Tyrosine hydroxylase regulation in adult rat striatum following short-term neonatal exposure to manganese

Article


Peres, Tanara V., Ong, Lin K., Costa, Ana Paula, Eyng, Helena, Venske, De´bora K. R., Colle, Dirleise, Gonçalves, Filipe M., Lopes, Mark W., Farina, Marcelo, Aschner, Michael, Dickson, Phillip W., Dunkley, Peter R. and Leal, Rodrigo B.. 2016. "Tyrosine hydroxylase regulation in adult rat striatum following short-term neonatal exposure to manganese." Metallomics: integrated biometal science. 8 (6), pp. 597-604. https://doi.org/10.1039/c5mt00265f
Article Title

Tyrosine hydroxylase regulation in adult rat striatum following short-term neonatal exposure to manganese

ERA Journal ID40360
Article CategoryArticle
AuthorsPeres, Tanara V., Ong, Lin K., Costa, Ana Paula, Eyng, Helena, Venske, De´bora K. R., Colle, Dirleise, Gonçalves, Filipe M., Lopes, Mark W., Farina, Marcelo, Aschner, Michael, Dickson, Phillip W., Dunkley, Peter R. and Leal, Rodrigo B.
Journal TitleMetallomics: integrated biometal science
Journal Citation8 (6), pp. 597-604
Number of Pages8
Year2016
Place of PublicationUnited Kingdom
ISSN1756-5901
1756-591X
Digital Object Identifier (DOI)https://doi.org/10.1039/c5mt00265f
Web Address (URL)https://academic.oup.com/metallomics/article/8/6/597/6013065
Abstract

Manganese (Mn) is an essential trace element required for a range of physiological processes, but Mn can also be neurotoxic especially during development. Excess levels of Mn accumulate preferentially in the striatum and can induce a syndrome called manganism, characterized by an initial stage of psychiatric disorder followed by motor impairment. In the present study, we investigated the effects of Mn exposure on the developing dopaminergic system, specifically tyrosine hydroxylase (TH) protein and phosphorylation levels in the striatum of rats. Neonatal rats were exposed to Mn intraperitoneally (ip) from post-natal day 8 up to day 12 (PND8-12). Striatal tissue was analysed on PND14 or PND70, to detect either short-term or long-term effects induced by Mn exposure. There was a dose dependent increase in TH protein levels in the striatum at PND14, reaching significance at 20 mg kg-1 Mn, and this correlated with an increase in TH phosphorylation at serines 40, 31 and 19. However, in the striatum at PND70, a time by which Mn levels were no longer elevated, there was a dose dependent decrease in TH protein levels, reaching significance at 20 mg kg-1 Mn, and this correlated with TH phosphorylation at Ser40 and Ser19. There was however a significant increase in phosphorylation of TH at serine 31 at 20 mg kg-1 Mn, which did not correlate with TH protein levels. Taken together our findings suggest that neonatal Mn exposure can have both short-term and long-term effects on the regulation of TH in the striatal dopaminergic system

KeywordsAmino acids; Phosphorylation; Proteins; Rats; Trace elements
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Byline AffiliationsFederal University of Santa Catarina, Brazil
Albert Einstein College of Medicine, United States
University of Newcastle
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Increased microglial activation in the rat brain following neonatal exposure to a bacterial mimetic
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The effects of footshock and immobilization stress on tyrosine hydroxylase phosphorylation in the rat locus coeruleus and adrenal gland
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