[1] Julius Maximilian Univ Wurzburg, Dept Microbiol, Wurzburg, Germany
[2] Univ Maryland, Dept Cell Biol & Mol Genet, College Pk, MD 20742 USA
[3] Tech Univ Berlin, Berlin, Germany
[4] Fraunhofer Soc FHG, Fraunhofer Translat Ctr Regenerat Therapies, Munich, Bavaria, Germany