フィブリンは,口腔粘膜壁における中性粒子のエフェクター機能の重要な調節剤である
Lakmali M Silva1,2, Andrew D Doyle3, Teresa Greenwell-Wild2
1Proteases and Tissue Remodeling Section, National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, MD, USA.
まとめ
線維素は粘膜の障壁における中性粒子の機能を調節する. 繊維素の分解の障害は,組織損傷と歯周病を引き起こし,繊維素を強調する.
科学分野:
- 免疫学
- 口腔生物学
- 凝固カスケード
背景:
- 粘膜壁のホメオスタシスを維持するために,組織特有のシグナルが不可欠です.
- 中性粒子の機能は,粘膜表面での免疫反応に不可欠です.
- 口腔粘膜免疫における凝固因子フィブリンの役割は十分に理解されていません.
研究 の 目的:
- 口腔粘膜障壁における中性粒子の機能の調節におけるフィブリンの役割を調査する.
- 繊維素が中性粒子のエフェクタ機能に影響を与えるメカニズムを決定する.
- 繊維分解,中性粒子の機能,および歯周病の関連性を調査する.
主な方法:
- 口腔内粘膜の外血管性線維素の蓄積が示されている.
- αMβ2インテグリン受容体経由で,中性粒子がフィブリンと結合することを研究した.
- 反応性酸素種生成と中性粒子の細胞外トラップ形成を含む中性粒子のエフェクター機能を評価した.
- マウスとヒトの組織損傷に対するプラズミン媒介繊維分解の影響を調べた.
- 歯周病に関連したPLG (プラズミノゲン) の遺伝子ポリモルフィズムを分析した.
主要な成果:
- 経口内微生物群は 口内粘膜に 血管外繊維の蓄積を誘発する.
- フィブリンは,αMβ2インテグリンを通じて,ROSの生成とNETの形成を含む中性粒子のエフェクタ機能を活性化します.
- 繊維分解の障害はこれらの中性粒子の機能を悪化させ,マウスとヒトの両方の組織損傷につながります.
- プラズミノゲン (PLG) の遺伝的変異は,一般的な歯周病と関連しています.
結論:
- 繊維素は,口腔粘膜壁における中性粒子のエフェクター機能の重要な調節剤である.
- 機能不全のフィブリノリシスは,歯周病のような粘膜疾患において,組織を損傷する中性粒子の反応に寄与する.
- フィブリン- 中性粒子の相互作用は,流行している粘膜疾患における潜在的な病原性経路を表しています.
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