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SIRT6/7 Homolog SIR-2.4 Promotes DAF-16 Relocalization and Function during Stress


FoxO transcription factors and sirtuin family deacetylases regulate diverse biological processes, including stress responses and longevity. Here we show that the Caenorhabditis elegans sirtuin SIR-2.4—homolog of mammalian SIRT6 and SIRT7 proteins—promotes DAF-16–dependent transcription and stress-induced DAF-16 nuclear localization. SIR-2.4 is required for resistance to multiple stressors: heat shock, oxidative insult, and proteotoxicity. By contrast, SIR-2.4 is largely dispensable for DAF-16 nuclear localization and function in response to reduced insulin/IGF-1-like signaling. Although acetylation is known to regulate localization and activity of mammalian FoxO proteins, this modification has not been previously described on DAF-16. We find that DAF-16 is hyperacetylated in sir-2.4 mutants. Conversely, DAF-16 is acetylated by the acetyltransferase CBP-1, and DAF-16 is hypoacetylated and constitutively nuclear in response to cbp-1 inhibition. Surprisingly, a SIR-2.4 catalytic mutant efficiently rescues the DAF-16 localization defect in sir-2.4 null animals. Acetylation of DAF-16 by CBP-1 in vitro is inhibited by either wild-type or mutant SIR-2.4, suggesting that SIR-2.4 regulates DAF-16 acetylation indirectly, by preventing CBP-1-mediated acetylation under stress conditions. Taken together, our results identify SIR-2.4 as a critical regulator of DAF-16 specifically in the context of stress responses. Furthermore, they reveal a novel role for acetylation, modulated by the antagonistic activities of CBP-1 and SIR-2.4, in modulating DAF-16 localization and function.


Vyšlo v časopise: SIRT6/7 Homolog SIR-2.4 Promotes DAF-16 Relocalization and Function during Stress. PLoS Genet 8(9): e32767. doi:10.1371/journal.pgen.1002948
Kategorie: Research Article
prolekare.web.journal.doi_sk: https://doi.org/10.1371/journal.pgen.1002948

Souhrn

FoxO transcription factors and sirtuin family deacetylases regulate diverse biological processes, including stress responses and longevity. Here we show that the Caenorhabditis elegans sirtuin SIR-2.4—homolog of mammalian SIRT6 and SIRT7 proteins—promotes DAF-16–dependent transcription and stress-induced DAF-16 nuclear localization. SIR-2.4 is required for resistance to multiple stressors: heat shock, oxidative insult, and proteotoxicity. By contrast, SIR-2.4 is largely dispensable for DAF-16 nuclear localization and function in response to reduced insulin/IGF-1-like signaling. Although acetylation is known to regulate localization and activity of mammalian FoxO proteins, this modification has not been previously described on DAF-16. We find that DAF-16 is hyperacetylated in sir-2.4 mutants. Conversely, DAF-16 is acetylated by the acetyltransferase CBP-1, and DAF-16 is hypoacetylated and constitutively nuclear in response to cbp-1 inhibition. Surprisingly, a SIR-2.4 catalytic mutant efficiently rescues the DAF-16 localization defect in sir-2.4 null animals. Acetylation of DAF-16 by CBP-1 in vitro is inhibited by either wild-type or mutant SIR-2.4, suggesting that SIR-2.4 regulates DAF-16 acetylation indirectly, by preventing CBP-1-mediated acetylation under stress conditions. Taken together, our results identify SIR-2.4 as a critical regulator of DAF-16 specifically in the context of stress responses. Furthermore, they reveal a novel role for acetylation, modulated by the antagonistic activities of CBP-1 and SIR-2.4, in modulating DAF-16 localization and function.


Zdroje

1. ArdenKC (2008) FOXO animal models reveal a variety of diverse roles for FOXO transcription factors. Oncogene 27: 2345–2350.

2. YenK, NarasimhanSD, TissenbaumHA (2011) DAF-16/Forkhead box O transcription factor: many paths to a single Fork(head) in the road. Antioxid Redox Signal 14: 623–634.

3. CalnanDR, BrunetA (2008) The FoxO code. Oncogene 27: 2276–2288.

4. BrunetA, SweeneyLB, SturgillJF, ChuaKF, GreerPL, et al. (2004) Stress-dependent regulation of FOXO transcription factors by the SIRT1 deacetylase. Science 303: 2011–2015.

5. FrescasD, ValentiL, AcciliD (2005) Nuclear trapping of the forkhead transcription factor FoxO1 via Sirt-dependent deacetylation promotes expression of glucogenetic genes. J Biol Chem 280: 20589–20595.

6. van der HorstA, TertoolenLG, de Vries-SmitsLM, FryeRA, MedemaRH, et al. (2004) FOXO4 is acetylated upon peroxide stress and deacetylated by the longevity protein hSir2(SIRT1). J Biol Chem 279: 28873–28879.

7. KitamuraYI, KitamuraT, KruseJP, RaumJC, SteinR, et al. (2005) FoxO1 protects against pancreatic beta cell failure through NeuroD and MafA induction. Cell Metab 2: 153–163.

8. van der HorstA, de Vries-SmitsAM, BrenkmanAB, van TriestMH, van den BroekN, et al. (2006) FOXO4 transcriptional activity is regulated by monoubiquitination and USP7/HAUSP. Nat Cell Biol 8: 1064–1073.

9. LehtinenMK, YuanZ, BoagPR, YangY, VillenJ, et al. (2006) A conserved MST-FOXO signaling pathway mediates oxidative-stress responses and extends life span. Cell 125: 987–1001.

10. EssersMA, WeijzenS, de Vries-SmitsAM, SaarloosI, de RuiterND, et al. (2004) FOXO transcription factor activation by oxidative stress mediated by the small GTPase Ral and JNK. EMBO J 23: 4802–4812.

11. OhSW, MukhopadhyayA, SvrzikapaN, JiangF, DavisRJ, et al. (2005) JNK regulates lifespan in Caenorhabditis elegans by modulating nuclear translocation of forkhead transcription factor/DAF-16. Proc Natl Acad Sci U S A 102: 4494–4499.

12. SunayamaJ, TsurutaF, MasuyamaN, GotohY (2005) JNK antagonizes Akt-mediated survival signals by phosphorylating 14-3-3. J Cell Biol 170: 295–304.

13. FinkelT, DengCX, MostoslavskyR (2009) Recent progress in the biology and physiology of sirtuins. Nature 460: 587–591.

14. SpangeS, WagnerT, HeinzelT, KramerOH (2009) Acetylation of non-histone proteins modulates cellular signalling at multiple levels. Int J Biochem Cell Biol 41: 185–198.

15. FryeRA (2000) Phylogenetic classification of prokaryotic and eukaryotic Sir2-like proteins. Biochem Biophys Res Commun 273: 793–798.

16. RizkiG, IwataTN, LiJ, RiedelCG, PicardCL, et al. (2011) The evolutionarily conserved longevity determinants HCF-1 and SIR-2.1/SIRT1 collaborate to regulate DAF-16/FOXO. PLoS Genet 7: e1002235 doi:10.1371/journal.pgen.1002235.

17. HeidlerT, HartwigK, DanielH, WenzelU (2010) Caenorhabditis elegans lifespan extension caused by treatment with an orally active ROS-generator is dependent on DAF-16 and SIR-2.1. Biogerontology 11: 183–195.

18. PascoMY, CatoireH, ParkerJA, BraisB, RouleauGA, et al. (2010) Cross-talk between canonical Wnt signaling and the sirtuin-FoxO longevity pathway to protect against muscular pathology induced by mutant PABPN1 expression in C. elegans. Neurobiol Dis 38: 425–433.

19. CatoireH, PascoMY, Abu-BakerA, HolbertS, TouretteC, et al. (2008) Sirtuin inhibition protects from the polyalanine muscular dystrophy protein PABPN1. Hum Mol Genet 17: 2108–2117.

20. GreissS, HallJ, AhmedS, GartnerA (2008) C. elegans SIR-2.1 translocation is linked to a proapoptotic pathway parallel to cep-1/p53 during DNA damage-induced apoptosis. Genes Dev 22: 2831–2842.

21. WangY, OhSW, DeplanckeB, LuoJ, WalhoutAJ, et al. (2006) C. elegans 14-3-3 proteins regulate life span and interact with SIR-2.1 and DAF-16/FOXO. Mech Ageing Dev 127: 741–747.

22. ViswanathanM, KimSK, BerdichevskyA, GuarenteL (2005) A role for SIR-2.1 regulation of ER stress response genes in determining C. elegans life span. Dev Cell 9: 605–615.

23. ParkerJA, ArangoM, AbderrahmaneS, LambertE, TouretteC, et al. (2005) Resveratrol rescues mutant polyglutamine cytotoxicity in nematode and mammalian neurons. Nat Genet 37: 349–350.

24. MairW, PanowskiSH, ShawRJ, DillinA (2009) Optimizing dietary restriction for genetic epistasis analysis and gene discovery in C. elegans. PLoS ONE 4: e4535 doi:10.1371/journal.pone.0004535.

25. TissenbaumHA, GuarenteL (2001) Increased dosage of a sir-2 gene extends lifespan in Caenorhabditis elegans. Nature 410: 227–230.

26. BerdichevskyA, ViswanathanM, HorvitzHR, GuarenteL (2006) C. elegans SIR-2.1 Interacts with 14-3-3 Proteins to Activate DAF-16 and Extend Life Span. Cell 125: 1165–1177.

27. ViswanathanM, GuarenteL (2011) Regulation of Caenorhabditis elegans lifespan by sir-2.1 transgenes. Nature 477: E1–2.

28. BurnettC, ValentiniS, CabreiroF, GossM, SomogyvariM, et al. (2011) Absence of effects of Sir2 overexpression on lifespan in C. elegans and Drosophila. Nature 477: 482–485.

29. LombardDB, PletcherSD, CantoC, AuwerxJ (2011) Ageing: longevity hits a roadblock. Nature 477: 410–411.

30. DaitokuH, HattaM, MatsuzakiH, ArataniS, OhshimaT, et al. (2004) Silent information regulator 2 potentiates Foxo1-mediated transcription through its deacetylase activity. Proc Natl Acad Sci U S A 101: 10042–10047.

31. MottaMC, DivechaN, LemieuxM, KamelC, ChenD, et al. (2004) Mammalian SIRT1 represses forkhead transcription factors. Cell 116: 551–563.

32. JingE, GestaS, KahnCR (2007) SIRT2 regulates adipocyte differentiation through FoxO1 acetylation/deacetylation. Cell Metab 6: 105–114.

33. WangF, TongQ (2009) SIRT2 suppresses adipocyte differentiation by deacetylating FOXO1 and enhancing FOXO1's repressive interaction with PPARgamma. Mol Biol Cell 20: 801–808.

34. WangF, NguyenM, QinFX, TongQ (2007) SIRT2 deacetylates FOXO3a in response to oxidative stress and caloric restriction. Aging Cell 6: 505–14.

35. MatsuzakiH, DaitokuH, HattaM, AoyamaH, YoshimochiK, et al. (2005) Acetylation of Foxo1 alters its DNA-binding ability and sensitivity to phosphorylation. Proc Natl Acad Sci U S A 102: 11278–11283.

36. JacobsKM, PenningtonJD, BishtKS, Aykin-BurnsN, KimHS, et al. (2008) SIRT3 interacts with the daf-16 homolog FOXO3a in the mitochondria, as well as increases FOXO3a dependent gene expression. Int J Biol Sci 4: 291–299.

37. SundaresanNR, GuptaM, KimG, RajamohanSB, IsbatanA, et al. (2009) Sirt3 blocks the cardiac hypertrophic response by augmenting Foxo3a-dependent antioxidant defense mechanisms in mice. J Clin Invest 119: 2758–2771.

38. VakhrushevaO, BraeuerD, LiuZ, BraunT, BoberE (2008) Sirt7-dependent inhibition of cell growth and proliferation might be instrumental to mediate tissue integrity during aging. J Physiol Pharmacol 59 Suppl 9: 201–212.

39. MostoslavskyR, ChuaKF, LombardDB, PangWW, FischerMR, et al. (2006) Genomic instability and aging-like phenotype in the absence of mammalian SIRT6. Cell 124: 315–329.

40. LeeSS, KennedyS, TolonenAC, RuvkunG (2003) DAF-16 target genes that control C. elegans life-span and metabolism. Science 300: 644–647.

41. McElweeJ, BubbK, ThomasJH (2003) Transcriptional outputs of the Caenorhabditis elegans forkhead protein DAF-16. Aging Cell 2: 111–121.

42. MurphyCT, McCarrollSA, BargmannCI, FraserA, KamathRS, et al. (2003) Genes that act downstream of DAF-16 to influence the lifespan of Caenorhabditis elegans. Nature 424: 277–283.

43. MukhopadhyayA, OhSW, TissenbaumHA (2006) Worming pathways to and from DAF-16/FOXO. Exp Gerontol 41: 928–934.

44. HsuAL, MurphyCT, KenyonC (2003) Regulation of aging and age-related disease by DAF-16 and heat-shock factor. Science 300: 1142–1145.

45. MorleyJF, BrignullHR, WeyersJJ, MorimotoRI (2002) The threshold for polyglutamine-expansion protein aggregation and cellular toxicity is dynamic and influenced by aging in Caenorhabditis elegans. Proc Natl Acad Sci U S A 99: 10417–10422.

46. NasrinN, OggS, CahillCM, BiggsW, NuiS, et al. (2000) DAF-16 recruits the CREB-binding protein coactivator complex to the insulin-like growth factor binding protein 1 promoter in HepG2 cells. Proc Natl Acad Sci U S A 97: 10412–10417.

47. FinninMS, DonigianJR, PavletichNP (2001) Structure of the histone deacetylase SIRT2. Nat Struct Biol 8: 621–625.

48. SenfSM, SandesaraPB, ReedSA, JudgeAR (2011) p300 Acetyltransferase activity differentially regulates the localization and activity of the FOXO homologues in skeletal muscle. Am J Physiol Cell Physiol 300: C1490–1501.

49. ZhangM, PoplawskiM, YenK, ChengH, BlossE, et al. (2009) Role of CBP and SATB-1 in aging, dietary restriction, and insulin-like signaling. PLoS Biol 7: e1000245 doi:10.1371/journal.pbio.1000245.

50. EastburnDJ, HanM (2005) A gain-of-function allele of cbp-1, the Caenorhabditis elegans ortholog of the mammalian CBP/p300 gene, causes an increase in histone acetyltransferase activity and antagonism of activated Ras. Mol Cell Biol 25: 9427–9434.

51. Hunt-NewburyR, ViveirosR, JohnsenR, MahA, AnastasD, et al. (2007) Highx-throughput in vivo analysis of gene expression in Caenorhabditis elegans. PLoS Biol 5: e237 doi:10.1371/journal.pbio.0050237.

52. McKaySJ, JohnsenR, KhattraJ, AsanoJ, BaillieDL, et al. (2003) Gene expression profiling of cells, tissues, and developmental stages of the nematode C. elegans. Cold Spring Harb Symp Quant Biol 68: 159–169.

53. KoSI, LeeIS, KimJY, KimSM, KimDW, et al. (2006) Regulation of histone acetyltransferase activity of p300 and PCAF by proto-oncogene protein DEK. FEBS Lett 580: 3217–3222.

54. QiangL, BanksAS, AcciliD (2010) Uncoupling of acetylation from phosphorylation regulates FoxO1 function independent of its subcellular localization. J Biol Chem 285: 27396–27401.

55. BrentMM, AnandR, MarmorsteinR (2008) Structural basis for DNA recognition by FoxO1 and its regulation by posttranslational modification. Structure 16: 1407–1416.

56. WangF, ChanCH, ChenK, GuanX, LinHK, et al. (2012) Deacetylation of FOXO3 by SIRT1 or SIRT2 leads to Skp2-mediated FOXO3 ubiquitination and degradation. Oncogene 31: 1546–1557.

57. PfisterJA, MaC, MorrisonBE, D'MelloSR (2008) Opposing effects of sirtuins on neuronal survival: SIRT1-mediated neuroprotection is independent of its deacetylase activity. PLoS ONE 3: e4090 doi:10.1371/journal.pone.0004090.

58. PanPW, FeldmanJL, DevriesMK, DongA, EdwardsAM, et al. (2011) Structure and biochemical functions of SIRT6. J Biol Chem 286: 14575–14587.

59. BrennerS (1974) The genetics of Caenorhabditis elegans. Genetics 77: 71–94.

60. MelloCC, KramerJM, StinchcombD, AmbrosV (1991) Efficient gene transfer in C.elegans: extrachromosomal maintenance and integration of transforming sequences. EMBO J 10: 3959–3970.

61. ApfeldJ, KenyonC (1999) Regulation of lifespan by sensory perception in Caenorhabditis elegans. Nature 402: 804–809.

62. KenyonC, ChangJ, GenschE, RudnerA, TabtiangR (1993) A C. elegans mutant that lives twice as long as wild type. Nature 366: 461–464.

63. AhnBH, KimHS, SongS, LeeIH, LiuJ, et al. (2008) A role for the mitochondrial deacetylase Sirt3 in regulating energy homeostasis. Proc Natl Acad Sci U S A 105: 14447–14452.

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