Early life peripheral lipopolysaccharide challenge reprograms catecholaminergic neurons

Article


Ong, Lin Kooi, Fuller, Erin A., Sominsky, Luba, Hodgson, Deborah M., Dunkley, Peter R. and Dickson, Phillip W.. 2017. "Early life peripheral lipopolysaccharide challenge reprograms catecholaminergic neurons." Scientific Reports. 7, pp. 1-6. https://doi.org/10.1038/srep40475
Article Title

Early life peripheral lipopolysaccharide challenge reprograms catecholaminergic neurons

ERA Journal ID201487
Article CategoryArticle
AuthorsOng, Lin Kooi, Fuller, Erin A., Sominsky, Luba, Hodgson, Deborah M., Dunkley, Peter R. and Dickson, Phillip W.
Journal TitleScientific Reports
Journal Citation7, pp. 1-6
Article Number40475
Number of Pages6
Year10 Jan 2017
PublisherNature Publishing Group
Place of PublicationUnited Kingdom
ISSN2045-2322
Digital Object Identifier (DOI)https://doi.org/10.1038/srep40475
Web Address (URL)https://www.nature.com/articles/srep40475
Abstract

Neonatal immune challenge with the bacterial mimetic lipopolysaccharide has the capacity to generate long-term changes in the brain. Neonatal rats were intraperitoneally injected with lipopolysaccharide (0.05 mg/kg) on postnatal day (PND) 3 and again on PND 5. The activation state of tyrosine hydroxylase (TH) was measured in the locus coeruleus, ventral tegmental area and substantia nigra on PND 85. In the locus coeruleus there was an approximately four-fold increase in TH activity. This was accompanied by a significant increase in TH protein together with increased phosphorylation of all three serine residues in the N-terminal region of TH. In the ventral tegmental area, a significant increase in TH activity and increased phosphorylation of the serine 40 residue was seen. Neonatal lipopolysaccharide had no effect on TH activation in the substantia nigra. These results indicate the capacity of a neonatal immune challenge to generate long-term changes in the activation state of TH, in particular in the locus coeruleus. Overall, the current results demonstrate the enduring outcomes of a neonatal immune challenge on specific brain catecholaminergic regions associated with catecholamine synthesis. This highlights a novel mechanism for long-term physiological and behavioural alterations induced by this model.

Keywordsanimal; drug effect; locus ceruleus; metabolism; nerve cell; newborn; phosphorylation; substantia nigra; ventral tegmentum; Wistar rat
Byline AffiliationsUniversity of Newcastle
Royal Melbourne Institute of Technology (RMIT)
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Ong, L. K., Guan, L., Stutz, B., Dickson, P. W., Dunkley, P. R. and Bobrovskaya, L.. 2011. "The effects of footshock and immobilization stress on tyrosine hydroxylase phosphorylation in the rat locus coeruleus and adrenal gland." Neuroscience. 192, pp. 20-27. https://doi.org/10.1016/j.neuroscience.2011.06.087
Epigenetic Inheritance of Anxiety-Like Behaviour in Rats - Role of Early Life Exposure to a Bacterial Mimetic
Sominsky, L., Walker, A. K., Ong, L., Tynan, R. J., Walker, F. R. and Hodgson, D. M.. 2011. "Epigenetic Inheritance of Anxiety-Like Behaviour in Rats - Role of Early Life Exposure to a Bacterial Mimetic." Journal of Developmental Origins of Health and Disease. 2, pp. S109-S109.
Neonatal respiratory infection and adult re-infection: Effect on glucocorticoid and mineralocorticoid receptors in the hippocampus in BALB/c mice
Wynne, O., Horvat, J. C., Kim, R. Y., Ong, L. K., Smith, R., Hansbro, P. M., Clifton, V. L. and Hodgson, D. M.. 2011. "Neonatal respiratory infection and adult re-infection: Effect on glucocorticoid and mineralocorticoid receptors in the hippocampus in BALB/c mice." Brain, Behavior, and Immunity. 25 (6), pp. 1214-1222. https://doi.org/10.1016/j.bbi.2011.03.014
Sustained Phosphorylation of Tyrosine Hydroxylase at Serine 40 in VIVO
Ong, L. K., Sominsky, L., Walker, A. K., Hodgson, D. M., Goodchild, A. K., Bobrovskaya, L., Dickson, P. W. and Dunkley, P. R.. 2011. "Sustained Phosphorylation of Tyrosine Hydroxylase at Serine 40 in VIVO." 23rd Biennial Meeting of the International Society for Neurochemistry (2011). Athen, Greece 28 Aug - 01 Sep 2011 United Kingdom.
The Effect of Social Defeat on Tyrosine Hydroxylase Phosphorylation in the Rat Brain and Adrenal Gland
Ong, Lin Kooi, Bobrovskaya, Larisa, Walker, Frederick R., Day, Trevor A., Dickson, Phillip W. and Dunkley, Peter R.. 2011. "The Effect of Social Defeat on Tyrosine Hydroxylase Phosphorylation in the Rat Brain and Adrenal Gland." Neurochemical Research. 36 (1), pp. 27-33. https://doi.org/10.1007/s11064-010-0255-7
Tyrosine hydroxylase phosphorylation in response to footshock and restraint stress
Ong, L., Guan, L., Stutz, B., Dickson, P., Dunkley, P. and Bobrovskaya, L.. 2010. "Tyrosine hydroxylase phosphorylation in response to footshock and restraint stress." Journal of Neurochemistry. 115, pp. 77-77.
Signal transduction pathways and tyrosine hydroxylase regulation in the adrenal medulla following glucoprivation: An in vivo analysis
Bobrovskaya, Larisa, Damanhuri, Hanafi A., Ong, Lin Kooi, Schneider, Jennifer J., Dickson, Phillip W., Dunkley, Peter R. and Goodchild, Ann K.. 2010. "Signal transduction pathways and tyrosine hydroxylase regulation in the adrenal medulla following glucoprivation: An in vivo analysis." Neurochemistry International: the journal for the publication of cellular and molecular aspects of neurochemistry. 57 (2), pp. 162-167. https://doi.org/10.1016/j.neuint.2010.05.009
The effect of social conflict on tyrosine hydroxylase phosphorylation in catecholamine-producing cells from sprague-dawley rats
Ong, L., Bobrovskaya, L., Walker, F., Day, Trevor, Dickson, P. and Dunkley, P.. 2009. "The effect of social conflict on tyrosine hydroxylase phosphorylation in catecholamine-producing cells from sprague-dawley rats." 22nd Biennial Meeting of the International Society for Neurochemistry & Asian Pacific Society for Neurochemistry (2009). South Korea 23 - 29 Aug 2009 United Kingdom.
Cross-neutralisation of Australian brown and tiger snake venoms with commercial antivenoms: Cross-reactivity or antivenom mixtures?
O’Leary, Margaret A., Schneider, Jennifer J., Prakash Krishnan, Brian, Lavis, Christopher, McKendry, Amy, Ong, Lin Kooi and Isbister, Geoffrey K.. 2007. "Cross-neutralisation of Australian brown and tiger snake venoms with commercial antivenoms: Cross-reactivity or antivenom mixtures?" Toxicon. 50 (2), pp. 206-213. https://doi.org/10.1016/j.toxicon.2007.03.014