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A Coculture Model Mimicking the Intestinal Mucosa Reveals a Regulatory Role for Myofibroblasts in Immune-Mediated Barrier Disruption

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Abstract

The pathogenesis of Crohn’s disease involves a mucosal inflammatory response affecting the barrier function of the gut. Myofibroblasts directly underlining the intestinal epithelium may have a regulatory role in immune-mediated barrier disruption. A coculture system of T84 epithelial and CCD-18Co myofibroblasts was established in order to mimic the in situ spatial interactions between these cell types and to evaluate their role in barrier: integrity. Lamina propria mononuclear cells (LPMC) were introduced in co- and monocultures. Effects of immune cells on barrier integrity was determined by measuring resistance and permeability for macromolecules. Introduction of LPMC in both culture systems caused a time-dependent decrease in barrier integrity. This was found to be less pronounced in cocultures indicating a regulatory role for mesenchymal cells. The effects were also found to depend on the route of LPMC stimulation. Additional analyses suggested that the regulatory role of myofibroblasts in barrier integrity involves production of growth factors.

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Authors and Affiliations

  1. Numico Research BV, Wageningen, The Netherlands

    L.E.M. Willemsen, C.C.H.M. Schreurs, H. Kroes & E.A.F. van Tol

  2. Department of Surgery, Rijnstate Hospital, Arnhem, The Netherlands

    E.J. Spillenaar Bilgen

  3. Department of Experimental Internal Medicine, Academic Medical Center, Amsterdam, The Netherlands

    S.J.H. van Deventer

Authors
  1. L.E.M. Willemsen
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  2. C.C.H.M. Schreurs
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  3. H. Kroes
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  4. E.J. Spillenaar Bilgen
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  5. S.J.H. van Deventer
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  6. E.A.F. van Tol
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Willemsen, L., Schreurs, C., Kroes, H. et al. A Coculture Model Mimicking the Intestinal Mucosa Reveals a Regulatory Role for Myofibroblasts in Immune-Mediated Barrier Disruption. Dig Dis Sci 47, 2316–2324 (2002). https://doi.org/10.1023/A:1020103815011

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