Figure 5

(a) Images of H.E. and immunohistochemical staining of HDAC1 and HDAC6 in normal nasal mucosal tissues and those from patients with sinusitis and polyps. Bar: 50 μm. (b) Western blotting for p63, claudin-1, -4, -7, OCLN, TRIC, LSR, CK5 and CK7 and (c) TEER values representing barrier function in hTERT-HNECs treated with 1 or 10 μM TSA.