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Basic Information

Classification Information

Regulatory Mechanism		Biological Function		Clinical Application
TF		Immune		Survival
Enhancer		Apoptosis		Drug
Variant		Cell Growth		Circulating
MiRNA		EMT		Metastasis
Methylation		Coding Ability		Recurrence

Cancer&Entry Information

Cancer Name	colon cancer
ICD-0-3	C18
Methods	qPCR, Luciferase reporter assay
Sample	The human colon cancer cell lines (HT29, HCT8, HCT-116) and the normal human intestinal epithelial cell line FHC, colon tissues and corresponding adjacent non-tumor tissues
Expression Pattern	up-regulated
Function Description	HOTAIR expression in colon cancer was significantly higher than that in normal tissues. The incidence of distant metastasis was higher in patients with high expression of HOTAIR while their survival rate was lower than that of patients with low HOTAIR expression. Meanwhile, cell proliferation, invasion as well as migration ability of the cells in HOTAIR knockdown group was significantly decreased than those in the negative control group. QRT-PCR results showed that mRNA levels of miR-34a and HOTAIR in colon cancer tissues were negatively correlated. Besides, luciferase reporter gene assay revealed that overexpression of miR-34a significantly attenuated the luciferase activity of the wild-type HOTAIR vector group without attenuating the mutant HOTAIR vector group (p>0.05) In addition, the recovery experiment also found a mutual regulation between HOTAIR and miR-34a, together they could affect the malignant progression of colon cancer.
Pubmed ID	31298326
Year	2019
Title	LncRNA HOTAIR promotes colon cancer development by down-regulating miRNA-34a

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