Abstract
With regard to the pathogenesis of recurrent incisional hernia, an impaired connective tissue quality leading to an aberrant scarring process has been proposed. For the matrix metalloproteinase (MMP-2) a pathogenetic involvement in direct inguinal hernia development is reported. With mesh implantation as the gold standard treatment for incisional hernias, the aim of the present study was to investigate the MMP-2 expression in patients with recurrent incisional hernias with and without mesh-materials. In primary fibroblast cultures obtained from skin scars in patients with and without recurrent incisional hernias, MMP-2 synthesis and gene expression were investigated. Furthermore, MMP-2 synthesis and gene expression of fibroblasts were compared after incubation with two different mesh materials: polypropylene and absorbable polyglactin filaments. MMP-2 enzyme activity was determined by semiquantitative zymography and mRNA synthesis by quantitative RT-PCR. Both MMP-2 enzyme activity and mRNA expression were similar in hernia and control fibroblasts in vitro. In control fibroblasts mesh incubation did not significantly affect MMP-2 expression, whereas polypropylene mesh contact of fibroblasts from patients with recurrent incisional hernias led to a major decrease of MMP-2 activity and of mRNA expression. In the absence of biomaterials fibroblasts from recurrent incisional hernia, patients have no alterations of their MMP-2 synthesis compared to control fibroblasts, whereas a specific response was found after biomaterial contact hereby indicating differences in fibroblast phenotype.
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Acknowledgements
This work was supported by IZKF-BIOMAT, RWTH-Aachen, project no. TV B66 and by the Deutsche Forschungsgemeinschaft grant KL 1320/2–1. Mesh materials were kindly provided by Ethicon, Hamburg, Germany.
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This work was supported by IZKF-BIOMAT, RWTH-Aachen, project no. TV B66 and by the Deutsche Forschungsgemeinschaft grant KL 1320/2-1
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Rosch, R., Lynen-Jansen, P., Junge, K. et al. Biomaterial-dependent MMP-2 expression in fibroblasts from patients with recurrent incisional hernias. Hernia 10, 125–130 (2006). https://doi.org/10.1007/s10029-005-0060-4
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DOI: https://doi.org/10.1007/s10029-005-0060-4