期刊
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
卷 23, 期 17, 页码 -出版社
MDPI
DOI: 10.3390/ijms23179571
关键词
Pb2+; toxicology; endoplasmic reticulum stress; apoptosis; somatic segment development
资金
- National Key Technologies R&D Program of China [2019YFA0705202]
- National Natural Science Foundation of China [31701296, 11474076, 21974097]
- Education Department of Guangdong Province [2020KSYS004]
- National Key Research and Development Program of China [2021YFC3200804]
- Open Project of State Key Laboratory of Urban Water Resources and Water Environment, Harbin Institute of Technology [ES202116]
Lead is an important raw material for industrial production, but it poses serious harm to aquatic ecosystems, especially causing spinal malformations in zebrafish embryos, which is mainly attributed to Pb2+-induced endoplasmic reticulum stress and apoptosis.
Lead (Pb) is an important raw material for modern industrial production, they enter the aquatic environment in several ways and cause serious harm to aquatic ecosystems. Lead ions (Pb2+) are highly toxic and can accumulate continuously in organisms. In addition to causing biological deaths, it can also cause neurological damage in vertebrates. Our experiment found that Pb2+ caused decreased survival, delayed hatching, decreased frequency of voluntary movements at 24 hpf, increased heart rate at 48 hpf and increased malformation rate in zebrafish embryos. Among them, the morphology of spinal malformations varied, with 0.4 mg/L Pb2+ causing a dorsal bending of the spine of 72 hpf zebrafish and a ventral bending in 120 hpf zebrafish. It was detected that spinal malformations were mainly caused by Pb2+-induced endoplasmic reticulum stress and apoptosis. The genetic changes in somatic segment development which disrupted developmental polarity as well as osteogenesis, resulting in uneven myotomal development. In contrast, calcium ions can rescue the series of responses induced by lead exposure and reduce the occurrence of spinal curvature. This article proposes new findings of lead pollution toxicity in zebrafish.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据