Title : CASPorter: A Novel Inducible Human CASP1/NALP3/ASC Inflammasome Biosensor.

Pub. Date : 2022

PMID : 35221708






11 Functional Relationships(s)
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1 Methods: A Dox-controlled system was utilized to induce the expression of the ASC transgene in HEK293 cells while simultaneously overexpressing NLRP3 and CASP1. Doxorubicin NLR family pyrin domain containing 3 Homo sapiens
2 The applicability and effectiveness of the CASPorter cell line were tested by co-treatment with Dox and four known CASP1/NLRP3 inhibitors (MCC950, Glyburide, VX-765 and VRT-043198). Doxorubicin NLR family pyrin domain containing 3 Homo sapiens
3 Results: Dox treatment significantly induced ASC expression and increased levels of cleaved and catalytically active CASP1, co-IPs further demonstrated that CASP1 was pulled-down with NLRP3 in HEK293-iASC-NLRP3/CASP1 cells after induction of ASC by Dox treatment. Doxorubicin NLR family pyrin domain containing 3 Homo sapiens
4 Results: Dox treatment significantly induced ASC expression and increased levels of cleaved and catalytically active CASP1, co-IPs further demonstrated that CASP1 was pulled-down with NLRP3 in HEK293-iASC-NLRP3/CASP1 cells after induction of ASC by Dox treatment. Doxorubicin NLR family pyrin domain containing 3 Homo sapiens
5 Results: Dox treatment significantly induced ASC expression and increased levels of cleaved and catalytically active CASP1, co-IPs further demonstrated that CASP1 was pulled-down with NLRP3 in HEK293-iASC-NLRP3/CASP1 cells after induction of ASC by Dox treatment. Doxorubicin NLR family pyrin domain containing 3 Homo sapiens
6 Results: Dox treatment significantly induced ASC expression and increased levels of cleaved and catalytically active CASP1, co-IPs further demonstrated that CASP1 was pulled-down with NLRP3 in HEK293-iASC-NLRP3/CASP1 cells after induction of ASC by Dox treatment. Doxorubicin NLR family pyrin domain containing 3 Homo sapiens
7 In HEK293-iASC-NLRP3/CASP1-CASPorter cell system, cleavage of the CASP1 consensus site (YVAD) in the CASPorter protein after Dox treatment causing excitation/emission of green fluorescence and the 71% GFP+ cell population increase quantified by FC (78.1% vs 6.90%). Doxorubicin NLR family pyrin domain containing 3 Homo sapiens
8 Dox-induced activation of the NLRP3 inflammasome was dose-dependently inhibited by Dox co-treatment with four known CASP1/NLRP3 inhibitors. Doxorubicin NLR family pyrin domain containing 3 Homo sapiens
9 Dox-induced activation of the NLRP3 inflammasome was dose-dependently inhibited by Dox co-treatment with four known CASP1/NLRP3 inhibitors. Doxorubicin NLR family pyrin domain containing 3 Homo sapiens
10 Dox-induced activation of the NLRP3 inflammasome was dose-dependently inhibited by Dox co-treatment with four known CASP1/NLRP3 inhibitors. Doxorubicin NLR family pyrin domain containing 3 Homo sapiens
11 Dox-induced activation of the NLRP3 inflammasome was dose-dependently inhibited by Dox co-treatment with four known CASP1/NLRP3 inhibitors. Doxorubicin NLR family pyrin domain containing 3 Homo sapiens