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Up, Down, and All Around: Diagnosis and Treatment of Novel STAT3 Variant

Michael Alexander Weinreich1, Tiphanie P Vogel2, V Koneti Rao3

  • 1Laboratory of Allergic Diseases, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH) , Bethesda, MD , USA.

Frontiers in Pediatrics
|March 29, 2017
PubMed

Insights

Monogenic causes of childhood autoimmunity are increasing. Researchers identified a novel STAT3 gain-of-function variant (STAT3 p.G419R) in a patient, supporting pathway-specific treatments for lymphoproliferative disorders.

Area of Science:

  • Immunology
  • Genetics
  • Pediatrics

Background:

  • The genetic basis of childhood-onset autoimmunity, particularly lymphoproliferative disorders, is increasingly understood.
  • Pathogenic genetic variants offer opportunities for targeted, pathway-specific therapeutic strategies.
  • Verification of novel variants is crucial for clinical application.

Observation:

  • A 14-year-old patient presented with symptoms suggestive of a lymphoproliferative disorder.
  • Genetic analysis revealed a previously unidentified variant in the STAT3 gene.

Findings:

  • The novel variant identified is STAT3 p.G419R.
  • Clinical and laboratory data confirm STAT3 p.G419R as a pathogenic gain-of-function variant.
  • This finding expands the spectrum of STAT3-related disorders.

Implications:

  • This discovery aids in diagnosing and potentially treating STAT3-related autoimmune and lymphoproliferative conditions.
  • It highlights the importance of genetic sequencing in pediatric autoimmunity.
  • Further research into STAT3 gain-of-function mechanisms may reveal new therapeutic targets.
Keywords:
STAT3 transcription factorautoimmune lymphoproliferative syndromegain-of-function mutationshuman immunologymonogenic autoimmunity

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