: a person who opposes a person or group in authority. He was a rebel against the school administration. [+] more examples [-] hide examples [+] Example sentences [-] Hide examples. : a person who does not obey rules or accept normal standards of behavior, dress, etc. He is a typical teenage rebel.
antibody-antigen complex. a complex formed by the combining of antibody and antigen. Called also immune complex. Golgi complex. a complex cellular organelle involved in the synthesis of glycoproteins, lipoproteins, membrane-bound proteins and lysosomal enzymes. See also golgi apparatus.
Antibodies are proteins produced by the immune system that bind to a target antigen on the cell surface. The immune system normally uses them to fight pathogens. Each antibody is specific to one or a few proteins. Those that bind to tumor antigens treat cancer. Cell surface receptors are common targets for antibody therapies and include CD20, CD274 and CD279.