Single-Cell RNA Sequencing Redefines Macrophage Heterogeneity and Function in Wound Healing
November 2025
in “
Wound Repair and Regeneration
”
TLDR Single-cell sequencing shows that different types of macrophages have unique roles in wound healing.
This review highlights the transformative role of single-cell sequencing (SCS) in understanding the complexity of skin wound healing, particularly focusing on macrophage heterogeneity and function. SCS reveals that macrophages, crucial for tissue homeostasis, exhibit significant heterogeneity and functional diversity during wound healing. They differentiate into various subtypes, such as CD301b<sup>+</sup> macrophages, monocyte-derived macrophages, and tissue-resident macrophages, each playing distinct roles in the healing process. The review also identifies key marker genes from SCS studies, enhancing our understanding of macrophage roles at the single-cell level in wound healing.