Octahedral ruthenium (II) polypyridyl complexes as antimicrobial agents against mycobacterium

Tuberculosis is one of the world’s deadliest infectious disease with 1.5 millions deaths annually. It is imperative to discover novel compounds with potent activity against M. tuberculosis. In this study, susceptibilities of M. smegmatis to the octahedral ruthenium(II) polypyridyl complexes, 1 {[(bp...

Full description

Bibliographic Details
Main Authors: Guojian Liao, Zhengyuan Ye, Yunlu Liu, Bin Fu, Chen Fu
Format: Article
Language:English
Published: PeerJ Inc. 2017-04-01
Series:PeerJ
Subjects:
Online Access:https://peerj.com/articles/3252.pdf
_version_ 1827607103497306112
author Guojian Liao
Zhengyuan Ye
Yunlu Liu
Bin Fu
Chen Fu
author_facet Guojian Liao
Zhengyuan Ye
Yunlu Liu
Bin Fu
Chen Fu
author_sort Guojian Liao
collection DOAJ
description Tuberculosis is one of the world’s deadliest infectious disease with 1.5 millions deaths annually. It is imperative to discover novel compounds with potent activity against M. tuberculosis. In this study, susceptibilities of M. smegmatis to the octahedral ruthenium(II) polypyridyl complexes, 1 {[(bpy)3Ru] (PF6)2 (bpy = 2,2′-bipyridine)}, 2 {[(phen)2Ru(dppz)](PF6)2 (phen = 1,10-phenanthroline, dppz = dipyridophenazine)} and 3 {[(phen)3Ru](PF6)2} were measured by broth microdilution and reported as the MIC values. Toxicities of complex 3 to LO2 and hepG2 cell lines were also measured. Complex 2 inhibited the growth of M. smegmatis with MIC value of 2 µg/mL, while complex 3 was bactericidal with MIC value of 26 µg/mL. Furthermore, the bactericidal activity of complex 3 was dependent on reactive oxygen species production. Complex 3 showed no cytotoxicity against LO2 and hepG2 cell lines at concentration as high as 64 µg/mL, paving the way for further optimization and development as a novel antibacterial agent for the treatment of M. tuberculosis infection.
first_indexed 2024-03-09T06:49:44Z
format Article
id doaj.art-ec0f79fcb0464a68bd58b651492699f5
institution Directory Open Access Journal
issn 2167-8359
language English
last_indexed 2024-03-09T06:49:44Z
publishDate 2017-04-01
publisher PeerJ Inc.
record_format Article
series PeerJ
spelling doaj.art-ec0f79fcb0464a68bd58b651492699f52023-12-03T10:29:37ZengPeerJ Inc.PeerJ2167-83592017-04-015e325210.7717/peerj.3252Octahedral ruthenium (II) polypyridyl complexes as antimicrobial agents against mycobacteriumGuojian Liao0Zhengyuan Ye1Yunlu Liu2Bin Fu3Chen Fu4College of Pharmaceutical Sciences, Southwest University, Chongqing, ChinaCollege of Pharmaceutical Sciences, Southwest University, Chongqing, ChinaCollege of Pharmaceutical Sciences, Southwest University, Chongqing, ChinaCollege of Pharmaceutical Sciences, Southwest University, Chongqing, ChinaCollege of Pharmaceutical Sciences, Southwest University, Chongqing, ChinaTuberculosis is one of the world’s deadliest infectious disease with 1.5 millions deaths annually. It is imperative to discover novel compounds with potent activity against M. tuberculosis. In this study, susceptibilities of M. smegmatis to the octahedral ruthenium(II) polypyridyl complexes, 1 {[(bpy)3Ru] (PF6)2 (bpy = 2,2′-bipyridine)}, 2 {[(phen)2Ru(dppz)](PF6)2 (phen = 1,10-phenanthroline, dppz = dipyridophenazine)} and 3 {[(phen)3Ru](PF6)2} were measured by broth microdilution and reported as the MIC values. Toxicities of complex 3 to LO2 and hepG2 cell lines were also measured. Complex 2 inhibited the growth of M. smegmatis with MIC value of 2 µg/mL, while complex 3 was bactericidal with MIC value of 26 µg/mL. Furthermore, the bactericidal activity of complex 3 was dependent on reactive oxygen species production. Complex 3 showed no cytotoxicity against LO2 and hepG2 cell lines at concentration as high as 64 µg/mL, paving the way for further optimization and development as a novel antibacterial agent for the treatment of M. tuberculosis infection.https://peerj.com/articles/3252.pdfRuthenium(II) complexesReactive oxygen speciesAntibacterial activity
spellingShingle Guojian Liao
Zhengyuan Ye
Yunlu Liu
Bin Fu
Chen Fu
Octahedral ruthenium (II) polypyridyl complexes as antimicrobial agents against mycobacterium
PeerJ
Ruthenium(II) complexes
Reactive oxygen species
Antibacterial activity
title Octahedral ruthenium (II) polypyridyl complexes as antimicrobial agents against mycobacterium
title_full Octahedral ruthenium (II) polypyridyl complexes as antimicrobial agents against mycobacterium
title_fullStr Octahedral ruthenium (II) polypyridyl complexes as antimicrobial agents against mycobacterium
title_full_unstemmed Octahedral ruthenium (II) polypyridyl complexes as antimicrobial agents against mycobacterium
title_short Octahedral ruthenium (II) polypyridyl complexes as antimicrobial agents against mycobacterium
title_sort octahedral ruthenium ii polypyridyl complexes as antimicrobial agents against mycobacterium
topic Ruthenium(II) complexes
Reactive oxygen species
Antibacterial activity
url https://peerj.com/articles/3252.pdf
work_keys_str_mv AT guojianliao octahedralrutheniumiipolypyridylcomplexesasantimicrobialagentsagainstmycobacterium
AT zhengyuanye octahedralrutheniumiipolypyridylcomplexesasantimicrobialagentsagainstmycobacterium
AT yunluliu octahedralrutheniumiipolypyridylcomplexesasantimicrobialagentsagainstmycobacterium
AT binfu octahedralrutheniumiipolypyridylcomplexesasantimicrobialagentsagainstmycobacterium
AT chenfu octahedralrutheniumiipolypyridylcomplexesasantimicrobialagentsagainstmycobacterium