Understanding and circumventing resistance to anticancer monoclonal antibodies
Lina Reslan1, Stéphane Dalle, Charles Dumontet
1Inserm U590, Lyon, France.
Abstract:
With the widespread use of therapeutic monoclonal antibodies in the treatment of patients with cancer, resistance to these agents has become a major issue. Preclinical models of drug action or resistance have contributed to unravel the main mechanisms of resistance, involving both tumor-associated and host related factors. However our understanding of how a monoclonal antibody destroys cancer cells in a patient and why it one day stops being effective are still far from being complete. This review focuses on the available data on mechanisms of action and resistance to rituximab and includes some additional information for other monoclonal antibodies. Innovative approaches designed to overcome resistance, such as combination immunotherapy, costimulation with cytokines or growth factors are presented.
Insights
Monoclonal antibody therapy for cancer can become ineffective due to resistance. Understanding resistance mechanisms and exploring new strategies like combination immunotherapy are crucial for improving treatment outcomes.
Area of Science:
- Oncology
- Immunology
- Pharmacology
Background:
- Therapeutic monoclonal antibodies (mAbs) are widely used in cancer treatment.
- Resistance to mAbs is a significant clinical challenge, limiting treatment efficacy.
- Mechanisms of resistance involve complex tumor-associated and host factors.
Purpose of the Study:
- To review mechanisms of action and resistance to rituximab (an mAb).
- To discuss resistance to other therapeutic monoclonal antibodies.
- To present innovative strategies for overcoming mAb resistance.
Main Methods:
- Literature review of preclinical and clinical data on mAb action and resistance.
- Focus on rituximab, with comparative insights from other mAbs.
- Exploration of novel therapeutic approaches.
Main Results:
- Resistance to monoclonal antibodies is multifactorial, involving tumor and host elements.
- The precise mechanisms of mAb-induced cancer cell death and resistance development require further elucidation.
- Combination immunotherapy and cytokine/growth factor costimulation show promise.
Conclusions:
- Further research is needed to fully understand monoclonal antibody efficacy and resistance.
- Innovative strategies are being developed to overcome treatment resistance.
- Combination approaches may enhance the effectiveness of monoclonal antibody therapy in cancer patients.
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