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Lee S, Ye Q, Yang H, Lee S, Kim Y, Lee N, Gonzalez-Cox D, Yi DK, Kim SY, Choi S, Choi T, Kim MS, Hong SS, Choi CW, Lee Y, Park YH. Aiouea padiformis extract exhibits anti-inflammatory effects by inhibiting the ATPase activity of NLRP3. Sci Rep 2024; 14:5237. [PMID: 38433281 PMCID: PMC10909851 DOI: 10.1038/s41598-024-55651-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Accepted: 02/26/2024] [Indexed: 03/05/2024] Open
Abstract
Inflammation is implicated as a cause in many diseases. Most of the anti-inflammatory agents in use are synthetic and there is an unmet need for natural substance-derived anti-inflammatory agents with minimal side effects. Aiouea padiformis belongs to the Lauraceae family and is primarily found in tropical regions. While some members of the Aiouea genus are known to possess anti-inflammatory properties, the anti-inflammatory properties of Aiouea padiformis extract (AP) have not been investigated. In this study, we aimed to examine the anti-inflammatory function of AP through the NOD-, LRR- and pyrin domain-containing protein 3 (NLRP3) inflammasome and elucidate the underlying mechanisms. Treatment with AP inhibited the secretion of interleukin-1 beta (IL-1β) mediated by NLRP3 inflammasome in J774A.1 and THP-1 cells without affecting the viability. In addition, AP treatment did not influence NF-κB signaling, potassium efflux, or intracellular reactive oxygen species (ROS) production-all of which are associated with NLRP3 inflammasome activation. However, intriguingly, AP treatment significantly reduced the ATPase activity of NLRP3, leading to the inhibition of ASC oligomerization and speck formation. Consistent with cellular experiments, the anti-inflammatory property of AP in vivo was also evaluated using an LPS-induced inflammation model in zebrafish, demonstrating that AP hinders NLRP3 inflammasome activation.
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Affiliation(s)
- Sumin Lee
- Department of Microbiology, Ajou University School of Medicine, Suwon, 16499, Republic of Korea
- Department of Biomedical Sciences, Graduate School of Ajou University, Suwon, Republic of Korea
| | - Qianying Ye
- Department of Biomedical Science and Technology, Kyung Hee University, Seoul, 02447, Republic of Korea
| | - Hyeyun Yang
- Department of Microbiology, Ajou University School of Medicine, Suwon, 16499, Republic of Korea
- Department of Biomedical Sciences, Graduate School of Ajou University, Suwon, Republic of Korea
| | - Sojung Lee
- Department of Microbiology, Ajou University School of Medicine, Suwon, 16499, Republic of Korea
- Department of Biomedical Sciences, Graduate School of Ajou University, Suwon, Republic of Korea
| | - YeJi Kim
- Department of Microbiology, Ajou University School of Medicine, Suwon, 16499, Republic of Korea
- Department of Biomedical Sciences, Graduate School of Ajou University, Suwon, Republic of Korea
| | - Nahyun Lee
- Clinical Research Institute, Kyung Hee University Hospital at Gangdong, School of Medicine, Kyung Hee University, Seoul, 05278, Republic of Korea
| | - Darwin Gonzalez-Cox
- Herbarium of National Autonomous University of Nicaragua at Leon, Leon, 21000, Nicaragua
| | - Dong-Keun Yi
- International Biological Material Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, 34141, Republic of Korea
| | - Soo-Yong Kim
- International Biological Material Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, 34141, Republic of Korea
| | - Sangho Choi
- International Biological Material Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, 34141, Republic of Korea
| | - Taesoo Choi
- Department of Urology, School of Medicine, Kyung Hee University, Seoul, 05278, Republic of Korea
| | - Man S Kim
- Clinical Research Institute, Kyung Hee University Hospital at Gangdong, School of Medicine, Kyung Hee University, Seoul, 05278, Republic of Korea
| | - Seong Su Hong
- Natural Product Research Team, Gyeonggi Bio-Center, Suwon, Republic of Korea
| | - Chun Whan Choi
- Natural Product Research Team, Gyeonggi Bio-Center, Suwon, Republic of Korea.
| | - Yoonsung Lee
- Clinical Research Institute, Kyung Hee University Hospital at Gangdong, School of Medicine, Kyung Hee University, Seoul, 05278, Republic of Korea.
| | - Yong Hwan Park
- Department of Microbiology, Ajou University School of Medicine, Suwon, 16499, Republic of Korea.
- Department of Biomedical Sciences, Graduate School of Ajou University, Suwon, Republic of Korea.
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Saenz-Garcia JL, Borges BS, Souza-Melo N, Machado LV, Miranda JS, Pacheco-Lugo LA, Moretti NS, Wheleer R, Soares Medeiros LC, DaRocha WD. Trypanin Disruption Affects the Motility and Infectivity of the Protozoan Trypanosoma cruzi. Front Cell Infect Microbiol 2022; 11:807236. [PMID: 35071054 PMCID: PMC8777028 DOI: 10.3389/fcimb.2021.807236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Accepted: 12/09/2021] [Indexed: 11/13/2022] Open
Abstract
The flagellum of Trypanosomatids is an organelle that contributes to multiple functions, including motility, cell division, and host–pathogen interaction. Trypanin was first described in Trypanosoma brucei and is part of the dynein regulatory complex. TbTrypanin knockdown parasites showed motility defects in procyclic forms; however, silencing in bloodstream forms was lethal. Since TbTrypanin mutants show drastic phenotypic changes in mammalian stages, we decided to evaluate if the Trypanosoma cruzi ortholog plays a similar role by using the CRISPR-Cas9 system to generate null mutants. A ribonucleoprotein complex of SaCas9 and sgRNA plus donor oligonucleotide were used to edit both alleles of TcTrypanin without any selectable marker. TcTrypanin −/− epimastigotes showed a lower growth rate, partially detached flagella, normal numbers of nuclei and kinetoplasts, and motility defects such as reduced displacement and speed and increased tumbling propensity. The epimastigote mutant also showed decreased efficiency of in-vitro metacyclogenesis. Mutant parasites were able to complete the entire life cycle in vitro; however, they showed a reduction in their infection capacity compared with WT and addback cultures. Our data show that T. cruzi life cycle stages have differing sensitivities to TcTrypanin deletion. In conclusion, additional work is needed to dissect the motility components of T. cruzi and to identify essential molecules for mammalian stages.
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Affiliation(s)
- Jose L Saenz-Garcia
- Laboratório de Genômica Funcional de Parasitos (GFP), Universidade Federal de Paraná, Curitiba, Brazil
| | - Beatriz S Borges
- Laboratório de Biologia Celular, Instituto Carlos Chagas, Fundação Oswaldo Cruz (Fiocruz), Curitiba, Brazil
| | - Normanda Souza-Melo
- Laboratório de Biologia Molecular de Patógenos (LBMP), Departamento de Microbiologia, Imunologia e Parasitologia, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil.,Laboratório de Ultraestrutura Hertha Mayer, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Luiz V Machado
- Laboratório de Genômica Funcional de Parasitos (GFP), Universidade Federal de Paraná, Curitiba, Brazil
| | - Juliana S Miranda
- Laboratório de Genômica Funcional de Parasitos (GFP), Universidade Federal de Paraná, Curitiba, Brazil
| | | | - Nilmar S Moretti
- Laboratório de Biologia Molecular de Patógenos (LBMP), Departamento de Microbiologia, Imunologia e Parasitologia, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Richard Wheleer
- Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom
| | - Lia C Soares Medeiros
- Laboratório de Biologia Celular, Instituto Carlos Chagas, Fundação Oswaldo Cruz (Fiocruz), Curitiba, Brazil
| | - Wanderson D DaRocha
- Laboratório de Genômica Funcional de Parasitos (GFP), Universidade Federal de Paraná, Curitiba, Brazil
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Acrylonitrile Derivatives against Trypanosoma cruzi: In Vitro Activity and Programmed Cell Death Study. Pharmaceuticals (Basel) 2021; 14:ph14060552. [PMID: 34207767 PMCID: PMC8228537 DOI: 10.3390/ph14060552] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Revised: 06/02/2021] [Accepted: 06/04/2021] [Indexed: 01/29/2023] Open
Abstract
The neglected infection known as Chagas disease, caused by the protozoan parasite Trypanosoma cruzi, results in more than 7000 deaths per year, with an increasing number of cases in non-endemic areas such as Europe or the United States. Moreover, with the current available therapy, only two compounds which are active against the acute phase of the disease are readily available. In addition, these therapeutic agents display multiple undesired side effects such as high toxicity, they are expensive, the treatment is lengthy and the resistant strain has emerged. Therefore, there is a need to find new compounds against Chagas disease which should be active against the parasite but also cause low toxicity to the patients. In the present work, the activity of novel acrylonitriles against Trypanosoma cruzi was evaluated as well as the analysis of the physiological events induced in the treated parasites related to the cell death process. Hence, the characteristic features of an apoptosis-like process such as chromatin condensation and mitochondrial membrane potential, among others, were studied. From the 32 compounds tested against the epimastigote stage of T. cruzi, 11 were selected based on their selectivity index to determine if these compounds were able to induce programmed cell death (PCD) in the treated parasites. Furthermore, acrylonitriles Q5, Q7, Q19, Q27 and Q29 were shown to trigger physiological events related in the PCD. Therefore, this study highlights the therapeutic potential of acrylonitriles as novel trypanocidal agents.
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