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Manufacture and Drug Delivery Applications of Silk Nanoparticles
Published on: October 8, 2016
'Smart' nanoparticles as drug delivery systems for applications in tumor therapy
Zhi Fang1, Lin-Yan Wan1,2, Liang-Yin Chu3,4
1a 1 China Three Gorges University, Medical College , Yichang, Hubei 443002, China zhangyanqiong@ctgu.edu.cn ; wujiangfeng@ctgu.edu.cn.
Introduction:
In the therapy of clinical diseases such as cancer, it is important to deliver drugs directly to tumor sites in order to maximize local drug concentration and reduce side effects. This objective may be realized by using 'smart' nanoparticles (NPs) as drug delivery systems, because they enable dramatic conformational changes in response to specific physical/chemical stimuli from the diseased cells for targeted and controlled drug release.
Areas Covered:
In this review, we first briefly summarize the characteristics of 'smart' NPs as drug delivery systems in medical therapy, and then discuss their targeting transport, transmembrane and endosomal escape behaviors. Lastly, we focus on the applications of 'smart' NPs as drug delivery systems for tumor therapy.
Expert Opinion:
Biodegradable 'smart' NPs have the potential to achieve maximum efficacy and drug availability at the desired sites, and reduce the harmful side effects for healthy tissues in tumor therapy. It is necessary to select appropriate NPs and modify their characteristics according to treatment strategies of tumor therapy.
Insights
Smart nanoparticles (NPs) offer targeted drug delivery for cancer therapy, improving efficacy and reducing side effects. Careful selection and modification of NPs are crucial for successful tumor treatment strategies.
Area of Science:
- Biomedical Engineering
- Nanotechnology
- Oncology
Background:
- Targeted drug delivery to tumor sites is crucial for maximizing efficacy and minimizing side effects in cancer therapy.
- Smart nanoparticles (NPs) offer a promising solution due to their ability to undergo conformational changes in response to disease-specific stimuli.
- This enables targeted and controlled drug release directly at the tumor site.
Purpose of the Study:
- To review the characteristics of smart NPs as drug delivery systems.
- To discuss their behavior in targeting, transport, transmembrane passage, and endosomal escape.
- To highlight their applications in tumor therapy.
Main Methods:
- Literature review of smart nanoparticle characteristics.
- Analysis of targeting, transport, and cellular interaction mechanisms.
- Focus on applications in preclinical and clinical tumor therapy.
Main Results:
- Smart NPs demonstrate potential for enhanced drug delivery and controlled release in tumor environments.
- Their ability to respond to specific stimuli facilitates targeted accumulation at the tumor site.
- Effective endosomal escape mechanisms are critical for intracellular drug delivery.
Conclusions:
- Biodegradable smart NPs hold significant potential for maximizing therapeutic efficacy and drug availability in tumor therapy.
- They can substantially reduce adverse effects on healthy tissues.
- Optimizing NP selection and modification based on tumor treatment strategies is essential for successful clinical translation.
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