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Down syndrome and type I interferon: not so simple.

Louise Malle1, Dusan Bogunovic1

  • 1Center for Inborn Errors of Immunity, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Mindich Child Health and Development Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Precision Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA.

Current Opinion in Immunology
|June 26, 2021
PubMed
Summary
This summary is machine-generated.

Down syndrome (DS) involves intellectual disability and other features, potentially linked to type I interferons (IFN-I). Research explores the role of IFN-I pathway genes on chromosome 21 in DS pathogenesis and therapeutic strategies.

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Area of Science:

  • Genetics
  • Immunology
  • Developmental Biology

Background:

  • Down syndrome (DS) presents with intellectual disability, congenital malformations, and immune dysregulation.
  • The genetic basis for specific DS clinical features remains incompletely understood.
  • Type I interferons (IFN-I) are crucial cytokines involved in antiviral and inflammatory responses.

Purpose of the Study:

  • To review the literature on the role of IFN-I in Down syndrome pathogenesis.
  • To compare and contrast DS with other IFN-mediated human diseases.
  • To identify potential therapeutic targets within the IFN-I pathway for DS.

Main Methods:

  • Literature review of studies on Down syndrome and IFN-I.
  • Comparative analysis of clinical and molecular features of DS and IFN-mediated monogenic diseases.
  • Identification of testable hypotheses for DS mechanisms.

Main Results:

  • Genes IFNAR1 and IFNAR2, encoding the IFN-I receptor subunits on chromosome 21, are implicated in DS pathogenesis.
  • Human monogenic diseases of IFN-I dysregulation share clinical overlap with DS but exhibit distinct features.
  • The IFN-I system represents a significant factor in DS pathophysiology.

Conclusions:

  • The IFN-I pathway is a key area for understanding Down syndrome.
  • IFN-I dysregulation contributes to DS clinical manifestations.
  • Further research into IFN-I in DS may reveal novel therapeutic strategies.