Are Statins Causing Rising Rates of Heart Failure? This story has been removed. To find out more about nutrition and natural wellness, try these pages on NaturalNews and NaturalPedia: Nutrition: Superfoods: Nutritional supplements: Resveratrol: Vitamin D: Astaxanthin: Also, have a look at NaturalNews podcasts at:. And see our popular CounterThink cartoons here:.She found just CD8a+ DCs produce a signal that causes additional immune cells to combat the parasite. In the next paper, Brian Edelson, MD, PhD, assistant professor of immunology and pathology, examined the cells against the bacterias Listeria, which can cause food poisoning. He found that CD8a+ DCs could make Listeria infection even worse. ‘Listeria likes to enter immune cells using a pathway that typically leads to the bacteria’s death in garbage disposals inside the cell,’ Murphy clarifies. ‘But that pathway is usually slowed up in CD8a+ DCs to make sure that they can keep section of the invader to display to other immune cells.’ Researchers watched Listeria use this delay to trip CD8a+ DCs as they entered the spleen inside, where immune cells not however activated for attacking invaders are held.