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Wan R, Chen Y, Feng X, Luo Z, Peng Z, Qi B, Qin H, Lin J, Chen S, Xu L, Tang J, Zhang T. Exercise potentially prevents colorectal cancer liver metastases by suppressing tumor epithelial cell stemness via RPS4X downregulation. Heliyon 2024; 10:e26604. [PMID: 38439884 PMCID: PMC10909670 DOI: 10.1016/j.heliyon.2024.e26604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Accepted: 02/15/2024] [Indexed: 03/06/2024] Open
Abstract
Background Colorectal cancer (CRC) is the third most prevalent tumor globally. The liver is the most common site for CRC metastasis, and the involvement of the liver is a common cause of death in patients with late-stage CRC. Consequently, mitigating CRC liver metastasis (CRLM) is key to improving CRC prognosis and increasing survival. Exercise has been shown to be an effective method of improving the prognosis of many tumor types. However, the ability of exercise to inhibit CRLM is yet to be thoroughly investigated. Methods The GSE157600 and GSE97084 datasets were used for analysis. A pan-cancer dataset which was uniformly normalized was downloaded and analyzed from the UCSC database: TCGA, TARGET, GTEx (PANCAN, n = 19,131, G = 60,499). Several advanced bioinformatics analyses were conducted, including single-cell sequencing analysis, correlation algorithm, and prognostic screen. CRC tumor microarray (TMA) as well as cell/animal experiments are used to further validate the results of the analysis. Results The greatest variability was found in epithelial cells from the tumor group. RPS4X was generally upregulated in all types of CRC, while exercise downregulated RPS4X expression. A lowered expression of RPS4X may prolong tumor survival and reduce CRC metastasis. RPS4X and tumor stemness marker-CD44 were highly positively correlated and knockdown of RPS4X expression reduced tumor stemness both in vitro and in vivo. Conclusion RPS4X upregulation may enhance CRC stemness and increase the odds of metastasis. Exercise may reduce CRC metastasis through the regulation of RPS4X.
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Affiliation(s)
- Renwen Wan
- Department of Sports Medicine, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Yisheng Chen
- Department of Sports Medicine, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Xinting Feng
- Department of Sports Medicine, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Zhiwen Luo
- Department of Sports Medicine, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Zhen Peng
- Department of Sports Medicine, Shanghai General Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Beijie Qi
- Department of Orthopedics, Shanghai Pudong Hospital, Fudan University Affiliated Pudong Medical Center, Shanghai 201399, China
| | - Haocheng Qin
- Department of Rehabilitation Medicine, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Jinrong Lin
- Department of Sports Medicine, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Shiyi Chen
- Department of Sports Medicine, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Liangfeng Xu
- Department of Gastroenterology, Sheyang County People's Hospital, Yancheng 224300, Jiangsu, China
| | - Jiayin Tang
- Department of Gastrointestinal Surgery, Renji Hospital, Shanghai 200127, China
| | - Ting Zhang
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai, China
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Reddy KD, Oliver BGG. Sexual dimorphism in chronic respiratory diseases. Cell Biosci 2023; 13:47. [PMID: 36882807 PMCID: PMC9993607 DOI: 10.1186/s13578-023-00998-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Accepted: 02/23/2023] [Indexed: 03/09/2023] Open
Abstract
Sex differences in susceptibility, severity, and progression are prevalent for various diseases in multiple organ systems. This phenomenon is particularly apparent in respiratory diseases. Asthma demonstrates an age-dependent pattern of sexual dimorphism. However, marked differences between males and females exist in other pervasive conditions such as chronic obstructive pulmonary disease (COPD) and lung cancer. The sex hormones estrogen and testosterone are commonly considered the primary factors causing sexual dimorphism in disease. However, how they contribute to differences in disease onset between males and females remains undefined. The sex chromosomes are an under-investigated fundamental form of sexual dimorphism. Recent studies highlight key X and Y-chromosome-linked genes that regulate vital cell processes and can contribute to disease-relevant mechanisms. This review summarises patterns of sex differences in asthma, COPD and lung cancer, highlighting physiological mechanisms causing the observed dimorphism. We also describe the role of the sex hormones and present candidate genes on the sex chromosomes as potential factors contributing to sexual dimorphism in disease.
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Affiliation(s)
- Karosham Diren Reddy
- Respiratory and Cellular Molecular Biology Group, Woolcock Institute of Medical Research, Glebe, NSW, 2037, Australia.
- School of Life Science, University of Technology Sydney, Ultimo, NSW, 2007, Australia.
| | - Brian Gregory George Oliver
- Respiratory and Cellular Molecular Biology Group, Woolcock Institute of Medical Research, Glebe, NSW, 2037, Australia
- School of Life Science, University of Technology Sydney, Ultimo, NSW, 2007, Australia
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Piao XM, Kim YU, Byun YJ, Zheng CM, Moon SM, Kim K, Lee HY, Jeong P, Kang HW, Kim WT, Lee SC, Kim WJ, Yun SJ. Expression of RPL9 predicts the recurrence of non-muscle invasive bladder cancer with BCG therapy. Urol Oncol 2022; 40:197.e1-197.e9. [PMID: 35382986 DOI: 10.1016/j.urolonc.2021.12.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 11/09/2021] [Accepted: 12/14/2021] [Indexed: 01/01/2023]
Abstract
Numerous biomarkers and risk tables can be used to predict recurrence or progression of patients with primary or recurrent non-muscle invasive bladder cancer (NMIBC) receiving Bacillus Calmette-Guerin (BCG). However, few are suitable for BCG-unresponsive disease (i.e., recurrence or progression after BCG treatment). Therefore, identification of a novel marker that allows accurate prediction of prognosis, particularly risk of recurrence, is critically important in clinical practice. In the current study, gene ontology and gene set enrichment analyses of microarray datasets (GSE13507, n = 47) revealed that differentially expressed genes in recurred NMIBC patients after BCG treatment were associated with virus and ribosomal pathways. Among the core-enrichment genes, the expression of RPL9, a putative tumor suppressor, was lower in recurred NMIBC patients after BCG therapy than in patients without recurrence (P = 0.033) from the E-MTAT-4321 European cohort (n = 84). Data from The Cancer Genome Atlas (n = 406) showed that bladder cancer patients with higher RPL9 expression had a longer overall survival probability than patients with lower RPL9 expression (P = 0.011). Moreover, we used the latest digital PCR platform to examine 59 NMIBC patients and identified downregulation of RPL9 in patients with recurrence after BCG therapy (P = 0.031). The Kaplan-Meier survival estimator showed that NMIBC patients with higher expression of RPL9 had longer recurrence-free survival (log-rank test, P = 0.015). Therefore, we conclude that RPL9 expression is a prospective predictor of recurrence after BCG therapy in NMIBC patients.
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Affiliation(s)
- Xuan-Mei Piao
- Department of Urology, College of Medicine, Chungbuk National University, Cheongju, 28644, South Korea
| | - Yeong Uk Kim
- Department of Urology, College of medicine, Yeungnam University, Daegu, 42415, Korea
| | - Young Joon Byun
- Department of Urology, College of Medicine, Chungbuk National University, Cheongju, 28644, South Korea
| | - Chuang-Ming Zheng
- Department of Urology, College of Medicine, Chungbuk National University, Cheongju, 28644, South Korea
| | - Sung Min Moon
- Department of Urology, Chungbuk National University Hospital, Cheongju, 28644, South Korea
| | - Kyeong Kim
- Department of Urology, Chungbuk National University Hospital, Cheongju, 28644, South Korea
| | - Hee Youn Lee
- Department of Urology, Chungbuk National University Hospital, Cheongju, 28644, South Korea
| | | | - Ho Won Kang
- Department of Urology, College of Medicine, Chungbuk National University, Cheongju, 28644, South Korea; Department of Urology, Chungbuk National University Hospital, Cheongju, 28644, South Korea
| | - Won Tae Kim
- Department of Urology, College of Medicine, Chungbuk National University, Cheongju, 28644, South Korea; Department of Urology, Chungbuk National University Hospital, Cheongju, 28644, South Korea
| | - Sang-Cheol Lee
- Department of Urology, College of Medicine, Chungbuk National University, Cheongju, 28644, South Korea; Department of Urology, Chungbuk National University Hospital, Cheongju, 28644, South Korea
| | - Wun-Jae Kim
- Department of Urology, College of Medicine, Chungbuk National University, Cheongju, 28644, South Korea; Institute of Urotech, Cheongju 28120, Korea
| | - Seok Joong Yun
- Department of Urology, College of Medicine, Chungbuk National University, Cheongju, 28644, South Korea; Department of Urology, Chungbuk National University Hospital, Cheongju, 28644, South Korea.
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Li B, Fang L, Wang B, Yang Z, Zhao T. Identification of Prognostic RBPs in Osteosarcoma. Technol Cancer Res Treat 2021; 20:15330338211004918. [PMID: 33754909 PMCID: PMC8120427 DOI: 10.1177/15330338211004918] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Osteosarcoma often occurs in children and adolescents and causes poor prognosis. The role of RNA-binding proteins (RBPs) in malignant tumors has been elucidated in recent years. Our study aims to identify key RBPs in osteosarcoma that could be prognostic factors and treatment targets. GSE33382 dataset was downloaded from Gene Expression Omnibus (GEO) database. RBPs extraction and differential expression analysis was performed. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analysis were performed to explore the biological function of differential expression RBPs. Moreover, we constructed Protein-protein interaction (PPI) network and obtained key modules. Key RBPs were identified by univariate Cox regression analysis and multiple stepwise Cox regression analysis combined with the clinical information from Therapeutically Applicable Research to Generate Effective Treatments (TARGET) database. Risk score model was generated and validated by GSE16091 dataset. A total of 38 differential expression RBPs was identified. Go and KEGG results indicated these RBPs were significantly involved in ribosome biogenesis and mRNA surveillance pathway. COX regression analysis showed DDX24, DDX21, WARS and IGF2BP2 could be prognostic factors in osteosarcoma. Spearman's correlation analysis suggested that WARS might be important in osteosarcoma immune infiltration. In conclusion, DDX24, DDX21, WARS and IGF2BP2 might play key role in osteosarcoma, which could be therapuetic targets for osteosarcoma treatment.
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Affiliation(s)
- Bei Li
- Department of Orthopedic Oncology Surgery, Shandong Cancer Hospital, 66555Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Long Fang
- Department of Orthopaedics, Shandong Provincial Third Hospital, 66555Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Baolong Wang
- Department of Orthopaedics, Shandong Provincial Third Hospital, 66555Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Zengkun Yang
- Department of Orthopaedics, Shandong Provincial Third Hospital, 66555Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Tingbao Zhao
- Department of Orthopaedics, Shandong Provincial Third Hospital, 66555Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
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Bi G, Zhu D, Bian Y, Huang Y, Zhan C, Yang Y, Wang Q. Knockdown of GTF2E2 inhibits the growth and progression of lung adenocarcinoma via RPS4X in vitro and in vivo. Cancer Cell Int 2021; 21:181. [PMID: 33757492 PMCID: PMC7989205 DOI: 10.1186/s12935-021-01878-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Accepted: 03/16/2021] [Indexed: 12/24/2022] Open
Abstract
Background Lung adenocarcinoma (LUAD) is one of the most common malignancies worldwide. However, the molecular mechanism of LUAD tumorigenesis and development remains unclear. The purpose of this study was to comprehensively illustrate the role of GTF2E2 in the growth and progression of LUAD. Methods and materials We obtained the mRNA expression data from The Cancer Genome Atlas, Gene Expression Omnibus database, and our institution. Systematic bioinformatical analyses were performed to investigate the expression and prognostic value of GTF2E2 in LUAD. The results were validated by immunohistochemistry and qPCR. The effect of knocking down GTF2E2 using two short hairpin RNAs was investigated by in vitro and in vivo assays. Subsequently, shotgun liquid chromatography coupled with tandem mass spectrometry (LC–MS/MS) analyses were applied to identified potential GTF2E2 interacting proteins, and the downstream molecular mechanisms of GTF2E2-signaling were further explored by a series of cellular functional assays. Results We found that GTF2E2 expression was significantly increased in LUAD tissue compared with adjacent normal tissue and was negatively associated with patients’ overall survival. Besides, we demonstrated that GTF2E2 knockdown inhibited LUAD cell proliferation, migration, invasion, and promote apoptosis in vitro, as well as attenuated tumor growth in vivo. Results from LC–MS/MS suggested that RPS4X might physically interact with GTF2E2 and mediated GTF2E2’s regulatory effect on LUAD development through the mTOR pathway. Conclusion Our findings indicate that GTF2E2 promotes LUAD development by activating RPS4X. Therefore, GTF2E2 might serve as a promising biomarker for the diagnosis and prognosis of LUAD patients, thus shedding light on the precise and personalized therapy for LUAD in the future. Supplementary Information The online version contains supplementary material available at 10.1186/s12935-021-01878-z.
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Affiliation(s)
- Guoshu Bi
- Department of Thoracic Surgery, Zhongshan Hospital, Fudan University, No. 180 Fenglin Road, Xuhui District, Shanghai, 200032, China
| | - Donglin Zhu
- Department of Thoracic Surgery, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, 215000, Jiangsu Province, China
| | - Yunyi Bian
- Department of Thoracic Surgery, Zhongshan Hospital, Fudan University, No. 180 Fenglin Road, Xuhui District, Shanghai, 200032, China
| | - Yiwei Huang
- Department of Thoracic Surgery, Zhongshan Hospital, Fudan University, No. 180 Fenglin Road, Xuhui District, Shanghai, 200032, China
| | - Cheng Zhan
- Department of Thoracic Surgery, Zhongshan Hospital, Fudan University, No. 180 Fenglin Road, Xuhui District, Shanghai, 200032, China.
| | - Yong Yang
- Department of Thoracic Surgery, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, 215000, Jiangsu Province, China.
| | - Qun Wang
- Department of Thoracic Surgery, Zhongshan Hospital, Fudan University, No. 180 Fenglin Road, Xuhui District, Shanghai, 200032, China
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Reza AMMT, Yuan YG. microRNAs Mediated Regulation of the Ribosomal Proteins and its Consequences on the Global Translation of Proteins. Cells 2021; 10:110. [PMID: 33435549 PMCID: PMC7827472 DOI: 10.3390/cells10010110] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2020] [Accepted: 12/14/2020] [Indexed: 12/23/2022] Open
Abstract
Ribosomal proteins (RPs) are mostly derived from the energy-consuming enzyme families such as ATP-dependent RNA helicases, AAA-ATPases, GTPases and kinases, and are important structural components of the ribosome, which is a supramolecular ribonucleoprotein complex, composed of Ribosomal RNA (rRNA) and RPs, coordinates the translation and synthesis of proteins with the help of transfer RNA (tRNA) and other factors. Not all RPs are indispensable; in other words, the ribosome could be functional and could continue the translation of proteins instead of lacking in some of the RPs. However, the lack of many RPs could result in severe defects in the biogenesis of ribosomes, which could directly influence the overall translation processes and global expression of the proteins leading to the emergence of different diseases including cancer. While microRNAs (miRNAs) are small non-coding RNAs and one of the potent regulators of the post-transcriptional gene expression, miRNAs regulate gene expression by targeting the 3' untranslated region and/or coding region of the messenger RNAs (mRNAs), and by interacting with the 5' untranslated region, and eventually finetune the expression of approximately one-third of all mammalian genes. Herein, we highlighted the significance of miRNAs mediated regulation of RPs coding mRNAs in the global protein translation.
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Affiliation(s)
- Abu Musa Md Talimur Reza
- Jiangsu Co-Innovation Center of Prevention and Control of Important Animal Infectious Diseases and Zoonoses, College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China;
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Pawińskiego 5a, 02-106 Warsaw, Poland
| | - Yu-Guo Yuan
- Jiangsu Co-Innovation Center of Prevention and Control of Important Animal Infectious Diseases and Zoonoses, College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China;
- Jiangsu Key Laboratory of Zoonosis/Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou 225009, China
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Xu L, Wang L, Jiang C, Zhu Q, Chen R, Wang J, Wang S. Biological effect of ribosomal protein L32 on human breast cancer cell behavior. Mol Med Rep 2020; 22:2478-2486. [PMID: 32705264 PMCID: PMC7411337 DOI: 10.3892/mmr.2020.11302] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2019] [Accepted: 06/04/2020] [Indexed: 01/18/2023] Open
Abstract
Breast cancer (BC) is the most common malignancy among women worldwide. However, identifying effective biomarkers for the diagnosis and treatment of BC is challenging. Based on our previously developed 'humanized' mouse model of BC, microarray expression analysis was performed and multiple differentially expressed genes, including ribosomal protein (RP) L32, were screened. Recent reports have revealed that RPs are relevant to the development and progression of cancer. However, the expression and function of RPL32 in BC remains unknown. Therefore, in the present study, the role of RPL32 in the development of BC was explored. Immunohistochemical staining and reverse transcription‑quantitative PCR were used, and it was found that RPL32 was upregulated in human BC tissues and cells. Cell Counting Kit‑8, cell invasion and migration assays were performed, which demonstrated that RPL32 knockdown using lentivirus‑delivered small interfering RNA inhibited the migration and invasion of BC cells in vitro and in vivo (nude mouse model). Moreover, western blotting showed that RPL32 knockdown decreased the expression levels of matrix metalloproteinase (MMP)‑2 and MMP‑9. Thus, the present findings indicated a potential oncogenic role of RPL32, suggesting that it may be a novel target for molecular targeted therapy in patients with BC.
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Affiliation(s)
- Lu Xu
- Clinical Nutrition Department, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210000, P.R. China
| | - Lintao Wang
- Department of Biochemistry and Molecular Biology, Nanjing Medical University, Nanjing, Jiangsu 210000, P.R. China
| | - Chaojun Jiang
- Breast Disease Department, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210000, P.R. China
| | - Qiannan Zhu
- Breast Disease Department, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210000, P.R. China
| | - Rui Chen
- Breast Disease Department, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210000, P.R. China
| | - Jue Wang
- Breast Disease Department, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210000, P.R. China
| | - Shui Wang
- Breast Disease Department, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210000, P.R. China
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Dolezal JM, Dash AP, Prochownik EV. Diagnostic and prognostic implications of ribosomal protein transcript expression patterns in human cancers. BMC Cancer 2018. [PMID: 29530001 PMCID: PMC5848553 DOI: 10.1186/s12885-018-4178-z] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Background Ribosomes, the organelles responsible for the translation of mRNA, are comprised of four rRNAs and ~ 80 ribosomal proteins (RPs). Although canonically assumed to be maintained in equivalent proportions, some RPs have been shown to possess differential expression across tissue types. Dysregulation of RP expression occurs in a variety of human diseases, notably in many cancers, and altered expression of some RPs correlates with different tumor phenotypes and patient survival. Little work has been done, however, to characterize overall patterns of RP transcript (RPT) expression in human cancers. Methods To investigate the impact of global RPT expression patterns on tumor phenotypes, we analyzed RPT expression of ~ 10,000 human tumors and over 700 normal tissues from The Cancer Genome Atlas (TCGA) using t-distributed stochastic neighbor embedding (t-SNE). Clusters of tumors identified by t-SNE were then analyzed with chi-squared and t-tests to compare phenotypic data, ANOVA to compare individual RPT expression, and Kaplan-Meier curves to assess survival differences. Results Normal tissues and cancers possess distinct and readily discernible RPT expression patterns that are independent of their absolute levels of expression. In tumors, RPT patterning is distinct from that of normal tissues, identifies heretofore unrecognized tumor subtypes, and in many cases correlates with molecular, pathological, and clinical features, including survival. Conclusions RPT expression patterns are both tissue-specific and tumor-specific. These could be used as a powerful and novel method of tumor classification, offering a potential clinical tool for prognosis and therapeutic stratification. Electronic supplementary material The online version of this article (10.1186/s12885-018-4178-z) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- James M Dolezal
- Division of Hematology/Oncology, Children's Hospital of Pittsburgh of UPMC, Pittsburgh, PA, USA.
| | - Arie P Dash
- Division of Hematology/Oncology, Children's Hospital of Pittsburgh of UPMC, Pittsburgh, PA, USA
| | - Edward V Prochownik
- Division of Hematology/Oncology, Children's Hospital of Pittsburgh of UPMC, Pittsburgh, PA, USA.,Department of Microbiology and Molecular Genetics, The University of Pittsburgh Medical Center; The University of Pittsburgh Hillman Cancer Center, Pittsburgh, PA, USA
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Kuang J, Li QY, Fan F, Shen NJ, Zhan YJ, Tang ZH, Yu WL. Overexpression of the X-linked ribosomal protein S4 predicts poor prognosis in patients with intrahepatic cholangiocarcinoma. Oncol Lett 2017; 14:41-46. [PMID: 28693133 PMCID: PMC5494819 DOI: 10.3892/ol.2017.6137] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2015] [Accepted: 01/11/2017] [Indexed: 12/27/2022] Open
Abstract
X-linked ribosomal protein S4 (RPS4X) has previously been reported to be associated with cisplatin resistance and clinical outcome in bladder and ovarian cancer. However, the value of RPS4X as a diagnostic and prognostic marker in intrahepatic cholangiocarcinoma (ICC) has not yet been investigated. The present study evaluated the expression pattern, and diagnostic and prognostic value of RPS4X in patients with ICC. Retrospective analysis was performed for a total of 201 patients with intrahepatic cholangiocarcinoma, and 8 patients with inflammation of the bile duct. Immunohistochemistry was performed using tissue microarrays to characterize the expression profile of RPS4X. Receiver operating characteristic (ROC) curves, the Kaplan-Meier estimator and Cox regression analysis were applied to evaluate the potential diagnostic and prognostic value of RPS4X in ICC. RPS4X was significantly upregulated in ICC tissues compared with the inflamed bile duct tissues. When differentiating ICC from normal controls, ROC analysis of RPS4X gave an area under the curve value of 0.9030 (sensitivity, 82.59%; specificity, 100%). RPS4X expression was significantly positively correlated with serum alkaline phosphatase levels. Survival analysis demonstrated that RPS4X expression levels were an independent prognostic factor for overall survival. Therefore, RPS4X expression levels may serve as a novel diagnostic and prognostic marker in ICC.
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Affiliation(s)
- Jie Kuang
- Department of Surgery, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200092, P.R. China
| | - Qin-Yu Li
- Department of Surgery, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200092, P.R. China
| | - Fei Fan
- Department II of Biliary Tract Surgery, Eastern Hepatobiliary Hospital, Shanghai 200438, P.R. China
| | - Ning-Jia Shen
- Department II of Biliary Tract Surgery, Eastern Hepatobiliary Hospital, Shanghai 200438, P.R. China
| | - Yong-Jie Zhan
- Department II of Biliary Tract Surgery, Eastern Hepatobiliary Hospital, Shanghai 200438, P.R. China
| | - Zhao-Hui Tang
- Department of General Surgery, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200092, P.R. China
| | - Wen-Long Yu
- Department II of Biliary Tract Surgery, Eastern Hepatobiliary Hospital, Shanghai 200438, P.R. China
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