Abstract：
:The spatial arrangement of tight junctions in choroid plexus and ciliary body rabbit epithelia has been determined by studying freeze-fracture complementary replicas. In the choroid plexus epithelium, the interruptions of the junctional P-face fibrils were measured to be 14% in their total length. In the ciliary body epithelium, where the fibrils were found to be more fragmented than in the choroid plexus, the P-face fibril interruption accounted for 12% of the total length of the zonulae occludentes sealing the non-pigmented cells and 30% in the focal linear tight junctions connecting the non-pigmented cells at their apices. In both epithelia, the interruptions of the ridges are precisely complemented by particles or short bars of similar length found in the E-face furrows. Consequently, it is possible to conclude that the junctional fibrils are continuous in these two epithelia. For the zonulae occludentes, this continuity appears to be inconsistent with the 'leaky' properties of these epithelia shown by some physiological investigations.
journal_name
Tissue Celljournal_title
Tissue & cellauthors
Hirsch M,Verge D,Bouchaud C,Escaig Jdoi
10.1016/0040-8166(80)90034-8subject
Has Abstractpub_date
1980-01-01 00:00:00pages
437-47issue
3eissn
0040-8166issn
1532-3072pii
0040-8166(80)90034-8journal_volume
12pub_type
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