Journal of Diagnostics Concepts & Practice››2022,Vol. 21››Issue (04): 490-496.doi:10.16150/j.1671-2870.2022.04.012

• Original articles •Previous ArticlesNext Articles

Pan-cancer analysis of plasmacytoma variant translocation 1 andMYCgene expression pattern and survival prediction

MA Xuefei1,2, WANG Xuefeng1(), WANG Kankan2()

  1. 1. Department of Laboratory Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
    2. Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
  • Received:2022-06-15Online:2022-08-25Published:2022-11-07
  • Contact:WANG Xuefeng,WANG Kankan E-mail:wxf63@shsmu.edu.cn;kankanwang@shsmu.edu.cn

Abstract:

Objective:To explore the expression levels and survival prediction of plasmacytoma variant translocation 1 (PVT1) andMYCgene in pan-cancer.Methods:The clinic data and RNA-seq data from 31 types of cancer tissues totaling 10 016 cases were retrieved from The Cancer Genome Atlas (TCGA) database, among which 23 types of cancer with adjacent tissues as normal controls. Studentt-tests were used to analyze the significant differences ofPVT1orMYCgene expression levels between cancer tissues and corresponding normal controls. Spearman correlation was used to analyze the expression correlation betweenPVT1andMYCin 31 types of cancer. The relationship betweenPVT1orMYCexpression and overall survival of 31 types of cancer patients was depicted by the Kaplan-Meier curve and Cox proportional hazards model.Results:=PVT1expression was highly expressed in 19 types of cancer(P<0.05) and lowly expressed in 2 types of cancer (P<0.05).MYCexpression was significantly upregulated in 7 types of cancer (P<0.05) and downregulated in 6 types of cancer (P<0.05). Expression correlation analysis presented thatPVT1expression was positively correlated withMYCin about 87% (27/31) types of cancer (Rho>0,P<0.01). Finally, survival analysis showed that relatively high expression ofPVT1was significantly associated with shorter overall survival in bladder urothelial carcinoma, breast invasive carcinoma, adrenocortical carcinoma, renal clear cell carcinoma, renal papillary cell carcinoma, lower grade glioma, prostate adenocarcinoma, testicular germ cell tumors and uveal melanoma (log-rankP<0.05). The relatively high expression group ofMYCwas significantly correlated with shorter overall survival in adrenocortical carcinoma, bladder urothelial carcinoma, cervical squamous cell carcinoma, head and neck squamous cell carcinoma, renal papillary cell carcinoma, ovarian serous cystadenocarcinoma, pancreatic adenocarcinoma and sarcoma (log-rankP<0.05), while was associated with long-time survival in lower grade glioma and rectum adenocarcinoma (log-rankP<0.05).Conclusions:The increased expression ofPVT1in pan-cancer is more prevalent than that ofMYC. The positive correlation betweenPVT1andMYCindicates a potential regulatory relationship in cancers. Furthermore, the relatively high expression ofPVT1has a poor effect on the overall survival of patients in 9 types of cancer, while the expression level ofMYCpresents different effects on the overall survival of patients in various cancers.

Key words:Plasmacytoma variant translocation 1 gene,MYCgene,Tumor,Survival time

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