Dietary supplementation of clinically utilized PI3K p110α inhibitor extends the lifespan of male and female mice

Journal article


Hedges, Christopher P., Shetty, Bhoopika, Broome, Sophie C., MacRae, Caitlin, Koutsifeli, Parisa, Buckels, Emma J., MacIndoe, C., Boix, Jordi, Tsiloulis, Thomas, Matthews, Brya G., Sinha, Sanjay, Arendse, Michael, Jaiswal, Jagdish K., Mellor, Kim M., Hickey, Anthony J. R., Shepherd, Peter R. and Merry, Troy L.. (2023). Dietary supplementation of clinically utilized PI3K p110α inhibitor extends the lifespan of male and female mice. Nature Aging. 3(2), pp. 162-172. https://doi.org/10.1038/s43587-022-00349-y
AuthorsHedges, Christopher P., Shetty, Bhoopika, Broome, Sophie C., MacRae, Caitlin, Koutsifeli, Parisa, Buckels, Emma J., MacIndoe, C., Boix, Jordi, Tsiloulis, Thomas, Matthews, Brya G., Sinha, Sanjay, Arendse, Michael, Jaiswal, Jagdish K., Mellor, Kim M., Hickey, Anthony J. R., Shepherd, Peter R. and Merry, Troy L.
Abstract

Diminished insulin and insulin-like growth factor-1 signaling extends the lifespan of invertebrates1,2,3,4; however, whether it is a feasible longevity target in mammals is less clear5,6,7,8,9,10,11,12. Clinically utilized therapeutics that target this pathway, such as small-molecule inhibitors of phosphoinositide 3-kinase p110α (PI3Ki), provide a translatable approach to studying the impact of these pathways on aging. Here, we provide evidence that dietary supplementation with the PI3Ki alpelisib from middle age extends the median and maximal lifespan of mice, an effect that was more pronounced in females. While long-term PI3Ki treatment was well tolerated and led to greater strength and balance, negative impacts on common human aging markers, including reductions in bone mass and mild hyperglycemia, were also evident. These results suggest that while pharmacological suppression of insulin receptor (IR)/insulin-like growth factor receptor (IGFR) targets could represent a promising approach to delaying some aspects of aging, caution should be taken in translation to humans.

Year2023
JournalNature Aging
Journal citation3 (2), pp. 162-172
PublisherNature Publishing Group
ISSN2662-8465
Digital Object Identifier (DOI)https://doi.org/10.1038/s43587-022-00349-y
PubMed ID37118113
Scopus EID2-s2.0-85146666146
Page range162-172
FunderHealth Research Council of New Zealand
Maurice Wilkins Centre
Publisher's version
License
All rights reserved
File Access Level
Controlled
Output statusPublished
Publication dates
Online23 Jan 2023
Publication process dates
Accepted02 Dec 2022
Deposited24 Apr 2025
Grant ID17/099
Additional information

© The Author(s), under exclusive licence to Springer Nature America, Inc. 2023.

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