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Cell Death Dis ; 15(5): 360, 2024 May 24.
Article in English | MEDLINE | ID: mdl-38789414

ABSTRACT

Disseminated intravascular coagulation (DIC) is considered to be the most common and lethal complication of sepsis. NLR-family pyrin domain-containing-3 (NLRP3) inflammasome plays an important role in host defense against microbial pathogens, and its deregulation may cause coagulation cascade and should be strictly managed. Here, we identified the deubiquitinase YOD1, which played a vital role in regulating coagulation in a NLRP3 inflammasome-dependent manner in sepsis induced by methicillin-resistant Staphylococcus aureus (MRSA). YOD1 interacted with NLRP3 to remove K33-linked ubiquitination of NLRP3 based on its deubiquitinating enzyme activity and specifically inhibited expression of NLRP3 as well as activation of NLRP3 inflammasome. Deficiency of YOD1 expression enhanced NLRP3 inflammasome activation and coagulation both in vitro and in vivo. In addition, pharmacological inhibition of the NLRP3 effectively improved coagulation and alleviated organ injury in Yod1-/- mice infected with MRSA. Thus, our study reported that YOD1 is a key regulator of coagulation during MRSA infection, and provided YOD1 as a potential therapeutic target for the treatment of NLRP3 inflammasome-related diseases, especially MRSA sepsis-induced DIC.


Subject(s)
Disseminated Intravascular Coagulation , Inflammasomes , Methicillin-Resistant Staphylococcus aureus , NLR Family, Pyrin Domain-Containing 3 Protein , Sepsis , Ubiquitination , Animals , Humans , Male , Mice , Disseminated Intravascular Coagulation/metabolism , Disseminated Intravascular Coagulation/pathology , Disseminated Intravascular Coagulation/microbiology , HEK293 Cells , Inflammasomes/metabolism , Lysine/metabolism , Mice, Inbred C57BL , Mice, Knockout , NLR Family, Pyrin Domain-Containing 3 Protein/metabolism , Sepsis/microbiology , Sepsis/complications , Sepsis/metabolism , Staphylococcal Infections/microbiology , Staphylococcal Infections/metabolism
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