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  3. Nod2-related Multisystem Inflammatory Disorders And Recent Advances.
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NOD2-Related Multisystem Inflammatory Disorders and Recent Advances.

Di Wu1, Tomoko Matsuda2, Danielle Xie3

  • 1Department of Rheumatology and Immunology, Peking Union Medical College Hospital, Beijing, China.

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|February 12, 2026

View abstract on PubMed

Summary
This summary is machine-generated.

Nucleotide-binding oligomerization domain-containing protein 2 (NOD2) gene variants are linked to Blau syndrome and Yao syndrome. NOD2 plays a role in innate and adaptive immunity, with specific variants influencing disease phenotypes.

Keywords:
Blau syndromeCrohn’s diseaseDermatitisGenetically transitional diseaseGeneticsNOD2TherapyYao syndrome

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Area of Science:

  • Immunology
  • Genetics
  • Human Diseases

Background:

  • Nucleotide-binding oligomerization domain-containing protein 2 (NOD2) is a key intracellular innate immune sensor.
  • Genetic variants in NOD2 are associated with various human diseases.
  • NOD2's roles in immunity and disease pathogenesis are extensively studied.

Purpose of the Study:

  • To provide a comprehensive review of diseases associated with NOD2 variants.
  • To elucidate the biomedical and immunological roles of NOD2.
  • To discuss the link between NOD2 variants and conditions like Blau syndrome and Yao syndrome.

Main Methods:

  • Review of existing literature on NOD2 variants and associated diseases.
  • Analysis of genetic studies, including case-control and haplotype analyses.
  • Functional studies on NOD2's role in innate and adaptive immune responses.

    • Main Results:

    • NOD2 variants are causative for Blau syndrome and associated with Crohn's disease.
    • Yao syndrome (YAOS) is a novel disease linked to specific NOD2 variants, including those common in Crohn's disease.
    • Functional studies confirm NOD2's involvement in both innate and adaptive immunity, with genotype-phenotype correlations observed.

    Conclusions:

    • Specific NOD2 variants contribute to diverse disease phenotypes, including Blau syndrome, Crohn's disease, and Yao syndrome.
    • Understanding NOD2's dual role in innate and adaptive immunity is crucial for disease management.
    • Further research is needed to explore NOD2's impact on adaptive immunity and its interplay with innate responses.