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2017 ; 8
(21
): 34191-34204
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gab.com Text
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Involvement of heparanase in the pathogenesis of acute kidney injury:
nephroprotective effect of PG545
#MMPMID28388547
Abassi Z
; Hamoud S
; Hassan A
; Khamaysi I
; Nativ O
; Heyman SN
; Muhammad RS
; Ilan N
; Singh P
; Hammond E
; Zaza G
; Lupo A
; Onisto M
; Bellin G
; Masola V
; Vlodavsky I
; Gambaro G
Oncotarget
2017[May]; 8
(21
): 34191-34204
PMID28388547
show ga
Despite the high prevalence of acute kidney injury (AKI) and its association with
increased morbidity and mortality, therapeutic approaches for AKI are
disappointing. This is largely attributed to poor understanding of the
pathogenesis of AKI. Heparanase, an endoglycosidase that cleaves heparan sulfate,
is involved in extracellular matrix turnover, inflammation, kidney dysfunction,
diabetes, fibrosis, angiogenesis and cancer progression. The current study
examined the involvement of heparanase in the pathogenesis of ischemic
reperfusion (I/R) AKI in a mouse model and the protective effect of PG545, a
potent heparanase inhibitor. I/R induced tubular damage and elevation in serum
creatinine and blood urea nitrogen to a higher extent in heparanase
over-expressing transgenic mice vs. wild type mice. Moreover, TGF-?, vimentin,
fibronectin and ?-smooth muscle actin, biomarkers of fibrosis, and TNF?, IL6 and
endothelin-1, biomarkers of inflammation, were upregulated in I/R induced AKI,
primarily in heparanase transgenic mice, suggesting an adverse role of heparanase
in the pathogenesis of AKI. Remarkably, pretreatment of mice with PG545 abolished
kidney dysfunction and the up-regulation of heparanase, pro-inflammatory (i.e.,
IL-6) and pro-fibrotic (i.e., TGF-?) genes induced by I/R. The present study
provides new insights into the involvement of heparanase in the pathogenesis of
ischemic AKI.Our results demonstrate that heparanase plays a deleterious role in
the development of renal injury and kidney dysfunction,attesting heparanase
inhibition as a promising therapeutic approach for AKI.