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Wei SY, Chen PY, Tsai MC, Hsu TL, Hsieh CC, Fan HW, Chen TH, Xie RH, Chen GY, Chen YC. Enhancing the Repair of Substantial Volumetric Muscle Loss by Creating Different Levels of Blood Vessel Networks Using Pre-Vascularized Nerve Hydrogel Implants. Adv Healthc Mater 2024; 13:e2303320. [PMID: 38354361 DOI: 10.1002/adhm.202303320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 02/06/2024] [Indexed: 02/16/2024]
Abstract
Volumetric muscle loss (VML), a severe muscle tissue loss from trauma or surgery, results in scarring, limited regeneration, and significant fibrosis, leading to lasting reductions in muscle mass and function. A promising approach for VML recovery involves restoring vascular and neural networks at the injury site, a process not extensively studied yet. Collagen hydrogels have been investigated as scaffolds for blood vessel formation due to their biocompatibility, but reconstructing blood vessels and guiding innervation at the injury site is still difficult. In this study, collagen hydrogels with varied densities of vessel-forming cells are implanted subcutaneously in mice, generating pre-vascularized hydrogels with diverse vessel densities (0-145 numbers/mm2) within a week. These hydrogels, after being transplanted into muscle injury sites, are assessed for muscle repair capabilities. Results showed that hydrogels with high microvessel densities, filling the wound area, effectively reconnected with host vasculature and neural networks, promoting neovascularization and muscle integration, and addressing about 63% of the VML.
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Affiliation(s)
- Shih-Yen Wei
- Department of Materials Science and Engineering, National Tsing-Hua University, Hsinchu, 300044, Taiwan
| | - Po-Yu Chen
- Department of Materials Science and Engineering, National Tsing-Hua University, Hsinchu, 300044, Taiwan
| | - Min-Chun Tsai
- Department of Materials Science and Engineering, National Tsing-Hua University, Hsinchu, 300044, Taiwan
| | - Ting-Lun Hsu
- Department of Materials Science and Engineering, National Tsing-Hua University, Hsinchu, 300044, Taiwan
| | - Chia-Chang Hsieh
- Department of Materials Science and Engineering, National Tsing-Hua University, Hsinchu, 300044, Taiwan
| | - Hsiu-Wei Fan
- Department of Materials Science and Engineering, National Tsing-Hua University, Hsinchu, 300044, Taiwan
| | - Tzu-Hsuan Chen
- Department of Materials Science and Engineering, Carnegie Mellon University, Pittsburgh, PA, 15289, USA
| | - Ren-Hao Xie
- Department of Electrical and Computer Engineering, College of Electrical and Computer Engineering, National Yang Ming Chiao Tung University, Hsinchu, 300193, Taiwan
- Institute of Biomedical Engineering, College of Electrical and Computer Engineering, National Yang Ming Chiao Tung University, Hsinchu, 300193, Taiwan
| | - Guan-Yu Chen
- Department of Electrical and Computer Engineering, College of Electrical and Computer Engineering, National Yang Ming Chiao Tung University, Hsinchu, 300193, Taiwan
- Institute of Biomedical Engineering, College of Electrical and Computer Engineering, National Yang Ming Chiao Tung University, Hsinchu, 300193, Taiwan
- Department of Biological Science and Technology, National Yang Ming Chiao Tung University, Hsinchu, 300193, Taiwan
- Center for Intelligent Drug Systems and Smart Bio-devices (IDS2B), National Yang Ming Chiao Tung University, Hsinchu, 300193, Taiwan
| | - Ying-Chieh Chen
- Department of Materials Science and Engineering, National Tsing-Hua University, Hsinchu, 300044, Taiwan
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Wheibe E, Dalkin BH, Meltzer HC, Russ-Sellers R, Grier JT. The Multisystem effects of Long COVID Syndrome and Potential Benefits of Massage Therapy in Long COVID Care. Int J Ther Massage Bodywork 2024; 17:19-42. [PMID: 38486840 PMCID: PMC10911825 DOI: 10.3822/ijtmb.v17i1.767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2024] Open
Abstract
Background A major complication of infection with Severe Acute Respiratory Coronavirus 2 (SARS-CoV-2), the virus responsible for COVID-19, is the potential for Long COVID Syndrome. While the pathophysiology of Long COVID Syndrome has yet to be described, the disease presentation is characterized by long-term symptoms with debilitating effects on human health. A better understanding of Long COVID symptomology may open up new avenues for patient treatment such as massage therapy. Methods From the PubMed database, cohort studies that examined post-infection COVID sequelae published between January 1st, 2021 and April 30th, 2021 were selected to investigate patient demographics and symptoms. A review of massage therapy literature since 2000 in conjunction with identified Long COVID symptoms was performed. Results This systematic review identified 17 cohort studies across the world that investigated the symptomatology of patients suffering from post-COVID sequelae in multiple organ systems. We identified the pulmonary and nervous systems to be the organ systems most affected with post-COVID sequelae, with PTSD, fatigue, dyspnea, cough, sleep disturbances, loss of smell, abdominal pain, and decreased appetite as the most common symptoms reported by >20% of Long COVID patients. Massage therapy was historically found to provide benefits to patients experiencing similar symptoms to those identified in Long COVID. Conclusions Recognizing the need for new approaches to treatment for Long COVID Syndrome, we identify massage therapy as a potential therapeutic treatment to positively impact the organ systems affected by Long COVID, especially the high-incident symptoms, and improve patient quality of life.
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Affiliation(s)
- Elias Wheibe
- Department of Biomedical Sciences, University of South Carolina School of Medicine Greenville, Greenville, SC
| | - Benjamin H. Dalkin
- Department of Biomedical Sciences, University of South Carolina School of Medicine Greenville, Greenville, SC
| | - Haley C. Meltzer
- Department of Biomedical Sciences, University of South Carolina School of Medicine Greenville, Greenville, SC
| | | | - Jennifer T. Grier
- Department of Biomedical Sciences, University of South Carolina School of Medicine Greenville, Greenville, SC
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Balch MHH, Harris H, Chugh D, Gnyawali S, Rink C, Nimjee SM, Arnold WD. Ischemic stroke-induced polyaxonal innervation at the neuromuscular junction is attenuated by robot-assisted mechanical therapy. Exp Neurol 2021; 343:113767. [PMID: 34044000 DOI: 10.1016/j.expneurol.2021.113767] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 04/30/2021] [Accepted: 05/22/2021] [Indexed: 01/12/2023]
Abstract
Ischemic stroke is a leading cause of disability world-wide. Mounting evidence supports neuromuscular pathology following stroke, yet mechanisms of dysfunction and therapeutic action remain undefined. The objectives of our study were to investigate neuromuscular pathophysiology following ischemic stroke and to evaluate the therapeutic effect of Robot-Assisted Mechanical massage Therapy (RAMT) on neuromuscular junction (NMJ) morphology. Using an ischemic stroke model in male rats, we demonstrated longitudinal losses of muscle contractility and electrophysiological estimates of motor unit number in paretic hindlimb muscles within 21 days of stroke. Histological characterization demonstrated striking pre- and postsynaptic alterations at the NMJ. Stroke prompted enlargement of motor axon terminals, acetylcholine receptor (AChR) area, and motor endplate size. Paretic muscle AChRs were also more homogenously distributed across motor endplates, exhibiting fewer clusters and less fragmentation. Most interestingly, NMJs in paretic muscle exhibited increased frequency of polyaxonal innervation. This finding of increased polyaxonal innervation in stroke-affected skeletal muscle suggests that reduction of motor unit number following stroke may be a spurious artifact due to overlapping of motor units rather than losses. Furthermore, we tested the effects of RAMT - which we recently showed to improve motor function and protect against subacute myokine disturbance - and found significant attenuation of stroke-induced NMJ alterations. RAMT not only normalized the post-stroke presentation of polyaxonal innervation but also mitigated postsynaptic expansion. These findings confirm complex neuromuscular pathophysiology after stroke, provide mechanistic direction for ongoing research, and inform development of future therapeutic strategies. SIGNIFICANCE: Ischemic stroke is a leading contributor to chronic disability, and there is growing evidence that neuromuscular pathology may contribute to the impact of stroke on physical function. Following ischemic stroke in a rat model, there are progressive declines of motor unit number estimates and muscle contractility. These changes are paralleled by striking pre- and postsynaptic maladaptive changes at the neuromuscular junction, including polyaxonal innervation. When administered to paretic hindlimb muscle, Robot-Assisted Mechanical massage Therapy - previously shown to improve motor function and protect against subacute myokine disturbance - prevents stroke-induced neuromuscular junction alterations. These novel observations provide insight into the neuromuscular response to cerebral ischemia, identify peripheral mechanisms of functional disability, and present a therapeutic rehabilitation strategy with clinical relevance.
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Affiliation(s)
- Maria H H Balch
- Department of Biomedical Education and Anatomy, The Ohio State University College of Medicine, Columbus, OH, USA; Department of Neurosurgery, The Ohio State University Wexner Medical Center, Columbus, OH, USA
| | - Hallie Harris
- Department of Neurosurgery, The Ohio State University Wexner Medical Center, Columbus, OH, USA
| | - Deepti Chugh
- Department of Neurology, The Ohio State University Wexner Medical Center, Columbus, OH, USA
| | - Surya Gnyawali
- Department of Neurosurgery, The Ohio State University Wexner Medical Center, Columbus, OH, USA
| | - Cameron Rink
- Department of Neurosurgery, The Ohio State University Wexner Medical Center, Columbus, OH, USA
| | - Shahid M Nimjee
- Department of Neurosurgery, The Ohio State University Wexner Medical Center, Columbus, OH, USA; Department of Neuroscience, The Ohio State University Wexner Medical Center, Columbus, OH, USA
| | - W David Arnold
- Department of Neurology, The Ohio State University Wexner Medical Center, Columbus, OH, USA; Department of Physical Medicine and Rehabilitation, The Ohio State University Wexner Medical Center, Columbus, OH, USA; Department of Neuroscience, The Ohio State University Wexner Medical Center, Columbus, OH, USA; Department of Physiology and Cell Biology, The Ohio State University Wexner Medical Center, Columbus, OH, USA.
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Carroll K, Yiu EM, Ryan MM, Kennedy RA, de Valle K. The effects of calf massage in boys with Duchenne muscular dystrophy: a prospective interventional study. Disabil Rehabil 2020; 43:3803-3809. [PMID: 32356505 DOI: 10.1080/09638288.2020.1753829] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Purpose: We explored the effects of standardized calf massage in ambulant boys with Duchenne muscular dystrophy (DMD) using a prospective study design.Materials and Methods: Twenty boys completed two study visits, 1 week apart. At both visits, each leg received a 10-min calf massage (intervention) and a 10-min control rest period (placebo) in randomized order. Muscle length of calf and hamstrings and gastrocnemius stiffness were measured by a blinded assessor before and after intervention and placebo. Measures of gait function (timed 10-m walk/run and spatio-temporal gait parameters); gastrocnemius muscle ultrasound findings; participant perception of leg pain, stiffness and effort of walking and general psychological well-being were also collected.Results: Consistent significant small increases in muscle length of soleus, gastrocnemius and hamstrings were recorded post-massage, and gastrocnemius stiffness decreased. Small changes in gastrocnemius and soleus length only were also recorded following the control rest period. Gait function and general well-being remained stable throughout. Measurement across both study visits suggested that gains in muscle length may be cumulative with repeated massage.Conclusions: Calf massage is safe and associated with benefits to muscle length and stiffness for ambulant boys with DMD.Implications for RehabilitationIn a small sample of boys with Duchenne muscular dystrophy, calf massage was found to be safe, well-tolerated and associated with increased muscle length and decreased stiffness.The use of massage may assist in managing muscle length in boys with Duchenne muscular dystrophy.
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Affiliation(s)
- Kate Carroll
- Department of Neurology, The Royal Children's Hospital, Melbourne, VIC, Australia.,Murdoch Children's Research Institute, Melbourne, VIC, Australia.,Department of Physiotherapy, The University of Melbourne, Melbourne, VIC, Australia
| | - Eppie M Yiu
- Department of Neurology, The Royal Children's Hospital, Melbourne, VIC, Australia.,Murdoch Children's Research Institute, Melbourne, VIC, Australia.,Department of Paediatrics, The University of Melbourne, Melbourne, VIC, Australia
| | - Monique M Ryan
- Department of Neurology, The Royal Children's Hospital, Melbourne, VIC, Australia.,Murdoch Children's Research Institute, Melbourne, VIC, Australia.,Department of Paediatrics, The University of Melbourne, Melbourne, VIC, Australia
| | - Rachel A Kennedy
- Department of Neurology, The Royal Children's Hospital, Melbourne, VIC, Australia.,Murdoch Children's Research Institute, Melbourne, VIC, Australia
| | - Katy de Valle
- Department of Neurology, The Royal Children's Hospital, Melbourne, VIC, Australia.,Murdoch Children's Research Institute, Melbourne, VIC, Australia
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Huang Y, Pan M, Shu H, He B, Zhang F, Sun L. Vascular endothelial growth factor enhances tendon-bone healing by activating Yes-associated protein for angiogenesis induction and rotator cuff reconstruction in rats. J Cell Biochem 2019; 121:2343-2353. [PMID: 31633245 DOI: 10.1002/jcb.29457] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Accepted: 10/10/2019] [Indexed: 12/21/2022]
Abstract
Local angiogenesis following rotator cuff reconstruction is crucial for tendon-bone healing. The current research on the mechanism underlying angiogenesis that promotes tendon-bone healing is scarce. This study investigates the mechanism underlying vascular endothelial growth factor (VEGF)-Hippo signaling pathway's involvement in tendon-bone healing following rotator cuff reconstruction. Verteporfin, the inhibitor of the Yes-associated protein (YAP), was used to mechanically test and analyze two groups of tensile-failure loads following rotator cuff reconstruction and to detect collagen and angiogenesis-related marker expressions in the tendon. The interaction mechanism of the VEGF-Hippo signaling pathway was assessed using human umbilical vein endothelial cells (HUVECs). The diameter of the supraspinatus tendon reduced following verteporfin treatment. Mechanical tests revealed that verteporfin significantly reduces the tensile-failure load of the supraspinatus tendon. Verteporfin significantly reduces collagen 1 (Col 1), Col 3, Angiopoietin 2, CD31, Von Willebrand factor, CTGF, and CYR61 expressions. In HUVECs, VEGF activates VEGF receptors and inhibits LATS and YAP phosphorylation. YAP is then transferred to the nucleus to further activate downstream pathways. Therefore, verteporfin can inhibit VEGF-induced YAP pathway activation by inhibiting YAP activity. Angiogenesis in tendon-bone healing following rotator cuff reconstruction requires VEGF-Hippo signaling pathway synergy.
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Affiliation(s)
- Yao Huang
- Sports Medicine Center, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Min Pan
- Department of Dermatology, Nanjing First Hospital, Nanjing, China
| | - Hao Shu
- Sports Medicine Center, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Bing He
- Sports Medicine Center, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Fucheng Zhang
- Sports Medicine Center, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Luning Sun
- Sports Medicine Center, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
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Luna GLF, Russo TL, Sabadine MA, Estrada‐Bonilla YC, Andrade ALM, Brassolatti P, Anibal FF, Leal ÂMO. Effects of mesenchymal stromal cells on motor function and collagen in the skeletal muscles of rats with type I diabetes. Int J Exp Pathol 2019; 100:359-368. [PMID: 32026546 PMCID: PMC7042733 DOI: 10.1111/iep.12340] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Revised: 11/26/2019] [Accepted: 12/01/2019] [Indexed: 12/12/2022] Open
Abstract
The present study aimed to evaluate the effects of mesenchymal stromal cell (MSC) transplantation on motor function and collagen organization in the muscles of rats with type 1 diabetes mellitus. Male Wistar rats were randomly assigned to three groups: control (C), diabetic (DM) and diabetic treated with MSCs (DM-MSCs). Diabetes was induced by streptozotocin (50 µg/kg). Bone marrow cells were isolated from the tibia and femur. After 10 weeks of DM induction, the DM-MSC rats received four i.p. injections of MSCs (1 × 106). Ten weeks after MSC transplantation, motor performance was evaluated by the rotarod test and the anterior tibial (TA) muscles were collected for morphometric and quantification of collagen birefringence by polarizing microscopy analysis. Motor performance of the DM group was significantly reduced when compared to the C group and increased significantly in the DM + MSC group. The TA muscle mass was significantly reduced in the DM and DM + MSC groups compared to the C group. The connective tissue increased in the DM group compared to the C group and decreased in the DM + MSC group. The percentage collagen birefringence decreased significantly in the DM group when compared to the C group and increased in the DM + MSC group. Motor performance was positively correlated with collagen birefringence and negatively correlated with percentage of connective tissue. The results indicate that MSC transplantation improves both motor function and the collagen macromolecular organization in type 1 DM.
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Affiliation(s)
- Genoveva L. F. Luna
- Department of MedicineFederal University of São Carlos (UFSCar)São CarlosBrazil
| | - Thiago L. Russo
- Department of Physical TherapyFederal University of São CarlosSão CarlosBrazil
| | - Maria A. Sabadine
- Department of MedicineFederal University of São Carlos (UFSCar)São CarlosBrazil
| | | | - Ana L. M. Andrade
- Department of Physical TherapyFederal University of São CarlosSão CarlosBrazil
| | - Patricia Brassolatti
- Department of Morphology and PathologyFederal University of São CarlosSão CarlosBrazil
| | - Fernanda F. Anibal
- Department of Morphology and PathologyFederal University of São CarlosSão CarlosBrazil
| | - Ângela M. O. Leal
- Department of Physical TherapyFederal University of São CarlosSão CarlosBrazil
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Self-Assessments of Standardized Scalp Massages for Androgenic Alopecia: Survey Results. Dermatol Ther (Heidelb) 2019; 9:167-178. [PMID: 30671883 PMCID: PMC6380978 DOI: 10.1007/s13555-019-0281-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2018] [Indexed: 12/25/2022] Open
Abstract
Introduction Standardized scalp massages (SSMs) improve hair thickness in nonbalding men, but their effects on androgenic alopecia (AGA) have not yet been evaluated. The objective of this study was to investigate the effect of SSMs on self-assessed AGA sufferers (SAGASs). Methods Between October 2016 and October 2017, 1899 SAGASs searching online for hair loss treatments beyond AGA management drugs accessed literature explaining SSMs as a potential therapy for AGA, then watched a demonstration video detailing twice-daily, 20-min SSMs segmented by three rotational scalp regions using hand-generated presses, pinches, and stretches. In December 2017, SAGASs were contacted once to participate in a retrospective survey study to assess SSM adherence and hair changes. Age, gender, hair loss region and gradient, diet, supplement and topical use, AGA management drug use, estimations for minutes daily and months of massaging, and self-perceived hair changes were reported. Some participants also submitted photosets documenting hair changes throughout SSM adherence. Results A total of 340 (17.9%) respondents completed the survey, and 327 (17.2%) reported attempting the SSMs. SSM participants reported a median daily massage effort of 11–20 min and mean adherence of 7.4 ± 6.6 months, with 68.9% reporting hair loss stabilization or regrowth. Estimated minutes daily, months, and total SSM effort (i.e., minutes daily × months) were positively associated with self-perceived hair changes. On average, perceived hair loss stabilization and regrowth occurred after 36.3 h of SSM effort. Results did not vary across age, gender, Norwood gradient, or concomitant supplement, topical, finasteride, minoxidil, or microneedling use. However, hair change improvements were marginally lower for participants reporting diffuse versus frontal/temporal or vertex thinning. Conclusions While further research is warranted, these results align with previous findings and suggest the potential for SSMs to improve AGA. Electronic supplementary material The online version of this article (10.1007/s13555-019-0281-6) contains supplementary material, which is available to authorized users.
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8
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Tseng C, Sinha K, Pan H, Cui Y, Guo P, Lin CY, Yang F, Deng Z, Eltzschig HK, Lu A, Huard J. Markers of Accelerated Skeletal Muscle Regenerative Response in Murphy Roths Large Mice: Characteristics of Muscle Progenitor Cells and Circulating Factors. Stem Cells 2019; 37:357-367. [PMID: 30537304 DOI: 10.1002/stem.2957] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 11/06/2018] [Accepted: 11/14/2018] [Indexed: 12/19/2022]
Abstract
The "super-healing" Murphy Roths Large (MRL/MpJ) mouse possesses a superior regenerative capacity for repair of many tissues, which makes it an excellent animal model for studying molecular and cellular mechanisms during tissue regeneration. As the role of muscle progenitor cells (MPCs) in muscle-healing capacity of MRL/MpJ mice has not been previously studied, we investigated the muscle regenerative capacity of MRL/MpJ mice following muscle injury, and the results were compared to results from C57BL/6J (B6) age-matched control mice. Our results show that muscle healing upon cardiotoxin injury was accelerated in MRL/MpJ mice and characterized by reduced necrotic muscle area, reduced macrophage infiltration, and more regenerated myofibers (embryonic myosin heavy chain+/centronucleated fibers) at 3, 5, and 12 days postinjury, when compared to B6 age-matched control mice. These observations were associated with enhanced function of MPCs, including improved cell proliferation, differentiation, and resistance to stress, as well as increased muscle regenerative potential when compared to B6 MPCs. Mass spectrometry of serum proteins revealed higher levels of circulating antioxidants in MRL/MpJ mice when compared to B6 mice. Indeed, we found relatively higher gene expression of superoxide dismutase 1 (Sod1) and catalase (Cat) in MRL/MpJ MPCs. Depletion of Sod1 or Cat by small interfering RNA impaired myogenic potential of MRL/MpJ MPCs, indicating a role for these antioxidants in muscle repair. Taken together, these findings provide evidence that improved function of MPCs and higher levels of circulating antioxidants play important roles in accelerating muscle-healing capacity of MRL/MpJ mice. Stem Cells 2019;37:357-367.
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Affiliation(s)
- Chieh Tseng
- Department of Orthopaedic Surgery, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Krishna Sinha
- Department of Orthopaedic Surgery, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Haiying Pan
- Department of Orthopaedic Surgery, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Yan Cui
- Department of Orthopaedic Surgery, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Ping Guo
- Department of Orthopaedic Surgery, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, Texas, USA.,Center for Regenerative Sports Medicine, Steadman Philippon Research Institute, Vail, Colorado, USA
| | - Chih Yi Lin
- Department of Orthopaedic Surgery, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Fan Yang
- Department of Traumatic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Zhenhan Deng
- Department of Sports Medicine, Shenzhen Second People's Hospital, Shenzhen, Guangzhou, People's Republic of China
| | - Holger K Eltzschig
- Department of Anesthesiology, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Aiping Lu
- Department of Orthopaedic Surgery, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, Texas, USA.,Center for Regenerative Sports Medicine, Steadman Philippon Research Institute, Vail, Colorado, USA
| | - Johnny Huard
- Department of Orthopaedic Surgery, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, Texas, USA.,Center for Regenerative Sports Medicine, Steadman Philippon Research Institute, Vail, Colorado, USA
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9
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Gigliotti D, Xu MC, Davidson MJ, Macdonald PB, Leiter JRS, Anderson JE. Fibrosis, low vascularity, and fewer slow fibers after rotator-cuff injury. Muscle Nerve 2017; 55:715-726. [PMID: 27571286 DOI: 10.1002/mus.25388] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2016] [Revised: 08/15/2016] [Accepted: 08/23/2016] [Indexed: 01/08/2023]
Abstract
INTRODUCTION Rotator-cuff injury (RCI) represents 50% of shoulder injuries, and prevalence increases with age. Even with successful tendon repair, muscle and joint function may not return. METHODS To explore the dysfunction, supraspinatus and ipsilateral deltoid (control) muscles were biopsied during arthroscopic RCI repair for pair-wise histological and protein-expression studies. RESULTS Supraspinatus showed fiber atrophy (P < 0.0001), fibrosis (by Sirius Red, P = 0.05), reduced vascular density (P < 0.001), and a lower proportion of slow fibers (P < 0.0001) compared with the ipsilateral control muscle. There were also higher levels of atrogin-1 (P = 0.05), vascular endothelial growth factor (VEGF, P < 0.01), and dystrophin (P < 0.008, relative to fiber diameter) versus control. CONCLUSIONS Adaptive changes in vascular endothelial growth factor and dystrophin were likely associated with reduced vascular supply, fatigue resistance, and fibrosis, accompanied by disuse atrophy from mechanical unloading of supraspinatus after tendon tear. Treatment to promote growth and vascularity in atrophic supraspinatus muscle may help improve functional outcome after surgical repair. Muscle Nerve 55: 715-726, 2017.
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Affiliation(s)
- Deanna Gigliotti
- Department of Biological Sciences, Faculty of Science, University of Manitoba, 212 Biological Sciences Building, 50 Sifton Road, Winnipeg, MB, R3T 2N2, Canada
| | - Mark C Xu
- Faculty of Health Sciences College of Medicine Departments of Surgery (Orthopedics) at the University of Manitoba, Winnipeg, Canada
| | - Michael J Davidson
- Faculty of Health Sciences College of Medicine Department of Radiology at the University of Manitoba, Winnipeg, Canada
| | - Peter B Macdonald
- Faculty of Health Sciences College of Medicine Departments of Surgery (Orthopedics) at the University of Manitoba, Winnipeg, Canada.,Pan Am Clinic, Winnipeg, Canada
| | - Jeff R S Leiter
- Faculty of Health Sciences College of Medicine Departments of Surgery (Orthopedics) at the University of Manitoba, Winnipeg, Canada.,Pan Am Clinic, Winnipeg, Canada
| | - Judy E Anderson
- Department of Biological Sciences, Faculty of Science, University of Manitoba, 212 Biological Sciences Building, 50 Sifton Road, Winnipeg, MB, R3T 2N2, Canada
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Smythe G. Role of Growth Factors in Modulation of the Microvasculature in Adult Skeletal Muscle. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2016; 900:161-83. [PMID: 27003400 DOI: 10.1007/978-3-319-27511-6_7] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Post-natal skeletal muscle is a highly plastic tissue that has the capacity to regenerate rapidly following injury, and to undergo significant modification in tissue mass (i.e. atrophy/hypertrophy) in response to global metabolic changes. These processes are reliant largely on soluble factors that directly modulate muscle regeneration and mass. However, skeletal muscle function also depends on an adequate blood supply. Thus muscle regeneration and changes in muscle mass, particularly hypertrophy, also demand rapid changes in the microvasculature. Recent evidence clearly demonstrates a critical role for soluble growth factors in the tight regulation of angiogenic expansion of the muscle microvasculature. Furthermore, exogenous modulation of these factors has the capacity to impact directly on angiogenesis and thus, indirectly, on muscle regeneration, growth and performance. This chapter reviews recent developments in understanding the role of growth factors in modulating the skeletal muscle microvasculature, and the potential therapeutic applications of exogenous angiogenic and anti-angiogenic mediators in promoting effective growth and regeneration, and ameliorating certain diseases, of skeletal muscle.
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Affiliation(s)
- Gayle Smythe
- Faculty of Science, Charles Sturt University, Albury, NSW, 789, 2640, Australia.
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11
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Fei F, Zhu DL, Tao LJ, Huang BZ, Zhang HH. Protective effect of ATP on skeletal muscle satellite cells damaged by H₂O₂. ACTA ACUST UNITED AC 2015; 35:76-81. [PMID: 25673197 DOI: 10.1007/s11596-015-1392-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2014] [Revised: 11/12/2014] [Indexed: 11/26/2022]
Abstract
This study investigated the protective effect of ATP on skeletal muscle satellite cells damaged by H₂O₂in neonatal rats and the possible mechanism. The skeletal muscle satellite cells were randomly divided into four groups: normal group, model group (cells treated with 0.1 mmol/L H₂O₂for 50 s), protection group (cells treated with 16, 8, 4, 2, 1, 0.5, or 0.25 mmol/L ATP for 24 h, and then with 0.1 mmol/L H₂O₂for 50 s), proliferation group (cells treated with 16, 8, 4, 2, 1, 0.5, or 0.25 mmol/L ATP for 24 h). MTT assay, FITC+PI+DAPI fluorescent staining, Giemsa staining and immunofluorescence were performed to examine cell viability and apoptosis, and apoptosis-related proteins. The results showed that the survival rate of skeletal muscle satellite cells was decreased and the apoptosis rate was increased after H₂O₂treatment (P<0.01). Different doses of ATP had different effects on skeletal muscle satellite cells damaged by H₂O₂: the survival rate of muscle satellite cells treated with ATP at 4, 2, or 1 mmol/L was increased. The protective effect was most profound on cells treated with 2 mmol/L ATP. Immunofluorescence showed that ATP could increase the number of Bcl-2-positive cells (P<0.01) and decrease the number of the Bax-positive cells (P<0.01). It was concluded that ATP could protect skeletal muscle satellite cells against H₂O₂damage in neonatal rats, which may be attributed to the up-regulation of the expression of Bcl-2 and down-regulation of Bax, resulting in the suppression of apoptosis.
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Affiliation(s)
- Fei Fei
- Department of Biology, School of Life Science, Nantong University, Nantong, 226019, China
| | - Dao-Li Zhu
- Department of Biology, School of Life Science, Nantong University, Nantong, 226019, China.
| | - Li-Jun Tao
- Department of Biology, School of Life Science, Nantong University, Nantong, 226019, China
| | - Bao-Zhu Huang
- Department of Biology, School of Life Science, Nantong University, Nantong, 226019, China
| | - Hong-Hong Zhang
- Department of Biology, School of Life Science, Nantong University, Nantong, 226019, China
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Sassoli C, Nosi D, Tani A, Chellini F, Mazzanti B, Quercioli F, Zecchi-Orlandini S, Formigli L. Defining the role of mesenchymal stromal cells on the regulation of matrix metalloproteinases in skeletal muscle cells. Exp Cell Res 2014; 323:297-313. [PMID: 24631289 DOI: 10.1016/j.yexcr.2014.03.003] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2013] [Revised: 03/01/2014] [Accepted: 03/03/2014] [Indexed: 12/11/2022]
Abstract
Recent studies indicate that mesenchymal stromal cell (MSC) transplantation improves healing of injured and diseased skeletal muscle, although the mechanisms of benefit are poorly understood. In the present study, we investigated whether MSCs and/or their trophic factors were able to regulate matrix metalloproteinase (MMP) expression and activity in different cells of the muscle tissue. MSCs in co-culture with C2C12 cells or their conditioned medium (MSC-CM) up-regulated MMP-2 and MMP-9 expression and function in the myoblastic cells; these effects were concomitant with the down-regulation of the tissue inhibitor of metalloproteinases (TIMP)-1 and -2 and with increased cell motility. In the single muscle fiber experiments, MSC-CM administration increased MMP-2/9 expression in Pax-7(+) satellite cells and stimulated their mobilization, differentiation and fusion. The anti-fibrotic properties of MSC-CM involved also the regulation of MMPs by skeletal fibroblasts and the inhibition of their differentiation into myofibroblasts. The treatment with SB-3CT, a potent MMP inhibitor, prevented in these cells, the decrease of α-smooth actin and type-I collagen expression induced by MSC-CM, suggesting that MSC-CM could attenuate the fibrogenic response through mechanisms mediated by MMPs. Our results indicate that growth factors and cytokines released by these cells may modulate the fibrotic response and improve the endogenous mechanisms of muscle repair/regeneration.
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Affiliation(s)
- Chiara Sassoli
- Dept. of Experimental and Clinical Medicine-Section of Anatomy and Histology, University of Florence, Largo Brambilla, 3, 50134, Florence, Italy
| | - Daniele Nosi
- Dept. of Experimental and Clinical Medicine-Section of Anatomy and Histology, University of Florence, Largo Brambilla, 3, 50134, Florence, Italy
| | - Alessia Tani
- Dept. of Experimental and Clinical Medicine-Section of Anatomy and Histology, University of Florence, Largo Brambilla, 3, 50134, Florence, Italy
| | - Flaminia Chellini
- Dept. of Experimental and Clinical Medicine-Section of Anatomy and Histology, University of Florence, Largo Brambilla, 3, 50134, Florence, Italy
| | - Benedetta Mazzanti
- Dept. of Experimental and Clinical Medicine-Section of Haematology, University of Florence, Largo Brambilla, 3, 50134, Florence, Italy
| | - Franco Quercioli
- CNR-National Institute of Optics (INO), Largo Enrico Fermi 6, 50125 Arcetri-Florence, Italy
| | - Sandra Zecchi-Orlandini
- Dept. of Experimental and Clinical Medicine-Section of Anatomy and Histology, University of Florence, Largo Brambilla, 3, 50134, Florence, Italy
| | - Lucia Formigli
- Dept. of Experimental and Clinical Medicine-Section of Anatomy and Histology, University of Florence, Largo Brambilla, 3, 50134, Florence, Italy.
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