Icariin and its derivative icariside II extend healthspan via insulin/IGF-1 pathway in C. elegans

Compounds that delay aging might also postpone age-related diseases and extend healthspan in humans. Icariin is a flavonol extracted from several plant species of the Epimedium family. The icariin and its metabolic derivatives have been shown to exert wide protective effects in age-related diseases....

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Veröffentlicht in:PloS one 2011-12, Vol.6 (12), p.e28835-e28835
Hauptverfasser: Cai, Wai-Jiao, Huang, Jian-Hua, Zhang, Su-Qin, Wu, Bin, Kapahi, Pankaj, Zhang, Xin-Min, Shen, Zi-Yin
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Huang, Jian-Hua
Zhang, Su-Qin
Wu, Bin
Kapahi, Pankaj
Zhang, Xin-Min
Shen, Zi-Yin
description Compounds that delay aging might also postpone age-related diseases and extend healthspan in humans. Icariin is a flavonol extracted from several plant species of the Epimedium family. The icariin and its metabolic derivatives have been shown to exert wide protective effects in age-related diseases. However, whether icariin and its derivatives have the potency of delaying aging remains unclear. Here, we report that icariin and its derivative icariside II extend C. elegans lifespan. Using HPLC, we found high level of icariside II in the animals treated with icariin, suggesting icariside II is the bioactive form in vivo of icariin. Icariside II also increased the thermo and oxidative stress tolerance, slowed locomotion decline in late adulthood and delayed the onset of paralysis mediated by polyQ and Aβ(1-42) proteotoxicity. The lifespan extension effect of icariside II is dependent on the insulin/IGF-1 signaling (IIS) since the daf-16(mu86) and daf-2(e1370) failed to show any lifespan extension upon icariside II treatment. Consistently, icariside II treatment upregulates the expression of DAF-16 targets in the wild-type. Moreover, our data suggests that the heat shock transcription factor HSF-1 has a role in icariside II-dependent lifespan extension further implicating the IIS pathway. In conclusion, we demonstrate a novel natural compound, icariside II as the bioactive form of icariin, extends the healthspan via IIS pathway in C. elegans.
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Icariin is a flavonol extracted from several plant species of the Epimedium family. The icariin and its metabolic derivatives have been shown to exert wide protective effects in age-related diseases. However, whether icariin and its derivatives have the potency of delaying aging remains unclear. Here, we report that icariin and its derivative icariside II extend C. elegans lifespan. Using HPLC, we found high level of icariside II in the animals treated with icariin, suggesting icariside II is the bioactive form in vivo of icariin. Icariside II also increased the thermo and oxidative stress tolerance, slowed locomotion decline in late adulthood and delayed the onset of paralysis mediated by polyQ and Aβ(1-42) proteotoxicity. The lifespan extension effect of icariside II is dependent on the insulin/IGF-1 signaling (IIS) since the daf-16(mu86) and daf-2(e1370) failed to show any lifespan extension upon icariside II treatment. Consistently, icariside II treatment upregulates the expression of DAF-16 targets in the wild-type. Moreover, our data suggests that the heat shock transcription factor HSF-1 has a role in icariside II-dependent lifespan extension further implicating the IIS pathway. 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Icariin is a flavonol extracted from several plant species of the Epimedium family. The icariin and its metabolic derivatives have been shown to exert wide protective effects in age-related diseases. However, whether icariin and its derivatives have the potency of delaying aging remains unclear. Here, we report that icariin and its derivative icariside II extend C. elegans lifespan. Using HPLC, we found high level of icariside II in the animals treated with icariin, suggesting icariside II is the bioactive form in vivo of icariin. Icariside II also increased the thermo and oxidative stress tolerance, slowed locomotion decline in late adulthood and delayed the onset of paralysis mediated by polyQ and Aβ(1-42) proteotoxicity. The lifespan extension effect of icariside II is dependent on the insulin/IGF-1 signaling (IIS) since the daf-16(mu86) and daf-2(e1370) failed to show any lifespan extension upon icariside II treatment. Consistently, icariside II treatment upregulates the expression of DAF-16 targets in the wild-type. Moreover, our data suggests that the heat shock transcription factor HSF-1 has a role in icariside II-dependent lifespan extension further implicating the IIS pathway. In conclusion, we demonstrate a novel natural compound, icariside II as the bioactive form of icariin, extends the healthspan via IIS pathway in C. elegans.</abstract><cop>United States</cop><pub>Public Library of Science</pub><pmid>22216122</pmid><doi>10.1371/journal.pone.0028835</doi><tpages>e28835</tpages><oa>free_for_read</oa></addata></record>
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subjects Age
Aging
Aging (natural)
Animals
Biological activity
Biology
Caenorhabditis elegans
Caenorhabditis elegans - metabolism
Caenorhabditis elegans Proteins - metabolism
Chemistry
Chinese medicine
Derivatives
Drosophila
Drug dosages
Epimedium
Flavonoids
Flavonoids - pharmacology
Gene expression
Genetics
Heat shock
Heat shock factors
Heat shock proteins
High performance liquid chromatography
Hospitals
Insects
Insulin
Insulin - metabolism
Insulin-like growth factor I
Insulin-Like Growth Factor I - metabolism
Insulin-like growth factors
Life span
Liquid chromatography
Localization
Locomotion
Longevity
Mammals
Medicine
Mutation
Nematodes
Oxidative stress
Paralysis
Plant extracts
Polyglutamine
Signaling
Transcription factors
Worms
title Icariin and its derivative icariside II extend healthspan via insulin/IGF-1 pathway in C. elegans
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