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Effect of WW Domain-Containing Oxidoreductase Gene Polymorphism on Clinicopathological Characteristics of Patients with EGFR Mutant Lung Adenocarcinoma in Taiwan. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph182413136. [PMID: 34948746 PMCID: PMC8701001 DOI: 10.3390/ijerph182413136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 12/09/2021] [Accepted: 12/11/2021] [Indexed: 11/28/2022]
Abstract
Lung adenocarcinoma is the most common histological type of non-small cell lung cancer, which accounts for the majority of lung cancers. Previous studies have showed that dysregulation of WW domain-containing oxidoreductase (WWOX) participates in the generation of several cancer types, including lung cancer. However, whether these WWOX polymorphisms are related to the clinical risk of epidermal growth factor receptor (EGFR)-mutated lung adenocarcinoma is worthy of investigation. The present study examined the relationship between the WWOX single-nucleotide polymorphisms (SNPs; rs11545028, rs12918952, rs3764340, rs73569323, and rs383362) and the clinicopathological factors in lung adenocarcinoma patients with or without EGFR mutations. We found that there was no significant difference in the genotype distribution of WWOX polymorphism between EGFR wild-type and EGFR mutant in patients with lung adenocarcinoma. Our results demonstrated that the presence of at least one G genotype (CG and GG) allele on WWOX rs3764340 was associated with a significantly higher risk of nearby lymph node involvement in those patients harboring EGFR mutations (odds ratio (OR) = 3.881, p = 0.010) compared with the CC genotype. Furthermore, in the subgroup of lung adenocarcinoma patients with the EGFR-L858R mutation, both WWOX rs3764340 C/G (OR = 5.209, p = 0.023) and rs73569323 C/T polymorphisms (OR = 3.886, p = 0.039) exhibited significant associations with the size of primary tumors and the invasion of adjacent tissues. In conclusion, these data indicate that WWOX SNPs may help predict tumor growth and invasion in patients with EGFR mutant lung adenocarcinoma, especially those with the EGFR-L858R mutant in Taiwan.
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Srivastava S, Shahi UP, Divya A, Gupta S, Singh I, Roy JK. Downregulated Expression of WWOX in Cervical Carcinoma: A Case-Control Study. INTERNATIONAL JOURNAL OF MOLECULAR AND CELLULAR MEDICINE 2021; 9:273-288. [PMID: 33688485 PMCID: PMC7936073 DOI: 10.22088/ijmcm.bums.9.4.273] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Accepted: 11/29/2020] [Indexed: 12/02/2022]
Abstract
Integration of human papilloma virus (HPV) in human genome is a random event, and fragile sites are one of the most susceptible sites for viral integrations. WWOX (WW-domain containing oxidoreductase) gene harbours the second most common fragile site, FRA16D, and can be an important candidate for HPV integration and cervical carcinogenesis. Our aim was to evaluate the potential role of WWOX in cervical carcinogenesis. Presence of HPV and its genotype was detected by PCR in normal cervix tissues and human cervical carcinoma. The expression of WWOX transcript and its protein was examined by RT-PCR, RNA in situ hybridization, and immunoblotting. Southern blotting and sequencing were used to determine the alternative transcripts of WWOX. Statistical analysis were performed by Mann Whitney U-test, Pearson correlation coefficient test at significance level of P value < 0.05. Prevalence of HPV was observed in cervicitis (40%), cervical intraepithelial neoplasia patients (50%), and invasive cervical carcinoma patients (89.6%). Clinicopathological findings suggested a correlation of reduced level of WWOX protein and progression of cervical carcinoma deciphering its role in tumorigenesis. Furthermore, we observed aberrant WWOX transcript having deleted exon 6-8 region in invasive cervical cancer tissues as well as normal cervix samples. More than 60% of cervical carcinoma samples showed reduced protein level with an increase in wild type transcript level suggesting the involvement of a negative regulator, pAck1 (activated Cdc42- associated kinase) which might ubiquitinate WWOX protein leading to its degradation. Also, nuclear retention of WWOX transcript in invasive cervical carcinoma tissues suggests its regulation at post-transcriptional level. Our findings suggest that WWOX acts as a tumor suppressor in cervical carcinoma and could act as a potential therapeutic target for the disease.
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Affiliation(s)
- Shikha Srivastava
- Cytogenetics Laboratory, Department of Zoology, Banaras Hindu University, Varanasi, India
| | - Uday Pratap Shahi
- Department of Radiotherapy and Radiation Medicine, Institute of Medical Sciences, Banaras Hindu University, Varanasi, India
| | - Arti Divya
- Indian Railways Cancer Institute and Research Centre, Varanasi, India
| | - Sadhana Gupta
- Department of Obstetrics and Gynaecology, Institute of Medical Sciences, Banaras Hindu University, Varanasi, India
| | - Indu Singh
- Apollo Clinic, Mehmoorganj, Varanasi, India
| | - Jagat Kumar Roy
- Cytogenetics Laboratory, Department of Zoology, Banaras Hindu University, Varanasi, India
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Khawaled S, Nigita G, Distefano R, Oster S, Suh SS, Smith Y, Khalaileh A, Peng Y, Croce CM, Geiger T, Seewaldt VL, Aqeilan RI. Pleiotropic tumor suppressor functions of WWOX antagonize metastasis. Signal Transduct Target Ther 2020; 5:43. [PMID: 32300104 PMCID: PMC7162874 DOI: 10.1038/s41392-020-0136-8] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Revised: 02/04/2020] [Accepted: 02/10/2020] [Indexed: 02/05/2023] Open
Abstract
Tumor progression and metastasis are the major causes of death among cancer associated mortality. Metastatic cells acquire features of migration and invasion and usually undergo epithelia-mesenchymal transition (EMT). Acquirement of these various hallmarks rely on different cellular pathways, including TGF-β and Wnt signaling. Recently, we reported that WW domain-containing oxidoreductase (WWOX) acts as a tumor suppressor and has anti-metastatic activities involving regulation of several key microRNAs (miRNAs) in triple-negative breast cancer (TNBC). Here, we report that WWOX restoration in highly metastatic MDA-MB435S cancer cells alters mRNA expression profiles; further, WWOX interacts with various proteins to exert its tumor suppressor function. Careful alignment and analysis of gene and miRNA expression in these cells revealed profound changes in cellular pathways mediating adhesion, invasion and motility. We further demonstrate that WWOX, through regulation of miR-146a levels, regulates SMAD3, which is a member of the TGF-β signaling pathway. Moreover, proteomic analysis of WWOX partners revealed regulation of the Wnt-signaling activation through physical interaction with Disheveled. Altogether, these findings underscore a significant role for WWOX in antagonizing metastasis, further highlighting its role and therapeutic potential in suppressing tumor progression.
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Affiliation(s)
- Saleh Khawaled
- Lautenberg Center for Immunology and Cancer Research, Hebrew University-Hadassah Medical School, IMRIC, Jerusalem, Israel
| | - Giovanni Nigita
- Department of Cancer Biology and Genetics, Wexner Medical Center, The Ohio State University, Columbus, OH, USA
| | - Rosario Distefano
- Department of Cancer Biology and Genetics, Wexner Medical Center, The Ohio State University, Columbus, OH, USA
| | - Sara Oster
- Lautenberg Center for Immunology and Cancer Research, Hebrew University-Hadassah Medical School, IMRIC, Jerusalem, Israel
| | - Sung-Suk Suh
- Department of Bioscience, Mokpo National University, Muan, Republic of Korea
| | - Yoav Smith
- Genomic Data Analysis Unit, Hebrew University-Hadassah Medical School, Jerusalem, Israel
| | - Abed Khalaileh
- Department of Surgery, Hadassah Medical Center, Jerusalem, Israel
| | - Yong Peng
- Department of Thoracic Surgery, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy, 610041, Chengdu, China
| | - Carlo M Croce
- Department of Cancer Biology and Genetics, Wexner Medical Center, The Ohio State University, Columbus, OH, USA
| | - Tamar Geiger
- Department of Human Molecular Genetics and Biochemistry, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Victoria L Seewaldt
- Department of Population Sciences, City of Hope Comprehensive Cancer Center, Duarte, CA, USA
| | - Rami I Aqeilan
- Lautenberg Center for Immunology and Cancer Research, Hebrew University-Hadassah Medical School, IMRIC, Jerusalem, Israel. .,Department of Cancer Biology and Genetics, Wexner Medical Center, The Ohio State University, Columbus, OH, USA.
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4
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Sarkar S, Alam N, Mandal SS, Chatterjee K, Ghosh S, Roychoudhury S, Panda CK. Differential transmission of the molecular signature of RBSP3, LIMD1 and CDC25A in basal/ parabasal versus spinous of normal epithelium during head and neck tumorigenesis: A mechanistic study. PLoS One 2018; 13:e0195937. [PMID: 29672635 PMCID: PMC5909606 DOI: 10.1371/journal.pone.0195937] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Accepted: 04/03/2018] [Indexed: 12/16/2022] Open
Abstract
Head and neck squamous cell carcinoma (HNSCC) is a global disease and mortality burden, necessitating the elucidation of its molecular progression for effective disease management. The study aims to understand the molecular profile of three candidate cell cycle regulatory genes, RBSP3, LIMD1 and CDC25A in the basal/ parabasal versus spinous layer of normal oral epithelium and during head and neck tumorigenesis. Immunohistochemical expression and promoter methylation was used to determine the molecular signature in normal oral epithelium. The mechanism of alteration transmission of this profile during tumorigenesis was then explored through additional deletion and mutation in HPV/ tobacco etiological groups, followed byclinico-pathological correlation. In basal/parabasal layer, the molecular signature of the genes was low protein expression/ high promoter methylation of RBSP3, high expression/ low methylation of LIMD1 and high expression of CDC25A. Dysplastic epithelium maintained the signature of RBSP3 through high methylation/ additional deletion with loss of the signatures of LIMD1 and CDC25A via deletion/ additional methylation. Similarly, maintenance and / or loss of signature in invasive tumors was by recurrent deletion/ methylation. Thus, differential patterns of alteration of the genes might be pre-requisite for the development of dysplastic and invasive lesions. Etiological factors played a key role in promoting genetic alterations and determining prognosis. Tobacco negative HNSCC patients had significantly lower alterations of LIMD1 and CDC25A, along with better survival among tobacco negative/ HPV positive patients. Our data suggests the necessity for perturbation of normal molecular profile of RBSP3, LIMD1 and CDC25A in conjunction with etiological factors for head and neck tumorigenesis, implying their diagnostic and prognostic significance.
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Affiliation(s)
- Shreya Sarkar
- Department of Oncogene Regulation, Chittaranjan National Cancer Institute, Kolkata, India
| | - Neyaz Alam
- Department of Surgical Oncology, Chittaranjan National Cancer Institute, Kolkata, India
| | - Syam Sundar Mandal
- Department of Epidemiology and Biostatistics, Chittaranjan National Cancer Institute, Kolkata, India
| | - Kabita Chatterjee
- Department of Oral and Maxillofacial Pathology, Buddha Institute of Dental Sciences and Hospital, Patna, India
| | - Supratim Ghosh
- Department of Oral and Maxillofacial Pathology, Burdwan Dental College and Hospital, Burdwan, India
| | - Susanta Roychoudhury
- Basic Research, Saroj Gupta Cancer Centre and Research Institute, Kolkata, India
| | - Chinmay Kumar Panda
- Department of Oncogene Regulation, Chittaranjan National Cancer Institute, Kolkata, India
- * E-mail:
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5
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Yuan H, Wu Y, Zhang J, Shi G, Liu D, He Y, Lu Z, Wu P, Jiang K, Miao Y. Association between WWOX and the risk of malignant tumor, especially among Asians: evidence from a meta-analysis. Onco Targets Ther 2018; 11:1801-1811. [PMID: 29662317 PMCID: PMC5892619 DOI: 10.2147/ott.s152140] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Purpose Many studies have been carried out to examine whether there are associations between WWOX polymorphisms (rs3764340 C>G, rs12918952 G>A, and rs383362 G>T) and malignant tumor risk, but the results from these studies remained inconsistent and even controversial. In the present study, we performed a meta-analysis to evaluate the relationships comprehensively. Methods Published reports were searched in PubMed, Google Scholar, and Chinese National Knowledge Infrastructure databases. Eight eligible case–control studies were included in the final analysis. In the analysis, pooled odds ratios (ORs) with corresponding 95% CIs were calculated in five genetic models to assess the genetic risk. Egger’s regression and Begg’s funnel plots test were conducted to appraise the publication bias. Results We found that rs12918952 G>A and rs383362 G>T polymorphisms were not associated with the susceptibility of malignant tumor. However, a significant correlation was found between WWOX rs3764340 C>G and malignant tumor risk in three genetic models (CG vs CC: OR=1.31, 95% CI: 1.12–1.53, P=0.031; GG/CG vs CC: OR=1.31, 95% CI: 1.11–1.54, P=0.014; G vs C: OR=1.28, 95% CI: 1.09–1.50, P=0.009). Furthermore, when stratified by source of control, the results were significant especially in population-based control for rs3764340. Conclusion In general, our results first indicated that the rs3764340 C>G polymorphism in WWOX gene can increase the susceptibility of tumor, while the others cannot. However, large, well-designed epidemiological studies are required to verify our findings.
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Affiliation(s)
- Hao Yuan
- Pancreas Center, Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University.,Pancreas Institute, Nanjing Medical University, Nanjing, People's Republic of China
| | - Yang Wu
- Pancreas Center, Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University.,Pancreas Institute, Nanjing Medical University, Nanjing, People's Republic of China
| | - Jingjing Zhang
- Pancreas Center, Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University.,Pancreas Institute, Nanjing Medical University, Nanjing, People's Republic of China
| | - Guodong Shi
- Pancreas Center, Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University.,Pancreas Institute, Nanjing Medical University, Nanjing, People's Republic of China
| | - Dongfang Liu
- Pancreas Center, Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University.,Pancreas Institute, Nanjing Medical University, Nanjing, People's Republic of China
| | - Yuan He
- Pancreas Center, Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University.,Pancreas Institute, Nanjing Medical University, Nanjing, People's Republic of China
| | - Zipeng Lu
- Pancreas Center, Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University.,Pancreas Institute, Nanjing Medical University, Nanjing, People's Republic of China
| | - Pengfei Wu
- Pancreas Center, Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University.,Pancreas Institute, Nanjing Medical University, Nanjing, People's Republic of China
| | - Kuirong Jiang
- Pancreas Center, Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University.,Pancreas Institute, Nanjing Medical University, Nanjing, People's Republic of China
| | - Yi Miao
- Pancreas Center, Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University.,Pancreas Institute, Nanjing Medical University, Nanjing, People's Republic of China
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Cheng HL, Liu YF, Su CW, Su SC, Chen MK, Yang SF, Lin CW. Functional genetic variant in the Kozak sequence of WW domain-containing oxidoreductase (WWOX) gene is associated with oral cancer risk. Oncotarget 2018; 7:69384-69396. [PMID: 27655721 PMCID: PMC5342485 DOI: 10.18632/oncotarget.12082] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Accepted: 09/10/2016] [Indexed: 12/11/2022] Open
Abstract
In Taiwan, oral cancer is the fourth leading cancer in males and is associated with exposure to environmental carcinogens. WW domain-containing oxidoreductase (WWOX), a tumor suppressor gene, is associated with the development of various cancers. We hypothesized that genetic variants of WWOX influence the susceptibility to oral cancer. Five polymorphisms of WWOX gene from 761 male patients with oral cancer and 1199 male cancer-free individuals were genotyped. We observed that individuals carrying the polymorphic allele of WWOX rs11545028 are more susceptible to oral cancer. Furthermore, patients with advanced-stage oral cancer were associated with a higher frequency of WWOX rs11545028 polymorphisms with the variant genotype TT than did patients with the wild-type gene. An additional integrated in silico analysis confirmed that rs11545028 affects WWOX expression, which significantly correlates with tumor expression and subsequently with tumor development and aggressiveness. In conclusion, genetic variants of WWOX contribute to the occurrence of oral cancer, and the findings regarding these biomarkers provided a prediction model for risk assessment.
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Affiliation(s)
- Hsin-Lin Cheng
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan
| | - Yu-Fan Liu
- Department of Biomedical Sciences, Chung Shan Medical University, Taichung, Taiwan
| | - Chun-Wen Su
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan
| | - Shih-Chi Su
- Whole-Genome Research Core Laboratory of Human Diseases, Chang Gung Memorial Hospital, Keelung, Taiwan
| | - Mu-Kuan Chen
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan.,Department of Otorhinolaryngology-Head and Neck Surgery, Changhua Christian Hospital, Changhua, Taiwan
| | - Shun-Fa Yang
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan.,Department of Medical Research, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Chiao-Wen Lin
- Institute of Oral Sciences, Chung Shan Medical University, Taichung, Taiwan.,Department of Dentistry, Chung Shan Medical University Hospital, Taichung, Taiwan
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7
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Huang SS, Chang NS. Phosphorylation/de-phosphorylation in specific sites of tumor suppressor WWOX and control of distinct biological events. Exp Biol Med (Maywood) 2018; 243:137-147. [PMID: 29310447 DOI: 10.1177/1535370217752350] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Abnormal differentiation and growth of hematopoietic stem cells cause the development of hematopoietic diseases and hematopoietic malignancies. However, the molecular events underlying leukemia development are not well understood. In our recent study, we have demonstrated that calcium ionophore and phorbol ester force the differentiation of T lymphoblastic leukemia. The event involves a newly identified IκBα/WWOX/ERK signaling, in which WWOX is Ser14 phosphorylated. Additional evidence also reveals that pS14-WWOX is involved in enhancing cancer progression and metastasis and facilitating neurodegeneration. In this mini-review, we update the current knowledge for the functional roles of WWOX under physiological and pathological settings, and provide new insights regarding pS14-WWOX in T leukemia cell maturation, and switching the anticancer pY33-WWOX to pS14-WWOX for cancer promotion and disease progression. Impact statement WWOX was originally designated as a tumor suppressor. However, human newborns deficient in WWOX do not spontaneously develop tumors. Activated WWOX with Tyr33 phosphorylation is present in normal tissues and organs. However, when pY33-WWOX is overly induced under stress conditions, it becomes apoptotic to eliminate damaged cells. Notably, WWOX with Ser14 phosphorylation is upregulated in the lesions of cancer, as well as in the brain hippocampus and cortex with Alzheimer's disease. Suppression of pS14-WWOX by Zfra reduces cancer growth and mitigates Alzheimer's disease progression, suggesting that pS14-WWOX facilitates disease progression. pS14-WWOX can be regarded as a marker of disease progression.
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Affiliation(s)
- Shenq-Shyang Huang
- 1 Institute of Molecular Medicine, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan, ROC.,2 Graduate Program of Biotechnology in Medicine, Institute of Molecular and Cellular Biology, National Tsing Hua University, Hsinchu 30013, Taiwan, ROC
| | - Nan-Shan Chang
- 1 Institute of Molecular Medicine, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan, ROC.,3 Department of Neurochemistry, New York State Institute for Basic Research in Developmental Disabilities, Staten Island, NY 10314, USA.,4 Graduate Institute of Biomedical Sciences, College of Medicine, China Medical University, Taichung 40402, Taiwan, ROC
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8
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Bunai K, Okubo H, Hano K, Inoue K, Kito Y, Saigo C, Shibata T, Takeuchi T. TMEM207 hinders the tumour suppressor function of WWOX in oral squamous cell carcinoma. J Cell Mol Med 2017; 22:1026-1033. [PMID: 29164763 PMCID: PMC5783854 DOI: 10.1111/jcmm.13456] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Accepted: 10/15/2017] [Indexed: 01/21/2023] Open
Abstract
The WW domain‐containing oxidoreductase (WWOX) functions as a tumour suppressor in oral carcinogenesis. As aberrant TMEM207 expression may lead to tumour progression by hampering the tumour suppressor function of WWOX in various cancers, we explored the expression and pathobiological properties of TMEM207, focusing on the WWOX‐mediated regulation of the HIF‐1α pathway in oral squamous cell carcinoma (OSCC). TMEM207 immunoreactivity was detected in 40 of 90 OSCC samples but not in neighbouring non‐tumorous epithelial tissues. Moreover, TMEM207 expression was significantly correlated with lymph node metastasis and poor prognosis. An in situ proximal ligation assay demonstrated the colocalization of TMEM207 and WWOX in invasive OSCC cells, especially glycogen‐rich ones. Enforced expression of TMEM207 abrogated the binding of WWOX to HIF‐1α, increased HIF‐1α and GLUT‐1 expression, even under normoxic conditions, and promoted tumour growth in a xenoplant assay using SAS tongue squamous cancer cells. In contrast, TMEM207 knockdown decreased GLUT‐1 expression in two OSCC cell lines. As a whole, our findings indicate that the aberrant expression of TMEM207 contributes to tumour progression in OSCC, possibly via promoting aerobic glycolysis.
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Affiliation(s)
- Katsuaki Bunai
- Department of Oral and Maxillofacial Surgery, Gifu University Graduate School of Medicine, Yanagido, Gifu, Japan
| | - Hiroshi Okubo
- Department of Pathology and Translational Research, Gifu University Graduate School of Medicine, Yanagido, Gifu, Japan
| | - Kimika Hano
- Department of Oral and Maxillofacial Surgery, Gifu University Graduate School of Medicine, Yanagido, Gifu, Japan
| | - Keisuke Inoue
- Department of Oral and Maxillofacial Surgery, Gifu University Graduate School of Medicine, Yanagido, Gifu, Japan
| | - Yusuke Kito
- Department of Pathology and Translational Research, Gifu University Graduate School of Medicine, Yanagido, Gifu, Japan
| | - Chiemi Saigo
- Department of Pathology and Translational Research, Gifu University Graduate School of Medicine, Yanagido, Gifu, Japan
| | - Toshiyuki Shibata
- Department of Oral and Maxillofacial Surgery, Gifu University Graduate School of Medicine, Yanagido, Gifu, Japan
| | - Tamotsu Takeuchi
- Department of Pathology and Translational Research, Gifu University Graduate School of Medicine, Yanagido, Gifu, Japan
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Lin WR, Hsu CW, Yeh CSH, Chen YC, Chang ML, Liang KH, Lin CC, Chu YD, Yeh CT. Combinations of single nucleotide polymorphisms WWOX-rs13338697, GALNT14-rs9679162 and rs6025211 effectively stratify outcomes of chemotherapy in advanced hepatocellular carcinoma. Asia Pac J Clin Oncol 2017; 14:e54-e63. [PMID: 28695683 DOI: 10.1111/ajco.12745] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Accepted: 05/23/2017] [Indexed: 12/24/2022]
Abstract
AIM A genome-wide association study (GWAS) had identified a single nucleotide polymorphism (SNP), GALNT14-rs9679162, capable of predicting chemotherapy responses in advanced hepatocellular carcinoma (HCC). Here, we revisited the GWAS database to search for necessary SNPs that could improve our outcome prediction. METHODS A cohort of 116 HCC patients receiving split-dose chemotherapy composed of 5-fluorouracil, mitoxantrone and cisplatin was enrolled. The GALNT14-rs9679162 together with four other leading candidate SNPs (rs6025211, rs715171, LOC105369482-rs1955024 and WWOX-rs13338697) was genotyped and correlated with time-to-tumor progression (TTP) and overall survival (OS). RESULTS GALNT14-rs9679162-TT genotype remained an effective predictor for favorable TTP and OS (P = 0.012 and 0.002). Additionally, it was found that WWOX-rs13338697-CT genotype was associated with unfavorable TTP (P = 0.031), independent of GALNT14-rs9679162 genotype (adjusted P = 0.045), and rs6025211-CT genotype was associated with unfavorable OS (P = 0.014), independent of GALNT14-rs9679162 genotype (adjusted P = 0.025). Combinations of these SNPs stratified patients into three groups with differential treatment outcomes. Patients with GALNT14-rs9679162-TT/WWOX-rs13338697-non-CT genotypes achieved the most favorable treatment outcomes (n = 19; median TTP, median OS and response rate were 3.9 months, 6.8 months and 4/19 [21.1%], respectively); whereas patients with GALNT14-rs9679162-non-TT/rs6025211-CT genotypes associated with the most unfavorable treatment outcomes (n = 40; median TTP, median OS and response rate were 1.9 months, 3.5 months and 1/40 [2.5%], respectively). The remaining patients constituted a third subgroup with intermediate clinical outcomes. CONCLUSIONS Three genetic variants, GALNT14-rs9679162, WWOX-rs13338697 and rs6025211, stratified advanced HCC patients into three groups with differential treatment outcomes.
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Affiliation(s)
- Wey-Ran Lin
- Liver Research Center and Department of Hepato-Gastroenterology, Linkou Chang Gung Memorial Hospital, Taoyuan, Taiwan.,Chang Gung University College of Medicine, Taoyuan, Taiwan
| | - Chao-Wei Hsu
- Liver Research Center and Department of Hepato-Gastroenterology, Linkou Chang Gung Memorial Hospital, Taoyuan, Taiwan.,Chang Gung University College of Medicine, Taoyuan, Taiwan
| | - Christopher Sung-Huan Yeh
- Department of Cognitive Science, College of Letters and Science, University of California, Los Angeles, California, USA
| | - Yi-Cheng Chen
- Liver Research Center and Department of Hepato-Gastroenterology, Linkou Chang Gung Memorial Hospital, Taoyuan, Taiwan.,Chang Gung University College of Medicine, Taoyuan, Taiwan
| | - Ming-Ling Chang
- Liver Research Center and Department of Hepato-Gastroenterology, Linkou Chang Gung Memorial Hospital, Taoyuan, Taiwan.,Chang Gung University College of Medicine, Taoyuan, Taiwan
| | - Kung-Hao Liang
- Liver Research Center and Department of Hepato-Gastroenterology, Linkou Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Chen-Chun Lin
- Liver Research Center and Department of Hepato-Gastroenterology, Linkou Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Yu-De Chu
- Chang Gung University College of Medicine, Taoyuan, Taiwan
| | - Chau-Ting Yeh
- Liver Research Center and Department of Hepato-Gastroenterology, Linkou Chang Gung Memorial Hospital, Taoyuan, Taiwan.,Chang Gung University College of Medicine, Taoyuan, Taiwan
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10
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Lee HL, Cheng HL, Liu YF, Chou MC, Yang SF, Chou YE. Functional genetic variant of WW domain-containing oxidoreductase (WWOX) gene is associated with hepatocellular carcinoma risk. PLoS One 2017; 12:e0176141. [PMID: 28426730 PMCID: PMC5398630 DOI: 10.1371/journal.pone.0176141] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2017] [Accepted: 04/05/2017] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Hepatocellular carcinoma (HCC) is one of the most common malignant tumors worldwide. Human WW domain-containing oxidoreductase (WWOX) gene has been identified as a tumor suppressor gene in multiple cancers. We hypothesize that genetic variations in WWOX are associated with HCC risk. METHODOLOGY/PRINCIPAL FINDINGS Five single-nucleotide polymorphisms (SNPs) of the WWOX gene were evaluated from 708 normal controls and 354 patients with HCC. We identified a significant association between a WWOX single nucleotide polymorphism (SNP), rs73569323, and decreased risk of HCC. After adjustment for potential confounders, patients with at least one T allele at rs11545028 of WWOX may have a significantly smaller tumor size, reduced levels of α-fetoprotein and alanine aminotransferase (ALT). Moreover, the A allele at SNP rs12918952 in WWOX conferred higher risk of vascular invasion. Additional in silico analysis also suggests that WWOX rs12918952 polymorphism tends to affect WWOX expression, which in turn contributes to tumor vascular invasion. CONCLUSIONS In conclusion, genetic variations in WWOX may be a significant predictor of early HCC occurrence and a reliable biomarker for disease progression.
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Affiliation(s)
- Hsiang-Lin Lee
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan
- School of Medicine, Chung Shan Medical University, Taichung, Taiwan
- Deptartment of Surgery, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Hsin-Lin Cheng
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan
| | - Yu-Fan Liu
- Department of Biomedical Sciences, Chung Shan Medical University, Taichung, Taiwan
| | - Ming-Chih Chou
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan
- School of Medicine, Chung Shan Medical University, Taichung, Taiwan
- Deptartment of Surgery, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Shun-Fa Yang
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan
- Department of Biomedical Sciences, Chung Shan Medical University, Taichung, Taiwan
| | - Ying-Erh Chou
- School of Medicine, Chung Shan Medical University, Taichung, Taiwan
- Department of Medical Research, Chung Shan Medical University Hospital, Taichung, Taiwan
- * E-mail:
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11
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Yang W, Wang XM, Yuan HY, Liu ZH, Gao S, Peng L. Exploring the mechanism of WWOX growth inhibitory effects on oral squamous cell carcinoma. Oncol Lett 2017; 13:3198-3204. [PMID: 28521426 DOI: 10.3892/ol.2017.5850] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2015] [Accepted: 01/17/2017] [Indexed: 12/14/2022] Open
Abstract
Oral squamous cell carcinoma (OSCC) is one of the most common types of head and neck neoplasms in the world. Patients diagnosed with OSCC exhibit a poor prognosis. WW domain-containing oxidoreductase (WWOX), as a candidate tumor-suppressor gene, is involved in the genesis and progression of tumors. The deletion of the WWOX gene has been identified in OSCC and oral leukoplakia, but the function and mechanism of WWOX in OSCC remain unknown. Therefore, the present study investigated the role of WWOX in oral squamous carcinoma cells. The results revealed that an elevation of WWOX expression had an inhibitory effect on the growth of three types of oral squamous carcinoma cells, with the most evident effect occurring in Tca8113 cells. Also, in the Tca8113 cells, WWOX overexpression significantly inhibited colony formation, and induced apoptosis and cell cycle arrest. Microarray analysis, reverse transcription-quantitative polymerase chain reaction and western blotting methods detected that WWOX overexpression contributed to the differential expression of the genes involved in mediating the extracellular-signal regulated protein kinase/mitogen-activated protein kinase (ERK/MAPK) signaling pathway. These results suggest that the tumor-suppressor function of the WWOX gene may be associated with the modulation of the ERK/MAPK signaling pathway, thus providing a novel target for OSCC therapy.
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Affiliation(s)
- Wei Yang
- School of Laboratory Medicine, Beihua University, Jilin City, Jilin 132013, P.R. China
| | - Xiao-Ming Wang
- Department of Pathology, Jilin Province People's Hospital, Changchun, Jilin 132001, P.R. China
| | - Hong-Yan Yuan
- Department of Immunology, College of Basic Medical Science, Jilin University, Changchun, Jilin 132001, P.R. China
| | - Zhi-Hui Liu
- Department of Stomatology, Taizhou Municipal Hospital, Taizhou, Zhejiang 318000, P.R. China
| | - Shuang Gao
- School of Laboratory Medicine, Beihua University, Jilin City, Jilin 132013, P.R. China
| | - Liang Peng
- School of Laboratory Medicine, Beihua University, Jilin City, Jilin 132013, P.R. China
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12
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Gao K, Yin J, Dong J. Deregulated WWOX is involved in a negative feedback loop with microRNA-214-3p in osteosarcoma. Int J Mol Med 2016; 38:1850-1856. [PMID: 27840941 DOI: 10.3892/ijmm.2016.2800] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2015] [Accepted: 10/31/2016] [Indexed: 11/05/2022] Open
Abstract
WW domain-containing oxidoreductase (WWOX) is frequently inactivated in human osteosarcoma, and the restoration of its expression can suppress tumorigenicity in WWOX-negative OS cells. However, its regulatory mechanisms remain to be fully elucidated. In the present study, we demonstrate that WWOX is downregulated and that it regulates proliferation and epithelial-to-mesenchymal transition (EMT)-associated protein expression in osteosarcoma. As shown by our results, WWOX overexpression by transfection with WWOX overexpression plasmids suppressed the proliferation, migration and invasion of osteosarcoma MG63 cells (as shown by MTT and migration and invasion assays). The silencing of microRNA (miR)‑214‑3p by transfection with anti-miR‑14‑3p upregulated WWOX protein expression and also inhibited the proliferation, migration and invasion of osteosarcoma cells. Additionally, we found that WWOX negatively regulated miR‑214‑3p and miR‑10b expression. Our findings define a negative feedback pathway in control of WWOX and miR‑214‑3p expression, thus providing novel molecular targets for the treatment of osteosarcoma.
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Affiliation(s)
- Kaituo Gao
- Department of Orthopedics, Linyi People's Hospital, Linyi, Shandong 276003, P.R. China
| | - Jijuan Yin
- Department of Orthopedics, Linyi People's Hospital, Linyi, Shandong 276003, P.R. China
| | - Jian Dong
- Department of Orthopedics, Linyi People's Hospital, Linyi, Shandong 276003, P.R. China
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13
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Shi Y, Du M, Fang Y, Tong N, Zhai X, Sheng X, Li Z, Xue Y, Li J, Chu H, Chen J, Song Z, Shen J, Ji J, Li X, Hu Z, Shen H, Xu J, Wang M, Zhang Z. Identification of a novel susceptibility locus at 16q23.1 associated with childhood acute lymphoblastic leukemia in Han Chinese. Hum Mol Genet 2016; 25:2873-2880. [PMID: 27094129 DOI: 10.1093/hmg/ddw112] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2015] [Revised: 03/13/2016] [Accepted: 04/11/2016] [Indexed: 12/11/2022] Open
Abstract
Recently, genome-wide association studies (GWAS) have identified several susceptibility loci for childhood acute lymphoblastic leukemia (ALL) in populations of European descent; only a few loci could be confirmed in Asian populations because of those populations' genetic heterogeneity. To identify genetic factors associated with childhood ALL risk in the Chinese population, we performed a three-stage GWAS of 1184 childhood ALL cases and 3219 non-ALL controls. The combined analysis identified a new locus (rs1121404 in WWOX) at 16q23.1 associated with childhood ALL susceptibility (odds ratio (OR) = 1.38, P = 5.29 × 10-10), especially in the subtype of B-ALL (OR = 1.39, P = 2.47 × 10-9). The functional studies subsequently revealed that the expression of WWOX in ALL bone marrow was significantly lower than that in normal bone marrow. The G allele of rs1121404 displayed significantly decreased levels of mRNA expression of WWOX These results suggest that WWOX plays an important role in the development of childhood ALL and provide new insights into the etiology of childhood ALL.
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Affiliation(s)
- Yongyong Shi
- Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders, Ministry of Education, Shanghai Jiao Tong University, Shanghai 200030, China .,The Affiliated Hospital of Qingdao University, Qingdao 266003, China.,Institute of Social Cognitive and Behavioral Sciences, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Mulong Du
- Department of Genetic Toxicology, the Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China.,Department of Environmental Genomics, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing Medical University, Nanjing 211166, China
| | - Yongjun Fang
- Department of Hematology and Oncology, Nanjing Children's Hospital Affiliated with Nanjing Medical University, Nanjing 210000, China
| | - Na Tong
- Department of Genetic Toxicology, the Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China.,Department of Environmental Genomics, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing Medical University, Nanjing 211166, China
| | - Xiaowen Zhai
- Department of Hematology and Oncology, Children's hospital of Fudan University, Shanghai 200032, China
| | - Xiaojing Sheng
- Department of Children's healthcare, The Second Affiliated Hospital of Nanjing Medical University, Nanjing 210000, China
| | - Zhiqiang Li
- Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders, Ministry of Education, Shanghai Jiao Tong University, Shanghai 200030, China.,Institute of Social Cognitive and Behavioral Sciences, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Yao Xue
- Department of Hematology and Oncology, Nanjing Children's Hospital Affiliated with Nanjing Medical University, Nanjing 210000, China
| | - Jie Li
- Department of Hematology and Oncology, The Affiliated Children's Hospital of Soochow University, Suzhou 215025, China
| | - Haiyan Chu
- Department of Genetic Toxicology, the Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China.,Department of Environmental Genomics, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing Medical University, Nanjing 211166, China
| | - Jianhua Chen
- Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders, Ministry of Education, Shanghai Jiao Tong University, Shanghai 200030, China.,Institute of Social Cognitive and Behavioral Sciences, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Zhijian Song
- Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders, Ministry of Education, Shanghai Jiao Tong University, Shanghai 200030, China.,Institute of Social Cognitive and Behavioral Sciences, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Jiawei Shen
- Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders, Ministry of Education, Shanghai Jiao Tong University, Shanghai 200030, China.,Institute of Social Cognitive and Behavioral Sciences, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Jue Ji
- Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders, Ministry of Education, Shanghai Jiao Tong University, Shanghai 200030, China
| | - Xingwang Li
- Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders, Ministry of Education, Shanghai Jiao Tong University, Shanghai 200030, China
| | - Zhibin Hu
- Department of Epidemiology and Biostatistics, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Hongbing Shen
- Department of Epidemiology and Biostatistics, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Jianfeng Xu
- Program for Personalized Cancer Care, NorthShore University HealthSystem, Evanston, Illinois 60201, USA
| | - Meilin Wang
- Department of Genetic Toxicology, the Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China .,Department of Environmental Genomics, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing Medical University, Nanjing 211166, China
| | - Zhengdong Zhang
- Department of Genetic Toxicology, the Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China .,Department of Environmental Genomics, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing Medical University, Nanjing 211166, China
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14
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Chen T, Gao F, Feng S, Yang T, Chen M. MicroRNA-134 regulates lung cancer cell H69 growth and apoptosis by targeting WWOX gene and suppressing the ERK1/2 signaling pathway. Biochem Biophys Res Commun 2015; 464:748-54. [DOI: 10.1016/j.bbrc.2015.07.021] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Accepted: 07/03/2015] [Indexed: 12/22/2022]
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15
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Ekizoglu S, Bulut P, Karaman E, Kilic E, Buyru N. Epigenetic and genetic alterations affect the WWOX gene in head and neck squamous cell carcinoma. PLoS One 2015; 10:e0115353. [PMID: 25612104 PMCID: PMC4303423 DOI: 10.1371/journal.pone.0115353] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2014] [Accepted: 11/22/2014] [Indexed: 01/11/2023] Open
Abstract
Different types of genetic and epigenetic changes are associated with HNSCC. The molecular mechanisms of HNSCC carcinogenesis are still undergoing intensive investigation. WWOX gene expression is altered in many cancers and in a recent work reduced WWOX expression has been associated with miR-134 expression in HNSCC. In this study we investigated the WWOX messenger RNA expression levels in association with the promoter methylation of the WWOX gene and miR-134 expression levels in 80 HNSCC tumor and non-cancerous tissue samples. Our results show that WWOX expression is down-regulated especially in advanced-stage tumor samples or in tumors with SCC. This down-regulation was associated with methylation of the WWOX promoter region but not with miR-134 expression. There was an inverse correlation between the expression level and promoter methylation. We also analyzed whole exons and exon/intron boundries of the WWOX gene by direct sequencing. In our study group we observed 10 different alterations in the coding sequences and 18 different alterations in the non-coding sequences of the WWOX gene in HNSCC tumor samples. These results indicate that the WWOX gene can be functionally inactivated by promoter methylation, epigenetically or by mutations affecting the sequences coding for the enzymatic domain of the gene, functionally. We conclude that inactivation of WWOX gene contributes to the progression of HNSCC.
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Affiliation(s)
- Seda Ekizoglu
- Istanbul University, Cerrahpasa Medical Faculty, Department of Medical Biology, Istanbul, Turkey
| | - Pelin Bulut
- Istanbul University, Cerrahpasa Medical Faculty, Department of Medical Biology, Istanbul, Turkey
| | - Emin Karaman
- Istanbul University, Cerrahpasa Medical Faculty, Department of Otorhinolaryngology, Istanbul, Turkey
| | - Erkan Kilic
- Istanbul University, Cerrahpasa Medical Faculty, Department of Otorhinolaryngology, Istanbul, Turkey
| | - Nur Buyru
- Istanbul University, Cerrahpasa Medical Faculty, Department of Medical Biology, Istanbul, Turkey
- * E-mail:
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16
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Liu CJ, Shen WG, Peng SY, Cheng HW, Kao SY, Lin SC, Chang KW. miR-134induces oncogenicity and metastasis in head and neck carcinoma through targetingWWOXgene. Int J Cancer 2013; 134:811-21. [DOI: 10.1002/ijc.28358] [Citation(s) in RCA: 90] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2012] [Revised: 05/24/2013] [Accepted: 06/11/2013] [Indexed: 12/31/2022]
Affiliation(s)
- Chung-Ji Liu
- Department of Oral and Maxillofacial Surgery; Mackay Memorial Hospital; Taipei Taiwan
- Institute of Biomedical Sciences; Mackay Medical College; Taipei Taiwan
- Department of Medical Research; Mackay Memorial Hospital; Taipei Taiwan
- Institute of Oral Biology and Department of Dentistry; School of Dentistry, National Yang-Ming University; Taipei Taiwan
| | - Wilma Grace Shen
- Institute of Oral Biology and Department of Dentistry; School of Dentistry, National Yang-Ming University; Taipei Taiwan
| | - Shih-Yuan Peng
- Institute of Oral Biology and Department of Dentistry; School of Dentistry, National Yang-Ming University; Taipei Taiwan
| | - Hui-Wen Cheng
- Department of Medical Research; Mackay Memorial Hospital; Taipei Taiwan
| | - Shou-Yen Kao
- Institute of Oral Biology and Department of Dentistry; School of Dentistry, National Yang-Ming University; Taipei Taiwan
- Department of Stomatology; Taipei Veterans General Hospital; Taipei Taiwan
| | - Shu-Chun Lin
- Institute of Oral Biology and Department of Dentistry; School of Dentistry, National Yang-Ming University; Taipei Taiwan
- Department of Stomatology; Taipei Veterans General Hospital; Taipei Taiwan
| | - Kuo-Wei Chang
- Institute of Oral Biology and Department of Dentistry; School of Dentistry, National Yang-Ming University; Taipei Taiwan
- Department of Stomatology; Taipei Veterans General Hospital; Taipei Taiwan
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17
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Amaral FR, Diniz MG, Bernardes VF, Souza PEA, Gomez RS, Gomes CC. WWOX expression in giant cell lesions of the jaws. Oral Surg Oral Med Oral Pathol Oral Radiol 2013; 116:210-3. [DOI: 10.1016/j.oooo.2013.05.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2013] [Revised: 05/07/2013] [Accepted: 05/13/2013] [Indexed: 11/25/2022]
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18
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Yang L, Liu B, Huang B, Deng J, Li H, Yu B, Qiu F, Cheng M, Wang H, Yang R, Yang X, Zhou Y, Lu J. A functional copy number variation in the WWOX gene is associated with lung cancer risk in Chinese. Hum Mol Genet 2013; 22:1886-94. [DOI: 10.1093/hmg/ddt019] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
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19
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Li YP, Wu CC, Chen WT, Huang YC, Chai CY. The expression and significance of WWOX and β-catenin in hepatocellular carcinoma. APMIS 2012; 121:120-6. [PMID: 23030478 DOI: 10.1111/j.1600-0463.2012.02947.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2011] [Accepted: 06/19/2012] [Indexed: 11/28/2022]
Abstract
WW domain-containing oxidoreductase (WWOX) is a novel tumor suppressor gene, and its expression is reduced in various cancers, including hepatocellular carcinoma (HCC). WWOX has been reported to be downregulated in HCC cell lines as well as in primary HCC tissues. It has been suggested that WWOX is implicated in Wnt/β-catenin pathway, which is frequently affected in HCC. The aim of this study was to evaluate the expression of WWOX, β-catenin and T-cell factor 4 (TCF4) in HCC. Our result showed that downregulation of WWOX in HCC was correlated with cytoplasmic accumulation of β-catenin. In addition, strong nuclear TCF4 expression was associated with tumor grade and stage in HCC. In conclusion, our result implied that downregulation of WWOX might lead to accumulation of cytoplasmic β-catenin and the subsequent activation of Wnt/β-catenin signaling pathway in HCC.
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Affiliation(s)
- Yu-Pu Li
- Institute of Biomedical Sciences, National Sun Yat-sen University, Kaohsiung, Taiwan
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20
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Gomes CC, Diniz MG, Oliveira CS, Tavassoli M, Odell EW, Gomez RS, De Marco L. Impact of WWOX alterations on p73, ΔNp73, p53, cell proliferation and DNA ploidy in salivary gland neoplasms. Oral Dis 2011; 17:564-71. [PMID: 21332605 DOI: 10.1111/j.1601-0825.2011.01802.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
OBJECTIVE WWOX gene is altered in a variety of neoplasms. Wwox is pro-apoptotic through interaction with p73 and may be involved in chromosomal stability by interaction with p73 and p53. The aims of this study were to characterize WWOX transcription, methylation status and immunoexpression in salivary neoplasms and to determine whether these were associated with p73, p53, cell proliferation and DNA ploidy. MATERIALS AND METHODS Seven malignant and 21 benign fresh salivary neoplasms were included. WWOX expression was determined by RT-PCR and sequencing of transcripts, quantitative PCR and immunohistochemistry. Methylation-specific PCR was used to assess the methylation of its first exon. For p73, ΔNp73, p53 and ki67 immunohistochemistry and ploidy analysis, 29 malignant samples from archives were included. RESULTS No consistent pattern of WWOX exon 1 methylation was found, but aberrant and novel transcripts were observed in 17/28 neoplasms; 55% of tumours showed reduced WWOX RNA. WWOX RNA levels were associated with p53 immunopositivity. Immunohistochemical Wwox expression did not correlate with methylation status, p53 or p73 expression or proliferation. p73, proliferation and DNA ploidy were associated with malignant phenotype. CONCLUSION Aberrant WWOX transcription and decreased expression are frequent in salivary neoplasms and WWOX transcription is associated with p53 staining.
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Affiliation(s)
- C C Gomes
- Department of Pathology, Biological Sciences Institute, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil.
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21
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Salah Z, Aqeilan R, Huebner K. WWOX gene and gene product: tumor suppression through specific protein interactions. Future Oncol 2010; 6:249-59. [PMID: 20146584 DOI: 10.2217/fon.09.152] [Citation(s) in RCA: 84] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
The WWOX gene, an archetypal fragile gene, encompasses a chromosomal fragile site at 16q23.2, and encodes the approximately 46-kDa Wwox protein, with WW domains that interact with a growing list of interesting proteins. If the function of a protein is defined by the company it keeps, then Wwox is involved in numerous important signal pathways for bone and germ-cell development, cellular and animal growth and death, transcriptional control and suppression of cancer development. Because alterations to genes at fragile sites are exquisitely sensitive to replication stress-induced DNA damage, there has been an ongoing scientific discussion questioning whether such gene expression alterations provide a selective advantage for clonal expansion of neoplastic cells, and a parallel discussion on why important genes would be present at sites that are susceptible to inactivation. We offer some answers through a description of known WWOX functions.
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Affiliation(s)
- Zaidoun Salah
- The Lautenberg Center for Immunology, Institute for Medical Research Israel-Canada, The Hebrew University-Hadassah Medical School, Pharmacy Building, Jerusalem 91120, Israel.
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22
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Baykara O, Demirkaya A, Kaynak K, Tanju S, Toker A, Buyru N. WWOX gene may contribute to progression of non-small-cell lung cancer (NSCLC). Tumour Biol 2010; 31:315-20. [PMID: 20480411 DOI: 10.1007/s13277-010-0039-3] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2010] [Accepted: 04/06/2010] [Indexed: 11/25/2022] Open
Abstract
Lung cancer is the most common cause of cancer-related death worldwide and, like many other cancers, is affected by different genetic, epigenetic, and environmental factors. The WW domain-containing oxidoreductase (WWOX) gene is a tumor-suppressor gene located on chromosome 16q23.3-24.1, and it has been shown that it loses its function due to alterations in genetic and epigenetic mechanisms. The aim of this study is to investigate the relationship between lung cancer and WWOX gene. Tumor tissue samples, corresponding normal tissues, and blood samples obtained from 50 lung cancer patients were involved in the study. We analyzed methylation profile by methylation-specific PCR and mutations and polymorphisms by DNA sequencing. Methylation analysis showed that promoter hypermethylation was present in 38 of 50 (76%) patients. In addition, promoter region of WWOX gene of younger patients was more frequently methylated than older patients. Using DNA sequencing, we found four genetic alterations in WWOX gene. Two of them were germline mutations (Exon 4 and 7), and two of them were polymorphic (Exon 6 and 8). We found a new mutation in exon 7 (Arg-254-->Cys) which has not been described previously. The changes in the short-chain dehydrogenase domain of the protein caused by the genetic alterations may affect the function of the gene. We conclude that hypermethylation of WWOX gene promoter region and mutations in the gene might be related to lung carcinogenesis.
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MESH Headings
- Adenocarcinoma/genetics
- Adenocarcinoma/pathology
- Carcinoma, Large Cell/genetics
- Carcinoma, Large Cell/pathology
- Carcinoma, Non-Small-Cell Lung/genetics
- Carcinoma, Non-Small-Cell Lung/pathology
- Carcinoma, Squamous Cell/genetics
- Carcinoma, Squamous Cell/pathology
- DNA Methylation
- DNA, Neoplasm/blood
- DNA, Neoplasm/genetics
- Disease Progression
- Female
- Gene Expression Regulation, Neoplastic
- Humans
- Lung Neoplasms/genetics
- Lung Neoplasms/pathology
- Male
- Mutation/genetics
- Oxidoreductases/genetics
- Polymerase Chain Reaction
- Prognosis
- Promoter Regions, Genetic/genetics
- Tumor Suppressor Proteins/genetics
- WW Domain-Containing Oxidoreductase
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Affiliation(s)
- Onur Baykara
- Department of Medical Biology, Istanbul University Cerrahpasa Medical Faculty, Kat:6 Kocamustafapasa, Istanbul, Turkey
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23
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Yang J, Cogdell D, Yang D, Hu L, Li H, Zheng H, Du X, Pang Y, Trent J, Chen K, Zhang W. Deletion of the WWOX gene and frequent loss of its protein expression in human osteosarcoma. Cancer Lett 2009; 291:31-8. [PMID: 19896763 DOI: 10.1016/j.canlet.2009.09.018] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2009] [Accepted: 09/28/2009] [Indexed: 01/02/2023]
Abstract
To evaluate the role of WWOX gene in human osteosarcoma, array comparative genomic hybridization on 10 frozen osteosarcoma specimens and immunohistochemical staining of 55 formalin-fixed and paraffin-embedded tissues for WWOX was performed. Deletion of the WWOX gene was observed in 3 of 10 samples and the WWOX protein was undetectable in 34 of 55 osteosarcomas. This is the first investigation of the role of WWOX gene in human osteosarcoma. The WWOX gene deletion, loss of its protein expression, and lack of correlation of WWOX expression with patient survival suggest loss of WWOX expression is an early event in the pathogenesis of osteosarcoma and the phenotypic results of its deletion do not imminently result in patient death.
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Affiliation(s)
- Jilong Yang
- Department of Bone and Soft Tissue Tumors, Tianjin Medical University Cancer Hospital and Institute, China
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24
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Bouteille N, Driouch K, Hage PE, Sin S, Formstecher E, Camonis J, Lidereau R, Lallemand F. Inhibition of the Wnt/beta-catenin pathway by the WWOX tumor suppressor protein. Oncogene 2009; 28:2569-80. [PMID: 19465938 DOI: 10.1038/onc.2009.120] [Citation(s) in RCA: 82] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The WWOX gene encodes a candidate tumor suppressor protein (WWOX) implicated in a variety of human diseases such as cancer. To better understand the molecular mechanisms of WWOX action, we investigated novel partners of this protein. Using the two-hybrid system and a coimmunoprecipitation assay, we observed a physical association between WWOX and the Dishevelled protein (Dvl) family signaling elements involved in the Wnt/beta-catenin pathway. We found that enforced WWOX expression inhibited, and inhibition of endogenous WWOX expression stimulated the transcriptional activity of the Wnt/beta-catenin pathway. Inhibition of endogenous WWOX expression also enhanced the effect of Wnt-3a on beta-catenin stability. Moreover, we observed the sequestration of Dvl-2 wild type and Dvl-2NESm, a mutated form of Dvl-2 predominantly localized in the nucleus, in the cytoplasm compartment by WWOX. Our results indicate that WWOX is a novel inhibitor of the Wnt/beta-catenin pathway. WWOX would act, at least in part, by preventing the nuclear import of the Dvl proteins.
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Affiliation(s)
- N Bouteille
- Centre René Huguenin, FNCLCC, St-Cloud, France
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25
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The JNK inhibitor SP600129 enhances apoptosis of HCC cells induced by the tumor suppressor WWOX. J Hepatol 2008; 49:373-83. [PMID: 18620777 PMCID: PMC2574998 DOI: 10.1016/j.jhep.2008.05.015] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2007] [Revised: 04/23/2008] [Accepted: 05/18/2008] [Indexed: 02/08/2023]
Abstract
BACKGROUND/AIMS The FRA16D fragile site gene WWOX is a tumor suppressor that participates in p53-mediated apoptosis. The c-jun N-terminal kinase JNK1 interacts with WWOX and inhibits apoptosis. We investigated the function of WWOX in human hepatocellular carcinoma (HCC) and the effect of JNK inhibition on WWOX-mediated apoptosis. METHODS Allelic imbalance on chromosome 16 was analyzed in 73 HCCs using 53 microsatellite markers. WWOX mRNA in HCC cell lines and primary HCCs was measured by real-time RT-PCR. Effects of WWOX on proliferation and apoptosis and the interaction between WWOX and JNK inhibition were examined. RESULTS Loss on chromosome 16 occurred in 34 of 73 HCCs. Of 11 HCC cell lines, 2 had low, 7 intermediate, and 2 had high WWOX mRNA. Of 51 primary tumors, 23 had low WWOX mRNA. Forced expression of WWOX in SNU387 cells decreased FGF2-mediated proliferation and enhanced apoptosis induced by staurosporine and the JNK inhibitor SP600129. Conversely, knockdown of WWOX in SNU449 cells using shRNA targeting WWOX increased proliferation and resistance to SP600129-induced apoptosis. CONCLUSIONS WWOX induces apoptosis and inhibits human HCC cell growth through a mechanism enhanced by JNK inhibition.
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Alsop AE, Taylor K, Zhang J, Gabra H, Paige AJW, Edwards PAW. Homozygous deletions may be markers of nearby heterozygous mutations: The complex deletion at FRA16D in the HCT116 colon cancer cell line removes exons of WWOX. Genes Chromosomes Cancer 2008; 47:437-47. [PMID: 18273838 DOI: 10.1002/gcc.20548] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
Homozygous deletions in cancer cells have been thought to harbor tumor suppressor genes. We show that the 25 and 50 kb homozygous deletions in WWOX in the colon cancer cell line HCT116 result from a complex set of heterozygous deletions, some of which overlap to give homozygous loss. One of the heterozygous deletions has removed exons 6-8 of one allele of WWOX, and there is also a third copy of the distal region of WWOX in an unbalanced translocation. The exon 6-8 deletion results in allele-specific expression of a deleted transcript, which seems likely to be the main biological consequence of the deletions, since similar transcripts are found in other tumors. We show that such a complex set of deletions could form in a single exchange event between two homologous chromosomes, so that the selective advantage of such rearrangements need not be within the homozygous deletion. We conclude that homozygous deletions can be markers of complex rearrangements that have targets outside the homozygous deletion itself and that the target of deletions in the FRA16D region is indeed WWOX, the common outcome being the removal of particular WWOX exons. This article contains supplementary material available at http://www.interscience.wiley.com/jpages/1045-2257/suppmat.
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Affiliation(s)
- Amber E Alsop
- Hutchison/MRC Research Centre and Department of Pathology, University of Cambridge, Cambridge, UK
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Ramos D, Abba M, López-Guerrero JA, Rubio J, Solsona E, Almenar S, Llombart-Bosch A, Aldaz CM. Low levels of WWOX protein immunoexpression correlate with tumour grade and a less favourable outcome in patients with urinary bladder tumours. Histopathology 2008; 52:831-9. [PMID: 18452537 DOI: 10.1111/j.1365-2559.2008.03033.x] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
AIMS To correlate the immunohistochemical detection of WWOX with histological measures and disease progression within the whole spectrum of urothelial bladder neoplasms. METHODS AND RESULTS One hundred and one patients with primary bladder tumours were retrospectively analysed. Immunohistochemically, a polyclonal antibody was utilized and the level of WWOX protein expression was analysed by using a combined score system based on intensity of the reaction and percentage of immunoreactive tumour cells. WWOX protein expression was consistently expressed in non-neoplastic urothelium, whereas a progressive loss of immunoreactivity was observed as tumour grade and stage increased (P < 0.05). Principal component analysis showed that reduced WWOX immunoexpression was significantly associated with high histological grades (P = 0.001), advanced stage (P = 0.002), tumour size (P = 0.04) and cancer progression (P = 0.028). Invasive urothelial carcinomas of the bladder with squamous metaplasia presented the lowest levels of WWOX protein. Kaplan-Meier analyses demonstrated a significant correlation between loss of WWOX expression and a shorter progression-free survival (P = 0.042), whereas the prediction of overall survival achieved borderline significance (P = 0.053). CONCLUSION Loss of WWOX immunoexpression strongly correlates with classical clinicopathological factors and appears to be a potential predictive marker of progressive disease.
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Affiliation(s)
- D Ramos
- Department of Pathology, School of Medicine, University of Valencia, Valencia, Spain.
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Pimenta FJ, Cordeiro GT, Pimenta LGGS, Viana MB, Lopes J, Gomez MV, Aldaz CM, De Marco L, Gomez RS. Molecular alterations in the tumor suppressor gene WWOX in oral leukoplakias. Oral Oncol 2007; 44:753-8. [PMID: 18061530 DOI: 10.1016/j.oraloncology.2007.08.019] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2007] [Revised: 08/28/2007] [Accepted: 08/29/2007] [Indexed: 10/22/2022]
Abstract
Oral leukoplakia is the most prevalent and potentially malignant disorder of the oral mucosa. Previous studies have demonstrated that molecular changes of the WWOX gene (WW-domain containing oxidoreductase), a candidate tumor suppressor gene located at 16q23.3-24.1 that spans FRA16D, the second most common fragile site, are present in several malignant neoplasias, including oral squamous cell carcinoma. In this report, the role of the WWOX gene was investigated in 23 cases of oral leukoplakias. Using nested RT-PCR and immunohistochemistry, altered mRNA transcription and/or reduced Wwox protein expression was observed in 35% of the lesions when compared with normal mucosa. The majority of lesions (4/6) with altered transcripts had a reduction in the expression of Wwox protein. Although normal WWOX expression was found in some lesions with dysplasia, all lesions with WWOX mRNA and/or protein expression showed histological evidence of dysplasia and none of the cases without dysplasia presented this alteration. These results show that the WWOX gene alteration is an early genetic alteration and may contribute to oral carcinogenesis.
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Affiliation(s)
- Flávio Juliano Pimenta
- Department of Oral Surgery and Pathology, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
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Dias EP, Pimenta FJ, Sarquis MS, Dias Filho MA, Aldaz CM, Fujii JB, Gomez RS, De Marco L. Association between decreased WWOX protein expression and thyroid cancer development. Thyroid 2007; 17:1055-9. [PMID: 18047428 PMCID: PMC4150466 DOI: 10.1089/thy.2007.0232] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
CONTEXT Chromosomal fragile sites are often related to cancer development. The WW domain-containing oxidoreductase gene (WWOX) spans the second most common chromosomal fragile site (FRA16D) and encodes an important proapoptotic protein. OBJECTIVE To verify our hypothesis that underexpression of WWOX could contribute to malignant transformation of the thyroid cells. METHOD We compared WWOX expression among follicular adenomas (FAs) and differentiated thyroid carcinomas [follicular thyroid carcinomas (FTCs) and papillary thyroid carcinomas (PTCs)] in 53 thyroid tumors resected from patients submitted to total thyroidectomy. DESIGN Multiple fields of tumor areas of FAs, FTCs, and PTCs as well as normal thyroid tissue were stained with WWOX antiserum, and classified by the extent of staining (percentage of cells staining) and staining intensity. MAIN OUTCOME PTCs showed a significantly decreased expression of WWOX when compared to FAs and FTCs. Further, using a unique model of comparison in patients in whom FAs and PTCs were concomitantly present, we detected the same result (i.e., no expression in PTCs). CONCLUSION We conclude that WWOX underexpression is an important step that might increase the vulnerability to the carcinogenesis process in PTCs.
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Affiliation(s)
- Eduardo P Dias
- Department of Pharmacology, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil.
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30
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Abstract
The WW domain-containing oxidoreductase (WWOX) gene is located at 16q23.1-16q23.2, a region that spans the second most common human fragile site, FRA16D. The WWOX protein contains two N-terminal WW domains and a central short chain oxidoreductase-like domain. In the last few years, considerable amount of data have shown inactivation of WWOX in a variety of human malignancies. Moreover, interacting partners have been identified biochemically that define, at least in part, the molecular mechanism of WWOX action. Recently, we demonstrated that targeted deletion of the Wwox gene in the mouse led to increased incidence of spontaneous and chemically induced tumor formation, thereby providing the first in vivo evidence that WWOX is a bona fide tumor suppressor. This review focuses on the most recent progress in understanding WWOX function as a tumor suppressor.
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Affiliation(s)
- Rami I Aqeilan
- Department of Molecular Virology, Immunology and Medical Genetics, Human Cancer Genetics Program, Comprehensive Cancer Center, The Ohio State University, Columbus, Ohio 43210, USA.
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Aqeilan RI, Trapasso F, Hussain S, Costinean S, Marshall D, Pekarsky Y, Hagan JP, Zanesi N, Kaou M, Stein GS, Lian JB, Croce CM. Targeted deletion of Wwox reveals a tumor suppressor function. Proc Natl Acad Sci U S A 2007; 104:3949-54. [PMID: 17360458 PMCID: PMC1820689 DOI: 10.1073/pnas.0609783104] [Citation(s) in RCA: 175] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The WW domain-containing oxidoreductase (WWOX) spans the second most common fragile site of the human genome, FRA16D, located at 16q23, and its expression is altered in several types of human cancer. We have previously shown that restoration of WWOX expression in cancer cells suppresses tumorigenicity. To investigate WWOX tumor suppressor function in vivo, we generated mice carrying a targeted deletion of the Wwox gene and monitored incidence of tumor formation. Osteosarcomas in juvenile Wwox(-/-) and lung papillary carcinoma in adult Wwox(+/-) mice occurred spontaneously. In addition, Wwox(+/-) mice develop significantly more ethyl nitrosourea-induced lung tumors and lymphomas in comparison to wild-type littermate mice. Intriguingly, these tumors still express Wwox protein, suggesting haploinsuffiency of WWOX itself is cancer predisposing. These results indicate that WWOX is a bona fide tumor suppressor.
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Affiliation(s)
- Rami I Aqeilan
- Department of Molecular Virology, Immunology, and Medical Genetics, Comprehensive Cancer Center, Ohio State University, 410 West 12th Avenue, Columbus, OH 43210, USA.
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Chang NS, Hsu LJ, Lin YS, Lai FJ, Sheu HM. WW domain-containing oxidoreductase: a candidate tumor suppressor. Trends Mol Med 2006; 13:12-22. [PMID: 17142102 DOI: 10.1016/j.molmed.2006.11.006] [Citation(s) in RCA: 99] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2006] [Revised: 11/03/2006] [Accepted: 11/22/2006] [Indexed: 10/23/2022]
Abstract
Common fragile site gene WWOX encodes a candidate tumor suppressor WW domain-containing oxidoreductase. Alteration of this gene, along with dramatic downregulation of WWOX protein, is shown in the majority of invasive cancer cells. Ectopic WWOX exhibits proapoptotic and tumor inhibitory functions in vitro and in vivo, probably interacting with growth regulatory proteins p53, p73 and others. Hyaluronidases regulate WWOX expression, increase cancer invasiveness and seem to be involved in the development of hormone-independent growth of invasive cancer cells. Estrogen and androgen stimulate phosphorylation and nuclear translocation of WWOX, although binding of WWOX to these sex hormones is unknown. We propose that suppression of WWOX expression by overexpressed hyaluronidases might contribute in part to the development of hormone independence in invasive cancer.
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Affiliation(s)
- Nan-Shan Chang
- Institute of Molecular Medicine, National Cheng Kung University Medical College, Tainan, Taiwan 70101, Republic of China.
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Smith DI, McAvoy S, Zhu Y, Perez DS. Large common fragile site genes and cancer. Semin Cancer Biol 2006; 17:31-41. [PMID: 17140807 DOI: 10.1016/j.semcancer.2006.10.003] [Citation(s) in RCA: 89] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2006] [Revised: 09/07/2006] [Accepted: 10/17/2006] [Indexed: 12/01/2022]
Abstract
The common fragile sites are large regions of genomic instability that are found in all individuals and are hot spots for chromosomal rearrangements and deletions. A number of the common fragile sites have been found to span genes that are encoded by very large genomic regions. Two of these genes, FHIT and WWOX, have already been demonstrated to function as tumor suppressors. In this review we will discuss the large common fragile site genes that have been identified to date, and the role that these genes appear to play both in cellular responses to stress and in the development of cancer.
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Affiliation(s)
- David I Smith
- Division of Experimental Pathology, Department of Laboratory Medicine and Pathology, Mayo Clinic College of Medicine, 200 First Street, S.W., Rochester, MN 55905, United States.
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Nunez MI, Ludes-Meyers J, Aldaz CM. WWOX protein expression in normal human tissues. J Mol Histol 2006; 37:115-25. [PMID: 16941225 PMCID: PMC4144810 DOI: 10.1007/s10735-006-9046-5] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2006] [Accepted: 07/06/2006] [Indexed: 11/24/2022]
Abstract
WWOX is a putative tumor suppressor gene that spans approximately a 1 Mb genomic region and is the site for the second most common chromosomal fragile site, FRA16D at 16q23. Various studies have focused on the expression of WWOX in human cancer mostly at the RNA level, but little is known about the normal pattern of WWOX protein expression in non-neoplastic tissues. In this study, a comprehensive analysis of WWOX protein expression in normal tissues was performed by means of immunohistochemistry utilizing a very specific anti-WWOX polyclonal antibody. We analyzed tissue cores of human samples representing more than 30 organs, using various tissue microarray (TMA) slides. Due to the potential role of WWOX in sex-steroid metabolism, whole sections from hormonally regulated organs like breast, ovaries, testes and prostate were also analyzed. The results from our study indicate that WWOX is preferentially highly expressed in secretory epithelial cells of reproductive, endocrine and exocrine organs, as well as in ductal epithelial cells from specific segments of the urinary system. Interestingly, we also observed significant WWOX protein expression in various cell types of neural origin including neurons, ependymal cells and astrocytes. No expression of WWOX was detected in adipose, connective, and lymphoid tissues, myelinized structures and blood vessels. By better defining the topographic distribution of WWOX in normal tissues this study provides some insight on the potential physiological role of this novel protein.
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Affiliation(s)
- Maria I. Nunez
- Department of Carcinogenesis, The University of Texas, M.D. Anderson Cancer Center, Science Park-Research Division, P.O. Box 389, Smithville, TX 78957, USA
| | - John Ludes-Meyers
- Department of Carcinogenesis, The University of Texas, M.D. Anderson Cancer Center, Science Park-Research Division, P.O. Box 389, Smithville, TX 78957, USA
| | - C. Marcelo Aldaz
- Department of Carcinogenesis, The University of Texas, M.D. Anderson Cancer Center, Science Park-Research Division, P.O. Box 389, Smithville, TX 78957, USA
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