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A critical review on modulators of Multidrug Resistance Protein 1 in cancer cells
Vivian Osei Poku1, Surtaj Hussain Iram1,2
1Department of Chemistry and Biochemistry, South Dakota State University, Brookings, SD, United States of America.
Abstract:
Multidrug resistance protein 1 (MRP1/ABCC1) is an ATP-dependent efflux transporter, and responsible for the transport of a broad spectrum of xenobiotics, toxins, and physiological substrates across the plasma membrane. As an efflux pump, it plays a significant role in the absorption and disposition of drugs including anticancer drugs, antivirals, antimalarials, and antibiotics and their metabolites across physiological barriers in cells. MRP1 is also known to aid in the regulation of several physiological processes such as redox homeostasis, steroid metabolism, and tissue defense. However, its overexpression has been reported to be a key clinical marker associated with multidrug resistance (MDR) of several types of cancers including lung cancer, childhood neuroblastoma, breast and prostate carcinomas, often resulting in a higher risk of treatment failure and shortened survival rates in cancer patients. Aside MDR, overexpression of MRP1 is also implicated in the development of neurodegenerative and cardiovascular diseases. Due to the cellular importance of MRP1, the identification and biochemical/molecular characterization of modulators of MRP1 activity and expression levels are of key interest to cancer research and beyond. This review primarily aims at highlighting the physiological and pharmacological importance of MRP1, known MRP1 modulators, current challenges encountered, and the potential benefits of conducting further research on the MRP1 transporter.
Insights
Multidrug resistance protein 1 (MRP1) is a key efflux transporter implicated in cancer drug resistance and other diseases. Understanding MRP1 modulators is crucial for improving cancer treatment and patient outcomes.
Area of Science:
- Biochemistry and Molecular Biology
- Pharmacology
- Oncology
Background:
- Multidrug resistance protein 1 (MRP1/ABCC1) is an ATP-dependent efflux transporter critical for xenobiotic and drug transport across cell membranes.
- MRP1 plays a vital role in drug disposition, including anticancer agents, antivirals, and antibiotics, influencing their efficacy and cellular barriers.
- Overexpression of MRP1 is a significant clinical marker for multidrug resistance (MDR) in various cancers, leading to treatment failure and reduced survival rates.
Approach:
- This review synthesizes current knowledge on the physiological and pharmacological roles of MRP1.
- It examines known MRP1 modulators and their mechanisms of action.
- The review also discusses existing challenges and future research directions for MRP1-targeted therapies.
Key Points:
- MRP1's involvement extends beyond MDR to include physiological processes like redox homeostasis and steroid metabolism.
- MRP1 overexpression is linked to neurodegenerative and cardiovascular diseases, highlighting its broader pathological relevance.
- Identifying and characterizing MRP1 modulators is a key area of interest for cancer research and therapeutic development.
Conclusions:
- Further research into MRP1 modulators holds significant potential for overcoming drug resistance in cancer.
- Targeting MRP1 could offer novel therapeutic strategies for various diseases associated with its dysregulation.
- A comprehensive understanding of MRP1's function and modulation is essential for advancing clinical treatments.
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