Pro-inflammatory effects of aluminum in human glioblastoma cells

Brain Research
Arezoo CampbellStephen C Bondy

Abstract

Inflammatory events have been associated with senile plaques, one of the pathological hallmarks of Alzheimer's disease (AD). It is believed that aggregated beta-amyloid (betaA) proteins, which form the core of these plaques, may be responsible for triggering the inflammatory reaction. In the present study, the ability of aluminum (Al) to initiate similar inflammatory events was investigated in a human glioblastoma cell line. A 6-day exposure to either lipopolysaccharide (LPS) or aluminum sulfate caused a significant increase in the rate of proliferation of the glioblastoma cells. Both treatments also caused activation of the immune-responsive transcription factor NF-kappaB although there were time-related differences. The levels of secreted cytokines, interleukin-6 (IL-6) and tumor necrosis factor alpha (TNF-alpha) were both increased by the LPS treatment although exposure to Al decreased the secretion of the former while elevating the levels of the latter. These events may be due to the activation of glial cells and subsequent stress response to either Al complexes or LPS. Although exposure to either stress factor caused a stimulation of inflammatory markers, there were time-dependent differences in the response. This may refl...Continue Reading

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Citations

Aug 1, 2008·Archives of Toxicology·Sandra V VerstraetenPatricia I Oteiza
Mar 31, 2004·Molecular Aspects of Medicine·Patricia I OteizaSandra V Verstraeten
Dec 12, 2012·Alzheimer's Research & Therapy·Walter J Lukiw
Jul 22, 2011·International Journal of Environmental Research and Public Health·Stephen C Bondy
Mar 13, 2016·Morphologie : Bulletin De L'Association Des Anatomistes·A I Pogue, W J Lukiw
Jul 23, 2016·Environmental Science and Pollution Research International·Intissar GrissaZohra Haouas
Mar 9, 2018·Nutritional Neuroscience·Eman N HosnyYasser A Khadrawy
Feb 2, 2019·Molecular Neurobiology·Donald R C McLachlanWalter J Lukiw
Jun 12, 2003·International Journal of Immunopathology and Pharmacology·S C HeW Sheng

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