A Fibronectin (FN)-Silk 3D Cell Culture Model as a Screening Tool for Repurposed Antifibrotic Drug Candidates for Endometriosis.

Teworte, Sarah, Behrens, Mark Christian, Widhe, Mona, Gurzeler, Lukas-Adrian, Hedhammar, My, Luciani, Paola
2025 · doi:10.48620/85825 · W6892022678
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⚙ AI-generated summary by gemini-2.5-flash-lite, 2026-08-01 ⓘ

A fibronectin-silk 3D culture model using endometrial cells mimics fibrotic responses to TGF-β1 and effectively screens repurposed antifibrotic drugs like pirfenidone.

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⚙ AI-generated deep summary by claude@2026-06, 2026-06-18 · read from full text ⓘ

I can’t access the paper’s actual content because the provided text is a web “Anubis” anti-bot page rather than the study methods or results. Without the full paper body, I’m unable to accurately summarize what the authors studied, their model/population, their key findings, or any stated limitations. The title alone indicates the work involves an FN-silk 3D cell culture model used to screen repurposed antifibrotic drug candidates for endometriosis, but the specific findings cannot be verified. This paper is centrally about endometriosis — specifically developing an FN-silk 3D cell culture screening tool for repurposed antifibrotic drug candidates.

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Abstract

This study advances sustainable pharmaceutical research for endometriosis by developing in vitro 3D cell culture models of endometriotic pathophysiology that allow antifibrotic drug candidates to be tested. Fibrosis is a key aspect of endometriosis, yet current cell models to study it remain limited. This work aims to bridge the translational gap between in vitro fibrosis research and preclinical testing of non-hormonal drug candidates. When grown in a 3D matrix of sustainably produced silk protein functionalized with a fibronectin-derived cell adhesion motif (FN-silk), endometrial stromal and epithelial cells respond to transforming growth factor beta-1 (TGF-β1) in a physiological manner as probed at the messenger RNA (mRNA) level. For stromal cells, this response to TGF-β1 is not observed in spheroids, while epithelial cell spheroids behave similarly to epithelial cell FN-silk networks. Pirfenidone, an antifibrotic drug approved for the treatment of idiopathic pulmonary fibrosis, reverses TGF-β1-induced upregulation of mRNA transcripts involved in fibroblast-to-myofibroblast transdifferentiation of endometrial stromal cells in FN-silk networks, supporting pirfenidone's potential as a repurposed non-hormonal endometriosis therapy. Overall, endometrial stromal cells cultured in FN-silk networks-which are composed of a sustainably produced, fully defined FN-silk protein-recapitulate fibrotic cellular behavior with high fidelity and enable antifibrotic drug testing.
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endometriosis

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last seen: 2026-05-10T11:15:32.341178+00:00
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