A10 - Cell death and inflammation modulated by the ubiquitin E3 ligase activities within LUBAC in metabolic inflammation
Nieves Peltzer
Institute of Biomedical Genetics, University of Stuttgart
Contact: m.peltzer(at)uni-koeln.de
For more information visit: Peltzer lab
Abstract
Receptor-ligand-mediated signalling in cell death, inflammation and immunity is regulated by a fine-tuned system of post-translational modifications by phosphorylation, ubiquitination and their respective reversals. The linear ubiquitin chain assembly complex (LUBAC) modulates signalling via the tumour necrosis factor (TNF) – TNF receptor 1 (TNFR1) system. We found LUBAC and the linear ubiquitin chains it creates to be crucial for the different TNFR1 signalling outputs by enabling full gene activation and preventing cell death. These studies contributed to establishing cell death as a trigger of inflammation and inflammatory disease. In this project we aim to understand and further dissect the biochemistry and function of LUBAC and and its individual components in physiology and in various disease settings.
Recent Publications
Chen YG, Rieser E, Bhamra A, Surinova S, Kreuzaler P, Ho MH, Tsai WC, Peltzer N, de Miguel D, Walczak H. LUBAC enables tumor-promoting LTβ receptor signaling by activating canonical NF-κB. Cell Death Differ. 2024 Aug 30. doi: 10.1038/s41418-024-01355-w. Epub ahead of print. PMID: 39215104.
Veli Ö, Kaya Ö, Varanda AB, Hildebrandt X, Xiao P, Estornes Y, Poggenberg M, Wang Y, Pasparakis M, Bertrand MJM, Walczak H, Annibaldi A, Cardozo AK, Peltzer N. RIPK1 is dispensable for cell death regulation in β-cells during hyperglycemia. Mol Metab. 2024 Jul 12:101988. doi: 10.1016/j.molmet.2024.101988. Epub ahead of print. PMID: 39004142.
Oda H, Manthiram K, Chavan PP, Rieser E, Veli Ö, Kaya Ö, Rauch C, Nakabo S, Kuehn HS, Swart M, Wang Y, Çelik NI, Molitor A, Ziaee V, Movahedi N, Shahrooei M, Biallelic human SHARPIN loss of function induces autoinflammation and immunodeficiency. Nat Immunol. 2024 Apr 12. doi: 10.1038/s41590-024-01817-w. Epub ahead of print. PMID: 38609546.
Albert MC, Uranga-Murillo I, Arias M, De Miguel D, Peña N, Montinaro A, Varanda AB, Theobald SJ, Areso I, Saggau J, Koch M, Liccardi G, Peltzer N, Rybniker J, Hurtado-Guerrero R, Merino P, Monzón M, Badiola JJ, Reindl-Schwaighofer R, Sanz-Pamplona R, Cebollada-Solanas A, Megyesfalvi Z, Dome B, Secrier M, Hartmann B, Bergmann M, Pardo J, Walczak H. Identification of FasL as a crucial host factor driving COVID-19 pathology and lethality. Cell Death Differ. 2024 Mar 21. doi: 10.1038/s41418-024-01278-6. Epub ahead of print. PMID: 38514848