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Furukawa K, Takamiya K, Ohmi Y, Bhuiyan RH, Tajima O, Furukawa K. Disordered testosterone transport in mice lacking the ganglioside GM2/GD2 synthase gene. FEBS Open Bio 2023; 13:1615-1624. [PMID: 36999634 PMCID: PMC10476564 DOI: 10.1002/2211-5463.13603] [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: 02/15/2023] [Revised: 03/10/2023] [Accepted: 03/29/2023] [Indexed: 04/01/2023] Open
Abstract
Genetic disruption of glycosyltransferases has provided clear information on the roles of their reaction products in the body. Our group has studied the function of glycosphingolipids by genetic engineering of glycosyltransferases in cell culture and in mice, which has demonstrated both expected and unexpected results. Among these findings, aspermatogenesis in ganglioside GM2/GD2 synthase knockout mice was one of the most surprising and intriguing results. There were no sperms in testis, and multinuclear giant cells were detected instead of spermatids. Although serum levels of testosterone in the male mice were extremely low, testosterone accumulated in the interstitial tissues, including Leydig cells, and seemed not to be transferred into the seminiferous tubules or vascular cavity from Leydig cells. This was considered to be the cause of aspermatogenesis and low serum levels of testosterone. Patients with a mutant GM2/GD2 synthase gene (SPG26) showed similar clinical signs, not only in terms of the neurological aspects, but also in the male reproductive system. The mechanisms for testosterone transport by gangliosides are discussed here based on our own results and reports from other laboratories.
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Affiliation(s)
- Koichi Furukawa
- Department of Biomedical SciencesChubu University College of Life and Health SciencesKasugaiJapan
- Department of Molecular Biology and BiochemistryNagoya University Graduate School of MedicineJapan
| | - Kogo Takamiya
- Department of NeuroscienceUniversity of Miyazaki Faculty of MedicineJapan
| | - Yuhsuke Ohmi
- Department of Clinical EngineeringChubu University College of Life and Health SciencesKasugaiJapan
| | - Robiul H. Bhuiyan
- Department of Biomedical SciencesChubu University College of Life and Health SciencesKasugaiJapan
- Department of Biochemistry and Molecular BiologyUniversity of ChittagongChittagongBangladesh
| | - Orie Tajima
- Department of Biomedical SciencesChubu University College of Life and Health SciencesKasugaiJapan
| | - Keiko Furukawa
- Department of Biomedical SciencesChubu University College of Life and Health SciencesKasugaiJapan
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2
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Yesmin F, Furukawa K, Kambe M, Ohmi Y, Bhuiyan RH, Hasnat MA, Mizutani M, Tajima O, Hashimoto N, Tsuchida A, Kaneko K, Furukawa K. Extracellular vesicles released from ganglioside GD2-expressing melanoma cells enhance the malignant properties of GD2-negative melanomas. Sci Rep 2023; 13:4987. [PMID: 36973292 PMCID: PMC10042834 DOI: 10.1038/s41598-023-31216-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Accepted: 03/08/2023] [Indexed: 03/29/2023] Open
Abstract
Exosomes (small extracellular vesicles: EVs) have attracted increasing attention from basic scientists and clinicians since they play important roles in cell-to-cell communication in various biological processes. Various features of EVs have been elucidated regarding their contents, generation and secretion mechanisms, and functions in inflammation, regeneration, and cancers. These vesicles are reported to contain proteins, RNAs, microRNAs, DNAs, and lipids. Although the roles of individual components have been rigorously studied, the presence and roles of glycans in EVs have rarely been reported. In particular, glycosphingolipids in EVs have not been investigated to date. In this study, the expression and function of a representative cancer-associated ganglioside, GD2, in malignant melanomas was investigated. Generally, cancer-associated gangliosides have been shown to enhance malignant properties and signals in cancers. Notably, EVs derived from GD2-expressing melanomas enhanced the malignant phenotypes of GD2-negative melanomas, such as cell growth, invasion, and cell adhesion, in a dose-dependent manner. The EVs also induced increased phosphorylation of signaling molecules such as EGF receptor and focal adhesion kinase. These results suggest that EVs released from cancer-associated ganglioside-expressing cells exert many functions that have been reported as a function of these gangliosides and regulate microenvironments, including total aggravation of heterogeneous cancer tissues, leading to more malignant and advanced cancer types.
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Affiliation(s)
- Farhana Yesmin
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Matsumoto 1200, Kasugai, Aichi, 487-8501, Japan
| | - Keiko Furukawa
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Matsumoto 1200, Kasugai, Aichi, 487-8501, Japan
| | - Mariko Kambe
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Matsumoto 1200, Kasugai, Aichi, 487-8501, Japan
| | - Yuhsuke Ohmi
- Department of Clinical Engineering, Chubu University College of Life and Health Sciences, Matsumoto 1200, Kasugai, Aichi, 487-8501, Japan
| | - Robiul Hasan Bhuiyan
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Matsumoto 1200, Kasugai, Aichi, 487-8501, Japan
- Department of Biochemistry and Molecular Biology, University of Chittagong, 4331, Chittagong, Bangladesh
| | - Mohammad Abul Hasnat
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Matsumoto 1200, Kasugai, Aichi, 487-8501, Japan
| | - Momoka Mizutani
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Matsumoto 1200, Kasugai, Aichi, 487-8501, Japan
| | - Orie Tajima
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Matsumoto 1200, Kasugai, Aichi, 487-8501, Japan
| | - Noboru Hashimoto
- Department of Tissue Regeneration, Tokushima University School of Dentistry, Kuramoto-Cho 3, Tokushima, 770-8504, Japan
| | - Akiko Tsuchida
- Laboratory of Glyco- Bioengineering, The Noguchi Institute, Itabashi, 173-0003, Japan
| | - Kei Kaneko
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Matsumoto 1200, Kasugai, Aichi, 487-8501, Japan
| | - Koichi Furukawa
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Matsumoto 1200, Kasugai, Aichi, 487-8501, Japan.
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3
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Tajima O, Fujita Y, Ohmi Y, Furukawa K, Furukawa K. Ganglioside GM3 prevents high fat diet-induced hepatosteatosis via attenuated insulin signaling pathway. PLoS One 2023; 18:e0281414. [PMID: 36827398 PMCID: PMC9956598 DOI: 10.1371/journal.pone.0281414] [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] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Accepted: 01/24/2023] [Indexed: 02/26/2023] Open
Abstract
Gangliosides, sialic acid-containing glycosphingolipids, are widely involved in regulations of signal transductions to control cellular functions. It has been suggested that GM3, the simplest structure among gangliosides, is involved in insulin resistance, whereas it remains unclear whether insulin signaling diminished by GM3 actually aggravates the pathological conditions in metabolic disorders. Moreover, the functional roles of gangliosides in the regulation of insulin signaling have not yet been fully elucidated in liver or hepatocytes despite that it is one of the major insulin-sensitive organs. To understand physiological roles of GM3 in metabolic homeostasis in liver, we conducted a high fat diet (HFD) loading experiment using double knockout (DKO) mice of GM2/GD2 synthase and GD3 synthase, which lack all gangliosides except GM3, as well as wild-type (WT) mice. DKO mice were strikingly resistant to HFD-induced hepatosteatosis, and hepatic lipogenesis-related molecules including insulin signaling components were down-regulated in HFD-fed DKO. Furthermore, we established primary hepatocyte cultures from DKO and WT mice, and examined their responses to insulin in vitro. Following insulin stimulation, DKO hepatocytes expressing GM3 showed attenuated expression and/or activations in the downstream components compared with WT hepatocytes expressing GM2. While insulin stimulation induced lipogenic proteins in hepatocytes from both genotypes, their expression levels were lower in DKO than in WT hepatocytes after insulin treatment. All our findings suggest that the modified gangliosides, i.e., a shift to GM3 from GM2, might exert a suppressive effect on lipogenesis by attenuating insulin signaling at least in mouse hepatocytes, which might result in protection of HFD-induced hepatosteatosis.
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Affiliation(s)
- Orie Tajima
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Kasugai, Japan
| | - Yuki Fujita
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Kasugai, Japan
- Department of Clinical Laboratory, Aichi Medical University Hospital, Nagakute, Japan
| | - Yuhsuke Ohmi
- Department of Clinical Engineering, Chubu University College of Life and Health Sciences, Kasugai, Japan
| | - Koichi Furukawa
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Kasugai, Japan
- * E-mail:
| | - Keiko Furukawa
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Kasugai, Japan
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Alecu JE, Ohmi Y, Bhuiyan RH, Inamori KI, Nitta T, Saffari A, Jumo H, Ziegler M, Melo de Gusmao C, Sharma N, Ohno S, Manabe N, Yamaguchi Y, Kambe M, Furukawa K, Sahin M, Inokuchi JI, Furakawa K, Ebrahimi-Fakhari D. Functional validation of novel variants in B4GALNT1 associated with early-onset complex hereditary spastic paraplegia with impaired ganglioside synthesis. Am J Med Genet A 2022; 188:2590-2598. [PMID: 35775650 PMCID: PMC9378512 DOI: 10.1002/ajmg.a.62880] [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: 01/21/2022] [Revised: 05/01/2022] [Accepted: 05/22/2022] [Indexed: 01/24/2023]
Abstract
Childhood-onset forms of hereditary spastic paraplegia are ultra-rare diseases and often present with complex features. Next-generation-sequencing allows for an accurate diagnosis in many cases but the interpretation of novel variants remains challenging, particularly for missense mutations. Where sufficient knowledge of the protein function and/or downstream pathways exists, functional studies in patient-derived cells can aid the interpretation of molecular findings. We here illustrate the case of a 13-year-old female who presented with global developmental delay and later mild intellectual disability, progressive spastic diplegia, spastic-ataxic gait, dysarthria, urinary urgency, and loss of deep tendon reflexes of the lower extremities. Exome sequencing showed a novel splice-site variant in trans with a novel missense variant in B4GALNT1 [NM_001478.5: c.532-1G>C/c.1556G>C (p.Arg519Pro)]. Functional studies in patient-derived fibroblasts and cell models of GM2 synthase deficiency confirmed a loss of B4GALNT1 function with no synthesis of GM2 and other downstream gangliosides. Collectively these results established the diagnosis of B4GALNT1-associated HSP (SPG26). Our approach illustrates the importance of careful phenotyping and functional characterization of novel gene variants, particularly in the setting of ultra-rare diseases, and expands the clinical and molecular spectrum of SPG26, a disorder of complex ganglioside biosynthesis.
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Affiliation(s)
- Julian E. Alecu
- Department of Neurology and F.M. Kirby Neurobiology Center, Boston Children’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Yuhsuke Ohmi
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Kasugai, Japan
- Department of Medical Technology, Chubu University College of Life and Health Sciences, Kasugai, Japan
| | - Robiul H. Bhuiyan
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Kasugai, Japan
- Department of Biochemistry and Molecular Biology, University of Chittagong Faculty of Biological Sciences, Chittagong, Bangladesh
| | - Kei-ichiro Inamori
- Division of Glycopathology, Institute of Molecular Biomembrane and Glycobiology, Tohoku Medical and Pharmaceutical University, Sendai, Japan
| | - Takahiro Nitta
- Division of Glycopathology, Institute of Molecular Biomembrane and Glycobiology, Tohoku Medical and Pharmaceutical University, Sendai, Japan
| | - Afshin Saffari
- Department of Neurology and F.M. Kirby Neurobiology Center, Boston Children’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Hellen Jumo
- Department of Neurology and F.M. Kirby Neurobiology Center, Boston Children’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Marvin Ziegler
- Department of Neurology and F.M. Kirby Neurobiology Center, Boston Children’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Claudio Melo de Gusmao
- Department of Neurology and F.M. Kirby Neurobiology Center, Boston Children’s Hospital, Harvard Medical School, Boston, MA, USA
- Movement Disorders Program, Department of Neurology, Boston Children’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Nutan Sharma
- Movement Disorders Unit, Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Shiho Ohno
- Division of Structural Glycobiology, Institute of Molecular Biomembrane and Glycobiology, Tohoku Medical and Pharmaceutical University, Sendai, Japan
| | - Noriyoshi Manabe
- Division of Structural Glycobiology, Institute of Molecular Biomembrane and Glycobiology, Tohoku Medical and Pharmaceutical University, Sendai, Japan
| | - Yoshiki Yamaguchi
- Division of Structural Glycobiology, Institute of Molecular Biomembrane and Glycobiology, Tohoku Medical and Pharmaceutical University, Sendai, Japan
| | - Mariko Kambe
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Kasugai, Japan
| | - Keiko Furukawa
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Kasugai, Japan
| | - Mustafa Sahin
- Department of Neurology and F.M. Kirby Neurobiology Center, Boston Children’s Hospital, Harvard Medical School, Boston, MA, USA
- Rosamund Stone Zander Translational Neuroscience Center, Boston Children’s Hospital, Harvard Medical School, Boston, MA, USA
- Intellectual and Developmental Disabilities Research Center, Boston Children’s Hospital, Boston, MA, USA
| | - Jin-ichi Inokuchi
- Division of Glycopathology, Institute of Molecular Biomembrane and Glycobiology, Tohoku Medical and Pharmaceutical University, Sendai, Japan
- Core for Medicine and Science Collaborative Research and Education (MS-CORE), Project Research Center for Fundamental Sciences, Osaka University, Japan
| | - Koichi Furakawa
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Kasugai, Japan
| | - Darius Ebrahimi-Fakhari
- Department of Neurology and F.M. Kirby Neurobiology Center, Boston Children’s Hospital, Harvard Medical School, Boston, MA, USA
- Movement Disorders Program, Department of Neurology, Boston Children’s Hospital, Harvard Medical School, Boston, MA, USA
- Intellectual and Developmental Disabilities Research Center, Boston Children’s Hospital, Boston, MA, USA
- The Manton Center for Orphan Disease Research, Boston Children’s Hospital, Boston, MA, USA
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Furukawa K, Ohmi Y, Hamamura K, Kondo Y, Ohkawa Y, Kaneko K, Hashimoto N, Yesmin F, Bhuiyan RH, Tajima O, Furukawa K. Signaling domains of cancer-associated glycolipids. Glycoconj J 2022; 39:145-155. [PMID: 35315508 DOI: 10.1007/s10719-022-10051-1] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Revised: 02/06/2022] [Accepted: 02/15/2022] [Indexed: 12/16/2022]
Abstract
Immunotherapy of malignant cancers is now becoming one of representative approaches to overcome cancers. To construct strategies for immunotherapy, presence of tumor-specific antigens should be a major promise. A number of cancer specific- or cancer-associated antigens have been reported based on various experimental sets and various animal systems. The most reasonable strategy to define tumor-specific antigens might be "autologous typing" performed by Old's group, proposing three classes of tumor-antigens recognized by host immune systems of cancer patients. Namely, class 1, individual antigens that is present only in the patient's sample analyzed; class 2, shared antigens that can be found only in some group of cancers in some patients, but not in normal cells and tissues; class 3, universal antigens that are present in some cancers but also in normal cells and tissues with different densities. Sen Hakomori reported there were novel carbohydrates in cancers that could not be detected in normal cells mainly by biochemical approaches. Consequently, many of class 2 cancer-specific antigens have been revealed to be carbohydrate antigens, and been used for cancer diagnosis and treatment. Not only as cancer markers, but roles of those cancer-associated carbohydrates have also been recognized as functional molecules in cancer cells. In particular, roles of complex carbohydrates in the regulation of cell signaling on the cell surface microdomains, glycolipid-enriched microdomain (GEM)/rafts have been reported by Hakomori and many other researchers including us. The processes and present status of these studies on cancer-associated glycolipids were summarized.
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Affiliation(s)
- Koichi Furukawa
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Kasugai, Japan. .,Department of Molecular and Cellular Biochemistry, Nagoya University Graduate School of Medicine, Nagoya, Japan.
| | - Yuhsuke Ohmi
- Department of Clinical Engineering, Chubu University College of Life and Health Sciences, Kasugai, Japan
| | - Kazunori Hamamura
- Department of Pharmacology, Aichi Gakuin University School of Dentistry, Nisshin, Japan
| | - Yuji Kondo
- Department of Molecular and Cellular Biochemistry, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yuki Ohkawa
- Department of Glyco-Oncology and Medical Biochemistry, Osaka International Institute, Osaka, Japan
| | - Kei Kaneko
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Kasugai, Japan
| | - Noboru Hashimoto
- Department of Tissue Regeneration, Tokushima University Graduate School Institute of Biomedical Sciences, Tokushima, Japan
| | - Farhana Yesmin
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Kasugai, Japan.,Department of Molecular and Cellular Biochemistry, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Robiul H Bhuiyan
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Kasugai, Japan
| | - Orie Tajima
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Kasugai, Japan
| | - Keiko Furukawa
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Kasugai, Japan
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Yesmin F, Bhuiyan RH, Ohmi Y, Yamamoto S, Kaneko K, Ohkawa Y, Zhang P, Hamamura K, Cheung NKV, Kotani N, Honke K, Okajima T, Kambe M, Tajima O, Furukawa K, Furukawa K. Ganglioside GD2 Enhances the Malignant Phenotypes of Melanoma Cells by Cooperating with Integrins. Int J Mol Sci 2021; 23:ijms23010423. [PMID: 35008849 PMCID: PMC8745508 DOI: 10.3390/ijms23010423] [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: 10/30/2021] [Revised: 12/12/2021] [Accepted: 12/28/2021] [Indexed: 11/16/2022] Open
Abstract
Gangliosides have been considered to modulate cell signals in the microdomain of the cell membrane, lipid/rafts, or glycolipid-enriched microdomain/rafts (GEM/rafts). In particular, cancer-associated gangliosides were reported to enhance the malignant properties of cancer cells. In fact, GD2-positive (GD2+) cells showed increased proliferation, invasion, and adhesion, compared with GD2-negative (GD2-) cells. However, the precise mechanisms by which gangliosides regulate cell signaling in GEM/rafts are not well understood. In order to analyze the roles of ganglioside GD2 in the malignant properties of melanoma cells, we searched for GD2-associating molecules on the cell membrane using the enzyme-mediated activation of radical sources combined with mass spectrometry, and integrin β1 was identified as a representative GD2-associating molecule. Then, we showed the physical association of GD2 and integrin β1 by immunoprecipitation/immunoblotting. Close localization was also shown by immuno-cytostaining and the proximity ligation assay. During cell adhesion, GD2+ cells showed multiple phospho-tyrosine bands, i.e., the epithelial growth factor receptor and focal adhesion kinase. The knockdown of integrin β1 revealed that the increased malignant phenotypes in GD2+ cells were clearly cancelled. Furthermore, the phosphor-tyrosine bands detected during the adhesion of GD2+ cells almost completely disappeared after the knockdown of integrin β1. Finally, immunoblotting to examine the intracellular distribution of integrins during cell adhesion revealed that large amounts of integrin β1 were localized in GEM/raft fractions in GD2+ cells before and just after cell adhesion, with the majority being localized in the non-raft fractions in GD2- cells. All these results suggest that GD2 and integrin β1 cooperate in GEM/rafts, leading to enhanced malignant phenotypes of melanomas.
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Affiliation(s)
- Farhana Yesmin
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Kasugai 487-8501, Japan; (F.Y.); (R.H.B.); (S.Y.); (K.K.); (Y.O.); (P.Z.); (M.K.); (O.T.); (K.F.)
- Department of Molecular Biochemistry, Nagoya University Graduate School of Medicine, Nagoya 466-0065, Japan;
| | - Robiul H. Bhuiyan
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Kasugai 487-8501, Japan; (F.Y.); (R.H.B.); (S.Y.); (K.K.); (Y.O.); (P.Z.); (M.K.); (O.T.); (K.F.)
| | - Yuhsuke Ohmi
- Department of Medical Technology, Chubu University College of Life and Health Sciences, Kasugai 487-8501, Japan;
| | - Satoko Yamamoto
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Kasugai 487-8501, Japan; (F.Y.); (R.H.B.); (S.Y.); (K.K.); (Y.O.); (P.Z.); (M.K.); (O.T.); (K.F.)
| | - Kei Kaneko
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Kasugai 487-8501, Japan; (F.Y.); (R.H.B.); (S.Y.); (K.K.); (Y.O.); (P.Z.); (M.K.); (O.T.); (K.F.)
| | - Yuki Ohkawa
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Kasugai 487-8501, Japan; (F.Y.); (R.H.B.); (S.Y.); (K.K.); (Y.O.); (P.Z.); (M.K.); (O.T.); (K.F.)
- Department of Glyco-Oncology and Medical Biochemistry, Osaka International Cancer Institute, Osaka 541-8567, Japan
| | - Pu Zhang
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Kasugai 487-8501, Japan; (F.Y.); (R.H.B.); (S.Y.); (K.K.); (Y.O.); (P.Z.); (M.K.); (O.T.); (K.F.)
- Department of Molecular Biochemistry, Nagoya University Graduate School of Medicine, Nagoya 466-0065, Japan;
| | - Kazunori Hamamura
- Department of Pharmacology, Aichi Gakuin University School of Dentistry, Nagoya 464-8650, Japan;
| | | | - Norihiro Kotani
- Department of Biochemistry, Saitama Medical University, Saitama 350-0495, Japan;
| | - Koichi Honke
- Department of Biochemistry, Kochi University School of Medicine, Nangoku 783-8505, Japan;
| | - Tetsuya Okajima
- Department of Molecular Biochemistry, Nagoya University Graduate School of Medicine, Nagoya 466-0065, Japan;
| | - Mariko Kambe
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Kasugai 487-8501, Japan; (F.Y.); (R.H.B.); (S.Y.); (K.K.); (Y.O.); (P.Z.); (M.K.); (O.T.); (K.F.)
| | - Orie Tajima
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Kasugai 487-8501, Japan; (F.Y.); (R.H.B.); (S.Y.); (K.K.); (Y.O.); (P.Z.); (M.K.); (O.T.); (K.F.)
| | - Keiko Furukawa
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Kasugai 487-8501, Japan; (F.Y.); (R.H.B.); (S.Y.); (K.K.); (Y.O.); (P.Z.); (M.K.); (O.T.); (K.F.)
| | - Koichi Furukawa
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Kasugai 487-8501, Japan; (F.Y.); (R.H.B.); (S.Y.); (K.K.); (Y.O.); (P.Z.); (M.K.); (O.T.); (K.F.)
- Department of Molecular Biochemistry, Nagoya University Graduate School of Medicine, Nagoya 466-0065, Japan;
- Correspondence: ; Tel.: +81-568-51-9512
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7
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Zhang P, Ohkawa Y, Yamamoto S, Momota H, Kato A, Kaneko K, Natsume A, Farhana Y, Ohmi Y, Okajima T, Bhuiyan RH, Wakabayashi T, Furukawa K, Furukawa K. St8sia1-deficiency in mice alters tumor environments of gliomas, leading to reduced disease severity. Nagoya J Med Sci 2021; 83:535-549. [PMID: 34552288 PMCID: PMC8438004 DOI: 10.18999/nagjms.83.3.535] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Accepted: 12/18/2020] [Indexed: 12/29/2022]
Abstract
Ganglioside GD3/GD2 are over-expressed in various neuroectoderm-derived tumors. Previous studies indicated that GD3 is involved in the enhancement of cancer properties such as rapid growth and increased invasiveness. However, little is known about the functions of GD3/GD2 in glioma cells and glioma microenvironments. To clarify the functions of GD3/GD2 in gliomas, we used a mouse glioma model based on the RCAS/Gtv-a system. At first, we compared the gliomas size between wild-type (WT) and GD3 synthase (GD3S) knockout (KO) mice, showing a less malignant histology and slower tumor growth in GD3S-KO mice than in WT mice. Immunohistochemistry of glioma sections from WT and GD3S-KO mice revealed that reactive microglia/macrophages showed different localization patterns between the two genetic types of mice. CD68+ cells were more frequently stained inside glioma tissues of GD3S-KO mice, while they were stained mainly around glioma tissues in WT mice. The number of CD68+ cells markedly increased in tumor tissues of GD3S-KO mice at 2 weeks after injection of transfectant DF-1 cells. Furthermore, CD68+ cells in GD3S(-/-) glioma tissues expressed higher levels of inducible nitric oxide synthase. We observed higher expression levels of pro-inflammatory cytokine genes in primary-cultured glioma cells of WT mice than in GD3S-KO mice. DNA microarray data also revealed differential expression levels of various cytokines and chemokines in glioma tissues between WT and GD3S-KO mice. These results suggest that expression of GD3S allows glioma cells to promote polarization of microglia/macrophages towards M2-like phenotypes by modulating the expression levels of chemokines and cytokines.
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Affiliation(s)
- Pu Zhang
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Kasugai, Japan.,Department of Biochemistry II, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yuki Ohkawa
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Kasugai, Japan.,Department of Neurosurgery, Nagoya University Graduate School of Medicine, Nagoya, Japan.,Department of Glyco-Oncology and Medical Biochemistry, Osaka International Cancer Institute
| | - Satoko Yamamoto
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Kasugai, Japan
| | - Hiroyuki Momota
- Department of Neurosurgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Akira Kato
- Department of Neurosurgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Kei Kaneko
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Kasugai, Japan
| | - Atsushi Natsume
- Department of Neurosurgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yesmin Farhana
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Kasugai, Japan.,Department of Biochemistry II, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yuhsuke Ohmi
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Kasugai, Japan
| | - Tetsuya Okajima
- Department of Biochemistry II, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Robiul H Bhuiyan
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Kasugai, Japan
| | - Toshihiko Wakabayashi
- Department of Neurosurgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Keiko Furukawa
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Kasugai, Japan
| | - Koichi Furukawa
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Kasugai, Japan.,Department of Biochemistry II, Nagoya University Graduate School of Medicine, Nagoya, Japan
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8
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Ohkawa Y, Zhang P, Momota H, Kato A, Hashimoto N, Ohmi Y, Bhuiyan RH, Farhana Y, Natsume A, Wakabayashi T, Furukawa K, Furukawa K. Lack of GD3 synthase (St8sia1) attenuates malignant properties of gliomas in genetically engineered mouse model. Cancer Sci 2021; 112:3756-3768. [PMID: 34145699 PMCID: PMC8409297 DOI: 10.1111/cas.15032] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 06/12/2021] [Accepted: 06/14/2021] [Indexed: 01/12/2023] Open
Abstract
High expression of gangliosides GD3 and GD2 is observed in human gliomas. The functions of GD3 and GD2 in malignant properties have been reported in glioma cells in vitro, but those functions have not yet been investigated in vivo. In this study, we showed that deficiency of GD3 synthase (GD3S, St8sia1) attenuated glioma progression and clinical and pathological features in a platelet-derived growth factor B-driven murine glioma model. Lack of GD3S resulted in the prolonged lifespan of glioma-bearing mice and low-grade pathology in generated gliomas. Correspondingly, they showed reduced phosphorylation levels of Akt, Erks, and Src family kinases in glioma tissues. A DNA microarray study revealed marked alteration in the expression of various genes, particularly in MMP family genes, in GD3S-deficient gliomas. Re-expression of GD3S restored expression of MMP9 in primary-cultured glioma cells. We also identified a transcription factor, Ap2α, expressed in parallel with GD3S expression, and showed that Ap2α was critical for the induction of MMP9 by transfection of its cDNA and luciferase reporter genes, and a ChIP assay. These findings suggest that GD3S enhances the progression of gliomas by enhancement of the Ap2α-MMP9 axis. This is the first report to describe the tumor-enhancing functions of GD3S in vivo.
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Affiliation(s)
- Yuki Ohkawa
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Kasugai, Japan.,Department of Glyco-Oncology and Medical Biochemistry, Osaka International Cancer Institute, Osaka, Japan
| | - Pu Zhang
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Kasugai, Japan.,Department of Biochemistry II, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Hiroyuki Momota
- Department of Neurosurgery, Nagoya University Graduate School of Medicine, Nagoya, Japan.,Department of Surgical Neuro-Oncology, The Institute of Medical Science, University of Tokyo, Tokyo, Japan
| | - Akira Kato
- Department of Neurosurgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Noboru Hashimoto
- Department of Biochemistry II, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yuhsuke Ohmi
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Kasugai, Japan
| | - Robiul H Bhuiyan
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Kasugai, Japan
| | - Yesmin Farhana
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Kasugai, Japan.,Department of Biochemistry II, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Atsushi Natsume
- Department of Neurosurgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Toshihiko Wakabayashi
- Department of Neurosurgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Keiko Furukawa
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Kasugai, Japan
| | - Koichi Furukawa
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Kasugai, Japan.,Department of Biochemistry II, Nagoya University Graduate School of Medicine, Nagoya, Japan
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9
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Hotta H, Hamamura K, Shibuya H, Ohmi Y, Furukawa K, Furukawa K. Lewis y Expressed in Oral Squamous Cell Carcinoma Attenuates Malignant Properties via Down-regulation of EGF Signaling. Anticancer Res 2021; 41:1821-1830. [PMID: 33813387 DOI: 10.21873/anticanres.14948] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 02/24/2021] [Accepted: 02/25/2021] [Indexed: 11/10/2022]
Abstract
BACKGROUND/AIM Lewis y is expressed in oral squamous cell carcinoma (OSCC) cells and tumors. Previously, we reported that Lewis y was not expressed in invasion areas, and attenuation of proliferation and invasion in OSCC cells was caused by over-expression of Lewis y. However, the roles of Lewis y in the attenuation of malignant properties have not been clarified. In this study, we investigated the roles of Lewis y in OSCC. MATERIALS AND METHODS The levels of Lewis y on EGFR and the phosphorylation levels of EGFR in OSCC cells were analyzed by immunoprecipitation and western blot. EGFR cross-linking and binding kinetics of EGF were performed. RESULTS Upon EGF stimulation, phosphorylation and dimer formation of EGFR were more prominent in Lewis y- cells. EGF binding kinetics showed reduced binding sites in Lewis y+ cells. CONCLUSION Lewis y reduced EGF binding to EGFR, leading to suppression of malignant properties through suppression of EGF signaling.
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Affiliation(s)
- Hiroshi Hotta
- Department of Biochemistry II, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Kazunori Hamamura
- Department of Pharmacology, School of Dentistry, Aichi Gakuin University, Nagoya, Japan;
| | - Hidenobu Shibuya
- Department of Biochemistry II, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yuhsuke Ohmi
- Department of Clinical Engineering, Chubu University College of Life and Health Sciences, Kasugai, Japan
| | - Keiko Furukawa
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Kasugai, Japan
| | - Koichi Furukawa
- Department of Biochemistry II, Nagoya University Graduate School of Medicine, Nagoya, Japan.,Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Kasugai, Japan
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10
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Ohmi Y, Nishikaze T, Kitaura Y, Ito T, Yamamoto S, Sugiyama F, Matsuyama M, Takahashi Y, Takeda A, Kawahara T, Okajima T, Furukawa K, Furukawa K. Majority of alpha2,6-sialylated glycans in the adult mouse brain exist in O-glycans: SALSA-MS analysis for knockout mice of alpha2,6-sialyltransferase genes. Glycobiology 2020; 31:557-570. [PMID: 33242079 DOI: 10.1093/glycob/cwaa105] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 10/14/2020] [Accepted: 10/26/2020] [Indexed: 11/13/2022] Open
Abstract
Sialic acids are unique sugars with negative charge and exert various biological functions such as regulation of immune systems, maintenance of nerve tissues and expression of malignant properties of cancers. Alpha 2,6 sialylated N-glycans, one of representative sialylation forms, are synthesized by St6gal1 or St6gal2 gene products in humans and mice. Previously, it has been reported that St6gal1 gene is ubiquitously expressed in almost all tissues. On the other hand, St6gal2 gene is expressed mainly in the embryonic and perinatal stages of brain tissues. However, roles of St6gal2 gene have not been clarified. Expression profiles of N-glycans with terminal α2,6 sialic acid generated by St6gal gene products in the brain have never been directly studied. Using conventional lectin blotting and novel sialic acid linkage-specific alkylamidationmass spectrometry method (SALSA-MS), we investigated the function and expression of St6gal genes and profiles of their products in the adult mouse brain by establishing KO mice lacking St6gal1 gene, St6gal2 gene, or both of them (double knockout). Consequently, α2,6-sialylated N-glycans were scarcely detected in adult mouse brain tissues, and a majority of α2,6-sialylated glycans found in the mouse brain were O-linked glycans. The majority of these α2,6-sialylated O-glycans were shown to be disialyl-T antigen and sialyl-(6)T antigen by mass spectrometry analysis. Moreover, it was revealed that a few α2,6-sialylated N-glycans were produced by the action of St6gal1 gene, despite both St6gal1 and St6gal2 genes being expressed in the adult mouse brain. In the future, where and how sialylated O-linked glycoproteins function in the brain tissue remains to be clarified.
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Affiliation(s)
- Yuhsuke Ohmi
- Department of Clinical Engineering, Chubu University College of Life and Health Sciences, Kasugai, Aichi 487-8501, Japan
| | - Takashi Nishikaze
- Koichi Tanaka Mass Spectrometry Research Laboratory, Shimadzu Corporation, 1, Nishinokyo-Kuwabaracho, Nakagyo-ku, Kyoto 604-8511, Japan
| | - Yoko Kitaura
- Department of Clinical Engineering, Chubu University College of Life and Health Sciences, Kasugai, Aichi 487-8501, Japan
| | - Takako Ito
- Department of Clinical Engineering, Chubu University College of Life and Health Sciences, Kasugai, Aichi 487-8501, Japan
| | - Satoko Yamamoto
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Kasugai, Aichi 487-8501, Japan
| | - Fumihiro Sugiyama
- Laboratory Animal Resource Center, University of Tsukuba, Tsukuba 305-8575, Japan
| | - Makoto Matsuyama
- Division of Molecular Genetics, Shigei Medical Research Institute, 2117, Yamada, Minami-ku, Okayama 701-0202, Japan
| | - Yoshimasa Takahashi
- Department of Immunology, National Institute of Infectious Diseases, Tokyo 162-8640, Japan
| | - Akira Takeda
- Department of Clinical Engineering, Chubu University College of Life and Health Sciences, Kasugai, Aichi 487-8501, Japan
| | - Toshio Kawahara
- Department of Clinical Engineering, Chubu University College of Life and Health Sciences, Kasugai, Aichi 487-8501, Japan
| | - Tetsuya Okajima
- Department of Biochemistry II, Nagoya University Graduate School of Medicine, Nagoya 466-0065, Japan
| | - Keiko Furukawa
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Kasugai, Aichi 487-8501, Japan
| | - Koichi Furukawa
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Kasugai, Aichi 487-8501, Japan.,Department of Biochemistry II, Nagoya University Graduate School of Medicine, Nagoya 466-0065, Japan
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11
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Yesmin F, Bhuiyan RH, Ohmi Y, Ohkawa Y, Tajima O, Okajima T, Furukawa K, Furukawa K. Aminoglycosides are efficient reagents to induce readthrough of premature termination codon in mutant B4GALNT1 genes found in families of hereditary spastic paraplegia. J Biochem 2020; 168:103-112. [PMID: 32282910 DOI: 10.1093/jb/mvaa041] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Accepted: 03/31/2020] [Indexed: 01/11/2023] Open
Abstract
The readthrough of premature termination codon (PTC) by ribosome sometimes produces full-length proteins. We previously reported a readthrough of PTC of glycosyltransferase gene B4GALNT1 with hereditary spastic paraplegia (HSP). Here we featured the readthrough of B4GALNT1 of two mutants, M4 and M2 with PTC by immunoblotting and flow cytometry after transfection of B4GALNT1 cDNAs into cells. Immunoblotting showed a faint band of full-length mutant protein of M4 but not M2 at a similar position with that of wild-type B4GALNT1. AGC sequences at immediately before and after the PTC in M4 were critical for the readthrough. Treatment of cells transfected with mutant M4 cDNA with aminoglycosides resulted in increased readthrough of PTC. Furthermore, treatment of transfectants of mutant M2 cDNA with G418 also resulted in the induction of readthrough of PTC. Both M4 and M2 cDNA transfectants showed increased/induced bands in immunoblotting and GM2 expression in a dose-dependent manner of aminoglycosides. Results of mass spectrometry supported this effect. Here, we showed for the first time the induction and/or enhancement of the readthrough of PTCs of B4GALNT1 by aminoglycoside treatment, suggesting that aminoglycosides are efficient for patients with HSP caused by PTC of B4GALNT1, in which gradual neurological disorders emerged with aging.
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Affiliation(s)
- Farhana Yesmin
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, 1200 Matsumoto, Kasugai 487-8501, Japan.,Department of Biochemistry II, Nagoya University Graduate School of Medicine, Nagoya 466-0065, Japan
| | - Robiul H Bhuiyan
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, 1200 Matsumoto, Kasugai 487-8501, Japan.,Department of Biochemistry and Molecular Biology, University of Chittagong, Chittagong 4331, Bangladesh
| | - Yuhsuke Ohmi
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, 1200 Matsumoto, Kasugai 487-8501, Japan
| | - Yuki Ohkawa
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, 1200 Matsumoto, Kasugai 487-8501, Japan
| | - Orie Tajima
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, 1200 Matsumoto, Kasugai 487-8501, Japan
| | - Tetsuya Okajima
- Department of Biochemistry II, Nagoya University Graduate School of Medicine, Nagoya 466-0065, Japan
| | - Keiko Furukawa
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, 1200 Matsumoto, Kasugai 487-8501, Japan
| | - Koichi Furukawa
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, 1200 Matsumoto, Kasugai 487-8501, Japan.,Department of Biochemistry II, Nagoya University Graduate School of Medicine, Nagoya 466-0065, Japan
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12
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Ohmi Y, Furukawa K, Furukawa K. Elucidation of Pathological Mechanisms for Involvement of Gangliosides in Intractable Diseases. TRENDS GLYCOSCI GLYC 2020. [DOI: 10.4052/tigg.2011.2e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
- Yuhsuke Ohmi
- Chubu University College of Life and Health Sciences
| | | | - Koichi Furukawa
- Chubu University College of Life and Health Sciences
- Nagoya University Graduate School of Medicine
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13
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Ohmi Y, Furukawa K, Furukawa K. Elucidation of Pathological Mechanisms for Involvement of Gangliosides in Intractable Diseases. TRENDS GLYCOSCI GLYC 2020. [DOI: 10.4052/tigg.2011.2j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
- Yuhsuke Ohmi
- Chubu University College of Life and Health Sciences
| | | | - Koichi Furukawa
- Chubu University College of Life and Health Sciences
- Nagoya University Graduate School of Medicine
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14
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Furukawa K, Ohmi Y, Yesmin F, Tajima O, Kondo Y, Zhang P, Hashimoto N, Ohkawa Y, Bhuiyan RH, Furukawa K. Novel Molecular Mechanisms of Gangliosides in the Nervous System Elucidated by Genetic Engineering. Int J Mol Sci 2020; 21:ijms21061906. [PMID: 32168753 PMCID: PMC7139306 DOI: 10.3390/ijms21061906] [Citation(s) in RCA: 12] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 02/29/2020] [Accepted: 03/06/2020] [Indexed: 12/13/2022] Open
Abstract
Acidic glycosphingolipids, i.e., gangliosides, are predominantly and consistently expressed in nervous tissues of vertebrates at high levels. Therefore, they are considered to be involved in the development and function of nervous systems. Recent studies involving genetic engineering of glycosyltransferase genes have revealed novel aspects of the roles of gangliosides in the regulation of nervous tissues. In this review, novel findings regarding ganglioside functions and their modes of action elucidated mainly by studies of gene knockout mice are summarized. In particular, the roles of gangliosides in the regulation of lipid rafts to maintain the integrity of nervous systems are reported with a focus on the roles in the regulation of neuro-inflammation and neurodegeneration via complement systems. In addition, recent advances in studies of congenital neurological disorders due to genetic mutations of ganglioside synthase genes and also in the techniques for the analysis of ganglioside functions are introduced.
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Affiliation(s)
- Koichi Furukawa
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, 1200 Matsumoto, Kasugai, Aichi 487-8501, Japan; (F.Y.); (O.T.); (P.Z.); (R.H.B.); (K.F.)
- Department of Biochemistry II, Nagoya University Graduate School of Medicine, 65 Tsurumai, Showa-ku, Nagoya 466-0065, Japan;
- Correspondence: ; Tel./Fax: +81-568-51-9512
| | - Yuhsuke Ohmi
- Department of Medical Technology, Chubu University College of Life and Health Sciences, 1200 Matsumoto, Kasugai, Aichi 487-8501, Japan;
| | - Farhana Yesmin
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, 1200 Matsumoto, Kasugai, Aichi 487-8501, Japan; (F.Y.); (O.T.); (P.Z.); (R.H.B.); (K.F.)
- Department of Biochemistry II, Nagoya University Graduate School of Medicine, 65 Tsurumai, Showa-ku, Nagoya 466-0065, Japan;
| | - Orie Tajima
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, 1200 Matsumoto, Kasugai, Aichi 487-8501, Japan; (F.Y.); (O.T.); (P.Z.); (R.H.B.); (K.F.)
| | - Yuji Kondo
- Department of Biochemistry II, Nagoya University Graduate School of Medicine, 65 Tsurumai, Showa-ku, Nagoya 466-0065, Japan;
| | - Pu Zhang
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, 1200 Matsumoto, Kasugai, Aichi 487-8501, Japan; (F.Y.); (O.T.); (P.Z.); (R.H.B.); (K.F.)
- Department of Biochemistry II, Nagoya University Graduate School of Medicine, 65 Tsurumai, Showa-ku, Nagoya 466-0065, Japan;
| | - Noboru Hashimoto
- Department of Tissue Regeneration, Tokushima University Graduate School of Biomedical Sciences, 3-18-5, Kuramoto-cho, Tokushima 770-8504, Japan;
| | - Yuki Ohkawa
- Department of Glycooncology, Osaka International Cancer Institute, Osaka 541-8567, Japan;
| | - Robiul H. Bhuiyan
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, 1200 Matsumoto, Kasugai, Aichi 487-8501, Japan; (F.Y.); (O.T.); (P.Z.); (R.H.B.); (K.F.)
| | - Keiko Furukawa
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, 1200 Matsumoto, Kasugai, Aichi 487-8501, Japan; (F.Y.); (O.T.); (P.Z.); (R.H.B.); (K.F.)
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15
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Furukawa K, Ohmi Y, Furukawa K. Erratum to anti-GD2 CAR T cells could prove transformative for H3-K27M + diffuse midline gliomas. Transl Cancer Res 2019; 8:1014-1015. [PMID: 35129554 PMCID: PMC8798005 DOI: 10.21037/tcr.2019.04.17] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Abstract
[This corrects the article DOI: 10.21037/tcr.2018.08.21.].
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Affiliation(s)
- Koichi Furukawa
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Kasugai, Aichi, Japan
| | - Yuhsuke Ohmi
- Department of Clinical Engineering, Chubu University College of Life and Health Sciences, Kasugai, Aichi, Japan
| | - Keiko Furukawa
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Kasugai, Aichi, Japan
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16
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Hashimoto N, Ito S, Tsuchida A, Bhuiyan RH, Okajima T, Yamamoto A, Furukawa K, Ohmi Y, Furukawa K. The ceramide moiety of disialoganglioside (GD3) is essential for GD3 recognition by the sialic acid-binding lectin SIGLEC7 on the cell surface. J Biol Chem 2019; 294:10833-10845. [PMID: 31138648 DOI: 10.1074/jbc.ra118.007083] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Revised: 05/18/2019] [Indexed: 12/21/2022] Open
Abstract
To analyze the binding specificity of a sialic acid-recognizing lectin, sialic acid-binding Ig-like lectin 7 (SIGLEC7), to disialyl gangliosides (GD3s), here we established GD3-expressing cells by introducing GD3 synthase (GD3S or ST8SIA1) cDNA into a colon cancer cell line, DLD-1, that expresses no ligands for the recombinant protein SIGLEC7-Fc. SIGLEC7-Fc did not recognize newly-expressed GD3 on DLD-1 cells, even though GD3 was highly expressed, as detected by an anti-GD3 antibody. Because milk-derived GD3 could be recognized by this fusion protein when incorporated onto the surface of DLD-1 cells, we compared the ceramides in DLD-1-generated and milk-derived GD3s to identify the SIGLEC7-specific GD3 structures on the cell membrane, revealing that SIGLEC7 recognizes only GD3-containing regular ceramides but not phytoceramides. This was confirmed by knockdown/knockout of the sphingolipid delta(4)-desaturase/C4-monooxygenase (DES2) gene, involved in phytoceramide synthesis, disclosing that DES2 inhibition confers SIGLEC7 binding. Furthermore, knocking out fatty acid 2-hydroxylase also resulted in the emergence of SIGLEC7 binding to the cell surface. To analyze the effects of binding between SIGLEC7 and various GD3 species on natural killer function, we investigated cytotoxicity of peripheral blood mononuclear cells from healthy donors toward GD3S-transfected DLD-1 (DLD-1-GD3S) cells and DLD-1-GD3S cells with modified ceramides. We found that cytotoxicity is suppressed in DLD-1-GD3S cells with dehydroxylated GD3s. These results indicate that the ceramide structures in glycosphingolipids affect SIGLEC7 binding and distribution on the cell surface and influence cell sensitivity to killing by SIGLEC7-expressing effector cells.
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Affiliation(s)
- Noboru Hashimoto
- Department of Biochemistry II, Nagoya University Graduate School of Medicine, 65 Tsurumai, Showa-ku, Nagoya 466-0065, Japan,; Department of Tissue Regeneration, Tokushima University Graduate School of Biomedical Sciences, 3-18-5, Kuramoto-cho, Tokushima 770-8504, Japan
| | - Shizuka Ito
- Department of Biochemistry II, Nagoya University Graduate School of Medicine, 65 Tsurumai, Showa-ku, Nagoya 466-0065, Japan
| | - Akiko Tsuchida
- Department of Biochemistry II, Nagoya University Graduate School of Medicine, 65 Tsurumai, Showa-ku, Nagoya 466-0065, Japan
| | - Robiul H Bhuiyan
- Department of Biochemistry II, Nagoya University Graduate School of Medicine, 65 Tsurumai, Showa-ku, Nagoya 466-0065, Japan,; Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, 1200 Matsumoto, Kasugai, Aichi 487-8501, Japan, and
| | - Tetsuya Okajima
- Department of Biochemistry II, Nagoya University Graduate School of Medicine, 65 Tsurumai, Showa-ku, Nagoya 466-0065, Japan
| | - Akihito Yamamoto
- Department of Tissue Regeneration, Tokushima University Graduate School of Biomedical Sciences, 3-18-5, Kuramoto-cho, Tokushima 770-8504, Japan
| | - Keiko Furukawa
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, 1200 Matsumoto, Kasugai, Aichi 487-8501, Japan, and
| | - Yuhsuke Ohmi
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, 1200 Matsumoto, Kasugai, Aichi 487-8501, Japan, and
| | - Koichi Furukawa
- Department of Biochemistry II, Nagoya University Graduate School of Medicine, 65 Tsurumai, Showa-ku, Nagoya 466-0065, Japan,; Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, 1200 Matsumoto, Kasugai, Aichi 487-8501, Japan, and.
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17
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Furukawa K, Ohmi Y, Ohkawa Y, Bhuiyan RH, Zhang P, Tajima O, Hashimoto N, Hamamura K, Furukawa K. New era of research on cancer-associated glycosphingolipids. Cancer Sci 2019; 110:1544-1551. [PMID: 30895683 PMCID: PMC6501054 DOI: 10.1111/cas.14005] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Revised: 03/13/2019] [Accepted: 03/19/2019] [Indexed: 12/31/2022] Open
Abstract
Cancer‐associated glycosphingolipids have been used as markers for diagnosis and targets for immunotherapy of malignant tumors. Recent progress in the analysis of their implications in the malignant properties of cancer cells revealed that cancer‐associated glycosphingolipids are not only tumor markers, but also functional molecules regulating various signals introduced by membrane microdomains, lipid rafts. In particular, a novel approach, enzyme‐mediated activation of radical sources combined with mass spectrometry, has enabled us to clarify the mechanisms by which cancer‐associated glycosphingolipids regulate cell signals based on the interaction with membrane molecules and formation of molecular complexes on the cell surface. Novel findings obtained from these approaches are now providing us with insights into the development of new anticancer therapies targeting membrane molecular complexes consisting of cancer‐associated glycolipids and their associated membrane molecules. Thus, a new era of cancer‐associated glycosphingolipids has now begun.
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Affiliation(s)
- Koichi Furukawa
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Kasugai, Japan.,Department of Molecular Biochemistry, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yuhsuke Ohmi
- Department of Medical Technology, Chubu University College of Life and Health Sciences, Kasugai, Japan
| | - Yuki Ohkawa
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Kasugai, Japan
| | - Robiul H Bhuiyan
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Kasugai, Japan
| | - Pu Zhang
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Kasugai, Japan.,Department of Molecular Biochemistry, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Orie Tajima
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Kasugai, Japan
| | - Noboru Hashimoto
- Department of Molecular Biochemistry, Nagoya University Graduate School of Medicine, Nagoya, Japan.,Department of Anatomy, Faculty of Medical and Dental Sciences, Tokushima University, Tokushima, Japan
| | - Kazunori Hamamura
- Department of Pharmacology, School of Dentistry, Aichi-Gakuin University, Nagoya, Japan
| | - Keiko Furukawa
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Kasugai, Japan
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18
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Furukawa K, Ohmi Y, Furukawa K. Anti-GD2 CAR T cells could prove transformative for H3-K27M+ diffuse midline gliomas. Transl Cancer Res 2019; 8:S87-S93. [PMID: 35117070 PMCID: PMC8797336 DOI: 10.21037/tcr.2018.08.21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Accepted: 08/14/2018] [Indexed: 11/23/2022]
Affiliation(s)
- Koichi Furukawa
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Kasugai, Aichi, Japan
| | - Yuhsuke Ohmi
- Department of Clinical Engineering, Chubu University College of Life and Health Sciences, Kasugai, Aichi, Japan
| | - Keiko Furukawa
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Kasugai, Aichi, Japan
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19
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Ohmi Y, Kambe M, Ohkawa Y, Hamamura K, Tajima O, Takeuchi R, Furukawa K, Furukawa K. Differential roles of gangliosides in malignant properties of melanomas. PLoS One 2018; 13:e0206881. [PMID: 30462668 PMCID: PMC6248923 DOI: 10.1371/journal.pone.0206881] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [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: 05/23/2018] [Accepted: 10/22/2018] [Indexed: 12/18/2022] Open
Abstract
Ganglioside GD3 is widely expressed in human malignant melanomas, and has been reported to be involved in the increased cell proliferation and invasion. In this study, we established GM3-, GM2-, GM1-, GD3-, or GD2-expressing melanoma cell lines by transfecting cDNAs of glyscosyltransferases, and effects of individual gangliosides on the cell phenotypes and signals were examined. The phenotypes of established ganglioside-expressing cells were quite different, i.e. cell growth increased as following order; GD2+, GD3+ > GM1+, GM2+, GM3+ cells. Cell invasion activity increased as GD3+ ≧ GM2+ > GM1+, GM3+, GD2+ cells. Intensity of cell adhesion to collagen I (CL-I) and spreading increased as GD2+ >> GD3+, GM1+ > GM2+, GM3+ cells. In particular, cell adhesion of GD2+ cells was markedly strong. As for cell migration velocity, GD2+ cells were slower than all other cells. The immunocytostaining revealed close localization of gangliosides and F-actin in lamellipodia. Immunoblotting of phosphorylated p130Cas and paxillin by serum treatment reveled that these phosphorylations were more increased in GD3+ cells than in GD2+ or GM3+ cells, while phosphorylation of Akt underwent similarly increased phosphorylation between GD3+ and GD2+ cells compared with GM3+ cells. While GD2 and GD3 enhanced cell growth, GD3 might also contribute in cell invasion. On the other hand, GD2 might contribute in the solid fixation of melanoma cells at metastasized sites. These results suggested that individual gangliosides exert distinct roles in the different aspects of melanomas by differentially regulating cytoskeletons and signaling molecules.
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Affiliation(s)
- Yuhsuke Ohmi
- Department of Clinical Engineering, Chubu University College of Life and Health Sciences, Kasugai, Aichi, Japan
| | - Mariko Kambe
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Kasugai, Aichi, Japan
| | - Yuki Ohkawa
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Kasugai, Aichi, Japan
| | - Kazunori Hamamura
- Department of Pharmacology, School of Dentistry, Aichigakuin University, Nagoya, Japan
| | - Orie Tajima
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Kasugai, Aichi, Japan
| | - Rika Takeuchi
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Kasugai, Aichi, Japan
| | - Koichi Furukawa
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Kasugai, Aichi, Japan
- Department of Biochemistry II, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Keiko Furukawa
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Kasugai, Aichi, Japan
- * E-mail:
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20
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Tian S, Muneeruddin K, Choi MY, Tao L, Bhuiyan RH, Ohmi Y, Furukawa K, Furukawa K, Boland S, Shaffer SA, Adam RM, Dong M. Genome-wide CRISPR screens for Shiga toxins and ricin reveal Golgi proteins critical for glycosylation. PLoS Biol 2018; 16:e2006951. [PMID: 30481169 PMCID: PMC6258472 DOI: 10.1371/journal.pbio.2006951] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [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: 06/11/2018] [Accepted: 10/02/2018] [Indexed: 12/15/2022] Open
Abstract
Glycosylation is a fundamental modification of proteins and membrane lipids. Toxins that utilize glycans as their receptors have served as powerful tools to identify key players in glycosylation processes. Here, we carried out Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR)-Cas9-mediated genome-wide loss-of-function screens using two related bacterial toxins, Shiga-like toxins (Stxs) 1 and 2, which use a specific glycolipid, globotriaosylceramide (Gb3), as receptors, and the plant toxin ricin, which recognizes a broad range of glycans. The Stxs screens identified major glycosyltransferases (GTs) and transporters involved in Gb3 biosynthesis, while the ricin screen identified GTs and transporters involved in N-linked protein glycosylation and fucosylation. The screens also identified lysosomal-associated protein transmembrane 4 alpha (LAPTM4A), a poorly characterized four-pass membrane protein, as a factor specifically required for Stxs. Mass spectrometry analysis of glycolipids and their precursors demonstrates that LAPTM4A knockout (KO) cells lack Gb3 biosynthesis. This requirement of LAPTM4A for Gb3 synthesis is not shared by its homolog lysosomal-associated protein transmembrane 4 beta (LAPTM4B), and switching the domains between them determined that the second luminal domain of LAPTM4A is required, potentially acting as a specific "activator" for the GT that synthesizes Gb3. These screens also revealed two Golgi proteins, Transmembrane protein 165 (TMEM165) and Transmembrane 9 superfamily member 2 (TM9SF2), as shared factors required for both Stxs and ricin. TMEM165 KO and TM9SF2 KO cells both showed a reduction in not only Gb3 but also other glycosphingolipids, suggesting that they are required for maintaining proper levels of glycosylation in general in the Golgi. In addition, TM9SF2 KO cells also showed defective endosomal trafficking. These studies reveal key Golgi proteins critical for regulating glycosylation and glycolipid synthesis and provide novel therapeutic targets for blocking Stxs and ricin toxicity.
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Affiliation(s)
- Songhai Tian
- Department of Urology, Boston Children’s Hospital, Boston, Massachusetts, United States of America
- Department of Surgery, Harvard Medical School, Boston, Massachusetts, United States of America
- Department of Microbiology and Immunobiology, Harvard Medical School, Boston, Massachusetts, United States of America
| | - Khaja Muneeruddin
- Department of Biochemistry and Molecular Pharmacology, University of Massachusetts Medical School, Worcester, Massachusetts, United States of America
- Mass Spectrometry Facility, University of Massachusetts Medical School, Shrewsbury, Massachusetts, United States of America
| | - Mei Yuk Choi
- Division of Genetics, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts, United States of America
| | - Liang Tao
- Department of Urology, Boston Children’s Hospital, Boston, Massachusetts, United States of America
- Department of Surgery, Harvard Medical School, Boston, Massachusetts, United States of America
- Department of Microbiology and Immunobiology, Harvard Medical School, Boston, Massachusetts, United States of America
| | - Robiul H. Bhuiyan
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Matsumoto, Kasugai, Aichi, Japan
| | - Yuhsuke Ohmi
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Matsumoto, Kasugai, Aichi, Japan
| | - Keiko Furukawa
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Matsumoto, Kasugai, Aichi, Japan
| | - Koichi Furukawa
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Matsumoto, Kasugai, Aichi, Japan
| | - Sebastian Boland
- Department of Genetics and Complex Diseases, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, United States of America
| | - Scott A. Shaffer
- Department of Biochemistry and Molecular Pharmacology, University of Massachusetts Medical School, Worcester, Massachusetts, United States of America
- Mass Spectrometry Facility, University of Massachusetts Medical School, Shrewsbury, Massachusetts, United States of America
| | - Rosalyn M. Adam
- Department of Urology, Boston Children’s Hospital, Boston, Massachusetts, United States of America
- Department of Surgery, Harvard Medical School, Boston, Massachusetts, United States of America
| | - Min Dong
- Department of Urology, Boston Children’s Hospital, Boston, Massachusetts, United States of America
- Department of Surgery, Harvard Medical School, Boston, Massachusetts, United States of America
- Department of Microbiology and Immunobiology, Harvard Medical School, Boston, Massachusetts, United States of America
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21
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Iwasawa T, Zhang P, Ohkawa Y, Momota H, Wakabayashi T, Ohmi Y, Bhuiyan RH, Furukawa K, Furukawa K. Enhancement of malignant properties of human glioma cells by ganglioside GD3/GD2. Int J Oncol 2018; 52:1255-1266. [PMID: 29436609 DOI: 10.3892/ijo.2018.4266] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Accepted: 01/19/2018] [Indexed: 11/06/2022] Open
Abstract
Sialic acid-containing glycosphingolipids, gangliosides, are considered as cancer associated antigens in neuro-ectoderm-derived tumors such as melanomas and neuroblastomas. In particular, gangliosides GD3 and GD2 are expressed in human gliomas. It has been reported that their expression levels increase along with increased malignant properties. However, the implication of GD3/GD2 in human glioma cells has never been clarified, at least to the best of our knowledge. In this study, we introduced the cDNA of GD3 synthase (GD3S)(ST8SIA1) into a glioma cell line, U-251MG, that expresses neither GD3 nor GD2, thereby establishing transfectant cells U-251MG-GD3S(+) expressing high levels of GD3 and GD2 on the cell surface. In these U-251MG‑GD3S(+) cell lines, signaling molecules such as Erk1/2, Akt, p130Cas, paxillin and focal adhesion kinase were activated, leading to the enhancement of invasion activity and motility. It was then demonstrated that the U-251MG-GD3S(+) cells could proliferate under culture conditions with low or no serum concentrations without undergoing cell cycle arrest by escaping the accumulation of p16 and p21. All these results suggested that GD3 and GD2 highly expressed in gliomas confer increased invasion and mobility, cell growth abilities under low serum conditions, and increased ratios of the S-G2/M phase in the cell cycle.
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Affiliation(s)
- Taiji Iwasawa
- Department of Biochemistry II, Nagoya University Graduate School of Medicine, Nagoya 466-8550, Japan
| | - Pu Zhang
- Department of Biochemistry II, Nagoya University Graduate School of Medicine, Nagoya 466-8550, Japan
| | - Yuki Ohkawa
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Kasugai, Aichi 487-8501, Japan
| | - Hiroyuki Momota
- Department of Neurosurgery, Nagoya University Graduate School of Medicine, Nagoya 466-8550, Japan
| | - Toshihiko Wakabayashi
- Department of Neurosurgery, Nagoya University Graduate School of Medicine, Nagoya 466-8550, Japan
| | - Yuhsuke Ohmi
- Department of Biochemistry II, Nagoya University Graduate School of Medicine, Nagoya 466-8550, Japan
| | - Robiul H Bhuiyan
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Kasugai, Aichi 487-8501, Japan
| | - Keiko Furukawa
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Kasugai, Aichi 487-8501, Japan
| | - Koichi Furukawa
- Department of Biochemistry II, Nagoya University Graduate School of Medicine, Nagoya 466-8550, Japan
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22
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Esaki N, Ohkawa Y, Hashimoto N, Tsuda Y, Ohmi Y, Bhuiyan RH, Kotani N, Honke K, Enomoto A, Takahashi M, Furukawa K, Furukawa K. ASC amino acid transporter 2, defined by enzyme-mediated activation of radical sources, enhances malignancy of GD2-positive small-cell lung cancer. Cancer Sci 2018; 109:141-153. [PMID: 29151270 PMCID: PMC5765286 DOI: 10.1111/cas.13448] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Revised: 10/31/2017] [Accepted: 11/12/2017] [Indexed: 12/20/2022] Open
Abstract
Ganglioside GD2 is specifically expressed in small‐cell lung cancer (SCLC) cells, leading to enhancement of malignant phenotypes, such as cell proliferation and migration. However, how GD2 promotes malignant phenotypes in SCLC cells is not well known. In this study, to reveal the mechanisms by which GD2 increases malignant phenotypes in SCLC cells, we used enzyme‐mediated activation of radical sources combined with mass spectrometry in GD2+SCLC cells. Consequently, we identified ASC amino acid transporter 2 (ASCT2), a major glutamine transporter, which coordinately works with GD2. We showed that ASCT2 was highly expressed in glycolipid‐enriched microdomain/rafts in GD2+SCLC cells, and colocalized with GD2 in both proximity ligation assay and immunocytostaining, and bound with GD2 in immunoprecipitation/TLC immunostaining. Malignant phenotypes of GD2+SCLC cells were enhanced by glutamine uptake, and were suppressed by L‐γ‐glutamyl‐p‐nitroanilide, a specific inhibitor of ASCT2, through reduced phosphorylation of p70 S6K1 and S6. These results suggested that ASCT2 enhances glutamine uptake in glycolipid‐enriched microdomain/rafts in GD2+SCLC cells, leading to the enhancement of cell proliferation and migration through increased phosphorylation of the mTOR complex 1 signaling axis.
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Affiliation(s)
- Nobutoshi Esaki
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Kasugai, Japan.,Departments of Biochemistry 2, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yuki Ohkawa
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Kasugai, Japan
| | - Noboru Hashimoto
- Departments of Biochemistry 2, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yuhsuke Tsuda
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Kasugai, Japan.,Departments of Biochemistry 2, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yuhsuke Ohmi
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Kasugai, Japan
| | - Robiul H Bhuiyan
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Kasugai, Japan
| | - Norihiro Kotani
- Department of Biochemistry, Saitama Medical University, Moroyama, Japan
| | - Koichi Honke
- Department of Biochemistry, Kochi University School of Medicine, Kochi, Japan
| | - Atsushi Enomoto
- Departments of Pathology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Masahide Takahashi
- Departments of Pathology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Keiko Furukawa
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Kasugai, Japan
| | - Koichi Furukawa
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Kasugai, Japan
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23
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Ji S, Tokizane K, Ohkawa Y, Ohmi Y, Banno R, Okajima T, Kiyama H, Furukawa K, Furukawa K. Increased a-series gangliosides positively regulate leptin/Ob receptor-mediated signals in hypothalamus of GD3 synthase-deficient mice. Biochem Biophys Res Commun 2016; 479:453-460. [DOI: 10.1016/j.bbrc.2016.09.077] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2016] [Accepted: 09/15/2016] [Indexed: 12/14/2022]
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24
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Yamaguchi T, Yamauchi Y, Furukawa K, Ohmi Y, Ohkawa Y, Zhang Q, Okajima T, Furukawa K. Expression of B4GALNT1, an essential glycosyltransferase for the synthesis of complex gangliosides, suppresses BACE1 degradation and modulates APP processing. Sci Rep 2016; 6:34505. [PMID: 27687691 PMCID: PMC5043288 DOI: 10.1038/srep34505] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2016] [Accepted: 09/15/2016] [Indexed: 11/09/2022] Open
Abstract
Alzheimer's disease (AD) is the most prevalent form of dementia characterized by the extracellular accumulation of amyloid β (Aβ) peptides, which are produced by proteolytic cleavages of amyloid precursor protein (APP). Gangliosides are involved in AD pathophysiology including Aβ deposition and APP processing, yet the detailed mechanisms are not fully understood. Here we examined how changes in the carbohydrate moiety of gangliosides alter APP processing in human melanoma cells, neuroectoderm-derived cells. We showed that forced expression of GD2, GM2 or GM1 (by introducing B4GALNT1 cDNA into cells not expressing this glycosyltransferase) results in increases of α- and β-site cleavages of APP with a prominent increase in β-cleavage. We also showed that β-site APP cleaving enzyme 1 (BACE1) protein is highly protected from the degradation in cells expressing these gangliosides, thereby increasing the expression of this protein. Unexpectedly, adding gangliosides exogenously altered neither BACE1 levels nor β-site cleavage. The stabilisation of BACE1 protein led to the increase of this protein in lipid rafts, where BACE1 processes APP. Based on the current results, we propose a hitherto undisclosed link between ganglioside expression and AD; the expression of B4GALNT1 positively regulates the β-site cleavage by mainly inhibiting the lysosomal degradation of BACE1 protein.
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Affiliation(s)
- Tokiaki Yamaguchi
- Department of Biochemistry II, Nagoya University Graduate School of Medicine, 65 Tsurumai, Showa-ku, Nagoya 466-8550, Japan
| | - Yoshio Yamauchi
- Department of Biochemistry II, Nagoya University Graduate School of Medicine, 65 Tsurumai, Showa-ku, Nagoya 466-8550, Japan
| | - Keiko Furukawa
- Department of Biomedical Sciences, Chubu University College of Life and Health Science, Kasugai 487-8501, Japan
| | - Yuhsuke Ohmi
- Department of Biochemistry II, Nagoya University Graduate School of Medicine, 65 Tsurumai, Showa-ku, Nagoya 466-8550, Japan
| | - Yuki Ohkawa
- Department of Biochemistry II, Nagoya University Graduate School of Medicine, 65 Tsurumai, Showa-ku, Nagoya 466-8550, Japan.,Department of Biomedical Sciences, Chubu University College of Life and Health Science, Kasugai 487-8501, Japan
| | - Qing Zhang
- Department of Biochemistry II, Nagoya University Graduate School of Medicine, 65 Tsurumai, Showa-ku, Nagoya 466-8550, Japan
| | - Tetsuya Okajima
- Department of Biochemistry II, Nagoya University Graduate School of Medicine, 65 Tsurumai, Showa-ku, Nagoya 466-8550, Japan
| | - Koichi Furukawa
- Department of Biochemistry II, Nagoya University Graduate School of Medicine, 65 Tsurumai, Showa-ku, Nagoya 466-8550, Japan.,Department of Biomedical Sciences, Chubu University College of Life and Health Science, Kasugai 487-8501, Japan
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25
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Kaneko K, Ohkawa Y, Hashimoto N, Ohmi Y, Kotani N, Honke K, Ogawa M, Okajima T, Furukawa K, Furukawa K. Neogenin, Defined as a GD3-associated Molecule by Enzyme-mediated Activation of Radical Sources, Confers Malignant Properties via Intracytoplasmic Domain in Melanoma Cells. J Biol Chem 2016; 291:16630-43. [PMID: 27288875 DOI: 10.1074/jbc.m115.708834] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2015] [Indexed: 11/06/2022] Open
Abstract
To investigate mechanisms for increased malignant properties in malignant melanomas by ganglioside GD3, enzyme-mediated activation of radical sources and subsequent mass spectrometry were performed using an anti-GD3 antibody and GD3-positive (GD3+) and GD3-negative (GD3-) melanoma cell lines. Neogenin, defined as a GD3-neighbored molecule, was largely localized in lipid/rafts in GD3+ cells. Silencing of neogenin resulted in the reduction of cell growth and invasion activity. Physical association between GD3 and neogenin was demonstrated by immunoblotting of the immunoprecipitates with anti-neogenin antibody from GD3+ cell lysates. The intracytoplasmic domain of neogenin (Ne-ICD) was detected in GD3+ cells at higher levels than in GD3- cells when cells were treated by a proteasome inhibitor but not when simultaneously treated with a γ-secretase inhibitor. Exogenous GD3 also induced increased Ne-ICD in GD3- cells. Overexpression of Ne-ICD in GD3- cells resulted in the increased cell growth and invasion activity, suggesting that Ne-ICD plays a role as a transcriptional factor to drive malignant properties of melanomas after cleavage with γ-secretase. γ-Secretase was found in lipid/rafts in GD3+ cells. Accordingly, immunocyto-staining revealed that GD3, neogenin, and γ-secretase were co-localized at the leading edge of GD3+ cells. All these results suggested that GD3 recruits γ-secretase to lipid/rafts, allowing efficient cleavage of neogenin. ChIP-sequencing was performed to identify candidates of target genes of Ne-ICD. Some of them actually showed increased expression after expression of Ne-ICD, probably exerting malignant phenotypes of melanomas under GD3 expression.
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Affiliation(s)
- Kei Kaneko
- From the Department of Biochemistry II, Nagoya University Graduate School of Medicine, Nagoya 466-0065
| | - Yuki Ohkawa
- Department of Life Biomedical Sciences, Chubu University College of Life and Health Sciences, Kasuigai, Aichi 487-8501
| | - Noboru Hashimoto
- From the Department of Biochemistry II, Nagoya University Graduate School of Medicine, Nagoya 466-0065
| | - Yuhsuke Ohmi
- From the Department of Biochemistry II, Nagoya University Graduate School of Medicine, Nagoya 466-0065
| | - Norihiro Kotani
- Department of Biochemistry, Faculty of Medicine, Saitama Medical University, Moroyama-machi, Iruma-gun, Saitama 350-0495, and
| | - Koichi Honke
- Department of Biochemistry, Kochi University School of Medicine, Kochi 783-8505, Japan
| | - Mitsutaka Ogawa
- From the Department of Biochemistry II, Nagoya University Graduate School of Medicine, Nagoya 466-0065
| | - Tetsuya Okajima
- From the Department of Biochemistry II, Nagoya University Graduate School of Medicine, Nagoya 466-0065
| | - Keiko Furukawa
- Department of Life Biomedical Sciences, Chubu University College of Life and Health Sciences, Kasuigai, Aichi 487-8501
| | - Koichi Furukawa
- From the Department of Biochemistry II, Nagoya University Graduate School of Medicine, Nagoya 466-0065, Department of Life Biomedical Sciences, Chubu University College of Life and Health Sciences, Kasuigai, Aichi 487-8501,
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26
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Bhuiyan RH, Kondo Y, Yamaguchi T, Tokuda N, Ohkawa Y, Hashimoto N, Ohmi Y, Yamauchi Y, Furukawa K, Okajima T, Furukawa K. Expression analysis of 0-series gangliosides in human cancer cell lines with monoclonal antibodies generated using knockout mice of ganglioside synthase genes. Glycobiology 2016; 26:984-998. [DOI: 10.1093/glycob/cww049] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2015] [Accepted: 04/13/2016] [Indexed: 11/14/2022] Open
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27
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Ohkawa Y, Momota H, Kato A, Hashimoto N, Tsuda Y, Kotani N, Honke K, Suzumura A, Furukawa K, Ohmi Y, Natsume A, Wakabayashi T, Furukawa K. Ganglioside GD3 Enhances Invasiveness of Gliomas by Forming a Complex with Platelet-derived Growth Factor Receptor α and Yes Kinase. J Biol Chem 2015; 290:16043-58. [PMID: 25940087 DOI: 10.1074/jbc.m114.635755] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2014] [Indexed: 11/06/2022] Open
Abstract
There have been a few studies on the ganglioside expression in human glioma tissues. However, the role of these gangliosides such as GD3 and GD2 has not been well understood. In this study we employed a genetically engineered mouse model of glioma to clarify the functions of GD3 in gliomas. Forced expression of platelet-derived growth factor B in cultured astrocytes derived from p53-deficient mice resulted in the expression of GD3 and GD2. GD3-positive astrocytes exhibited increased cell growth and invasion activities along with elevated phosphorylation of Akt and Yes kinase. By enzyme-mediated activation of radical sources reaction and mass spectrometry, we identified PDGF receptor α (PDGFRα) as a GD3-associated molecule. GD3-positive astrocytes showed a significant amount of PDGFRα in glycolipid-enriched microdomains/rafts compared with GD3-negative cells. Src kinase family Yes was co-precipitated with PDGFRα, and its pivotal role in the increased cell invasion of GD3-positive astrocytes was demonstrated by silencing with anti-Yes siRNA. Direct association between PDGFRα and GD3 was also shown, suggesting that GD3 forms ternary complex with PDGFRα and Yes. The fact that GD3, PDGFRα, and activated Yes were colocalized in lamellipodia and the edge of tumors in cultured cells and glioma tissues, respectively, suggests that GD3 induced by platelet-derived growth factor B enhances PDGF signals in glycolipid-enriched microdomain/rafts, leading to the promotion of malignant phenotypes such as cell proliferation and invasion in gliomas.
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Affiliation(s)
- Yuki Ohkawa
- From the Department of Biochemistry II, the Department of Neurosurgery, Nagoya University Graduate School of Medicine, 65 Tsurumai, Showa-ku, Nagoya 466-0065, Japan, the Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, 1200 Matsumoto-cho, Kasugai 487-8501, Japan
| | - Hiroyuki Momota
- the Department of Neurosurgery, Nagoya University Graduate School of Medicine, 65 Tsurumai, Showa-ku, Nagoya 466-0065, Japan
| | - Akira Kato
- the Department of Neurosurgery, Nagoya University Graduate School of Medicine, 65 Tsurumai, Showa-ku, Nagoya 466-0065, Japan
| | | | | | - Norihiro Kotani
- the Department of Biochemistry, Faculty of Medicine, Saitama Medical University, 38 Morohongo, Moroyama-machi, Iruma-gun, Saitama 350-0495, Japan
| | - Koichi Honke
- the Department of Biochemistry, Kochi University Medical School, Kohasu, Okou-cho, Nankoku, Kochi 783-8505, Japan
| | - Akio Suzumura
- the Department of Neuroimmunology, Research Institute of Environmental Medicine, Nagoya University, Furou-cho, Chikusa-ku, Nagoya 464-8601, Japan, and
| | - Keiko Furukawa
- From the Department of Biochemistry II, the Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, 1200 Matsumoto-cho, Kasugai 487-8501, Japan
| | | | - Atsushi Natsume
- the Department of Neurosurgery, Nagoya University Graduate School of Medicine, 65 Tsurumai, Showa-ku, Nagoya 466-0065, Japan
| | - Toshihiko Wakabayashi
- the Department of Neurosurgery, Nagoya University Graduate School of Medicine, 65 Tsurumai, Showa-ku, Nagoya 466-0065, Japan
| | - Koichi Furukawa
- From the Department of Biochemistry II, the Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, 1200 Matsumoto-cho, Kasugai 487-8501, Japan
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Ji S, Ohkawa Y, Tokizane K, Ohmi Y, Banno R, Furukawa K, Kiyama H, Furukawa K. b-series gangliosides crucially regulate leptin secretion in adipose tissues. Biochem Biophys Res Commun 2015; 459:189-195. [DOI: 10.1016/j.bbrc.2015.01.143] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2015] [Accepted: 01/29/2015] [Indexed: 12/11/2022]
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Ohmi Y, Ohkawa Y, Tajima O, Sugiura Y, Furukawa K, Furukawa K. Ganglioside deficiency causes inflammation and neurodegeneration via the activation of complement system in the spinal cord. J Neuroinflammation 2014; 11:61. [PMID: 24673754 PMCID: PMC3986855 DOI: 10.1186/1742-2094-11-61] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2013] [Accepted: 02/17/2014] [Indexed: 01/15/2023] Open
Abstract
Background Gangliosides, sialic acid-containing glycosphingolipids, are highly expressed in nervous systems of vertebrates and have been considered to be involved in the development, differentiation, and function of nervous tissues. Recent studies with gene-engineered animals have revealed that they play roles in the maintenance and repair of nervous tissues. In particular, knockout (KO) mice of various ganglioside synthase genes have exhibited progressive neurodegeneration with aging. However, neurological disorders and pathological changes in the spinal cord of these KO mice have not been reported to date. Therefore, we examined neurodegeneration in double knockout (DKO) mice of ganglioside GM2/GD2 synthase (B4GANLT1) and GD3 synthase (ST8SIA1) genes to clarify roles of gangliosides in the spinal cord. Methods Motor neuron function was examined by gait analysis, and sensory function was analyzed by von Frey test. Pathological changes were analyzed by staining tissue sections with Klüver-Barrera staining and by immunohistochemistry with F4/80 and glial fibrillary acidic protein (GFAP). Gene expression profiles were examined by using DNA micro-array of RNAs from the spinal cord of mice. Triple knockout mice were generated by mating DKO and complement component 3 (C3)-KO mice. Gene expression of the complement system and cytokines was examined by reverse transcription-polymerase chain reaction (RT-PCR) as a function of age. Results DKO mice showed progressive deterioration with aging. Correspondingly, they exhibited shrunk spinal cord, reduced thickness of spinal lamina II and III, and reduced neuronal numbers in spinal lamina IX, spinal lamina II, and spinal lamina I. Complement-related genes were upregulated in DKO spinal cord. Moreover, complement activation and inflammatory reactions were detected by GFAP-active astrocyte, microglial accumulation, and increased inflammatory cytokines such as tumor necrosis factor-alpha (TNFα) and interleukin-1-beta (IL-1β). Triple knockout mice showed restoration of reduced neuron numbers in the spinal cord of DKO mice, getting close to levels of wild-type mice. Conclusions Disruption in the architecture of lipid rafts in the spinal cord was not so prominent, suggesting that mechanisms distinct from those reported might be involved in the complement activation in the spinal cord of DKO mice. Gene profiling revealed that inflammation and neurodegeneration in the spinal cord of DKO mice are, at least partly, dependent on complement activation.
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Affiliation(s)
| | | | | | | | | | - Koichi Furukawa
- Department of Biochemistry II, Nagoya University Graduate School of Medicine, 65 Tsurumai, Showa-ku, Nagoya 466-0065, Japan.
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Yao D, McGonigal R, Barrie JA, Cappell J, Cunningham ME, Meehan GR, Fewou SN, Edgar JM, Rowan E, Ohmi Y, Furukawa K, Furukawa K, Brophy PJ, Willison HJ. Neuronal expression of GalNAc transferase is sufficient to prevent the age-related neurodegenerative phenotype of complex ganglioside-deficient mice. J Neurosci 2014; 34:880-91. [PMID: 24431446 PMCID: PMC3891965 DOI: 10.1523/jneurosci.3996-13.2014] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [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: 09/17/2013] [Revised: 11/15/2013] [Accepted: 11/23/2013] [Indexed: 11/21/2022] Open
Abstract
Gangliosides are widely expressed sialylated glycosphingolipids with multifunctional properties in different cell types and organs. In the nervous system, they are highly enriched in both glial and neuronal membranes. Mice lacking complex gangliosides attributable to targeted ablation of the B4galnt1 gene that encodes β-1,4-N-acetylegalactosaminyltransferase 1 (GalNAc-transferase; GalNAcT(-/-)) develop normally before exhibiting an age-dependent neurodegenerative phenotype characterized by marked behavioral abnormalities, central and peripheral axonal degeneration, reduced myelin volume, and loss of axo-glial junction integrity. The cell biological substrates underlying this neurodegeneration and the relative contribution of either glial or neuronal gangliosides to the process are unknown. To address this, we generated neuron-specific and glial-specific GalNAcT rescue mice crossed on the global GalNAcT(-/-) background [GalNAcT(-/-)-Tg(neuronal) and GalNAcT(-/-)-Tg(glial)] and analyzed their behavioral, morphological, and electrophysiological phenotype. Complex gangliosides, as assessed by thin-layer chromatography, mass spectrometry, GalNAcT enzyme activity, and anti-ganglioside antibody (AgAb) immunohistology, were restored in both neuronal and glial GalNAcT rescue mice. Behaviorally, GalNAcT(-/-)-Tg(neuronal) retained a normal "wild-type" (WT) phenotype throughout life, whereas GalNAcT(-/-)-Tg(glial) resembled GalNAcT(-/-) mice, exhibiting progressive tremor, weakness, and ataxia with aging. Quantitative electron microscopy demonstrated that GalNAcT(-/-) and GalNAcT(-/-)-Tg(glial) nerves had significantly increased rates of axon degeneration and reduced myelin volume, whereas GalNAcT(-/-)-Tg(neuronal) and WT appeared normal. The increased invasion of the paranode with juxtaparanodal Kv1.1, characteristically seen in GalNAcT(-/-) and attributed to a breakdown of the axo-glial junction, was normalized in GalNAcT(-/-)-Tg(neuronal) but remained present in GalNAcT(-/-)-Tg(glial) mice. These results indicate that neuronal rather than glial gangliosides are critical to the age-related maintenance of nervous system integrity.
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Affiliation(s)
- Denggao Yao
- Institute of Infection, Immunity, and Inflammation, College of Medical Veterinary and Life Sciences, University of Glasgow, Glasgow, G12 8TA, United Kingdom
| | - Rhona McGonigal
- Institute of Infection, Immunity, and Inflammation, College of Medical Veterinary and Life Sciences, University of Glasgow, Glasgow, G12 8TA, United Kingdom
| | - Jennifer A. Barrie
- Institute of Infection, Immunity, and Inflammation, College of Medical Veterinary and Life Sciences, University of Glasgow, Glasgow, G12 8TA, United Kingdom
| | - Joanna Cappell
- Institute of Infection, Immunity, and Inflammation, College of Medical Veterinary and Life Sciences, University of Glasgow, Glasgow, G12 8TA, United Kingdom
| | - Madeleine E. Cunningham
- Institute of Infection, Immunity, and Inflammation, College of Medical Veterinary and Life Sciences, University of Glasgow, Glasgow, G12 8TA, United Kingdom
| | - Gavin R. Meehan
- Institute of Infection, Immunity, and Inflammation, College of Medical Veterinary and Life Sciences, University of Glasgow, Glasgow, G12 8TA, United Kingdom
| | - Simon N. Fewou
- Institute of Infection, Immunity, and Inflammation, College of Medical Veterinary and Life Sciences, University of Glasgow, Glasgow, G12 8TA, United Kingdom
| | - Julia M. Edgar
- Institute of Infection, Immunity, and Inflammation, College of Medical Veterinary and Life Sciences, University of Glasgow, Glasgow, G12 8TA, United Kingdom
| | - Edward Rowan
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow G4 0NR, United Kingdom
| | - Yuhsuke Ohmi
- Department of Biochemistry II, Nagoya University School of Medicine, Nagoya 466-0065, Japan, and
| | - Keiko Furukawa
- Department of Biochemistry II, Nagoya University School of Medicine, Nagoya 466-0065, Japan, and
| | - Koichi Furukawa
- Department of Biochemistry II, Nagoya University School of Medicine, Nagoya 466-0065, Japan, and
| | - Peter J. Brophy
- Centre for Neuroregeneration, University of Edinburgh, Edinburgh EH16 4SB, United Kingdom
| | - Hugh J. Willison
- Institute of Infection, Immunity, and Inflammation, College of Medical Veterinary and Life Sciences, University of Glasgow, Glasgow, G12 8TA, United Kingdom
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Furukawa K, Hamamura K, Ohkawa Y, Ohmi Y, Furukawa K. Disialyl gangliosides enhance tumor phenotypes with differential modalities. Glycoconj J 2012; 29:579-84. [PMID: 22763744 DOI: 10.1007/s10719-012-9423-0] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2012] [Revised: 06/20/2012] [Accepted: 06/21/2012] [Indexed: 01/22/2023]
Abstract
Sialic acid-containing glycosphingolipids, gangliosides are highly expressed in human cancer cells and regulate cell signals transduced via membrane microdomains. Generally, disialyl gangliosides enhance tumor phenotypes, while monosialyl gangliosides suppress them. In particular, gangliosides GD3 and GD2 are highly expressed in melanomas and small cell lung cancer cells, and their expression cause increased cell growth and invasion. In osteosarcomas, expression of GD3 and GD2 also enhanced cell invasion and motility, and caused increased phosphorylation of focal adhesion kinase and paxillin. In addition to focal adhesion kinase, Lyn kinase was also activated by GD3/GD2 expression, leading to the phosphorylation of paxillin. In contrast with melanoma cells, osteosarcomas showed reduced cell adhesion with increased phosphorylation of paxillin. Thus, increased expression of GD3/GD2 caused enhanced activation of signaling molecules, leading to distinct phenotypes between melanomas and osteosarcomas, i.e. increased and decreased adhesion activity. Thus, whole features of glycolipid-enriched microdomain/rafts formed in the individual cancer types seem to determine the main signaling pathway and biological outcome.
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Affiliation(s)
- Koichi Furukawa
- Department of Biochemistry II, Nagoya University Graduate School of Medicine, Nagoya, Japan,
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Abstract
Carbohydrates on the glycoproteins and glycosphingolipids expressed on the cell surface membrane play crucial roles in the determination of cell fates by being involved in the fine tuning of cell signalling as reaction molecules in the front line to various extrinsic stimulants. In glycoproteins, modification of proteins is performed by substitution of sugar chains to one or multiple sites of individual proteins, leading to quantitative and qualitative changes of receptor functions in the cell membrane. As for glycosphingolipids, majority of them consist of two moieties, i.e. carbohydrates and ceramides, and are localized in the microdomains such as lipid rafts or detergent-resistant microdomains. They generate and/or modulate cell signals to determine the cell fates by interacting with various carbohydrate-recognizing proteins. Modes of glycosylation and mechanisms by which glycosylation is involved in the regulation of cell signals are now hot subjects in glycobiology.
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Affiliation(s)
- Koichi Furukawa
- Department of Biochemistry II, Nagoya University Graduate School of Medicine, Showa-ku, Nagoya, Japan.
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Ohmi Y, Ohkawa Y, Yamauchi Y, Tajima O, Furukawa K, Furukawa K. Essential roles of gangliosides in the formation and maintenance of membrane microdomains in brain tissues. Neurochem Res 2012; 37:1185-91. [PMID: 22488331 DOI: 10.1007/s11064-012-0764-7] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2011] [Revised: 03/09/2012] [Accepted: 03/22/2012] [Indexed: 01/31/2023]
Abstract
Gangliosides are considered to be involved in the maintenance and repair of nervous tissues. Recently, novel roles of gangliosides in the regulation of complement system were reported. Here we summarized roles of gangliosides in the formation and maintenance of membrane microdomains in brain tissues by comparing complement activation, inflammatory reaction and disruption of glycolipid-enriched microdomain (GEM)/rafts among several mutant mice of ganglioside synthases. Depending on the defects in ganglioside compositions, corresponding up-regulation of complement-related genes, proliferation of astrocytes and infiltration of microglia were found with gradual severity. Immunoblotting of fractions separated by sucrose density gradient ultracentrifugation revealed that DAF and NCAM having GPI-anchors tended to disappear from the raft fraction with intensities of DKO > GM2/GD2 synthase KO > GD3 synthase KO > WT. The lipid raft markers tended to disperse from the raft fractions with similar intensities. Phospholipids and cholesterol also tended to decrease in GEM/rafts in GM2/GD2 synthase KO and DKO, although total amounts were almost equivalent. All these results indicate that GEM/rafts architecture is destroyed by ganglioside deficiency with gradual intensity depending on the degree of defects of their compositions. Implication of inflammation caused by deficiency of gangliosides in various neurodegenerative diseases was discussed.
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Affiliation(s)
- Yuhsuke Ohmi
- Department of Biochemistry II, Nagoya University Graduate School of Medicine, 65 Tsurumai, Showa-ku, Nagoya 466-0065, Japan
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Nishiguchi KM, Yasuma TR, Tomida D, Nakamura M, Ishikawa K, Kikuchi M, Ohmi Y, Niwa T, Hamajima N, Furukawa K, Terasaki H. C9-R95X polymorphism in patients with neovascular age-related macular degeneration. Invest Ophthalmol Vis Sci 2012; 53:508-12. [PMID: 22190594 DOI: 10.1167/iovs.11-8425] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
PURPOSE A non-sense mutation at codon 95 in the gene encoding complement factor C9 (C9-R95X) is found most frequently among Japanese. The authors investigated the association between C9-R95X and Japanese patients with neovascular age-related macular degeneration (AMD) and polypoidal choroidal vasculopathy (PCV). METHODS The presence of the C9-R95X polymorphism was assessed by direct sequencing in Japanese patients with either PCV (n = 105) or neovascular AMD (n = 198) and 396 control subjects. Multivariate regression analyses were conducted. Photocoagulation was applied in the eyes of mice with a heterozygous defect in the C3 gene and control wild-type mice. Photocoagulation was also applied to wild-type mice before either anti-C9 antibody or isotype IgG was injected into the eyes. The eyes were collected later for measurement of vascular endothelial growth factor (VEGF) and histological evaluation of choroidal neovascularization (CNV). RESULTS The frequency of those with one or two C9-R95X variants was lower in neovascular AMD (2.02%) than in PCV (5.71%) and controls (6.05%). The presence of C9-R95X conferred a 4.7-fold reduction (95% confidence interval, 1.2-18.1; P = 0.021) in the risk for neovascular AMD after adjusting for the major AMD risk factors. A heterozygous defect in the C3 gene was associated with the reduced growth of laser-induced CNV, as was intraocular injection of anti-C9 antibody. This reduced CNV growth was accompanied by a decreased level of secreted VEGF in the intraocular fluid. CONCLUSIONS These findings support the notion that the haploinsufficiency of C9, a terminal complement complex component, engenders reduced intraocular secretion of VEGF and decreased risk for CNV development.
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Affiliation(s)
- Koji M Nishiguchi
- Department of Ophthalmology, Nagoya University School of Medicine, 65 Tsurumai-Cho, Showa-Ku, Nagoya, Japan.
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Ohkawa Y, Ohmi Y, Tajima O, Yamauchi Y, Furukawa K, Furukawa K. Wisp2/CCN5 up-regulated in the central nervous system of GM3-only mice facilitates neurite formation in Neuro2a cells via integrin-Akt signaling. Biochem Biophys Res Commun 2011; 411:483-9. [PMID: 21723256 DOI: 10.1016/j.bbrc.2011.06.118] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2011] [Accepted: 06/17/2011] [Indexed: 01/01/2023]
Abstract
Wisp2/CCN5 belongs to CCN family proteins which are involved in cell proliferation, angiogenesis, tumorigenesis and wound healing. Although a number of studies on the roles of Wisp2/CCN5 in cancers have been reported, no study on the expression and function of Wisp2/CCN5 in the central nervous system has been reported. In this study, we focused on Wisp2/CCN5 that was up-regulated in nervous tissues in GM3-only mice. Over-expression of Wisp2/CCN5 enhanced neurite outgrowth potently after serum withdrawal with increased phosphorylation levels of Akt and ERKs. When cells were cultured with recombinant Wisp2/CCN5 proteins, more and longer neurites were formed than in the controls. Thus, we demonstrated for the first time that Wisp2/CCN5 facilitates neurite formation in a mouse neuroblastoma cell line, Neuro2a. Akt phosphorylation induced by recombinant Wisp2/CCN5 was suppressed after knockdown of integrin β1. Moreover, Wisp2/CCN5-over-expressing cells were resistant to apoptosis induced by H(2)O(2). These results suggested that secreted Wisp2/CCN5 induces Akt and ERK phosphorylation via integrins, and consequently facilitates neurite formation and conferred resistance to apoptosis. Up-regulation of Wisp2/CCN5 in GM3-only mice should be, therefore, a reaction to protect nervous tissues from neurodegeneration caused by ganglioside deficiency.
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Affiliation(s)
- Yuki Ohkawa
- Department of Biochemistry II, Nagoya University Graduate School of Medicine, 65 Tsurumai, Showa-ku, Nagoya 466-0065, Japan.
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Furukawa K, Ohmi Y, Ohkawa Y, Tokuda N, Tajima O, Furukawa K. [Molecular mechanisms for the regulation of nervous systems with glycosphingolipids]. Seikagaku 2011; 83:169-178. [PMID: 21516682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Affiliation(s)
- Koichi Furukawa
- Department of Biochemistry II, Nagoya University Graduate School of Medicine, Nagoya, Japan
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Dong Y, Ikeda K, Hamamura K, Zhang Q, Kondo Y, Matsumoto Y, Ohmi Y, Yamauchi Y, Furukawa K, Taguchi R, Furukawa K. GM1 / GD1b / GA1 synthase expression results in the reduced cancer phenotypes with modulation of composition and raft-localization of gangliosides in a melanoma cell line. Cancer Sci 2011; 101:2039-47. [PMID: 20594196 DOI: 10.1111/j.1349-7006.2010.01613.x] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Gangliosides are expressed in neuroectoderm-derived tumors, and seemed to play roles in the regulation of cancer properties. To examine the behavior and roles of individual gangliosides, GM1/GD1b/GA1 synthase cDNA was introduced into the melanoma cell line SK-MEL-37, and changes in tumor phenotypes were analyzed. The transfectant cells showed neo-expression of GD1b, GT1b, and GM1, and reduced expression of GM3, GM2, GD2, and GD3. Function analyses revealed that the transfectant cells had definite reduction in cell growth and invasion. Tyrosine-phosphorylation levels of proteins such as p130Cas and paxillin were also reduced in the transfectants. These results suggested that the expression of GM1/GD1b/GA1 synthase resulted in the suppression of tumor properties. In the analyses of the floating patterns of gangliosides using fractions from sucrose density gradient ultracentrifugation of TritonX-100 extracts, the majority of gangliosides were found in glycolipid-enriched microdomain (GEM)/raft fractions, while GD3, GD1b, and GT1b in the transfectant cells tended to disperse to non-GEM/raft fractions. Furthermore, GD3, GD1b, and GT1b in non-GEM/raft dominantly had unsaturated fatty acids, while those in GEM/rafts contained more saturated forms than in non-GEM/rafts. This might be a mechanism for the decreased tumor properties in the transfectants of GM1/GD1b/GA1 synthase cDNA.
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Affiliation(s)
- Yu Dong
- Department of Biochemistry II, Nagoya University Graduate School of Medicine, Nagoya, Japan
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Ohmi Y, Tajima O, Ohkawa Y, Yamauchi Y, Sugiura Y, Furukawa K, Furukawa K. Gangliosides are essential in the protection of inflammation and neurodegeneration via maintenance of lipid rafts: elucidation by a series of ganglioside-deficient mutant mice. J Neurochem 2011; 116:926-35. [PMID: 21214571 DOI: 10.1111/j.1471-4159.2010.07067.x] [Citation(s) in RCA: 75] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Gangliosides are considered to be involved in the maintenance and repair of nervous tissues. Recently, novel roles of gangliosides in the regulation of complement system were reported by us. In this study, we compared complement activation, inflammatory reaction and disruption of glycolipid-enriched microdomain (GEM)/rafts among various mutant mice of ganglioside synthases, i.e. GM2/GD2 synthase knockout (KO), GD3 synthase KO, double KO (DKO) of these two enzymes and wild type. Up-regulation of complement-related genes, deposits of C1q, proliferation of astrocytes and infiltration of microglia also showed similar gradual severity depending on the defects in ganglioside compositions. In the expression of inflammatory cytokines such as IL-1β and tumor necrosis factor α, only DKO showed definite up-regulation. Immunoblotting of fractions from sucrose density gradient ultracentrifugation revealed that lipid raft markers such as caveolin-1 and flotillin-1 tended to disperse from the raft fractions with intensities of DKO > GM2/GD2 synthase KO > GD3 synthase KO > wild type. Decay-accelerating factor and neural cell adhesion molecule tended to disappear from the raft fraction. Phospholipids and cholesterol also tended to decrease in GEM/rafts in GM2/GD2 synthase KO and DKO, although total amounts were almost equivalent. These results indicate that destruction of GEM/rafts is caused by ganglioside deficiency with gradual intensity depending on the degree of defects of their compositions.
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Affiliation(s)
- Yuhsuke Ohmi
- Department of Biochemistry II, Nagoya University Graduate School of Medicine, Showa-ku, Nagoya, Japan
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Ohkawa Y, Miyazaki S, Hamamura K, Kambe M, Miyata M, Tajima O, Ohmi Y, Yamauchi Y, Furukawa K, Furukawa K. Ganglioside GD3 enhances adhesion signals and augments malignant properties of melanoma cells by recruiting integrins to glycolipid-enriched microdomains. J Biol Chem 2010; 285:27213-27223. [PMID: 20581115 DOI: 10.1074/jbc.m109.087791] [Citation(s) in RCA: 82] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Ganglioside GD3 is widely expressed in human malignant melanoma cell lines and tumors. Previously, we reported that GD3+ cells show stronger tyrosine phosphorylation of focal adhesion kinase (FAK), p130(Cas), and paxillin when treated with fetal calf serum than GD3- cells. In this study, we analyzed the changes in the signals mediated by the interaction between integrins and extracellular matrices (ECM) to clarify how GD3 enhances cell signals in the vicinity of the cell membrane. An adhesion assay with a real time cell electronic sensing system revealed that GD3+ cells had stronger adhesion to all extracellular matrices examined. In particular, GD3+ cells attached more strongly to collagen type I and type IV than controls. Correspondingly, they showed stronger tyrosine phosphorylation of FAK and paxillin during adhesion to collagen type I. In the floating pattern of detergent extracts, a high level of integrin beta1 was found in glycolipid-enriched microdomain (GEM)/rafts in GD3+ cells before adhesion, whereas a smaller amount of integrin beta1 was detected in the GEM/rafts of controls. Some phosphorylated forms of FAK as well as total FAK were found in GEM/rafts during cell adhesion only in GD3+ cells. Another signal consisting of integrin-linked kinase/Akt was also activated during adhesion more strongly in GD3+ cells than in controls. In double stained GD3+ cells, GD3 and integrin beta1 co-localized at the focal adhesion with a punctate pattern. All these results suggested that integrins assembled and formed a cluster in GEM/rafts, leading to the enhanced signaling and malignant properties under GD3 expression.
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Affiliation(s)
- Yuki Ohkawa
- Department of Biochemistry II, Nagoya University Graduate School of Medicine, 65 Tsurumai, Showa-ku, Nagoya 466-0065
| | - Sayaka Miyazaki
- Department of Biochemistry II, Nagoya University Graduate School of Medicine, 65 Tsurumai, Showa-ku, Nagoya 466-0065
| | - Kazunori Hamamura
- Department of Biochemistry II, Nagoya University Graduate School of Medicine, 65 Tsurumai, Showa-ku, Nagoya 466-0065
| | - Mariko Kambe
- Department of Biomedical Sciences, College of Life and Health Sciences, Chubu University, 1200 Matsumoto-cho, Kasugai 487-8501, Japan; Health Science Hills, College of Life and Health Sciences, Chubu University, 1200 Matsumoto-cho, Kasugai 487-8501, Japan
| | - Maiko Miyata
- Department of Biomedical Sciences, College of Life and Health Sciences, Chubu University, 1200 Matsumoto-cho, Kasugai 487-8501, Japan
| | - Orie Tajima
- Department of Biochemistry II, Nagoya University Graduate School of Medicine, 65 Tsurumai, Showa-ku, Nagoya 466-0065; Department of Biomedical Sciences, College of Life and Health Sciences, Chubu University, 1200 Matsumoto-cho, Kasugai 487-8501, Japan
| | - Yuhsuke Ohmi
- Department of Biochemistry II, Nagoya University Graduate School of Medicine, 65 Tsurumai, Showa-ku, Nagoya 466-0065
| | - Yoshio Yamauchi
- Department of Biochemistry II, Nagoya University Graduate School of Medicine, 65 Tsurumai, Showa-ku, Nagoya 466-0065
| | - Koichi Furukawa
- Department of Biochemistry II, Nagoya University Graduate School of Medicine, 65 Tsurumai, Showa-ku, Nagoya 466-0065.
| | - Keiko Furukawa
- Department of Biochemistry II, Nagoya University Graduate School of Medicine, 65 Tsurumai, Showa-ku, Nagoya 466-0065; Department of Biomedical Sciences, College of Life and Health Sciences, Chubu University, 1200 Matsumoto-cho, Kasugai 487-8501, Japan; Health Science Hills, College of Life and Health Sciences, Chubu University, 1200 Matsumoto-cho, Kasugai 487-8501, Japan.
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Tajima O, Egashira N, Ohmi Y, Fukue Y, Mishima K, Iwasaki K, Fujiwara M, Sugiura Y, Furukawa K, Furukawa K. Dysfunction of muscarinic acetylcholine receptors as a substantial basis for progressive neurological deterioration in GM3-only mice. Behav Brain Res 2010; 206:101-8. [DOI: 10.1016/j.bbr.2009.09.005] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2009] [Revised: 08/26/2009] [Accepted: 09/02/2009] [Indexed: 10/20/2022]
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Kittaka D, Itoh MI, Ohmi Y, Kondo Y, Fukumoto S, Urano T, Tajima O, Furukawa K, Furukawa K. Impaired hypoglossal nerve regeneration in mutant mice lacking complex gangliosides: down-regulation of neurotrophic factors and receptors as possible mechanisms. Glycobiology 2008; 18:509-16. [PMID: 18480155 DOI: 10.1093/glycob/cwn032] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [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: 12/16/2023] Open
Abstract
Gangliosides, sialic acid-containing glycosphingolipids, have been considered to play roles as neurotrophic factors. Exogenous gangliosides added to the culture medium of neuronal cells or injected in artificially injured sites of nerve tissues actually showed neurotrophic factor-like effects such as neurite extension and alleviation of nerve tissue deterioration. In this study, neuroregeneration in the mutant mice lacking complex gangliosides was examined. To determine whether the nervous system maintains regenerative activity in the long-term absence of complex gangliosides, we analyzed hypoglossal nerve regeneration after axotomy in the mutant mice of GM2/GD2 synthase. These mice exhibited marked impairment of regenerative activity both in the number of surviving neurons and in the number of peroxidase-positive neurons. Moreover, reduced levels of gene expression of neurotrophic factors and their receptors including CNTF, p75 NTR, TrkB, and others in hypoglossal neurons were observed in real-time reverse transcription-polymerase chain reaction combined with laser capture microdissection, suggesting that these molecules are, at least partly, involved in the regeneration of lesioned nerves and that their expression levels are precisely controlled in the presence of intact expression of complex gangliosides.
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Affiliation(s)
- Daiji Kittaka
- Department of Biochemistry II, Graduate School of Medicine, Nagoya University School of Medicine, Nagoya 466-0065, Japan
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42
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Ohmi Y, Sato M, Ohtsuka M. Direct subcloning of target region from BAC insert using restriction enzymes that produce non-identical cohesive ends. ACTA ACUST UNITED AC 2006:141-2. [PMID: 17150518 DOI: 10.1093/nass/48.1.141] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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: 11/15/2022]
Abstract
Type IIS or interrupted palindrome restriction endonuclease digestion produces unique cohesive ends. Utilization of this feature of BglI, SfiI and BstXI has led to direct subcloning of 28.5-kb and 22.9-kb regions, which contains candidate genes for medaka Double anal fin (Da) mutant, from a 229-kb BAC insert. This method does not contain gel-fractionation of the fragments and time-consuming screening process using hybridization. Non-recombinant backgrounds were distinguished from recombinant clones by introducing GFPuv gene into the subcloning vector. This strategy was successfully applicable even when the target region was cut into three fragments by these enzymes.
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Affiliation(s)
- Yuhsuke Ohmi
- Division of Basic Molecular Science and Molecular Medicine, Tokai University School of Medicine, Bohseidai, Isehara, Kanagawa 259-1193, Japan
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43
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Sasakura Y, Lee U, Ohmi Y, Kubota N. P.234 A case of rhabdomyosarcoma of upper jaw in adult. J Craniomaxillofac Surg 2006. [DOI: 10.1016/s1010-5182(06)60742-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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44
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Sato M, Ohtsuka M, Ohmi Y. Usefulness of repeated GenomiPhi, a phi29 DNA polymerase-based rolling circle amplification kit, for generation of large amounts of plasmid DNA. ACTA ACUST UNITED AC 2005; 22:129-32. [PMID: 16023891 DOI: 10.1016/j.bioeng.2005.05.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [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: 06/25/2004] [Revised: 04/21/2005] [Accepted: 05/11/2005] [Indexed: 11/19/2022]
Abstract
The GenomiPhi DNA Amplification Kit employs rolling circle amplification (RCA) using phi29 polymerase, dNTPs, and random hexamers. We demonstrated that repeated RCA (at least three times) is useful for high-fidelity amplification of large amounts of plasmid DNA.
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Affiliation(s)
- Masahiro Sato
- The Institute of Medical Sciences, Tokai University, Bohseidai, Isehara, Kanagawa 259-1193, Japan.
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45
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Sato M, Ohtsuka M, Ohmi Y. Repeated GenomiPhi, phi29 DNA polymerase-based rolling circle amplification, is useful for generation of large amounts of plasmid DNA. ACTA ACUST UNITED AC 2004:147-8. [PMID: 17150521 DOI: 10.1093/nass/48.1.147] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [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: 11/13/2022]
Abstract
The GenomiPhi DNA Amplification Kit (Amersham Biosciences Co., Piscataway, NJ, USA) uses a novel, isothermal DNA amplification technique for production of microgram quantities of DNA from picograms of starting material. In this study, we tested whether repeated reactions using the kit would enhance high-fidelity amplification of a small amount (10 ng) of plasmid DNA containing enhanced green fluorescent protein (EGFP) cDNA. Approximately 4.7 x 10(9)-fold amplification of plasmid DNA was achieved after 3 repeated reactions, and the RCA products were sufficient for EGFP expression in cells. Based on the preliminary results, repeated reactions using the kit appears feasible for amplification of the entire genome of organisms or cells (such a sperms and oocytes) carrying very small amounts of DNA.
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Affiliation(s)
- Masahiro Sato
- The Institute of Medical Sciences, Tokai University, Bohseidai, Isehara, Kanagawa 259-1193, Japan
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46
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Matsumoto G, Sasakuri K, Tsukinoki K, Ohmi Y, Lee U, Shindo J. Growth of human squamous cell carcinoma xenografts in mice is inhibited by local angiostatin gene therapy. Oral Oncol 2002; 38:543-8. [PMID: 12167431 DOI: 10.1016/s1368-8375(01)00126-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [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: 11/16/2022]
Abstract
The possibility of inhibiting tumor growth by blocking the formation of new tumor vessels has recently received attention. Antiangiogenic tumor therapies have recently attracted intense interest because of their direct endothelial targeting and the absence of drug resistance. Local antiangiogenic gene therapy for cancer offers a potential way to achieve sustained therapeutic release of antiangiogenic substances. As a step toward this goal, we used liposomes complexed to angiostatin cDNA and targeted to human squamous cell carcinoma cell lines in vivo. Tumor cells expressing angiostatin after local gene transfer showed markedly reduced vascularity and contained many apoptotic tumor cells. These results demonstrate the potential utility of liposome-derived angiostatin for adjuvant therapy of oral cancer in humans.
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Affiliation(s)
- G Matsumoto
- First Department of Oral and Maxillofacial Surgery, Kanagawa Dental College, 82 Inaoka, Yokosuka, Kanagawa, Japan.
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Abstract
Tumor growth is an angiogenesis-dependent process and therapeutic strategies aimed at inhibiting angiogenesis are theoretically attractive. Angiostatin has been shown to potently inhibit endothelial proliferation in vitro and tumor growth in vivo. We now show that a shift in the balance of tumor angiogenesis by gene transfer of a cDNA coding for mouse angiostatin into mouse squamous cell carcinoma NRS-1 and SCC-VII cells suppresses tumor growth in vivo. The inhibition of an angiostatin-transfected tumor was accompanied by a marked reduction in vascularity and the presence of many apoptotic tumor cells. However, transfected-angiostatin cDNA does not affect the expression of the vascular endothelial growth factor (VEGF) and VEGF-R2 in the vascular endothelium. The inhibition mechanisms of neovascularization may be mediated independent of VEGF:VEGF-R2 complex. Our data may provide a useful approach for human oral cancer therapy by gene therapy with angiostatin.
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MESH Headings
- Angiostatins
- Animals
- Apoptosis/physiology
- Blotting, Northern/methods
- Blotting, Western/methods
- Carcinoma, Squamous Cell/blood supply
- Carcinoma, Squamous Cell/genetics
- Carcinoma, Squamous Cell/therapy
- DNA, Complementary
- Endothelial Growth Factors/metabolism
- Endothelium, Vascular/drug effects
- Endothelium, Vascular/metabolism
- Female
- Gene Transfer Techniques
- Genetic Therapy/methods
- Lymphokines/metabolism
- Mice
- Mice, Inbred C3H
- Peptide Fragments/genetics
- Peptide Fragments/therapeutic use
- Plasminogen/genetics
- Plasminogen/therapeutic use
- Platelet Endothelial Cell Adhesion Molecule-1/metabolism
- Polymerase Chain Reaction/methods
- Receptor Protein-Tyrosine Kinases/metabolism
- Receptors, Growth Factor/metabolism
- Receptors, Vascular Endothelial Growth Factor
- Tumor Cells, Cultured
- Vascular Endothelial Growth Factor A
- Vascular Endothelial Growth Factors
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Affiliation(s)
- G Matsumoto
- First Department of Oral Surgery, Kanagawa Dental College, 82 Inaoka, Yokosuka, Kanagawa 238-8580, Japan.
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48
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Sugiyama T, Hirano Y, Ushiyama T, Suzuki K, Fujita K, Ohmi Y. [Burned-out testicular tumor: a case report]. Hinyokika Kiyo 2000; 46:829-32. [PMID: 11193307] [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] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Abstract
A 29-year-old man was referred to our hospital with loss of appetite and a left lower abdominal mass. A small nodule was palpable in his left testis and ultrasonographic examination demonstrated that the nodule was low echoic. Computed tomography showed a large mass in his left retroperitoneal space. We thought the mass was a metastatic lesion from a testicular tumor. Left orchiectomy was done and microscopic examination revealed no viable tumor cells. Only fibrous tissue, small calcified areas, and hyaline bodies were found. As tumor markers were normalized after 3 courses of chemotherapy with bleomycin, etoposide, and cisplatine, the retroperitoneal mass was removed with the left kidney. It consisted of embryonal carcinoma, mature teratoma, and yolk sac tumor. One course of adjuvant chemotherapy was done and the patient has since been free from recurrence. We suppose that the tumor was a so-called 'burned-out' testicular tumor.
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Affiliation(s)
- T Sugiyama
- Department of Urology, Hamamatsu University School of Medicine
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49
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Watanabe K, Ohmi Y, Adachi H, Satoh T. [Propofol potentiates the neuromuscular blocking effects of vecuronium in man]. Masui 2000; 49:2-6. [PMID: 10689835] [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] [Subscribe] [Scholar Register] [Indexed: 02/15/2023]
Abstract
The possible interaction between vecuronium and propofol has been investigated in 40 healthy (ASA I-II) patients. They were randomly allocated to two groups according to the method of anesthesia; continuous propofol infusion group (propofol) and droperidol and fentanyl group (control). The electromyographic response of abductor digiti minimi was monitored at 20-s interval after train-of-four stimulations of the ulnar nerve. The ED50 and ED95 (dose required to produce a 50% and 95% depression of twitch tension, respectively,) of vecuronium in the propofol group (n = 20) were 29.4 +/- 0.5 and 56.6 +/- 2.1 micrograms.kg-1 (mean +/- SEM), and in the control group (n = 20), 36.7 +/- 1.8 and 73.6 +/- 5.2 micrograms.kg-1, respectively. Under propofol anesthesia, the cumulative dose-response curves of vecuronium were shifted to the left when compared with control ED50 and the slope showed that propofol had potentiated the action of vecuronium.
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Affiliation(s)
- K Watanabe
- Department of Anesthesiology, National Defense Medical School, Tokorozawa
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50
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Nishimura T, Iwakabe K, Sekimoto M, Ohmi Y, Yahata T, Nakui M, Sato T, Habu S, Tashiro H, Sato M, Ohta A. Distinct role of antigen-specific T helper type 1 (Th1) and Th2 cells in tumor eradication in vivo. J Exp Med 1999; 190:617-27. [PMID: 10477547 PMCID: PMC2195611 DOI: 10.1084/jem.190.5.617] [Citation(s) in RCA: 334] [Impact Index Per Article: 13.4] [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] [Indexed: 11/25/2022] Open
Abstract
The role of T helper type 1 (Th1) and Th2 cells in tumor immunity was investigated using Th cells induced from ovalbumin (OVA)-specific T cell receptor transgenic mice. Although Th1 cells exhibited stronger cytotoxicity than Th2 cells, both cell types completely eradicated tumors when transferred into mice bearing A20 tumor cells transfected with the OVA gene (A20-OVA). Th1 cells eradicated the tumor mass by inducing cellular immunity, whereas Th2 cells destroyed the tumor by inducing tumor necrosis. Both Th1 and Th2 cells required CD8(+) T cells to eliminate tumors, and neither of these cells were able to completely eliminate A20-OVA tumors from T and B cell-deficient RAG2(-/-) mice. Mice cured from tumors by Th1 and Th2 cell therapy rejected A20-OVA upon rechallenge, but CD8(+) cytotoxic T lymphocytes were induced only from spleen cells prepared from cured mice by Th1 cell therapy. Moreover, we demonstrated that Th1 and Th2 cells used distinct adhesion mechanisms during tumor eradication: the leukocyte function-associated antigen (LFA)-1-dependent cell-cell adhesion step was essential for Th1 cell therapy, but not for Th2 cell therapy. These findings demonstrated for the first time the distinct role of antigen-specific Th1 and Th2 cells during eradication of established tumors in vivo.
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MESH Headings
- Animals
- Antigens/genetics
- Cell Adhesion/immunology
- Cytokines/immunology
- Cytotoxicity, Immunologic
- DNA-Binding Proteins/genetics
- DNA-Binding Proteins/immunology
- Female
- Immunologic Memory
- Immunotherapy, Adoptive
- Mice
- Mice, Inbred BALB C
- Mice, Knockout
- Mice, Transgenic
- Models, Biological
- Neoplasms, Experimental/immunology
- Neoplasms, Experimental/pathology
- Neoplasms, Experimental/therapy
- Ovalbumin/genetics
- Ovalbumin/immunology
- Receptors, Antigen, T-Cell/genetics
- Th1 Cells/immunology
- Th2 Cells/immunology
- Transfection
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Affiliation(s)
- T Nishimura
- Section of Genetic Engineering, Research Center for Genetic Engineering and Cell Transplantation, Tokai University School of Medicine, Isehara, Japan
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