Synergistic antibacterial and anti-inflammatory activity of temporin A and modified temporin B in vivo
Articolo
Data di Pubblicazione:
2009
Citazione:
Synergistic antibacterial and anti-inflammatory activity of temporin A and modified temporin B in vivo / R. Capparelli, A. Romanelli, M. Iannaccone, N. Nocerino, R. Ripa, S. Pensato, C. Pedone, D. Iannelli. - In: PLOS ONE. - ISSN 1932-6203. - 4:9(2009 Sep), pp. e7191.1-e7191.11.
Abstract:
Temporins are antimicrobial peptides secreted by the granular glands of the European red frog (Rana temporaria). They are 10-14 amino acid long polypeptides active prevalently against gram positive bacteria. This study shows that a synthetic temporin B analogue (TB-YK), acquires the capacity to act in synergism with temporin A and to exert antimicrobial and anti-inflammatory activity in vivo against gram positive and gram negative bacteria. Administration of 3.4 mg/Kg of temporin A (TA)+1.6 mg/ Kg TB-YK, given to individual mice concurrently with a lethal dose of bacteria (gram positive or negative), rescued 100% of the animals. More importantly, the same doses of temporins, administered one week after experimental infection with a sub lethal dose of bacteria, sterilized 100% of the animals within 3-6 days. Also, it is described an animal model based on the use of sub lethal doses of bacteria, which closely mimics bacterial infection in humans. The model offers the possibility to test in a preclinical setting the true potential of TA and TB-YK in combination as antimicrobial and anti-inflammatory agents.
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
peptides; antimicrobial; secondary structure
Elenco autori:
R. Capparelli, A. Romanelli, M. Iannaccone, N. Nocerino, R. Ripa, S. Pensato, C. Pedone, D. Iannelli
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