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Original Article
- Endocrine Research
- Transcriptome Analysis Identifies an Attenuated Local Immune Response in Invasive Nonfunctioning Pituitary Adenomas
- Yong Hwy Kim, Jung Hee Kim
- Endocrinol Metab. 2019;34(3):314-322. Published online September 26, 2019
- DOI: https://doi.org/10.3803/EnM.2019.34.3.314
- Correction in: Endocrinol Metab 2020;35(4):965
- 5,306 View
- 58 Download
- 12 Web of Science
- 12 Crossref
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Abstract
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Supplementary Material
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ePub Background Invasive nonfunctioning pituitary adenomas (NFPAs) remain challenging due to their high complication rate and poor prognosis. We aimed to identify the distinctive molecular signatures of invasive NFPAs, compared with noninvasive NFPAs, using gene expression profiling by RNA sequencing.
Methods We obtained frozen fresh tissue samples from 14 patients with NFPAs who underwent primary transsphenoidal surgery. Three non-invasive and 11 invasive NFPAs were used for RNA sequencing. The bioinformatics analysis included differential gene expression, gene ontology analysis, and pathway analysis.
Results A total of 700 genes were differentially expressed (59 up-regulated and 641 down-regulated genes) between invasive and non-invasive NFPAs (false discovery rate <0.1, and |fold change| ≥2). Using the down-regulated genes in invasive NFPAs, gene ontology enrichment analyses and pathway analyses demonstrated that the local immune response was attenuated and that transforming growth factor-β (TGF-β) RII-initiated TGF-β signaling was down-regulated in invasive NFPAs. The overexpression of claudin-9 (
CLDN9 ) and the down-regulation of insulin-like growth factor-binding protein 5 (IGFBP5 ), death-associated protein kinase 1 (DAPK1 ), and tissue inhibitor of metalloproteinase-3 (TIMP3 ) may be related with invasiveness in NFPAs.Conclusion Invasive NFPAs harbor different gene expression profiles relative to noninvasive NFPAs. In particular, local suppression of the immune response and TGF-β signaling can make PAs prone to invasiveness.
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Citations
Citations to this article as recorded by
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