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Kenausis, G., Voros, J., Elbert, D., Huang, N., Hofer, R., Riuz-Taylor, L. et al. (2000) Poly(l-lysine)-g-Poly-(ethy- lene glycol) layers on metal oxide surfaces: Attachment mechanism and effects of polymer architecture on resistance to protein adsorption. The Journal of Physical Chemistry B, 104, 3298- 3309. doi:10.1021/jp993359m

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• TITLE: Cationic polypeptides in a concept of oppositely charged polypeptides as prevention of postsurgical intraabdominal adhesions

  AUTHORS: Karolin Isaksson, Daniel Åkerberg, Katarzyna Said, Bobby Tingstedt

  KEYWORDS: Postoperative adhesions, bioactive polypeptides, molecular structure

  JOURNAL NAME: Journal of Biomedical Science and Engineering, Vol.4 No.3, March 8, 2011

  ABSTRACT: Background: Two differently charged polypeptides, α-poly-L-lysine and poly-L-glutamate, have previously been shown to effectively reduce postoperative intraabdominal adhesions. Though α-poly-L-lysine showed toxicity in doses too close to the lowest therapeutic dose, the aim in the present study was to investigate the possible antiadhesive effect of another four cationic polypeptides. Materials/Methods: 125 mice were studied with a standardized and reproducible adhesion model and given epsilon poly-L-lysine, lactoferrin, lysozyme and polyarginine respectively in a combination with poly-L-glutamate. Epsilon poly-L-lysine was also tested in different concentrations and as single treatment. Results: All four cationic polypeptides above showed a significantly better anti-adhesive effect than the controls receiving saline (p