title: Sensitizing properties of new N-(2-arylalkyl) propionamides in drug-sensitive and multidrug-resistant tumor cells.
abstract: The propionamides 5 and 6 have been synthesized and tested for stimulation of antitumor drug activity. 5 and 6b increase vincristine cytotoxicity in drug-sensitive murine tumor cells; 5 also increases the toxicity in multidrug resistant cells. Dissimilar trends in sensitive and resistant cells have been observed for the stimulating activity of several propionamides of this family and structurally related verapamil with their molar refractivity, suggesting different size requirements for the sensitizers in sensitive and resistant cells.
authors.affiliation: Instituto de Química Médica, CSIC, Juan de la Cierva, Madrid, Spain.
authors.forename: F
authors.initials: F
authors.lastname: Ros
authors.forename: R
authors.initials: R
authors.lastname: García
authors.forename: M P
authors.initials: MP
authors.lastname: Rivera-Fillat
authors.forename: M A
authors.initials: MA
authors.lastname: González
authors.forename: M R
authors.initials: MR
authors.lastname: Grau-Oliete
mesh_terms: D000577:Amides / Q000138:chemical synthesis* / Q000494:pharmacology; D000818:Animals; D000970:Antineoplastic Agents / Q000494:pharmacology*; D000972:Antineoplastic Agents, Phytogenic / Q000494:pharmacology; D018432:Drug Resistance, Multiple; D019008:Drug Resistance, Neoplasm; D004357:Drug Synergism; D051379:Mice; D013329:Structure-Activity Relationship; D014407:Tumor Cells, Cultured; D014750:Vincristine / Q000494:pharmacology
chemical_list: D000577:Amides; D000970:Antineoplastic Agents; D000972:Antineoplastic Agents, Phytogenic; D014750:Vincristine