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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 Sci+Rep
2018 ; 8
(1
): 10647
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Blocking CCL5-CXCL4 heteromerization preserves heart function after myocardial
infarction by attenuating leukocyte recruitment and NETosis
#MMPMID30006564
Vajen T
; Koenen RR
; Werner I
; Staudt M
; Projahn D
; Curaj A
; Sönmez TT
; Simsekyilmaz S
; Schumacher D
; Möllmann J
; Hackeng TM
; Hundelshausen PV
; Weber C
; Liehn EA
Sci Rep
2018[Jul]; 8
(1
): 10647
PMID30006564
show ga
Myocardial infarction (MI) is a major cause of death in Western countries and
finding new strategies for its prevention and treatment is thus of high priority.
In a previous study, we have demonstrated a pathophysiologic relevance for the
heterophilic interaction of CCL5 and CXCL4 in the progression of atherosclerosis.
A specifically designed compound (MKEY) to block this CCL5-CXCR4 interaction is
investigated as a potential therapeutic in a model of myocardial
ischemia/reperfusion (I/R) damage. 8 week-old male C57BL/6 mice were
intravenously treated with MKEY or scrambled control (sMKEY) from 1 day before,
until up to 7 days after I/R. By using echocardiography and intraventricular
pressure measurements, MKEY treatment resulted in a significant decrease in
infarction size and preserved heart function as compared to sMKEY-treated
animals. Moreover, MKEY treatment significantly reduced the inflammatory reaction
following I/R, as revealed by specific staining for neutrophils and
monocyte/macrophages. Interestingly, MKEY treatment led to a significant
reduction of citrullinated histone 3 in the infarcted tissue, showing that MKEY
can prevent neutrophil extracellular trap formation in vivo. Disrupting chemokine
heterodimers during myocardial I/R might have clinical benefits, preserving the
therapeutic benefit of blocking specific chemokines, and in addition, reducing
the inflammatory side effects maintaining normal immune defence.
|Animals
[MESH]
|Cardiotonic Agents/pharmacology/*therapeutic use
[MESH]