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Wolfe AR, Cui T, Baie S, Corrales-Guerrero S, Webb A, Castro-Aceituno V, Shyu DL, Karasinska JM, Topham JT, Renouf DJ, Schaeffer DF, Halloran M, Packard R, Robb R, Chen W, Denko N, Lisanti M, Thompson TC, Frank P, Williams TM. Nutrient scavenging-fueled growth in pancreatic cancer depends on caveolae-mediated endocytosis under nutrient-deprived conditions. SCIENCE ADVANCES 2024; 10:eadj3551. [PMID: 38427741 PMCID: PMC10906919 DOI: 10.1126/sciadv.adj3551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Accepted: 01/26/2024] [Indexed: 03/03/2024]
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is characterized by its nutrient-scavenging ability, crucial for tumor progression. Here, we investigated the roles of caveolae-mediated endocytosis (CME) in PDAC progression. Analysis of patient data across diverse datasets revealed a strong association of high caveolin-1 (Cav-1) expression with higher histologic grade, the most aggressive PDAC molecular subtypes, and worse clinical outcomes. Cav-1 loss markedly promoted longer overall and tumor-free survival in a genetically engineered mouse model. Cav-1-deficient tumor cell lines exhibited significantly reduced proliferation, particularly under low nutrient conditions. Supplementing cells with albumin rescued the growth of Cav-1-proficient PDAC cells, but not in Cav-1-deficient PDAC cells under low glutamine conditions. In addition, Cav-1 depletion led to significant metabolic defects, including decreased glycolytic and mitochondrial metabolism, and downstream protein translation signaling pathways. These findings highlight the crucial role of Cav-1 and CME in fueling pancreatic tumorigenesis, sustaining tumor growth, and promoting survival through nutrient scavenging.
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Affiliation(s)
- Adam R. Wolfe
- Department of Radiation Oncology, The University of Arkansas for Medical Sciences, The Winthrop P. Rockefeller Cancer Institute, Little Rock, AR, USA
| | - Tiantian Cui
- Department of Radiation Oncology, City of Hope, Duarte, CA, USA
| | - Sooin Baie
- Department of Cancer Biology and Genetics, The Ohio State University Wexner Medical Center, Arthur G. James Comprehensive Cancer Center and Richard J. Solove Research Institute, Columbus, OH, USA
| | | | - Amy Webb
- Department of Biomedical Informatics, The Ohio State University, Columbus, OH, USA
| | | | - Duan-Liang Shyu
- Department of Radiation Oncology, The Ohio State University Wexner Medical Center, Arthur G. James Comprehensive Cancer Center and Richard J. Solove Research Institute, Columbus, OH, USA
| | | | | | - Daniel J. Renouf
- Pancreas Centre BC, Vancouver, BC, Canada
- Department of Medical Oncology, BC Cancer, Vancouver, BC, Canada
| | - David F. Schaeffer
- Pancreas Centre BC, Vancouver, BC, Canada
- Department of Pathology and Laboratory Medicine, Vancouver General Hospital, Vancouver, BC, Canada
| | - Megan Halloran
- Department of Radiation Oncology, The Ohio State University Wexner Medical Center, Arthur G. James Comprehensive Cancer Center and Richard J. Solove Research Institute, Columbus, OH, USA
| | - Rebecca Packard
- Department of Radiation Oncology, The Ohio State University Wexner Medical Center, Arthur G. James Comprehensive Cancer Center and Richard J. Solove Research Institute, Columbus, OH, USA
| | - Ryan Robb
- Department of Pharmacology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Wei Chen
- Department of Pathology, The Ohio State University Wexner Medical Center, Arthur G. James Comprehensive Cancer Center and Richard J. Solove Research Institute, Columbus, OH, USA
| | - Nicholas Denko
- Department of Radiation Oncology, The Ohio State University Wexner Medical Center, Arthur G. James Comprehensive Cancer Center and Richard J. Solove Research Institute, Columbus, OH, USA
| | - Michael Lisanti
- Translational Medicine, University of Salford, Greater Manchester M5 4WT, UK
- Lunella Biotech, Inc., 145 Richmond Road, Ottawa, ON K1Z 1A1, Canada
| | - Timothy C. Thompson
- Department of Genitourinary Medical Oncology, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX, USA
| | - Philippe Frank
- SGS France, Health & Nutrition, Saint-Benoît, France
- N2C, Nutrition Growth and Cancer, Faculté de Médecine, Université de Tours, Inserm, UMR, 1069 Tours, France
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2
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Li Z, Liu G, Yang X, Shu M, Jin W, Tong Y, Liu X, Wang Y, Yuan J, Yang Y. An atlas of cell-type-specific interactome networks across 44 human tumor types. Genome Med 2024; 16:30. [PMID: 38347596 PMCID: PMC10860273 DOI: 10.1186/s13073-024-01303-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Accepted: 02/06/2024] [Indexed: 02/15/2024] Open
Abstract
BACKGROUND Biological processes are controlled by groups of genes acting in concert. Investigating gene-gene interactions within different cell types can help researchers understand the regulatory mechanisms behind human complex diseases, such as tumors. METHODS We collected extensive single-cell RNA-seq data from tumors, involving 563 patients with 44 different tumor types. Through our analysis, we identified various cell types in tumors and created an atlas of different immune cell subsets across different tumor types. Using the SCINET method, we reconstructed interactome networks specific to different cell types. Diverse functional data was then integrated to gain biological insights into the networks, including somatic mutation patterns and gene functional annotation. Additionally, genes with prognostic relevance within the networks were also identified. We also examined cell-cell communications to investigate how gene interactions modulate cell-cell interactions. RESULTS We developed a data portal called CellNetdb for researchers to study cell-type-specific interactome networks. Our findings indicate that these networks can be used to identify genes with topological specificity in different cell types. We also found that prognostic genes can deconvolved into cell types through analyzing network connectivity. Additionally, we identified commonalities and differences in cell-type-specific networks across different tumor types. Our results suggest that these networks can be used to prioritize risk genes. CONCLUSIONS This study presented CellNetdb, a comprehensive repository featuring an atlas of cell-type-specific interactome networks across 44 human tumor types. The findings underscore the utility of these networks in delineating the intricacies of tumor microenvironments and advancing the understanding of molecular mechanisms underpinning human tumors.
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Affiliation(s)
- Zekun Li
- Department of Bioinformatics, School of Basic Medical Sciences, The Province and Ministry Co-Sponsored Collaborative Innovation Center for Medical Epigenetics, Center for Reproductive Medicine, The Second Hospital of Tianjin Medical University, Tianjin Key Laboratory of Inflammatory Biology, Tianjin Medical University, Tianjin, 300070, China
| | - Gerui Liu
- Department of Bioinformatics, School of Basic Medical Sciences, The Province and Ministry Co-Sponsored Collaborative Innovation Center for Medical Epigenetics, Center for Reproductive Medicine, The Second Hospital of Tianjin Medical University, Tianjin Key Laboratory of Inflammatory Biology, Tianjin Medical University, Tianjin, 300070, China
| | - Xiaoxiao Yang
- Department of Bioinformatics, School of Basic Medical Sciences, The Province and Ministry Co-Sponsored Collaborative Innovation Center for Medical Epigenetics, Center for Reproductive Medicine, The Second Hospital of Tianjin Medical University, Tianjin Key Laboratory of Inflammatory Biology, Tianjin Medical University, Tianjin, 300070, China
| | - Meng Shu
- Department of Bioinformatics, School of Basic Medical Sciences, The Province and Ministry Co-Sponsored Collaborative Innovation Center for Medical Epigenetics, Center for Reproductive Medicine, The Second Hospital of Tianjin Medical University, Tianjin Key Laboratory of Inflammatory Biology, Tianjin Medical University, Tianjin, 300070, China
| | - Wen Jin
- Department of Bioinformatics, School of Basic Medical Sciences, The Province and Ministry Co-Sponsored Collaborative Innovation Center for Medical Epigenetics, Center for Reproductive Medicine, The Second Hospital of Tianjin Medical University, Tianjin Key Laboratory of Inflammatory Biology, Tianjin Medical University, Tianjin, 300070, China
| | - Yang Tong
- Department of Bioinformatics, School of Basic Medical Sciences, The Province and Ministry Co-Sponsored Collaborative Innovation Center for Medical Epigenetics, Center for Reproductive Medicine, The Second Hospital of Tianjin Medical University, Tianjin Key Laboratory of Inflammatory Biology, Tianjin Medical University, Tianjin, 300070, China
| | - Xiaochuan Liu
- Department of Bioinformatics, School of Basic Medical Sciences, The Province and Ministry Co-Sponsored Collaborative Innovation Center for Medical Epigenetics, Center for Reproductive Medicine, The Second Hospital of Tianjin Medical University, Tianjin Key Laboratory of Inflammatory Biology, Tianjin Medical University, Tianjin, 300070, China
| | - Yuting Wang
- Department of Bioinformatics, School of Basic Medical Sciences, The Province and Ministry Co-Sponsored Collaborative Innovation Center for Medical Epigenetics, Center for Reproductive Medicine, The Second Hospital of Tianjin Medical University, Tianjin Key Laboratory of Inflammatory Biology, Tianjin Medical University, Tianjin, 300070, China
| | - Jiapei Yuan
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, 300020, China.
- Tianjin Institutes of Health Science, Tianjin, 301600, China.
| | - Yang Yang
- Department of Bioinformatics, School of Basic Medical Sciences, The Province and Ministry Co-Sponsored Collaborative Innovation Center for Medical Epigenetics, Center for Reproductive Medicine, The Second Hospital of Tianjin Medical University, Tianjin Key Laboratory of Inflammatory Biology, Tianjin Medical University, Tianjin, 300070, China.
- Department of Pharmacology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, 300070, China.
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3
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Liu Y, Li H, Zeng T, Wang Y, Zhang H, Wan Y, Shi Z, Cao R, Tang H. Integrated bulk and single-cell transcriptomes reveal pyroptotic signature in prognosis and therapeutic options of hepatocellular carcinoma by combining deep learning. Brief Bioinform 2023; 25:bbad487. [PMID: 38197309 PMCID: PMC10777172 DOI: 10.1093/bib/bbad487] [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: 10/07/2023] [Revised: 11/22/2023] [Accepted: 11/30/2023] [Indexed: 01/11/2024] Open
Abstract
Although some pyroptosis-related (PR) prognostic models for cancers have been reported, pyroptosis-based features have not been fully discovered at the single-cell level in hepatocellular carcinoma (HCC). In this study, by deeply integrating single-cell and bulk transcriptome data, we systematically investigated significance of the shared pyroptotic signature at both single-cell and bulk levels in HCC prognosis. Based on the pyroptotic signature, a robust PR risk system was constructed to quantify the prognostic risk of individual patient. To further verify capacity of the pyroptotic signature on predicting patients' prognosis, an attention mechanism-based deep neural network classification model was constructed. The mechanisms of prognostic difference in the patients with distinct PR risk were dissected on tumor stemness, cancer pathways, transcriptional regulation, immune infiltration and cell communications. A nomogram model combining PR risk with clinicopathologic data was constructed to evaluate the prognosis of individual patients in clinic. The PR risk could also evaluate therapeutic response to neoadjuvant therapies in HCC patients. In conclusion, the constructed PR risk system enables a comprehensive assessment of tumor microenvironment characteristics, accurate prognosis prediction and rational therapeutic options in HCC.
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Affiliation(s)
- Yang Liu
- School of Basic Medical Sciences, Southwest Medical University, Luzhou 646000, China
| | - Hanlin Li
- School of Basic Medical Sciences, Southwest Medical University, Luzhou 646000, China
| | - Tianyu Zeng
- School of Basic Medical Sciences, Southwest Medical University, Luzhou 646000, China
| | - Yang Wang
- School of Basic Medical Sciences, Southwest Medical University, Luzhou 646000, China
| | - Hongqi Zhang
- School of Life Science and Technology, Center for Informational Biology, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Ying Wan
- School of Basic Medical Sciences, Southwest Medical University, Luzhou 646000, China
| | - Zheng Shi
- Clinical Genetics Laboratory, Clinical Medical College & Affiliated Hospital, Chengdu University, Chengdu 610106, China
| | - Renzhi Cao
- Department of Computer Science, Pacific Lutheran University, Tacoma, Washington 98447, USA
| | - Hua Tang
- School of Basic Medical Sciences, Southwest Medical University, Luzhou 646000, China
- Basic Medicine Research Innovation Center for Cardiometabolic Diseases,Ministry of Education, Luzhou 646000, China
- Medical Engineering & Medical Informatics Integration and Transformational Medicine Key Laboratory of Luzhou City, Luzhou 646000, China
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4
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D’Alessio A. Unraveling the Cave: A Seventy-Year Journey into the Caveolar Network, Cellular Signaling, and Human Disease. Cells 2023; 12:2680. [PMID: 38067108 PMCID: PMC10705299 DOI: 10.3390/cells12232680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 11/16/2023] [Accepted: 11/20/2023] [Indexed: 12/18/2023] Open
Abstract
In the mid-1950s, a groundbreaking discovery revealed the fascinating presence of caveolae, referred to as flask-shaped invaginations of the plasma membrane, sparking renewed excitement in the field of cell biology. Caveolae are small, flask-shaped invaginations in the cell membrane that play crucial roles in diverse cellular processes, including endocytosis, lipid homeostasis, and signal transduction. The structural stability and functionality of these specialized membrane microdomains are attributed to the coordinated activity of scaffolding proteins, including caveolins and cavins. While caveolae and caveolins have been long appreciated for their integral roles in cellular physiology, the accumulating scientific evidence throughout the years reaffirms their association with a broad spectrum of human disorders. This review article aims to offer a thorough account of the historical advancements in caveolae research, spanning from their initial discovery to the recognition of caveolin family proteins and their intricate contributions to cellular functions. Furthermore, it will examine the consequences of a dysfunctional caveolar network in the development of human diseases.
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Affiliation(s)
- Alessio D’Alessio
- Sezione di Istologia ed Embriologia, Dipartimento di Scienze della Vita e Sanità Pubblica, Università Cattolica del Sacro Cuore, 00168 Roma, Italy;
- Fondazione Policlinico Universitario “Agostino Gemelli”, IRCCS, 00168 Rome, Italy
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5
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Dong S, Wang Z, Xiong W. POFUT1 promotes gastric cancer progression through Notch/Wnt dual signaling pathways dependent on the parafibromin-NICD1-β-catenin complex. J Chin Med Assoc 2023; 86:806-817. [PMID: 37501238 DOI: 10.1097/jcma.0000000000000957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 07/29/2023] Open
Abstract
BACKGROUND Aberrant glycosylation performed by glycosyltransferases is a leading cause of gastric cancer (GC). Protein O-fucosyltransferase 1 (POFUT1) expression is increased in GC specimens and cells. In this study, the biological effects and mechanisms of POFUT1 underlying the development of GC were investigated. METHODS POFUT1 downregulated and upregulated GC cells were established. The effects of POFUT1 on cell proliferation, metastasis and apoptosis were examined using cell counting kit-8 (CCK8) assay, transwell assay, and flow cytometry. Subcutaneous xenograft tumor models were established followed by immunohistochemistry staining of resected tumors. Facilitating modulators and transcription factors were detected by western blot, immunofluorescence, luciferase reporter assay, and co-immunoprecipitation. RESULTS POFUT1 played a pro-oncogenic role both in vivo and in vitro, which promoted proliferation and metastasis, as well as inhibited apoptosis in GC cells. POFUT1 promoted Cyclin D3 expression and inhibited the expression of apoptotic proteins, such as Bcl-2-associated X protein (Bax) and cleaved caspase 3, facilitating tumor growth. Moreover, POFUT1 accelerated matrix metalloproteases expression and attenuated E-cadherin expression, contributing to GC metastasis. In addition, POFUT1 expression promoted the expression and nuclear translocation of Notch1 intracellular domain (NICD1) and β-catenin and inhibited β-catenin phosphorylation degradation, accompanied by the activation of recombination signal binding protein-Jκ (RBP-J) and T-cell factor (TCF) transcription factors, respectively. It is notable that parafibromin integrated NICD1 and β-catenin, enabling the concerted activation of Wnt and Notch signaling targeted proteins. CONCLUSION These observations indicated that POFUT1 promoted GC development through activation of Notch and Wnt signaling pathways, which depended on the parafibromin-NICD1-β-catenin complex. This work provides new evidence for the further diagnosis and treatment of GC.
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Affiliation(s)
- Shuang Dong
- Center for Single-Cell Omics, School of Public Health, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Zhirong Wang
- Department of Gastroenterology, Shanghai Tongji Hospital Affiliated to Tongji University, Shanghai, China
| | - Wujun Xiong
- Department of Gastroenterology, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, China
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6
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Zhang N, Long L, Li G, Wu X, Peng S, Jiang Y, Xiang A, Mao X, Huang H, Yang Z. Preliminary study on the mechanism of POFUT1 in colorectal cancer. Med Oncol 2023; 40:235. [PMID: 37432515 DOI: 10.1007/s12032-023-02102-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Accepted: 06/19/2023] [Indexed: 07/12/2023]
Abstract
To analyse the effect of POFUT1 (Protein O-Fucosyltransferase 1) on the proliferation, migration and apoptosis of colorectal cancer (CRC) cells and to explore its potential mechanism. The effects of POFUT1 silencing in vitro on the proliferation, migration, and apoptosis of CRC cells were investigated using the SW480 and RKO cell lines. The effect of POFUT1 expression on cell phenotype was detected by cell proliferation assay (CCK8), colony formation assay, flow cytometry, wound healing assay, transwell assay, cell apoptosis assay, etc. In vitro, silencing of POFUT1 resulted in decreased proliferation, cell cycle arrest, reduced migration and increased apoptosis of CRC cells. In CRC cells, POFUT1 plays a tumour-promoting role by promoting cell proliferation and migration and inhibiting apoptosis.
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Affiliation(s)
- Nianfeng Zhang
- Department of Histology & Embryology, Xiangya School of Medicine, Central South University, ChangSha, China
- Yueyang Key Laboratory of Chronic Noncommunicable Diseases, Yueyang Vocational and Technical College, Yueyang, China
| | - Linna Long
- Department of Histology & Embryology, Xiangya School of Medicine, Central South University, ChangSha, China
| | - Guang Li
- Yueyang Central Hospital, Yueyang, China
| | - Xingang Wu
- Yueyang Key Laboratory of Chronic Noncommunicable Diseases, Yueyang Vocational and Technical College, Yueyang, China
| | - Shubin Peng
- Yueyang Key Laboratory of Chronic Noncommunicable Diseases, Yueyang Vocational and Technical College, Yueyang, China
| | - Yu Jiang
- Yueyang Key Laboratory of Chronic Noncommunicable Diseases, Yueyang Vocational and Technical College, Yueyang, China
| | - Anping Xiang
- Yueyang Key Laboratory of Chronic Noncommunicable Diseases, Yueyang Vocational and Technical College, Yueyang, China
| | - Xianhua Mao
- Yueyang Key Laboratory of Chronic Noncommunicable Diseases, Yueyang Vocational and Technical College, Yueyang, China
| | - He Huang
- Department of Histology & Embryology, Xiangya School of Medicine, Central South University, ChangSha, China.
| | - Zhiying Yang
- Department of Histology & Embryology, Xiangya School of Medicine, Central South University, ChangSha, China.
- Changsha Health Vocational College, Changsha, China.
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7
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Shin VY, Liu MX, Siu JMT, Kwong A, Chu KM. Inhibition of EP2 receptor suppresses tumor growth and chemoresistance of gastric cancer. Am J Cancer Res 2022; 12:4680-4692. [PMID: 36381319 PMCID: PMC9641405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Accepted: 07/20/2022] [Indexed: 06/16/2023] Open
Abstract
Gastric cancer is one of the leading causes of cancer death in the world. Early diagnosis and effective chemotherapy are vital to reduce the overall mortality. Prostaglandin E2 (PGE2) has been implicated as an important factor in gastric cancer carcinogenesis. ECF based regimen (epirubicin, cisplatin, 5-fluorouracil) is the first-line chemotherapy for advanced gastric cancer. However, patients develop resistance after chemotherapy. The aim of this study is sought to investigate the role of EP2 receptor, a PGE2 receptor, and the antagonism of EP2 receptor in response to ECF treatment. Expression of EP2 receptor was evaluated in gastric cancer tissue samples and cell lines. Cell proliferation and cell apoptosis assays were performed in vitro and in vivo, upon knockdown of EP2 receptor, antagonist of EP2 receptor and/or ECF treatment. Western Blot was applied for evaluation of proteins relating to cell cycle, apoptosis and drug transporter. Next generation sequencing and ingenuity pathway analysis were applied for screening for downstream targets of EP2 receptor. Expressions of the targets of EP2 receptor were further evaluated in gastric cancer cells and tissues. In this study, we found that expression of EP2 receptor was significantly upregulated in gastric cancer. Inhibition of EP2 receptor reduced gastric cancer cell proliferation, induced cell cycle arrest proteins, and enhanced cell apoptosis. Moreover, knockdown of EP2 receptor by siRNA or antagonist sensitized gastric cancer cells to ECF. Silence of EP2 receptor also significantly abrogated gastric cancer growth in a mice model. Analysis revealed that CAV1 was a downstream target of EP2 receptor in gastric cancer. Our findings illustrated that blocking EP2 receptor reduced tumor growth and induced apoptosis in gastric cancer. This novel study unraveled CAV1 was a downstream target of EP2 receptor. Antagonizing EP2 receptor could be a potential therapeutic target in gastric cancer, in particular those with high EP2 receptor expression.
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Yamaguchi M, Murata T, Ramos JW. Overexpression of regucalcin blocks the migration, invasion, and bone metastatic activity of human prostate cancer cells: Crosstalk between cancer cells and bone cells. Prostate 2022; 82:1025-1039. [PMID: 35365850 DOI: 10.1002/pros.24348] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 12/11/2021] [Accepted: 01/03/2022] [Indexed: 11/10/2022]
Abstract
BACKGROUND Prostate cancer is a bone metastatic cancer and is the second leading cause of cancer-related death in men. Prolonged progression-free survival of prostate cancer patients is associated with high regucalcin expression in the tumor tissues. This study investigates the underlying mechanism by which regucalcin prevents bone metastatic activity of prostate cancer cells. METHODS Human prostate cancer PC-3 or DU-145 wild-type cells or regucalcin-overexpressing PC-3 or DU-145 cells (transfectants) were cultured in Dulbecco's modified Eagle's medium containing 10% fetal bovine serum. RESULTS Overexpressed regucalcin suppressed the migration and invasion of bone metastatic human prostate cancer cells in vitro, and it reduced the levels of key proteins in metastasis including Ras, Akt, MAPK, RSK-2, mTOR, caveolin-1, and integrin β1. Invasion of prostate cancer cells was promoted by coculturing with preosteoblastic MC3T3-E1 or preosteoclastic RAW264.7 cells. Coculturing with cancer cells and bone cells repressed the growth of preosteoblastic cells and enhanced osteoclastogenesis of preosteoclastic cells, and these alterations were caused by a conditioned medium from cancer cell culture. Disordered differentiation of bone cells was prevented by regucalcin overexpression. Production of tumor necrosis factor-α (TNF-α) in cancer cells was blocked by overexpressed regucalcin. Of note, the effects of conditioned medium on bone cells were prevented by NF-κB inhibitor. TNF-α may be important as a mediator in the crosstalk between cancer cells and bone cells. CONCLUSION Overexpression of regucalcin suppressed the migration, invasion, and bone metastatic activity of human prostate cancer cells. This study may provide a new strategy for therapy with the regucalcin gene transfer.
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Affiliation(s)
- Masayoshi Yamaguchi
- Cancer Biology Program, University of Hawaii Cancer Center, University of Hawaii at Manoa, Hawaii, USA
| | - Tomiyasu Murata
- Laboratory of Molecular Biology, Faculty of Pharmacy, Meijo University, Nagoya, Japan
| | - Joe W Ramos
- Cancer Biology Program, University of Hawaii Cancer Center, University of Hawaii at Manoa, Hawaii, USA
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Yamaguchi M, Yosiike K, Watanabe H, Watanabe M. The marine factor 3,5-dihydroxy-4-methoxybenzyl alcohol suppresses growth, migration and invasion and stimulates death of metastatic human prostate cancer cells: targeting diverse signaling processes. Anticancer Drugs 2022; 33:424-436. [PMID: 35324521 DOI: 10.1097/cad.0000000000001306] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Prostate cancer is metastatic cancer and is the second leading cause of cancer-related death in men. It is needed to develop more effective treatment for metastatic prostate cancer. The present study investigates whether the novel factor 3,5-dihydroxy-4-methoxybenzyl alcohol (DHMBA), which was isolated from marine oyster, suppresses the activity of metastatic human prostate cancer PC-3 or DU-145 cells. Culture of DHMBA (1 or 10 µM) suppressed colony formation and growth of PC-3 or DU-145 cells in vitro. Suppressive effects of DHMBA on cell proliferation were not occurred by culturing with intracellular signaling inhibitors. Mechanistically, DHMBA (10 µM) reduced the levels of key proteins linked to promotion of cell growth, including Ras, PI3K, Akt, MAPK, and mTOR in PC-3 cells. Interestingly, DHMBA increased the levels of cancer suppressor p53, p21, Rb, and regucalcin. Moreover, culture of DHMBA simulated the death of PC-3 and DU-145 cells. This effect was implicated to caspase-3 activation in cells. Interestingly, the effects of DHMBA on cell proliferation and death were blocked by culturing with an inhibitor of aryl hydrocarbon receptor linked to transcriptional regulation. Furthermore, culture of DHMBA inhibited production of reactive oxygen species in PC-3 or DU-145 cells. Of note, DHMBA blocked migration and invasion by diminishing their related protein levels, including NF-κB 65, caveolin-1 and integrin β1. The novel marine factor DHMBA was demonstrated to suppress metastatic prostate cancer cells via targeting diverse signaling pathways. This study may provide a new strategy for prostate cancer therapy with DHMBA.
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Affiliation(s)
- Masayoshi Yamaguchi
- Cancer Biology Program, University of Hawaii Cancer Center, University of Hawaii at Manoa, Hawaii, USA
| | - Kenji Yosiike
- Department of Research and development, Watanabe Oyster Laboratory Co. Ltd., Hachioji, Tokyo, Japan
| | - Hideaki Watanabe
- Department of Research and development, Watanabe Oyster Laboratory Co. Ltd., Hachioji, Tokyo, Japan
| | - Mitsugu Watanabe
- Department of Research and development, Watanabe Oyster Laboratory Co. Ltd., Hachioji, Tokyo, Japan
- Graduate School of Science and Engineering, Soka University, Hachioji, Tokyo, Japan
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10
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Glycosyltransferases in Cancer: Prognostic Biomarkers of Survival in Patient Cohorts and Impact on Malignancy in Experimental Models. Cancers (Basel) 2022; 14:cancers14092128. [PMID: 35565254 PMCID: PMC9100214 DOI: 10.3390/cancers14092128] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 04/19/2022] [Accepted: 04/21/2022] [Indexed: 02/04/2023] Open
Abstract
Background: Glycosylation changes are a main feature of cancer. Some carbohydrate epitopes and expression levels of glycosyltransferases have been used or proposed as prognostic markers, while many experimental works have investigated the role of glycosyltransferases in malignancy. Using the transcriptomic data of the 21 TCGA cohorts, we correlated the expression level of 114 glycosyltransferases with the overall survival of patients. Methods: Using the Oncolnc website, we determined the Kaplan−Meier survival curves for the patients falling in the 15% upper or lower percentile of mRNA expression of each glycosyltransferase. Results: Seventeen glycosyltransferases involved in initial steps of N- or O-glycosylation and of glycolipid biosynthesis, in chain extension and sialylation were unequivocally associated with bad prognosis in a majority of cohorts. Four glycosyltransferases were associated with good prognosis. Other glycosyltransferases displayed an extremely high predictive value in only one or a few cohorts. The top were GALNT3, ALG6 and B3GNT7, which displayed a p < 1 × 10−9 in the low-grade glioma (LGG) cohort. Comparison with published experimental data points to ALG3, GALNT2, B4GALNT1, POFUT1, B4GALT5, B3GNT5 and ST3GAL2 as the most consistently malignancy-associated enzymes. Conclusions: We identified several cancer-associated glycosyltransferases as potential prognostic markers and therapeutic targets.
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N-methyl-D-aspartic acid increases tight junction protein destruction in brain endothelial cell via caveolin-1-associated ERK1/2 signaling. Toxicology 2022; 470:153139. [DOI: 10.1016/j.tox.2022.153139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 02/21/2022] [Accepted: 02/28/2022] [Indexed: 11/15/2022]
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12
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N6-methyladenosine demethylase FTO promotes growth and metastasis of gastric cancer via m 6A modification of caveolin-1 and metabolic regulation of mitochondrial dynamics. Cell Death Dis 2022; 13:72. [PMID: 35064107 PMCID: PMC8782929 DOI: 10.1038/s41419-022-04503-7] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2021] [Revised: 12/05/2021] [Accepted: 12/30/2021] [Indexed: 12/19/2022]
Abstract
Gastric cancer (GC) is the fifth most common tumor and the third most deadly cancer worldwide. N6-methyladenosine (m6A) modification has been reported to play a regulatory role in human cancers. However, the exact role of m6A in GC remains largely unknown, and the dysregulation of m6A on mitochondrial metabolism has never been studied. In the present study, we demonstrated that FTO, a key demethylase for RNA m6A modification, was up-regulated in GC tissues, especially in tissues with liver metastasis. Functionally, FTO acted as a promoter for the proliferation and metastasis in GC. Moreover, FTO enhanced the degradation of caveolin-1 mRNA via its demethylation, which regulated the mitochondrial fission/fusion and metabolism. Collectively, our current findings provided some valuable insights into FTO-mediated m6A demethylation modification and could be used as a new strategy for more careful surveillance and aggressive therapeutic intervention.
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13
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Zhao D, Yang Z, Chen C, Zhang Z, Yu Y, Li Z. CXCR4 promotes gefitinib resistance of Huh7 cells by activating the c-Met signaling pathway. FEBS Open Bio 2021; 11:3115-3125. [PMID: 34555268 PMCID: PMC8564344 DOI: 10.1002/2211-5463.13305] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Revised: 07/27/2021] [Accepted: 09/22/2021] [Indexed: 12/21/2022] Open
Abstract
C‐X‐C chemokine receptor type 4 (CXCR4) expression is associated with poor prognosis of hepatocellular carcinoma (HCC). The aim of this study was to explore the biological role of CXCR4 in gefitinib resistance of HCC. Compared with a normal, non‐gefitinib‐resistant, human HCC cell line (Huh7), CXCR4 mRNA and protein were highly expressed in gefitinib‐resistant Huh7 cells (Huh7‐R). Cell proliferation was decreased, and apoptosis was enhanced in Huh7 cells in the presence of gefitinib. These influences conferred by gefitinib treatment on proliferation and apoptosis of Huh7 cells were abolished by CXCR4 overexpression. CXCR4 knockdown reduced the proliferation ability of HuH‐7R cells after gefitinib treatment. Importantly, CXCR4 overexpression had no influence on caveolin 1 (Cav‐1) expression; similarly, Cav‐1 silencing did not cause a substantive change in CXCR4 expression. However, CXCR4 activated Cav‐1, c‐Met, and Raf‐1 in Huh7 cells, whereas Cav‐1 silencing repressed the expression of Raf‐1 and phosphorylated c‐Met in Huh7 cells. CXCR4 overexpression promoted proliferation and repressed apoptosis in gefitinib‐treated Huh7 cells, which was partly rescued by PHA‐665752 (a c‐Met inhibitor) treatment or c‐Met deficiency. Finally, we constructed a tumor xenograft model to determine the influence of CXCR4 overexpression on tumor growth of HCC. CXCR4 overexpression accelerated tumor growth of HCC, which was abrogated by c‐Met deficiency. These findings demonstrate that CXCR4 overexpression activates c‐Met via the Cav‐1 signaling pathway, thereby promoting gefitinib resistance of Huh7 cells. Thus, this study highlights novel insights into the mechanism of gefitinib resistance of HCC and CXCR4 may become a potential target for HCC treatment.
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Affiliation(s)
- Dali Zhao
- Department of General Surgery, The First Affiliated Hospital of Harbin Medical University, China
| | - Zhiqiang Yang
- Department of General Surgery, The First Affiliated Hospital of Harbin Medical University, China
| | - Chen Chen
- Department of General Surgery, The First Affiliated Hospital of Harbin Medical University, China
| | - Zhipeng Zhang
- Department of General Surgery, The First Affiliated Hospital of Harbin Medical University, China
| | - Yangsheng Yu
- Department of General Surgery, The First Affiliated Hospital of Harbin Medical University, China
| | - Zhituo Li
- Department of General Surgery, The First Affiliated Hospital of Harbin Medical University, China
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14
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Abstract
O-Linked glycosylation such as O-fucose, O-glucose, and O-N-acetylglucosamine are considered to be unusual. As suggested by the high levels of evolutional conservation, these O-glycans are fundamentally important for life. In the last two decades, our understanding of the importance of these glycans has greatly advanced. In particular, identification of the glycosyltransferases responsible for the biosynthesis of these glycans has accelerated basic research on the functional significance and molecular mechanisms by which these O-glycans regulate protein functions as well as clinical research on human diseases due to changes in these types of O-glycosylation. Notably, Notch receptor signaling is modified with and regulated by these types of O-glycans. Here, we summarize the current view of the structures and the significance of these O-glycans mainly in the context of Notch signaling regulation and human diseases.
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15
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Chen X, Wang L, Wu Y, Zhang H, Dong W, Yu X, Huang C, Li Y, Wang S, Zhang J. Caveolin-1 knockout mice have altered serum N-glycan profile and sialyltransferase tissue expression. J Physiol Biochem 2021; 78:73-83. [PMID: 34462883 DOI: 10.1007/s13105-021-00840-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2020] [Accepted: 08/19/2021] [Indexed: 10/20/2022]
Abstract
Caveolin-1 (Cav-1) is a constitutive protein within caveolar membranes. Previous studies from our group and others indicated that Cav-1 could mediate N-glycosylation, α2,6-sialylation, and fucosylation in mouse hepatocarcinoma cells in vitro. However, little is known about the effect of Cav-1 expression on glycosylation modifications in vivo. In this study, the N-glycan profiles in serum from Cav-1-/- mice were investigated by lectin microarray and mass spectrometric analysis approaches. The results showed that levels of multi-antennary branched, α2,6-sialylated, and galactosylated N-glycans increased, while high-mannose typed and fucosylated N-glycans decreased in the serum of Cav-1-/- mice, compared with that of wild-type mice. Furthermore, the real-time quantitative PCR analysis indicated that α2,6-sialyltransferase gene expression decreased significantly in Cav-1-/- mouse organ tissues, but α2,3- and α2,8-sialyltransferase did not. Of them, both mRNA and protein expression levels of the β-galactoside α2,6-sialyltransferase 1 (ST6Gal-I) had dramatically reduced in Cav-1-/- mice organ tissues, which was consistent with the α2,6-sialyl Gal/GalNAc level reduced significantly in tissues instead of serum from Cav-1-/- mice. These results provide for the first time the N-glycans profile of Cav-1-/- mice serum, which will facilitate understanding the function of Cav-1 from the perspective of glycosylation.
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Affiliation(s)
- Xixi Chen
- School of Life and Pharmaceutical Sciences, Dalian University of Technology, Panjin, 124221, Liaoning, China
| | - Liping Wang
- School of Life and Pharmaceutical Sciences, Dalian University of Technology, Panjin, 124221, Liaoning, China
| | - Yinshuang Wu
- Department of Biochemistry and Molecular Biology, Institute of Glycobiology, Dalian Medical University, Dalian, 116044, Liaoning, China
| | - Hongshuo Zhang
- Department of Biochemistry and Molecular Biology, Institute of Glycobiology, Dalian Medical University, Dalian, 116044, Liaoning, China
| | - Weijie Dong
- Department of Biochemistry and Molecular Biology, Institute of Glycobiology, Dalian Medical University, Dalian, 116044, Liaoning, China
| | - Xiao Yu
- Department of Pathology, Dalian Medical University, Dalian, 116044, Liaoning, China
| | - Chuncui Huang
- Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101, China
| | - Yan Li
- Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101, China.,University of The Chinese Academy of Sciences, Beijing, 100049, China
| | - Shujing Wang
- Department of Biochemistry and Molecular Biology, Institute of Glycobiology, Dalian Medical University, Dalian, 116044, Liaoning, China
| | - Jianing Zhang
- School of Life and Pharmaceutical Sciences, Dalian University of Technology, Panjin, 124221, Liaoning, China.
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16
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Pang L, Yang S, Dai W, Wu S, Kong J. Role of caveolin-1 in human organ function and disease: friend or foe? Carcinogenesis 2021; 43:2-11. [PMID: 34436568 DOI: 10.1093/carcin/bgab080] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 07/14/2021] [Accepted: 08/25/2021] [Indexed: 12/13/2022] Open
Abstract
Caveolin-1 (Cav-1) is a structural protein component of caveolae, which are invaginations of the plasma membrane involved in various cellular processes, including endocytosis, extracellular matrix organization, cholesterol distribution, cell migration, and signaling. Mounting evidence over the last 10-15 years has demonstrated a central role of Cav-1 in many diseases, such as cancer, diabetes, and fibrosis. Cav-1 plays positive and negative roles in various diseases through its different regulation pathways. Here, we review the current knowledge on Cav-1 in different diseases and discuss the role of this protein in human organs and diseases.
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Affiliation(s)
- Liwei Pang
- Department of General Surgery, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
| | - Shaojie Yang
- Department of General Surgery, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
| | - Wanlin Dai
- Innovation Institute of China Medical University, Shenyang, Liaoning, China
| | - Shuodong Wu
- Department of General Surgery, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
| | - Jing Kong
- Department of General Surgery, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
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17
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Hu L, Xu X, Li Q, Chen X, Yuan X, Qiu S, Yao C, Zhang D, Wang F. Caveolin-1 increases glycolysis in pancreatic cancer cells and triggers cachectic states. FASEB J 2021; 35:e21826. [PMID: 34320244 DOI: 10.1096/fj.202100121rrr] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Revised: 07/13/2021] [Accepted: 07/15/2021] [Indexed: 12/24/2022]
Abstract
In pancreatic cancer, autocrine insulin-like growth factor-1 (IGF-1) and paracrine insulin stimulate both IGF-1 receptor (IGF1R) and insulin receptor (IR) to increase tumor growth and glycolysis. In pancreatic cancer patients, cancer-induced glycolysis increases hepatic gluconeogenesis, skeletal muscle proteolysis, and fat lipolysis and, thereby, causes cancer cachexia. As a protein coexisting with IGF1R and IR, caveolin-1 (cav-1) may be involved in pancreatic cancer-induced cachexia. We undertook the present study to test this hypothesis. Out of wild-type MiaPaCa2 and AsPC1 human pancreatic cancer cell lines, we created their stable sub-lines whose cav-1 expression was diminished with RNA interference or increased with transgene expression. When these cells were studied in vitro, we found that cav-1 regulated IGF1R/IR expression and activation and also regulated cellular glycolysis. We transplanted the different types of MiaPaCa2 cells in growing athymic mice for 8 weeks, using intact athymic mice as tumor-free controls. We found that cav-1 levels in tumor grafts were correlated with expression levels of the enzymes that regulated hepatic gluconeogenesis, skeletal muscle proteolysis, and fat lipolysis in the respective tissues. When the tumors had original or increased cav-1, their carriers' body weight gain was less than the tumor-free reference. When cav-1 was diminished in tumors, the tumor carriers' body weight gain was not changed significantly, compared to the tumor-free reference. In conclusion, cav-1 in pancreatic cancer cells stimulated IGF1R/IR and glycolysis in the cancer cells and triggered cachectic states in the tumor carrier.
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Affiliation(s)
- Lijuan Hu
- The Laboratory of Acute Abdomen Disease Associated Organ Injury and Repair, Nankai Hospital Affiliated to Nankai University, Tianjin, China
| | - Xiaoqing Xu
- The Graduate School, Tianjin Medical University, Tianjin, China
| | - Qiuju Li
- The Graduate School, Tianjin Medical University, Tianjin, China
| | - Xijuan Chen
- The Graduate School, Tianjin Medical University, Tianjin, China
| | - Xiangfei Yuan
- The Laboratory of Acute Abdomen Disease Associated Organ Injury and Repair, Nankai Hospital Affiliated to Nankai University, Tianjin, China
| | - Shuai Qiu
- The Graduate School, Tianjin Medical University, Tianjin, China
| | - Chuanshan Yao
- The Medical School, Nankai University, Tianjin, China
| | - Dapeng Zhang
- The Laboratory of Acute Abdomen Disease Associated Organ Injury and Repair, Nankai Hospital Affiliated to Nankai University, Tianjin, China
| | - Feng Wang
- The Laboratory of Acute Abdomen Disease Associated Organ Injury and Repair, Nankai Hospital Affiliated to Nankai University, Tianjin, China
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18
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Li Q, Wang J, Ma X, Wang M, Zhou L. POFUT1 acts as a tumor promoter in glioblastoma by enhancing the activation of Notch signaling. J Bioenerg Biomembr 2021; 53:621-632. [PMID: 34251584 DOI: 10.1007/s10863-021-09912-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Accepted: 07/05/2021] [Indexed: 01/13/2023]
Abstract
Dysregulation of protein O-fucosyl transferase 1 (POFUT1) contributes to the occurrence and progression of multiple cancers. However, whether POFUT1 has a relationship with the pathogenesis of glioblastoma (GBM) is unknown. This work was aimed at evaluating the detailed relevance of POFUT1 in GBM. Here, we demonstrated high levels of POFUT1 in GBM tissue and elucidated that GBM patients with high levels of POFUT1 had a shorter survival rate than those with low levels of POFUT1. POFUT1 knockdown in GBM cells markedly downregulated the ability to proliferate and invade, while overexpression of POFUT1 potentiated the proliferative and invasive ability of GBM cells. Further mechanistic studies indicated that silencing POFUT1 prohibited the activation of Notch signaling, leading to a reduction in the expression of HES1 and HEY1. On the contrary, overexpression of POFUT1 enhanced the activation of Notch signaling. Notably, inhibition of Notch signaling markedly reversed POFUT1-overexpression-induced tumor promotion effects in GBM cells. In addition, POFUT1 silencing markedly repressed the potential of GBM cells to form tumors in vivo. In conclusion, the data of this work indicates that POFUT1 serves a tumor promotion role in GBM by enhancing the activation of Notch signaling. This study underlines the potential role of the POFUT1/Notch axis in GBM progression and proposes POFUT1 as a promising anticancer target for GBM.
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Affiliation(s)
- Qi Li
- Department of Neurosurgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, China
| | - Jia Wang
- Department of Neurosurgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, China
| | - Xudong Ma
- Department of Neurosurgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, China
| | - Maode Wang
- Department of Neurosurgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, China
| | - Lei Zhou
- Department of Ultrasonography, Xi'an People's Hospital (Xi'an Fourth Hospital), No. 21 Jiefang Road, Xi'an, 710004, Shaanxi, China.
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19
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Chen X, Wang L, Yu X, Wang S, Zhang J. Caveolin-1 facilitates cell migration by upregulating nuclear receptor 4A2/retinoid X receptor α-mediated β-galactoside α2,6-sialyltransferase I expression in human hepatocarcinoma cells. Int J Biochem Cell Biol 2021; 137:106027. [PMID: 34157397 DOI: 10.1016/j.biocel.2021.106027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 06/04/2021] [Accepted: 06/16/2021] [Indexed: 12/24/2022]
Abstract
It has been reported that caveolin-1 (Cav-1) acts as a tumor promoter in hepatocellular carcinoma (HCC). Our previous studies showed that Cav-1 promoted mouse hepatocarcinoma cell adhesion to fibronectin by upregulating β-galactoside α2,6-sialyltransferase I (ST6Gal-I) expression. However, the detailed mechanism by which Cav-1 regulates ST6Gal-I is not fully understood. In this study, we found that the expression levels of Cav-1 and ST6Gal-I were increased in HCC tissues and correlated with poor prognosis. Cav-1 upregulated ST6Gal-I expression to promote the migration and invasion of HCC cells by inducing epithelial-to-mesenchymal transition. Importantly, the binding of the transcription factor nuclear receptor 4A2/retinoid X receptor alpha (NR4A2/RXRα) to the -550/-200 region of the ST6GAL1 promoter was critical for Cav-1-induced ST6GAL1 gene expression. Furthermore, Cav-1 expression activated the phosphatidylinositol 3-kinase/protein kinase B/mammalian target of rapamycin (PI3K/AKT/mTOR) signaling pathway, followed by upregulation of NR4A2 expression and phosphorylation of RXRα, which facilitated the complex of NR4A2 and phosphorylated RXRα forming and binding to the ST6GAL1 promoter region to induce its transcription. Finally, in the diethylnitrosamine (DEN)-induced HCC murine model, the expression levels of NR4A2, p-RXRα, ST6Gal-I, and α2,6-linked sialic acid decreased in parallel in Cav-1-/- mice compared with Cav-1+/+ mice, which was consistent with the above in vitro results. These findings provide insight into the mechanism of ST6GAL1 gene transcription mediated by Cav-1, which may lead to the development of novel therapeutic strategies targeting metastasis in HCC.
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Affiliation(s)
- Xixi Chen
- School of Life and Pharmaceutical Sciences, Dalian University of Technology, Panjin, China
| | - Liping Wang
- School of Life and Pharmaceutical Sciences, Dalian University of Technology, Panjin, China
| | - Xiao Yu
- Department of Pathology, College of Basic Medical Sciences, Dalian Medical University, Dalian, China
| | - Shujing Wang
- Department of Biochemistry and Molecular Biology, Institute of Glycobiology, Dalian Medical University, Dalian, China
| | - Jianing Zhang
- School of Life and Pharmaceutical Sciences, Dalian University of Technology, Panjin, China.
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20
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Bernal C, Silvano M, Tapponnier Y, Anand S, Angulo C, Ruiz i Altaba A. Functional Pro-metastatic Heterogeneity Revealed by Spiked-scRNAseq Is Shaped by Cancer Cell Interactions and Restricted by VSIG1. Cell Rep 2020; 33:108372. [PMID: 33176137 DOI: 10.1016/j.celrep.2020.108372] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Revised: 06/26/2020] [Accepted: 10/20/2020] [Indexed: 02/06/2023] Open
Abstract
How cells with metastatic potential, or pro-metastatic states, arise within heterogeneous primary tumors remains unclear. Here, we have used one index primary colon cancer to develop spiked-scRNAseq to link omics-defined single-cell clusters with cell behavior. Using spiked-scRNAseq we uncover cell populations with differential metastatic potential in which pro-metastatic states are correlated with the expression of signaling and vesicle-trafficking genes. Analyzing such heterogeneity, we define an anti-metastatic, non-cell-autonomous interaction originating from non-/low-metastatic cells, and identify membrane VSIG1 as a critical mediator of this interaction. VSIG1 acts to restrict the development of pro-metastatic states autonomously and non-cell autonomously, in part by inhibiting YAP/TAZ-TEAD signaling. As VSIG1 re-expression is able to reduce metastatic behavior from multiple colon cancer cell types, the regulation of VSIG1 or its effectors opens new interventional opportunities. In general, we propose that crosstalk between cancer cells, including the action of VSIG1, dynamically defines the degree of pro-metastatic intra-tumoral heterogeneity.
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Affiliation(s)
- Carolina Bernal
- Department of Genetic Medicine and Development, Faculty of Medicine, University of Geneva, CH-1211 Geneva, Switzerland
| | - Marianna Silvano
- Department of Genetic Medicine and Development, Faculty of Medicine, University of Geneva, CH-1211 Geneva, Switzerland
| | - Yann Tapponnier
- Department of Genetic Medicine and Development, Faculty of Medicine, University of Geneva, CH-1211 Geneva, Switzerland
| | - Santosh Anand
- Department of Genetic Medicine and Development, Faculty of Medicine, University of Geneva, CH-1211 Geneva, Switzerland
| | - Cecilia Angulo
- Department of Genetic Medicine and Development, Faculty of Medicine, University of Geneva, CH-1211 Geneva, Switzerland
| | - Ariel Ruiz i Altaba
- Department of Genetic Medicine and Development, Faculty of Medicine, University of Geneva, CH-1211 Geneva, Switzerland.
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21
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Taskaeva I, Bgatova N, Gogaeva I. Lithium effects on vesicular trafficking in hepatocellular carcinoma cells. Ultrastruct Pathol 2019; 43:301-311. [PMID: 31826700 DOI: 10.1080/01913123.2019.1701167] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Hepatocellular carcinoma (HCC) is one of the most commonly malignant tumors worldwide, characterized by the presence of many heterogeneous molecular cell events that contribute to tumor growth and progression. Endocytic processes are intimately involved in various pathological conditions, including cancer, since they interface with various cellular signaling programs. The ability of lithium to induce cell death and autophagy and affect cell proliferation and intracellular signaling has been shown in various experimental tumor models. The aim of this study was to evaluate the effects of lithium on vesicular transport in hepatocellular carcinoma cells. Using transmission electron microscopy we have characterized the endocytic apparatus in hepatocellular carcinoma-29 (HCC-29) cells in vivo and detailed changes in endocytotic vesicles after 20 mM lithium carbonate administration. Immunofluorescent analysis was used to quantify cells positive for EEA1-positive early endosomes, Rab11-positive recycling endosomes and Rab7-positive late endosomes. Lithium treatment caused an increase in EEA1- and Rab11-positive structures and a decrease in Rab7-positive vesicles. Thus, lithium affects diverse endocytic pathways in HCC-29 cells which may modulate growth and development of hepatocellular carcinoma.
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Affiliation(s)
- Iuliia Taskaeva
- Laboratory of Ultrastructural Research, Research Institute of Clinical and Experimental Lymphology - Branch of the Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia.,Laboratory of Boron-Neutron Capture Therapy, Department of Physics, Novosibirsk State University, Novosibirsk, Russia
| | - Nataliya Bgatova
- Laboratory of Ultrastructural Research, Research Institute of Clinical and Experimental Lymphology - Branch of the Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
| | - Izabella Gogaeva
- Laboratory of Ultrastructural Research, Research Institute of Clinical and Experimental Lymphology - Branch of the Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
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