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2018 ; 41
(3
): 1293-1304
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Anti-inflammatory effects of Lefty-1 in renal tubulointerstitial inflammation via
regulation of the NF-?B pathway
#MMPMID29286065
Zhang L
; Xu C
; Hu W
; Wu P
; Qin C
; Zhang J
Int J Mol Med
2018[Mar]; 41
(3
): 1293-1304
PMID29286065
show ga
Renal tubulointerstitial inflammation has an important role in fibrosis, which is
the main pathogenetic alteration associated with chronic kidney disease (CKD).
The left?right determination factor 1 (Lefty?1) gene pleiotropically and
biologically regulates transforming growth factor, mitogen?activated protein
kinase and other signaling pathways, and is considered to have a potential
anti?inflammatory function. However, its role in renal tubulointerstitial
inflammation, which is often a long?term consequence of renal fibrosis, is
currently unknown. In the present study, the effects of adenovirus?mediated
overexpression of Lefty?1 (Ad?Lefty?1?flag) on renal tubulointerstitial
inflammation were determined using a mouse model of unilateral ureteral
obstruction (UUO) and a rat renal tubular duct epithelial cell line (NRK?52E),
which was treated with lipopolysaccharide (LPS). In vivo results indicated that
the inflammatory response was increased in UUO mice, as evidenced by the increase
in inflammatory cytokines and chemokines. Conversely, Lefty?1 significantly
reversed the effects of UUO. Furthermore, the results of the in vitro study
demonstrated that Lefty?1 significantly inhibited LPS?induced inflammatory marker
expression in cultured NRK?52E cells via the nuclear factor (NF)??B signaling
pathway. These results suggested that Lefty?1 may ameliorate renal
tubulointerstitial inflammation by suppressing NF??B signaling. In conclusion,
the findings of the present study indicated that Lefty?1 may be considered a
potential novel therapeutic agent for inhibiting renal tubulointerstitial
inflammation or even reversing the CKD process.