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Han M, Zhu H, Chen X, Luo X. 6-O-endosulfatases in tumor metastasis: heparan sulfate proteoglycans modification and potential therapeutic targets. Am J Cancer Res 2024; 14:897-916. [PMID: 38455409 PMCID: PMC10915330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Accepted: 02/22/2024] [Indexed: 03/09/2024] Open
Abstract
Metastasis is the leading cause of cancer-associated mortality. Although advances in the targeted treatment and immunotherapy have improved the management of some cancers, the prognosis of metastatic cancers remains unsatisfied. Therefore, the specific mechanisms in tumor metastasis need further investigation. 6-O-endosulfatases (SULFs), comprising sulfatase1 (SULF1) and sulfatase 2 (SULF2), play pivotal roles in the post-synthetic modifications of heparan sulfate proteoglycans (HSPGs). Consequently, these extracellular enzymes can regulate a variety of downstream pathways by modulating HSPGs function. During the past decades, researchers have detected the expression of SULF1 and SULF2 in most cancers and revealed their roles in tumor progression and metastasis. Herein we reviewed the metastasis steps which SULFs participated in, elucidated the specific roles and mechanisms of SULFs in metastasis process, and discussed the effects of SULFs in different types of cancers. Moreover, we summarized the role of targeting SULFs in combination therapy to treat metastatic cancers, which provided some novel strategies for cancer therapy.
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Affiliation(s)
- Mengzhen Han
- Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and TechnologyWuhan 430030, Hubei, China
- Hubei Key Laboratory of Hepato-Pancreato-Biliary DiseasesWuhan 430030, Hubei, China
| | - He Zhu
- Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and TechnologyWuhan 430030, Hubei, China
- Hubei Key Laboratory of Hepato-Pancreato-Biliary DiseasesWuhan 430030, Hubei, China
| | - Xiaoping Chen
- Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and TechnologyWuhan 430030, Hubei, China
- Hubei Key Laboratory of Hepato-Pancreato-Biliary DiseasesWuhan 430030, Hubei, China
| | - Xin Luo
- Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and TechnologyWuhan 430030, Hubei, China
- Hubei Key Laboratory of Hepato-Pancreato-Biliary DiseasesWuhan 430030, Hubei, China
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2
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Zhang W, Yang F, Zheng Z, Li C, Mao S, Wu Y, Wang R, Zhang J, Zhang Y, Wang H, Li W, Huang J, Yao X. Sulfatase 2 Affects Polarization of M2 Macrophages through the IL-8/JAK2/STAT3 Pathway in Bladder Cancer. Cancers (Basel) 2022; 15:cancers15010131. [PMID: 36612128 PMCID: PMC9818157 DOI: 10.3390/cancers15010131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 12/13/2022] [Accepted: 12/22/2022] [Indexed: 12/28/2022] Open
Abstract
Sulfatase 2 (SULF2) affects the occurrence and development of cancer by regulating HSPG-binding factors. However, the mechanism of SULF2 in bladder cancer (BCa) is unknown. To determine this, we analyzed the RNA sequencing of 90 patients with BCa. The results showed that the expression of SULF2 was closely related to the prognosis of BCa. Moreover, in vivo and in vitro experiments revealed that SULF2 promotes tumor proliferation and invasion. Furthermore, using a mouse orthotopic BCa model and flow cytometric analysis, we identified that SULF2 affects the polarization of macrophages. Mechanism studies clarified that SULF2 promoted the release of HSPG-binding factors, such as IL-8, in the microenvironment through β-catenin. Meanwhile, IL-8 activated the JAK2/STAT3 pathway of macrophages to promote the expression of CD163 and CD206, thereby regulating the polarization of macrophages to the M2-type. Conclusively, these results indicate that SULF2 plays an important role in regulating the microenvironment of BCa and promotes the polarization of macrophages to the M2-type by secreting IL-8, which further deepens the malignant progression of BCa.
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Affiliation(s)
- Wentao Zhang
- Department of Urology, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai 200070, China
- Urologic Cancer Institute, School of Medicine, Tongji University, Shanghai 200070, China
| | - Fuhan Yang
- Department of Urology, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai 200070, China
- Urologic Cancer Institute, School of Medicine, Tongji University, Shanghai 200070, China
| | - Zongtai Zheng
- Department of Urology, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai 200070, China
- Urologic Cancer Institute, School of Medicine, Tongji University, Shanghai 200070, China
| | - Cheng Li
- Department of Urology, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai 200070, China
- Urologic Cancer Institute, School of Medicine, Tongji University, Shanghai 200070, China
| | - Shiyu Mao
- Department of Urology, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai 200070, China
- Urologic Cancer Institute, School of Medicine, Tongji University, Shanghai 200070, China
| | - Yuan Wu
- Department of Urology, Hefei Cancer Hospital, Chinese Academy of Sciences, Hefei 230031, China
| | - Ruiliang Wang
- Department of Urology, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai 200070, China
- Urologic Cancer Institute, School of Medicine, Tongji University, Shanghai 200070, China
| | - Junfeng Zhang
- Department of Urology, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai 200070, China
- Urologic Cancer Institute, School of Medicine, Tongji University, Shanghai 200070, China
| | - Yue Zhang
- Department of Central Laboratory, Clinical Medicine Scientific and Technical Innovation Park, Shanghai Tenth People’s Hospital, Shanghai 200435, China
| | - Hong Wang
- Department of Urology, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai 200070, China
- Urologic Cancer Institute, School of Medicine, Tongji University, Shanghai 200070, China
| | - Wei Li
- Department of Urology, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai 200070, China
- Urologic Cancer Institute, School of Medicine, Tongji University, Shanghai 200070, China
| | - Jianhua Huang
- Department of Urology, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai 200070, China
- Urologic Cancer Institute, School of Medicine, Tongji University, Shanghai 200070, China
- Correspondence: (J.H.); (X.Y.)
| | - Xudong Yao
- Department of Urology, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai 200070, China
- Urologic Cancer Institute, School of Medicine, Tongji University, Shanghai 200070, China
- Correspondence: (J.H.); (X.Y.)
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Yang Y, Ahn J, Edwards NJ, Benicky J, Rozeboom AM, Davidson B, Karamboulas C, Nixon KCJ, Ailles L, Goldman R. Extracellular Heparan 6- O-Endosulfatases SULF1 and SULF2 in Head and Neck Squamous Cell Carcinoma and Other Malignancies. Cancers (Basel) 2022; 14:cancers14225553. [PMID: 36428645 PMCID: PMC9688903 DOI: 10.3390/cancers14225553] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 11/05/2022] [Accepted: 11/09/2022] [Indexed: 11/16/2022] Open
Abstract
Pan-cancer analysis of TCGA and CPTAC (proteomics) data shows that SULF1 and SULF2 are oncogenic in a number of human malignancies and associated with poor survival outcomes. Our studies document a consistent upregulation of SULF1 and SULF2 in HNSC which is associated with poor survival outcomes. These heparan sulfate editing enzymes were considered largely functional redundant but single-cell RNAseq (scRNAseq) shows that SULF1 is secreted by cancer-associated fibroblasts in contrast to the SULF2 derived from tumor cells. Our RNAScope and patient-derived xenograft (PDX) analysis of the HNSC tissues fully confirm the stromal source of SULF1 and explain the uniform impact of this enzyme on the biology of multiple malignancies. In summary, SULF2 expression increases in multiple malignancies but less consistently than SULF1, which uniformly increases in the tumor tissues and negatively impacts survival in several types of cancer even though its expression in cancer cells is low. This paradigm is common to multiple malignancies and suggests a potential for diagnostic and therapeutic targeting of the heparan sulfatases in cancer diseases.
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Affiliation(s)
- Yang Yang
- Department of Biochemistry and Molecular & Cell Biology, Georgetown University, Washington, DC 20057, USA
| | - Jaeil Ahn
- Department of Biostatistics, Bioinformatics and Biomathematics, Georgetown University, Washington, DC 20057, USA
| | - Nathan J. Edwards
- Department of Biochemistry and Molecular & Cell Biology, Georgetown University, Washington, DC 20057, USA
- Clinical and Translational Glycoscience Research Center, Georgetown University, Washington, DC 20057, USA
| | - Julius Benicky
- Clinical and Translational Glycoscience Research Center, Georgetown University, Washington, DC 20057, USA
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC 20057, USA
| | - Aaron M. Rozeboom
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC 20057, USA
| | - Bruce Davidson
- Department of Otolaryngology-Head and Neck Surgery, MedStar Georgetown University Hospital, Washington, DC 20057, USA
| | - Christina Karamboulas
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON M5G 2C1, Canada
| | - Kevin C. J. Nixon
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON M5G 2C1, Canada
| | - Laurie Ailles
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON M5G 2C1, Canada
- Department of Medical Biophysics, University of Toronto, Toronto, ON M5G 1L7, Canada
| | - Radoslav Goldman
- Department of Biochemistry and Molecular & Cell Biology, Georgetown University, Washington, DC 20057, USA
- Clinical and Translational Glycoscience Research Center, Georgetown University, Washington, DC 20057, USA
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC 20057, USA
- Correspondence: ; Tel.: +1-202-687-9868
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Nakamura I, Asumda FZ, Moser CD, Kang YNN, Lai JP, Roberts LR. Sulfatase-2 Regulates Liver Fibrosis through the TGF-β Signaling Pathway. Cancers (Basel) 2021; 13:5279. [PMID: 34771445 DOI: 10.3390/cancers13215279] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 09/07/2021] [Accepted: 09/26/2021] [Indexed: 02/05/2023] Open
Abstract
Transforming growth factor-β (TGF-β) activates hepatic stellate cells (HSCs), which drive liver fibrosis via the production and deposition of extracellular matrix (ECM). We aimed to elucidate the mechanistic role of sulfatase-2 (SULF2) in liver fibrosis. To this end, we induced liver fibrosis in wild-type (WT) and SULF2 knockout (Sulf2-KO) mice (6-8 weeks-old) via bile duct ligation (BDL), intraperitoneal injection of carbon tetrachloride (CCl4) or thioacetamide (TAA). The levels of fibrosis in the liver sections were assessed via Sirius red and Masson's trichrome staining, immunohistochemistry and immunoblotting for α-smooth muscle actin (α-SMA) and hydroxyproline. To evaluate the interaction between TGF-β and SULF2, we transfected human HSCs with scrambled control shRNA and shRNA constructs targeting SULF2 and measured α-SMA expression following treatment with TGF-β1 ligand. We show here that knockout of SULF2 significantly decreases collagen content, as well as bands of bridging fibrosis, as demonstrated by Sirius red, Masson's trichrome and α-SMA staining after BDL, CCl4 and TAA injection in Sulf2-KO versus WT mice. In all three models of liver fibrosis, we observed significantly lower levels of hydroxyproline in the Sulf2-KO mice compared to the WT mice. HSCs with reduced levels of SULF2 failed to significantly express α-SMA and collagen type I following treatment with TGF-β1. Furthermore, SULF2 co-localizes with TGFBR3 and the in vitro knockdown of SULF2 in HSCs decreases the release of TGF-β1 from TGFBR3. Together, these data suggest that SULF2 regulates liver fibrosis via the TGF-β signaling pathway. Pharmacologic inhibition of SULF2 may represent a novel therapeutic approach to improve liver fibrosis.
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Wade A, Engler JR, Tran VM, Phillips JJ. Measuring Sulfatase Expression and Invasion in Glioblastoma. Methods Mol Biol 2022; 2303:415-25. [PMID: 34626397 DOI: 10.1007/978-1-0716-1398-6_33] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2023]
Abstract
Extracellular sulfatases (SULF1 and SULF2) selectively remove 6-O-sulfate groups (6OS) from heparan sulfate proteoglycans (HSPGs) and by this process control important interactions of HSPGs with extracellular factors including morphogens, growth factors, and extracellular matrix (ECM) components. The expression of SULF1 and SULF2 is dynamically regulated during development and is altered in pathological states such as glioblastoma (GBM), a highly malignant and highly invasive brain cancer. SULF2 protein is increased in an important subset of human GBM and it helps regulate receptor tyrosine kinase (RTK) signaling and tumor growth in a murine model of the disease. By altering ligand binding to HSPGs SULF2 has the potential to modify the extracellular availability of factors important in a number of cell processes including proliferation, chemotaxis, and migration. Diffuse invasion of malignant tumor cells into surrounding healthy brain is a characteristic feature of GBM that makes therapy challenging. Here, we describe methods to assess SULF2 expression in human tumor tissue and cell lines and how to relate this to tumor cell invasion.
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Dallinga MG, Habani YI, Schimmel AWM, Dallinga-Thie GM, van Noorden CJF, Klaassen I, Schlingemann RO. The Role of Heparan Sulfate and Neuropilin 2 in VEGFA Signaling in Human Endothelial Tip Cells and Non-Tip Cells during Angiogenesis In Vitro. Cells 2021; 10:cells10040926. [PMID: 33923753 PMCID: PMC8073389 DOI: 10.3390/cells10040926] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 04/01/2021] [Accepted: 04/13/2021] [Indexed: 12/17/2022] Open
Abstract
During angiogenesis, vascular endothelial growth factor A (VEGFA) regulates endothelial cell (EC) survival, tip cell formation, and stalk cell proliferation via VEGF receptor 2 (VEGFR2). VEGFR2 can interact with VEGFR2 co-receptors such as heparan sulfate proteoglycans (HSPGs) and neuropilin 2 (NRP2), but the exact roles of these co-receptors, or of sulfatase 2 (SULF2), an enzyme that removes sulfate groups from HSPGs and inhibits HSPG-mediated uptake of very low density lipoprotein (VLDL), in angiogenesis and tip cell biology are unknown. In the present study, we investigated whether the modulation of binding of VEGFA to VEGFR2 by knockdown of SULF2 or NRP2 affects sprouting angiogenesis, tip cell formation, proliferation of non-tip cells, and EC survival, or uptake of VLDL. To this end, we employed VEGFA splice variant 121, which lacks an HSPG binding domain, and VEGFA splice variant 165, which does have this domain, in in vitro models of angiogenic tip cells and vascular sprouting. We conclude that VEGFA165 and VEGFA121 have similar inducing effects on tip cells and sprouting in vitro, and that the binding of VEGFA165 to HSPGs in the extracellular matrix does not seem to play a role, as knockdown of SULF2 did not alter these effects. Co-binding of NRP2 appears to regulate VEGFA–VEGFR2-induced sprout initiation, but not tip cell formation. Finally, as the addition of VLDL increased sprout formation but not tip cell formation, and as VLDL uptake was limited to non-tip cells, our findings suggest that VLDL plays a role in sprout formation by providing biomass for stalk cell proliferation.
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Affiliation(s)
- Marchien G. Dallinga
- Ocular Angiogenesis Group, Departments of Ophthalmology and Medical Biology, Amsterdam Cardiovascular Sciences, Cancer Center Amsterdam, Amsterdam UMC, University of Amsterdam, Meibergdreef 15, 1105 AZ Amsterdam, The Netherlands; (M.G.D.); (Y.I.H.); (C.J.F.v.N.); (R.O.S.)
| | - Yasmin I. Habani
- Ocular Angiogenesis Group, Departments of Ophthalmology and Medical Biology, Amsterdam Cardiovascular Sciences, Cancer Center Amsterdam, Amsterdam UMC, University of Amsterdam, Meibergdreef 15, 1105 AZ Amsterdam, The Netherlands; (M.G.D.); (Y.I.H.); (C.J.F.v.N.); (R.O.S.)
| | - Alinda W. M. Schimmel
- Department of Experimental Vascular Medicine, Amsterdam UMC, University of Amsterdam, Meibergdreef 15, 1105 AZ Amsterdam, The Netherlands; (A.W.M.S.); (G.M.D.-T.)
| | - Geesje M. Dallinga-Thie
- Department of Experimental Vascular Medicine, Amsterdam UMC, University of Amsterdam, Meibergdreef 15, 1105 AZ Amsterdam, The Netherlands; (A.W.M.S.); (G.M.D.-T.)
| | - Cornelis J. F. van Noorden
- Ocular Angiogenesis Group, Departments of Ophthalmology and Medical Biology, Amsterdam Cardiovascular Sciences, Cancer Center Amsterdam, Amsterdam UMC, University of Amsterdam, Meibergdreef 15, 1105 AZ Amsterdam, The Netherlands; (M.G.D.); (Y.I.H.); (C.J.F.v.N.); (R.O.S.)
- Department of Genetic Toxicology and Cancer Biology, National Institute of Biology, Večna pot 111, 1000 Ljubljana, Slovenia
| | - Ingeborg Klaassen
- Ocular Angiogenesis Group, Departments of Ophthalmology and Medical Biology, Amsterdam Cardiovascular Sciences, Cancer Center Amsterdam, Amsterdam UMC, University of Amsterdam, Meibergdreef 15, 1105 AZ Amsterdam, The Netherlands; (M.G.D.); (Y.I.H.); (C.J.F.v.N.); (R.O.S.)
- Correspondence:
| | - Reinier O. Schlingemann
- Ocular Angiogenesis Group, Departments of Ophthalmology and Medical Biology, Amsterdam Cardiovascular Sciences, Cancer Center Amsterdam, Amsterdam UMC, University of Amsterdam, Meibergdreef 15, 1105 AZ Amsterdam, The Netherlands; (M.G.D.); (Y.I.H.); (C.J.F.v.N.); (R.O.S.)
- Department of Ophthalmology, University of Lausanne, Jules Gonin Eye Hospital, Fondation Asile des Aveugles, Avenue de France 15, 1004 Lausanne, Switzerland
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Yang Y, Ahn J, Raghunathan R, Kallakury BV, Davidson B, Kennedy ZB, Zaia J, Goldman R. Expression of the Extracellular Sulfatase SULF2 Affects Survival of Head and Neck Squamous Cell Carcinoma Patients. Front Oncol 2021; 10:582827. [PMID: 33585200 PMCID: PMC7873738 DOI: 10.3389/fonc.2020.582827] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Accepted: 11/24/2020] [Indexed: 12/21/2022] Open
Abstract
Sulfation of heparan sulfate proteoglycans (HSPG) regulates signaling of growth factor receptors via specific interactions with the sulfate groups. 6-O-Sulfation of HSPG is an impactful modification regulated by the activities of dedicated extracellular endosulfatases. Specifically, extracellular sulfatase Sulf-2 (SULF2) removes 6-O-sulfate from HS chains, modulates affinity of carrier HSPG to their ligands, and thereby influences activity of the downstream signaling pathway. In this study, we explored the effect of SULF2 expression on HSPG sulfation and its relationship to clinical outcomes of patients with head and neck squamous cell carcinoma (HNSCC). We found a significant overexpression of SULF2 in HNSCC tumor tissues which differs by tumor location and etiology. Expression of SULF2 mRNA in tumors associated with human papillomavirus (HPV) infection was two-fold lower than in tumors associated with a history of tobacco and alcohol consumption. High SULF2 mRNA expression is significantly correlated with poor progression-free interval and overall survival of patients (n = 499). Among all HS-related enzymes, SULF2 expression had the highest hazard ratio in overall survival after adjusting for clinical characteristics. SULF2 protein expression (n = 124), determined by immunohistochemical analysis, showed a similar trend. The content of 6-O-sulfated HSPG, measured by staining with the HS3A8 antibody, was higher in adjacent mucosa compared to tumor tissue but revealed no difference based on SULF2 staining. LC-MS/MS analysis showed low abundance of N-sulfation and O-sulfation in HS but no significant difference between SULF2-positive and SULF2-negative tumors. Levels of enzymes modifying 6-O-sulfation, measured by RT-qPCR in HNSCC tumor tissues, suggest that HSPG sulfation is carried out by the co-regulated activities of multiple genes. Imbalance of the HS modifying enzymes in HNSCC tumors modifies the overall sulfation pattern, but the alteration of 6-O-sulfate is likely non-uniform and occurs in specific domains of the HS chains. These findings demonstrate that SULF2 expression correlates with survival of HNSCC patients and could potentially serve as a prognostic factor or target of therapeutic interventions.
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Affiliation(s)
- Yang Yang
- Department of Biochemistry and Molecular & Cellular Biology, Georgetown University, Washington, DC, United States
| | - Jaeil Ahn
- Department of Biostatistics, Bioinformatics, and Biomathematics, Georgetown University, Washington, DC, United States
| | - Rekha Raghunathan
- Department of Biochemistry, Center for Biomedical Mass Spectrometry, Boston University School of Medicine, Boston, MA, United States
| | - Bhaskar V Kallakury
- Department of Pathology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC, United States
| | - Bruce Davidson
- Department of Otolaryngology-Head and Neck Surgery, Medstar Georgetown University Hospital, Washington, DC, United States
| | - Zuzana Brnakova Kennedy
- Department of Oncology and Clinical and Translational Glycoscience Research Center, Georgetown University, Washington, DC, United States
| | - Joseph Zaia
- Department of Biochemistry, Center for Biomedical Mass Spectrometry, Boston University School of Medicine, Boston, MA, United States
| | - Radoslav Goldman
- Department of Biochemistry and Molecular & Cellular Biology, Georgetown University, Washington, DC, United States.,Department of Oncology and Clinical and Translational Glycoscience Research Center, Georgetown University, Washington, DC, United States
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Sherif IO, Al-Mutabagani LA, Sabry D, Elsherbiny NM. Antineoplastic Activity of Chrysin against Human Hepatocellular Carcinoma: New Insight on GPC3/ SULF2 Axis and lncRNA-AF085935 Expression. Int J Mol Sci 2020; 21:E7642. [PMID: 33076548 DOI: 10.3390/ijms21207642] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2020] [Revised: 10/06/2020] [Accepted: 10/13/2020] [Indexed: 12/17/2022] Open
Abstract
The natural flavonoid chrysin possesses antiproliferative activity against various types of cancers, including hepatocellular carcinoma (HCC), which is a common malignancy. However, the exact mechanism of chrysin antiproliferative activity remains unclear. This research was executed to explore the impact of chrysin on glypican-3 (GPC3)/sulfatase-2 (SULF2) axis and lncRNA-AF085935 expression in HCC using HepG2 cells. Cisplatin (20, 50, 100 μg/mL), chrysin (15, 30, and 60 μg/mL) and the combination of 50 μg/mL cisplatin with different concentrations of chrysin were applied for 24/48 h. Cell viability was determined by MTT assay. Protein levels of GPC3 and SULF2 were measured by ELISA at 24/48 h. GPC3 immunoreactivity was detected by immunocytochemistry. Moreover, GPC3 and SULF2 mRNA expressions in addition to lncRNA-AF085935 expression were assessed by qPCR at 48 h. The GPC3 protein, immunostaining and mRNA levels, SULF2 protein and mRNA levels, as well as lncRNA-AF085935 expression, were decreased significantly with cisplatin and chrysin alone when compared with the control untreated HepG2 cells. However, the combination treatment exhibited a better chemopreventive effect in a dose- and time-dependent manner. This study demonstrated, for the first time, the antiproliferative activity of chrysin against HCC through the suppression of the GPC3/SULF2 axis along with the downregulation of lncRNA-AF085935 expression. Synergistic effect of chrysin with cisplatin could potentiate their antiproliferative action in a dose- and time-dependent manner.
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Kim TH, Banini BA, Asumda FZ, Campbell NA, Hu C, Moser CD, Shire AM, Han S, Ma C, Krishnan A, Mounajjed T, White TA, Gores GJ, LeBrasseur NK, Charlton MR, Roberts LR. Knockout of sulfatase 2 is associated with decreased steatohepatitis and fibrosis in a mouse model of nonalcoholic fatty liver disease. Am J Physiol Gastrointest Liver Physiol 2020; 319:G333-G344. [PMID: 32683952 PMCID: PMC7509257 DOI: 10.1152/ajpgi.00150.2019] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Sulfatase 2 (SULF2) is a heparan sulfate editing enzyme that regulates the milieu of growth factors and cytokines involved in a variety of cellular processes. We used a murine model of diet-induced steatohepatitis to assess the effect of SULF2 downregulation on the development of nonalcoholic steatohepatitis (NASH) and liver fibrosis. Wild-type B6;129 mice (WT) and Sulf2-knockout B6;129P2-SULF2Gt(PST111)Byg mice (Sulf2-KO) were fed a fast-food diet (FFD) rich in saturated fats, cholesterol, and fructose or a standard chow diet (SC) ad libitum for 9 mo. WT mice on FFD showed a threefold increase in hepatic Sulf2 mRNA expression, and a 2.2-fold increase in hepatic SULF2 protein expression compared with WT mice on SC. Knockout of Sulf2 led to a significant decrease in diet-mediated weight gain and dyslipidemia compared with WT mice on FFD. Knockout of Sulf2 also abrogated diet-induced steatohepatitis and hepatic fibrosis compared with WT mice on FFD. Furthermore, expression levels of the profibrogenic receptors TGFβR2 and PDGFRβ were significantly decreased in Sulf2-KO mice compared with WT mice on FFD. Together, our data suggest that knockout of Sulf2 significantly downregulates dyslipidemia, steatohepatitis, and hepatic fibrosis in a diet-induced mouse model of NAFLD, suggesting that targeting of SULF2 signaling may be a potential therapeutic mechanism in NASH.NEW & NOTEWORTHY We report for the first time that in wild-type (WT) mice, fast-food diet (FFD) induced a threefold increase in hepatic Sulf2 mRNA and a 2.2-fold increase in sulfatase 2 (SULF2) protein expression compared with WT mice on standard chow diet (SC). We showed that knockout of SULF2 ameliorates FFD-induced obesity, hyperlipidemia, steatohepatitis, and fibrosis. These data, along with work from other laboratories, suggest that SULF2 may be critical to the ability of the liver to progress to nonalcoholic steatohepatitis and fibrosis in conditions of overnutrition.
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Affiliation(s)
- Tae Hyo Kim
- 1Division of Gastroenterology and Hepatology, Mayo Clinic College of Medicine and Science, and Mayo Clinic Cancer Center, Rochester, Minnesota,2Department of Internal Medicine, Gyeongsang National University School of Medicine, Jinju, South Korea
| | - Bubu A. Banini
- 1Division of Gastroenterology and Hepatology, Mayo Clinic College of Medicine and Science, and Mayo Clinic Cancer Center, Rochester, Minnesota
| | - Faizal Z. Asumda
- 3Department of Molecular Pharmacology and Experimental Therapeutics, Mayo Clinic College of Medicine and Science, Rochester, Minnesota
| | - Nellie A. Campbell
- 1Division of Gastroenterology and Hepatology, Mayo Clinic College of Medicine and Science, and Mayo Clinic Cancer Center, Rochester, Minnesota
| | - Chunling Hu
- 1Division of Gastroenterology and Hepatology, Mayo Clinic College of Medicine and Science, and Mayo Clinic Cancer Center, Rochester, Minnesota
| | - Catherine D. Moser
- 1Division of Gastroenterology and Hepatology, Mayo Clinic College of Medicine and Science, and Mayo Clinic Cancer Center, Rochester, Minnesota
| | - Abdirashid M. Shire
- 1Division of Gastroenterology and Hepatology, Mayo Clinic College of Medicine and Science, and Mayo Clinic Cancer Center, Rochester, Minnesota
| | - Shaoshan Han
- 1Division of Gastroenterology and Hepatology, Mayo Clinic College of Medicine and Science, and Mayo Clinic Cancer Center, Rochester, Minnesota
| | - Chenchao Ma
- 1Division of Gastroenterology and Hepatology, Mayo Clinic College of Medicine and Science, and Mayo Clinic Cancer Center, Rochester, Minnesota
| | - Anuradha Krishnan
- 1Division of Gastroenterology and Hepatology, Mayo Clinic College of Medicine and Science, and Mayo Clinic Cancer Center, Rochester, Minnesota
| | - Taofic Mounajjed
- 4Division of Anatomic Pathology, Mayo Clinic College of Medicine and Science, and Mayo Clinic Cancer Center, Rochester, Minnesota
| | - Thomas A. White
- 5Robert & Arlene Kogod Center on Aging, Mayo Clinic College of Medicine and Science, Rochester, Minnesota
| | - Gregory J. Gores
- 1Division of Gastroenterology and Hepatology, Mayo Clinic College of Medicine and Science, and Mayo Clinic Cancer Center, Rochester, Minnesota
| | - Nathan K. LeBrasseur
- 4Division of Anatomic Pathology, Mayo Clinic College of Medicine and Science, and Mayo Clinic Cancer Center, Rochester, Minnesota
| | - Michael R. Charlton
- 1Division of Gastroenterology and Hepatology, Mayo Clinic College of Medicine and Science, and Mayo Clinic Cancer Center, Rochester, Minnesota
| | - Lewis Rowland Roberts
- 1Division of Gastroenterology and Hepatology, Mayo Clinic College of Medicine and Science, and Mayo Clinic Cancer Center, Rochester, Minnesota
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10
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Carr RM, Romecin Duran PA, Tolosa EJ, Ma C, Oseini AM, Moser CD, Banini BA, Huang J, Asumda F, Dhanasekaran R, Graham RP, Toruner MD, Safgren SL, Almada LL, Wang S, Patnaik MM, Roberts LR, Fernandez-Zapico ME. The extracellular sulfatase SULF2 promotes liver tumorigenesis by stimulating assembly of a promoter-looping GLI1-STAT3 transcriptional complex. J Biol Chem 2020; 295:2698-2712. [PMID: 31988246 DOI: 10.1074/jbc.ra119.011146] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Revised: 01/11/2020] [Indexed: 12/15/2022] Open
Abstract
The expression of the extracellular sulfatase SULF2 has been associated with increased hepatocellular carcinoma (HCC) growth and poor patient survival. However, the molecular mechanisms underlying SULF2-associated tumor growth remain unclear. To address this gap, here we developed a transgenic mouse overexpressing Sulf2 in hepatocytes under the control of the transthyretin promoter. In this model, Sulf2 overexpression potentiated diethylnitrosamine-induced HCC. Further analysis indicated that the transcription factor GLI family zinc finger 1 (GLI1) mediates Sulf2 expression during HCC development. A cross of the Sulf2-overexpressing with Gli1-knockout mice revealed that Gli1 inactivation impairs SULF2-induced HCC. Transcriptomic analysis revealed that Sulf2 overexpression is associated with signal transducer and activator of transcription 3 (STAT3)-specific gene signatures. Interestingly, the Gli1 knockout abrogated SULF2-mediated induction of several STAT3 target genes, including suppressor of cytokine signaling 2/3 (Socs2/3); Pim-1 proto-oncogene, Ser/Thr kinase (Pim1); and Fms-related tyrosine kinase 4 (Flt4). Human orthologs were similarly regulated by SULF2, dependent on intact GLI1 and STAT3 functions in HCC cells. SULF2 overexpression promoted a GLI1-STAT3 interaction and increased GLI1 and STAT3 enrichment at the promoters of their target genes. Interestingly, the SULF2 overexpression resulted in GLI1 enrichment at select STAT3 consensus sites, and vice versa. siRNA-mediated STAT3 or GLI1 knockdown reduced promoter binding of GLI1 and STAT3, respectively. Finally, chromatin-capture PCR confirmed long-range co-regulation of SOCS2 and FLT3 through changes in promoter conformation. These findings define a mechanism whereby SULF2 drives HCC by stimulating formation of a GLI1-STAT3 transcriptional complex.
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Affiliation(s)
- Ryan M Carr
- Schulze Center for Novel Therapeutics, Mayo Clinic, Rochester, Minnesota 55902
| | | | - Ezequiel J Tolosa
- Schulze Center for Novel Therapeutics, Mayo Clinic, Rochester, Minnesota 55902
| | - Chenchao Ma
- Division of Gastroenterology and Hepatology, Mayo Clinic College of Medicine and Science, Rochester, Minnesota 55902
| | - Abdul M Oseini
- Division of Gastroenterology and Hepatology, Mayo Clinic College of Medicine and Science, Rochester, Minnesota 55902
| | - Catherine D Moser
- Division of Gastroenterology and Hepatology, Mayo Clinic College of Medicine and Science, Rochester, Minnesota 55902
| | - Bubu A Banini
- Division of Gastroenterology and Hepatology, Mayo Clinic College of Medicine and Science, Rochester, Minnesota 55902
| | - Jianbo Huang
- Division of Gastroenterology and Hepatology, Mayo Clinic College of Medicine and Science, Rochester, Minnesota 55902
| | - Faizal Asumda
- Division of Gastroenterology and Hepatology, Mayo Clinic College of Medicine and Science, Rochester, Minnesota 55902
| | - Renumathy Dhanasekaran
- Division of Gastroenterology and Hepatology, Mayo Clinic College of Medicine and Science, Rochester, Minnesota 55902
| | - Rondell P Graham
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota 55902
| | - Merih D Toruner
- Schulze Center for Novel Therapeutics, Mayo Clinic, Rochester, Minnesota 55902
| | - Stephanie L Safgren
- Schulze Center for Novel Therapeutics, Mayo Clinic, Rochester, Minnesota 55902
| | - Luciana L Almada
- Schulze Center for Novel Therapeutics, Mayo Clinic, Rochester, Minnesota 55902
| | - Shaoqing Wang
- Division of Gastroenterology and Hepatology, Mayo Clinic College of Medicine and Science, Rochester, Minnesota 55902
| | - Mrinal M Patnaik
- Division of Hematology, Department of Internal Medicine, Mayo Clinic, Rochester, Minnesota 55905
| | - Lewis R Roberts
- Division of Gastroenterology and Hepatology, Mayo Clinic College of Medicine and Science, Rochester, Minnesota 55902.
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11
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Huo W, Zhu XM, Pan XY, Du M, Sun Z, Li ZM. MicroRNA-527 inhibits TGF-β/SMAD induced epithelial-mesenchymal transition via downregulating SULF2 expression in non-small-cell lung cancer. Math Biosci Eng 2019; 16:4607-4621. [PMID: 31499680 DOI: 10.3934/mbe.2019231] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
OBJECTIVE To explore the potential mechanism which miR-527 targeting the heparan sulfate 6-O-endosulfatase (SULF2) regulates TGF-β/SMAD signaling pathway induced epithelial-mesenchymal transition (EMT) in non-small-cell lung cancer (NSCLC). METHODS 38 pairs of lung tumor biopsies and corresponding paracancerous biopsies were obtained from NSCLC patients with surgical resection, normal human bronchial epithelial BEAS-2B cells and five NSCLS cell lines were applied for our study. miR-527 and SULF2 expression were determined by qRT-PCR and immunohistochemistry. MiR-527 and SULF2 biological link were predicted by Targetscan.org and tested by dual luciferase. Cells proliferation and apoptosis were respectively detected by EDU staining and flow cytometry. Cells migration was examined by transwell and scratch-wound assay. Expression of proteins related to EMT and TGF-β/SMAD signaling pathway, such as E-cadherin, N-cadherin, p-Samd3 and p-Smad2, was detected by western blot. RESULTS miR-527 expression was decreased in lung tumor tissues and NSCLS cell lines, conversely, SULF2 expression was significantly increased. In addition, we found that miR-527 targeted 3'-untranslated regions (3'-UTR) of SULF2 and mediated its expression. Overexpression of miR-527 evidently suppressed NSCLC proliferation, invasion and EMT via TGF-β/SMAD signaling pathway. Moreover, the silence of SULF2 exhibited a similar effect. CONCLUSION miR-527 targeting SULF2 down-regulated SULF2 expression, concurrently, suppressed NSCLC epithelial-mesenchymal transition and invasion via inhibiting TGF-β/SMAD signaling pathway.
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Affiliation(s)
- Wei Huo
- Department of Medical Oncology, Dalian Municipal Central Hospital Affiliated of Dalian Medical University, Dalian 116033, China
| | - Xiao-Min Zhu
- Department of Medical Oncology, Dalian Municipal Central Hospital Affiliated of Dalian Medical University, Dalian 116033, China
| | - Xin-Yan Pan
- Department of Medical Oncology, Dalian Municipal Central Hospital Affiliated of Dalian Medical University, Dalian 116033, China
| | - Min Du
- Department of Medical Oncology, Dalian Municipal Central Hospital Affiliated of Dalian Medical University, Dalian 116033, China
| | - Zhuo Sun
- Department of Medical Oncology, Dalian Municipal Central Hospital Affiliated of Dalian Medical University, Dalian 116033, China
| | - Zhi-Min Li
- Department of Medical Oncology, Dalian Municipal Central Hospital Affiliated of Dalian Medical University, Dalian 116033, China
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12
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Jung CH, Ho JN, Park JK, Kim EM, Hwang SG, Um HD. Involvement of SULF2 in y-irradiation-induced invasion and resistance of cancer cells by inducing IL-6 expression. Oncotarget 2017; 7:16090-103. [PMID: 26895473 PMCID: PMC4941299 DOI: 10.18632/oncotarget.7449] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2015] [Accepted: 02/05/2016] [Indexed: 11/25/2022] Open
Abstract
Cancer cells that survive radiotherapy often display enhanced invasiveness and resistance to death stimuli. Previous findings have suggested that ionizing radiation (IR) induces such undesirable effects by stimulating the STAT3/Bcl-XL pathway. To identify novel cellular components that mediate these actions of IR, we irradiated lung cancer cells with sublethal doses of y-rays and screened for the induction of IR-responsive genes by microarray analysis. The genes encoding 2 extracellular proteins, SULF2 and IL-6, were found to be upregulated, and these results were confirmed by polymerase chain reactions and western blot analyses. Because the IR-mediated induction of SULF2 was a novel finding, we also confirmed the phenomenon in vivo using xenograft tumors in mice. Analyses of signaling processes revealed that IR induced SULF2 expression via p53, which then promoted IL-6 expression by stabilizing β-catenin, followed by stimulation of the STAT3/Bcl-XL pathway. Consistently, both SULF2 and IL-6 mediated IR-induced invasion and resistance to death stimuli. To investigate whether SULF2 contributes to IR-induced tumor metastasis, we irradiated tumors in mice with sublethal doses of IR. This treatment promoted the entry of tumor cells into the blood stream (intravasation), which was abolished by downregulating SULF2 expression in tumor cells. These results demonstrated that SULF2 can mediate the detrimental effects of IR in vivo. Therefore, SULF2 may be potentially used as a therapeutic and diagnostic target to predict and overcome the malignant effects of IR, particularly in tumors expressing p53 wild-type.
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Affiliation(s)
- Chan-Hun Jung
- Division of Radiation Cancer Biology, Korea Institute of Radiological & Medical Sciences, Seoul 01812, Korea
| | - Jin-Nyoung Ho
- Division of Radiation Cancer Biology, Korea Institute of Radiological & Medical Sciences, Seoul 01812, Korea.,Present address: Biomedical Research Institute, Department of Urology, Seoul National University Bundang Hospital, Seongnam 463-707, Korea
| | - Jong Kuk Park
- Division of Radiation Cancer Biology, Korea Institute of Radiological & Medical Sciences, Seoul 01812, Korea
| | - Eun Mi Kim
- Division of Radiation Cancer Biology, Korea Institute of Radiological & Medical Sciences, Seoul 01812, Korea
| | - Sang-Gu Hwang
- Division of Radiation Cancer Biology, Korea Institute of Radiological & Medical Sciences, Seoul 01812, Korea
| | - Hong-Duck Um
- Division of Radiation Cancer Biology, Korea Institute of Radiological & Medical Sciences, Seoul 01812, Korea
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13
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Roberts RO, Kang YN, Hu C, Moser CD, Wang S, Moore MJ, Graham RP, Lai JP, Petersen RC, Roberts LR. Decreased Expression of Sulfatase 2 in the Brains of Alzheimer's Disease Patients: Implications for Regulation of Neuronal Cell Signaling. J Alzheimers Dis Rep 2017; 1:115-124. [PMID: 30035253 PMCID: PMC6052874 DOI: 10.3233/adr-170028] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
Background: The human sulfatase 1 (SULF1) and sulfatase 2 (SULF2) genes modulate cell signaling and homeostasis in many tissues. Gene expression analyses have implicated SULF2 in disease pathogenesis, including Alzheimer’s disease (AD), but changes in brain SULF2 expression have not been directly established. Objective: To investigate the expression of SULF1 and SULF2 in brain tissues from AD cases and cognitively normal controls. Methods: Autopsy tissue from AD cases (n = 20) and age-and gender-matched cognitively normal controls (n = 20) were identified from the Mayo Clinic Alzheimer’s Disease Patient Registry neuropathology database. Tissue slides were stained for SULF1 and SULF2 protein expression in the hippocampus and frontal lobe and an expression score computed from the proportion of cells stained and the intensity of staining (range 0 [no expression] to 9 [marked expression]). Results: SULF2 expression was reduced in AD cases. Compared to cognitively normal controls, SULF2 expression in AD cases was significantly decreased in the hippocampal Cornu Ammonis (CA) (mean score of 6.5 in cases versus 8.3 in controls; p = 0.003), in the gray matter of the parahippocampal gyrus (5.6 in cases versus 7.6 in controls; p = 0.003), and in the frontal lobe gray matter (5.4 in cases versus 7.4 in controls; p = 0.002). There was no difference in SULF1 expression in the hippocampus or frontal lobe of AD cases and controls. As expected there were no differences in SULF1 or SULF2 expression in white matter in AD cases compared to cognitively normal controls. Conclusion: Decreased SULF2 in specific regions of the brain occurs in AD.
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Affiliation(s)
- Rosebud O Roberts
- Department of Health Sciences Research, Mayo Clinic, Rochester, MN, USA.,Department of Neurology, Mayo Clinic, Rochester, MN, USA
| | - Yoo Na Kang
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN, USA.,Department of Pathology, Keimyung University, Daegu, South Korea
| | - Chunling Hu
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN, USA
| | - Catherine D Moser
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN, USA
| | - Shaoqing Wang
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN, USA
| | - Michael J Moore
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN, USA
| | - Rondell P Graham
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | - Jin-Ping Lai
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN, USA
| | - Ronald C Petersen
- Department of Health Sciences Research, Mayo Clinic, Rochester, MN, USA.,Department of Neurology, Mayo Clinic, Rochester, MN, USA
| | - Lewis R Roberts
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN, USA
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14
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Singer MS, Phillips JJ, Lemjabbar-Alaoui H, Wang YQ, Wu J, Goldman R, Rosen SD. SULF2, a heparan sulfate endosulfatase, is present in the blood of healthy individuals and increases in cirrhosis. Clin Chim Acta 2014; 440:72-8. [PMID: 25444749 DOI: 10.1016/j.cca.2014.10.038] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2014] [Revised: 10/18/2014] [Accepted: 10/27/2014] [Indexed: 12/15/2022]
Abstract
BACKGROUND SULF2 is an extracellular sulfatase that acts on heparan sulfate proteoglycans and modulates multiple signaling pathways. It is normally bound to the cell surface but can be released into the medium of cultured cells. SULF2 is known to be increased in cirrhotic liver compared to healthy liver. We asked whether SULF2 protein was present in the blood of healthy controls and increased in patients with liver cirrhosis. METHODS We devised a sandwich ELISA for SULF2 using 2 novel monoclonal antibodies (mAbs) and measured its levels in sera of normal individuals and cirrhosis patients. RESULTS SULF2 was higher in cirrhosis patients (1460 ± 1160 pg/ml, N=34) than in healthy individuals (728 ± 400 pg/ml, N=37). SULF2 levels increased with age in both healthy and patient groups. CONCLUSIONS SULF2 may be a useful serologic biomarker for liver cirrhosis.
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Affiliation(s)
- Mark S Singer
- Department of Anatomy, University of California, San Francisco, CA 94143, United States
| | - Joanna J Phillips
- Department of Neurological Surgery and Pathology, University of California, San Francisco 94158, United States
| | | | - Yang Qing Wang
- Department of Anatomy, University of California, San Francisco, CA 94143, United States
| | - Jing Wu
- Department of Oncology, Georgetown University, Washington, D.C. 20057, United States
| | - Radoslav Goldman
- Department of Oncology, Georgetown University, Washington, D.C. 20057, United States
| | - Steven D Rosen
- Department of Anatomy, University of California, San Francisco, CA 94143, United States.
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15
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Gill RMS, Michael A, Westley L, Kocher HM, Murphy JI, Dhoot GK. SULF1/ SULF2 splice variants differentially regulate pancreatic tumour growth progression. Exp Cell Res 2014; 324:157-71. [PMID: 24726914 DOI: 10.1016/j.yexcr.2014.04.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2013] [Revised: 03/17/2014] [Accepted: 04/01/2014] [Indexed: 12/14/2022]
Abstract
This study highlights the highly dynamic nature of SULF1/SULF2 splice variants in different human pancreatic cancers that regulate the activities of multiple cell signalling pathways in development and disease. Most pancreatic tumours expressed variable levels of both SULF1 and SULF2 variants including some expression during inflammation and pancreatitis. Many ductal and centro-acinar cell-derived pancreatic tumours are known to evolve into lethal pancreatic ductal adenocarcinomas but the present study also detected different stages of such tumour progression in the same tissue biopsies of not only acinar cell origin but also islet cell-derived cancers. The examination of caerulein-induced pancreatic injury and tumorigenesis in a Kras-driven mouse model confirmed the activation and gradual increase of SULF1/SULF2 variants during pancreatitis and tumorigenesis but with reduced levels in Stat3 conditional knockout mice with reduced inflammation. The significance of differential spatial and temporal patterns of specific SULF1/SULF2 splice variant expression during cancer growth became further apparent from their differential stimulatory or inhibitory effects on growth factor activities, tumour growth and angiogenesis not only during in vitro but also in vivo growth thus providing possible novel therapeutic targets.
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Affiliation(s)
- Roop M S Gill
- Department of Comparative Biomedical Sciences, The Royal Veterinary College, University of London, Royal College Street, London NW1 OTU, UK
| | - Andreas Michael
- Department of Comparative Biomedical Sciences, The Royal Veterinary College, University of London, Royal College Street, London NW1 OTU, UK
| | - Leah Westley
- Department of Comparative Biomedical Sciences, The Royal Veterinary College, University of London, Royal College Street, London NW1 OTU, UK
| | - Hemant M Kocher
- Centre for Tumour Biology, Barts and the London School of Medicine and Dentistry, Queen Mary College, University of London, London EC1M 6BQ, UK
| | - Joshua I Murphy
- Department of Comparative Biomedical Sciences, The Royal Veterinary College, University of London, Royal College Street, London NW1 OTU, UK
| | - Gurtej K Dhoot
- Department of Comparative Biomedical Sciences, The Royal Veterinary College, University of London, Royal College Street, London NW1 OTU, UK.
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