[The study on ultrastructure of gap junction of rat atrial myocytes in primary culture].
We have studied the ultrastructure of gap junction of rat atrial myocytes of primary culture in situ embedded by ultramicrotomy. We observed a kind of gap junction-associated vesicles (GJAV), a kind of cluster of particles which are surrounded by plasma membrane, and a concatenate GJAV complexes (CGJAVC) in some big clusters. We found that both of GJAV and CGJAVC are very near the plasma membrane at the intercellular space, and at the same time they are usually adjacent the assembled GJ. So we infered that they are the pre-body or midproduct of the assembled GJ probably. This article analysed these observes and probed into the process about how to assemble the gap junction.
Chen
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Department of Biology, Beijing Normal University, China.
Hu
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Zhou
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Wang
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Goings
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D000818:Animals; D002478:Cells, Cultured; D006325:Heart Atria / Q000648:ultrastructure; D007365:Intercellular Junctions / Q000648:ultrastructure*; D008854:Microscopy, Electron; D009206:Myocardium / Q000648:ultrastructure*; D051381:Rats