Kathryn W. Davis Center for Regenerative Biology and Aging, Mount Desert Island Biological Laboratory, Maine, United States of America
Research Article
Roles of Progranulin and FRamides in Neural Versus Non-Neural Tissues on Dietary Restriction-Related Longevity and Proteostasis in C. elegans
Author(s): Dilawar Ahmad Mir*, Matthew Cox, Jordan Horrocks, Zhengxin Ma and Aric Rogers
Dietary Restriction (DR) mitigates loss of proteostasis associated with aging that underlies neurodegenerative conditions including Alzheimer’s disease and related dementias. Previously, we observed increased translational efficiency of certain FMRFamide-Like neuro-Peptide (FLP) genes and the neuroprotective growth factor progranulin gene prgn-1 under dietary restriction in C. elegans. Here, we tested the effects of flp-5, flp-14, flp-15 and pgrn-1 on lifespan and proteostasis under both standard and dietary restriction conditions. We also tested and distinguished function based on their expression in either neuronal or non-neuronal tissue. Lowering the expression of pgrn-1 and flp genes selectively in neural tissue showed no difference in survival under normal feeding conditions nor under DR in two out of t.. View more»