Dataset Information

Salvianolic Acid B Inhibits A? Generation by Modulating BACE1 Activity in SH-SY5Y-APPsw Cells.

ABSTRACT: Alzheimer's disease (AD) is a neurodegenerative disease in humans. The accumulation of amyloid-? (A?) plays a critical role in the pathogenesis of AD. Previous studies indicated that Salvianolic acid B (SalB) could ameliorate A?-induced memory impairment. However, whether SalB could influence the generation of A? is unclear. Here, we show that SalB (25, 50, or 100 µM) reduces the generation of A?40 and A?42 in culture media by decreasing the protein expressions of BACE1 and sAPP? in SH-SY5Y-APPsw cells. Meanwhile, SalB increases the levels of ADAM10 and sAPP? in the cells. However, SalB has no impact on the protein expressions of APP and PS1. Moreover, SalB attenuates oxidative stress and inhibits the activity of GSK3?, which might be related to the suppression of BACE1 expression and amyloidogenesis. Our study suggests that SalB is a promising therapeutic agent for AD by targeting A? generation.

SUBMITTER: Tang Y

PROVIDER: S-EPMC4924174 | biostudies-literature | 2016 Jun

REPOSITORIES: biostudies-literature

ACCESS DATA

Publications

Salvianolic Acid B Inhibits Aβ Generation by Modulating BACE1 Activity in SH-SY5Y-APPsw Cells.

Tang Ying Y Huang Dan D Zhang Mei-Hua MH Zhang Wen-Sheng WS Tang Yu-Xin YX Shi Zheng-Xiang ZX Deng Li L Zhou Dai-Han DH Lu Xin-Yi XY

Nutrients 20160601 6

Alzheimer's disease (AD) is a neurodegenerative disease in humans. The accumulation of amyloid-β (Aβ) plays a critical role in the pathogenesis of AD. Previous studies indicated that Salvianolic acid B (SalB) could ameliorate Aβ-induced memory impairment. However, whether SalB could influence the generation of Aβ is unclear. Here, we show that SalB (25, 50, or 100 µM) reduces the generation of Aβ40 and Aβ42 in culture media by decreasing the protein expressions of BACE1 and sAPPβ in SH-SY5Y-APPs ...[more]

PMID: 27258307

Similar Datasets

Project description:BackgroundMaleic acid is a multi-functional chemical widely used in the field of industrial chemistry for producing food additives and food contact materials. As maleic acid may contaminate food by the release from food packages or intentional addition, it raises the concern about the effects of excessive dietary exposure to maleic acid on human health. However, the influence of maleic acid on human health has not been thoroughly studied. In silico toxicogenomics approaches have found the association between maleic acid and nervous system disease in human. The aim of this study is to experimentally explore the effects of maleic acid on human neuronal cells.MethodsA microarray-based transcriptome profiling was performed to offer a better understanding of the effects of maleic acid on human health. Gene expression profiles of human neuroblastoma SH-SY5Y cells exposed to three concentrations of maleic acid (10, 50, and 100 μM) for 24 h were analyzed. Genes which were differentially expressed in dose-dependent manners were identified and further analyzed with an enrichment analysis. The expression profile of selected genes related to the inferred functional changes was validated using quantitative polymerase chain reaction (qPCR). Specific fluorescence probes were applied to observe the inferred functional changes in maleic acid-treated neuronal cells.ResultsA total of 316 differentially expressed genes (141 upregulated and 175 downregulated) were identified in response to the treatment of maleic acid. The enrichment analysis showed that DNA binding and metal ion binding were the significant molecular functions (MFs) of the neuronal cells affected by maleic acid. Maleic acid exposure decreased the expression of genes associated with calcium and thiol levels of the cells in a dose-dependent manner. The levels of intracellular calcium and thiol levels were also affected by maleic acid dose-dependent.DiscussionThe exposure to maleic acid is found to decrease the cellular calcium and thiol levels in human neuronal cells at both transcriptional and functional levels. This study reported the first transcriptomic profiling of human neuronal cells treated with maleic acid. It is also the first experimental validation of chemical effects predicted by in silico toxicogenomics approaches. The proposed approach may be useful in understanding the potential effects of other poorly characterized chemicals on human health.

Dataset Information

Salvianolic Acid B Inhibits A? Generation by Modulating BACE1 Activity in SH-SY5Y-APPsw Cells.

Publications

Salvianolic Acid B Inhibits Aβ Generation by Modulating BACE1 Activity in SH-SY5Y-APPsw Cells.

Similar Datasets

OmicsDI is part of the ELIXIR infrastructure

Tweets