Researchers at the University of California, Los Angeles (UCLA), using technology developed by Fibrocell Science, have identified two rare adult stem cell-like subpopulations in adult human skin, potentially, potentially providing a source of stem cell-like subpopulations from skin biopsies. The findings, published in BioResearch Open Access, pertain to two subtypes of cells: SSEA3-expressing regeneration-associated (SERA) cells, which may play a role in the regeneration of human skin in response to injury and mesenchymal adult stem cells (MSCs).