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The AKT/mTOR Signaling Pathway Was Mediated through the LINC00514/miR-28-5p/TRIM44 Axis
Lin Wu1, Xingmei Zhu2, Runfeng Wang3
1Department of the Central Laboratory, The Second Affiliated Hospital of Xi'an Medical University, Xi'an 710038, China.
Objective:
Increasing evidence has demonstrated the essential role of lncRNAs in tumorigenesis. LINC00514, a novel lncRNA, was reported to be a promoter of malignant behaviors in cancer, but in pituitary adenoma (PA), its biological functions remain unclear.
Methods:
Herein, we measured LINC00514 expression by RT-qPCR analysis which indicated a significant elevation of LINC00514 expression in human PA tissues. Moreover, the effect of LINC00514 silencing on PA cell proliferation and invasion was, respectively, examined by CCK-8 and transwell assays.
Results:
The results showed that LINC00514 deletion markedly inhibited PA cell proliferation and invasion. Besides, investigation on the molecular mechanisms showed that LINC00514 might function as an endogenous RNA (ceRNA) to sponge miR-28-5p and TRIM44 was mediated by LINC00514-derived miR-28-5p in PA cells. Furthermore, the AKT/mTOR signaling pathway was mediated through the LINC00514/miR-28-5p/TRIM44 axis.
Conclusion:
To sum up, we suggested LINC00514 as a novel therapeutic target for PA treatment.
Insights
Long non-coding RNA LINC00514 promotes pituitary adenoma (PA) cell proliferation and invasion. LINC00514 acts as a ceRNA for miR-28-5p, impacting the AKT/mTOR pathway, suggesting it as a therapeutic target for PA.
Area of Science:
- Endocrinology
- Molecular Biology
- Oncology
Background:
- Long non-coding RNAs (lncRNAs) play crucial roles in tumorigenesis.
- LINC00514 is implicated in various cancers, but its function in pituitary adenoma (PA) is unknown.
Purpose of the Study:
- To investigate the role and molecular mechanism of LINC00514 in pituitary adenoma.
- To evaluate LINC00514 as a potential therapeutic target for PA.
Main Methods:
- LINC00514 expression was quantified using RT-qPCR in PA tissues.
- PA cell proliferation and invasion were assessed after LINC00514 silencing using CCK-8 and transwell assays.
- Molecular mechanisms involving ceRNA activity and signaling pathways were explored.
Main Results:
- LINC00514 expression was significantly elevated in PA tissues.
- LINC00514 silencing inhibited PA cell proliferation and invasion.
- LINC00514 acts as a ceRNA for miR-28-5p, regulating TRIM44 and the AKT/mTOR pathway.
Conclusions:
- LINC00514 promotes PA progression by regulating the LINC00514/miR-28-5p/TRIM44 axis and AKT/mTOR signaling.
- LINC00514 represents a potential therapeutic target for pituitary adenoma treatment.
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