1
|
Zeng T, Lv J, Liang J, Xie B, Liu L, Tan Y, Zhu J, Jiang J, Xie H. Zebrafish cobll1a regulates lipid homeostasis via the RA signaling pathway. Front Cell Dev Biol 2024; 12:1381362. [PMID: 38699158 PMCID: PMC11063382 DOI: 10.3389/fcell.2024.1381362] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2024] [Accepted: 04/04/2024] [Indexed: 05/05/2024] Open
Abstract
Background The COBLL1 gene has been implicated in human central obesity, fasting insulin levels, type 2 diabetes, and blood lipid profiles. However, its molecular mechanisms remain largely unexplored. Methods In this study, we established cobll1a mutant lines using the CRISPR/Cas9-mediated gene knockout technique. To further dissect the molecular underpinnings of cobll1a during early development, transcriptome sequencing and bioinformatics analysis was employed. Results Our study showed that compared to the control, cobll1a -/- zebrafish embryos exhibited impaired development of digestive organs, including the liver, intestine, and pancreas, at 4 days post-fertilization (dpf). Transcriptome sequencing and bioinformatics analysis results showed that in cobll1a knockout group, the expression level of genes in the Retinoic Acid (RA) signaling pathway was affected, and the expression level of lipid metabolism-related genes (fasn, scd, elovl2, elovl6, dgat1a, srebf1 and srebf2) were significantly changed (p < 0.01), leading to increased lipid synthesis and decreased lipid catabolism. The expression level of apolipoprotein genes (apoa1a, apoa1b, apoa2, apoa4a, apoa4b, and apoea) genes were downregulated. Conclusion Our study suggest that the loss of cobll1a resulted in disrupted RA metabolism, reduced lipoprotein expression, and abnormal lipid transport, therefore contributing to lipid accumulation and deleterious effects on early liver development.
Collapse
Affiliation(s)
- Ting Zeng
- Hunan International Joint Laboratory of Animal Intestinal Ecology and Health, Laboratory of Animal Nutrition and Human Health, College of Life Sciences, Hunan Normal University, Changsha, Hunan, China
- Hunan Provincial Key Laboratory of Animal Intestinal Function and Regulation, Changsha, Hunan, China
| | - Jinrui Lv
- Hunan International Joint Laboratory of Animal Intestinal Ecology and Health, Laboratory of Animal Nutrition and Human Health, College of Life Sciences, Hunan Normal University, Changsha, Hunan, China
- Hunan Provincial Key Laboratory of Animal Intestinal Function and Regulation, Changsha, Hunan, China
| | - Jiaxin Liang
- Hunan International Joint Laboratory of Animal Intestinal Ecology and Health, Laboratory of Animal Nutrition and Human Health, College of Life Sciences, Hunan Normal University, Changsha, Hunan, China
- Hunan Provincial Key Laboratory of Animal Intestinal Function and Regulation, Changsha, Hunan, China
| | - Binling Xie
- Hunan International Joint Laboratory of Animal Intestinal Ecology and Health, Laboratory of Animal Nutrition and Human Health, College of Life Sciences, Hunan Normal University, Changsha, Hunan, China
- Hunan Provincial Key Laboratory of Animal Intestinal Function and Regulation, Changsha, Hunan, China
| | - Ling Liu
- Hunan International Joint Laboratory of Animal Intestinal Ecology and Health, Laboratory of Animal Nutrition and Human Health, College of Life Sciences, Hunan Normal University, Changsha, Hunan, China
- Hunan Provincial Key Laboratory of Animal Intestinal Function and Regulation, Changsha, Hunan, China
| | - Yuanyuan Tan
- Hunan International Joint Laboratory of Animal Intestinal Ecology and Health, Laboratory of Animal Nutrition and Human Health, College of Life Sciences, Hunan Normal University, Changsha, Hunan, China
- Hunan Provincial Key Laboratory of Animal Intestinal Function and Regulation, Changsha, Hunan, China
| | - Junwei Zhu
- Hunan International Joint Laboratory of Animal Intestinal Ecology and Health, Laboratory of Animal Nutrition and Human Health, College of Life Sciences, Hunan Normal University, Changsha, Hunan, China
- Hunan Provincial Key Laboratory of Animal Intestinal Function and Regulation, Changsha, Hunan, China
| | - Jifan Jiang
- Hunan International Joint Laboratory of Animal Intestinal Ecology and Health, Laboratory of Animal Nutrition and Human Health, College of Life Sciences, Hunan Normal University, Changsha, Hunan, China
- Hunan Provincial Key Laboratory of Animal Intestinal Function and Regulation, Changsha, Hunan, China
| | - Huaping Xie
- Hunan International Joint Laboratory of Animal Intestinal Ecology and Health, Laboratory of Animal Nutrition and Human Health, College of Life Sciences, Hunan Normal University, Changsha, Hunan, China
- Hunan Provincial Key Laboratory of Animal Intestinal Function and Regulation, Changsha, Hunan, China
| |
Collapse
|
2
|
Wang X, Li F, Xin B, Wang Q, Fu H, Yan Z, Zhu Y. [Change of the retinoic acid pathway in hypothalamus and pituitary damage induced by combined exposure to low-level Pb~(2+) and 1-nitropyrene in mice]. Wei Sheng Yan Jiu 2023; 52:993-999. [PMID: 38115665 DOI: 10.19813/j.cnki.weishengyanjiu.2023.06.021] [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] [Subscribe] [Scholar Register] [Indexed: 12/21/2023]
Abstract
OBJECTIVE To observe the expression of the retinoic acid(RA) pathway in hypothalamus and pituitary damage induced by combined exposure of low-level lead and 1-nitropyrene in mice, and to explore the relationship between the changes of RA pathway and hypothalamus and pituitary damage. METHODS A total of 84 4-week-old ICR mice were randomly divided into the control group, Pb~(2+) tainted group(0.008 mg/L), 1-NP tainted group(0.1 mg/kg), low(0.008 mg/L Pb~(2+)+0.004 mg/kg 1-NP), medium(0.008 mg/L Pb~(2+)+0.02 mg/kg 1-NP), and high-dose co-toxicity group(0.008 mg/L Pb~(2+)+0.1 mg/kg 1-NP) according to body weight, with 14 mice in each group. Among them, Pb~(2+) was provided by lead acetate, added to deionized water and ingested by mice drinking freely, 1-NP was given by intraperitoneal injection, 1-NP was administered by intraperitoneal injection. Record daily water intake and food intake. After 21 consecutive days of exposure, body mass was measured, histological changes in the hypothalamus and pituitary were observed under an optical microscope, and lead content in brain tissue was measured by atomic absorption spectrometry. The real-time fluorescence quantitative PCR was used to detect the abundance of retinoic acid pathway members and c-Jun N-terminal kinases genes(Jnks), and the western blot method was used to detect expression levels of acetaldehyde dehydrogenase 2(ALDH2), cytochrome P450 family member 26A1(CYP26a1) proteins. RESULTS There was no difference in the mean weekly water intake and food intake of the mice in each group. The body weight of the high-dose co-toxicity group mice((27.4±1.9)g) was lower than that of the control group((29.8±2.3)g)(P<0.05). The level of serum follicle-stimulating hormone(FSH) in the middle and high dose co-toxicity groups((265.01±2.99), (260.42±3.61)pg/mL, respectively) was lower than that in the control group((279.00±1.30)pg/mL, P<0.05). The content of Pb~(2+) in the brain of each group containing Pb~(2+) was higher than that of the control group. In the hypothalamic and pituitary tissues, the abundance of Adh1, Adh2, Rar and Rxr, and ALDH2 levels in the medium and high dose co-toxicity groups were higher than those in the control group(P<0.05). Cyp26a1 gene abundance and protein levels were lower in the medium and high dose co-toxicity groups than in the control group(P<0.05). The abundance of Jnks in the high-dose co-toxicity group was higher than that in the control group(P<0.05). CONCLUSION Continuous exposure to 0.008 mg/L Pb~(2+)+0.1 mg/kg 1-NP for 21 days can cause damage to the hypothalamus and pituitary of mice, and activate the RA signaling pathway.
Collapse
Affiliation(s)
- Xuning Wang
- Department of Preventive Medicine, School of Medicine, Hunan Normal University, Changsha 410013, China
| | - Fan Li
- Department of Preventive Medicine, School of Medicine, Hunan Normal University, Changsha 410013, China
| | - Bingyan Xin
- Department of Preventive Medicine, School of Medicine, Hunan Normal University, Changsha 410013, China
| | - Qing Wang
- Department of Preventive Medicine, School of Medicine, Hunan Normal University, Changsha 410013, China
| | - Hu Fu
- Department of Preventive Medicine, School of Medicine, Hunan Normal University, Changsha 410013, China
| | - Zhengli Yan
- Department of Preventive Medicine, School of Medicine, Hunan Normal University, Changsha 410013, China
| | - Yongfei Zhu
- Department of Preventive Medicine, School of Medicine, Hunan Normal University, Changsha 410013, China
| |
Collapse
|
3
|
Li R, Xin B, Wang Q, Fu H, Yan Z, Wu Y, Zhu Y. [Expression of retinoic acid signaling pathway in uterus injury induced by procymidone in adolescent mice]. Wei Sheng Yan Jiu 2021; 50:1000-1005. [PMID: 34949330 DOI: 10.19813/j.cnki.weishengyanjiu.2021.06.021] [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] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
OBJECTIVE To investigate the expression of key genes and proteins of retinoic acid signaling pathway in procymidone-induced uterine injury in adolescent mice, and analyze the relationship between the signaling pathway and female reproductive damage. METHODS The 3-week age ICR mice were randomly divided into low, medium, and high-dose groups and one control group with 8 mice in each group by weight. The low, medium and high dose groups were respectively given 50, 100 and 200 mg/(kg·d) procymidone orally for 21 days continuously, while the control group was given equal volume of soybean oil. After the mice were sacrificed, the uterus was taken from both sides for observing the histological changes in the cross-sectional slices of the uterus, the detection of the expression abundance of genes which related to the retinoic acid signaling pathway by the real-time fluorescent quantitative PCR, and the measurement of ALDH2 and CYP26 a1 proteins expression by Western blot. RESULTS The body weight of mice in low-dose, medium-dose and high-dose groups were(27.50±1.49) g, (27.72±1.40) g and(26.89±1.19) g, respectively, which were lower than those in control group(31.48±1.14) g(P<0.05). The density of uterine lining monolayer columnar epithelium and lamina propria tubular uterine glands gradually decreases, at the same time the uterine folds become less with the dose of procymidone increases. adh1, ad/2, aldh1a1 in each experimental group were higher than those in the control group(P<0.05); the expression levels of aldh1a2 and aldh1a3 genes in the middle and high dose groups were higher than those in the control group(P<0.05); the expression levels of retinoic acid nuclear receptor rarα, rarγ, rxrα and rxrβ genes in the high-dose group were higher than those in the control(P<0.05); yet the expression levels of cyp26a2 and cyp26a3 in the high-dose group were lower than those in the control group(P<0.05); the jnk family in medium and high dose groups were higher than the control(P<0.05). The expression of ALDH2 in each experimental group was higher than that in the control group, and increased with the increase of the dose(P<0.05); the expression of CYP26 a1 in each experimental group was not significantly different from that of the control group. CONCLUSION The retinoic acid signal pathway is activated in procymidone-induced uterine injury in mice, then regulates the increase of the expression of jnk family, leading to the damage.
Collapse
Affiliation(s)
- Rui Li
- Department of Preventive Medicine, Medical School, Hunan Normal University, Changsha 410013, China
| | - Bingyan Xin
- Department of Preventive Medicine, Medical School, Hunan Normal University, Changsha 410013, China
| | - Qing Wang
- Department of Preventive Medicine, Medical School, Hunan Normal University, Changsha 410013, China
| | - Hu Fu
- Department of Preventive Medicine, Medical School, Hunan Normal University, Changsha 410013, China
| | - Zhengli Yan
- Department of Preventive Medicine, Medical School, Hunan Normal University, Changsha 410013, China
| | - Yuzhuo Wu
- Department of Preventive Medicine, Medical School, Hunan Normal University, Changsha 410013, China
| | - Yongfei Zhu
- Department of Preventive Medicine, Medical School, Hunan Normal University, Changsha 410013, China
| |
Collapse
|
4
|
Mukai Y, Yamanishi R. Retinol but not retinoic acid can enhance the glutathione level, in a manner similar to β-carotene, in a murine cultured macrophage cell line. Food Sci Nutr 2018; 6:1650-1656. [PMID: 30258608 PMCID: PMC6145222 DOI: 10.1002/fsn3.726] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2017] [Revised: 03/01/2018] [Accepted: 06/08/2018] [Indexed: 11/10/2022] Open
Abstract
SCOPE We evaluated the potential of retinol and retinoic acid (RA) to enhance intracellular glutathione (GSH) levels in a murine cultured macrophage cell line, RAW264, to investigate whether the RA signaling pathway is involved in the β-carotene-induced GSH enhancement. METHODS AND RESULTS We examined GSH levels in RAW264 cells cultured in media supplemented with β-carotene and various inhibitors (ER50891 for RA receptor (RAR)α, CD2665 for RARβ/γ, or HX531 for all subtypes of retinoid X receptor (RXR)), to verify each inhibitor's activity against β-carotene, as well as in media supplemented with various stimulants (AM80 for RARα, CD2314 for RARβ, CD437 for RARγ, or SR11237 for RXR), to compare their activity with that of β-carotene. We also examined the GSH level and glutamate-cysteine-ligase (GCL) expression in RAW264 cells cultured in all-trans RA- or retinol-supplemented media. Enhanced GSH production was not inhibited by any tested antagonist, and, apart from β-carotene, no agonist induced GSH production. Retinol, but not all-trans RA, enhanced GSH synthesis and increased GCL expression, similar to that observed with β-carotene. CONCLUSION The RA signaling pathway may not be involved in the β-carotene-induced enhancement of GSH levels in RAW264 cells, whereas, like β-carotene, retinol can enhance the GSH level and GCL expression.
Collapse
Affiliation(s)
- Yuuka Mukai
- Department of Food Hygiene and FunctionSchool of Nutrition and DieteticsFaculty of Health and Social WorkKanagawa University of Human ServicesKanagawaJapan
| | - Rintaro Yamanishi
- Department of Food Science and NutritionSchool of Nutrition and DieteticsFaculty of Health and Social WorkKanagawa University of Human ServicesKanagawaJapan
| |
Collapse
|