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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Appl+Environ+Microbiol
2016 ; 82
(1
): 87-94
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Combination Therapy of LysGH15 and Apigenin as a New Strategy for Treating
Pneumonia Caused by Staphylococcus aureus
#MMPMID26475103
Xia F
; Li X
; Wang B
; Gong P
; Xiao F
; Yang M
; Zhang L
; Song J
; Hu L
; Cheng M
; Sun C
; Feng X
; Lei L
; Ouyang S
; Liu ZJ
; Li X
; Gu J
; Han W
Appl Environ Microbiol
2016[Jan]; 82
(1
): 87-94
PMID26475103
show ga
Pneumonia is one of the most prevalent Staphylococcus aureus-mediated diseases,
and the treatment of this infection is becoming challenging due to the emergence
of multidrug-resistant S. aureus, especially methicillin-resistant S. aureus
(MRSA) strains. It has been reported that LysGH15, the lysin derived from phage
GH15, displays high efficiency and a broad lytic spectrum against MRSA and that
apigenin can markedly diminish the alpha-hemolysin of S. aureus. In this study,
the combination therapy of LysGH15 and apigenin was evaluated in vitro and in a
mouse S. aureus pneumonia model. No mutual adverse influence was detected between
LysGH15 and apigenin in vitro. In animal experiments, the combination therapy
showed a more effective treatment effect than LysGH15 or apigenin monotherapy (P
< 0.05). The bacterial load in the lungs of mice administered the combination
therapy was 1.5 log units within 24 h after challenge, whereas the loads in
unprotected mice or mice treated with apigenin or LysGH15 alone were 10.2, 4.7,
and 2.6 log units, respectively. The combination therapy group showed the best
health status, the lowest ratio of wet tissue to dry tissue of the lungs, the
smallest amount of total protein and cells in the lung, the fewest pathological
manifestations, and the lowest cytokine level compared with the other groups (P <
0.05). With regard to its better protective efficacy, the combination therapy of
LysGH15 and apigenin exhibits therapeutic potential for treating pneumonia caused
by MRSA. This paper reports the combination therapy of lysin and natural products
derived from traditional Chinese medicine.