ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSelectivity of action of alkylating agents and drug resistance. 4. Synthesis of tritium-labeled chlorambucil and a study of its cellular uptake by drug-sensitive and drug-resistant strains of the Yoshida ascites sarcoma in vitroBridget T. Hill, Michael Jarman, and Kenneth R. HarrapCite this: J. Med. Chem. 1971, 14, 7, 614–618Publication Date (Print):July 1, 1971Publication History Published online1 May 2002Published inissue 1 July 1971https://pubs.acs.org/doi/10.1021/jm00289a012https://doi.org/10.1021/jm00289a012research-articleACS PublicationsRequest reuse permissionsArticle Views92Altmetric-Citations25LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose Get e-Alerts
Employing a tumourigenic mouse cell line, we have measured the effects of four anti-cancer drugs (methotrexate, vincristine, cis-platinum and adriamycin) upon tumour cell survival as assessed by three independent procedures. The results from two short-term procedures based upon dye exclusion and labeling index determinations were compared with data from the relatively long-term clonogenic or colony-forming assay. The dye exclusion procedure demonstrated the poorest correlation with the clonogenic assay, whereas labeling index measurements exhibited qualitative but not quantitative correspondence with results from the clonogenic assay. These short-term procedures cannot therefore be considered accurate sbustitutes for a clonogenic assay, which remains the method of choice for assessing cytotoxic effects of anti-cancer drugs.