Articlenpj aging2025
Regulation of stem cell aging and cellular proliferation by Klotho-Sirt1 pathways in heart, kidney and small intestine.
Article in npj aging, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
5 citing papers in PubMed.
- Characterization of Umbilical Cord Mesenchymal Stromal Cells Overexpressing Klotho and In Vitro Anti-Aging Efficacy of Their Derived Extracellular Vesicles.International journal of molecular sciences · 2026Article
- Hyperbranched poly(β-amino ester)s-mediated delivery of engineered Klotho mRNA rescues senescence and restores cellular homeostasis in aged and Klotho deficient iMSCs.Drug delivery and translational research · 2026Article
- Sirtuin 1 as an emerging exerkine in the aging process: unveiling its multifaceted biological roles.Biogerontology · 2026Review
- Antiaging Properties of the Klotho Protein.Cells · 2026Review
- Transdermal delivery of risedronate via spanlastics for osteoporosis: formulation optimization, skin deposition, and pharmacokinetic assessment.Naunyn-Schmiedeberg's archives of pharmacology · 2026Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors.
Funding
Abstract
We investigate the effects of α-Klotho, an anti-aging hormone, on cell proliferation across three tissues with varying regenerative capacities in the context of aging. Using young and old wild-type mice, alongside old heterozygous Klotho-deficient mice, we administered soluble α-Klotho (sKL) daily for 10 weeks to elucidate the impact of α-Klotho deficiency and its supplementation. Our investigation spanned three organs: the small intestine, the kidney, and the heart. We measured cell cycle markers (BrdU, Ki-67, and phospho-histone-3), Sirtuin-1, DNA-damage response pathways (gamma-H2Ax, ATM, CHK2), and the aging phenotypes. Supplementation of sKL significantly enhances proliferative markers and attenuates many aging changes. Mechanistic studies show that sKL acts through the Sirt1-CHK2 pathway to promote cell proliferation. In summary, Klotho deficiency exacerbated aging phenotypes, reduced regenerative capacity, and impaired cellular proliferation. Supplementation with sKL effectively counters these age-related declines across multiple tissues by enhancing cellular proliferation and attenuating aging phenotypes through the Sirt1-CHK2 signaling pathway.
Identifiers
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.