1
|
Seffouh I, Bilong M, Przybylski C, El Omrani N, Poyer S, Lamour G, Clément MJ, Boustany RJ, Gout E, Gonnet F, Vivès RR, Daniel R. Structure and functional impact of glycosaminoglycan modification of HSulf-2 endosulfatase revealed by atomic force microscopy and mass spectrometry. Sci Rep 2023; 13:22263. [PMID: 38097644 PMCID: PMC10721642 DOI: 10.1038/s41598-023-49147-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2023] [Accepted: 12/05/2023] [Indexed: 12/17/2023] Open
Abstract
The human sulfatase HSulf-2 is one of only two known endosulfatases that play a decisive role in modulating the binding properties of heparan sulfate proteoglycans on the cell surface and in the extracellular matrix. Recently, HSulf-2 was shown to exhibit an unusual post-translational modification consisting of a sulfated glycosaminoglycan chain. This study describes the structural characterization of this glycosaminoglycan (GAG) and provides new data on its impact on the catalytic properties of HSulf-2. The unrevealed nature of this GAG chain is identified as a chondroitin/dermatan sulfate (CS/DS) mixed chain, as shown by mass spectrometry combined with NMR analysis. It consists primarily of 6-O and 4-O monosulfated disaccharide units, with a slight predominance of the 4-O-sulfation. Using atomic force microscopy, we show that this unique post-translational modification dramatically impacts the enzyme hydrodynamic volume. We identified human hyaluronidase-4 as a secreted hydrolase that can digest HSulf-2 GAG chain. We also showed that HSulf-2 is able to efficiently 6-O-desulfate antithrombin III binding pentasaccharide motif, and that this activity was enhanced upon removal of the GAG chain. Finally, we identified five N-glycosylation sites on the protein and showed that, although required, reduced N-glycosylation profiles were sufficient to sustain HSulf-2 integrity.
Collapse
Affiliation(s)
- Ilham Seffouh
- Université Paris-Saclay, Univ Evry, CY Cergy Paris Université, CNRS, LAMBE, 91025, Evry-Courcouronnes, France
| | - Mélanie Bilong
- Université Paris-Saclay, Univ Evry, CY Cergy Paris Université, CNRS, LAMBE, 91025, Evry-Courcouronnes, France
| | - Cédric Przybylski
- Université Paris-Saclay, Univ Evry, CY Cergy Paris Université, CNRS, LAMBE, 91025, Evry-Courcouronnes, France
| | - Nesrine El Omrani
- Université Paris-Saclay, Univ Evry, CY Cergy Paris Université, CNRS, LAMBE, 91025, Evry-Courcouronnes, France
| | - Salomé Poyer
- Université Paris-Saclay, Univ Evry, CY Cergy Paris Université, CNRS, LAMBE, 91025, Evry-Courcouronnes, France
| | - Guillaume Lamour
- Université Paris-Saclay, Univ Evry, CY Cergy Paris Université, CNRS, LAMBE, 91025, Evry-Courcouronnes, France
| | - Marie-Jeanne Clément
- Université Paris-Saclay, Univ Evry, INSERM, SABNP, 91025, Evry-Courcouronnes, France
| | | | - Evelyne Gout
- Univ. Grenoble Alpes, CNRS, CEA, IBS, Grenoble, France
| | - Florence Gonnet
- Université Paris-Saclay, Univ Evry, CY Cergy Paris Université, CNRS, LAMBE, 91025, Evry-Courcouronnes, France
| | | | - Régis Daniel
- Université Paris-Saclay, Univ Evry, CY Cergy Paris Université, CNRS, LAMBE, 91025, Evry-Courcouronnes, France.
| |
Collapse
|
2
|
Marmesin and Marmelosin Interact with the Heparan Sulfatase-2 Active Site: Potential Mechanism for Phytochemicals from Bael Fruit Extract as Antitumor Therapeutics. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2023; 2023:9982194. [PMID: 36644581 PMCID: PMC9836799 DOI: 10.1155/2023/9982194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 11/09/2022] [Accepted: 11/10/2022] [Indexed: 01/06/2023]
Abstract
Human heparan sulfatase-2 (HSULF-2) is an oncoprotein overexpressed in the surface of all types of tumor cells and its activity plays a critical role in cancer survival and progression. Our previous studies have shown that bael fruit extract, containing marmesin and marmelosin, inhibits the HSULF-2 activity and kills breast tumor cells, but the mechanism of these processes remains fairly known mainly because the HSULF-2's 3D structure is partially known. Herein, we aimed at providing an in silico molecular mechanism of the inhibition of human HSULF-2 by phytochemicals from bael fruit extract. Pharmacokinetic parameters of the main phytochemicals contained in the bael fruit extract, sequence-based 3D structure of human HSULF-2, and the interaction of bael fruit's phytochemicals with the enzyme active site was modeled, evaluated, and verified. Docking studies revealed marmesin and marmelosin as potential inhibitors with binding score -8.5 and -7.7 Kcal/mol; these results were validated using molecular dynamics simulations, which exhibited higher stability of the protein-ligand complexes. Taking together, with our earlier in vitro data, our computational analyses suggest that marmesin and marmelosin interact at the active site of HSULF-2 providing a potential mechanism for its inhibition and consequent antitumor activity by phytochemicals contained in the bael fruit extract.
Collapse
|
3
|
Oshima K, Han X, Ouyang Y, El Masri R, Yang Y, Haeger SM, McMurtry SA, Lane TC, Davizon-Castillo P, Zhang F, Yue X, Vivès RR, Linhardt RJ, Schmidt EP. Loss of endothelial sulfatase-1 after experimental sepsis attenuates subsequent pulmonary inflammatory responses. Am J Physiol Lung Cell Mol Physiol 2019; 317:L667-L677. [PMID: 31461325 DOI: 10.1152/ajplung.00175.2019] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
Sepsis patients are at increased risk for hospital-acquired pulmonary infections, potentially due to postseptic immunosuppression known as the compensatory anti-inflammatory response syndrome (CARS). CARS has been attributed to leukocyte dysfunction, with an unclear role for endothelial cells. The pulmonary circulation is lined by an endothelial glycocalyx, a heparan sulfate-rich layer essential to pulmonary homeostasis. Heparan sulfate degradation occurs early in sepsis, leading to lung injury. Endothelial synthesis of new heparan sulfates subsequently allows for glycocalyx reconstitution and endothelial recovery. We hypothesized that remodeling of the reconstituted endothelial glycocalyx, mediated by alterations in the endothelial machinery responsible for heparan sulfate synthesis, contributes to CARS. Seventy-two hours after experimental sepsis, coincident with glycocalyx reconstitution, mice demonstrated impaired neutrophil and protein influx in response to intratracheal lipopolysaccharide (LPS). The postseptic reconstituted glycocalyx was structurally remodeled, with enrichment of heparan sulfate disaccharides sulfated at the 6-O position of glucosamine. Increased 6-O-sulfation coincided with loss of endothelial sulfatase-1 (Sulf-1), an enzyme that specifically removes 6-O-sulfates from heparan sulfate. Intravenous administration of Sulf-1 to postseptic mice restored the pulmonary response to LPS, suggesting that loss of Sulf-1 was necessary for postseptic suppression of pulmonary inflammation. Endothelial-specific knockout mice demonstrated that loss of Sulf-1 was not sufficient to induce immunosuppression in non-septic mice. Knockdown of Sulf-1 in human pulmonary microvascular endothelial cells resulted in downregulation of the adhesion molecule ICAM-1. Taken together, our study indicates that loss of endothelial Sulf-1 is necessary for postseptic suppression of pulmonary inflammation, representing a novel endothelial contributor to CARS.
Collapse
Affiliation(s)
- Kaori Oshima
- Department of Medicine, University of Colorado Denver, Aurora, Colorado
| | - Xiaorui Han
- Department of Chemistry and Chemical Biology, Rensselaer Polytechnic Institute, Troy, New York
| | - Yilan Ouyang
- Department of Chemistry and Chemical Biology, Rensselaer Polytechnic Institute, Troy, New York
| | - Rana El Masri
- University of Grenoble Alpes, Centre national de la recherche scientifique, Le Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Institut de Biologie Structurale, Grenoble, France
| | - Yimu Yang
- Department of Medicine, University of Colorado Denver, Aurora, Colorado
| | - Sarah M Haeger
- Department of Medicine, University of Colorado Denver, Aurora, Colorado
| | - Sarah A McMurtry
- Department of Medicine, University of Colorado Denver, Aurora, Colorado
| | - Trevor C Lane
- Department of Medicine, University of Colorado Denver, Aurora, Colorado
| | - Pavel Davizon-Castillo
- Department of Pediatrics, University of Colorado Denver, Aurora, Colorado.,Hemophilia and Thrombosis Center, School of Medicine, University of Colorado, Aurora, Colorado
| | - Fuming Zhang
- Department of Chemical and Biological Engineering, Rensselaer Polytechnic Institute, Troy, New York
| | - Xinping Yue
- Department of Physiology School of Medicine, Louisiana State University Health Sciences Center, New Orleans, Louisiana
| | - Romain R Vivès
- University of Grenoble Alpes, Centre national de la recherche scientifique, Le Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Institut de Biologie Structurale, Grenoble, France
| | - Robert J Linhardt
- Department of Chemistry and Chemical Biology, Rensselaer Polytechnic Institute, Troy, New York.,Department of Chemical and Biological Engineering, Rensselaer Polytechnic Institute, Troy, New York.,Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, New York
| | - Eric P Schmidt
- Department of Medicine, University of Colorado Denver, Aurora, Colorado.,Department of Medicine, Denver Health Medical Center, Denver, Colorado
| |
Collapse
|