Target intelligence / Profile preview

T Helper 2 (Th2) Immune Response and IgG4 Production (Th2/IgG4 Axis)

Target: Th2/IgG4 Axis
Molecular classification: Cytokine Signaling Pathway, Humoral Immunity, Adaptive Immune Response

Overview

The T Helper 2 (Th2) and IgG4 axis represents a complex immunomodulatory pathway where Th2 cells, through the release of signature cytokines like IL-4 and IL-13, drive B cell class switching to produce IgG4 antibodies. This pathway is implicated in diverse physiological and pathological processes, including allergic reactions, immune tolerance, and IgG4-related diseases. Targeting this pathway offers therapeutic opportunities in managing allergic disorders, autoimmune conditions, and potentially certain cancers, but requires careful consideration of potential safety risks related to immune dysregulation.

Other names: Type 2 ImmunityIgG4-mediated Immune ResponseIL-4/IL-13 PathwayHumoral Immunity (Th2-driven)

Mechanism of action

Modulation of Th2 cytokine production and/or B cell class switching to IgG4

Biological functions

Immune responseAntibody productionAllergic responseImmune tolerance

Disease associations

AllergyAsthmaHelminth infectionIgG4-related diseaseAutoimmunity (dysregulation)Cancer (context-dependent)

Safety considerations

Increased risk of infections (immunosuppression)EosinophiliaDevelopment of drug resistancePotential for paradoxical immune activationHypersensitivity reactions

Interacting drugs

IL-4 inhibitors (e.g., dupilumab)

5 more in the full profile.

Biomarkers

Serum IgG4 levelsIL-4 levelsIL-13 levelsEosinophil countIgE levelsTh2 cell frequency in peripheral blood

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