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Minne M, Terrie L, Wüst R, Hasevoets S, Vanden Kerchove K, Nimako K, Lambrichts I, Thorrez L, Declercq H. Generating human skeletal myoblast spheroids for vascular myogenic tissue engineering. Biofabrication 2024; 16:025035. [PMID: 38437715 DOI: 10.1088/1758-5090/ad2fd5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Accepted: 03/04/2024] [Indexed: 03/06/2024]
Abstract
Engineered myogenic microtissues derived from human skeletal myoblasts offer unique opportunities for varying skeletal muscle tissue engineering applications, such asin vitrodrug-testing and disease modelling. However, more complex models require the incorporation of vascular structures, which remains to be challenging. In this study, myogenic spheroids were generated using a high-throughput, non-adhesive micropatterned surface. Since monoculture spheroids containing human skeletal myoblasts were unable to remain their integrity, co-culture spheroids combining human skeletal myoblasts and human adipose-derived stem cells were created. When using the optimal ratio, uniform and viable spheroids with enhanced myogenic properties were achieved. Applying a pre-vascularization strategy, through addition of endothelial cells, resulted in the formation of spheroids containing capillary-like networks, lumina and collagen in the extracellular matrix, whilst retaining myogenicity. Moreover, sprouting of endothelial cells from the spheroids when encapsulated in fibrin was allowed. The possibility of spheroids, from different maturation stages, to assemble into a more large construct was proven by doublet fusion experiments. The relevance of using three-dimensional microtissues with tissue-specific microarchitecture and increased complexity, together with the high-throughput generation approach, makes the generated spheroids a suitable tool forin vitrodrug-testing and human disease modeling.
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Affiliation(s)
- Mendy Minne
- Tissue Engineering Lab, Department of Development and Regeneration, KU Leuven campus KULAK, Kortrijk, Belgium
| | - Lisanne Terrie
- Tissue Engineering Lab, Department of Development and Regeneration, KU Leuven campus KULAK, Kortrijk, Belgium
| | - Rebecca Wüst
- Tissue Engineering Lab, Department of Development and Regeneration, KU Leuven campus KULAK, Kortrijk, Belgium
| | - Steffie Hasevoets
- Biomedical Research Institute (BIOMED), Faculty of Medicine and Life Sciences, UHasselt, Diepenbeek, Belgium
| | - Kato Vanden Kerchove
- Tissue Engineering Lab, Department of Development and Regeneration, KU Leuven campus KULAK, Kortrijk, Belgium
| | - Kakra Nimako
- Tissue Engineering Lab, Department of Development and Regeneration, KU Leuven campus KULAK, Kortrijk, Belgium
| | - Ivo Lambrichts
- Biomedical Research Institute (BIOMED), Faculty of Medicine and Life Sciences, UHasselt, Diepenbeek, Belgium
| | - Lieven Thorrez
- Tissue Engineering Lab, Department of Development and Regeneration, KU Leuven campus KULAK, Kortrijk, Belgium
| | - Heidi Declercq
- Tissue Engineering Lab, Department of Development and Regeneration, KU Leuven campus KULAK, Kortrijk, Belgium
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Long X, Chen W, Liu G, Hu W, Tan Q. Establishment and characterization of a skeletal myoblast cell line of grass carp (Ctenopharyngodon idellus). Fish Physiol Biochem 2023; 49:1043-1061. [PMID: 37782384 DOI: 10.1007/s10695-023-01246-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Accepted: 09/23/2023] [Indexed: 10/03/2023]
Abstract
Skeletal muscle myoblastic cell lines can provide a valuable new in vitro model for the exploration of the mechanisms that control skeletal muscle development and its associated molecular regulation. In this study, the skeletal muscle tissues of grass carp were digested with trypsin and collagenase I to obtain the primary myoblast cell culture. Myoblast cells were obtained by differential adherence purification and further analyzed by cryopreservation and resuscitation, chromosome analysis, immunohistochemistry, and immunofluorescence. A continuous grass carp myoblast cell line (named CIM) was established from grass carp (Ctenopharyngodon idellus) muscle and has been subcultured > 100 passages in a year and more. The CIM cells revived at 79.78-95.06% viability after 1-6 months of cryopreservation, and shared a population doubling time of 27.24 h. The number of modal chromosomes of CIM cells was 48, and the mitochondrial 12S rRNA sequence of the CIM cell line shared 99% identity with those of grass carp registered in GenBank. No microorganisms (bacteria, fungi, or mycoplasma) were detected during the whole study. The cell type of CIM cells was proven to be myoblast by immunohistochemistry of specific myogenic protein markers, including CD34, desmin, MyoD, and MyHC, as well as relative expression of key genes. And the myogenic rate and fusion index of this cell line after 10 days of induced differentiation were 8.96 ~ 9.42% and 3-24%, respectively. The telomerase activity and transfection efficiency of CIM cell line were 0.027 IU/mgprot and 23 ~ 24%, respectively. These results suggest that a myoblast cell line named CIM with normal biological function has been successfully established, which may provide a valuable tool for related in vitro studies.
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Affiliation(s)
- Xianmei Long
- Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture, College of Fisheries, Huazhong Agricultural University, Wuhan, 430070, China
- Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, Hubei Provincial Engineering Laboratory for Pond Aquaculture, Wuhan, 430070, China
| | - Wangwang Chen
- Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture, College of Fisheries, Huazhong Agricultural University, Wuhan, 430070, China
- Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, Hubei Provincial Engineering Laboratory for Pond Aquaculture, Wuhan, 430070, China
| | - Guoqing Liu
- Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture, College of Fisheries, Huazhong Agricultural University, Wuhan, 430070, China
- Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, Hubei Provincial Engineering Laboratory for Pond Aquaculture, Wuhan, 430070, China
| | - Wenguang Hu
- Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture, College of Fisheries, Huazhong Agricultural University, Wuhan, 430070, China
- Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, Hubei Provincial Engineering Laboratory for Pond Aquaculture, Wuhan, 430070, China
| | - Qingsong Tan
- Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture, College of Fisheries, Huazhong Agricultural University, Wuhan, 430070, China.
- Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, Hubei Provincial Engineering Laboratory for Pond Aquaculture, Wuhan, 430070, China.
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Vinke JSJ, Gorter AR, Eisenga MF, Dam WA, van der Meer P, van den Born J, Bakker SJ, Hoes MF, de Borst MH. Iron deficiency is related to lower muscle mass in community-dwelling individuals and impairs myoblast proliferation. J Cachexia Sarcopenia Muscle 2023; 14:1865-1879. [PMID: 37386912 PMCID: PMC10401536 DOI: 10.1002/jcsm.13277] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 04/13/2023] [Accepted: 05/01/2023] [Indexed: 07/01/2023] Open
Abstract
BACKGROUND Loss of muscle mass is linked with impaired quality of life and an increased risk of morbidity and premature mortality. Iron is essential for cellular processes such as energy metabolism, nucleotide synthesis and numerous enzymatic reactions. As the effects of iron deficiency (ID) on muscle mass and function are largely unknown, we aimed to assess the relation between ID and muscle mass in a large population-based cohort, and subsequently studied effects of ID on cultured skeletal myoblasts and differentiated myocytes. METHODS In a population-based cohort of 8592 adults, iron status was assessed by plasma ferritin and transferrin saturation, and muscle mass was estimated using 24-h urinary creatinine excretion rate (CER). The relationships of ferritin and transferrin saturation with CER were assessed by multivariable logistic regression. Furthermore, mouse C2C12 skeletal myoblasts and differentiated myocytes were subjected to deferoxamine with or without ferric citrate. Myoblast proliferation was measured with a colorimetric 5-bromo-2'-deoxy-uridine ELISA assay. Myocyte differentiation was assessed using Myh7-stainings. Myocyte energy metabolism, oxygen consumption rate and extracellular acidification rate were assessed using Seahorse mitochondrial flux analysis, and apoptosis rate with fluorescence-activated cell sorting. RNA sequencing (RNAseq) was used to identify ID-related gene and pathway enrichment in myoblasts and myocytes. RESULTS Participants in the lowest age- and sex-specific quintile of plasma ferritin (OR vs middle quintile 1.62, 95% CI 1.25-2.10, P < 0.001) or transferrin saturation (OR 1.34, 95% CI 1.03-1.75, P = 0.03) had a significantly higher risk of being in the lowest age- and sex-specific quintile of CER, independent of body mass index, estimated GFR, haemoglobin, hs-CRP, urinary urea excretion, alcohol consumption and smoking status. In C2C12 myoblasts, deferoxamine-induced ID reduced myoblast proliferation rate (P-trend <0.001) but did not affect differentiation. In myocytes, deferoxamine reduced myoglobin protein expression (-52%, P < 0.001) and tended to reduce mitochondrial oxygen consumption capacity (-28%, P = 0.10). Deferoxamine induced gene expression of cellular atrophy markers Trim63 (+20%, P = 0.002) and Fbxo32 (+27%, P = 0.048), which was reversed by ferric citrate (-31%, P = 0.04 and -26%, P = 0.004, respectively). RNAseq indicated that both in myoblasts and myocytes, ID predominantly affected genes involved in glycolytic energy metabolism, cell cycle regulation and apoptosis; co-treatment with ferric citrate reversed these effects. CONCLUSIONS In population-dwelling individuals, ID is related to lower muscle mass, independent of haemoglobin levels and potential confounders. ID impaired myoblast proliferation and aerobic glycolytic capacity, and induced markers of myocyte atrophy and apoptosis. These findings suggest that ID contributes to loss of muscle mass.
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Affiliation(s)
- Joanna Sophia J. Vinke
- Departments of NephrologyUniversity Medical Center Groningen, University of GroningenGroningenThe Netherlands
| | - Alan R. Gorter
- Departments of NephrologyUniversity Medical Center Groningen, University of GroningenGroningenThe Netherlands
| | - Michele F. Eisenga
- Departments of NephrologyUniversity Medical Center Groningen, University of GroningenGroningenThe Netherlands
| | - Wendy A. Dam
- Departments of NephrologyUniversity Medical Center Groningen, University of GroningenGroningenThe Netherlands
| | - Peter van der Meer
- Department of CardiologyUniversity Medical Center Groningen, University of GroningenGroningenThe Netherlands
| | - Jacob van den Born
- Departments of NephrologyUniversity Medical Center Groningen, University of GroningenGroningenThe Netherlands
| | - Stephan J.L. Bakker
- Departments of NephrologyUniversity Medical Center Groningen, University of GroningenGroningenThe Netherlands
| | - Martijn F. Hoes
- Department of Clinical GeneticsMaastricht University Medical Center+MaastrichtThe Netherlands
- CARIM School for Cardiovascular DiseasesMaastrichtThe Netherlands
| | - Martin H. de Borst
- Departments of NephrologyUniversity Medical Center Groningen, University of GroningenGroningenThe Netherlands
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Toya K, Tomimaru Y, Kobayashi S, Harada A, Sasaki K, Iwagami Y, Yamada D, Noda T, Takahashi H, Kado T, Imamura H, Takaichi S, Chijimatsu R, Asaoka T, Tanemura M, Miyagawa S, Doki Y, Eguchi H. Efficacy of Autologous Skeletal Myoblast Cell Sheet Transplantation for Liver Regeneration in Liver Failure. Transplantation 2023; 107:e190-e200. [PMID: 37046371 DOI: 10.1097/tp.0000000000004567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/14/2023]
Abstract
BACKGROUND No effective therapies have yet been established for liver regeneration in liver failure. Autologous skeletal myoblast cell sheet transplantation has been proven to improve cardiac function in patients with heart failure, and one of the mechanisms has been reported to be a paracrine effect by various growth factors associated with liver regeneration. Therefore, the present study focused on the effect of myoblast cells on liver regeneration in vitro and in vivo. METHODS We assessed the effect of myoblast cells on the cells comprising the liver in vitro in association with liver regeneration. In addition, we examined in vivo effect of skeletal myoblast cell sheet transplantation in C57/BL/6 mouse models of liver failure, such as liver fibrosis induced by thioacetamide and hepatectomy. RESULTS In vitro, the myoblast cells exhibited a capacity to promote the proliferation of hepatic epithelial cells and the angiogenesis of liver sinusoidal endothelial cells, and suppress the activation of hepatic stellate cells. In vivo, sheet transplantation significantly suppressed liver fibrosis in the induced liver fibrosis model and accelerated liver regeneration in the hepatectomy model. CONCLUSIONS Autologous skeletal myoblast cell sheet transplantation significantly improved the liver failure in the in vitro and in vivo models. Sheet transplantation is expected to have the potential to be a clinically therapeutic option for liver regeneration in liver failure.
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Affiliation(s)
- Keisuke Toya
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Yoshito Tomimaru
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Shogo Kobayashi
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Akima Harada
- Department of Cardiovascular Surgery, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Kazuki Sasaki
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Yoshifumi Iwagami
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Daisaku Yamada
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Takehiro Noda
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Hidenori Takahashi
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Takeshi Kado
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Hiroki Imamura
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Shohei Takaichi
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Ryota Chijimatsu
- Center for Comprehensive Genomic Medicine, Okayama University Hospital, Okayama, Japan
| | - Tadafumi Asaoka
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Masahiro Tanemura
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Shigeru Miyagawa
- Department of Cardiovascular Surgery, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Yuichiro Doki
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Hidetoshi Eguchi
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Osaka, Japan
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Cao J, Wang X, Advani V, Lu YW, Malizia AP, Singh GB, Huang Z, Liu J, Wang C, Oliveira EM, Mably JD, Chen K, Wang D. mt-Ty 5'tiRNA regulates skeletal muscle cell proliferation and differentiation. Cell Prolif 2023; 56:e13416. [PMID: 36756712 PMCID: PMC10392060 DOI: 10.1111/cpr.13416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 12/29/2022] [Accepted: 01/24/2023] [Indexed: 02/10/2023] Open
Abstract
In this study, we sought to determine the role of tRNA-derived fragments in the regulation of gene expression during skeletal muscle cell proliferation and differentiation. We employed cell culture to examine the function of mt-Ty 5' tiRNAs. Northern blotting, RT-PCR as well as RNA-Seq, were performed to determine the effects of mt-Ty 5' tiRNA loss and gain on gene expression. Standard and transmission electron microscopy (TEM) were used to characterize cell and sub-cellular structures. mt-Ty 5'tiRNAs were found to be enriched in mouse skeletal muscle, showing increased levels in later developmental stages. Gapmer-mediated inhibition of tiRNAs in skeletal muscle C2C12 myoblasts resulted in decreased cell proliferation and myogenic differentiation; consistent with this observation, RNA-Seq, transcriptome analyses, and RT-PCR revealed that skeletal muscle cell differentiation and cell proliferation pathways were also downregulated. Conversely, overexpression of mt-Ty 5'tiRNAs in C2C12 cells led to a reversal of these transcriptional trends. These data reveal that mt-Ty 5'tiRNAs are enriched in skeletal muscle and play an important role in myoblast proliferation and differentiation. Our study also highlights the potential for the development of tiRNAs as novel therapeutic targets for muscle-related diseases.
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Affiliation(s)
- Jun Cao
- Department of Cardiology, Boston Children's HospitalHarvard Medical SchoolBostonMassachusettsUSA
- Faculty of Environment and LifeBeijing University of TechnologyBeijingP. R. China
| | - Xin Wang
- Department of Cardiology, Boston Children's HospitalHarvard Medical SchoolBostonMassachusettsUSA
| | - Vivek Advani
- Department of Cardiology, Boston Children's HospitalHarvard Medical SchoolBostonMassachusettsUSA
- Departments of Internal Medicine, Molecular Pharmacology & Physiology, Center for Regenerative Medicine, USF Health Heart Institute, Morsani College of MedicineUniversity of South FloridaTampaFloridaUSA
| | - Yao Wei Lu
- Department of Cardiology, Boston Children's HospitalHarvard Medical SchoolBostonMassachusettsUSA
- Vascular Biology Program, Department of Surgery, Boston Children's HospitalHarvard Medical SchoolBostonMassachusettsUSA
| | - Andrea P. Malizia
- Department of Cardiology, Boston Children's HospitalHarvard Medical SchoolBostonMassachusettsUSA
| | - Gurinder Bir Singh
- Department of Cardiology, Boston Children's HospitalHarvard Medical SchoolBostonMassachusettsUSA
- Departments of Internal Medicine, Molecular Pharmacology & Physiology, Center for Regenerative Medicine, USF Health Heart Institute, Morsani College of MedicineUniversity of South FloridaTampaFloridaUSA
| | - Zhan‐Peng Huang
- Department of Cardiology, Boston Children's HospitalHarvard Medical SchoolBostonMassachusettsUSA
| | - Jianming Liu
- Department of Cardiology, Boston Children's HospitalHarvard Medical SchoolBostonMassachusettsUSA
- Present address:
Vertex pharmaceuticalsBostonMassachusettsUSA
| | - Chunbo Wang
- UNC McAllister Heart InstituteUniversity of North CarolinaChapel HillNorth CarolinaUSA
| | - Edilamar M. Oliveira
- Departments of Internal Medicine, Molecular Pharmacology & Physiology, Center for Regenerative Medicine, USF Health Heart Institute, Morsani College of MedicineUniversity of South FloridaTampaFloridaUSA
- School of Physical Education and SportUniversity of Sao PauloSao PauloBrazil
| | - John D. Mably
- Departments of Internal Medicine, Molecular Pharmacology & Physiology, Center for Regenerative Medicine, USF Health Heart Institute, Morsani College of MedicineUniversity of South FloridaTampaFloridaUSA
| | - Kaifu Chen
- Department of Cardiology, Boston Children's HospitalHarvard Medical SchoolBostonMassachusettsUSA
| | - Da‐Zhi Wang
- Department of Cardiology, Boston Children's HospitalHarvard Medical SchoolBostonMassachusettsUSA
- Departments of Internal Medicine, Molecular Pharmacology & Physiology, Center for Regenerative Medicine, USF Health Heart Institute, Morsani College of MedicineUniversity of South FloridaTampaFloridaUSA
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Matheny RW, Kolb AL, Geddis AV, Roberts BM. Celecoxib impairs primary human myoblast proliferation and differentiation independent of cyclooxygenase 2 inhibition. Physiol Rep 2022; 10:e15481. [PMID: 36325583 PMCID: PMC9630763 DOI: 10.14814/phy2.15481] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2022] [Revised: 08/29/2022] [Accepted: 09/12/2022] [Indexed: 06/16/2023] Open
Abstract
The use of non-steroidal anti-inflammatory drugs (NSAIDs) for treatment of musculoskeletal injuries is commonplace in the general, athletic, and military populations. While NSAIDs have been studied in a variety of tissues, the effects of NSAIDs on skeletal muscle have not been fully defined. To address this, we investigated the degree to which the cyclooxygenase (COX)-2-selective NSAID celecoxib affects muscle cell proliferation, differentiation, anabolic signaling, and mitochondrial function in primary human skeletal myoblasts and myotubes. Primary muscle cells were treated with celecoxib or NS-398 (a pharmacological inhibitor of COX-2) as a control. Celecoxib administration significantly reduced myoblast proliferation, viability, fusion, and myotube area in a dose-dependent manner, whereas NS-398 had no effect on any of these outcomes. Celecoxib treatment was also associated with reduced phosphorylation of ribosomal protein S6 in myoblasts, and reduced phosphorylation of AKT, p70S6K, S6, and ERK in myotubes. In contrast, NS-398 did not alter phosphorylation of these molecules in myoblasts or myotubes. In myoblasts, celecoxib significantly reduced mitochondrial membrane potential and respiration, as evidenced by the decreased citric acid cycle (CAC) intermediates cis-aconitic acid, alpha-keto-glutarate acid, succinate acid, and malic acid. Similar results were observed in myotubes, although celecoxib also reduced pyruvic acid, citric acid, and fumaric acid. NS-398 did not affect CAC intermediates in myoblasts or myotubes. Together, these data reveal that celecoxib inhibits proliferation, differentiation, intracellular signaling, and mitochondrial function in primary human myoblasts and myotubes independent of its function as a COX-2 inhibitor.
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Affiliation(s)
- Ronald W. Matheny
- Military Performance DivisionUS Army Research Institute of Environmental MedicineNatickMassachusettsUSA
- Military Operational Medicine Research ProgramFt. DetrickMarylandUSA
| | - Alexander L. Kolb
- Military Performance DivisionUS Army Research Institute of Environmental MedicineNatickMassachusettsUSA
| | - Alyssa V. Geddis
- Military Performance DivisionUS Army Research Institute of Environmental MedicineNatickMassachusettsUSA
| | - Brandon M. Roberts
- Military Performance DivisionUS Army Research Institute of Environmental MedicineNatickMassachusettsUSA
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Jeon SH, Choung SY. Oyster Hydrolysates Attenuate Muscle Atrophy via Regulating Protein Turnover and Mitochondria Biogenesis in C2C12 Cell and Immobilized Mice. Nutrients 2021; 13:4385. [PMID: 34959937 PMCID: PMC8703783 DOI: 10.3390/nu13124385] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 12/03/2021] [Accepted: 12/06/2021] [Indexed: 11/17/2022] Open
Abstract
Sarcopenia, also known as skeletal muscle atrophy, is characterized by significant loss of muscle mass and strength. Oyster (Crassostrea gigas) hydrolysates have anti-cancer, antioxidant, and anti-inflammation properties. However, the anti-sarcopenic effect of oyster hydrolysates remains uninvestigated. Therefore, we prepared two different oyster hydrolysates, namely TGPN and PNY. This study aimed to determine the anti-muscle atrophy efficacy and molecular mechanisms of TGPN and PNY on both C2C12 cell lines and mice. In vitro, the TGPN and PNY recovered the dexamethasone-induced reduction in the myotube diameters. In vivo, TGPN and PNY administration not only improved grip strength and exercise endurance, but also attenuated the loss of muscle mass and muscle fiber cross-sectional area. Mechanistically, TGPN and PNY increased the expression of protein synthesis-related protein levels via phosphoinositide 3-kinase (PI3K)/protein kinase B (Akt)/mammalian target of the rapamycin pathway, and reduced the expression of protein degradation-related protein levels via the PI3K/Akt/forkhead box O pathway. Also, TGPN and PNY stimulated NAD-dependent deacetylase sirtuin-1(SIRT1), peroxisome proliferator-activated receptor gamma coactivator-1 alpha (PGC-1α), nuclear respiratory factor 1,2, mitochondrial transcription factor A, along with mitochondrial DNA content via SIRT1/PGC-1α signaling. These findings suggest oyster hydrolysates could be used as a valuable natural material that inhibits skeletal muscle atrophy via regulating protein turnover and mitochondrial biogenesis.
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Affiliation(s)
- So-Hyun Jeon
- Department of Biomedical and Pharmaceutical Sciences, Graduate School, Kyung Hee University, 26, Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Korea;
| | - Se-Young Choung
- Department of Biomedical and Pharmaceutical Sciences, Graduate School, Kyung Hee University, 26, Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Korea;
- Department of Preventive Pharmacy and Toxicology, College of Pharmacy, Kyung Hee University, 26, Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Korea
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8
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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: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [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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Chang R, Yan Q, Kingshott P, Tsai WB, Wang PY. Harnessing the perinuclear actin cap (pnAC) to influence nanocarrier trafficking and gene transfection efficiency in skeletal myoblasts using nanopillars. Acta Biomater 2020; 111:221-231. [PMID: 32442782 DOI: 10.1016/j.actbio.2020.05.015] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Revised: 05/08/2020] [Accepted: 05/12/2020] [Indexed: 12/29/2022]
Abstract
Gene transfection is important in biotechnology and is used to modify cells intrinsically. It can be conducted in cell suspension or after cell adhesion, where the efficiency is dependent on many factors such as the type of nanocarrier used and cell division processes. Anchor-dependent cells are sensitive to the substrate they are attached to and adapt their behavior accordingly, including plasmid trafficking during gene transfection. Previously, it was shown in our group that the cytoskeleton is an essential factor in influencing gene transfection in skeletal myoblasts using nanogrooves as a substrate. In this study, the effect of the cytoskeleton on gene transfection efficiency of skeletal myoblasts was studied using various nanopillars and nanocarriers. Nanopillars with different diameters (200-1000 nm) and depths (200 or 400 nm) were fabricated using colloidal self-assembly and reactive ion etching. All surfaces were treated with oxygen plasma or polydopamine (PD) to further control cell morphology. Plasmid DNA was delivered into cells using jetPRIME or Lipofectamine 3000 nanocarriers. After screening hundreds of images, two distinguishable F-actin distributions were found, i.e., cells with or without a perinuclear actin cap (pnAC). Cells attached to nanopillars, especially the deep pillars, had a smaller spreading area, shorter F-actin, more 3D-like cell nuclei, and a lower percentage of pnAC, which lead to a higher gene transfection efficiency using jetPRIME. On the other hand, cells attached to the shallow nanopillars or flat surfaces had a larger spreading area, longer F-actin, more 2D-like cell nuclei, and a higher percentage of pnAC that facilitates gene transfection using Lipofectamine. The effects of cell density, cytoskeleton (cytoD), and focal adhesions (RGD) on gene transfection were also studied, and the results were consistent with our hypothesis that F-actin distribution is one of the critical factors in gene transfection. In conclusion, pnAC plays a vital role in the intracellular trafficking of nanocarrier/plasmid complexes and this study provides new insights into gene transfection in anchor-dependent cells. STATEMENT OF SIGNIFICANCE: This study provides a new perspective in gene transfection using attached cells where perinuclear actin cap (pnAC) is an essential factor involved in transfection efficiency. A series of nanopillars were used to harness cell and cytoskeleton morphology. Two distinguishable cytoskeletal structures were found including cells with or without pnAC. 2D-like cells with pnAC facilitate gene delivery using liposome-based nanocarriers, while 3D-like cells without pnAC benefit gene delivery using cationic polymer-based nanocarriers. This study reveals the importance of the cytoskeleton during gene transfection that is beneficial in tissue transfection.
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Affiliation(s)
- Ray Chang
- Shenzhen Key Laboratory of Biomimetic Materials and Cellular Immunomodulation, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, Guangdong 518055, China; Graduate Institute of Biomedical Materials and Tissue Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 110, Taiwan; Department of Chemical Engineering, National Taiwan University, Taipei 106, Taiwan
| | - Qingfeng Yan
- Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Peter Kingshott
- Department of Chemistry and Biotechnology, Swinburne University of Technology, Hawthorn, Victoria 3122, Australia; ARC Training Centre for Surface Engineering for Advanced Materials (SEAM), Swinburne University of Technology, Hawthorn, Victoria 3122, Australia
| | - Wei-Bor Tsai
- Department of Chemical Engineering, National Taiwan University, Taipei 106, Taiwan
| | - Peng-Yuan Wang
- Shenzhen Key Laboratory of Biomimetic Materials and Cellular Immunomodulation, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, Guangdong 518055, China; Department of Chemistry and Biotechnology, Swinburne University of Technology, Hawthorn, Victoria 3122, Australia.
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10
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Guigni BA, van der Velden J, Kinsey CM, Carson JA, Toth MJ. Effects of conditioned media from murine lung cancer cells and human tumor cells on cultured myotubes. Am J Physiol Endocrinol Metab 2020; 318:E22-E32. [PMID: 31689144 PMCID: PMC6985792 DOI: 10.1152/ajpendo.00310.2019] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Factors secreted from tumors/tumor cells are hypothesized to cause skeletal muscle wasting in cancer patients. We examined whether cancer cells secrete factors to promote atrophy by evaluating the effects of conditioned media (CM) from murine lung cancer cells and primary cultures of human lung tumor cells on cultured myotubes. We evaluated murine Lewis lung carcinoma (LLC) and KRASG12D cells, and primary cell lines derived from tumor biopsies from patients with lung cancer (hTCM; n = 6). In all experiments, serum content was matched across treatment groups. We hypothesized that CM from murine and human tumor cells would reduce myotube myosin content, decrease mitochondrial content, and increase mitochondrial reactive oxygen species (ROS) production. Treatment of myotubes differentiated for 7 days with CM from LLC and KRASG12D cells did not alter any of these variables. Effects of murine tumor cell CM were observed when myotubes differentiated for 4 days were treated with tumor cell CM and compared with undiluted differentiation media. However, these effects were not apparent if tumor cell CM treatments were compared with control cell CM or dilution controls. Finally, CM from human lung tumor primary cell lines did not modify myosin content or mitochondrial content or ROS production compared with either undiluted differentiated media, control cell CM, or dilution controls. Our results do not support the hypothesis that factors released from cultured lung cancer/tumor cells promote myotube wasting or mitochondrial abnormalities, but we cannot dismiss the possibility that these cells could secrete such factors in vivo within the native tumor microenvironment.
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MESH Headings
- Adenocarcinoma/metabolism
- Aged
- Aged, 80 and over
- Animals
- Cachexia/etiology
- Cachexia/metabolism
- Carcinoma, Lewis Lung/metabolism
- Carcinoma, Non-Small-Cell Lung/metabolism
- Carcinoma, Squamous Cell/metabolism
- Cell Line, Tumor
- Culture Media, Conditioned/pharmacology
- Female
- Humans
- Lung Neoplasms/metabolism
- Male
- Mice
- Middle Aged
- Mitochondria, Muscle/drug effects
- Mitochondria, Muscle/metabolism
- Muscle Fibers, Skeletal/drug effects
- Muscle Fibers, Skeletal/metabolism
- Myoblasts, Skeletal
- Myosins/metabolism
- Neoplasms/complications
- Neoplasms/metabolism
- Primary Cell Culture
- Reactive Oxygen Species/metabolism
- Tumor Cells, Cultured
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Affiliation(s)
- Blas A Guigni
- Department of Medicine, College of Medicine, University of Vermont, Burlington, Vermont
- Department of Molecular Physiology and Biophysics, College of Medicine, University of Vermont, Burlington, Vermont
| | - Jos van der Velden
- Department of Pathology and Laboratory Medicine, College of Medicine, University of Vermont, Burlington, Vermont
| | - C Matthew Kinsey
- Department of Medicine, College of Medicine, University of Vermont, Burlington, Vermont
| | - James A Carson
- Integrative Muscle Biology Laboratory, College of Health Professions, University of Tennessee Health Science Center, Memphis, Tennessee
| | - Michael J Toth
- Department of Medicine, College of Medicine, University of Vermont, Burlington, Vermont
- Department of Molecular Physiology and Biophysics, College of Medicine, University of Vermont, Burlington, Vermont
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11
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Fujimoto BA, Young M, Carter L, Pang APS, Corley MJ, Fogelgren B, Polgar N. The exocyst complex regulates insulin-stimulated glucose uptake of skeletal muscle cells. Am J Physiol Endocrinol Metab 2019; 317:E957-E972. [PMID: 31593505 PMCID: PMC6962504 DOI: 10.1152/ajpendo.00109.2019] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Revised: 10/02/2019] [Accepted: 10/02/2019] [Indexed: 01/16/2023]
Abstract
Skeletal muscle handles ~80-90% of the insulin-induced glucose uptake. In skeletal muscle, insulin binding to its cell surface receptor triggers redistribution of intracellular glucose transporter GLUT4 protein to the cell surface, enabling facilitated glucose uptake. In adipocytes, the eight-protein exocyst complex is an indispensable constituent in insulin-induced glucose uptake, as it is responsible for the targeted trafficking and plasma membrane-delivery of GLUT4. However, the role of the exocyst in skeletal muscle glucose uptake has never been investigated. Here we demonstrate that the exocyst is a necessary factor in insulin-induced glucose uptake in skeletal muscle cells as well. The exocyst complex colocalizes with GLUT4 storage vesicles in L6-GLUT4myc myoblasts at a basal state and associates with these vesicles during their translocation to the plasma membrane after insulin signaling. Moreover, we show that the exocyst inhibitor endosidin-2 and a heterozygous knockout of Exoc5 in skeletal myoblast cells both lead to impaired GLUT4 trafficking to the plasma membrane and hinder glucose uptake in response to an insulin stimulus. Our research is the first to establish that the exocyst complex regulates insulin-induced GLUT4 exocytosis and glucose metabolism in muscle cells. A deeper knowledge of the role of the exocyst complex in skeletal muscle tissue may help our understanding of insulin resistance in type 2 diabetes.
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Affiliation(s)
- Brent A Fujimoto
- Department of Anatomy, Biochemistry and Physiology, John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii
| | - Madison Young
- Department of Anatomy, Biochemistry and Physiology, John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii
| | - Lamar Carter
- Department of Anatomy, Biochemistry and Physiology, John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii
| | - Alina P S Pang
- Department of Native Hawaiian Health, John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii
| | - Michael J Corley
- Department of Native Hawaiian Health, John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii
| | - Ben Fogelgren
- Department of Anatomy, Biochemistry and Physiology, John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii
| | - Noemi Polgar
- Department of Anatomy, Biochemistry and Physiology, John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii
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12
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Rival CM, Xu W, Shankman LS, Morioka S, Arandjelovic S, Lee CS, Wheeler KM, Smith RP, Haney LB, Isakson BE, Purcell S, Lysiak JJ, Ravichandran KS. Phosphatidylserine on viable sperm and phagocytic machinery in oocytes regulate mammalian fertilization. Nat Commun 2019; 10:4456. [PMID: 31575859 PMCID: PMC6773685 DOI: 10.1038/s41467-019-12406-z] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Accepted: 08/29/2019] [Indexed: 01/06/2023] Open
Abstract
Fertilization is essential for species survival. Although Izumo1 and Juno are critical for initial interaction between gametes, additional molecules necessary for sperm:egg fusion on both the sperm and the oocyte remain to be defined. Here, we show that phosphatidylserine (PtdSer) is exposed on the head region of viable and motile sperm, with PtdSer exposure progressively increasing during sperm transit through the epididymis. Functionally, masking phosphatidylserine on sperm via three different approaches inhibits fertilization. On the oocyte, phosphatidylserine recognition receptors BAI1, CD36, Tim-4, and Mer-TK contribute to fertilization. Further, oocytes lacking the cytoplasmic ELMO1, or functional disruption of RAC1 (both of which signal downstream of BAI1/BAI3), also affect sperm entry into oocytes. Intriguingly, mammalian sperm could fuse with skeletal myoblasts, requiring PtdSer on sperm and BAI1/3, ELMO2, RAC1 in myoblasts. Collectively, these data identify phosphatidylserine on viable sperm and PtdSer recognition receptors on oocytes as key players in sperm:egg fusion.
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Affiliation(s)
- Claudia M Rival
- The Center for Cell Clearance, School of Medicine, University of Virginia, 1340 Jefferson Park Avenue, Pinn Hall, Charlottesville, VA, 22903, USA
- Department of Microbiology, Immunology, and Cancer Biology, School of Medicine, University of Virginia, 1340 Jefferson Park Avenue, Pinn Hall, Charlottesville, VA, 22903, USA
- Department of Urology, School of Medicine, University of Virginia, 1340 Jefferson Park Avenue, Pinn Hall, Charlottesville, VA, 22903, USA
| | - Wenhao Xu
- Department of Microbiology, Immunology, and Cancer Biology, School of Medicine, University of Virginia, 1340 Jefferson Park Avenue, Pinn Hall, Charlottesville, VA, 22903, USA
| | - Laura S Shankman
- The Center for Cell Clearance, School of Medicine, University of Virginia, 1340 Jefferson Park Avenue, Pinn Hall, Charlottesville, VA, 22903, USA
- Department of Microbiology, Immunology, and Cancer Biology, School of Medicine, University of Virginia, 1340 Jefferson Park Avenue, Pinn Hall, Charlottesville, VA, 22903, USA
| | - Sho Morioka
- The Center for Cell Clearance, School of Medicine, University of Virginia, 1340 Jefferson Park Avenue, Pinn Hall, Charlottesville, VA, 22903, USA
- Department of Microbiology, Immunology, and Cancer Biology, School of Medicine, University of Virginia, 1340 Jefferson Park Avenue, Pinn Hall, Charlottesville, VA, 22903, USA
| | - Sanja Arandjelovic
- The Center for Cell Clearance, School of Medicine, University of Virginia, 1340 Jefferson Park Avenue, Pinn Hall, Charlottesville, VA, 22903, USA
- Department of Microbiology, Immunology, and Cancer Biology, School of Medicine, University of Virginia, 1340 Jefferson Park Avenue, Pinn Hall, Charlottesville, VA, 22903, USA
| | - Chang Sup Lee
- The Center for Cell Clearance, School of Medicine, University of Virginia, 1340 Jefferson Park Avenue, Pinn Hall, Charlottesville, VA, 22903, USA
- Department of Microbiology, Immunology, and Cancer Biology, School of Medicine, University of Virginia, 1340 Jefferson Park Avenue, Pinn Hall, Charlottesville, VA, 22903, USA
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Gyeongsang National University, 501 Jinju-daero, Jinju, Gyeongnam, 52828, Republic of Korea
| | - Karen M Wheeler
- Department of Urology, School of Medicine, University of Virginia, 1340 Jefferson Park Avenue, Pinn Hall, Charlottesville, VA, 22903, USA
| | - Ryan P Smith
- Department of Urology, School of Medicine, University of Virginia, 1340 Jefferson Park Avenue, Pinn Hall, Charlottesville, VA, 22903, USA
| | - Lisa B Haney
- The Center for Cell Clearance, School of Medicine, University of Virginia, 1340 Jefferson Park Avenue, Pinn Hall, Charlottesville, VA, 22903, USA
- Department of Microbiology, Immunology, and Cancer Biology, School of Medicine, University of Virginia, 1340 Jefferson Park Avenue, Pinn Hall, Charlottesville, VA, 22903, USA
| | - Brant E Isakson
- Department of Molecular Physiology and Biological Physics, School of Medicine, University of Virginia, 1340 Jefferson Park Avenue, Pinn Hall, Charlottesville, VA, 22903, USA
| | - Scott Purcell
- Reproductive Medicine and Surgery Center of Virginia, 595 Martha Jefferson Dr., Charlottesville, VA, 22911, USA
| | - Jeffrey J Lysiak
- The Center for Cell Clearance, School of Medicine, University of Virginia, 1340 Jefferson Park Avenue, Pinn Hall, Charlottesville, VA, 22903, USA.
- Department of Urology, School of Medicine, University of Virginia, 1340 Jefferson Park Avenue, Pinn Hall, Charlottesville, VA, 22903, USA.
| | - Kodi S Ravichandran
- The Center for Cell Clearance, School of Medicine, University of Virginia, 1340 Jefferson Park Avenue, Pinn Hall, Charlottesville, VA, 22903, USA.
- Department of Microbiology, Immunology, and Cancer Biology, School of Medicine, University of Virginia, 1340 Jefferson Park Avenue, Pinn Hall, Charlottesville, VA, 22903, USA.
- Department of Biomedical Molecular Biology, Ghent University, and the UGent-VIB Center for Inflammation Research, Technologiepark 71, 9052, Ghent, Belgium.
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13
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Bone DBJ, Meister J, Knudsen JR, Dattaroy D, Cohen A, Lee R, Lu H, Metzger D, Jensen TE, Wess J. Skeletal Muscle-Specific Activation of G q Signaling Maintains Glucose Homeostasis. Diabetes 2019; 68:1341-1352. [PMID: 30936140 PMCID: PMC6610017 DOI: 10.2337/db18-0796] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Accepted: 03/22/2019] [Indexed: 12/19/2022]
Abstract
Skeletal muscle (SKM) insulin resistance plays a central role in the pathogenesis of type 2 diabetes. Because G-protein-coupled receptors (GPCRs) represent excellent drug targets, we hypothesized that activation of specific functional classes of SKM GPCRs might lead to improved glucose homeostasis in type 2 diabetes. At present, little is known about the in vivo metabolic roles of the various distinct GPCR signaling pathways operative in SKM. In this study, we tested the hypothesis that selective activation of SKM Gq signaling can improve SKM glucose uptake and whole-body glucose homeostasis under physiological and pathophysiological conditions. Studies with transgenic mice expressing a Gq-linked designer GPCR selectively in SKM cells demonstrated that receptor-mediated activation of SKM Gq signaling greatly promoted glucose uptake into SKM and significantly improved glucose homeostasis in obese, glucose-intolerant mice. These beneficial metabolic effects required the activity of SKM AMPK. In contrast, obese mutant mice that lacked both Gαq and Gα11 selectively in SKM showed severe deficits in glucose homeostasis. Moreover, GPCR-mediated activation of Gq signaling also stimulated glucose uptake in primary human SKM cells. Taken together, these findings strongly suggest that agents capable of enhancing SKM Gq signaling may prove useful as novel antidiabetic drugs.
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Affiliation(s)
- Derek B J Bone
- Molecular Signaling Section, Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, MD
| | - Jaroslawna Meister
- Molecular Signaling Section, Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, MD
| | - Jonas R Knudsen
- Section of Molecular Physiology, Department of Nutrition, Exercise and Sports, University of Copenhagen, Copenhagen, Denmark
| | - Diptadip Dattaroy
- Molecular Signaling Section, Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, MD
| | - Amanda Cohen
- Molecular Signaling Section, Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, MD
| | - Regina Lee
- Molecular Signaling Section, Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, MD
| | - Huiyan Lu
- Mouse Transgenic Core Facility, National Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, MD
| | - Daniel Metzger
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, CNRS UMR 7104, INSERM U1258, Université de Strasbourg, Illkirch, France
| | - Thomas E Jensen
- Section of Molecular Physiology, Department of Nutrition, Exercise and Sports, University of Copenhagen, Copenhagen, Denmark
| | - Jürgen Wess
- Molecular Signaling Section, Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, MD
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14
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Soejitno A, Wihandani DM, Kuswardhani RAT. Clinical applications of stem cell therapy for regenerating the heart. Acta Med Indones 2010; 42:243-257. [PMID: 21063047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
An immediate reperfusion therapy after acute myocardial infarction (AMI) is a prerequisite to prevent further cardiac damage and minimize ventricular remodelling. Although a rigorous and sophisticated set of therapeutic procedure has been applied in the disease management, mortality rate has yet unchanged during the last twenty years. This fact necessitates an alternative or adjuvant therapy that is critically safe and capable of repairing the injured vascular as well as regenerating the infarcted myocardium without omitting the ethical considerations. Stem cell therapy could be the answer. It has gained major basic and clinical research interest, ever since its discovered potential to repair the injured vascular in 1997. Multiple cell types across lineages have been shown to be able to transdifferentiate into mature functioning cardiomyocytes either in vitro through similar phenotypical and genotypical characteristics or in vivo by regenerating the infarcted myocardium and improve contractile function. Although the exact repairing mechanisms are still in a major debate, numerous clinical trials have demonstrated favorable effects toward the use of autologous stem cells in AMI patients with considerably low side effects. Despite the relatively novel discovery, stem cell therapy offers a promising prospect to confer a better protection, prevent later complications, and perhaps reduce the mortality among patients with ischemic heart disease. This ultimate outcome would likely be achieved through a stringent and coordinated of either basic and clinical research.
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Affiliation(s)
- Andreas Soejitno
- Faculty of Medicine, Udayana University. Jl. PB. Sudirman, Denpasar 80232, Bali, Indonesia. andreas.soejitno@live
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15
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Abstract
The extract of plant Shilianhua (SLH; Sinocrassula indica Berge) is a component in a commercial product for control of blood glucose. However, it remains to be investigated whether the SLH extract enhances insulin sensitivity in a model of type 2 diabetes. To address this question, the SLH crude extract was fractionated into four parts on the basis of polarity, and bioactivities of each part were tested in cells. One of the fractions, F100, exhibited a strong activity in the stimulation of glucose consumption in vitro. Glucose consumption was induced significantly by F100 in 3T3-L1 adipocytes, L6 myotubes, and H4IIE hepatocytes in the absence of insulin. F100 also increased insulin-stimulated glucose consumption in L6 myotubes and H4IIE hepatocytes. It increased insulin-independent glucose uptake in 3T3-L1 adipocytes and insulin-dependent glucose uptake in L6 cells. The glucose transporter-1 (GLUT1) protein was induced in 3T3-L1 cells, and the GLUT4 protein was induced in L6 cells by F100. Mechanism study indicated that F100 induced GSK-3beta phosphorylation, which was comparable with that induced by insulin. Additionally, the transcriptional activity of NF-kappaB was inhibited by F100. In RAW 264.7 macrophages, mRNA expression of NF-kappaB target genes (TNFalpha and MCP-1) was suppressed by F100. In KK.Cg-A(y)/+ mice, F100 decreased fasting insulin and blood glucose and improved insulin tolerance significantly. We conclude that the F100 may be a bioactive component in the SLH plant. It promotes glucose metabolism in vitro and in vivo. Inhibition of GSK-3beta and NF-kappaB may be the potential mechanism.
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Affiliation(s)
- Jun Yin
- Pennington Biomedical Research Center, Louisiana State University System, 6400 Perkins Rd., Baton Rouge, LA 70808, USA
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16
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von Haehling S. The American Heart Association's Scientific Sessions 2006. Chicago, IL, November 12-15, 2006. Heart Fail Monit 2007; 5:101-3. [PMID: 17487298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Affiliation(s)
- Stephan von Haehling
- Department of Clinical Cardiology, Imperial College School of Medicine, National Heart & Lung Institute, London, UK
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17
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Lam MT, Sim S, Zhu X, Takayama S. The effect of continuous wavy micropatterns on silicone substrates on the alignment of skeletal muscle myoblasts and myotubes. Biomaterials 2006; 27:4340-7. [PMID: 16650470 DOI: 10.1016/j.biomaterials.2006.04.012] [Citation(s) in RCA: 128] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2006] [Accepted: 04/03/2006] [Indexed: 11/18/2022]
Abstract
Tissue-engineered muscle is a viable option for tissue repair, though presently technologies are not developed enough to produce tissue in vitro identical to that in vivo. One important step in generating accurate engineered muscle is to mimic natural muscle architecture. Skeletal muscle is composed of fibrils whose organization defines functionality. In musculoskeletal myogenesis, aligning myoblasts in preparation for myotube formation is a crucial step. The ability to efficiently organize myoblasts to form aligned myotubes in vitro would greatly benefit efforts in muscle tissue engineering. This paper reports alignment of prefused and differentiated skeletal muscle cells in vitro by use of continuous micropatterned wavy silicone surfaces, with features sized 3, 6 and 12 microm in periodicity. Wave features with 6 microm periodicity produced the most healthy, aligned myoblasts. Alignment was found to be a function of plating density. Further growth on these substrates with aligned myoblasts promoted fusion, yielding healthy aligned myotubes. This method will be useful for applications in which differentiated myogenic cells need to be aligned unidirectionally as in the development of engineered muscle.
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Affiliation(s)
- Mai T Lam
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
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18
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Menasché P. The potential of embryonic stem cells to treat heart disease. Curr Opin Mol Ther 2005; 7:293-9. [PMID: 16121694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Cell therapy is currently receiving growing interest as a new means of repairing infarcted myocardium. Despite the encouraging experimental results yielded by autologous skeletal myoblasts and bone marrow-derived hematopoietic and mesenchymal stem cells, there is increasing evidence that the plasticity of these adult cells is more limited than initially thought and that, consequently, their conversion into cardiomyocytes is unlikely or, at best, quantitatively very limited. As the engrafted cells should electromechanically interact with host cardiac cells to form a functional syncytium, attention is now increasingly focused on cells that feature a true cardiomyogenic differentiation potential, enabling them to connect with the neighboring cardiomyocytes. In this setting, embryonic stem cells are particularly attractive, since they can be precommitted towards a cardiac lineage and complete their full maturation in vivo, possibly under the influence of host tissue-associated paracrine signaling pathways. Although a potential clinical use of embryonic stem cells is still fraught with difficulty (amplification, purification and immunogenicity), available experimental data suggest a consistent efficacy in repairing infarcted myocardium, which has stimulated efforts to address these issues.
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Affiliation(s)
- Philippe Menasché
- Hôpital Européen Georges Pompidou & Paris-Descartes University, Department of Cardiovascular Surgery & INSERM U633, 20 rue Leblanc, Paris 75015, France.
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19
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Smits PC. Myocardial repair with autologous skeletal myoblasts: a review of the clinical studies and problems. Minerva Cardioangiol 2004; 52:525-35. [PMID: 15729213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/01/2023]
Abstract
Stem cell therapy for myocardial repair after myocardial infarction is a new and promising treatment modality. Currently, bone marrow derived stem cells are used in clinical studies to evaluate its beneficial effect on repair of infarcted/hibernating myocardium in the subacute phase after myocardial infarction. Whereas skeletal myoblasts are nowadays under investigation in the setting of scar repair in chronic congestive heart failure patients. The mechanism of bone marrow derived stem cells is probably mainly related to induction and stimulation of angiogenesis, whereas skeletal myoblasts are more likely to contribute to recovery of left ventricular function by the direct engraftment of contractile cells and hypothetically indirect by stimulation of native and circulation stem cells to home into the scarred tissue. This review will focus on the use of skeletal myoblasts in all clinical studies presented sofar and will discuss several issues like: different transplantation methods, potential mechanism of effect, potential risks like arrhythmia and future concepts. As the target population of skeletal myoblast transplantation is chronic post myocardial infarction heart failure patients, ventricular arrhythmias are very likely to occur. This review will specially address the presence of ventricular arrhythmias observed in some clinical studies and the pre-clinical data on the electrophysiology of skeletal myotubes and its relationship to the surrounding myocardium.
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Affiliation(s)
- P C Smits
- Medical Center Rijnmond Zuid, Rotterdam, The Netherlands.
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20
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Abstract
We overview the current knowledge about the use of skeletal myoblasts in regeneration of infarcted myocardium. Myoblasts are attractive candidates for cell source for cardiomyoplasty in chronic postmyocardial injury as indicated by experimental and initial clinical experience. We also review the recent developments in skeletal myoblasts transplantation techniques with special attention to percutaneous transvenous approach to deliver therapeutic agents into myocardium from the lumen of coronary veins under intravascular guidance.
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Affiliation(s)
- Tomasz Siminiak
- Department of Cardiology, University School of Medical Sciences, District Hospital, Poznań, Poland.
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Christman KL, Vardanian AJ, Fang Q, Sievers RE, Fok HH, Lee RJ. Injectable fibrin scaffold improves cell transplant survival, reduces infarct expansion, and induces neovasculature formation in ischemic myocardium. J Am Coll Cardiol 2004; 44:654-60. [PMID: 15358036 DOI: 10.1016/j.jacc.2004.04.040] [Citation(s) in RCA: 362] [Impact Index Per Article: 18.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/02/2003] [Revised: 03/22/2004] [Accepted: 04/13/2004] [Indexed: 11/28/2022]
Abstract
OBJECTIVES In this study, we determined whether fibrin glue improves cell transplant retention and survival, reduces infarct expansion, and induces neovasculature formation. BACKGROUND Current efforts in restoring the myocardium after myocardial infarction (MI) include the delivery of viable cells to replace necrotic cardiomyocytes. Cellular transplantation techniques are, however, limited by transplanted cell retention and survival within the ischemic tissue. METHODS The left coronary artery of rats was occluded for 17 min followed by reperfusion. One week later, bovine serum albumin (BSA), fibrin glue, skeletal myoblasts in BSA, or skeletal myoblasts in fibrin glue were injected into the infarcted area of the left ventricle. The animals were euthanized five weeks after injection, and their hearts were excised, fresh frozen, and sectioned for histology and immunohistochemistry. RESULTS After five weeks, the mean area covered by skeletal myoblasts in fibrin glue was significantly greater than the area covered by myoblasts injected in BSA. Myoblasts within the infarct were often concentrated around arterioles. The infarct scar size and myoblasts in the fibrin group were significantly smaller than those in the control and BSA groups. Fibrin glue also significantly increased the arteriole density in the infarct scar as compared with the control group. CONCLUSIONS This study indicates that fibrin glue increases cell transplant survival, decreases infarct size, and increases blood flow to ischemic myocardium. Therefore, fibrin glue may have potential as a biomaterial scaffold to improve cellular cardiomyoplasty treat and MIs.
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Affiliation(s)
- Karen L Christman
- University of California Berkeley and San Francisco Joint Bioengineering Graduate Group, San Francisco, California, USA
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Christman KL, Fok HH, Sievers RE, Fang Q, Lee RJ. Fibrin Glue Alone and Skeletal Myoblasts in a Fibrin Scaffold Preserve Cardiac Function after Myocardial Infarction. ACTA ACUST UNITED AC 2004; 10:403-9. [PMID: 15165457 DOI: 10.1089/107632704323061762] [Citation(s) in RCA: 286] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Current efforts in cardiac tissue engineering center around the use of scaffolds that deliver cells to the epicardial surface. In this study, we examined the effects of fibrin glue as an injectable scaffold and wall support in ischemic myocardium. The left coronary artery of rats was occluded for 17 min, followed by reperfusion. Echocardiography was performed 8 days after infarction. One to 2 days later, either 0.5% bovine serum albumin (BSA) in phosphate-buffered saline, fibrin glue alone, skeletal myoblasts alone, or skeletal myoblasts in fibrin glue were injected into the ischemic left ventricle. Echocardiography was again performed 5 weeks after injection. The animals were then sacrificed and the hearts were fresh frozen and sectioned for histology and immunohistochemistry. Both the fractional shortening (FS) and infarct wall thickness of the BSA group decreased significantly after 5 weeks (p = 0.0005 and 0.02, respectively). In contrast, both measurements for the fibrin glue group, cells group, and cells in fibrin glue group did not change significantly (FS: p = 0.18, 0.89, and 0.19, respectively; wall thickness: p = 0.40, 0.44, 0.43, respectively). Fibrin glue is capable of preserving infarct wall thickness and cardiac function after a myocardial infarction in rats and may be useful as a biomaterial scaffold for myocardial cell transplantation.
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Affiliation(s)
- Karen L Christman
- University of California Berkeley and San Francisco Joint Bioengineering Graduate Group, San Francisco, California, USA
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Abstract
Skeletal myogenesis is a well-studied differentiation process. However, despite the identification and functional characterization of the myogenic basic HLH transcription factors, molecular details are still lacking. With the advent of microarray technology, it has become possible to look at changes in gene expression profiles in a biological process on an unprecedented scale. In this study, we applied this technology to profile gene expression during the in vitro differentiation of an established myoblast cell line, C2C12. We report over 1500 genes whose expression is altered when these cells differentiate, including 624, or about 40% of the total number of genes, with unknown functions. This analysis reveals the existence of 12 groups of coordinately regulated genes that are expressed in temporal waves of gene expression prior to the transcriptional induction of myogenin. Among these are multiple families of transcription factors that are important for the process of myogenesis. In addition, the induction of the Notch signaling pathway suggests that previously unappreciated intercellular signaling occurs during myogenic differentiation. These results provide a molecular description of the skeletal myogenesis up to the activation of myogenin.
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Affiliation(s)
- Ivan Delgado
- Department of Molecular Physiology and Biophysics, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA
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Bonafè F, Muscari C, Guarnieri C, Caldarera CM. [Regeneration of infarcted cardiac tissue: the route of stem cells]. Ital Heart J Suppl 2003; 4:299-305. [PMID: 12784765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/02/2023]
Abstract
The ventricular remodeling following an acute myocardial infarction generates a non-contractile fibrous scare which might provoke cardiac failure. Several techniques aimed at recovering myocardial performance through the utilization of stem cells have been investigated in these last years. Embryonal stem cells, although they are characterized by an elevated differentiation potential, present technical and ethical concerns. Thus, most studies have been addressed towards adult (somatic) stem cells. Three categories of adult stem cells are now mainly investigated: a) satellite cells from skeletal muscle, b) mesenchymal stem cells from bone marrow, c) stem cells which are eventually present in the cardiac tissue. Skeletal myoblasts, even if they are not able to differentiate in cardiomyocytes, can improve cardiac contractility at the level of the fibrous scare which substitutes the necrotic area. It is also possible to isolate stem cells from bone marrow which can originate several cell lines, among them cardiac muscle cells and endothelial cells. Finally, more recent studies have demonstrated that resident cardiomyocytes maintain the capability to duplicate: therefore, a population of myocardial progenitors might be able to replicate and repair the damaged tissue. A deeper investigation of these findings in the clinical field could lead to the identification of new therapeutic strategies aimed at ameliorating the cardiac performance of the infarcted patients for short and long periods.
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Affiliation(s)
- Francesca Bonafè
- Centro Ricerche sul Metabolismo Cardiaco Dipartimento di Biochimica G. Moruzzi, Università degli Studi Via Irnerio, 48 40126 Bologna
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Chuang WJ, Yeh IJ, Hsieh YH, Liu PP, Chen SW, Jeng WY. 1H, 15N and 13C resonance assignments for the DNA-binding domain of myocyte nuclear factor (Foxk1). J Biomol NMR 2002; 24:75-76. [PMID: 12449423 DOI: 10.1023/a:1020616926152] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
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Anilkumar N, Annis DS, Mosher DF, Adams JC. Trimeric assembly of the C-terminal region of Thrombospondin-1 or Thrombospondin-2 is necessary for cell spreading and fascin spike organisation. J Cell Sci 2002; 115:2357-66. [PMID: 12006620 DOI: 10.1242/jcs.115.11.2357] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Thrombospondin-1 (TSP-1) and the highly related protein thrombospondin-2(TSP-2) are trimeric extracellular molecules that have complex roles in wound healing, angiogenesis and matrix organisation. At the cellular level, TSP-1 supports cell adhesion and migration by the organisation of fascin spike cytoskeletal structures. To define the molecular requirements for assembly of fascin spikes by thrombospondins, we developed a panel of recombinant protein units of TSP-1 and TSP-2; these were designed according to the domain boundaries and included matched monomeric and trimeric units. These proteins were tested for their effects on cell attachment and fascin spike organisation using C2C12 skeletal myoblasts and vascular smooth muscle cells. In monomeric units, cell attachment activity was localised to the type 1 repeats or type 3 repeats/C-terminal globule, and both regions need to be present in the same molecule for maximal activity. On a molar basis, cell-attachment activities with monomeric units were low compared with intact TSP-1, and no monomeric unit induced cell spreading. Trimeric versions of the type 1 repeats were more adhesive but did not induce cell spreading. Strikingly, trimers that contained the type 3 repeats/C-terminal globule of either TSP-1 or TSP-2 supported cell spreading and fascin spike organisation, producing a similar activity to intact TSP-1. We conclude that trimeric assembly of the highly conserved TSP C-terminal region is necessary for organisation of the fascin-based cytoskeletal structures that are needed for thrombospondin-induced cell motility.
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Affiliation(s)
- Narayanapanicker Anilkumar
- MRC Laboratory for Molecular Cell Biology and Department of Biochemistry and Molecular Biology, University College London, London, WC1E 6BT, UK
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LUCY JA, RINALDINI LM. The amino acid metabolism of differentiating skeletal myoblasts in vitro. Exp Cell Res 1959; 17:385-98. [PMID: 13672195 DOI: 10.1016/0014-4827(59)90059-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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