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Article: Luminescent platinum(II) complexes with functionalized N-heterocyclic carbene or diphosphine selectively probe mismatched and abasic DNA

TitleLuminescent platinum(II) complexes with functionalized N-heterocyclic carbene or diphosphine selectively probe mismatched and abasic DNA
Authors
Issue Date2016
Citation
Nature Communications, 2016, v. 7, p. 10655 How to Cite?
AbstractThe selective targeting of mismatched DNA overexpressed in cancer cells is an appealing strategy in designing cancer diagnosis and therapy protocols. Few luminescent probes that specifically detect intracellular mismatched DNA have been reported. Here we used Pt(II) complexes with luminescence sensitive to subtle changes in the local environment and report several Pt(II) complexes that selectively bind to and identify DNA mismatches. We evaluated the complexesa'DNA-binding characteristics by ultraviolet/visible absorption titration, isothermal titration calorimetry, nuclear magnetic resonance and quantum mechanics/molecular mechanics calculations. These Pt(II) complexes show up to 15-fold higher emission intensities upon binding to mismatched DNA over matched DNA and can be utilized for both detecting DNA abasic sites and identifying cancer cells and human tissue samples with different levels of mismatch repair. Our work highlights the potential of luminescent Pt(II) complexes to differentiate between normal cells and cancer cells which generally possess more aberrant DNA structures.
Persistent Identifierhttp://hdl.handle.net/10722/227187
ISSN
2015 Impact Factor: 11.329
2015 SCImago Journal Rankings: 6.539
PubMed Central ID

 

DC FieldValueLanguage
dc.contributor.authorFUNG, SK-
dc.contributor.authorZou, T-
dc.contributor.authorCao, B-
dc.contributor.authorChen, T-
dc.contributor.authorTo, WP-
dc.contributor.authorYANG, C-
dc.contributor.authorLok, CN-
dc.contributor.authorChe, CM-
dc.date.accessioned2016-07-18T09:08:58Z-
dc.date.available2016-07-18T09:08:58Z-
dc.date.issued2016-
dc.identifier.citationNature Communications, 2016, v. 7, p. 10655-
dc.identifier.issn2041-1723-
dc.identifier.urihttp://hdl.handle.net/10722/227187-
dc.description.abstractThe selective targeting of mismatched DNA overexpressed in cancer cells is an appealing strategy in designing cancer diagnosis and therapy protocols. Few luminescent probes that specifically detect intracellular mismatched DNA have been reported. Here we used Pt(II) complexes with luminescence sensitive to subtle changes in the local environment and report several Pt(II) complexes that selectively bind to and identify DNA mismatches. We evaluated the complexesa'DNA-binding characteristics by ultraviolet/visible absorption titration, isothermal titration calorimetry, nuclear magnetic resonance and quantum mechanics/molecular mechanics calculations. These Pt(II) complexes show up to 15-fold higher emission intensities upon binding to mismatched DNA over matched DNA and can be utilized for both detecting DNA abasic sites and identifying cancer cells and human tissue samples with different levels of mismatch repair. Our work highlights the potential of luminescent Pt(II) complexes to differentiate between normal cells and cancer cells which generally possess more aberrant DNA structures.-
dc.languageeng-
dc.relation.ispartofNature Communications-
dc.rightsThis work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.-
dc.titleLuminescent platinum(II) complexes with functionalized N-heterocyclic carbene or diphosphine selectively probe mismatched and abasic DNA-
dc.typeArticle-
dc.identifier.emailZou, T: zoutt@hku.hk-
dc.identifier.emailCao, B: bcao@hku.hk-
dc.identifier.emailTo, WP: kevintwp@hku.hk-
dc.identifier.emailLok, CN: cnlok@hkucc.hku.hk-
dc.identifier.emailChe, CM: chemhead@hku.hk-
dc.identifier.authorityLok, CN=rp00752-
dc.identifier.authorityChe, CM=rp00670-
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1038/ncomms10655-
dc.identifier.pmid26883164-
dc.identifier.pmcidPMC4757794-
dc.identifier.scopuseid_2-s2.0-84958582421-
dc.identifier.hkuros259594-
dc.identifier.volume7-
dc.identifier.spage10655-
dc.identifier.epage10655-

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