アロゲン性造血幹細胞移植の患者におけるエオシノフィールに富んだ食道炎のパターン: 多中心の経験
Reem Youssef1, Kwun Wah Wen2, Zahra Alipour3
1Department of Pathology and Laboratory Medicine, Indiana University School of Medicine, United States.
Human pathology
|August 25, 2025
まとめ
血管新生幹細胞移植 (HSCT) の患者では珍しい. この研究では,条件付け傷害,移植対宿主疾患 (GVHD),移植性アレルギー (TAA) との関連性が見つかりました.
科学分野:
- 胃腸内科
- 血液学
- 免疫学
背景:
- エオシノフィルの多い食道炎は,内皮内エオシノフィルの増加によって特徴づけられ,エオシノフィル性食道炎 (EoE) を含む様々な疾患に関連しています.
- 血管新生幹細胞移植 (HSCT) の受容者において,エオシノフィールに富んだ食道炎はまれであり,移植で得られたアレルギー (TAA) と関連している事前の報告がある.
研究 の 目的:
- HSCT患者でエオシノフィールに富んだ食道炎のパターンを示す食道生検の臨床および病理学的特徴を特徴づける.
主な方法:
- 多中心研究で,エオシノフィールに富んだ食道炎を患った10人のHSCT患者が特定されました.
- 食道生検から得られた臨床データと組織病理学的発見を分析した.
- 調べられた主な特徴には,エオシノフィルの数,エオシノフィルの脱粒化,,アポプトシス体,およびディスカラトシス細胞が含まれていた.
主要な成果:
- 患者の平均年齢は45歳で,HSCT後の平均年齢は6ヶ月でした.
- 病理学的発見には,エオシノフィルの脱粒化 (6例),エオシノフィルの (3例),アポプトシス体 (5例),およびディスケラトシス細胞 (3例) が含まれていた.
- 移植対宿主疾患 (GVHD) の特徴は,HSCTの21日後に,しばしば胃腸外GVHDで現れる患者で観察されました.
- 2人の患者は薬に対してTAAを発症し,1人は輸血アレルギー反応を起こした.
- EOEの診断基準を満たした患者は1人だけでした.
結論:
- HSCT患者では,エオシノフィルの豊富な食道炎は,コンディショニング療法による損傷とGVHDに関連しています.
- 移植性アレルギー (TAA) も,この集団におけるエオシノフィル性食道炎の発生に関与しています.
- 研究された症例の数が限られているため,さらなる研究が必要である.
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