Figure 1. CD68+ Mφs, CD204+ Mφs, and CD169+ Mφs were enriched in the stromal regions of UCB tissues (n = 302).

A. Anti-α-SMA staining was used to distinguish intratumoral (INT) from stromal (ST) regions. B. Representative immunohistochemistry images of CD68⁺ Mφs, CD204⁺ Mφs, and CD169⁺ Mφs in human UCB tissues. The micrographs at higher magnification show stained INT (1) and ST (2) regions. Scale bar, 100 μm. C. The numbers of CD68⁺ Mφs, CD204⁺ Mφs, and CD169⁺ Mφs in the INT and ST regions of human UCB tissues. Cell numbers were calculated as the cell count per × 400 field. Data are expressed as means ± SEM.