Recombinant Mouse IL-5 (His Strep) is a cytokine primarily used in immunology research It plays a crucial role in the differentiation and proliferation of eosinophils acting through the IL-5 receptor which triggers downstream signaling pathways that promote these processes This protein originating from mouse cells is often utilized in in vitro studies due to its activity in the nanomolar to low micromolar range enabling researchers to investigate its effects on immune cell function It is commonly applied in studies involving cell models such as culture assays to analyze eosinophil activation and in vivo in animal models to explore its therapeutic potential or role in allergic inflammation Additionally it serves as a valuable tool in drug screening for compounds targeting eosinophil-related pathways Experimental concentrations typically depend on the specific research design allowing flexibility in its application across different experimental setups