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Supuramanian SS, Dsa S, Harihar S. Molecular interaction of metastasis suppressor genes and tumor microenvironment in breast cancer. EXPLORATION OF TARGETED ANTI-TUMOR THERAPY 2023; 4:912-932. [PMID: 37970212 PMCID: PMC10645471 DOI: 10.37349/etat.2023.00173] [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: 02/27/2023] [Accepted: 08/03/2023] [Indexed: 11/17/2023] Open
Abstract
Breast cancer (BC) is a leading cause of cancer-related deaths in women worldwide where the process of metastasis is a major contributor to the mortality associated with this disease. Metastasis suppressor genes are a group of genes that play a crucial role in preventing or inhibiting the spread of cancer cells. They suppress the metastasis process by inhibiting colonization and by inducing dormancy. These genes function by regulating various cellular processes in the tumor microenvironment (TME), such as cell adhesion, invasion, migration, and angiogenesis. Dysregulation of metastasis suppressor genes can lead to the acquisition of an invasive and metastatic phenotype and lead to poor prognostic outcomes. The components of the TME generally play a necessary in the metastasis progression of tumor cells. This review has identified and elaborated on the role of a few metastatic suppressors associated with the TME that have been shown to inhibit metastasis in BC by different mechanisms, such as blocking certain cell signaling molecules involved in cancer cell migration, invasion, enhancing immune surveillance of cancer cells, and promoting the formation of a protective extracellular matrix (ECM). Understanding the interaction of metastatic suppressor genes and the components of TME has important implications for the development of novel therapeutic strategies to target the metastatic cascade. Targeting these genes or their downstream signaling pathways offers a promising approach to inhibiting the spread of cancer cells and improves patient outcomes.
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Affiliation(s)
| | - Sid Dsa
- Department of Genetic Engineering, SRM Institute of Science and Technology, Kattankulathur 603203, Tamil Nadu, India
| | - Sitaram Harihar
- Department of Genetic Engineering, SRM Institute of Science and Technology, Kattankulathur 603203, Tamil Nadu, India
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Tang B, Qi G, Sun X, Tang F, Yuan S, Wang Z, Liang X, Li B, Yu S, Liu J, Huang Q, Wei Y, Zhai R, Lei B, Guo X, He S. Retraction Note: HOXA7 plays a critical role in metastasis of liver cancer associated with activation of Snail. Mol Cancer 2023; 22:153. [PMID: 37705027 PMCID: PMC10498555 DOI: 10.1186/s12943-023-01855-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/15/2023] Open
Affiliation(s)
- Bo Tang
- Department of Hepatobiliary Surgery, Affiliated Hospital, Guilin Medical University, 541001, Guilin, Guangxi, People's Republic of China
- Laboratory of Liver Injury and Repair Molecular Medicine, Guilin Medical University, 541001, Guilin, Guangxi, People's Republic of China
| | - Guangying Qi
- Department of Pathology and Physiopathology, Guilin Medical University, 541004, Guilin, Guangxi, People's Republic of China
| | - Xiaoyu Sun
- Department of Gastroenterology, First Affiliated Hospital of Dalian Medical University, 116011, Dalian, Liaoning, People's Republic of China
| | - Fang Tang
- Department of Pathology and Physiopathology, Guilin Medical University, 541004, Guilin, Guangxi, People's Republic of China
| | - Shengguang Yuan
- Department of Hepatobiliary Surgery, Affiliated Hospital, Guilin Medical University, 541001, Guilin, Guangxi, People's Republic of China
- Laboratory of Liver Injury and Repair Molecular Medicine, Guilin Medical University, 541001, Guilin, Guangxi, People's Republic of China
| | - Zhenran Wang
- Department of Hepatobiliary Surgery, Affiliated Hospital, Guilin Medical University, 541001, Guilin, Guangxi, People's Republic of China
- Laboratory of Liver Injury and Repair Molecular Medicine, Guilin Medical University, 541001, Guilin, Guangxi, People's Republic of China
| | - Xingsi Liang
- Department of Hepatobiliary Surgery, Affiliated Hospital, Guilin Medical University, 541001, Guilin, Guangxi, People's Republic of China
- Laboratory of Liver Injury and Repair Molecular Medicine, Guilin Medical University, 541001, Guilin, Guangxi, People's Republic of China
| | - Bo Li
- Department of Hepatobiliary Surgery, Affiliated Hospital, Guilin Medical University, 541001, Guilin, Guangxi, People's Republic of China
- Laboratory of Liver Injury and Repair Molecular Medicine, Guilin Medical University, 541001, Guilin, Guangxi, People's Republic of China
| | - Shuiping Yu
- Department of Hepatobiliary Surgery, Affiliated Hospital, Guilin Medical University, 541001, Guilin, Guangxi, People's Republic of China
- Laboratory of Liver Injury and Repair Molecular Medicine, Guilin Medical University, 541001, Guilin, Guangxi, People's Republic of China
| | - Jie Liu
- Department of Hepatobiliary Surgery, Affiliated Hospital, Guilin Medical University, 541001, Guilin, Guangxi, People's Republic of China
- Laboratory of Liver Injury and Repair Molecular Medicine, Guilin Medical University, 541001, Guilin, Guangxi, People's Republic of China
| | - Qi Huang
- Department of Hepatobiliary Surgery, Affiliated Hospital, Guilin Medical University, 541001, Guilin, Guangxi, People's Republic of China
- Laboratory of Liver Injury and Repair Molecular Medicine, Guilin Medical University, 541001, Guilin, Guangxi, People's Republic of China
| | - Yangchao Wei
- Department of Hepatobiliary Surgery, Affiliated Hospital, Guilin Medical University, 541001, Guilin, Guangxi, People's Republic of China
- Laboratory of Liver Injury and Repair Molecular Medicine, Guilin Medical University, 541001, Guilin, Guangxi, People's Republic of China
| | - Run Zhai
- Department of Hepatobiliary Surgery, Affiliated Hospital, Guilin Medical University, 541001, Guilin, Guangxi, People's Republic of China
- Laboratory of Liver Injury and Repair Molecular Medicine, Guilin Medical University, 541001, Guilin, Guangxi, People's Republic of China
| | - Biao Lei
- Department of Hepatobiliary Surgery, Affiliated Hospital, Guilin Medical University, 541001, Guilin, Guangxi, People's Republic of China
- Laboratory of Liver Injury and Repair Molecular Medicine, Guilin Medical University, 541001, Guilin, Guangxi, People's Republic of China
| | - Xinjin Guo
- Department of Clinical Pharmacology, College of Pharmacy, Dalian Medical University, 116011, Dalian, Liaoning, People's Republic of China.
| | - Songqing He
- Department of Hepatobiliary Surgery, Affiliated Hospital, Guilin Medical University, 541001, Guilin, Guangxi, People's Republic of China.
- Laboratory of Liver Injury and Repair Molecular Medicine, Guilin Medical University, 541001, Guilin, Guangxi, People's Republic of China.
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Lin P, Yang J, Wu S, Ye T, Zhuang W, Wang W, Tan T. Current trends of high-risk gene Cul3 in neurodevelopmental disorders. Front Psychiatry 2023; 14:1215110. [PMID: 37575562 PMCID: PMC10416632 DOI: 10.3389/fpsyt.2023.1215110] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Accepted: 07/13/2023] [Indexed: 08/15/2023] Open
Abstract
Cul3 encodes Cullin-3, a core component of the ubiquitin E3 ligase that is involved in protein ubiquitination. Recent studies have identified Cul3 as a high-confidence risk gene in neurodevelopmental disorders (NDDs), especially autism spectrum disorder (ASD). Different strategies have been used to generate animal models with Cul3 deficiency in the central nervous system, including whole-brain knockout (KO), cell-type specific conditional KO (cKO), and brain region-specific knockdown. In this review, we revisited the basic properties of CUL3 and its function under physiological and pathological conditions. Recent clinical studies including case reports and large cohort sequencing studies related to CUl3 in NDDs have been summarized. Moreover, we characterized the behavioral, electrophysiological, and molecular changes in newly developed Cul3 deficiency models. This would guide further studies related to Cul3 in CNS and provide potential therapeutic targets for Cul3-deficiency-induced NDDs, including ASD.
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Affiliation(s)
- Ping Lin
- Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health), Key Laboratory of Alzheimer's Disease of Zhejiang Province, Institute of Aging, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Jie Yang
- Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health), Key Laboratory of Alzheimer's Disease of Zhejiang Province, Institute of Aging, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Shumin Wu
- Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health), Key Laboratory of Alzheimer's Disease of Zhejiang Province, Institute of Aging, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Tong Ye
- Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health), Key Laboratory of Alzheimer's Disease of Zhejiang Province, Institute of Aging, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Wenting Zhuang
- Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health), Key Laboratory of Alzheimer's Disease of Zhejiang Province, Institute of Aging, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Wei Wang
- Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health), Key Laboratory of Alzheimer's Disease of Zhejiang Province, Institute of Aging, Wenzhou Medical University, Wenzhou, Zhejiang, China
- Department of Neuroscience, Baylor College of Medicine, Houston, TX, United States
| | - Tao Tan
- Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health), Key Laboratory of Alzheimer's Disease of Zhejiang Province, Institute of Aging, Wenzhou Medical University, Wenzhou, Zhejiang, China
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Zhou C, Zhang Z, Zhu X, Qian G, Zhou Y, Sun Y, Yu W, Wang J, Lu H, Lin F, Shen Z, Zheng S. N6-Methyladenosine modification of the TRIM7 positively regulates tumorigenesis and chemoresistance in osteosarcoma through ubiquitination of BRMS1. EBioMedicine 2020; 59:102955. [PMID: 32853985 PMCID: PMC7452680 DOI: 10.1016/j.ebiom.2020.102955] [Citation(s) in RCA: 63] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 07/28/2020] [Accepted: 07/30/2020] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Metastasis is the leading cause of death in patients with osteosarcoma. Some of these patients fail to respond to chemotherapy and die of metastasis within a short period. Therefore, it is important to identify novel biomarkers to improve the diagnosis and treatment of osteosarcoma. TRIM7 is a member of the tripartite motif (TRIM) family protein that is involved in various pathological conditions including cancer; however, its role in osteosarcoma remains elusive. METHODS Cell proliferation, invasion and migration were measured by CCK-8 and Transwell. Immunoprecipitation and mass spectrometry analysis were used to identify candidate proteins associated with TRIM7. Immunoprecipitation, immunofluorescence, pull down and ubiquitination assay were performed to examine the regulation between TRIM7 and its candidate protein. m6A modification of TRIM7 was measured by RNA immunoprecipitation. FINDINGS TRIM7 expression was upregulated in osteosarcoma tissues and was an independent risk factor in predicting poor prognosis. TRIM7 regulates osteosarcoma cell migration and invasion through ubiquitination of breast cancer metastasis suppressor 1 (BRMS1). Moreover, chemoresistance was readily observed in osteosarcoma cells and in patient-derived xenograft (PDX) mice with higher TRIM7 levels. Loss of TRIM7 m6A modification was observed in osteosarcoma tissues. METTL3 and YTHDF2 were the main factors involved in the aberrant m6A modification of TRIM7. INTERPRETATION Overall, our findings show that TRIM7 plays a key role in regulating metastasis and chemoresistance in osteosarcoma through ubiquitination of BRMS1. FUNDING This work was financially supported by grants of NSFC (81001192, 81672658 and 81972521) and National Key Research Project of Science and Technology Ministry (2016YFC0106204).
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Affiliation(s)
- Chenliang Zhou
- Department of Oncology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, No.600 Yishan Road, Shanghai 200233, China
| | - Zhichang Zhang
- Department of Orthopedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, China
| | - Xiaoshi Zhu
- Pediatric Intensive Care Unit, Sichuan Provincial People's Hospital, Chengdu 610072, China
| | - Guowei Qian
- Department of Oncology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, No.600 Yishan Road, Shanghai 200233, China
| | - Yan Zhou
- Department of Oncology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, No.600 Yishan Road, Shanghai 200233, China
| | - Yong Sun
- Department of Oncology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, No.600 Yishan Road, Shanghai 200233, China
| | - Wenxi Yu
- Department of Oncology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, No.600 Yishan Road, Shanghai 200233, China
| | - Jiahui Wang
- Department of Oncology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, No.600 Yishan Road, Shanghai 200233, China
| | - Haiyang Lu
- Department of Oncology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, No.600 Yishan Road, Shanghai 200233, China
| | - Feng Lin
- Department of Oncology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, No.600 Yishan Road, Shanghai 200233, China
| | - Zan Shen
- Department of Oncology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, No.600 Yishan Road, Shanghai 200233, China.
| | - Shuier Zheng
- Department of Oncology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, No.600 Yishan Road, Shanghai 200233, China.
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Li K, Yuan C. MicroRNA‑103 modulates tumor progression by targeting KLF7 in non‑small cell lung cancer. Int J Mol Med 2020; 46:1013-1028. [PMID: 32582959 PMCID: PMC7387085 DOI: 10.3892/ijmm.2020.4649] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Accepted: 05/04/2020] [Indexed: 12/13/2022] Open
Abstract
Numerous studies have identified that microRNAs (miRs) play a crucial role in the tumorigenesis of non-small cell lung cancer (NSCLC). However, to the best of our knowledge, the physiological function of miR-103 in NSCLC is not fully understood. Experiments in the present study revealed that miR-103 expression was increased in NSCLC cell lines. In addition, a series of methods, including MTT, colony formation, 5-ethynyl-2′-deoxyuridine, Transwell, wound healing, flow cytometric, reverse transcription-quantitative PCR and western blot assays, were performed, which revealed that overexpression of miR-103 enhanced cell growth, migration, invasion and epithelial-mesenchymal transition (EMT), and suppressed apoptosis of A549 and H1299 cells. Additionally, a dual-luciferase reporter assay indicated that miR-103 directly targets the 3′-untranslated region of Kruppel-like factor 7 (KLF7), and KLF7 expression was negatively regulated by miR-103 expression. Furthermore, the present findings demonstrated that miR-103 promoted EMT via regulating the Wnt/β-catenin signaling pathway in NSCLC. Collectively, the current results demonstrated that miR-103 serves a tumorigenesis role in NSCLC development by targeting KLF7, at least partly via the Wnt/β-catenin signaling pathway. Consequently, these findings indicated that miR-103/KLF7/Wnt/β-catenin may provide a novel insight into underlying biomarkers for improving the diagnosis and treatment of NSCLC.
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Affiliation(s)
- Ke Li
- Department of Oncology, Jiangsu Cancer Hospital and Jiangsu Institute of Cancer Research and The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, Jiangsu 210009, P.R. China
| | - Conghu Yuan
- Department of Anesthesiology, The Third People's Hospital of Yancheng, Yancheng, Jiangsu 224000, P.R. China
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Li J, Yang C, Yang J, Zou L. Down-regulation of CCL17 in cancer-associated fibroblasts inhibits cell migration and invasion of breast cancer through ERK1/2 pathway. Cancer Manag Res 2019; 11:7439-7453. [PMID: 31496803 PMCID: PMC6689663 DOI: 10.2147/cmar.s211651] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Accepted: 06/17/2019] [Indexed: 02/05/2023] Open
Abstract
Objective Cancer-associated fibroblasts (CAFs) in the tumor microenvironment are involved in cancer development and progression, including breast cancer (BC). Up-regulation of CCL17 was observed in BC and predicted a decrease in overall survival, suggesting an important role of CCL17 in BC development. Nonetheless, little is known about the role of CCL17 in the interaction between CAFs and BC. Materials and methods Real-time quantitative PCR, Western blot, and enzyme-linked immunosorbent assay were performed to examine C-C motif chemokine ligand 17 (CCL17) and C-C motif chemokine receptor 4 (CCR4) levels in BC tissues and CAFs. Cell proliferation, migration, and invasion of CAFs co-cultured with or without BC cell lines were measured by Cell Counting Kit-8 and Transwell analysis. Expression of CCL17, CCR4, dual specificity phosphatase 6 (DUSP6), matrix metallopeptidase 13 (MMP13), extracellular signal-regulated kinase (ERK) 1/2, and phosphor-ERK1/2 (p-ERK1/2) in BC cell lines co-cultured with or without CAFs was measured by Western blotting. Results We found that BC tissues and CAFs demonstrated higher levels of CCL17 compared with adjacent-normal breast tissues and adjacent-normal fibroblasts (NFs), respectively. CCL17 expression is correlated with lymph nodes, TNM stage and tumor size of BC patients. CCL17 knockdown significantly inhibited CCL17 release, CCR4 expression, and the cell proliferation of CAFs, while CCL17 overexpression demonstrated an inverse effect in NFs. Co-culture with CAFs induced the increases in cell proliferation, migration, invasion, and the expression of CCL17, CCR4, MMP13, and p-ERK1/2 in MCF-7 and MDA-MB-231 cells were markedly reversed by CCL17 knockdown in CAFs. Meanwhile, co-culture with NFs induced the malignant phenotype of MCF-7 cells was markedly enhanced by CCL17 overexpression in NFs. Moreover, DUSP6, a negative regulator of ERK1/2, was dose-dependent decrease in response to recombinant CCL17 and inhibited cell migration, invasion, MMP13 expression, and ERK1/2 activation in MCF-7 cells. Conclusion The findings of this study suggest that CCL17 may function as a novel biomarker as well as potential therapeutic target against BC and CAF-secreted CCL17 promotes BC cell migration and invasion through the DUSP6-dependent ERK1/2 pathway.
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Affiliation(s)
- Junjie Li
- Department of Medical Oncology, Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, People's Republic of China.,Department of Breast Surgery, Sichuan Cancer Hospital, Chengdu 610041, People's Republic of China
| | - Chunli Yang
- Department of Medical Oncology, Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, People's Republic of China
| | - Jingshi Yang
- Department of Medical Oncology, Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, People's Republic of China
| | - Liqun Zou
- Department of Medical Oncology, Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, People's Republic of China
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Ovarian cancer-derived exosomes promote tumour metastasis in vivo: an effect modulated by the invasiveness capacity of their originating cells. Clin Sci (Lond) 2019; 133:1401-1419. [PMID: 31227603 DOI: 10.1042/cs20190082] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Revised: 06/05/2019] [Accepted: 06/21/2019] [Indexed: 12/13/2022]
Abstract
Exosomes are small nanovesicles that carry bioactive molecules which can be delivered to neighbouring cells to modify their biological functions. Studies have showed that exosomes from ovarian cancer (OVCA) cells can alter the cell migration and proliferation of cells within the tumour microenvironment, an effect modulated by the invasiveness capacity of their originating cells. Using an OVCA cell line xenograph mouse model, we showed that exosomes derived from a high invasiveness capacity cell line (exo-SKOV-3) promoted metastasis in vivo compared with exosomes from a low invasiveness capacity cell line (exo-OVCAR-3). Analysis from anin vivo imaging system (IVIS) revealed that exo-SKOV-3 formed metastatic niches, whereas exo-OVCAR-3 formed colonies of clustered cells close to the site of injection. Interestingly, kinetic parameters showed that the half-maximal stimulatory time (ST50) of tumour growth with exo-OVCAR-3 (4.0 ± 0.31 weeks) was significantly lower compared with the ST50 in mice injected with exo-SKOV-3 (4.5 ± 0.32 weeks). However, the number of metastic nodes in mice injected with exo-SKOV-3 was higher compared with exo-OVCAR-3. Using a quantitative mass spectrometry approach (SWATH MS/MS) followed by bioinformatics analysis using the Ingenuity Pathway Analysis (IPA), we identified a total of 771 proteins. Furthermore, 40 of these proteins were differentially expressed in tumour tissues from mice injected with exo-SKOV-3 compared with exo-OVCAR-3, and associated with Wnt canonical pathway (β-catenin). Finally, we identified a set of proteins which had elevated expression in the circulating exosomes in association with tumour metastasis. These observations suggest that exosomal signalling plays an important role in OVCA metastasis.
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Li G, Li L, Sun Q, Wu J, Ge W, Lu G, Cai M. MicroRNA-3200-5p Promotes Osteosarcoma Cell Invasion via Suppression of BRMS1. Mol Cells 2018; 41:523-531. [PMID: 29890825 PMCID: PMC6030248 DOI: 10.14348/molcells.2018.2200] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2017] [Revised: 01/31/2018] [Accepted: 02/18/2018] [Indexed: 02/07/2023] Open
Abstract
Tumour metastasis is one of the most serious challenges of cancer as it is the major cause of mortality in patients with solid tumours, including osteosarcoma (OS). In this regard, anti-metastatic genes have potential for metastasis inhibition strategies. Recent evidence showed the importance of breast cancer metastasis suppressor 1 (BRMS1) in control of OS invasiveness, but the regulation of BRMS1 in OS remains largely unknown. Here, we used bioinformatics analyses to predict BRMS1-targeting microRNAs (miRNAs), and the functional binding of miRNAs to BRMS1 mRNA was evaluated using a dual luciferase reporter assay. Among all BRMS1-targeting miRNAs, only miR-151b, miR-7-5p and miR-3200-5p showed significant expression in OS specimens. Specifically, we found that only miR-3200-5p significantly inhibited protein translation of BRMS1 via pairing to the 3'-UTR of the BRMS1 mRNA. Moreover, we detected significantly lower BRMS1 and significantly higher miR-3200-5p in the OS specimens compared to the paired adjacent non-tumour bone tissues. Furthermore, BRMS1 and miR-3200-5p levels were inversely correlated to each other. Low BRMS1 was correlated with metastasis and poor patient survival. In vitro, overexpression of miR-3200-5p significantly decreased BRMS1 levels and promoted OS cell invasion and migration, while depletion of miR-3200-5p significantly increased BRMS1 levels and inhibited OS cell invasion and migration. Thus, our study revealed that miR-3200-5p may be a critical regulator of OS cell invasiveness.
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Affiliation(s)
- Gen Li
- Department of Orthopedics, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai 200072,
China
| | - Li Li
- Department of Orthopedics, Changhai Hospital of Shanghai, The Second Military Medical University, Shanghai 200433,
China
| | - Qi Sun
- Department of Orthopedics, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai 200072,
China
| | - Jiezhou Wu
- Department of Orthopedics, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai 200072,
China
| | - Wei Ge
- Department of Orthopedics, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai 200072,
China
| | - Guanghua Lu
- Department of Orthopedics, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai 200072,
China
| | - Ming Cai
- Department of Orthopedics, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai 200072,
China
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Zeng R, Tan G, Li W, Ma Y. Increased Expression of Cullin 3 in Nasopharyngeal Carcinoma and Knockdown Inhibits Proliferation and Invasion. Oncol Res 2017; 26:111-122. [PMID: 28429677 PMCID: PMC7844559 DOI: 10.3727/096504017x14924753593574] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
This study aimed to investigate the clinical significance of cullin 3 expression in nasopharyngeal carcinoma (NPC), as well as to explore the regulatory mechanism of cullin 3 underlying the growth and metastasis of NPC cells. Our findings showed that the expression levels of cullin 3 were significantly increased in both NPC tissues and cell lines. A strong positive correlation was found between cullin 3 expression and the Ki-67-based proliferation index in NPC tissues. Moreover, cullin 3 overexpression was correlated with local relapse and distant metastasis in NPC patients. In vitro experiments showed that knockdown of cullin 3 caused a significant reduction in the proliferation of NPC cells, probably by inducing cell cycle arrest. In addition, downregulation of cullin 3 inhibited colony formation and the migratory and invasive capacities of NPC cells. The expression levels of PCNA and epithelial-to-mesenchymal transition (EMT)-related proteins were also meditated by cullin 3 in NPC cells. Based on these findings, we demonstrated that cullin 3 plays a promoting role in the malignant progression of NPC and suggest that the cullin 3-based ubiquitin proteasome pathway may be used as a promising therapeutic target for NPC.
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Affiliation(s)
- Ruifang Zeng
- Department of Otolaryngology/Head and Neck Surgery, Third Xiangya Hospital, Central South University, Changsha, Hunan, P.R. China
| | - Guolin Tan
- Department of Otolaryngology/Head and Neck Surgery, Third Xiangya Hospital, Central South University, Changsha, Hunan, P.R. China
| | - Wei Li
- Department of Otolaryngology/Head and Neck Surgery, Third Xiangya Hospital, Central South University, Changsha, Hunan, P.R. China
| | - Yanhong Ma
- Department of Otolaryngology/Head and Neck Surgery, Third Xiangya Hospital, Central South University, Changsha, Hunan, P.R. China
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10
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Prolactin/androgen-inducible carboxypeptidase-D increases with nitrotyrosine and Ki67 for breast cancer progression in vivo, and upregulates progression markers VEGF-C and Runx2 in vitro. Breast Cancer Res Treat 2017; 164:27-40. [PMID: 28364216 DOI: 10.1007/s10549-017-4223-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Accepted: 03/24/2017] [Indexed: 12/19/2022]
Abstract
PURPOSE Carboxypeptidase-D (CPD) cleaves C-terminal arginine (Arg) to produce nitric oxide (NO). Upregulation of CPD and NO by 17β-estradiol, prolactin (PRL), and androgen increases survival of human breast cancer (BCa) cells in vitro. To demonstrate similar events in vivo, CPD, nitrotyrosine (NT, hallmark of NO action), androgen receptor (AR), prolactin receptor (PRLR), and phospho-Stat5a (for activated PRLR) levels were evaluated in benign and malignant human breast tissues, and correlated with cell proliferation (Ki67) and BCa progression (Cullin-3) biomarkers. METHODS Paraffin-embedded breast tissues were analyzed by immunohistochemistry (IHC). BCa progression markers in human MCF-7 and T47D BCa cell lines treated with NO donor SIN-1 or PRL, ±CPD inhibitors were analyzed by RT-qPCR and immunoblotting. RESULTS IHC showed progressive increases in CPD, NT, Ki67, and Cullin-3 from low levels in benign tissues to high levels in ductal carcinoma in situ, low-grade, high-grade, and triple-negative BCa. CPD and NT staining were closely associated, implicating CPD in NO production. Phospho-Stat5a increased significantly from benign to high-grade BCa and was mostly nuclear. AR and PRLR were abundant in benign breast and BCa, including triple-negative tumors. SIN-1 and PRL increased VEGF-C and Runx2, but not Cullin-3, in BCa cell lines. PRL induction of VEGF-C and Runx2 was inhibited partly by CPD inhibitors, implicating NO, produced by PRL-regulated CPD, in BCa progression. CONCLUSIONS The CPD-Arg-NO pathway contributes to BCa progression in vitro and in vivo. PRL/androgen activation of the pathway support combined AR and PRLR blockade as an additional therapy for BCa.
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11
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Ding X, Wang X, Gong Y, Ruan H, Sun Y, Yu Y. KLF7 overexpression in human oral squamous cell carcinoma promotes migration and epithelial-mesenchymal transition. Oncol Lett 2017; 13:2281-2289. [PMID: 28454392 PMCID: PMC5403581 DOI: 10.3892/ol.2017.5734] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2016] [Accepted: 12/01/2016] [Indexed: 11/30/2022] Open
Abstract
Krüppel-like factor 7 (KLF7) is a member of the KLF family of zinc finger transcription factors, and was the first KLF cloned using complementary DNA and polymerase chain reaction (PCR) techniques with human vascular endothelial cells as a template. In addition, KLF7 is known as the ubiquitous Krüppel-like factor, as it is widely expressed in numerous human tissues at low levels. In the present study, the function of KLF7 in migration and epithelial-mesenchymal transition (EMT), which are associated with tumor progression, was investigated in human oral squamous cell carcinoma (OSCC) cells. Genes that were differentially expressed in normal vs. OSCC tissue were identified in the Gene Expression Omnibus database, which identified upregulation of KLF7 in OSCC. The expression and subcellular location of KLF7 was then analyzed using immunohistochemistry. KLF7 expression was measured in three OSCC cell lines, and the two cell lines with the highest (HN13) and lowest (CAL27) KLF7 expression were selected for further analysis. Subsequently, HN13 cells with reduced KLF7 expression (sh-HN13) and CAL27 cells overexpressing KLF7 (OE-CAL27) were constructed. Transwell migration and wound healing assays were then used to analyze the migration of the cells. In addition, mRNA and protein expression levels of the EMT markers E-cadherin, N-cadherin, vimentin and snail were detected using reverse transcription-quantitative PCR and western blotting. KLF7 overexpression in OSCC was validated using tissue immunohistochemistry, which identified moderate to high cytoplasmic staining of KLF7 in OSCC cells. KLF7 knockdown and overexpression altered the migration ability of sh-HN13 and OE-CAL27 cells, which decreased and increased significantly respectively. Expression of E-cadherin, N-cadherin, vimentin and snail was markedly altered in sh-HN13 and OE-CAL27 cells, indicating changes in EMT status. The results of the present study suggest that KLF7 overexpression changes the migratory behavior of OSCC cells, and induces EMT and lymph node metastasis through the expression of snail.
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Affiliation(s)
- Xiaojun Ding
- Department of Stomatology, Zhongshan Hospital Affiliated to Fudan University, Shanghai 200032, P.R. China
| | - Xinhao Wang
- Department of Stomatology, Zhongshan Hospital Affiliated to Fudan University, Shanghai 200032, P.R. China
| | - Yiming Gong
- Department of Stomatology, Zhongshan Hospital Affiliated to Fudan University, Shanghai 200032, P.R. China
| | - Hong Ruan
- Department of Stomatology, Zhongshan Hospital Affiliated to Fudan University, Shanghai 200032, P.R. China
| | - Yang Sun
- Department of Stomatology, Zhongshan Hospital Affiliated to Fudan University, Shanghai 200032, P.R. China
| | - Youcheng Yu
- Department of Stomatology, Zhongshan Hospital Affiliated to Fudan University, Shanghai 200032, P.R. China
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Sun X, Wang M, Liu H, Wang J. MicroRNA-423 enhances the invasiveness of hepatocellular carcinoma via regulation of BRMS1. Am J Transl Res 2017; 9:5576-5584. [PMID: 29312509 PMCID: PMC5752907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2017] [Accepted: 06/07/2017] [Indexed: 03/15/2023]
Abstract
Tumor metastasis portrayed the most serious challenges of cancer as it is the major cause of mortality in patients with solid tumors, including hepatocellular carcinoma (HCC). In this regard, anti-metastatic genes have a great potential for metastasis inhibition. Recent evidence pointed to a role of Breast cancer metastasis suppressor 1 (BRMS1) in suppression of metastasis of several types of cancers, whereas the regulation of BRMS1 in HCC remains unknown. Here, we used bioinformatics analyses to predict BRMS1-targeting microRNAs (miRNAs), and evaluated the functional binding of miRNAs to BRMS1 mRNA using a dual luciferase reporter assay. Among all BRMS1-targeting miRNAs, we only detected significant expression of miR-626, miR-1289 and miR-423 in HCC specimens. Specifically, we found that only miR-423 significantly inhibited protein translation of BRMS1 via specific binding to 3'-UTR of the BRMS1 mRNA. Moreover, we detected significantly lower levels of BRMS1 and significantly higher levels of miR-423 in the HCC specimens, relative to paired adjacent non-tumor liver tissue. Furthermore, BRMS1 and miR-423 levels were correlated inversely. Overexpression of miR-423 significantly decreased BRMS1 levels and promoted HCC cell invasion, while depletion of miR-423 significantly increased BRMS1 levels and inhibited HCC cell invasion. This study sheds light on miR-423 as a crucial factor that enhances HCC cell invasiveness, and suggests miR-423 as a promising therapeutic target for HCC treatment.
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Affiliation(s)
- Xiangjun Sun
- Department of Hepatobiliary Surgery, Linyi People's HospitalLinyi 276003, China
| | - Mingchun Wang
- Operating Department, Linyi People's HospitalLinyi 276003, China
| | - Haiyan Liu
- Nursing Department, Linyi People's HospitalLinyi 276003, China
| | - Jian Wang
- Department of Gastroenterology, Linyi People's HospitalLinyi 276003, China
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