Zhang YM, Lin CY, Li BZ, Dong WR, Shu MA.
Bioaccumulation of Cd and comparative transcriptome analysis after the antagonism of Se in the hepatopancreas of estuary mud crab (Scylla paramamosain).
Comp Biochem Physiol C Toxicol Pharmacol 2023;
263:109474. [PMID:
36184038 DOI:
10.1016/j.cbpc.2022.109474]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 09/15/2022] [Accepted: 09/25/2022] [Indexed: 04/17/2023]
Abstract
Cadmium (Cd) is a heavy metal contaminant and can be toxic to environment. What's more, Selenium (Se) protects organism as heavy metal antagonist. The present study aimed to investigate whether inorganic (Na2SeO3) or organic (L-SeMc) Se have an effect on the Cd bioaccumulation, antioxidant and immunity of the mud crab (Scylla paramamosain) under Cd exposure. The study showed that the concentration of Cd in hepatopancreas under Cd exposure was higher than the inorganic or organic Se group (P < 0.05), notably, Cd concentration of hepatopancreas in organic Se treatment is less than that in inorganic Se treatment (P < 0.05). Furthermore, this study analyzed 28 gene expression about antioxidant and immune from transcriptome, the result indicated that L-SeMc (organic Se) can reduced intracellular ROS production and oxidative damage. Furthermore, apoptosis was enhanced after Cd exposure, but Se could protect against apoptosis via expression of cathepsin B. Consequently, Organic Se may have a better effect than inorganic Se on reducing Cd toxicity. This study could provide the molecular basis that Se might alleviate Cd toxicity and increases the understanding of the environmental contaminant on crustaceans.
Collapse