Journal
CANCERS
Volume 14, Issue 23, Pages -Publisher
MDPI
DOI: 10.3390/cancers14235948
Keywords
p53; TGF; metastasis
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The p53 protein family and the TGFb pathway play important roles in tumor growth and metastatic spread. Various isoforms of the p53 protein family, as well as interactions between the p53 protein family and the TGFb pathway, have been found to contribute to the complexity of tumor development.
Simple Summary The p53 protein family is a class of proteins successively known to be the guardians of the genome, but also depending on the different isoforms have pro-tumoral and pro-metastatic potential. This dual potential is also observed within the TGFb pathway. Several interactions between those two proteins family start to explain this complexity. TP53 (TP53), p73 (TP73), and p63 (TP63) are members of the p53 transcription factor family, which has many activities spanning from embryonic development through to tumor suppression. The utilization of two promoters and alternative mRNA splicing has been shown to yield numerous isoforms in p53, p63, and p73. TAp73 is thought to mediate apoptosis as a result of nuclear accumulation following chemotherapy-induced DNA damage, according to a number of studies. Overexpression of the nuclear Delta Np63 and Delta Np73 isoforms, on the other hand, suppresses TAp73's pro-apoptotic activity in human malignancies, potentially leading to metastatic spread or inhibition. Another well-known pathway that has been associated to metastatic spread is the TGF pathway. TGFs are a family of structurally related polypeptide growth factors that regulate a variety of cellular functions including cell proliferation, lineage determination, differentiation, motility, adhesion, and cell death, making them significant players in development, homeostasis, and wound repair. Various studies have already identified several interactions between the p53 protein family and the TGFb pathway in the context of tumor growth and metastatic spread, beginning to shed light on this enigmatic intricacy.
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