Recombinant Mouse IL-4 (carrier-free)

IL-4 is a member of the short four-helix bundle family of cytokines. IL-4 is produced by Th2 cells in response to antigen receptor engagement. Dendritic cells can prime naïve CD4+ T cell; nevertheless, it has been described that DC-mediated priming is insufficient for the development of Th2 cell-dependent immunity. Basophils have been identified as a source or IL-4 in the initial naïve CD4+ T cell priming. These cells coexpress MHC class II and IL-4 message following helminth infection. Therefore, murine basophils could present antigens to naïve T cells, thus promoting Th2 cell differentiation during allergic and anti-parasitic immune responses. In addition, it was previously known that upon cross-linkage of the high affinity receptor for immunoglobulin E, IL-4 is produced by NK cells, mast cells, and basophils. Cells of hematopoietic stem cell origin express the type I receptor for IL-4 (IL-4Ra,gc), and cells of non-hematopoietic stem cell origin express type II receptor (IL-4Ra, IL-13Ra1). Type I receptor complexes are active in regulating Th2 development. In contrast, the type II receptor complex is active in regulating cells that mediate airway hypersensitivity and mucus secretion.

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SPECIFICATIONS

Catalog Number

574308

Size

500 microg

Gene Id

16189,3565

Storage Temp

-20 C or -70 C

Shipping Temp

Blue Ice

Storage Buffer

Unopened vial can be stored at 4C for three months, at -20C for six months, or at -70C for one year. For maximum results, quick spin vial prior to opening. Stock solutions should be prepared at no less than 10 microg/mL in buffer containing carrier protein such as 1% BSA or HSA or 10% FBS. After dilution, the cytokine can be stored at 4C for one month or -20C to -70C for up to three months. Avoid repeated freeze/thaw cycles.

Alternative Names

Interleukin-4, Ia inducing factor (IaIF), B cell stimulating factor-1 (BSF-1), Hodgkin

Regulatory Status

RUO