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Article Publish Status: FREE
Abstract Title:

Mulberry extracts alleviate aβ 25-35-induced injury and change the gene expression profile in PC12 cells.

Abstract Source:

Evid Based Complement Alternat Med. 2014 ;2014:150617. Epub 2014 Dec 17. PMID: 25580148

Abstract Author(s):

Nan Song, Hongpeng Yang, Wei Pang, Zhiwei Qie, Hao Lu, Long Tan, Haiqiang Li, Shoudan Sun, Fuzhi Lian, Chuan Qin, Yugang Jiang

Article Affiliation:

Nan Song

Abstract:

Mulberry, which contained high amounts of anthocyanins, has been used in traditional Chinese medicine. Mulberry fruit extracts (ME) have demonstrated the antioxidant activity and neuroprotection. The study was to investigate the neuroprotective efficacy of ME againstβ-amyloid 25-35- (Aβ 25-35-) induced PC12 cells injury. Cells preincubated with or without ME (200 μg/mL) for 24 h were treated with Aβ 25-35 (20 μmol/L) for another 24 h. Cell viability was assessed by MTT, gene expression profiles were examined by cDNA microarrays, and RT-PCR were used to confirm the results of microarray assays. ME pretreatment was found to neutralize the cytotoxicity and prevent Aβ 25-35-induced cells injury. Analyses of gene expression profile revealed that genes involving cell adhesion, peptidase activity, cytokine activity, ion binding activity, and angiogenesis regulation were significantly modulated by ME pretreatment. Among those genes, Apaf1, Bace2, and Plcb4 were enriched in the"Alzheimer's disease-reference pathway"and downregulated after ME intervention. RT-PCR results showed that ME preincubation could significantly inhibit Aβ 25-35 increased mRNA levels of these three genes. Overall, ME pretreatment could substantially alleviate PC12 cells injury and downregulate expression of AD-related genes, such as Apaf1, Bace2, and Plcb4. This study has a great nutrigenomics interest and brings new and important light in the field of AD intervention.

Study Type : Animal Study, In Vitro Study

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Sayer Ji
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