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

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...

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Main Authors: Anđela Horvat, Ana Tadijan, Ignacija Vlašić, Neda Slade
Format: Article
Language:English
Published: MDPI AG 2021-06-01
Series:Cancers
Subjects:
Online Access:https://www.mdpi.com/2072-6694/13/12/2885
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author Anđela Horvat
Ana Tadijan
Ignacija Vlašić
Neda Slade
author_facet Anđela Horvat
Ana Tadijan
Ignacija Vlašić
Neda Slade
author_sort Anđela Horvat
collection DOAJ
description 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.
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spelling doaj.art-aac2537461c54e09ac2df8adc2a48c842023-11-21T23:22:18ZengMDPI AGCancers2072-66942021-06-011312288510.3390/cancers13122885p53/p73 Protein Network in Colorectal Cancer and Other Human MalignanciesAnđela Horvat0Ana Tadijan1Ignacija Vlašić2Neda Slade3Laboratory for Protein Dynamics, Division of Molecular Medicine, Ruđer Bošković Institute, Bijenička 54, 10000 Zagreb, CroatiaLaboratory for Protein Dynamics, Division of Molecular Medicine, Ruđer Bošković Institute, Bijenička 54, 10000 Zagreb, CroatiaLaboratory for Protein Dynamics, Division of Molecular Medicine, Ruđer Bošković Institute, Bijenička 54, 10000 Zagreb, CroatiaLaboratory for Protein Dynamics, Division of Molecular Medicine, Ruđer Bošković Institute, Bijenička 54, 10000 Zagreb, CroatiaThe 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.https://www.mdpi.com/2072-6694/13/12/2885p53 isoformsp73 isoformscolorectal cancerp53 familyisoform crosstalk
spellingShingle Anđela Horvat
Ana Tadijan
Ignacija Vlašić
Neda Slade
p53/p73 Protein Network in Colorectal Cancer and Other Human Malignancies
Cancers
p53 isoforms
p73 isoforms
colorectal cancer
p53 family
isoform crosstalk
title p53/p73 Protein Network in Colorectal Cancer and Other Human Malignancies
title_full p53/p73 Protein Network in Colorectal Cancer and Other Human Malignancies
title_fullStr p53/p73 Protein Network in Colorectal Cancer and Other Human Malignancies
title_full_unstemmed p53/p73 Protein Network in Colorectal Cancer and Other Human Malignancies
title_short p53/p73 Protein Network in Colorectal Cancer and Other Human Malignancies
title_sort p53 p73 protein network in colorectal cancer and other human malignancies
topic p53 isoforms
p73 isoforms
colorectal cancer
p53 family
isoform crosstalk
url https://www.mdpi.com/2072-6694/13/12/2885
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AT ignacijavlasic p53p73proteinnetworkincolorectalcancerandotherhumanmalignancies
AT nedaslade p53p73proteinnetworkincolorectalcancerandotherhumanmalignancies