Abstract:
:mTOR signalling is implicated in the development of disease and in lifespan extension in model organisms. This pathway has been associated with human diseases such as diabetes and cancer, but has not been investigated for its impact on longevity per se. Here, we investigated whether transcriptional variation within the mTOR pathway is associated with human longevity using whole-blood samples from the Leiden Longevity Study. This is a unique cohort of Dutch families with extended survival across generations, decreased morbidity and beneficial metabolic profiles in middle-age. By comparing mRNA levels of nonagenarians and middle-aged controls, the mTOR signalling gene set was found to associate with old age (P = 4.6 × 10(-7)). Single gene analysis showed that seven of 40 mTOR pathway genes had a significant differential expression of at least 5%. Of these, the RPTOR (Raptor) gene was found to be differentially expressed also when the offspring of nonagenarians was compared with their spouses, indicating association with familial longevity in middle-age. This association was not explained by variation between the groups in the prevalence of type 2 diabetes and cancer or glucose levels. Thus, the mTOR pathway not only plays a role in the regulation of disease and aging in animal models, but also in human health and longevity.
journal_name
Aging Celljournal_title
Aging cellauthors
Passtoors WM,Beekman M,Deelen J,van der Breggen R,Maier AB,Guigas B,Derhovanessian E,van Heemst D,de Craen AJ,Gunn DA,Pawelec G,Slagboom PEdoi
10.1111/acel.12015subject
Has Abstractpub_date
2013-02-01 00:00:00pages
24-31issue
1eissn
1474-9718issn
1474-9726journal_volume
12pub_type
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