4.7 Article

Identification of critical pathways and potential therapeutic targets in poorly differentiated duodenal papilla adenocarcinoma

Journal

CANCER CELL INTERNATIONAL
Volume 21, Issue 1, Pages -

Publisher

BMC
DOI: 10.1186/s12935-020-01709-7

Keywords

Duodenal papilla carcinoma; Biomarker; Differentially expressed genes; RNA-seq

Categories

Funding

  1. Postdoctoral Research Project in Henan Province and Medical science and technology research project of Henan Provincial Department of health [201403177, 201701021]

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A total of 110 differentially expressed genes (DEGs) were identified in DPC, enriching our understanding of the biology and pathogenesis underlying the disease. Five hub genes were screened out as potential therapeutic targets for DPC.
BackgroundDuodenal papilla carcinoma (DPC) is a rare malignancy of the gastrointestinal tract with high recurrence rate, and the pathogenesis of this highly malignant neoplasm is yet to be fully elucidated. This study aims to identify key genes to further understand the biology and pathogenesis underlying the molecular alterations driving DPC, which could be potential diagnostic or therapeutic targets.MethodsTumor samples of three DPC patients were collected and integrating RNA-seq analysis of tumor tissues and matched normal tissues were performed to discover differentially expressed genes (DEGs). Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analysis were carried out to understand the potential bio-functions of the DPC differentially expressed genes (DEGs). Protein-protein interaction (PPI) network was constructed for functional modules analysis and identification of hub genes. qRT-PCR of clinical samples was conducted to validate the expression level of the hub genes.ResultsA total of 110 DEGs were identified from our RNA-seq data, GO and KEGG analyses showed that the DEGs were mainly enriched in multiple cancer-related functions and pathways, such as cell proliferation, IL-17signaling pathway, Jak-STAT signaling pathway, PPAR signaling pathway. The PPI network screened out five hub genes including IL-6, LCN2, FABP4, LEP and MMP1, which were identified as core genes in the network and the expression value were validated by qRT-PCR. The hub genes identified in this work were suggested to be potential therapeutic targets of DPC.DiscussionThe current study may provide new insight into the exploration of DPC pathogenesis and the screened hub genes may serve as potential diagnostic indicator and novel therapeutic target.

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