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Lee JB, Pyo KH, Kim HR. Role and Function of O-GlcNAcylation in Cancer. Cancers (Basel) 2021; 13:cancers13215365. [PMID: 34771527 PMCID: PMC8582477 DOI: 10.3390/cancers13215365] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 10/11/2021] [Accepted: 10/20/2021] [Indexed: 01/06/2023] Open
Abstract
Simple Summary Despite the rapid advancement in immunotherapy and targeted agents, many patients diagnosed with cancer have poor prognosis with dismal overall survival. One of the key hallmarks of cancer is the ability of cancer cells to reprogram their energy metabolism. O-GlcNAcylation is an emerging potential mechanism for cancer cells to induce proliferation and progression of tumor cells and resistance to chemotherapy. This review summarizes the mechanism behind O-GlcNAcylation and discusses the role of O-GlcNAcylation, including its function with receptor tyrosine kinase and chemo-resistance in cancer, and immune response to cancer and as a prognostic factor. Further pre-clinical studies on O-GlcNAcylation are warranted to assess the clinical efficacy of agents targeting O-GlcNAcylation. Abstract Cancer cells are able to reprogram their glucose metabolism and retain energy via glycolysis even under aerobic conditions. They activate the hexosamine biosynthetic pathway (HBP), and the complex interplay of O-linked N-acetylglucosaminylation (O-GlcNAcylation) via deprivation of nutrients or increase in cellular stress results in the proliferation, progression, and metastasis of cancer cells. Notably, cancer is one of the emerging diseases associated with O-GlcNAcylation. In this review, we summarize studies that delineate the role of O-GlcNAcylation in cancer, including its modulation in metastasis, function with receptor tyrosine kinases, and resistance to chemotherapeutic agents, such as cisplatin. In addition, we discuss the function of O-GlcNAcylation in eliciting immune responses associated with immune surveillance in the tumor microenvironment. O-GlcNAcylation is increasingly accepted as one of the key players involved in the activation and differentiation of T cells and macrophages. Finally, we discuss the prognostic role of O-GlcNAcylation and potential therapeutic agents such as O-linked β-N-acetylglucosamine-transferase inhibitors, which may help overcome the resistance mechanism associated with the reprogramming of glucose metabolism.
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Affiliation(s)
- Jii Bum Lee
- Division of Hemato-Oncology, Wonju Severance Christian Hospital, Yonsei University Wonju College of Medicine, Wonju 26426, Korea;
- Division of Medical Oncology, Department of Internal Medicine, Yonsei Cancer Center, Yonsei University College of Medicine, Seoul 06273, Korea
| | - Kyoung-Ho Pyo
- Department of Medical Science, Yonsei University College of Medicine, Seoul 06273, Korea
- Correspondence: (K.-H.P.); (H.R.K.); Tel.: +82-2228-0869 (K.-H.P.); +82-2228-8125 (H.R.K.)
| | - Hye Ryun Kim
- Division of Medical Oncology, Department of Internal Medicine, Yonsei Cancer Center, Yonsei University College of Medicine, Seoul 06273, Korea
- Correspondence: (K.-H.P.); (H.R.K.); Tel.: +82-2228-0869 (K.-H.P.); +82-2228-8125 (H.R.K.)
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Heckman CA, Biswas T, Dimick DM, Cayer ML. Activated Protein Kinase C (PKC) Is Persistently Trafficked with Epidermal Growth Factor (EGF) Receptor. Biomolecules 2020; 10:E1288. [PMID: 32906765 PMCID: PMC7563713 DOI: 10.3390/biom10091288] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Revised: 09/02/2020] [Accepted: 09/05/2020] [Indexed: 12/22/2022] Open
Abstract
Protein kinase Cs (PKCs) are activated by lipids in the plasma membrane and bind to a scaffold assembled on the epidermal growth factor (EGF) receptor (EGFR). Understanding how this complex is routed is important, because this determines whether EGFR is degraded, terminating signaling. Here, cells were preincubated in EGF-tagged gold nanoparticles, then allowed to internalize them in the presence or absence of a phorbol ester PKC activator. PKC colocalized with EGF-tagged nanoparticles within 5 min and migrated with EGFR-bearing vesicles into the cell. Two conformations of PKC-epsilon were distinguished by different primary antibodies. One, thought to be enzymatically active, was on endosomes and displayed a binding site for antibody RR (R&D). The other, recognized by Genetex green (GG), was soluble, on actin-rich structures, and loosely bound to vesicles. During a 15-min chase, EGF-tagged nanoparticles entered large, perinuclear structures. In phorbol ester-treated cells, vesicles bearing EGF-tagged nanoparticles tended to enter this endocytic recycling compartment (ERC) without the GG form. The correlation coefficient between the GG (inactive) and RR conformations on vesicles was also lower. Thus, active PKC has a Charon-like function, ferrying vesicles to the ERC, and inactivation counteracts this function. The advantage conferred on cells by aggregating vesicles in the ERC is unclear.
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Affiliation(s)
- Carol A. Heckman
- Department of Biological Sciences, 217 Life Science Building, Bowling Green State University, Bowling Green, OH 43403, USA;
| | - Tania Biswas
- Department of Biological Sciences, 217 Life Science Building, Bowling Green State University, Bowling Green, OH 43403, USA;
| | - Douglas M. Dimick
- Department of Physics & Astronomy, 104 Overman Hall, Bowling Green State University, Bowling Green, OH 43403, USA;
| | - Marilyn L. Cayer
- Center for Microscopy & Microanalysis, 217 Life Science Building, Bowling Green State University, Bowling Green, OH 43403, USA;
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Rahmani S, Defferrari MS, Wakarchuk WW, Antonescu CN. Energetic adaptations: Metabolic control of endocytic membrane traffic. Traffic 2019; 20:912-931. [DOI: 10.1111/tra.12705] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Revised: 09/11/2019] [Accepted: 10/13/2019] [Indexed: 12/18/2022]
Affiliation(s)
- Sadia Rahmani
- Department of Chemistry and BiologyRyerson University Toronto Ontario Canada
| | | | - Warren W. Wakarchuk
- Department of Chemistry and BiologyRyerson University Toronto Ontario Canada
- Department of Biological SciencesUniversity of Alberta Edmonton Alberta Canada
| | - Costin N. Antonescu
- Department of Chemistry and BiologyRyerson University Toronto Ontario Canada
- Keenan Research Centre for Biomedical Science of St. Michael's Hospital Toronto Ontario Canada
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Manwar Hussain MR, Iqbal Z, Qazi WM, Hoessli DC. Charge and Polarity Preferences for N-Glycosylation: A Genome-Wide In Silico Study and Its Implications Regarding Constitutive Proliferation and Adhesion of Carcinoma Cells. Front Oncol 2018. [PMID: 29541627 PMCID: PMC5835500 DOI: 10.3389/fonc.2018.00029] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
The structural and functional diversity of the human proteome is mediated by N- and O-linked glycosylations that define the individual properties of extracellular and membrane-associated proteins. In this study, we utilized different computational tools to perform in silico based genome-wide mapping of 1,117 human proteins and unravel the contribution of both penultimate and vicinal amino acids for the asparagine-based, site-specific N-glycosylation. Our results correlate the non-canonical involvement of charge and polarity environment of classified amino acids (designated as L, O, A, P, and N groups) in the N-glycosylation process, as validated by NetNGlyc predictions, and 130 literature-reported human proteins. From our results, particular charge and polarity combinations of non-polar aliphatic, acidic, basic, and aromatic polar side chain environment of both penultimate and vicinal amino acids were found to promote the N-glycosylation process. However, the alteration in side-chain charge and polarity environment of genetic variants, particularly in the vicinity of Asn-containing epitope, may induce constitutive glycosylation (e.g., aberrant glycosylation at preferred and non-preferred sites) of membrane proteins causing constitutive proliferation and triggering epithelial-to-mesenchymal transition. The current genome-wide mapping of 1,117 proteins (2,909 asparagine residues) was used to explore charge- and polarity-based mechanistic constraints in N-glycosylation, and discuss alterations of the neoplastic phenotype that can be ascribed to N-glycosylation at preferred and non-preferred sites.
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Affiliation(s)
- Muhammad Ramzan Manwar Hussain
- Key Laboratory of Genome Sciences & Information, Beijing Institute of Genomics (CAS), Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Zeeshan Iqbal
- Institute of Molecular Sciences & Bioinformatics, Lahore, Pakistan.,Department of Physics, GC University Lahore, Lahore, Pakistan
| | - Wajahat M Qazi
- Center for Intelligent Machines and Robotics, Department of Computer Science, COMSATS Institute of Information Technology, Lahore, Pakistan
| | - Daniel C Hoessli
- Institute of Molecular Sciences & Bioinformatics, Lahore, Pakistan.,Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan
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Stateva SR, Villalobo A. O-GlcNAcylation of the human epidermal growth factor receptor. Org Biomol Chem 2016; 13:8196-204. [PMID: 26108188 DOI: 10.1039/c5ob00443h] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The reversible O-linked attachment of single β-D-N-acetylglucosamine (GlcNAc) moieties to serine/threonine residues in target proteins is a frequently occurring post-translational modification affecting the functionality of many cellular systems. In this report we present experimental evidence suggesting that the epidermal growth factor receptor (EGFR) is subjected to O-GlcNAcylation in human carcinoma epidermoid A431 cells and human lung carcinoma A549 cells. However, no signal was detected in human cervix adenocarcinoma HeLa cells or in mouse EGFR-T17 fibroblasts ectopically expressing the human EGFR. We detected a positive O-GlcNAcylation signal in the immunoprecipitated EGFR by Western blotting using two distinct specific anti-O-GlcNAc antibodies even after N-deglycosylation of the receptor using peptide-N-glycosidase F (PNGase F). Conversely, the presence of EGFR was detected by Western blotting using an anti-EGFR antibody in the immunocomplex of O-GlcNAcylated proteins immunoprecipitated with an anti-O-GlcNAc antibody. These signals were enhanced when the O-linked β-N-acetylglucosaminidase (OGA) inhibitor Thiamet G was added to prevent the deglycosylation of the GlcNAc moiety(ies). Moreover, we also detected a positive signal in the immunoprecipitated and N-deglycosylated EGFR using PNGase F, and tunicamycin when the cells were metabolically labeled with azido-GlcNAc (GlcNAz), biotinylated and probed with a streptavidin-labeled peroxidase. Finally, EGFR and O-linked β-N-acetylglucosamine transferase (OGT) co-immunoprecipitate, and incubation of the immunoprecipitated EGFR with the immunoprecipitated OGT in the presence of uridine 5'-diphospho-N-acetylglucosamine (UDP-GlcNAc) resulted in a significant enhancement of the EGFR O-GlcNAcylation signal as detected by Western blotting using an anti-O-GlcNAc antibody. We conclude that the human EGFR is subjected to O-GlcNAcylation in the A431 and A549 tumor cell lines.
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Affiliation(s)
- Silviya R Stateva
- Department of Cancer Biology, Instituto de Investigaciones Biomédicas, Consejo Superior de Investigaciones Científicas and Universidad Autónoma de Madrid, c/Arturo Duperier 4, E-28029 Madrid, Spain.
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Joshi S, Kumar S, Choudhury A, Ponnusamy MP, Batra SK. Altered Mucins (MUC) trafficking in benign and malignant conditions. Oncotarget 2015; 5:7272-84. [PMID: 25261375 PMCID: PMC4202122 DOI: 10.18632/oncotarget.2370] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Mucins are high molecular weight O-glycoproteins that are predominantly expressed at the apical surface of epithelial cells and have wide range of functions. The functional diversity is attributed to their structure that comprises of a peptide chain with unique domains and multiple carbohydrate moieties added during posttranslational modifications. Tumor cells aberrantly overexpress mucins, and thereby promote proliferation, differentiation, motility, invasion and metastasis. Along with their aberrant expression, accumulating evidence suggest the critical role of altered subcellular localization of mucins under pathological conditions due to altered endocytic processes. The mislocalization of mucins and their interactions result in change in the density and activity of important cell membrane proteins (like, receptor tyrosine kinases) to facilitate various signaling, which help cancer cells to proliferate, survive and progress to more aggressive phenotype. In this review article, we summarize studies on mucins trafficking and provide a perspective on its importance to pathological conditions and to answer critical questions including its use for therapeutic interventions.
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Affiliation(s)
- Suhasini Joshi
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198, U.S.A
| | - Sushil Kumar
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198, U.S.A
| | | | - Moorthy P Ponnusamy
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198, U.S.A
| | - Surinder K Batra
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198, U.S.A. Fred and Pamela Buffett Cancer Center, Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE 68198, U.S.A
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Liu BQ, Meng X, Li C, Gao YY, Li N, Niu XF, Guan Y, Wang HQ. Glucosamine induces cell death via proteasome inhibition in human ALVA41 prostate cancer cell. Exp Mol Med 2012; 43:487-93. [PMID: 21697645 DOI: 10.3858/emm.2011.43.9.055] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Glucosamine, a naturally occurring amino monosaccharide, has been reported to play a role in the regulation of apoptosis more than half century. However the effect of glucosamine on tumor cells and the involved molecular mechanisms have not been thoroughly investigated. Glucosamine enters the hexosamine biosynthetic pathway (HBP) downstream of the rate-limiting step catalyzed by the GFAT (glutamine:fluctose- 6-phosphate amidotransferase), providing UDPGlcNAc substrates for O-linked β-N-acetylglucosamine (O-GlcNAc) protein modification. Considering that O-GlcNAc modification of proteasome subunits inhibits its activity, we examined whether glucosamine induces growth inhibition via affecting proteasomal activity. In the present study, we found glucosamine inhibited proteasomal activity and the proliferation of ALVA41 prostate cancer cells. The inhibition of proteasomal activity results in the accumulation of ubiquitinated proteins, followed by induction of apoptosis. In addition, we demonstrated that glucosamine downregulated proteasome activator PA28γ and overexpression of PA28γ rescued the proteasomal activity and growth inhibition mediated by glucosamine. We further demonstrated that inhibition of O-GlcNAc abrogated PA28γ suppression induced by glucosamine. These findings suggest that glucosamine may inhibit growth of ALVA41 cancer cells through downregulation of PA28γ and inhibition of proteasomal activity via O-GlcNAc modification.
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Affiliation(s)
- Bao-Qin Liu
- Department of Biochemistry and Molecular Biology, Key Laboratory of Medical Cell Biology, Ministry of Education, China Medical University, Shenyang 110001, China
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Evans JD, Crown RA, Sohn JA, Seeger C. West Nile virus infection induces depletion of IFNAR1 protein levels. Viral Immunol 2011; 24:253-63. [PMID: 21830897 DOI: 10.1089/vim.2010.0126] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Productive virus infection requires evasion, inhibition, or subversion of innate immune responses. West Nile virus (WNV), a human pathogen that can cause symptomatic infections associated with meningitis and encephalitis, inhibits the interferon (IFN) signal transduction pathway by preventing phosphorylation of Janus kinases and STAT transcription factors. Inhibition of the IFN signal cascade abrogates activation of IFN-induced genes, thus attenuating an antiviral response. We investigated the mechanism responsible for this inhibition and found that WNV infection prevents accumulation of the IFN-α receptor subunit 1 (IFNAR1). The WNV-induced depletion of IFNAR1 was conserved across multiple cell types. Our results indicated that expression of WNV nonstructural proteins resulted in activated lysosomal and proteasomal protein degradation pathways independent of the unfolded protein response (UPR). Furthermore, WNV infection did not induce serine phosphorylation, a modification on IFNAR1 that precedes its natural turnover. These data demonstrate that WNV infection results in a reduction of IFNAR1 protein through a non-canonical protein degradation pathway, and may participate in the inhibition of the IFN response.
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Affiliation(s)
- Jared D Evans
- Institute for Cancer Research , Fox Chase Cancer Center, Pittsburgh, PA 15261, USA.
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Yao LL, Liu XY, Jin JY, Tao BB, Chen YJ, Yu YC, Bian WH, Yu J, Huang J, Wang YG. Expression and ultrastructural localization of Mint2 in the spinal cord of rats. Mol Biol Rep 2010; 38:667-73. [PMID: 20369384 DOI: 10.1007/s11033-010-0153-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2010] [Accepted: 03/25/2010] [Indexed: 12/11/2022]
Abstract
Mint protein family, as adaptor molecules, contains three members, Mint1, Mint2 and Mint3. Although Mint3 is ubiquitously expressed, Mint1 and Mint2 have been reported to express specifically in neuron. Here we demonstrated Mint1 and Mint2 expression pattern in rat spinal cord. The protein level of Mint2 was found to be higher than that of Mint1 in rat spinal by western blot. In an attempt to know Mint2 distribution in the spinal cord of rat, in situ hybridization was carried out, Mint2 mRNA was showed to be ubiquitously distributed in cervical, thoracic and lumbar sections of rat spinal cord, and high intensive signal was detected in motor neurons. These were further confirmed by fluorescent immunohistochemistry, Mint2 was also found to exist throughout gray matter especially motor neurons where Mint2 was mainly located in perikaryon, however, Mint1 was showed to be relatively lower. By electron microscope, Mint2 was found to be mainly located in vesicles in perikaryon in motor neuron of lumbar section, and at the same time Mint2 was located in axons in myelin and presynaptic terminals. These data suggest that Mint2 may play more important role in spinal cord than the other two family members.
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Affiliation(s)
- Ling-Ling Yao
- Department of Physiology and Pathophysiology, Fudan University Shanghai Medical College, and Neurology Department of ShangHai Tenth People Hospital, Shanghai, 200032, China
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Kaleem A, Ahmad I, Walker-Nasir E, Hoessli DC, Shakoori AR. Effect on the Ras/Raf signaling pathway of post-translational modifications of neurofibromin: in silico study of protein modification responsible for regulatory pathways. J Cell Biochem 2010; 108:816-24. [PMID: 19718661 DOI: 10.1002/jcb.22301] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Mapping and chemical characterization of post-translational modifications (PTMs) in proteins are critical to understand the regulatory mechanisms involving modified proteins and their role in disease. Neurofibromatosis type 1 (NF-1) is an autosomal dominantly inherited disorder, where NF1 mutations usually result in a reduced level of the tumor suppressor protein, neurofibromin (NF). NF is a multifunctional cytoplasmic protein that regulates microtubule dynamics and participates in several signaling pathways, particularly the RAS signaling pathway. NF is a Ras GTPase-activating protein (GAP) that prevents oncogenesis by converting GTP-Ras to GDP-Ras. This function of NF is regulated by phosphorylation. Interplay of phosphorylation with O-GlcNAc modification on the same or vicinal Ser/Thr residues, the Yin Yang sites, is well known in cytoplasmic and nuclear proteins. The dynamic aspects of PTMs and their interplay being difficult to follow in vivo, we undertook this in silico work to predict and define the possible role of Yin Yang sites in NF-1. Interplay of phosphorylation and O-GlcNAc modification is proposed as a mechanism controlling the Ras signaling pathway.
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Affiliation(s)
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- Institute of Molecular Sciences and Bioinformatics, Lahore, Pakistan.
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Ahmad I, Mehmood A, Khurshid A, Qazi WM, Hoessli DC, Walker-Nasir E, Shakoori AR, Nasir-ud-Din. Phosphoproteome sequence analysis and significance: Mining association patterns around phosphorylation sites utilizing MAPRes. J Cell Biochem 2009; 108:64-74. [DOI: 10.1002/jcb.22220] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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