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Pontes PB, Toscano AE, Lacerda DC, da Silva Araújo ER, Costa PCTD, Alves SM, Brito Alves JLD, Manhães-de-Castro R. Effectiveness of Polyphenols on Perinatal Brain Damage: A Systematic Review of Preclinical Studies. Foods 2023; 12:2278. [PMID: 37372488 DOI: 10.3390/foods12122278] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Revised: 04/06/2023] [Accepted: 05/24/2023] [Indexed: 06/29/2023] Open
Abstract
Polyphenol supplementation during early life has been associated with a reduction of oxidative stress and neuroinflammation in diseases caused by oxygen deprivation, including cerebral palsy, hydrocephaly, blindness, and deafness. Evidence has shown that perinatal polyphenols supplementation may alleviate brain injury in embryonic, fetal, neonatal, and offspring subjects, highlighting its role in modulating adaptative responses involving phenotypical plasticity. Therefore, it is reasonable to infer that the administration of polyphenols during the early life period may be considered a potential intervention to modulate the inflammatory and oxidative stress that cause impairments in locomotion, cognitive, and behavioral functions throughout life. The beneficial effects of polyphenols are linked with several mechanisms, including epigenetic alterations, involving the AMP-activated protein kinase (AMPK), nuclear factor kappa B (NF-κB), and phosphoinositide 3-kinase (PI3K) pathways. To highlight these new perspectives, the objective of this systematic review was to summarize the understanding emerging from preclinical studies about polyphenol supplementation, its capacity to minimize brain injury caused by hypoxia-ischemia in terms of morphological, inflammatory, and oxidative parameters and its repercussions for motor and behavioral functions.
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Affiliation(s)
- Paula Brielle Pontes
- Postgraduate Program of Neuropsychiatry and Behavioral Sciences, Federal University of Pernambuco, Recife 50670-901, Pernambuco, Brazil
- Studies in Nutrition and Phenotypic Plasticity Unit, Federal University of Pernambuco, Recife 50670-901, Pernambuco, Brazil
| | - Ana Elisa Toscano
- Studies in Nutrition and Phenotypic Plasticity Unit, Federal University of Pernambuco, Recife 50670-901, Pernambuco, Brazil
- Department of Nursing, CAV, Federal University of Pernambuco, Vitória de Santo Antão 55608-680, Pernambuco, Brazil
| | - Diego Cabral Lacerda
- Studies in Nutrition and Phenotypic Plasticity Unit, Federal University of Pernambuco, Recife 50670-901, Pernambuco, Brazil
- Department of Nursing, CAV, Federal University of Pernambuco, Vitória de Santo Antão 55608-680, Pernambuco, Brazil
| | - Eulália Rebeca da Silva Araújo
- Postgraduate Program of Neuropsychiatry and Behavioral Sciences, Federal University of Pernambuco, Recife 50670-901, Pernambuco, Brazil
- Studies in Nutrition and Phenotypic Plasticity Unit, Federal University of Pernambuco, Recife 50670-901, Pernambuco, Brazil
| | - Paulo César Trindade da Costa
- Department of Nutrition, Health Sciences Center, Federal University of Paraíba, João Pessoa 58051-900, Paraíba, Brazil
| | - Swane Miranda Alves
- Postgraduate Program of Neuropsychiatry and Behavioral Sciences, Federal University of Pernambuco, Recife 50670-901, Pernambuco, Brazil
- Studies in Nutrition and Phenotypic Plasticity Unit, Federal University of Pernambuco, Recife 50670-901, Pernambuco, Brazil
| | - José Luiz de Brito Alves
- Department of Nutrition, Health Sciences Center, Federal University of Paraíba, João Pessoa 58051-900, Paraíba, Brazil
| | - Raul Manhães-de-Castro
- Postgraduate Program of Neuropsychiatry and Behavioral Sciences, Federal University of Pernambuco, Recife 50670-901, Pernambuco, Brazil
- Studies in Nutrition and Phenotypic Plasticity Unit, Federal University of Pernambuco, Recife 50670-901, Pernambuco, Brazil
- Department of Nutrition, Federal University of Pernambuco, Recife 50670-901, Pernambuco, Brazil
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Dong X, Nao J. Relationship between the therapeutic potential of various plant-derived bioactive compounds and their related microRNAs in neurological disorders. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2023; 108:154501. [PMID: 36368284 DOI: 10.1016/j.phymed.2022.154501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 09/26/2022] [Accepted: 10/02/2022] [Indexed: 06/16/2023]
Abstract
BACKGROUND Neurological disorders, such as ischemic stroke, spinal cord injury, neurodegenerative diseases, and glioblastoma often lead to long-term disability and death. MicroRNAs (miRNAs) are small single-stranded non-coding RNAs of approximately 22 nucleotides, known to participate in both normal and pathological development, making them ideal therapeutic targets for clinical intervention. Several recent studies have suggested that plant-derived bioactive compounds (PDBCs) can have anti-atherosclerosis, antioxidant, and anti-inflammatory effects by regulating miRNAs. Thus, miRNAs are novel targets for the action of PDBCs. PURPOSE The aim of this review was to evaluate the current status of PDBCs targeted miRNAs by dissecting their development status through a literature review. METHODS A manual and electronic search was performed for English articles available from inception up to June 2022 reporting PDBCs and their regulating relationship with miRNAs for the therapeutic potential of neurological disorders. Information was retrieved from scientific databases including PubMed, ScienceDirect, Web of Science, Google Scholar and Chemical Abstracts Services. Keywords used for the search engines were "miRNAs" AND "Plant-derived bioactive compounds" in conjunction with "(native weeds OR alien invasive)" AND "traditional herbal medicine". RESULTS A total of 37 articles were retrieved on PDBCs and their related miRNAs in neurological disorders. These PDBCs from traditional herbal medicine may play a therapeutic role in neurological disorders in a variety of mechanisms by regulating the corresponding miRNAs. These mechanisms mainly include inhibiting oxidative stress, anti-neuroinflammation, anti-autophagy, and anti-apoptosis. PDBC are a group of chemically distinct compounds derived from medicinal plants, some of which have therapeutic effects on neurological disorders. CONCLUSION The emergence of miRNAs as pathological regulatory factors provides a new direction for the study of bioactive compounds in Traditional Chinese medicine and the elucidating of their epigenetic effects. Elucidating the regulatory relationship between bioactive compounds and miRNAs may help to identify new therapeutic targets and promoting the application of these compounds in precision medicine through their targeted molecular activity.
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Affiliation(s)
- Xiaoyu Dong
- Department of Neurology, Shengjing Hospital of China Medical University, 36 Sanhao Street, Heping District, Shenyang, Liaoning 110004, PR China
| | - Jianfei Nao
- Department of Neurology, Shengjing Hospital of China Medical University, 36 Sanhao Street, Heping District, Shenyang, Liaoning 110004, PR China.
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Roumes H, Goudeneche P, Pellerin L, Bouzier-Sore AK. Resveratrol and Some of Its Derivatives as Promising Prophylactic Treatments for Neonatal Hypoxia-Ischemia. Nutrients 2022; 14:nu14183793. [PMID: 36145168 PMCID: PMC9501144 DOI: 10.3390/nu14183793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 09/08/2022] [Accepted: 09/09/2022] [Indexed: 11/16/2022] Open
Abstract
Due to the rate of occurrence of neonatal hypoxia-ischemia, its neuronal sequelae, and the lack of effective therapies, the development of new neuroprotective strategies is required. Polyphenols (including resveratrol) are molecules whose anti-apoptotic, anti-inflammatory, and anti-oxidative properties could be effective against the damage induced by neonatal hypoxia-ischemia. In this review article, very recent data concerning the neuroprotective role of polyphenols and the mechanisms at play are detailed, including a boost in brain energy metabolism. The results obtained with innovative approaches, such as maternal supplementation at nutritional doses, suggest that polyphenols could be a promising prophylactic treatment for neonatal hypoxia-ischemia.
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Affiliation(s)
- Hélène Roumes
- Centre de Résonance Magnétique des Sysytèmes Biologiques (CRMSB), UMR 5536, University of Bordeaux and CNRS, F-33000 Bordeaux, France
- Correspondence:
| | - Pierre Goudeneche
- Centre de Résonance Magnétique des Sysytèmes Biologiques (CRMSB), UMR 5536, University of Bordeaux and CNRS, F-33000 Bordeaux, France
| | - Luc Pellerin
- Ischémie Reperfusion, Métabolisme et Inflammation Stérile en Transplantation (IRMETIST), Inserm U1313, University of Poitiers and CHU Poitiers, F-86021 Poitiers, France
| | - Anne-Karine Bouzier-Sore
- Centre de Résonance Magnétique des Sysytèmes Biologiques (CRMSB), UMR 5536, University of Bordeaux and CNRS, F-33000 Bordeaux, France
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Ren W, Zhao F, Han Y, Liu Z, Zhai J, Jia K. Muscone improves hypoxia/reoxygenation (H/R)-induced neuronal injury by blocking HMGB1/TLR4/NF-κB pathway via modulating microRNA-142. PeerJ 2022; 10:e13523. [PMID: 35860039 PMCID: PMC9290999 DOI: 10.7717/peerj.13523] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Accepted: 05/10/2022] [Indexed: 01/25/2023] Open
Abstract
Previous reports have indicated that natural muscone has neuroprotective effects against cerebral hypoxia injury; however, little is known in regards to its pharmacological mechanism. In this study, we tried to evaluate the neuroprotective effects and mechanisms of muscone against cerebral hypoxia injury using an in vitro model. The cerebral hypoxia injury cell model was produced by hypoxia/reoxygenation (H/R). The cell viability and apoptosis were measured using the cell counting Kit-8 and the Annexin V-FITC/PI Apoptosis Detection kit, respectively. To screen microRNAs regulated by muscone, we analyzed the gene expression datasets of GSE84216 retrieved from gene expression omnibus (GEO). Here, it was demonstrated that muscone treatment significantly alleviated the cell apoptosis, oxidative stress and inflammation in H/R-exposed neurons. Subsequently, through analyzing GSE84216 from the GEO database, miR-142-5p was markedly upregulated by treatment of muscone in this cell model of cerebral hypoxia injury. Further experiments revealed that downregulation of miR-142-5p eliminated the neuroprotective effects of muscone against H/R induced neuronal injury. Additionally, high mobility group box 1 (HMGB1), an important inflammatory factor, was identified as a direct target of miR-142-5p in neurons. Meanwhile, we further demonstrated that muscone could reduce the expression of HMGB1 by upregulating miR-142-5p expression, which subsequently resulted in the inactivation of TLR4/NF-κB pathway, finally leading to the improvement of cell injury in H/R-exposed neurons. Overall, we demonstrate for the first time that muscone treatment alleviates cerebral hypoxia injury in in vitro experiments through blocking activation of the TLR4/NF-κB signaling pathway by targeting HMGB1, suggesting that muscone may serve as a potential therapeutic drug for treating cerebral hypoxia injury.
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He B, Yang F, Ning Y, Li Y. Sevoflurane alleviates hepatic ischaemia/reperfusion injury by up-regulating miR-96 and down-regulating FOXO4. J Cell Mol Med 2021; 25:5899-5911. [PMID: 34061461 PMCID: PMC8256341 DOI: 10.1111/jcmm.16063] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 09/27/2020] [Accepted: 10/05/2020] [Indexed: 01/06/2023] Open
Abstract
Hepatic ischaemia/reperfusion (I/R) injury represents an event characterized by anoxic cell death and an inflammatory response, that can limit the treatment efficacy of liver surgery. Ischaemic preconditioning agents such as sevoflurane (Sevo) have been highlighted to play protective roles in hepatic I/R injury. The current study aimed to investigate the molecular mechanism underlying the effects associated with Sevo in hepatic I/R injury. Initially, mouse hepatic I/R injury models were established via occlusion of the hepatic portal vein and subsequent reperfusion. The expression of forkhead box protein O4 (FOXO4) was detected using reverse transcription quantitative polymerase chain reaction and Western blot analysis from clinical liver tissue samples obtained from patients who had previously undergone liver transplantation, mouse I/R models and oxygen-deprived hepatocytes. The morphology of the liver tissues was analysed using haematoxylin-eosin (HE) staining, with apoptosis detected via TUNEL staining. Immunohistochemistry methods were employed to identify the FOXO4-positive cells. Mice with knocked out FOXO4 (FOXO4-KO mice) were subjected to I/R. In this study, we found FOXO4 was highly expressed following hepatic I/R injury. After treatment with Sevo, I/R modelled mice exhibited an alleviated degree of liver injury, fewer apoptotic cells and FOXO4-positive cells. FOXO4 was a target gene of miR-96. Knockdown of FOXO4 could alleviate hepatic I/R injury and decrease cell apoptosis. Taken together, the key observations of our study suggest that Sevo alleviates hepatic I/R injury by means of promoting the expression of miR-96 while inhibiting FOXO4 expression. This study highlights the molecular mechanism mediated by Sevo in hepatic I/R injury.
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Affiliation(s)
- Binghua He
- Jinan UniversityGuangzhouChina
- Department of Anesthesiologythe Central Hospital of ShaoyangShaoyangChina
| | - Fan Yang
- Department of Anesthesiologythe Central Hospital of ShaoyangShaoyangChina
| | - Yingxia Ning
- Department of Gynecology and ObstetricsThe First Affiliated Hospital of Guangzhou Medical UniversityGuangzhouChina
| | - Yalan Li
- Department of Anesthesiologythe First Affiliated Hospital of Jinan UniversityGuangzhouChina
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Nutraceuticals in the Prevention of Neonatal Hypoxia-Ischemia: A Comprehensive Review of their Neuroprotective Properties, Mechanisms of Action and Future Directions. Int J Mol Sci 2021; 22:ijms22052524. [PMID: 33802413 PMCID: PMC7959318 DOI: 10.3390/ijms22052524] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 02/25/2021] [Accepted: 02/26/2021] [Indexed: 12/22/2022] Open
Abstract
Neonatal hypoxia–ischemia (HI) is a brain injury caused by oxygen deprivation to the brain due to birth asphyxia or reduced cerebral blood perfusion, and it often leads to lifelong limiting sequelae such as cerebral palsy, seizures, or mental retardation. HI remains one of the leading causes of neonatal mortality and morbidity worldwide, and current therapies are limited. Hypothermia has been successful in reducing mortality and some disabilities, but it is only applied to a subset of newborns that meet strict inclusion criteria. Given the unpredictable nature of the obstetric complications that contribute to neonatal HI, prophylactic treatments that prevent, rather than rescue, HI brain injury are emerging as a therapeutic alternative. Nutraceuticals are natural compounds present in the diet or used as dietary supplements that have antioxidant, anti-inflammatory, or antiapoptotic properties. This review summarizes the preclinical in vivo studies, mostly conducted on rodent models, that have investigated the neuroprotective properties of nutraceuticals in preventing and reducing HI-induced brain damage and cognitive impairments. The natural products reviewed include polyphenols, omega-3 fatty acids, vitamins, plant-derived compounds (tanshinones, sulforaphane, and capsaicin), and endogenous compounds (melatonin, carnitine, creatine, and lactate). These nutraceuticals were administered before the damage occurred, either to the mothers as a dietary supplement during pregnancy and/or lactation or to the pups prior to HI induction. To date, very few of these nutritional interventions have been investigated in humans, but we refer to those that have been successful in reducing ischemic stroke in adults. Overall, there is a robust body of preclinical evidence that supports the neuroprotective properties of nutraceuticals, and these may represent a safe and inexpensive nutritional strategy for the prevention of neonatal HI encephalopathy.
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Amiri A, Mahjoubin-Tehran M, Asemi Z, Shafiee A, Hajighadimi S, Moradizarmehri S, Mirzaei HR, Mirzaei H. Role of Resveratrol in Modulating microRNAs in Human Diseases: From Cancer to Inflammatory Disorder. Curr Med Chem 2021; 28:360-376. [PMID: 31830882 DOI: 10.2174/0929867326666191212102407] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2019] [Revised: 10/18/2019] [Accepted: 10/18/2019] [Indexed: 12/09/2022]
Abstract
Cancer and inflammatory disorders are two important public health issues worldwide with significant socio.economic impacts. Despite several efforts, the current therapeutic platforms are associated with severe limitations. Therefore, developing new therapeutic strategies for the treatment of these diseases is a top priority. Besides current therapies, the utilization of natural compounds has emerged as a new horizon for the treatment of cancer and inflammatory disorders as well. Such natural compounds could be used either alone or in combination with the standard cancer therapeutic modalities such as chemotherapy, radiotherapy, and immunotherapy. Resveratrol is a polyphenolic compound that is found in grapes as well as other foods. It has been found that this medicinal agent displays a wide pharmacological spectrum, including anti-cancer, anti-inflammatory, anti-microbial, and antioxidant activities. Recently, clinical and pre-clinical studies have highlighted the anti-cancer and anti-inflammatory effects of resveratrol. Increasing evidence revealed that resveratrol exerts its therapeutic effects by targeting various cellular and molecular mechanisms. Among cellular and molecular targets that are modulated by resveratrol, microRNAs (miRNAs) have appeared as key targets. MiRNAs are short non-coding RNAs that act as epigenetic regulators. These molecules are involved in many processes that are involved in the initiation and progression of cancer and inflammatory disorders. Herein, we summarized various miRNAs that are directly/indirectly influenced by resveratrol in cancer and inflammatory disorders.
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Affiliation(s)
- Atefeh Amiri
- Department of Medical Biotechnology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Maryam Mahjoubin-Tehran
- Department of Medical Biotechnology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Zatollah Asemi
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran
| | - Alimohammad Shafiee
- Division of General Internal Medicine, Toronto General Hospital, Toronto, Canada
| | - Sarah Hajighadimi
- Division of General Internal Medicine, Toronto General Hospital, Toronto, Canada
| | - Sanaz Moradizarmehri
- Division of General Internal Medicine, Toronto General Hospital, Toronto, Canada
| | - Hamid Reza Mirzaei
- Department of Medical Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Canada
| | - Hamed Mirzaei
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran
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8
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Dumont U, Sanchez S, Repond C, Beauvieux MC, Chateil JF, Pellerin L, Bouzier-Sore AK, Roumes H. Neuroprotective Effect of Maternal Resveratrol Supplementation in a Rat Model of Neonatal Hypoxia-Ischemia. Front Neurosci 2021; 14:616824. [PMID: 33519368 PMCID: PMC7844160 DOI: 10.3389/fnins.2020.616824] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Accepted: 12/23/2020] [Indexed: 02/04/2023] Open
Abstract
Neonatal hypoxia-ischemia (nHI) is a major cause of death or subsequent disabilities in infants. Hypoxia-ischemia causes brain lesions, which are induced by a strong reduction in oxygen and nutrient supply. Hypothermia is the only validated beneficial intervention, but not all newborns respond to it and today no pharmacological treatment exists. Among possible therapeutic agents to test, trans-resveratrol is an interesting candidate as it has been reported to exhibit neuroprotective effects in some neurodegenerative diseases. This experimental study aimed to investigate a possible neuroprotection by resveratrol in rat nHI, when administered to the pregnant rat female, at a nutritional dose. Several groups of pregnant female rats were studied in which resveratrol was added to drinking water either during the last week of pregnancy, the first week of lactation, or both. Then, 7-day old pups underwent a hypoxic-ischemic event. Pups were followed longitudinally, using both MRI and behavioral testing. Finally, a last group was studied in which breastfeeding females were supplemented 1 week with resveratrol just after the hypoxic-ischemic event of the pups (to test the curative rather than the preventive effect). To decipher the molecular mechanisms of this neuroprotection, RT-qPCR and Western blots were also performed on pup brain samples. Data clearly indicated that when pregnant and/or breastfeeding females were supplemented with resveratrol, hypoxic-ischemic offspring brain lesions were significantly reduced. Moreover, maternal resveratrol supplementation allowed to reverse sensorimotor and cognitive deficits caused by the insult. The best recoveries were observed when resveratrol was administered during both gestation and lactation (2 weeks before the hypoxic-ischemic event in pups). Furthermore, neuroprotection was also observed in the curative group, but only at the latest stages examined. Our hypothesis is that resveratrol, in addition to the well-known neuroprotective benefits via the sirtuin’s pathway (antioxidant properties, inhibition of apoptosis), has an impact on brain metabolism, and more specifically on the astrocyte-neuron lactate shuttle (ANLS) as suggested by RT-qPCR and Western blot data, that contributes to the neuroprotective effects.
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Affiliation(s)
- Ursule Dumont
- CRMSB, UMR 5536, CNRS/University of Bordeaux, Bordeaux, France.,Département de Physiologie, University of Lausanne, Lausanne, Switzerland
| | | | - Cendrine Repond
- Département de Physiologie, University of Lausanne, Lausanne, Switzerland
| | - Marie-Christine Beauvieux
- CRMSB, UMR 5536, CNRS/University of Bordeaux, Bordeaux, France.,CHU de Bordeaux, Place Amélie Raba Léon, Bordeaux, France
| | - Jean-François Chateil
- CRMSB, UMR 5536, CNRS/University of Bordeaux, Bordeaux, France.,CHU de Bordeaux, Place Amélie Raba Léon, Bordeaux, France
| | - Luc Pellerin
- Département de Physiologie, University of Lausanne, Lausanne, Switzerland.,IRTOMIT, Inserm U1082, University of Poitiers, Poitiers, France
| | | | - Hélène Roumes
- CRMSB, UMR 5536, CNRS/University of Bordeaux, Bordeaux, France
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The role of diurnal fluctuations in excitatory amino acid carrier 1 levels in post-ischemic hippocampal Zn 2+ accumulation. Exp Neurol 2020; 336:113538. [PMID: 33253705 DOI: 10.1016/j.expneurol.2020.113538] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 11/04/2020] [Accepted: 11/22/2020] [Indexed: 02/06/2023]
Abstract
Accumulating evidence indicates time-of-day variations in ischemic neuronal injury. Under ischemic conditions, Zn2+ is massively released from hippocampal glutamatergic neurons, and intracellular Zn2+ accumulation results in neuron death. Notably, excitatory amino acid carrier 1 (EAAC1), known as a cysteine transporter, is involved in Zn2+ homeostasis, and its expressions exhibit a diurnal fluctuation. This study aimed to investigate whether time of day of an ischemic insult affects Zn2+ accumulation and neuronal injury and determine whether altered Zn2+ accumulation is modulated by EAAC1 diurnal fluctuation in the hippocampus in a mouse model of ischemic stroke. Mice subjected to transient global ischemia for 40 min at Zeitgeber time 18 (ZT18) (23:00) exhibited reduced Zn2+ accumulation and neuronal death in the hilar region of the hippocampus compared to those at ZT4 (09:00). The EAAC1 protein expression in the hippocampus was increased at ZT18 relative to ZT4. Intracerebroventricular injection of a non-selective excitatory amino acid transporter inhibitor, DL-threo-β-benzyloxyaspartate, or a selective EAAC1 inhibitor, L-aspartic acid β-hydroxamate, increased ischemia-induced Zn2+ accumulation and neuronal death in the hilus at ZT18. These findings suggest that ischemia-induced Zn2+ accumulation displays circadian fluctuations through diurnal variations in EAAC1 expressions and affects susceptibility to ischemic neuronal injury in the hippocampal hilar region.
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Le K, Chibaatar Daliv E, Wu S, Qian F, Ali AI, Yu D, Guo Y. SIRT1-regulated HMGB1 release is partially involved in TLR4 signal transduction: A possible anti-neuroinflammatory mechanism of resveratrol in neonatal hypoxic-ischemic brain injury. Int Immunopharmacol 2019; 75:105779. [PMID: 31362164 DOI: 10.1016/j.intimp.2019.105779] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Revised: 07/22/2019] [Accepted: 07/23/2019] [Indexed: 12/26/2022]
Abstract
Neonatal hypoxic-ischemic brain injury (HIBI) is a knotty disease that lacks appropriate treatment. Inflammation is an important contributor to brain damage, and microglia are responsible for eliciting early and pronounced inflammatory reactions in the immature brain after hypoxic-ischemic (HI) insult. Acetylated HMGB1 can be released from immune cells into the extracellular space, where it acts as a danger-associated molecular pattern molecule to activate TLR4 signalling-mediated inflammatory responses. Resveratrol has neuroprotective and anti-inflammatory effects against HIBI, but whether these effects involve the regulation of the TLR4 signalling pathway and whether HMGB1 participates in this process is still unclear. We investigated the anti-inflammatory effects of resveratrol in HIBI and the molecular mechanisms potentially involved in the effect. The in vivo and in vitro results indicated that the level of cytoplasmic HMGB1 in microglia increased after insult and that treating experimental animals or mouse BV2 microglial cells with resveratrol attenuated HI insult-induced neuroinflammation, which was characterized by improved behavioural defects, reduced microglial activation and TLR4/MyD88/NF-κB signalling, and attenuated primary neuronal damage; this was accompanied by the inhibition of HMGB1 nucleoplasmic transfer and extracellular release. EX527 pretreatment reversed these effects. In addition, co-immunoprecipitation confirmed that SIRT1 was directly involved in the HMGB1 acetylation process in BV2 cells after oxygen glucose deprivation. These data demonstrate that resveratrol plays a neuroprotective role in neonatal HIBI by activating SIRT1 to inhibit HMGB1/TLR4/MyD88/NF-κB signalling and subsequent neuroinflammatory responses.
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Affiliation(s)
- Kai Le
- Department of Neurology, Affiliated Zhongda Hospital of Southeast University, Nanjing, Jiangsu Province 210009, China; School of Medicine, Southeast University, Nanjing, Jiangsu Province 210009, China
| | - Enkhmurun Chibaatar Daliv
- Department of Neurology, Affiliated Zhongda Hospital of Southeast University, Nanjing, Jiangsu Province 210009, China; School of Medicine, Southeast University, Nanjing, Jiangsu Province 210009, China
| | - Shanshan Wu
- Department of Neurology, Affiliated Zhongda Hospital of Southeast University, Nanjing, Jiangsu Province 210009, China; School of Medicine, Southeast University, Nanjing, Jiangsu Province 210009, China
| | - Fangyuan Qian
- Department of Neurology, Affiliated Zhongda Hospital of Southeast University, Nanjing, Jiangsu Province 210009, China; School of Medicine, Southeast University, Nanjing, Jiangsu Province 210009, China
| | - Abdoulaye Idriss Ali
- Department of Neurology, Affiliated Zhongda Hospital of Southeast University, Nanjing, Jiangsu Province 210009, China; School of Medicine, Southeast University, Nanjing, Jiangsu Province 210009, China
| | - Dafan Yu
- Department of Neurology, Affiliated Zhongda Hospital of Southeast University, Nanjing, Jiangsu Province 210009, China; School of Medicine, Southeast University, Nanjing, Jiangsu Province 210009, China
| | - Yijing Guo
- Department of Neurology, Affiliated Zhongda Hospital of Southeast University, Nanjing, Jiangsu Province 210009, China.
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11
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Xue Y, Dongmei Li, Yige Zhang, Hang Gao, Li H. Angelica polysaccharide moderates hypoxia-evoked apoptosis and autophagy in rat neural stem cells by downregulation of BNIP3. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2019; 47:2492-2499. [PMID: 31208217 DOI: 10.1080/21691401.2019.1623228] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Yongzhen Xue
- Department of Children’s Healthcare, East Medical District of Linyi People’s Hospital, Linyi, China
| | - Dongmei Li
- Department of Internal Medicine, Shandong Provincial Coal Linyi Hot Springs Sanatorium Hospital, Linyi, China
| | - Yige Zhang
- Classe Six of Clinical Five-Year System, Medical Department of Qingdao University, Qingdao, China
| | - Hang Gao
- Class eight of Clinical Medicine, Basic Medical College of Jining Medical University, Jining, China
| | - Hui Li
- Department of Children’s Rehabilitation, Linyi Women’s and Children’s Hospital, Linyi, China
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12
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Wang T, Li B, Wang Z, Yuan X, Chen C, Zhang Y, Xia Z, Wang X, Yu M, Tao W, Zhang L, Wang X, Zhang Z, Guo X, Ning G, Feng S, Chen X. miR-155-5p Promotes Dorsal Root Ganglion Neuron Axonal Growth in an Inhibitory Microenvironment via the cAMP/PKA Pathway. Int J Biol Sci 2019; 15:1557-1570. [PMID: 31337984 PMCID: PMC6643145 DOI: 10.7150/ijbs.31904] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Accepted: 04/29/2019] [Indexed: 12/13/2022] Open
Abstract
Sensory dysfunction post spinal cord injury causes patients great distress. Sciatic nerve conditioning injury (SNCI) has been shown to restore sensory function after spinal cord dorsal column injury (SDCL); however, the underlying mechanism of this recovery remains unclear. We performed a microarray assay to determine the associated miRNAs that might regulate the process of SNCI promoting SDCL repair. In total, 13 miRNAs were identified according to our inclusion criteria, and RT-qPCR was used to verify the microarray results. Among the 13 miRNAs, the miR-155-5p levels were decreased at 9 h, 3 d, 7 d, 14 d, 28 d, 2 m and 3 m timepoints in the SDCL group, while the SNCI group had a smaller decrease. Thus, miR-155-5p was chosen for further study after a literature review and an analysis with the TargetScan online tool. Specifically, miR-155-5p targets PKI-α, and the expression pattern of PKI-α was opposite that of miR-155-5p in both the SDCL and SNCI groups. Interestingly, miR-155-5p could promote dorsal root ganglion (DRG) neuron axon growth via the cAMP/PKA pathway and in a TNF-α, IL-1β or MAG inhibitory microenvironment in vitro. Furthermore, miR-155-5p could regulate the cAMP/PKA pathway and promote sensory conduction function recovery post dorsal column injury as detected by NF-200 immunohistochemistry, somatosensory-evoked potentials, BBB scale and tape removal test. Collectively, our results demonstrated that miR-155-5p participates in the molecular mechanism by which SNCI promotes the repair of SDCL and that upregulated miR-155-5p can repair SDCL by enhancing DRG neuron axon growth via the cAMP/PKA pathway. These findings suggest a novel treatment target for spinal cord injury.
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Affiliation(s)
- Tianyi Wang
- Department of Orthopedics, The 981st Hospital of the Chinese People's Liberation Army, Chengde 067000, Hebei Province, P.R. China
| | - Bo Li
- Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin 300052, P.R. China
| | - Zhijie Wang
- Department of Pediatric Internal Medicine, Affiliated Hospital of Chengde Medical University, Chengde 067000, Hebei Province, P.R. China
| | - Xin Yuan
- Department of Spine Surgery, Beijing Luhe Hospital, Capital Medical University, Beijing 100000, P.R. China
| | - Chuanjie Chen
- Department of Orthopedics, Chengde Central Hospital, Chengde 067000, Hebei Province, P.R. China
| | - Yanjun Zhang
- Department of Spine Surgery, Beijing Luhe Hospital, Capital Medical University, Beijing 100000, P.R. China
| | - Ziwei Xia
- Department of Orthopedics, The Second Hospital of Tianjin Medical University, Tianjin 300211, P.R. China
| | - Xin Wang
- Chengde Medical University, Chengde 067000, Hebei Province, P.R. China
| | - Mei Yu
- Leukemia Center, Chinese Academy of Medical Sciences & Peking Union of Medical College, Institute of Hematology & Hospital of Blood Diseases, Tianjin 30020, P.R. China
| | - Wen Tao
- Chengde Medical University, Chengde 067000, Hebei Province, P.R. China
| | - Liang Zhang
- Department of Orthopedics, The Second Hospital of Tianjin Medical University, Tianjin 300211, P.R. China
| | - Xu Wang
- Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin 300052, P.R. China
| | - Zheng Zhang
- Department of Orthopedics, The 981st Hospital of the Chinese People's Liberation Army, Chengde 067000, Hebei Province, P.R. China
| | - Xiaoling Guo
- Department of Neurology, The 981st Hospital of the Chinese People's Liberation Army, Chengde 067000, Hebei Province, P.R. China
| | - Guangzhi Ning
- Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin 300052, P.R. China.,Tianjin Neurological Institute, Key Laboratory of Post-Neuroinjury Neuro-repair and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Tianjin 300052, P.R. China
| | - Shiqing Feng
- Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin 300052, P.R. China.,Tianjin Neurological Institute, Key Laboratory of Post-Neuroinjury Neuro-repair and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Tianjin 300052, P.R. China
| | - Xueming Chen
- Department of Spine Surgery, Beijing Luhe Hospital, Capital Medical University, Beijing 100000, P.R. China
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13
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Dong Y, Chen H, Gao J, Liu Y, Li J, Wang J. Bioactive Ingredients in Chinese Herbal Medicines That Target Non-coding RNAs: Promising New Choices for Disease Treatment. Front Pharmacol 2019; 10:515. [PMID: 31178721 PMCID: PMC6537929 DOI: 10.3389/fphar.2019.00515] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2019] [Accepted: 04/24/2019] [Indexed: 12/11/2022] Open
Abstract
Chinese herbal medicines (CHMs) are widely used in China and have long been a powerful method to treat diseases in Chinese people. Bioactive ingredients are the main components extracted from herbs that have therapeutic properties. Since artemisinin was discovered to inhibit malaria by Nobel laureate Youyou Tu, extracts from natural plants, particularly bioactive ingredients, have aroused increasing attention among medical researchers. The bioactive ingredients of some CHMs have been found to target various non-coding RNA molecules (ncRNAs), especially miRNAs, lncRNAs, and circRNAs, which have emerged as new treatment targets in numerous diseases. Here we review the evidence that, by regulating the expression of ncRNAs, these ingredients exert protective effects, including pro-apoptosis, anti-proliferation and anti-migration, anti-inflammation, anti-atherosclerosis, anti-infection, anti-senescence, and suppression of structural remodeling. Consequently, they have potential as treatment agents in diseases such as cancer, cardiovascular disease, nervous system disease, inflammatory bowel disease, asthma, infectious diseases, and senescence-related diseases. Although research has been relatively limited and inadequate to date, the promising choices and new alternatives offered by bioactive ingredients for the treatment of the above diseases warrant serious investigation.
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Affiliation(s)
- Yan Dong
- Department of Cardiology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Hengwen Chen
- Department of Cardiology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Jialiang Gao
- Department of Cardiology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Yongmei Liu
- Department of Cardiology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Jun Li
- Department of Cardiology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Jie Wang
- Department of Cardiology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
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