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Grijalva-Otero I, Doncel-Pérez E. Traumatic Human Spinal Cord Injury: Are Single Treatments Enough to Solve the Problem? Arch Med Res 2024; 55:102935. [PMID: 38157747 DOI: 10.1016/j.arcmed.2023.102935] [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: 07/03/2023] [Revised: 10/17/2023] [Accepted: 12/11/2023] [Indexed: 01/03/2024]
Abstract
Traumatic spinal cord injury (SCI) results in partial or complete motor deficits, such as paraplegia, tetraplegia, and sphincter control, as well as sensory disturbances and autonomic dysregulation such as arterial hypotension, lack of sweating, and alterations in skin lability. All this has a strong psychological impact on the affected person and his/her family, as well as costs to healthcare institutions with an economic burden in the short, medium, and long terms. Despite at least forty years of experimental animal studies and several clinical trials with different therapeutic strategies, effective therapy is not universally accepted. Most of the published works on acute and chronic injury use a single treatment, such as medication, trophic factor, transplant of a cell type, and so on, to block some secondary injury mechanisms or promote some mechanisms of structural/functional restoration. However, despite significant results in experimental models, the outcome is a moderate improvement in muscle strength, sensation, or eventually in sphincter control, which has been considered non-significant in human clinical trials. Here we present a brief compilation of successful individual treatments that have been applied to secondary mechanisms of action. These studies show limited neuroprotective or neurorestorative approaches in animal models and clinical trials. Thus, the few benefits achieved so far represent a rationale to further explore other strategies that seek better structural and functional restoration of the injured spinal cord.
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Affiliation(s)
- Israel Grijalva-Otero
- Medical Research Unit for Neurological Diseases, Unidad Médica de Alta Especialidad, Hospital de Especialidades, Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Mexico City, Mexico.
| | - Ernesto Doncel-Pérez
- Neural Regeneration Group, Hospital Nacional de Parapléjicos de Toledo, Servicios de Salud de Castilla-La Mancha, Toledo, Spain
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Khotimchenko YS, Silachev DN, Katanaev VL. Marine Natural Products from the Russian Pacific as Sources of Drugs for Neurodegenerative Diseases. Mar Drugs 2022; 20:708. [PMID: 36421986 PMCID: PMC9697637 DOI: 10.3390/md20110708] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 11/07/2022] [Accepted: 11/09/2022] [Indexed: 09/05/2023] Open
Abstract
Neurodegenerative diseases are growing to become one of humanity's biggest health problems, given the number of individuals affected by them. They cause enough mortalities and severe economic impact to rival cancers and infections. With the current diversity of pathophysiological mechanisms involved in neurodegenerative diseases, on the one hand, and scarcity of efficient prevention and treatment strategies, on the other, all possible sources for novel drug discovery must be employed. Marine pharmacology represents a relatively uncharted territory to seek promising compounds, despite the enormous chemodiversity it offers. The current work discusses one vast marine region-the Northwestern or Russian Pacific-as the treasure chest for marine-based drug discovery targeting neurodegenerative diseases. We overview the natural products of neurological properties already discovered from its waters and survey the existing molecular and cellular targets for pharmacological modulation of the disease. We further provide a general assessment of the drug discovery potential of the Russian Pacific in case of its systematic development to tackle neurodegenerative diseases.
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Affiliation(s)
- Yuri S. Khotimchenko
- Institute of Life Sciences and Biomedicine, Far Eastern Federal University, 8 ul. Sukhanova, 690950 Vladivostok, Russia
- A.V. Zhirmunsky National Center of Marine Biology, Far Eastern Branch, Russian Academy of Sciences, 690950 Vladivostok, Russia
| | - Denis N. Silachev
- Department of Functional Biochemistry of Biopolymers, A.N. Belozersky Research Institute of Physico-Chemical Biology, Moscow State University, 119992 Moscow, Russia
| | - Vladimir L. Katanaev
- Institute of Life Sciences and Biomedicine, Far Eastern Federal University, 8 ul. Sukhanova, 690950 Vladivostok, Russia
- Department of Cell Physiology and Metabolism, Translational Research Centre in Oncohaematology, Faculty of Medicine, University of Geneva, Rue Michel-Servet 1, 1211 Geneva, Switzerland
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3
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D'avila LF, Dias VT, Trevizol F, Metz VG, Roversi K, Milanesi L, Maurer LH, Baranzelli J, Emanuelli T, Burger ME. INTERESTERIFIED FAT MATERNAL CONSUMPTION BEFORE CONCEPTION PROGRAMMS MEMORY AND LEARNING OF ADULTHOOD OFFSPRING: how big is this deleterious repercussion? Toxicol Lett 2022; 361:10-20. [PMID: 35301046 DOI: 10.1016/j.toxlet.2022.03.002] [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: 10/14/2021] [Revised: 03/02/2022] [Accepted: 03/07/2022] [Indexed: 11/25/2022]
Abstract
In recent years, interesterified fat (IF) has largely replaced trans fat in industrialized food. Studies of our research group showed that IF consumption may not be safe for central nervous system (CNS) functions. Our current aim was to evaluate IF maternal consumption before conception on cognitive performance of adult rat offspring. Female Wistar rats were fed with standard chow plus 20% soybean and fish oil mix (control group) or plus 20% IF from weaning until adulthood (before mating), when the diets were replaced by standard chow only. Following the gestation and pups' development, locomotion and memory performance followed by neurotrophin immunocontent and fatty acids (FA) profile in the hippocampus of the adulthood male offspring were quantified. Maternal IF consumption before conception decreased hippocampal palmitoleic acid incorporation, proBDNF and BDNF levels, decreasing both exploratory activity and memory performance in adult offspring. Considering that, the adult male offspring did not consume IF directly, further studies are needed to understand the molecular mechanisms and if the IF maternal preconception consumption could induce the epigenetic changes observed here. Our outcomes reinforce an immediate necessity to monitor and / or question the replacement of trans fat by IF with further studies involving CNS functions.
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Affiliation(s)
- Lívia Ferraz D'avila
- Programa de Pós-Graduação em Farmacologia, Universidade Federal de Santa Maria (UFSM), RS, Brazil.
| | - Verônica Tironi Dias
- Programa de Pós-Graduação em Farmacologia, Universidade Federal de Santa Maria (UFSM), RS, Brazil.
| | - Fabíola Trevizol
- Programa de Pós-Graduação em Farmacologia, Universidade Federal de Santa Maria (UFSM), RS, Brazil.
| | - Vinícia Garzella Metz
- Programa de Pós-Graduação em Farmacologia, Universidade Federal de Santa Maria (UFSM), RS, Brazil.
| | - Karine Roversi
- Programa de Pós-Graduação em Farmacologia, Universidade Federal de Santa Maria (UFSM), RS, Brazil.
| | - Laura Milanesi
- Programa de Pós-Graduação em Farmacologia, Universidade Federal de Santa Maria (UFSM), RS, Brazil.
| | - Luana Haselein Maurer
- Programa de Pós-graduação em Ciência e Tecnologia dos Alimentos, Universidade Federal de Santa Maria (UFSM), RS, Brazil.
| | - Júlia Baranzelli
- Programa de Pós-graduação em Ciência e Tecnologia dos Alimentos, Universidade Federal de Santa Maria (UFSM), RS, Brazil.
| | - Tatiana Emanuelli
- Programa de Pós-graduação em Ciência e Tecnologia dos Alimentos, Universidade Federal de Santa Maria (UFSM), RS, Brazil.
| | - Marilise Escobar Burger
- Programa de Pós-Graduação em Farmacologia, Universidade Federal de Santa Maria (UFSM), RS, Brazil; Departamento de Fisiologia e Farmacologia, Universidade Federal de Santa Maria (UFSM), RS, Brazil.
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Campos J, Silva NA, Salgado AJ. Nutritional interventions for spinal cord injury: preclinical efficacy and molecular mechanisms. Nutr Rev 2021; 80:1206-1221. [PMID: 34472615 DOI: 10.1093/nutrit/nuab068] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Spinal cord injury (SCI) is a debilitating condition that leads to motor, sensory, and autonomic impairments. Its intrinsic pathophysiological complexity has hindered the establishment of effective treatments for decades. Nutritional interventions (NIs) for SCI have been proposed as a route to circumvent some of the problems associated with this condition. Results obtained in animal models point to a more holistic effect, rather than to specific modulation, of several relevant SCI pathophysiological processes. Indeed, published data have shown NI improves energetic imbalance, oxidative damage, and inflammation, which are promoters of improved proteostasis and neurotrophic signaling, leading ultimately to neuroprotection and neuroplasticity. This review focuses on the most well-documented Nis. The mechanistic implications and their translational potential for SCI are discussed.
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Affiliation(s)
- Jonas Campos
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Nuno A Silva
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - António J Salgado
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
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D'avila LF, Dias VT, Milanesi LH, Roversi K, Trevizol F, Maurer LH, Emanuelli T, Burger ME, Segat HJ. Interesterified fat consumption since gestation decreases striatal dopaminergic targets levels and gdnf impairing locomotion of adult offspring. Toxicol Lett 2020; 339:23-31. [PMID: 33359558 DOI: 10.1016/j.toxlet.2020.12.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 11/29/2020] [Accepted: 12/19/2020] [Indexed: 12/25/2022]
Abstract
Interesterified fat (IF) currently substitutes the hydrogenated vegetable fat (HVF) in processed foods. However, the IF consumption impact on the central nervous system (CNS) has been poorly studied. The current study investigated connections between IF chronic consumption and locomotor impairments in early life period and adulthood of rats and access brain molecular targets related to behavior changes in adulthood offspring. During pregnancy and lactation, female rats received soybean oil (SO) or IF and their male pups received the same maternal supplementation from weaning until adulthood. Pups' motor ability and locomotor activity in adulthood were evaluated. In the adult offspring striatum, dopaminergic targets, glial cell line-derived neurotrophic factor (GDFN) and lipid profile were quantified. Pups from IF supplementation group presented impaired learning concerning complex motor skill and sensorimotor behavior. The same animals showed decreased locomotion in adulthood. Moreover, IF group showed decreased immunoreactivity of all dopaminergic targets evaluated and GDNF, along with important changes in FA composition in striatum. This study shows that the brain modifications induce by IF consumption resulted in impaired motor control in pups and decreased locomotion in adult animals. Other studies about health damages induced by IF consumption may have a contribution from our current outcomes.
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Affiliation(s)
- Lívia Ferraz D'avila
- Programa de Pós-graduação em Farmacologia, Universidade Federal de Santa Maria (UFSM), RS, Brazil.
| | - Verônica Tironi Dias
- Programa de Pós-graduação em Farmacologia, Universidade Federal de Santa Maria (UFSM), RS, Brazil.
| | - Laura Hautrive Milanesi
- Programa de Pós-graduação em Farmacologia, Universidade Federal de Santa Maria (UFSM), RS, Brazil.
| | - Karine Roversi
- Programa de Pós-graduação em Farmacologia, Universidade Federal de Santa Maria (UFSM), RS, Brazil.
| | - Fabíola Trevizol
- Programa de Pós-graduação em Farmacologia, Universidade Federal de Santa Maria (UFSM), RS, Brazil.
| | - Luana Haselein Maurer
- Programa de Pós-graduação em Ciência e Tecnologia dos Alimentos, Universidade Federal de Santa Maria (UFSM), RS, Brazil.
| | - Tatiana Emanuelli
- Programa de Pós-graduação em Ciência e Tecnologia dos Alimentos, Universidade Federal de Santa Maria (UFSM), RS, Brazil.
| | - Marilise Escobar Burger
- Programa de Pós-graduação em Farmacologia, Universidade Federal de Santa Maria (UFSM), RS, Brazil; Departamento de Fisiologia e Farmacologia, Universidade Federal de Santa Maria (UFSM), RS, Brazil.
| | - Hecson Jesser Segat
- Departamento de Patologia, Universidade Federal de Santa Maria (UFSM), RS, Brazil.
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Tian ZR, Yao M, Zhou LY, Song YJ, Ye J, Wang YJ, Cui XJ. Effect of docosahexaenoic acid on the recovery of motor function in rats with spinal cord injury: a meta-analysis. Neural Regen Res 2020; 15:537-547. [PMID: 31571666 PMCID: PMC6921345 DOI: 10.4103/1673-5374.266065] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Objective: Studies have shown that docosahexaenoic acid (DHA) has a beneficial effect in the treatment of spinal cord injury. A meta-analysis was used to study the effect of DHA on the neurological recovery in the rat spinal cord injury model, and the relationship between the recovery of motor function after spinal cord injury and the time and method of administration and the dose of DHA. Data source: Published studies on the effect of DHA on spinal cord injury animal models from seven databases were searched from their inception to January 2019, including PubMed, MEDLINE, EMBASE, the China National Knowledge Infrastructure, Wanfang, VIP, and SinoMed databases. The search terms included “spinal cord injury” “docosahexaenoic acid”, and “rats”. Data selection: Studies that evaluated the influence of DHA in rat models of spinal cord injury for locomotor functional recovery were included. The intervention group included any form of DHA treatment and the control group included treatment with normal saline, vehicle solution or no treatment. The Systematic Review Centre for Laboratory animal Experimentation’s risk of bias assessment tool was used for the quality assessment of the included studies. Literature inclusion, quality evaluation and data extraction were performed by two researchers. Meta-analysis was then conducted on all studies that met the inclusion criteria. Statistical analysis was performed on the data using RevMan 5.1.2. software. Outcome measures: The primary outcome measure was the score on the Basso, Beattie, and Bresnahan scale. Secondary outcome measures were the sloping plate test, balance beam test, stair test and grid exploration test. Results: A total of 12 related studies were included, 3 of which were of higher quality and the remaining 9 were of lower quality. The highest mean Basso, Beattie, and Bresnahan scale score occurred at 42 days after DHA treatment in spinal cord injury rats. At 21 days after treatment, the mean difference in Basso, Beattie, Bresnahan scores between the DHA group and the control group was the most significant (pooled MD = 4.14; 95% CI = 3.58–4.70; P < 0.00001). In the subgroup analysis, improvement in the Basso, Beattie, and Bresnahan scale score was more significant in rats administered DHA intravenously (pooled MD = 2.74; 95% CI = 1.41–4.07; P < 0.0001) and subcutaneously (pooled MD = 2.99; 95% CI = 2.29–3.69; P < 0.00001) than in the groups administered DHA orally (pooled MD = 3.04; 95% CI = –1.01 to 7.09; P = 0.14). Intravenous injection of DHA at 250 nmol/kg (pooled MD = 2.94; 95% CI = 2.47–3.41; P < 0.00001] and 1000 nmol/kg [pooled MD = 3.60; 95% CI = 2.66–4.54; P < 0.00001) significantly improved the Basso, Beattie, and Bresnahan scale score in rats and promoted the recovery of motor function. Conclusion: DHA can promote motor functional recovery after spinal cord injury in rats. The administration of DHA by intravenous or subcutaneous injection is more effective than oral administration of DHA. Intravenous injection of DHA at doses of 250 nmol/kg or 1000 nmol/kg is beneficial. Because of the small number and the low quality of the included studies, more high-quality research is needed in future to substantiate the results.
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Affiliation(s)
- Zi-Rui Tian
- Institute of Spine Disease, Longhua Hospital, Shanghai University of Traditional Chinese Medicine; Key Laboratory of Theory and Therapy of Muscles and Bones, Ministry of Education (Shanghai University of Traditional Chinese Medicine); Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Min Yao
- Institute of Spine Disease, Longhua Hospital, Shanghai University of Traditional Chinese Medicine; Key Laboratory of Theory and Therapy of Muscles and Bones, Ministry of Education (Shanghai University of Traditional Chinese Medicine), Shanghai, China
| | - Long-Yun Zhou
- Key Laboratory of Theory and Therapy of Muscles and Bones, Ministry of Education (Shanghai University of Traditional Chinese Medicine); Shanghai University of Traditional Chinese Medicine; Rehabilitation Medicine College, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yong-Jia Song
- Institute of Spine Disease, Longhua Hospital, Shanghai University of Traditional Chinese Medicine; Key Laboratory of Theory and Therapy of Muscles and Bones, Ministry of Education (Shanghai University of Traditional Chinese Medicine); Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Jie Ye
- Department of Orthopedics and Traumatology, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yong-Jun Wang
- Institute of Spine Disease, Longhua Hospital, Shanghai University of Traditional Chinese Medicine; Key Laboratory of Theory and Therapy of Muscles and Bones, Ministry of Education (Shanghai University of Traditional Chinese Medicine); Shanghai University of Traditional Chinese Medicine; Rehabilitation Medicine College, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Xue-Jun Cui
- Institute of Spine Disease, Longhua Hospital, Shanghai University of Traditional Chinese Medicine; Key Laboratory of Theory and Therapy of Muscles and Bones, Ministry of Education (Shanghai University of Traditional Chinese Medicine), Shanghai, China
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Manzhulo IV, Tyrtyshnaia AA, Manzhulo OS, Starinets AA, Kasyanov SP, Dyuizen IV. Neuroprotective Activity of Docosahexaenoic Acid in the Central and Peripheral Nervous System after Chronic Constriction Injury of the Sciatic Nerve. NEUROCHEM J+ 2020. [DOI: 10.1134/s1819712420010158] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Yu Y, Fang H, Qiu Z, Xia Z, Zhou B. DHA Attenuates Hypoxia/Reoxygenation Injury by Activating SSeCKS in Human Cerebrovascular Pericytes. Neurochem Res 2019; 45:310-321. [PMID: 31776970 PMCID: PMC6985071 DOI: 10.1007/s11064-019-02915-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2019] [Revised: 11/07/2019] [Accepted: 11/18/2019] [Indexed: 12/11/2022]
Abstract
Docosahexaenoic acid (DHA) can alleviate cerebral ischemia/reperfusion injury by reducing blood–brain barrier permeability and maintaining its integrity, accompanied by an increased Ang-1/Ang-2 ratio; however, the underlying mechanisms of these effects remain unclear. Src-suppressed C kinase substrates (SSeCKS), a substrate of protein kinase C, plays an important role in maintaining cell junctions and cell morphology and regulating cell permeability. However, whether DHA can increase SSeCKS expression and then mediate the Ang-1/Ang-2 ratio still needs to be studied. Human cerebrovascular pericytes (HBVPs) cultured in vitro were divided into groups, treated with or without DHA along with SSeCKS siRNA to knockdown SSeCKS expression, and then subjected to 24 h of hypoxia followed by 6 h of reoxygenation. Cell viability; lactate dehydrogenase (LDH) release; and Ang-1, Ang-2 and VEGF activity were detected by using ELISA kits. The apoptosis rate was assessed by TUNEL flow cytometry. Expression of the SSeCKS, Ang-1, Ang-2 and VEGF proteins was evaluated by western blotting. Pretreatment with 10 μM or 40 μM DHA efficiently attenuated hypoxia/reoxygenation (H/R) injury by activating SSeCKS to increase the Ang-1/Ang-2 ratio and downregulate VEGF expression in HBVPs, as evidenced by decreased LDH release and apoptotic rates and increased HBVPs viability. Meanwhile, after we used SSeCKS siRNA to knock down SSeCKS protein expression, the protective effect of DHA on HBVPs following H/R injury was reversed. In conclusion, DHA can activate SSeCKS to increase the Ang-1/Ang-2 ratio and downregulate VEGF expression in HBVPs, thus reducing H/R injury.
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Affiliation(s)
- Yanli Yu
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, China
| | - Haibin Fang
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, China
| | - Zhen Qiu
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, China
| | - Zhongyuan Xia
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, China
| | - Bin Zhou
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, China.
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Dissecting cell diversity and connectivity in skeletal muscle for myogenesis. Cell Death Dis 2019; 10:427. [PMID: 31160550 PMCID: PMC6546706 DOI: 10.1038/s41419-019-1647-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2018] [Revised: 03/25/2019] [Accepted: 05/06/2019] [Indexed: 12/28/2022]
Abstract
Characterized by their slow adhering property, skeletal muscle myogenic progenitor cells (MPCs) have been widely utilized in skeletal muscle tissue engineering for muscle regeneration, but with limited efficacy. Skeletal muscle regeneration is regulated by various cell types, including a large number of rapidly adhering cells (RACs) where their functions and mechanisms are still unclear. In this study, we explored the function of RACs by co-culturing them with MPCs in a biomimetic skeletal muscle organoid system. Results showed that RACs promoted the myogenic potential of MPCs in the organoid. Single-cell RNA-Seq was also performed, classifying RACs into 7 cell subtypes, including one newly described cell subtype: teno-muscular cells (TMCs). Connectivity map of RACs and MPCs subpopulations revealed potential growth factors (VEGFA and HBEGF) and extracellular matrix (ECM) proteins involvement in the promotion of myogenesis of MPCs during muscle organoid formation. Finally, trans-well experiments and small molecular inhibitors blocking experiments confirmed the role of RACs in the promotion of myogenic differentiation of MPCs. The RACs reported here revealed complex cell diversity and connectivity with MPCs in the biomimetic skeletal muscle organoid system, which not only offers an attractive alternative for disease modeling and in vitro drug screening but also provides clues for in vivo muscle regeneration.
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Manzhulo O, Tyrtyshnaia A, Kipryushina Y, Dyuizen I, Manzhulo I. Docosahexaenoic acid induces changes in microglia/macrophage polarization after spinal cord injury in rats. Acta Histochem 2018; 120:741-747. [PMID: 30170694 DOI: 10.1016/j.acthis.2018.08.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Revised: 08/14/2018] [Accepted: 08/22/2018] [Indexed: 02/05/2023]
Abstract
Docosahexaenoic acid (DHA, 22:6 (n-3)) leads to recovery of locomotor functions observed of spinal cord injury (SCI) in rats. In present study, we characterized the expression of iba-1, CD86, CD163 in microglia/macrophages, to assess activation state and M1 (pro-inflammatory)/M2 (anti-inflammatory) phenotypes respectively, in the rostral, central and caudal segment of the spinal cord on 7 and 35 days after SCI. We found that DHA treatment leads to: (1) an increased activation and proliferation of microglial cells; (2) an alteration in the dynamics between M1 and M2 microglia/macrophages phenotypes (3) and increased production of an antioxidant enzymes. Overall, our data demonstrates that DHA has a complex effect in post-traumatic process within the central nervous system, and supports the therapeutic potential of DHA-based drugs.
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Affiliation(s)
- Olga Manzhulo
- National Scientific Center of Marine Biology, Far Eastern Branch, Russian Academy of Sciences, Vladivostok, 690041, Russia
| | - Anna Tyrtyshnaia
- National Scientific Center of Marine Biology, Far Eastern Branch, Russian Academy of Sciences, Vladivostok, 690041, Russia; School of Biomedicine, Far Eastern Federal University, Vladivostok, 690950, Russia
| | - Yulia Kipryushina
- National Scientific Center of Marine Biology, Far Eastern Branch, Russian Academy of Sciences, Vladivostok, 690041, Russia
| | - Inessa Dyuizen
- National Scientific Center of Marine Biology, Far Eastern Branch, Russian Academy of Sciences, Vladivostok, 690041, Russia
| | - Igor Manzhulo
- National Scientific Center of Marine Biology, Far Eastern Branch, Russian Academy of Sciences, Vladivostok, 690041, Russia; School of Biomedicine, Far Eastern Federal University, Vladivostok, 690950, Russia.
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