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  5. 十字花科蔬菜衍生物對Lipopolysaccharide活化巨噬細胞所誘導之血管新生作用的影響
 
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十字花科蔬菜衍生物對Lipopolysaccharide活化巨噬細胞所誘導之血管新生作用的影響

Other Title
Effects of cruciferous vegetable derivatives in lipopolysaccharide activated macrophage induced angiogenesis
Type
thesis
Date Issued
2006
Author(s)
王美琳
Advisor
陳玉華
Subjects
系所名稱:保健營養學研究所
Abstract
本研究主要探討十字花科蔬菜衍生物benzyl isothiocyanate (BITC) 、phenylethyl isothiocyanate (PEITC) 與indole-3-carbinol (I3C) 對於活化巨噬細胞所誘導之血管內皮細胞血管新生之影響。將細菌內毒素lipopolysaccharide (LPS) 加入巨噬與血管內皮共同培養之細胞顯示,以Greiss reagent 所測得培養液中一氧化氮之生成與以matrigel 所分析之血管內皮細胞類血管生成皆有增加的現象,而BITC、PEITC與I3C的添加則可抑制NO與類血管的生成。為探討此抑制之作用 是否因影響巨噬細胞之故,因而使用LPS與BITC、PEITC或I3C共同處理之巨噬細胞condition medium (Co-BITC-CM, Co-PEITC-CM, Co-I3C-CM) 投予血管內皮細胞,結果指Co-BITC-CM, Co-PEITC-CM與Co-I3C-CM中含較低濃度之一氧化氮,且Co-I3C-CM可抑制血管內皮細胞之類血管生成的作用,且此抑制伴隨著較低血管內皮生長因子vascular endothelial growth factor (VEGF)的釋放與較低基質金屬蛋白?MMP-9 (matrix metalloproteinase-9) 活性,此外投與NO抑制劑L-NAME亦有相類似之結果。然而Co-BITC-CM與Co-PEITC-CM雖可抑制血管內皮細胞類血管的生成與MMP- 9的活性,反而可以促進VEGF之釋放。此外BITC、PEITC、I3C與L-NAME對於活化之血管內皮細胞影響亦被分析,因而以LPS活化巨噬細胞之condition medium (CM) 處理血管內皮細胞,並於BITC、PEITC與I3C之存在下偵測血管新生相關因子的影響。結果顯示,I3C與 L-NAME亦可抑制經CM誘導血管內皮細胞培養基內一氧化氮之生成、血管內皮細胞類血管生成、MMP- 9之活性與VEGF之分泌,而BITC與PEITC亦可抑制經CM誘導血管內皮細胞培養基內一氧化氮之生成、血管內皮細胞之類血管生成與MMP- 9之活性,但亦增加血管內皮生長因子生成。總而言之,十字花科蔬菜衍生物BITC、PEITC與I3C可同時藉由抑制LPS所誘導巨噬細胞活化,以及影響血管內皮細胞的作用而具有抗血管新生之作用,且其中I3C之抑制作用主要藉由NO之抑制,而BITC與PEITC之抑制作用則與NO無關。
URI
https://203.71.86.71/handle/123456789/12290
https://hdl.handle.net/11296/9dtsr2
File(s)
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C0178825.pdf

Size

21.84 MB

Format

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Checksum

(MD5):efe00ea470dab8913c136d8848459bc2

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