Transcritpional effects of S100B on neuroblastoma cells: perturbation of cholesterol homeostasis and interference on the cell cycle.

Gene Expression
C BernardiniF Michetti

Abstract

S100B is a Ca2+ binding protein mainly secreted by astrocytes in the vertebrate brain that is considered a multifunctional cytokine and/or a damage-associated molecular pattern (DAMP) protein and a marker of brain injury and neurodegeneration when measured in different body fluids. It has been widely shown that this protein can exert diverse effects in neural cultures depending on its concentration, having detrimental effects at micromolar concentrations. The molecular mechanisms underlying this effect are still largely unknown. This study attempts to delineate the genome-wide gene expression analysis of the events associated with exposure to micromolar concentration of S100B in a human neuroblastoma cell line. In this experimental condition cells undergo a severe perturbation of lipid homeostasis along with cell cycle arrest. These mechanisms might reasonably mediate some aspects of the S100B-related detrimental effects of S100B, although obvious differences between mature neurons and neuroblastoma cells have to be considered.

Associated Datasets

Citations

Dec 8, 2011·Journal of Neurochemistry·Fabrizio MichettiDiego Gazzolo
Jan 6, 2012·Journal of Biomedicine & Biotechnology·Wanda LattanziFabrizio Michetti
Aug 26, 2018·Journal of Neurochemistry·Fabrizio MichettiMaria Concetta Geloso
Feb 18, 2020·The International Journal of Neuroscience·Zulfiye GulRifat Levent Buyukuysal
Sep 3, 2011·Journal of Cellular and Molecular Medicine·Masakazu HashimotoLars O Tjernberg
May 11, 2021·Neuroscience and Biobehavioral Reviews·Fabrizio MichettiFrancesco Ria

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