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β-catenin activation down-regulates cell-cell junction-related genes and induces epithelial-to-mesenchymal transition in colorectal cancers. Sci Rep 2019; 9:18440. [PMID: 31804558 PMCID: PMC6895046 DOI: 10.1038/s41598-019-54890-9] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Accepted: 11/18/2019] [Indexed: 12/30/2022] Open
Abstract
WNT signaling activation in colorectal cancers (CRCs) occurs through APC inactivation or β-catenin mutations. Both processes promote β-catenin nuclear accumulation, which up-regulates epithelial-to-mesenchymal transition (EMT). We investigated β-catenin localization, transcriptome, and phenotypic differences of HCT116 cells containing a wild-type (HCT116-WT) or mutant β-catenin allele (HCT116-MT), or parental cells with both WT and mutant alleles (HCT116-P). We then analyzed β-catenin expression and associated phenotypes in CRC tissues. Wild-type β-catenin showed membranous localization, whereas mutant showed nuclear localization; both nuclear and non-nuclear localization were observed in HCT116-P. Microarray analysis revealed down-regulation of Claudin-7 and E-cadherin in HCT116-MT vs. HCT116-WT. Claudin-7 was also down-regulated in HCT116-P vs. HCT116-WT without E-cadherin dysregulation. We found that ZEB1 is a critical EMT factor for mutant β-catenin-mediated loss of E-cadherin and Claudin-7 in HCT116-P and HCT116-MT cells. We also demonstrated that E-cadherin binds to both WT and mutant β-catenin, and loss of E-cadherin releases β-catenin from the cell membrane and leads to its degradation. Alteration of Claudin-7, as well as both Claudin-7 and E-cadherin respectively caused tight junction (TJ) impairment in HCT116-P, and dual loss of TJs and adherens junctions (AJs) in HCT116-MT. TJ loss increased cell motility, and subsequent AJ loss further up-regulated that. Immunohistochemistry analysis of 101 CRCs revealed high (14.9%), low (52.5%), and undetectable (32.6%) β-catenin nuclear expression, and high β-catenin nuclear expression was significantly correlated with overall survival of CRC patients (P = 0.009). Our findings suggest that β-catenin activation induces EMT progression by modifying cell-cell junctions, and thereby contributes to CRC aggressiveness.
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Yuan K, Xie K, Lan T, Xu L, Chen X, Li X, Liao M, Li J, Huang J, Zeng Y, Wu H. TXNDC12 promotes EMT and metastasis of hepatocellular carcinoma cells via activation of β-catenin. Cell Death Differ 2019; 27:1355-1368. [PMID: 31570854 PMCID: PMC7206186 DOI: 10.1038/s41418-019-0421-7] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2019] [Revised: 07/23/2019] [Accepted: 09/04/2019] [Indexed: 02/05/2023] Open
Abstract
Metastasis is one of the main contributors to the poor prognosis of hepatocellular carcinoma (HCC). However, the underlying mechanism of HCC metastasis remains largely unknown. Here, we showed that TXNDC12, a thioredoxin-like protein, was upregulated in highly metastatic HCC cell lines as well as in portal vein tumor thrombus and lung metastasis tissues of HCC patients. We found that the enforced expression of TXNDC12 promoted metastasis both in vitro and in vivo. Subsequent mechanistic investigations revealed that TXNDC12 promoted metastasis through upregulation of the ZEB1-mediated epithelial-mesenchymal transition (EMT) process. We subsequently showed that TXNDC12 overexpression stimulated the nuclear translocation and activation of β-catenin, a positive transcriptional regulator of ZEB1. Accordingly, we found that TXNDC12 interacted with β-catenin and that the thioredoxin-like domain of TXNDC12 was essential for the interaction between TXNDC12 and β-catenin as well as for TXNDC12-mediated β-catenin activation. Moreover, high levels of TXNDC12 in clinical HCC tissues correlated with elevated nuclear β-catenin levels and predicted worse overall and disease-free survival. In summary, our study demonstrated that TXNDC12 could activate β-catenin via protein-protein interaction and promote ZEB1-mediated EMT and HCC metastasis.
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Affiliation(s)
- Kefei Yuan
- Department of Liver Surgery & Liver Transplantation, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, China.,Laboratory of Liver Surgery, West China Hospital, Sichuan University, Chengdu, China
| | - Kunlin Xie
- Department of Liver Surgery & Liver Transplantation, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, China
| | - Tian Lan
- Department of Liver Surgery & Liver Transplantation, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, China
| | - Lin Xu
- Department of Liver Surgery & Liver Transplantation, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, China.,Laboratory of Liver Surgery, West China Hospital, Sichuan University, Chengdu, China
| | - Xiangzheng Chen
- Department of Liver Surgery & Liver Transplantation, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, China.,Laboratory of Liver Surgery, West China Hospital, Sichuan University, Chengdu, China
| | - Xuefeng Li
- Shenzhen Luohu People's Hospital, The Third Affiliated Hospital of Shenzhen University, Shenzhen, Guangdong, China
| | - Mingheng Liao
- Department of Liver Surgery & Liver Transplantation, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, China
| | - Jiaxin Li
- Department of Liver Surgery & Liver Transplantation, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, China
| | - Jiwei Huang
- Department of Liver Surgery & Liver Transplantation, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, China
| | - Yong Zeng
- Department of Liver Surgery & Liver Transplantation, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, China. .,Laboratory of Liver Surgery, West China Hospital, Sichuan University, Chengdu, China.
| | - Hong Wu
- Department of Liver Surgery & Liver Transplantation, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, China. .,Laboratory of Liver Surgery, West China Hospital, Sichuan University, Chengdu, China.
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Tumor-Derived Exosomes Mediate the Instability of Cadherins and Promote Tumor Progression. Int J Mol Sci 2019; 20:ijms20153652. [PMID: 31357383 PMCID: PMC6696460 DOI: 10.3390/ijms20153652] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2019] [Revised: 07/24/2019] [Accepted: 07/24/2019] [Indexed: 12/12/2022] Open
Abstract
Cadherins, including E-cadherin, N-cadherin, VE-cadherin, etc., are important adhesion molecules mediating intercellular junctions. The abnormal expression of cadherins is often associated with tumor development and progression. Epithelial–mesenchymal transition (EMT) is the most important step in the metastasis cascade and is accompanied by altered expression of cadherins. Recent studies reveal that as a cargo for intercellular communication, exosomes—one type of extracellular vesicles that can be secreted by tumor cells—are involved in a variety of physiological and pathological processes, especially in tumor metastasis. Tumor-derived exosomes play a crucial role in mediating the cadherin instability in recipient cells by transferring bioactive molecules (oncogenic microRNAs (miRNAs) and long non-coding RNAs (lncRNAs), EMT-related proteins, and others), modulating their local and distant microenvironment, and facilitating cancer metastasis. In turn, aberrant expression of cadherins in carcinoma cells can also affect the biogenesis and release of exosomes. Therefore, we summarize the current research on the crosstalk between tumor-derived exosomes and aberrant cadherin signals to reveal the unique role of exosomes in cancer progression.
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Hu MN, Lv W, Hu RY, Si YF, Lu XW, Deng YJ, Deng H. Synchronous multiple primary gastrointestinal cancers with CDH1 mutations: A case report. World J Clin Cases 2019; 7:1703-1710. [PMID: 31367630 PMCID: PMC6658371 DOI: 10.12998/wjcc.v7.i13.1703] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2019] [Revised: 04/22/2019] [Accepted: 05/03/2019] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Synchronous multiple primary cancers (SMPC) mean two or more malignant tumors occurring simultaneously and with different origins no matter what types they are or where they are located. The carcinogenesis of SMPC often involves variations of some specific genes. However, the correlation between CDH1 mutations and synchronous multiple primary gastrointestinal cancers is largely unknown.
CASE SUMMARY A 62-year-old woman had sustained abdominal pain for one week and visited our hospital. Gastrointestinal endoscopy revealed multiple small polypoid lesions in both the stomach and colorectum. Computed tomography and laboratory results were within normal limits. Pathological evaluation confirmed signet ring cell carcinoma without obvious metastatic evidence. Malignant cells showed negativity for E-cadherin and positivity for β-catenin in the cytoplasm and nucleus. DNA sequencing performed on paraffin-embedded tissue revealed two exactly coincident alterations in CDH1, C.57T>G and C.1418A>T.
CONCLUSION This case suggests that the combination of CDH1 mutations and WNT/β-catenin signaling activation contributes to the carcinogenesis of gastrointestinal SMPC.
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Affiliation(s)
- Mu-Ni Hu
- Medical College, Nanchang University, Nanchang 330006, Jiangxi Province, China
| | - Wei Lv
- Medical College, Nanchang University, Nanchang 330006, Jiangxi Province, China
| | - Rui-Yue Hu
- Department of Pharmacology, Jiangxi Provincial People’s Hospital, Nanchang 330006, Jiangxi Province, China
| | - Yi-Fan Si
- Department of Gastroenterology, the Fourth Affiliated Hospital of Nanchang University, Nanchang 330003, Jiangxi Province, China
| | - Xiao-Wen Lu
- Department of Radiology, the Fourth Affiliated Hospital of Nanchang University, Nanchang 330003, Jiangxi Province, China
| | - Yan-Juan Deng
- Department of Pathology, the Fourth Affiliated Hospital of Nanchang University, Nanchang 330003, Jiangxi Province, China
| | - Huan Deng
- Department of Pathology, the Fourth Affiliated Hospital of Nanchang University, Nanchang 330003, Jiangxi Province, China
- Molecular Medicine and Genetics Center, the Fourth Affiliated Hospital of Nanchang University, Nanchang 330003, Jiangxi Province, China
- Renmin Institute of Forensic Medicine in Jiangxi, Nanchang 330006, Jiangxi Province, China
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He D, Ma Z, Fang C, Ding J, Yang W, Chen P, Huang L, Wang C, Yu Y, Yang L, Li Y, Zhou Z. Pseudophosphatase STYX promotes tumor growth and metastasis by inhibiting FBXW7 function in colorectal cancer. Cancer Lett 2019; 454:53-65. [PMID: 30981757 DOI: 10.1016/j.canlet.2019.04.014] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2018] [Revised: 03/14/2019] [Accepted: 04/09/2019] [Indexed: 02/05/2023]
Abstract
Serine/threonine/tyrosine interacting protein (STYX), a member of protein tyrosine phosphatases, has recently been reported as a potential oncogene. However, the role of STYX in colorectal cancer (CRC) remains unknown. In this study, we found that STYX was highly expressed in CRC tissues and closely correlated with tumor development and survival of CRC patients. In vitro studies showed that overexpression of STYX promoted proliferation, migration, invasion, and epithelial-mesenchymal transition (EMT) and inhibited apoptosis in CRC cells, while STYX knockdown had the opposite effects. Consistently, in vivo experiments showed that overexpression of STYX promoted tumor growth and lung metastasis. Mechanically, STYX bound to the F-box and WD repeat domain-containing7 (FBXW7) protein and inhibited its function. Co-regulation of STYX and FBXW7 expression reversed the biological changes mediated by regulation of STYX expression alone in CRC cells. Additionally, FBXW7 expression was negatively associated with STYX expression in CRC tissues, and low STYX levels accompanying high FBXW7 levels predicted favorable prognosis of CRC patients. In conclusion, our results suggest that STYX plays an oncogenic role by inhibiting FBXW7 and represents a potential therapeutic target and prognostic biomarker in CRC.
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Affiliation(s)
- Diao He
- Department of Gastrointestinal Surgery, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China; Institute of Digestive Surgery, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Zida Ma
- Department of Gastrointestinal Surgery, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China; Institute of Digestive Surgery, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Chao Fang
- Department of Gastrointestinal Surgery, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China; Institute of Digestive Surgery, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Jingjing Ding
- Department of Gastrointestinal Surgery, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Wenming Yang
- Department of Gastrointestinal Surgery, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Peng Chen
- Department of Gastrointestinal Surgery, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Libin Huang
- Department of Gastrointestinal Surgery, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China; Institute of Digestive Surgery, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Cun Wang
- Department of Gastrointestinal Surgery, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Yongyang Yu
- Department of Gastrointestinal Surgery, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Lie Yang
- Department of Gastrointestinal Surgery, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China; Institute of Digestive Surgery, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China.
| | - Yuan Li
- Institute of Digestive Surgery, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Zongguang Zhou
- Department of Gastrointestinal Surgery, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China; Institute of Digestive Surgery, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China.
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56
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Zhang S, Li D, Jiao GJ, Wang HL, Yan TB. miR-185 suppresses progression of Ewing's sarcoma via inhibiting the PI3K/AKT and Wnt/β-catenin pathways. Onco Targets Ther 2018; 11:7967-7977. [PMID: 30519038 PMCID: PMC6235341 DOI: 10.2147/ott.s167771] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Background miRNAs are confirmed to play essential roles in tumorigenesis and progression of cancers, including Ewing's sarcoma. miR-185 has been reported to be downregulated in some tumors, whereas the role of miR-185 in Ewing's sarcoma remains unclear. Purpose The objective of this study was to investigate the role of miR-185 in the progression and metastasis of Ewing's sarcoma and explore the associated mechanism. Materials and methods Ewing's sarcoma cell line RD-ES was transfected with pCMV-MIR-miR185 vector to upregulate the expression of miR-185. Cell Counting Kit 8 and colony formation assays were used to assess the effect of miR-185 on cell proliferation. The effect of miR-185 on cell migration and invasion was detected by transwell assay. Flow cytometry assay was performed to detect apoptosis rate of RD-ES cells. The protein levels of apoptosis-related proteins was determined using Western blot assay or immunohistochemistry assay. Dual-luciferase reporter assay was used to validate the regulation between miR-185 and its target gene. Results Upregulation of miR-185 caused significant inhibition on cell growth capacity, migration and invasion of Ewing's sarcoma cell RD-ES. Besides, upregulation of miR-185 was observed to accelerate cell apoptosis in a mitochondrial pathway through regulating Bcl-2/Bax, Caspase 3, and Caspase 9 in Ewing's sarcoma in vitro. Moreover, upregulation of miR-185 was found to suppress the PI3K/Akt/mTOR and Wnt/β-catenin pathways in RD-ES cells. Furthermore, we identified that E2F6 was a target gene for miR-185, and the suppression on cell proliferation caused by overexpression of miR-185 was significantly rescued by the upregulation of E2F6 in RD-ES cells. Conclusion miR-185 is involved in cell growth, motility and survival of Ewing's sarcoma as a tumor suppressor via suppressing PI3K/Akt/mTOR and Wnt/β-catenin pathways and targeting E2F6.
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Affiliation(s)
- Shuai Zhang
- Department of Orthopedics, Qilu Hospital of Shandong University, Jinan, Shandong Province, China,
| | - Dong Li
- Department of Orthopedics, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong Province, China
| | - Guang-Jun Jiao
- Department of Orthopedics, Qilu Hospital of Shandong University, Jinan, Shandong Province, China,
| | - Hong-Liang Wang
- Department of Orthopedics, Qilu Hospital of Shandong University, Jinan, Shandong Province, China,
| | - Ting-Bin Yan
- Department of Orthopedics, Qilu Hospital of Shandong University, Jinan, Shandong Province, China,
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57
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Wang Z, Gu D, Sheng L, Cai J. Protective Effect of Anthocyanin on Paraquat-Induced Apoptosis and Epithelial-Mesenchymal Transition in Alveolar Type II Cells. Med Sci Monit 2018; 24:7980-7987. [PMID: 30403199 PMCID: PMC6234756 DOI: 10.12659/msm.910730] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Paraquat (PQ) can over-accumulate in alveolar epithelial cells. Anthocyanin (An) can exert anti-oxidative properties. The role of An in PQ-induced toxicity is unclear, so we aimed to explore whether An could inhibit epithelial mesenchymal transition (EMT) induced by PQ in alveolar cells. MATERIAL AND METHODS lveolar epithelial cells were treated with PQ and An with concentration gradient for 12, 24, and 48 h. The cell viability, ROS level, and apoptosis rate were determined using the Cell Counting Kit-8 (CCK-8) and flow cytometry, respectively. The lactate dehydrogenase (LDH) leakage, methane dicarboxylic aldehyde (MDA) level, glutathione peroxidase (GPx), and superoxide dismutase (SOD) activities were determined by spectrophotometric method. The mRNA and protein expressions were detected using quantitative real-time PCR (qPCR) and Western blot, respectively. RESULTS An reduced the PQ-induced apoptosis in a dose-dependent manner. Moreover, An reduced the ratio of Bax/Bcl-2 to ROS level. We found that An suppressed the activity of LDH and MDA and improved SOD and GPX levels. Additionally, the level of PQ-induced E-cadherin was decreased by An while the expressions of vimentin, α-smooth muscle actin (α-SMA), and collagens type I (col-I) were increased. Furthermore, An inhibited the levels of transforming growth factor β1 (TGF-β1) and activin receptor-like kinase 5 (ALK5) and reduced the phosphorylation of smad2. CONCLUSIONS Our study shows newly discovered effects of anthocyanidins on EMT and supports their chemopreventive effects in paraquat-induced apoptosis in alveolar type II cells.
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Affiliation(s)
- Zhihua Wang
- Emergency Department of Traumatology, Shanghai Pudong Hospital, Shanghai, China (mainland)
| | - Dongming Gu
- Emergency Department of Traumatology, Shanghai Pudong Hospital, Shanghai, China (mainland)
| | - Lezhi Sheng
- Emergency Department of Traumatology, Shanghai Pudong Hospital, Shanghai, China (mainland)
| | - Jinfang Cai
- Emergency Department of Traumatology, Shanghai Pudong Hospital, Shanghai, China (mainland)
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Zhou J, Liu H, Zhang L, Liu X, Zhang C, Wang Y, He Q, Zhang Y, Li Y, Chen Q, Zhang L, Wang K, Bu Y, Lei Y. DJ-1 promotes colorectal cancer progression through activating PLAGL2/Wnt/BMP4 axis. Cell Death Dis 2018; 9:865. [PMID: 30158634 PMCID: PMC6115399 DOI: 10.1038/s41419-018-0883-4] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Revised: 07/09/2018] [Accepted: 07/12/2018] [Indexed: 02/05/2023]
Abstract
Metastasis remains a big barrier for the clinical treatment of colorectal cancer (CRC). Our previous proteomics analysis identified DJ-1 as a potential metastasis biomarker of CRC. In this study, we found that DJ-1 was upregulated in CRC. The levels of DJ-1 were closely correlated with the depths of invasion and predicted patient outcome. Enforced expression of DJ-1 could enhance CRC proliferation and metastasis in vitro and in vivo by stimulating Wnt-β-catenin signaling. Specifically, DJ-1-induced β-catenin nuclear translocation stimulated TCF transcription activity, which promoted BMP4 expression for CRC cell migration and invasion, and elevated CCND1 expression for CRC cell proliferation, respectively. Furthermore, DJ-1-induced Wnt signaling activation was dependent on PLAGL2 expression. In conclusion, our study demonstrates that DJ-1 can promote CRC metastasis by activating PLAGL2-Wnt-BMP4 axis, suggesting novel therapeutic opportunities for postoperative adjuvant therapy in CRC patients.
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Affiliation(s)
- Jing Zhou
- Department of Biochemistry and Molecular Biology, and Molecular Medicine and Cancer Research Center, Chongqing Medical University, 400016, Chongqing, China.,State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University and Collaborative Innovation Center for Biotherapy, 610041, Chengdu, China
| | - Hao Liu
- Department of Biochemistry and Molecular Biology, and Molecular Medicine and Cancer Research Center, Chongqing Medical University, 400016, Chongqing, China
| | - Lian Zhang
- Department of Biochemistry and Molecular Biology, and Molecular Medicine and Cancer Research Center, Chongqing Medical University, 400016, Chongqing, China
| | - Xin Liu
- Department of Biochemistry and Molecular Biology, and Molecular Medicine and Cancer Research Center, Chongqing Medical University, 400016, Chongqing, China
| | - Chundong Zhang
- Department of Biochemistry and Molecular Biology, and Molecular Medicine and Cancer Research Center, Chongqing Medical University, 400016, Chongqing, China
| | - Yitao Wang
- Department of Biochemistry and Molecular Biology, and Molecular Medicine and Cancer Research Center, Chongqing Medical University, 400016, Chongqing, China
| | - Qing He
- Department of Biochemistry and Molecular Biology, and Molecular Medicine and Cancer Research Center, Chongqing Medical University, 400016, Chongqing, China
| | - Ying Zhang
- Department of Biochemistry and Molecular Biology, and Molecular Medicine and Cancer Research Center, Chongqing Medical University, 400016, Chongqing, China
| | - Yi Li
- Department of Biochemistry and Molecular Biology, and Molecular Medicine and Cancer Research Center, Chongqing Medical University, 400016, Chongqing, China
| | - Quanmei Chen
- Department of Biochemistry and Molecular Biology, and Molecular Medicine and Cancer Research Center, Chongqing Medical University, 400016, Chongqing, China
| | - Lu Zhang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University and Collaborative Innovation Center for Biotherapy, 610041, Chengdu, China
| | - Kui Wang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University and Collaborative Innovation Center for Biotherapy, 610041, Chengdu, China
| | - Youquan Bu
- Department of Biochemistry and Molecular Biology, and Molecular Medicine and Cancer Research Center, Chongqing Medical University, 400016, Chongqing, China
| | - Yunlong Lei
- Department of Biochemistry and Molecular Biology, and Molecular Medicine and Cancer Research Center, Chongqing Medical University, 400016, Chongqing, China.
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Mao Q, Zhang L, Zhang Y, Dong G, Yang Y, Xia W, Chen B, Ma W, Hu J, Jiang F, Xu L. A network-based signature to predict the survival of non-smoking lung adenocarcinoma. Cancer Manag Res 2018; 10:2683-2693. [PMID: 30147367 PMCID: PMC6101016 DOI: 10.2147/cmar.s163918] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Background A substantial increase in the number of non-smoking lung adenocarcinoma (LAC) patients has been drawing extensive attention in the past decade. However, effective biomarkers, which could guide the precise treatment, are still limited for identifying high-risk patients. Here, we provide a network-based signature to predict the survival of non-smoking LAC. Materials and methods Gene expression profiles were downloaded from The Cancer Genome Atlas and Gene Expression Omnibus. Significant gene co-expression networks and hub genes were identified by Weighted Gene Co-expression Network Analysis. Potential mechanisms and pathways of co-expression networks were analyzed by Gene Ontology. The predictive signature was constructed by penalized Cox regression analysis and tested in two independent datasets. Results Two distinct co-expression modules were significantly correlated with the non-smoking status across 4 Gene Expression Omnibus datasets. Gene Ontology revealed that nuclear division and cell cycle pathways were main mechanisms of the blue module and that genes in the turquoise module were involved in lymphocyte activation and cell adhesion pathways. Seventeen genes were selected from hub genes at an optimal lambda value and built the prognostic signature. The prognostic signature distinguished the survival of non-smoking LAC (training: hazard ratio [HR]=3.696, 95% CI: 2.025–6.748, P<0.001; testing: HR=2.9, 95% CI: 1.322–6.789, P=0.006; HR=2.78, 95% CI: 1.658–6.654, P=0.022) and had moderate predictive abilities in the training and validation datasets. Conclusion The prognostic signature is a promising predictor of non-smoking LAC patients, which might benefit clinical practice and precision therapeutic management.
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Affiliation(s)
- Qixing Mao
- Department of Thoracic Surgery, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, Nanjing Medical University Affiliated Cancer Hospital, Nanjing, China, , .,The Fourth Clinical College of Nanjing Medical University, Nanjing, China.,Jiangsu Key Laboratory of Molecular and Translational Cancer Research, Nanjing Medical University Affiliated Cancer Hospital, Cancer Institute of Jiangsu Province, Nanjing, China, , .,Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Louqian Zhang
- Department of Thoracic Surgery, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, Nanjing Medical University Affiliated Cancer Hospital, Nanjing, China, , .,The Fourth Clinical College of Nanjing Medical University, Nanjing, China.,Jiangsu Key Laboratory of Molecular and Translational Cancer Research, Nanjing Medical University Affiliated Cancer Hospital, Cancer Institute of Jiangsu Province, Nanjing, China, ,
| | - Yi Zhang
- Department of Thoracic Surgery, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, Nanjing Medical University Affiliated Cancer Hospital, Nanjing, China, ,
| | - Gaochao Dong
- Department of Thoracic Surgery, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, Nanjing Medical University Affiliated Cancer Hospital, Nanjing, China, , .,Jiangsu Key Laboratory of Molecular and Translational Cancer Research, Nanjing Medical University Affiliated Cancer Hospital, Cancer Institute of Jiangsu Province, Nanjing, China, ,
| | - Yao Yang
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Wenjie Xia
- Department of Thoracic Surgery, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, Nanjing Medical University Affiliated Cancer Hospital, Nanjing, China, , .,The Fourth Clinical College of Nanjing Medical University, Nanjing, China.,Jiangsu Key Laboratory of Molecular and Translational Cancer Research, Nanjing Medical University Affiliated Cancer Hospital, Cancer Institute of Jiangsu Province, Nanjing, China, , .,Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Bing Chen
- Department of Thoracic Surgery, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, Nanjing Medical University Affiliated Cancer Hospital, Nanjing, China, , .,The Fourth Clinical College of Nanjing Medical University, Nanjing, China.,Jiangsu Key Laboratory of Molecular and Translational Cancer Research, Nanjing Medical University Affiliated Cancer Hospital, Cancer Institute of Jiangsu Province, Nanjing, China, ,
| | - Weidong Ma
- Department of Thoracic Surgery, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, Nanjing Medical University Affiliated Cancer Hospital, Nanjing, China, , .,The Fourth Clinical College of Nanjing Medical University, Nanjing, China.,Jiangsu Key Laboratory of Molecular and Translational Cancer Research, Nanjing Medical University Affiliated Cancer Hospital, Cancer Institute of Jiangsu Province, Nanjing, China, ,
| | - Jianzhong Hu
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Feng Jiang
- Department of Thoracic Surgery, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, Nanjing Medical University Affiliated Cancer Hospital, Nanjing, China, , .,Jiangsu Key Laboratory of Molecular and Translational Cancer Research, Nanjing Medical University Affiliated Cancer Hospital, Cancer Institute of Jiangsu Province, Nanjing, China, ,
| | - Lin Xu
- Department of Thoracic Surgery, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, Nanjing Medical University Affiliated Cancer Hospital, Nanjing, China, , .,Jiangsu Key Laboratory of Molecular and Translational Cancer Research, Nanjing Medical University Affiliated Cancer Hospital, Cancer Institute of Jiangsu Province, Nanjing, China, ,
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60
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Ma CT, Luo HS, Gao F, Tang QC, Chen W. Fusobacterium nucleatum promotes the progression of colorectal cancer by interacting with E-cadherin. Oncol Lett 2018; 16:2606-2612. [PMID: 30013655 PMCID: PMC6036566 DOI: 10.3892/ol.2018.8947] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Accepted: 12/15/2017] [Indexed: 02/06/2023] Open
Abstract
Increasing evidence suggests that Fusobacterium nucleatum is involved in colorectal carcinogenesis. Previous studies have explored whether F. nucleatum may trigger colonic epithelial-mesenchymal transition. The results of the present study demonstrated that F. nucleatum enhances the proliferation and invasion of NCM460 cells compared with that of normal control and DH5α cells. Furthermore, F. nucleatum significantly increased the phosphorylation of p65 (a subunit of nuclear factor-κB), as well as the expression of interleukin (IL)-6, IL-1β and matrix metalloproteinase (MMP)-13. Additionally, F. nucleatum infection did not affect the expression levels of epithelial (E-)cadherin and β-catenin. E-cadherin knockdown in NCM460 cells did not induce the activation of inflammatory responses in response to F. nucleatum infection, whereas it increased inflammation in response to β-catenin silencing. F. nucleatum infection could not increase the proportion of cells at S phase when E-cadherin was silenced. Nevertheless, F. nucleatum infection enhanced the proportion of NCM460 cells at S phase when transfected with small interfering RNAs to knock down β-catenin expression. In conclusion, the results of the present study demonstrated that F. nucleatum infection interacted with E-cadherin instead of β-catenin, which in turn enhances the malignant phenotype of colorectal cancer cells.
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Affiliation(s)
- Chun-Ting Ma
- Department of Gastroenterology, RenMin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - He-Sheng Luo
- Department of Gastroenterology, RenMin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
- Correspondence to: Dr He-Sheng Luo, Department of Gastroenterology, RenMin Hospital of Wuhan University, 9 Zhang Zhidong Road, Wuhan, Hubei 430060, P.R. China, E-mail:
| | - Feng Gao
- Department of Gastroenterology, The People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi, Xinjiang 8320001, P.R. China
| | - Qin-Cai Tang
- Department of Gastroenterology, RenMin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Wei Chen
- Department of Gastroenterology, RenMin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
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61
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Xu Y, Liu X, Zhang H, Zhu Z, Wu X, Wu X, Li S, Song L, Xu X. Overexpression of HES6 has prognostic value and promotes metastasis via the Wnt/β-catenin signaling pathway in colorectal cancer. Oncol Rep 2018; 40:1261-1274. [PMID: 30015909 PMCID: PMC6072391 DOI: 10.3892/or.2018.6539] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Accepted: 06/18/2018] [Indexed: 01/15/2023] Open
Abstract
HES6 is a member of the hairy-enhancer of the split homolog family, which has been implicated in oncogenesis and cancer progression in a variety of human cancers, including prostate and breast cancer. However, its clinical significance and biological role in colorectal cancer (CRC) remain unclear. In the present study, the expression of HES6 was significantly upregulated in CRC cell lines and CRC tissues at both the mRNA and protein levels. The present study also reported high expression of HES6 in 138/213 (64.8%) paraffin-embedded archived CRC specimens. HES6 expression was significantly correlated with T classification (P<0.001), N classification (P=0.020), and distant metastasis (P<0.001). Patients with higher HES6 expression levels exhibited a reduced overall survival (P<0.001). In addition, a multivariate analysis revealed that the expression of HES6 may be a novel prognostic marker for the survival of patients with CRC. Furthermore, the present study demonstrated that ectopic expression of HES6 enhanced the migration and invasive abilities of CRC cells. These abilities were significantly inhibited upon knockdown of endogenous HES6 expression by specific short hairpin RNAs. Additionally, the present study reported that the effects of HES6 on metastasis may be associated with the activation of the Wnt/β-catenin signaling pathway. Collectively, the findings of the present study revealed that overexpression of HES6 played a key role in the progression of CRC, leading to a poor prognosis and clinical outcome.
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Affiliation(s)
- Yuandong Xu
- Department of Gastrointestinal Surgery, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510150, P.R. China
| | - Xuejuan Liu
- Department of Gastrointestinal Surgery, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510150, P.R. China
| | - Huizhong Zhang
- Department of Pathology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangzhou, Guangdong 510060, P.R. China
| | - Ziyuan Zhu
- Department of Gastrointestinal Surgery, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510150, P.R. China
| | - Xianqiu Wu
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong 510060, P.R. China
| | - Xiaobing Wu
- Department of Gastrointestinal Surgery, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510150, P.R. China
| | - Shuling Li
- Department of Gastrointestinal Surgery, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510150, P.R. China
| | - Libing Song
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong 510060, P.R. China
| | - Xuehu Xu
- Department of Gastrointestinal Surgery, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510150, P.R. China
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62
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Liu X, Sun Z, Deng J, Liu J, Ma K, Si Y, Zhang T, Feng T, Liu Y, Tan Y. Polyphyllin I inhibits invasion and epithelial-mesenchymal transition via CIP2A/PP2A/ERK signaling in prostate cancer. Int J Oncol 2018; 53:1279-1288. [PMID: 29956727 DOI: 10.3892/ijo.2018.4464] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2018] [Accepted: 06/01/2018] [Indexed: 11/05/2022] Open
Abstract
Polyphyllin I (PPI) is a natural compound extracted from the rhizomes of Paris polyphylla and has been used to treat fevers and headaches in China. In the present study, the antitumor activity of PPI in prostate cancer (PC) cells was evaluated. At low doses, PPI decreased proliferation, invasion and epithelial-mesenchymal transition (EMT) in PC cells. PPI decreased the expression of matrix metalloproteinase 7 (MMP7), an enzyme that is critical for tumor metastasis. PPI also decreased the expression of Snail and vimentin, which are EMT-associated factors. Additionally, PPI suppressed AP-1 transcriptional activity and AP-1 binding to the MMP7 and vimentin promoters. The results demonstrated that PPI downregulated the phosphorylation of extracellular signaling‑related kinase (ERK), which is upstream modulator of AP-1. The results of the present study demonstrated that PPI may inhibit the cancerous inhibitor of protein phosphatase 2A (CIP2A)/protein phosphatase 2A (PP2A)/ERK axis, downregulate the expression of MMP7, vimentin, and Snail, and suppress tumor invasion and EMT. A PC xenograft mouse model was employed and the results revealed that PPI may decrease tumor growth and weight. Additionally, PPI may inhibit proliferating cell nuclear antigen expression and CIP2A/PP2A/ERK signaling pathway in PPI-treated tumors. Therefore, the results of the present study suggest that PPI may suppress the growth, invasion and EMT of PC cells via inhibition of CIP2A/PP2A/ERK signaling axis. As a result, PPI may be a novel target for the treatment of PC.
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Affiliation(s)
- Xuewen Liu
- School of Basic Sciences, Hubei University of Medicine, Shiyan, Hubei 442000, P.R. China
| | - Zhiting Sun
- Laboratory of Molecular Target Therapy of Cancer, Institute of Basic Medical Sciences, Hubei University of Medicine, Shiyan, Hubei 442000, P.R. China
| | - Jikun Deng
- School of Basic Sciences, Hubei University of Medicine, Shiyan, Hubei 442000, P.R. China
| | - Jun Liu
- School of Basic Sciences, Hubei University of Medicine, Shiyan, Hubei 442000, P.R. China
| | - Kaihuai Ma
- School of Basic Sciences, Hubei University of Medicine, Shiyan, Hubei 442000, P.R. China
| | - Yuan Si
- School of Basic Sciences, Hubei University of Medicine, Shiyan, Hubei 442000, P.R. China
| | - Te Zhang
- Laboratory of Molecular Target Therapy of Cancer, Institute of Basic Medical Sciences, Hubei University of Medicine, Shiyan, Hubei 442000, P.R. China
| | - Tingting Feng
- School of Basic Medical Sciences, Anhui Medical University, Hefei, Anhui 230032, P.R. China
| | - Ying Liu
- School of Basic Sciences, Hubei University of Medicine, Shiyan, Hubei 442000, P.R. China
| | - Yan Tan
- School of Basic Sciences, Hubei University of Medicine, Shiyan, Hubei 442000, P.R. China
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63
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Jaiswal RK, Kumar P, Kumar M, Yadava PK. hTERT promotes tumor progression by enhancing TSPAN13 expression in osteosarcoma cells. Mol Carcinog 2018; 57:1038-1054. [PMID: 29722072 DOI: 10.1002/mc.22824] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Revised: 04/06/2018] [Accepted: 04/14/2018] [Indexed: 01/11/2023]
Abstract
Telomerase complex maintains the length of the telome, cbre, and protects erosion of the physical ends of the eukaryotic chromosome in all actively dividing cells including cancer cells. Telomerase activation extends the lifespan of cells in culture by maintaining the length of the telomere. Compared to terminally differentiated somatic cells, telomerase activity remains high in over 90% of cancer cells. It has now become clear that the role of telomerase is much more complex than just telomere lengthening. The remaining 10% of cancers deploy ALT (alternative lengthening of telomeres) pathway to maintain telomere length. Telomerase inhibitors offer a good therapeutic option. Also, telomerase-associated molecules can be targeted provided their roles are clearly established. In any case, it is necessary to understand the major role of telomerase in cancer cells. Many studies have already been done to explore gene profiling of a telomerase positive cell by knocking down expression of hTERT (telomerase reverse transcriptase). To complement these studies, we performed global gene profiling of a telomerase negative cell by ectopically expressing hTERT and studied changes in the global gene expression patterns. Analysis of microarray data for telomerase negative cells ectopically expressing telomerase showed 76 differentially regulated genes, out of which 39 genes were upregulated, and 37 were downregulated. Three upregulated genes such as TSPAN13, HMGCS2, DLX5, and three downregulated genes like DHRS2, CRYAB, and PDLIM1 were validated by real-time PCR. Knocking down of TSAPN13 in hTERT overexpressing U2OS cells enhanced the apoptosis of the cells. TSPAN13 knockdown in these cells suppressed mesenchymal properties and enhanced epithelial character.
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Affiliation(s)
- Rishi K Jaiswal
- Applied Molecular Biology Laboratory, School of Life Sciences, Jawaharlal Nehru University, New Delhi, India
| | - Pramod Kumar
- Applied Molecular Biology Laboratory, School of Life Sciences, Jawaharlal Nehru University, New Delhi, India.,Department of Reproductive Biology, All India Institute of Medical Sciences, New Delhi, India
| | - Manoj Kumar
- Applied Molecular Biology Laboratory, School of Life Sciences, Jawaharlal Nehru University, New Delhi, India
| | - Pramod K Yadava
- Applied Molecular Biology Laboratory, School of Life Sciences, Jawaharlal Nehru University, New Delhi, India
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64
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Li C, Liu J, Zhang Q, Cui K, Ge Q, Wang C, Chen Z. Upregulation of E‑cadherin expression mediated by a novel dsRNA suppresses the growth and metastasis of bladder cancer cells by inhibiting β-catenin/TCF target genes. Int J Oncol 2018; 52:1815-1826. [PMID: 29620261 PMCID: PMC5919711 DOI: 10.3892/ijo.2018.4346] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2017] [Accepted: 03/21/2018] [Indexed: 01/03/2023] Open
Abstract
Low expression levels of E-cadherin are correlated with poor prognosis in patients with bladder cancer (BCa). A small activating RNA (saRNA) targeting a specific promoter region can activate gene expression. In the present study, two small double-stranded RNAs (dsRNAs) targeting the promoter region of human E-cadherin were designed and synthesized, and the regulatory role of saRNAs in E-cadherin expression was investigated. The results of reverse transcription-quantitative polymerase chain reaction and western blotting demonstrated that transfection of dsEcad-346 into the BCa cell lines T24 and 5637 significantly activated E-cadherin expression. Furthermore, transfection of dsEcad-346 and miR-373 induced cell cycle arrest in G0/G1 phase, promoted apoptosis and significantly inhibited migration and invasion of BCa cells. Results of immunofluorescence and western blotting indicated that β-catenin was redistributed from the nucleus to the cell membrane following transfection of dsEcad-346 and miR-373. Additionally, the expression of β-catenin/T-cell factor complex (TCF) target genes (c-MYC, matrix metallopeptidase 2, cyclin D1) was suppressed following transfection of BCa cells with saRNA. Silencing of E-cadherin expression blocked the inhibitory effect of dsEcad-346 and miR-373 on BCa cells. In conclusion, a novel designed dsEcad-346 can activate the expression of E-cadherin in BCa cells. saRNA-mediated activation of E-cadherin expression inhibited the growth and metastasis of BCa cells by promoting the redistribution of β-catenin from nucleus to cell membrane and inhibiting the β-catenin/TCF target genes.
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Affiliation(s)
- Chuanchang Li
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Jiaxuan Liu
- Department of Pathology, Changzheng Hospital, The Second Military Medical University, Shanghai 200003, P.R. China
| | - Qingsong Zhang
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Kai Cui
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Qiangqiang Ge
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Chenghe Wang
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Zhong Chen
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
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65
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Yang N, Wang L, Liu J, Liu L, Huang J, Chen X, Luo Z. MicroRNA-206 regulates the epithelial-mesenchymal transition and inhibits the invasion and metastasis of prostate cancer cells by targeting Annexin A2. Oncol Lett 2018; 15:8295-8302. [PMID: 29805562 PMCID: PMC5950137 DOI: 10.3892/ol.2018.8395] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2016] [Accepted: 02/19/2018] [Indexed: 12/11/2022] Open
Abstract
The present study investigated the molecular mechanism by which microRNA-206 (miR-206) targets Annexin A2 (ANXA2) expression and inhibits the invasion and metastasis of prostatic cancer cells through regulation of the epithelial-mesenchymal transition (EMT). Using bioinformatics analysis, miR-206 was identified as the most promising candidate miRNA that targeted ANXA2. Prostate tissue specimens from 60 patients with prostate cancer, 30 patients with metastatic prostate cancer and 20 patients with benign prostatic hyperplasia (BPH) were examined for ANXA2 protein expression by immunohistochemistry and western blotting and for miR-206 expression by reverse transcription-quantitative polymerase chain reaction. Additionally, human prostate cancer PC-3 cells were transfected with miR-206 mimics, miR-206 inhibitors or a negative control sequence, and expression of ANXA2, E-cadherin and N-cadherin was detected by western blotting. Transwell assays were performed to determine the effect of altered miR-206 expression on the invasive behavior of PC-3 cells. Bioinformatics analysis predicted complementary binding between miR-206 and ANXA2 mRNA. ANXA2 protein expression was detected in a significantly higher proportion of BPH tissues (95%, 19/20) when compared with prostate cancer tissues (51.7%, 31/60; P<0.05). Similarly, ANXA2 was expressed in a significantly higher proportion of metastatic prostate cancer samples than that of prostate cancer samples (P<0.05). Expression of miR-206 was higher than that of ANXA2 in prostate cancer samples, but lower in BPH samples. Inhibition of miR-206 expression in PC-3 cells upregulated ANXA2 and E-cadherin protein expression levels, downregulated N-cadherin and vimentin, and promoted cell invasion in vitro. These data suggested that binding between miRNA-206 and ANXA2 mRNA may regulate EMT signaling, thereby suppressing the invasion and metastasis of prostatic cancer cells.
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Affiliation(s)
- Ning Yang
- Department of Urology, The Second Affiliated Hospital of University of South China, Hengyang, Hunan 421001, P.R. China
| | - Ling Wang
- Department of Pharmacology, The Medical School of Hunan University of Environment and Biology, Hengyang, Hunan 421001, P.R. China
| | - Jun Liu
- Department of Urology, The Second Affiliated Hospital of University of South China, Hengyang, Hunan 421001, P.R. China
| | - Li Liu
- Department of Urology, The Second Affiliated Hospital of University of South China, Hengyang, Hunan 421001, P.R. China
| | - Jiangbo Huang
- Department of Urology, The Second Affiliated Hospital of University of South China, Hengyang, Hunan 421001, P.R. China
| | - Xian Chen
- Department of Urology, The Second Affiliated Hospital of University of South China, Hengyang, Hunan 421001, P.R. China
| | - Zhigang Luo
- Department of Urology, The Second Affiliated Hospital of University of South China, Hengyang, Hunan 421001, P.R. China
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66
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Yang XY, Liu QR, Wu LM, Zheng XL, Ma C, Na RS. Overexpression of secretagogin promotes cell apoptosis and inhibits migration and invasion of human SW480 human colorectal cancer cells. Biomed Pharmacother 2018; 101:342-347. [PMID: 29499408 DOI: 10.1016/j.biopha.2018.01.147] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Revised: 01/19/2018] [Accepted: 01/29/2018] [Indexed: 10/17/2022] Open
Abstract
OBJECTIVE In order to investigate the effect of secretagogin (SCGN) on colorectal cancer (CRC) cells apoptosis, invasion and migration in vitro. METHODS Expression of SCGN in CRC tissues and the paired adjacent non-tumorous tissues (n = 36) and four human CRC cell lines (HT29, HCT116, SW480 and SW620) were detected. SW480 cells were transfected with the SCGN overexpression plasmid (eGFP-SCGN), si-SCGN-773, and the corresponding negative controls (NCs). Then, cell-cycle distribution, cell apoptosis, migration, invasion and expression of apoptosis- and metastasis-related proteins were detected. RESULTS SCGN was significantly downregulated in CRC tissues as compared with the adjacent non-tumorous tissues. The expression of SCGN in HT29 and SW480 cells were lower than those in HT116 and SW620 cells. We transfected SW480 cells with SCGN overexpression plasmid eGFP-SCGN and found the increased cell apoptosis, with cell arresting at G0/G1 phase. SW480 cells with SCGN overexpression showed wider wound width and fewer invaded cells than control and blank cells, with upregulated Bax, cleaved Caspase 3 and E-cadherin, and downregulated Bcl-2 and Vimentin. We also transfected SW480 cells with si-SCGN-773 and found si-SCGN increased cell migration and invasion, but did not affect cell apoptosis and expression of related proteins. CONCLUSION We concluded that the overexpression of SCGN in SW480 cells promoted cell apoptosis and inhibited cell migration and invasion.
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Affiliation(s)
- Xiang-Yi Yang
- Department of Gastroenterology, Xuhui District Central Hospital, Shanghai 200031, China
| | - Qiao-Rui Liu
- Department of Endocrinology, Xuhui District Central Hospital, Shanghai 200031, China
| | - Li-Ming Wu
- Department of Endocrinology, Xuhui District Central Hospital, Shanghai 200031, China
| | - Xu-Lei Zheng
- Department of Endocrinology, Xuhui District Central Hospital, Shanghai 200031, China
| | - Cong Ma
- Department of Endocrinology, Xuhui District Central Hospital, Shanghai 200031, China
| | - Ri-Su Na
- Department of Endocrinology, Xuhui District Central Hospital, Shanghai 200031, China.
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67
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Fan LC, Teng HW, Shiau CW, Tai WT, Hung MH, Yang SH, Jiang JK, Chen KF. Regorafenib (Stivarga) pharmacologically targets epithelial-mesenchymal transition in colorectal cancer. Oncotarget 2018; 7:64136-64147. [PMID: 27580057 PMCID: PMC5325431 DOI: 10.18632/oncotarget.11636] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2016] [Accepted: 08/13/2016] [Indexed: 01/28/2023] Open
Abstract
Epithelial-to-mesenchymal transition (EMT) is well-known to evoke cancer invasion/metastasis, leading to a high frequency of mortality in patients with metastatic colorectal cancer (mCRC). Protein tyrosine phosphatase (PTPase)-targeted therapy has been identified as a novel cancer therapeutic. Previously, we proved that sorafenib with anti-EMT potency prevents TGF-β1-induced EMT/invasion by directly activating SH2-domain-containing phosphatase 1 (SHP-1)-dependent p-STAT3Tyr705 suppression in hepatocellular carcinoma. Regorafenib has a closely related chemical structure as sorafenib and is approved for the pharmacotherapy of mCRC. Herein, we evaluate whether regorafenib activates PTPase SHP-1 in the same way as sorafenib to abolish EMT-related invasion/metastasis in CRC. Notably, regorafenib exerted potent anti-EMT activity to curb TGF-β1-induced EMT/invasion in vitro as well inhibited lung metastatic outgrowth of SW480 mesenchymal cells in vivo. Mechanistically, regorafenib-enhanced SHP-1 activity significantly impeded TGF-β1-induced EMT/invasion via low p-STAT3Tyr705 level as proved by a SHP-1 inhibitor or siRNA-mediated SHP-1 depletion. Conversely, overexpression of SHP-1 further enhanced the inhibitory effects of regorafenib on TGF-β1-induced p-STAT3Tyr705 and EMT/invasion. Regorafenib directly activates SHP-1 by potently relieving the autoinhibited N-SH2 domain of SHP-1 to inhibit TGF-β1-induced p-STAT3Tyr705 and EMT/invasion. Importantly, the clinical evidence indicated that SHP-1 was positively correlated with E-cadherin and that significantly determined the overall survival of CRC patients. This result further confirms our in vitro data that SHP-1 is a negative regulatory PTPase in EMT regulation and serves as a pharmacological target for mCRC therapy. Collectively, activating PTPase SHP-1 by regorafenib focusing on its anti-EMT activity might be a useful pharmacotherapy for mCRC.
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Affiliation(s)
- Li-Ching Fan
- Department of Medical Research, National Taiwan University Hospital, Taipei, Taiwan.,National Center of Excellence for Clinical Trial and Research, National Taiwan University Hospital, Taipei, Taiwan
| | - Hao-Wei Teng
- Division of Hematology and Oncology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.,School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Chung-Wai Shiau
- Institute of Biopharmaceutical Sciences, National Yang-Ming University, Taipei, Taiwan
| | - Wei-Tien Tai
- Department of Medical Research, National Taiwan University Hospital, Taipei, Taiwan.,National Center of Excellence for Clinical Trial and Research, National Taiwan University Hospital, Taipei, Taiwan
| | - Man-Hsin Hung
- Division of Medical Oncology, Department of Oncology, Taipei Veterans General Hospital, Taipei, Taiwan.,School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Shung-Haur Yang
- Division of Colon and Rectal Surgery, Department of Surgery, Taipei Veterans General Hospital, Taipei, Taiwan.,School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Jeng-Kai Jiang
- Division of Colon and Rectal Surgery, Department of Surgery, Taipei Veterans General Hospital, Taipei, Taiwan.,School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Kuen-Feng Chen
- Department of Medical Research, National Taiwan University Hospital, Taipei, Taiwan.,National Center of Excellence for Clinical Trial and Research, National Taiwan University Hospital, Taipei, Taiwan
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Weng J, Xiao J, Mi Y, Fang X, Sun Y, Li S, Qin Z, Li X, Liu T, Zhao S, Zhou L, Wen Y. PCDHGA9 acts as a tumor suppressor to induce tumor cell apoptosis and autophagy and inhibit the EMT process in human gastric cancer. Cell Death Dis 2018; 9:27. [PMID: 29348665 PMCID: PMC5833845 DOI: 10.1038/s41419-017-0189-y] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Revised: 11/18/2017] [Accepted: 11/27/2017] [Indexed: 12/14/2022]
Abstract
The results of a cDNA array revealed that protocadherin gamma subfamily A, 9 (PCDHGA9) was significantly decreased in SGC-7901 gastric cancer (GC) cells compared with GES-1 normal gastric cells and was strongly associated with the Wnt/β-catenin and transforming growth factor-β (TGF-β)/Smad2/3 signaling pathway. As a member of the cadherin family, PCDHGA9 functions in both cell-cell adhesion and nuclear signaling. However, its role in tumorigenicity or metastasis has not been reported. In the present study, we found that PCDHGA9 was decreased in GC tissues compared with corresponding normal mucosae and its expression was correlated with the GC TNM stage, the UICC stage, differentiation, relapse, and metastasis (p < 0.01). Multivariate Cox analysis revealed that PCDHGA9 was an independent prognostic indicator for overall survival (OS) and disease-free survival (DFS) (p < 0.01). The effects of PCDHGA9 on GC tumor growth and metastasis were examined both in vivo and in vitro. PCDHGA9 knockdown promoted GC cell proliferation, migration, and invasion, whereas PCDHGA9 overexpression inhibited GC tumor growth and metastasis but induced apoptosis, autophagy, and G1 cell cycle arrest. Furthermore, PCDHGA9 suppressed epithelial-mesenchymal transition (EMT) induced by TGF-β, decreased the phosphorylation of Smad2/3, and inhibited the nuclear translocation of pSmad2/3. Our results suggest that PCDHGA9 might interact with β-catenin to prevent β-catenin from dissociating in the cytoplasm and translocating to the nucleus. Moreover, PCDHGA9 overexpression restrained cell proliferation and reduced the nuclear β-catenin, an indicator of Wnt/β-catenin pathway activation, suggesting that PCDHGA9 negatively regulates Wnt signaling. Together, these data indicate that PCDHGA9 acts as a tumor suppressor with anti-proliferative activity and anti-invasive ability, and the reduction of PCDHGA9 could serve as an independent prognostic biomarker in GC.
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Affiliation(s)
- Junyong Weng
- Department of General Surgery, Shanghai General Hospital, School of Medicine, Shanghai Jiaotong University, 200080, Shanghai, China
| | - Jingbo Xiao
- Shanghai Key Laboratory of Pancreatic Diseases & Department of Gastroenterology, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, 200080, Shanghai, China
| | - Yushuai Mi
- Department of General Surgery, The Second Hospital of Shandong University, Jinan, 250033, Shandong, China
| | - Xu Fang
- Department of General Surgery, Shanghai General Hospital, School of Medicine, Shanghai Jiaotong University, 200080, Shanghai, China
| | - Yahuang Sun
- Department of General Surgery, Shanghai General Hospital, School of Medicine, Shanghai Jiaotong University, 200080, Shanghai, China
| | - Shanbao Li
- Department of General Surgery, Shanghai General Hospital, School of Medicine, Shanghai Jiaotong University, 200080, Shanghai, China
| | - Zhiwei Qin
- Department of General Surgery, Shanghai General Hospital, School of Medicine, Shanghai Jiaotong University, 200080, Shanghai, China
| | - Xu Li
- Department of General Surgery, Shanghai General Hospital, School of Medicine, Shanghai Jiaotong University, 200080, Shanghai, China
| | - Tingting Liu
- Department of Pathology, Shanghai General Hospital, School of Medicine, Shanghai Jiaotong University, 200080, Shanghai, China
| | - Senlin Zhao
- Department of General Surgery, Shanghai General Hospital, School of Medicine, Shanghai Jiaotong University, 200080, Shanghai, China
| | - Lisheng Zhou
- Department of General Surgery, Shanghai General Hospital, School of Medicine, Shanghai Jiaotong University, 200080, Shanghai, China.
| | - Yugang Wen
- Department of General Surgery, Shanghai General Hospital, School of Medicine, Shanghai Jiaotong University, 200080, Shanghai, China.
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El Bairi K, Tariq K, Himri I, Jaafari A, Smaili W, Kandhro AH, Gouri A, Ghazi B. Decoding colorectal cancer epigenomics. Cancer Genet 2018; 220:49-76. [PMID: 29310839 DOI: 10.1016/j.cancergen.2017.11.001] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Revised: 11/01/2017] [Accepted: 11/06/2017] [Indexed: 02/07/2023]
Abstract
Colorectal cancer (CRC) is very heterogeneous and presents different types of epigenetic alterations including DNA methylation, histone modifications and microRNAs. These changes are considered as characteristics of various observed clinical phenotypes. Undoubtedly, the discovery of epigenetic pathways with novel epigenetic-related mechanisms constitutes a promising advance in cancer biomarker discovery. In this review, we provide an evidence-based discussing of the current understanding of CRC epigenomics and its role in initiation, epithelial-to-mesenchymal transition and metastasis. We also discuss the recent findings regarding the potential clinical perspectives of these alterations as potent biomarkers for CRC diagnosis, prognosis, and therapy in the era of liquid biopsy.
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Affiliation(s)
- Khalid El Bairi
- Independent Research Team in Cancer Biology and Bioactive Compounds, Mohamed 1(st) University, Oujda, Morocco.
| | - Kanwal Tariq
- B-10 Jumani Center, Garden East, Karachi 74400, Pakistan
| | - Imane Himri
- Laboratory of Biochemistry, Faculty of Sciences, Mohamed I(st) Universiy, Oujda, Morocco; Delegation of the Ministry of Health, Oujda, Morocco
| | - Abdeslam Jaafari
- Laboratoire de Génie Biologique, Equipe d'Immunopharmacologie, Faculté des Sciences et Techniques, Université Sultan Moulay Slimane, Beni Mellal, Maroc
| | - Wiam Smaili
- Centre de Génomique Humaine, Faculté de Médecine et de Pharmacie, Université Mohamed V, Rabat, Maroc; Département de Génétique Médicale, Institut National d'Hygiène, Rabat, Maroc
| | - Abdul Hafeez Kandhro
- Department of Biochemistry, Healthcare Molecular and Diagnostic Laboratory, Hyderabad, Pakistan
| | - Adel Gouri
- Laboratory of Medical Biochemistry, Ibn Rochd University Hospital, Annaba, Algeria
| | - Bouchra Ghazi
- National Laboratory of Reference, Faculty of Medicine, Mohammed VI University of Health Sciences (UM6SS), Casablanca, Morocco
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Galletti R, Verger S, Hamant O, Ingram GC. Developing a 'thick skin': a paradoxical role for mechanical tension in maintaining epidermal integrity? Development 2017; 143:3249-58. [PMID: 27624830 DOI: 10.1242/dev.132837] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Plant aerial epidermal tissues, like animal epithelia, act as load-bearing layers and hence play pivotal roles in development. The presence of tension in the epidermis has morphogenetic implications for organ shapes but it also constantly threatens the integrity of this tissue. Here, we explore the multi-scale relationship between tension and cell adhesion in the plant epidermis, and we examine how tensile stress perception may act as a regulatory input to preserve epidermal tissue integrity and thus normal morphogenesis. From this, we identify parallels between plant epidermal and animal epithelial tissues and highlight a list of unexplored questions for future research.
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Affiliation(s)
- Roberta Galletti
- Laboratoire Reproduction et Développement des Plantes, Université de Lyon, ENS de Lyon, UCB Lyon 1, CNRS, INRA, Lyon F-69342, France
| | - Stéphane Verger
- Laboratoire Reproduction et Développement des Plantes, Université de Lyon, ENS de Lyon, UCB Lyon 1, CNRS, INRA, Lyon F-69342, France
| | - Olivier Hamant
- Laboratoire Reproduction et Développement des Plantes, Université de Lyon, ENS de Lyon, UCB Lyon 1, CNRS, INRA, Lyon F-69342, France
| | - Gwyneth C Ingram
- Laboratoire Reproduction et Développement des Plantes, Université de Lyon, ENS de Lyon, UCB Lyon 1, CNRS, INRA, Lyon F-69342, France
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Abstract
Melanoma cell expression of the nerve growth factor receptor CD271 is associated with stem-like properties. However, the contributing role of the receptor in melanoma cell migration is elusive. Here, we explored extracranial (skin, soft tissue, lymph node and liver, n = 13) and matched brain metastases (BM, n = 12) and observed a heterogeneous distribution of phenotypically distinct subsets of CD271+ cells. In addition, we observed that CD271 expression gradually rises along with melanoma progression and metastasis by exploration of publicly available expression data of nevi, primary melanoma (n = 31) and melanoma metastases (n = 54). Furthermore, we observed highest levels of CD271 in BM. Sub-clustering identified 99 genes differentially expressed among CD271high and CD271low (p < 0.05) BM-subgroups. Comparative analysis of subsets revealed increased ( ≥ 1.5fold, log2) expression of migration-associated genes and enrichment of CD271-responsible genes involved in DNA-repair and stemness. Live cell-imaging based scratch-wound assays of melanoma cells with stable knock-down of CD271 revealed a significantly reduced cell migration (3.9fold, p = 1.2E-04) and a reduced expression of FGF13, CSPG4, HMGA2 and AKT3 major candidate regulatory genes of melanoma cell migration. In summary, we provide new insights in melanoma cell migration and suggest that CD271 serves as a candidate regulator, sufficient to determine cellular properties of melanoma brain metastatic cells.
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Mao S, Lu G, Lan X, Yuan C, Jiang W, Chen Y, Jin X, Xia Q. Valproic acid inhibits epithelial-mesenchymal transition in renal cell carcinoma by decreasing SMAD4 expression. Mol Med Rep 2017; 16:6190-6199. [DOI: 10.3892/mmr.2017.7394] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2016] [Accepted: 06/27/2017] [Indexed: 11/05/2022] Open
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Feng T, Xu J, He P, Chen Y, Fang R, Shao X. Decrease in stathmin expression by arsenic trioxide inhibits the proliferation and invasion of osteosarcoma cells via the MAPK signal pathway. Oncol Lett 2017; 14:1333-1340. [PMID: 28789348 PMCID: PMC5529766 DOI: 10.3892/ol.2017.6347] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2016] [Accepted: 02/23/2017] [Indexed: 12/26/2022] Open
Abstract
Osteosarcoma (OS) is the most common type of malignant bone tumor in children and adolescents. In total, 40–50% of patients with OS experience metastasis, and thus have a poor prognosis. Our previous study demonstrated that arsenic trioxide (As2O3) combined with doxorubicin [also known as Adriamycin (ADM)] significantly inhibited OS cell proliferation by downregulating stathmin expression. The present study investigated the effect and mechanism of stathmin expression on OS cell invasion. It was identified that the expression of stathmin was increased in human ADM-resistant OS MG63 (MG63/dox) cells compared with the level in the normal osteoblast hFoB1.19cell line using western blot analysis. Lentiviral-mediated small hairpin RNA (shRNA) was constructed to silence stathmin expression of MG63/dox cells. In transwell assay, stathmin-knockdown significantly suppressed migration and invasion in MG63/dox cells. As2O3 combined with ADM inhibited the migration and invasion of MG63/dox cells, and was associated with the downregulation of phosphorylated-mitogen-activated protein kinase (MAPK) 1 and β-catenin, and upregulation of phosphorylated-MAPK8 and E-cadherin. In addition, stathmin-knockdown significantly suppressed tumor growth and increased E-cadherin expression in a xenograft nude mouse model. Taken together, these data suggested that As2O3 combined with ADM inhibited stathmin-mediated invasion via the MAPK pathway. Elucidation of the mechanism for stathmin downregulation by As2O3 may provide novel insights into the mechanism of OS metastasis.
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Affiliation(s)
- Tao Feng
- Clinical Laboratory, The Children's Hospital of Suzhou University, Suzhou, Jiangsu 215025, P.R. China
| | - Jun Xu
- Clinical Laboratory, The Children's Hospital of Suzhou University, Suzhou, Jiangsu 215025, P.R. China
| | - Ping He
- Clinical Laboratory, The Children's Hospital of Suzhou University, Suzhou, Jiangsu 215025, P.R. China
| | - Yuanyuan Chen
- Clinical Laboratory, The Children's Hospital of Suzhou University, Suzhou, Jiangsu 215025, P.R. China
| | - Ruiying Fang
- Clinical Laboratory, The Children's Hospital of Suzhou University, Suzhou, Jiangsu 215025, P.R. China
| | - Xuejun Shao
- Clinical Laboratory, The Children's Hospital of Suzhou University, Suzhou, Jiangsu 215025, P.R. China
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Li J, Xu L, Bao Z, Xu P, Chang H, Wu J, Bei Y, Xia L, Wu P, Cui G. High expression of PIWIL2 promotes tumor cell proliferation, migration and predicts a poor prognosis in glioma. Oncol Rep 2017; 38:183-192. [PMID: 28534979 DOI: 10.3892/or.2017.5647] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2016] [Accepted: 12/05/2016] [Indexed: 11/05/2022] Open
Abstract
Piwi-like RNA-mediated gene silencing 2 (PIWIL2), has been reported as an oncogene tightly associated with the genesis and progression of various malignancies. Nevertheless, the function of the PIWIL2 protein in human gliomas has not yet been clarified. In this study, we sought to investigate the clinical significance of PIWIL2 expression and reveal its function in the pathological process of gliomas. Through western blot and immunohistochemical analyses we found that PIWIL2 was overexpressed in glioma tissues. Moreover, the expression level of PIWIL2 was also significantly correlated with the WHO grades of human gliomas and Ki-67 expression. Kaplan‑Meier curves indicated that PIWIL2 was a prognostic factor for the survival of glioma patients and a high expression of PIWIL2 was correlated with a poor prognosis. In vitro, knockdown of PIWIL2 in glioma cells was shown to induce cell cycle arrest and increase apoptosis. Furthermore, silencing of PIWIL2 expression also obviously suppressed the migration of glioma cells. All the results demonstrated that PIWIL2 plays a significant role in the pathogenesis of human gliomas and may be used as a potential diagnostic marker and a therapeutic target of glioma in the future.
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Affiliation(s)
- Jinquan Li
- Department of Neurosurgery, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, P.R. China
| | - Li Xu
- Department of Neurosurgery, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, P.R. China
| | - Zhen Bao
- Department of Neurosurgery, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, P.R. China
| | - Peng Xu
- Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Targets, Nantong University, Nantong, Jiangsu 226001, P.R. China
| | - Hao Chang
- Department of Neurosurgery, Affiliated Wuxi Second Hospital of Nanjing Medical University, Wuxi, Jiangsu 214002, P.R. China
| | - Jingjing Wu
- Department of Oncology, Nantong Rich Hospital, Nantong, Jiangsu 226001, P.R. China
| | - Yuanqi Bei
- Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Targets, Nantong University, Nantong, Jiangsu 226001, P.R. China
| | - Liuwan Xia
- Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Targets, Nantong University, Nantong, Jiangsu 226001, P.R. China
| | - Peizhang Wu
- Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Targets, Nantong University, Nantong, Jiangsu 226001, P.R. China
| | - Gang Cui
- Department of Neurosurgery, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, P.R. China
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Meng X, Cai J, Liu J, Han B, Gao F, Gao W, Zhang Y, Zhang J, Zhao Z, Jiang C. Curcumin increases efficiency of γ-irradiation in gliomas by inhibiting Hedgehog signaling pathway. Cell Cycle 2017; 16:1181-1192. [PMID: 28463091 DOI: 10.1080/15384101.2017.1320000] [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] [Indexed: 12/28/2022] Open
Abstract
It was reported that γ-irradiation had a controversial therapeutic effect on glioma cells. We aimed to investigate the cytotoxic effect on the glioma cells induced by γ-irradiation and explore the treatment to rescue the phenotype alteration of remaining cells. We used transwell assay to detect the glioma cell invasion and migration capacity. Cell proliferation and apoptosis were tested by the CCK-8 assay and flow cytometry respectively. Western Blot was used to detect the activity of Hedgehog signaling pathway and Epithelial-to-Mesenchymal Transition (EMT) status. γ-irradiation showed cytotoxic effect on LN229 cells in vitro, whereas this contribution was limited in U251 cells. However, it could significantly stimulated EMT process in both LN229 and U251. Curcumin (CCM) could rescue EMT process induced by γ-irradiation via the suppression of Gli1 and the upregulation of Sufu. The location and expression of EMT markers were also verified by Immunofluorescence. Immunohistochemistry assay was used on intracranial glioma tissues of nude mice. The capacities of cell migration and invasion were suppressed with combined therapy. This research showed Curcumin could rescue the EMT process induced by γ-irradiation via inhibiting the Hedgehog signaling pathway and potentiate the cell cytotoxic effect in vivo and in vitro.
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Affiliation(s)
- Xiangqi Meng
- a Department of Neurosurgery , The Second Affiliated Hospital of Harbin Medical University , Harbin , China.,b Chinese Glioma Cooperative Group (CGCG) , Beijing , China
| | - Jinquan Cai
- a Department of Neurosurgery , The Second Affiliated Hospital of Harbin Medical University , Harbin , China.,b Chinese Glioma Cooperative Group (CGCG) , Beijing , China.,c Neuroscience Institute, Heilongjiang Academy of Medical Sciences , Harbin , China
| | - Jichao Liu
- a Department of Neurosurgery , The Second Affiliated Hospital of Harbin Medical University , Harbin , China
| | - Bo Han
- a Department of Neurosurgery , The Second Affiliated Hospital of Harbin Medical University , Harbin , China.,b Chinese Glioma Cooperative Group (CGCG) , Beijing , China
| | - Fei Gao
- d Department of Laboratory Diagnosis , The Second Affiliated Hospital of Harbin Medical University , Harbin , China
| | - Weida Gao
- a Department of Neurosurgery , The Second Affiliated Hospital of Harbin Medical University , Harbin , China.,b Chinese Glioma Cooperative Group (CGCG) , Beijing , China
| | - Yao Zhang
- a Department of Neurosurgery , The Second Affiliated Hospital of Harbin Medical University , Harbin , China.,b Chinese Glioma Cooperative Group (CGCG) , Beijing , China
| | - Jinwei Zhang
- a Department of Neurosurgery , The Second Affiliated Hospital of Harbin Medical University , Harbin , China.,b Chinese Glioma Cooperative Group (CGCG) , Beijing , China
| | - Zhefeng Zhao
- a Department of Neurosurgery , The Second Affiliated Hospital of Harbin Medical University , Harbin , China.,b Chinese Glioma Cooperative Group (CGCG) , Beijing , China
| | - Chuanlu Jiang
- a Department of Neurosurgery , The Second Affiliated Hospital of Harbin Medical University , Harbin , China.,b Chinese Glioma Cooperative Group (CGCG) , Beijing , China.,c Neuroscience Institute, Heilongjiang Academy of Medical Sciences , Harbin , China
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Shao JB, Gao ZM, Huang WY, Lu ZB. The mechanism of epithelial-mesenchymal transition induced by TGF-β1 in neuroblastoma cells. Int J Oncol 2017; 50:1623-1633. [PMID: 28393230 PMCID: PMC5403264 DOI: 10.3892/ijo.2017.3954] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Accepted: 02/22/2017] [Indexed: 12/12/2022] Open
Abstract
Neuroblastoma is the second most common extracranial malignant solid tumor that occurs in childhood, and metastasis is one of the major causes of death in neuroblastoma patients. The epithelial-mesenchymal transition (EMT) is an important mechanism for both the initiation of tumor invasion and subsequent metastasis. Therefore, this study investigated the mechanism by which transforming growth factor (TGF)-β1 induces EMT in human neuroblastoma cells. Using quantitative RT-qPCR and western blot analyses, we found that the mRNA and protein expression levels of E-cadherin were significantly decreased, whereas that of α-SMA was significantly increased after neuroblastoma cells were treated with different concentrations of TGF-β1. A scratch test and Transwell migration assay revealed that cell migration significantly and directly correlated with the concentration of TGF-β1 indicating that TGF-β1 induced EMT in neuroblastoma cells and led to their migration. Inhibiting Smad2/3 expression did not affect the expression of the key molecules involved in EMT. Further investigation found that the expression of the glioblastoma transcription factor (Gli) significantly increased in TGF-β1-stimulated neuroblastoma cells undergoing EMT, accordingly, interfering with Gli1/2 expression inhibited TGF-β1-induced EMT in neuroblastoma cells. GANT61, which is a targeted inhibitor of Gli1 and Gli2, decreased cell viability and promoted cell apoptosis. Thus, TGF-β1 induced EMT in neuroblastoma cells to increase their migration. Specifically, EMT induced by TGF-β1 in neuroblastoma cells did not depend on the Smad signaling pathway, and the transcription factor Gli participated in TGF-β1-induced EMT independent of Smad signaling.
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Affiliation(s)
- Jing-Bo Shao
- Department of Hematology/Oncology, Shanghai Children's Hospital, Shanghai Jiaotong University, Shanghai 200040, P.R. China
| | - Zhi-Mei Gao
- Department of Central Laboratory, Shanghai Children's Hospital, Shanghai Jiaotong University, Shanghai 200040, P.R. China
| | - Wen-Yan Huang
- Department of Nephrology, Shanghai Children's Hospital, Shanghai Jiaotong University, Shanghai 200040, P.R. China
| | - Zhi-Bao Lu
- Department of General Surgery, Shanghai Children's Hospital, Shanghai Jiaotong University, Shanghai 200040, P.R. China
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Tumor-derived CXCL5 promotes human colorectal cancer metastasis through activation of the ERK/Elk-1/Snail and AKT/GSK3β/β-catenin pathways. Mol Cancer 2017; 16:70. [PMID: 28356111 PMCID: PMC5372323 DOI: 10.1186/s12943-017-0629-4] [Citation(s) in RCA: 169] [Impact Index Per Article: 24.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Accepted: 03/02/2017] [Indexed: 12/22/2022] Open
Abstract
Background Metastasis is a major cause of death in human colorectal cancer patients. However, the contribution of chemokines in the tumor microenvironment to tumor metastasis is not fully understood. Methods Herein, we examinined several chemokines in colorectal cancer patients using chemokine ELISA array. Immunohistochemistry was used to detect expression of CXCL5 in colorectal cancer patients tissues. Human HCT116 and SW480 cell lines stably transfected with CXCL5, shCXCL5 and shCXCR2 lentivirus plasmids were used in our in vitro study. Immunoblot, immunofluorescence and transwell assay were used to examine the molecular biology and morphological changes in these cells. In addition, we used nude mice to detect the influence of CXCL5 on tumor metastasis in vivo. Results We found that CXCL5 was overexpressed in tumor tissues and associated with advanced tumor stage as well as poor prognosis in colorectal cancer patients. We also demonstrated that CXCL5 was primarily expressed in the tumor cell cytoplasm and cell membranes, which may indicate that the CXCL5 was predominantly produced by cancer epithelial cells instead of fibroblasts in the tumor mesenchyme. Additionally, overexpression of CXCL5 enhanced the migration and invasion of colorectal cancer cells by inducing the epithelial-mesenchymal transition (EMT) through activation of the ERK/Elk-1/Snail pathway and the AKT/GSK3β/β-catenin pathway in a CXCR2-dependent manner. The silencing of Snail and β-catenin attenuated CXCL5/CXCR2-enhanced cell migration and invasion in vitro. The elevated expression of CXCL5 can also potentiate the metastasis of colorectal cancer cells to the liver in vivo in nude mice intrasplenic injection model. Conclusion In conclusion, our findings support CXCL5 as a promoter of colorectal cancer metastasis and a predictor of poor clinical outcomes in colorectal cancer patients. Electronic supplementary material The online version of this article (doi:10.1186/s12943-017-0629-4) contains supplementary material, which is available to authorized users.
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Zhang X, Yang M, Shi H, Hu J, Wang Y, Sun Z, Xu S. Reduced E-cadherin facilitates renal cell carcinoma progression by WNT/β-catenin signaling activation. Oncotarget 2017; 8:19566-19576. [PMID: 28223537 PMCID: PMC5386706 DOI: 10.18632/oncotarget.15361] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2016] [Accepted: 01/16/2017] [Indexed: 01/02/2023] Open
Abstract
Reduced expression of E-cadherin was observed in renal cell carcinoma (RCC). However, its potential clinical value and correlation with WNT/β-catenin signaling in RCC progression was still unclear. Immunohistochemical staining was performed in RCC tissue microarray to examine the expression status and prognosis value of E-cadherin and β-catenin. The potential role of E-cadherin in β-catenin translocation was analyzed with immunobloting assays. A significant negative correlation was observed between E-cadherin and β-catenin expression in RCC tissues. E-cadherin inhibits β-catenin translocation from membrane to cytoplasm in RCC tissues, which was an important step for WNT/β-catenin signaling. Reduced E-cadherin expression was associated with poor prognosis. More importantly, E-cadherin-/β-catenin+ was an independent detrimental factor for survival estimation of RCC patients. Reduced E-cadherin expression in RCC promoted cancer progression via WNT/β-catenin signaling pathway activation. E-cadherin/β-catenin provides a valuable prognosis marker for RCC, which may be an effective target for RCC therapy.
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Affiliation(s)
- Xinqi Zhang
- Emergency Department, General Hospital of Jinan Military Area, Jinan, Shandong, 250031, China
| | - Mingxi Yang
- Department of Urology, Guizhou Provincial People's Hospital Affiliated to Guizhou Medical University, Guiyang, Guizhou, 550002, China
| | - Hua Shi
- Department of Urology, Guizhou Provincial People's Hospital Affiliated to Guizhou Medical University, Guiyang, Guizhou, 550002, China
| | - Jianxin Hu
- Department of Urology, Guizhou Provincial People's Hospital Affiliated to Guizhou Medical University, Guiyang, Guizhou, 550002, China
| | - Yuanlin Wang
- Department of Urology, Guizhou Provincial People's Hospital Affiliated to Guizhou Medical University, Guiyang, Guizhou, 550002, China
| | - Zhaolin Sun
- Department of Urology, Guizhou Provincial People's Hospital Affiliated to Guizhou Medical University, Guiyang, Guizhou, 550002, China
| | - Shuxiong Xu
- Department of Urology, Guizhou Provincial People's Hospital Affiliated to Guizhou Medical University, Guiyang, Guizhou, 550002, China
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Vinnakota K, Zhang Y, Selvanesan BC, Topi G, Salim T, Sand-Dejmek J, Jönsson G, Sjölander A. M2-like macrophages induce colon cancer cell invasion via matrix metalloproteinases. J Cell Physiol 2017; 232:3468-3480. [PMID: 28098359 DOI: 10.1002/jcp.25808] [Citation(s) in RCA: 94] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Revised: 01/13/2017] [Accepted: 01/17/2017] [Indexed: 12/19/2022]
Abstract
The inflammatory milieu plays an important role in colon cancer development and progression. Previously, we have shown that tumor-associated macrophages (TAMs), an important component of the tumor microenvironment, are enriched in tumors compared with normal tissue and confer a poorer prognosis. In the present study, we found that matrix metallopeptidase-9 (MMP-9), which degrades extracellular matrix proteins, was increased in biopsies from colon cancer patients and in mouse xenografts with SW480 cell-derived tumors. SW480 colon cancer cells exposed to M2-like macrophage-conditioned medium (M2-medium) exhibited increased MMP-9 mRNA, protein expression and gelatinase activity. A similar effect was obtained by the addition of tumor necrosis factor-α (TNFα) and leukotriene D4 (LTD4 ). MMP-9 expression and activity were reduced by a TNFα blocking antibody adalimumab and a cysteinyl leukotriene receptor 1 (CysLTR1, the receptor for LTD4 ) antagonist montelukast. M2-medium also induced changes in the epithelial-mesenchymal transition (EMT) markers E-cadherin, β-catenin, vimentin, and snail in SW480 cells. We also found that both M2-medium and TNFα and LTD4 induced stabilization/nuclear translocation of β-catenin. Furthermore, we also observed an elongated phenotype that may indicate increased invasiveness, as confirmed in a collagen I invasion assay. M2-medium increased the invasive ability, and a similar effect was also obtained by the addition of TNFα and LTD4 . The specific MMP inhibitor I or adalimumab and montelukast reduced the number of invasive cells. In conclusion, our findings show that M2-medium enriched in TNFα and LTD4 promote colon cancer cell invasion via MMP-9 expression and activation and the induction of EMT.
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Affiliation(s)
- Katyayni Vinnakota
- Division of Cell and Experimental Pathology, Department of Translational Medicine, Clinical Research Centre, Lund University, Skåne University Hospital, Malmö, Sweden
| | - Yuan Zhang
- Division of Cell and Experimental Pathology, Department of Translational Medicine, Clinical Research Centre, Lund University, Skåne University Hospital, Malmö, Sweden
| | - Benson Chellakkan Selvanesan
- Division of Cell and Experimental Pathology, Department of Translational Medicine, Clinical Research Centre, Lund University, Skåne University Hospital, Malmö, Sweden
| | - Geriolda Topi
- Division of Cell and Experimental Pathology, Department of Translational Medicine, Clinical Research Centre, Lund University, Skåne University Hospital, Malmö, Sweden
| | - Tavga Salim
- Division of Cell and Experimental Pathology, Department of Translational Medicine, Clinical Research Centre, Lund University, Skåne University Hospital, Malmö, Sweden
| | - Janna Sand-Dejmek
- Division of Cell and Experimental Pathology, Department of Translational Medicine, Clinical Research Centre, Lund University, Skåne University Hospital, Malmö, Sweden
| | - Gunilla Jönsson
- Division of Cell and Experimental Pathology, Department of Translational Medicine, Clinical Research Centre, Lund University, Skåne University Hospital, Malmö, Sweden
| | - Anita Sjölander
- Division of Cell and Experimental Pathology, Department of Translational Medicine, Clinical Research Centre, Lund University, Skåne University Hospital, Malmö, Sweden
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Yamada N, Sugai T, Eizuka M, Tsuchida K, Sugimoto R, Mue Y, Suzuki M, Osakabe M, Uesugi N, Ishida K, Otsuka K, Matsumoto T. Tumor budding at the invasive front of colorectal cancer may not be associated with the epithelial-mesenchymal transition. Hum Pathol 2017; 60:151-159. [DOI: 10.1016/j.humpath.2016.10.007] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2016] [Revised: 09/26/2016] [Accepted: 10/14/2016] [Indexed: 02/07/2023]
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81
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Xu L, Li J, Bao Z, Xu P, Chang H, Wu J, Bei Y, Xia L, Wu P, Yan K, Lu B, Cui G. Silencing of OTUB1 inhibits migration of human glioma cells in vitro. Neuropathology 2017; 37:217-226. [PMID: 28139865 DOI: 10.1111/neup.12366] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Revised: 12/19/2016] [Accepted: 12/20/2016] [Indexed: 01/12/2023]
Affiliation(s)
- Li Xu
- Department of Neurosurgery; The First Affiliated Hospital of Soochow University; Suzhou Jiangsu Province China
| | - Jinquan Li
- Department of Neurosurgery; The First Affiliated Hospital of Soochow University; Suzhou Jiangsu Province China
| | - Zhen Bao
- Department of Neurosurgery; The First Affiliated Hospital of Soochow University; Suzhou Jiangsu Province China
| | - Peng Xu
- Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target; Nantong Jiangsu Province China
| | - Hao Chang
- Department of Neurosurgery; Affiliated Wuxi Second Hospital of Nanjing Medical University; Wuxi Jiangsu Province China
| | - Jingjing Wu
- Department of Oncology; Nantong Rich Hospital; Nantong Jiangsu Province China
| | - Yuanqi Bei
- Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target; Nantong Jiangsu Province China
| | - Liuwan Xia
- Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target; Nantong Jiangsu Province China
| | - Peizhang Wu
- Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target; Nantong Jiangsu Province China
| | - Ke Yan
- Department of Neurosurgery; The First Affiliated Hospital of Soochow University; Suzhou Jiangsu Province China
| | - Bing Lu
- Department of Neurosurgery; The First Affiliated Hospital of Soochow University; Suzhou Jiangsu Province China
| | - Gang Cui
- Department of Neurosurgery; The First Affiliated Hospital of Soochow University; Suzhou Jiangsu Province China
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Qin CD, Ma DN, Ren ZG, Zhu XD, Wang CH, Wang YC, Ye BG, Cao MQ, Gao DM, Tang ZY. Astragaloside IV inhibits metastasis in hepatoma cells through the suppression of epithelial-mesenchymal transition via the Akt/GSK-3β/β-catenin pathway. Oncol Rep 2017; 37:1725-1735. [PMID: 28112375 DOI: 10.3892/or.2017.5389] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2016] [Accepted: 11/04/2016] [Indexed: 01/14/2023] Open
Abstract
Our previous studies demonstrated that traditional Chinese herbal medicine 'Songyou Yin' inhibited the growth and invasion of hepatocellular carcinoma (HCC) cells, and altered epithelial‑mesenchymal transition (EMT) markers in oxaliplatin‑treated HCC tissues and cell lines. In the present study, we aimed to explore whether astragaloside IV (AS-IV), a component of 'Songyou Yin', can affect the growth and invasion of HCC cells and the underlying mechanism involved. Human HCC cell lines Huh7 and MHCC97-H, with low and high metastatic potential, respectively, were treated with increasing doses of AS-IV. The Cell Counting Kit-8 (CCK-8), plate clone formation, Transwell, wound healing and immunofluorescence assays were used to investigate the effects of AS-IV on HCC cell proliferation, migration and invasion. The protein expression levels were analyzed by western blotting and immunofluorescence assay. The CCK-8 and plate clone formation assays showed that AS-IV had little effect on the proliferation of HCC cells in vitro. However, the Transwell and wound healing assays demonstrated that AS-IV inhibited the migration and invasion of HCC cells in a dose-dependent manner and the morphology of HCC cells was altered from spindle into oval shaped in the AS-IV pretreated groups. The upregulation of E-cadherin and downregulation of N-cadherin, vimentin, α-SMA and Slug were also observed in the AS-IV pretreated groups. Additionally, AS-IV treatment resulted in a profound decrease in the phosphorylated forms of Akt and GSK-3β, which in turn inhibited the expression of β-catenin. Thus, we conclude that AS-IV attenuates the invasive and migratory abilities of HCC cells through the inhibition of EMT by targeting the Akt/GSK-3β/β-catenin pathway.
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Affiliation(s)
- Cheng-Dong Qin
- Liver Cancer Institute, Zhongshan Hospital, Fudan University, Key Laboratory of Carcinogenesis and Cancer Invasion (Fudan University), Chinese Ministry of Education, Shanghai 200032, P.R. China
| | - De-Ning Ma
- Department of Liver Surgery, Fudan University Shanghai Cancer Center, Cancer Hospital, Shanghai 200032, P.R. China
| | - Zheng-Gang Ren
- Liver Cancer Institute, Zhongshan Hospital, Fudan University, Key Laboratory of Carcinogenesis and Cancer Invasion (Fudan University), Chinese Ministry of Education, Shanghai 200032, P.R. China
| | - Xiao-Dong Zhu
- Liver Cancer Institute, Zhongshan Hospital, Fudan University, Key Laboratory of Carcinogenesis and Cancer Invasion (Fudan University), Chinese Ministry of Education, Shanghai 200032, P.R. China
| | - Cheng-Hao Wang
- Liver Cancer Institute, Zhongshan Hospital, Fudan University, Key Laboratory of Carcinogenesis and Cancer Invasion (Fudan University), Chinese Ministry of Education, Shanghai 200032, P.R. China
| | - Ying-Cong Wang
- Liver Cancer Institute, Zhongshan Hospital, Fudan University, Key Laboratory of Carcinogenesis and Cancer Invasion (Fudan University), Chinese Ministry of Education, Shanghai 200032, P.R. China
| | - Bo-Gen Ye
- Department of General Surgery, Changhai Hospital, Second Military Medical University, Shanghai, 200032, P.R. China
| | - Man-Qing Cao
- Liver Cancer Institute, Zhongshan Hospital, Fudan University, Key Laboratory of Carcinogenesis and Cancer Invasion (Fudan University), Chinese Ministry of Education, Shanghai 200032, P.R. China
| | - Dong-Mei Gao
- Liver Cancer Institute, Zhongshan Hospital, Fudan University, Key Laboratory of Carcinogenesis and Cancer Invasion (Fudan University), Chinese Ministry of Education, Shanghai 200032, P.R. China
| | - Zhao-You Tang
- Liver Cancer Institute, Zhongshan Hospital, Fudan University, Key Laboratory of Carcinogenesis and Cancer Invasion (Fudan University), Chinese Ministry of Education, Shanghai 200032, P.R. China
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Meta-analysis of gene expression studies in endometrial cancer identifies gene expression profiles associated with aggressive disease and patient outcome. Sci Rep 2016; 6:36677. [PMID: 27830726 PMCID: PMC5103206 DOI: 10.1038/srep36677] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2016] [Accepted: 10/19/2016] [Indexed: 12/17/2022] Open
Abstract
Although endometrioid endometrial cancer (EEC; comprising ~80% of all endometrial cancers diagnosed) is typically associated with favourable patient outcome, a significant portion (~20%) of women with this subtype will relapse. We hypothesised that gene expression predictors of the more aggressive non-endometrioid endometrial cancers (NEEC) could be used to predict EEC patients with poor prognosis. To explore this hypothesis, we performed meta-analysis of 12 gene expression microarray studies followed by validation using RNA-Seq data from The Cancer Genome Atlas (TCGA) and identified 1,253 genes differentially expressed between EEC and NEEC. Analysis found 121 genes were associated with poor outcome among EEC patients. Forward selection likelihood-based modelling identified a 9-gene signature associated with EEC outcome in our discovery RNA-Seq dataset which remained significant after adjustment for clinical covariates, but was not significant in a smaller RNA-Seq dataset. Our study demonstrates the value of employing meta-analysis to improve the power of gene expression microarray data, and highlight genes and molecular pathways of importance for endometrial cancer therapy.
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Mi Y, Zhao S, Zhang W, Zhang D, Weng J, Huang K, Sun H, Tang H, Zhang X, Sun X, Peng Z, Wen Y. Down-regulation of Barx2 predicts poor survival in colorectal cancer. Biochem Biophys Res Commun 2016; 478:67-73. [DOI: 10.1016/j.bbrc.2016.07.091] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2016] [Accepted: 07/20/2016] [Indexed: 01/20/2023]
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