PRR15 Is a Novel Diagnostic and Prognostic Biomarker in Papillary Thyroid Cancer and Modulates the Tumor Microenvironment

作者全名："Wang, Lingli; Deng, Xiaoqing; Chen, Yi; Zhao, Yixia; Li, Zhirong"

作者地址："[Wang, Lingli; Chen, Yi] Army Med Univ, Daping Hosp, Dept Breast & Thyroid Surg, Chongqing, Peoples R China; [Deng, Xiaoqing] Chongqing Med Univ, Affiliated Hosp 1, Dept Nephrol, Chongqing, Peoples R China; [Zhao, Yixia] Chongqing Univ Canc Hosp, Dept Pharm, Chongqing, Peoples R China; [Li, Zhirong] Chongqing Med Univ, Univ Town Hosp, Digest Ctr, Chongqing, Peoples R China"

通信作者："Zhao, YX (通讯作者)，Chongqing Univ Canc Hosp, Dept Pharm, Chongqing, Peoples R China.; Li, ZR (通讯作者)，Chongqing Med Univ, Univ Town Hosp, Digest Ctr, Chongqing, Peoples R China."

来源：JOURNAL OF ONCOLOGY

ESI学科分类：CLINICAL MEDICINE

WOS号：WOS:000865418500005

JCR分区：Q2

影响因子：4.501

年份：2022

卷号：2022

期号：　

开始页：　

结束页：　

文献类型：Article

关键词：　

摘要："Papillary thyroid cancer (PTC), accounting for more than 80 percent of all cases of thyroid cancer, is a form of a cancerous tumor that has a very favorable prognosis. However, patients diagnosed with PTC who are already in an advanced state have a dismal outlook. This study aimed to establish the diagnostic relevance of PRR15 expression in PTC patients as well as its levels in PTC samples and its connection with immune infiltrates. The TCGA and GEO datasets were combed through to obtain information on PTC patients. The ""Limma"" program was used to screen for differentially expressed mRNAs (DEMs), and the results were displayed using volcano plots and heat maps. The Wilcoxon test was used to examine the level of PRR15 expression in PTC patients in comparison with that of normal tissues. To study the connection between the immune infiltration level and PRR15 expression in PTC, the single-sample sequence set enrichment analysis (ssGSEA) from the R package was utilized. The expression of PRR15 was analyzed with RT-PCR in PTC cells and normal cells. In order to evaluate the diagnostic significance of PRR15 expression, ROC assays were carried out. Experiments using CCK-8 were carried out to investigate the impact that PRR15 knockdown could have on the proliferation of PTC cells. In this study, 17 overlapped DEMs between PTC specimens and normal specimens were identified, including MPPED2, IPCEF1, SLC4A4, PKHD1L1, DIO1, CRABP1, TPO, TFF3, SPX, TCEAL2, ZCCHC12, SYTL5, PRR15, CHI3L1, SERPINA1, GABRB2, and CITED1. Our attention focused on PRR15 which was highly expressed in PTC specimens as compared with nontumor specimens. PRR15 had an AUC value of 0.926 (95% CI 0.902-0.950) for PTC based on TCGA datasets. Pan-cancer assays suggested PRR15 as an oncogenic gene in many types of tumors. Moreover, we found that PRR15 expression was positively correlated with eosinophils, NK cells, NK CD56bright cells, IDC, macrophages, DC, mast cells, and Th1 cells. Further investigations with CCK-8 demonstrated that inhibiting PRR15 resulted in a decrease in the proliferation of PTC cells. Overall, PRR15 was confirmed to be a biomarker for PTC patients and a predictor of response to immunotherapy."

基金机构："Chongqing Medical Scientific Research Project (Joint project of Chongqing Health Commission and Science and Technology Bureau) [2020MSXM016, 2021MSXM207]"

基金资助正文："This work was supported by Chongqing Medical Scientific Research Project (Joint project of Chongqing Health Commission and Science and Technology Bureau, 2020MSXM016 and 2021MSXM207)."