Understanding the roles of distinct fibroblast subpopulations in skin homeostasis and disease

The skin’s dermis is not a uniform layer—it contains distinct subtypes of fibroblasts, each with different jobs, and scientists are only beginning to tell them apart. This matters because fibroblasts do more than just hold skin together. They help control inflammation, respond to injury, and can either suppress or fuel the growth of skin cancers. But most studies have treated them as a single cell type, obscuring which subtypes drive disease and which protect the skin. Without that detail, treatments for chronic inflammatory skin conditions or skin cancers remain blunt instruments. This project will use mouse models of skin inflammation and chemically induced carcinogenesis to track how specific fibroblast subpopulations behave during disease. If the researchers can identify which subtypes promote tumour growth and which restrain it, future therapies could target the harmful cells while leaving protective ones intact. This is fundamental science—it will not produce a drug or a diagnostic tomorrow. But understanding the cellular cast of characters in the skin is a necessary step before anyone can write a script to treat chronic wounds, psoriasis, or squamous cell carcinoma with precision.