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Caputo MP, Radlowski EC, Lawson M, Antonson A, Watson JE, Matt SM, Leyshon BJ, Das A, Johnson RW. Herring roe oil supplementation alters microglial cell gene expression and reduces peripheral inflammation after immune activation in a neonatal piglet model. Brain Behav Immun 2019; 81:455-469. [PMID: 31271868 PMCID: PMC6754775 DOI: 10.1016/j.bbi.2019.06.046] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Revised: 06/20/2019] [Accepted: 06/29/2019] [Indexed: 01/29/2023] Open
Abstract
Neonatal brain development can be disrupted by infection that results in microglial cell activation and neuroinflammation. Studies indicate that polyunsaturated fatty acids (PUFAs) and their metabolites can resolve inflammation. It is not known if dietary PUFA increases lipid metabolites in brain or reduces neuroinflammation in neonates. We hypothesized that dietary PUFAs might suppress neuroinflammation by inhibiting pro-inflammatory cytokine over-production and promoting inflammatory resolution in the periphery and brain. Piglets were obtained on postnatal day (PD) 2 and randomly assigned to herring roe oil (HRO) or control (CON) diet. HRO was included at 2 g/kg powdered diet. HRO increased DHA levels in occipital lobe and the DHA to arachidonic acid (ARA) ratio in hippocampal tissue. HRO decreased ARA metabolites in occipital lobe. HRO failed to attenuate microglial pro-inflammatory cytokine production ex vivo. HRO did not affect fever or circulating resolvin D1 levels. HRO decreased circulating neutrophils and liver inflammatory gene expression, but increased resolution marker gene expression in liver post LPS. HRO upregulated CXCL16, TGFBR1, and C1QA in microglial cells. HRO supplementation exerted beneficial effects on inflammation in the periphery, but further studies are needed to evaluate the specific effects of omega-3 supplementation on microglial cell physiology in the neonate.
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Affiliation(s)
- Megan P. Caputo
- Division of Nutritional Sciences, University of Illinois at Urbana-Champaign, 449 Bevier Hall, 905 South Goodwin Ave, Urbana, IL, 61802 USA,Department of Animal Sciences, University of Illinois at Urbana-Champaign, 1207 West Gregory Dr., Urbana, IL, 61802 USA,Veterinary Medical Scholars Program, Office of Research and Advanced Studies, University of Illinois at Urbana-Champaign, College of Veterinary Medicine, 3505 VMBSB, 2001 South Lincoln Ave, Urbana, IL, 61802 USA
| | - Emily C. Radlowski
- Division of Nutritional Sciences, University of Illinois at Urbana-Champaign, 449 Bevier Hall, 905 South Goodwin Ave, Urbana, IL, 61802 USA,Department of Animal Sciences, University of Illinois at Urbana-Champaign, 1207 West Gregory Dr., Urbana, IL, 61802 USA
| | - Marcus Lawson
- Department of Animal Sciences, University of Illinois at Urbana-Champaign, 1207 West Gregory Dr., Urbana, IL, 61802 USA
| | - Adrienne Antonson
- Department of Animal Sciences, University of Illinois at Urbana-Champaign, 1207 West Gregory Dr., Urbana, IL, 61802 USA
| | - Josephine E. Watson
- Department of Biochemistry, School of Molecular & Cellular Biology, University of Illinois at Urbana-Champaign, 393 Morrill Hall, 505 South Goodwin Ave, Urbana, IL, 61802 USA
| | - Stephanie M. Matt
- Neuroscience Program, University of Illinois at Urbana-Champaign, 2325/21 Beckman Institute, 405 North Matthews Ave, Urbana, IL, 61801 USA
| | - Brian J. Leyshon
- Division of Nutritional Sciences, University of Illinois at Urbana-Champaign, 449 Bevier Hall, 905 South Goodwin Ave, Urbana, IL, 61802 USA,Department of Animal Sciences, University of Illinois at Urbana-Champaign, 1207 West Gregory Dr., Urbana, IL, 61802 USA
| | - Aditi Das
- Division of Nutritional Sciences, University of Illinois at Urbana-Champaign, 449 Bevier Hall, 905 South Goodwin Ave, Urbana, IL 61802, USA; Department of Biochemistry, School of Molecular & Cellular Biology, University of Illinois at Urbana-Champaign, 393 Morrill Hall, 505 South Goodwin Ave, Urbana, IL 61802, USA; Department of Comparative Biosciences, University of Illinois at Urbana-Champaign, 3516 VMBSB, 2001 South Lincoln Ave, Urbana, IL 61802, USA; Neuroscience Program, University of Illinois at Urbana-Champaign, 2325/21 Beckman Institute, 405 North Matthews Ave, Urbana, IL 61801, USA; Bioengineering Department, University of Illinois at Urbana-Champaign, 1102 Everitt Lab, MC-278, 1406 West Green St., Urbana, IL 61801, USA; Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, 405 North Matthews Ave, M/C 251, Urbana, IL 61801, USA.
| | - Rodney W. Johnson
- Division of Nutritional Sciences, University of Illinois at Urbana-Champaign, 449 Bevier Hall, 905 South Goodwin Ave, Urbana, IL, 61802 USA,Department of Animal Sciences, University of Illinois at Urbana-Champaign, 1207 West Gregory Dr., Urbana, IL, 61802 USA,Neuroscience Program, University of Illinois at Urbana-Champaign, 2325/21 Beckman Institute, 405 North Matthews Ave, Urbana, IL, 61801 USA
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