Interleukin-4 is a pleiotropic cytokine produced primarily by activated T lymphocytes, basophils and mast cells.
Multiple immune response-modulating functions are performed by IL-4 on a variety of cell types and it has an important role in the regulator of isotype switching, induction of IgE production in B lymphocytes and differentiation of precursor T helper cells. IL-4 binds to both membrane-bound and secreted soluble IL-4 receptors. Interleukin-4 made in the laboratory is used as a biological response modifier to boost the immune system in cancer therapy.
≥98% (SDS Page)
Lyophilized from a 0.2µm concentrated (1mg/ml) solution in PBS pH 7.4.
<0.1 EU per 1 μg of the protein by the LAL method
Lyophilized protein should be stored at < -20°C, though stable at room temperature for 3 weeks. Reconstituted protein solution can be stored at 2-8 °C for 1 week. Aliquots of reconstituted samples are stable at < -20°C for 3 months.
Interleukin-4 is used as a biological response modifier to boost the immune system in cancer therapy.
1. Binetrakin, Recombinant Human Interleukin 4 (IL4) Origin and development
Binetrakin is a biologic drug that is composed of recombinant human interleukin 4 (IL4) fused to a modified diphtheria toxin. It works by targeting cells that express the IL4 receptor, which include tumor cells, and killing them by inhibiting protein synthesis. IL4, the origin of binetrakin, is a cytokine that is naturally produced by activated T-cells and plays a critical role in regulating the immune response. It is involved in the differentiation of Th2 cells, which are a type of T-cell that secretes cytokines that promote the humoral response, antibody production, and allergic reactions. The development of binetrakin started in the late 1990s, when scientists discovered that IL4 receptors are overexpressed in many types of tumors, including breast cancer, melanoma, and renal cell carcinoma. Researchers hypothesized that targeting IL4 receptors could be a potential strategy for cancer treatment. In preclinical studies, binetrakin demonstrated potent anti-tumor activity in vitro and in vivo, leading to its development as a therapy for cancer. Clinical trials of binetrakin have shown promise in patients with advanced solid tumors, including breast cancer, melanoma, and renal cell carcinoma.
Overall, binetrakin represents an innovative approach to cancer treatment that utilizes a natural cytokine to target tumors and induce cell death. While further clinical studies are needed to establish its safety and efficacy, the development of binetrakin highlights the potential of biologic drugs in treating cancer and other diseases.
2. Binetrakin, Recombinant Human Interleukin 4 (IL4) pathway
Binetrakin is composed of a modified form of diphtheria toxin that is attached to recombinant human interleukin 4 (IL4) through genetic engineering. This drug targets cells that express IL4 receptor, which include tumor cells, and kills them by inhibiting protein synthesis. The IL4 pathway is involved in various biological processes, including immune regulation and inflammation. When IL4 binds to its receptor on the surface of a cell, it triggers a series of downstream signaling events that ultimately regulate gene expression in the cell. IL4 receptor contains two different protein chains, IL4Rα and IL2Rγ chains, which are responsible for IL4 signaling. The binding of IL4 to its receptor leads to the activation of the Janus kinase (JAK)-signal transducer and activator of transcription (STAT) pathway. This pathway ultimately leads to the activation of various transcription factors, which promote the differentiation and activation of immune cells and regulate cytokine expression.
IL4 is primarily produced by activated T-helper 2 (Th2) cells and plays an important role in regulating the immune response. It promotes B-cell differentiation and immunoglobulin class switching, which helps produce antibodies against various pathogens. Additionally, IL4 also activates various immune cells, including eosinophils, mast cells, and basophils, which play critical roles in allergic reactions and immunological defense against parasites. In the context of cancer, IL4 receptor is often over-expressed on the surface of tumor cells and is associated with increased tumor progression, invasion, and metastasis. The use of binetrakin as a treatment for cancer is based on its ability to target tumor cells that express IL4 receptor and induce cell death. By inhibiting protein synthesis in these cancer cells, binetrakin can effectively kill them and prevent tumor growth and metastasis.
3. Binetrakin, Recombinant Human Interleukin 4 (IL4) in the medical field
Binetrakin, also known as DAB(389)IL-4, has shown promising results in preclinical studies for the treatment of various cancers and has been evaluated in clinical trials. In a phase I/II clinical trial, binetrakin showed clinical activity and good tolerability in patients with advanced solid tumors, including pancreatic cancer, melanoma, and renal cell carcinoma. In another clinical trial, binetrakin was evaluated as a treatment for patients with relapsed or refractory hairy cell leukemia. The results showed that about 50% of the patients achieved a complete response, and the drug was well-tolerated. Binetrakin has also been evaluated in combination with other drugs, including Interferon-alpha and Tumor Necrosis Factor(alpha), for the treatment of patients with advanced melanoma. The results showed that the combination therapy significantly improved response rates and overall survival in these patients.
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