ArticleCellular and molecular neurobiology2018
Neuroprotective Effects of Sigesbeckia pubescens Extract on Glutamate-Induced Oxidative Stress in HT22 Cells via Downregulation of MAPK/caspase-3 Pathways.
Article in Cellular and molecular neurobiology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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15 citing papers in PubMed, 24 citations in OpenAlex.
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Authors and funding
11 authors at 1 institution in 2 countries.
Funding
Abstract
Sigesbeckia pubescens (SP) is a traditional Chinese medicine, possessing antioxidant and anti-inflammatory activities. In this study, we evaluate the neuroprotective activities of SP extract on glutamate-induced oxidative stress in HT22 cells and the molecular mechanism underlying neuroprotection. We applied 3-(4, 5-dimethylthiazol-2-yl)-2, 5-diphenyltetrazolium bromide (MTT), crystal violet, reactive oxygen species (ROS), lactate dehydrogenase (LDH), quantitative real-time polymerase chain reaction (qPCR), and western blot analyses for assessing the neuroprotective effects of SP extract. The experimental study revealed that SP considerably increased the cell viability, and reduced the oxidative stress promoted ROS and LDH generation in HT22 cells in a dose-dependent manner. Additionally, the morphology of HT22 cells was effectively improved by SP. Upregulated gene expressions of mitogen-activated protein kinase (MAPK) were markedly attenuated by SP. Similarly, SP notably suppressed the ROS-mediated phosphorylation of MAPK (pERK1/2, pJNK, and pp38) cascades and activation of apoptotic factor caspase-3 signaling pathway that overall contributed to the neuroprotection. Taken together, SP may exert neuroprotective effects via alteration of MAPK and caspase-3 pathways under oxidative stress condition. Therefore, SP is a potential agent for preventing oxidative stress-mediated neuronal cell death.
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