Human immunocompetent Choroid-on-Chip: a novel tool for studying ocular effects of biological drugs

Author:

Cipriano MadalenaORCID,Schlünder Katharina,Probst Christopher,Linke Kirstin,Weiss Martin,Fischer Mona J.,Mesh Lena,Achberger Kevin,Liebau Stefan,Mesquida Marina,Nicolini Valeria,Schneider Anneliese,Giusti Anna Maria,Kustermann Stefan,Loskill PeterORCID

Abstract

AbstractDisorders of the eye leading to visual impairment are a major issue that affects millions of people. On the other side ocular toxicities were described for e.g. molecularly targeted therapies in oncology and may hamper their development. Current ocular model systems feature a number of limitations affecting human-relevance and availability. To find new options for pharmacological treatment and assess mechanisms of toxicity, hence, novel complex model systems that are human-relevant and readily available are urgently required. Here, we report the development of a human immunocompetent Choroid-on-Chip (CoC), a human cell-based in vitro model of the choroid layer of the eye integrating melanocytes and microvascular endothelial cells, covered by a layer of retinal pigmented epithelial cells. Immunocompetence is achieved by perfusion of peripheral immune cells. We demonstrate controlled immune cell recruitment into the stromal compartments through a vascular monolayer and in vivo-like cytokine release profiles. To investigate applicability for both efficacy testing of immunosuppressive compounds as well as safety profiling of immunoactivating antibodies, we exposed the CoCs to cyclosporine and tested CD3 bispecific antibodies.Abstract FigureGraphical Abstract

Publisher

Cold Spring Harbor Laboratory

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