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A therapeutic patent overview of MDM2/X-targeted therapies (2014-2018)
Lukasz Skalniak1, Ewa Surmiak1, Tad A Holak1
1a Department of Organic Chemistry, Faculty of Chemistry , Jagiellonian University , Krakow , Poland.
Introduction:
MDM2 and MDMX proteins provide the inhibition of p53 tumor suppressor, thus allowing for accelerated mutation-driven cancer microevolution. A pharmacological blockade of MDM2/X-p53 interaction results in p53 reactivation in p53wt cells, leading to cancer growth inhibition. Throughout the past 20 years, multiple chemical entities have been proposed to reactivate p53 by antagonizing MDM2/X proteins.
Areas Covered:
This manuscript reviews 2014-2018 therapeutic patents in the field of MDM2/X antagonists and is a continuation of previous reviews on similar matter. The patents covering the use of MDM2/X antagonists in drug combinations are also presented in this review, as they constitute an important trend in the field of cancer treatment with MDM2/X antagonists.
Expert Opinion:
In the years 2014-2018, several previously-known chemical scaffolds have been further developed and disclosed. Importantly, in the same time period, many lead compounds have entered clinical trials for the treatment of cancer patients. Meanwhile, several important reports have pointed to serious limitations of anticancer properties of MDM2 antagonists. As a result, many efforts have been made to seek for positive, synergistic therapeutic effects of combined anti-cancer treatment strategies. One recent example is a dual targeting of MDM2 and additional protein targets by utilizing the PROTAC technology.
Insights
MDM2/X antagonists reactivate the p53 tumor suppressor to inhibit cancer growth. Recent patents (2014-2018) show advancements in these drugs, including combination therapies and novel PROTAC technologies.
Area of Science:
- Oncology
- Molecular Biology
- Drug Discovery
Background:
- MDM2 and MDMX proteins inhibit the p53 tumor suppressor, promoting cancer evolution.
- Blocking MDM2/X-p53 interaction reactivates p53, inhibiting cancer growth in p53 wild-type cells.
- Numerous chemical entities have been developed to antagonize MDM2/X and reactivate p53 over the past two decades.
Purpose of the Study:
- To review therapeutic patents for MDM2/X antagonists from 2014-2018.
- To present patents involving drug combinations with MDM2/X antagonists.
- To highlight trends and advancements in the field of MDM2/X antagonists for cancer treatment.
Main Methods:
- Review of therapeutic patents published between 2014 and 2018.
- Analysis of patents focusing on MDM2/X antagonists and their use in cancer therapy.
- Identification of patents related to combination treatments and novel technologies like PROTAC.
Main Results:
- Several known chemical scaffolds for MDM2/X antagonists were further developed.
- Numerous lead compounds entered clinical trials for cancer patients during this period.
- Limitations of MDM2 antagonists spurred research into combination strategies and dual-targeting approaches (e.g., PROTAC).
Conclusions:
- The period 2014-2018 saw significant progress in the development of MDM2/X antagonists.
- Combination therapies and novel targeting strategies like PROTAC are emerging trends to overcome limitations.
- Continued research into MDM2/X antagonists holds promise for improved cancer treatment outcomes.
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