予防接種を受けていない患者で,炎症促進性および抗炎症性サイトカインポリモルフィズムとの関連
Laura E Martínez-Gómez1, Carla I Oropeza-Vélez2, Maylin Almonte-Becerril3
1Laboratorio de Gerociencias, Dirección General, Departamento de Reconstrucción Articular, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, Secretaría de Salud, Mexico City, Mexico.
Frontiers in immunology
|August 29, 2025
まとめ
TNF-α,IL-6,IL-10,CCL5のようなサイトカインの遺伝的変異は,COVID-19の重症度に影響します. 特定のポリモルフィズムは,未ワクチン患者における重症疾患と死亡率の増加と関連しています.
科学分野:
- 免疫遺伝学
- ウイルス学
- 分子疫学
背景:
- サイトカインとケモカインは,SARS-CoV-2に対する免疫反応に不可欠です.
- これらの分子の遺伝子変異は 疾患の結果に大きな影響を与えます
- これらの遺伝的関連性を理解することは,COVID-19の重症性を予測する鍵です.
研究 の 目的:
- TNF-α,IL-6,IL-8,IL-10,CCL5遺伝子とCOVID-19の重症度の間の関連性を調査する.
- ワクチン接種されていない患者の特定の遺伝子変異と臨床結果の関係を評価する.
主な方法:
- WHOの疾患の重症度によって分類された627人のワクチン接種されていないCOVID-19患者の横断的な研究.
- 血清のサイトカインおよびケモカインレベル評価 (IFN-α,IFN-γ,TNF-α,IL- 1Ra,IL- 2,IL- 6,IL- 7,IL- 10,CCL2,CCL3,CXCL8,CXCL10,GCSF)
- クルスカル・ワリステストのグループ比較と,多形性-重度関連のロジスティック回帰.
主要な成果:
- 死亡した患者では,IL-2,IL-6,CCL-2のレベルが上昇した.
- 軽症のグループと比較して,中等症のCOVID-19グループでは,より高いIL-10レベルが見つかりました.
- 5つのポリモルフィズム (TNF-α rs1800610,IL-6 rs1800796,IL-10 rs1800871/rs1800872,CCL5 rs3817656) は重度のCOVID-19のリスク増加と関連していました.
結論:
- 特定のTNFα遺伝子変異体 (rs1800629) は,中度/重度のCOVID-19および関連するサイトカイン不調に対する保護性があるようです.
- IL-10 (rs1800872,rs1800871) とCCL-5 (rs2107538) のポリモルフィズムが死亡リスクの増加と関連していた.
- CCL-5のマイナーアレルは,ケモカインレベルとサイトカインストームマーカーの上昇と関連していました.
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