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In vivo efficacy of combination of colistin with fosfomycin or minocycline in a mouse model of multidrug-resistant Acinetobacter baumannii pneumonia

Authors
 Nam Su Ku  ;  Su-Hyung Lee  ;  Young- soun Lim  ;  Heun Choi  ;  Jin Young Ahn  ;  Su Jin Jeong  ;  Sung Jae Shin  ;  Jun Yong Choi  ;  Young Hwa Choi  ;  Joon-Sup Yeom  ;  Dongeun Yong  ;  Young Goo Song  ;  June Myung Kim 
Citation
 SCIENTIFIC REPORTS, Vol.9(1) : e17127, 2019 
Journal Title
SCIENTIFIC REPORTS
Issue Date
2019
Abstract
Unfortunately, the options for treating multidrug-resistant (MDR) Acinetobacter baumannii (A. baumannii) infections are extremely limited. Recently, fosfomycin and minocycline were newly introduced as a treatment option for MDR A. baumannii infection. Therefore, we investigated the efficacy of the combination of colistin with fosfomycin and minocycline, respectively, as therapeutic options in MDR A. baumannii pneumonia. We examined a carbapenem-resistant A. baumannii isolated from clinical specimens at Severance Hospital, Seoul, Korea. The effect of colistin with fosfomycin, and colistin with minocycline on the bacterial counts in lung tissue was investigated in a mouse model of pneumonia caused by MDR A. baumannii. In vivo, colistin with fosfomycin or minocycline significantly (p < 0.05) reduced the bacterial load in the lungs compared with the controls at 24 and 48 h. In the combination groups, the bacterial loads differed significantly (p < 0.05) from that with the more active antimicrobial alone. Moreover, the combination regimens of colistin with fosfomycin and colistin with minocycline showed bactericidal and synergistic effects compared with the more active antimicrobial alone at 24 and 48 h. This study demonstrated the synergistic effects of combination regimens of colistin with fosfomycin and minocycline, respectively, as therapeutic options in pneumonia caused by MDR A. baumannii.
Files in This Item:
T201904849.pdf Download
DOI
10.1038/s41598-019-53714-0
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Laboratory Medicine (진단검사의학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Microbiology (미생물학교실) > 1. Journal Papers
Yonsei Authors
Ku, Nam Su(구남수) ORCID logo https://orcid.org/0000-0002-9717-4327
Kim, June Myung(김준명)
Song, Young Goo(송영구) ORCID logo https://orcid.org/0000-0002-0733-4156
Shin, Sung Jae(신성재) ORCID logo https://orcid.org/0000-0003-0854-4582
Ahn, Jin Young(안진영) ORCID logo https://orcid.org/0000-0002-3740-2826
Yeom, Joon Sup(염준섭) ORCID logo https://orcid.org/0000-0001-8940-7170
Yong, Dong Eun(용동은) ORCID logo https://orcid.org/0000-0002-1225-8477
Jeong, Su Jin(정수진) ORCID logo https://orcid.org/0000-0003-4025-4542
Choi, Jun Yong(최준용) ORCID logo https://orcid.org/0000-0002-2775-3315
Choi, Heun(최흔) ORCID logo https://orcid.org/0000-0002-9622-9381
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/173533
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