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Paul-Ehrlich-Institut Paul-Ehrlich-Str. 51-59 63225 Langen in Hessen, Germany http://www.pei.de
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Paul-Ehrlich-Institut

Messen, was verbindet - Gewebeschäden durch Zellfusion in COVID-19 und die Rolle des Spikeproteins

(PresseBox) (Langen in Hessen, )
Das Coronavirus SARS-CoV-2 gelangt durch Membranfusion nach Kontakt seines Spikeproteins mit dem ACE2-Rezeptor in menschliche Zellen. Neue Studien belegen eine zweite Rolle des Proteins in COVID-19: das Verschmelzen von Körperzellen. Ein Forschungsteam des Paul-Ehrlich-Instituts hat vielversprechende Assays entwickelt, mit denen sich diese Membranfusionen messen lassen. Schon geringste Mengen des Spikeproteins reichen in Zellkultur aus, infizierte und nicht infizierte Zellen verschmelzen und absterben zu lassen. Viruspartikel mit Spikeprotein auf ihrer Oberfläche können sogar nur durch Kontakt Zellen veranlassen, mit ihren Nachbarn zu fusionieren. Über die Ergebnisse berichtet iScience in seiner Onlineausgabe vom 09.02.2021.

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