Monoclonal Antibody

A monoclonal antibody is a lab-made protein engineered to recognize and bind to one specific target, usually a molecule on the surface of a cell or in the bloodstream. In cancer care, they are used either to flag tumor cells for destruction, to block growth signals, or to release the brakes on the immune system so it can attack the cancer. They are given by IV infusion or, less often, by injection.

Origin

"Monoclonal" combines the Greek monos (single) and klon (sprout), reflecting that every antibody molecule is an identical copy produced from one parent cell clone. The technology was developed in 1975 by César Milstein and Georges Köhler, who shared the 1984 Nobel Prize for inventing the hybridoma method that made mass production possible.

Significance in Asbestos Context

Monoclonal antibodies are central to modern treatment of pleural mesothelioma and asbestos-related lung cancer. The immune checkpoint inhibitors nivolumab and ipilimumab, both monoclonal antibodies, were approved by the FDA in 2020 as first-line therapy for unresectable pleural mesothelioma, the first new approved regimen in over 15 years. Bevacizumab, which blocks tumor blood vessel growth, is sometimes added to chemotherapy. Knowing whether your treatment plan includes one of these drugs matters both for understanding your prognosis and for documenting the cost and impact of treatment, which can be relevant to damages in a legal claim.

Example Sentence

After her mesothelioma diagnosis, the oncologist recommended a monoclonal antibody combination of nivolumab and ipilimumab rather than traditional chemotherapy.

Related Terms

Immunotherapy, Checkpoint Inhibitor, Nivolumab, Ipilimumab, Bevacizumab, Mesothelioma

Notes

• Ask your oncologist specifically whether checkpoint inhibitor monoclonal antibodies (nivolumab/ipilimumab) are appropriate for your tumor type and stage, and whether biomarker testing (such as PD-L1) is needed before starting.
• Monoclonal antibodies can cause immune-related side effects affecting the thyroid, colon, lungs, liver, and skin; report new symptoms like persistent diarrhea, cough, or fatigue promptly rather than waiting for the next visit.
• Keep copies of all infusion records, drug names, dosing schedules, and billing statements. These document both your medical course and the economic damages in an asbestos claim.
• If you are not at a mesothelioma specialty center, ask about a second opinion; access to the newest monoclonal antibody regimens and clinical trials is often better at high-volume cancer centers.