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Abstract
Cells take advantage of cross-talk in signaling pathways to integrate diverse signals and produce coordinated responses. In this issue of EMBO Reports, Jeong et al discover that the Wnt co-receptor, low-density lipoprotein (LDL) receptor-related protein LRP6, negatively regulates Hippo signaling by serving as a binding sink to sequester and inhibit Merlin, an activator of Hippo signaling (Jeong et al, 2020). This regulation is nutrient-responsive, likely using LRP6 O-GlcNAcylation as a molecular switch.
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Affiliation(s)
- Kenneth Kin Lam Wong
- Department of Molecular Biology and Biochemistry, Simon Fraser University, Burnaby, BC, Canada.,Centre for Cell Biology, Development and Disease, Simon Fraser University, Burnaby, BC, Canada
| | - Esther M Verheyen
- Department of Molecular Biology and Biochemistry, Simon Fraser University, Burnaby, BC, Canada.,Centre for Cell Biology, Development and Disease, Simon Fraser University, Burnaby, BC, Canada
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102
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Jeong W, Kim S, Lee U, Zhong ZA, Savitsky M, Kwon H, Kim J, Lee T, Cho JW, Williams BO, Katanaev VL, Jho EH. LDL receptor-related protein LRP6 senses nutrient levels and regulates Hippo signaling. EMBO Rep 2020; 21:e50103. [PMID: 32767654 DOI: 10.15252/embr.202050103] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2020] [Revised: 07/01/2020] [Accepted: 07/06/2020] [Indexed: 12/21/2022] Open
Abstract
Controlled cell growth and proliferation are essential for tissue homeostasis and development. Wnt and Hippo signaling are well known as positive and negative regulators of cell proliferation, respectively. The regulation of Hippo signaling by the Wnt pathway has been shown, but how and which components of Wnt signaling are involved in the activation of Hippo signaling during nutrient starvation are unknown. Here, we report that a reduction in the level of low-density lipoprotein receptor-related protein 6 (LRP6) during nutrient starvation induces phosphorylation and cytoplasmic localization of YAP, inhibiting YAP-dependent transcription. Phosphorylation of YAP via loss of LRP6 is mediated by large tumor suppressor kinases 1/2 (LATS1/2) and Merlin. We found that O-GlcNAcylation of LRP6 was reduced, and the overall amount of LRP6 was decreased via endocytosis-mediated lysosomal degradation during nutrient starvation. Merlin binds to LRP6; when LRP6 is less O-GlcNAcylated, Merlin dissociates from it and becomes capable of interacting with LATS1 to induce phosphorylation of YAP. Our data suggest that LRP6 has unexpected roles as a nutrient sensor and Hippo signaling regulator.
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Affiliation(s)
- Wonyoung Jeong
- Department of Life Science, University of Seoul, Seoul, Korea
| | - Soyoung Kim
- Department of Life Science, University of Seoul, Seoul, Korea
| | - Ukjin Lee
- Department of Life Science, University of Seoul, Seoul, Korea
| | - Zhendong A Zhong
- Center for Cancer and Cell Biology, Program for Skeletal Disease and Tumor Microenvironment, Van Andel Research Institute, Grand Rapids, MI, USA
| | - Mikhail Savitsky
- Faculty of Medicine, Department of Cell Physiology and Metabolism, Translational Research Centre in Oncohaematology, University of Geneva, Geneva, Switzerland
| | - Hyeryun Kwon
- Department of Life Science, University of Seoul, Seoul, Korea
| | - Jiyoung Kim
- Department of Life Science, University of Seoul, Seoul, Korea
| | - Taebok Lee
- Confocal Core Facility, Center for Medical Innovation, Seoul National University Hospital, Seoul, Korea
| | - Jin Won Cho
- Glycosylation Network Research Center, Yonsei University, Seoul, Korea
| | - Bart O Williams
- Center for Cancer and Cell Biology, Program for Skeletal Disease and Tumor Microenvironment, Van Andel Research Institute, Grand Rapids, MI, USA
| | - Vladimir L Katanaev
- Faculty of Medicine, Department of Cell Physiology and Metabolism, Translational Research Centre in Oncohaematology, University of Geneva, Geneva, Switzerland.,School of Biomedicine, Far Eastern Federal University, Vladivostok, Russia
| | - Eek-Hoon Jho
- Department of Life Science, University of Seoul, Seoul, Korea
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103
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Chu Y, Jiang M, Wu N, Xu B, Li W, Liu H, Su S, Shi Y, Liu H, Gao X, Fu X, Chen D, Li X, Wang W, Liang J, Nie Y, Fan D. O-GlcNAcylation of SIX1 enhances its stability and promotes Hepatocellular Carcinoma Proliferation. Am J Cancer Res 2020; 10:9830-9842. [PMID: 32863962 PMCID: PMC7449927 DOI: 10.7150/thno.45161] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Accepted: 06/17/2020] [Indexed: 12/14/2022] Open
Abstract
It is universally accepted that aberrant metabolism facilitates tumor growth. However, how cancer cells coordinate glucose metabolism and tumor proliferation is largely unknown. Sine oculis homeobox homolog 1 (SIX1) is a transcription factor that belongs to the SIX family and is believed to play an important role in the regulation of the Warburg effect in tumors. However, whether the role of SIX1 and the molecular mechanisms that regulate its activity are similar in hepatocellular carcinoma (HCC) still needs further investigation. Methods: Western blotting was performed to determine the levels of SIX1 and O-linked β-N-acetylglucosaminylation (O-GlcNAcylation) in HCC tissues. Cell Counting Kit 8 (CCK8), colony formation and mouse tumor model assays were used to establish the role of SIX1 and O-GlcNAcylation in HCC processes. Mass spectrometry, immunoprecipitation and site-directed mutagenesis were performed to confirm the O-GlcNAcylation of SIX1. Results: Here, we demonstrated that SIX1, the key transcription factor regulating the Warburg effect in cancer, promotes HCC growth in vitro and in vivo. Furthermore, we revealed that SIX1 could also enhance the levels of a posttranslational modification called O-GlcNAcylation. Importantly, we found that SIX1 was also highly modified by O-GlcNAcylation and that O-GlcNAcylation inhibited the ubiquitination degradation of SIX1. In addition, site-directed mutagenesis at position 276 (T276A) decreased the O-GlcNAcylation level and reversed the protumor effect of SIX1. Conclusions: We conclude that O-GlcNAcylation of SIX1 enhances its stability and promotes HCC proliferation. Our findings illustrate a novel feedback loop of SIX1 and O-GlcNAcylation and show that O-GlcNAcylation of SIX1 is an important way to coordinate glucose metabolism and tumor progression.
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104
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Chatham JC, Zhang J, Wende AR. Role of O-Linked N-Acetylglucosamine Protein Modification in Cellular (Patho)Physiology. Physiol Rev 2020; 101:427-493. [PMID: 32730113 DOI: 10.1152/physrev.00043.2019] [Citation(s) in RCA: 157] [Impact Index Per Article: 39.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
In the mid-1980s, the identification of serine and threonine residues on nuclear and cytoplasmic proteins modified by a N-acetylglucosamine moiety (O-GlcNAc) via an O-linkage overturned the widely held assumption that glycosylation only occurred in the endoplasmic reticulum, Golgi apparatus, and secretory pathways. In contrast to traditional glycosylation, the O-GlcNAc modification does not lead to complex, branched glycan structures and is rapidly cycled on and off proteins by O-GlcNAc transferase (OGT) and O-GlcNAcase (OGA), respectively. Since its discovery, O-GlcNAcylation has been shown to contribute to numerous cellular functions, including signaling, protein localization and stability, transcription, chromatin remodeling, mitochondrial function, and cell survival. Dysregulation in O-GlcNAc cycling has been implicated in the progression of a wide range of diseases, such as diabetes, diabetic complications, cancer, cardiovascular, and neurodegenerative diseases. This review will outline our current understanding of the processes involved in regulating O-GlcNAc turnover, the role of O-GlcNAcylation in regulating cellular physiology, and how dysregulation in O-GlcNAc cycling contributes to pathophysiological processes.
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Affiliation(s)
- John C Chatham
- Division of Molecular and Cellular Pathology, Department of Pathology, University of Alabama at Birmingham, Birmingham, Alabama; and Birmingham Veterans Affairs Medical Center, Birmingham, Alabama
| | - Jianhua Zhang
- Division of Molecular and Cellular Pathology, Department of Pathology, University of Alabama at Birmingham, Birmingham, Alabama; and Birmingham Veterans Affairs Medical Center, Birmingham, Alabama
| | - Adam R Wende
- Division of Molecular and Cellular Pathology, Department of Pathology, University of Alabama at Birmingham, Birmingham, Alabama; and Birmingham Veterans Affairs Medical Center, Birmingham, Alabama
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105
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Abstract
The heart requires a high amount of energy, in the form of adenosine triphosphate, to maintain its viability and pump function. Anaerobic glycolysis and mitochondrial oxidative phosphorylation are the two main metabolic pathways by which adenosine triphosphate is generated, using fatty acids, glucose, lactate, and ketone bodies as primary substrates. Previous studies have demonstrated that, in response to stress, the heart undergoes alterations in metabolism, ranging from changes in substrate utilization to mitochondrial function, collectively called metabolic remodeling. However, the molecular mechanism mediating metabolic remodeling in the heart remains unclear. Yes-associated protein 1 (YAP) and transcriptional coactivator with PDZ-binding motif (TAZ), which are major downstream effectors of the Hippo signaling pathway, play an important role in the regulation of heart size and cellular homeostasis of cardiomyocytes through the regulation of various transcriptional factors under both physiological and pathophysiological conditions. Recent findings in various organs and cell types have revealed that YAP and TAZ play an important role in energy metabolism. Here, we summarize what is currently known about YAP/TAZ in the regulation of metabolism of various substrates and mitochondrial function in various organs and cell types and discuss the potential role of YAP/TAZ in mediating metabolic remodeling of the heart during stress and heart failure.
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106
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OGT knockdown counteracts high phosphate-induced vascular calcification in chronic kidney disease through autophagy activation by downregulating YAP. Life Sci 2020; 261:118121. [PMID: 32693242 DOI: 10.1016/j.lfs.2020.118121] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Revised: 06/29/2020] [Accepted: 07/15/2020] [Indexed: 02/05/2023]
Abstract
AIMS Pathological vascular calcification (VC), a major risk factor for cardiovascular mortality, is a highly prevalent finding in patients with chronic kidney disease (CKD). We previously analyzed several pathways protecting against high phosphate-induced VC through induction of autophagy. Here, we explored how O-GlcNAc transferase (OGT) affected high phosphate-induced VC of CKD though mediation of autophagy. MAIN METHODS In the rats with CKD induced by 5/6 nephrectomy, the VC process was accelerated by a high phosphate diet. The calcification of vascular smooth muscle cells (VSMCs) was induced by high phosphate treatment. We then experimentally tested the effect of OGT on high phosphate-induced VC by conducting loss-of-function experiments. Co-immunoprecipitation and GST pull-down assays were performed to evaluate interaction between OGT and Yes-associated protein (YAP). In mechanistic studies of this pathway, we measured autophagy protein expression and autophagosome formation, as well as calcium deposition and calcium content in VSMCs and in vivo in response to altered expression of OGT and/or YAP. KEY FINDINGS OGT was up-regulated in high phosphate-induced VC models in vitro and in vivo. High phosphate-induced calcification in the rat aorta and VSMCs were suppressed by OGT silencing. OGT promoted the glycosylation of YAP to enhance its stability. Importantly, over-expressing YAP reduced autophagy and OGT expedited high phosphate-induced VC by inhibiting autophagy through upregulation of YAP. SIGNIFICANCE OGT silencing downregulated YAP to induce autophagy activation, thus suppressing high phosphate-induced VC, which highlighted a promising preventive target against high phosphate-induced VC in CKD.
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107
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Li S, Zhu H, Chen H, Xia J, Zhang F, Xu R, Lin Q. Glucose promotes epithelial-mesenchymal transitions in bladder cancer by regulating the functions of YAP1 and TAZ. J Cell Mol Med 2020; 24:10391-10401. [PMID: 32678516 PMCID: PMC7521329 DOI: 10.1111/jcmm.15653] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2019] [Revised: 05/07/2020] [Accepted: 06/30/2020] [Indexed: 12/29/2022] Open
Abstract
Glucose levels and type 2 diabetes (T2D) are both associated with tumorigenesis and epithelial‐mesenchymal transitions (EMTs). EMTs facilitate bladder cancer (BC) metastasis development, but the mechanism by which high‐glucose levels promote these EMTs in BC remains unclear. Therefore, we sought to elucidate the mechanism underlying EMT promotion due to increased glucose levels. T24 and UMUC‐3 cells were cultured in media containing different glucose concentrations. YAP1, TAZ, GLUT1 and EMT‐associated marker expression was analysed via Western blotting and qPCR. BC cell proliferation and invasion were assessed using MTT and Transwell assays, respectively. A xenograft nude mouse model of diabetes was used to evaluate tumour growth and metastasis in vivo. T2D was positively associated with pathologic grade (P = .016) and TNM stage (P < .001) in BC. High glucose triggered BC cell proliferation and invasion in both in vitro and in vivo conditions. High‐glucose levels also promoted EMTs in BC cells and increased YAP1 and TAZ expression. YAP1 or TAZ knockdown altered EMT marker expression and decreased GLUT1 expression. Overall, our results suggest that high‐glucose levels promote EMTs in BC cells via YAP1 and TAZ regulation. These effector molecules may be promising therapeutic targets for BC cases comorbid with T2D.
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Affiliation(s)
- Shi Li
- Department of Urology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Hua Zhu
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Hongde Chen
- Department of Urology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Jianling Xia
- Cancer Center, Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital, Hospital of the University of Electronic Science and Technology of China, Chengdu, China
| | - Fangyi Zhang
- Department of Urology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Ruoting Xu
- Department of Neurology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Qi Lin
- Department of Urology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
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108
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Hashimoto E, Okuno S, Hirayama S, Arata Y, Goto T, Kosako H, Hamazaki J, Murata S. Enhanced O-GlcNAcylation Mediates Cytoprotection under Proteasome Impairment by Promoting Proteasome Turnover in Cancer Cells. iScience 2020; 23:101299. [PMID: 32634741 PMCID: PMC7338785 DOI: 10.1016/j.isci.2020.101299] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 01/27/2020] [Accepted: 06/16/2020] [Indexed: 12/11/2022] Open
Abstract
The proteasome is a therapeutic target in cancer, but resistance to proteasome inhibitors often develops owing to the induction of compensatory pathways. Through a genome-wide siRNA screen combined with RNA sequencing analysis, we identified hexokinase and downstream O-GlcNAcylation as cell survival factors under proteasome impairment. The inhibition of O-GlcNAcylation synergistically induced massive cell death in combination with proteasome inhibition. We further demonstrated that O-GlcNAcylation was indispensable for maintaining proteasome activity by enhancing biogenesis as well as proteasome degradation in a manner independent of Nrf1, a well-known compensatory transcription factor that upregulates proteasome gene expression. Our results identify a pathway that maintains proteasome function under proteasome impairment, providing potential targets for cancer therapy. O-GlcNAcylation suppresses cell death under proteasome impairment Combined inhibition of O-GlcNAcylation and proteasome induces massive tumor cell death O-GlcNAcylation maintains proteasome activity independently of Nrf1 O-GlcNAcylation enhances proteasome turnover under the proteasome impairment
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Affiliation(s)
- Eiichi Hashimoto
- Laboratory of Protein Metabolism, Graduate School of Pharmaceutical Sciences, the University of Tokyo, Bunkyo-ku, Tokyo 1130033, Japan
| | - Shota Okuno
- Laboratory of Protein Metabolism, Graduate School of Pharmaceutical Sciences, the University of Tokyo, Bunkyo-ku, Tokyo 1130033, Japan
| | - Shoshiro Hirayama
- Laboratory of Protein Metabolism, Graduate School of Pharmaceutical Sciences, the University of Tokyo, Bunkyo-ku, Tokyo 1130033, Japan
| | - Yoshiyuki Arata
- Laboratory of Protein Metabolism, Graduate School of Pharmaceutical Sciences, the University of Tokyo, Bunkyo-ku, Tokyo 1130033, Japan
| | - Tsuyoshi Goto
- Laboratory of Protein Metabolism, Graduate School of Pharmaceutical Sciences, the University of Tokyo, Bunkyo-ku, Tokyo 1130033, Japan
| | - Hidetaka Kosako
- Division of Cell Signaling, Fujii Memorial Institute of Medical Sciences, Tokushima University, Kuramoto-cho, Tokushima 7708503, Japan
| | - Jun Hamazaki
- Laboratory of Protein Metabolism, Graduate School of Pharmaceutical Sciences, the University of Tokyo, Bunkyo-ku, Tokyo 1130033, Japan
| | - Shigeo Murata
- Laboratory of Protein Metabolism, Graduate School of Pharmaceutical Sciences, the University of Tokyo, Bunkyo-ku, Tokyo 1130033, Japan.
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109
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Chakladar J, Wong LM, Kuo SZ, Li WT, Yu MA, Chang EY, Wang XQ, Ongkeko WM. The Liver Microbiome Is Implicated in Cancer Prognosis and Modulated by Alcohol and Hepatitis B. Cancers (Basel) 2020; 12:cancers12061642. [PMID: 32575865 PMCID: PMC7353057 DOI: 10.3390/cancers12061642] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 06/18/2020] [Accepted: 06/19/2020] [Indexed: 12/16/2022] Open
Abstract
Hepatocellular carcinoma (HCC) is one of the deadliest cancers in the world. Previous studies have identified the importance of alcohol and hepatitis B (HBV) infection on HCC carcinogenesis, indicating synergy in the methods by which these etiologies advance cancer. However, the specific molecular mechanism behind alcohol and HBV-mediated carcinogenesis remains unknown. Because the microbiome is emerging as a potentially important regulator of cancer development, this study aims to classify the effects of HBV and alcohol on the intratumoral liver microbiome. RNA-sequencing data from The Cancer Genome Atlas (TCGA) were used to infer microbial abundance. This abundance was then correlated to clinical variables and to cancer and immune-associated gene expression, in order to determine how microbial abundance may contribute to differing cancer progression between etiologies. We discovered that the liver microbiome is likely oncogenic after exposure to alcohol or HBV, although these etiological factors could decrease the abundance of a few oncogenic microbes, which would lead to a tumor suppressive effect. In HBV-induced tumors, this tumor suppressive effect was inferred based on the downregulation of microbes that induce cancer and stem cell pathways. Alcohol-induced tumors were observed to have distinct microbial profiles from HBV-induced tumors, and different microbes are clinically relevant in each cohort, suggesting that the effects of the liver microbiome may be different in response to different etiological factors. Collectively, our data suggest that HBV and alcohol operate within a normally oncogenic microbiome to promote tumor development, but are also able to downregulate certain oncogenic microbes. Insight into why these microbes are downregulated following exposure to HBV or alcohol, and why the majority of oncogenic microbes are not downregulated, may be critical for understanding whether a pro-tumor liver microbiome could be suppressed or reversed to limit cancer progression.
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Affiliation(s)
- Jaideep Chakladar
- Division of Otolaryngology-Head and Neck Surgery, Department of Surgery, University of California San Diego, La Jolla, CA 92093, USA; (J.C.); (L.M.W.); (W.T.L.)
- Research Service, VA San Diego Healthcare System, San Diego, CA 92161, USA
| | - Lindsay M. Wong
- Division of Otolaryngology-Head and Neck Surgery, Department of Surgery, University of California San Diego, La Jolla, CA 92093, USA; (J.C.); (L.M.W.); (W.T.L.)
- Research Service, VA San Diego Healthcare System, San Diego, CA 92161, USA
| | - Selena Z. Kuo
- Department of Medicine, Columbia University Medical Center, New York, NY 10032, USA;
| | - Wei Tse Li
- Division of Otolaryngology-Head and Neck Surgery, Department of Surgery, University of California San Diego, La Jolla, CA 92093, USA; (J.C.); (L.M.W.); (W.T.L.)
- Research Service, VA San Diego Healthcare System, San Diego, CA 92161, USA
| | - Michael Andrew Yu
- Department of Internal Medicine, Emory University School of Medicine, Atlanta, GA 30322, USA;
| | - Eric Y. Chang
- Department of Radiology, University of California, San Diego, CA 92093, USA;
- Radiology Service, VA San Diego Healthcare System, San Diego, CA 92161, USA
| | - Xiao Qi Wang
- Department of Biomedical Sciences, College of Medicine, Florida State University, Tallahassee, FL 32306, USA;
| | - Weg M. Ongkeko
- Division of Otolaryngology-Head and Neck Surgery, Department of Surgery, University of California San Diego, La Jolla, CA 92093, USA; (J.C.); (L.M.W.); (W.T.L.)
- Research Service, VA San Diego Healthcare System, San Diego, CA 92161, USA
- Correspondence: ; Tel.: +1-(858)-552-8585 (ext. 7165)
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110
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Yamaguchi H, Taouk GM. A Potential Role of YAP/TAZ in the Interplay Between Metastasis and Metabolic Alterations. Front Oncol 2020; 10:928. [PMID: 32596154 PMCID: PMC7300268 DOI: 10.3389/fonc.2020.00928] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Accepted: 05/12/2020] [Indexed: 12/14/2022] Open
Abstract
Yes-Associated Protein (YAP) and Transcriptional Co-activator with PDZ-binding Motif (TAZ) are the downstream effectors of the Hippo signaling pathway that play a crucial role in various aspects of cancer progression including metastasis. Metastasis is the multistep process of disseminating cancer cells in a body and responsible for the majority of cancer-related death. Emerging evidence has shown that cancer cells reprogram their metabolism to gain proliferation, invasion, migration, and anti-apoptotic abilities and adapt to various environment during metastasis. Moreover, it has increasingly been recognized that YAP/TAZ regulates cellular metabolism that is associated with the phenotypic changes, and recent studies suggest that the YAP/TAZ-mediated metabolic alterations contribute to metastasis. In this review, we will introduce the latest knowledge of YAP/TAZ regulation and function in cancer metastasis and metabolism, and discuss possible links between the YAP/TAZ-mediated metabolic reprogramming and metastasis.
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Affiliation(s)
- Hirohito Yamaguchi
- Cancer Research Center, College of Health and Life Sciences, Qatar Biomedical Research Institute (QBRI), Hamad Bin Khalifa University (HBKU), Qatar Foundation (QF), Doha, Qatar
| | - Ghina M Taouk
- Cancer Research Center, College of Health and Life Sciences, Qatar Biomedical Research Institute (QBRI), Hamad Bin Khalifa University (HBKU), Qatar Foundation (QF), Doha, Qatar
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111
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Abstract
The Hippo pathway plays a crucial role in maintaining tissue homeostasis. Generally, activated Hippo pathway effectors, YAP/TAZ, induce the transcription of their negative regulators, NF2 and LATS2, and this negative feedback loop maintains homeostasis of the Hippo pathway. However, YAP and TAZ are consistently hyperactivated in various cancer cells, enhancing tumor growth. Our study found that LATS2, a direct-inhibiting kinase of YAP/TAZ and a core component of the negative feedback loop in the Hippo pathway, is modified with O-GlcNAc. LATS2 O-GlcNAcylation inhibited its activity by interrupting the interaction with the MOB1 adaptor protein, thereby activating YAP and TAZ to promote cell proliferation. Thus, our study suggests that LATS2 O-GlcNAcylation is deeply involved in Hippo pathway dysregulation in cancer cells. The Hippo pathway controls organ size and tissue homeostasis by regulating cell proliferation and apoptosis. The LATS-mediated negative feedback loop prevents excessive activation of the effectors YAP/TAZ, maintaining homeostasis of the Hippo pathway. YAP and TAZ are hyperactivated in various cancer cells which lead to tumor growth. Aberrantly increased O-GlcNAcylation has recently emerged as a cause of hyperactivation of YAP in cancer cells. However, the mechanism, which induces hyperactivation of TAZ and blocks LATS-mediated negative feedback, remains to be elucidated in cancer cells. This study found that in breast cancer cells, abnormally increased O-GlcNAcylation hyperactivates YAP/TAZ and inhibits LATS2, a direct negative regulator of YAP/TAZ. LATS2 is one of the newly identified O-GlcNAcylated components in the MST-LATS kinase cascade. Here, we found that O-GlcNAcylation at LATS2 Thr436 interrupted its interaction with the MOB1 adaptor protein, which connects MST to LATS2, leading to activation of YAP/TAZ by suppressing LATS2 kinase activity. LATS2 is a core component in the LATS-mediated negative feedback loop. Thus, this study suggests that LATS2 O-GlcNAcylation is deeply involved in tumor growth by playing a critical role in dysregulation of the Hippo pathway in cancer cells.
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112
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Zhang T, Gong Y, Meng H, Li C, Xue L. Symphony of epigenetic and metabolic regulation-interaction between the histone methyltransferase EZH2 and metabolism of tumor. Clin Epigenetics 2020; 12:72. [PMID: 32448308 PMCID: PMC7245796 DOI: 10.1186/s13148-020-00862-0] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2020] [Accepted: 05/12/2020] [Indexed: 12/20/2022] Open
Abstract
Increasing evidence has suggested that epigenetic and metabolic alterations in cancer cells are highly intertwined. As the master epigenetic regulator, enhancer of zeste homolog 2 (EZH2) suppresses gene transcription mainly by catalyzing the trimethylation of histone H3 at lysine 27 (H3K27me3) and exerts highly enzymatic activity in cancer cells. Cancer cells undergo the profound metabolic reprogramming and manifest the distinct metabolic profile. The emerging studies have explored that EZH2 is involved in altering the metabolic profiles of tumor cells by multiple pathways, which cover glucose, lipid, and amino acid metabolism. Meanwhile, the stability and methyltransferase activity of EZH2 can be also affected by the metabolic activity of tumor cells through various mechanisms, including post-translational modification. In this review, we have summarized the correlation between EZH2 and cellular metabolic activity during tumor progression and drug treatment. Finally, as a promising target, we proposed a novel strategy through a combination of EZH2 inhibitors with metabolic regulators for future cancer therapy.
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Affiliation(s)
- Tengrui Zhang
- Center of Basic Medical Research, Peking University Third Hospital, Institute of Medical Innovation and Research, 49 North Garden Road, Haidian District, Beijing, 100191 China
| | - Yueqing Gong
- Center of Basic Medical Research, Peking University Third Hospital, Institute of Medical Innovation and Research, 49 North Garden Road, Haidian District, Beijing, 100191 China
| | - Hui Meng
- Center of Basic Medical Research, Peking University Third Hospital, Institute of Medical Innovation and Research, 49 North Garden Road, Haidian District, Beijing, 100191 China
| | - Chen Li
- Center of Basic Medical Research, Peking University Third Hospital, Institute of Medical Innovation and Research, 49 North Garden Road, Haidian District, Beijing, 100191 China
| | - Lixiang Xue
- Center of Basic Medical Research, Peking University Third Hospital, Institute of Medical Innovation and Research, 49 North Garden Road, Haidian District, Beijing, 100191 China
- Department of Radiation Oncology, Peking University Third Hospital, Beijing, 100191 China
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113
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Zhong ZW, Zhou WC, Sun XF, Wu QC, Chen WK, Miao CH. Dezocine regulates the malignant potential and aerobic glycolysis of liver cancer targeting Akt1/GSK-3β pathway. ANNALS OF TRANSLATIONAL MEDICINE 2020; 8:480. [PMID: 32395524 PMCID: PMC7210161 DOI: 10.21037/atm.2020.03.28] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Background Due to the “ceiling effect” of respiratory depression and the non-addictiveness, the consumption of dezocine is increasing quickly in the cancer surgery perioperative period for security and comfort reasons in China. Former studies find dezocine inhibits the norepinephrine transporters (NET) and serotonin transporters (SERT) and sigma-1opioid receptors. Given the complexity of the molecular mechanism, the effect of dezocine on tumor cells need to be studied. In this study, we investigated the effect of dezocine on HepG2 and Hep 3B liver cancer cell lines growth and glycolysis, and the molecular mechanisms behind. Methods HepG2 and Hep 3B cells viability and migration were measured by CCK8, Wound healing and transwell assay, Extracellular acidification rate (ECAR) was used to index the aerobic glycolysis of liver cancer cells and western blot analysis showed protein expression levels in the cells. SC79, an agonist of Akt, and the siRNA silence of Akt1 aimed to regulate Akt1 activity and expression in the reverse experiments. Results Dezocine played opposite roles in HepG2 and Hep 3B cells viability and migration in a concentration-dependent manner (P<0.01). Dezocine has diverse effects on aerobic glycolysis and adjusts the serine/threonine kinase 1 (Akt1)-glycogen synthase kinase-3β (GSK-3β) pathway. The effects of SC79 and the siRNA silence of Akt1 could reverse the effects of dezocine on HepG2 and Hep 3B cells. Conclusions As an analgesic drug widely used in clinical practice, dezocine play reversed roles on HepG2 and Hep 3B cells viability and migration targeting Akt1/GSK-3β pathway then the glycolysis in a concentration-dependent manner.
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Affiliation(s)
- Zi-Wen Zhong
- Department of Anesthesiology, Fudan University Shanghai Cancer Center, Shanghai 200032, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China.,Department of Anesthesiology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Wen-Chang Zhou
- Department of Anesthesiology, Fudan University Shanghai Cancer Center, Shanghai 200032, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China.,Department of Anesthesiology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Xing-Feng Sun
- Department of Anesthesiology, Fudan University Shanghai Cancer Center, Shanghai 200032, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China.,Department of Anesthesiology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Qi-Chao Wu
- Department of Anesthesiology, Fudan University Shanghai Cancer Center, Shanghai 200032, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China.,Department of Anesthesiology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Wan-Kun Chen
- Department of Anesthesiology, Fudan University Shanghai Cancer Center, Shanghai 200032, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China.,Department of Anesthesiology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Chang-Hong Miao
- Department of Anesthesiology, Fudan University Shanghai Cancer Center, Shanghai 200032, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China.,Department of Anesthesiology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
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114
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Wang J, Wang Z, Yuan J, Wang J, Shen X. The positive feedback between ACSL4 expression and O-GlcNAcylation contributes to the growth and survival of hepatocellular carcinoma. Aging (Albany NY) 2020; 12:7786-7800. [PMID: 32357142 PMCID: PMC7244051 DOI: 10.18632/aging.103092] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Accepted: 04/13/2020] [Indexed: 06/01/2023]
Abstract
Acyl-CoA ligase 4 (ACSL4) has been reported to be overexpressed in hepatocellular carcinoma (HCC) and to enhance cell proliferation. However, the molecular mechanisms underlying the role of ACSL4 in HCC progression remain largely unclear. Here, we aimed to investigate whether and how O-GlcNAcylation and ACSL4 regulate each other and HCC progression. The clinical significance of ACSL4, O-GlcNAc and GLUT1 in HCC was determined by Pearson chi-squared test and Kaplan-Meier analysis. CCK-8, flow cytometry and in vivo tumour formation assays were performed to detect cell proliferation, apoptosis and tumorigenesis. IP technology was used to evaluate the relationship between ACSL4 and O-GlcNAc. ACSL4, GLUT1 and O-GlcNAc levels were elevated in HCC tissues and predicted poor prognosis in HCC patients. ACSL4 overexpression significantly promoted cell proliferation and tumorigenesis and inhibited cell apoptosis, whereas these effects were all obviously impaired when mTOR signalling was repressed or GLUT1 was downregulated. ACSL4 could be O-GlcNAcylated, and silencing of ACSL4 abolished the effects of O-GlcNAcylation on cell growth promotion and apoptosis inhibition. Collectively, this study demonstrates that ACSL4 contributes to the growth and survival of HCC by enhancing GLUT1-mediated O-GlcNAcylation. In turn, O-GlcNAcylation promotes HCC growth partially by increasing ACSL4 expression.
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Affiliation(s)
- Jiachen Wang
- Department of Minimally Invasive Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, China
| | - Zhao Wang
- Department of Minimally Invasive Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, China
| | - Jiaxiang Yuan
- Department of Minimally Invasive Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, China
| | - Jiaxiang Wang
- Department of Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, China
| | - Xinsheng Shen
- Department of Minimally Invasive Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, China
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115
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Chen X, Li Y, Luo J, Hou N. Molecular Mechanism of Hippo-YAP1/TAZ Pathway in Heart Development, Disease, and Regeneration. Front Physiol 2020; 11:389. [PMID: 32390875 PMCID: PMC7191303 DOI: 10.3389/fphys.2020.00389] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Accepted: 04/01/2020] [Indexed: 01/20/2023] Open
Abstract
The Hippo-YAP1/TAZ pathway is a highly conserved central mechanism that controls organ size through the regulation of cell proliferation and other physical attributes of cells. The transcriptional factors Yes-associated protein 1 (YAP1) and PDZ-binding motif (TAZ) act as downstream effectors of the Hippo pathway, and their subcellular location and transcriptional activities are affected by multiple post-translational modifications (PTMs). Studies have conclusively demonstrated a pivotal role of the Hippo-YAP1/TAZ pathway in cardiac development, disease, and regeneration. Targeted therapeutics for the YAP1/TAZ could be an effective treatment option for cardiac regeneration and disease. This review article provides an overview of the Hippo-YAP1/TAZ pathway and the increasing impact of PTMs in fine-tuning YAP1/TAZ activation; in addition, we discuss the potential contributions of the Hippo-YAP1/TAZ pathway in cardiac development, disease, and regeneration.
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Affiliation(s)
- Xiaoqing Chen
- Key Laboratory of Molecular Target & Clinical Pharmacology, School of Pharmaceutical Sciences and the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, China.,Guangzhou Institute of Cardiovascular Disease, Guangzhou Key Laboratory of Cardiovascular Disease, and The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Yilang Li
- Key Laboratory of Molecular Target & Clinical Pharmacology, School of Pharmaceutical Sciences and the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, China.,Guangzhou Institute of Cardiovascular Disease, Guangzhou Key Laboratory of Cardiovascular Disease, and The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Jiandong Luo
- Key Laboratory of Molecular Target & Clinical Pharmacology, School of Pharmaceutical Sciences and the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, China.,Guangzhou Institute of Cardiovascular Disease, Guangzhou Key Laboratory of Cardiovascular Disease, and The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Ning Hou
- Key Laboratory of Molecular Target & Clinical Pharmacology, School of Pharmaceutical Sciences and the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, China.,Guangzhou Institute of Cardiovascular Disease, Guangzhou Key Laboratory of Cardiovascular Disease, and The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
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116
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Di Caprio N, Bellas E. Collagen Stiffness and Architecture Regulate Fibrotic Gene Expression in Engineered Adipose Tissue. ACTA ACUST UNITED AC 2020; 4:e1900286. [PMID: 32529801 DOI: 10.1002/adbi.201900286] [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: 12/05/2019] [Revised: 02/24/2020] [Accepted: 03/20/2020] [Indexed: 12/11/2022]
Abstract
Adipose tissue (AT) has a dynamic extracellular matrix (ECM) surrounding adipocytes that allows for remodeling during metabolic fluctuations. During the progression of obesity, AT has increased ECM deposition, stiffening, and remodeling, resulting in a pro-fibrotic dysfunctional state. Here, the incorporation of ethylene glycol-bis-succinic acid N-hydroxysuccinimide ester (PEGDS) allows for control over 3D collagen hydrogel stiffness and architecture to investigate its influence on adipocyte metabolic and fibrotic function. Upon stiffening and altering ECM architecture, adipocytes did not alter their expression of key adipokines, leptin, and adiponectin. However, they do increase actin cytoskeletal fiber formation, pro-fibrotic gene expression, ECM deposition, and remodeling within a stiffer, 3D collagen hydrogel. For example, COL6A3 gene expression is upregulated approximately twofold, resulting in increased deposition of pericellular collagen VI alpha 3 surrounding adipocytes. Furthermore, inhibition of actin contractility results in a reversal of pro-fibrotic gene expression and ECM deposition, indicating that adipocytes are mediating mechanical cues through actin cytoskeletal networks. This study demonstrates that ECM stiffness and architecture plays a critical regulatory role in adipocyte fibrotic function and contributes to the overall pro-fibrotic dysfunctional state of AT during the progression of obesity and AT fibrosis.
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Affiliation(s)
- Nikolas Di Caprio
- Department of Bioengineering, Temple University, 1947 N. 12th St, Philadelphia, PA, 19122, USA
| | - Evangelia Bellas
- Department of Bioengineering, Temple University, 1947 N. 12th St, Philadelphia, PA, 19122, USA
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117
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Zou R, Xu Y, Feng Y, Shen M, Yuan F, Yuan Y. YAP nuclear‐cytoplasmic translocation is regulated by mechanical signaling, protein modification, and metabolism. Cell Biol Int 2020; 44:1416-1425. [DOI: 10.1002/cbin.11345] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Revised: 02/12/2020] [Accepted: 03/17/2020] [Indexed: 12/14/2022]
Affiliation(s)
- Rong Zou
- Department of Ophthalmology, Zhongshan HospitalFudan University 180# Fenglin Road 200032 Shanghai China
| | - Yahui Xu
- Department of Ophthalmology, Zhongshan HospitalFudan University 180# Fenglin Road 200032 Shanghai China
| | - Yifan Feng
- Department of Ophthalmology, Zhongshan HospitalFudan University 180# Fenglin Road 200032 Shanghai China
| | - Minqian Shen
- Department of Ophthalmology, Zhongshan HospitalFudan University 180# Fenglin Road 200032 Shanghai China
| | - Fei Yuan
- Department of Ophthalmology, Zhongshan HospitalFudan University 180# Fenglin Road 200032 Shanghai China
| | - Yuanzhi Yuan
- Department of Ophthalmology, Zhongshan HospitalFudan University 180# Fenglin Road 200032 Shanghai China
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118
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Chi F, Sharpley MS, Nagaraj R, Roy SS, Banerjee U. Glycolysis-Independent Glucose Metabolism Distinguishes TE from ICM Fate during Mammalian Embryogenesis. Dev Cell 2020; 53:9-26.e4. [PMID: 32197068 DOI: 10.1016/j.devcel.2020.02.015] [Citation(s) in RCA: 93] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 11/26/2019] [Accepted: 02/19/2020] [Indexed: 01/01/2023]
Abstract
The mouse embryo undergoes compaction at the 8-cell stage, and its transition to 16 cells generates polarity such that the outer apical cells are trophectoderm (TE) precursors and the inner cell mass (ICM) gives rise to the embryo. Here, we report that this first cell fate specification event is controlled by glucose. Glucose does not fuel mitochondrial ATP generation, and glycolysis is dispensable for blastocyst formation. Furthermore, glucose does not help synthesize amino acids, fatty acids, and nucleobases. Instead, glucose metabolized by the hexosamine biosynthetic pathway (HBP) allows nuclear localization of YAP1. In addition, glucose-dependent nucleotide synthesis by the pentose phosphate pathway (PPP), along with sphingolipid (S1P) signaling, activates mTOR and allows translation of Tfap2c. YAP1, TEAD4, and TFAP2C interact to form a complex that controls TE-specific gene transcription. Glucose signaling has no role in ICM specification, and this process of developmental metabolism specifically controls TE cell fate.
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Affiliation(s)
- Fangtao Chi
- Department of Molecular, Cell and Developmental Biology, University of California, Los Angeles, Los Angeles, CA 90095, USA; Molecular Biology Institute, University of California, Los Angeles, Los Angeles, CA 90095, USA; Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Mark S Sharpley
- Department of Molecular, Cell and Developmental Biology, University of California, Los Angeles, Los Angeles, CA 90095, USA.
| | - Raghavendra Nagaraj
- Department of Molecular, Cell and Developmental Biology, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Shubhendu Sen Roy
- Department of Molecular, Cell and Developmental Biology, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Utpal Banerjee
- Department of Molecular, Cell and Developmental Biology, University of California, Los Angeles, Los Angeles, CA 90095, USA; Molecular Biology Institute, University of California, Los Angeles, Los Angeles, CA 90095, USA; Department of Biological Chemistry, University of California, Los Angeles, Los Angeles, CA 90095, USA; Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research, University of California, Los Angeles, Los Angeles, CA 90095, USA.
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119
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Sayedyahossein S, Hedman AC, Sacks DB. Insulin suppresses transcriptional activity of yes-associated protein in insulin target cells. Mol Biol Cell 2020; 31:131-141. [PMID: 31693448 PMCID: PMC6960410 DOI: 10.1091/mbc.e19-04-0205] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
Yes-associated protein (YAP), the main transcriptional coactivator of the Hippo pathway, integrates multiple inputs from different signaling cascades. Evidence implicates YAP in the control of cellular nutrient and energy status, but the underlying mechanisms are not fully elucidated. Here we show that insulin modulates YAP transcriptional activity in classic insulin target cells, namely HepG2 and C2C12. Insulin increases YAP phosphorylation and significantly decreases YAP abundance in HepG2 cell nuclei. Proximity ligation assay analysis revealed a marked reduction in the interaction of YAP with TEA domain (TEAD) transcription factors in the nuclei of insulin-exposed cells. Consistent with these findings, insulin impaired both YAP/TEAD-mediated transcription and transcription of YAP target genes in HepG2 and C2C12 cells. Serum starvation abrogated the effect of insulin on YAP phosphorylation and YAP transcription. Both the expression of two gluconeogenesis genes, G6PC and PCK1, and the inhibitory effect of insulin on these genes were attenuated in YAP-deficient HepG2 cells. Our results identify insulin as a previously undescribed suppressor of YAP activity in insulin target cells and provide insight into cross-talk between the insulin and Hippo pathways.
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Affiliation(s)
- Samar Sayedyahossein
- Department of Laboratory Medicine, National Institutes of Health, Bethesda, MD 20892
| | - Andrew C Hedman
- Department of Laboratory Medicine, National Institutes of Health, Bethesda, MD 20892
| | - David B Sacks
- Department of Laboratory Medicine, National Institutes of Health, Bethesda, MD 20892
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120
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The nutrient sensor OGT regulates Hipk stability and tumorigenic-like activities in Drosophila. Proc Natl Acad Sci U S A 2020; 117:2004-2013. [PMID: 31932432 PMCID: PMC6994980 DOI: 10.1073/pnas.1912894117] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Environmental cues such as nutrients alter cellular behaviors by acting on a wide array of molecular sensors inside cells. Of emerging interest is the link observed between effects of dietary sugars on cancer proliferation. Here, we identify the requirements of hexosamine biosynthetic pathway (HBP) and O-GlcNAc transferase (OGT) for Drosophila homeodomain-interacting protein kinase (Hipk)-induced growth abnormalities in response to a high sugar diet. On a normal diet, OGT is both necessary and sufficient for inducing Hipk-mediated tumor-like growth. We further show that OGT maintains Hipk protein stability by blocking its proteasomal degradation and that Hipk is O-GlcNAcylated by OGT. In mammalian cells, human HIPK2 proteins accumulate posttranscriptionally upon OGT overexpression. Mass spectrometry analyses reveal that HIPK2 is at least O-GlcNAc modified at S852, T1009, and S1147 residues. Mutations of these residues reduce HIPK2 O-GlcNAcylation and stability. Together, our data demonstrate a conserved role of OGT in positively regulating the protein stability of HIPKs (fly Hipk and human HIPK2), which likely permits the nutritional responsiveness of HIPKs.
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121
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White SM, Avantaggiati ML, Nemazanyy I, Di Poto C, Yang Y, Pende M, Gibney GT, Ressom HW, Field J, Atkins MB, Yi C. YAP/TAZ Inhibition Induces Metabolic and Signaling Rewiring Resulting in Targetable Vulnerabilities in NF2-Deficient Tumor Cells. Dev Cell 2020; 49:425-443.e9. [PMID: 31063758 DOI: 10.1016/j.devcel.2019.04.014] [Citation(s) in RCA: 78] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2018] [Revised: 02/04/2019] [Accepted: 04/08/2019] [Indexed: 02/09/2023]
Abstract
Merlin/NF2 is a bona fide tumor suppressor whose mutations underlie inherited tumor syndrome neurofibromatosis type 2 (NF2), as well as various sporadic cancers including kidney cancer. Multiple Merlin/NF2 effector pathways including the Hippo-YAP/TAZ pathway have been identified. However, the molecular mechanisms underpinning the growth and survival of NF2-mutant tumors remain poorly understood. Using an inducible orthotopic kidney tumor model, we demonstrate that YAP/TAZ silencing is sufficient to induce regression of pre-established NF2-deficient tumors. Mechanistically, YAP/TAZ depletion diminishes glycolysis-dependent growth and increases mitochondrial respiration and reactive oxygen species (ROS) buildup, resulting in oxidative-stress-induced cell death when challenged by nutrient stress. Furthermore, we identify lysosome-mediated cAMP-PKA/EPAC-dependent activation of RAF-MEK-ERK signaling as a resistance mechanism to YAP/TAZ inhibition. Finally, unbiased analysis of TCGA primary kidney tumor transcriptomes confirms a positive correlation of a YAP/TAZ signature with glycolysis and inverse correlations with oxidative phosphorylation and lysosomal gene expression, supporting the clinical relevance of our findings.
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Affiliation(s)
- Shannon M White
- Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington DC, USA
| | | | - Ivan Nemazanyy
- Institut National de la Santé et de la Recherche Médicale (INSERM), U1151, Institut Necker Enfants Malades, Université Paris Descartes, Sorbonne Paris Cité, Paris, France
| | - Cristina Di Poto
- Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington DC, USA
| | - Yang Yang
- Department of Systems Pharmacology and Translational Therapeutics, Perelmen School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Mario Pende
- Institut National de la Santé et de la Recherche Médicale (INSERM), U1151, Institut Necker Enfants Malades, Université Paris Descartes, Sorbonne Paris Cité, Paris, France
| | - Geoffrey T Gibney
- Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington DC, USA
| | - Habtom W Ressom
- Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington DC, USA
| | - Jeffery Field
- Department of Systems Pharmacology and Translational Therapeutics, Perelmen School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Michael B Atkins
- Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington DC, USA
| | - Chunling Yi
- Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington DC, USA.
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122
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Abstract
The Hippo pathway was initially discovered in Drosophila melanogaster as a key regulator of tissue growth. It is an evolutionarily conserved signaling cascade regulating numerous biological processes, including cell growth and fate decision, organ size control, and regeneration. The core of the Hippo pathway in mammals consists of a kinase cascade, MST1/2 and LATS1/2, as well as downstream effectors, transcriptional coactivators YAP and TAZ. These core components of the Hippo pathway control transcriptional programs involved in cell proliferation, survival, mobility, stemness, and differentiation. The Hippo pathway is tightly regulated by both intrinsic and extrinsic signals, such as mechanical force, cell-cell contact, polarity, energy status, stress, and many diffusible hormonal factors, the majority of which act through G protein-coupled receptors. Here, we review the current understanding of molecular mechanisms by which signals regulate the Hippo pathway with an emphasis on mechanotransduction and the effects of this pathway on basic biology and human diseases.
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Affiliation(s)
- Shenghong Ma
- Department of Pharmacology and Moores Cancer Center, University of California, San Diego, La Jolla, California 92093, USA; , , ,
| | - Zhipeng Meng
- Department of Pharmacology and Moores Cancer Center, University of California, San Diego, La Jolla, California 92093, USA; , , ,
| | - Rui Chen
- Department of Pharmacology and Moores Cancer Center, University of California, San Diego, La Jolla, California 92093, USA; , , ,
| | - Kun-Liang Guan
- Department of Pharmacology and Moores Cancer Center, University of California, San Diego, La Jolla, California 92093, USA; , , ,
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123
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Hao S, Matsui Y, Lai ZC, Paulson RF. Yap1 promotes proliferation of transiently amplifying stress erythroid progenitors during erythroid regeneration. Exp Hematol 2019; 80:42-54.e4. [PMID: 31756359 DOI: 10.1016/j.exphem.2019.11.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Revised: 11/11/2019] [Accepted: 11/12/2019] [Indexed: 11/18/2022]
Abstract
In contrast to steady-state erythropoiesis, which generates new erythrocytes at a constant rate, stress erythropoiesis rapidly produces a large bolus of new erythrocytes in response to anemic stress. In this study, we illustrate that Yes-associated protein (Yap1) promotes the rapid expansion of a transit-amplifying population of stress erythroid progenitors in vivo and in vitro. Yap1-mutated erythroid progenitors failed to proliferate in the spleen after transplantation into lethally irradiated recipient mice. Additionally, loss of Yap1 impaired the growth of actively proliferating erythroid progenitors in vitro. This role in proliferation is supported by gene expression profiles showing that transiently amplifying stress erythroid progenitors express high levels of genes associated with Yap1 activity and genes induced by Yap1. Furthermore, Yap1 promotes the proliferation of stress erythroid progenitors in part by regulating the expression of key glutamine-metabolizing enzymes. Thus, Yap1 acts as an erythroid regulator that coordinates the metabolic status with the proliferation of erythroid progenitors to promote stress erythropoiesis.
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Affiliation(s)
- Siyang Hao
- Graduate Program in Molecular, Cellular and Integrative Biosciences, Penn State University, University Park, PA; Center for Molecular Immunology and Infectious Disease at Penn State University, University Park, PA
| | - Yurika Matsui
- Graduate Program in Molecular, Cellular and Integrative Biosciences, Penn State University, University Park, PA
| | - Zhi-Chun Lai
- Graduate Program in Molecular, Cellular and Integrative Biosciences, Penn State University, University Park, PA; Graduate Program in Biochemistry, Microbiology and Molecular Biology, Penn State University, University Park, PA; Department of Biology, Penn State University, University Park, PA
| | - Robert F Paulson
- Graduate Program in Molecular, Cellular and Integrative Biosciences, Penn State University, University Park, PA; Center for Molecular Immunology and Infectious Disease at Penn State University, University Park, PA; Graduate Program in Biochemistry, Microbiology and Molecular Biology, Penn State University, University Park, PA; Department of Veterinary and Biomedical Sciences, Penn State University, University Park, PA.
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124
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Ma L, Jiang H, Xu X, Zhang C, Niu Y, Wang Z, Tao Y, Li Y, Cai F, Zhang X, Wang X, Yu Y. Tanshinone IIA mediates SMAD7-YAP interaction to inhibit liver cancer growth by inactivating the transforming growth factor beta signaling pathway. Aging (Albany NY) 2019; 11:9719-9737. [PMID: 31711043 PMCID: PMC6874425 DOI: 10.18632/aging.102420] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2019] [Accepted: 10/28/2019] [Indexed: 02/07/2023]
Abstract
Tanshinone IIA (TanIIA)-an active constituent of Salvia miltiorrhiza, a traditional Chinese medicinal plant-is known to have blood circulation promotion and anti-tumor properties. Tan IIA can induce tumor cell death and inhibit tumor growth. However, the functions and underling molecular mechanisms of Tan IIA action on human liver cancer cells remain poorly understand. In this study, we found that Tanshinone IIA mediates SMAD7-YAP interaction to induce liver cancer cell apoptosis and inhibit cell growth and migration by inactivating the transforming growth factor beta (TGF-β) signaling pathway. Our findings showed that the Tan IIA-SMAD7-YAP regulatory network might be an effective strategy for liver cancer treatment.
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Affiliation(s)
- Lifang Ma
- Department of Clinical Laboratory Medicine, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200071, P.R. China.,Institute for Thoracic Oncology, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai 200030, P.R. China
| | - Hongyuan Jiang
- Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200071, P.R. China
| | - Xin Xu
- Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200071, P.R. China
| | - Congcong Zhang
- Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200071, P.R. China
| | - Yongjie Niu
- Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200071, P.R. China
| | - Zhixian Wang
- Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200071, P.R. China
| | - Yuquan Tao
- Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200071, P.R. China
| | - Yan Li
- Department of Oncology, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200071, P.R. China
| | - Feng Cai
- Department of Clinical Laboratory Medicine, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200071, P.R. China
| | - Xiao Zhang
- Institute for Thoracic Oncology, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai 200030, P.R. China
| | - Xinghe Wang
- Beijing Shijitan Hospital, Capital Medical University, Beijing 100038, P.R. China
| | - Yongchun Yu
- Institute for Thoracic Oncology, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai 200030, P.R. China.,Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200071, P.R. China
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125
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Song H, Ma J, Bian Z, Chen S, Zhu J, Wang J, Huang N, Yin M, Sun F, Xu M, Pan Q. Global profiling of O-GlcNAcylated and/or phosphorylated proteins in hepatoblastoma. Signal Transduct Target Ther 2019; 4:40. [PMID: 31637018 PMCID: PMC6799812 DOI: 10.1038/s41392-019-0067-4] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2019] [Revised: 05/28/2019] [Accepted: 06/27/2019] [Indexed: 12/12/2022] Open
Abstract
O-linked-β-N-acetylglucosamine (O-GlcNAc) glycosylation (O-GlcNAcylation) and phosphorylation are critical posttranslational modifications that are involved in regulating the functions of proteins involved in tumorigenesis and the development of various solid tumors. However, a detailed characterization of the patterns of these modifications at the peptide or protein level in hepatoblastoma (HB), a highly malignant primary hepatic tumor with an extremely low incidence in children, has not been performed. Here, we examined O-GlcNAc-modified or phospho-modified peptides and proteins in HB through quantitative proteomic analysis of HB tissues and paired normal liver tissues. Our results identified 114 O-GlcNAcylated peptides belonging to 78 proteins and 3494 phosphorylated peptides in 2088 proteins. Interestingly, 41 proteins were modified by both O-GlcNAcylation and phosphorylation. These proteins are involved in multiple molecular and cellular processes, including chromatin remodeling, transcription, translation, transportation, and organelle organization. In addition, we verified the accuracy of the proteomics results and found a competitive inhibitory effect between O-GlcNAcylation and phosphorylation of HSPB1. Further, O-GlcNAcylation modification of HSPB1 promoted proliferation and enhanced the chemotherapeutic resistance of HB cell lines in vitro. Collectively, our research suggests that O-GlcNAc-modified and/or phospho-modified proteins may play a crucial role in the pathogenesis of HB.
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Affiliation(s)
- Hang Song
- Department of Laboratory Medicine, Shanghai Children’s Medical Center, School of Medicine, Shanghai Jiaotong University, 200127 Shanghai, China
| | - Ji Ma
- Department of Laboratory Medicine, Shanghai Children’s Medical Center, School of Medicine, Shanghai Jiaotong University, 200127 Shanghai, China
| | - Zhixuan Bian
- Department of Laboratory Medicine, Shanghai Children’s Medical Center, School of Medicine, Shanghai Jiaotong University, 200127 Shanghai, China
| | - Shuhua Chen
- Department of Laboratory Medicine, Yunfu People’s Hospital, 527300 Guangdong, China
| | - Jiabei Zhu
- Department of Laboratory Medicine, Shanghai Children’s Medical Center, School of Medicine, Shanghai Jiaotong University, 200127 Shanghai, China
| | - Jing Wang
- Department of Surgery, Shanghai Children’s Medical Center, School of Medicine, Shanghai Jiaotong University, 200127 Shanghai, China
| | - Nan Huang
- Department of Laboratory Medicine, Shanghai Tenth People’s Hospital of Tongji University, 200072 Shanghai, China
| | - Minzhi Yin
- Department of Pathology, Shanghai Children’s Medical Center, School of Medicine, Shanghai Jiaotong University, 200127 Shanghai, China
| | - Fenyong Sun
- Department of Laboratory Medicine, Shanghai Tenth People’s Hospital of Tongji University, 200072 Shanghai, China
| | - Min Xu
- Department of Surgery, Shanghai Children’s Medical Center, School of Medicine, Shanghai Jiaotong University, 200127 Shanghai, China
| | - Qiuhui Pan
- Department of Laboratory Medicine, Shanghai Children’s Medical Center, School of Medicine, Shanghai Jiaotong University, 200127 Shanghai, China
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126
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Ikeda S, Mukai R, Mizushima W, Zhai P, Oka SI, Nakamura M, Del Re DP, Sciarretta S, Hsu CP, Shimokawa H, Sadoshima J. Yes-Associated Protein (YAP) Facilitates Pressure Overload-Induced Dysfunction in the Diabetic Heart. JACC Basic Transl Sci 2019; 4:611-622. [PMID: 31768477 PMCID: PMC6872826 DOI: 10.1016/j.jacbts.2019.05.006] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Revised: 04/19/2019] [Accepted: 05/09/2019] [Indexed: 01/09/2023]
Abstract
Patients with diabetes are more prone to developing heart failure in the presence of high blood pressure than those without diabetes. Yes-associated protein (YAP), a key effector of the Hippo signaling pathway, is persistently activated in diabetic hearts, and YAP plays an essential role in mediating the exacerbation of heart failure in response to pressure overload in the hearts of mice fed a high-fat diet. YAP induced dedifferentiation of cardiomyocytes through activation of transcriptional enhancer factor 1 (TEAD1), a transcription factor. Thus, YAP and TEAD1 are promising therapeutic targets for diabetic patients with high blood pressure to prevent the development of heart failure.
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Key Words
- HF, heart failure
- HFD, high-fat diet
- Hippo pathway
- LV, left ventricular
- Lats2, large tumor suppressor kinase 2
- Mst1, mammalian sterile 20-like 1
- ND, normal diet
- OSM, oncostatin M
- PO, pressure overload
- Runx1, runt-related transcription factor 1
- TAC, transverse aortic constriction
- TAZ, transcriptional coactivator with PDZ-binding motif
- TEAD, transcriptional enhancer factor
- YAP, Yes-associated protein
- diabetes
- diabetic cardiomyopathy
- pressure overload
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Affiliation(s)
- Shohei Ikeda
- Department of Cell Biology and Molecular Medicine, Cardiovascular Research Institute, Rutgers New Jersey Medical School, Newark, New Jersey.,Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Risa Mukai
- Department of Cell Biology and Molecular Medicine, Cardiovascular Research Institute, Rutgers New Jersey Medical School, Newark, New Jersey
| | - Wataru Mizushima
- Department of Cell Biology and Molecular Medicine, Cardiovascular Research Institute, Rutgers New Jersey Medical School, Newark, New Jersey
| | - Peiyong Zhai
- Department of Cell Biology and Molecular Medicine, Cardiovascular Research Institute, Rutgers New Jersey Medical School, Newark, New Jersey
| | - Shin-Ichi Oka
- Department of Cell Biology and Molecular Medicine, Cardiovascular Research Institute, Rutgers New Jersey Medical School, Newark, New Jersey
| | - Michinari Nakamura
- Department of Cell Biology and Molecular Medicine, Cardiovascular Research Institute, Rutgers New Jersey Medical School, Newark, New Jersey
| | - Dominic P Del Re
- Department of Cell Biology and Molecular Medicine, Cardiovascular Research Institute, Rutgers New Jersey Medical School, Newark, New Jersey
| | - Sebastiano Sciarretta
- Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Latina, Italy.,Istituto Di Ricovero e Cura a Carattere Scientifico Neuromed, Pozzilli, Italy
| | - Chiao-Po Hsu
- Division of Cardiovascular Surgery, Department of Surgery, Taipei Veterans General Hospital, National Yang-Ming University School of Medicine, Taiwan
| | - Hiroaki Shimokawa
- Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Junichi Sadoshima
- Department of Cell Biology and Molecular Medicine, Cardiovascular Research Institute, Rutgers New Jersey Medical School, Newark, New Jersey
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Abstract
The Hippo signalling pathway and its transcriptional co-activator targets Yorkie/YAP/TAZ first came to attention because of their role in tissue growth control. Over the past 15 years, it has become clear that, like other developmental pathways (e.g. the Wnt, Hedgehog and TGFβ pathways), Hippo signalling is a 'jack of all trades' that is reiteratively used to mediate a range of cellular decision-making processes from proliferation, death and morphogenesis to cell fate determination. Here, and in the accompanying poster, we briefly outline the core pathway and its regulation, and describe the breadth of its roles in animal development.
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Affiliation(s)
- John Robert Davis
- Apoptosis and Proliferation Control Laboratory, The Francis Crick Institute, 1 Midland Road, London NW1 1AT, UK
| | - Nicolas Tapon
- Apoptosis and Proliferation Control Laboratory, The Francis Crick Institute, 1 Midland Road, London NW1 1AT, UK
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128
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CCT3 acts upstream of YAP and TFCP2 as a potential target and tumour biomarker in liver cancer. Cell Death Dis 2019; 10:644. [PMID: 31501420 PMCID: PMC6733791 DOI: 10.1038/s41419-019-1894-5] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2019] [Revised: 07/16/2019] [Accepted: 08/11/2019] [Indexed: 02/06/2023]
Abstract
Although Yes-associated protein (YAP) is very important to liver cancer, its nuclear localisation prevents consideration as a promising therapeutic target and a diagnostic biomarker. Recently, we reported that the protumourigenic roles of YAP in liver cancer are indispensable for transcription factor CP2 (TFCP2) in a Hippo-independent manner; however, proteins that act upstream to simultaneously control YAP and TFCP2 remain unclear. The aim of this study was to uncover such proteins and evaluate whether they are potential YAP-associated therapeutic targets and diagnostic biomarkers. Mass spectrometry revealed that chaperonin containing TCP1 subunit 3 (CCT3) co-interact with YAP and TFCP2, and notably, CCT3 is a non-nuclear protein. CCT3 was elevated in liver cancer, and its higher expression was associated with poorer overall survival. Inhibiting CCT3 resulted in a suppressed transformative phenotype in liver cancer cells, suggesting that CCT3 might be a potential therapeutic target. CCT3 prolonged half-life of YAP and TFCP2 by blocking their ubiquitination caused by poly(rC) binding protein 2 (PCBP2) in a beta-transducin repeat containing E3 ubiquitin protein ligase (βTrCP)-independent manner. Interestingly, PCBP2 directly interacted with YAP via a WB motif-WW domain interaction, whereas indirectly interacted with TFCP2 via the aid of YAP. Furthermore, CCT3 was capable of separating PCBP2-YAP interactions, thereby preventing YAP and TFCP2 from PCBP2-induced ubiquitination. Moreover, YAP and TFCP2 were downstream of CCT3 to positively control tumourigenesis, yet such effects were inhibited by PCBP2. Clinically, CCT3 was positively correlated with YAP and TFCP2, and elevated levels of the CCT3-YAP-TFCP2 axis might be critical for liver malignancy. In addition, seral-CCT3 was proven to be a potential biomarker, and its diagnostic capacity was better than that of alpha fetoprotein (AFP) to a certain extent. Together, CCT3 acts as a trigger of YAP and TFCP2 to affect tumourigenesis and serves as a potential therapeutic target and biomarker in liver cancer.
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129
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Wu D, Birukov K. Endothelial Cell Mechano-Metabolomic Coupling to Disease States in the Lung Microvasculature. Front Bioeng Biotechnol 2019; 7:172. [PMID: 31380363 PMCID: PMC6658821 DOI: 10.3389/fbioe.2019.00172] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Accepted: 07/03/2019] [Indexed: 12/15/2022] Open
Abstract
Lungs are the most vascular part of humans, accepting the totality of cardiac output in a volume much smaller than the body itself. Due to this cardiac output, the lung microvasculature is subject to mechanical forces including shear stress and cyclic stretch that vary with the cardiac and breathing cycle. Vessels are surrounded by extracellular matrix which dictates the stiffness which endothelial cells also sense and respond to. Shear stress, stiffness, and cyclic stretch are known to influence endothelial cell state. At high shear stress, endothelial cells exhibit cell quiescence marked by low inflammatory markers and high nitric oxide synthesis, whereas at low shear stress, endothelial cells are thought to "activate" into a pro-inflammatory state and have low nitric oxide. Shear stress' profound effect on vascular phenotype is most apparent in the arterial vasculature and in the pathophysiology of vascular inflammation. To conduct the flow of blood from the right heart, the lung microvasculature must be rigid yet compliant. It turns out that excessive substrate rigidity or stiffness is important in the development of pulmonary hypertension and chronic fibrosing lung diseases via excessive cell proliferation or the endothelial-mesenchymal transition. Recently, a new body of literature has evolved that couples mechanical sensing to endothelial phenotypic changes through metabolic signaling in clinically relevant contexts such as pulmonary hypertension, lung injury syndromes, as well as fibrosis, which is the focus of this review. Stretch, like flow, has profound effect on endothelial phenotype; metabolism studies due to stretch are in their infancy.
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Affiliation(s)
- David Wu
- Section of Pulmonary and Critical Care, Department of Medicine, University of Chicago, Chicago, IL, United States
| | - Konstantin Birukov
- Department of Anesthesia, University of Maryland, Baltimore, MD, United States
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130
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A novel YAP1/SLC35B4 regulatory axis contributes to proliferation and progression of gastric carcinoma. Cell Death Dis 2019; 10:452. [PMID: 31175271 PMCID: PMC6555804 DOI: 10.1038/s41419-019-1674-2] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2019] [Revised: 05/06/2019] [Accepted: 05/13/2019] [Indexed: 12/18/2022]
Abstract
Solute carrier family 35 member B4 (SLC35B4), a nucleotide sugar transporter, is capable of transporting UDP-xylose and UDP-GlcNAc from the cytoplasm to the lumen of the endoplasmic reticulum and Golgi. SLC35B4 has a pivotal role in glycosylation of biological macromolecules. However, its functional roles and regulatory mechanisms in malignant diseases remain unknown. Here, using the cDNA arrays, promoter reporter assays, and chromatin immunoprecipitation assays, we demonstrated that SLC35B4 is directly transactivated by YAP1–TEADs complex in gastric cancer (GC) cells. CCK-8, plate colony formation and soft agar assays revealed that SLC35B4 is essential for survival and proliferation in GC cells and nude mice models. SLC35B4 expression is markedly higher in GC tissues compared with control noncancerous tissues. Immunohistochemistry revealed that SLC35B4 expression is positively correlated with YAP1 expression in human GC tissues, and this correlation is also confirmed in the GC TCGA data set. GC patients with high levels of SLC35B4 expression have poorer prognosis than those with low levels of SLC35B4 expression. Collectively, our findings defined SLC35B4 as an important downstream oncogenic target of YAP1, suggesting that dysregulated signaling of a novel YAP1/SLC35B4 axis promotes GC development and progression, and this axis could be a potential candidate for prognosis and therapeutics in GC.
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131
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Zhang X, Du L, Qiao Y, Zhang X, Zheng W, Wu Q, Chen Y, Zhu G, Liu Y, Bian Z, Guo S, Yang Y, Ma L, Yu Y, Pan Q, Sun F, Wang J. Ferroptosis is governed by differential regulation of transcription in liver cancer. Redox Biol 2019; 24:101211. [PMID: 31108460 PMCID: PMC6526247 DOI: 10.1016/j.redox.2019.101211] [Citation(s) in RCA: 123] [Impact Index Per Article: 24.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Revised: 04/22/2019] [Accepted: 04/28/2019] [Indexed: 12/20/2022] Open
Abstract
Ferroptosis is an outcome of metabolic disorders and closely linked to liver cancer. However, the mechanism underlying the fine regulation of ferroptosis in liver cancer remains unclear. Here, we have identified two categories of genes: ferroptosis up-regulated factors (FUF) and ferroptosis down-regulated factors (FDF), which stimulate and suppress ferroptosis by affecting the synthesis of GSH. Furthermore, FUF are controlled by one transcription factor HIC1, while FDF controlled by another transcription factor HNF4A. Occurrence of ferroptosis might depend on the histone acetyltransferase KAT2B. Upon stimulation of ferroptosis, dissociation of KAT2B prevents HNF4A from binding to the FDF promoter. This effect happens prior to the recruitment of KAT2B to the FUF promoter, which facilitates HIC1 binding to transcribe FUF. Clinically, HIC1 and HNF4A conversely correlate with tumor stage in liver cancer. Patients with lower HIC1 and higher HNF4A exhibit poorer prognostic outcomes. Disrupting the balance between HIC1 and HNF4A might be helpful in treating liver cancer. Opposite gene expression profiles trigged by ferroptosis are identified. Reduction of GSH is the major cause of inducing ferroptosis in liver cancer cells. Genes related to ferroptosis are controlled by transcription factors HIC1 and HNF4A. Stimulation of ferroptosis breaks the balance between HIC1 and HNF4A. Lower HIC1 with higher HNF4A has poorer clinical outcomes in liver cancer patients.
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Affiliation(s)
- Xiao Zhang
- Department of Clinical Laboratory, Shanghai Tenth People's Hospital of Tongji University, Shanghai, 200072, China
| | - Lutao Du
- Department of Clinical Laboratory, The Second Hospital of Shandong University, Jinan, 250033, Shandong province, China
| | - Yongxia Qiao
- School of Public Health, Shanghai Jiaotong University School of Medicine, Shanghai, 200025, China
| | - Xiaobai Zhang
- School of Life Science and Technology, Shanghai Key Laboratory of Signaling and Disease Research, Tongji University, Shanghai, 200092, China
| | - Weisheng Zheng
- School of Life Science and Technology, Shanghai Key Laboratory of Signaling and Disease Research, Tongji University, Shanghai, 200092, China
| | - Qi Wu
- Department of Clinical Laboratory, Shanghai Tenth People's Hospital of Tongji University, Shanghai, 200072, China
| | - Yan Chen
- Department of Clinical Laboratory, Shanghai Tenth People's Hospital of Tongji University, Shanghai, 200072, China
| | - Guoqing Zhu
- Department of Clinical Laboratory, Shanghai Tenth People's Hospital of Tongji University, Shanghai, 200072, China
| | - Ya Liu
- Department of Clinical Laboratory, Shanghai Tenth People's Hospital of Tongji University, Shanghai, 200072, China
| | - Zhixuan Bian
- Department of Laboratory Medicine, Shanghai Children's Medical Center, Shanghai Jiaotong University School of Medicine, Shanghai, 200127, China
| | - Susu Guo
- Department of Clinical Laboratory, Shanghai Tenth People's Hospital of Tongji University, Shanghai, 200072, China
| | - Yueyue Yang
- Department of Clinical Laboratory, Shanghai Tenth People's Hospital of Tongji University, Shanghai, 200072, China
| | - Lifang Ma
- Shanghai Institute of Thoracic Tumors, Shanghai Chest Hospital, Shanghai, 200030, China
| | - Yongchun Yu
- Shanghai Chest Hospital, Shanghai, 200030, China
| | - Qiuhui Pan
- Department of Laboratory Medicine, Shanghai Children's Medical Center, Shanghai Jiaotong University School of Medicine, Shanghai, 200127, China.
| | - Fenyong Sun
- Department of Clinical Laboratory, Shanghai Tenth People's Hospital of Tongji University, Shanghai, 200072, China.
| | - Jiayi Wang
- Department of Clinical Laboratory, Shanghai Tenth People's Hospital of Tongji University, Shanghai, 200072, China; Advanced Institute of Translational Medicine, Tongji University, Shanghai, 200092, China.
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132
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Makwana V, Ryan P, Patel B, Dukie SA, Rudrawar S. Essential role of O-GlcNAcylation in stabilization of oncogenic factors. Biochim Biophys Acta Gen Subj 2019; 1863:1302-1317. [PMID: 31034911 DOI: 10.1016/j.bbagen.2019.04.002] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2018] [Revised: 04/01/2019] [Accepted: 04/03/2019] [Indexed: 12/14/2022]
Abstract
A reversible post-translational protein modification which involves addition of N-acetylglucosamine (GlcNAc) onto hydroxyl groups of serine and/or threonine residues which is known as O-GlcNAcylation, has emerged as a potent competitor of phosphorylation. This glycosyltransfer reaction is catalyzed by the enzyme O-linked β-N-acetylglucosamine transferase (OGT). This enzyme uses uridine diphosphate N-acetylglucosamine (UDP-GlcNAc), the end product of hexosamine biosynthetic pathway, to modify numerous nuclear and cytosolic proteins. O-GlcNAcylation influences cancer cell metabolism in such a way that hyper-O-GlcNAcylation is considered as a prominent trait of many cancers, and is proposed as a major factor enabling cancer cell proliferation and progression. Growing evidence supports a connection between O-GlcNAcylation and major oncogenic factors, including for example, c-MYC, HIF-1α, and NF-κB. A comprehensive study of the roles of O-GlcNAc modification of oncogenic factors is warranted as a thorough understanding may help drive advances in cancer diagnosis and therapy. The focus of this article is to highlight the interplay between oncogenic factors and O-GlcNAcylation along with OGT in cancer cell proliferation and survival. The prospects for OGT inhibitors will also be discussed.
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Affiliation(s)
- Vivek Makwana
- School of Pharmacy and Pharmacology, Griffith University, Gold Coast, Queensland 4222, Australia
| | - Philip Ryan
- School of Pharmacy and Pharmacology, Griffith University, Gold Coast, Queensland 4222, Australia
| | - Bhautikkumar Patel
- School of Pharmacy and Pharmacology, Griffith University, Gold Coast, Queensland 4222, Australia
| | - Shailendra-Anoopkumar Dukie
- School of Pharmacy and Pharmacology, Griffith University, Gold Coast, Queensland 4222, Australia; Menzies Health Institute Queensland, Griffith University, Gold Coast, Queensland 4222, Australia; Quality Use of Medicines Network, Griffith University, Gold Coast 4222, Australia.
| | - Santosh Rudrawar
- School of Pharmacy and Pharmacology, Griffith University, Gold Coast, Queensland 4222, Australia; Menzies Health Institute Queensland, Griffith University, Gold Coast, Queensland 4222, Australia; Quality Use of Medicines Network, Griffith University, Gold Coast 4222, Australia.
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133
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Gao S, Miao Y, Liu Y, Liu X, Fan X, Lin Y, Qian P, Zhou J, Dai Y, Xia L, Zhu P, Zhu J. Reciprocal Regulation Between O-GlcNAcylation and β-Catenin Facilitates Cell Viability and Inhibits Apoptosis in Liver Cancer. DNA Cell Biol 2019; 38:286-296. [PMID: 30762425 DOI: 10.1089/dna.2018.4447] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Affiliation(s)
- Sicheng Gao
- Department of Hepatology, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, P.R. China
| | - Yun Miao
- Department of Rehabilitation, Shanghai General Hospital, Shanghai, P.R. China
| | - Yijie Liu
- Department of Rehabilitation, Shanghai University of Traditional Chinese Medicine, Shanghai, P.R. China
| | - Xing Liu
- Department of Central Laboratory Medicine, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, P.R. China
| | - Xingliang Fan
- Department of Hepatology, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, P.R. China
| | - Yan Lin
- Department of Hepatology, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, P.R. China
| | - Pingan Qian
- Department of Hepatology, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, P.R. China
| | - Jun Zhou
- Department of Hepatology, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, P.R. China
| | - Yaoyao Dai
- Department of Hepatology, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, P.R. China
| | - Li Xia
- Department of Liver Disease, Chongqing Traditional Chinese Medicine Hospital, Chongqing, P.R. China
| | - Po Zhu
- Department of Neurology, Minhang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai, P.R. China
| | - Junfeng Zhu
- Department of Hepatology, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, P.R. China
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134
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Nguyen CDK, Yi C. YAP/TAZ Signaling and Resistance to Cancer Therapy. Trends Cancer 2019; 5:283-296. [PMID: 31174841 DOI: 10.1016/j.trecan.2019.02.010] [Citation(s) in RCA: 214] [Impact Index Per Article: 42.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2018] [Revised: 12/31/2018] [Accepted: 02/15/2019] [Indexed: 12/23/2022]
Abstract
Drug resistance is a major challenge in cancer treatment. Emerging evidence indicates that deregulation of YAP/TAZ signaling may be a major mechanism of intrinsic and acquired resistance to various targeted and chemotherapies. Moreover, YAP/TAZ-mediated expression of PD-L1 and multiple cytokines is pivotal for tumor immune evasion. While direct inhibitors of YAP/TAZ are still under development, FDA-approved drugs that indirectly block YAP/TAZ activation or critical downstream targets of YAP/TAZ have shown promise in the clinic in reducing therapy resistance. Finally, BET inhibitors, which reportedly block YAP/TAZ-mediated transcription, present another potential venue to overcome YAP/TAZ-induced drug resistance.
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Affiliation(s)
- Chan D K Nguyen
- Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC, USA
| | - Chunling Yi
- Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC, USA.
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135
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Ryva B, Zhang K, Asthana A, Wong D, Vicioso Y, Parameswaran R. Wheat Germ Agglutinin as a Potential Therapeutic Agent for Leukemia. Front Oncol 2019; 9:100. [PMID: 30847305 PMCID: PMC6393371 DOI: 10.3389/fonc.2019.00100] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Accepted: 02/04/2019] [Indexed: 01/22/2023] Open
Abstract
Dietary lectins are carbohydrate-binding proteins found in food sources. We used a panel of seven dietary lectins to analyze cytotoxicity against hematological cancers. Wheat germ agglutinin (WGA), even at low doses, demonstrated maximum toxicity toward acute myeloid leukemia (AML) cells. Using AML cell lines, we show time- and dose-dependent killing by WGA. We also show that low doses of WGA kills primary patient AML cells, irrespective of subtype, with no significant toxicity to normal cells. WGA caused AML cell agglutination, but failed to agglutinate RBC's at this dose. WGA, primarily, binds to N-acetyl-D-glucosamine (GlcNAc) and is also reported to interact with sialic-acid-containing glycoconjugates and oligosaccharides. After neuraminidase pre-treatment, which catalyzes the hydrolysis of terminal sialic acid residues, AML cells were less sensitive to WGA-induced cell death. AML cells were also not sensitive to succinyl-WGA, which does not react with sialic acid. Incubation with LEL lectin, which recognizes GlcNAc or SNA, which binds preferentially to sialic acid attached to terminal galactose in α-2,6 and to a lesser degree α-2,3 linkage, did not alter AML cell viability. These data indicate that WGA-induced AML cell death is dependent on both GlcNAc binding and interaction with sialic acids. We did not observe any in vitro or in vivo toxicity of WGA toward normal cells at the concentrations tested. Finally, low doses of WGA injection demonstrated significant in vivo toxicity toward AML cells, using xenograft mouse model. Thus, WGA is a potential candidate for leukemia therapy.
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Affiliation(s)
- Bradley Ryva
- Department of Pathology, School of Medicine, Case Western Reserve University, Cleveland, OH, United States
| | - Keman Zhang
- Division of Hematology/Oncology, Department of Medicine, School of Medicine, Case Western Reserve University, Cleveland, OH, United States
| | - Abhishek Asthana
- Division of Hematology/Oncology, Department of Medicine, School of Medicine, Case Western Reserve University, Cleveland, OH, United States
| | - Derek Wong
- Department of Pathology, School of Medicine, Case Western Reserve University, Cleveland, OH, United States
| | - Yorleny Vicioso
- Department of Pathology, School of Medicine, Case Western Reserve University, Cleveland, OH, United States
| | - Reshmi Parameswaran
- Department of Pathology, School of Medicine, Case Western Reserve University, Cleveland, OH, United States
- Division of Hematology/Oncology, Department of Medicine, School of Medicine, Case Western Reserve University, Cleveland, OH, United States
- The Case Comprehensive Cancer Center, Case Western Reserve University School of Medicine, Cleveland, OH, United States
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136
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ILF2 Directly Binds and Stabilizes CREB to Stimulate Malignant Phenotypes of Liver Cancer Cells. Anal Cell Pathol (Amst) 2019; 2019:1575031. [PMID: 30881868 PMCID: PMC6387701 DOI: 10.1155/2019/1575031] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2018] [Revised: 10/12/2018] [Accepted: 10/20/2018] [Indexed: 12/14/2022] Open
Abstract
Cyclic adenosine monophosphate (cAMP) response element-binding protein (CREB) is overexpressed and has an oncogenic role in hepatocellular carcinoma (HCC). Interleukin enhancer binding factor 2 (ILF2) has become research hotspot in liver cancer recently. However, it is still unclear whether and how CREB and ILF2 interact with each other. And how this interaction exerts its role in occurrence and development of liver cancer is still unclear. Here, we found that ILF2 directly bound with CREB, and this binding was essential for the malignant phenotypes of liver cancer cells. Moreover, we found that ILF2 acted as one of the upstream proteins of CREB and promoted CREB only in the protein level, whereas ILF2 expression was not regulated by CREB. Mechanistically, ILF2 bound to the pKID domain of CREB and stimulated its phosphorylation at Ser133. Taken together, our study finds a novel interaction between CREB and ILF2 in liver cancer, and this interaction might play a role in the diagnosis and remedy of liver cancer.
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137
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Wang H, Guo J, Wang N, Wang J, Xue Q, Wang J, Liu W, Liu K, Cao X, Zhao W, Xi R, Niu Y, Wang P, Li J. Ac 4GlcNAcF 3, an OGT-tolerated but OGA-resistant regulator for O-GlcNAcylation. Bioorg Med Chem Lett 2019; 29:802-805. [PMID: 30713024 DOI: 10.1016/j.bmcl.2019.01.021] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Revised: 01/18/2019] [Accepted: 01/19/2019] [Indexed: 10/27/2022]
Abstract
O-Linked N-acetylglucosamine (O-GlcNAc) is an abundant posttranslationalmonosaccaride-modification found on Ser or Thr residues of intracellular proteins in most eukaryotes. The dynamic nature of O-GlcNAc has enabled researchers to modulate the stoichiometry of O-GlcNAc on proteins in order to investigate its function. Cell permeable small moleculars have proven invaluable tools to increase O-GlcNAc levels. Herein, using in vitro substrate screening, we identified GlcNAcF3 as an OGT-accepted but OGA-resistant sugar mimic. Cellular experiments with cell-permeable peracetylated-GlcNAcF3 (Ac4GlcNAcF3) displayed that Ac4GlcNAcF3 was a potent tool to increase O-GlcNAc levels in several cell lines. Further, NIH3T3 cells interfered with OGT (siOGT) showed significant decreasing of O-GlcNAc levels with Ac4GlcNAcF3 treatment, indicating O-GlcNAcF3 was an OGT-dependent modification. In addition, cellular toxic assay confirmed O-GlcNAcF3 production has no significant effect on cell proliferation or viability. Thus, Ac4GlcNAcF3 represents a safe and dual regulator for both OGT and OGA, which will benefit the study of O-GlcNAc.
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Affiliation(s)
- Haifeng Wang
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Reasearch, Nankai University, Haihe Education Park, 38 Tongyan Road, Tianjin 300353, China
| | - Jianshuang Guo
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Reasearch, Nankai University, Haihe Education Park, 38 Tongyan Road, Tianjin 300353, China
| | - Nan Wang
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Reasearch, Nankai University, Haihe Education Park, 38 Tongyan Road, Tianjin 300353, China
| | - Jiajia Wang
- School of Basic Medical Sciences, Henan University Joint National Laboratory for Antibody Drug Engineering, Kaifeng, Henan 475004, China
| | - Qingqing Xue
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Reasearch, Nankai University, Haihe Education Park, 38 Tongyan Road, Tianjin 300353, China
| | - Jiyan Wang
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Reasearch, Nankai University, Haihe Education Park, 38 Tongyan Road, Tianjin 300353, China
| | - Wenjie Liu
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Reasearch, Nankai University, Haihe Education Park, 38 Tongyan Road, Tianjin 300353, China
| | - Kaihui Liu
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Reasearch, Nankai University, Haihe Education Park, 38 Tongyan Road, Tianjin 300353, China
| | - Xuefeng Cao
- Department of Chemistry & Center for Diagnostics & Therapeutics Georgia State University, Atlanta, GA 30303, USA
| | - Wei Zhao
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Reasearch, Nankai University, Haihe Education Park, 38 Tongyan Road, Tianjin 300353, China
| | - Rimo Xi
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Reasearch, Nankai University, Haihe Education Park, 38 Tongyan Road, Tianjin 300353, China
| | - Youhong Niu
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking Univeristy, Xue Yuan Road No.38, Beijing 100191, China
| | - Peng Wang
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Reasearch, Nankai University, Haihe Education Park, 38 Tongyan Road, Tianjin 300353, China
| | - Jing Li
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Reasearch, Nankai University, Haihe Education Park, 38 Tongyan Road, Tianjin 300353, China; College of Chemistry and Molecular Engineering, Beijing National Laboratory for Molecular Sciences, Peking University, Beijing 100191, China.
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138
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Callus BA, Finch-Edmondson ML, Fletcher S, Wilton SD. YAPping about and not forgetting TAZ. FEBS Lett 2019; 593:253-276. [PMID: 30570758 DOI: 10.1002/1873-3468.13318] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Revised: 12/05/2018] [Accepted: 12/14/2018] [Indexed: 12/14/2022]
Abstract
The Hippo pathway has emerged as a major eukaryotic signalling pathway and is increasingly the subject of intense interest, as are the key effectors of canonical Hippo signalling, YES-associated protein (YAP) and TAZ. The Hippo pathway has key roles in diverse biological processes, including network signalling regulation, development, organ growth, tissue repair and regeneration, cancer, stem cell regulation and mechanotransduction. YAP and TAZ are multidomain proteins and function as transcriptional coactivators of key genes to evoke their biological effects. YAP and TAZ interact with numerous partners and their activities are controlled by a complex set of processes. This review provides an overview of Hippo signalling and its role in growth. In particular, the functional domains of YAP and TAZ and the complex mechanisms that regulate their protein stability and activity are discussed. Notably, the similarities and key differences are highlighted between the two paralogues including which partner proteins interact with which functional domains to regulate their activity.
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Affiliation(s)
| | - Megan L Finch-Edmondson
- Discipline of Child and Adolescent Health, Children's Hospital at Westmead Clinical School, University of Sydney Medical School, Australia.,Cerebral Palsy Alliance Research Institute, University of Sydney, Australia
| | - Sue Fletcher
- Centre for Comparative Genomics, Murdoch University, Australia.,Perron Institute for Neurological and Translational Research, Nedlands, Australia
| | - Steve D Wilton
- Centre for Comparative Genomics, Murdoch University, Australia.,Perron Institute for Neurological and Translational Research, Nedlands, Australia
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139
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Li Y, Zhang T, Qin S, Wang R, Li Y, Zhou Z, Chen Y, Wu Q, Su F. Effects of UPF1 expression on EMT process by targeting E‑cadherin, N‑cadherin, Vimentin and Twist in a hepatocellular carcinoma cell line. Mol Med Rep 2019; 19:2137-2143. [PMID: 30628676 PMCID: PMC6390072 DOI: 10.3892/mmr.2019.9838] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2018] [Accepted: 07/30/2018] [Indexed: 12/19/2022] Open
Abstract
Hepatocellular carcinoma (HCC) is one of the most common malignancies worldwide. It has been reported that HCC has a poor prognosis. In the majority of cases, once metastatic, HCC is incurable. To identify an effective treatment for HCC, it is important to understand the underlying molecular mechanisms of HCC-associated occurrence, proliferation, metastasis and carcinogenesis. In the present study, the role of Up-frameshift 1 (UPF1), a potential tumor suppressor, was investigated in the HCC cell lines. The expression levels of UPF1 in an HCC cell line were examined by reverse transcription-quantitative polymerase chain reaction. The expression levels of 19 key proteins in numerous signaling pathways were detected via protein array analysis in the presence of UPF1 overexpression. The present study further investigated the effects of UPF1 expression levels on the epithelial-mesenchymal transition (EMT) process by targeting E-cadherin, N-cadherin, Vimentin and Twist-related protein 1 (Twist). The results of the present study revealed that UPF1 was significantly downregulated in an HCC cell line. The majority of the proteins exhibited upregulated expression levels in the presence of UPF1 overexpression in the HCC cell line, Huh-7. Key proteins, including cluster of differentiation (CD)31 (platelet endothelial cell adhesion molecule-1), Vimentin, CD44, PCNA, Ki-67, N-Cadherin, Survivin, P53, Met and retinoblastoma exhibited a significant association with UPF1. Furthermore, western blotting indicated that the expression levels of N-cadherin, Vimentin and Twist were notably upregulated while UPF1 was overexpressed; however, E-cadherin was downregulated and opposing observations were reported with protein array analysis. In summary, E-cadherin expression levels were regulated by the manifold, and UPF1, a potential tumor suppressor, may promote the EMT process in Huh-7 HCC cells. The findings of the present study suggested that UPF1 expression levels affected the EMT process by targeting E-cadherin, N-cadherin, Vimentin and Twist.
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Affiliation(s)
- Yawei Li
- Department of Medical Oncology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui 233004, P.R. China
| | - Tiantian Zhang
- Department of Medical Oncology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui 233004, P.R. China
| | - Shukui Qin
- Department of Medical Oncology, PLA Cancer Center, Nanjing Bayi Hospital, Nanjing, Jiangsu 210002, P.R. China
| | - Rui Wang
- Department of Medical Oncology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui 233004, P.R. China
| | - Yumei Li
- Department of Medical Oncology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui 233004, P.R. China
| | - Zhengguang Zhou
- Department of Medical Oncology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui 233004, P.R. China
| | - Yufo Chen
- Department of Medical Oncology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui 233004, P.R. China
| | - Qiong Wu
- Department of Medical Oncology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui 233004, P.R. China
| | - Fang Su
- Department of Medical Oncology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui 233004, P.R. China
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140
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Masclef L, Dehennaut V, Mortuaire M, Schulz C, Leturcq M, Lefebvre T, Vercoutter-Edouart AS. Cyclin D1 Stability Is Partly Controlled by O-GlcNAcylation. Front Endocrinol (Lausanne) 2019; 10:106. [PMID: 30853938 PMCID: PMC6395391 DOI: 10.3389/fendo.2019.00106] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Accepted: 02/05/2019] [Indexed: 01/27/2023] Open
Abstract
Cyclin D1 is the regulatory partner of the cyclin-dependent kinases (CDKs) CDK4 or CDK6. Once associated and activated, the cyclin D1/CDK complexes drive the cell cycle entry and G1 phase progression in response to extracellular signals. To ensure their timely and accurate activation during cell cycle progression, cyclin D1 turnover is finely controlled by phosphorylation and ubiquitination. Here we show that the dynamic and reversible O-linked β-N-Acetyl-glucosaminylation (O-GlcNAcylation) regulates also cyclin D1 half-life. High O-GlcNAc levels increase the stability of cyclin D1, while reduction of O-GlcNAcylation strongly decreases it. Moreover, elevation of O-GlcNAc levels through O-GlcNAcase (OGA) inhibition significantly slows down the ubiquitination of cyclin D1. Finally, biochemical and cell imaging experiments in human cancer cells reveal that the O-GlcNAc transferase (OGT) binds to and glycosylates cyclin D1. We conclude that O-GlcNAcylation promotes the stability of cyclin D1 through modulating its ubiquitination.
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Affiliation(s)
- Louis Masclef
- Université de Lille, CNRS, UMR 8576, UGSF, Unité de Glycobiologie Structurale et Fonctionnelle, Lille, France
| | - Vanessa Dehennaut
- Institut Pasteur de Lille, Université de Lille, CNRS, UMR 8161, M3T: Mechanisms of Tumorigenesis and Targeted Therapies, Lille, France
| | - Marlène Mortuaire
- Université de Lille, CNRS, UMR 8576, UGSF, Unité de Glycobiologie Structurale et Fonctionnelle, Lille, France
| | - Céline Schulz
- Université de Lille, CNRS, UMR 8576, UGSF, Unité de Glycobiologie Structurale et Fonctionnelle, Lille, France
| | - Maïté Leturcq
- Université de Lille, CNRS, UMR 8576, UGSF, Unité de Glycobiologie Structurale et Fonctionnelle, Lille, France
| | - Tony Lefebvre
- Université de Lille, CNRS, UMR 8576, UGSF, Unité de Glycobiologie Structurale et Fonctionnelle, Lille, France
| | - Anne-Sophie Vercoutter-Edouart
- Université de Lille, CNRS, UMR 8576, UGSF, Unité de Glycobiologie Structurale et Fonctionnelle, Lille, France
- *Correspondence: Anne-Sophie Vercoutter-Edouart
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141
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Xu Z, Isaji T, Fukuda T, Wang Y, Gu J. O-GlcNAcylation regulates integrin-mediated cell adhesion and migration via formation of focal adhesion complexes. J Biol Chem 2018; 294:3117-3124. [PMID: 30587575 DOI: 10.1074/jbc.ra118.005923] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Revised: 12/02/2018] [Indexed: 01/08/2023] Open
Abstract
O-GlcNAcylation is a post-translational modification of a protein serine or threonine residue catalyzed by O-GlcNAc transferase (OGT) in the nucleus and cytoplasm. O-GlcNAcylation plays important roles in the cellular signaling that affect the different biological functions of cells, depending upon cell type. However, whether or not O-GlcNAcylation regulates cell adhesion and migration remains unclear. Here, we used the doxycycline-inducible short hairpin RNA (shRNA) system to establish an OGT knockdown (KD) HeLa cell line and found that O-GlcNAcylation is a key regulator for cell adhesion, migration, and focal adhesion (FA) complex formation. The expression levels of OGT and O-GlcNAcylation were remarkably suppressed 24 h after induction of doxycycline. Knockdown of OGT significantly promoted cell adhesion, but it suppressed the cell migration on fibronectin. The immunostaining with paxillin, a marker for FA plaque, clearly showed that the number of FAs was increased in the KD cells compared with that in the control cells. The O-GlcNAcylation levels of paxillin, talin, and focal adhesion kinase were down-regulated in KD cells. Interestingly, the complex formation between integrin β1, focal adhesion kinase, paxillin, and talin was greatly increased in KD cells. Consistently, levels of active integrin β1 were significantly enhanced in KD cells, whereas they were decreased in cells overexpressing OGT. The data suggest a novel regulatory mechanism for O-GlcNAcylation during FA complex formation, which thereby affects integrin activation and integrin-mediated functions such as cell adhesion and migration.
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Affiliation(s)
- Zhiwei Xu
- From the Division of Regulatory Glycobiology, Institute of Molecular Biomembrane and Glycobiology, Tohoku Medical and Pharmaceutical University, 4-4-1 Komatsushima, Aoba-ku, Sendai Miyagi 981-8558, Japan and
| | - Tomoya Isaji
- From the Division of Regulatory Glycobiology, Institute of Molecular Biomembrane and Glycobiology, Tohoku Medical and Pharmaceutical University, 4-4-1 Komatsushima, Aoba-ku, Sendai Miyagi 981-8558, Japan and
| | - Tomohiko Fukuda
- From the Division of Regulatory Glycobiology, Institute of Molecular Biomembrane and Glycobiology, Tohoku Medical and Pharmaceutical University, 4-4-1 Komatsushima, Aoba-ku, Sendai Miyagi 981-8558, Japan and
| | - Yuqin Wang
- the Department of Pharmacology, Pharmacy College, Nantong University, Nantong, Jiangsu Province 226001, China
| | - Jianguo Gu
- From the Division of Regulatory Glycobiology, Institute of Molecular Biomembrane and Glycobiology, Tohoku Medical and Pharmaceutical University, 4-4-1 Komatsushima, Aoba-ku, Sendai Miyagi 981-8558, Japan and
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142
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Wu N, Jiang M, Han Y, Liu H, Chu Y, Liu H, Cao J, Hou Q, Zhao Y, Xu B, Xie X. O-GlcNAcylation promotes colorectal cancer progression by regulating protein stability and potential catcinogenic function of DDX5. J Cell Mol Med 2018; 23:1354-1362. [PMID: 30484950 PMCID: PMC6349181 DOI: 10.1111/jcmm.14038] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Revised: 10/11/2018] [Accepted: 10/26/2018] [Indexed: 12/11/2022] Open
Abstract
The RNA helicase p68 (DDX5), a key player in RNA metabolism, belongs to the DEAD box family and is involved in the development of colorectal cancer. Here, we found both DDX5 and O‐GlcNAcylation are up‐regulated in colorectal cancer. In addition, DDX5 protein level is significantly positively correlated with the expression of O‐GlcNAcylation. Although it was known DDX5 protein could be regulated by post‐translational modification (PTM), how O‐GlcNAcylation modification regulated of DDX5 remains unclear. Here we show that DDX5 interacts directly with OGT in the SW480 cell line, which is the only known enzyme that catalyses O‐GlcNAcylation in humans. Meanwhile, O‐GlcNAcylation could promote DDX5 protein stability. The OGT‐DDX5 axis affects colorectal cancer progression mainly by regulating activation of the AKT/mTOR signalling pathway. Taken together, these results indicated that OGT‐mediated O‐GlcNAcylation stabilizes DDX5, promoting activation of the AKT/mTOR signalling pathway, thus accelerating colorectal cancer progression. This study not only reveals the novel functional of O‐GlcNAcylation in regulating DDX5, but also reveals the carcinogenic effect of the OGT‐DDX5 axis in colorectal cancer.
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Affiliation(s)
- Nan Wu
- Laboratory of Tissue Engineering, Faculty of Life Science, Northwest University, Xi'an, Shaanxi, China
| | - Mingzuo Jiang
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Air Force Medical University (Fourth Military Medical University), Xi'an, Shaanxi, China
| | - Yuying Han
- Laboratory of Tissue Engineering, Faculty of Life Science, Northwest University, Xi'an, Shaanxi, China
| | - Haiming Liu
- College of Computer Science and Technology, Jilin University, Changchun, Jilin, China
| | - Yi Chu
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Air Force Medical University (Fourth Military Medical University), Xi'an, Shaanxi, China
| | - Hao Liu
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Air Force Medical University (Fourth Military Medical University), Xi'an, Shaanxi, China
| | - Jiayi Cao
- Laboratory of Tissue Engineering, Faculty of Life Science, Northwest University, Xi'an, Shaanxi, China
| | - Qiuqiu Hou
- Laboratory of Tissue Engineering, Faculty of Life Science, Northwest University, Xi'an, Shaanxi, China
| | - Yu Zhao
- Laboratory of Tissue Engineering, Faculty of Life Science, Northwest University, Xi'an, Shaanxi, China
| | - Bing Xu
- Department of Gastroenterology, Second Affiliated Hospital of Xi'an Jiao tong University, Xi'an, Shaanxi, China
| | - Xin Xie
- Laboratory of Tissue Engineering, Faculty of Life Science, Northwest University, Xi'an, Shaanxi, China
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143
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Zachara NE. Critical observations that shaped our understanding of the function(s) of intracellular glycosylation (O-GlcNAc). FEBS Lett 2018; 592:3950-3975. [PMID: 30414174 DOI: 10.1002/1873-3468.13286] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Revised: 10/30/2018] [Accepted: 10/31/2018] [Indexed: 12/30/2022]
Abstract
Almost 100 years after the first descriptions of proteins conjugated to carbohydrates (mucins), several studies suggested that glycoproteins were not restricted to the serum, extracellular matrix, cell surface, or endomembrane system. In the 1980s, key data emerged demonstrating that intracellular proteins were modified by monosaccharides of O-linked β-N-acetylglucosamine (O-GlcNAc). Subsequently, this modification was identified on thousands of proteins that regulate cellular processes as diverse as protein aggregation, localization, post-translational modifications, activity, and interactions. In this Review, we will highlight critical discoveries that shaped our understanding of the molecular events underpinning the impact of O-GlcNAc on protein function, the role that O-GlcNAc plays in maintaining cellular homeostasis, and our understanding of the mechanisms that regulate O-GlcNAc-cycling.
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Affiliation(s)
- Natasha E Zachara
- Department of Biological Chemistry, Johns Hopkins University School of Medicine, Baltimore, MD, USA
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144
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Abstract
Hippo signaling is an evolutionarily conserved network that has a central role in regulating cell proliferation and cell fate to control organ growth and regeneration. It promotes activation of the LATS kinases, which control gene expression by inhibiting the activity of the transcriptional coactivator proteins YAP and TAZ in mammals and Yorkie in Drosophila. Diverse upstream inputs, including both biochemical cues and biomechanical cues, regulate Hippo signaling and enable it to have a key role as a sensor of cells' physical environment and an integrator of growth control signals. Several components of this pathway localize to cell-cell junctions and contribute to regulation of Hippo signaling by cell polarity, cell contacts, and the cytoskeleton. Downregulation of Hippo signaling promotes uncontrolled cell proliferation, impairs differentiation, and is associated with cancer. We review the current understanding of Hippo signaling and highlight progress in the elucidation of its regulatory mechanisms and biological functions.
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Affiliation(s)
- Jyoti R Misra
- Waksman Institute and Department of Molecular Biology and Biochemistry, Rutgers University, Piscataway, New Jersey 08854, USA;
| | - Kenneth D Irvine
- Waksman Institute and Department of Molecular Biology and Biochemistry, Rutgers University, Piscataway, New Jersey 08854, USA;
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145
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Aberrant Metabolism in Hepatocellular Carcinoma Provides Diagnostic and Therapeutic Opportunities. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2018; 2018:7512159. [PMID: 30524660 PMCID: PMC6247426 DOI: 10.1155/2018/7512159] [Citation(s) in RCA: 95] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Accepted: 10/03/2018] [Indexed: 02/07/2023]
Abstract
Hepatocellular carcinoma (HCC) accounts for over 80% of liver cancer cases and is highly malignant, recurrent, drug-resistant, and often diagnosed in the advanced stage. It is clear that early diagnosis and a better understanding of molecular mechanisms contributing to HCC progression is clinically urgent. Metabolic alterations clearly characterize HCC tumors. Numerous clinical parameters currently used to assess liver functions reflect changes in both enzyme activity and metabolites. Indeed, differences in glucose and acetate utilization are used as a valid clinical tool for stratifying patients with HCC. Moreover, increased serum lactate can distinguish HCC from normal subjects, and serum lactate dehydrogenase is used as a prognostic indicator for HCC patients under therapy. Currently, the emerging field of metabolomics that allows metabolite analysis in biological fluids is a powerful method for discovering new biomarkers. Several metabolic targets have been identified by metabolomics approaches, and these could be used as biomarkers in HCC. Moreover, the integration of different omics approaches could provide useful information on the metabolic pathways at the systems level. In this review, we provided an overview of the metabolic characteristics of HCC considering also the reciprocal influences between the metabolism of cancer cells and their microenvironment. Moreover, we also highlighted the interaction between hepatic metabolite production and their serum revelations through metabolomics researches.
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146
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Zhang X, Xu Y, Qian Z, Zheng W, Wu Q, Chen Y, Zhu G, Liu Y, Bian Z, Xu W, Zhang Y, Sun F, Pan Q, Wang J, Du L, Yu Y. circRNA_104075 stimulates YAP-dependent tumorigenesis through the regulation of HNF4a and may serve as a diagnostic marker in hepatocellular carcinoma. Cell Death Dis 2018; 9:1091. [PMID: 30361504 PMCID: PMC6202383 DOI: 10.1038/s41419-018-1132-6] [Citation(s) in RCA: 175] [Impact Index Per Article: 29.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Revised: 09/25/2018] [Accepted: 10/03/2018] [Indexed: 02/07/2023]
Abstract
Some types of circular RNA (circRNA) are aberrantly expressed in human diseases including hepatocellular carcinoma (HCC). However, its regulation mechanism and diagnostic roles are largely unknown. Here, we identified that circRNA_104075 (circ_104075) was highly expressed in HCC tissues, cell lines and serum. Mechanistically, HNF4a bound to the -1409 to -1401 region of the circ_104075 promoter to stimulate the expression of circ_104075. Moreover, circ_104075 acted as a ceRNA to upregulate YAP expression by absorbing miR-582-3p. Interestingly, an N6-methyladenosine (m6A) motif was identified in the 353-357 region of YAP 3'UTR, and this m6A modification was essential for the interaction between miR-582-3p and YAP 3'UTR. Further, the diagnostic performance of circ_104075 was evaluated. The area under the receiver operating characteristic (AUC-ROC) for circ_104075 was 0.973 with a sensitivity of 96.0% and a specificity of 98.3%. Collectively, we determined that circ_104075 was highly expressed in HCC and elucidated its upstream and downstream regulatory mechanisms. circ_104075 additionally has the potential to serve as a new diagnostic biomarker in HCC. Targeting circ_104075 may provide new strategies in HCC diagnosis and therapy.
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Affiliation(s)
- Xiao Zhang
- Department of Clinical Laboratory Medicine, Shanghai Tenth People's Hospital of Tongji University, 200072, Shanghai, China
| | - Yanfeng Xu
- Department of Pharmacy, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, 200071, Shanghai, China
| | - Zijun Qian
- Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, 200071, Shanghai, China
| | - Weisheng Zheng
- School of Life Science and Technology, Shanghai Key Laboratory of Signaling and Disease Research, Tongji University, 200092, Shanghai, China
| | - Qi Wu
- Department of Clinical Laboratory Medicine, Shanghai Tenth People's Hospital of Tongji University, 200072, Shanghai, China
| | - Yan Chen
- Department of Clinical Laboratory Medicine, Shanghai Tenth People's Hospital of Tongji University, 200072, Shanghai, China
| | - Guoqing Zhu
- Department of Clinical Laboratory Medicine, Shanghai Tenth People's Hospital of Tongji University, 200072, Shanghai, China
| | - Ya Liu
- Department of Clinical Laboratory Medicine, Shanghai Tenth People's Hospital of Tongji University, 200072, Shanghai, China
| | - Zhixuan Bian
- Department of Laboratory Medicine, Shanghai Children's Medical Center, Shanghai Jiaotong University School of Medicine, 200127, Shanghai, China
| | - Wen Xu
- Department of Laboratory Medicine, Zhongshan Hospital, Fudan University, 200025, Shanghai, China
| | - Yue Zhang
- Department of Central Laboratory, Shanghai Tenth People's Hospital of Tongji University, 200072, Shanghai, China
| | - Fenyong Sun
- Department of Clinical Laboratory Medicine, Shanghai Tenth People's Hospital of Tongji University, 200072, Shanghai, China
| | - Qiuhui Pan
- Department of Laboratory Medicine, Shanghai Children's Medical Center, Shanghai Jiaotong University School of Medicine, 200127, Shanghai, China
| | - Jiayi Wang
- Department of Clinical Laboratory Medicine, Shanghai Tenth People's Hospital of Tongji University, 200072, Shanghai, China.
| | - Lutao Du
- Department of Clinical Laboratory, The Second Hospital of Shandong University, 250033, Jinan, Shandong, China.
| | - Yongchun Yu
- Shanghai Chest Hospital, Shanghai Jiao Tong University, 200030, Shanghai, China.
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147
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Cox AG, Tsomides A, Yimlamai D, Hwang KL, Miesfeld J, Galli GG, Fowl BH, Fort M, Ma KY, Sullivan MR, Hosios AM, Snay E, Yuan M, Brown KK, Lien EC, Chhangawala S, Steinhauser ML, Asara JM, Houvras Y, Link B, Vander Heiden MG, Camargo FD, Goessling W. Yap regulates glucose utilization and sustains nucleotide synthesis to enable organ growth. EMBO J 2018; 37:embj.2018100294. [PMID: 30348863 DOI: 10.15252/embj.2018100294] [Citation(s) in RCA: 72] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Revised: 09/12/2018] [Accepted: 09/13/2018] [Indexed: 12/14/2022] Open
Abstract
The Hippo pathway and its nuclear effector Yap regulate organ size and cancer formation. While many modulators of Hippo activity have been identified, little is known about the Yap target genes that mediate these growth effects. Here, we show that yap -/- mutant zebrafish exhibit defects in hepatic progenitor potential and liver growth due to impaired glucose transport and nucleotide biosynthesis. Transcriptomic and metabolomic analyses reveal that Yap regulates expression of glucose transporter glut1, causing decreased glucose uptake and use for nucleotide biosynthesis in yap -/- mutants, and impaired glucose tolerance in adults. Nucleotide supplementation improves Yap deficiency phenotypes, indicating functional importance of glucose-fueled nucleotide biosynthesis. Yap-regulated glut1 expression and glucose uptake are conserved in mammals, suggesting that stimulation of anabolic glucose metabolism is an evolutionarily conserved mechanism by which the Hippo pathway controls organ growth. Together, our results reveal a central role for Hippo signaling in glucose metabolic homeostasis.
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Affiliation(s)
- Andrew G Cox
- Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Allison Tsomides
- Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Dean Yimlamai
- Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - Katie L Hwang
- Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.,Harvard/MIT MD-PhD Program, Harvard Medical School, Boston, MA, USA
| | | | - Giorgio G Galli
- Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - Brendan H Fowl
- Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - Michael Fort
- Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Kimberly Y Ma
- Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Mark R Sullivan
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Aaron M Hosios
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Erin Snay
- Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - Min Yuan
- Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Kristin K Brown
- Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Evan C Lien
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA.,Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Sagar Chhangawala
- Weill Cornell Medical College and New York Presbyterian Hospital, New York, NY, USA
| | - Matthew L Steinhauser
- Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.,Harvard Stem Cell Institute, Cambridge, MA, USA.,Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - John M Asara
- Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Yariv Houvras
- Weill Cornell Medical College and New York Presbyterian Hospital, New York, NY, USA
| | - Brian Link
- Medical College of Wisconsin, Milwaukee, WI, USA
| | - Matthew G Vander Heiden
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA.,Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, USA
| | - Fernando D Camargo
- Boston Children's Hospital, Harvard Medical School, Boston, MA, USA.,Harvard Stem Cell Institute, Cambridge, MA, USA
| | - Wolfram Goessling
- Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA .,Harvard Stem Cell Institute, Cambridge, MA, USA.,Broad Institute of MIT and Harvard, Cambridge, MA, USA.,Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, USA.,Harvard-MIT Division of Health Sciences and Technology, Boston, MA, USA
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148
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Abstract
How the organ size is adjusted to the proper size during development and how organs know that they reach the original size during regeneration remain long-standing questions. Based on studies using multiple model organisms and approaches for over 20 years, a consensus has been established that the Hippo pathway plays crucial roles in controlling organ size and maintaining tissue homeostasis. Given the significance of these processes, the dysregulation of the Hippo pathway has also implicated various diseases, such as tissue degeneration and cancer. By regulating the downstream transcriptional coactivators YAP and TAZ, the Hippo pathway coordinates cell proliferation and apoptosis in response to a variety of signals including cell contact inhibition, polarity, mechanical sensation and soluble factors. Since the core components and their functions of the Hippo pathway are evolutionarily conserved, this pathway serves as a global regulator of organ size control. Therefore, further investigation of the regulatory mechanisms will provide physiological insights to better understand tissue homeostasis. In this review, the historical developments and current understandings of the regulatory mechanism of Hippo signaling pathway are discussed.
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Affiliation(s)
- Wantae Kim
- Rare Disease Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 34141, Korea
| | - Eek-Hoon Jho
- Departement of Life Science, University of Seoul, Seoul 02504, Korea
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149
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Abstract
In contrast to normal cells, which use the aerobic oxidation of glucose as their main energy production method, cancer cells prefer to use anaerobic glycolysis to maintain their growth and survival, even under normoxic conditions. Such tumor cell metabolic reprogramming is regulated by factors such as hypoxia and the tumor microenvironment. In addition, dysregulation of certain signaling pathways also contributes to cancer metabolic reprogramming. Among them, the Hippo signaling pathway is a highly conserved tumor suppressor pathway. The core oncosuppressive kinase cascade of Hippo pathway inhibits the nuclear transcriptional co-activators YAP and TAZ, which are the downstream effectors of Hippo pathway and oncogenic factors in many solid cancers. YAP/TAZ function as key nodes of multiple signaling pathways and play multiple regulatory roles in cancer cells. However, their roles in cancer metabolic reprograming are less clear. In the present review, we examine progress in research into the regulatory mechanisms of YAP/TAZ on glucose metabolism, fatty acid metabolism, mevalonate metabolism, and glutamine metabolism in cancer cells. Determining the roles of YAP/TAZ in tumor energy metabolism, particularly in relation to the tumor microenvironment, will provide new strategies and targets for the selective therapy of metabolism-related cancers.
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150
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Abstract
Yes-associated protein (YAP) and transcriptional coactivator with PDZ-binding motif (TAZ) are two homologous transcriptional coactivators that promote cell proliferation, stem cell maintenance, and tissue homeostasis. Under favorable conditions, YAP and TAZ are active to promote cell growth through a transcriptional program mediated by the TEAD family transcription factors. Given the indispensability of cellular energy and metabolites for survival and growth, YAP and TAZ are inhibited when energy level is low. Indeed, glucose, fatty acids, hormones, and other metabolic factors have been recently revealed to regulate YAP and TAZ. Conversely, YAP and TAZ are also involved in metabolism regulation, such as to promote glycolysis, lipogenesis, and glutaminolysis, suggesting YAP and TAZ as emerging nodes in coordinating nutrient availability with cell growth and tissue homeostasis. In this Review, we summarize recent findings and provide a current overview of YAP and TAZ in metabolism by focusing on the role of YAP and TAZ as integrators for metabolic cues and cell growth.
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Affiliation(s)
- Ja Hyun Koo
- Department of Pharmacology and Moores Cancer Center, University of California, San Diego, La Jolla, CA 92093, USA
| | - Kun-Liang Guan
- Department of Pharmacology and Moores Cancer Center, University of California, San Diego, La Jolla, CA 92093, USA.
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