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Updated: May 16, 2026

Polymalic Acid-based Nano Biopolymers for Targeting of Multiple Tumor Markers: An Opportunity for Personalized Medicine?
Published on: June 13, 2014
Advanced materials for co-delivery of drugs and genes in cancer therapy
Majad Khan1, Zhan Yuin Ong, Nikken Wiradharma
1Institute of Bioengineering and Nanotechnology, 31 Biopolis Way, Singapore 138669.
Abstract:
With cancer being the major cause of mortality worldwide, the continued development of safe and efficacious treatments is warranted. A better understanding of the molecular mechanism and genetic basis of tumor initiation and progression, coupled with advances in chemistry, molecular biology and engineering have led to discovery of a wide range of therapeutic agents for cancer therapy. However, multidrug-resistance, which is mainly caused by malfunction of genes, has become a major problem in chemotherapy. To overcome this problem, the simultaneous delivery of genes to cancer cells has been proposed to correct the malfunctioned genes to sensitize the cells to chemotherapeutics. This progress report summarizes key advances in drug and gene delivery with focus on the development of polymers, peptides, liposomes and inorganic materials as nanocarriers for co-delivery of small molecular drugs and macromolecular genes or proteins. In addition, challenges and future perspectives in the design of nanocarriers for the co-delivery of therapeutic drugs and genes are discussed.
Insights
Cancer multidrug-resistance is a major challenge. This report explores nanocarriers for simultaneous drug and gene delivery to overcome resistance and improve cancer therapy effectiveness.
Area of Science:
- Oncology and Nanomedicine
Background:
- Cancer is a leading global cause of mortality, necessitating novel therapeutic strategies.
- Multidrug-resistance in cancer chemotherapy, often due to genetic factors, significantly limits treatment efficacy.
- Advances in molecular biology and engineering enable the development of targeted cancer therapies.
Purpose of the Study:
- To summarize recent progress in nanocarrier development for combined drug and gene delivery in cancer therapy.
- To highlight the potential of co-delivery systems in overcoming multidrug-resistance.
- To discuss challenges and future directions in designing nanocarriers for dual therapeutic agent delivery.
Main Methods:
- Review of polymers, peptides, liposomes, and inorganic materials as nanocarrier platforms.
- Focus on nanocarriers designed for the co-delivery of small molecule drugs and genetic material (genes or proteins).
- Analysis of strategies to enhance drug and gene delivery to cancer cells.
Main Results:
- Nanocarriers offer a promising approach for the simultaneous delivery of drugs and genes.
- Co-delivery systems can potentially sensitize cancer cells to chemotherapeutics, overcoming multidrug-resistance.
- Various nanomaterials demonstrate potential for effective co-delivery applications.
Conclusions:
- Nanocarriers are crucial for advancing cancer therapy by enabling co-delivery of drugs and genes.
- Overcoming multidrug-resistance through gene correction and chemosensitization is a key therapeutic goal.
- Continued research into nanocarrier design is essential for future cancer treatment innovations.
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