亚酸类似的6-脱氧-6-18F--l-亚酸对23种不同类型的癌症进行PET成像
Bing Zhang1, Yali Long1, Yuying Zhang1
1Department of Nuclear Medicine, First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China; and.
概括
一种新的PET标记物,18F--l-AA (18F-FAA) 显示了不同癌症的多样化吸收. 这种成像工具可能有助于识别可能受益于 Askorbic 酸 (AA) 癌症治疗的患者.
科学领域:
- 在瘤学瘤学.
- 核医学是一种核医学.
- 放射化学 放射化学是指辐射化学.
背景情况:
- 高剂量的 Askorbic 酸 (AA) 由于其抗氧化作用而显示出作为辅助癌症治疗的前景.
- 鉴定从AA治疗中受益的患者是具有挑战性的,因为有争议的疗效.
- 需要使用非侵入性方法来评估与AA吸收相关的瘤特征.
研究的目的:
- 评估作为PET标记物的6-deoxy-6-18F-fluoro-l-AA (18F-FAA) 的潜在临床应用.
- 评估各种类型恶性瘤中18F-FAA的吸收.
- 探索18F-FAA摄入量与对基于AA的疗法的潜在反应之间的相关性.
主要方法:
- 一项前性研究,涉及116名患有本病理学证实恶性瘤的患者.
- 使用18F-FAA.A的正子发射断层扫描/计算机断层扫描 (PET/CT) 成像.
- 使用SUVmax,SUVpeak和瘤与背景比率对瘤吸收的定量分析.
主要成果:
- 18F-FAA在23种评估的瘤类型中显示出明显的吸收模式.
- 观测到的最大吸收量是在染细胞瘤,横瘤,质母细胞瘤和某些上皮癌中.
- 乳腺癌,胃癌,膀癌,结肠直肠癌和胰腺癌的吸收率最低;其他癌症的吸收率中等.
- 与原发性瘤相比,转移性病变的18F-FAA吸收率更高.
结论:
- 18F-FAA PET/CT成像显示了不同的瘤吸收特征.
- 这种标记物可能使瘤AA吸收的非侵入性评估成为可能.
- 潜在的引导患者选择基于AA的癌症疗法.
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