Louis is the CSO and Management Board Member of JJP Biologics, an innovative new Polish Company backed by the Starak family. JJP Biologics develops the next generation of novel therapeutic biologics around personalized medicine and companion diagnostics (JJP Biologics: Overview | LinkedIn). Louis obtained his Ph.D. in Biochemistry at the University of Amsterdam. He was the founder of various companies focused on the generation and development of therapeutic monoclonal antibodies, primarily in the field of cancer and inflammation. In 2003, he was one of the founders of Bioceros BV, now Polpharma Biologics, where he currently holds the position of Principal Scientific Advisor. In addition, he held positions as CSO for MacroZyme BV, 4AZA Bioscience NV, FF Pharma, and VP preclinical for PanGenetics BV and Tanox. Louis is an author of over 340 publications in international scientific journals in the field of medical biotechnology and an inventor at more than 20 patent applications.
Autoantigen-specific IgA autoantibodies closely correlate with symptoms severity in a subgroup of patients in multiple autoimmune diseases. Beyond the value of these IgA autoantibodies as biomarkers, the presence of excessive IgA/autoantigen immune complexes results in continuous CD89 (FcαRI)-mediated activation of myeloid cells, leading to severe tissue damage. Activation of myeloid cells - especially of neutrophils - is a highly underappreciated and untargeted hallmark of autoimmune diseases. Enabling a personalized medicine approach, high autoantigen-specific IgA serum levels will serve as companion diagnostic to stratify patients for personalized treatment with our antagonist humanized anti-CD89 antibody (JJP-1212). Interfering with the IgA/CD89 axis by JJP-1212, resolves IgA/autoantigen-induced inflammation and subsequent tissue damage in a variety of autoimmune diseases.