1
|
Shi ZD, Han XX, Song ZJ, Dong Y, Pang K, Wang XL, Liu XY, Lu H, Xu GZ, Hao L, Dong BZ, Liang Q, Wu XK, Han CH. Integrative multi-omics analysis depicts the methylome and hydroxymethylome in recurrent bladder cancers and identifies biomarkers for predicting PD-L1 expression. Biomark Res 2023; 11:47. [PMID: 37138354 PMCID: PMC10155358 DOI: 10.1186/s40364-023-00488-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Accepted: 04/18/2023] [Indexed: 05/05/2023] Open
Abstract
BACKGROUND Urinary bladder cancer (UBC) is a common malignancy of the urinary tract; however, the mechanism underlying its high recurrence and responses to immunotherapy remains unclear, making clinical outcome predictions difficult. Epigenetic alterations, especially DNA methylation, play important roles in bladder cancer development and are increasingly being investigated as biomarkers for diagnostic or prognostic predictions. However, little is known about hydroxymethylation since previous studies based on bisulfite-sequencing approaches could not differentiate between 5mC and 5hmC signals, resulting in entangled methylation results. METHODS Tissue samples of bladder cancer patients who underwent laparoscopic radical cystectomy (LRC), partial cystectomy (PC), or transurethral resection of bladder tumor (TURBT) were collected. We utilized a multi-omics approach to analyze both primary and recurrent bladder cancer samples. By integrating various techniques including RNA sequencing, oxidative reduced-representation bisulfite sequencing (oxRRBS), reduced-representation bisulfite sequencing (RRBS), and whole exome sequencing, a comprehensive analysis of the genome, transcriptome, methylome, and hydroxymethylome landscape of these cancers was possible. RESULTS By whole exome sequencing, we identified driver mutations involved in the development of UBC, including those in FGFR3, KDMTA, and KDMT2C. However, few of these driver mutations were associated with the down-regulation of programmed death-ligand 1 (PD-L1) or recurrence in UBC. By integrating RRBS and oxRRBS data, we identified fatty acid oxidation-related genes significantly enriched in 5hmC-associated transcription alterations in recurrent bladder cancers. We also observed a series of 5mC hypo differentially methylated regions (DMRs) in the gene body of NFATC1, which is highly involved in T-cell immune responses in bladder cancer samples with high expression of PD-L1. Since 5mC and 5hmC alternations are globally anti-correlated, RRBS-seq-based markers that combine the 5mC and 5hmC signals, attenuate cancer-related signals, and therefore, are not optimal as clinical biomarkers. CONCLUSIONS By multi-omics profiling of UBC samples, we showed that epigenetic alternations are more involved compared to genetic mutations in the PD-L1 regulation and recurrence of UBC. As proof of principle, we demonstrated that the combined measurement of 5mC and 5hmC levels by the bisulfite-based method compromises the prediction accuracy of epigenetic biomarkers.
Collapse
Affiliation(s)
- Zhen-Duo Shi
- Department of Urology, Xuzhou Clinical School of Xuzhou Medical University, Jiangsu, China
- Department of Urology, Xuzhou Central Hospital, Xuzhou, Jiangsu, China
- School of Life Sciences, Jiangsu Normal University, Jiangsu, China
- Department of Urology, Heilongjiang Provincial Hospital, 82 Zhongshan Road, Xiangfang District, Harbin City, Heilongjiang Province, China
| | - Xiao-Xiao Han
- Clinical and Translational Research Center of Shanghai First Maternity and Infant Hospital, Shanghai Key Laboratory of Signaling and Disease Research, Frontier Science Center for Stem Cell Research, School of Life Sciences and Technology, Tongji University, Shanghai, China
| | - Zi-Jian Song
- Department of Urology, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yang Dong
- Department of Urology, Xuzhou Clinical School of Xuzhou Medical University, Jiangsu, China
- Department of Urology, Xuzhou Central Hospital, Xuzhou, Jiangsu, China
| | - Kun Pang
- Department of Urology, Xuzhou Clinical School of Xuzhou Medical University, Jiangsu, China
- Department of Urology, Xuzhou Central Hospital, Xuzhou, Jiangsu, China
| | - Xin-Lei Wang
- Department of Urology, Xuzhou Clinical School of Xuzhou Medical University, Jiangsu, China
- Department of Urology, Xuzhou Central Hospital, Xuzhou, Jiangsu, China
| | - Xin-Yu Liu
- Department of Urology, Xuzhou Clinical School of Xuzhou Medical University, Jiangsu, China
- Department of Urology, Xuzhou Central Hospital, Xuzhou, Jiangsu, China
| | - Hao Lu
- Department of Urology, Heilongjiang Provincial Hospital, 82 Zhongshan Road, Xiangfang District, Harbin City, Heilongjiang Province, China
| | - Guang-Zhi Xu
- Department of Urology, Heilongjiang Provincial Hospital, 82 Zhongshan Road, Xiangfang District, Harbin City, Heilongjiang Province, China
| | - Lin Hao
- Department of Urology, Xuzhou Clinical School of Xuzhou Medical University, Jiangsu, China
- Department of Urology, Xuzhou Central Hospital, Xuzhou, Jiangsu, China
| | - Bing-Zheng Dong
- Department of Urology, Xuzhou Clinical School of Xuzhou Medical University, Jiangsu, China
- Department of Urology, Xuzhou Central Hospital, Xuzhou, Jiangsu, China
| | - Qing Liang
- Department of Urology, Xuzhou Clinical School of Xuzhou Medical University, Jiangsu, China
- Department of Urology, Xuzhou Central Hospital, Xuzhou, Jiangsu, China
| | - Xiao-Ke Wu
- Department of Reproductive Medicine, Heilongjiang Provincial Hospital, 82 Zhongshan Road, Xiangfang DistrictHeilongjiang Province, Harbin City, China.
- Department of Gynaecology and Obstetrics, Heilongjiang Provincial Clinical Research Centre for Ovary Diseases, First Affiliated Hospital, Heilongjiang University of Chineses Medicine, 26 Heping Road, Xiangfang District, Harbin, Heilongjiang, China.
| | - Cong-Hui Han
- Department of Urology, Xuzhou Clinical School of Xuzhou Medical University, Jiangsu, China.
- Department of Urology, Xuzhou Central Hospital, Xuzhou, Jiangsu, China.
- School of Life Sciences, Jiangsu Normal University, Jiangsu, China.
- Department of Urology, Heilongjiang Provincial Hospital, 82 Zhongshan Road, Xiangfang District, Harbin City, Heilongjiang Province, China.
| |
Collapse
|
2
|
Afify H, Ghoneum A, Almousa S, Abdulfattah AY, Warren B, Langsten K, Gonzalez D, Casals R, Bharadwaj M, Kridel S, Said N. Metabolomic credentialing of murine carcinogen-induced urothelial cancer. Sci Rep 2021; 11:22085. [PMID: 34764423 PMCID: PMC8585868 DOI: 10.1038/s41598-021-99746-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Accepted: 09/28/2021] [Indexed: 11/24/2022] Open
Abstract
Bladder cancer (BCa) is the most common malignancy of the urinary system with increasing incidence, mortality, and limited treatment options. Therefore, it is imperative to validate preclinical models that faithfully represent BCa cellular, molecular, and metabolic heterogeneity to develop new therapeutics. We performed metabolomic profiling of premalignant and non-muscle invasive bladder cancer (NMIBC) that ensued in the chemical carcinogenesis N-butyl-N-(4-hydroxybutyl)-nitrosamine (BBN) mouse model. We identified the enriched metabolic signatures that associate with premalignant and NMIBC. We found that enrichment of lipid metabolism is the forerunner of carcinogen-induced premalignant and NMIBC lesions. Cross-species analysis revealed the prognostic value of the enzymes associated with carcinogen-induced enriched metabolic in human disease. To date, this is the first study describing the global metabolomic profiles associated with early premalignant and NMIBC and provide evidence that these metabolomic signatures can be used for prognostication of human disease.
Collapse
Affiliation(s)
- Hesham Afify
- Department of Cancer Biology, Medical Center Boulevard, Wake Forest University School of Medicine, Winston-Salem, NC, 27157, USA
| | - Alia Ghoneum
- Department of Cancer Biology, Medical Center Boulevard, Wake Forest University School of Medicine, Winston-Salem, NC, 27157, USA
| | - Sameh Almousa
- Department of Cancer Biology, Medical Center Boulevard, Wake Forest University School of Medicine, Winston-Salem, NC, 27157, USA
| | - Ammar Yasser Abdulfattah
- Department of Cancer Biology, Medical Center Boulevard, Wake Forest University School of Medicine, Winston-Salem, NC, 27157, USA
| | - Bailey Warren
- Department of Cancer Biology, Medical Center Boulevard, Wake Forest University School of Medicine, Winston-Salem, NC, 27157, USA
| | - Kendall Langsten
- Department of Cancer Biology, Medical Center Boulevard, Wake Forest University School of Medicine, Winston-Salem, NC, 27157, USA
| | - Daniela Gonzalez
- Department of Cancer Biology, Medical Center Boulevard, Wake Forest University School of Medicine, Winston-Salem, NC, 27157, USA
| | - Randy Casals
- Department of Cancer Biology, Medical Center Boulevard, Wake Forest University School of Medicine, Winston-Salem, NC, 27157, USA
- Department of Urology, Wake Forest University School of Medicine, Winston-Salem, NC, 27157, USA
| | - Manish Bharadwaj
- Cell Analysis Division, Agilent Technologies, Inc, Santa Clara, CA, 95051, USA
| | - Steven Kridel
- Department of Cancer Biology, Medical Center Boulevard, Wake Forest University School of Medicine, Winston-Salem, NC, 27157, USA
- Department of Urology, Wake Forest University School of Medicine, Winston-Salem, NC, 27157, USA
- Wake Forest Baptist Comprehensive Cancer Center, Winston-Salem, NC, 27157, USA
| | - Neveen Said
- Department of Cancer Biology, Medical Center Boulevard, Wake Forest University School of Medicine, Winston-Salem, NC, 27157, USA.
- Department of Urology, Wake Forest University School of Medicine, Winston-Salem, NC, 27157, USA.
- Department of Pathology, Wake Forest University School of Medicine, Winston-Salem, NC, 27157, USA.
- Wake Forest Baptist Comprehensive Cancer Center, Winston-Salem, NC, 27157, USA.
| |
Collapse
|
3
|
Jeong H, Oh HE, Kim H, Lee JH, Lee ES, Kim YS, Choi JW. Upregulation of Fatty Acid Transporters is Associated With Tumor Progression in Non-Muscle-Invasive Bladder Cancer. Pathol Oncol Res 2021; 27:594705. [PMID: 34257543 PMCID: PMC8262182 DOI: 10.3389/pore.2021.594705] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Accepted: 02/12/2021] [Indexed: 12/02/2022]
Abstract
As patients with non-muscle-invasive bladder cancer (NMIBC) show a high degree of heterogeneity in tumor recurrence or progression, many clinicians demand a detailed risk stratification. Although modified fatty acid metabolism in cancer cells is reported to reflect malignant phenotypes such as metastasis, the impact of fatty acid transporters on NMIBC has never been investigated. This study examined the clinicopathologic implications of fatty acid transporters such as fatty acid transport protein 4 (FATP4), cluster of differentiation 36/fatty acid translocase (CD36/FAT), and long chain acyl CoA synthetase 1 (ACSL1) in 286 NMIBC cases. This study revealed that FATP4, CD36, and ACSL1 were overexpressed in 123 (43.0%), 43 (15.0%), and 35 (12.2%) NMIBC cases, respectively. High FATP4 in tumor cells was associated with high grade (p = 0.004) and high stage (p = 0.039). High CD36 was related to high grade (p < 0.001), high stage (p = 0.002), and non-papillary growth type (p = 0.004). High ACSL1 showed an association with high grade (p < 0.001), high stage (p = 0.01), non-papillary growth type (p = 0.002), and metastasis (p = 0.033). High FATP4 was an independent factor predicting short overall survival (OS) (hazard ratio = 3.32; 95% confidence interval, 1.07-10.31; p = 0.038). In conclusion, upregulation of FATP4, CD36, and ACSL1 might promote the NMIBC progression and could be exploited in clinical risk stratification and targeted therapy.
Collapse
Affiliation(s)
| | | | | | | | | | | | - Jung-Woo Choi
- Department of Pathology, Korea University Ansan Hospital, Ansan, Korea
| |
Collapse
|
4
|
Shahid M, Kim M, Jin P, Zhou B, Wang Y, Yang W, You S, Kim J. S-Palmitoylation as a Functional Regulator of Proteins Associated with Cisplatin Resistance in Bladder Cancer. Int J Biol Sci 2020; 16:2490-2505. [PMID: 32792852 PMCID: PMC7415425 DOI: 10.7150/ijbs.45640] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Accepted: 05/02/2020] [Indexed: 12/25/2022] Open
Abstract
Protein S-palmitoylation is a powerful post-translational modification that regulates protein trafficking, localization, turnover, and signal transduction. Palmitoylation controls several important cellular processes, and, if dysregulated, can lead to cancer, cardiovascular disease, and neurological disorders. The role of protein palmitoylation in mediating resistance to systemic cisplatin-based chemotherapies in cancer is currently unknown. This is of particular interest because cisplatin is currently the gold standard of treatment for bladder cancer (BC), and there are no feasible options after resistance is acquired. Using unbiased global proteomic profiling of purified S-palmitoylated peptides combined with intensive bioinformatics analyses, we identified 506 candidate palmitoylated proteins significantly enriched in cisplatin-resistant BC cells. One of these proteins included PD-L1, which is highly palmitoylated in resistant cells. Pharmacological inhibition of fatty acid synthase (FASN) suppressed PD-L1 palmitoylation and expression, which suggests the potential use of FASN-PD-L1-targeted therapeutic strategies in BC patients. Taken together, these results highlight the role of protein palmitoylation in mediating BC chemoresistance.
Collapse
Affiliation(s)
- Muhammad Shahid
- Departments of Surgery and Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Minhyung Kim
- Departments of Surgery and Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Peng Jin
- Departments of Surgery and Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Bo Zhou
- Departments of Surgery and Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Yang Wang
- Departments of Surgery and Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Wei Yang
- Departments of Surgery and Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA, USA.,Department of Medicine, University of California Los Angeles, CA 90095, USA
| | - Sungyong You
- Departments of Surgery and Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Jayoung Kim
- Departments of Surgery and Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA, USA.,Department of Medicine, University of California Los Angeles, CA 90095, USA
| |
Collapse
|
5
|
Gupta A, Bansal N, Mitash N, Kumar D, Kumar M, Sankhwar SN, Mandhani A, Singh UP. NMR-derived targeted serum metabolic biomarkers appraisal of bladder cancer: A pre- and post-operative evaluation. J Pharm Biomed Anal 2020; 183:113134. [PMID: 32070930 DOI: 10.1016/j.jpba.2020.113134] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Revised: 01/24/2020] [Accepted: 01/26/2020] [Indexed: 12/23/2022]
Abstract
With high morbidity and mortality, urinary bladder cancer (BC) ranks fifth among common cancers globally. The inherent limitations of urine cytology and cystoscopy, and marginal enhancements in the rate of survival promt us to develop surrogate serum based metabolic biomarkers of screening, identification, and follow-up protocols of management for BC patients. Earlier, we exhibited that abnormal expression levels of dimethylamine (DMA), malonate, lactate, glutamine, histidine, and valine in serum may be used as signature metabolites to differentiate BC from healthy controls (HC) (J. Proteome Res. 2013; 12(12):5839-50). Here we further gauge and validate these observations by comparing pre-operative to post-operative follow-up BC patients. This study was conducted on 160 sera samples involving HC (n = 52), pre-operative (n = 55) and post-operative (n = 53) BC cases. 1H nuclear magnetic resonance (NMR) spectroscopy was used to generate serum metabolic profiles and to gauge aberrantly expressed metabolites. The targeted metabolomic approach revealed that the expression levels of these signature metabolites were progressively and significantly decreased in post-operative follow-up at the interval of 30, 60, and 90 days compared to pre-operative BC sera samples and were maintained at HC levels. Serum metabolic biomarkers appear to be an inspiring and least-invasive tactic for detection and prognosticating BC patient follow-up.
Collapse
Affiliation(s)
- Ashish Gupta
- Centre of Biomedical Research, SGPGIMS Campus, Lucknow, India.
| | - Navneeta Bansal
- Department of Urology, King George's Medical University, Lucknow, India
| | | | - Deepak Kumar
- Centre of Biomedical Research, SGPGIMS Campus, Lucknow, India
| | - Manoj Kumar
- Department of Urology, King George's Medical University, Lucknow, India
| | | | | | | |
Collapse
|
6
|
Vantaku V, Dong J, Ambati CR, Perera D, Donepudi SR, Amara CS, Putluri V, Ravi SS, Robertson MJ, Piyarathna DWB, Villanueva M, von Rundstedt FC, Karanam B, Ballester LY, Terris MK, Bollag RJ, Lerner SP, Apolo AB, Villanueva H, Lee M, Sikora AG, Lotan Y, Sreekumar A, Coarfa C, Putluri N. Multi-omics Integration Analysis Robustly Predicts High-Grade Patient Survival and Identifies CPT1B Effect on Fatty Acid Metabolism in Bladder Cancer. Clin Cancer Res 2019; 25:3689-3701. [PMID: 30846479 DOI: 10.1158/1078-0432.ccr-18-1515] [Citation(s) in RCA: 72] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Revised: 11/09/2018] [Accepted: 03/06/2019] [Indexed: 12/12/2022]
Abstract
PURPOSE The perturbation of metabolic pathways in high-grade bladder cancer has not been investigated. We aimed to identify a metabolic signature in high-grade bladder cancer by integrating unbiased metabolomics, lipidomics, and transcriptomics to predict patient survival and to discover novel therapeutic targets. EXPERIMENTAL DESIGN We performed high-resolution liquid chromatography mass spectrometry (LC-MS) and bioinformatic analysis to determine the global metabolome and lipidome in high-grade bladder cancer. We further investigated the effects of impaired metabolic pathways using in vitro and in vivo models. RESULTS We identified 519 differential metabolites and 19 lipids that were differentially expressed between low-grade and high-grade bladder cancer using the NIST MS metabolomics compendium and lipidblast MS/MS libraries, respectively. Pathway analysis revealed a unique set of biochemical pathways that are highly deregulated in high-grade bladder cancer. Integromics analysis identified a molecular gene signature associated with poor patient survival in bladder cancer. Low expression of CPT1B in high-grade tumors was associated with low FAO and low acyl carnitine levels in high-grade bladder cancer, which were confirmed using tissue microarrays. Ectopic expression of the CPT1B in high-grade bladder cancer cells led to reduced EMT in in vitro, and reduced cell proliferation, EMT, and metastasis in vivo. CONCLUSIONS Our study demonstrates a novel approach for the integration of metabolomics, lipidomics, and transcriptomics data, and identifies a common gene signature associated with poor survival in patients with bladder cancer. Our data also suggest that impairment of FAO due to downregulation of CPT1B plays an important role in the progression toward high-grade bladder cancer and provide potential targets for therapeutic intervention.
Collapse
Affiliation(s)
- Venkatrao Vantaku
- Department of Molecular and Cell Biology, Baylor College of Medicine, Houston, Texas
| | - Jianrong Dong
- Department of Molecular and Cell Biology, Baylor College of Medicine, Houston, Texas
| | - Chandrashekar R Ambati
- Dan L. Duncan Cancer Center, Advanced Technology Core, Alkek Center for Molecular Discovery, Baylor College of Medicine, Houston, Texas
| | - Dimuthu Perera
- Dan L. Duncan Cancer Center, Advanced Technology Core, Alkek Center for Molecular Discovery, Baylor College of Medicine, Houston, Texas
| | - Sri Ramya Donepudi
- Dan L. Duncan Cancer Center, Advanced Technology Core, Alkek Center for Molecular Discovery, Baylor College of Medicine, Houston, Texas
| | - Chandra Sekhar Amara
- Department of Molecular and Cell Biology, Baylor College of Medicine, Houston, Texas
| | - Vasanta Putluri
- Dan L. Duncan Cancer Center, Advanced Technology Core, Alkek Center for Molecular Discovery, Baylor College of Medicine, Houston, Texas
| | - Shiva Shankar Ravi
- Department of Molecular and Cell Biology, Baylor College of Medicine, Houston, Texas
| | - Matthew J Robertson
- Dan L. Duncan Cancer Center, Advanced Technology Core, Alkek Center for Molecular Discovery, Baylor College of Medicine, Houston, Texas
| | | | - Mariana Villanueva
- Dan L. Duncan Cancer Center, Advanced Technology Core, Alkek Center for Molecular Discovery, Baylor College of Medicine, Houston, Texas
| | | | - Balasubramanyam Karanam
- Department of Biology and Center for Cancer Research, Tuskegee University, Tuskegee, Alabama
| | - Leomar Y Ballester
- Pathology & Laboratory Medicine, Neurosurgery, University of Texas Health Science Center, Houston, Texas
| | | | | | - Seth P Lerner
- Scott Department of Urology, Baylor College of Medicine, Houston, Texas
| | - Andrea B Apolo
- Center for Cancer Research, National Cancer Institute, Bethesda, Maryland
| | - Hugo Villanueva
- Dan L. Duncan Cancer Center, Advanced Technology Core, Alkek Center for Molecular Discovery, Baylor College of Medicine, Houston, Texas
| | - MinJae Lee
- Division of Clinical and Translational Sciences, Department of Internal Medicine, McGovern Medical School at The University of Texas Health Science Center, Houston, Texas
| | - Andrew G Sikora
- Department of Otolaryngology-Head & Neck Surgery, Baylor College of Medicine, Houston, Texas
| | - Yair Lotan
- Department of Urology, University of Texas Southwestern, Dallas, Texas
| | - Arun Sreekumar
- Department of Molecular and Cell Biology, Baylor College of Medicine, Houston, Texas.,Verna and Marrs McLean Department of Biochemistry and Molecular Biology, Baylor College of Medicine, Houston, Texas
| | - Cristian Coarfa
- Department of Molecular and Cell Biology, Baylor College of Medicine, Houston, Texas.,Dan L. Duncan Cancer Center, Advanced Technology Core, Alkek Center for Molecular Discovery, Baylor College of Medicine, Houston, Texas.,Center for Precision Environmental Health, Baylor College of Medicine, Houston, Texas
| | - Nagireddy Putluri
- Department of Molecular and Cell Biology, Baylor College of Medicine, Houston, Texas.
| |
Collapse
|
7
|
Abdelrahman AE, Rashed HE, Elkady E, Elsebai EA, El-Azony A, Matar I. Fatty acid synthase, Her2/neu, and E2F1 as prognostic markers of progression in non-muscle invasive bladder cancer. Ann Diagn Pathol 2019; 39:42-52. [PMID: 30684846 DOI: 10.1016/j.anndiagpath.2019.01.002] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2018] [Revised: 12/25/2018] [Accepted: 01/15/2019] [Indexed: 12/29/2022]
Abstract
Non-muscle-invasive bladder cancer (NMIBC) is a heterogeneous disease which has an unpredictable risk of progression to muscle-invasive bladder cancer (MIBC). The selection of patients who may benefit from early radical intervention is a challenge. To define the useful prognostic markers for progression, we analyzed the immunohistochemical expression of fatty acid synthase (FASN), Her2/neu, and E2F1 in 60 cases of NMIBC who underwent TURBT and adjuvant intravesical bacillus-Calmette-Guérin (BCG). Their predicting role for tumor recurrence, progression, recurrence-free survival (RFS) and progression-free survival (PFS) was analyzed. High FASN expression was observed in 56.7% (34/60) of NMIBC cases, and FASN expression was significantly associated with the tumor size, grade, and tumor stage (p = 0.003, p < 0.001, p < 0.0001 respectively). Positive Her2/neu was noted in 18.3% (11/60) of the cases, and its expression was significantly associated with the tumor size, histologic grade, and tumor stage (p = 0.001, p = 0.002, p = 0.011 respectively). High E2F1 expression was detected in 40% of the cases, and it was associated with tumor size, histologic grade, and tumor stage (p < 0.001 for each). Analysis of follow-up period revealed that NMIBC with high FASN, positive Her2/neu, and high E2F1 expression exhibited a potent relation with tumor progression, shorter RFS, and poor PFS. Conclusions: High FASN, Her2/neu, and E2F1 are considered as adverse prognostic factors of tumor recurrence and progression in NMIBC and these patients should be followed carefully. Therefore, we suggest that FASN, Her2/neu, and E2F1 should be considered and evaluated during the selection of the appropriate management strategy for NMIBC patients.
Collapse
Affiliation(s)
| | - Hayam E Rashed
- Pathology Department, Faculty of Medicine, Zagazig University, Egypt
| | - Ehab Elkady
- Urology Department, Faculty of Medicine, Zagazig University, Egypt
| | - Eman A Elsebai
- Clinical Oncology and Nuclear Medicine Department, Faculty of Medicine, Zagazig University, Egypt
| | - Ahmed El-Azony
- Clinical Oncology and Nuclear Medicine Department, Faculty of Medicine, Zagazig University, Egypt
| | - Ihab Matar
- Surgical Oncology Department, Al-Ahrar Zagazig Teaching Hospital, Egypt
| |
Collapse
|
8
|
Ben Fradj MK, Ouanes Y, Hadj-Taieb S, Sallemi A, Kallel A, Jemaa R, Kaabachi N, Nouira Y, Feki M. Decreased Oleic Acid and Marine n - 3 Polyunsaturated Fatty Acids in Tunisian Patients with Urothelial Bladder Cancer. Nutr Cancer 2018; 70:1043-1050. [PMID: 30183426 DOI: 10.1080/01635581.2018.1497668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
Fatty acids (FAs) are thought to impact carcinogenesis by affecting cell signaling. A case-control study including 250 patients with urothelial bladder cancer (UBC) and 250 controls was conducted. Plasma FAs composition was assessed using capillary gas chromatography. Associations of individual and classes of FAs with UBC were controlled for the main risk factors for UBC. Plasma FAs profile was different in patients compared to controls. Higher levels (third tertile vs. first tertile) in palmitic acid (PA) [multi-adjusted OR (95% CI), 1.83 (1.14-2.92)], and n - 6:n - 3 FA ratio [4.13 (2.38-7.16)] were associated with increased risk for UBC [multi-adjusted OR (95% CI), 1.83 (1.14-2.92)]. In contrast, higher levels (third tertile vs. first tertile) in oleic [0.54 (0.34-0.86)], dihomo-γ-linolenic (DGLA) [0.47 (0.29-0.74)], eicosapentaenoic (EPA) [0.32 (0.19-0.52)], and docosahexaenoic (DHA) acids [0.33 (0.20-0.53)] were associated with lower risk for UBC. Although the study design does not allow proving causality, the findings suggest a possible protective role of oleic acid and marine n - 3 polyunsaturated FAs (PUFAs) against bladder carcinogenesis.
Collapse
Affiliation(s)
- Mohamed Kacem Ben Fradj
- a Faculty of Medicine of Tunis , University of Tunis El Manar , Tunis , Tunisia.,b Laboratory of Biochemistry , Rabta University Hospital , Tunis , Tunisia
| | - Yassine Ouanes
- a Faculty of Medicine of Tunis , University of Tunis El Manar , Tunis , Tunisia.,c Department of Urology , Rabta University Hospital , Tunis , Tunisia
| | - Sameh Hadj-Taieb
- a Faculty of Medicine of Tunis , University of Tunis El Manar , Tunis , Tunisia.,b Laboratory of Biochemistry , Rabta University Hospital , Tunis , Tunisia
| | - Ahmed Sallemi
- a Faculty of Medicine of Tunis , University of Tunis El Manar , Tunis , Tunisia.,c Department of Urology , Rabta University Hospital , Tunis , Tunisia
| | - Amani Kallel
- a Faculty of Medicine of Tunis , University of Tunis El Manar , Tunis , Tunisia.,b Laboratory of Biochemistry , Rabta University Hospital , Tunis , Tunisia
| | - Riadh Jemaa
- a Faculty of Medicine of Tunis , University of Tunis El Manar , Tunis , Tunisia.,b Laboratory of Biochemistry , Rabta University Hospital , Tunis , Tunisia
| | - Naziha Kaabachi
- a Faculty of Medicine of Tunis , University of Tunis El Manar , Tunis , Tunisia.,b Laboratory of Biochemistry , Rabta University Hospital , Tunis , Tunisia
| | - Yassine Nouira
- a Faculty of Medicine of Tunis , University of Tunis El Manar , Tunis , Tunisia.,c Department of Urology , Rabta University Hospital , Tunis , Tunisia
| | - Moncef Feki
- a Faculty of Medicine of Tunis , University of Tunis El Manar , Tunis , Tunisia.,b Laboratory of Biochemistry , Rabta University Hospital , Tunis , Tunisia
| |
Collapse
|
9
|
Inhibitory Effects of Cichorium Intybus Root Extract on the Proliferation and Lipogenesis of the SKBR3 Cells. INTERNATIONAL JOURNAL OF CANCER MANAGEMENT 2018. [DOI: 10.5812/ijcm.9436] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
10
|
Presler M, Wojtczyk-Miaskowska A, Schlichtholz B, Kaluzny A, Matuszewski M, Mika A, Sledzinski T, Swierczynski J. Increased expression of the gene encoding stearoyl-CoA desaturase 1 in human bladder cancer. Mol Cell Biochem 2018; 447:217-224. [PMID: 29396722 PMCID: PMC6133071 DOI: 10.1007/s11010-018-3306-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2017] [Accepted: 01/25/2018] [Indexed: 01/01/2023]
Abstract
Bladder cancer is a common disease and a significant cause of death worldwide. There is thus great interest in identifying a diagnostic and prognostic biomarker, as well as gaining an understanding of the molecular basis of bladder cancer. Stearoyl-CoA desaturase 1 gene (SCD1) is highly overexpressed in many human cancers. However, the expression of SCD1 has not yet been investigated in patients with bladder cancer. Here, we document that (a) the SCD1 is highly overexpressed in human bladder cancer; (b) high expression of SCD1 is more frequently observed in the late stage of disease and patients with lymph node metastasis; (c) bladder cancer patients with a higher SCD1 mRNA level have a poorer survival rate than those with normal SCD1 expression. Overall, this is the first report to indicate an association between SCD1 mRNA level and clinical indicators of human bladder cancer. Our study has provided evidence supporting the potential role of SCD1 as a biomarker for human bladder cancer prognosis.
Collapse
Affiliation(s)
- M Presler
- Department of Biochemistry, Medical University of Gdansk, Debinki 1, 80-211, Gdansk, Poland
| | - A Wojtczyk-Miaskowska
- Department of Biochemistry, Medical University of Gdansk, Debinki 1, 80-211, Gdansk, Poland
| | - B Schlichtholz
- Department of Biochemistry, Medical University of Gdansk, Debinki 1, 80-211, Gdansk, Poland
| | - A Kaluzny
- Department of Urology, Medical University of Gdansk, Smoluchowskiego 17, 80-214, Gdansk, Poland
| | - M Matuszewski
- Department of Urology, Medical University of Gdansk, Smoluchowskiego 17, 80-214, Gdansk, Poland
| | - A Mika
- Department of Pharmaceutical Biochemistry, Medical University of Gdansk, Debinki 1, 80-211, Gdansk, Poland.,Department of Environmental Analysis, Faculty of Chemistry, University of Gdansk, Wita Stwosza 63, 80-308, Gdansk, Poland
| | - T Sledzinski
- Department of Pharmaceutical Biochemistry, Medical University of Gdansk, Debinki 1, 80-211, Gdansk, Poland
| | - J Swierczynski
- Department of Biochemistry, Medical University of Gdansk, Debinki 1, 80-211, Gdansk, Poland. .,State School of Higher Vocational Education in Koszalin, Lesna 1, 75-582, Koszalin, Poland.
| |
Collapse
|
11
|
Quantitative proteomic analysis reveals that proteins required for fatty acid metabolism may serve as diagnostic markers for gastric cancer. Clin Chim Acta 2016; 464:148-154. [PMID: 27884752 DOI: 10.1016/j.cca.2016.11.032] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2016] [Revised: 11/18/2016] [Accepted: 11/21/2016] [Indexed: 12/23/2022]
Abstract
BACKGROUND Gastric cancer is one of the leading causes of cancer-related deaths worldwide. The sensitivities and specificities of current biomarkers for gastric cancer are insufficient for clinical detection, and new diagnostic tests are therefore urgently required. METHODS A discovery set of gastric cancer and adjacent normal tissues were analyzed for differentially expressed proteins by labeling of peptide digests with isobaric tag for relative and absolute quantitation (iTRAQ) reagents followed by liquid chromatography-electrospray ionization-tandem mass spectrometry. A validation set of 70 pairs of gastric cancer and adjacent normal tissues were examined to confirm the expression levels of the potential biomarkers identified by iTRAQ labeling. RESULTS We detected 431 proteins associated with 16 KEGG pathways that were differentially expressed in gastric cancer tissues, of which 224 were upregulated and 207 were downregulated in gastric cancer tissues. Coexpression of fatty acid binding protein (FABP1) and fatty acid synthase (FASN) in gastric cancer tissues (61.4% sensitivity and 77.1% specificity) was strongly associated with lymph node metastasis and Tumor, Node, Metastasis stage I/II. CONCLUSION Quantitative proteomic analysis of gastric cancer tissues revealed that coexpression of FABP1 and FASN may serve as a biomarker for detection of early gastric cancer.
Collapse
|
12
|
Zhou Y, Song R, Zhang Z, Lu X, Zeng Z, Hu C, Liu X, Li Y, Hou J, Sun Y, Xu C, Xu G. The development of plasma pseudotargeted GC-MS metabolic profiling and its application in bladder cancer. Anal Bioanal Chem 2016; 408:6741-9. [PMID: 27473428 DOI: 10.1007/s00216-016-9797-0] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2016] [Revised: 06/22/2016] [Accepted: 07/14/2016] [Indexed: 11/25/2022]
Abstract
Bladder cancer (BC) is a fatal malignancy with considerable mortality. BC urinary metabolomics has been extensively investigated for biomarker discovery, but few BC blood metabolomic studies have been performed. Hence, a plasma pseudotargeted metabolomic method based on gas chromatography-mass spectrometry with selected ion monitoring (GC-MS-SIM) was developed to study metabolic alterations in BC. The analytical performance of the developed method was compared with that of a nontargeted method. The relative standard deviation (RSD) values of 89 and 70.7 % of the peaks obtained using the pseudotargeted and nontargeted methods, respectively, were less than 20 %. The Pearson correlations of 90.7 and 78.3 % of the peaks obtained using the pseudotargeted and nontargeted methods, respectively, exceeded 0.90 in the linearity evaluation. Compared with the nontargeted method, the signal-to-noise ratios (S/N) of 97.9 and 69.3 % of the peaks increased two- and fivefold, respectively. The developed method was fully validated, with good precision, recovery, and stability of the trimethylsilyl (TMS) derivatives. The method was applied to investigate BC. Significant increases in the contents of metabolites involved in, for example, the pentose phosphate pathway (PPP) and nucleotide and fatty acid synthesis were found in the high-grade (HG) BC group compared to the healthy control (HC) group. These differences imply that the activated PPP may regulate BC cell proliferation by promoting lipid and nucleotide biosynthesis and the detoxification of reactive oxygen species (ROS). These results illustrate that the plasma pseudotargeted method is a powerful tool for metabolic profiling. Graphical abstract The plasma pseudotargeted metabolic profiling suggested the metabolic alterations in bladder cancer (BC) and the significantly differential metabolites for BC discrimination.
Collapse
Affiliation(s)
- Yang Zhou
- Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, Liaoning, 116023, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Ruixiang Song
- Department of Urology, Shanghai Changhai Hospital, Secondary Military Medical University, Shanghai, 200433, China
| | - Zhensheng Zhang
- Department of Urology, Shanghai Changhai Hospital, Secondary Military Medical University, Shanghai, 200433, China
| | - Xin Lu
- Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, Liaoning, 116023, China.
| | - Zhongda Zeng
- Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, Liaoning, 116023, China
| | - Chunxiu Hu
- Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, Liaoning, 116023, China
| | - Xinyu Liu
- Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, Liaoning, 116023, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yanli Li
- Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, Liaoning, 116023, China
| | - Jianguo Hou
- Department of Urology, Shanghai Changhai Hospital, Secondary Military Medical University, Shanghai, 200433, China
| | - Yinghao Sun
- Department of Urology, Shanghai Changhai Hospital, Secondary Military Medical University, Shanghai, 200433, China
| | - Chuanliang Xu
- Department of Urology, Shanghai Changhai Hospital, Secondary Military Medical University, Shanghai, 200433, China.
| | - Guowang Xu
- Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, Liaoning, 116023, China
| |
Collapse
|
13
|
Luo Y, Zhang X, Mo M, Tan Z, Huang L, Zhou H, Wang C, Wei F, Qiu X, He R, Chen G. High Ki-67 Immunohistochemical Reactivity Correlates With Poor Prognosis in Bladder Carcinoma: A Comprehensive Meta-Analysis with 13,053 Patients Involved. Medicine (Baltimore) 2016; 95:e3337. [PMID: 27082587 PMCID: PMC4839831 DOI: 10.1097/md.0000000000003337] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Ki-67 is considered as one of prime biomarkers to reflect cell proliferation and immunohistochemical Ki-67 staining has been widely applied in clinical pathology. To solve the widespread controversy whether Ki-67 reactivity significantly predicts clinical prognosis of bladder carcinoma (BC), we performed a comprehensive meta-analysis by combining results from different literature. A comprehensive search was conducted in the Chinese databases of WanFang, China National Knowledge Infrastructure and Chinese VIP as well as English databases of PubMed, ISI web of science, EMBASE, Science Direct, and Wiley online library. Independent studies linking Ki-67 to cancer-specific survival (CSS), disease-free survival (DFS), overall survival (OS), progression-free survival (PFS), and recurrence-free survival (RFS) were included in our meta-analysis. With the cut-off values literature provided, hazard ratio (HR) values between the survival distributions were extracted and later combined with STATA 12.0. In total, 76 studies (n = 13,053 patients) were eligible for the meta-analysis. It was indicated in either univariate or multivariate analysis for survival that high Ki-67 reactivity significantly predicted poor prognosis. In the univariate analysis, the combined HR for CSS, DFS, OS, PFS, and RFS were 2.588 (95% confidence interval [CI]: 1.623-4.127, P < 0.001), 2.697 (95%CI: 1.874-3.883, P < 0.001), 2.649 (95%CI: 1.632-4.300, P < 0.001), 3.506 (95%CI: 2.231-5.508, P < 0.001), and 1.792 (95%CI: 1.409-2.279, P < 0.001), respectively. The pooled HR of multivariate analysis for CSS, DFS, OS, PFS, and RFS were 1.868 (95%CI: 1.343-2.597, P < 0.001), 2.626 (95%CI: 2.089-3.301, P < 0.001), 1.104 (95%CI: 1.008-1.209, P = 0.032), 1.518 (95%CI: 1.299-1.773, P < 0.001), and 1.294 (95%CI: 1.203-1.392, P < 0.001), respectively. Subgroup analysis of univariate analysis by origin showed that Ki-67 reactivity significantly correlated with all 5 clinical outcome in Asian and European-American patients (P < 0.05). For multivariate analysis, however, the pooled results were only significant for DFS, OS, and RFS in Asian patients, for CSS, DFS, PFS, and RFS in European-American patients (P < 0.05). In the subgroup with low cut-off value (<20%), our meta-analysis indicated that high Ki-67 reactivity was significantly correlated with worsened CSS, DFS, OS, PFS, and RFS on univariate analysis (P < 0.05). For multivariate analysis, the meta-analysis of literature with low cut-off value (<20%) demonstrated that high Ki-67 reactivity predicted shorter DFS, PFS, and RFS in BC patients (P < 0.05). In the subgroup analysis of high cut-off value (≥20%), our meta-analysis indicated that high Ki-67 reactivity, in either univariate or multivariate analysis, significantly correlated with all five clinical outcomes in BC patients (P < 0.05). The meta-analysis indicates that high Ki-67 reactivity significantly correlates with deteriorated clinical outcomes in BC patients and that Ki-67 can be considered as an independent indicator for the prognosis by the meta-analyses of multivariate analysis.
Collapse
Affiliation(s)
- Yihuan Luo
- From the Department of Pathology, First Affiliated Hospital of Guangxi Medical University (YL, XZ, MM, ZT, LH, HZ, CW, FW, XQ, GC); and Center for Genomic and Personalized Medicine, Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region, China (RH)
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
14
|
Piri R, Ghaffari A, Gholami N, Azami-Aghdash S, PourAli-Akbar Y, Saleh P, Naghavi-Behzad M. Ki-67/MIB-1 as a Prognostic Marker in Cervical Cancer - a Systematic Review with Meta-Analysis. Asian Pac J Cancer Prev 2015; 16:6997-7002. [DOI: 10.7314/apjcp.2015.16.16.6997] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
|
15
|
Kim K, Sung CO, Park BH, Ku JY, Go H, Ro JY, Kim J, Cho YM. Immunoprofile-based subgrouping of urothelial bladder carcinomas for survival prediction. Hum Pathol 2015; 46:1464-70. [PMID: 26232864 DOI: 10.1016/j.humpath.2015.06.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2015] [Revised: 05/26/2015] [Accepted: 06/03/2015] [Indexed: 12/31/2022]
Abstract
One of the major challenges in bladder cancer management is in distinguishing aggressive from indolent tumors with similar clinicopathological factors, especially in cases of high-grade T1 stage tumors. To define a set of prognostic factors that can be easily assessed in clinical practice with a high cost-effectiveness, the expressions of 11 proteins were examined immunohistochemically in 403 cases of transurethral resection of bladder tumors, then correlated to clinical outcomes. Based on the protein immunoprofiles, urothelial carcinomas were divided into 4 intrinsic molecular subgroups with different clinical outcomes: subgroups 1 and 4 with the poorest survival, subgroup 2 with the best survival, and subgroup 3 with the intermediate survival outcome. The protein expression patterns of the 4 subgroups were mutually exclusive: overexpression of p53, EZH2, E2F1, and IMP3 and high Ki-67 proliferation index in subgroup 1; overexpression of cytoplasmic survivin in subgroup 4; overexpression of membranous TSP1 and cytoplasmic p27 in subgroup 2; and no representative protein overexpression in subgroup 3. Using these protein immunoprofiles, 3 risk groups were generated, which predicted disease-specific survival not only in total bladder carcinoma cases with 0.737 of predictive accuracy but also in high-grade stage T1 tumors with 0.658 of predictive accuracy. These results showed that urothelial carcinomas were composed of 4 clinically relevant molecular subgroups based on protein expression and that overall survival of those patients could be predicted using a set of a small number of protein expressions not only in total cases but also in high-grade stage T1 tumors.
Collapse
Affiliation(s)
- Kyungeun Kim
- Department of Pathology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Chang Ohk Sung
- Department of Pathology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Bong-Hee Park
- Department of Pathology, Green Cross Laboratories, Yongin-si, Kyunggi-do, Republic of Korea
| | - Ja Yoon Ku
- University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Heounjeong Go
- Department of Pathology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Jae Y Ro
- Department of Pathology and Genomic Medicine, Houston Methodist Hospital, Weill Medical College of Cornell University, Houston, TX 77030
| | - Jiyoon Kim
- Department of Pathology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Yong Mee Cho
- Department of Pathology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea.
| |
Collapse
|
16
|
Bian Y, Yu Y, Wang S, Li L. Up-regulation of fatty acid synthase induced by EGFR/ERK activation promotes tumor growth in pancreatic cancer. Biochem Biophys Res Commun 2015; 463:612-7. [PMID: 26043686 DOI: 10.1016/j.bbrc.2015.05.108] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2015] [Accepted: 05/29/2015] [Indexed: 02/08/2023]
Abstract
Lipid metabolism is dysregulated in many human diseases including atherosclerosis, type 2 diabetes and cancers. Fatty acid synthase (FASN), a key lipogenic enzyme involved in de novo lipid biosynthesis, is significantly upregulated in multiple types of human cancers and associates with tumor progression. However, limited data is available to understand underlying biological functions and clinical significance of overexpressed FASN in pancreatic ductal adenocarcinoma (PDAC). Here, upregulated FASN was more frequently observed in PDAC tissues compared with normal pancreas in a tissue microarray. Kaplan-Meier survival analysis revealed that high expression level of FASN resulted in a significantly poor prognosis of PDAC patients. Knockdown or inhibition of endogenous FASN decreased cell proliferation and increased cell apoptosis in HPAC and AsPC-1 cells. Furthermore, we demonstrated that EGFR/ERK signaling accounts for elevated FASN expression in PDAC as ascertained by performing siRNA assays and using specific pharmacological inhibitors. Collectively, our results indicate that FASN exhibits important roles in tumor growth and EGFR/ERK pathway is responsible for upregulated expression of FASN in PDAC.
Collapse
Affiliation(s)
- Yong Bian
- Department of Science and Technology, Nanjing University of Chinese Medicine, 210023, PR China.
| | - Yun Yu
- College of Pharmacy, Nanjing University of Chinese Medicine, 210023, PR China
| | - Shanshan Wang
- Department of Science and Technology, Nanjing University of Chinese Medicine, 210023, PR China
| | - Lin Li
- Department of Science and Technology, Nanjing University of Chinese Medicine, 210023, PR China
| |
Collapse
|
17
|
Expression patterns and prognostic role of transketolase-like 1 in muscle-invasive bladder cancer. World J Urol 2015; 33:1403-9. [DOI: 10.1007/s00345-014-1473-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2014] [Accepted: 12/25/2014] [Indexed: 10/24/2022] Open
|
18
|
Dietary lipids and adipocytes: potential therapeutic targets in cancers. J Nutr Biochem 2014; 26:303-11. [PMID: 25524629 DOI: 10.1016/j.jnutbio.2014.11.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2014] [Revised: 11/12/2014] [Accepted: 11/18/2014] [Indexed: 12/22/2022]
Abstract
Lipids play an important role to support the rapid growth of cancer cells, which can be derived from both the endogenous synthesis and exogenous supplies. Enhanced de novo fatty acid synthesis and mobilization of stored lipids in cancer cells promote tumorigenesis. Besides, lipids and fatty acids derived from diet or transferred from neighboring adipocytes also influence the proliferation and metastasis of cancer cells. Indeed, the pathogenic roles of adipocytes in the tumor microenvironment have been recognized recently. The adipocyte-derived mediators or the cross talk between adipocytes and cancer cells in the microenvironment is gaining attention. This review will focus on the impacts of lipids on cancers and the pathogenic roles of adipocytes in tumorigenesis and discuss the possible anticancer therapeutic strategies targeting lipids in the cancer cells.
Collapse
|
19
|
Hao Q, Li T, Zhang X, Gao P, Qiao P, Li S, Geng Z. Expression and roles of fatty acid synthase in hepatocellular carcinoma. Oncol Rep 2014; 32:2471-6. [PMID: 25231933 DOI: 10.3892/or.2014.3484] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2014] [Accepted: 08/30/2014] [Indexed: 11/06/2022] Open
Abstract
Cell metabolism abnormalities are closely related to tumor occurrence and development. Fatty acid synthase (FASN) is the key molecule for catalyzing fatty acid synthesis. Increasing evidence indicates that FASN is highly expressed in a number of malignant tumors; it can promote the synthesis of endogenous fatty acids in tumor cells and then the synthesized fatty acids provide energy for the proliferation of tumor cells. However, there has been no systematic study focusing on FASN expression and function in hepatocellular carcinoma (HCC). The aim of the present study was to verify the high expression of FASN in HCC cells at the histological and cellular levels, and to construct FASN shRNA eukaryotic expression vector for interfering FASN expression in HCC cell line SK-Hep-1, in an effort to explore the role of FASN in the proliferation, apoptosis, invasion and migration of HCC cells. In the present study, we demonstrated that FASN was highly expressed in HCC tissues compared with tumor-adjacent tissue and normal liver cell line 7702 (P<0.05). FASN expression in the high metastatic MHCC97H and SK-Hep-1 cell lines was increased compared with low metastatic HCC cell lines (P<0.05). Then, we constructed a FASN shRNA eukaryotic expression vector; after HCC SK-Hep-1 cells were transfected, the cell proliferation, migration and invasion were inhibited, but FASN had no impact on the apoptosis of HCC cells. Collectively, these data indicate that FASN is possibly involved in the occurrence and metastasis of HCC. Thus, inhibition of FASN may be a promising approach for the treatment of HCC.
Collapse
Affiliation(s)
- Qiwei Hao
- Department of Hepatobiliary Surgery, Second Hospital of Yulin City, Yulin, Shaanxi 719000, P.R. China
| | - Tao Li
- Department of Hepatobiliary Surgery, Second Hospital of Yulin City, Yulin, Shaanxi 719000, P.R. China
| | - Xiong Zhang
- Department of Hepatobiliary Surgery, Second Hospital of Yulin City, Yulin, Shaanxi 719000, P.R. China
| | - Ping Gao
- Department of Hepatobiliary Surgery, Second Hospital of Yulin City, Yulin, Shaanxi 719000, P.R. China
| | - Peiyu Qiao
- Department of Hepatobiliary Surgery, Second Hospital of Yulin City, Yulin, Shaanxi 719000, P.R. China
| | - Sheng Li
- Department of Hepatobiliary Surgery, Second Hospital of Yulin City, Yulin, Shaanxi 719000, P.R. China
| | - Zhimin Geng
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, College of Medicine, Xi'an, Shaanxi 710061, P.R. China
| |
Collapse
|
20
|
Böhm M, Schostak M, Hakenberg OW. Urinary immunocytology—Promise or nonseller? A review with an opinion. Urol Oncol 2014; 32:383-90. [DOI: 10.1016/j.urolonc.2013.11.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2013] [Revised: 10/18/2013] [Accepted: 11/05/2013] [Indexed: 12/22/2022]
|
21
|
Hamada S, Horiguchi A, Asano T, Kuroda K, Asakuma J, Ito K, Asano T, Miyai K, Iwaya K. Prognostic impact of fatty acid synthase expression in upper urinary tract urothelial carcinoma. Jpn J Clin Oncol 2014; 44:486-92. [PMID: 24643292 DOI: 10.1093/jjco/hyu020] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
OBJECTIVE Fatty acid synthase has been shown to be highly expressed in various types of cancers with increased tumour aggressiveness. In this study we examined the level of fatty acid synthase expression in surgically resected upper urinary tract urothelial carcinoma specimens and evaluated the relations between fatty acid synthase expression and the patients' pathological features and clinical outcomes. METHODS Sections of paraffin-embedded tumour specimens from 113 patients who underwent surgical treatment for upper urinary tract urothelial carcinoma were immunostained with a polyclonal fatty acid synthase antibody, and a tumour was considered to have high fatty acid synthase expression if >50% of the cancer cells stained with moderate-to-strong intensity. Associations between fatty acid synthase expression and the patients' pathological parameters and survival were analyzed statistically. RESULTS During the follow-up time (median: 46.8 months), 61 patients (54.0%) had recurrence and 17 (15.0%) died of upper urinary tract urothelial carcinoma. High fatty acid synthase expression was significantly associated with high tumour grade (P = 0.0273). Patients with high fatty acid synthase expression had significantly worse recurrence-free survival and extravesical-recurrence-free survival than those with low fatty acid synthase expression (P = 0.0171, P = 0.0228, respectively). In multivariate analysis, high fatty acid synthase expression was an independent predictor of shortened recurrence-free survival (P = 0.0220, hazard ratio (HR) = 1.970). CONCLUSIONS Fatty acid synthase expression in upper urinary tract urothelial carcinoma is an independent predictor for tumour recurrence. Patients with high fatty acid synthase expression in upper urinary tract urothelial carcinoma should be followed carefully and adjuvant therapy for them should be considered.
Collapse
Affiliation(s)
- Shinsuke Hamada
- *Department of Urology, National Defense Medical College, 3-2 Namiki, Tokorozawa, Saitama 359-8513, Japan.
| | | | | | | | | | | | | | | | | |
Collapse
|
22
|
Ito T, Sato K, Maekawa H, Sakurada M, Orita H, Shimada K, Daida H, Wada R, Abe M, Hino O, Kajiyama Y. Elevated levels of serum fatty acid synthase in patients with gastric carcinoma. Oncol Lett 2014; 7:616-620. [PMID: 24527066 PMCID: PMC3919915 DOI: 10.3892/ol.2014.1793] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2013] [Accepted: 12/06/2013] [Indexed: 02/06/2023] Open
Abstract
Gastric cancer is the second leading cause of cancer mortality in the world. It is important to develop biomarkers for detecting new cancers at an early stage and for treating them early during recurrence in order to guide optimal treatment. Fatty acid synthase (FAS) is highly expressed in numerous human cancers and thus could potentially serve as such a biomarker, but the potential utility of measuring FAS for detecting gastric cancer has not been previously investigated. The aim of the present study was to provide a preliminary assessment of serum FAS as a marker of gastric carcinoma. The study included 47 patients with gastric cancer and 150 healthy subjects. Blood samples were collected from each cancer patient prior to treatment. Serum FAS levels were measured by ELISA and compared across the two groups of patients. Significantly higher levels of serum FAS were found in the gastric cancer patients [95% confidence interval (CI), 30.37–52.46] compared with the healthy controls (95% CI, 1.331–2.131), with elevated levels even in patients with early-stage tumors. These results indicate that measuring serum FAS levels has strong potential to provide a biomarker for the detection of gastric cancer, with high sensitivity and specificity.
Collapse
Affiliation(s)
- Tomoaki Ito
- Department of Surgery, Juntendo Shizuoka Hospital, Juntendo University School of Medicine, Shizuoka, Japan
| | - Koichi Sato
- Department of Surgery, Juntendo Shizuoka Hospital, Juntendo University School of Medicine, Shizuoka, Japan
| | - Hiroshi Maekawa
- Department of Surgery, Juntendo Shizuoka Hospital, Juntendo University School of Medicine, Shizuoka, Japan
| | - Mutsumi Sakurada
- Department of Surgery, Juntendo Shizuoka Hospital, Juntendo University School of Medicine, Shizuoka, Japan
| | - Hajime Orita
- Department of Surgery, Juntendo Shizuoka Hospital, Juntendo University School of Medicine, Shizuoka, Japan
| | - Kazunori Shimada
- Department of Cardiovascular Medicine, Juntendo University School of Medicine, Tokyo, Japan
| | - Hiroyuki Daida
- Department of Cardiovascular Medicine, Juntendo University School of Medicine, Tokyo, Japan
| | - Ryo Wada
- Department of Pathology, Juntendo Shizuoka Hospital, Juntendo University School of Medicine, Shizuoka, Japan
| | - Masaaki Abe
- Department of Pathology and Oncology, Juntendo University School of Medicine, Tokyo, Japan
| | - Okio Hino
- Department of Pathology and Oncology, Juntendo University School of Medicine, Tokyo, Japan
| | - Yoshiaki Kajiyama
- Department of Esophageal and Gastroenterological Surgery, Juntendo University School of Medicine, Tokyo, Japan
| |
Collapse
|
23
|
Fatty acid synthase overexpression in adult testicular germ cell tumors: potential role in the progression of non-seminomatous germ cell tumors. Virchows Arch 2013; 464:221-8. [PMID: 24337182 DOI: 10.1007/s00428-013-1525-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2013] [Revised: 11/09/2013] [Accepted: 12/03/2013] [Indexed: 10/25/2022]
Abstract
Overexpression of fatty acid synthase (FASN), which is a key enzyme responsible for the endogenous synthesis of fatty acids, and its association with multistep progression have been demonstrated in various human malignant tumors. We aimed to clarify the potential role of FASN overexpression in the development and progression of adult testicular germ cell tumors (TGCTs). From the primary sites of a cohort of 113 TGCT cases, we obtained 221 histological components: 53 intratubular germ cell neoplasias, unclassified (IGCNUs), 84 seminomas, 32 embryonal carcinomas, seven choriocarcinomas, 21 yolk sac tumors, and 24 teratomas. Samples were analyzed for overexpression of FASN by immunohistochemistry. Intensities of immunoreactivity and the fraction of positive cells were classified into each four categories (intensity, 0 to 3; fraction, 0-10 % = 1, 11-50 % = 2, 51-80 % = 3, and >80 % = 4). The overall score was determined by multiplication of both scores and overall scores greater than 6 were considered FASN overexpression. On a component basis, FASN overexpression was detected in 8 % of seminomas but not in IGCNUs (0 %) and was detected frequently in non-seminomatous germ cell tumors (NSGCTs) (88 % of embryonal carcinomas, all choriocarcinomas, 81 % of yolk sac tumors, and 54 % of teratomas). There were no cases of a mixed tumor (i.e., a tumor with multiple histological components) that overexpressed FASN in seminoma components but not in co-existing NSGCT components, suggesting sequential progression. Our immunohistochemical data suggest that FASN overexpression occurs as a late event during the progression from IGCNUs/seminomas to NSGCTs.
Collapse
|
24
|
Bansal N, Gupta A, Mitash N, Shakya PS, Mandhani A, Mahdi AA, Sankhwar SN, Mandal SK. Low- and high-grade bladder cancer determination via human serum-based metabolomics approach. J Proteome Res 2013; 12:5839-50. [PMID: 24219689 DOI: 10.1021/pr400859w] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
To address the shortcomings of urine cytology and cystoscopy for probing and grading urinary bladder cancer (BC), we applied (1)H nuclear magnetic resonance (NMR) spectroscopy as a surrogate method for the identification of BC. This study includes 99 serum samples comprising low-grade (LG; n = 36) and high-grade (HG; n = 31) BC as well as healthy controls (HC; n = 32). (1)H NMR-derived serum data were analyzed using orthogonal partial least-squares discriminant analysis (OPLS-DA). OPLS-DA-derived model validity was confirmed using an internal and external cross-validation. Internal validation was performed using the initial samples (n = 99) data set. External validation was performed on a new batch of suspected BC patients (n = 106) through a double-blind study. Receiver operating characteristic (ROC) curve analysis was also performed. OPLS-DA-derived serum metabolomics (six biomarkers, ROC; 0.99) were able to discriminate 95% of BC cases with 96% sensitivity and 94% specificity when compared to HC. Likewise (three biomarkers, ROC; 0.99), 98% of cases of LG were able to differentiate from HG with 97% sensitivity and 99% specificity. External validation reveals comparable results to the internal validation. (1)H NMR-based serum metabolic screening appears to be a promising and less invasive approach for probing and grading BC in contrast to the highly invasive and painful cystoscopic approach for BC detection.
Collapse
Affiliation(s)
- Navneeta Bansal
- Department of Urology, King George's Medical University , Lucknow 226003, India
| | | | | | | | | | | | | | | |
Collapse
|
25
|
Wu S, Ju GQ, Du T, Zhu YJ, Liu GH. Microvesicles derived from human umbilical cord Wharton's jelly mesenchymal stem cells attenuate bladder tumor cell growth in vitro and in vivo. PLoS One 2013; 8:e61366. [PMID: 23593475 PMCID: PMC3625149 DOI: 10.1371/journal.pone.0061366] [Citation(s) in RCA: 169] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2012] [Accepted: 03/07/2013] [Indexed: 12/29/2022] Open
Abstract
Several studies suggest that mesenchymal stem cells (MSCs) possess antitumor properties; however, the exact mechanisms remain unclear. Recently, microvesicles (MVs) are considered as a novel avenue intercellular communication, which may be a mediator in MSCs-related antitumor effect. In the present study, we evaluated whether MVs derived from human umbilical cord Wharton's jelly mesenchymal stem cells (hWJMSCs) may inhibit bladder tumor T24 cells growth using cell culture and the BALB/c nu/nu mice xenograft model. CCK-8 assay and Ki-67 immunostaining were performed to estimate cell proliferation in vitro and in vivo. Flow cytometry and TUNEL assay were used to assess cell cycle and apoptosis. To study the conceivable mechanism by which hWJMSC-MVs attenuate bladder tumor T24 cells, we estimated the expression of Akt/p-Akt, p-p53, p21 and cleaved Caspase 3 by Western blot technique after exposing T24 cells to hWJMSC-MVs for 24, 48 and 72h. Our data indicated that hWJMSC-MVs can inhibit T24 cells proliferative viability via cell cycle arrest and induce apoptosis in T24 cells in vitro and in vivo. This study showed that hWJMSC-MVs down-regulated phosphorylation of Akt protein kinase and up-regulated cleaved Caspase 3 during the process of anti-proliferation and pro-apoptosis in T24 cells. These results demonstrate that hWJMSC-MVs play a vital role in hWJMSC-induced antitumor effect and may be a novel tool for cancer therapy as a new mechanism of cell-to-cell communication.
Collapse
Affiliation(s)
- Shuai Wu
- Department of Urology, Shanghai First People’s Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
- Department of Urology, Qingdao Municipal Hospital, Qingdao, Shandong, China
| | - Guan-Qun Ju
- Department of Urology, Shanghai First People’s Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Tao Du
- Department of Urology, Shanghai First People’s Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Ying-Jian Zhu
- Department of Urology, Shanghai First People’s Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
- * E-mail: (YJZ); (GHL)
| | - Guo-Hua Liu
- Department of Urology, Shanghai First People’s Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
- * E-mail: (YJZ); (GHL)
| |
Collapse
|
26
|
Kao YC, Lee SW, Lin LC, Chen LT, Hsing CH, Hsu HP, Huang HY, Shiue YL, Chen TJ, Li CF. Fatty acid synthase overexpression confers an independent prognosticator and associates with radiation resistance in nasopharyngeal carcinoma. Tumour Biol 2012. [PMID: 23208675 DOI: 10.1007/s13277-012-0605-y] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Fatty acid synthase (FASN) is overexpressed in many human cancers and associated with poor prognosis. However, the role of FASN in nasopharyngeal carcinoma (NPC) has not been studied. We evaluated the expression of FASN immunohistochemically in 124 NPC specimens, stratified them into two groups (FASN-high and FASN-low), and examined the correlation with various clinicopathological parameters. In two NPC cell lines, HONE1 and TW01, we targeted the FASN transcript by shRNAi and evaluated the effect on cell proliferation by WST-1 assay and radiation-induced apoptosis by measuring caspase-3 and caspase-7 activation. NPC with high FASN immunoexpression was correlated with advanced pT disease status and worse prognosis in terms of disease-specific survival, metastasis-free survival and local recurrence-free survival, compared to FASN-low group in both univariate and multivariate analyses. In the two NPC cell lines, endogenous FASN expression was significantly higher than the non-tumor keratinocyte, DOK. When the expression of FASN was suppressed by shRNAi, the tumor cells showed decreased cell proliferation and increased apoptosis after radiation. Our results supported FASN as an adverse prognostic marker in NPC, possibly by conferring cell growth advantage and resistance to radiation-induced apoptosis on tumor cells. The inhibition of FASN expression might be investigated as an adjunct in treatment, especially in radiation resistant NPC.
Collapse
Affiliation(s)
- Yu-Chien Kao
- Department of Pathology, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan
| | | | | | | | | | | | | | | | | | | |
Collapse
|
27
|
Li N, Bu X, Tian X, Wu P, Yang L, Huang P. Fatty acid synthase regulates proliferation and migration of colorectal cancer cells via HER2-PI3K/Akt signaling pathway. Nutr Cancer 2012; 64:864-70. [PMID: 22860766 DOI: 10.1080/01635581.2012.701704] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Recent evidence suggests that fatty acid synthase mediating de novo fatty acid synthesis plays a crucial role in the carcinogenesis process of various cancers. Moreover, HER2 and related PI3K/Akt signaling pathway, which links intimately with cellular metabolism, influence cancer biological behavior. However, it remains unknown whether malignant phenotype of colorectal cancer cells is regulated by the HER2-PI3K/Akt-FASN signaling pathway. In this study, Caco-2 cells were selected for functional characterization, and treated with ZSTK474, followed by RT-qPCR and Western blot assays examining PI3K, Akt, HER2, and FASN expression. The MTT and colony formation assays were used to assess proliferation. The migration was investigated by transwell, apoptosis, and cell-cycle analysis. We found that the blockade of PI3K/Akt signaling pathway by ZSTK474 treatment led to downregulation of PI3K, Akt, HER2, and FASN expression. The proliferation was decreased upon treatment which was consistent with an increased percentage of G(1) arrested cells instead of apoptosis. The migration of Caco-2 cells was also impaired by ZSTK474 treatment. Inhibition of HER2-PI3K/Akt signaling pathway suppresses FASN expression of Caco-2 cells, and inhibition of FASN expression changes malignant phenotype of Caco-2 cells.
Collapse
Affiliation(s)
- Nan Li
- Department of Internal Medicine, School of Medicine, Southeast University, Nanjing, Jiangsu Province, China
| | | | | | | | | | | |
Collapse
|
28
|
Kim J, Kim WJ, Liu Z, Loda M, Freeman MR. The ubiquitin-specific protease USP2a enhances tumor progression by targeting cyclin A1 in bladder cancer. Cell Cycle 2012; 11:1123-30. [PMID: 22370483 DOI: 10.4161/cc.11.6.19550] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
The deubiquitinating enzyme USP2a has shown oncogenic properties in many cancer types by impairing ubiquitination of FASN, MDM2, MDMX or Aurora A. Aberrant expression of USP2a has been linked to progression of human tumors, particularly prostate cancer. However, little is known about the role of USP2a or its mechanism of action in bladder cancer. Here, we provide evidence that USP2a is an oncoprotein in bladder cancer cells. Enforced expression of USP2a caused enhanced proliferation, invasion, migration and resistance to several chemotherapeutic reagents, while USP2a loss resulted in slower proliferation, greater chemosensitivity and reduced migratory/invasive capability compared with control cells. USP2a, but not a catalytically inactive mutant, enhanced proliferation in immortalized TRT-HU1 normal human bladder epithelial cells. USP2a bound to cyclin A1 and prevented cyclin A1 ubiquitination, leading to accumulation of cyclin A1 by a block in degradation. Enforced expression of wild type USP2a, but not an inactive USP2a mutant, resulted in cyclin A1 accumulation and increased cell proliferation. We conclude that USP2a impairs ubiquitination and stabilizes an important cell cycle regulator, cyclin A1, raising the possibility of USP2a targeting as a therapeutic strategy against bladder tumors in combination with chemotherapy.
Collapse
Affiliation(s)
- Jayoung Kim
- Division of Cancer Biology and Therapeutics, Departments of Surgery and Biomedical Sciences, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA.
| | | | | | | | | |
Collapse
|