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Life extension factor klotho enhances cognition.

Dena B Dubal1, Jennifer S Yokoyama2, Lei Zhu1

  • 1Gladstone Institute of Neurological Disease, San Francisco, CA 94158, USA; Department of Neurology, University of California, San Francisco, San Francisco, CA 94158, USA.

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Summary
This summary is machine-generated.

The anti-aging factor klotho, particularly a variant called KL-VS, enhances cognition and memory. This suggests klotho may counteract cognitive decline across different life stages, independent of the aging process.

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Area of Science:

  • Neuroscience
  • Genetics
  • Aging Research

Background:

  • Cognitive decline is a major health concern associated with aging.
  • The role of anti-aging factors like klotho in cognitive function remains unclear.

Purpose of the Study:

  • To investigate whether klotho can counteract age-related cognitive decline.
  • To explore the mechanisms underlying klotho's effects on learning and memory.

Main Methods:

  • Analysis of a lifespan-extending human KLOTHO gene variant (KL-VS) in relation to human cognition.
  • Studies in transgenic mice overexpressing klotho, assessing performance in learning and memory tests.
  • Investigation of synaptic plasticity, specifically long-term potentiation and GluN2B N-methyl-D-aspartate receptor subunit enrichment.

Main Results:

  • Heterozygous carriers of the KL-VS variant showed enhanced cognitive function.
  • Mice with systemic klotho overexpression demonstrated improved learning and memory.
  • Klotho elevated long-term potentiation and synaptic GluN2B, which was critical for these cognitive enhancements.
  • Klotho's cognitive benefits were observed in young mice and were independent of age in humans.

Conclusions:

  • Klotho, a key anti-aging protein, significantly enhances cognitive functions, including learning and memory.
  • Augmenting klotho levels or its downstream effects presents a potential therapeutic strategy for cognitive enhancement and mitigating cognitive deficits.
  • The cognitive benefits of klotho appear to be independent of the aging process, suggesting broader applicability across life stages.