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Immunopathology and Trypanosoma congolense parasite sequestration cause acute cerebral trypanosomiasis

dc.contributor.authorDe Niz, Mariana
dc.contributor.authorSilva Pereira, Sara
dc.contributor.authorSerre, Karine
dc.contributor.authorOuarné, Marie
dc.contributor.authorCoelho, Joana E
dc.contributor.authorFranco, Claudio
dc.contributor.authorFigueiredo, Luisa M.
dc.date.accessioned2022-12-14T12:01:28Z
dc.date.available2022-12-14T12:01:28Z
dc.date.issued2022
dc.description© 2022, Silva Pereira, De Niz et al. This article is distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use and redistribution provided that the original author and source are credited.pt_PT
dc.description.abstractTrypanosoma congolense causes a syndrome of variable severity in animals in Africa. Cerebral trypanosomiasis is a severe form, but the mechanism underlying this severity remains unknown. We developed a mouse model of acute cerebral trypanosomiasis and characterized the cellular, behavioral, and physiological consequences of this infection. We show large parasite sequestration in the brain vasculature for long periods of time (up to 8 hr) and extensive neuropathology that associate with ICAM1-mediated recruitment and accumulation of T cells in the brain parenchyma. Antibody-mediated ICAM1 blocking and lymphocyte absence reduce parasite sequestration in the brain and prevent the onset of cerebral trypanosomiasis. Here, we establish a mouse model of acute cerebral trypanosomiasis and we propose a mechanism whereby parasite sequestration, host ICAM1, and CD4+ T cells play a pivotal role.pt_PT
dc.description.sponsorshipThis work was supported by European Union’s Horizon 2020 research and innovation program through a Marie Skłodowska-Curie Individual Standard European Fellowship to S.S.P., under grant agreement no. 839960, and from the European Research Council (ERC) (FatTryp, 771714) to L.M.F. M.D.N. was funded by Human Frontiers LT000047/2019 L (HFSP) and EMBO (ALTF 1048–2016). L.M.F., K.S., and C.A.F. are Investigators CEEC of the Fundação para a Ciência e a Tecnologia (CEECIND/03322/2018, CEECIND/00697/2018, CEECIND/04251/2017, respectively). C.A.F. was supported by a European Research Council starting grant (679368), the Fondation Leducq (17CVD03), and the Fundação para a Ciência e a Tecnologia (grants IF/00412/2012, EXPL/BEX- BCM/2258/2013, PRECISE-LISBOA-01–0145-FEDER-016394, PTDC/MED-PAT/31639/2017, PTDC/BIA-CEL/32180/2017).pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationElife. 2022 Jul 5;11:e77440pt_PT
dc.identifier.doi10.7554/eLife.77440pt_PT
dc.identifier.eissn2050-084X
dc.identifier.urihttp://hdl.handle.net/10451/55386
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publishereLife Sciences Publicationspt_PT
dc.relationPRECISE-LISBOA-01-0145-FEDER-016394pt_PT
dc.relationCharacterising Trypanosoma tissue tropism: new perspectives for variant surface glycoproteins
dc.relationExploring the hidden life of African trypanosomes: parasite fat tropism and implications for disease
dc.relationNot Available
dc.relationNot Available
dc.relationNot Available
dc.relationPRINCIPLES OF AXIAL POLARITY-DRIVEN VASCULAR PATTERNING
dc.relationDeregulated Endothelial Blood Flow Response as a cause of Diabetic Retinopathy
dc.relationIdentify the mechanisms of endothelial tip cell invasive behavior in order to inhibit physiological and pathological sprouting angiogenesis
dc.relation.publisherversionhttps://elifesciences.org/subjects/microbiology-infectious-diseasept_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectTrypanosoma congolensept_PT
dc.subjectCerebral trypanosomiasispt_PT
dc.subjectInfectious diseasept_PT
dc.subjectMicrobiologypt_PT
dc.subjectNaganapt_PT
dc.subjectSequestrationpt_PT
dc.subjectVirulencept_PT
dc.titleImmunopathology and Trypanosoma congolense parasite sequestration cause acute cerebral trypanosomiasispt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleCharacterising Trypanosoma tissue tropism: new perspectives for variant surface glycoproteins
oaire.awardTitleExploring the hidden life of African trypanosomes: parasite fat tropism and implications for disease
oaire.awardTitleNot Available
oaire.awardTitleNot Available
oaire.awardTitleNot Available
oaire.awardTitlePRINCIPLES OF AXIAL POLARITY-DRIVEN VASCULAR PATTERNING
oaire.awardTitleDeregulated Endothelial Blood Flow Response as a cause of Diabetic Retinopathy
oaire.awardTitleIdentify the mechanisms of endothelial tip cell invasive behavior in order to inhibit physiological and pathological sprouting angiogenesis
oaire.awardURIinfo:eu-repo/grantAgreement/EC/H2020/839960/EU
oaire.awardURIinfo:eu-repo/grantAgreement/EC/H2020/771714/EU
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/CEEC IND 2018/CEECIND%2F03322%2F2018%2FCP1543%2FCT0009/PT
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oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/EXPL%2FBEX-BCM%2F2258%2F2013/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/PTDC%2FMED-PAT%2F31639%2F2017/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/PTDC%2FBIA-CEL%2F32180%2F2017/PT
oaire.citation.titleeLifept_PT
oaire.citation.volume11pt_PT
oaire.fundingStreamH2020
oaire.fundingStreamH2020
oaire.fundingStreamCEEC IND 2018
oaire.fundingStreamCEEC IND 2018
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oaire.fundingStreamInvestigador FCT
oaire.fundingStream3599-PPCDT
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person.familyNameDe Niz
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person.givenNameMariana
person.givenNameSara
person.givenNameKarine
person.givenNameMarie
person.givenNameJoana
person.givenNameClaudio
person.givenNameLuisa M
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project.funder.nameEuropean Commission
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rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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