PMID- 23370301 OWN - NLM STAT- MEDLINE DCOM- 20130920 LR - 20130329 IS - 1878-1705 (Electronic) IS - 1567-5769 (Linking) VI - 15 IP - 3 DP - 2013 Mar TI - Anti-inflammatory activity of a naphthyridine derivative (7-chloro-6-fluoro-N-(2-hydroxy-3-oxo-1-phenyl-3-(phenylamino)propyl)-4-oxo-1-(prop-2-yn-1-yl)-1,4-dihydro-1,8-naphthyridine-3-carboxamide) possessing in vitro anticancer potential. PG - 606-13 LID - S1567-5769(13)00027-1 [pii] LID - 10.1016/j.intimp.2013.01.011 [doi] AB - We have previously synthesized a series of 1,8-naphthyridine-3-carboxamide derivatives to identify potential anti-cancer/anti-inflammatory compounds. Three derivatives, 7-chloro-N-(3-(cyclopentylamino)-3-oxo-1-phenylpropyl)-6-fluoro-4-oxo-1-(prop-2-yn-1-yl)-1,4-dihydro-1,8-naphthyridine-3-carboxamide (C-22), 7-chloro-N-(2-hydroxy-3-oxo-1-phenyl-3-(phenylamino)propyl)-4-oxo-1-(prop-2-yn-1-yl)-1,4-dihydro-1,8-naphthyridine-3-carboxamide (C-31) and 7-chloro-6-fluoro-N-(2-hydroxy-3-oxo-1-phenyl-3-(phenylamino)propyl)-4-oxo-1-(prop-2-yn-1-yl)-1,4-dihydro-1,8-naphthyridine-3-carboxamide (C-34) demonstrated high cytotoxicity against a number of cancer cell lines and inhibited secretion of IL-1-beta and IL-6. In the present study, C-22, C-31 and C-34 were assessed for modulation of pro-inflammatory cytokines, TNF-alpha and IL-8, chemokine RANTES and NO produced by lipopolysaccharide (LPS)-treated mouse Dendritic cells (DCs). Among the 3 compounds, C-34 showed the most potent inhibition of inflammatory markers in DC model at 0.2 and 2 muM. C-34 also significantly downregulated the secretion of TNF-alpha, IL-1-beta and IL-6 by murine splenocytes and THP-1 cells against LPS induced levels. In vitro effects of C-34 on bone marrow toxicity were assessed in CFU-GM assay. Human CFU-GM population was comparatively more sensitive to C-34 (0.1-10 muM) than murine CFU-GM. IC50 values for murine and human CFU-GM were not attained. C-34 was further examined for in vivo suppression of LPS induced cytokines in a mice model. At doses ranging from 1.25 to 5 mg/kg, C-34 led to significant inhibition of TNF-alpha, IL-1-beta, IL-6 and MIP-1-alpha. At the highest dose of 5 mg/kg, C-34 also protected LPS-treated mice against endotoxin-induced lethality. In conclusion, C-34 demonstrates anti-inflammatory activity in vitro and in vivo in addition to cytotoxic properties. This finding suggests its potential for further development as a synthetic naphthyridine derivative with dual anti-cancer and anti-inflammatory (cytokine inhibition) properties. CI - Copyright (c) 2013 Elsevier B.V. All rights reserved. FAU - Madaan, Alka AU - Madaan A AD - Cell Biology Lab, Dabur Research Foundation, 22, Site IV, Sahibabad, Ghaziabad, Uttar Pradesh-201010, India. alka.madaan@daburresearch.in FAU - Kumar, Vivek AU - Kumar V FAU - Verma, Ritu AU - Verma R FAU - Singh, Anu T AU - Singh AT FAU - Jain, S K AU - Jain SK FAU - Jaggi, Manu AU - Jaggi M LA - eng PT - Journal Article DEP - 20130129 PL - Netherlands TA - Int Immunopharmacol JT - International immunopharmacology JID - 100965259 RN - 0 (7-chloro-6-fluoro-N-(2-hydroxy-3-oxo-1-phenyl-3-(phenylamino)propyl)-4-oxo-1-(prop-2-yn-1-yl)-1,4-dihydro-1,8-naphthyridine-3-carboxamide) RN - 0 (Anti-Inflammatory Agents, Non-Steroidal) RN - 0 (Antineoplastic Agents) RN - 0 (Cytokines) RN - 0 (Inflammation Mediators) RN - 0 (Lipopolysaccharides) RN - 0 (Naphthyridines) SB - IM MH - Animals MH - Anti-Inflammatory Agents, Non-Steroidal/*administration & dosage/chemical synthesis MH - Antineoplastic Agents/*administration & dosage/chemical synthesis MH - Bone Marrow Cells/drug effects/pathology MH - Cell Line MH - Cytokines/genetics/*metabolism MH - Dendritic Cells/*drug effects/immunology MH - Female MH - Hematopoietic Stem Cells/drug effects MH - Humans MH - Inflammation Mediators/metabolism MH - Lipopolysaccharides/immunology MH - Male MH - Mice MH - Mice, Inbred BALB C MH - Mice, Inbred C57BL MH - Naphthyridines/*administration & dosage/chemical synthesis EDAT- 2013/02/02 06:00 MHDA- 2013/09/21 06:00 CRDT- 2013/02/02 06:00 PHST- 2012/10/27 00:00 [received] PHST- 2013/01/14 00:00 [revised] PHST- 2013/01/14 00:00 [accepted] PHST- 2013/02/02 06:00 [entrez] PHST- 2013/02/02 06:00 [pubmed] PHST- 2013/09/21 06:00 [medline] AID - S1567-5769(13)00027-1 [pii] AID - 10.1016/j.intimp.2013.01.011 [doi] PST - ppublish SO - Int Immunopharmacol. 2013 Mar;15(3):606-13. doi: 10.1016/j.intimp.2013.01.011. Epub 2013 Jan 29.