Dupilumab

Specification

• Cat#: THA-0085
• Product Name: Dupilumab
• Description: Dupilumab is a monoclonal antibody used to treat moderate to severe atopic dermatitis, asthma, and nasal polyps accompanied by chronic rhinosinusitis in adolescents and adults.
• Sequences: Dupilumab Heavy Chain: EVQLVESGGGLEQPGGSLRLSCAGSGFTFRDYAMTWVRQAPGKGLEWVSSISGSGGNTYYADSVKGRFTISRDNSKNTLYLQMNSLRAEDTAVYYCAKDRLSITIRPRYYGLDVWGQGTTVTVSSASTKGPSVFPLAPCSRSTSESTAALGCLVKDYFPEPVTVSWNSGALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGTKTYTCNVDHKPSNTKVDKRVESKYGPPCPPCPAPEFLGGPSVFLFPPKPKDTLMISRTPEVTCVVVDVSQEDPEVQFNWYVDGVEVHNAKTKPREEQFNSTYRVVSVLTVLHQDWLNGKEYKCKVSNKGLPSSIEKTISKAKGQPREPQVYTLPPSQEEMTKNQVSLTCLVKGFYPSDIAVEWESNGQPENNYKTTPPVLDSDGSFFLYSRLTVDKSRWQEGNVFSCSVMHEALHNHYTQKSLSLSLG Dupilumab Light Chain: DIVMTQSPLSLPVTPGEPASISCRSSQSLLYSIGYNYLDWYLQKSGQSPQLLIYLGSNRASGVPDRFSGSGSGTDFTLKISRVEAEDVGFYYCMQALQTPYTFGQGTKLEIKRTVAAPSVFIFPPSDEQLKSGTASVVCLLNNFYPREAKVQWKVDNALQSGNSQESVTEQDSKDSTYSLSSTLTLSKADYEKHKVYACEVTHQGLSSPVTKSFNRGEC
• Molecular Weight: 146896.9522 Da
• Introduction: Dupilumab is a fully human monoclonal antibody of the immunoglobulin G4 subclass that binds to the interleukin-4 (IL-4) receptor, inhibiting the receptor signaling pathways. As an interleukin-4 receptor alpha antagonist, dupilumab inhibits the signaling of pro-inflammatory cytokines, called interleukins (IL), that induce inflammatory and immunological reactions in several atopic or allergic conditions, such as eczema, allergic reaction, and rhinosinusitis. Dupilumab was generated by recombinant DNA technology in Chinese Hamster Ovary cell suspension culture. Dupilumab is commonly marketed as Dupixent, which is available as a formulation for subcutaneous injection. It was first approved by the FDA in 2017. It is currently used to treat atopic dermatitis, asthma as an add-on maintenance treatment, chronic rhinosinusitis with nasal polyposis, and eosinophilic esophagitis. It is used as monotherapy or in combination with other drugs, such as corticosteroids. Dupilumab is currently under investigations for potential therapeutic use in diseases driven by allergic reactions or type 2 inflammation, such as pediatric atopic dermatitis, and chronic obstructive pulmonary disease. It is also being studied in combination with another antibody that which targets IL-33.
• Purity: >99% by SDS-Page and HPLC analysis
• Formula: C6512H10066N1730O2052S46
• Appearance: Not Available
• Endotoxin Level: < 0.001 EU/μg of the protein by the LAL method

Pharmaceutical Information

• Pharmacodynamics: Dupilumab is an recombinant human IgG4 antibody to the IL-4 receptor that works by inhibiting the activation of certain pro-inflammatory cytokines that are implicated in the pathophysiology of several allergic and atopic conditions, including asthma, chronic rhinosinusitis with nasal polyps, and food and environmental allergies. In vivo, dupilumab was shown to reduce the levels of type 2 inflammatory biomarkers associated with atopic dermatitis, such as thymus and activation-regulated chemokine (TARC/CCL17), total serum IgE, allergen-specific IgE, and lactate dehydrogenase (LDH). A decrease in the levels of biomarkers of asthma, such as FeNO, eotaxin-3, IgE, periostin, and eotaxin-3 (CCL26) was also observed. Since dupilumab works to suppress the immune response, it is proposed that it may influence the immune response against some infections, such as helminth infections, by inhibiting IL-4/IL-13 signaling. It is advised that infections are appropriately treated until resolved before initiating dupilumab therapy. While findings of some in vitro and in vivo studies suggest that some cytokine modulators may influence the expression and activity of specific cytochrome P450 (CYP450) enzymes, an open-label drug-drug interaction study demonstrated that dupilumab displays no significant effect on the activity of CYP450 enzymes studied (CYP3A, CYP2C19, CYP2C9, CYP1A2, and CYP2D6).
• Targets: Interleukin-4 receptor subunit alpha Interleukin-13 Interleukin-4