| Literature DB >> 3857583 |
N Richert, S Akiyama, D Shen, M M Gottesman, I Pastan.
Abstract
Human KB carcinoma cells were selected in sequential steps for resistance to colchicine and found to be cross-resistant to multiple drugs, including vinblastine, adriamycin, and actinomycin D. Compared with the parental line, the multiply resistant cells have decreased amounts of two [35S]methionine-labeled proteins with apparent molecular masses of 75 and 72 kDa. These proteins reappear in a revertant, drug-sensitive cell line. Both proteins are labeled with [14C]glucosamine and are retained on a wheat germ agglutinin-agarose column, indicating that they are glycoproteins. These data suggest that in this human cell line, these two glycoproteins can serve as a marker of the multiple drug-resistance phenotype and may play a role in its etiology.Entities:
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Year: 1985 PMID： 3857583 PMCID： PMC397551 DOI： 10.1073/pnas.82.8.2330
Source DB: PubMed Journal: Proc Natl Acad Sci U S A ISSN： 0027-8424 Impact factor: 11.205