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자료유형
학술저널
저자정보
FAROOQI HAFIZ MUHAMMAD UMER (제주대학교) Kang Bohye (Jeju National University) Khalid Muhammad Asad Ullah (Jeju National University) Salih Abdul Rahim Chethikkattuveli (Jeju National University) Hyun Kinam (Jeju National University) 박성혁 (제주대학교) Huh Dongeun (University of Pennsylvania) 최경현 (제주대학교)
저널정보
나노기술연구협의회 Nano Convergence Nano Convergence Vol.8 No.3
발행연도
2021.2
수록면
1 - 12 (12page)
DOI
10.1186/s40580-021-00253-y

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Hepatic fibrosis is a foreshadowing of future adverse events like liver cirrhosis, liver failure, and cancer. Hepatic stellate cell activation is the main event of liver fibrosis, which results in excessive extracellular matrix deposition and hepatic parenchyma's disintegration. Several biochemical and molecular assays have been introduced for in vitro study of the hepatic fibrosis progression. However, they do not forecast real-time events happening to the in vitro models. Trans-epithelial electrical resistance (TEER) is used in cell culture science to measure cell monolayer barrier integrity. Herein, we explored TEER measurement's utility for monitoring fibrosis development in a dynamic cell culture microphysiological system. Immortal HepG2 cells and fibroblasts were co-cultured, and transforming growth factor β1 (TGF-β1) was used as a fibrosis stimulus to create a liver fibrosis-on-chip model. A glass chip-based embedded TEER and reactive oxygen species (ROS) sensors were employed to gauge the effect of TGF-β1 within the microphysiological system, which promotes a positive feedback response in fibrosis development. Furthermore, albumin, Urea, CYP450 measurements, and immunofluorescent microscopy were performed to correlate the following data with embedded sensors responses. We found that chip embedded electrochemical sensors could be used as a potential substitute for conventional end-point assays for studying fibrosis in microphysiological systems.

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