Human ZBP1 induces cell death-independent inflammatory signaling via RIPK3 and RIPK1
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Human ZBP1 induces cell death-independent inflammatory signaling via RIPK3 and RIPK1. / Peng, Ruoshi; Wang, Chris Kedong; Wang-Kan, Xuan; Idorn, Manja; Kjær, Majken; Zhou, Felix Y.; Fiil, Berthe Katrine; Timmermann, Frederik; Orozco, Susana L.; McCarthy, Julia; Leung, Carol S.; Lu, Xin; Bagola, Katrin; Rehwinkel, Jan; Oberst, Andrew; Maelfait, Jonathan; Paludan, Søren R.; Gyrd-Hansen, Mads.
In: EMBO Reports, Vol. 2022, No. 23, e55839, 2022.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Human ZBP1 induces cell death-independent inflammatory signaling via RIPK3 and RIPK1
AU - Peng, Ruoshi
AU - Wang, Chris Kedong
AU - Wang-Kan, Xuan
AU - Idorn, Manja
AU - Kjær, Majken
AU - Zhou, Felix Y.
AU - Fiil, Berthe Katrine
AU - Timmermann, Frederik
AU - Orozco, Susana L.
AU - McCarthy, Julia
AU - Leung, Carol S.
AU - Lu, Xin
AU - Bagola, Katrin
AU - Rehwinkel, Jan
AU - Oberst, Andrew
AU - Maelfait, Jonathan
AU - Paludan, Søren R.
AU - Gyrd-Hansen, Mads
N1 - Publisher Copyright: © 2022 The Authors. Published under the terms of the CC BY 4.0 license.
PY - 2022
Y1 - 2022
N2 - ZBP1 is an interferon-induced cytosolic nucleic acid sensor that facilitates antiviral responses via RIPK3. Although ZBP1-mediated programmed cell death is widely described, whether and how it promotes inflammatory signaling is unclear. Here, we report a ZBP1-induced inflammatory signaling pathway mediated by K63- and M1-linked ubiquitin chains, which depends on RIPK1 and RIPK3 as scaffolds independently of cell death. In human HT29 cells, ZBP1 associated with RIPK1 and RIPK3 as well as ubiquitin ligases cIAP1 and LUBAC. ZBP1-induced K63- and M1-linked ubiquitination of RIPK1 and ZBP1 to promote TAK1- and IKK-mediated inflammatory signaling and cytokine production. Inhibition of caspase activity suppressed ZBP1-induced cell death but enhanced cytokine production in a RIPK1- and RIPK3 kinase activity-dependent manner. Lastly, we provide evidence that ZBP1 signaling contributes to SARS-CoV-2-induced cytokine production. Taken together, we describe a ZBP1-RIPK3-RIPK1-mediated inflammatory signaling pathway relayed by the scaffolding role of RIPKs and regulated by caspases, which may induce inflammation when ZBP1 is activated below the threshold needed to trigger a cell death response.
AB - ZBP1 is an interferon-induced cytosolic nucleic acid sensor that facilitates antiviral responses via RIPK3. Although ZBP1-mediated programmed cell death is widely described, whether and how it promotes inflammatory signaling is unclear. Here, we report a ZBP1-induced inflammatory signaling pathway mediated by K63- and M1-linked ubiquitin chains, which depends on RIPK1 and RIPK3 as scaffolds independently of cell death. In human HT29 cells, ZBP1 associated with RIPK1 and RIPK3 as well as ubiquitin ligases cIAP1 and LUBAC. ZBP1-induced K63- and M1-linked ubiquitination of RIPK1 and ZBP1 to promote TAK1- and IKK-mediated inflammatory signaling and cytokine production. Inhibition of caspase activity suppressed ZBP1-induced cell death but enhanced cytokine production in a RIPK1- and RIPK3 kinase activity-dependent manner. Lastly, we provide evidence that ZBP1 signaling contributes to SARS-CoV-2-induced cytokine production. Taken together, we describe a ZBP1-RIPK3-RIPK1-mediated inflammatory signaling pathway relayed by the scaffolding role of RIPKs and regulated by caspases, which may induce inflammation when ZBP1 is activated below the threshold needed to trigger a cell death response.
KW - inflammatory signaling
KW - RIPK1
KW - RIPK3
KW - SARS-CoV-2
KW - ZBP1
U2 - 10.15252/embr.202255839
DO - 10.15252/embr.202255839
M3 - Journal article
C2 - 36268590
AN - SCOPUS:85140124395
VL - 2022
JO - E M B O Reports
JF - E M B O Reports
SN - 1469-221X
IS - 23
M1 - e55839
ER -
ID: 323969359