PMID- 3474661 OWN - NLM STAT- MEDLINE DCOM- 19870826 LR - 20220330 IS - 0027-8424 (Print) IS - 1091-6490 (Electronic) IS - 0027-8424 (Linking) VI - 84 IP - 15 DP - 1987 Aug TI - Dequalinium, a topical antimicrobial agent, displays anticarcinoma activity based on selective mitochondrial accumulation. PG - 5444-8 AB - Positively charged lipophilic compounds, such as rhodamine 123, localize in mitochondria and are selectively accumulated and retained by carcinoma cells. It has been suggested that this phenotype may be exploited for selective killing of carcinoma cells by lipophilic cations. Here we report that doubly positively charged dequalinium, which has been used for 30 years as an antimicrobial agent in over-the-counter mouthwashes, lozenges, ointments, and paints, exhibits significant anticarcinoma activity. Dequalinium is more effective than seven of eight established anticancer drugs in prolonging the survival of mice with intraperitoneally implanted mouse bladder carcinoma MB49. Dequalinium also inhibits the growth of subcutaneously implanted human colon carcinoma CX-1 in nude mice and recurrent rat colon carcinoma W163 in rats. Lipophilic cationic compounds, such as dequalinium, could comprise a unique class of anticarcinoma agents. FAU - Weiss, M J AU - Weiss MJ FAU - Wong, J R AU - Wong JR FAU - Ha, C S AU - Ha CS FAU - Bleday, R AU - Bleday R FAU - Salem, R R AU - Salem RR FAU - Steele, G D Jr AU - Steele GD Jr FAU - Chen, L B AU - Chen LB LA - eng GR - CA19589/CA/NCI NIH HHS/United States PT - Journal Article PT - Research Support, U.S. Gov't, P.H.S. PL - United States TA - Proc Natl Acad Sci U S A JT - Proceedings of the National Academy of Sciences of the United States of America JID - 7505876 RN - 0 (Antibiotics, Antineoplastic) RN - 0 (Quinolinium Compounds) RN - 0 (Rhodamines) RN - 1N3CZ14C5O (Rhodamine 123) RN - E7QC7V26B8 (Dequalinium) SB - IM MH - Animals MH - Antibiotics, Antineoplastic/*therapeutic use MH - Dequalinium/*therapeutic use MH - Male MH - Mice MH - Mice, Inbred Strains MH - Microscopy, Fluorescence MH - Mitochondria/*metabolism MH - Neoplasm Transplantation MH - Phenotype MH - Quinolinium Compounds/*therapeutic use MH - Rhodamine 123 MH - Rhodamines/metabolism MH - Urinary Bladder Neoplasms/*drug therapy PMC - PMC298874 EDAT- 1987/08/01 00:00 MHDA- 2001/03/28 10:01 PMCR- 1988/02/01 CRDT- 1987/08/01 00:00 PHST- 1987/08/01 00:00 [pubmed] PHST- 2001/03/28 10:01 [medline] PHST- 1987/08/01 00:00 [entrez] PHST- 1988/02/01 00:00 [pmc-release] AID - 10.1073/pnas.84.15.5444 [doi] PST - ppublish SO - Proc Natl Acad Sci U S A. 1987 Aug;84(15):5444-8. doi: 10.1073/pnas.84.15.5444.