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http://hdl.handle.net/10773/20082
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DC Field | Value | Language |
---|---|---|
dc.contributor.author | Braga, Susana S. | pt |
dc.contributor.author | Marques, Joana | pt |
dc.contributor.author | Heister, Elena | pt |
dc.contributor.author | Diogo, Catia V. | pt |
dc.contributor.author | Oliveira, Paulo J. | pt |
dc.contributor.author | Almeida Paz, Filipe A. | pt |
dc.contributor.author | Santos, Teresa M. | pt |
dc.contributor.author | Marques, Maria Paula M. | pt |
dc.date.accessioned | 2017-12-07T19:34:52Z | - |
dc.date.issued | 2014 | pt |
dc.identifier.issn | 0966-0844 | pt |
dc.identifier.uri | http://hdl.handle.net/10773/20082 | - |
dc.description.abstract | The complex [Ru[9]aneS(3)(pdon)Cl]Cl (pdon = 1,10-phenanthroline-5,6-dione) was readily obtained from the stoichiometric reaction of Ru[9]aneS(3)(dmso)Cl-2 with pdon. Recrystallisation in ethanol using salicylic acid as a co-crystallisation helper afforded single-crystals suitable for the collection of X-ray diffraction data which afforded a reasonable structural description. Two different kinds of molecular carriers were tested as vehicles for this complex: carbon nanotubes (CNTs) and cyclodextrins. CNTs had an insufficient loading rate for the ruthenium complex at CNT concentrations deemed non-cytotoxic on cultured cells. The cyclodextrin (CD) carriers, beta-CD and TRIMEB (standing for permethylated beta-CD), were able to form two adducts, studied by powder X-ray diffraction, thermogravimetric analysis (TGA), C-13{H-1} CP/MAS NMR and FT-IR spectroscopies. The DNA thermal denaturation studies showed that the complex 1 is able to intercalate with DNA. The in vitro cytotoxicity of the free complex [Ru[9]aneS(3)(pdon)Cl]Cl (1) and of its two CD adducts (2 and 3) was assessed on both rodent and human cell lines. By using the mouse K1735-M2 melanoma cell line and the non-tumour rat H9c2 cardiomyoblasts, the results showed that 1 and 2 significantly inhibited the growth of the tumour cell line while displaying a good safety profile on cardiomyoblasts. Compound 3 at 100 mu M inhibited the proliferation of both cell lines, with a higher activity towards the melanoma cell line. The cytotoxicity of the compounds 1-3 was further assessed on human breast cancer cell lines. Against the MDA-MB-231 line, growth inhibition occurred only with 1 and 3 at the incubation time of 96 h, both with approximate inhibition rates of 50 %; against the MCF-7 line, mild cytotoxicity was observed at 48 h of incubation, with IC50 values calculated above 100 mu M for 1, 2 and 3. | pt |
dc.language.iso | eng | pt |
dc.publisher | SPRINGER | pt |
dc.relation | info:eu-repo/grantAgreement/FCT/COMPETE/132936/PT | pt |
dc.relation | info:eu-repo/grantAgreement/FCT/COMPETE/132990/PT | pt |
dc.relation | info:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBD%2F44791%2F2008/PT | pt |
dc.rights | restrictedAccess | por |
dc.subject | PERMETHYLATED BETA-CYCLODEXTRIN | pt |
dc.subject | DRUG-DELIVERY | pt |
dc.subject | CARBON NANOTUBES | pt |
dc.subject | IN-VITRO | pt |
dc.subject | 1,10-PHENANTHROLINE-5,6-DIONE COMPLEXES | pt |
dc.subject | ANTIMICROBIAL ACTIVITY | pt |
dc.subject | H9C2 CARDIOMYOBLASTS | pt |
dc.subject | INCLUSION-COMPOUNDS | pt |
dc.subject | COLORIMETRIC ASSAY | pt |
dc.subject | X-RAY | pt |
dc.title | Carriers for metal complexes on tumour cells: the effect of cyclodextrins vs CNTs on the model guest phenanthroline-5,6-dione trithiacyclononane ruthenium(II) chloride | pt |
dc.type | article | pt |
dc.peerreviewed | yes | pt |
ua.distribution | international | pt |
degois.publication.firstPage | 507 | pt |
degois.publication.issue | 3 | pt |
degois.publication.lastPage | 525 | pt |
degois.publication.title | BIOMETALS | pt |
degois.publication.volume | 27 | pt |
dc.date.embargo | 10000-01-01 | - |
dc.relation.publisherversion | 10.1007/s10534-014-9725-8 | pt |
dc.identifier.doi | 10.1007/s10534-014-9725-8 | pt |
Appears in Collections: | CICECO - Artigos |
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