Acetylcholinesterase and heat shock protein 70 response in larval brain tissue of Lymantria dispar L. (Lepidoptera, Limantriidae) upon chronic exposure to benzo(a)pyrene
2017
Autori:
Ilijin, LarisaMrdaković, Marija
Vlahović, Milena
Matić, Dragana
Grčić, Anja
Filipović, Aleksandra
Perić Mataruga, Vesna
Tip dokumenta:
Preprint (Objavljena verzija)
,
© Springer-Verlag GmbH Germany 2017
Metapodaci
Prikaz svih podataka o dokumentuApstrakt:
The effects of different concentrations of benzo(a)pyrene (BaP) (2, 10, 20, 100, 200, and 2000 ng/g dry food weight) on the activity of acetylcholinesterase (AChE) and concentration of heat-shock protein 70 (hsp70) in fifth instar Lymantria dispar brain tissue were investigated. Inhibition of AChE is a general effect biomarker at the individual level. We observed the most efficient inhibition of this enzyme at medium and high BaP concentrations (20, 100, 200, and 2000 ng/g dry food weight). Western blot analysis revealed the presence of two hsp 70 isoforms, with changed amounts depending on the BaP concentration. A fluctuating response in hsp70 concentration to ingested BaP was observed: with decreased levels in the groups fed 2 and 100 ng BaP/g dry food weight, but increased concentrations in the groups given 10 and 2000 ng/g dry food weight. Even though we detected changes in AChE activity and hsp70 concentration in L. dispar brain tissue upon exposure to different BaP concentrations, we cannot characterize them as sensitive and reliable biomarkers for this xenobiotic in L. dispar caterpillars.
Ključne reči:
Acetylcholinesterase; Heat shock protein 70; Benzo(a)pyrene; Biomarkers; Chronic exposure; Lymantria disparIzvor:
Environmental Science and Pollution Research, 2017, 24, 25, 20818-20823Finansiranje / projekti:
- Uticaj magnetnih polja i drugih sredinskih stresora na fiziološke odgovore i ponašanje različitih vrsta (RS-MESTD-Basic Research (BR or ON)-173027)
DOI: 10.1007/s11356-017-9898-0
ISSN: 0944-1344
PubMed: 28795330
WoS: 000408698700060
Scopus: 2-s2.0-85027140933
URI
http://link.springer.com/10.1007/s11356-017-9898-0https://radar.ibiss.bg.ac.rs/handle/123456789/2834