J 2017

Different DNA damage response of cis and trans isomers of commonly used UV filter after the exposure on adult human liver stem cells and human lymphoblastoid cells

SHARMA, Anežka, Katarína BÁNYIOVÁ, Pavel BABICA, Naouale EL YAMANI, Andrew Richard COLLINS et. al.

Basic information

Original name

Different DNA damage response of cis and trans isomers of commonly used UV filter after the exposure on adult human liver stem cells and human lymphoblastoid cells

Authors

SHARMA, Anežka (203 Czech Republic, belonging to the institution), Katarína BÁNYIOVÁ (703 Slovakia, belonging to the institution), Pavel BABICA (203 Czech Republic), Naouale EL YAMANI (578 Norway), Andrew Richard COLLINS (578 Norway) and Pavel ČUPR (203 Czech Republic, guarantor, belonging to the institution)

Edition

Science of the Total Environment, AMSTERDAM, Elsevier Science BV, 2017, 0048-9697

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10511 Environmental sciences

Country of publisher

Netherlands

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 4.610

RIV identification code

RIV/00216224:14310/17:00095509

Organization unit

Faculty of Science

UT WoS

000401201800003

Keywords in English

trans/cis-EHMC; Isomerization; Human risk assessment; Genotoxicity; Adult human liver stem cells; High-throughput comet assay

Tags

Tags

International impact, Reviewed
Změněno: 1/4/2018 09:34, Ing. Nicole Zrilić

Abstract

V originále

2-ethylhexyl 4-methoxycinnamate (EHMC), used in many categories of personal care products (PCPs), is one of the most discussed ultraviolet filters because of its endocrine-disrupting effects. EHMC is unstable in sunlight and can be transformed from trans-EHMC to emergent cis-EHMC. Toxicological studies are focusing only on transEHMC; thus the toxicological data for cis-EHMC are missing. In this study, the in vitro genotoxic effects of trans- and cis-EHMC on adult human liver stem cells HL1-hT1 and human-derived lymphoblastoid cells TK-6 using a high-throughput comet assay were studied. TK-6 cells treated with cis-EHMC showed a high level of DNA damage when compared to untreated cells in concentrations 1.56 to 25 mu g mL(-1). trans-EHMC showed genotoxicity after exposure to the two highest concentrations 12.5 and 25 mu g mL(-1). The increase in DNA damage on HL1-hT1 cells induced by cis-EHMC and transEHMC was detected at the concentration 25 pg mL-1. The No observed adverse effect level (NOAEL, mg kg lbw day I) was determined using a Quantitative in vitro to in vivo extrapolation (QIVIVE) approach: NOAEL(trans-EHMC) = 3.07, NOAEL(cis-EHMC) = 0.30 for TK-6 and NOAEL(trans-EHMC) = 26.46, NOAEL(cis-EHMC) = 20.36 for HL1-hT1. The hazard index (HI) was evaluated by comparing the reference dose (RID, mg kg(-1) bw day(-1)) obtained from our experimental data with the chronic daily intake (CDI) of the female population. Using comet assay experimental data with the more sensitive TK-6 cells, HIcis-EHMC was 7 times higher than HItrans-EHMC In terms of CDI, relative contributions were; dermal exposure route > oral > inhalation. According to our results we recommend the RfD(trans-EHMC) = 0.20 and RfD(cis-EHMC) = 0.02 for trans-EHMC and cis-EHMC, respectively, to use for human health risk assessment. The significant difference in trans-EHMC and cis-EHMC response points to the need for toxicological reevaluation and application reassessment of both isomers in PCPs.

Links

GA14-27941S, research and development project
Name: Kinetika perkutánní penetrace optických izomerů filtrů ultrafialového záření, bromovaných retardérů hoření a polárních pesticidů při dermální expozici
Investor: Czech Science Foundation
LM2015051, research and development project
Name: Centrum pro výzkum toxických látek v prostředí (Acronym: RECETOX RI)
Investor: Ministry of Education, Youth and Sports of the CR
LO1214, research and development project
Name: Centrum pro výzkum toxických látek v prostředí (Acronym: RECETOX)
Investor: Ministry of Education, Youth and Sports of the CR