At 6 week, the immunohistochemical staining with the mAb was restricted to the FAE, FAESC, CME, DREC and the basal layer of the IFSE and TDIA, also Hassall corpuscle of thymus, marrow, spleen and Harderian gland.

• 6周FAE、FAESC、CME、DREC、IFSE与TDIA的基底膜有阳性细胞。 8周FAE、FAESC、CME、DREC呈阳性。