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全身性エリテマトーデスのI型インターフェロン遺伝子発現とその眼病変との関連
Raphael Teixeira Costa1, Werbson Lima Guaraná2, Braziliano Miguel da Silva Júnior2
1University Hospital, Federal University of Alagoas, Maceió, Brazil.
ACR open rheumatology
|January 30, 2026
まとめ
全身性エリテマトーデスの患者および眼合併症を有する患者では、I型インターフェロン（IFN-I）遺伝子発現が上昇している。この所見は、IFN-IがSLE患者における眼合併症の発症に寄与する可能性を示唆している。
科学分野:
- 免疫学
- 眼科学
- リウマチ学
背景:
- I型インターフェロン（IFN-I）は全身性エリテマトーデスの病因に関与している。
- SLEの眼症状におけるIFN-I遺伝子発現の役割は、まだ十分に研究されていない。
研究 の 目的:
- SLE患者におけるIFN-I遺伝子シグネチャと眼科的関与との関連を調査すること。
主な方法:
- EULAR/ACR基準を満たす32人のSLE患者を対象とした横断研究。
- 眼科的評価および遺伝子発現解析（IFI27, IFI44L, IFIT1, ISG15, RSAD2, SIGLEC1）（リアルタイムPCRを使用）。
- 正規化された遺伝子発現に基づいた「インターフェロン・スコア」の算出。
主要な成果:
- 眼病変はSLE患者の62.5%に認められた。
- 眼病変を有する患者では、眼病変を有しない患者と比較して、IFN-I遺伝子発現が有意に高かった（FC = 2.52 ± 1.96; P = 0.0027）。
結論:
- IFN-I遺伝子発現の上昇は、SLEにおける眼科的関与と関連している。
- IFN-IはSLEにおける眼合併症の病因に関与している可能性がある。
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