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Biotechnol Lett. 2013 Aug;35(8):1183-9. doi: 10.1007/s10529-013-1192-8. Epub 2013 Apr 5.

Paeoniflorin, a monoterpene glycoside, attenuates lipopolysaccharide-induced neuronal injury and brain microglial inflammatory response.

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Graduate School of East-West Medical Science, Kyung Hee University, 1 Seochun, Yongin-si, 446-701, Republic of Korea.


Chronic activation of microglial cells endangers neuronal survival through the release of various proinflammatory and neurotoxic factors. Paeoniflorin (PF), a water-soluble monoterpene glycoside found in the root of Paeonia lactiflora Pall, has a wide range of pharmacological functions, such as anti-oxidant, anti-inflammatory, and anti-cancer effects. Neuroprotective potential of PF has also been demonstrated in animal models of neuropathologies. Here, we have examined the efficacy of PF in the repression of inflammation-induced neurotoxicity and microglial inflammatory response. In organotypic hippocampal slice cultures, PF significantly blocked lipopolysaccharide (LPS)-induced hippocampal cell death and productions of nitric oxide (NO) and interleukin (IL)-1β. PF also inhibited the LPS-stimulated productions of NO, tumor necrosis factor-α, and IL-1β from primary microglial cells. These results suggest that PF possesses neuroprotective activity by reducing the production of proinflammatory factors from activated microglial cells.

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