1
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Robinson BW, Kairalla JA, Devidas M, Carroll AJ, Harvey RC, Heerema NA, Willman CL, Ball AR, Woods EC, Ballantyne NC, Urtishak KA, Behm FG, Reaman GH, Hilden JM, Camitta BM, Winick NJ, Pullen J, Carroll WL, Hunger SP, Dreyer ZE, Felix CA. KMT2A partner genes in infant acute lymphoblastic leukemia have prognostic significance and correlate with age, white blood cell count, sex, and central nervous system involvement: a Children's Oncology Group P9407 trial study. Haematologica 2023; 108:2865-2871. [PMID: 36861410 PMCID: PMC10543184 DOI: 10.3324/haematol.2022.281552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Accepted: 02/23/2023] [Indexed: 03/03/2023] Open
Affiliation(s)
- Blaine W Robinson
- Division of Oncology and the Center for Childhood Cancer Research, Children's Hospital of Philadelphia, Philadelphia, PA
| | - John A Kairalla
- Department of Biostatistics, University of Florida College of Public Health and Health Professions and College of Medicine, Gainesville, FL
| | - Meenakshi Devidas
- Department of Global Pediatric Medicine, St Jude Children's Research Hospital, Memphis, TN
| | - Andrew J Carroll
- Department of Genetics, University of Alabama at Birmingham, Birmingham, AL
| | - Richard C Harvey
- University of New Mexico Cancer Center and Department of Pathology, Albuquerque, NM
| | - Nyla A Heerema
- Department of Pathology, The Ohio State University Comprehensive Cancer Center, Columbus, OH
| | | | - Amanda R Ball
- Division of Oncology and the Center for Childhood Cancer Research, Children's Hospital of Philadelphia, Philadelphia, PA
| | - Elliot C Woods
- Division of Oncology and the Center for Childhood Cancer Research, Children's Hospital of Philadelphia, Philadelphia, PA
| | - Nancy C Ballantyne
- Division of Oncology and the Center for Childhood Cancer Research, Children's Hospital of Philadelphia, Philadelphia, PA
| | - Karen A Urtishak
- Division of Oncology and the Center for Childhood Cancer Research, Children's Hospital of Philadelphia, Philadelphia, PA
| | - Frederick G Behm
- Department of Pathology, University of Illinois at Chicago, Chicago, IL
| | | | - Joanne M Hilden
- Center for Cancer and Blood Disorders, Children's Hospital Colorado, Aurora, CO
| | | | - Naomi J Winick
- Division of Pediatric Hematology/Oncology, University of Texas Southwestern School of Medicine, Dallas, TX
| | - Jeanette Pullen
- Pediatric Hematology/Oncology, University of Mississippi Medical Center, Jackson, MS
| | - William L Carroll
- Department of Pediatrics and Perlmutter Cancer Center, NYU Langone Health, New York, NY
| | - Stephen P Hunger
- Division of Oncology and the Center for Childhood Cancer Research, Children's Hospital of Philadelphia, Philadelphia, PA, USA; Department of Pediatrics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA
| | | | - Carolyn A Felix
- Division of Oncology and the Center for Childhood Cancer Research, Children's Hospital of Philadelphia, Philadelphia, PA, USA; Department of Pediatrics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA.
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2
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Gray MA, Stanczak MA, Mantuano NR, Xiao H, Pijnenborg JFA, Malaker SA, Miller CL, Weidenbacher PA, Tanzo JT, Ahn G, Woods EC, Läubli H, Bertozzi CR. Targeted glycan degradation potentiates the anticancer immune response in vivo. Nat Chem Biol 2020; 16:1376-1384. [PMID: 32807964 PMCID: PMC7727925 DOI: 10.1038/s41589-020-0622-x] [Citation(s) in RCA: 159] [Impact Index Per Article: 39.8] [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: 05/23/2019] [Accepted: 07/08/2020] [Indexed: 12/24/2022]
Abstract
Currently approved immune checkpoint inhibitor therapies targeting the PD-1 and CTLA-4 receptor pathways are powerful treatment options for certain cancers; however, most patients across cancer types still fail to respond. Consequently, there is interest in discovering and blocking alternative pathways that mediate immune suppression. One such mechanism is an upregulation of sialoglycans in malignancy, which has been recently shown to inhibit immune cell activation through multiple mechanisms and therefore represents a targetable glycoimmune checkpoint. Since these glycans are not canonically druggable, we designed an αHER2 antibody-sialidase conjugate that potently and selectively strips diverse sialoglycans from breast cancer cells. In syngeneic breast cancer models, desialylation enhanced immune cell infiltration and activation and prolonged the survival of mice, an effect that was dependent on expression of the Siglec-E checkpoint receptor found on tumor-infiltrating myeloid cells. Thus, antibody-sialidase conjugates represent a promising modality for glycoimmune checkpoint therapy.
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MESH Headings
- Allografts
- Animals
- Antibodies, Monoclonal/chemistry
- Antibodies, Monoclonal/metabolism
- B7-H1 Antigen/genetics
- B7-H1 Antigen/immunology
- Cell Line, Tumor
- Humans
- Hydrolysis
- Immunoconjugates/chemistry
- Immunoconjugates/metabolism
- Immunoconjugates/pharmacology
- Immunotherapy/methods
- Killer Cells, Natural/cytology
- Killer Cells, Natural/immunology
- Melanoma, Experimental/genetics
- Melanoma, Experimental/immunology
- Melanoma, Experimental/mortality
- Melanoma, Experimental/therapy
- Mice
- Mice, Inbred C57BL
- Mice, Knockout
- Models, Molecular
- Molecular Targeted Therapy
- Neuraminidase/chemistry
- Neuraminidase/genetics
- Neuraminidase/immunology
- Polysaccharides/chemistry
- Polysaccharides/immunology
- Programmed Cell Death 1 Receptor/genetics
- Programmed Cell Death 1 Receptor/immunology
- Protein Binding
- Protein Interaction Domains and Motifs
- Protein Structure, Secondary
- Receptor, ErbB-2/chemistry
- Receptor, ErbB-2/genetics
- Receptor, ErbB-2/immunology
- Sialic Acid Binding Immunoglobulin-like Lectins/chemistry
- Sialic Acid Binding Immunoglobulin-like Lectins/genetics
- Sialic Acid Binding Immunoglobulin-like Lectins/immunology
- Survival Analysis
- T-Lymphocytes/cytology
- T-Lymphocytes/immunology
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Affiliation(s)
- Melissa A Gray
- Department of Chemistry, Stanford University, Stanford, CA, USA
| | - Michal A Stanczak
- Cancer Immunology Laboratory, Department of Biomedicine, University Hospital, Basel, Switzerland
- Division of Oncology, Department of Internal Medicine, University Hospital, Basel, Switzerland
| | - Natália R Mantuano
- Cancer Immunology Laboratory, Department of Biomedicine, University Hospital, Basel, Switzerland
- Division of Oncology, Department of Internal Medicine, University Hospital, Basel, Switzerland
| | - Han Xiao
- Department of Chemistry, Stanford University, Stanford, CA, USA
| | | | - Stacy A Malaker
- Department of Chemistry, Stanford University, Stanford, CA, USA
| | - Caitlyn L Miller
- Department of Bioengineering, Stanford University, Stanford, CA, USA
| | | | - Julia T Tanzo
- Department of Chemistry, Stanford University, Stanford, CA, USA
| | - Green Ahn
- Department of Chemistry, Stanford University, Stanford, CA, USA
| | - Elliot C Woods
- Department of Chemistry, Stanford University, Stanford, CA, USA
| | - Heinz Läubli
- Cancer Immunology Laboratory, Department of Biomedicine, University Hospital, Basel, Switzerland
- Division of Oncology, Department of Internal Medicine, University Hospital, Basel, Switzerland
| | - Carolyn R Bertozzi
- Department of Chemistry, Stanford University, Stanford, CA, USA.
- Howard Hughes Medical Institute, Stanford University, Stanford, CA, USA.
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3
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Kaushik S, Barnes JM, Bainer RO, Sa JK, Woods EC, Kai F, Lakins JN, Phillips JJ, Weaver VM. Abstract 1900: A tension-mediated glycocalyx feedback loop promotes glioblastoma. Cancer Res 2019. [DOI: 10.1158/1538-7445.am2019-1900] [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
A considerable challenge in glioblastoma (GBM) therapy is treatment resistance and tumor recurrence, resulting in dismal patient prognosis. GBM aggression and recurrence is often associated with a mesenchymal phenotype, increased expression of glycoproteins and the presence of glioma-initiating “stem-like” cells. Using patient-derived xenograft models, and immune competent syngeneic and transgenic glioma mouse models, we show that aggressive mesenchymal-like GBMs, reminiscent of recurrent GBM, are mechanically stiffer, present with a bulky glycocalyx and demonstrate a stem-like phenotype. We report that the more aggressive mesenchymal GBMs show increased mechanical signaling and contractility, and their tumors are surrounded by a stiffer ECM that maintains and even further enhances integrin mechanosignaling. Since a large proportion of these bulky glycoproteins are also stem markers, upregulation of the glycoproteins and their modulators leads to enhanced GBM stem-ness. This was evident both in our mesenchymal models of GBM as well as multiple patient datasets which compared paired primary and recurrent GBM RNA sequencing and protein data. In addition to stem-ness, we show that the mechanically “enhanced” GBMs also foster a differential immune landscape, infiltrated by type 2 macrophages, believed to be pro-tumorigenic and immune evasive. Our findings suggest that there is a dynamic and reciprocal link between integrin mechanosignaling, the GBM immune landscape and a bulky glycocalyx, which promotes a mesenchymal, stem-like phenotype and likely recurrence in GBM patients. Thus, therapeutic strategies to target GBM tissue tension could prevent recurrence, reduce mortality and improve patient outcome.
Citation Format: Shelly Kaushik, James Matthew Barnes, Russell O. Bainer, Jason K. Sa, Elliot C. Woods, Fuiboon Kai, Jonathon N. Lakins, Joanna J. Phillips, Valerie M. Weaver. A tension-mediated glycocalyx feedback loop promotes glioblastoma [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2019; 2019 Mar 29-Apr 3; Atlanta, GA. Philadelphia (PA): AACR; Cancer Res 2019;79(13 Suppl):Abstract nr 1900.
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Affiliation(s)
| | | | | | - Jason K. Sa
- 2Institute for Refractory Cancer Research, Seoul, Republic of Korea
| | | | - Fuiboon Kai
- 1Univ. of California San Francisco, San Francisco, CA
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4
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Malaker SA, Pedram K, Ferracane MJ, Bensing BA, Krishnan V, Pett C, Yu J, Woods EC, Kramer JR, Westerlind U, Dorigo O, Bertozzi CR. The mucin-selective protease StcE enables molecular and functional analysis of human cancer-associated mucins. Proc Natl Acad Sci U S A 2019; 116:7278-7287. [PMID: 30910957 PMCID: PMC6462054 DOI: 10.1073/pnas.1813020116] [Citation(s) in RCA: 149] [Impact Index Per Article: 29.8] [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] [Indexed: 12/21/2022] Open
Abstract
Mucin domains are densely O-glycosylated modular protein domains that are found in a wide variety of cell surface and secreted proteins. Mucin-domain glycoproteins are known to be key players in a host of human diseases, especially cancer, wherein mucin expression and glycosylation patterns are altered. Mucin biology has been difficult to study at the molecular level, in part, because methods to manipulate and structurally characterize mucin domains are lacking. Here, we demonstrate that secreted protease of C1 esterase inhibitor (StcE), a bacterial protease from Escherichia coli, cleaves mucin domains by recognizing a discrete peptide- and glycan-based motif. We exploited StcE's unique properties to improve sequence coverage, glycosite mapping, and glycoform analysis of recombinant human mucins by mass spectrometry. We also found that StcE digests cancer-associated mucins from cultured cells and from ascites fluid derived from patients with ovarian cancer. Finally, using StcE, we discovered that sialic acid-binding Ig-type lectin-7 (Siglec-7), a glycoimmune checkpoint receptor, selectively binds sialomucins as biological ligands, whereas the related receptor Siglec-9 does not. Mucin-selective proteolysis, as exemplified by StcE, is therefore a powerful tool for the study of mucin domain structure and function.
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Affiliation(s)
- Stacy A Malaker
- Department of Chemistry, Stanford University, Stanford, CA 94305
| | - Kayvon Pedram
- Department of Chemistry, Stanford University, Stanford, CA 94305
| | | | - Barbara A Bensing
- Department of Medicine, San Francisco Veterans Affairs Medical Center and University of California, San Francisco, CA 94143
| | - Venkatesh Krishnan
- Stanford Women's Cancer Center, Division of Gynecologic Oncology, Stanford University, Stanford, CA 94305
| | - Christian Pett
- Leibniz-Institut für Analytische Wissenschaften (ISAS), 44227 Dortmund, Germany
- Department of Chemistry, Umeå University, 901 87 Umeå, Sweden
| | - Jin Yu
- Leibniz-Institut für Analytische Wissenschaften (ISAS), 44227 Dortmund, Germany
| | - Elliot C Woods
- Department of Chemistry, Stanford University, Stanford, CA 94305
| | - Jessica R Kramer
- Department of Bioengineering, University of Utah, Salt Lake City, UT 84112
| | - Ulrika Westerlind
- Leibniz-Institut für Analytische Wissenschaften (ISAS), 44227 Dortmund, Germany
- Department of Chemistry, Umeå University, 901 87 Umeå, Sweden
| | - Oliver Dorigo
- Stanford Women's Cancer Center, Division of Gynecologic Oncology, Stanford University, Stanford, CA 94305
| | - Carolyn R Bertozzi
- Department of Chemistry, Stanford University, Stanford, CA 94305;
- Howard Hughes Medical Institute, Stanford, CA 94305
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5
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Freeman SA, Vega A, Riedl M, Collins RF, Ostrowski PP, Woods EC, Bertozzi CR, Tammi MI, Lidke DS, Johnson P, Mayor S, Jaqaman K, Grinstein S. Transmembrane Pickets Connect Cyto- and Pericellular Skeletons Forming Barriers to Receptor Engagement. Cell 2018; 172:305-317.e10. [PMID: 29328918 DOI: 10.1016/j.cell.2017.12.023] [Citation(s) in RCA: 133] [Impact Index Per Article: 22.2] [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: 05/02/2017] [Revised: 08/03/2017] [Accepted: 12/18/2017] [Indexed: 01/17/2023]
Abstract
Phagocytic receptors must diffuse laterally to become activated upon clustering by multivalent targets. Receptor diffusion, however, can be obstructed by transmembrane proteins ("pickets") that are immobilized by interacting with the cortical cytoskeleton. The molecular identity of these pickets and their role in phagocytosis have not been defined. We used single-molecule tracking to study the interaction between Fcγ receptors and CD44, an abundant transmembrane protein capable of indirect association with F-actin, hence likely to serve as a picket. CD44 tethers reversibly to formin-induced actin filaments, curtailing receptor diffusion. Such linear filaments predominate in the trailing end of polarized macrophages, where receptor mobility was minimal. Conversely, receptors were most mobile at the leading edge, where Arp2/3-driven actin branching predominates. CD44 binds hyaluronan, anchoring a pericellular coat that also limits receptor displacement and obstructs access to phagocytic targets. Force must be applied to traverse the pericellular barrier, enabling receptors to engage their targets.
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Affiliation(s)
- Spencer A Freeman
- Program in Cell Biology, Peter Gilgan Centre for Research and Learning, Hospital for Sick Children, Toronto, ON M5G 0A4, Canada
| | - Anthony Vega
- Department of Biophysics, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Magdalena Riedl
- Program in Cell Biology, Peter Gilgan Centre for Research and Learning, Hospital for Sick Children, Toronto, ON M5G 0A4, Canada
| | - Richard F Collins
- Program in Cell Biology, Peter Gilgan Centre for Research and Learning, Hospital for Sick Children, Toronto, ON M5G 0A4, Canada
| | - Phillip P Ostrowski
- Program in Cell Biology, Peter Gilgan Centre for Research and Learning, Hospital for Sick Children, Toronto, ON M5G 0A4, Canada
| | - Elliot C Woods
- Departments of Chemistry and Molecular Biology and Howard Hughes Medical Institute, University of California, Berkeley, Berkeley, CA 94720, USA
| | - Carolyn R Bertozzi
- Departments of Chemistry and Molecular Biology and Howard Hughes Medical Institute, University of California, Berkeley, Berkeley, CA 94720, USA
| | - Markku I Tammi
- Institute of Biomedicine, University of Eastern Finland, Kuopio 70210, Finland
| | - Diane S Lidke
- Department of Pathology, Cancer Research Facility, School of Medicine, University of New Mexico, Albuquerque, NM 87131, USA
| | - Pauline Johnson
- Department of Microbiology and Immunology, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada
| | - Satyajit Mayor
- Cellular Organization and Signaling, National Centre for Biological Science, Tata Institute for Fundamental Research, Bangalore 560 065, India
| | - Khuloud Jaqaman
- Department of Biophysics, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Sergio Grinstein
- Program in Cell Biology, Peter Gilgan Centre for Research and Learning, Hospital for Sick Children, Toronto, ON M5G 0A4, Canada; Keenan Research Centre of the Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, ON M5C 1N8, Canada.
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6
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Kaushik S, Barnes JM, Bainer RO, Sa JK, Woods EC, Kai F, Przybyla L, Lakins JN, Phillips JJ, Nam DH, Bertozzi CR, Weaver VM. TMIC-43. A TENSION-MEDIATED GLYCOCALYX FEEDBACK LOOP PROMOTES A MESENCHYMAL, STEM-LIKE PHENOTYPE IN GLIOBLASTOMA. Neuro Oncol 2018. [DOI: 10.1093/neuonc/noy148.1102] [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: 11/14/2022] Open
Affiliation(s)
- Shelly Kaushik
- Center for Bioengineering and Tissue Regeneration, Department of Surgery, University of California San Francisco, San Francisco, CA
| | - James Matthew Barnes
- Center for Bioengineering and Tissue Regeneration, Department of Surgery, University of California San Francisco, San Francisco, CA
| | - Russell O Bainer
- Center for Bioengineering and Tissue Regeneration, Department of Surgery, University of California San Francisco, San Francisco, CA
| | - Jason K Sa
- Institute for Refractory Cancer Research, Research Institute for Future Medicine, Samsung Medical Center, Seoul, Republic of Korea
| | - Elliot C Woods
- Department of Chemistry, Stanford University, Palo Alto, CA, USA
| | - FuiBoon Kai
- Center for Bioengineering and Tissue Regeneration, Department of Surgery, University of California San Francisco, San Francisco, CA
| | - Laralynne Przybyla
- Center for Bioengineering and Tissue Regeneration, Department of Surgery, University of California San Francisco, San Francisco, CA
| | - Jonathon N Lakins
- Center for Bioengineering and Tissue Regeneration, Department of Surgery, University of California San Francisco, San Francisco, CA
| | - Joanna J Phillips
- Department of Neurological Surgery, Helen Diller Research Center, University of California San Francisco, San Francisco, CA, USA
| | - Do-Hyun Nam
- Institute for Refractory Cancer Research, Department of Health Sciences and Technology, SAIHST, Sungkyunkwan University, Department of Neurosurgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | | | - Valerie M Weaver
- Center for Bioengineering and Tissue Regeneration, Department of Surgery, University of California San Francisco, San Francisco, CA
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7
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Woods EC, Kai F, Barnes JM, Pedram K, Pickup MW, Hollander MJ, Weaver VM, Bertozzi CR. A bulky glycocalyx fosters metastasis formation by promoting G1 cell cycle progression. eLife 2017; 6. [PMID: 29266001 PMCID: PMC5739539 DOI: 10.7554/elife.25752] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [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: 02/03/2017] [Accepted: 12/02/2017] [Indexed: 01/01/2023] Open
Abstract
Metastasis depends upon cancer cell growth and survival within the metastatic niche. Tumors which remodel their glycocalyces, by overexpressing bulky glycoproteins like mucins, exhibit a higher predisposition to metastasize, but the role of mucins in oncogenesis remains poorly understood. Here we report that a bulky glycocalyx promotes the expansion of disseminated tumor cells in vivo by fostering integrin adhesion assembly to permit G1 cell cycle progression. We engineered tumor cells to display glycocalyces of various thicknesses by coating them with synthetic mucin-mimetic glycopolymers. Cells adorned with longer glycopolymers showed increased metastatic potential, enhanced cell cycle progression, and greater levels of integrin-FAK mechanosignaling and Akt signaling in a syngeneic mouse model of metastasis. These effects were mirrored by expression of the ectodomain of cancer-associated mucin MUC1. These findings functionally link mucinous proteins with tumor aggression, and offer a new view of the cancer glycocalyx as a major driver of disease progression.
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Affiliation(s)
- Elliot C Woods
- Department of Chemistry, Stanford University, California, United States
| | - FuiBoon Kai
- Center for Bioengineering and Tissue Regeneration, Department of Surgery, University of California, San Francisco, San Francisco, United States
| | - J Matthew Barnes
- Center for Bioengineering and Tissue Regeneration, Department of Surgery, University of California, San Francisco, San Francisco, United States
| | - Kayvon Pedram
- Department of Chemistry, Stanford University, California, United States
| | - Michael W Pickup
- Center for Bioengineering and Tissue Regeneration, Department of Surgery, University of California, San Francisco, San Francisco, United States
| | | | - Valerie M Weaver
- Center for Bioengineering and Tissue Regeneration, Department of Surgery, University of California, San Francisco, San Francisco, United States.,Department of Anatomy, University of California, San Francisco, San Francisco, United States.,Department of Bioengineering and Therapeutic Sciences, University of California, San Francisco, San Francisco, United States.,Department of Radiation Oncology, University of California, San Francisco, San Francisco, United States.,Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, University of California, San Francisco, San Francisco, United States.,UCSF Helen Diller Comprehensive Cancer Center, University of California, San Francisco, San Francisco, United States
| | - Carolyn R Bertozzi
- Department of Chemistry, Stanford University, California, United States.,Howard Hughes Medical Institute, Stanford University, California, United States
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8
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Barnes JM, Woods EC, Bainer RO, Miroshnikova YA, Lu K, Bergers G, Bertozzi C, Weaver VM. Abstract PR05: Glycoprotein-mediated tissue mechanics regulate glioblastoma aggression. Cancer Res 2017. [DOI: 10.1158/1538-7445.epso16-pr05] [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
Glioblastoma multiforme (GBM) is a malignant glioma whose progression is associated with rampant extracellular matrix (ECM) remodeling. We recently found that GBM ECM stiffness predicts reduced survival in human patients. Instead of collagen fibrosis, which is common in many solid tumors, we showed that GBM stiffening involves increased production of extracellular glycoproteins, glycosaminoglycans, and sugar-binding proteins. Using bioinformatics, we revealed that genes of the glycocalyx (transmembrane glycoproteins and their interacting partners) are disproportionately upregulated in GBM relative to lower grade gliomas. Further, these genes are overexpressed within GBM in the mesenchymal (MES) relative to the proneural (PRO) subtype, the former of which is associated with treatment resistance and relapse. Using mouse models of human GBM, we showed that MES tumors are more lethal than PRO, and present with elevated ECM stiffness and mechanical signaling. To test our hypothesis that mechanical signaling can drive the MES phenotype, we engineered PRO GBM cells with constitutively-elevated integrin signaling. Compared to control PRO cells, these undergo a robust MES-like transition, upregulate bulky glycoprotein expression, and result in stiffer and more lethal tumors. This phenotype was reversed by the inhibition of focal adhesion kinase in MES cells. To test whether an enhanced glycocalyx can directly elevate mechanical signaling, we decorated GBM cells with synthetic glycoprotein polymers. Indeed, this resulted in enhanced integrin-focal adhesion signaling and more aggressive tumor progression. The invasive properties and therapy resistance observed in mesenchymal tumor cells are often associated with elevated stem cell-like features. To investigate a link between the glycocalyx, tissue mechanics, and the mesenchymal-stem cell phenotype, we interfered with components of the gylcocalyx or mechanical signaling machinery and found a reduction in stem cell genes and surface proteins, as well as increased sensitivity to chemotherapy. These data support a model in which glycoprotein-mediated tissue stiffening drives GBM aggression through promotion of a mesenchymal phenotype.
This abstract is also being presented as Poster A39.
Citation Format: J. Matthew Barnes, Elliot C. Woods, Russell O. Bainer, Yekaterina A. Miroshnikova, Kan Lu, Gabriele Bergers, Carolyn Bertozzi, Valerie M. Weaver. Glycoprotein-mediated tissue mechanics regulate glioblastoma aggression. [abstract]. In: Proceedings of the AACR Special Conference on Engineering and Physical Sciences in Oncology; 2016 Jun 25-28; Boston, MA. Philadelphia (PA): AACR; Cancer Res 2017;77(2 Suppl):Abstract nr PR05.
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Affiliation(s)
| | | | | | | | - Kan Lu
- 1UCSF, San Francisco, CA,
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9
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Freeman SA, Goyette J, Furuya W, Woods EC, Bertozzi CR, Bergmeier W, Hinz B, van der Merwe PA, Das R, Grinstein S. Integrins Form an Expanding Diffusional Barrier that Coordinates Phagocytosis. Cell 2016; 164:128-140. [PMID: 26771488 DOI: 10.1016/j.cell.2015.11.048] [Citation(s) in RCA: 104] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2015] [Revised: 09/07/2015] [Accepted: 11/14/2015] [Indexed: 01/12/2023]
Abstract
Phagocytosis is initiated by lateral clustering of receptors, which in turn activates Src-family kinases (SFKs). Activation of SFKs requires depletion of tyrosine phosphatases from the area of particle engagement. We investigated how the major phosphatase CD45 is excluded from contact sites, using single-molecule tracking. The mobility of CD45 increased markedly upon engagement of Fcγ receptors. While individual CD45 molecules moved randomly, they were displaced from the advancing phagocytic cup by an expanding diffusional barrier. By micropatterning IgG, the ligand of Fcγ receptors, we found that the barrier extended well beyond the perimeter of the receptor-ligand engagement zone. Second messengers generated by Fcγ receptors activated integrins, which formed an actin-tethered diffusion barrier that excluded CD45. The expanding integrin wave facilitates the zippering of Fcγ receptors onto the target and integrates the information from sparse receptor-ligand complexes, coordinating the progression and ultimate closure of the phagocytic cup.
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Affiliation(s)
- Spencer A Freeman
- Program in Cell Biology, Hospital for Sick Children, Toronto, ON M5G 1X8, Canada
| | - Jesse Goyette
- Sir William Dunn School of Pathology, University of Oxford, Oxford OX1 3RE, UK
| | - Wendy Furuya
- Program in Cell Biology, Hospital for Sick Children, Toronto, ON M5G 1X8, Canada
| | - Elliot C Woods
- Department of Chemistry and Howard Hughes Medical Institute, Stanford University, Stanford, CA 94305-4401, USA
| | - Carolyn R Bertozzi
- Department of Chemistry and Howard Hughes Medical Institute, Stanford University, Stanford, CA 94305-4401, USA
| | - Wolfgang Bergmeier
- Department of Biochemistry and Biophysics, University of North Carolina, 120 Mason Farm Road, Chapel Hill, NC 27599-7260, USA
| | - Boris Hinz
- Matrix Dynamics Group, Faculty of Dentistry, University of Toronto, Toronto, ON M5S 3E2, Canada
| | | | - Raibatak Das
- Department of Integrative Biology, University of Colorado, Denver, CO 80217-3364, USA
| | - Sergio Grinstein
- Program in Cell Biology, Hospital for Sick Children, Toronto, ON M5G 1X8, Canada; Keenan Research Centre, St. Michael's Hospital, Toronto, ON M5S 1T8, Canada.
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10
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Woods EC, Yee NA, Shen J, Bertozzi CR. Glycocalyx Engineering with a Recycling Glycopolymer that Increases Cell Survival In Vivo. Angew Chem Int Ed Engl 2015; 54:15782-8. [PMID: 26647316 PMCID: PMC4736730 DOI: 10.1002/anie.201508783] [Citation(s) in RCA: 67] [Impact Index Per Article: 7.4] [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: 09/22/2015] [Indexed: 11/10/2022]
Abstract
Synthetic glycopolymers that emulate cell-surface mucins have been used to elucidate the role of mucin overexpression in cancer. However, because they are internalized within hours, these glycopolymers could not be employed to probe processes that occur on longer time scales. In this work, we tested a panel of glycopolymers bearing a variety of lipids to identify those that persist on cell membranes. Strikingly, we found that cholesterylamine (CholA) anchored glycopolymers are internalized into vesicles that serve as depots for delivery back to the cell surface, allowing for the display of cell-surface glycopolymers for at least ten days, even while the cells are dividing. As with native mucins, the cell-surface display of CholA-anchored glycopolymers influenced the focal adhesion distribution. Furthermore, we show that these mimetics enhance the survival of nonmalignant cells in a zebrafish model of metastasis. CholA-anchored glycopolymers therefore expand the application of glycocalyx engineering in glycobiology.
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Affiliation(s)
- Elliot C Woods
- Department of Bioengineering, University of California, Berkeley, CA 94720 (USA)
| | - Nathan A Yee
- Department of Chemistry, Stanford University, Stanford, CA 94305-4401 (USA)
| | - Jeff Shen
- Department of Chemistry, Stanford University, Stanford, CA 94305-4401 (USA)
| | - Carolyn R Bertozzi
- Department of Chemistry, Stanford University, Stanford, CA 94305-4401 (USA).
- Howard Hughes Medical Institute (USA).
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Affiliation(s)
- Elliot C. Woods
- Department of Bioengineering, University of California, Berkeley, CA 94720 (USA)
| | - Nathan A. Yee
- Department of Chemistry, Stanford University, Stanford, CA 94305‐4401 (USA)
| | - Jeff Shen
- Department of Chemistry, Stanford University, Stanford, CA 94305‐4401 (USA)
| | - Carolyn R. Bertozzi
- Department of Chemistry, Stanford University, Stanford, CA 94305‐4401 (USA)
- Howard Hughes Medical Institute (USA)
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Abstract
This article discusses the utilization of Imogene M. King's (1981) theory of goal attainment with a group of elderly clients who were living in a nursing home and experiencing many of the chronic health problems frequently associated with advanced age. Group members met weekly for 10 weeks to explore methods to promote continuous health restoration. Application of King's theory of goal attainment, utilizing interactions, transactions, perceptions, and expressions of self, facilitated mutual nurse-client goal identification and achievement.
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