リーシュマニアRNAウイルスは,粘膜皮膚性リーシュマニア症の重症度を制御する
Annette Ives1, Catherine Ronet, Florence Prevel
1Department of Biochemistry, University of Lausanne, 1066 Epalinges, Switzerland.
まとめ
ライシュマニアの寄生虫のライシュマニアRNAウイルス-1 (LRV1) は,宿主の免疫反応を誘発し,皮膜粘膜性ライシュマニア症を逆説的に悪化させる. このウイルスのRNAは免疫を覆し,寄生虫の持続性と疾患の進行を促進します.
科学分野:
- 免疫学 免疫学とは
- 寄生虫学とは,寄生虫学である.
- ウイルス学 ウイルス学 ウイルス学
背景:
- Leishmania Vianniaの寄生虫によって引き起こされる粘膜皮膚性リーシュマニアは,破壊的な鼻の病変につながります.
- 病変の発生を誘発する正確なメカニズムは,ほとんど不明のままである.
研究 の 目的:
- 粘膜皮質リーシュマニア症の病原性におけるリーシュマニアRNAウイルス-1 (LRV1) の役割を調査する.
主な方法:
- 転移するLeishmania guyanensis.における寄生虫負担の分析
- 宿主トール型受容体3 (TLR3) のLRV1.1の認識を調査する.
- 感染したマウスの免疫反応と疾患の重度の評価.
主要な成果:
- 転移性寄生虫は,リーシュマニアRNAウイルス-1 (LRV1) の高い負荷を示した.
- ホストTLR3はLRV1を認識し,炎症誘発性サイトカインとケモカインを誘発した.
- TLR3の活性化により,予期せぬ感染感受性が増加し,マウスの腫れや寄生病が増加しました.
結論:
- ライシュマニア寄生虫内のLRV1は,宿主の免疫反応を妨害する.
- この免疫破壊は寄生虫の持続を促進し,粘膜皮質リーシュマニア症の病理性を悪化させます.
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