Abstract
Clodronate liposomes (Clo-Lip) have been widely used to deplete mononuclear phagocytes (MoPh) to study the function of these cells in vivo. Here, we revisited the effects of Clo-Lip together with genetic models of MoPh deficiency, revealing that Clo-Lip exert their anti-inflammatory effects independent of MoPh. Notably, not only MoPh but also polymorphonuclear neutrophils (PMN) ingested Clo-Lip in vivo, which resulted in their functional arrest. Adoptive transfer of PMN, but not of MoPh, reversed the anti-inflammatory effects of Clo-Lip treatment, indicating that stunning of PMN rather than depletion of MoPh accounts for the anti-inflammatory effects of Clo-Lip in vivo. Our data highlight the need for a critical revision of the current literature on the role of MoPh in inflammation.
| Original language | English |
|---|---|
| Article number | e20220525 |
| Journal | Journal of Experimental Medicine |
| Volume | 220 |
| Issue number | 6 |
| ISSN | 0022-1007 |
| DOIs | |
| Publication status | Published - 05.06.2023 |
Funding
This work was supported by the Deutsche For-schungsgemeinschaft (FG 2886 “PANDORA” – B01/B02/A03/ B04 to G. Krönke, F. Nimmerjahn, G. Schett, and M.H. Hoffmann, respectively, and the CRC1181-A03/A01/A02/A07/C03 Z2 to G. Krönke, G. Schett, F. Nimmerjahn, and M.H. Hoffmann), the Emerging Field Initiative of the Friedrich-Alexander University Erlangen-Nürnberg (EFI_Verbund_Med_05_MIRACLE to G. Krönke), the Bundesministerium für Bildung und For-schung (MASCARA to G. Krönke and G. Schett; MelAutim to G. Krönke), and the European Union (Horizon 2020 ERC-2014-StG 640087 – SOS and ERC-2020-CoG 101001866 – INSPIRE to G. Krönke; and ERC-2018-SyG nanoSCOPE and RTCure to G. Schett). This work was supported by grants R01AI165661 from the National Institutes of Health/National Institute of Allergy and Infectious Diseases, H2020-FET-OPEN-2018-2020 (no. 861878) from the European Commission to A. Hidalgo and M.H. Hoffmann, and HR17_00527 from Fundacion La Caixa to A. Hidalgo. The CNIC is supported by the Min-isterio de Ciencia e Innovacion and the Pro-CNIC Foundation and is a Severo Ochoa Center of Excellence (MICINN award CEX2020-001041-S).
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 3 Good Health and Well-being
Research Areas and Centers
- Academic Focus: Center for Infection and Inflammation Research (ZIEL)
- Centers: Center for Research on Inflammation of the Skin (CRIS)
DFG Research Classification Scheme
- 2.21-05 Immunology
Fingerprint
Dive into the research topics of 'Stunning of neutrophils accounts for the anti-inflammatory effects of clodronate liposomes'. Together they form a unique fingerprint.Projects
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CRC 1526, PANTAU: Pathomechanisms of Antibody-mediated Autoimmunity
Sadik, C. (Speaker), Zillikens, D. (Speaker), Scheffold, A. (Principal Investigator (PI)), Schmidt, E. (Principal Investigator (PI)), Heine, G. (Principal Investigator (PI)), Manz, R. (Principal Investigator (PI)), Köhl, J. (Principal Investigator (PI)), Ludwig, R. (Principal Investigator (PI)), Peipp, M. (Principal Investigator (PI)), Hammers, M. C. (Principal Investigator (PI)), Verschoor, A. (Principal Investigator (PI)), Karsten, C. (Principal Investigator (PI)), Nimmerjahn, F. (Principal Investigator (PI)), Hutloff, A. (Principal Investigator (PI)), Ibrahim, S. (Principal Investigator (PI)), Wettschureck, N. (Principal Investigator (PI)), Bieber, K. (Principal Investigator (PI)), Schilf, P. (Principal Investigator (PI)), Vaeth, M. (Principal Investigator (PI)), Hirose, M. (Principal Investigator (PI)), Vaeth, M. (Principal Investigator (PI)), Baines, J. F. (Principal Investigator (PI)), Bacher, P. (Principal Investigator (PI)), Hoffmann, M. (Principal Investigator (PI)), Busch, H. S. (Principal Investigator (PI)), Höppner, M. (Principal Investigator (PI)), Becker, M. (Principal Investigator (PI)), Holtsche, M. M. (Principal Investigator (PI)), Fähnrich, A. (Principal Investigator (PI)), Szymczak, S. (Principal Investigator (PI)), Murthy, S. (Principal Investigator (PI)) & Lux, A. (Principal Investigator (PI))
01.01.22 → …
Project: DFG Joint Research › DFG Collaborative Research Centers (CRC)
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