1
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Movérare-Skrtic S, Voelkl J, Nilsson KH, Nethander M, Luong TTD, Alesutan I, Li L, Wu J, Horkeby K, Lagerquist MK, Koskela A, Tuukkanen J, Tobias JH, Lerner UH, Henning P, Ohlsson C. B4GALNT3 regulates glycosylation of sclerostin and bone mass. EBioMedicine 2023; 91:104546. [PMID: 37023531 PMCID: PMC10102813 DOI: 10.1016/j.ebiom.2023.104546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 03/14/2023] [Accepted: 03/15/2023] [Indexed: 04/08/2023] Open
Abstract
BACKGROUND Global sclerostin inhibition reduces fracture risk efficiently but has been associated with cardiovascular side effects. The strongest genetic signal for circulating sclerostin is in the B4GALNT3 gene region, but the causal gene is unknown. B4GALNT3 expresses the enzyme beta-1,4-N-acetylgalactosaminyltransferase 3 that transfers N-acetylgalactosamine onto N-acetylglucosaminebeta-benzyl on protein epitopes (LDN-glycosylation). METHODS To determine if B4GALNT3 is the causal gene, B4galnt3-/- mice were developed and serum levels of total sclerostin and LDN-glycosylated sclerostin were analysed and mechanistic studies were performed in osteoblast-like cells. Mendelian randomization was used to determine causal associations. FINDINGS B4galnt3-/- mice had higher circulating sclerostin levels, establishing B4GALNT3 as a causal gene for circulating sclerostin levels, and lower bone mass. However, serum levels of LDN-glycosylated sclerostin were lower in B4galnt3-/- mice. B4galnt3 and Sost were co-expressed in osteoblast-lineage cells. Overexpression of B4GALNT3 increased while silencing of B4GALNT3 decreased the levels of LDN-glycosylated sclerostin in osteoblast-like cells. Mendelian randomization demonstrated that higher circulating sclerostin levels, genetically predicted by variants in the B4GALNT3 gene, were causally associated with lower BMD and higher risk of fractures but not with higher risk of myocardial infarction or stroke. Glucocorticoid treatment reduced B4galnt3 expression in bone and increased circulating sclerostin levels and this may contribute to the observed glucocorticoid-induced bone loss. INTERPRETATION B4GALNT3 is a key factor for bone physiology via regulation of LDN-glycosylation of sclerostin. We propose that B4GALNT3-mediated LDN-glycosylation of sclerostin may be a bone-specific osteoporosis target, separating the anti-fracture effect of global sclerostin inhibition, from indicated cardiovascular side effects. FUNDING Found in acknowledgements.
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Affiliation(s)
- Sofia Movérare-Skrtic
- Sahlgrenska Osteoporosis Centre, Centre for Bone and Arthritis Research, Institute of Medicine, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden.
| | - Jakob Voelkl
- Institute for Physiology and Pathophysiology, Johannes Kepler University Linz, Linz, Austria; Department of Nephrology and Medical Intensive Care, Charité - Universitätsmedizin Berlin, Berlin, Germany; DZHK (German Centre for Cardiovascular Research), Partner Site Berlin, Berlin, Germany
| | - Karin H Nilsson
- Sahlgrenska Osteoporosis Centre, Centre for Bone and Arthritis Research, Institute of Medicine, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
| | - Maria Nethander
- Sahlgrenska Osteoporosis Centre, Centre for Bone and Arthritis Research, Institute of Medicine, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden; Bioinformatics Core Facility, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Trang Thi Doan Luong
- Institute for Physiology and Pathophysiology, Johannes Kepler University Linz, Linz, Austria
| | - Ioana Alesutan
- Institute for Physiology and Pathophysiology, Johannes Kepler University Linz, Linz, Austria
| | - Lei Li
- Sahlgrenska Osteoporosis Centre, Centre for Bone and Arthritis Research, Institute of Medicine, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
| | - Jianyao Wu
- Sahlgrenska Osteoporosis Centre, Centre for Bone and Arthritis Research, Institute of Medicine, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
| | - Karin Horkeby
- Sahlgrenska Osteoporosis Centre, Centre for Bone and Arthritis Research, Institute of Medicine, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
| | - Marie K Lagerquist
- Sahlgrenska Osteoporosis Centre, Centre for Bone and Arthritis Research, Institute of Medicine, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
| | - Antti Koskela
- Department of Anatomy and Cell Biology, Faculty of Medicine, Institute of Cancer Research and Translational Medicine, University of Oulu, Oulu, Finland
| | - Juha Tuukkanen
- Department of Anatomy and Cell Biology, Faculty of Medicine, Institute of Cancer Research and Translational Medicine, University of Oulu, Oulu, Finland
| | - Jon H Tobias
- Musculoskeletal Research Unit, Translational Health Sciences, and Medical Research Council Integrative Epidemiology Unit, Bristol Medical School, University of Bristol, Bristol, UK
| | - Ulf H Lerner
- Sahlgrenska Osteoporosis Centre, Centre for Bone and Arthritis Research, Institute of Medicine, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
| | - Petra Henning
- Sahlgrenska Osteoporosis Centre, Centre for Bone and Arthritis Research, Institute of Medicine, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
| | - Claes Ohlsson
- Sahlgrenska Osteoporosis Centre, Centre for Bone and Arthritis Research, Institute of Medicine, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden; Region Västra Götaland, Department of Drug Treatment, Sahlgrenska University Hospital, Gothenburg, Sweden
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2
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Hirano K, Furukawa K. Biosynthesis and Biological Significances of LacdiNAc Group on N- and O-Glycans in Human Cancer Cells. Biomolecules 2022; 12:biom12020195. [PMID: 35204696 PMCID: PMC8961560 DOI: 10.3390/biom12020195] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 01/14/2022] [Accepted: 01/19/2022] [Indexed: 01/27/2023] Open
Abstract
An increasing number of studies have shown that the disaccharide GalNAcβ1→4GlcNAc (LacdiNAc) group bound to N- and O-glycans in glycoproteins is expressed in a variety of mammalian cells. Biosynthesis of the LacdiNAc group was well studied, and two β4-N-acetylgalactosaminyltransferases, β4GalNAcT3 and β4GalNAcT4, have been shown to transfer N-acetylgalactosamine (GalNAc) to N-acetylglucosamine (GlcNAc) of N- and O-glycans in a β-1,4-linkage. The LacdiNAc group is often sialylated, sulfated, and/or fucosylated, and the LacdiNAc group, with or without these modifications, is recognized by receptors and lectins and is thus involved in the regulation of several biological phenomena, such as cell differentiation. The occurrences of the LacdiNAc group and the β4GalNAcTs appear to be tissue specific and are closely associated with the tumor progression or regression, indicating that they will be potent diagnostic markers of particular cancers, such as prostate cancer. It has been demonstrated that the expression of the LacdiNAc group on N-glycans of cell surface glycoproteins including β1-integrin is involved in the modulation of their protein functions, thus affecting cellular invasion and other malignant properties of cancer cells. The biological roles of the LacdiNAc group in cancer cells have not been fully understood. However, the re-expression of the LacdiNAc group on N-glycans, which is lost in breast cancer cells by transfection of the β4GalNAcT4 gene, brings about the partial restoration of normal properties and subsequent suppression of malignant phenotypes of the cells. Therefore, elucidation of the biological roles of the LacdiNAc group in glycoproteins will lead to the suppression of breast cancers.
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Affiliation(s)
- Kiyoko Hirano
- Glycoinformatics Project, The Noguchi Institute, Itabashi, Tokyo 173-0003, Japan
- Correspondence: ; Tel.: +81-3-3961-3255
| | - Kiyoshi Furukawa
- Department of Endocrinology and Diabetes, Medical Center, Saitama Medical University, Kawagoe 350-8550, Japan;
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3
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Kinouchi S, Sato M, Furukawa H, Sato T. Suppression of Malignant Potentials of A549 Human Lung Cancer Cell Line by Downregulation of the β4-Galactosyltransferase 1 Gene Expression. Biol Pharm Bull 2020; 43:747-751. [PMID: 32023576 DOI: 10.1248/bpb.b19-01033] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Our previous study demonstrated that downregulation of transcription factor Specificity protein (Sp) 1 suppresses the malignant potentials of A549 human lung cancer cell line with the reduced β4-galactosylation of highly branched N-glycans on cell surface glycoproteins. The reduced β4-galactosylation was brought about by the decreased expression of the β4-galactosyltransferase 1 (β4GalT1) gene. Herein, we examined whether the reduced β4-galactosylation by decreasing the β4GalT1 gene expression suppresses the malignant potentials of A549 cells. In the β4GalT1-downregulated cells, the β4-galactosylation of highly branched N-glycans was reduced in several glycoproteins such as lysosome-associated membrane protein-1 and E-cadherin. The anchorage-independent growth and migratory ability of the β4GalT1-downregulated cells decreased when compared with the control cells. Furthermore, the phosphorylation of p44/42 mitogen-activated protein kinase (MAPK) decreased in the β4GalT1-downregulated cells. These results indicate that downregulation of the β4GalT1 gene decreases the β4-galactosylation of highly branched N-glycans and the phosphorylation of p44/42 MAPK, and suppresses the malignant potentials of A549 cells.
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Affiliation(s)
- Saeka Kinouchi
- Laboratory of Glycobiology, Department of Bioengineering, Nagaoka University of Technology
| | - Miku Sato
- Laboratory of Glycobiology, Department of Bioengineering, Nagaoka University of Technology
| | - Haruna Furukawa
- Laboratory of Glycobiology, Department of Bioengineering, Nagaoka University of Technology
| | - Takeshi Sato
- Laboratory of Glycobiology, Department of Bioengineering, Nagaoka University of Technology
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4
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Taatjes DJ, Roth J. In focus in HCB. Histochem Cell Biol 2020; 153:1-3. [PMID: 31897604 DOI: 10.1007/s00418-019-01840-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Douglas J Taatjes
- Department of Pathology and Laboratory Medicine, Larner College of Medicine, University of Vermont, Burlington, VT, 05405, USA.
| | - Jürgen Roth
- University of Zurich, 8091, Zurich, Switzerland
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5
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Peng W, Mirzaei P, Zhu R, Zhou S, Mechref Y. Comparative Membrane N-Glycomics of Different Breast Cancer Cell Lines To Understand Breast Cancer Brain Metastasis. J Proteome Res 2020; 19:854-863. [PMID: 31876156 DOI: 10.1021/acs.jproteome.9b00664] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The mechanism of brain metastatic breast cancer has gained attention because of its increased incidence rate and its low survival rate. Aberrant protein glycosylation is thought to be a contributing factor in this metastatic mechanism, in which metastatic cancer cells can pass through the blood-brain barrier (BBB). The cell membrane is the outermost layer of a cell and in direct contact with the environment and with other cells, making membrane glycans especially important in many biological processes that include mediating cell-cell adhesion, cell signaling, and interactions. Thus, membrane glycomics has attracted more interest for a variety of disease studies in recent years. To reveal the role that membrane N-glycans play in breast cancer brain metastasis, in this study, membrane enrichment was achieved by ultracentrifugation. Liquid chromatography-tandem mass spectrometry was employed to analyze enriched membrane N-glycomes from five breast cancer cell lines and one brain cancer cell line. Relative quantitative glycomic data from each cell line were compared to MDA-MB-231BR, which is the brain-seeking cell line. The higher sialylation level observed in MDA-MB-231BR suggested the importance of sialylation as it might assist with cell invasion and the penetration of the BBB. Some highly sialylated N-glycans, such as HexNAc5Hex6DeoxyHex1NeuAc3 and HexNAc6Hex7DeoxyHex1NeuAc3, exhibited higher abundances in 231BR, indicating their possible contributions to breast cancer brain metastasis as well as their potential to be indicators for the breast cancer brain metastasis.
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Affiliation(s)
- Wenjing Peng
- Department of Chemistry and Biochemistry , Texas Tech University , Lubbock 79409-1061 , Texas , United States
| | - Parvin Mirzaei
- Department of Chemistry and Biochemistry , Texas Tech University , Lubbock 79409-1061 , Texas , United States
| | - Rui Zhu
- Department of Chemistry and Biochemistry , Texas Tech University , Lubbock 79409-1061 , Texas , United States
| | - Shiyue Zhou
- Department of Chemistry and Biochemistry , Texas Tech University , Lubbock 79409-1061 , Texas , United States
| | - Yehia Mechref
- Department of Chemistry and Biochemistry , Texas Tech University , Lubbock 79409-1061 , Texas , United States
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6
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LacdiNAcylation of N-glycans in MDA-MB-231 human breast cancer cells results in changes in morphological appearance and adhesive properties of the cells. Histochem Cell Biol 2019; 153:17-26. [PMID: 31606752 DOI: 10.1007/s00418-019-01822-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/30/2019] [Indexed: 12/24/2022]
Abstract
We demonstrated previously that the expression of the disaccharide, GalNAcβ1 → 4GlcNAc (LacdiNAc), on N-glycans of cell surface glycoproteins in MDA-MB-231 human breast cancer cells suppresses their malignant properties such as tumor formation in nude mice. Here, we report changes in the morphological appearance and adhesive properties of two kinds of clonal cells of MDA-MB-231 cells overexpressing β4-N-acetyl-galactosaminyltransferase 4. The clonal cells exhibited a cobble stone-like shape as compared to a spindle-like shape of the mock-transfected cells and the original MDA-MB-231 cells. This was associated with an increased expression of cell surface E-cadherin, a marker of epithelial cells, and a decreased expression of N-cadherin, vimentin, α-smooth muscle actin and ZEB1, markers of mesenchymal cells. In addition, the clonal cells showed a lower migratory activity compared to the mock-transfected cells by wound-healing assay. These results suggest that mesenchymal-epithelial transition may be occurring in these clonal cells. Furthermore, increased adhesion to extracellular matrix proteins such as fibronectin, collagen type I, collagen type IV, and laminin was observed. The clonal cells spread and enlarged, whereas the mock-transfected cells demonstrated poor spreading on laminin-coated plates in the absence of fetal calf serum, indicating that expression of LacdiNAc on cell surface glycoproteins results in changes in cell adhesive and spreading properties particularly to laminin.
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7
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Yoneyama T, Tobisawa Y, Kaneko T, Kaya T, Hatakeyama S, Mori K, Sutoh Yoneyama M, Okubo T, Mitsuzuka K, Duivenvoorden W, Pinthus JH, Hashimoto Y, Ito A, Koie T, Suda Y, Gardiner RA, Ohyama C. Clinical significance of the LacdiNAc-glycosylated prostate-specific antigen assay for prostate cancer detection. Cancer Sci 2019; 110:2573-2589. [PMID: 31145522 PMCID: PMC6676104 DOI: 10.1111/cas.14082] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Revised: 05/27/2019] [Accepted: 05/29/2019] [Indexed: 01/02/2023] Open
Abstract
To reduce unnecessary prostate biopsies (Pbx), better discrimination is needed. To identify clinically significant prostate cancer (CSPC) we determined the performance of LacdiNAc‐glycosylated prostate‐specific antigen (LDN‐PSA) and LDN‐PSA normalized by prostate volume (LDN‐PSAD). We retrospectively measured LDN‐PSA, total PSA (tPSA), and free PSA/tPSA (F/T PSA) values in 718 men who underwent a Pbx in 3 academic urology clinics in Japan and Canada (Pbx cohort) and in 174 PC patients who subsequently underwent radical prostatectomy in Australia (preop‐PSA cohort). The assays were evaluated using the area under the receiver operating characteristics curve (AUC) and decision curve analyses to discriminate CSPC. In the Pbx cohort, LDN‐PSAD (AUC 0.860) provided significantly better clinical performance for discriminating CSPC compared with LDN‐PSA (AUC 0.827, P = 0.0024), PSAD (AUC 0.809, P < 0.0001), tPSA (AUC 0.712, P < 0.0001), and F/T PSA (AUC 0.661, P < 0.0001). The decision curve analysis showed that using a risk threshold of 20% and adding LDN‐PSA and LDN‐PSAD to the base model (age, digital rectal examination status, tPSA, and F/T PSA) permitted avoidance of even more biopsies without missing CSPC (9.89% and 18.11%, respectively vs 2.23% [base model]). In the preop‐PSA cohort, LDN‐PSA values positively correlated with tumor volume and tPSA and were significantly higher in pT3, pathological Gleason score ≥ 7. Limitations include limited sample size, retrospective nature, and no family history information prior to biopsy. LacdiNAc‐glycosylated PSA is significantly better than the conventional PSA test in identifying patients with CSPC. This study was approved by the ethics committee of each institution (“The Study about Carbohydrate Structure Change in Urological Disease”; approval no. 2014‐195).
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Affiliation(s)
- Tohru Yoneyama
- Department of Advanced Transplant and Regenerative Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Japan.,Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Yuki Tobisawa
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | | | - Takatoshi Kaya
- Corporate R&D Headquarters, Konica Minolta, Tokyo, Japan
| | - Shingo Hatakeyama
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Kazuyuki Mori
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Mihoko Sutoh Yoneyama
- Department of Cancer Immunology and Cell Biology, Oyokyo Kidney Research Institute, Hirosaki, Japan
| | - Teppei Okubo
- Department of Urology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Koji Mitsuzuka
- Department of Urology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | | | | | - Yasuhiro Hashimoto
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Akihiro Ito
- Department of Urology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Takuya Koie
- Department of Urology, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Yoshihiko Suda
- Corporate R&D Headquarters, Konica Minolta, Tokyo, Japan
| | - Robert A Gardiner
- Department of Urology, Royal Brisbane and Women's Hospital, Brisbane, Australia.,Faculty of Medicine, The University of Queensland, Herston, Queensland, Australia
| | - Chikara Ohyama
- Department of Advanced Transplant and Regenerative Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Japan.,Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
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8
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Szczubiał M, Wawrzykowski J, Dąbrowski R, Bochniarz M, Brodzki P, Kankofer M. The effect of pyometra on glycosylation of proteins in the uterine tissues from female dogs. Theriogenology 2019; 131:41-46. [PMID: 30939355 DOI: 10.1016/j.theriogenology.2019.03.020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Revised: 03/20/2019] [Accepted: 03/24/2019] [Indexed: 12/26/2022]
Abstract
The main aim of this study was to investigate the effect of pyometra on glycosylation of proteins in the uterine tissues from female dogs, using western blotting with selected lectins (Sambucus nigra agglutinin - SNA and Maackia amurensis agglutinin - MAL II). In addition protein pattern of examined tissues was also evaluated. The study was performed on 10 female dogs undergoing ovariohysterectomy because of pyometra and 10 clinically healthy female dogs, undergoing elective spaying (ovariohysterectomy). Uterine tissue samples of 1 cm2 were taken from the middle region of each uterine horn in both group of animals immediately after ovariohysterectomy. Tissue samples were homogenized and analysed by sodium dodecyl sulphate-polyacrylamide gel electrophoresis (SDS-PAGE) and western blotting with SNA and MAL II. SDS-PAGE analysis showed differences between pyometra samples and controls in the amount of obtained protein fractions and the protein content in the individual fractions. Five protein (with a molecular weight of 193.78 kDa, 103.18 kDa, 77.67 kDa, 70.39 kDa, and 53.00 kDa) were found only in the pyometra samples. The remaining fractions differed in intensity of staining, which indicated differ abundance of a given protein. The results of western blotting with SNA and MAL II demonstrated that the pattern obtained from densitometric analysis differs between adequate healthy and pyometra samples with regard to the amount of protein fraction obtained as well as the intensity of staining of particular fraction. The pyometra tissues contained seven SNA-binding proteins (with a molecular weight 189.94 kDa, 165.51 kDa, 100.94 kDa, 59.42 KDa, 41.32 kDa, 35.16 kDa, and 32.6 kDa) that were not in the healthy tissues. Of the nine remaining fractions, six showed significantly higher (P < 0.05) intensity of staining in the healthy uterine tissues. In turn, the MAL II-binding protein with a molecular weight 75.85 kDa, 51.12 kDa, and 49.98 kDa were found only in the pyometra samples. Of the 28 remaining fractions, ten demonstrated significantly higher (P < 0.05), and five fractions had significantly lower (P < 0.05) intensity of staining in the pyometra tissues. The results obtained indicate that proteins in uterine tissues from female dogs with pyometra are differently glycosylated compared to normal uterine tissues. These findings provide the basis for further studies of the possible role of glycosylation in the pathogenesis of canine pyometra.
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Affiliation(s)
- Marek Szczubiał
- Department and Clinic of Animal Reproduction, Faculty of Veterinary Medicine, University of Life Sciences, Głeboka 30, 20-612, Lublin, Poland.
| | - Jacek Wawrzykowski
- Department of Animal Biochemistry, Faculty of Veterinary Medicine, University of Life Sciences, Akademicka 12, 20-033, Lublin, Poland
| | - Roman Dąbrowski
- Department and Clinic of Animal Reproduction, Faculty of Veterinary Medicine, University of Life Sciences, Głeboka 30, 20-612, Lublin, Poland
| | - Mariola Bochniarz
- Department and Clinic of Animal Reproduction, Faculty of Veterinary Medicine, University of Life Sciences, Głeboka 30, 20-612, Lublin, Poland
| | - Piotr Brodzki
- Department and Clinic of Animal Reproduction, Faculty of Veterinary Medicine, University of Life Sciences, Głeboka 30, 20-612, Lublin, Poland
| | - Marta Kankofer
- Department of Animal Biochemistry, Faculty of Veterinary Medicine, University of Life Sciences, Akademicka 12, 20-033, Lublin, Poland
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9
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Yamakawa N, Vanbeselaere J, Chang LY, Yu SY, Ducrocq L, Harduin-Lepers A, Kurata J, Aoki-Kinoshita KF, Sato C, Khoo KH, Kitajima K, Guerardel Y. Systems glycomics of adult zebrafish identifies organ-specific sialylation and glycosylation patterns. Nat Commun 2018; 9:4647. [PMID: 30405127 PMCID: PMC6220181 DOI: 10.1038/s41467-018-06950-3] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2017] [Accepted: 09/26/2018] [Indexed: 12/31/2022] Open
Abstract
The emergence of zebrafish Danio rerio as a versatile model organism provides the unique opportunity to monitor the functions of glycosylation throughout vertebrate embryogenesis, providing insights into human diseases caused by glycosylation defects. Using a combination of chemical modifications, enzymatic digestion and mass spectrometry analyses, we establish here the precise glycomic profiles of eight individual zebrafish organs and demonstrate that the protein glycosylation and glycosphingolipid expression patterns exhibits exquisite specificity. Concomitant expression screening of a wide array of enzymes involved in the synthesis and transfer of sialic acids shows that the presence of organ-specific sialylation motifs correlates with the localized activity of the corresponding glycan biosynthesis pathways. These findings provide a basis for the rational design of zebrafish lines expressing desired glycosylation profiles.
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Affiliation(s)
- Nao Yamakawa
- Université de Lille, CNRS, UMR 8576 - UGSF-Unité de Glycobiologie Structurale et Fonctionnelle, F- 59000, Lille, France.,Bioscience and Biotechnology Center, Nagoya University, Nagoya, 464-8601, Japan
| | - Jorick Vanbeselaere
- Université de Lille, CNRS, UMR 8576 - UGSF-Unité de Glycobiologie Structurale et Fonctionnelle, F- 59000, Lille, France
| | - Lan-Yi Chang
- Université de Lille, CNRS, UMR 8576 - UGSF-Unité de Glycobiologie Structurale et Fonctionnelle, F- 59000, Lille, France.,Institute of Biological Chemistry, Academia Sinica, Taipei, 11529, Taiwan
| | - Shin-Yi Yu
- Université de Lille, CNRS, UMR 8576 - UGSF-Unité de Glycobiologie Structurale et Fonctionnelle, F- 59000, Lille, France
| | - Lucie Ducrocq
- Université de Lille, CNRS, UMR 8576 - UGSF-Unité de Glycobiologie Structurale et Fonctionnelle, F- 59000, Lille, France
| | - Anne Harduin-Lepers
- Université de Lille, CNRS, UMR 8576 - UGSF-Unité de Glycobiologie Structurale et Fonctionnelle, F- 59000, Lille, France
| | - Junichi Kurata
- Faculty of Science and Engineering, Soka University, Hachioji, Tokyo, 192-8577, Japan
| | | | - Chihiro Sato
- Bioscience and Biotechnology Center, Nagoya University, Nagoya, 464-8601, Japan
| | - Kay-Hooi Khoo
- Institute of Biological Chemistry, Academia Sinica, Taipei, 11529, Taiwan
| | - Ken Kitajima
- Bioscience and Biotechnology Center, Nagoya University, Nagoya, 464-8601, Japan
| | - Yann Guerardel
- Université de Lille, CNRS, UMR 8576 - UGSF-Unité de Glycobiologie Structurale et Fonctionnelle, F- 59000, Lille, France.
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10
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Hashim OH, Jayapalan JJ, Lee CS. Lectins: an effective tool for screening of potential cancer biomarkers. PeerJ 2017; 5:e3784. [PMID: 28894650 PMCID: PMC5592079 DOI: 10.7717/peerj.3784] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Accepted: 08/18/2017] [Indexed: 12/13/2022] Open
Abstract
In recent years, the use of lectins for screening of potential biomarkers has gained increased importance in cancer research, given the development in glycobiology that highlights altered structural changes of glycans in cancer associated processes. Lectins, having the properties of recognizing specific carbohydrate moieties of glycoconjugates, have become an effective tool for detection of new cancer biomarkers in complex bodily fluids and tissues. The specificity of lectins provides an added advantage of selecting peptides that are differently glycosylated and aberrantly expressed in cancer patients, many of which are not possibly detected using conventional methods because of their low abundance in bodily fluids. When coupled with mass spectrometry, research utilizing lectins, which are mainly from plants and fungi, has led to identification of numerous potential cancer biomarkers that may be used in the future. This article reviews lectin-based methods that are commonly adopted in cancer biomarker discovery research.
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Affiliation(s)
- Onn Haji Hashim
- Department of Molecular Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia.,University of Malaya Centre for Proteomics Research, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Jaime Jacqueline Jayapalan
- University of Malaya Centre for Proteomics Research, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Cheng-Siang Lee
- Department of Molecular Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
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11
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Muramoto K, Tange R, Ishii T, Miyauchi K, Sato T. Downregulation of Transcription Factor Sp1 Suppresses Malignant Properties of A549 Human Lung Cancer Cell Line with Decreased β4-Galactosylation of Highly Branched N-Glycans. Biol Pharm Bull 2017; 40:1282-1288. [PMID: 28529241 DOI: 10.1248/bpb.b17-00212] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2023]
Abstract
Dramatic changes in the glycan structures of cell surface proteins have been observed upon malignant transformation of cells as induced by the altered expression levels of glycosyltransferases. Such changes are closely associated with the malignant properties of cancer cells. Transcription factor Sp1 regulates the gene expression of various molecules including glycosyltransferases. Herein, we investigated whether or not Sp1-downregulation affects to N-glycosylation of glycoproteins and malignant properties of A549 human lung cancer cell line. We established a stable clone whose Sp1-expression level was reduced to 50% of a control clone by RNA interference. Lectin blotting revealed that the β4-galactosylation of highly branched N-glycans decreases mainly in cell adhesion molecule, E-cadherin. The analysis of underlying mechanism for decreased β4-galactosylation of N-glycans showed that the gene expression level of β4-galactosyltransferase (β4GalT) 1 decreases dramatically by downregulation of Sp1 without changes in those of β4GalT2 and N-acetylglucosaminyltransferase V. Mutations in the Sp1-binding sites of the β4GalT1 gene promoter showed that the promoter activity decreases significantly, indicating that the gene expression is regulated by Sp1. These results indicate that the β4-galactosylation of highly branched N-glycans decreases by downregulation of Sp1 through the reduced expression of the β4GalT1 gene. Furthermore, the Sp1-downregulated cells showed the suppression of the anchorage-independent growth in soft agar and migratory activity when compared to the control cells. The present study demonstrates that downregulation of Sp1 suppresses the malignant properties of A549 cells through the decreased β4-galactosylation of highly branched N-glycans.
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Affiliation(s)
- Kodai Muramoto
- Laboratory of Glycobiology, Department of Bioengineering, Nagaoka University of Technology
| | - Riho Tange
- Laboratory of Glycobiology, Department of Bioengineering, Nagaoka University of Technology
| | - Takayuki Ishii
- Laboratory of Glycobiology, Department of Bioengineering, Nagaoka University of Technology
| | - Kana Miyauchi
- Laboratory of Glycobiology, Department of Bioengineering, Nagaoka University of Technology
| | - Takeshi Sato
- Laboratory of Glycobiology, Department of Bioengineering, Nagaoka University of Technology
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Hagiwara K, Tobisawa Y, Kaya T, Kaneko T, Hatakeyama S, Mori K, Hashimoto Y, Koie T, Suda Y, Ohyama C, Yoneyama T. Wisteria floribunda Agglutinin and Its Reactive-Glycan-Carrying Prostate-Specific Antigen as a Novel Diagnostic and Prognostic Marker of Prostate Cancer. Int J Mol Sci 2017; 18:ijms18020261. [PMID: 28134773 PMCID: PMC5343797 DOI: 10.3390/ijms18020261] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2016] [Revised: 01/17/2017] [Accepted: 01/19/2017] [Indexed: 01/09/2023] Open
Abstract
Wisteria floribunda agglutinin (WFA) preferably binds to LacdiNAc glycans, and its reactivity is associated with tumor progression. The aim of this study to examine whether the serum LacdiNAc carrying prostate-specific antigen–glycosylation isomer (PSA-Gi) and WFA-reactivity of tumor tissue can be applied as a diagnostic and prognostic marker of prostate cancer (PCa). Between 2007 and 2016, serum PSA-Gi levels before prostate biopsy (Pbx) were measured in 184 biopsy-proven benign prostatic hyperplasia patients and 244 PCa patients using an automated lectin-antibody immunoassay. WFA-reactivity on tumor was analyzed in 260 radical prostatectomy (RP) patients. Diagnostic and prognostic performance of serum PSA-Gi was evaluated using area under the receiver-operator characteristic curve (AUC). Prognostic performance of WFA-reactivity on tumor was evaluated via Cox proportional hazards regression analysis and nomogram. The AUC of serum PSA-Gi detecting PCa and predicting Pbx Grade Group (GG) 3 and GG ≥ 3 after RP was much higher than those of conventional PSA. Multivariate analysis showed that WFA-reactivity on prostate tumor was an independent risk factor of PSA recurrence. The nomogram was a strong model for predicting PSA-free survival provability with a c-index ≥0.7. Serum PSA-Gi levels and WFA-reactivity on prostate tumor may be a novel diagnostic and pre- and post-operative prognostic biomarkers of PCa, respectively.
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Affiliation(s)
- Kazuhisa Hagiwara
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan.
| | - Yuki Tobisawa
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan.
| | - Takatoshi Kaya
- Corporate R&D Headquarters, Konica Minolta, Inc., Hino-shi, Tokyo 191-8511, Japan.
| | - Tomonori Kaneko
- Corporate R&D Headquarters, Konica Minolta, Inc., Hino-shi, Tokyo 191-8511, Japan.
| | - Shingo Hatakeyama
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan.
| | - Kazuyuki Mori
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan.
| | - Yasuhiro Hashimoto
- Department of Advanced Transplant and Regenerative Medicine, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan.
| | - Takuya Koie
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan.
| | - Yoshihiko Suda
- Corporate R&D Headquarters, Konica Minolta, Inc., Hino-shi, Tokyo 191-8511, Japan.
| | - Chikara Ohyama
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan.
- Department of Advanced Transplant and Regenerative Medicine, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan.
| | - Tohru Yoneyama
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan.
- Department of Advanced Transplant and Regenerative Medicine, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan.
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Haji-Ghassemi O, Gilbert M, Spence J, Schur MJ, Parker MJ, Jenkins ML, Burke JE, van Faassen H, Young NM, Evans SV. Molecular Basis for Recognition of the Cancer Glycobiomarker, LacdiNAc (GalNAc[β1→4]GlcNAc), by Wisteria floribunda Agglutinin. J Biol Chem 2016; 291:24085-24095. [PMID: 27601469 DOI: 10.1074/jbc.m116.750463] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2016] [Indexed: 01/10/2023] Open
Abstract
Aberrant glycosylation and the overexpression of specific carbohydrate epitopes is a hallmark of many cancers, and tumor-associated oligosaccharides are actively investigated as targets for immunotherapy and diagnostics. Wisteria floribunda agglutinin (WFA) is a legume lectin that recognizes terminal N-acetylgalactosaminides with high affinity. WFA preferentially binds the disaccharide LacdiNAc (β-d-GalNAc-[1→4]-d-GlcNAc), which is associated with tumor malignancy in leukemia, prostate, pancreatic, ovarian, and liver cancers and has shown promise in cancer glycobiomarker detection. The mechanism of specificity for WFA recognition of LacdiNAc is not fully understood. To address this problem, we have determined affinities and structure of WFA in complex with GalNAc and LacdiNAc. Affinities toward Gal, GalNAc, and LacdiNAc were measured via surface plasmon resonance, yielding KD values of 4.67 × 10-4 m, 9.24 × 10-5 m, and 5.45 × 10-6 m, respectively. Structures of WFA in complex with LacdiNAc and GalNAc have been determined to 1.80-2.32 Å resolution. These high resolution structures revealed a hydrophobic groove complementary to the GalNAc and, to a minor extent, to the back-face of the GlcNAc sugar ring. Remarkably, the contribution of this small hydrophobic surface significantly increases the observed affinity for LacdiNAc over GalNAc. Tandem MS sequencing confirmed the presence of two isolectin forms in commercially available WFA differing only in the identities of two amino acids. Finally, the WFA carbohydrate binding site is similar to a homologous lectin isolated from Vatairea macrocarpa in complex with GalNAc, which, unlike WFA, binds not only αGalNAc but also terminal Ser/Thr O-linked αGalNAc (Tn antigen).
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Affiliation(s)
- Omid Haji-Ghassemi
- From the Department of Biochemistry and Microbiology, University of Victoria, Victoria, British Columbia V8P 3P6, Canada and
| | - Michel Gilbert
- Human Health Therapeutics, National Research Council of Canada, Ottawa, Ontario K1A 0R6, Canada
| | - Jenifer Spence
- From the Department of Biochemistry and Microbiology, University of Victoria, Victoria, British Columbia V8P 3P6, Canada and
| | - Melissa J Schur
- Human Health Therapeutics, National Research Council of Canada, Ottawa, Ontario K1A 0R6, Canada
| | - Matthew J Parker
- From the Department of Biochemistry and Microbiology, University of Victoria, Victoria, British Columbia V8P 3P6, Canada and
| | - Meredith L Jenkins
- From the Department of Biochemistry and Microbiology, University of Victoria, Victoria, British Columbia V8P 3P6, Canada and
| | - John E Burke
- From the Department of Biochemistry and Microbiology, University of Victoria, Victoria, British Columbia V8P 3P6, Canada and
| | - Henk van Faassen
- Human Health Therapeutics, National Research Council of Canada, Ottawa, Ontario K1A 0R6, Canada
| | - N Martin Young
- Human Health Therapeutics, National Research Council of Canada, Ottawa, Ontario K1A 0R6, Canada
| | - Stephen V Evans
- From the Department of Biochemistry and Microbiology, University of Victoria, Victoria, British Columbia V8P 3P6, Canada and
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Sugahara D, Tomioka A, Sato T, Narimatsu H, Kaji H. Large-scale identification of secretome glycoproteins recognized by Wisteria floribunda
agglutinin: A glycoproteomic approach to biomarker discovery. Proteomics 2015; 15:2921-33. [DOI: 10.1002/pmic.201400443] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2014] [Revised: 01/27/2015] [Accepted: 04/24/2015] [Indexed: 12/27/2022]
Affiliation(s)
- Daisuke Sugahara
- Research Center for Medical Glycoscience (RCMG); National Institute of Advanced Industrial Science and Technology (AIST); Tsukuba Japan
| | - Azusa Tomioka
- Research Center for Medical Glycoscience (RCMG); National Institute of Advanced Industrial Science and Technology (AIST); Tsukuba Japan
| | - Takashi Sato
- Research Center for Medical Glycoscience (RCMG); National Institute of Advanced Industrial Science and Technology (AIST); Tsukuba Japan
| | - Hisashi Narimatsu
- Research Center for Medical Glycoscience (RCMG); National Institute of Advanced Industrial Science and Technology (AIST); Tsukuba Japan
| | - Hiroyuki Kaji
- Research Center for Medical Glycoscience (RCMG); National Institute of Advanced Industrial Science and Technology (AIST); Tsukuba Japan
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15
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Enhanced expression of the β4-N-acetylgalactosaminyltransferase 4 gene impairs tumor growth of human breast cancer cells. Biochem Biophys Res Commun 2015; 461:80-5. [PMID: 25858323 DOI: 10.1016/j.bbrc.2015.03.173] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2015] [Accepted: 03/29/2015] [Indexed: 11/22/2022]
Abstract
Two β4-N-acetylgalactosaminyltransferases (β4GalNAcTs), β4GalNAcT3 and β4GalNAcT4, have been shown to be involved in the synthesis of the GalNAcβ1 → 4GlcNAc (LacdiNAc) group expressed on the outer branches of N- and/or O-glycans, and only β4GalNAcT4 is expressed in human mammary gland. We found that the expression level of the LacdiNAc group decreases as human breast cancers progress. To investigate biological significances of this disaccharide in human breast cancers, we transfected the FLAG-tagged β4GalNAcT4 cDNA into MDA-MB-231 cells, and obtained several clones showing enhanced expression of the gene. Clones 1 and 2 showed 15 and 9 times more transcript than mock-transfected cells. The FLAG-β4GalNAcT4 protein and its product, the LacdiNAc group, were detected in clone 1 and 2 cells. No change was observed in their growth rates while significant decreases in colony forming and invasive abilities were observed for clone 1 and 2 cells. When clone 1 cells were transplanted subcutaneously into nude mice, no tumors were formed while tumors were formed with mock-transfected cells. These results indicate that the expression of the LacdiNAc group is quite important for the suppression of malignancies of the MDA-MB-231 cells.
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16
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Guo H, Abbott KL. Functional impact of tumor-specific N-linked glycan changes in breast and ovarian cancers. Adv Cancer Res 2015; 126:281-303. [PMID: 25727151 DOI: 10.1016/bs.acr.2014.11.006] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Changes in glycosylation have been implicated in various human diseases, including cancer. Research over the past few decades has produced significant findings that illustrate the importance of cancer-specific alterations in glycosylation in the regulation of tumor formation and metastasis. The identification of glycan-based biomarkers and strategies targeting specific glycan epitopes on the tumor cell surface has become one of the widely pursued research areas. In this chapter, we will summarize and provide perspective on available knowledge about the functional roles that glycan structures play in the development and progression of the gynecological cancers, breast and ovarian, with a specific focus on N-linked glycans. A better understanding of the functional roles for glycans in cancer will drive future innovations for diagnostics and therapeutics.
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Hirakawa T, Nasu K, Kai K, Aoyagi Y, Ishii T, Uemura T, Yano M, Narahara H. Wisteria floribunda agglutinin-binding glycan expression is decreased in endometriomata. Reprod Biol Endocrinol 2014; 12:100. [PMID: 25344456 PMCID: PMC4219044 DOI: 10.1186/1477-7827-12-100] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2014] [Accepted: 10/13/2014] [Indexed: 01/24/2023] Open
Abstract
BACKGROUND Glycosylation is one of the most common post-translational modifications of eukaryotic proteins and is known to undergo dynamic changes in a wide range of biological processes. To date, however, the glycan expression profiles in endometriosis are largely unknown. The objective of the study was to identify the panel of glycans that were aberrantly expressed in endometriosis, a hormone-dependent disease. METHODS The glycan expression profiles in primary cultured human endometriotic cyst stromal cells (ECSCs) and normal endometrial stromal cells (NESCs) were determined by lectin microarray analysis. Distribution of Wisteria floribunda agglutinin (WFA)-binding glycans in ovarian endometriotic cysts and eutopic proliferative phase endometrium were assessed by lectin histochemistry. The expressions of N-acetylgalactosaminyl transferases that synthesize WFA-binding glycans were evaluated in ECSCs and NESCs. RESULTS We found that the levels of WFA-binding glycans were decreased in ECSCs. Lectin histochemistry revealed that WFA-binding glycans were decreased only in the stromal components of the ovarian endometriotic cysts, but not in the epithelial components, compared to the eutopic proliferative phase endometrium. The expressions of N-acetylgalactosaminyl transferases that synthesize WFA-binding glycans were downregulated in ECSCs. CONCLUSIONS Utilizing lectin microarray analysis and lectin histochemistry, we found that WFA-binding glycans were decreased in endometriosis. The synthetic enzymes of WFA-binding glycans were significantly downregulated in ECSCs. It is suggested that reduced expression of N-glycans with WFA-binding properties on ECSCs is a novel characteristics of endometriosis.
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Affiliation(s)
- Tomoko Hirakawa
- Department of Obstetrics and Gynecology, Faculty of Medicine, Oita University, Idaigaoka 1-1, Hasama-machi, Yufu-shi Oita, 879-5593 Japan
| | - Kaei Nasu
- Department of Obstetrics and Gynecology, Faculty of Medicine, Oita University, Idaigaoka 1-1, Hasama-machi, Yufu-shi Oita, 879-5593 Japan
- Division of Obstetrics and Gynecology, Support System for Community Medicine, Faculty of Medicine, Oita University, Idaigaoka 1-1, Hasama-machi, Yufu-shi Oita, 879-5593 Japan
| | - Kentaro Kai
- Department of Obstetrics and Gynecology, Faculty of Medicine, Oita University, Idaigaoka 1-1, Hasama-machi, Yufu-shi Oita, 879-5593 Japan
| | - Yoko Aoyagi
- Department of Obstetrics and Gynecology, Faculty of Medicine, Oita University, Idaigaoka 1-1, Hasama-machi, Yufu-shi Oita, 879-5593 Japan
| | - Terukazu Ishii
- Department of Obstetrics and Gynecology, Faculty of Medicine, Oita University, Idaigaoka 1-1, Hasama-machi, Yufu-shi Oita, 879-5593 Japan
| | - Tetsuya Uemura
- Department of Obstetrics and Gynecology, Faculty of Medicine, Oita University, Idaigaoka 1-1, Hasama-machi, Yufu-shi Oita, 879-5593 Japan
| | - Mitsutake Yano
- Department of Obstetrics and Gynecology, Faculty of Medicine, Oita University, Idaigaoka 1-1, Hasama-machi, Yufu-shi Oita, 879-5593 Japan
| | - Hisashi Narahara
- Department of Obstetrics and Gynecology, Faculty of Medicine, Oita University, Idaigaoka 1-1, Hasama-machi, Yufu-shi Oita, 879-5593 Japan
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18
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Expression of LacdiNAc groups on N-glycans among human tumors is complex. BIOMED RESEARCH INTERNATIONAL 2014; 2014:981627. [PMID: 25003135 PMCID: PMC4066867 DOI: 10.1155/2014/981627] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/14/2014] [Accepted: 04/26/2014] [Indexed: 12/19/2022]
Abstract
Aberrant glycosylation of proteins and lipids is one of the characteristic features of malignantly transformed cells. The GalNAcβ1 → 4GlcNAc (LacdiNAc or LDN) group at the nonreducing termini of both N- and O-glycans is not generally found in mammalian cells. We previously showed that the expression level of the LacdiNAc group in N-glycans decreases dramatically during the progression of human breast cancer. In contrast, the enhanced expression of the LacdiNAc group has been shown to be associated with the progression of human prostate, ovarian, and pancreatic cancers. Therefore, the expression of the disaccharide group appears to be dependent on types of tumors. The mechanism of formation of the LacdiNAc group in human tumors and cancer cells has been studied, and two β4-N-acetylgalacto-saminyltransferases (β4GalNAcTs), β4GalNAcT3 and β4GalNAcT4, have been shown to be involved in the biosynthesis of this disaccharide group in a tissue-dependent manner. Transfection of the β4GalNAcT3 gene brought about significant changes in the malignant phenotypes of human neuroblastoma, indicating that this disaccharide group is important for suppressing the tumor growth.
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Abstract
Lectin-probed western blot analysis, the so-called lectin blot analysis, is a useful method to yield basic information on the glycan structures of glycoproteins, based on the carbohydrate-binding specificities of lectins. By lectin blot analysis, researchers can directly analyze the glycan structures without releasing the glycans from glycoproteins. Here, the author describes protocols for standard analysis, and applies analysis in combination with glycosidase digestion of blot.
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20
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Soga K, Teruya F, Tateno H, Hirabayashi J, Yamamoto K. Terminal N-acetylgalactosamine-specific leguminous lectin from Wisteria japonica as a probe for human lung squamous cell carcinoma. PLoS One 2013; 8:e83886. [PMID: 24349556 PMCID: PMC3862811 DOI: 10.1371/journal.pone.0083886] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2013] [Accepted: 11/15/2013] [Indexed: 12/31/2022] Open
Abstract
Millettia japonica was recently reclassified into the genus Wisteria japonica based on chloroplast and nuclear DNA sequences. Because the seed of Wisteria floribunda expresses leguminous lectins with unique N-acetylgalactosamine-binding specificity, we purified lectin from Wisteria japonica seeds using ion exchange and gel filtration chromatography. Glycan microarray analysis demonstrated that unlike Wisteria floribunda and Wisteria brachybotrys lectins, which bind to both terminal N-acetylgalactosamine and galactose residues, Wisteria japonica lectin (WJA) specifically bound to both α- and β-linked terminal N-acetylgalactosamine, but not galactose residues on oligosaccharides and glycoproteins. Further, frontal affinity chromatography using more than 100 2-aminopyridine-labeled and p-nitrophenyl-derivatized oligosaccharides demonstrated that the ligands with the highest affinity for Wisteria japonica lectin were GalNAcβ1-3GlcNAc and GalNAcβ1-4GlcNAc, with Ka values of 9.5 × 104 and 1.4 × 105 M-1, respectively. In addition, when binding was assessed in a variety of cell lines, Wisteria japonica lectin bound specifically to EBC-1 and HEK293 cells while other Wisteria lectins bound equally to all of the cell lines tested. Wisteria japonica lectin binding to EBC-1 and HEK293 cells was dramatically decreased in the presence of N-acetylgalactosamine, but not galactose, mannose, or N-acetylglucosamine, and was completely abrogated by β-hexosaminidase-digestion of these cells. These results clearly demonstrate that Wisteria japonica lectin binds to terminal N-acetylgalactosamine but not galactose. In addition, histochemical analysis of human squamous cell carcinoma tissue sections demonstrated that Wisteria japonica lectin specifically bound to differentiated cancer tissues but not normal tissue. This novel binding characteristic of Wisteria japonica lectin has the potential to become a powerful tool for clinical applications.
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Affiliation(s)
- Keisuke Soga
- Department of Integrated Biosciences, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa, Chiba, Japan
| | - Futaba Teruya
- Department of Integrated Biosciences, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa, Chiba, Japan
| | - Hiroaki Tateno
- Research Center for Medical Glycoscience, Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki, Japan
| | - Jun Hirabayashi
- Research Center for Medical Glycoscience, Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki, Japan
| | - Kazuo Yamamoto
- Department of Integrated Biosciences, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa, Chiba, Japan
- * E-mail:
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21
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D’Amelio N, Coslovi A, Rossi M, Uggeri F, Paoletti S. Understanding the structural specificity of Tn antigen for its receptor: an NMR solution study. Carbohydr Res 2012; 351:114-20. [DOI: 10.1016/j.carres.2012.01.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2011] [Revised: 01/12/2012] [Accepted: 01/18/2012] [Indexed: 11/28/2022]
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22
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Shin I, Zamfir AD, Ye B. Protein carbonhydrate Analysis: gel-based staining, liquid chromatography, mass spectrometry, and microarray screening. Methods Mol Biol 2008; 441:19-39. [PMID: 18370309 DOI: 10.1007/978-1-60327-047-2_2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Carbohydrate modification of proteins and lipids serves to functionally "fine-tune" these molecules, which are involved in a wide variety of physiological and pathogenic processes through specific biological interactions. Therefore, errors in glycosylation have severe implications and have been associated with many common diseases such as cancer and diabetes. Carbohydrates have historically been desirable targets for drug invention. Recent advances in detection and analysis of carbohydrates have facilitated understanding of the roles of glycoproteins and carbohydrates in many cellular and signaling processes, paving the way for the exploitation of carbohydrates in disease diagnosis and drug discovery. Here, we introduce the most recently developed analytical methods, which have been routinely used in many research laboratories. Following the protein separation by one-dimensional (1D) and two-dimensional (2D) polyacrylamide gel electrophoresis (PAGE), gel-based staining methods provide the initial step to identify candidate glycoproteins so that further characterization can proceed. Combined liquid chromatography and mass spectrometry provide an invaluable technology for quantitative analysis of glycoproteins including glycopeptides and glycans and to identify the glycosylation site. The advanced technology of the carbohydrate-based microarray system incorporates high-throughput analysis to extend the scope of biomedical research on carbohydrate-mediated molecular interactions.
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Affiliation(s)
- Injae Shin
- Department of Chemistry, Yonsei University, Seoul 120-749, Korea
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