[1] PubMed ID: | 32951513 |
Disease Name: | Thyroid Carcinoma, Anaplastic |
Sample: | ATC of papillary thyroid cancer |
Dysfunction Pattern: | Interaction(miR-144 / MET/AKT signalling) |
Validated Method: | In Vivo Experiment//Western Blot//qPCR//Luciferase Report Assay//Invasion Assay |
Description: | In this study, we identified a long noncoding RNA (lncRNA) HOTAIRM1, whose encoding gene was amplified and expression was upregulated in ATC compared with papillary thyroid cancer and normal thyroid. HOTAIRM1 was found to bind ILF3, repress the binding between ILF3 and precursor miR-144 (pre-miR-144), block the effects of ILF3 on stabilizing pre-miR-144, and therefore downregulate pre-miR-144. Intriguingly, HOTAIRM1 was also found to directly bind primary miR-144 (pri-miR-144), repress the binding between pri-miR-144 and DROSHA, block the processing of pri-miR-144 by DROSHA, and therefore upregulate pri-miR-144 and downregulate pre-miR-144. |
Causality: | Yes |
Causal Description: | Functional assays revealed that HOTAIRM1 promoted proliferation, inhibited apoptosis, and promoted migration and invasion of ATC cells in vitro, and promoted ATC tumour growth and metastasis in vivo. |
Clinical-realted Application: | Increased genomic copy number and expression of HOTAIRM1 were both correlated with poor survival of ATC patients. |