hull, UK
| | - Peggy Sfyri
- Molecular Physiology Laboratory, Centre for Atherothrombosis & Metabolic Disease, Hull York Medical School, University of Hull, Hull, UK
| | - Holly N Wilkinson
- Molecular Physiology Laboratory, Centre for Atherothrombosis & Metabolic Disease, Hull York Medical School, University of Hull, Hull, UK
| | - Andrea Acebes-Huerta
- Platelet Research Lab, Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Oviedo, Spain
| | - Sandrine Verpoorten
- Molecular Physiology Laboratory, Centre for Atherothrombosis & Metabolic Disease, Hull York Medical School, University of Hull, Hull, UK
| | - María Carmen Muñoz-Turrillas
- Platelet Research Lab, Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Oviedo, Spain.,Centro Comunitario de Sangre y Tejidos, de Asturias, Oviedo, Spain
| | - Andrew Parnell
- School of Biological Sciences, University of Reading, Reading, UK
| | - Ketan Patel
- School of Biological Sciences, University of Reading, Reading, UK
| | - Matthew J Hardman
- Molecular Physiology Laboratory, Centre for Atherothrombosis & Metabolic Disease, Hull York Medical School, University of Hull, Hull, UK
| | - Laura Gutiérrez
- Platelet Research Lab, Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Oviedo, Spain.,Department of Medicine, University of Oviedo, Oviedo, Spain
| | - Antonios Matsakas
- Molecular Physiology Laboratory, Centre for Atherothrombosis & Metabolic Disease, Hull York Medical School, University of Hull, Hull, UK
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33
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Shin HY, Lee SJ, Seo HW, Kim MY, Intisar A, Yea K, Cho SC, Lee YI, Kim YZ, Gurel O, van Noort D, Park SC, Kim MS. Cell Seeding Technology for Microarray-Based Quantitative Human Primary Skeletal Muscle Cell Analysis. Anal Chem 2019; 91:14214-14219. [PMID: 31631648 DOI: 10.1021/acs.analchem.9b03722] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Pipetting techniques play a crucial role in obtaining reproducible and reliable results, especially when seeding cells on small target areas, such as on microarrays, biochips or microfabricated cell culture systems. For very rare cells, such as human primary skeletal muscle cells (skMCs), manual (freehand) cell seeding techniques invariably result in nonuniform cell spreading and heterogeneous cell densities, giving rise to undesirable variations in myogenesis and differentiation. To prevent such technique-dependent variation, we have designed and fabricated a simple, low-cost pipet guidance device (PGD), and holder that works with hand-held pipettes. This work validates the accuracy and reproducibility of the PGD platform and compares its effectiveness with manual and robotic seeding techniques. The PGD system ensures reproducibility of cell seeding, comparable to that of more expensive robotic dispensing systems, resulting in a high degree of cell uniformity and homogeneous cell densities, while also enabling cell community studies. As compared to freehand pipetting, PGD-assisted seeding of C2C12 mouse myoblasts showed 5.3 times more myotube formation and likewise myotubes derived from PGD-seeded human primary skMCs were 3.6 times thicker and 2.2 times longer. These results show that this novel, yet simple PGD-assisted pipetting technique provides precise cell seeding on small targets, ensuring reproducible and reliable high-throughput cell assays.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Young Zoon Kim
- Division of Neurooncology and Department of Neurosurgery, Samsung Changwon Hospital , Sungkyunkwan University School of Medicine , Changwon , Republic of Korea
| | | | - Danny van Noort
- Division of Biotechnology, IFM , Linköping University , Linköping 58183 , Sweden
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34
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Sprott MR, Gallego‐Ferrer G, Dalby MJ, Salmerón‐Sánchez M, Cantini M. Functionalization of PLLA with Polymer Brushes to Trigger the Assembly of Fibronectin into Nanonetworks. Adv Healthc Mater 2019; 8:e1801469. [PMID: 30609243 DOI: 10.1002/adhm.201801469] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Revised: 12/17/2018] [Indexed: 01/13/2023]
Abstract
Poly-l-lactic acid (PLLA) has been used as a biodegradable polymer for many years; the key characteristics of this polymer make it a versatile and useful resource for regenerative medicine. However, it is not inherently bioactive. Thus, here, a novel process is presented to functionalize PLLA surfaces with poly(ethyl acrylate) (PEA) brushes to provide biological functionality through PEA's ability to induce spontaneous organization of the extracellular matrix component fibronectin (FN) into physiological-like nanofibrils. This process allows control of surface biofunctionality while maintaining PLLA bulk properties (i.e., degradation profile, mechanical strength). The new approach is based on surface-initiated atomic transfer radical polymerization, which achieves a molecularly thin coating of PEA on top of the underlying PLLA. Beside surface characterization via atomic force microscopy, X-ray photoelectron spectroscopy and water contact angle to measure PEA grafting, the biological activity of this surface modification is investigated. PEA brushes trigger FN organization into nanofibrils, which retain their ability to enhance adhesion and differentiation of C2C12 cells. The results demonstrate the potential of this technology to engineer controlled microenvironments to tune cell fate via biologically active surface modification of an otherwise bioinert biodegradable polymer, gaining wide use in tissue engineering applications.
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Affiliation(s)
- Mark Robert Sprott
- Centre for the Cellular MicroenvironmentUniversity of Glasgow Glasgow G12 8LT UK
| | - Gloria Gallego‐Ferrer
- Center for Biomaterials and Tissue EngineeringUniversitat Politècnica de València Valencia 46022 Spain
- Biomedical Research Networking Center in BioengineeringBiomaterials and Nanomedicine (CIBER‐BBN) Valencia 46022 Spain
| | - Matthew J. Dalby
- Centre for the Cellular MicroenvironmentUniversity of Glasgow Glasgow G12 8LT UK
| | | | - Marco Cantini
- Centre for the Cellular MicroenvironmentUniversity of Glasgow Glasgow G12 8LT UK
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35
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Silva Garcia JM, Panitch A, Calve S. Functionalization of hyaluronic acid hydrogels with ECM-derived peptides to control myoblast behavior. Acta Biomater 2019; 84:169-179. [PMID: 30508655 DOI: 10.1016/j.actbio.2018.11.030] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Revised: 10/31/2018] [Accepted: 11/19/2018] [Indexed: 01/07/2023]
Abstract
Volumetric muscle loss (VML) occurs when skeletal muscle injury is too large for the body to fully self-repair. Typically, fibrotic tissue fills the void, which reduces muscle functionality and limb movement. Although a wide variety of natural and synthetic scaffolds have been studied with the purpose of providing the appropriate structural support, to date no scaffold has significantly restored muscle functionality after VML. Satellite cells, adult stem cells within the muscle capable of restoring smaller injuries, are sensitive to the stiffness and composition of the surrounding environment. Scaffolds that only address structural support are not sufficient to restore functionality and instead need to be designed to both promote satellite cell activation and prevent excessive fibroblast recruitment. The objective of this study was to design a scaffold that mimicked the regenerative environment and determine how the biomechanical properties differentially influence myogenic precursor and connective tissue cells. One of the main extracellular matrix (ECM) molecules upregulated during regeneration is hyaluronic acid (HA). Therefore, thiol-modified HA and poly(ethylene glycol) diacrylate hydrogels were generated and functionalized with peptides based on ECM known to influence regeneration, including fibronectin, laminin and tenascin-C. Scaffolds with different stiffness were created by varying HA content. The influence of HA stiffness and peptide functionalization on myogenic precursor and connective tissue cell proliferation, migration and gene expression was quantified. Our results indicated that HA hydrogels functionalized with the laminin peptide, IKVAV, show potential due to the enhanced promotion of myogenic cell behaviors including migration, proliferation and an increase in relevant transcription factors. STATEMENT OF SIGNIFICANCE: The goal of this study was to identify hyaluronic acid (HA) hydrogels with peptide and stiffness combinations that will direct muscle-derived cells towards regenerating phenotypes. While the interaction of skeletal muscle with RGD-functionalized HA hydrogels has been investigated, none of the other peptides described in this study had been used in the context of HA-based scaffolds and skeletal muscle-derived cells. Notably, the response of cells to variations in mechanics was dependent on ECM coating and lineage. The 3% HA functionalized with the laminin peptide, IKVAV, showed the most promise for future in vivo studies, as these hydrogels best promoted myoblast cell proliferation, attachment and spreading, enhanced migration over connective tissue cells and upregulated transcription factors associated with activated satellite cells.
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36
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Kim S, Jang LK, Jang M, Lee S, Hardy JG, Lee JY. Electrically Conductive Polydopamine-Polypyrrole as High Performance Biomaterials for Cell Stimulation in Vitro and Electrical Signal Recording in Vivo. ACS APPLIED MATERIALS & INTERFACES 2018; 10:33032-33042. [PMID: 30192136 DOI: 10.1021/acsami.8b11546] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Conductive polymers (CPs) such as polypyrrole (PPY) are emerging biomaterials for use as scaffolds and bioelectrodes which interact with biological systems electrically. Still, more electrically conductive and biologically interactive CPs are required to develop high performance biomaterials and medical devices. In this study, in situ electrochemical copolymerization of polydopamine (PDA) and PPY were performed for electrode modification. Their material and biological properties were characterized using multiple techniques. The electrical properties of electrodes coated with PDA/PPY were superior to electrodes coated with PPY alone. The growth and differentiation of C2C12 myoblasts and PC12 neuronal cells on PDA/PPY was enhanced compared to PPY. Electrical stimulation of PC12 cells on PDA/PPY further promoted neuritogenesis. In vivo electromyography signal measurements demonstrated more sensitive signals from tibia muscles when using PDA/PPY-coated electrodes than bare or PPY-coated electrodes, revealing PDA/PPY to be a high-performance biomaterial with potential for various biomedical applications.
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Affiliation(s)
| | | | | | | | - John George Hardy
- Department of Chemistry and Materials Science Institute , Lancaster University , Lancaster , Lancashire LA1 4YB , U.K
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37
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Ragab N, Viehweger F, Bauer J, Geyer N, Yang M, Seils A, Belharazem D, Brembeck FH, Schildhaus HU, Marx A, Hahn H, Simon-Keller K. Canonical WNT/β-Catenin Signaling Plays a Subordinate Role in Rhabdomyosarcomas. Front Pediatr 2018; 6:378. [PMID: 30568936 PMCID: PMC6290061 DOI: 10.3389/fped.2018.00378] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Accepted: 11/15/2018] [Indexed: 12/15/2022] Open
Abstract
The development of skeletal muscle from immature precursors is partially driven by canonical WNT/β-catenin signaling. Rhabdomyosarcomas (RMS) are immature skeletal muscle-like, highly lethal cancers with a variably pronounced blockade of muscle differentiation. To investigate whether canonical β-catenin signaling in RMS is involved in differentiation and aggressiveness of RMS, we analyzed the effects of WNT3A and of a siRNA-mediated or pharmacologically induced β-catenin knock-down on proliferation, apoptosis and differentiation of embryonal and alveolar RMS cell lines. While the canonical WNT pathway was maintained in all cell lines as shown by WNT3A induced AXIN expression, more distal steps including transcriptional activation of its key target genes were consistently impaired. In addition, activation or inhibition of canonical WNT/β-catenin only moderately affected proliferation, apoptosis or myodifferentiation of the RMS tumor cells and a conditional knockout of β-catenin in RMS of Ptch del/+ mice did not alter RMS incidence or multiplicity. Together our data indicates a subordinary role of the canonical WNT/β-catenin signaling for RMS proliferation, apoptosis or differentiation and thus aggressiveness of this malignant childhood tumor.
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Affiliation(s)
- Nada Ragab
- Institute of Pathology, University Medical Center Mannheim, University of Heidelberg, Mannheim, Germany
| | - Florian Viehweger
- Institute of Pathology, University Medical Center Mannheim, University of Heidelberg, Mannheim, Germany.,Institute of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Julia Bauer
- Institute of Human Genetics, University Medical Center Göttingen, Göttingen, Germany
| | - Natalie Geyer
- Institute of Human Genetics, University Medical Center Göttingen, Göttingen, Germany
| | - Mingya Yang
- Institute of Pathology, University Medical Center Mannheim, University of Heidelberg, Mannheim, Germany
| | - Anna Seils
- Institute of Pathology, University Medical Center Mannheim, University of Heidelberg, Mannheim, Germany
| | - Djeda Belharazem
- Institute of Pathology, University Medical Center Mannheim, University of Heidelberg, Mannheim, Germany
| | - Felix H Brembeck
- Tumor Biology and Signal Transduction, Department of Hematology and Medical Oncology, University Medical Center Göttingen, Göttingen, Germany
| | | | - Alexander Marx
- Institute of Pathology, University Medical Center Mannheim, University of Heidelberg, Mannheim, Germany
| | - Heidi Hahn
- Institute of Human Genetics, University Medical Center Göttingen, Göttingen, Germany
| | - Katja Simon-Keller
- Institute of Pathology, University Medical Center Mannheim, University of Heidelberg, Mannheim, Germany
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38
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Tang Z, Qiu H, Luo L, Liu N, Zhong J, Kang K, Gou D. miR-34b Modulates Skeletal Muscle Cell Proliferation and Differentiation. J Cell Biochem 2017; 118:4285-4295. [PMID: 28422320 DOI: 10.1002/jcb.26079] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2017] [Accepted: 04/18/2017] [Indexed: 12/22/2022]
Abstract
Myogenesis involves myoblast proliferation and differentiation to myocytes, followed by fusion and hypertrophy to form myotubes during muscle development. Increasing evidence showed that microRNAs (miRNAs) play important roles in the regulation of myogenesis. We have previously revealed that miR-34b is steadily increased during this process. This miRNA regulates differentiation in various cell types, though its function in myogenesis remains to be elucidated. In this study, we show that miR-34b represses muscle cell proliferation and promotes myotube formation. Our quantitative iTRAQ-based proteomic analysis reveals 97 proteins are regulated by miR-34b in mouse myoblast C2C12. We identified that miR-34b targets 14-3-3 protein gamma, adenosylhomocysteinase and nucleolin by binding to their 3'UTR. Further analysis of these proteins expression patterns show that nucleolin is a cognate target of miR-34b during myogenic differentiation. Here, we proved that a moderate reduction of nucleolin in cells enhanced the myotube formation. However, nucleolin is required for myogenesis, as cells with low levels of nucleolin reduced cell proliferation rate and are unable to differentiate. Our data demonstrated that nucleolin regulates myogenesis in a protein-abundance-dependent manner. J. Cell. Biochem. 118: 4285-4295, 2017. © 2017 Wiley Periodicals, Inc.
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Affiliation(s)
- Zhixiong Tang
- Shenzhen Key Laboratory of Microbial Genetic Engineering, College of Life Sciences, Shenzhen University, Shenzhen, Guangdong, 518060, China
| | - Huiling Qiu
- Shenzhen Key Laboratory of Microbial Genetic Engineering, College of Life Sciences, Shenzhen University, Shenzhen, Guangdong, 518060, China
- Biomedical Engineering, Health and Environmental Engineering, Shenzhen Technology University, Shenzhen, Guangdong, 518000, China
| | - Lan Luo
- Shenzhen Key Laboratory of Microbial Genetic Engineering, College of Life Sciences, Shenzhen University, Shenzhen, Guangdong, 518060, China
| | - Nian Liu
- Shenzhen Key Laboratory of Microbial Genetic Engineering, College of Life Sciences, Shenzhen University, Shenzhen, Guangdong, 518060, China
| | - Jiasheng Zhong
- Shenzhen Key Laboratory of Microbial Genetic Engineering, College of Life Sciences, Shenzhen University, Shenzhen, Guangdong, 518060, China
| | - Kang Kang
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Shenzhen University Health Sciences Center, Shenzhen, 518000, China
| | - Deming Gou
- Shenzhen Key Laboratory of Microbial Genetic Engineering, College of Life Sciences, Shenzhen University, Shenzhen, Guangdong, 518060, China
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Costantini M, Testa S, Mozetic P, Barbetta A, Fuoco C, Fornetti E, Tamiro F, Bernardini S, Jaroszewicz J, Święszkowski W, Trombetta M, Castagnoli L, Seliktar D, Garstecki P, Cesareni G, Cannata S, Rainer A, Gargioli C. Microfluidic-enhanced 3D bioprinting of aligned myoblast-laden hydrogels leads to functionally organized myofibers in vitro and in vivo. Biomaterials 2017; 131:98-110. [DOI: 10.1016/j.biomaterials.2017.03.026] [Citation(s) in RCA: 155] [Impact Index Per Article: 22.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2016] [Revised: 03/13/2017] [Accepted: 03/20/2017] [Indexed: 12/13/2022]
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MicroRNA-17-92 regulates myoblast proliferation and differentiation by targeting the ENH1/Id1 signaling axis. Cell Death Differ 2016; 23:1658-69. [PMID: 27315298 PMCID: PMC5041193 DOI: 10.1038/cdd.2016.56] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2015] [Revised: 05/19/2015] [Accepted: 05/20/2016] [Indexed: 12/21/2022] Open
Abstract
Myogenesis is an important biological process that occurs during both skeletal muscle regeneration and postnatal growth. Growing evidence points to the critical role of microRNAs (miRNAs) in myogenesis. Our analysis of miRNA expression patterns reveal that miRNAs of miR-17-92 cluster are dramatically downregulated in C2C12 cells after myogenesis stimulation, are strongly induced in mouse skeletal muscle after injury and decrease steadily thereafter and are downregulated with age in skeletal muscle during mouse and porcine postnatal growth. However, their roles in muscle developmental processes remain elusive. We show that the miR-17-92 cluster promotes mouse myoblast proliferation but inhibits myotube formation. miR-17, -20a and -92a target the actin-associated protein enigma homolog 1 (ENH1). The silencing of ENH1 increased the nuclear accumulation of the inhibitor of differentiation 1 (Id1) and represses myogenic differentiation. Furthermore, the injection of adenovirus expressing miR-20a into the tibialia anterior muscle downregulates ENH1 and delays regeneration. In addition, the downregulation of miR-17-92 during myogenesis is transcriptionally regulated by E2F1. Overall, our results reveal a E2F1/miR-17-92/ENH1/Id1 regulatory axis during myogenesis.
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Poveda-Reyes S, Moulisova V, Sanmartín-Masiá E, Quintanilla-Sierra L, Salmerón-Sánchez M, Ferrer GG. Gelatin-Hyaluronic Acid Hydrogels with Tuned Stiffness to Counterbalance Cellular Forces and Promote Cell Differentiation. Macromol Biosci 2016; 16:1311-24. [DOI: 10.1002/mabi.201500469] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2015] [Revised: 03/29/2016] [Indexed: 12/30/2022]
Affiliation(s)
- Sara Poveda-Reyes
- Center for Biomaterials and Tissue Engineering (CBIT); Universitat Politècnica de València; Valencia 46022
| | - Vladimira Moulisova
- Division of Biomedical Engineering; School of Engineering; University of Glasgow; Glasgow G12 8QQ UK
| | - Esther Sanmartín-Masiá
- Center for Biomaterials and Tissue Engineering (CBIT); Universitat Politècnica de València; Valencia 46022
| | - Luis Quintanilla-Sierra
- BIOFORGE Group; Centro de Investigación Científica y Desarrollo Tecnológico; Campus de Miguel Delibes; Universidad de Valladolid; Valladolid 47011 Spain
| | - Manuel Salmerón-Sánchez
- Division of Biomedical Engineering; School of Engineering; University of Glasgow; Glasgow G12 8QQ UK
| | - Gloria Gallego Ferrer
- Center for Biomaterials and Tissue Engineering (CBIT); Universitat Politècnica de València; Valencia 46022
- Biomedical Research Networking Center in Bioengineering; Biomaterials and Nanomedicine (CIBER-BBN); Valencia 46022 Spain
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Lau KM, Gong AGW, Xu ML, Lam CTW, Zhang LML, Bi CWC, Cui D, Cheng AWM, Dong TTX, Tsim KWK, Lin H. Transcriptional activity of acetylcholinesterase gene is regulated by DNA methylation during C2C12 myogenesis. Brain Res 2016; 1642:114-123. [PMID: 27021952 DOI: 10.1016/j.brainres.2016.03.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Revised: 02/25/2016] [Accepted: 03/15/2016] [Indexed: 12/26/2022]
Abstract
The expression of acetylcholinesterase (AChE), an enzyme hydrolyzes neurotransmitter acetylcholine at vertebrate neuromuscular junction, is regulated during myogenesis, indicating the significance of muscle intrinsic factors in controlling the enzyme expression. DNA methylation is essential for temporal control of myogenic gene expression during myogenesis; however, its role in AChE regulation is not known. The promoter of vertebrate ACHE gene carries highly conserved CG-rich regions, implying its likeliness to be methylated for epigenetic regulation. A DNA methyltransferase inhibitor, 5-azacytidine (5-Aza), was applied onto C2C12 cells throughout the myotube formation. When DNA methylation was inhibited, the promoter activity, transcript expression and enzymatic activity of AChE were markedly increased after day 3 of differentiation, which indicated the putative role of DNA methylation. By bisulfite pyrosequencing, the overall methylation rate was found to peak at day 3 during C2C12 cell differentiation; a SP1 site located at -1826bp upstream of mouse ACHE gene was revealed to be heavily methylated. The involvement of transcriptional factor SP1 in epigenetic regulation of AChE was illustrated here: (i) the SP1-driven transcriptional activity was increased in 5-Aza-treated C2C12 culture; (ii) the binding of SP1 onto the SP1 site of ACHE gene was fully blocked by the DNA methylation; and (iii) the sequence flanking SP1 sites of ACHE gene was precipitated by chromatin immuno-precipitation assay. The findings suggested the role of DNA methylation on AChE transcriptional regulation and provided insight in elucidating the DNA methylation-mediated regulatory mechanism on AChE expression during muscle differentiation.
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Affiliation(s)
- Kei M Lau
- Division of Life Science and Center of Chinese Medicine, The Hong Kong University of Science and Technology, Clear Water Bay Road, Hong Kong, China
| | - Amy G W Gong
- Division of Life Science and Center of Chinese Medicine, The Hong Kong University of Science and Technology, Clear Water Bay Road, Hong Kong, China
| | - Miranda L Xu
- Division of Life Science and Center of Chinese Medicine, The Hong Kong University of Science and Technology, Clear Water Bay Road, Hong Kong, China
| | - Candy T W Lam
- Division of Life Science and Center of Chinese Medicine, The Hong Kong University of Science and Technology, Clear Water Bay Road, Hong Kong, China
| | - Laura M L Zhang
- Division of Life Science and Center of Chinese Medicine, The Hong Kong University of Science and Technology, Clear Water Bay Road, Hong Kong, China
| | - Cathy W C Bi
- Division of Life Science and Center of Chinese Medicine, The Hong Kong University of Science and Technology, Clear Water Bay Road, Hong Kong, China
| | - D Cui
- Division of Life Science and Center of Chinese Medicine, The Hong Kong University of Science and Technology, Clear Water Bay Road, Hong Kong, China
| | - Anthony W M Cheng
- Division of Life Science and Center of Chinese Medicine, The Hong Kong University of Science and Technology, Clear Water Bay Road, Hong Kong, China
| | - Tina T X Dong
- Division of Life Science and Center of Chinese Medicine, The Hong Kong University of Science and Technology, Clear Water Bay Road, Hong Kong, China
| | - Karl W K Tsim
- Division of Life Science and Center of Chinese Medicine, The Hong Kong University of Science and Technology, Clear Water Bay Road, Hong Kong, China.
| | - Huangquan Lin
- Division of Life Science and Center of Chinese Medicine, The Hong Kong University of Science and Technology, Clear Water Bay Road, Hong Kong, China.
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Panda AC, Abdelmohsen K, Martindale JL, Di Germanio C, Yang X, Grammatikakis I, Noh JH, Zhang Y, Lehrmann E, Dudekula DB, De S, Becker KG, White EJ, Wilson GM, de Cabo R, Gorospe M. Novel RNA-binding activity of MYF5 enhances Ccnd1/Cyclin D1 mRNA translation during myogenesis. Nucleic Acids Res 2016; 44:2393-408. [PMID: 26819411 PMCID: PMC4797292 DOI: 10.1093/nar/gkw023] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2015] [Accepted: 01/08/2016] [Indexed: 01/07/2023] Open
Abstract
Skeletal muscle contains long multinucleated and contractile structures known as muscle fibers, which arise from the fusion of myoblasts into multinucleated myotubes during myogenesis. The myogenic regulatory factor (MRF) MYF5 is the earliest to be expressed during myogenesis and functions as a transcription factor in muscle progenitor cells (satellite cells) and myocytes. In mouse C2C12 myocytes, MYF5 is implicated in the initial steps of myoblast differentiation into myotubes. Here, using ribonucleoprotein immunoprecipitation (RIP) analysis, we discovered a novel function for MYF5 as an RNA-binding protein which associated with a subset of myoblast mRNAs. One prominent MYF5 target was Ccnd1 mRNA, which encodes the key cell cycle regulator CCND1 (Cyclin D1). Biotin-RNA pulldown, UV-crosslinking and gel shift experiments indicated that MYF5 was capable of binding the 3' untranslated region (UTR) and the coding region (CR) of Ccnd1 mRNA. Silencing MYF5 expression in proliferating myoblasts revealed that MYF5 promoted CCND1 translation and modestly increased transcription of Ccnd1 mRNA. Accordingly, overexpressing MYF5 in C2C12 cells upregulated CCND1 expression while silencing MYF5 reduced myoblast proliferation as well as differentiation of myoblasts into myotubes. Moreover, MYF5 silencing reduced myogenesis, while ectopically restoring CCND1 abundance partially rescued the decrease in myogenesis seen after MYF5 silencing. We propose that MYF5 enhances early myogenesis in part by coordinately elevating Ccnd1 transcription and Ccnd1 mRNA translation.
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Affiliation(s)
- Amaresh C Panda
- Laboratory of Genetics, National Institute on Aging, NIH, Baltimore, MD21224, USA
| | - Kotb Abdelmohsen
- Laboratory of Genetics, National Institute on Aging, NIH, Baltimore, MD21224, USA
| | | | - Clara Di Germanio
- Translational Gerontology Branch, National Institute on Aging, NIH, Baltimore, MD 21224, USA Faculty of Veterinary Medicine, University of Teramo, Teramo, Italy
| | - Xiaoling Yang
- Laboratory of Genetics, National Institute on Aging, NIH, Baltimore, MD21224, USA
| | | | - Ji Heon Noh
- Laboratory of Genetics, National Institute on Aging, NIH, Baltimore, MD21224, USA
| | - Yongqing Zhang
- Laboratory of Genetics, National Institute on Aging, NIH, Baltimore, MD21224, USA
| | - Elin Lehrmann
- Laboratory of Genetics, National Institute on Aging, NIH, Baltimore, MD21224, USA
| | - Dawood B Dudekula
- Laboratory of Genetics, National Institute on Aging, NIH, Baltimore, MD21224, USA
| | - Supriyo De
- Laboratory of Genetics, National Institute on Aging, NIH, Baltimore, MD21224, USA
| | - Kevin G Becker
- Laboratory of Genetics, National Institute on Aging, NIH, Baltimore, MD21224, USA
| | - Elizabeth J White
- Department of Biochemistry and Molecular Biology and Marlene and Stewart Greenebaum Cancer Center, University of Maryland School of Medicine, Baltimore, MD 21201, USA
| | - Gerald M Wilson
- Department of Biochemistry and Molecular Biology and Marlene and Stewart Greenebaum Cancer Center, University of Maryland School of Medicine, Baltimore, MD 21201, USA
| | - Rafael de Cabo
- Translational Gerontology Branch, National Institute on Aging, NIH, Baltimore, MD 21224, USA
| | - Myriam Gorospe
- Laboratory of Genetics, National Institute on Aging, NIH, Baltimore, MD21224, USA
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Rico P, Rodrigo-Navarro A, Salmerón-Sánchez M. Borax-Loaded PLLA for Promotion of Myogenic Differentiation. Tissue Eng Part A 2015; 21:2662-72. [PMID: 26239605 DOI: 10.1089/ten.tea.2015.0044] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Boron is an essential metalloid, which plays a key role in plant and animal metabolisms. It has been reported that boron is involved in bone mineralization, has some uses in synthetic chemistry, and its potential has been only recently exploited in medicinal chemistry. However, in the area of tissue engineering, the use of boron is limited to works involving certain bioactive glasses. In this study, we engineer poly(l-lactic acid) (PLLA) substrates with sustained release of boron. Then, we analyze for the first time the uniqueness effects of boron in cell differentiation using murine C2C12 myoblasts and discuss a potential mechanism of action in cooperation with Ca(2+). Our results demonstrate that borax-loaded materials strongly enhance myotube formation at initial steps of myogenesis. Furthermore, we demonstrate that Ca(2+) plays an essential role in combination with borax as chelating or blocking Ca(2+) entry into the cell leads to a detrimental effect on myoblast differentiation observed on borax-loaded materials. This research identifies borax-loaded materials to trigger differentiation mechanisms and it establishes a new tool to engineer microenvironments with applications in regenerative medicine for muscular diseases.
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Affiliation(s)
- Patricia Rico
- 1 Center for Biomaterials and Tissue Engineering (CBIT), Universitat Politècnica de València , Valencia, Spain .,2 Biomedical Research Networking Center in Bioengineering , Biomaterials and Nanomedicine (CIBER-BBN), Valencia, Spain
| | - Aleixandre Rodrigo-Navarro
- 1 Center for Biomaterials and Tissue Engineering (CBIT), Universitat Politècnica de València , Valencia, Spain .,3 Division of Biomedical Engineering, School of Engineering, University of Glasgow , Glasgow, United Kingdom
| | - Manuel Salmerón-Sánchez
- 3 Division of Biomedical Engineering, School of Engineering, University of Glasgow , Glasgow, United Kingdom
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45
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Cerino G, Gaudiello E, Grussenmeyer T, Melly L, Massai D, Banfi A, Martin I, Eckstein F, Grapow M, Marsano A. Three dimensional multi-cellular muscle-like tissue engineering in perfusion-based bioreactors. Biotechnol Bioeng 2015; 113:226-36. [PMID: 26126766 DOI: 10.1002/bit.25688] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2015] [Revised: 05/20/2015] [Accepted: 06/22/2015] [Indexed: 12/13/2022]
Abstract
Conventional tissue engineering strategies often rely on the use of a single progenitor cell source to engineer in vitro biological models; however, multi-cellular environments can better resemble the complexity of native tissues. Previous described co-culture models used skeletal myoblasts, as parenchymal cell source, and mesenchymal or endothelial cells, as stromal component. Here, we propose instead the use of adipose tissue-derived stromal vascular fraction cells, which include both mesenchymal and endothelial cells, to better resemble the native stroma. Percentage of serum supplementation is one of the crucial parameters to steer skeletal myoblasts toward either proliferation (20%) or differentiation (5%) in two-dimensional culture conditions. On the contrary, three-dimensional (3D) skeletal myoblast culture often simply adopts the serum content used in monolayer, without taking into account the new cell environment. When considering 3D cultures of mm-thick engineered tissues, homogeneous and sufficient oxygen supply is paramount to avoid formation of necrotic cores. Perfusion-based bioreactor culture can significantly improve the oxygen access to the cells, enhancing the viability and the contractility of the engineered tissues. In this study, we first investigated the influence of different serum supplementations on the skeletal myoblast ability to proliferate and differentiate during 3D perfusion-based culture. We tested percentages of serum promoting monolayer skeletal myoblast-proliferation (20%) and differentiation (5%) and suitable for stromal cell culture (10%) with a view to identify the most suitable condition for the subsequent co-culture. The 10% serum medium composition resulted in the highest number of mature myotubes and construct functionality. Co-culture with stromal vascular fraction cells at 10% serum also supported the skeletal myoblast differentiation and maturation, hence providing a functional engineered 3D muscle model that resembles the native multi-cellular environment.
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Affiliation(s)
- Giulia Cerino
- Department of Biomedicine, University of Basel and Department of Surgery, University Hospital of Basel, 4031, Basel, Switzerland
| | - Emanuele Gaudiello
- Department of Biomedicine, University of Basel and Department of Surgery, University Hospital of Basel, 4031, Basel, Switzerland
| | - Thomas Grussenmeyer
- Department of Biomedicine, University of Basel and Department of Surgery, University Hospital of Basel, 4031, Basel, Switzerland
| | - Ludovic Melly
- Department of Biomedicine, University of Basel and Department of Surgery, University Hospital of Basel, 4031, Basel, Switzerland
| | - Diana Massai
- Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Turin, Italy
| | - Andrea Banfi
- Department of Biomedicine, University of Basel and Department of Surgery, University Hospital of Basel, 4031, Basel, Switzerland
| | - Ivan Martin
- Department of Biomedicine, University of Basel and Department of Surgery, University Hospital of Basel, 4031, Basel, Switzerland
| | - Friedrich Eckstein
- Department of Biomedicine, University of Basel and Department of Surgery, University Hospital of Basel, 4031, Basel, Switzerland
| | - Martin Grapow
- Department of Biomedicine, University of Basel and Department of Surgery, University Hospital of Basel, 4031, Basel, Switzerland
| | - Anna Marsano
- Department of Biomedicine, University of Basel and Department of Surgery, University Hospital of Basel, 4031, Basel, Switzerland.
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46
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Lee EA, Im SG, Hwang NS. Efficient myogenic commitment of human mesenchymal stem cells on biomimetic materials replicating myoblast topography. Biotechnol J 2014; 9:1604-12. [DOI: 10.1002/biot.201400020] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2014] [Revised: 07/08/2014] [Accepted: 09/12/2014] [Indexed: 12/28/2022]
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47
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Swierzy IJ, Lüder CGK. Withdrawal of skeletal muscle cells from cell cycle progression triggers differentiation ofToxoplasma gondiitowards the bradyzoite stage. Cell Microbiol 2014; 17:2-17. [DOI: 10.1111/cmi.12342] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2014] [Revised: 07/03/2014] [Accepted: 08/07/2014] [Indexed: 12/19/2022]
Affiliation(s)
- Izabela J. Swierzy
- Institute for Medical Microbiology; University Medical Center; Georg-August-University; Kreuzbergring 57 D-37075 Göttingen Germany
| | - Carsten G. K. Lüder
- Institute for Medical Microbiology; University Medical Center; Georg-August-University; Kreuzbergring 57 D-37075 Göttingen Germany
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48
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Nguyen NUN, Liang VR, Wang HV. Actin-associated protein palladin is required for migration behavior and differentiation potential of C2C12 myoblast cells. Biochem Biophys Res Commun 2014; 452:728-33. [DOI: 10.1016/j.bbrc.2014.08.143] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2014] [Accepted: 08/26/2014] [Indexed: 11/17/2022]
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49
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Montesano A, Luzi L, Senesi P, Mazzocchi N, Terruzzi I. Resveratrol promotes myogenesis and hypertrophy in murine myoblasts. J Transl Med 2013; 11:310. [PMID: 24330398 PMCID: PMC3867424 DOI: 10.1186/1479-5876-11-310] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2013] [Accepted: 12/05/2013] [Indexed: 12/30/2022] Open
Abstract
Background Nutrigenomics elucidate the ability of bioactive food components to influence gene expression, protein synthesis, degradation and post-translational modifications. Resveratrol (RSV), natural polyphenol found in grapes and in other fruits, has a plethora of health benefits in a variety of human diseases: cardio- and neuroprotection, immune regulation, cancer chemoprevention, DNA repair, prevention of mitochondrial disorder, avoidance of obesity-related diseases. In skeletal muscle, RSV acts on protein catabolism and muscle function, conferring resistance against oxidative stress, injury and cell death, but its action mechanisms and protein targets in myogenesis process are not completely known. Myogenesis is a dynamic multistep process regulated by Myogenic Regulator Factors (MRFs), responsible of the commitment of myogenic cell into skeletal muscle: mononucleated undifferentiated myoblasts break free from cell cycle, elongate and fuse to form multinucleated myotubes. Skeletal muscle hypertrophy can be defined as a result of an increase in the size of pre-existing skeletal muscle fibers accompanied by increased protein synthesis, mainly regulated by Insulin Like Growth Factor 1 (IGF-1), PI3-K/AKT signaling pathways. Aim of this work was the study of RSV effects on proliferation, differentiation process and hypertrophy in C2C12 murine cells. Methods To study proliferative phase, cells were incubated in growth medium with/without RSV (0.1 or 25 μM) until reaching sub confluence condition (24, 48, 72 h). To examine differentiation, at 70% confluence, cells were transferred in differentiation medium both with/without RSV (0.1 or 25 μM) for 24, 48, 72, 96 hours. After 72 hours of differentiation, the genesis of hypertrophy in neo-formed myotubes was analyzed. Results Data showed that RSV regulates cell cycle exit and induces C2C12 muscle differentiation. Furthermore, RSV might control MRFs and muscle-specific proteins synthesis. In late differentiation, RSV has positive effects on hypertrophy: RSV stimulates IGF-1 signaling pathway, in particular AKT and ERK 1/2 protein activation, AMPK protein level and induces hypertrophic morphological changes in neo-formed myotubes modulating cytoskeletal proteins expression. Conclusions RSV might control cell cycle promoting myogenesis and hypertrophy in vitro, opening a novel field of application of RSV in clinical conditions characterized by chronic functional and morphological muscle impairment.
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Affiliation(s)
| | | | | | | | - Ileana Terruzzi
- Division of Metabolic and Cardiovascular Sciences, Metabolism, Nutrigenomics and Cellular Differentiation Unit, DIBIT-San Raffaele Scientific Institute, Milan, Italy.
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50
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Anene-Nzelu CG, Peh KY, Fraiszudeen A, Kuan YH, Ng SH, Toh YC, Leo HL, Yu H. Scalable alignment of three-dimensional cellular constructs in a microfluidic chip. LAB ON A CHIP 2013; 13:4124-4133. [PMID: 23969512 DOI: 10.1039/c3lc50730k] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
There have been considerable efforts to engineer three-dimensional (3D) microfluidic environments to enhance cellular function over conventional two-dimensional (2D) cultures in microfluidic chips, but few involve topographical features, such as micro/nano-grooves, which are beneficial for cell types of cardiac, skeletal and neuronal lineages. Here we have developed a cost-effective and scalable method to incorporate micro-topographical cues into microfluidic chips to induce cell alignment. Using commercially available optical media as molds for replica molding, we produced large surface areas of polydimethylsiloxane (PDMS) micro-grooved substrates and plasma-bonded them to multiple microfluidic chips. Besides aligning a 2D monolayer of cells, the micro-grooved substrate can align 3D cellular constructs on chip. C2C12 mouse myoblasts were cultured three-dimensionally in a microfluidic chip with incorporated PDMS micro-grooved substrate remodeled into an aligned 3D cellular construct, where the actin cytoskeleton and nuclei were preferentially oriented along the micro-grooves. Cells within the 3D cellular constructs can align without being in direct contact with the micro-grooves due to synergism between topography and fluid shear stress. Aligned C2C12 3D cellular constructs showed enhanced differentiation into skeletal muscles as compared to randomly aligned ones. This novel method enables the routine inclusion of micro-topographical cues into 2D or 3D microfluidic cultures to generate relevant physiological models for studying tissue morphogenesis and drug screening applications.
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Affiliation(s)
- Chukwuemeka George Anene-Nzelu
- Department of Bioengineering, National University of Singapore, Block EA, #03-12, 9 Engineering Drive 1, Singapore 117576, Singapore
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