Researchers report that bacteria releases fatty acid which triggers inflammation that causes acne. Scientist discovered an unrecognized way which bacteria triggers inflammation in the skin. Dr. Richard Gallo, an interim chair of dermatology at the University of California said that it is a mystery why people tolerate all bacteria in their skin, cause usually they walked around at peace with them. He then pointed out that at certain times that passivity breaks down and they get an infection.

In the study, Dr. Gallo's team focused on Propionibacterium acnes, the bacteria obviously contribute to acne as well as other infections. This bacteria lives on the skin undisruptive but when this bacteria caught in circumstances like a surrounded by oil and no air and clogged in pores causes an inflammatory response which is known as acne, via Web MD.

Gallo's team found out that under certain conditions, Propionibacterium acnes releases fatty acids that deter two enzymes in keratinocytes (cells make up the most of the skin's outermost layer) in which boosts the cells' inflammatory reactions. According to Gallo, the findings may help explain the underlying process of acne and Folliculitis (an inflammation of hair follicles which causes pimple-like bumps and other skin symptoms), Patient reports.

An associate professor of dermatology at George Washington University School of Medicine and Health Sciences in Washington, D.C, Dr. Adam Friedman, said that the new study open many doors for the future research and there are already numbers of treatment for acne that do work that somewhere along in the pathway described in the study. They might  target the excess oil in the pores, the skin's inflammatory response or the bacteria itself.

Dr. Friedman added that this study exemplifies how the human body's resident bacteria are not just along for the ride especially the Propionibacterium acnes are not bystanders, this organism can actually change how the immune system works. Now researchers are discovering more about how bacteria can regulate in the human body.