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dc.contributor.author | Anaya-González, Cristina | es_ES |
dc.contributor.author | Soldevila Serrano, Sonia | es_ES |
dc.contributor.author | García-Laínez, Guillermo | es_ES |
dc.contributor.author | Bosca Mayans, Francisco | es_ES |
dc.contributor.author | Andreu Ros, María Inmaculada | es_ES |
dc.date.accessioned | 2021-05-20T03:34:12Z | |
dc.date.available | 2021-05-20T03:34:12Z | |
dc.date.issued | 2019-09 | es_ES |
dc.identifier.issn | 0891-5849 | es_ES |
dc.identifier.uri | http://hdl.handle.net/10251/166533 | |
dc.description.abstract | [EN] Phototoxic effects of 6,8 dihalogenated quinolones confers to this type of molecules a potential property as photochemotherapeutic agents. Two photodehalogenation processes seem to be involved in the remarkable photoinduced cellular damage. In this context, a new 6,8 dihalogenated quinolone 1 (1-methyl-6,8-difluoro-4-oxo-7-aminodimethy1-1,4-dihydroquinoline-3-carboxylic acid) was synthesized looking for improving the phototoxic properties of fluoroquinolones (FQ) and to determine the role of the photodegradation pathways in the FQ phototoxicity. With this purpose, fluorescence emissions, laser flash photolysis experiments and photodegradation studies were performed with compound 1 using 1-ethyl-6,8-difluoro-4-oxo-7-aminodimethy1-1,4-dihidroquinoline-3-carboxylic acid (2) and lomefloxacin (LFX) as reference compounds. The shortening of alkyl chain of the N(1) of the quinolone ring revealed a lifetime increase of the reactive aryl cation generated from photolysis of the three FQ and a significant reduction of the FQ photodegradation quantum yield. The fact that these differences were smaller when the same study was done using a hydrogen donor solvent (ethanol-aqueous buffer, 50/50 v/v) evidenced the highest ability of the reactive intermediate arising from 1 to produce intermolecular alkylations. These results were correlated with in vitro 3T3 NRU phototoxicity test. Thus, when PhotoIrritation-Factor (PIF) was determined for 1, 2 and LFX using cytotoxicity profiles of BALB/c 3T3 fibroblasts treated with each compound in the presence and absence of UVA light, a PIF more higher than 30 was obtained for 1 while the values for 2 and LFX were only higher than 8 and 10, respectively. Thereby, the present study illustrates an approach to modulate the photosensitizing properties of FQ with the purpose to improve the chemotherapeutic properties of antitumor quinolones. Moreover, the results obtained in this study also evidence that the key pathway responsible for the phototoxic properties associated with dihalogenated quinolones is the aryl cation generation. | es_ES |
dc.description.sponsorship | Financial support from Spanish government (MINECO grant CTQ2014-54729-C2-2-P and Severo Ochoa fellowship for C. A., Carlos III Institute of Health grant PI16/01877), and the Generalitat Valenciana (PROMETEO program, 2017-075). We thank M.P. Marin of IIS La Fe Microscopy Unit for confocal microscopy. | es_ES |
dc.language | Inglés | es_ES |
dc.publisher | Elsevier | es_ES |
dc.relation.ispartof | Free Radical Biology and Medicine | es_ES |
dc.rights | Reconocimiento - No comercial - Sin obra derivada (by-nc-nd) | es_ES |
dc.subject | Excited states | es_ES |
dc.subject | Fluorescence emission | es_ES |
dc.subject | Laser flash photolysis | es_ES |
dc.subject | Photodehalogenation process | es_ES |
dc.subject | Phototoxicity test | es_ES |
dc.subject.classification | QUIMICA ORGANICA | es_ES |
dc.title | Chemical tuning for potential antitumor fluoroquinolones | es_ES |
dc.type | Artículo | es_ES |
dc.identifier.doi | 10.1016/j.freeradbiomed.2019.06.010 | es_ES |
dc.relation.projectID | info:eu-repo/grantAgreement/MINECO//CTQ2014-54729-C2-2-P/ES/DISEÑO DE NUEVAS PRODROGAS ANTICANCERIGENAS FOTOACTIVABLES/ | es_ES |
dc.relation.projectID | info:eu-repo/grantAgreement/GVA//PROMETEO%2F2017%2F075/ES/Reacciones fotoquímicas de biomoléculas/ | es_ES |
dc.relation.projectID | info:eu-repo/grantAgreement/MINECO//PI16%2F01877/ES/Estrategia integrada de fotodiagnóstico combinando evaluación clínica, ensayos biológicos y estudios mecanísticos/ | es_ES |
dc.rights.accessRights | Abierto | es_ES |
dc.contributor.affiliation | Universitat Politècnica de València. Departamento de Química - Departament de Química | es_ES |
dc.contributor.affiliation | Universitat Politècnica de València. Instituto Universitario Mixto de Tecnología Química - Institut Universitari Mixt de Tecnologia Química | es_ES |
dc.description.bibliographicCitation | Anaya-González, C.; Soldevila Serrano, S.; García-Laínez, G.; Bosca Mayans, F.; Andreu Ros, MI. (2019). Chemical tuning for potential antitumor fluoroquinolones. Free Radical Biology and Medicine. 141:150-158. https://doi.org/10.1016/j.freeradbiomed.2019.06.010 | es_ES |
dc.description.accrualMethod | S | es_ES |
dc.relation.publisherversion | https://doi.org/10.1016/j.freeradbiomed.2019.06.010 | es_ES |
dc.description.upvformatpinicio | 150 | es_ES |
dc.description.upvformatpfin | 158 | es_ES |
dc.type.version | info:eu-repo/semantics/publishedVersion | es_ES |
dc.description.volume | 141 | es_ES |
dc.identifier.pmid | 31195085 | es_ES |
dc.relation.pasarela | S\404701 | es_ES |
dc.contributor.funder | Generalitat Valenciana | es_ES |
dc.contributor.funder | Ministerio de Economía y Competitividad | es_ES |
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