title: Effect of the atypical neuroleptic risperidone on morphology and S100B secretion in C6 astroglial lineage cells.
abstract: We investigated the effect of the atypical neuroleptic risperidone on morphology and S100B secretion in C6 glioma cells, considering the putative involvement of astroglial cells in neuropsychiatric disorders. In the presence of high experimental doses of risperidone, C6 cells become stellate, with process-bearing cells and partial retraction of the cell body followed by detachment from the adhesion surface with practically no cell death. These results indicate that risperidone is able to interfere with C6 cell adhesion without toxic effects. RhoA activator LPA prevented the effects of risperidone on cell morphology. From 6 h risperidone induced a statistically significant increment of about 80% in S100B secretion. These data contribute to the proposal that glial cells are targets of risperidone, which could be involved in the therapeutic response of risperidone to improve autism symptoms.
authors.affiliation: Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil.
authors.forename: André
authors.initials: A
authors.lastname: Quincozes-Santos
authors.forename: Renata Torres
authors.initials: RT
authors.lastname: Abib
authors.forename: Marina Concli
authors.initials: MC
authors.lastname: Leite
authors.forename: Daiane
authors.initials: D
authors.lastname: Bobermin
authors.forename: Victorio
authors.initials: V
authors.lastname: Bambini-Junior
authors.forename: Carlos-Alberto
authors.initials: CA
authors.lastname: Gonçalves
authors.forename: Rudimar
authors.initials: R
authors.lastname: Riesgo
authors.forename: Carmem
authors.initials: C
authors.lastname: Gottfried
mesh_terms: D000818:Animals; D014150:Antipsychotic Agents / Q000494:pharmacology*; D001253:Astrocytes / Q000166:cytology / Q000187:drug effects* / Q000378:metabolism; D019070:Cell Lineage / Q000187:drug effects; D002463:Cell Membrane Permeability / Q000187:drug effects; D048430:Cell Shape / Q000187:drug effects*; D002470:Cell Survival / Q000187:drug effects; D002478:Cells, Cultured; D004353:Drug Evaluation, Preclinical; D009414:Nerve Growth Factors / Q000378:metabolism*; D051381:Rats; D018967:Risperidone / Q000494:pharmacology*; D064568:S100 Calcium Binding Protein beta Subunit; D009418:S100 Proteins / Q000378:metabolism*
chemical_list: D014150:Antipsychotic Agents; D009414:Nerve Growth Factors; D064568:S100 Calcium Binding Protein beta Subunit; D009418:S100 Proteins; C579158:S100b protein, rat; D018967:Risperidone