No new information in Greencastle woman's disappearance. No new information in Greencastle woman's disappearanceThere was still no word Tuesday night on the whereabouts of Julie McCutcheon, the Greencastle woman who went missing a week ago while house-sitting for a friend in Gettysburg.
Medical Definition of ANTIGEN. : any substance (as an immunogen or a hapten) foreign to the body that evokes an immune response either alone or after forming a complex with a larger molecule (as a protein) and that is capable of binding with a product (as an antibody or T cell) of the immune response.â anÂ·tiÂ·genÂ·ic \Ëan-ti-Ëje-nik\ adjective.edical Definition of ANTIGEN. : any substance (as an immunogen or a hapten) foreign to the body that evokes an immune response either alone or after forming a complex with a larger molecule (as a protein) and that is capable of binding with a product (as an antibody or T cell) of the immune response.
Endogenous antigen. Definition. noun. Antigen that is produced from within the cell as part of normal cell metabolism or when the cell is infected by bacteria or viruses.Supplement. For instance, when the virus infects the cell, antigens are formed and presented on the surface of the cell.ndogenous antigen. Definition. noun. Antigen that is produced from within the cell as part of normal cell metabolism or when the cell is infected by bacteria or viruses. Supplement.