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Targeted drug delivery system inspired by macropinocytosis
Gan Jiang1, Chenxuan Wei1, Yaoxing Chen1
1Department of Pharmacology and Chemical Biology, State Key Laboratory of Systems Medicine for Cancer, Shanghai Universities Collaborative Innovation Center for Translational Medicine, Shanghai Jiao Tong University School of Medicine, 280 South Chongqing Road, Shanghai 200025, China.
Abstract:
Macropinocytosis is a widely-observed and evolutionarily-conserved endocytic process found in the eukaryotic cells. In comparison to other endocytic routes, macropinocytosis allows for the internalization of greater quantities of fluid-phase drugs, making it an attractive avenue for drug delivery. Recent evidence showed that various drug delivery systems can be internalized through macropinocytosis. Utilizing macropinocytosis may therefore provide a new avenue for targeted intracellular delivery. In this review, we provide an overview into the origins and distinctive properties of macropinocytosis, summarize the roles of macropinocytosis under healthy and pathological settings. Furthermore, we highlight the biomimetic and synthetic drug delivery systems that employ macropinocytosis as the primary internalization mechanism. To facilitate the clinical applications of these drug delivery systems, additional research can be conducted to enhance the cell-type selectivity of macropinocytosis, the control of drug release at the target, and the prevention of potential toxicity. The rapidly emerging field of macropinocytosis-based targeted drug delivery and therapies holds great potential to drastically increase the efficiency and specificity of drug delivery.
Insights
Macropinocytosis, a cellular uptake process, offers a promising route for delivering larger drug quantities. This review explores its potential for targeted intracellular drug delivery systems.
Area of Science:
- Cell Biology
- Biotechnology
- Pharmacology
Background:
- Macropinocytosis is an evolutionarily conserved endocytic process in eukaryotic cells.
- It facilitates the internalization of large fluid volumes, making it suitable for drug delivery.
- Macropinocytosis plays roles in both healthy and pathological cellular functions.
Purpose of the Study:
- To provide an overview of macropinocytosis origins and properties.
- To summarize the roles of macropinocytosis in health and disease.
- To highlight drug delivery systems utilizing macropinocytosis for internalization.
Main Methods:
- Review of existing literature on macropinocytosis.
- Analysis of biomimetic and synthetic drug delivery systems.
- Discussion of clinical application challenges and future research directions.
Main Results:
- Macropinocytosis enables the uptake of substantial fluid-phase drugs.
- Various drug delivery systems are internalized via macropinocytosis.
- This process presents a novel strategy for targeted intracellular delivery.
Conclusions:
- Macropinocytosis-based drug delivery holds significant potential for enhanced efficiency and specificity.
- Further research is needed to improve cell-type selectivity, control drug release, and mitigate toxicity.
- This approach offers a promising avenue for future targeted therapies.
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