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HCMV gH/UL116 antibodies show two distinct immune functions

A bioRxiv preprint reports that antibodies targeting the HCMV gH/UL116 envelope complex can neutralize the virus or activate Fcγ receptors, depending on where they bind. Immunization with the complex also elicited antibody responses in mice linked to both activities.

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Preprint identifies how an anti-HPA-1a antibody activates platelets

A bioRxiv preprint describes two patient-derived anti-HPA-1a antibodies and finds that one induced platelet aggregation through coordinated binding to HPA-1a and FcγRIIa. The laboratory study provides a mechanistic explanation for functional differences among antibodies involved in fetal and neonatal alloimmune thrombocytopenia.