1
|
Immler R, Nussbaumer K, Doerner A, El Bounkari O, Huber S, Abisch J, Napoli M, Schmidt S, Margraf A, Pruenster M, Rohwedder I, Lange-Sperandio B, Mall MA, de Jong R, Ohnmacht C, Bernhagen J, Voehringer D, Marth JD, Frommhold D, Sperandio M. CCR3-dependent eosinophil recruitment is regulated by sialyltransferase ST3Gal-IV. Proc Natl Acad Sci U S A 2024; 121:e2319057121. [PMID: 38687790 PMCID: PMC11087806 DOI: 10.1073/pnas.2319057121] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Accepted: 04/03/2024] [Indexed: 05/02/2024] Open
Abstract
Eosinophil recruitment is a pathological hallmark of many allergic and helminthic diseases. Here, we investigated chemokine receptor CCR3-induced eosinophil recruitment in sialyltransferase St3gal4-/- mice. We found a marked decrease in eosinophil extravasation into CCL11-stimulated cremaster muscles and into the inflamed peritoneal cavity of St3gal4-/- mice. Ex vivo flow chamber assays uncovered reduced adhesion of St3gal4-/- compared to wild type eosinophils. Using flow cytometry, we show reduced binding of CCL11 to St3gal4-/- eosinophils. Further, we noted reduced binding of CCL11 to its chemokine receptor CCR3 isolated from St3gal4-/- eosinophils. This was accompanied by almost absent CCR3 internalization of CCL11-stimulated St3gal4-/- eosinophils. Applying an ovalbumin-induced allergic airway disease model, we found a dramatic reduction in eosinophil numbers in bronchoalveolar lavage fluid following intratracheal challenge with ovalbumin in St3gal4-deficient mice. Finally, we also investigated tissue-resident eosinophils under homeostatic conditions and found reduced resident eosinophil numbers in the thymus and adipose tissue in the absence of ST3Gal-IV. Taken together, our results demonstrate an important role of ST3Gal-IV in CCR3-induced eosinophil recruitment in vivo rendering this enzyme an attractive target in reducing unwanted eosinophil infiltration in various disorders including allergic diseases.
Collapse
Affiliation(s)
- Roland Immler
- Institute of Cardiovascular Physiology and Pathophysiology, Walter Brendel Center of Experimental Medicine, Ludwig-Maximilians-UniversitätMünchen, PLanegg-Martinsried82152, Germany
| | - Katrin Nussbaumer
- Institute of Cardiovascular Physiology and Pathophysiology, Walter Brendel Center of Experimental Medicine, Ludwig-Maximilians-UniversitätMünchen, PLanegg-Martinsried82152, Germany
| | - Axel Doerner
- Department of Neonatology, University of Heidelberg, Heidelberg69120, Germany
| | - Omar El Bounkari
- Division of Vascular Biology, Institute for Stroke and Dementia Research, Ludwig-Maximilians-Universität, München81377, Germany
| | - Silke Huber
- Institute of Immunology, Ludwig-Maximilians-Universität München, München80336, Germany
| | - Janine Abisch
- Institute of Cardiovascular Physiology and Pathophysiology, Walter Brendel Center of Experimental Medicine, Ludwig-Maximilians-UniversitätMünchen, PLanegg-Martinsried82152, Germany
| | - Matteo Napoli
- Institute of Cardiovascular Physiology and Pathophysiology, Walter Brendel Center of Experimental Medicine, Ludwig-Maximilians-UniversitätMünchen, PLanegg-Martinsried82152, Germany
| | - Sarah Schmidt
- Institute of Cardiovascular Physiology and Pathophysiology, Walter Brendel Center of Experimental Medicine, Ludwig-Maximilians-UniversitätMünchen, PLanegg-Martinsried82152, Germany
| | - Andreas Margraf
- Institute of Cardiovascular Physiology and Pathophysiology, Walter Brendel Center of Experimental Medicine, Ludwig-Maximilians-UniversitätMünchen, PLanegg-Martinsried82152, Germany
| | - Monika Pruenster
- Institute of Cardiovascular Physiology and Pathophysiology, Walter Brendel Center of Experimental Medicine, Ludwig-Maximilians-UniversitätMünchen, PLanegg-Martinsried82152, Germany
| | - Ina Rohwedder
- Institute of Cardiovascular Physiology and Pathophysiology, Walter Brendel Center of Experimental Medicine, Ludwig-Maximilians-UniversitätMünchen, PLanegg-Martinsried82152, Germany
| | - Baerbel Lange-Sperandio
- von Haunersches Kinderspital, Klinikum der Universität München, Ludwig-Maximilians-Universität, München80336, Germany
| | - Marcus A. Mall
- Department of Pediatric Respiratory Medicine, Immunology and Critical Care Medicine, Charité–Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität Berlin, Berlin13353, Germany
- Berlin Institute of Health at Charité–Universitätsmedizin Berlin, Berlin10117, Germany
- German Centre for Lung Research, Associated Partner Site, Berlin13353, Germany
| | - Renske de Jong
- Center of Allergy and Environment (ZAUM), Technical University and Helmholtz Center Munich, München80802, Germany
| | - Caspar Ohnmacht
- Center of Allergy and Environment (ZAUM), Technical University and Helmholtz Center Munich, München80802, Germany
| | - Juergen Bernhagen
- Division of Vascular Biology, Institute for Stroke and Dementia Research, Ludwig-Maximilians-Universität, München81377, Germany
- Munich Cluster for Systems Neurology, München81377, Germany
- Munich Heart Alliance, München80336, Germany
| | - David Voehringer
- Institute of Immunology, Ludwig-Maximilians-Universität München, München80336, Germany
- Department of Infection Biology, University of Erlangen, Erlangen91054, Germany
| | - Jamey D. Marth
- Sanford Burnham Prebys Medical Discovery Institute, Infectious and Inflammatory Diseases, San Diego, CA92037
| | - David Frommhold
- Institute of Cardiovascular Physiology and Pathophysiology, Walter Brendel Center of Experimental Medicine, Ludwig-Maximilians-UniversitätMünchen, PLanegg-Martinsried82152, Germany
- Children’s Hospital Memmingen, Memmingen87700, Germany
| | - Markus Sperandio
- Institute of Cardiovascular Physiology and Pathophysiology, Walter Brendel Center of Experimental Medicine, Ludwig-Maximilians-UniversitätMünchen, PLanegg-Martinsried82152, Germany
| |
Collapse
|
2
|
Yang WH, Aziz PV, Heithoff DM, Kim Y, Ko JY, Cho JW, Mahan MJ, Sperandio M, Marth JD. Innate mechanism of mucosal barrier erosion in the pathogenesis of acquired colitis. iScience 2023; 26:107883. [PMID: 37752945 PMCID: PMC10518488 DOI: 10.1016/j.isci.2023.107883] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Revised: 08/16/2023] [Accepted: 09/07/2023] [Indexed: 09/28/2023] Open
Abstract
The colonic mucosal barrier protects against infection, inflammation, and tissue ulceration. Composed primarily of Mucin-2, proteolytic erosion of this barrier is an invariant feature of colitis; however, the molecular mechanisms are not well understood. We have applied a recurrent food poisoning model of acquired inflammatory bowel disease using Salmonella enterica Typhimurium to investigate mucosal barrier erosion. Our findings reveal an innate Toll-like receptor 4-dependent mechanism activated by previous infection that induces Neu3 neuraminidase among colonic epithelial cells concurrent with increased Cathepsin-G protease secretion by Paneth cells. These anatomically separated host responses merge with the desialylation of nascent colonic Mucin-2 by Neu3 rendering the mucosal barrier susceptible to increased proteolytic breakdown by Cathepsin-G. Depletion of Cathepsin-G or Neu3 function using pharmacological inhibitors or genetic-null alleles protected against Mucin-2 proteolysis and barrier erosion and reduced the frequency and severity of colitis, revealing approaches to preserve and potentially restore the mucosal barrier.
Collapse
Affiliation(s)
- Won Ho Yang
- Sanford-Burnham-Prebys Medical Discovery Institute, Infectious and Inflammatory Diseases Center; La Jolla, CA 92037, USA
- Glycosylation Network Research Center and Department of Systems Biology, College of Life Science and Biotechnology, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Peter V. Aziz
- Sanford-Burnham-Prebys Medical Discovery Institute, Infectious and Inflammatory Diseases Center; La Jolla, CA 92037, USA
| | - Douglas M. Heithoff
- Department of Molecular, Cellular, and Developmental Biology, University of California, Santa Barbara, Santa Barbara, CA 93106, USA
| | - Yeolhoe Kim
- Glycosylation Network Research Center and Department of Systems Biology, College of Life Science and Biotechnology, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Jeong Yeon Ko
- Glycosylation Network Research Center and Department of Systems Biology, College of Life Science and Biotechnology, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Jin Won Cho
- Glycosylation Network Research Center and Department of Systems Biology, College of Life Science and Biotechnology, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Michael J. Mahan
- Department of Molecular, Cellular, and Developmental Biology, University of California, Santa Barbara, Santa Barbara, CA 93106, USA
| | - Markus Sperandio
- Walter Brendel Center for Experimental Medicine, Institute of Cardiovascular Physiology and Pathophysiology, Ludwig Maximilians University, Munich, Germany
| | - Jamey D. Marth
- Sanford-Burnham-Prebys Medical Discovery Institute, Infectious and Inflammatory Diseases Center; La Jolla, CA 92037, USA
| |
Collapse
|
3
|
Haslund-Gourley BS, Aziz PV, Heithoff DM, Restagno D, Fried JC, Ilse MB, Bäumges H, Mahan MJ, Lübke T, Marth JD. Establishment of blood glycosidase activities and their excursions in sepsis. PNAS Nexus 2022; 1:pgac113. [PMID: 35967980 PMCID: PMC9364217 DOI: 10.1093/pnasnexus/pgac113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Accepted: 07/05/2022] [Indexed: 02/05/2023]
Abstract
Glycosidases are hydrolytic enzymes studied principally in the context of intracellular catabolism within the lysosome. Therefore, glycosidase activities are classically measured in experimentally acidified assay conditions reflecting their low pH optima. However, glycosidases are also present in the bloodstream where they may retain sufficient activity to participate in the regulation of glycoprotein half-lives, proteostasis, and disease pathogenesis. We have, herein, established at physiological pH 7.4 in blood plasma and sera the normal ranges of four major glycosidase activities essential for blood glycoprotein remodeling in healthy mice and humans. These activities included β-galactosidase, β-N-acetylglucosaminidase, α-mannosidase, and α-fucosidase. We have identified their origins to include the mammalian genes Glb1, HexB, Man2a1, and Fuca1. In experimental sepsis, excursions of glycosidase activities occurred with differences in host responses to discrete bacterial pathogens. Among similar excursions in human sepsis, the elevation of β-galactosidase activity was a prognostic indicator of increased likelihood of patient death.
Collapse
Affiliation(s)
- Benjamin S Haslund-Gourley
- Sanford-Burnham-Prebys Medical Discovery Institute, Infectious and Inflammatory Diseases Center, La Jolla, CA 92037, USA
| | - Peter V Aziz
- Sanford-Burnham-Prebys Medical Discovery Institute, Infectious and Inflammatory Diseases Center, La Jolla, CA 92037, USA
| | - Douglas M Heithoff
- Department of Molecular, Cellular, and Developmental Biology, University of California Santa Barbara, CA 93106, USA
| | - Damien Restagno
- Sanford-Burnham-Prebys Medical Discovery Institute, Infectious and Inflammatory Diseases Center, La Jolla, CA 92037, USA
| | - Jeffrey C Fried
- Department of Pulmonary and Critical Care Medicine, Cottage Hospital of Santa Barbara, Santa Barbara, CA 93105, USA
| | - Mai-Britt Ilse
- Department of Chemistry, Biochemistry, Bielefeld University, D-33615, Germany
| | - Hannah Bäumges
- Department of Chemistry, Biochemistry, Bielefeld University, D-33615, Germany
| | - Michael J Mahan
- Department of Molecular, Cellular, and Developmental Biology, University of California Santa Barbara, CA 93106, USA
| | - Torben Lübke
- Department of Chemistry, Biochemistry, Bielefeld University, D-33615, Germany
| | - Jamey D Marth
- Sanford-Burnham-Prebys Medical Discovery Institute, Infectious and Inflammatory Diseases Center, La Jolla, CA 92037, USA
| |
Collapse
|
4
|
Heindel D, Chen S, Aziz PV, Chung JY, Marth JD, Mahal LK. Glycomic Analysis Reveals a Conserved Response to Bacterial Sepsis Induced by Different Bacterial Pathogens. ACS Infect Dis 2022; 8:1075-1085. [PMID: 35486714 PMCID: PMC9112329 DOI: 10.1021/acsinfecdis.2c00082] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Indexed: 12/15/2022]
Abstract
Sepsis is an extreme inflammatory response to infection that occurs in the bloodstream and causes damage throughout the body. Glycosylation is known to play a role in immunity and inflammation, but the role of glycans in sepsis is not well-defined. Herein, we profiled the serum glycomes of experimental mouse sepsis models to identify changes induced by 4 different clinical bacterial pathogens (Gram-positive: Streptococcus pneumoniae and Staphylococcus aureus, Gram-negative: Escherichia coli and Salmonella Typhimurium) using our lectin microarray technology. We observed global shifts in the blood sera glycome that were conserved across all four species, regardless of whether they were Gram positive or negative. Bisecting GlcNAc was decreased upon sepsis and a strong increase in core 1/3 O-glycans was observed. Lectin blot analysis revealed a high molecular weight protein induced in sepsis by all four bacteria as the major cause of the core 1/3 O-glycan shift. Analysis of this band by mass spectrometry identified interalpha-trypsin inhibitor heavy chains (ITIHs) and fibronectin, both of which are associated with human sepsis. Shifts in the glycosylation of these proteins were observed. Overall, our work points toward a common mechanism for bacterially induced sepsis, marked by conserved changes in the glycome.
Collapse
Affiliation(s)
- Daniel
W. Heindel
- Biomedical
Research Institute, Department of Chemistry, New York University, New York, New York 10003, United States
| | - Shuhui Chen
- Biomedical
Research Institute, Department of Chemistry, New York University, New York, New York 10003, United States
| | - Peter V. Aziz
- SBP
Medical Discovery Institute, La Jolla, California 92037, United States
| | - Jonathan Y. Chung
- Biomedical
Research Institute, Department of Chemistry, New York University, New York, New York 10003, United States
| | - Jamey D. Marth
- SBP
Medical Discovery Institute, La Jolla, California 92037, United States
| | - Lara K. Mahal
- Biomedical
Research Institute, Department of Chemistry, New York University, New York, New York 10003, United States
- Department
of Chemistry, University of Alberta, Edmonton, AB, T6G 2G2, Canada
| |
Collapse
|
5
|
Heithoff DM, Pimienta G, Mahan SP, Yang WH, Le DT, House JK, Marth JD, Smith JW, Mahan MJ. Coagulation factor protein abundance in the pre-septic state predicts coagulopathic activities that arise during late-stage murine sepsis. EBioMedicine 2022; 78:103965. [PMID: 35349828 PMCID: PMC8965145 DOI: 10.1016/j.ebiom.2022.103965] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [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: 11/23/2021] [Revised: 02/21/2022] [Accepted: 03/10/2022] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Although sepsis accounts for 1 in 5 deaths globally, few molecular therapies exist for this condition. The development of effective biomarkers and treatments for sepsis requires a more complete understanding of host responses and pathogenic mechanisms at early stages of disease to minimize host-driven pathology. METHODS An alternative to the current symptom-based approach used to diagnose sepsis is a precise assessment of blood proteomic changes during the onset and progression of Salmonella Typhimurium (ST) murine sepsis. FINDINGS A distinct pattern of coagulation factor protein abundance was identified in the pre-septic state- prior to overt disease symptoms or bacteremia- that was predictive of the dysregulation of fibrinolytic and anti-coagulant activities and resultant consumptive coagulopathy during ST murine sepsis. Moreover, the changes in protein abundance observed generally have the same directionality (increased or decreased abundance) reported for human sepsis. Significant overlap of ST coagulopathic activities was observed in Gram-negative Escherichia coli- but not in Gram-positive staphylococcal or pneumococcal murine sepsis models. Treatment with matrix metalloprotease inhibitors prevented aberrant inflammatory and coagulopathic activities post-ST infection and increased survival. Antibiotic treatment regimens initiated after specific changes arise in the plasma proteome post-ST infection were predictive of an increase in disease relapse and death after cessation of antibiotic treatment. INTERPRETATION Altered blood proteomics provides a platform to develop rapid and easy-to-perform tests to predict sepsis for early intervention via biomarker incorporation into existing blood tests prompted by patient presentation with general malaise, and to stratify Gram-negative and Gram-positive infections for appropriate treatment. Antibiotics are less effective in microbial clearance when initiated after the onset of altered blood proteomics as evidenced by increased disease relapse and death after termination of antibiotic therapy. Treatment failure is potentially due to altered bacterial / host-responses and associated increased host-driven pathology, providing insight into why delays in antibiotic administration in human sepsis are associated with increased risk for death. Delayed treatment may thus require prolonged therapy for microbial clearance despite the prevailing notion of antibiotic de-escalation and shortened courses of antibiotics to improve drug stewardship. FUNDING National Institutes of Health, U.S. Army.
Collapse
Affiliation(s)
- Douglas M. Heithoff
- Department of Molecular, Cellular, and Developmental Biology, University of California, Santa Barbara CA 93106, USA,Institute for Collaborative Biotechnologies, University of California, Santa Barbara, CA 93106, USA
| | - Genaro Pimienta
- Cancer Metabolism and Signaling Networks Program, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA 92037, USA
| | - Scott P. Mahan
- Department of Molecular, Cellular, and Developmental Biology, University of California, Santa Barbara CA 93106, USA,Institute for Collaborative Biotechnologies, University of California, Santa Barbara, CA 93106, USA,Department of Medical Microbiology and Immunology, School of Medicine, University of California, Davis CA 95616, USA
| | - Won Ho Yang
- Department of Molecular, Cellular, and Developmental Biology, University of California, Santa Barbara CA 93106, USA,Glycosylation Network Research Center and Department of Systems Biology, College of Life Science and Biotechnology, Yonsei University, Seoul 03722, Republic of Korea,Infectious and Inflammatory Diseases Research Center, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA 92037, USA
| | - Dzung T. Le
- Department of Pathology, University of California, La Jolla, San Diego, CA 92093, USA
| | - John K. House
- Faculty of Science, Sydney School of Veterinary Science, The University of Sydney, Camden, New South Wales 2570, Australia
| | - Jamey D. Marth
- Department of Molecular, Cellular, and Developmental Biology, University of California, Santa Barbara CA 93106, USA,Infectious and Inflammatory Diseases Research Center, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA 92037, USA
| | - Jeffrey W. Smith
- Cancer Metabolism and Signaling Networks Program, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA 92037, USA
| | - Michael J. Mahan
- Department of Molecular, Cellular, and Developmental Biology, University of California, Santa Barbara CA 93106, USA,Institute for Collaborative Biotechnologies, University of California, Santa Barbara, CA 93106, USA,Corresponding author at: Department of Molecular, Cellular, and Developmental Biology, University of California, Santa Barbara CA 93106, USA.
| |
Collapse
|
6
|
Jiang Y, Tang Y, Hoover C, Kondo Y, Huang D, Restagno D, Shao B, Gao L, Michael McDaniel J, Zhou M, Silasi-Mansat R, McGee S, Jiang M, Bai X, Lupu F, Ruan C, Marth JD, Wu D, Han Y, Xia L. Kupffer cell receptor CLEC4F is important for the destruction of desialylated platelets in mice. Cell Death Differ 2021; 28:3009-3021. [PMID: 33993195 PMCID: PMC8564511 DOI: 10.1038/s41418-021-00797-w] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [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: 09/30/2020] [Revised: 04/21/2021] [Accepted: 04/26/2021] [Indexed: 02/04/2023] Open
Abstract
The liver has recently been identified as a major organ for destruction of desialylated platelets. However, the underlying mechanism remains unclear. Kupffer cells, which are professional phagocytic cells in the liver, comprise the largest population of resident tissue macrophages in the body. Kupffer cells express a C-type lectin receptor, CLEC4F, that recognizes desialylated glycans with an unclear in vivo role in mediating platelet destruction. In this study, we generated a CLEC4F-deficient mouse model (Clec4f-/-) and found that CLEC4F was specifically expressed by Kupffer cells. Using the Clec4f-/- mice and a newly generated platelet-specific reporter mouse line, we revealed a critical role for CLEC4F on Kupffer cells in mediating destruction of desialylated platelets in the liver in vivo. Platelet clearance experiments and ultrastructural analysis revealed that desialylated platelets were phagocytized predominantly by Kupffer cells in a CLEC4F-dependent manner in mice. Collectively, these findings identify CLEC4F as a Kupffer cell receptor important for the destruction of desialylated platelets induced by bacteria-derived neuraminidases, which provide new insights into the pathogenesis of thrombocytopenia in disease conditions such as sepsis.
Collapse
Affiliation(s)
- Yizhi Jiang
- grid.429222.d0000 0004 1798 0228Jiangsu Institute of Hematology, National Clinical Research Center for Hematologic Diseases, NHC Key Laboratory of Thrombosis and Hemostasis, The First Affiliated Hospital of Soochow University, Suzhou, 215006 China ,grid.452929.10000 0004 8513 0241Department of Hematology, The First Affiliated Hospital of Wannan Medical College, Wuhu, 241001 China ,grid.274264.10000 0000 8527 6890Cardiovascular Biology Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK 73104 USA ,grid.263761.70000 0001 0198 0694Collaborative Innovation Center of Hematology, Soochow University, Suzhou, 215006 China
| | - Yaqiong Tang
- grid.429222.d0000 0004 1798 0228Jiangsu Institute of Hematology, National Clinical Research Center for Hematologic Diseases, NHC Key Laboratory of Thrombosis and Hemostasis, The First Affiliated Hospital of Soochow University, Suzhou, 215006 China ,grid.274264.10000 0000 8527 6890Cardiovascular Biology Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK 73104 USA ,grid.263761.70000 0001 0198 0694Collaborative Innovation Center of Hematology, Soochow University, Suzhou, 215006 China
| | - Christopher Hoover
- grid.274264.10000 0000 8527 6890Cardiovascular Biology Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK 73104 USA
| | - Yuji Kondo
- grid.274264.10000 0000 8527 6890Cardiovascular Biology Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK 73104 USA
| | - Dongping Huang
- grid.452929.10000 0004 8513 0241Department of Hematology, The First Affiliated Hospital of Wannan Medical College, Wuhu, 241001 China
| | - Damien Restagno
- grid.263761.70000 0001 0198 0694State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou, 215123 China
| | - Bojing Shao
- grid.274264.10000 0000 8527 6890Cardiovascular Biology Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK 73104 USA
| | - Liang Gao
- grid.274264.10000 0000 8527 6890Cardiovascular Biology Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK 73104 USA
| | - J. Michael McDaniel
- grid.274264.10000 0000 8527 6890Cardiovascular Biology Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK 73104 USA
| | - Meixiang Zhou
- grid.274264.10000 0000 8527 6890Cardiovascular Biology Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK 73104 USA
| | - Robert Silasi-Mansat
- grid.274264.10000 0000 8527 6890Cardiovascular Biology Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK 73104 USA
| | - Samuel McGee
- grid.274264.10000 0000 8527 6890Cardiovascular Biology Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK 73104 USA
| | - Miao Jiang
- grid.429222.d0000 0004 1798 0228Jiangsu Institute of Hematology, National Clinical Research Center for Hematologic Diseases, NHC Key Laboratory of Thrombosis and Hemostasis, The First Affiliated Hospital of Soochow University, Suzhou, 215006 China ,grid.263761.70000 0001 0198 0694Collaborative Innovation Center of Hematology, Soochow University, Suzhou, 215006 China
| | - Xia Bai
- grid.429222.d0000 0004 1798 0228Jiangsu Institute of Hematology, National Clinical Research Center for Hematologic Diseases, NHC Key Laboratory of Thrombosis and Hemostasis, The First Affiliated Hospital of Soochow University, Suzhou, 215006 China ,grid.263761.70000 0001 0198 0694Collaborative Innovation Center of Hematology, Soochow University, Suzhou, 215006 China ,grid.263761.70000 0001 0198 0694State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou, 215123 China
| | - Florea Lupu
- grid.274264.10000 0000 8527 6890Cardiovascular Biology Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK 73104 USA
| | - Changgeng Ruan
- grid.429222.d0000 0004 1798 0228Jiangsu Institute of Hematology, National Clinical Research Center for Hematologic Diseases, NHC Key Laboratory of Thrombosis and Hemostasis, The First Affiliated Hospital of Soochow University, Suzhou, 215006 China ,grid.263761.70000 0001 0198 0694Collaborative Innovation Center of Hematology, Soochow University, Suzhou, 215006 China ,grid.263761.70000 0001 0198 0694State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou, 215123 China
| | - Jamey D. Marth
- grid.133342.40000 0004 1936 9676Center for Nanomedicine, SBP Medical Discovery Institute, and Department of Molecular, Cellular, and Developmental Biology, University of California, Santa Barbara, CA 93106 USA
| | - Depei Wu
- grid.429222.d0000 0004 1798 0228Jiangsu Institute of Hematology, National Clinical Research Center for Hematologic Diseases, NHC Key Laboratory of Thrombosis and Hemostasis, The First Affiliated Hospital of Soochow University, Suzhou, 215006 China ,grid.263761.70000 0001 0198 0694Collaborative Innovation Center of Hematology, Soochow University, Suzhou, 215006 China
| | - Yue Han
- grid.429222.d0000 0004 1798 0228Jiangsu Institute of Hematology, National Clinical Research Center for Hematologic Diseases, NHC Key Laboratory of Thrombosis and Hemostasis, The First Affiliated Hospital of Soochow University, Suzhou, 215006 China ,grid.263761.70000 0001 0198 0694Collaborative Innovation Center of Hematology, Soochow University, Suzhou, 215006 China
| | - Lijun Xia
- grid.429222.d0000 0004 1798 0228Jiangsu Institute of Hematology, National Clinical Research Center for Hematologic Diseases, NHC Key Laboratory of Thrombosis and Hemostasis, The First Affiliated Hospital of Soochow University, Suzhou, 215006 China ,grid.274264.10000 0000 8527 6890Cardiovascular Biology Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK 73104 USA ,grid.263761.70000 0001 0198 0694Collaborative Innovation Center of Hematology, Soochow University, Suzhou, 215006 China
| |
Collapse
|
7
|
Sun J, Uchiyama S, Olson J, Morodomi Y, Cornax I, Ando N, Kohno Y, Kyaw MMT, Aguilar B, Haste NM, Kanaji S, Kanaji T, Rose WE, Sakoulas G, Marth JD, Nizet V. Repurposed drugs block toxin-driven platelet clearance by the hepatic Ashwell-Morell receptor to clear Staphylococcus aureus bacteremia. Sci Transl Med 2021; 13:13/586/eabd6737. [PMID: 33762439 DOI: 10.1126/scitranslmed.abd6737] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2020] [Accepted: 03/01/2021] [Indexed: 12/13/2022]
Abstract
Staphylococcus aureus (SA) bloodstream infections cause high morbidity and mortality (20 to 30%) despite modern supportive care. In a human bacteremia cohort, we found that development of thrombocytopenia was correlated to increased mortality and increased α-toxin expression by the pathogen. Platelet-derived antibacterial peptides are important in bloodstream defense against SA, but α-toxin decreased platelet viability, induced platelet sialidase to cause desialylation of platelet glycoproteins, and accelerated platelet clearance by the hepatic Ashwell-Morell receptor (AMR). Ticagrelor (Brilinta), a commonly prescribed P2Y12 receptor inhibitor used after myocardial infarction, blocked α-toxin-mediated platelet injury and resulting thrombocytopenia, thereby providing protection from lethal SA infection in a murine intravenous challenge model. Genetic deletion or pharmacological inhibition of AMR stabilized platelet counts and enhanced resistance to SA infection, and the anti-influenza sialidase inhibitor oseltamivir (Tamiflu) provided similar therapeutic benefit. Thus, a "toxin-platelet-AMR" regulatory pathway plays a critical role in the pathogenesis of SA bloodstream infection, and its elucidation provides proof of concept for repurposing two commonly prescribed drugs as adjunctive therapies to improve patient outcomes.
Collapse
Affiliation(s)
- Josh Sun
- Biomedical Sciences Graduate Program, UC San Diego, La Jolla, CA 92093, USA.,Department of Pediatrics, UC San Diego, La Jolla, CA 92093, USA.,Skaggs School of Pharmacy and Pharmaceutical Sciences, UC San Diego, La Jolla, CA 92093, USA
| | - Satoshi Uchiyama
- Biomedical Sciences Graduate Program, UC San Diego, La Jolla, CA 92093, USA
| | - Joshua Olson
- Biomedical Sciences Graduate Program, UC San Diego, La Jolla, CA 92093, USA
| | - Yosuke Morodomi
- Department of Molecular Medicine, MERU-Roon Research Center on Vascular Biology, Scripps Research, La Jolla, CA 92037, USA
| | - Ingrid Cornax
- Biomedical Sciences Graduate Program, UC San Diego, La Jolla, CA 92093, USA
| | - Nao Ando
- Biomedical Sciences Graduate Program, UC San Diego, La Jolla, CA 92093, USA
| | - Yohei Kohno
- Biomedical Sciences Graduate Program, UC San Diego, La Jolla, CA 92093, USA
| | - May M T Kyaw
- Biomedical Sciences Graduate Program, UC San Diego, La Jolla, CA 92093, USA
| | - Bernice Aguilar
- Biomedical Sciences Graduate Program, UC San Diego, La Jolla, CA 92093, USA
| | - Nina M Haste
- Biomedical Sciences Graduate Program, UC San Diego, La Jolla, CA 92093, USA.,Department of Pediatrics, UC San Diego, La Jolla, CA 92093, USA.,Skaggs School of Pharmacy and Pharmaceutical Sciences, UC San Diego, La Jolla, CA 92093, USA
| | - Sachiko Kanaji
- Department of Molecular Medicine, MERU-Roon Research Center on Vascular Biology, Scripps Research, La Jolla, CA 92037, USA
| | - Taisuke Kanaji
- Department of Molecular Medicine, MERU-Roon Research Center on Vascular Biology, Scripps Research, La Jolla, CA 92037, USA
| | - Warren E Rose
- School of Pharmacy, University of Wisconsin, Madison, WI 53705, USA
| | - George Sakoulas
- Department of Pediatrics, UC San Diego, La Jolla, CA 92093, USA
| | - Jamey D Marth
- Center for Nanomedicine, UC Santa Barbara, Santa Barbara, CA 93106, USA.,Sanford Burnham Prebys Medical Discovery Institute, UC Santa Barbara, Santa Barbara, CA 93106, USA
| | - Victor Nizet
- Biomedical Sciences Graduate Program, UC San Diego, La Jolla, CA 92093, USA. .,Department of Pediatrics, UC San Diego, La Jolla, CA 92093, USA.,Skaggs School of Pharmacy and Pharmaceutical Sciences, UC San Diego, La Jolla, CA 92093, USA
| |
Collapse
|
8
|
Deppermann C, Kratofil RM, Peiseler M, David BA, Zindel J, Castanheira FVES, van der Wal F, Carestia A, Jenne CN, Marth JD, Kubes P. Macrophage galactose lectin is critical for Kupffer cells to clear aged platelets. J Exp Med 2020; 217:133651. [PMID: 31978220 PMCID: PMC7144524 DOI: 10.1084/jem.20190723] [Citation(s) in RCA: 79] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Revised: 10/01/2019] [Accepted: 12/17/2019] [Indexed: 12/21/2022] Open
Abstract
Every day, megakaryocytes produce billions of platelets that circulate for several days and eventually are cleared by the liver. The exact removal mechanism, however, remains unclear. Loss of sialic acid residues is thought to feature in the aging and clearance of platelets. Using state-of-the-art spinning disk intravital microscopy to delineate the different compartments and cells of the mouse liver, we observed rapid accumulation of desialylated platelets predominantly on Kupffer cells, with only a few on endothelial cells and none on hepatocytes. Kupffer cell depletion prevented the removal of aged platelets from circulation. Ashwell-Morell receptor (AMR) deficiency alone had little effect on platelet uptake. Macrophage galactose lectin (MGL) together with AMR mediated clearance of desialylated or cold-stored platelets by Kupffer cells. Effective clearance is critical, as mice with an aged platelet population displayed a bleeding phenotype. Our data provide evidence that the MGL of Kupffer cells plays a significant role in the removal of desialylated platelets through a collaboration with the AMR, thereby maintaining a healthy and functional platelet compartment.
Collapse
Affiliation(s)
- Carsten Deppermann
- Department of Physiology and Pharmacology, University of Calgary, Calgary, Alberta, Canada.,Calvin, Phoebe and Joan Snyder Institute for Chronic Diseases, University of Calgary, Calgary, Alberta, Canada.,Institute of Clinical Chemistry and Laboratory Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Rachel M Kratofil
- Department of Physiology and Pharmacology, University of Calgary, Calgary, Alberta, Canada.,Calvin, Phoebe and Joan Snyder Institute for Chronic Diseases, University of Calgary, Calgary, Alberta, Canada
| | - Moritz Peiseler
- Department of Physiology and Pharmacology, University of Calgary, Calgary, Alberta, Canada.,Calvin, Phoebe and Joan Snyder Institute for Chronic Diseases, University of Calgary, Calgary, Alberta, Canada
| | - Bruna A David
- Department of Physiology and Pharmacology, University of Calgary, Calgary, Alberta, Canada.,Calvin, Phoebe and Joan Snyder Institute for Chronic Diseases, University of Calgary, Calgary, Alberta, Canada
| | - Joel Zindel
- Department of Physiology and Pharmacology, University of Calgary, Calgary, Alberta, Canada.,Calvin, Phoebe and Joan Snyder Institute for Chronic Diseases, University of Calgary, Calgary, Alberta, Canada
| | - Fernanda Vargas E Silva Castanheira
- Department of Physiology and Pharmacology, University of Calgary, Calgary, Alberta, Canada.,Calvin, Phoebe and Joan Snyder Institute for Chronic Diseases, University of Calgary, Calgary, Alberta, Canada
| | - Fardau van der Wal
- Department of Physiology and Pharmacology, University of Calgary, Calgary, Alberta, Canada.,Calvin, Phoebe and Joan Snyder Institute for Chronic Diseases, University of Calgary, Calgary, Alberta, Canada
| | - Agostina Carestia
- Calvin, Phoebe and Joan Snyder Institute for Chronic Diseases, University of Calgary, Calgary, Alberta, Canada.,Department of Microbiology, Immunology and Infectious Diseases, University of Calgary, Calgary, Alberta, Canada
| | - Craig N Jenne
- Calvin, Phoebe and Joan Snyder Institute for Chronic Diseases, University of Calgary, Calgary, Alberta, Canada.,Department of Microbiology, Immunology and Infectious Diseases, University of Calgary, Calgary, Alberta, Canada
| | - Jamey D Marth
- Center for Nanomedicine, SBP Medical Discovery Institute, and Department of Molecular, Cellular, and Developmental Biology, University of California, Santa Barbara, Santa Barbara, CA
| | - Paul Kubes
- Department of Physiology and Pharmacology, University of Calgary, Calgary, Alberta, Canada.,Calvin, Phoebe and Joan Snyder Institute for Chronic Diseases, University of Calgary, Calgary, Alberta, Canada
| |
Collapse
|
9
|
Shin T, Hiraoka Y, Yamasaki T, Marth JD, Penninger JM, Kanai-Azuma M, Tanaka K, Kofuji S, Nishina H. MKK7 deficiency in mature neurons impairs parental behavior in mice. Genes Cells 2020; 26:5-17. [PMID: 33098150 PMCID: PMC7839552 DOI: 10.1111/gtc.12816] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Revised: 10/15/2020] [Accepted: 10/16/2020] [Indexed: 11/28/2022]
Abstract
c‐Jun N‐terminal kinases (JNKs) are constitutively activated in mammalian brains and are indispensable for their development and neural functions. MKK7 is an upstream activator of all JNKs. However, whether the common JNK signaling pathway regulates the brain's control of social behavior remains unclear. Here, we show that female mice in which Mkk7 is deleted specifically in mature neurons (Mkk7flox/floxSyn‐Cre mice) give birth to a normal number of pups but fail to raise them due to a defect in pup retrieval. To explore the mechanism underlying this abnormality, we performed comprehensive behavioral tests. Mkk7flox/floxSyn‐Cre mice showed normal locomotor functions and cognitive ability but exhibited depression‐like behavior. cDNA microarray analysis of mutant brain revealed an altered gene expression pattern. Quantitative RT‐PCR analysis demonstrated that mRNA expression levels of genes related to neural signaling pathways and a calcium channel were significantly different from controls. In addition, loss of neural MKK7 had unexpected regulatory effects on gene expression patterns in oligodendrocytes. These findings indicate that MKK7 has an important role in regulating the gene expression patterns responsible for promoting normal social behavior and staving off depression.
Collapse
Affiliation(s)
- Tadashi Shin
- Department of Developmental and Regenerative Biology, Medical Research Institute, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Yuichi Hiraoka
- Department of Molecular Neuroscience, Medical Research Institute, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Tokiwa Yamasaki
- Department of Developmental and Regenerative Biology, Medical Research Institute, Tokyo Medical and Dental University (TMDU), Tokyo, Japan.,Department of Physiology, Keio University School of Medicine, Tokyo, Japan
| | - Jamey D Marth
- Center for Nanomedicine, Department of Molecular, Cellular and Developmental Biology, SBP Medical Discovery Institute, University of California Santa Barbara, Santa Barbara, CA, USA
| | - Josef M Penninger
- IMBA, Institute of Molecular Biotechnology of the Austrian Academy of Sciences, Vienna, Austria.,Department of Medical Genetics, Life Sciences Institute, University of British Columbia, Vancouver, BC, Canada
| | - Masami Kanai-Azuma
- Department of Experimental Animal Model for Human Disease, Center for Experimental Animals, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Kohichi Tanaka
- Department of Molecular Neuroscience, Medical Research Institute, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Satoshi Kofuji
- Department of Developmental and Regenerative Biology, Medical Research Institute, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Hiroshi Nishina
- Department of Developmental and Regenerative Biology, Medical Research Institute, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| |
Collapse
|
10
|
Aziz PV, Haslund-Gourley BS, Heithoff DM, Westman JS, Restagno D, Lewis BJ, Fried JC, Ilse MB, Lübke T, Marth JD. Altered Glycosidase Activities at Physiological pH in the Pathogenesis of Sepsis. FASEB J 2020. [DOI: 10.1096/fasebj.2020.34.s1.07166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Peter V. Aziz
- Center for Nanomedicine
- Sanford Burnham Prebys Medical Discovery Institute
- University of California Santa Barbara
| | | | | | - Julia S. Westman
- Center for Nanomedicine
- Sanford Burnham Prebys Medical Discovery Institute
| | - Damien Restagno
- Center for Nanomedicine
- Sanford Burnham Prebys Medical Discovery Institute
| | - Benjamin J. Lewis
- Center for Nanomedicine
- Sanford Burnham Prebys Medical Discovery Institute
| | | | | | | | - Jamey D. Marth
- Center for Nanomedicine
- Sanford Burnham Prebys Medical Discovery Institute
- University of California Santa Barbara
| |
Collapse
|
11
|
Westman JS, Yang WH, Marth JD. Investigating the Functions of Endogenous Neuraminidases Neu1 and Neu3 in Blood Cell and Protein Homeostasis. FASEB J 2020. [DOI: 10.1096/fasebj.2020.34.s1.06928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Julia S. Westman
- Center for Nanomedicine
- Sanford Burnham Prebys Medical Discovery Institute
| | - Won Ho Yang
- Center for Nanomedicine
- Sanford Burnham Prebys Medical Discovery Institute
- University of California Santa Barbara
| | - Jamey D. Marth
- Center for Nanomedicine
- Sanford Burnham Prebys Medical Discovery Institute
- University of California Santa Barbara
| |
Collapse
|
12
|
Restagno D, Pimienta G, Yang WH, Aziz PV, Haslund-Gourley BS, Smith JW, Marth JD. Glycoprotein Aging with Increased Mannose Exposure Linked to Cardiovascular Disease through the Macrophage Mannose Receptor (Mrc1). FASEB J 2020. [DOI: 10.1096/fasebj.2020.34.s1.07039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Damien Restagno
- Center for Nanomedicine
- Sanford Burnham Prebys Medical Discovery Institute
| | | | - Won Ho Yang
- Center for Nanomedicine
- Sanford Burnham Prebys Medical Discovery Institute
| | - Peter V. Aziz
- Center for Nanomedicine
- Sanford Burnham Prebys Medical Discovery Institute
| | | | | | - Jamey D. Marth
- Center for Nanomedicine
- Sanford Burnham Prebys Medical Discovery Institute
- University of California Santa Barbara
| |
Collapse
|
13
|
Yang WH, Heithoff DM, Aziz PV, Haslund-Gourley B, Westman JS, Narisawa S, Pinkerton AB, Millán JL, Nizet V, Mahan MJ, Marth JD. Accelerated Aging and Clearance of Host Anti-inflammatory Enzymes by Discrete Pathogens Fuels Sepsis. Cell Host Microbe 2019; 24:500-513.e5. [PMID: 30308156 DOI: 10.1016/j.chom.2018.09.011] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [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: 06/18/2018] [Revised: 08/09/2018] [Accepted: 09/16/2018] [Indexed: 12/29/2022]
Abstract
Sepsis is a life-threatening inflammatory syndrome accompanying a bloodstream infection. Frequently secondary to pathogenic bacterial infections, sepsis remains difficult to treat as a singular disease mechanism. We compared the pathogenesis of murine sepsis experimentally elicited by five bacterial pathogens and report similarities among host responses to Gram-negative Salmonella and E. coli. We observed that a host protective mechanism involving de-toxification of lipopolysaccharide by circulating alkaline phosphatase (AP) isozymes was incapacitated during sepsis caused by Salmonella or E. coli through activation of host Toll-like receptor 4, which triggered Neu1 and Neu3 neuraminidase induction. Elevated neuraminidase activity accelerated the molecular aging and clearance of AP isozymes, thereby intensifying disease. Mice deficient in the sialyltransferase ST3Gal6 displayed increased disease severity, while deficiency of the endocytic lectin hepatic Ashwell-Morell receptor was protective. AP augmentation or neuraminidase inhibition diminished inflammation and promoted host survival. This study illuminates distinct routes of sepsis pathogenesis, which may inform therapeutic development.
Collapse
Affiliation(s)
- Won Ho Yang
- Center for Nanomedicine, University of California Santa Barbara, Santa Barbara, California 93106, USA; Sanford-Burham-Prebys Medical Discovery Institute, University of California Santa Barbara, Santa Barbara, California 93106, USA
| | - Douglas M Heithoff
- Center for Nanomedicine, University of California Santa Barbara, Santa Barbara, California 93106, USA; Department of Molecular, Cellular, and Developmental Biology, University of California Santa Barbara, Santa Barbara, California 93106, USA
| | - Peter V Aziz
- Center for Nanomedicine, University of California Santa Barbara, Santa Barbara, California 93106, USA; Sanford-Burham-Prebys Medical Discovery Institute, University of California Santa Barbara, Santa Barbara, California 93106, USA; Department of Molecular, Cellular, and Developmental Biology, University of California Santa Barbara, Santa Barbara, California 93106, USA
| | - Benjamin Haslund-Gourley
- Center for Nanomedicine, University of California Santa Barbara, Santa Barbara, California 93106, USA; Sanford-Burham-Prebys Medical Discovery Institute, University of California Santa Barbara, Santa Barbara, California 93106, USA; Department of Molecular, Cellular, and Developmental Biology, University of California Santa Barbara, Santa Barbara, California 93106, USA
| | - Julia S Westman
- Center for Nanomedicine, University of California Santa Barbara, Santa Barbara, California 93106, USA; Sanford-Burham-Prebys Medical Discovery Institute, University of California Santa Barbara, Santa Barbara, California 93106, USA
| | - Sonoko Narisawa
- Sanford-Burham-Prebys Medical Discovery Institute, University of California Santa Barbara, Santa Barbara, California 93106, USA
| | - Anthony B Pinkerton
- Sanford-Burham-Prebys Medical Discovery Institute, University of California Santa Barbara, Santa Barbara, California 93106, USA
| | - José Luis Millán
- Sanford-Burham-Prebys Medical Discovery Institute, University of California Santa Barbara, Santa Barbara, California 93106, USA
| | - Victor Nizet
- Department of Pediatrics, University of California San Diego, La Jolla, CA 92093; Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, La Jolla, CA 92093, USA
| | - Michael J Mahan
- Center for Nanomedicine, University of California Santa Barbara, Santa Barbara, California 93106, USA; Department of Molecular, Cellular, and Developmental Biology, University of California Santa Barbara, Santa Barbara, California 93106, USA
| | - Jamey D Marth
- Center for Nanomedicine, University of California Santa Barbara, Santa Barbara, California 93106, USA; Sanford-Burham-Prebys Medical Discovery Institute, University of California Santa Barbara, Santa Barbara, California 93106, USA; Department of Molecular, Cellular, and Developmental Biology, University of California Santa Barbara, Santa Barbara, California 93106, USA.
| |
Collapse
|
14
|
Pimienta G, Heithoff DM, Rosa-Campos A, Tran M, Esko JD, Mahan MJ, Marth JD, Smith JW. Plasma Proteome Signature of Sepsis: a Functionally Connected Protein Network. Proteomics 2019; 19:e1800389. [PMID: 30706660 DOI: 10.1002/pmic.201800389] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [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: 11/08/2018] [Revised: 01/14/2019] [Indexed: 12/29/2022]
Abstract
Sepsis is an extreme host response to infection that leads to loss of organ function and cardiovascular integrity. Mortality from sepsis is on the rise. Despite more than three decades of research and clinical trials, specific diagnostic and therapeutic strategies for sepsis are still absent. The use of LFQ- and TMT-based quantitative proteomics is reported here to study the plasma proteome in five mouse models of sepsis. A knowledge-based interpretation of the data reveals a protein network with extensive connectivity through documented functional or physical interactions. The individual proteins in the network all have a documented role in sepsis and are known to be extracellular. The changes in protein abundance observed in the mouse models of sepsis have for the most part the same directionality (increased or decreased abundance) as reported in the literature for human sepsis. This network has been named the Plasma Proteome Signature of Sepsis (PPSS). The PPSS is a quantifiable molecular readout that can supplant the current symptom-based approach used to diagnose sepsis. This type of molecular interpretation of sepsis, its progression, and its response to therapeutic intervention are an important step in advancing our understanding of sepsis, and for discovering and evaluating new therapeutic strategies.
Collapse
Affiliation(s)
- Genaro Pimienta
- Cancer Metabolism and Signaling Networks Program, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, 9207, USA
| | - Douglas M Heithoff
- Department of Molecular, Cellular, and Developmental Biology, University of California, Santa Barbara, CA, 93106, USA.,Center for Nanomedicine, University of California, Santa Barbara, CA, 93106, USA
| | - Alexandre Rosa-Campos
- Proteomics Facility, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, 92037, USA
| | - Minerva Tran
- Cancer Metabolism and Signaling Networks Program, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, 9207, USA
| | - Jeffrey D Esko
- Department of Cellular and Molecular Medicine, Glycobiology Research and Training Center, University of California, San Diego, La Jolla, CA, 92093, USA
| | - Michael J Mahan
- Department of Molecular, Cellular, and Developmental Biology, University of California, Santa Barbara, CA, 93106, USA
| | - Jamey D Marth
- Cancer Metabolism and Signaling Networks Program, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, 9207, USA.,Department of Molecular, Cellular, and Developmental Biology, University of California, Santa Barbara, CA, 93106, USA.,Center for Nanomedicine, University of California, Santa Barbara, CA, 93106, USA
| | - Jeffrey W Smith
- Cancer Metabolism and Signaling Networks Program, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, 9207, USA.,Department of Molecular, Cellular, and Developmental Biology, University of California, Santa Barbara, CA, 93106, USA
| |
Collapse
|
15
|
Matsubara N, Imamura A, Yonemizu T, Akatsu C, Yang H, Ueki A, Watanabe N, Abdu-Allah H, Numoto N, Takematsu H, Kitazume S, Tedder TF, Marth JD, Ito N, Ando H, Ishida H, Kiso M, Tsubata T. CD22-Binding Synthetic Sialosides Regulate B Lymphocyte Proliferation Through CD22 Ligand-Dependent and Independent Pathways, and Enhance Antibody Production in Mice. Front Immunol 2018; 9:820. [PMID: 29725338 PMCID: PMC5917077 DOI: 10.3389/fimmu.2018.00820] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [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: 11/12/2017] [Accepted: 04/04/2018] [Indexed: 01/06/2023] Open
Abstract
Sialic acid-binding immunoglobulin-like lectins (Siglecs) are expressed in various immune cells and most of them carry signaling functions. High-affinity synthetic sialoside ligands have been developed for various Siglecs. Therapeutic potentials of the nanoparticles and compounds that contain multiple numbers of these sialosides and other reagents such as toxins and antigens have been demonstrated. However, whether immune responses can be regulated by monomeric sialoside ligands has not yet been known. CD22 (also known as Siglec-2) is an inhibitory molecule preferentially expressed in B lymphocytes (B cells) and is constitutively bound and functionally regulated by α2,6 sialic acids expressed on the same cell (cis-ligands). Here, we developed synthetic sialosides GSC718 and GSC839 that bind to CD22 with high affinity (IC50 ~100 nM), and inhibit ligand binding of CD22. When B cells are activated by B cell antigen receptor (BCR) ligation, both GSC718 and GSC839 downregulate proliferation of B cells, and this regulation requires both CD22 and α2,6 sialic acids. This result suggests that these sialosides regulate BCR ligation-induced B cell activation by reversing endogenous ligand-mediated regulation of CD22. By contrast, GSC718 and GSC839 augment B cell proliferation induced by TLR ligands or CD40 ligation, and this augmentation requires CD22 but not α2,6 sialic acids. Thus, these sialosides appear to enhance B cell activation by directly suppressing the inhibitory function of CD22 independently of endogenous ligand-mediated regulation. Moreover, GSC839 augments B cell proliferation that depends on both BCR ligation and CD40 ligation as is the case for in vivo B cell responses to antigens, and enhanced antibody production to the extent comparable to CpG oligonuleotides or a small amount of alum. Although these known adjuvants induce production of the inflammatory cytokines or accumulation of inflammatory cells, CD22-binding sialosides do not. Thus, synthetic sialosides that bind to CD22 with high-affinity modulate B cell activation through endogenous ligand-dependent and independent pathways, and carry an adjuvant activity without inducing inflammation.
Collapse
Affiliation(s)
- Naoko Matsubara
- Department of Immunology, Medical Research Institute, Tokyo Medical and Dental University, Tokyo, Japan
| | - Akihiro Imamura
- Department of Applied Bio-Organic Chemistry, Gifu University, Gifu, Japan
| | - Tatsuya Yonemizu
- Department of Immunology, Medical Research Institute, Tokyo Medical and Dental University, Tokyo, Japan
| | - Chizuru Akatsu
- Department of Immunology, Medical Research Institute, Tokyo Medical and Dental University, Tokyo, Japan
| | - Hongrui Yang
- Department of Immunology, Medical Research Institute, Tokyo Medical and Dental University, Tokyo, Japan
| | - Akiharu Ueki
- Department of Applied Bio-Organic Chemistry, Gifu University, Gifu, Japan
| | - Natsuki Watanabe
- Department of Applied Bio-Organic Chemistry, Gifu University, Gifu, Japan
| | - Hajjaj Abdu-Allah
- Department of Applied Bio-Organic Chemistry, Gifu University, Gifu, Japan
| | - Nobutaka Numoto
- Department of Structural Biology, Medical Research Institute, Tokyo Medical and Dental University, Tokyo, Japan
| | - Hiromu Takematsu
- Department of Biological Chemistry, Human Health Sciences, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | | | - Thomas F Tedder
- Department of Immunology, Duke University Medical Center, Durham, NC, United States
| | - Jamey D Marth
- Center for Nanomedicine, University of California, Santa Barbara, CA, United States
| | - Nobutoshi Ito
- Department of Structural Biology, Medical Research Institute, Tokyo Medical and Dental University, Tokyo, Japan
| | - Hiromune Ando
- Center for Highly Advanced Integration of Nano and Life Sciences (G-CHAIN), Gifu University, Gifu, Japan
| | - Hideharu Ishida
- Department of Applied Bio-Organic Chemistry, Gifu University, Gifu, Japan.,Center for Highly Advanced Integration of Nano and Life Sciences (G-CHAIN), Gifu University, Gifu, Japan
| | - Makoto Kiso
- Department of Applied Bio-Organic Chemistry, Gifu University, Gifu, Japan
| | - Takeshi Tsubata
- Department of Immunology, Medical Research Institute, Tokyo Medical and Dental University, Tokyo, Japan
| |
Collapse
|
16
|
Yang WH, Heithoff DM, Aziz PV, Sperandio M, Nizet V, Mahan MJ, Marth JD. Recurrent infection progressively disables host protection against intestinal inflammation. Science 2018; 358:358/6370/eaao5610. [PMID: 29269445 DOI: 10.1126/science.aao5610] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2017] [Accepted: 11/13/2017] [Indexed: 12/15/2022]
Abstract
Intestinal inflammation is the central pathological feature of colitis and the inflammatory bowel diseases. These syndromes arise from unidentified environmental factors. We found that recurrent nonlethal gastric infections of Gram-negative Salmonella enterica Typhimurium (ST), a major source of human food poisoning, caused inflammation of murine intestinal tissue, predominantly the colon, which persisted after pathogen clearance and irreversibly escalated in severity with repeated infections. ST progressively disabled a host mechanism of protection by inducing endogenous neuraminidase activity, which accelerated the molecular aging and clearance of intestinal alkaline phosphatase (IAP). Disease was linked to a Toll-like receptor 4 (TLR4)-dependent mechanism of IAP desialylation with accumulation of the IAP substrate and TLR4 ligand, lipopolysaccharide-phosphate. The administration of IAP or the antiviral neuraminidase inhibitor zanamivir was therapeutic by maintaining IAP abundance and function.
Collapse
Affiliation(s)
- Won Ho Yang
- Center for Nanomedicine, University of California, Santa Barbara, Santa Barbara, CA 93106, USA.,Sanford Burnham Prebys Medical Discovery Institute, University of California, Santa Barbara, Santa Barbara, CA 93106, USA.,Department of Molecular, Cellular, and Developmental Biology, University of California, Santa Barbara, Santa Barbara, CA 93106, USA
| | - Douglas M Heithoff
- Center for Nanomedicine, University of California, Santa Barbara, Santa Barbara, CA 93106, USA.,Department of Molecular, Cellular, and Developmental Biology, University of California, Santa Barbara, Santa Barbara, CA 93106, USA
| | - Peter V Aziz
- Center for Nanomedicine, University of California, Santa Barbara, Santa Barbara, CA 93106, USA.,Sanford Burnham Prebys Medical Discovery Institute, University of California, Santa Barbara, Santa Barbara, CA 93106, USA.,Department of Molecular, Cellular, and Developmental Biology, University of California, Santa Barbara, Santa Barbara, CA 93106, USA
| | - Markus Sperandio
- Walter-Brendel-Centre for Experimental Medicine, Ludwig-Maximilians-University, Munich, Germany
| | - Victor Nizet
- Department of Pediatrics and Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, La Jolla, CA 92093, USA
| | - Michael J Mahan
- Center for Nanomedicine, University of California, Santa Barbara, Santa Barbara, CA 93106, USA.,Department of Molecular, Cellular, and Developmental Biology, University of California, Santa Barbara, Santa Barbara, CA 93106, USA
| | - Jamey D Marth
- Center for Nanomedicine, University of California, Santa Barbara, Santa Barbara, CA 93106, USA. .,Sanford Burnham Prebys Medical Discovery Institute, University of California, Santa Barbara, Santa Barbara, CA 93106, USA.,Department of Molecular, Cellular, and Developmental Biology, University of California, Santa Barbara, Santa Barbara, CA 93106, USA
| |
Collapse
|
17
|
Yamasaki T, Deki-Arima N, Kaneko A, Miyamura N, Iwatsuki M, Matsuoka M, Fujimori-Tonou N, Okamoto-Uchida Y, Hirayama J, Marth JD, Yamanashi Y, Kawasaki H, Yamanaka K, Penninger JM, Shibata S, Nishina H. Age-dependent motor dysfunction due to neuron-specific disruption of stress-activated protein kinase MKK7. Sci Rep 2017; 7:7348. [PMID: 28779160 PMCID: PMC5544763 DOI: 10.1038/s41598-017-07845-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Accepted: 07/03/2017] [Indexed: 11/23/2022] Open
Abstract
c-Jun N-terminal kinase (JNK) is a member of the mitogen-activated protein kinase family and controls various physiological processes including apoptosis. A specific upstream activator of JNKs is the mitogen-activated protein kinase kinase 7 (MKK7). It has been reported that MKK7-JNK signaling plays an important regulatory role in neural development, however, post-developmental functions in the nervous system have not been elucidated. In this study, we generated neuron-specific Mkk7 knockout mice (MKK7 cKO), which impaired constitutive activation of JNK in the nervous system. MKK7 cKO mice displayed impaired circadian behavioral rhythms and decreased locomotor activity. MKK7 cKO mice at 8 months showed motor dysfunctions such as weakness of hind-limb and gait abnormality in an age-dependent manner. Axonal degeneration in the spinal cord and muscle atrophy were also observed, along with accumulation of the axonal transport proteins JNK-interacting protein 1 and amyloid beta precursor protein in the brains and spinal cords of MKK7 cKO mice. Thus, the MKK7-JNK signaling pathway plays important roles in regulating circadian rhythms and neuronal maintenance in the adult nervous system.
Collapse
Affiliation(s)
- Tokiwa Yamasaki
- Department of Developmental and Regenerative Biology, Medical Research Institute, Tokyo Medical and Dental University (TMDU), 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan
| | - Norie Deki-Arima
- Department of Developmental and Regenerative Biology, Medical Research Institute, Tokyo Medical and Dental University (TMDU), 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan
| | - Asahito Kaneko
- Laboratory of Physiology and Pharmacology, School of Advanced Science and Engineering, Waseda University, Tokyo, Japan
| | - Norio Miyamura
- Department of Developmental and Regenerative Biology, Medical Research Institute, Tokyo Medical and Dental University (TMDU), 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan
| | - Mamiko Iwatsuki
- Department of Hygiene and Public Health I, Tokyo Women's Medical University, Tokyo, Japan
| | - Masato Matsuoka
- Department of Hygiene and Public Health I, Tokyo Women's Medical University, Tokyo, Japan
| | - Noriko Fujimori-Tonou
- Laboratory for Molecular Dynamics of Mental Disorders, RIKEN Brain Science Institute, Wako, Saitama, 3510198, Japan
| | - Yoshimi Okamoto-Uchida
- Department of Developmental and Regenerative Biology, Medical Research Institute, Tokyo Medical and Dental University (TMDU), 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan
| | - Jun Hirayama
- Department of Developmental and Regenerative Biology, Medical Research Institute, Tokyo Medical and Dental University (TMDU), 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan
| | - Jamey D Marth
- Center for Nanomedicine, SBP Medical Discovery Institute, Department of Molecular, Cellular, and Developmental Biology, University of California Santa Barbara, Santa Barbara, California, USA
| | - Yuji Yamanashi
- Division of Genetics, Department of Cancer Biology, The Institute of Medical Science, The University of Tokyo, Shirokanedai, Minato-ku, Tokyo, 108-8639, Japan
| | - Hiroshi Kawasaki
- Department of Medical Neuroscience, Graduate School of Medical Sciences; Brain/Liver Interface Medicine Research Center, Kanazawa University, Kanazawa, Japan
| | - Koji Yamanaka
- Department of Neuroscience and Pathobiology, Research Institute of Environmental Medicine, Nagoya University, Nagoya, Japan
| | - Josef M Penninger
- IMBA, Institute of Molecular Biotechnology of the Austrian Academy of Sciences, Vienna, Austria
| | - Shigenobu Shibata
- Laboratory of Physiology and Pharmacology, School of Advanced Science and Engineering, Waseda University, Tokyo, Japan
| | - Hiroshi Nishina
- Department of Developmental and Regenerative Biology, Medical Research Institute, Tokyo Medical and Dental University (TMDU), 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan.
| |
Collapse
|
18
|
Ersoy SC, Heithoff DM, Barnes L, Tripp GK, House JK, Marth JD, Smith JW, Mahan MJ. Correcting a Fundamental Flaw in the Paradigm for Antimicrobial Susceptibility Testing. EBioMedicine 2017; 20:173-181. [PMID: 28579300 PMCID: PMC5478264 DOI: 10.1016/j.ebiom.2017.05.026] [Citation(s) in RCA: 121] [Impact Index Per Article: 17.3] [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: 04/07/2017] [Revised: 05/20/2017] [Accepted: 05/23/2017] [Indexed: 12/25/2022] Open
Abstract
The emergence and prevalence of antibiotic-resistant bacteria are an increasing cause of death worldwide, resulting in a global ‘call to action’ to avoid receding into an era lacking effective antibiotics. Despite the urgency, the healthcare industry still relies on a single in vitro bioassay to determine antibiotic efficacy. This assay fails to incorporate environmental factors normally present during host-pathogen interactions in vivo that significantly impact antibiotic efficacy. Here we report that standard antimicrobial susceptibility testing (AST) failed to detect antibiotics that are in fact effective in vivo; and frequently identified antibiotics that were instead ineffective as further confirmed in mouse models of infection and sepsis. Notably, AST performed in media mimicking host environments succeeded in identifying specific antibiotics that were effective in bacterial clearance and host survival, even though these same antibiotics failed in results using standard test media. Similarly, our revised media further identified antibiotics that were ineffective in vivo despite passing the AST standard for clinical use. Supplementation of AST medium with sodium bicarbonate, an abundant in vivo molecule that stimulates global changes in bacterial structure and gene expression, was found to be an important factor improving the predictive value of AST in the assignment of appropriate therapy. These findings have the potential to improve the means by which antibiotics are developed, tested, and prescribed. Standard antimicrobial susceptibility testing (AST) is fundamentally flawed because it is based largely on in vitro efficacy. AST performed under conditions that mimic natural infections improves the assignment of appropriate antibiotic therapy. In vivo altered susceptibility (IVAS) provides a new paradigm for drug discovery and therapeutic intervention.
Drug testing often excludes potent antibiotics for the treatment of bacterial infections, while frequently identifying antibiotics that are ineffective. However, drug testing under conditions that mimic natural infections succeeded in identifying effective antibiotics, even though these same antibiotics failed standard tests. This work suggests that standard drug-testing may be hindering patient treatment and slowing the process of discovery of new, effective, and safe antibiotics because it disqualifies effective compounds. These findings call for an overhaul of standardized drug testing which hasn't changed in > 50 years.
Collapse
Affiliation(s)
- Selvi C Ersoy
- Dept. of Molecular, Cellular and Developmental Biology, University of California, Santa Barbara, CA 93106, USA
| | - Douglas M Heithoff
- Dept. of Molecular, Cellular and Developmental Biology, University of California, Santa Barbara, CA 93106, USA; Center for Nanomedicine, University of California, Santa Barbara, CA 93106, USA
| | - Lucien Barnes
- Dept. of Molecular, Cellular and Developmental Biology, University of California, Santa Barbara, CA 93106, USA
| | - Geneva K Tripp
- Dept. of Molecular, Cellular and Developmental Biology, University of California, Santa Barbara, CA 93106, USA
| | - John K House
- University of Sydney, Faculty of Veterinary Science, Camden, New South Wales, Australia
| | - Jamey D Marth
- Dept. of Molecular, Cellular and Developmental Biology, University of California, Santa Barbara, CA 93106, USA; Center for Nanomedicine, University of California, Santa Barbara, CA 93106, USA; Sanford Burnham Prebys Medical Discovery Institute, Cancer Research Center, La Jolla, CA 92037, USA
| | - Jeffrey W Smith
- Sanford Burnham Prebys Medical Discovery Institute, Cancer Research Center, La Jolla, CA 92037, USA
| | - Michael J Mahan
- Dept. of Molecular, Cellular and Developmental Biology, University of California, Santa Barbara, CA 93106, USA; Center for Nanomedicine, University of California, Santa Barbara, CA 93106, USA.
| |
Collapse
|
19
|
Varki A, Cummings RD, Aebi M, Packer NH, Seeberger PH, Esko JD, Stanley P, Hart G, Darvill A, Kinoshita T, Prestegard JJ, Schnaar RL, Freeze HH, Marth JD, Bertozzi CR, Etzler ME, Frank M, Vliegenthart JF, Lütteke T, Perez S, Bolton E, Rudd P, Paulson J, Kanehisa M, Toukach P, Aoki-Kinoshita KF, Dell A, Narimatsu H, York W, Taniguchi N, Kornfeld S. Symbol Nomenclature for Graphical Representations of Glycans. Glycobiology 2016; 25:1323-4. [PMID: 26543186 DOI: 10.1093/glycob/cwv091] [Citation(s) in RCA: 684] [Impact Index Per Article: 85.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Ajit Varki
- Editor, Third Edition of Essentials of Glycobiology Glycan Symbol Nomenclature Discussion Group, 2014-2015 UC San Diego, La Jolla, CA, USA
| | - Richard D Cummings
- Editor, Third Edition of Essentials of Glycobiology Glycan Symbol Nomenclature Discussion Group, 2014-2015 Illustrations Editor, Essentials of Glycobiology Chair, Consortium for Functional Glycomics Harvard Medical School, Boston, MA, USA
| | - Markus Aebi
- Editor, Third Edition of Essentials of Glycobiology Glycan Symbol Nomenclature Discussion Group, 2014-2015 ETH Zürich, Zürich, Switzerland
| | - Nicole H Packer
- Editor, Third Edition of Essentials of Glycobiology Glycan Symbol Nomenclature Discussion Group, 2014-2015 Macquarie University, Sydney, NSW, Australia
| | - Peter H Seeberger
- Editor, Third Edition of Essentials of Glycobiology Glycan Symbol Nomenclature Discussion Group, 2014-2015 Max-Planck-Institute, Potsdam-Golm, Germany
| | - Jeffrey D Esko
- Editor, Third Edition of Essentials of Glycobiology UC San Diego, La Jolla, CA, USA
| | - Pamela Stanley
- Editor, Third Edition of Essentials of Glycobiology Albert Einstein College of Medicine, New York, NY, USA
| | - Gerald Hart
- Editor, Third Edition of Essentials of Glycobiology Johns Hopkins University, Baltimore, MD, USA
| | - Alan Darvill
- Editor, Third Edition of Essentials of Glycobiology University of Georgia, Athens, GA, USA
| | - Taroh Kinoshita
- Editor, Third Edition of Essentials of Glycobiology Osaka University, Osaka, Japan
| | - James J Prestegard
- Editor, Third Edition of Essentials of Glycobiology University of Georgia, Athens, GA, USA
| | - Ronald L Schnaar
- Editor, Third Edition of Essentials of Glycobiology Johns Hopkins University, Baltimore, MD, USA
| | - Hudson H Freeze
- Editor, earlier Edition of Essentials of Glycobiology Sanford-Burnham-Prebys Medical Discovery Institute, La Jolla, CA, USA
| | - Jamey D Marth
- Editor, earlier Edition of Essentials of Glycobiology UC Santa Barbara, Santa Barbara, CA, USA
| | - Carolyn R Bertozzi
- Editor, earlier Edition of Essentials of Glycobiology Stanford University, Stanford, CA, USA
| | - Marilynn E Etzler
- Editor, earlier Edition of Essentials of Glycobiology UC Davis, Davis, CA, USA
| | - Martin Frank
- Glycan Symbol Nomenclature Discussion Group, 2014-2015 IUPAC Carbohydrate Nomenclature Committee Biognos AB, Gothenburg, Sweden
| | - Johannes Fg Vliegenthart
- Glycan Symbol Nomenclature Discussion Group, 2014-2015 IUPAC Carbohydrate Nomenclature Committee Utrecht University, Utrecht, Netherlands
| | - Thomas Lütteke
- Glycan Symbol Nomenclature Discussion Group, 2014-2015 IUPAC Carbohydrate Nomenclature Committee Curator, MonosaccharideDB Justus-Liebig-University Giessen, Giessen, Germany
| | - Serge Perez
- Glycan Symbol Nomenclature Discussion Group, 2014-2015 Curator, Glycopedia CNRS-University Grenoble Alpes, Saint-Martin-d'Hères, France
| | - Evan Bolton
- Glycan Symbol Nomenclature Discussion Group, 2014-2015 Lead Scientist, PubChem, National Center for Biotechnology Information National Library of Medicine, Bethesda, MD, USA
| | - Pauline Rudd
- Oxford Glycobiology Institute National Institute for Bioprocessing, Research and Training, Dublin, Ireland
| | - James Paulson
- Past Chair, Consortium for Functional Glycomics The Scripps Research Institute La Jolla, La Jolla, CA, USA
| | - Minoru Kanehisa
- Principal Investigator, KEGG Database Kyoto University, Kyoto, Japan
| | - Philip Toukach
- Glycan Symbol Nomenclature Discussion Group, 2014-2015 Curator, Carbohydrate Structure Database (CSDB) Zelinsky Institute of Organic Chemistry, Moscow, Russia
| | | | | | - Hisashi Narimatsu
- National Institute of Advanced Industrial Science and Technology, Tsukuba, Japan
| | | | | | - Stuart Kornfeld
- Washington University School of Medicine, St. Louis, MO, USA
| |
Collapse
|
20
|
Kubicek-Sutherland JZ, Heithoff DM, Ersoy SC, Shimp WR, House JK, Marth JD, Smith JW, Mahan MJ. Host-dependent Induction of Transient Antibiotic Resistance: A Prelude to Treatment Failure. EBioMedicine 2015; 2:1169-78. [PMID: 26501114 PMCID: PMC4588393 DOI: 10.1016/j.ebiom.2015.08.012] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [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] [Received: 06/02/2015] [Revised: 07/31/2015] [Accepted: 08/05/2015] [Indexed: 01/03/2023] Open
Abstract
Current antibiotic testing does not include the potential influence of host cell environment on microbial susceptibility and antibiotic resistance, hindering appropriate therapeutic intervention. We devised a strategy to identify the presence of host–pathogen interactions that alter antibiotic efficacy in vivo. Our findings revealed a bacterial mechanism that promotes antibiotic resistance in vivo at concentrations of drug that far exceed dosages determined by standardized antimicrobial testing. This mechanism has escaped prior detection because it is reversible and operates within a subset of host tissues and cells. Bacterial pathogens are thereby protected while their survival promotes the emergence of permanent drug resistance. This host-dependent mechanism of transient antibiotic resistance is applicable to multiple pathogens and has implications for the development of more effective antimicrobial therapies. Standard MIC testing does not consider the influence of the host milieu, potentially hindering therapeutic intervention. Salmonella induce polymyxin resistance during infection at levels of drug that far exceed dosages determined by MIC testing. Polymyxin treatment failed to control Salmonella infection and promotes the emergence of drug-resistant mutants.
Physicians rely on laboratory antimicrobial susceptibility testing of clinical isolates to identify a suitable antibiotic for therapy. Although the recommended antibiotics clear most bacterial infections, some patients fail to respond and require prolonged therapy, higher dosing or different antibiotics. Why does this occur and what are the possible implications? By studying antibiotic resistance in the context of infection, we identified a host-dependent mechanism that promotes antibiotic resistance at concentrations of drug that far exceed dosages determined by standardized antimicrobial testing. These findings question current antibiotic testing methods that have guided physician treatment practices and drug development for the last several decades.
Collapse
Affiliation(s)
| | - Douglas M Heithoff
- Dept. of Molecular, Cellular and Developmental Biology, University of California, Santa Barbara, CA 93106, USA ; Center for Nanomedicine, University of California, Santa Barbara, CA 93106, USA
| | - Selvi C Ersoy
- Dept. of Molecular, Cellular and Developmental Biology, University of California, Santa Barbara, CA 93106, USA
| | - William R Shimp
- Dept. of Molecular, Cellular and Developmental Biology, University of California, Santa Barbara, CA 93106, USA
| | - John K House
- University of Sydney, Faculty of Veterinary Science, Camden, NSW, Australia
| | - Jamey D Marth
- Dept. of Molecular, Cellular and Developmental Biology, University of California, Santa Barbara, CA 93106, USA ; Center for Nanomedicine, University of California, Santa Barbara, CA 93106, USA ; Sanford-Burnham Medical Research Institute, Cancer Research Center, La Jolla, CA 92037, USA
| | - Jeffrey W Smith
- Sanford-Burnham Medical Research Institute, Cancer Research Center, La Jolla, CA 92037, USA
| | - Michael J Mahan
- Dept. of Molecular, Cellular and Developmental Biology, University of California, Santa Barbara, CA 93106, USA ; Center for Nanomedicine, University of California, Santa Barbara, CA 93106, USA
| |
Collapse
|
21
|
Döring Y, Noels H, Mandl M, Kramp B, Neideck C, Lievens D, Drechsler M, Megens RTA, Tilstam PV, Langer M, Hartwig H, Theelen W, Marth JD, Sperandio M, Soehnlein O, Weber C. Deficiency of the sialyltransferase St3Gal4 reduces Ccl5-mediated myeloid cell recruitment and arrest: short communication. Circ Res 2014; 114:976-81. [PMID: 24425712 DOI: 10.1161/circresaha.114.302426] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [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: 12/24/2022]
Abstract
RATIONALE Sialylation by α2,3-sialyltransferases has been shown to be a crucial glycosylation step in the generation of functional selectin ligands. Recent evidence suggests that sialylation also affects the binding of chemokines to their corresponding receptor. OBJECTIVE Because the chemokine receptors for Ccl5 and Ccl2 are important in atherogenic recruitment of neutrophils and monocytes, we here investigated the role of α2,3-sialyltransferase IV (ST3Gal-IV) in Ccl5- and Ccl2-mediated myeloid cell arrest and further studied its relevance in a mouse model of atherosclerosis. METHODS AND RESULTS St3Gal4-deficient myeloid cells showed a reduced binding of Ccl5 and an impaired Ccl5-triggered integrin activation. Correspondingly, Ccl5-induced arrest on tumor necrosis factor-α-stimulated endothelium was almost completely abrogated, as observed in flow chamber adhesion assays and during ex vivo perfusion or intravital microscopy of carotid arteries. Moreover, Ccl5-triggered neutrophil and monocyte extravasation into the peritoneal cavity was severely reduced in St3Gal4(-/-) mice. In contrast, St3Gal4 deficiency did not significantly affect Ccl2 binding and only marginally decreased Ccl2-induced flow arrest of myeloid cells. In agreement with the crucial role of leukocyte accumulation in atherogenesis, and the importance of Ccl5 chemokine receptors mediating myeloid cell recruitment to atherosclerotic vessels, St3Gal4 deficiency drastically reduced the size, stage, and inflammatory cell content of atherosclerotic lesions in Apoe(-/-) mice on high-fat diet. CONCLUSIONS In summary, these findings identify ST3Gal-IV as a promising target to reduce inflammatory leukocyte recruitment and arrest.
Collapse
Affiliation(s)
- Yvonne Döring
- From Institute for Cardiovascular Prevention (Y.D., M.M., B.K., C.N., D.L., M.D., R.T.A.M., M.L., H.H., O.S., C.W.), and Walter Brendel Centre of Experimental Medicine (M.S.), Ludwig-Maximilians University, Munich, Germany; Institute for Molecular Cardiovascular Research, RWTH Aachen University, Aachen, Germany (H.N., P.V.T., W.T.); Center for Nanomedicine, Sanford-Burnham Medical Research Institute, University of California, Santa Barbara, CA (J.D.M.); DZHK (German Centre for Cardiovascular Research), partner site Munich Heart Alliance, Munich, Germany (M.S., O.S., C.W.); Academic Medical Center, Amsterdam, the Netherlands (O.S.); and Cardiovascular Research Institute Maastricht, Maastricht, the Netherlands (R.T.A.M., C.W.)
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
22
|
Cho M, Oh SS, Nie J, Stewart R, Eisenstein M, Chambers J, Marth JD, Thomson JA, Soh TH. Abstract 2227: Aptamer selection for cancer markers: High-throughput, quantitative selection and characterization of nucleic acid aptamers for human angiopoietin-2. Cancer Res 2013. [DOI: 10.1158/1538-7445.am2013-2227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Abstract
Nucleic acid-based aptamers represent a promising class of affinity reagents, as they can be chemically synthesized and modified, undergo reversible folding and exhibit excellent stability. Thus, the identification of aptamers that bind to specific cancer markers may serve as a powerful tool for early diagnosis and treatments of cancers. Unfortunately, conventional methods of aptamer generation remain inherently low-throughput in nature, and there is a pressing need for alternative technologies that can generate high quality aptamers in a high-throughput and economical manner.
Towards the goal of accelerating aptamer discovery, we have developed the Quantitative Parallel Aptamer Selection System (QPASS) - an integrated platform that combines microfluidic selection, next-generation sequencing and in situ-synthesized aptamer arrays for parallel binding measurements. As a model, we used QPASS to select aptamers that specifically bind to human angiopoietin-2, an important mediator of angiogenesis and a biomarker of colon, prostate and breast cancers; after microfluidic selection and sequencing, we fabricated a custom aptamer array containing 120,000 sequences representing the most enriched aptamer candidates. Using this array, we simultaneously obtained equilibrium dissociation constants (Kd) and binding specificity data for these candidate aptamers in a massively parallel manner. Furthermore, we show that our array can operate directly in undiluted serum, enabling rapid identification of aptamers that perform optimally in complex mixtures. By exploiting the scalability and commercial availability of high-throughput sequencing and nucleic acid arrays, the QPASS platform offers the capability to simultaneously analyze and characterize unprecedented numbers of aptamer candidates—either against a common cancer marker, or for screening in parallel against multiple different biomarkers.
Citation Format: Minseon Cho, Seung Soo Oh, Jeff Nie, Ron Stewart, Michael Eisenstein, James Chambers, Jamey D. Marth, James A. Thomson, Tom H. Soh. Aptamer selection for cancer markers: High-throughput, quantitative selection and characterization of nucleic acid aptamers for human angiopoietin-2. [abstract]. In: Proceedings of the 104th Annual Meeting of the American Association for Cancer Research; 2013 Apr 6-10; Washington, DC. Philadelphia (PA): AACR; Cancer Res 2013;73(8 Suppl):Abstract nr 2227. doi:10.1158/1538-7445.AM2013-2227
Collapse
Affiliation(s)
| | | | - Jeff Nie
- 2Morgridge Institute for Research, Madison, WI
| | - Ron Stewart
- 2Morgridge Institute for Research, Madison, WI
| | | | | | | | | | | |
Collapse
|
23
|
Luni C, Marth JD, Doyle FJ. Computational modeling of glucose transport in pancreatic β-cells identifies metabolic thresholds and therapeutic targets in diabetes. PLoS One 2012; 7:e53130. [PMID: 23300881 PMCID: PMC3531366 DOI: 10.1371/journal.pone.0053130] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2012] [Accepted: 11/23/2012] [Indexed: 11/18/2022] Open
Abstract
Pancreatic β-cell dysfunction is a diagnostic criterion of Type 2 diabetes and includes defects in glucose transport and insulin secretion. In healthy individuals, β-cells maintain plasma glucose concentrations within a narrow range in concert with insulin action among multiple tissues. Postprandial elevations in blood glucose facilitate glucose uptake into β-cells by diffusion through glucose transporters residing at the plasma membrane. Glucose transport is essential for glycolysis and glucose-stimulated insulin secretion. In human Type 2 diabetes and in the mouse model of obesity-associated diabetes, a marked deficiency of β-cell glucose transporters and glucose uptake occurs with the loss of glucose-stimulated insulin secretion. Recent studies have shown that the preservation of glucose transport in β-cells maintains normal insulin secretion and blocks the development of obesity-associated diabetes. To further elucidate the underlying mechanisms, we have constructed a computational model of human β-cell glucose transport in health and in Type 2 diabetes, and present a systems analysis based on experimental results from human and animal studies. Our findings identify a metabolic threshold or "tipping point" whereby diminished glucose transport across the plasma membrane of β-cells limits intracellular glucose-6-phosphate production by glucokinase. This metabolic threshold is crossed in Type 2 diabetes and results in β-cell dysfunction including the loss of glucose stimulated insulin secretion. Our model further discriminates among molecular control points in this pathway wherein maximal therapeutic intervention is achieved.
Collapse
Affiliation(s)
- Camilla Luni
- Department of Chemical Engineering, University of California Santa Barbara, Santa Barbara, California, United States of America
- Sansum Diabetes Research Institute, Santa Barbara, California, United States of America
| | - Jamey D. Marth
- Center for Nanomedicine, Sanford-Burnham Medical Research Institute and the Department of Molecular, Cellular and Developmental Biology, University of California Santa Barbara, Santa Barbara, California, United States of America
| | - Francis J. Doyle
- Department of Chemical Engineering, University of California Santa Barbara, Santa Barbara, California, United States of America
- Sansum Diabetes Research Institute, Santa Barbara, California, United States of America
- * E-mail:
| |
Collapse
|
24
|
Orr SL, Le D, Long JM, Sobieszczuk P, Ma B, Tian H, Fang X, Paulson JC, Marth JD, Varki N. A phenotype survey of 36 mutant mouse strains with gene-targeted defects in glycosyltransferases or glycan-binding proteins. Glycobiology 2012; 23:363-80. [PMID: 23118208 DOI: 10.1093/glycob/cws150] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
The consortium for functional glycomics (CFG) was a large research initiative providing networking and resources for investigators studying the role of glycans and glycan-binding proteins in health and disease. Starting in 2001, six scientific cores were established to generate data, materials and new technologies. By the end of funding in 2011, the mouse phenotype core (MPC) submitted data to a website from the phenotype screen of 36 mutant mouse strains deficient in a gene for either a glycan-binding protein (GBP) or glycosyltransferase (GT). Each mutant strain was allotted three months for analysis and screened by standard phenotype assays used in the fields of immunology, histology, hematology, coagulation, serum chemistry, metabolism and behavior. Twenty of the deficient mouse strains had been studied in other laboratories, and additional tests were performed on these strains to confirm previous observations and discover new data. The CFG constructed 16 new homozygous mutant mouse strains and completed the initial phenotype screen of the majority of these new mutant strains. In total, >300 phenotype changes were observed, but considering the over 100 assays performed on each strain, most of the phenotypes were unchanged. Phenotype differences include abnormal testis morphology in GlcNAcT9- and Siglec-H-deficient mice and lethality in Pomgnt1-deficient mice. The numerous altered phenotypes discovered, along with the consideration of the significant findings of normality, will provide a platform for future characterization to understand the important roles of glycans and GBPs in the mechanisms of health and disease.
Collapse
Affiliation(s)
- Sally L Orr
- Department of Pathology, University of California, San Diego, La Jolla, CA 92093-0687, USA
| | | | | | | | | | | | | | | | | | | |
Collapse
|
25
|
Sturgill ER, Aoki K, Lopez PHH, Colacurcio D, Vajn K, Lorenzini I, Majić S, Yang WH, Heffer M, Tiemeyer M, Marth JD, Schnaar RL. Biosynthesis of the major brain gangliosides GD1a and GT1b. Glycobiology 2012; 22:1289-301. [PMID: 22735313 DOI: 10.1093/glycob/cws103] [Citation(s) in RCA: 90] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
Gangliosides-sialylated glycosphingolipids-are the major glycoconjugates of nerve cells. The same four structures-GM1, GD1a, GD1b and GT1b-comprise the great majority of gangliosides in mammalian brains. They share a common tetrasaccharide core (Galβ1-3GalNAcβ1-4Galβ1-4Glcβ1-1'Cer) with one or two sialic acids on the internal galactose and zero (GM1 and GD1b) or one (GD1a and GT1b) α2-3-linked sialic acid on the terminal galactose. Whereas the genes responsible for the sialylation of the internal galactose are known, those responsible for terminal sialylation have not been established in vivo. We report that St3gal2 and St3gal3 are responsible for nearly all the terminal sialylation of brain gangliosides in the mouse. When brain ganglioside expression was analyzed in adult St3gal1-, St3gal2-, St3gal3- and St3gal4-null mice, only St3gal2-null mice differed significantly from wild type, expressing half the normal amount of GD1a and GT1b. St3gal1/2-double-null mice were no different than St3gal2-single-null mice; however, St3gal2/3-double-null mice were >95% depleted in gangliosides GD1a and GT1b. Total ganglioside expression (lipid-bound sialic acid) in the brains of St3gal2/3-double-null mice was equivalent to that in wild-type mice, whereas total protein sialylation was reduced by half. St3gal2/3-double-null mice were small, weak and short lived. They were half the weight of wild-type mice at weaning and displayed early hindlimb dysreflexia. We conclude that the St3gal2 and St3gal3 gene products (ST3Gal-II and ST3Gal-III sialyltransferases) are largely responsible for ganglioside terminal α2-3 sialylation in the brain, synthesizing the major brain gangliosides GD1a and GT1b.
Collapse
Affiliation(s)
- Elizabeth R Sturgill
- Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
26
|
Ohtsubo K, Chen MZ, Olefsky JM, Marth JD. Pathway to diabetes through attenuation of pancreatic beta cell glycosylation and glucose transport. Nat Med 2011; 17:1067-75. [PMID: 21841783 DOI: 10.1038/nm.2414] [Citation(s) in RCA: 178] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2011] [Accepted: 06/07/2011] [Indexed: 12/24/2022]
Abstract
A connection between diet, obesity and diabetes exists in multiple species and is the basis of an escalating human health problem. The factors responsible provoke both insulin resistance and pancreatic beta cell dysfunction but remain to be fully identified. We report a combination of molecular events in human and mouse pancreatic beta cells, induced by elevated levels of free fatty acids or by administration of a high-fat diet with associated obesity, that comprise a pathogenic pathway to diabetes. Elevated concentrations of free fatty acids caused nuclear exclusion and reduced expression of the transcription factors FOXA2 and HNF1A in beta cells. This resulted in a deficit of GnT-4a glycosyltransferase expression in beta cells that produced signs of metabolic disease, including hyperglycemia, impaired glucose tolerance, hyperinsulinemia, hepatic steatosis and diminished insulin action in muscle and adipose tissues. Protection from disease was conferred by enforced beta cell-specific GnT-4a protein glycosylation and involved the maintenance of glucose transporter expression and the preservation of glucose transport. We observed that this pathogenic process was active in human islet cells obtained from donors with type 2 diabetes; thus, illuminating a pathway to disease implicated in the diet- and obesity-associated component of type 2 diabetes mellitus.
Collapse
Affiliation(s)
- Kazuaki Ohtsubo
- Center for Nanomedicine, Sanford-Burnham Medical Research Institute, University of California-Santa Barbara, Santa Barbara, California, USA
| | | | | | | |
Collapse
|
27
|
Ismail MN, Stone EL, Panico M, Lee SH, Luu Y, Ramirez K, Ho SB, Fukuda M, Marth JD, Haslam SM, Dell A. High-sensitivity O-glycomic analysis of mice deficient in core 2 {beta}1,6-N-acetylglucosaminyltransferases. Glycobiology 2010; 21:82-98. [PMID: 20855471 DOI: 10.1093/glycob/cwq134] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Core 2 β1,6-N-acetylglucosaminyltransferase (C2GnT), which exists in three isoforms, C2GnT1, C2GnT2 and C2GnT3, is one of the key enzymes in the O-glycan biosynthetic pathway. These isoenzymes produce core 2 O-glycans and have been correlated with the biosynthesis of core 4 O-glycans and I-branches. Previously, we have reported mice with single and multiple deficiencies of C2GnT isoenzyme(s) and have evaluated the biological and structural consequences of the loss of core 2 function. We now present more comprehensive O-glycomic analyses of neutral and sialylated glycans expressed in the colon, small intestine, stomach, kidney, thyroid/trachea and thymus of wild-type, C2GnT2 and C2GnT3 single knockouts and the C2GnT1-3 triple knockout mice. Very high-quality data have emerged from our mass spectrometry techniques with the capability of detecting O-glycans up to at least 3500 Da. We were able to unambiguously elucidate the types of O-glycan core, branching location and residue linkages, which allowed us to exhaustively characterize structural changes in the knockout tissues. The C2GnT2 knockout mice suffered a major loss of core 2 O-glycans as well as glycans with I-branches on core 1 antennae especially in the stomach and the colon. In contrast, core 2 O-glycans still dominated the O-glycomic profile of most tissues in the C2GnT3 knockout mice. Analysis of the C2GnT triple knockout mice revealed a complete loss of both core 2 O-glycans and branched core 1 antennae, confirming that the three known isoenzymes are entirely responsible for producing these structures. Unexpectedly, O-linked mannosyl glycans are upregulated in the triple deficient stomach. In addition, our studies have revealed an interesting terminal structure detected on O-glycans of the colon tissues that is similar to the RM2 antigen from glycolipids.
Collapse
Affiliation(s)
- Mohd Nazri Ismail
- Division of Molecular Biosciences, Faculty of Natural Sciences, Imperial College London, London, UK
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
28
|
Lee SH, Yu SY, Nakayama J, Khoo KH, Stone EL, Fukuda MN, Marth JD, Fukuda M. Core2 O-glycan structure is essential for the cell surface expression of sucrase isomaltase and dipeptidyl peptidase-IV during intestinal cell differentiation. J Biol Chem 2010; 285:37683-92. [PMID: 20841351 DOI: 10.1074/jbc.m110.162735] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
Alterations in glycosylation play an important role during intestinal cell differentiation. Here, we compared expression of mucin-type O-glycan synthases from proliferating and differentiated HT-29 and Caco-2 cells. Mucin-type O-glycan structures were analyzed at both stages by mass spectrometry. Core2 β1,6-N-acetylglucosaminyltransferase-2 (C2GnT-2) was markedly increased in differentiated HT-29 and Caco-2 cells, but the core3 structure was hardly detectable. To determine whether such differential expression of mucin-type O-glycan structures has physiological significance in intestinal cell differentiation, expression of sucrase isomaltase (SI) and dipeptidyl-peptidase IV (DPP-IV), two well known intestinal differentiation markers, was examined. Interestingly, the fully glycosylated mature form of SI was decreased in C2GnT-2 knock-out mice but not in core2 N-acetylglucosaminyltransferase-3 (C2GnT-3) nulls. In addition, expression of SI and DPP-IV was dramatically reduced in C2GnT-1-3 triple knock-out mice. These patterns were confirmed by RNAi analysis; C2GnT-2 knockdown significantly reduced cell surface expression of SI and DPP-IV in Caco-2 cells. Similarly, overexpression of the core3 structure in HT-29 cells attenuated cell surface expression of both enzymes. These findings indicate that core3 O-glycan structure regulates cell surface expression of SI and DPP-IV and that core2 O-glycan is presumably an essential mucin-type O-glycan structure found in both molecules in vivo. Finally, goblet cells in the upper part of the crypt showed impaired maturation in the core2 O-glycan-deficient mice. These studies are the first to clearly identify functional mucin-type O-glycan structures modulating cell surface expression of SI and DPP-IV during the intestinal cell differentiation.
Collapse
Affiliation(s)
- Seung Ho Lee
- Glycobiology Unit, Cancer Center, Sanford-Burnham Medical Research Institute, La Jolla, California 92037, USA
| | | | | | | | | | | | | | | |
Collapse
|
29
|
Varki A, Cummings RD, Esko JD, Freeze HH, Stanley P, Marth JD, Bertozzi CR, Hart GW, Etzler ME. Symbol nomenclature for glycan representation. Proteomics 2010; 9:5398-9. [PMID: 19902428 DOI: 10.1002/pmic.200900708] [Citation(s) in RCA: 144] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The glycan symbol nomenclature proposed by Harvey et al. in these pages has relative advantages and disadvantages. The use of symbols to depict glycans originated from Kornfeld in 1978, was systematized in the First Edition of "Essentials of Glycobiology" and updated for the second edition, with input from relevant organizations such as the Consortium for Functional Glycomics. We also note that >200 illustrations in the second edition have already been published using our nomenclature and are available for download at PubMed.
Collapse
Affiliation(s)
- Ajit Varki
- Glycobiology Research and Training Center, University of California, San Diego, La Jolla, CA 92093-0687, USA.
| | | | | | | | | | | | | | | | | |
Collapse
|
30
|
Kitazume S, Imamaki R, Ogawa K, Komi Y, Futakawa S, Kojima S, Hashimoto Y, Marth JD, Paulson JC, Taniguchi N. Alpha2,6-sialic acid on platelet endothelial cell adhesion molecule (PECAM) regulates its homophilic interactions and downstream antiapoptotic signaling. J Biol Chem 2010; 285:6515-21. [PMID: 20048157 PMCID: PMC2825447 DOI: 10.1074/jbc.m109.073106] [Citation(s) in RCA: 87] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Antiangiogenesis therapies are now part of the standard repertoire of cancer therapies, but the mechanisms for the proliferation and survival of endothelial cells are not fully understood. Although endothelial cells are covered with a glycocalyx, little is known about how endothelial glycosylation regulates endothelial functions. Here, we show that alpha2,6-sialic acid is necessary for the cell-surface residency of platelet endothelial cell adhesion molecule (PECAM), a member of the immunoglobulin superfamily that plays multiple roles in cell adhesion, mechanical stress sensing, antiapoptosis, and angiogenesis. As a possible underlying mechanism, we found that the homophilic interactions of PECAM in endothelial cells were dependent on alpha2,6-sialic acid. We also found that the absence of alpha2,6-sialic acid down-regulated the tyrosine phosphorylation of PECAM and recruitment of Src homology 2 domain-containing protein-tyrosine phosphatase 2 and rendered the cells more prone to mitochondrion-dependent apoptosis, as evaluated using PECAM- deficient endothelial cells. The present findings open up a new possibility that modulation of glycosylation could be one of the promising strategies for regulating angiogenesis.
Collapse
Affiliation(s)
- Shinobu Kitazume
- Disease Glycomics Team, RIKEN Advanced Science Institute, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | | | | | | | | | | | | | | | | | | |
Collapse
|
31
|
Takamatsu S, Antonopoulos A, Ohtsubo K, Ditto D, Chiba Y, Le DT, Morris HR, Haslam SM, Dell A, Marth JD, Taniguchi N. Physiological and glycomic characterization of N-acetylglucosaminyltransferase-IVa and -IVb double deficient mice. Glycobiology 2009; 20:485-97. [PMID: 20015870 DOI: 10.1093/glycob/cwp200] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
N-Acetylglucosaminyltransferase-IV (GnT-IV) has two isoenzymes, GnT-IVa and GnT-IVb, which initiate the GlcNAcbeta1-4 branch synthesis on the Manalpha1-3 arm of the N-glycan core thereby increasing N-glycan branch complexity and conferring endogenous lectin binding epitopes. To elucidate the physiological significance of GnT-IV, we engineered and characterized GnT-IVb-deficient mice and further generated GnT-IVa/-IVb double deficient mice. In wild-type mice, GnT-IVa expression is restricted to gastrointestinal tissues, whereas GnT-IVb is broadly expressed among organs. GnT-IVb deficiency induced aberrant GnT-IVa expression corresponding to the GnT-IVb distribution pattern that might be attributed to increased Ets-1, which conceivably activates the Mgat4a promoter, and thereafter preserved apparent GnT-IV activity. The compensative GnT-IVa expression might contribute to amelioration of the GnT-IVb-deficient phenotype. GnT-IVb deficiency showed mild phenotypic alterations in hematopoietic cell populations and hemostasis. GnT-IVa/-IVb double deficiency completely abolished GnT-IV activity that resulted in the disappearance of the GlcNAcbeta1-4 branch on the Manalpha1-3 arm that was confirmed by MALDI-TOF MS and GC-MS linkage analyses. Comprehensive glycomic analyses revealed that the abundance of terminal moieties was preserved in GnT-IVa/-IVb double deficiency that was due to the elevated expression of glycosyltransferases regarding synthesis of terminal moieties. Thereby, this may maintain the expression of glycan ligands for endogenous lectins and prevent cellular dysfunctions. The fact that the phenotype of GnT-IVa/-IVb double deficiency largely overlapped that of GnT-IVa single deficiency can be attributed to the induced glycomic compensation. This is the first report that mammalian organs have highly organized glycomic compensation systems to preserve N-glycan branch complexity.
Collapse
Affiliation(s)
- Shinji Takamatsu
- Department of Disease Glycomics, The institute of Scientific and Industrial Research, Osaka University, 8-1 Mihogaoka, Ibaraki, 567-0041, Japan
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
32
|
Rumjantseva V, Grewal PK, Wandall HH, Josefsson EC, Sørensen AL, Larson G, Marth JD, Hartwig JH, Hoffmeister KM. Dual roles for hepatic lectin receptors in the clearance of chilled platelets. Nat Med 2009; 15:1273-80. [PMID: 19783995 PMCID: PMC4428152 DOI: 10.1038/nm.2030] [Citation(s) in RCA: 169] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2009] [Accepted: 08/19/2009] [Indexed: 11/16/2022]
Abstract
Chilling rapidly (<4 h) clusters Glycoprotein - (GP)Ib receptors on blood platelets, and ß2-integrins of hepatic macrophages bind ßGlcNAc residues in the clusters leading to rapid clearance of acutely chilled platelets following transfusion. Although capping the ßGlcNAc moieties by galactosylation prevents clearance, this strategy is ineffective after prolonged (>24 h) refrigeration. We report here that prolonged refrigeration increases the density/concentration of exposed galactose residues such that hepatocytes become increasingly involved in the removal of platelets using their Ashwell-Morell receptors. Macrophages always rapidly remove a large fraction of transfused platelets (~40%). With platelet cooling, hepatocyte-dependent clearance further diminishes their recoveries following transfusion.
Collapse
|
33
|
Wang H, Zhang W, Tang R, Hebbel RP, Kowalska MA, Zhang C, Marth JD, Fukuda M, Zhu C, Huo Y. Core2 1-6-N-glucosaminyltransferase-I deficiency protects injured arteries from neointima formation in ApoE-deficient mice. Arterioscler Thromb Vasc Biol 2009; 29:1053-9. [PMID: 19372458 DOI: 10.1161/atvbaha.109.187716] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
OBJECTIVE Core2 1 to 6-N-glucosaminyltransferase-I (C2GlcNAcT-I) plays an important role in optimizing the binding functions of several selectin ligands, including P-selectin glycoprotein ligand. We used apolipoprotein E (ApoE)-deficient atherosclerotic mice to investigate the role of C2GlcNAcT-I in platelet and leukocyte interactions with injured arterial walls, in endothelial regeneration at injured sites, and in the formation of arterial neointima. METHODS AND RESULTS Arterial neointima induced by wire injury was smaller in C2GlcNAcT-I-deficient apoE(-/-) mice than in control apoE(-/-) mice (a 79% reduction in size). Compared to controls, apoE(-/-) mice deficient in C2GlcNAcT-I also demonstrated less leukocyte adhesion on activated platelets in microflow chambers (a 75% reduction), and accumulation of leukocytes at injured areas of mouse carotid arteries was eliminated. Additionally, endothelial regeneration in injured lumenal areas was substantially faster in C2GlcNAcT-I-deficient apoE(-/-) mice than in control apoE(-/-) mice. Endothelial regeneration was associated with reduced accumulation of platelet factor 4 (PF4) at injured sites. PF4 deficiency accelerated endothelial regeneration and protected mice from neointima formation after arterial injury. CONCLUSIONS C2GlcNAcT-I deficiency suppresses injury-induced arterial neointima formation, and this effect is attributable to decreased leukocyte recruitment to injured vascular walls and increased endothelial regeneration. Both C2GlcNAcT-I and PF4 are promising targets for the treatment of arterial restenosis.
Collapse
Affiliation(s)
- Huan Wang
- Department of Medicine, University of Minnesota, Minneapolis, MN 55455, USA
| | | | | | | | | | | | | | | | | | | |
Collapse
|
34
|
Mueller H, Tenno M, Van Aken H, Marth JD, Ley K, Zarbock A. Severe impairment of leukocyte recruitment into inflamed tissue of ppGalNAcT1-deficient mice (94.1). The Journal of Immunology 2009. [DOI: 10.4049/jimmunol.182.supp.94.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Abstract
P-selectin glycoprotein ligand-1 (PSGL-1) plays an important role in leukocyte recruitment. Its binding affinity to selectins is modulated by posttranslational modifications. The polypeptide N-acetylgalactosamine transferase-1 (ppGalNAcT1) initiates core-type protein O-glycosylation. To address whether the glycosylation of PSGL-1 by ppGalNAcT1 is important for leukocyte recruitment, we investigated leukocyte rolling and velocity in untreated and TNF-α treated cremaster muscles and autoperfused flow chambers comparing ppGalNAcT1-/-(Galnt1-/-) with WT mice. In untreated and TNF-α treated Galnt1-/- mice, leukocyte rolling was significantly reduced with markedly increased rolling velocity compared to control mice. Flow chamber experiments showed that Galnt1-/-- and WT-neutrophils had the same rolling velocity on E-selectin, but the rolling velocity of Galnt1-/--neutrophils on E-selectin/ICAM-1 was significantly elevated, suggesting that E-selectin-dependent neutrophil activation may be defective. Thioglycollate-induced peritonitis experiments with chimeric mice revealed that hematopoietic ppGalNAcT1 is important for leukocyte recruitment. These data show that the loss of ppGalNAcT1 led to reduced leukocyte rolling and recruitment and increased rolling velocity, suggesting a predominant role of ppGalNAcT1 in attaching functionally relevant O-linked glycans to PSGL-1.
Collapse
Affiliation(s)
- Helena Mueller
- 1Department of Anesthesiology and Intensive Care Medicine, University of Muenster, Muenster, Germany
| | - Mari Tenno
- 2Howard Hughes Medical Institute and Department of Cellular and Molecular Medicine, University of California San Diego, La Jolla, California
| | - Hugo Van Aken
- 1Department of Anesthesiology and Intensive Care Medicine, University of Muenster, Muenster, Germany
| | - Jamey D. Marth
- 2Howard Hughes Medical Institute and Department of Cellular and Molecular Medicine, University of California San Diego, La Jolla, California
| | - Klaus Ley
- 3La Jolla Institute for Allergy and Immunology, La Jolla, California
| | - Alexander Zarbock
- 1Department of Anesthesiology and Intensive Care Medicine, University of Muenster, Muenster, Germany
- 3La Jolla Institute for Allergy and Immunology, La Jolla, California
| |
Collapse
|
35
|
Wang H, Tang R, Zhang W, Amirikian K, Geng Z, Geng J, Hebbel RP, Xia L, Marth JD, Fukuda M, Katoh S, Huo Y. Core2 1-6-N-glucosaminyltransferase-I is crucial for the formation of atherosclerotic lesions in apolipoprotein E-deficient mice. Arterioscler Thromb Vasc Biol 2008; 29:180-7. [PMID: 19057022 DOI: 10.1161/atvbaha.108.170969] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
OBJECTIVE Core2 1-6-N-glucosaminyltransferase-I (C2GlcNAcT-I) modification of adhesion molecules is required for optimal binding to target ligands. The objective of this study was to determine the role of C2GlcNAcT-I in the recruitment of Ly-6C(hi) monocytes to atherosclerotic lesions and in lesion formation in mice. METHODS AND RESULTS In a whole-blood binding assay, Ly-6C(hi) monocytes and certain lymphocytes and natural killer cells from wild-type mice bound to P- and E-selectin. C2GlcNAcT-I deficiency abrogated leukocyte binding to P- and E-selectin in this assay as well as in an in vitro flow chamber assay. Moreover, C2GlcNAcT-I deficiency decreased Ly-6C(hi) monocyte interactions with atherosclerotic arteries under physiological flow conditions and also inhibited monocyte recruitment to the peritoneal cavity in mice challenged with thioglycollate. In apolipoprotein E-deficient (apoE(-/-)) mice, lack of C2GlcNAcT-I resulted in fewer and smaller atherosclerotic lesions in mouse aortas. Atherosclerosis was also suppressed in C2GlcNAcT-I(-/-)/apoE(-/-) chimeric mice transplanted with C2GlcNAcT-I(+/+) bone marrow cells. CONCLUSIONS C2GlcNAcT-I in both leukocytes and blood vessel wall cells contributes to leukocyte recruitment to the arterial wall. C2GlcNAcT-I deficiency leads to the formation of small, macrophage-poor, and collagen-rich atherosclerotic lesions.
Collapse
Affiliation(s)
- Huan Wang
- Department of Medicine, University of Minnesota, 420 Delaware St SE, MMC508, Minneapolis, MN 55455, USA
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
36
|
Frommhold D, Ludwig A, Bixel MG, Zarbock A, Babushkina I, Weissinger M, Cauwenberghs S, Ellies LG, Marth JD, Beck-Sickinger AG, Sixt M, Lange-Sperandio B, Zernecke A, Brandt E, Weber C, Vestweber D, Ley K, Sperandio M. Sialyltransferase ST3Gal-IV controls CXCR2-mediated firm leukocyte arrest during inflammation. ACTA ACUST UNITED AC 2008; 205:1435-46. [PMID: 18519646 PMCID: PMC2413039 DOI: 10.1084/jem.20070846] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Recent in vitro studies have suggested a role for sialylation in chemokine receptor binding to its ligand (Bannert, N., S. Craig, M. Farzan, D. Sogah, N.V. Santo, H. Choe, and J. Sodroski. 2001. J. Exp. Med. 194:1661-1673). This prompted us to investigate chemokine-induced leukocyte adhesion in inflamed cremaster muscle venules of alpha2,3 sialyltransferase (ST3Gal-IV)-deficient mice. We found a marked reduction in leukocyte adhesion to inflamed microvessels upon injection of the CXCR2 ligands CXCL1 (keratinocyte-derived chemokine) or CXCL8 (interleukin 8). In addition, extravasation of ST3Gal-IV(-/-) neutrophils into thioglycollate-pretreated peritoneal cavities was significantly decreased. In vitro assays revealed that CXCL8 binding to isolated ST3Gal-IV(-/-) neutrophils was markedly impaired. Furthermore, CXCL1-mediated adhesion of ST3Gal-IV(-/-) leukocytes at physiological flow conditions, as well as transendothelial migration of ST3Gal-IV(-/-) leukocytes in response to CXCL1, was significantly reduced. In human neutrophils, enzymatic desialylation decreased binding of CXCR2 ligands to the neutrophil surface and diminished neutrophil degranulation in response to these chemokines. In addition, binding of alpha2,3-linked sialic acid-specific Maackia amurensis lectin II to purified CXCR2 from neuraminidase-treated CXCR2-transfected HEK293 cells was markedly impaired. Collectively, we provide substantial evidence that sialylation by ST3Gal-IV significantly contributes to CXCR2-mediated leukocyte adhesion during inflammation in vivo.
Collapse
Affiliation(s)
- David Frommhold
- Children's Hospital, University of Heidelberg, 69120 Heidelberg, Germany
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
37
|
Grewal PK, Uchiyama S, Ditto D, Varki N, Le DT, Nizet V, Marth JD. The Ashwell receptor mitigates the lethal coagulopathy of sepsis. Nat Med 2008; 14:648-55. [PMID: 18488037 PMCID: PMC2853759 DOI: 10.1038/nm1760] [Citation(s) in RCA: 276] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2008] [Accepted: 03/26/2008] [Indexed: 12/12/2022]
Abstract
The Ashwell receptor, the major lectin of hepatocytes, rapidly clears from blood circulation glycoproteins bearing glycan ligands that include galactose and N-acetylgalactosamine. This asialoglycoprotein receptor activity remains a key factor in the development and administration of glycoprotein pharmaceuticals, yet a biological purpose of the Ashwell receptor has remained elusive. We have identified endogenous ligands of the Ashwell receptor as glycoproteins and regulatory components in blood coagulation and thrombosis that include von Willebrand factor (vWF) and platelets. The Ashwell receptor normally modulates vWF homeostasis and is responsible for thrombocytopenia during systemic Streptococcus pneumoniae infection by eliminating platelets desialylated by the bacterium's neuraminidase. Hemostatic adaptation by the Ashwell receptor moderates the onset and severity of disseminated intravascular coagulation during sepsis and improves the probability of host survival.
Collapse
Affiliation(s)
- Prabhjit K Grewal
- The Howard Hughes Medical Institute and Department of Cellular and Molecular Medicine University of California, San Diego, La Jolla, California 92093, USA
| | | | | | | | | | | | | |
Collapse
|
38
|
Santos L, Draves KE, Boton M, Grewal PK, Marth JD, Clark EA. Dendritic cell-dependent inhibition of B cell proliferation requires CD22. J Immunol 2008; 180:4561-9. [PMID: 18354178 DOI: 10.4049/jimmunol.180.7.4561] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Recent studies have shown that dendritic cells (DCs) regulate B cell functions. In this study, we report that bone marrow (BM)-derived immature DCs, but not mature DCs, can inhibit BCR-induced proliferation of B cells in a contact-dependent manner. This inhibition is overcome by treatment with BAFF and is dependent on the BCR coreceptor CD22; however, it is not dependent on expression of the CD22 glycan ligand(s) produced by ST6Gal-I sialyltransferase. We found that a second CD22 ligand (CD22L) is expressed on CD11c(+) splenic and BM-derived DCs, which does not contain ST6Gal-I-generated sialic acids and which, unlike the B cell-associated CD22L, is resistant to neuraminidase treatment and sodium metaperiodate oxidation. Examination of splenic and BM B cell subsets in CD22 and ST6Gal-I knockout mice revealed that ST6Gal-I-generated B cell CD22L plays a role in splenic B cell development, whereas the maintenance of long-lived mature BM B cells depends only on CD22 and not on alpha2,6-sialic acids produced by ST6Gal-I. We propose that the two distinct CD22L have different functions. The alpha2,6-sialic acid-containing glycoprotein is important for splenic B cell subset development, whereas the DC-associated ST6Gal-I-independent CD22L may be required for the maintenance of long-lived mature B cells in the BM.
Collapse
Affiliation(s)
- Lorna Santos
- Department of Immunology, University of Washington, Seattle, WA 98195, USA
| | | | | | | | | | | |
Collapse
|
39
|
Tenno M, Ohtsubo K, Hagen FK, Ditto D, Zarbock A, Schaerli P, von Andrian UH, Ley K, Le D, Tabak LA, Marth JD. Initiation of protein O glycosylation by the polypeptide GalNAcT-1 in vascular biology and humoral immunity. Mol Cell Biol 2007; 27:8783-96. [PMID: 17923703 PMCID: PMC2169402 DOI: 10.1128/mcb.01204-07] [Citation(s) in RCA: 89] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2007] [Revised: 09/18/2007] [Accepted: 09/25/2007] [Indexed: 12/24/2022] Open
Abstract
Core-type protein O glycosylation is initiated by polypeptide N-acetylgalactosamine (GalNAc) transferase (ppGalNAcT) activity and produces the covalent linkage of serine and threonine residues of proteins. More than a dozen ppGalNAcTs operate within multicellular organisms, and they differ with respect to expression patterns and substrate selectivity. These distinctive features imply that each ppGalNAcT may differentially modulate regulatory processes in animal development, physiology, and perhaps disease. We found that ppGalNAcT-1 plays key roles in cell and glycoprotein selective functions that modulate the hematopoietic system. Loss of ppGalNAcT-1 activity in the mouse results in a bleeding disorder which tracks with reduced plasma levels of blood coagulation factors V, VII, VIII, IX, X, and XII. ppGalNAcT-1 further supports leukocyte trafficking and residency in normal homeostatic physiology as well as during inflammatory responses, in part by providing a scaffold for the synthesis of selectin ligands expressed by neutrophils and endothelial cells of peripheral lymph nodes. Animals lacking ppGalNAcT-1 are also markedly impaired in immunoglobulin G production, coincident with increased germinal center B-cell apoptosis and reduced levels of plasma B cells. These findings reveal that the initiation of protein O glycosylation by ppGalNAcT-1 provides a distinctive repertoire of advantageous functions that support vascular responses and humoral immunity.
Collapse
Affiliation(s)
- Mari Tenno
- Howard Hughes Medical Institute, University of California San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
40
|
Sugimoto I, Futakawa S, Oka R, Ogawa K, Marth JD, Miyoshi E, Taniguchi N, Hashimoto Y, Kitazume S. β-Galactoside α2,6-Sialyltransferase I Cleavage by BACE1 Enhances the Sialylation of Soluble Glycoproteins. J Biol Chem 2007; 282:34896-903. [PMID: 17897958 DOI: 10.1074/jbc.m704766200] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
BACE1 (beta-site amyloid precursor protein-cleaving enzyme-1) is a membrane-bound aspartic protease that cleaves amyloid precursor protein to produce a neurotoxic peptide, amyloid beta-peptide, and has been implicated in triggering the pathogenesis of Alzheimer disease. We showed previously that BACE1 cleaves beta-galactoside alpha2,6-sialyltransferase I (ST6Gal I) to initiate its secretion, but it remained unclear how BACE1 affects the cellular level of alpha2,6-sialylation. Here, we found that BACE1 overexpression in Hep3B cells increased the sialylation of soluble secreted glycoproteins, but did not affect cell-surface sialylation. The sialylation of soluble glycoproteins was not increased by ST6Gal I overexpression alone, but was increased by co-overexpression of ST6Gal I and BACE1 or by expression of the soluble form of ST6Gal I, suggesting that soluble ST6Gal I produced by BACE1 plays, at least in part, a role in the sialylation of soluble glycoproteins. We also found that plasma glycoproteins from BACE1-deficient mice exhibited reduced levels of alpha2,6-sialylation compared with those from wild-type mice. We propose a novel regulatory mechanism in which cleavage and secretion of ST6Gal I enhance the sialylation of soluble glycoprotein substrates.
Collapse
Affiliation(s)
- Ichiro Sugimoto
- Glyco-Chain Functions Laboratory, Institute of Physical and Chemical Research, RIKEN, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan
| | | | | | | | | | | | | | | | | |
Collapse
|
41
|
Angata K, Huckaby V, Ranscht B, Terskikh A, Marth JD, Fukuda M. Polysialic acid-directed migration and differentiation of neural precursors are essential for mouse brain development. Mol Cell Biol 2007; 27:6659-68. [PMID: 17682066 PMCID: PMC2099222 DOI: 10.1128/mcb.00205-07] [Citation(s) in RCA: 94] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Polysialic acid, which is synthesized by two polysialyltransferases, ST8SiaII and ST8SiaIV, plays an essential role in brain development by modifying the neural cell adhesion molecule (NCAM). It is currently unclear how polysialic acid functions in different processes of neural development. Here we generated mice doubly mutant in both ST8SiaII and ST8SiaIV to determine the effects of loss of polysialic acid on brain development. In contrast to NCAM-deficient, ST8SiaII-deficient, or ST8SiaIV-deficient single mutant mice, ST8SiaII and ST8SiaIV double mutants displayed severe defects in anatomical organization of the forebrain associated with apoptotic cell death. Loss of polysialic acid affected both tangential and radial migration of neural precursors during cortical development, resulting in aberrant positioning of neuronal and glial cells. Glial cell differentiation was aberrantly increased in vivo and in vitro in the absence of polysialic acid. Consistent with these findings, polysialic acid-deficient mice exhibited increased expression of the glial cell marker glial fibrillary acidic protein and a decrease in expression of Pax6, a transcription factor regulating neural cell migration. These results indicate that polysialic acid regulates cell migration and differentiation of neural precursors crucial for brain development.
Collapse
Affiliation(s)
- Kiyohiko Angata
- Glycobiology Program, Cancer Research Center, Burnham Institute for Medical Research, La Jolla, CA 92037, USA
| | | | | | | | | | | |
Collapse
|
42
|
Green RS, Stone EL, Tenno M, Lehtonen E, Farquhar MG, Marth JD. Mammalian N-glycan branching protects against innate immune self-recognition and inflammation in autoimmune disease pathogenesis. Immunity 2007; 27:308-20. [PMID: 17681821 DOI: 10.1016/j.immuni.2007.06.008] [Citation(s) in RCA: 99] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2007] [Revised: 06/07/2007] [Accepted: 06/12/2007] [Indexed: 10/23/2022]
Abstract
Autoimmune diseases are prevalent and often life-threatening syndromes, yet the pathogenic triggers and mechanisms involved remain mostly unresolved. Protein asparagine linked- (N-) glycosylation produces glycan structures that substantially differ among the extracellular compartments of evolutionarily divergent organisms. Alpha-mannosidase-II (alphaM-II) deficiency diminishes complex-type N-glycan branching in vertebrates and induces an autoimmune disease in mice similar to human systemic lupus erythematosus. We found that disease pathogenesis provoking glomerulonephritis and kidney failure was nonhematopoietic in origin, independent of complement C3 and the adaptive immune system, mitigated by intravenous administration of immunoglobulin-G, and linked to chronic activation of the innate immune system. N-glycans produced in alphaM-II deficiency bear immune-stimulatory mannose-dependent ligands for innate immune lectin receptors, disrupting the phylogenic basis of this glycomic recognition mechanism. Thus, mammalian N-glycan branching safeguards against the formation of an endogenous immunologic signal of nonself that can provoke a sterile inflammatory response in the pathogenesis of autoimmune disease.
Collapse
Affiliation(s)
- Ryan S Green
- Department of Cellular and Molecular Medicine, University of California, San Diego, La Jolla, CA 92093, USA
| | | | | | | | | | | |
Collapse
|
43
|
Abstract
During T-cell development and activation, dramatic changes occur in glycan structures that decorate cell-surface glycoproteins. These changes have been considered to be general cellular events that affect many glycans on many glycoproteins. For example, loss of sialic acid from core 1 O-glycans on T-cell surface glycoproteins CD45, CD43 and CD8, detected with peanut agglutinin (PNA), is a hallmark of immature thymocytes and activated peripheral T cells. Loss of cell-surface sialic acid during T-cell activation has been proposed to enhance TCR reactivity with antigen. However, CD4 T-cell activation also results in increased binding of the CZ-1 antibody that recognizes a sialic acid-containing epitope on CD45RB. This indicates that increased sialylation of the CZ-1 epitope occurs during CD4 T cell activation, and that loss of cell surface sialic acid during T-cell activation is a selective event rather than affecting all cell surface glycans. As specific glycans on specific glycoprotein backbones control critical events in T-cell maturation and survival, understanding mechanisms of selective glycoprotein glycosylation is important for regulating T-cell development and function. We define the sialylated O-glycan epitope recognized by CZ-1, and find that, paradoxically, CZ-1 and PNA binding are simultaneously increased on activated CD4(+) T cells, demonstrating site-specific changes in CD45 sialylation. Moreover, we identify ST3Gal I as the sialyltransferase responsible for creating the CZ-1 epitope. Thus, changes in glycan structure during T-cell activation are microheterogeneous and unique to individual glycans on specific glycoproteins, implying that these glycans have precise functions in T-cell biology.
Collapse
Affiliation(s)
- Joseph D Hernandez
- Department of Pathology and Laboratory Medicine, UCLA School of Medicine, 10833 LeConte Avenue, Los Angeles, CA 90095, USA
| | | | | | | | | |
Collapse
|
44
|
Ohtsubo K, Marth JD. Conditional mutagenesis of the genome using site-specific DNA recombination. Cold Spring Harb Protoc 2007; 2007:pdb.top12. [PMID: 21357131 DOI: 10.1101/pdb.top12] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
INTRODUCTIONAltering the genome of intact cells and organisms by site-specific DNA recombination has become an important gene-transfer methodology. DNA modifications produced by gene transfer and homologous recombination are typically static once integrated among target cell chromosomes. In contrast, the inclusion of exogenous recombinase target sequences within transferred DNA segments allows subsequent modifications to previously altered genomic structure that increase the utility of gene transfer and enhance experimental design. Creating tissue- and cell-type-specific genetic lesions in animal models, indelibly marking progenitors for cell fate mapping, inducing large-scale chromosomal rearrangements, and complementing gene defects in studies of phenotypic maintenance and reversion are all possible by directing recombinase expression using gene transfer among experimentally modified genomes. Moreover, this approach is effective in providing controlled data establishing genotype-phenotype relationships and allows for the excision of introduced marker genes that can affect neighboring chromatin structure and function. Although early work involved the yeast Flp recombinase, most studies in mammalian systems have used the Cre recombinase derived from bacteriophage P1. Both enzymes are members of the integrase family of recombinases but bind to distinct DNA target signals. Cre recombinase operates on the 34-bp loxP sequence and, like Flp, performs conservative recombination involving DNA segments positioned among these target sites.
Collapse
|
45
|
Ohtsubo K, Marth JD. Cre Recombinase Gene Transfer In Vitro and Detection of loxP-Dependent Recombination. Cold Spring Harb Protoc 2007; 2007:pdb.prot4762. [PMID: 21357118 DOI: 10.1101/pdb.prot4762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
INTRODUCTIONAltering the genome of intact cells and organisms by site-specific DNA recombination has become an important gene-transfer methodology. The inclusion of exogenous recombinase target sequences within transferred DNA segments allows subsequent modifications to previously altered genomic structure that increase the utility of gene transfer and enhance experimental design. In this protocol, correctly targeted mouse embryonic stem (ES) cell clones bearing the F[tkneo] allele (containing several loxP sites) are subjected to in vitro Cre gene transfer to generate ES cell subclones bearing either Type 1 (Δ) or Type 2 (F) alleles. Type 2 ES cells are used to generate chimeric mice that are then crossed to germ-line Cre-expressing mice, such as ZP3-Cre transgenic mates. The additional time needed to breed the mice (~2-3 mo) is typically less troublesome than the cost and effort of maintaining multiple clone-derived lines of mice.
Collapse
|
46
|
Ohtsubo K, Marth JD. Genome Modification by Inclusion of loxP Transgene Sequences. Cold Spring Harb Protoc 2007; 2007:pdb.prot4761. [PMID: 21357117 DOI: 10.1101/pdb.prot4761] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
INTRODUCTIONWe describe here a procedure for introducing loxP sites into the mammalian genome. A typical gene-targeting approach to create a conditional null allele is presented, in which the initial placement of loxP sites is not deleterious to allele function. This can be modified to include knock-ins of point mutations, with such mutations flanked by loxP sites that can then be recombined by Cre expression. The choice of sequence or regulatory element to modify is dependent on the experimental design. Consideration must be given to the possible production of truncated and altered gene sequence products, or otherwise aberrantly functioning alleles.
Collapse
|
47
|
Mitoma J, Bao X, Petryanik B, Schaerli P, Gauguet JM, Yu SY, Kawashima H, Saito H, Ohtsubo K, Marth JD, Khoo KH, von Andrian UH, Lowe JB, Fukuda M. Critical functions of N-glycans in L-selectin-mediated lymphocyte homing and recruitment. Nat Immunol 2007; 8:409-18. [PMID: 17334369 DOI: 10.1038/ni1442] [Citation(s) in RCA: 140] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2006] [Accepted: 01/23/2007] [Indexed: 01/24/2023]
Abstract
Lymphocyte homing is mediated by specific interaction between L-selectin on lymphocytes and the carbohydrate ligand 6-sulfo sialyl Lewis X on high endothelial venules. Here we generated mice lacking both core 1 extension and core 2 branching enzymes to assess the functions of O-glycan-borne L-selectin ligands in vivo. Mutant mice maintained robust lymphocyte homing, yet they lacked O-glycan L-selectin ligands. Biochemical analyses identified a class of N-glycans bearing the 6-sulfo sialyl Lewis X L-selectin ligand in high endothelial venules. These N-glycans supported the binding of L-selectin to high endothelial venules in vitro and contributed in vivo to O-glycan-independent lymphocyte homing in wild-type and mutant mice. Our results demonstrate the critical function of N-glycan-linked 6-sulfo sialyl Lewis X in L-selectin-dependent lymphocyte homing and recruitment.
Collapse
Affiliation(s)
- Junya Mitoma
- Glycobiology Program, Cancer Research Center, Burnham Institute for Medical Research, La Jolla, California 92037, USA
| | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
48
|
Sperandio M, Frommhold D, Babushkina I, Ellies LG, Olson TS, Smith ML, Fritzsching B, Pauly E, Smith DF, Nobiling R, Linderkamp O, Marth JD, Ley K. Alpha 2,3-sialyltransferase-IV is essential for L-selectin ligand function in inflammation. Eur J Immunol 2007; 36:3207-15. [PMID: 17111351 DOI: 10.1002/eji.200636157] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
L-selectin belongs to the C-type lectin family of glycoproteins and is constitutively expressed on most leukocytes. L-selectin mediates leukocyte rolling in inflamed microvessels and high endothelial venules (HEV) via binding to specific carbohydrate structures on selectin ligands. Previous studies using sialidase treatment suggested a role of sialic acid residues in L-selectin-dependent rolling. To investigate the role of the alpha2,3-sialyltransferase (ST3Gal)-IV on L-selectin ligand activity in vivo, we studied leukocyte rolling in inflamed venules of the cremaster muscle and in Peyer's patch HEV of ST3Gal-IV-deficient mice and littermate control mice. In cremaster muscle venules with or without TNF-alpha treatment, L-selectin-dependent rolling was almost completely abolished in ST3Gal-IV(-/-) mice. In both models, L-selectin interacts with P-selectin glycoprotein ligand-1 (PSGL-1) presented by adherent leukocytes and leukocyte fragments, but not with endothelial L-selectin ligands. In contrast, L-selectin-dependent rolling in Peyer's patch HEV, which is mediated by unknown endothelial L-selectin ligands, was not impaired in the absence of ST3Gal-IV. Our in vivo data show that PSGL-1, the molecule responsible for L-selectin-mediated leukocyte interactions in inflammation, is dependent on ST3Gal-IV, while alpha2,3-sialylation by ST3Gal-IV is not necessary for L-selectin ligand activity on high endothelial cells of Peyer's patch HEV.
Collapse
Affiliation(s)
- Markus Sperandio
- Children's Hospital, University of Heidelberg, Heidelberg, Germany.
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
49
|
Abstract
Glycosylation produces an abundant, diverse, and highly regulated repertoire of cellular glycans that are frequently attached to proteins and lipids. The past decade of research on glycan function has revealed that the enzymes responsible for glycosylation-the glycosyltransferases and glycosidases-are essential in the development and physiology of living organisms. Glycans participate in many key biological processes including cell adhesion, molecular trafficking and clearance, receptor activation, signal transduction, and endocytosis. This review discusses the increasingly sophisticated molecular mechanisms being discovered by which mammalian glycosylation governs physiology and contributes to disease.
Collapse
Affiliation(s)
- Kazuaki Ohtsubo
- Howard Hughes Medical Institute and Department of Cellular and Molecular Medicine, 9500 Gilman Drive-MC0625, University of California, San Diego, La Jolla, CA 92093, USA
| | | |
Collapse
|
50
|
Abstract
CD8+ T-cell apoptosis is essential for the contraction phase of the immune response, yet the initiating signals and precise pathways involved are unresolved. The ST3Gal-I sialyltransferase is a candidate mechanistic component and catalyzes sialic acid addition to core 1 O-glycans during protein O glycosylation. ST3Gal-I inactivation or enzymatic removal of its product renders CD8+ T cells, but not CD4+ T cells, susceptible to apoptosis by differential cross-linking of O-glycoproteins in the absence of interleukin-2 and T-cell receptor (TCR) signaling. This results in caspase activation, DNA fragmentation, and phosphatidylserine externalization prior to cell death. We further show that ST3Gal-I function is regulated by a posttranscriptional mechanism operating distal to Golgi core 2 O glycosylation and is invariably linked to CD8+ T-cell contraction following viral (lymphocytic choriomeningitis virus) infection and bacterial (staphylococcal enterotoxin B) antigen immunization. The mechanism does not involve the ST3Gal-I substrate CD43 or core 2 O-glycan induction and overcomes the ability of Bcl-2 to inhibit the contraction phase in vivo. Loss of ST3Gal-I function further reduces Bim-deficient CD8+ T-cell accumulation without diminishing apoptotic sensitivity. We propose that an endogenous lectin activates an apoptotic pathway constructed in CD8+ T cells following TCR stimulation and enables contraction upon attenuation of immune signaling.
Collapse
Affiliation(s)
- Steven J Van Dyken
- Howard Hughes Medical Institute and Department of Cellular and Molecular Medicine, University of California-San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0625, USA
| | | | | |
Collapse
|