Presentation on theme: "ANTIGEN-ANTIBODY INTERACTION LECTURER: DAVID. OBJECTIVES."— Presentation transcript:
ANTIGEN-ANTIBODY INTERACTION LECTURER: DAVID
INNATE VERSUS ADAPTIVE RESPONSE INNATEADAPTIVE
WHAT IS AN ANTIBODY??
BUT WHAT IS AN ANTIGEN???
ABO BLOOD GROUPS
THERE ARE LOTS OF TYPES OF ANTIBODIES
QUESTION Which immunoglobulin can cross the placenta?
QUESTION If you mix a person with type A blood and anti-A antibodies, will agglutination occur?
QUESTION What is the difference between neutralization and opsonization?
ANSWER Neutralization – antibody binds a toxin and makes it harmless Opsonization – antibody binds an antigen and targets it for phagocytosis
LAB TODAY Today you will be simulating the Ouchterlony test. This test is performed on an agar plate Antigen and antibodies are placed in well and allowed to diffuse. If an interaction occurs between an antibody/antigen, then a white line appears.