Figure 3

Depression of the THOC5 gene causes apoptosis of bone marrow cells and reduction of the B cell population in spleen. Rosa26-Cre ER^T2:THOC5 (flox/flox) (n = 17) and control Rosa26-Cre ER^T2 (n = 14) mice were injected with or without tamoxifen. Injection was performed i. p. 2 times at 2-day intervals. (A) Bone marrow cells were spun down onto glass slides and were then stained with May-Grünwald and Haematoxylin (May-Grünwald). We show one example of representative data. Bars represent 10 μm. (B, C) Spleen weight was shown as mg/20 g body weight (B), haematoxylin positive cells were counted from 1 mg spleen (C). Mean values from mice treated with tamoxifen: Rosa26-Cre ER^T2:THOC5 (flox/flox) (n = 10) and control Rosa26-Cre ER^T2 (n = 8) or without tamoxifen Rosa26-Cre ER^T2:THOC5 (flox/flox) (n = 7) and control Rosa26-Cre ER^T2 (n = 6) are shown. The error bars represent standard deviation. (D) Rosa26-Cre ER^T2:THOC5 (flox/flox) mice were treated with (+) or without (−) tamoxifen and six days after the first tamoxifen injection mouse spleens were fixed in formalin. Paraffin sections were stained by Haematoxylin and eosin (HE) or were supplied for immunohistochemical staining using CD3, PAX5 and Ki67 specific antibodies. Bars represent 800 μm (HE) or 40 μm (immunohistochemical staining).