Mirror image phage display--generating stable therapeutically and diagnostically active peptides with biotechnological means.

Peptides are attracting increasing attention as therapeutics. D-enantiomeric peptides are remarkably resistant to in vivo proteolysis and elicit low immunogenic responses when compared with the respective L-peptides. Therefore, D-peptides can serve as therapeutic and early diagnosis agents for drug development. Here we discuss the application of mirror image phage display in pharmaceutical biotechnology aiming to identify protease resistant D-peptides with biotechnological approaches.