51
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Tian S, Liu Y, Dong F, Dou Y, Li W, Wang J. Knockdown of microRNA-584 promotes dental pulp stem cells proliferation by targeting TAZ. Cell Cycle 2020; 19:1048-1058. [PMID: 32208890 DOI: 10.1080/15384101.2020.1744976] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Proliferation of dental pulp stem cells (DPSCs) is crucial in tooth development and damage repairing, also includes its therapy application for tissue engineering. MicroRNAs (miRNAs) are key players in biological processes of DPSCs, and transcriptional co-activator with PDZ-binding motif (TAZ) also plays important roles in cell proliferation and differentiation, however, the roles of miR-584 and TAZ in DPSCs are not known. We found up-regulated miR-584 expression and down-regulated TAZ expression levels in aging dental pulp tissue compare to those in young dental pulp tissue. In proliferating DPSCs we demonstrated the decreased miR-584 expression and increased TAZ expression. miR-584 mimics suppressed DPSCs proliferation and migration, and significantly reduced TAZ production, whereas miR-584 inhibition exerted the converse effects. Knocking down of the TAZ in DPSCs had a similar effect as overexpression of miR-584. Furthermore, luciferase reporter assay demonstrated that miR-584 could directly bind to the TAZ mRNA 3'UTR to repress its translation. Overexpression of TAZ can partly rescue miR-584 mimic-mediated the inhibition of proliferation. Additionally, miR-584 inhibited cell proliferation and downregulated expression of cell cycle proteins by AKT signaling pathway. Together, we identified that miR-584 may be a key regulator in the proliferation of DPSCs by regulating TAZ expression via AKT signaling pathway. It would be a promising biomarker and therapeutic target for pulp disease.
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Affiliation(s)
- Songbo Tian
- Department of Oral Pathology, College of Stomatology, Hebei Medical University, Shijiazhuang, China.,Department of Oral Medicine, The Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - Yanping Liu
- Physical Examination Center, The Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - Fusheng Dong
- Department of Oral and Maxillofacial Surgery, College of Stomatology, Hebei Medical University, Shijiazhuang, China
| | - Yongqing Dou
- College of Integrated Chinese and Western Medicine, Hebei University of Chinese Medicine, Shijiazhuang, China
| | - Wenjing Li
- Department of Oral Medicine, The Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - Jie Wang
- Department of Oral Pathology, College of Stomatology, Hebei Medical University, Shijiazhuang, China
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Li J, Tiwari M, Xu X, Chen Y, Tamayo P, Sen GL. TEAD1 and TEAD3 Play Redundant Roles in the Regulation of Human Epidermal Proliferation. J Invest Dermatol 2020; 140:2081-2084.e4. [PMID: 32142794 DOI: 10.1016/j.jid.2020.01.029] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2019] [Revised: 01/15/2020] [Accepted: 01/31/2020] [Indexed: 01/20/2023]
Affiliation(s)
- Jingting Li
- Department of Dermatology, Department of Cellular and Molecular Medicine, UCSD Stem Cell Program, University of California, San Diego, La Jolla, California, USA
| | - Manisha Tiwari
- Department of Dermatology, Department of Cellular and Molecular Medicine, UCSD Stem Cell Program, University of California, San Diego, La Jolla, California, USA
| | - Xiaojun Xu
- Moores Cancer Center, University of California, San Diego, La Jolla, California, USA
| | - Yifang Chen
- Department of Dermatology, Department of Cellular and Molecular Medicine, UCSD Stem Cell Program, University of California, San Diego, La Jolla, California, USA
| | - Pablo Tamayo
- Moores Cancer Center, University of California, San Diego, La Jolla, California, USA; Division of Medical Genetics, School of Medicine, University of California, San Diego, La Jolla, California, USA
| | - George L Sen
- Department of Dermatology, Department of Cellular and Molecular Medicine, UCSD Stem Cell Program, University of California, San Diego, La Jolla, California, USA.
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Sanz Ressel BL, Massone AR, Barbeito CG. Expression of the hippo signalling pathway effector YAP during canine epidermal tumourigenesis. Res Vet Sci 2020; 130:93-97. [PMID: 32155472 DOI: 10.1016/j.rvsc.2020.03.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2019] [Revised: 02/20/2020] [Accepted: 03/02/2020] [Indexed: 11/16/2022]
Abstract
Cutaneous papilloma (CP) and cutaneous squamous cell carcinoma (CSCC) are frequent epidermal tumours in dogs. In this regard, the study of the deregulated activity of signalling molecules during the epidermal tumourigenesis process could be the basis for the development of novel molecular mechanism-based antitumour treatments for CP and CSCC canine patients. Recent evidence suggests that the development and progression of CP and CSCC involve the dysregulated activation of the Hippo signalling pathway effector YAP. Thus, in the present study, we evaluated the immunohistochemical expression pattern of YAP in sections of tissue microarrays constructed from canine samples of normal epidermis, CP, preneoplastic epidermis, and CSCC. In samples of CP, preneoplastic epidermis, and CSCC, YAP expression was significantly increased relative to normal epidermis. This emerging evidence suggests that the dysregulated activity of the Hippo signalling pathway effector YAP represents a frequent event during canine epidermal tumourigenesis, pointing to this protein as a potential therapeutic target for the treatment of CP and CSCC in dogs.
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Affiliation(s)
- Berenice Liyare Sanz Ressel
- Laboratorio de Histología y Embriología Descriptiva, Experimental y Comparada (LHYEDEC), Facultad de Ciencias Veterinarias, Universidad Nacional de La Plata, La Plata, Buenos Aires, Argentina; Facultad de Ciencias Veterinarias, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad Nacional de La Plata, La Plata, Buenos Aires, Argentina.
| | - Adriana Raquel Massone
- Laboratorio de Patología Especial Veterinaria Dr. Bernardo Epstein, Facultad de Ciencias Veterinarias, Universidad Nacional de La Plata, La Plata, Buenos Aires, Argentina
| | - Claudio Gustavo Barbeito
- Laboratorio de Histología y Embriología Descriptiva, Experimental y Comparada (LHYEDEC), Facultad de Ciencias Veterinarias, Universidad Nacional de La Plata, La Plata, Buenos Aires, Argentina; Facultad de Ciencias Veterinarias, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad Nacional de La Plata, La Plata, Buenos Aires, Argentina
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54
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NUAK2 localization in normal skin and its expression in a variety of skin tumors with YAP. J Dermatol Sci 2020; 97:143-151. [PMID: 32001115 DOI: 10.1016/j.jdermsci.2020.01.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2019] [Revised: 12/29/2019] [Accepted: 01/20/2020] [Indexed: 12/18/2022]
Abstract
BACKGROUND NUAK2 is a critical gene that participates in the carcinogenesis of various types of cancers including melanomas. However, the expression patterns of NUAK2 in normal skin and in various types of skin tumors have not been fully elucidated to date. OBJECTIVES To elucidate the distribution and localization of NUAK2 expression in normal skin, and characterize the expression patterns of NUAK2 and YAP in various types of skin tumors. METHODS In this study, we characterized the expression of NUAK2 in tissues by developing a novel NUAK2-specific monoclonal antibody and using that to determine NUAK2 expression patterns in normal skin and in 155 cases of various types of skin tumors, including extramammary Paget's disease (EMPD), squamous cell carcinoma (SCC), Bowen's disease (BD), actinic keratosis (AK), basal cell carcinoma (BCC) and angiosarcoma (AS). Further, we analyzed the expression patterns of YAP and p-Akt in those tumors. RESULTS Our analyses revealed that NUAK2 is expressed at high frequencies in EMPD, SCC, BD, AK, BCC and AS. The expression of p-Akt was positively correlated with tumor size in EMPD (P = 0.001). Importantly, the expression of NUAK2 was significantly correlated with YAP in SCC (P = 0.012) and in BD (P = 0.009). CONCLUSIONS Our results suggest that the YAP-NUAK2 axis has critical importance in the tumorigenesis of SCC and BD, and that therapeutic modalities targeting the YAP-NUAK2 axis may be an effective approach against skin tumors including SCC and BD.
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55
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Reggiani F, Gobbi G, Ciarrocchi A, Ambrosetti DC, Sancisi V. Multiple roles and context-specific mechanisms underlying YAP and TAZ-mediated resistance to anti-cancer therapy. Biochim Biophys Acta Rev Cancer 2020; 1873:188341. [PMID: 31931113 DOI: 10.1016/j.bbcan.2020.188341] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Revised: 01/09/2020] [Accepted: 01/09/2020] [Indexed: 02/07/2023]
Abstract
Understanding the molecular mechanisms driving resistance to anti-cancer drugs is both a crucial step to define markers of response to therapy and a clinical need in many cancer settings. YAP and TAZ transcriptional cofactors behave as oncogenes in different cancer types. Deregulation of YAP/TAZ expression or alterations in components of the multiple signaling pathways converging on these factors are important mechanisms of resistance to chemotherapy, target therapy and hormone therapy. Moreover, response to immunotherapy may also be affected by YAP/TAZ activities in both tumor and microenvironment cells. For these reasons, various compounds inhibiting YAP/TAZ function by different direct and indirect mechanisms have been proposed as a mean to counter-act drug resistance in cancer. A particularly promising approach may be to simultaneously target both YAP/TAZ expression and their transcriptional activity through BET inhibitors.
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Affiliation(s)
- Francesca Reggiani
- Laboratory of Translational Research, Azienda USL- IRCCS di Reggio Emilia, Reggio Emilia, Italy
| | - Giulia Gobbi
- Laboratory of Translational Research, Azienda USL- IRCCS di Reggio Emilia, Reggio Emilia, Italy
| | - Alessia Ciarrocchi
- Laboratory of Translational Research, Azienda USL- IRCCS di Reggio Emilia, Reggio Emilia, Italy
| | | | - Valentina Sancisi
- Laboratory of Translational Research, Azienda USL- IRCCS di Reggio Emilia, Reggio Emilia, Italy.
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Borreguero-Muñoz N, Fletcher GC, Aguilar-Aragon M, Elbediwy A, Vincent-Mistiaen ZI, Thompson BJ. The Hippo pathway integrates PI3K-Akt signals with mechanical and polarity cues to control tissue growth. PLoS Biol 2019; 17:e3000509. [PMID: 31613895 PMCID: PMC6814241 DOI: 10.1371/journal.pbio.3000509] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Revised: 10/25/2019] [Accepted: 10/03/2019] [Indexed: 11/19/2022] Open
Abstract
The Hippo signalling pathway restricts cell proliferation in animal tissues by inhibiting Yes-associated protein (YAP or YAP1) and Transcriptional Activator with a PDZ domain (TAZ or WW-domain-containing transcriptional activator [WWTR1]), coactivators of the Scalloped (Sd or TEAD) DNA-binding transcription factor. Drosophila has a single YAP/TAZ homolog named Yorkie (Yki) that is regulated by Hippo pathway signalling in response to epithelial polarity and tissue mechanics during development. Here, we show that Yki translocates to the nucleus to drive Sd-mediated cell proliferation in the ovarian follicle cell epithelium in response to mechanical stretching caused by the growth of the germline. Importantly, mechanically induced Yki nuclear localisation also requires nutritionally induced insulin/insulin-like growth factor 1 (IGF-1) signalling (IIS) via phosphatidyl inositol-3-kinase (PI3K), phosphoinositide-dependent kinase 1 (PDK1 or PDPK1), and protein kinase B (Akt or PKB) in the follicular epithelium. We find similar results in the developing Drosophila wing, where Yki becomes nuclear in the mechanically stretched cells of the wing pouch during larval feeding, which induces IIS, but translocates to the cytoplasm upon cessation of feeding in the third instar stage. Inactivating Akt prevents nuclear Yki localisation in the wing disc, while ectopic activation of the insulin receptor, PI3K, or Akt/PKB is sufficient to maintain nuclear Yki in mechanically stimulated cells of the wing pouch even after feeding ceases. Finally, IIS also promotes YAP nuclear localisation in response to mechanical cues in mammalian skin epithelia. Thus, the Hippo pathway has a physiological function as an integrator of epithelial cell polarity, tissue mechanics, and nutritional cues to control cell proliferation and tissue growth in both Drosophila and mammals.
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Affiliation(s)
| | - Georgina C. Fletcher
- Epithelial Biology Laboratory, The Francis Crick Institute, London, United Kingdom
| | - Mario Aguilar-Aragon
- Epithelial Biology Laboratory, The Francis Crick Institute, London, United Kingdom
| | - Ahmed Elbediwy
- Epithelial Biology Laboratory, The Francis Crick Institute, London, United Kingdom
| | | | - Barry J. Thompson
- Epithelial Biology Laboratory, The Francis Crick Institute, London, United Kingdom
- EMBL Australia, Department of Cancer Biology & Therapeutics, The John Curtin School of Medical Research, The Australian National University, Acton, Australia
- * E-mail:
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57
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Abstract
YAP and TAZ are transcriptional activators pervasively induced in several human solid tumours and their functions in cancer cells are the focus of intense investigation. These studies established that YAP and TAZ are essential to trigger numerous cell-autonomous responses, such as sustained proliferation, cell plasticity, therapy resistance and metastasis. Yet tumours are complex entities, wherein cancer cells are just one of the components of a composite "tumour tissue". The other component, the tumour stroma, is composed of an extracellular matrix with aberrant mechanical properties and other cell types, including cancer-associated fibroblasts and immune cells. The stroma entertains multiple and bidirectional interactions with tumour cells, establishing dependencies essential to unleash tumorigenesis. The molecular players of such interplay remain partially understood. Here, we review the emerging role of YAP and TAZ in choreographing tumour-stromal interactions. YAP and TAZ act within tumour cells to orchestrate responses in stromal cells. Vice versa, YAP and TAZ in stromal cells trigger effects that positively feed back on the growth of tumour cells. Recognizing YAP and TAZ as a hub of the network of signals exchanged within the tumour microenvironment provides a fresh perspective on the molecular principles of tumour self-organization, promising to unveil numerous new vulnerabilities.
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Affiliation(s)
| | | | - Stefano Piccolo
- Department of Molecular Medicine, University of Padova, Padua, Italy.
- IFOM, The FIRC Institute of Molecular Oncology, Padua, Italy.
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58
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Dong X, Meng L, Liu P, Ji R, Su X, Xin Y, Jiang X. YAP/TAZ: a promising target for squamous cell carcinoma treatment. Cancer Manag Res 2019; 11:6245-6252. [PMID: 31360073 PMCID: PMC6625644 DOI: 10.2147/cmar.s197921] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Accepted: 06/04/2019] [Indexed: 12/03/2022] Open
Abstract
Yes-associated protein (YAP) and transcriptional coactivator with PDZ-binding motif (TAZ) are two homologous transcriptional coactivators and the final effectors of the Hippo signaling transduction pathway. The transcriptional activity of YAP/TAZ is dependent on their recruitment to the nucleus, which promotes binding to the transcription factor of TEA domain family members 1–4 (TEAD1-4). In Hippo-signaling pathway, YAP/TAZ is inactivated and its translocation to the nucleus is blocked via a core kinase cascade stimulated by a variety of upstream signals, such as G-protein-coupled receptor signaling, mechanical pressure, and adherens junction signaling. This pathway plays a very important role in regulating organ size, tissue homeostasis, and tumor development. In recent years, many studies have reported upregulation or nuclear localization of YAP/TAZ in a number of human malignancies, such as breast cancer, melanoma, lung cancer, especially squamous cell carcinoma in different organs. A large number of experiments demonstrate that YAP/TAZ activation promotes cancer formation, progression, and metastasis. Therefore, in this review, we summarize the evidence of regulation and function of YAP/TAZ and discuss its role in squamous cell carcinoma. Collectively, this summary strongly suggests that targeting aberrant YAP/TAZ activation is a promising strategy for the suppression of squamous cell carcinoma.
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Affiliation(s)
- Xiaoming Dong
- Department of Radiation Oncology, The First Hospital of Jilin University, Changchun 130021, People's Republic of China.,Key Laboratory of Pathobiology, Ministry of Education, Jilin University, Changchun 130021, People's Republic of China
| | - Lingbin Meng
- Department of Internal Medicine, Florida Hospital, Orlando, FL 32804, USA
| | - Pinyi Liu
- Key Laboratory of Pathobiology, Ministry of Education, Jilin University, Changchun 130021, People's Republic of China
| | - Rui Ji
- Department of Biology, Valencia College, Orlando, FL 32804, USA
| | - Xuling Su
- Key Laboratory of Pathobiology, Ministry of Education, Jilin University, Changchun 130021, People's Republic of China
| | - Ying Xin
- Key Laboratory of Pathobiology, Ministry of Education, Jilin University, Changchun 130021, People's Republic of China
| | - Xin Jiang
- Department of Radiation Oncology, The First Hospital of Jilin University, Changchun 130021, People's Republic of China
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59
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Sekine S, Kiyono T, Ryo E, Ogawa R, Wakai S, Ichikawa H, Suzuki K, Arai S, Tsuta K, Ishida M, Sasajima Y, Goshima N, Yamazaki N, Mori T. Recurrent YAP1-MAML2 and YAP1-NUTM1 fusions in poroma and porocarcinoma. J Clin Invest 2019; 129:3827-3832. [PMID: 31145701 DOI: 10.1172/jci126185] [Citation(s) in RCA: 143] [Impact Index Per Article: 28.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Poroma is a benign skin tumor exhibiting terminal sweat gland duct differentiation. The present study aimed to explore the potential role of gene fusions in the tumorigenesis of poromas. RNA sequencing and reverse transcription PCR identified highly recurrent YAP1-MAML2 and YAP1-NUTM1 fusions in poromas (92/104 lesions, 88.5%) and their rare malignant counterpart, porocarcinomas (7/11 lesions, 63.6%). A WWTR1-NUTM1 fusion was identified in a single lesion of poroma. Fluorescent in-situ hybridization confirmed genomic rearrangements involving these genetic loci. Immunohistochemical staining could readily identify the YAP1 fusion products as nuclear expression of the N-terminal portion of YAP1 with a lack of the C-terminal portion. YAP1 and WWTR1, also known as YAP and TAZ, respectively, encode paralogous transcriptional activators of TEAD, which are negatively regulated by the Hippo signaling pathway. The YAP1 and WWTR1 fusions strongly transactivated a TEAD reporter and promoted anchorage-independent growth, confirming their tumorigenic roles. Our results demonstrate the frequent presence of transforming YAP1 fusions in poromas and porocarcinomas and suggest YAP1/TEAD-dependent transcription as a candidate therapeutic target against porocarcinoma.
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Affiliation(s)
- Shigeki Sekine
- Department of Diagnostic Pathology, National Cancer Center Hospital, Tokyo, Japan.,Division of Molecular Pathology
| | - Tohru Kiyono
- Division of Carcinogenesis and Cancer Prevention.,Department of Cell Culture Technology, and
| | | | | | - Susumu Wakai
- Department of Diagnostic Pathology, National Cancer Center Hospital, Tokyo, Japan
| | - Hitoshi Ichikawa
- Department of Clinical Genomics, National Cancer Center Research Institute, Tokyo, Japan
| | | | - Satoru Arai
- Department of Dermatology, St. Luke's International Hospital, Tokyo, Japan
| | - Koji Tsuta
- Department of Pathology and Laboratory Medicine, Kansai Medical University, Osaka, Japan
| | - Mitsuaki Ishida
- Department of Pathology and Laboratory Medicine, Kansai Medical University, Osaka, Japan
| | - Yuko Sasajima
- Department of Pathology, Teikyo University School of Medicine, Tokyo, Japan
| | - Naoki Goshima
- Molecular Profiling Research Center for Drug Discovery, National Institute of Advanced Industrial Science and Technology, Tokyo, Japan
| | - Naoya Yamazaki
- Department of Dermatologic Oncology, National Cancer Center Hospital, Tokyo, Japan
| | - Taisuke Mori
- Department of Diagnostic Pathology, National Cancer Center Hospital, Tokyo, Japan.,Division of Molecular Pathology
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60
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Oceandy D, Amanda B, Ashari FY, Faizah Z, Azis MA, Stafford N. The Cross-Talk Between the TNF-α and RASSF-Hippo Signalling Pathways. Int J Mol Sci 2019; 20:ijms20092346. [PMID: 31083564 PMCID: PMC6539482 DOI: 10.3390/ijms20092346] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Revised: 05/07/2019] [Accepted: 05/08/2019] [Indexed: 12/14/2022] Open
Abstract
The regulation of cell death through apoptosis is essential to a number of physiological processes. Defective apoptosis regulation is associated with many abnormalities including anomalies in organ development, altered immune response and the development of cancer. Several signalling pathways are known to regulate apoptosis including the Tumour Necrosis Factor-α (TNF-α) and Hippo signalling pathways. In this paper we review the cross-talk between the TNF-α pathway and the Hippo signalling pathway. Several molecules that tightly regulate the Hippo pathway, such as members of the Ras-association domain family member (RASSF) family proteins, interact and modulate some key proteins within the TNF-α pathway. Meanwhile, TNF-α stimulation also affects the expression and activation of core components of the Hippo pathway. This implies the crucial role of signal integration between these two major pathways in regulating apoptosis.
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Affiliation(s)
- Delvac Oceandy
- Division of Cardiovascular Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester M13 9PT, UK.
- Department of Biomedical Science, Faculty of Medicine, Universitas Airlangga, Surabaya 60132, Indonesia.
| | - Bella Amanda
- Department of Biomedical Science, Faculty of Medicine, Universitas Airlangga, Surabaya 60132, Indonesia.
| | - Faisal Yusuf Ashari
- Department of Biomedical Science, Faculty of Medicine, Universitas Airlangga, Surabaya 60132, Indonesia.
| | - Zakiyatul Faizah
- Department of Biomedical Science, Faculty of Medicine, Universitas Airlangga, Surabaya 60132, Indonesia.
| | - M Aminudin Azis
- Department of Biomedical Science, Faculty of Medicine, Universitas Airlangga, Surabaya 60132, Indonesia.
| | - Nicholas Stafford
- Division of Cardiovascular Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester M13 9PT, UK.
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61
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Rognoni E, Walko G. The Roles of YAP/TAZ and the Hippo Pathway in Healthy and Diseased Skin. Cells 2019; 8:cells8050411. [PMID: 31058846 PMCID: PMC6562585 DOI: 10.3390/cells8050411] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Revised: 04/19/2019] [Accepted: 04/30/2019] [Indexed: 12/15/2022] Open
Abstract
Skin is the largest organ of the human body. Its architecture and physiological functions depend on diverse populations of epidermal cells and dermal fibroblasts. Reciprocal communication between the epidermis and dermis plays a key role in skin development, homeostasis and repair. While several stem cell populations have been identified in the epidermis with distinct locations and functions, there is additional heterogeneity within the mesenchymal cells of the dermis. Here, we discuss the current knowledge of how the Hippo pathway and its downstream effectors Yes-associated protein (YAP) and transcriptional coactivator with PDZ-binding motif (TAZ) contribute to the maintenance, activation and coordination of the epidermal and dermal cell populations during development, homeostasis, wound healing and cancer.
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Affiliation(s)
- Emanuel Rognoni
- Centre for Endocrinology, William Harvey Research Institute, Barts and The London School of Medicine, Queen Mary University of London, London EC1M 6BQ, UK.
| | - Gernot Walko
- Department of Biology and Biochemistry & Centre for Therapeutic Innovation, University of Bath, Claverton Down, Bath BA2 7AY, UK.
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62
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Vandenberghe P, Delvaux M, Hagué P, Erneux C, Vanderwinden JM. Potentiation of imatinib by cilostazol in sensitive and resistant gastrointestinal stromal tumor cell lines involves YAP inhibition. Oncotarget 2019; 10:1798-1811. [PMID: 30956759 PMCID: PMC6442998 DOI: 10.18632/oncotarget.26734] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Accepted: 02/03/2019] [Indexed: 12/14/2022] Open
Abstract
Despite the introduction of tyrosine kinase inhibitors, gastrointestinal stromal tumors (GIST) resistance remains a major clinical challenge. We previously identified phosphodiesterase 3A (PDE3A) as a potential therapeutic target expressed in most GIST. The PDE3 inhibitor cilostazol reduced cell viability and synergized with the tyrosine kinase inhibitor imatinib (Gleevec™) in the imatinib-sensitive GIST882 cell line. Here, we found that cilostazol potentiated imatinib also in the imatinib-resistant GIST48 cell line. Cilostazol induced nuclear exclusion, hence inactivation, of the transcriptional co-activator YAP, in a cAMP-independent manner. Verteporfin, a YAP/TEAD interaction inhibitor, reduced by 90% the viability of both GIST882 and GIST48 cells. Our results highlight the potential use of compounds targeting PDE3A or YAP in combined multitherapy to tackle GIST resistance.
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Affiliation(s)
- Pierre Vandenberghe
- Laboratory of Neurophysiology, Faculty of Medicine, Université Libre de Bruxelles, Brussels, Belgium
| | - Marine Delvaux
- Laboratory of Neurophysiology, Faculty of Medicine, Université Libre de Bruxelles, Brussels, Belgium
| | - Perrine Hagué
- Laboratory of Neurophysiology, Faculty of Medicine, Université Libre de Bruxelles, Brussels, Belgium
| | - Christophe Erneux
- IRIBHM, Faculty of Medicine, Université Libre de Bruxelles, Brussels, Belgium
| | - Jean-Marie Vanderwinden
- Laboratory of Neurophysiology, Faculty of Medicine, Université Libre de Bruxelles, Brussels, Belgium
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63
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Pastushenko I, Blanpain C. EMT Transition States during Tumor Progression and Metastasis. Trends Cell Biol 2018; 29:212-226. [PMID: 30594349 DOI: 10.1016/j.tcb.2018.12.001] [Citation(s) in RCA: 1567] [Impact Index Per Article: 261.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Revised: 11/30/2018] [Accepted: 12/03/2018] [Indexed: 12/12/2022]
Abstract
Epithelial-mesenchymal transition (EMT) is a process in which epithelial cells acquire mesenchymal features. In cancer, EMT is associated with tumor initiation, invasion, metastasis, and resistance to therapy. Recently, it has been demonstrated that EMT is not a binary process, but occurs through distinct cellular states. Here, we review the recent studies that demonstrate the existence of these different EMT states in cancer and the mechanisms regulating their functions. We discuss the different functional characteristics, such as proliferation, propagation, plasticity, invasion, and metastasis associated with the distinct EMT states. We summarize the role of the transcriptional and epigenetic landscapes, gene regulatory network and their surrounding niche in controlling the transition through the different EMT states.
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Affiliation(s)
- Ievgenia Pastushenko
- Laboratory of Stem Cells and Cancer, Université Libre de Bruxelles, Brussels, Belgium
| | - Cédric Blanpain
- Laboratory of Stem Cells and Cancer, Université Libre de Bruxelles, Brussels, Belgium; WELBIO, Université Libre de Bruxelles, Brussels, Belgium.
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64
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Cyclopeptide RA-V Inhibits Organ Enlargement and Tumorigenesis Induced by YAP Activation. Cancers (Basel) 2018; 10:cancers10110449. [PMID: 30453531 PMCID: PMC6265802 DOI: 10.3390/cancers10110449] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Revised: 11/09/2018] [Accepted: 11/12/2018] [Indexed: 12/14/2022] Open
Abstract
The Hippo pathway restricts organ size during development and its inactivation plays a crucial role in cancer. Yes-associated protein (YAP) and its paralog transcriptional coactivator with PSD-95/Dlg/ZO-1 (PDZ)-binding motif (TAZ) are transcription co-activators and effectors of the Hippo pathway mediating aberrant enlargement of organs and tumor growth upon Hippo pathway inactivation. It has been demonstrated that genetic inactivation of YAP could be an effective approach to inhibit tumorigenesis. In order to identify pharmacological inhibitors of YAP, we screened a library of 52,683 compounds using a YAP-specific reporter assay. In this screen we identified cyclopeptide RA-V (deoxybouvardin) as a specific inhibitor of YAP and TAZ but not other reporters. Unexpectedly, later experiments demonstrated that RA-V represses the protein but not mRNA levels of YAP target genes. Nevertheless, RA-V strongly blocks liver enlargement induced by Mst1/2 knockout. Furthermore, RA-V not only inhibits liver tumorigenesis induced by YAP activation, but also induces regression of established tumors. We found that RA-V inhibits dedifferentiation and proliferation, while inducing apoptosis of hepatocytes. Furthermore, RA-V also induces apoptosis and inhibits proliferation of macrophages in the microenvironment, which are essential for YAP-induced tumorigenesis. RA-V is thus a drug candidate for cancers involving YAP/TAZ activation.
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Liu HY, Nguyen HD, Lin CC. Dynamic PEG-Peptide Hydrogels via Visible Light and FMN-Induced Tyrosine Dimerization. Adv Healthc Mater 2018; 7:e1800954. [PMID: 30369100 DOI: 10.1002/adhm.201800954] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Revised: 10/01/2018] [Indexed: 02/03/2023]
Abstract
Photoresponsive hydrogels have become invaluable 3D culture matrices for mimicking aspects of the extracellular matrix. Recent efforts have focused on using ultraviolet (UV) light exposure and multifunctional macromers to induce secondary hydrogel crosslinking and dynamic matrix stiffening in the presence of cells. This contribution reports the design of a novel yet simple dynamic poly(ethylene glycol)-peptide hydrogel system through flavin mononucleotide (FMN) induced di-tyrosine crosslinking. These di-tyrosine linkages effectively increase hydrogel crosslinking density and elastic modulus. In addition, the degree of stiffening in hydrogels at a fixed PEG macromer content can be readily tuned by controlling FMN concentration or the number of tyrosine residues built-in to the peptide linker. Furthermore, tyrosine-bearing pendant biochemical motifs can be spatial-temporally patterned in the hydrogel network via controlling light exposure through a photomask. The visible light and FMN-induced tyrosine dimerization process produces a cytocompatible and physiologically relevant degree of stiffening, as shown by changes of cell morphology and gene expression in pancreatic cancer and stromal cells. This new dynamic hydrogel scheme should be highly desirable for researchers seeking a photoresponsive hydrogel system without complicated chemical synthesis and secondary UV light irradiation.
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Affiliation(s)
- Hung-Yi Liu
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN, 47907, USA
| | - Han D Nguyen
- Department of Biomedical Engineering, Purdue School of Engineering and Technology, Indiana University-Purdue University Indianapolis, Indianapolis, IN, 46202, USA
| | - Chien-Chi Lin
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN, 47907, USA
- Department of Biomedical Engineering, Purdue School of Engineering and Technology, Indiana University-Purdue University Indianapolis, Indianapolis, IN, 46202, USA
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Vincent-Mistiaen Z, Elbediwy A, Vanyai H, Cotton J, Stamp G, Nye E, Spencer-Dene B, Thomas GJ, Mao J, Thompson B. YAP drives cutaneous squamous cell carcinoma formation and progression. eLife 2018; 7:e33304. [PMID: 30231971 PMCID: PMC6147738 DOI: 10.7554/elife.33304] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Accepted: 06/29/2018] [Indexed: 01/14/2023] Open
Abstract
Squamous cell carcinoma (SCC) can progress to malignant metastatic cancer, including an aggressive subtype known as spindle cell carcinoma (spSCC). spSCC formation involves epithelial-to-mesenchymal transition (EMT), yet the molecular basis of this event remains unknown. The transcriptional co-activator YAP undergoes recurrent amplification in human SCC and overexpression of YAP drives SCC formation in mice. Here, we show that human spSCC tumours also feature strong nuclear localisation of YAP and overexpression of activated YAP (NLS-YAP-5SA) with Keratin-5 (K5-CreERt) is sufficient to induce rapid formation of both SCC and spSCC in mice. spSCC tumours arise at sites of epithelial scratch wounding, where tumour-initiating epithelial cells undergo EMT to generate spSCC. Expression of the EMT transcription factor ZEB1 arises upon wounding and is a defining characteristic of spSCC in mice and humans. Thus, the wound healing response synergises with YAP to drive metaplastic transformation of SCC to spSCC.
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Affiliation(s)
| | | | | | - Jennifer Cotton
- University of Massachusetts Medical SchoolWorcesterUnited States
| | | | - Emma Nye
- The Francis Crick InstituteLondonUnited Kingdom
| | | | - Gareth J Thomas
- Cancer Sciences Unit, Faculty of MedicineUniversity of SouthamptonSouthamptonUnited Kingdom
| | - Junhao Mao
- University of Massachusetts Medical SchoolWorcesterUnited States
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Miranda MM, Lowry WE. Hip to the Game: YAP/TAZ is required for nonmelanoma skin cancers. EMBO J 2018; 37:embj.201899921. [PMID: 30037822 DOI: 10.15252/embj.201899921] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Affiliation(s)
| | - William E Lowry
- Molecular Biology Institute, UCLA, Los Angeles, CA, USA.,Department of Molecular Cell and Developmental Biology, UCLA, Los Angeles, CA, USA.,Eli and Edythe Broad Center for Regenerative Medicine, UCLA, Los Angeles, CA, USA.,Jonsson Comprehensive Cancer Center, UCLA, Los Angeles, CA, USA
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