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Journal Articles Current Eye Research Year : 2023

An Overview of Current Glaucomatous Trabecular Meshwork Models


The trabecular meshwork (TM) is a complex tissue that regulates aqueous humor outflow from the eye. Dysfunction of the TM is a major contributor to the pathogenesis of open-angle glaucoma, a leading cause of irreversible blindness worldwide. The TM is a porous structure composed of trabecular meshwork cells (TMC) within a multi-layered extracellular matrix (ECM). Although dysregulation of the outflow throughout the TM represents the first step in the disease process, the underlying mechanisms of TM degeneration associate cell loss and accumulation of ECM, but remain incompletely understood, and drugs targeting the TM are limited. Therefore, experimental models of glaucomatous trabeculopathy are necessary for preclinical screening, to advance research on this disease's pathophysiology, and to develop new therapeutic strategies targeting the TM. Traditional animal models have been used extensively, albeit with inherent limitations, including ethical concerns and limited translatability to humans. Consequently, there has been an increasing focus on developing alternative in vitro models to study the TM. Recent advancements in three-dimensional cell culture and tissue engineering are still in their early stages and do not yet fully reflect the complexity of the outflow pathway. However, they have shown promise in reducing reliance on animal experimentation in certain aspects of glaucoma research. This review provides an overview of the existing alternative models for studying TM and their potential for advancing research on the pathophysiology of open-angle glaucoma and developing new therapeutic strategies.
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hal-04466522 , version 1 (19-02-2024)



Juliette Buffault, Françoise Brignole-Baudouin, Antoine Labbé, Christophe Baudouin. An Overview of Current Glaucomatous Trabecular Meshwork Models. Current Eye Research, 2023, 48 (12), pp.1089-1099. ⟨10.1080/02713683.2023.2253378⟩. ⟨hal-04466522⟩
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