Abstract：
:Aging is a multifactorial process that results in progressive loss of regenerative capacity and tissue function while simultaneously favoring the development of a large array of age-related diseases. Evidence suggests that the accumulation of senescent cells in tissue promotes both normal and pathological aging. Oxic stress is a key driver of cellular senescence. Because symbiotic long-lived reef corals experience daily hyperoxic and hypoxic transitions, we hypothesized that these long-lived animals have developed specific longevity strategies in response to light. We analyzed transcriptome variation in the reef coral Stylophora pistillata during the day-night cycle and revealed a signature of the FoxO longevity pathway. We confirmed this pathway by immunofluorescence using antibodies against coral FoxO to demonstrate its nuclear translocation. Through qPCR analysis of nycthemeral variations of candidate genes under different light regimens, we found that, among genes that were specifically up- or downregulated upon exposure to light, human orthologs of two "light-up" genes (HEY1 and LONF3) exhibited anti-senescence properties in primary human fibroblasts. Therefore, these genes are interesting candidates for counteracting skin aging. We propose a large screen for other light-up genes and an investigation of the biological response of reef corals to light (e.g., metabolic switching) to elucidate these processes and identify effective interventions for promoting healthy aging in humans.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Ottaviani A,Eid R,Zoccola D,Pousse M,Dubal JM,Barajas E,Jamet K,Lebrigand K,Lapébie P,Baudoin C,Giraud-Panis MJ,Rouan A,Beauchef G,Guéré C,Vié K,Barbry P,Tambutté S,Gilson E,Allemand Ddoi
10.1038/s41598-020-76925-2subject
Has Abstractpub_date
2020-11-17 00:00:00pages
19937issue
1issn
2045-2322pii
10.1038/s41598-020-76925-2journal_volume
10pub_type
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