HypoxaMIRs: Key Regulators of Hallmarks of Colorectal Cancer.
Jossimar Coronel-HernándezIzamary Delgado-WaldoDavid Cantú de LeónCesar López-CamarilloNadia Judith Jacobo-HerreraRosalio Ramos PayánCarlos Perez-PlasenciaPublished in: Cells (2022)
Hypoxia in cancer is a thoroughly studied phenomenon, and the logical cause of the reduction in oxygen tension is tumor growth itself. While sustained hypoxia leads to death by necrosis in cells, there is an exquisitely regulated mechanism that rescues hypoxic cells from their fatal fate. The accumulation in the cytoplasm of the transcription factor HIF-1α, which, under normoxic conditions, is marked for degradation by a group of oxygen-sensing proteins known as prolyl hydroxylases (PHDs) in association with the von Hippel-Lindau anti-oncogene (VHL) is critical for the cell, as it regulates different mechanisms through the genes it induces. A group of microRNAs whose expression is regulated by HIF, collectively called hypoxaMIRs, have been recognized. In this review, we deal with the hypoxaMIRs that have been shown to be expressed in colorectal cancer. Subsequently, using data mining, we analyze a panel of hypoxaMIRs expressed in both normal and tumor tissues obtained from TCGA. Finally, we assess the impact of these hypoxaMIRs on cancer hallmarks through their target genes.
Keyphrases
- transcription factor
- papillary thyroid
- endothelial cells
- genome wide identification
- squamous cell
- genome wide
- induced apoptosis
- poor prognosis
- gene expression
- single cell
- lymph node metastasis
- stem cells
- electronic health record
- dna binding
- cell cycle arrest
- mouse model
- bioinformatics analysis
- big data
- binding protein
- long non coding rna
- dna methylation