碳水化合物依赖的向癌细胞由白素-微泡联合体
Jean-Charles Chapuis1, Ryan M Schmaltz, Krystal S Tsosie
1Center for BioEnergetics and Department of Chemistry, Arizona State University, Tempe, Arizona 85287, USA.
Journal of the American Chemical Society
|February 4, 2009
概括
与微泡相结合的生物化白素A(5) 专门向和粘附于癌细胞,而不是正常细胞. 这种可通过显微镜观察的向结合显示出癌细胞检测和治疗的潜力.
科学领域:
- 生物医学工程 生物医学工程
- 在瘤学瘤学.
- 细胞生物学 细胞生物学
背景情况:
- 白素A ((5) 是一种抗癌药物.
- 微气泡是充满气体的微球,用于医学成像和治疗.
- 针对性地向癌细胞提供治疗药物是瘤学的关键挑战.
研究的目的:
- 开发和评估一种针对癌细胞的向输送系统,使用白素衍生微泡.
- 评估白素-微泡结合剂与癌症细胞系相结合的特异性,与正常细胞系相比.
主要方法:
- 生物基化白素A(5) 与链维丁衍生微泡相结合.
- 结合剂应用于培养的MCF-7细胞和其他癌症细胞系.
- 通过显微镜观察和监测结合.
- 对照实验包括正常细胞系和微泡,不含或含有修饰的白素.
主要成果:
- 由白胺衍生的微泡特别粘附在MCF-7细胞和其他三种癌症细胞系上.
- 没有观察到与正常乳腺细胞系 (MCF-10A) 或匹配的非癌细胞系有显著的结合.
- 微泡上没有白素A ((5) 或修改后的白素类似物,取消了结合.
结论:
- 布莱米辛衍生微气泡在向癌细胞方面具有很高的特异性.
- 这种结合物显示出作为癌细胞检测或向治疗的工具的潜力.
- 蓝素A的碳水化合物部分对特定的结合相互作用至关重要.
相关概念视频
Targeted Cancer Therapies
The targeted cancer therapies, also known as “molecular targeted therapies,” take advantage of the molecular and genetic differences between the cancer cells and the normal cells. It needs a thorough understanding of the cancer cells to develop drugs that can target specific molecular aspects that drive the growth, progression, and spread of cancer cells without affecting the growth and survival of other normal cells in the body.
There are several types of targeted therapies against specific...
There are several types of targeted therapies against specific...
Targeted Cancer Therapies
The targeted cancer therapies, also known as “molecular targeted therapies,” take advantage of the molecular and genetic differences between the cancer cells and the normal cells. It needs a thorough understanding of the cancer cells to develop drugs that can target specific molecular aspects that drive the growth, progression, and spread of cancer cells without affecting the growth and survival of other normal cells in the body.
There are several types of targeted therapies against specific...
There are several types of targeted therapies against specific...
Combination Therapies and Personalized Medicine
Combining two or more treatment methods increases the life span of cancer patients while reducing damage to vital organs or tissue from the overuse of a single treatment. Combination therapy also targets different cancer-inducing pathways, thus reducing the chances of developing resistance to treatment.
The combination of the drug acetazolamide and sulforaphane is a good example of combination therapy to treat cancer. The cells in the interior of a large tumor often die due to the hypoxic and...
The combination of the drug acetazolamide and sulforaphane is a good example of combination therapy to treat cancer. The cells in the interior of a large tumor often die due to the hypoxic and...
Drugs that Destabilize Microtubules
Microtubules are dynamic structures and can be regulated by microtubule targeting agents (MTAs). Microtubule destabilizing drugs are a class of MTAs that destabilize and prevent microtubules' polymerization. Both natural and synthetic chemicals can be found under this class of drugs. Vincristine and vinblastine, two vinca alkaloids, and colchicine were among the first to be discovered. These drugs can affect cells in various ways, either by inducing a change in cell morphology, preventing...
Modified-Release Drug Delivery Systems: Site-Targeted
Site-targeted drug delivery systems enhance therapeutic efficacy while minimizing systemic toxicity and treatment costs. Unlike conventional methods, these systems ensure precise drug delivery, improving bioavailability and reducing side effects. Targeted drug delivery is classified into three levels. First-order targeting directs drugs to the capillary beds of specific organs or tissues. Second-order targets specific cell types, such as tumor cells, using receptor-mediated interactions.
Site-Targeted Drug Delivery Systems: Polymeric Carriers
Polymeric carriers enhance targeted drug delivery by increasing efficacy while minimizing off-target effects. These carriers comprise a biodegradable polymeric backbone integrated with functional elements that enable targeting, improve physicochemical properties, and regulate drug release.Targeting MechanismsThe targeting ability of polymeric carriers is mediated by a homing device, which is a molecular recognition component designed to selectively bind to specific tissues or cells. Monoclonal...
