Cycling basal cells

This refers to basal cells (e.g., in skin, prostate, or airways) that are actively progressing through the cell cycle (in S, G2, or M phase). This label often comes from single-cell RNA sequencing data, indicating a transient state of proliferation. These cells are crucial for tissue turnover and regeneration, as they represent the active stem/progenitor pool that is dividing to produce new differentiated cells.