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Published on: May 20, 2016
Liposomes in Active, Passive and Acoustically-Triggered Drug Delivery
Sara Al Basha1, Najla Salkho2, Sarah Dalibalta1
1Department of Chemistry, Biology and Environmental Sciences, American University of Sharjah, Sharjah, United Arab Emirates.
Abstract:
Cancer has become one of the most deadly noncommunicable diseases globally. Several modalities used to treat cancer patients exist today yet many have failed to prove high efficacy with low side effects. The most common example of such modalities is the use of chemotherapeutic drugs to treat cancerous cells and deter their uncontrolled proliferation. In addition to the destruction of cancerous tissues, chemotherapy destroys healthy tissues as it lacks the specificity to annihilate cancerous cells only and preferentially, which result in adverse side effects including nausea, hair fall and myocardial infarction. To prevent the side effects of non-selective chemotherapy, cancer therapy research has been focused on the implementation of nanocarrier systems that act as vehicles to encapsulate drugs and selectively transport their agent to the tumor site. In this paper, we shed light on liposomes along with three anticancer drug delivery approaches: passive, active and ultrasound-triggered drug delivery.
Insights
Nanocarrier systems like liposomes offer targeted cancer treatment, improving chemotherapy efficacy and reducing side effects. This research explores passive, active, and ultrasound-triggered delivery methods for better drug delivery to tumors.
Area of Science:
- Oncology
- Nanotechnology
- Biomedical Engineering
Background:
- Cancer is a leading global noncommunicable disease with limited effective treatments.
- Conventional chemotherapy lacks specificity, causing severe side effects by damaging healthy tissues.
- Nanocarrier systems are being developed to improve targeted drug delivery and minimize toxicity.
Purpose of the Study:
- To review liposomes as nanocarriers for anticancer drug delivery.
- To discuss passive, active, and ultrasound-triggered drug delivery strategies.
- To highlight advancements in targeted cancer therapy.
Main Methods:
- Literature review of nanocarrier systems in cancer therapy.
- Focus on liposome-based drug delivery mechanisms.
- Analysis of passive, active, and ultrasound-triggered targeting approaches.
Main Results:
- Liposomes can encapsulate chemotherapeutic drugs for targeted delivery.
- Passive targeting relies on the enhanced permeability and retention (EPR) effect.
- Active targeting utilizes ligands for specific cell receptor binding.
- Ultrasound-triggered delivery enhances drug release at the tumor site.
Conclusions:
- Nanocarrier systems, particularly liposomes, show promise in enhancing cancer treatment efficacy.
- Targeted delivery strategies significantly reduce chemotherapy-induced side effects.
- Further research into advanced nanocarrier systems is crucial for improved patient outcomes.
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