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2016 ; 6
(ä): 37172
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ELMO1 protects renal structure and ultrafiltration in kidney development and
under diabetic conditions
#MMPMID27849017
Sharma KR
; Heckler K
; Stoll SJ
; Hillebrands JL
; Kynast K
; Herpel E
; Porubsky S
; Elger M
; Hadaschik B
; Bieback K
; Hammes HP
; Nawroth PP
; Kroll J
Sci Rep
2016[Nov]; 6
(ä): 37172
PMID27849017
show ga
Engulfment and cell motility 1 (ELMO1) functions as a guanine exchange factor for
Rac1 and was recently found to protect endothelial cells from apoptosis. Genome
wide association studies suggest that polymorphisms within human elmo1 act as a
potential contributing factor for the development of diabetic nephropathy. Yet,
the function of ELMO1 with respect to the glomerulus and how this protein
contributes to renal pathology was unknown. Thus, this study aimed to identify
the role played by ELMO1 in renal development in zebrafish, under hyperglycaemic
conditions, and in diabetic nephropathy patients. In zebrafish, hyperglycaemia
did not alter renal ELMO1 expression. However, hyperglycaemia leads to
pathophysiological and functional alterations within the pronephros, which could
be rescued via ELMO1 overexpression. Zebrafish ELMO1 crispants exhibited a renal
pathophysiology due to increased apoptosis which could be rescued by the
inhibition of apoptosis. In human samples, immunohistochemical staining of ELMO1
in nondiabetic, diabetic and polycystic kidneys localized ELMO1 in glomerular
podocytes and in the tubules. However, ELMO1 was not specifically or distinctly
regulated under either one of the disease conditions. Collectively, these results
highlight ELMO1 as an important factor for glomerular protection and renal cell
survival via decreasing apoptosis, especially under diabetic conditions.
|*Apoptosis
[MESH]
|Adaptor Proteins, Signal Transducing/genetics/*metabolism
[MESH]