1
|
Fang Y, Baloch Z, Zhang W, Hu Y, Zheng R, Song Y, Tai W, Xia X. Emergence of Carbapenem-Resistant ST244, ST292, and ST2446 Pseudomonas aeruginosa Clones in Burn Patients in Yunnan Province. Infect Drug Resist 2022; 15:1103-1114. [PMID: 35321081 PMCID: PMC8935738 DOI: 10.2147/idr.s353130] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Accepted: 03/08/2022] [Indexed: 12/13/2022] Open
Abstract
Introduction The prevalence of carbapenem-resistant Pseudomonas aeruginosa is increasing persistently, particularly in burn ward isolates. Here, we investigate the prevalence of carbapenem-resistant Pseudomonas aeruginosa in a burn ward of a provincial-level hospital at Kunming, Yunnan province, China. Methods A total of 118 P. aeruginosa strains were isolated from 57 hospitalized patients, and their MICs were measured. Carbapenem-resistant isolates were selected for multilocus sequence typing (MLST). Carbapenem-resistance mechanisms were identified by examining carbapenemase genes and OprD protein and Carba-NP testing. Representative isolates were further characterized by de novo sequencing for carbapenemase molecular background. Results Among 118 P. aeruginosa isolates, 54 (54/118,45.8%) were carbapenem-resistant Pseudomonas aeruginosa, and 3 genotypes were found (ST292, ST244, and ST2446). Non-carbapenemase-producing ST292 was the most prevalent ST, followed by ST2446 and ST244. A novel 13-bp oprD deletion was found in the ST292 clone, which formed the truncated outer membrane protein and may cause carbapenem resistance. ST244 and ST2446 harbored blaIMP-45 and blaIMP-87, respectively. blaIMP-45 is located in a megaplasmid, together with aac(6’)-Ib3, blaOXA-1, catB3, qnrVC6, armA, msr(E), mph(E), aph(3’)-Ia, tetC/tetR, aac(6’)-Ib3, floR, mexC-mexD-oprJ, fosA and lead to extensive drug resistance. ST2446 contains a carbapenem-resistant gene blaIMP-87 on the chromosome and is acquired by a novel gene cassette array (blaIMP-87-ant(2”)-Ia-blaOXA-10-aac(6’)-Ib3) of class 1 integron. Discussion For the first time, ST244, ST292 and ST2446 are reported emerging in burn patients, with distinctive carbapenem-resistance mechanisms, respectively. The obtained results highlight the need to surveillance carbapenem-resistant isolates in burn patients.
Collapse
Affiliation(s)
- Yue Fang
- The Affiliated AnNing First Hospital & Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, Yunnan, 650500, People’s Republic of China
| | - Zulqarnain Baloch
- The Affiliated AnNing First Hospital & Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, Yunnan, 650500, People’s Republic of China
| | - Wei Zhang
- The 2nd Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, 650101, People’s Republic of China
| | - Ying Hu
- The 2nd Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, 650101, People’s Republic of China
| | - Rui Zheng
- The First Hospital of Yunnan Province & The Affiliated Hospital, Kunming University of Science and Technology, Kunming, Yunnan, 650034, People’s Republic of China
| | - Yuzhu Song
- The Affiliated AnNing First Hospital & Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, Yunnan, 650500, People’s Republic of China
- Correspondence: Yuzhu Song; Xueshan Xia, Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, Yunnan, 650500, People’s Republic of China, Tel +86-871-65920756, Fax +86-871-65920570, Email ;
| | - Wenlin Tai
- The 2nd Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, 650101, People’s Republic of China
| | - Xueshan Xia
- The Affiliated AnNing First Hospital & Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, Yunnan, 650500, People’s Republic of China
| |
Collapse
|
2
|
Malchione MD, Torres LM, Hartley DM, Koch M, Goodman JL. Carbapenem and colistin resistance in Enterobacteriaceae in Southeast Asia: Review and mapping of emerging and overlapping challenges. Int J Antimicrob Agents 2019; 54:381-399. [DOI: 10.1016/j.ijantimicag.2019.07.019] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Revised: 07/16/2019] [Accepted: 07/21/2019] [Indexed: 01/21/2023]
|
3
|
Khuntayaporn P, Yamprayoonswat W, Yasawong M, Chomnawang MT. Dissemination of Carbapenem-Resistance among Multidrug Resistant Pseudomonas aeruginosa carrying Metallo-Beta-Lactamase Genes, including the Novel blaIMP-65 Gene in Thailand. Infect Chemother 2019; 51:107-118. [PMID: 31270990 PMCID: PMC6609741 DOI: 10.3947/ic.2019.51.2.107] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2018] [Accepted: 12/27/2018] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Pseudomonas aeruginosa is considered as one of the most emerging threats in this century. Serious infections caused by this pathogen are often treated by carbapenems which are the last resource of antibiotics. Metallo-beta-lactamases (MBLs) production is one of the most important carbepenem resistance mechanisms and is usually related with nosocomial infections caused by P. aeruginosa. This study was aimed to determine the prevalence of MBL genes and distribution pattern of MBLs producing P. aeruginosa strains in Thailand. MATERIALS AND METHODS Specific primers were designed to detect MBL genes including IMP-, VIM-, and NDM-type MBL genes. Multilocus sequence typing method was used to determine the dissemination pattern of carbapenem-resistance among multidrug-resistant (CR-MDR) P. aeruginosa. RESULTS A total of 153 P. aeruginosa clinical isolates were characterized as CR-MDR. Among those, 31 P. aeruginosa clinical isolates (20.3%) presented metallo-beta-lactamase genes which could be divided into VIM-type (14 strains) and IMP-type (17 strains). blaIMP-1, blaIMP-13, blaIMP-14a, and blaVIM-2 genes were detected. Moreover, a novel IMP-type MBL, blaIMP-65 was discovered and it was demonstrated to be the unique group of MBLs in Thailand. It was of interest that ST235 was the major ST type in Thailand followed by ST964 and ST111 and ST235 was detected in both MBL harboring and non-MBL harboring strains. CONCLUSION This study reported the dissemination of MBL gene including novel MBL, blaIMP-65. This study was also demonstrated major ST of P. aeruginosa which was ST235, followed by ST964 and ST111. Moreover, it is also the first report on many P. aeruginosa STs in Thailand: ST273, ST292, ST621, ST1584, and ST1816 which emphasized the dissemination trait difference of MBLs harboring P. aeruginosa in Thailand.
Collapse
Affiliation(s)
- Piyatip Khuntayaporn
- Department of Microbiology, Faculty of Pharmacy, Mahidol University, Bangkok, Thailand.
| | - Wariya Yamprayoonswat
- Department of Microbiology, Faculty of Pharmacy, Mahidol University, Bangkok, Thailand.,Chulabhorn Graduate Institute, Chulabhorn Royal Academy, Bangkok, Thailand
| | - Montri Yasawong
- Chulabhorn Graduate Institute, Chulabhorn Royal Academy, Bangkok, Thailand
| | | |
Collapse
|