Lupus Arthritis. Lupus arthritis causes pain, stiffness, swelling, tenderness and warmth in your joints. The joints most often affected are the ones farthest from the middle of the body, such as fingers, wrists, elbows, knees, ankles and toes.
Each antibody binds to a specific antigen; an interaction similar to a lock and key. An antibody (Ab), also known as an immunoglobulin (Ig), is a large, Y-shape protein produced by plasma cells that is used by the immune system to identify and neutralize pathogens such as bacteria and viruses.The antibody recognizes a unique molecule of the harmful agent, called an antigen, via the variable region.n antibody (Ab), also known as an immunoglobulin (Ig), is a large, Y-shape protein produced by plasma cells that is used by the immune system to identify and neutralize pathogens such as bacteria and viruses.
Antibodies are proteins produced by specialized immune cells called B lymphocytes. Each B cell produces 1 type of antibody. B cells are so numerous and diverse, that the body can produce a virtually limitless array of antibodies to bind almost anything that we encounter.Antibodies bind to substances and neutralize them, and also help our white blood cells ingest and kill potentially harmful microbes. cells are so numerous and diverse, that the body can produce a virtually limitless array of antibodies to bind almost anything that we encounter. Antibodies bind to substances and neutralize them, and also help our white blood cells ingest and kill potentially harmful microbes.