LEESGGGLVQPGGSMK acetate, a proteolysis peptide, is a component of Infliximab. LEESGGGLVQPGGSMK acetate can be used for quantitative analysis of Infliximab. Infliximab is a chimeric monoclonal IgG1 antibody that specifically binds to TNF-α[1].
The anti-TNF antibodies blocking the action of TNF alpha revolutionized therapy of TNF-related diseases such as Inflammatory Bowel Disease, lupus, ulcerative colitis, ankylosing spondylitis, psoriatic arthritis and rheumatoid arthritis. By neutralizing TNF activity, anti-TNF antibodies promote mucosal healing and induce long-term remissions in vivo. The main anti-TNF antibodies that are currently authorized encompass Infliximab, Etanercept, Adalimumab, Certolizumab and Golimumab[1].
[1]. DorothÉe LEBERT, et al. A method for quantifying therapeutic antibodies. EP3371592A1.