Synergistic antibacterial and anti-inflammatory activity of temporin A and modified temporin B in vivo(115 visite) Capparelli R, Romanelli A, Iannaccone M, Nocerino N, Ripa R, Pensato S, Pedone C, Iannelli D
*** IBB - CNR *** Department of Soil, Plant, Environment and Animal Production Sciences, University of Naples Federico II, School of Biotechnological Sciences, Napoli, Italy. capparel@unina.it Department of Biological Sciences, University of Naples Federico II, School of Biotechnological Sciences, Napoli, Italy
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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.
Petraglia F, Singh AA, Carafa V, Nebbioso A, Conte M, Scisciola L, Valente S, Baldi A, Mandoli A, Petrizzi VB, Ingenito C, De Falco S, Cicatiello V, Apicella I, Janssen-megens EM, Kim B, Yi G, Logie C, Heath S, Ruvo M, Wierenga ATJ, Flicek P, Yaspo ML, Della Valle V, Bernard O, Tomassi S, Novellino E, Feoli A, Sbardella G, Gut I, Vellenga E, Stunnenberg HG, Mai A, Martens JHA, Altucci L * Combined HAT/EZH2 modulation leads to cancer-selective cell death(51 visite) Oncotarget (ISSN: 1949-2553electronic, 1949-2553linking), 2018 May 22; 9(39): 25630-25646. Impact Factor:5.008 DettagliEsporta in BibTeXEsporta in EndNote
576 Records (553 escludendo Abstract e Conferenze). Impact factor totale: 2382.052 (2302.143 escludendo Abstract e Conferenze). Impact factor a 5 anni totale: 2427.982 (2344.401 escludendo Abstract e Conferenze).
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