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Bacterial Phylum Spirochaetes
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TRPV1+感覚ニューロンは,自己免疫性糖尿病におけるベータ細胞ストレスと小島炎症を制御する
Rozita Razavi1, Yin Chan, F Nikoo Afifiyan
1Neurosciences and Mental Health Program, The Hospital for Sick Children, Research Institute, University of Toronto, Toronto, ON, Canada, M5G 1X8.
Cell
|December 19, 2006
まとめ
TRPV1を発現する臓感覚神経は,小島炎症と1型糖尿病におけるインスリン抵抗性を調節する. これらのニューロンを除去すると,罹患性の高いマウスの糖尿病が予防され,病気の発症における重要な役割が明らかになる.
科学分野:
- 免疫学 免疫学とは
- 神経科学は神経科学である.
- エンドクリノロジー エンドクリノロジー
背景:
- 1型糖尿病は,T細胞媒介による臓ベータ細胞の破壊を伴い,インスリン不足を引き起こします.
- 自己反応性リンパ球を臓に惹きつけ,または制限する要因は,完全に理解されていません.
研究 の 目的:
- 1型糖尿病の病原性におけるTRPV1発現する臓感覚神経細胞の役割を調査する.
- これらのニューロンが小島炎症とインスリン抵抗性に影響するかどうかを判断する.
主な方法:
- 糖尿病に罹患しやすいNODマウスと遺伝子組み換えマウスモデル (例えば,trpv1(-/-) マウス) を利用した.
- 消去されたTRPV1 (((+) ニューロンと評価された胰炎,糖尿病発生率,およびインスリン抵抗性.
- TRPV1変異の機能と物質Pの投与の効果を調査した.
主要な成果:
- NODマウスのTRPV1 (((+)) ニューロンの除去は,持続的な病原性T細胞にもかかわらず,インスチライトと糖尿病を予防しました.
- TRPV1(+) ニューロンは,島根炎症とインスリン抵抗性を制御することが判明しました.
- 低機能のTRPV1変異体 (TRPV1(NOD)) が特定され,抑うつ神経原性炎症に関連していた.
- 物質Pの投与により,NODマウスの糖尿病および関連する病理が逆転した.
- TRPV1 (trpv1(-/-)) を欠いたマウスは,インスリン感受性の向上を示した.
結論:
- TRPV1 (((+) 臓の感覚神経はベータ細胞機能と1型糖尿病の病理学において根本的な役割を果たします.
- これらのニューロンは,小島炎症とインスリン抵抗性の重要な調節体です.
- TRPV1 (((+)) ニューロンまたはそのシグナル伝達経路をターゲットにすることで,1型糖尿病の新たな治療戦略を提供することができる.
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