Evidence map›Paper›PMID 20844315›Full record

ArticleAging2010

Klotho interferes with a novel FGF-signalling pathway and insulin/Igf-like signalling to improve longevity and stress resistance in Caenorhabditis elegans.

Marie-Thérèse Château, Caroline Araiz, Simon Descamps, Simon Galas

Open access · hybridAbstract read
In one paragraph

Article in Aging, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 63 papers.

0numbers the graph read from it
0cells of the map it votes in
63citing papers in PubMed
1.9field-weighted citation impact, top 13% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

63 citing papers in PubMed, 103 citations in OpenAlex.

  1. Article
  2. Serum alpha klotho levels in Parkinson's Disease.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2025
    Article
  3. Review
  4. Article
  5. Article
  6. Non-Classical Effects of FGF23: Molecular and Clinical Features.International journal of molecular sciences · 2024
    Review
  7. Article
  8. Article
  9. Review
  10. Article
  11. Article
  12. KL1 Domain of Longevity Factor Klotho Mimics the Metabolome of Cognitive Stimulation and Enhances Cognition in Young and Aging Mice.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2022
    Article
  13. Review
  14. AD-associated CSF biomolecular changes are attenuated in KL-VS heterozygotes.Alzheimer's & dementia (Amsterdam, Netherlands) · 2022
    Article
  15. Article
  16. Article
  17. Article
  18. Stress increases in exopher-mediated neuronal extrusion require lipid biosynthesis, FGF, and EGF RAS/MAPK signaling.Proceedings of the National Academy of Sciences of the United States of America · 2021
    Article
  19. Article
  20. Article

3 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors at 2 institutions in 2 countries.

Marie-Thérèse ChâteauUniversity of Montpellier1, Faculty of Pharmacy and Pharmaceutical Sciences, F-34093 Montpellier Cedex 5, France.
Caroline Araiz
Simon Descamps
Simon Galas
Université de Montpellier · FRCentre National de la Recherche Scientifique · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Klotho exerts anti-aging properties in mammals in two different ways. While membrane-bound Klotho, which is primarily expressed in the kidney, acts as an obligate co-receptor of FGF23 to regulate phosphate homeostasis, secreted Klotho, resulting from the shedding of the KL1-KL2 ectodomain into the bloodstream, inhibits Insulin/IGF1 signalling. However, the underlying molecular mechanisms are not fully understood. Here, we investigated the biological role of Klotho in Caenorhabditis elegans. Two redundant homologues of the klotho gene exist in C. elegans and encode predicted proteins homologous to the  glucosidase-like KL1 domain of mammalian Klotho. We have used a genetic approach to investigate the functional activity of Klotho in C. elegans. Here, we report that whereas Klotho requires EGL-15 (FGFR) and EGL-17 to promote longevity and oxidative stress resistance, it is not involved in the regulation of fluid homeostasis, controlled by LET-756. Besides revealing a new post-developmental role for EGL-17, our data suggest that the KL1 form of Klotho is involved in FGF23-independent FGF signalling. We also report a genetic interaction between Klotho and the DAF-2 (Ins/IGF1R)/DAF-16 (FOXO) pathway. While the regulation of longevity requires functional DAF-2/DAF-16 signalling, the control of oxidative stress resistance involves a DAF-2- independent, DAF-16-dependent pathway, suggesting that Klotho may target either DAF-2 or DAF-16, depending of environmental conditions. Thus, the predictive KL1 form of Klotho appears to crosstalk with both FGF and Insulin/IGF1/FOXO pathways to exert anti-aging properties in C. elegans.

Indexed as

AgingAmino Acid SequenceAnimalsCaenorhabditis elegansCaenorhabditis elegans ProteinsFibroblast Growth FactorsGlucuronidaseInsulinInsulin-Like Growth Factor IIntercellular Signaling Peptides and ProteinsKlotho ProteinsLongevityModels, AnimalMolecular Sequence DataReceptor, InsulinReceptors, Fibroblast Growth FactorCaenorhabditis elegans ProteinsDAF-2 protein, C elegansEGL-15 protein, C elegansEgl-17 protein, C elegansFibroblast Growth FactorsGlucuronidaseInsulinInsulin-Like Growth Factor IIntercellular Signaling Peptides and ProteinsKlotho ProteinsReceptor, InsulinReceptors, Fibroblast Growth Factor

Identifiers

PMID20844315
PMCPMC2984606
OpenAlexW2133646870

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.