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Connelly JA, Zhang X, Chen Y, Chao Y, Shi Y, Jacob TC, Wang QJ. Protein kinase D2 confers neuroprotection by promoting AKT and CREB activation in ischemic stroke. Neurobiol Dis 2023; 187:106305. [PMID: 37730136 PMCID: PMC10836334 DOI: 10.1016/j.nbd.2023.106305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2023] [Revised: 09/12/2023] [Accepted: 09/16/2023] [Indexed: 09/22/2023] Open
Abstract
Ischemic stroke, constituting 80-90% of all strokes, is a leading cause of death and long-term disability in adults. There is an urgent need to discover new targets and therapies for this devastating condition. Protein kinase D (PKD), as a key target of diacylglycerol involved in ischemic responses, has not been well studied in ischemic stroke, particularly PKD2. In this study, we found that PKD2 expression and activity were significantly upregulated in the ipsilateral side of the brain after transient focal cerebral ischemia, which coincides with the upregulation of PKD2 in primary neurons in response to in vitro ischemia, implying a potential role of PKD2 in neuronal survival in ischemic stroke. Using kinase-dead PKD2 knock-in (PKD2-KI) mice, we examined whether loss of PKD2 activity affected stroke outcomes in mice subjected to 1 h of transient middle cerebral artery occlusion (tMCAO) and 24 h of reperfusion. Our data demonstrated that PKD2-KI mice exhibited larger infarction volumes and worsened neurological scores, indicative of increased brain injury, as compared to the wild-type (WT) mice, confirming a neuroprotective role of PKD2 in ischemia/reperfusion (I/R) injury. Mouse primary neurons obtained from PKD2-KI mice also exhibited increased cell death as compared to the WT neurons when subjected to in vitro ischemia. We have further identified AKT and CREB as two main signaling nodes through which PKD2 regulates neuronal survival during I/R injury. In summary, PKD2 confers neuroprotection in ischemic stroke by promoting AKT and CREB activation and targeted activation of PKD2 may benefit neuronal survival in ischemic stroke.
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Affiliation(s)
- Jaclyn A Connelly
- Department of Pharmacology and Chemical Biology, University of Pittsburgh, Pittsburgh, USA
| | - Xuejing Zhang
- Department of Pharmacology and Chemical Biology, University of Pittsburgh, Pittsburgh, USA
| | - Yuzhou Chen
- Department of Pharmacology and Chemical Biology, University of Pittsburgh, Pittsburgh, USA
| | - Yapeng Chao
- Department of Pharmacology and Chemical Biology, University of Pittsburgh, Pittsburgh, USA
| | - Yejie Shi
- Department of Neurology, University of Pittsburgh, Pittsburgh, USA
| | - Tija C Jacob
- Department of Pharmacology and Chemical Biology, University of Pittsburgh, Pittsburgh, USA
| | - Q Jane Wang
- Department of Pharmacology and Chemical Biology, University of Pittsburgh, Pittsburgh, USA.
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2
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Wen J, Xuan B, Liu Y, Wang L, He L, Meng X, Zhou T, Wang Y. NLRP3 inflammasome-induced pyroptosis in digestive system tumors. Front Immunol 2023; 14:1074606. [PMID: 37081882 PMCID: PMC10110858 DOI: 10.3389/fimmu.2023.1074606] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Accepted: 03/03/2023] [Indexed: 04/07/2023] Open
Abstract
Programmed cell death (PCD) refers to cell death in a manner that depends on specific genes encoding signals or activities. PCD includes apoptosis, pyroptosis, autophagy and necrosis (programmed necrosis). Among these mechanisms, pyroptosis is mediated by the gasdermin family and is accompanied by inflammatory and immune responses. When pathogens or other danger signals are detected, cytokine action and inflammasomes (cytoplasmic multiprotein complexes) lead to pyroptosis. The relationship between pyroptosis and cancer is complex and the effect of pyroptosis on cancer varies in different tissue and genetic backgrounds. On the one hand, pyroptosis can inhibit tumorigenesis and progression; on the other hand, pyroptosis, as a pro-inflammatory death, can promote tumor growth by creating a microenvironment suitable for tumor cell growth. Indeed, the NLRP3 inflammasome is known to mediate pyroptosis in digestive system tumors, such as gastric cancer, pancreatic ductal adenocarcinoma, gallbladder cancer, oral squamous cell carcinoma, esophageal squamous cell carcinoma, in which a pyroptosis-induced cellular inflammatory response inhibits tumor development. The same process occurs in hepatocellular carcinoma and some colorectal cancers. The current review summarizes mechanisms and pathways of pyroptosis, outlining the involvement of NLRP3 inflammasome-mediated pyroptosis in digestive system tumors.
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Affiliation(s)
- Jiexia Wen
- Department of Central Laboratory, The First Hospital of Qinhuangdao, Hebei Medical University, Qinhuangdao, Hebei, China
| | - Bin Xuan
- Department of General Surgery, The First Hospital of Qinhuangdao, Hebei Medical University, Qinhuangdao, Hebei, China
| | - Yang Liu
- Department of General Surgery, The First Hospital of Qinhuangdao, Hebei Medical University, Qinhuangdao, Hebei, China
| | - Liwei Wang
- Department of General Surgery, The First Hospital of Qinhuangdao, Hebei Medical University, Qinhuangdao, Hebei, China
| | - Li He
- Department of General Surgery, The First Hospital of Qinhuangdao, Hebei Medical University, Qinhuangdao, Hebei, China
| | - Xiangcai Meng
- Department of General Surgery, The First Hospital of Qinhuangdao, Hebei Medical University, Qinhuangdao, Hebei, China
| | - Tao Zhou
- Department of General Surgery, The First Hospital of Qinhuangdao, Hebei Medical University, Qinhuangdao, Hebei, China
| | - Yimin Wang
- Department of Central Laboratory, The First Hospital of Qinhuangdao, Hebei Medical University, Qinhuangdao, Hebei, China
- Department of General Surgery, The First Hospital of Qinhuangdao, Hebei Medical University, Qinhuangdao, Hebei, China
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3
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Giansanti MG, Piergentili R. Linking GOLPH3 and Extracellular Vesicles Content-a Potential New Route in Cancer Physiopathology and a Promising Therapeutic Target is in Sight? Technol Cancer Res Treat 2022; 21:15330338221135724. [PMID: 36320176 PMCID: PMC9630892 DOI: 10.1177/15330338221135724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
Golgi phosphoprotein 3 (GOLPH3), a highly conserved phosphatidylinositol 4-phosphate effector, is required for maintenance of Golgi architecture, vesicle trafficking, and Golgi glycosylation. GOLPH3 overexpression has been reported in several human solid cancers, including glioblastoma, breast cancer, colorectal cancer, nonsmall cell lung cancer, epithelial ovarian cancer, prostate cancer, gastric cancer, and hepatocellular carcinoma. Although the molecular mechanisms that link GOLPH3 to tumorigenesis require further investigation, it is likely that GOLPH3 may act by controlling the intracellular movement of key oncogenic molecules, between the Golgi compartments and/or between the Golgi and the endoplasmic reticulum. Indeed, numerous evidence indicates that deregulation of intracellular vesicle trafficking contributes to several aspects of cancer phenotypes. However, a direct and clear link between extracellular vesicle movements and GOLPH3 is still missing. In the past years several lines of evidence have implicated GOLPH3 in the regulation of extracellular vesicle content. Specifically, a new role for GOLPH3 has emerged in controlling the internalization of exosomes containing either oncogenic proteins or noncoding RNAs, especially micro-RNA. Although far from being elucidated, growing evidence indicates that GOLPH3 does not increase quantitatively the excretion of exosomes, but rather regulates the exosome content. In particular, recent data support a role for GOLPH3 for loading specific oncogenic molecules into the exosomes, driving both tumor malignancy and metastasis formation. Additionally, the older literature indirectly implicates GOLPH3 in cancerogenesis through its function in controlling hepatitis C virus secretion, which in turn is linked to hepatocellular carcinoma formation. Thus, GOLPH3 might promote tumorigenesis in unexpected ways, involving both direct and indirect routes. If these data are further confirmed, the spectrum of action of GOLPH3 in tumor formation will significantly expand, indicating this protein as a strong candidate for targeted cancer therapy.
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Affiliation(s)
| | - Roberto Piergentili
- Istituto di Biologia e Patologia Molecolari del CNR
(CNR-IBPM), Roma, Italy,Roberto Piergentili, Istituto di Biologia e
Patologia Molecolari del CNR (CNR-IBPM), Piazzale Aldo Moro 5, 00185, Roma,
Italy.
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4
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Qin F, Chen G, Yu KN, Yang M, Cao W, Kong P, Peng S, Sun M, Nie L, Han W. Golgi Phosphoprotein 3 Mediates Radiation-Induced Bystander Effect via ERK/EGR1/TNF-α Signal Axis. Antioxidants (Basel) 2022; 11:2172. [PMID: 36358544 PMCID: PMC9686538 DOI: 10.3390/antiox11112172] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 10/27/2022] [Accepted: 10/28/2022] [Indexed: 07/30/2023] Open
Abstract
The radiation-induced bystander effect (RIBE), an important non-targeted effect of radiation, has been proposed to be associated with irradiation-caused secondary cancers and reproductive damage beyond the irradiation-treated area after radiotherapy. However, the mechanisms for RIBE signal(s) regulation and transduction are not well understood. In the present work, we found that a Golgi protein, GOLPH3, was involved in RIBE transduction. Knocking down GOLPH3 in irradiated cells blocked the generation of the RIBE, whereas re-expression of GOLPH3 in knockdown cells rescued the RIBE. Furthermore, TNF-α was identified as an important intercellular signal molecule in the GOLPH3-mediated RIBE. A novel signal axis, GOLPH3/ERK/EGR1, was discovered to modulate the transcription of TNF-α and determine the level of released TNF-α. Our findings provide new insights into the molecular mechanism of the RIBE and a potential target for RIBE modulation.
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Affiliation(s)
- Feng Qin
- Anhui Province Key Laboratory of Medical Physics and Technology, Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
- Scinece Island Branch, Graduate School of USTC, Hefei 230026, China
- Institute of Sericultural, Anhui Academy of Agricultural Sciences, Hefei 230061, China
| | - Guodong Chen
- Anhui Province Key Laboratory of Medical Physics and Technology, Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
- Hefei Cancer Hospital, Chinese Academy of Sciences, Hefei 230031, China
| | - Kwan Ngok Yu
- Department of Physics, City University of Hong Kong, Tat Chee Avenue, Kowloon Tong 999077, Hong Kong
- State Key Laboratory in Marine Pollution, City University of Hong Kong, Tat Chee Avenue, Kowloon Tong 999077, Hong Kong
| | - Miaomiao Yang
- Anhui Province Key Laboratory of Medical Physics and Technology, Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
- Scinece Island Branch, Graduate School of USTC, Hefei 230026, China
| | - Wei Cao
- Anhui Province Key Laboratory of Medical Physics and Technology, Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
- Scinece Island Branch, Graduate School of USTC, Hefei 230026, China
| | - Peizhong Kong
- Anhui Province Key Laboratory of Medical Physics and Technology, Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
| | - Shengjie Peng
- Anhui Province Key Laboratory of Medical Physics and Technology, Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
- Scinece Island Branch, Graduate School of USTC, Hefei 230026, China
| | - Mingyu Sun
- Anhui Province Key Laboratory of Medical Physics and Technology, Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
- Scinece Island Branch, Graduate School of USTC, Hefei 230026, China
| | - Lili Nie
- Anhui Province Key Laboratory of Medical Physics and Technology, Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
- Institute of Sericultural, Anhui Academy of Agricultural Sciences, Hefei 230061, China
| | - Wei Han
- Anhui Province Key Laboratory of Medical Physics and Technology, Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
- Institute of Sericultural, Anhui Academy of Agricultural Sciences, Hefei 230061, China
- Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions and School for Radiological and Interdisciplinary Sciences (RAD-X), Soochow University, Suzhou 215006, China
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5
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Spano D, Colanzi A. Golgi Complex: A Signaling Hub in Cancer. Cells 2022; 11:1990. [PMID: 35805075 PMCID: PMC9265605 DOI: 10.3390/cells11131990] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 06/17/2022] [Accepted: 06/19/2022] [Indexed: 02/01/2023] Open
Abstract
The Golgi Complex is the central hub in the endomembrane system and serves not only as a biosynthetic and processing center but also as a trafficking and sorting station for glycoproteins and lipids. In addition, it is an active signaling hub involved in the regulation of multiple cellular processes, including cell polarity, motility, growth, autophagy, apoptosis, inflammation, DNA repair and stress responses. As such, the dysregulation of the Golgi Complex-centered signaling cascades contributes to the onset of several pathological conditions, including cancer. This review summarizes the current knowledge on the signaling pathways regulated by the Golgi Complex and implicated in promoting cancer hallmarks and tumor progression.
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Affiliation(s)
- Daniela Spano
- Institute of Biochemistry and Cell Biology, National Research Council, Via Pietro Castellino 111, 80131 Naples, Italy
| | - Antonino Colanzi
- Institute for Endocrinology and Experimental Oncology “G. Salvatore”, National Research Council, 80131 Naples, Italy;
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6
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Sahu P, Balakrishnan A, Di Martino R, Luini A, Russo D. Role of the Mosaic Cisternal Maturation Machinery in Glycan Synthesis and Oncogenesis. Front Cell Dev Biol 2022; 10:842448. [PMID: 35465326 PMCID: PMC9019784 DOI: 10.3389/fcell.2022.842448] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Accepted: 03/24/2022] [Indexed: 12/20/2022] Open
Abstract
Tumorigenesis is associated with the deregulation of multiple processes, among which the glycosylation of lipids and proteins is one of the most extensively affected. However, in most cases, it remains unclear whether aberrant glycosylation is a cause, a link in the pathogenetic chain, or a mere consequence of tumorigenesis. In other cases, instead, studies have shown that aberrant glycans can promote oncogenesis. To comprehend how aberrant glycans are generated it is necessary to clarify the underlying mechanisms of glycan synthesis at the Golgi apparatus, which are still poorly understood. Important factors that determine the glycosylation potential of the Golgi apparatus are the levels and intra-Golgi localization of the glycosylation enzymes. These factors are regulated by the process of cisternal maturation which transports the cargoes through the Golgi apparatus while retaining the glycosylation enzymes in the organelle. This mechanism has till now been considered a single, house-keeping and constitutive function. Instead, we here propose that it is a mosaic of pathways, each controlling specific set of functionally related glycosylation enzymes. This changes the conception of cisternal maturation from a constitutive to a highly regulated function. In this new light, we discuss potential new groups oncogenes among the cisternal maturation machinery that can contribute to aberrant glycosylation observed in cancer cells. Further, we also discuss the prospects of novel anticancer treatments targeting the intra-Golgi trafficking process, particularly the cisternal maturation mechanism, to control/inhibit the production of pro-tumorigenic glycans.
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Affiliation(s)
| | | | | | - A. Luini
- *Correspondence: A. Luini, ; D. Russo,
| | - D. Russo
- *Correspondence: A. Luini, ; D. Russo,
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7
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Zhu Z, Zhu Q, Cai D, Chen L, Xie W, Bai Y, Luo K. Golgi phosphoprotein 3 promotes the proliferation of gallbladder carcinoma cells via regulation of the NLRP3 inflammasome. Oncol Rep 2021; 45:113. [PMID: 33907835 PMCID: PMC8107641 DOI: 10.3892/or.2021.8064] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Accepted: 04/02/2021] [Indexed: 11/10/2022] Open
Abstract
Golgi phosphoprotein 3 (GOLPH3) has been demonstrated to promote tumor progression in various gastrointestinal malignancies. However, its effects in gallbladder carcinoma (GBC) remain unknown. In the present study, the expression levels of GOLPH3 and nucleotide-binding domain leucine-rich repeat and pyrin domain containing receptor 3 (NLRP3) in human GBC tissues were detected by immunohistochemistry, and the clinical data and survival of these patients were analyzed. Next, whether GOLPH3 could affect tumor proliferation via regulation of the NLRP3 inflammasome was investigated in vitro. The results demonstrated that GOLPH3 could promote GBC cell proliferation, and that it regulated protein expression levels of NLRP3, as well as Caspase-1 P10. Conversely, knockdown of NLRP3 reversed the effects of GOLPH3 overexpression on GBC cell proliferation. GOLPH3 and NLRP3 expression levels were found to be upregulated in GBC tissues and their expression was positively correlated. The expression of GOLPH3 and NLRP3 was associated with the expression of the proliferative marker Ki-67 in tissues, and associated with poor survival, tumor stage, degree of differentiation, depth of invasion, carbohydrate antigen 19-9 and C-reactive protein levels in patients with GBC. In summary, these results indicate that GOLPH3 promotes GBC cell proliferation via a NLRP3/Caspase-1 pathway. GOLPH3 and NLRP3 participate in the process of human GBC growth and may serve as a potential therapeutic targets.
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Affiliation(s)
- Zhencheng Zhu
- Anhui Medical University, Hefei, Anhui 230032, P.R. China
| | - Qingzhou Zhu
- Anhui Medical University, Hefei, Anhui 230032, P.R. China
| | - Dongping Cai
- Department of Laboratory, The 904th Hospital of Joint Logistic Support Force of PLA, Wuxi, Jiangsu 214044, P.R. China
| | - Liang Chen
- Department of Cardiology, The 904th Hospital of Joint Logistic Support Force of PLA, Wuxi, Jiangsu 214044, P.R. China
| | - Weixuan Xie
- Department of Hepatobiliary Surgery, The 904th Hospital of Joint Logistic Support Force of PLA, Wuxi, Jiangsu 214044, P.R. China
| | - Yang Bai
- Department of Hepatobiliary Surgery, The 904th Hospital of Joint Logistic Support Force of PLA, Wuxi, Jiangsu 214044, P.R. China
| | - Kunlun Luo
- Anhui Medical University, Hefei, Anhui 230032, P.R. China
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8
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Zhang X, Connelly J, Chao Y, Wang QJ. Multifaceted Functions of Protein Kinase D in Pathological Processes and Human Diseases. Biomolecules 2021; 11:biom11030483. [PMID: 33807058 PMCID: PMC8005150 DOI: 10.3390/biom11030483] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 03/13/2021] [Accepted: 03/15/2021] [Indexed: 02/06/2023] Open
Abstract
Protein kinase D (PKD) is a family of serine/threonine protein kinases operating in the signaling network of the second messenger diacylglycerol. The three family members, PKD1, PKD2, and PKD3, are activated by a variety of extracellular stimuli and transduce cell signals affecting many aspects of basic cell functions including secretion, migration, proliferation, survival, angiogenesis, and immune response. Dysregulation of PKD in expression and activity has been detected in many human diseases. Further loss- or gain-of-function studies at cellular levels and in animal models provide strong support for crucial roles of PKD in many pathological conditions, including cancer, metabolic disorders, cardiac diseases, central nervous system disorders, inflammatory diseases, and immune dysregulation. Complexity in enzymatic regulation and function is evident as PKD isoforms may act differently in different biological systems and disease models, and understanding the molecular mechanisms underlying these differences and their biological significance in vivo is essential for the development of safer and more effective PKD-targeted therapies. In this review, to provide a global understanding of PKD function, we present an overview of the PKD family in several major human diseases with more focus on cancer-associated biological processes.
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9
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Arriagada C, Cavieres VA, Luchsinger C, González AE, Muñoz VC, Cancino J, Burgos PV, Mardones GA. GOLPH3 Regulates EGFR in T98G Glioblastoma Cells by Modulating Its Glycosylation and Ubiquitylation. Int J Mol Sci 2020; 21:E8880. [PMID: 33238647 PMCID: PMC7700535 DOI: 10.3390/ijms21228880] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 11/02/2020] [Accepted: 11/06/2020] [Indexed: 12/13/2022] Open
Abstract
Protein trafficking is altered when normal cells acquire a tumor phenotype. A key subcellular compartment in regulating protein trafficking is the Golgi apparatus, but its role in carcinogenesis is still not well defined. Golgi phosphoprotein 3 (GOLPH3), a peripheral membrane protein mostly localized at the trans-Golgi network, is overexpressed in several tumor types including glioblastoma multiforme (GBM), the most lethal primary brain tumor. Moreover, GOLPH3 is currently considered an oncoprotein, however its precise function in GBM is not fully understood. Here, we analyzed in T98G cells of GBM, which express high levels of epidermal growth factor receptor (EGFR), the effect of stable RNAi-mediated knockdown of GOLPH3. We found that silencing GOLPH3 caused a significant reduction in the proliferation of T98G cells and an unexpected increase in total EGFR levels, even at the cell surface, which was however less prone to ligand-induced autophosphorylation. Furthermore, silencing GOLPH3 decreased EGFR sialylation and fucosylation, which correlated with delayed ligand-induced EGFR downregulation and its accumulation at endo-lysosomal compartments. Finally, we found that EGF failed at promoting EGFR ubiquitylation when the levels of GOLPH3 were reduced. Altogether, our results show that GOLPH3 in T98G cells regulates the endocytic trafficking and activation of EGFR likely by affecting its extent of glycosylation and ubiquitylation.
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Affiliation(s)
- Cecilia Arriagada
- Department of Physiology, School of Medicine and Center for Interdisciplinary Studies of the Nervous System (CISNe), Universidad Austral de Chile, Valdivia 5090000, Chile; (C.A.); (V.A.C.); (C.L.); (A.E.G.); (V.C.M.)
| | - Viviana A. Cavieres
- Department of Physiology, School of Medicine and Center for Interdisciplinary Studies of the Nervous System (CISNe), Universidad Austral de Chile, Valdivia 5090000, Chile; (C.A.); (V.A.C.); (C.L.); (A.E.G.); (V.C.M.)
| | - Charlotte Luchsinger
- Department of Physiology, School of Medicine and Center for Interdisciplinary Studies of the Nervous System (CISNe), Universidad Austral de Chile, Valdivia 5090000, Chile; (C.A.); (V.A.C.); (C.L.); (A.E.G.); (V.C.M.)
| | - Alexis E. González
- Department of Physiology, School of Medicine and Center for Interdisciplinary Studies of the Nervous System (CISNe), Universidad Austral de Chile, Valdivia 5090000, Chile; (C.A.); (V.A.C.); (C.L.); (A.E.G.); (V.C.M.)
| | - Vanessa C. Muñoz
- Department of Physiology, School of Medicine and Center for Interdisciplinary Studies of the Nervous System (CISNe), Universidad Austral de Chile, Valdivia 5090000, Chile; (C.A.); (V.A.C.); (C.L.); (A.E.G.); (V.C.M.)
| | - Jorge Cancino
- Center for Cell Biology and Biomedicine, School of Science and Medicine, Universidad San Sebastián, Santiago 7510235, Chile; (J.C.); (P.V.B.)
| | - Patricia V. Burgos
- Center for Cell Biology and Biomedicine, School of Science and Medicine, Universidad San Sebastián, Santiago 7510235, Chile; (J.C.); (P.V.B.)
- Center for Aging and Regeneration (CARE), Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago 8331150, Chile
| | - Gonzalo A. Mardones
- Department of Physiology, School of Medicine and Center for Interdisciplinary Studies of the Nervous System (CISNe), Universidad Austral de Chile, Valdivia 5090000, Chile; (C.A.); (V.A.C.); (C.L.); (A.E.G.); (V.C.M.)
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10
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Yu T, An Q, Cao XL, Yang H, Cui J, Li ZJ, Xiao G. GOLPH3 inhibition reverses oxaliplatin resistance of colon cancer cells via suppression of PI3K/AKT/mTOR pathway. Life Sci 2020; 260:118294. [PMID: 32818544 DOI: 10.1016/j.lfs.2020.118294] [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: 04/15/2020] [Revised: 08/09/2020] [Accepted: 08/14/2020] [Indexed: 12/15/2022]
Abstract
OBJECTIVE To explore whether GOLPH3 regulated oxaliplatin (L-OHP) resistance of colon cancer cells via PI3K/AKT/mTOR pathway. METHODS HCT116/L-OHP cells were divided into Blank, Control/GOLPH3 shRNA, BEZ235 (a PI3K/AKT/mTOR inhibitor), and GOLPH3 + BEZ235 groups followed by the detection with MTT, soft agar colony formation, flow cytometry and TUNEL assays. Mice bearing HCT116/L-OHP xenografts were randomized into Control, L-OHP, NC/GOLPH3 shRNA, L-OHP + NC/GOLPH3 shRNA groups. The expressions of Ki67, Caspase-3, and PI3K/AKT/mTOR pathway proteins were examined by immunohistochemistry. RESULTS HCT116/L-OHP cells had increased GOLPH3 expression compared to HCT116 cells, which positively regulated PI3K/AKT/mTOR pathway in HCT116/L-OHP cells. BEZ235 declined IC50 of HCT116/L-OHP cells to L-OHP, decreased the expressions of ABCB1, ABCC1, ABCG2, ATP7A, ATP7B, MATE1, p-gp, MRP1 and BCRP, induced cell apoptosis, reduced cell proliferation, and arrested cells at G0/G1, which was reversed by GOLPH3 overexpression. L-OHP and GOLPH3 shRNA decreased tumor volume and reduced expression of Ki67 in tumor tissues with the increased Caspase-3. Meanwhile, the combined treatment had the better treatment effect. CONCLUSION GOLPH3 inhibition reduced proliferation and promoted apoptosis of HCT116/L-OHP cells, and also reversed the L-OHP resistance of HCT116/L-OHP, which may be associated with the suppression of P13K/AKT/mTOR pathway.
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Affiliation(s)
- Tao Yu
- Department of General Surgery, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, PR China
| | - Qi An
- Department of General Surgery, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, PR China
| | - Xiang-Long Cao
- Department of General Surgery, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, PR China
| | - Hua Yang
- Department of General Surgery, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, PR China
| | - Jian Cui
- Department of General Surgery, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, PR China
| | - Zi-Jian Li
- Department of General Surgery, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, PR China
| | - Gang Xiao
- Department of General Surgery, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, PR China.
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11
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Hu P, Wang K, Zhou D, Wang L, Zhao M, Wang W, Zhang Y, Liu Y, Yu R, Zhou X. GOLPH3 Regulates Exosome miRNA Secretion in Glioma Cells. J Mol Neurosci 2020; 70:1257-1266. [PMID: 32227282 DOI: 10.1007/s12031-020-01535-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Accepted: 03/12/2020] [Indexed: 02/07/2023]
Abstract
We aimed to examine whether golgi protein GOLPH3 could affect the secretion of glioma cell-derived exosomes. The exosomes were extracted by ultra-centrifugation from the supernatant of U251 and U87 cell cultures and identified by transmission electron microscopy (TEM), Malvern analyzer, and western blot. The quantity of exosomes was examined by measuring the total protein levels and the number of multiple vesicle bodies (MVBs), the source of exosomes. The exosome miRNAs were analyzed by high-throughput sequencing followed by GO and KEGG analysis, and validated by qRT-PCR. GOLPH3 could not affect the total protein levels of exosomes and the number of MVBs. However, we found 149 differentially expressed miRNAs in exosomes between vector and GOLPH3 over-expression group, and 14 miRNAs were only examined in GOLPH3 over-expression cells. The predicted target genes of these miRNAs had functions in binding and catalytic activity, which were enriched in the pathways of endocytosis, RNA transportation, thyroid hormone signaling and miRNAs in cancer. GOLPH3 could not affect the quantity of exosomes, but rather contribute to miRNA expression in exosomes, which may play some functions in the promotion effect of GOLPH3 on glioma development.
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Affiliation(s)
- Pengfei Hu
- Institute of Nervous System Diseases, Xuzhou Medical University, 84 West Huai-hai Road, Xuzhou, Jiangsu, 221002, People's Republic of China.,Department of Neurosurgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China.,The Graduate School, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Kai Wang
- Institute of Nervous System Diseases, Xuzhou Medical University, 84 West Huai-hai Road, Xuzhou, Jiangsu, 221002, People's Republic of China.,Department of Neurosurgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China.,The Graduate School, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Ding Zhou
- Institute of Nervous System Diseases, Xuzhou Medical University, 84 West Huai-hai Road, Xuzhou, Jiangsu, 221002, People's Republic of China.,Department of Neurosurgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China.,The Graduate School, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Liang Wang
- Department of Bioinformatics, School of Medical Informatics and Engineering, Xuzhou Medical University, Xuzhou, Jiangsu, China.,Jiangsu Key Lab of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, Jiangsu Province, China
| | - Min Zhao
- Institute of Nervous System Diseases, Xuzhou Medical University, 84 West Huai-hai Road, Xuzhou, Jiangsu, 221002, People's Republic of China.,Department of Neurosurgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China.,The Graduate School, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Weibing Wang
- Institute of Nervous System Diseases, Xuzhou Medical University, 84 West Huai-hai Road, Xuzhou, Jiangsu, 221002, People's Republic of China.,Department of Neurosurgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China.,The Graduate School, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Yu Zhang
- Institute of Nervous System Diseases, Xuzhou Medical University, 84 West Huai-hai Road, Xuzhou, Jiangsu, 221002, People's Republic of China.,Department of Neurosurgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China.,The Graduate School, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Yushuai Liu
- Institute of Nervous System Diseases, Xuzhou Medical University, 84 West Huai-hai Road, Xuzhou, Jiangsu, 221002, People's Republic of China.,Department of Neurosurgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China.,The Graduate School, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Rutong Yu
- Institute of Nervous System Diseases, Xuzhou Medical University, 84 West Huai-hai Road, Xuzhou, Jiangsu, 221002, People's Republic of China.,Department of Neurosurgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Xiuping Zhou
- Institute of Nervous System Diseases, Xuzhou Medical University, 84 West Huai-hai Road, Xuzhou, Jiangsu, 221002, People's Republic of China. .,Department of Neurosurgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China.
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12
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Oncogenic Roles of GOLPH3 in the Physiopathology of Cancer. Int J Mol Sci 2020; 21:ijms21030933. [PMID: 32023813 PMCID: PMC7037725 DOI: 10.3390/ijms21030933] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2020] [Revised: 01/28/2020] [Accepted: 01/29/2020] [Indexed: 02/06/2023] Open
Abstract
Golgi phosphoprotein 3 (GOLPH3), a Phosphatidylinositol 4-Phosphate [PI(4)P] effector at the Golgi, is required for Golgi ribbon structure maintenance, vesicle trafficking and Golgi glycosylation. GOLPH3 has been validated as an oncoprotein through combining integrative genomics with clinopathological and functional analyses. It is frequently amplified in several solid tumor types including melanoma, lung cancer, breast cancer, glioma, and colorectal cancer. Overexpression of GOLPH3 correlates with poor prognosis in multiple tumor types including 52% of breast cancers and 41% to 53% of glioblastoma. Roles of GOLPH3 in tumorigenesis may correlate with several cellular activities including: (i) regulating Golgi-to-plasma membrane trafficking and contributing to malignant secretory phenotypes; (ii) controlling the internalization and recycling of key signaling molecules or increasing the glycosylation of cancer relevant glycoproteins; and (iii) influencing the DNA damage response and maintenance of genomic stability. Here we summarize current knowledge on the oncogenic pathways involving GOLPH3 in human cancer, GOLPH3 influence on tumor metabolism and surrounding stroma, and its possible role in tumor metastasis formation.
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13
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The Great Escape: how phosphatidylinositol 4-kinases and PI4P promote vesicle exit from the Golgi (and drive cancer). Biochem J 2019; 476:2321-2346. [DOI: 10.1042/bcj20180622] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Revised: 08/06/2019] [Accepted: 08/12/2019] [Indexed: 12/13/2022]
Abstract
Abstract
Phosphatidylinositol 4-phosphate (PI4P) is a membrane glycerophospholipid and a major regulator of the characteristic appearance of the Golgi complex as well as its vesicular trafficking, signalling and metabolic functions. Phosphatidylinositol 4-kinases, and in particular the PI4KIIIβ isoform, act in concert with PI4P to recruit macromolecular complexes to initiate the biogenesis of trafficking vesicles for several Golgi exit routes. Dysregulation of Golgi PI4P metabolism and the PI4P protein interactome features in many cancers and is often associated with tumour progression and a poor prognosis. Increased expression of PI4P-binding proteins, such as GOLPH3 or PITPNC1, induces a malignant secretory phenotype and the release of proteins that can remodel the extracellular matrix, promote angiogenesis and enhance cell motility. Aberrant Golgi PI4P metabolism can also result in the impaired post-translational modification of proteins required for focal adhesion formation and cell–matrix interactions, thereby potentiating the development of aggressive metastatic and invasive tumours. Altered expression of the Golgi-targeted PI 4-kinases, PI4KIIIβ, PI4KIIα and PI4KIIβ, or the PI4P phosphate Sac1, can also modulate oncogenic signalling through effects on TGN-endosomal trafficking. A Golgi trafficking role for a PIP 5-kinase has been recently described, which indicates that PI4P is not the only functionally important phosphoinositide at this subcellular location. This review charts new developments in our understanding of phosphatidylinositol 4-kinase function at the Golgi and how PI4P-dependent trafficking can be deregulated in malignant disease.
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14
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Wang J, Cai C, Nie D, Song X, Sun G, Zhi T, Li B, Qi J, Zhang J, Chen H, Shi Q, Yu R. FRK suppresses human glioma growth by inhibiting ITGB1/FAK signaling. Biochem Biophys Res Commun 2019; 517:588-595. [PMID: 31395336 DOI: 10.1016/j.bbrc.2019.07.059] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2019] [Accepted: 07/18/2019] [Indexed: 02/07/2023]
Abstract
Fyn-related kinase (FRK), a member of the Src-related tyrosine kinase family, functions as a tumor suppressor in several malignancies. We previously showed that FRK overexpression inhibited the growth of glioma cells. However, it is unknown whether FRK is equally effective against intracranial glioma in vivo, and the mechanism by which FRK influences glioma cell growth remains unclear. In this study, we found that tumor volume was reduced by about one-third in mice with FRK overexpression, which showed improved survival relative to controls. Immunofluorescence analysis revealed that FRK overexpression inhibited glioma cell proliferation and induced their apoptosis. Importantly, in vitro we further found that FRK decreased the expression of integrin subunit β1 (ITGB1) at both the mRNA and protein levels. FRK also inhibited transactivation by ITGB1, resulting in the suppression of its target proteins AKT and focal adhesion kinase (FAK). ITGB1 overexpression promoted glioma cell growth and partially reduced FRK-induced growth suppression. These results indicate that FRK inhibits human glioma growth via regulating ITGB1/FAK signaling and provide a potential therapeutic target for the treatment of glioma.
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Affiliation(s)
- Jun Wang
- Institute of Nervous System Diseases, Xuzhou Medical University, 84 West Huai-hai Road, Xuzhou, 221002, Jiangsu, PR China; Department of Neurosurgery, The First People's Hospital of Yancheng, The Forth Affiliated Hospital of Nantong University, Yancheng, 224006, Jiangsu, PR China
| | - Chang Cai
- Department of Neurosurgery, Suqian First Hospital, 120 Su Zhi Road, Suqian, 223800, Jiangsu, PR China
| | - Dekang Nie
- Department of Neurosurgery, The First People's Hospital of Yancheng, The Forth Affiliated Hospital of Nantong University, Yancheng, 224006, Jiangsu, PR China
| | - Xu Song
- Department of Neurosurgery, The Affiliated Hospital of Xuzhou Medical University, 99 West Huai-hai Road, Xuzhou, 221002, Jiangsu, PR China
| | - Guan Sun
- Department of Neurosurgery, The First People's Hospital of Yancheng, The Forth Affiliated Hospital of Nantong University, Yancheng, 224006, Jiangsu, PR China
| | - Tongle Zhi
- Department of Neurosurgery, The First People's Hospital of Yancheng, The Forth Affiliated Hospital of Nantong University, Yancheng, 224006, Jiangsu, PR China
| | - Bing Li
- Department of Neurosurgery, The First People's Hospital of Yancheng, The Forth Affiliated Hospital of Nantong University, Yancheng, 224006, Jiangsu, PR China
| | - Juxing Qi
- Department of Neurosurgery, The First People's Hospital of Yancheng, The Forth Affiliated Hospital of Nantong University, Yancheng, 224006, Jiangsu, PR China
| | - Jianyong Zhang
- Department of Neurosurgery, Suqian First Hospital, 120 Su Zhi Road, Suqian, 223800, Jiangsu, PR China
| | - Honglin Chen
- Department of Neurosurgery, Suqian First Hospital, 120 Su Zhi Road, Suqian, 223800, Jiangsu, PR China
| | - Qiong Shi
- Department of Laboratory Medicine, The Affiliated Hospital of Xuzhou Medical University, 99 West Huai-hai Road, Xuzhou, 221002, Jiangsu, PR China.
| | - Rutong Yu
- Institute of Nervous System Diseases, Xuzhou Medical University, 84 West Huai-hai Road, Xuzhou, 221002, Jiangsu, PR China; Department of Neurosurgery, The Affiliated Hospital of Xuzhou Medical University, 99 West Huai-hai Road, Xuzhou, 221002, Jiangsu, PR China.
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15
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Wang X, Wang Z, Zhang Y, Wang Y, Zhang H, Xie S, Xie P, Yu R, Zhou X. Golgi phosphoprotein 3 sensitizes the tumour suppression effect of gefitinib on gliomas. Cell Prolif 2019; 52:e12636. [PMID: 31094020 PMCID: PMC6669003 DOI: 10.1111/cpr.12636] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2018] [Revised: 04/22/2019] [Accepted: 04/24/2019] [Indexed: 12/15/2022] Open
Abstract
Objectives We previously reported that Golgi phosphoprotein 3 (GOLPH3) promotes glioma progression by inhibiting EGFR endocytosis and degradation, leading to EGFR accumulation and PI3K‐AKT pathway over‐activation. In the current study, we examine whether GOLPH3 affects the response of glioma cells to gefitinib, an EGFR selective inhibitor. Materials and Methods The expression of GOLPH3 and EGFR in glioma cells was detected by immunofluorescence and immunoblotting. The cell viability or growth in vitro was determined by CCK‐8, EdU incorporation and clonogenic assays. The primary glioma cells were cultured by trypsin and mechanical digestion. The transwell invasion assay was used to examine the primary glioma cell motility. Intracranial glioma model in nude mice were established to explore the sensitivity of gefitinib to GOLPH3 high cancer cells in vivo. Results Both the immortalized and primary glioma cells with GOLPH3 over‐expression hold higher EGFR protein levels on the cell membrane and exhibited higher sensitivity to gefitinib. In addition, primary glioma cells with higher GOLPH3 level exhibited stronger proliferation behaviour. Importantly, GOLPH3 enhanced the anti‐tumour effect of gefitinib in vivo. Consistently, after gefitinib treatment, tumours derived from GOLPH3 over‐expression cells exhibited lower Ki67‐positive and higher cleaved caspase‐3–positive cells than control tumours. Conclusions Our results demonstrate that GOLPH3 increases the sensitivity of glioma cells to gefitinib. Our study provides foundation for further exploring whether GOLPH3 high gliomas will be more sensitive to anti‐EGFR therapy in clinic and give ideas for developing new possible treatments for individual glioma patients.
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Affiliation(s)
- Xu Wang
- Institute of Nervous System Diseases, Xuzhou Medical University, Xuzhou, Jiangsu, China.,Department of Neurosurgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Zhaohao Wang
- Institute of Nervous System Diseases, Xuzhou Medical University, Xuzhou, Jiangsu, China.,Department of Neurosurgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China.,The Graduate School, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Yu Zhang
- Institute of Nervous System Diseases, Xuzhou Medical University, Xuzhou, Jiangsu, China.,Department of Neurosurgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China.,The Graduate School, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Yan Wang
- Institute of Nervous System Diseases, Xuzhou Medical University, Xuzhou, Jiangsu, China.,Department of Neurosurgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Hao Zhang
- The Graduate School, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Shao Xie
- Department of Neurosurgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Peng Xie
- The Graduate School, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Rutong Yu
- Institute of Nervous System Diseases, Xuzhou Medical University, Xuzhou, Jiangsu, China.,Department of Neurosurgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China.,Jiangsu Center for the Collaboration and Innovation of Cancer Biotherapy, Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Xiuping Zhou
- Institute of Nervous System Diseases, Xuzhou Medical University, Xuzhou, Jiangsu, China.,Department of Neurosurgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China.,Jiangsu Center for the Collaboration and Innovation of Cancer Biotherapy, Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu, China
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16
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Ding X, Deng G, Liu J, Liu B, Yuan F, Yang X, Chen Q. GOLM1 silencing inhibits the proliferation and motility of human glioblastoma cells via the Wnt/β-catenin signaling pathway. Brain Res 2019; 1717:117-126. [PMID: 30935831 DOI: 10.1016/j.brainres.2019.03.035] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Revised: 02/26/2019] [Accepted: 03/28/2019] [Indexed: 11/28/2022]
Abstract
Golgi membrane protein 1 (GOLM1) is a type II transmembrane protein located in the cis- and medial-Golgi. Due to its function as an oncogene and proprotein convertase (PC) consensus site, GOLM1 will play a vital role in gene-targeted therapies and serve as a candidate tumor biomarker. However, few studies have explored its correlation with glioblastoma (GBM) progression. In this study, we detected the overexpression of the GOLM1 mRNA and protein in clinical GBM samples. The level of secreted GOLM1 in the serum from patients with GBM was also abnormally elevated, as determined by an Elisa. Then we utilized small interfering RNAs (siRNAs) to silence GOLM1 expression in GBM U87 and U251 cells. After silencing GOLM1 expression, the proliferation of cells decreased, the cell cycle was arrested in G1/S phase, and tumor cell motility was also inhibited. Moreover, the levels of proliferation-associated proteins and epithelial-mesenchymal transition (EMT)-related markers were also altered. Additionally, the Wnt/β-catenin signaling pathway was significantly suppressed, particularly the nuclear translocation of β-catenin. Knockdown of GOLM1 also inhibits xenograft tumor growth in nude mouse models.GOLM1 acts as a critical oncogene in GBM by promoting cell proliferation, migration and invasion. Its mechanism may be related to the Wnt/β-catenin signaling pathway. GOLM1 also exhibits great potential as a biomarker for GBM.
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Affiliation(s)
- Xiang Ding
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Hubei 430060, China; Brain Tumor Clinical Center of Wuhan, Hubei 430060, China
| | - Gang Deng
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Hubei 430060, China; Brain Tumor Clinical Center of Wuhan, Hubei 430060, China
| | - Junhui Liu
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Hubei 430060, China; Brain Tumor Clinical Center of Wuhan, Hubei 430060, China
| | - Baohui Liu
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Hubei 430060, China; Brain Tumor Clinical Center of Wuhan, Hubei 430060, China
| | - Fan'en Yuan
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Hubei 430060, China; Brain Tumor Clinical Center of Wuhan, Hubei 430060, China
| | - Xue Yang
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Hubei 430060, China; Brain Tumor Clinical Center of Wuhan, Hubei 430060, China
| | - Qianxue Chen
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Hubei 430060, China; Brain Tumor Clinical Center of Wuhan, Hubei 430060, China.
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17
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Kuna RS, Field SJ. GOLPH3: a Golgi phosphatidylinositol(4)phosphate effector that directs vesicle trafficking and drives cancer. J Lipid Res 2018; 60:269-275. [PMID: 30266835 DOI: 10.1194/jlr.r088328] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2018] [Revised: 09/25/2018] [Indexed: 12/17/2022] Open
Abstract
GOLPH3 is a peripheral membrane protein localized to the Golgi and its vesicles, but its purpose had been unclear. We found that GOLPH3 binds specifically to the phosphoinositide phosphatidylinositol(4)phosphate [PtdIns(4)P], which functions at the Golgi to promote vesicle exit for trafficking to the plasma membrane. PtdIns(4)P is enriched at the trans-Golgi and so recruits GOLPH3. Here, a GOLPH3 complex is formed when it binds to myosin18A (MYO18A), which binds F-actin. This complex generates a pulling force to extract vesicles from the Golgi; interference with this GOLPH3 complex results in dramatically reduced vesicle trafficking. The GOLPH3 complex has been identified as a driver of cancer in humans, likely through multiple mechanisms that activate secretory trafficking. In this review, we summarize the literature that identifies the nature of the GOLPH3 complex and its role in cancer. We also consider the GOLPH3 complex as a hub with the potential to reveal regulation of the Golgi and suggest the possibility of GOLPH3 complex inhibition as a therapeutic approach in cancer.
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Affiliation(s)
- Ramya S Kuna
- Division of Endocrinology and Metabolism, Department of Medicine, University of California at San Diego, La Jolla, CA
| | - Seth J Field
- Division of Endocrinology and Metabolism, Department of Medicine, University of California at San Diego, La Jolla, CA
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18
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Zhou X, Xie S, Wu S, Qi Y, Wang Z, Zhang H, Lu D, Wang X, Dong Y, Liu G, Yang D, Shi Q, Bian W, Yu R. Golgi phosphoprotein 3 promotes glioma progression via inhibiting Rab5-mediated endocytosis and degradation of epidermal growth factor receptor. Neuro Oncol 2018; 19:1628-1639. [PMID: 28575494 DOI: 10.1093/neuonc/nox104] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Background Golgi phosphoprotein 3 (GOLPH3) is associated with worse prognosis of gliomas, but its role and mechanism in glioma progression remain largely unknown. This study aimed to explore the role and mechanism of GOLPH3 in glioma progression. Methods The expression of GOLPH3 in glioma tissues was detected by quantitative PCR, immunoblotting, and immunohistochemistry. GOLPH3's effect on glioma progression was examined using cell growth assays and an intracranial glioma model. The effect of GOLPH3 on epidermal growth factor receptor (EGFR) stability, endocytosis, and degradation was examined by immunoblotting and immunofluorescence. The activity of Rab5 was checked by glutathione S-transferase pulldown assay. Results GOLPH3 was upregulated in gliomas, and its downregulation inhibited glioma cell proliferation both in vitro and in vivo. Furthermore, GOLPH3 depletion dampened EGFR signaling by enhancing EGFR endocytosis, driving EGFR into late endosome and promoting lysosome-mediated degradation. Interestingly, GOLPH3 bound to Rab5 and GOLPH3 downregulation promoted the activation of Rab5. In addition, Rab5 depletion abolished the effect of GOLPH3 on EGFR endocytosis and degradation. Conclusion Our results imply that GOLPH3 promotes glioma cell proliferation via inhibiting Rab5-mediated endocytosis and degradation of EGFR, thereby activating the phosphatidylinositol-3 kinase (PI3K)-Akt-mammalian target of rapamycin (mTOR) signaling pathway. We find a new mechanism by which GOLPH3 promotes tumor progression through regulating cell surface receptor trafficking. Extensive and intensive understanding of the role of GOLPH3 in glioma progression may provide an opportunity to develop a novel molecular therapeutic target for gliomas.
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Affiliation(s)
- Xiuping Zhou
- Institute of Nervous System Diseases, Xuzhou Medical University, Xuzhou, Jiangsu, China; Brain Hospital, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China; The Graduate School, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Shao Xie
- Institute of Nervous System Diseases, Xuzhou Medical University, Xuzhou, Jiangsu, China; Brain Hospital, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China; The Graduate School, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Shishuang Wu
- Institute of Nervous System Diseases, Xuzhou Medical University, Xuzhou, Jiangsu, China; Brain Hospital, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China; The Graduate School, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Yanhua Qi
- Institute of Nervous System Diseases, Xuzhou Medical University, Xuzhou, Jiangsu, China; Brain Hospital, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China; The Graduate School, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Zhaohao Wang
- Institute of Nervous System Diseases, Xuzhou Medical University, Xuzhou, Jiangsu, China; Brain Hospital, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China; The Graduate School, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Hao Zhang
- Institute of Nervous System Diseases, Xuzhou Medical University, Xuzhou, Jiangsu, China; Brain Hospital, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China; The Graduate School, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Dong Lu
- Institute of Nervous System Diseases, Xuzhou Medical University, Xuzhou, Jiangsu, China; Brain Hospital, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China; The Graduate School, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Xu Wang
- Institute of Nervous System Diseases, Xuzhou Medical University, Xuzhou, Jiangsu, China; Brain Hospital, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China; The Graduate School, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Yu Dong
- Institute of Nervous System Diseases, Xuzhou Medical University, Xuzhou, Jiangsu, China; Brain Hospital, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China; The Graduate School, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Guanzheng Liu
- Institute of Nervous System Diseases, Xuzhou Medical University, Xuzhou, Jiangsu, China; Brain Hospital, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China; The Graduate School, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Dongxu Yang
- Institute of Nervous System Diseases, Xuzhou Medical University, Xuzhou, Jiangsu, China; Brain Hospital, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China; The Graduate School, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Qiong Shi
- Institute of Nervous System Diseases, Xuzhou Medical University, Xuzhou, Jiangsu, China; Brain Hospital, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China; The Graduate School, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Wenbin Bian
- Institute of Nervous System Diseases, Xuzhou Medical University, Xuzhou, Jiangsu, China; Brain Hospital, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China; The Graduate School, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Rutong Yu
- Institute of Nervous System Diseases, Xuzhou Medical University, Xuzhou, Jiangsu, China; Brain Hospital, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China; The Graduate School, Xuzhou Medical University, Xuzhou, Jiangsu, China
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19
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Wu S, Fu J, Dong Y, Yi Q, Lu D, Wang W, Qi Y, Yu R, Zhou X. GOLPH3 promotes glioma progression via facilitating JAK2-STAT3 pathway activation. J Neurooncol 2018; 139:269-279. [PMID: 29713848 DOI: 10.1007/s11060-018-2884-7] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Accepted: 04/23/2018] [Indexed: 12/13/2022]
Abstract
INTRODUCTION Our recent work reported that GOLPH3 promotes glioma progression via inhibiting endocytosis and degradation of EGFR. The current study aimed to explore the potential regulating mechanism of GOLPH3 on JAK2-STAT3 signaling, a downstream effector of EGFR, in glioma progression. METHODS The expression of JAK2, STAT3 and GOLPH3 in glioma tissues was detected by western blotting, tissue microarray and immunohistochemistry. The U251 and U87 cells with GOLPH3 down-regulation or over-expression were generated by lentivirus system. The effects of GOLPH3 on the activity of JAK2 and STAT3 were detected by western blotting and reverse transcription polymerase chain reaction. Co-immunoprecipitation was used to detect the association of GOLPH3 with JAK2 and STAT3. Cell proliferation was detected by CCK8 and EdU assay. RESULTS The level of JAK2, STAT3 and GOLPH3 were significantly up-regulated and exhibited pairwise correlation in human glioma tissues. The level of p-JAK2 and p-STAT3, as well as the mRNA and protein levels of cyclin D1 and c-myc, two target genes of STAT3, decreased after GOLPH3 down-regulation, while they increased after GOLPH3 over-expression both in U251 and U87 cells. Interestingly, GOLPH3, JAK2 and STAT3 existed in the same protein complex and GOLPH3 affected the interaction of JAK2 and STAT3. Importantly, down-regulation of STAT3 partially abolished cell proliferation induced by GOLPH3 over-expression. CONCLUSIONS GOLPH3 may act as a scaffold protein to regulate JAK2-STAT3 interaction and then its activation, which therefore mediates the effect of GOLPH3 on cell proliferation.
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Affiliation(s)
- Shishuang Wu
- The Graduate School, Xuzhou Medical University, Xuzhou, 221002, Jiangsu, People's Republic of China
| | - Jiale Fu
- The Graduate School, Xuzhou Medical University, Xuzhou, 221002, Jiangsu, People's Republic of China
| | - Yu Dong
- The Graduate School, Xuzhou Medical University, Xuzhou, 221002, Jiangsu, People's Republic of China
| | - Qinghao Yi
- The Graduate School, Xuzhou Medical University, Xuzhou, 221002, Jiangsu, People's Republic of China
| | - Dong Lu
- Institute of Nervous System Diseases, Xuzhou Medical University, 84 West Huai-hai Road, Xuzhou, 221002, Jiangsu, People's Republic of China.,Brain Hospital, Affiliated Hospital of Xuzhou Medical University, 99 West Huai-hai Road, Xuzhou, 221002, Jiangsu, People's Republic of China
| | - Weibing Wang
- The Graduate School, Xuzhou Medical University, Xuzhou, 221002, Jiangsu, People's Republic of China
| | - Yanhua Qi
- The Graduate School, Xuzhou Medical University, Xuzhou, 221002, Jiangsu, People's Republic of China.,Emergency Center of the Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221002, Jiangsu, People's Republic of China
| | - Rutong Yu
- Institute of Nervous System Diseases, Xuzhou Medical University, 84 West Huai-hai Road, Xuzhou, 221002, Jiangsu, People's Republic of China. .,Brain Hospital, Affiliated Hospital of Xuzhou Medical University, 99 West Huai-hai Road, Xuzhou, 221002, Jiangsu, People's Republic of China.
| | - Xiuping Zhou
- Institute of Nervous System Diseases, Xuzhou Medical University, 84 West Huai-hai Road, Xuzhou, 221002, Jiangsu, People's Republic of China. .,Brain Hospital, Affiliated Hospital of Xuzhou Medical University, 99 West Huai-hai Road, Xuzhou, 221002, Jiangsu, People's Republic of China.
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20
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Azoitei N, Cobbaut M, Becher A, Van Lint J, Seufferlein T. Protein kinase D2: a versatile player in cancer biology. Oncogene 2017; 37:1263-1278. [PMID: 29259300 DOI: 10.1038/s41388-017-0052-8] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2017] [Revised: 09/14/2017] [Accepted: 09/15/2017] [Indexed: 12/23/2022]
Abstract
Protein kinase D2 (PKD2) is a serine/threonine kinase that belongs to the PKD family of calcium-calmodulin kinases, which comprises three isoforms: PKD1, PKD2, and PKD3. PKD2 is activated by many stimuli including growth factors, phorbol esters, and G-protein-coupled receptor agonists. PKD2 participation to uncontrolled growth, survival, neovascularization, metastasis, and invasion has been documented in various tumor types including pancreatic, colorectal, gastric, hepatic, lung, prostate, and breast cancer, as well as glioma multiforme and leukemia. This review discusses the versatile functions of PKD2 from the perspective of cancer hallmarks as described by Hanahan and Weinberg. The PKD2 status, signaling pathways affected in different tumor types and the molecular mechanisms that lead to tumorigenesis and tumor progression are presented. The latest developments of small-molecule inhibitors selective for PKD/PKD2, as well as the need for further chemotherapies that prevent, slow down, or eliminate tumors are also discussed in this review.
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Affiliation(s)
- Ninel Azoitei
- Center for Internal Medicine I, University of Ulm, Ulm, Germany.
| | - Mathias Cobbaut
- Laboratory for Protein Phosphorylation and Proteomics, Department of Cellular and Molecular Medicine, Leuven Cancer Institute, KU Leuven, Leuven, Belgium
| | | | - Johan Van Lint
- Laboratory for Protein Phosphorylation and Proteomics, Department of Cellular and Molecular Medicine, Leuven Cancer Institute, KU Leuven, Leuven, Belgium
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21
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Wang Y, Pan P, Wang Z, Zhang Y, Xie P, Geng D, Jiang Y, Yu R, Zhou X. β-catenin-mediated YAP signaling promotes human glioma growth. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2017; 36:136. [PMID: 28962630 PMCID: PMC5622484 DOI: 10.1186/s13046-017-0606-1] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/13/2017] [Accepted: 09/22/2017] [Indexed: 02/07/2023]
Abstract
Background Hippo/YAP pathway is known to be important for development, growth and organogenesis, and dysregulation of this pathway leads to tumor progression.We and others find that YAP is up-regulated in human gliomas and associated with worse prognosis of patients. However, the role and mechanism of YAP in glioma progression is largely unknown. Methods The expression of YAP in glioma tissues was detected by quantitative polymerase chain reaction (qPCR) and immunoblotting. The effect of YAP on glioma progression was examined using cell growth assays and intracranial glioma model. The effect of YAP on β-catenin protein level, subcellular location and transcription activity was examined by immunoblotting, immunofluorescence and RT-PCR. Results Firstly, knockdown of YAP inhibited glioma cell proliferation in vitro and tumor growth in vivo. In addition, YAP modulated the protein level, subcellular location and transcription activity of β-catenin via regulating the activity of GSK3β. Lastly, β-catenin partially mediated the effect of YAP on glioma cell proliferation. Conclusion Our findings identify that YAP promotes human glioma growth through enhancing Wnt/β-catenin signaling. In addition, this study provides a new crosstalk mechanism between Hippo/YAP and Wnt/β-catenin pathways, which suggests a new strategy for human glioma treatment. Electronic supplementary material The online version of this article (10.1186/s13046-017-0606-1) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Yan Wang
- Insititute of Nervous System Diseases, Xuzhou Medical University, 84 West Huai-hai Road, Xuzhou, Jiangsu, 221002, People's Republic of China.,Brain Hospital, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Peng Pan
- The Graduate School, Xuzhou Medical University, Xuzhou, Jiangsu, China.,Present address: Department of Neurosurgery, Xuzhou Cancer Hospital, Xuzhou, Jiangsu, China
| | - Zhaohao Wang
- The Graduate School, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Yu Zhang
- The Graduate School, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Peng Xie
- The Graduate School, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Decheng Geng
- The Graduate School, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Yang Jiang
- The Graduate School, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Rutong Yu
- Insititute of Nervous System Diseases, Xuzhou Medical University, 84 West Huai-hai Road, Xuzhou, Jiangsu, 221002, People's Republic of China.,Brain Hospital, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China.,Jiangsu Center for the Collaboration and Innovation of Cancer Biotherapy, Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Xiuping Zhou
- Insititute of Nervous System Diseases, Xuzhou Medical University, 84 West Huai-hai Road, Xuzhou, Jiangsu, 221002, People's Republic of China. .,Brain Hospital, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China. .,Jiangsu Center for the Collaboration and Innovation of Cancer Biotherapy, Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu, China.
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22
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Li X, Li M, Tian X, Li Q, Lu Q, Jia Q, Zhang L, Yan J, Li X, Li X. Golgi Phosphoprotein 3 Inhibits the Apoptosis of Human Glioma Cells in Part by Downregulating N-myc Downstream Regulated Gene 1. Med Sci Monit 2016; 22:3535-3543. [PMID: 27698340 PMCID: PMC5053125 DOI: 10.12659/msm.900349] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
Background Golgi phosphoprotein 3 (GOLPH3) has been reported to be involved in the development of several human cancers. Our previous study showed that GOLPH3 expression in glioma tissues was related to the severity of the malignancy of the cancer. However, the mechanism by which GOLPH3 affects cell apoptosis is largely unknown. The present study was designed to explore the possible mechanism of GOLPH3 in cell apoptosis. Material/Methods To analyze the biological role of GOLPH3 in glioma cells, we used GOLPH3 small interference RNA in apoptosis of glioma cells. The apoptosis of glioma cells was detected by flow cytometry. The expression level of GOLPH3 and NDRG1 protein was determined by Western blot analyses and immunohistochemical staining, respectively, to evaluate their association with glioma. Tumor tissues were collected from patients with glioma. Normal cerebral tissues were acquired from cerebral trauma patients undergoing internal decompression surgery. Results We confirm that the decrease of GOLPH3 that promotes the apoptosis of glioma cells may be regulated by the activation of NDRG1 and cleaved capcase 3. There was a inverse association between GOLPH3 and NDRG1 in glioma samples. Conclusions Our findings indicate that GOLPH3 and NDRG1 both play an important role in glioma etiology. Either GOLPH3 or NDRG1 might be a potential candidate for malignant glioma therapy.
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Affiliation(s)
- Xin Li
- Department of Neurosurgery, Qilu Hospital of Shandong University, Jinan, Shandong, China (mainland)
| | - Mengyou Li
- Department of Neurosurgery, Qilu Hospital of Shandong University, Jinan, Shandong, China (mainland)
| | - Xiuli Tian
- Department of Respiratory, Liaocheng People's Hospital, Liaocheng, Shandong, China (mainland)
| | - Qingzhe Li
- , Liaocheng People's Hospital and Clinical School of Taishan Medical University, Liaocheng, Shandong, China (mainland)
| | - Qingyang Lu
- Department of Pathology, Liaocheng People's Hospital, Liaocheng, Shandong, China (mainland)
| | - Qingbin Jia
- Department of Neurosurgery, Liaocheng People's Hospital, Liaocheng, Shandong, China (mainland)
| | - Lianqun Zhang
- Department of Neurosurgery, Liaocheng People's Hospital, Liaocheng, Shandong, China (mainland)
| | - Jinqiang Yan
- Department of Neurosurgery, Liaocheng People's Hospital, , China (mainland)
| | - Xueyuan Li
- Department of Neurosurgery, Liaocheng People's Hospital, Liaocheng, Shandong, China (mainland)
| | - Xingang Li
- Department of Neurosurgery, Qilu Hospital of Shandong University, Jinan, Shandong, China (mainland)
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23
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Durand N, Borges S, Storz P. Functional and therapeutic significance of protein kinase D enzymes in invasive breast cancer. Cell Mol Life Sci 2015; 72:4369-82. [PMID: 26253275 DOI: 10.1007/s00018-015-2011-2] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2015] [Revised: 07/30/2015] [Accepted: 08/03/2015] [Indexed: 12/31/2022]
Abstract
The protein kinase D (PKD) family members, PKD1, PKD2 and PKD3 constitute a family of serine/threonine kinases that are essential regulators of cell migration, proliferation and protein transport. Multiple types of cancers are characterized by aberrant expression of PKD isoforms. In breast cancer PKD isoforms exhibit distinct expression patterns and regulate various oncogenic processes. In highly invasive breast cancer, the leading cause of cancer-associated deaths in females, the loss of PKD1 is thought to promote invasion and metastasis, while PKD2 and upregulated PKD3 have been shown to be positive regulators of proliferation, chemoresistance and metastasis. In this review, we examine the differential expression pattern, mechanisms of regulation and contributions made by each PKD isoform to the development and maintenance of invasive breast cancer. In addition, we discuss the potential therapeutic approaches for targeting PKD in this disease.
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Affiliation(s)
- Nisha Durand
- Department of Cancer Biology, Mayo Clinic, Griffin Room 306, 4500 San Pablo Road, Jacksonville, FL, 32224, USA
| | - Sahra Borges
- Department of Cancer Biology, Mayo Clinic, Griffin Room 306, 4500 San Pablo Road, Jacksonville, FL, 32224, USA
| | - Peter Storz
- Department of Cancer Biology, Mayo Clinic, Griffin Room 306, 4500 San Pablo Road, Jacksonville, FL, 32224, USA.
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24
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Abstract
GOLPH3 is the first example of an oncogene that functions in secretory trafficking at the Golgi. The discovery of GOLPH3's roles in both cancer and Golgi trafficking raises questions about how GOLPH3 and the Golgi contribute to cancer. Our recent investigation of the regulation of GOLPH3 revealed a surprising response by the Golgi upon DNA damage that is mediated by DNA-PK and GOLPH3. These results provide new insight into the DNA damage response with important implications for understanding the cellular response to standard cancer therapeutic agents.
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Affiliation(s)
- Matthew D Buschman
- Department of Medicine, Division of Endocrinology and Metabolism, University of California, San Diego, La Jolla, California
| | - Juliati Rahajeng
- Department of Medicine, Division of Endocrinology and Metabolism, University of California, San Diego, La Jolla, California
| | - Seth J Field
- Department of Medicine, Division of Endocrinology and Metabolism, University of California, San Diego, La Jolla, California.
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