title: Intravesical chemotherapy: combination with Tween 80 increases cytotoxicity in vitro.
abstract: Tween 80 was shown to enhance significantly the cytotoxic activities of the four drugs (adriamycin, epodyl, mitomycin-c, thiotepa) most frequently administered intravesically to treat superficial bladder cancer. The colony forming ability of a human bladder cancer cell line, RT112, was measured following a 1 h exposure to each of the four drugs both alone and in combination with 0.1% and 0.3% Tween 80. Cell survival was not reduced by 0.1% Tween 80 alone. We conclude that the combination of Tween 80 with these drugs might increase the therapeutic index of intravesical chemotherapy.
mesh_terms: D000283:Administration, Intravesical; D000971:Antineoplastic Combined Chemotherapy Protocols / Q000008:administration & dosage / Q000627:therapeutic use*; D002470:Cell Survival / Q000187:drug effects; D003114:Colony-Forming Units Assay; D004317:Doxorubicin / Q000627:therapeutic use; D005009:Ethoglucid / Q000627:therapeutic use; D006801:Humans; D066298:In Vitro Techniques; D016685:Mitomycin; D008937:Mitomycins / Q000627:therapeutic use; D011136:Polysorbates / Q000627:therapeutic use*; D013852:Thiotepa / Q000627:therapeutic use; D001749:Urinary Bladder Neoplasms / Q000188:drug therapy* / Q000473:pathology
chemical_list: D008937:Mitomycins; D011136:Polysorbates; D005009:Ethoglucid; D016685:Mitomycin; D004317:Doxorubicin; D013852:Thiotepa