There is exciting news in how our body fights infection. A new study out of the University of Texas Southwestern Medical Center has identified a new cellular source for an important disease-fighting protein used in the body's earliest response to infection.
The protein is called interferon-gamma. It keeps viruses from replicating and stimulates the immune system to produce other disease-fighting agents. The newly identified cellular source of the proteing is called Neutrophils.
The findings indicate that mammals might posses a second early alert system. So far the study has been centered on mice. But Doctor Felix Yarovinsky, senior author of the study, says he and his team believe the mouse study provides strong evidence that neutrophils, white blood cells created in the bone marrow, produce significant amounts of inteferon-gamma in response to disease.
Innate immunity is the body's first line of defense against pathogens, including those that it's never encountered before. Adaptive immunity is the secondary system that battles pathogens to which the body has previously been exposed and to which it's developed antibodies.
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