Abstract
Aim: To analyze the biological role of the long non-coding RNA LINK-A. Materials and Methods: An 850-bp segment from the second exon of LINK-A was removed using the CRISPR/Cas9 system in OVCA433 ovarian serous carcinoma cells. Spheroid formation, migration, invasion, proliferation, matrix metalloproteinase (MMP) activity and expression of cell-signaling proteins were assessed in vitro. Results: OVCA433 cells with LINK-A deletion were more invasive (p=0.0008) but had reduced migration and MMP9 secretion compared to controls (p=0.003 and p=0.005, respectively). LINK-A deletion did not affect proliferation but induced phosphorylation of extracellular signal-regulated kinase (10-fold; p=0.005). LINK-A knock out additionally reduced spheroid formation. Conclusion: Added to our previous data from analysis of clinical specimens, LINK-A is likely to be a tumor suppressor.
Original language | English |
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Pages (from-to) | 6677-6684 |
Number of pages | 8 |
Journal | Anticancer Research |
Volume | 40 |
Issue number | 12 |
DOIs | |
State | Published - Dec 2020 |
Bibliographical note
Publisher Copyright:© 2020 International Institute of Anticancer Research. All rights reserved.
Keywords
- CRISPR/Cas9
- High-grade serous carcinoma
- In vitro
- LINK-A
- Long non-coding RNA
- Tumorigenesis