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|Hospital of the LMU, Germany|
|Keynote: J Clin Cell Immunol|
|One reason for the lack of individualized therapies in ulcerative colitis (UC) may be that the conventional approaches are not adequate to understand the complexity of chronic inflammatory diseases. They mostly rely on the identification of certain cell types and cytokines associated with the disease phenotype, followed by verification of their roles in vitro and in vivo. This approach does not take into consideration that the observed pathologies might be the result of different causes. In addition, inflammatory responses are highly dynamic processes that require the cross talk of the immune-, epithelial-, endothelial-, muscle cells, and fibrocytes. The conventional approach further disregards the high plasticity of T-cells and monocytes, which both have the capacity to adopt their phenotype depending on the inflammatory milieu. Therefore, we took a more comprehensive approach and developed FACS, ELISA and autoantibody panels to portray individual inflammatory profiles. In addition, we developed a disease map of UC by computational modeling. Finally, we developed an animal model which enables us to proof the hypothesis generated by modeling and profiling. So far, we tested infliximab, adulizumab, sirolimus, anti CD1a antibodies, anti CCR4 antibodies and the IL-4Rα /IL-13α1 inhibitor pitrakinra in our mouse model. Results suggest that the animal model is highly reflective of the human disease, that therapeutic responses can be predicted by the computational model and that novel therapeutics emerge from this approach.|
Roswitha Gropp has over 25 years of experience in preclinical development and inflammatory diseases. She recently took on a different view considering the inflammatory process in UC as an uncontrolled wound healing process. This hypothesis assumes that epithelial damage induces the release of signals to evoke a Th2 characterized inflammatory response that ultimately results in repair of the colon. Using agent based modeling first disease maps were developed to describe the inflammatory milieu and the dynamics of the inflammatory response. This approach together with immunological profiling of patients allows for a better understanding of underlying mechanisms ultimately leading to individualized therapies.
Email: [email protected]
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