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Review

The p53/microRNA connection in gastrointestinal cancer

, , &
Pages 395-413 | Published online: 30 Sep 2014

Figures & data

Figure 1 Incidence (A) and mortality (B) of indicated gastrointestinal (GI) cancers worldwide. (C) Prevalence of mutations in the TP53 gene in the indicated GI cancers.

Figure 1 Incidence (A) and mortality (B) of indicated gastrointestinal (GI) cancers worldwide. (C) Prevalence of mutations in the TP53 gene in the indicated GI cancers.

Figure 2 Effects of p53 on miRNA biogenesis.

Notes: Wild-type p53 (green) regulates miRNA transcription, processing, and target selection. In contrast, mutant p53 (blue) is unable to induce the expression of miRNAs and additionally inhibits the p63-mediated activation of the miRNA processing protein Dicer.
Abbreviations: mRNA, messenger RNA; miRNA, microRNA; pre-microRNA, miRNA precursor molecule; pri-microRNA, primary miRNA; miRISC, miRNA-induced silencing complex; mut, mutant; RE, response element.
Figure 2 Effects of p53 on miRNA biogenesis.

Table 1 Summary of changes in expression of p53-pathway-related miRNAs in GI cancers

Table 2 Compilation of p53-regulated miRNAs and their alterations in GI cancers

Table 3 Compilation of miRNAs that directly target p53 and their alterations in GI cancers

Figure 3 The role of p53/miRNA axis in (A) p53 autoregulation, (B) cancer cell metabolism, (C) invasion, and metastasis, as a result of the regulation of EMT/MET (D) cancer-associated inflammatory signaling.

Notes: Color code: p53/green; miRNAs/yellow; miRNA-targets/red; green arrow/activation; red arrow/inhibition.
Abbreviations: EMT, epithelial–mesenchymal transition; IL-6, interleukin 6; IL-6R, interleukin 6 receptor; MET, mesenchymal–epithelial transition; miRNA, microRNA; NAD+, nicotinamide adenine dinucleotide; NAMPT, nicotinamide phosphoribosyltransferase.
Figure 3 The role of p53/miRNA axis in (A) p53 autoregulation, (B) cancer cell metabolism, (C) invasion, and metastasis, as a result of the regulation of EMT/MET (D) cancer-associated inflammatory signaling.