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Comparative studies on the substrate specificity and defucosylation activity of three α-l-fucosidases using synthetic fucosylated glycopeptides and glycoproteins as substrates. Bioorg Med Chem 2021; 42:116243. [PMID: 34126284 DOI: 10.1016/j.bmc.2021.116243] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 05/24/2021] [Accepted: 05/25/2021] [Indexed: 11/24/2022]
Abstract
Core fucosylation is the attachment of an α-1,6-fucose moiety to the innermost N-acetyl glucosamine (GlcNAc) in N-glycans in mammalian systems. It plays a pivotal role in modulating the structural and biological functions of glycoproteins including therapeutic antibodies. Yet, few α-l-fucosidases appear to be capable of removing core fucose from intact glycoproteins. This paper describes a comparative study of the substrate specificity and relative activity of the human α-l-fucosidase (FucA1) and two bacterial α-l-fucosidases, the AlfC from Lactobacillus casei and the BfFuc from Bacteroides fragilis. This study was enabled by the synthesis of an array of structurally well-defined core-fucosylated substrates, including core-fucosylated N-glycopeptides and a few antibody glycoforms. It was found that AlfC and BfFuc could not remove core fucose from intact full-length N-glycopeptides or N-glycoproteins but could hydrolyze only the truncated Fucα1,6GlcNAc-peptide substrates. In contrast, the human α-l-fucosidase (FucA1) showed low activity on truncated Fucα1,6GlcNAc substrates but was able to remove core fucose from intact and full-length core-fucosylated N-glycopeptides and N-glycoproteins. In addition, it was found that FucA1 was the only α-l-fucosidase that showed low but apparent activity to remove core fucose from intact IgG antibodies. The ability of FucA1 to defucosylate intact monoclonal antibodies reveals an opportunity to evolve the human α-l-fucosidase for direct enzymatic defucosylation of therapeutic antibodies to improve their antibody-dependent cellular cytotoxicity.
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52
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Lai Z, Zhang M, Zhou J, Chen T, Li D, Shen X, Liu J, Zhou J, Li Z. Fe 3O 4@PANI: a magnetic polyaniline nanomaterial for highly efficient and handy enrichment of intact N-glycopeptides. Analyst 2021; 146:4261-4267. [PMID: 34105527 DOI: 10.1039/d1an00580d] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Glycosylation of proteins plays important roles in the occurrence and development of chronic diseases. In this study, we report an enrichment method of intact N-glycopeptides using a magnetic polyaniline nanomaterial (Fe3O4@PANI). Under the synergistic effect of hydrogen bonding and electrostatic adsorption, Fe3O4@PANI can rapidly and easily enrich N-glycopeptides derived from standard protein (bovine fetuin and transferrin) tryptic digests and serum haptoglobin tryptic digests. Finally we have detected 63 glycopeptides in the glycosylation sites of both N204 and N211 from the serum haptoglobin beta chain using MALDI FTICR MS. Compared with non-magnetic materials, Fe3O4@PANI can achieve complete separation from complex biological samples, meeting the requirement of the high purity of samples for mass spectrometric detection. Overall, Fe3O4@PANI exhibits great application potential in the highly efficient enrichment of intact N-glycopeptides due to its stability and convenient preparation.
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Affiliation(s)
- Zhizhen Lai
- Department of Biophysics and Structural Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences & School of Basic Medicine, Peking Union Medical College, 5 Dongdan San Tiao, Beijing 100005, China.
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53
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Furuta T, Oda T, Kiyoi K, Yusuke O, Kimura S, Kurimori K, Miyazaki Y, Yu Y, Furuya K, Akashi Y, Shimomura O, Tateno H. Carcinoembryonic antigen as a specific glycoprotein ligand of rBC2LCN lectin on pancreatic ductal adenocarcinoma cells. Cancer Sci 2021; 112:3722-3731. [PMID: 34115906 PMCID: PMC8409409 DOI: 10.1111/cas.15023] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Revised: 06/09/2021] [Accepted: 06/10/2021] [Indexed: 12/26/2022] Open
Abstract
The rBC2LCN lectin, known as a stem cell marker probe that binds to an H type 3 fucosylated trisaccharide motif, was recently revealed to also bind to pancreatic ductal adenocarcinoma (PDAC) cells. A lectin‐drug conjugate was generated by fusing rBC2LCN with a cytocidal toxin, and it showed a strong anticancer effect in in vitro and in vivo PDAC models. However, it is unclear which molecules are carrier proteins of rBC2LCN on PDAC cells. In this study, we identified a rBC2LCN‐positive glycoprotein expressed in PDAC. Tumor lysates of PDAC patient‐derived xenografts (PDXs) were coprecipitated with rBC2LCN lectin and analyzed by liquid chromatography–mass spectrometry. A total of 343 proteins were initially identified. We used a web‐based database to select five glycoproteins and independently evaluated their expression in PDAC by immunohistochemistry (IHC). Among them, we focused on carcinoembryonic antigen 5 (CEA) as the most cancer‐specific carrier protein in PDAC, as it showed the most prominent difference in expression rate between PDAC cells (74%) and normal pancreatic duct cells (0%, P > .0001). rBC2LCN lectin and CEA colocalization in PDAC samples was confirmed by double‐staining analysis. Furthermore, rBC2LCN‐precipitated fractions were blotted with an anti‐CEA polyclonal antibody (pAb), and CEA pAb–precipitated fractions were blotted with rBC2LCN lectin. The results demonstrate that CEA is in fact a ligand of rBC2LCN lectin.
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Affiliation(s)
- Tomoaki Furuta
- Faculty of Medicine, Department of Surgery, Clinical Sciences, University of Tsukuba, Tsukuba, Japan.,Cellular and Molecular Biotechnology Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Japan
| | - Tatsuya Oda
- Faculty of Medicine, Department of Surgery, Clinical Sciences, University of Tsukuba, Tsukuba, Japan
| | - Kayo Kiyoi
- Cellular and Molecular Biotechnology Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Japan
| | - Ozawa Yusuke
- Faculty of Medicine, Department of Surgery, Clinical Sciences, University of Tsukuba, Tsukuba, Japan
| | - Sota Kimura
- Faculty of Medicine, Department of Surgery, Clinical Sciences, University of Tsukuba, Tsukuba, Japan
| | - Ko Kurimori
- Faculty of Medicine, Department of Surgery, Clinical Sciences, University of Tsukuba, Tsukuba, Japan
| | - Yoshihiro Miyazaki
- Faculty of Medicine, Department of Surgery, Clinical Sciences, University of Tsukuba, Tsukuba, Japan
| | - Yang Yu
- Faculty of Medicine, Department of Surgery, Clinical Sciences, University of Tsukuba, Tsukuba, Japan
| | - Kinji Furuya
- Faculty of Medicine, Department of Surgery, Clinical Sciences, University of Tsukuba, Tsukuba, Japan
| | - Yoshimasa Akashi
- Faculty of Medicine, Department of Surgery, Clinical Sciences, University of Tsukuba, Tsukuba, Japan
| | - Osamu Shimomura
- Faculty of Medicine, Department of Surgery, Clinical Sciences, University of Tsukuba, Tsukuba, Japan
| | - Hiroaki Tateno
- Cellular and Molecular Biotechnology Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Japan
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54
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Blaschke CRK, McDowell CT, Black AP, Mehta AS, Angel PM, Drake RR. Glycan Imaging Mass Spectrometry: Progress in Developing Clinical Diagnostic Assays for Tissues, Biofluids, and Cells. Clin Lab Med 2021; 41:247-266. [PMID: 34020762 PMCID: PMC8862151 DOI: 10.1016/j.cll.2021.03.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
N-glycan imaging mass spectrometry (IMS) can rapidly and reproducibly identify changes in disease-associated N-linked glycosylation that are linked with histopathology features in standard formalin-fixed paraffin-embedded tissue samples. It can detect multiple N-glycans simultaneously and has been used to identify specific N-glycans and carbohydrate structural motifs as possible cancer biomarkers. Recent advancements in instrumentation and sample preparation are also discussed. The tissue N-glycan IMS workflow has been adapted to new glass slide-based assays for effective and rapid analysis of clinical biofluids, cultured cells, and immunoarray-captured glycoproteins for detection of changes in glycosylation associated with disease.
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Affiliation(s)
- Calvin R K Blaschke
- Department of Cell and Molecular Pharmacology, Medical University of South Carolina, 173 Ashley Avenue, BSB 358, Charleston, SC 29425, USA
| | - Colin T McDowell
- Department of Cell and Molecular Pharmacology, Medical University of South Carolina, 173 Ashley Avenue, BSB 358, Charleston, SC 29425, USA
| | - Alyson P Black
- Department of Cell and Molecular Pharmacology, Medical University of South Carolina, 173 Ashley Avenue, BSB 358, Charleston, SC 29425, USA
| | - Anand S Mehta
- Department of Cell and Molecular Pharmacology, Medical University of South Carolina, 173 Ashley Avenue, BSB 358, Charleston, SC 29425, USA
| | - Peggi M Angel
- Department of Cell and Molecular Pharmacology, Medical University of South Carolina, 173 Ashley Avenue, BSB 358, Charleston, SC 29425, USA
| | - Richard R Drake
- Department of Cell and Molecular Pharmacology, Medical University of South Carolina, 173 Ashley Avenue, BSB 358, Charleston, SC 29425, USA.
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Huang Y, Zhang HL, Li ZL, Du T, Chen YH, Wang Y, Ni HH, Zhang KM, Mai J, Hu BX, Huang JH, Zhou LH, Yang D, Peng XD, Feng GK, Tang J, Zhu XF, Deng R. FUT8-mediated aberrant N-glycosylation of B7H3 suppresses the immune response in triple-negative breast cancer. Nat Commun 2021; 12:2672. [PMID: 33976130 PMCID: PMC8113546 DOI: 10.1038/s41467-021-22618-x] [Citation(s) in RCA: 71] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Accepted: 03/15/2021] [Indexed: 02/07/2023] Open
Abstract
Most patients with triple negative breast cancer (TNBC) do not respond to anti-PD1/PDL1 immunotherapy, indicating the necessity to explore immune checkpoint targets. B7H3 is a highly glycosylated protein. However, the mechanisms of B7H3 glycosylation regulation and whether the sugar moiety contributes to immunosuppression are unclear. Here, we identify aberrant B7H3 glycosylation and show that N-glycosylation of B7H3 at NXT motif sites is responsible for its protein stability and immunosuppression in TNBC tumors. The fucosyltransferase FUT8 catalyzes B7H3 core fucosylation at N-glycans to maintain its high expression. Knockdown of FUT8 rescues glycosylated B7H3-mediated immunosuppressive function in TNBC cells. Abnormal B7H3 glycosylation mediated by FUT8 overexpression can be physiologically important and clinically relevant in patients with TNBC. Notably, the combination of core fucosylation inhibitor 2F-Fuc and anti-PDL1 results in enhanced therapeutic efficacy in B7H3-positive TNBC tumors. These findings suggest that targeting the FUT8-B7H3 axis might be a promising strategy for improving anti-tumor immune responses in patients with TNBC.
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Affiliation(s)
- Yun Huang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Hai-Liang Zhang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Zhi-Ling Li
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Tian Du
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Sun Yat-sen University Cancer Center, Guangzhou, China
- Department of Breast Oncology, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Yu-Hong Chen
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Yan Wang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Sun Yat-sen University Cancer Center, Guangzhou, China
- Department of Breast Oncology, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Huan-He Ni
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Kai-Ming Zhang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Sun Yat-sen University Cancer Center, Guangzhou, China
- Department of Breast Oncology, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Jia Mai
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Bing-Xin Hu
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Jun-Hao Huang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Sun Yat-sen University Cancer Center, Guangzhou, China
- Department of Breast Oncology, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Li-Huan Zhou
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Sun Yat-sen University Cancer Center, Guangzhou, China
- Department of Breast Oncology, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Dong Yang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Xiao-Dan Peng
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Gong-Kan Feng
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Jun Tang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Sun Yat-sen University Cancer Center, Guangzhou, China.
- Department of Breast Oncology, Sun Yat-sen University Cancer Center, Guangzhou, China.
| | - Xiao-Feng Zhu
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Sun Yat-sen University Cancer Center, Guangzhou, China.
| | - Rong Deng
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Sun Yat-sen University Cancer Center, Guangzhou, China.
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56
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Zhang R, Yang Q, Boruah BM, Zong G, Li C, Chapla D, Yang JY, Moremen KW, Wang LX. Appropriate aglycone modification significantly expands the glycan substrate acceptability of α1,6-fucosyltransferase (FUT8). Biochem J 2021; 478:1571-1583. [PMID: 33734311 PMCID: PMC8062310 DOI: 10.1042/bcj20210138] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 03/17/2021] [Accepted: 03/17/2021] [Indexed: 12/16/2022]
Abstract
The α1,6-fucosyltransferase, FUT8, is the sole enzyme catalyzing the core-fucosylation of N-glycoproteins in mammalian systems. Previous studies using free N-glycans as acceptor substrates indicated that a terminal β1,2-GlcNAc moiety on the Man-α1,3-Man arm of N-glycan substrates is required for efficient FUT8-catalyzed core-fucosylation. In contrast, we recently demonstrated that, in a proper protein context, FUT8 could also fucosylate Man5GlcNAc2 without a GlcNAc at the non-reducing end. We describe here a further study of the substrate specificity of FUT8 using a range of N-glycans containing different aglycones. We found that FUT8 could fucosylate most of high-mannose and complex-type N-glycans, including highly branched N-glycans from chicken ovalbumin, when the aglycone moiety is modified with a 9-fluorenylmethyloxycarbonyl (Fmoc) moiety or in a suitable peptide/protein context, even if they lack the terminal GlcNAc moiety on the Man-α1,3-Man arm. FUT8 could also fucosylate paucimannose structures when they are on glycoprotein substrates. Such core-fucosylated paucimannosylation is a prominent feature of lysosomal proteins of human neutrophils and several types of cancers. We also found that sialylation of N-glycans significantly reduced their activity as a substrate of FUT8. Kinetic analysis demonstrated that Fmoc aglycone modification could either improve the turnover rate or decrease the KM value depending on the nature of the substrates, thus significantly enhancing the overall efficiency of FUT8 catalyzed fucosylation. Our results indicate that an appropriate aglycone context of N-glycans could significantly broaden the acceptor substrate specificity of FUT8 beyond what has previously been thought.
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Affiliation(s)
- Roushu Zhang
- Department of Chemistry and Biochemistry, University of Maryland, College Park, MD 20742
| | - Qiang Yang
- Department of Chemistry and Biochemistry, University of Maryland, College Park, MD 20742
| | - Bhargavi M Boruah
- Complex Carbohydrate Research Center, University of Georgia, Athens, GA 30602
| | - Guanghui Zong
- Department of Chemistry and Biochemistry, University of Maryland, College Park, MD 20742
| | - Chao Li
- Department of Chemistry and Biochemistry, University of Maryland, College Park, MD 20742
| | - Digantkumar Chapla
- Complex Carbohydrate Research Center, University of Georgia, Athens, GA 30602
| | - Jeong-Yeh Yang
- Complex Carbohydrate Research Center, University of Georgia, Athens, GA 30602
| | - Kelley W Moremen
- Complex Carbohydrate Research Center, University of Georgia, Athens, GA 30602
| | - Lai-Xi Wang
- Department of Chemistry and Biochemistry, University of Maryland, College Park, MD 20742
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57
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García Y, Úsuga BA, Campos CH, Alderete JB, Jiménez VA. NanoMIPs Design for Fucose and Mannose Recognition: A Molecular Dynamics Approach. J Chem Inf Model 2021; 61:2048-2061. [PMID: 33784106 DOI: 10.1021/acs.jcim.0c01446] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Nanoscale molecularly imprinted polymers (nanoMIPs) are powerful molecular recognition tools with broad applications in the diagnosis, prognosis, and treatment of complex diseases. In this work, fully atomistic molecular dynamics (MD) simulations are used to assist the design of nanoMIPs with recognition capacity toward l-fucose and d-mannose as prototype disease biomarkers. MD simulations were conducted on prepolymerization mixtures containing different molar ratios of the monomers N-isopropylacrylamide (NIPAM), methacrylamide (MAM), and (4-acrylamidophenyl)(amino)methaniminium acetate (AB) and fixed molar ratios of the cross-linker ethylene glycol dimethacrylate (EGDMA) in explicit acetonitrile as the porogenic solvent. Prepolymerization mixtures containing ternary mixtures of NIPAM (50%), MAM (25%), and AB (25%) exhibit the best imprinting potential for both l-fucose and d-mannose, as they maximize (i) the stability of template-monomer plus template-cross-linker interactions, (ii) the number of functional monomers plus cross-linkers organized around the template, and (iii) the number of hydrogen bonds participating in template recognition. The studied prepolymerization mixtures exhibit an overall increased recognition capacity toward d-mannose over l-fucose, which is attributed to the higher hydrogen-bonding capacity of the former template. Our results are valuable to guide the synthesis of efficient nanoMIPs for sugar recognition and provide a computational framework extensible to any other template, monomer, or cross-linker combination, thus constituting a promising strategy for the rational design of molecularly imprinted materials.
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Affiliation(s)
- Yadiris García
- Instituto de Química de Recursos Naturales, Universidad de Talca, Avenida Lircay S/N, Talca, Chile 3460000
| | - Brandon A Úsuga
- Departamento de Ciencias Químicas, Facultad de Ciencias Exactas, Universidad Andres Bello, Sede Concepción, Autopista Concepción-Talcahuano 7100, Talcahuano, Chile 4300866
| | - Cristian H Campos
- Departamento de Físico-Química, Facultad de Ciencias Químicas, Universidad de Concepción, Edmundo Larenas 129, Concepción, Chile 4070371
| | - Joel B Alderete
- Instituto de Química de Recursos Naturales, Universidad de Talca, Avenida Lircay S/N, Talca, Chile 3460000
| | - Verónica A Jiménez
- Departamento de Ciencias Químicas, Facultad de Ciencias Exactas, Universidad Andres Bello, Sede Concepción, Autopista Concepción-Talcahuano 7100, Talcahuano, Chile 4300866
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58
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Kim T, Xie Y, Li Q, Artegoitia VM, Lebrilla CB, Keim NL, Adams SH, Krishnan S. Diet affects glycosylation of serum proteins in women at risk for cardiometabolic disease. Eur J Nutr 2021; 60:3727-3741. [PMID: 33770218 PMCID: PMC8437848 DOI: 10.1007/s00394-021-02539-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Accepted: 03/11/2021] [Indexed: 02/06/2023]
Abstract
Background Glycoproteomics deals with glycoproteins that are formed by post-translational modification when sugars (like fucose and sialic acid) are attached to protein. Glycosylation of proteins influences function, but whether glycosylation is altered by diet is unknown. Objective To evaluate the effect of consuming a diet based on the Dietary Guidelines for Americans on circulating glycoproteins that have previously been associated with cardiometabolic diseases. Design Forty-four women, with one or more metabolic syndrome characteristics, completed an 8-week randomized controlled feeding intervention (n = 22) consuming a diet based on the Dietary Guidelines for Americans (DGA 2010); the remaining consumed a ‘typical American diet’ (TAD, n = 22). Fasting serum samples were obtained at week0 (baseline) and week8 (post-intervention); 17 serum proteins were chosen for targeted analyses. Protein standards and serum samples were analyzed in a UHPLC-MS protocol to determine peptide concentration and their glycan (fucosylation or sialylation) profiles. Data at baseline were used in correlational analyses; change in proteins and glycans following intervention were used in non-parametric analyses. Results At baseline, women with more metabolic syndrome characteristics had more fucosylation (total di-fucosylated proteins: p = 0.045) compared to women with a lesser number of metabolic syndrome characteristics. Dietary refined grain intake was associated with increased total fucosylation (ρ = − 0.530, p < 0.001) and reduced total sialylation (ρ = 0.311, p = 0.042). After the 8-week intervention, there was higher sialylation following the DGA diet (Total di-sialylated protein p = 0.018, poly-sialylated orosomucoid p = 0.012) compared to the TAD diet. Conclusions Based on this study, glycosylation of proteins is likely affected by dietary patterns; higher sialylation was associated with a healthier diet pattern. Altered glycosylation is associated with several diseases, particularly cancer and type 2 diabetes, and this study raises the possibility that diet may influence disease state by altering glycosylation. Clinical trial registration NCT02298725 at clinicaltrials.gov; https://clinicaltrials.gov/ct2/show/NCT02298725. Supplementary Information The online version contains supplementary material available at 10.1007/s00394-021-02539-7.
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Affiliation(s)
- Tyler Kim
- Global Disease Biology, University of California Davis, Davis, USA
| | - Yixuan Xie
- Department of Chemistry, University of California Davis, Davis, USA
| | - Qiongyu Li
- Department of Chemistry, University of California Davis, Davis, USA
| | - Virginia M Artegoitia
- Obesity and Metabolism Research Unit, USDA-WHNRC, 430 W. Health Sciences Drive, Davis, CA, 95616, USA
| | | | - Nancy L Keim
- Obesity and Metabolism Research Unit, USDA-WHNRC, 430 W. Health Sciences Drive, Davis, CA, 95616, USA.,Department of Nutrition, University of California Davis, Davis, USA
| | - Sean H Adams
- Department of Surgery, University of California Davis School of Medicine, Sacramento, USA.,Center for Alimentary and Metabolic Science, University of California Davis School of Medicine, Sacramento, USA
| | - Sridevi Krishnan
- Obesity and Metabolism Research Unit, USDA-WHNRC, 430 W. Health Sciences Drive, Davis, CA, 95616, USA. .,Department of Nutrition, University of California Davis, Davis, USA.
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59
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Analysis of ADAM12-Mediated Ephrin-A1 Cleavage and Its Biological Functions. Int J Mol Sci 2021; 22:ijms22052480. [PMID: 33804570 PMCID: PMC7957476 DOI: 10.3390/ijms22052480] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 02/19/2021] [Accepted: 02/24/2021] [Indexed: 12/31/2022] Open
Abstract
Accumulating evidence indicates that an elevated ephrin-A1 expression is positively correlated with a worse prognosis in some cancers such as colon and liver cancer. The detailed mechanism of an elevated ephrin-A1 expression in a worse prognosis still remains to be fully elucidated. We previously reported that ADAM12-cleaved ephrin-A1 enhanced lung vascular permeability and thereby induced lung metastasis. However, it is still unclear whether or not cleaved forms of ephrin-A1 are derived from primary tumors and have biological activities. We identified the ADAM12-mediated cleavage site of ephrin-A1 by a Matrix-assisted laser desorption ionization mass spectrometry and checked levels of ephrin-A1 in the serum and the urine derived from the primary tumors by using a mouse model. We found elevated levels of tumor-derived ephrin-A1 in the serum and the urine in the tumor-bearing mice. Moreover, inhibition of ADAM-mediated cleavage of ephrin-A1 or antagonization of the EphA receptors resulted in a significant reduction of lung metastasis. The results suggest that tumor-derived ephrin-A1 is not only a potential biomarker to predict lung metastasis from the primary tumor highly expressing ephrin-A1 but also a therapeutic target of lung metastasis.
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60
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Li Y, Wei S, Zhang Z. MicroRNA-200b relieves LPS-induced inflammatory injury by targeting FUT4 in knee articular chondrocytes in vitro. Exp Ther Med 2021; 21:407. [PMID: 33692838 PMCID: PMC7938448 DOI: 10.3892/etm.2021.9838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Accepted: 09/29/2020] [Indexed: 11/06/2022] Open
Abstract
Osteoarthritis (OA), characterized by the degeneration of articular cartilage, is a major problem in aging populations, and cartilage chondrocytes have been indicated to serve a curial role in the progression of OA. MicroRNA-200b-3p (miR-200b) was preliminarily identified to participate in OA. However, its role and mechanism of action in injured chondrocytes in OA remain unclear to date. In the present study, lipopolysaccharide (LPS)-treated cells isolated from normal knee articular cartilage were used to mimic inflammatory injury of OA chondrocytes. Cell viability, apoptosis and inflammatory responses were detected using Cell Counting Kit-8, flow cytometry and enzyme-linked immunosorbent assay, respectively. The expression levels of miR-200b and fucosyltransferase-4 (FUT4) were measured by reverse transcription-quantitative PCR and western blotting. The association between miR-200b and FUT4 was verified using TargetScan software, dual-luciferase reporter assay and RNA immunoprecipitation. The results indicated that LPS treatment decreased cell viability of primary chondrocytes, and increased apoptosis rate and production of IL-1β, IL-6 and TNF-α. The expression level of miR-200b was downregulated, and that of FUT4 was upregulated in OA cartilage tissues and LPS-treated normal chondrocytes compared with normal cartilage tissues and chondrocytes. Overexpression of miR-200b via transfection with miR-200b mimic inhibited the apoptosis rate and reduced the levels of IL-1β, IL-6 and TNF-α in LPS-stimulated chondrocytes. However, the suppressive effect of miR-200b overexpression on the LPS-induced inflammatory injury in chondrocytes was reversed by the restoration of FUT4 levels. Notably, FUT4 was indicated to be a downstream target of miR-200b and was negatively regulated by miR-200b. Taken together, the results of the current study indicated that miR-200b protected chondrocytes from LPS-induced inflammatory injury in vitro by targeting FUT4. These findings revealed the miR-200b/FUT4 axis as a potential candidate to target the degeneration of cartilages, thereby inhibiting the progression of OA.
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Affiliation(s)
- Yintai Li
- Department of Rehabilitation, Baoji Traditional Chinese Medicine Hospital, Baoji, Shaanxi 721000, P.R. China
| | - Suizhuan Wei
- Department of Orthopedics, Baoji Traditional Chinese Medicine Hospital, Baoji, Shaanxi 721000, P.R. China
| | - Zhongping Zhang
- Department of Orthopedics, Yan'an People's Hospital, Yan'an, Shaanxi 716000, P.R. China
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61
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Pijnenborg JFA, Visser EA, Noga M, Rossing E, Veizaj R, Lefeber DJ, Büll C, Boltje TJ. Cellular Fucosylation Inhibitors Based on Fluorinated Fucose-1-phosphates*. Chemistry 2021; 27:4022-4027. [PMID: 33336886 PMCID: PMC7986151 DOI: 10.1002/chem.202005359] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Indexed: 12/22/2022]
Abstract
Fucosylation of glycans impacts a myriad of physiological and pathological processes. Inhibition of fucose expression emerges as a potential therapeutic avenue for example in cancer, inflammation, and infection. In this study, we found that protected 2-fluorofucose 1-phosphate efficiently inhibits cellular fucosylation with a four to seven times higher potency than known inhibitor 2FF, independently of the anomeric stereochemistry. Nucleotide sugar analysis revealed that both the α- and β-GDP-2FF anomers are formed inside the cell. In conclusion, we developed A2FF1P and B2FF1P as potent new tools for studying the role of fucosylation in health and disease and they are potential therapeutic candidates.
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Affiliation(s)
- Johan F. A. Pijnenborg
- Department of Synthetic Organic ChemistryInstitute for Molecules and MaterialsRadboud UniversityHeyendaalseweg 1356525AJNijmegenThe Netherlands
| | - Eline A. Visser
- Department of Synthetic Organic ChemistryInstitute for Molecules and MaterialsRadboud UniversityHeyendaalseweg 1356525AJNijmegenThe Netherlands
| | - Marek Noga
- Department of Laboratory MedicineTranslational Metabolic LaboratoryRadboud Institute for Molecular Life SciencesRadboud University Medical CenterGeert Grooteplein Zuid 106525GANijmegenThe Netherlands
| | - Emiel Rossing
- Department of Synthetic Organic ChemistryInstitute for Molecules and MaterialsRadboud UniversityHeyendaalseweg 1356525AJNijmegenThe Netherlands
| | - Raisa Veizaj
- Department of NeurologyDonders Institute for Brain, Cognition, and BehaviorRadboud University Medical CenterGeert Grooteplein Zuid 106525GANijmegenThe Netherlands
| | - Dirk J. Lefeber
- Department of Laboratory MedicineTranslational Metabolic LaboratoryRadboud Institute for Molecular Life SciencesRadboud University Medical CenterGeert Grooteplein Zuid 106525GANijmegenThe Netherlands
- Department of NeurologyDonders Institute for Brain, Cognition, and BehaviorRadboud University Medical CenterGeert Grooteplein Zuid 106525GANijmegenThe Netherlands
| | - Christian Büll
- Hubrecht InstituteUppsalalaan 83584 CTUtrechtThe Netherlands
| | - Thomas J. Boltje
- Department of Synthetic Organic ChemistryInstitute for Molecules and MaterialsRadboud UniversityHeyendaalseweg 1356525AJNijmegenThe Netherlands
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62
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Ma M, Han G, Wang Y, Zhao Z, Guan F, Li X. Role of FUT8 expression in clinicopathology and patient survival for various malignant tumor types: a systematic review and meta-analysis. Aging (Albany NY) 2020; 13:2212-2230. [PMID: 33323540 PMCID: PMC7880376 DOI: 10.18632/aging.202239] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Accepted: 10/22/2020] [Indexed: 12/28/2022]
Abstract
Dysregulation of α(1,6)-fucosyltransferase (FUT8) plays significant roles in development of a variety of malignant tumor types. We collected as many relevant articles and microarray datasets as possible to assess the prognostic value of FUT8 expression in malignant tumors. For this purpose, we systematically searched PubMed, Embase, Web of Science, Springer, Chinese National Knowledge Infrastructure (CNKI), and Wan Fang, and eventually identified 7 articles and 35 microarray datasets (involving 6124 patients and 10 tumor types) for inclusion in meta-analysis. In each tumor type, FUT8 expression showed significant (p< 0.05) correlation with one or more clinicopathological parameters; these included patient gender, molecular subgroup, histological grade, TNM stage, estrogen receptor, progesterone receptor, and recurrence status. In regard to survival prognosis, FUT8 expression level was associated with overall survival in non-small cell lung cancer (NSCLC), breast cancer, diffuse large B cell lymphoma, gastric cancer, and glioma. FUT8 expression was also correlated with disease-free survival in NSCLC, breast cancer, and colorectal cancer, and with relapse-free survival in pancreatic ductal adenocarcinoma. For most tumor types, survival prognosis of patients with high FUT8 expression was related primarily to clinical features such as gender, tumor stage, age, and pathological category. Our systematic review and meta-analysis confirmed the association of FUT8 with clinicopathological features and patient survival rates for numerous malignant tumor types. Verification of prognostic value of FUT8 in these tumor types will require a large-scale study using standardized methods of detection and analysis.
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Affiliation(s)
- Minxing Ma
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Institute of Hematology, School of Medicine, Northwest University, Xi'an, China.,Department of Oncology, The Fifth People's Hospital of Qinghai Province, Xining, China
| | - Guoxiong Han
- Department of Oncology, The Fifth People's Hospital of Qinghai Province, Xining, China
| | - Yi Wang
- Department of Hematology, Provincial People's Hospital, Xi'an, Shaanxi, China
| | - Ziyan Zhao
- Joint International Research Laboratory of Glycobiology and Medicinal Chemistry, College of Life Science, Northwest University, Xi'an, China
| | - Feng Guan
- Joint International Research Laboratory of Glycobiology and Medicinal Chemistry, College of Life Science, Northwest University, Xi'an, China
| | - Xiang Li
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Institute of Hematology, School of Medicine, Northwest University, Xi'an, China.,Joint International Research Laboratory of Glycobiology and Medicinal Chemistry, College of Life Science, Northwest University, Xi'an, China
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63
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Takeda K, Kusuoka R, Inukai M, Igarashi K, Ohno H, Nakamura N. An amperometric biosensor of L-fucose in urine for the first screening test of cancer. Biosens Bioelectron 2020; 174:112831. [PMID: 33288426 DOI: 10.1016/j.bios.2020.112831] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 11/15/2020] [Accepted: 11/17/2020] [Indexed: 01/18/2023]
Abstract
Quantitative routine detection of fucose, which is a cancer marker, in urine is effective for the preliminary screening of cancer. Amperometric biosensing methods have the advantage of being simple, rapid, and precise for urinalysis. However, coexisting electroactive interferences such as ascorbic acid (AA), dopamine (DA), and uric acid (UA) prevent accurate measurements. In this work, an amperometric l-fucose biosensor unaffected by interferences was developed and utilizes direct electron transfer type bioelectrocatalysis of pyrroloquinoline quinone (PQQ)-dependent pyranose dehydrogenase from Coprinopsis cinerea (CcPDH). The isolated PQQ domain from CcPDH was immobilized on gold nanoparticle (AuNP)-modified electrodes, which obtained a catalytic current at a lower potential than the oxidation potential of the interfering compounds. Applying an operating potential of -0.1 V vs. Ag|AgCl (3 M NaCl) enabled the detection of l-fucose while completely eliminating the oxidation of AA, DA, and UA on the electrodes. The increase in the specific area of the electrodes by increasing the AuNP drop-casting time resulted in an improvement in the sensor performance. The biosensor exhibited a linear range for l-fucose detection between 0.1 mM and 1 mM (R2 = 0.9996), including a cut-off value, the sensitivity was 3.12 ± 0.05 μA mM-1 cm-2, and the detection limit was 13.6 μM at a signal-to-noise ratio of three. The biosensor can be used to quantify the concentration of l-fucose at physiological levels and does not require urine preprocessing, making it applicable to practical use for point-of-care testing with urine.
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Affiliation(s)
- Kouta Takeda
- Department of Biotechnology and Life Science, Tokyo University of Agriculture and Technology, Koganei, Tokyo, 184-8588, Japan
| | - Ryo Kusuoka
- Department of Biotechnology and Life Science, Tokyo University of Agriculture and Technology, Koganei, Tokyo, 184-8588, Japan
| | - Misaki Inukai
- Department of Biotechnology and Life Science, Tokyo University of Agriculture and Technology, Koganei, Tokyo, 184-8588, Japan
| | - Kiyohiko Igarashi
- Department of Biomaterial Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, 113-8657, Japan; Protein Discovery and Engineering Team, VTT Technical Research Center of Finland Ltd., FI-02044 VTT, Espoo, Finland
| | - Hiroyuki Ohno
- Department of Biotechnology and Life Science, Tokyo University of Agriculture and Technology, Koganei, Tokyo, 184-8588, Japan
| | - Nobuhumi Nakamura
- Department of Biotechnology and Life Science, Tokyo University of Agriculture and Technology, Koganei, Tokyo, 184-8588, Japan.
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64
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Nolfi D, Capone A, Rosati F, Della Giovampaola C. The alpha-1,2 fucosylated tubule system of DU145 prostate cancer cells is derived from a partially fragmented Golgi complex and its formation is actin-dependent. Exp Cell Res 2020; 396:112324. [PMID: 33065114 DOI: 10.1016/j.yexcr.2020.112324] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 10/10/2020] [Accepted: 10/11/2020] [Indexed: 01/02/2023]
Abstract
In previous work, we showed that highly proliferative cells and cancer cells, but not cells with normal growth rate, have tubules rich in alpha-1,2 fucosylated epitopes that extend radially from the nucleus to the cell periphery and form an unusual uptake system. The importance of alpha-1,2 fucosylation in forming tubules was demonstrated by proving that down-regulating the two corresponding fucosyltransferases (FUT1 and FUT2) causes tubule fragmentation. Here, we present evidence that in the prostate cancer cell line DU145, the tubules arise in actively growing cells from vesicles in the medial and trans elements of a partially fragmented Golgi complex, while in not actively growing cells the tubules become completely independent from the Golgi complex. Formation and elongation of the tubules proved to depend on the actin cytoskeleton, since the alpha-1,2 fucosylated protein(s) segregate with the cytoskeleton proteins, and not in the membrane fraction, as do the Golgi markers and other fucosylated proteins, while depolymerization of the actin filaments causes tubule fragmentation and shifting of the alpha-1,2 fucosylated proteins into the membrane fraction.
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Affiliation(s)
- Domenico Nolfi
- Department of Life Sciences, University of Siena, Via Aldo Moro 2, 53100, Siena, Italy.
| | - Antonietta Capone
- Department of Life Sciences, University of Siena, Via Aldo Moro 2, 53100, Siena, Italy
| | - Floriana Rosati
- Department of Life Sciences, University of Siena, Via Aldo Moro 2, 53100, Siena, Italy; Accademia dei Fisiocritici, Via Mattioli 5, 53100, Siena, Italy
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65
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Wang SH, Wu TJ, Lee CW, Yu J. Dissecting the conformation of glycans and their interactions with proteins. J Biomed Sci 2020; 27:93. [PMID: 32900381 PMCID: PMC7487937 DOI: 10.1186/s12929-020-00684-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Accepted: 08/26/2020] [Indexed: 12/20/2022] Open
Abstract
The use of in silico strategies to develop the structural basis for a rational optimization of glycan-protein interactions remains a great challenge. This problem derives, in part, from the lack of technologies to quantitatively and qualitatively assess the complex assembling between a glycan and the targeted protein molecule. Since there is an unmet need for developing new sugar-targeted therapeutics, many investigators are searching for technology platforms to elucidate various types of molecular interactions within glycan-protein complexes and aid in the development of glycan-targeted therapies. Here we discuss three important technology platforms commonly used in the assessment of the complex assembly of glycosylated biomolecules, such as glycoproteins or glycosphingolipids: Biacore analysis, molecular docking, and molecular dynamics simulations. We will also discuss the structural investigation of glycosylated biomolecules, including conformational changes of glycans and their impact on molecular interactions within the glycan-protein complex. For glycoproteins, secreted protein acidic and rich in cysteine (SPARC), which is associated with various lung disorders, such as chronic obstructive pulmonary disease (COPD) and lung cancer, will be taken as an example showing that the core fucosylation of N-glycan in SPARC regulates protein-binding affinity with extracellular matrix collagen. For glycosphingolipids (GSLs), Globo H ceramide, an important tumor-associated GSL which is being actively investigated as a target for new cancer immunotherapies, will be used to demonstrate how glycan structure plays a significant role in enhancing angiogenesis in tumor microenvironments.
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Affiliation(s)
- Sheng-Hung Wang
- Institute of Stem Cell and Translational Cancer Research, Chang Gung Memorial Hospital at Linkou, and Chang Gung University, Taoyuan, 333, Taiwan
| | - Tsai-Jung Wu
- Institute of Stem Cell and Translational Cancer Research, Chang Gung Memorial Hospital at Linkou, and Chang Gung University, Taoyuan, 333, Taiwan
| | - Chien-Wei Lee
- Institute of Stem Cell and Translational Cancer Research, Chang Gung Memorial Hospital at Linkou, and Chang Gung University, Taoyuan, 333, Taiwan
| | - John Yu
- Institute of Stem Cell and Translational Cancer Research, Chang Gung Memorial Hospital at Linkou, and Chang Gung University, Taoyuan, 333, Taiwan. .,Institute of Cellular and Organismic Biology, Academia Sinica, Taipei, Taiwan.
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66
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Nummela P, Heiskanen A, Kytölä S, Haglund C, Lepistö A, Satomaa T, Ristimäki A. Altered linkage pattern of N-glycan sialic acids in pseudomyxoma peritonei. Glycobiology 2020; 31:211-222. [PMID: 33539510 DOI: 10.1093/glycob/cwaa079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 07/17/2020] [Accepted: 08/13/2020] [Indexed: 11/13/2022] Open
Abstract
Pseudomyxoma peritonei (PMP) is a highly mucinous adenocarcinoma growing in the peritoneal cavity and most commonly originating from the appendix. Glycans play an important role in carcinogenesis, and glycosylation is altered in malignant diseases, including PMP. We have previously demonstrated that fucosylation of N-glycans is increased in PMP, but we did not observe modulation of overall sialylation. As sialic acids can be attached to the rest of the glycan via α2,3- or α2,6-linkage, we have now analyzed the linkage patterns of sialic acids in tissue specimens of normal appendices, low-grade appendiceal mucinous neoplasms (LAMN), low-grade (LG) PMP and high-grade (HG) PMP. For the linkage analysis, the enzymatically released acidic N-glycans were first treated with ethyl esterification or α2,3-sialidase digestion followed by MALDI-TOF mass spectrometry. Significant increase in the relative abundance of α2,6-sialylated and decrease in α2,3-sialylated N-glycans was observed in PMP tumors as compared to the normal appendices (P < 0.025). More specifically, increased α2,6-sialylation (P < 0.05) and decreased α2,3-sialylation (P < 0.01) were detected in afucosylated and monofucosylated N-glycans of PMPs, whereas the less abundant multifucosylated glycans, containing terminal fucose, demonstrated increased α2,3-sialylation (P < 0.01). Importantly, the increase in α2,6-sialylation was also detected between PMP and the appendiceal precursor lesion LAMN (P < 0.01). The identified glycosylation alterations produce ligands for sialic acid-binding immunoglobulin-like lectins (Siglecs) and sialofucosylated glycans binding selectins, which play a role in the peritoneal dissemination and progression of the disease.
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Affiliation(s)
- Pirjo Nummela
- Applied Tumor Genomics Research Program, Research Programs Unit, Faculty of Medicine, University of Helsinki, Haartmaninkatu 8, FI-00290, Helsinki, Finland
| | | | - Soili Kytölä
- Department of Genetics, HUSLAB, HUS Diagnostic Center, Helsinki University Hospital, Topeliuksenkatu 32, FI-00290 Helsinki, Finland
| | - Caj Haglund
- Department of Surgery, University of Helsinki and Helsinki University Hospital, Stenbäckinkatu 9A, FI-00290 Helsinki, Finland.,Translational Cancer Medicine Research Program, Research Programs Unit, Faculty of Medicine, University of Helsinki, Haartmaninkatu 8, FI-00290, Finland
| | - Anna Lepistö
- Department of Surgery, University of Helsinki and Helsinki University Hospital, Stenbäckinkatu 9A, FI-00290 Helsinki, Finland
| | - Tero Satomaa
- Glykos Finland Ltd, Viikinkaari 6, FI-00790 Helsinki, Finland
| | - Ari Ristimäki
- Applied Tumor Genomics Research Program, Research Programs Unit, Faculty of Medicine, University of Helsinki, Haartmaninkatu 8, FI-00290, Helsinki, Finland.,Department of Pathology, HUSLAB, University of Helsinki and Helsinki University Hospital, Haartmaninkatu 3, FI-00290 Helsinki, Finland
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67
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Yu X, Gao R, Li Y, Zeng C. Regulation of PD-1 in T cells for cancer immunotherapy. Eur J Pharmacol 2020; 881:173240. [PMID: 32497624 DOI: 10.1016/j.ejphar.2020.173240] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 05/28/2020] [Accepted: 05/29/2020] [Indexed: 12/20/2022]
Abstract
Study of the molecular mechanisms underlying cancer immune escape is one of the core issues in immuno-oncology research. Cancer cells can evade T cell cytotoxicity by exploiting the upregulation of T cell inhibitory receptors on T cells and their ligands on cancer cells. These upregulated proteins include the inhibitory receptor programmed cell-death protein 1 (PD-1) and its ligand programmed cell death 1 ligand 1 (PD-L1), which can induce T cell exhaustion and reduce T cell activation. Characterizing PD-1 regulation will help to elucidate the molecular mechanisms underlying T cell exhaustion and improve cancer treatment. Recent studies have found that tumor cells regulate PD-1 during gene transcription, post-transcriptional regulation, and post-translational modification and influence the effects of the anticancer immune response by targeting PD-1. In this review,we summarize the mechanisms of PD-1 regulation in T cells.
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Affiliation(s)
- Xibao Yu
- Key Laboratory for Regenerative Medicine of Ministry of Education, Institute of Hematology, Jinan University, Guangzhou, 510632, China; Department of Experimental Research, Sun Yat-sen University Cancer Center, State Key Laboratory Oncology in South China, Guangzhou, 510060, China
| | - Rili Gao
- Key Laboratory for Regenerative Medicine of Ministry of Education, Institute of Hematology, Jinan University, Guangzhou, 510632, China
| | - Yangqiu Li
- Key Laboratory for Regenerative Medicine of Ministry of Education, Institute of Hematology, Jinan University, Guangzhou, 510632, China.
| | - Chengwu Zeng
- Key Laboratory for Regenerative Medicine of Ministry of Education, Institute of Hematology, Jinan University, Guangzhou, 510632, China.
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68
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Oh EJ, Bychkov A, Cho H, Kim TM, Bae JS, Lim DJ, Jung CK. Prognostic Implications of CD10 and CD15 Expression in Papillary Thyroid Carcinoma. Cancers (Basel) 2020; 12:cancers12061413. [PMID: 32486143 PMCID: PMC7352591 DOI: 10.3390/cancers12061413] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 05/28/2020] [Accepted: 05/28/2020] [Indexed: 02/07/2023] Open
Abstract
Patients with papillary thyroid carcinoma (PTC) have excellent survival, but recurrence remains a major problem in the management of PTC. We aimed to determine the prognostic impact of the expression of CD10 and CD15 in patients with PTC. Immunohistochemistry for CD10 and CD15 was performed on the tissue microarrays of 515 patients with PTC. The expression of CD10 and CD15 was detected in 201 (39.0%) and 295 (57.3%) of 515 PTC cases, respectively, but not in the adjacent benign thyroid tissue. Recurrence was inversely correlated with CD15 expression (p = 0.034) but not with CD10 expression. In 467 PTC patients treated with radioiodine remnant ablation, the CD15 expression had an adjusted hazard ratio of 0.500 (p = 0.024) for recurrence-free survival and an adjusted odds ratio of 2.678 (p = 0.015) for predicting long-term excellent therapeutic response. CD10 expression was not associated with clinical outcomes. In the Cancer Genome Atlas dataset, the expression level of FUT4 (CD15) mRNA was higher in the low/intermediate-risk group for recurrence than in the high-risk group and exhibited positive correlation with SLC5A5 (NIS) mRNA expression (p = 0.003). Taken together, CD15 expression was identified as an independent prognostic marker for improved prognosis in PTC patients.
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Affiliation(s)
- Eun Ji Oh
- Department of Hospital Pathology, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea
- Cancer Research Institute, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea
- Department of Pathology, Green Cross Laboratories, Yongin-si, Gyeonggi-do 16924, Korea
| | - Andrey Bychkov
- Department of Pathology, Kameda Medical Center, Kamogawa, Chiba 296-8602, Japan
- Department of Pathology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki 852-8523, Japan
| | - Haejin Cho
- Cancer Research Institute, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea
- Department of Medical Informatics, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea
- Department of Biomedicine & Health Sciences, Graduate School, The Catholic University of Korea, Seoul 06591, Korea
| | - Tae-Min Kim
- Cancer Research Institute, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea
- Department of Medical Informatics, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea
- Department of Biomedicine & Health Sciences, Graduate School, The Catholic University of Korea, Seoul 06591, Korea
| | - Ja Seong Bae
- Cancer Research Institute, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea
- Department of Surgery, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea
| | - Dong-Jun Lim
- Cancer Research Institute, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea
- Department of Endocrinology and Metabolism, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea
| | - Chan Kwon Jung
- Department of Hospital Pathology, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea
- Cancer Research Institute, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea
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69
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Structural basis for substrate specificity and catalysis of α1,6-fucosyltransferase. Nat Commun 2020; 11:973. [PMID: 32080177 PMCID: PMC7033129 DOI: 10.1038/s41467-020-14794-z] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2020] [Accepted: 01/30/2020] [Indexed: 12/22/2022] Open
Abstract
Core-fucosylation is an essential biological modification by which a fucose is transferred from GDP-β-L-fucose to the innermost N-acetylglucosamine residue of N-linked glycans. A single human enzyme α1,6-fucosyltransferase (FUT8) is the only enzyme responsible for this modification via the addition of an α-1,6-linked fucose to N-glycans. To date, the details of substrate recognition and catalysis by FUT8 remain unknown. Here, we report the crystal structure of FUT8 complexed with GDP and a biantennary complex N-glycan (G0), which provides insight into both substrate recognition and catalysis. FUT8 follows an SN2 mechanism and deploys a series of loops and an α-helix which all contribute in forming the binding site. An exosite, formed by one of these loops and an SH3 domain, is responsible for the recognition of branched sugars, making contacts specifically to the α1,3 arm GlcNAc, a feature required for catalysis. This information serves as a framework for inhibitor design, and helps to assess its potential as a therapeutic target.
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70
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Angioregulatory microRNAs in Colorectal Cancer. Cancers (Basel) 2019; 12:cancers12010071. [PMID: 31887997 PMCID: PMC7016698 DOI: 10.3390/cancers12010071] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Revised: 12/21/2019] [Accepted: 12/23/2019] [Indexed: 12/14/2022] Open
Abstract
Colorectal cancer (CRC) is one of the leading causes of cancer mortality. Angiogenesis is a rate-determining step in CRC development and metastasis. The balance of angiogenic and antiangiogenic factors is crucial in this process. Angiogenesis-related genes can be regulated post-transcriptionally by microRNAs (miRNAs) and some miRNAs have been shown to shuttle between tumor cells and the tumor microenvironment (TME). MiRNAs have context-dependent actions and can promote or suppress angiogenesis dependent on the type of cancer. On the one hand, miRNAs downregulate anti-angiogenic targets and lead to angiogenesis induction. Tumor suppressor miRNAs, on the other hand, enhance anti-angiogenic response by targeting pro-angiogenic factors. Understanding the interaction between these miRNAs and their target mRNAs will help to unravel molecular mechanisms involved in CRC progression. The aim of this article is to review the current literature on angioregulatory miRNAs in CRC.
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