(212) Pb@C(60) 和其水溶性衍生物:合成,稳定性和适用于放射性免疫治疗的适用性
Michael D Diener1, John M Alford, Stephen J Kennel
1TDA Research Incorporated, 12345 West 52nd Avenue, Wheat Ridge, Colorado 80033 and Oak Ridge National Laboratory, 1 Bethel Valley Road, Oak Ridge, Tennessee 37831-6229, USA. mikee@tda.com
Journal of the American Chemical Society
|March 31, 2007
概括
在放射性免疫治疗中,富勒伦可以改善-212 (212Pb) 的容,防止骨髓积累. 这种富勒烯封装显示了针对目标放射性核素输送的增强稳定性.
科学领域:
- 放射化学 放射化学是指辐射化学.
- 纳米医学是一种纳米医学.
- 核医学就是核医学.
背景情况:
- 富勒为放射性免疫疗法提供稳定的放射性核素封装,特别是对于具有挑战性的放射性核素.
- -212 (212Pb) 是一种具有治疗前景的放射性核化物,但其在骨髓中的积累限制了临床使用.
- 传统的化方法与某些放射性核素 (如212Pb) 的独特性质作斗争.
研究的目的:
- 合成和描述212Pb封装的富勒伦 (212Pb@C60) 和它们的衍生物.
- 通过烯纳米结构传递的212Pb在体内稳定性和生物分布的评估.
- 为了将烯封装与212Pb输送的传统化方法进行比较.
主要方法:
- 212Pb@C60和马隆基衍生物是在α-衰变后使用反弹植入方法制备的.
- 放射化学稳定性通过离子交换挑战实验进行评估.
- 在小鼠中进行了初步生物分布研究,使用水溶性放射性烯衍生物.
主要成果:
- 212Pb@C60马龙 Ester表现出与自由Pb2+离子交换的抗性,这表明封装稳定.
- 生物分布研究表明,212Pb在通过内分体富勒伦递送时没有显著的骨积累.
- 与传统方法相比,富勒封装的212Pb显示了骨髓吸收的减少.
结论:
- 富勒伦在体内为212Pb提供了优越的制能力,相比于多化富勒伦和多胺碳酸盐化剂.
- 内分体富勒伦封装是一种有前途的策略,可以缓解与212Pb相关的骨髓毒性.
- 富勒伦在放射性免疫疗法中具有显著的潜力,可以有针对性地输送放射性核素.
相关概念视频
Nuclear Stability
Protons and neutrons, collectively called nucleons, are packed together tightly in a nucleus. With a radius of about 10−15 meters, a nucleus is quite small compared to the radius of the entire atom, which is about 10−10 meters. Nuclei are extremely dense compared to bulk matter, averaging 1.8 × 1014 grams per cubic centimeter. If the earth’s density were equal to the average nuclear density, the earth’s radius would be only about 200 meters.
To hold positively charged protons together in the...
To hold positively charged protons together in the...
Nuclear Transmutation
Nuclear transmutation is the conversion of one nuclide into another. It can occur by the radioactive decay of a nucleus, or the reaction of a nucleus with another particle. The first manmade nucleus was produced in Ernest Rutherford’s laboratory in 1919 by a transmutation reaction, the bombardment of one type of nuclei with other nuclei or with neutrons. Rutherford bombarded nitrogen-14 atoms with high-speed α particles from a natural radioactive isotope of radium and observed protons being...


