Microcystin-LR induces histopathological injury and cell apoptosis in the hepatopancreas of white shrimp, Litopenaeus vannamei
文献类型： 外文期刊
作者： Chen, Zhao 1 ; Yuan, Haiqing 1 ; Zhang, Shuangyong 1 ; Sharifuzzaman, S. M. 4 ; Chang, Zhiqiang 1 ;
作者机构： 1.Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, State Key Lab Mariculture Biobreeding & Sustainabl, Qingdao 266071, Shandong, Peoples R China
2.Qingdao Marine Sci & Technol Ctr, Lab Marine Fisheries Sci & Food Prod Proc, Qingdao 266237, Shandong, Peoples R China
3.Ocean Univ China, Coll Fisheries, Qingdao 266003, Peoples R China
4.Univ Chittagong, Inst Marine Sci, Chattogram 4331, Bangladesh
关键词： Hepatotoxin; Immune-related enzymes; Transcriptome; Apoptosis; Litopenaeus vannamei
期刊名称：ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY （ 影响因子：6.1； 五年影响因子：6.4 ）
ISSN： 0147-6513
年卷期： 2024 年 285 卷
页码：
收录情况： SCI
摘要： Microcystin-LR (MC-LR), a common hepatotoxin produced by bloom-forming cyanobacteria, presents a serious threat to the health of aquatic animals. In this study, we studied the impact of MC-LR on hepatopancreas histopathology, enzyme activity, transcriptome, and apoptosis of Litopenaeus vannamei. Thus, shrimp postlarvae (1.63 +/- 0.5 g) exposed to MC-LR at 500 mu g/kg caused morphological lesions in the histology of the shrimp hepatopancreas, which exhibited swollen, lighter coloration and unclear edges. Moreover, MC-LR significantly altered the hepatopancreas enzyme activities such as the levels of glutathione peroxidase (GSH-Px), superoxide dismutase (SOD), acid phosphatase (ACP), alkaline phosphatase (AKP) and lysozyme (LZM), including the state of apoptosis in hepatopancreas. From the RNA-seq analysis of the hepatopancreas, a total of 728 differentially expressed genes (DEGs) were identified, and their functions in MC-LR treatment group were involved in cellular processes, metabolic processes, biological regulation, cellular components, catalytic activity and binding. The metabolic pathways primarily associated with the DEGs included reactive oxygen species, glycerophospholipid metabolism and the phospholipase D signaling pathway. Overall, q-PCR results indicated that MC-LR led to significant changes in multiple apoptosis genes of shrimp hepatopancreas. This study expand the understanding of the effect of microcystin-LR on commercially farmed crustaceans.
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