Abstract

Tumor necrosis factor receptor 2 (TNFR2) is known to mediate immune suppression and tissue regeneration. Interestingly, the transmembrane form of tumor necrosis factor (tmTNF) is necessary to robustly activate TNFR2. To characterize the stoichiometry and composition of tmTNF during TNFR2 activation, we constructed differently oligomerized single chain TNF ligands (scTNF) comprised of three TNF homology domain (THD) protomers that mimic tmTNF. Using a variety of cellular and in vivo assays, we can show that higher oligomerization of the scTNF trimers results in more efficient TNF/TNFR2 clustering and subsequent signal transduction. Importantly, the three-dimensional orientation of the scTNF trimers impacts the bioactivity of the oligomerized scTNF ligands. Our data unravel the organization of tmTNF-mimetic scTNF ligands capable of robustly activating TNFR2 and introduce novel TNFR2 agonists that hold promise as therapeutics to treat a variety of diseases.

Details

Title
Novel strategies to mimic transmembrane tumor necrosis factor-dependent activation of tumor necrosis factor receptor 2
Author
Fischer, Roman 1 ; Marsal, Jessica 2 ; Guttà, Cristiano 2 ; Eisler, Stephan A 3 ; Peters, Nathalie 2 ; Bethea, John R 4 ; Pfizenmaier, Klaus 2 ; Kontermann, Roland E 2 

 Institute of Cell Biology and Immunology, University of Stuttgart, Allmandring 31, Stuttgart, Germany; Department of Biology, Drexel University, Philadelphia, PA, USA 
 Institute of Cell Biology and Immunology, University of Stuttgart, Allmandring 31, Stuttgart, Germany 
 Stuttgart Research Center Systems Biology, Nobelstraße 15, University of Stuttgart, Stuttgart, Germany 
 Department of Biology, Drexel University, Philadelphia, PA, USA 
Pages
1-13
Publication year
2017
Publication date
Jul 2017
Publisher
Nature Publishing Group
e-ISSN
20452322
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
1956173537
Copyright
© 2017. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.