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Perez SJLP, Chen CL, Chang TT, Li WS. Biological evaluation of sulfonate and sulfate analogues of lithocholic acid: A bioisosterism-guided approach towards the discovery of potential sialyltransferase inhibitors for antimetastatic study. Bioorg Med Chem Lett 2024; 105:129760. [PMID: 38641151 DOI: 10.1016/j.bmcl.2024.129760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2023] [Revised: 02/12/2024] [Accepted: 04/16/2024] [Indexed: 04/21/2024]
Abstract
The naturally occurring bile acid lithocholic acid (LCA) has been a crucial core structure for many non-sugar-containing sialyltranferase (ST) inhibitors documented in literature. With the aim of elucidating the impact of the terminal carboxyl acid substituent of LCA on its ST inhibition, in this present study, we report the (bio)isosteric replacement-based design and synthesis of sulfonate and sulfate analogues of LCA. Among these compounds, the sulfate analogue SPP-002 was found to selectively inhibit N-glycan sialylation by at least an order of magnitude, indicating a substantial improvement in both potency and selectivity when compared to the unmodified parent bile acid. Molecular docking analysis supported the stronger binding of the synthetic analogue in the enzyme active site. Treatment with SPP-002 also hampered the migration, adhesion, and invasion of MDA-MB-231 cells in vitro by suppressing the expression of signaling proteins involved in the cancer metastasis-associated integrin/FAK/paxillin pathway. In totality, these findings offer not only a novel structural scaffold but also valuable insights for the future development of more potent and selective ST inhibitors with potential therapeutic effects against tumor cancer metastasis.
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Affiliation(s)
- Ser John Lynon P Perez
- Institute of Chemistry, Academia Sinica, Taipei 115, Taiwan; Department of Applied Chemistry, National Yang Ming Chiao Tung University, Hsinchu 300, Taiwan; Sustainable Chemical Science and Technology, Taiwan International Graduate Program, Academia Sinica, Taipei 115, Taiwan; Biomedical Translation Research Center, Academia Sinica, Taipei 115, Taiwan
| | - Chia-Ling Chen
- Institute of Chemistry, Academia Sinica, Taipei 115, Taiwan
| | - Tzu-Ting Chang
- Biomedical Translation Research Center, Academia Sinica, Taipei 115, Taiwan
| | - Wen-Shan Li
- Institute of Chemistry, Academia Sinica, Taipei 115, Taiwan; Sustainable Chemical Science and Technology, Taiwan International Graduate Program, Academia Sinica, Taipei 115, Taiwan; Biomedical Translation Research Center, Academia Sinica, Taipei 115, Taiwan; Department of Medicinal and Applied Chemistry, College of Life Science, Kaohsiung Medical University, Kaohsiung 807, Taiwan; Ph.D. Program in Drug Discovery and Development Industry, College of Pharmacy, Taipei Medical University; Doctoral Degree Program in Marine Biotechnology, National Sun Yat-Sen University, Kaohsiung 804, Taiwan; Department of Chemistry, College of Science, Tamkang University, New Taipei City 251, Taiwan.
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Pei C, Peng X, Wu Y, Jiao R, Li T, Jiao S, Zhou L, Li J, Du Y, Qian EW. Characterization and application of active human α2,6-sialyltransferases ST6GalNAc V and ST6GalNAc VI recombined in Escherichia coli. Enzyme Microb Technol 2024; 177:110426. [PMID: 38503081 DOI: 10.1016/j.enzmictec.2024.110426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 02/25/2024] [Accepted: 03/11/2024] [Indexed: 03/21/2024]
Abstract
Eukaryotic sialyltransferases play key roles in many physiological and pathological events. The expression of active human recombinant sialyltransferases in bacteria is still challenging. In the current study, the genes encoding human N-acetylgalactosaminide α2,6-sialyltransferase V (hST6GalNAc V) and N-acetylgalactosaminide α2,6-sialyltransferase VI (hST6GalNAc VI) lacking the N-terminal transmembrane domains were cloned into the expression vectors, pET-32a and pET-22b, respectively. Soluble and active forms of recombinant hST6GalNAc V and hST6GalNAc VI when coexpressed with the chaperone plasmid pGro7 were successfully achieved in Escherichia coli. Further, lactose (Lac), Lacto-N-triose II (LNT II), lacto-N-tetraose (LNT), and sialyllacto-N-tetraose a (LSTa) were used as acceptor substrates to investigate their activities and substrate specificities. Unexpectedly, both can transfer sialic acid onto all those substrates. Compared with hST6GalNAc V expressed in the mammalian cells, the recombinant two α2,6-sialyltransferases in bacteria displayed flexible substrate specificities and lower enzymatic efficiency. In addition, an important human milk oligosaccharide disialyllacto-N-tetraose (DSLNT) can be synthesized by both human α2,6-sialyltransferases expressed in E. coli using LSTa as an acceptor substrate. To the best of our knowledge, these two active human α2,6-sialyltransferases enzymes were expressed in bacteria for the first time. They showed a high potential to be applied in biotechnology and investigating the molecular mechanisms of biological and pathological interactions related to sialylated glycoconjugates.
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Affiliation(s)
- Caixia Pei
- Graduate School of Bio-Applications and Systems Engineering, Tokyo University of Agriculture and Technology, Nakacho 2-24-16, Koganei, Tokyo 184-8588, Japan; State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China; Key Laboratory of Biopharmaceutical Preparation and Delivery, Chinese Academy of Sciences, Beijing 100190, China
| | - Xinlv Peng
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China; Key Laboratory of Biopharmaceutical Preparation and Delivery, Chinese Academy of Sciences, Beijing 100190, China; School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yiran Wu
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China; Key Laboratory of Biopharmaceutical Preparation and Delivery, Chinese Academy of Sciences, Beijing 100190, China; School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Runmiao Jiao
- Graduate School of Bio-Applications and Systems Engineering, Tokyo University of Agriculture and Technology, Nakacho 2-24-16, Koganei, Tokyo 184-8588, Japan; State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China; Key Laboratory of Biopharmaceutical Preparation and Delivery, Chinese Academy of Sciences, Beijing 100190, China
| | - Tiehai Li
- Carbohydrate-Based Drug Research Center, CAS Key Laboratory of Receptor Research, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China
| | - Siming Jiao
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China; Key Laboratory of Biopharmaceutical Preparation and Delivery, Chinese Academy of Sciences, Beijing 100190, China; Innovation Academy for Green Manufacture Institute, Chinese Academy of Sciences, Beijing 100190, China
| | - Lei Zhou
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China; Key Laboratory of Biopharmaceutical Preparation and Delivery, Chinese Academy of Sciences, Beijing 100190, China; Innovation Academy for Green Manufacture Institute, Chinese Academy of Sciences, Beijing 100190, China
| | - Jianjun Li
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China; Key Laboratory of Biopharmaceutical Preparation and Delivery, Chinese Academy of Sciences, Beijing 100190, China; Innovation Academy for Green Manufacture Institute, Chinese Academy of Sciences, Beijing 100190, China.
| | - Yuguang Du
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China; Key Laboratory of Biopharmaceutical Preparation and Delivery, Chinese Academy of Sciences, Beijing 100190, China; Innovation Academy for Green Manufacture Institute, Chinese Academy of Sciences, Beijing 100190, China.
| | - Eika W Qian
- Graduate School of Bio-Applications and Systems Engineering, Tokyo University of Agriculture and Technology, Nakacho 2-24-16, Koganei, Tokyo 184-8588, Japan.
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Tsai HE, Chen CL, Chang TT, Fu CW, Chen WC, Perez SJLP, Hsiao PW, Tai MH, Li WS. Development of a Novel, Potent, and Selective Sialyltransferase Inhibitor for Suppressing Cancer Metastasis. Int J Mol Sci 2024; 25:4283. [PMID: 38673867 DOI: 10.3390/ijms25084283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2024] [Revised: 04/01/2024] [Accepted: 04/08/2024] [Indexed: 04/28/2024] Open
Abstract
Sialyltransferase-catalyzed membrane protein and lipid glycosylation plays a vital role as one of the most abundant post-translational modifications and diversification reactions in eukaryotes. However, aberrant sialylation has been associated with cancer malignancy and metastasis. Sialyltransferases thus represent emerging targets for the development of small molecule cancer drugs. Herein, we report the inhibitory effects of a recently discovered lithocholic acid derivative FCW393 on sialyltransferase catalytic activity, integrin sialyation, cancer-associated signal transduction, MDA-MB-231 and B16F10 cell migration and invasion, and in in vivo studies, on tumor growth, metastasis, and angiogenesis. FCW393 showed effective and selective inhibition of the sialyltransferases ST6GAL1 (IC50 = 7.8 μM) and ST3GAL3 (IC50 = 9.45 μM) relative to ST3GAL1 (IC50 > 400 μM) and ST8SIA4 (IC50 > 100 μM). FCW393 reduced integrin sialylation in breast cancer and melanoma cells dose-dependently and downregulated proteins associated with the integrin-regulated FAK/paxillin and GEF/Rho/ROCK pathways, and with the VEGF-regulated Akt/NFκB/HIF-1α pathway. FCW393 inhibited cell migration (IC50 = 2.6 μM) and invasion in in vitro experiments, and in in vivo studies of tumor-bearing mice, FCW393 reduced tumor size, angiogenesis, and metastatic potential. Based on its demonstrated selectivity, cell permeability, relatively low cytotoxicity (IC50 = 55 μM), and high efficacy, FCW393 shows promising potential as a small molecule experimental tool compound and a lead for further development of a novel cancer therapeutic.
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Grants
- AS-KPQ-110-EIMD, AS-KPQ-109-BioMed, AS-KPQ-110-BioMed and AS-KPQ-111-KNT Academia Sinica
- MOST, Taiwan, MOST 110-0210-01-22-02, MOST-108-3114-Y-001-002, MOST 108-3111-Y-001-056, MOST 106-2113-M-001-011, MOST 103-2325-B-001-001 and MOST108-2314-B-110-003-MY2 Ministry of Science and Technology, TAIWAN
- 108-36 Kaohsiung Armed Forces General Hospital, TAIWAN
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Affiliation(s)
- Han-En Tsai
- Institute of Chemistry, Academia Sinica, Taipei 115, Taiwan
| | - Chia-Ling Chen
- Institute of Chemistry, Academia Sinica, Taipei 115, Taiwan
| | - Tzu-Ting Chang
- Biomedical Translation Research Center, Academia Sinica, National Biotechnology Research Park, Taipei 115, Taiwan
| | - Chih-Wei Fu
- Institute of Chemistry, Academia Sinica, Taipei 115, Taiwan
- Department of Chemistry, National Central University, Taoyuan 320, Taiwan
| | - Wei-Chia Chen
- Institute of Chemistry, Academia Sinica, Taipei 115, Taiwan
- Department of Chemistry, National Taiwan Normal University, Taipei 106, Taiwan
| | - Ser John Lynon P Perez
- Institute of Chemistry, Academia Sinica, Taipei 115, Taiwan
- Biomedical Translation Research Center, Academia Sinica, National Biotechnology Research Park, Taipei 115, Taiwan
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, Hsinchu 300, Taiwan
- Sustainable Chemical Science and Technology, Taiwan International Graduate Program, National Yang Ming Chiao Tung University and Academia Sinica, Taipei 115, Taiwan
| | - Pei-Wen Hsiao
- Agricultural Biotechnology Research Center, Academia Sinica, Taipei 115, Taiwan
| | - Ming-Hong Tai
- Doctoral Degree Program in Marine Biotechnology, National Sun Yat-Sen University, Kaohsiung 804, Taiwan
- Center for Neuroscience, National Sun Yat-Sen University, Kaohsiung 804, Taiwan
- Institute of Biomedical Sciences, National Sun Yat-Sen University, Kaohsiung 804, Taiwan
| | - Wen-Shan Li
- Institute of Chemistry, Academia Sinica, Taipei 115, Taiwan
- Biomedical Translation Research Center, Academia Sinica, National Biotechnology Research Park, Taipei 115, Taiwan
- Sustainable Chemical Science and Technology, Taiwan International Graduate Program, National Yang Ming Chiao Tung University and Academia Sinica, Taipei 115, Taiwan
- Doctoral Degree Program in Marine Biotechnology, National Sun Yat-Sen University, Kaohsiung 804, Taiwan
- Ph.D. Program in Drug Discovery and Development Industry, College of Pharmacy, Taipei Medical University, Taipei 110, Taiwan
- Department of Medicinal and Applied Chemistry, College of Life Science, Kaohsiung Medical University, Kaohsiung 807, Taiwan
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Liu J, Dong X, Xie R, Tang Y, Thomas AM, Li S, Liu S, Yu M, Qin H. N-linked α2,6-sialylation of integrin β1 by the sialyltransferase ST6Gal1 promotes cell proliferation and stemness in gestational trophoblastic disease. Placenta 2024; 149:18-28. [PMID: 38490094 DOI: 10.1016/j.placenta.2024.03.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 03/02/2024] [Accepted: 03/09/2024] [Indexed: 03/17/2024]
Abstract
INTRODUCTION Gestational trophoblastic disease (GTD) encompasses a spectrum of rare pre-malignant and malignant entities originating from trophoblastic tissue, including partial hydatidiform mole, complete hydatidiform mole and choriocarcinoma. β-galactoside α2,6 sialyltransferase 1 (ST6Gal1), the primary sialyltransferase responsible for the addition of α2,6 sialic acids, is strongly associated with the occurrence and development of several tumor types. However, the role of ST6Gal1/α2,6 -sialylation of trophoblast cells in GTD is still not well understood. METHODS The expression of ST6Gal1 was investigated in GTD and human immortalized trophoblastic HTR-8/SVneo cells and human gestational choriocarcinoma JAR cells. We evaluated the effect of ST6Gal1 on proliferation and stemness of trophoblastic cells. We also examined the effect of internal miR-199a-5p on ST6Gal1 expression. The role of ST6Gal1 in regulating α2,6-sialylated integrin β1 and its significance in the activation of integrin β1/focal adhesion kinase (FAK) signaling pathway were also explored. RESULTS ST6Gal1 was observed to be highly expressed in GTD. Overexpression of ST6Gal1 promoted the proliferation and stemness of HTR-8/SVneo cells, whereas knockdown of ST6Gal1 suppressed the viability and stemness of JAR cells. MiR-199a-5p targeted and inhibited the expression of ST6Gal1 in trophoblastic cells. In addition, we revealed integrin β1 was highly α2,6-sialylated in JAR cells. Inhibition of ST6Gal1 reduced α2,6-sialylation on integrin β1 and suppressed the integrin β1/FAK pathway in JAR cells, thereby affecting its biological functions. DISCUSSION This study demonstrated that ST6Gal1 plays important roles in promoting proliferation and stemness through the integrin β1 signaling pathway in GTD. Therefore, ST6Gal1 may have a potential role in the occurrence and development of GTD.
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Affiliation(s)
- Jianwei Liu
- Department of Biochemistry and Molecular Biology, Dalian Medical University, Liaoning Provincial Core Lab of Glycobiology and Glycoengineering, Dalian, China
| | - Xinyue Dong
- College of Life Science, Northeast Forestry University, Harbin, China; Center for Energy Metabolism and Reproduction, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Ru Xie
- Department of Pathology, The Second Affiliated Hospital, Dalian Medical University, Dalian, China
| | - Ying Tang
- Department of Pathology, The Second Affiliated Hospital, Dalian Medical University, Dalian, China
| | - Aline M Thomas
- The Russell H. Morgan Department of Radiology and Radiological Sciences, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Shen Li
- Department of Neurology and Psychiatry, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Shuai Liu
- Department of Biochemistry and Molecular Biology, Dalian Medical University, Liaoning Provincial Core Lab of Glycobiology and Glycoengineering, Dalian, China
| | - Ming Yu
- Center for Energy Metabolism and Reproduction, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China.
| | - Huamin Qin
- Department of Pathology, Beijing Shijitan Hospital, Capital Medical University, Beijing, China.
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Choi H, Song KH, Kim HD, Park JY, Lee YC, Choi HJ, Kim CH. Human ST3Gal II and ST6GalNAc IV genes increase human serum-mediated cytotoxicity to xenogeneic cells. Xenotransplantation 2024; 31:exen12855. [PMID: 38602029 DOI: 10.1111/xen.12855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 01/24/2024] [Accepted: 02/10/2024] [Indexed: 04/12/2024]
Abstract
Carbohydrate-antigens widely existed on glycoproteins and glycosphingolipids of all mammalian cells play a crucial role in self-defense and immunity. Xeno-reactive antibodies included in natural human sera play a protecting role in an acute phase-rejection of xenotransplantation. In this study, we investigated the effect of an alteration of glycosylation-pattern, caused by human sialyltransferases such as hST3Gal II or hST6GalNAc IV, on human serum mediated cytotoxicity in pig kidney PK15 cells. From LDH cytotoxicity assay, cytotoxicity to human serum was significantly increased in hST3Gal II and hST6GalNAc IV-transfected PK15 cells, as compared to the control. In the hST6Gal I-carrying cells, the cytotoxicity to human serum was rather decreased. Moreover, flow cytometry analysis revealed that an alteration of pig glycosylation-pattern by hST3Gal II or hST6GalNAc IV influences on a binding of human IgM or IgG, respectively, in pig kidney cells, regardless of Gal antigen alteration. Finally, we found that hST6GalNAc IV contributed to increase of terminal disialylated tetrasaccharide structure, disialyl T antigen, as evidenced by increase of the MAL II lectin binding capacity in the hST6GalNAc IV-transfected PK15 cells, compared with control. Therefore, our results suggest that carbohydrate antigens, such as disialyl T antigen, newly synthesized by the ST3Gal II- and ST6GalNAc IV are potentially believed to be new xeno-reactive elements.
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Affiliation(s)
- Hyunju Choi
- Molecular and Cellular Glycobiology Unit, Department of Biological Sciences, SungKyunKwan University, Suwon, South Korea
| | - Kwon-Ho Song
- Molecular and Cellular Glycobiology Unit, Department of Biological Sciences, SungKyunKwan University, Suwon, South Korea
- Department of Cell Biology, Daegu Catholic University School of Medicine, Daegu, South Korea
| | - Hee-Do Kim
- Molecular and Cellular Glycobiology Unit, Department of Biological Sciences, SungKyunKwan University, Suwon, South Korea
| | - Jun-Young Park
- Molecular and Cellular Glycobiology Unit, Department of Biological Sciences, SungKyunKwan University, Suwon, South Korea
| | - Young-Choon Lee
- Department of Medicinal Biotechnology, College of Health Sciences, Dong-A University, Saha-Gu, Busan, South Korea
| | - Hee-Jung Choi
- Jin BioCell Co., Ltd. R&D Center, #101-103, National Clinical Research Center for Korean Medicine, Pusan National University Korean Medicine Hospital, Yangsan, Gyeongsangnam-do, Republic of Korea
| | - Cheorl-Ho Kim
- Molecular and Cellular Glycobiology Unit, Department of Biological Sciences, SungKyunKwan University, Suwon, South Korea
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Sun S, Yang Z, Majdaeen M, Agbele AT, Abedi-Firouzjah R. Functions of Sialyltransferases in gynecological malignancies: A systematic review. Pathol Res Pract 2024; 254:155159. [PMID: 38306862 DOI: 10.1016/j.prp.2024.155159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Revised: 01/14/2024] [Accepted: 01/18/2024] [Indexed: 02/04/2024]
Abstract
INTRODUCTION The biosynthesis of tumor-associated sialoglycans involves Sialyltransferases expressed in cancer cells differentially. The current review aspires to bridge the existing knowledge gaps by consolidating evidence regarding the role of Sialyltransferases in gynecological malignant tumors (ovarian, cervix, endometrial, and breast). METHODS In this systematic review, we searched databases, including PubMed, Embase, Web of Science, Scopus and Cochrane Library. Twenty-two high-quality articles were selected out of 559 researched studies using radiomics quality score (RQS) tools. RESULTS Our findings indicated that 7 articles were related to Sialyltransferases in ovarian cancer, in which 6 studies was examined only ST6Gal-I and one study examined the ST3Gal-I, ST3Gal-II, ST3Gal-III, ST3Gal-IV, ST3Gal-VI, and ST3Gal-6. In addition, 5 articles were related to Sialyltransferases in cervix cancer (ST6Gal-I), 3 articles to endometrial cancer (ST6Gal-I, ST3Gal-III, ST3Gal-IV, and ST3Gal-6), and 7 articles to breast cancer (ST6Gal-I gene in 5 studies, ST6GAL-II gene in one study, and ST8SIA1 and ST3GAL-V genes in one study). CONCLUSION ST6Gal-I gene expression occurs at a high speed in ovarian, cervix, endometrial, and breast cancers, leading to metastasis to distant cells, cell destruction, cell invasion, and reduced patient survival.
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Affiliation(s)
- Siyuan Sun
- Department of Gynecology, The Central Hospital of Yongzhou, Yongzhou 425000, China
| | - Zhenying Yang
- Department of Gynecology, The Central Hospital of Yongzhou, Yongzhou 425000, China
| | - Mehrsa Majdaeen
- Department of Radio-Oncology, Razi Hospital, Guilan University of Medical Science, Rasht, Iran.
| | - Alaba Tolulope Agbele
- Department of Physics, Bamidele Olumilua University of Education, Science and Technology, Ikere, Ekiti, Nigeria
| | - Razzagh Abedi-Firouzjah
- Department of Medical Physics Radiobiology and Radiation Protection, School of Medicine, Babol University of Medical Sciences, Babol, Iran.
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Hatanaka R, Hane M, Hayakawa K, Morishita S, Ohno S, Yamaguchi Y, Wu D, Kitajima K, Sato C. Identification of a buried β-strand as a novel disease-related motif in the human polysialyltransferases. J Biol Chem 2024; 300:105564. [PMID: 38103644 PMCID: PMC10828065 DOI: 10.1016/j.jbc.2023.105564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2023] [Revised: 11/26/2023] [Accepted: 12/04/2023] [Indexed: 12/19/2023] Open
Abstract
The polysialyltransferases ST8SIA2 and ST8SIA4 and their product, polysialic acid (polySia), are known to be related to cancers and mental disorders. ST8SIA2 and ST8SIA4 have conserved amino acid (AA) sequence motifs essential for the synthesis of the polySia structures on the neural cell adhesion molecule. To search for a new motif in the polysialyltransferases, we adopted the in silico Individual Meta Random Forest program that can predict disease-related AA substitutions. The Individual Meta Random Forest program predicted a new eight-amino-acids sequence motif consisting of highly pathogenic AA residues, thus designated as the pathogenic (P) motif. A series of alanine point mutation experiments in the pathogenic motif (P motif) showed that most P motif mutants lost the polysialylation activity without changing the proper enzyme expression levels or localization in the Golgi. In addition, we evaluated the enzyme stability of the P motif mutants using newly established calculations of mutation energy, demonstrating that the subtle change of the conformational energy regulates the activity. In the AlphaFold2 model, we found that the P motif was a buried β-strand underneath the known surface motifs unique to ST8SIA2 and ST8SIA4. Taken together, the P motif is a novel buried β-strand that regulates the full activity of polysialyltransferases from the inside of the molecule.
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Affiliation(s)
- Rina Hatanaka
- Integrated Glyco-BioMedical Research Center (iGMED), Institute for Glyco-core Research (iGCORE), Nagoya University, Nagoya, Japan; Bioscience and Biotechnology Center, Nagoya University, Nagoya, Japan; Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan
| | - Masaya Hane
- Integrated Glyco-BioMedical Research Center (iGMED), Institute for Glyco-core Research (iGCORE), Nagoya University, Nagoya, Japan; Bioscience and Biotechnology Center, Nagoya University, Nagoya, Japan; Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan
| | - Kaito Hayakawa
- Integrated Glyco-BioMedical Research Center (iGMED), Institute for Glyco-core Research (iGCORE), Nagoya University, Nagoya, Japan; Bioscience and Biotechnology Center, Nagoya University, Nagoya, Japan; Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan
| | - Sayo Morishita
- Integrated Glyco-BioMedical Research Center (iGMED), Institute for Glyco-core Research (iGCORE), Nagoya University, Nagoya, Japan; Bioscience and Biotechnology Center, Nagoya University, Nagoya, Japan; Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan
| | - Shiho Ohno
- Division of Structural Biology, Institute of Molecular Biomembrane and Glycobiology, Tohoku Medical and Pharmaceutical University, Sendai, Japan
| | - Yoshiki Yamaguchi
- Division of Structural Biology, Institute of Molecular Biomembrane and Glycobiology, Tohoku Medical and Pharmaceutical University, Sendai, Japan
| | - Di Wu
- Integrated Glyco-BioMedical Research Center (iGMED), Institute for Glyco-core Research (iGCORE), Nagoya University, Nagoya, Japan; Bioscience and Biotechnology Center, Nagoya University, Nagoya, Japan; Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan
| | - Ken Kitajima
- Integrated Glyco-BioMedical Research Center (iGMED), Institute for Glyco-core Research (iGCORE), Nagoya University, Nagoya, Japan; Bioscience and Biotechnology Center, Nagoya University, Nagoya, Japan; Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan
| | - Chihiro Sato
- Integrated Glyco-BioMedical Research Center (iGMED), Institute for Glyco-core Research (iGCORE), Nagoya University, Nagoya, Japan; Bioscience and Biotechnology Center, Nagoya University, Nagoya, Japan; Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan.
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8
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Glendenning LM, Zhou JY, Kukan EN, Gao C, Cummings RD, Joshi S, Whiteheart SW, Cobb BA. Platelet-localized ST6Gal1 does not impact IgG sialylation. Glycobiology 2023; 33:943-953. [PMID: 37379323 PMCID: PMC10859628 DOI: 10.1093/glycob/cwad052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 06/22/2023] [Accepted: 06/23/2023] [Indexed: 06/30/2023] Open
Abstract
The IgG antibody class forms an important basis of the humoral immune response, conferring reciprocal protection from both pathogens and autoimmunity. IgG function is determined by the IgG subclass, as defined by the heavy chain, as well as the glycan composition at N297, the conserved site of N-glycosylation within the Fc domain. For example, lack of core fucose promotes increased antibody-dependent cellular cytotoxicity, whereas α2,6-linked sialylation by the enzyme ST6Gal1 helps to drive immune quiescence. Despite the immunological significance of these carbohydrates, little is known about how IgG glycan composition is regulated. We previously reported that mice with ST6Gal1-deficient B cells have unaltered IgG sialylation. Likewise, ST6Gal1 released into the plasma by hepatocytes does not significantly impact overall IgG sialylation. Since IgG and ST6Gal1 have independently been shown to exist in platelet granules, it was possible that platelet granules could serve as a B cell-extrinsic site for IgG sialylation. To address this hypothesis, we used a platelet factor 4 (Pf4)-Cre mouse to delete ST6Gal1 in megakaryocytes and platelets alone or in combination with an albumin-Cre mouse to also remove it from hepatocytes and the plasma. The resulting mouse strains were viable and had no overt pathological phenotype. We also found that despite targeted ablation of ST6Gal1, no change in IgG sialylation was apparent. Together with our prior findings, we can conclude that in mice, neither B cells, the plasma, nor platelets have a substantial role in homeostatic IgG sialylation.
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Affiliation(s)
- Leandre M Glendenning
- Department of Pathology, Case Western Reserve University School of Medicine, 10900 Euclid Avenue, Cleveland, OH 44106-7288, USA
| | - Julie Y Zhou
- Department of Pathology, Case Western Reserve University School of Medicine, 10900 Euclid Avenue, Cleveland, OH 44106-7288, USA
| | - Emily N Kukan
- Department of Pathology, Case Western Reserve University School of Medicine, 10900 Euclid Avenue, Cleveland, OH 44106-7288, USA
| | - Chao Gao
- Harvard Medical School Center for Glycoscience, National Center for Functional Glycomics, Beth Israel Deaconess Medical Center, 330 Brookline Avenue, Boston, MA 02215, USA
| | - Richard D Cummings
- Harvard Medical School Center for Glycoscience, National Center for Functional Glycomics, Beth Israel Deaconess Medical Center, 330 Brookline Avenue, Boston, MA 02215, USA
| | - Smita Joshi
- Department of Molecular and Cellular Biochemistry, University of Kentucky, 741 S Limestone Street, Lexington, KY 40536-0509, USA
| | - Sidney W Whiteheart
- Department of Molecular and Cellular Biochemistry, University of Kentucky, 741 S Limestone Street, Lexington, KY 40536-0509, USA
| | - Brian A Cobb
- Department of Pathology, Case Western Reserve University School of Medicine, 10900 Euclid Avenue, Cleveland, OH 44106-7288, USA
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9
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Blažetić S, Krajina V, Labak I, Viljetić B, Pavić V, Ivić V, Balog M, Schnaar RL, Heffer M. Sialyltransferase Mutations Alter the Expression of Calcium-Binding Interneurons in Mice Neocortex, Hippocampus and Striatum. Int J Mol Sci 2023; 24:17218. [PMID: 38139047 PMCID: PMC10743413 DOI: 10.3390/ijms242417218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 11/30/2023] [Accepted: 12/04/2023] [Indexed: 12/24/2023] Open
Abstract
Gangliosides are major glycans on vertebrate nerve cells, and their metabolic disruption results in congenital disorders with marked cognitive and motor deficits. The sialyltransferase gene St3gal2 is responsible for terminal sialylation of two prominent brain gangliosides in mammals, GD1a and GT1b. In this study, we analyzed the expression of calcium-binding interneurons in primary sensory (somatic, visual, and auditory) and motor areas of the neocortex, hippocampus, and striatum of St3gal2-null mice as well as St3gal3-null and St3gal2/3-double null. Immunohistochemistry with highly specific primary antibodies for GABA, parvalbumin, calretinin, and calbindin were used for interneuron detection. St3gal2-null mice had decreased expression of all three analyzed types of calcium-binding interneurons in all analyzed regions of the neocortex. These results implicate gangliosides GD1a and GT1b in the process of interneuron migration and maturation.
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Affiliation(s)
- Senka Blažetić
- Department of Biology, Josip Juraj Strossmayer University of Osijek, Ulica cara Hadrijana 8A, 31000 Osijek, Croatia; (S.B.); (V.P.)
| | - Vinko Krajina
- Department of Medical Biology, School of Medicine, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia; (V.K.); (V.I.); (M.B.); (M.H.)
| | - Irena Labak
- Department of Biology, Josip Juraj Strossmayer University of Osijek, Ulica cara Hadrijana 8A, 31000 Osijek, Croatia; (S.B.); (V.P.)
| | - Barbara Viljetić
- Department of Chemistry, Biochemistry and Clinical Chemistry, School of Medicine, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia;
| | - Valentina Pavić
- Department of Biology, Josip Juraj Strossmayer University of Osijek, Ulica cara Hadrijana 8A, 31000 Osijek, Croatia; (S.B.); (V.P.)
| | - Vedrana Ivić
- Department of Medical Biology, School of Medicine, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia; (V.K.); (V.I.); (M.B.); (M.H.)
| | - Marta Balog
- Department of Medical Biology, School of Medicine, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia; (V.K.); (V.I.); (M.B.); (M.H.)
| | - Ronald L. Schnaar
- Department of Pharmacology and Neuroscience, The Johns Hopkins School of Medicine, Baltimore, MD 21205, USA;
| | - Marija Heffer
- Department of Medical Biology, School of Medicine, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia; (V.K.); (V.I.); (M.B.); (M.H.)
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10
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Dookwah M, Wagner SK, Ishihara M, Yu SH, Ulrichs H, Kulik MJ, Zeltner N, Dalton S, Strauss KA, Aoki K, Steet R, Tiemeyer M. Neural-specific alterations in glycosphingolipid biosynthesis and cell signaling associated with two human ganglioside GM3 synthase deficiency variants. Hum Mol Genet 2023; 32:3323-3341. [PMID: 37676252 PMCID: PMC10695682 DOI: 10.1093/hmg/ddad146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 08/13/2023] [Accepted: 08/29/2023] [Indexed: 09/08/2023] Open
Abstract
GM3 Synthase Deficiency (GM3SD) is a neurodevelopmental disorder resulting from pathogenic variants in the ST3GAL5 gene, which encodes GM3 synthase, a glycosphingolipid (GSL)-specific sialyltransferase. This enzyme adds a sialic acid to the terminal galactose of lactosylceramide (LacCer) to produce the monosialylated ganglioside GM3. In turn, GM3 is extended by other glycosyltransferases to generate nearly all the complex gangliosides enriched in neural tissue. Pathogenic mechanisms underlying the neural phenotypes associated with GM3SD are unknown. To explore how loss of GM3 impacts neural-specific glycolipid glycosylation and cell signaling, GM3SD patient fibroblasts bearing one of two different ST3GAL5 variants were reprogrammed to induced pluripotent stem cells (iPSCs) and then differentiated to neural crest cells (NCCs). GM3 and GM3-derived gangliosides were undetectable in cells carrying either variant, while LacCer precursor levels were elevated compared to wildtype (WT). NCCs of both variants synthesized elevated levels of neutral lacto- and globo-series, as well as minor alternatively sialylated GSLs compared to WT. Ceramide profiles were also shifted in GM3SD variant cells. Altered GSL profiles in GM3SD cells were accompanied by dynamic changes in the cell surface proteome, protein O-GlcNAcylation, and receptor tyrosine kinase abundance. GM3SD cells also exhibited increased apoptosis and sensitivity to erlotinib-induced inhibition of epidermal growth factor receptor signaling. Pharmacologic inhibition of O-GlcNAcase rescued baseline and erlotinib-induced apoptosis. Collectively, these findings indicate aberrant cell signaling during differentiation of GM3SD iPSCs and also underscore the challenge of distinguishing between variant effect and genetic background effect on specific phenotypic consequences.
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Affiliation(s)
- Michelle Dookwah
- Complex Carbohydrate Research Center, University of Georgia, 315 Riverbend Road, Athens, GA 30602, United States
| | - Shannon K Wagner
- Complex Carbohydrate Research Center, University of Georgia, 315 Riverbend Road, Athens, GA 30602, United States
| | - Mayumi Ishihara
- Complex Carbohydrate Research Center, University of Georgia, 315 Riverbend Road, Athens, GA 30602, United States
| | - Seok-Ho Yu
- Greenwood Genetic Center, 106 Gregor Mendel Circle, Greenwood, SC 29646, United States
| | - Heidi Ulrichs
- Center for Molecular Medicine, University of Georgia, 325 Riverbend Road, Athens, GA 30602, United States
| | - Michael J Kulik
- Center for Molecular Medicine, University of Georgia, 325 Riverbend Road, Athens, GA 30602, United States
| | - Nadja Zeltner
- Center for Molecular Medicine, University of Georgia, 325 Riverbend Road, Athens, GA 30602, United States
| | - Stephen Dalton
- Center for Molecular Medicine, University of Georgia, 325 Riverbend Road, Athens, GA 30602, United States
| | - Kevin A Strauss
- Clinic for Special Children, 535 Bunker Hill Road, Strasburg, PA 17579, United States
| | - Kazuhiro Aoki
- Complex Carbohydrate Research Center, University of Georgia, 315 Riverbend Road, Athens, GA 30602, United States
| | - Richard Steet
- Greenwood Genetic Center, 106 Gregor Mendel Circle, Greenwood, SC 29646, United States
| | - Michael Tiemeyer
- Complex Carbohydrate Research Center, University of Georgia, 315 Riverbend Road, Athens, GA 30602, United States
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11
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Schelch S, Eibinger M, Zuson J, Kuballa J, Nidetzky B. Modular bioengineering of whole-cell catalysis for sialo-oligosaccharide production: coordinated co-expression of CMP-sialic acid synthetase and sialyltransferase. Microb Cell Fact 2023; 22:241. [PMID: 38012629 PMCID: PMC10683312 DOI: 10.1186/s12934-023-02249-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Accepted: 11/12/2023] [Indexed: 11/29/2023] Open
Abstract
BACKGROUND In whole-cell bio-catalysis, the biosystems engineering paradigm shifts from the global reconfiguration of cellular metabolism as in fermentation to a more focused, and more easily modularized, optimization of comparably short cascade reactions. Human milk oligosaccharides (HMO) constitute an important field for the synthetic application of cascade bio-catalysis in resting or non-living cells. Here, we analyzed the central catalytic module for synthesis of HMO-type sialo-oligosaccharides, comprised of CMP-sialic acid synthetase (CSS) and sialyltransferase (SiaT), with the specific aim of coordinated enzyme co-expression in E. coli for reaction flux optimization in whole cell conversions producing 3'-sialyllactose (3SL). RESULTS Difference in enzyme specific activity (CSS from Neisseria meningitidis: 36 U/mg; α2,3-SiaT from Pasteurella dagmatis: 5.7 U/mg) was compensated by differential protein co-expression from tailored plasmid constructs, giving balance between the individual activities at a high level of both (α2,3-SiaT: 9.4 × 102 U/g cell dry mass; CSS: 3.4 × 102 U/g cell dry mass). Finally, plasmid selection was guided by kinetic modeling of the coupled CSS-SiaT reactions in combination with comprehensive analytical tracking of the multistep conversion (lactose, N-acetyl neuraminic acid (Neu5Ac), cytidine 5'-triphosphate; each up to 100 mM). The half-life of SiaT in permeabilized cells (≤ 4 h) determined the efficiency of 3SL production at 37 °C. Reaction at 25 °C gave 3SL (40 ± 4 g/L) in ∼ 70% yield within 3 h, reaching a cell dry mass-specific productivity of ∼ 3 g/(g h) and avoiding intermediary CMP-Neu5Ac accumulation. CONCLUSIONS Collectively, balanced co-expression of CSS and SiaT yields an efficient (high-flux) sialylation module to support flexible development of E. coli whole-cell catalysts for sialo-oligosaccharide production.
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Affiliation(s)
- Sabine Schelch
- Austrian Centre of Industrial Biotechnology, Krenngasse 37, 8010, Graz, Austria
- Institute of Biotechnology and Biochemical Engineering, Graz University of Technology, NAWI Graz, Petersgasse 12, 8010, Graz, Austria
| | - Manuel Eibinger
- Institute of Biotechnology and Biochemical Engineering, Graz University of Technology, NAWI Graz, Petersgasse 12, 8010, Graz, Austria
| | - Jasmin Zuson
- Austrian Centre of Industrial Biotechnology, Krenngasse 37, 8010, Graz, Austria
- Institute of Biotechnology and Biochemical Engineering, Graz University of Technology, NAWI Graz, Petersgasse 12, 8010, Graz, Austria
| | - Jürgen Kuballa
- GALAB Laboratories GmbH, Am Schleusengraben 7, 21029, Hamburg, Germany
| | - Bernd Nidetzky
- Austrian Centre of Industrial Biotechnology, Krenngasse 37, 8010, Graz, Austria.
- Institute of Biotechnology and Biochemical Engineering, Graz University of Technology, NAWI Graz, Petersgasse 12, 8010, Graz, Austria.
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12
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Babulic JL, Kofsky JM, Boddington ME, Kim Y, Leblanc EV, Cook MG, Garnier CR, Emberley-Korkmaz S, Colpitts CC, Capicciotti CJ. One-Step Selective Labeling of Native Cell Surface Sialoglycans by Exogenous α2,8-Sialylation. ACS Chem Biol 2023; 18:2418-2429. [PMID: 37934063 DOI: 10.1021/acschembio.3c00475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2023]
Abstract
Exo-enzymatic glycan labeling strategies have emerged as versatile tools for efficient and selective installation of terminal glyco-motifs onto live cell surfaces. Through employing specific enzymes and nucleotide-sugar probes, cells can be equipped with defined glyco-epitopes for modulating cell function or selective visualization and enrichment of glycoconjugates. Here, we identifyCampylobacter jejunisialyltransferase Cst-II I53S as a tool for cell surface glycan modification, expanding the exo-enzymatic labeling toolkit to include installation of α2,8-disialyl epitopes. Labeling with Cst-II was achieved with biotin- and azide-tagged CMP-Neu5Ac derivatives on a model glycoprotein and native sialylated cell surface glycans across a panel of cell lines. The introduction of modified Neu5Ac derivatives onto cells by Cst-II was also retained on the surface for 6 h. By examining the specificity of Cst-II on cell surfaces, it was revealed that the α2,8-sialyltransferase primarily labeled N-glycans, with O-glycans labeled to a lesser extent, and there was an apparent preference for α2,3-linked sialosides on cells. This approach thus broadens the scope of tools for selective exo-enzymatic labeling of native sialylated glycans and is highly amenable for the construction of cell-based arrays.
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Affiliation(s)
- Jonathan L Babulic
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston K7L 3N6, Canada
| | - Joshua M Kofsky
- Department of Chemistry, Queen's University, Kingston K7L 3N6, Canada
| | - Marie E Boddington
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston K7L 3N6, Canada
| | - Youjin Kim
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston K7L 3N6, Canada
| | - Emmanuelle V Leblanc
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston K7L 3N6, Canada
| | - Madeleine G Cook
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston K7L 3N6, Canada
| | - Cole R Garnier
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston K7L 3N6, Canada
| | - Sophie Emberley-Korkmaz
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston K7L 3N6, Canada
| | - Che C Colpitts
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston K7L 3N6, Canada
| | - Chantelle J Capicciotti
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston K7L 3N6, Canada
- Department of Chemistry, Queen's University, Kingston K7L 3N6, Canada
- Department of Surgery, Queen's University, Kingston K7L 3N6, Canada
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13
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Jones RB, Silva AD, Ankenbauer KE, Britain CM, Chakraborty A, Brown JA, Ballinger SW, Bellis SL. Role of the ST6GAL1 sialyltransferase in regulating ovarian cancer cell metabolism. Glycobiology 2023; 33:626-636. [PMID: 37364046 PMCID: PMC10560082 DOI: 10.1093/glycob/cwad051] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 06/16/2023] [Accepted: 06/19/2023] [Indexed: 06/28/2023] Open
Abstract
The ST6GAL1 sialyltransferase, which adds α2-6-linked sialic acids to N-glycosylated proteins, is upregulated in many malignancies including ovarian cancer. Through its activity in sialylating select surface receptors, ST6GAL1 modulates intracellular signaling to regulate tumor cell phenotype. ST6GAL1 has previously been shown to act as a survival factor that protects cancer cells from cytotoxic stressors such as hypoxia. In the present study, we investigated a role for ST6GAL1 in tumor cell metabolism. ST6GAL1 was overexpressed (OE) in OV4 ovarian cancer cells, which have low endogenous ST6GAL1, or knocked-down (KD) in ID8 ovarian cancer cells, which have high endogenous ST6GAL1. OV4 and ID8 cells with modulated ST6GAL1 expression were grown under normoxic or hypoxic conditions, and metabolism was assessed using Seahorse technology. Results showed that cells with high ST6GAL1 expression maintained a higher rate of oxidative metabolism than control cells following treatment with the hypoxia mimetic, desferrioxamine (DFO). This enrichment was not due to an increase in mitochondrial number. Glycolytic metabolism was also increased in OV4 and ID8 cells with high ST6GAL1 expression, and these cells displayed greater activity of the glycolytic enzymes, hexokinase and phosphofructokinase. Metabolism maps were generated from the combined Seahorse data, which suggested that ST6GAL1 functions to enhance the overall metabolism of tumor cells. Finally, we determined that OV4 and ID8 cells with high ST6GAL1 expression were more invasive under conditions of hypoxia. Collectively, these results highlight the importance of sialylation in regulating the metabolic phenotype of ovarian cancer cells.
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Affiliation(s)
- Robert B Jones
- Department of Cell, Developmental and Integrative Biology, University of Alabama at Birmingham, Birmingham, AL 35298, United States
| | - Austin D Silva
- Department of Cell, Developmental and Integrative Biology, University of Alabama at Birmingham, Birmingham, AL 35298, United States
| | - Katherine E Ankenbauer
- Department of Cell, Developmental and Integrative Biology, University of Alabama at Birmingham, Birmingham, AL 35298, United States
| | - Colleen M Britain
- Department of Cell, Developmental and Integrative Biology, University of Alabama at Birmingham, Birmingham, AL 35298, United States
| | - Asmi Chakraborty
- Department of Cell, Developmental and Integrative Biology, University of Alabama at Birmingham, Birmingham, AL 35298, United States
| | - Jamelle A Brown
- Department of Pathology, University of Alabama at Birmingham, Birmingham, AL 35298, United States
| | - Scott W Ballinger
- Department of Pathology, University of Alabama at Birmingham, Birmingham, AL 35298, United States
| | - Susan L Bellis
- Department of Cell, Developmental and Integrative Biology, University of Alabama at Birmingham, Birmingham, AL 35298, United States
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14
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Rivollier P, Samain E, Armand S, Jeacomine I, Richard E, Fort S. Synthesis of Neuraminidase-Resistant Sialyllactose Mimetics from N-Acyl Mannosamines using Metabolically Engineered Escherichia coli. Chemistry 2023; 29:e202301555. [PMID: 37294058 DOI: 10.1002/chem.202301555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 06/07/2023] [Accepted: 06/09/2023] [Indexed: 06/10/2023]
Abstract
Herein, we describe the efficient gram-scale synthesis of α2,3- and α2,6-sialyllactose oligosaccharides as well as mimetics from N-acyl mannosamines and lactose in metabolically engineered bacterial cells grown at high cell density. We designed new Escherichia coli strains co-expressing sialic acid synthase and N-acylneuraminate cytidylyltransferase from Campylobacter jejuni together with the α2,3-sialyltransferase from Neisseria meningitidis or the α2,6-sialyltransferase from Photobacterium sp. JT-ISH-224. Using their mannose transporter, these new strains actively internalized N-acetylmannosamine (ManNAc) and its N-propanoyl (N-Prop), N-butanoyl (N-But) and N-phenylacetyl (N-PhAc) analogs and converted them into the corresponding sialylated oligosaccharides, with overall yields between 10 % and 39 % (200-700 mg.L-1 of culture). The three α2,6-sialyllactose analogs showed similar binding affinity for Sambucus nigra SNA-I lectin as for the natural oligosaccharide. They also proved to be stable competitive inhibitors of Vibrio cholerae neuraminidase. These N-acyl sialosides therefore hold promise for the development of anti-adhesion therapy against influenza viral infections.
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Affiliation(s)
- Paul Rivollier
- Univ. Grenoble Alpes, CNRS, CERMAV, 38000, Grenoble, France
| | - Eric Samain
- Univ. Grenoble Alpes, CNRS, CERMAV, 38000, Grenoble, France
| | - Sylvie Armand
- Univ. Grenoble Alpes, CNRS, CERMAV, 38000, Grenoble, France
| | | | | | - Sébastien Fort
- Univ. Grenoble Alpes, CNRS, CERMAV, 38000, Grenoble, France
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15
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Pilgrim AA, Jonus HC, Ho A, Cole AC, Shim J, Goldsmith KC. The yes-associated protein (YAP) is associated with resistance to anti-GD2 immunotherapy in neuroblastoma through downregulation of ST8SIA1. Oncoimmunology 2023; 12:2240678. [PMID: 37554309 PMCID: PMC10405770 DOI: 10.1080/2162402x.2023.2240678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Revised: 07/21/2023] [Accepted: 07/21/2023] [Indexed: 08/10/2023] Open
Abstract
Pediatric patients with high-risk neuroblastoma often relapse with chemotherapy-resistant, incurable disease. Relapsed neuroblastomas harbor chemo-resistant mesenchymal tumor cells and increased expression/activity of the transcriptional co-regulator, the Yes-Associated Protein (YAP). Patients with relapsed neuroblastoma are often treated with immunotherapy such as the anti-GD2 antibody, dinutuximab, in combination with chemotherapy. We have previously shown that YAP mediates both chemotherapy and MEK inhibitor resistance in relapsed RAS mutated neuroblastoma and so posited that YAP might also be involved in anti-GD2 antibody resistance. We now show that YAP genetic inhibition significantly enhances sensitivity of mesenchymal neuroblastomas to dinutuximab and gamma delta (γδ) T cells both in vitro and in vivo. Mechanistically, YAP inhibition induces increased GD2 cell surface expression through upregulation of ST8SIA1, the gene encoding GD3 synthase and the rate-limiting enzyme in GD2 biosynthesis. The mechanism of ST8SIA1 suppression by YAP is independent of PRRX1 expression, a mesenchymal master transcription factor, suggesting YAP may be the downstream effector of mesenchymal GD2 resistance. These results therefore identify YAP as a therapeutic target to augment GD2 immunotherapy responses in patients with neuroblastoma.
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Affiliation(s)
- Adeiye A. Pilgrim
- Department of Pediatrics, Emory University School of Medicine, Atlanta, GA, USA
| | - Hunter C. Jonus
- Department of Pediatrics, Emory University School of Medicine, Atlanta, GA, USA
| | - Andrew Ho
- Department of Pediatrics, Emory University School of Medicine, Atlanta, GA, USA
| | - Anna C. Cole
- Division of Surgical Oncology, Department of Surgery, Emory University, Atlanta, GA, USA
- Department of Microbiology and Immunology, Winship Cancer Institute, Emory University, Atlanta, GA, USA
| | - Jenny Shim
- Department of Pediatrics, Emory University School of Medicine, Atlanta, GA, USA
- Aflac Cancer and Blood Disorders Center, The Children’s Healthcare of Atlanta, Atlanta, Georgia
| | - Kelly C. Goldsmith
- Department of Pediatrics, Emory University School of Medicine, Atlanta, GA, USA
- Aflac Cancer and Blood Disorders Center, The Children’s Healthcare of Atlanta, Atlanta, Georgia
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16
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Harduin-Lepers A. The vertebrate sialylation machinery: structure-function and molecular evolution of GT-29 sialyltransferases. Glycoconj J 2023; 40:473-492. [PMID: 37247156 PMCID: PMC10225777 DOI: 10.1007/s10719-023-10123-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Revised: 03/09/2023] [Accepted: 05/10/2023] [Indexed: 05/30/2023]
Abstract
Every eukaryotic cell is covered with a thick layer of complex carbohydrates with essential roles in their social life. In Deuterostoma, sialic acids present at the outermost positions of glycans of glycoconjugates are known to be key players in cellular interactions including host-pathogen interactions. Their negative charge and hydrophilic properties enable their roles in various normal and pathological states and their expression is altered in many diseases including cancers. Sialylation of glycoproteins and glycolipids is orchestrated by the regulated expression of twenty sialyltransferases in human tissues with distinct enzymatic characteristics and preferences for substrates and linkages formed. However, still very little is known on the functional organization of sialyltransferases in the Golgi apparatus and how the sialylation machinery is finely regulated to provide the ad hoc sialome to the cell. This review summarizes current knowledge on sialyltransferases, their structure-function relationships, molecular evolution, and their implications in human biology.
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Affiliation(s)
- Anne Harduin-Lepers
- Univ. Lille, CNRS, UMR 8576 - UGSF - Unité de Glycobiologie Structurale et Fonctionnelle, F-59000, Lille, France.
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17
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Fuseya S, Izumi H, Hamano A, Murakami Y, Suzuki R, Koiwai R, Hayashi T, Kuno A, Takahashi S, Kudo T. Reduction in disialyl-T antigen levels in mice deficient for both St6galnac3 and St6galnac4 results in blood filling of lymph nodes. Sci Rep 2023; 13:10582. [PMID: 37386100 PMCID: PMC10310836 DOI: 10.1038/s41598-023-37363-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 06/20/2023] [Indexed: 07/01/2023] Open
Abstract
Sialic acid (SA) is present at the terminal ends of carbohydrate chains in glycoproteins and glycolipids and is involved in various biological phenomena. The biological function of the disialyl-T (SAα2-3Galβ1-3(SAα2-6)GalNAcα1-O-Ser/Thr) structure is largely unknown. To elucidate the role of disialyl-T structure and determine the key enzyme from the N-acetylgalactosaminide α2,6-sialyltransferase (St6galnac) family involved in its in vivo synthesis, we generated St6galnac3- and St6galnac4-deficient mice. Both single-knockout mice developed normally without any prominent phenotypic abnormalities. However, the St6galnac3::St6galnact4 double knockout (DKO) mice showed spontaneous hemorrhage of the lymph nodes (LN). To identify the cause of bleeding in the LN, we examined podoplanin, which modifies the disialyl-T structures. The protein expression of podoplanin in the LN of DKO mice was similar to that in wild-type mice. However, the reactivity of MALII lectin, which recognizes disialyl-T, in podoplanin immunoprecipitated from DKO LN was completely abolished. Moreover, the expression of vascular endothelial cadherin was reduced on the cell surface of high endothelial venule (HEV) in the LN, suggesting that hemorrhage was caused by the structural disruption of HEV. These results suggest that podoplanin possesses disialyl-T structure in mice LN and that both St6galnac3 and St6galnac4 are required for disialyl-T synthesis.
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Affiliation(s)
- Sayaka Fuseya
- Laboratory Animal Resource Center in Transborder Medical Research Center, and Department of Anatomy and Embryology, Institute of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8575, Japan
- Cellular and Molecular Biotechnology Research Institute, National Institute of Advanced Industrial Science and Technology, Ibaraki, 305-8565, Japan
| | - Hiroyuki Izumi
- Laboratory Animal Resource Center in Transborder Medical Research Center, and Department of Anatomy and Embryology, Institute of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8575, Japan
- Graduate School of Comprehensive Human Sciences, University of Tsukuba, Ibaraki, 305-8575, Japan
| | - Ayane Hamano
- Laboratory Animal Resource Center in Transborder Medical Research Center, and Department of Anatomy and Embryology, Institute of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8575, Japan
| | - Yuka Murakami
- Laboratory Animal Resource Center in Transborder Medical Research Center, and Department of Anatomy and Embryology, Institute of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8575, Japan
- School of Integrative and Global Majors, University of Tsukuba, Ibaraki, 305-8575, Japan
| | - Riku Suzuki
- Laboratory Animal Resource Center in Transborder Medical Research Center, and Department of Anatomy and Embryology, Institute of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8575, Japan
| | - Rikako Koiwai
- Laboratory Animal Resource Center in Transborder Medical Research Center, and Department of Anatomy and Embryology, Institute of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8575, Japan
| | - Takuto Hayashi
- Laboratory Animal Resource Center in Transborder Medical Research Center, and Department of Anatomy and Embryology, Institute of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8575, Japan
| | - Atsushi Kuno
- Cellular and Molecular Biotechnology Research Institute, National Institute of Advanced Industrial Science and Technology, Ibaraki, 305-8565, Japan
| | - Satoru Takahashi
- Laboratory Animal Resource Center in Transborder Medical Research Center, and Department of Anatomy and Embryology, Institute of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8575, Japan.
| | - Takashi Kudo
- Laboratory Animal Resource Center in Transborder Medical Research Center, and Department of Anatomy and Embryology, Institute of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8575, Japan.
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18
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Shih PC, Chen HP, Hsu CC, Lin CH, Ko CY, Hsueh CW, Huang CY, Chu TH, Wu CC, Ho YC, Nguyen NUN, Huang SC, Fang CC, Tzou SJ, Wu YJ, Chen TY, Chang CF, Lee YK. Long-term DEHP/MEHP exposure promotes colorectal cancer stemness associated with glycosylation alterations. Environ Pollut 2023; 327:121476. [PMID: 36997141 DOI: 10.1016/j.envpol.2023.121476] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 03/17/2023] [Accepted: 03/19/2023] [Indexed: 06/19/2023]
Abstract
Plasticizers are considered as environmental pollution released from medical devices and increased potential oncogenic risks in clinical therapy. Our previous studies have shown that long-term exposure to di-ethylhexyl phthalate (DEHP)/mono-ethylhexyl phthalate (MEHP) promotes chemotherapeutic drug resistance in colorectal cancer. In this study, we investigated the alteration of glycosylation in colorectal cancer following long-term plasticizers exposure. First, we determined the profiles of cell surface N-glycomes by using mass spectrometry and found out the alterations of α2,8-linkages glycans. Next, we analyzed the correlation between serum DEHP/MEHP levels and ST8SIA6 expression from matched tissues in total 110 colorectal cancer patients. Moreover, clinical specimens and TCGA database were used to analyze the expression of ST8SIA6 in advanced stage of cancer. Finally, we showed that ST8SIA6 regulated stemness in vitro and in vivo. Our results revealed long-term DEHP/MEHP exposure significantly caused cancer patients with poorer survival outcome and attenuated the expression of ST8SIA6 in cancer cells and tissue samples. As expected, silencing of ST8SIA6 promoted cancer stemness and tumorigenicity by upregulating stemness-associated proteins. In addition, the cell viability assay showed enhanced drug resistance in ST8SIA6 silencing cells treated with irinotecan. Besides, ST8SIA6 was downregulated in the advanced stage and positively correlated with tumor recurrence in colorectal cancer. Our results imply that ST8SIA6 potentially plays an important role in oncogenic effects with long-term phthalates exposure.
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Affiliation(s)
- Pei-Chun Shih
- Institute of Basic Medical Science, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan; Department of Medical Laboratory Science and Biotechnology, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan
| | - Hsin-Pao Chen
- Division of Colon and Rectal Surgery, Department of Surgery, E-DA Hospital, I-Shou University, Kaohsiung 82445, Taiwan; School of Medicine, College of Medicine, I-Shou University, Kaohsiung 82445, Taiwan
| | - Ching-Cheng Hsu
- Institute of Basic Medical Science, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan; Department of Medical Laboratory Science and Biotechnology, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan; Department of Internal Medicine, Division of Cardiology, The University of Texas Southwestern Medical Center, Dallas TX 75390, USA
| | - Chung-Hsien Lin
- Institute of Basic Medical Science, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan; Department of Medical Laboratory Science and Biotechnology, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan
| | - Chou-Yuan Ko
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Kaohsiung Armed Forces General Hospital, Kaohsiung 80284, Taiwan; Institute of Medical Science and Technology, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
| | - Chao-Wen Hsueh
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Kaohsiung Armed Forces General Hospital, Kaohsiung 80284, Taiwan; Institute of Medical Science and Technology, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
| | - Cheng-Yi Huang
- Institute of Medical Science and Technology, National Sun Yat-sen University, Kaohsiung 80424, Taiwan; Department of Pathology, Kaohsiung Armed Forces General Hospital, Kaohsiung 80284, Taiwan
| | - Tian-Huei Chu
- Institute of Medical Science and Technology, National Sun Yat-sen University, Kaohsiung 80424, Taiwan; Medical Laboratory, Medical Education and Research Center, Kaohsiung Armed Forces General Hospital, Kaohsiung 80284, Taiwan
| | - Cheng-Chun Wu
- School of Medicine, College of Medicine, I-Shou University, Kaohsiung 82445, Taiwan
| | - Yu-Cheng Ho
- School of Medicine, College of Medicine, I-Shou University, Kaohsiung 82445, Taiwan
| | - Ngoc Uyen Nhi Nguyen
- Department of Internal Medicine, Division of Cardiology, The University of Texas Southwestern Medical Center, Dallas TX 75390, USA
| | - Shih-Chung Huang
- Institute of Medical Science and Technology, National Sun Yat-sen University, Kaohsiung 80424, Taiwan; Division of Cardiology, Department of Medicine, Kaohsiung Armed Forces General Hospital, Kaohsiung 80284, Taiwan; Medical Laboratory, Medical Education and Research Center, Kaohsiung Armed Forces General Hospital, Kaohsiung 80284, Taiwan
| | | | - Shiow-Jyu Tzou
- Institute of Medical Science and Technology, National Sun Yat-sen University, Kaohsiung 80424, Taiwan; Department of Nursing, Kaohsiung Armed Forces General Hospital, Kaohsiung 80284, Taiwan; Medical Laboratory, Medical Education and Research Center, Kaohsiung Armed Forces General Hospital, Kaohsiung 80284, Taiwan
| | - Yueh-Jung Wu
- Division of Colorectal Surgery, Department of Surgery, Kaohsiung Armed Forces General Hospital, Kaohsiung 80284, Taiwan
| | - Tung-Yuan Chen
- Division of Colorectal Surgery, Department of Surgery, Kaohsiung Armed Forces General Hospital, Kaohsiung 80284, Taiwan
| | - Chuan-Fa Chang
- Institute of Basic Medical Science, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan; Department of Medical Laboratory Science and Biotechnology, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan
| | - Yung-Kuo Lee
- Institute of Medical Science and Technology, National Sun Yat-sen University, Kaohsiung 80424, Taiwan; Medical Laboratory, Medical Education and Research Center, Kaohsiung Armed Forces General Hospital, Kaohsiung 80284, Taiwan.
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19
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Yang H, Brown RH, Wang D, Strauss KA, Gao G. Rescue of GM3 synthase deficiency by spatially controlled, rAAV-mediated ST3GAL5 delivery. JCI Insight 2023; 8:e168688. [PMID: 37014712 PMCID: PMC10243808 DOI: 10.1172/jci.insight.168688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Accepted: 03/22/2023] [Indexed: 04/05/2023] Open
Abstract
GM3 synthase deficiency (GM3SD) is an infantile-onset epileptic encephalopathy syndrome caused by biallelic loss-of-function mutations in ST3GAL5. Loss of ST3GAL5 activity in humans results in systemic ganglioside deficiency and severe neurological impairment. No disease-modifying treatment is currently available. Certain recombinant adeno-associated viruses (rAAVs) can cross the blood-brain barrier to induce widespread, long-term gene expression in the CNS and represent a promising therapeutic strategy. Here, we show that a first-generation rAAV-ST3GAL5 replacement vector using a ubiquitous promoter restored tissue ST3GAL5 expression and normalized cerebral gangliosides in patient-derived induced pluripotent stem cell neurons and brain tissue from St3gal5-KO mice but caused fatal hepatotoxicity when administered systemically. In contrast, a second-generation vector optimized for CNS-restricted ST3GAL5 expression, administered by either the intracerebroventricular or i.v. route at P1, allowed for safe and effective rescue of lethality and behavior impairment in symptomatic GM3SD mice up to a year. These results support further clinical development of ST3GAL5 gene therapy.
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Affiliation(s)
- Huiya Yang
- Horae Gene Therapy Center
- Department of Neurology
- Li Weibo Institute for Rare Diseases Research, and
| | - Robert H. Brown
- Department of Neurology
- Li Weibo Institute for Rare Diseases Research, and
| | - Dan Wang
- Horae Gene Therapy Center
- Li Weibo Institute for Rare Diseases Research, and
- RNA Therapeutics Institute, University of Massachusetts Chan Medical School, Worcester, Massachusetts, USA
| | - Kevin A. Strauss
- Horae Gene Therapy Center
- Clinic for Special Children, Strasburg, Pennsylvania, USA
- Department of Molecular, Cell and Cancer Biology, and
| | - Guangping Gao
- Horae Gene Therapy Center
- Li Weibo Institute for Rare Diseases Research, and
- Department of Microbiology and Physiological Systems, University of Massachusetts Chan Medical School, Worcester, Massachusetts, USA
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20
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Omoto T, Wu D, Maruyama E, Tajima K, Hane M, Sato C, Kitajima K. Forced expression of α2,3-sialyltransferase IV rescues impaired heart development in α2,6-sialyltransferase I-deficient medaka. Biochem Biophys Res Commun 2023; 649:62-70. [PMID: 36745971 DOI: 10.1016/j.bbrc.2023.01.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2022] [Revised: 01/05/2023] [Accepted: 01/05/2023] [Indexed: 01/07/2023]
Abstract
Sialic acids (Sias) are often linked to galactose (Gal) residues by α2,6- and α2,3-linkages in glycans of glycoproteins. Sias are indispensable for vertebrate development, because organisms deficient in some enzymes in the Sia synthetic pathway are lethal during the development. However, it remains unknown if the difference of Siaα2,6Gal or α2,3Gal linkage has a critical meaning. To find a clue to understand significance of the linkage difference at the organism level, medaka was used as a vertebrate model. In embryos, Siaα2,6Gal epitopes recognized by Sambucus nigra lectin (SNA) and Siaα2,3Gal epitopes recognized by Maackia amurensis lectin (MAA) were enriched in the blastodisc and the yolk sphere, respectively. When these lectins were injected in the perivitelline space, SNA, but not MAA, impaired embryo body formation at 1 day post-fertilization (dpf). Most Siaα2,6Gal epitopes occurred on N-glycans owing to their sensitivity to peptide:N-glycanase. Of knockout-medaka (KO) for either of two β-galactoside:α2,6-sialyltransferase genes, ST6Gal I and ST6Gal II, only ST6Gal I-KO showed severe cardiac abnormalities at 7-16 dpf, leading to lethality at 14-18 dpf. Interestingly, however, these cardiac abnormalities of ST6Gal I-KO were rescued not only by forced expression of ST6Gal I, but also by that of ST6Gal II and the β-galactoside:α2,3-sialyltransferase IV gene (ST3Gal IV). Taken together, the Siaα2,6Gal linkage synthesized by ST6Gal I are critical in heart development; however, it can be replaced by the linkages synthesized by ST6Gal II and ST3Gal IV. These data suggest that sialylation itself is more important than its particular linkage for the heart development.
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Affiliation(s)
- Takayuki Omoto
- Bioscience and Biotechnology Center, Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya, 464-8601, Japan
| | - Di Wu
- Bioscience and Biotechnology Center, Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya, 464-8601, Japan; Institute for Glyco-core Research, Nagoya University, Chikusa, Nagoya, 464-8601, Japan
| | - Emi Maruyama
- Bioscience and Biotechnology Center, Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya, 464-8601, Japan
| | - Katsue Tajima
- Bioscience and Biotechnology Center, Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya, 464-8601, Japan
| | - Masaya Hane
- Bioscience and Biotechnology Center, Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya, 464-8601, Japan; Institute for Glyco-core Research, Nagoya University, Chikusa, Nagoya, 464-8601, Japan
| | - Chihiro Sato
- Bioscience and Biotechnology Center, Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya, 464-8601, Japan; Institute for Glyco-core Research, Nagoya University, Chikusa, Nagoya, 464-8601, Japan
| | - Ken Kitajima
- Bioscience and Biotechnology Center, Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya, 464-8601, Japan; Institute for Glyco-core Research, Nagoya University, Chikusa, Nagoya, 464-8601, Japan.
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21
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Kint N, Dubois T, Viollier PH. Stereoisomer-specific reprogramming of a bacterial flagellin sialyltransferase. EMBO J 2023; 42:e112880. [PMID: 36636824 PMCID: PMC9975948 DOI: 10.15252/embj.2022112880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 12/02/2022] [Accepted: 12/16/2022] [Indexed: 01/14/2023] Open
Abstract
Glycosylation of surface structures diversifies cells chemically and physically. Nucleotide-activated sialic acids commonly serve as glycosyl donors, particularly pseudaminic acid (Pse) and its stereoisomer legionaminic acid (Leg), which decorate eubacterial and archaeal surface layers or protein appendages. FlmG, a recently identified protein sialyltransferase, O-glycosylates flagellins, the subunits of the flagellar filament. We show that flagellin glycosylation and motility in Caulobacter crescentus and Brevundimonas subvibrioides is conferred by functionally insulated Pse and Leg biosynthesis pathways, respectively, and by specialized FlmG orthologs. We established a genetic glyco-profiling platform for the classification of Pse or Leg biosynthesis pathways, discovered a signature determinant of eubacterial and archaeal Leg biosynthesis, and validated it by reconstitution experiments in a heterologous host. Finally, by rewiring FlmG glycosylation using chimeras, we defined two modular determinants that govern flagellin glycosyltransferase specificity: a glycosyltransferase domain that either donates Leg or Pse and a specialized flagellin-binding domain that identifies the acceptor.
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Affiliation(s)
- Nicolas Kint
- Department of Microbiology & Molecular Medicine and Geneva Center for Inflammation Research (GCIR), Faculty of MedicineUniversity of GenevaGenèveSwitzerland
| | - Thomas Dubois
- University of Lille, CNRS, INRAE, Centrale Lille, UMR 8207‐UMET‐Unité Matériaux et TransformationsLilleFrance
| | - Patrick H Viollier
- Department of Microbiology & Molecular Medicine and Geneva Center for Inflammation Research (GCIR), Faculty of MedicineUniversity of GenevaGenèveSwitzerland
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22
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Bharathi SS, Zhang BB, Paul E, Zhang Y, Schmidt AV, Fowler B, Wu Y, Tiemeyer M, Inamori KI, Inokuchi JI, Goetzman ES. GM3 synthase deficiency increases brain glucose metabolism in mice. Mol Genet Metab 2022; 137:342-348. [PMID: 36335793 DOI: 10.1016/j.ymgme.2022.10.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 10/24/2022] [Accepted: 10/25/2022] [Indexed: 11/06/2022]
Abstract
GM3 synthase (GM3S) deficiency is a rare neurodevelopmental disorder caused by an inability to synthesize gangliosides, for which there is currently no treatment. Gangliosides are brain-enriched, plasma membrane glycosphingolipids with poorly understood biological functions related to cell adhesion, growth, and receptor-mediated signal transduction. Here, we investigated the effects of GM3S deficiency on metabolism and mitochondrial function in a mouse model. By indirect calorimetry, GM3S knockout mice exhibited increased whole-body respiration and an increased reliance upon carbohydrate as an energy source. 18F-FDG PET confirmed higher brain glucose uptake in knockout mice, and GM3S deficient N41 neuronal cells showed higher glucose utilization in vitro. Brain mitochondria from knockout mice respired at a higher rate on Complex I substrates including pyruvate. This appeared to be due to higher expression of pyruvate dehydrogenase (PDH) and lower phosphorylation of PDH, which would favor pyruvate entry into the mitochondrial TCA cycle. Finally, it was observed that blocking glucose metabolism with the glycolysis inhibitor 2-deoxyglucose reduced seizure intensity in GM3S knockout mice following administration of kainate. In conclusion, GM3S deficiency may be associated with a hypermetabolic phenotype that could promote seizure activity.
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Affiliation(s)
- Sivakama S Bharathi
- Division of Genetic and Genomic Medicine, Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States of America
| | - Bob B Zhang
- Division of Genetic and Genomic Medicine, Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States of America
| | - Eli Paul
- Division of Genetic and Genomic Medicine, Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States of America
| | - Yuxun Zhang
- Division of Genetic and Genomic Medicine, Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States of America
| | - Alexandra V Schmidt
- Division of Genetic and Genomic Medicine, Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States of America
| | - Benjamin Fowler
- Division of Genetic and Genomic Medicine, Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States of America
| | - Yijen Wu
- Department of Developmental Biology, University of Pittsburgh, UPMC Children's Hospital of Pittsburgh, Pittsburgh, PA, United States of America
| | - Michael Tiemeyer
- Complex Carbohydrate Research Center, University of Georgia, Athens, GA, United States of America
| | - Kei-Ichiro Inamori
- Division of Glycopathology, Institute of Molecular Biomembrane and Glycobiology, Tohoku Medical and Pharmaceutical University, Sendai, Miyagi 981-8558, Japan
| | - Jin-Ichi Inokuchi
- Division of Glycopathology, Institute of Molecular Biomembrane and Glycobiology, Tohoku Medical and Pharmaceutical University, Sendai, Miyagi 981-8558, Japan
| | - Eric S Goetzman
- Division of Genetic and Genomic Medicine, Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States of America..
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23
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Glendenning LM, Zhou JY, Reynero KM, Cobb BA. Divergent Golgi trafficking limits B cell-mediated IgG sialylation. J Leukoc Biol 2022; 112:1555-1566. [PMID: 35726710 PMCID: PMC9701147 DOI: 10.1002/jlb.3ma0522-731r] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 05/19/2022] [Indexed: 01/04/2023] Open
Abstract
The degree of α2,6-linked sialylation on IgG glycans is associated with a variety of inflammatory conditions and is thought to drive IgG anti-inflammatory activity. Previous findings revealed that ablation of β-galactoside α2,6-sialyltransferase 1 (ST6Gal1) in B cells failed to alter IgG sialylation in vivo, yet resulted in the loss of B cell surface α2,6 sialylation, suggesting divergent pathways for IgG and cell surface glycoprotein glycosylation and trafficking. Employing both B cell hybridomas and ex vivo murine B cells, we discovered that IgG was poorly sialylated by ST6Gal1 and highly core fucosylated by α1,6-fucosyltransferase 8 (Fut8) in cell culture. In contrast, cell surface glycoproteins on IgG-producing cells showed the opposite pattern by flow cytometry, with high α2,6 sialylation and low α1,6 fucosylation. Paired studies further revealed that ex vivo B cell-produced IgG carried significantly less sialylation compared with IgG isolated from the plasma of matched animals, providing evidence that IgG sialylation increases after release in vivo. Finally, confocal analyses demonstrated that IgG poorly localized to subcellular compartments rich in sialylation and ST6Gal1, and strongly to regions rich in fucosylation and Fut8. These findings support a model in which IgG subcellular trafficking diverges from the canonical secretory pathway by promoting Fut8-mediated core fucosylation and limiting exposure to and modification by ST6Gal1, providing a mechanism for why B cell-expressed ST6Gal1 is dispensable for IgG sialylation in vivo.
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Affiliation(s)
- Leandre M. Glendenning
- Case Western Reserve University School of Medicine, Department of Pathology, Cleveland, OH 44106, USA
| | - Julie Y. Zhou
- Case Western Reserve University School of Medicine, Department of Pathology, Cleveland, OH 44106, USA
| | - Kalob M. Reynero
- Case Western Reserve University School of Medicine, Department of Pathology, Cleveland, OH 44106, USA
| | - Brian A. Cobb
- Case Western Reserve University School of Medicine, Department of Pathology, Cleveland, OH 44106, USA
- To whom correspondence should be sent
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24
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Qiao Y, Wang B, Yan Y, Niu L. Long noncoding RNA ST8SIA6-AS1 promotes cell proliferation and metastasis in triple-negative breast cancer by targeting miR-145-5p/CDCA3 to inactivate the p53/p21 signaling pathway. Environ Toxicol 2022; 37:2398-2411. [PMID: 35730485 DOI: 10.1002/tox.23605] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 05/08/2022] [Accepted: 06/09/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Triple-negative breast cancer (TNBC), the most aggressive subtype of breast cancer, always exhibits a poor prognosis due to high risk of early recurrence and distant metastasis. Long noncoding RNAs (lncRNAs) have been reported as crucial regulators in breast cancer. However, the functions and action mechanisms of lncRNA ST8SIA6-AS1 in TNBC are largely unknown. METHODS Quantitative real-time PCR and western blot assays were used to measure the expression levels of different genes and proteins. Cell proliferation ability was monitored by CCK-8, colony forming and flow cytometry assays. Wound healing and transwell assays were performed to evaluate cell migration and invasion. The regulatory mechanisms of ST8SIA6-AS1 in TNBC were confirmed by dual luciferase reporter and RIP assays. A mouse xenograft model was established to investigate the role of ST8SIA6-AS1 in TNBC tumor growth. RESULTS ST8SIA6-AS1 displayed a higher expression in TNBC cells. Silencing ST8SIA6-AS1 impaired cell proliferation, cell cycle progression, migration, and invasion in vitro, and slowed tumor growth in vivo. Mechanistically, ST8SIA6-AS1 could facilitate the expression of its target CDCA3 (cell division cycle associated protein 3) and inactivate the p53/p21 signaling by inhibiting miR-145-5p. Moreover, miR-145-5p exerted a tumor-suppressive activity by targeting CDCA3. The tumor-suppressive effects induced by ST8SIA6-AS1 knockdown were abated by the down-regulation of miR-145-5p or the up-regulation of CDCA3. CONCLUSION ST8SIA6-AS1 exerts an oncogenic role in TNBC by interacting with miR-145-5p to up-regulate CDCA3 expression and inactivate the p53/p21 signaling, highlighting ST8SIA6-AS1 as a promising molecular target to combat TNBC.
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Affiliation(s)
- Yan Qiao
- Department of Breast Surgery, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Bin Wang
- Department of Breast Surgery, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Yu Yan
- Department of Breast Surgery, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Ligang Niu
- Department of Breast Surgery, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
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25
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Rusiniak ME, Punch PR, Hait NC, Maiti A, Burns RT, Chapla D, Moremen KW, Zhao P, Wells L, Hoffmeister K, Lau JTY. Extracellular ST6GAL1 regulates monocyte-macrophage development and survival. Glycobiology 2022; 32:701-711. [PMID: 35661210 PMCID: PMC9280526 DOI: 10.1093/glycob/cwac032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 05/02/2022] [Accepted: 05/12/2022] [Indexed: 11/14/2022] Open
Abstract
Interaction of immune cells with the systemic environment is necessary for the coordinated development and execution of immune responses. Monocyte-macrophage lineage cells reside at the junction of innate and adaptive immunity. Previously we reported that the sialyltransferase ST6GAL1 in the extracellular milieu modulates B cell development and IgG production, granulocyte production, and attenuates acute airway inflammation to bacterial challenge in mouse models. Here, we report that extracellular ST6GAL1 also elicits profound responses in monocyte-macrophage lineage cells. We show that recombinant ST6GAL1 adheres to subsets of thioglycolate-elicited inflammatory cells in the mouse peritoneum and to cultured human monocyte THP-1 cells. Exposure of the inflammatory cells to recombinant ST6GAL1 elicited wholesale changes in the gene expression profile of primary mouse myeloid cells; most notable was the striking up-regulation of monocyte-macrophage and monocyte-derived dendritic cell development pathway signature genes and transcription factors PU.1, NFκB and their target genes, driving increased monocyte-macrophage population and survival ex vivo. In the cultured human monocyte cells, the essential cell surface receptor of the monocyte-macrophage lineage, the M-CSF receptor (M-CSF-R, Csfr1) was a target of extracellular ST6GAL1 catalytic activity. Extracellular ST6GAL1 activated the M-CSF-R and initiated intracellular signaling events, namely, the nuclear translocation of NFκB subunit p65, and phosphorylation of ERK 1/2 and AKT. The findings implicate extracellular ST6GAL1 in monocyte development by a mechanism initiated at the cell surface and support an emerging paradigm of an extracellular glycan-modifying enzyme as a central regulator coordinating immune hematopoietic cell development and function.
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Affiliation(s)
- Michael E Rusiniak
- Department of Molecular and Cellular Biology, Roswell Park Comprehensive Cancer Center, Elm and Carlton Streets, Buffalo, NY 14263, United States
| | - Patrick R Punch
- Department of Molecular and Cellular Biology, Roswell Park Comprehensive Cancer Center, Elm and Carlton Streets, Buffalo, NY 14263, United States
- Department of Oral Biology, University at Buffalo, Buffalo, NY 14215, United States
| | - Nitai C Hait
- Department of Molecular and Cellular Biology, Roswell Park Comprehensive Cancer Center, Elm and Carlton Streets, Buffalo, NY 14263, United States
- Department of Surgical Oncology, Roswell Park Comprehensive Cancer Center, Elm and Carlton Streets, Buffalo, NY 14263, United States
| | - Aparna Maiti
- Department of Surgical Oncology, Roswell Park Comprehensive Cancer Center, Elm and Carlton Streets, Buffalo, NY 14263, United States
| | - Robert T Burns
- Translational Glycomics Center, Blood Research Institute, 8727 W. Watertown Plank Rd, Milwaukee, WI 53226, United States
| | - Digantkumar Chapla
- Complex Carbohydrate Research Center, University of Georgia, Athens, GA 30602, United States
| | - Kelley W Moremen
- Complex Carbohydrate Research Center, University of Georgia, Athens, GA 30602, United States
| | - Peng Zhao
- Complex Carbohydrate Research Center, University of Georgia, Athens, GA 30602, United States
| | - Lance Wells
- Complex Carbohydrate Research Center, University of Georgia, Athens, GA 30602, United States
| | - Karin Hoffmeister
- Translational Glycomics Center, Blood Research Institute, 8727 W. Watertown Plank Rd, Milwaukee, WI 53226, United States
| | - Joseph T Y Lau
- Department of Molecular and Cellular Biology, Roswell Park Comprehensive Cancer Center, Elm and Carlton Streets, Buffalo, NY 14263, United States
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Inamori KI, Inokuchi JI. Ganglioside GM3 Synthase Deficiency in Mouse Models and Human Patients. Int J Mol Sci 2022; 23:ijms23105368. [PMID: 35628171 PMCID: PMC9141422 DOI: 10.3390/ijms23105368] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 05/08/2022] [Accepted: 05/09/2022] [Indexed: 12/22/2022] Open
Abstract
Gangliosides (glycosphingolipids containing one or more sialic acids) are highly expressed in neural tissues in vertebrates, and four species (GM1a, GD1a, GD1b, GT1b) are predominant in mammalian brains. GM3 is the precursor of each of these four species and is the major ganglioside in many nonneural tissues. GM3 synthase (GM3S), encoded by ST3GAL5 gene in humans, is a sialyltransferase responsible for synthesis of GM3 from its precursor, lactosylceramide. ST3GAL5 mutations cause an autosomal recessive form of severe infantile-onset neurological disease characterized by progressive microcephaly, intellectual disability, dyskinetic movements, blindness, deafness, intractable seizures, and pigment changes. Some of these clinical features are consistently present in patients with ST3GAL5 mutations, whereas others have variable expression. GM3S knockout (KO) mice have deafness and enhanced insulin sensitivity, but otherwise do not display the above-described neurological defects reported in ST3GAL5 patients. The authors present an overview of physiological functions and pathological aspects of gangliosides based on findings from studies of GM3S KO mice and discuss differential phenotypes of GM3S KO mice versus human GM3S-deficiency patients.
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Affiliation(s)
- Kei-ichiro Inamori
- Division of Glycopathology, Institute of Molecular Biomembrane and Glycobiology, Tohoku Medical and Pharmaceutical University, Sendai 981-8558, Miyagi, Japan
- Correspondence: (K.-i.I.); (J.-i.I.)
| | - Jin-ichi Inokuchi
- Division of Glycopathology, Institute of Molecular Biomembrane and Glycobiology, Tohoku Medical and Pharmaceutical University, Sendai 981-8558, Miyagi, Japan
- Forefront Research Center, Graduate School of Science, Osaka University, Toyonaka 560-0043, Osaka, Japan
- Correspondence: (K.-i.I.); (J.-i.I.)
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Rao TC, Beggs RR, Ankenbauer KE, Hwang J, Ma VPY, Salaita K, Bellis SL, Mattheyses AL. ST6Gal-I-mediated sialylation of the epidermal growth factor receptor modulates cell mechanics and enhances invasion. J Biol Chem 2022; 298:101726. [PMID: 35157848 PMCID: PMC8956946 DOI: 10.1016/j.jbc.2022.101726] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 02/02/2022] [Accepted: 02/03/2022] [Indexed: 12/19/2022] Open
Abstract
Heterogeneity within the glycocalyx influences cell adhesion mechanics and signaling. However, the role of specific glycosylation subtypes in influencing cell mechanics via alterations of receptor function remains unexplored. It has been shown that the addition of sialic acid to terminal glycans impacts growth, development, and cancer progression. In addition, the sialyltransferase ST6Gal-I promotes epidermal growth factor receptor (EGFR) activity, and we have shown EGFR is an 'allosteric mechano-organizer' of integrin tension. Here, we investigated the impact of ST6Gal-I on cell mechanics. Using DNA-based tension gauge tether probes of variable thresholds, we found that high ST6Gal-I activity promotes increased integrin forces and spreading in Cos-7 and OVCAR3, OVCAR5, and OV4 cancer cells. Further, employing inhibitors and function-blocking antibodies against β1, β3, and β5 integrins and ST6Gal-I targets EGFR, tumor necrosis factor receptor, and Fas cell surface death receptor, we validated that the observed phenotypes are EGFR-specific. We found that while tension, contractility, and adhesion are extracellular-signal-regulated kinase pathway-dependent, spreading, proliferation, and invasion are phosphoinositide 3-kinase-Akt serine/threonine kinase dependent. Using total internal reflection fluorescence microscopy and flow cytometry, we also show that high ST6Gal-I activity leads to sustained EGFR membrane retention, making it a key regulator of cell mechanics. Our findings suggest a novel sialylation-dependent mechanism orchestrating cellular mechanics and enhancing cell motility via EGFR signaling.
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Affiliation(s)
- Tejeshwar C Rao
- Department of Cell, Developmental, and Integrative Biology, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Reena R Beggs
- Department of Cell, Developmental, and Integrative Biology, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Katherine E Ankenbauer
- Department of Cell, Developmental, and Integrative Biology, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Jihye Hwang
- Department of Cell, Developmental, and Integrative Biology, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | | | - Khalid Salaita
- Department of Chemistry, Emory University, Atlanta, Georgia, USA
| | - Susan L Bellis
- Department of Cell, Developmental, and Integrative Biology, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Alexa L Mattheyses
- Department of Cell, Developmental, and Integrative Biology, University of Alabama at Birmingham, Birmingham, Alabama, USA.
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28
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Yao Y, Kim G, Shafer S, Chen Z, Kubo S, Ji Y, Luo J, Yang W, Perner SP, Kanellopoulou C, Park AY, Jiang P, Li J, Baris S, Aydiner EK, Ertem D, Mulder DJ, Warner N, Griffiths AM, Topf-Olivestone C, Kori M, Werner L, Ouahed J, Field M, Liu C, Schwarz B, Bosio CM, Ganesan S, Song J, Urlaub H, Oellerich T, Malaker SA, Zheng L, Bertozzi CR, Zhang Y, Matthews H, Montgomery W, Shih HY, Jiang J, Jones M, Baras A, Shuldiner A, Gonzaga-Jauregui C, Snapper SB, Muise AM, Shouval DS, Ozen A, Pan KT, Wu C, Lenardo MJ. Mucus sialylation determines intestinal host-commensal homeostasis. Cell 2022; 185:1172-1188.e28. [PMID: 35303419 PMCID: PMC9088855 DOI: 10.1016/j.cell.2022.02.013] [Citation(s) in RCA: 65] [Impact Index Per Article: 32.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 12/18/2021] [Accepted: 02/09/2022] [Indexed: 02/07/2023]
Abstract
Intestinal mucus forms the first line of defense against bacterial invasion while providing nutrition to support microbial symbiosis. How the host controls mucus barrier integrity and commensalism is unclear. We show that terminal sialylation of glycans on intestinal mucus by ST6GALNAC1 (ST6), the dominant sialyltransferase specifically expressed in goblet cells and induced by microbial pathogen-associated molecular patterns, is essential for mucus integrity and protecting against excessive bacterial proteolytic degradation. Glycoproteomic profiling and biochemical analysis of ST6 mutations identified in patients show that decreased sialylation causes defective mucus proteins and congenital inflammatory bowel disease (IBD). Mice harboring a patient ST6 mutation have compromised mucus barriers, dysbiosis, and susceptibility to intestinal inflammation. Based on our understanding of the ST6 regulatory network, we show that treatment with sialylated mucin or a Foxo3 inhibitor can ameliorate IBD.
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Affiliation(s)
- Yikun Yao
- Molecular Development of the Immune System Section, Laboratory of Immune System Biology, and Clinical Genomics Program, NIAID, National Institutes of Health, Bethesda, MD 20892, USA
| | - Girak Kim
- Experimental Immunology Branch, National Cancer Institute, NIH, Bethesda, MD 20892, USA
| | - Samantha Shafer
- Molecular Development of the Immune System Section, Laboratory of Immune System Biology, and Clinical Genomics Program, NIAID, National Institutes of Health, Bethesda, MD 20892, USA
| | - Zuojia Chen
- Experimental Immunology Branch, National Cancer Institute, NIH, Bethesda, MD 20892, USA
| | - Satoshi Kubo
- Molecular Development of the Immune System Section, Laboratory of Immune System Biology, and Clinical Genomics Program, NIAID, National Institutes of Health, Bethesda, MD 20892, USA
| | - Yanlong Ji
- Hematology/Oncology, Department of Medicine II, Johann Wolfgang Goethe University, 60590 Frankfurt am Main, Germany; Frankfurt Cancer Institute, Goethe University, 60596 Frankfurt am Main, Germany; Bioanalytical Mass Spectrometry Group, Max Planck Institute for Multidisciplinary Sciences, 37077 Göttingen, Germany
| | - Jialie Luo
- Experimental Immunology Branch, National Cancer Institute, NIH, Bethesda, MD 20892, USA
| | - Weiming Yang
- Section on Biological Chemistry, National Institute of Dental and Craniofacial Research (NIDCR), NIH, Bethesda, MD 20892, USA
| | - Sebastian P Perner
- Hematology/Oncology, Department of Medicine II, Johann Wolfgang Goethe University, 60590 Frankfurt am Main, Germany; Frankfurt Cancer Institute, Goethe University, 60596 Frankfurt am Main, Germany
| | - Chrysi Kanellopoulou
- Molecular Development of the Immune System Section, Laboratory of Immune System Biology, and Clinical Genomics Program, NIAID, National Institutes of Health, Bethesda, MD 20892, USA
| | - Ann Y Park
- Molecular Development of the Immune System Section, Laboratory of Immune System Biology, and Clinical Genomics Program, NIAID, National Institutes of Health, Bethesda, MD 20892, USA
| | - Ping Jiang
- Molecular Development of the Immune System Section, Laboratory of Immune System Biology, and Clinical Genomics Program, NIAID, National Institutes of Health, Bethesda, MD 20892, USA
| | - Jian Li
- Experimental Immunology Branch, National Cancer Institute, NIH, Bethesda, MD 20892, USA
| | - Safa Baris
- Division of Allergy and Immunology, Department of Pediatrics, School of Medicine, Marmara University, 34722 Istanbul, Turkey; The Isil Berat Barlan Center for Translational Medicine, Marmara University, 34722 Istanbul, Turkey
| | - Elif Karakoc Aydiner
- Division of Allergy and Immunology, Department of Pediatrics, School of Medicine, Marmara University, 34722 Istanbul, Turkey; The Isil Berat Barlan Center for Translational Medicine, Marmara University, 34722 Istanbul, Turkey
| | - Deniz Ertem
- Marmara University School of Medicine, Division of Pediatric Gastroenterology Hepatology and Nutrition, 34854 Istanbul, Turkey
| | - Daniel J Mulder
- Departments of Pediatrics, Medicine, and Biomedical and Molecular Sciences, Queen's University, Kingston, ON K7L 3N6, Canada
| | - Neil Warner
- SickKids Inflammatory Bowel Disease Center and Cell Biology Program, Research Institute, Hospital for Sick Children, Toronto, ON M5G 1X8, Canada
| | - Anne M Griffiths
- SickKids Inflammatory Bowel Disease Center and Cell Biology Program, Research Institute, Hospital for Sick Children, Toronto, ON M5G 1X8, Canada
| | - Chani Topf-Olivestone
- Pediatric Gastroenterology, Kaplan Medical Center, Pasternak St., POB 1, Rehovot 76100, Israel
| | - Michal Kori
- Pediatric Gastroenterology, Kaplan Medical Center, Pasternak St., POB 1, Rehovot 76100, Israel
| | - Lael Werner
- Institute of Gastroenterology, Nutrition and Liver Diseases, Schneider Children's Medical Center of Israel, Petach Tikva 4920235, Israel
| | - Jodie Ouahed
- Division of Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, Boston Children's Hospital, Boston, MA 02115, USA
| | - Michael Field
- Division of Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, Boston Children's Hospital, Boston, MA 02115, USA
| | - Chengyu Liu
- Transgenic Core Facility, National Heart, Lung, and Blood Institute, Bethesda, MD 20892, USA
| | - Benjamin Schwarz
- Immunity to Pulmonary Pathogens Section, Laboratory of Bacteriology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, MT 59840, USA
| | - Catharine M Bosio
- Immunity to Pulmonary Pathogens Section, Laboratory of Bacteriology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, MT 59840, USA
| | - Sundar Ganesan
- Biological Imaging Section, Research Technologies Branch, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Jian Song
- Laboratory of Immune System Biology, National Institute of Allergy and Infectious Diseases (NIAID), Bethesda, MD 20892, USA
| | - Henning Urlaub
- Bioanalytical Mass Spectrometry Group, Max Planck Institute for Multidisciplinary Sciences, 37077 Göttingen, Germany; Institute of Clinical Chemistry, University Medical Center Göttingen, 37075 Göttingen, Germany
| | - Thomas Oellerich
- Hematology/Oncology, Department of Medicine II, Johann Wolfgang Goethe University, 60590 Frankfurt am Main, Germany; Frankfurt Cancer Institute, Goethe University, 60596 Frankfurt am Main, Germany; German Cancer Consortium/German Cancer Research Center, 69120 Heidelberg, Germany
| | - Stacy A Malaker
- Yale University, Department of Chemistry, New Haven, CT 06511, USA
| | - Lixin Zheng
- Molecular Development of the Immune System Section, Laboratory of Immune System Biology, and Clinical Genomics Program, NIAID, National Institutes of Health, Bethesda, MD 20892, USA
| | - Carolyn R Bertozzi
- Department of Chemistry, Stanford University, Stanford, CA 94305, USA; Howard Hughes Medical Institute, Stanford, CA 94305, USA
| | - Yu Zhang
- Laboratory of Clinical Immunology and Microbiology, NIAID, NIH, Bethesda, MD 20892, USA
| | - Helen Matthews
- Laboratory of Clinical Immunology and Microbiology, NIAID, NIH, Bethesda, MD 20892, USA
| | - Will Montgomery
- Neuro-Immune Regulome Unit, National Eye Institute, NIH, Bethesda, MD 20892, USA
| | - Han-Yu Shih
- Neuro-Immune Regulome Unit, National Eye Institute, NIH, Bethesda, MD 20892, USA
| | - Jiansheng Jiang
- Molecular Biology Section, Laboratory of Immune System Biology, NIAID, NIH, Bethesda, MD 20892, USA
| | - Marcus Jones
- Regeneron Genetics Center, 777 Old Saw Mill River Road, Tarrytown, NY 10591, USA
| | - Aris Baras
- Regeneron Genetics Center, 777 Old Saw Mill River Road, Tarrytown, NY 10591, USA
| | - Alan Shuldiner
- Regeneron Genetics Center, 777 Old Saw Mill River Road, Tarrytown, NY 10591, USA
| | - Claudia Gonzaga-Jauregui
- Regeneron Genetics Center, 777 Old Saw Mill River Road, Tarrytown, NY 10591, USA; International Laboratory for Human Genome Research, Laboratorio Internacional de Investigación sobre el Genoma Humano, Universidad Nacional Autónoma de México, Juriquilla, Querétaro 04510, Mexico
| | - Scott B Snapper
- Division of Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, Boston Children's Hospital, Boston, MA 02115, USA
| | - Aleixo M Muise
- SickKids Inflammatory Bowel Disease Center and Cell Biology Program, Research Institute, Hospital for Sick Children, Toronto, ON M5G 1X8, Canada; Department of Pediatrics, IMS, and Biochemistry, University of Toronto, Toronto, ON M5G 1X8, Canada
| | - Dror S Shouval
- Institute of Gastroenterology, Nutrition and Liver Diseases, Schneider Children's Medical Center of Israel, Petach Tikva 4920235, Israel
| | - Ahmet Ozen
- The Isil Berat Barlan Center for Translational Medicine, Marmara University, 34722 Istanbul, Turkey; Marmara University School of Medicine, Division of Pediatric Gastroenterology Hepatology and Nutrition, 34854 Istanbul, Turkey
| | - Kuan-Ting Pan
- Hematology/Oncology, Department of Medicine II, Johann Wolfgang Goethe University, 60590 Frankfurt am Main, Germany; Frankfurt Cancer Institute, Goethe University, 60596 Frankfurt am Main, Germany
| | - Chuan Wu
- Experimental Immunology Branch, National Cancer Institute, NIH, Bethesda, MD 20892, USA.
| | - Michael J Lenardo
- Molecular Development of the Immune System Section, Laboratory of Immune System Biology, and Clinical Genomics Program, NIAID, National Institutes of Health, Bethesda, MD 20892, USA.
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29
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Hatanaka R, Araki E, Hane M, Go S, Wu D, Kitajima K, Sato C. The α2,8-sialyltransferase 6 (St8sia6) localizes in the ER and enhances the anchorage-independent cell growth in cancer. Biochem Biophys Res Commun 2022; 608:52-58. [PMID: 35390672 DOI: 10.1016/j.bbrc.2022.03.146] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 03/27/2022] [Indexed: 01/06/2023]
Abstract
Sialylation, the final stage of post-translational modification of proteins, is achieved in the Golgi apparatus and is related to the malignant phenotype of cancer. Disialylation of ganglioside (GD3) by St8sia1 and polysialylation by St8sia2 and 4 have been shown to be related to malignant phenotypes; however, di/oligosialylation by St8sia6 is still unknown. In this study, we analyzed the malignant phenotype of St8sia6 and found that upregulation of St8sia6 in melanoma B16 cells increased anchorage-independent cell growth, which was not due to sialic acid cleavage by a sialidase. Moreover, unlike other sialyltransferases, St8sia6 localized to the endoplasmic reticulum (ER). We found that the localization to the Golgi apparatus could be regulated by swapping experiments using St8sia2; however, the malignant phenotype did not change. These data demonstrate that the enhancement of anchorage-independent cell growth by St8sia6 is not due to its localization of ER, but is due to the expression of the protein itself.
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Affiliation(s)
- Rina Hatanaka
- Bioscience and Biotechnology Center, Nagoya University, Chikusa, Nagoya, 464-8601, Japan; Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya, 464-8601, Japan
| | - Erino Araki
- Bioscience and Biotechnology Center, Nagoya University, Chikusa, Nagoya, 464-8601, Japan; Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya, 464-8601, Japan; Integrated Glyco-Biomedical Research Center (iGMED), Institute for Glyco-core Research (iGCORE), Nagoya University, Chikusa, Nagoya, 464-8601, Japan
| | - Masaya Hane
- Bioscience and Biotechnology Center, Nagoya University, Chikusa, Nagoya, 464-8601, Japan; Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya, 464-8601, Japan; Integrated Glyco-Biomedical Research Center (iGMED), Institute for Glyco-core Research (iGCORE), Nagoya University, Chikusa, Nagoya, 464-8601, Japan
| | - Shiori Go
- Bioscience and Biotechnology Center, Nagoya University, Chikusa, Nagoya, 464-8601, Japan; Integrated Glyco-Biomedical Research Center (iGMED), Institute for Glyco-core Research (iGCORE), Nagoya University, Chikusa, Nagoya, 464-8601, Japan
| | - Di Wu
- Bioscience and Biotechnology Center, Nagoya University, Chikusa, Nagoya, 464-8601, Japan; Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya, 464-8601, Japan; Integrated Glyco-Biomedical Research Center (iGMED), Institute for Glyco-core Research (iGCORE), Nagoya University, Chikusa, Nagoya, 464-8601, Japan
| | - Ken Kitajima
- Bioscience and Biotechnology Center, Nagoya University, Chikusa, Nagoya, 464-8601, Japan; Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya, 464-8601, Japan; Integrated Glyco-Biomedical Research Center (iGMED), Institute for Glyco-core Research (iGCORE), Nagoya University, Chikusa, Nagoya, 464-8601, Japan
| | - Chihiro Sato
- Bioscience and Biotechnology Center, Nagoya University, Chikusa, Nagoya, 464-8601, Japan; Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya, 464-8601, Japan; Integrated Glyco-Biomedical Research Center (iGMED), Institute for Glyco-core Research (iGCORE), Nagoya University, Chikusa, Nagoya, 464-8601, Japan.
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30
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Irons EE, Cortes Gomez E, Andersen VL, Lau JTY. Bacterial colonization and TH17 immunity are shaped by intestinal sialylation in neonatal mice. Glycobiology 2022; 32:414-428. [PMID: 35157771 PMCID: PMC9022908 DOI: 10.1093/glycob/cwac005] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2021] [Revised: 01/10/2022] [Accepted: 01/30/2022] [Indexed: 11/14/2022] Open
Abstract
Interactions between the neonate host and its gut microbiome are central to the development of a healthy immune system. However, the mechanisms by which animals alter early colonization of microbiota for their benefit remain unclear. Here, we investigated the role of early-life expression of the α2,6-sialyltransferase ST6GAL1 in microbiome phylogeny and mucosal immunity. Fecal, upper respiratory, and oral microbiomes of pups expressing or lacking St6gal1 were analyzed by 16S rRNA sequencing. At weaning, the fecal microbiome of St6gal1-KO mice had reduced Clostridiodes, Coprobacillus, and Adlercreutzia, but increased Helicobacter and Bilophila. Pooled fecal microbiomes from syngeneic donors were transferred to antibiotic-treated wild-type mice, before analysis of recipient mucosal immune responses by flow cytometry, RT-qPCR, microscopy, and ELISA. Transfer of St6gal1-KO microbiome induced a mucosal Th17 response, with expression of T-bet and IL-17, and IL-22-dependent gut lengthening. Early life intestinal sialylation was characterized by RT-qPCR, immunoblot, microscopy, and sialyltransferase enzyme assays in genetic mouse models at rest or with glucocorticoid receptor modulators. St6gal1 expression was greatest in the duodenum, where it was mediated by the P1 promoter and efficiently inhibited by dexamethasone. Our data show that the inability to produce α2,6-sialyl ligands contributes to microbiome-dependent Th17 inflammation, highlighting a pathway by which the intestinal glycosylation regulates mucosal immunity.
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Affiliation(s)
- Eric E Irons
- Department of Molecular and Cellular Biology, Roswell Park Comprehensive Cancer Center, Elm and Carlton Streets, Buffalo, NY 14263, United States
| | - Eduardo Cortes Gomez
- Department of Biostatistics and Bioinformatics, Roswell Park Comprehensive Cancer Center, Elm and Carlton Streets, Buffalo, NY 14263, United States
| | - Valerie L Andersen
- Department of Molecular and Cellular Biology, Roswell Park Comprehensive Cancer Center, Elm and Carlton Streets, Buffalo, NY 14263, United States
| | - Joseph T Y Lau
- Corresponding author: Department of Molecular and Cellular Biology, Roswell Park Comprehensive Cancer Center, Elm and Carlton Streets, Buffalo, NY 14263, USA.
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Villanueva-Cabello TM, Gutiérrez-Valenzuela LD, Salinas-Marín R, López-Guerrero DV, Martínez-Duncker I. Polysialic Acid in the Immune System. Front Immunol 2022; 12:823637. [PMID: 35222358 PMCID: PMC8873093 DOI: 10.3389/fimmu.2021.823637] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2021] [Accepted: 12/28/2021] [Indexed: 01/01/2023] Open
Abstract
Polysialic acid (polySia) is a highly regulated polymer of sialic acid (Sia) with such potent biophysical characteristics that when expressed drastically influences the interaction properties of cells. Although much of what is known of polySia in mammals has been elucidated from the study of its role in the central nervous system (CNS), polySia is also expressed in other tissues, including the immune system where it presents dynamic changes during differentiation, maturation, and activation of different types of immune cells of the innate and adaptive response, being involved in key regulatory mechanisms. At least six polySia protein carriers (CCR7, ESL-1, NCAM, NRP2, ST8Sia 2, and ST8Sia 4) are expressed in different types of immune cells, but there is still much to be explored in regard not only to the regulatory mechanisms that determine their expression and the structure of polySia chains but also to the identification of the cis- and trans- ligands of polySia that establish signaling networks. This review summarizes the current knowledge on polySia in the immune system, addressing its biosynthesis, its tools for identification and structural characterization, and its functional roles and therapeutic implications.
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Affiliation(s)
- Tania M. Villanueva-Cabello
- Laboratorio de Glicobiología Humana y Diagnóstico Molecular, Centro de Investigación en Dinámica Celular, Instituto de Investigación en Ciencias Básicas y Aplicadas, Universidad Autónoma del Estado de Morelos, Cuernavaca, Mexico
| | - Lya D. Gutiérrez-Valenzuela
- Laboratorio de Glicobiología Humana y Diagnóstico Molecular, Centro de Investigación en Dinámica Celular, Instituto de Investigación en Ciencias Básicas y Aplicadas, Universidad Autónoma del Estado de Morelos, Cuernavaca, Mexico
- Instituto de Biotecnología, Universidad Nacional Autónoma de México, Cuernavaca, Mexico
| | - Roberta Salinas-Marín
- Laboratorio de Glicobiología Humana y Diagnóstico Molecular, Centro de Investigación en Dinámica Celular, Instituto de Investigación en Ciencias Básicas y Aplicadas, Universidad Autónoma del Estado de Morelos, Cuernavaca, Mexico
| | | | - Iván Martínez-Duncker
- Laboratorio de Glicobiología Humana y Diagnóstico Molecular, Centro de Investigación en Dinámica Celular, Instituto de Investigación en Ciencias Básicas y Aplicadas, Universidad Autónoma del Estado de Morelos, Cuernavaca, Mexico
- *Correspondence: Iván Martínez-Duncker,
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32
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Araki E, Hane M, Hatanaka R, Kimura R, Tsuda K, Konishi M, Komura N, Ando H, Kitajima K, Sato C. Analysis of biochemical features of ST8 α-N-acetyl-neuraminide α2,8-sialyltransferase (St8sia) 5 isoforms. Glycoconj J 2022; 39:291-302. [PMID: 34982351 DOI: 10.1007/s10719-021-10034-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 11/24/2021] [Accepted: 12/08/2021] [Indexed: 12/11/2022]
Abstract
Gangliosides are important components of the membrane and are involved in many biological activities. St8sia5 is an α2,8-sialyltransferase involved in ganglioside synthesis, and has three isoforms. In this study, we analyzed the features of three isoforms, St8sia5-S, -M, and -L that had not been analyzed, and found that only St8sia5-L was localized in the Golgi, while the majority of St8sia5-M and -S were localized in the ER. The localization of Golgi of St8sia5 depended on the stem region. In addition, the incorporation of exogenous GD3 was upregulated only in St8sia5-L expressing cells. Taken together, the localization of St8sia5 is important for the activity of the enzyme.
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Affiliation(s)
- Erino Araki
- Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya, 464-8601, Japan
- Bioscience and Biotechnology Center, Nagoya University, Chikusa, Nagoya, 464-8601, Japan
| | - Masaya Hane
- Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya, 464-8601, Japan
- Bioscience and Biotechnology Center, Nagoya University, Chikusa, Nagoya, 464-8601, Japan
- Glyco-BioMedical Research Center (iGMED), Institute for Glyco-core Research (iGCORE), Nagoya University, Chikusa, Nagoya, 464-8601, Japan
| | - Rina Hatanaka
- Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya, 464-8601, Japan
- Bioscience and Biotechnology Center, Nagoya University, Chikusa, Nagoya, 464-8601, Japan
| | - Ryota Kimura
- Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya, 464-8601, Japan
- Bioscience and Biotechnology Center, Nagoya University, Chikusa, Nagoya, 464-8601, Japan
| | - Kana Tsuda
- Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya, 464-8601, Japan
- Bioscience and Biotechnology Center, Nagoya University, Chikusa, Nagoya, 464-8601, Japan
| | - Miku Konishi
- Institute for Glyco-Core Research (iGCORE), Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan
| | - Naoko Komura
- Institute for Glyco-Core Research (iGCORE), Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan
| | - Hiromune Ando
- Institute for Glyco-Core Research (iGCORE), Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan
| | - Ken Kitajima
- Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya, 464-8601, Japan
- Bioscience and Biotechnology Center, Nagoya University, Chikusa, Nagoya, 464-8601, Japan
- Glyco-BioMedical Research Center (iGMED), Institute for Glyco-core Research (iGCORE), Nagoya University, Chikusa, Nagoya, 464-8601, Japan
| | - Chihiro Sato
- Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya, 464-8601, Japan.
- Bioscience and Biotechnology Center, Nagoya University, Chikusa, Nagoya, 464-8601, Japan.
- Glyco-BioMedical Research Center (iGMED), Institute for Glyco-core Research (iGCORE), Nagoya University, Chikusa, Nagoya, 464-8601, Japan.
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Abstract
Sialylation is a dynamically regulated modification, which commonly occurs at the terminal of glycan chains in glycoproteins and glycolipids in eukaryotic cells. Sialylation plays a key role in a wide array of biological processes through the regulation of protein-protein interactions, intracellular localization, vesicular trafficking, and signal transduction. A majority of the proteins involved in lipoprotein metabolism and atherogenesis, such as apolipoproteins and lipoprotein receptors, are sialylated in their glycan structures. Earlier studies in humans and in preclinical models found a positive correlation between low sialylation of lipoproteins and atherosclerosis. More recent works using loss- and gain-of-function approaches in mice have revealed molecular and cellular mechanisms by which protein sialylation modulates causally the process of atherosclerosis. The purpose of this concise review is to summarize these findings in mouse models and to provide mechanistic insights into lipoprotein sialylation and atherosclerosis.
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Affiliation(s)
- Liming Yu
- Center for Pulmonary and Vascular Biology, Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, TX, United States
| | - Jun Peng
- Center for Pulmonary and Vascular Biology, Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, TX, United States
| | - Chieko Mineo
- Center for Pulmonary and Vascular Biology, Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, TX, United States
- Department of Cell Biology, University of Texas Southwestern Medical Center, Dallas, TX, United States
- *Correspondence: Chieko Mineo,
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Xu P, Zhang X, Cao J, Yang J, Chen Z, Wang W, Wang S, Zhang L, Xie L, Fang L, Xia Y, Xuan Z, Lv J, Xu H, Xu Z. The novel role of circular RNA ST3GAL6 on blocking gastric cancer malignant behaviours through autophagy regulated by the FOXP2/MET/mTOR axis. Clin Transl Med 2022; 12:e707. [PMID: 35061934 PMCID: PMC8782491 DOI: 10.1002/ctm2.707] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 12/22/2021] [Accepted: 12/29/2021] [Indexed: 02/03/2023] Open
Abstract
Gastric cancer (GC) ranks third in mortality among all cancers worldwide. Circular RNAs (circRNAs) play an important role in the occurrence and development of gastric cancer. Forkhead box P2 (FOXP2), as a transcription factor, is closely associated with the development of many types of tumours. However, the regulatory network between FOXP2 and circRNAs remains to be explored. In our study, circST3GAL6 was significantly downregulated in GC and was associated with poor prognosis in GC patients. Overexpression of circST3GAL6 inhibited the malignant behaviours of GC cells, which was mediated by inducing apoptosis and autophagy. In addition, we demonstrated that circST3GAL6 regulated FOXP2 through the mir-300 sponge. We further found that FOXP2 inhibited MET Proto-Oncogene (MET), which was the initiating factor that regulated the classic AKT/mTOR pathway of autophagy. In conclusion, our results suggested that circST3GAL6 played a tumour suppressive role in gastric cancer through miR-300/FOXP2 axis and regulated apoptosis and autophagy through FOXP2-mediated transcriptional inhibition of the MET axis, which may become a potential target for GC therapy.
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Affiliation(s)
- Penghui Xu
- Department of General Surgerythe First Affiliated Hospital of Nanjing Medical UniversityNanjingChina
| | - Xing Zhang
- Department of General Surgerythe First Affiliated Hospital of Nanjing Medical UniversityNanjingChina
| | - Jiacheng Cao
- Department of General Surgerythe First Affiliated Hospital of Nanjing Medical UniversityNanjingChina
| | - Jing Yang
- Department of General Surgerythe First Affiliated Hospital of Nanjing Medical UniversityNanjingChina
| | - Zetian Chen
- Department of General Surgerythe First Affiliated Hospital of Nanjing Medical UniversityNanjingChina
| | - Weizhi Wang
- Department of General Surgerythe First Affiliated Hospital of Nanjing Medical UniversityNanjingChina
| | - Sen Wang
- Department of General Surgerythe First Affiliated Hospital of Nanjing Medical UniversityNanjingChina
| | - Lu Zhang
- Department of General Surgerythe First Affiliated Hospital of Nanjing Medical UniversityNanjingChina
| | - Li Xie
- Department of General Surgerythe First Affiliated Hospital of Nanjing Medical UniversityNanjingChina
| | - Lang Fang
- Department of General Surgerythe First Affiliated Hospital of Nanjing Medical UniversityNanjingChina
| | - Yiwen Xia
- Department of General Surgerythe First Affiliated Hospital of Nanjing Medical UniversityNanjingChina
| | - Zhe Xuan
- Department of General Surgerythe First Affiliated Hospital of Nanjing Medical UniversityNanjingChina
| | - Jialun Lv
- Department of General Surgerythe First Affiliated Hospital of Nanjing Medical UniversityNanjingChina
| | - Hao Xu
- Department of General Surgerythe First Affiliated Hospital of Nanjing Medical UniversityNanjingChina
- Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Personalized Cancer MedicineNanjing Medical UniversityNanjingChina
| | - Zekuan Xu
- Department of General Surgerythe First Affiliated Hospital of Nanjing Medical UniversityNanjingChina
- Collaborative Innovation Center for Cancer Personalized MedicineNanjing Medical UniversityNanjingChina
- Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Personalized Cancer MedicineNanjing Medical UniversityNanjingChina
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Hugonnet M, Singh P, Haas Q, von Gunten S. The Distinct Roles of Sialyltransferases in Cancer Biology and Onco-Immunology. Front Immunol 2021; 12:799861. [PMID: 34975914 PMCID: PMC8718907 DOI: 10.3389/fimmu.2021.799861] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Accepted: 12/02/2021] [Indexed: 12/24/2022] Open
Abstract
Aberrant glycosylation is a key feature of malignant transformation. Hypersialylation, the enhanced expression of sialic acid-terminated glycoconjugates on the cell surface, has been linked to immune evasion and metastatic spread, eventually by interaction with sialoglycan-binding lectins, including Siglecs and selectins. The biosynthesis of tumor-associated sialoglycans involves sialyltransferases, which are differentially expressed in cancer cells. In this review article, we provide an overview of the twenty human sialyltransferases and their roles in cancer biology and immunity. A better understanding of the individual contribution of select sialyltransferases to the tumor sialome may lead to more personalized strategies for the treatment of cancer.
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Affiliation(s)
- Marjolaine Hugonnet
- Institute of Pharmacology, University of Bern, Bern, Switzerland
- Bern Center for Precision Medicine (BCPM), University of Bern, Bern, Switzerland
| | - Pushpita Singh
- Institute of Pharmacology, University of Bern, Bern, Switzerland
| | - Quentin Haas
- Institute of Pharmacology, University of Bern, Bern, Switzerland
| | - Stephan von Gunten
- Institute of Pharmacology, University of Bern, Bern, Switzerland
- Bern Center for Precision Medicine (BCPM), University of Bern, Bern, Switzerland
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Yoneyama T, Yamamoto H, Sutoh Yoneyama M, Tobisawa Y, Hatakeyama S, Narita T, Kodama H, Momota M, Ito H, Narita S, Tsushima F, Mitsuzuka K, Yoneyama T, Hashimoto Y, Duivenvoorden W, Pinthus JH, Kakeda S, Ito A, Tsuchiya N, Habuchi T, Ohyama C. Characteristics of α2,3-sialyl N-glycosylated PSA as a biomarker for clinically significant prostate cancer in men with elevated PSA level. Prostate 2021; 81:1411-1427. [PMID: 34549452 PMCID: PMC9293073 DOI: 10.1002/pros.24239] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Accepted: 09/10/2021] [Indexed: 11/28/2022]
Abstract
BACKGROUND The presence of glycosylated isoforms of prostate-specific antigen (PSA) in prostate cancer (PC) cells is a potential marker of their aggressiveness. We characterized the origin of α2,3-sialylated prostate-specific antigen (S23PSA) by tissue-based sialylation-related gene expression and studied the performance of S23PSA density (S23PSAD) alone and in combination with multiparametric magnetic resonance imaging (MRI) for the detection of clinically significant prostate cancer in men with elevated PSA. METHODS Tissue-based quantification of S23PSA and sialyltransferase and sialidase gene expression was evaluated in 71 radical prostatectomy specimens. The diagnostic performance of S23PSAD was studied in 1099 men retrospectively enrolled in a multicenter systematic biopsy (SBx) cohort. We correlated the S23PSAD with Prostate Imaging Reporting and Data System (PI-RADS) scores in 98 men prospectively enrolled in a single-center MRI-targeted biopsy (MRI-TBx) cohort. The primary outcome was the PC-diagnostic performance of the S23PSAD, the secondary outcome was the avoidable biopsy rate of S23PSAD combined with DRE and total PSA (tPSA), and with or without PI-RADS. RESULTS S23PSA was significantly higher in Gleason pattern 4 and 5 compared with benign prostate tissue. In the retrospective cohort, the performance of S23PSAD for detecting PC was superior to tPSA or PSA density (PSAD) (AUC: 0.7758 vs. 0.6360 and 0.7509, respectively). In the prospective cohort, S23PSAD was superior to tPSA, PSAD, and PI-RADS (AUC: 0.7725 vs. 0.5901, 0.7439 and 0.7305, respectively), and S23PSAD + PI-RADS + DRE + tPSA was superior to DRE + tPSA+PI-RADS with avoidance rate of MRI-TBx (13% vs. 1%) at 30% risk threshold. CONCLUSIONS The diagnostic performance of S23PSAD was superior to conventional strategies but comparable to mpMRI.
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Affiliation(s)
- Tohru Yoneyama
- Department of Glycotechnology, Center for Advanced Medical ResearchHirosaki University Graduate School of MedicineHirosakiAomoriJapan
| | - Hayato Yamamoto
- Department of UrologyHirosaki University Graduate School of MedicineHirosakiAomoriJapan
| | - Mihoko Sutoh Yoneyama
- Department of Cancer Immunology and Cell BiologyOyokyo Kidney Research Institute90 Yamazaki KozawaHirosakiAomoriJapan
| | - Yuki Tobisawa
- Department of UrologyHirosaki University Graduate School of MedicineHirosakiAomoriJapan
| | - Shingo Hatakeyama
- Department of UrologyHirosaki University Graduate School of MedicineHirosakiAomoriJapan
- Department of Advanced Blood Purification TherapyHirosaki University Graduate School of MedicineHirosakiAomoriJapan
| | - Takuma Narita
- Department of UrologyHirosaki University Graduate School of MedicineHirosakiAomoriJapan
- Department of UrologyNational Hospital Organization Hirosaki National HospitalHirosakiAomoriJapan
| | - Hirotake Kodama
- Department of UrologyHirosaki University Graduate School of MedicineHirosakiAomoriJapan
- Department of UrologyTsugaru General HospitalGoshogawaraAomoriJapan
| | - Masaki Momota
- Department of UrologyHirosaki University Graduate School of MedicineHirosakiAomoriJapan
- Department of UrologyMutsu General HospitalMutsuAomoriJapan
| | - Hiroyuki Ito
- Department of UrologyAomori Rosai HospitalHachinoheAomoriJapan
| | - Shintaro Narita
- Department of UrologyAkita University Graduate School of MedicineAkitaJapan
| | - Fumiyasu Tsushima
- Department of RadiologyHirosaki University Graduate School of MedicineHirosakiAomoriJapan
| | - Koji Mitsuzuka
- Department of UrologyTohoku University Graduate School of MedicineSendaiMiyagiJapan
| | - Takahiro Yoneyama
- Department of UrologyHirosaki University Graduate School of MedicineHirosakiAomoriJapan
| | - Yasuhiro Hashimoto
- Department of UrologyHirosaki University Graduate School of MedicineHirosakiAomoriJapan
| | | | | | - Shingo Kakeda
- Department of RadiologyHirosaki University Graduate School of MedicineHirosakiAomoriJapan
| | - Akihiro Ito
- Department of UrologyTohoku University Graduate School of MedicineSendaiMiyagiJapan
| | - Norihiko Tsuchiya
- Department of UrologyYamagata University Faculty of MedicineYamagataJapan
| | - Tomonori Habuchi
- Department of UrologyAkita University Graduate School of MedicineAkitaJapan
| | - Chikara Ohyama
- Department of UrologyHirosaki University Graduate School of MedicineHirosakiAomoriJapan
- Department of Advanced Blood Purification TherapyHirosaki University Graduate School of MedicineHirosakiAomoriJapan
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Cho JH, Ju WS, Seo SY, Kim BH, Kim JS, Kim JG, Park SJ, Choo YK. The Potential Role of Human NME1 in Neuronal Differentiation of Porcine Mesenchymal Stem Cells: Application of NB-hNME1 as a Human NME1 Suppressor. Int J Mol Sci 2021; 22:ijms222212194. [PMID: 34830075 PMCID: PMC8619003 DOI: 10.3390/ijms222212194] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 11/02/2021] [Accepted: 11/08/2021] [Indexed: 12/31/2022] Open
Abstract
This study aimed to investigate the effects of the human macrophage (MP) secretome in cellular xenograft rejection. The role of human nucleoside diphosphate kinase A (hNME1), from the secretome of MPs involved in the neuronal differentiation of miniature pig adipose tissue-derived mesenchymal stem cells (mp AD-MSCs), was evaluated by proteomic analysis. Herein, we first demonstrate that hNME1 strongly binds to porcine ST8 alpha-N-acetyl-neuraminide alpha-2,8-sialyltransferase 1 (pST8SIA1), which is a ganglioside GD3 synthase. When hNME1 binds with pST8SIA1, it induces degradation of pST8SIA1 in mp AD-MSCs, thereby inhibiting the expression of ganglioside GD3 followed by decreased neuronal differentiation of mp AD-MSCs. Therefore, we produced nanobodies (NBs) named NB-hNME1 that bind to hNME1 specifically, and the inhibitory effect of NB-hNME1 was evaluated for blocking the binding between hNME1 and pST8SIA1. Consequently, NB-hNME1 effectively blocked the binding of hNME1 to pST8SIA1, thereby recovering the expression of ganglioside GD3 and neuronal differentiation of mp AD-MSCs. Our findings suggest that mp AD-MSCs could be a potential candidate for use as an additive, such as an immunosuppressant, in stem cell transplantation.
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Affiliation(s)
- Jin Hyoung Cho
- Department of Biological Science, College of Natural Sciences, Wonkwang University, 460, Iksan-daero, Iksan-si 54538, Korea; (J.H.C.); (W.S.J.); (S.Y.S.); (J.-G.K.); (S.J.P.)
- GreenBio Corp. Central Research, 201-19, Bubaljungand-ro, Bubal-eup, Icheon-si 17321, Korea
| | - Won Seok Ju
- Department of Biological Science, College of Natural Sciences, Wonkwang University, 460, Iksan-daero, Iksan-si 54538, Korea; (J.H.C.); (W.S.J.); (S.Y.S.); (J.-G.K.); (S.J.P.)
- Institute for Glycoscience, Wonkwang University, 460, Iksan-daero, Iksan-si 54538, Korea
| | - Sang Young Seo
- Department of Biological Science, College of Natural Sciences, Wonkwang University, 460, Iksan-daero, Iksan-si 54538, Korea; (J.H.C.); (W.S.J.); (S.Y.S.); (J.-G.K.); (S.J.P.)
| | - Bo Hyun Kim
- CHA Fertility Center Bundang, 59, Yatap-ro, Bundang-gu, Seongnam-si 13496, Korea;
| | - Ji-Su Kim
- Primate Resources Center (PRC), Korea Research Institute of Bioscience and Biotechnology, 181, Ipsin-gil, Jeongeup-si 56216, Korea;
| | - Jong-Geol Kim
- Department of Biological Science, College of Natural Sciences, Wonkwang University, 460, Iksan-daero, Iksan-si 54538, Korea; (J.H.C.); (W.S.J.); (S.Y.S.); (J.-G.K.); (S.J.P.)
| | - Soon Ju Park
- Department of Biological Science, College of Natural Sciences, Wonkwang University, 460, Iksan-daero, Iksan-si 54538, Korea; (J.H.C.); (W.S.J.); (S.Y.S.); (J.-G.K.); (S.J.P.)
| | - Young-Kug Choo
- Department of Biological Science, College of Natural Sciences, Wonkwang University, 460, Iksan-daero, Iksan-si 54538, Korea; (J.H.C.); (W.S.J.); (S.Y.S.); (J.-G.K.); (S.J.P.)
- Institute for Glycoscience, Wonkwang University, 460, Iksan-daero, Iksan-si 54538, Korea
- Correspondence: ; Tel.: +82-63-850-6087; Fax: +82-63-857-8837
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38
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Kurz E, Chen S, Vucic E, Baptiste G, Loomis C, Agrawal P, Hajdu C, Bar-Sagi D, Mahal LK. Integrated Systems Analysis of the Murine and Human Pancreatic Cancer Glycomes Reveals a Tumor-Promoting Role for ST6GAL1. Mol Cell Proteomics 2021; 20:100160. [PMID: 34634466 PMCID: PMC8604807 DOI: 10.1016/j.mcpro.2021.100160] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2021] [Revised: 10/01/2021] [Accepted: 10/05/2021] [Indexed: 02/06/2023] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is the third leading cause of cancer death in the United States. Glycans, such as carbohydrate antigen 19-9, are biomarkers of PDAC and are emerging as important modulators of cancer phenotypes. Herein, we used a systems-based approach integrating glycomic analysis of the well-established KC mouse, which models early events in transformation, and analysis of samples from human pancreatic cancer patients to identify glycans with potential roles in cancer formation. We observed both common and distinct patterns of glycosylation in pancreatic cancer across species. Common alterations included increased levels of α-2,3-sialic acid and α-2,6-sialic acid, bisecting GlcNAc and poly-N-acetyllactosamine. However, core fucose, which was increased in human PDAC, was not seen in the mouse, indicating that not all human glycomic changes are observed in the KC mouse model. In silico analysis of bulk and single-cell sequencing data identified ST6 beta-galactoside alpha-2,6-sialyltransferase 1, which underlies α-2,6-sialic acid, as overexpressed in human PDAC, concordant with histological data showing higher levels of this enzyme at the earliest stages. To test whether ST6 beta-galactoside alpha-2,6-sialyltransferase 1 promotes pancreatic cancer, we created a novel mouse in which a pancreas-specific genetic deletion of this enzyme overlays the KC mouse model. The analysis of our new model showed delayed cancer formation and a significant reduction in fibrosis. Our results highlight the importance of a strategic systems approach to identifying glycans whose functions can be modeled in mouse, a crucial step in the development of therapeutics targeting glycosylation in pancreatic cancer.
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Affiliation(s)
- Emma Kurz
- Department of Cell Biology, NYU Grossman School of Medicine, New York, New York, USA
| | - Shuhui Chen
- Department of Chemistry, Biomedical Research Institute, New York University, New York, New York, USA
| | - Emily Vucic
- Department of Biochemistry and Molecular Pharmacology, NYU Grossman School of Medicine, New York, New York, USA
| | - Gillian Baptiste
- Department of Pathology, NYU Grossman School of Medicine, New York, New York, USA
| | - Cynthia Loomis
- Office of Science and Research, NYU Grossman School of Medicine, New York, New York, USA
| | - Praveen Agrawal
- Department of Pathology, NYU Grossman School of Medicine, New York, New York, USA
| | - Cristina Hajdu
- Department of Pathology, NYU Grossman School of Medicine, New York, New York, USA
| | - Dafna Bar-Sagi
- Department of Biochemistry and Molecular Pharmacology, NYU Grossman School of Medicine, New York, New York, USA.
| | - Lara K Mahal
- Department of Chemistry, Biomedical Research Institute, New York University, New York, New York, USA.
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Moe GR, Steirer LM, Lee JA, Shivakumar A, Bolanos AD. A cancer-unique glycan: de-N-acetyl polysialic acid (dPSA) linked to cell surface nucleolin depends on re-expression of the fetal polysialyltransferase ST8SIA2 gene. J Exp Clin Cancer Res 2021; 40:293. [PMID: 34544457 PMCID: PMC8451149 DOI: 10.1186/s13046-021-02099-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Accepted: 09/07/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Polysialic acid (polySia) modifies six cell surface proteins in humans mainly during fetal development and some blood cells in adults. Two genes in humans, ST8SIA2 and ST8SIA4, code for polysialyltransferases that synthesize polySia. ST8SIA2 is highly expressed during fetal development and in cancer but not in adult normal human cells. ST8SIA4 is expressed in fetal and adult brain, spleen, thymus, and peripheral blood leukocytes and in cancer. We identified a derivative of polySia containing de-N-acetyl neuraminic acid residues (dPSA), which is expressed on the cell surface of human cancer cell lines and tumors but not normal cells. METHODS dPSA-modified proteins in several human cancer cell lines and normal blood cells were identified using co-immunoprecipitation with anti-dPSA antibodies, mass spectroscopy and Western blot. RNAi and CRISPR were used to knockdown and knockout, respectively, the polysialyltransferase genes in human melanoma SK-MEL-28 and neuroblastoma CHP-134 cell lines, respectively, to determine the effect on production of cell surface dPSA measured by flow cytometry and fluorescence microscopy. RESULTS We found that dPSA is linked to or associated with nucleolin, a nuclear protein reported to be on the cell surface of cancer but not normal cells. Knocking down expression of ST8SIA2 with RNAi or knocking out each gene individually and in combination using CRISPR showed that cell surface dPSA depended on expression of ST8SIA2. CONCLUSIONS The presence of dPSA specifically in a broad range of human cancers but not human adult normal cells offers novel possibilities for diagnosis, prevention and treatment targeting the dPSA antigen that appears to be cancer-specific, consistent across not only human cancers but also species, and may be an unrecognized mechanism of immune shielding.
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Affiliation(s)
- Gregory R Moe
- UCSF Benioff Children's Hospital Oakland, 5700 Martin Luther King Jr. Way, Oakland, CA, 94609, USA.
| | - Lindsay M Steirer
- UCSF Benioff Children's Hospital Oakland, 5700 Martin Luther King Jr. Way, Oakland, CA, 94609, USA
| | - Joshua A Lee
- UCSF Benioff Children's Hospital Oakland, 5700 Martin Luther King Jr. Way, Oakland, CA, 94609, USA
| | - Adarsha Shivakumar
- UCSF Benioff Children's Hospital Oakland, 5700 Martin Luther King Jr. Way, Oakland, CA, 94609, USA
| | - Alejandro D Bolanos
- UCSF Benioff Children's Hospital Oakland, 5700 Martin Luther King Jr. Way, Oakland, CA, 94609, USA
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40
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Suzuki M, Nagane M, Kato K, Yamauchi A, Shimizu T, Yamashita H, Aihara N, Kamiie J, Kawashima N, Naito S, Yamashita T. Endothelial ganglioside GM3 regulates angiogenesis in solid tumors. Biochem Biophys Res Commun 2021; 569:10-16. [PMID: 34216992 DOI: 10.1016/j.bbrc.2021.06.063] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2021] [Accepted: 06/18/2021] [Indexed: 11/18/2022]
Abstract
Cancer cells require oxygen and nutrients for growth, making angiogenesis one of the essential components of tumor growth. Gangliosides, constituting membrane lipid rafts, regulate intracellular signal transduction and are involved in the malignancy of cancer cells. While endothelial cells, as well as cancer cells, express vast amounts of gangliosides, the precise function of endothelial gangliosides in angiogenesis remains unclear. In this study, we focused on gangliosides of vascular endothelial cells and analyzed their functions on tumor angiogenesis. In human breast cancer, GM3 synthase was highly expressed in vascular endothelial cells as well as immune cells. Angiogenesis increased in GM3S-KO mice. In BAEC, RNA interference of GM3S showed increased cellular invasion and oxidative stress tolerance through activation of ERK. In the breast cancer model, GM3-KO mice showed an increase in tumor growth and angiogenesis. These results suggest that the endothelial ganglioside GM3 regulates tumor angiogenesis by suppressing cellular invasion and oxidative stress tolerance in endothelial cells.
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Affiliation(s)
- Mira Suzuki
- Laboratory of Biochemistry, School of Veterinary Medicine, Azabu University, Sagamihara, Kanagawa, Japan
| | - Masaki Nagane
- Laboratory of Biochemistry, School of Veterinary Medicine, Azabu University, Sagamihara, Kanagawa, Japan
| | - Kazuhiro Kato
- Laboratory of Biochemistry, School of Veterinary Medicine, Azabu University, Sagamihara, Kanagawa, Japan
| | - Akinori Yamauchi
- Laboratory of Biochemistry, School of Veterinary Medicine, Azabu University, Sagamihara, Kanagawa, Japan
| | - Takuto Shimizu
- Laboratory of Biochemistry, School of Veterinary Medicine, Azabu University, Sagamihara, Kanagawa, Japan
| | - Hiroko Yamashita
- Department of Breast Surgery, Hokkaido University Hospital, Sapporo, Japan
| | - Naoyuki Aihara
- Laboratory of Veterinary Pathology, School of Veterinary Medicine, Azabu University, Sagamihara, Kanagawa, Japan
| | - Junichi Kamiie
- Laboratory of Veterinary Pathology, School of Veterinary Medicine, Azabu University, Sagamihara, Kanagawa, Japan
| | - Nagako Kawashima
- Department of Nephrology, Kitasato University School of Medicine, Sagamihara, Kanagawa, Japan
| | - Shokichi Naito
- Department of Nephrology, Kitasato University School of Medicine, Sagamihara, Kanagawa, Japan
| | - Tadashi Yamashita
- Laboratory of Biochemistry, School of Veterinary Medicine, Azabu University, Sagamihara, Kanagawa, Japan.
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Friedman DJ, Crotts SB, Shapiro MJ, Rajcula M, McCue S, Liu X, Khazaie K, Dong H, Shapiro VS. ST8Sia6 Promotes Tumor Growth in Mice by Inhibiting Immune Responses. Cancer Immunol Res 2021; 9:952-966. [PMID: 34074677 PMCID: PMC8338779 DOI: 10.1158/2326-6066.cir-20-0834] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Revised: 03/05/2021] [Accepted: 05/26/2021] [Indexed: 01/27/2023]
Abstract
Many tumors exhibit increased incorporation of sialic acids into cell-surface glycans, which impact the tumor microenvironment. Sialic acid immunoglobulin-like lectins (Siglec) are receptors that recognize sialic acids and modulate immune responses, including responses to tumors. However, the roles of individual sialyltransferases in tumorigenesis and tumor growth are not well understood. Here, we examined the sialyltransferase ST8Sia6, which generated α2,8-linked disialic acids that bind to murine Siglec-E and human Siglec-7 and -9. Increased ST8Sia6 expression was found on many human tumors and associated with decreased survival in several cancers, including colon cancer. Because of this, we engineered MC38 and B16-F10 tumor lines to express ST8Sia6. ST8Sia6-expressing MC38 and B16-F10 tumors exhibited faster growth and led to decreased survival, which required host Siglec-E. ST8Sia6 expression on tumors also altered macrophage polarization toward M2, including upregulation of the immune modulator arginase, which also required Siglec-E. ST8Sia6 also accelerated tumorigenesis in a genetically engineered, spontaneous murine model of colon cancer, decreasing survival from approximately 6 months to 67 days. Thus, ST8Sia6 expression on tumors inhibits antitumor immune responses to accelerate tumor growth.
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Affiliation(s)
| | | | | | | | - Shaylene McCue
- Department of Immunology, Mayo Clinic, Rochester, Minnesota
| | - Xin Liu
- Department of Immunology, Mayo Clinic, Rochester, Minnesota
| | | | - Haidong Dong
- Department of Immunology, Mayo Clinic, Rochester, Minnesota
- Department of Urology, College of Medicine, Mayo Clinic, Rochester, Minnesota
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Li X, Guo Y, Song Y, Sun R, Zhu M, Tan Z, Swaiba UE, Zhang L, Huang J. The glycosyltransferase ST3GAL2 modulates virus proliferation and the inflammation response in porcine reproductive and respiratory syndrome virus infection. Arch Virol 2021; 166:2723-2732. [PMID: 34319453 DOI: 10.1007/s00705-021-05180-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Accepted: 05/10/2021] [Indexed: 11/27/2022]
Abstract
β-galactoside α-2,3-sialyltransferase 2 (ST3GAL2) is a member of the sialyltransferase family that mediates terminal modification of glycoproteins and glycolipids. ST3GAL2 has been found to play a role in obesity, aging, and malignant diseases. In this study, we cloned porcine ST3GAL2 (pST3GAL2) from porcine alveolar macrophages (PAMs), and its role in porcine reproductive and respiratory syndrome virus (PRRSV) infection was investigated by transcriptome analysis. pST3GAL2 was found to be located in the Golgi apparatus, and it was expressed at high levels in PRRSV-infected PAMs. Overexpression of pST3GAL2 resulted in a slight increase in PRRSV proliferation, and the interaction between pST3GAL2 and GP2a of PRRSV was detected by coimmunoprecipitation and confocal microscopy. The expression of pro-inflammatory cytokines (IFN-β, IL-2, IL-6, IL-18, IL-1β and TNF-α) was significantly inhibited in pST3GAL2-overexpressing, PRRSV-infected cells and upregulated in PRRSV-infected pST3GAL2-knockout cells, while the pattern of expression of anti-inflammatory cytokines (IL-4 and IL-10) was diametrically opposite. Our results demonstrate that the regulation of pST3GAL2 plays an important role in PRRSV proliferation and functional alterations in virus-infected cells. These results contribute to our understanding of the role of β-galactoside α-2,3-sialyltransferase 2 in antiviral immunity.
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Affiliation(s)
- Xiaoyang Li
- School of Life Sciences, Tianjin University, No. 92, Weijin Road, Nankai District, Tianjin, 300072, China
| | - Yanyu Guo
- School of Life Sciences, Tianjin University, No. 92, Weijin Road, Nankai District, Tianjin, 300072, China
| | - Yinna Song
- School of Life Sciences, Tianjin University, No. 92, Weijin Road, Nankai District, Tianjin, 300072, China
| | - Ruiqi Sun
- School of Life Sciences, Tianjin University, No. 92, Weijin Road, Nankai District, Tianjin, 300072, China
| | - Min Zhu
- School of Life Sciences, Tianjin University, No. 92, Weijin Road, Nankai District, Tianjin, 300072, China
| | - Zheng Tan
- School of Life Sciences, Tianjin University, No. 92, Weijin Road, Nankai District, Tianjin, 300072, China
| | - Umm E Swaiba
- School of Life Sciences, Tianjin University, No. 92, Weijin Road, Nankai District, Tianjin, 300072, China
| | - Lilin Zhang
- School of Life Sciences, Tianjin University, No. 92, Weijin Road, Nankai District, Tianjin, 300072, China
| | - Jinhai Huang
- School of Life Sciences, Tianjin University, No. 92, Weijin Road, Nankai District, Tianjin, 300072, China.
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Krick S, Helton ES, Easter M, Bollenbecker S, Denson R, Zaharias R, Cochran P, Vang S, Harris E, Wells JM, Barnes JW. ST6GAL1 and α2-6 Sialylation Regulates IL-6 Expression and Secretion in Chronic Obstructive Pulmonary Disease. Front Immunol 2021; 12:693149. [PMID: 34290711 PMCID: PMC8287524 DOI: 10.3389/fimmu.2021.693149] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Accepted: 06/21/2021] [Indexed: 01/23/2023] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is a systemic disease strongly associated with cigarette smoking, airway inflammation, and acute disease exacerbations. Changes in terminal sialylation and fucosylation of asparagine (N)-linked glycans have been documented in COPD, but the role that glycosyltransferases may play in the regulation of N-linked glycans in COPD has not been fully elucidated. Recent studies suggest that modulation of ST6GAL1 (ST6 beta-galactoside alpha-2,6-sialyltransferase-1), which catalyzes terminal α2-6 sialylation of cellular proteins, may regulate inflammation and contribute to COPD phenotype(s). Interestingly, it has been previously demonstrated that ST6GAL1, a Golgi resident protein, can be proteolytically processed by BACE1 (beta-site amyloid precursor protein cleaving enzyme-1) to a circulating form that retains activity. In this study, we showed that loss of ST6GAL1 expression increased interleukin (IL)-6 expression and secretion in human bronchial epithelial cells (HBECs). Furthermore, exposure to cigarette smoke medium/extract (CSE) or BACE1 inhibition resulted in decreased ST6GAL1 secretion, reduced α2-6 sialylation, and increased IL-6 production in HBECs. Analysis of plasma ST6GAL1 levels in a small COPD patient cohort demonstrated an inverse association with prospective acute exacerbations of COPD (AECOPD), while IL-6 was positively associated. Altogether, these results suggest that reduced ST6GAL1 and α2-6 sialylation augments IL-6 expression/secretion in HBECs and is associated with poor clinical outcomes in COPD.
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Affiliation(s)
- Stefanie Krick
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, The University of Alabama at Birmingham, Birmingham, AL, United States
- Gregory Fleming James Cystic Fibrosis Research Center, The University of Alabama at Birmingham, Birmingham, AL, United States
| | - E. Scott Helton
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, The University of Alabama at Birmingham, Birmingham, AL, United States
| | - Molly Easter
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, The University of Alabama at Birmingham, Birmingham, AL, United States
| | - Seth Bollenbecker
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, The University of Alabama at Birmingham, Birmingham, AL, United States
| | - Rebecca Denson
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, The University of Alabama at Birmingham, Birmingham, AL, United States
| | - Rennan Zaharias
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, The University of Alabama at Birmingham, Birmingham, AL, United States
| | - Phillip Cochran
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, The University of Alabama at Birmingham, Birmingham, AL, United States
| | - Shia Vang
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, The University of Alabama at Birmingham, Birmingham, AL, United States
| | - Elex Harris
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, The University of Alabama at Birmingham, Birmingham, AL, United States
- Gregory Fleming James Cystic Fibrosis Research Center, The University of Alabama at Birmingham, Birmingham, AL, United States
| | - James M. Wells
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, The University of Alabama at Birmingham, Birmingham, AL, United States
- UAB Lung Health Center, Birmingham, AL, United States
- Birmingham VA Medical Center, Birmingham, AL, United States
| | - Jarrod W. Barnes
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, The University of Alabama at Birmingham, Birmingham, AL, United States
- Gregory Fleming James Cystic Fibrosis Research Center, The University of Alabama at Birmingham, Birmingham, AL, United States
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Lakshmanan I, Chaudhary S, Vengoji R, Seshacharyulu P, Rachagani S, Carmicheal J, Jahan R, Atri P, Chirravuri‐Venkata R, Gupta R, Marimuthu S, Perumal N, Rauth S, Kaur S, Mallya K, Smith LM, Lele SM, Ponnusamy MP, Nasser MW, Salgia R, Batra SK, Ganti AK. ST6GalNAc-I promotes lung cancer metastasis by altering MUC5AC sialylation. Mol Oncol 2021; 15:1866-1881. [PMID: 33792183 PMCID: PMC8253099 DOI: 10.1002/1878-0261.12956] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Revised: 02/19/2021] [Accepted: 03/30/2021] [Indexed: 12/17/2022] Open
Abstract
Lung cancer (LC) is the leading cause of cancer-related mortality. However, the molecular mechanisms associated with the development of metastasis are poorly understood. Understanding the biology of LC metastasis is critical to unveil the molecular mechanisms for designing targeted therapies. We developed two genetically engineered LC mouse models KrasG12D/+ ; Trp53R172H/+ ; Ad-Cre (KPA) and KrasG12D/+ ; Ad-Cre (KA). Survival analysis showed significantly (P = 0.0049) shorter survival in KPA tumor-bearing mice as compared to KA, suggesting the aggressiveness of the model. Our transcriptomic data showed high expression of N-acetylgalactosaminide alpha-2, 6-sialyltransferase 1 (St6galnac-I) in KPA compared to KA tumors. ST6GalNAc-I is an O-glycosyltransferase, which catalyzes the addition of sialic acid to the initiating GalNAc residues forming sialyl Tn (STn) on glycoproteins, such as mucins. Ectopic expression of species-specific p53 mutants in the syngeneic mouse and human LC cells led to increased cell migration and high expression of ST6GalNAc-I, STn, and MUC5AC. Immunoprecipitation of MUC5AC in the ectopically expressing p53R175H cells exhibited higher affinity toward STn. In addition, ST6GalNAc-I knockout (KO) cells also showed decreased migration, possibly due to reduced glycosylation of MUC5AC as observed by low STn on the glycoprotein. Interestingly, ST6GalNAc-I KO cells injected mice developed less liver metastasis (P = 0.01) compared to controls, while colocalization of MUC5AC and STn was observed in the liver metastatic tissues of control mice. Collectively, our findings support the hypothesis that mutant p53R175H mediates ST6GalNAc-I expression, leading to the sialyation of MUC5AC, and thus contribute to LC liver metastasis.
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Affiliation(s)
| | - Sanjib Chaudhary
- Department of Biochemistry and Molecular BiologyUniversity of Nebraska Medical CenterOmahaNEUSA
| | - Raghupathy Vengoji
- Department of Biochemistry and Molecular BiologyUniversity of Nebraska Medical CenterOmahaNEUSA
| | | | - Satyanarayana Rachagani
- Department of Biochemistry and Molecular BiologyUniversity of Nebraska Medical CenterOmahaNEUSA
| | - Joseph Carmicheal
- Department of Biochemistry and Molecular BiologyUniversity of Nebraska Medical CenterOmahaNEUSA
| | - Rahat Jahan
- Department of Biochemistry and Molecular BiologyUniversity of Nebraska Medical CenterOmahaNEUSA
| | - Pranita Atri
- Department of Biochemistry and Molecular BiologyUniversity of Nebraska Medical CenterOmahaNEUSA
| | | | - Rohitesh Gupta
- Department of Biochemistry and Molecular BiologyUniversity of Nebraska Medical CenterOmahaNEUSA
| | - Saravanakumar Marimuthu
- Department of Biochemistry and Molecular BiologyUniversity of Nebraska Medical CenterOmahaNEUSA
| | - Naveenkumar Perumal
- Department of Biochemistry and Molecular BiologyUniversity of Nebraska Medical CenterOmahaNEUSA
| | - Sanchita Rauth
- Department of Biochemistry and Molecular BiologyUniversity of Nebraska Medical CenterOmahaNEUSA
| | - Sukhwinder Kaur
- Department of Biochemistry and Molecular BiologyUniversity of Nebraska Medical CenterOmahaNEUSA
| | - Kavita Mallya
- Department of Biochemistry and Molecular BiologyUniversity of Nebraska Medical CenterOmahaNEUSA
| | - Lynette M. Smith
- Department of BiostatisticsCollege of Public HealthUniversity of Nebraska Medical CenterOmahaNEUSA
| | - Subodh M. Lele
- Department of Pathology and MicrobiologyUniversity of Nebraska Medical CenterOmahaNEUSA
| | - Moorthy P. Ponnusamy
- Department of Biochemistry and Molecular BiologyUniversity of Nebraska Medical CenterOmahaNEUSA
- Eppley Institute for Research in Cancer and Allied DiseasesOmahaNEUSA
- Fred & Pamela Buffett Cancer CenterUniversity of Nebraska Medical CenterOmahaNEUSA
| | - Mohd W. Nasser
- Department of Biochemistry and Molecular BiologyUniversity of Nebraska Medical CenterOmahaNEUSA
- Fred & Pamela Buffett Cancer CenterUniversity of Nebraska Medical CenterOmahaNEUSA
| | - Ravi Salgia
- Department of Medical Oncology and Therapeutics ResearchCity of Hope Comprehensive Cancer CenterBeckman Research InstituteDuarteCAUSA
| | - Surinder K. Batra
- Department of Biochemistry and Molecular BiologyUniversity of Nebraska Medical CenterOmahaNEUSA
- Eppley Institute for Research in Cancer and Allied DiseasesOmahaNEUSA
- Fred & Pamela Buffett Cancer CenterUniversity of Nebraska Medical CenterOmahaNEUSA
| | - Apar Kishor Ganti
- Department of Biochemistry and Molecular BiologyUniversity of Nebraska Medical CenterOmahaNEUSA
- Fred & Pamela Buffett Cancer CenterUniversity of Nebraska Medical CenterOmahaNEUSA
- Department of Internal MedicineVA Nebraska Western Iowa Health Care SystemUniversity of Nebraska Medical CenterOmahaNEUSA
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45
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Tian X, Wang X, Cui Z, Liu J, Huang X, Shi C, Zhang M, Liu T, Du X, Li R, Huang L, Gong D, Tian R, Cao C, Jin P, Zeng Z, Pan G, Xia M, Zhang H, Luo B, Xie Y, Li X, Li T, Wu J, Zhang Q, Chen G, Hu Z. A Fifteen-Gene Classifier to Predict Neoadjuvant Chemotherapy Responses in Patients with Stage IB to IIB Squamous Cervical Cancer. Adv Sci (Weinh) 2021; 8:2001978. [PMID: 34026427 PMCID: PMC8132153 DOI: 10.1002/advs.202001978] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 02/01/2021] [Indexed: 05/09/2023]
Abstract
Neoadjuvant chemotherapy (NACT) remains an attractive alternative for controlling locally advanced cervical cancer. However, approximately 15-34% of women do not respond to induction therapy. To develop a risk stratification tool, 56 patients with stage IB-IIB cervical cancer are included in 2 research centers from the discovery cohort. Patient-specific somatic mutations led to NACT non-responsiveness are identified by whole-exome sequencing. Next, CRISPR/Cas9-based library screenings are performed based on these genes to confirm their biological contribution to drug resistance. A 15-gene classifier is developed by generalized linear regression analysis combined with the logistic regression model. In an independent validation cohort of 102 patients, the classifier showed good predictive ability with an area under the curve of 0.80 (95% confidence interval (CI), 0.69-0.91). Furthermore, the 15-gene classifier is significantly associated with patient responsiveness to NACT in both univariate (odds ratio, 10.8; 95% CI, 3.55-32.86; p = 2.8 × 10-5) and multivariate analysis (odds ratio, 17.34; 95% CI, 4.04-74.40; p = 1.23 × 10-4) in the validation set. In conclusion, the 15-gene classifier can accurately predict the clinical response to NACT before treatment, representing a promising approach for guiding the selection of appropriate treatment strategies for locally advanced cervical cancer.
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Affiliation(s)
- Xun Tian
- Department of Obstetrics and GynecologyTongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyJiefang Avenue 1095#WuhanHubei430030China
- Department of Obstetrics and GynecologyAcademician expert workstation, The Central Hospital of WuhanTongji Medical CollegeHuazhong University of Science and TechnologyJiefang Avenue 1095#WuhanHubei430030China
| | - Xin Wang
- Department of Obstetrics and GynecologyTongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyJiefang Avenue 1095#WuhanHubei430030China
| | - Zifeng Cui
- Department of Gynecological and OncologyThe First Affiliated Hospital of Sun Yat‐sen UniversityZhongshan 2nd Road, YuexiuGuangzhouGuangdong510080China
| | - Jia Liu
- Department of Obstetrics and GynecologyTongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyJiefang Avenue 1095#WuhanHubei430030China
| | - Xiaoyuan Huang
- Department of Obstetrics and GynecologyTongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyJiefang Avenue 1095#WuhanHubei430030China
| | - Caixia Shi
- Department of Gynecological and OncologyHunan Cancer HospitalThe Affiliated Cancer Hospital of Xiangya School of MedicineCentral South UniversityJiefang Avenue 1095#WuhanHubei430030China
| | - Min Zhang
- NGS Research CenterNovogene Co, LtdBuilding 301, Zone A10 JiuxianqiaoBeijing100015China
| | - Ting Liu
- Department of Obstetrics and GynecologyAcademician expert workstation, The Central Hospital of WuhanTongji Medical CollegeHuazhong University of Science and TechnologyJiefang Avenue 1095#WuhanHubei430030China
| | - Xiaofang Du
- Department of Obstetrics and GynecologyAcademician expert workstation, The Central Hospital of WuhanTongji Medical CollegeHuazhong University of Science and TechnologyJiefang Avenue 1095#WuhanHubei430030China
| | - Rui Li
- Department of Obstetrics and GynecologyAcademician expert workstation, The Central Hospital of WuhanTongji Medical CollegeHuazhong University of Science and TechnologyJiefang Avenue 1095#WuhanHubei430030China
| | - Lei Huang
- Department of Obstetrics and GynecologyAcademician expert workstation, The Central Hospital of WuhanTongji Medical CollegeHuazhong University of Science and TechnologyJiefang Avenue 1095#WuhanHubei430030China
| | - Danni Gong
- Department of Obstetrics and GynecologyAcademician expert workstation, The Central Hospital of WuhanTongji Medical CollegeHuazhong University of Science and TechnologyJiefang Avenue 1095#WuhanHubei430030China
| | - Rui Tian
- Department of Gynecological and OncologyThe First Affiliated Hospital of Sun Yat‐sen UniversityZhongshan 2nd Road, YuexiuGuangzhouGuangdong510080China
| | - Chen Cao
- Department of Obstetrics and GynecologyAcademician expert workstation, The Central Hospital of WuhanTongji Medical CollegeHuazhong University of Science and TechnologyJiefang Avenue 1095#WuhanHubei430030China
| | - Ping Jin
- Department of Obstetrics and GynecologyAcademician expert workstation, The Central Hospital of WuhanTongji Medical CollegeHuazhong University of Science and TechnologyJiefang Avenue 1095#WuhanHubei430030China
| | - Zhen Zeng
- Department of Obstetrics and GynecologyAcademician expert workstation, The Central Hospital of WuhanTongji Medical CollegeHuazhong University of Science and TechnologyJiefang Avenue 1095#WuhanHubei430030China
| | - Guangxin Pan
- Department of Obstetrics and GynecologyAcademician expert workstation, The Central Hospital of WuhanTongji Medical CollegeHuazhong University of Science and TechnologyJiefang Avenue 1095#WuhanHubei430030China
| | - Meng Xia
- Department of Obstetrics and GynecologyAcademician expert workstation, The Central Hospital of WuhanTongji Medical CollegeHuazhong University of Science and TechnologyJiefang Avenue 1095#WuhanHubei430030China
| | - Hongfeng Zhang
- Department of PathologyThe Central Hospital of WuhanTongji Medical CollegeHuazhong University of Science and TechnologyShengli Street 26#, Jiang'an DistrictWuhanHubei430030China
| | - Bo Luo
- Department of PathologyThe Central Hospital of WuhanTongji Medical CollegeHuazhong University of Science and TechnologyShengli Street 26#, Jiang'an DistrictWuhanHubei430030China
| | - Yonghui Xie
- Department of PathologyThe Central Hospital of WuhanTongji Medical CollegeHuazhong University of Science and TechnologyShengli Street 26#, Jiang'an DistrictWuhanHubei430030China
| | - Xiaoming Li
- Department of Obstetrics and GynecologyTongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyJiefang Avenue 1095#WuhanHubei430030China
| | - Tianye Li
- Department of Obstetrics and GynecologyTongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyJiefang Avenue 1095#WuhanHubei430030China
| | - Jun Wu
- NGS Research CenterNovogene Co, LtdBuilding 301, Zone A10 JiuxianqiaoBeijing100015China
| | - Qinghua Zhang
- Department of Obstetrics and GynecologyAcademician expert workstation, The Central Hospital of WuhanTongji Medical CollegeHuazhong University of Science and TechnologyJiefang Avenue 1095#WuhanHubei430030China
| | - Gang Chen
- Department of Obstetrics and GynecologyTongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyJiefang Avenue 1095#WuhanHubei430030China
| | - Zheng Hu
- Department of Obstetrics and GynecologyTongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyJiefang Avenue 1095#WuhanHubei430030China
- Department of Obstetrics and GynecologyAcademician expert workstation, The Central Hospital of WuhanTongji Medical CollegeHuazhong University of Science and TechnologyJiefang Avenue 1095#WuhanHubei430030China
- Department of Gynecological and OncologyThe First Affiliated Hospital of Sun Yat‐sen UniversityZhongshan 2nd Road, YuexiuGuangzhouGuangdong510080China
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Büll C, Nason R, Sun L, Van Coillie J, Madriz Sørensen D, Moons SJ, Yang Z, Arbitman S, Fernandes SM, Furukawa S, McBride R, Nycholat CM, Adema GJ, Paulson JC, Schnaar RL, Boltje TJ, Clausen H, Narimatsu Y. Probing the binding specificities of human Siglecs by cell-based glycan arrays. Proc Natl Acad Sci U S A 2021; 118:e2026102118. [PMID: 33893239 PMCID: PMC8092401 DOI: 10.1073/pnas.2026102118] [Citation(s) in RCA: 68] [Impact Index Per Article: 22.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Siglecs are a family of sialic acid-binding receptors expressed by cells of the immune system and a few other cell types capable of modulating immune cell functions upon recognition of sialoglycan ligands. While human Siglecs primarily bind to sialic acid residues on diverse types of glycoproteins and glycolipids that constitute the sialome, their fine binding specificities for elaborated complex glycan structures and the contribution of the glycoconjugate and protein context for recognition of sialoglycans at the cell surface are not fully elucidated. Here, we generated a library of isogenic human HEK293 cells with combinatorial loss/gain of individual sialyltransferase genes and the introduction of sulfotransferases for display of the human sialome and to dissect Siglec interactions in the natural context of glycoconjugates at the cell surface. We found that Siglec-4/7/15 all have distinct binding preferences for sialylated GalNAc-type O-glycans but exhibit selectivity for patterns of O-glycans as presented on distinct protein sequences. We discovered that the sulfotransferase CHST1 drives sialoglycan binding of Siglec-3/8/7/15 and that sulfation can impact the preferences for binding to O-glycan patterns. In particular, the branched Neu5Acα2-3(6-O-sulfo)Galβ1-4GlcNAc (6'-Su-SLacNAc) epitope was discovered as the binding epitope for Siglec-3 (CD33) implicated in late-onset Alzheimer's disease. The cell-based display of the human sialome provides a versatile discovery platform that enables dissection of the genetic and biosynthetic basis for the Siglec glycan interactome and other sialic acid-binding proteins.
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Affiliation(s)
- Christian Büll
- Copenhagen Center for Glycomics, Department of Cellular and Molecular Medicine, Faculty of Health Sciences, University of Copenhagen, DK-2200 Copenhagen, Denmark
| | - Rebecca Nason
- Copenhagen Center for Glycomics, Department of Cellular and Molecular Medicine, Faculty of Health Sciences, University of Copenhagen, DK-2200 Copenhagen, Denmark
| | - Lingbo Sun
- Copenhagen Center for Glycomics, Department of Cellular and Molecular Medicine, Faculty of Health Sciences, University of Copenhagen, DK-2200 Copenhagen, Denmark
| | - Julie Van Coillie
- Copenhagen Center for Glycomics, Department of Cellular and Molecular Medicine, Faculty of Health Sciences, University of Copenhagen, DK-2200 Copenhagen, Denmark
| | - Daniel Madriz Sørensen
- Copenhagen Center for Glycomics, Department of Cellular and Molecular Medicine, Faculty of Health Sciences, University of Copenhagen, DK-2200 Copenhagen, Denmark
| | - Sam J Moons
- Cluster for Molecular Chemistry, Institute for Molecules and Materials, Radboud University Nijmegen, 6525 AJ Nijmegen, The Netherlands
| | - Zhang Yang
- Copenhagen Center for Glycomics, Department of Cellular and Molecular Medicine, Faculty of Health Sciences, University of Copenhagen, DK-2200 Copenhagen, Denmark
| | - Steven Arbitman
- Department of Pharmacology, Johns Hopkins University School of Medicine, Baltimore, MD 21205
| | - Steve M Fernandes
- Department of Pharmacology, Johns Hopkins University School of Medicine, Baltimore, MD 21205
| | - Sanae Furukawa
- Copenhagen Center for Glycomics, Department of Cellular and Molecular Medicine, Faculty of Health Sciences, University of Copenhagen, DK-2200 Copenhagen, Denmark
| | - Ryan McBride
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA 92037
| | - Corwin M Nycholat
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA 92037
| | - Gosse J Adema
- Department of Radiation Oncology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, 6525 GA Nijmegen, The Netherlands
| | - James C Paulson
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA 92037
| | - Ronald L Schnaar
- Department of Pharmacology, Johns Hopkins University School of Medicine, Baltimore, MD 21205
| | - Thomas J Boltje
- Cluster for Molecular Chemistry, Institute for Molecules and Materials, Radboud University Nijmegen, 6525 AJ Nijmegen, The Netherlands
| | - Henrik Clausen
- Copenhagen Center for Glycomics, Department of Cellular and Molecular Medicine, Faculty of Health Sciences, University of Copenhagen, DK-2200 Copenhagen, Denmark;
| | - Yoshiki Narimatsu
- Copenhagen Center for Glycomics, Department of Cellular and Molecular Medicine, Faculty of Health Sciences, University of Copenhagen, DK-2200 Copenhagen, Denmark;
- GlycoDisplay ApS, Copenhagen, 2100 N, Denmark
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47
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Yoon JY, de Kock L, Stewart CJR, McCluggage WG, Foulkes WD, Clarke BA, Rouzbahman M. Endometrial Stem/Progenitor cell (ES/PC) Marker Expression Profile in Adenosarcoma and Endometrial Stromal Sarcoma. Cancer Treat Res Commun 2021; 27:100363. [PMID: 33838572 DOI: 10.1016/j.ctarc.2021.100363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 02/28/2021] [Accepted: 03/23/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND The uterus is one of the most dynamic organs in the human body, and this dynamic homeostasis is supported by endometrial stem/progenitor cells (ES/PCs), which are heterogeneous in their phenotype and degree of differentiation. ES/PCs are generally localized in the endometrial stroma, the site of origin for adenosarcoma and endometrial stromal sarcoma (ESS). Subsets of ESSs and adenosarcomas harbor SUZ12 or DICER1 gene alterations, two genes with roles in embryonic stem cell biology. However, the possible contribution of ES/PCs to tumorigenesis is unexplored. METHOD We examined the expression of eleven ES/PC markers, along with three proteins expressed in the mature endometrial stroma (ER, PR and CD10) in 60 uterine tumors (24 low-, 11 high-grade ESS, 25 adenosarcomas). Protein expression profiles were assessed by unsupervised hierarchical clustering. miRNA expression profiles were examined in a subset of adenosarcoma with/without DICER1 mutations, using the NanoString platform. RESULTS ES/PC markers were variably expressed, and the tumors exhibited limited immunophenotypic resemblance to different ES/PCs. Within the ESSs, the ES/PC marker clustering pattern was prognostic for both overall and disease-free survival. Comparing adenosarcomas and ESSs, most high-grade ESSs clustered with one another, while low-grade ESSs and adenosarcomas tended to cluster with one another. Among the adenosarcomas, the miRNA expression profiles were varied with respect to the DICER1 mutation status, with pathway analysis pointing to dysregulated signal transduction and stem cell biology. CONCLUSIONS ESSs and adenosarcomas exhibit varying immunophenotypic resemblance to ES/PCs. These expression profiles have prognostic implications and may be genetically driven.
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Affiliation(s)
- Ju-Yoon Yoon
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada; Department of Pathology, St. Michael's Hospital, Toronto, ON, Canada.
| | - Leanne de Kock
- Department of Human Genetics, McGill University, Montréal, Québec, Canada; Lady Davis Institute, Segal Cancer Centre, Jewish General Hospital, Montréal, Québec, Canada; Research Institute of the McGill University Health Centre, Montréal, Québec, Canada
| | - Colin J R Stewart
- School for Women's and Infants' Health, University of Western Australia, Perth, WA, Australia
| | - W Glenn McCluggage
- Department of Pathology, Belfast Health and Social Care Trust, Belfast, United Kingdom
| | - William D Foulkes
- Department of Human Genetics, McGill University, Montréal, Québec, Canada; Lady Davis Institute, Segal Cancer Centre, Jewish General Hospital, Montréal, Québec, Canada; Research Institute of the McGill University Health Centre, Montréal, Québec, Canada
| | - Blaise A Clarke
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada; Department of Pathology, Toronto General Hospital, Toronto, ON, Canada
| | - Marjan Rouzbahman
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada; Department of Pathology, Toronto General Hospital, Toronto, ON, Canada
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De Stefano A, Caporali S, Di Daniele N, Rovella V, Cardillo C, Schinzari F, Minieri M, Pieri M, Candi E, Bernardini S, Tesauro M, Terrinoni A. Anti-Inflammatory and Proliferative Properties of Luteolin-7-O-Glucoside. Int J Mol Sci 2021; 22:1321. [PMID: 33525692 PMCID: PMC7865871 DOI: 10.3390/ijms22031321] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 01/25/2021] [Accepted: 01/26/2021] [Indexed: 12/11/2022] Open
Abstract
Flavonoids display a broad range of structures and are responsible for the major organoleptic characteristics of plant-derived foods and beverages. Recent data showed their activity, and in particular of luteolin-7-O-glucoside (LUT-7G), in reduction of oxidative stress and inflammatory mechanisms in different physiological systems. In this paper, we tried to elucidate how LUT-7G could exert both antioxidant and anti-inflammatory effects in endothelial cells cultured in vitro. Here, we showed that LUT-7G is able to inhibit the STAT3 pathway, to have an antiproliferative action, and an important antioxidant property in HUVEC cells. These properties are exerted by the flavone in endothelial through the transcriptional repression of a number of inflammatory cytokines and their receptors, and by the inhibition of ROS generation. ROS and STAT3 activation has been correlated with the production of oxysterols and other hydroxylated fatty acids, and they have been recognized important as players of atherogenesis and cardiocirculatory system diseases. The analysis of the general production pathway of these hydroxylated species, showed a strong decrease of cholesterol hydroxylated species such as 7-alpha-hydroxicholesterol, 7-beta-hydroxicholesterol by the treatment with LUT-7G. This confirms the anti-inflammatory properties of LUT-7G also in the endothelial district, showing for the first time the molecular pathway that verify previous postulated cardiovascular benefits of this flavone.
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Affiliation(s)
- Alessandro De Stefano
- Centre of Space Biomedicine, Department of Systems Medicine, University of Rome Tor Vergata, 00133 Rome, Italy; (A.D.S.); (N.D.D.); (V.R.); (M.T.)
| | - Sabrina Caporali
- Department of Industrial Engineering, University of Rome Tor Vergata, 00133 Rome, Italy;
| | - Nicola Di Daniele
- Centre of Space Biomedicine, Department of Systems Medicine, University of Rome Tor Vergata, 00133 Rome, Italy; (A.D.S.); (N.D.D.); (V.R.); (M.T.)
| | - Valentina Rovella
- Centre of Space Biomedicine, Department of Systems Medicine, University of Rome Tor Vergata, 00133 Rome, Italy; (A.D.S.); (N.D.D.); (V.R.); (M.T.)
| | - Carmine Cardillo
- Department of Clinical Sciences and Translational Medicine, Cattolica University of Rome, Via Montpellier, 1, 00133 Rome, Italy;
- Internal Medicine, Policlinico A. Gemelli Istituto di Ricovero e Cura a Carattere Scientifico, 00133 Rome, Italy;
| | - Francesca Schinzari
- Internal Medicine, Policlinico A. Gemelli Istituto di Ricovero e Cura a Carattere Scientifico, 00133 Rome, Italy;
| | - Marilena Minieri
- Department of Experimental Medicine, University of Rome Tor Vergata, Via Montpellier, 1, 00133 Rome, Italy; (M.M.); (M.P.); (E.C.); (S.B.)
| | - Massimo Pieri
- Department of Experimental Medicine, University of Rome Tor Vergata, Via Montpellier, 1, 00133 Rome, Italy; (M.M.); (M.P.); (E.C.); (S.B.)
| | - Eleonora Candi
- Department of Experimental Medicine, University of Rome Tor Vergata, Via Montpellier, 1, 00133 Rome, Italy; (M.M.); (M.P.); (E.C.); (S.B.)
- Laboratory of Biochemistry, IDI-IRCCS Fondazione Luigi Maria Monti, Via Monti di Creta 104, 00167 Rome, Italy
| | - Sergio Bernardini
- Department of Experimental Medicine, University of Rome Tor Vergata, Via Montpellier, 1, 00133 Rome, Italy; (M.M.); (M.P.); (E.C.); (S.B.)
| | - Manfredi Tesauro
- Centre of Space Biomedicine, Department of Systems Medicine, University of Rome Tor Vergata, 00133 Rome, Italy; (A.D.S.); (N.D.D.); (V.R.); (M.T.)
| | - Alessandro Terrinoni
- Department of Experimental Medicine, University of Rome Tor Vergata, Via Montpellier, 1, 00133 Rome, Italy; (M.M.); (M.P.); (E.C.); (S.B.)
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Abukar T, Rahmani S, Thompson NK, Antonescu CN, Wakarchuk WW. Development of BODIPY labelled sialic acids as sialyltransferase substrates for direct detection of terminal galactose on N- and O-linked glycans. Carbohydr Res 2021; 500:108249. [PMID: 33545445 DOI: 10.1016/j.carres.2021.108249] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 01/19/2021] [Accepted: 01/20/2021] [Indexed: 12/13/2022]
Abstract
Glycans on proteins and cell surfaces are useful biomarkers for determining functional interactions with glycan binding proteins, potential disease states, or indeed level of differentiation. The ability to rapidly and sensitively detect or tag specific glycans on proteins provides a diagnostic tool with wide application in chemical glycobiology. The monosaccharide N-acetylneuraminic acid (sialic acid) is a key player in these interactions and the manipulation and control of sialylation levels has been an important research focus, particularly in the development of therapeutic proteins. Using sialyltransferases to tag specific glycans provides a rapid means of determining what types of glycans are present. We have synthesized two variants of sialic acid carrying the fluorophore BODIPY (4,4 -Difluoro-4-boro-3a,4a-diaza-s-indacene) and examined its use with several different sialyltransferases on a variety of protein substrates and cell surface glycans. Our data show that there are significant differences between various enzymes ability to transfer the labelled sialic acids, and that the type of N-glycan and target protein strongly influences this activity.
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Affiliation(s)
- Tasnim Abukar
- Department of Chemistry and Biology, Ryerson University, 661 University Ave 11th Floor, Toronto, ON M5G1M1, Canada; Current Address. PlantForm Corporation, 1920 Yonge Street, Suite 200, Toronto, ON M4S3E2, Canada
| | - Sadia Rahmani
- Department of Chemistry and Biology, Ryerson University, 661 University Ave 11th Floor, Toronto, ON M5G1M1, Canada
| | - Nicole K Thompson
- Department of Biological Sciences, University of Alberta, 11455 Saskatchewan Drive Edmonton AB, T6G 2E9, Canada
| | - Costin N Antonescu
- Department of Chemistry and Biology, Ryerson University, 661 University Ave 11th Floor, Toronto, ON M5G1M1, Canada
| | - Warren W Wakarchuk
- Department of Chemistry and Biology, Ryerson University, 661 University Ave 11th Floor, Toronto, ON M5G1M1, Canada; Department of Biological Sciences, University of Alberta, 11455 Saskatchewan Drive Edmonton AB, T6G 2E9, Canada.
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50
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Shimizu T, Nagane M, Suzuki M, Yamauchi A, Kato K, Kawashima N, Nemoto Y, Maruo T, Kawakami Y, Yamashita T. Tumor hypoxia regulates ganglioside GM3 synthase, which contributes to oxidative stress resistance in malignant melanoma. Biochim Biophys Acta Gen Subj 2020; 1864:129723. [PMID: 32861756 DOI: 10.1016/j.bbagen.2020.129723] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 08/24/2020] [Accepted: 08/25/2020] [Indexed: 11/16/2022]
Abstract
BACKGROUND Tumor hypoxia drastically changes cancer phenotypes, including angiogenesis, invasion, and cell death. Gangliosides are sialic acid-containing glycosphingolipids that are ubiquitously distributed on plasma membranes and are involved in many biological processes, such as the endoplasmic reticulum stress response and apoptosis. In this study, we investigated the regulation and function of glycosphingolipids, which associate with lipid raft on mammalian plasma membranes under hypoxic condition. METHODS B16F10 melanoma cells were subjected to chemical hypoxia and low pO2 condition, and the effect of hypoxia on expression of GM3 synthase were analyzed. Cellular resistance to oxidative stress was analyzed in GM3S-KO B16F10 cells. RESULTS Hypoxia treatment decreased the expression of ganglioside GM3 synthase (GM3S; ST3GAL5), which synthesizes the common substrate of ganglioside biosynthesis. RNA interference of hypoxia inducible factor 1 subunit alpha (HIF-1α) inhibited hypoxia-induced GM3S suppression. Additionally, GM3S deficiency increased cellular resistance to oxidative stress and radiation therapy via upregulation of ERK. CONCLUSIONS Altered synthesis of glycosphingolipids downstream of HIF-1α signaling increased the resistance of melanoma cells to oxidative stress. Furthermore, GM3 has important role on cellular adaptive response to hypoxia. GENERAL SIGNIFICANCE This study indicates that tumor hypoxia regulates therapy-resistance via modulation of ganglioside synthesis.
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Affiliation(s)
- Takuto Shimizu
- Laboratory of Biochemistry, School of Veterinary Medicine, Azabu University, Japan
| | - Masaki Nagane
- Laboratory of Biochemistry, School of Veterinary Medicine, Azabu University, Japan
| | - Mira Suzuki
- Laboratory of Biochemistry, School of Veterinary Medicine, Azabu University, Japan
| | - Akinori Yamauchi
- Laboratory of Biochemistry, School of Veterinary Medicine, Azabu University, Japan
| | - Kazuhiro Kato
- Laboratory of Biochemistry, School of Veterinary Medicine, Azabu University, Japan
| | - Nagako Kawashima
- Department of Nephrology, Kitasato University School of Medicine, Japan
| | - Yuki Nemoto
- Teaching Animal Hospital, Azabu University, Japan
| | - Takuya Maruo
- Teaching Animal Hospital, Azabu University, Japan
| | - Yasushi Kawakami
- Department of Life and Environmental Sciences, Azabu University, Japan
| | - Tadashi Yamashita
- Laboratory of Biochemistry, School of Veterinary Medicine, Azabu University, Japan.
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