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自水產加工副產物萃取轉化磷脂醯絲胺酸之研究

  • 日期:105-06-03
  • 計畫編號:105農科-11.4.1-水-A1(3)
  • 年度:2016
  • 領域:漁業科技研發領域
  • 主持人:高翊峰
  • 研究人員:吳純衡、李緯毅

巨噬細胞吞噬(清除)凋亡細胞,在緩解發炎反應的過程中是一種重要的生理現象。 近年來的研究多聚焦在以擬態的凋亡細胞啟動巨噬細胞緩解發炎的程序。本研究藉 由 In-vitro 脂多醣(Lipopolysaccharide, LPS)誘導老鼠巨噬細胞促發炎基因表現 及角叉藻膠(Carrageenan)刺激鼠爪腫脹動物實驗,評估給予魷魚皮微脂體(SQliposome)對緩解發炎之影響。細胞實驗的結果顯示:0.25至2.5 mg/ml SQliposome會抑制LPS所引起老鼠巨噬細胞促發炎相關基因mRNA的表現,包含:IL1β、IL-6、TNF-α及iNOS (P<0.05),但不會抑制COX-2。 In-vivo 動物實驗結果 ,我們發現給予60mg/kg SQ-liposome,在角叉藻膠誘導鼠爪發炎後24~72小時,會 加速緩解鼠爪發炎腫脹的現象。組織病理學及免疫染色結果觀察到,SQ-liposome減 少發炎鼠爪中單核球浸潤及一氧化氮合成酶含量。本研究的結果顯示:利用SQliposome擬態凋亡細胞可能提供一種治療異常發炎的策略。

研究報告摘要(英)


Macrophage engulfed apoptotic cell in resolved inflammation is an important physiological phenomenon. Recently, there has been much attention focused on using mimicry of apoptotic cell trigged an active “suppressive” process on inflammation. This present study evaluated the resolving inflammatory effects of administrated squid skin liposome (SQliposome) on in-vitro LPS induced macrophage pro-inflammatory gene expression and in-vivo carrageenan induced paw edema in mouse. As our invitro results, 0.25 to 2.5mg/ml of SQ-liposome showed that suppressed LPS induced pro-inflammatory related mRNA expression on Raw264.7 cell, including IL-1β, IL-6, TNF-α and iNOS (P<0.05) but not CoX-2. In invivo results, administration of 60mg/kg SQ-liposome was observed on accelerated reduction of paw inflammatory swelling after carrageenan induced paw edema for 24~72h. Histpathological and immunostaining results also showed that SQ-liposome not only decrease monocyte infiltration but also suppressed iNOS expression on paw tissue. Our results suggested that using SQ-liposome as mimicking apoptotic body may be useful therapeutic strategies for inflammatory disorders.