Why Your Skin Never Forgets Inflammation, Even Years Later
This study suggests past inflammatory episodes may permanently alter tissue responses to future stressors.
In mice, skin stem cells can hold lifelong "memories" of past inflammation like psoriasis flares. These memories are stored as epigenetic changes. Specific DNA sequences rich in CpG patterns keep the memory accessible through cell divisions. This means once skin has been inflamed, its stem cells stay primed to react faster and stronger to future triggers.
Disclaimer: Research summaries are provided for informational purposes only and do not constitute medical advice. Always consult a qualified healthcare professional before making changes to your health routine.
Related Studies
All researchHow Exercise Quiets a Muscle-Wasting Inflammation Signal in Older Women
Scientists found a specific inflammation signal called CXCL2 that climbs as muscle loss gets worse with age.
A Single Protein's Decline in Immune Cells May Drive Body-Wide Aging
In mice, a protein called Lamtor5 drops with age and lets immune cells called macrophages go into a worn-out, inflammatory state.
Aging Blood Stem Cells May Be a Hidden Source of Chronic Inflammation
In mice, the stem cells that make blood become a driver of the constant, low-level inflammation that comes with age.