Antigen

Antigens are substances that trigger the body’s immune system to produce antibodies. Antibodies then attach to the antigens.

Antigens can be proteins, polysaccharides (sugar molecules), or nucleic acids (DNA or RNA). Most antigens are proteins, but polysaccharides and nucleic acids also can act as antigens.

The immune system recognizes antigens as foreign entities that are potentially harmful to the body. Some antigens are harmless, such as pollen, while others can cause disease, such as viruses and bacteria.

Published by AmberLDrake

Dr. Drake is an award-winning author and well-known cancer specialist in her field. She is best known for her extensive research on canine cancer prevention and nutrition, her dedication to help dogs live a long, happy life, and for teaching veterinary medicine. As the CEO of Canine Companions Co., the Founder of Drake Dog Cancer Foundation and Academy, and the Co-Founder of Preferable Pups, in addition to being a respected figure in the dog world, she has earned the respect of thousands of dog lovers worldwide.