1
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Hussein R, Abou-Shanab AM, Badr E. A multi-omics approach for biomarker discovery in neuroblastoma: a network-based framework. NPJ Syst Biol Appl 2024; 10:52. [PMID: 38760476 PMCID: PMC11101461 DOI: 10.1038/s41540-024-00371-3] [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: 11/09/2023] [Accepted: 04/16/2024] [Indexed: 05/19/2024] Open
Abstract
Neuroblastoma (NB) is one of the leading causes of cancer-associated death in children. MYCN amplification is a prominent genetic marker for NB, and its targeting to halt NB progression is difficult to achieve. Therefore, an in-depth understanding of the molecular interactome of NB is needed to improve treatment outcomes. Analysis of NB multi-omics unravels valuable insight into the interplay between MYCN transcriptional and miRNA post-transcriptional modulation. Moreover, it aids in the identification of various miRNAs that participate in NB development and progression. This study proposes an integrated computational framework with three levels of high-throughput NB data (mRNA-seq, miRNA-seq, and methylation array). Similarity Network Fusion (SNF) and ranked SNF methods were utilized to identify essential genes and miRNAs. The specified genes included both miRNA-target genes and transcription factors (TFs). The interactions between TFs and miRNAs and between miRNAs and their target genes were retrieved where a regulatory network was developed. Finally, an interaction network-based analysis was performed to identify candidate biomarkers. The candidate biomarkers were further analyzed for their potential use in prognosis and diagnosis. The candidate biomarkers included three TFs and seven miRNAs. Four biomarkers have been previously studied and tested in NB, while the remaining identified biomarkers have known roles in other types of cancer. Although the specific molecular role is yet to be addressed, most identified biomarkers possess evidence of involvement in NB tumorigenesis. Analyzing cellular interactome to identify potential biomarkers is a promising approach that can contribute to optimizing efficient therapeutic regimens to target NB vulnerabilities.
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Affiliation(s)
- Rahma Hussein
- Biomedical Sciences Program, University of Science and Technology, Zewail City of Science and Technology, Giza, 12578, Egypt
| | - Ahmed M Abou-Shanab
- Biomedical Sciences Program, University of Science and Technology, Zewail City of Science and Technology, Giza, 12578, Egypt
| | - Eman Badr
- Biomedical Sciences Program, University of Science and Technology, Zewail City of Science and Technology, Giza, 12578, Egypt.
- Faculty of Computers and Artificial Intelligence, Cairo University, Giza, 12613, Egypt.
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2
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Bhavsar SP. Metastasis in neuroblastoma: the MYCN question. Front Oncol 2023; 13:1196861. [PMID: 37274289 PMCID: PMC10233040 DOI: 10.3389/fonc.2023.1196861] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Accepted: 05/08/2023] [Indexed: 06/06/2023] Open
Abstract
Oncogenic drivers like MYCN in neuroblastoma subsets continues to present a significant challenge owing to its strong correlation with high-risk metastatic disease and poor prognosis. However, only a limited number of MYCN-regulatory proteins associated with tumor initiation and progression have been elucidated. In this minireview, I summarize the recent progress in understanding the functional role of MYCN and its regulatory partners in neuroblastoma metastasis.
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3
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A Review of the Regulatory Mechanisms of N-Myc on Cell Cycle. Molecules 2023; 28:molecules28031141. [PMID: 36770809 PMCID: PMC9920120 DOI: 10.3390/molecules28031141] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 12/25/2022] [Accepted: 01/11/2023] [Indexed: 01/26/2023] Open
Abstract
Neuroblastoma has obvious heterogeneity. It is one of the few undifferentiated malignant tumors that can spontaneously degenerate into completely benign tumors. However, for its high-risk type, even with various intensive treatment options, the prognosis is still unsatisfactory. At the same time, a large number of research data show that the abnormal amplification and high-level expression of the MYCN gene are positively correlated with the malignant progression, poor prognosis, and mortality of neuroblastoma. In this context, this article explores the role of the N-Myc, MYCN gene expression product on its target genes related to the cell cycle and reveals its regulatory network in promoting tumor proliferation and malignant progression. We hope it can provide ideas and direction for the research and development of drugs targeting N-Myc and its downstream target genes.
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4
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Horwacik I. The Extracellular Matrix and Neuroblastoma Cell Communication-A Complex Interplay and Its Therapeutic Implications. Cells 2022; 11:cells11193172. [PMID: 36231134 PMCID: PMC9564247 DOI: 10.3390/cells11193172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 10/04/2022] [Accepted: 10/06/2022] [Indexed: 11/16/2022] Open
Abstract
Neuroblastoma (NB) is a pediatric neuroendocrine neoplasm. It arises from the sympatho-adrenal lineage of neural-crest-derived multipotent progenitor cells that fail to differentiate. NB is the most common extracranial tumor in children, and it manifests undisputed heterogeneity. Unsatisfactory outcomes of high-risk (HR) NB patients call for more research to further inter-relate treatment and molecular features of the disease. In this regard, it is well established that in the tumor microenvironment (TME), malignant cells are engaged in complex and dynamic interactions with the extracellular matrix (ECM) and stromal cells. The ECM can be a source of both pro- and anti-tumorigenic factors to regulate tumor cell fate, such as survival, proliferation, and resistance to therapy. Moreover, the ECM composition, organization, and resulting signaling networks are vastly remodeled during tumor progression and metastasis. This review mainly focuses on the molecular mechanisms and effects of interactions of selected ECM components with their receptors on neuroblastoma cells. Additionally, it describes roles of enzymes modifying and degrading ECM in NB. Finally, the article gives examples on how the knowledge is exploited for prognosis and to yield new treatment options for NB patients.
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Affiliation(s)
- Irena Horwacik
- Laboratory of Molecular Genetics and Virology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, 30-387 Kraków, Poland
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5
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Guo H, Zhang W, Wang J, Zhao G, Wang Y, Zhu BM, Dong P, Watari H, Wang B, Li W, Tigyi G, Yue J. Cryptotanshinone inhibits ovarian tumor growth and metastasis by degrading c-Myc and attenuating the FAK signaling pathway. Front Cell Dev Biol 2022; 10:959518. [PMID: 36247016 PMCID: PMC9554091 DOI: 10.3389/fcell.2022.959518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Accepted: 09/08/2022] [Indexed: 11/13/2022] Open
Abstract
Cryptotanshinone (CT), a natural compound derived from Salvia miltiorrhiza Bunge that is also known as the traditional Chinese medicine Danshen, exhibits antitumor activity in various cancers. However, it remains unclear whether CT has a potential therapeutic benefit against ovarian cancers. The aim of this study was to test the efficacy of CT in ovarian cancer cells in vitro and using a xenograft model in NSG mice orthotopically implanted with HEY A8 human ovarian cancer cells and to explore the molecular mechanism(s) underlying CT’s antitumor effects. We found that CT inhibited the proliferation, migration, and invasion of OVCAR3 and HEY A8 cells, while sensitizing the cell responses to the chemotherapy drugs paclitaxel and cisplatin. CT also suppressed ovarian tumor growth and metastasis in immunocompromised mice orthotopically inoculated with HEY A8 cells. Mechanistically, CT degraded the protein encoded by the oncogene c-Myc by promoting its ubiquitination and disrupting the interaction with its partner protein Max. CT also attenuated signaling via the nuclear focal adhesion kinase (FAK) pathway and degraded FAK protein in both cell lines. Knockdown of c-Myc using lentiviral CRISPR/Cas9 nickase resulted in reduction of FAK expression, which phenocopies the effects of CT and the c-Myc/Max inhibitor 10058-F4. Taken together, our studies demonstrate that CT inhibits primary ovarian tumor growth and metastasis by degrading c-Myc and FAK and attenuating the FAK signaling pathway.
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Affiliation(s)
- Huijun Guo
- Department of Pathogen Biology and Immunology, College of Life Science, Jiangxi University of Traditional Chinese Medicine, Nanchang, China
- Department of Pathology and Laboratory Medicine, College of Medicine, The University of Tennessee Health Science Center, Memphis, TN, United States
| | - Wenjing Zhang
- Department of Genetics, Genomics and Informatics, College of Medicine, The University of Tennessee Health Science Center, Memphis, TN, United States
- *Correspondence: Junming Yue, ; Wenjing Zhang, ; Bing-Mei Zhu,
| | - Jiaxing Wang
- Department of Pharmaceutical Sciences, College of Pharmacy, The University of Tennessee Health Science Center, Memphis, TN, United States
| | - Guannan Zhao
- Department of Pathology and Laboratory Medicine, College of Medicine, The University of Tennessee Health Science Center, Memphis, TN, United States
| | - Yaohong Wang
- Department of Pathology, Immunology and Microbiology, Vanderbilt University, Nashville, TN, United States
| | - Bing-Mei Zhu
- Regenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu, China
- *Correspondence: Junming Yue, ; Wenjing Zhang, ; Bing-Mei Zhu,
| | - Peixin Dong
- Department of Obstetrics and Gynecology, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - Hidemichi Watari
- Department of Obstetrics and Gynecology, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - Baojin Wang
- Department of Gynecology and Obstetrics, Third Affiliated Hospital, Zhengzhou University, Zhengzhou, China
| | - Wei Li
- Department of Pharmaceutical Sciences, College of Pharmacy, The University of Tennessee Health Science Center, Memphis, TN, United States
| | - Gabor Tigyi
- Department of Physiology, College of Medicine, The University of Tennessee Health Science Center, Memphis, TN, United States
| | - Junming Yue
- Department of Pathology and Laboratory Medicine, College of Medicine, The University of Tennessee Health Science Center, Memphis, TN, United States
- *Correspondence: Junming Yue, ; Wenjing Zhang, ; Bing-Mei Zhu,
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6
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Lampis S, Raieli S, Montemurro L, Bartolucci D, Amadesi C, Bortolotti S, Angelucci S, Scardovi AL, Nieddu G, Cerisoli L, Paganelli F, Valente S, Fischer M, Martelli AM, Pasquinelli G, Pession A, Hrelia P, Tonelli R. The MYCN inhibitor BGA002 restores the retinoic acid response leading to differentiation or apoptosis by the mTOR block in MYCN-amplified neuroblastoma. J Exp Clin Cancer Res 2022; 41:160. [PMID: 35490242 PMCID: PMC9055702 DOI: 10.1186/s13046-022-02367-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Accepted: 04/18/2022] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Neuroblastoma is a deadly childhood cancer, and MYCN-amplified neuroblastoma (MNA-NB) patients have the worst prognoses and are therapy-resistant. While retinoic acid (RA) is beneficial for some neuroblastoma patients, the cause of RA resistance is unknown. Thus, there remains a need for new therapies to treat neuroblastoma. Here we explored the possibility of combining a MYCN-specific antigene oligonucleotide BGA002 and RA as therapeutic approach to restore sensitivity to RA in NB. METHODS By molecular and cellular biology techniques, we assessed the combined effect of the two compounds in NB cell lines and in a xenograft mouse model MNA-NB. RESULTS We found that MYCN-specific inhibition by BGA002 in combination with RA (BGA002-RA) act synergistically and overcame resistance in NB cell lines. BGA002-RA also reactivated neuron differentiation (or led to apoptosis) and inhibited invasiveness capacity in MNA-NB. Moreover, we found that neuroblastoma had the highest level of mRNA expression of mTOR pathway genes, and that BGA002 led to mTOR pathway inhibition followed by autophagy reactivation in MNA-NB cells, which was strengthened by BGA002-RA. BGA002-RA in vivo treatment also eliminated tumor vascularization in a MNA-NB mouse model and significantly increased survival. CONCLUSION Taken together, MYCN modulation mediates the therapeutic efficacy of RA and the development of RA resistance in MNA-NB. Furthermore, by targeting MYCN, a cancer-specific mTOR pathway inhibition occurs only in MNA-NB, thus avoiding the side effects of targeting mTOR in normal cells. These findings warrant clinical testing of BGA002-RA as a strategy for overcoming RA resistance in MNA-NB.
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Affiliation(s)
| | | | - Luca Montemurro
- Pediatric Unit, S. Orsola IRCCS, University of Bologna, Bologna, Italy
| | | | | | | | | | | | | | | | - Francesca Paganelli
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
- CNR Institute of Molecular Genetics "Luigi Luca Cavalli-Sforza", Unit of Bologna, Bologna, Italy
| | - Sabrina Valente
- Biotechnology and Methods in Laboratory Medicine, Department of Experimental, Diagnostic and Specialty Medicine (DIMES), University of Bologna, Bologna, Italy
| | - Matthias Fischer
- Department of Experimental Pediatric Oncology, University Children's Hospital of Cologne, Medical Faculty, Cologne, Germany; and Center for Molecular Medicine Cologne (CMMC), University of Cologne, Cologne, Germany
| | | | - Gianandrea Pasquinelli
- Biotechnology and Methods in Laboratory Medicine, Department of Experimental, Diagnostic and Specialty Medicine (DIMES), University of Bologna, Bologna, Italy
- Subcellular nephro-vascular diagnostic program, Pathology Unit S. Orsola IRCCS, University of Bologna, Bologna, Italy
| | - Andrea Pession
- Pediatric Unit, IRCCS, Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Patrizia Hrelia
- Department of Pharmacy and Biotechnology, University of Bologna, Bologna, Italy
| | - Roberto Tonelli
- Department of Pharmacy and Biotechnology, University of Bologna, Bologna, Italy.
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7
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Huang Y, Jiang Z, Gao X, Luo P, Jiang X. ARMC Subfamily: Structures, Functions, Evolutions, Interactions, and Diseases. Front Mol Biosci 2021; 8:791597. [PMID: 34912852 PMCID: PMC8666550 DOI: 10.3389/fmolb.2021.791597] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Accepted: 11/15/2021] [Indexed: 12/29/2022] Open
Abstract
Armadillo repeat-containing proteins (ARMCs) are widely distributed in eukaryotes and have important influences on cell adhesion, signal transduction, mitochondrial function regulation, tumorigenesis, and other processes. These proteins share a similar domain consisting of tandem repeats approximately 42 amino acids in length, and this domain constitutes a substantial platform for the binding between ARMCs and other proteins. An ARMC subfamily, including ARMC1∼10, ARMC12, and ARMCX1∼6, has received increasing attention. These proteins may have many terminal regions and play a critical role in various diseases. On the one hand, based on their similar central domain of tandem repeats, this ARMC subfamily may function similarly to other ARMCs. On the other hand, the unique domains on their terminals may cause these proteins to have different functions. Here, we focus on the ARMC subfamily (ARMC1∼10, ARMC12, and ARMCX1∼6), which is relatively conserved in vertebrates and highly conserved in mammals, particularly primates. We review the structures, biological functions, evolutions, interactions, and related diseases of the ARMC subfamily, which involve more than 30 diseases and 40 bypasses, including interactions and relationships between more than 100 proteins and signaling molecules. We look forward to obtaining a clearer understanding of the ARMC subfamily to facilitate further in-depth research and treatment of related diseases.
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Affiliation(s)
- Yutao Huang
- Department of Neurosurgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China.,Institue of Neurosurgery of People's Liberation Army of China (PLA), PLA's Key Laboratory of Critical Care Medicine, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Zijian Jiang
- Department of Hepato-biliary Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Xiangyu Gao
- Department of Neurosurgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China.,State Key Laboratory of Cancer Biology, Fourth Military Medical University, Xi'an, China
| | - Peng Luo
- Department of Neurosurgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China.,Institue of Neurosurgery of People's Liberation Army of China (PLA), PLA's Key Laboratory of Critical Care Medicine, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Xiaofan Jiang
- Department of Neurosurgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China.,Institue of Neurosurgery of People's Liberation Army of China (PLA), PLA's Key Laboratory of Critical Care Medicine, Xijing Hospital, Fourth Military Medical University, Xi'an, China
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8
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MYCN in Neuroblastoma: "Old Wine into New Wineskins". Diseases 2021; 9:diseases9040078. [PMID: 34842635 PMCID: PMC8628738 DOI: 10.3390/diseases9040078] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 10/20/2021] [Accepted: 10/27/2021] [Indexed: 12/12/2022] Open
Abstract
MYCN Proto-Oncogene, BHLH Transcription Factor (MYCN) has been one of the most studied genes in neuroblastoma. It is known for its oncogenetic mechanisms, as well as its role in the prognosis of the disease and it is considered one of the prominent targets for neuroblastoma therapy. In the present work, we attempted to review the literature, on the relation between MYCN and neuroblastoma from all possible mechanistic sites. We have searched the literature for the role of MYCN in neuroblastoma based on the following topics: the references of MYCN in the literature, the gene's anatomy, along with its transcripts, the protein's anatomy, the epigenetic mechanisms regulating MYCN expression and function, as well as MYCN amplification. MYCN plays a significant role in neuroblastoma biology. Its functions and properties range from the forming of G-quadraplexes, to the interaction with miRNAs, as well as the regulation of gene methylation and histone acetylation and deacetylation. Although MYCN is one of the most primary genes studied in neuroblastoma, there is still a lot to be learned. Our knowledge on the exact mechanisms of MYCN amplification, etiology and potential interventions is still limited. The knowledge on the molecular mechanisms of MYCN in neuroblastoma, could have potential prognostic and therapeutic advantages.
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9
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Obu S, Umeda K, Ueno H, Sonoda M, Tasaka K, Ogata H, Kouzuki K, Nodomi S, Saida S, Kato I, Hiramatsu H, Okamoto T, Ogawa E, Okajima H, Morita K, Kamikubo Y, Kawaguchi K, Watanabe K, Iwafuchi H, Yagyu S, Iehara T, Hosoi H, Nakahata T, Adachi S, Uemoto S, Heike T, Takita J. CD146 is a potential immunotarget for neuroblastoma. Cancer Sci 2021; 112:4617-4626. [PMID: 34464480 PMCID: PMC8586675 DOI: 10.1111/cas.15124] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 08/13/2021] [Accepted: 08/26/2021] [Indexed: 11/28/2022] Open
Abstract
Neuroblastoma, the most common extracranial solid tumor of childhood, is thought to arise from neural crest‐derived immature cells. The prognosis of patients with high‐risk or recurrent/refractory neuroblastoma remains quite poor despite intensive multimodality therapy; therefore, novel therapeutic interventions are required. We examined the expression of a cell adhesion molecule CD146 (melanoma cell adhesion molecule [MCAM]) by neuroblastoma cell lines and in clinical samples and investigated the anti‐tumor effects of CD146‐targeting treatment for neuroblastoma cells both in vitro and in vivo. CD146 is expressed by 4 cell lines and by most of primary tumors at any stage. Short hairpin RNA‐mediated knockdown of CD146, or treatment with an anti‐CD146 polyclonal antibody, effectively inhibited growth of neuroblastoma cells both in vitro and in vivo, principally due to increased apoptosis via the focal adhesion kinase and/or nuclear factor‐kappa B signaling pathway. Furthermore, the anti‐CD146 polyclonal antibody markedly inhibited tumor growth in immunodeficient mice inoculated with primary neuroblastoma cells. In conclusion, CD146 represents a promising therapeutic target for neuroblastoma.
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Affiliation(s)
- Satoshi Obu
- Department of Pediatrics, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Katsutsugu Umeda
- Department of Pediatrics, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Hiroo Ueno
- Department of Pediatrics, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Mari Sonoda
- Department of Pediatric Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Keiji Tasaka
- Department of Pediatrics, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Hideto Ogata
- Department of Pediatrics, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Kagehiro Kouzuki
- Department of Pediatrics, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Seishiro Nodomi
- Department of Pediatrics, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Satoshi Saida
- Department of Pediatrics, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Itaru Kato
- Department of Pediatrics, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Hidefumi Hiramatsu
- Department of Pediatrics, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Tatsuya Okamoto
- Department of Pediatric Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Eri Ogawa
- Department of Pediatric Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Hideaki Okajima
- Department of Pediatric Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan.,Department of Pediatric Surgery, Kanazawa Medical University, Ishikawa, Japan
| | - Ken Morita
- Department of Human Health Science, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Yasuhiko Kamikubo
- Department of Human Health Science, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Koji Kawaguchi
- Department of Hematology and Oncology, Shizuoka Children's Hospital, Shizuoka, Japan
| | - Kenichiro Watanabe
- Department of Hematology and Oncology, Shizuoka Children's Hospital, Shizuoka, Japan
| | - Hideto Iwafuchi
- Department of Pathology, Shizuoka Children's Hospital, Shizuoka, Japan
| | - Shigeki Yagyu
- Department of Pediatrics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Tomoko Iehara
- Department of Pediatrics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Hajime Hosoi
- Department of Pediatrics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Tatsutoshi Nakahata
- Drug Discovery Technology Development Office, Center for iPS Cell Research and Application, Kyoto University, Kyoto, Japan
| | - Souichi Adachi
- Department of Human Health Science, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Shinji Uemoto
- Department of Pediatric Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Toshio Heike
- Department of Pediatrics, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Junko Takita
- Department of Pediatrics, Graduate School of Medicine, Kyoto University, Kyoto, Japan
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10
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Yu Y, Gao C, Chen Y, Wang M, Zhang J, Ma X, Liu S, Yuan H, Li Z, Niu H. Copy Number Analysis Reveal Genetic Risks of Penile Cancer. Front Oncol 2021; 10:596261. [PMID: 33381457 PMCID: PMC7768990 DOI: 10.3389/fonc.2020.596261] [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: 08/18/2020] [Accepted: 11/10/2020] [Indexed: 11/16/2022] Open
Abstract
Objectives To evaluate copy number alterations (CNAs) in genes associated with penile cancer (PeC) and determine their correlation and prognostic ability with PeC. Methods Whole-exome sequencing was performed for tumor tissue and matched normal DNA of 35 patients diagnosed with penile squamous cell carcinoma from 2011 to 2016. Somatic CNAs were detected using the Genome Analysis Toolkit (GATK). Retrospective clinical data were collected and analyzed. All the data were statistically analyzed using SPSS 16.0 software. The cancer-specific survival rates were estimated by Kaplan-Meier curves and compared with the log-rank test. Results CNAs in the MYCN gene was detected in 19 (amplification: 54.29%) patients. Other CNAs gene targets were FAK (amplification: 45.72%, deletion: 8.57%), TP53 (amplification: 2.86%, deletion: 51.43%), TRKA (amplification: 34.29%, deletion: 2.86%), p75NTR (amplification: 5.71%, deletion: 42.86%), Miz-1 (amplification: 14.29%, deletion: 20.00%), Max (amplification: 17.14%, deletion: 2.86%), Bmi1 (amplification:14.29%, deletion: 48.57%), and MDM2 (amplification: 5.71%, deletion: 45.72%). The CNAs in MYCN and FAK correlated significantly with patient prognosis (P<0.05). The 3-year Recurrence-free survival rate was 87.10% among patients followed up. The 5-year survival rate of patients with MYCN amplification was 69.2%, compared to 94.4% in the non-amplification group. The 5-year survival rate of patients with FAK amplification was 65.6%, compared to 94.7% in the non-amplification group. The PPI network showed that TP53 and MYCN might play meaningful functional roles in PeC. Conclusion MYCN and FAK amplification and TP53 deletion were apparent in PeC. MYCN and TP53 were hub genes in PeC. MYCN and FAK amplification was also detected and analyzed, and the findings indicated that these two genes are predictors of poor prognosis in PeC.
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Affiliation(s)
- Yongbo Yu
- Urology Department, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Chengwen Gao
- Urology Department, The Affiliated Hospital of Qingdao University, Qingdao, China.,Laboratory of Medical Biology, Medical Research Center, The Affiliated Hospital of Qingdao University & The Biomedical Sciences Institute of Qingdao University (Qingdao Branch of SJTU Bio-X Institutes), Qingdao University, Qingdao, China
| | - Yuanbin Chen
- Urology Department, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Meilan Wang
- Nursing Department, The Shengli College, China University of Petroleum, Dongying, China
| | - Jianfeng Zhang
- Urology Department, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Xiaocheng Ma
- Urology Department, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Shuaihong Liu
- Urology Department, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Hang Yuan
- Urology Department, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Zhiqiang Li
- Urology Department, The Affiliated Hospital of Qingdao University, Qingdao, China.,Laboratory of Medical Biology, Medical Research Center, The Affiliated Hospital of Qingdao University & The Biomedical Sciences Institute of Qingdao University (Qingdao Branch of SJTU Bio-X Institutes), Qingdao University, Qingdao, China
| | - Haitao Niu
- Urology Department, The Affiliated Hospital of Qingdao University, Qingdao, China
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11
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Targeting the p53-MDM2 pathway for neuroblastoma therapy: Rays of hope. Cancer Lett 2020; 496:16-29. [PMID: 33007410 DOI: 10.1016/j.canlet.2020.09.023] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Revised: 09/22/2020] [Accepted: 09/22/2020] [Indexed: 12/16/2022]
Abstract
Despite being the subject of extensive research and clinical trials, neuroblastoma remains a major therapeutic challenge in pediatric oncology. The p53 protein is a central safeguard that protects cells against genome instability and malignant transformation. Mutated TP53 (the gene encoding p53) is implicated in many human cancers, but the majority of neuroblastomas have wild type p53 with intact transcriptional function. In fact, the TP53 mutation rate does not exceed 1-2% in neuroblastomas. However, overexpression of the murine double minute 2 (MDM2) gene in neuroblastoma is relatively common, and leads to inhibition of p53. It is also associated with other non-canonical p53-independent functions, including drug resistance and increased translation of MYCN and VEGF mRNA. The p53-MDM2 pathway in neuroblastoma is also modulated at several different molecular levels, including via interactions with other proteins (MYCN, p14ARF). In addition, the overexpression of MDM2 in tumors is linked to a poorer prognosis for cancer patients. Thus, restoring p53 function by inhibiting its interaction with MDM2 is a potential therapeutic strategy for neuroblastoma. A number of p53-MDM2 antagonists have been designed and studied for this purpose. This review summarizes the current understanding of p53 biology and the p53-dependent and -independent oncogenic functions of MDM2 in neuroblastoma, and also the regulation of the p53-MDM2 axis in neuroblastoma. This review also highlights the use of MDM2 as a molecular target for the disease, and describes the MDM2 inhibitors currently being investigated in preclinical and clinical studies. We also briefly explain the various strategies that have been used and future directions to take in the development of effective MDM2 inhibitors for neuroblastoma.
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Stafman LL, Williams AP, Marayati R, Aye JM, Markert HR, Garner EF, Quinn CH, Lallani SB, Stewart JE, Yoon KJ, Whelan K, Beierle EA. Focal Adhesion Kinase Inhibition Contributes to Tumor Cell Survival and Motility in Neuroblastoma Patient-Derived Xenografts. Sci Rep 2019; 9:13259. [PMID: 31519958 PMCID: PMC6744403 DOI: 10.1038/s41598-019-49853-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Accepted: 08/24/2019] [Indexed: 12/29/2022] Open
Abstract
Patient-derived xenografts (PDXs) provide an opportunity to evaluate the effects of therapies in an environment that more closely resembles the human condition than that seen with long-term passage cell lines. In the current studies, we investigated the effects of FAK inhibition on two neuroblastoma PDXs in vitro. Cells were treated with two small molecule inhibitors of FAK, PF-573,228 (PF) and 1,2,4,5-benzentetraamine tetrahydrochloride (Y15). Following FAK inhibition, cell survival and proliferation decreased significantly and cell cycle arrest was seen in both cell lines. Migration and invasion assays were used to determine the effect of FAK inhibition on cell motility, which decreased significantly in both cell lines in the presence of either inhibitor. Finally, tumor cell stemness following FAK inhibition was evaluated with extreme limiting dilution assays as well as with immunoblotting and quantitative real-time PCR for the expression of stem cell markers. FAK inhibition decreased formation of tumorspheres and resulted in a corresponding decrease in established stem cell markers. FAK inhibition decreased many characteristics of the malignant phenotype, including cancer stem cell like features in neuroblastoma PDXs, making FAK a candidate for further investigation as a potential target for neuroblastoma therapy.
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Affiliation(s)
- Laura L Stafman
- Division of Pediatric Surgery, Department of Surgery, University of Alabama, Birmingham, AL, 35205, USA
| | - Adele P Williams
- Division of Pediatric Surgery, Department of Surgery, University of Alabama, Birmingham, AL, 35205, USA
| | - Raoud Marayati
- Division of Pediatric Surgery, Department of Surgery, University of Alabama, Birmingham, AL, 35205, USA
| | - Jamie M Aye
- Division of Pediatric Hematology Oncology, Department of Pediatrics, University of Alabama, Birmingham, AL, 35233, USA
| | - Hooper R Markert
- Division of Pediatric Surgery, Department of Surgery, University of Alabama, Birmingham, AL, 35205, USA
| | - Evan F Garner
- Division of Pediatric Surgery, Department of Surgery, University of Alabama, Birmingham, AL, 35205, USA
| | - Colin H Quinn
- Division of Pediatric Surgery, Department of Surgery, University of Alabama, Birmingham, AL, 35205, USA
| | - Shoeb B Lallani
- Department of Cell Developmental and Integrative Biology, University of Alabama at Birmingham, Birmingham, AL, 35233, USA
| | - Jerry E Stewart
- Division of Pediatric Surgery, Department of Surgery, University of Alabama, Birmingham, AL, 35205, USA
| | - Karina J Yoon
- Department of Pharmacology and Toxicology, University of Alabama, Birmingham, AL, 35233, USA
| | - Kimberly Whelan
- Division of Pediatric Hematology Oncology, Department of Pediatrics, University of Alabama, Birmingham, AL, 35233, USA
| | - Elizabeth A Beierle
- Division of Pediatric Surgery, Department of Surgery, University of Alabama, Birmingham, AL, 35205, USA.
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Li Z, Gao W, Fei Y, Gao P, Xie Q, Xie J, Xu Z. NLGN3 promotes neuroblastoma cell proliferation and growth through activating PI3K/AKT pathway. Eur J Pharmacol 2019; 857:172423. [PMID: 31150649 DOI: 10.1016/j.ejphar.2019.172423] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Revised: 05/24/2019] [Accepted: 05/27/2019] [Indexed: 12/22/2022]
Abstract
Neuroblastoma is the most common extracranial solid tumor of childhood, previous studies show synaptic protein neuroligin-3 (NLGN3) promotes glioma proliferation and growth, However, no investigation about the role of NLGN3 in neuroblastoma was reported. Here, we found NGLGN3 was significantly upregulated in neuroblastoma cells and tissues, its overexpression significantly promoted neuroblastoma cell proliferation and growth determined by MTT analysis, colony formation assay, cell cycle progression analysis, BrdU incorporation assay and animal model, while its knockdown inhibited cell proliferation and growth. Then we found NLGN3 could increase the phosphorylation level of AKT and the transcription activity of FOXO family, suggesting NLGN3 activated PI3K/AKT pathway, inhibition of PI3K/AKT pathway in NLGN3 overexpressing cells inhibited cell proliferation, confirming NLGN3 promoted neuroblastoma proliferation through activating PI3K/AKT pathway. In summary, we found NLGN3 promoted neuroblastoma cell proliferation and growth through activating PI3K/AKT pathway and providing a new target for neuroblastoma therapy.
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Affiliation(s)
- Zuoqing Li
- Department of Pediatric Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, People's Republic of China
| | - Wenzong Gao
- Department of Pediatric Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, People's Republic of China
| | - Yingchun Fei
- Department of Pediatric Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, People's Republic of China
| | - Pengfei Gao
- Department of Pediatric Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, People's Republic of China
| | - Qigen Xie
- Department of Pediatric Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, People's Republic of China
| | - Juntao Xie
- Department of Pediatric Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, People's Republic of China.
| | - Zhe Xu
- Department of Pediatric Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, People's Republic of China.
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Mdlovu NV, Chen Y, Lin KS, Hsu MW, Wang SSS, Wu CM, Lin YS, Ohishi K. Multifunctional nanocarrier as a potential micro-RNA delivery vehicle for neuroblastoma treatment. J Taiwan Inst Chem Eng 2019. [DOI: 10.1016/j.jtice.2018.10.025] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Williams AP, Garner EF, Waters AM, Stafman LL, Aye JM, Markert H, Stewart JE, Beierle EA. Investigation of PP2A and Its Endogenous Inhibitors in Neuroblastoma Cell Survival and Tumor Growth. Transl Oncol 2018; 12:84-95. [PMID: 30286326 PMCID: PMC6169101 DOI: 10.1016/j.tranon.2018.09.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2018] [Revised: 09/17/2018] [Accepted: 09/19/2018] [Indexed: 12/22/2022] Open
Abstract
High-risk neuroblastoma continues to carry a poor prognosis. Nearly 50% of these tumors relapse following extensive treatment regimens. Protein phosphatase 2A (PP2A), a tumor suppressor, has been shown to be downregulated in many human cancers via multiple mechanisms including upregulation of its endogenous inhibitors, I2PP2A or CIP2A. We hypothesized that inhibition of the endogenous PP2A inhibitors or activation of PP2A would decrease tumorigenicity in human neuroblastoma cells. Four human neuroblastoma cell lines were utilized. Expression of PP2A and its endogenous inhibitors I2PP2A and CIP2A was confirmed by immunoblotting. PP2A activation was measured via phosphatase activation assay. Multiple parallel methods including siRNA inhibition of the endogenous PP2A inhibitors and pharmacologic activation of PP2A were utilized. Cell viability, proliferation, migration, and invasion assays were performed. In vivo studies were utilized to determine the effects of PP2A activation on neuroblastoma tumor growth. Inhibition of the endogenous inhibitors of PP2A or pharmacologic activation of PP2A with the PP2A activator FTY720 led to decreased neuroblastoma cell viability, proliferation, migration, and invasion. Treatment of mice bearing SK-N-AS or SK-N-BE(2) neuroblastoma tumors with FTY720 resulted in a significant decrease in tumor growth compared to vehicle-treated animals. In conclusion, activation of PP2A may provide a novel therapeutic target for neuroblastoma.
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Affiliation(s)
- Adele P Williams
- Division of Pediatric Surgery, Department of Surgery, University of Alabama, Birmingham, Birmingham, AL
| | - Evan F Garner
- Division of Pediatric Surgery, Department of Surgery, University of Alabama, Birmingham, Birmingham, AL
| | - Alicia M Waters
- Division of Pediatric Surgery, Department of Surgery, University of Alabama, Birmingham, Birmingham, AL
| | - Laura L Stafman
- Division of Pediatric Surgery, Department of Surgery, University of Alabama, Birmingham, Birmingham, AL
| | - Jamie M Aye
- Division of Hematology and Oncology Department of Pediatrics, University of Alabama, Birmingham, Birmingham, AL
| | - Hooper Markert
- Division of Pediatric Surgery, Department of Surgery, University of Alabama, Birmingham, Birmingham, AL
| | - Jerry E Stewart
- Division of Pediatric Surgery, Department of Surgery, University of Alabama, Birmingham, Birmingham, AL
| | - Elizabeth A Beierle
- Division of Pediatric Surgery, Department of Surgery, University of Alabama, Birmingham, Birmingham, AL.
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Atluri R, Atmaramani R, Tharaka G, McCallister T, Peng J, Diercks D, GhoshMitra S, Ghosh S. Photo-Magnetic Irradiation-Mediated Multimodal Therapy of Neuroblastoma Cells Using a Cluster of Multifunctional Nanostructures. NANOMATERIALS 2018; 8:nano8100774. [PMID: 30274306 PMCID: PMC6215308 DOI: 10.3390/nano8100774] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Revised: 08/13/2018] [Accepted: 08/25/2018] [Indexed: 02/07/2023]
Abstract
The use of high intensity chemo-radiotherapies has demonstrated only modest improvement in the treatment of high-risk neuroblastomas. Moreover, undesirable drug specific and radiation therapy-incurred side effects enhance the risk of developing into a second cancer at a later stage. In this study, a safer and alternative multimodal therapeutic strategy involving simultaneous optical and oscillating (AC, Alternating Current) magnetic field stimulation of a multifunctional nanocarrier system has successfully been implemented to guide neuroblastoma cell destruction. This novel technique permitted the use of low-intensity photo-magnetic irradiation and reduced the required nanoparticle dose level. The combination of released cisplatin from the nanodrug reservoirs and photo-magnetic coupled hyperthermia mediated cytotoxicity led to the complete ablation of the B35 neuroblastoma cells in culture. Our study suggests that smart nanostructure-based photo-magnetic hybrid irradiation is a viable approach to remotely guide neuroblastoma cell destruction, which may be adopted in clinical management post modification to treat aggressive cancers.
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Affiliation(s)
- Rohini Atluri
- Nano-Bio Engineering Laboratory, Southeast Missouri State University, Cape Girardeau, MO 63701, USA.
- Mechanical and Energy Engineering Department, University of North Texas, Denton, TX 76207, USA.
| | - Rahul Atmaramani
- Nano-Bio Engineering Laboratory, Southeast Missouri State University, Cape Girardeau, MO 63701, USA.
- Department of Bioengineering, The University of Texas at Dallas, Richardson, TX 75080, USA.
| | - Gamage Tharaka
- Department of Physics and Engineering Physics, Southeast Missouri State University, Cape Girardeau, MO 63701, USA.
| | - Thomas McCallister
- Nano-Bio Engineering Laboratory, Southeast Missouri State University, Cape Girardeau, MO 63701, USA.
| | - Jian Peng
- Department of Physics and Engineering Physics, Southeast Missouri State University, Cape Girardeau, MO 63701, USA.
| | - David Diercks
- Department of Metallurgical and Materials Engineering, Colorado School of Mines, Golden, CO 80439, USA.
| | - Somesree GhoshMitra
- Nano-Bio Engineering Laboratory, Southeast Missouri State University, Cape Girardeau, MO 63701, USA.
| | - Santaneel Ghosh
- Nano-Bio Engineering Laboratory, Southeast Missouri State University, Cape Girardeau, MO 63701, USA.
- Department of Physics and Engineering Physics, Southeast Missouri State University, Cape Girardeau, MO 63701, USA.
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17
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Williams AP, Waters AM, Stewart JE, Atigadda VR, Mroczek-Musulman E, Muccio DD, Grubbs CJ, Beierle EA. A novel retinoid X receptor agonist, UAB30, inhibits rhabdomyosarcoma cells in vitro. J Surg Res 2018; 228:54-62. [PMID: 29907230 DOI: 10.1016/j.jss.2018.02.057] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2017] [Revised: 02/10/2018] [Accepted: 02/27/2018] [Indexed: 10/17/2022]
Abstract
BACKGROUND While patients with early-stage rhabdomyosarcoma (RMS) have seen steady improvement in prognosis over the last 50 y, those with advanced-stage or high-grade disease continue to have a dismal prognosis. Retinoids have been shown to cause growth suppression and terminal differentiation in RMS cells, but the toxicities associated with retinoic acid limit its use. Rexinoids provide an alternative treatment approach to retinoic acid. Rexinoids primarily bind the retinoid X receptor with minimal retinoic acid receptor binding, the entity responsible for many of the toxicities of retinoid therapies. UAB30 is a novel rexinoid with limited toxicities. We hypothesized that UAB30 would lead to decreased cell survival in RMS. MATERIALS AND METHODS Two RMS cell lines, one embryonal (RD) subtype and one alveolar (St. Jude Cancer Research Hospital 30) subtype, were used. Cells were treated with UAB30, and cytotoxicity, proliferation, mobility, and apoptosis were evaluated. RESULTS UAB30 significantly decreased RMS tumor cell viability and proliferation. Invasion, migration, and attachment-independent growth were reduced following UAB30 treatment. UAB30 also resulted in apoptosis and G1 cell cycle arrest. UAB30 affected both the alveolar and embryonal RMS cell lines in a similar fashion. CONCLUSIONS The results of these studies suggest a potential therapeutic role for the low-toxicity synthetic retinoid X receptor selective agonist, UAB30, in RMS treatment.
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Affiliation(s)
- Adele P Williams
- Department of Surgery, University of Alabama, Birmingham, Birmingham, Alabama
| | - Alicia M Waters
- Department of Surgery, University of Alabama, Birmingham, Birmingham, Alabama
| | - Jerry E Stewart
- Department of Surgery, University of Alabama, Birmingham, Birmingham, Alabama
| | - Venkatram R Atigadda
- Department of Dermatology, University of Alabama, Birmingham, Birmingham, Alabama
| | | | - Donald D Muccio
- Department of Chemistry, University of Alabama, Birmingham, Birmingham, Alabama
| | - Clinton J Grubbs
- Department of Surgery, University of Alabama, Birmingham, Birmingham, Alabama
| | - Elizabeth A Beierle
- Department of Surgery, University of Alabama, Birmingham, Birmingham, Alabama.
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Singhal SS, Singhal S, Singhal P, Singhal J, Horne D, Awasthi S. Didymin: an orally active citrus flavonoid for targeting neuroblastoma. Oncotarget 2017; 8:29428-29441. [PMID: 28187004 PMCID: PMC5438742 DOI: 10.18632/oncotarget.15204] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2016] [Accepted: 01/27/2017] [Indexed: 12/15/2022] Open
Abstract
Neuroblastoma, a rapidly growing yet treatment responsive cancer, is the third most common cancer of children and the most common solid tumor in infants. Unfortunately, neuroblastoma that has lost p53 function often has a highly treatment-resistant phenotype leading to tragic outcomes. In the context of neuroblastoma, the functions of p53 and MYCN (which is amplified in ~25% of neuroblastomas) are integrally linked because they are mutually transcriptionally regulated, and because they together regulate the catalytic activity of RNA polymerases. Didymin is a citrus-derived natural compound that kills p53 wild-type as well as drug-resistant p53-mutant neuroblastoma cells in culture. In addition, orally administered didymin causes regression of neuroblastoma xenografts in mouse models, without toxicity to non-malignant cells, neural tissues, or neural stem cells. RKIP is a Raf-inhibitory protein that regulates MYCN activation, is transcriptionally upregulated by didymin, and appears to play a key role in the anti-neuroblastoma actions of didymin. In this review, we discuss how didymin overcomes drug-resistance in p53-mutant neuroblastoma through RKIP-mediated inhibition of MYCN and its effects on GRK2, PKCs, Let-7 micro-RNA, and clathrin-dependent endocytosis by Raf-dependent and -independent mechanisms. In addition, we will discuss studies supporting potential clinical impact and translation of didymin as a low cost, safe, and effective oral agent that could change the current treatment paradigm for refractory neuroblastoma.
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Affiliation(s)
- Sharad S. Singhal
- Department of Molecular Medicine, Beckman Research Institute of the City of Hope, Comprehensive Cancer Center and National Medical Center, Duarte, CA, USA
| | - Sulabh Singhal
- University of California at San Diego, La Jolla, San Diego, CA, USA
| | | | - Jyotsana Singhal
- Department of Molecular Medicine, Beckman Research Institute of the City of Hope, Comprehensive Cancer Center and National Medical Center, Duarte, CA, USA
| | - David Horne
- Department of Molecular Medicine, Beckman Research Institute of the City of Hope, Comprehensive Cancer Center and National Medical Center, Duarte, CA, USA
| | - Sanjay Awasthi
- Texas Tech University Health Sciences Center, Lubbock, TX, USA
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Horwacik I, Rokita H. Modulation of interactions of neuroblastoma cell lines with extracellular matrix proteins affects their sensitivity to treatment with the anti-GD2 ganglioside antibody 14G2a. Int J Oncol 2017; 50:1899-1914. [PMID: 28393238 DOI: 10.3892/ijo.2017.3959] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2016] [Accepted: 03/20/2017] [Indexed: 11/06/2022] Open
Abstract
Children diagnosed with high risk neuroblastoma have poor prognosis which stimulates efforts to broaden therapies of the neoplasm. GD2-ganglioside (GD2) marks neuroblastoma cells and is a target for monoclonal antibodies. We have recently shown that some neuroblastoma cell lines are sensitive to direct cytotoxicity of the anti-GD2 mouse monoclonal antibody 14G2a (mAb). For IMR-32 and LA-N-1 cell lines, treatment with the 14G2a mAb induced evident changes in appearance such as cell rounding, aggregation, loose contact with culture plastic, or detachment. Such findings prompted us to investigate whether modulation of attachment of neuroblastoma cells to extracellular matrix (ECM) proteins can affect their sensitivity to the 14G2a mAb treatment. First, using ultra-low attachment plates, we show that survival of the IMR-32, LA-N-1, LA-N-5, CHP-134 and Kelly cells depends on attachment. Next, we compared cellular ATP levels of the cell lines treated with the 14G2a mAb using uncoated, fibronectin-, collagen IV-coated surfaces to show that the ECM proteins slightly modulate sensitivity of the cell lines to the mAb. Then, we characterized presence of selected integrin subunits or their complexes on the cell surface. Finally, we applied small molecule inhibitors of selected integrin complexes: obtustatin (inhibiting α1β1 heterodimer), BIO 1211 (inhibiting active α4β1 heterodimer), cilengitide and SB273005 (inhibitors of αVβ3, αVβ5 heterodimers) to verify their effects on attachment of cell lines, cellular ATP levels, and in some experiments activities of apoptosis-executing caspase-3 and -7, for the compounds used alone or in combination with the 14G2a mAb. We characterized levels of total FAK (focal adhesion kinase), p-FAK (Tyr397) in IMR-32 cells treated with BIO 1211, and in LA-N-5, Kelly and SK-N-SH cells treated with SB273005. Our results extend knowledge on factors influencing cytotoxicity of 14G2a.
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Affiliation(s)
- Irena Horwacik
- Laboratory of Molecular Genetics and Virology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, 30-387 Kraków, Poland
| | - Hanna Rokita
- Laboratory of Molecular Genetics and Virology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, 30-387 Kraków, Poland
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SGO1 is involved in the DNA damage response in MYCN-amplified neuroblastoma cells. Sci Rep 2016; 6:31615. [PMID: 27539729 PMCID: PMC4990925 DOI: 10.1038/srep31615] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Accepted: 07/25/2016] [Indexed: 11/08/2022] Open
Abstract
Shugoshin 1 (SGO1) is required for accurate chromosome segregation during mitosis and meiosis; however, its other functions, especially at interphase, are not clearly understood. Here, we found that downregulation of SGO1 caused a synergistic phenotype in cells overexpressing MYCN. Downregulation of SGO1 impaired proliferation and induced DNA damage followed by a senescence-like phenotype only in MYCN-overexpressing neuroblastoma cells. In these cells, SGO1 knockdown induced DNA damage, even during interphase, and this effect was independent of cohesin. Furthermore, MYCN-promoted SGO1 transcription and SGO1 expression tended to be higher in MYCN- or MYC-overexpressing cancers. Together, these findings indicate that SGO1 plays a role in the DNA damage response in interphase. Therefore, we propose that SGO1 represents a potential molecular target for treatment of MYCN-amplified neuroblastoma.
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Waters AM, Stewart JE, Atigadda VR, Mroczek-Musulman E, Muccio DD, Grubbs CJ, Beierle EA. Preclinical Evaluation of UAB30 in Pediatric Renal and Hepatic Malignancies. Mol Cancer Ther 2016; 15:911-21. [PMID: 26873726 DOI: 10.1158/1535-7163.mct-15-0521] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2015] [Accepted: 02/06/2016] [Indexed: 12/13/2022]
Abstract
Rare tumors of solid organs remain some of the most difficult pediatric cancers to cure. These difficult tumors include rare pediatric renal malignancies, such as malignant rhabdoid kidney tumors (MRKT) and non-osseous renal Ewing sarcoma, and hepatoblastoma, a pediatric liver tumor that arises from immature liver cells. There are data in adult renal and hepatic malignancies demonstrating the efficacy of retinoid therapy. The investigation of retinoic acid therapy in cancer is not a new strategy, but the widespread adoption of this therapy has been hindered by toxicities. Our laboratory has been investigating a novel synthetic rexinoid, UAB30, which exhibits a more favorable side-effect profile. In this study, we hypothesized that UAB30 would diminish the growth of tumor cells from both rare renal and liver tumors in vitro and in vivo We successfully demonstrated decreased cellular proliferation, invasion and migration, cell-cycle arrest, and increased apoptosis after treatment with UAB30. Additionally, in in vivo murine models of human hepatoblastoma or rare human renal tumors, there were significantly decreased tumor xenograft growth and increased animal survival after UAB30 treatment. UAB30 should be further investigated as a developing therapeutic in these rare and difficult-to-treat pediatric solid organ tumors. Mol Cancer Ther; 15(5); 911-21. ©2016 AACR.
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Affiliation(s)
- Alicia M Waters
- Department of Surgery, University of Alabama, Birmingham, Birmingham, Alabama
| | - Jerry E Stewart
- Department of Surgery, University of Alabama, Birmingham, Birmingham, Alabama
| | | | | | - Donald D Muccio
- Department of Chemistry, University of Alabama, Birmingham, Birmingham, Alabama
| | - Clinton J Grubbs
- Department of Surgery, University of Alabama, Birmingham, Birmingham, Alabama
| | - Elizabeth A Beierle
- Department of Surgery, University of Alabama, Birmingham, Birmingham, Alabama.
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Stafman LL, Beierle EA. Cell Proliferation in Neuroblastoma. Cancers (Basel) 2016; 8:E13. [PMID: 26771642 PMCID: PMC4728460 DOI: 10.3390/cancers8010013] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2015] [Revised: 01/05/2016] [Accepted: 01/08/2016] [Indexed: 12/19/2022] Open
Abstract
Neuroblastoma, the most common extracranial solid tumor of childhood, continues to carry a dismal prognosis for children diagnosed with advanced stage or relapsed disease. This review focuses upon factors responsible for cell proliferation in neuroblastoma including transcription factors, kinases, and regulators of the cell cycle. Novel therapeutic strategies directed toward these targets in neuroblastoma are discussed.
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Affiliation(s)
- Laura L Stafman
- Department of Surgery, Division of Pediatric Surgery, University of Alabama, Birmingham, AL 35233, USA.
| | - Elizabeth A Beierle
- Department of Surgery, Division of Pediatric Surgery, University of Alabama, Birmingham, AL 35233, USA.
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Gillory LA, Stewart JE, Megison ML, Waters AM, Beierle EA. Focal adhesion kinase and p53 synergistically decrease neuroblastoma cell survival. J Surg Res 2015; 196:339-49. [PMID: 25862488 PMCID: PMC4442704 DOI: 10.1016/j.jss.2015.03.021] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2014] [Revised: 02/10/2015] [Accepted: 03/11/2015] [Indexed: 01/21/2023]
Abstract
Neuroblastoma is the most common extracranial solid tumor of childhood and is responsible for over 15% of pediatric cancer deaths. Focal adhesion kinase (FAK) is a nonreceptor tyrosine kinase that is important in many facets of neuroblastoma tumor development and progression. The p53 oncogene, although wild type in most neuroblastomas, lacks significant function as a tumor suppressor in these tumors. Recent reports have found that FAK and p53 interact in some tumor types. We have hypothesized FAK and p53 coordinately control each other's expression and also interact in neuroblastoma. In the present study, we showed that not only do FAK and p53 interact but each one controls the expression of the other. In addition, we also examined the effects of FAK inhibition combined with p53 activation in neuroblastoma and showed that these two, in combination, had a synergistic effect on neuroblastoma cell survival. The findings from this present study help to further our understanding of the regulation of neuroblastoma tumorigenesis and may provide novel therapeutic strategies and targets for neuroblastoma and other pediatric solid tumors.
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Affiliation(s)
- Lauren A Gillory
- Department of Surgery, University of Alabama, Birmingham, Alabama
| | - Jerry E Stewart
- Department of Surgery, University of Alabama, Birmingham, Alabama
| | | | - Alicia M Waters
- Department of Surgery, University of Alabama, Birmingham, Alabama
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Waters AM, Stewart JE, Atigadda VR, Mroczek-Musulman E, Muccio DD, Grubbs CJ, Beierle EA. Preclinical Evaluation of a Novel RXR Agonist for the Treatment of Neuroblastoma. Mol Cancer Ther 2015; 14:1559-69. [PMID: 25944918 DOI: 10.1158/1535-7163.mct-14-1103] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2014] [Accepted: 04/27/2015] [Indexed: 01/11/2023]
Abstract
Neuroblastoma remains a common cause of pediatric cancer deaths, especially for children who present with advanced stage or recurrent disease. Currently, retinoic acid therapy is used as maintenance treatment to induce differentiation and reduce tumor recurrence following induction therapy for neuroblastoma, but unavoidable side effects are seen. A novel retinoid, UAB30, has been shown to generate negligible toxicities. In the current study, we hypothesized that UAB30 would have a significant impact on multiple neuroblastoma cell lines in vitro and in vivo. Cellular survival, cell-cycle analysis, migration, and invasion were studied using AlamarBlue assays, FACS, and Transwell assays, respectively, in multiple cell lines following treatment with UAB30. In addition, an in vivo murine model of human neuroblastoma was utilized to study the effects of UAB30 upon tumor xenograft growth and animal survival. We successfully demonstrated decreased cellular survival, invasion, and migration, cell-cycle arrest, and increased apoptosis after treatment with UAB30. Furthermore, inhibition of tumor growth and increased survival was observed in a murine neuroblastoma xenograft model. The results of these in vitro and in vivo studies suggest a potential therapeutic role for the low toxicity synthetic retinoid X receptor selective agonist, UAB30, in neuroblastoma treatment.
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Stewart JE, Ma X, Megison M, Nabers H, Cance WG, Kurenova EV, Beierle EA. Inhibition of FAK and VEGFR-3 binding decreases tumorigenicity in neuroblastoma. Mol Carcinog 2015; 54:9-23. [PMID: 23868727 PMCID: PMC4370318 DOI: 10.1002/mc.22070] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2013] [Revised: 06/01/2013] [Accepted: 06/17/2013] [Indexed: 12/20/2022]
Abstract
Neuroblastoma is the most common extracranial solid tumor of childhood and is responsible for over 15% of pediatric cancer deaths. Focal adhesion kinase (FAK) is a nonreceptor tyrosine kinase that is important in many facets of tumor development and progression. Vascular endothelial growth factor receptor-3 (VEGFR-3), another tyrosine kinase, has also been found to be important in the development of many human tumors including neuroblastoma. Recent reports have found that FAK and VEGFR-3 interact, and we have previously shown that both of these kinases interact in neuroblastoma. We have hypothesized that interruption of the FAK-VEGFR-3 interaction would lead to decreased neuroblastoma cell survival. In the current study, we examined the effects of a small molecule, chloropyramine hydrochloride (C4), designed to disrupt the FAK-VEGFR-3 interaction, upon cellular attachment, migration, and survival in two human neuroblastoma cell lines. We also utilized a murine xenograft model to study the impact of C4 upon tumor growth. In these studies, we showed that disruption of the FAK-VEGFR-3 interaction led to decreased cellular attachment, migration, and survival in vitro. In addition, treatment of murine xenografts with chloropyramine hydrochloride decreased neuroblastoma xenograft growth. Further, this molecule acted synergistically with standard chemotherapy to further decrease neuroblastoma xenograft growth. The findings from this current study help to further our understanding of the regulation of neuroblastoma tumorigenesis, and may provide novel therapeutic strategies and targets for neuroblastoma and other solid tumors of childhood.
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Affiliation(s)
- Jerry E Stewart
- University of Alabama, Birmingham, 1600 7th Ave. S., Lowder Building, Room 300, Birmingham, Alabama
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26
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Canaani D. Application of the concept synthetic lethality toward anticancer therapy: A promise fulfilled? Cancer Lett 2014; 352:59-65. [DOI: 10.1016/j.canlet.2013.08.019] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2013] [Revised: 08/02/2013] [Accepted: 08/12/2013] [Indexed: 11/24/2022]
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27
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Beierle EA, Ma X, Stewart JE, Megison M, Cance WG, Kurenova EV. Inhibition of the focal adhesion kinase and vascular endothelial growth factor receptor-3 interaction leads to decreased survival in human neuroblastoma cell lines. Mol Carcinog 2014; 53:230-42. [PMID: 23065847 PMCID: PMC3809027 DOI: 10.1002/mc.21969] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2012] [Revised: 09/11/2012] [Accepted: 09/14/2012] [Indexed: 11/08/2022]
Abstract
Neuroblastoma continues to be a devastating childhood solid tumor and is responsible for over 15% of all childhood cancer-related deaths. Focal adhesion kinase (FAK) and vascular endothelial growth factor receptor-3 (VEGFR-3) are protein tyrosine kinases that are overexpressed in a number of human cancers, including neuroblastoma. These two kinases can directly interact and provide survival signals to cancer cells. In this study, we utilized siRNA to VEGFR-3 to demonstrate the biologic importance of this kinase in neuroblastoma cell survival. We also used confocal microscopy and immunoprecipitation to show that FAK and VEGFR-3 bind in neuroblastoma. Finally, employing a 12-amino-acid peptide (AV3) specific to VEGFR-3, we showed that the colocalization between FAK and VEGFR-3 could be disrupted, and that disruption resulted in decreased neuroblastoma cell survival. These studies provide insight to the FAK-VEGFR-3 interaction in neuroblastoma and demonstrate its importance in this tumor type. Focusing upon the FAK-VEGFR-3 interaction may provide a novel therapeutic target for the development of new strategies for treatment of neuroblastoma.
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Affiliation(s)
- Elizabeth A. Beierle
- University of Alabama, Birmingham, 1600 7 Ave. S., ACC Room 300, Birmingham, AL 35233
| | - Xiaojie Ma
- University of Florida, 1600 Archer Road, Gainesville, FL 32610
| | - Jerry E. Stewart
- University of Alabama, Birmingham, 1600 7 Ave. S., ACC Room 300, Birmingham, AL 35233
| | - Michael Megison
- University of Alabama, Birmingham, 1600 7 Ave. S., ACC Room 300, Birmingham, AL 35233
| | - William G. Cance
- Roswell Park Cancer Institute, Elm and Carlton Streets, Buffalo, NY 14263
| | - Elena V. Kurenova
- Roswell Park Cancer Institute, Elm and Carlton Streets, Buffalo, NY 14263
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28
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Murakami-Tonami Y, Kishida S, Takeuchi I, Katou Y, Maris JM, Ichikawa H, Kondo Y, Sekido Y, Shirahige K, Murakami H, Kadomatsu K. Inactivation of SMC2 shows a synergistic lethal response in MYCN-amplified neuroblastoma cells. Cell Cycle 2014; 13:1115-31. [PMID: 24553121 PMCID: PMC4013162 DOI: 10.4161/cc.27983] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
The condensin complex is required for chromosome condensation during mitosis; however, the role of this complex during interphase is unclear. Neuroblastoma is the most common extracranial solid tumor of childhood, and it is often lethal. In human neuroblastoma, MYCN gene amplification is correlated with poor prognosis. This study demonstrates that the gene encoding the condensin complex subunit SMC2 is transcriptionally regulated by MYCN. SMC2 also transcriptionally regulates DNA damage response genes in cooperation with MYCN. Downregulation of SMC2 induced DNA damage and showed a synergistic lethal response in MYCN-amplified/overexpression cells, leading to apoptosis in human neuroblastoma cells. Finally, this study found that patients bearing MYCN-amplified tumors showed improved survival when SMC2 expression was low. These results identify novel functions of SMC2 in DNA damage response, and we propose that SMC2 (or the condensin complex) is a novel molecular target for the treatment of MYCN-amplified neuroblastoma.
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Affiliation(s)
- Yuko Murakami-Tonami
- Department of Molecular Biology; Nagoya University Graduate School of Medicine; Nagoya, Japan
| | - Satoshi Kishida
- Department of Molecular Biology; Nagoya University Graduate School of Medicine; Nagoya, Japan
| | - Ichiro Takeuchi
- Department of Computer Science/Scientific and Engineering Simulation; Nagoya Institute of Technology; Nagoya, Japan
| | - Yuki Katou
- Laboratory of Genome Structure & Function; Institute of Molecular and Cellular Biosciences; The University of Tokyo; Tokyo, Japan
| | - John M Maris
- Department of Pediatrics and Center for Childhood Cancer Research; Children's Hospital of Philadelphia; University of Pennsylvania; Philadelphia, PA USA
| | | | - Yutaka Kondo
- Division of Molecular Oncology; Aichi Cancer Center Research Institute; Nagoya, Japan; Division of Epigenomics; Aichi Cancer Center Research Institute; Nagoya, Japan
| | - Yoshitaka Sekido
- Division of Molecular Oncology; Aichi Cancer Center Research Institute; Nagoya, Japan
| | - Katsuhiko Shirahige
- Laboratory of Genome Structure & Function; Institute of Molecular and Cellular Biosciences; The University of Tokyo; Tokyo, Japan
| | - Hiroshi Murakami
- Department of Biological Science; Faculty of Science and Engineering; Chuo University; Tokyo, Japan
| | - Kenji Kadomatsu
- Department of Molecular Biology; Nagoya University Graduate School of Medicine; Nagoya, Japan
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Megison ML, Gillory LA, Stewart JE, Nabers HC, Mrozcek-Musulman E, Beierle EA. FAK inhibition abrogates the malignant phenotype in aggressive pediatric renal tumors. Mol Cancer Res 2014; 12:514-26. [PMID: 24464916 DOI: 10.1158/1541-7786.mcr-13-0505] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
UNLABELLED Despite the tremendous advances in the treatment of childhood kidney tumors, there remain subsets of pediatric renal tumors that continue to pose a therapeutic challenge, mainly malignant rhabdoid kidney tumors and nonosseous renal Ewing sarcoma. Children with advanced, metastatic, or relapsed disease have a poor disease-free survival rate. Focal adhesion kinase (FAK) is a nonreceptor tyrosine kinase that is important in many facets of tumor development and progression. FAK has been found in other pediatric solid tumors and in adult renal cellular carcinoma, leading to the hypothesis that FAK contributes to pediatric kidney tumors and would affect cellular survival. In the current study, FAK was present and phosphorylated in pediatric kidney tumor specimens. Moreover, the effects of FAK inhibition upon G401 and SK-NEP-1 cell lines were examined using a number of parallel approaches to block FAK, including RNA interference and small-molecule FAK inhibitors. FAK inhibition resulted in decreased cellular survival, invasion and migration, and increased apoptosis. Furthermore, small-molecule inhibition of FAK led to decreased SK-NEP-1 xenograft growth in vivo. These data deepen the knowledge of the tumorigenic process in pediatric renal tumors, and provide desperately needed therapeutic strategies and targets for these rare, but difficult to treat, malignancies. IMPLICATIONS This study provides a fundamental understanding of tumorigenesis in difficult to treat renal tumors and provides an impetus for new avenues of research and potential for novel, targeted therapies.
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Affiliation(s)
- Michael L Megison
- University of Alabama at Birmingham, 1600 7th Avenue South, Lowder, Room 300, Birmingham, AL 35233.
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30
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Zhang J, Hochwald SN. The role of FAK in tumor metabolism and therapy. Pharmacol Ther 2013; 142:154-63. [PMID: 24333503 DOI: 10.1016/j.pharmthera.2013.12.003] [Citation(s) in RCA: 71] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2013] [Accepted: 11/08/2013] [Indexed: 02/06/2023]
Abstract
Focal adhesion kinase (FAK) plays a vital role in tumor cell proliferation, survival and migration. Altered metabolic pathways fuel rapid tumor growth by accelerating glucose, lipid and glutamine processing. Besides the mitogenic effects of FAK, evidence is accumulating supporting the association between hyper-activated FAK and aberrant metabolism in tumorigenesis. FAK can promote glucose consumption, lipogenesis, and glutamine dependency to promote cancer cell proliferation, motility, and survival. Clinical studies demonstrate that FAK-related alterations of tumor metabolism are associated with increased risk of developing solid tumors. Since FAK contributes to the malignant phenotype, small molecule inhibition of FAK-stimulated bioenergetic and biosynthetic processes can provide a novel approach for therapeutic intervention in tumor growth and invasion.
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Affiliation(s)
- Jianliang Zhang
- Department of Surgical Oncology, Roswell Park Cancer Institute, Elm and Carlton Streets, Buffalo, NY 14263, United States
| | - Steven N Hochwald
- Department of Surgical Oncology, Roswell Park Cancer Institute, Elm and Carlton Streets, Buffalo, NY 14263, United States.
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Li S, Huang X, Zhang D, Huang Q, Pei G, Wang L, Jiang W, Hu Q, Tan R, Hua ZC. Requirement of PEA3 for transcriptional activation of FAK gene in tumor metastasis. PLoS One 2013; 8:e79336. [PMID: 24260201 PMCID: PMC3832605 DOI: 10.1371/journal.pone.0079336] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2013] [Accepted: 09/30/2013] [Indexed: 11/19/2022] Open
Abstract
Focal adhesion kinase (FAK) is a non-receptor tyrosine kinase critically involved in cancer metastasis. We found an elevation of FAK expression in highly metastatic melanoma B16F10 cells compared with its less metastatic partner B16F1 cells. Down-regulation of the FAK expression by either small interfering RNA or dominant negative FAK (FAK Related Non-Kinase, FRNK) inhibited the B16F10 cell migration in vitro and invasiveness in vivo. The mechanism by which FAK activity is up-regulated in highly metastatic cells remains unclear. In this study, we reported for the first time that one of the Est family proteins, PEA3, is able to transactivate FAK expression through binding to the promoter region of FAK. We identified a PEA3-binding site between nucleotides -170 and +43 in the FAK promoter that was critical for the responsiveness to PEA3. A stronger affinity of PEA3 to this region contributed to the elevation of FAK expression in B16F10 cells. Both in vitro and in vivo knockdown of PEA3 gene successfully mimicked the cell migration and invasiveness as that induced by FAK down-regulation. The activation of the well-known upstream of PEA3, such as epidermal growth factor, JNK, and ERK can also induce FAK expression. Furthermore, in the metastatic human clinic tumor specimens from the patients with human primary oral squamous cell carcinoma, we observed a strong positive correlation among PEA3, FAK, and carcinoma metastasis. Taking together, we hypothesized that PEA3 might play an essential role in the activation of the FAK gene during tumor metastasis.
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Affiliation(s)
- Shufeng Li
- The State Key Laboratory of Pharmaceutical Biotechnology, College of Life Science and School of Stomatology, Affiliated Stomatological Hospital, Nanjing University, Nanjing, People’s Republic of China
| | - Xiaofeng Huang
- The State Key Laboratory of Pharmaceutical Biotechnology, College of Life Science and School of Stomatology, Affiliated Stomatological Hospital, Nanjing University, Nanjing, People’s Republic of China
| | - Dapeng Zhang
- The State Key Laboratory of Pharmaceutical Biotechnology, College of Life Science and School of Stomatology, Affiliated Stomatological Hospital, Nanjing University, Nanjing, People’s Republic of China
| | - Qilai Huang
- The State Key Laboratory of Pharmaceutical Biotechnology, College of Life Science and School of Stomatology, Affiliated Stomatological Hospital, Nanjing University, Nanjing, People’s Republic of China
- Changzhou High-Tech Research Institute of Nanjing University and Jiangsu TargetPharma Laboratories Inc., Changzhou, People’s Republic of China
- The State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, People’s Republic of China
| | - Guoshun Pei
- The State Key Laboratory of Pharmaceutical Biotechnology, College of Life Science and School of Stomatology, Affiliated Stomatological Hospital, Nanjing University, Nanjing, People’s Republic of China
| | - Lixiang Wang
- The State Key Laboratory of Pharmaceutical Biotechnology, College of Life Science and School of Stomatology, Affiliated Stomatological Hospital, Nanjing University, Nanjing, People’s Republic of China
| | - Wenhui Jiang
- The State Key Laboratory of Pharmaceutical Biotechnology, College of Life Science and School of Stomatology, Affiliated Stomatological Hospital, Nanjing University, Nanjing, People’s Republic of China
| | - Qingang Hu
- The State Key Laboratory of Pharmaceutical Biotechnology, College of Life Science and School of Stomatology, Affiliated Stomatological Hospital, Nanjing University, Nanjing, People’s Republic of China
| | - Renxiang Tan
- The State Key Laboratory of Pharmaceutical Biotechnology, College of Life Science and School of Stomatology, Affiliated Stomatological Hospital, Nanjing University, Nanjing, People’s Republic of China
| | - Zi-Chun Hua
- The State Key Laboratory of Pharmaceutical Biotechnology, College of Life Science and School of Stomatology, Affiliated Stomatological Hospital, Nanjing University, Nanjing, People’s Republic of China
- Changzhou High-Tech Research Institute of Nanjing University and Jiangsu TargetPharma Laboratories Inc., Changzhou, People’s Republic of China
- The State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, People’s Republic of China
- * E-mail:
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32
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Gillory LA, Megison ML, Stewart JE, Mroczek-Musulman E, Nabers HC, Waters AM, Kelly V, Coleman JM, Markert JM, Gillespie GY, Friedman GK, Beierle EA. Preclinical evaluation of engineered oncolytic herpes simplex virus for the treatment of neuroblastoma. PLoS One 2013; 8:e77753. [PMID: 24130898 PMCID: PMC3795073 DOI: 10.1371/journal.pone.0077753] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2013] [Accepted: 09/06/2013] [Indexed: 12/18/2022] Open
Abstract
Despite intensive research efforts and therapeutic advances over the last few decades, the pediatric neural crest tumor, neuroblastoma, continues to be responsible for over 15% of pediatric cancer deaths. Novel therapeutic options are needed for this tumor. Recently, investigators have shown that mice with syngeneic murine gliomas treated with an engineered, neuroattenuated oncolytic herpes simplex virus-1 (oHSV), M002, had a significant increase in survival. M002 has deletions in both copies of the γ134.5 gene, enabling replication in tumor cells but precluding infection of normal neural cells. We hypothesized that M002 would also be effective in the neural crest tumor, neuroblastoma. We showed that M002 infected, replicated, and decreased survival in neuroblastoma cell lines. In addition, we showed that in murine xenografts, treatment with M002 significantly decreased tumor growth, and that this effect was augmented with the addition of ionizing radiation. Importantly, survival could be increased by subsequent doses of radiation without re-dosing of the virus. Finally, these studies showed that the primary entry protein for oHSV, CD111 was expressed by numerous neuroblastoma cell lines and was also present in human neuroblastoma specimens. We concluded that M002 effectively targeted neuroblastoma and that this oHSV may have potential for use in children with unresponsive or relapsed neuroblastoma.
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Affiliation(s)
- Lauren A. Gillory
- Department of Surgery, Division of Pediatric Surgery, University of Alabama, Birmingham, Birmingham, Alabama, United States of America
| | - Michael L. Megison
- Department of Surgery, Division of Pediatric Surgery, University of Alabama, Birmingham, Birmingham, Alabama, United States of America
| | - Jerry E. Stewart
- Department of Surgery, Division of Pediatric Surgery, University of Alabama, Birmingham, Birmingham, Alabama, United States of America
| | | | - Hugh C. Nabers
- Department of Surgery, Division of Pediatric Surgery, University of Alabama, Birmingham, Birmingham, Alabama, United States of America
| | - Alicia M. Waters
- Department of Surgery, Division of Pediatric Surgery, University of Alabama, Birmingham, Birmingham, Alabama, United States of America
| | - Virginia Kelly
- Department of Pediatrics, Division of Hematology/Oncology, University of Alabama, Birmingham, Birmingham, Alabama, United States of America
| | - Jennifer M. Coleman
- Department of Surgery, Division of Neurosurgery, University of Alabama, Birmingham, Birmingham, Alabama, United States of America
| | - James M. Markert
- Department of Surgery, Division of Neurosurgery, University of Alabama, Birmingham, Birmingham, Alabama, United States of America
| | - G. Yancey Gillespie
- Department of Surgery, Division of Neurosurgery, University of Alabama, Birmingham, Birmingham, Alabama, United States of America
| | - Gregory K. Friedman
- Department of Pediatrics, Division of Hematology/Oncology, University of Alabama, Birmingham, Birmingham, Alabama, United States of America
| | - Elizabeth A. Beierle
- Department of Surgery, Division of Pediatric Surgery, University of Alabama, Birmingham, Birmingham, Alabama, United States of America
- * E-mail:
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Abstract
Neuroblastoma, the most common extracranial solid tumor of childhood, is thought to originate from undifferentiated neural crest cells. Amplification of the MYC family member, MYCN, is found in ∼25% of cases and correlates with high-risk disease and poor prognosis. Currently, amplification of MYCN remains the best-characterized genetic marker of risk in neuroblastoma. This article reviews roles for MYCN in neuroblastoma and highlights recent identification of other driver mutations. Strategies to target MYCN at the level of protein stability and transcription are also reviewed.
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Affiliation(s)
- Miller Huang
- Departments of Neurology, Pediatrics, and Neurosurgery, University of California, San Francisco, California 94158-9001
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Lee S, Qiao J, Paul P, O'Connor KL, Evers MB, Chung DH. FAK is a critical regulator of neuroblastoma liver metastasis. Oncotarget 2013; 3:1576-87. [PMID: 23211542 PMCID: PMC3681496 DOI: 10.18632/oncotarget.732] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Neuroblastomas express increased levels of gastrin-releasing peptide receptor (GRP-R). However, the exact molecular mechanisms involved in GRP-R-mediated cell signaling in neuroblastoma growth and metastasis are unknown. Here, we report that focal adhesion kinase (FAK), as a critical downstream target of GRP-R, is an important regulator of neuroblastoma tumorigenicity. We found that FAK expression correlates with GRP-R expression in human neuroblastoma sections and cell lines. GRP-R overexpression in SK-N-SH cells increased FAK, integrin α3 and β1 expressions and cell migration. These cells demonstrated flatter cell morphology with broad lamellae, in which intense FAK expression was localized to the leading edges of lamellipodia. Interestingly, FAK activation was, in part, dependent on integrin α3 and β1 expression. Conversely, GRP-R silencing decreased FAK as well as Mycn levels in BE(2)-C cells, which displayed a denser cellular morphology. Importantly, rescue experiments in GRP-R silenced BE(2)-C cells showed FAK overexpression significantly enhanced cell viability and soft agar colony formation; similarly, FAK overexpression in SK-N-SH cells also resulted in increased cell growth. These effects were reversed in FAK silenced BE(2)-C cells in vitro as well as in vivo. Moreover, we evaluated the effect of FAK inhibition in vivo. FAK inhibitor (Y15) suppressed GRP-induced neuroblastoma growth and metastasis. Our results indicate that FAK is a critical downstream regulator of GRP-R, which mediates tumorigenesis and metastasis in neuroblastoma.
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Affiliation(s)
- Sora Lee
- Departments of Pediatric Surgery, Vanderbilt University Medical Center1, Nashville, TN, USA
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Megison ML, Gillory LA, Beierle EA. Cell survival signaling in neuroblastoma. Anticancer Agents Med Chem 2013; 13:563-75. [PMID: 22934706 PMCID: PMC3710698 DOI: 10.2174/1871520611313040005] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2012] [Revised: 05/02/2012] [Accepted: 05/04/2012] [Indexed: 01/09/2023]
Abstract
Neuroblastoma is the most common extracranial solid tumor of childhood and is responsible for over 15% of pediatric cancer deaths. Neuroblastoma tumorigenesis and malignant transformation is driven by overexpression and dominance of cell survival pathways and a lack of normal cellular senescence or apoptosis. Therefore, manipulation of cell survival pathways may decrease the malignant potential of these tumors and provide avenues for the development of novel therapeutics. This review focuses on several facets of cell survival pathways including protein kinases (PI3K, AKT, ALK, and FAK), transcription factors (NF-κB, MYCN and p53), and growth factors (IGF, EGF, PDGF, and VEGF). Modulation of each of these factors decreases the growth or otherwise hinders the malignant potential of neuroblastoma, and many therapeutics targeting these pathways are already in the clinical trial phase of development. Continued research and discovery of effective modulators of these pathways will revolutionize the treatment of neuroblastoma.
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36
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FAK Inhibition Decreases Hepatoblastoma Survival Both In Vitro and In Vivo. Transl Oncol 2013; 6:206-15. [PMID: 23544173 DOI: 10.1593/tlo.12505] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2012] [Revised: 01/29/2013] [Accepted: 01/29/2013] [Indexed: 12/31/2022] Open
Abstract
Hepatoblastoma is the most frequently diagnosed liver tumor of childhood, and children with advanced, metastatic or relapsed disease have a disease-free survival rate under 50%. Focal adhesion kinase (FAK) is a nonreceptor tyrosine kinase that is important in many facets of tumor development and progression. FAK has been found in other pediatric solid tumors and in adult hepatocellular carcinoma, leading us to hypothesize that FAK would be present in hepatoblastoma and would impact its cellular survival. In the current study, we showed that FAK was present and phosphorylated in human hepatoblastoma tumor specimens. We also examined the effects of FAK inhibition upon hepatoblastoma cells using a number of parallel approaches to block FAK including RNAi and small molecule FAK inhibitors. FAK inhibition resulted in decreased cellular survival, invasion, and migration and increased apoptosis. Further, small molecule inhibition of FAK led to decreased tumor growth in a nude mouse xenograft model of hepatoblastoma. The findings from this study will help to further our understanding of the regulation of hepatoblastoma tumorigenesis and may provide desperately needed novel therapeutic strategies and targets for aggressive, recurrent, or metastatic hepatoblastomas.
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Inhibition of cyclin-dependent kinase 1–induced cell death in neuroblastoma cells through the microRNA-34a–MYCN–survivin pathway. Surgery 2013; 153:4-16. [DOI: 10.1016/j.surg.2012.03.030] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2011] [Accepted: 03/30/2012] [Indexed: 11/20/2022]
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38
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Zhi W, Minturn J, Rappaport E, Brodeur G, Li H. Network-based analysis of multivariate gene expression data. Methods Mol Biol 2013; 972:121-39. [PMID: 23385535 PMCID: PMC3692268 DOI: 10.1007/978-1-60327-337-4_8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Multivariate microarray gene expression data are commonly collected to study the genomic responses under ordered conditions such as over increasing/decreasing dose levels or over time during biological processes, where the expression levels of a give gene are expected to be dependent. One important question from such multivariate gene expression experiments is to identify genes that show different expression patterns over treatment dosages or over time; these genes can also point to the pathways that are perturbed during a given biological process. Several empirical Bayes approaches have been developed for identifying the differentially expressed genes in order to account for the parallel structure of the data and to borrow information across all the genes. However, these methods assume that the genes are independent. In this paper, we introduce an alternative empirical Bayes approach for analysis of multivariate gene expression data by assuming a discrete Markov random field (MRF) prior, where the dependency of the differential expression patterns of genes on the networks are modeled by a Markov random field. Simulation studies indicated that the method is quite effective in identifying genes and the modified subnetworks and has higher sensitivity than the commonly used procedures that do not use the pathway information, with similar observed false discovery rates. We applied the proposed methods for analysis of a microarray time course gene expression study of TrkA- and TrkB-transfected neuroblastoma cell lines and identified genes and subnetworks on MAPK, focal adhesion, and prion disease pathways that may explain cell differentiation in TrkA-transfected cell lines.
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Affiliation(s)
- Wei Zhi
- Department of Biostatistics and Epidemiology, University of Pennsylvania School of Medicine, Philadelphia, PA 19104, USA
| | - Jane Minturn
- Department of Pediatrics, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA
| | - Eric Rappaport
- Department of Pediatrics, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA
| | - Garrett Brodeur
- Department of Pediatrics, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA
| | - Hongzhe Li
- Department of Pediatrics, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA,Address correspondence to: Hongzhe Li Department of Biostatistics and Epidemiology University of Pennsylvania School of Medicine Philadelphia, PA 19104, USA. Tel: (215) 573-5038
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39
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Megison ML, Stewart JE, Nabers HC, Gillory LA, Beierle EA. FAK inhibition decreases cell invasion, migration and metastasis in MYCN amplified neuroblastoma. Clin Exp Metastasis 2012. [PMID: 23208732 DOI: 10.1007/s10585-012-9560-7] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Neuroblastoma, the most common extracranial solid tumor of childhood, is responsible for over 15 % of pediatric cancer deaths. We have shown that neuroblastoma cell lines overexpress focal adhesion kinase (FAK), a non-receptor protein tyrosine kinase that controls a number of tumorigenic pathways. In this study, we hypothesized that inhibition of FAK would result in decreased cellular migration and invasion in neuroblastoma cell lines, and decrease metastasis in a murine model. We utilized non-isogenic and isogenic MYCN human neuroblastoma cell lines and parallel methods of FAK inhibition. Cell viability, migration, and invasion assays were employed to assess the effects of FAK inhibition in vitro. A nude mouse model was utilized to determine the effects of FAK inhibition on in vivo liver metastasis. FAK knockdown with siRNA resulted in decreased invasion and migration in neuroblastoma cell lines, and the effects of siRNA-induced FAK inhibition were more pronounced in MYCN amplified cell lines. In addition, abrogation of FAK with a small molecule inhibitors resulted in decreased cell survival, migration and invasion in neuroblastoma cell lines, again most pronounced in cell lines with MYCN amplification. Finally, small molecule FAK inhibition in a nude mouse model resulted in a significant decrease in metastatic tumor burden in SK-N-BE(2) injected animals. We believe that FAK plays an important role in maintaining and propagating the metastatic phenotype of neuroblastoma cells, and this driver role is exaggerated in cell lines that overexpress MYCN. FAK inhibition warrants further investigation as a potential therapeutic target in the treatment of aggressive neuroblastoma.
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40
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Ho B, Olson G, Figel S, Gelman I, Cance WG, Golubovskaya VM. Nanog increases focal adhesion kinase (FAK) promoter activity and expression and directly binds to FAK protein to be phosphorylated. J Biol Chem 2012; 287:18656-73. [PMID: 22493428 DOI: 10.1074/jbc.m111.322883] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Nanog and FAK were shown to be overexpressed in cancer cells. In this report, the Nanog overexpression increased FAK expression in 293, SW480, and SW620 cancer cells. Nanog binds the FAK promoter and up-regulates its activity, whereas Nanog siRNA decreases FAK promoter activity and FAK mRNA. The FAK promoter contains four Nanog-binding sites. The site-directed mutagenesis of these sites significantly decreased up-regulation of FAK promoter activity by Nanog. EMSA showed the specific binding of Nanog to each of the four sites, and binding was confirmed by ChIP assay. Nanog directly binds the FAK protein by pulldown and immunoprecipitation assays, and proteins co-localize by confocal microscopy. Nanog binds the N-terminal domain of FAK. In addition, FAK directly phosphorylates Nanog in a dose-dependent manner by in vitro kinase assay and in cancer cells in vivo. The site-directed mutagenesis of Nanog tyrosines, Y35F and Y174F, blocked phosphorylation and binding by FAK. Moreover, overexpression of wild type Nanog increased filopodia/lamellipodia formation, whereas mutant Y35F and Y174F Nanog did not. The wild type Nanog increased cell invasion that was inhibited by the FAK inhibitor and increased by FAK more significantly than with the mutants Y35F and Y174F Nanog. Down-regulation of Nanog with siRNA decreased cell growth reversed by FAK overexpression. Thus, these data demonstrate the regulation of the FAK promoter by Nanog, the direct binding of the proteins, the phosphorylation of Nanog by FAK, and the effect of FAK and Nanog cross-regulation on cancer cell morphology, invasion, and growth that plays a significant role in carcinogenesis.
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Affiliation(s)
- Baotran Ho
- Department of Surgical Oncology, Roswell Park Cancer Institute, Buffalo, New York 14263, USA
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41
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Yang XH, Xiang L, Li X, Zhao TT, Zhang H, Zhou WP, Wang XM, Gong HB, Zhu HL. Synthesis, biological evaluation, and molecular docking studies of 1,3,4-thiadiazol-2-amide derivatives as novel anticancer agents. Bioorg Med Chem 2012; 20:2789-95. [PMID: 22503364 DOI: 10.1016/j.bmc.2012.03.040] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2012] [Revised: 03/18/2012] [Accepted: 03/19/2012] [Indexed: 01/24/2023]
Abstract
A series of 1,3,4-thiadiazol-2-amide derivatives (5a-5y) have been designed and synthesized, and their biological activities were also evaluated as potential antiproliferation and FAK inhibitors. Among all the compounds, 5h showed the most potent activity in vitro, which inhibited the growth of MCF-7 and B16-F10 cell lines with IC(50) values of 0.45 and 0.31 μM, respectively. Compound 5h also exhibited significant FAK inhibitory activity (IC(50)=5.32 μM). Docking simulation was performed to position compound 5h into the FAK structure active site to determine the probable binding model. The results of antiproliferative and Western-blot assay demonstrated that compound 5h possessed good antiproliferative activity. Therefore, compound 5h with potent FAK inhibitory activity may be a potential anticancer agent.
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Affiliation(s)
- Xian-Hui Yang
- State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing 210093, PR China.
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42
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Golubovskaya VM, Figel S, Ho BT, Johnson CP, Yemma M, Huang G, Zheng M, Nyberg C, Magis A, Ostrov DA, Gelman IH, Cance WG. A small molecule focal adhesion kinase (FAK) inhibitor, targeting Y397 site: 1-(2-hydroxyethyl)-3, 5, 7-triaza-1-azoniatricyclo [3.3.1.1(3,7)]decane; bromide effectively inhibits FAK autophosphorylation activity and decreases cancer cell viability, clonogenicity and tumor growth in vivo. Carcinogenesis 2012; 33:1004-13. [PMID: 22402131 DOI: 10.1093/carcin/bgs120] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Focal adhesion kinase (FAK) is a protein tyrosine kinase that is overexpressed in most solid types of tumors and plays an important role in the survival signaling. Recently, we have developed a novel computer modeling combined with a functional assay approach to target the main autophosphorylation site of FAK (Y397). Using these approaches, we identified 1-(2-hydroxyethyl)-3, 5, 7-triaza-1-azoniatricyclo [3.3.1.1(3,7)]decane; bromide, called Y11, a small molecule inhibitor targeting Y397 site of FAK. Y11 significantly and specifically decreased FAK autophosphorylation, directly bound to the N-terminal domain of FAK. In addition, Y11 decreased Y397-FAK autophosphorylation, inhibited viability and clonogenicity of colon SW620 and breast BT474 cancer cells and increased detachment and apoptosis in vitro. Moreover, Y11 significantly decreased tumor growth in the colon cancer cell mouse xenograft model. Finally, tumors from the Y11-treated mice demonstrated decreased Y397-FAK autophosphorylation and activation of poly (ADP ribose) polymerase and caspase-3. Thus, targeting the major autophosphorylation site of FAK with Y11 inhibitor is critical for development of cancer therapeutics and carcinogenesis field.
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Affiliation(s)
- Vita M Golubovskaya
- Department of Surgical Oncology, Department of Cancer Genetics, Roswell Park Cancer Institute, Buffalo, NY 14263, USA.
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43
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Kessler JD, Kahle KT, Sun T, Meerbrey KL, Schlabach MR, Schmitt EM, Skinner SO, Xu Q, Li MZ, Hartman ZC, Rao M, Yu P, Dominguez-Vidana R, Liang AC, Solimini NL, Bernardi RJ, Yu B, Hsu T, Golding I, Luo J, Osborne CK, Creighton CJ, Hilsenbeck SG, Schiff R, Shaw CA, Elledge SJ, Westbrook TF. A SUMOylation-dependent transcriptional subprogram is required for Myc-driven tumorigenesis. Science 2012; 335:348-53. [PMID: 22157079 PMCID: PMC4059214 DOI: 10.1126/science.1212728] [Citation(s) in RCA: 332] [Impact Index Per Article: 27.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Myc is an oncogenic transcription factor frequently dysregulated in human cancer. To identify pathways supporting the Myc oncogenic program, we used a genome-wide RNA interference screen to search for Myc-synthetic lethal genes and uncovered a role for the SUMO-activating enzyme (SAE1/2). Loss of SAE1/2 enzymatic activity drives synthetic lethality with Myc. Inactivation of SAE2 leads to mitotic catastrophe and cell death upon Myc hyperactivation. Mechanistically, SAE2 inhibition switches a transcriptional subprogram of Myc from activated to repressed. A subset of these SUMOylation-dependent Myc switchers (SMS genes) is required for mitotic spindle function and to support the Myc oncogenic program. SAE2 is required for growth of Myc-dependent tumors in mice, and gene expression analyses of Myc-high human breast cancers suggest that low SAE1 and SAE2 abundance in the tumors correlates with longer metastasis-free survival of the patients. Thus, inhibition of SUMOylation may merit investigation as a possible therapy for Myc-driven human cancers.
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MESH Headings
- Animals
- Breast Neoplasms/genetics
- Breast Neoplasms/metabolism
- Breast Neoplasms/mortality
- Breast Neoplasms/pathology
- Cell Cycle
- Cell Line, Tumor
- Cell Transformation, Neoplastic
- Female
- Gene Expression Profiling
- Gene Expression Regulation, Neoplastic
- Genes, myc
- Humans
- Mammary Neoplasms, Experimental/genetics
- Mammary Neoplasms, Experimental/metabolism
- Mammary Neoplasms, Experimental/mortality
- Mammary Neoplasms, Experimental/pathology
- Mice
- Mice, Nude
- Mitosis
- Neoplasm Transplantation
- Proto-Oncogene Proteins c-myc/metabolism
- RNA Interference
- RNA, Small Interfering
- Spindle Apparatus/physiology
- Sumoylation
- Transcription, Genetic
- Transplantation, Heterologous
- Ubiquitin-Activating Enzymes/antagonists & inhibitors
- Ubiquitin-Activating Enzymes/genetics
- Ubiquitin-Activating Enzymes/metabolism
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Affiliation(s)
- Jessica D. Kessler
- Verna & Marrs McLean Dept. of Biochemistry & Molecular Biology, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030
- Dept. of Molecular & Human Genetics, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030
| | - Kristopher T. Kahle
- Howard Hughes Medical Institute, Dept. of Genetics, Harvard Medical School, Division of Genetics, Brigham & Women’s Hospital, Boston, MA02115
- Dept. of Neurosurgery, Massachusetts General Hospital, Boston, MA 02115
| | - Tingting Sun
- Verna & Marrs McLean Dept. of Biochemistry & Molecular Biology, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030
| | - Kristen L. Meerbrey
- Verna & Marrs McLean Dept. of Biochemistry & Molecular Biology, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030
- Dept. of Molecular & Human Genetics, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030
| | - Michael R. Schlabach
- Howard Hughes Medical Institute, Dept. of Genetics, Harvard Medical School, Division of Genetics, Brigham & Women’s Hospital, Boston, MA02115
| | - Earlene M. Schmitt
- Verna & Marrs McLean Dept. of Biochemistry & Molecular Biology, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030
- Dept. of Molecular & Human Genetics, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030
| | - Samuel O. Skinner
- Verna & Marrs McLean Dept. of Biochemistry & Molecular Biology, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030
- Dept. of Physics, University of Illinois, Urbana, IL61801
| | - Qikai Xu
- Howard Hughes Medical Institute, Dept. of Genetics, Harvard Medical School, Division of Genetics, Brigham & Women’s Hospital, Boston, MA02115
| | - Mamie Z. Li
- Howard Hughes Medical Institute, Dept. of Genetics, Harvard Medical School, Division of Genetics, Brigham & Women’s Hospital, Boston, MA02115
| | - Zachary C. Hartman
- Dept. of Clinical Cancer Prevention, M.D. Anderson Cancer Center, Houston, TX 77030
| | - Mitchell Rao
- Dept. of Molecular & Human Genetics, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030
| | - Peng Yu
- Dept. of Molecular & Human Genetics, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030
| | - Rocio Dominguez-Vidana
- Verna & Marrs McLean Dept. of Biochemistry & Molecular Biology, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030
- Dept. of Molecular & Human Genetics, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030
| | - Anthony C. Liang
- Howard Hughes Medical Institute, Dept. of Genetics, Harvard Medical School, Division of Genetics, Brigham & Women’s Hospital, Boston, MA02115
| | - Nicole L. Solimini
- Howard Hughes Medical Institute, Dept. of Genetics, Harvard Medical School, Division of Genetics, Brigham & Women’s Hospital, Boston, MA02115
| | - Ronald J. Bernardi
- Dept. of Pediatrics, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030
| | - Bing Yu
- Medical Oncology Branch, National Cancer Institute, Center Drive, Bethesda MD 20892
| | - Tiffany Hsu
- Verna & Marrs McLean Dept. of Biochemistry & Molecular Biology, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030
- Dept. of Molecular & Human Genetics, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030
| | - Ido Golding
- Verna & Marrs McLean Dept. of Biochemistry & Molecular Biology, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030
- Dept. of Physics, University of Illinois, Urbana, IL61801
| | - Ji Luo
- Medical Oncology Branch, National Cancer Institute, Center Drive, Bethesda MD 20892
| | - C. Kent Osborne
- Dan L. Duncan Cancer Center, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030
- The Lester & Sue Smith Breast Center, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030
- Dept. of Medicine, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030
- Dept. of Molecular & Cellular Biology, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030
| | - Chad J. Creighton
- Division of Biostatistics, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030
- Dan L. Duncan Cancer Center, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030
| | - Susan G. Hilsenbeck
- Division of Biostatistics, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030
- Dan L. Duncan Cancer Center, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030
- The Lester & Sue Smith Breast Center, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030
| | - Rachel Schiff
- Dan L. Duncan Cancer Center, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030
- The Lester & Sue Smith Breast Center, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030
- Dept. of Medicine, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030
- Dept. of Molecular & Cellular Biology, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030
| | - Chad A. Shaw
- Dept. of Molecular & Human Genetics, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030
| | - Stephen J. Elledge
- Howard Hughes Medical Institute, Dept. of Genetics, Harvard Medical School, Division of Genetics, Brigham & Women’s Hospital, Boston, MA02115
| | - Thomas F. Westbrook
- Verna & Marrs McLean Dept. of Biochemistry & Molecular Biology, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030
- Dept. of Molecular & Human Genetics, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030
- Dept. of Pediatrics, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030
- Dan L. Duncan Cancer Center, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030
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44
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Synthesis, biological evaluation and molecular docking studies of 1,3,4-thiadiazole derivatives containing 1,4-benzodioxan as potential antitumor agents. Bioorg Med Chem Lett 2011; 21:6116-21. [PMID: 21889345 DOI: 10.1016/j.bmcl.2011.08.039] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2011] [Revised: 07/25/2011] [Accepted: 08/08/2011] [Indexed: 11/20/2022]
Abstract
A series of 1,3,4-thiadiazole derivatives containing 1,4-benzodioxan (2a-2s) have been synthesized to screen for FAK inhibitory activity. Compound 2p showed the most potent biological activity against HEPG2 cancer cell line (EC(50)=10.28 μg/mL for HEPG2 and EC(50)=10.79 μM for FAK), which was comparable to the positive control. Docking simulation was performed to position compound 2p into the FAK structure active site to determine the probable binding model. The results of antiproliferative and Western-blot assay demonstrated that compound 2p possessed good antiproliferative activity against HEPG2 cancer cell line. Therefore, compound 2p with potent FAK inhibitory activity may be a potential anticancer agent against HEPG2 cancer cell.
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45
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Murphy DM, Buckley PG, Das S, Watters KM, Bryan K, Stallings RL. Co-localization of the oncogenic transcription factor MYCN and the DNA methyl binding protein MeCP2 at genomic sites in neuroblastoma. PLoS One 2011; 6:e21436. [PMID: 21731748 PMCID: PMC3120883 DOI: 10.1371/journal.pone.0021436] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2011] [Accepted: 06/01/2011] [Indexed: 12/20/2022] Open
Abstract
Background MYCN is a transcription factor that is expressed during the development of the neural crest and its dysregulation plays a major role in the pathogenesis of pediatric cancers such as neuroblastoma, medulloblastoma and rhabdomyosarcoma. MeCP2 is a CpG methyl binding protein which has been associated with a number of cancers and developmental disorders, particularly Rett syndrome. Methods and Findings Using an integrative global genomics approach involving chromatin immunoprecipitation applied to microarrays, we have determined that MYCN and MeCP2 co-localize to gene promoter regions, as well as inter/intragenic sites, within the neuroblastoma genome (MYCN amplified Kelly cells) at high frequency (70.2% of MYCN sites were also positive for MeCP2). Intriguingly, the frequency of co-localization was significantly less at promoter regions exhibiting substantial hypermethylation (8.7%), as determined by methylated DNA immunoprecipitation (MeDIP) applied to the same microarrays. Co-immunoprecipitation of MYCN using an anti-MeCP2 antibody indicated that a MYCN/MeCP2 interaction occurs at protein level. mRNA expression profiling revealed that the median expression of genes with promoters bound by MYCN was significantly higher than for genes bound by MeCP2, and that genes bound by both proteins had intermediate expression. Pathway analysis was carried out for genes bound by MYCN, MeCP2 or MYCN/MeCP2, revealing higher order functions. Conclusions Our results indicate that MYCN and MeCP2 protein interact and co-localize to similar genomic sites at very high frequency, and that the patterns of binding of these proteins can be associated with significant differences in transcriptional activity. Although it is not yet known if this interaction contributes to neuroblastoma disease pathogenesis, it is intriguing that the interaction occurs at the promoter regions of several genes important for the development of neuroblastoma, including ALK, AURKA and BDNF.
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Affiliation(s)
- Derek M. Murphy
- Department of Cancer Genetics, Royal College of Surgeons in Ireland, Dublin, Ireland
- Children's Research Centre, Our Lady's Children's Hospital, Crumlin, Dublin, Ireland
| | - Patrick G. Buckley
- Department of Cancer Genetics, Royal College of Surgeons in Ireland, Dublin, Ireland
- Children's Research Centre, Our Lady's Children's Hospital, Crumlin, Dublin, Ireland
- Department of Molecular and Cellular Therapeutics, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Sudipto Das
- Department of Cancer Genetics, Royal College of Surgeons in Ireland, Dublin, Ireland
- Children's Research Centre, Our Lady's Children's Hospital, Crumlin, Dublin, Ireland
| | - Karen M. Watters
- Department of Cancer Genetics, Royal College of Surgeons in Ireland, Dublin, Ireland
- Children's Research Centre, Our Lady's Children's Hospital, Crumlin, Dublin, Ireland
| | - Kenneth Bryan
- Department of Cancer Genetics, Royal College of Surgeons in Ireland, Dublin, Ireland
- Children's Research Centre, Our Lady's Children's Hospital, Crumlin, Dublin, Ireland
| | - Raymond L. Stallings
- Department of Cancer Genetics, Royal College of Surgeons in Ireland, Dublin, Ireland
- Children's Research Centre, Our Lady's Children's Hospital, Crumlin, Dublin, Ireland
- * E-mail:
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46
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Beierle EA. MYCN, neuroblastoma and focal adhesion kinase (FAK). Front Biosci (Elite Ed) 2011; 3:421-33. [PMID: 21196322 DOI: 10.2741/e257] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Neuroblastoma is the most common extracranial solid tumor of childhood. This tumor is characterized by poor survival, especially when it features amplification of the MYCN oncogene. The ability for human cancers to propagate is marked by their ability to invade and metastasize to distant sites. Focal adhesion kinase (FAK) is a key tyrosine kinase involved in the survival and metastasis of a number of human tumor types. We have shown that FAK is present in human neuroblastoma and that its expression in neuroblastoma is related to the MYCN oncogene. We have also demonstrated that inhibition of FAK in neuroblastoma leads to decreased tumor cell survival. The current review addresses the relationship between the MYCN oncogene, focal adhesion kinase and neuroblastoma.
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47
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Ashton GH, Morton JP, Myant K, Phesse TJ, Ridgway RA, Marsh V, Wilkins JA, Athineos D, Muncan V, Kemp R, Neufeld K, Clevers H, Brunton V, Winton DJ, Wang X, Sears RC, Clarke AR, Frame MC, Sansom OJ. Focal adhesion kinase is required for intestinal regeneration and tumorigenesis downstream of Wnt/c-Myc signaling. Dev Cell 2010; 19:259-69. [PMID: 20708588 PMCID: PMC3291717 DOI: 10.1016/j.devcel.2010.07.015] [Citation(s) in RCA: 151] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2008] [Revised: 01/07/2010] [Accepted: 06/16/2010] [Indexed: 12/31/2022]
Abstract
The intestinal epithelium has a remarkable capacity to regenerate after injury and DNA damage. Here, we show that the integrin effector protein Focal Adhesion Kinase (FAK) is dispensable for normal intestinal homeostasis and DNA damage signaling, but is essential for intestinal regeneration following DNA damage. Given Wnt/c-Myc signaling is activated following intestinal regeneration, we investigated the functional importance of FAK following deletion of the Apc tumor suppressor protein within the intestinal epithelium. Following Apc loss, FAK expression increased in a c-Myc-dependent manner. Codeletion of Apc and Fak strongly reduced proliferation normally induced following Apc loss, and this was associated with reduced levels of phospho-Akt and suppression of intestinal tumorigenesis in Apc heterozygous mice. Thus, FAK is required downstream of Wnt Signaling, for Akt/mTOR activation, intestinal regeneration, and tumorigenesis. Importantly, this work suggests that FAK inhibitors may suppress tumorigenesis in patients at high risk of developing colorectal cancer.
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Affiliation(s)
| | | | - Kevin Myant
- The Beatson Institute for Cancer Research, Glasgow G61 1BD, UK
| | - Toby J. Phesse
- School of Biosciences, Cardiff University, Cardiff CF10 3US, UK
| | | | - Victoria Marsh
- School of Biosciences, Cardiff University, Cardiff CF10 3US, UK
| | | | | | - Vanesa Muncan
- Hubrecht Institute-KNAW (Royal Netherlands Academy of Arts and Sciences) and University Medical Center Utrecht, Uppsalalaan 8, 3584 CT Utrecht, The Netherlands
| | - Richard Kemp
- CR-UK Department of Oncology, CIMR, Cambridge CB2 2XY, UK
| | | | - Hans Clevers
- Hubrecht Institute-KNAW (Royal Netherlands Academy of Arts and Sciences) and University Medical Center Utrecht, Uppsalalaan 8, 3584 CT Utrecht, The Netherlands
| | - Valerie Brunton
- Edinburgh Cancer Research UK Centre, IGMM, University of Edinburgh, Edinburgh EH4 2XR, UK
| | | | - Xiaoyan Wang
- Oregon Health and Science University, Portland, OR 97239, USA
| | | | - Alan R. Clarke
- School of Biosciences, Cardiff University, Cardiff CF10 3US, UK
| | - Margaret C. Frame
- Edinburgh Cancer Research UK Centre, IGMM, University of Edinburgh, Edinburgh EH4 2XR, UK
| | - Owen J. Sansom
- The Beatson Institute for Cancer Research, Glasgow G61 1BD, UK
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48
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Beierle EA, Ma X, Trujillo A, Kurenova EV, Cance WG, Golubovskaya VM. Inhibition of focal adhesion kinase and src increases detachment and apoptosis in human neuroblastoma cell lines. Mol Carcinog 2010; 49:224-34. [PMID: 19885861 DOI: 10.1002/mc.20592] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Neuroblastoma is the most common extracranial solid tumor of childhood. Focal adhesion kinase (FAK) is an intracellular kinase that is overexpressed in a number of human tumors including neuroblastoma, and regulates both cellular adhesion and survival. We have studied the effects of FAK inhibition upon neuroblastoma using adenovirus-containing FAK-CD (AdFAK-CD). Utilizing an isogenic MYCN+/MYCN- neuroblastoma cell line, we found that the MYCN+ cells are more sensitive to FAK inhibition with AdFAK-CD than their MYCN negative counterparts. In addition, we have shown that phosphorylation of Src is increased in the untreated isogenic MYCN- neuroblastoma cells, and that the decreased sensitivity of the MYCN- neuroblastoma cells to FAK inhibition with AdFAK-CD is abrogated by the addition of the Src family kinase inhibitor, PP2. The results of the current study suggest that both FAK and Src play a role in protecting neuroblastoma cells from apoptosis, and that dual inhibition of these kinases may be important when designing therapeutic interventions for this tumor.
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Affiliation(s)
- Elizabeth A Beierle
- Department of Surgery, University of Alabama, Birmingham, Alabama 35233, USA
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49
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Beierle EA, Ma X, Stewart J, Nyberg C, Trujillo A, Cance WG, Golubovskaya VM. Inhibition of focal adhesion kinase decreases tumor growth in human neuroblastoma. Cell Cycle 2010; 9:1005-15. [PMID: 20160475 DOI: 10.4161/cc.9.5.10936] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Neuroblastoma is the most common extracranial solid tumor of childhood. Focal adhesion kinase (FAK) is an intracellular kinase that regulates both cellular adhesion and apoptosis. FAK is overexpressed in a number of human tumors including neuroblastoma. Previously, we have shown that the MYCN oncogene, the primary adverse prognostic indicator in neuroblastoma, regulates the expression of FAK in neuroblastoma. In this study, we have examined the effects of FAK inhibition upon neuroblastoma using a small molecule [1,2,4,5-benzenetetraamine tetrahydrochloride (Y15)] to inhibit FAK expression and the phosphorylation of FAK at the Y397 site. Utilizing both non-isogenic and isogenic MYCN(+)/MYCN(-) neuroblastoma cell lines, we found that Y15 effectively diminished phosphorylation of the Y397 site of FAK. Treatment with Y15 resulted in increased detachment, decreased cell viability and increased apoptosis in the neuroblastoma cell lines. We also found that the cell lines with higher MYCN are more sensitive to Y15 treatment than their MYCN negative counterparts. In addition, we have shown that treatment with Y15 in vivo leads to less tumor growth in nude mouse xenograft models, again with the greatest effects seen in MYCN(+) tumor xenografts. The results of the current study suggest that FAK and phosphorylation at the Y397 site plays a role in neuroblastoma cell survival, and that the FAK Y397 phosphorylation site is a potential therapeutic target for this childhood tumor.
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Affiliation(s)
- Elizabeth A Beierle
- Department of Surgery, University of Alabama, Birmingham, Birmingham, AL, USA.
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50
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Deng B, Yang X, Liu J, He F, Zhu Z, Zhang C. Focal adhesion kinase mediates TGF-β1-induced renal tubular epithelial-to-mesenchymal transition in vitro. Mol Cell Biochem 2010; 340:21-9. [DOI: 10.1007/s11010-010-0396-7] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2009] [Accepted: 02/03/2010] [Indexed: 11/29/2022]
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