The Recombinant Human Erythropoietin Administered in Neonatal Rats After Excitotoxic Damage Induces Molecular Changes in the Hippocampus
In vitro and in vivo experimental evidence has contributed important knowledge regarding the antiapoptotic effect mediated by EPO signaling in the damaged brain, particularly through different models with a hypoxic component. However, little emphasis has been placed on the effectiveness of rhEPO adm...
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| Format: | Article |
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Frontiers Media S.A.
2019-02-01
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| Series: | Frontiers in Neuroscience |
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| Online Access: | https://www.frontiersin.org/article/10.3389/fnins.2019.00118/full |
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| author | Martha Catalina Rivera-Cervantes José Jaime Jarero-Basulto Justo Murguía-Castillo Alejandra Guadalupe Marín-López Yadira Gasca-Martínez Sergio Cornelio-Martínez Carlos Beas-Zárate |
| author_facet | Martha Catalina Rivera-Cervantes José Jaime Jarero-Basulto Justo Murguía-Castillo Alejandra Guadalupe Marín-López Yadira Gasca-Martínez Sergio Cornelio-Martínez Carlos Beas-Zárate |
| author_sort | Martha Catalina Rivera-Cervantes |
| collection | DOAJ |
| description | In vitro and in vivo experimental evidence has contributed important knowledge regarding the antiapoptotic effect mediated by EPO signaling in the damaged brain, particularly through different models with a hypoxic component. However, little emphasis has been placed on the effectiveness of rhEPO administration against cellular alterations caused by in vivo excitotoxicity or on the molecular mechanism that regulates this effect. In this study, we investigated the effects of a single dose of rhEPO on hippocampal damage induced by subcutaneous application of monosodium glutamate (MSG) on postnatal days 1, 3, 5 and 7 in neonatal rats. We found that a dose of 1000 IU/kg of b.w. administered 24 h after MSG had the greatest protective effect. In addition, we analyzed changes in gene expression, particularly in 3 key molecules involved in EPO-mediated signaling (EPO, EPOR and βcR). We observed that the expression of EPO and EPOR was differentially modified at both the mRNA and protein levels under the evaluated conditions, while the expression of the βcR gene was substantially increased. Our data suggest that a low dose of rhEPO is sufficient to induce cellular protection under these experimental conditions and that the molecular changes could be a positive feedback mechanism, mediated by reactive astrocytes in association with in vivo neuroprotective mechanisms. |
| first_indexed | 2024-12-21T20:14:29Z |
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| id | doaj.art-4960b91cb1a94f319637f7c2d1cb3cd3 |
| institution | Directory Open Access Journal |
| issn | 1662-453X |
| language | English |
| last_indexed | 2024-12-21T20:14:29Z |
| publishDate | 2019-02-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Neuroscience |
| spelling | doaj.art-4960b91cb1a94f319637f7c2d1cb3cd32022-12-21T18:51:40ZengFrontiers Media S.A.Frontiers in Neuroscience1662-453X2019-02-011310.3389/fnins.2019.00118437044The Recombinant Human Erythropoietin Administered in Neonatal Rats After Excitotoxic Damage Induces Molecular Changes in the HippocampusMartha Catalina Rivera-Cervantes0José Jaime Jarero-Basulto1Justo Murguía-Castillo2Alejandra Guadalupe Marín-López3Yadira Gasca-Martínez4Sergio Cornelio-Martínez5Carlos Beas-Zárate6Cellular Neurobiology Laboratory, Department of Cellular and Molecular Biology, CUCBA, University of Guadalajara, Zapopan, MexicoCellular Neurobiology Laboratory, Department of Cellular and Molecular Biology, CUCBA, University of Guadalajara, Zapopan, MexicoCellular Neurobiology Laboratory, Department of Cellular and Molecular Biology, CUCBA, University of Guadalajara, Zapopan, MexicoCellular Neurobiology Laboratory, Department of Cellular and Molecular Biology, CUCBA, University of Guadalajara, Zapopan, MexicoCellular Neurobiology Laboratory, Department of Cellular and Molecular Biology, CUCBA, University of Guadalajara, Zapopan, MexicoRegeneration and Neural Development Laboratory, Department of Cellular and Molecular Biology, CUCBA, University of Guadalajara, Zapopan, MexicoRegeneration and Neural Development Laboratory, Department of Cellular and Molecular Biology, CUCBA, University of Guadalajara, Zapopan, MexicoIn vitro and in vivo experimental evidence has contributed important knowledge regarding the antiapoptotic effect mediated by EPO signaling in the damaged brain, particularly through different models with a hypoxic component. However, little emphasis has been placed on the effectiveness of rhEPO administration against cellular alterations caused by in vivo excitotoxicity or on the molecular mechanism that regulates this effect. In this study, we investigated the effects of a single dose of rhEPO on hippocampal damage induced by subcutaneous application of monosodium glutamate (MSG) on postnatal days 1, 3, 5 and 7 in neonatal rats. We found that a dose of 1000 IU/kg of b.w. administered 24 h after MSG had the greatest protective effect. In addition, we analyzed changes in gene expression, particularly in 3 key molecules involved in EPO-mediated signaling (EPO, EPOR and βcR). We observed that the expression of EPO and EPOR was differentially modified at both the mRNA and protein levels under the evaluated conditions, while the expression of the βcR gene was substantially increased. Our data suggest that a low dose of rhEPO is sufficient to induce cellular protection under these experimental conditions and that the molecular changes could be a positive feedback mechanism, mediated by reactive astrocytes in association with in vivo neuroprotective mechanisms.https://www.frontiersin.org/article/10.3389/fnins.2019.00118/fullmonosodium glutamateerythropoietinerythropoietin receptorbeta common receptorrecombinant human EPOexcitotoxicity |
| spellingShingle | Martha Catalina Rivera-Cervantes José Jaime Jarero-Basulto Justo Murguía-Castillo Alejandra Guadalupe Marín-López Yadira Gasca-Martínez Sergio Cornelio-Martínez Carlos Beas-Zárate The Recombinant Human Erythropoietin Administered in Neonatal Rats After Excitotoxic Damage Induces Molecular Changes in the Hippocampus Frontiers in Neuroscience monosodium glutamate erythropoietin erythropoietin receptor beta common receptor recombinant human EPO excitotoxicity |
| title | The Recombinant Human Erythropoietin Administered in Neonatal Rats After Excitotoxic Damage Induces Molecular Changes in the Hippocampus |
| title_full | The Recombinant Human Erythropoietin Administered in Neonatal Rats After Excitotoxic Damage Induces Molecular Changes in the Hippocampus |
| title_fullStr | The Recombinant Human Erythropoietin Administered in Neonatal Rats After Excitotoxic Damage Induces Molecular Changes in the Hippocampus |
| title_full_unstemmed | The Recombinant Human Erythropoietin Administered in Neonatal Rats After Excitotoxic Damage Induces Molecular Changes in the Hippocampus |
| title_short | The Recombinant Human Erythropoietin Administered in Neonatal Rats After Excitotoxic Damage Induces Molecular Changes in the Hippocampus |
| title_sort | recombinant human erythropoietin administered in neonatal rats after excitotoxic damage induces molecular changes in the hippocampus |
| topic | monosodium glutamate erythropoietin erythropoietin receptor beta common receptor recombinant human EPO excitotoxicity |
| url | https://www.frontiersin.org/article/10.3389/fnins.2019.00118/full |
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