PUBLICATION

ELMO1 protects renal structure and ultrafiltration in kidney development and under diabetic conditions

Authors
Sharma, K.R., Heckler, K., Stoll, S.J., Hillebrands, J.L., Kynast, K., Herpel, E., Porubsky, S., Elger, M., Hadaschik, B., Bieback, K., Hammes, H.P., Nawroth, P.P., Kroll, J.
ID
ZDB-PUB-161117-3
Date
2016
Source
Scientific Reports   6: 37172 (Journal)
Registered Authors
Elger, Marlies, Kroll, Jens, Sharma, Krishna, Stoll, Sandra
Keywords
Kidney
MeSH Terms
  • Adaptor Proteins, Signal Transducing/genetics
  • Adaptor Proteins, Signal Transducing/metabolism*
  • Animals
  • Animals, Genetically Modified
  • Apoptosis*
  • Diabetes Mellitus, Experimental/embryology*
  • Diabetes Mellitus, Experimental/genetics
  • Diabetes Mellitus, Experimental/pathology
  • Humans
  • Kidney/embryology*
  • Kidney/pathology
  • Zebrafish/embryology*
  • Zebrafish/genetics
  • Zebrafish Proteins/genetics
  • Zebrafish Proteins/metabolism*
PubMed
27849017 Full text @ Sci. Rep.
Abstract
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.
Genes / Markers
Figures
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Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Antibodies
Orthology
Engineered Foreign Genes
Mapping