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Colistin-resistant, lipopolysaccharide-deficient Acinetobacter baumannii responds to lipopolysaccharide loss through increased expression of genes involved in the synthesis and transport of lipoproteins, phospholipids, and poly-β-1,6-N-acetylglucosamine.

Henry R, Vithanage N, Harrison P, Seemann T, Coutts S, Moffatt JH, Nation RL, Li J, Harper M, Adler B, Boyce JD.

Antimicrob Agents Chemother. 2012 Jan;56(1):59-69. doi: 10.1128/AAC.05191-11. Epub 2011 Oct 24.


Colistin resistance in Acinetobacter baumannii is mediated by complete loss of lipopolysaccharide production.

Moffatt JH, Harper M, Harrison P, Hale JD, Vinogradov E, Seemann T, Henry R, Crane B, St Michael F, Cox AD, Adler B, Nation RL, Li J, Boyce JD.

Antimicrob Agents Chemother. 2010 Dec;54(12):4971-7. doi: 10.1128/AAC.00834-10. Epub 2010 Sep 20.


Transcriptomic analysis of colistin-susceptible and colistin-resistant isolates identifies genes associated with colistin resistance in Acinetobacter baumannii.

Park YK, Lee JY, Ko KS.

Clin Microbiol Infect. 2015 Aug;21(8):765.e1-7. doi: 10.1016/j.cmi.2015.04.009. Epub 2015 Apr 23.


Different surface charge of colistin-susceptible and -resistant Acinetobacter baumannii cells measured with zeta potential as a function of growth phase and colistin treatment.

Soon RL, Nation RL, Cockram S, Moffatt JH, Harper M, Adler B, Boyce JD, Larson I, Li J.

J Antimicrob Chemother. 2011 Jan;66(1):126-33. doi: 10.1093/jac/dkq422. Epub 2010 Nov 16.


Insertion sequence ISAba11 is involved in colistin resistance and loss of lipopolysaccharide in Acinetobacter baumannii.

Moffatt JH, Harper M, Adler B, Nation RL, Li J, Boyce JD.

Antimicrob Agents Chemother. 2011 Jun;55(6):3022-4. doi: 10.1128/AAC.01732-10. Epub 2011 Mar 14.


Lipopolysaccharide loss produces partial colistin dependence and collateral sensitivity to azithromycin, rifampicin and vancomycin in Acinetobacter baumannii.

García-Quintanilla M, Carretero-Ledesma M, Moreno-Martínez P, Martín-Peña R, Pachón J, McConnell MJ.

Int J Antimicrob Agents. 2015 Dec;46(6):696-702. doi: 10.1016/j.ijantimicag.2015.07.017. Epub 2015 Sep 7.


Colistin-Resistant Acinetobacter baumannii Clinical Strains with Deficient Biofilm Formation.

Dafopoulou K, Xavier BB, Hotterbeekx A, Janssens L, Lammens C, Dé E, Goossens H, Tsakris A, Malhotra-Kumar S, Pournaras S.

Antimicrob Agents Chemother. 2015 Dec 14;60(3):1892-5. doi: 10.1128/AAC.02518-15.


genetic determinants of intrinsic colistin tolerance in Acinetobacter baumannii.

Hood MI, Becker KW, Roux CM, Dunman PM, Skaar EP.

Infect Immun. 2013 Feb;81(2):542-51. doi: 10.1128/IAI.00704-12. Epub 2012 Dec 10. Erratum in: Infect Immun. 2014 Jan;82(1):469.


Growth retardation, reduced invasiveness, and impaired colistin-mediated cell death associated with colistin resistance development in Acinetobacter baumannii.

Pournaras S, Poulou A, Dafopoulou K, Chabane YN, Kristo I, Makris D, Hardouin J, Cosette P, Tsakris A, Dé E.

Antimicrob Agents Chemother. 2014;58(2):828-32. doi: 10.1128/AAC.01439-13. Epub 2013 Nov 18.


Phosphoethanolamine modification of lipid A in colistin-resistant variants of Acinetobacter baumannii mediated by the pmrAB two-component regulatory system.

Beceiro A, Llobet E, Aranda J, Bengoechea JA, Doumith M, Hornsey M, Dhanji H, Chart H, Bou G, Livermore DM, Woodford N.

Antimicrob Agents Chemother. 2011 Jul;55(7):3370-9. doi: 10.1128/AAC.00079-11. Epub 2011 May 16.


Colistin resistance of Acinetobacter baumannii: clinical reports, mechanisms and antimicrobial strategies.

Cai Y, Chai D, Wang R, Liang B, Bai N.

J Antimicrob Chemother. 2012 Jul;67(7):1607-15. doi: 10.1093/jac/dks084. Epub 2012 Mar 22. Review.


Impaired virulence and in vivo fitness of colistin-resistant Acinetobacter baumannii.

López-Rojas R, Domínguez-Herrera J, McConnell MJ, Docobo-Peréz F, Smani Y, Fernández-Reyes M, Rivas L, Pachón J.

J Infect Dis. 2011 Feb 15;203(4):545-8. doi: 10.1093/infdis/jiq086. Epub 2011 Jan 7.


Lipopolysaccharide-deficient Acinetobacter baumannii shows altered signaling through host Toll-like receptors and increased susceptibility to the host antimicrobial peptide LL-37.

Moffatt JH, Harper M, Mansell A, Crane B, Fitzsimons TC, Nation RL, Li J, Adler B, Boyce JD.

Infect Immun. 2013 Mar;81(3):684-9. doi: 10.1128/IAI.01362-12. Epub 2012 Dec 17.


Effect of colistin exposure and growth phase on the surface properties of live Acinetobacter baumannii cells examined by atomic force microscopy.

Soon RL, Nation RL, Harper M, Adler B, Boyce JD, Tan CH, Li J, Larson I.

Int J Antimicrob Agents. 2011 Dec;38(6):493-501. doi: 10.1016/j.ijantimicag.2011.07.014. Epub 2011 Sep 16.


Genomic insights into the fate of colistin resistance and Acinetobacter baumannii during patient treatment.

Snitkin ES, Zelazny AM, Gupta J; NISC Comparative Sequencing Program, Palmore TN, Murray PR, Segre JA.

Genome Res. 2013 Jul;23(7):1155-62. doi: 10.1101/gr.154328.112. Epub 2013 Apr 5.


The transcriptomic response of Acinetobacter baumannii to colistin and doripenem alone and in combination in an in vitro pharmacokinetics/pharmacodynamics model.

Henry R, Crane B, Powell D, Deveson Lucas D, Li Z, Aranda J, Harrison P, Nation RL, Adler B, Harper M, Boyce JD, Li J.

J Antimicrob Chemother. 2015 May;70(5):1303-13. doi: 10.1093/jac/dku536. Epub 2015 Jan 14.


Real-time sequencing to decipher the molecular mechanism of resistance of a clinical pan-drug-resistant Acinetobacter baumannii isolate from Marseille, France.

Rolain JM, Diene SM, Kempf M, Gimenez G, Robert C, Raoult D.

Antimicrob Agents Chemother. 2013 Jan;57(1):592-6. doi: 10.1128/AAC.01314-12. Epub 2012 Oct 15.


Colistin resistance in a clinical Acinetobacter baumannii strain appearing after colistin treatment: effect on virulence and bacterial fitness.

López-Rojas R, McConnell MJ, Jiménez-Mejías ME, Domínguez-Herrera J, Fernández-Cuenca F, Pachón J.

Antimicrob Agents Chemother. 2013 Sep;57(9):4587-9. doi: 10.1128/AAC.00543-13. Epub 2013 Jul 8.


Acinetobacter baumannii resistant to colistin alters its antibiotic resistance profile: a case report from Spain.

López-Rojas R, Jiménez-Mejías ME, Lepe JA, Pachón J.

J Infect Dis. 2011 Oct 1;204(7):1147-8. doi: 10.1093/infdis/jir476. No abstract available.


Emergence of colistin resistance without loss of fitness and virulence after prolonged colistin administration in a patient with extensively drug-resistant Acinetobacter baumannii.

Durante-Mangoni E, Del Franco M, Andini R, Bernardo M, Giannouli M, Zarrilli R.

Diagn Microbiol Infect Dis. 2015 Jul;82(3):222-6. doi: 10.1016/j.diagmicrobio.2015.03.013. Epub 2015 Mar 25.


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