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Published on: November 10, 2013
Metal-Based Anticancer Complexes and p53: How Much Do We Know?
Samah Mutasim Alfadul1, Egor M Matnurov1, Alexander E Varakutin1
1Drug Discovery Lab, Department of Chemistry, City University of Hong Kong, 83 Tat Chee Avenue, Hong Kong SAR 999077, China.
Abstract:
P53 plays a key role in protecting the human genome from DNA-related mutations; however, it is one of the most frequently mutated genes in cancer. The P53 family members p63 and p73 were also shown to play important roles in cancer development and progression. Currently, there are various organic molecules from different structural classes of compounds that could reactivate the function of wild-type p53, degrade or inhibit mutant p53, etc. It was shown that: (1) the function of the wild-type p53 protein was dependent on the presence of Zn atoms, and (2) Zn supplementation restored the altered conformation of the mutant p53 protein. This prompted us to question whether the dependence of p53 on Zn and other metals might be used as a cancer vulnerability. This review article focuses on the role of different metals in the structure and function of p53, as well as discusses the effects of metal complexes based on Zn, Cu, Fe, Ru, Au, Ag, Pd, Pt, Ir, V, Mo, Bi and Sn on the p53 protein and p53-associated signaling.
Insights
The tumor suppressor protein p53 is vital for genome stability but often mutated in cancer. This review explores how metals like zinc influence p53 function, potentially offering new cancer treatment strategies.
Area of Science:
- Molecular Biology
- Cancer Research
- Biochemistry
Background:
- The p53 protein is crucial for genomic integrity and is frequently mutated in various cancers.
- p53 family members, p63 and p73, also contribute to cancer development and progression.
- Current therapeutic strategies involve organic molecules targeting wild-type or mutant p53 functions.
Purpose of the Study:
- To investigate the role of metals in the structure and function of the p53 protein.
- To explore the potential of metal-p53 interactions as a cancer vulnerability.
- To review the effects of various metal complexes on p53 and its associated signaling pathways.
Main Methods:
- Literature review focusing on the impact of metals on p53.
- Analysis of studies detailing the dependence of wild-type p53 on zinc.
- Examination of research on zinc supplementation restoring mutant p53 conformation.
Main Results:
- Wild-type p53 protein function is dependent on the presence of zinc atoms.
- Zinc supplementation can restore the altered conformation of mutant p53 protein.
- Various metal complexes (Zn, Cu, Fe, Ru, Au, Ag, Pd, Pt, Ir, V, Mo, Bi, Sn) impact p53 protein and signaling.
Conclusions:
- The interaction between p53 and metals, particularly zinc, presents a potential avenue for cancer therapy.
- Metal-based compounds offer diverse mechanisms to modulate p53 activity in cancer.
- Further research into metal-p53 interactions could lead to novel anti-cancer strategies.
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