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Sci Rep. 2018 Oct 5;8(1):14882. doi: 10.1038/s41598-018-33099-2.

Technology Transfer of the Microphysiological Systems: A Case Study of the Human Proximal Tubule Tissue Chip.

Author information

1
Department of Veterinary Integrative Biosciences, Texas A&M University, College Station, TX, USA.
2
Department of Pharmaceutics, University of Washington, Seattle, WA, USA.
3
Division of Nephrology, University of Washington Kidney Research Institute, Seattle, WA, USA.
4
Bioinformatics Research Center, North Carolina State University, Raleigh, NC, USA.
5
Geochemical and Environmental Research Group, Texas A&M University, College Station, TX, USA.
6
Department of Electrical and Computer Engineering, Texas A&M University, College Station, TX, USA.
7
Department of Biomedical Engineering, Texas A&M University, College Station, TX, USA.
8
Department of Veterinary Integrative Biosciences, Texas A&M University, College Station, TX, USA. irusyn@tamu.edu.

Abstract

The adoption of a new technology into basic research, and industrial and clinical settings requires rigorous testing to build confidence in the reproducibility, reliability, robustness, and relevance of these models. Tissue chips are promising new technology, they have the potential to serve as a valuable tool in biomedical research, as well as pharmaceutical development with regards to testing for efficacy and safety. The principal goals of this study were to validate a previously established proximal tubule tissue chip model in an independent laboratory and to extend its utility to testing of nephrotoxic compounds. Here, we evaluated critical endpoints from the tissue chip developer laboratory, focusing on biological relevance (long-term viability, baseline protein and gene expression, ammoniagenesis, and vitamin D metabolism), and toxicity biomarkers. Tissue chip experiments were conducted in parallel with traditional 2D culture conditions using two different renal proximal tubule epithelial cell sources. The results of these studies were then compared to the findings reported by the tissue chip developers. While the overall transferability of this advanced tissue chip platform was a success, the reproducibility with the original report was greatly dependent on the cell source. This study demonstrates critical importance of developing microphysiological platforms using renewable cell sources.

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