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Ertlen C, Seblani M, Bonnet M, Brezun JM, Coyle T, Sabatier F, Fuentes S, Decherchi P, Serratrice N, Marqueste T. Efficacy of the immediate adipose-derived stromal vascular fraction autograft on functional sensorimotor recovery after spinal cord contusion in rats. Stem Cell Res Ther 2024; 15:29. [PMID: 38303017 PMCID: PMC10835949 DOI: 10.1186/s13287-024-03645-z] [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: 09/13/2023] [Accepted: 01/23/2024] [Indexed: 02/03/2024] Open
Abstract
BACKGROUND Spinal cord injuries (SCI) lead to functional alteration with important consequences such as motor and sensory disorders. The repair strategies developed to date remain ineffective. The adipose tissue-derived stromal vascular fraction (SVF) is composed of a cocktail of cells with trophic, pro-angiogenic and immunomodulatory effects. Numerous therapeutic benefits were shown for tissue reconstitution, peripheral neuropathy and for the improvement of neurodegenerative diseases. Here, the therapeutic efficacy of SVF on sensorimotor recovery after an acute thoracic spinal cord contusion in adult rats was determined. METHOD Male Sprague Dawley rats (n = 45) were divided into 3 groups: SHAM (without SCI and treatment), NaCl (animals with a spinal lesion and receiving a saline injection through the dura mater) and SVF (animals with a spinal lesion and receiving a fraction of fat removed from adipocytes through the dura mater). Some animals were sacrificed 14 days after the start of the experiment to determine the inflammatory reaction by measuring the interleukin-1β, interleukin-6 and Tumor Necrosis Factor-α in the lesion area. Other animals were followed once a week for 12 weeks to assess functional recovery (postural and locomotor activities, sensorimotor coordination). At the end of this period, spinal reflexivity (rate-dependent depression of the H-reflex) and physiological adjustments (ventilatory response to metabosensitive muscle activation following muscle fatigue) were measured with electrophysiological tools. RESULTS Compared to non-treated animals, results indicated that the SVF reduced the endogenous inflammation and increased the behavioral recovery in treated animals. Moreover, H-reflex depression and ventilatory adjustments to muscle fatigue were found to be comparable between SHAM and SVF groups. CONCLUSION Our results highlight the effectiveness of SVF and its high therapeutic potential to improve sensorimotor functions and to restore the segmental sensorimotor loop and the communication between supra- and sub-lesional spinal cord regions after traumatic contusion.
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Affiliation(s)
- Céline Ertlen
- Aix-Marseille Univ, CNRS, ISM UMR 7287, Institut des Sciences du Mouvement: Etienne-Jules MAREY, Equipe Plasticité Des Systèmes Nerveux Et Musculaire (PSNM), Parc Scientifique Et Technologique de Luminy, Aix Marseille Univ, CC910 - 163, Avenue de Luminy, 13288, Marseille Cedex 09, France
| | - Mostafa Seblani
- Aix-Marseille Univ, CNRS, ISM UMR 7287, Institut des Sciences du Mouvement: Etienne-Jules MAREY, Equipe Plasticité Des Systèmes Nerveux Et Musculaire (PSNM), Parc Scientifique Et Technologique de Luminy, Aix Marseille Univ, CC910 - 163, Avenue de Luminy, 13288, Marseille Cedex 09, France
| | - Maxime Bonnet
- Aix-Marseille Univ, CNRS, ISM UMR 7287, Institut des Sciences du Mouvement: Etienne-Jules MAREY, Equipe Plasticité Des Systèmes Nerveux Et Musculaire (PSNM), Parc Scientifique Et Technologique de Luminy, Aix Marseille Univ, CC910 - 163, Avenue de Luminy, 13288, Marseille Cedex 09, France
| | - Jean-Michel Brezun
- Aix-Marseille Univ, CNRS, ISM UMR 7287, Institut des Sciences du Mouvement: Etienne-Jules MAREY, Equipe Plasticité Des Systèmes Nerveux Et Musculaire (PSNM), Parc Scientifique Et Technologique de Luminy, Aix Marseille Univ, CC910 - 163, Avenue de Luminy, 13288, Marseille Cedex 09, France
| | - Thelma Coyle
- Aix-Marseille Univ, CNRS, ISM UMR 7287, Institut des Sciences du Mouvement: Etienne-Jules MAREY, Equipe Plasticité Des Systèmes Nerveux Et Musculaire (PSNM), Parc Scientifique Et Technologique de Luminy, Aix Marseille Univ, CC910 - 163, Avenue de Luminy, 13288, Marseille Cedex 09, France
| | - Florence Sabatier
- Assistance Publique - Hôpitaux de Marseille (AP-HM), INSERM 1409 Centre d'Investigation Clinique en Biothérapies, Unité de Culture Et Thérapie Cellulaire, Hôpital de La Conception, 147, Boulevard Baille, 13385, Marseille Cedex 05, France
| | - Stéphane Fuentes
- Assistance Publique - Hôpitaux de Marseille (AP-HM), Service de Neurochirurgie, Hôpital de La Timone, 264, Rue Saint-Pierre, 13005, Marseille, France
| | - Patrick Decherchi
- Aix-Marseille Univ, CNRS, ISM UMR 7287, Institut des Sciences du Mouvement: Etienne-Jules MAREY, Equipe Plasticité Des Systèmes Nerveux Et Musculaire (PSNM), Parc Scientifique Et Technologique de Luminy, Aix Marseille Univ, CC910 - 163, Avenue de Luminy, 13288, Marseille Cedex 09, France.
| | - Nicolas Serratrice
- Aix-Marseille Univ, CNRS, ISM UMR 7287, Institut des Sciences du Mouvement: Etienne-Jules MAREY, Equipe Plasticité Des Systèmes Nerveux Et Musculaire (PSNM), Parc Scientifique Et Technologique de Luminy, Aix Marseille Univ, CC910 - 163, Avenue de Luminy, 13288, Marseille Cedex 09, France
- Assistance Publique - Hôpitaux de Marseille (AP-HM), Service de Neurochirurgie, Hôpital de La Timone, 264, Rue Saint-Pierre, 13005, Marseille, France
| | - Tanguy Marqueste
- Aix-Marseille Univ, CNRS, ISM UMR 7287, Institut des Sciences du Mouvement: Etienne-Jules MAREY, Equipe Plasticité Des Systèmes Nerveux Et Musculaire (PSNM), Parc Scientifique Et Technologique de Luminy, Aix Marseille Univ, CC910 - 163, Avenue de Luminy, 13288, Marseille Cedex 09, France.
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Bonnet M, Ertlen C, Seblani M, Brezun JM, Coyle T, Cereda C, Zuccotti G, Colli M, Desouches C, Decherchi P, Carelli S, Marqueste T. Activated Human Adipose Tissue Transplantation Promotes Sensorimotor Recovery after Acute Spinal Cord Contusion in Rats. Cells 2024; 13:182. [PMID: 38247873 PMCID: PMC10814727 DOI: 10.3390/cells13020182] [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: 11/23/2023] [Revised: 01/09/2024] [Accepted: 01/15/2024] [Indexed: 01/23/2024] Open
Abstract
Traumatic spinal cord injuries (SCIs) often result in sensory, motor, and vegetative function loss below the injury site. Although preclinical results have been promising, significant solutions for SCI patients have not been achieved through translating repair strategies to clinical trials. In this study, we investigated the effective potential of mechanically activated lipoaspirated adipose tissue when transplanted into the epicenter of a thoracic spinal contusion. Male Sprague Dawley rats were divided into three experimental groups: SHAM (uninjured and untreated), NaCl (spinal cord contusion with NaCl application), and AF (spinal cord contusion with transplanted activated human fat). Pro-inflammatory cytokines (IL-1β, IL-6, TNF-α) were measured to assess endogenous inflammation levels 14 days after injury. Sensorimotor recovery was monitored weekly for 12 weeks, and gait and electrophysiological analyses were performed at the end of this observational period. The results indicated that AF reduced endogenous inflammation post-SCI and there was a significant improvement in sensorimotor recovery. Moreover, activated adipose tissue also reinstated the segmental sensorimotor loop and the communication between supra- and sub-lesional spinal cord regions. This investigation highlights the efficacy of activated adipose tissue grafting in acute SCI, suggesting it is a promising therapeutic approach for spinal cord repair after traumatic contusion in humans.
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Affiliation(s)
- Maxime Bonnet
- Aix Marseille Univ, CNRS, ISM, UMR 7287, Institut des Sciences du Mouvement: Etienne-Jules MAREY, Equipe «Plasticité des Systèmes Nerveux et Musculaire» (PSNM), Parc Scientifique et Technologique de Luminy, CC910-163, Avenue de Luminy, CEDEX 09, F-13288 Marseille, France (J.-M.B.); (P.D.)
| | - Céline Ertlen
- Aix Marseille Univ, CNRS, ISM, UMR 7287, Institut des Sciences du Mouvement: Etienne-Jules MAREY, Equipe «Plasticité des Systèmes Nerveux et Musculaire» (PSNM), Parc Scientifique et Technologique de Luminy, CC910-163, Avenue de Luminy, CEDEX 09, F-13288 Marseille, France (J.-M.B.); (P.D.)
| | - Mostafa Seblani
- Aix Marseille Univ, CNRS, ISM, UMR 7287, Institut des Sciences du Mouvement: Etienne-Jules MAREY, Equipe «Plasticité des Systèmes Nerveux et Musculaire» (PSNM), Parc Scientifique et Technologique de Luminy, CC910-163, Avenue de Luminy, CEDEX 09, F-13288 Marseille, France (J.-M.B.); (P.D.)
| | - Jean-Michel Brezun
- Aix Marseille Univ, CNRS, ISM, UMR 7287, Institut des Sciences du Mouvement: Etienne-Jules MAREY, Equipe «Plasticité des Systèmes Nerveux et Musculaire» (PSNM), Parc Scientifique et Technologique de Luminy, CC910-163, Avenue de Luminy, CEDEX 09, F-13288 Marseille, France (J.-M.B.); (P.D.)
| | - Thelma Coyle
- Aix Marseille Univ, CNRS, ISM, UMR 7287, Institut des Sciences du Mouvement: Etienne-Jules MAREY, Equipe «Plasticité des Systèmes Nerveux et Musculaire» (PSNM), Parc Scientifique et Technologique de Luminy, CC910-163, Avenue de Luminy, CEDEX 09, F-13288 Marseille, France (J.-M.B.); (P.D.)
| | - Cristina Cereda
- Center of Functional Genomics and Rare Diseases, Department of Paediatrics, Buzzi Children’s Hospital, Via Ludovico Castelvetro 32, 20154 Milano, Italy
| | - Gianvincenzo Zuccotti
- Pediatric Clinical Research Center «Romeo ed Enrica Invernizzi», Department of Biomedical and Clinical Sciences, University of Milano (UNIMI), Via G.B. Grassi 74, 20157 Milan, Italy;
- Department of Paediatrics, Buzzi Children’s Hospital, Via Ludovico Castelvetro 32, 20154 Milano, Italy
| | - Mattia Colli
- Podgora7 Clinic, Via Podgora 7, 20122 Milano, Italy
| | - Christophe Desouches
- Clinique Phénicia—CD Esthétique, 5 Boulevard Notre Dame, F-13006 Marseille, France
| | - Patrick Decherchi
- Aix Marseille Univ, CNRS, ISM, UMR 7287, Institut des Sciences du Mouvement: Etienne-Jules MAREY, Equipe «Plasticité des Systèmes Nerveux et Musculaire» (PSNM), Parc Scientifique et Technologique de Luminy, CC910-163, Avenue de Luminy, CEDEX 09, F-13288 Marseille, France (J.-M.B.); (P.D.)
| | - Stephana Carelli
- Center of Functional Genomics and Rare Diseases, Department of Paediatrics, Buzzi Children’s Hospital, Via Ludovico Castelvetro 32, 20154 Milano, Italy
- Pediatric Clinical Research Center «Romeo ed Enrica Invernizzi», Department of Biomedical and Clinical Sciences, University of Milano (UNIMI), Via G.B. Grassi 74, 20157 Milan, Italy;
| | - Tanguy Marqueste
- Aix Marseille Univ, CNRS, ISM, UMR 7287, Institut des Sciences du Mouvement: Etienne-Jules MAREY, Equipe «Plasticité des Systèmes Nerveux et Musculaire» (PSNM), Parc Scientifique et Technologique de Luminy, CC910-163, Avenue de Luminy, CEDEX 09, F-13288 Marseille, France (J.-M.B.); (P.D.)
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Pranty AI, Wruck W, Adjaye J. Free Bilirubin Induces Neuro-Inflammation in an Induced Pluripotent Stem Cell-Derived Cortical Organoid Model of Crigler-Najjar Syndrome. Cells 2023; 12:2277. [PMID: 37759499 PMCID: PMC10527749 DOI: 10.3390/cells12182277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 08/30/2023] [Accepted: 09/12/2023] [Indexed: 09/29/2023] Open
Abstract
Bilirubin-induced neurological damage (BIND), which might progress to kernicterus, occurs as a consequence of defects in the bilirubin conjugation machinery, thus enabling albumin-unbound free bilirubin (BF) to cross the blood-brain barrier and accumulate within. A defect in the UGT1A1 enzyme-encoding gene, which is directly responsible for bilirubin conjugation, can cause Crigler-Najjar syndrome (CNS) and Gilbert's syndrome. We used human-induced pluripotent stem cell (hiPSC)-derived 3D brain organoids to model BIND in vitro and unveil the molecular basis of the detrimental effects of BF in the developing human brain. Healthy and patient-derived iPSCs were differentiated into day-20 brain organoids, and then stimulated with 200 nM BF. Analyses at 24 and 72 h post-treatment point to BF-induced neuro-inflammation in both cell lines. Transcriptome, associated KEGG, and Gene Ontology analyses unveiled the activation of distinct inflammatory pathways, such as cytokine-cytokine receptor interaction, MAPK signaling, and NFκB activation. Furthermore, the mRNA expression and secretome analysis confirmed an upregulation of pro-inflammatory cytokines such as IL-6 and IL-8 upon BF stimulation. This novel study has provided insights into how a human iPSC-derived 3D brain organoid model can serve as a prospective platform for studying the etiology of BIND kernicterus.
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Affiliation(s)
- Abida Islam Pranty
- Institute for Stem Cell Research and Regenerative Medicine, Medical Faculty, Heinrich-Heine University Düsseldorf, 40225 Düsseldorf, Germany; (A.I.P.); (W.W.)
| | - Wasco Wruck
- Institute for Stem Cell Research and Regenerative Medicine, Medical Faculty, Heinrich-Heine University Düsseldorf, 40225 Düsseldorf, Germany; (A.I.P.); (W.W.)
| | - James Adjaye
- Institute for Stem Cell Research and Regenerative Medicine, Medical Faculty, Heinrich-Heine University Düsseldorf, 40225 Düsseldorf, Germany; (A.I.P.); (W.W.)
- Zayed Centre for Research into Rare Diseases in Children (ZCR), University College London (UCL)—EGA Institute for Women’s Health, 20 Guilford Street, London WC1N 1DZ, UK
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Salafutdinov II, Gatina DZ, Markelova MI, Garanina EE, Malanin SY, Gazizov IM, Izmailov AA, Rizvanov AA, Islamov RR, Palotás A, Safiullov ZZ. A Biosafety Study of Human Umbilical Cord Blood Mononuclear Cells Transduced with Adenoviral Vector Carrying Human Vascular Endothelial Growth Factor cDNA In Vitro. Biomedicines 2023; 11:2020. [PMID: 37509661 PMCID: PMC10377014 DOI: 10.3390/biomedicines11072020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 07/11/2023] [Accepted: 07/14/2023] [Indexed: 07/30/2023] Open
Abstract
The biosafety of gene therapy remains a crucial issue for both the direct and cell-mediated delivery of recombinant cDNA encoding biologically active molecules for the pathogenetic correction of congenital or acquired disorders. The diversity of vector systems and cell carriers for the delivery of therapeutic genes revealed the difficulty of developing and implementing a safe and effective drug containing artificial genetic material for the treatment of human diseases in practical medicine. Therefore, in this study we assessed changes in the transcriptome and secretome of umbilical cord blood mononuclear cells (UCB-MCs) genetically modified using adenoviral vector (Ad5) carrying cDNA encoding human vascular endothelial growth factor (VEGF165) or reporter green fluorescent protein (GFP). A preliminary analysis of UCB-MCs transduced with Ad5-VEGF165 and Ad5-GFP with MOI of 10 showed efficient transgene expression in gene-modified UCB-MCs at mRNA and protein levels. The whole transcriptome sequencing of native UCB-MCs, UCB-MC+Ad5-VEGF165, and UCB-MC+Ad5-GFP demonstrated individual sample variability rather than the effect of Ad5 or the expression of recombinant vegf165 on UCB-MC transcriptomes. A multiplex secretome analysis indicated that neither the transduction of UCB-MCs with Ad5-GFP nor with Ad5-VEGF165 affects the secretion of the studied cytokines, chemokines, and growth factors by gene-modified cells. Here, we show that UCB-MCs transduced with Ad5 carrying cDNA encoding human VEGF165 efficiently express transgenes and preserve transcriptome and secretome patterns. This data demonstrates the biosafety of using UCB-MCs as cell carriers of therapeutic genes.
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Affiliation(s)
- Ilnur I Salafutdinov
- Department of Histology, Cytology and Embryology, Kazan State Medical University, Kazan 420012, Russia
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan 420008, Russia
| | - Dilara Z Gatina
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan 420008, Russia
| | - Maria I Markelova
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan 420008, Russia
| | - Ekaterina E Garanina
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan 420008, Russia
| | - Sergey Yu Malanin
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan 420008, Russia
| | - Ilnaz M Gazizov
- Department of Histology, Cytology and Embryology, Kazan State Medical University, Kazan 420012, Russia
| | - Andrei A Izmailov
- Department of Histology, Cytology and Embryology, Kazan State Medical University, Kazan 420012, Russia
| | - Albert A Rizvanov
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan 420008, Russia
| | - Rustem R Islamov
- Department of Histology, Cytology and Embryology, Kazan State Medical University, Kazan 420012, Russia
| | - András Palotás
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan 420008, Russia
- Asklepios-Med (Private Medical Practice and Research Center), H-6722 Szeged, Hungary
- Tokaj-Hegyalja University, H-3910 Tokaj, Hungary
| | - Zufar Z Safiullov
- Department of Histology, Cytology and Embryology, Kazan State Medical University, Kazan 420012, Russia
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Goudreau AD, Tanara L, Tzaneva V, Adamo KB. Examining the Effects of Gestational Physical Activity and Hofbauer Cell Polarization on Angiogenic Factors. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:6298. [PMID: 37444145 PMCID: PMC10342061 DOI: 10.3390/ijerph20136298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 06/21/2023] [Accepted: 06/30/2023] [Indexed: 07/15/2023]
Abstract
While gestational physical activity (PA) has demonstrated health benefits for both birthing parent and fetus, the mechanisms still need to be fully understood. Placental macrophages, or Hofbauer cells (HBCs), comprise a heterogenous population containing inflammatory (CD206-) and anti-inflammatory (CD206+) phenotypes. Similar to other tissue-resident macrophages (TRMs), HBCs are potential mediators of angiogenesis due to their secretion of both pro- and anti-angiogenic factors, including FGF2, VEGF, and SPRY2. While PA is associated with an increase in the proportion of VEGF- and FGF2-producing CD206+ macrophages in other tissues, the phenotypes producing FGF2, VEGF, and SPRY2 in the placenta and the associated relationships with gestational PA have not been studied. Using accelerometry, pregnant participants were classified as physically active or inactive in mid- and late-gestation. Term placenta tissue was collected at delivery and used for Western blotting and immunofluorescence to examine the protein expression of FGF2 and SPRY2, and to localize FGF2 in histological samples, respectively. Primary cultures of HBCs were used to examine the phenotypic differences in FGF2, SPRY2, and VEGF production. While no differences in the placental expression of SPRY2, total FGF2, or high-molecular-weight FGF2 were observed based on PA status, active individuals had significantly reduced levels of low-molecular-weight FGF2. Additionally, HBCs of all polarizations produce VEGF, FGF2, and SPRY2, and can form intercellular junctions and multinucleated giant cells. These findings suggest a possible relationship between PA and HBC-driven angiogenesis, providing an avenue for future exploration.
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Affiliation(s)
| | - Layli Tanara
- Faculty of Sciences, University of Ottawa, Ottawa, ON K1S 5L5, Canada
| | - Velislava Tzaneva
- Faculty of Health Sciences, University of Ottawa, Ottawa, ON K1S 5L5, Canada
| | - Kristi B. Adamo
- Faculty of Health Sciences, University of Ottawa, Ottawa, ON K1S 5L5, Canada
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Kalashnikova I, Cambell H, Kolpek D, Park J. Optimization and characterization of miRNA-129-5p-encapsulated poly (lactic- co-glycolic acid) nanoparticles to reprogram activated microglia. NANOSCALE ADVANCES 2023; 5:3439-3452. [PMID: 37383067 PMCID: PMC10295030 DOI: 10.1039/d3na00149k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Accepted: 05/05/2023] [Indexed: 06/30/2023]
Abstract
Microglia have become a therapeutic target of many inflammation-mediated diseases in the central nervous system (CNS). Recently, microRNA (miRNA) has been proposed as an important regulator of immune responses. Specifically, miRNA-129-5p has been shown to play critical roles in the regulation of microglia activation. We have demonstrated that biodegradable poly (lactic-co-glycolic acid) (PLGA)-based nanoparticles (NPs) modulated innate immune cells and limited neuroinflammation after injury to the CNS. In this study, we optimized and characterized PLGA-based NPs for miRNA-129-5p delivery to utilize their synergistic immunomodulatory features for activated microglia modulation. A series of nanoformulations employing multiple excipients including epigallocatechin gallate (EGCG), spermidine (Sp), or polyethyleneimine (PEI) for miRNA-129-5p complexation and miRNA-129-5p conjugation to PLGA (PLGA-miR) were utilized. We characterized a total of six nanoformulations through physicochemical, biochemical, and molecular biological methods. In addition, we investigated the immunomodulatory effects of multiple nanoformulations. The data indicated that the immunomodulatory effects of nanoformulation, PLGA-miR with the excipient Sp (PLGA-miR+Sp) and PEI (PLGA-miR+PEI) were significant compared to other nanoformulations including naked PLGA-based NP. These nanoformulations promoted a sustained release of miRNA-129-5p and polarization of activated microglia into a more pro-regenerative phenotype. Moreover, they enhanced the expression of multiple regeneration-associated factors, while alleviating the expression of pro-inflammatory factors. Collectively, the proposed nanoformulations in this study highlight the promising therapeutic tools for synergistic immunomodulatory effects between PLGA-based NPs and miRNA-129-5p to modulate activated microglia which will have numerous applications for inflammation-derived diseases.
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Affiliation(s)
- Irina Kalashnikova
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky 789 S. Limestone Lexington KY 40506 USA +1-859-257-1850
| | - Heather Cambell
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky 789 S. Limestone Lexington KY 40506 USA +1-859-257-1850
| | - Daniel Kolpek
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky 789 S. Limestone Lexington KY 40506 USA +1-859-257-1850
| | - Jonghyuck Park
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky 789 S. Limestone Lexington KY 40506 USA +1-859-257-1850
- Spinal Cord and Brain Injury Research Center, College of Medicine, University of Kentucky Lexington KY USA
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Slovinska L, Harvanova D. The Role of Mesenchymal Stromal Cells and Their Products in the Treatment of Injured Spinal Cords. Curr Issues Mol Biol 2023; 45:5180-5197. [PMID: 37367078 DOI: 10.3390/cimb45060329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 06/09/2023] [Accepted: 06/14/2023] [Indexed: 06/28/2023] Open
Abstract
Spinal cord injury (SCI) is a destructive condition that results in lasting neurological damage resulting in disruption of the connection between the central nervous system and the rest of the body. Currently, there are several approaches in the treatment of a damaged spinal cord; however, none of the methods allow the patient to return to the original full-featured state of life before the injury. Cell transplantation therapies show great potential in the treatment of damaged spinal cords. The most examined type of cells used in SCI research are mesenchymal stromal cells (MSCs). These cells are at the center of interest of scientists because of their unique properties. MSCs regenerate the injured tissue in two ways: (i) they are able to differentiate into some types of cells and so can replace the cells of injured tissue and (ii) they regenerate tissue through their powerful known paracrine effect. This review presents information about SCI and the treatments usually used, aiming at cell therapy using MSCs and their products, among which active biomolecules and extracellular vesicles predominate.
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Affiliation(s)
- Lucia Slovinska
- Associated Tissue Bank, P.J. Šafárik University and L. Pasteur University Hospital, 040 01 Košice, Slovakia
- Department of Regenerative Medicine and Cell Therapy, Institute of Neurobiology Biomedical Research Center, Slovak Academy of Sciences, 040 01 Košice, Slovakia
| | - Denisa Harvanova
- Associated Tissue Bank, P.J. Šafárik University and L. Pasteur University Hospital, 040 01 Košice, Slovakia
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Advanced molecular therapies for neurological diseases: focus on stroke, alzheimer's disease, and parkinson's disease. Neurol Sci 2023; 44:19-36. [PMID: 36066674 DOI: 10.1007/s10072-022-06356-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Accepted: 08/16/2022] [Indexed: 01/10/2023]
Abstract
Neurological diseases (NDs) are one of the leading causes of disability and the second leading cause of death globally. Among these stroke, Alzheimer's disease (AD), and Parkinson's disease (PD) are the most common NDs. A rise in the absolute number of individuals affected with these diseases indicates that the current treatment strategies in management and prevention of these debilitating diseases are not effective sufficiently. Therefore, novel treatment strategies are being explored to cure these diseases by addressing the causative mechanisms at the molecular level. Advanced therapies like gene therapy (gene editing and gene silencing) and stem cell therapies aim to cure diseases by gene editing, gene silencing and tissue regeneration, respectively. Gene editing results in the deletion of the aberrant gene or insertion of the corrected gene which can be executed using the CRISPR/Cas gene editing tool a promising treatment strategy being explored for many other prevalent diseases. Gene silencing using siRNA silences the gene by inhibiting protein translation, thereby silencing its expression. Stem cell therapy aims to regenerate damaged cells or tissues because of their ability to divide into any type of cell in the human body. Among these approaches, gene editing and gene silencing have currently been applied in vitro and to animal models, while stem cell therapy has reached the clinical trial stage for the treatment of NDs. The current status of these strategies suggests a promising outcome in their clinical translation.
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Bar JK, Lis-Nawara A, Grelewski PG. Dental Pulp Stem Cell-Derived Secretome and Its Regenerative Potential. Int J Mol Sci 2021; 22:ijms222112018. [PMID: 34769446 PMCID: PMC8584775 DOI: 10.3390/ijms222112018] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 11/02/2021] [Accepted: 11/04/2021] [Indexed: 12/11/2022] Open
Abstract
The therapeutic potential of the dental pulp stem (DSC) cell-derived secretome, consisting of various biomolecules, is undergoing intense research. Despite promising in vitro and in vivo studies, most DSC secretome-based therapies have not been implemented in human medicine because the paracrine effect of the bioactive factors secreted by human dental pulp stem cells (hDPSCs) and human exfoliated deciduous teeth (SHEDs) is not completely understood. In this review, we outline the current data on the hDPSC- and SHED-derived secretome as a potential candidate in the regeneration of bone, cartilage, and nerve tissue. Published reports demonstrate that the dental MSC-derived secretome/conditional medium may be effective in treating neurodegenerative diseases, neural injuries, cartilage defects, and repairing bone by regulating neuroprotective, anti-inflammatory, antiapoptotic, and angiogenic processes through secretome paracrine mechanisms. Dental MSC-secretomes, similarly to the bone marrow MSC-secretome activate molecular and cellular mechanisms, which determine the effectiveness of cell-free therapy. Many reports emphasize that dental MSC-derived secretomes have potential application in tissue-regenerating therapy due to their multidirectional paracrine effect observed in the therapy of many different injured tissues.
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Hassani Moghaddam M, Eskandarian Boroujeni M, Vakili K, Fathi M, Abdollahifar MA, Eskandari N, Esmaeilpour T, Aliaghaei A. Functional and structural alternations in the choroid plexus upon methamphetamine exposure. Neurosci Lett 2021; 764:136246. [PMID: 34530114 DOI: 10.1016/j.neulet.2021.136246] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2021] [Revised: 08/27/2021] [Accepted: 09/09/2021] [Indexed: 12/13/2022]
Abstract
Choroid plexus (CP) is the principal source of cerebrospinal fluid. CP can produce and release a wide range of materials including growth factors, neurotrophic factors, etc. all of which play an important role in the maintenance and proper functioning of the brain. Methamphetamine (METH) is a CNS neurostimulant that causes brain dysfunction. Herein, we investigated the potential effects of METH exposure on CP structure and function. Stereological analysis revealed a significant alteration in CP volume, epithelial cells and capillary number upon METH treatment. Electron microscopy exhibited changes in ultrastructure. Moreover, the upregulation of neurotrophic factors such as BDNF and VEGF as well as autophagy and apoptosis gene following METH administration were observed. We also identified several signaling cascades related to autophagy. In conclusion, gene expression changes coupled with structural alterations of the CP in response to METH suggested METH-induced autophagy in CP.
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Affiliation(s)
- Meysam Hassani Moghaddam
- Department of Anatomical Sciences, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mahdi Eskandarian Boroujeni
- Department of Human Molecular Genetics, Institute of Molecular Biology and Biotechnology, Faculty of Biology, Adam Mickiewicz University, Poznan, Poland
| | - Kimia Vakili
- Student Research Committee, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mobina Fathi
- Student Research Committee, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad-Amin Abdollahifar
- Department of Cell Biology and Anatomical Sciences, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Neda Eskandari
- Department of Cell Biology and Anatomical Sciences, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Tahereh Esmaeilpour
- Department of Anatomical Sciences, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.
| | - Abbas Aliaghaei
- Department of Cell Biology and Anatomical Sciences, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Hearing Disorders Research Center, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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Chen S, Wu L, He B, Zhou G, Xu Y, Zhu G, Xie J, Chen S, Yao L, Huang J, Wu H, Xiao Z. Artemisinin Facilitates Motor Function Recovery by Enhancing Motoneuronal Survival and Axonal Remyelination in Rats Following Brachial Plexus Root Avulsion. ACS Chem Neurosci 2021; 12:3148-3156. [PMID: 34465091 DOI: 10.1021/acschemneuro.1c00120] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Artemisinin (ART), a well-known antimalarial medicine originally isolated from the plant Artemisia annua, exerts neuroprotective effects in the nervous system owing to an antioxidant effect. Here, we determined whether ART is capable of inhibiting the oxidative stress to enhance motoneuronal (MN) survival to promote motor function recovery of rats following brachial plexus root avulsion (BPRA) with reimplantation surgery. Rats following BPRA and reimplantation were subcutaneously injected with 500 μL of PBS or 16 mg/mL ART once daily for 7 days after surgery. Terzis grooming test (TGT), histochemical staining, real-time polymerase chain reaction, and Western blot were conducted to determine the recovery of motor function of the upper limb, the survival rate of MNs, the oxidative stress levels in the ventral horn of the spinal cord, the morphology of abnormal musculocutaneous nerve fibers, the remyelination of axons in musculocutaneous nerves, and the degree of bicep atrophy. ART significantly increased TGT score, improved the survival of MNs, inhibited the oxidative stress, ameliorated the abnormal morphology of fibers in the musculocutaneous nerve, promoted the remyelination of axons, and alleviated muscle atrophy. Take together, ART can improve the survival of MNs and axonal remyelination to promote the motor function recovery via inhibiting oxidative stress, suggesting that ART may represent a new approach to the therapy of spinal root avulsion.
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Affiliation(s)
- Shuangxi Chen
- Department of Neurology, The First Affiliated Hospital, University of South China, Hengyang, Hunan 421001, P.R. China
| | - Lin Wu
- Department of Neurology, The First Affiliated Hospital, University of South China, Hengyang, Hunan 421001, P.R. China
| | - Bing He
- Department of Neurology, The First Affiliated Hospital, University of South China, Hengyang, Hunan 421001, P.R. China
| | - Guijuan Zhou
- Department of Neurology, The First Affiliated Hospital, University of South China, Hengyang, Hunan 421001, P.R. China
| | - Yan Xu
- Department of Neurology, The First Affiliated Hospital, University of South China, Hengyang, Hunan 421001, P.R. China
| | - Guanghua Zhu
- Department of Neurology, The First Affiliated Hospital, University of South China, Hengyang, Hunan 421001, P.R. China
| | - Juan Xie
- Department of Neurology, The First Affiliated Hospital, University of South China, Hengyang, Hunan 421001, P.R. China
| | - Shuangqin Chen
- Department of Neurology, The First Affiliated Hospital, University of South China, Hengyang, Hunan 421001, P.R. China
| | - Lan Yao
- Department of Neurology, The First Affiliated Hospital, University of South China, Hengyang, Hunan 421001, P.R. China
| | - Jianghua Huang
- Department of Neurology, The First Affiliated Hospital, University of South China, Hengyang, Hunan 421001, P.R. China
| | - Heng Wu
- Department of Neurology, The First Affiliated Hospital, University of South China, Hengyang, Hunan 421001, P.R. China
| | - Zijian Xiao
- Department of Neurology, The First Affiliated Hospital, University of South China, Hengyang, Hunan 421001, P.R. China
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Cao H, Sethumadhavan K, Wu X, Zeng X. Cottonseed-derived gossypol and ethanol extracts differentially regulate cell viability and VEGF gene expression in mouse macrophages. Sci Rep 2021; 11:15700. [PMID: 34344975 PMCID: PMC8333419 DOI: 10.1038/s41598-021-95248-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Accepted: 07/22/2021] [Indexed: 11/22/2022] Open
Abstract
Vascular endothelial growth factor (VEGF) plays an important role in chronic inflammation associated with several diseases. Many plant extracts have nutritional and healthy benefits by down-regulating VEGF expression, but there was no report on VEGF regulation by cottonseed extracts in any biological system. The objective was to investigate cell viability and VEGF expression regulated by gossypol and ethanol extracts using lipopolysaccharides (LPS) as a control. MTT, qPCR and immunoblotting techniques were used to monitor cell viability, VEGF mRNA and protein levels in mouse RAW264.7 macrophages. Gossypol dramatically reduced macrophage viability but cottonseed extracts and LPS exhibited minor effect on cell viability. VEGFb mRNA levels were approximately 40 fold of VEGFa in the macrophages. Gossypol increased VEGFa and VEGFb mRNA levels up to 27 and 4 fold, respectively, and increased VEGF protein. LPS increased VEGFa mRNA by sixfold but decreased VEGFb mRNA. LPS increased VEGF protein in 2–4 h but decreased in 8–24 h. Glanded seed extracts showed some stimulating effects on VEGF mRNA levels. Glandless seed coat extract showed increased VEGFb mRNA levels but its kernel extract reduced VEGF mRNA levels. This study demonstrated that gossypol and ethanol extracts differentially regulated cell viability and VEGF expression in mouse macrophages.
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Affiliation(s)
- Heping Cao
- U.S. Department of Agriculture, Agricultural Research Service, Southern Regional Research Center, New Orleans, LA, 70124, USA.
| | - Kandan Sethumadhavan
- U.S. Department of Agriculture, Agricultural Research Service, Southern Regional Research Center, New Orleans, LA, 70124, USA
| | - Xiaoyu Wu
- U.S. Department of Agriculture, Agricultural Research Service, Southern Regional Research Center, New Orleans, LA, 70124, USA.,School of Bioscience and Bioengineering, Jiangxi Agricultural University, Nanchang, 330045, Jiangxi Province, China
| | - Xiaochun Zeng
- U.S. Department of Agriculture, Agricultural Research Service, Southern Regional Research Center, New Orleans, LA, 70124, USA.,Department of Life Science and Environmental Resources, Yichun University, Yichun, 336000, Jiangxi Province, China
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13
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Wang Y, Chen S, Tan J, Gao Y, Yan H, Liu Y, Yi S, Xiao Z, Wu H. Tryptophan in the diet ameliorates motor deficits in a rotenone-induced rat Parkinson's disease model via activating the aromatic hydrocarbon receptor pathway. Brain Behav 2021; 11:e2226. [PMID: 34105899 PMCID: PMC8413809 DOI: 10.1002/brb3.2226] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 04/12/2021] [Accepted: 05/19/2021] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND AND PURPOSE Parkinson's disease (PD), a common neurodegenerative disorder with motor and nonmotor symptoms, does not have effective treatments. Dietary tryptophan (Trp) supplementation has potential benefits for the treatment of multiple disorders. However, whether additional Trp in the diet could be beneficial for PD remains to beinvestigated. In the present study, the neuroprotective role of dietary Trp on a rotenone-induced rat model of PD was determined. METHODS The rotenone was injected to build the PD model, and then the rats were treated with Trp in the diet. And then, an open field test, western blot analysis, and enzyme linked immunosorbent assay (ELISA) were performed. RESULTS We observed that dietary Trp significantly ameliorated impaired motor function, upregulated tyrosine hydroxylase expression, inhibited the nuclear transport of Nuclear factor-kappa B (NF-κB) in substantia nigra (SN), and downregulated the protein levels of IL-1β, IL-6, and TNF-α in serum in rotenone-treated rats. However, these patterns were reversed in response to treatment with ampicillin, an agent that can clean intestinal Trp metabolism flora. Moreover, after using CH223191, an inhibitor of the aromatic hydrocarbon receptor (AhR) pathway, dietary Trp could not exert neuroprotective roles in the rotenone-induced rat model of PD. CONCLUSION These results suggest that Trp in the diet can protect against rotenone-induced neurotoxicity to ameliorate motor deficits, which may be mediated through activating AhR pathway.
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Affiliation(s)
- Yilin Wang
- Department of Neurology, The First Affiliated Hospital, University of South China, Hengyang, PR China.,Affiliated Nanhua Hospital, University of South China, Hengyang, PR China
| | - Shuangxi Chen
- Department of Neurology, The First Affiliated Hospital, University of South China, Hengyang, PR China
| | - Jian Tan
- Department of Neurology, The First Affiliated Hospital, University of South China, Hengyang, PR China
| | - Yijiang Gao
- Department of Neurology, The First Affiliated Hospital, University of South China, Hengyang, PR China
| | - Hongye Yan
- Department of Neurology, The First Affiliated Hospital, University of South China, Hengyang, PR China
| | - Yao Liu
- Department of Neurology, The First Affiliated Hospital, University of South China, Hengyang, PR China
| | - Shanqing Yi
- Department of Neurology, The First Affiliated Hospital, University of South China, Hengyang, PR China
| | - Zijian Xiao
- Department of Neurology, The First Affiliated Hospital, University of South China, Hengyang, PR China
| | - Heng Wu
- Department of Neurology, The First Affiliated Hospital, University of South China, Hengyang, PR China
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Tan J, Chen SX, Lei QY, Yi SQ, Wu N, Wang YL, Xiao ZJ, Wu H. Mitochonic acid 5 regulates mitofusin 2 to protect microglia. Neural Regen Res 2021; 16:1813-1820. [PMID: 33510088 PMCID: PMC8328753 DOI: 10.4103/1673-5374.306094] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Microglial apoptosis is associated with neuroinflammation and no effective strategies are currently available to protect microglia against inflammation-induced apoptosis. Mouse microglial BV-2 cells (5 × 106) were incubated with 10 μg/mL lipopolysaccharides for 12 hours to mimic an inflammatory environment. Then the cells were co-cultured with mitochonic acid 5 (MA-5) for another 12 hours. MA-5 improved the survival of lipopolysaccharide-exposed cells. MA-5 decreased the activity of caspase-3, which is associated with apoptosis. MA-5 reduced the number of terminal deoxynucleotidyl transferase-mediated dUTP-biotin nick end labeling-positive cells, and increased adenosine triphosphate levels in cells. MA-5 decreased the open state of the mitochondrial permeability transition pore and reduced calcium overload and diffusion of second mitochondria-derived activator of caspase (Smac). MA-5 decreased the expression of apoptosis-related proteins (mitochondrial Smac, cytoplasmic Smac, pro-caspase-3, cleaved-caspase-3, and caspase-9), and increased the levels of anti-apoptotic proteins (Bcl2 and X-linked inhibitor of apoptosis protein), mitochondria-related proteins (mitochondrial fusion protein 2, mitochondrial microtubule-associated proteins 1A/1B light chain 3B II), and autophagy-related proteins (Beclin1, p62 and autophagy related 5). However, MA-5 did not promote mitochondrial homeostasis or decrease microglial apoptosis when Mitofusin 2 expression was silenced. This shows that MA-5 increased Mitofusin 2-related mitophagy, reversed cellular energy production and maintained energy metabolism in BV-2 cells in response to lipopolysaccharide-induced inflammation. These findings indicate that MA-5 may promote the survival of microglial cells via Mitofusin 2-related mitophagy in response to lipopolysaccharide-induced inflammation.
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Affiliation(s)
- Jian Tan
- Department of Neurology, The First Affiliated Hospital of University of South China, Hengyang, Hunan Province, China
| | - Shuang-Xi Chen
- Department of Neurology, The First Affiliated Hospital of University of South China, Hengyang, Hunan Province, China
| | - Qing-Yun Lei
- Department of Neurology, The First Affiliated Hospital of University of South China, Hengyang, Hunan Province, China
| | - Shan-Qing Yi
- Department of Neurology, The First Affiliated Hospital of University of South China, Hengyang, Hunan Province, China
| | - Na Wu
- Department of Neurology, The First Affiliated Hospital of University of South China, Hengyang, Hunan Province, China
| | - Yi-Lin Wang
- Department of Neurology, The First Affiliated Hospital of University of South China, Hengyang, Hunan Province, China
| | - Zi-Jian Xiao
- Department of Neurology, The First Affiliated Hospital of University of South China, Hengyang, Hunan Province, China
| | - Heng Wu
- Department of Neurology, The First Affiliated Hospital of University of South China, Hengyang, Hunan Province, China
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15
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Li J, Huang L, Yu LT, Tao G, Wang ZY, Hao WZ, Huang JQ. Feruloylated Oligosaccharides Alleviate Central Nervous Inflammation in Mice Following Spinal Cord Contusion. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:15490-15500. [PMID: 33170671 DOI: 10.1021/acs.jafc.0c05553] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
As one of the empirical models of the chronic central inflammatory response, a spinal cord injury (SCI) deteriorates the neuronal survival and results in irreversible motor and sensory dysfunction below the injury area. Our previous studies have reported that maize bran feruloylated oligosaccharides (FOs) exert significant anti-inflammatory activities both in diabetes and colitis. However, no direct evidence of FOs alleviating central nervous inflammation was stated. This study aimed to investigate the therapeutic effect of FOs on SCI and its potential mechanism. Our results indicated that 4 weeks of FO administration effectively mitigated the inflammatory response via decreasing the number of microglia (labelled with Iba1), result in the expression of IL-1α, IL-2, IL-6, IL-18 and TNF-α downregulating, but the level of IL-10 and BDNF increases in the injured spinal cord. Moreover, FOs enhanced neuronal survival, ameliorated the scar cavities, and improved behaviors, including Basso mouse scale (BMS) scores and the gait of mice after SCI. Together, these results demonstrated that administration of FOs showed superior functional recovery effects in a SCI model. Also, FOs may modulate inflammatory activities by regulating the expression of proinflammatory factors, decreasing the production of inflammatory cells, and promoting functional recovery through the MAPK pathway following SCI.
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Affiliation(s)
- Jing Li
- Integrated Chinese and Western Medicine Postdoctoral research station, Jinan University, Guangzhou, Guangdong 510632, China
- Formula-pattern Research Center, School of Traditional Chinese Medicine, Jinan University, Guangzhou, Guangdong 510632, China
- Guangdong-Hongkong-Macau Institute of CNS Regeneration, Jinan University, Guangzhou, Guangdong 510632, China
| | - Lu Huang
- Guangdong-Hongkong-Macau Institute of CNS Regeneration, Jinan University, Guangzhou, Guangdong 510632, China
| | - Ling-Tai Yu
- Guangdong-Hongkong-Macau Institute of CNS Regeneration, Jinan University, Guangzhou, Guangdong 510632, China
| | - Gabriel Tao
- Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston 77204, United States
| | - Zi-Ying Wang
- Interdisciplinary Institute for Personalized Medicine in Brain Disorders, Jinan University, Guangzhou, Guangdong 510632, China
| | - Wen-Zhi Hao
- Formula-pattern Research Center, School of Traditional Chinese Medicine, Jinan University, Guangzhou, Guangdong 510632, China
| | - Jun-Qing Huang
- Formula-pattern Research Center, School of Traditional Chinese Medicine, Jinan University, Guangzhou, Guangdong 510632, China
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16
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Wang J, Chen Y, Chen L, Duan Y, Kuang X, Peng Z, Li C, Li Y, Xiao Y, Jin H, Tan Q, Zhang S, Zhu B, Tang Y. EGCG modulates PKD1 and ferroptosis to promote recovery in ST rats. Transl Neurosci 2020; 11:173-181. [PMID: 33335755 PMCID: PMC7712186 DOI: 10.1515/tnsci-2020-0119] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 04/25/2020] [Accepted: 04/28/2020] [Indexed: 12/18/2022] Open
Abstract
Background Spinal cord injury (SCI) causes devastating loss of function and neuronal death without effective treatment. (−)-Epigallocatechin-3-gallate (EGCG) has antioxidant properties and plays an essential role in the nervous system. However, the underlying mechanism by which EGCG promotes neuronal survival and functional recovery in complete spinal cord transection (ST) remains unclear. Methods In the present study, we established primary cerebellar granule neurons (CGNs) and a T10 ST rat model to investigate the antioxidant effects of EGCG via its modulation of protein kinase D1 (PKD1) phosphorylation and inhibition of ferroptosis. Results We revealed that EGCG significantly increased the cell survival rate of CGNs and PKD1 phosphorylation levels in comparison to the vehicle control, with a maximal effect observed at 50 µM. EGCG upregulated PKD1 phosphorylation levels and inhibited ferroptosis to reduce the cell death of CGNs under oxidative stress and to promote functional recovery and ERK phosphorylation in rats following complete ST. Conclusion Together, these results lay the foundation for EGCG as a novel strategy for the treatment of SCI related to PKD1 phosphorylation and ferroptosis.
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Affiliation(s)
- Jianjun Wang
- Affiliated Hospital, Xiangnan University, Chenzhou 423000, Hunan Province, China.,Department of Clinical, Xiangnan University, Chenzhou 423000, Hunan Province, China
| | - Ying Chen
- Jilong Union School of Hengnan County, Hengyang 421000, Hunan Province, China
| | - Long Chen
- Department of Clinical, Xiangnan University, Chenzhou 423000, Hunan Province, China
| | - Yanzhi Duan
- Department of Clinical, Xiangnan University, Chenzhou 423000, Hunan Province, China
| | - Xuejun Kuang
- Affiliated Hospital, Xiangnan University, Chenzhou 423000, Hunan Province, China
| | - Zhao Peng
- Affiliated Hospital, Xiangnan University, Chenzhou 423000, Hunan Province, China
| | - Conghui Li
- Affiliated Hospital, Xiangnan University, Chenzhou 423000, Hunan Province, China
| | - Yuanhao Li
- Department of Clinical, Xiangnan University, Chenzhou 423000, Hunan Province, China
| | - Yang Xiao
- Department of Clinical, Xiangnan University, Chenzhou 423000, Hunan Province, China
| | - Hao Jin
- Department of Clinical, Xiangnan University, Chenzhou 423000, Hunan Province, China
| | - Quandan Tan
- Department of Clinical, Xiangnan University, Chenzhou 423000, Hunan Province, China
| | - Shaofeng Zhang
- Department of Clinical, Xiangnan University, Chenzhou 423000, Hunan Province, China
| | - Bopei Zhu
- Department of Clinical, Xiangnan University, Chenzhou 423000, Hunan Province, China
| | - Yinjuan Tang
- Department of Basic Medical Sciences, Xiangnan University, Chenzhou 423000, Hunan Province, China
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Yu F, Witman N, Yan D, Zhang S, Zhou M, Yan Y, Yao Q, Ding F, Yan B, Wang H, Fu W, Lu Y, Fu Y. Human adipose-derived stem cells enriched with VEGF-modified mRNA promote angiogenesis and long-term graft survival in a fat graft transplantation model. Stem Cell Res Ther 2020; 11:490. [PMID: 33213517 PMCID: PMC7678328 DOI: 10.1186/s13287-020-02008-8] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Accepted: 11/03/2020] [Indexed: 12/19/2022] Open
Abstract
Background Fat grafting, as a standard treatment for numerous soft tissue defects, remains unpredictable and technique-dependent. Human adipose-derived stem cells (hADSCs) are promising candidates for cell-assisted therapy to improve graft survival. As free-living fat requires nutritional and respiratory sources to thrive, insufficient and unstable vascularization still impedes hADSC-assisted therapy. Recently, cytotherapy combined with modified mRNA (modRNA) encoding vascular endothelial growth factor (VEGF) has been applied for the treatment of ischemia-related diseases. Herein, we hypothesized that VEGF modRNA (modVEGF)-engineered hADSCs could robustly enhance fat survival in a fat graft transplantation model. Methods hADSCs were acquired from lipoaspiration and transfected with modRNAs. Transfection efficiency and expression kinetics of modRNAs in hADSCs were first evaluated in vitro. Next, we applied an in vivo Matrigel plug assay to assess the viability and angiogenic potential of modVEGF-engineered hADSCs at 1 week post-implantation. Finally, modVEGF-engineered hADSCs were co-transplanted with human fat in a murine model to analyze the survival rate, re-vascularization, proliferation, fibrosis, apoptosis, and necrosis of fat grafts over long-term follow-up. Results Transfections of modVEGF in hADSCs were highly tolerable as the modVEGF-engineered hADSCs facilitated burst-like protein production of VEGF in both our in vitro and in vivo models. modVEGF-engineered hADSCs induced increased levels of cellular proliferation and proangiogenesis when compared to untreated hADSCs in both ex vivo and in vivo assays. In a fat graft transplantation model, we provided evidence that modVEGF-engineered hADSCs promote the optimal potency to preserve adipocytes, especially in the long-term post-transplantation phase. Detailed histological analysis of fat grafts harvested at 15, 30, and 90 days following in vivo grafting suggested the release of VEGF protein from modVEGF-engineered hADSCs significantly improved neo-angiogenesis, vascular maturity, and cell proliferation. The modVEGF-engineered hADSCs also significantly mitigated the presence of fibrosis, apoptosis, and necrosis of grafts when compared to the control groups. Moreover, modVEGF-engineered hADSCs promoted graft survival and cell differentiation abilities, which also induced an increase in vessel formation and the number of surviving adipocytes after transplantation. Conclusion This current study demonstrates the employment of modVEGF-engineered hADSCs as an advanced alternative to the clinical treatment involving soft-tissue reconstruction and rejuvenation.
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Affiliation(s)
- Fei Yu
- Department of Ophthalmology, Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200011, China.,Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, 200011, China
| | - Nevin Witman
- Department of Cell and Molecular Biology, Karolinska Institute, Stockholm, Sweden
| | - Dan Yan
- Department of Ophthalmology, Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200011, China.,Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, 200011, China
| | - Siyi Zhang
- Department of Ophthalmology, Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200011, China.,Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, 200011, China
| | - Meng Zhou
- Department of Ophthalmology, Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200011, China.,Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, 200011, China
| | - Yan Yan
- Department of Ophthalmology, Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200011, China.,Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, 200011, China
| | - Qinke Yao
- Department of Ophthalmology, Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200011, China.,Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, 200011, China
| | - Feixue Ding
- Department of Plastic Surgery, Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200011, China
| | - Bingqian Yan
- Department of Pediatric Cardiothoracic Surgery, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China.,Institute of Pediatric Translational Medicine, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China
| | - Huijing Wang
- Department of Pediatric Cardiothoracic Surgery, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China.,Institute of Pediatric Translational Medicine, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China
| | - Wei Fu
- Department of Pediatric Cardiothoracic Surgery, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China. .,Institute of Pediatric Translational Medicine, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China.
| | - Yang Lu
- Department of Ophthalmology, Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200011, China. .,Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, 200011, China.
| | - Yao Fu
- Department of Ophthalmology, Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200011, China. .,Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, 200011, China.
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Wang J, Kuang X, Peng Z, Li C, Guo C, Fu X, Wu J, Luo Y, Rao X, Zhou X, Huang B, Tang W, Tang Y. EGCG treats ICH via up-regulating miR-137-3p and inhibiting Parthanatos. Transl Neurosci 2020; 11:371-379. [PMID: 33335777 PMCID: PMC7718614 DOI: 10.1515/tnsci-2020-0143] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Revised: 08/24/2020] [Accepted: 09/09/2020] [Indexed: 12/21/2022] Open
Abstract
Intracranial hemorrhage (ICH) causes high mortality and disability without effective treatment in the clinical setting. (-)-Epigallocatechin-3-gallate (EGCG) exerts an essential role in the central nervous system and offers a promising therapeutic agent for the treatment of oxidative damage-related diseases. MiR-137 can inhibit the oxidative stress and apoptosis to attenuate neuronal injury. However, the role of EGCG in regulating miR-137-3p and neuronal Parthanatos remains to be unclear. In the present study, we build the ICH mice model to investigate the antioxidant effects of EGCG via upregulating miR-137-3p and inhibiting neuronal Parthanatos. We revealed that EGCG upregulated miR-137-3p and inhibited neuronal Parthanatos, and promoted the functional recovery, alleviated ICH-induced brain injury, and reduced oxidative stress in mice following ICH. However, following the inhibition of miR-137-3p and activation of Parthanatos, EGCG was unable to exert neuroprotective roles. These combined results suggest that EGCG may upregulate miR-137-3p and inhibit neuronal Parthanatos to accelerate functional recovery in mice after ICH, laying the foundation for EGCG to be a novel strategy for the treatment of neuronal injuries related to Parthanatos.
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Affiliation(s)
- Jianjun Wang
- Affiliated hospital, Xiangnan University, Chenzhou, 423000, Hunan Province, China
- Department of Clinical, Xiangnan University, Chenzhou, 423000, Hunan Province, China
| | - Xuejun Kuang
- Affiliated hospital, Xiangnan University, Chenzhou, 423000, Hunan Province, China
| | - Zhao Peng
- Affiliated hospital, Xiangnan University, Chenzhou, 423000, Hunan Province, China
| | - Conghui Li
- Affiliated hospital, Xiangnan University, Chenzhou, 423000, Hunan Province, China
| | - Chengwu Guo
- Department of Basic Medical Sciences, Xiangnan University, Chenzhou, 423000, Hunan Province, China
| | - Xi Fu
- Department of Basic Medical Sciences, Xiangnan University, Chenzhou, 423000, Hunan Province, China
| | - Junhong Wu
- Department of Basic Medical Sciences, Xiangnan University, Chenzhou, 423000, Hunan Province, China
| | - Yang Luo
- Department of Basic Medical Sciences, Xiangnan University, Chenzhou, 423000, Hunan Province, China
| | - Xiaolin Rao
- Department of Basic Medical Sciences, Xiangnan University, Chenzhou, 423000, Hunan Province, China
| | - Xiangjuan Zhou
- Department of Basic Medical Sciences, Xiangnan University, Chenzhou, 423000, Hunan Province, China
| | - Bin Huang
- Department of Basic Medical Sciences, Xiangnan University, Chenzhou, 423000, Hunan Province, China
| | - Weijun Tang
- Department of Pharmacy, Xiangnan University, Chenzhou, 423000, Hunan Province, China
| | - Yinjuan Tang
- Department of Basic Medical Sciences, Xiangnan University, Chenzhou, 423000, Hunan Province, China
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Chen S, He B, Zhou G, Xu Y, Wu L, Xie Y, Li Y, Chen S, Huang J, Wu H, Xiao Z. Berberine enhances L1 expression and axonal remyelination in rats after brachial plexus root avulsion. Brain Behav 2020; 10:e01792. [PMID: 32770668 PMCID: PMC7559605 DOI: 10.1002/brb3.1792] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 06/17/2020] [Accepted: 07/19/2020] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND AND PURPOSE Enhanced remyelination of the regenerated axons results in functional re-innervation and improved functional motor recovery after brachial plexus root avulsion (BPRA). The neural cell adhesion molecule L1 (L1CAM, L1) regulates myelination and promotes regeneration after acute injury in the nervous system. Berberine (BBR) can exert neuroprotective roles against the lesion. Herein, we investigated whether berberine (BBR) can affect the expression of L1 and enhance the axonal remyelination in rats following BPRA. METHODS The surgical procedures were performed to build the rat brachial plexus avulsion and re-implantation model, and then, the rats were treated with BBR. After the rehabilitation for 12 weeks, the musculocutaneous nerves were collected for quantitative real-time PCR, Western blot analysis, and histochemical and immunofluorescence staining. RESULTS We observed that, BBR treatment ameliorated the abnormal musculocutaneous nerve fibers morphology, up-regulated the L1 expression, increased the myelination-related genes, decreased the differentiated-associated genes, and up-regulated the phosphorylation of ERK. CONCLUSION These results suggest that BBR may enhance L1 expression and promote axonal remyelination after spinal root avulsion.
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Affiliation(s)
- Shuangxi Chen
- The First Affiliated Hospital, University of South China, Hengyang, China
| | - Bing He
- The First Affiliated Hospital, University of South China, Hengyang, China
| | - Guijuan Zhou
- The First Affiliated Hospital, University of South China, Hengyang, China
| | - Yan Xu
- The First Affiliated Hospital, University of South China, Hengyang, China
| | - Lin Wu
- The First Affiliated Hospital, University of South China, Hengyang, China
| | - Yangzhi Xie
- The First Affiliated Hospital, University of South China, Hengyang, China.,Leiyang People's Hospital, Leiyang, China
| | - Yihui Li
- The First Affiliated Hospital, University of South China, Hengyang, China
| | - Shuangqin Chen
- The First Affiliated Hospital, University of South China, Hengyang, China
| | - Jianghua Huang
- The First Affiliated Hospital, University of South China, Hengyang, China
| | - Heng Wu
- The First Affiliated Hospital, University of South China, Hengyang, China
| | - Zijian Xiao
- The First Affiliated Hospital, University of South China, Hengyang, China
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20
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Xu C, Xiao Z, Wu H, Zhou G, He D, Chang Y, Li Y, Wang G, Xie M. BDMC protects AD in vitro via AMPK and SIRT1. Transl Neurosci 2020; 11:319-327. [PMID: 33335771 PMCID: PMC7712110 DOI: 10.1515/tnsci-2020-0140] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 08/04/2020] [Accepted: 08/13/2020] [Indexed: 01/02/2023] Open
Abstract
Background Alzheimer’s disease (AD) is a common neurodegenerative disorder without any satisfactory therapeutic approaches. AD is mainly characterized by the deposition of β-amyloid protein (Aβ) and extensive neuronal cell death. Curcumin, with anti-oxidative stress (OS) and cell apoptosis properties, plays essential roles in AD. However, whether bisdemethoxycurcumin (BDMC), a derivative of curcumin, can exert a neuroprotective effect in AD remains to be elucidated. Methods In this study, SK-N-SH cells were used to establish an in vitro model to investigate the effects of BDMC on the Aβ1–42-induced neurotoxicity. SK-N-SH cells were pretreated with BDMC and with or without compound C and EX527 for 30 min after co-incubation with rotenone for 24 h. Subsequently, western blotting, cell viability assay and SOD and GSH activity measurement were performed. Results BDMC increased the cell survival, anti-OS ability, AMPK phosphorylation levels and SIRT1 in SK-N-SH cells treated with Aβ1–42. However, after treatment with compound C, an AMPK inhibitor, and EX527, an SIRT1inhibitor, the neuroprotective roles of BDMC on SK-N-SH cells treated with Aβ1–42 were inhibited. Conclusion These results suggest that BDMC exerts a neuroprotective role on SK-N-SH cells in vitro via AMPK/SIRT1 signaling, laying the foundation for the application of BDMC in the treatment of neurodegenerative diseases related to AMPK/SIRT1 signaling.
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Affiliation(s)
- Chenlin Xu
- The First Affiliated Hospital, University of South China, Hengyang, Hunan 421001, People's Republic of China.,Xiangxi Autonomous Prefecture People's Hospital, Jishou, Hunan 416000, People's Republic of China
| | - Zijian Xiao
- The First Affiliated Hospital, University of South China, Hengyang, Hunan 421001, People's Republic of China
| | - Heng Wu
- The First Affiliated Hospital, University of South China, Hengyang, Hunan 421001, People's Republic of China
| | - Guijuan Zhou
- The First Affiliated Hospital, University of South China, Hengyang, Hunan 421001, People's Republic of China
| | - Duanqun He
- The First Affiliated Hospital, University of South China, Hengyang, Hunan 421001, People's Republic of China
| | - Yunqian Chang
- The First Affiliated Hospital, University of South China, Hengyang, Hunan 421001, People's Republic of China
| | - Yihui Li
- The First Affiliated Hospital, University of South China, Hengyang, Hunan 421001, People's Republic of China
| | - Gang Wang
- Department of Rehabilitation, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, People's Republic of China
| | - Ming Xie
- The First Affiliated Hospital, University of South China, Hengyang, Hunan 421001, People's Republic of China
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21
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Nelvagal HR, Dearborn JT, Ostergaard JR, Sands MS, Cooper JD. Spinal manifestations of CLN1 disease start during the early postnatal period. Neuropathol Appl Neurobiol 2020; 47:251-267. [PMID: 32841420 PMCID: PMC7867600 DOI: 10.1111/nan.12658] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 07/29/2020] [Accepted: 08/25/2020] [Indexed: 01/28/2023]
Abstract
Aim To understand the progression of CLN1 disease and develop effective therapies we need to characterize early sites of pathology. Therefore, we performed a comprehensive evaluation of the nature and timing of early CLN1 disease pathology in the spinal cord, which appears especially vulnerable, and how this may affect behaviour. Methods We measured the spinal volume and neuronal number, and quantified glial activation, lymphocyte infiltration and oligodendrocyte maturation, as well as cytokine profile analysis during the early stages of pathology in Ppt1‐deficient (Ppt1−/−) mouse spinal cords. We then performed quantitative gait analysis and open‐field behaviour tests to investigate the behavioural correlates during this period. Results We detected significant microglial activation in Ppt1−/− spinal cords at 1 month. This was followed by astrocytosis, selective interneuron loss, altered spinal volumes and oligodendrocyte maturation at 2 months, before significant storage material accumulation and lymphocyte infiltration at 3 months. The same time course was apparent for inflammatory cytokine expression that was altered as early as one month. There was a transient early period at 2 months when Ppt1−/− mice had a significantly altered gait that resembles the presentation in children with CLN1 disease. This occurred before an anticipated decline in overall locomotor performance across all ages. Conclusion These data reveal disease onset 2 months (25% of life‐span) earlier than expected, while spinal maturation is still ongoing. Our multi‐disciplinary data provide new insights into the spatio‐temporal staging of CLN1 pathogenesis during ongoing postnatal maturation, and highlight the need to deliver therapies during the presymptomatic period.
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Affiliation(s)
- H R Nelvagal
- Department of Pediatrics, Washington University in St Louis, School of Medicine, St Louis, MO, USA
| | - J T Dearborn
- Department of Medicine, Washington University in St Louis, School of Medicine, St Louis, MO, USA
| | - J R Ostergaard
- Centre for Rare Diseases, Department of Paediatrics and Adolescent Medicine, Aarhus University Hospital, Aarhus, Denmark
| | - M S Sands
- Department of Medicine, Washington University in St Louis, School of Medicine, St Louis, MO, USA.,Department of Genetics, Washington University in St Louis, School of Medicine, St Louis, MO, USA
| | - J D Cooper
- Department of Pediatrics, Washington University in St Louis, School of Medicine, St Louis, MO, USA.,Department of Genetics, Washington University in St Louis, School of Medicine, St Louis, MO, USA.,Department of Neurology, Washington University in St Louis, School of Medicine, St Louis, MO, USA
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22
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Stubbs EB. Targeting the blood-nerve barrier for the management of immune-mediated peripheral neuropathies. Exp Neurol 2020; 331:113385. [PMID: 32562668 DOI: 10.1016/j.expneurol.2020.113385] [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: 02/28/2020] [Revised: 06/03/2020] [Accepted: 06/15/2020] [Indexed: 02/07/2023]
Abstract
Healthy peripheral nerves encounter, with increased frequency, numerous chemical, biological, and biomechanical forces. Over time and with increasing age, these forces collectively contribute to the pathophysiology of a spectrum of traumatic, metabolic, and/or immune-mediated peripheral nerve disorders. The blood-nerve barrier (BNB) serves as a critical first-line defense against chemical and biologic insults while biomechanical forces are continuously buffered by a dense array of longitudinally orientated epineural collagen fibers exhibiting high-tensile strength. As emphasized throughout this Experimental Neurology Special Issue, the BNB is best characterized as a functionally dynamic multicellular vascular unit comprised of not only highly specialized endoneurial endothelial cells, but also associated perineurial cells, pericytes, Schwann cells, basement membrane, and invested axons. The composition of the BNB, while anatomically distinct, is not functionally dissimilar to that of the well characterized neurovascular unit of the central nervous system. While the BNB lacks a glial limitans and an astrocytic endfoot layer, the primary function of both vascular units is to establish, maintain, and protect an optimal endoneurial (PNS) or interstitial (CNS) fluid microenvironment that is vital for proper neuronal function. Altered endoneurial homeostasis as a secondary consequence of BNB dysregulation is considered an early pathological event in the course of a variety of traumatic, immune-mediated, or metabolically acquired peripheral neuropathies. In this review, emerging experimental advancements targeting the endoneurial microvasculature for the therapeutic management of immune-mediated inflammatory peripheral neuropathies, including the AIDP variant of Guillain-Barré syndrome, are discussed.
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Affiliation(s)
- Evan B Stubbs
- Research Service (151), Department of Veterans Affairs, Edward Hines Jr. VA Hospital, Hines, IL 60141, USA; Department of Ophthalmology, Loyola University Health Science Division, Maywood, IL 60153, USA.
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23
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Pinho AG, Cibrão JR, Silva NA, Monteiro S, Salgado AJ. Cell Secretome: Basic Insights and Therapeutic Opportunities for CNS Disorders. Pharmaceuticals (Basel) 2020; 13:E31. [PMID: 32093352 PMCID: PMC7169381 DOI: 10.3390/ph13020031] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Accepted: 02/18/2020] [Indexed: 12/13/2022] Open
Abstract
Transplantation of stem cells, in particular mesenchymal stem cells (MSCs), stands as a promising therapy for trauma, stroke or neurodegenerative conditions such as spinal cord or traumatic brain injuries (SCI or TBI), ischemic stroke (IS), or Parkinson's disease (PD). Over the last few years, cell transplantation-based approaches have started to focus on the use of cell byproducts, with a strong emphasis on cell secretome. Having this in mind, the present review discusses the current state of the art of secretome-based therapy applications in different central nervous system (CNS) pathologies. For this purpose, the following topics are discussed: (1) What are the main cell secretome sources, composition, and associated collection techniques; (2) Possible differences of the therapeutic potential of the protein and vesicular fraction of the secretome; and (3) Impact of the cell secretome on CNS-related problems such as SCI, TBI, IS, and PD. With this, we aim to clarify some of the main questions that currently exist in the field of secretome-based therapies and consequently gain new knowledge that may help in the clinical application of secretome in CNS disorders.
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Affiliation(s)
- Andreia G. Pinho
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, 4710-057 Braga, Portugal; (A.G.P.); (J.R.C.); (N.A.S.); (S.M.)
- ICVS/3B’s PT Government Associate Laboratory, 4710-057 Braga/Guimarães, Portugal
| | - Jorge R. Cibrão
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, 4710-057 Braga, Portugal; (A.G.P.); (J.R.C.); (N.A.S.); (S.M.)
- ICVS/3B’s PT Government Associate Laboratory, 4710-057 Braga/Guimarães, Portugal
| | - Nuno A. Silva
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, 4710-057 Braga, Portugal; (A.G.P.); (J.R.C.); (N.A.S.); (S.M.)
- ICVS/3B’s PT Government Associate Laboratory, 4710-057 Braga/Guimarães, Portugal
| | - Susana Monteiro
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, 4710-057 Braga, Portugal; (A.G.P.); (J.R.C.); (N.A.S.); (S.M.)
- ICVS/3B’s PT Government Associate Laboratory, 4710-057 Braga/Guimarães, Portugal
| | - António J. Salgado
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, 4710-057 Braga, Portugal; (A.G.P.); (J.R.C.); (N.A.S.); (S.M.)
- ICVS/3B’s PT Government Associate Laboratory, 4710-057 Braga/Guimarães, Portugal
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24
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Liu AM, Chen BL, Yu LT, Liu T, Shi LL, Yu PP, Qu YB, So KF, Zhou LB. Human adipose tissue- and umbilical cord-derived stem cells: which is a better alternative to treat spinal cord injury? Neural Regen Res 2020; 15:2306-2317. [PMID: 32594054 PMCID: PMC7749492 DOI: 10.4103/1673-5374.284997] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Multiple types of stem cells have been proposed for the treatment of spinal cord injury, but their comparative information remains elusive. In this study, a rat model of T10 contusion spinal cord injury was established by the impactor method. Human umbilical cord-derived mesenchymal stem cells (UCMSCs) or human adipose tissue-derived mesenchymal stem cells (ADMSCs) (2.5 μL/injection site, 1 × 105 cells/μL) was injected on rostral and caudal of the injury segment on the ninth day after injury. Rats injected with mesenchymal stem cell culture medium were used as controls. Our results show that although transplanted UCMSCs and ADMSCs failed to differentiate into neurons or glial cells in vivo, both significantly improved motor and sensory function. After spinal cord injury, UCMSCs and ADMSCs similarly promoted spinal neuron survival and axonal regeneration, decreased glial scar and lesion cavity formation, and reduced numbers of active macrophages. Bio-Plex analysis of spinal samples showed a specific increase of interleukin-10 and decrease of tumor necrosis factor α in the ADMSC group, as well as a downregulation of macrophage inflammatory protein 3α in both UCMSC and ADMSC groups at 3 days after cell transplantation. Upregulation of interleukin-10 and interleukin-13 was observed in both UCMSC and ADMSC groups at 7 days after cell transplantation. Isobaric tagging for relative and absolute quantitation proteomics analyses showed that UCMSCs and ADMSCs induced changes of multiple genes related to axonal regeneration, neurotrophy, and cell apoptosis in common and specific manners. In conclusion, UCMSC and ADMSC transplants yielded quite similar contributions to motor and sensory recovery after spinal cord injury via anti-inflammation and improved axonal growth. However, there were some differences in cytokine and gene expression induced by these two types of transplanted cells. Animal experiments were approved by the Laboratory Animal Ethics Committee at Jinan University (approval No. 20180228026) on February 28, 2018, and the application of human stem cells was approved by the Medical Ethics Committee of Medical College of Jinan University of China (approval No. 2016041303) on April 13, 2016.
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Affiliation(s)
- Ai-Mei Liu
- Guangdong-Hongkong-Macau Institute of CNS Regeneration, Ministry of Education CNS Regeneration Collaborative Joint Laboratory, Jinan University, Guangzhou, Guangdong Province, China
| | - Bo-Li Chen
- Guangdong-Hongkong-Macau Institute of CNS Regeneration, Ministry of Education CNS Regeneration Collaborative Joint Laboratory, Jinan University, Guangzhou, Guangdong Province, China
| | - Ling-Tai Yu
- Guangdong-Hongkong-Macau Institute of CNS Regeneration, Ministry of Education CNS Regeneration Collaborative Joint Laboratory, Jinan University, Guangzhou, Guangdong Province, China
| | - Tao Liu
- Guangdong-Hongkong-Macau Institute of CNS Regeneration, Ministry of Education CNS Regeneration Collaborative Joint Laboratory, Jinan University, Guangzhou, Guangdong Province, China
| | - Ling-Ling Shi
- Guangdong-Hongkong-Macau Institute of CNS Regeneration, Ministry of Education CNS Regeneration Collaborative Joint Laboratory, Jinan University, Guangzhou, Guangdong Province, China
| | - Pan-Pan Yu
- Guangdong-Hongkong-Macau Institute of CNS Regeneration, Ministry of Education CNS Regeneration Collaborative Joint Laboratory, Jinan University, Guangzhou, Guangdong Province, China
| | - Yi-Bo Qu
- Guangdong-Hongkong-Macau Institute of CNS Regeneration, Ministry of Education CNS Regeneration Collaborative Joint Laboratory, Jinan University, Guangzhou, Guangdong Province; Co-innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu Province, China
| | - Kwok-Fai So
- Guangdong-Hongkong-Macau Institute of CNS Regeneration, Ministry of Education CNS Regeneration Collaborative Joint Laboratory, Jinan University; Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangzhou, Guangdong Province; Co-innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu Province, China
| | - Li-Bing Zhou
- Guangdong-Hongkong-Macau Institute of CNS Regeneration, Ministry of Education CNS Regeneration Collaborative Joint Laboratory, Jinan University; Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangzhou, Guangdong Province; Co-innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu Province, China
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25
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Yuan N, Chen Y, Xia Y, Dai J, Liu C. Inflammation-related biomarkers in major psychiatric disorders: a cross-disorder assessment of reproducibility and specificity in 43 meta-analyses. Transl Psychiatry 2019; 9:233. [PMID: 31534116 PMCID: PMC6751188 DOI: 10.1038/s41398-019-0570-y] [Citation(s) in RCA: 216] [Impact Index Per Article: 43.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Accepted: 05/24/2019] [Indexed: 12/15/2022] Open
Abstract
Inflammation is a natural defence response of the immune system against environmental insult, stress and injury, but hyper- and hypo-inflammatory responses can trigger diseases. Accumulating evidence suggests that inflammation is involved in multiple psychiatric disorders. Using inflammation-related factors as biomarkers of psychiatric disorders requires the proof of reproducibility and specificity of the changes in different disorders, which remains to be established. We performed a cross-disorder study by systematically evaluating the meta-analysis results of inflammation-related factors in eight major psychiatric disorders, including schizophrenia (SCZ), bipolar disorder (BD), autism spectrum disorder (ASD), major depression disorder (MDD), post-trauma stress disorder (PTSD), sleeping disorder (SD), obsessive-compulsive disorder (OCD) and suicide. A total of 43 meta-analyses involving 704 publications on 44 inflammation-related factors were included in the study. We calculated the effect size and statistical power for every inflammation-related factor in each disorder. Our analyses showed that well-powered case-control studies provided more consistent results than underpowered studies when one factor was meta-analysed by different researchers. After removing underpowered studies, 30 of the 44 inflammation-related factors showed significant alterations in at least one disorder based on well-powered meta-analyses. Eleven of them changed in patients of more than two disorders when compared with the controls. A few inflammation-related factors showed unique changes in specific disorders (e.g., IL-4 increased in BD, decreased in suicide, but had no change in MDD, ASD, PTSD and SCZ). MDD had the largest number of changes while SD has the least. Clustering analysis showed that closely related disorders share similar patterns of inflammatory changes, as genome-wide genetic studies have found. According to the effect size obtained from the meta-analyses, 13 inflammation-related factors would need <50 cases and 50 controls to achieve 80% power to show significant differences (p < 0.0016) between patients and controls. Changes in different states of MDD, SCZ or BD were also observed in various comparisons. Studies comparing first-episode SCZ to controls may have more reproducible findings than those comparing pre- and post-treatment results. Longitudinal, system-wide studies of inflammation regulation that can differentiate trait- and state-specific changes will be needed to establish valuable biomarkers.
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Affiliation(s)
- Ning Yuan
- Department of Psychiatry, The Second Xiangya Hospital; Mental health Institute of the Second Xiangya Hospital; National Clinical Research Center on Mental Disorders; National Technology Institute on Mental Disorders, Central South University, Changsha, Hunan, China
- Department of Psychiatry, Hunan Provincial Brain Hospital; Clinical Research Center for Mental Behavioral Disorder in Hunan Province, Clinical Medical School of Hunan University of Chinese Medicine, Changsha, Hunan, China
| | - Yu Chen
- Center for Medical Genetics & Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, Hunan, China
| | - Yan Xia
- Center for Medical Genetics & Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, Hunan, China
- Department of Psychiatry, SUNY Upstate Medical University, Syracuse, NY, USA
| | - Jiacheng Dai
- Center for Medical Genetics & Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, Hunan, China
| | - Chunyu Liu
- Center for Medical Genetics & Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, Hunan, China.
- Department of Psychiatry, SUNY Upstate Medical University, Syracuse, NY, USA.
- School of Psychology, Shaanxi Normal University, Xi'an, Shaanxi, China.
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26
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Yu Z, Witman N, Wang W, Li D, Yan B, Deng M, Wang X, Wang H, Zhou G, Liu W, Sahara M, Cao Y, Fritsche-Danielson R, Zhang W, Fu W, Chien KR. Cell-mediated delivery of VEGF modified mRNA enhances blood vessel regeneration and ameliorates murine critical limb ischemia. J Control Release 2019; 310:103-114. [PMID: 31425721 DOI: 10.1016/j.jconrel.2019.08.014] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2019] [Revised: 08/05/2019] [Accepted: 08/15/2019] [Indexed: 01/20/2023]
Abstract
Synthetic chemically modified mRNAs (modRNA) encoding vascular endothelial growth factor (VEGF) represents an alternative to gene therapy for the treatment of ischemic cardiovascular injuries. However, novel delivery approaches of modRNA are needed to improve therapeutic efficacy in the diseased setting. We hypothesized that cell-mediated modRNA delivery may enhance the in vivo expression kinetics of VEGF protein thus promoting more potent angiogenic effects. Here, we employed skin fibroblasts as a "proof of concept" to probe the therapeutic potential of a cell-mediated mRNA delivery system in a murine model of critical limb ischemia (CLI). We show that fibroblasts pre-treated with VEGF modRNA have the potential to fully salvage ischemic limbs. Using detailed molecular analysis we reveal that a fibroblast-VEGF modRNA combinatorial treatment significantly reduced tissue necrosis and dramatically improved vascular densities in CLI-injured limbs when compared to control and vehicle groups. Furthermore, fibroblast-delivered VEGF modRNA treatment increased the presence of Pax7+ satellite cells, indicating a possible correlation between VEGF and satellite cell activity. Our study is the first to demonstrate that a cell-mediated modRNA therapy could be an alternative advanced strategy for cardiovascular diseases.
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Affiliation(s)
- Ziyou Yu
- Department of Plastic and Reconstructive Surgery, Shanghai Key Laboratory of Tissue Engineering, Shanghai 9th People's Hospital, School of Medicine, Shanghai Jiao Tong University, 639 Zhi Zao Ju Road, Shanghai 200011, China
| | - Nevin Witman
- Department of Medicine, Karolinska Institutet, Stockholm, Sweden; Department of Cell and Molecular Biology, Karolinska Institutet, Stockholm, Sweden
| | - Wenbo Wang
- Department of Plastic and Reconstructive Surgery, Shanghai Key Laboratory of Tissue Engineering, Shanghai 9th People's Hospital, School of Medicine, Shanghai Jiao Tong University, 639 Zhi Zao Ju Road, Shanghai 200011, China
| | - Dong Li
- Department of Plastic and Reconstructive Surgery, Shanghai Key Laboratory of Tissue Engineering, Shanghai 9th People's Hospital, School of Medicine, Shanghai Jiao Tong University, 639 Zhi Zao Ju Road, Shanghai 200011, China
| | - Bingqian Yan
- Institute of Pediatric Translational Medicine, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, 1678 Dong Fang Road, Shanghai 200127, China; Department of Pediatric Cardiothoracic Surgery, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, 1678 Dong Fang Road, Shanghai 200127, China
| | - Mingwu Deng
- Department of Plastic and Reconstructive Surgery, Shanghai Key Laboratory of Tissue Engineering, Shanghai 9th People's Hospital, School of Medicine, Shanghai Jiao Tong University, 639 Zhi Zao Ju Road, Shanghai 200011, China
| | - Xiangsheng Wang
- Department of Plastic and Reconstructive Surgery, Shanghai Key Laboratory of Tissue Engineering, Shanghai 9th People's Hospital, School of Medicine, Shanghai Jiao Tong University, 639 Zhi Zao Ju Road, Shanghai 200011, China
| | - Huijing Wang
- Institute of Pediatric Translational Medicine, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, 1678 Dong Fang Road, Shanghai 200127, China; Department of Pediatric Cardiothoracic Surgery, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, 1678 Dong Fang Road, Shanghai 200127, China
| | - Guangdong Zhou
- Department of Plastic and Reconstructive Surgery, Shanghai Key Laboratory of Tissue Engineering, Shanghai 9th People's Hospital, School of Medicine, Shanghai Jiao Tong University, 639 Zhi Zao Ju Road, Shanghai 200011, China
| | - Wei Liu
- Department of Plastic and Reconstructive Surgery, Shanghai Key Laboratory of Tissue Engineering, Shanghai 9th People's Hospital, School of Medicine, Shanghai Jiao Tong University, 639 Zhi Zao Ju Road, Shanghai 200011, China
| | - Makoto Sahara
- Department of Cell and Molecular Biology, Karolinska Institutet, Stockholm, Sweden
| | - Yilin Cao
- Department of Plastic and Reconstructive Surgery, Shanghai Key Laboratory of Tissue Engineering, Shanghai 9th People's Hospital, School of Medicine, Shanghai Jiao Tong University, 639 Zhi Zao Ju Road, Shanghai 200011, China
| | - Regina Fritsche-Danielson
- Research and Early Clinical Development, Cardiovascular, Renal and Metabolism, Biopharmaceuticals R&D, AstraZeneca, Pepparedsleden 1, Gothenburg, 43183, Sweden
| | - Wenjie Zhang
- Department of Plastic and Reconstructive Surgery, Shanghai Key Laboratory of Tissue Engineering, Shanghai 9th People's Hospital, School of Medicine, Shanghai Jiao Tong University, 639 Zhi Zao Ju Road, Shanghai 200011, China.
| | - Wei Fu
- Institute of Pediatric Translational Medicine, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, 1678 Dong Fang Road, Shanghai 200127, China; Department of Pediatric Cardiothoracic Surgery, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, 1678 Dong Fang Road, Shanghai 200127, China.
| | - Kenneth R Chien
- Department of Medicine, Karolinska Institutet, Stockholm, Sweden; Department of Cell and Molecular Biology, Karolinska Institutet, Stockholm, Sweden.
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Shen H, Chen X, Li X, Jia K, Xiao Z, Dai J. Transplantation of adult spinal cord grafts into spinal cord transected rats improves their locomotor function. SCIENCE CHINA-LIFE SCIENCES 2019; 62:725-733. [DOI: 10.1007/s11427-019-9490-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2019] [Accepted: 01/22/2019] [Indexed: 12/22/2022]
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Chen S, Hou Y, Zhao Z, Luo Y, Lv S, Wang Q, Li J, He L, Zhou L, Wu W. Neuregulin-1 Accelerates Functional Motor Recovery by Improving Motoneuron Survival After Brachial Plexus Root Avulsion in Mice. Neuroscience 2019; 404:510-518. [PMID: 30731156 DOI: 10.1016/j.neuroscience.2019.01.054] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Revised: 01/16/2019] [Accepted: 01/28/2019] [Indexed: 12/14/2022]
Abstract
Brachial plexus root avulsion (BPRA) results in the complete loss of motor function in the upper limb, mainly due to the death of spinal motoneurons (MNs). The survival of spinal MNs is the key to the recovery of motor function. Neuregulin-1 (Nrg1) plays fundamental roles in nervous system development and nerve repair. However, its functional role in BPRA remains unclear. On the basis of our findings that Nrg1 is down-regulated in the ventral horn in a mouse model of BPRA, Nrg1 may be associated with BPRA. Here, we investigated whether recombinant Nrg1β (rNrg1β) can enhance the survival of spinal MNs and improve functional recovery in mice following BPRA. In vitro studies on primary cultured mouse MNs showed that rNrg1β increased the survival rate in a dose-dependent manner, reaching a peak at 5 nM, which increased the survival rate and enhanced the pERK levels in MNs under H2O2-induced oxidative stress. In vivo studies revealed that rNrg1β improved the functional recovery of elbow flexion, promoted the survival of MNs, enhanced the re-innervation of biceps brachii, and decreased the muscle atrophy. These results suggest that Nrg1 may provide a potential therapeutic strategy for root avulsion.
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Affiliation(s)
- Shuangxi Chen
- Guangdong-Hong Kong-Macau Institute of CNS Regeneration, Ministry of Education CNS Regeneration Collaborative Joint Laboratory, Jinan University, Guangzhou, China
| | - Yuhui Hou
- Guangdong-Hong Kong-Macau Institute of CNS Regeneration, Ministry of Education CNS Regeneration Collaborative Joint Laboratory, Jinan University, Guangzhou, China
| | - Zhikai Zhao
- Guangdong-Hong Kong-Macau Institute of CNS Regeneration, Ministry of Education CNS Regeneration Collaborative Joint Laboratory, Jinan University, Guangzhou, China
| | - Yunhao Luo
- Guangdong-Hong Kong-Macau Institute of CNS Regeneration, Ministry of Education CNS Regeneration Collaborative Joint Laboratory, Jinan University, Guangzhou, China
| | - Shiqin Lv
- Guangdong-Hong Kong-Macau Institute of CNS Regeneration, Ministry of Education CNS Regeneration Collaborative Joint Laboratory, Jinan University, Guangzhou, China
| | - Qianghua Wang
- Guangdong-Hong Kong-Macau Institute of CNS Regeneration, Ministry of Education CNS Regeneration Collaborative Joint Laboratory, Jinan University, Guangzhou, China
| | - Jing Li
- Guangdong-Hong Kong-Macau Institute of CNS Regeneration, Ministry of Education CNS Regeneration Collaborative Joint Laboratory, Jinan University, Guangzhou, China
| | - Liumin He
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Department of Biomedical Engineering, College of Life Science and Technology, Jinan University, Guangzhou, China
| | - Libing Zhou
- Guangdong-Hong Kong-Macau Institute of CNS Regeneration, Ministry of Education CNS Regeneration Collaborative Joint Laboratory, Jinan University, Guangzhou, China
| | - Wutian Wu
- Guangdong-Hong Kong-Macau Institute of CNS Regeneration, Ministry of Education CNS Regeneration Collaborative Joint Laboratory, Jinan University, Guangzhou, China; Re-Stem Biotechnology Co., Ltd., Suzhou, China.
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Li X, Chen S, Mao L, Li D, Xu C, Tian H, Mei X. Zinc Improves Functional Recovery by Regulating the Secretion of Granulocyte Colony Stimulating Factor From Microglia/Macrophages After Spinal Cord Injury. Front Mol Neurosci 2019; 12:18. [PMID: 30774583 PMCID: PMC6367229 DOI: 10.3389/fnmol.2019.00018] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Accepted: 01/17/2019] [Indexed: 01/19/2023] Open
Abstract
While zinc promotes motor function recovery after spinal cord injury (SCI), the precise mechanisms involved are not fully understood. The present study aimed to elucidate the effects of zinc and granulocyte colony stimulating factor (G-CSF) on neuronal recovery after SCI. The SCI model was established by Allen's method. Injured animals were given glucose and zinc gluconate (ZnG; 30 mg/kg) for the first time at 2 h after injury, the same dose was given for 3 days. A cytokine antibody array was used to screen changes in inflammation at the site of SCI lesion. Immunofluorescence was used to detect the distribution of cytokines. Magnetic beads were also used to isolate cells from the site of SCI lesion. We then investigated the effect of Zinc on apoptosis after SCI by Transferase UTP Nick End Labeling (TUNEL) staining and Western Blotting. Basso Mouse Scale (BMS) scores and immunofluorescence were employed to investigate neuronal apoptosis and functional recovery. We found that the administration of zinc significantly increased the expression of 19 cytokines in the SCI lesion. Of these, G-CSF was shown to be the most elevated cytokine and was secreted by microglia/macrophages (M/Ms) via the nuclear factor-kappa B (NF-κB) signaling pathway after SCI. Increased levels of G-CSF at the SCI lesion reduced the level of neuronal apoptosis after SCI, thus promoting functional recovery. Collectively, our results indicate that the administration of zinc increases the expression of G-CSF secreted by M/Ms, which then leads to reduced levels of neuronal apoptosis after SCI.
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Affiliation(s)
- Xian Li
- Department of Orthopedics, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Shurui Chen
- Department of Orthopedics, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Liang Mao
- Department of Oncology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Daoyong Li
- Department of Orthopedics, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Chang Xu
- Department of Orthopedics, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - He Tian
- Department of Histology and Embryology, Jinzhou Medical University, Jinzhou, China
| | - Xifan Mei
- Department of Orthopedics, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
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Wang T, Zeng LN, Zhu Z, Wang YH, Ding L, Luo WB, Zhang XM, He ZW, Wu HF. Effect of lentiviral vector-mediated overexpression of hypoxia-inducible factor 1 alpha delivered by pluronic F-127 hydrogel on brachial plexus avulsion in rats. Neural Regen Res 2019; 14:1069-1078. [PMID: 30762021 PMCID: PMC6404506 DOI: 10.4103/1673-5374.250629] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Brachial plexus avulsion often results in massive motor neuron death and severe functional deficits of target muscles. However, no satisfactory treatment is currently available. Hypoxia-inducible factor 1α is a critical molecule targeting several genes associated with ischemia-hypoxia damage and angiogenesis. In this study, a rat model of brachial plexus avulsion-reimplantation was established, in which C5–7 ventral nerve roots were avulsed and only the C6 root reimplanted. Different implants were immediately injected using a microsyringe into the avulsion-reimplantation site of the C6 root post-brachial plexus avulsion. Rats were randomly divided into five groups: phosphate-buffered saline, negative control of lentivirus, hypoxia-inducible factor 1α (hypoxia-inducible factor 1α overexpression lentivirus), gel (pluronic F-127 hydrogel), and gel + hypoxia-inducible factor 1α (pluronic F-127 hydrogel + hypoxia-inducible factor 1α overexpression lentivirus). The Terzis grooming test was performed to assess recovery of motor function. Scores were higher in the hypoxia-inducible factor 1α and gel + hypoxia-inducible factor 1α groups (in particular the gel + hypoxia-inducible factor 1α group) compared with the phosphate-buffered saline group. Electrophysiology, fluorogold retrograde tracing, and immunofluorescent staining were further performed to investigate neural pathway reconstruction and changes of neurons, motor endplates, and angiogenesis. Compared with the phosphate-buffered saline group, action potential latency of musculocutaneous nerves was markedly shortened in the hypoxia-inducible factor 1α and gel + hypoxia-inducible factor 1α groups. Meanwhile, the number of fluorogold-positive cells and ChAT-positive neurons, neovascular area (labeled by CD31 around avulsed sites in ipsilateral spinal cord segments), and the number of motor endplates in biceps brachii (identified by α-bungarotoxin) were all visibly increased, as well as the morphology of motor endplate in biceps brachil was clear in the hypoxia-inducible factor 1α and gel + hypoxia-inducible factor 1α groups. Taken together, delivery of hypoxia-inducible factor 1α overexpression lentiviral vectors mediated by pluronic F-127 effectively promotes spinal root regeneration and functional recovery post-brachial plexus avulsion. All animal procedures were approved by the Institutional Animal Care and Use Committee of Guangdong Medical University, China.
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Affiliation(s)
- Tao Wang
- Institute of Stem Cells and Regenerative Medicine, Department of Physiology, Guangdong Medical University, Dongguan; Department of Surgery, the Third Hospital of Guangdong Medical University (Longjiang Hospital of Shunde District), Foshan, Guangdong Province, China
| | - Li-Ni Zeng
- Institute of Stem Cells and Regenerative Medicine, Department of Physiology, Guangdong Medical University, Dongguan, Guangdong Province, China
| | - Zhe Zhu
- Hand & Foot Surgery and Reparative & Reconstruction Surgery Center, the Second Hospital of Jilin University, Changchun, Jilin Province, China
| | - Yu-Hui Wang
- Institute of Stem Cells and Regenerative Medicine, Department of Physiology, Guangdong Medical University, Dongguan; Department of Surgery, the Third Hospital of Guangdong Medical University (Longjiang Hospital of Shunde District), Foshan, Guangdong Province, China
| | - Lu Ding
- Department of Scientific Research Center, the Seventh Affiliated Hospital, Sun Yat-Sen University, Shenzhen, Guangdong Province, China
| | - Wei-Bin Luo
- Institute of Stem Cells and Regenerative Medicine, Department of Physiology, Guangdong Medical University, Dongguan; Department of Surgery, the Third Hospital of Guangdong Medical University (Longjiang Hospital of Shunde District), Foshan, Guangdong Province, China
| | - Xiao-Min Zhang
- Institute of Stem Cells and Regenerative Medicine, Department of Physiology, Guangdong Medical University, Dongguan, Guangdong Province, China
| | - Zhi-Wei He
- Institute of Stem Cells and Regenerative Medicine, Department of Physiology, Guangdong Medical University, Dongguan, Guangdong Province, China
| | - Hong-Fu Wu
- Institute of Stem Cells and Regenerative Medicine, Department of Physiology, Guangdong Medical University, Dongguan, Guangdong Province, China
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Yang X, Chen S, Shao Z, Li Y, Wu H, Li X, Mao L, Zhou Z, Bai L, Mei X, Liu C. Apolipoprotein E Deficiency Exacerbates Spinal Cord Injury in Mice: Inflammatory Response and Oxidative Stress Mediated by NF-κB Signaling Pathway. Front Cell Neurosci 2018; 12:142. [PMID: 29875635 PMCID: PMC5974465 DOI: 10.3389/fncel.2018.00142] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2017] [Accepted: 05/09/2018] [Indexed: 12/30/2022] Open
Abstract
Spinal cord injury (SCI) is a severe neurological trauma that involves complex pathological processes. Inflammatory response and oxidative stress are prevalent during the second injury and can influence the functional recovery of SCI. Specially, Apolipoprotein E (APOE) induces neuronal repair and nerve regeneration, and the deficiency of Apoe impairs spinal cord-blood-barrier and reduces functional recovery after SCI. However, the mechanism by which Apoe mediates signaling pathways of inflammatory response and oxidative stress in SCI remains largely elusive. This study was designed to investigate the signaling pathways that regulate Apoe deficiency-dependent inflammatory response and oxidative stress in the acute stage of SCI. In the present study, Apoe−/− mice retarded functional recovery and had a larger lesion size when compared to wild-type mice after SCI. Moreover, deficiency of Apoe induced an exaggerated inflammatory response by increasing expression of interleukin-6 (IL-6) and interleukin-1β (IL-1β), and increased oxidative stress by reducing expression of Nrf2 and HO-1. Furthermore, lack of Apoe promoted neuronal apoptosis and decreased neuronal numbers in the anterior horn of the spinal cord after SCI. Mechanistically, we found that the absence of Apoe increased inflammation and oxidative stress through activation of NF-κB after SCI. In contrast, an inhibitor of nuclear factor-κB (NF-κB; Pyrrolidine dithiocarbamate) alleviates these changes. Collectively, these results indicate that a critical role for activation of NF-κB in regulating Apoe-deficiency dependent inflammation and oxidative stress is detrimental to recovery after SCI.
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Affiliation(s)
- Xuan Yang
- School of Nursing, Jinzhou Medical University, Jinzhou, China
| | - Shurui Chen
- Department of Orthopedics, First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Zhenya Shao
- Department of Orthopedics, First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Yuanlong Li
- Department of Orthopedics, First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - He Wu
- Department of Endocrinology, First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Xian Li
- Department of Orthopedics, Third Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Liang Mao
- Department of Oncology, First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Zipeng Zhou
- Department of Orthopedics, First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Liangjie Bai
- Department of Orthopedics, First Affiliated Hospital of China Medical University, Shenyang, China
| | - Xifan Mei
- Department of Orthopedics, First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Chang Liu
- Department of Endocrinology, First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
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Haggerty AE, Maldonado-Lasunción I, Oudega M. Biomaterials for revascularization and immunomodulation after spinal cord injury. ACTA ACUST UNITED AC 2018; 13:044105. [PMID: 29359704 DOI: 10.1088/1748-605x/aaa9d8] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Spinal cord injury (SCI) causes immediate damage to the nervous tissue accompanied by loss of motor and sensory function. The limited self-repair competence of injured nervous tissue underscores the need for reparative interventions to recover function after SCI. The vasculature of the spinal cord plays a crucial role in SCI and repair. Ruptured and sheared blood vessels in the injury epicenter and blood vessels with a breached blood-spinal cord barrier (BSCB) in the surrounding tissue cause bleeding and inflammation, which contribute to the overall tissue damage. The insufficient formation of new functional vasculature in and near the injury impedes endogenous tissue repair and limits the prospect of repair approaches. Limiting the loss of blood vessels, stabilizing the BSCB, and promoting the formation of new blood vessels are therapeutic targets for spinal cord repair. Inflammation is an integral part of injury-mediated vascular damage, which has deleterious and reparative consequences. Inflammation and the formation of new blood vessels are intricately interwoven. Biomaterials can be effectively used for promoting and guiding blood vessel formation or modulating the inflammatory response after SCI, thereby governing the extent of damage and the success of reparative interventions. This review deals with the vasculature after SCI, the reciprocal interactions between inflammation and blood vessel formation, and the potential of biomaterials to support revascularization and immunomodulation in damaged spinal cord nervous tissue.
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Affiliation(s)
- Agnes E Haggerty
- The Miami Project to Cure Paralysis, University of Miami Miller School of Medicine, Miami, FL, United States of America
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