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Iannuzzo F, Cicatiello AG, Sagliocchi S, Schiano E, Nappi A, Miro C, Stornaiuolo M, Mollica A, Tenore GC, Dentice M, Novellino E. Therapeutic Effect of an Ursolic Acid-Based Nutraceutical on Neuronal Regeneration after Sciatic Nerve Injury. Int J Mol Sci 2024; 25:902. [PMID: 38255977 PMCID: PMC10815361 DOI: 10.3390/ijms25020902] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 01/08/2024] [Accepted: 01/10/2024] [Indexed: 01/24/2024] Open
Abstract
Peripheral nerve injuries lead to severe functional impairments and long recovery times, with limited effectiveness and accessibility of current treatments. This has increased interest in natural bioactive compounds, such as ursolic acid (UA). Our study evaluated the effect of an oleolyte rich in UA from white grape pomace (WGPO) on neuronal regeneration in mice with induced sciatic nerve resection, administered concurrently with the induced damage (the WGPO group) and 10 days prior (the PRE-WGPO group). The experiment was monitored at two-time points (4 and 10 days) after injury. After 10 days, the WGPO group demonstrated a reduction in muscle atrophy, evidenced by an increased number and diameter of muscle fibers and a decreased Atrogin-1 and Murf-1 expression relative to the denervated control. It was also observed that 85.7% of neuromuscular junctions (NMJs) were fully innervated, as indicated by the colocalization of α-bungarotoxin and synaptophysin, along with the significant modulation of Oct-6 and S-100. The PRE-WGPO group showed a more beneficial effect on nerve fiber reformation, with a significant increase in myelin protein zero and 95.2% fully innervated NMJs, and a pro-hypertrophic effect in resting non-denervated muscles. Our findings suggest WGPO as a potential treatment for various conditions that require the repair of nerve and muscle injuries.
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Affiliation(s)
- Fortuna Iannuzzo
- Department of Pharmacy, G. d’Annunzio University of Chieti-Pescara, 66100 Chieti, Italy; (F.I.); (A.M.)
| | - Annunziata Gaetana Cicatiello
- Department of Clinical Medicine and Surgery, University of Naples Federico II, 80131 Napoli, Italy; (A.G.C.); (S.S.); (A.N.); (C.M.)
| | - Serena Sagliocchi
- Department of Clinical Medicine and Surgery, University of Naples Federico II, 80131 Napoli, Italy; (A.G.C.); (S.S.); (A.N.); (C.M.)
| | - Elisabetta Schiano
- Healthcare Food Research Center, Inventia Biotech s.r.l., S. S. Sannitica, 81020 Caserta, Italy; (E.S.); (E.N.)
| | - Annarita Nappi
- Department of Clinical Medicine and Surgery, University of Naples Federico II, 80131 Napoli, Italy; (A.G.C.); (S.S.); (A.N.); (C.M.)
| | - Caterina Miro
- Department of Clinical Medicine and Surgery, University of Naples Federico II, 80131 Napoli, Italy; (A.G.C.); (S.S.); (A.N.); (C.M.)
| | - Mariano Stornaiuolo
- Department of Pharmacy, University of Naples Federico II, Via Domenico Montesano 59, 80131 Napoli, Italy; (M.S.); (G.C.T.)
| | - Adriano Mollica
- Department of Pharmacy, G. d’Annunzio University of Chieti-Pescara, 66100 Chieti, Italy; (F.I.); (A.M.)
| | - Gian Carlo Tenore
- Department of Pharmacy, University of Naples Federico II, Via Domenico Montesano 59, 80131 Napoli, Italy; (M.S.); (G.C.T.)
| | - Monica Dentice
- Department of Clinical Medicine and Surgery, University of Naples Federico II, 80131 Napoli, Italy; (A.G.C.); (S.S.); (A.N.); (C.M.)
| | - Ettore Novellino
- Healthcare Food Research Center, Inventia Biotech s.r.l., S. S. Sannitica, 81020 Caserta, Italy; (E.S.); (E.N.)
- Faculty of Medicine and Surgery, Catholic University of the Sacred Heart, 00168 Roma, Italy
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Wu J, Matthias N, Bhalla S, Darabi R. Evaluation of the Therapeutic Potential of Human iPSCs in a Murine Model of VML. Mol Ther 2020; 29:121-131. [PMID: 32966776 DOI: 10.1016/j.ymthe.2020.09.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 08/12/2020] [Accepted: 09/03/2020] [Indexed: 02/08/2023] Open
Abstract
Volumetric muscle loss injury is a common health problem with long-term disabilities. One common treatment is using muscle flaps from donor site, which has limited potentials due to donor site availability and morbidity. Although several stem cell therapies have been evaluated so far, most suffer from limited availability, immune incompatibility, or differentiation potential. Therefore, induced pluripotent stem cells (iPSCs) have a great promise for this purpose due to their unique differentiation, self-renewal, and immunocompatibility. Current study was designed to determine therapeutic potential of human iPSCs (hiPSCs) in a mouse model of volumetric muscle loss. Muscles were subjected to excision to generate 30%-40% muscle loss. Next, hiPSCs were differentiated toward skeletal myogenic progenitors and used with fibrin hydrogel to reconstruct the lost muscle. Histologic evaluation of the treated muscles indicated abundant engraftment of donor-derived mature fibers expressing human markers. Donor-derived fibers were also positive for the presence of neuromuscular junction (NMJ), indicating their proper innervation. Evaluation of the engrafted region indicated the presence of donor-derived satellite cells expressing human markers and Pax7. Finally, in situ muscle function analysis demonstrated significant improvement of the muscle contractility in muscles treated with hiPSCs. These results therefore provide key evidence for the therapeutic potential of human iPSCs in volumetric muscle loss injuries.
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Affiliation(s)
- Jianbo Wu
- Center for Stem Cell and Regenerative Medicine (CSCRM), The Brown Foundation Institute of Molecular Medicine for the Prevention of Human Diseases (IMM), University of Texas Health Science Center at Houston, Houston, TX 77030, USA
| | - Nadine Matthias
- Center for Stem Cell and Regenerative Medicine (CSCRM), The Brown Foundation Institute of Molecular Medicine for the Prevention of Human Diseases (IMM), University of Texas Health Science Center at Houston, Houston, TX 77030, USA
| | - Shubhang Bhalla
- Center for Stem Cell and Regenerative Medicine (CSCRM), The Brown Foundation Institute of Molecular Medicine for the Prevention of Human Diseases (IMM), University of Texas Health Science Center at Houston, Houston, TX 77030, USA
| | - Radbod Darabi
- Center for Stem Cell and Regenerative Medicine (CSCRM), The Brown Foundation Institute of Molecular Medicine for the Prevention of Human Diseases (IMM), University of Texas Health Science Center at Houston, Houston, TX 77030, USA.
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Mice with an autosomal dominant Charcot-Marie-Tooth type 2O disease mutation in both dynein alleles display severe moto-sensory phenotypes. Sci Rep 2019; 9:11979. [PMID: 31427617 PMCID: PMC6700207 DOI: 10.1038/s41598-019-48431-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Accepted: 08/05/2019] [Indexed: 11/12/2022] Open
Abstract
Charcot-Marie-Tooth disease (CMT) is the most common peripheral neuromuscular disorder worldwide. The axonal degeneration in CMT causes distal muscle weakness and atrophy, resulting in gait problems and difficulties with basic motor coordination skills. A mutation in the cytoplasmic dynein heavy chain (DHC) gene was discovered to cause an autosomal dominant form of the disease designated Charcot-Marie-Tooth type 2O disease (CMT2O) in 2011. The mutation is a single amino acid change of histidine into arginine at amino acid 306 (H306R) in DHC. We previously generated a knock-in mouse carrying the corresponding CMT2O mutation (H304R) and examined the heterozygous H304R/+offspring in a variety of motor skills and histological assays. Here we report the initial characterization of the homozygous H304R/R mouse, which is the first homozygous mutant DHC mouse to survive past the neonatal stage. We show that H304R/R mice have significantly more severe disease symptoms than the heterozygous H304R/+mice. The H304R/R mice have significant defects in motor skills, including grip strength, motor coordination, and gait and also related defects in neuromuscular junction architecture. Furthermore, the mice have defects in sensation, another aspect of CMT disease. Our results show that the H304R/+ and H304R/R mice will be important models for studying the onset and progression of both heterozygous and homozygous CMT disease alleles.
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Ma K, Huang Z, Ma J, Shao L, Wang H, Wang Y. Perlecan and synaptophysin changes in denervated skeletal muscle. Neural Regen Res 2012; 7:1293-8. [PMID: 25657658 PMCID: PMC4308798 DOI: 10.3969/j.issn.1673-5374.2012.17.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2012] [Accepted: 04/23/2012] [Indexed: 11/18/2022] Open
Abstract
The present study observed sciatic nerve and gastrocnemius muscle changes in denervated rats using morphology methods, and assessed expression of perlecan, an extracellular matrix component, which is located at the skeletal muscle cell surface as acetylcholine esterase, as well as synaptophysin, a synaptic marker. Results showed degeneration and inflammation following transection of the sciatic nerve. In addition, the sciatic nerve-dominated skeletal muscle degenerated with mild inflammation, indicating that skeletal muscle atrophy primarily contributed to denervation-induced nutritional disturbances. With prolonged injury time (1-4 weeks post-injury), perlecan expression gradually decreased and reached the lowest level at 4 weeks, but synaptophysin expression remained unchanged after denervation. Results suggested that perlecan expression was more sensitive to denervation and reflected regional extracellular matrix changes following denervation.
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Affiliation(s)
- Kai Ma
- Department of Oral and Maxillofacial Surgery, Affiliated Hospital of Stomatology, Medical College of Zhejiang University, Hangzhou 310006, Zhejiang Province, China ; Department of Oral and Maxillofacial Surgery, Affiliated Hospital of Stomatology, Wenzhou Medical College, Wenzhou 325027, Zhejiang Province, China
| | - Zhifeng Huang
- School of Pharmacy, Wenzhou Medical College, Wenzhou 325000, Zhejiang Province, China
| | - Jianfeng Ma
- Department of Oral and Maxillofacial Surgery, Affiliated Hospital of Stomatology, Wenzhou Medical College, Wenzhou 325027, Zhejiang Province, China
| | - Longquan Shao
- Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, Guangdong Province, China
| | - Huiming Wang
- Department of Oral and Maxillofacial Surgery, Affiliated Hospital of Stomatology, Medical College of Zhejiang University, Hangzhou 310006, Zhejiang Province, China
| | - Yanliang Wang
- Department of Oral and Maxillofacial Surgery, Affiliated Hospital of Stomatology, Wenzhou Medical College, Wenzhou 325027, Zhejiang Province, China
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Blumer R, Konakci KZ, Brugger PC, Blumer MJF, Moser D, Schoefer C, Lukas JR, Streicher J. Muscle spindles and Golgi tendon organs in bovine calf extraocular muscle studied by means of double-fluorescent labeling, electron microscopy, and three-dimensional reconstruction. Exp Eye Res 2003; 77:447-62. [PMID: 12957144 DOI: 10.1016/s0014-4835(03)00157-x] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
In the present study muscle spindles (MSps) and Golgi tendon organs (GTOs) in bovine extraocular muscles (EOMs) were analyzed in detail. The innervation pattern of these proprioceptors was investigated with transmission electron microscope and confocal laser scanning microscope after double-fluorescent labeling. Three-dimensional (3D) reconstructions were performed of GTOs. Muscle spindles. MSps are numerous, each containing two nuclear bag fibers and up to eight nuclear chain fibers. In the equatorial region and paraequatorial region thin axons enwrapping the intrafusal muscle fibers form numerous nerve contacts on the muscle fiber surface. Double staining of such nerve terminals with synaptophysin and alpha-bungarotoxin and their fine structural features confirm their sensory nature. In the encapsulated part of the polar region neuromuscular contacts have structural features of motor nerve terminals and stain positively with alpha-bungarotoxin. Golgi tendon organs. GTOs are numerous in bovine EOMs. Each GTO contains collagen bundles but frequently also intracapsular muscle fibers. Intracapsular muscle fibers either terminate inside the GTO in collagen bundles or pass through the proprioceptor. GTOs are richly supplied with sensory nerve terminals which intermingle with the collagen bundles. Nerve terminals on intracapsular muscle fibers exhibit fine structural characteristics of motor nerve terminals and are alpha-bungarotoxin positive. The 3D images of GTOs show the detailed spatial arrangement of the GTO tissue components. These new insights in the complex and specific morphology of MSps and GTOs in bovine EOMs indicate that we deal with highly developed proprioceptors. These are supposed to provide important information for EOM innervation.
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Affiliation(s)
- Roland Blumer
- Department of Anatomy, University of Vienna, Austria.
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Colasante C, Pécot-Dechavassine M. Ultrastructural distribution of synaptophysin and synaptic vesicle recycling at the frog neuromuscular junction. J Neurosci Res 1996; 44:272-82. [PMID: 8723766 DOI: 10.1002/(sici)1097-4547(19960501)44:3<272::aid-jnr8>3.0.co;2-d] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Synaptic vesicle recycling after intense acetylcholine (ACh) release was studied at the frog neuromuscular junction (NMJ) using the synaptic vesicle transmembrane protein synaptophysin as immunocytochemical marker of the synaptic vesicle membrane during the process of exo-endocytosis. ACh release in cutaneous pectoris nerve-muscle preparations was stimulated by three different means: K+, Cd2+ in Ca(2+)-free medium, and electrical stimulation in the presence of 4-aminopyridine (4-AP). Cd2+ stimulation produced synaptic vesicle depletion and nerve terminal swelling. Electrical stimulation in the presence of 4-AP produced a reduction in the number of synaptic vesicles, deep axolemmal infoldings, coated pits, and coated vesicles. K+ stimulation did not produce any observable ultrastructural changes. Synaptophysin was labeled using silver-intensified immunogold in dissociated muscle fibers. Unstimulated and K(+)-stimulated preparations showed synaptophysin immunolabeling associated only with synaptic vesicles. In contrast, in Cd(2+)-stimulated preparations, synaptophysin appeared along the axolemma, mainly at the active zones, and after electrical stimulation it appeared in both axolemmal infoldings and the remaining synaptic vesicles. The results show that when synaptic vesicle recycling is inhibited by Cd2+ in Ca(2+)-free medium, or when 4-AP is present during electrical stimulation, synaptic vesicle fusion is accompanied by translocation and incorporation of synaptic vesicle membrane proteins into the axolemma. However, during the latter condition, synaptic vesicles are recycled through coated vesicles arising from the axolemmal infoldings. Conversely, during physiological-like stimulation of ACh release by K+ the synaptic vesicles are rapidly recycled at the active zones, by a double and rapid process of exo-endocytosis, without collapse into the axolemma.
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Affiliation(s)
- C Colasante
- Département de Neurobiologie des Signaux Intercellulaires (URA CNRS 1488), Université Pierre et Marie Curie, Paris, France
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Colasante C, Pécot-Dechavassine M. Cd(2+)-and K(+)-evoked ACh release induce different synaptophysin and synaptobrevin immunolabelling at the frog neuromuscular junction. JOURNAL OF NEUROCYTOLOGY 1995; 24:547-58. [PMID: 7595664 DOI: 10.1007/bf01257371] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Synaptophysin and synaptobrevin, two integral proteins of synaptic vesicles, have been used as immunocytochemical markers of the synaptic vesicle membrane during Cd(2+)- or K(+)-induced ACH release at the frog neuromuscular junction. ACh release was stimulated in cutaneous pectoris nerve-muscle preparations by: (1) 1 mM Cd2+ in Ca(2+)-free medium for a period of 3 h, (2) 25 or 40 mM K+ in normal Ringer's solution. Synaptophysin and synaptobrevin were immunolabelled in single fibres teased from fixed muscles using rabbit antisera raised against synaptophysin and synaptobrevin revealed with fluorescein-conjugated IgG. The postsynaptic ACh receptors were simultaneously labelled with rhodaminated alpha-bungarotoxin. Unstimulated and K(+)-stimulated preparations showed synaptophysin and synaptobrevin immunolabelling only after membrane permeabilization with 0.1% Triton X-100. In preparations stimulated with Cd2+ in Ca(2+)-free medium, the immunofluorescence was also observed in non Triton X-100 treated muscle fibres. Confocal laser scanning microscopy analysis revealed that in unstimulated and K(+)-stimulated preparations, synaptophysin and synaptobrevin immunofluorescence appears as bands regularly spaced along the permeabilized nerve terminals and that their distribution corresponds to clusters of synaptic vesicles. After Cd2+ stimulation in Ca(2+)-free medium, labelling for both proteins is irregularly distributed, being more intense at the lateral margins of swollen nerve terminals, suggesting a translocation of synaptic vesicle proteins to the axolemma. At the electron microscopic level, Cd2+ stimulation in Ca(2+)-free medium produces nerve terminal swelling and synaptic vesicle depletion. The results show that when ACh release is stimulated under an impairment of synaptic vesicle recycling, which leads to synaptic vesicle depletion, synaptophysin and synaptobrevin translocation occurs. These findings are in favour of a permanent incorporation of synaptic vesicle membrane into the axolemma. In contrast, after K+ stimulation, the immunofluorescence and the normal synaptic vesicle population observed, suggest that a double process of synaptic vesicle exo-endocytosis rapidly occurs, without incorporation of synaptic vesicle components into the axolemma.
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Affiliation(s)
- C Colasante
- Département de Neurobiologie des Signaux Intercellulaires (URA CNRS 1488), Université Pierre et Marie Curie, Paris, France
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Angaut-Petit D, Juzans P, Molgó J, Faille L, Seagar MJ, Takahashi M, Shoji-Kasai Y. Mouse motor nerve terminal immunoreactivity to synaptotagmin II during sustained quantal transmitter release. Brain Res 1995; 681:213-7. [PMID: 7552284 DOI: 10.1016/0006-8993(95)00294-z] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
An antibody directed against the lumenal NH2-terminus of synaptotagmin II was used to examine the distribution of this vesicular protein either after spontaneous acetylcholine release or after sustained release induced by La3+ or alpha-latrotoxin, in conditions that prevent endocytosis. The detection of the epitope was examined in the presence or absence of Triton X-100. We show that, in resting conditions of transmitter release, permeabilization of nerve terminal membranes is required for obvious detection of synaptotagmin Ii immunoreactivity whereas during sustained rates of quantal release, permeabilization is not necessary. These data indicate that, in the latter conditions, synaptotagmin II is incorporated into the terminal axolemma and its intravesicular domain exposed at the extracellular nerve terminal surface.
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Affiliation(s)
- D Angaut-Petit
- Laboratoire de Neurobiologie Cellulaire et Moléculaire, CNRS, Gif-sur-Yvette, France
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