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Liu H, Shi K, Wei Z, Zhang Y, Li J. T cell-mediated tumor killing based signature to predict the prognosis and immunotherapy for glioblastoma. Heliyon 2024; 10:e31207. [PMID: 38813229 PMCID: PMC11133811 DOI: 10.1016/j.heliyon.2024.e31207] [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: 08/08/2023] [Revised: 05/08/2024] [Accepted: 05/13/2024] [Indexed: 05/31/2024] Open
Abstract
Despite the significant advancements in cancer treatment brought by immune checkpoint inhibitors (ICIs), their effectiveness in treating glioblastoma (GBM) remains highly dissatisfactory. Immunotherapy relies on the fundamental concept of T cell-mediated tumor killing (TTK). Nevertheless, additional investigation is required to explore its potential in prognostic prediction and regulation of tumor microenvironment (TME) in GBM. TTK sensitivity related genes (referred to as GSTTKs) were obtained from the TISIDB. The training cohort was available from the TCGA-GBM, while the independent validation group was gathered from GEO database. Firstly, we examined differentially expressed GSTTKs (DEGs) with limma package. Afterwards, the prognostic DEGs were identified and the TTK signature was established with univariate and LASSO Cox analyses. Next, we examined the correlation between the TTK signature and outcome of GBM as well as immune phenotypes of TME. Furthermore, the evaluation of TTK signature in predicting the effectiveness of immunotherapy has also been conducted. We successfully developed a TTK signature with an independent predictive value. Patients who had a high score experienced a worse prognosis compared to patients with low scores. The TTK signature showed a strong positive association with the infiltration degree of immunocyte and the presence of various immune checkpoints. Moreover, individuals with a lower score exhibited increased responsiveness to ICIs and experienced improved prognosis. In conclusions, we successfully developed and verified a TTK signature that has the ability to predict the outcome and immune characteristics of GBM. Furthermore, the TTK signature has the potential to direct the personalized immunotherapy for GBM.
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Affiliation(s)
- Hongchao Liu
- Department of Pathology, The Yiluo Hospital of Luoyang, The Teaching Hospital of Henan University of Science and Technology, Luoyang, China
| | - Kangke Shi
- Department of Pathology, The Yiluo Hospital of Luoyang, The Teaching Hospital of Henan University of Science and Technology, Luoyang, China
| | - Zhihao Wei
- Department of Pathology, The Yiluo Hospital of Luoyang, The Teaching Hospital of Henan University of Science and Technology, Luoyang, China
| | - Yu Zhang
- Department of Pathology, The Yiluo Hospital of Luoyang, The Teaching Hospital of Henan University of Science and Technology, Luoyang, China
| | - Jiaqiong Li
- Department of Pathology, The Yiluo Hospital of Luoyang, The Teaching Hospital of Henan University of Science and Technology, Luoyang, China
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Kim HJ, Jeon HM, Batara DC, Lee S, Lee SJ, Yin J, Park SI, Park M, Seo JB, Hwang J, Oh YJ, Suh SS, Kim SH. CREB5 promotes the proliferation and self-renewal ability of glioma stem cells. Cell Death Discov 2024; 10:103. [PMID: 38418476 PMCID: PMC10901809 DOI: 10.1038/s41420-024-01873-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2023] [Revised: 02/07/2024] [Accepted: 02/15/2024] [Indexed: 03/01/2024] Open
Abstract
Glioblastoma multiforme (GBM) is the most fatal form of brain cancer in humans, with a dismal prognosis and a median overall survival rate of less than 15 months upon diagnosis. Glioma stem cells (GSCs), have recently been identified as key contributors in both tumor initiation and therapeutic resistance in GBM. Both public dataset analysis and direct differentiation experiments on GSCs have demonstrated that CREB5 is more highly expressed in undifferentiated GSCs than in differentiated GSCs. Additionally, gene silencing by short hairpin RNA (shRNA) of CREB5 has prevented the proliferation and self-renewal ability of GSCs in vitro and decreased their tumor forming ability in vivo. Meanwhile, RNA-sequencing, luciferase reporter assay, and ChIP assay have all demonstrated the closely association between CREB5 and OLIG2. These findings suggest that targeting CREB5 could be an effective approach to overcoming GSCs.
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Affiliation(s)
- Hyun-Jin Kim
- Department of Animal Science, College of Agriculture and Life Sciences, Chonnam National University, Gwangju, 61186, Republic of Korea
| | - Hye-Min Jeon
- Department of Cancer Biology, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Don Carlo Batara
- Department of Animal Science, College of Agriculture and Life Sciences, Chonnam National University, Gwangju, 61186, Republic of Korea
| | - Seongsoo Lee
- Gwangju Center, Korea Basic Science Institute (KBSI), Gwangju, 61186, Republic of Korea
| | - Suk Jun Lee
- Department of Biomedical Laboratory Science, College of Health & Medical Sciences, Cheongju University, Chungbuk, 360764, Republic of Korea
| | - Jinlong Yin
- Henan-Macquarie Uni Joint Centre for Biomedical Innovation, Academy for Advanced Interdisciplinary Studies, Henan Key Laboratory of Brain Targeted Bio-nanomedicine, School of Life Sciences, Henan University, Kaifeng, 475004, Henan, China
| | - Sang-Ik Park
- Laboratory of Veterinary Pathology, BK21 FOUR Program, College of Veterinary Medicine, Chonnam National University, Gwangju, 61186, Republic of Korea
| | - Minha Park
- Department of Biomedicine, BK21 FOUR Program, Health & Life Convergence Sciences, Biomedical and Healthcare Research Institute, Mokpo National University, Muan, 58554, Republic of Korea
| | - Jong Bae Seo
- Department of Biomedicine, BK21 FOUR Program, Health & Life Convergence Sciences, Biomedical and Healthcare Research Institute, Mokpo National University, Muan, 58554, Republic of Korea
| | - Jinik Hwang
- West Sea Fisheries Research Institute, National Institute of Fisheries Science, Incheon, 22383, Republic of Korea
| | - Young Joon Oh
- Technology Innovation Research Division, World Institute of Kimchi, Gwangju, 61755, Republic of Korea
| | - Sung-Suk Suh
- Department of Biomedicine, BK21 FOUR Program, Health & Life Convergence Sciences, Biomedical and Healthcare Research Institute, Mokpo National University, Muan, 58554, Republic of Korea.
| | - Sung-Hak Kim
- Department of Animal Science, College of Agriculture and Life Sciences, Chonnam National University, Gwangju, 61186, Republic of Korea.
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Zuchegna C, Leone S, Romano A, Porcellini A, Messina S. KRAS is a molecular determinant of platinum responsiveness in glioblastoma. BMC Cancer 2024; 24:77. [PMID: 38225605 PMCID: PMC10789061 DOI: 10.1186/s12885-023-11758-6] [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: 08/26/2023] [Accepted: 12/13/2023] [Indexed: 01/17/2024] Open
Abstract
BACKGROUND KRAS is the undisputed champion of oncogenes, and despite its prominent role in oncogenesis as mutated gene, KRAS mutation appears infrequent in gliomas. Nevertheless, gliomas are considered KRAS-driven cancers due to its essential role in mouse malignant gliomagenesis. Glioblastoma is the most lethal primary brain tumor, often associated with disturbed RAS signaling. For newly diagnosed GBM, the current standard therapy is alkylating agent chemotherapy combined with radiotherapy. Cisplatin is one of the most effective anticancer drugs and is used as a first-line treatment for a wide spectrum of solid tumors (including medulloblastoma and neuroblastoma) and many studies are currently focused on new delivery modalities of effective cisplatin in glioblastoma. Its mechanism of action is mainly based on DNA damage, inducing the formation of DNA adducts, triggering a series of signal-transduction pathways, leading to cell-cycle arrest, DNA repair and apoptosis. METHODS Long-term cultures of human glioblastoma, U87MG and U251MG, were either treated with cis-diamminedichloroplatinum (cisplatin, CDDP) and/or MEK-inhibitor PD98059. Cytotoxic responses were assessed by cell viability (MTT), protein expression (Western Blot), cell cycle (PI staining) and apoptosis (TUNEL) assays. Further, gain-of-function experiments were performed with cells over-expressing mutated hypervariable region (HVR) KRASG12V plasmids. RESULTS Here, we studied platinum-based chemosensitivity of long-term cultures of human glioblastoma from the perspective of KRAS expression, by using CDDP and MEK-inhibitor. Endogenous high KRAS expression was assessed at transcriptional (qPCR) and translational levels (WB) in a panel of primary and long-term glioblastoma cultures. Firstly, we measured immediate cellular adjustment through direct regulation of protein concentration of K-Ras4B in response to cisplatin treatment. We found increased endogenous protein abundance and involvement of the effector pathway RAF/MEK/ERK mitogen-activated protein kinase (MAPK) cascade. Moreover, as many MEK inhibitors are currently being clinically evaluated for the treatment of high-grade glioma, so we concomitantly tested the effect of the potent and selective non-ATP-competitive MEK1/2 inhibitor (PD98059) on cisplatin-induced chemosensitivity in these cells. Cell-cycle phase distribution was examined using flow cytometry showing a significant cell-cycle arrest in both cultures at different percentage, which is modulated by MEK inhibition. Cisplatin-induced cytotoxicity increased sub-G1 percentage and modulates G2/M checkpoint regulators cyclins D1 and A. Moreover, ectopic expression of a constitutively active KRASG12V rescued CDDP-induced apoptosis and different HVR point mutations (particularly Ala 185) reverted this phenotype. CONCLUSION These findings warrant further studies of clinical applications of MEK1/2 inhibitors and KRAS as 'actionable target' of cisplatin-based chemotherapy for glioblastoma.
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Affiliation(s)
- Candida Zuchegna
- Department of Biology, Federico II University of Naples, 80126, Naples, Italy
- Department of Epidemiology, Preclinical Research and Advanced Diagnostics, National Institute for Infectious Diseases IRCCS 'L. Spallanzani', Rome, Italy
| | - Stefano Leone
- Department of Anatomical, Histological, Forensic Medicine and Orthopedic Sciences, Sapienza University of Rome, 00161, Rome, Italy
| | - Antonella Romano
- Department of Biology, Federico II University of Naples, 80126, Naples, Italy
| | - Antonio Porcellini
- Department of Biology, Federico II University of Naples, 80126, Naples, Italy
| | - Samantha Messina
- Department of Science, Roma Tre University, Viale Guglielmo Marconi 446, 00146, Rome, Italy.
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Patysheva MR, Prostakishina EA, Budnitskaya AA, Bragina OD, Kzhyshkowska JG. Dual-Specificity Phosphatases in Regulation of Tumor-Associated Macrophage Activity. Int J Mol Sci 2023; 24:17542. [PMID: 38139370 PMCID: PMC10743672 DOI: 10.3390/ijms242417542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 12/11/2023] [Accepted: 12/14/2023] [Indexed: 12/24/2023] Open
Abstract
The regulation of protein kinases by dephosphorylation is a key mechanism that defines the activity of immune cells. A balanced process of the phosphorylation/dephosphorylation of key protein kinases by dual-specificity phosphatases is required for the realization of the antitumor immune response. The family of dual-specificity phosphatases is represented by several isoforms found in both resting and activated macrophages. The main substrate of dual-specificity phosphatases are three components of mitogen-activated kinase signaling cascades: the extracellular signal-regulated kinase ERK1/2, p38, and Janus kinase family. The results of the study of model tumor-associated macrophages supported the assumption of the crucial role of dual-specificity phosphatases in the formation and determination of the outcome of the immune response against tumor cells through the selective suppression of mitogen-activated kinase signaling cascades. Since mitogen-activated kinases mostly activate the production of pro-inflammatory mediators and the antitumor function of macrophages, the excess activity of dual-specificity phosphatases suppresses the ability of tumor-associated macrophages to activate the antitumor immune response. Nowadays, the fundamental research in tumor immunology is focused on the search for novel molecular targets to activate the antitumor immune response. However, to date, dual-specificity phosphatases received limited discussion as key targets of the immune system to activate the antitumor immune response. This review discusses the importance of dual-specificity phosphatases as key regulators of the tumor-associated macrophage function.
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Affiliation(s)
- Marina R. Patysheva
- Laboratory of Translational Cellular and Molecular Biomedicine, National Research Tomsk State University, 634050 Tomsk, Russia; (M.R.P.); (E.A.P.); (A.A.B.)
- Laboratory of Cancer Progression Biology, Cancer Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences, 634009 Tomsk, Russia;
| | - Elizaveta A. Prostakishina
- Laboratory of Translational Cellular and Molecular Biomedicine, National Research Tomsk State University, 634050 Tomsk, Russia; (M.R.P.); (E.A.P.); (A.A.B.)
- Laboratory of Cancer Progression Biology, Cancer Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences, 634009 Tomsk, Russia;
| | - Arina A. Budnitskaya
- Laboratory of Translational Cellular and Molecular Biomedicine, National Research Tomsk State University, 634050 Tomsk, Russia; (M.R.P.); (E.A.P.); (A.A.B.)
- Laboratory of Genetic Technologies, Siberian State Medical University, 634050 Tomsk, Russia
| | - Olga D. Bragina
- Laboratory of Cancer Progression Biology, Cancer Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences, 634009 Tomsk, Russia;
| | - Julia G. Kzhyshkowska
- Laboratory of Translational Cellular and Molecular Biomedicine, National Research Tomsk State University, 634050 Tomsk, Russia; (M.R.P.); (E.A.P.); (A.A.B.)
- Laboratory of Genetic Technologies, Siberian State Medical University, 634050 Tomsk, Russia
- Institute of Transfusion Medicine and Immunology, Medical Faculty Mannheim, Mannheim Institute of Innate Immunosciences (MI3), University of Heidelberg, 68167 Mannheim, Germany
- German Red Cross Blood Service Baden-Württemberg—Hessen, 69117 Mannheim, Germany
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Liu N, Li C, Shang Q, Qi J, Li Q, Deng J, Dan H, Xie L, Chen Q. Angelicin inhibits cell growth and promotes apoptosis in oral squamous cell carcinoma by negatively regulating DUSP6/cMYC signaling pathway. Exp Cell Res 2023; 432:113793. [PMID: 37741490 DOI: 10.1016/j.yexcr.2023.113793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2023] [Revised: 09/12/2023] [Accepted: 09/18/2023] [Indexed: 09/25/2023]
Abstract
Angelicin has been reported to have antitumor effects on many types of cancer. However, few studies on angelicin in oral squamous cell carcinoma (OSCC) have been performed. We performed cell cycle and apoptosis analyses to assess the effect of angelicin on OSCC cells. We conducted RNA-seq studies to reveal differentially expressed genes (DEGs). Dual-specificity phosphatase 6 (DUSP6) and c-MYC were strongly down-regulated differential genes. Silencing RNA (siRNA) was used to knockdown DUSP6. The mouse xenograft model was used to mimic OSCC. Angelicin inhibited OSCC in vitro. We found that DUSP6 interacted with c-MYC. DUSP6 knockdown group and DUSP6 knockdown + angelicin group had similar effects of OSCC cells. Angelicin could reduce tumor formation, DUSP6, and c-MYC expression in vivo. Compared with paclitaxel, the tumor inhibition effect of the two drugs was similar. However, angelicin did not cause weight loss and had lower toxicity. In sum, Angelicin has antitumor effects on OSCC in vitro and vivo by negatively regulating the DUSP6 mediated c-MYC signaling pathway.
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Affiliation(s)
- Na Liu
- State Key Laboratory of Oral Diseases, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Research Unit of Oral Carcinogenesis and Management, Chinese Academy of Medical Sciences, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China; Department of Periodontics, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangdong Engineering Research Center of Oral Restoration and Reconstruction, Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangzhou 510182, China
| | - Chunyu Li
- State Key Laboratory of Oral Diseases, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Research Unit of Oral Carcinogenesis and Management, Chinese Academy of Medical Sciences, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China
| | - Qianhui Shang
- State Key Laboratory of Oral Diseases, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Research Unit of Oral Carcinogenesis and Management, Chinese Academy of Medical Sciences, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China
| | - Jiajia Qi
- State Key Laboratory of Oral Diseases, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Research Unit of Oral Carcinogenesis and Management, Chinese Academy of Medical Sciences, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China
| | - Qionghua Li
- State Key Laboratory of Oral Diseases, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Research Unit of Oral Carcinogenesis and Management, Chinese Academy of Medical Sciences, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China
| | - Jing Deng
- State Key Laboratory of Oral Diseases, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Research Unit of Oral Carcinogenesis and Management, Chinese Academy of Medical Sciences, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China
| | - Hongxia Dan
- State Key Laboratory of Oral Diseases, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Research Unit of Oral Carcinogenesis and Management, Chinese Academy of Medical Sciences, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China
| | - Liang Xie
- State Key Laboratory of Oral Diseases, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Research Unit of Oral Carcinogenesis and Management, Chinese Academy of Medical Sciences, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China.
| | - Qianming Chen
- State Key Laboratory of Oral Diseases, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Research Unit of Oral Carcinogenesis and Management, Chinese Academy of Medical Sciences, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China
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Chen Y, Pan Y, Gao H, Yi Y, Qin S, Ma F, Zhou X, Guan M. Mechanistic insights into super-enhancer-driven genes as prognostic signatures in patients with glioblastoma. J Cancer Res Clin Oncol 2023; 149:12315-12332. [PMID: 37432454 DOI: 10.1007/s00432-023-05121-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Accepted: 07/04/2023] [Indexed: 07/12/2023]
Abstract
BACKGROUND Glioblastoma (GBM) is one of the most common malignant brain tumors in adults and is characterized by high aggressiveness and rapid progression, poor treatment, high recurrence rate, and poor prognosis. Although super-enhancer (SE)-driven genes haven been recognized as prognostic markers for several cancers, whether it can be served as effective prognostic markers for patients with GBM has not been evaluated. METHODS We first combined histone modification data with transcriptome data to identify SE-driven genes associated with prognosis in patients with GBM. Second, we developed a SE-driven differentially expressed genes (SEDEGs) risk score prognostic model by univariate Cox analysis, KM survival analysis, multivariate Cox analysis and least absolute shrinkage and selection operator (LASSO) regression. Its reliability in predicting was verified by two external data sets. Third, through mutation analysis, immune infiltration, we explored the molecular mechanisms of prognostic genes. Next, Genomics of Drug Sensitivity in Cancer (GDSC) and the Connectivity Map (cMap) database were employed to assess different sensitivities to chemotherapeutic agents and small-molecule drug candidates between high- and low-risk patients. Finally, SEanalysis database was chosen to identify SE-driven transcription factors (TFs) regulating prognostic markers which will reveal a potential SE-driven transcriptional regulatory network. RESULTS First, we developed a 11-gene risk score prognostic model (NCF2, MTHFS, DUSP6, G6PC3, HOXB2, EN2, DLEU1, LBH, ZEB1-AS1, LINC01265, and AGAP2-AS1) selected from 1,154 SEDEGs, which is not only an independent prognostic factor for patients, but also can effectively predict the survival rate of patients. The model can effectively predict 1-, 2- and 3-year survival of patients and was validated in external Chinese Glioma Genome Atlas (CGGA) and Gene Expression Omnibus (GEO) datasets. Second, the risk score was positively correlated with the infiltration of regulatory T cell, CD4 memory activated T cell, activated NK cell, neutrophil, resting mast cell, M0 macrophage, and memory B cell. Third, we found that high-risk patients showed higher sensitivity than low-risk patients to both 27 chemotherapeutic agents and 4 small-molecule drug candidates which might benefit further precision therapy for GBM patients. Finally, 13 potential SE-driven TFs imply how SE regulates GBM patient's prognosis. CONCLUSION The SEDEG risk model not only helps to elucidate the impact of SEs on the course of GBM, but also provides a bright future for prognosis determination and choice of treatment for GBM patients.
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Affiliation(s)
- Youran Chen
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, 1 Wenyuan Rd., Nanjing, 210023, Jiangsu, China
| | - Yi Pan
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, 1 Wenyuan Rd., Nanjing, 210023, Jiangsu, China
| | - Hanyu Gao
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, 1 Wenyuan Rd., Nanjing, 210023, Jiangsu, China
| | - Yunmeng Yi
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, 1 Wenyuan Rd., Nanjing, 210023, Jiangsu, China
| | - Shijie Qin
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, 1 Wenyuan Rd., Nanjing, 210023, Jiangsu, China
| | - Fei Ma
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, 1 Wenyuan Rd., Nanjing, 210023, Jiangsu, China
| | - Xue Zhou
- School of Chemistry and Biological Engineering, Nanjing Normal University Taizhou College, Taizhou, 225300, China.
| | - Miao Guan
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, 1 Wenyuan Rd., Nanjing, 210023, Jiangsu, China.
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Marciniak B, Kciuk M, Mujwar S, Sundaraj R, Bukowski K, Gruszka R. In Vitro and In Silico Investigation of BCI Anticancer Properties and Its Potential for Chemotherapy-Combined Treatments. Cancers (Basel) 2023; 15:4442. [PMID: 37760412 PMCID: PMC10526149 DOI: 10.3390/cancers15184442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 08/10/2023] [Accepted: 08/30/2023] [Indexed: 09/29/2023] Open
Abstract
BACKGROUND DUSP6 phosphatase serves as a negative regulator of MAPK kinases involved in numerous cellular processes. BCI has been identified as a potential allosteric inhibitor with anticancer activity. Our study was designed to test the anticancer properties of BCI in colon cancer cells, to characterize the effect of this compound on chemotherapeutics such as irinotecan and oxaliplatin activity, and to identify potential molecular targets for this inhibitor. METHODS BCI cytotoxicity, proapoptotic activity, and cell cycle distribution were investigated in vitro on three colon cancer cell lines (DLD1, HT-29, and Caco-2). In silico investigation was prepared to assess BCI drug-likeness and identify potential molecular targets. RESULTS The exposure of colorectal cancer cells with BCI resulted in antitumor effects associated with cell cycle arrest and induction of apoptosis. BCI exhibited strong cytotoxicity on DLD1, HT-29, and Caco-2 cells. BCI showed no significant interaction with irinotecan, but strongly attenuated the anticancer activity of oxaliplatin when administered together. Analysis of synergy potential further confirmed the antagonistic interaction between these two compounds. In silico investigation indicated CDK5 as a potential new target of BCI. CONCLUSIONS Our studies point to the anticancer potential of BCI but note the need for a precise mechanism of action.
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Affiliation(s)
- Beata Marciniak
- Department of Molecular Biotechnology and Genetics, University of Lodz, Banacha 12/16, 90-237 Lodz, Poland; (M.K.); (K.B.); (R.G.)
| | - Mateusz Kciuk
- Department of Molecular Biotechnology and Genetics, University of Lodz, Banacha 12/16, 90-237 Lodz, Poland; (M.K.); (K.B.); (R.G.)
- Doctoral School of Exact and Natural Sciences, University of Lodz, 90-237 Lodz, Poland
| | - Somdutt Mujwar
- Chitkara College of Pharmacy, Chitkara University, Rajpura 140401, Punjab, India;
| | - Rajamanikandan Sundaraj
- Centre for Drug Discovery, Department of Biochemistry, Karpagam Academy of Higher Education, Coimbatore 641021, Tamil Nadu, India;
| | - Karol Bukowski
- Department of Molecular Biotechnology and Genetics, University of Lodz, Banacha 12/16, 90-237 Lodz, Poland; (M.K.); (K.B.); (R.G.)
| | - Renata Gruszka
- Department of Molecular Biotechnology and Genetics, University of Lodz, Banacha 12/16, 90-237 Lodz, Poland; (M.K.); (K.B.); (R.G.)
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Martin-Vega A, Earnest S, Augustyn A, Wichaidit C, Gazdar A, Girard L, Peyton M, Kollipara RK, Minna JD, Johnson JE, Cobb MH. ASCL1-ERK1/2 Axis: ASCL1 restrains ERK1/2 via the dual specificity phosphatase DUSP6 to promote survival of a subset of neuroendocrine lung cancers. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.06.15.545148. [PMID: 37398419 PMCID: PMC10312738 DOI: 10.1101/2023.06.15.545148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/04/2023]
Abstract
The transcription factor achaete-scute complex homolog 1 (ASCL1) is a lineage oncogene that is central for the growth and survival of small cell lung cancers (SCLC) and neuroendocrine non-small cell lung cancers (NSCLC-NE) that express it. Targeting ASCL1, or its downstream pathways, remains a challenge. However, a potential clue to overcoming this challenage has been information that SCLC and NSCLC-NE that express ASCL1 exhibit extremely low ERK1/2 activity, and efforts to increase ERK1/2 activity lead to inhibition of SCLC growth and surival. Of course, this is in dramatic contrast to the majority of NSCLCs where high activity of the ERK pathway plays a major role in cancer pathogenesis. A major knowledge gap is defining the mechanism(s) underlying the low ERK1/2 activity in SCLC, determining if ERK1/2 activity and ASCL1 function are inter-related, and if manipulating ERK1/2 activity provides a new therapeutic strategy for SCLC. We first found that expression of ERK signaling and ASCL1 have an inverse relationship in NE lung cancers: knocking down ASCL1 in SCLCs and NE-NSCLCs increased active ERK1/2, while inhibition of residual SCLC/NSCLC-NE ERK1/2 activity with a MEK inhibitor increased ASCL1 expression. To determine the effects of ERK activity on expression of other genes, we obtained RNA-seq from ASCL1-expressing lung tumor cells treated with an ERK pathway MEK inhibitor and identified down-regulated genes (such as SPRY4, ETV5, DUSP6, SPRED1) that potentially could influence SCLC/NSCLC-NE tumor cell survival. This led us to discover that genes regulated by MEK inhibition suppress ERK activation and CHIP-seq demonstrated these are bound by ASCL1. In addition, SPRY4, DUSP6, SPRED1 are known suppressors of the ERK1/2 pathway, while ETV5 regulates DUSP6. Survival of NE lung tumors was inhibited by activation of ERK1/2 and a subset of ASCL1-high NE lung tumors expressed DUSP6. Because the dual specificity phosphatase 6 (DUSP6) is an ERK1/2-selective phosphatase that inactivates these kinases and has a pharmacologic inhibitor, we focused mechanistic studies on DUSP6. These studies showed: Inhibition of DUSP6 increased active ERK1/2, which accumulated in the nucleus; pharmacologic and genetic inhibition of DUSP6 affected proliferation and survival of ASCL1-high NE lung cancers; and that knockout of DUSP6 "cured" some SCLCs while in others resistance rapidly developed indicating a bypass mechanism was activated. Thus, our findings fill this knowledge gap and indicate that combined expression of ASCL1, DUSP6 and low phospho-ERK1/2 identify some neuroendocrine lung cancers for which DUSP6 may be a therapeutic target.
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Zhang B, Xie L, Liu J, Liu A, He M. Construction and validation of a cuproptosis-related prognostic model for glioblastoma. Front Immunol 2023; 14:1082974. [PMID: 36814929 PMCID: PMC9939522 DOI: 10.3389/fimmu.2023.1082974] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Accepted: 01/26/2023] [Indexed: 02/08/2023] Open
Abstract
Background Cuproptosis, a newly reported type of programmed cell death, takes part in the regulation of tumor progression, treatment response, and prognosis. But the specific effect of cuproptosis-related genes (CRGs) on glioblastoma (GBM) is still unclear. Methods The transcriptome data and corresponding clinical data of GBM samples were downloaded from the TCGA and GEO databases. R software and R packages were used to perform statistical analysis, consensus cluster analysis, survival analysis, Cox regression analysis, Lasso regression analysis, and tumor microenvironment analysis. The mRNA and protein expression levels of model-related genes were detected by RT-qPCR and Western blot assays, respectively. Results The expression profile of CRGs in 209 GBM samples from two separate datasets was obtained. Two cuproptosis subtypes, CRGcluster A and CRGcluster B, were identified by consensus cluster analysis. There were apparent differences in prognosis, tumor microenvironment, and immune checkpoint expression levels between the two subtypes, and there were 79 prognostic differentially expressed genes (DEGs). According to the prognostic DEGs, two gene subtypes, geneCluster A and geneCluster B, were identified, and a prognostic risk score model was constructed and validated. This model consists of five prognostic DEGs, including PDIA4, DUSP6, PTPRN, PILRB, and CBLN1. Ultimately, to improve the applicability of the model, a nomogram was established. Patients with GBM in the low-risk cluster have a higher mutation burden and predict a longer OS than in the high-risk group. Moreover, the risk score was related to drug sensitivity and negatively correlated with the CSC index. Conclusion We successfully constructed a cuproptosis-related prognostic model, which can independently predict the prognosis of GBM patients. These results further complement the understanding of cuproptosis and provide new theoretical support for developing a more effective treatment strategy.
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Affiliation(s)
- Bohong Zhang
- Department of Anesthesiology, the Seventh Affiliated Hospital, Sun Yat-Sen University, Shenzhen, China
| | - Lin Xie
- Department of Neurosurgery, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Jiahao Liu
- Department of Neurosurgery, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Anmin Liu
- Department of Neurosurgery, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Mingliang He
- Department of Neurosurgery, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
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10
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Caglar HO, Duzgun Z. Identification of upregulated genes in glioblastoma and glioblastoma cancer stem cells using bioinformatics analysis. Gene X 2023; 848:146895. [DOI: 10.1016/j.gene.2022.146895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 08/10/2022] [Accepted: 09/12/2022] [Indexed: 11/30/2022] Open
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11
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Inflammatory bone marrow signaling in pediatric acute myeloid leukemia distinguishes patients with poor outcomes. Nat Commun 2022; 13:7186. [PMID: 36418348 PMCID: PMC9684530 DOI: 10.1038/s41467-022-34965-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2022] [Accepted: 11/09/2022] [Indexed: 11/26/2022] Open
Abstract
High levels of the inflammatory cytokine IL-6 in the bone marrow are associated with poor outcomes in pediatric acute myeloid leukemia (pAML), but its etiology remains unknown. Using RNA-seq data from pre-treatment bone marrows of 1489 children with pAML, we show that > 20% of patients have concurrent IL-6, IL-1, IFNα/β, and TNFα signaling activity and poorer outcomes. Targeted sequencing of pre-treatment bone marrow samples from affected patients (n = 181) revealed 5 highly recurrent patterns of somatic mutation. Using differential expression analyses of the most common genomic subtypes (~60% of total), we identify high expression of multiple potential drivers of inflammation-related treatment resistance. Regardless of genomic subtype, we show that JAK1/2 inhibition reduces receptor-mediated inflammatory signaling by leukemic cells in-vitro. The large number of high-risk pAML genomic subtypes presents an obstacle to the development of mutation-specific therapies. Our findings suggest that therapies targeting inflammatory signaling may be effective across multiple genomic subtypes of pAML.
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12
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Kidger AM, Saville MK, Rushworth LK, Davidson J, Stellzig J, Ono M, Kuebelsbeck LA, Janssen KP, Holzmann B, Morton JP, Sansom OJ, Caunt CJ, Keyse SM. Suppression of mutant Kirsten-RAS (KRAS G12D)-driven pancreatic carcinogenesis by dual-specificity MAP kinase phosphatases 5 and 6. Oncogene 2022; 41:2811-2823. [PMID: 35418690 PMCID: PMC9106580 DOI: 10.1038/s41388-022-02302-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 03/21/2022] [Accepted: 03/28/2022] [Indexed: 12/20/2022]
Abstract
The cytoplasmic phosphatase DUSP6 and its nuclear counterpart DUSP5 are negative regulators of RAS/ERK signalling. Here we use deletion of either Dusp5 or Dusp6 to explore the roles of these phosphatases in a murine model of KRASG12D-driven pancreatic cancer. By 56-days, loss of either DUSP5 or DUSP6 causes a significant increase in KRASG12D-driven pancreatic hyperplasia. This is accompanied by increased pancreatic acinar to ductal metaplasia (ADM) and the development of pre-neoplastic pancreatic intraepithelial neoplasia (PanINs). In contrast, by 100-days, pancreatic hyperplasia is reversed with significant atrophy of pancreatic tissue and weight loss observed in animals lacking either DUSP5 or DUSP6. On further ageing, Dusp6-/- mice display accelerated development of metastatic pancreatic ductal adenocarcinoma (PDAC), while in Dusp5-/- animals, although PDAC development is increased this process is attenuated by atrophy of pancreatic acinar tissue and severe weight loss in some animals before cancer could progress. Our data suggest that despite a common target in the ERK MAP kinase, DUSP5 and DUSP6 play partially non-redundant roles in suppressing oncogenic KRASG12D signalling, thus retarding both tumour initiation and progression. Our data suggest that loss of either DUSP5 or DUSP6, as observed in certain human tumours, including the pancreas, could promote carcinogenesis.
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Affiliation(s)
- Andrew M Kidger
- Stress Response Laboratory, Jacqui Wood Cancer Centre, Division of Cellular and Systems Medicine, School of Medicine, University of Dundee, Dundee, DD1 9SY, UK
| | - Mark K Saville
- Stress Response Laboratory, Jacqui Wood Cancer Centre, Division of Cellular and Systems Medicine, School of Medicine, University of Dundee, Dundee, DD1 9SY, UK
| | - Linda K Rushworth
- Stress Response Laboratory, Jacqui Wood Cancer Centre, Division of Cellular and Systems Medicine, School of Medicine, University of Dundee, Dundee, DD1 9SY, UK
| | - Jane Davidson
- Stress Response Laboratory, Jacqui Wood Cancer Centre, Division of Cellular and Systems Medicine, School of Medicine, University of Dundee, Dundee, DD1 9SY, UK
| | - Julia Stellzig
- Stress Response Laboratory, Jacqui Wood Cancer Centre, Division of Cellular and Systems Medicine, School of Medicine, University of Dundee, Dundee, DD1 9SY, UK
| | - Motoharu Ono
- Stress Response Laboratory, Jacqui Wood Cancer Centre, Division of Cellular and Systems Medicine, School of Medicine, University of Dundee, Dundee, DD1 9SY, UK
| | - Ludwig A Kuebelsbeck
- Department of Surgery, School of Medicine, Klinikum Rechts der Isar, Technical University of Munich, Munich, Germany
| | - Klaus-Peter Janssen
- Department of Surgery, School of Medicine, Klinikum Rechts der Isar, Technical University of Munich, Munich, Germany
| | - Bernhard Holzmann
- Department of Surgery, School of Medicine, Klinikum Rechts der Isar, Technical University of Munich, Munich, Germany
| | - Jennifer P Morton
- Institute of Cancer Sciences, Garscube Estate, Switchback Road, Glasgow, G61 1QH, UK
- CRUK Beatson Institute, Garscube Estate, Switchback Road, Glasgow, G61 1BD, UK
| | - Owen J Sansom
- Institute of Cancer Sciences, Garscube Estate, Switchback Road, Glasgow, G61 1QH, UK
- CRUK Beatson Institute, Garscube Estate, Switchback Road, Glasgow, G61 1BD, UK
| | - Christopher J Caunt
- Department of Biology and Biochemistry, University of Bath, Claverton Down, Bath, BA2 7AY, UK
| | - Stephen M Keyse
- Stress Response Laboratory, Jacqui Wood Cancer Centre, Division of Cellular and Systems Medicine, School of Medicine, University of Dundee, Dundee, DD1 9SY, UK.
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13
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Iqbal MA, Li M, Lin J, Zhang G, Chen M, Moazzam NF, Qian W. Preliminary Study on the Sequencing of Whole Genomic Methylation and Transcriptome-Related Genes in Thyroid Carcinoma. Cancers (Basel) 2022; 14:cancers14051163. [PMID: 35267472 PMCID: PMC8909391 DOI: 10.3390/cancers14051163] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Revised: 02/19/2022] [Accepted: 02/22/2022] [Indexed: 01/02/2023] Open
Abstract
Simple Summary Epigenetic alterations are critical for tumor onset and development. DNA methylation is one of the most studied pathways concerning various types of cancer. A promising and exciting avenue of research is the discovery of biomarkers of early-stage malignancies for disease prevention and prognostic indicators following cancer treatment by examining the DNA methylation modification of relevant genes implicated in cancer development. We have made significant advances in the study of DNA methylation and thyroid cancer. This study is novel in that it distinguished methylation changes that occurred primarily in the gene body region of the aforementioned hypermethylated or hypomethylated thyroid cancer genes. Our findings imply that exposing whole-genome DNA methylation patterns and gene expression profiles in thyroid cancer provides new insight into the carcinogenesis of thyroid cancer, demonstrating that gene expression mediated by DNA methylation modifications may play a significant role in tumor growth. Abstract Thyroid carcinoma is the most prevalent endocrine cancer globally and the primary cause of cancer-related mortality. Epigenetic modifications are progressively being linked to metastasis. This study aimed to examine whole-genome DNA methylation patterns and the gene expression profiles in thyroid cancer tissue samples using a MethylationEPIC BeadChip (850K), RNA sequencing, and a targeted bisulfite sequencing assay. The results of the Illumina Infinium human methylation kit (850K) analyses identified differentially methylated CpG locations (DMPs) and differentially methylated CpG regions (DMRs) encompassing nearly the entire genome with high resolution and depth. Gene ontology and KEGG pathway analyses revealed that the genes associated with DMRs belonged to various domain-specific ontologies, including cell adhesion, molecule binding, and proliferation. The RNA-Seq study found 1627 differentially expressed genes, 1174 of which that were up-regulated and 453 of which that were down-regulated. The targeted bisulfite sequencing assay revealed that CHST2, DPP4, DUSP6, ITGA2, SLC1A5, TIAM1, TNIK, and ABTB2 methylation levels were dramatically lowered in thyroid cancer patients when compared to the controls, but GALNTL6, HTR7, SPOCD1, and GRM5 methylation levels were significantly raised. Our study revealed that the whole-genome DNA methylation patterns and gene expression profiles in thyroid cancer shed new light on the tumorigenesis of thyroid cancer.
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Affiliation(s)
- Muhammad Asad Iqbal
- Department of Otolaryngology-Head & Neck Surgery, Affiliated People’s Hospital of Jiangsu University, Zhenjiang 212002, China;
| | - Mingyang Li
- Department of Basic Medical Sciences, Affiliated to School of Medicine, Jiangsu University, Zhenjiang 212002, China;
| | - Jiang Lin
- Laboratory Center, Affiliated People’s Hospital of Jiangsu University, Zhenjiang 212132, China;
| | - Guoliang Zhang
- Department of General Surgery, Affiliated People’s Hospital of Jiangsu University, Zhenjiang 212132, China;
| | - Miao Chen
- Department of Pathology, Affiliated People’s Hospital of Jiangsu University, Zhenjiang 212132, China;
| | | | - Wei Qian
- Department of Otolaryngology-Head & Neck Surgery, Affiliated People’s Hospital of Jiangsu University, Zhenjiang 212002, China;
- Correspondence: ; Tel.: +86-0511-88917833 or +86-1535-8586188
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14
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Zandi Z, Kashani B, Alishahi Z, Pourbagheri-Sigaroodi A, Esmaeili F, Ghaffari SH, Bashash D, Momeny M. Dual-specificity phosphatases: therapeutic targets in cancer therapy resistance. J Cancer Res Clin Oncol 2022; 148:57-70. [PMID: 34981193 DOI: 10.1007/s00432-021-03874-2] [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: 07/26/2021] [Accepted: 11/25/2021] [Indexed: 10/19/2022]
Abstract
PURPOSE Therapy resistance is the principal obstacle to achieving cures in cancer patients and its successful tackling requires a deep understanding of the resistance mediators. Increasing evidence indicates that tumor phosphatases are novel and druggable targets in translational oncology and their modulation may hinder tumor growth and motility and potentiate therapeutic sensitivity in various neoplasms via regulation of various signal transduction pathways. Dual-specificity phosphatases (DUSPs) are key players of cell growth, survival and death and have essential roles in tumor initiation, malignant progression and therapy resistance through regulation of the MAPK signaling pathway. In this review, different aspects of DUSPs are discussed. METHODS A comprehensive literature review was performed using various websites including PubMed. RESULTS We provide mechanistic insights into the roles of well-known DUSPs in resistance to a wide range of cancer therapeutic approaches including chemotherapy, radiation and molecular targeted therapy in human malignancies. Moreover, we discuss the development of DUSP modulators, with a focus on DUSP1 and 6 inhibitors. Ultimately, the preclinical investigations of small molecule inhibitors of DUSP1 and 6 are outlined. CONCLUSION Emerging evidence indicates that the DUSP family is aberrantly expressed in human malignancies and plays critical roles in determining sensitivity to a wide range of cancer therapeutic strategies through regulation of the MAPK signaling pathways. Consequently, targeting DUSPs and their downstream molecules can pave the way for more effective cancer therapies.
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Affiliation(s)
- Zahra Zandi
- Hematology/Oncology and Stem Cell Transplantation Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Bahareh Kashani
- Hematology/Oncology and Stem Cell Transplantation Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Zivar Alishahi
- Hematology/Oncology and Stem Cell Transplantation Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Atieh Pourbagheri-Sigaroodi
- Department of Hematology and Blood Banking, School of Allied Medical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Fatemeh Esmaeili
- Hematology/Oncology and Stem Cell Transplantation Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Seyed H Ghaffari
- Hematology/Oncology and Stem Cell Transplantation Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Davood Bashash
- Department of Hematology and Blood Banking, School of Allied Medical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Majid Momeny
- Hematology/Oncology and Stem Cell Transplantation Research Center, Tehran University of Medical Sciences, Tehran, Iran.
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15
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Nair J, Syed SB, Mahaddalkar T, Ketkar M, Thorat R, Sastri Goda J, Dutt S. DUSP6 regulates radio-sensitivity in glioblastoma by modulating the recruitment of p-DNAPKcs at DNA double-strand breaks. J Cell Sci 2021; 134:273732. [PMID: 34792128 DOI: 10.1242/jcs.259520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Accepted: 11/02/2021] [Indexed: 11/20/2022] Open
Abstract
Glioblastoma (GBM) has poor median survival due to its resistance to chemo-radiotherapy regimen, resulting in tumor recurrence. Recurrent GBMs currently lack effective treatments. DUSP6 is known to be pro-tumorigenic and is up-regulated in GBM. We show that DUSP6 expression is significantly higher in recurrent GBM patient biopsies (n=11) compared to primary biopsies (n=11). Importantly, although reported as cytoplasmic protein, we found nuclear localization of DUSP6 in primary and recurrent patient samples and in parent and relapse population of GBM cell lines generated from in vitro radiation survival model. DUSP6 inhibition using BCI resulted in decreased proliferation and clonogenic survival of parent and relapse cells. Pharmacological or genetic inhibition of DUSP6 catalytic activity radio-sensitized primary and importantly, relapse GBM cells by inhibiting the recruitment of p-DNAPKcs, subsequently down-regulating the recruitment of γH2AX and 53BP1. This resulted in decreased cell survival and prolonged growth arrest upon irradiation in vitro and significantly increased the progression-free survival in orthotopic mouse models of GBM. Our study highlights a non-canonical function of DUSP6, emphasizing the potential application of DUSP6 inhibitors in the treatment of recurrent GBM.
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Affiliation(s)
- Jyothi Nair
- Shilpee Dutt Laboratory, Advanced Centre for Treatment, Research and Education in Cancer, Tata Memorial Centre, Navi Mumbai - 410210, India.,Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai 400085, India
| | - Safiulla Basha Syed
- Shilpee Dutt Laboratory, Advanced Centre for Treatment, Research and Education in Cancer, Tata Memorial Centre, Navi Mumbai - 410210, India
| | - Tejashree Mahaddalkar
- Shilpee Dutt Laboratory, Advanced Centre for Treatment, Research and Education in Cancer, Tata Memorial Centre, Navi Mumbai - 410210, India.,Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai 400085, India
| | - Madhura Ketkar
- Shilpee Dutt Laboratory, Advanced Centre for Treatment, Research and Education in Cancer, Tata Memorial Centre, Navi Mumbai - 410210, India.,Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai 400085, India
| | - Rahul Thorat
- Laboratory Animal Facility, Advanced Centre for Treatment, Research and Education in Cancer, Tata Memorial Centre, Navi Mumbai - 410210, India
| | - Jayant Sastri Goda
- Department of Radiation Oncology, Advanced Centre for Treatment, Research and Education in Cancer, Tata Memorial Centre, Navi Mumbai - 410210, India
| | - Shilpee Dutt
- Shilpee Dutt Laboratory, Advanced Centre for Treatment, Research and Education in Cancer, Tata Memorial Centre, Navi Mumbai - 410210, India.,Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai 400085, India
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16
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Duan S, Moro L, Qu R, Simoneschi D, Cho H, Jiang S, Zhao H, Chang Q, de Stanchina E, Arbini AA, Pagano M. Loss of FBXO31-mediated degradation of DUSP6 dysregulates ERK and PI3K-AKT signaling and promotes prostate tumorigenesis. Cell Rep 2021; 37:109870. [PMID: 34686346 PMCID: PMC8577224 DOI: 10.1016/j.celrep.2021.109870] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 08/12/2021] [Accepted: 09/29/2021] [Indexed: 02/07/2023] Open
Abstract
FBXO31 is the substrate receptor of one of many CUL1-RING ubiquitin ligase (CRL1) complexes. Here, we show that low FBXO31 mRNA levels are associated with high pre-operative prostate-specific antigen (PSA) levels and Gleason grade in human prostate cancer. Mechanistically, the ubiquitin ligase CRL1FBXO31 promotes the ubiquitylation-mediated degradation of DUSP6, a dual specificity phosphatase that dephosphorylates and inactivates the extracellular-signal-regulated kinase-1 and -2 (ERK1/2). Depletion of FBXO31 stabilizes DUSP6, suppresses ERK signaling, and activates the PI3K-AKT signaling cascade. Moreover, deletion of FBXO31 promotes tumor development in a mouse orthotopic model of prostate cancer. Treatment with BCI, a small molecule inhibitor of DUSP6, suppresses AKT activation and prevents tumor formation, suggesting that the FBXO31 tumor suppressor activity is dependent on DUSP6. Taken together, our studies highlight the relevance of the FBXO31-DUSP6 axis in the regulation of ERK- and PI3K-AKT-mediated signaling pathways, as well as its therapeutic potential in prostate cancer.
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Affiliation(s)
- Shanshan Duan
- Department of Biochemistry and Molecular Pharmacology, NYU Grossman School of Medicine, The Alexandria Center for Life Science, New York, NY 10016, USA; Laura and Isaac Perlmutter Cancer Center, NYU Grossman School of Medicine, The Alexandria Center for Life Science, New York, NY 10016, USA
| | - Loredana Moro
- Department of Biochemistry and Molecular Pharmacology, NYU Grossman School of Medicine, The Alexandria Center for Life Science, New York, NY 10016, USA; Laura and Isaac Perlmutter Cancer Center, NYU Grossman School of Medicine, The Alexandria Center for Life Science, New York, NY 10016, USA
| | - Rui Qu
- Department of Biochemistry and Molecular Pharmacology, NYU Grossman School of Medicine, The Alexandria Center for Life Science, New York, NY 10016, USA; Laura and Isaac Perlmutter Cancer Center, NYU Grossman School of Medicine, The Alexandria Center for Life Science, New York, NY 10016, USA
| | - Daniele Simoneschi
- Department of Biochemistry and Molecular Pharmacology, NYU Grossman School of Medicine, The Alexandria Center for Life Science, New York, NY 10016, USA; Laura and Isaac Perlmutter Cancer Center, NYU Grossman School of Medicine, The Alexandria Center for Life Science, New York, NY 10016, USA
| | - Hyunwoo Cho
- Department of Biochemistry and Molecular Pharmacology, NYU Grossman School of Medicine, The Alexandria Center for Life Science, New York, NY 10016, USA; Laura and Isaac Perlmutter Cancer Center, NYU Grossman School of Medicine, The Alexandria Center for Life Science, New York, NY 10016, USA
| | - Shaowen Jiang
- Department of Biochemistry and Molecular Pharmacology, NYU Grossman School of Medicine, The Alexandria Center for Life Science, New York, NY 10016, USA; Laura and Isaac Perlmutter Cancer Center, NYU Grossman School of Medicine, The Alexandria Center for Life Science, New York, NY 10016, USA
| | - Huiyong Zhao
- Program in Molecular Pharmacology, Memorial Sloan Kettering Cancer Center, New York, New York 10065, USA
| | - Qing Chang
- Program in Molecular Pharmacology, Memorial Sloan Kettering Cancer Center, New York, New York 10065, USA
| | - Elisa de Stanchina
- Program in Molecular Pharmacology, Memorial Sloan Kettering Cancer Center, New York, New York 10065, USA
| | - Arnaldo A Arbini
- Laura and Isaac Perlmutter Cancer Center, NYU Grossman School of Medicine, The Alexandria Center for Life Science, New York, NY 10016, USA; Department of Pathology, NYU Grossman School of Medicine, The Alexandria Center for Life Science, New York, NY 10016, USA
| | - Michele Pagano
- Department of Biochemistry and Molecular Pharmacology, NYU Grossman School of Medicine, The Alexandria Center for Life Science, New York, NY 10016, USA; Laura and Isaac Perlmutter Cancer Center, NYU Grossman School of Medicine, The Alexandria Center for Life Science, New York, NY 10016, USA; Howard Hughes Medical Institute, NYU Grossman School of Medicine, The Alexandria Center for Life Science, New York, NY 10016, USA.
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17
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Upregulation of fibroblast growth factor 2 contributes to endometriosis through SPRYs/DUSP6/ERK signaling pathway. Acta Histochem 2021; 123:151749. [PMID: 34224989 DOI: 10.1016/j.acthis.2021.151749] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Revised: 06/23/2021] [Accepted: 06/25/2021] [Indexed: 12/19/2022]
Abstract
Previous studies report that fibroblast growth factor 2 (FGF2) modulates Sproutys (SPRYs)/dual specificity phosphatase 6 (DUSP6)/extracellular signal-regulated kinase (ERK) signaling pathway in endometrial glandular epithelial cells. However, its role in endometriosis remains unclear. The expression patterns and localization of related proteins in endometrium patients' samples were determined using quantitative reverse transcription PCR, Western blotting, and immunohistochemistry, respectively. Human endometrial stromal cells (HESCs) were isolated and transfected with small interfering RNA (siRNA) targeting FGF2 (FGF2-siRNA). Cell viability was determined using 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay. It was found that FGF2 mRNA and protein levels were increased in the ectopic endometrium, whilst the mRNA and protein levels of SPRYs/DUSP6/ERK signaling pathway related-genes were dysregulated. Spearman's rank correlation analysis revealed a negative correlation between FGF2 and SPRYs/DUSP6 signaling pathway-related proteins. In vitro study demonstrated that FGF2 silencing suppressed cell proliferation. Our results suggest that FGF2 upregulation might contribute to endometriosis via the regulation of the SPRYs/DUSP6/ERK signaling pathway.
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18
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Gao PP, Qi XW, Sun N, Sun YY, Zhang Y, Tan XN, Ding J, Han F, Zhang Y. The emerging roles of dual-specificity phosphatases and their specific characteristics in human cancer. Biochim Biophys Acta Rev Cancer 2021; 1876:188562. [PMID: 33964330 DOI: 10.1016/j.bbcan.2021.188562] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2021] [Revised: 04/15/2021] [Accepted: 05/02/2021] [Indexed: 12/15/2022]
Abstract
Reversible phosphorylation of proteins, controlled by kinases and phosphatases, is involved in various cellular processes. Dual-specificity phosphatases (DUSPs) can dephosphorylate phosphorylated serine, threonine and tyrosine residues. This family consists of 61 members, 44 of which have been identified in human, and these 44 members are classified into six subgroups, the phosphatase and tensin homolog (PTEN) protein phosphatases (PTENs), mitogen-activated protein kinase phosphatases (MKPs), atypical DUSPs, cell division cycle 14 (CDC14) phosphatases (CDC14s), slingshot protein phosphatases (SSHs), and phosphatases of the regenerating liver (PRLs). Growing evidence has revealed dysregulation of DUSPs as one of the common phenomenons and highlighted their key roles in human cancers. Furthermore, their differential expression may be a potential biomarker for tumor prognosis. Despite this, there are still many unstudied members of DUSPs need to further explore their precise roles and mechanism in cancers. Most importantly, the systematic review is very limited on the functional/mechanistic characteristics and clinical application of DUSPs at present. In this review, the structures, functions and underlying mechanisms of DUSPs are systematically reviewed, and the molecular and functional characteristics of DUSPs in different tumor types according to the current researches are summarized. In addition, the potential roles of the unstudied members and the possible different mechanisms of DUSPs in cancer are discussed and classified based on homology alignment and structural domain analyses. Moreover, the specific characteristics of their expression and prognosis are further determined in more than 30 types of human cancers by using the online databases. Finally, their potential application in precise diagnosis, prognosis and treatment of different types of cancers, and the main possible problems for the clinical application at present are prospected.
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Affiliation(s)
- Ping-Ping Gao
- Breast and Thyroid Surgery, Southwest Hospital, Army Medical University, Chongqing 400038, China
| | - Xiao-Wei Qi
- Breast and Thyroid Surgery, Southwest Hospital, Army Medical University, Chongqing 400038, China
| | - Na Sun
- Breast and Thyroid Surgery, Southwest Hospital, Army Medical University, Chongqing 400038, China
| | - Yuan-Yuan Sun
- Institute of Toxicology, College of Preventive Medicine, Army Medical University, Chongqing 400038, China; Department of Clinical Pharmacy, Jilin University School of Pharmaceutical Sciences, Changchun, Jilin 130023, China
| | - Ye Zhang
- Breast and Thyroid Surgery, Southwest Hospital, Army Medical University, Chongqing 400038, China
| | - Xuan-Ni Tan
- Breast and Thyroid Surgery, Southwest Hospital, Army Medical University, Chongqing 400038, China
| | - Jun Ding
- Department of Hepatobiliary Surgery, Third Affiliated Hospital of Chongqing Medical University, Chongqing 401120, China
| | - Fei Han
- Institute of Toxicology, College of Preventive Medicine, Army Medical University, Chongqing 400038, China.
| | - Yi Zhang
- Breast and Thyroid Surgery, Southwest Hospital, Army Medical University, Chongqing 400038, China.
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19
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Rienzo M, Sorrentino A, Di Zazzo E, Di Donato M, Carafa V, Marino MM, De Rosa C, Gazzerro P, Castoria G, Altucci L, Casamassimi A, Abbondanza C. Searching for a Putative Mechanism of RIZ2 Tumor-Promoting Function in Cancer Models. Front Oncol 2021; 10:583533. [PMID: 33585202 PMCID: PMC7880127 DOI: 10.3389/fonc.2020.583533] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Accepted: 12/08/2020] [Indexed: 12/16/2022] Open
Abstract
Positive Regulatory Domain (PRDM) gene family members commonly express two main molecular variants, the PR-plus isoform usually acting as tumor suppressor and the PR-minus one functioning as oncogene. Accordingly, PRDM2/RIZ encodes for RIZ1 (PR-plus) and RIZ2 (PR-minus). In human cancers, genetic or epigenetic modifications induce RIZ1 silencing with an expression level imbalance in favor of RIZ2 that could be relevant for tumorigenesis. Additionally, in estrogen target cells and tissues, estradiol increases RIZ2 expression level with concurrent increase of cell proliferation and survival. Several attempts to study RIZ2 function in HeLa or MCF-7 cells by its over-expression were unsuccessful. Thus, we over-expressed RIZ2 in HEK-293 cells, which are both RIZ1 and RIZ2 positive but unresponsive to estrogens. The forced RIZ2 expression increased cell viability and growth, prompted the G2-to-M phase transition and organoids formation. Accordingly, microarray analysis revealed that RIZ2 regulates several genes involved in mitosis. Consistently, RIZ silencing in both estrogen-responsive MCF-7 and -unresponsive MDA-MB-231 cells induced a reduction of cell proliferation and an increase of apoptosis rate. Our findings add novel insights on the putative RIZ2 tumor-promoting functions, although additional attempts are warranted to depict the underlying molecular mechanism.
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Affiliation(s)
- Monica Rienzo
- Department of Environmental, Biological, and Pharmaceutical Sciences and Technologies, University of Campania "Luigi Vanvitelli", Caserta, Italy
| | - Anna Sorrentino
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Erika Di Zazzo
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy.,Department of Medicine and Health Sciences "V. Tiberio", University of Molise, Campobasso, Italy
| | - Marzia Di Donato
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Vincenzo Carafa
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Maria Michela Marino
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Caterina De Rosa
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy
| | | | - Gabriella Castoria
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Lucia Altucci
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Amelia Casamassimi
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Ciro Abbondanza
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy
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Wan Q, Liu C, Liu C, Liu W, Wang X, Wang Z. Discovery and Validation of a Metastasis-Related Prognostic and Diagnostic Biomarker for Melanoma Based on Single Cell and Gene Expression Datasets. Front Oncol 2020; 10:585980. [PMID: 33324561 PMCID: PMC7722782 DOI: 10.3389/fonc.2020.585980] [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: 07/23/2020] [Accepted: 10/05/2020] [Indexed: 12/16/2022] Open
Abstract
Background Single cell sequencing can provide comprehensive information about gene expression in individual tumor cells, which can allow exploration of heterogeneity of malignant melanoma cells and identification of new anticancer therapeutic targets. Methods Single cell sequencing of 31 melanoma patients in GSE115978 was downloaded from the Gene Expression Omniniub (GEO) database. First, the limma package in R software was used to identify the differentially expressed metastasis related genes (MRGs). Next, we developed a prognostic MRGs biomarker in the cancer genome atlas (TCGA) by combining univariate cox analysis and the least absolute shrinkage and selection operator (LASSO) method and was further validated in another two independent datasets. The efficiency of MRGs biomarker in diagnosis of melanoma was also evaluated in multiple datasets. The pattern of somatic tumor mutation, immune infiltration, and underlying pathways were further explored. Furthermore, nomograms were constructed and decision curve analyses were also performed to evaluate the clinical usefulness of the nomograms. Results In total, 41 MRGs were screened out from 1958 malignant melanoma cell samples in GSE115978. Next, a 5-MRGs prognostic marker was constructed and validated, which show more effective performance for the diagnosis and prognosis of melanoma patients. The nomogram showed good accuracies in predicting 3 and 5 years survival, and the decision curve of nomogram model manifested a higher net benefit than tumor stage and clark level. In addition, melanoma patients can be divided into high and low risk subgroups, which owned differential mutation, immune infiltration, and clinical features. The low risk subgroup suffered from a higher tumor mutation burden (TMB), and higher levels of T cells infiltrating have a significantly longer survival time than the high risk subgroup. Gene Set Enrichment Analysis (GSEA) revealed that the extracellular matrix (ECM) receptor interaction and epithelial mesenchymal transition (EMT) were the most significant upregulated pathways in the high risk group. Conclusions We identified a robust MRGs marker based on single cell sequencing and validated in multiple independent cohort studies. Our finding provides a new clinical application for prognostic and diagnostic prediction and finds some potential targets against metastasis of melanoma.
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Affiliation(s)
- Qi Wan
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-Sen University, Guangzhou, China
| | - Chengxiu Liu
- Department of Ophthalmology, Affiliated Hospital of Qingdao University Medical College, Qingdao, China
| | - Chang Liu
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-Sen University, Guangzhou, China
| | - Weiqin Liu
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-Sen University, Guangzhou, China
| | - Xiaoran Wang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-Sen University, Guangzhou, China
| | - Zhichong Wang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-Sen University, Guangzhou, China
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Ma H, Shen L, Yang H, Gong H, Du X, Li J. m6A methyltransferase Wilms' tumor 1-associated protein facilitates cell proliferation and cisplatin resistance in NK/T cell lymphoma by regulating dual-specificity phosphatases 6 expression via m6A RNA methylation. IUBMB Life 2020; 73:108-117. [PMID: 33205540 DOI: 10.1002/iub.2410] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2020] [Revised: 10/19/2020] [Accepted: 10/28/2020] [Indexed: 12/21/2022]
Abstract
Nasal-type natural killer/T-cell lymphoma (NKTCL) is an aggressive malignancy with poor survival outcomes that is relatively resistant to chemotherapy. N6-Methyladenosine (m6A) modification, the most prevalent modification of eukaryotic messenger RNA, is involved in the progression of various tumors. However, it is unclear whether it has a physiological role in NKTCL development. To address this question, we probed its function and molecular mechanisms in NKTCL. Initially, we demonstrated that Wilms' tumor 1-associated protein (WTAP), a major RNA N6-adenosine methyltransferase, was obviously upregulated in human NKTCL cell lines (YTS and SNK-6 cells), compared with normal NK cells. Functionally, depletion of WTAP noticeably repressed proliferation and facilitated apoptosis in YTS and SNK-6 cells. Moreover, intervention of WTAP evidently prohibited NKTCL cell chemotherapy resistance to cisplatin, as reflected by a lower inhibition of cell viability and decreased expression of drug resistance-associated protein expression MRP-1 and P-gp in YTS and SNK-6 cells. With regard to the mechanism, we revealed that WTAP enhanced dual-specificity phosphatases 6 (DUSP6) expression by increasing m6A levels of DUSP6 mRNA transcript, leading to oncogenic functions in NKTCL. Interestingly, WTAP contributed to the progression and chemotherapy sensitivity of NKTCL by stabilizing DUSP6 mRNA in an m6A-dependent manner. Taken together, these findings uncovered a critical function for WTAP-guided m6A methylation and identified DUSP6 as an important target of m6A modification in the regulation of chemotherapy resistance in NKTCL oncogenesis. This study highlights WTAP as a potential therapeutic target of NKTCL treatment.
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Affiliation(s)
- HongYan Ma
- Department of Hematopathology, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - LiYun Shen
- Department of Hematopathology, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Hua Yang
- Department of Hematopathology, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - HongTao Gong
- Department of Hematopathology, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - XingJun Du
- Department of Hematopathology, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - JunBo Li
- Department of Hematopathology, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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Zuchegna C, Di Zazzo E, Moncharmont B, Messina S. Dual-specificity phosphatase (DUSP6) in human glioblastoma: epithelial-to-mesenchymal transition (EMT) involvement. BMC Res Notes 2020; 13:374. [PMID: 32771050 PMCID: PMC7414695 DOI: 10.1186/s13104-020-05214-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Accepted: 07/29/2020] [Indexed: 12/14/2022] Open
Abstract
Objective Glioblastoma (GBM) is the most aggressive and common form of primary brain cancer. Survival is poor and improved treatment options are urgently needed. Dual specificity phosphatase-6 (DUSP6) is actively involved in oncogenesis showing unexpected tumor-promoting properties in human glioblastoma, contributing to the development and expression of the full malignant and invasive phenotype. The purpose of this study was to assess if DUSP6 activates epithelial-to-mesenchymal transition (EMT) in glioblastoma and its connection with the invasive capacity. Results We found high levels of transcripts mRNA by qPCR analysis in a panel of primary GBM compared to adult or fetal normal tissues. At translational levels, these data correlate with high protein expression and long half-life values by cycloheximide-chase assay in immunoblot experiments. Next, we demonstrate that DUSP6 gene is involved in epithelial-to-mesenchymal transition (EMT) in GBM by immunoblot characterization of the mesenchymal and epithelial markers. Vimentin, N-Cadherin, E-Cadherin and fibronectin were measured with and without DUSP6 over-expression, and in response to several stimuli such as chemotherapy treatment. In particular, the high levels of vimentin were blunted at increasing doses of cisplatin in condition of DUSP6 over-expression while N-Cadherin contextually increased. Finally, DUSP6 per se increased invasion capacity of GBM. Overall, our data unveil the DUSP6 involvement in invasive mesenchymal-like properties in GBM.
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Affiliation(s)
- Candida Zuchegna
- Department of Biology, Federico II University of Naples, 80126, Naples, Italy
| | - Erika Di Zazzo
- Department of Medicine and Health Sciences "V. Tiberio", University of Molise, 86100, Campobasso, Italy
| | - Bruno Moncharmont
- Department of Medicine and Health Sciences "V. Tiberio", University of Molise, 86100, Campobasso, Italy
| | - Samantha Messina
- Department of Science, Roma Tre University, Viale Guglielmo Marconi 446, 00146, Rome, Italy.
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Chen L, Wang Y, Luan H, Ma G, Zhang H, Chen G. DUSP6 protects murine podocytes from high glucose‑induced inflammation and apoptosis. Mol Med Rep 2020; 22:2273-2282. [PMID: 32705203 PMCID: PMC7411363 DOI: 10.3892/mmr.2020.11317] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Accepted: 06/15/2020] [Indexed: 11/06/2022] Open
Abstract
Diabetic nephropathy (DN) is one of the most severe complications that can occur in patients with diabetes, and without effective and timely therapeutic intervention, can gradually progress to renal failure. Previous studies have focused on investigating the pathogenesis of DN; however, the role of dual‑specificity phosphatase 6 (DUSP6) in DN is not completely understood. Therefore, the present study aimed to investigate the role of dual‑specificity phosphatase 6 (DUSP6) in DN. DN model mice were established and the expression levels of DUSP6 in the kidney tissues and high glucose (HG)‑induced murine podocytes (MPC5 cells) were determined using immunohistochemistry, reverse transcription‑quantitative PCR and western blotting. In addition, the levels of reactive oxygen species (ROS) and inflammatory cytokines in MPC5 cells were analyzed using commercial assay kits or ELISA kits, respectively, and flow cytometric analysis was performed to analyze the rate of cell apoptosis. The present study indicated that DUSP6 expression levels were significantly decreased in DN model mice compared with control mice, and in HG‑induced MPC5 cells compared with normal glucose‑induced MPC5 cells. DUSP6 overexpression enhanced MPC5 cell viability and increased protein expression levels of cell markers, such as synaptopodin and nephrin, compared with the negative control group. DUSP6 overexpression also reduced the levels of ROS and inflammatory cytokines, including interleukin (IL)‑1β, IL‑6 and tumor necrosis factor‑α secreted by MPC5 cells under HG conditions. Moreover, compared with the HG group, cell apoptosis was inhibited by DUSP6 overexpression under HG conditions, which was further indicated by decreased expression levels of cleaved caspase‑3 and Bax. Thus, these findings indicated that DUSP6 mediated the protection against HG‑induced inflammatory response.
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Affiliation(s)
- Liqiang Chen
- School of Basic Medicine, Jiamusi University, Jiamusi, Heilongjiang 154002, P.R. China
| | - Yaokun Wang
- School of Basic Medicine, Jiamusi University, Jiamusi, Heilongjiang 154002, P.R. China
| | - Haiyan Luan
- School of Basic Medicine, Jiamusi University, Jiamusi, Heilongjiang 154002, P.R. China
| | - Guangyu Ma
- School of Basic Medicine, Jiamusi University, Jiamusi, Heilongjiang 154002, P.R. China
| | - Huiming Zhang
- School of Basic Medicine, Jiamusi University, Jiamusi, Heilongjiang 154002, P.R. China
| | - Guang Chen
- School of Basic Medicine, Jiamusi University, Jiamusi, Heilongjiang 154002, P.R. China
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24
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Expression analysis of DUSP6, DAB2IP, and RKIP genes in patients with head and neck squamous cell carcinoma. Meta Gene 2020. [DOI: 10.1016/j.mgene.2020.100692] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
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Wu S, Luo C, Hameed NUF, Wang Y, Zhuang D. UCP2 silencing in glioblastoma reduces cell proliferation and invasiveness by inhibiting p38 MAPK pathway. Exp Cell Res 2020; 394:112110. [PMID: 32470336 DOI: 10.1016/j.yexcr.2020.112110] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2019] [Revised: 05/20/2020] [Accepted: 05/21/2020] [Indexed: 02/06/2023]
Abstract
Uncoupling protein-2 (UCP2) is a mitochondrial inner membrane anion carrier and is emerging as a negative regulator of ROS production. Overexpression of UCP2 has been detected in various tumors, but its role in glioblastoma remains unclear. Using tissue microarrays and interrogations of public databases, we explored that the expression of UCP2 is upregulated in glioma, especially in GBM, and overexpression of UCP2 correlates with poor prognosis in glioma patients. To further reveal the role of UCP2 in glioma, UCP2-slienced cell lines (U251, U87MG and A172) by lentivirus were constructed to study how silenced UCP2 expression affects cellular functions in vitro, and tumorigenicity in vivo. RNA-Seq based genome and pathway analysis were performed to elucidate the underlying mechanisms of action of UCP2. Our results revealed that UCP2 silenced glioma cells show inhibited migration, invasiveness, clonogenicity, proliferation, promoted cell apoptosis in vitro, and weaker tumorigenicity in nude mice. Transcriptome analysis suggested a UCP2-dependent regulation of p38 MAPK (Mitogen-activated protein kinase) signaling networks, which was further validated by qRT-PCR and Western blot. Our research provides a new insight into the biological significance of UCP2 in glioma and its potential application in treatment and diagnosis.
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Affiliation(s)
- Shuai Wu
- Glioma Surgery Division, Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai, 200040, China
| | - Chen Luo
- Glioma Surgery Division, Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai, 200040, China
| | - N U Farrukh Hameed
- Glioma Surgery Division, Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai, 200040, China
| | - Ye Wang
- Glioma Surgery Division, Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai, 200040, China
| | - Dongxiao Zhuang
- Glioma Surgery Division, Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai, 200040, China.
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Kato M, Onoyama I, Yoshida S, Cui L, Kawamura K, Kodama K, Hori E, Matsumura Y, Yagi H, Asanoma K, Yahata H, Itakura A, Takeda S, Kato K. Dual-specificity phosphatase 6 plays a critical role in the maintenance of a cancer stem-like cell phenotype in human endometrial cancer. Int J Cancer 2020; 147:1987-1999. [PMID: 32159851 PMCID: PMC7496376 DOI: 10.1002/ijc.32965] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Revised: 02/12/2020] [Accepted: 03/04/2020] [Indexed: 12/16/2022]
Abstract
The prognosis of patients with high‐grade or advanced‐stage endometrial cancer remains poor. As cancer stem‐like cells (CSCs) are thought to be associated with endometrial cancers, it is essential to investigate the molecular mechanisms that regulate endometrial CSCs. Dual‐specificity phosphatase 6 (DUSP6) functions as a negative‐feedback regulator of MAPK–ERK1/2 signaling, but its role in endometrial cancer remains unknown. We investigated whether DUSP6 is involved in cancer cell stemness using endometrial cancer cell lines and specimens from endometrial cancer patients. DUSP6 induced the expression of CSC‐related genes including ALDH1, Nanog, SOX2 and Oct4A, increased the population of cells in the G0/G1 phase, and promoted sphere formation ability. DUSP6 knockdown resulted in reduced cell invasion and metastasis, whereas DUSP6 overexpression inhibited apoptosis under serum‐free conditions. Moreover, DUSP6 decreased phosphorylated ERK1/2 and increased phosphorylated Akt levels, which potentially induces CSC features. In patients with endometrial cancers, DUSP6 expression was determined using immunohistochemistry, and based on the results, the patients were dichotomized into high‐ and low‐DUSP6‐expression groups. Progression‐free survival and overall survival were significantly shorter in the high‐DUSP6‐expression group. These results suggest that DUSP6 has potential value as a biomarker of CSCs and as a target of therapies designed to eliminate CSCs in endometrial cancer. What's new? Although cancer stem‐like cells (CSCs) are involved in human endometrial cancers, the underlying molecular mechanisms and biomarkers for CSCs in endometrial cancers remain elusive. Here, the authors found that DUSP6 plays an important role in regulating endometrial CSC phenotypes by increasing self‐renewal ability and starvation resistance. DUSP6 expression was required for inducing invasion and metastasis and resulted in ERK1/2 dephosphorylation and Akt phosphorylation, which potentially contribute to the promotion of CSC phenotypes. As DUSP6 expression was also positively associated with worse progression‐free and overall survival, DUSP6 represents a potential biomarker for endometrial CSCs and a therapeutic target in endometrial cancers.
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Affiliation(s)
- Masaya Kato
- Department of Obstetrics and GynecologySchool of Medical Sciences, Kyushu UniversityFukuokaJapan
- Department of Obstetrics and GynecologySchool of Medical Sciences, Juntendo UniversityTokyoJapan
| | - Ichiro Onoyama
- Department of Obstetrics and GynecologySchool of Medical Sciences, Kyushu UniversityFukuokaJapan
| | - Sachiko Yoshida
- Department of Obstetrics and GynecologySchool of Medical Sciences, Kyushu UniversityFukuokaJapan
| | - Lin Cui
- Department of Obstetrics and GynecologySchool of Medical Sciences, Kyushu UniversityFukuokaJapan
| | - Keiko Kawamura
- Department of Obstetrics and GynecologySchool of Medical Sciences, Kyushu UniversityFukuokaJapan
| | - Keisuke Kodama
- Department of Obstetrics and GynecologySchool of Medical Sciences, Kyushu UniversityFukuokaJapan
| | - Emiko Hori
- Department of Obstetrics and GynecologySchool of Medical Sciences, Kyushu UniversityFukuokaJapan
| | - Yumiko Matsumura
- Department of Obstetrics and GynecologySchool of Medical Sciences, Kyushu UniversityFukuokaJapan
| | - Hiroshi Yagi
- Department of Obstetrics and GynecologySchool of Medical Sciences, Kyushu UniversityFukuokaJapan
| | - Kazuo Asanoma
- Department of Obstetrics and GynecologySchool of Medical Sciences, Kyushu UniversityFukuokaJapan
| | - Hideaki Yahata
- Department of Obstetrics and GynecologySchool of Medical Sciences, Kyushu UniversityFukuokaJapan
| | - Atsuo Itakura
- Department of Obstetrics and GynecologySchool of Medical Sciences, Juntendo UniversityTokyoJapan
| | - Satoru Takeda
- Department of Obstetrics and GynecologySchool of Medical Sciences, Juntendo UniversityTokyoJapan
| | - Kiyoko Kato
- Department of Obstetrics and GynecologySchool of Medical Sciences, Kyushu UniversityFukuokaJapan
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Gao Y, Li H, Han Q, Li Y, Wang T, Huang C, Mao Y, Wang X, Zhang Q, Tian J, Irwin DM, Tan H, Guo H. Overexpression of DUSP6 enhances chemotherapy-resistance of ovarian epithelial cancer by regulating the ERK signaling pathway. J Cancer 2020; 11:3151-3164. [PMID: 32231719 PMCID: PMC7097933 DOI: 10.7150/jca.37267] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Accepted: 01/19/2020] [Indexed: 12/11/2022] Open
Abstract
Objective: DUSP6 is a negative regulator of the ERK signaling pathway and plays an important role in chemotherapy-resistance. Previously we showed that DUSP6 is overexpressed in ovarian cancer side population (SP) cells that possess cancer stem cell-like properties and are quiescent and chemotherapy-resistant. Here, we explore the effects of DUSP6 on chemotherapy-resistance by examining its regulation of the ERK signaling pathway and G0/G1 cell cycle arrest. Methods: mRNA and protein expression of DUSP6 and G0/G1 cell cycle checkpoint regulating proteins (CyclinD1, CyclinD3 and CyclinE2) was evaluated among ovarian cancer cell lines and tissue samples. Ovarian cancer cells were transiently transfected to overexpress DUSP6. After treatment with cisplatin, cell viability was measured by the MTS assay at 48 hours and the half maximal inhibitory concentration (IC50) for each cell line was calculated. Subcellular localization and cell cycle analysis were determined by using immunofluorescence and FACS, respectively. Results: SKOV3 and OVCAR8 SP cells were shown to express higher levels of DUSP6 and lower levels of CyclinD3 compared with non-SP (NSP) cells (P<0.001). Among 39 ovarian cancer tissue samples, expression of DUSP6 in the chemotherapy-resistant group (12 samples) was higher than in the chemotherapy-sensitive group (27 samples) (P<0.05). While a lower level of expression of CyclinD3 was seen in the chemotherapy-resistant group, it was not statistically different from the chemotherapy-sensitive group. HO8910 cells where shown to have higher IC50 to cisplatin than SKOV3 or OVCAR8 cells, and this correlated with higher levels of DUSP6 expression. Overexpression of DUSP6 in SKOV3 cells led to an increase in cisplatin IC50 values (P<0.05), and also markedly reduced the expression levels of phospho-ERK1/2 and CyclinD3 and to the predominance of cells in the G0/G1 phase. Conclusion: Our findings reveal an enhancement of chemotherapy-resistance and a predominance of cells in G1 cell cycle arrest in DUSP6-overexpressing ovarian cancer cells. This suggests that overexpression of DUSP6 promotes chemotherapy-resistance through the negative regulation of the ERK signaling pathway, increasing the G0/G1 phase ratio among ovarian cancer cells, and leading to cellular quiescence.
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Affiliation(s)
- Yan Gao
- Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing
| | - Hui Li
- Department of Pharmacology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing
| | - Qing Han
- Department of Pharmacology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing
| | - Yuan Li
- Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing
| | - Tongxia Wang
- Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing
| | - Cuiyu Huang
- Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing
| | - Yiqing Mao
- Department of Pharmacology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing
| | - Xi Wang
- Department of Pharmacology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing
| | - Qun Zhang
- Department of Pharmacology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing
| | - Junrui Tian
- Department of Pharmacology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing
| | - David M Irwin
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Canada
| | - Huanran Tan
- Department of Pharmacology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing
| | - Hongyan Guo
- Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing
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Ruckert MT, de Andrade PV, Santos VS, Silveira VS. Protein tyrosine phosphatases: promising targets in pancreatic ductal adenocarcinoma. Cell Mol Life Sci 2019; 76:2571-2592. [PMID: 30982078 PMCID: PMC11105579 DOI: 10.1007/s00018-019-03095-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Revised: 03/25/2019] [Accepted: 04/08/2019] [Indexed: 12/21/2022]
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is the most common type of pancreatic cancer. It is the fourth leading cause of cancer-related death and is associated with a very poor prognosis. KRAS driver mutations occur in approximately 95% of PDAC cases and cause the activation of several signaling pathways such as mitogen-activated protein kinase (MAPK) pathways. Regulation of these signaling pathways is orchestrated by feedback loops mediated by the balance between protein tyrosine kinases (PTKs) and protein tyrosine phosphatases (PTPs), leading to activation or inhibition of its downstream targets. The human PTPome comprises 125 members, and these proteins are classified into three distinct families according to their structure. Since PTP activity description, it has become clear that they have both inhibitory and stimulatory effects on cancer-associated signaling processes and that deregulation of PTP function is closely associated with tumorigenesis. Several PTPs have displayed either tumor suppressor or oncogenic characteristics during the development and progression of PDAC. In this sense, PTPs have been presented as promising candidates for the treatment of human pancreatic cancer, and many PTP inhibitors have been developed since these proteins were first associated with cancer. Nevertheless, some challenges persist regarding the development of effective and safe methods to target these molecules and deliver these drugs. In this review, we discuss the role of PTPs in tumorigenesis as tumor suppressor and oncogenic proteins. We have focused on the differential expression of these proteins in PDAC, as well as their clinical implications and possible targeting for pharmacological inhibition in cancer therapy.
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Affiliation(s)
- Mariana Tannús Ruckert
- Department of Genetics, Ribeirão Preto Medical School, University of São Paulo, Av. Bandeirantes 3900, Ribeirão Preto, São Paulo, Brazil
| | - Pamela Viani de Andrade
- Department of Genetics, Ribeirão Preto Medical School, University of São Paulo, Av. Bandeirantes 3900, Ribeirão Preto, São Paulo, Brazil
| | - Verena Silva Santos
- Department of Genetics, Ribeirão Preto Medical School, University of São Paulo, Av. Bandeirantes 3900, Ribeirão Preto, São Paulo, Brazil
| | - Vanessa Silva Silveira
- Department of Genetics, Ribeirão Preto Medical School, University of São Paulo, Av. Bandeirantes 3900, Ribeirão Preto, São Paulo, Brazil.
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Zaballos MA, Acuña-Ruiz A, Morante M, Crespo P, Santisteban P. Regulators of the RAS-ERK pathway as therapeutic targets in thyroid cancer. Endocr Relat Cancer 2019; 26:R319-R344. [PMID: 30978703 DOI: 10.1530/erc-19-0098] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Accepted: 04/11/2019] [Indexed: 12/30/2022]
Abstract
Thyroid cancer is mostly an ERK-driven carcinoma, as up to 70% of thyroid carcinomas are caused by mutations that activate the RAS/ERK mitogenic signaling pathway. The incidence of thyroid cancer has been steadily increasing for the last four decades; yet, there is still no effective treatment for advanced thyroid carcinomas. Current research efforts are focused on impairing ERK signaling with small-molecule inhibitors, mainly at the level of BRAF and MEK. However, despite initial promising results in animal models, the clinical success of these inhibitors has been limited by the emergence of tumor resistance and relapse. The RAS/ERK pathway is an extremely complex signaling cascade with multiple points of control, offering many potential therapeutic targets: from the modulatory proteins regulating the activation state of RAS proteins to the scaffolding proteins of the pathway that provide spatial specificity to the signals, and finally, the negative feedbacks and phosphatases responsible for inactivating the pathway. The aim of this review is to give an overview of the biology of RAS/ERK regulators in human cancer highlighting relevant information on thyroid cancer and future areas of research.
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Affiliation(s)
- Miguel A Zaballos
- Instituto de Investigaciones Biomédicas 'Alberto Sols', Consejo Superior de Investigaciones Científicas (CSIC), Universidad Autónoma de Madrid (UAM), Madrid, Spain
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Instituto de Salud Carlos III, Madrid, Spain
| | - Adrián Acuña-Ruiz
- Instituto de Investigaciones Biomédicas 'Alberto Sols', Consejo Superior de Investigaciones Científicas (CSIC), Universidad Autónoma de Madrid (UAM), Madrid, Spain
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Instituto de Salud Carlos III, Madrid, Spain
| | - Marta Morante
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Instituto de Salud Carlos III, Madrid, Spain
- Instituto de Biomedicina y Biotecnología de Cantabria (IBBTEC), Consejo Superior de Investigaciones Científicas (CSIC), Universidad de Cantabria, Santander, Spain
| | - Piero Crespo
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Instituto de Salud Carlos III, Madrid, Spain
- Instituto de Biomedicina y Biotecnología de Cantabria (IBBTEC), Consejo Superior de Investigaciones Científicas (CSIC), Universidad de Cantabria, Santander, Spain
| | - Pilar Santisteban
- Instituto de Investigaciones Biomédicas 'Alberto Sols', Consejo Superior de Investigaciones Científicas (CSIC), Universidad Autónoma de Madrid (UAM), Madrid, Spain
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Instituto de Salud Carlos III, Madrid, Spain
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Inhibition of DUSP6 sensitizes ovarian cancer cells to chemotherapeutic agents via regulation of ERK signaling response genes. Oncotarget 2019. [DOI: 10.18632/oncotarget.26915] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
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Pérez-Sen R, Queipo MJ, Gil-Redondo JC, Ortega F, Gómez-Villafuertes R, Miras-Portugal MT, Delicado EG. Dual-Specificity Phosphatase Regulation in Neurons and Glial Cells. Int J Mol Sci 2019; 20:ijms20081999. [PMID: 31018603 PMCID: PMC6514851 DOI: 10.3390/ijms20081999] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Revised: 04/19/2019] [Accepted: 04/19/2019] [Indexed: 01/03/2023] Open
Abstract
Dual-specificity protein phosphatases comprise a protein phosphatase subfamily with selectivity towards mitogen-activated protein (MAP) kinases, also named MKPs, or mitogen-activated protein kinase (MAPK) phosphatases. As powerful regulators of the intensity and duration of MAPK signaling, a relevant role is envisioned for dual-specificity protein phosphatases (DUSPs) in the regulation of biological processes in the nervous system, such as differentiation, synaptic plasticity, and survival. Important neural mediators include nerve growth factor (NGF) and brain-derived neurotrophic factor (BDNF) that contribute to DUSP transcriptional induction and post-translational mechanisms of DUSP protein stabilization to maintain neuronal survival and differentiation. Potent DUSP gene inducers also include cannabinoids, which preserve DUSP activity in inflammatory conditions. Additionally, nucleotides activating P2X7 and P2Y13 nucleotide receptors behave as novel players in the regulation of DUSP function. They increase cell survival in stressful conditions, regulating DUSP protein turnover and inducing DUSP gene expression. In general terms, in the context of neural cells exposed to damaging conditions, the recovery of DUSP activity is neuroprotective and counteracts pro-apoptotic over-activation of p38 and JNK. In addition, remarkable changes in DUSP function take place during the onset of neuropathologies. The restoration of proper DUSP levels and recovery of MAPK homeostasis underlie the therapeutic effect, indicating that DUSPs can be relevant targets for brain diseases.
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Affiliation(s)
- Raquel Pérez-Sen
- Departamento de Bioquímica y Biología Molecular, Facultad de Veterinaria, Instituto Universitario de Investigación en Neuroquímica (IUIN), Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdiSSC), Universidad Complutense Madrid, 28040 Madrid, Spain.
| | - María José Queipo
- Departamento de Bioquímica y Biología Molecular, Facultad de Veterinaria, Instituto Universitario de Investigación en Neuroquímica (IUIN), Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdiSSC), Universidad Complutense Madrid, 28040 Madrid, Spain.
| | - Juan Carlos Gil-Redondo
- Departamento de Bioquímica y Biología Molecular, Facultad de Veterinaria, Instituto Universitario de Investigación en Neuroquímica (IUIN), Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdiSSC), Universidad Complutense Madrid, 28040 Madrid, Spain.
| | - Felipe Ortega
- Departamento de Bioquímica y Biología Molecular, Facultad de Veterinaria, Instituto Universitario de Investigación en Neuroquímica (IUIN), Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdiSSC), Universidad Complutense Madrid, 28040 Madrid, Spain.
| | - Rosa Gómez-Villafuertes
- Departamento de Bioquímica y Biología Molecular, Facultad de Veterinaria, Instituto Universitario de Investigación en Neuroquímica (IUIN), Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdiSSC), Universidad Complutense Madrid, 28040 Madrid, Spain.
| | - María Teresa Miras-Portugal
- Departamento de Bioquímica y Biología Molecular, Facultad de Veterinaria, Instituto Universitario de Investigación en Neuroquímica (IUIN), Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdiSSC), Universidad Complutense Madrid, 28040 Madrid, Spain.
| | - Esmerilda G Delicado
- Departamento de Bioquímica y Biología Molecular, Facultad de Veterinaria, Instituto Universitario de Investigación en Neuroquímica (IUIN), Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdiSSC), Universidad Complutense Madrid, 28040 Madrid, Spain.
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Ramkissoon A, Chaney KE, Milewski D, Williams KB, Williams RL, Choi K, Miller A, Kalin TV, Pressey JG, Szabo S, Azam M, Largaespada DA, Ratner N. Targeted Inhibition of the Dual Specificity Phosphatases DUSP1 and DUSP6 Suppress MPNST Growth via JNK. Clin Cancer Res 2019; 25:4117-4127. [PMID: 30936125 DOI: 10.1158/1078-0432.ccr-18-3224] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Revised: 02/13/2019] [Accepted: 03/28/2019] [Indexed: 02/06/2023]
Abstract
PURPOSE In neurofibromatosis type 1 (NF1) and in highly aggressive malignant peripheral nerve sheath tumors (MPNSTs), constitutively active RAS-GTP and increased MAPK signaling are important in tumorigenesis. Dual specificity phosphatases (DUSPs) are negative regulators of MAPK signaling that dephosphorylate p38, JNK, and ERK in different settings. Although often acting as tumor suppressors, DUSPs may also act as oncogenes, helping tumor cells adapt to high levels of MAPK signaling. We hypothesized that inhibiting DUSPs might be selectively toxic to cells from NF1-driven tumors. EXPERIMENTAL DESIGN We examined DUSP gene and protein expression in neurofibroma and MPNSTs. We used small hairpin RNA (shRNA) to knock down DUSP1 and DUSP6 to evaluate cell growth, downstream MAPK signaling, and mechanisms of action. We evaluated the DUSP inhibitor, (E)-2-benzylidene-3-(cyclohexylamino)-2,3-dihydro-1H-inden-1-one (BCI), in MPNST cell lines and in cell-line and patient-derived MPNST xenografts. RESULTS DUSP1 and DUSP6 are expressed in NF1-deleted tumors. Knockdown of DUSP1 and DUSP6, alone or in combination, reduced MPNST cell growth and led to ERK and JNK hyperactivation increasing downstream TP53 and p-ATM. The DUSP inhibitor, BCI, diminished the survival of NF1-deleted Schwann cells and MPNST cell lines through activation of JNK. In vivo, treatment of an established cell-line xenograft or a novel patient-derived xenograft (PDX) of MPNSTs with BCI increased ERK and JNK activation, caused tumor necrosis and fibrosis, and reduced tumor volume in one model. CONCLUSIONS Targeting DUSP1 and DUSP6 genetically or with BCI effectively inhibits MPNST cell growth and promotes cell death, in vitro and in xenograft models. The data support further investigation of DUSP inhibition in MPNSTs.
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Affiliation(s)
| | | | - David Milewski
- Cincinnati Children's Hospital Medical Center, Cincinnati, OH
| | - Kyle B Williams
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN
| | - Rory L Williams
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN
| | - Kwangmin Choi
- Cincinnati Children's Hospital Medical Center, Cincinnati, OH
| | - Adam Miller
- University of Cincinnati College of Medicine, Cincinnati, OH
| | - Tanya V Kalin
- Cincinnati Children's Hospital Medical Center, Cincinnati, OH
| | | | - Sara Szabo
- Cincinnati Children's Hospital Medical Center, Cincinnati, OH
| | - Mohammad Azam
- Cincinnati Children's Hospital Medical Center, Cincinnati, OH
| | | | - Nancy Ratner
- Cincinnati Children's Hospital Medical Center, Cincinnati, OH.
- University of Cincinnati College of Medicine, Cincinnati, OH
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James NE, Oliver MT, Ribeiro JR, Cantillo E, Rowswell-Turner RB, Kim KK, Chichester CO, DiSilvestro PA, Moore RG, Singh RK, Yano N, Zhao TC. Human Epididymis Secretory Protein 4 (HE4) Compromises Cytotoxic Mononuclear Cells via Inducing Dual Specificity Phosphatase 6. Front Pharmacol 2019; 10:216. [PMID: 30941033 PMCID: PMC6433991 DOI: 10.3389/fphar.2019.00216] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Accepted: 02/20/2019] [Indexed: 01/07/2023] Open
Abstract
While selective overexpression of serum clinical biomarker Human epididymis secretory protein 4 (HE4) is indicative of ovarian cancer tumorigenesis, much is still known about the mechanistic role of the HE4 gene or gene product. Here, we examine the role of the secretory glycoprotein HE4 in ovarian cancer immune evasion. Through modified subtractive hybridization analyses of human peripheral blood mononuclear cells (PBMCs), we have characterized gene targets of HE4 and established a preliminary mechanism of HE4-mediated immune failure in ovarian tumors. Dual specificity phosphatase 6 (DUSP6) emerged as the most upregulated gene in PBMCs upon in vitro exposure to HE4. DUSP6 was found to be upregulated in CD8+ cells and CD56+ cells. HE4 exposure reduced Erk1/2 phosphorylation specifically in these cell populations and the effect was erased by co-incubation with a DUSP6 inhibitor, (E)-2-benzylidene-3-(cyclohexylamino)-2,3-dihydro-1H-inden-1-one (BCI). In co-culture with PBMCs, HE4-silenced SKOV3 human ovarian cancer cells exhibited enhanced proliferation upon exposure to external HE4, while this effect was partially attenuated by adding BCI to the culture. Additionally, the reversal effects of BCI were erased in the co-culture with CD8+ / CD56+ cell deprived PBMCs. Taken together, these findings show that HE4 enhances tumorigenesis of ovarian cancer by compromising cytotoxic CD8+ and CD56+ cells through upregulation of self-produced DUSP6.
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Affiliation(s)
- Nicole E James
- Program in Women's Oncology, Department of Obstetrics and Gynecology, Women & Infants Hospital, Warren Alpert Medical School of Brown University, Providence, RI, United States.,Department of Pharmacy, University of Rhode Island, Kingston, RI, United States
| | - Matthew T Oliver
- Program in Women's Oncology, Department of Obstetrics and Gynecology, Women & Infants Hospital, Warren Alpert Medical School of Brown University, Providence, RI, United States
| | - Jennifer R Ribeiro
- Program in Women's Oncology, Department of Obstetrics and Gynecology, Women & Infants Hospital, Warren Alpert Medical School of Brown University, Providence, RI, United States
| | - Evelyn Cantillo
- Program in Women's Oncology, Department of Obstetrics and Gynecology, Women & Infants Hospital, Warren Alpert Medical School of Brown University, Providence, RI, United States
| | - Rachael B Rowswell-Turner
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, Wilmot Cancer Institute, University of Rochester Medical Center, Rochester, NY, United States
| | - Kyu-Kwang Kim
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, Wilmot Cancer Institute, University of Rochester Medical Center, Rochester, NY, United States
| | | | - Paul A DiSilvestro
- Program in Women's Oncology, Department of Obstetrics and Gynecology, Women & Infants Hospital, Warren Alpert Medical School of Brown University, Providence, RI, United States
| | - Richard G Moore
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, Wilmot Cancer Institute, University of Rochester Medical Center, Rochester, NY, United States
| | - Rakesh K Singh
- Program in Women's Oncology, Department of Obstetrics and Gynecology, Women & Infants Hospital, Warren Alpert Medical School of Brown University, Providence, RI, United States.,Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, Wilmot Cancer Institute, University of Rochester Medical Center, Rochester, NY, United States
| | - Naohiro Yano
- Program in Women's Oncology, Department of Obstetrics and Gynecology, Women & Infants Hospital, Warren Alpert Medical School of Brown University, Providence, RI, United States.,Department of Surgery, Roger Williams Medical Center, Boston University Medical School, Providence, RI, United States
| | - Ting C Zhao
- Department of Surgery, Roger Williams Medical Center, Boston University Medical School, Providence, RI, United States
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Klimanova EA, Sidorenko SV, Smolyaninova LV, Kapilevich LV, Gusakova SV, Lopina OD, Orlov SN. Ubiquitous and cell type-specific transcriptomic changes triggered by dissipation of monovalent cation gradients in rodent cells: Physiological and pathophysiological implications. CURRENT TOPICS IN MEMBRANES 2019; 83:107-149. [PMID: 31196602 DOI: 10.1016/bs.ctm.2019.01.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Elevation of [Na+]i/[K+]i-ratio is considered as one of the major signals triggering transcriptomic changes in various cells types. In this study, we identified ubiquitous and cell type-specific [Formula: see text] -sensitive genes by comparative analysis of transcriptomic changes in ouabain-treated rat aorta smooth muscle cells and rat aorta endothelial cells (RASMC and RAEC, respectively), rat cerebellar granule cells (RCGC), and mouse C2C12 myoblasts. Exposure of the cells to ouabain increased intracellular Na+ content by ~14, 8, 7, and 6-fold and resulted in appearance of 7577, 2698, 2120, and 1146 differentially expressed transcripts in RAEC, RASMC, C2C12, and RCGC, respectively. Eighty-three genes were found as the intersection of the four sets of identified transcripts corresponding to each cell type and are classified as ubiquitous. Among the 10 top upregulated ubiquitous transcripts are the following: Dusp6, Plk3, Trib1, Ccl7, Mafk, Atf3, Ptgs2, Cxcl1, Spry4, and Coq10b. Unique transcripts whose expression is cell-specific include 4897, 1523, 789, and 494 transcripts for RAEC, RASMC, C2C12, and RCGC, respectively. The role of gene expression and signal pathways induced by dissipation of transmembrane gradient of monovalent cations in the development of various diseases is discussed with special attention to cardiovascular and pulmonary illnesses.
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Affiliation(s)
- Elizaveta A Klimanova
- Faculty of Biology, Lomonosov Moscow State University, Moscow, Russia; National Research Tomsk State University, Tomsk, Russia.
| | - Svetlana V Sidorenko
- Faculty of Biology, Lomonosov Moscow State University, Moscow, Russia; National Research Tomsk State University, Tomsk, Russia
| | - Larisa V Smolyaninova
- Faculty of Biology, Lomonosov Moscow State University, Moscow, Russia; National Research Tomsk State University, Tomsk, Russia
| | | | | | - Olga D Lopina
- Faculty of Biology, Lomonosov Moscow State University, Moscow, Russia
| | - Sergei N Orlov
- Faculty of Biology, Lomonosov Moscow State University, Moscow, Russia; National Research Tomsk State University, Tomsk, Russia; Siberian State Medical University, Tomsk, Russia
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Liang R, Zhi Y, Zheng G, Zhang B, Zhu H, Wang M. Analysis of long non-coding RNAs in glioblastoma for prognosis prediction using weighted gene co-expression network analysis, Cox regression, and L1-LASSO penalization. Onco Targets Ther 2018; 12:157-168. [PMID: 30613154 PMCID: PMC6306053 DOI: 10.2147/ott.s171957] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Purpose This study focused on identification of long non-coding RNAs (lncRNAs) for prognosis prediction of glioblastoma (GBM) through weighted gene co-expression network analysis (WGCNA) and L1-penalized least absolute shrinkage and selection operator (LASSO) Cox proportional hazards (PH) model. Materials and methods WGCNA was performed based on RNA expression profiles of GBM from Chinese Glioma Genome Atlas (CGGA), National Center for Biotechnology Information (NCBI) Gene Expression Omnibus (GEO), and the European Bioinformatics Institute ArrayExpress for the identification of GBM-related modules. Subsequently, prognostic lncRNAs were determined using LASSO Cox PH model, followed by constructing a risk scoring model based on these lncRNAs. The risk score was used to divide patients into high- and low-risk groups. Difference in survival between groups was analyzed using Kaplan-Meier survival analysis. IncRNA-mRNA networks were built for the prognostic lncRNAs, followed by pathway enrichment analysis for these networks. Results This study identified eight preserved GBM-related modules, including 188 lncRNAs. Consequently, C20orf166-AS1, LINC00645, LBX2-AS1, LINC00565, LINC00641, and PRRT3-AS1 were identified by LASSO Cox PH model. A risk scoring model based on the lncRNAs was constructed that could divide patients into different risk groups with significantly different survival rates. Prognostic value of this six-lncRNA signature was validated in two independent sets. C20orf166-AS1 was associated with antigen processing and presentation and cell adhesion molecule pathways, involving nine common genes. LBX2-AS1, LINC00641, PRRT3-AS1, and LINC00565 were related to focal adhesion, extracellular matrix receptor interaction, and mitogen-activated protein kinase signaling pathways, which shared 12 common genes. Conclusion This prognostic six-lncRNA signature may improve prognosis prediction of GBM. This study reveals many pathways and genes involved in the mechanisms behind these lncRNAs.
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Affiliation(s)
- Ruqing Liang
- Department of Neurology, Affiliated Hospital of Jining Medical University, Jining, Shandong Province 272000, China
| | - Yaqin Zhi
- Department of Oncology, Jining No 1 People's Hospital, Jining, Shandong Province 272000, China,
| | - Guizhi Zheng
- College of Integrated Chinese and Western Medicine, Jining Medical College, Jining, Shangdong 272067, China
| | - Bin Zhang
- Department of Oncology, Jining No 1 People's Hospital, Jining, Shandong Province 272000, China,
| | - Hua Zhu
- Department of Oncology, Jining No 1 People's Hospital, Jining, Shandong Province 272000, China,
| | - Meng Wang
- Department of Oncology, Jining No 1 People's Hospital, Jining, Shandong Province 272000, China,
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Beaudry K, Langlois MJ, Montagne A, Cagnol S, Carrier JC, Rivard N. Dual-specificity phosphatase 6 deletion protects the colonic epithelium against inflammation and promotes both proliferation and tumorigenesis. J Cell Physiol 2018; 234:6731-6745. [PMID: 30273442 PMCID: PMC6519001 DOI: 10.1002/jcp.27420] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Accepted: 08/21/2018] [Indexed: 12/22/2022]
Abstract
The Ras/mitogen‐activated protein kinase (MAPK) pathway controls fundamental cellular processes such as proliferation, differentiation, and apoptosis. The dual‐specificity phosphatase 6 (DUSP6) regulates cytoplasmic MAPK signaling by dephosphorylating and inactivating extracellular signal‐regulated kinase (ERK1/2) MAPK. To determine the role of DUSP6 in the maintenance of intestinal homeostasis, we characterized the intestinal epithelial phenotype of
Dusp6 knockout (KO) mice under normal, oncogenic, and proinflammatory conditions. Our results show that loss of Dusp6 increased crypt depth and epithelial cell proliferation without altering colonic architecture. Crypt regeneration capacity was also enhanced, as revealed by ex vivo
Dusp6 KO organoid cultures. Additionally, loss of Dusp6 induced goblet cell expansion without affecting enteroendocrine and absorptive cell differentiation. Our data also demonstrate that
Dusp6 KO mice were protected from acute dextran sulfate sodium‐induced colitis, as opposed to wild‐type mice. In addition,
Dusp6 gene deletion markedly enhanced tumor load in
ApcMin/+ mice. Decreased DUSP6 expression by RNA interference in HT29 colorectal cancer cells enhanced ERK1/2 activation levels and promoted both anchorage‐independent growth in soft agar as well as invasion through Matrigel. Finally,
DUSP6 mRNA expression in human colorectal tumors was decreased in advanced stage tumors compared with paired normal tissues. These results demonstrate that DUSP6 phosphatase, by controlling ERK1/2 activation, regulates colonic inflammatory responses, and protects the intestinal epithelium against oncogenic stress.
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Affiliation(s)
- Katia Beaudry
- Department of Anatomy and Cell Biology, Faculty of Medicine and Health Sciences, Université de Sherbrooke, Sherbrooke, Quebec, Canada
| | - Marie-Josée Langlois
- Department of Anatomy and Cell Biology, Faculty of Medicine and Health Sciences, Université de Sherbrooke, Sherbrooke, Quebec, Canada
| | - Amélie Montagne
- Department of Anatomy and Cell Biology, Faculty of Medicine and Health Sciences, Université de Sherbrooke, Sherbrooke, Quebec, Canada
| | - Sébastien Cagnol
- Department of Anatomy and Cell Biology, Faculty of Medicine and Health Sciences, Université de Sherbrooke, Sherbrooke, Quebec, Canada
| | - Julie C Carrier
- Department of Medicine, Faculty of Medicine and Health Sciences, Université de Sherbrooke, Sherbrooke, Quebec, Canada
| | - Nathalie Rivard
- Department of Anatomy and Cell Biology, Faculty of Medicine and Health Sciences, Université de Sherbrooke, Sherbrooke, Quebec, Canada
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Seternes OM, Kidger AM, Keyse SM. Dual-specificity MAP kinase phosphatases in health and disease. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2018; 1866:124-143. [PMID: 30401534 PMCID: PMC6227380 DOI: 10.1016/j.bbamcr.2018.09.002] [Citation(s) in RCA: 72] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Revised: 08/15/2018] [Accepted: 09/06/2018] [Indexed: 02/07/2023]
Abstract
It is well established that a family of dual-specificity MAP kinase phosphatases (MKPs) play key roles in the regulated dephosphorylation and inactivation of MAP kinase isoforms in mammalian cells and tissues. MKPs provide a mechanism of spatiotemporal feedback control of these key signalling pathways, but can also mediate crosstalk between distinct MAP kinase cascades and facilitate interactions between MAP kinase pathways and other key signalling modules. As our knowledge of the regulation, substrate specificity and catalytic mechanisms of MKPs has matured, more recent work using genetic models has revealed key physiological functions for MKPs and also uncovered potentially important roles in regulating the pathophysiological outcome of signalling with relevance to human diseases. These include cancer, diabetes, inflammatory and neurodegenerative disorders. It is hoped that this understanding will reveal novel therapeutic targets and biomarkers for disease, thus contributing to more effective diagnosis and treatment for these debilitating and often fatal conditions. A comprehensive review of the dual-specificity MAP kinase Phosphatases (MKPs) Focus is on MKPs in the regulation of MAPK signalling in health and disease. Covers roles of MKPs in inflammation, obesity/diabetes, cancer and neurodegeneration
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Affiliation(s)
- Ole-Morten Seternes
- Department of Pharmacy, UiT The Arctic University of Norway, N-9037 Tromsø, Norway.
| | - Andrew M Kidger
- Signalling Programme, The Babraham Institute, Babraham Research Campus, Cambridge CB22 3AT, England, UK.
| | - Stephen M Keyse
- Stress Response Laboratory, Jacqui Wood Cancer Centre, James Arrot Drive, Ninewells Hospital & Medical School, Dundee DD1 9SY, UK.
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Lo Nigro C, Vivenza D, Denaro N, Lattanzio L, Fortunato M, Crook T, Merlano MC. DUSP2 methylation is a candidate biomarker of outcome in head and neck cancer. ANNALS OF TRANSLATIONAL MEDICINE 2018; 6:271. [PMID: 30094257 DOI: 10.21037/atm.2018.06.39] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Background Biomarkers predictive of response to chemoradiotherapy (CRT) regimens for locally advanced head and neck squamous cell carcinoma (LA-HNSCC) are urgently required to identify patients in whom this approach is likely to be effective. TP53 mutations and epidermal growth factor (EGFR) overexpression are common markers of disease. Dual-specificity-phosphatase-2 (DUSP2) has an essential role in cell proliferation, cancer and immune responses. Methods Aberrant DUSP2 methylation was investigated by pyrosequencing in 5 HNSCC cell lines, 112 LA-HNSCC tumours. EGFR was investigated by immunohistochemistry and TP53 was analysed by sequencing. Results We demonstrate methylation-dependent transcriptional silencing of DUSP2 in HNSCC cell lines. In LA-HNSCC patients, aberrant methylation in the DUSP2 CpG island was present in 51/112 cases (45.5%). LA-HNSCC cases with wild-type TP53, overexpression of EGFR and unmethylated DUSP2 had the worst overall survival (P≤0.001). Conclusions DUSP2 methylation, when combined with EGFR and TP53, is a candidate biomarker of clinical outcome in LA-HNSCC treated with CRT.
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Affiliation(s)
- Cristiana Lo Nigro
- Medical Oncology, Department of Oncology, S. Croce & Carle Teaching Hospital, Cuneo, Italy
| | - Daniela Vivenza
- Medical Oncology, Department of Oncology, S. Croce & Carle Teaching Hospital, Cuneo, Italy
| | - Nerina Denaro
- Medical Oncology, Department of Oncology, S. Croce & Carle Teaching Hospital, Cuneo, Italy
| | - Laura Lattanzio
- Medical Oncology, Department of Oncology, S. Croce & Carle Teaching Hospital, Cuneo, Italy
| | - Mirella Fortunato
- Department of Pathology, S. Croce & Carle Teaching Hospital, Cuneo, Italy
| | - Tim Crook
- Department of Oncology, St. Lukes Cancer Centre, Guildford, UK
| | - Marco Carlo Merlano
- Medical Oncology, Department of Oncology, S. Croce & Carle Teaching Hospital, Cuneo, Italy
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Vidak M, Jovcevska I, Samec N, Zottel A, Liovic M, Rozman D, Dzeroski S, Juvan P, Komel R. Meta-Analysis and Experimental Validation Identified FREM2 and SPRY1 as New Glioblastoma Marker Candidates. Int J Mol Sci 2018; 19:ijms19051369. [PMID: 29734672 PMCID: PMC5983642 DOI: 10.3390/ijms19051369] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2018] [Revised: 04/27/2018] [Accepted: 04/28/2018] [Indexed: 11/16/2022] Open
Abstract
Glioblastoma (GB) is the most aggressive brain malignancy. Although some potential glioblastoma biomarkers have already been identified, there is a lack of cell membrane-bound biomarkers capable of distinguishing brain tissue from glioblastoma and/or glioblastoma stem cells (GSC), which are responsible for the rapid post-operative tumor reoccurrence. In order to find new GB/GSC marker candidates that would be cell surface proteins (CSP), we have performed meta-analysis of genome-scale mRNA expression data from three data repositories (GEO, ArrayExpress and GLIOMASdb). The search yielded ten appropriate datasets, and three (GSE4290/GDS1962, GSE23806/GDS3885, and GLIOMASdb) were used for selection of new GB/GSC marker candidates, while the other seven (GSE4412/GDS1975, GSE4412/GDS1976, E-GEOD-52009, E-GEOD-68848, E-GEOD-16011, E-GEOD-4536, and E-GEOD-74571) were used for bioinformatic validation. The selection identified four new CSP-encoding candidate genes—CD276, FREM2, SPRY1, and SLC47A1—and the bioinformatic validation confirmed these findings. A review of the literature revealed that CD276 is not a novel candidate, while SLC47A1 had lower validation test scores than the other new candidates and was therefore not considered for experimental validation. This validation revealed that the expression of FREM2—but not SPRY1—is higher in glioblastoma cell lines when compared to non-malignant astrocytes. In addition, FREM2 gene and protein expression levels are higher in GB stem-like cell lines than in conventional glioblastoma cell lines. FREM2 is thus proposed as a novel GB biomarker and a putative biomarker of glioblastoma stem cells. Both FREM2 and SPRY1 are expressed on the surface of the GB cells, while SPRY1 alone was found overexpressed in the cytosol of non-malignant astrocytes.
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Affiliation(s)
- Marko Vidak
- Faculty of Medicine, Medical Centre for Molecular Biology, University of Ljubljana, Ljubljana SI-1000, Slovenia.
| | - Ivana Jovcevska
- Faculty of Medicine, Medical Centre for Molecular Biology, University of Ljubljana, Ljubljana SI-1000, Slovenia.
| | - Neja Samec
- Faculty of Medicine, Medical Centre for Molecular Biology, University of Ljubljana, Ljubljana SI-1000, Slovenia.
| | - Alja Zottel
- Faculty of Medicine, Medical Centre for Molecular Biology, University of Ljubljana, Ljubljana SI-1000, Slovenia.
| | - Mirjana Liovic
- Faculty of Medicine, Medical Centre for Molecular Biology, University of Ljubljana, Ljubljana SI-1000, Slovenia.
| | - Damjana Rozman
- Faculty of Medicine, Centre for Functional Genomics and Bio-Chips, University of Ljubljana, Ljubljana SI-1000, Slovenia.
| | - Saso Dzeroski
- Department of Knowledge Technologies, Jozef Stefan Institute, Ljubljana SI-1000, Slovenia.
| | - Peter Juvan
- Faculty of Medicine, Centre for Functional Genomics and Bio-Chips, University of Ljubljana, Ljubljana SI-1000, Slovenia.
| | - Radovan Komel
- Faculty of Medicine, Medical Centre for Molecular Biology, University of Ljubljana, Ljubljana SI-1000, Slovenia.
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Pan D, Kobayashi A, Jiang P, Ferrari de Andrade L, Tay RE, Luoma AM, Tsoucas D, Qiu X, Lim K, Rao P, Long HW, Yuan GC, Doench J, Brown M, Liu XS, Wucherpfennig KW. A major chromatin regulator determines resistance of tumor cells to T cell-mediated killing. Science 2018; 359:770-775. [PMID: 29301958 PMCID: PMC5953516 DOI: 10.1126/science.aao1710] [Citation(s) in RCA: 552] [Impact Index Per Article: 92.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Revised: 10/30/2017] [Accepted: 12/14/2017] [Indexed: 12/21/2022]
Abstract
Many human cancers are resistant to immunotherapy, for reasons that are poorly understood. We used a genome-scale CRISPR-Cas9 screen to identify mechanisms of tumor cell resistance to killing by cytotoxic T cells, the central effectors of antitumor immunity. Inactivation of >100 genes-including Pbrm1, Arid2, and Brd7, which encode components of the PBAF form of the SWI/SNF chromatin remodeling complex-sensitized mouse B16F10 melanoma cells to killing by T cells. Loss of PBAF function increased tumor cell sensitivity to interferon-γ, resulting in enhanced secretion of chemokines that recruit effector T cells. Treatment-resistant tumors became responsive to immunotherapy when Pbrm1 was inactivated. In many human cancers, expression of PBRM1 and ARID2 inversely correlated with expression of T cell cytotoxicity genes, and Pbrm1-deficient murine melanomas were more strongly infiltrated by cytotoxic T cells.
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Affiliation(s)
- Deng Pan
- Department of Cancer Immunology and Virology, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Aya Kobayashi
- Department of Cancer Immunology and Virology, Dana-Farber Cancer Institute, Boston, MA 02215, USA
- Astellas Pharma, Tokyo 103-8411, Japan
| | - Peng Jiang
- Department of Biostatistics and Computational Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Lucas Ferrari de Andrade
- Department of Cancer Immunology and Virology, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Rong En Tay
- Department of Cancer Immunology and Virology, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Adrienne M Luoma
- Department of Cancer Immunology and Virology, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Daphne Tsoucas
- Department of Biostatistics and Computational Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Xintao Qiu
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Klothilda Lim
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Prakash Rao
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Henry W Long
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Guo-Cheng Yuan
- Department of Biostatistics and Computational Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - John Doench
- Genetic Perturbation Platform, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | - Myles Brown
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | | | - Kai W Wucherpfennig
- Department of Cancer Immunology and Virology, Dana-Farber Cancer Institute, Boston, MA 02215, USA.
- Department of Microbiology and Immunobiology, Harvard Medical School, Boston, MA 02115, USA
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41
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Panels of tumor-derived RNA markers in peripheral blood of patients with non-small cell lung cancer: their dependence on age, gender and clinical stages. Oncotarget 2018; 7:50582-50595. [PMID: 27418131 PMCID: PMC5226605 DOI: 10.18632/oncotarget.10558] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2015] [Accepted: 06/29/2016] [Indexed: 12/21/2022] Open
Abstract
Peripheral blood mononuclear cell (PBMC)-derived gene signatures were investigated for their potential use in the early detection of non-small cell lung cancer (NSCLC). In our study, 187 patients with NSCLC and 310 age- and gender-matched controls, and an independent set containing 29 patients for validation were included. Eight significant NSCLC-associated genes were identified, including DUSP6, EIF2S3, GRB2, MDM2, NF1, POLDIP2, RNF4, and WEE1. The logistic model containing these significant markers was able to distinguish subjects with NSCLC from controls with an excellent performance, 80.7% sensitivity, 90.6% specificity, and an area under the receiver operating characteristic curve (AUC) of 0.924. Repeated random sub-sampling for 100 times was used to validate the performance of classification training models with an average AUC of 0.92. Additional cross-validation using the independent set resulted in the sensitivity 75.86%. Furthermore, six age/gender-dependent genes: CPEB4, EIF2S3, GRB2, MCM4, RNF4, and STAT2 were identified using age and gender stratification approach. STAT2 and WEE1 were explored as stage-dependent using stage-stratified subpopulation. We conclude that these logistic models using different signatures for total and stratified samples are potential complementary tools for assessing the risk of NSCLC.
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Queipo MJ, Gil-Redondo JC, Morente V, Ortega F, Miras-Portugal MT, Delicado EG, Pérez-Sen R. P2X7 Nucleotide and EGF Receptors Exert Dual Modulation of the Dual-Specificity Phosphatase 6 (MKP-3) in Granule Neurons and Astrocytes, Contributing to Negative Feedback on ERK Signaling. Front Mol Neurosci 2018; 10:448. [PMID: 29375309 PMCID: PMC5767727 DOI: 10.3389/fnmol.2017.00448] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Accepted: 12/22/2017] [Indexed: 01/08/2023] Open
Abstract
Extracellular signal-regulated kinases 1 and 2 (ERK1/2) play a central role in the intracellular signaling of P2X7 nucleotide receptors in neurons and glial cells. Fine spatio-temporal tuning of mitogen-activated protein (MAP) kinases is essential to regulate their biological activity. MAP kinase phosphatases (MKPs) are dual specificity protein phosphatases (DUSPs) that dephosphorylate phosphothreonine and phosphotyrosine residues in MAP kinases. This study focuses on how DUSP, DUSP6/MKP3, a phosphatase specific for ERK1/2 is regulated by the P2X7 nucleotide receptor in cerebellar granule neurons and astrocytes. Stimulation with the specific P2X7 agonist, BzATP, or epidermal growth factor (EGF) (positive control for ERK activation) regulates the levels of DUSP6 in a time dependent manner. Both agonists promote a decline in DUSP6 protein, reaching minimal levels after 30 min yet recovering to basal levels after 1 h. The initial loss of protein occurs through proteasomal degradation, as confirmed in experiments with the proteasome inhibitor, MG-132. Studies carried out with Actinomycin D demonstrated that the enhanced transcription of the Dusp6 gene is responsible for recovering the DUSP6 protein levels. Interestingly, ERK1/2 proteins are involved in the biphasic regulation of the protein phosphatase, being required for both the degradation and the recovery phase. We show that direct Ser197 phosphorylation of DUSP6 by ERK1/2 proteins could be part of the mechanism regulating their cytosolic levels, at least in glial cells. Thus, the ERK1/2 activated by P2X7 receptors exerts positive feedback on these kinase’s own activity, promoting the degradation of one of their major inactivators in the cytosolic compartment, DUSP6, both in granule neurons and astrocytes. This feedback loop seems to function as a common universal mechanism to regulate ERK signaling in neural and non-neural cells.
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Affiliation(s)
- Mª José Queipo
- Departamento de Bioquímica y Biología Molecular IV, Facultad de Veterinaria, Instituto Universitario de Investigación en Neuroquímica, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos, Universidad Complutense Madrid, Madrid, Spain
| | - Juan C Gil-Redondo
- Departamento de Bioquímica y Biología Molecular IV, Facultad de Veterinaria, Instituto Universitario de Investigación en Neuroquímica, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos, Universidad Complutense Madrid, Madrid, Spain
| | - Verónica Morente
- Departamento de Bioquímica y Biología Molecular IV, Facultad de Veterinaria, Instituto Universitario de Investigación en Neuroquímica, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos, Universidad Complutense Madrid, Madrid, Spain
| | - Felipe Ortega
- Departamento de Bioquímica y Biología Molecular IV, Facultad de Veterinaria, Instituto Universitario de Investigación en Neuroquímica, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos, Universidad Complutense Madrid, Madrid, Spain
| | - Mª Teresa Miras-Portugal
- Departamento de Bioquímica y Biología Molecular IV, Facultad de Veterinaria, Instituto Universitario de Investigación en Neuroquímica, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos, Universidad Complutense Madrid, Madrid, Spain
| | - Esmerilda G Delicado
- Departamento de Bioquímica y Biología Molecular IV, Facultad de Veterinaria, Instituto Universitario de Investigación en Neuroquímica, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos, Universidad Complutense Madrid, Madrid, Spain
| | - Raquel Pérez-Sen
- Departamento de Bioquímica y Biología Molecular IV, Facultad de Veterinaria, Instituto Universitario de Investigación en Neuroquímica, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos, Universidad Complutense Madrid, Madrid, Spain
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43
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Bohn JA, Van Etten JL, Schagat TL, Bowman BM, McEachin RC, Freddolino PL, Goldstrohm AC. Identification of diverse target RNAs that are functionally regulated by human Pumilio proteins. Nucleic Acids Res 2018; 46:362-386. [PMID: 29165587 PMCID: PMC5758885 DOI: 10.1093/nar/gkx1120] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Revised: 10/21/2017] [Accepted: 10/25/2017] [Indexed: 12/20/2022] Open
Abstract
Human Pumilio proteins, PUM1 and PUM2, are sequence specific RNA-binding proteins that regulate protein expression. We used RNA-seq, rigorous statistical testing and an experimentally derived fold change cut-off to identify nearly 1000 target RNAs-including mRNAs and non-coding RNAs-that are functionally regulated by PUMs. Bioinformatic analysis defined a PUM Response Element (PRE) that was significantly enriched in transcripts that increased in abundance and matches the PUM RNA-binding consensus. We created a computational model that incorporates PRE position and frequency within an RNA relative to the magnitude of regulation. The model reveals significant correlation of PUM regulation with PREs in 3' untranslated regions (UTRs), coding sequences and non-coding RNAs, but not 5' UTRs. To define direct, high confidence PUM targets, we cross-referenced PUM-regulated RNAs with all PRE-containing RNAs and experimentally defined PUM-bound RNAs. The results define nearly 300 direct targets that include both PUM-repressed and, surprisingly, PUM-activated target RNAs. Annotation enrichment analysis reveal that PUMs regulate genes from multiple signaling pathways and developmental and neurological processes. Moreover, PUM target mRNAs impinge on human disease genes linked to cancer, neurological disorders and cardiovascular disease. These discoveries pave the way for determining how the PUM-dependent regulatory network impacts biological functions and disease states.
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Affiliation(s)
- Jennifer A Bohn
- Department of Biological Chemistry, University of Michigan, Ann Arbor, MI 48109, USA
| | - Jamie L Van Etten
- Department of Biological Chemistry, University of Michigan, Ann Arbor, MI 48109, USA
| | - Trista L Schagat
- Department of Biological Chemistry, University of Michigan, Ann Arbor, MI 48109, USA
- Promega Corporation, Madison, WI 53711, USA
| | - Brittany M Bowman
- Department of Biological Chemistry, University of Michigan, Ann Arbor, MI 48109, USA
| | - Richard C McEachin
- Department of Computational Medicine and Bioinformatics, University of Michigan, Ann Arbor, MI 48109, USA
| | - Peter L Freddolino
- Department of Biological Chemistry, University of Michigan, Ann Arbor, MI 48109, USA
- Department of Computational Medicine and Bioinformatics, University of Michigan, Ann Arbor, MI 48109, USA
| | - Aaron C Goldstrohm
- Department of Biological Chemistry, University of Michigan, Ann Arbor, MI 48109, USA
- Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, Minneapolis, MN 55455, USA
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44
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Ahmad MK, Abdollah NA, Shafie NH, Yusof NM, Razak SRA. Dual-specificity phosphatase 6 (DUSP6): a review of its molecular characteristics and clinical relevance in cancer. Cancer Biol Med 2018; 15:14-28. [PMID: 29545965 PMCID: PMC5842331 DOI: 10.20892/j.issn.2095-3941.2017.0107] [Citation(s) in RCA: 72] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Mitogen-activated protein kinases (MAPKs) are the main regulators of cellular proliferation, growth, and survival in physiological or pathological conditions. Aberrant MAPK signaling plays a pivotal role in carcinogenesis, which leads to development and progression of human cancer. Dual-specificity phosphatase 6 (DUSP6), a member of the MAPK phosphatase family, interacts with specifically targeted extracellular signal-regulated kinase 1/2 via negative feedback regulation in the MAPK pathway of mammalian cells. This phosphatase functions in a dual manner, pro-oncogenic or tumor-suppressive, depending on the type of cancer. To date, the tumor-suppressive role of DUSP6 has been demonstrated in pancreatic cancer, non-small cell lung cancer, esophageal squamous cell and nasopharyngeal carcinoma, and ovarian cancer. Its pro-oncogenic role has been observed in human glioblastoma, thyroid carcinoma, breast cancer, and acute myeloid carcinoma. Both roles of DUSP6 have been documented in malignant melanoma depending on the histological subtype of the cancer. Loss- or gain-of-function effects of DUSP6 in these cancers highlights the significance of this phosphatase in carcinogenesis. Development of methods that use the DUSP6 gene as a therapeutic target for cancer treatment or as a prognostic factor for diagnosis and evaluation of cancer treatment outcome has great potential. This review focuses on molecular characteristics of the DUSP6 gene and its role in cancers in the purview of development, progression, and cancer treatment outcome.
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Affiliation(s)
- Muhammad Khairi Ahmad
- Oncological and Radiological Sciences Cluster, Advanced Medical and Dental Institute, Universiti Sains Malaysia, Kepala Batas, Pulau Pinang 13200, Malaysia
| | - Nur Ainina Abdollah
- Oncological and Radiological Sciences Cluster, Advanced Medical and Dental Institute, Universiti Sains Malaysia, Kepala Batas, Pulau Pinang 13200, Malaysia
| | - Nurul Husna Shafie
- Oncological and Radiological Sciences Cluster, Advanced Medical and Dental Institute, Universiti Sains Malaysia, Kepala Batas, Pulau Pinang 13200, Malaysia
| | - Narazah Mohd Yusof
- Oncological and Radiological Sciences Cluster, Advanced Medical and Dental Institute, Universiti Sains Malaysia, Kepala Batas, Pulau Pinang 13200, Malaysia
| | - Siti Razila Abdul Razak
- Oncological and Radiological Sciences Cluster, Advanced Medical and Dental Institute, Universiti Sains Malaysia, Kepala Batas, Pulau Pinang 13200, Malaysia
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45
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Wu QN, Liao YF, Lu YX, Wang Y, Lu JH, Zeng ZL, Huang QT, Sheng H, Yun JP, Xie D, Ju HQ, Xu RH. Pharmacological inhibition of DUSP6 suppresses gastric cancer growth and metastasis and overcomes cisplatin resistance. Cancer Lett 2017; 412:243-255. [PMID: 29050982 DOI: 10.1016/j.canlet.2017.10.007] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2017] [Revised: 09/29/2017] [Accepted: 10/09/2017] [Indexed: 01/08/2023]
Abstract
Gastric cancer (GC) is the second cause of cancer-related death. Cisplatin (CDDP) is widely used as the standard GC treatment, but relapse and metastasis are common because of intrinsic or acquired drug resistance. The mitogen-activated protein kinase phosphatases (MAPK)-extracellular signal regulated kinases (ERK) pathway contributes to GC progression and drug resistance, but targeting the MAPK-ERK pathway is challenging in GC therapy. Here, we demonstrated that dual-specificity phosphatases 6 (DUSP6) was overexpressed in GC and predicted poor overall survival and progression-free survival. Knockdown DUSP6 inhibited GC proliferation, migration, invasion and induced apoptosis. (E/Z)-BCI hydrochloride (BCI), a DUSP6 small molecule inhibitor, increased the activity of ERK but interestingly decreased the expression of ERK response genes in BGC823, SGC7901 and CDDP-resistant SGC7901/DDP cells. BCI also caused cell death through the DNA damage response (DDR) pathway. Moreover, BCI inhibited cell proliferation, migration and invasion in a receptor-independent manner and enhanced CDDP cytotoxicity at pharmacological concentrations in the GC cells. In vivo experiments further showed that BCI enhances the antitumor effects of CDDP in cell-based xenografts and PDX models. In summary, our findings indicated that disruption of DUSP6 by BCI enhanced CDDP-induced cell death and apoptosis in GC may partly through ERK and DDR pathways. Thus, this study suggests that DUSP6 is a potential prognostic biomarker and a promising target for GC therapy.
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Affiliation(s)
- Qi-Nian Wu
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, 510060, China
| | - Yi-Fu Liao
- Guangdong General Hospital, Guangdong Neuroscience Institute, Guangdong Academy of Medical Sciences, Department of Neurology, Guangzhou, 510080, China
| | - Yun-Xin Lu
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, 510060, China
| | - Yun Wang
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, 510060, China
| | - Jia-Huan Lu
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, 510060, China
| | - Zhao-Lei Zeng
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, 510060, China
| | - Qi-Tao Huang
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, 510060, China
| | - Hui Sheng
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, 510060, China
| | - Jing-Ping Yun
- Sun Yat-sen University Cancer Center, Department of Pathology, Guangzhou, 510060, China
| | - Dan Xie
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, 510060, China
| | - Huai-Qiang Ju
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, 510060, China.
| | - Rui-Hua Xu
- 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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Wittig-Blaich S, Wittig R, Schmidt S, Lyer S, Bewerunge-Hudler M, Gronert-Sum S, Strobel-Freidekind O, Müller C, List M, Jaskot A, Christiansen H, Hafner M, Schadendorf D, Block I, Mollenhauer J. Systematic screening of isogenic cancer cells identifies DUSP6 as context-specific synthetic lethal target in melanoma. Oncotarget 2017; 8:23760-23774. [PMID: 28423600 PMCID: PMC5410342 DOI: 10.18632/oncotarget.15863] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2016] [Accepted: 02/06/2017] [Indexed: 12/19/2022] Open
Abstract
Next-generation sequencing has dramatically increased genome-wide profiling options and conceptually initiates the possibility for personalized cancer therapy. State-of-the-art sequencing studies yield large candidate gene sets comprising dozens or hundreds of mutated genes. However, few technologies are available for the systematic downstream evaluation of these results to identify novel starting points of future cancer therapies. We improved and extended a site-specific recombination-based system for systematic analysis of the individual functions of a large number of candidate genes. This was facilitated by a novel system for the construction of isogenic constitutive and inducible gain- and loss-of-function cell lines. Additionally, we demonstrate the construction of isogenic cell lines with combinations of the traits for advanced functional in vitro analyses. In a proof-of-concept experiment, a library of 108 isogenic melanoma cell lines was constructed and 8 genes were identified that significantly reduced viability in a discovery screen and in an independent validation screen. Here, we demonstrate the broad applicability of this recombination-based method and we proved its potential to identify new drug targets via the identification of the tumor suppressor DUSP6 as potential synthetic lethal target in melanoma cell lines with BRAF V600E mutations and high DUSP6 expression.
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Affiliation(s)
- Stephanie Wittig-Blaich
- Former Affiliation: Department of Molecular Genome Analysis, German Cancer Research Center (DKFZ), 69118 Heidelberg, Germany.,Institute for Comparative Molecular Endocrinology, Ulm University, 89081 Ulm, Germany
| | - Rainer Wittig
- Former Affiliation: Department of Molecular Genome Analysis, German Cancer Research Center (DKFZ), 69118 Heidelberg, Germany.,Institute for Laser Technologies in Medicine and Metrology, Ulm University, 89081 Ulm, Germany
| | - Steffen Schmidt
- Former Affiliation: Lundbeckfonden Center of Excellence NanoCAN, Institute of Molecular Medicine, University of Southern Denmark, 5000 Odense, Denmark.,Former Affiliation: Molecular Oncology, Institute of Molecular Medicine, University of Southern Denmark, 5000 Odense, Denmark
| | - Stefan Lyer
- Former Affiliation: Department of Molecular Genome Analysis, German Cancer Research Center (DKFZ), 69118 Heidelberg, Germany.,Department of Otorhinolaryngology, Section for Experimental Oncology and Nanomedicine (SEON), University Hospital Erlangen, 91054 Erlangen, Germany
| | - Melanie Bewerunge-Hudler
- Former Affiliation: Department of Molecular Genome Analysis, German Cancer Research Center (DKFZ), 69118 Heidelberg, Germany.,Genomics and Proteomics Core Facility, German Cancer Research Center (DKFZ), 69118 Heidelberg, Germany
| | - Sabine Gronert-Sum
- Former Affiliation: Department of Molecular Genome Analysis, German Cancer Research Center (DKFZ), 69118 Heidelberg, Germany
| | - Olga Strobel-Freidekind
- Former Affiliation: Department of Molecular Genome Analysis, German Cancer Research Center (DKFZ), 69118 Heidelberg, Germany
| | - Carolin Müller
- Former Affiliation: Lundbeckfonden Center of Excellence NanoCAN, Institute of Molecular Medicine, University of Southern Denmark, 5000 Odense, Denmark.,Former Affiliation: Molecular Oncology, Institute of Molecular Medicine, University of Southern Denmark, 5000 Odense, Denmark
| | - Markus List
- Former Affiliation: Lundbeckfonden Center of Excellence NanoCAN, Institute of Molecular Medicine, University of Southern Denmark, 5000 Odense, Denmark.,Former Affiliation: Molecular Oncology, Institute of Molecular Medicine, University of Southern Denmark, 5000 Odense, Denmark
| | - Aleksandra Jaskot
- Former Affiliation: Lundbeckfonden Center of Excellence NanoCAN, Institute of Molecular Medicine, University of Southern Denmark, 5000 Odense, Denmark.,Former Affiliation: Molecular Oncology, Institute of Molecular Medicine, University of Southern Denmark, 5000 Odense, Denmark
| | - Helle Christiansen
- Former Affiliation: Lundbeckfonden Center of Excellence NanoCAN, Institute of Molecular Medicine, University of Southern Denmark, 5000 Odense, Denmark.,Former Affiliation: Molecular Oncology, Institute of Molecular Medicine, University of Southern Denmark, 5000 Odense, Denmark
| | - Mathias Hafner
- Department of Biotechnology, Mannheim University of Applied Sciences, 68163 Mannheim, Germany
| | - Dirk Schadendorf
- Department of Dermatology, University Hospital Duisburg-Essen, 45147 Essen, Germany and German Cancer Consortium, 69118 Heidelberg, Germany
| | - Ines Block
- Department of Clinical Genetics, Odense University Hospital, 5000 Odense, Denmark.,Lundbeckfonden Center of Excellence NanoCAN, Institute of Molecular Medicine, University of Southern Denmark, 5000 Odense, Denmark
| | - Jan Mollenhauer
- Lundbeckfonden Center of Excellence NanoCAN, Institute of Molecular Medicine, University of Southern Denmark, 5000 Odense, Denmark.,Molecular Oncology, Institute of Molecular Medicine, University of Southern Denmark, 5000 Odense, Denmark
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Pfuhlmann K, Pfluger PT, Schriever SC, Müller TD, Tschöp MH, Stemmer K. Dual specificity phosphatase 6 deficiency is associated with impaired systemic glucose tolerance and reversible weight retardation in mice. PLoS One 2017; 12:e0183488. [PMID: 28873424 PMCID: PMC5584967 DOI: 10.1371/journal.pone.0183488] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Accepted: 08/03/2017] [Indexed: 01/09/2023] Open
Abstract
Here, we aimed to investigate the potential role of DUSP6, a dual specificity phosphatase, that specifically inactivates extracellular signal-regulated kinase (ERK), for the regulation of body weight and glucose homeostasis. We further assessed whether metabolic challenges affect Dusp6 expression in selected brain areas or white adipose tissue. Hypothalamic Dusp6 mRNA levels remained unchanged in chow-fed lean vs. high fat diet (HFD) fed obese C57Bl/6J mice, and in C57Bl/6J mice undergoing prolonged fasting or refeeding with fat free diet (FFD) or HFD. Similarly, Dusp6 expression levels were unchanged in selected brain regions of Lepob mice treated with 1 mg/kg of leptin for 6 days, compared to pair-fed or saline-treated Lepob controls. Dusp6 expression levels remained unaltered in vitro in primary adipocytes undergoing differentiation, but were increased in eWAT of HFD-fed obese C57Bl/6J mice, compared to chow-fed lean controls. Global chow-fed DUSP6 KO mice displayed reduced body weight and lean mass and slightly increased fat mass at a young age, which is indicative for early-age weight retardation. Subsequent exposure to HFD led to a significant increase in lean mass and body weight in DUSP6 deficient mice, compared to WT controls. Nevertheless, after 26 weeks of high-fat diet exposure, we observed comparable body weight, fat and lean mass in DUSP6 WT and KO mice, suggesting overall normal susceptibility to develop obesity. In line with the increased weight gain to compensate for early-age weight retardation, HFD-fed DUSP6 KO displayed increased expression levels of anabolic genes involved in lipid and cholesterol metabolism in the epididymal white adipose tissue (eWAT), compared to WT controls. Glucose tolerance was perturbed in both chow-fed lean or HFD-fed obese DUSP6 KO, compared to their respective WT controls. Overall, our data indicate that DUSP6 deficiency has limited impact on the regulation of energy metabolism, but impairs systemic glucose tolerance. Our data are in conflict to earlier reports that propose protection from diet-induced obesity and glucose intolerance in DUSP6 deficient mice. Reasons for the discrepancies remain elusive, but may entail differential genetic backgrounds, environmental factors such as the type and source of HFD, or alterations in the gut microbiome between facilities.
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Affiliation(s)
- Katrin Pfuhlmann
- Research Unit NeuroBiology of Diabetes, Helmholtz Diabetes Center, Helmholtz Zentrum München, Neuherberg, Germany
- Institute for Diabetes and Obesity, Helmholtz Diabetes Center, Helmholtz Zentrum München, Neuherberg, Germany
- German Center for Diabetes Research (DZD), Neuherberg, Germany
- Division of Metabolic Diseases, Technische Universität München, Munich, Germany
| | - Paul T. Pfluger
- Research Unit NeuroBiology of Diabetes, Helmholtz Diabetes Center, Helmholtz Zentrum München, Neuherberg, Germany
- Institute for Diabetes and Obesity, Helmholtz Diabetes Center, Helmholtz Zentrum München, Neuherberg, Germany
- German Center for Diabetes Research (DZD), Neuherberg, Germany
| | - Sonja C. Schriever
- Research Unit NeuroBiology of Diabetes, Helmholtz Diabetes Center, Helmholtz Zentrum München, Neuherberg, Germany
- Institute for Diabetes and Obesity, Helmholtz Diabetes Center, Helmholtz Zentrum München, Neuherberg, Germany
- German Center for Diabetes Research (DZD), Neuherberg, Germany
| | - Timo D. Müller
- Institute for Diabetes and Obesity, Helmholtz Diabetes Center, Helmholtz Zentrum München, Neuherberg, Germany
- German Center for Diabetes Research (DZD), Neuherberg, Germany
| | - Matthias H. Tschöp
- Institute for Diabetes and Obesity, Helmholtz Diabetes Center, Helmholtz Zentrum München, Neuherberg, Germany
- German Center for Diabetes Research (DZD), Neuherberg, Germany
- Division of Metabolic Diseases, Technische Universität München, Munich, Germany
| | - Kerstin Stemmer
- Institute for Diabetes and Obesity, Helmholtz Diabetes Center, Helmholtz Zentrum München, Neuherberg, Germany
- German Center for Diabetes Research (DZD), Neuherberg, Germany
- * E-mail:
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Mills BN, Albert GP, Halterman MW. Expression Profiling of the MAP Kinase Phosphatase Family Reveals a Role for DUSP1 in the Glioblastoma Stem Cell Niche. CANCER MICROENVIRONMENT 2017; 10:57-68. [PMID: 28822081 DOI: 10.1007/s12307-017-0197-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2017] [Accepted: 08/09/2017] [Indexed: 12/19/2022]
Abstract
The dual specificity phosphatases (DUSPs) constitute a family of stress-induced enzymes that provide feedback inhibition on mitogen-activated protein kinases (MAPKs) critical in key aspects of oncogenic signaling. While described in other tumor types, the landscape of DUSP mRNA expression in glioblastoma (GB) remains largely unexplored. Interrogation of the REpository for Molecular BRAin Neoplasia DaTa (REMBRANDT) revealed induction (DUSP4, DUSP6), repression (DUSP2, DUSP7-9), or mixed (DUSP1, DUSP5, DUSP10, DUSP15) DUSP transcription of select DUSPs in bulk tumor specimens. To resolve features specific to the tumor microenvironment, we searched the Ivy Glioblastoma Atlas Project (Ivy GAP) repository, which highlight DUSP1, DUSP5, and DUSP6 as the predominant family members induced within pseudopalisading and perinecrotic regions. The inducibility of DUSP1 in response to hypoxia, dexamethasone, or the chemotherapeutic agent camptothecin was confirmed in GB cell lines and tumor-derived stem cells (TSCs). Moreover, we show that loss of DUSP1 expression is a characteristic of TSCs and correlates with expression of tumor stem cell markers in situ (ABCG2, PROM1, L1CAM, NANOG, SOX2). This work reveals a dynamic pattern of DUSP expression within the tumor microenvironment that reflects the cumulative effects of factors including regional ischemia, chemotherapeutic exposure among others. Moreover, our observation regarding DUSP1 dysregulation within the stem cell niche argue for its importance in the survival and proliferation of this therapeutically resistant population.
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Affiliation(s)
- Bradley N Mills
- Department of Pathology and Laboratory Medicine, University of Rochester Medical Center, Rochester, NY, 14642, USA.,Center for Neurotherapeutics Discovery, University of Rochester Medical Center, 601 Elmwood Avenue, Box 645, Rochester, NY, 14642, USA
| | - George P Albert
- Center for Neurotherapeutics Discovery, University of Rochester Medical Center, 601 Elmwood Avenue, Box 645, Rochester, NY, 14642, USA
| | - Marc W Halterman
- Center for Neurotherapeutics Discovery, University of Rochester Medical Center, 601 Elmwood Avenue, Box 645, Rochester, NY, 14642, USA. .,Department of Neurology, University of Rochester Medical Center, Rochester, NY, 14642, USA. .,Department of Neuroscience, University of Rochester Medical Center, Rochester, NY, 14642, USA.
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Phosphatases and solid tumors: focus on glioblastoma initiation, progression and recurrences. Biochem J 2017; 474:2903-2924. [PMID: 28801478 DOI: 10.1042/bcj20170112] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2017] [Revised: 06/21/2017] [Accepted: 06/23/2017] [Indexed: 12/15/2022]
Abstract
Phosphatases and cancer have been related for many years now, as these enzymes regulate key cellular functions, including cell survival, migration, differentiation and proliferation. Dysfunctions or mutations affecting these enzymes have been demonstrated to be key factors for oncogenesis. The aim of this review is to shed light on the role of four different phosphatases (PTEN, PP2A, CDC25 and DUSP1) in five different solid tumors (breast cancer, lung cancer, pancreatic cancer, prostate cancer and ovarian cancer), in order to better understand the most frequent and aggressive primary cancer of the central nervous system, glioblastoma.
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Abstract
MicroRNAs (miRNAs) are small non-coding RNA comprising approximately 19-25 nucleotides. miRNAs can act as tumour suppressors or oncogenes, and aberrant expression of miRNAs has been reported in several human cancers and has been associated with cancer initiation and progression. Recent evidence suggests that miRNAs play a major role in thyroid carcinogenesis. In this review, we summarize the role of miRNAs in thyroid cancer and describe the oncogenic or tumour suppressor function of miRNAs as well as their clinical utility as prognostic or diagnostic markers in thyroid cancer.
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Affiliation(s)
- Myriem Boufraqech
- Endocrine Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Joanna Klubo-Gwiezdzinska
- Metabolic Disease Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Electron Kebebew
- Endocrine Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA.
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