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Immune Checkpoint Inhibitors in the Treatment of Cancer
1Department of Analytical and Food Chemistry, Faculty of Pharmacy, Al-Wadi International University, Homs, Syrian Arab Republic.
Background:
Immunotherapy drugs, known as immune checkpoint inhibitors (ICIs), work by blocking checkpoint proteins from binding with their partner proteins. The two main pathways that are specifically targeted in clinical practice are cytotoxic T-lymphocyte antigen-4 (CTLA- 4) and programmed cell death protein 1 (PD-1) that showed potent immune-modulatory effects through their function as negative regulators of T cell activation.
Methods:
In view of the rapid and extensive development of this research field, we conducted a comprehensive review of the literature and updated on the use of CTLA-4, PD-1, and PD-L1 targeted therapy in the treatment of several types of cancer, including melanoma, non-small-cell lung carcinoma, breast cancer, hepatocellular carcinoma, Hodgkin lymphoma, cervical cancer, and head and neck squamous cell carcinoma.
Results:
Based on the last updated list released on March 2019, seven ICIs are approved by the FDA, including ipilimumab, pembrolizumab, nivolumab, atezolizumab, avelumab, durvalumab, and cemiplimab.
Conclusion:
This review highlighted the most common adverse effects caused by ICIs which affect people in different ways.
Insights
Immune checkpoint inhibitors (ICIs) block checkpoint proteins to enhance anti-cancer immune responses. This review summarizes ICI therapies targeting CTLA-4 and PD-1/PD-L1 pathways in various cancers and their common side effects.
Area of Science:
- Oncology
- Immunology
Background:
- Immune checkpoint inhibitors (ICIs) are immunotherapy drugs that block checkpoint proteins, thereby modulating T cell activation.
- Key targets include cytotoxic T-lymphocyte antigen-4 (CTLA-4) and programmed cell death protein 1 (PD-1) pathways, which negatively regulate T cell responses.
Purpose of the Study:
- To provide a comprehensive literature review on the use of CTLA-4, PD-1, and PD-L1 targeted therapy.
- To update on the application of these therapies in various cancer types.
Main Methods:
- Comprehensive literature review.
- Focused on therapies targeting CTLA-4, PD-1, and PD-L1.
Main Results:
- Seven ICIs are FDA-approved as of March 2019: ipilimumab, pembrolizumab, nivolumab, atezolizumab, avelumab, durvalumab, and cemiplimab.
- ICI therapy is utilized in treating melanoma, non-small-cell lung carcinoma, breast cancer, hepatocellular carcinoma, Hodgkin lymphoma, cervical cancer, and head and neck squamous cell carcinoma.
Conclusions:
- This review highlights the common adverse effects associated with ICI treatments.
- Adverse effects of ICIs vary among individuals.
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