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The Scar-in-a-Jar: In Vitro Fibrosis Model for Anti-Fibrotic Drug Testing.

Simon Stebler1, Michael Raghunath2

  • 1Center for Cell Biology and Tissue Engineering, Institute of Chemistry and Biotechnology, Zurich University of Applied Sciences (ZHAW), Wädenswil, Switzerland.

Methods in Molecular Biology (Clifton, N.J.)
|May 24, 2021
PubMed
Summary
This summary is machine-generated.

A novel Scar-in-a-Jar assay accelerates extracellular matrix deposition for efficient in vitro fibrosis modeling. This method aids in evaluating antifibrotic drugs by enabling direct imaging and analysis of collagen, streamlining drug discovery.

Keywords:
BioimagingCollagen quantitationDrug discoveryExtracellular matrixHigh-content screeningImmunocytochemistryMacromolecular crowdingUltra-flat 3D

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Area of Science:

  • Biochemistry
  • Cell Biology
  • Pharmacology

Background:

  • Chronic inflammation leads to excessive type I collagen deposition, causing fibrosis and potential organ failure.
  • Current methods for quantifying deposited collagen in fibrosis research are often time-consuming and labor-intensive.
  • Evaluating antifibrotic drugs requires accurate assessment of collagen matrix formation and deposition.

Purpose of the Study:

  • To introduce the Scar-in-a-Jar assay, an in vitro model for testing antifibrotic drugs.
  • To develop a method for accelerated extracellular matrix deposition and collagen quantification.
  • To provide a high-content screening compatible platform for fibrosis research.

Main Methods:

  • Utilized macromolecular crowding to accelerate extracellular matrix deposition.
  • Employed a chosen collagen-producing cell type (e.g., lung fibroblasts WI-38).
  • Incorporated direct image analysis of the well plate, eliminating the need for matrix extraction.

Main Results:

  • The Scar-in-a-Jar assay significantly accelerates extracellular matrix deposition.
  • Direct imaging analysis allows for monitoring of phenotypical markers and collagen presence.
  • The assay is adaptable for high-content screening applications.

Conclusions:

  • The Scar-in-a-Jar assay offers an efficient and streamlined in vitro model for antifibrotic drug evaluation.
  • This method simplifies the assessment of fibrosis by enabling direct, non-destructive analysis.
  • The assay has potential for broad application in drug discovery and fibrosis research.