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@ARTICLE{Bayar:280977,
author = {Bayar, Seyhmus and Seep, Lea and Doubková, Karolína and
Zurkovic, Jelena and Bülow, Margret H and Kierdorf, Katrin
and Bauer, Reinhard and Thiele, Christoph and Tavosanis,
Gaia and Hasenauer, Jan and Mass, Elvira},
title = {{D}evelopmental programming by maternal obesity alters
offspring lifespan and immune responses in a diet- and
sex-specific manner.},
journal = {Cells $\&$ development},
volume = {183},
issn = {2667-2901},
address = {Amsterdam},
publisher = {Elsevier},
reportid = {DZNE-2025-01059},
pages = {204040},
year = {2025},
abstract = {Maternal obesity is a growing health concern that
predisposes offspring to metabolic dysfunction, immune
system alterations, and neurodegenerative disorders. To
investigate the intergenerational effects of maternal
obesity, we used Drosophila melanogaster exposed to
high-sugar (HSD) and high-fat diets (HFD) before mating. We
found that maternal diet-induced obesity significantly
altered offspring lifespan, immune responses, and neuronal
health in a sex- and diet-specific manner. Male offspring
were particularly susceptible, exhibiting reduced lifespan,
impaired climbing ability, and increased axonal
degeneration, especially following maternal HFD exposure.
Transcriptomic analyses revealed age-dependent and
diet-specific changes, with males showing pronounced
alterations at 50 days of age. Developmental programming of
hemocytes (blood-like cells) played a crucial role in these
outcomes, as knockdown of key immune pathways such as Relish
and upd3 in hemocytes further influenced lifespan in a
diet-specific manner. These findings highlight the complex
interplay between maternal diet and immune function,
underscoring the impact of maternal obesity-induced
imprinting on immune cells and subsequent long-term health
consequences. Our study provides new insights into conserved
mechanisms linking maternal metabolic health to offspring
outcomes and emphasizes the continued need for animal models
to understand intergenerational health impacts.},
keywords = {Developmental reprogramming (Other) / Drosophila
melanogaster (Other) / Hemocytes (Other) / Lifespan (Other)
/ Macrophages (Other) / Maternal obesity (Other) /
Metabolism (Other) / Neurodegeneration (Other) /
Plasmatocytes (Other)},
cin = {AG Tavosanis},
ddc = {610},
cid = {I:(DE-2719)1013018},
pnm = {351 - Brain Function (POF4-351)},
pid = {G:(DE-HGF)POF4-351},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:40653017},
doi = {10.1016/j.cdev.2025.204040},
url = {https://pub.dzne.de/record/280977},
}