在体外和体内代谢标记和血小板调节
Dhyanesh Baskaran1, Yusheng Liu1, Jiadiao Zhou1
1Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA.
Materials today. Bio
|April 16, 2025
概括
研究人员开发了一种使用代谢甘氨酸工程来标记血小板的新方法. 这种技术允许有针对性的药物输送,并为基于血小板的诊断和治疗开辟了新的可能性.
科学领域:
- 生物医学工程 生物医学工程
- 血液学 血液学 血液学
- 化学生物学 化学生物学
背景情况:
- 血小板对于静血至关重要,并与各种血液细胞相互作用.
- 血小板用于诊断和治疗的功能化是具有挑战性的,因为它们具有独特的生物特性.
- 现有的化学或基因工程方法在血小板方面面临局限性.
研究的目的:
- 开发一种使用代谢甘氨酸工程标记血小板的新方法.
- 为了使治疗载荷能够附着在血小板上,以便有针对性的输送.
- 探索工程血小板在诊断和药物输送中的潜力.
主要方法:
- 使用亚糖对血小板进行代谢甘氨酸标记.
- 通过点击化学检测细胞表面的亚齐多群.
- 大分子载荷 (蛋白质,聚合物) 和药物 (多克索鲁比) 结合到标记的血小板上.
- 在体内标记小鼠血小板通过腹腔内注射亚糖.
主要成果:
- 在体外,成功地将血小板标记为具有亚基团的代谢甘氨酸.
- 在4小时内,根据度,在血小板表面检测出亚齐多组.
- 蛋白质,聚合物和多克索鲁比辛在标记的血小板上有效结合.
- 在小鼠体内进行血小板标记,亚齐多群持续长达4天.
结论:
- 代谢甘氨酸标签提供了一个简单的策略来功能化血小板.
- 工程血小板可以作为有效的药物输送载体,释放载荷到目标细胞.
- 这种体外和体内技术推动了基于血小板的诊断和治疗.
相关概念视频
01:20Antiplatelet Drugs: Prostaglandin Synthesis, P2Y12 and Glycoprotein IIb/IIIa Inhibitors
Antiplatelet drugs emerge as frontline defenders against the insidious threat of thromboembolic diseases, where abnormal clots obstruct vital blood vessels. These drugs stand as bulwarks, inhibiting platelet aggregation and clot formation, thereby mitigating the risk of life-threatening conditions like myocardial infarction, coronary artery disease, and thrombotic strokes.
Prostaglandin synthesis inhibitors, exemplified by the widely known aspirin, wield their power by irreversibly acetylating...
Prostaglandin synthesis inhibitors, exemplified by the widely known aspirin, wield their power by irreversibly acetylating...
01:18Structure and Function of Platelets
The cell fragments known as platelets are disc-shaped, with an average diameter of about 3 μm and a thickness of roughly 1 μm. They play a crucial role in the body's vascular clotting system, which also involves plasma proteins, blood cells, and blood vessel tissues.
Platelets are continually replenished, circulating in the bloodstream for 9-12 days before being removed by phagocytes, primarily in the spleen. A microliter of circulating blood contains between 150,000 and 450,000 platelets, with...
Platelets are continually replenished, circulating in the bloodstream for 9-12 days before being removed by phagocytes, primarily in the spleen. A microliter of circulating blood contains between 150,000 and 450,000 platelets, with...