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J. Anim Sci. 2008. 86:E53-E63. doi:10.2527/jas.2007-0620
© 2008 American Society of Animal Science
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TRIENNIAL GROWTH SYMPOSIUM

Immunological signaling networks: Integrating the body’s immune response1,2

J. D. Lippolis3

Periparturient Diseases of Cattle Research Unit, USDA-ARS, National Animal Disease Center, Ames, IA 50010

3 Corresponding author: john.lippolis{at}ars.usda.gov

The role of the immune system is to protect against infection and to eliminate disease from the host. Nonimmune cells can not only act as physical barriers, but also respond to microbial stimulation to release antimicrobial molecules, whereas immune cells are primarily responsible for eliminating pathogens or cancerous cells. In addition, immune cells regulate the immune response affecting the types of cells that are activated or suppressed. The following discussion is an overview of the immune system and its interconnection with the host. How nonimmune cells and innate and adaptive immune cells work separately and together to respond to a pathogenic challenge is discussed. In addition, how the immune system can be affected by factors such as nutrition and stress, and how the immune system can affect factors such as fertility demonstrates the integration of the immune system in processes other than elimination of pathogens.

Key Words: adaptive • cytokine • immunology • innate • nutrition • Toll-like receptor




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M. Moreto and A. Perez-Bosque
Dietary plasma proteins, the intestinal immune system, and the barrier functions of the intestinal mucosa
J Anim Sci, April 1, 2009; 87(14_suppl): E92 - E100.
[Abstract] [Full Text] [PDF]


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