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Investigation of the Epithelial to Mesenchymal Transition (EMT) Process in Equine Papillomavirus-2 (EcPV-2)-Positive Penile Squamous Cell Carcinomas. Int J Mol Sci 2021; 22:ijms221910588. [PMID: 34638929 PMCID: PMC8508821 DOI: 10.3390/ijms221910588] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 09/26/2021] [Accepted: 09/28/2021] [Indexed: 12/14/2022] Open
Abstract
Equine penile squamous cell carcinoma (epSCC) is the most frequent tumor of the external male genitalia, representing 67.5% of equine genital cancers. epSCC is associated with papilloma virus (PV) infection and has been recently proposed as a model for human PV-induced squamous cell carcinomas. It has already been suggested that epSCC might undergo epithelial-to-mesenchymal transition (EMT). This work aims to investigate in detail this process and the possible role of PV oncoproteins in epSCC. For this purpose, 18 penile SCCs were retrospectively selected and tested for both EcPV2 presence and oncoproteins (EcPV2 E6 and EcPV2 E7) expression. Moreover, immunohistochemical EMT characterization was carried out by analyzing the main epithelial markers (E-cadherin, β-catenin, and pan-cytokeratin AE3/AE1), the main mesenchymal markers (N-cadherin and vimentin), and the main EMT-related transcription factors (TWIST-1, ZEB-1). PCR analysis was positive for EcPV2 in 16 out of 18 samples. EMT was investigated in epSCC positive for EcPV2. The immunohistochemistry results suggested the presence of EMT processes in the neoplastic cells at the tumor invasive front. Moreover, the significant upregulation of RANKL, together with BCATN1, LEF1, and FOSL1 genes, might suggest a canonical Wnt pathway activation, similarly to what is reported in human penile squamous cell carcinomas
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Dos Santos J, Cabrebra R, Neves B, Silva E, Polónia A. Squamous cell carcinoma with sarcomatous transformation of the penis. AUTOPSY AND CASE REPORTS 2021; 11:e2021303. [PMID: 34458171 PMCID: PMC8387073 DOI: 10.4322/acr.2021.303] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Accepted: 06/05/2021] [Indexed: 11/26/2022] Open
Abstract
Malignant tumors of the penis are rare, most of them being squamous cell carcinomas (SCCs). We report the case of a 75-year-old man with a large penile mass submitted to partial penectomy. The specimen showed an exophytic mass involving the glans, coronal sulcus, and prepuce. Microscopic examination showed a carcinoma with two distinct areas: a mixed SCC and a sarcomatoid carcinoma. The SCC component had areas of verrucous carcinoma and areas of classical invasive SCC. The tumor cells expressed p63 with the absence of p16 expression. Vimentin and p53 were positive in the sarcomatous component. The morphology and immunohistochemistry were compatible with mixed SCC (verrucous hybrid-sarcomatoid carcinoma). Additionally, the tumor cells also expressed 3 different clones of PDL1 (22C3, SP263, and SP142). Two months later, the patient presented local recurrence with multiple lymph nodes and lung metastases, dying 7 weeks later. Mixed tumors represent diagnostic challenges. The correct identification of adverse prognostic factors can be the first step to implement the treatment with a higher probability of success.
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Affiliation(s)
- Joana Dos Santos
- Unidade Local de Saúde de Matosinhos (ULSM), Department of Pathology, Matosinhos, Porto, Portugal
| | - Rafael Cabrebra
- Instituto Português de Oncologia de Lisboa (IPO Lisboa), Department of Pathology, Lisboa, Lisboa, Portugal
| | - Beatriz Neves
- Universidade do Porto (U. Porto), Institute of Molecular Pathology and Immunology (IPATIMUP), Ipatimup Diagnostics, Porto, Porto, Portugal.,Instituto de Investigação e Inovação em Saúde (I3S), University of Porto, Porto, Porto, Portugal
| | - Eduardo Silva
- Instituto Português de Oncologia de Lisboa (IPO Lisboa), Department of Urology, Lisboa, Lisboa, Portugal
| | - António Polónia
- Universidade do Porto (U. Porto), Institute of Molecular Pathology and Immunology (IPATIMUP), Ipatimup Diagnostics, Porto, Porto, Portugal.,Instituto de Investigação e Inovação em Saúde (I3S), University of Porto, Porto, Porto, Portugal
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Chen X, Xiong D, Ye L, Wang K, Huang L, Mei S, Wu J, Chen S, Lai X, Zheng L, Wang M. Up-regulated lncRNA XIST contributes to progression of cervical cancer via regulating miR-140-5p and ORC1. Cancer Cell Int 2019; 19:45. [PMID: 30858762 PMCID: PMC6394057 DOI: 10.1186/s12935-019-0744-y] [Citation(s) in RCA: 60] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Accepted: 01/31/2019] [Indexed: 12/26/2022] Open
Abstract
Background The study purpose was to make investigation into the influence of XIST on cervical cancer progression and what’s more its potential mechanism. Methods The cervical cancer data sets (lncRNA, miRNA, and mRNA) obtained from TCGA were analyzed with the “mixOmics” R package. Then, the expression of XIST, miR-140-5p, and ORC1 were detected using qRT-PCR and western blot in both tissues and cervical cancer cell lines (Hela and C33A) to verify the bioinformatics analyses results. CCK-8 assay, 5-ethynyl-2′-deoxyuridine (EdU) assays, cell cycle assay and cell apoptosis assay were practiced. Besides, immunohistochemistry staining was operated for the detection of the Ki-67, E-cadherin and vimentin expression in cervical cancer tissues and the apoptosis-related proteins expression (c-caspase3, Bcl-2, total PARP and cleaved PARP) was verified through western blot. And in vivo experiments were implemented. Results MiR-140-5p was down-regulated but XIST and ORC1 were up-regulated in cervical cancer tissues and cell lines. Knocking down of the XIST or ORC1 memorably suppressed cell proliferation, blocked cell cycle, decreased the expression of Bcl-2 while increased the apoptosis rate and the expression of c-caspase3 and cleaved PARP in HeLa and C33A cells. Besides, the results of immunohistochemistry staining showed knocking down the expression of XIST improved the expression levels of E-cadherin and decreased Ki-67 and vimentin expression. And overexpression of miR-140-5p also could inhibit the progression and reverse the influence of XIST and ORC1 in HeLa and C33A cells. Conclusion Our study indicated the effects of XIST/miR-140-5p/ORC1 axis on the progression of cervical cancer which will shed new light on epigenetic diagnostics and therapeutics in cervical cancer.
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Affiliation(s)
- Xing Chen
- 1Department of Obstetrics and Gynecology, Taizhou Hospital of Zhejiang Province, Wenzhou Medical University, No. 150 Ximen Street, Linhai, 317000 Zhejiang China.,Center for Uterine Cancer Diagnosis & Therapy Research of Zhejiang Province, Hangzhou, 310000 Zhejiang China
| | - Dongsheng Xiong
- State Key Laboratory of Experimental Hematology, Institute of Hematology & Hospital of Blood Disease, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300020 China
| | - Liya Ye
- 1Department of Obstetrics and Gynecology, Taizhou Hospital of Zhejiang Province, Wenzhou Medical University, No. 150 Ximen Street, Linhai, 317000 Zhejiang China.,Center for Uterine Cancer Diagnosis & Therapy Research of Zhejiang Province, Hangzhou, 310000 Zhejiang China
| | - Kai Wang
- 1Department of Obstetrics and Gynecology, Taizhou Hospital of Zhejiang Province, Wenzhou Medical University, No. 150 Ximen Street, Linhai, 317000 Zhejiang China.,Center for Uterine Cancer Diagnosis & Therapy Research of Zhejiang Province, Hangzhou, 310000 Zhejiang China
| | - Lingfei Huang
- 1Department of Obstetrics and Gynecology, Taizhou Hospital of Zhejiang Province, Wenzhou Medical University, No. 150 Ximen Street, Linhai, 317000 Zhejiang China.,Center for Uterine Cancer Diagnosis & Therapy Research of Zhejiang Province, Hangzhou, 310000 Zhejiang China
| | - Shuangshuang Mei
- 1Department of Obstetrics and Gynecology, Taizhou Hospital of Zhejiang Province, Wenzhou Medical University, No. 150 Ximen Street, Linhai, 317000 Zhejiang China.,Center for Uterine Cancer Diagnosis & Therapy Research of Zhejiang Province, Hangzhou, 310000 Zhejiang China
| | - Jinhong Wu
- 1Department of Obstetrics and Gynecology, Taizhou Hospital of Zhejiang Province, Wenzhou Medical University, No. 150 Ximen Street, Linhai, 317000 Zhejiang China.,Center for Uterine Cancer Diagnosis & Therapy Research of Zhejiang Province, Hangzhou, 310000 Zhejiang China
| | - Shanshan Chen
- 1Department of Obstetrics and Gynecology, Taizhou Hospital of Zhejiang Province, Wenzhou Medical University, No. 150 Ximen Street, Linhai, 317000 Zhejiang China.,Center for Uterine Cancer Diagnosis & Therapy Research of Zhejiang Province, Hangzhou, 310000 Zhejiang China
| | - Xiaoli Lai
- 1Department of Obstetrics and Gynecology, Taizhou Hospital of Zhejiang Province, Wenzhou Medical University, No. 150 Ximen Street, Linhai, 317000 Zhejiang China.,Center for Uterine Cancer Diagnosis & Therapy Research of Zhejiang Province, Hangzhou, 310000 Zhejiang China
| | - Lingzhi Zheng
- 1Department of Obstetrics and Gynecology, Taizhou Hospital of Zhejiang Province, Wenzhou Medical University, No. 150 Ximen Street, Linhai, 317000 Zhejiang China.,Center for Uterine Cancer Diagnosis & Therapy Research of Zhejiang Province, Hangzhou, 310000 Zhejiang China
| | - Meifen Wang
- 1Department of Obstetrics and Gynecology, Taizhou Hospital of Zhejiang Province, Wenzhou Medical University, No. 150 Ximen Street, Linhai, 317000 Zhejiang China.,Center for Uterine Cancer Diagnosis & Therapy Research of Zhejiang Province, Hangzhou, 310000 Zhejiang China
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Suárez-Bonnet A, Willis C, Pittaway R, Smith K, Mair T, Priestnall SL. Molecular carcinogenesis in equine penile cancer: A potential animal model for human penile cancer. Urol Oncol 2018; 36:532.e9-532.e18. [PMID: 30270026 DOI: 10.1016/j.urolonc.2018.09.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Revised: 08/19/2018] [Accepted: 09/03/2018] [Indexed: 12/19/2022]
Abstract
OBJECTIVES To evaluate the expression of COX-2, E-cadherin, vimentin, 14-3-3σ, and Phosphatase and tensin homolog (PTEN) tumor-related proteins in equine penile papillomas (ePP) and squamous cell carcinomas (ePSCC), the occurrence of epithelial-mesenchymal transition (EMT) at the invasion front (IF) and compare our findings with current knowledge on human penile squamous cell carcinoma (hPSCC). MATERIAL AND METHODS We analyzed, by immunohistochemistry in 45 equine penile proliferative epithelial lesions, the expression of COX-2, E-cadherin, vimentin, 14-3-3σ, and PTEN using monoclonal antibodies. Tumors were histopathologically classified as well-differentiated or poorly differentiated using the IF grading scheme. Semiquantitative analysis was performed to determine down or up-regulation of the proteins and association with histopathological characteristics were statistically investigated using Mann-Whitney U test and/or Spearman's tests. RESULTS COX-2 was neo-expressed in 86.6% of the cases and expression progressively increased from ePP to ePSCC (P = 0.0003) and from well to poorly differentiated (P = 0.033). High COX-2 expression was associated with a high mitotic index (MI) (P = 0.026). In contrast to normal epidermis, ePSCC had very low E-cadherin expression in 64% of the cases (P = 0.0005). Vimentin was neo-expressed in 65% of poorly differentiated ePSCC at the IF indicating EMT. Cytoplasmic 14-3-3σ protein expression was reduced in 42% of the ePSCC and additionally, nuclear expression of 14-3-3σ in neoplastic keratinocytes and in the cytoplasm of stromal fibroblasts at the IF was features only found in ePSCC. PTEN protein showed a tendency to be decreased or lost in ePSCC. CONCLUSIONS Our study provides evidence of molecular abnormalities in ePSCC similar to those reported for human PSCC. The occurrence of EMT at the IF is a common event in ePSCC. Naturally occurring ePSCC could serve as a valuable preclinical animal model to explore upcoming therapeutic options for hPSCC.
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Affiliation(s)
- Alejandro Suárez-Bonnet
- Department of Pathobiology and Population Sciences, The Royal Veterinary College, Hawkshead Lane, Hatfield, Hertfordshire AL9 7TA, UK.
| | - Claire Willis
- Department of Pathobiology and Population Sciences, The Royal Veterinary College, Hawkshead Lane, Hatfield, Hertfordshire AL9 7TA, UK
| | - Rachel Pittaway
- Department of Pathobiology and Population Sciences, The Royal Veterinary College, Hawkshead Lane, Hatfield, Hertfordshire AL9 7TA, UK
| | - Ken Smith
- Department of Pathobiology and Population Sciences, The Royal Veterinary College, Hawkshead Lane, Hatfield, Hertfordshire AL9 7TA, UK
| | - Tim Mair
- Bell Equine Veterinary Clinic, Mereworth, Maidstone, Kent ME18 5GS, UK
| | - Simon L Priestnall
- Department of Pathobiology and Population Sciences, The Royal Veterinary College, Hawkshead Lane, Hatfield, Hertfordshire AL9 7TA, UK
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Zhou QH, Deng CZ, Chen JP, Huang KB, Liu TY, Yao K, Liu ZW, Qin ZK, Li YH, Guo SJ, Ye YL, Zhou FJ, Huang W, Liu RY, Han H. Elevated serum LAMC2 is associated with lymph node metastasis and predicts poor prognosis in penile squamous cell carcinoma. Cancer Manag Res 2018; 10:2983-2995. [PMID: 30214293 PMCID: PMC6118283 DOI: 10.2147/cmar.s171912] [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] [Indexed: 12/13/2022] Open
Abstract
Purpose Molecular biomarkers, especially serologic factors, have been widely applied in cancer diagnosis and patient follow-up. However, there are few valuable prognostic factors in penile squamous cell carcinoma (PSCC). Here, the authors investigated whether laminin gamma 2 (LAMC2) expression, especially serum LAMC2 (sLAMC2) level, was a suitable prognostic factor that could aid in the prediction of survival in PSCC. Patients and methods This study included 114 PSCC patients. Reverse transcription-quantitative polymerase chain reaction, Western blotting, and immunohistochemistry were performed to detect LAMC2 expression; enzyme-linked immunosorbent assays were used to test sLAMC2 concentration; and a Transwell assay and an in vivo experiment in nude mice were used to test PSCC cell migration, invasion, and metastasis. The chi-squared test was used to analyze the association between LAMC2 level and clinical parameters, the Cox proportional hazards regression model was used to evaluate the hazard ratio for death, and Kaplan–Meier analysis with a log-rank test was used for the survival analysis. Results LAMC2 was overexpressed in PSCC tissues, and the LAMC2 expression level was higher in metastatic lymph node (LN) tissues than in primary cancer tissues; moreover, the LAMC2 levels in primary cancer tissues and sLAMC2 were higher in patients with LN metastasis than in those without LN metastasis. Upregulated LAMC2 facilitated the migration, invasion, and epithelial-to-mesenchymal transition of PSCC cells in vitro and promoted LN metastasis of PSCC cells in nude mice. Elevated LAMC2 levels were strongly correlated with advanced clinicopathologic parameters, especially LN metastasis, in PSCC patients and predicted shorter disease-specific survival. The predictive value of sLAMC2 is superior to that of C-reactive protein and squamous cell carcinoma antigen previously reported in PSCC patients, and a stratification analysis revealed that the level of sLAMC2 had a higher predictive value for disease-specific survival in early penile cancer (especially at the N0/X stage) than in later-stage penile cancer. Conclusion These findings suggest that sLAMC2 is a potential serologic prognostic marker in PSCC and could aid in risk stratification in early-stage PSCC patients.
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Affiliation(s)
- Qiang-Hua Zhou
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China, ; .,Department of Urology, Sun Yat-sen University Cancer Center, Guangzhou, China,
| | - Chuang-Zhong Deng
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China, ;
| | - Jie-Ping Chen
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China, ;
| | - Kang-Bo Huang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China, ; .,Department of Urology, Sun Yat-sen University Cancer Center, Guangzhou, China,
| | - Ting-Yu Liu
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China, ; .,Department of Urology, Sun Yat-sen University Cancer Center, Guangzhou, China,
| | - Kai Yao
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China, ; .,Department of Urology, Sun Yat-sen University Cancer Center, Guangzhou, China,
| | - Zhuo-Wei Liu
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China, ; .,Department of Urology, Sun Yat-sen University Cancer Center, Guangzhou, China,
| | - Zi-Ke Qin
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China, ; .,Department of Urology, Sun Yat-sen University Cancer Center, Guangzhou, China,
| | - Yong-Hong Li
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China, ; .,Department of Urology, Sun Yat-sen University Cancer Center, Guangzhou, China,
| | - Sheng-Jie Guo
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China, ; .,Department of Urology, Sun Yat-sen University Cancer Center, Guangzhou, China,
| | - Yun-Lin Ye
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China, ; .,Department of Urology, Sun Yat-sen University Cancer Center, Guangzhou, China,
| | - Fang-Jian Zhou
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China, ; .,Department of Urology, Sun Yat-sen University Cancer Center, Guangzhou, China,
| | - Wenlin Huang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China, ; .,Guangdong Provincial Key Laboratory of Tumor Targeted Drugs, Guangzhou Enterprise Key Laboratory of Gene Medicine, Guangzhou Doublle Bioproducts Co. Ltd., Guangzhou, China
| | - Ran-Yi Liu
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China, ;
| | - Hui Han
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China, ; .,Department of Urology, Sun Yat-sen University Cancer Center, Guangzhou, China,
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Xu R, Zhu X, Chen F, Huang C, Ai K, Wu H, Zhang L, Zhao X. LncRNA XIST/miR-200c regulates the stemness properties and tumourigenicity of human bladder cancer stem cell-like cells. Cancer Cell Int 2018; 18:41. [PMID: 29559853 PMCID: PMC5859407 DOI: 10.1186/s12935-018-0540-0] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Accepted: 03/14/2018] [Indexed: 11/10/2022] Open
Abstract
Background The abnormal expression of non-coding RNAs (ncRNAs), such as microRNAs and long ncRNAs, often contribute to the development of cancers. miR-200c functions as a tumour suppressor that impacts the growth of bladder cancer cells and the epithelial-to-mesenchymal transition (EMT). LncRNA X inactive specific transcript (XIST) is highly expressed in tumour tissues, promotes cancer progression and might act as an miRNA molecular sponge. This study aimed to examine the relationship between lncRNA XIST and miR-200c and to assess their functions in the regulation of the stemness properties and tumourigenicity of human bladder cancer stem cell (BCSC)-like cells. Methods Biological effects including cell clone formation, sphere formation, self-renewal properties and mouse tumourigenesis were examined in BCSC-like cells with miR-200c overexpression or XIST knockdown. Real-time PCR and western blotting were used to detect the expression changing of related factors in BCSC-like cells gene models. Dual luciferase reporter assay was used to examine the changes of XIST and miR-200c expression levels. Results The results indicated that miR-200c overexpression and XIST knockdown could inhibit cell clone formation, self-renewal ability and EMT in BCSC-like cells. miR-200c knockdown could restore the tumour growth inhibition caused by XIST knockdown. Conclusion LncRNA XIST may act as an inhibitor of miR-200c to regulate the stemness properties and tumourigenicity of bladder cancer cells, and our findings might reveal a potential strategy of targeting XIST for bladder cancer therapy.
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Affiliation(s)
- Ran Xu
- Department of Urology, The Second Xiangya Hospital, Central South University, Middle Renmin Road No. 139, Changsha, 410011 Hunan China
| | - Xuan Zhu
- Department of Urology, The Second Xiangya Hospital, Central South University, Middle Renmin Road No. 139, Changsha, 410011 Hunan China
| | - Fangzhi Chen
- Department of Urology, The Second Xiangya Hospital, Central South University, Middle Renmin Road No. 139, Changsha, 410011 Hunan China
| | - Changkun Huang
- Department of Urology, The Second Xiangya Hospital, Central South University, Middle Renmin Road No. 139, Changsha, 410011 Hunan China
| | - Kai Ai
- Department of Urology, The Second Xiangya Hospital, Central South University, Middle Renmin Road No. 139, Changsha, 410011 Hunan China
| | - Hongtao Wu
- Department of Urology, The Second Xiangya Hospital, Central South University, Middle Renmin Road No. 139, Changsha, 410011 Hunan China
| | - Lei Zhang
- Department of Urology, The Second Xiangya Hospital, Central South University, Middle Renmin Road No. 139, Changsha, 410011 Hunan China
| | - Xiaokun Zhao
- Department of Urology, The Second Xiangya Hospital, Central South University, Middle Renmin Road No. 139, Changsha, 410011 Hunan China
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Y Box-Binding Protein 1 Promotes Epithelial-Mesenchymal Transition, Invasion, and Metastasis of Cervical Cancer via Enhancing the Expressions of Snail. Int J Gynecol Cancer 2018; 27:1753-1760. [PMID: 28708785 DOI: 10.1097/igc.0000000000001066] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
OBJECTIVE Y box-binding protein 1 (YB-1) is a potent oncogenic protein. How it regulates Snail in most tumors including cervical cancer is unknown. This article is to study if YB-1 plays a role in cervical cancer via regulating the expression of Snail. METHODS Immunohistochemical staining of YB-1, Snail, and E-cadherin (E-cad) was performed on tissue specimens including 35 cases of chronic cervicitis (as a control), 35 cases of cervical intraepithelial neoplasm (CIN) I, 35 cases of CIN II/III, 28 cases of unmetastatic cervical squamous cell carcinoma, and 19 cases of metastatic cervical squamous cell carcinoma. RNA interference technique was used to knock down YB-1, E6, and Snail genes. Quantitative polymerase chain reaction, western blot, and transwell experiment were used to detect RNA, protein, and cell invasion of cervical cancer cell lines Hela and C33A, respectively. RESULTS First, YB-1 knockdown significantly reduced messenger RNA (mRNA) and protein levels of Snail, followed by the increased mRNA and protein levels of E-cad and the decreased invasive ability in both Hela (human papillomavirus [HPV] 18+) and C33A (HPV-) cell lines. Second, YB-1 and Snail protein were correlatively expressed in the group order of metastatic cervical squamous cell carcinoma > unmetastatic cervical squamous cell carcinoma > CINs > cervicitis, with the inverse expression mode of E-cad in the group order, P value less than 0.01, between any 2 groups. Finally, HPV18 E6 knockdown reduced the mRNA and protein levels of YB-1 and Snail in Hela cells. CONCLUSIONS The results firstly reported that YB-1 whose mRNA expression is regulated by HPV18 E6 promotes epithelial-mesenchymal transition and progression of cervical cancer via enhancing the expressions of Snail, which indicated that YB-1/Snail/epithelial-mesenchymal transition axis could have a potential use in the diagnosis and therapy of cervical cancer metastasis as a cancer marker and molecular target.
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Chang L, Li K, Guo T. miR-26a-5p suppresses tumor metastasis by regulating EMT and is associated with prognosis in HCC. Clin Transl Oncol 2016; 19:695-703. [PMID: 27864783 DOI: 10.1007/s12094-016-1582-1] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2016] [Accepted: 11/14/2016] [Indexed: 12/21/2022]
Abstract
OBJECTIVE To determine the role of miR-26a-5p in tumor invasion and metastasis in hepatocellular carcinoma (HCC). METHODS We evaluated miR-26a-5p expression in HCC tissues by quantitative PCR and then analyzed its clinical significance using a Cox regression model. Transwell and nude mouse models were used to examine tumor metastasis in vitro and in vivo, respectively. The relationship between miR-26a-5p and epithelial-mesenchymal transition was also investigated by q-PCR and western blot. RESULTS Strong downregulation of miR-26a-5p was observed in tumor tissues compared to paired adjacent normal tissues. Moreover, patients with low miR-26a-5p expression had a significantly poorer prognosis than those with high expression. The multivariate analysis indicated that miR-26a-5p expression was an independent prognostic indicator. The experimental transwell model and athymic mouse model revealed that miR-26a-5p depressed tumor metastasis in vitro and in vivo, respectively. In addition, the decreased miR-26a-5p level observed in HCC was associated with reduced E-cadherin expression and upregulation of vimentin, which affects the molecular mechanism of EMT. CONCLUSION Downregulation of miR-26a-5p promotes tumor metastasis by targeting EMT and influences the prognosis of HCC patients. Therefore, miR-26a-5p has potential as a new biomarker and therapeutic target.
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Affiliation(s)
- L Chang
- Department of General Surgery, Zhongnan Hospital of Wuhan University, Donghu Road 169, 430071, Wuhan, People's Republic of China
| | - K Li
- Department of General Surgery, Zhongnan Hospital of Wuhan University, Donghu Road 169, 430071, Wuhan, People's Republic of China
| | - T Guo
- Department of General Surgery, Zhongnan Hospital of Wuhan University, Donghu Road 169, 430071, Wuhan, People's Republic of China.
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da Cunha IW, Souza MJL, da Costa WH, Amâncio AM, Fonseca FP, Zequi SDC, Lopes A, Guimarães GC, Soares F. Epithelial-mesenchymal transition (EMT) phenotype at invasion front of squamous cell carcinoma of the penis influences oncological outcomes. Urol Oncol 2016; 34:433.e19-26. [PMID: 27381894 DOI: 10.1016/j.urolonc.2016.05.015] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Revised: 04/29/2016] [Accepted: 05/12/2016] [Indexed: 01/06/2023]
Abstract
OBJECTIVE Our aims were to evaluate epithelial-mesenchymal transition (EMT) as a useful prognostic marker in penile carcinoma (PC), and establish an objective criterion to define EMT in PC specimens. MATERIALS AND METHODS A total of 149 consecutive cases surgically treated for PC were retrospectively selected. E-cadherin (E-CAD) and vimentin immunohistochemical expressions were evaluated. A combined analysis was performed using both markers to determine EMT status. To establish a normal control to E-CAD expression, we included 14 cases from circumcisions from patients without any neoplastic disease and 77 cases of tumor-free margins. The analyses of tumor samples were evaluated in 2 different areas of the tumor. The first one was in the tumor core. The second analyses were performed on the deepest infiltrative edge of the tumor, nominated invasion front. Cases were classified into EMT absent group, partial EMT group and complete EMT group. Overall survival (OS) and cancer-specific survival (CSS) were analyzed. Kaplan-Meier curves and the log-rank test were used. Cox proportional hazards model was used to determine which variables influenced survival. RESULTS Tumor specimens presented a significant loss of expression of E-CAD when compared with normal epithelium. Vimentin expression in more than 10% of tumor cells was observed in 50 cases. EMT status was associated with histologic grade, pattern of invasion, lymph node metastasis, and perineural and vascular invasion. Further, 10-year OS and CSS rates in patients with presence and absence of complete EMT status were 38.0% and 55.6%; and 48.0% and 91.9%, respectively. EMT status significantly affected CSS and OS rates even after patients were grouped based on lymph node involvement status. The presence of complete EMT status was associated with both CSS and OS rates. Patients in the complete EMT group had a higher risk of death from cancer (hazard ratio = 7.6, P<0.001) and overall death (hazard ratio = 3.0, P<0.001). CONCLUSION Our study represents an evidence of the prognostic effect of EMT in PC. We encourage the study of EMT markers in other centers to validate our findings and confirm its importance in such tumors.
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Affiliation(s)
| | | | | | - Alice M Amâncio
- Urology Division, A.C. Camargo Cancer Center, Sao Paulo, Brazil
| | | | | | - Ademar Lopes
- Urology Division, A.C. Camargo Cancer Center, Sao Paulo, Brazil
| | | | - Fernando Soares
- Urology Division, A.C. Camargo Cancer Center, Sao Paulo, Brazil
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Epithelial-to-mesenchymal transition in a virally induced cancer. J Urol 2014; 193:396-7. [PMID: 25447099 DOI: 10.1016/j.juro.2014.11.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/06/2014] [Indexed: 11/23/2022]
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