PMID- 24499398 OWN - NLM STAT- MEDLINE DCOM- 20150126 LR - 20190911 IS - 1873-5592 (Electronic) IS - 1389-4501 (Linking) VI - 15 IP - 7 DP - 2014 TI - Fused aryl-phenazines: scaffold for the development of bioactive molecules. PG - 681-8 AB - Fused aryl phenazine derivatives (benzo[a]phenazine, pyrido[a]phenazine, benzo[a]phenazine diones, tetrahydropyrido[a]phenazine (dermacozines), etc) are important heterocyclic compounds, which exhibit various pharmacological activities, prominently in cancer cell lines. These compounds significantly intercalate between DNA base pairs and inhibit the activities of topoisomerase I and II enzymes (Topo I and II). XR11576, XR5944, NC-190 and NC-182 belong to phenazine/fused aryl phenazine category and are under clinical studies. Several fused aryl phenazine dione compounds such as pyridazino[4,5-b]phenazine-5,12-diones, 6,11-dihydro-pyrido[2,3-b]phenazine-6,11-diones, 6,11-dihydrobenzo[2,3-b]phenazine-6,11-diones, tetrahydropyrido[a]phenazine, etc possessed anticancer activities on various cancer cell lines. Benzo[a]phenazine diimine and various other fused aryl phenazine compounds form coordination complex with the metal ions (Ru, Rh, Zn and Pt) that intercalate with the DNA and are used for the treatment of cancer. These molecules have influence on MDR cancer cells and serve as anticancer agents in MDR cancer cells. The structure activity relationship of the fused aryl phenazine derivatives revealed that the occurrence of four or more nitrogen atoms in the compounds has better anticancer activity than those molecules with less number of nitrogen atoms. Phenazine antibiotics derived from marine microbes are used for the treatment of microbial and worm diseases. Recent patents on these scaffolds showed that the benzo[a]phenazine derivatives have inhibitory activity on topoisomerase enzymes (Topo I and II) and that act as anticancer agents. FAU - Moorthy, N S Hari Narayana AU - Moorthy NS FAU - Pratheepa, Vijayakumari AU - Pratheepa V FAU - Ramos, Maria J AU - Ramos MJ FAU - Vasconcelos, Vitor AU - Vasconcelos V FAU - Fernandes, Pedro A AU - Fernandes PA AD - REQUIMTE, Departamento de Quimica e Bioquimica, Faculdade de Ciencias, Universidade do Porto, s/n, Rua do Campo Alegre, 4169-007 Porto, Portugal. hari.moorthy@fc.up.pt. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Review PL - United Arab Emirates TA - Curr Drug Targets JT - Current drug targets JID - 100960531 RN - 0 (Intercalating Agents) RN - 0 (Organometallic Compounds) RN - 0 (Phenazines) RN - 0 (Topoisomerase I Inhibitors) RN - 0 (Topoisomerase II Inhibitors) SB - IM MH - Animals MH - Bacteria/metabolism MH - Cell Line, Tumor MH - Cell Survival/drug effects MH - *Drug Design MH - Drug Resistance, Multiple/drug effects MH - Drug Resistance, Neoplasm/drug effects MH - Humans MH - Intercalating Agents/chemistry/isolation & purification/*pharmacology MH - Molecular Structure MH - Organometallic Compounds/chemistry/isolation & purification/*pharmacology MH - Phenazines/chemistry/isolation & purification/*pharmacology MH - Structure-Activity Relationship MH - Topoisomerase I Inhibitors/chemistry/isolation & purification/*pharmacology MH - Topoisomerase II Inhibitors/chemistry/isolation & purification/*pharmacology EDAT- 2014/02/07 06:00 MHDA- 2015/01/27 06:00 CRDT- 2014/02/07 06:00 PHST- 2013/10/29 00:00 [received] PHST- 2014/01/26 00:00 [revised] PHST- 2014/02/04 00:00 [accepted] PHST- 2014/02/07 06:00 [entrez] PHST- 2014/02/07 06:00 [pubmed] PHST- 2015/01/27 06:00 [medline] AID - CDT-EPUB-59046 [pii] AID - 10.2174/1389450115666140205152007 [doi] PST - ppublish SO - Curr Drug Targets. 2014;15(7):681-8. doi: 10.2174/1389450115666140205152007.