Ultrastructural features of bovine mammary epithelial cells grown on collagen gels |
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Authors: | D D MacKenzie B E Brooker I Forsyth |
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Institution: | National Institute for Research in Dairying, Shinfield, Reading RG2 9AT, Berkshire, U.K. |
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Abstract: | Bovine mammary epithelial cells cultured on floating gels of rat tail collagen showed two principal cell types, columnar and squamous, with ultrastructural features resembling secretory and myoepithelial cells respectively. Cultures of freshly prepared cells released alpha-lactalbumin into the culture medium and in some cases contained fat droplets, although these did not appear to be released. No ultrastructural evidence of casein synthesis was observed. A notable feature was the failure to secrete a continuous basement membrane. Intermediate filaments were present in abundance in squamous epithelial cells. |
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Keywords: | Bovine mammary cells tissue culture ultrastructure α-lactalbumin collagen gels |
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