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Pfirschke C, Zilionis R, Engblom C, Messemaker M, Zou AE, Rickelt S, Gort-Freitas NA, Lin Y, Bill R, Siwicki M, Gungabeesoon J, Sprachman MM, Marquard AN, Rodell CB, Cuccarese MF, Quintana J, Ahmed MS, Kohler RH, Savova V, Weissleder R, Klein AM, Pittet MJ. Macrophage-targeted therapy unlocks antitumoral crosstalk between IFN𝛾-secreting lymphocytes and IL12-producing dendritic cells. Cancer Immunol Res 2021; 10:40-55. [PMID: 34795032 PMCID: PMC10132467 DOI: 10.1158/2326-6066.cir-21-0326] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Revised: 09/02/2021] [Accepted: 11/16/2021] [Indexed: 12/09/2022]
Abstract
Macrophages often abound within tumors, express colony-stimulating factor 1 receptor (CSF1R), and are linked to adverse patient survival. Drugs blocking CSF1R signaling have been used to suppress tumor-promoting macrophage responses; however, their mechanisms of action remain incompletely understood. Here, we assessed the lung tumor immune microenvironment in mice treated with BLZ945, a prototypical small molecule CSF1R inhibitor, using single-cell RNA sequencing and mechanistic validation approaches. We showed that tumor control was not caused by CSF1R+ cell depletion; instead, CSF1R targeting reshaped the CSF1R+ cell landscape, which unlocked crosstalk between antitumoral CSF1R- cells. These cells included IFNγ-producing NK and T cells, and an IL12-producing dendritic cell subset, denoted as DC3, which were all necessary for CSF1R inhibitor-mediated lung tumor control. These data indicate that CSF1R targeting can activate a cardinal crosstalk between cells that are not macrophages and that are essential to mediate the effects of T cell-targeted immunotherapies and promote antitumor immunity.
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Affiliation(s)
- Christina Pfirschke
- Center for Systems Biology, Massachusetts General Hospital and Harvard Medical School
| | - Rapolas Zilionis
- Life Sciences Center, Department of Biotechnology, Vilnius University
| | | | | | - Angela E Zou
- Massachusetts General Hospital and Harvard Medical School
| | - Steffen Rickelt
- David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology
| | | | - Yunkang Lin
- Massachusetts General Hospital and Harvard Medical School
| | - Ruben Bill
- Massachusetts General Hospital/Harvard Medical School
| | - Marie Siwicki
- Massachusetts General Hospital/Harvard Medical School
| | - Jeremy Gungabeesoon
- Center for Systems Biology, Massachusetts General Hospital and Harvard Medical School
| | - Melissa M Sprachman
- Center for Systems Biology, Massachusetts General Hospital and Harvard Medical School
| | | | | | | | | | - Maaz S Ahmed
- Center for Systems Biology, Massachusetts General Hospital and Harvard Medical School
| | - Rainer H Kohler
- Center for Molecular Imaging Research, Mass General Hospital
| | | | - Ralph Weissleder
- Center for Systems Biology, Massachusetts General Hospital/Harvard Medical School
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Abstract
Disulfide rebridging methods have recently emerged as a route to hinge region-specific antibody modification, and there exist numerous examples of successful rebridging chemistry applied to clinically relevant human IgG1 antibodies. Here, dibromopyridazinedione disulfide rebridging is adapted to fast trans-cyclooctene/tetrazine (TCO/Tz) bioorthogonal ligations and extended beyond therapeutic human IgG1 antibodies for the first time to include mouse and rat monoclonal antibodies integral to multiplexed analytical diagnostics. In spite of a common architecture, only a subset of antibody host species and IgG isotype subclasses can be rebridged, highlighting the intricate relationship between hinge region sequence, structure, biological activity, and the conjugation chemistry of IgG antibodies.
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Affiliation(s)
- Angela N. Marquard
- Center for Systems Biology, Massachusetts General Hospital Research Institute, Boston, MA
| | - Jonathan C. T. Carlson
- Center for Systems Biology, Massachusetts General Hospital Research Institute, Boston, MA
- Cancer Center, Massachusetts General Hospital and Harvard Medical School, Boston, MA
| | - Ralph Weissleder
- Center for Systems Biology, Massachusetts General Hospital Research Institute, Boston, MA
- Department of Systems Biology, Harvard Medical School, Boston, MA
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Marquard AN, Carlson JCT, Weissleder R. Glass Chemistry to Analyze Human Cells under Adverse Conditions. ACS Omega 2019; 4:11515-11521. [PMID: 31460257 PMCID: PMC6682085 DOI: 10.1021/acsomega.9b01036] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Accepted: 06/19/2019] [Indexed: 05/17/2023]
Abstract
Emerging point-of-care diagnostic tests capable of analyzing whole mammalian cells often rely on the attachment of harvested cells to glass surfaces for subsequent molecular characterization. We set out to develop and optimize a kit for the diagnosis of lymphoma in low- and middle-income countries where access to advanced healthcare testing is often absent or prone to error. Here, we optimized a process for the lyophilization of neutravidin-coated glass and cocktails of antibodies relevant to lymphoma diagnosis to establish long-term stability of reagents required for point-of-care cell capture technology. Lyophilized glass slides showed no decline in their performance compared to freshly prepared neutravidin glass and preserved capture efficiency for 5 weeks under easily attainable storage conditions. We demonstrate the successful performance of the low-cost, lyophilized kit in a cell capture assay to enable true point-of-care analyses under adverse conditions. We anticipate that the strategy can be expanded to other cancer cell types or cell-derived vesicle analysis.
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Affiliation(s)
- Angela N. Marquard
- Center for Systems
Biology, Massachusetts General Hospital, 185 Cambridge Street, CPZN 5206, Boston, Massachusetts 02114, United States
| | - Jonathan C. T. Carlson
- Center for Systems
Biology, Massachusetts General Hospital, 185 Cambridge Street, CPZN 5206, Boston, Massachusetts 02114, United States
- MGH Cancer
Center, Massachusetts General Hospital, Boston, Massachusetts 02114, United States
- E-mail: (J.C.T.C.)
| | - Ralph Weissleder
- Center for Systems
Biology, Massachusetts General Hospital, 185 Cambridge Street, CPZN 5206, Boston, Massachusetts 02114, United States
- Department of Systems Biology, Harvard
Medical School, 200
Longwood Avenue, Boston, Massachusetts 02115, United States
- E-mail: (R.W.)
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Hinton DA, Ng JD, Sun J, Lee S, Saikin SK, Logsdon J, White DS, Marquard AN, Cavell AC, Krasecki VK, Knapper KA, Lupo KM, Wasielewski MR, Aspuru-Guzik A, Biteen JS, Gopalan P, Goldsmith RH. Mapping Forbidden Emission to Structure in Self-Assembled Organic Nanoparticles. J Am Chem Soc 2018; 140:15827-15841. [DOI: 10.1021/jacs.8b09149] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Daniel A. Hinton
- Department of Chemistry, University of Wisconsin−Madison, 1101 University Avenue, Madison, Wisconsin 53705, United States
| | - James D. Ng
- Department of Chemistry, University of Wisconsin−Madison, 1101 University Avenue, Madison, Wisconsin 53705, United States
| | - Jian Sun
- Department of Materials Science and Engineering, University of Wisconsin−Madison, Madison, Wisconsin 53706, United States
| | - Stephen Lee
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109-1055, United States
| | - Semion K. Saikin
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138, United States
- Institute of Physics, Kazan Federal University, Kazan 420008, Russian Federation
| | - Jenna Logsdon
- Department of Chemistry and Institute for Sustainability and Energy at Northwestern, Northwestern University, Evanston, Illinois 60208-3113, United States
| | - David S. White
- Department of Chemistry, University of Wisconsin−Madison, 1101 University Avenue, Madison, Wisconsin 53705, United States
- Department of Neuroscience, University of Wisconsin−Madison, 1111 Highland Avenue, Madison, Wisconsin 53705, United States
| | - Angela N. Marquard
- Department of Chemistry, University of Wisconsin−Madison, 1101 University Avenue, Madison, Wisconsin 53705, United States
| | - Andrew C. Cavell
- Department of Chemistry, University of Wisconsin−Madison, 1101 University Avenue, Madison, Wisconsin 53705, United States
| | - Veronica K. Krasecki
- Department of Chemistry, University of Wisconsin−Madison, 1101 University Avenue, Madison, Wisconsin 53705, United States
| | - Kassandra A. Knapper
- Department of Chemistry, University of Wisconsin−Madison, 1101 University Avenue, Madison, Wisconsin 53705, United States
| | - Katherine M. Lupo
- Department of Chemistry, University of Wisconsin−Madison, 1101 University Avenue, Madison, Wisconsin 53705, United States
| | - Michael R. Wasielewski
- Department of Chemistry and Institute for Sustainability and Energy at Northwestern, Northwestern University, Evanston, Illinois 60208-3113, United States
| | - Alán Aspuru-Guzik
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138, United States
- Biologically-Inspired Solar Energy Program, Canadian Institute for Advanced Research (CIFAR), Toronto, Ontario M5S 1M1, Canada
- Department of Chemistry and Department of Computer Science, University of Toronto, Toronto, Ontario M5S 3H6, Canada
- Vector Institute for Artificial Intelligence, Toronto, Ontario M5S 1M1, Canada
| | - Julie S. Biteen
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109-1055, United States
| | - Padma Gopalan
- Department of Chemistry, University of Wisconsin−Madison, 1101 University Avenue, Madison, Wisconsin 53705, United States
- Department of Materials Science and Engineering, University of Wisconsin−Madison, Madison, Wisconsin 53706, United States
| | - Randall H. Goldsmith
- Department of Chemistry, University of Wisconsin−Madison, 1101 University Avenue, Madison, Wisconsin 53705, United States
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Ng JD, Upadhyay SP, Marquard AN, Lupo KM, Hinton DA, Padilla NA, Bates DM, Goldsmith RH. Single-Molecule Investigation of Initiation Dynamics of an Organometallic Catalyst. J Am Chem Soc 2016; 138:3876-83. [PMID: 26944030 DOI: 10.1021/jacs.6b00357] [Citation(s) in RCA: 60] [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: 12/31/2022]
Abstract
The action of molecular catalysts comprises multiple microscopic kinetic steps whose nature is of central importance in determining catalyst activity and selectivity. Single-molecule microscopy enables the direct examination of these steps, including elucidation of molecule-to-molecule variability. Such molecular diversity is particularly important for the behavior of molecular catalysts supported at surfaces. We present the first combined investigation of the initiation dynamics of an operational palladium cross-coupling catalyst at the bulk and single-molecule levels, including under turnover conditions. Base-initiated kinetics reveal highly heterogeneous behavior indicative of diverse catalyst population. Unexpectedly, this distribution becomes more heterogeneous at increasing base concentration. We model this behavior with a two-step saturation mechanism and identify specific microscopic steps where chemical variability must exist in order to yield observed behavior. Critically, we reveal how structural diversity at a surface translates into heterogeneity in catalyst behavior, while demonstrating how single-molecule experiments can contribute to understanding of molecular catalysts.
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Affiliation(s)
- James D Ng
- Department of Chemistry, The University of Wisconsin-Madison , 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Sunil P Upadhyay
- Department of Chemistry, The University of Wisconsin-Madison , 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Angela N Marquard
- Department of Chemistry, The University of Wisconsin-Madison , 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Katherine M Lupo
- Department of Chemistry, The University of Wisconsin-Madison , 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Daniel A Hinton
- Department of Chemistry, The University of Wisconsin-Madison , 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Nicolas A Padilla
- Department of Chemistry, The University of Wisconsin-Madison , 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Desiree M Bates
- Department of Chemistry, The University of Wisconsin-Madison , 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Randall H Goldsmith
- Department of Chemistry, The University of Wisconsin-Madison , 1101 University Avenue, Madison, Wisconsin 53706, United States
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