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Assessment of Tryptophol Genotoxicity in Four Cell Lines In Vitro: A Pilot Study with Alkaline Comet Assay (CROSBI ID 179257)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Kosalec, Ivan ; Ramić, Snježana ; Jelić, Dubravko ; Antolović, Roberto ; Pepeljnjak, Stjepan ; Kopjar, Nevenka Assessment of Tryptophol Genotoxicity in Four Cell Lines In Vitro: A Pilot Study with Alkaline Comet Assay // Arhiv za higijenu rada i toksikologiju, 62 (2010), 1; 41-49. doi: 10.2478/10004-1254-62-2011-2090

Podaci o odgovornosti

Kosalec, Ivan ; Ramić, Snježana ; Jelić, Dubravko ; Antolović, Roberto ; Pepeljnjak, Stjepan ; Kopjar, Nevenka

engleski

Assessment of Tryptophol Genotoxicity in Four Cell Lines In Vitro: A Pilot Study with Alkaline Comet Assay

Tryptophol is an aromatic alcohol and secondary metabolite of the opportunistic fungus Candida albicans. Although its toxicity profile at cell level has been poorly investigated, recent data point to cytotoxic, cytostatic, and genotoxic effects in lymphocytes and the induction of apoptosis in leukaemic blood monocytes. In this pilot study we evaluated the genotoxicity of tryptophol in vitro on four permanent cell lines of animal and human origin: ovary cells, alveolar epithelium, liver cells, and blood monocytes using the alkaline comet assay. We selected cells that might be principal targets of tryptophol and other low-molecular geno(toxins) secreted by Candida albicans during host invasion. Our results suggest that tryptophol applied in vitro at 2 mmol L-1 for 24 h damages DNA in HepG2, A549 and THP-1 cells, obviously due to bioactivation and/or decomposition of the parent compound, which results in the formation of more genotoxic compound(s) and production of reactive species that additionally damage DNA. On the other hand, notably lower levels of primary DNA damage were recorded in CHO cells, which lack metabolic activity. Future studies with tryptophol should look further into mechanisms involved in its toxic action and should focus on other cell types prone to infection with Candida spp. such as vaginal epithelial cells or keratinocytes of human origin.

aromatic alcohol; Candida albicans; DNA damage; permanent cell lines; secondary metabolite

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Podaci o izdanju

62 (1)

2010.

41-49

objavljeno

0004-1254

10.2478/10004-1254-62-2011-2090

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