Figure 5.

Proliferating cell populations in mediastinal fat-associated lymphoid clusters (LCs) (MFALCs) and lungs of Bleomycin (BLM)-induced pneumonitis mouse model. Immunohistochemical images show BrdU⁺ cell in MFALCs (A–D) and lung tissues (F–I) of phosphate-buffered saline (PBS) group at 7 days, BLM group at 7 days, PBS group at 21 days, and BLM group at 21 days, respectively. (E) Density of BrdU⁺ cells in MFALCs. (J) Average number of BrdU⁺ cells in lung tissues of different groups. The letters a, b, c, and d: significant differences between PBS group at 7 days (a), BLM group at 7 days (b), PBS group at 21 days (c), and BLM group at 21 days (d), analyzed by the Kruskal–Wallis test, followed by the Scheffé’s method (P < 0.05); n = 5 in each experimental group. Values = mean ± SE.