The Role of MDM2 in Tumor Biology and Cancer Therapy

A special issue of Cells (ISSN 2073-4409). This special issue belongs to the section "Cell and Gene Therapy".

Deadline for manuscript submissions: closed (31 December 2024) | Viewed by 2002

Special Issue Editors


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Guest Editor
College of Pharmacy, University of Houston, Houston, TX 77204-5037, USA
Interests: oncogene; tumor supressor; drug discovery and development; targeted therapy; cancer prevention
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Guest Editor
Pharmaceutical Sciences Department, College of Pharmacy, Rosalind Franklin University of Medicine and Science, North Chicago, IL, USA
Interests: drug discovery; molecular targets; pharmacology; chemical; biology; membrane transporters; flow cytometry
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The MDM2 (Mouse Double Minute 2) oncogene is one of the most-investigated oncogenes, and its p53-dependent and p53-independent activities have been well demonstrated. Recent research has made several breakthrough discoveries. For instance, the in-depth analysis of MDM2-p53 interaction has led to the discovery of novel modulators of this classical pathway and continued efforts to develop and optimize small molecule inhibitors targeting the MDM2-p53 interaction. The exploration of MDM2 in tumor metabolism has shown the role of MDM2 in regulating several metabolic pathways, which could provide insights into novel therapeutic strategies. Beyond its role in the regulation of p53, there has been an increased focus on the non-canonical functions of MDM2, indicating its involvement in DNA repair, chromatin remodeling, and other cellular processes that contribute to tumorigenesis. Studies exploring the interactions between MDM2 and the tumor microenvironment have shown that MDM2 influences immune responses, angiogenesis, and the extracellular matrix within the tumor microenvironment. There are increasing investigations into the crosstalk between MDM2 and epigenetic regulators such as chromatin-modifying enzymes and other epigenetic modifiers. Advances in structural biology and computational modeling have contributed to a deeper understanding of the MDM2-p53 interaction. The role of MDM2 in cancer stem cells has been implicated in tumor initiation, progression, and treatment resistance. Finally, MDM2 as a therapeutic target has been demonstrated in different cancer types, including less well-studied or rare cancers. Investigating mechanisms of resistance to MDM2 inhibitors is crucial for optimizing treatment strategies. Additionally, combining MDM2 inhibitors with immunotherapy approaches is an area of interest. This Special Issue will cover the latest advances made in the last few years.

Prof. Dr. Ruiwen Zhang
Dr. John Buolamwini
Guest Editors

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Keywords

  • MDM2
  • p53
  • targeted therapy
  • imunotherapy
  • drug resistance

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Published Papers (1 paper)

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11 pages, 670 KiB  
Review
Targeting Hdm2 and Hdm4 in Anticancer Drug Discovery: Implications for Checkpoint Inhibitor Immunotherapy
by Monde Ntwasa
Cells 2024, 13(13), 1124; https://doi.org/10.3390/cells13131124 - 29 Jun 2024
Viewed by 1567
Abstract
Hdm2 and Hdm4 are structural homologs that regulate the tumor suppressor protein, p53. Since some tumors express wild-type p53, Hdm2 and Hdm4 are plausible targets for anticancer drugs, especially in tumors that express wild-type p53. Hdm4 can enhance and antagonize the activity of [...] Read more.
Hdm2 and Hdm4 are structural homologs that regulate the tumor suppressor protein, p53. Since some tumors express wild-type p53, Hdm2 and Hdm4 are plausible targets for anticancer drugs, especially in tumors that express wild-type p53. Hdm4 can enhance and antagonize the activity of Tp53, thereby playing a critical role in the regulation of p53’s activity and stability. Moreover, Hdm2 and Hdm4 are overexpressed in many cancers, some expressing wild-type Tp53. Due to experimental evidence suggesting that the activation of wild-type Tp53 can augment the antitumor activity by some checkpoint inhibitors, drugs targeting Hdm2 and Hdm4 may be strong candidates for combining with checkpoint inhibitor immunotherapy. However, other evidence suggests that the overexpression of Hdm2 and Hdm4 may indicate poor response to immune checkpoint inhibitors. These findings require careful examination and scrutiny. In this article, a comprehensive analysis of the Hdm2/Hdm4 partnership will be conducted. Furthermore, this article will address the current progress of drug development regarding molecules that target the Hdm2/Hdm4/Tp53 partnership. Full article
(This article belongs to the Special Issue The Role of MDM2 in Tumor Biology and Cancer Therapy)
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