idw – Informationsdienst Wissenschaft
Nachrichten, Termine, Experten
Nachrichten, Termine, Experten
Die Abbildung zeigt das Innere einer Schaltzentrale des Immunsystems, den Lymphknoten. Hier treffen die T-Zellen (grün und rot gefärbt) auf andere Zellen des Immunsystems, um gemeinsam mit diesen die Immunantwort zu koordinieren. Um in den Lymphknoten zu kommen, müssen die T-Zellen das Gefäßsystem (gelb gefärbt) verlassen. Hierzu sind Adhäsionsmoleküle wie das Integrin LFA-1 unverzichtbar. Störungen im Adhäsionssystem führen zu Immunmangelzuständen (Immundefizienzen) mit der Folge, dass sogar banale Infektionen lebensbedrohlich werden können.
Bild: Dr. Peter Reichardt
(361 KB, 641 x 641 pixels)
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