Fig. 3

IHC staining in the close tissue and distant tissue of BS patients. a1 IFN-γ IHC staining of the close lesion tissue of BS patients showed that the positive cells were brown (20x). a2 IFN-γ IHC staining of the distant normal tissue of BS patients showed a small number of positive cells were pale yellow (20x). b1 CXCR3 IHC staining of the close lesion tissue of BS patients showed that the positive cells were brown (20x). b2 CXCR3 IHC staining of the distant normal tissue of BS patients showed a small number of positive cells were pale yellow (20x). c1 CXCL9 IHC staining of the close lesion tissue of BS patients showed that the positive cells were brown (20x). c2 CXCL9 IHC staining of the distant normal tissue of BS patients showed a small number of positive cells were pale yellow (20x). d1 CXCL10 IHC staining of the close lesion tissue of BS patients showed that the positive cells were brown (20x). d2 CXCL10 IHC staining of the distant normal tissue of BS patients showed a small number of positive cells were pale yellow (20x)