印月^1,2,
镇华君^1,2,3,,,
修光利^1,2,3,,
1. 上海市环境保护化学污染物环境标准与风险管理重点实验室, 华东理工大学资源与环境工程学院, 上海 200237;
2. 国家环境保护化工过程环境风险评价与控制重点实验室, 华东理工大学资源与环境工程学院, 上海 200237;
3. 上海污染控制与生态安全研究院, 上海 200092

作者简介: 印月(1994-),女,硕士研究生,研究方向为环境毒理学,E-mail:yinyue0924@126.com.

通讯作者: 镇华君,xiugl@ecust.edu.cn ; 修光利,zhenhuajun@ecust.edu.cn

基金项目: 上海市浦江人才计划资助项目（20PJ1402700）；国家自然科学基金项目（21707035）


中图分类号: X171.5

Comprehensive Evaluation of Water Quality of Huangpu River Using HepG2 Cell-based Lipidomics Approach

Yin Yue^1,2,
Zhen Huajun^1,2,3,,,
Xiu Guangli^1,2,3,,
1. Shanghai Environmental Protection Key Laboratory for Environmental Standard and Risk Management of Chemical Pollutants, School of Resources&Environmental Engineering, East China University of Science&Technology, Shanghai 200237, China;
2. State Environmental Protection Key Lab of Environmental Risk Assessment and Control on Chemical Processes, School of Resources&Environmental Engineering, East China University of Science and Technology, Shanghai 200237, China;
3. Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China

Corresponding authors: Zhen Huajun,xiugl@ecust.edu.cn ; Xiu Guangli,zhenhuajun@ecust.edu.cn

CLC number: X171.5

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摘要:环境水体中复合污染的毒性识别一直是环境科学界关注的热点。基于代谢组学的生物监测方法通过监测暴露前后生物内源性代谢物的变化，在评估复合污染导致的综合毒性效应中具有广泛的应用前景。本研究从污染物对细胞脂类代谢的影响角度出发，采用体外肝癌细胞（HepG2）暴露和脂质组分析相结合的方法，对黄浦江干流和支流共27个采样点的水质进行了综合评价。研究发现，水样对HepG2细胞的脂代谢影响程度与采样点所属河段紧密相关。黄浦江中游水样对HepG2细胞的平均脂代谢影响程度（3.40%）高于上游（1.65%）和下游（0.78%），而流经城区的支流水样对细胞的脂代谢影响（5.20%）明显高于干流水样（1.80%）。此外，在采集的水样中超过70%的样品都导致HepG2细胞内甘油三酯（TG）大量蓄积，揭示了黄浦江水体中的复合污染物可能诱导肝脏产生脂毒性损伤。本研究为环境水质监测提供新的方法，研究结果为上海市生态环境和水质安全管理部门提供重要的参考信息。
关键词: 复合污染物/
HepG2细胞/
综合毒性评价/
脂质组学/
黄浦江

Abstract:Toxicity characterization of complex environmental mixtures has become one of the main focuses of attention among environmental scientists. And biomonitoring using metabolomics-based approaches have the potential of providing valuable ecotoxicological information for complex environmental mixtures. In the current study, a cell-based lipidomics approach has been developed to assess the water quality of Huangpu River in Shanghai. The magnitude of impact on HepG2 lipidome was found to be dependent on the specific location of sampling sites along the river. The impact on HepG2 lipidome from the middle reaches samples (3.40%) is higher than that from upstream (1.65%) and downstream (0.78%), and the impact from tributaries that flow across the downtown area (5.20%) was significantly higher than that from the mainstream (1.80%). The exposed HepG2 cells exhibited a common pattern of triglyceride (TG) accumulation, implying the hepatic lipotoxicity of complex mixtures of pollutants that are present in Huangpu River. Overall, this study demonstrated the utility of cell-based lipidomics as an effective tool for assessing the biological effects of complex pollutant mixtures. It also provided important information on water quality that could potentially aid in the management of ecological safety and water quality in Shanghai.
Key words:complex environmental mixtures/
HepG2 cells/
mixture toxicity assessment/
lipidomics/
Huangpu River.

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