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Karati D, Mukherjee S, Roy S. A Promising Drug Candidate as Potent Therapeutic Approach for Neuroinflammation and Its In Silico Justification of Chalcone Congeners: a Comprehensive Review. Mol Neurobiol 2024; 61:1873-1891. [PMID: 37801205 DOI: 10.1007/s12035-023-03632-0] [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: 06/13/2023] [Accepted: 08/31/2023] [Indexed: 10/07/2023]
Abstract
Multiple genetic, environmental, and immunological variables cause neuropsychiatric disorders (NPDs). The induced inflammatory immune response is also connected to the severity and treatment outcomes of various NPDs. These reactions also significantly impact numerous brain functions such as GABAergic signaling and neurotransmitter synthesis through inflammatory cytokines and chemokines. Chalcones (1,3-diaryl-2-propen-1-ones) and their heterocyclic counterparts are flavonoids with various biological characteristics including anti-inflammatory activity. Several pure chalcones have been clinically authorized or studied in humans. Chalcones are favored for their diagnostic and therapeutic efficacy in neuroinflammation due to their tiny molecular size, easy manufacturing, and flexibility for changes to adjust lipophilicity ideal for BBB penetrability. These compounds reached an acceptable plasma concentration and were well-tolerated in clinical testing. As a result, they are attracting increasing attention from scientists. However, chalcones' therapeutic potential remains largely untapped. This paper is aimed at highlighting the causes of neuroinflammation, more potent chalcone congeners, their mechanisms of action, and relevant structure-activity relationships.
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Affiliation(s)
- Dipanjan Karati
- Department of Pharmaceutical Technology, School of Pharmacy, Techno India University, Kolkata, West Bengal, 700091, India
| | - Swarupananda Mukherjee
- Department of Pharmaceutical Technology, NSHM Knowledge Campus, Kolkata, 124 B.L. Saha Road, Kolkata, West Bengal, 700053, India
| | - Souvik Roy
- Department of Pharmaceutical Technology, NSHM Knowledge Campus, Kolkata, 124 B.L. Saha Road, Kolkata, West Bengal, 700053, India.
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Chen Z, Ding W, Yang X, Lu T, Liu Y. Isoliquiritigenin, a potential therapeutic agent for treatment of inflammation-associated diseases. JOURNAL OF ETHNOPHARMACOLOGY 2024; 318:117059. [PMID: 37604329 DOI: 10.1016/j.jep.2023.117059] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 08/12/2023] [Accepted: 08/16/2023] [Indexed: 08/23/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Licorice is a medicinal herb with a 2000-year history of applications in traditional Chinese medicine. Isoliquiritigenin (ISL) is a bioactive chalcone compound isolated from licorice. It has attracted increasing attention in recent years due to its excellent anti-inflammatory activity. AIM OF THE STUDY This study is to provide a comprehensive summary of the anti-inflammatory activity of ISL and the underlying molecular mechanisms, and discuss new insights for its potential clinical applications as an anti-inflammation agent. MATERIALS AND METHODS We examined literatures published in the past twenty years from PubMed, Research Gate, Web of Science, Google Scholar, and SciFinder, with single or combined key words of "isoliquiritigenin", "inflammation", and "anti-inflammatory". RESULTS ISL elicits its anti-inflammatory activity by mediating various cellular processes. It inhibits the upstream of the nuclear factor kappa B (NF-κB) pathway and activates the nuclear factor erythroid related factor 2 (Nrf2) pathway. In addition, it suppresses the NOD-like receptor protein 3 (NLRP3) pathway and restrains the mitogen-activated protein kinase (MAPK) pathway. CONCLUSIONS Current studies indicate a great therapeutical potential of ISL as a drug candidate for treatment of inflammation-associated diseases. However, the pharmacokinetics, biosafety, and bioavailability of ISL remain to be further investigated.
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Affiliation(s)
- Ziyi Chen
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing, China
| | - Wenwen Ding
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing, China
| | - Xiaoxue Yang
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing, China
| | - Tiangong Lu
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing, China.
| | - Ying Liu
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing, China.
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Rowhanirad S, Taherianfard M. The neuroprotective effects of Chalcones from Ashitaba on cuprizone-induced demyelination via modulation of brain-derived neurotrophic factor and tumor necrosis factor α. Brain Behav 2023; 13:e3144. [PMID: 37403256 PMCID: PMC10498084 DOI: 10.1002/brb3.3144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 06/04/2023] [Accepted: 06/21/2023] [Indexed: 07/06/2023] Open
Abstract
INTRODUCTION Multiple sclerosis (MS) is the most common demyelinating disease of the central nervous system. However, the limitations of available therapeutic strategies are frustrating, both in terms of their low efficacy and multiple side effects. Previous studies showed that natural compounds such as Chalcones possess neuroprotective effects on neurodegenerative disorders. However, few studies have so far been published on the potential effects of Chalcones on treating demyelinating disease. The present study was designed to investigate the effects of Chalcones from Ashitaba (ChA) on cuprizone-induced noxious changes in the C57BL6 mice model of MS. METHODS The mice received normal diets (Control group: CNT), or Cuprizone-supplemented diets either without ChA (Cuprizone group: CPZ) or with low or high (300, 600 mg/kg/day) doses of ChA (ChA-treated groups: CPZ+ChA300/600). Brain-derived neurotrophic factor (BDNF) and tumor necrosis factor alpha (TNFα) levels, demyelination scores in the corpus callosum (CC), and cognitive impairment were evaluated using the enzyme-linked immunosorbent assay, histological, and Y-maze tests, respectively. RESULTS The findings showed that ChA Co-treatment significantly reduced the extent of demyelination in the CC and the serum and brain levels of TNFα in the ChA-treated groups compared to the CPZ group. Besides, treatment with a higher dose of ChA significantly improved the behavioral responses and BDNF levels in the serum and brain of the CPZ+ChA600 group when compared with the CPZ group. CONCLUSION The present study provided evidence for the neuroprotective effects of ChA on cuprizone-induced demyelination and behavioral dysfunction in C57BL/6 mice, possibly by modulating TNFα secretion and BDNF expression.
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Affiliation(s)
- Soodeh Rowhanirad
- Division of Physiology, Department of Basic Science, School of Veterinary MedicineShiraz UniversityShirazIran
| | - Mahnaz Taherianfard
- Division of Physiology, Department of Basic Science, School of Veterinary MedicineShiraz UniversityShirazIran
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Sinha S, Medhi B, Radotra BD, Batovska D, Markova N, Sehgal R. Evaluation of chalcone derivatives for their role as antiparasitic and neuroprotectant in experimentally induced cerebral malaria mouse model. 3 Biotech 2023; 13:260. [PMID: 37405268 PMCID: PMC10314887 DOI: 10.1007/s13205-023-03676-y] [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: 11/26/2022] [Accepted: 06/19/2023] [Indexed: 07/06/2023] Open
Abstract
Cerebral malaria is a severe complication of Plasmodium falciparum infection with a complex pathophysiology. The current course of treatment is ineffective in lowering mortality or post-treatment side effects such as neurological and cognitive abnormalities. Chalcones are enormously distributed in spices, fruits, vegetables, tea, and soy-based foodstuffs that are well known for their antimalarial activity, and in recent years they have been widely explored for brain diseases like Alzheimer's disease. Therefore, considering the previous background of chalcones serving as both antimalarial and neuroprotective, the present study aimed to study the effect of these chalcone derivatives on an experimental model of cerebral malaria (CM). CM-induced mice were tested behaviorally (elevated plus maze, rota rod test, and hanging wire test), biochemically (nitric oxide estimation, cytokines (IL-1, IL-6, IL-10, IL-12p70, TNF, IFN-y), histopathologically and immunohistochemically, and finally ultrastructural changes were examined using a transmission electron microscope. All three chalcones treated groups showed a significant (p < 0.001) decrease in percentage parasitemia at the 10th day post-infection. Mild anxiolytic activity of chalcones as compared to standard treatment with quinine has been observed during behavior tests. No pigment deposition was observed in the QNN-T group and other chalcone derivative treated groups. Rosette formation was seen in the derivative 1 treated group. The present derivatives may be pioneered by various research and science groups to design such a scaffold that will be a future antimalarial with therapeutic potential or, because of its immunomodulatory properties, it could be used as an adjunct therapy. Supplementary Information The online version contains supplementary material available at 10.1007/s13205-023-03676-y.
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Affiliation(s)
- Shweta Sinha
- Department of Medical Parasitology, Post Graduate Institute of Medical Education and Research, Chandigarh, 160012 India
| | - Bikash Medhi
- Department of Pharmacology, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - B. D. Radotra
- Department of Histopathology, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Daniela Batovska
- Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, Sofia, Bulgaria
| | - Nadezhda Markova
- Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, Sofia, Bulgaria
| | - Rakesh Sehgal
- Department of Medical Parasitology, Post Graduate Institute of Medical Education and Research, Chandigarh, 160012 India
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Li M, Lu G, Ma X, Wang R, Chen X, Yu Y, Jiang C. Anti-inflammation of isoliquiritigenin via the inhibition of NF-κB and MAPK in LPS-stimulated MAC-T cells. BMC Vet Res 2022; 18:320. [PMID: 35986317 PMCID: PMC9392288 DOI: 10.1186/s12917-022-03414-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Accepted: 08/08/2022] [Indexed: 11/10/2022] Open
Abstract
Background The application of plant extracts has received great interest for the treatment of bovine mastitis. Isoliquiritigenin (ISL) is a rich dietary flavonoid that has significant antioxidative, anti-inflammatory and anticancer activities. This study was conducted to explore the protective efficacy and related mechanism of ISL against lipopolysaccharide (LPS)-stimulated oxidation and inflammation in bovine mammary epithelial cells (MAC-T) by in vitro experiments. Results Real-time PCR and ELISA assays indicated that ISL treatment at 2.5, 5 and 10 μg/mL significantly reduced the mRNA and protein expression of the oxidative indicators cyclooxygenase-2 and inducible nitric oxide synthase (P < 0.01), and of the inflammatory cytokines interleukin-6 (P < 0.05), interleukin-1β (P < 0.01) and tumor necrosis factor-α (P < 0.01) in LPS-stimulated MAC-T cells. Moreover, Western blotting and immunofluorescence tests indicated that the phosphorylation levels of nuclear factor kappa (NF-κB) p65 and the inhibitor of NF-κB were significantly decreased by ISL treatment, thus blocking the nuclear transfer of NF-κB p65. In addition, ISL attenuated the phosphorylation levels of p38, extracellular signal-regulated kinase and c-jun NH2 terminal kinase. Conclusions Our data demonstrated that ISL downregulated the LPS-induced inflammatory response in MAC-T cells. The anti-inflammatory and antioxidative activity of ISL involves the NF-κB and MAPK cascades. Supplementary Information The online version contains supplementary material available at 10.1186/s12917-022-03414-1.
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Targeting Nrf2-Mediated Oxidative Stress Response in Traumatic Brain Injury: Therapeutic Perspectives of Phytochemicals. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:1015791. [PMID: 35419162 PMCID: PMC9001080 DOI: 10.1155/2022/1015791] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Revised: 11/22/2021] [Accepted: 03/19/2022] [Indexed: 02/07/2023]
Abstract
Traumatic brain injury (TBI), known as mechanical damage to the brain, impairs the normal function of the brain seriously. Its clinical symptoms manifest as behavioral impairment, cognitive decline, communication difficulties, etc. The pathophysiological mechanisms of TBI are complex and involve inflammatory response, oxidative stress, mitochondrial dysfunction, blood-brain barrier (BBB) disruption, and so on. Among them, oxidative stress, one of the important mechanisms, occurs at the beginning and accompanies the whole process of TBI. Most importantly, excessive oxidative stress causes BBB disruption and brings injury to lipids, proteins, and DNA, leading to the generation of lipid peroxidation, damage of nuclear and mitochondrial DNA, neuronal apoptosis, and neuroinflammatory response. Transcription factor NF-E2 related factor 2 (Nrf2), a basic leucine zipper protein, plays an important role in the regulation of antioxidant proteins, such as oxygenase-1(HO-1), NAD(P)H Quinone Dehydrogenase 1 (NQO1), and glutathione peroxidase (GPx), to protect against oxidative stress, neuroinflammation, and neuronal apoptosis. Recently, emerging evidence indicated the knockout (KO) of Nrf2 aggravates the pathology of TBI, while the treatment of Nrf2 activators inhibits neuronal apoptosis and neuroinflammatory responses via reducing oxidative damage. Phytochemicals from fruits, vegetables, grains, and other medical herbs have been demonstrated to activate the Nrf2 signaling pathway and exert neuroprotective effects in TBI. In this review, we emphasized the contributive role of oxidative stress in the pathology of TBI and the protective mechanism of the Nrf2-mediated oxidative stress response for the treatment of TBI. In addition, we summarized the research advances of phytochemicals, including polyphenols, terpenoids, natural pigments, and otherwise, in the activation of Nrf2 signaling and their potential therapies for TBI. Although there is still limited clinical application evidence for these natural Nrf2 activators, we believe that the combinational use of phytochemicals such as Nrf2 activators with gene and stem cell therapy will be a promising therapeutic strategy for TBI in the future.
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Targeting NLRP3 signaling by a novel-designed sulfonylurea compound for inhibition of microglial inflammation. Bioorg Med Chem 2022; 58:116645. [PMID: 35151118 PMCID: PMC8895276 DOI: 10.1016/j.bmc.2022.116645] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 01/24/2022] [Accepted: 01/26/2022] [Indexed: 12/28/2022]
Abstract
The nucleotide-binding oligomerization domain (NOD)-like receptor protein 3 (NLRP3) inflammasome plays an important role in microglia-mediated inflammation. Dysregulation of NLRP3 signaling results in microglial activation and triggers inflammatory responses contributing to the development of neurological disorders including ischemic stroke, schizophrenia, Alzheimer's disease (AD), Parkinson's disease (PD), and amyotrophic lateral sclerosis (ALS). Inhibition of the NLRP3-linked inflammatory pathways reduces microglia-induced inflammation and is considered as a promising therapeutic approach for neuro-inflammatory diseases. In the present study, we report the development of AMS-17, a rationally-designed tertiary sulfonylurea compound for inhibition of inflammation in microglia. AMS-17 inhibited expression of the NLRP3, and its downstream components and cytokines such as caspase-1, tumor necrosis factor-α (TNF-α), IL-1β and inducible nitric oxide synthase (iNOS). It also suppressed lipopolysaccharide (LPS)-induced N9 microglial cell phagocytosis in vitro and activation of the microglia in mouse brain in vivo. Together, these results provide promising evidences for the inhibitory effects of AMS-17 in inflammation. This proof-of-concept study provides a new chemical scaffold, designed with the aid of pharmacophore modeling, with NLRP3 inhibitory activity which can be further developed for the treatment of inflammation-associated neurological disorders.
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Mancino DNJ, Lima A, Roig P, García Segura LM, De Nicola AF, Garay LI. Tibolone restrains neuroinflammation in mouse experimental autoimmune encephalomyelitis. J Neuroendocrinol 2022; 34:e13078. [PMID: 34961984 DOI: 10.1111/jne.13078] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 11/03/2021] [Accepted: 12/03/2021] [Indexed: 11/26/2022]
Abstract
Multiple sclerosis (MS) is an immune-mediated and degenerating disease in which myelin sheaths are damaged as a result of chronic progressive inflammation of the central nervous system. Tibolone [(7α,17α)-17-hydroxy-7-methyl-19-norpregn-5(10)-en-20-in-3-one], a synthetic estrogenic compound with tissue-specific actions and used for menopausal hormone therapy, shows neuroprotective and antioxidant properties both in vivo and in vitro. In the present study, we analyzed whether tibolone plays a therapeutic role in experimental autoimmune encephalomyelitis (EAE) mice, a commonly used model of MS. Female C57BL/6 mice were induced with the myelin oligodendrocyte glycoprotein MOG35-55 and received s.c. tibolone (0.08 mg kg-1 ) injection every other day from the day of induction until death on the acute phase of the disease. Reactive gliosis, Toll like receptor 4 (TLR4), high mobility group box protein 1 (HMGB1), inflammasome parameters, activated Akt levels and myelin were assessed by a real-time polymerase chain reaction, immunohistochemistry, and western blot analysis. Our findings indicated that, in the EAE spinal cord, tibolone reversed the astrocytic and microglial reaction, and reduced the hyperexpression of TLR4 and HMGB1, as well as NLR family pyrin domain containing 3-caspase 1-interleukin-1β inflammasome activation. At the same time, tibolone attenuated the Akt/nuclear factor kappa B pathway and limited the white matter demyelination area. Estrogen receptor expression was unaltered with tibolone treatment. Clinically, tibolone improved neurological symptoms without uterine compromise. Overall, our data suggest that tibolone may serve as a promising agent for the attenuation of MS-related inflammation.
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Affiliation(s)
- Dalila N J Mancino
- Laboratory of Neuroendocrine Biochemistry, Instituto de Biologia y Medicina Experimental - CONICET, Buenos Aires, Argentina
| | - Analia Lima
- Laboratory of Neuroendocrine Biochemistry, Instituto de Biologia y Medicina Experimental - CONICET, Buenos Aires, Argentina
| | - Paulina Roig
- Laboratory of Neuroendocrine Biochemistry, Instituto de Biologia y Medicina Experimental - CONICET, Buenos Aires, Argentina
| | | | - Alejandro F De Nicola
- Laboratory of Neuroendocrine Biochemistry, Instituto de Biologia y Medicina Experimental - CONICET, Buenos Aires, Argentina
- Department of Human Biochemistry, University of Buenos Aires, Buenos Aires, Argentina
| | - Laura I Garay
- Laboratory of Neuroendocrine Biochemistry, Instituto de Biologia y Medicina Experimental - CONICET, Buenos Aires, Argentina
- Department of Human Biochemistry, University of Buenos Aires, Buenos Aires, Argentina
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Wang L, Zhang M, Wen J, Xiang Y, Duan X, Yu C, Yan M, Zhang B, Fang P. Isoliquiritigenin Alleviates Semen Strychni-Induced Neurotoxicity by Restoring the Metabolic Pathway of Neurotransmitters in Rats. Front Pharmacol 2021; 12:762290. [PMID: 34867385 PMCID: PMC8634445 DOI: 10.3389/fphar.2021.762290] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2021] [Accepted: 10/26/2021] [Indexed: 12/15/2022] Open
Abstract
Acute neurotoxicity of Semen Strychni can result in sudden death in epilepsy. The detoxification method and mechanism of Semen Strychni acute poisoning have not been clarified. This experiment focused on the mechanism of Semen Strychni neurotoxicity and the alleviation effects of isoliquiritigenin. The rats were intraperitoneally injected with Semen Strychni extract (125 mg/kg), followed by oral administration of isoliquiritigenin (50 mg/kg) for 7 days. FJ-B staining was used to evaluate the degree of injury on hippocampus neurons. The concentration of monoamines, amino acids, and choline neurotransmitters, the Dopamine (DA) and 5-hydroxytryptamine (5-HT) metabolic pathway in the hippocampus, cerebellum, striatum, prefrontal cortex, hypothalamus, serum, and plasma were detected by LC-MS/MS. The expression of neurotransmitter metabolic enzymes [catechol-O-methyl transferase (COMT) and monoamine oxidase (MAO)] and neurotransmitter receptors [glutamate N-methyl-D-aspartic acid receptors (NMDARs) and gamma-aminobutyric acid type A receptor (GABRs)] were, respectively determined using ELISA and qRT-PCR. The results indicated that Semen Strychni induced neuronal degeneration in the hippocampal CA1 region. Meanwhile, Semen Strychni inhibited the mRNA expression of NMDAR1, NMDAR2A, NMDAR2B, GABRa1, GABRb2 and reduced the level of MAO, which disrupted the DA and 5-HT metabolic pathway. However, isoliquiritigenin reversed these effects. In summary, isoliquiritigenin showed alleviation effects on Semen Strychni-induced neurotoxicity, which could be attributed to restoring neurotransmitters metabolic pathway, most likely through the activation of NMDA receptors.
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Affiliation(s)
- Lu Wang
- Department of Pharmacy, Second Xiangya Hospital, Central South University, Changsha, China
- Institute of Clinical Pharmacy, Second Xiangya Hospital, Central South University, Changsha, China
| | - Min Zhang
- Department of Pharmacy, Second Xiangya Hospital, Central South University, Changsha, China
- Institute of Clinical Pharmacy, Second Xiangya Hospital, Central South University, Changsha, China
| | - Jing Wen
- Third Hospital of Changsha, Changsha, China
| | - Yalan Xiang
- Department of Pharmacy, Second Xiangya Hospital, Central South University, Changsha, China
- Institute of Clinical Pharmacy, Second Xiangya Hospital, Central South University, Changsha, China
| | - Xiaoyu Duan
- Department of Pharmacy, Second Xiangya Hospital, Central South University, Changsha, China
- Institute of Clinical Pharmacy, Second Xiangya Hospital, Central South University, Changsha, China
| | - Changwei Yu
- Department of Pharmacy, Second Xiangya Hospital, Central South University, Changsha, China
- Institute of Clinical Pharmacy, Second Xiangya Hospital, Central South University, Changsha, China
| | - Miao Yan
- Department of Pharmacy, Second Xiangya Hospital, Central South University, Changsha, China
- Institute of Clinical Pharmacy, Second Xiangya Hospital, Central South University, Changsha, China
| | - Bikui Zhang
- Department of Pharmacy, Second Xiangya Hospital, Central South University, Changsha, China
- Institute of Clinical Pharmacy, Second Xiangya Hospital, Central South University, Changsha, China
| | - Pingfei Fang
- Department of Pharmacy, Second Xiangya Hospital, Central South University, Changsha, China
- Institute of Clinical Pharmacy, Second Xiangya Hospital, Central South University, Changsha, China
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Wang S, Ma J, Zeng Y, Zhou G, Wang Y, Zhou W, Sun X, Wu M. Icariin, an Up-and-Coming Bioactive Compound Against Neurological Diseases: Network Pharmacology-Based Study and Literature Review. DRUG DESIGN DEVELOPMENT AND THERAPY 2021; 15:3619-3641. [PMID: 34447243 PMCID: PMC8384151 DOI: 10.2147/dddt.s310686] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Accepted: 06/25/2021] [Indexed: 12/12/2022]
Abstract
Icariin is a biologically active substance in Epimedii herba that is used for the treatment of neurologic disorders. However, a comprehensive analysis of the molecular mechanisms of icariin is lacking. In this review, we present a brief history of the use of icariin for medicinal purposes; describe the active chemical components of Epimedii herba; and examine the evidence from experimental studies that have uncovered molecular targets of icariin in different diseases. We also constructed a protein–protein interaction network and carried out Gene Ontology and Kyoto Encyclopedia of Genes and Genomes functional enrichment analyses to predict the therapeutic actions of icariin in nervous system diseases including Alzheimer disease, Parkinson disease, ischemic stroke, depressive disorder, multiple sclerosis, glioblastoma, and hereditary spastic paraplegias. The results of our analyses can guide future studies on the application of icariin to the treatment of neurologic disorders.
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Affiliation(s)
- Shuangqiu Wang
- Department of Neurology, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, 210029, Jiangsu, People's Republic of China.,Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, Nanjing University of Chinese Medicine, Nanjing, 210046, People's Republic of China.,State Key Laboratory Cultivation Base for TCM Quality and Efficacy, Nanjing University of Chinese Medicine, Nanjing, 210046, Jiangsu, People's Republic of China
| | - Jiarui Ma
- Provincial Key Laboratory of Drug Target and Drug for Degenerative Disease, School of Medicine and Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing, 210046, Jiangsu, People's Republic of China
| | - Yanqi Zeng
- First Clinical Medical School, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, 210046, Jiangsu, People's Republic of China
| | - Guowei Zhou
- Department of General Surgery, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, 210029, Jiangsu, People's Republic of China
| | - Yuxuan Wang
- Department of Neurology, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, 210029, Jiangsu, People's Republic of China.,Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, Nanjing University of Chinese Medicine, Nanjing, 210046, People's Republic of China.,State Key Laboratory Cultivation Base for TCM Quality and Efficacy, Nanjing University of Chinese Medicine, Nanjing, 210046, Jiangsu, People's Republic of China
| | - Wenjuan Zhou
- First Clinical Medical School, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, 210046, Jiangsu, People's Republic of China
| | - Xiaohe Sun
- First Clinical Medical School, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, 210046, Jiangsu, People's Republic of China
| | - Minghua Wu
- Department of Neurology, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, 210029, Jiangsu, People's Republic of China.,First Clinical Medical School, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, 210046, Jiangsu, People's Republic of China
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Fakhri S, Iranpanah A, Gravandi MM, Moradi SZ, Ranjbari M, Majnooni MB, Echeverría J, Qi Y, Wang M, Liao P, Farzaei MH, Xiao J. Natural products attenuate PI3K/Akt/mTOR signaling pathway: A promising strategy in regulating neurodegeneration. PHYTOMEDICINE 2021; 91:153664. [PMID: 34391082 DOI: 10.1016/j.phymed.2021.153664] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2021] [Revised: 07/04/2021] [Accepted: 07/12/2021] [Indexed: 02/06/2023]
Abstract
BACKGROUND As common, progressive, and chronic causes of disability and death, neurodegenerative diseases (NDDs) significantly threaten human health, while no effective treatment is available. Given the engagement of multiple dysregulated pathways in neurodegeneration, there is an imperative need to target the axis and provide effective/multi-target agents to tackle neurodegeneration. Recent studies have revealed the role of phosphoinositide 3-kinase (PI3K)/Akt/mammalian target of rapamycin (mTOR) in some diseases and natural products with therapeutic potentials. PURPOSE This is the first systematic and comprehensive review on the role of plant-derived secondary metabolites in managing and/or treating various neuronal disorders via the PI3K/Akt/mTOR signaling pathway. STUDY DESIGN AND METHODS A systematic and comprehensive review was done based on the PubMed, Scopus, Web of Science, and Cochrane electronic databases. Two independent investigators followed the PRISMA guidelines and included papers on PI3K/Akt/mTOR and interconnected pathways/mediators targeted by phytochemicals in NDDs. RESULTS Natural products are multi-target agents with diverse pharmacological and biological activities and rich sources for discovering and developing novel therapeutic agents. Accordingly, recent studies have shown increasing phytochemicals in combating Alzheimer's disease, aging, Parkinson's disease, brain/spinal cord damages, depression, and other neuronal-associated dysfunctions. Amongst the emerging targets in neurodegeneration, PI3K/Akt/mTOR is of great importance. Therefore, attenuation of these mediators would be a great step towards neuroprotection in such NDDs. CONCLUSION The application of plant-derived secondary metabolites in managing and/or treating various neuronal disorders through the PI3K/Akt/mTOR signaling pathway is a promising strategy towards neuroprotection.
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Affiliation(s)
- Sajad Fakhri
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah 6734667149, Iran.
| | - Amin Iranpanah
- Student Research Committee, Kermanshah University of Medical Sciences, Kermanshah, Iran.
| | | | - Seyed Zachariah Moradi
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah 6734667149, Iran; Medical Biology Research Center, Kermanshah University of Medical Sciences, Kermanshah 6734667149, Iran.
| | - Mohammad Ranjbari
- Student Research Committee, Kermanshah University of Medical Sciences, Kermanshah, Iran.
| | | | - Javier Echeverría
- Departamento de Ciencias del Ambiente, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile.
| | - Yaping Qi
- Purdue Quantum Science and Engineering Institute, Purdue University, West Lafayette, IN 47907, USA.
| | - Mingfu Wang
- School of Biological Sciences, The University of Hong Kong, Hong Kong, PR China.
| | - Pan Liao
- Department of Biochemistry, Purdue University, West Lafayette, IN 47907, USA.
| | - Mohammad Hosein Farzaei
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah 6734667149, Iran.
| | - Jianbo Xiao
- International Research Center for Food Nutrition and Safety, Jiangsu University, Zhenjiang, China; Department of Analytical Chemistry and Food Science, Faculty of Food Science and Technology, University of Vigo - Ourense Campus, E-32004 Ourense, Spain.
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12
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Zheng Y, Liu G, Wang W, Wang Y, Cao Z, Yang H, Li S. Lactobacillus casei Zhang Counteracts Blood-Milk Barrier Disruption and Moderates the Inflammatory Response in Escherichia coli-Induced Mastitis. Front Microbiol 2021; 12:675492. [PMID: 34248887 PMCID: PMC8264260 DOI: 10.3389/fmicb.2021.675492] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Accepted: 05/07/2021] [Indexed: 12/16/2022] Open
Abstract
Escherichia coli is a common mastitis-causing pathogen that can disrupt the blood-milk barrier of mammals. Although Lactobacillus casei Zhang (LCZ) can alleviate mice mastitis, whether it has a prophylactic effect on E. coli-induced mastitis through intramammary infusion, as well as its underlying mechanism, remains unclear. In this study, E. coli-induced injury models of bovine mammary epithelial cells (BMECs) and mice in lactation were used to fill this research gap. In vitro tests of BMECs revealed that LCZ significantly inhibited the E. coli adhesion (p < 0.01); reduced the cell desmosome damage; increased the expression of the tight junction proteins claudin-1, claudin-4, occludin, and zonula occludens-1 (ZO-1; p < 0.01); and decreased the expression of the inflammatory cytokines tumor necrosis factor (TNF)-α, interleukin (IL)-1β, and IL-6 (p < 0.01), thereby increasing trans-epithelial electric resistance (p < 0.01) and attenuating the lactate dehydrogenase release induced by E. coli (p < 0.01). In vivo tests indicated that LCZ significantly reduced the injury and histological score of mice mammary tissues in E. coli-induced mastitis (p < 0.01) by significantly promoting the expression of the tight junction proteins claudin-3, occludin, and ZO-1 (p < 0.01), which ameliorated blood-milk barrier disruption, and decreasing the expression of the inflammatory cytokines (TNF-α, IL-1β, and IL-6) in mice mammary tissue (p < 0.01). Our study suggested that LCZ counteracted the disrupted blood-milk barrier and moderated the inflammatory response in E. coli-induced injury models, indicating that LCZ can ameliorate the injury of mammary tissue in mastitis.
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Affiliation(s)
- Yuhui Zheng
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Gang Liu
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Wei Wang
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Yajing Wang
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Zhijun Cao
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Hongjian Yang
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Shengli Li
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
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13
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Adelusi TI, Akinbolaji GR, Yin X, Ayinde KS, Olaoba OT. Neurotrophic, anti-neuroinflammatory, and redox balance mechanisms of chalcones. Eur J Pharmacol 2020; 891:173695. [PMID: 33121951 DOI: 10.1016/j.ejphar.2020.173695] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 10/14/2020] [Accepted: 10/26/2020] [Indexed: 02/08/2023]
Abstract
The passage of time that evoke aging; the tilted redox balance that contribute oxidative entropy; the polarization of microglia cells that produce inflammatory phenotype; all represent the intricacies of CNS-dependent disease progression. Neurological diseases that result from CNS injury raise social concerns and the available therapeutic strategies are frustrated by low efficacy, high toxicity, and multiple side effects. However, emergent studies have shown the neuroprotective role of natural compounds - including chalcones - with high efficacy in the protection of CNS structures. These compounds reportedly demonstrate neurotrophic mechanism through the upregulation of neurotrophic factors, anti-apoptotic Bcl-2, and downregulation of Bax protein; anti-neuroinflammatory mechanism via the inhibition of neuroinflammatory pathways, attenuated secretion of pro-inflammatory cytokines, prevention of blood brain barrier (BBB) disruption, and protection against nerve senescence; antioxidant mechanism through the upregulation of Nrf2 activities, inhibition of Keap1, synthesis of antioxidant enzymes, and maintenance of high antioxidant/oxidant ratio. All these mechanisms represent chalcones' neuroprotective mechanisms. In this review, we highlight different pathways involved in CNS-related diseases and elucidate various mechanisms by which chalcones can perturb these shunts as a potential therapeutic modality.
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Affiliation(s)
- Temitope Isaac Adelusi
- Computational Biology/Drug Discovery Laboratory, Department of Biochemistry, Ladoke Akintola University of Technology, Ogbomoso, Nigeria
| | - Gbemisola Rebecca Akinbolaji
- Computational Biology/Drug Discovery Laboratory, Department of Biochemistry, Ladoke Akintola University of Technology, Ogbomoso, Nigeria
| | - Xiaoxing Yin
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, 221004, China
| | | | - Olamide Tosin Olaoba
- Laboratory of Functional and Structural Biochemistry, Federal University of São Carlos, Rodovia Washington Luís, km 235, São Carlos, São Paulo, Brazil.
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14
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Zeng SS, Bai JJ, Jiang H, Zhu JJ, Fu CC, He MZ, Zhu JH, Chen SQ, Li PJ, Fu XQ, Lin ZL. Treatment With Liraglutide Exerts Neuroprotection After Hypoxic-Ischemic Brain Injury in Neonatal Rats via the PI3K/AKT/GSK3β Pathway. Front Cell Neurosci 2020; 13:585. [PMID: 32082121 PMCID: PMC7003644 DOI: 10.3389/fncel.2019.00585] [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: 09/03/2019] [Accepted: 12/23/2019] [Indexed: 12/16/2022] Open
Abstract
Neonatal hypoxic–ischemic (HI) brain injury is a detrimental disease, which results in high mortality and long-term neurological deficits. Nevertheless, the treatment options for this disease are limited. Thus, the aim of the present study was to assess the role of liraglutide in neonatal HI brain injury in rats and investigate the associated mechanisms. The results showed that treatment with liraglutide significantly reduced infarct volume and ameliorated cerebral edema, decreased inflammatory response, promoted the recovery of tissue structure, and improved prognosis following HI brain injury. Moreover, treatment with liraglutide inhibited apoptosis and promoted neuronal survival both in the rat model and following oxygen-glucose deprivation (OGD) insult. LY294002, an inhibitor of phosphoinositide 3-kinase (PI3K), partially reversed these therapeutic effects, suggesting that the PI3K/protein kinase B (Akt) pathway was involved. In conclusion, our data revealed that treatment with liraglutide exerts neuroprotection after neonatal HI brain injury via the PI3K/Akt/glycogen synthase kinase-3β (GSK3β) pathway and may be a promising therapy for this disease.
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Affiliation(s)
- Shan-Shan Zeng
- Department of Neonatology, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China
| | - Jun-Jie Bai
- Department of Neonatology, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China
| | - Huai Jiang
- Department of Neonatology, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China
| | - Jin-Jin Zhu
- Department of Neonatology, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China
| | - Chang-Chang Fu
- Department of Neonatology, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China
| | - Min-Zhi He
- Department of Neonatology, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China
| | - Jiang-Hu Zhu
- Department of Neonatology, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China
| | - Shang-Qin Chen
- Department of Neonatology, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China
| | - Pei-Jun Li
- Department of Neonatology, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China
| | - Xiao-Qin Fu
- Department of Neonatology, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China
| | - Zhen-Lang Lin
- Department of Neonatology, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China
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15
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Li Z, Xu R, Zhu X, Li Y, Wang Y, Xu W. MicroRNA-23a-3p improves traumatic brain injury through modulating the neurological apoptosis and inflammation response in mice. Cell Cycle 2019; 19:24-38. [PMID: 31818176 DOI: 10.1080/15384101.2019.1691763] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Secondary brain damage plays an important role in Traumatic brain injury (TBI) and inhibition of this damage has benefit for TBI treatment. However, the pathogenesis of secondary brain damage remains largely unknown. Here, we tried to explore the influence of microRNAs (miRNAs) on neuron apoptosis and inflammatory response after TBI. Firstly, the miRNA expression profiles were analyzed in the cerebral cortex tissues from the TBI mice model (controlled cortical impact) using miRNA microarray. miR-23a-3p (miR-23a) attracted our attention as its suppressive effects on apoptosis and inflammation. The further results showed that miR-23a upregulation improved long-term neurological function, the neuron apoptosis, and inhibited neuroinflammation, whereas knockdown of miR-23a had an opposite result. Using etoposide-induced primary cortical neurons injury model, we found that miR-23a was decreased in this cell model and miR-23a overexpression-suppressed etoposide induced the activity of caspase 3 and the releases of inflammatory mediators in primary cortical neurons. Phosphatase and tensin homolog (PTEN), a well‑known regulator of the AKT/mTOR pathway, was found to be a direct target of miR‑23a in the primary cortical neurons. Most importantly, it was found that miR-23a overexpression reactivated the AKT/mTOR pathway in TBI mice model, as demonstrated by the upregulation of phosphorylated (p‑)AKT and p‑mTOR. Taken together, these data indicate that miR-23a may serve as a therapeutic target for the treatment of TBI.
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Affiliation(s)
- Zhikun Li
- Department of Orthopedic Surgery, TongRen Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Ruijun Xu
- Department of Orthopedic Surgery, TongRen Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Xiaodong Zhu
- Department of Orthopedic Surgery, TongRen Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Yifan Li
- Department of Orthopedic Surgery, TongRen Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Yi Wang
- Department of Orthopedic Surgery, TongRen Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Wei Xu
- Department of Orthopedic Surgery, TongRen Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
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16
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Wang WT, Sun L, Sun CH. PDIA3-regulted inflammation and oxidative stress contribute to the traumatic brain injury (TBI) in mice. Biochem Biophys Res Commun 2019; 518:657-663. [PMID: 31466719 DOI: 10.1016/j.bbrc.2019.08.100] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Revised: 08/15/2019] [Accepted: 08/18/2019] [Indexed: 12/16/2022]
Abstract
Traumatic brain injury (TBI) is a leading cause of death and disability throughout the world. However, the molecular mechanism contributing to TBI still remains unclear. Protein disulfide isomerases (PDI) are a family of redox chaperones, which catalyze formation or isomerization of disulfide bonds in proteins. PDIA3, a critical member of PDI family, is a multi-functional protein, playing critical roles in modulating inflammation, apoptosis and oxidative stress under various kinds of disease conditions. Nevertheless, its regulatory effects on TBI have far from to be known. In the present study, we attempted to explore the modulation of neuroinflammatory responses by PDIA3 and its contribution to oxidative stress and cell death after TBI in the wild type (PDIA+/+) and PDIA3 knockout (PDIA3+/+) C57BL/6 mice. Results here suggested that PDIA3 expression was markedly up-regulated in the late trauma human brain tissues, which was verified in the PDIA3+/+ mice at 24 h after TBI. PDIA-/- provided significant improvements in cognitive impairments and contusion volume induced by TBI. Apoptosis in brain samples was also alleviated in TBI mice with PDIA3 deficiency. Significantly, PDIA3-/- mitigated neuroinflammation after TBI in mice, as evidenced by the reduced expression of pro-inflammatory factors interleukin (IL)-6, tumor necrosis factor-α (TNF-α) and IL-1β, while the enhanced anti-inflammatory regulator IL-10. These anti-inflammatory activities by PDIA3-/- were associated with the decrease in phosphorylated nuclear factor kappa B (NF-κB)/p65. PDIA3-/- mice following TBI showed attenuated oxidative stress, as proved by the restored superoxide dismutase (SOD) and glutathione (GSH) activities, and the down-regulated malondialdehyde (MDA) levels in brain samples. These effects regulated by PDIA3 were confirmed in OGDR-treated astrocytes. Collectively, these data demonstrated a detrimental role of PDIA3 in regulating TBI, providing an effective therapeutic target for TBI treatment in future.
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Affiliation(s)
- Wu-Tao Wang
- Department of Anesthesiology, The First Affiliated Hospital of Xi'an Medical University, Xi'an, Shaanxi, 710077, China; Department of Anesthesiology, School of General Medicine Xi'an Medical University, Xi'an, Shaanxi, 710077, China
| | - Li Sun
- Department of Anesthesiology, The Seventh Medical Center of PLA General Hospital, Beijing, 100700, China
| | - Chao-Hui Sun
- Department of Anesthesiology, Affiliated Huxi Hospital of Jining Medical College, Shanxian Central Hospital, Shanxian, Shandong, 274300, China.
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17
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Yao S, Li L, Sun X, Hua J, Zhang K, Hao L, Liu L, Shi D, Zhou H. FTY720 Inhibits MPP +-Induced Microglial Activation by Affecting NLRP3 Inflammasome Activation. J Neuroimmune Pharmacol 2019; 14:478-492. [PMID: 31069623 DOI: 10.1007/s11481-019-09843-4] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Accepted: 02/25/2019] [Indexed: 12/14/2022]
Abstract
Parkinson's disease (PD) is characterized by the degeneration of dopaminergic neurons and excessive microglial activation in the substantia nigra pars compacta (SNpc). In the present study, we aimed to demonstrate the therapeutic effectiveness of the potent sphingosine-1-phosphate receptor antagonist fingolimod (FTY720) in an animal model of PD induced by 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP), and to identify the potential mechanisms underlying these therapeutic effects. C57BL/6J mice were orally administered FTY720 before subcutaneous injection of MPTP. Open-field and rotarod tests were performed to determine the therapeutic effect of FTY720. The damage to dopaminergic neurons and the production of monoamine neurotransmitters were assessed using immunohistochemistry, high-performance liquid chromatography, and flow cytometry. Immunofluorescence (CD68- positive) and enzyme-linked immunosorbent assay were used to analyze the activation of microglia, and the levels of activated signaling molecules were measured using Western blotting. Our findings indicated that FTY720 significantly attenuated MPTP-induced behavioral deficits, reduced the loss of dopaminergic neurons, and increased dopamine release. FTY720 directly inhibited MPTP-induced microglial activation in the SNpc, suppressed the production of interleukin (IL)-6, IL-1β, and tumor necrosis factor-α in BV-2 microglial cells treated with 1-methyl-4-phenylpyridinium (MPP+), and subsequently decreased apoptosis in SH-SY5Y neuroblastoma cells. Moreover, in MPP+-treated BV-2 cells and primary microglia, FTY720 treatment significantly attenuated the increases in the phosphorylation of PI3K/AKT/GSK-3β, reduced ROS generation and p65 activation, and also inhibited the activation of NLRP3 inflammasome and caspase-1. In conclusion, FTY720 may reduce PD progression by inhibiting NLRP3 inflammasome activation via its effects on ROS generation and p65 activation in microglia. These findings provide novel insights into the mechanisms underlying the therapeutic effects of FTY720, suggesting its potential as a novel therapeutic strategy against PD. Graphical Abstract FTY720 may reduce ROS production by inhibiting the PI3K/AKT/GSK-3β signaling pathway, while at the same time reducing p65 phosphorylation, thus decreasing NLRP3 inflammasome activation through these two pathways, ultimately reducing microglia activation-induced neuronal damage.
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Affiliation(s)
- Shu Yao
- Department of Immunology, Nanjing Medical University, 101 Longmian Avenue, Nanjing, 211166, JS, China
| | - Longjun Li
- Department of Immunology, Nanjing Medical University, 101 Longmian Avenue, Nanjing, 211166, JS, China
| | - Xin Sun
- Department of Immunology, Nanjing Medical University, 101 Longmian Avenue, Nanjing, 211166, JS, China
| | - Jun Hua
- Department of Clinical Pharmacy, The Fourth Clinical Medical College of Guangzhou University of Chinese Medicine, No. 1, Fuhua Road, Futian District, Shenzhen, 518033, Guangdong, China
| | - Keqi Zhang
- Institute of Microscope Science and Technology, Ningbo Yongxin Optics Co. Ltd., 385 Mingzhu Road, Hi-tech Industry Park, Ningbo, 315040, China
| | - Li Hao
- Department of Anatomy, Physiology and Pharmacology, College of Medicine, University of Saskatchewan, 107 Wiggins Road, Saskatoon, SK, S7N 5E5, Canada
| | - Lixin Liu
- Department of Anatomy, Physiology and Pharmacology, College of Medicine, University of Saskatchewan, 107 Wiggins Road, Saskatoon, SK, S7N 5E5, Canada
| | - Dongyan Shi
- Department of Immunology, Nanjing Medical University, 101 Longmian Avenue, Nanjing, 211166, JS, China.
| | - Hong Zhou
- Department of Immunology, Nanjing Medical University, 101 Longmian Avenue, Nanjing, 211166, JS, China. .,Department of Biotherapy, Second Affiliated Hospital, Nanjing Medical University, Nanjing, 210011, Jiangsu, China.
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18
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Peng T, Jiang Y, Farhan M, Lazarovici P, Chen L, Zheng W. Anti-inflammatory Effects of Traditional Chinese Medicines on Preclinical in vivo Models of Brain Ischemia-Reperfusion-Injury: Prospects for Neuroprotective Drug Discovery and Therapy. Front Pharmacol 2019; 10:204. [PMID: 30930774 PMCID: PMC6423897 DOI: 10.3389/fphar.2019.00204] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Accepted: 02/18/2019] [Indexed: 12/28/2022] Open
Abstract
Acquired brain ischemia-and reperfusion-injury (IRI), including both Ischemic stroke (IS) and Traumatic Brain injury (TBI), is one of the most common causes of disability and death in adults and represents a major burden in both western and developing countries worldwide. China’s clinical neurological therapeutic experience in the use of traditional Chinese medicines (TCMs), including TCM-derived active compounds, Chinese herbs, TCM formulations and decoction, in brain IRI diseases indicated a trend of significant improvement in patients’ neurological deficits, calling for blind, placebo-controlled and randomized clinical trials with careful meta-analysis evaluation. There are many TCMs in use for brain IRI therapy in China with significant therapeutic effects in preclinical studies using different brain IRI-animal. The basic hypothesis in this field claims that in order to avoid the toxicity and side effects of the complex TCM formulas, individual isolated and identified compounds that exhibited neuroprotective properties could be used as lead compounds for the development of novel drugs. China’s efforts in promoting TCMs have contributed to an explosive growth of the preclinical research dedicated to the isolation and identification of TCM-derived neuroprotective lead compounds. Tanshinone, is a typical example of TCM-derived lead compounds conferring neuroprotection toward IRI in animals with brain middle cerebral artery occlusion (MCAO) or TBI models. Recent reports show the significance of the inflammatory response accompanying brain IRI. This response appears to contribute to both primary and secondary ischemic pathology, and therefore anti-inflammatory strategies have become popular by targeting pro-inflammatory and anti-inflammatory cytokines, other inflammatory mediators, reactive oxygen species, nitric oxide, and several transcriptional factors. Here, we review recent selected studies and discuss further considerations for critical reevaluation of the neuroprotection hypothesis of TCMs in IRI therapy. Moreover, we will emphasize several TCM’s mechanisms of action and attempt to address the most promising compounds and the obstacles to be overcome before they will enter the clinic for IRI therapy. We hope that this review will further help in investigations of neuroprotective effects of novel molecular entities isolated from Chinese herbal medicines and will stimulate performance of clinical trials of Chinese herbal medicine-derived drugs in IRI patients.
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Affiliation(s)
- Tangming Peng
- Center of Reproduction, Development and Aging, Faculty of Health Sciences, University of Macau, Macau, China.,Institute of Translation Medicine, Faculty of Health Sciences, University of Macau, Macau, China.,Department of Neurosurgery, Affiliated Hospital of Southwest Medical University, Luzhou, China.,Neurosurgical Clinical Research Center of Sichuan Province, Luzhou, China
| | - Yizhou Jiang
- Center of Reproduction, Development and Aging, Faculty of Health Sciences, University of Macau, Macau, China.,Institute of Translation Medicine, Faculty of Health Sciences, University of Macau, Macau, China
| | - Mohd Farhan
- Center of Reproduction, Development and Aging, Faculty of Health Sciences, University of Macau, Macau, China.,Institute of Translation Medicine, Faculty of Health Sciences, University of Macau, Macau, China
| | - Philip Lazarovici
- Faculty of Medicine, School of Pharmacy, The Institute for Drug Research, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Ligang Chen
- Department of Neurosurgery, Affiliated Hospital of Southwest Medical University, Luzhou, China.,Neurosurgical Clinical Research Center of Sichuan Province, Luzhou, China
| | - Wenhua Zheng
- Center of Reproduction, Development and Aging, Faculty of Health Sciences, University of Macau, Macau, China.,Institute of Translation Medicine, Faculty of Health Sciences, University of Macau, Macau, China
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