PMID- 31586128 OWN - NLM STAT- MEDLINE DCOM- 20201111 LR - 20210110 IS - 2045-2322 (Electronic) IS - 2045-2322 (Linking) VI - 9 IP - 1 DP - 2019 Oct 4 TI - VU0155069 inhibits inflammasome activation independent of phospholipase D1 activity. PG - 14349 LID - 10.1038/s41598-019-50806-9 [doi] LID - 14349 AB - The inflammasome is a specialized multiprotein oligomer that regulates IL-1beta production. Although regulation of the inflammasome is related to crucial inflammatory disorders such as sepsis, pharmacological inhibitors that effectively inhibit inflammasome activity are limited. Here, we evaluated the effects of a phospholipase D1 (PLD1)-selective inhibitor (VU0155069) against sepsis and inflammasome activation. VU0155069 strongly enhances survival rate in cecal ligation and puncture (CLP)-induced sepsis by inhibiting lung inflammation, leukocyte apoptosis, and the production of proinflammatory cytokines, especially IL-1beta. VU0155069 also significantly blocked IL-1beta production, caspase-1 activation, and pyroptosis caused by several inflammasome-activating signals in the bone marrow-derived macrophages (BMDMs). However, VU0155069 did not affect LPS-induced activation of signaling molecules such as MAPK, Akt, NF-kappaB, and NLRP3 expression in the BMDMs. VU0155069 also failed to affect mitochondrial ROS generation and calcium increase caused by nigericin or ATP, and subsequent ASC oligomerization caused by several inflammasome-activating signals. VU0155069 indirectly inhibited caspase-1 activity caused by LPS + nigericin in BMDMs independent of PLD1 activity. We demonstrated that a PLD1 inhibitor, VU0155069, shows anti-septic activity as well as inflammasome-inhibiting effects. Our results suggest that VU0155069 can be considered a novel inflammasome inhibitor. FAU - Lee, Sung Kyun AU - Lee SK AUID- ORCID: 0000-0001-8130-7431 AD - Department of Biological Sciences, Sungkyunkwan University, Suwon, 16419, Republic of Korea. AD - Institute for Stem Cell & Regenerative Medicine Research of Albert Einstein College of Medicine, Bronx, NY, 10461, USA. FAU - Kim, Ye Seon AU - Kim YS AD - Department of Biological Sciences, Sungkyunkwan University, Suwon, 16419, Republic of Korea. FAU - Bae, Geon Ho AU - Bae GH AD - Department of Biological Sciences, Sungkyunkwan University, Suwon, 16419, Republic of Korea. FAU - Lee, Ha Young AU - Lee HY AD - Department of Biological Sciences, Sungkyunkwan University, Suwon, 16419, Republic of Korea. FAU - Bae, Yoe-Sik AU - Bae YS AD - Department of Biological Sciences, Sungkyunkwan University, Suwon, 16419, Republic of Korea. yoesik@skku.edu. AD - Department of Health Sciences and Technology, SAIHST, Sungkyunkwan University, Seoul, 06351, Republic of Korea. yoesik@skku.edu. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20191004 PL - England TA - Sci Rep JT - Scientific reports JID - 101563288 RN - 0 (Anti-Inflammatory Agents) RN - 0 (Benzimidazoles) RN - 0 (IL1B protein, mouse) RN - 0 (Inflammasomes) RN - 0 (Interleukin-1beta) RN - 0 (Lipopolysaccharides) RN - 0 (N-(1-(4-(5-chloro-2-oxo-2,3-dihydro-1H-benzo(d)imidazol-1-yl)piperidin-1-yl)propan-2-yl)-2-naphthamide) RN - 0 (Piperidines) RN - 0 (Reactive Oxygen Species) RN - EC 3.1.4.4 (Phospholipase D) RN - EC 3.1.4.4 (phospholipase D1) RN - EC 3.4.22.36 (Caspase 1) SB - IM MH - Animals MH - Anti-Inflammatory Agents/*pharmacology/therapeutic use MH - Benzimidazoles/*pharmacology/therapeutic use MH - Caspase 1/metabolism MH - Disease Models, Animal MH - Humans MH - Inflammasomes/*antagonists & inhibitors/immunology/metabolism MH - Interleukin-1beta/metabolism MH - Lipopolysaccharides/immunology MH - Mice MH - Mice, Knockout MH - Phospholipase D/antagonists & inhibitors/genetics MH - Piperidines/*pharmacology/therapeutic use MH - Pyroptosis/drug effects/immunology MH - Reactive Oxygen Species/metabolism MH - Sepsis/*drug therapy/immunology/pathology MH - Signal Transduction/drug effects/immunology PMC - PMC6778193 COIS- The authors declare no competing interests. EDAT- 2019/10/06 06:00 MHDA- 2020/11/12 06:00 PMCR- 2019/10/04 CRDT- 2019/10/06 06:00 PHST- 2019/05/13 00:00 [received] PHST- 2019/09/19 00:00 [accepted] PHST- 2019/10/06 06:00 [entrez] PHST- 2019/10/06 06:00 [pubmed] PHST- 2020/11/12 06:00 [medline] PHST- 2019/10/04 00:00 [pmc-release] AID - 10.1038/s41598-019-50806-9 [pii] AID - 50806 [pii] AID - 10.1038/s41598-019-50806-9 [doi] PST - epublish SO - Sci Rep. 2019 Oct 4;9(1):14349. doi: 10.1038/s41598-019-50806-9.