The generation of plasma cells and CD27−IgD−B cells during Hantavirus infection are associated with distinct pathological findings

Author:

Kerkman PF,Dernstedt A,Tadala L,Mittler E,Dannborg M,Sundling C,Maleki KT,Tauriainen J,Tuiskunen-Bäck A,Wigren Byström J,Ocaya P,Thunberg T,Jangra R,Román-Sosa G,Guardado-Calvo P,Rey FA,Klingström J,Chandran K,Puhar A,Ahlm C,Forsell MNE

Abstract

AbstractHuman hantavirus infections can cause hemorrhagic fever with renal syndrome (HFRS), major signs of the disease being thrombocytopenia and transient kidney dysfunction. By a comprehensive and longitudinal study of circulating B cells, we demonstrate that these two pathologies associate with distinct effects on the humoral immune system during HFRS. Low thrombocyte counts strongly associated with an abnormal frequency of plasmablasts in circulation, whereas kidney dysfunction was indicative of an accumulation of CD27B cells and plasmablasts. Finally, we provide evidence that high levels of extracellular ATP in circulation during HFRS correlates with shedding of surface CD27 on B cells via a metallomatrix proteinase-8-mediated mechanism. Since extracellular ATP is known to regulate kidney function, our study reveals a link between kidney dysfunction and the generation of CD27IgDB cells, and a potential molecular target for treatment of the symptomatic phase of HFRS.

Publisher

Cold Spring Harbor Laboratory

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