Nitrated alpha-synuclein-activated microglial profiling for Parkinson's disease

Ashley D. Reynolds, Jason G. Glanzer, Irena Kadiu, Mary Ricardo-Dukelow, Anathbandhu Chaudhuri, Pawel Ciborowski, Ronald Cerny, Benjamin Gelman, Mark P. Thomas, R. Lee Mosley, Howard E. Gendelman

Research output: Contribution to journalArticle

137 Citations (Scopus)

Abstract

Microglial neuroinflammatory processes play a primary role in dopaminergic neurodegeneration for Parkinson's disease (PD). This can occur, in part, by modulation of glial function following activation by soluble or insoluble modified alpha-synuclein (α-syn), a chief component of Lewy bodies that is released from affected dopaminergic neurons. α-Syn is nitrated during oxidative stress responses and in its aggregated form, induces inflammatory microglial functions. Elucidation of these microglial function changes in PD could lead to new insights into disease mechanisms. To this end, PD-associated inflammation was modeled by stimulation of microglia with aggregated and nitrated α-syn. These activated microglia were ameboid in morphology and elicited dopaminergic neurotoxicity. A profile of nitrated, aggregated α-syn-stimulated microglia was generated using combinations of genomic (microarrays) and proteomic (liquid chromatography-tandem mass spectrometry, differential gel electrophoresis, and protein array) assays. Genomic studies revealed a substantive role for nuclear factor-kappa B transcriptional activation. Qualitative changes in the microglial proteome showed robust increases in inflammatory, redox, enzyme, and cytoskeletal proteins supporting the genomic tests. Autopsy brain tissue acquired from substantia nigra and basal ganglia of PD patients demonstrated that parallel nuclear factor-kappa B-related inflammatory processes were, in part, active during human disease. Taken together, the transcriptome and proteome of nitrated α-syn activated microglia, shown herein, provide new potential insights into disease mechanisms.

Original languageEnglish (US)
Pages (from-to)1504-1525
Number of pages22
JournalJournal of Neurochemistry
Volume104
Issue number6
DOIs
StatePublished - Mar 2008

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alpha-Synuclein
Microglia
Parkinson Disease
NF-kappa B
Proteome
Basal Ganglia Diseases
Lewy Bodies
Protein Array Analysis
Cytoskeletal Proteins
Dopaminergic Neurons
Substantia Nigra
Tandem Mass Spectrometry
Transcriptome
Neuroglia
Liquid Chromatography
Proteomics
Transcriptional Activation
Oxidation-Reduction
Electrophoresis
Chemical activation

Keywords

  • Alpha-synuclein
  • Microglia
  • Neuroinflammation
  • Parkinson's disease
  • Proteomics

ASJC Scopus subject areas

  • Biochemistry
  • Cellular and Molecular Neuroscience

Cite this

Reynolds, A. D., Glanzer, J. G., Kadiu, I., Ricardo-Dukelow, M., Chaudhuri, A., Ciborowski, P., ... Gendelman, H. E. (2008). Nitrated alpha-synuclein-activated microglial profiling for Parkinson's disease. Journal of Neurochemistry, 104(6), 1504-1525. https://doi.org/10.1111/j.1471-4159.2007.05087.x

Nitrated alpha-synuclein-activated microglial profiling for Parkinson's disease. / Reynolds, Ashley D.; Glanzer, Jason G.; Kadiu, Irena; Ricardo-Dukelow, Mary; Chaudhuri, Anathbandhu; Ciborowski, Pawel; Cerny, Ronald; Gelman, Benjamin; Thomas, Mark P.; Mosley, R. Lee; Gendelman, Howard E.

In: Journal of Neurochemistry, Vol. 104, No. 6, 03.2008, p. 1504-1525.

Research output: Contribution to journalArticle

Reynolds, AD, Glanzer, JG, Kadiu, I, Ricardo-Dukelow, M, Chaudhuri, A, Ciborowski, P, Cerny, R, Gelman, B, Thomas, MP, Mosley, RL & Gendelman, HE 2008, 'Nitrated alpha-synuclein-activated microglial profiling for Parkinson's disease', Journal of Neurochemistry, vol. 104, no. 6, pp. 1504-1525. https://doi.org/10.1111/j.1471-4159.2007.05087.x
Reynolds AD, Glanzer JG, Kadiu I, Ricardo-Dukelow M, Chaudhuri A, Ciborowski P et al. Nitrated alpha-synuclein-activated microglial profiling for Parkinson's disease. Journal of Neurochemistry. 2008 Mar;104(6):1504-1525. https://doi.org/10.1111/j.1471-4159.2007.05087.x
Reynolds, Ashley D. ; Glanzer, Jason G. ; Kadiu, Irena ; Ricardo-Dukelow, Mary ; Chaudhuri, Anathbandhu ; Ciborowski, Pawel ; Cerny, Ronald ; Gelman, Benjamin ; Thomas, Mark P. ; Mosley, R. Lee ; Gendelman, Howard E. / Nitrated alpha-synuclein-activated microglial profiling for Parkinson's disease. In: Journal of Neurochemistry. 2008 ; Vol. 104, No. 6. pp. 1504-1525.
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