1
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Chen XY, Cheng AY, Wang ZY, Jin JM, Lin JY, Wang B, Guan YY, Zhang H, Jiang YX, Luan X, Zhang LJ. Dbl family RhoGEFs in cancer: different roles and targeting strategies. Biochem Pharmacol 2024; 223:116141. [PMID: 38499108 DOI: 10.1016/j.bcp.2024.116141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Revised: 03/06/2024] [Accepted: 03/15/2024] [Indexed: 03/20/2024]
Abstract
Small Ras homologous guanosine triphosphatase (Rho GTPase) family proteins are highly associated with tumorigenesis and development. As intrinsic exchange activity regulators of Rho GTPases, Rho guanine nucleotide exchange factors (RhoGEFs) have been demonstrated to be closely involved in tumor development and received increasing attention. They mainly contain two families: the diffuse B-cell lymphoma (Dbl) family and the dedicator of cytokinesis (Dock) family. More and more emphasis has been paid to the Dbl family members for their abnormally high expression in various cancers and their correlation to poor prognosis. In this review, the common and distinctive structures of Dbl family members are discussed, and their roles in cancer are summarized with a focus on Ect2, Tiam1/2, P-Rex1/2, Vav1/2/3, Trio, KALRN, and LARG. Significantly, the strategies targeting Dbl family RhoGEFs are highlighted as novel therapeutic opportunities for cancer.
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Affiliation(s)
- Xin-Yi Chen
- Shanghai Frontiers Science Center of TCM Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Ao-Yu Cheng
- Shanghai Frontiers Science Center of TCM Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Zi-Ying Wang
- School of Biological Engineering, Tianjin University of Science&Technology, Tianjin 301617, China
| | - Jin-Mei Jin
- Shanghai Frontiers Science Center of TCM Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Jia-Yi Lin
- Shanghai Frontiers Science Center of TCM Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Bei Wang
- Shanghai Frontiers Science Center of TCM Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Ying-Yun Guan
- Department of Pharmacy, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
| | - Hao Zhang
- Shanghai Frontiers Science Center of TCM Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Yi-Xin Jiang
- Shanghai Frontiers Science Center of TCM Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
| | - Xin Luan
- Shanghai Frontiers Science Center of TCM Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
| | - Li-Jun Zhang
- Shanghai Frontiers Science Center of TCM Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
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2
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Chen Y, Jia L, Zhao K, Chen Z, Han Y, He X. CTHRC1 promotes anaplastic thyroid cancer progression by upregulating the proliferation, migration, and invasion of tumor cells. PeerJ 2023; 11:e15458. [PMID: 37273536 PMCID: PMC10234271 DOI: 10.7717/peerj.15458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Accepted: 05/03/2023] [Indexed: 06/06/2023] Open
Abstract
Anaplastic thyroid carcinoma (ATC) is an extremely aggressive tumor with a high mortality rate and poor prognosis. However, the pathogenesis of ATC is complex and poorly understood, and the effective treatment options are limited. Analysis of data from the Gene Expression Omnibus (GEO) and The Cancer Genome Atlas (TCGA) databases showed that collagen triple helix repeat containing-1 (CTHRC1) was specifically upregulated in ATC tissues and was negatively correlated with overall survival (OS) in thyroid carcinoma patients. In vitro knockdown of CTHRC1 dramatically decreased the proliferation, migration, and invasion abilities of ATC cells, and in vivo studies in BALB/c nude mice confirmed that CTHRC1 knockdown significantly inhibited tumor growth. Mechanistically, CTHRC1 knockdown was found to suppress the Wnt/β-catenin pathway and epithelial-mesenchymal transition (EMT) at the protein level. These findings suggest that CTHRC1 promotes the progression of ATC via upregulating tumor cell proliferation, migration, and invasion, which may be achieved by activating the Wnt/β-catenin pathway and EMT.
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Affiliation(s)
- Yong Chen
- Department of General Surgery, Tianjin Medical University General Hospital, Tianjin, China
- Department of General Surgery, Huai’an Second People’s Hospital, Huai’an, Jiangsu, China
| | - Lanning Jia
- Department of General Surgery, Tianjin Medical University General Hospital, Tianjin, China
| | - Ke Zhao
- Department of General Surgery, Tianjin Medical University General Hospital, Tianjin, China
| | - Zuoyu Chen
- Department of General Surgery, Tianjin Medical University General Hospital, Tianjin, China
| | - Yue Han
- Department of General Surgery, Tianjin Medical University General Hospital, Tianjin, China
| | - Xianghui He
- Department of General Surgery, Tianjin Medical University General Hospital, Tianjin, China
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3
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Liu DX, Hao SL, Yang WX. Crosstalk Between β-CATENIN-Mediated Cell Adhesion and the WNT Signaling Pathway. DNA Cell Biol 2023; 42:1-13. [PMID: 36399409 DOI: 10.1089/dna.2022.0424] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Cell adhesion and stable signaling regulation are fundamental ways of maintaining homeostasis. Among them, the Wnt/β-CATENIN signaling plays a key role in embryonic development and maintenance of body dynamic homeostasis. At the same time, the key signaling molecule β-CATENIN in the Wnt signaling can also function as a cytoskeletal linker protein to regulate tissue barriers, cell migration, and morphogenesis. Dysregulation of the balance between Wnt signaling and adherens junctions can lead to disease. How β-CATENIN maintains the independence of these two functions, or mediates the interaction and balance of these two functions, has been explored and debated for a long time. In this study, we will focus on five aspects of β-CATENIN chaperone molecules, phosphorylation of β-CATENIN and related proteins, epithelial mesenchymal transition, β-CATENIN homolog protein γ-CATENIN and disease, thus deepening the understanding of the Wnt/β-CATENIN signaling and the homeostasis between cell adhesion and further addressing related disease problems.
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Affiliation(s)
- Ding-Xi Liu
- The Sperm Laboratory, College of Life Sciences, Zhejiang University, Hangzhou, China
| | - Shuang-Li Hao
- The Sperm Laboratory, College of Life Sciences, Zhejiang University, Hangzhou, China
| | - Wan-Xi Yang
- The Sperm Laboratory, College of Life Sciences, Zhejiang University, Hangzhou, China
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4
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Zhu X, Zhang F, You Y, Wang H, Yuan S, Wu B, Zhu R, Liu D, Yan F, Wang Z. S-Ketamine Exerts Antidepressant Effects by Regulating Rac1 GTPase Mediated Synaptic Plasticity in the Hippocampus of Stressed Rats. Cell Mol Neurobiol 2023; 43:299-314. [PMID: 35083636 DOI: 10.1007/s10571-021-01180-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Accepted: 12/03/2021] [Indexed: 01/07/2023]
Abstract
Clinical studies have found that ketamine has a rapid and lasting antidepressant effect, especially in the case of patients with major depressive disorder (MDD). The molecular mechanisms, however, remain unclear. In this study, we observe the effects of S-Ketamine on the expression of Rac1, neuronal morphology, and synaptic transmission function in the hippocampus of stressed rats. Chronic unpredictable mild stress (CUMS) was used to construct stressed rats. The rats were given a different regimen of ketamine (20 mg/kg, i.p.) and Rac1 inhibitor NSC23766 (50 µg, ICV) treatment. The depression-like behavior of rats was evaluated by sucrose preference test and open-field test. The protein expression of Rac1, GluA1, synapsin1, and PSD95 in the hippocampus was detected by Western blot. Pull-down analysis was used to examine the activity of Rac1. Golgi staining and electrophysiological study were used to observe the neuronal morphology and long-term potentiation (LTP). Our results showed that ketamine can up-regulate the expression and activity of Rac1; increase the spine density and the expression of synaptic-related proteins such as GluA1, Synapsin1, and PSD95 in the hippocampus of stressed rats; reduce the CUMS-induced LTP impairments; and consequently improve depression-like behavior. However, Rac1 inhibitor NSC23766 could have effectively reversed ketamine-mediated changes in the hippocampus of rats and counteracted its antidepressant effects. The specific mechanism of S-Ketamine's antidepressant effect may be related to the up-regulation of the expression and activity of Rac1 in the hippocampus of stressed rats, thus enhancing synaptic plasticity.
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Affiliation(s)
- Xianlin Zhu
- Department of Anesthesiology, The Central Hospital of Enshi Tujia and Miao Autonomous Prefecture, Enshi City, 445000, Hubei Province, China
| | - Fan Zhang
- Department of Anesthesiology, Bishan Hospital, Bishan, Chongqing, 402760, China
| | - Yufeng You
- Department of Radiology, The Central Hospital of Enshi Tujia and Miao Autonomous Prefecture, Enshi City, 445000, Hubei Province, China
| | - Hongbai Wang
- Department of Anesthesiology, Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100000, China
| | - Su Yuan
- Department of Anesthesiology, Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100000, China
| | - Banglin Wu
- Department of Anesthesiology, The Central Hospital of Enshi Tujia and Miao Autonomous Prefecture, Enshi City, 445000, Hubei Province, China
| | - Rongyu Zhu
- Department of Anesthesiology, The Central Hospital of Enshi Tujia and Miao Autonomous Prefecture, Enshi City, 445000, Hubei Province, China
| | - Dawei Liu
- Department of Anesthesiology, Yongchuan Hospital of Chongqing Medical University, Chongqing, 402160, China
| | - Fuxia Yan
- Department of Anesthesiology, Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100000, China.
| | - Zaiping Wang
- Department of Anesthesiology, The Central Hospital of Enshi Tujia and Miao Autonomous Prefecture, Enshi City, 445000, Hubei Province, China.
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Zhang Y, Duan Y, Wu C, Peng W, Chen W, Wang L, Deng Z. MiR-200c regulates invasion, proliferation and EMT of anaplastic thyroid cancer cells by targeting parathyroid hormone like hormone. Growth Factors 2022; 40:175-185. [PMID: 36067091 DOI: 10.1080/08977194.2022.2108809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
This study aimed to explore the specific effect of miR-200c in anaplastic thyroid cancer (ATC). Hth74 and ARO cell lines were used. Proliferation, invasion, and colony formation activities of Hth74 and ARO cell lines affected by miR-200c were studied. Expression of epithelial-to-mesenchymal transition (EMT) markers (E-cadherin, N-cadherin, Slug, and Snail) in the Hth74 and ARO cell lines were validated by western blot and qRT-PCR. In addition, the regulation of the parathyroid hormone-like hormone (PTHLH) by miR-200c was assessed. Overexpression of miR-200c inhibited the invasion, proliferation, and colony formation of the ATC cell lines, whereas its downregulation achieved the opposite results. PTHLH was found to be regulated negatively by miR-200c through a miR-200c binding site within the 3'-UTR of PTHLH. miR-200c repressed the proliferation, invasion, and EMT process of cells in ATC cell lines by targeting PTHLH post-transcriptionally, which indicates that miR-200c may be a potential target for the treatment of ATC.
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Affiliation(s)
- Yan Zhang
- Department of Endocrinology, The Affiliated People's Hospital of Jiangsu University, Zhenjiang, PR China
| | - Yuanyuan Duan
- Department of Allergy and Rheumatology, Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, PR China
| | - Chenguang Wu
- Department of Endocrinology, The Affiliated People's Hospital of Jiangsu University, Zhenjiang, PR China
| | - Wen Peng
- Department of Public Health Nutrition, Medical School, Qinghai University, Xining, PR China
| | - Wenyu Chen
- Department of Endocrinology, The Affiliated People's Hospital of Jiangsu University, Zhenjiang, PR China
| | - Li Wang
- Department of Endocrinology, The Affiliated People's Hospital of Jiangsu University, Zhenjiang, PR China
| | - Zhaoqun Deng
- Laboratory Center, the Affiliated People's Hospital of Jiangsu University, Zhenjiang, PR China
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6
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Li W, Huang G, Wei J, Cao H, Jiang G. ALKBH5 inhibits thyroid cancer progression by promoting ferroptosis through TIAM1-Nrf2/HO-1 axis. Mol Cell Biochem 2022; 478:729-741. [PMID: 36070054 DOI: 10.1007/s11010-022-04541-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Accepted: 08/08/2022] [Indexed: 11/29/2022]
Abstract
As a critical catalytic subunit of N6-methyladenosine (m6A) modification in messenger RNA, ALKBH5 has been reported to affect the progression of numerous tumors. However, the functions and mechanisms of ALKBH5 in thyroid cancer remain largely unknown. Relative mRNA and protein levels in thyroid cancer tissues and cells were detected by qRT-PCR and western blot, respectively. The proliferation and viability were evaluated using colony formation and CCK-8 assays. Intracellular iron level was measured by an iron colorimetric assay kit. ROS level was determined using CellRox Green reagent. TIAM1 mRNA m6A level was detected by MeRIP. Xenograft tumor growth was performed to examine the role of ALKBH5 in thyroid tumor growth in vivo. ALKBH5 was decreased in thyroid cancer tissues and cells. ALKBH5 overexpression inhibited thyroid cancer cell proliferation and increased the levels of Fe2+ and ROS and reduced the proteins expression of GPX4 and SLC7A11. Furthermore, overexpression of ALKBH5 inhibited TIAM1 expression by m6A modification, and overexpression of TIAM1 reversed the regulatory of oe-ALKBH5 on cell proliferation and ferroptosis in thyroid cancer. In addition, TIAM1 was elevated in thyroid cancer, and TIAM1 knockdown repressed thyroid cancer cell proliferation and promoted ferroptosis through regulating Nrf2/HO-1 axis. In addition, in vivo evidences also showed that ALKBH5 suppressed thyroid cancer progression by decreasing the m6A level of TIAM1. Our findings suggested that ALKBH5 inhibited thyroid cancer progression by inducing ferroptosis through m6A-TIAM1-Nrf2/HO-1 axis, suggesting ALKBH5 might be a potential target molecule for the treatment and diagnosis of thyroid cancer.
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Affiliation(s)
- Wei Li
- Department of Surgery, The Second Affiliated Hospital of Soochow University, No. 1055, San-Xiang Road, Suzhou, 215004, Jiangsu, People's Republic of China.,Department of Breast and Thyroid Surgery, The Second Affiliated Hospital, Hengyang Medical College, University of South China, Hengyang, 421001, Hunan, People's Republic of China
| | - Guo Huang
- Hengyang Medical College, University of South China, Hengyang, 421001, Hunan, People's Republic of China
| | - Jinrong Wei
- Department of Surgery, The Second Affiliated Hospital of Soochow University, No. 1055, San-Xiang Road, Suzhou, 215004, Jiangsu, People's Republic of China
| | - Hong Cao
- Department of Breast and Thyroid Surgery, The Second Affiliated Hospital, Hengyang Medical College, University of South China, Hengyang, 421001, Hunan, People's Republic of China
| | - Guoqin Jiang
- Department of Surgery, The Second Affiliated Hospital of Soochow University, No. 1055, San-Xiang Road, Suzhou, 215004, Jiangsu, People's Republic of China.
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7
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Yue Y, Wu K, Qian W, Zhu Z, Zhang S, Zhang W, Zhang W, Wu S, Li L, Wu Z, Ma Q, Xie K, Wang Z. RASAL2 mediated the enhancement of YAP1/TIAM1 signaling promotes malignant phenotypes of pancreatic ductal adenocarcinoma. Int J Biol Sci 2022; 18:4245-4259. [PMID: 35844783 PMCID: PMC9274491 DOI: 10.7150/ijbs.72204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2022] [Accepted: 06/14/2022] [Indexed: 12/24/2022] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is characterized by a high incidence of metastasis and dismal prognosis. As a member of Gas-Gap gene, RASAL2 is involved in the hydrolysis of RAS-GTP to RAS-GDP and abnormal expression in human cancers. Here we firstly described the function of RASAL2 on PDAC to enrich the knowledge of RAS family.We interestingly observed that RASAL2 expression was upregulated in PDAC at both mRNA and protein levels, and high expression of RASAL2 predicted a poor prognosis in PDAC patients. Additionally, RASAL2 promoted malignant behaviors of PDAC in vitro and in vivo. To determine the mechanistic roles of RASAL2 signaling and its potential as a therapeutic target in PDAC, we clarified that RASAL2 could accumulate the TIAM1 expression in different level through inhibiting YAP1 phosphorylation, increased TIAM1 mRNA expression and suppressed ubiquitination of TIAM1 protein. In conclusion, RASAL2 enhances YAP1/TIAM1 signaling and promotes PDAC development and progression.
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Affiliation(s)
- Yangyang Yue
- Department of Hepatobiliary Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China.,Department of Vascular Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China
| | - Kaijie Wu
- Department of Urology Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China
| | - Weikun Qian
- Department of Hepatobiliary Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China
| | - Zeen Zhu
- Department of Hepatobiliary Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China
| | - Simei Zhang
- Department of Hepatobiliary Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China
| | - Wunai Zhang
- Department of Hepatobiliary Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China
| | - Weifan Zhang
- Department of Hepatobiliary Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China
| | - Shuai Wu
- Department of Hepatobiliary Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China
| | - Li Li
- Department of Ophthalmology, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China
| | - Zheng Wu
- Department of Hepatobiliary Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China
| | - Qingyong Ma
- Department of Hepatobiliary Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China
| | - Keping Xie
- Center for Pancreatic Cancer Research, South China University of Technology, Guangzhou, Guangdong 510006, China
| | - Zheng Wang
- Department of Hepatobiliary Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China
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8
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Fibulin-3 sponges Tiam1 to manipulate MMP-7 activity through β-catenin signaling in oral squamous cell carcinoma. MEDICAL ONCOLOGY (NORTHWOOD, LONDON, ENGLAND) 2022; 39:154. [PMID: 35852664 DOI: 10.1007/s12032-022-01746-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Accepted: 05/09/2022] [Indexed: 10/17/2022]
Abstract
Oral squamous cell carcinoma (named OSCC) is considered the most frequent malignancy in oral cavity, which has become a rapid increasing problem for the global public health with unclear molecular mechanism. Previously, Tiam1 (T-lymphoma invasion and metastasis inducing factor 1) has been reported as a potential oncogene for OSCC. Here, we in-depth explored its signaling mechanism for the disorder. The mRNA and protein expression levels of primary differentially expressed genes (Tiam1, Fibulin-3, and MMP-7) were measured in different TNM stages of OSCC patients using RT-PCR and ELISA methods. Based on the analysis of human OSCC cell line CAL27, the relationships between these factors have been further investigated and the interactions were also examined. The luciferase reporter assay was established for the promoter region of MMP-7. Both the epithelial (E-cadherin) and mesenchymal protein markers (Vimentin and Snail) expressions were examined using western blotting. The mRNA and protein activities of Fibulin-3 declined as the increase of TNM stage. Inversely, the mRNA and protein levels of Tiam1 and MMP-7 elevated significantly as OSCC progressed. Tiam1 transfection in CAL27 cells stimulated the expression of MMP-7 by accelerating the nuclear translocation of β-catenin, which was opposite to the functions of Fibulin-3. Moreover, Tiam1 interacted directly with Fibulin-3. The Tiam1 induced OSCC epithelial-mesenchymal transition (EMT) via MMP-7 activation, which was dependent on the direct binding of β-catenin at the promoter region. Collectively, these results indicated that Tiam1 competed with Fibulin-3 for nuclear β-catenin translocation, which subsequently stimulated MMP-7 expression by TCF-4 domain interaction following EMT initiation in OSCC development. Our systematical work hypothesized an innovative signaling cassette for OSCC progression, which provided beneficial references for future clinical study.
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9
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KCNIP3 silence promotes proliferation and epithelial-mesenchymal transition of papillary thyroid carcinoma through activating Wnt/β-catenin pathway. Tissue Cell 2022; 75:101739. [DOI: 10.1016/j.tice.2022.101739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 01/11/2022] [Accepted: 01/12/2022] [Indexed: 12/24/2022]
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10
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Han YL, Luo D, Habaxi K, Tayierjiang J, Zhao W, Wang W, Aikebaier W, Wang L. COL5A2 Inhibits the TGF-β and Wnt/β-Catenin Signaling Pathways to Inhibit the Invasion and Metastasis of Osteosarcoma. Front Oncol 2022; 12:813809. [PMID: 35280775 PMCID: PMC8907856 DOI: 10.3389/fonc.2022.813809] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Accepted: 01/18/2022] [Indexed: 12/26/2022] Open
Abstract
Osteosarcoma is the most common skeletal malignancy and is the second leading cause of cancer death in adolescents. Its highly aggressive nature and high propensity to metastasize lead to an extremely poor prognosis for patients with osteosarcoma. Therefore, finding a suitable treatment has become a matter of urgency. In this study, we first divided the samples into metastatic and non-metastatic groups using the Target database and obtained 1136 differentially expressed genes (DEGs) using differential analysis. A PPI network was constructed to analyze the network of action relationships among DEGs, and the top 10 genes were derived using the MCC algorithm in Cytoscape software. A risk scoring system for 10 key genes was constructed using the LASSO-COX prognostic risk model, and genes associated with osteosarcoma prognosis were screened based on multifactorial COX. COL5A2 gene was highly expressed in metastatic osteosarcoma and led to a poor prognosis. Furthermore, qRT-PCR and immunofluorescence assays confirmed the high expression of COL5A2 in human osteosarcoma cells. CCK-8 assay and scratch WB was used to determine whether the downregulation of COL5A2 expression inhibits the TGF-β signaling and Wnt/β-Catenin signaling pathways. In this study, we screened COL5A2 for prognostic relevance to osteosarcoma through bioinformatics analysis and demonstrated that COL5A2 inhibited osteosarcoma invasion and metastasis by suppressing the TGF-β signaling and Wnt/β-Catenin signaling pathways.
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Affiliation(s)
- Yan-Long Han
- Department of Bone and Joint Surgery Center, People’s Hospital of Xinjiang Uygur Autonomous Region, Urumqi, China
| | - Dan Luo
- Department of Respiratory and Critical Care Medicine, People’s Hospital of Xinjiang Uygur Autonomous Region, Urumqi, China
| | - Kakeng Habaxi
- Department of Bone and Joint Surgery Center, People’s Hospital of Xinjiang Uygur Autonomous Region, Urumqi, China
| | - Julaiti Tayierjiang
- Department of Bone and Joint Surgery Center, People’s Hospital of Xinjiang Uygur Autonomous Region, Urumqi, China
| | - Wei Zhao
- Department of Bone and Joint Surgery Center, People’s Hospital of Xinjiang Uygur Autonomous Region, Urumqi, China
| | - Wei Wang
- Department of Bone and Joint Surgery Center, People’s Hospital of Xinjiang Uygur Autonomous Region, Urumqi, China
| | - Wumaierjiang Aikebaier
- Department of Bone and Joint Surgery Center, People’s Hospital of Xinjiang Uygur Autonomous Region, Urumqi, China
| | - Li Wang
- Department of Bone and Joint Surgery Center, People’s Hospital of Xinjiang Uygur Autonomous Region, Urumqi, China
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11
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Su C, Huang R, Yu Z, Zheng J, Liu F, Liang H, Mo Z. Myelin and lymphocyte protein serves as a prognostic biomarker and is closely associated with the tumor microenvironment in the nephroblastoma. Cancer Med 2022; 11:1427-1438. [PMID: 35023304 PMCID: PMC8894696 DOI: 10.1002/cam4.4542] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Revised: 11/05/2021] [Accepted: 12/06/2021] [Indexed: 12/30/2022] Open
Abstract
Nephroblastoma, also known as Wilms' tumor (WT), is the most common renal tumor that occurs in children. Although the efficacy of treatment has been significantly improved by a series of comprehensive treatments, some patients still have poor prognosis. Myelin and lymphocyte (MAL) protein, a highly hydrophobic integrated membrane‐bound protein, has been implicated in many tumors and is also closely linked to kidney development. However, the relationship between MAL and WT has not yet been elucidated. Therefore, we attempted to evaluate the feasibility of MAL as a promising prognosis factor for WT. The differential expression of MAL was investigated using TARGET database and was verified using the Gene Expression Omnibus database and real‐time quantitative PCR. The prognostic ability of MAL was determined using Kaplan–Meier and Cox regression analyses. Pearson correlation analysis was applied to explore the relationship between MAL expression and methylation sites. The ESTIMATE and CIBERSORT algorithms showed that MAL expression was associated with the WT tumor microenvironment. Gene Set Enrichment Analysis (GSEA) indicated that multiple signaling pathways closely associated with tumorigenesis were differentially enriched between the high‐ and low‐MAL groups. In conclusion, our study comprehensively explored the potential of MAL as a prognosis factor for WT. Meanwhile, we also demonstrated that MAL, as a prognostic factor for WT, may be closely related to the tumor microenvironment.
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Affiliation(s)
- Cheng Su
- Department of Pediatric Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, China.,Department of Urology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China.,Guangxi Medical University, Nanning, China
| | | | - Zhenyuan Yu
- Department of Urology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China.,Guangxi Medical University, Nanning, China.,Guangxi Key Laboratory for Genomic and Personalized Medicine, Guangxi Key Laboratory of Colleges and Universities, Nanning, China
| | - Jie Zheng
- Department of Urology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China.,Guangxi Medical University, Nanning, China.,Guangxi Key Laboratory for Genomic and Personalized Medicine, Guangxi Key Laboratory of Colleges and Universities, Nanning, China
| | | | | | - Zengnan Mo
- Department of Urology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China.,Guangxi Medical University, Nanning, China.,Guangxi Key Laboratory for Genomic and Personalized Medicine, Guangxi Key Laboratory of Colleges and Universities, Nanning, China.,Institute of Urology and Nephrology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China.,Guangxi Collaborative Innovation Center for Genomic and Personalized Medicine, Guangxi Medical University, Nanning, China
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12
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Zhang D, Tao L, Xu N, Lu X, Wang J, He G, Tang Q, Huang K, Shen S, Chu J. CircRNA circTIAM1 promotes papillary thyroid cancer progression through the miR-646/HNRNPA1 signaling pathway. Cell Death Dis 2022; 8:21. [PMID: 35022405 PMCID: PMC8755710 DOI: 10.1038/s41420-021-00798-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 09/07/2021] [Accepted: 12/02/2021] [Indexed: 11/24/2022]
Abstract
Papillary thyroid cancer (PTC) is a common endocrine tumor with a rapidly increasing incidence in recent years. Although the majority of PTCs are relatively indolent and have a good prognosis, a certain proportion is highly aggressive with lymphatic metastasis, iodine resistance, and easy recurrence. Circular RNAs (circRNAs) are a class of noncoding RNAs that are linked to a variety of tumor processes in several cancers, including PTC. In the current study, circRNA high-throughput sequencing was performed to identify alterations in circRNA expression levels in PTC tissues. circTIAM1 was then selected because of its increased expression in PTC and association with apoptosis, proliferation, and migration of PTC cells in vitro and in vivo. Mechanistically, circTIAM1 acted as a sponge of microRNA-646 and functioned in PTC by targeting miR-646 and heterogeneous ribonucleoprotein A1. Fluorescence in situ hybridization and dual-luciferase reporter assays further confirmed these connections. Overall, our results reveal an important oncogenic role of circTIAM1 in PTC and may represent a potentially therapeutic target against PTC progression.
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Affiliation(s)
- Deguang Zhang
- Department of head and neck surgery, Institute of Micro-Invasive Surgery of Zhejiang University, Sir Run Run Shaw Hospital, Medical School, Zhejiang University, Hangzhou, People's Republic of China
| | - Li Tao
- Department of head and neck surgery, Institute of Micro-Invasive Surgery of Zhejiang University, Sir Run Run Shaw Hospital, Medical School, Zhejiang University, Hangzhou, People's Republic of China
| | - Nizheng Xu
- Department of head and neck surgery, Institute of Micro-Invasive Surgery of Zhejiang University, Sir Run Run Shaw Hospital, Medical School, Zhejiang University, Hangzhou, People's Republic of China
| | - Xiaoxiao Lu
- Department of head and neck surgery, Institute of Micro-Invasive Surgery of Zhejiang University, Sir Run Run Shaw Hospital, Medical School, Zhejiang University, Hangzhou, People's Republic of China
| | - Jianle Wang
- Department of orthopaedic surgery, Sir Run Run Shaw Hospital, Zhejiang University school of Medicine & Key laboratory of Musculoskeletal system Degeneration and regeneration Translational research of Zhejiang Province, 3 east Qingchun road, Hangzhou, 310016, People's Republic of China
| | - Gaofei He
- Department of head and neck surgery, Institute of Micro-Invasive Surgery of Zhejiang University, Sir Run Run Shaw Hospital, Medical School, Zhejiang University, Hangzhou, People's Republic of China
| | - Qinghu Tang
- Department of general surgery, People's Hospital of Linghu, Nanxun District, Huzhou, Zhejiang Province, People's Republic of China
| | - Kangmao Huang
- Department of orthopaedic surgery, Sir Run Run Shaw Hospital, Zhejiang University school of Medicine & Key laboratory of Musculoskeletal system Degeneration and regeneration Translational research of Zhejiang Province, 3 east Qingchun road, Hangzhou, 310016, People's Republic of China
| | - Shuying Shen
- Department of orthopaedic surgery, Sir Run Run Shaw Hospital, Zhejiang University school of Medicine & Key laboratory of Musculoskeletal system Degeneration and regeneration Translational research of Zhejiang Province, 3 east Qingchun road, Hangzhou, 310016, People's Republic of China.
| | - Junjie Chu
- Department of head and neck surgery, Institute of Micro-Invasive Surgery of Zhejiang University, Sir Run Run Shaw Hospital, Medical School, Zhejiang University, Hangzhou, People's Republic of China.
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13
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Maltas J, Reed H, Porter A, Malliri A. Mechanisms and consequences of dysregulation of the Tiam family of Rac activators in disease. Biochem Soc Trans 2020; 48:2703-2719. [PMID: 33200195 DOI: 10.1042/bst20200481] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 10/16/2020] [Accepted: 10/16/2020] [Indexed: 12/14/2022]
Abstract
The Tiam family proteins - Tiam1 and Tiam2/STEF - are Rac1-specific Guanine Nucleotide Exchange Factors (GEFs) with important functions in epithelial, neuronal, immune and other cell types. Tiam GEFs regulate cellular migration, proliferation and survival, mainly through activating and directing Rac1 signalling. Dysregulation of the Tiam GEFs is significantly associated with human diseases including cancer, immunological and neurological disorders. Uncovering the mechanisms and consequences of dysregulation is therefore imperative to improving the diagnosis and treatment of diseases. Here we compare and contrast the subcellular localisation and function of Tiam1 and Tiam2/STEF, and review the evidence for their dysregulation in disease.
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Affiliation(s)
- Joe Maltas
- Cell Signalling Group, Cancer Research UK Manchester Institute, The University of Manchester, Alderley Park SK10 4TG, U.K
| | - Hannah Reed
- Cell Signalling Group, Cancer Research UK Manchester Institute, The University of Manchester, Alderley Park SK10 4TG, U.K
| | - Andrew Porter
- Cell Signalling Group, Cancer Research UK Manchester Institute, The University of Manchester, Alderley Park SK10 4TG, U.K
| | - Angeliki Malliri
- Cell Signalling Group, Cancer Research UK Manchester Institute, The University of Manchester, Alderley Park SK10 4TG, U.K
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14
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Wang S, Zhu W, Ouyang L, Li J, Li S, Yang X. Up-Regulation of Tiam1 Promotes the Radioresistance of Laryngeal Squamous Cell Carcinoma Through Activation of the JNK/ATF-2 Signaling Pathway. Onco Targets Ther 2020; 13:7065-7074. [PMID: 32801742 PMCID: PMC7382609 DOI: 10.2147/ott.s257748] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Accepted: 06/16/2020] [Indexed: 11/23/2022] Open
Abstract
Purpose Our previous study has revealed that T-lymphoma invasion and metastasis-inducing factor 1 (Tiam1) overexpression are significantly associated with aggressive behavior and poor prognosis in patients with laryngeal squamous cell carcinoma (LSCC). However, the influence of Tiam1 in the radioresistance of LSCC and its mechanism have never been elucidated. Materials and Methods Western blotting was used to confirm the relationship between Tiam1 and the JNK/ATF-2 signaling pathway. To explore the specific functions of Tiam1 and JNK/ATF-2 signaling pathway on the proliferation and apoptosis of LSCC after radiation, cloning formation assay and flow cytometry were conducted in vitro, and the experiments on a xenograft mouse model and TUNEL assay were performed in vivo. Results Western blotting indicated that Tiam1 can regulate the JNK/ATF-2 signaling pathway through the influence of the activity of JNK and ATF-2. Up-regulation of Tiam1 could promote proliferation and inhibit apoptosis of LSCC after radiation both in vitro and in vivo. Moreover, the down-regulation of the JNK/ATF-2 signaling pathway reduced the radioresistance of LSCC caused by Tiam1 up-regulation. Conclusion These results suggest that the up-regulation of Tiam1 expression can promote the radioresistance of LSCC through activation of the JNK/ATF-2 signaling pathway.
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Affiliation(s)
- Shuang Wang
- Department of Otolaryngology-Head and Neck Surgery, The Second Xiangya Hospital, Central South University, Changsha 410011, Hunan, People's Republic of China
| | - Weiyu Zhu
- Department of Head and Neck Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital & Shenzhen Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shenzhen 518116, Guangdong, People's Republic of China
| | - Lei Ouyang
- Department of Otolaryngology-Head and Neck Surgery, The Second Xiangya Hospital, Central South University, Changsha 410011, Hunan, People's Republic of China
| | - Jingkun Li
- Department of Otolaryngology-Head and Neck Surgery, The Second Xiangya Hospital, Central South University, Changsha 410011, Hunan, People's Republic of China
| | - Shisheng Li
- Department of Otolaryngology-Head and Neck Surgery, The Second Xiangya Hospital, Central South University, Changsha 410011, Hunan, People's Republic of China
| | - Xinming Yang
- Department of Otolaryngology-Head and Neck Surgery, The Second Xiangya Hospital, Central South University, Changsha 410011, Hunan, People's Republic of China
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15
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Fu Y, Zheng Q, Mao Y, Jiang X, Chen X, Liu P, Lv B, Huang T, Yang J, Cheng Y, Dai X, Dai C, Wang X, Yin Y, Song T, Jin W, Zou C, Chen T, Fu L, Chen Z. WNT2-Mediated FZD2 Stabilization Regulates Esophageal Cancer Metastasis via STAT3 Signaling. Front Oncol 2020; 10:1168. [PMID: 32766155 PMCID: PMC7379028 DOI: 10.3389/fonc.2020.01168] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Accepted: 06/09/2020] [Indexed: 12/24/2022] Open
Abstract
Esophageal cancer micro environment factor WNT2 was critical in cancer metastasis. However, very little is known about WNT2 receptors and their role in the malignant progression of ESCC. The clinical significance and underlying molecular mechanisms of FZD2, one of the receptors of WNT2, was further investigated in ESCC. We found that FZD2 expression was positively correlated with WNT2 levels in clinical ESCC specimens through database analysis. Upregulated FZD2 expression was detected in 69% (69/100) of the primary ESCC cases examined, and increased FZD2 expression was significantly correlated with poor prognosis (P < 0.05). Mechanistically, FZD2 induced the migration and invasion of ESCC cells by regulating the FZD2/STAT3 signaling. In vivo xenograft experiments further revealed the metastasis-promoting role of FZD2 in ESCC. Moreover, we found that the WNT2 ligand could stabilize and phosphorylate the FZD2 receptor by attenuating FZD2 ubiquitination, leading to the activation of STAT3 signaling and the initiation of ESCC cell metastasis. Collectively, our data revealed that a novel non-canonical WNT2/FZD2/STAT3 signaling axis is critical for ESCC progression. Strategies targeting this specific signaling axis might be developed to treat patients with ESCC.
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Affiliation(s)
- Yufei Fu
- Key Laboratory of Digestive Pathophysiology of Zhejiang Province, First Affiliated Hospital, Zhejiang Chinese Medical University, Hangzhou, China
| | - Qi Zheng
- Department of Thoracic and Cardiovascular Surgery, The First Affiliated Hospital of Zhejiang University, Hangzhou, China
| | - Yingying Mao
- Department of Epidemiology and Biostatistics, Zhejiang Chinese Medical University, Hangzhou, China
| | - Xiyi Jiang
- Group of Molecular Epidemiology & Cancer Precision Prevention, Zhejiang Academy of Medical Sciences, Hangzhou, China
| | - Xin Chen
- Department of Thoracic and Cardiovascular Surgery, The First Affiliated Hospital of Zhejiang University, Hangzhou, China
| | - Pei Liu
- Key Laboratory of Digestive Pathophysiology of Zhejiang Province, First Affiliated Hospital, Zhejiang Chinese Medical University, Hangzhou, China
| | - Bin Lv
- Key Laboratory of Digestive Pathophysiology of Zhejiang Province, First Affiliated Hospital, Zhejiang Chinese Medical University, Hangzhou, China
| | - Tuxiong Huang
- Guangdong Provincial Key Laboratory of Regional Immunity and Diseases, Department of Pharmacology and Shenzhen International Cancer Centre, Shenzhen University School of Medicine, Shenzhen, China
| | - Jiao Yang
- Guangdong Provincial Key Laboratory of Regional Immunity and Diseases, Department of Pharmacology and Shenzhen International Cancer Centre, Shenzhen University School of Medicine, Shenzhen, China
| | - Yongran Cheng
- Group of Molecular Epidemiology & Cancer Precision Prevention, Zhejiang Academy of Medical Sciences, Hangzhou, China
| | - Xiaoyi Dai
- Department of Thoracic and Cardiovascular Surgery, The First Affiliated Hospital of Zhejiang University, Hangzhou, China
| | - Chunyan Dai
- Key Laboratory of Digestive Pathophysiology of Zhejiang Province, First Affiliated Hospital, Zhejiang Chinese Medical University, Hangzhou, China
| | - Xi Wang
- Key Laboratory of Digestive Pathophysiology of Zhejiang Province, First Affiliated Hospital, Zhejiang Chinese Medical University, Hangzhou, China
| | - Yifei Yin
- Key Laboratory of Digestive Pathophysiology of Zhejiang Province, First Affiliated Hospital, Zhejiang Chinese Medical University, Hangzhou, China
| | - Tengjiao Song
- College of Life Science, Zhejiang Chinese Medical University, Hangzhou, China
| | - Weiyang Jin
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, China
| | - Chang Zou
- Clinical Medical Research Center, The First Affiliated Hospital of Southern University of Science and Technology, The Second Clinical Medical College of Jinan University, Shenzhen People's Hospital, Shenzhen, China
| | - Tianhui Chen
- Department of Cancer Prevention, Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Hangzhou, China.,Institute of Cancer and Basic Medicine, Chinese Academy of Sciences, Hangzhou, China
| | - Li Fu
- Guangdong Provincial Key Laboratory of Regional Immunity and Diseases, Department of Pharmacology and Shenzhen International Cancer Centre, Shenzhen University School of Medicine, Shenzhen, China
| | - Zhe Chen
- Key Laboratory of Digestive Pathophysiology of Zhejiang Province, First Affiliated Hospital, Zhejiang Chinese Medical University, Hangzhou, China
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16
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Javed Z, Ahmed Shah F, Rajabi S, Raza Q, Iqbal Z, Ullah M, Ahmad T, Salehi B, Sharifi-Rad M, Pezzani R, Yaqoob F, Sadia H, Iriti M, Sharifi-Rad J, Cho WC. LncRNAs as Potential Therapeutic Targets in Thyroid Cancer. Asian Pac J Cancer Prev 2020; 21:281-287. [PMID: 32102500 PMCID: PMC7332117 DOI: 10.31557/apjcp.2020.21.2.281] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Indexed: 12/15/2022] Open
Abstract
Thyroid cancer (TC) is the most common cancer of endocrine system. TC can be subdivided into 4 different entities, papillary, follicular, medullary and anaplastic thyroid cancer. Among them, anaplastic thyroid cancer has the poorest prognosis. Exploring new therapeutic approach may entail favorable prediction as well as increasing overall survival rate of patients. Long non-coding RNAs (lncRNAs), have vast implications in different cancer types. Although they are not transcribed into proteins, they can act as a harness in regulating a plethora of biological functions. They have been implicated in a decisive role in gene expression via modulation of both coding and non-coding RNAs. This article discuss the multi-facet role of lncRNA in thyroid cancer biology.
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Affiliation(s)
- Zeeshan Javed
- Office for Research Innovation and Commercialization Lahore Garrison University, Lahore, Pakistan
| | - Faiez Ahmed Shah
- Department of Biotechnology, Quaid-i-Azam University, Islamabad, Pakistan
| | - Sadegh Rajabi
- Department of Clinical Biochemistry, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Qamar Raza
- Institute of Biochemistry and Biotechnology,University of Veterinary and Animal Sciences, Lahore, Pakistan
| | - Zaheer Iqbal
- Center for Excellence in Molecular Biology, University of the Punjab Lahore, Lahore, Pakistan
| | - Mukhtar Ullah
- Office for Research Innovation and Commercialization Lahore Garrison University, Lahore, Pakistan
| | - Touqeer Ahmad
- Department of Biotechnology, Quaid-i-Azam University, Islamabad, Pakistan
| | - Bahare Salehi
- Student Research Committee, School of Medicine, Bam University of Medical Sciences, Bam, Iran
| | - Mehdi Sharifi-Rad
- Department of Medical Parasitology, Kerman University of Medical Sciences, Kerman, Iran
| | - Raffaele Pezzani
- OU Endocrinology, Dept. Medicine (DIMED), University of Padova, via Ospedale 105, 35128 Padova, Italy.,AIROB, Associazione Italiana per la Ricerca Oncologica di Base, Padova, Italy
| | - Farooq Yaqoob
- Center for Excellence in Molecular Biology, University of the Punjab Lahore, Lahore, Pakistan
| | - Haleema Sadia
- Office for Research Innovation and Commercialization Lahore Garrison University, Lahore, Pakistan
| | - Marcello Iriti
- Department of Agricultural and Environmental Sciences, Milan State University, 20133 Milan, Italy
| | - Javad Sharifi-Rad
- Phytochemistry Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - William C Cho
- Department of Clinical Oncology, Queen Elizabeth Hospital, 30 Gascoigne Road, Hong Kong, China
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17
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Li Q, Chen W, Luo R, Zhang Z, Song M, Chen W, Yang Z, Yang Y, Guo Z, Yang A. Upregulation of OIP5-AS1 Predicts Poor Prognosis and Contributes to Thyroid Cancer Cell Proliferation and Migration. MOLECULAR THERAPY. NUCLEIC ACIDS 2020; 20:279-291. [PMID: 32193154 PMCID: PMC7078457 DOI: 10.1016/j.omtn.2019.11.036] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Revised: 11/03/2019] [Accepted: 11/08/2019] [Indexed: 12/17/2022]
Abstract
As a common malignancy, thyroid cancer mainly occurs in the endocrine system. There have been accumulating studies on therapeutic methods of thyroid cancer, but its internal molecular mechanism is still not fully understood. Long noncoding RNA (lncRNA) OIP5-AS1 was confirmed as an oncogene and related to poor prognosis in various cancers. Nevertheless, its role and underlying mechanism remain unclear in thyroid cancer. Here, we observed a significant upregulation of OIP5-AS1 in thyroid cancer tissues and cells, and upregulated OIP5-AS1 was correlated with poor prognosis in thyroid cancer. Moreover, OIP5-AS1 knockdown resulted in the inhibited cell proliferation and migration, while overexpressed OIP5-AS1 exhibited the reverse function in thyroid cancer. Besides, OIP5-AS1 was found to positively regulate Wnt/β-catenin signaling pathway. Through mechanism exploration, OIP5-AS1 was discovered to activate Wnt/β-catenin signaling pathway via FXR1/YY1/CTNNB1 axis. Finally, rescue assays indicated that the inhibitive role of silenced OIP5-AS1 in thyroid cancer cell growth and Wnt/β-catenin signaling pathway could be rescued by overexpression of CTNNB1 or addition of lithium chloride (LiCl). In conclusion, upregulation of OIP5-AS1 predicted unfavorable prognosis and enhanced thyroid cancer cell growth by activating Wnt/β-catenin signaling pathway.
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Affiliation(s)
- Qiuli Li
- Department of Head and Neck Surgery, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China
| | - Weichao Chen
- Department of Head and Neck Surgery, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China
| | - Rongzhen Luo
- Department of Pathology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China
| | - Zhiyi Zhang
- Department of Pathology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China
| | - Ming Song
- Department of Head and Neck Surgery, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China
| | - Wenkuan Chen
- Department of Head and Neck Surgery, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China
| | - Zhongyuan Yang
- Department of Head and Neck Surgery, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China
| | - Yuanzhong Yang
- Department of Pathology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China
| | - Zhuming Guo
- Department of Head and Neck Surgery, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China
| | - Ankui Yang
- Department of Head and Neck Surgery, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China.
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18
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Zhu M, Gong Z, Wu Q, Shi X, Su Q, Zhang Y. Sanguinarine suppresses migration and metastasis in colorectal carcinoma associated with the inversion of EMT through the Wnt/β-catenin signaling. Clin Transl Med 2020; 10:1-12. [PMID: 32508048 PMCID: PMC7239267 DOI: 10.1002/ctm2.1] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Accepted: 02/20/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Unresectable lung or liver organ metastases of colorectal carcinoma (CRC) remain a major obstacle in clinical therapeutics. Epithelial to mesenchymal transition (EMT), a major cause of highly frequent metastasis in tumor, can be promoted by the Wnt/β-catenin pathway that is aberrantly activated in approximately 90% of CRC. This research aimed to elucidate the antimetastatic potential of sanguinarine (SG) in CRC and the underlying molecular mechanism. METHODS The in vitro anticancer effect of SG was determined via cell viability experiment and colony formation assay. Xenograft model of nude mice was used to confirm the antitumor effect of SG in vivo. The antimetastatic potential of SG was investigated by the metastasis model of nude mice, hematoxylin and eosin (H&E) staining, migration assay, and wound-healing analysis. Immunoblotting analysis, immunofluorescence staining, and immunohistochemistry assay were conducted to elucidate the molecular mechanism. RESULTS In this study, we reported that SG has a selective inhibitory effect on LoVo cells with metastatic characteristics. Furthermore, our results showed attenuation in the migration and metastatic ability of SG-treated LoVo cells and also decreased metastatic nodules of liver and lung in mice metastasis model. This was also confirmed at the molecular level via H&E staining. Further study revealed that SG had negative impacts on the Wnt/β-catenin pathway and EMT markers in LoVo cells both in vitro and in vivo. CONCLUSIONS Taken together, the antimetastatic potential of SG attributed to the suppression of the Wnt/β-catenin signaling, which further prevented EMT progression. SG may be of value in a potential therapy for the management of metastasis CRC.
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Affiliation(s)
- Man Zhu
- School of PharmacyHealth Science CenterXi'an Jiaotong UniversityXi'anP.R. China
| | - Zhengyan Gong
- School of PharmacyHealth Science CenterXi'an Jiaotong UniversityXi'anP.R. China
| | - Qing Wu
- School of PharmacyHealth Science CenterXi'an Jiaotong UniversityXi'anP.R. China
| | - Xianpeng Shi
- School of PharmacyHealth Science CenterXi'an Jiaotong UniversityXi'anP.R. China
| | - Qi Su
- School of PharmacyHealth Science CenterXi'an Jiaotong UniversityXi'anP.R. China
| | - Yanmin Zhang
- School of PharmacyHealth Science CenterXi'an Jiaotong UniversityXi'anP.R. China
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19
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Han L, Li Z, Jiang Y, Jiang Z, Tang L. SNHG29 regulates miR-223-3p/CTNND1 axis to promote glioblastoma progression via Wnt/β-catenin signaling pathway. Cancer Cell Int 2019; 19:345. [PMID: 31889897 PMCID: PMC6924063 DOI: 10.1186/s12935-019-1057-x] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Accepted: 12/04/2019] [Indexed: 12/15/2022] Open
Abstract
Background Glioblastoma has been seen as the most common malignancy of brain tumor. Emerging reports has claimed that SNHG29 (LRRC75A-AS1) was involved in several biological processes via modulation of signaling pathway, and served as an malignant facilitatorin osteosarcoma. However, the specific role of SNHG29 in glioblastoma remains unknown. Methods RT-qPCR and microarray were operated to measure genes expression. Western blot was performed to examine protein expression. CCK-8 and colony formation assays were used to evaluate cell proliferation. Cell migration was tested by transwell assay. Nuclear-cytoplasmic fractionation was conducted to locate SNHG29. The binding capacity of miR-223-3p to SNHG29 or CTNND1 3′UTR was verified by RIP and luciferase reporter assay. Results SNHG29 presented high expression in glioblastoma to boost cell proliferation, migration and EMT process. In addition, miR-223-3p was validated to bind with SNHG29 after prediction and screening. Furthermore, miR-223-3p was proved to be a negative regulator for its target CTNND1. Then, the inhibition on cell proliferation, migration and EMT process resulted from SNHG29 knockdown was recovered by CTNND1 overexpression. At last, the inhibitive impacts on cell proliferation, migration and EMT process of CTNND1 deficiency was abrogated by LiCl. Conclusions In conclusion, SNHG29 regulates miR-223-3p/CTNND1 axis to promote glioblastoma progression via Wnt/β-catenin signaling pathway, offering a potential therapeutic point for glioblastoma patients.
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Affiliation(s)
- Lizhang Han
- 1Department of Neurosurgery, Qilu Hospital of Shandong University and Institute of Brain and Brain-Inspired Science, Shandong University, 107 Wenhua West Road, Lixia District, Jinan, 250012 Shandong People's Republic of China.,Shandong Key Laboratory of Brain Function Remodeling, Jinan, People's Republic of China
| | - Zhonggang Li
- 3Department of Neurosurgery, Linyi People's Hospital, 27 Jiefang Road East Section, Lanshan District, Linyi, Shandong China
| | - Yuquan Jiang
- 1Department of Neurosurgery, Qilu Hospital of Shandong University and Institute of Brain and Brain-Inspired Science, Shandong University, 107 Wenhua West Road, Lixia District, Jinan, 250012 Shandong People's Republic of China.,Shandong Key Laboratory of Brain Function Remodeling, Jinan, People's Republic of China
| | - Zheng Jiang
- 1Department of Neurosurgery, Qilu Hospital of Shandong University and Institute of Brain and Brain-Inspired Science, Shandong University, 107 Wenhua West Road, Lixia District, Jinan, 250012 Shandong People's Republic of China.,Shandong Key Laboratory of Brain Function Remodeling, Jinan, People's Republic of China
| | - Ling Tang
- 4Department of Pediatrics, Jinan Central Hospital Affiliated to Shandong University, Jinan, 250013 People's Republic of China
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20
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Abstract
BACKGROUND A number of studies have attempted to determine the prognostic value of T-cell lymphoma invasion and metastasis-inducing factor 1 (Tiam1) in patients with solid cancers, but the reported results were of inconsistency. Thus, we performed a systematic review and meta-analysis to exhaustively evaluate the prognostic role of Tiam1 expression in patients with solid cancers. METHODS We retrieved literature published in between 1994 and April 22th, 2019 through searching PubMed, Web of Science and China national knowledge infrastructure (CNKI). Hazard ratios (HRs) coupled with 95% confidence intervals (95% CIs) were used to assess the relationship of Tiam1 expression and overall survival (OS), and disease-free survival (DFS). RESULTS A total of 2647 patients with solid cancers in 20 studies were enrolled in our meta-analysis eventually. The pooled results showed that Tiam1 high expression was closely correlated with poor OS (HR = 2.17, 95% CI: 1.80-2.61, P = .000) and DFS (pooled HR = 1.95, 95% CI = 1.58-2.40, P = .000). Moreover, our subgroup analysis and sensitivity analysis demonstrated the reliability and stability of our pooled results. CONCLUSION In conclusion, this meta-analysis confirmed that Tiam1 higher expression positively correlated with OS and DFS, suggesting that Tiam1 may act as a valuable prognostic predictor and therapeutic target for patients with solid cancers. Nevertheless, in future more homogeneous and prospective studies should be performed to further support our findings.
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21
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Liu Y, Liu Q, Chen S, Liu Y, Huang Y, Chen P, Li X, Gao G, Xu K, Fan S, Zeng Z, Xiong W, Tan M, Li G, Zhang W. APLNR is involved in ATRA‐induced growth inhibition of nasopharyngeal carcinoma and may suppress EMT through PI3K‐Akt‐mTOR signaling. FASEB J 2019; 33:11959-11972. [DOI: 10.1096/fj.201802416rr] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Yi Liu
- Department of Medical Laboratory ScienceThe Third Xiangya HospitalCentral South UniversityChangshaChina
| | - Qingluan Liu
- Department of Medical Laboratory ScienceThe Third Xiangya HospitalCentral South UniversityChangshaChina
| | - Shumin Chen
- Department of HematologyPeking University People's HospitalBeijingChina
| | - Yijun Liu
- Department of Medical Laboratory ScienceThe Third Xiangya HospitalCentral South UniversityChangshaChina
| | - Yumei Huang
- Department of Medical Laboratory ScienceThe Third Xiangya HospitalCentral South UniversityChangshaChina
| | - Pan Chen
- Hunan Cancer Hospital‐The Affiliated Cancer Hospital of Xiangya School of MedicineCentral South UniversityChangshaChina
| | - Xiayu Li
- The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of EducationCancer Research Institute, Central South UniversityChangshaChina
| | - Ge Gao
- Department of Medical Laboratory ScienceThe Third Xiangya HospitalCentral South UniversityChangshaChina
| | - Keqian Xu
- Department of Medical Laboratory ScienceThe Third Xiangya HospitalCentral South UniversityChangshaChina
| | - Songqing Fan
- Department of PathologyThe Second Xiangya HospitalCentral South UniversityChangshaChina
| | - Zhaoyang Zeng
- The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of EducationCancer Research Institute, Central South UniversityChangshaChina
| | - Wei Xiong
- The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of EducationCancer Research Institute, Central South UniversityChangshaChina
| | - Ming Tan
- The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of EducationCancer Research Institute, Central South UniversityChangshaChina
- Mitchell Cancer Institute, USAHealth‐University of South AlabamaMobileAlabamaUSA
| | - Guiyuan Li
- The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of EducationCancer Research Institute, Central South UniversityChangshaChina
| | - Wenling Zhang
- Department of Medical Laboratory ScienceThe Third Xiangya HospitalCentral South UniversityChangshaChina
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22
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Yang C, Ma C, Li Y, Mo P, Yang Y. High Tiam1 expression predicts positive lymphatic metastasis and worse survival in patients with malignant solid tumors: a systematic review and meta-analysis. Onco Targets Ther 2019; 12:5925-5936. [PMID: 31413590 PMCID: PMC6663076 DOI: 10.2147/ott.s191571] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2018] [Accepted: 05/10/2019] [Indexed: 12/16/2022] Open
Abstract
Background Many studies have explored the prognostic value of T-cell lymphoma invasion and metastasis inducing factor 1 (Tiam1) and its association with lymphatic metastasis in malignant solid tumors, but the conclusions remain controversial. Therefore, we performed a meta-analysis to systematically assess the prognostic value of Tiam1 expression and its association with lymphatic metastasis in malignant solid tumors. Methods We searched eligible studies in PubMed, Web of Science and EMBASE databases (from inception up to October 2018). The combined HR with 95% CI was used to estimate the prognostic value of Tiam1 expression. The correlation between Tiam1 expression and lymphatic metastasis was assessed using the combined odds ratio (OR) with 95% CI. Results A total of 17 studies with 2,228 patients with solid tumors were included in this meta-analysis. The overall estimated results showed that high Tiam1 expression was significantly associated with shorter overall survival (HR= 2.08, 95% CI: 1.62-2.68, P<0.01), and disease-free survival (HR = 1.86, 95% CI: 1.49-2.32, P<0.01). Besides, we also found that there was a close relationship between high Tiam1 expression and positive lymphatic metastasis (OR=2.63; 95% CI: 1.79-3.84, P<0.01). Conclusion High Tiam1 expression was significantly associated with shorter survival and positive lymphatic metastasis in patients with malignant solid tumors. Therefore, Tiam1 may be a promising prognostic biomarker and an effective therapeutic target for malignant solid tumors.
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Affiliation(s)
- Caixia Yang
- Department of Stomatology, Qinghai province people's Hospital, Qinghai, People's Republic of China
| | - Chenlin Ma
- Department of Stomatology, Qinghai province people's Hospital, Qinghai, People's Republic of China
| | - Yingchun Li
- Department of Stomatology, Qinghai province people's Hospital, Qinghai, People's Republic of China
| | - Peng Mo
- Department of Stomatology, Qinghai province people's Hospital, Qinghai, People's Republic of China
| | - Yusheng Yang
- Department of Pathology, Ninbo Yinzhou No. 2 Hospital, Ninbo, People's Republic of China
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23
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Chen S, Li J, Zhou P, Zhi X. SPTBN1 and cancer, which links? J Cell Physiol 2019; 235:17-25. [PMID: 31206681 DOI: 10.1002/jcp.28975] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Accepted: 05/28/2019] [Indexed: 12/16/2022]
Abstract
SPTBN1 is a dynamic intracellular nonpleckstrin homology-domain protein, functioning as a transforming growth factor-β signal transducing adapter protein which is necessary to form Smad3/Smad4 complex. Recently SPTBN1 is considered to be associated with many kinds of cancers. SPTBN1 expression and function differ between different tumor states or types. This review summarizes the recent advances in the expression patterns of SPTBN1 in cancers, and in understanding the mechanisms by which SPTBN1 affects the occurrence, progression, and metastasis of cancer. Identifying SPTBN1 expression and function in cancers will contribute to the clinical diagnosis and treatment of cancer and the investigation of anticancer drugs.
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Affiliation(s)
- Shuyi Chen
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Jiajia Li
- Department of Gynecology, Affiliated Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
| | - Ping Zhou
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Xiuling Zhi
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fudan University, Shanghai, China
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24
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Reyes I, Reyes N, Suriano R, Iacob C, Suslina N, Policastro A, Moscatello A, Schantz S, Tiwari RK, Geliebter J. Gene expression profiling identifies potential molecular markers of papillary thyroid carcinoma. Cancer Biomark 2019; 24:71-83. [PMID: 30614796 DOI: 10.3233/cbm-181758] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND Thyroid cancer is the most common endocrine malignancy worldwide, with the predominant form papillary thyroid carcinoma (PTC) representing approximately 80% of cases. OBJECTIVE This study was addressed to identify potential genes and pathways involved in the pathogenesis of PTC and potential novel biomarkers for this disease. METHODS Gene expression profiling was carried out by DNA microarray technology. Validation of microarray data by qRT-PCR, western blot, and enzyme linked immunosorbent assay was also performed in a selected set of genes and gene products, with the potential to be used as diagnostic or prognostic biomarkers, such as those associated with cell adhesion, extracellular matrix (ECM) remodeling and immune/inflammatory response. RESULTS In this study we found that upregulation of extracellular activities, such as proteoglycans, ECM-receptor interaction, and cell adhesion molecules, were the most prominent feature of PTC. Significantly over-expressed genes included SDC1 (syndecan 1), SDC4 (syndecan 4), KLK7 (kallikrein-related peptidase 7), KLK10 (kallikrein-related peptidase 10), SLPI (secretory leukocyte peptidase inhibitor), GDF15 (growth/differentiation factor-15), ALOX5 (arachidonate 5-lipoxygenase), SFRP2 (secreted Frizzled-related protein 2), among others. Further, elevated KLK10 levels were detected in patients with PTC. Many of these genes belong to KEGG pathway "Proteoglycans in cancer". CONCLUSIONS Using DNA microarray analysis allowed the identification of genes and pathways with known important roles in malignant transformation, and also the discovery of novel genes that may be potential biomarkers for PTC.
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Affiliation(s)
- Ismael Reyes
- Department of Microbiology and Immunology, New York Medical College, Valhalla, NY, USA
| | - Niradiz Reyes
- Department of Microbiology and Immunology, New York Medical College, Valhalla, NY, USA.,Genetics and Molecular Biology Research Group, University of Cartagena, Cartagena, Colombia
| | | | - Codrin Iacob
- New York Eye and Ear Infirmary, New York, NY, USA
| | - Nina Suslina
- New York Eye and Ear Infirmary, New York, NY, USA
| | - Anthony Policastro
- Department of Microbiology and Immunology, New York Medical College, Valhalla, NY, USA
| | - Augustine Moscatello
- Department of Microbiology and Immunology, New York Medical College, Valhalla, NY, USA
| | | | - Raj K Tiwari
- Department of Microbiology and Immunology, New York Medical College, Valhalla, NY, USA
| | - Jan Geliebter
- Department of Microbiology and Immunology, New York Medical College, Valhalla, NY, USA
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25
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Zhang LY, Chen Y, Jia J, Zhu X, He Y, Wu LM. MiR-27a promotes EMT in ovarian cancer through active Wnt/𝜷-catenin signalling by targeting FOXO1. Cancer Biomark 2019; 24:31-42. [PMID: 30614794 DOI: 10.3233/cbm-181229] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND Ovarian cancer (OC) is the fifth most common type of cancer in women worldwide. MiR-27a plays an important role in the development of ovarian cancer. However, the exact function and molecular mechanism of miR-27a in epithelial-mesenchymal transition (EMT) has not been thoroughly elucidated to date. METHODS Quantitative real-time PCR (qRT-PCR) was used to determine the expression of miR-27a and FOXO1 mRNA in ovarian tissues and cells. The function of miR-27a in ovarian cancer was investigated through overexpression and knockdown of miR-27a in vitro. Wound healing and Transwell assays were performed to evaluate the migration and invasive capacity of the cells. A luciferase reporter assay was conducted to confirm the interaction between miR-27a and FOXO1. Western blotting was used to evaluate FOXO1, EMT and Wnt/β-catenin relative protein expression. RESULTS In our study, we found that the mRNA expression level of miR-27a was significantly higher in ovarian cancer tissues and in HO8910 and OV90 cells. Functional experiments showed that miR-27a overexpression potentiated the migration and invasion of HO8910 and OV90 cells, while miR-27a inhibition reduced the cells' migration and invasion. Moreover, miR-27a upregulated the expression of mesenchymal cell markers and downregulated the expression of epithelial cell markers, which were restored via silencing of miR-27a expression. Subsequently, miR-27a was found to directly target and suppress the expression of FOXO1. Finally, we demonstrated that miR-27a promoted the progression of ovarian cancer cells and induced the process of EMT via the Wnt/β-catenin signalling pathway through inhibition of FOXO1. CONCLUSIONS Taken together, these results indicate that targeting miR-27a and FOXO1 could represent a strategy for anticancer therapy in ovarian cancer.
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Affiliation(s)
- Li-Ya Zhang
- Department of Gynecology, Huizhou No. 2 Women's and Children's Healthcare Hospital, Huizhou, Guangdong 516001, China
| | - Yuan Chen
- Huizhou College of Life Sciences, Huizhou, Guangdong 516001, China
| | - Jue Jia
- Department of Gynecology, Shandong Provincial Tumor Hospital, Jinan, Shandong 250117, China
| | - Xi Zhu
- Department of Gynecology, Shenyang Maternal and Child Hospital, Shenyang, Liaoning 110000, China
| | - Yan He
- Department of Gynecology, Huizhou No. 2 Women's and Children's Healthcare Hospital, Huizhou, Guangdong 516001, China
| | - Li-Ming Wu
- Department of Gynecology, Huizhou No. 2 Women's and Children's Healthcare Hospital, Huizhou, Guangdong 516001, China
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26
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Zhu G, Zhang Y, Wang Q, Che S, Yang Y, Chen L, Lin Z. The prognostic value of Tiam1 correlates with its roles in epithelial-mesenchymal transition progression and angiogenesis in lung adenocarcinoma. Cancer Manag Res 2019; 11:1741-1752. [PMID: 30863182 PMCID: PMC6388966 DOI: 10.2147/cmar.s195093] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Background Tiam1 has been identified as an oncogene and acts as an activator of GTPase Rac. Tiam1 was reported to be a promoter of cancer progression in various cancer types, while in lung adenocarcinoma, its mechanism of action is poorly understood. Materials and Methods Immunohistochemistry staining and Western blot assay were used to determine Tiam1 expression in lung adenocarcinoma tissues, and its association with prognosis was determined by statistical analysis. We depleted Tiam1 in both A549 and H1975 cancer cell lines. Carboxyfluorescein diacetate succinimidyl ester staining and colony formation assays were used to evaluate its impact on cell proliferation ability after depletion. Transwell migration assay and wound healing assays were performed to determine its impact on migration ability of both cell lines. Western blot assay and immunofluorescence staining were used to analyze the association between Tiam1 and epithelial-mesenchymal transition (EMT) progression. Tube formation assay and vasculogenic mimicry assay were used to show the impact of Tiam1 depletion on cancer angiogenesis. Results In this study, we demonstrated that Tiam1 overexpression in lung adenocarcinoma was significantly associated with advanced tumor grade and poor prognosis. In vitro assays indicated that Tiam1 depletion significantly inhibited cell proliferation, colony formation, and migration capacities in A549 and H1975 cells. Further investigations revealed that Tiam1 plays an important role in EMT program enhancement, angiogenesis, and accelerated tumor progression. Notably, Tiam1 depletion in cancer cells strongly inhibited human umbilical vein endothelial cell angiogenesis and vasculogenic mimicry capacities of both cancer cell lines. Conclusion Tiam1 overexpression is associated with lung adenocarcinoma progression and may indicate poor prognosis. Tiam1 accelerated tumor progression due to EMT and angiogenesis enhancement. Our data may provide a novel therapeutic target for lung adenocarcinoma.
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Affiliation(s)
- Guang Zhu
- Department of Pathology and Cancer Research Center, Yanbian University Medical College, Yanji 133002, China, .,Key Laboratory of the Science and Technology Department of Jilin Province, Yanji 133002, China,
| | - Yuan Zhang
- Department of Pathology and Cancer Research Center, Yanbian University Medical College, Yanji 133002, China, .,Key Laboratory of the Science and Technology Department of Jilin Province, Yanji 133002, China,
| | - Qianrong Wang
- Department of Pathology and Cancer Research Center, Yanbian University Medical College, Yanji 133002, China, .,Key Laboratory of the Science and Technology Department of Jilin Province, Yanji 133002, China,
| | - Shuanlong Che
- Department of Pathology and Cancer Research Center, Yanbian University Medical College, Yanji 133002, China, .,Key Laboratory of the Science and Technology Department of Jilin Province, Yanji 133002, China,
| | - Yang Yang
- Department of Pathology and Cancer Research Center, Yanbian University Medical College, Yanji 133002, China, .,Key Laboratory of the Science and Technology Department of Jilin Province, Yanji 133002, China,
| | - Liyan Chen
- Department of Pathology and Cancer Research Center, Yanbian University Medical College, Yanji 133002, China, .,Key Laboratory of the Science and Technology Department of Jilin Province, Yanji 133002, China,
| | - Zhenhua Lin
- Department of Pathology and Cancer Research Center, Yanbian University Medical College, Yanji 133002, China, .,Key Laboratory of the Science and Technology Department of Jilin Province, Yanji 133002, China,
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Zhang G, Zhang G. Upregulation of FoxP4 in HCC promotes migration and invasion through regulation of EMT. Oncol Lett 2019; 17:3944-3951. [PMID: 30930991 DOI: 10.3892/ol.2019.10049] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2018] [Accepted: 11/16/2018] [Indexed: 12/21/2022] Open
Abstract
Previous studies have indicated that FoxP1, FoxP2 and FoxP3 play important roles in hepatocellular carcinoma (HCC). However, the effect of FoxP4 in HCC requires further elucidation. The aim of the present study was to explore the roles of FoxP4 in HCC and further decipher the detailed mechanism. In present study, it was found that FoxP4, which is overexpressed in HCC tissues and cell lines, facilitated EMT in HCC cell lines through regulation of Slug. First, increased expression of FoxP4 was identified in 110 pairs of human HCC tumor and their adjacent normal tissues. In addition, the association between FoxP4 expression and clinicopathological features of HCC patients indicated that FoxP4 played vital roles in HCC development. Subsequently, gain- and loss-of-function experiments indicated that FoxP4 promoted cellular proliferation, migration as well invasion. In addition, EMT, a key mechanism during cancer metastasis, was regulated by FoxP4. Furthermore, ChIP and qChIP as well as luciferase reporter assays indicated that Slug, an EMT-associated transcription factor, was transcriptionally regulated by FoxP4. In conclusion, FoxP4 functioned as a tumor promoter in HCC cells by transcriptionally regulating Slug, and the present study highlighted the potential effects of FoxP4 on the prognosis and treatment of HCC.
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Affiliation(s)
- Gang Zhang
- Department of Liver Diseases, Rizhao Hospital of Traditional Chinese Medicine, Rizhao, Shandong 276800, P.R. China
| | - Guangye Zhang
- Department of Liver Diseases, Rizhao Hospital of Traditional Chinese Medicine, Rizhao, Shandong 276800, P.R. China
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28
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Loss of MADD expression inhibits cellular growth and metastasis in anaplastic thyroid cancer. Cell Death Dis 2019; 10:145. [PMID: 30760700 PMCID: PMC6374448 DOI: 10.1038/s41419-019-1351-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Revised: 12/05/2018] [Accepted: 12/17/2018] [Indexed: 02/07/2023]
Abstract
Anaplastic Thyroid Cancer (ATC) is an aggressive malignancy with limited therapeutic options and dismal patient survival. We have previously shown MADD to be differentially overexpressed in multiple cancer histologies and to contribute to tumor cell growth and survival. Therefore, we targeted MADD by gene silencing, explored its effect on cellular proliferation and metastases and examined its therapeutic potential in an orthotopic ATC model in athymic nude mice. When compared to untreated control and scramble siRNA, MADD siRNA treatment inhibited the proliferative capacity of 8505C, C643 and HTH7 cells in vitro and 8505C-derived-orthotopic tumor growth in vivo. MADD ablation caused a significant reduction in cellular migration and invasion potential; clonogenic capacity; as well as, mitochondrial length and potential in vitro. This MADD siRNA-induced anti-migratory/invasive effect corresponded with inhibition of epithelial–mesenchymal transition (EMT) and Wnt signaling. Mechanistically, MADD siRNA inhibited TNFα induced activation of pERK, pGSK3β and β-catenin, suggesting that MADD knockdown might exert its anti-migratory/invasive effects, by blocking TNFα/ERK/GSK3β axis. MADD siRNA can inhibit β-catenin nuclear translocation and consequently, the expression of its target genes in ATC cells. In in vivo experiments, along with tumor regression, MADD siRNA treatment also decreased evidence of lung metastases. Immunohistochemically, MADD siRNA-treated tumor tissues exhibited a reduction in Ki67 and N-Cadherin expression, and an increase in E-Cadherin expression. In conclusion, we show the crucial role of MADD in ATC tumorigenesis and metastasis and its potential implications as a molecular target for ATC therapy.
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29
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Jia YC, Wang JY, Liu YY, Li B, Guo H, Zang AM. LncRNA MAFG-AS1 facilitates the migration and invasion of NSCLC cell via sponging miR-339-5p from MMP15. Cell Biol Int 2019; 43:384-393. [PMID: 30599080 DOI: 10.1002/cbin.11092] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Accepted: 12/21/2018] [Indexed: 01/01/2023]
Abstract
Non-small-cell carcinoma (NSCLC) is the most common cancer along with high mortality rate worldwide. In the present study, our data showed that lncRNA MAF BZIP Transcription Factor G Antisense RNA 1 (MAFG-AS1) was over-expressed in NSCLC tissues and cell lines. Overexpression of MAFG-AS1 promoted the migration, invasion and enhanced epithelial-mesenchymal transition (EMT) of NSCLC cell. In addition, miR-339-5p was predicted to be a target of MAFG-AS1 and the level of miR-339-5p was down-regulated in NSCLC. Over-expression of MAFG-AS1 significantly decreased the level of miR-339-5p in NSCLC cell. Moreover, the matrix metalloproteinase 15 (MMP15) was identified to be a target of miR-339-5p. The level of MMP15 was negatively regulated by miR-339-5p whereas positively controlled by MAFG-AS1. In addition, up-regulation of miR-339-5p neutralized the promoting impact of MAFG-AS1 on the migration, invasion and EMT of NSCLC cell. Finally, the xenograft model suggested that MAFG-AS1 promoted the metastasis of NSCLC cell in vivo. Altogether, we proved that MAFG-AS1-miR-339-5p-MMP15 axis might be a promising therapeutic target for the treatment of patients with NSCLC.
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Affiliation(s)
- You Chao Jia
- Hebei Key Laboratory of Cancer Radiotherapy and Chemotherapy, Department of Medical Oncology, Affiliated Hospital of Hebei University, Baoding, Hebei 071000, China
| | | | - Yu Ying Liu
- Department of Oncology, Dezhou People's Hospital, Dezhou, Shandong, 253014, China
| | - Bin Li
- Thoracic surgery, Dezhou People's Hospital, Dezhou, Shandong, 253014, China
| | - Hui Guo
- Pneumology Department, Dezhou People's Hospital, No. 1751 Xinhu Street, Dezhou, Shandong, 253014, China
| | - Ai Min Zang
- Hebei Key Laboratory of Cancer Radiotherapy and Chemotherapy, Department of Medical Oncology, Affiliated Hospital of Hebei University, Baoding, Hebei 071000, China
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30
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Liu C, Xu J, Wen F, Yang F, Li X, Geng D, Li L, Chen J, Zheng J. Upregulation of syncytin-1 promotes invasion and metastasis by activating epithelial-mesenchymal transition-related pathway in endometrial carcinoma. Onco Targets Ther 2018; 12:31-40. [PMID: 30588028 PMCID: PMC6301305 DOI: 10.2147/ott.s191041] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Background Endometrial carcinoma (EC) is the most common and lethal malignancy worldwide. Syncytin-1 is expressed in multiple types of cancer. However, the expression pattern and potential mechanism of syncytin-1 and its clinical significance in EC remain unclear. Materials and methods We analyzed 130 primary EC specimens from Binzhou Medical University to investigate the clinical role of syncytin-1 in EC by using different advanced pathological stages of EC tissues. Kaplan–Meier analysis was used to measure the overall survival of EC patients. Syncytin-1 expression was analyzed by Western blot assays in HECCL-1 and RL-95-2 cells. Cell proliferation, cycle, migration, and invasion abilities were detected by cell counting kit-8, flow cytometry, and transwell assays. AKT and epithelial-mesenchymal transition (EMT)-related genes were assessed by Western blot assays in HECCL-1 and RL-95-2 cells. Results Syncytin-1 was upregulated in EC tissues and cells and was related to clinical stages, expression of ER, Ki-67, and overall survival of EC. Functional research revealed that overexpression of syncytin-1 can promote cell proliferation, cell cycle progression, and the migration and invasion of EC cells. Suppression of syncytin-1 expression also inhibited cell proliferation and apoptosis in vitro. The expression of syncytin-1 substantially improved the expression levels of EMT-related genes (vimentin, E-cadherin, slug, and ZEB1) but significantly decreased those of epithelial markers (N-cadherin and snail). In addition, we found that syncytin-1 was not correlated with AKT-related genes (total-AKT, p-AKT, and vinculin). Conclusion Our results suggested that syncytin-1 may promote aggressive behavior and can serve as a novel prognostic biomarker for EC. Our study provides new insights into the regulatory mechanism of EMT signaling.
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Affiliation(s)
- Changmin Liu
- Department of Oncology, Binzhou Medical University Hospital, Binzhou 256603, Shandong, China
| | - Jiqin Xu
- Department of Obstetrics and Gynecology, Shuyang People's Hospital, Affiliated to Xuzhou Medical University, Jiangsu, China
| | - Feifei Wen
- Department of Pathology, Binzhou Medical University Hospital, Binzhou 256603, Shandong, China
| | - Fangfang Yang
- Department of Oncology, Binzhou Medical University Hospital, Binzhou 256603, Shandong, China
| | - Xiaoming Li
- Department of Hepatobiliary Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong, China
| | - Dianzhong Geng
- Department of Oncology, Binzhou Medical University Hospital, Binzhou 256603, Shandong, China
| | - Lei Li
- Department of Oncology, Binzhou Medical University Hospital, Binzhou 256603, Shandong, China
| | - Jiming Chen
- Department of Obstetrics and Gynecology, The Affiliated Changzhou No 2 People's Hospital of Nanjing Medical University, Changzhou 213000, Jiangsu, China,
| | - Jing Zheng
- Department of Clinical Medicine Laboratory, Binzhou Medical University Hospital, Binzhou 256603, Shandong, China,
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31
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Ren L, Xu Y, Qin G, Liu C, Yan Y, Zhang H. miR-199b-5p-Stonin 2 axis regulates metastases and epithelial-to-mesenchymal transition of papillary thyroid carcinoma. IUBMB Life 2018; 71:28-40. [PMID: 30325582 DOI: 10.1002/iub.1889] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Accepted: 05/22/2018] [Indexed: 01/06/2023]
Abstract
Papillary thyroid carcinoma is one of the most fatal malignant endocrine tumors, and the prognosis remains poor because of the lack of effective therapeutic targets. In this study, we demonstrated that the level of miR-199b-5p was markedly downregulated in papillary thyroid carcinoma. The ectopic expression level of miR-199b-5p in papillary thyroid carcinoma cell B-CPAP could inhibit growth, migration, and invasion as well as epithelial-mesenchymal transition (EMT) and decreased cell metastasis in vivo, but silencing miR-199b-5p caused a contradictory outcome. Additionally, Stonin 2 (STON2) was identified as a direct target gene of miR-199b-5p. Consistent with the downregulation of miR-199b-5p, the overexpression of STON2 induced the growth, migration and invasion of B-CPAP cells. It was also demonstrated that miR-199b-5p suppressed papillary thyroid carcinoma cell aggressiveness by targeting STON2. Furthermore, the overexpression of miR-199b-5p inhibited cell proliferation, promoted apoptosis, and increased the chemo-sensitivity of thyroid carcinoma B-CPAP cells toward the chemotherapy drug paclitaxel. Finally, in vivo experiments further demonstrated that miR-199b-5p suppressed tumor growth in nude mice. Thus, this study revealed that miR-199b-5p functions as antioncogene miRNA in papillary thyroid carcinoma cells and that the miR-199b-5p/STON2 axis might be a potential treatment option for papillary thyroid carcinoma. © 2018 IUBMB Life, 71(1):28-40, 2019.
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Affiliation(s)
- Lei Ren
- Department of Endocrinology, the First Affiliated Hospital of ZhengZhou University, Zhengzhou, Henan, 450002, China
| | - Yapei Xu
- Department of Nephrology, the Third People's hospital of ZhengZhou, Zhengzhou, Henan, 450000, China
| | - Guijun Qin
- Department of Endocrinology, the First Affiliated Hospital of ZhengZhou University, Zhengzhou, Henan, 450002, China
| | - Cong Liu
- Department of Endocrinology, ShengJing Hospital of China medical University, Shenyang, Liaoning, 110022, China
| | - Yushan Yan
- Department of Endocrinology, the First Affiliated Hospital of ZhengZhou University, Zhengzhou, Henan, 450002, China
| | - Huijuan Zhang
- Department of Endocrinology, the First Affiliated Hospital of ZhengZhou University, Zhengzhou, Henan, 450002, China
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32
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Zhang X, Liu L, Deng X, Li D, Cai H, Ma Y, Jia C, Wu B, Fan Y, Lv Z. MicroRNA 483-3p targets Pard3 to potentiate TGF-β1-induced cell migration, invasion, and epithelial-mesenchymal transition in anaplastic thyroid cancer cells. Oncogene 2018; 38:699-715. [PMID: 30171257 PMCID: PMC6756112 DOI: 10.1038/s41388-018-0447-1] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2017] [Revised: 07/09/2018] [Accepted: 07/14/2018] [Indexed: 01/06/2023]
Abstract
Anaplastic thyroid cancer (ATC) is associated with poor prognosis and is often untreatable. MicroRNA 483-3p (miR-483) and partitioning-defective 3 (Pard3), a member of the Pard family, have functions and regulatory mechanisms in ATC. The abnormal regulation of miR-483 may play an important role in tumorigenesis, and Par3 is known to regulate cell polarity, cell migration, and cell division. Tumor proliferation promoted by the regulation of miRNA expression can be regulated in thyroid cancer by upregulating transforming growth factor-β1 (TGF-β1), which is thought to interact with Pard3. When compared with adjacent non-tumor tissues, we found that miR-483 was upregulated and Pard3 was downregulated in 80 thyroid tumor samples. Disease-free survival was decreased when expression of miR-483 was upregulated and Pard3 expression was downregulated. Cell growth, migration, and invasion were induced by overexpression of miR-483. However, knockdown of miR-483 resulted in a loss of cell invasion and viability, both in vitro and in vivo. The expression of Pard3 was increased by the inhibition of miR-483, but TGF-β1-induced cell migration and invasion were decreased by miR-483 inhibition. A dual-luciferase reporter assay determined that Pard3 expression was downregulated when targeted with miR-483. The epithelial–mesenchymal transition (EMT), as well as Tiam1-Rac signaling, was induced by TGF-β1, which was decreased by the overexpression of Pard3. Pard3 decreased the inhibition of EMT and Tiam-Rac1 signaling, which resulted from transfection of ATC cells with miR-483. Overall, the results showed that downregulation of Pard3 resulted in increased cell invasion and EMT in ATC, which was promoted by treatment with miR-483. These findings suggest novel therapeutic targets and treatment strategies for this disease.
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Affiliation(s)
- Xiaoping Zhang
- Department of Nuclear Medicine, Shanghai Tenth People's Hospital, Tongji University, Shanghai, 200072, China.,Shanghai Center of Thyroid Diseases, Shanghai, 200072, China
| | - Lin Liu
- Department of Nuclear Medicine, Shanghai Tenth People's Hospital, Tongji University, Shanghai, 200072, China.,Shanghai Center of Thyroid Diseases, Shanghai, 200072, China
| | - Xianzhao Deng
- Center of Thyroid, Department of General Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, China
| | - Dan Li
- Department of Nuclear Medicine, Shanghai Tenth People's Hospital, Tongji University, Shanghai, 200072, China.,Shanghai Center of Thyroid Diseases, Shanghai, 200072, China
| | - Haidong Cai
- Department of Nuclear Medicine, Shanghai Tenth People's Hospital, Tongji University, Shanghai, 200072, China.,Shanghai Center of Thyroid Diseases, Shanghai, 200072, China
| | - Yushui Ma
- Department of Nuclear Medicine, Shanghai Tenth People's Hospital, Tongji University, Shanghai, 200072, China.,Shanghai Center of Thyroid Diseases, Shanghai, 200072, China
| | - Chengyou Jia
- Department of Nuclear Medicine, Shanghai Tenth People's Hospital, Tongji University, Shanghai, 200072, China.,Shanghai Center of Thyroid Diseases, Shanghai, 200072, China
| | - Bo Wu
- Center of Thyroid, Department of General Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, China.
| | - Youben Fan
- Center of Thyroid, Department of General Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, China.
| | - Zhongwei Lv
- Department of Nuclear Medicine, Shanghai Tenth People's Hospital, Tongji University, Shanghai, 200072, China. .,Shanghai Center of Thyroid Diseases, Shanghai, 200072, China.
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Ding M, Li Y, Yang Y, Zhu K, Che S, Lin Z, Chen L. Elevated expression of Tiam1 is associated with poor prognosis and promotes tumor progression in pancreatic cancer. Onco Targets Ther 2018; 11:4367-4375. [PMID: 30100742 PMCID: PMC6067591 DOI: 10.2147/ott.s171425] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Objective T-cell lymphoma invasion and metastasis inducing factor 1 (Tiam1) is known to be involved in tumor progression. However, its molecular roles and mechanism in pancreatic ductal adenocarcinoma (PDAC) remain unclear. The purpose of this study is to determine Tiam1 expression levels and investigate its underlying molecular mechanism in PDAC. Materials and methods Tiam1 protein expression levels in PDAC tissues were examined using immunohistochemistry. Tiam1 expression was confirmed in pancreatic cancer (PC) cells by Western blot and immunofluorescence staining. Tiam1-silenced PC cells were created using short interfering RNA. Subsequently, colony formation, scratch, and migration and invasion assays were carried out to explore the molecular mechanisms of Tiam1 in PC cells. Results The results indicated that Tiam1 expression was significantly higher in PDAC tissues than in paired non-tumor tissues, and overexpression of Tiam1 was significantly correlated with histological grade (P=0.040) and lymph node metastasis (P=0.031) in PDAC. The PDAC patients with high Tiam1 expression had significantly lower 5-year overall survival than patients with low Tiam1 expression. More importantly, univariate and multivariate analysis suggested that Tiam1 expression, along with lymph node metastasis, is a significant independent prognostic factor for patients with PDAC. Furthermore, we also demonstrated that the downregulation of Tiam1 was associated with decreased cell proliferation and reduced migratory and invasive capability. Conclusion High expression of Tiam1 plays a significant role in the progression of PDAC and may be a potential biomarker of poor prognosis as well as a therapeutic target.
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Affiliation(s)
- Mina Ding
- Department of Biochemistry and Molecular Biology, Yanbian University Medical College, Yanji 133002, China,
| | - Yue Li
- Department of Biochemistry and Molecular Biology, Yanbian University Medical College, Yanji 133002, China,
| | - Yang Yang
- Department of Pathology and Cancer Research Center, Yanbian University Medical College, Yanji 133002, China
| | - Kun Zhu
- Department of Biochemistry and Molecular Biology, Yanbian University Medical College, Yanji 133002, China,
| | - Shuanlong Che
- Department of Pathology and Cancer Research Center, Yanbian University Medical College, Yanji 133002, China
| | - Zhenhua Lin
- Department of Pathology and Cancer Research Center, Yanbian University Medical College, Yanji 133002, China.,Department of Jilin Province, Key Laboratory of the Science and Technology, Yanji 133002, China,
| | - Liyan Chen
- Department of Biochemistry and Molecular Biology, Yanbian University Medical College, Yanji 133002, China, .,Department of Jilin Province, Key Laboratory of the Science and Technology, Yanji 133002, China,
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