2015
DOI: 10.1002/stem.1950
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Inhibition of miR-15a Promotes BDNF Expression and Rescues Dendritic Maturation Deficits in MeCP2-Deficient Neurons

Abstract: In both the embryonic and adult brain, a critical step in neurogenesis is neuronal maturation. Deficiency of MeCP2 leads to Rett syndrome, a severe neurodevelopmental disorder. We have previously shown that MeCP2 plays critical roles in the maturation step of new neurons during neurogenesis. MeCP2 is known to regulate the expression of brain-derived neurotrophic factor (BDNF), a potent neurotrophic factor for neuronal maturation. Nevertheless, how MeCP2 regulates BDNF expression and how MeCP2 deficiency leads … Show more

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Cited by 54 publications
(48 citation statements)
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References 69 publications
(127 reference statements)
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“…Downregulation of miR132 is linked with increased neuronal tolerance to ischemia [19], while miR134 is involved in memory formation and ischemic injury [20,24]. Moreover, neuronal maturation might be epigenetically controlled by miR15a [21], while miR146 acts as an epigenetic regulator of inflammation [22]. According to Hou et al [23], homeostatic synaptic plasticity is a compensatory mechanism for long-term suppression of the neuronal activity, maintaining the functionality of neuronal networks.…”
Section: Discussionmentioning
confidence: 99%
“…Downregulation of miR132 is linked with increased neuronal tolerance to ischemia [19], while miR134 is involved in memory formation and ischemic injury [20,24]. Moreover, neuronal maturation might be epigenetically controlled by miR15a [21], while miR146 acts as an epigenetic regulator of inflammation [22]. According to Hou et al [23], homeostatic synaptic plasticity is a compensatory mechanism for long-term suppression of the neuronal activity, maintaining the functionality of neuronal networks.…”
Section: Discussionmentioning
confidence: 99%
“…Two miRNAs, miR‐15a and miR‐146b, are also reported to be involved in an interaction with brain‐derived neurotrophic factor (BDNF) [Lohoff et al, ; Gao et al, ]. BDNF is potent in neuronal maturation and is well‐known for its role in the pathological process underlying BPD and other related neuropsychiatric disorders [Post, ].…”
Section: Discussionmentioning
confidence: 99%
“…Upregulation or downregulation of MECP2 dramatically alters the dendritic and axonal architecture of neurons and significantly disrupts the connectivity of neuronal networks (Fukuda et al, 2005; Jugloff et al, 2005; Ballas et al, 2009; Belichenko et al, 2009; Chapleau et al, 2009; Kishi and Macklis, 2010; Cohen et al, 2011; Marshak et al, 2012; Nguyen et al, 2012; Stuss et al, 2012; Jiang et al, 2013a; Baj et al, 2014). Overexpression of BDNF appears to restore the dendritic defects in Mecp2 -null condition suggesting a molecular mechanism regulated by MECP2 to maintain the structural stability of neurons (Zhou et al, 2006; Larimore et al, 2009; Gao et al, 2015). Synaptic plasticity is also regulated by the expression or the phosphorylation of MECP2 (Collins et al, 2004; Dani et al, 2005; Asaka et al, 2006; Moretti et al, 2006; Chao et al, 2007; Zhang et al, 2008; Li et al, 2011; Noutel et al, 2011; Blackman et al, 2012; Na et al, 2012, 2013; Qiu et al, 2012; Zhong et al, 2012; Della Sala and Pizzorusso, 2014; Deng et al, 2014; De Filippis et al, 2015).…”
Section: Specific Syndromic Disorder Related Genesmentioning
confidence: 96%