Immune response of the Antarctic sea urchin Sterechinus neumayeri: cellular, molecular and physiological approach
International audience In the Antarctic marine environment, the water temperature is usually between 2 and - 1.9 degrees C. Consequently, some Antarctic species have lost the capacity to adapt to sudden changes in temperature. The study of the immune response in Antarctic sea urchin (Sterechinus neu...
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ftunimontpellier:oai:HAL:hal-04200625v1 2024-05-19T07:29:01+00:00 Immune response of the Antarctic sea urchin Sterechinus neumayeri: cellular, molecular and physiological approach Gonzalez-Aravena, Marcelo Perez-Troncoso, Carolina Urtubia, Rocio Branco, Paola Machado Cunha da Silva, Jose Roberto Mercado, Luis de Lorgeril, Julien Bethke, Jorn Paschke, Kurt Interactions Hôtes-Pathogènes-Environnements (IHPE) Université de Perpignan Via Domitia (UPVD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM) 2015-06 https://hal.science/hal-04200625 https://hal.science/hal-04200625/document https://hal.science/hal-04200625/file/Gonzalez-2015-ImmuneResponse-MANUSCRIT.pdf https://doi.org/10.15517/rbt.v63i2.23165 en eng HAL CCSD Universidad de Costa Rica info:eu-repo/semantics/altIdentifier/doi/10.15517/rbt.v63i2.23165 hal-04200625 https://hal.science/hal-04200625 https://hal.science/hal-04200625/document https://hal.science/hal-04200625/file/Gonzalez-2015-ImmuneResponse-MANUSCRIT.pdf doi:10.15517/rbt.v63i2.23165 info:eu-repo/semantics/OpenAccess ISSN: 0034-7744 Revista de Biología Tropical https://hal.science/hal-04200625 Revista de Biología Tropical, 2015, 63 (Suppl.2), pp.309-320. ⟨10.15517/rbt.v63i2.23165⟩ [SDV]Life Sciences [q-bio] info:eu-repo/semantics/article Journal articles 2015 ftunimontpellier https://doi.org/10.15517/rbt.v63i2.23165 2024-05-01T00:23:28Z International audience In the Antarctic marine environment, the water temperature is usually between 2 and - 1.9 degrees C. Consequently, some Antarctic species have lost the capacity to adapt to sudden changes in temperature. The study of the immune response in Antarctic sea urchin (Sterechinus neumayeri) could help us understand the future impacts of global warming on endemic animals in the Antarctic Peninsula. In this study, the Antarctic sea urchins were challenged with lipopolysaccharides and Vibrio alginolitycus. The cellular response was evaluated by the number of coelomocytes and phagocytosis. A significant increase was observed in red sphere cells and total coelomocytes in animals exposed to LPS. A significant rise in phagocytosis in animals stimulated by LPS was also evidenced. Moreover, the gene expression of three immune related genes was measured by qPCR, showing a rapid increase in their expression levels. By contrast, these immune genes showed a depression in their expression by a thermal effect at 5 and 10 degrees C. In addition, during bacterial injection, the oxygen consumption was higher in challenged animals. Our results showed that the immune response in the Antarctic sea urchin may be affected by acute thermal stress and that this immune response has a metabolic cost. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Université de Montpellier: HAL |
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Université de Montpellier: HAL |
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English |
topic |
[SDV]Life Sciences [q-bio] |
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[SDV]Life Sciences [q-bio] Gonzalez-Aravena, Marcelo Perez-Troncoso, Carolina Urtubia, Rocio Branco, Paola Machado Cunha da Silva, Jose Roberto Mercado, Luis de Lorgeril, Julien Bethke, Jorn Paschke, Kurt Immune response of the Antarctic sea urchin Sterechinus neumayeri: cellular, molecular and physiological approach |
topic_facet |
[SDV]Life Sciences [q-bio] |
description |
International audience In the Antarctic marine environment, the water temperature is usually between 2 and - 1.9 degrees C. Consequently, some Antarctic species have lost the capacity to adapt to sudden changes in temperature. The study of the immune response in Antarctic sea urchin (Sterechinus neumayeri) could help us understand the future impacts of global warming on endemic animals in the Antarctic Peninsula. In this study, the Antarctic sea urchins were challenged with lipopolysaccharides and Vibrio alginolitycus. The cellular response was evaluated by the number of coelomocytes and phagocytosis. A significant increase was observed in red sphere cells and total coelomocytes in animals exposed to LPS. A significant rise in phagocytosis in animals stimulated by LPS was also evidenced. Moreover, the gene expression of three immune related genes was measured by qPCR, showing a rapid increase in their expression levels. By contrast, these immune genes showed a depression in their expression by a thermal effect at 5 and 10 degrees C. In addition, during bacterial injection, the oxygen consumption was higher in challenged animals. Our results showed that the immune response in the Antarctic sea urchin may be affected by acute thermal stress and that this immune response has a metabolic cost. |
author2 |
Interactions Hôtes-Pathogènes-Environnements (IHPE) Université de Perpignan Via Domitia (UPVD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM) |
format |
Article in Journal/Newspaper |
author |
Gonzalez-Aravena, Marcelo Perez-Troncoso, Carolina Urtubia, Rocio Branco, Paola Machado Cunha da Silva, Jose Roberto Mercado, Luis de Lorgeril, Julien Bethke, Jorn Paschke, Kurt |
author_facet |
Gonzalez-Aravena, Marcelo Perez-Troncoso, Carolina Urtubia, Rocio Branco, Paola Machado Cunha da Silva, Jose Roberto Mercado, Luis de Lorgeril, Julien Bethke, Jorn Paschke, Kurt |
author_sort |
Gonzalez-Aravena, Marcelo |
title |
Immune response of the Antarctic sea urchin Sterechinus neumayeri: cellular, molecular and physiological approach |
title_short |
Immune response of the Antarctic sea urchin Sterechinus neumayeri: cellular, molecular and physiological approach |
title_full |
Immune response of the Antarctic sea urchin Sterechinus neumayeri: cellular, molecular and physiological approach |
title_fullStr |
Immune response of the Antarctic sea urchin Sterechinus neumayeri: cellular, molecular and physiological approach |
title_full_unstemmed |
Immune response of the Antarctic sea urchin Sterechinus neumayeri: cellular, molecular and physiological approach |
title_sort |
immune response of the antarctic sea urchin sterechinus neumayeri: cellular, molecular and physiological approach |
publisher |
HAL CCSD |
publishDate |
2015 |
url |
https://hal.science/hal-04200625 https://hal.science/hal-04200625/document https://hal.science/hal-04200625/file/Gonzalez-2015-ImmuneResponse-MANUSCRIT.pdf https://doi.org/10.15517/rbt.v63i2.23165 |
genre |
Antarc* Antarctic Antarctic Peninsula |
genre_facet |
Antarc* Antarctic Antarctic Peninsula |
op_source |
ISSN: 0034-7744 Revista de Biología Tropical https://hal.science/hal-04200625 Revista de Biología Tropical, 2015, 63 (Suppl.2), pp.309-320. ⟨10.15517/rbt.v63i2.23165⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.15517/rbt.v63i2.23165 hal-04200625 https://hal.science/hal-04200625 https://hal.science/hal-04200625/document https://hal.science/hal-04200625/file/Gonzalez-2015-ImmuneResponse-MANUSCRIT.pdf doi:10.15517/rbt.v63i2.23165 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.15517/rbt.v63i2.23165 |
_version_ |
1799477106503057408 |