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Shih PC, Chen HP, Hsu CC, Lin CH, Ko CY, Hsueh CW, Huang CY, Chu TH, Wu CC, Ho YC, Nguyen NUN, Huang SC, Fang CC, Tzou SJ, Wu YJ, Chen TY, Chang CF, Lee YK. Long-term DEHP/MEHP exposure promotes colorectal cancer stemness associated with glycosylation alterations. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 327:121476. [PMID: 36997141 DOI: 10.1016/j.envpol.2023.121476] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 03/17/2023] [Accepted: 03/19/2023] [Indexed: 06/19/2023]
Abstract
Plasticizers are considered as environmental pollution released from medical devices and increased potential oncogenic risks in clinical therapy. Our previous studies have shown that long-term exposure to di-ethylhexyl phthalate (DEHP)/mono-ethylhexyl phthalate (MEHP) promotes chemotherapeutic drug resistance in colorectal cancer. In this study, we investigated the alteration of glycosylation in colorectal cancer following long-term plasticizers exposure. First, we determined the profiles of cell surface N-glycomes by using mass spectrometry and found out the alterations of α2,8-linkages glycans. Next, we analyzed the correlation between serum DEHP/MEHP levels and ST8SIA6 expression from matched tissues in total 110 colorectal cancer patients. Moreover, clinical specimens and TCGA database were used to analyze the expression of ST8SIA6 in advanced stage of cancer. Finally, we showed that ST8SIA6 regulated stemness in vitro and in vivo. Our results revealed long-term DEHP/MEHP exposure significantly caused cancer patients with poorer survival outcome and attenuated the expression of ST8SIA6 in cancer cells and tissue samples. As expected, silencing of ST8SIA6 promoted cancer stemness and tumorigenicity by upregulating stemness-associated proteins. In addition, the cell viability assay showed enhanced drug resistance in ST8SIA6 silencing cells treated with irinotecan. Besides, ST8SIA6 was downregulated in the advanced stage and positively correlated with tumor recurrence in colorectal cancer. Our results imply that ST8SIA6 potentially plays an important role in oncogenic effects with long-term phthalates exposure.
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Affiliation(s)
- Pei-Chun Shih
- Institute of Basic Medical Science, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan; Department of Medical Laboratory Science and Biotechnology, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan
| | - Hsin-Pao Chen
- Division of Colon and Rectal Surgery, Department of Surgery, E-DA Hospital, I-Shou University, Kaohsiung 82445, Taiwan; School of Medicine, College of Medicine, I-Shou University, Kaohsiung 82445, Taiwan
| | - Ching-Cheng Hsu
- Institute of Basic Medical Science, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan; Department of Medical Laboratory Science and Biotechnology, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan; Department of Internal Medicine, Division of Cardiology, The University of Texas Southwestern Medical Center, Dallas TX 75390, USA
| | - Chung-Hsien Lin
- Institute of Basic Medical Science, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan; Department of Medical Laboratory Science and Biotechnology, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan
| | - Chou-Yuan Ko
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Kaohsiung Armed Forces General Hospital, Kaohsiung 80284, Taiwan; Institute of Medical Science and Technology, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
| | - Chao-Wen Hsueh
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Kaohsiung Armed Forces General Hospital, Kaohsiung 80284, Taiwan; Institute of Medical Science and Technology, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
| | - Cheng-Yi Huang
- Institute of Medical Science and Technology, National Sun Yat-sen University, Kaohsiung 80424, Taiwan; Department of Pathology, Kaohsiung Armed Forces General Hospital, Kaohsiung 80284, Taiwan
| | - Tian-Huei Chu
- Institute of Medical Science and Technology, National Sun Yat-sen University, Kaohsiung 80424, Taiwan; Medical Laboratory, Medical Education and Research Center, Kaohsiung Armed Forces General Hospital, Kaohsiung 80284, Taiwan
| | - Cheng-Chun Wu
- School of Medicine, College of Medicine, I-Shou University, Kaohsiung 82445, Taiwan
| | - Yu-Cheng Ho
- School of Medicine, College of Medicine, I-Shou University, Kaohsiung 82445, Taiwan
| | - Ngoc Uyen Nhi Nguyen
- Department of Internal Medicine, Division of Cardiology, The University of Texas Southwestern Medical Center, Dallas TX 75390, USA
| | - Shih-Chung Huang
- Institute of Medical Science and Technology, National Sun Yat-sen University, Kaohsiung 80424, Taiwan; Division of Cardiology, Department of Medicine, Kaohsiung Armed Forces General Hospital, Kaohsiung 80284, Taiwan; Medical Laboratory, Medical Education and Research Center, Kaohsiung Armed Forces General Hospital, Kaohsiung 80284, Taiwan
| | | | - Shiow-Jyu Tzou
- Institute of Medical Science and Technology, National Sun Yat-sen University, Kaohsiung 80424, Taiwan; Department of Nursing, Kaohsiung Armed Forces General Hospital, Kaohsiung 80284, Taiwan; Medical Laboratory, Medical Education and Research Center, Kaohsiung Armed Forces General Hospital, Kaohsiung 80284, Taiwan
| | - Yueh-Jung Wu
- Division of Colorectal Surgery, Department of Surgery, Kaohsiung Armed Forces General Hospital, Kaohsiung 80284, Taiwan
| | - Tung-Yuan Chen
- Division of Colorectal Surgery, Department of Surgery, Kaohsiung Armed Forces General Hospital, Kaohsiung 80284, Taiwan
| | - Chuan-Fa Chang
- Institute of Basic Medical Science, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan; Department of Medical Laboratory Science and Biotechnology, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan
| | - Yung-Kuo Lee
- Institute of Medical Science and Technology, National Sun Yat-sen University, Kaohsiung 80424, Taiwan; Medical Laboratory, Medical Education and Research Center, Kaohsiung Armed Forces General Hospital, Kaohsiung 80284, Taiwan.
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Huang Q, Chen C, Chen W, Cai C, Xing H, Li J, Li M, Ma S. Cell type- and region-specific translatomes in an MPTP mouse model of Parkinson's disease. Neurobiol Dis 2023; 180:106105. [PMID: 36977454 DOI: 10.1016/j.nbd.2023.106105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 03/16/2023] [Accepted: 03/24/2023] [Indexed: 03/28/2023] Open
Abstract
Parkinson's disease (PD) is the most common neurodegenerative movement disorder, characterized by the progressive loss of nigrostriatal dopaminergic neurons (DANs), involving the dysregulation of both neurons and glial cells. Cell type- and region-specific gene expression profiles can provide an effective source for revealing the mechanisms of PD. In this study, we adopted the RiboTag approach to obtain cell type (DAN, microglia, astrocytes)- and brain region (substantia nigra, caudate-putamen)-specific translatomes at an early stage in an MPTP-induced mouse model of PD. Through DAN-specific translatome analysis, the glycosphingolipid biosynthetic process was identified as a significantly downregulated pathway in the MPTP-treated mice. ST8Sia6, a key downregulated gene related to glycosphingolipid biosynthesis, was confirmed to be downregulated in nigral DANs from postmortem brains of patients with PD. Specific expression of ST8Sia6 in DANs exerts anti-inflammatory and neuroprotective effects in MPTP-treated mice. Through cell type (microglia vs. astrocyte) and brain region (substantia nigra vs. caudate-putamen) comparisons, nigral microglia showed the most intense immune responses. Microglia and astrocytes in the substantia nigra showed similar levels of activation in interferon-related pathways and interferon gamma (IFNG) was identified as the top upstream regulator in both cell types. This work highlights that the glycosphingolipid metabolism pathway in the DAN is involved in neuroinflammation and neurodegeneration in an MPTP mouse model of PD and provides a new data source for elucidating the pathogenesis of PD.
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Matsumura T, Totani H, Gunji Y, Fukuda M, Yokomori R, Deng J, Rethnam M, Yang C, Tan TK, Karasawa T, Kario K, Takahashi M, Osato M, Sanda T, Suda T. A Myb enhancer-guided analysis of basophil and mast cell differentiation. Nat Commun 2022; 13:7064. [PMID: 36400777 PMCID: PMC9674656 DOI: 10.1038/s41467-022-34906-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Accepted: 11/10/2022] [Indexed: 11/19/2022] Open
Abstract
The transcription factor MYB is a crucial regulator of hematopoietic stem and progenitor cells. However, the nature of lineage-specific enhancer usage of the Myb gene is largely unknown. We identify the Myb -68 enhancer, a regulatory element which marks basophils and mast cells. Using the Myb -68 enhancer activity, we show a population of granulocyte-macrophage progenitors with higher potential to differentiate into basophils and mast cells. Single cell RNA-seq demonstrates the differentiation trajectory is continuous from progenitors to mature basophils in vivo, characterizes bone marrow cells with a gene signature of mast cells, and identifies LILRB4 as a surface marker of basophil maturation. Together, our study leads to a better understanding of how MYB expression is regulated in a lineage-associated manner, and also shows how a combination of lineage-related reporter mice and single-cell transcriptomics can overcome the rarity of target cells and enhance our understanding of gene expression programs that control cell differentiation in vivo.
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Affiliation(s)
- Takayoshi Matsumura
- grid.4280.e0000 0001 2180 6431Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore ,grid.410804.90000000123090000Division of Inflammation Research, Center for Molecular Medicine, Jichi Medical University, Tochigi, Japan ,grid.410804.90000000123090000Division of Cardiovascular Medicine, Department of Medicine, Jichi Medical University School of Medicine, Tochigi, Japan
| | - Haruhito Totani
- grid.4280.e0000 0001 2180 6431Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore
| | - Yoshitaka Gunji
- grid.410804.90000000123090000Division of Inflammation Research, Center for Molecular Medicine, Jichi Medical University, Tochigi, Japan
| | - Masahiro Fukuda
- grid.428397.30000 0004 0385 0924Signature Program in Neuroscience and Behavioral Disorders, Duke-NUS Medical School, Singapore, Singapore ,grid.274841.c0000 0001 0660 6749International Research Center for Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Rui Yokomori
- grid.4280.e0000 0001 2180 6431Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore
| | - Jianwen Deng
- grid.4280.e0000 0001 2180 6431Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore
| | - Malini Rethnam
- grid.4280.e0000 0001 2180 6431Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore
| | - Chong Yang
- grid.4280.e0000 0001 2180 6431Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore
| | - Tze King Tan
- grid.4280.e0000 0001 2180 6431Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore
| | - Tadayoshi Karasawa
- grid.410804.90000000123090000Division of Inflammation Research, Center for Molecular Medicine, Jichi Medical University, Tochigi, Japan
| | - Kazuomi Kario
- grid.410804.90000000123090000Division of Cardiovascular Medicine, Department of Medicine, Jichi Medical University School of Medicine, Tochigi, Japan
| | - Masafumi Takahashi
- grid.410804.90000000123090000Division of Inflammation Research, Center for Molecular Medicine, Jichi Medical University, Tochigi, Japan
| | - Motomi Osato
- grid.4280.e0000 0001 2180 6431Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore
| | - Takaomi Sanda
- grid.4280.e0000 0001 2180 6431Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore ,grid.4280.e0000 0001 2180 6431Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Toshio Suda
- grid.4280.e0000 0001 2180 6431Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore ,grid.274841.c0000 0001 0660 6749International Research Center for Medical Sciences, Kumamoto University, Kumamoto, Japan ,grid.4280.e0000 0001 2180 6431Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
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Li L, Chen Y, Sluter MN, Hou R, Hao J, Wu Y, Chen GY, Yu Y, Jiang J. Ablation of Siglec-E augments brain inflammation and ischemic injury. J Neuroinflammation 2022; 19:191. [PMID: 35858866 PMCID: PMC9301848 DOI: 10.1186/s12974-022-02556-1] [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: 04/15/2022] [Accepted: 07/14/2022] [Indexed: 11/10/2022] Open
Abstract
Sialic acid immunoglobulin-like lectin E (Siglec-E) is a subtype of pattern recognition receptors found on the surface of myeloid cells and functions as a key immunosuppressive checkpoint molecule. The engagement between Siglec-E and the ligand α2,8-linked disialyl glycans activates the immunoreceptor tyrosine-based inhibitory motif (ITIM) in its intracellular domain, mitigating the potential risk of autoimmunity amid innate immune attacks on parasites, bacteria, and carcinoma. Recent studies suggest that Siglec-E is also expressed in the CNS, particularly microglia, the brain-resident immune cells. However, the functions of Siglec-E in brain inflammation and injuries under many neurological conditions largely remain elusive. In this study, we first revealed an anti-inflammatory role for Siglec-E in lipopolysaccharide (LPS)-triggered microglial activation. We then found that Siglec-E was induced within the brain by systemic treatment with LPS in mice in a dose-dependent manner, while its ablation exacerbated hippocampal reactive microgliosis in LPS-treated animals. The genetic deficiency of Siglec-E also aggravated oxygen-glucose deprivation (OGD)-induced neuronal death in mouse primary cortical cultures containing both neurons and glial cells. Moreover, Siglec-E expression in ipsilateral brain tissues was substantially induced following middle cerebral artery occlusion (MCAO). Lastly, the neurological deficits and brain infarcts were augmented in Siglec-E knockout mice after moderate MCAO when compared to wild-type animals. Collectively, our findings suggest that the endogenous inducible Siglec-E plays crucial anti-inflammatory and neuroprotective roles following ischemic stroke, and thus might underlie an intrinsic mechanism of resolution of inflammation and self-repair in the brain.
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Affiliation(s)
- Lexiao Li
- Department of Pharmaceutical Sciences, Drug Discovery Center, College of Pharmacy, University of Tennessee Health Science Center, Memphis, TN, USA
| | - Yu Chen
- Department of Pharmaceutical Sciences, Drug Discovery Center, College of Pharmacy, University of Tennessee Health Science Center, Memphis, TN, USA
| | - Madison N Sluter
- Department of Pharmaceutical Sciences, Drug Discovery Center, College of Pharmacy, University of Tennessee Health Science Center, Memphis, TN, USA
| | - Ruida Hou
- Department of Pharmaceutical Sciences, Drug Discovery Center, College of Pharmacy, University of Tennessee Health Science Center, Memphis, TN, USA
| | - Jiukuan Hao
- Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, TX, USA
| | - Yin Wu
- Children's Foundation Research Institute at Le Bonheur Children's Hospital, Department of Pediatrics, College of Medicine, University of Tennessee Health Science Center, Memphis, TN, USA
| | - Guo-Yun Chen
- Children's Foundation Research Institute at Le Bonheur Children's Hospital, Department of Pediatrics, College of Medicine, University of Tennessee Health Science Center, Memphis, TN, USA
| | - Ying Yu
- Department of Pharmaceutical Sciences, Drug Discovery Center, College of Pharmacy, University of Tennessee Health Science Center, Memphis, TN, USA
| | - Jianxiong Jiang
- Department of Pharmaceutical Sciences, Drug Discovery Center, College of Pharmacy, University of Tennessee Health Science Center, Memphis, TN, USA.
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Friedman DJ, Kizerwetter M, Belmonte P, Rajcula M, Theodore K, Kim Lee HS, Shapiro MJ, Dong H, Shapiro VS. Cutting Edge: Enhanced Antitumor Immunity in ST8Sia6 Knockout Mice. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2022; 208:1845-1850. [PMID: 35379746 PMCID: PMC9012686 DOI: 10.4049/jimmunol.2101165] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Accepted: 02/15/2022] [Indexed: 12/14/2022]
Abstract
Inhibitory receptors have a critical role in the regulation of immunity. Siglecs are a family of primarily inhibitory receptors expressed by immune cells that recognize specific sialic acid modifications on cell surface glycans. Many tumors have increased sialic acid incorporation. Overexpression of the sialyltransferase ST8Sia6 on tumors led to altered immune responses and increased tumor growth. In this study, we examined the role of ST8Sia6 on immune cells in regulating antitumor immunity. ST8Sia6 knockout mice had an enhanced immune response to tumors. The loss of ST8Sia6 promoted an enhanced intratumoral activation of macrophages and dendritic cells, including upregulation of CD40. Intratumoral regulatory T cells exhibited a more inflammatory phenotype in ST8Sia6 knockout mice. Using adoptive transfer studies, the change in regulatory T cell phenotype was not cell intrinsic and depended on the loss of ST8Sia6 expression in APCs. Thus, ST8Sia6 generates ligands for Siglecs that dampen antitumor immunity.
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Affiliation(s)
| | | | - Paul Belmonte
- Department of Immunology, Mayo Clinic; Rochester, MN, 55905, USA
| | - Matthew Rajcula
- Department of Immunology, Mayo Clinic; Rochester, MN, 55905, USA
| | - Keith Theodore
- Department of Immunology, Mayo Clinic; Rochester, MN, 55905, USA
| | - Hyun Se Kim Lee
- Department of Immunology, Mayo Clinic; Rochester, MN, 55905, USA
| | | | - Haidong Dong
- Department of Immunology, Mayo Clinic; Rochester, MN, 55905, USA,Department of Urology, College of Medicine, Mayo Clinic; Rochester, MN, 55905, USA
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Ko CY, Chu TH, Hsu CC, Chen HP, Huang SC, Chang CL, Tzou SJ, Chen TY, Lin CC, Shih PC, Lin CH, Chang CF, Lee YK. Bioinformatics Analyses Identify the Therapeutic Potential of ST8SIA6 for Colon Cancer. J Pers Med 2022; 12:jpm12030401. [PMID: 35330401 PMCID: PMC8953768 DOI: 10.3390/jpm12030401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 02/27/2022] [Accepted: 03/03/2022] [Indexed: 02/04/2023] Open
Abstract
Sialylation of glycoproteins is modified by distinct sialyltransferases such as ST3Gal, ST6Gal, ST6GalNAc, or ST8SIA with α2,3-, α2,6-, or α2,8-linkages. Alteration of these sialyltransferases causing aberrant sialylation is associated with the progression of colon cancer. However, among the ST8- sialyltransferases, the role of ST8SIA6 in colon cancer remains poorly understood. In this study, we explored the involvement of ST8SIA6 in colon cancer using multiple gene databases. The relationship between ST8SIA6 expression and tumor stages/grades was investigated by UALCAN analysis, and Kaplan–Meier Plotter analysis was used to analyze the expression of ST8SIA6 on the survival outcome of colon cancer patients. Moreover, the biological functions of ST8SIA6 in colon cancer were explored using LinkedOmics and cancer cell metabolism gene DB. Finally, TIMER and TISMO analyses were used to delineate ST8SIA6 levels in tumor immunity and immunotherapy responses, respectively. ST8SIA6 downregulation was associated with an advanced stage and poorly differentiated grade; however, ST8SIA6 expression did not affect the survival outcomes in patients with colon cancer. Gene ontology analysis suggested that ST8SIA6 participates in cell surface adhesion, angiogenesis, and membrane vesicle trafficking. In addition, ST8SIA6 levels affected immunocyte infiltration and immunotherapy responses in colon cancer. Collectively, these results suggest that ST8SIA6 may serve as a novel therapeutic target towards personalized medicine for colon cancer.
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Affiliation(s)
- Chou-Yuan Ko
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Kaohsiung Armed Forces General Hospital, Kaohsiung 80284, Taiwan;
- Institute of Medical Science and Technology, National Sun Yat-sen University, Kaohsiung 80424, Taiwan; (S.-C.H.); (C.-L.C.); (S.-J.T.)
| | - Tian-Huei Chu
- Medical Laboratory, Medical Education and Research Center, Kaohsiung Armed Forces General Hospital, Kaohsiung 80284, Taiwan;
| | - Ching-Cheng Hsu
- Department of Internal Medicine, Division of Cardiology, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA;
- Institute of Basic Medical Science, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan; (P.-C.S.); (C.-H.L.)
| | - Hsin-Pao Chen
- Department of Surgery, E-DA Hospital, I-Shou University, Kaohsiung 82445, Taiwan;
| | - Shih-Chung Huang
- Institute of Medical Science and Technology, National Sun Yat-sen University, Kaohsiung 80424, Taiwan; (S.-C.H.); (C.-L.C.); (S.-J.T.)
- Medical Laboratory, Medical Education and Research Center, Kaohsiung Armed Forces General Hospital, Kaohsiung 80284, Taiwan;
- Division of Cardiology, Department of Medicine, Kaohsiung Armed Forces General Hospital, Kaohsiung 80284, Taiwan
| | - Chen-Lin Chang
- Institute of Medical Science and Technology, National Sun Yat-sen University, Kaohsiung 80424, Taiwan; (S.-C.H.); (C.-L.C.); (S.-J.T.)
- Medical Laboratory, Medical Education and Research Center, Kaohsiung Armed Forces General Hospital, Kaohsiung 80284, Taiwan;
- Department of Psychiatry, Kaohsiung Armed Forces General Hospital, Kaohsiung 80284, Taiwan
| | - Shiow-Jyu Tzou
- Institute of Medical Science and Technology, National Sun Yat-sen University, Kaohsiung 80424, Taiwan; (S.-C.H.); (C.-L.C.); (S.-J.T.)
- Medical Laboratory, Medical Education and Research Center, Kaohsiung Armed Forces General Hospital, Kaohsiung 80284, Taiwan;
- Department of Nursing, Kaohsiung Armed Forces General Hospital, Kaohsiung 80284, Taiwan
| | - Tung-Yuan Chen
- Division of Colorectal Surgery, Department of Surgery, Kaohsiung Armed Forces General Hospital, Kaohsiung 80284, Taiwan;
| | - Chia-Chen Lin
- Clinical Pathology Department, Chi Mei Medical Center, Tainan 71004, Taiwan;
- Department of Medical Laboratory Science and Biotechnology, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan
| | - Pei-Chun Shih
- Institute of Basic Medical Science, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan; (P.-C.S.); (C.-H.L.)
| | - Chung-Hsien Lin
- Institute of Basic Medical Science, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan; (P.-C.S.); (C.-H.L.)
| | - Chuan-Fa Chang
- Institute of Basic Medical Science, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan; (P.-C.S.); (C.-H.L.)
- Department of Medical Laboratory Science and Biotechnology, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan
- Correspondence: (C.-F.C.); (Y.-K.L.); Tel.: +886-6-235-3535 (ext. 5796) (C.-F.C.); +886-7-749-6751 (ext. 726201) (Y.-K.L.)
| | - Yung-Kuo Lee
- Medical Laboratory, Medical Education and Research Center, Kaohsiung Armed Forces General Hospital, Kaohsiung 80284, Taiwan;
- Correspondence: (C.-F.C.); (Y.-K.L.); Tel.: +886-6-235-3535 (ext. 5796) (C.-F.C.); +886-7-749-6751 (ext. 726201) (Y.-K.L.)
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Hugonnet M, Singh P, Haas Q, von Gunten S. The Distinct Roles of Sialyltransferases in Cancer Biology and Onco-Immunology. Front Immunol 2021; 12:799861. [PMID: 34975914 PMCID: PMC8718907 DOI: 10.3389/fimmu.2021.799861] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Accepted: 12/02/2021] [Indexed: 12/24/2022] Open
Abstract
Aberrant glycosylation is a key feature of malignant transformation. Hypersialylation, the enhanced expression of sialic acid-terminated glycoconjugates on the cell surface, has been linked to immune evasion and metastatic spread, eventually by interaction with sialoglycan-binding lectins, including Siglecs and selectins. The biosynthesis of tumor-associated sialoglycans involves sialyltransferases, which are differentially expressed in cancer cells. In this review article, we provide an overview of the twenty human sialyltransferases and their roles in cancer biology and immunity. A better understanding of the individual contribution of select sialyltransferases to the tumor sialome may lead to more personalized strategies for the treatment of cancer.
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Affiliation(s)
- Marjolaine Hugonnet
- Institute of Pharmacology, University of Bern, Bern, Switzerland
- Bern Center for Precision Medicine (BCPM), University of Bern, Bern, Switzerland
| | - Pushpita Singh
- Institute of Pharmacology, University of Bern, Bern, Switzerland
| | - Quentin Haas
- Institute of Pharmacology, University of Bern, Bern, Switzerland
| | - Stephan von Gunten
- Institute of Pharmacology, University of Bern, Bern, Switzerland
- Bern Center for Precision Medicine (BCPM), University of Bern, Bern, Switzerland
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Friedman DJ, Crotts SB, Shapiro MJ, Rajcula M, McCue S, Liu X, Khazaie K, Dong H, Shapiro VS. ST8Sia6 Promotes Tumor Growth in Mice by Inhibiting Immune Responses. Cancer Immunol Res 2021; 9:952-966. [PMID: 34074677 PMCID: PMC8338779 DOI: 10.1158/2326-6066.cir-20-0834] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Revised: 03/05/2021] [Accepted: 05/26/2021] [Indexed: 01/27/2023]
Abstract
Many tumors exhibit increased incorporation of sialic acids into cell-surface glycans, which impact the tumor microenvironment. Sialic acid immunoglobulin-like lectins (Siglec) are receptors that recognize sialic acids and modulate immune responses, including responses to tumors. However, the roles of individual sialyltransferases in tumorigenesis and tumor growth are not well understood. Here, we examined the sialyltransferase ST8Sia6, which generated α2,8-linked disialic acids that bind to murine Siglec-E and human Siglec-7 and -9. Increased ST8Sia6 expression was found on many human tumors and associated with decreased survival in several cancers, including colon cancer. Because of this, we engineered MC38 and B16-F10 tumor lines to express ST8Sia6. ST8Sia6-expressing MC38 and B16-F10 tumors exhibited faster growth and led to decreased survival, which required host Siglec-E. ST8Sia6 expression on tumors also altered macrophage polarization toward M2, including upregulation of the immune modulator arginase, which also required Siglec-E. ST8Sia6 also accelerated tumorigenesis in a genetically engineered, spontaneous murine model of colon cancer, decreasing survival from approximately 6 months to 67 days. Thus, ST8Sia6 expression on tumors inhibits antitumor immune responses to accelerate tumor growth.
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Affiliation(s)
| | | | | | | | - Shaylene McCue
- Department of Immunology, Mayo Clinic, Rochester, Minnesota
| | - Xin Liu
- Department of Immunology, Mayo Clinic, Rochester, Minnesota
| | | | - Haidong Dong
- Department of Immunology, Mayo Clinic, Rochester, Minnesota
- Department of Urology, College of Medicine, Mayo Clinic, Rochester, Minnesota
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