In vitro activities of tritrpticin alone and in combination with other antimicrobial agents against Pseudomonas aeruginosa

被引:19
作者
Cirioni, Oscar [1 ]
Giacometti, Andrea [1 ]
Silvestri, Carmela [1 ]
Della Vittoria, Agnese [1 ]
Licci, Alberto [1 ]
Riva, Alessandra [1 ]
Scalise, Giorgio [1 ]
机构
[1] Univ Politecn Marche, Osped Riuniti Ancona, Inst Infect Dis & Publ Hlth, Ancona, Italy
关键词
PEPTIDE TRITRPTICIN; ANTIBIOTICS; RESISTANCE; MECHANISMS; EMERGENCE;
D O I
10.1128/AAC.00652-06
中图分类号
Q93 [微生物学];
学科分类号
071005 ; 100705 ;
摘要
The in vitro activity of the cathelicidin tritrpticin was investigated against multidrug-resistant Pseudomonas aeruginosa. The isolates were susceptible to the peptide at concentrations of 0.50 to 8 mg/liter. Tritrpticin completely inhibits lipopolysaccharide procoagulant activity at a 10 p,M concentration. Fractionary inhibitory concentration indexes (0.385, 0.312, and 0.458) demonstrated synergy between the peptide and beta-lactams.
引用
收藏
页码:3923 / 3925
页数:3
相关论文
共 23 条
[1]   ANTIMICROBIAL PEPTIDES - A FAMILY OF WOUND HEALERS [J].
CANNON, M .
NATURE, 1987, 328 (6130) :478-478
[2]   Emergence of antibiotic-resistant Pseudomonas aeruginosa:: Comparison of risks associated with different antipseudomonal agents [J].
Carmeli, Y ;
Troillet, N ;
Eliopoulos, GM ;
Samore, MH .
ANTIMICROBIAL AGENTS AND CHEMOTHERAPY, 1999, 43 (06) :1379-1382
[3]   Effectiveness of combination antimicrobial therapy for Pseudomonas aeruginosa bacteremia [J].
Chamot, E ;
El Amari, EB ;
Rohner, P ;
Van Delden, C .
ANTIMICROBIAL AGENTS AND CHEMOTHERAPY, 2003, 47 (09) :2756-2764
[4]  
COHEN J, 1985, LANCET, V2, P1069
[5]   BETA-LACTAM ANTIBIOTICS POTENTIATE MAGAININ-2 ANTIMICROBIAL ACTIVITY INVITRO AND INVIVO [J].
DARVEAU, RP ;
CUNNINGHAM, MD ;
SEACHORD, CL ;
CASSIANOCLOUGH, L ;
COSAND, WL ;
BLAKE, J ;
WATKINS, CS .
ANTIMICROBIAL AGENTS AND CHEMOTHERAPY, 1991, 35 (06) :1153-1159
[6]   Covalent polymyxin B conjugate with human immunoglobulin G as an antiendotoxin reagent [J].
Drabick, JJ ;
Bhattacharjee, AK ;
Hoover, DL ;
Siber, GE ;
Morales, VE ;
Young, LD ;
Brown, SL ;
Cross, AS .
ANTIMICROBIAL AGENTS AND CHEMOTHERAPY, 1998, 42 (03) :583-588
[7]  
Eliopolous GM., 1996, Antibiotics in laboratory medicine, P330
[8]   Cathelicidin peptide sheep myeloid antimicrobial peptide-29 prevents endotoxin-induced mortality in rat models of septic shock [J].
Giacometti, A ;
Cirioni, O ;
Ghiselli, R ;
Mocchegiani, F ;
D'Amato, G ;
Circo, R ;
Orlando, F ;
Skerlavaj, B ;
Silvestri, C ;
Saba, V ;
Zanetti, M ;
Scalise, G .
AMERICAN JOURNAL OF RESPIRATORY AND CRITICAL CARE MEDICINE, 2004, 169 (02) :187-194
[9]   Antiendotoxin activity of cationic peptide antimicrobial agents [J].
Gough, M ;
Hancock, REW ;
Kelly, NM .
INFECTION AND IMMUNITY, 1996, 64 (12) :4922-4927
[10]   The role of antimicrobial peptides in animal defenses [J].
Hancock, REW ;
Scott, MG .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2000, 97 (16) :8856-8861