ALDH1A3 and neoplasm: Interestingly, PyMT tumor cells that were proximal to the C6:LP-NP cluster exhibited elevated Aldh1a3 expression (Figure 2G), whereas there was an enrichment of cells with high Mfge8 expression towards the C7:LP-PI cluster (Figure 2H), suggesting that the post-involution state is associated with increased Mfge8 expression.