Epigenetic regulation of nitric oxide synthase 2, inducible (Nos2) by NLRC4 inflammasomes involves PARP1 cleavage
dc.citation.volume | 7 | |
dc.contributor.author | Buzzo, Carina de Lima [UNIFESP] | |
dc.contributor.author | Medina, Tiago | |
dc.contributor.author | Branco, Laura M. [UNIFESP] | |
dc.contributor.author | Lage, Silvia L. [UNIFESP] | |
dc.contributor.author | de Souza Ferreira, Luis Carlos | |
dc.contributor.author | Amarante-Mendes, Gustavo P. | |
dc.contributor.author | Hottiger, Michael O. | |
dc.contributor.author | De Carvalho, Daniel D. | |
dc.contributor.author | Bortoluci, Karina R. [UNIFESP] | |
dc.coverage | London | |
dc.date.accessioned | 2020-07-17T14:03:00Z | |
dc.date.available | 2020-07-17T14:03:00Z | |
dc.date.issued | 2017 | |
dc.description.abstract | Nitric oxide synthase 2, inducible (Nos2) expression is necessary for the microbicidal activity of macrophages. However, NOS2 over-activation causes multiple inflammatory disorders, suggesting a tight gene regulation is necessary. Using cytosolic flagellin as a model for inflammasome-dependent NOS2 activation, we discovered a surprising new role for NLRC4/caspase-1 axis in regulating chromatin accessibility of the Nos2 promoter. We found that activation of two independent mechanisms is necessary for NOS2 expression by cytosolic flagellin: caspase-1 and NF-kappa B activation. NF-kappa B activation was necessary, but not sufficient, for NOS2 expression. Conversely, caspase-1 was necessary for NOS2 expression, but dispensable for NF-kappa B activation, indicating that this protease acts downstream NF-kappa B activation. We demonstrated that epigenetic regulation of Nos2 by caspase-1 involves cleavage of the chromatin regulator PARP1 (also known as ARTD1) and chromatin accessibility of the NF-kappa B binding sites located at the Nos2 promoter. Remarkably, caspase-1-mediated Nos2 transcription and NO production contribute to the resistance of macrophages to Salmonella typhimurium infection. Our results uncover the molecular mechanism behind the constricted regulation of Nos2 expression and open new therapeutic opportunities based on epigenetic activities of caspase-1 against infectious and inflammatory diseases. | en |
dc.description.affiliation | Univ Fed Sao Paulo, Ctr Terapia Celular & Mol CTC Mol, Sao Paulo, Brazil | |
dc.description.affiliation | Univ Fed Sao Paulo, Dept Ciencias Biol, Sao Paulo, Brazil | |
dc.description.affiliation | Univ Sao Paulo, Inst Ciencias Biomed, Dept Microbiol, Sao Paulo, Brazil | |
dc.description.affiliation | Univ Hlth Network, Princess Margaret Canc Ctr, Toronto, ON M5G 2M9, Canada | |
dc.description.affiliation | Univ Sao Paulo, Inst Ciencias Biomed, Sao Paulo & Inst Invest Imunol, Inst Nacl Ciencia Tecnol INCT 3, Sao Paulo, Brazil | |
dc.description.affiliation | Inst Nacl Ciencia Tecnol INCT III, Inst Invest Imunol, Sao Paulo, Brazil | |
dc.description.affiliation | Univ Zurich, Dept Mol Mech Dis, Zurich, Switzerland | |
dc.description.affiliation | Univ Toronto, Dept Med Biophys, Toronto, ON M5G 2M9, Canada | |
dc.description.affiliationUnifesp | Univ Fed Sao Paulo, Ctr Terapia Celular & Mol CTC Mol, Sao Paulo, Brazil | |
dc.description.affiliationUnifesp | Univ Fed Sao Paulo, Dept Ciencias Biol, Sao Paulo, Brazil | |
dc.description.provenance | Made available in DSpace on 2020-07-17T14:03:00Z (GMT). No. of bitstreams: 0 Previous issue date: 2017. Added 1 bitstream(s) on 2020-07-17T14:33:33Z : No. of bitstreams: 1 WOS000393651700001.pdf: 1648162 bytes, checksum: e0faa9ac793573157b2a73818bf67955 (MD5) | en |
dc.description.source | Web of Science | |
dc.description.sponsorship | Kanton of Zurich | |
dc.description.sponsorship | University Research Priority Program (URPP) in Translational Cancer Biology at the University of Zurich | |
dc.description.sponsorship | Swiss National Science Foundation | |
dc.description.sponsorship | Cancer Research Society | |
dc.description.sponsorship | Canadian Cancer Society | |
dc.description.sponsorship | NSERC | |
dc.description.sponsorship | Ontario Institute for Cancer Research (OICR) | |
dc.description.sponsorship | province of Ontario | |
dc.description.sponsorship | Princess Margaret Cancer Foundation | |
dc.description.sponsorship | University of Toronto McLaughlin Centre | |
dc.description.sponsorship | Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP - Brazil) | |
dc.description.sponsorship | Brazilian Research Council (CNPq-Brazil) | |
dc.description.sponsorship | CAPES | |
dc.description.sponsorship | INCTV | |
dc.description.sponsorshipID | Swiss National Science Foundation: 310030B_138667 | |
dc.description.sponsorshipID | Cancer Research Society: CRS19092 | |
dc.description.sponsorshipID | Cancer Research Society: CRS19091 | |
dc.description.sponsorshipID | Canadian Cancer Society: CCSRI 703279 | |
dc.description.sponsorshipID | Canadian Cancer Society CCSRI 703716 | |
dc.description.sponsorshipID | NSERC: 489073 | |
dc.description.sponsorshipID | University of Toronto McLaughlin Centre: MC-2015-02 | |
dc.description.sponsorshipID | FAPESP: 2013/16010-5 | |
dc.description.sponsorshipID | FAPESP: 2015/18003-1 | |
dc.format.extent | - | |
dc.identifier | http://dx.doi.org/10.1038/srep41686 | |
dc.identifier.citation | Scientific Reports. London, v. 7, p. -, 2017. | |
dc.identifier.doi | 10.1038/srep41686 | |
dc.identifier.file | WOS000393651700001.pdf | |
dc.identifier.issn | 2045-2322 | |
dc.identifier.uri | https://repositorio.unifesp.br/handle/11600/55124 | |
dc.identifier.wos | WOS:000393651700001 | |
dc.language.iso | eng | |
dc.publisher | Nature Publishing Group | |
dc.relation.ispartof | Scientific Reports | |
dc.rights | Acesso aberto | |
dc.title | Epigenetic regulation of nitric oxide synthase 2, inducible (Nos2) by NLRC4 inflammasomes involves PARP1 cleavage | en |
dc.type | Artigo |
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