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Feng L, Dai S, Zhang C, Zhang W, Zhu W, Wang C, He Y, Song W. Ripa-56 protects retinal ganglion cells in glutamate-induced retinal excitotoxic model of glaucoma. Sci Rep 2024; 14:3834. [PMID: 38360971 PMCID: PMC10869350 DOI: 10.1038/s41598-024-54075-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Accepted: 02/08/2024] [Indexed: 02/17/2024] Open
Abstract
Glaucoma is a prevalent cause of blindness globally, characterized by the progressive degeneration of retinal ganglion cells (RGCs). Among various factors, glutamate excitotoxicity stands out as a significant contributor of RGCs loss in glaucoma. Our study focused on Ripa-56 and its protective effect against NMDA-induced retinal damage in mice, aiming to delve into the potential underlying mechanism. The R28 cells were categorized into four groups: glutamate (Glu), Glu + Ripa-56, Ripa-56 and Control group. After 24 h of treatment, cell death was assessed by PI / Hoechst staining. Mitochondrial membrane potential changes, apoptosis and reactive oxygen species (ROS) production were analyzed using flow cytometry. The alterations in the expression of RIP-1, p-MLKL, Bcl-2, BAX, Caspase-3, Gpx4 and SLC7A11 were examined using western blot analysis. C57BL/6j mice were randomly divided into NMDA, NMDA + Ripa-56, Ripa-56 and control groups. Histological changes in the retina were evaluated using hematoxylin and eosin (H&E) staining. RGCs survival and the protein expression changes of RIP-1, Caspase-3, Bcl-2, Gpx4 and SLC7A11 were observed using immunofluorescence. Ripa-56 exhibited a significant reduction in the levels of RIP-1, p-MLKL, Caspase-3, and BAX induced by glutamate, while promoting the expression of Bcl-2, Gpx-4, and SLC7A1 in the Ripa-56-treated group. In our study, using an NMDA-induced normal tension glaucoma mice model, we employed immunofluorescence and H&E staining to observe that Ripa-56 treatment effectively ameliorated retinal ganglion cell loss, mitigating the decrease in retinal ganglion cell layer and bipolar cell layer thickness caused by NMDA. In this study, we have observed that Ripa-56 possesses remarkable anti- necroptotic, anti-apoptotic and anti-ferroptosis properties. It demonstrates the ability to combat not only glutamate-induced excitotoxicity in R28 cells, but also NMDA-induced retinal excitotoxicity in mice. Therefore, Ripa-56 could be used as a potential retinal protective agent.
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Affiliation(s)
- Lemeng Feng
- National Clinical Research Center for Geriatric Diseases, Xiangya Hospital of Central South University, No. 87 Xiangya Road, Changsha, Hunan, 410008, People's Republic of China
- Eye Center of Xiangya Hospital, Central South University, Changsha, Hunan, 410008, People's Republic of China
- Hunan Key Laboratory of Ophthalmology, Changsha, Hunan, 410008, People's Republic of China
| | - Shirui Dai
- Department of Ophthalmology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, 410011, People's Republic of China
- Hunan Clinical Research Center of Ophthalmic Disease, Changsha, Hunan, 410011, People's Republic of China
| | - Cheng Zhang
- National Clinical Research Center for Geriatric Diseases, Xiangya Hospital of Central South University, No. 87 Xiangya Road, Changsha, Hunan, 410008, People's Republic of China
- Eye Center of Xiangya Hospital, Central South University, Changsha, Hunan, 410008, People's Republic of China
- Hunan Key Laboratory of Ophthalmology, Changsha, Hunan, 410008, People's Republic of China
| | - Wulong Zhang
- National Clinical Research Center for Geriatric Diseases, Xiangya Hospital of Central South University, No. 87 Xiangya Road, Changsha, Hunan, 410008, People's Republic of China
- Eye Center of Xiangya Hospital, Central South University, Changsha, Hunan, 410008, People's Republic of China
- Hunan Key Laboratory of Ophthalmology, Changsha, Hunan, 410008, People's Republic of China
| | - Weiming Zhu
- National Clinical Research Center for Geriatric Diseases, Xiangya Hospital of Central South University, No. 87 Xiangya Road, Changsha, Hunan, 410008, People's Republic of China
- Eye Center of Xiangya Hospital, Central South University, Changsha, Hunan, 410008, People's Republic of China
- Hunan Key Laboratory of Ophthalmology, Changsha, Hunan, 410008, People's Republic of China
| | - Chao Wang
- National Clinical Research Center for Geriatric Diseases, Xiangya Hospital of Central South University, No. 87 Xiangya Road, Changsha, Hunan, 410008, People's Republic of China
- Eye Center of Xiangya Hospital, Central South University, Changsha, Hunan, 410008, People's Republic of China
- Hunan Key Laboratory of Ophthalmology, Changsha, Hunan, 410008, People's Republic of China
| | - Ye He
- National Clinical Research Center for Geriatric Diseases, Xiangya Hospital of Central South University, No. 87 Xiangya Road, Changsha, Hunan, 410008, People's Republic of China
- Eye Center of Xiangya Hospital, Central South University, Changsha, Hunan, 410008, People's Republic of China
- Hunan Key Laboratory of Ophthalmology, Changsha, Hunan, 410008, People's Republic of China
| | - Weitao Song
- National Clinical Research Center for Geriatric Diseases, Xiangya Hospital of Central South University, No. 87 Xiangya Road, Changsha, Hunan, 410008, People's Republic of China.
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de Sousa JT, Dihl RR, Menezes Boaretto FB, Garcia ALH, Grivicich I, da Silva J, Picada JN. Morphine decreases cytotoxicity and mutagenicity of doxorubicin in vitro: Implications for cancer chemotherapy. Chem Biol Interact 2023; 382:110652. [PMID: 37524295 DOI: 10.1016/j.cbi.2023.110652] [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: 12/16/2022] [Revised: 07/21/2023] [Accepted: 07/29/2023] [Indexed: 08/02/2023]
Abstract
Morphine is the most common opioid analgesic administered to treat pain in patients undergoing cancer chemotherapy. This study aimed to evaluate the cytotoxic and mutagenic effects of morphine alone and in combination with doxorubicin (Dox), an antineoplastic agent largely used in patients with solid cancers. Cytotoxicity was evaluated in neuroblastoma (SH-SY5Y) and fibroblast (V79) cells using 3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyl tetrazolium bromide (MTT) colorimetric assay while mutagenicity was assessed using the Salmonella/microsome assay in the absence and in the presence of S9 mix. Morphine showed a cytotoxic effect mainly on SH-SY5Y cells and reduced the cytotoxic effects of Dox when evaluated in a co-treatment procedure. In the Salmonella/microsome assay, it was observed that morphine did not induce mutations and, in fact, decreased the mutagenic effects induced by Dox in TA98 and TA102 strains in the absence of metabolic activation. Furthermore, in the presence of metabolic activation, no induction of mutations was observed with morphine. In conclusion, morphine decreased Dox cytotoxicity in both neuronal and non-neuronal cells and showed antimutagenic effects in the TA102 strain which detects mutagens inducing DNA oxidative damages. However, morphine decreased frameshift mutations induced by Dox in non-cytotoxic concentrations, an effect suggesting interference of Dox intercalation activity that could decrease its chemotherapeutic efficacy. These compelling findings highlight the importance of conducting further studies to explore the potential implications of co-administering morphine and Dox during cancer chemotherapy.
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Affiliation(s)
- Jayne Torres de Sousa
- Laboratory of Genetic Toxicology, Graduate Program in Molecular and Cellular Biology Applied to Health, Lutheran University of Brazil, Av. Farroupilha 8001, 92425-900, Canoas, RS, Brazil; Laboratory of Genetic Toxicity and Cellular Toxic-Genetic Analysis, Graduate Program in Molecular and Cellular Biology Applied to Health, Lutheran University of Brazil, Av. Farroupilha 8001, 92425-900, Canoas, Brazil
| | - Rafael Rodrigues Dihl
- Laboratory of Genetic Toxicity and Cellular Toxic-Genetic Analysis, Graduate Program in Molecular and Cellular Biology Applied to Health, Lutheran University of Brazil, Av. Farroupilha 8001, 92425-900, Canoas, Brazil
| | - Fernanda Brião Menezes Boaretto
- Laboratory of Genetic Toxicology, Graduate Program in Molecular and Cellular Biology Applied to Health, Lutheran University of Brazil, Av. Farroupilha 8001, 92425-900, Canoas, RS, Brazil
| | - Ana Leticia Hilário Garcia
- Laboratory of Genetic Toxicology, Graduate Program in Molecular and Cellular Biology Applied to Health, Lutheran University of Brazil, Av. Farroupilha 8001, 92425-900, Canoas, RS, Brazil; Laboratory of Genetics Toxicology, La Salle University, Av. Victor Barreto, 2288, 92010-000, Canoas, RS, Brazil
| | - Ivana Grivicich
- Laboratory of Cancer Biology, Graduate Program in Molecular and Cellular Biology Applied to Health, Lutheran University of Brazil, Av. Farroupilha 8001, 92425-900, Canoas, RS, Brazil
| | - Juliana da Silva
- Laboratory of Genetic Toxicology, Graduate Program in Molecular and Cellular Biology Applied to Health, Lutheran University of Brazil, Av. Farroupilha 8001, 92425-900, Canoas, RS, Brazil; Laboratory of Genetics Toxicology, La Salle University, Av. Victor Barreto, 2288, 92010-000, Canoas, RS, Brazil
| | - Jaqueline Nascimento Picada
- Laboratory of Genetic Toxicology, Graduate Program in Molecular and Cellular Biology Applied to Health, Lutheran University of Brazil, Av. Farroupilha 8001, 92425-900, Canoas, RS, Brazil.
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Faulkner MB, Rizk M, Bazzi Z, Dysko RC, Zhang Z. Sex-Specific Effects of Buprenorphine on Endoplasmic Reticulum Stress, Abnormal Protein Accumulation, and Cell Loss After Pediatric Mild Traumatic Brain Injury in Mice. Neurotrauma Rep 2023; 4:573-585. [PMID: 37752926 PMCID: PMC10518695 DOI: 10.1089/neur.2023.0051] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/28/2023] Open
Abstract
Traumatic brain injury (TBI) in children often leads to poor developmental outcomes attributable to progressive cell loss caused by secondary injuries, including endoplasmic reticulum (ER) stress. Buprenorphine (BPN) is commonly used in children for pain management; however, the effects of BPN on ER stress in the pediatric population are still inconclusive. This study investigated the sex-specific effects of BPN on ER stress, abnormal protein accumulation, and cell loss in a mouse impact acceleration model of pediatric TBI. On post-natal day 20-21 (P20-21), male and female littermates were randomized into sham, TBI + saline and TBI + BPN groups. BPN (0.075 mg/kg) was administered to TBI + BPN mice at 30 min after injury and then every 6-12 h for 2 days. The impact of BPN was evaluated at 1, 3, and 7 days post-injury. We found that TBI induced more prominent ER stress pathway activation at 1 and 3 days post-injury in males, compared to females, whereas abnormal protein accumulation and cell loss were more severe in females at 7 days post-injury, compared with males. Although BPN partially ameliorated abnormal protein accumulation and cell loss in both males and females, BPN only decreased ER stress pathway activation in males, not in females. In conclusion, BPN exhibits sex-specific effects on ER stress, abnormal protein accumulation, and cell loss in a time-dependent manner at the acute phase after pediatric TBI, which provides the rationale to assess the potential effects of BPN on long-term outcomes after pediatric TBI in both males and females.
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Affiliation(s)
- Megan B. Faulkner
- Department of Natural Sciences, University of Michigan–Dearborn, Dearborn, Michigan, USA
| | - Mariam Rizk
- Department of Natural Sciences, University of Michigan–Dearborn, Dearborn, Michigan, USA
| | - Zahraa Bazzi
- Department of Natural Sciences, University of Michigan–Dearborn, Dearborn, Michigan, USA
| | - Robert C. Dysko
- Unit for Laboratory Animal Medicine, University of Michigan–Ann Arbor, Ann Arbor, Michigan, USA
| | - Zhi Zhang
- Department of Natural Sciences, University of Michigan–Dearborn, Dearborn, Michigan, USA
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Murlanova K, Jouroukhin Y, Novototskaya-Vlasova K, Huseynov S, Pletnikova O, Morales MJ, Guan Y, Kamiya A, Bergles DE, Dietz DM, Pletnikov MV. Loss of Astrocytic µ Opioid Receptors Exacerbates Aversion Associated with Morphine Withdrawal in Mice: Role of Mitochondrial Respiration. Cells 2023; 12:1412. [PMID: 37408246 PMCID: PMC10216734 DOI: 10.3390/cells12101412] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Revised: 04/19/2023] [Accepted: 05/15/2023] [Indexed: 07/07/2023] Open
Abstract
Astrocytes express mu/µ opioid receptors, but the function of these receptors remains poorly understood. We evaluated the effects of astrocyte-restricted knockout of µ opioid receptors on reward- and aversion-associated behaviors in mice chronically exposed to morphine. Specifically, one of the floxed alleles of the Oprm1 gene encoding µ opioid receptor 1 was selectively deleted from brain astrocytes in Oprm1 inducible conditional knockout (icKO) mice. These mice did not exhibit changes in locomotor activity, anxiety, or novel object recognition, or in their responses to the acute analgesic effects of morphine. Oprm1 icKO mice displayed increased locomotor activity in response to acute morphine administration but unaltered locomotor sensitization. Oprm1 icKO mice showed normal morphine-induced conditioned place preference but exhibited stronger conditioned place aversion associated with naloxone-precipitated morphine withdrawal. Notably, elevated conditioned place aversion lasted up to 6 weeks in Oprm1 icKO mice. Astrocytes isolated from the brains of Oprm1 icKO mice had unchanged levels of glycolysis but had elevated oxidative phosphorylation. The basal augmentation of oxidative phosphorylation in Oprm1 icKO mice was further exacerbated by naloxone-precipitated withdrawal from morphine and, similar to that for conditioned place aversion, was still present 6 weeks later. Our findings suggest that µ opioid receptors in astrocytes are linked to oxidative phosphorylation and they contribute to long-term changes associated with opioid withdrawal.
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Affiliation(s)
- Kateryna Murlanova
- Department of Physiology and Biophysics, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, NY 14203, USA
| | - Yan Jouroukhin
- Department of Physiology and Biophysics, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, NY 14203, USA
| | - Ksenia Novototskaya-Vlasova
- Department of Physiology and Biophysics, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, NY 14203, USA
| | - Shovgi Huseynov
- Department of Physiology and Biophysics, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, NY 14203, USA
| | - Olga Pletnikova
- Department of Pathology and Anatomical Sciences, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, NY 14203, USA
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Michael J. Morales
- Department of Physiology and Biophysics, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, NY 14203, USA
| | - Yun Guan
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
- Department of Neurological Surgery, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Atsushi Kamiya
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - Dwight E. Bergles
- Solomon H. Snyder Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - David M. Dietz
- Department of Pharmacology and Toxicology, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, NY 14203, USA
| | - Mikhail V. Pletnikov
- Department of Physiology and Biophysics, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, NY 14203, USA
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
- Solomon H. Snyder Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
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Abd El-Hay RI, Mazroa SA, El-Mohandes E, Am M. The possible protective role of melatonin versus garlic on monosodium Glutamate-induced changes in rat cerebellar cortex: histological, immunohistochemical and electron microscope study. Ultrastruct Pathol 2023; 47:1-24. [PMID: 36803391 DOI: 10.1080/01913123.2023.2175943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Revised: 01/19/2023] [Accepted: 01/30/2023] [Indexed: 02/21/2023]
Abstract
Monosodium glutamate (MSG) is widely used as a flavor enhancer. Melatonin and garlic are well known as antioxidant. The present study was performed to evaluate the microscopic changes in the cerebellar cortex of rats after the administration of MSG and the possible protective effect of melatonin versus garlic on those changes. The rats were divided into four main groups. Group I (control group). Group II received MSG (4 mg/ g/day). Group III received MSG+ melatonin (10 mg/kg bw/day). Group IV received MSG+garlic (300 mg/kg bw/day). Immunohistochemical staining for glial fibrillary acidic protein (GFAP) was done as a marker for astrocyte demonstration. Morphometric study was done to assess the mean number and diameter of Purkinje cells, the number of astrocytes and the percentage area of positive GFAP immune stain. MSG group demonstrated congested blood vessels, vacuolations in the molecular layer, and Purkinje cells appeared irregular with nuclear degeneration. Granule cells appeared shrunken with darkly stained nuclei. The immunohistochemical stain for GFAP was less than expected in the three layers of the cerebellar cortex. Purkinje cells and granule cells appeared irregular in shape with dark small heterochromatic nuclei. The myelinated nerve fibers showed splitting and loss of the lamellar structure of their myelin sheath. Melatonin group showed that the cerebellar cortex was nearly similar to that of control group. Garlic treated group showed partial improvement. In conclusion, melatonin and garlic could partially protect against MSG induced changes and the protective effect of melatonin was better than garlic.
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Affiliation(s)
- Reem Ibrahim Abd El-Hay
- Department of Medical Histology and Cell Biology, Faculty of Medicine, Mansoura University Al Mansurah Egypt
| | - Shireen A Mazroa
- Department of Medical Histology and Cell Biology, Faculty of Medicine, Mansoura University Al Mansurah Egypt
| | - E El-Mohandes
- Department of Medical Histology and Cell Biology, Faculty of Medicine, Mansoura University Al Mansurah Egypt
| | - Moustafa Am
- Department of Medical Histology and Cell Biology, Faculty of Medicine, Mansoura University Al Mansurah Egypt
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Murlanova K, Jouroukhin Y, Huseynov S, Pletnikova O, Morales MJ, Guan Y, Baraban JM, Bergles DE, Pletnikov MV. Deficient mitochondrial respiration in astrocytes impairs trace fear conditioning and increases naloxone-precipitated aversion in morphine-dependent mice. Glia 2022; 70:1289-1300. [PMID: 35275429 PMCID: PMC9773362 DOI: 10.1002/glia.24169] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Revised: 02/28/2022] [Accepted: 03/01/2022] [Indexed: 12/25/2022]
Abstract
Mitochondria are abundant in the fine processes of astrocytes, however, potential roles for astrocyte mitochondria remain poorly understood. In the present study, we performed a systematic examination of the effects of abnormal oxidative phosphorylation in astrocytes on several mouse behaviors. Impaired astrocyte oxidative phosphorylation was produced by astrocyte-specific deletion of the nuclear mitochondrial gene, Cox10, that encodes an accessory protein of complex IV, the protoheme:heme-O-farnesyl transferase. As expected, conditional deletion of the Cox10 gene in mice (cKO mice) significantly reduced expression of COX10 and Cytochrome c oxidase subunit I (MTCO1) of Complex IV, resulting in decreased oxidative phosphorylation without significantly affecting glycolysis. No effects of the deletion were observed on locomotor activity, anxiety-like behavior, nociception, or spontaneous alternation. Cox10 cKO female mice exhibited mildly impaired novel object recognition, while Cox10 cKO male mice were moderately deficient in trace fear conditioning. No group-related changes were observed in conditional place preference (CPP) that assessed effects of morphine on reward. In contrast to CPP, Cox10 cKO mice demonstrated significantly increased aversive behaviors produced by naloxone-precipitated withdrawal following chronic exposure to morphine, that is, jumping and avoidance behavior as assessed by conditional place aversion (CPA). Our study suggests that astrocyte oxidative phosphorylation may contribute to behaviors associated with greater cognitive load and/or aversive and stressful conditions.
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Affiliation(s)
- Kateryna Murlanova
- Department of Physiology and Biophysics, Jacobs School of Medicine, State University of New York at Buffalo, Buffalo, New York, USA
| | - Yan Jouroukhin
- Department of Physiology and Biophysics, Jacobs School of Medicine, State University of New York at Buffalo, Buffalo, New York, USA
| | - Shovgi Huseynov
- Department of Physiology and Biophysics, Jacobs School of Medicine, State University of New York at Buffalo, Buffalo, New York, USA,Molecular Basis of Integrative Activity, Academician Abdulla Garayev Institute of Physiology, National Academy of Sciences of Azerbaijan, Baku, Azerbaijan
| | - Olga Pletnikova
- Department of Pathology and Anatomical Sciences, Jacobs School of Medicine; State University of New York at Buffalo, Buffalo, New York, USA,Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Michael J. Morales
- Department of Physiology and Biophysics, Jacobs School of Medicine, State University of New York at Buffalo, Buffalo, New York, USA
| | - Yun Guan
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA,Department of Neurological Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Jay M. Baraban
- Solomon H. Snyder Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Dwight E. Bergles
- Solomon H. Snyder Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Mikhail V. Pletnikov
- Department of Physiology and Biophysics, Jacobs School of Medicine, State University of New York at Buffalo, Buffalo, New York, USA,Solomon H. Snyder Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA,Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
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Peng J, Pan J, Wang H, Mo J, Lan L, Peng Y. Morphine-induced microglial immunosuppression via activation of insufficient mitophagy regulated by NLRX1. J Neuroinflammation 2022; 19:87. [PMID: 35414088 PMCID: PMC9006625 DOI: 10.1186/s12974-022-02453-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Accepted: 03/31/2022] [Indexed: 11/10/2022] Open
Abstract
Background Chronic morphine exposure induces immunosuppression in the peripheral and central nervous system, resulting in susceptibility of patients to invading pathogens. Mitophagy is a crucial regulator of inflammation, and dysregulated mitophagy may cause immunosuppression, but whether mitophagy is linked with morphine-induced immunosuppression in the brain remains unknown. NLRX1 is the only mitochondrially localized NOD family receptor protein which serves as a critical regulator in immunity and mitophagy activation, but it remains an enigma how NLRX1 functions in the crosstalk between microglial inflammatory defense and mitophagy in the presence of morphine. Methods Primary microglia and astrocytes, BV2 and MA cell lines were utilized. Mice were stimulated with repeated morphine treatment to mimic chronic morphine exposure, and activation of mitophagy, lysosomal functions, and inflammation were assayed in specific brain regions and immune organs with or without NLRX1-silencing. Results Morphine induced microglial mitophagy in a LC3 (microtubule-associated proteins light chain 3)-dependent manner, which was mediated by NLRX1. Contrastingly, morphine impaired lysosomal functions, including generation, acidification and mitophagosome–lysosome fusion, thus leading to insufficient mitophagy activation in microglia. NLRX1-silencing inhibited mitophagy activity and rescued lysosomal functions including generation and acidification in microglia. The NLRX1-mediated incomplete mitophagy in microglial cells contributed to immunosuppression and vulnerability towards pathogenic challenge after morphine treatment. In vivo, NLRX1-mediated microglial mitophagy activation by morphine was mainly located in the murine brain cortex, striatum, and cerebellum, where NLRX1 functioned as a negative immune regulator and facilitated septic shock. Collectively, microglial immune responses to septic shock were amenable to NLRX1 silencing in the brain with morphine treatment. Conclusion Morphine activated insufficient mitophagy in microglia which was regulated by NLRX1, ultimately leading to host immunosuppression and susceptible conditions in the brain. Supplementary Information The online version contains supplementary material available at 10.1186/s12974-022-02453-7.
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Affiliation(s)
- Jialing Peng
- Department of Neurology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, No. 107 West Yanjiang Road, Guangzhou, 510120, China
| | - Jingrui Pan
- Department of Neurology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, No. 107 West Yanjiang Road, Guangzhou, 510120, China
| | - Hongxuan Wang
- Department of Neurology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, No. 107 West Yanjiang Road, Guangzhou, 510120, China
| | - Jingjing Mo
- Department of Neurology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, No. 107 West Yanjiang Road, Guangzhou, 510120, China
| | - Lihuan Lan
- Department of Neurology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, No. 107 West Yanjiang Road, Guangzhou, 510120, China
| | - Ying Peng
- Department of Neurology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, No. 107 West Yanjiang Road, Guangzhou, 510120, China. .,Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China.
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Shen Z, Zhao H, Yao H, Pan X, Yang J, Zhang S, Han G, Zhang X. Dynamic metabolic change of cancer cells induced by natural killer cells at single-cell level studied by label-free mass cytometry. Chem Sci 2022; 13:1641-1647. [PMID: 35282636 PMCID: PMC8827047 DOI: 10.1039/d1sc06366a] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Accepted: 12/31/2021] [Indexed: 01/10/2023] Open
Abstract
Natural killer cells (NK cells) are important immune cells which have attracted increasing attention in cancer immunotherapy. Due to the heterogeneity of cells, individual cancer cells show different resistance to NK cytotoxicity, which has been revealed by flow cytometry. Here we used label-free mass cytometry (CyESI-MS) as a new tool to analyze the metabolites in Human Hepatocellular Carcinoma (HepG2) cells at the single-cell level after the interaction with different numbers of NK92 MI cells. A large amount of chemical information from individual HepG2 cells was obtained showing the process of cell apoptosis induced by NK cells. Nineteen metabolites which consecutively change during cell apoptosis were revealed by calculating their average relative intensity. Four metabolic pathways were impacted during cell apoptosis which hit 4 metabolites including glutathione (GSH), creatine, glutamic acid and taurine. We found that the HepG2 cells could be divided into two phenotypes after co-culturing with NK cells according to the bimodal distribution of concentration of these 4 metabolites. The correlation between metabolites and different apoptotic pathways in the early apoptosis cell group was established by the 4 metabolites at the single-cell level. This is a new idea of using single-cell specific metabolites to reveal the metabolic heterogeneity in cell apoptosis which would be a powerful means for evaluating the cytotoxicity of NK cells. Label-free mass cytometry is utilized to study the dynamic metabolic change during apoptosis in HepG2 cells induced by NK92 MI cells at the single-cell level. The metabolic heterogeneity of individual HepG2 cells during apoptosis was revealed.![]()
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Affiliation(s)
- Zizheng Shen
- Department of Chemistry, Tsinghua University Beijing 100084 China
| | - Hansen Zhao
- Department of Chemistry, Tsinghua University Beijing 100084 China
| | - Huan Yao
- Department of Chemistry, Tsinghua University Beijing 100084 China
| | - Xingyu Pan
- Department of Chemistry, Tsinghua University Beijing 100084 China
| | - Jinlei Yang
- Department of Chemistry, Tsinghua University Beijing 100084 China
| | - Sichun Zhang
- Department of Chemistry, Tsinghua University Beijing 100084 China
| | - Guojun Han
- Institute of Medical Technology, Peking University Health Science Center Beijing 100191 China
- Peking University School and Hospital of Stomatology Beijing 100081 P. R. China
- Department of Biomedical Engineering, Peking University Health Science Center Beijing 100191 P. R. China
| | - Xinrong Zhang
- Department of Chemistry, Tsinghua University Beijing 100084 China
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Wu G, Zhou J, Yang M, Xu C, Pang H, Qin X, Lin S, Yang J, Hu J. The Regulatory Effects of Taurine on Neurogenesis and Apoptosis of Neural Stem Cells in the Hippocampus of Rats. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2022; 1370:351-367. [DOI: 10.1007/978-3-030-93337-1_34] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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10
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Rahimi S, Dadfar B, Tavakolian G, Asadi Rad A, Rashid Shabkahi A, Siahposht-Khachaki A. Morphine attenuates neuroinflammation and blood-brain barrier disruption following traumatic brain injury through the opioidergic system. Brain Res Bull 2021; 176:103-111. [PMID: 34464684 DOI: 10.1016/j.brainresbull.2021.08.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 08/23/2021] [Accepted: 08/25/2021] [Indexed: 01/11/2023]
Abstract
Endogenous opiates are suggested to have a role in the pathophysiology of traumatic brain injury (TBI). Furthermore, administration of opioidergic agents in TBI injured animals have been shown to affect the brain injury and provide neuroprotection post-TBI. This study aims to investigate the potential neuroprotective effects of morphine through inhibition of neuroinflammatory pathways in acute severe TBI. Male Wistar rats were divided into seven groups (24 rats per group): Sham, Vehicle (TBI + intraperitoneal (i.p) injection of normal saline), TBI + i.p injection of morphine in 1, 5 and 10 mg/kg doses (MOR 1, MOR 5 and MOR 10 groups), TBI + morphine (5 mg/kg i.p) + Naloxone (NAL + MOR), and TBI + morphine (5 mg/kg i.p) + Naltrindole (NALT + MOR). A severe diffuse TBI model (weight dropping Marmarou model) was used to induce TBI in rats. The veterinary coma scale (VCS), beam-walk, and beam-balance tasks were used to assess short-term neurological deficits. Histolopathological changes of brain tissue was evaluated using light microscopy and hematoxilin and eosin staining. Blood-Brain barrier (BBB) disruption was evaluated by the Evans Blue method 6 h post-injury. Brain water content and cerebrospinal fluid (CSF) content of IL-1β and IL-10 were assessed by the wet-dry method and enzyme-linked immunosorbent assay (ELISA), respectively. Morphine (1 and 5 mg/kg doses) attenuated BBB leakage, improved VCS score, pathological changes of brain tissue, and vestibulomotor function compared to the vehicle group (p < 0.0001). Only 5 mg/kg morphine attenuated brain edema (p < 0.0001). Furthermore, 1 and 5 mg/kg morphine significantly changed CSF concentration of IL-1β and IL-10 compared to the vehicle group (p < 0.0001). Inhibition of opioid receptors by naloxone and naltrindole abolished morphine neuroprotective effects (p < 0.0001 vs. MOR 5 group). This study suggests that morphine administration inhibits TBI-mediated neuroinflammation via opioid receptors and improves neurobehavioral function following TBI, which provides a potential therapeutic opportunity in the treatment of traumatic brain injury.
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Affiliation(s)
- Siavash Rahimi
- Department of Physiology and Pharmacology, Ramsar Campus, Mazandaran University of Medical Sciences, Sari, Iran; Department for BioMedical Research, Molecular Dermatology and Stem Cell Research, University of Bern, Bern, Switzerland; Department of Dermatology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland.
| | - Behzad Dadfar
- Department of Physiology, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran.
| | - Golvash Tavakolian
- Department of Physiology, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran.
| | - Arya Asadi Rad
- Department of Physiology and Pharmacology, Ramsar Campus, Mazandaran University of Medical Sciences, Sari, Iran.
| | - Ali Rashid Shabkahi
- Department of Physiology and Pharmacology, Ramsar Campus, Mazandaran University of Medical Sciences, Sari, Iran.
| | - Ali Siahposht-Khachaki
- Department of Physiology, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran.
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11
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Lin TT, Qu J, Wang CY, Yang X, Hu F, Hu L, Wu XF, Jiang CY, Liu WT, Han Y. Rescue of HSP70 in Spinal Neurons Alleviates Opioids-Induced Hyperalgesia via the Suppression of Endoplasmic Reticulum Stress in Rodents. Front Cell Dev Biol 2020; 8:269. [PMID: 32500072 PMCID: PMC7243285 DOI: 10.3389/fcell.2020.00269] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Accepted: 03/30/2020] [Indexed: 12/15/2022] Open
Abstract
A major unresolved issue in treating pain is the paradoxical hyperalgesia produced by the gold-standard analgesic morphine and other opioids. Endoplasmic reticulum (ER) stress has been shown to contribute to neuropathic or inflammatory pain, but its roles in opioids-induced hyperalgesia (OIH) are elusive. Here, we provide the first direct evidence that ER stress is a significant driver of OIH. GRP78, the ER stress marker, is markedly upregulated in neurons in the spinal cord after chronic morphine treatment. At the same time, morphine induces the activation of three arms of unfolded protein response (UPR): inositol-requiring enzyme 1α/X-box binding protein 1 (IRE1α/XBP1), protein kinase RNA-like ER kinase/eukaryotic initiation factor 2 subunit alpha (PERK/eIF2α), and activating transcription factor 6 (ATF6). Notably, we found that inhibition on either IRE1α/XBP1 or ATF6, but not on PERK/eIF2α could attenuate the development of OIH. Consequently, ER stress induced by morphine enhances PKA-mediated phosphorylation of NMDA receptor subunit 1(NR1) and leads to OIH. We further showed that heat shock protein 70 (HSP70), a molecular chaperone involved in protein folding in ER, is heavily released from spinal neurons after morphine treatment upon the control of KATP channel. Glibenclamide, a classic KATP channel blocker that inhibits the efflux of HSP70 from cytoplasm to extracellular environment, or HSP70 overexpression in neurons, could markedly suppress morphine-induced ER stress and hyperalgesia. Taken together, our findings uncover the induction process and the central role of ER stress in the development of OIH and support a novel strategy for anti-OIH treatment.
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Affiliation(s)
- Tong-Tong Lin
- Neuroprotective Drug Discovery Key Laboratory, Department of Pharmacology, Nanjing Medical University, Nanjing, China
| | - Jie Qu
- Neuroprotective Drug Discovery Key Laboratory, Department of Pharmacology, Nanjing Medical University, Nanjing, China
| | - Chao-Yu Wang
- Neuroprotective Drug Discovery Key Laboratory, Department of Pharmacology, Nanjing Medical University, Nanjing, China
| | - Xing Yang
- Neuroprotective Drug Discovery Key Laboratory, Department of Pharmacology, Nanjing Medical University, Nanjing, China
| | - Fan Hu
- Neuroprotective Drug Discovery Key Laboratory, Department of Pharmacology, Nanjing Medical University, Nanjing, China
| | - Liang Hu
- Neuroprotective Drug Discovery Key Laboratory, Department of Pharmacology, Nanjing Medical University, Nanjing, China
| | - Xue-Feng Wu
- State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing, China
| | - Chun-Yi Jiang
- Neuroprotective Drug Discovery Key Laboratory, Department of Pharmacology, Nanjing Medical University, Nanjing, China
| | - Wen-Tao Liu
- Neuroprotective Drug Discovery Key Laboratory, Department of Pharmacology, Nanjing Medical University, Nanjing, China.,Institute of Translational Medicine, Nanjing Medical University, Nanjing, China
| | - Yuan Han
- Jiangsu Province Key Laboratory of Anesthesiology, Xuzhou Medical University, Xuzhou, China
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12
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Park S, Lee JY, Lim W, You S, Song G. Butylated Hydroxyanisole Exerts Neurotoxic Effects by Promoting Cytosolic Calcium Accumulation and Endoplasmic Reticulum Stress in Astrocytes. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:9618-9629. [PMID: 31381342 DOI: 10.1021/acs.jafc.9b02899] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Astrocytes provide nutritional support, regulate inflammation, and perform synaptic functions in the human brain. Although butylated hydroxyanisole (BHA) is a well-known antioxidant, several studies in animals have indicated BHA-mediated liver toxicity, retardation in reproductive organ development and learning, and sleep deficit. However, the specific effects of BHA on human astrocytes and the underlying mechanisms are yet unclear. Here, we investigated the antigrowth effects of BHA through cell cycle arrest and downregulation of regulatory protein expression. The typical cell proliferative signaling pathways, phosphoinositide 3-kinase/protein kinase B and extracellular signal-regulated kinase 1/2, were downregulated in astrocytes after BHA treatment. BHA increased the levels of pro-apoptotic proteins, such as BAX, cytochrome c, cleaved caspase 3, and cleaved caspase 9, and decreased the level of anti-apoptotic protein BCL-XL. It also increased the cytosolic calcium level and the expression of endoplasmic reticulum stress proteins. Treatment with BAPTA-AM, a calcium chelator, attenuated the increased levels of ER stress proteins and cleaved members of the caspase family. We further performed an in vivo evaluation of the neurotoxic effect of BHA on zebrafish embryos and glial fibrillary acidic protein, a representative astrocyte biomarker, in a gfap:eGFP zebrafish transgenic model. Our results provide clear evidence of the potent cytotoxic effects of BHA on human astrocytes, which lead to disruption of the brain and nerve development.
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Affiliation(s)
- Sunwoo Park
- Institute of Animal Molecular Biotechnology and Department of Biotechnology, College of Life Sciences and Biotechnology , Korea University , Seoul 02841 , Republic of Korea
| | - Jin-Young Lee
- Department of Biochemistry , Medical College of Wisconsin , Milwaukee , Wisconsin 53226 , United States
| | - Whasun Lim
- Department of Food and Nutrition , Kookmin University , Seoul 02707 , Republic of Korea
| | - Seungkwon You
- Institute of Animal Molecular Biotechnology and Department of Biotechnology, College of Life Sciences and Biotechnology , Korea University , Seoul 02841 , Republic of Korea
| | - Gwonhwa Song
- Institute of Animal Molecular Biotechnology and Department of Biotechnology, College of Life Sciences and Biotechnology , Korea University , Seoul 02841 , Republic of Korea
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13
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Curcumin mitigates axonal injury and neuronal cell apoptosis through the PERK/Nrf2 signaling pathway following diffuse axonal injury. Neuroreport 2019; 29:661-677. [PMID: 29570500 PMCID: PMC5959262 DOI: 10.1097/wnr.0000000000001015] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Diffuse axonal injury (DAI) accounts for more than 50% of all traumatic brain injury. In response to the mechanical damage associated with DAI, the abnormal proteins produced in the neurons and axons, namely, β-APP and p-tau, induce endoplasmic reticulum (ER) stress. Curcumin, a major component extracted from the rhizome of Curcuma longa, has shown potent anti-inflammatory, antioxidant, anti-infection, and antitumor activity in previous studies. Moreover, curcumin is an activator of nuclear factor-erythroid 2-related factor 2 (Nrf2) and promotes its nuclear translocation. In this study, we evaluated the therapeutic potential of curcumin for the treatment of DAI and investigated the mechanisms underlying the protective effects of curcumin against neural cell death and axonal injury after DAI. Rats subjected to a model of DAI by head rotational acceleration were treated with vehicle or curcumin to evaluate the effect of curcumin on neuronal and axonal injury. We observed that curcumin (20 mg/kg intraperitoneal) administered 1 h after DAI induction alleviated the aggregation of p-tau and β-APP in neurons, reduced ER-stress-related cell apoptosis, and ameliorated neurological deficits. Further investigation showed that the protective effect of curcumin in DAI was mediated by the PERK/Nrf2 pathway. Curcumin promoted PERK phosphorylation, and then Nrf2 dissociated from Keap1 and was translocated to the nucleus, which activated ATF4, an important bZIP transcription factor that maintains intracellular homeostasis, but inhibited the CHOP, a hallmark of ER stress and ER-associated programmed cell death. In summary, we demonstrate for the first time that curcumin confers protection against abnormal proteins and neuronal apoptosis after DAI, that the process is mediated by strengthening of the unfolded protein response to overcome ER stress, and that the protective effect of curcumin against DAI is dependent on the activation of Nrf2.
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14
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Tsai SYA, Bendriem RM, Lee CTD. The cellular basis of fetal endoplasmic reticulum stress and oxidative stress in drug-induced neurodevelopmental deficits. Neurobiol Stress 2018; 10:100145. [PMID: 30937351 PMCID: PMC6430408 DOI: 10.1016/j.ynstr.2018.100145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Revised: 12/02/2018] [Accepted: 12/26/2018] [Indexed: 11/30/2022] Open
Abstract
Prenatal substance exposure is a growing public health concern worldwide. Although the opioid crisis remains one of the most prevalent addiction problems in our society, abuse of cocaine, methamphetamines, and other illicit drugs, particularly amongst pregnant women, are nonetheless significant and widespread. Evidence demonstrates prenatal drug exposure can affect fetal brain development and thus can have long-lasting impact on neurobehavioral and cognitive performance later in life. In this review, we highlight research examining the most prevalent drugs of abuse and their effects on brain development with a focus on endoplasmic reticulum stress and oxidative stress signaling pathways. A thorough exploration of drug-induced cellular stress mechanisms during prenatal brain development may provide insight into therapeutic interventions to combat effects of prenatal drug exposure.
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Affiliation(s)
- S-Y A Tsai
- Integrative Neuroscience Branch, Division of Neuroscience and Behavior, National Institute on Drug Abuse, The National Institute of Health, Department of Health and Human Services, Bethesda, MD, 20892, USA
| | - Raphael M Bendriem
- Center for Neurogenetics, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, 10021, USA
| | - Chun-Ting D Lee
- Department of Neurology, Miller School of Medicine, University of Miami, Miami, USA
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15
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Wang B, Su CJ, Liu TT, Zhou Y, Feng Y, Huang Y, Liu X, Wang ZH, Chen LH, Luo WF, Liu T. The Neuroprotection of Low-Dose Morphine in Cellular and Animal Models of Parkinson's Disease Through Ameliorating Endoplasmic Reticulum (ER) Stress and Activating Autophagy. Front Mol Neurosci 2018; 11:120. [PMID: 29731707 PMCID: PMC5920031 DOI: 10.3389/fnmol.2018.00120] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2017] [Accepted: 03/28/2018] [Indexed: 12/02/2022] Open
Abstract
Parkinson's disease (PD) is a common neurodegenerative disease characterized the progressive loss of dopaminergic (DA) neurons in the substantia nigra pars compacta (SNc). Brain endogenous morphine biosynthesis was reported to be impaired in PD patients and exogenous morphine attenuated 6-hydroxydopamine (6-OHDA)-induced cell death in vitro. However, the mechanisms underlying neuroprotection of morphine in PD are still unclear. In the present study, we investigated the neuroprotective effects of low-dose morphine in cellular and animal models of PD and the possible underlying mechanisms. Herein, we found 6-OHDA and rotenone decreased the mRNA expression of key enzymes involved in endogenous morphine biosynthesis in SH-SY5Y cells. Incubation of morphine prevented 6-OHDA-induced apoptosis, restored mitochondrial membrane potential, and inhibited the accumulation of intracellular reactive oxygen species (ROS) in SH-SY5Y cells. Furthermore, morphine attenuated the 6-OHDA-induced endoplasmic reticulum (ER) stress possible by activating autophagy in SH-SY5Y cells. Finally, oral application of low-dose morphine significantly improved midbrain tyrosine hydroxylase (TH) expression, decreased apomorphine-evoked rotation and attenuated pain hypersensitivity in a 6-OHDA-induced PD rat model, without the risks associated with morphine addiction. Feeding of low-dose morphine prolonged the lifespan and improved the motor function in several transgenic Drosophila PD models in gender, genotype, and dose-dependent manners. Overall, our results suggest that neuroprotection of low-dose morphine may be mediated by attenuating ER stress and oxidative stress, activating autophagy, and ameliorating mitochondrial function.
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Affiliation(s)
- Bing Wang
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and the Second Affiliated Hospital of Soochow University, Suzhou, China
- Institute of Neuroscience, Soochow University, Suzhou, China
| | - Cun-Jin Su
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and the Second Affiliated Hospital of Soochow University, Suzhou, China
- Institute of Neuroscience, Soochow University, Suzhou, China
| | - Teng-Teng Liu
- Institute of Neuroscience, Soochow University, Suzhou, China
| | - Yan Zhou
- Institute of Neuroscience, Soochow University, Suzhou, China
| | - Yu Feng
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and the Second Affiliated Hospital of Soochow University, Suzhou, China
- Institute of Neuroscience, Soochow University, Suzhou, China
| | - Ya Huang
- Institute of Neuroscience, Soochow University, Suzhou, China
| | - Xu Liu
- Institute of Neuroscience, Soochow University, Suzhou, China
| | - Zhi-Hong Wang
- Institute of Neuroscience, Soochow University, Suzhou, China
| | - Li-Hua Chen
- Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Department of Nutrition and Food Hygiene, School of Public Health, Soochow University, Suzhou, China
| | - Wei-Feng Luo
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and the Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Tong Liu
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and the Second Affiliated Hospital of Soochow University, Suzhou, China
- Institute of Neuroscience, Soochow University, Suzhou, China
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16
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Liu D, Zhou Y, Peng Y, Su P, Li Z, Xu Q, Tu Y, Tian X, Yang H, Wu Z, Mei W, Gao F. Endoplasmic Reticulum Stress in Spinal Cord Contributes to the Development of Morphine Tolerance. Front Mol Neurosci 2018; 11:72. [PMID: 29559889 PMCID: PMC5845556 DOI: 10.3389/fnmol.2018.00072] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2017] [Accepted: 02/20/2018] [Indexed: 12/12/2022] Open
Abstract
Morphine tolerance remains an intractable problem, which hinders its prolonged use in clinical practice. Endoplasmic reticulum (ER) stress has been proved to play a fundamental role in the pathogenesis of Alzheimer's disease, diabetes, atherosclerosis, cancer, etc. In this study, we provide the first direct evidence that ER stress may be a significant driver of morphine tolerance. Binding immunoglobulin protein (BiP), the ER stress marker, was significantly upregulated in neurons in spinal dorsal horn in rats being treated with morphine for 7 days. Additionally, chronic morphine treatment resulted in the activation of three arms of unfolded protein response (UPR): inositol-requiring enzyme 1/X-box binding protein 1 (IRE1/XBP1), protein kinase RNA-like ER kinase/eukaryotic initiation factor 2 subunit alpha (PERK/eIF2α), and activating transcription factor 6 (ATF6). More importantly, inhibiting either one of the three cascades could attenuate the development of morphine tolerance. Taken together, our results suggest that ER stress in spinal cord might contribute to the development of morphine tolerance. These findings implicate a potential clinical strategy for preventing morphine tolerance and may contribute to expanding the morphine usage in clinic.
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Affiliation(s)
- Daiqiang Liu
- Department of Anesthesiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yaqun Zhou
- Department of Anesthesiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yawen Peng
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Hubei General Hospital, Wuhan, China
| | - Peng Su
- Department of Anesthesiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zheng Li
- Department of Anesthesiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Qiaoqiao Xu
- Department of Anesthesiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ye Tu
- Department of Anesthesiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xuebi Tian
- Department of Anesthesiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Hui Yang
- Department of Anesthesiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhen Wu
- Department of Anesthesiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Wei Mei
- Department of Anesthesiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Feng Gao
- Department of Anesthesiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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17
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Zanfirescu A, Cristea AN, Nitulescu GM, Velescu BS, Gradinaru D. Chronic Monosodium Glutamate Administration Induced Hyperalgesia in Mice. Nutrients 2017; 10:E1. [PMID: 29267217 PMCID: PMC5793229 DOI: 10.3390/nu10010001] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Revised: 12/06/2017] [Accepted: 12/14/2017] [Indexed: 01/23/2023] Open
Abstract
Monosodium glutamate (MSG) is a widely used food additive. Although it is generally considered safe, some questions regarding the impact of its use on general health have arisen. Several reports correlate MSG consumption with a series of unwanted reactions, including headaches and mechanical sensitivity in pericranial muscles. Endogenous glutamate plays a significant role in nociceptive processing, this neurotransmitter being associated with hyperalgesia and central sensitization. One of the mechanisms underlying these phenomena is the stimulation of Ca2+/calmodulin sensitive nitric oxide synthase, and a subsequent increase in nitric oxide production. This molecule is a key player in nociceptive processing, with implications in acute and chronic pain states. Our purpose was to investigate the effect of this food additive on the nociceptive threshold when given orally to mice. Hot-plate and formalin tests were used to assess nociceptive behaviour. We also tried to determine if a correlation between chronic administration of MSG and variations in central nitric oxide (NO) concentration could be established. We found that a dose of 300 mg/kg MSG given for 21 days reduces the pain threshold and is associated with a significant increase in brain NO level. The implications of these findings on food additive-drug interaction, and on pain perception in healthy humans, as well as in those suffering from affections involving chronic pain, are still to be investigated.
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Affiliation(s)
- Anca Zanfirescu
- Faculty of Pharmacy, "Carol Davila" University of Medicine and Pharmacy, TraianVuia 6, 020956 Bucharest, Romania.
| | | | - George Mihai Nitulescu
- Faculty of Pharmacy, "Carol Davila" University of Medicine and Pharmacy, TraianVuia 6, 020956 Bucharest, Romania.
| | - Bruno Stefan Velescu
- Faculty of Pharmacy, "Carol Davila" University of Medicine and Pharmacy, TraianVuia 6, 020956 Bucharest, Romania.
| | - Daniela Gradinaru
- Faculty of Pharmacy, "Carol Davila" University of Medicine and Pharmacy, TraianVuia 6, 020956 Bucharest, Romania.
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18
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Then CK, Liu KH, Liao MH, Chung KH, Wang JY, Shen SC. Antidepressants, sertraline and paroxetine, increase calcium influx and induce mitochondrial damage-mediated apoptosis of astrocytes. Oncotarget 2017; 8:115490-115502. [PMID: 29383176 PMCID: PMC5777788 DOI: 10.18632/oncotarget.23302] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2017] [Accepted: 12/04/2017] [Indexed: 01/01/2023] Open
Abstract
The impacts of antidepressants on the pathogenesis of dementia remain unclear despite depression and dementia are closely related. Antidepressants have been reported may impair serotonin-regulated adaptive processes, increase neurological side-effects and cytotoxicity. An ‘astroglio-centric’ perspective of neurodegenerative diseases proposes astrocyte dysfunction is involved in the impairment of proper central nervous system functioning. Thus, defining whether antidepressants are harmful to astrocytes is an intriguing issue. We used an astrocyte cell line, primary cultured astrocytes and neuron cells, to identify the effects of 11 antidepressants which included selective serotonin reuptake inhibitors, a serotonin-norepinephrine reuptake inhibitor, tricyclic antidepressants, a tetracyclic antidepressant, a monoamine oxide inhibitor, and a serotonin antagonist and reuptake inhibitor. We found that treatment with 10 μM sertraline and 20 μM paroxetine significantly reduced cell viability. We further explored the underlying mechanisms and found induction of the [Ca2+]i level in astrocytes. We also revealed that sertraline and paroxetine induced mitochondrial damage, ROS generation, and astrocyte apoptosis with elevation of cleaved-caspase 3 and cleaved-PARP levels. Ultimately, we validated these mechanisms in primary cultured astrocytes and neuron cells and obtained consistent results. These results suggest that sertraline and paroxetine cause astrocyte dysfunction, and this impairment may be involved in the pathogenesis of neurodegenerative diseases.
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Affiliation(s)
- Chee-Kin Then
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, Taiwan.,School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Kao-Hui Liu
- Department of Dermatology, Taipei Medical University Shuang Ho Hospital, New Taipei City, Taiwan.,Department of Pharmacology, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Ming-Hsuan Liao
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Kuo-Hsuan Chung
- Department of Psychiatry and Psychiatric Research Center, Taipei Medical University Hospital, Taipei, Taiwan.,Department of Psychiatry, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Jia-Yi Wang
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, Taiwan.,Department of Physiology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Shing-Chuan Shen
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, Taiwan.,Department of Dermatology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.,International Master/Ph.D. Program in Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
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