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p53/p73 Protein Network in Colorectal Cancer and Other Human Malignancies

Horvat, Anđela; Tadijan, Ana; Vlašić, Ignacija; Slade, Neda (2021) p53/p73 Protein Network in Colorectal Cancer and Other Human Malignancies. Cancers, 13 (12). ISSN 2072-6694

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The p53 tumor suppressor protein is crucial for cell growth control and the maintenance of genomic stability. Later discovered, p63 and p73 share structural and functional similarity with p53. To understand the p53 pathways more profoundly, all family members should be considered. Each family member possesses two promoters and alternative translation initiation sites, and they undergo alternative splicing, generating multiple isoforms. The resulting isoforms have important roles in carcinogenesis, while their expression is dysregulated in several human tumors including colorectal carcinoma, which makes them potential targets in cancer treatment. Their activities arise, at least in part, from the ability to form tetramers that bind to specific DNA sequences and activate the transcription of target genes. In this review, we summarize the current understanding of the biological activities and regulation of the p53/p73 isoforms, highlighting their role in colorectal tumorigenesis. The analysis of the expression patterns of the p53/p73 isoforms in human cancers provides an important step in the improvement of cancer therapy. Furthermore, the interactions among the p53 family members which could modulate normal functions of the canonical p53 in tumor tissue are described. Lastly, we emphasize the importance of clinical studies to assess the significance of combining the deregulation of different members of the p53 family to define the outcome of the disease.

Item Type: Article
Uncontrolled Keywords: p53 isoforms ; p73 isoforms ; colorectal cancer ; p53 family ; isoform crosstalk
Subjects: NATURAL SCIENCES > Biology
Divisions: Division of Molecular Medicine
Project titleProject leaderProject codeProject type
Otkrivanje novih proteinskih interakcija kao podloga za nove pristupe liječenju melanoma čovjekaSlade, NedaIP-2013-11-1615HRZZ
Depositing User: Ana Tadijan
Date Deposited: 04 Aug 2021 11:01
DOI: 10.3390/cancers13122885

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