TY - GEN T1 - Parvovirus B19-induced vascular damage in the heart is associated with elevated circulating endothelial microparticles AU - Bachelier, Katrin AU - Biehl, Susanne AU - Schwarz, Viktoria AU - Kindermann, Ingrid AU - Kandolf, Reinhard AU - Sauter, Martina AU - Ukena, Christian AU - Yilmaz, Ali AU - Sliwa, Karen AU - Bock, Thomas AU - Klingel, Karin AU - Böhm, Michael AB - Background: Diagnosis of viral myocarditis is difficult by clinical criteria but facilitated by detection of inflammation and viral genomes in endomyocardial biopsies. Parvovirus B19 (B19V) targets endothelial cells where viral nucleic acid is exclusively detected in the heart. Microparticles (MPs) are released after cell damage or activation of specific cells. We aimed to investigate whether circulating endothelial MPs (EMPs) in human and experimental models of myocarditis are associated with B19V myocarditis. Methods: MPs were investigated in patients with myocarditis (n = 54), divided into two groups: B19V+ (n = 23) and B19V- (n = 31) and compared with healthy controls (HCTR, n = 25). MPs were also investigated in B19V transgenic mice (B19V-NS1+) and mice infected with coxsackievirus B3 (CVB3). MPs were analyzed with fluorescent activated cell sorting (FACS). Results: In human samples, EMP subpopulation patterns were significantly different in B19V+ compared to B19V- and HCTR (p KW - 610 Medizin PY - 2017 LA - eng PB - Robert Koch-Institut, Infektionskrankheiten / Erreger VL - 12 IS - 5 DO - 10.1371/journal.pone.0176311 ER -