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Published on: August 23, 2019
NRXN2 Possesses a Tumor Suppressor Potential via Inhibiting the Growth of Thyroid Cancer Cells
1Department of Endocrinology, Liangzhu Hospital, Moganshan Road, Hangzhou, Zhejiang, China 311113.
Abstract:
Thyroid cancer (THCA) is a common endocrine malignant tumor, and its global incidence of THCA has increased significantly. Neurexin 2 (NRXN2) is involved in the progression of some diseases. Nevertheless, it is still elusive towards the clinical implication and function of NRXN2 in THCA. As The Cancer Genome Atlas (TCGA) data demonstrated, we conducted a study to explore the links between NRXN2 expression and clinical features. Additionally, our data exhibited that, compared to normal thyroid tissues, NRXN2 showed low expression in THCA tissues. 20 important genes associated with NRXN2 were screened and identified. KEGG analysis data displayed that NRXN2 exhibited a link to the neuronal system, insulin secretion modulation, energy metabolism integration, muscle contraction, cardiac conduction, and neural adhesion molecule 1 (NCAM1) interactions. Our results in depth affirmed that NRXN2 was decreased in the tissues and cell lines of THCA patients. Functionally, we proved that overexpressing NRXN2 resulted in an inhibition of THCA cell proliferation, migration, and invasion in vitro. Collectively, our study demonstrated that, for the first time, NRXN2 behaved as an inhibitor of neoplasm and a promising biomarker in THCA.
Insights
Neurexin 2 (NRXN2) is downregulated in thyroid cancer (THCA). Overexpressing NRXN2 inhibits THCA cell growth and metastasis, identifying NRXN2 as a potential tumor inhibitor and biomarker.
Area of Science:
- Endocrinology
- Oncology
- Molecular Biology
Background:
- Thyroid cancer (THCA) incidence is rising globally.
- Neurexin 2 (NRXN2) role in THCA remains unclear.
- NRXN2 is implicated in various disease progressions.
Purpose of the Study:
- Investigate NRXN2 expression in THCA.
- Determine the clinical significance and function of NRXN2 in THCA.
- Explore NRXN2's association with clinical features and biological pathways.
Main Methods:
- Utilized The Cancer Genome Atlas (TCGA) data for expression analysis.
- Screened and identified 20 genes associated with NRXN2.
- Performed KEGG pathway analysis.
- Conducted in vitro experiments to assess NRXN2's functional impact on THCA cells.
Main Results:
- NRXN2 expression is significantly decreased in THCA tissues and cell lines compared to normal tissues.
- NRXN2 is linked to neuronal system functions, metabolism, and cell adhesion pathways.
- Overexpression of NRXN2 suppressed THCA cell proliferation, migration, and invasion in vitro.
Conclusions:
- NRXN2 acts as a tumor suppressor in thyroid cancer.
- NRXN2 demonstrates potential as a diagnostic biomarker for THCA.
- NRXN2 warrants further investigation for therapeutic strategies in THCA.
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