03/03/2026
How Antibodies Work: Targeted Immune Recognition
Antibodies are specialized proteins produced by B lymphocytes that identify and neutralize specific antigens.
Each antibody has unique antigen-binding sites that recognize particular molecular structures on pathogens. Upon binding, antibodies can directly neutralize toxins or viruses by blocking their ability to enter host cells.
They also facilitate opsonization, marking pathogens for phagocytosis by immune cells. Additionally, antibodies can activate the complement system, enhancing pathogen destruction.
Through high specificity and immune memory, antibodies enable precise and efficient adaptive immune responses.
Antibodies function as molecular detectors and effectors within the immune defense system.
