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Article: Endogenous aldehyde accumulation generates genotoxicity and exhaled biomarkers in esophageal adenocarcinoma

TitleEndogenous aldehyde accumulation generates genotoxicity and exhaled biomarkers in esophageal adenocarcinoma
Authors
Issue Date2021
Citation
Nature Communications, 2021, v. 12, n. 1, article no. 1454 How to Cite?
AbstractVolatile aldehydes are enriched in esophageal adenocarcinoma (EAC) patients’ breath and could improve early diagnosis, however the mechanisms of their production are unknown. Here, we show that weak aldehyde detoxification characterizes EAC, which is sufficient to cause endogenous aldehyde accumulation in vitro. Two aldehyde groups are significantly enriched in EAC biopsies and adjacent tissue: (i) short-chain alkanals, and (ii) medium-chain alkanals, including decanal. The short-chain alkanals form DNA-adducts, which demonstrates genotoxicity and confirms inadequate detoxification. Metformin, a putative aldehyde scavenger, reduces this toxicity. Tissue and breath concentrations of the medium-chain alkanal decanal are correlated, and increased decanal is linked to reduced ALDH3A2 expression, TP53 deletion, and adverse clinical features. Thus, we present a model for increased exhaled aldehydes based on endogenous accumulation from reduced detoxification, which also causes therapeutically actionable genotoxicity. These results support EAC early diagnosis trials using exhaled aldehyde analysis.
Persistent Identifierhttp://hdl.handle.net/10722/341301
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorAntonowicz, Stefan-
dc.contributor.authorBodai, Zsolt-
dc.contributor.authorWiggins, Tom-
dc.contributor.authorMarkar, Sheraz R.-
dc.contributor.authorBoshier, Piers R.-
dc.contributor.authorGoh, Yan Mei-
dc.contributor.authorAdam, Mina E.-
dc.contributor.authorLu, Haonan-
dc.contributor.authorKudo, Hiromi-
dc.contributor.authorRosini, Francesca-
dc.contributor.authorGoldin, Robert-
dc.contributor.authorMoralli, Daniela-
dc.contributor.authorGreen, Catherine M.-
dc.contributor.authorPeters, Chris J.-
dc.contributor.authorHabib, Nagy-
dc.contributor.authorGabra, Hani-
dc.contributor.authorFitzgerald, Rebecca C.-
dc.contributor.authorTakats, Zoltan-
dc.contributor.authorHanna, George B.-
dc.date.accessioned2024-03-13T08:41:44Z-
dc.date.available2024-03-13T08:41:44Z-
dc.date.issued2021-
dc.identifier.citationNature Communications, 2021, v. 12, n. 1, article no. 1454-
dc.identifier.urihttp://hdl.handle.net/10722/341301-
dc.description.abstractVolatile aldehydes are enriched in esophageal adenocarcinoma (EAC) patients’ breath and could improve early diagnosis, however the mechanisms of their production are unknown. Here, we show that weak aldehyde detoxification characterizes EAC, which is sufficient to cause endogenous aldehyde accumulation in vitro. Two aldehyde groups are significantly enriched in EAC biopsies and adjacent tissue: (i) short-chain alkanals, and (ii) medium-chain alkanals, including decanal. The short-chain alkanals form DNA-adducts, which demonstrates genotoxicity and confirms inadequate detoxification. Metformin, a putative aldehyde scavenger, reduces this toxicity. Tissue and breath concentrations of the medium-chain alkanal decanal are correlated, and increased decanal is linked to reduced ALDH3A2 expression, TP53 deletion, and adverse clinical features. Thus, we present a model for increased exhaled aldehydes based on endogenous accumulation from reduced detoxification, which also causes therapeutically actionable genotoxicity. These results support EAC early diagnosis trials using exhaled aldehyde analysis.-
dc.languageeng-
dc.relation.ispartofNature Communications-
dc.titleEndogenous aldehyde accumulation generates genotoxicity and exhaled biomarkers in esophageal adenocarcinoma-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1038/s41467-021-21800-5-
dc.identifier.pmid33674602-
dc.identifier.scopuseid_2-s2.0-85102181271-
dc.identifier.volume12-
dc.identifier.issue1-
dc.identifier.spagearticle no. 1454-
dc.identifier.epagearticle no. 1454-
dc.identifier.eissn2041-1723-
dc.identifier.isiWOS:000627410000002-

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