Die Wiedertäufer im Herzogtum Jülich : Capitel II und III

Karl RembertZugl.: Münster (Westf), Königl. Akad., Diss., 189

Die Wiedertäufer im Herzogtum Jülich; Studien zur Geschichte der Reformation, besonders am Niederrhein

Includes index.Parts 2 and 3 also issued as author's thesis.Bibliography: p. [627]-632.Mode of access: Internet

An angiogenic role for the human peptide antibiotic LL-37/hCAP-18

Antimicrobial peptides are effector molecules of the innate immune system and contribute to host defense and regulation of inflammation. The human cathelicidin antimicrobial peptide LL-37/hCAP-18 is expressed in leukocytes and epithelial cells and secreted into wound and airway surface fluid. Here we show that LL-37 induces angiogenesis mediated by formyl peptide receptor–like 1 expressed on endothelial cells. Application of LL-37 resulted in neovascularization in the chorioallantoic membrane assay and in a rabbit model of hind-limb ischemia. The peptide directly activates endothelial cells, resulting in increased proliferation and formation of vessel-like structures in cultivated endothelial cells. Decreased vascularization during wound repair in mice deficient for CRAMP, the murine homologue of LL-37/hCAP-18, shows that cathelicidin-mediated angiogenesis is important for cutaneous wound neovascularization in vivo. Taken together, these findings demonstrate that LL-37/hCAP-18 is a multifunctional antimicrobial peptide with a central role in innate immunity by linking host defense and inflammation with angiogenesis and arteriogenesis