Recombinant Human IL-5 Protein，His

Interleukin-5 (IL-5) is a cytokine primarily produced by T-helper type 2 (Th2) cells, playing a pivotal role in the regulation of eosinophil production, differentiation, and activation. Research into recombinant IL-5 was largely motivated by its significance in various eosinophil-associated diseases, including asthma, eosinophilic esophagitis, and hypereosinophilia. Elevated levels of IL-5 have been implicated in the pathophysiology of these disorders, leading to inflammation and tissue damage due to eosinophil overactivation. The development of recombinant IL-5 has facilitated the understanding of its biological functions and enabled the establishment of targeted therapies aimed at inhibiting its action. For instance, monoclonal antibodies targeting IL-5 or its receptor have been developed and are currently used as biologic treatments for severe asthma, demonstrating a marked reduction in exacerbation rates and improved lung function. Additionally, ongoing studies investigate the potential of IL-5 antagonists in treating other allergic and inflammatory conditions. The continued exploration of IL-5 and its pathways not only enhances our understanding of eosinophil biology but also provides a foundation for novel therapeutic strategies aimed at managing conditions driven by Th2 cell-mediated inflammation.