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Comparison of Gene Expression Profile Between Tumor Tissue and Adjacent Non-tumor Tissue in Patients with Gastric Gastrointestinal Stromal Tumor (GIST)

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Abstract

Gastrointestinal stromal tumors (GISTs) are defined as spindle cell and/or epithelioid tumors originated from interstitial Cajal cells or precursors in the digestive tract. This study was conducted to identify genes differing in expression between the gastric tumors and the adjacent non-cancerous mucosas in patients with primary gastric GIST. The gene expression profile was determined by using oligonucleotide-based DNA microarrays and further validated by quantitative real-time PCR. The Kyoto encyclopedia of genes and genomes (KEGG) pathway analysis was performed to predict signaling pathways involved in gastric GIST. Our data showed that the expression levels of 957 genes (RAB39B, member RAS oncogene family; VCAN, versican; etc.) were higher and that of 526 genes (CXCL14, chemokine C-X-C motif ligand 14; MTUS1, microtubule-associated tumor suppressor 1; etc.) were lower in the gastric tumor tissues as compared with normal gastric tissues. Results from KEGG pathway analysis revealed that the differentially expressed genes were enriched into 16 signaling transduction pathways, including Hedeghog and Wnt signaling pathways. Our study may provide basis for identification of novel biomarkers associated with primary gastric GIST pathogenesis and for exploration of underlying mechanisms involved in this gastric sarcoma.

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Authors and Affiliations

  1. Department of Gastrointestinal and Nutriology Surgery, Shengjing Hospital of China Medical University, 36 Sanhao Street, Shenyang, 110004, People’s Republic of China

    Youwei Kou, Ying Zhao, Chenhui Bao & Qiang Wang

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  1. Youwei Kou
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  2. Ying Zhao
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  3. Chenhui Bao
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  4. Qiang Wang
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Correspondence to Qiang Wang.

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Kou, Y., Zhao, Y., Bao, C. et al. Comparison of Gene Expression Profile Between Tumor Tissue and Adjacent Non-tumor Tissue in Patients with Gastric Gastrointestinal Stromal Tumor (GIST). Cell Biochem Biophys 72, 571–578 (2015). https://doi.org/10.1007/s12013-014-0504-5

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  • DOI: https://doi.org/10.1007/s12013-014-0504-5

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