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Article type: Research Article
Authors: Zhang, Zheng; 1 | Zhao, Shuangshuang; 1 | Wang, Keke | Shang, Mengyuan | Chen, Zheming | Yang, Haizhen | Chen, Yanwei | Chen, Baoding; *
Affiliations: Department of Medical Ultrasound, Affiliated Hospital of Jiangsu University, Zhenjiang, People’s Republic of China
Correspondence: [*] Corresponding author: Baoding Chen, Department of Medical Ultrasound, Affiliated Hospital of Jiangsu University, Zhenjiang, People’s Republic of China. Tel.:+86 1351 1696 205; E-mail: [email protected].
Note: [1] These authors contributed equally to this work.
Abstract: Integrated analysis of accumulated data is an effective way to obtain reliable potential diagnostic molecular of cervical lymph node metastases (LNM) in papillary thyroid carcinoma (PTC). The benefits of prophylactic lymph node dissection (PLND) for these clinically node-negative (cN0) patients remained considerable controversies. Hence, elucidation of the mechanisms of LNM and exploration of potential biomarkers and prognostic indicators are essential for accurate diagnosis of LNM in PTC patients. Up to date, advanced microarray and bioinformatics analysis have advanced an understanding of the molecular mechanisms of disease occurrence and development, which are necessary to explore genetic changes and identify potential diagnostic biomarkers. In present study, we performed a comprehensive analysis of the differential expression, biological functions, and interactions of LNM-related genes. Two publicly available microarray datasets GSE60542 and GSE129562 were available from Gene Expression Omnibus (GEO) database. Differentially expressed genes between clinically node-positive (cN1) and cN0 PTC samples were screened by an integrated analysis of multiple gene expression profile after gene reannotation and batch normalization. Our results identified 48 differentially expressed genes (DEGs) genetically associated with LNM in PTC patients. Gene ontology (GO) analyses revealed the changes in the modules were mostly enriched in the regulation of MHC class II receptor activity, the immune receptor activity, and the peptide antigen binding. Kyoto encyclopedia of genes and genomes (KEGG) enrichment analysis of DEGs displayed the intestinal immune network for IgA production, staphylococcus aureus infection, and cell adhesion molecules (CAMs). To screen core genes related to LNM of PTC from the protein-protein interaction network, top 10 hub genes were identified with highest scores. Our results help us understand the exact mechanisms underlying the metastasis of cervical LNM in PTC tissues and pave an avenue for the progress of precise medicine for individual patients.
Keywords: Lymph node metastasis (LNM), papillary thyroid carcinoma (PTC), hub genes, protein-protein interaction network (PPI)
DOI: 10.3233/CH-201074
Journal: Clinical Hemorheology and Microcirculation, vol. 78, no. 2, pp. 117-126, 2021
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