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Tan GG, Xu C, Zhong WK, Wang CY. miR-184 delays cell proliferation, migration and invasion in prostate cancer by directly suppressing DLX1. Exp Ther Med 2021; 22:1163. [PMID: 34504608 PMCID: PMC8393589 DOI: 10.3892/etm.2021.10597] [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: 12/10/2018] [Accepted: 09/04/2019] [Indexed: 11/25/2022] Open
Abstract
A number of previous studies have reported that dysregulated miR-184 expression is associated with the development of cancer. The aim of the present study was to investigate the role of miR-184 in prostate cancer (PC) and the mechanism underlying its effects. Data from human tumor tissue samples were collected from The CEancer Genome Atlas to determine the expression levels of miR-184 and DLX1. The miR-184 mimic and pcDNA3.1-DLX1 plasmid were utilized to induce overexpression of miR-184 and DLX1 in Du145 cells, respectively. Cell Counting Kit-8, wound healing and Transwell assays were performed to examine the effects of miR-184 on the aggressiveness of PC cells. Dual-luciferase reporter gene assay was used to investigate the association between miR-184 and DLX1, and reverse transcription-quantitative PCR and western blot analyses were utilized to determine the mRNA and protein levels. miR-184 expression was found to be downregulated whereas DLX1 was upregulated in PC tissues compared with normal prostate tissues. Cell propagation, migration and invasion were all inhibited by miR-184 upregulation in Du145 cells. Dual luciferase reporter assay confirmed the association between miR-184 and DLX1. The inhibitory effect of miR-184 mimic on cell behaviors was reversed by upregulation of DLX1. These findings suggest that miR-184 plays a beneficial role in suppressing the tumorigenesis of PC by directly targeting DLX1, and it may represent a potential therapeutic strategy for PC.
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Affiliation(s)
- Gui-Geng Tan
- Department of Urology, Affiliated Hospital of Jining Medical University, Jining, Shandong 272100, P.R. China
| | - Chang Xu
- Department of Urology, Yanzhou People's Hospital, Jining, Shandong 272100, P.R. China
| | - Wei-Kang Zhong
- Operating Room Department, Affiliated Hospital of Jining Medical University, Jining, Shandong 272100, P.R. China
| | - Chuan-Yun Wang
- Department of Urinary Surgery, Jining No. 1 People's Hospital, Jining, Shandong 272011, P.R. China
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2
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Maryam Khorasani, Shahbazi S, Abolhasani M, Shahrokh H, Mahdian R. Expression Profile of MiR-200 Family Members and Their Targets in Prostate Cancer. CYTOL GENET+ 2021. [DOI: 10.3103/s009545272104006x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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3
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Arrighetti N, Beretta GL. miRNAs as Therapeutic Tools and Biomarkers for Prostate Cancer. Pharmaceutics 2021; 13:pharmaceutics13030380. [PMID: 33805590 PMCID: PMC7999286 DOI: 10.3390/pharmaceutics13030380] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 03/10/2021] [Accepted: 03/11/2021] [Indexed: 12/14/2022] Open
Abstract
Prostate cancer (PCa) is the fifth cause of tumor-related deaths in man worldwide. Despite the considerable improvement in the clinical management of PCa, several limitations emerged both in the screening for early diagnosis and in the medical treatment. The use of prostate-specific antigen (PSA)-based screening resulted in patients’ overtreatment and the standard therapy of patients suffering from locally advanced/metastatic tumors (e.g., radical prostatectomy, radiotherapy, and androgen deprivation therapy) showed time-limited efficacy with patients undergoing progression toward the lethal metastatic castration-resistant PCa (mCRPC). Although valuable alternative therapeutic options have been recently proposed (e.g., docetaxel, cabazitaxel, abiraterone, enzalutamide, and sipuleucel-T), mCRPC remains incurable. Based on this background, there is an urgent need to identify new and more accurate prostate-specific biomarkers for PCa diagnosis and prognosis and to develop innovative medical approaches to counteract mCRPC. In this context, microRNA (miRNAs) emerged as potential biomarkers in prostate tissues and biological fluids and appeared to be promising therapeutic targets/tools for cancer therapy. Here we overview the recent literature and summarize the achievements of using miRNAs as biomarkers and therapeutic targets/tools for fighting PCa.
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4
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Lam KK, Sethi R, Tan G, Tomar S, Lo M, Loi C, Tang CL, Tan E, Lai PS, Cheah PY. The orphan nuclear receptor
NR0B2
could be a novel susceptibility locus associated with microsatellite‐stable,
APC
mutation‐negative early‐onset colorectal carcinomas with metabolic manifestation. Genes Chromosomes Cancer 2020; 60:61-72. [DOI: 10.1002/gcc.22904] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 10/16/2020] [Accepted: 10/19/2020] [Indexed: 12/15/2022] Open
Affiliation(s)
- Kuen Kuen Lam
- Department of Colorectal Surgery Singapore General Hospital Singapore Singapore
| | - Raman Sethi
- Department of Paediatrics, Yong Loo Lin School of Medicine National University of Singapore Singapore Singapore
| | - Grace Tan
- Department of Paediatrics, Yong Loo Lin School of Medicine National University of Singapore Singapore Singapore
| | - Swati Tomar
- Department of Paediatrics, Yong Loo Lin School of Medicine National University of Singapore Singapore Singapore
| | - Michelle Lo
- Department of Colorectal Surgery Singapore General Hospital Singapore Singapore
| | - Carol Loi
- Department of Colorectal Surgery Singapore General Hospital Singapore Singapore
| | - Choong Leong Tang
- Department of Colorectal Surgery Singapore General Hospital Singapore Singapore
| | - Emile Tan
- Department of Colorectal Surgery Singapore General Hospital Singapore Singapore
| | - Poh San Lai
- Department of Paediatrics, Yong Loo Lin School of Medicine National University of Singapore Singapore Singapore
- Genome Institute of Singapore, A*STAR Singapore Singapore
| | - Peh Yean Cheah
- Department of Colorectal Surgery Singapore General Hospital Singapore Singapore
- Saw Swee Hock School of Public Health National University of Singapore Singapore Singapore
- Duke‐NUS Medical School National University of Singapore Singapore Singapore
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5
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Wang Y, Gao W, Li Y, Chow ST, Xie W, Zhang X, Zhou J, Chan FL. Interplay between orphan nuclear receptors and androgen receptor-dependent or-independent growth signalings in prostate cancer. Mol Aspects Med 2020; 78:100921. [PMID: 33121737 DOI: 10.1016/j.mam.2020.100921] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 10/08/2020] [Accepted: 10/15/2020] [Indexed: 12/14/2022]
Abstract
It is well-established that both the initial and advanced growth of prostate cancer depends critically on androgens and thus on the activated androgen receptor (AR) -mediated signaling pathway. The unique hormone-dependent feature of prostate cancer forms the biological basis of hormone or androgen-deprivation therapy (ADT) that aims to suppress the AR signaling by androgen depletion or AR antagonists. ADT still remains the mainstay treatment option for locally advanced or metastatic prostate cancer. However, most patients upon ADT will inevitably develop therapy-resistance and progress to relapse in the form of castration-resistant disease (castration-resistant prostate cancer or CRPC) or even a more aggressive androgen-independent subtype (therapy-related neuroendocrine prostate cancer or NEPC). Recent advances show that besides AR, some ligand-independent members of nuclear receptor superfamily-designated as orphan nuclear receptors (ONRs), as their endogenous physiological ligands are either absent or not yet identified to date, also play significant roles in the growth regulation of prostate cancer via multiple AR-dependent or -independent (AR-bypass) pathways or mechanisms. In this review, we summarize the recent progress in the newly elucidated roles of ONRs in prostate cancer, with a focus on their interplay in the AR-dependent pathways (intratumoral androgen biosynthesis and suppression of AR signaling) and AR-independent pathways or cellular processes (hypoxia, oncogene- or tumor suppressor-induced senescence, apoptosis and regulation of prostate cancer stem cells). These ONRs with their newly characterized roles not only can serve as novel biomarkers but also as potential therapeutic targets for management of advanced prostate cancer.
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Affiliation(s)
- Yuliang Wang
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China.
| | - Weijie Gao
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Youjia Li
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Sin Ting Chow
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Wenjuan Xie
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Xingxing Zhang
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Jianfu Zhou
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China; Department of Urology, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510370, China
| | - Franky Leung Chan
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China.
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6
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Inder S, Bates M, Ni Labhrai N, McDermott N, Schneider J, Erdmann G, Jamerson T, Belle VA, Prina-Mello A, Thirion P, Manecksha PR, Cormican D, Finn S, Lynch T, Marignol L. Multiplex profiling identifies clinically relevant signalling proteins in an isogenic prostate cancer model of radioresistance. Sci Rep 2019; 9:17325. [PMID: 31758038 PMCID: PMC6874565 DOI: 10.1038/s41598-019-53799-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Accepted: 11/04/2019] [Indexed: 12/22/2022] Open
Abstract
The exact biological mechanism governing the radioresistant phenotype of prostate tumours at a high risk of recurrence despite the delivery of advanced radiotherapy protocols remains unclear. This study analysed the protein expression profiles of a previously generated isogenic 22Rv1 prostate cancer model of radioresistance using DigiWest multiplex protein profiling for a selection of 90 signalling proteins. Comparative analysis of the profiles identified a substantial change in the expression of 43 proteins. Differential PARP-1, AR, p53, Notch-3 and YB-1 protein levels were independently validated using Western Blotting. Pharmacological targeting of these proteins was associated with a mild but significant radiosensitisation effect at 4Gy. This study supports the clinical relevance of isogenic in vitro models of radioresistance and clarifies the molecular radiation response of prostate cancer cells.
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Affiliation(s)
- S Inder
- Translational Radiobiology and Molecular oncology, Applied Radiation Therapy Trinity, Trinity Translational Medicine Institute (TTMI), Trinity College Dublin, Dublin, Ireland
- Department of Urology, St James's Hospital, Dublin, Ireland
| | - M Bates
- Translational Radiobiology and Molecular oncology, Applied Radiation Therapy Trinity, Trinity Translational Medicine Institute (TTMI), Trinity College Dublin, Dublin, Ireland
| | - N Ni Labhrai
- Translational Radiobiology and Molecular oncology, Applied Radiation Therapy Trinity, Trinity Translational Medicine Institute (TTMI), Trinity College Dublin, Dublin, Ireland
| | - N McDermott
- Translational Radiobiology and Molecular oncology, Applied Radiation Therapy Trinity, Trinity Translational Medicine Institute (TTMI), Trinity College Dublin, Dublin, Ireland
| | | | - G Erdmann
- NMI TT Pharmaservices, Berlin, Germany
| | - T Jamerson
- Department of International Health, Mount Sinai School of Medicine, New York, USA
| | - V A Belle
- Department of International Health, Mount Sinai School of Medicine, New York, USA
| | - A Prina-Mello
- Laboratory for Biological Characterization of Advanced Materials (LBCAM), Trinity Translational Medicine Institute (TTMI), AMBER centre at CRANN Institute, Trinity College Dublin, Dublin, Ireland
- Department of Clinical Medicine, School of Medicine, Trinity College Dublin, Dublin, Ireland
| | - P Thirion
- St Luke's Radiation Oncology Network, St James's Hospital, Dublin, Ireland
| | - P R Manecksha
- Department of Urology, St James's Hospital, Dublin, Ireland
- Department of Surgery, Trinity College Dublin, Dublin, Ireland
| | - D Cormican
- Department of Histopathology, St James's Hospital, Dublin, Ireland
| | - S Finn
- Department of Histopathology, St James's Hospital, Dublin, Ireland
| | - T Lynch
- Department of Urology, St James's Hospital, Dublin, Ireland
| | - L Marignol
- Translational Radiobiology and Molecular oncology, Applied Radiation Therapy Trinity, Trinity Translational Medicine Institute (TTMI), Trinity College Dublin, Dublin, Ireland.
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7
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Wang Y, Mu L, Huang M. MicroRNA‑195 suppresses rectal cancer growth and metastasis via regulation of the PI3K/AKT signaling pathway. Mol Med Rep 2019; 20:4449-4458. [PMID: 31702045 PMCID: PMC6797947 DOI: 10.3892/mmr.2019.10717] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Accepted: 07/15/2019] [Indexed: 12/18/2022] Open
Abstract
MicroRNAs (miRNAs) play a vital role in the progression of cancer, however, only limited data on miRNAs in rectal cancer are available. The aim of the present study was to investigate whether miR-195 could inhibit the progression of rectal cancer. The miR-195 mimic was transfected into 2 types of human rectal cancer cells (SW837 and SW1463). Cell viability and apoptosis were analyzed by Cell Counting Kit-8 (CCK-8) assay and flow cytometry, and cell migration and invasion were assessed by scratch test and Transwell assay. The results revealed that insulin-like growth factor 1 (IGF1) was predicted as a potential target of miR-195 by Targetscan7.2, and the result was verified by dual-luciferase reporter assay. The co-transfection of IGF1 was performed to confirm the underlying mechanism of tumor suppressor of miR-195 in rectal cancer. The activation of PI3K/AKT signaling was determined by western blotting. The levels of miR-195 in SW837 and SW1463 cells were revealed to be lower than in human rectal mucosa epithelial cells. After the transfection with miR-195, the cell viability was decreased, while the apoptosis was significantly increased (SW837: 5.21% vs. 20.96%; SW1463: 4.19% vs. 25.22%). Moreover, cell migration and invasion were significantly inhibited in the mimic group. miR-195 specifically targeted IGF1, however, the co-transfection of IGF1 could partially reverse the inhibitory effects of miR-195 on rectal cancer cells. It was also determined that the phosphorylation of PI3K and AKT were significantly inhibited in the mimic group. The tumor suppressive ability of miR-195 in rectal cancer cell proliferation and metastasis was mediated by blocking IGF1 expression and inhibiting the PI3K/AKT pathway.
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Affiliation(s)
- Yeli Wang
- Department of Anorectal, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, Shandong 264000, P.R. China
| | - Linsong Mu
- Department of General Surgery, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, Shandong 264000, P.R. China
| | - Miaoling Huang
- Department of Anorectal, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, Shandong 264000, P.R. China
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8
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Zhang H, Shen T, Zhang Z, Li Y, Pan Z. Expression of KIF18A Is Associated with Increased Tumor Stage and Cell Proliferation in Prostate Cancer. Med Sci Monit 2019; 25:6418-6428. [PMID: 31451680 PMCID: PMC6724560 DOI: 10.12659/msm.917352] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
Background The role of KIF18A in tumorigenesis and tumor development has been well studied in several cancers, but not in prostate cancer. In this study, we investigated the potential prognostic utility of KIF18A and its role in prostate cancer progression. Material/Methods We collected prostate cancer and paracancerous tissue samples from the same patient. Immunohistochemical staining was performed to investigate the KIF18A expression levels in the clinical sample. The Cancer Genome Atlas (TCGA) database was analyzed via a bioinformatics approach to gain insight into the relationship between KIF18A expression and prognosis. We examined the effect of KIF18A knockdown on PC-3 cell proliferation via colony formation and MTT assays. Flow cytometry was used to assess the effect of KIF18A knockdown on PC-3 cell apoptosis. Transwell invasion assay was performed to assess whether KIF18A affects the invasion ability of PC-3 cells. Results The KIF18A protein level was higher in PCa tissue than in paracancerous tissue. The In addition, upregulated KIF18A suggested a poor tumor stage and prognosis for prostate cancer patients. Our in vitro experiments demonstrated that KIF18A knockdown in PC-3 cells significantly inhibited proliferation and metastasis. Conclusions High KIF18A expression in prostate cancer patients predicts a poor prognosis. KIF18A knockdown inhibits prostate cell proliferation and metastasis. Therefore, this study confirms the usefulness of KIF18A as an oncological prognostic indicator and a potential therapeutic target for prostate cancer.
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Affiliation(s)
- Hua Zhang
- Ultrasound Department, Tianjin Union Medical Center, Tianjin, China (mainland)
| | - Tianyu Shen
- Tianjin Institute of Urology, The Second Hospital of Tianjin Medical University, Tianjin, China (mainland).,Tianjin Medical University, Tianjin, China (mainland)
| | - Zheng Zhang
- Tianjin Institute of Urology, The Second Hospital of Tianjin Medical University, Tianjin, China (mainland)
| | - Yang Li
- Tianjin Institute of Urology, The Second Hospital of Tianjin Medical University, Tianjin, China (mainland)
| | - Zhongjie Pan
- Ultrasound Department, Tianjin Union Medical Center, Tianjin, China (mainland)
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9
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Shiota M, Fujimoto N, Kashiwagi E, Eto M. The Role of Nuclear Receptors in Prostate Cancer. Cells 2019; 8:cells8060602. [PMID: 31212954 PMCID: PMC6627805 DOI: 10.3390/cells8060602] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Revised: 06/12/2019] [Accepted: 06/13/2019] [Indexed: 12/12/2022] Open
Abstract
The nuclear receptor (NR) superfamily consists of 48 members that are divided into seven subfamilies. NRs are transcription factors that play an important role in a number of biological processes. The NR superfamily includes androgen receptor, which is a key player in prostate cancer pathogenesis, suggesting the functional roles of other NRs in prostate cancer. The findings on the roles of NRs in prostate cancer thus far have shown that several NRs such as vitamin D receptor, estrogen receptor β, and mineralocorticoid receptor play antioncogenic roles, while other NRs such as peroxisome proliferator-activated receptor γ and estrogen receptor α as well as androgen receptor play oncogenic roles. However, the roles of other NRs in prostate cancer remain controversial or uninvestigated. Further research on the role of NRs in prostate cancer is required and may lead to the development of novel preventions and therapeutics for prostate cancer.
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Affiliation(s)
- Masaki Shiota
- Department of Urology, Graduate School of Medical Sciences, Kyushu University, Fukuoka 812-8582, Japan.
| | - Naohiro Fujimoto
- Department of Urology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu 807-8555, Japan.
| | - Eiji Kashiwagi
- Department of Urology, Graduate School of Medical Sciences, Kyushu University, Fukuoka 812-8582, Japan.
| | - Masatoshi Eto
- Department of Urology, Graduate School of Medical Sciences, Kyushu University, Fukuoka 812-8582, Japan.
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10
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Zhang Z, Xie H, Zhu S, Chen X, Yu J, Shen T, Li X, Shang Z, Niu Y. High Expression of KIF22/Kinesin-Like DNA Binding Protein (Kid) as a Poor Prognostic Factor in Prostate Cancer Patients. Med Sci Monit 2018; 24:8190-8197. [PMID: 30427826 PMCID: PMC6247746 DOI: 10.12659/msm.912643] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Background Kid (kinesin-like DNA binding protein), a member of microtubule-dependent molecular motor proteins, also known as KIF22, is reported to be associated with carcinogenesis and cancer progression in different types of malignant tumor, but the biologic behavior and clinical outcome of KIF22 in prostate cancer (PCa) has not been well studied. This study aimed to analyze the association between KIF22 and clinical outcome in PCa patients. Material/Methods The expression of KIF22 in tumor specimens compared with paired paracancerous tissue from 114 patients undergoing radical prostatectomy was detected by immunohistochemistry; results were verified using The Cancer Genome Atlas (TCGA) database. Subsequently, the relationship between KIF22 expression and clinical prognosis of PCa patients was then statistically analyzed. Results Both immunohistochemistry and database analysis showed that KIF22 was obviously overexpressed in PCa tissues compared with paracancerous tissue. The overexpression of KIF22 at the protein level was significantly related to higher clinical stage (P=0.025), Gleason score (P=0.002), seminal vesicle invasion (P=0.007), and lymph node metastasis (P=0.009). Furthermore, with the overexpression of KIF22 mRNA level in PCa patients, the oncological prognosis of PCa patients was much poorer. Conclusions High-level expression of KIF22 was related to both tumor progression and adverse clinical outcome. For this reason, KIF22 may become a potential prognostic factor for PCa.
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Affiliation(s)
- Zheng Zhang
- Department of Urology, Tianjin Institute of Urology, The Second Hospital of Tianjin Medical University, Tianjin, China (mainland)
| | - Hui Xie
- Department of Urology, Tianjin Institute of Urology, The Second Hospital of Tianjin Medical University, Tianjin, China (mainland)
| | - Shimiao Zhu
- Department of Urology, Tianjin Institute of Urology, The Second Hospital of Tianjin Medical University, Tianjin, China (mainland)
| | - Xuanrong Chen
- Department of Urology, Tianjin Institute of Urology, The Second Hospital of Tianjin Medical University, Tianjin, China (mainland)
| | - Jianpeng Yu
- Department of Urology, Tianjin Institute of Urology, The Second Hospital of Tianjin Medical University, Tianjin, China (mainland)
| | - Tianyun Shen
- Department of Urology, Tianjin Institute of Urology, The Second Hospital of Tianjin Medical University, Tianjin, China (mainland)
| | - Xiaoqing Li
- Tianjin Medical University General Hospital, Tianjin, China (mainland)
| | - Zhiqun Shang
- Department of Urology, Tianjin Institute of Urology, The Second Hospital of Tianjin Medical University, Tianjin, China (mainland)
| | - Yuanjie Niu
- Department of Urology, Tianjin Institute of Urology, The Second Hospital of Tianjin Medical University, Tianjin, China (mainland)
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