Antibody - Antibody Mediated (Humoral) Immunity (AMI)

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Antibody Mediated (Humoral) Immunity (AMI) On exposure to antigenic determinants in lymphatic organs, B-lymphocytes are activated and  differentiated to form  plasma cells.  Plasma cells are specialized, differentiated cells that synthesize  and secrete antibodies specific for an antigen. Other activated B-lymphocytes form  memory cells.  These cells can be activated later to differentiate to plasma cells for rapid antibody production. This  antibody production will occur on future reentry of the antigen to the body and is the basis of  long- term immunity.   The products of plasma cells are  antibodies.  An antibody is a specialized protein substance  produced by the host cells in response to an antigen in the host's tissues. Antibodies are capable of  reacting specifically with the antigen that provoked their production. Antibodies are often referred to  as  immunoglobulins.  They circulate in the blood and are associated with the gamma globulin 
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This note was uploaded on 11/11/2011 for the course BIO 101 taught by Professor Pesthy during the Fall '07 term at Texas State.

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