Abstract
Aging induces cellular and molecular changes including modification of stem cell pools. In particular, alterations in aging neural stem cells (NSCs) are linked to age-related cognitive decline which can be modulated by lifestyle. Nutrient-sensing pathways provide a molecular basis for the link between lifestyle and cognitive decline.
Adopting a back-translation strategy using stem cell biology to inform epidemiological analyses, here we show associations between cellular readouts of NSC maintenance and expression levels of nutrient-sensing genes following NSC exposure to aging human serum as well as morphological and gene expression alterations following repeated passaging. Epidemiological analyses on the identified genes showed associations between polymorphisms in SIRT1 and ABTB1 and cognitive performance as well as interactions between SIRT1 genotype and physical activity and between GRB10 genotype and adherence to a Mediterranean diet.
Our study contributes to the understanding of neural stem cell molecular mechanisms underlying human cognitive aging and hints at lifestyle modifiable factors.
Adopting a back-translation strategy using stem cell biology to inform epidemiological analyses, here we show associations between cellular readouts of NSC maintenance and expression levels of nutrient-sensing genes following NSC exposure to aging human serum as well as morphological and gene expression alterations following repeated passaging. Epidemiological analyses on the identified genes showed associations between polymorphisms in SIRT1 and ABTB1 and cognitive performance as well as interactions between SIRT1 genotype and physical activity and between GRB10 genotype and adherence to a Mediterranean diet.
Our study contributes to the understanding of neural stem cell molecular mechanisms underlying human cognitive aging and hints at lifestyle modifiable factors.
Original language | English |
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Article number | 157 |
Pages (from-to) | 1-17 |
Journal | Communications Biology |
Volume | 3 |
Early online date | 2 Apr 2020 |
DOIs | |
Publication status | Published - 2020 |
Keywords
- Insulin
- nsulin-like growth-factor1 signaling
- ISS
- mTOR
- Sirtuin
- GBR10
- ABTB1
- NSC
- Mediterranean diet
- Exercise
- Paired Associates Learning
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Dive into the research topics of 'Lifestyle mediates the role of nutrient-sensing pathways in cognitive aging: cellular and epidemiological evidence'. Together they form a unique fingerprint.Student theses
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Does The Ageing Systemic Milieu Alter Neural Stem Cell Activity? : Cellular And Molecular Evidence From A Human System
Murphy, T. A. (Author), Price, J. (Supervisor) & Thuret, S. (Supervisor), 2016Student thesis: Doctoral Thesis › Doctor of Philosophy
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Investigating Nutrient-Sensing Pathways in Ageing Human Neural Stem Cells and Age-Related Cognitive Decline
De Lucia, C. (Author), Thuret, S. (Supervisor), Dobson, R. (Supervisor), Proitsi, P. (Supervisor) & Maruszak, A. E. (Supervisor), 1 Apr 2019Student thesis: Doctoral Thesis › Doctor of Philosophy
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