Interdiction at a protein-protein interface: MCL-1 inhibitors for oncology
1Department of Medicinal Chemistry, Amgen Research, Amgen, Inc., One Amgen Center Drive, Thousand Oaks, CA 91320-1799, USA.
Abstract:
A hallmark of cancer is the evasion of apoptosis. Myeloid cell leukemia-1 (MCL-1) is an anti-apoptotic member of the B-cell lymphoma-2 (BCL-2) family of proteins that regulates the mitochondrial apoptosis pathway. Overexpression of MCL-1 contributes to oncogenesis and confers resistance to cancer treatments. Protein-protein interactions (PPI) are constitutive of the dynamic interplay between the pro- and anti-apoptotic proteins of the BCL-2 family, which is integral to controlling the apoptotic threshold of cells. Therapeutic intervention by small molecule BH3 mimetics to pharmacologically target the PPI and antagonize MCL-1 has made significant progress in recent years in oncology with multiple candidates entering clinical trials. This digest accounts the state-of-art MCL-1 inhibitors with emphasis on their discovery medicinal chemistry, highlighted in structure-based drug design (SBDD) and biological evaluations.
Insights
Myeloid cell leukemia-1 (MCL-1) is crucial for cancer cell survival. New small molecule BH3 mimetics targeting MCL-1 protein-protein interactions show promise in cancer therapy by restoring apoptosis.
Area of Science:
- Oncology
- Molecular Biology
- Drug Discovery
Background:
- Cancer cells evade apoptosis, a programmed cell death process.
- Myeloid cell leukemia-1 (MCL-1) is an anti-apoptotic protein in the BCL-2 family, crucial for cancer cell survival and treatment resistance.
- The balance of pro- and anti-apoptotic protein interactions regulates cell death.
Purpose of the Study:
- To review the current state of MCL-1 inhibitors.
- To highlight the discovery and medicinal chemistry of MCL-1 inhibitors.
- To emphasize structure-based drug design and biological evaluations of these inhibitors.
Main Methods:
- Review of recent literature on MCL-1 inhibitors.
- Focus on structure-based drug design (SBDD) strategies.
- Analysis of biological evaluations of small molecule BH3 mimetics targeting MCL-1.
Main Results:
- Significant progress in developing small molecule BH3 mimetics targeting MCL-1.
- Multiple MCL-1 inhibitor candidates have entered clinical trials.
- Structure-based drug design has been instrumental in optimizing inhibitor potency and selectivity.
Conclusions:
- MCL-1 inhibitors represent a promising therapeutic strategy in oncology.
- Targeting MCL-1 protein-protein interactions offers a viable approach to overcome cancer treatment resistance.
- Continued research in medicinal chemistry and SBDD is vital for advancing MCL-1 targeted therapies.
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