Cancer multidrug resistance: mechanisms involved and strategies for circumvention using a drug delivery system
Golam Kibria1, Hiroto Hatakeyama, Hideyoshi Harashima
1Laboratory of Innovative Nanomedicine, Faculty of Pharmaceutical Sciences, Hokkaido University, Kita 12, Nishi 6, Kita-ku, Sapporo, Hokkaido, 060-0812, Japan.
Abstract:
Multidrug resistance (MDR), the principal mechanism by which many cancers develop resistance to chemotherapy, is one of the major obstacles to the successful clinical treatment of various types of cancer. Several key regulators are responsible for mediating MDR, a process that renders chemotherapeutic drugs ineffective in the internal organelles of target cells. A nanoparticulate drug delivery system (DDS) is a potentially promising tool for circumventing such MDR, which can be achieved by targeting tumor cells themselves or tumor endothelial cells that support the survival of MDR cancer cells. The present article discusses key factors that are responsible for MDR in cancer cells, with a specific focus on the application of DDS to overcome MDR via the use of chemotherapy or macromolecules.
Insights
Multidrug resistance (MDR) hinders cancer chemotherapy. Nanoparticulate drug delivery systems (DDS) offer a promising strategy to overcome MDR by targeting cancer cells and improving treatment efficacy.
Area of Science:
- Oncology
- Nanotechnology
- Pharmacology
Background:
- Multidrug resistance (MDR) is a primary challenge in cancer chemotherapy, reducing drug effectiveness.
- Key regulators mediate MDR, causing chemotherapeutic agents to fail within cancer cells.
Purpose of the Study:
- To discuss the factors contributing to MDR in cancer.
- To explore the application of nanoparticulate drug delivery systems (DDS) in overcoming MDR.
Main Methods:
- Review of key regulators involved in MDR.
- Analysis of DDS strategies targeting tumor cells or associated endothelial cells.
- Discussion of chemotherapy and macromolecule delivery via DDS.
Main Results:
- MDR significantly impedes successful cancer treatment.
- DDS show potential for targeting MDR cancer cells and their support systems.
- Targeted delivery can enhance chemotherapeutic efficacy against resistant cancers.
Conclusions:
- Nanoparticulate DDS represent a viable approach to circumvent MDR.
- Targeting strategies involving DDS can improve outcomes for patients with resistant cancers.
- Further research into DDS applications is crucial for advancing cancer therapy.
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