Batatasin I, a Naturally Occurring Phenanthrene Derivative, Isolated from Tuberous Roots of Dioscorea batatas Suppresses Eicosanoids Generation and Degranulation in Bone Marrow Derived-Mast Cells

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概要

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• To find anti-inflammatory compounds from the tuberous roots of Dioscorea batatas, we isolated 6-hydroxy-2,4,7-trimethoxyphenanthrene (batatasin I) from the dichloromethane (CH2Cl2) fraction of this plant. Batatasin I inhibited both the generation of prostaglandin D2 (PGD2), leukotriene C4 (LTC4) and degranulation reaction in mouse bone marrow-derived mast cells (BMMCs). This compound inhibited cyclooxygenase-2 (COX-2) dependent PGD2 generation in a dose dependent manner, with IC50 values of 1.78 μM. Western blotting probed with specific anti-COX-2 antibodies showed that the decrease in the quantity of the PGD2 generation was accompanied by a decrease in the COX-2 protein level. In addition, this compound also inhibited the production of 5-lipoxygenase (5-LOX) dependent LTC4 in a dose dependent manner (IC50, 1.56 μM). Batatasin I also inhibited the mast cell degranulation reaction (IC50, 6.7 μM) in BMMCs. This result indicates that batatasin I could be developed as an anti-inflammatory agent through further investigation.

著者

• JIN Meihua

  College of Pharmacy, Yeungnam University

• Son Jong-keun

  College Of Pharmacy Yeungnam University

• Chang Hyeun

  College Of Pharmacy Yeungnam University

• Lu Yue

  College of Pharmacy, Yeungnam University

• Son Kun

  Department Food & Nutriton Andong National University

• Jin Mei

  College Of Pharmacy Yeungnam University

• Park Sang-Jo

  Institute for Natural Products Research, Gyeongsangbuk-do Agricultural Research & Extension Services

• SON Jong-Keun

  College of Pharmacy, Yeungnam University

• Park Sang-Jo

  Institute for Natural Products Research, Gyeongsangbuk-do Agricultural Research & Extension Services

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