0000000000275649

AUTHOR

Heidi Pirttinen

showing 3 related works from this author

Parvovirus B19V Nonstructural Protein NS1 Induces Double-Stranded Deoxyribonucleic Acid Autoantibodies and End-Organ Damage in Nonautoimmune Mice

2018

Abstract Background Viral infection is implicated in development of autoimmunity. Parvovirus B19 (B19V) nonstructural protein, NS1, a helicase, covalently modifies self double-stranded deoxyribonucleic acid (dsDNA) and induces apoptosis. This study tested whether resulting apoptotic bodies (ApoBods) containing virally modified dsDNA could induce autoimmunity in an animal model. Methods BALB/c mice were inoculated with (1) pristane-induced, (2) B19V NS1-induced, or (3) staurosporine-induced ApoBods. Serum was tested for dsDNA autoantibodies by Crithidia luciliae staining and enzyme-linked immunosorbent assay. Brain, heart, liver, and kidney pathology was examined. Deposition of self-antigens…

0301 basic medicinePathogenesis and Host ResponseviruksetvirusesB19VKidney GlomerulusSLEApoptosisAutoimmunityanti-dsDNA antibodyViral Nonstructural Proteinsmedicine.disease_causeAutoimmunityautoimmuniteettiMice0302 clinical medicineGlomerulonephritisParvovirus B19 HumanImmunology and Allergy030212 general & internal medicineEnzyme InhibitorstolerancebiologyChemistryapoptosisBrainInfectious DiseasesLivervirustauditAntibodies AntinuclearmaksatulehdusFemaleAntibodyImmunosuppressive Agentsta3111infektiot03 medical and health sciencesohjelmoitunut solukuolemaMajor Articles and Brief ReportsExtracellular VesiclesAntigenmedicineCrithidia luciliaeAnimalsapoptotic bodiesparvoviruksetParvovirusTerpenesAnti-dsDNA antibodiesMyocardiumta1183parvovirusAutoantibodyta1182DNAbiology.organism_classificationStaurosporineMolecular biology030104 developmental biologyApoptosisbiology.proteinautovasta-aineetglomerulonephritisThe Journal of Infectious Diseases
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Pathogenesis and autoimmunity initiated by a viral protein-induced apoptotic bodies

2016

Ihmisen parvovirus B19 (B19) on laajalle levinnyt, yleinen virus, joka aiheuttaa lapsissa parvorokkoa (viides tauti). Aikuisille B19 aiheuttaa erinäisiä sairauksia, muun muassa nivelkipuja ja – tulehdusta, anemiaa, sekä raskaana oleville sikiöpöhöä. Lisäksi B19 infektio saattaa johtaa autoimmuunisairauksiin, kuten punahukkaan (systemic lupus erythematosus, SLE), nivelreumaan ja sydänlihastulehdukseen. Toisaalta infektio voi olla myös täysin oireeton. Mekanismit, jotka johtavat B19 tartunnasta autoimmuunisairauteen, ovat vielä tuntemattomia. Kuitenkin tiedetään, että B19:n ei-rakenteellinen proteiini NS1 on soluille tuhoisa ja aiheuttaa niiden kuoleman (apoptoosin) muodostaen solunjäännösten…

punahukkaIhmisen parvovirus B19virusesautoimmunitySLEvasta-aineetvirus diseasesanti-dsDNA antibodiesautoimmuniteettiparvorokkoDNA-vasta-aineetApoBoditNS1 ApoBodsparvoviruksetHuman parvovirus B19
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Retraction Note: Evaluating polymicrobial immune responses in patients suffering from tick-borne diseases

2022

There is insufficient evidence to support screening of various tick-borne diseases (TBD) related microbes alongside Borrelia in patients suffering from TBD. To evaluate the involvement of multiple microbial immune responses in patients experiencing TBD we utilized enzyme-linked immunosorbent assay. Four hundred and thirty-two human serum samples organized into seven categories followed Centers for Disease Control and Prevention two-tier Lyme disease (LD) diagnosis guidelines and Infectious Disease Society of America guidelines for post-treatment Lyme disease syndrome. All patient categories were tested for their immunoglobulin M (IgM) and G (IgG) responses against 20 microbes associated wit…

MultidisciplinaryArticleScientific Reports
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