IL-4 (Human), Recombinant Protein, CHO, Tag Free

Premium CytoGrow™ growth factor suitable for immunology research, allergy and asthma models, inflammation studies, and therapeutic development.

CytoGrow™ Recombinant IL-4 (Human), CHO, Tag Free

Recombinant human interleukin-4 (IL-4) is produced in CHO cells in a tag-free format, ensuring proper folding, glycosylation, and high biological activity. IL-4 is a pleiotropic cytokine critical for immune regulation, particularly in driving Th2 cell differentiation and modulating antibody class switching.
Secreted by activated T cells, mast cells, and basophils, IL-4 promotes B cell proliferation, enhances IgE and IgG1 production, and regulates macrophage activation toward an anti-inflammatory (M2) phenotype. It plays a pivotal role in allergy, asthma, and tissue repair processes. Recombinant human IL-4 is widely used in immunology research, allergy and inflammation studies, and therapeutic development.

Specifications 

Synonym: Interleukin-4; IL-4; B-Cell Stimulatory Factor 1; BSF-1; Binetrakin; Lymphocyte Stimulatory Factor 1; Pitrakinra; IL4
Species:Human
Expression System:Chinese hamster ovary cells (CHO)
Endotoxin:≤10 EU/mg
Appearance:White powder, colorless clear liquid after reconstitution
Formulation Lyophilized from a 0.22 μm filtered solution containing PBS, 5% mannitol, and 0.01% Tween 80
Reconstitution: Recommended to redissolve in sterile deionized water
Shipping:Shipped with ice pack
Storage and Stability:Store in a manual defrost freezer and avoid repeated freeze-thaw cycles.

Lyophilized state:
36 months at -20°C to -80°C

After reconstitution and under sterile conditions:
6 months at -20°C to -80°C
7-10 days at 2°C to 8°C

Resources


Booklet – CytoGrow Growth Factors

Product Data Sheet

Material Safety Data Sheet (MSDS)

Frequently Asked Questions 

Data and Bioactivity

CytoGrow IL-3 Bioactivity
Size

1 μg, 10 µg, 50 μg, 1 mg, 10 mg, 100 mg, 1 g, 1 mL, 10 mL