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Wen J, Wan L, Dong X. Prognostic value of PRR11 and immune cell infiltration in Ewing sarcoma. PLoS One 2024; 19:e0299720. [PMID: 38427643 PMCID: PMC10906862 DOI: 10.1371/journal.pone.0299720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Accepted: 02/13/2024] [Indexed: 03/03/2024] Open
Abstract
Ewing's sarcoma (ES) is the second most common bone and soft tissue malignancy in children and adolescents with a poor prognosis. The identification of genes with prognostic value may contribute to the prediction and treatment of this disease. The GSE17679, GSE68776, GSE63155, and GSE63156 datasets were downloaded from the Gene Expression Omnibus database and qualified. Prognostic value of differentially expressed genes (DEGs) between the normal and tumor groups and immune cell infiltration were explored by several algorithms. A prognostic model was established and validated. Finally, functional analyses of the DEGs were performed. Proline rich 11 (PRR11) and mast cell infiltration were noted as the key indicators for the prognosis of ES. Kaplan-Meier and scatter plots for the training and two validation sets showed that patients in the low-PRR11 expression group were associated with better outcomes than those in the high-PRR11 expression group. The concordance indices and calibration analyses of the prognostic model indicated good predictive accuracy in the training and validation sets. The area under the curve values obtained through the receiver operating characteristic analysis for 1-, 3-, 5-year prediction were ≥ 0.75 in the three cohorts, suggesting satisfactory sensitivity and specificity of the model. Decision curve analyses suggested that patients could benefit more from the model than the other strategies. Functional analyses suggested that DEGs were mainly clustered in the cell cycle pathway. PRR11 and mast cell infiltration are potential prognostic indicators in ES. PRR11 possibly affects the prognosis of patients with ES through the cell cycle pathway.
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Affiliation(s)
- Jian Wen
- Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, China
- Department of Orthopedics, JXHC Key Laboratory of Digital Orthopedics, Jiangxi Provincial People’s Hospital, The First Affiliated Hospital of Nanchang Medical College, Nanchang, Jiangxi, China
| | - Lijia Wan
- Department of Child Healthcare, Hunan Provincial Maternal and Child Health Hospital, Changsha, Hunan, China
| | - Xieping Dong
- Department of Orthopedics, JXHC Key Laboratory of Digital Orthopedics, Jiangxi Provincial People’s Hospital, The First Affiliated Hospital of Nanchang Medical College, Nanchang, Jiangxi, China
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2
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Wang S, Zhang X, Lei H, Song L, Huang Y, Kang T, Zhang M, Wang N, Yang P, Feng S, Wang J, Bai R, Wang N, Wang W, Zheng Y. Proline-rich 11 (PRR11) promotes the progression of cutaneous squamous cell carcinoma by activating the EGFR signaling pathway. Mol Carcinog 2023; 62:613-627. [PMID: 36727626 DOI: 10.1002/mc.23510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Revised: 12/31/2022] [Accepted: 01/17/2023] [Indexed: 02/03/2023]
Abstract
Cutaneous squamous cell carcinoma (cSCC) is one of the most common skin malignancies, and its incidence rate is increasing worldwide. Proline-rich 11 (PRR11) has been reported to be involved in the occurrence and development of various tumors. However, the role of PRR11 in cSCC remains unknown. In the present study, we observed upregulated expression of PRR11 in cSCC tissues and cell lines. Knockdown of PRR11 in the cSCC cell lines A431 and SCL-1 inhibited cell proliferation by inducing cell cycle arrest during the G1/S phase transition, promoted cell apoptosis, and reduced cell migration and invasion in vitro. Conversely, overexpression of PRR11 promoted cell proliferation, decreased cell apoptosis, and enhanced cell migration and invasion. PRR11 knockdown also inhibited cSCC tumor growth in a mouse xenograft model. Mechanistic investigations by RNA sequencing revealed that 891 genes were differentially expressed genes between cells with PRR11 knockdown and control cells. Enrichment analysis of different genes showed that the epidermal growth factor receptor (EGFR) signaling pathway was the top enriched pathway. We further validated that PRR11 induced EGFR pathway activity, which contributed to cSCC progression. These data suggest that PRR11 may serve as a novel therapeutic target in cSCC.
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Affiliation(s)
- Shengbang Wang
- Department of Dermatology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Xiu Zhang
- Department of Dermatology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Hao Lei
- Department of Dermatology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Liumei Song
- Department of Dermatology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Yingjian Huang
- Department of Dermatology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Tong Kang
- Department of Dermatology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Mengdi Zhang
- Department of Dermatology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Ning Wang
- Department of Dermatology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Pengju Yang
- Department of Dermatology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Shuo Feng
- Department of Dermatology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Jingping Wang
- Department of Dermatology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Ruimin Bai
- Department of Dermatology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Nan Wang
- Department of Emergency, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Wei Wang
- Department of Dermatology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Yan Zheng
- Department of Dermatology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
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Han W, Chen L. PRR11 in Malignancies: Biological Activities and Targeted Therapies. Biomolecules 2022; 12:biom12121800. [PMID: 36551227 PMCID: PMC9775115 DOI: 10.3390/biom12121800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Revised: 11/25/2022] [Accepted: 11/26/2022] [Indexed: 12/04/2022] Open
Abstract
Proline rich 11 (PRR11), initially renowned for its relevance with cell-cycle progression, is a proline-rich protein coding gene in chromosome 17q22-23. Currently, accumulating studies have demonstrated that PRR11 plays a critical role in cellular proliferation, colony formation, migration, invasion, cell-cycle progression, apoptosis, autophagy and chemotherapy resistance via multiple signaling pathways and biological molecules in several solid tumors. In particular, PRR11 also serves as a promising prognostic indicator in a limited number of human cancers, gradually manifesting its potential application for targeted therapies. In this review, we summarize functional activities, related signaling pathways and biological molecules of PRR11 in various malignancies and generalize potential application of PRR11 for targeted therapies, thereby contributing to further exploration of PRR11 in cancer treatment.
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Affiliation(s)
- Wei Han
- Department of Neurosurgery, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai 200040, China
- National Center for Neurological Disorders, Shanghai 200040, China
- Shanghai Key Laboratory of Brain Function and Restoration and Neural Regeneration, Shanghai 200040, China
- Neurosurgical Institute, Fudan University, Shanghai 200040, China
- Shanghai Clinical Medical Center of Neurosurgery, Shanghai 200040, China
- State Key Laboratory of Medical Neurobiology, Institute for Translational Brain Research, MOE Frontiers Center for Brain Science, Fudan University, Shanghai 200032, China
- Correspondence: (W.H.); (L.C.)
| | - Liang Chen
- Department of Neurosurgery, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai 200040, China
- National Center for Neurological Disorders, Shanghai 200040, China
- Shanghai Key Laboratory of Brain Function and Restoration and Neural Regeneration, Shanghai 200040, China
- Neurosurgical Institute, Fudan University, Shanghai 200040, China
- Shanghai Clinical Medical Center of Neurosurgery, Shanghai 200040, China
- Correspondence: (W.H.); (L.C.)
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Zhang H, He Z, Qiu L, Wei J, Gong X, Xian M, Chen Z, Cui Y, Fu S, Zhang Z, Hu B, Zhang X, Lin S, Du H. PRR11 promotes cell proliferation by regulating PTTG1 through interacting with E2F1 transcription factor in pan-cancer. Front Mol Biosci 2022; 9:877320. [PMID: 36060253 PMCID: PMC9437250 DOI: 10.3389/fmolb.2022.877320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Accepted: 07/18/2022] [Indexed: 11/13/2022] Open
Abstract
The upregulated proline rich 11 (PRR11) plays a critical role in cancer progression. The relevant biological functions of PRR11 in pan-cancer development are not well understood. In the current study, we found that PRR11 was upregulated in 19 cancer types compared with that of normal tissues and high-expressed PRR11 was a predictor of poor prognosis in 10 cancer types by bioinformatics. Then we showed that interfering PRR11 on three cancer cell lines could greatly inhibit cell proliferation and migration and arrest cells to S phase in vivo. Based on RNA-seq, downregulation of PRR11 expression could extremely suppress the expression of PTTG1 and the cell cycle pathway identified by a differentially expressed gene analysis and an enrichment analysis. The expression of PRR11 and PTTG1 was positively correlated in TCGA and independent GEO data sets. Importantly, we revealed that the PRR11 could express itself in the nucleus and interact with E2F1 on the PTTG1 promoter region to increase the expression of PTTG1. Further results indicated that the expression of PTTG1 was also associated with poor prognosis in 10 cancer types, while downregulation of PTTG1 expression could inhibit cancer cell proliferation and migration. Therefore, we found that PRR11 served as an oncogene in pan-cancer and could influence the cell cycle progression through regulating the expression of PTTG1 by interacting with the transcription factor E2F1.
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Affiliation(s)
- Haibo Zhang
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou, China
| | - Ziqing He
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou, China
| | - Li Qiu
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou, China
| | - Jinfen Wei
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou, China
| | - Xiaocheng Gong
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou, China
| | - Mingjian Xian
- College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Zixi Chen
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou, China
| | - Ying Cui
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou, China
| | - Shuying Fu
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou, China
| | - Zihao Zhang
- College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Bowen Hu
- College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Xiquan Zhang
- College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Shudai Lin
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou, China
- College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, GD, China
- *Correspondence: Hongli Du, ; Shudai Lin,
| | - Hongli Du
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou, China
- *Correspondence: Hongli Du, ; Shudai Lin,
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Yi L, Liu Y, Xu A, Li S, Zhang H, Peng M, Li Z, Ren H, Dai J, Luo C, Xiao Y, Zhou X, Long Y. MicroRNA-26b-5p suppresses the proliferation of tongue squamous cell carcinoma via targeting proline rich 11 (PRR11). Bioengineered 2021; 12:5830-5838. [PMID: 34488538 PMCID: PMC8806564 DOI: 10.1080/21655979.2021.1969832] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
MicroRNAs (miRNAs) have been proved to be involved in many biological processes during tumorigenesis and progression, including cell proliferation and cell cycle progression. However, the potential role of miR-26b-5p in tongue squamous cell carcinoma (TSCC) remains unclear. In the present study, we demonstrated that miR-26b-5p was decreased in TSCC tissues in both TCGA-TSCC subset and eight paired samples from TSCC patients, while Proline Rich 11 (PRR11) was obviously increased. Transfection of miR-26b-5p mimics inhibited CALL7 cell proliferation by arresting the cells at the S/G2 transition. Meanwhile, miR-26b-5p inhibitor had the opposite biological functions. The results of luciferase activity and RNA-pulldown assays indicated that miR-26b-5p directly targeted the PRR11 3' -untranslated region in CAL27 cells. Furthermore, the effects of miR-26b-5p on cell cycle regulation were reversed after treatment with siRNA against PRR11. In summary, our findings indicate that miR-26b-5p induce cell cycle arrest in TSCC by targeting PRR11. Hence, targeting miR-26b-5p could be a promising therapeutic strategy for the treatment of TSCC.
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Affiliation(s)
- Liang Yi
- Translational Medicine Centre.,Department of Head & Neck Surgery.,Hunan Provincial Clinical Research Centre for Oncoplastic Surgery, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, P. R. China
| | - Ying Liu
- Hunan Traditional Chinese Medical College, Zhuzhou, Hunan, P. R. China
| | - Anji Xu
- Department of Head & Neck Surgery.,Hunan Provincial Clinical Research Centre for Oncoplastic Surgery, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, P. R. China
| | - Sha Li
- Department of Head & Neck Surgery.,Hunan Provincial Clinical Research Centre for Oncoplastic Surgery, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, P. R. China
| | - Hailin Zhang
- Department of Head & Neck Surgery.,Hunan Provincial Clinical Research Centre for Oncoplastic Surgery, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, P. R. China
| | - Mingjing Peng
- Translational Medicine Centre.,Hunan Provincial Clinical Research Centre for Oncoplastic Surgery, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, P. R. China
| | - Zan Li
- Department of Head & Neck Surgery.,Hunan Provincial Clinical Research Centre for Oncoplastic Surgery, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, P. R. China
| | | | - Jie Dai
- Department of Head & Neck Surgery.,Hunan Provincial Clinical Research Centre for Oncoplastic Surgery, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, P. R. China
| | - Chenhui Luo
- Hunan Provincial Clinical Research Centre for Oncoplastic Surgery, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, P. R. China
| | - Yazhou Xiao
- Hunan Provincial Clinical Research Centre for Oncoplastic Surgery, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, P. R. China
| | - Xiao Zhou
- Translational Medicine Centre.,Department of Head & Neck Surgery.,Hunan Provincial Clinical Research Centre for Oncoplastic Surgery, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, P. R. China
| | - Ying Long
- Translational Medicine Centre.,Hunan Provincial Clinical Research Centre for Oncoplastic Surgery, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, P. R. China
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Li Y, Lin H, Chen L, Chen Z, Li W. Novel Therapies for Tongue Squamous Cell Carcinoma Patients with High-Grade Tumors. Life (Basel) 2021; 11:813. [PMID: 34440557 PMCID: PMC8398384 DOI: 10.3390/life11080813] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 08/05/2021] [Accepted: 08/07/2021] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Tongue squamous cell carcinoma (TSCC) patients with high-grade tumors usually suffer from high occurrence and poor prognosis. The current study aimed at finding the biomarkers related to tumor grades and proposing potential therapies by these biomarkers. METHODS The mRNA expression matrix of TSCC samples from The Cancer Genome Atlas (TCGA) database was analyzed to identify hub proteins related to tumor grades. The mRNA expression patterns of these hub proteins between TSCC and adjacent control samples were validated in three independent TSCC data sets (i.e., GSE9844, GSE30784, and GSE13601). The correlation between cell cycle index and immunotherapy efficacy was tested on the IMvigor210 data set. Based on the structure of hub proteins, virtual screening was applied to compounds to find the potential inhibitors. RESULTS A total of six cell cycle biomarkers (i.e., BUB1, CCNB2, CDC6, CDC20, CDK1, and MCM2) were selected as hub proteins by protein-protein interaction (PPI) analysis. In the validation data sets, the mRNA expression levels of these hub proteins were higher in tumor samples versus normal controls. The cell cycle index was constructed by the mRNA expression levels of these hub proteins, and patients with a high cell cycle index demonstrated favorable drug response to the immunotherapy. Three small molecules (i.e., ZINC100052685, ZINC8214703, and ZINC85537014) were found to bind with hub proteins and selected as drug candidates. CONCLUSION The cell cycle index might provide a novel reference for selecting appropriate cancer patient candidates for immunotherapy. The current research might contribute to the development of precision medicine and improve the prognosis of TSCC.
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Affiliation(s)
- Yinghua Li
- Department of Oral and Maxillofacial Surgery, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China;
| | - Hao Lin
- Department of Urology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China;
| | - Lu Chen
- School of Clinical Medicine, Baotou Medical College, Baotou 014040, China;
| | - Zihao Chen
- Department of Urology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China;
| | - Weizhong Li
- Department of Oral and Maxillofacial Surgery, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China;
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Gu Y, Li J, Guo D, Chen B, Liu P, Xiao Y, Yang K, Liu Z, Liu Q. Identification of 13 Key Genes Correlated With Progression and Prognosis in Hepatocellular Carcinoma by Weighted Gene Co-expression Network Analysis. Front Genet 2020; 11:153. [PMID: 32180800 PMCID: PMC7059753 DOI: 10.3389/fgene.2020.00153] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Accepted: 02/10/2020] [Indexed: 12/19/2022] Open
Abstract
Hepatocellular carcinoma (HCC) remains hard to diagnose early and cure due to a lack of accurate biomarkers and effective treatments. Hence, it is necessary to explore the tumorigenesis and tumor progression of HCC to discover new biomarkers for clinical treatment. We performed weighted gene co-expression network analysis (WGCNA) to explore hub genes that have high correlation with clinical information. In this study, we found 13 hub genes (GTSE1, PLK1, NCAPH, SKA3, LMNB2, SPC25, HJURP, DEPDC1B, CDCA4, UBE2C, LMNB1, PRR11, and SNRPD2) that have high correlation with histologic grade in HCC by analyzing TCGA LIHC dataset. All of these 13 hub genes could be used to effectively distinguish high histologic grade from low histologic grade of HCC through analysis of the ROC curve. The overall survival and disease-free survival information showed that high expression of these 13 hub genes led to poor prognosis. Meanwhile, these 13 hub genes had significantly different expression in HCC tumor and non-tumor tissues. We downloaded GSE6764, which contains corresponding clinical information, to validate the expression of these 13 hub genes. At the same time, we performed quantitative real-time PCR to validate the differences in the expression tendencies of these 13 hub genes between HCC tumor tissues and non-tumor tissues and high histologic grade and low histologic grade. We also explored mutation and methylation information of these 13 hub genes for further study. In summary, 13 hub genes correlated with the progression and prognosis of HCC were discovered by WGCNA in our study, and these hub genes may contribute to the tumorigenesis and tumor progression of HCC.
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Affiliation(s)
- Yang Gu
- Department of Hepatobiliary and Pancreas Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Jun Li
- Department of Hepatobiliary and Pancreas Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Deliang Guo
- Department of Hepatobiliary and Pancreas Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Baiyang Chen
- Department of Hepatobiliary and Pancreas Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Pengpeng Liu
- Department of Hepatobiliary and Pancreas Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Yusha Xiao
- Department of Hepatobiliary and Pancreas Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Kang Yang
- Department of Hepatobiliary and Pancreas Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Zhisu Liu
- Department of Hepatobiliary and Pancreas Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Quanyan Liu
- Department of Hepatobiliary and Pancreas Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China
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Lin C, Xia J, Gu Z, Meng Y, Gao D, Wei S. Downregulation of USP34 Inhibits the Growth and Migration of Pancreatic Cancer Cells via Inhibiting the PRR11. Onco Targets Ther 2020; 13:1471-1480. [PMID: 32110045 PMCID: PMC7036619 DOI: 10.2147/ott.s228857] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Accepted: 01/10/2020] [Indexed: 12/30/2022] Open
Abstract
Background Pancreatic cancer (PC) is a highly lethal malignancy worldwide. Our previous study indicated that overexpression of USP34 could promote tumor growth in PC cells. Therefore, this study aimed to further investigate the role of USP34 during the tumorigenesis of PC. Methods The level of USP34 in PANC-1 and MiaPaCa-2 cells transfected with USP34-shRNAs was detected by RT-qPCR. Moreover, transwell migration and Annexin V/PI analysis were conducted to detect cell migration and apoptosis, respectively. Results In this study, downregulation of USP34 markedly inhibited proliferation and migration, and induced apoptosis in PANC-1 cells. Moreover, silencing of USP34 obviously downregulated the levels of PRR11 and p-p38 in PANC-1 cells. An in vivo study in nude mice bearing PANC-1 cell xenografts confirmed these results. Conclusion Downregulation of USP34 could inhibit proliferation and migration in PANC-1 cells via inhibiting PRR11, and inactivating p38 MAPK signaling. Therefore, USP34 might be a potential therapeutic target for the treatment of PC.
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Affiliation(s)
- Changjie Lin
- Department of General Surgery, The Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215000, People's Republic of China
| | - Jing Xia
- Department of General Surgery, The Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215000, People's Republic of China
| | - Zhiwei Gu
- Department of General Surgery, The Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215000, People's Republic of China
| | - Yunpeng Meng
- Department of General Surgery, The Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215000, People's Republic of China
| | - Dekang Gao
- Department of General Surgery, The Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215000, People's Republic of China
| | - Shaohua Wei
- Department of General Surgery, The Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215000, People's Republic of China
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