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Strength and medium-term impact of HisAK70 immunization in dogs: Vaccine safety and biomarkers of effectiveness for ex vivo Leishmania infantum infection

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Abstract
HisAK70candidateshave successfullybeentested incutaneous (CL) andvisceral leishmaniosis (VL)mouse models.Here,weanalysedifferentbiomarkersindogtrialsafteraheterologousimmunizationstrategywitha HisAK70candidate(plasmidDNAplusadoptivetransferofperipheralblood-deriveddendriticcells(DCs)pulsed withthesamepathoantigenandCpGODNasanadjuvant)toexploretheantileishmanialactivityinanexvivo canineco-culturesysteminthepresenceofLeishmaniainfantumparasites.Inthecaninemodel,theheterologous HisAK70vaccinecoulddecreasetheinfectionindexintheDC-Tcellco-culturesystembyupto54%after30days andreachalmost67%after100dayspost-immunization,respectively,comparedtothoseobtainedinthecontrol groupofdogs.Theobservedsecurityandpotential tofight exvivoL. infantuminfectionhighlightaHisAK70 heterologousimmunizationstrategyasapromisingalternativetoevaluateitseffectivenessagainstcanineVL.
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Molina-Rueda F, Fernández-González P, Cuesta-Gómez A, Koutsou A, Carratalá-Tejada M, Miangolarra JC. Test-Retest Reliability of a Conventional Gait Model for Registering Joint Angles during Initial Contact and Toe-Off in Healthy Subjects. Int J Environ Res Public Health. 2021 Feb 15;3(18):1343-52
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