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2017 ; 7
(1
): 2614
Nephropedia Template TP
gab.com Text
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English Wikipedia
?BO1E, a newly discovered lytic bacteriophage targeting carbapenemase-producing
Klebsiella pneumoniae of the pandemic Clonal Group 258 clade II lineage
#MMPMID28572684
D'Andrea MM
; Marmo P
; Henrici De Angelis L
; Palmieri M
; Ciacci N
; Di Lallo G
; Demattè E
; Vannuccini E
; Lupetti P
; Rossolini GM
; Thaller MC
Sci Rep
2017[Jun]; 7
(1
): 2614
PMID28572684
show ga
The pandemic dissemination of KPC carbapenemase-producing Klebsiella pneumoniae
(KPC-KP) represents a major public health problem, given their extensive
multidrug resistance profiles and primary role in causing healthcare-associated
infections. This phenomenon has largely been contributed by strains of Clonal
Group (CG) 258, mostly of clade II, which in some areas represent the majority of
KPC-KP isolates. Here we have characterized a newly discovered lytic Podoviridae,
named ?BO1E, targeting KPC-KP strains of clade II lineage of CG258. Genomic
sequencing revealed that ?BO1E belongs to the Kp34virus genus (87% nucleotide
identity to vB_KpnP_SU552A). ?BO1E was stable over a broad pH and temperature
range, exhibited strict specificity for K. pneumoniae strains of clade II of
CG258, and was unable to establish lysogeny. In a Galleria mellonella infection
model, ?BO1E was able to protect larvae from death following infection with
KPC-KP strains of clade II of CG258, including one colistin resistant strain
characterized by a hypermucoviscous phenotype. To our best knowledge ?BO1E is the
first characterized lytic phage targeting K. pneumoniae strains of this pandemic
clonal lineage. As such, it could be of potential interest to develop new agents
for treatment of KPC-KP infections and for decolonization of subjects chronically
colonized by these resistant superbugs.