Natalizumab

Specification

• Cat#: THA-0022
• Product Name: Natalizumab
• Description: Natalizumab is a monoclonal anti-integrin antibody used to treat Crohn's disease or multiple sclerosis.
• Sequences: Heavy chain: QVQLVQSGAEVKKPGASVKVSCKASGFNIKDTYIHWVRQAPGQRLEWMGRIDPANGYTKYDPKFQGRVTITADTSASTAYMELSSLRSEDTAVYYCAREGYYGNYGVYAMDYWGQGTLVTVSSASTKGPSVFPLAPCSRSTSESTAALGCLVKDYFPEPVTVSWNSGALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGTKTYTCNVDHKPSNTKVDKRVESKYGPPCPSCPAPEFLGGPSVFLFPPKPKDTLMISRTPEVTCVVVDVSQEDPEVQFNWYVDGVEVHNAKTKPREEQFNSTYRVVSVLTVLHQDWLNGKEYKCKVSNKGLPSSIEKTISKAKGQPREPQVYTLPPSQEEMTKNQVSLTCLVKGFYPSDIAVEWESNGQPENNYKTTPPVLDSDGSFFLYSRLTVDKSRWQEGNVFSCSVMHEALHNHYTQKSLSLSLGK Light chain: DIQMTQSPSSLSASVGDRVTITCKTSQDINKYMAWYQQTPGKAPRLLIHYTSALQPGIPSRFSGSGSGRDYTFTISSLQPEDIATYYCLQYDNLWTFGQGTKVEIKRTVAAPSVFIFPPSDEQLKSGTASVVCLLNNFYPREAKVQWKVDNALQSGNSQESVTEQDSKDSTYSLSSTLTLSKADYEKHKVYACEVTHQGLSSPVTKSFNRGEC
• Molecular Weight: 149000.0 Da (approximate)
• Introduction: Natalizumab is a recombinant humanized IgG4κ monoclonal antibody that binds to α4-integrin. While natalizumab was originally approved by the FDA to treat multiple sclerosis in 2004, it was withdrawn from the market following multiple reports of fatal progressive multifocal leukoencephalopathy (PML). In 2006, the FDA reintroduced the drug to the market for multiple sclerosis. Natalizumab was further approved by the FDA for the treatment of Crohn's Disease in January 2008. On August 24, 2023, the first biosimilar to natalizumab, natalizumab-sztn, was approved by the FDA. Natalizumab was approved by the European Commission on September 22, 2023.
• Purity: >99% by SDS-Page and HPLC analysis
• Formula: Not Available
• Appearance: Liquid
• Endotoxin Level: < 0.001 EU/μg of the protein by the LAL method

Pharmaceutical Information

• Pharmacodynamics: Natalizumab is a disease-modifying drug that works to alleviate the symptoms of multiple sclerosis and Crohn's disease by attenuating inflammation. A reduction in lesions was observed in patients with multiple sclerosis who received natalizumab. Natalizumab increases the number of circulating leukocytes, including lymphocytes, monocytes, basophils, and eosinophils; this effect is attributed to natalizumab inhibiting their transmigration out of the vascular space. Natalizumab does not affect the absolute count of circulating neutrophils.
• Targets: Integrin alpha-4 Low affinity immunoglobulin gamma Fc region receptor III-B High affinity immunoglobulin gamma Fc receptor I Intercellular adhesion molecule 1