J 2021

Development of a Comprehensive Toxicity Pathway Model for 17α-Ethinylestradiol in Early Life Stage Fathead Minnows (Pimephales promelas)

ALCARAZ, Alper James G., David POTĚŠIL, Kamil MIKULÁŠEK, Derek GREEN, Bradley PARK et. al.

Basic information

Original name

Development of a Comprehensive Toxicity Pathway Model for 17α-Ethinylestradiol in Early Life Stage Fathead Minnows (Pimephales promelas)

Authors

ALCARAZ, Alper James G., David POTĚŠIL (203 Czech Republic, belonging to the institution), Kamil MIKULÁŠEK (203 Czech Republic, belonging to the institution), Derek GREEN, Bradley PARK, Connor BURBRIDGE, Kerstin BLUHM, Othman SOUFAN, Taylor LANE, Marek PÍPAL (203 Czech Republic, belonging to the institution), Markus BRINKMANN, Jianguo XIA, Zbyněk ZDRÁHAL (203 Czech Republic, belonging to the institution), David SCHNEIDER, Doug CRUMP, Niladri BASU, Natacha HOGAN and Markus HECKER (guarantor)

Edition

Environmental Science and Technology, American Chemical Society, 2021, 0013-936X

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10608 Biochemistry and molecular biology

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 11.357

RIV identification code

RIV/00216224:14740/21:00122241

Organization unit

Central European Institute of Technology

UT WoS

000643546400082

Keywords in English

fathead minnow; transcriptomics; proteomics; histology; estrogen; toxicity pathway

Tags

Tags

International impact, Reviewed
Změněno: 10/10/2024 14:28, Ing. Martina Blahová

Abstract

V originále

There is increasing pressure to develop alternative ecotoxicological risk assessment approaches that do not rely on expensive, time-consuming, and ethically questionable live animal testing. This study aimed to develop a comprehensive early life stage toxicity pathway model for the exposure of fish to estrogenic chemicals that is rooted in mechanistic toxicology. Embryo-larval fathead minnows (FHM; Pimephales promelas) were exposed to graded concentrations of 17α-ethinylestradiol (water control, 0.01% DMSO, 4, 20, and 100 ng/L) for 32 days. Fish were assessed for transcriptomic and proteomic responses at 4 days post-hatch (dph), and for histological and apical end points at 28 dph. Molecular analyses revealed core responses that were indicative of observed apical outcomes, including biological processes resulting in overproduction of vitellogenin and impairment of visual development. Histological observations indicated accumulation of proteinaceous fluid in liver and kidney tissues, energy depletion, and delayed or suppressed gonad development. Additionally, fish in the 100 ng/L treatment group were smaller than controls. Integration of omics data improved the interpretation of perturbations in early life stage FHM, providing evidence of conservation of toxicity pathways across levels of biological organization. Overall, the mechanism-based embryo-larval FHM model showed promise as a replacement for standard adult live animal tests.

Links

LM2018127, research and development project
Name: Česká infrastruktura pro integrativní strukturní biologii (Acronym: CIISB)
Investor: Ministry of Education, Youth and Sports of the CR
LM2018140, research and development project
Name: e-Infrastruktura CZ (Acronym: e-INFRA CZ)
Investor: Ministry of Education, Youth and Sports of the CR
LQ1601, research and development project
Name: CEITEC 2020 (Acronym: CEITEC2020)
Investor: Ministry of Education, Youth and Sports of the CR
90127, large research infrastructures
Name: CIISB II