Abstract
Background
There is evidence of increased systemic expression of active GSK3B in Alzheimer’s disease patients, which apparently is associated with the formation of senile plaques and neurofibrillary tangles. Due to its central role in the pathogenesis of AD, GSK3B is currently a promising target of the pharmaceutical industry. Whilst trials with specific GSK inhibitors in AD are under way, major attention has been focused on the neuroprotective effects of lithium. Whereas the direct and indirect inhibitory effects of lithium over GSK3 activity have been documented by several groups, its effects over Gsk3 transcription have not yet been addressed.
Methods
We used quantitative PCR to evaluate the transcriptional regulation of Gsk3a and Gsk3b in lithium-treated primary cultures of rat cortical and hippocampal neurons.
Results
We found a significant and dose-dependent reduction in the expression of Gsk3b, which was specific to hippocampal cells. This same effect was further confirmed in vivo by measuring Gsk3 expression in different brain regions and in peripheral leukocytes of adult rats treated with lithium.
Conclusion
Our studies show that LiCl can modulate Gsk3b transcription in vitro and in vivo. This observation suggest new regulatory effects of lithium over Gsk3b, contributing to the better understanding of its mechanisms of action, offering a new and complementary explanation for Gsk3b modulation and reinforcing its potential for the inhibition of key pathological pathways in Alzheimer’s disease.
Similar content being viewed by others
References
Aplin AE, Gibb GM, Jacobsen JS, Gallo JM, Anderton BH (1996) In vitro phosphorylation of the cytoplasmic domain of the amyloid precursor protein by glycogen synthase kinase-3beta. J Neurochem 67:699–707
Bhat RV, Budd Haeberlein SL, Avila J (2004) Glycogen synthase kinase 3: a drug target for CNS therapies. J Neurochem 89:1313–1317
Cade JF (1949) Lithium salts in the treatment of psychotic excitement. Med J Aust 2:349–352
Chalecka-Franaszek E, Chuang DM (1999) Lithium activates the serine/threonine kinase Akt-1 and suppresses glutamate-induced inhibition of Akt-1 activity in neurons. Proc Natl Acad Sci USA 96:8745–8750
Chomczynski P, Sacchi N (1987) Single-step method of RNA isolation by acid guanidinium thiocyanate-phenol-chloroform extraction. Anal Biochem 162:156–159
De Sarno P, Li X, Jope RS (2002) Regulation of Akt and glycogen synthase kinase-3 beta phosphorylation by sodium valproate and lithium. Neuropharmacology 43:1158–1164
De Strooper B, Woodgett J (2003) Alzheimer’s disease: mental plaque removal. Nature 423:392–393
Frame S, Cohen P (2001) GSK3 takes centre stage more than 20 years after its discovery. Biochem J 359:1–16
Gould TD, Quiroz JA, Singh J, Zarate CA, Manji HK (2004) Emerging experimental therapeutics for bipolar disorder: insights from the molecular and cellular actions of current mood stabilizers. Mol Psychiatry 9:734–755
Guan RJ, Khatra BS, Cohlberg JA (1991) Phosphorylation of bovine neurofilament proteins by protein kinase FA (glycogen synthase kinase 3). J Biol Chem 266:8262–8267
Hernández F, Borrell J, Guaza C, Avila J, Lucas JJ (2002) Spatial learning deficit in transgenic mice that conditionally over-express GSK-3beta in the brain but do not form tau filaments. J Neurochem 83:1529–1533
Hooper C, Markevich V, Plattner F, Killick R, Schofield E, Engel T et al (2007) Glycogen synthase kinase-3 inhibition is integral to long-term potentiation. Eur J Neurosci 25:81–86
Hoshi M, Sato M, Kondo S, Takashima A, Noguchi K, Takahashi M et al (1995) Different localization of tau protein kinase I/glycogen synthase kinase-3 beta from glycogen synthase kinase-3 alpha in cerebellum mitochondria. J Biochem (Tokyo) 118:683–685
Hye A, Kerr F, Archer N, Foy C, Poppe M, Brown R et al (2005) Glycogen synthase kinase-3 is increased in white cells early in Alzheimer’s disease. Neurosci Lett 373:1–4
Jope RS (2003) Lithium and GSK-3: one inhibitor, two inhibitory actions, multiple outcomes. Trends Pharmacol Sci 24:441–443
Klein PS, Melton DA (1996) A molecular mechanism for the effect of lithium on development. Proc Natl Acad Sci USA 93:8455–8459
Lau KF, Miller CC, Anderton BH, Shaw PC (1999) Molecular cloning and characterization of the human glycogen synthase kinase-3beta promoter. Genomics 60:121–128
Lee KF, Chan JY, Lau KF, Lee WC, Miller CC, Anderton BH et al (2000) Molecular cloning and expression analysis of human glycogen synthase kinase-3 alpha promoter. Brain Res Mol Brain Res 84:150–157
Mudher A, Shepherd D, Newman TA, Mildren P, Jukes JP, Squire A et al (2004) GSK-3 beta inhibition reverses axonal transport defects and behavioral phenotypes in Drosophila. Mol Psychiatry 9:522–530
Mussmann R, Geese M, Harder F, Kegel S, Andag U, Lomow A, Burk U et al (2007) Inhibition of glycogen synthase kinase (GSK) 3 promotes replication and survival of pancreatic beta cells. J Biol Chem 282:12030–12037
Nunes PV, Forlenza OV, Gattaz WF (2007) Lithium and risk for Alzheimer’s disease in elderly patients with bipolar disorder. Br J Psychiatry 190:359–360
Phiel CJ, Wilson CA, Lee VM, Klein PS (2003) GSK-3alpha regulates production of Alzheimer’s disease amyloid-beta peptides. Nature 423:435–439
Stambolic V, Ruel L, Woodgett JR (1997) Lithium inhibits glycogen synthase kinase-3 activity and mimics wingless signalling in intact cells. Curr Biol 7:196
Stambolic V, Woodgett JR (1994) Mitogen inactivation of glycogen synthase kinase-3 beta in intact cells via serine 9 phosphorylation. Biochem J 303:701–704
Sun X, Sato S, Murayama O, Murayama M, Park JM, Yamaguchi H et al (2002) Lithium inhibits amyloid secretion in COS7 cells transfected with amyloid precursor protein C100. Neurosci Lett 321:61–64
Takahashi M, Tomizawa K, Kato R, Sato K, Uchida T et al (1994) Localization and developmental changes of tau protein kinase I/glycogen synthase kinase-3 beta in rat brain. J Neurochem 63:245–255
Vandesompele J, De Preter K, Pattyn F, Poppe B, Van Roy N, De Paepe A et al (2002) Accurate normalization of real-time quantitative RT-PCR data by geometric averaging of multiple internal control genes. Genome Biol 3:RESEARCH0034
Zhang F, Phiel CJ, Spece L, Gurvich N, Klein PSJ (2003) Inhibitory phosphorylation of glycogen synthase kinase-3 (GSK-3) in response to lithium. Evidence for autoregulation of GSK-3. Biol Chem 278:33067–33077
Acknowledgments
The research presented here was supported by ABADHS (Associação Beneficente Alzira Denise Herzog da Silva), CNPq (Conselho Nacional de Desenvolvimento Científico e Tecnológico) and FAPESP (Fundação do Amparo à Pesquisa do Estado de São Paulo). The authors recognize the valuable technical support of Sergio Catanozi, Jussara Cordeiro Rocha and Vanessa de Jesus de Paula, and the kind help of Prof. Suely Kazue Nagahashi Marie with the organization of space for our studies in her animal house.
Conflict of interest The authors declare no conflict of interest
Author information
Authors and Affiliations
Corresponding authors
Additional information
E. Dias-Neto and W.F. Gattaz contributed equally to this work.
Rights and permissions
About this article
Cite this article
Mendes, C.T., Mury, F.B., de Sá Moreira, E. et al. Lithium reduces Gsk3b mRNA levels: implications for Alzheimer Disease. Eur Arch Psychiatry Clin Neurosci 259, 16–22 (2009). https://doi.org/10.1007/s00406-008-0828-5
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00406-008-0828-5