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Herrera MI, Udovin LD, Kobiec T, Toro-Urrego N, Kusnier CF, Kölliker-Frers RA, Luaces JP, Otero-Losada M, Capani F. Palmitoylethanolamide attenuates neurodevelopmental delay and early hippocampal damage following perinatal asphyxia in rats. Front Behav Neurosci 2022; 16:953157. [PMID: 36090655 PMCID: PMC9452789 DOI: 10.3389/fnbeh.2022.953157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Accepted: 07/25/2022] [Indexed: 01/11/2023] Open
Abstract
Impaired gas exchange close to labor causes perinatal asphyxia (PA), a neurodevelopmental impairment factor. Palmitoylethanolamide (PEA) proved neuroprotective in experimental brain injury and neurodegeneration models. This study aimed to evaluate PEA effects on the immature-brain, i.e., early neuroprotection by PEA in an experimental PA paradigm. Newborn rats were placed in a 37°C water bath for 19 min to induce PA. PEA 10 mg/kg, s.c., was administered within the first hour of life. Neurobehavioral responses were assessed from postnatal day 1 (P1) to postnatal day 21 (P21), recording the day of appearance of several reflexes and neurological signs. Hippocampal CA1 area ultrastructure was examined using electron microscopy. Microtubule-associated protein 2 (MAP-2), phosphorylated high and medium molecular weight neurofilaments (pNF H/M), and glial fibrillary acidic protein (GFAP) were assessed using immunohistochemistry and Western blot at P21. Over the first 3 weeks of life, PA rats showed late gait, negative geotaxis and eye-opening onset, and delayed appearance of air-righting, auditory startle, sensory eyelid, forelimb placing, and grasp reflexes. On P21, the hippocampal CA1 area showed signs of neuronal degeneration and MAP-2 deficit. PEA treatment reduced PA-induced hippocampal damage and normalized the time of appearance of gait, air-righting, placing, and grasp reflexes. The outcome of this study might prove useful in designing intervention strategies to reduce early neurodevelopmental delay following PA.
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Affiliation(s)
- Maria I. Herrera
- Centro de Investigaciones en Psicología y Psicopedagogía, Facultad de Psicología, Pontificia Universidad Católica Argentina, Buenos Aires, Argentina,Centro de Altos Estudios en Ciencias Humanas y de la Salud, Universidad Abierta Interamericana, Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina
| | - Lucas D. Udovin
- Centro de Altos Estudios en Ciencias Humanas y de la Salud, Universidad Abierta Interamericana, Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina
| | - Tamara Kobiec
- Centro de Investigaciones en Psicología y Psicopedagogía, Facultad de Psicología, Pontificia Universidad Católica Argentina, Buenos Aires, Argentina,Centro de Altos Estudios en Ciencias Humanas y de la Salud, Universidad Abierta Interamericana, Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina
| | - Nicolas Toro-Urrego
- Centro de Altos Estudios en Ciencias Humanas y de la Salud, Universidad Abierta Interamericana, Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina
| | - Carlos F. Kusnier
- Centro de Altos Estudios en Ciencias Humanas y de la Salud, Universidad Abierta Interamericana, Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina
| | - Rodolfo A. Kölliker-Frers
- Centro de Altos Estudios en Ciencias Humanas y de la Salud, Universidad Abierta Interamericana, Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina
| | - Juan P. Luaces
- Centro de Altos Estudios en Ciencias Humanas y de la Salud, Universidad Abierta Interamericana, Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina
| | - Matilde Otero-Losada
- Centro de Altos Estudios en Ciencias Humanas y de la Salud, Universidad Abierta Interamericana, Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina
| | - Francisco Capani
- Centro de Altos Estudios en Ciencias Humanas y de la Salud, Universidad Abierta Interamericana, Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina,Instituto de Ciencias Biomédicas, Facultad de Ciencias de la Salud, Universidad Autónoma de Chile, Santiago, Chile,*Correspondence: Francisco Capani,
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Holubiec MI, Romero JI, Urbainsky C, Gellert M, Galeano P, Capani F, Lillig CH, Hanschmann EM. Nucleoredoxin Plays a Key Role in the Maintenance of Retinal Pigmented Epithelium Differentiation. Antioxidants (Basel) 2022; 11:antiox11061106. [PMID: 35740003 PMCID: PMC9220054 DOI: 10.3390/antiox11061106] [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: 04/21/2022] [Revised: 05/29/2022] [Accepted: 05/29/2022] [Indexed: 02/05/2023] Open
Abstract
Nucleoredoxin (Nrx) belongs to the Thioredoxin protein family and functions in redox-mediated signal transduction. It contains the dithiol active site motif Cys-Pro-Pro-Cys and interacts and regulates different proteins in distinct cellular pathways. Nrx was shown to be catalytically active in the insulin assay and recent findings indicate that Nrx functions, in fact, as oxidase. Here, we have analyzed Nrx in the mammalian retina exposed to (perinatal) hypoxia-ischemia/reoxygenation, combining ex vivo and in vitro models. Our data show that Nrx regulates cell differentiation, which is important to (i) increase the number of glial cells and (ii) replenish neurons that are lost following the hypoxic insult. Nrx is essential to maintain cell morphology. These regulatory changes are related to VEGF but do not seem to be linked to the Wnt/β-catenin pathway, which is not affected by Nrx knock-down. In conclusion, our results strongly suggest that hypoxia-ischemia could lead to alterations in the organization of the retina, related to changes in RPE cell differentiation. Nrx may play an essential role in the maintenance of the RPE cell differentiation state via the regulation of VEGF release.
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Affiliation(s)
- Mariana I. Holubiec
- Facultad de Medicina, Instituto de Investigaciones Cardiológicas “Prof. Dr. Alberto C. Taquini” (ININCA), Universidad de Buenos Aires (UBA-CONICET), Buenos Aires 1122, Argentina;
- Instituto de Investigación en Biomedicina de Buenos Aires, Partner Institute of the MaxPlank Society (IBioBA-CONICET-MPSP), Buenos Aires 2390, Argentina
- Correspondence: (M.I.H.); (E.-M.H.); Tel.: +54-11-51618547 (M.I.H.); +49-211-8106040 (E.-M.H.)
| | - Juan I. Romero
- Instituto de Investigaciones Bioquímicas de Buenos Aires (IIBBA-CONICET), Fundación Instituto Leloir, Buenos Aires 1405, Argentina; (J.I.R.); (P.G.)
| | - Claudia Urbainsky
- Institute for Medical Biochemistry and Molecular Biology, University Medicine Greifswald, University of Greifswald, 17489 Greifswald, Germany; (C.U.); (M.G.); (C.H.L.)
| | - Manuela Gellert
- Institute for Medical Biochemistry and Molecular Biology, University Medicine Greifswald, University of Greifswald, 17489 Greifswald, Germany; (C.U.); (M.G.); (C.H.L.)
| | - Pablo Galeano
- Instituto de Investigaciones Bioquímicas de Buenos Aires (IIBBA-CONICET), Fundación Instituto Leloir, Buenos Aires 1405, Argentina; (J.I.R.); (P.G.)
| | - Francisco Capani
- Facultad de Medicina, Instituto de Investigaciones Cardiológicas “Prof. Dr. Alberto C. Taquini” (ININCA), Universidad de Buenos Aires (UBA-CONICET), Buenos Aires 1122, Argentina;
- Facultad de Medicina, Universidad Católica Argentina (UCA), Buenos Aires 1600, Argentina
| | - Christopher Horst Lillig
- Institute for Medical Biochemistry and Molecular Biology, University Medicine Greifswald, University of Greifswald, 17489 Greifswald, Germany; (C.U.); (M.G.); (C.H.L.)
| | - Eva-Maria Hanschmann
- Institute for Medical Biochemistry and Molecular Biology, University Medicine Greifswald, University of Greifswald, 17489 Greifswald, Germany; (C.U.); (M.G.); (C.H.L.)
- Department of Neurology, Medical Faculty, Heinrich-Heine University, 40225 Düsseldorf, Germany
- Correspondence: (M.I.H.); (E.-M.H.); Tel.: +54-11-51618547 (M.I.H.); +49-211-8106040 (E.-M.H.)
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Nesfatin-1 protects H9c2 cardiomyocytes against cobalt chloride-induced hypoxic injury by modulating the MAPK and Notch1 signaling pathways. ACTA ACUST UNITED AC 2021; 28:21. [PMID: 34517917 PMCID: PMC8436528 DOI: 10.1186/s40709-021-00147-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Accepted: 06/30/2021] [Indexed: 01/03/2023]
Abstract
BACKGROUND This study aimed to explore the effect of nesfatin-1 on cobalt chloride (CoCl2)-induced hypoxic injury in cardiomyocyte H9c2 cells. METHODS H9c2 cardiomyocytes were induced by different concentrations of CoCl2 to mimic the hypoxia condition. Cell viability was detected by MTT assay. Cell apoptosis was detected by TUNEL staining and flow cytometry. ROS production was detected using the fluorescence probe DCFH-DA. The mitochondrial membrane potential (MMP) was detected using the TMRE method. The levels of released lactate dehydrogenase (LDH), malondialdehyde (MDA), superoxide dismutase (SOD), glutathione (GSH), and catalase (CAT) were detected using the commercial kits. The protein levels of MAPK signaling members (p-JNK1/2, p-ERK1/2, and p-p38) and Notch1 signaling members (Notch1, Hes 1, and Jagged 1) were detected by Western blot. RESULTS CoCl2 significantly promoted cell apoptosis, increased LDH leakage, MDA concentration, and decreased cell viability, SOD activity, GSH production, and CAT activity. CoCl2-induced hypoxic injury in H9c2 cells was partially restored by nesfatin-1 treatment. Moreover, nesfatin-1 treatment attenuated CoCl2-induced increase in ROS production and mitochondrial dysfunction, decreased mitochondrial membrane potential, Bax/Bcl-2 imbalance, as well as c-caspase-9 and c-caspase-3 levels. Moreover, nesfatin-1 treatment inhibited the activation of MAPK and Notch1 signaling pathways. CONCLUSIONS Nesfatin-1 could effectively protect H9c2 cells against CoCl2-induced hypoxic injury by blocking MAPK and Notch1 signaling pathways, suggesting that nesfatin-1 might be a promising therapeutic agent for hypoxic cardiac injury.
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Li C, Xin H, Shi Y, Mu J. Glutaredoxin 2 protects cardiomyocytes from hypoxia/reoxygenation-induced injury by suppressing apoptosis, oxidative stress, and inflammation via enhancing Nrf2 signaling. Int Immunopharmacol 2021; 94:107428. [PMID: 33581580 DOI: 10.1016/j.intimp.2021.107428] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 01/14/2021] [Accepted: 01/19/2021] [Indexed: 01/14/2023]
Abstract
Glutaredoxin 2 (GRX2) plays a cytoprotective role under various pathological conditions. However, whether GRX2 plays a role during myocardial ischemia-reperfusion injury has not been fully elucidated. In this work, we aimed to explore the detailed role and mechanism of GRX2 in modulating hypoxia/reoxygenation (H/R)-induced cardiac injury in vitro. H/R treatment resulted in a significant increase in GRX2 expression in cardiomyocytes. GRX2 knockdown enhanced the sensitivity of cardiomyocytes to H/R-induced apoptosis, oxidative stress, and inflammation, while GRX2 up-regulation exerted a cardioprotective role in H/R-injured cardiomyocytes. Further investigations revealed that GRX2 up-regulation enhanced the activation of nuclear factor erythroid 2-related factor 2 (Nrf2) signaling associated with upregulation of the phosphorylation of Akt and glycogen synthase kinase-3β (GSK-3β). Akt inhibition markedly abolished GRX2-mediated activation of Nrf2, while GSK-3β inhibition reversed GRX2-knockdown-mediated inhibition of Nrf2. In addition, Nrf2 inhibition markedly abrogated GRX2-mediated protective effects against H/R-induced apoptosis, oxidative stress and inflammation. Overall, this work indicates that GRX2 protects cardiomyocytes from H/R-induced apoptosis, oxidative stress, and inflammation by enhancing Nrf2 activation via modulation of the Akt/GSK-3β axis. Our study highlights a potential relevance of GRX2 in myocardial ischemia-reperfusion injury; it may serve as an attractive target for cardioprotection.
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Affiliation(s)
- Chengliang Li
- Department of Cardiology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China; Department of General Practice, The First Affiliated Hospital of Xi'an Medical University, Xi'an 710077, China
| | - Hong Xin
- Department of Cardiology, The First Affiliated Hospital of Xi'an Medical University, Xi'an 710077, China
| | - Yingpeng Shi
- Department of General Practice, The First Affiliated Hospital of Xi'an Medical University, Xi'an 710077, China
| | - Jianjun Mu
- Department of Cardiology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China.
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Udovin LD, Kobiec T, Herrera MI, Toro-Urrego N, Kusnier CF, Kölliker-Frers RA, Ramos-Hryb AB, Luaces JP, Otero-Losada M, Capani F. Partial Reversal of Striatal Damage by Palmitoylethanolamide Administration Following Perinatal Asphyxia. Front Neurosci 2020; 13:1345. [PMID: 31969800 PMCID: PMC6960201 DOI: 10.3389/fnins.2019.01345] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2019] [Accepted: 11/29/2019] [Indexed: 01/27/2023] Open
Abstract
Perinatal asphyxia (PA) is a clinical condition brought by a birth temporary oxygen deprivation associated with long-term damage in the corpus striatum, one of the most compromised brain areas. Palmitoylethanolamide (PEA) is a neuromodulator well known for its protective effects in brain injury models, including PA, albeit not deeply studied regarding its particular effects in the corpus striatum following PA. Using Bjelke et al. (1991) PA model, full-term pregnant rats were decapitated, and uterus horns were placed in a water bath at 37°C for 19 min. One hour later, the pups were injected with PEA 10 mg/kg s.c., and placed with surrogate mothers. After 30 days, the animals were perfused, and coronal striatal sections were collected to analyze protein-level expression by Western blot and the reactive area by immunohistochemistry for neuron markers: phosphorylated neurofilament-heavy/medium-chain (pNF-H/M) and microtubule-associated protein-2 (MAP-2), and the astrocyte marker, glial fibrillary acidic protein (GFAP). Results indicated that PA produced neuronal damage and morphological changes. Asphyctic rats showed a decrease in pNF-H/M and MAP-2 reactive areas, GFAP+ cells number, and MAP-2 as well as pNF-H/M protein expression in the striatum. Treatment with PEA largely restored the number of GFAP+ cells. Most important, it ameliorated the decrease in pNF-H/M and MAP-2 reactive areas in asphyctic rats. Noticeably, PEA treatment reversed the decrease in MAP-2 protein expression and largely prevented PA-induced decrease in pNF-H/M protein expression. PA did not affect the GFAP protein level. Treatment with PEA attenuated striatal damage induced by PA, suggesting its therapeutic potential for the prevention of neurodevelopmental disorders.
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Affiliation(s)
- Lucas D Udovin
- Institute of Cardiological Research, University of Buenos Aires, National Research Council (ININCA-UBA-CONICET), Buenos Aires, Argentina
| | - Tamara Kobiec
- Institute of Cardiological Research, University of Buenos Aires, National Research Council (ININCA-UBA-CONICET), Buenos Aires, Argentina.,Centro de Investigaciones en Psicología y Psicopedagogía (CIPP), Pontificia Universidad Católica Argentina, Buenos Aires, Argentina
| | - María I Herrera
- Institute of Cardiological Research, University of Buenos Aires, National Research Council (ININCA-UBA-CONICET), Buenos Aires, Argentina.,Centro de Investigaciones en Psicología y Psicopedagogía (CIPP), Pontificia Universidad Católica Argentina, Buenos Aires, Argentina
| | - Nicolás Toro-Urrego
- Institute of Cardiological Research, University of Buenos Aires, National Research Council (ININCA-UBA-CONICET), Buenos Aires, Argentina
| | - Carlos F Kusnier
- Institute of Cardiological Research, University of Buenos Aires, National Research Council (ININCA-UBA-CONICET), Buenos Aires, Argentina
| | - Rodolfo A Kölliker-Frers
- Institute of Cardiological Research, University of Buenos Aires, National Research Council (ININCA-UBA-CONICET), Buenos Aires, Argentina
| | - Ana B Ramos-Hryb
- Institute of Cardiological Research, University of Buenos Aires, National Research Council (ININCA-UBA-CONICET), Buenos Aires, Argentina
| | - Juan P Luaces
- Institute of Cardiological Research, University of Buenos Aires, National Research Council (ININCA-UBA-CONICET), Buenos Aires, Argentina
| | - Matilde Otero-Losada
- Institute of Cardiological Research, University of Buenos Aires, National Research Council (ININCA-UBA-CONICET), Buenos Aires, Argentina
| | - Francisco Capani
- Institute of Cardiological Research, University of Buenos Aires, National Research Council (ININCA-UBA-CONICET), Buenos Aires, Argentina.,Departamento de Biología, Universidad Argentina John F. Kennedy (UAJK), Buenos Aires, Argentina
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Holubiec MI, Galeano P, Romero JI, Hanschmann EM, Lillig CH, Capani F. Thioredoxin 1 Plays a Protective Role in Retinas Exposed to Perinatal Hypoxia-Ischemia. Neuroscience 2019; 425:235-250. [PMID: 31785355 DOI: 10.1016/j.neuroscience.2019.11.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Revised: 11/07/2019] [Accepted: 11/08/2019] [Indexed: 12/20/2022]
Abstract
Thioredoxin family proteins are key modulators of cellular redox regulation and have been linked to several physiological functions, including the cellular response to hypoxia-ischemia. During perinatal hypoxia-ischemia (PHI), the central nervous system is subjected to a fast decrease in O2 and nutrients with a subsequent reoxygenation that ultimately leads to the production of reactive species impairing physiological redox signaling. Particularly, the retina is one of the most affected tissues, due to its high oxygen consumption and exposure to light. One of the main consequences of PHI is retinopathy of prematurity, comprising changes in retinal neural and vascular development, with further compensatory mechanisms that can ultimately lead to retinal detachment and blindness. In this study, we have analyzed long-term changes that occur in the retina using two well established in vivo rat PHI models (perinatal asphyxia and carotid ligation model), as well as the ARPE-19 cell line that was exposed to hypoxia and reoxygenation. We observed significant changes in the protein levels of the cytosolic oxidoreductase thioredoxin 1 (Trx1) in both animal models and a cell model. Knock-down of Trx1 in ARPE-19 cells affected cell morphology, proliferation and the levels of specific differentiation markers. Administration of recombinant Trx1 decreased astrogliosis and improved delayed neurodevelopment in animals exposed to PHI. Taken together, our results suggest therapeutical implications for Trx1 in retinal damage induced by hypoxia-ischemia during birth.
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Affiliation(s)
- M I Holubiec
- Laboratorio de Citoarquitectura y Plasticidad Neuronal, Instituto de Investigaciones Cardiológicas "Prof. Dr. Alberto C. Taquini" (ININCA), Facultad de Medicina (UBA-CONICET), Buenos Aires, Argentina; Instituto de Investigaciones Bioquímicas de Buenos Aires (IIBBA-CONICET), Argentina.
| | - P Galeano
- Instituto de Investigaciones Bioquímicas de Buenos Aires (IIBBA-CONICET), Argentina
| | - J I Romero
- Instituto de Investigaciones Bioquímicas de Buenos Aires (IIBBA-CONICET), Argentina
| | - E-M Hanschmann
- Department of Neurology, Heinrich-Heine University Düsseldorf, Germany; Institute for Medical Biochemistry and Molecular Biology, University of Greifswald, Germany
| | - C H Lillig
- Institute for Medical Biochemistry and Molecular Biology, University of Greifswald, Germany
| | - F Capani
- Laboratorio de Citoarquitectura y Plasticidad Neuronal, Instituto de Investigaciones Cardiológicas "Prof. Dr. Alberto C. Taquini" (ININCA), Facultad de Medicina (UBA-CONICET), Buenos Aires, Argentina; Facultad de Medicina, Universidad Católica Argentina (UCA), Buenos Aires, Argentina; Universidad Autónoma de Chile, Santiago de Chile, Chile
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Niu N, Li Z, Zhu M, Sun H, Yang J, Xu S, Zhao W, Song R. Effects of nuclear respiratory factor‑1 on apoptosis and mitochondrial dysfunction induced by cobalt chloride in H9C2 cells. Mol Med Rep 2019; 19:2153-2163. [PMID: 30628711 PMCID: PMC6390059 DOI: 10.3892/mmr.2019.9839] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2017] [Accepted: 09/28/2018] [Indexed: 01/31/2023] Open
Abstract
Hypoxia-induced apoptosis occurs in various diseases. Cobalt chloride (CoCl2) is a hypoxia mimic agent that is frequently used in studies investigating the mechanisms of hypoxia. Nuclear respiratory factor-1 (NRF-1) is a transcription factor with an important role in the expression of mitochondrial respiratory and mitochondria-associated genes. However, few studies have evaluated the effects of NRF-1 on apoptosis, particularly with regard to damage caused by CoCl2. In the present study, the role of NRF-1 in mediating CoCl2-induced apoptosis was investigated using cell viability analysis, flow cytometry, fluorescence imaging, western blotting analysis, energy metabolism analysis and reverse transcription-quantitative polymerase chain reaction. The present results revealed that the apoptosis caused by CoCl2 could be alleviated by NRF-1. Furthermore, overexpression of NRF-1 increased the expression of B-cell lymphoma-2, hypoxia inducible factor-1α and NRF-2. Also, cell damage induced by CoCl2 may be associated with depolarization of mitochondrial membrane potential, and NRF-1 suppressed this effect. Notably, the oxygen consumption rate (OCR) was reduced in CoCl2-treated cells, whereas overexpression of NRF-1 enhanced the OCR, suggesting that NRF-1 had protective effects. In summary, the present study demonstrated that NRF-1 protected against CoCl2-induced apoptosis, potentially by strengthening mitochondrial function to resist CoCl2-induced damage to H9C2 cells. The results of the present study provide a possible way for the investigation of myocardial diseases.
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Affiliation(s)
- Nan Niu
- College of Basic Medicine, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region 750001, P.R. China
| | - Zihua Li
- School of Pharmacy, Tsinghua University, Beijing 100084, P.R. China
| | - Mingxing Zhu
- College of Basic Medicine, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region 750001, P.R. China
| | - Hongli Sun
- College of Basic Medicine, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region 750001, P.R. China
| | - Jihui Yang
- College of Basic Medicine, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region 750001, P.R. China
| | - Shimei Xu
- College of Basic Medicine, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region 750001, P.R. China
| | - Wei Zhao
- College of Basic Medicine, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region 750001, P.R. China
| | - Rong Song
- Department of Critical Care Medicine, The Fifth Hospital of the Chinese People's Liberation Army, Yinchuan, Ningxia Hui Autonomous Region 750001, P.R. China
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Holubiec MI, Romero JI, Suárez J, Portavella M, Fernández-Espejo E, Blanco E, Galeano P, de Fonseca FR. Palmitoylethanolamide prevents neuroinflammation, reduces astrogliosis and preserves recognition and spatial memory following induction of neonatal anoxia-ischemia. Psychopharmacology (Berl) 2018; 235:2929-2945. [PMID: 30058012 DOI: 10.1007/s00213-018-4982-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Accepted: 07/23/2018] [Indexed: 11/27/2022]
Abstract
RATIONAL Neonatal anoxia-ischemia (AI) particularly affects the central nervous system. Despite the many treatments that have been tested, none of them has proven to be completely successful. Palmitoylethanolamide (PEA) and oleoylethanolamide (OEA) are acylethanolamides that do not bind to CB1 or CB2 receptors and thus they do not present cannabinoid activity. These molecules are agonist compounds of peroxisome proliferator-activator receptor alpha (PPARα), which modulates the expression of different genes that are related to glucose and lipid metabolism, inflammation, differentiation and proliferation. OBJECTIVE In the present study, we analyzed the effects that the administration of PEA or OEA, after a neonatal AI event, has over different areas of the hippocampus. METHODS To this end, 7-day-old rats were subjected to AI and then treated with vehicle, OEA (2 or 10 mg/kg) or PEA (2 or 10 mg/kg). At 30 days of age, animals were subjected to behavioral tests followed by immunohistochemical studies. RESULTS Results showed that neonatal AI was associated with decreased locomotion, as well as recognition and spatial memory impairments. Furthermore, these deficits were accompanied with enhanced neuroinflammation and astrogliosis, as well as a decreased PPARα expression. PEA treatment was able to prevent neuroinflammation, reduce astrogliosis and preserve cognitive functions. CONCLUSIONS These results indicate that the acylethanolamide PEA may play an important role in the mechanisms underlying neonatal AI, and it could be a good candidate for further studies regarding neonatal AI treatments.
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Affiliation(s)
- Mariana I Holubiec
- Unidad de Gestión Clínica de Salud Mental, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Regional Universitario de Málaga, Avenida Carlos Haya 82, 29010, Málaga, Spain
- Instituto de Investigaciones Bioquímicas de Buenos Aires (IIBBA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Av. Patricias Argentinas 435, C1405BWE, Ciudad Autónoma de Buenos Aires, Argentina
| | - Juan I Romero
- Unidad de Gestión Clínica de Salud Mental, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Regional Universitario de Málaga, Avenida Carlos Haya 82, 29010, Málaga, Spain
- Instituto de Investigaciones Bioquímicas de Buenos Aires (IIBBA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Av. Patricias Argentinas 435, C1405BWE, Ciudad Autónoma de Buenos Aires, Argentina
| | - Juan Suárez
- Unidad de Gestión Clínica de Salud Mental, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Regional Universitario de Málaga, Avenida Carlos Haya 82, 29010, Málaga, Spain
| | - Manuel Portavella
- Laboratorio de Conducta Animal y Neurociencia, Departamento de Psicología Experimental, Facultad de Psicología, Universidad de Sevilla, C/Camilo José Cela s/n, 41018, Sevilla, Spain
| | - Emilio Fernández-Espejo
- Laboratorio de Neurofisiología y Neurología Molecular, Departamento de Fisiología Médica y Biofísica, Facultad de Medicina, Universidad de Sevilla, Av. Sánchez Pizjuán 4, 41009, Sevilla, Spain
| | - Eduardo Blanco
- Lleida Institute for Biomedical Research, Dr. Pifarré Foundation (IRBLleida), University of Lleida, Av. Alcalde Rovira Roure 80, 25198, Lleida, Spain
| | - Pablo Galeano
- Unidad de Gestión Clínica de Salud Mental, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Regional Universitario de Málaga, Avenida Carlos Haya 82, 29010, Málaga, Spain.
- Instituto de Investigaciones Bioquímicas de Buenos Aires (IIBBA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Av. Patricias Argentinas 435, C1405BWE, Ciudad Autónoma de Buenos Aires, Argentina.
| | - Fernando Rodríguez de Fonseca
- Unidad de Gestión Clínica de Salud Mental, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Regional Universitario de Málaga, Avenida Carlos Haya 82, 29010, Málaga, Spain.
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