Here’s where the most interesting information was gained. Although the genes themselves were turned on, meaning they were transcribed into RNA, some never actually translated; they never formed the final protein product. One of the most critical was the molecule Interleukin 8 (Il-8). This is a major part of the inflammatory response and signals the combat troops of the immune system, neutrophils, to come and take care of business. In essence, the epithelial cells were observing the situation but were not yet ready to act on the concern. Presumably, another signal would have to trigger a real response although this wasn't tested.