Project Title
Investigating the role of skin microbiome, host immunity and infection in epidermolysis bullosa wound healing
Partner Organisations
Internal ID
1181093
Principal Investigator
Start Date
2018

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    Scopus© Citations 11  2
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    Administration of Secretome Derived from Human Mesenchymal Stem Cells Induces Hepatoprotective Effects in Models of Idiosyncratic Drug-Induced Liver Injury Caused by Amiodarone or Tamoxifen
    (2023)
    HUANG, YA LIN  
    ;
    Silva Villalobos, Verónica
    ;
    DE GREGORIO CONCHA, CRISTIAN ALEJANDRO  
    ;
    Álvaro A. Elorza
    ;
    Patricio Léniz
    <jats:p>Drug-induced liver injury (DILI) is one of the leading causes of acute liver injury. While many factors may contribute to the susceptibility to DILI, obese patients with hepatic steatosis are particularly prone to suffer DILI. The secretome derived from mesenchymal stem cell has been shown to have hepatoprotective effects in diverse in vitro and in vivo models. In this study, we evaluate whether MSC secretome could improve DILI mediated by amiodarone (AMI) or tamoxifen (TMX). Hepatic HepG2 and HepaRG cells were incubated with AMI or TMX, alone or with the secretome of MSCs obtained from human adipose tissue. These studies demonstrate that coincubation of AMI or TMX with MSC secretome increases cell viability, prevents the activation of apoptosis pathways, and stimulates the expression of priming phase genes, leading to higher proliferation rates. As proof of concept, in a C57BL/6 mouse model of hepatic steatosis and chronic exposure to AMI, the MSC secretome was administered endovenously. In this study, liver injury was significantly attenuated, with a decrease in cell infiltration and stimulation of the regenerative response. The present results indicate that MSC secretome administration has the potential to be an adjunctive cell-free therapy to prevent liver failure derived from DILI caused by TMX or AMI.</jats:p>
      24Scopus© Citations 14
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    Cells from discarded dressings differentiate chronic from acute wounds in patients with Epidermolysis Bullosa
    (2020)
    FUENTES BUSTOS, MARIA IGNACIA  
    ;
    Christina Guttmann-Gruber
    ;
    Birgit Tockner
    ;
    Anja Diem
    ;
    Alfred Klausegger
    <jats:title>Abstract</jats:title><jats:p>Impaired wound healing complicates a wide range of diseases and represents a major cost to healthcare systems. Here we describe the use of discarded wound dressings as a novel, cost effective, accessible, and non-invasive method of isolating viable human cells present at the site of skin wounds. By analyzing 133 discarded wound dressings from 51 patients with the inherited skin-blistering disease epidermolysis bullosa (EB), we show that large numbers of cells, often in excess of 100 million per day, continually infiltrate wound dressings. We show, that the method is able to differentiate chronic from acute wounds, identifying significant increases in granulocytes in chronic wounds, and we show that patients with the junctional form of EB have significantly more cells infiltrating their wounds compared with patients with recessive dystrophic EB. Finally, we identify subsets of granulocytes and T lymphocytes present in all wounds paving the way for single cell profiling of innate and adaptive immune cells with relevance to wound pathologies. In summary, our study delineates findings in EB that have potential relevance for all chronic wounds, and presents a method of cellular isolation that has wide reaching clinical application.</jats:p>
      22Scopus© Citations 19
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    Epithelial HMGB1 Delays Skin Wound Healing and Drives Tumor Initiation by Priming Neutrophils for NET Formation
    (2019)
    Esther Hoste
    ;
    Christian Maueröder
    ;
    Lisette van Hove
    ;
    Leen Catrysse
    ;
    Hanna-Kaisa Vikkula
      17Scopus© Citations 66