The effect of cyclic fluid perfusion on the proinflammatory tissue environment in osteoarthritis using equine joint-on-a-chip models.

IF 6.1 2区 工程技术 Q1 BIOCHEMICAL RESEARCH METHODS
Lab on a Chip Pub Date : 2025-03-31 DOI:10.1039/d4lc01078g
Johannes Heidenberger, Eva I Reihs, Jonathan Strauss, Martin Frauenlob, Sinan Gültekin, Iris Gerner, Stefan Tögel, Peter Ertl, Reinhard Windhager, Florien Jenner, Mario Rothbauer
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引用次数: 0

Abstract

Osteoarthritis (OA) is a prevalent degenerative joint disorder characterized by cartilage degradation, chronic inflammation, and progressive joint dysfunction. Despite rising incidences driven by ageing and increasing obesity, potent treatments remain elusive, exacerbating the socioeconomic burden. OA pathogenesis involves an imbalance in extracellular matrix (ECM) turnover, mediated by inflammatory cytokines and matrix-degrading enzymes, leading to oxidative stress, chondrocyte apoptosis, and ECM degradation. Additionally, synovial inflammation (synovitis) plays a critical role in disease progression through molecular crosstalk with cartilage and other joint tissues. Existing in vitro and in vivo OA models face significant limitations in replicating human pathophysiology, particularly the complex interplay between joint tissues. Equine models, due to their anatomical and cellular similarities to humans, offer translational relevance but remain underutilized. This study aims to develop an advanced 3D coculture system using equine chondrocytes and synoviocytes to simulate tissue-level interactions and fluid mechanical forces involved in OA. By incorporating inflammatory stimuli and gravity-driven cyclic fluid actuation, this model enables the study of OA-related molecular interactions in both healthy and diseased conditions under dynamic fluid conditions. Findings from this research provide important insights into pathological tissue crosstalk. In turn, this can help to better understand underlying inflammatory pathways and the potential contribution of fluid flow as an influential factor on the tissue microenvironment.

利用马关节芯片模型研究循环液体灌注对骨关节炎促炎组织环境的影响。
骨关节炎(OA)是一种常见的退行性关节疾病,以软骨退化、慢性炎症和进行性关节功能障碍为特征。尽管老龄化和肥胖导致发病率上升,但有效的治疗方法仍然难以捉摸,加剧了社会经济负担。骨性关节炎的发病机制涉及由炎症细胞因子和基质降解酶介导的细胞外基质(ECM)周转失衡,导致氧化应激、软骨细胞凋亡和ECM降解。此外,滑膜炎症(滑膜炎)通过与软骨和其他关节组织的分子串扰在疾病进展中起关键作用。现有的体外和体内OA模型在复制人体病理生理,特别是关节组织之间复杂的相互作用方面存在显着局限性。马的模型,由于其解剖和细胞与人类的相似性,提供翻译相关性,但仍未充分利用。本研究旨在开发一种先进的3D共培养系统,利用马软骨细胞和滑膜细胞来模拟骨性关节炎中组织水平的相互作用和流体机械力。通过结合炎症刺激和重力驱动的循环流体驱动,该模型能够在动态流体条件下研究健康和患病条件下与oa相关的分子相互作用。这项研究的发现为病理组织串扰提供了重要的见解。反过来,这有助于更好地理解潜在的炎症途径和流体流动作为组织微环境影响因素的潜在贡献。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Lab on a Chip
Lab on a Chip 工程技术-化学综合
CiteScore
11.10
自引率
8.20%
发文量
434
审稿时长
2.6 months
期刊介绍: Lab on a Chip is the premiere journal that publishes cutting-edge research in the field of miniaturization. By their very nature, microfluidic/nanofluidic/miniaturized systems are at the intersection of disciplines, spanning fundamental research to high-end application, which is reflected by the broad readership of the journal. Lab on a Chip publishes two types of papers on original research: full-length research papers and communications. Papers should demonstrate innovations, which can come from technical advancements or applications addressing pressing needs in globally important areas. The journal also publishes Comments, Reviews, and Perspectives.
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