Naslov
In situ visualization of carbonylation and its co- localization with proteins, lipids, DNA and RNA in Caenorhabditis elegans

Autori
Kuzmić, Mira ; Javot, Hélène ; Bonzom, Jean- Marc ; Lecomte-Pradines, Catherine ; Radman, Miroslav ; Garnier-Laplace, Jacqueline ; Frelon, Sandrine

Izvornik
Free radical biology & medicine (0891-5849) 101 (2016); 465-474

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
In situ carbonylation ; Protein carbonylation ; DNA carbonylation ; RNA carbonylation ; Lipid carbonylation ; Fluorescent probes ; Caenorhabditis elegans

Sažetak
All key biological macromolecules are susceptible to carbonylation – an irreparable oxidative damage with deleterious biological consequences. Carbonyls in proteins, lipids and DNA from cell extracts have been used as a biomarker of oxidative stress and aging, but formation of insoluble aggregates by carbonylated proteins precludes quantification. Since carbonylated proteins correlate with and become a suspected cause of morbidity and mortality in some organisms, there is a need for their accurate quantification and localization. Using appropriate fluorescent probes, we have developed an in situ detection of total proteins, DNA, RNA, lipids and carbonyl groups at the level of the whole organism. In C. elegans, we found that after UV irradiation carbonylation co-localizes mainly with proteins and, to a lesser degree, with DNA, RNA and lipids. The method efficiency was illustrated by carbonylation induction assessment over 5 different UV doses. The procedure enables the monitoring of carbonylation in the nematode C. elegans during stress, aging and disease along its life cycle including the egg stage.

Izvorni jezik
Engleski

Znanstvena područja
Biologija

POVEZANOST RADA