采用一般的两步绑定程序,对蛋白质激素勒丁进行特定地点的 (18) F 标签
Robert R Flavell1, Paresh Kothari, Maya Bar-Dagan
1Laboratory of Synthetic Protein Chemistry, Laboratory of Molecular Genetics, Howard Hughes Medical Institute, The Rockefeller University, New York, New York 10065, USA.
Journal of the American Chemical Society
|June 24, 2008
概括
研究人员开发了一种新方法来创建激素勒的放射性追踪剂,使其在体内分布的详细成像. 这种技术有助于通过使用正电子发射断层扫描 (PET) 了解瘦素抵抗和肥胖症.
科学领域:
- 生物化学 生物化学
- 放射化学 放射化学是指辐射化学.
- 分子成像学分子成像学
背景情况:
- 素是一种蛋白质激素,对调节体脂和能量消耗至关重要.
- 勒素耐药性与肥胖及其相关的健康问题有关.
- 了解瘦素的生物分布是调查瘦素耐药机制的关键.
研究的目的:
- 开发一种方法来创建一个 (18) F标记的素衍生物用于正电子发射断层扫描 (PET) 成像.
- 为了在体内研究勒素的生物分布.
- 为了深入了解勒素耐药性的机制.
主要方法:
- 采用了两步,特定于地点的结合方法.
- 表达蛋白质结合 (EPL) 在莱普的C端结合了氨基氧反应组.
- 用[ (18) F]甲进行放射化学氧化,用于标记.
主要成果:
- 修改后的瘦素在体外和体内都具有生物活性.
- 标有 (18) F 标签的丁已成功地用于 ob/ob 小鼠的 PET 影像.
- 开发的协议允许定期生产特定地点的 (18) F 放射性标记勒.
结论:
- 建立了一种针对特定地点的 (18) F放射性标记勒的强有力的方法.
- 这种技术可以使用PET成像来促进丁的体内生物分布研究.
- 该协议可用于标记其他蛋白质,用于PET成像应用.
相关概念视频
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