Pan-Cancer Analysis of the Immunological Role of PDIA5: A Potential Target for Immunotherapy

作者全名："Chen, Yu; He, Jialin; Chen, Rui; Wang, Zeyu; Dai, Ziyu; Liang, Xisong; Wu, Wantao; Luo, Peng; Zhang, Jian; Peng, Yun; Zhang, Nan; Liu, Zaoqu; Zhang, Liyang; Zhang, Hao; Cheng, Quan"

作者地址："[Chen, Yu] Zhengzhou Univ, Affiliated Hosp 1, Dept Neurosurg, Zhengzhou, Peoples R China; [He, Jialin] Cent South Univ, Xiangya Hosp 2, Dept OfNeurol, Changsha, Peoples R China; [Chen, Rui] Univ South China, Affiliated Nanhua Hosp, Dept Neurosurg, Changsha, Peoples R China; [Wang, Zeyu; Dai, Ziyu; Liang, Xisong; Zhang, Liyang; Zhang, Hao; Cheng, Quan] Cent South Univ, Xiangya Hosp, Dept Neurosurg, Changsha, Peoples R China; [Wang, Zeyu; Dai, Ziyu; Liang, Xisong; Wu, Wantao; Zhang, Liyang; Zhang, Hao; Cheng, Quan] Cent South Univ, Xiangya Hosp, Natl Clin Res Ctr Geriatr Disorders, Changsha, Peoples R China; [Wu, Wantao] Cent South Univ, Xiangya Hosp, Dept Oncol, Guangzhou, Peoples R China; [Luo, Peng; Zhang, Jian] Southern Med Univ, Zhujiang Hosp, Dept Oncol, Changsha, Peoples R China; [Peng, Yun] Cent South Univ, Xiangya Hosp, Dept Geriatr, Changsha, Peoples R China; [Peng, Yun] Cent South Univ, Xiangya Hosp, Teaching & Res Sect Clin Nursing, Changsha, Peoples R China; [Zhang, Nan] Harbin Med Univ, Coll BioinformaticsSci & Technol, Lab 13, Harbin, Peoples R China; [Liu, Zaoqu] First Affiliated Hosp Zhengzhou, Dept Intervent Radiol, Changsha, Peoples R China; [Zhang, Hao] Chongqing Med Univ, Affiliated Hosp 2, Dept Neurosurg, Chongqing, Peoples R China"

通信作者："Zhang, LY; Zhang, H; Cheng, Q (通讯作者)，Cent South Univ, Xiangya Hosp, Dept Neurosurg, Changsha, Peoples R China.; Zhang, LY; Zhang, H; Cheng, Q (通讯作者)，Cent South Univ, Xiangya Hosp, Natl Clin Res Ctr Geriatr Disorders, Changsha, Peoples R China.; Zhang, H (通讯作者)，Chongqing Med Univ, Affiliated Hosp 2, Dept Neurosurg, Chongqing, Peoples R China."

来源：FRONTIERS IN IMMUNOLOGY

ESI学科分类：IMMUNOLOGY

WOS号：WOS:000879999100001

JCR分区：Q1

影响因子：7.3

年份：2022

卷号：13

期号：　

开始页：　

结束页：　

文献类型：Article

关键词：protein disulfide isomerase A5; pan-cancer analysis; cancer immunotherapy; bioinformatics; single-cell RNA sequencing

摘要："The aberrant protein disulfide isomerase A5 (PDIA5) expression was relevant to the poor prognosis of patients with human cancers. However, its relationship with the epigenetic and genetic alterations and its effect on tumor immunity is still lacking. In the present study, we comprehensively analyzed the immune infiltration role of PDIA5 in human cancers based on large-scale bioinformatics analyses and in vitro experiments. Obvious DNA methylation and moderate alteration frequency of PDIA5 were observed in human cancers. The expression level of PDIA5 was significantly correlated with infiltrated immune cells, immune pathways, and other immune signatures. We found that cancer cells and macrophages exhibited high PDIA5 expression in human cancers using the single-cell RNA sequencing analysis. We also demonstrated the interaction between PDIA5 and immune cells in glioblastoma multiforme ( GBM). Multiplex immunofluorescence staining showed the upregulated expression level of PDIA5 and the increased number of M2 macrophage markers-CD163 positive cells in pan-cancer samples. Notably, PDIA5 silencing resulted in upregulated expression of PD-L1 and SPP1 in U251 cells. Silencing of PDIA5 in hepG2 cells, U251 cells, and PC3 cells contributed to a decline in their ability of proliferation, clone formation, and invasion and inhibited the migration of cocultured M2 macrophages. Additionally, PDIA5 also displayed predictive value in the immunotherapy response of both murine and human cancer cohorts. Overall, our findings indicated that PDIA5 might be a potential target for immunotherapies in cancers."

基金机构：National Natural Science Foundation of China [82073893]; Hunan Provincial Natural Science Foundation of China [2022JJ20095]; Hunan Provincial Health Committee Foundation of China [202204044869]

基金资助正文："This work was supported by the National Natural Science Foundation of China (NO.82073893), Hunan Provincial Natural Science Foundation of China (NO.2022JJ20095), Hunan Provincial Health Committee Foundation of China (202204044869)."