Adult neural function requires MeCP2 - PubMed (original) (raw)
Adult neural function requires MeCP2
Christopher M McGraw et al. Science. 2011.
Abstract
Rett syndrome (RTT) is a postnatal neurological disorder caused by mutations in MECP2, encoding the epigenetic regulator methyl-CpG-binding protein 2 (MeCP2). The onset of RTT symptoms during early life together with findings suggesting neurodevelopmental abnormalities in RTT and mouse models of RTT raised the question of whether maintaining MeCP2 function exclusively during early life might protect against disease. We show by using an inducible model of RTT that deletion of Mecp2 in adult mice recapitulates the germline knock-out phenotype, underscoring the ongoing role of MeCP2 in adult neurological function. Moreover, unlike the effects of other epigenetic instructions programmed during early life, the effects of early MeCP2 function are lost soon after its deletion. These findings suggest that therapies for RTT must be maintained throughout life.
Figures
Figure 1. Adult deletion of Mecp2 recapitulates germline knock-out
(A–B) MeCP2 is depleted in adult knock-out (AKO) mice by western blot of brain lysates (A, N= 3–4 mice per genotype), and by immunofluorescence in cerebellum (B). Scale bar = 50um. (C) AKO mice display symptoms of disease. N= 6–12 per genotype. (D) AKO mice develop motor and learning impairments similar to germline Mecp2null/y (KO) mice. N=10–26 per genotype. (E) Sst and Grin2a mRNA levels are altered in AKO mice. N = 4–12 per genotype. (F) AKO mice die prematurely (left) similar to KO mice (right). N=10–26 per genotype. Data presented as mean ± s.e.m. (*) p<0.05, (**) p<0.01, or (***) p<0.001.
Similar articles
- Exploring the possible link between MeCP2 and oxidative stress in Rett syndrome.
Filosa S, Pecorelli A, D'Esposito M, Valacchi G, Hajek J. Filosa S, et al. Free Radic Biol Med. 2015 Nov;88(Pt A):81-90. doi: 10.1016/j.freeradbiomed.2015.04.019. Epub 2015 May 8. Free Radic Biol Med. 2015. PMID: 25960047 Review. - Learning and memory and synaptic plasticity are impaired in a mouse model of Rett syndrome.
Moretti P, Levenson JM, Battaglia F, Atkinson R, Teague R, Antalffy B, Armstrong D, Arancio O, Sweatt JD, Zoghbi HY. Moretti P, et al. J Neurosci. 2006 Jan 4;26(1):319-27. doi: 10.1523/JNEUROSCI.2623-05.2006. J Neurosci. 2006. PMID: 16399702 Free PMC article. - Cell-specific expression of wild-type MeCP2 in mouse models of Rett syndrome yields insight about pathogenesis.
Alvarez-Saavedra M, Sáez MA, Kang D, Zoghbi HY, Young JI. Alvarez-Saavedra M, et al. Hum Mol Genet. 2007 Oct 1;16(19):2315-25. doi: 10.1093/hmg/ddm185. Epub 2007 Jul 17. Hum Mol Genet. 2007. PMID: 17635839 - Unconventional transcriptional response to environmental enrichment in a mouse model of Rett syndrome.
Kerr B, Silva PA, Walz K, Young JI. Kerr B, et al. PLoS One. 2010 Jul 12;5(7):e11534. doi: 10.1371/journal.pone.0011534. PLoS One. 2010. PMID: 20634955 Free PMC article. - Rett syndrome: a complex disorder with simple roots.
Lyst MJ, Bird A. Lyst MJ, et al. Nat Rev Genet. 2015 May;16(5):261-75. doi: 10.1038/nrg3897. Epub 2015 Mar 3. Nat Rev Genet. 2015. PMID: 25732612 Review.
Cited by
- Human microglial cells as a therapeutic target in a neurodevelopmental disease model.
Mesci P, LaRock CN, Jeziorski JJ, Nakashima H, Chermont N, Ferrasa A, Herai RH, Ozaki T, Saleh A, Snethlage CE, Sanchez S, Goldberg G, Trujillo CA, Nakashima K, Nizet V, Muotri AR. Mesci P, et al. Stem Cell Reports. 2024 Aug 13;19(8):1074-1091. doi: 10.1016/j.stemcr.2024.06.013. Epub 2024 Jul 25. Stem Cell Reports. 2024. PMID: 39059378 Free PMC article. - Sex Differences in Brain Disorders.
Ziemka-Nalecz M, Pawelec P, Ziabska K, Zalewska T. Ziemka-Nalecz M, et al. Int J Mol Sci. 2023 Sep 26;24(19):14571. doi: 10.3390/ijms241914571. Int J Mol Sci. 2023. PMID: 37834018 Free PMC article. Review. - Selective Deletion of Methyl CpG Binding Protein 2 from Parvalbumin Interneurons in the Auditory Cortex Delays the Onset of Maternal Retrieval in Mice.
Rupert DD, Pagliaro AH, Choe J, Shea SD. Rupert DD, et al. J Neurosci. 2023 Oct 4;43(40):6745-6759. doi: 10.1523/JNEUROSCI.0838-23.2023. Epub 2023 Aug 25. J Neurosci. 2023. PMID: 37625856 Free PMC article. - Advanced genetic therapies for the treatment of Rett syndrome: state of the art and future perspectives.
Palmieri M, Pozzer D, Landsberger N. Palmieri M, et al. Front Neurosci. 2023 May 25;17:1172805. doi: 10.3389/fnins.2023.1172805. eCollection 2023. Front Neurosci. 2023. PMID: 37304036 Free PMC article. Review. - Evidence Synthesis of Gene Therapy and Gene Editing from Different Disorders-Implications for Individuals with Rett Syndrome: A Systematic Review.
Singh J, Goodman-Vincent E, Santosh P. Singh J, et al. Int J Mol Sci. 2023 May 19;24(10):9023. doi: 10.3390/ijms24109023. Int J Mol Sci. 2023. PMID: 37240368 Free PMC article. Review.
References
- Chahrour M, Zoghbi HY. Neuron. 2007;56:422–437. - PubMed
- Guy J, Hendrich B, Holmes M, Martin JE, Bird A. Nat Genet. 2001;27:322–326. - PubMed
- Hayashi S, McMahon AP. Developmental Biology. 2002;244:305–318. - PubMed
Publication types
MeSH terms
Substances
Grants and funding
- F31 NS073317/NS/NINDS NIH HHS/United States
- NS057819/NS/NINDS NIH HHS/United States
- HD024064/HD/NICHD NIH HHS/United States
- R01 NS057819/NS/NINDS NIH HHS/United States
- P30 HD024064/HD/NICHD NIH HHS/United States
- T32 NS043124/NS/NINDS NIH HHS/United States
- T32-NS043124/NS/NINDS NIH HHS/United States
- R01 NS057819-05/NS/NINDS NIH HHS/United States
- P30 HD024064-22/HD/NICHD NIH HHS/United States
- F31-NS073317/NS/NINDS NIH HHS/United States
- HHMI/Howard Hughes Medical Institute/United States
LinkOut - more resources
Full Text Sources
Other Literature Sources
Medical
Molecular Biology Databases