| Expression pattern: |
UP |
| Associated gene: |
IL-6, Ago2 |
| Associated microRNA: |
miR-1253 |
| Biological function: |
promotes cisplatin (DDP) chemoresistance; enhances DDP IC50; knockdown increases DDP sensitivity |
| Molecular mechanism: |
Acts as a miRNA sponge for miR-1253, thereby promoting IL-6 upregulation and cisplatin chemoresistance. |
| Biological pathway or process: |
chemoresistance (promotes); ceRNA regulation (promotes) |
| Detected method: |
Q
|
| Validation methods: |
RT-qPCR; RNase R Treatment; Actinomycin D / DRB Stability Assay; Nuclear-Cytoplasmic Fractionation; Clinical Sample Validation; Transfection; CCK8; RIP (RNA Immunoprecipitation); Luciferase Reporter Assay |
| Clinical significance: |
High hsa_circ_0000190 is associated with advanced TNM stage and larger tumor size in NSCLC patients. |
| Description: |
hsa_circ_0000190 is up-regulated in cisplatin-resistant NSCLC tissues and resistant cell sublines and promotes DDP chemoresistance. Mechanistically, it mainly localizes to the cytoplasm and acts as a sponge for miR-1253, relieving repression of IL-6 and thereby increasing IL-6 levels to support resistance. |
| Confidence score: |
0.7726 |