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Antisense oligonucleotide silencing rescues neurodevelopmental deficits in AMPA receptor gain-of-function mice

Neuron · By Chih-Ming Chen, Yu-Min Huang, Chih-Ching Chung, Richard C. Johnson, Cheng-Ya Tsai, Yu-Han Chen, Han L. Tan, Fu-Yun Hsiao, Richard L. Huganir & Shu-Ling Chiu ·

The Brief

  • Chen et al. report that the recurrent ASD/ID-associated GRIA1-A636T variant disrupts the postnatal restriction of AMPA receptor Ca2+ permeability.
  • In knock-in mice, persistent Ca2+-permeable AMPAR activity leads to synaptic hyperexcitability and hippocampus-biased degeneration.
  • Antisense oligonucleotide silencing rescued neurodevelopmental deficits in these mice.

Why it matters

It shows that antisense silencing can rescue deficits in a mouse model of a GRIA1 variant linked to autism and intellectual disability, which bears on how such disorders might be studied and treated.

Who’s affected

  • neuroscientists studying synaptic physiology
  • researchers on autism and intellectual disability

Chen et al. show that a recurrent ASD/ID-associated GRIA1-A636T variant disrupts the postnatal restriction of AMPAR Ca2+ permeability. In knock-in mice, persistent Ca2+-permeable AMPAR activity leads to synaptic hyperexcitability, hippocampus-biased degeneration, and behavioral…

Timeline

  1. Study by Chen et al. published in Neuron

  2. cell.com

    Antisense oligonucleotide silencing rescues neurodevelopmental deficits in AMPA receptor gain-of-function mice

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    Antisense oligonucleotide silencing rescues neurodevelopmental deficits in AMPA receptor gain-of-function mice – The Morning Science