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McGrath AM, Brohlin M, Wiberg R, Kingham PJ, Novikov LN, Wiberg M, Novikova LN. Long-Term Effects of Fibrin Conduit with Human Mesenchymal Stem Cells and Immunosuppression after Peripheral Nerve Repair in a Xenogenic Model. Cell Med 2018; 10:2155179018760327. [PMID: 32634185 PMCID: PMC6172997 DOI: 10.1177/2155179018760327] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/19/2017] [Revised: 01/07/2018] [Accepted: 01/12/2018] [Indexed: 12/22/2022]
Abstract
Introduction: Previously we showed that a fibrin glue conduit with human mesenchymal stem cells
(hMSCs) and cyclosporine A (CsA) enhanced early nerve regeneration. In this study long
term effects of this conduit are investigated. Methods: In a rat model, the sciatic nerve was repaired with fibrin conduit containing fibrin
matrix, fibrin conduit containing fibrin matrix with CsA treatment and fibrin conduit
containing fibrin matrix with hMSCs and CsA treatment, and also with nerve graft as
control. Results: At 12 weeks 34% of motoneurons of the control group regenerated axons through the
fibrin conduit. CsA treatment alone or with hMSCs resulted in axon regeneration of 67%
and 64% motoneurons respectively. The gastrocnemius muscle weight was reduced in the
conduit with fibrin matrix. The treatment with CsA or CsA with hMSCs induced recovery of
the muscle weight and size of fast type fibers towards the levels of the nerve graft
group. Discussion: The transplantation of hMSCs for peripheral nerve injury should be optimized to
demonstrate their beneficial effects. The CsA may have its own effect on nerve
regeneration.
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Affiliation(s)
- Aleksandra M McGrath
- Department of Integrative Medical Biology, Section for Anatomy, Umeå University, Umeå, Sweden.,Department of Surgical and Perioperative Science, Section for Hand and Plastic Surgery, Norrland's University Hospital, Umeå, Sweden
| | - Maria Brohlin
- Department of Integrative Medical Biology, Section for Anatomy, Umeå University, Umeå, Sweden.,Department of Clinical Microbiology, Infection and Immunology, Umeå University, Umeå, Sweden
| | - Rebecca Wiberg
- Department of Integrative Medical Biology, Section for Anatomy, Umeå University, Umeå, Sweden.,Department of Surgical and Perioperative Science, Section for Hand and Plastic Surgery, Norrland's University Hospital, Umeå, Sweden
| | - Paul J Kingham
- Department of Integrative Medical Biology, Section for Anatomy, Umeå University, Umeå, Sweden
| | - Lev N Novikov
- Department of Integrative Medical Biology, Section for Anatomy, Umeå University, Umeå, Sweden
| | - Mikael Wiberg
- Department of Integrative Medical Biology, Section for Anatomy, Umeå University, Umeå, Sweden.,Department of Surgical and Perioperative Science, Section for Hand and Plastic Surgery, Norrland's University Hospital, Umeå, Sweden
| | - Liudmila N Novikova
- Department of Integrative Medical Biology, Section for Anatomy, Umeå University, Umeå, Sweden
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Terena SML, Fernandes KPS, Bussadori SK, Deana AM, Mesquita-Ferrari RA. Systematic review of the synergist muscle ablation model for compensatory hypertrophy. Rev Assoc Med Bras (1992) 2017; 63:164-172. [DOI: 10.1590/1806-9282.63.02.164] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2016] [Accepted: 06/26/2016] [Indexed: 11/21/2022] Open
Abstract
Summary Objective: The aim was to evaluate the effectiveness of the experimental synergists muscle ablation model to promote muscle hypertrophy, determine the period of greatest hypertrophy and its influence on muscle fiber types and determine differences in bilateral and unilateral removal to reduce the number of animals used in this model. Method: Following the application of the eligibility criteria for the mechanical overload of the plantar muscle in rats, nineteen papers were included in the review. Results: The results reveal a greatest hypertrophy occurring between days 12 and 15, and based on the findings, synergist muscle ablation is an efficient model for achieving rapid hypertrophy and the contralateral limb can be used as there was no difference between unilateral and bilateral surgery, which reduces the number of animals used in this model. Conclusion: This model differs from other overload models (exercise and training) regarding the characteristics involved in the hypertrophy process (acute) and result in a chronic muscle adaptation with selective regulation and modification of fast-twitch fibers in skeletal muscle. This is an efficient and rapid model for compensatory hypertrophy.
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Tóth A, Fodor J, Vincze J, Oláh T, Juhász T, Zákány R, Csernoch L, Zádor E. The Effect of SERCA1b Silencing on the Differentiation and Calcium Homeostasis of C2C12 Skeletal Muscle Cells. PLoS One 2015; 10:e0123583. [PMID: 25893964 PMCID: PMC4404259 DOI: 10.1371/journal.pone.0123583] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2014] [Accepted: 03/04/2015] [Indexed: 12/12/2022] Open
Abstract
The sarcoplasmic/endoplasmic reticulum Ca2+ATPases (SERCAs) are the main Ca2+ pumps which decrease the intracellular Ca2+ level by reaccumulating Ca2+ into the sarcoplasmic reticulum. The neonatal SERCA1b is the major Ca2+ pump in myotubes and young muscle fibers. To understand its role during skeletal muscle differentiation its synthesis has been interfered with specific shRNA sequence. Stably transfected clones showing significantly decreased SERCA1b expression (cloneC1) were selected for experiments. The expression of the regulatory proteins of skeletal muscle differentiation was examined either by Western-blot at the protein level for MyoD, STIM1, calsequestrin (CSQ), and calcineurin (CaN) or by RT-PCR for myostatin and MCIP1.4. Quantitative analysis revealed significant alterations in CSQ, STIM1, and CaN expression in cloneC1 as compared to control cells. To examine the functional consequences of the decreased expression of SERCA1b, repeated Ca2+-transients were evoked by applications of 120 mM KCl. The significantly higher [Ca2+]i measured at the 20th and 40th seconds after the beginning of KCl application (112±3 and 110±3 nM vs. 150±7 and 135±5 nM, in control and in cloneC1 cells, respectively) indicated a decreased Ca2+-uptake capability which was quantified by extracting the maximal pump rate (454±41 μM/s vs. 144±24 μM/s, in control and in cloneC1 cells). Furthermore, the rate of calcium release from the SR (610±60 vs. 377±64 μM/s) and the amount of calcium released (843±75 μM vs. 576±80 μM) were also significantly suppressed. These changes were also accompanied by a reduced activity of CaN in cells with decreased SERCA1b. In parallel, cloneC1 cells showed inhibited cell proliferation and decreased myotube nuclear numbers. Moreover, while cyclosporineA treatment suppressed the proliferation of parental cultures it had no effect on cloneC1 cells. SERCA1b is thus considered to play an essential role in the regulation of [Ca2+]i and its ab ovo gene silencing results in decreased skeletal muscle differentiation.
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Affiliation(s)
- Adrienn Tóth
- Department of Physiology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - János Fodor
- Department of Physiology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - János Vincze
- Department of Physiology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Tamás Oláh
- Department of Physiology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Tamás Juhász
- Department of Anatomy, Histology and Embryology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Róza Zákány
- Department of Anatomy, Histology and Embryology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - László Csernoch
- Department of Physiology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
- * E-mail:
| | - Ernő Zádor
- Department of Biochemistry, Faculty of Medicine, University of Szeged, Szeged, Hungary
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N'Guessan BB, Sanchez H, Zoll J, Ribera F, Dufour S, Lampert E, Kindo M, Geny B, Ventura-Clapier R, Mettauer B. Oxidative capacities of cardiac and skeletal muscles of heart transplant recipients: mitochondrial effects of cyclosporin-A and its vehicle Cremophor-EL. Fundam Clin Pharmacol 2012; 28:151-60. [DOI: 10.1111/fcp.12002] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2011] [Revised: 08/31/2012] [Accepted: 09/11/2012] [Indexed: 01/24/2023]
Affiliation(s)
- Benoit Banga N'Guessan
- Service de Physiologie Clinique et des Explorations Fonctionnelles; équipe d'accueil EA3072 Hôpitaux Universitaires de Strasbourg; 67091 Strasbourg Cedex France
- Laboratoire de Physiologie, Pharmacologie et Phytothérapie; UFR SN, Université d'Abobo-Adjamé; 02 BP 801 Abidjan 02 Abidjan Côte d'Ivoire
- Department of Pharmacology and Toxicology; School of Pharmacy; College of Health Sciences; University of Ghana; PO Box KB 52 Korle Bu Accra Ghana
| | - Hervé Sanchez
- Département des facteurs humains; CRSSA; BP 87, 38702 La-Tronche Cedex France
| | - Joffrey Zoll
- Service de Physiologie Clinique et des Explorations Fonctionnelles; équipe d'accueil EA3072 Hôpitaux Universitaires de Strasbourg; 67091 Strasbourg Cedex France
| | - Florence Ribera
- Service de Physiologie Clinique et des Explorations Fonctionnelles; équipe d'accueil EA3072 Hôpitaux Universitaires de Strasbourg; 67091 Strasbourg Cedex France
| | - Stéphane Dufour
- Service de Physiologie Clinique et des Explorations Fonctionnelles; équipe d'accueil EA3072 Hôpitaux Universitaires de Strasbourg; 67091 Strasbourg Cedex France
| | - Eliane Lampert
- Service de Physiologie Clinique et des Explorations Fonctionnelles; équipe d'accueil EA3072 Hôpitaux Universitaires de Strasbourg; 67091 Strasbourg Cedex France
| | - Michel Kindo
- Service de chirurgie cardiaque Hôpitaux Universitaires de Strasbourg; 67091 Strasbourg Cedex France
| | - Bernard Geny
- Service de Physiologie Clinique et des Explorations Fonctionnelles; équipe d'accueil EA3072 Hôpitaux Universitaires de Strasbourg; 67091 Strasbourg Cedex France
| | - Renée Ventura-Clapier
- Signalisation et Physiopathologie Cardiaque U-769 INSERM; Université Paris-Sud; Châtenay-Malabry F-92296 France
| | - Bertrand Mettauer
- Service de Physiologie Clinique et des Explorations Fonctionnelles; équipe d'accueil EA3072 Hôpitaux Universitaires de Strasbourg; 67091 Strasbourg Cedex France
- Service de Cardiologie; Hôpitaux Civils de Colmar; 68024 Colmar Cedex France
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Pandorf CE, Jiang WH, Qin AX, Bodell PW, Baldwin KM, Haddad F. Calcineurin plays a modulatory role in loading-induced regulation of type I myosin heavy chain gene expression in slow skeletal muscle. Am J Physiol Regul Integr Comp Physiol 2009; 297:R1037-48. [PMID: 19657098 DOI: 10.1152/ajpregu.00349.2009] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
The role of calcineurin (Cn) in skeletal muscle fiber-type expression has been a subject of great interest because of reports indicating that it controls the slow muscle phenotype. To delineate the role of Cn in phenotype remodeling, particularly its role in driving expression of the type I myosin heavy chain (MHC) gene, we used a novel strategy whereby a profound transition from fast to slow fiber type is induced and examined in the absence and presence of cyclosporin A (CsA), a Cn inhibitor. To induce the fast-to-slow transition, we first subjected rats to 7 days of hindlimb suspension (HS) + thyroid hormone [triiodothyronine (T(3))] to suppress nearly all expression of type I MHC mRNA in the soleus muscle. HS + T(3) was then withdrawn, and rats resumed normal ambulation and thyroid state, during which vehicle or CsA (30 mg x kg(-1) x day(-1)) was administered for 7 or 14 days. The findings demonstrate that, despite significant inhibition of Cn, pre-mRNA, mRNA, and protein abundance of type I MHC increased markedly during reloading relative to HS + T(3) (P < 0.05). Type I MHC expression was, however, attenuated by CsA compared with vehicle treatment. In addition, type IIa and IIx MHC pre-mRNA, mRNA, and relative protein levels were increased in Cn-treated compared with vehicle-treated rats. These findings indicate that Cn has a modulatory role in MHC transcription, rather than a role as a primary regulator of slow MHC gene expression.
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Affiliation(s)
- Clay E Pandorf
- Department of Physiology and Biophysics, University of California, Irvine, Irvine, California 92697, USA
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Natali LH, Silva TSD, Ciena AP, Padoin MJ, Alves ÉPB, Aragão FA, Bertolini GRF. Efeitos da corrida em esteira em músculos sóleos de ratos encurtados por imobilização. REV BRAS MED ESPORTE 2008. [DOI: 10.1590/s1517-86922008000600003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
O objetivo deste trabalho foi verificar as adaptações de peso e comprimento do músculo sóleo de ratos Wistar machos, além da estimativa do total de sarcômeros em série e comprimento médio dos sarcômeros, quando submetidos a um processo de remobilização em esteira. Foram utilizados 18 ratos (Wistar), divididos em três grupos: GC - músculo sóleo esquerdo (MSE) imobilizado e remobilizado solto; G10 - MSE imobilizado e remobilizado em velocidade de 10m/min; e G12 (n = 6) - MSE imobilizado e remobilizado em velocidade de 12m/min. Os resultados mostraram as seguintes variações, peso muscular: GC -22,35% (p = 0,0089), G10 -12,52% (p = 0,0623), G12 -12,07%, (p = 0,0004); comprimento muscular: GC -5,47% (p = 0,0120), G10 -3,31% (p = 0,2868), G12 0,41% (p = 0,8987); estimativa de sarcômeros em série: GC -15,42% (p = 0,0047), G10 -10,87% (p = 0,0193), G12 -4,97 (p = 0,2409); comprimento de sarcômeros GC 11,16% (p = 0,0142), G10 9,31% (p = 0,1270), G12 5,58% (p = 0,1327). Conclui-se que G12 obteve maior eficácia após o período de imobilização, pois apresentou maior semelhança com o membro não imobilizado.
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Konno EAB, Alves ÉPB, Bertolini GRF, Barbieri CH, Mazzer N. Remobilização por alongamento estático cíclico em músculo sóleo de ratos imobilizados em encurtamento. REV BRAS MED ESPORTE 2008. [DOI: 10.1590/s1517-86922008000200008] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023] Open
Abstract
A fibra muscular tem grandes propriedades plásticas, respondendo a diferentes estímulos com o aumento ou diminuição de sua massa, comprimento e número de sarcômeros em série. O objetivo deste estudo foi analisar os efeitos do alongamento passivo estático em 3 séries diárias de 30 s e da remobilização livre, por um período de duas semanas, no músculo sóleo de ratos imobilizado em posição de encurtamento. Para isso, foram utilizados 12 ratos (Wistar) divididos em 2 grupos: G1 (n=6) - músculo sóleo esquerdo (MSE) imobilizado e solto na gaiola (GIS); G2 (n=6) - MSE imobilizado e alongado diariamente (GIA). Foram comparadas as variações encontradas entre o MSE e o MSD (direito) de cada grupo. As variáveis foram: peso muscular, comprimento muscular, número de sarcômeros em série e comprimento de sarcômeros. Os resultados das variáveis analisadas, comparando o MSE com o MSD foram: peso muscular: GIS=-23,16%, (p=0,0007), GIA-32,43% (p=0,0008); comprimento muscular: GIS=-5,47% (p=0,0120); GIA=-9,99% (p=0,0034); número de sarcômeros em série: GIS=-15,42% (p=0,0047); GIA=-8,08% (p=0,0008); comprimento do sarcômero: GIS=11,16% (p=0,0142); GIA=-1,92% (p=0,3783). Através desses resultados, pode-se concluir que nem o alongamento, nem a remobilização livre promovem a restauração na estrutura dos músculos esqueléticos submetidos à imobilização prolongada.
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Shefer G, Carmeli E, Rauner G, Yablonka-Reuveni Z, Benayahu D. Exercise running and tetracycline as means to enhance skeletal muscle stem cell performance after external fixation. J Cell Physiol 2008; 215:265-75. [PMID: 18064665 DOI: 10.1002/jcp.21306] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Prolonged limb immobilization, which is often the outcome of injury and illness, results in the atrophy of skeletal muscles. The basis of muscle atrophy needs to be better understood in order to allow development of effective countermeasures. The present study focused on determining whether skeletal muscle stem cells, satellite cells, are directly affected by long-term immobilization as well as on investigating the potential of pharmacological and physiological avenues to counterbalance atrophy-induced muscle deterioration. We used external fixation (EF), as a clinically relevant model, to gain insights into the relationships between muscle degenerative and regenerative conditions to the myogenic properties and abundance of bona fide satellite cells. Rats were treated with tetracycline (Tet) through the EF period, or exercise trained on a treadmill for 2 weeks after the cessation of the atrophic stimulus. EF induced muscle mass loss; declined expression of the muscle specific regulatory factors (MRFs) Myf5, MyoD, myogenin, and also of satellite cell numbers and myogenic differentiation aptitude. Tet enhanced the expression of MRFs, but did not prevent the decline of the satellite cell pool. After exercise running, however, muscle mass, satellite cell numbers (enumerated through the entire length of myofibers), and myogenic differentiation aptitude (determined by the lineal identity of clonal cultures of satellite cells) were re-gained to levels prior to EF. Together, our results point to Tet and exercise running as promising and relevant approaches for enhancing muscle recovery after atrophy.
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Affiliation(s)
- G Shefer
- Department of Cell and Developmental Biology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
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