PUBLICATION
The reproductive toxicity and potential mechanisms of combined exposure to dibutyl phthalate and diisobutyl phthalate in male zebrafish (Danio rerio)
- Authors
- Chen, H., Chen, K., Qiu, X., Xu, H., Mao, G., Zhao, T., Feng, W., Okeke, E.S., Wu, X., Yang, L.
- ID
- ZDB-PUB-200621-8
- Date
- 2020
- Source
- Chemosphere 258: 127238 (Journal)
- Registered Authors
- Keywords
- Dibutyl phthalate, Diisobutyl phthalate, Male zebrafish, Spermatogenesis damage, Toxicity mechanism, Transcriptomics
- MeSH Terms
-
- Animals
- Dibutyl Phthalate/analogs & derivatives*
- Dibutyl Phthalate/toxicity*
- Dose-Response Relationship, Drug
- Gene Expression Profiling
- Humans
- Male
- Models, Theoretical
- Reproduction/drug effects*
- Spermatogenesis/drug effects
- Spermatogenesis/genetics
- Testis/drug effects*
- Testis/metabolism
- Transcriptome/drug effects*
- Water Pollutants, Chemical/toxicity*
- Zebrafish*
- PubMed
- 32563064 Full text @ Chemosphere
Citation
Chen, H., Chen, K., Qiu, X., Xu, H., Mao, G., Zhao, T., Feng, W., Okeke, E.S., Wu, X., Yang, L. (2020) The reproductive toxicity and potential mechanisms of combined exposure to dibutyl phthalate and diisobutyl phthalate in male zebrafish (Danio rerio). Chemosphere. 258:127238.
Abstract
Dibutyl phthalate (DBP) and diisobutyl phthalate (DiBP) are phthalate compounds frequently detected in the environment. Despite increasing awareness of their toxicity in human and animals, the male reproductive toxicity of their combined exposure remains elusive. The purposes of this study were to investigate whether combined exposure to DBP and DiBP could induce male reproductive toxicity, and to explore the potential toxicological mechanisms. Adult male zebrafish were exposed to DBP (11, 113 and 1133 μg L-1), DiBP (10, 103 and 1038 μg L-1) and their mixtures (Mix) (11 + 10, 113 + 103, 1133 + 1038 μg L-1) for 30 days, and their effects on plasma hormone secretion, testis histology and transcriptomics were examined. Highest concentrations of Mix exposure caused greater imbalance ratio of T/E2 and more severe structural damage to testis than single exposure. These effects were consistent with the testis transcriptome analysis for which 4570 genes were differentially expressed in Mix exposure, while 2795 and 1613 genes were differentially expressed in DBP and DiBP, respectively. KEGG pathway analysis showed that both single and combined exposure of DBP and DiBP could affect cytokine-cytokine receptor interaction. The difference was that combined exposure could also affect steroid hormone synthesis, extracellular matrix receptor interaction, retinol metabolism, and PPAR signaling pathways. These results demonstrated that combined exposure to DBP and DiBP could disrupt spermatogenesis and elicit male reproductive toxicity in zebrafish.
Genes / Markers
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Orthology
Engineered Foreign Genes
Mapping