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.

The Ilyushin Il-4 (DB-3F) (Russian: Ильюшин Ил-4 (ДБ-3Ф); NATO reporting name: Bob) [1] is a Soviet twin-engined long-range bomber and torpedo bomber, widely used by the Soviet Air Force and Soviet Naval Aviation during World War II.

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 ...

IL-4 is an anti-inflammatory cytokine released by activated T lymphocytes, mast cells and granulocytes and inhibiting the release of proinflammatory, which are also pronociceptive cytokines, such as IL-1β, IL-6 and TNFα from macrophages and microglia (Cunha et al., 1999; Lord and Lamb, 1996; Tunon de Lara et al., 1994).

IL-4 has been extensively studied in the context of its role in immunity. Accumulating evidence indicates, however, that it also plays a critical role in higher functions of the normal brain, such as memory and learning. In this review we summarize ...

In this review, recent advances in understanding these three IL-4-related branch points—alternative splicing of IL-4, differential receptor engagement by IL-4, and differential regulation of macrophage activation by IL-4—are summarized in light of …

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.

IL-4 has been called the "prototypic immunoregulatory cytokine." Like many cytokines, it can affect a variety of target cells in multiple ways. IL-4 has an important role in regulating antibody production, hematopoiesis and inflammation, and the development of effector T-cell responses.

Mar 20, 2025 · Interleukin-4 (IL-4) is a key cytokine that regulates immune responses, particularly in allergic inflammation and adaptive immunity. It shapes T-helper cell differentiation, influences antibody production, and modulates signaling pathways.

Jan 1, 2025 · IL-4 secreted by immune cells reduces the levels of inflammatory factors such as IL-1β, TNF-α, IL-6, and iNOS in the joint cavity; ameliorates synovial thickening and joint effusion caused by inflammatory stimulation; and delays joint swelling and pain in arthritis patients.