title: Measurement of free light chains with assays based on monoclonal antibodies.
abstract: Recently, serum free light chain (FLC) assays incorporating anti-kappa (κ) and anti-lambda (λ) FLC monoclonal antibodies have become available: N Latex FLC assay (Siemens) and Seralite® (Abingdon Health). The purpose of this review is to provide an overview of these two new monoclonal antibody-based methods. In doing so, the review will outline the performance characteristics of each method, including a summary of: assay principles, antibody specificity, analytical performance and assay performance in disease. Additionally, the review will describe the potential user benefits of adopting these new generation FLC assays, which are designed to overcome the established limitations of existing polyclonal antibody based FLC assays.
authors.forename: Henk
authors.initials: H
authors.lastname: Te Velthuis
authors.forename: Mark
authors.initials: M
authors.lastname: Drayson
authors.forename: John P
authors.initials: JP
authors.lastname: Campbell
mesh_terms: D000686:Amyloidosis / Q000175:diagnosis / Q000276:immunology; D000818:Animals; D000911:Antibodies, Monoclonal / Q000276:immunology*; D006801:Humans; D007118:Immunoassay / Q000379:methods*; D007147:Immunoglobulin Light Chains / Q000032:analysis* / Q000276:immunology; D007145:Immunoglobulin kappa-Chains / Q000097:blood / Q000134:cerebrospinal fluid / Q000652:urine; D007146:Immunoglobulin lambda-Chains / Q000097:blood / Q000134:cerebrospinal fluid / Q000652:urine; D013058:Mass Spectrometry / Q000379:methods; D009101:Multiple Myeloma / Q000175:diagnosis / Q000276:immunology; D010265:Paraproteinemias / Q000175:diagnosis
chemical_list: D000911:Antibodies, Monoclonal; D007147:Immunoglobulin Light Chains; D007145:Immunoglobulin kappa-Chains; D007146:Immunoglobulin lambda-Chains