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Katagata, Y. et al.

Katagata, Takeda, Ishizawa, Hozumi, Kondo,

Occurrence and comparison of the expressed keratins in cultured human fibroblasts, endothelial cells and their sarcomas.

We investigated keratin (K) expression in cultured fibroblasts, endothelial cells and their sarcomas by using two-dimensional gel electrophoresis and electron microscopy techniques. Although the fibroblast and endothelial cell lines were derived from mesenchyme, we confirmed Ks in both cell lines. The K in two cultured cell lines consisted of K14 and K16, together with vimentin. In addition to the above Ks, K5 and K8/K17 were comprised in each cell line, respectively. On the other hand, the cultured fibrosarcomas contained K8 and K18 in addition to the Ks present in the cultured fibroblasts, except K17. Moreover, cultured angiosarcomas showed the same Ks expression as those of the cultured fibrosarcomas, except vimentin. However, electron microscopy showed that the extremely thin fiber-like substances existed or at least did not form filamentous structures in four cultured cell types.[1]

References

Occurrence and comparison of the expressed keratins in cultured human fibroblasts, endothelial cells and their sarcomas. Katagata, Y., Takeda, H., Ishizawa, T., Hozumi, Y., Kondo, S. J. Dermatol. Sci. (2002) [Pubmed]

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