Inhibitory Effect of Phytic Acid on LPS Induced BV-2 Microglia Activation

Author(s): Jinhui Zuo, Fuping Guan, Xin Li, Xiuli Wang, Fengyu Pan, Zheng Zhang, Chao Song

Hyperactivation of microglia is the important pathology of neurodegenerative diseases. Being naturally occurring compound, phytic acid (PA) has been found to exert anti-inflammatory effect in MPTP-induced parkinson’s disease model of mice, but mechanism needed to be further investigated. In our study, BV-2 microglia were cultured and induced by lipopolysaccharide (LPS) to mimic inflammation models to testify the phytic acid’s effect on neuroinflammation. Methods: BV-2 microglia were cultured in vitro. After pretreatment with different doses of PA, lipopolysaccharide (LPS) was added to induce the activation of BV-2 microglia. The cell survival rate was detected by MTT colorimetry, the NO release of microglia was measured by Griess assay, and the concentration of IL-6 in supernatant of cell culture was detected by ELISA assay. DAPI staining was used to detect the changes of apoptosis of activated BV-2 microglia before and after phytic acid treatment. Results: Phytic acid could inhibit the production of NO and IL-6 in BV-2 microglia activated by LPS, and block the excessive activation of BV-2 microglia stimulated by LPS. At the same time, it can promote the apoptosis of over-activated microglia. Therefore, phytic acid may play a potential role on prevention and treatment of neurodegenerative diseases associated with its inhibition on microglial activation.

Phytic Acid, Lipopolysaccharide, Microglia, Neuroinflammation

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