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B01 - Role of apoptotic caspases in macrophage-mediated anti-bacterial immunity

Hamid Kashkar

Institute for Medical Microbiology, Immunology and Hygiene, CECAD
Contact: h.kashkarSpamProtectionuni-koeln.de
For more information visit: Kashkar lab

Abstract

Macrophages are key players in host defence, inflammation, tissue homeostasis and repair. Different modes of macrophage death including apoptosis, necroptosis and pyroptosis have been described, in particular upon interaction with bacterial pathogens. Recent observations strongly indicated that pro-apoptotic caspase activity is a versatile cellular tool that can cause different cellular outcomes by acting as a switch regulating different modes of cell death. This project will investigate the role of pro-apoptotic caspases in macrophage-mediated anti-bacterial immunity.

Recent Publications

2021

Geueke, A., Mantellato, G., Kueste, F., Schettina, P., Nelles, M., Seeger, J.M., Kashkar, H., & Niemann, C. (2021) The anti-apoptotic Bcl-2 protein regulates hair follicle stem cell function. EMBO reports e52301 https://doi.org/10.15252/embr.202052301

2020

Mayer, C.T., Nieke, J.P., Gazumyan, A., Cipolla, M., Wang, Q., Oliveira, Y.T., Ramos, V., Monette, S., Li, Q.Z., Gershwin, M.E., Kashkar, H., Nussenzweig, M.C. (2020) An apoptosis-dependent checkpoint for autoimmunity in memory B and plasma cells. Proc Natl Acad Sci U S A [Epub ahead of print] https://doi.org/10.1073/pnas.2015372117

Albert, M.C., Brinkmann, K., Pokrzywa, W., Günther, S.D., Krönke, M., Hoppe, T. & Kashkar, H. (2020). CHIP ubiquitylates NOXA and induces its lysosomal degradation in response to DNA damage. Cell Death Dis 11, 740. https://doi.org/10.1038/s41419-020-02923-x

Schiffmann, L.M., Werthenbach, J.P., Heintges-Kleinhofer, F., Seeger, J.M., Fritsch, M., Günther, S.D., Willenborg,S., Brodesser,S., Lucas, C. Jüngst, C., Albert, M.C., Schorn, F.,Witt, A., Moraes, C.T., Bruns, C.J., Pasparakis, M., Krönke, M., Eming, S.A., Coutelle, O., Kashkar, H. (2020). Mitochondrial respiration controls neoangiogenesis during wound healing and tumour growth. Nat Comm. Volume 11, Article Number: 3653. https://doi.org/10.1038/s41467-020-17472-2

Günther SD, Fritsch M, Seeger JM, Schiffmann LM, Snipas SJ, Coutelle M, Kufer TA, Higgins PG, Hornung V, Bernardini ML, Höning S, Krönke M, Salvesen GS, Kashkar H. (2020) Cytosolic Gram-negative bacteria prevent apoptosis by inhibition of effector caspases through lipopolysaccharide. Nat. Microbiol. 5:354–367.  

Project related Publications