The interleukin 4 (IL4, IL-4) is a cytokine that induces differentiation of naive helper T cells (T h 0 cells) to T h 2 cells. Upon activation by IL-4, T h 2 cells subsequently produce additional IL-4 in a positive feedback loop.

STAT6 is so vital for the actions of IL-4 that Stat6-deficient mice phenocopy many of the defects observed with Il4- or Il4ra-deficient mice (e.g., related to Th2 differentiation and Ig class switch).

IL-4 plays important roles in a myriad of cellular events, making it difficult to study its effects, particularly in vivo, on any one system. Although this review focuses on its neurological functions, most of what is known about IL4 comes from studies of peripheral immune cells, such as macrophages and lymphocytes.

Mar 30, 2025 · IL4 is considered an important cytokine for tissue repair, counterbalancing the effects of proinflammatory type 1 cytokines, however, it also promotes allergic airway inflammation. Moreover, IL-4, a type 2 cytokine, mediates and regulates a variety of human host responses such as allergic, anti-parasitic, wound healing, and acute inflammation.

Sep 7, 2021 · Interleukin-4 (IL-4) is a four-α-helical bundle type I cytokine with broad pleiotropic actions on multiple lineages. Major actions of IL-4 were initially discovered for B and T cells, but this cytokine acts on more than a dozen different target cells spanning the innate and adaptive immune systems and is produced by multiple different cellular sources.

SNPs in IL4, IL13 and the receptor subunits are reportedly associated with glioma (111, 112). These polymorphisms highlight key features of IL-4/-13 receptor signaling that regulate disease susceptibility and severity, i.e. ligand binding, signaling and its regulation.

Jul 1, 2003 · Acute expression of the IL4 gene by differentiated T H 2 cells is regulated by many positive and negative inducible transcription factors, such as nuclear factor of activated T cells (NFAT ...

IL4 is considered an important cytokine for tissue repair, counterbalancing the effects of proinflammatory type 1 cytokines, however, it also promotes allergic airway inflammation. Moreover, IL-4, a type 2 cytokine, mediates and regulates a variety of human host responses such as allergic, anti-parasitic, wound healing, and acute inflammation.

Mar 6, 2020 · A single Il4/Il13-related gene was found in spotted gar (Lepisosteus oculatus), an example of a bony fish that only went through two rounds of WGD, whereas two Il4/Il13-related genes (Il4/13a...

Abstract Interleukin-4 is a multifunctional cytokine that plays a critical role in the regulation of immune responses. Its effects depend upon binding to and signaling through a receptor complex consisting of the IL-4Rα chain and the common gamma chain (γc), resulting in a series of phosphorylation events mediated by receptor-associated kinases. In turn, these cause the …