The insulin/IGF signaling cascade modulates SUMOylation to regulate aging and proteostasis in Caenorhabditis elegans
- PMID: 30403374
- PMCID: PMC6277199
- DOI: 10.7554/eLife.38635
The insulin/IGF signaling cascade modulates SUMOylation to regulate aging and proteostasis in Caenorhabditis elegans
Abstract
Although aging-regulating pathways were discovered a few decades ago, it is not entirely clear how their activities are orchestrated, to govern lifespan and proteostasis at the organismal level. Here, we utilized the nematode Caenorhabditis elegans to examine whether the alteration of aging, by reducing the activity of the Insulin/IGF signaling (IIS) cascade, affects protein SUMOylation. We found that IIS activity promotes the SUMOylation of the germline protein, CAR-1, thereby shortening lifespan and impairing proteostasis. In contrast, the expression of mutated CAR-1, that cannot be SUMOylated at residue 185, extends lifespan and enhances proteostasis. A mechanistic analysis indicated that CAR-1 mediates its aging-altering functions, at least partially, through the notch-like receptor glp-1. Our findings unveil a novel regulatory axis in which SUMOylation is utilized to integrate the aging-controlling functions of the IIS and of the germline and provide new insights into the roles of SUMOylation in the regulation of organismal aging.
Keywords: C. elegans; SUMOylation; aging; cell biology; germline; insulin/IGF signaling; lifespan; neuroscience; proteostasis.
© 2018, Moll et al.
Conflict of interest statement
LM, NR, MB, HB, FC, YV, TE, AS, DG, AB, BL, HA, TR, YT, EC No competing interests declared
Figures





















Similar articles
-
Modulation of caveolae by insulin/IGF-1 signaling regulates aging of Caenorhabditis elegans.EMBO Rep. 2018 Aug;19(8):e45673. doi: 10.15252/embr.201745673. Epub 2018 Jun 26. EMBO Rep. 2018. PMID: 29945933 Free PMC article.
-
Recent Progress in Regulation of Aging by Insulin/IGF-1 Signaling in Caenorhabditis elegans.Mol Cells. 2022 Nov 30;45(11):763-770. doi: 10.14348/molcells.2022.0097. Epub 2022 Nov 15. Mol Cells. 2022. PMID: 36380728 Free PMC article. Review.
-
Non-cell-autonomous regulation of germline proteostasis by insulin/IGF-1 signaling-induced dietary peptide uptake via PEPT-1.EMBO J. 2024 Nov;43(21):4892-4921. doi: 10.1038/s44318-024-00234-x. Epub 2024 Sep 16. EMBO J. 2024. PMID: 39284915 Free PMC article.
-
Temporal requirements of SKN-1/NRF as a regulator of lifespan and proteostasis in Caenorhabditis elegans.PLoS One. 2021 Jul 1;16(7):e0243522. doi: 10.1371/journal.pone.0243522. eCollection 2021. PLoS One. 2021. PMID: 34197476 Free PMC article.
-
The role of insulin/IGF-1 signaling in the longevity of model invertebrates, C. elegans and D. melanogaster.BMB Rep. 2016 Feb;49(2):81-92. doi: 10.5483/bmbrep.2016.49.2.261. BMB Rep. 2016. PMID: 26698870 Free PMC article. Review.
Cited by
-
Regulation of the proteostasis network by the neuronal system.Front Mol Biosci. 2023 Nov 2;10:1290118. doi: 10.3389/fmolb.2023.1290118. eCollection 2023. Front Mol Biosci. 2023. PMID: 38016061 Free PMC article. Review.
-
SUMOylation at the crossroads of gut health: insights into physiology and pathology.Cell Commun Signal. 2024 Aug 19;22(1):404. doi: 10.1186/s12964-024-01786-5. Cell Commun Signal. 2024. PMID: 39160548 Free PMC article. Review.
-
Protein posttranslational modifications in health and diseases: Functions, regulatory mechanisms, and therapeutic implications.MedComm (2020). 2023 May 2;4(3):e261. doi: 10.1002/mco2.261. eCollection 2023 Jun. MedComm (2020). 2023. PMID: 37143582 Free PMC article. Review.
-
Biomarkers of aging.Sci China Life Sci. 2023 May;66(5):893-1066. doi: 10.1007/s11427-023-2305-0. Epub 2023 Apr 11. Sci China Life Sci. 2023. PMID: 37076725 Free PMC article. Review.
-
A short peptide protects from age-onset proteotoxicity.Aging Cell. 2023 Dec;22(12):e14013. doi: 10.1111/acel.14013. Epub 2023 Oct 27. Aging Cell. 2023. PMID: 37897137 Free PMC article.
References
-
- Alic N, Andrews TD, Giannakou ME, Papatheodorou I, Slack C, Hoddinott MP, Cochemé HM, Schuster EF, Thornton JM, Partridge L. Genome-wide dFOXO targets and topology of the transcriptomic response to stress and insulin signalling. Molecular Systems Biology. 2011;7:502. doi: 10.1038/msb.2011.36. - DOI - PMC - PubMed
-
- Audhya A, Hyndman F, McLeod IX, Maddox AS, Yates JR, Desai A, Oegema K. A complex containing the Sm protein CAR-1 and the RNA helicase CGH-1 is required for embryonic cytokinesis in Caenorhabditis elegans. The Journal of Cell Biology. 2005;171:267–279. doi: 10.1083/jcb.200506124. - DOI - PMC - PubMed
Publication types
MeSH terms
Substances
Grants and funding
LinkOut - more resources
Full Text Sources
Medical
Research Materials