Early contacts between fibroblasts. An ultrastructural study |
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Authors: | J E Heaysman S M Pegrum |
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Affiliation: | Department of Zoology, University College, London WC1E 6BT, UK |
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Abstract: | Pairs of chick heart fibroblasts have been studied with the light microscope and then fixed in situ for electron microscopy at varying times after they have been seen to make contact with each other. The resultant electron micrographs show that areas of specialisation begin to develop within 20 sec of the contact being made. These specialisations resemble those seen in isolated chick heart fibroblasts where the cell comes close to the substrate and are thought to be areas of adhesion. The development of these areas and their associated microfilaments is described and an attempt is made to correlate this with the stages of the contact inhibition phenomenon. |
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