Cadmium regulates FKBP5 through miR-9-5p and induces carp lymphocyte apoptosis
Copyright © 2021 Elsevier Ltd. All rights reserved..
Cadmium (Cd) is an environmental pollutant produced by industrial activities, which has no known physiological benefits to organisms. In our previous study, the transcriptomic profiles of carp head kidney exposed to Cd was analyzed by genomics technique, and confirmed that miRNAs are important in the head kidney injury of carp induced by Cd, but the specific biological mechanism was unclear. In order to further explore the effect of Cd on carp head kidney lymphocyte damage, we established a model of Cd exposure in vitro. The results showed that Cd could increase the expression of Bax (Bcl-2 associated X protein), Caspase9 (Cysteinyl aspartate specific proteinase 9) and Caspase3 (Cysteinyl aspartate specific proteinase 3), inhibit the expression of Bcl-2 (B cell lymphoma/leukemia 2), and induce apoptosis of carp head kidney lymphocytes. In our previous study, we screened the differentially expressed miRNA in Cd-treated lymphocytes by high-throughput sequencing, and found that there was a significant difference in the expression of miR-9-5p. The expression trend of miR-9-5p in the vitro model was the same as that of high-throughput sequencing. We screened the differentially expressed gene FKBP5 (FK506-binding protein 51) in lymphocytes treated with Cd. It was confirmed by double luciferase reporter gene analysis that FKBP5 was the target gene of miR-9-5p. We established the overexpression/knockdown model of miR-9-5p in carp head kidney lymphocyte in vitro. The results showed that miR-9-5p could inhibit the expression of FKBP5, increase the phosphorylation level of Akt, inhibit apoptosis and improve the cell survival rate in carp head kidney lymphocytes. Together, Cd could down-regulate the expression of miR-9-5p, target up-regulate the expression of FKBP5, inhibit the phosphorylation of Akt, and promote the apoptosis of carp head kidney lymphocytes through mitochondrial pathway.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2022 |
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| Erschienen: |
2022 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:120 |
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| Enthalten in: |
Fish & shellfish immunology - 120(2022) vom: 01. Jan., Seite 353-359 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Luan, Peixian [VerfasserIn] |
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| Links: |
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| Anmerkungen: |
Date Completed 28.02.2022 Date Revised 28.02.2022 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1016/j.fsi.2021.12.006 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| 520 | |a Cadmium (Cd) is an environmental pollutant produced by industrial activities, which has no known physiological benefits to organisms. In our previous study, the transcriptomic profiles of carp head kidney exposed to Cd was analyzed by genomics technique, and confirmed that miRNAs are important in the head kidney injury of carp induced by Cd, but the specific biological mechanism was unclear. In order to further explore the effect of Cd on carp head kidney lymphocyte damage, we established a model of Cd exposure in vitro. The results showed that Cd could increase the expression of Bax (Bcl-2 associated X protein), Caspase9 (Cysteinyl aspartate specific proteinase 9) and Caspase3 (Cysteinyl aspartate specific proteinase 3), inhibit the expression of Bcl-2 (B cell lymphoma/leukemia 2), and induce apoptosis of carp head kidney lymphocytes. In our previous study, we screened the differentially expressed miRNA in Cd-treated lymphocytes by high-throughput sequencing, and found that there was a significant difference in the expression of miR-9-5p. The expression trend of miR-9-5p in the vitro model was the same as that of high-throughput sequencing. We screened the differentially expressed gene FKBP5 (FK506-binding protein 51) in lymphocytes treated with Cd. It was confirmed by double luciferase reporter gene analysis that FKBP5 was the target gene of miR-9-5p. We established the overexpression/knockdown model of miR-9-5p in carp head kidney lymphocyte in vitro. The results showed that miR-9-5p could inhibit the expression of FKBP5, increase the phosphorylation level of Akt, inhibit apoptosis and improve the cell survival rate in carp head kidney lymphocytes. Together, Cd could down-regulate the expression of miR-9-5p, target up-regulate the expression of FKBP5, inhibit the phosphorylation of Akt, and promote the apoptosis of carp head kidney lymphocytes through mitochondrial pathway | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Apoptosis | |
| 650 | 4 | |a Cadmium | |
| 650 | 4 | |a Carp lymphocytes | |
| 650 | 4 | |a FKBP5 | |
| 650 | 4 | |a miR-9-5p | |
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| 700 | 1 | |a Zhang, Haoran |e verfasserin |4 aut | |
| 700 | 1 | |a Zhang, Xiaofeng |e verfasserin |4 aut | |
| 700 | 1 | |a Hu, Guo |e verfasserin |4 aut | |
| 700 | 1 | |a Zhang, Ziwei |e verfasserin |4 aut | |
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