Reduction in ins-7 gene expression in non-neuronal cells of high glucose exposed Caenorhabditis elegans protects from reactive metabolites, preserves neuronal structure and head motility, and prolongs lifespan

Background: Glucose derived metabolism generates reactive metabolites affecting the neuronal system and lifespan in C. elegans. Here, the role of the insulin homologue ins-7 and its downstream effectors in the generation of high glucose induced neuronal damage and shortening of lifespan was studied....

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Hauptverfasser: Mendler, Michael (VerfasserIn) , Riedinger, Christin (VerfasserIn) , Schlotterer, Andrea (VerfasserIn) , Volk, Nadine (VerfasserIn) , Fleming, Thomas (VerfasserIn) , Herzig, Stephan (VerfasserIn) , Nawroth, Peter Paul (VerfasserIn) , Morcos, Michael (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: 2017
In: Journal of diabetes and its complications
Year: 2017, Jahrgang: 31, Heft: 2, Pages: 304-310
ISSN:1873-460X
DOI:10.1016/j.jdiacomp.2016.09.014
Online-Zugang:Verlag, Volltext: http://dx.doi.org/10.1016/j.jdiacomp.2016.09.014
Verlag, Volltext: http://www.sciencedirect.com/science/article/pii/S1056872716306365
Volltext
Verfasserangaben:Michael Mendler, Christin Riedinger, Andrea Schlotterer, Nadine Volk, Thomas Fleming, Stephan Herzig, Peter P. Nawroth, Michael Morcos

MARC

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520 |a Background: Glucose derived metabolism generates reactive metabolites affecting the neuronal system and lifespan in C. elegans. Here, the role of the insulin homologue ins-7 and its downstream effectors in the generation of high glucose induced neuronal damage and shortening of lifespan was studied. Results: In C. elegans high glucose conditions induced the expression of the insulin homologue ins-7. Abrogating ins-7 under high glucose conditions in non-neuronal cells decreased reactive oxygen species (ROS)-formation and accumulation of methylglyoxal derived advanced glycation endproducts (AGEs), prevented structural neuronal damage and normalised head motility and lifespan. The restoration of lifespan by decreased ins-7 expression was dependent on the concerted action of sod-3 and glod-4 coding for the homologues of iron-manganese superoxide dismutase and glyoxalase 1, respectively. Conclusions: Under high glucose conditions mitochondria-mediated oxidative stress and glycation are downstream targets of ins-7. This impairs the neuronal system and longevity via a non-neuronal/neuronal crosstalk by affecting sod-3 and glod-4, thus giving further insight into the pathophysiology of diabetic complications. 
650 4 |a Diabetic neuropathy 
650 4 |a Glycation/AGE 
650 4 |a Insulin action 
650 4 |a Longevity 
650 4 |a Neuronal function 
650 4 |a Oxidative stress/ROS 
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