アプラスティック貧血 (aplastic anemia) とは
Robert A Brodsky1, Richard J Jones
1Johns Hopkins University School of Medicine, Division of Hematology, and Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, MD, USA. brodsro@jhmi.edu
Lancet (London, England)
|May 12, 2005
まとめ
アプラスティック貧血は,パンサイトペニアを引き起こす珍しい幹細胞疾患です. 血液型幹細胞の免疫媒介による破壊が主な原因であり,移植や免疫抑制を含む効果的な治療法があります.
科学分野:
- 血液学 ヘマトロジ
- 免疫学 免疫学とは
- 遺伝学 遺伝学とは
背景:
- アプラスティック貧血は,血液形成幹細胞の希少で生命を脅かす疾患であり,パンサイトペニアと低細胞骨髄によって特徴付けられます.
- ほとんどの症例は既得であり,免疫媒介的であるが,希少な遺伝的形態が存在する.
- 病理生理学では,自己反応性リンパ球が血液形成性幹細胞を破壊し,環境要因によって引き起こされる可能性があります.
研究 の 目的:
- アプラスティック貧血の病理生理学,臨床経過,治療についてまとめます.
- アプラスティック貧血,パロキシズマル夜間血球分泌尿症,骨髄分裂症候群の関連性を強調する.
主な方法:
- アプラスティック貧血の病理生理学と治療に関する文献レビュー.
- 血液形成性幹細胞破壊に関与する免疫媒介メカニズムの分析.
- 既定および新興の治療戦略のレビュー.
主要な成果:
- 既得アプラスティック貧血は主に免疫媒介性であり,イディオパシー症例が最も一般的です.
- 病気の進行は軽度から生命を脅かすパンサイトペニアまで変化します.
- パロキシズマ性夜間血球分泌尿症とミエロディスプラスティック症候群は,共通の病理生理学的経路を示唆する一般的な後遺症です.
結論:
- 既得アプラスティック貧血の有効な治療法は,アロゲニック骨髄移植,免疫抑制 (抗チモサイトグローブリンとシクロスポリン),および高用量サイクロフォスファミドを含む.
- 免疫の基礎を理解することは,このまれな血液学的疾患の管理に不可欠です.
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