PUBLICATION

Isoliquiritigenin as an antioxidant phytochemical ameliorates the developmental anomalies of zebrafish induced by 2,2',4,4'-tetrabromodiphenyl ether

Authors
Wang, C., Yang, L., Hu, Y., Zhu, J., Xia, R., Yu, Y., Shen, J., Zhang, Z., Wang, S.L.
ID
ZDB-PUB-190227-13
Date
2019
Source
The Science of the total environment   666: 390-398 (Journal)
Registered Authors
Keywords
2,2′,4,4′-Tetrabromodiphenyl ether, Antioxidant phytochemicals, Dysplasia, Isoliquiritigenin, Oxidative stress, Zebrafish
MeSH Terms
  • Animals
  • Antioxidants/pharmacology*
  • Apoptosis/genetics
  • Chalcones/pharmacology*
  • Embryo, Nonmammalian/drug effects
  • Flame Retardants/toxicity*
  • Halogenated Diphenyl Ethers/toxicity*
  • Oxidative Stress/genetics
  • Water Pollutants, Chemical/toxicity*
  • Zebrafish/embryology
PubMed
30802654 Full text @ Sci. Total Environ.
Abstract
2,2',4,4'-Tetrabromodiphenyl ether (BDE47) is the most abundant PBDE congeners in biological samples. It has strong tendencies to bioaccumulate and potentially endangers development of mammals through oxidative stress. Isoliquiritigenin (ISL), an emerging natural chalcone-type flavonoid, possesses various biological and pharmacological properties, including antioxidant, anti-allergic, anti-inflammatory, anti-tumor and estrogenic activities. The purpose of the study is to explore the antioxidant effect of ISL on the amelioration of developmental anomalies induced by BDE47. Zebrafish (Danio rerio) embryos were exposed to BDE47 (1 and 10 μM) and/or ISL (4 μM) for 4 to 120 hours post fertilization (hpf), and the morphology, development, behavior, oxidative stress status and related genes expression were assessed. The results showed that BDE47 contributed to dose-dependent growth retardation and deformities, including delayed hatching, spinal curvature, reduced body length, increased death rate, aberrant behaviors and impaired dark-adapted vision, which were significantly mitigated by ISL. Besides, ISL ameliorated excessive ROS accumulation, and exaggerated the expressions of apoptosis-related genes p53, Bcl-2, caspase 3 and caspase 9 induced by BDE47, suggesting that ISL protected zebrafish from the developmental toxicity of BDE47 by inactivation of programmed apoptosis and activation of antioxidant signaling pathways. Taken together, developing ISL as a dietary supplement might be a promising preventive strategy for the amelioration of developmental toxicity induced by environmental pollutants.
Genes / Markers
Figures
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Antibodies
Orthology
Engineered Foreign Genes
Mapping