Summary
Analysis of membrane proteins by Western blotting has revealed both overexpression of proteins of molecular weight 10–200 kD (in particular, of proteins of MW less than 43 kD) and increased glycosylation in a xenografted human small cell undifferentiated prostatic carcinoma, and in two xenografted human bladder tumor cell lines compared with preparations from normal human tissue. Of potential functional significance were: a) a 43 kD protein in the bladder line, UCRU-BL-13, which demonstrated increased synthesis and a marked increase in the degree of glycosylation, and b), a 28 kD ConA-binding protein in prostatic tissue which was absent in normal tissue, present in intermediate quantity in a benign hyperplasia and greatly overexpressed in small cell carcinoma. This study demonstrates the utility of the protein blotting/autoradiography technique for the investigation of tumor membrane proteins.
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Ford, S.A., Russell, P.J., Jelbart, M. et al. Detection of tumor-associated membrane proteins in prostate and bladder carcinomas by means of protein blotting. Urol. Res. 17, 305–310 (1989). https://doi.org/10.1007/BF00262988
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DOI: https://doi.org/10.1007/BF00262988