1
|
Zhang B, Wang X, Meng F, Du S, Li H, Xia Y, Yao Y, Zhang P, Cui J, Cui Z. Metabolic variation and oxidative stress responses of clams (Ruditapes philippinarum) perturbed by ofloxacin exposure. JOURNAL OF HAZARDOUS MATERIALS 2024; 480:135783. [PMID: 39276738 DOI: 10.1016/j.jhazmat.2024.135783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2024] [Revised: 09/02/2024] [Accepted: 09/06/2024] [Indexed: 09/17/2024]
Abstract
Ofloxacin (OFL), one of the most widely used fluoroquinolone antibiotics, has been frequently detected in marine environments. Nonetheless, researchers are yet to focus on the effects of OFL on the benthos. In the present study, marine clams (Ruditapes philippinarum) were exposed to OFL (0.5, 50, and 500 μg/L) for 14 d, followed by a 7 d depuration period. The accumulation of OFL, antioxidative defense responses, neurotoxicity, burrowing behavior, and metabolomic changes in clams were evaluated. The results indicated that OFL could accumulate in clams, albeit with a low bioaccumulation capacity. The intermediate (50 μg/L) and high (500 μg/L) levels of OFL induced significant antioxidative responses in the gills and digestive glands of clams, mainly manifesting as the inhibition of catalase activities and the induction of superoxide dismutase and glutathione S-transferase activities, which ultimately elevated the content of malondialdehyde, causing oxidative damage. Furthermore, the significant induction of acetylcholinesterase activities was observed, coinciding with a significant increase in burrowing rates of clams. The high level of OFL affected glycerophospholipid, arachidonic acid, steroid hormone biosynthesis, unsaturated fatty acids biosynthesis, and glycolysis/glycogenesis metabolism. In conclusion, this study has contributed to the understanding of the physiological and biochemical effects and molecular toxicity mechanisms of OFL to marine bivalves.
Collapse
Affiliation(s)
- Bo Zhang
- Key Laboratory of Marine Environment and Ecology, Ministry of Education, Ocean University of China, Qingdao, Shandong 266100, China; State Key Laboratory of Mariculture Biobreeding and Sustainable Goods, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, Shandong 266071, China; Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao Marine Science and Technology Center, Qingdao, Shandong 266237, China
| | - Xiaotong Wang
- Key Laboratory of Marine Environment and Ecology, Ministry of Education, Ocean University of China, Qingdao, Shandong 266100, China; College of Environmental Science and Engineering, Qingdao University, Qingdao 266071, China
| | - Fanping Meng
- Key Laboratory of Marine Environment and Ecology, Ministry of Education, Ocean University of China, Qingdao, Shandong 266100, China.
| | - Shuhao Du
- Key Laboratory of Marine Environment and Ecology, Ministry of Education, Ocean University of China, Qingdao, Shandong 266100, China
| | - Haiping Li
- Key Laboratory of Marine Environment and Ecology, Ministry of Education, Ocean University of China, Qingdao, Shandong 266100, China
| | - Yufan Xia
- Key Laboratory of Marine Environment and Ecology, Ministry of Education, Ocean University of China, Qingdao, Shandong 266100, China
| | - Yu Yao
- Key Laboratory of Marine Environment and Ecology, Ministry of Education, Ocean University of China, Qingdao, Shandong 266100, China
| | - Ping Zhang
- Key Laboratory of Marine Environment and Ecology, Ministry of Education, Ocean University of China, Qingdao, Shandong 266100, China
| | - Jiali Cui
- Key Laboratory of Marine Environment and Ecology, Ministry of Education, Ocean University of China, Qingdao, Shandong 266100, China
| | - Zhengguo Cui
- State Key Laboratory of Mariculture Biobreeding and Sustainable Goods, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, Shandong 266071, China; Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao Marine Science and Technology Center, Qingdao, Shandong 266237, China
| |
Collapse
|
2
|
Traber MG. Deciphering the enigma of the function of alpha-tocopherol as a vitamin. Free Radic Biol Med 2024; 221:64-74. [PMID: 38754744 DOI: 10.1016/j.freeradbiomed.2024.05.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2024] [Revised: 05/13/2024] [Accepted: 05/14/2024] [Indexed: 05/18/2024]
Abstract
α-Tocopherol (α-T) is a vitamin, but the reasons for the α-T requirement are controversial. Given that α-T deficiency was first identified in embryos, we studied to the premier model of vertebrate embryo development, the zebrafish embryo. We developed an α-T-deficient diet for zebrafish and used fish consuming this diet to produce α-T deficient (E-) embryos. We showed that α-T deficiency causes increased lipid peroxidation, leading to metabolic dysregulation that impacts both biochemical and morphological changes at very early stages in development. These changes occur at an early developmental window, which takes place prior to an analogous time to when a human knows she is pregnant. We found that α-T limits the chain reaction of lipid peroxidation and protects metabolic pathways and integrated gene expression networks that control embryonic development. Importantly, not only is α-T critical during early development, but the neurodevelopmental process is highly dependent on α-T trafficking by the α-T transfer protein (TTPa). Data from both gene expression and evaluation of the metabolome in E- embryos suggest that the activity of the mechanistic Target of Rapamycin (mTOR) signaling pathway is dysregulated-mTOR is a master regulatory mechanism, which controls both metabolism and neurodevelopment. Our findings suggest that TTPa is needed not only for regulation of plasma α-T in adults but is a key regulator during embryogenesis.
Collapse
Affiliation(s)
- Maret G Traber
- Linus Pauling Institute, Oregon State University, Corvallis, 97330, OR, USA.
| |
Collapse
|
3
|
Bouranis JA, Ren Y, Beaver LM, Choi J, Wong CP, He L, Traber MG, Kelly J, Booth SL, Stevens JF, Fern XZ, Ho E. Identification of biological signatures of cruciferous vegetable consumption utilizing machine learning-based global untargeted stable isotope traced metabolomics. Front Nutr 2024; 11:1390223. [PMID: 39021604 PMCID: PMC11253721 DOI: 10.3389/fnut.2024.1390223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Accepted: 06/21/2024] [Indexed: 07/20/2024] Open
Abstract
In recent years there has been increased interest in identifying biological signatures of food consumption for use as biomarkers. Traditional metabolomics-based biomarker discovery approaches rely on multivariate statistics which cannot differentiate between host- and food-derived compounds, thus novel approaches to biomarker discovery are required to advance the field. To this aim, we have developed a new method that combines global untargeted stable isotope traced metabolomics and a machine learning approach to identify biological signatures of cruciferous vegetable consumption. Participants consumed a single serving of broccoli (n = 16), alfalfa sprouts (n = 16) or collard greens (n = 26) which contained either control unlabeled metabolites, or that were grown in the presence of deuterium-labeled water to intrinsically label metabolites. Mass spectrometry analysis indicated 133 metabolites in broccoli sprouts and 139 metabolites in the alfalfa sprouts were labeled with deuterium isotopes. Urine and plasma were collected and analyzed using untargeted metabolomics on an AB SCIEX TripleTOF 5,600 mass spectrometer. Global untargeted stable isotope tracing was completed using openly available software and a novel random forest machine learning based classifier. Among participants who consumed labeled broccoli sprouts or collard greens, 13 deuterium-incorporated metabolomic features were detected in urine representing 8 urine metabolites. Plasma was analyzed among collard green consumers and 11 labeled features were detected representing 5 plasma metabolites. These deuterium-labeled metabolites represent potential biological signatures of cruciferous vegetables consumption. Isoleucine, indole-3-acetic acid-N-O-glucuronide, dihydrosinapic acid were annotated as labeled compounds but other labeled metabolites could not be annotated. This work presents a novel framework for identifying biological signatures of food consumption for biomarker discovery. Additionally, this work presents novel applications of metabolomics and machine learning in the life sciences.
Collapse
Affiliation(s)
- John A. Bouranis
- School of Nutrition and Public Health, Oregon State University, Corvallis, OR, United States
- Linus Pauling Institute, Oregon State University, Corvallis, OR, United States
| | - Yijie Ren
- Department of Electrical Engineering and Computer Science, Oregon State University, Corvallis, OR, United States
| | - Laura M. Beaver
- School of Nutrition and Public Health, Oregon State University, Corvallis, OR, United States
- Linus Pauling Institute, Oregon State University, Corvallis, OR, United States
| | - Jaewoo Choi
- Linus Pauling Institute, Oregon State University, Corvallis, OR, United States
| | - Carmen P. Wong
- School of Nutrition and Public Health, Oregon State University, Corvallis, OR, United States
- Linus Pauling Institute, Oregon State University, Corvallis, OR, United States
| | - Lily He
- Linus Pauling Institute, Oregon State University, Corvallis, OR, United States
| | - Maret G. Traber
- School of Nutrition and Public Health, Oregon State University, Corvallis, OR, United States
- Linus Pauling Institute, Oregon State University, Corvallis, OR, United States
| | - Jennifer Kelly
- Jean Mayer USDA Human Nutrition Research Center on Aging, Tufts University, Boston, MA, United States
| | - Sarah L. Booth
- Jean Mayer USDA Human Nutrition Research Center on Aging, Tufts University, Boston, MA, United States
| | - Jan F. Stevens
- Linus Pauling Institute, Oregon State University, Corvallis, OR, United States
- Department of Pharmaceutical Sciences, Oregon State University, Corvallis, OR, United States
| | - Xiaoli Z. Fern
- Department of Electrical Engineering and Computer Science, Oregon State University, Corvallis, OR, United States
| | - Emily Ho
- School of Nutrition and Public Health, Oregon State University, Corvallis, OR, United States
- Linus Pauling Institute, Oregon State University, Corvallis, OR, United States
| |
Collapse
|
4
|
Henderson TD, Choi J, Leonard SW, Head B, Tanguay RL, Barton CL, Traber MG. Chronic Vitamin E Deficiency Dysregulates Purine, Phospholipid, and Amino Acid Metabolism in Aging Zebrafish Skeletal Muscle. Antioxidants (Basel) 2023; 12:1160. [PMID: 37371890 PMCID: PMC10294951 DOI: 10.3390/antiox12061160] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 05/22/2023] [Accepted: 05/24/2023] [Indexed: 06/29/2023] Open
Abstract
Muscle wasting occurs with aging and may be a result of oxidative stress damage and potentially inadequate protection by lipophilic antioxidants, such as vitamin E. Previous studies have shown muscular abnormalities and behavioral defects in vitamin E-deficient adult zebrafish. To test the hypothesis that there is an interaction between muscle degeneration caused by aging and oxidative damage caused by vitamin E deficiency, we evaluated long-term vitamin E deficiency in the skeletal muscle of aging zebrafish using metabolomics. Zebrafish (55 days old) were fed E+ and E- diets for 12 or 18 months. Then, skeletal muscle samples were analyzed using UPLC-MS/MS. Data were analyzed to highlight metabolite and pathway changes seen with either aging or vitamin E status or both. We found that aging altered purines, various amino acids, and DHA-containing phospholipids. Vitamin E deficiency at 18 months was associated with changes in amino acid metabolism, specifically tryptophan pathways, systemic changes in the regulation of purine metabolism, and DHA-containing phospholipids. In sum, while both aging and induced vitamin E deficiency did have some overlap in altered and potentially dysregulated metabolic pathways, each factor also presented unique alterations, which require further study with more confirmatory approaches.
Collapse
Affiliation(s)
- Trent D. Henderson
- Linus Pauling Institute, College of Public Health and Human Sciences, Oregon State University, Corvallis, OR 97331, USA;
| | - Jaewoo Choi
- Linus Pauling Institute, Oregon State University, Corvallis, OR 97331, USA; (J.C.); (S.W.L.); (B.H.)
| | - Scott W. Leonard
- Linus Pauling Institute, Oregon State University, Corvallis, OR 97331, USA; (J.C.); (S.W.L.); (B.H.)
| | - Brian Head
- Linus Pauling Institute, Oregon State University, Corvallis, OR 97331, USA; (J.C.); (S.W.L.); (B.H.)
| | - Robyn L. Tanguay
- Sinnhuber Aquatic Research Laboratory, Environmental Health Sciences Center, Oregon State University, Corvallis, OR 97331, USA; (R.L.T.)
| | - Carrie L. Barton
- Sinnhuber Aquatic Research Laboratory, Environmental Health Sciences Center, Oregon State University, Corvallis, OR 97331, USA; (R.L.T.)
| | - Maret G. Traber
- Linus Pauling Institute, College of Public Health and Human Sciences, Oregon State University, Corvallis, OR 97331, USA;
| |
Collapse
|
5
|
Bouranis JA, Beaver LM, Jiang D, Choi J, Wong CP, Davis EW, Williams DE, Sharpton TJ, Stevens JF, Ho E. Interplay between Cruciferous Vegetables and the Gut Microbiome: A Multi-Omic Approach. Nutrients 2022; 15:nu15010042. [PMID: 36615700 PMCID: PMC9824405 DOI: 10.3390/nu15010042] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 12/14/2022] [Accepted: 12/15/2022] [Indexed: 12/24/2022] Open
Abstract
Brassica vegetables contain a multitude of bioactive compounds that prevent and suppress cancer and promote health. Evidence suggests that the gut microbiome may be essential in the production of these compounds; however, the relationship between specific microbes and the abundance of metabolites produced during cruciferous vegetable digestion are still unclear. We utilized an ex vivo human fecal incubation model with in vitro digested broccoli sprouts (Broc), Brussels sprouts (Brus), a combination of the two vegetables (Combo), or a negative control (NC) to investigate microbial metabolites of cruciferous vegetables. We conducted untargeted metabolomics on the fecal cultures by LC-MS/MS and completed 16S rRNA gene sequencing. We identified 72 microbial genera in our samples, 29 of which were significantly differentially abundant between treatment groups. A total of 4499 metabolomic features were found to be significantly different between treatment groups (q ≤ 0.05, fold change > 2). Chemical enrichment analysis revealed 45 classes of compounds to be significantly enriched by brassicas, including long-chain fatty acids, coumaric acids, and peptides. Multi-block PLS-DA and a filtering method were used to identify microbe−metabolite interactions. We identified 373 metabolites from brassica, which had strong relationships with microbes, such as members of the family Clostridiaceae and genus Intestinibacter, that may be microbially derived.
Collapse
Affiliation(s)
- John A. Bouranis
- School of Biological and Population Health Sciences, Oregon State University, Corvallis, OR 97331, USA
- Linus Pauling Institute, Oregon State University, Corvallis, OR 97331, USA
| | - Laura M. Beaver
- School of Biological and Population Health Sciences, Oregon State University, Corvallis, OR 97331, USA
- Linus Pauling Institute, Oregon State University, Corvallis, OR 97331, USA
| | - Duo Jiang
- Department of Statistics, Oregon State University, Corvallis, OR 97331, USA
| | - Jaewoo Choi
- Linus Pauling Institute, Oregon State University, Corvallis, OR 97331, USA
| | - Carmen P. Wong
- School of Biological and Population Health Sciences, Oregon State University, Corvallis, OR 97331, USA
- Linus Pauling Institute, Oregon State University, Corvallis, OR 97331, USA
| | - Edward W. Davis
- Linus Pauling Institute, Oregon State University, Corvallis, OR 97331, USA
- Center for Quantitative Life Sciences, Oregon State University, Corvallis, OR 97331, USA
| | - David E. Williams
- Linus Pauling Institute, Oregon State University, Corvallis, OR 97331, USA
- Department of Environmental and Molecular Toxicology, Oregon State University, Corvallis, OR 97331, USA
| | - Thomas J. Sharpton
- Department of Statistics, Oregon State University, Corvallis, OR 97331, USA
- Department of Microbiology, Oregon State University, Corvallis, OR 97331, USA
| | - Jan F. Stevens
- Linus Pauling Institute, Oregon State University, Corvallis, OR 97331, USA
- Department of Pharmaceutical Sciences, Oregon State University, Corvallis, OR 97331, USA
| | - Emily Ho
- School of Biological and Population Health Sciences, Oregon State University, Corvallis, OR 97331, USA
- Linus Pauling Institute, Oregon State University, Corvallis, OR 97331, USA
- Correspondence:
| |
Collapse
|
6
|
Song S, Lou Y, Mao Y, Wen X, Fan M, He Z, Shen Y, Wen C, Shao T. Alteration of Gut Microbiome and Correlated Amino Acid Metabolism Contribute to Hyperuricemia and Th17-Driven Inflammation in Uox-KO Mice. Front Immunol 2022; 13:804306. [PMID: 35197978 PMCID: PMC8858814 DOI: 10.3389/fimmu.2022.804306] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Accepted: 01/12/2022] [Indexed: 12/11/2022] Open
Abstract
Although gut dysbiosis had been demonstrated to be an important factor affecting hyperuricemia (HUA) and gout, little is known for its potential mechanistic connections. In this study, Uox-KO mice model that with spontaneously developed pronounced HUA and urate nephropathy was used to explore the pathophysiologic mechanism of microbiota alterations in HUA and gout with integrated multi-omics analysis. 16S rRNA gene sequencing was performed to characterize the characteristic bacteria, and untargeted LC/MS analysis was applied to reveal the featured metabolites. Our results showed there was a significant shift in gut microbiota composition and function in Uox-KO mice compared to WT mice and apparent metabolomics differences between the two groups. Among them, amino acids metabolism appears to play a critical role. Correlation analysis further revealed that the characteristic metabolites were strongly influenced by the discrepant bacterial genera. Furthermore, impairment of intestinal integrity and profound alterations in the profile of solute carrier family resulted in dysregulation of amino acids transportation, which subsequently impacted serum uric acid level and CD4+ Th17 driven inflammation. Together, these data indicate that gut dysbiosis promotes purine metabolism disorder and inflammation in Uox-KO mice. Remodeling the gut microbiota is a promising strategy to combat HUA and gout.
Collapse
Affiliation(s)
- Siyue Song
- College of Basic Medical Sciences, Zhejiang Chinese Medical University, Hangzhou, China
| | - Yu Lou
- College of Basic Medical Sciences, Zhejiang Chinese Medical University, Hangzhou, China
| | - Yingying Mao
- School of Public Health, Zhejiang Chinese Medical University, Hangzhou, China
| | - Xianghui Wen
- College of Basic Medical Sciences, Zhejiang Chinese Medical University, Hangzhou, China
| | - Moqi Fan
- College of Basic Medical Sciences, Zhejiang Chinese Medical University, Hangzhou, China
| | - Zhixing He
- College of Basic Medical Sciences, Zhejiang Chinese Medical University, Hangzhou, China
| | - Yang Shen
- The Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, China
| | - Chengping Wen
- College of Basic Medical Sciences, Zhejiang Chinese Medical University, Hangzhou, China
- *Correspondence: Chengping Wen, ; Tiejuan Shao,
| | - Tiejuan Shao
- College of Basic Medical Sciences, Zhejiang Chinese Medical University, Hangzhou, China
- *Correspondence: Chengping Wen, ; Tiejuan Shao,
| |
Collapse
|
7
|
Watt AT, Head B, Leonard SW, Tanguay RL, Traber MG. Gene Expression of CRAL_TRIO Family Proteins modulated by Vitamin E Deficiency in Zebrafish (Danio Rerio). J Nutr Biochem 2021; 97:108801. [PMID: 34119630 PMCID: PMC10129037 DOI: 10.1016/j.jnutbio.2021.108801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 04/19/2021] [Accepted: 06/01/2021] [Indexed: 11/15/2022]
Abstract
An evaluation of the impact of vitamin E deficiency on expression of the alpha-tocopherol transfer protein (α-TTP) and related CRAL_TRIO genes was undertaken using livers from adult zebrafish based on the hypothesis that increased lipid peroxidation would modulate gene expression. Zebrafish were fed either a vitamin E sufficient (E+) or deficient (E-) diet for 9 months, then fish were euthanized, and livers were harvested. Livers from the E+ relative to E- fish contained 40-times more α-tocopherol (P <0.0001) and one fourth the malondialdehyde (P = 0.0153). RNA was extracted from E+ and E- livers, then subject to evaluation of gene expression of ttpa and other genes of the CRAL_TRIO family, genes of antioxidant markers, and genes related to lipid metabolism. Ttpa expression was not altered by vitamin E status. However, one member of the CRAL_TRIO family, tyrosine-protein phosphatase non-receptor type 9 gene (ptpn9a), showed a 2.4-fold increase (P = 0.029) in E- relative to E+ livers. Further, we identified that the gene for choline kinase alpha (chka) showed a 3.0-fold increase (P = 0.010) in E- livers. These outcomes are consistent with our previous findings that show vitamin E deficiency increased lipid peroxidation causing increases in phospholipid turnover.
Collapse
Affiliation(s)
- Alexander T Watt
- Linus Pauling Institute, Oregon State University, Corvallis, Oregon; Integrative Biology Program, Oregon State University, Corvallis, Oregon
| | - Brian Head
- Linus Pauling Institute, Oregon State University, Corvallis, Oregon; Molecular and Cell Biology Program
| | - Scott W Leonard
- Linus Pauling Institute, Oregon State University, Corvallis, Oregon
| | - Robyn L Tanguay
- Department of Environmental and Molecular Toxicology, Oregon State University, Corvallis, Oregon
| | - Maret G Traber
- Linus Pauling Institute, Oregon State University, Corvallis, Oregon; School of Biological and Population Health Sciences, Oregon State University, Corvallis, Oregon.
| |
Collapse
|
8
|
In ovo feeding of vitamin C regulates splenic development through purine nucleotide metabolism and induction of apoptosis in broiler chickens. Br J Nutr 2021; 126:652-662. [PMID: 33222701 DOI: 10.1017/s0007114520004717] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Nutrition in early life has a long-term influence on later health. In order to the explore effects of in ovo feeding (IOF) of vitamin C on splenic development, splenic metabolism and apoptosis were detected in embryo, adult chickens and in vitro. A total of 360 fertile eggs were selected and randomly assigned to control (CON) and vitamin C (VC) groups which were injected with saline and vitamin C on embryonic day 11, respectively. Functional enrichment of differentially expressed genes by transcriptome on embryonic day 19 suggested that purine nucleotide metabolism might be a potential pathway for the IOF of vitamin C to regulate spleen development. Additionally, the IOF of vitamin C significantly increased splenic vitamin C content on post-hatch day 21. Meanwhile, the splenic expression of adenosine deaminase, serine/threonine kinase 1 and proliferating cell nuclear antigen was down-regulated, whereas the expression of cysteinyl aspartate specific proteinase 9 was up-regulated in the VC group. On post-hatch day 42, the IOF of vitamin C significantly down-regulated the splenic expression of B-cell lymphoma 2 and increased the mRNA level of cysteinyl aspartate specific proteinase 9. The IOF of vitamin C could regulate the expression of genes related to adenylate metabolism and increased the apoptosis rate in vitro, which is consistent with the result in vivo. In conclusion, the IOF of vitamin C regulated splenic development and maturation by affecting purine nucleotide metabolism pathway and promoting apoptosis.
Collapse
|
9
|
Shanaka KASN, Jung S, Janson ND, Jayasingha JRP, Madushani KP, Kim MJ, Lee J. Growth and Antioxidant-Related Effects of the Reestablished Ascorbic Acid Pathway in Zebrafish ( Danio rerio) by Genomic Integration of L-Gulonolactone Oxidase From Cloudy Catshark ( Scyliorhinus torazame). Front Physiol 2021; 12:685595. [PMID: 34290620 PMCID: PMC8287572 DOI: 10.3389/fphys.2021.685595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Accepted: 05/28/2021] [Indexed: 11/22/2022] Open
Abstract
Loss of L-gulonolactone oxidase (GULO), which catalyzes the last step of the ascorbic acid (AA) biosynthesis pathway, results in a complete lack of AA in several Osteichthyes fish species, including zebrafish. In this study, sGULO, the active GULO gene from cloudy catshark (Scyliorhinus torazame) was cloned into zebrafish using the Gateway cloning method. The resulting Tg(b-actin:sGULO:mCherry) fish were analyzed for the effects of a reestablished AA pathway. Fluorescent microscopy and PCR were used to analyze the integration of the construct into the zebrafish genome. Catalytic activity of sGULO, AA production, growth-related characteristics, and gene expression were investigated to evaluate the effects of AA production in Tg fish. The mCherry fluorescent protein indicated the proper integration and expression of the sGULO construct in zebrafish. The sGULO gene was ubiquitously expressed in all the studied tissues and the enzyme activity indicated an increased AA production in Tg fish. The growth of Tg fish was also increased, and antioxidant system analysis suggests that reactive oxygen species production was reduced in Tg fish compared with wild type. Expression of the AA transporter slc23a1 was significantly downregulated in Tg homozygous fish. These results collectively indicate the effects of reestablished AA synthesis in zebrafish.
Collapse
Affiliation(s)
- K A S N Shanaka
- Department of Marine Life Sciences & Fish Vaccine Research Center, Jeju National University, Jeju, South Korea.,Marine Science Institute, Jeju National University, Jeju, South Korea
| | - Sumi Jung
- Department of Marine Life Sciences & Fish Vaccine Research Center, Jeju National University, Jeju, South Korea.,Marine Science Institute, Jeju National University, Jeju, South Korea
| | - N D Janson
- Department of Marine Life Sciences & Fish Vaccine Research Center, Jeju National University, Jeju, South Korea.,Marine Science Institute, Jeju National University, Jeju, South Korea
| | - J R P Jayasingha
- Department of Marine Life Sciences & Fish Vaccine Research Center, Jeju National University, Jeju, South Korea.,Marine Science Institute, Jeju National University, Jeju, South Korea
| | - K P Madushani
- Department of Marine Life Sciences & Fish Vaccine Research Center, Jeju National University, Jeju, South Korea.,Marine Science Institute, Jeju National University, Jeju, South Korea
| | - Myoung-Jin Kim
- Marine Science Institute, Jeju National University, Jeju, South Korea
| | - Jehee Lee
- Department of Marine Life Sciences & Fish Vaccine Research Center, Jeju National University, Jeju, South Korea.,Marine Science Institute, Jeju National University, Jeju, South Korea
| |
Collapse
|
10
|
RedEfish: Generation of the Polycistronic mScarlet: GSG-T2A: Ttpa Zebrafish Line. Antioxidants (Basel) 2021; 10:antiox10060965. [PMID: 34208660 PMCID: PMC8235169 DOI: 10.3390/antiox10060965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Accepted: 06/10/2021] [Indexed: 11/17/2022] Open
Abstract
The vitamin E regulatory protein, the alpha-tocopherol transfer protein (Ttpa), is necessary for zebrafish embryo development. To evaluate zebrafish embryo Ttpa function, we generated a fluorescent-tagged zebrafish transgenic line using CRISPR-Cas9 technology. One-cell stage embryos (from Casper (colorless) zebrafish adults) were injected the mScarlet coding sequence in combination with cas9 protein complexed to single guide RNA molecule targeting 5′ of the ttpa genomic region. Embryos were genotyped for proper insertion of the mScarlet coding sequence, raised to adulthood and successively in-crossed to produce the homozygote RedEfish (mScarlet: GSG-T2A: Ttpa). RedEfish were characterized by in vivo fluorescence detection at 1, 7 and 14 days post-fertilization (dpf). Fluorescent color was detectable in RedEfish embryos at 1 dpf; it was distributed throughout the developing brain, posterior tailbud and yolk sac. At 7 dpf, the RedEfish was identifiable by fluorescence in olfactory pits, gill arches, pectoral fins, posterior tail region and residual yolk sac. Subsequently (14 dpf), the mScarlet protein was found in olfactory pits, distributed throughout the digestive tract, along the lateral line and especially in caudal vertebrae. No adverse morphological outcomes or developmental delays were observed. The RedEfish will be a powerful model to study Ttpa function during embryo development.
Collapse
|
11
|
Abstract
Vitamin E, discovered in 1922, is essential for pregnant rats to carry their babies to term. However, 100 years later, the molecular mechanisms for the vitamin E requirement during embryogenesis remain unknown. Vitamin E's role during pregnancy has been difficult to study and thus, a vitamin E-deficient (E-) zebrafish embryo model was developed. Vitamin E deficiency in zebrafish embryos initiates lipid peroxidation, depletes a specific phospholipid (DHA-phosphatidyl choline), causes secondary deficiencies of choline, betaine and critical thiols (such as glutathione), and dysregulates energy metabolism. Vitamin E deficiency not only distorts the carefully programmed development of the nervous system, but it leads to defects in several developing organs. Both the α-tocopherol transfer protein and vitamin E are necessary for embryonic development, neurogenesis and cognition in this model and likely in human embryos. Elucidation of the control mechanisms for the cellular and metabolic pathways involved in the molecular dysregulation caused by vitamin E deficiency will lead to important insights into abnormal neurogenesis and embryonic malformations.
Collapse
|
12
|
Tang D, Geng F, Yu C, Zhang R. Recent Application of Zebrafish Models in Atherosclerosis Research. Front Cell Dev Biol 2021; 9:643697. [PMID: 33718384 PMCID: PMC7947229 DOI: 10.3389/fcell.2021.643697] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Accepted: 02/05/2021] [Indexed: 12/13/2022] Open
Abstract
Atherosclerotic cardiovascular disease is one of the leading causes of death worldwide. Establishing animal models of atherosclerosis is of great benefit for studying its complicated pathogenesis and screening and evaluating related drugs. Although researchers have generated a variety of models for atherosclerosis study in rabbits, mice and rats, the limitations of these models make it difficult to monitor the development of atherosclerosis, and these models are unsuitable for large scale screening of potential therapeutic targets. On the contrast, zebrafish can fulfill these purposes thanks to their fecundity, rapid development ex utero, embryonic transparency, and conserved lipid metabolism process. Thus, zebrafish have become a popular alternative animal model for atherosclerosis research. In this mini review, we summarize different zebrafish models used to study atherosclerosis, focusing on the latest applications of these models to the dynamic monitoring of atherosclerosis progression, mechanistic study of therapeutic intervention and drug screening, and assessment of the impacts of other risk factors.
Collapse
Affiliation(s)
- Dandan Tang
- School of Basic Medical Sciences, Wuhan University, Wuhan, China
| | - Fang Geng
- School of Life Sciences, Fudan University, Shanghai, China
| | - Chunxiao Yu
- School of Basic Medical Sciences, Wuhan University, Wuhan, China
| | - Ruilin Zhang
- School of Basic Medical Sciences, Wuhan University, Wuhan, China
| |
Collapse
|
13
|
Rodrigues RR, Gurung M, Li Z, García-Jaramillo M, Greer R, Gaulke C, Bauchinger F, You H, Pederson JW, Vasquez-Perez S, White KD, Frink B, Philmus B, Jump DB, Trinchieri G, Berry D, Sharpton TJ, Dzutsev A, Morgun A, Shulzhenko N. Transkingdom interactions between Lactobacilli and hepatic mitochondria attenuate western diet-induced diabetes. Nat Commun 2021; 12:101. [PMID: 33397942 PMCID: PMC7782853 DOI: 10.1038/s41467-020-20313-x] [Citation(s) in RCA: 81] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Accepted: 11/09/2020] [Indexed: 02/06/2023] Open
Abstract
Western diet (WD) is one of the major culprits of metabolic disease including type 2 diabetes (T2D) with gut microbiota playing an important role in modulating effects of the diet. Herein, we use a data-driven approach (Transkingdom Network analysis) to model host-microbiome interactions under WD to infer which members of microbiota contribute to the altered host metabolism. Interrogation of this network pointed to taxa with potential beneficial or harmful effects on host's metabolism. We then validate the functional role of the predicted bacteria in regulating metabolism and show that they act via different host pathways. Our gene expression and electron microscopy studies show that two species from Lactobacillus genus act upon mitochondria in the liver leading to the improvement of lipid metabolism. Metabolomics analyses revealed that reduced glutathione may mediate these effects. Our study identifies potential probiotic strains for T2D and provides important insights into mechanisms of their action.
Collapse
Affiliation(s)
| | - Manoj Gurung
- Veterinary Medicine, Oregon State University, Corvallis, OR, USA
| | - Zhipeng Li
- Veterinary Medicine, Oregon State University, Corvallis, OR, USA
| | | | - Renee Greer
- Veterinary Medicine, Oregon State University, Corvallis, OR, USA
| | | | - Franziska Bauchinger
- Department of Microbiology and Ecosystem Science, University of Vienna, Vienna, Austria
| | - Hyekyoung You
- Veterinary Medicine, Oregon State University, Corvallis, OR, USA
| | - Jacob W Pederson
- Veterinary Medicine, Oregon State University, Corvallis, OR, USA
| | | | - Kimberly D White
- Veterinary Medicine, Oregon State University, Corvallis, OR, USA
| | - Briana Frink
- Veterinary Medicine, Oregon State University, Corvallis, OR, USA
| | - Benjamin Philmus
- College of Pharmacy, Oregon State University, Corvallis, OR, USA
| | - Donald B Jump
- College of Public Health and Human Sciences, Oregon State University, Corvallis, OR, USA
| | - Giorgio Trinchieri
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - David Berry
- Department of Microbiology and Ecosystem Science, University of Vienna, Vienna, Austria
| | | | - Amiran Dzutsev
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Andrey Morgun
- College of Pharmacy, Oregon State University, Corvallis, OR, USA.
| | | |
Collapse
|
14
|
Nitrate and nitrite exposure leads to mild anxiogenic-like behavior and alters brain metabolomic profile in zebrafish. PLoS One 2020; 15:e0240070. [PMID: 33382700 PMCID: PMC7774831 DOI: 10.1371/journal.pone.0240070] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Accepted: 12/11/2020] [Indexed: 02/06/2023] Open
Abstract
Dietary nitrate lowers blood pressure and improves athletic performance in humans, yet data supporting observations that it may increase cerebral blood flow and improve cognitive performance are mixed. We tested the hypothesis that nitrate and nitrite treatment would improve indicators of learning and cognitive performance in a zebrafish (Danio rerio) model. We utilized targeted and untargeted liquid chromatography-tandem mass spectrometry (LC-MS/MS) analysis to examine the extent to which treatment resulted in changes in nitrate or nitrite concentrations in the brain and altered the brain metabolome. Fish were exposed to sodium nitrate (606.9 mg/L), sodium nitrite (19.5 mg/L), or control water for 2–4 weeks and free swim, startle response, and shuttle box assays were performed. Nitrate and nitrite treatment did not change fish weight, length, predator avoidance, or distance and velocity traveled in an unstressed environment. Nitrate- and nitrite-treated fish initially experienced more negative reinforcement and increased time to decision in the shuttle box assay, which is consistent with a decrease in associative learning or executive function however, over multiple trials, all treatment groups demonstrated behaviors associated with learning. Nitrate and nitrite treatment was associated with mild anxiogenic-like behavior but did not alter epinephrine, norepinephrine or dopamine levels. Targeted metabolomics analysis revealed no significant increase in brain nitrate or nitrite concentrations with treatment. Untargeted metabolomics analysis found 47 metabolites whose abundance was significantly altered in the brain with nitrate and nitrite treatment. Overall, the depletion in brain metabolites is plausibly associated with the regulation of neuronal activity including statistically significant reductions in the inhibitory neurotransmitter γ-aminobutyric acid (GABA; 18–19%), and its precursor, glutamine (17–22%). Nitrate treatment caused significant depletion in the brain concentration of fatty acids including linoleic acid (LA) by 50% and arachidonic acid (ARA) by 80%; nitrite treatment caused depletion of LA by ~90% and ARA by 60%, change which could alter the function of dopaminergic neurons and affect behavior. Nitrate and nitrite treatment did not adversely affect multiple parameters of zebrafish health. It is plausible that indirect NO-mediated mechanisms may be responsible for the nitrate and nitrite-mediated effects on the brain metabolome and behavior in zebrafish.
Collapse
|
15
|
Lebedeva L, Zhumabayeva B, Gebauer T, Kisselev I, Aitasheva Z. Zebrafish ( Danio rerio) as a Model for Understanding the Process of Caudal Fin Regeneration. Zebrafish 2020; 17:359-372. [PMID: 33259770 DOI: 10.1089/zeb.2020.1926] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
After its introduction for scientific investigation in the 1950s, the cypriniform zebrafish, Danio rerio, has become a valuable model for the study of regenerative processes and mechanisms. Zebrafish exhibit epimorphic regeneration, in which a nondifferentiated cell mass formed after amputation is able to fully regenerate lost tissue such as limbs, heart muscle, brain, retina, and spinal cord. The process of limb regeneration in zebrafish comprises several stages characterized by the activation of specific signaling pathways and gene expression. We review current research on key factors in limb regeneration using zebrafish as a model.
Collapse
Affiliation(s)
- Lina Lebedeva
- Department of Molecular Biology and Genetics, Faculty of Biology and Biotechnology, al-Farabi Kazakh National University, Almaty, The Republic of Kazakhstan
| | - Beibitgul Zhumabayeva
- Department of Molecular Biology and Genetics, Faculty of Biology and Biotechnology, al-Farabi Kazakh National University, Almaty, The Republic of Kazakhstan
| | - Tatyana Gebauer
- South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Institute of Aquaculture and Protection of Waters, Faculty of Fisheries and Protection of Waters, University of South Bohemia in Ceske Budejovice, České Budějovice, Czech Republic
| | - Ilya Kisselev
- Institute of General Genetics and Cytology, Almaty, The Republic of Kazakhstan
| | - Zaure Aitasheva
- Department of Molecular Biology and Genetics, Faculty of Biology and Biotechnology, al-Farabi Kazakh National University, Almaty, The Republic of Kazakhstan
| |
Collapse
|
16
|
Lee HK, Kim K, Lee J, Lee J, Lee J, Kim S, Lee SE, Kim JH. Targeted toxicometabolomics of endosulfan sulfate in adult zebrafish (Danio rerio) using GC-MS/MS in multiple reaction monitoring mode. JOURNAL OF HAZARDOUS MATERIALS 2020; 389:122056. [PMID: 32000124 DOI: 10.1016/j.jhazmat.2020.122056] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Revised: 12/16/2019] [Accepted: 01/08/2020] [Indexed: 06/10/2023]
Abstract
Endosulfan sulfate is a major oxidative metabolite of the chlorinated insecticide endosulfan. In this study, a targeted metabolomics approach was used to investigate the toxic mechanisms of endosulfan sulfate in adult zebrafish using the multiple reaction monitoring mode of a GC-MS/MS. The LC50 of endosulfan sulfate in adult zebrafish was determined and then zebrafish were exposed to endosulfan sulfate at one-tenth the LC50 (0.1LC50) or the LC50 for 24 and 48 h. After exposure, the fish were extracted, derivatized and analyzed by GC-MS/MS for 379 metabolites to identify 170 metabolites. Three experimental groups (control, 0.1LC50 and LC50) were clearly separated in PLS-DA score plots. Based on the VIP, ANOVA, and fold change results, 40 metabolites were selected as biomarkers. Metabolic pathways associated with those metabolites were identified using MetaboAnalyst 4.0 as follows: aminoacyl-tRNA biosynthesis, valine/leucine/isoleucine biosynthesis, citrate cycle, glycerolipid metabolism, and arginine/proline metabolism. Gene expression studies confirmed the activation of citrate cycle and glycerolipids metabolism. MDA levels of the exposed group significantly increased in oxidative toxicity assay tests. Such significant perturbations of important metabolites within key biochemical pathways must result in biologically hazardous effects in zebrafish.
Collapse
Affiliation(s)
- Hwa-Kyung Lee
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul, 08826, Republic of Korea
| | - Kyeongnam Kim
- School of Applied Biosciences, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Junghak Lee
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul, 08826, Republic of Korea
| | - Jonghwa Lee
- Department of Veterinary and Animal Sciences, University of Massachusetts, Amherst, MA, 01003, USA
| | - Jiho Lee
- Environmental Medical Center, Korea Conformity Laboratories, Incheon, 21999, Republic of Korea
| | - Sooyeon Kim
- Gyeongnam Department of Environmental Toxicology and Chemistry, Korea Institute of Toxicology, Gyeongsangnam-do, 52834, Republic of Korea
| | - Sung-Eun Lee
- School of Applied Biosciences, Kyungpook National University, Daegu, 41566, Republic of Korea.
| | - Jeong-Han Kim
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul, 08826, Republic of Korea.
| |
Collapse
|
17
|
Alcazar Magana A, Reed RL, Koluda R, Miranda CL, Maier CS, Stevens JF. Vitamin C Activates the Folate-Mediated One-Carbon Cycle in C2C12 Myoblasts. Antioxidants (Basel) 2020; 9:antiox9030217. [PMID: 32150984 PMCID: PMC7139526 DOI: 10.3390/antiox9030217] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Revised: 03/04/2020] [Accepted: 03/04/2020] [Indexed: 12/22/2022] Open
Abstract
Vitamin C (L-ascorbic acid, AA) is an essential cellular antioxidant and cofactor for several α-ketoglutarate-dependent dioxygenases. As an antioxidant, AA interacts with vitamin E to control oxidative stress. While several reports suggest an interaction of AA with folate (vitamin B9) in animals and humans, little is known about the nature of the interaction and the underlying molecular mechanisms at the cellular level. We used an untargeted metabolomics approach to study the impact of AA on the metabolome of C2C12 myoblast cells. Compared to untreated cells, treatment of C2C12 cells with AA at 100 µM resulted in enhanced concentrations of folic acid (2.5-fold) and 5-methyl-tetrahydrofolate (5-methyl-THF, 10-fold increase) whereas the relative concentrations of 10-formyl-tetrahydrofolate decreased by >90% upon AA pretreatment, indicative of increased utilization for the biosynthesis of active THF metabolites. The impact of AA on the folate-mediated one-carbon cycle further manifested itself as an increase in the levels of methionine, whose formation from homocysteine is 5-methyl-THF dependent, and an increase in thymidine, whose formation from deoxyuridine monophosphate (dUMP) is dependent on 5,10-methylene-THF. These findings shed new light on the interaction of AA with the folate-mediated one-carbon cycle and partially explain clinical findings that AA supplementation enhances erythrocyte folate status and that it may decrease serum levels of homocysteine, which is considered as a biomarker of cardiovascular disease risk.
Collapse
Affiliation(s)
- Armando Alcazar Magana
- Department of Chemistry, Oregon State University, 153 Gilbert Hall, Corvallis, OR 97331, USA; (A.A.M.); (R.K.); (C.S.M.)
- Linus Pauling Institute, Oregon State University, 2900 SW Campus way, Corvallis, OR 97331, USA; (R.L.R.); (C.L.M.)
| | - Ralph L. Reed
- Linus Pauling Institute, Oregon State University, 2900 SW Campus way, Corvallis, OR 97331, USA; (R.L.R.); (C.L.M.)
- Department of Pharmaceutical Sciences, Oregon State University, 1601 SW Jefferson Way, Corvallis, OR 97331, USA
| | - Rony Koluda
- Department of Chemistry, Oregon State University, 153 Gilbert Hall, Corvallis, OR 97331, USA; (A.A.M.); (R.K.); (C.S.M.)
| | - Cristobal L. Miranda
- Linus Pauling Institute, Oregon State University, 2900 SW Campus way, Corvallis, OR 97331, USA; (R.L.R.); (C.L.M.)
- Department of Pharmaceutical Sciences, Oregon State University, 1601 SW Jefferson Way, Corvallis, OR 97331, USA
| | - Claudia S. Maier
- Department of Chemistry, Oregon State University, 153 Gilbert Hall, Corvallis, OR 97331, USA; (A.A.M.); (R.K.); (C.S.M.)
- Linus Pauling Institute, Oregon State University, 2900 SW Campus way, Corvallis, OR 97331, USA; (R.L.R.); (C.L.M.)
| | - Jan F. Stevens
- Linus Pauling Institute, Oregon State University, 2900 SW Campus way, Corvallis, OR 97331, USA; (R.L.R.); (C.L.M.)
- Department of Pharmaceutical Sciences, Oregon State University, 1601 SW Jefferson Way, Corvallis, OR 97331, USA
- Correspondence: ; Tel.: +1-541-737-9534
| |
Collapse
|
18
|
Xiong XY, Liang J, Guo SY, Dai MZ, Zhou JL, Zhang Y, Liu Y. A natural complex product Yaocha reduces uric acid level in a live zebrafish model. J Pharmacol Toxicol Methods 2020; 102:106681. [DOI: 10.1016/j.vascn.2020.106681] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 08/08/2019] [Accepted: 02/07/2020] [Indexed: 12/22/2022]
|
19
|
Williams MB, Watts SA. Current basis and future directions of zebrafish nutrigenomics. GENES AND NUTRITION 2019; 14:34. [PMID: 31890052 PMCID: PMC6935144 DOI: 10.1186/s12263-019-0658-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Accepted: 12/16/2019] [Indexed: 12/19/2022]
Abstract
This review investigates the current state of nutrigenomics in the zebrafish animal models. The zebrafish animal model has been used extensively in the study of disease onset and progression and associated molecular changes. In this review, we provide a synopsis of nutrigenomics using the zebrafish animal model. Obesity and dyslipidemia studies describe the genomics of dietary-induced obesity in relation to high-fat/high-calorie diets. Inflammation and cardiovascular studies describe dietary effects on the expression of acute inflammatory markers and resulting chronic inflammatory issues including atherosclerosis. We also evaluated the genomic response to bioactive dietary compounds associated with metabolic disorders. Carbohydrate metabolism and β-cell function studies describe the impacts of high-carbohydrate dietary challenges on nutritional programming. We also report tumorigenesis in relation to dietary carcinogen exposure studies that can result in permanent genomic changes. Vitamin and mineral deficiency studies demonstrate transgenerational genomic impacts of micronutrients in the diet and temporal expression changes. Circadian rhythm studies describe the relation between metabolism and natural temporal cycles of gene expression that impacts health. Bone formation studies describe the role of dietary composition that influences bone reabsorption regulation. Finally, this review provides future directions in the use of the zebrafish model for nutrigenomic and nutrigenetic research.
Collapse
Affiliation(s)
- Michael B Williams
- Department of Biology, University of Alabama at Birmingham, Birmingham, AL 35294 USA
| | - Stephen A Watts
- Department of Biology, University of Alabama at Birmingham, Birmingham, AL 35294 USA
| |
Collapse
|
20
|
Axton ER, Beaver LM, St. Mary L, Truong L, Logan CR, Spagnoli S, Prater MC, Keller RM, Garcia-Jaramillo M, Ehrlicher SE, Stierwalt HD, Newsom SA, Robinson MM, Tanguay RL, Stevens JF, Hord NG. Treatment with Nitrate, but Not Nitrite, Lowers the Oxygen Cost of Exercise and Decreases Glycolytic Intermediates While Increasing Fatty Acid Metabolites in Exercised Zebrafish. J Nutr 2019; 149:2120-2132. [PMID: 31495890 PMCID: PMC6887948 DOI: 10.1093/jn/nxz202] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Revised: 04/22/2019] [Accepted: 07/25/2019] [Indexed: 01/13/2023] Open
Abstract
BACKGROUND Dietary nitrate improves exercise performance by reducing the oxygen cost of exercise, although the mechanisms responsible are not fully understood. OBJECTIVES We tested the hypothesis that nitrate and nitrite treatment would lower the oxygen cost of exercise by improving mitochondrial function and stimulating changes in the availability of metabolic fuels for energy production. METHODS We treated 9-mo-old zebrafish with nitrate (sodium nitrate, 606.9 mg/L), nitrite (sodium nitrite, 19.5 mg/L), or control (no treatment) water for 21 d. We measured oxygen consumption during a 2-h, strenuous exercise test; assessed the respiration of skeletal muscle mitochondria; and performed untargeted metabolomics on treated fish, with and without exercise. RESULTS Nitrate and nitrite treatment increased blood nitrate and nitrite levels. Nitrate treatment significantly lowered the oxygen cost of exercise, as compared with pretreatment values. In contrast, nitrite treatment significantly increased oxygen consumption with exercise. Nitrate and nitrite treatments did not change mitochondrial function measured ex vivo, but significantly increased the abundances of ATP, ADP, lactate, glycolytic intermediates (e.g., fructose 1,6-bisphosphate), tricarboxylic acid (TCA) cycle intermediates (e.g., succinate), and ketone bodies (e.g., β-hydroxybutyrate) by 1.8- to 3.8-fold, relative to controls. Exercise significantly depleted glycolytic and TCA intermediates in nitrate- and nitrite-treated fish, as compared with their rested counterparts, while exercise did not change, or increased, these metabolites in control fish. There was a significant net depletion of fatty acids, acyl carnitines, and ketone bodies in exercised, nitrite-treated fish (2- to 4-fold), while exercise increased net fatty acids and acyl carnitines in nitrate-treated fish (1.5- to 12-fold), relative to their treated and rested counterparts. CONCLUSIONS Nitrate and nitrite treatment increased the availability of metabolic fuels (ATP, glycolytic and TCA intermediates, lactate, and ketone bodies) in rested zebrafish. Nitrate treatment may improve exercise performance, in part, by stimulating the preferential use of fuels that require less oxygen for energy production.
Collapse
Affiliation(s)
- Elizabeth R Axton
- Department of Pharmaceutical Sciences, Oregon State University, Corvallis, OR, USA
- Linus Pauling Institute, Oregon State University, Corvallis, OR, USA
- Sinnhuber Aquatic Research Laboratory and the Department of Environmental and Molecular Toxicology, Oregon State University, Corvallis, OR, USA
| | - Laura M Beaver
- Linus Pauling Institute, Oregon State University, Corvallis, OR, USA
- School of Biological and Population Health Sciences, College of Public Health and Human Sciences, Oregon State University, Corvallis, OR, USA
| | - Lindsey St. Mary
- Sinnhuber Aquatic Research Laboratory and the Department of Environmental and Molecular Toxicology, Oregon State University, Corvallis, OR, USA
| | - Lisa Truong
- Sinnhuber Aquatic Research Laboratory and the Department of Environmental and Molecular Toxicology, Oregon State University, Corvallis, OR, USA
| | - Christiana R Logan
- School of Biological and Population Health Sciences, College of Public Health and Human Sciences, Oregon State University, Corvallis, OR, USA
| | - Sean Spagnoli
- Department of Biomedical Sciences, College of Veterinary Medicine, Oregon State University, Corvallis, OR, USA
| | - Mary C Prater
- School of Biological and Population Health Sciences, College of Public Health and Human Sciences, Oregon State University, Corvallis, OR, USA
| | - Rosa M Keller
- School of Biological and Population Health Sciences, College of Public Health and Human Sciences, Oregon State University, Corvallis, OR, USA
| | - Manuel Garcia-Jaramillo
- Linus Pauling Institute, Oregon State University, Corvallis, OR, USA
- School of Biological and Population Health Sciences, College of Public Health and Human Sciences, Oregon State University, Corvallis, OR, USA
- Department of Chemistry, Oregon State University, Corvallis, OR, USA
| | - Sarah E Ehrlicher
- School of Biological and Population Health Sciences, College of Public Health and Human Sciences, Oregon State University, Corvallis, OR, USA
| | - Harrison D Stierwalt
- School of Biological and Population Health Sciences, College of Public Health and Human Sciences, Oregon State University, Corvallis, OR, USA
| | - Sean A Newsom
- School of Biological and Population Health Sciences, College of Public Health and Human Sciences, Oregon State University, Corvallis, OR, USA
| | - Matthew M Robinson
- School of Biological and Population Health Sciences, College of Public Health and Human Sciences, Oregon State University, Corvallis, OR, USA
| | - Robert L Tanguay
- Sinnhuber Aquatic Research Laboratory and the Department of Environmental and Molecular Toxicology, Oregon State University, Corvallis, OR, USA
| | - Jan F Stevens
- Department of Pharmaceutical Sciences, Oregon State University, Corvallis, OR, USA
- Linus Pauling Institute, Oregon State University, Corvallis, OR, USA
| | - Norman G Hord
- School of Biological and Population Health Sciences, College of Public Health and Human Sciences, Oregon State University, Corvallis, OR, USA
| |
Collapse
|
21
|
Torres ERS, Hall R, Bobe G, Choi J, Impey S, Pelz C, Lindner JR, Stevens JF, Raber J. Integrated Metabolomics-DNA Methylation Analysis Reveals Significant Long-Term Tissue-Dependent Directional Alterations in Aminoacyl-tRNA Biosynthesis in the Left Ventricle of the Heart and Hippocampus Following Proton Irradiation. Front Mol Biosci 2019; 6:77. [PMID: 31552266 PMCID: PMC6746933 DOI: 10.3389/fmolb.2019.00077] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2019] [Accepted: 08/16/2019] [Indexed: 12/17/2022] Open
Abstract
In this study, an untargeted metabolomics approach was used to assess the effects of proton irradiation (1 Gy of 150 MeV) on the metabolome and DNA methylation pattern in the murine hippocampus and left ventricle of the heart 22 weeks following exposure using an integrated metabolomics-DNA methylation analysis. The integrated metabolomics-DNA methylation analysis in both tissues revealed significant alterations in aminoacyl-tRNA biosynthesis, but the direction of change was tissue-dependent. Individual and total amino acid synthesis were downregulated in the left ventricle of proton-irradiated mice but were upregulated in the hippocampus of proton-irradiated mice. Amino acid tRNA synthetase methylation was mostly downregulated in the hippocampus of proton-irradiated mice, whereas no consistent methylation pattern was observed for amino acid tRNA synthetases in the left ventricle of proton-irradiated mice. Thus, proton irradiation causes long-term changes in the left ventricle and hippocampus in part through methylation-based epigenetic modifications. Integrated analysis of metabolomics and DNA methylation is a powerful approach to obtain converging evidence of pathways significantly affected. This in turn might identify biomarkers of the radiation response, help identify therapeutic targets, and assess the efficacy of mitigators directed at those targets to minimize, or even prevent detrimental long-term effects of proton irradiation on the heart and the brain.
Collapse
Affiliation(s)
- Eileen Ruth S Torres
- Department of Behavioral Neuroscience, Oregon Health & Science University, Portland, OR, United States
| | - Reed Hall
- Department of Behavioral Neuroscience, Oregon Health & Science University, Portland, OR, United States
| | - Gerd Bobe
- Linus Pauling Institute, Oregon State University, Corvallis, OR, United States.,Department of Animal & Rangeland Sciences, Oregon State University, Corvallis, OR, United States
| | - Jaewoo Choi
- Linus Pauling Institute, Oregon State University, Corvallis, OR, United States.,Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Corvallis, OR, United States
| | - Soren Impey
- Oregon Stem Cell Center and Department of Pediatrics, Oregon Health & Science University, Portland, OR, United States
| | - Carl Pelz
- Oregon Stem Cell Center and Department of Pediatrics, Oregon Health & Science University, Portland, OR, United States
| | - Jonathan R Lindner
- Oregon National Primate Research Center, Oregon Health & Science University, Portland, OR, United States.,Knight Cardiovascular Institute, Oregon Health & Science University, Portland, OR, United States
| | - Jan F Stevens
- Linus Pauling Institute, Oregon State University, Corvallis, OR, United States.,Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Corvallis, OR, United States
| | - Jacob Raber
- Department of Behavioral Neuroscience, Oregon Health & Science University, Portland, OR, United States.,Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Corvallis, OR, United States.,Knight Cardiovascular Institute, Oregon Health & Science University, Portland, OR, United States.,Division of Neuroscience ONPRC, Departments of Neurology and Radiation Medicine, Oregon Health & Science University, Portland, OR, United States
| |
Collapse
|
22
|
Zhang T, Huang K, Zhu Y, Wang T, Shan Y, Long B, Li Y, Chen Q, Wang P, Zhao S, Li D, Wu C, Kang B, Gu J, Mai Y, Wang Q, Li J, Zhang Y, Liang Z, Guo L, Wu F, Su S, Wang J, Gao M, Zhong X, Liao B, Chen J, Zhang X, Shu X, Pei D, Nie J, Pan G. Vitamin C-dependent lysine demethylase 6 (KDM6)-mediated demethylation promotes a chromatin state that supports the endothelial-to-hematopoietic transition. J Biol Chem 2019; 294:13657-13670. [PMID: 31341023 DOI: 10.1074/jbc.ra119.009757] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Revised: 07/14/2019] [Indexed: 12/21/2022] Open
Abstract
Hematopoietic stem cells (HSCs)/progenitor cells (HPCs) are generated from hemogenic endothelial cells (HECs) during the endothelial-to-hematopoietic transition (EHT); however, the underlying mechanism remains poorly understood. Here, using an array of approaches, including CRSPR/Cas9 gene knockouts, RNA-Seq, ChIP-Seq, ATAC-Seq etc., we report that vitamin C (Vc) is essential in HPC generation during human pluripotent stem cell (hPSC) differentiation in defined culture conditions. Mechanistically, we found that the endothelial cells generated in the absence of Vc fail to undergo the EHT because of an apparent failure in opening up genomic loci essential for hematopoiesis. Under Vc deficiency, these loci exhibited abnormal accumulation of histone H3 trimethylation at Lys-27 (H3K27me3), a repressive histone modification that arose because of lower activities of demethylases that target H3K27me3. Consistently, deletion of the two H3K27me3 demethylases, Jumonji domain-containing 3 (JMJD3 or KDM6B) and histone demethylase UTX (UTX or KDM6A), impaired HPC generation even in the presence of Vc. Furthermore, we noted that Vc and jmjd3 are also important for HSC generation during zebrafish development. Together, our findings reveal an essential role for Vc in the EHT for hematopoiesis, and identify KDM6-mediated chromatin demethylation as an important regulatory mechanism in hematopoietic cell differentiation.
Collapse
Affiliation(s)
- Tian Zhang
- CAS Key Laboratory of Regenerative Biology, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou Medical University, Guangzhou 510530, China.,University of Chinese Academy of Sciences, Beijing 100049, China.,Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China.,Hefei Institute of Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China.,Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China.,Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangzhou, 510005 China
| | - Ke Huang
- CAS Key Laboratory of Regenerative Biology, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou Medical University, Guangzhou 510530, China.,Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China.,Hefei Institute of Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China.,Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China.,Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangzhou, 510005 China
| | - Yanling Zhu
- CAS Key Laboratory of Regenerative Biology, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou Medical University, Guangzhou 510530, China.,University of Chinese Academy of Sciences, Beijing 100049, China.,Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
| | - Tianyu Wang
- CAS Key Laboratory of Regenerative Biology, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou Medical University, Guangzhou 510530, China.,Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
| | - Yongli Shan
- CAS Key Laboratory of Regenerative Biology, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou Medical University, Guangzhou 510530, China.,Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
| | - Bing Long
- Department of Hematology, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China
| | - Yuhang Li
- CAS Key Laboratory of Regenerative Biology, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou Medical University, Guangzhou 510530, China.,University of Chinese Academy of Sciences, Beijing 100049, China.,Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
| | - Qianyu Chen
- CAS Key Laboratory of Regenerative Biology, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou Medical University, Guangzhou 510530, China.,Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
| | - Pengtao Wang
- CAS Key Laboratory of Regenerative Biology, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou Medical University, Guangzhou 510530, China.,Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
| | - Shaoyang Zhao
- CAS Key Laboratory of Regenerative Biology, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou Medical University, Guangzhou 510530, China.,Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
| | - Dongwei Li
- CAS Key Laboratory of Regenerative Biology, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou Medical University, Guangzhou 510530, China.,Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
| | - Chuman Wu
- CAS Key Laboratory of Regenerative Biology, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou Medical University, Guangzhou 510530, China.,Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
| | - Baoqiang Kang
- CAS Key Laboratory of Regenerative Biology, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou Medical University, Guangzhou 510530, China.,Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
| | - Jiaming Gu
- CAS Key Laboratory of Regenerative Biology, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou Medical University, Guangzhou 510530, China.,University of Chinese Academy of Sciences, Beijing 100049, China.,Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
| | - Yuchan Mai
- CAS Key Laboratory of Regenerative Biology, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou Medical University, Guangzhou 510530, China.,Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
| | - Qing Wang
- CAS Key Laboratory of Regenerative Biology, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou Medical University, Guangzhou 510530, China.,Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
| | - Jinbing Li
- CAS Key Laboratory of Regenerative Biology, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou Medical University, Guangzhou 510530, China.,University of Chinese Academy of Sciences, Beijing 100049, China.,Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
| | - Yanqi Zhang
- CAS Key Laboratory of Regenerative Biology, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou Medical University, Guangzhou 510530, China.,Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
| | - Zechuan Liang
- CAS Key Laboratory of Regenerative Biology, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou Medical University, Guangzhou 510530, China.,Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
| | - Lin Guo
- CAS Key Laboratory of Regenerative Biology, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou Medical University, Guangzhou 510530, China.,Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
| | - Fang Wu
- CAS Key Laboratory of Regenerative Biology, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou Medical University, Guangzhou 510530, China.,Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
| | - Shuquan Su
- CAS Key Laboratory of Regenerative Biology, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou Medical University, Guangzhou 510530, China.,Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
| | - Junwei Wang
- CAS Key Laboratory of Regenerative Biology, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou Medical University, Guangzhou 510530, China.,Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
| | - Minghui Gao
- CAS Key Laboratory of Regenerative Biology, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou Medical University, Guangzhou 510530, China.,Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
| | - Xiaofen Zhong
- CAS Key Laboratory of Regenerative Biology, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou Medical University, Guangzhou 510530, China.,Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
| | - Baojian Liao
- CAS Key Laboratory of Regenerative Biology, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou Medical University, Guangzhou 510530, China.,Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China.,Hefei Institute of Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
| | - Jiekai Chen
- CAS Key Laboratory of Regenerative Biology, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou Medical University, Guangzhou 510530, China.,Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
| | - Xiao Zhang
- CAS Key Laboratory of Regenerative Biology, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou Medical University, Guangzhou 510530, China.,Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
| | - Xiaodong Shu
- CAS Key Laboratory of Regenerative Biology, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou Medical University, Guangzhou 510530, China.,Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
| | - Duanqing Pei
- CAS Key Laboratory of Regenerative Biology, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou Medical University, Guangzhou 510530, China.,Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
| | - Jinfu Nie
- CAS Key Laboratory of Regenerative Biology, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou Medical University, Guangzhou 510530, China.,Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China.,Anhui Province Key Laboratory of Medical Physics and Technology, Center of Medical Physics and Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031, China.,Hefei Cancer Hospital, Chinese Academy of Sciences, Hefei, Anhui 230031, China
| | - Guangjin Pan
- CAS Key Laboratory of Regenerative Biology, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou Medical University, Guangzhou 510530, China .,Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China.,Hefei Institute of Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China.,Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangzhou, 510005 China.,Shandong Medicinal Biotechnology Center, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan 250012, China
| |
Collapse
|
23
|
Lande C, Rao S, Morré JT, Galindo G, Kirby J, Reardon PN, Bobe G, Stevens JF. Linden (Tilia cordata) associated bumble bee mortality: Metabolomic analysis of nectar and bee muscle. PLoS One 2019; 14:e0218406. [PMID: 31291287 PMCID: PMC6619659 DOI: 10.1371/journal.pone.0218406] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Accepted: 05/31/2019] [Indexed: 11/19/2022] Open
Abstract
Linden (Tilia spp.), a profusely flowering temperate tree that provides bees with vital pollen and nectar, has been associated with bumble bee (Bombus spp.) mortality in Europe and North America. Bee deaths have been attributed, with inadequate evidence, to toxicity from mannose in nectar or starvation due to low nectar in late blooming linden. Here, we investigated both factors via untargeted metabolomic analyses of nectar from five T. cordata trees beneath which crawling/dead bumble bees (B. vosnesenskii) were observed, and of thoracic muscle of 28 healthy foraging and 29 crawling bees collected from linden trees on cool mornings (< 30°C). Nectar contained the pyridine alkaloid trigonelline, a weak acetylcholinesterase inhibitor, but no mannose. Principal component analysis of muscle metabolites produced distinct clustering of healthy and crawling bees, with significant differences (P<0.05) in 34 of 123 identified metabolites. Of these, TCA (Krebs) cycle intermediates were strongly represented (pathway analysis; P<0.01), suggesting that the central metabolism is affected in crawling bees. Hence, we propose the following explanation: when ambient temperature is low, bees with energy deficit are unable to maintain the thoracic temperature required for flight, and consequently fall, crawl, and ultimately, die. Energy deficit could occur when bees continue to forage on linden despite limited nectar availability either due to loyalty to a previously energy-rich source or trigonelline-triggered memory/learning impairment, documented earlier with other alkaloids. Thus, the combination of low temperature and nectar volume, resource fidelity, and alkaloids in nectar could explain the unique phenomenon of bumble bee mortality associated with linden.
Collapse
Affiliation(s)
- Claire Lande
- Department of Crop and Soil Science, Oregon State University, Corvallis, Oregon, United States of America
| | - Sujaya Rao
- Department of Crop and Soil Science, Oregon State University, Corvallis, Oregon, United States of America
| | - Jeffrey T. Morré
- Department of Chemistry, Oregon State University, Corvallis, Oregon, United States of America
| | - Gracie Galindo
- Department of Crop and Soil Science, Oregon State University, Corvallis, Oregon, United States of America
| | - Julie Kirby
- Department of Crop and Soil Science, Oregon State University, Corvallis, Oregon, United States of America
| | - Patrick N. Reardon
- NMR Facility, Oregon State University, Corvallis, Oregon, United States of America
| | - Gerd Bobe
- Linus Pauling Institute, Oregon State University, Corvallis, Oregon, United States of America
- Department of Animal and Rangeland Sciences, Oregon State University, Corvallis, Oregon, United States of America
| | - Jan Frederik Stevens
- Linus Pauling Institute, Oregon State University, Corvallis, Oregon, United States of America
- Department of Pharmaceutical Sciences, Oregon State University, Corvallis, Oregon, United States of America
| |
Collapse
|
24
|
Dhillon SS, Torell F, Donten M, Lundstedt-Enkel K, Bennett K, Rännar S, Trygg J, Lundstedt T. Metabolic profiling of zebrafish embryo development from blastula period to early larval stages. PLoS One 2019; 14:e0213661. [PMID: 31086370 PMCID: PMC6516655 DOI: 10.1371/journal.pone.0213661] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Accepted: 01/15/2019] [Indexed: 11/18/2022] Open
Abstract
The zebrafish embryo is a popular model for drug screening, disease modelling and molecular genetics. In this study, samples were obtained from zebrafish at different developmental stages. The stages that were chosen were 3/4, 4/5, 24, 48, 72 and 96 hours post fertilization (hpf). Each sample included fifty embryos. The samples were analysed using gas chromatography time-of-flight mass spectrometry (GC-TOF-MS). Principle component analysis (PCA) was applied to get an overview of the data and orthogonal projection to latent structure discriminant analysis (OPLS-DA) was utilised to discriminate between the developmental stages. In this way, changes in metabolite profiles during vertebrate development could be identified. Using a GC-TOF-MS metabolomics approach it was found that nucleotides and metabolic fuel (glucose) were elevated at early stages of embryogenesis, whereas at later stages amino acids and intermediates in the Krebs cycle were abundant. This agrees with zebrafish developmental biology, as organs such as the liver and pancreas develop at later stages. Thus, metabolomics of zebrafish embryos offers a unique opportunity to investigate large scale changes in metabolic processes during important developmental stages in vertebrate development. In terms of stability of the metabolic profile and viability of the embryos, it was concluded at 72 hpf was a suitable time point for the use of zebrafish as a model system in numerous scientific applications.
Collapse
Affiliation(s)
- Sundeep S. Dhillon
- School of Clinical and Experimental Medicine, College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom
| | - Frida Torell
- Computational Life Science Cluster (CLiC), Department of Chemistry, Umeå University, Umeå, Sweden
- Accelerator Lab (ACL), Karlsruhe Institute of Technology, Karlsruhe, Germany
- AcureOmics, Umeå, Sweden
| | | | - Katrin Lundstedt-Enkel
- AcureOmics, Umeå, Sweden
- Environmental toxicology, Organismal Biology, Uppsala University, Uppsala, Sweden
| | | | - Stefan Rännar
- AcureOmics, Umeå, Sweden
- Corporate Research, Sartorius AG, Göttingen, Germany
| | - Johan Trygg
- Computational Life Science Cluster (CLiC), Department of Chemistry, Umeå University, Umeå, Sweden
- Corporate Research, Sartorius AG, Göttingen, Germany
- * E-mail:
| | - Torbjörn Lundstedt
- AcureOmics, Umeå, Sweden
- Deparment of Pharmaceutical Bioscience, BMC, Uppsala University, Uppsala, Sweden
| |
Collapse
|
25
|
Garcia-Jaramillo M, Spooner MH, Löhr CV, Wong CP, Zhang W, Jump DB. Lipidomic and transcriptomic analysis of western diet-induced nonalcoholic steatohepatitis (NASH) in female Ldlr -/- mice. PLoS One 2019; 14:e0214387. [PMID: 30943218 PMCID: PMC6447358 DOI: 10.1371/journal.pone.0214387] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Accepted: 03/12/2019] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Nonalcoholic fatty liver disease (NAFLD) is the most common chronic liver disease worldwide, particularly in obese and type 2 diabetic individuals. NAFLD ranges in severity from benign steatosis to nonalcoholic steatohepatitis (NASH); and NASH can progress to cirrhosis, primary hepatocellular carcinoma (HCC) and liver failure. As such, NAFLD has emerged as a major public health concern. Herein, we used a lipidomic and transcriptomic approach to identify lipid markers associated with western diet (WD) induced NASH in female mice. METHODS Female mice (low-density lipoprotein receptor null (Ldlr -/-) were fed a reference or WD diet for 38 and 46 weeks. Transcriptomic and lipidomic approaches, coupled with statistical analyses, were used to identify associations between major NASH markers and transcriptomic & lipidomic markers. RESULTS The WD induced all major hallmarks of NASH in female Ldlr -/- mice, including steatosis (SFA, MUFA, MUFA-containing di- and triacylglycerols), inflammation (TNFα), oxidative stress (Ncf2), and fibrosis (Col1A). The WD also increased transcripts associated with membrane remodeling (LpCat), apoptosis & autophagy (Casp1, CtsS), hedgehog (Taz) & notch signaling (Hey1), epithelial-mesenchymal transition (S1004A) and cancer (Gpc3). WD feeding, however, suppressed the expression of the hedgehog inhibitory protein (Hhip), and enzymes involved in triglyceride catabolism (Tgh/Ces3, Ces1g), as well as the hepatic abundance of C18-22 PUFA-containing phosphoglycerolipids (GpCho, GpEtn, GpSer, GpIns). WD feeding also increased hepatic cyclooxygenase (Cox1 & 2) expression and pro-inflammatory ω6 PUFA-derived oxylipins (PGE2), as well as lipid markers of oxidative stress (8-iso-PGF2α). The WD suppressed the hepatic abundance of reparative oxylipins (19, 20-DiHDPA) as well as the expression of enzymes involved in fatty epoxide metabolism (Cyp2C, Ephx). CONCLUSION WD-induced NASH in female Ldlr -/- mice was characterized by a massive increase in hepatic neutral and membrane lipids containing SFA and MUFA and a loss of C18-22 PUFA-containing membrane lipids. Moreover, the WD increased hepatic pro-inflammatory oxylipins and suppressed the hepatic abundance of reparative oxylipins. Such global changes in the type and abundance of hepatic lipids likely contributes to tissue remodeling and NASH severity.
Collapse
MESH Headings
- Animals
- Carcinoma, Hepatocellular/complications
- Carcinoma, Hepatocellular/genetics
- Carcinoma, Hepatocellular/metabolism
- Diabetes Mellitus, Type 2/complications
- Diabetes Mellitus, Type 2/genetics
- Diabetes Mellitus, Type 2/metabolism
- Diet, Western/adverse effects
- Disease Models, Animal
- Fatty Acids, Monounsaturated/metabolism
- Fatty Acids, Omega-3/genetics
- Female
- Fibrosis/complications
- Fibrosis/genetics
- Fibrosis/metabolism
- Humans
- Lipid Metabolism/genetics
- Lipidomics
- Liver Neoplasms/complications
- Liver Neoplasms/genetics
- Liver Neoplasms/metabolism
- Mice
- Mice, Knockout
- Non-alcoholic Fatty Liver Disease/complications
- Non-alcoholic Fatty Liver Disease/genetics
- Non-alcoholic Fatty Liver Disease/metabolism
- Non-alcoholic Fatty Liver Disease/pathology
- Obesity/complications
- Obesity/genetics
- Obesity/metabolism
- Oxidative Stress/genetics
- Receptors, LDL/genetics
- Transcriptome/genetics
- Triglycerides/metabolism
Collapse
Affiliation(s)
- Manuel Garcia-Jaramillo
- The Nutrition Program, School of Biological and Population Health Sciences, Oregon State University, Corvallis, Oregon, United States of America
- The Linus Pauling Institute, Oregon State University, Corvallis, Oregon, United States of America
- Department of Chemistry Oregon State University, Corvallis, Oregon, United States of America
| | - Melinda H. Spooner
- The Nutrition Program, School of Biological and Population Health Sciences, Oregon State University, Corvallis, Oregon, United States of America
- The Linus Pauling Institute, Oregon State University, Corvallis, Oregon, United States of America
| | - Christiane V. Löhr
- Anatomic Pathology, Carlson College of Veterinary Medicine, Oregon State University, Corvallis, Oregon, United States of America
| | - Carmen P. Wong
- The Nutrition Program, School of Biological and Population Health Sciences, Oregon State University, Corvallis, Oregon, United States of America
- The Linus Pauling Institute, Oregon State University, Corvallis, Oregon, United States of America
| | - Weijian Zhang
- The Linus Pauling Institute, Oregon State University, Corvallis, Oregon, United States of America
| | - Donald B. Jump
- The Nutrition Program, School of Biological and Population Health Sciences, Oregon State University, Corvallis, Oregon, United States of America
- The Linus Pauling Institute, Oregon State University, Corvallis, Oregon, United States of America
| |
Collapse
|
26
|
Wen B, Jin SR, Chen ZZ, Gao JZ. Physiological responses to cold stress in the gills of discus fish (Symphysodon aequifasciatus) revealed by conventional biochemical assays and GC-TOF-MS metabolomics. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 640-641:1372-1381. [PMID: 30021304 DOI: 10.1016/j.scitotenv.2018.05.401] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2018] [Revised: 05/31/2018] [Accepted: 05/31/2018] [Indexed: 05/18/2023]
Abstract
Discus fish (Symphysodon aequifasciatus) is a cichlid that is among the most popular fish for warm-water aquaria and also frequently used as the model animal for environmental science. However, little is known about the responses of S. aequifasciatus to low temperatures caused by environmental variation. Here, by using conventional biochemical assays and gas chromatography time-of-flight mass spectrometry metabolomics, we investigated the physiological responses of S. aequifasciatus gills exposed for 30 days to two temperature regimes: 28 °C and 20 °C. Low temperature resulted in elevated production of reactive oxygen species but not increased malondialdehyde. This might be partially related to protective responses in the antioxidant system, revealed by increased activities of superoxide dismutase and glutathione peroxidase, and level of reduced glutathione (GSH), compensating for the depletion of catalase activity. A total of 35 metabolites were identified as potential biomarkers of cold stress, showing the most influenced pathways including starch and sucrose metabolism, pentose phosphate pathway, glycerolipid metabolism, sphingolipid metabolism, glutathione metabolism, and arginine and proline metabolism. Moreover, the activation of glutathione metabolism agreed with the increased GSH level detected by biochemical assays. Overall, the results of this study suggest that low temperature can activate a protective antioxidant defence response and modify the metabolic pathways in gills of S. aequifasciatus, providing insights into the physiological regulation in response to cold stress in this tropical fish.
Collapse
Affiliation(s)
- Bin Wen
- Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture, Shanghai Ocean University, Shanghai 201306, China; Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai 201306, China; Shanghai Collaborative Innovation for Aquatic Animal Genetics and Breeding, Shanghai Ocean University, Shanghai 201306, China
| | - Shi-Rong Jin
- Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture, Shanghai Ocean University, Shanghai 201306, China; Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai 201306, China; Shanghai Collaborative Innovation for Aquatic Animal Genetics and Breeding, Shanghai Ocean University, Shanghai 201306, China
| | - Zai-Zhong Chen
- Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture, Shanghai Ocean University, Shanghai 201306, China; Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai 201306, China; Shanghai Collaborative Innovation for Aquatic Animal Genetics and Breeding, Shanghai Ocean University, Shanghai 201306, China.
| | - Jian-Zhong Gao
- Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture, Shanghai Ocean University, Shanghai 201306, China; Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai 201306, China; Shanghai Collaborative Innovation for Aquatic Animal Genetics and Breeding, Shanghai Ocean University, Shanghai 201306, China.
| |
Collapse
|
27
|
Axton ER, Cristobal E, Choi J, Miranda CL, Stevens JF. Metabolomics-Driven Elucidation of Cellular Nitrate Tolerance Reveals Ascorbic Acid Prevents Nitroglycerin-Induced Inactivation of Xanthine Oxidase. Front Pharmacol 2018; 9:1085. [PMID: 30319419 PMCID: PMC6167911 DOI: 10.3389/fphar.2018.01085] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2018] [Accepted: 09/06/2018] [Indexed: 12/16/2022] Open
Abstract
Glyceryl trinitrate (GTN) has found widespread use for the treatment of angina pectoris, a pathological condition manifested by chest pain resulting from insufficient blood supply to the heart. Metabolic conversion of GTN, a nitric oxide (NO) pro-drug, into NO induces vasodilation and improves blood flow. Patients develop tolerance to GTN after several weeks of continuous use, limiting the potential for long-term therapy. The mechanistic cause of nitrate tolerance is relatively unknown. We developed a cell culture model of nitrate tolerance that utilizes stable isotopes to measure metabolism of 15N3-GTN into 15N-nitrite. We performed global metabolomics to identify the mechanism of GTN-induced nitrate tolerance and to elucidate the protective role of vitamin C (ascorbic acid). Metabolomics analyses revealed that GTN impaired purine metabolism and depleted intracellular ATP and GTP. GTN inactivated xanthine oxidase (XO), an enzyme that is critical for the metabolic bioactivation of GTN into NO. Ascorbic acid prevented inactivation of XO, resulting in increased NO production from GTN. Our studies suggest that ascorbic acid has the ability to prevent nitrate tolerance by protecting XO, but not aldehyde dehydrogenase (another GTN bioactivating enzyme), from GTN-induced inactivation. Our findings provide a mechanistic explanation for the previously observed beneficial effects of ascorbic acid in nitrate therapy.
Collapse
Affiliation(s)
- Elizabeth Rose Axton
- The Linus Pauling Institute, Oregon State University, Corvallis, OR, United States.,Department of Pharmaceutical Sciences, Oregon State University, Corvallis, OR, United States.,Department of Environmental and Molecular Toxicology, Oregon State University, Corvallis, OR, United States
| | - Eleonso Cristobal
- The Linus Pauling Institute, Oregon State University, Corvallis, OR, United States.,Department of Pharmaceutical Sciences, Oregon State University, Corvallis, OR, United States
| | - Jaewoo Choi
- The Linus Pauling Institute, Oregon State University, Corvallis, OR, United States
| | - Cristobal L Miranda
- The Linus Pauling Institute, Oregon State University, Corvallis, OR, United States.,Department of Pharmaceutical Sciences, Oregon State University, Corvallis, OR, United States
| | - Jan Frederik Stevens
- The Linus Pauling Institute, Oregon State University, Corvallis, OR, United States.,Department of Pharmaceutical Sciences, Oregon State University, Corvallis, OR, United States
| |
Collapse
|
28
|
Conrad M, Kagan VE, Bayir H, Pagnussat GC, Head B, Traber MG, Stockwell BR. Regulation of lipid peroxidation and ferroptosis in diverse species. Genes Dev 2018; 32:602-619. [PMID: 29802123 PMCID: PMC6004068 DOI: 10.1101/gad.314674.118] [Citation(s) in RCA: 316] [Impact Index Per Article: 52.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
This review by Conrad et al. reviews the functions and regulation of lipid peroxidation, ferroptosis, and the antioxidant network in diverse species, including humans, other mammals and vertebrates, plants, invertebrates, yeast, bacteria, and archaea, and discusses the potential evolutionary roles of lipid peroxidation and ferroptosis. Lipid peroxidation is the process by which oxygen combines with lipids to generate lipid hydroperoxides via intermediate formation of peroxyl radicals. Vitamin E and coenzyme Q10 react with peroxyl radicals to yield peroxides, and then these oxidized lipid species can be detoxified by glutathione and glutathione peroxidase 4 (GPX4) and other components of the cellular antioxidant defense network. Ferroptosis is a form of regulated nonapoptotic cell death involving overwhelming iron-dependent lipid peroxidation. Here, we review the functions and regulation of lipid peroxidation, ferroptosis, and the antioxidant network in diverse species, including humans, other mammals and vertebrates, plants, invertebrates, yeast, bacteria, and archaea. We also discuss the potential evolutionary roles of lipid peroxidation and ferroptosis.
Collapse
Affiliation(s)
- Marcus Conrad
- Institute of Developmental Genetics, Helmholtz Zentrum München, Deutsches Forschungszentrum für Gesundheit und Umwelt (GmbH), 85764 Neuherberg, Germany
| | - Valerian E Kagan
- Center for Free Radical and Antioxidant Health, University of Pittsburgh, Pittsburgh, Pennsylvania 15213, USA.,Department of Environmental Health, University of Pittsburgh, Pittsburgh, Pennsylvania 15213, USA.,Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15213, USA.,Department of Pharmacology and Chemical Biology, University of Pittsburgh, Pittsburgh, Pennsylvania 15213, USA.,Laboratory of Navigational Lipidomics of Cell Death and Regeneration, I.M. Sechenov First Moscow State Medical University, Moscow 119992, Russia
| | - Hülya Bayir
- Center for Free Radical and Antioxidant Health, University of Pittsburgh, Pittsburgh, Pennsylvania 15213, USA.,Department of Critical Care Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania 15213, USA
| | - Gabriela C Pagnussat
- Instituto de Investigaciones Biológicas, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad Nacional de Mar del Plata, 7600 Mar del Plata, Argentina
| | - Brian Head
- Linus Pauling Institute, Oregon State University, Corvallis, Oregon 97330.,Molecular and Cell Biology Graduate Program, Oregon State University, Corvallis, Oregon 97330, USA
| | - Maret G Traber
- Linus Pauling Institute, Oregon State University, Corvallis, Oregon 97330.,College of Public Health and Human Sciences, Oregon State University, Corvallis, Oregon 97330, USA
| | - Brent R Stockwell
- Department of Biological Sciences, Columbia University, New York, New York 10027, USA.,Department of Chemistry, Columbia University, New York, New York 10027, USA
| |
Collapse
|
29
|
Housley L, Magana AA, Hsu A, Beaver LM, Wong CP, Stevens JF, Choi J, Jiang Y, Bella D, Williams DE, Maier CS, Shannon J, Dashwood RH, Ho E. Untargeted Metabolomic Screen Reveals Changes in Human Plasma Metabolite Profiles Following Consumption of Fresh Broccoli Sprouts. Mol Nutr Food Res 2018; 62:e1700665. [PMID: 29377494 DOI: 10.1002/mnfr.201700665] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Revised: 12/22/2017] [Indexed: 12/21/2022]
Abstract
SCOPE Several lines of evidence suggest that the consumption of cruciferous vegetables is beneficial to human health. Yet, underlying mechanisms and key molecular targets that are involved with achieving these benefits in humans are still not fully understood. To accelerate this research, we conduct a human study to identify potential molecular targets of crucifers for further study. This study aims to characterize plasma metabolite profiles in humans before and after consuming fresh broccoli sprouts (a rich dietary source of bioactive sulforaphane). METHODS AND RESULTS Ten healthy adults consume fresh broccoli sprouts (containing 200 μmol sulforaphane equivalents) at time 0 and provide blood samples at 0, 3, 6, 12, 24, and 48 h. An untargeted metabolomics screen reveals that levels of several plasma metabolites are significantly different before and after sprout intake, including fatty acids (14:0, 14:1, 16:0, 16:1, 18:0, and 18:1), glutathione, glutamine, cysteine, dehydroepiandrosterone, and deoxyuridine monophosphate. Evaluation of all time points is conducted using paired t-test (R software) and repeated measures analysis of variance for a within-subject design (Progenesis QI). CONCLUSION This investigation identifies several potential molecular targets of crucifers that may aid in studying established and emerging health benefits of consuming cruciferous vegetables and related bioactive compounds.
Collapse
Affiliation(s)
- Lauren Housley
- School of Biological and Population Health Sciences, Oregon State University, Corvallis, OR, USA.,Department of Nutrition and Food Science, California State University, Chico, CA, USA
| | - Armando Alcazar Magana
- Linus Pauling Institute, Oregon State University, Corvallis, OR, USA.,Department of Chemistry, Oregon State University, Corvallis, OR, USA
| | - Anna Hsu
- School of Biological and Population Health Sciences, Oregon State University, Corvallis, OR, USA
| | - Laura M Beaver
- School of Biological and Population Health Sciences, Oregon State University, Corvallis, OR, USA
| | - Carmen P Wong
- School of Biological and Population Health Sciences, Oregon State University, Corvallis, OR, USA
| | - Jan F Stevens
- Linus Pauling Institute, Oregon State University, Corvallis, OR, USA.,Department of Pharmaceutical Sciences, Oregon State University, Corvallis, OR, USA
| | - Jaewoo Choi
- Linus Pauling Institute, Oregon State University, Corvallis, OR, USA
| | - Yuan Jiang
- Department of Statistics, Oregon State University, Corvallis, OR, USA
| | - Deborah Bella
- School of Biological and Population Health Sciences, Oregon State University, Corvallis, OR, USA
| | - David E Williams
- Linus Pauling Institute, Oregon State University, Corvallis, OR, USA.,Department of Environmental and Molecular Toxicology, Oregon State University, Corvallis, OR, USA
| | - Claudia S Maier
- Department of Chemistry, Oregon State University, Corvallis, OR, USA
| | - Jackilen Shannon
- Department of Public Health & Preventive Medicine, Oregon Health and Science University, Portland, OR, USA
| | - Roderick H Dashwood
- Center for Epigenetics & Disease Prevention, Texas A&M Health Science Center, Houston, TX, USA
| | - Emily Ho
- School of Biological and Population Health Sciences, Oregon State University, Corvallis, OR, USA.,Linus Pauling Institute, Oregon State University, Corvallis, OR, USA.,Center for Epigenetics & Disease Prevention, Texas A&M Health Science Center, Houston, TX, USA.,Moore Family Center for Whole Grain Foods, Nutrition and Preventive Health, Oregon State University, Corvallis, OR, USA
| |
Collapse
|
30
|
McDougall M, Choi J, Kim HK, Bobe G, Stevens JF, Cadenas E, Tanguay R, Traber MG. Lethal dysregulation of energy metabolism during embryonic vitamin E deficiency. Free Radic Biol Med 2017; 104:324-332. [PMID: 28095320 PMCID: PMC5344700 DOI: 10.1016/j.freeradbiomed.2017.01.020] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Revised: 01/09/2017] [Accepted: 01/12/2017] [Indexed: 01/18/2023]
Abstract
Vitamin E (α-tocopherol, VitE) was discovered in 1922 for its role in preventing embryonic mortality. We investigated the underlying mechanisms causing lethality using targeted metabolomics analyses of zebrafish VitE-deficient embryos over five days of development, which coincided with their increased morbidity and mortality. VitE deficiency resulted in peroxidation of docosahexaenoic acid (DHA), depleting DHA-containing phospholipids, especially phosphatidylcholine, which also caused choline depletion. This increased lipid peroxidation also increased NADPH oxidation, which depleted glucose by shunting it to the pentose phosphate pathway. VitE deficiency was associated with mitochondrial dysfunction with concomitant impairment of energy homeostasis. The observed morbidity and mortality outcomes could be attenuated, but not fully reversed, by glucose injection into VitE-deficient embryos at developmental day one. Thus, embryonic VitE deficiency in vertebrates leads to a metabolic reprogramming that adversely affects methyl donor status and cellular energy homeostasis with lethal outcomes.
Collapse
Affiliation(s)
- Melissa McDougall
- Linus Pauling Institute, Oregon State University, Corvallis, OR 97331, USA; College of Public Health and Human Sciences, Oregon State University, Corvallis, OR 97331, USA
| | - Jaewoo Choi
- Linus Pauling Institute, Oregon State University, Corvallis, OR 97331, USA
| | - Hye-Kyeong Kim
- The Catholic University of Korea, Seoul, Republic of Korea
| | - Gerd Bobe
- Linus Pauling Institute, Oregon State University, Corvallis, OR 97331, USA
| | - J Frederik Stevens
- Linus Pauling Institute, Oregon State University, Corvallis, OR 97331, USA; College of Pharmacy, Oregon State University, Corvallis, OR 97331, USA; Environmental Health Sciences Center, Oregon State University, Corvallis, OR 97331, USA
| | - Enrique Cadenas
- University of Southern California, School of Pharmacy, Los Angeles, CA 90089, USA
| | - Robert Tanguay
- Environmental Health Sciences Center, Oregon State University, Corvallis, OR 97331, USA; Environmental and Molecular Toxicology, Oregon State University, Corvallis, OR 97331, USA; Sinnhuber Aquatic Research Laboratory, Oregon State University, Corvallis, OR 97331, USA
| | - Maret G Traber
- Linus Pauling Institute, Oregon State University, Corvallis, OR 97331, USA; College of Public Health and Human Sciences, Oregon State University, Corvallis, OR 97331, USA; Environmental Health Sciences Center, Oregon State University, Corvallis, OR 97331, USA.
| |
Collapse
|
31
|
McDougall MQ, Choi J, Stevens JF, Truong L, Tanguay RL, Traber MG. Lipidomics and H2(18)O labeling techniques reveal increased remodeling of DHA-containing membrane phospholipids associated with abnormal locomotor responses in α-tocopherol deficient zebrafish (danio rerio) embryos. Redox Biol 2016; 8:165-74. [PMID: 26774753 PMCID: PMC4732018 DOI: 10.1016/j.redox.2016.01.004] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2015] [Revised: 01/07/2016] [Accepted: 01/08/2016] [Indexed: 12/30/2022] Open
Abstract
We hypothesized that vitamin E (α-tocopherol) is required by the developing embryonic brain to prevent depletion of highly polyunsaturated fatty acids, especially docosahexaenoic acid (DHA, 22:6), the loss of which we predicted would underlie abnormal morphological and behavioral outcomes. Therefore, we fed adult 5D zebrafish (Danio rerio) defined diets without (E−) or with added α-tocopherol (E+, 500 mg RRR-α-tocopheryl acetate/kg diet) for a minimum of 80 days, and then spawned them to obtain E− and E+ embryos. The E− compared with E+ embryos were 82% less responsive (p<0.01) to a light/dark stimulus at 96 h post-fertilization (hpf), demonstrating impaired locomotor behavior, even in the absence of gross morphological defects. Evaluation of phospholipid (PL) and lysophospholipid (lyso-PL) composition using untargeted lipidomics in E− compared with E+ embryos at 24, 48, 72, and 120 hpf showed that four PLs and three lyso-PLs containing docosahexaenoic acid (DHA), including lysophosphatidylcholine (LPC 22:6, required for transport of DHA into the brain, p<0.001), were at lower concentrations in E− at all time-points. Additionally, H218O labeling experiments revealed enhanced turnover of LPC 22:6 (p<0.001) and three other DHA-containing PLs in the E− compared with the E+ embryos, suggesting that increased membrane remodeling is a result of PL depletion. Together, these data indicate that α-tocopherol deficiency in the zebrafish embryo causes the specific depletion and increased turnover of DHA-containing PL and lyso-PLs, which may compromise DHA delivery to the brain and thereby contribute to the functional impairments observed in E− embryos. α-Tocopherol deficient (E-) embryos are abnormal and have impaired locomotor responses. DHA-containing phospholipids and lysophospholipids are depleted in E− embryos. E- embryos have increased turnover of DHA-containing phospholipids and lysophospholipids. DHA delivery to tissues is compromised, contributing to the functional impairments in E- embryos.
Collapse
Affiliation(s)
- Melissa Q McDougall
- Linus Pauling Institute, Oregon State University, Corvallis, OR 97331, USA; College of Public Health and Human Sciences, Oregon State University, Corvallis, OR 97331, USA
| | - Jaewoo Choi
- Linus Pauling Institute, Oregon State University, Corvallis, OR 97331, USA
| | - Jan F Stevens
- Linus Pauling Institute, Oregon State University, Corvallis, OR 97331, USA; College of Pharmacy, Oregon State University, Corvallis, OR 97331, USA; Environmental Health Sciences Center, Oregon State University, Corvallis, OR 97331, USA
| | - Lisa Truong
- Sinnhuber Aquatic Research Laboratory, Oregon State University, Corvallis, OR 97331, USA; Environmental and Molecular Toxicology, Oregon State University, Corvallis, OR 97331, USA; Environmental Health Sciences Center, Oregon State University, Corvallis, OR 97331, USA
| | - Robert L Tanguay
- Sinnhuber Aquatic Research Laboratory, Oregon State University, Corvallis, OR 97331, USA; Environmental and Molecular Toxicology, Oregon State University, Corvallis, OR 97331, USA; Environmental Health Sciences Center, Oregon State University, Corvallis, OR 97331, USA
| | - Maret G Traber
- Linus Pauling Institute, Oregon State University, Corvallis, OR 97331, USA; College of Public Health and Human Sciences, Oregon State University, Corvallis, OR 97331, USA; Environmental Health Sciences Center, Oregon State University, Corvallis, OR 97331, USA.
| |
Collapse
|
32
|
|
33
|
Caro M, Iturria I, Martinez-Santos M, Pardo MA, Rainieri S, Tueros I, Navarro V. Zebrafish dives into food research: effectiveness assessment of bioactive compounds. Food Funct 2016; 7:2615-23. [DOI: 10.1039/c6fo00046k] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Zebrafish ease of use and characteristics reveal it to be an interesting and underused model in food and nutrition research.
Collapse
Affiliation(s)
- M. Caro
- AZTI, Food Research, Astondo Bidea 609
- 48160 Derio
- Spain
| | - I. Iturria
- AZTI, Food Research, Astondo Bidea 609
- 48160 Derio
- Spain
| | | | - M. A. Pardo
- AZTI, Food Research, Astondo Bidea 609
- 48160 Derio
- Spain
| | - S. Rainieri
- AZTI, Food Research, Astondo Bidea 609
- 48160 Derio
- Spain
| | - I. Tueros
- AZTI, Food Research, Astondo Bidea 609
- 48160 Derio
- Spain
| | - V. Navarro
- AZTI, Food Research, Astondo Bidea 609
- 48160 Derio
- Spain
| |
Collapse
|
34
|
Elie MR, Choi J, Nkrumah-Elie YM, Gonnerman GD, Stevens JF, Tanguay RL. Metabolomic analysis to define and compare the effects of PAHs and oxygenated PAHs in developing zebrafish. ENVIRONMENTAL RESEARCH 2015; 140:502-10. [PMID: 26001975 PMCID: PMC4492807 DOI: 10.1016/j.envres.2015.05.009] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2015] [Revised: 05/05/2015] [Accepted: 05/07/2015] [Indexed: 05/22/2023]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) and their oxygenated derivatives are ubiquitously present in diesel exhaust, atmospheric particulate matter and soils sampled in urban areas. Therefore, inhalation or non-dietary ingestion of both PAHs and oxy-PAHs are major routes of exposure for people; especially young children living in these localities. While there has been extensive research on the parent PAHs, limited studies exist on the biological effects of oxy-PAHs which have been shown to be more soluble and more mobile in the environment. Additionally, investigations comparing the metabolic responses resulting from parent PAHs and oxy-PAHs exposures have not been reported. To address these current gaps, an untargeted metabolomics approach was conducted to examine the in vivo metabolomic profiles of developing zebrafish (Danio rerio) exposed to 4 µM of benz[a]anthracene (BAA) or benz[a]anthracene-7,12-dione (BAQ). By integrating multivariate, univariate and pathway analyses, a total of 63 metabolites were significantly altered after 5 days of exposure. The marked perturbations revealed that both BAA and BAQ affect protein biosynthesis, mitochondrial function, neural development, vascular development and cardiac function. Our previous transcriptomic and genomic data were incorporated in this metabolomics study to provide a more comprehensive view of the relationship between PAH and oxy-PAH exposures on vertebrate development.
Collapse
Affiliation(s)
- Marc R Elie
- Department of Environmental and Molecular Toxicology, Environmental Health Sciences Center, Sinnhuber Aquatic Research Laboratory, Oregon State University, Corvallis, OR 97331, United States.
| | - Jaewoo Choi
- College of Pharmacy and Linus Pauling Institute, Oregon State University, Corvallis, OR 97331, United States
| | - Yasmeen M Nkrumah-Elie
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy, University of Colorado Anschutz Medical Campus, Denver, CO 80045, United States
| | - Gregory D Gonnerman
- Department of Environmental and Molecular Toxicology, Environmental Health Sciences Center, Sinnhuber Aquatic Research Laboratory, Oregon State University, Corvallis, OR 97331, United States
| | - Jan F Stevens
- College of Pharmacy and Linus Pauling Institute, Oregon State University, Corvallis, OR 97331, United States
| | - Robert L Tanguay
- Department of Environmental and Molecular Toxicology, Environmental Health Sciences Center, Sinnhuber Aquatic Research Laboratory, Oregon State University, Corvallis, OR 97331, United States.
| |
Collapse
|
35
|
Choi J, Leonard SW, Kasper K, McDougall M, Stevens JF, Tanguay RL, Traber MG. Novel function of vitamin E in regulation of zebrafish (Danio rerio) brain lysophospholipids discovered using lipidomics. J Lipid Res 2015; 56:1182-90. [PMID: 25855633 DOI: 10.1194/jlr.m058941] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2015] [Indexed: 01/22/2023] Open
Abstract
We hypothesized that brains from vitamin E-deficient (E-) zebrafish (Danio rerio) would undergo increased lipid peroxidation because they contain highly polyunsaturated fatty acids, thus susceptible lipids could be identified. Brains from zebrafish fed for 9 months defined diets without (E-) or with (E+) added vitamin E (500 mg RRR-α-tocopheryl acetate per kilogram diet) were studied. Using an untargeted approach, 1-hexadecanoyl-2-docosahexaenoyl-sn-glycero-3-phosphocholine [DHA-PC 38:6, PC 16:0/22:6]was the lipid that showed the most significant and greatest fold-differences between groups. DHA-PC concentrations were approximately 1/3 lower in E- (4.3 ± 0.6 mg/g) compared with E+ brains (6.5 ± 0.9 mg/g, mean ± SEM, n = 10 per group, P = 0.04). Using lipidomics, 155 lipids in brain extracts were identified. Only four phospholipids (PLs) were different (P < 0.05) between groups; they were lower in E- brains and contained DHA with DHA-PC 38:6 at the highest abundances. Moreover, hydroxy-DHA-PC 38:6 was increased in E- brains (P = 0.0341) supporting the hypothesis of DHA peroxidation. More striking was the depletion in E- brains of nearly 60% of 19 different lysophospholipids (lysoPLs) (combined P = 0.0003), which are critical for membrane PL remodeling. Thus, E- brains contained fewer DHA-PLs, more hydroxy-DHA-PCs, and fewer lysoPLs, suggesting that lipid peroxidation depletes membrane DHA-PC and homeostatic mechanisms to repair the damage resulting in lysoPL depletion.
Collapse
Affiliation(s)
- Jaewoo Choi
- Linus Pauling Institute, Oregon State University, Corvallis, OR 97331 College of Pharmacy, Oregon State University, Corvallis, OR 97331
| | - Scott W Leonard
- Linus Pauling Institute, Oregon State University, Corvallis, OR 97331
| | - Katherine Kasper
- Linus Pauling Institute, Oregon State University, Corvallis, OR 97331 College of Public Health and Human Sciences, Oregon State University, Corvallis, OR 97331
| | - Melissa McDougall
- Linus Pauling Institute, Oregon State University, Corvallis, OR 97331 College of Public Health and Human Sciences, Oregon State University, Corvallis, OR 97331
| | - Jan F Stevens
- Linus Pauling Institute, Oregon State University, Corvallis, OR 97331 College of Pharmacy, Oregon State University, Corvallis, OR 97331 Environmental Health Sciences Center, Oregon State University, Corvallis, OR 97331
| | - Robert L Tanguay
- Environmental and Molecular Toxicology, Oregon State University, Corvallis, OR 97331 Environmental Health Sciences Center, Oregon State University, Corvallis, OR 97331
| | - Maret G Traber
- Linus Pauling Institute, Oregon State University, Corvallis, OR 97331 College of Public Health and Human Sciences, Oregon State University, Corvallis, OR 97331 Environmental Health Sciences Center, Oregon State University, Corvallis, OR 97331
| |
Collapse
|
36
|
Santoro MM. Zebrafish as a model to explore cell metabolism. Trends Endocrinol Metab 2014; 25:546-54. [PMID: 24997878 DOI: 10.1016/j.tem.2014.06.003] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2014] [Revised: 06/04/2014] [Accepted: 06/10/2014] [Indexed: 12/20/2022]
Abstract
Cell metabolism plays a key role in many essential biological processes. The recent availability of novel technologies and organisms to model cell metabolism in vivo is expanding current knowledge of cell metabolism. In this context, the zebrafish (Danio rerio) is emerging as a valuable model system to learn about the metabolic routes critical for cellular homeostasis. Here, the most recent methods and studies on cell metabolism are summarized, which support the overall value for the zebrafish model system not only to study metabolism but also metabolic disease states. It is envisioned that this small vertebrate system will help in the understanding of pathogenesis for numerous metabolic-related disorders in humans and in the identification of their therapeutic treatments.
Collapse
Affiliation(s)
- Massimo M Santoro
- Laboratory of Endothelial Molecular Biology, Vesalius Research Center, Department of Oncology, University of Leuven, Leuven, B-3000, Belgium; Laboratory of Endothelial Molecular Biology, Vesalius Research Center, VIB, Leuven, B-3000, Belgium.
| |
Collapse
|
37
|
Miller GW, Truong L, Barton CL, Labut EM, Lebold KM, Traber MG, Tanguay RL. The influences of parental diet and vitamin E intake on the embryonic zebrafish transcriptome. COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY D-GENOMICS & PROTEOMICS 2014; 10:22-9. [PMID: 24657723 DOI: 10.1016/j.cbd.2014.02.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2013] [Revised: 02/15/2014] [Accepted: 02/20/2014] [Indexed: 12/13/2022]
Abstract
The composition of the typical commercial diet fed to zebrafish can dramatically vary. By utilizing defined diets we sought to answer two questions: 1) How does the embryonic zebrafish transcriptome change when the parental adults are fed a commercial lab diet compared with a sufficient, defined diet (E+)? 2) Does a vitamin E-deficient parental diet (E-) further change the embryonic transcriptome? We conducted a global gene expression study using embryos from zebrafish fed a commercial (Lab), an E+ or an E- diet. To capture differentially expressed transcripts prior to onset of overt malformations observed in E- embryos at 48h post-fertilization (hpf), embryos were collected from each group at 36hpf. Lab embryos differentially expressed (p<0.01) 946 transcripts compared with the E+ embryos, and 2656 transcripts compared with the E- embryos. The differences in protein, fat and micronutrient intakes in zebrafish fed the Lab compared with the E+ diet demonstrate that despite overt morphologic consistency, significant differences in gene expression occurred. Moreover, functional analysis of the significant transcripts in the E- embryos suggested perturbed energy metabolism, leading to overt malformations and mortality. Thus, these findings demonstrate that parental zebrafish diet has a direct impact on the embryonic transcriptome.
Collapse
Affiliation(s)
- Galen W Miller
- Linus Pauling Institute, Oregon State University, Corvallis, OR 97331, USA; Molecular and Cellular Biology Program, Oregon State University, Corvallis, OR 97331, USA
| | - Lisa Truong
- Department of Environmental and Molecular Toxicology, Oregon State University, Corvallis, OR 97331, USA
| | - Carrie L Barton
- Environmental Health Sciences Center, Oregon State University, Corvallis, OR 97331, USA
| | - Edwin M Labut
- Linus Pauling Institute, Oregon State University, Corvallis, OR 97331, USA
| | - Katie M Lebold
- Linus Pauling Institute, Oregon State University, Corvallis, OR 97331, USA; School of Biological and Population Health Sciences, Oregon State University, Corvallis, OR 97331, USA
| | - Maret G Traber
- Linus Pauling Institute, Oregon State University, Corvallis, OR 97331, USA; Environmental Health Sciences Center, Oregon State University, Corvallis, OR 97331, USA; School of Biological and Population Health Sciences, Oregon State University, Corvallis, OR 97331, USA
| | - Robert L Tanguay
- Department of Environmental and Molecular Toxicology, Oregon State University, Corvallis, OR 97331, USA; Environmental Health Sciences Center, Oregon State University, Corvallis, OR 97331, USA.
| |
Collapse
|
38
|
Motorykin I, Traber MG, Tanguay RL, Maier CS. Proteome-driven elucidation of adaptive responses to combined vitamin E and C deficiency in zebrafish. J Proteome Res 2014; 13:1647-56. [PMID: 24476500 PMCID: PMC3993953 DOI: 10.1021/pr401108d] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The purpose of this study was to determine the system-wide consequences of deficiencies in two essential micronutrients, vitamins E and C, on the proteome using zebrafish (Danio rerio) as one of the few vertebrate models that similar to humans cannot synthesize vitamin C. We describe a label-free proteomics workflow to detect changes in protein abundance estimates dependent on vitamin regimes. We used ion-mobility-enhanced data-independent tandem mass spectrometry to determine differential regulation of proteins in response to low dietary levels of vitamin C with or without vitamin E. The detection limit of the method was as low as 20 amol, and the dynamic range was five orders of magnitude for the protein-level estimates. On the basis of the quantitative changes obtained, we built a network of protein interactions that reflect the whole organism's response to vitamin C deficiency. The proteomics-driven study revealed that in vitamin-E-deficient fish, vitamin C deficiency is associated with induction of stress response, astrogliosis, and a shift from glycolysis to glutaminolysis as an alternative mechanism to satisfy cellular energy requirements.
Collapse
Affiliation(s)
- Ievgen Motorykin
- Department of Chemistry, Oregon State University , 153 Gilbert Hall, Corvallis, Oregon 97331, United States
| | | | | | | |
Collapse
|
39
|
Fang L, Liu C, Miller YI. Zebrafish models of dyslipidemia: relevance to atherosclerosis and angiogenesis. Transl Res 2014; 163:99-108. [PMID: 24095954 PMCID: PMC3946603 DOI: 10.1016/j.trsl.2013.09.004] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/08/2013] [Revised: 09/07/2013] [Accepted: 09/10/2013] [Indexed: 01/07/2023]
Abstract
Lipid and lipoprotein metabolism in zebrafish and in humans are remarkably similar. Zebrafish express all major nuclear receptors, lipid transporters, apolipoproteins and enzymes involved in lipoprotein metabolism. Unlike mice, zebrafish express cetp and the Cetp activity is detected in zebrafish plasma. Feeding zebrafish a high cholesterol diet, without any genetic intervention, results in significant hypercholesterolemia and robust lipoprotein oxidation, making zebrafish an attractive animal model to study mechanisms relevant to early development of human atherosclerosis. These studies are facilitated by the optical transparency of zebrafish larvae and the availability of transgenic zebrafish expressing fluorescent proteins in endothelial cells and macrophages. Thus, vascular processes can be monitored in live animals. In this review article, we discuss recent advances in using dyslipidemic zebrafish in atherosclerosis-related studies. We also summarize recent work connecting lipid metabolism with regulation of angiogenesis, the work that considerably benefited from using the zebrafish model. These studies uncovered the role of aibp, abca1, abcg1, mtp, apoB, and apoC2 in regulation of angiogenesis in zebrafish and paved the way for future studies in mammals, which may suggest new therapeutic approaches to modulation of excessive or diminished angiogenesis contributing to the pathogenesis of human disease.
Collapse
Affiliation(s)
- Longhou Fang
- Department of Medicine, University of California, San Diego, La Jolla, Calif
| | - Chao Liu
- Department of Medicine, University of California, San Diego, La Jolla, Calif
| | - Yury I Miller
- Department of Medicine, University of California, San Diego, La Jolla, Calif.
| |
Collapse
|
40
|
Lebold KM, Traber MG. Interactions between α-tocopherol, polyunsaturated fatty acids, and lipoxygenases during embryogenesis. Free Radic Biol Med 2014; 66:13-9. [PMID: 23920314 PMCID: PMC3874081 DOI: 10.1016/j.freeradbiomed.2013.07.039] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2013] [Revised: 07/24/2013] [Accepted: 07/24/2013] [Indexed: 01/18/2023]
Abstract
α-Tocopherol is a lipid-soluble antioxidant that is specifically required for reproduction and embryogenesis. However, since its discovery, α-tocopherol's specific biologic functions, other than as an antioxidant, and the mechanism(s) mediating its requirement for embryogenesis remain unknown. As an antioxidant, α-tocopherol protects polyunsaturated fatty acids (PUFAs) from lipid peroxidation. α-Tocopherol is probably required during embryonic development to protect PUFAs that are crucial to development, specifically arachidonic (ARA) and docosahexaenoic (DHA) acids. Additionally, ARA and DHA are metabolized to bioactive lipid mediators via lipoxygenase enzymes, and α-tocopherol may directly protect, or it may mediate the production and/or actions of, these lipid mediators. In this review, we discuss how α-tocopherol (1) prevents the nonspecific, radical-mediated peroxidation of PUFAs, (2) functions within a greater antioxidant network to modulate the production and/or function of lipid mediators derived from 12- and 12/15-lipoxygenases, and (3) modulates 5-lipoxygenase activity. The application and implication of such interactions are discussed in the context of α-tocopherol requirements during embryogenesis.
Collapse
Affiliation(s)
- Katie M Lebold
- Linus Pauling Institute, Oregon State University, Corvallis, OR, 97331, USA; School of Biological and Population Health Sciences, Oregon State University, Corvallis, OR, 97331, USA
| | - Maret G Traber
- Linus Pauling Institute, Oregon State University, Corvallis, OR, 97331, USA; School of Biological and Population Health Sciences, Oregon State University, Corvallis, OR, 97331, USA.
| |
Collapse
|
41
|
Michels AJ, Frei B. Myths, artifacts, and fatal flaws: identifying limitations and opportunities in vitamin C research. Nutrients 2013; 5:5161-92. [PMID: 24352093 PMCID: PMC3875932 DOI: 10.3390/nu5125161] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2013] [Revised: 11/23/2013] [Accepted: 11/27/2013] [Indexed: 01/01/2023] Open
Abstract
Research progress to understand the role of vitamin C (ascorbic acid) in human health has been slow in coming. This is predominantly the result of several flawed approaches to study design, often lacking a full appreciation of the redox chemistry and biology of ascorbic acid. In this review, we summarize our knowledge surrounding the limitations of common approaches used in vitamin C research. In human cell culture, the primary issues are the high oxygen environment, presence of redox-active transition metal ions in culture media, and the use of immortalized cell lines grown in the absence of supplemental ascorbic acid. Studies in animal models are also limited due to the presence of endogenous ascorbic acid synthesis. Despite the use of genetically altered rodent strains lacking synthesis capacity, there are additional concerns that these models do not adequately recapitulate the effects of vitamin C deprivation and supplementation observed in humans. Lastly, several flaws in study design endemic to randomized controlled trials and other human studies greatly limit their conclusions and impact. There also is anecdotal evidence of positive and negative health effects of vitamin C that are widely accepted but have not been substantiated. Only with careful attention to study design and experimental detail can we further our understanding of the possible roles of vitamin C in promoting human health and preventing or treating disease.
Collapse
Affiliation(s)
- Alexander J Michels
- Linus Pauling Institute, 307 Linus Pauling Science Center, Oregon State University, Corvallis, OR 97331, USA.
| | | |
Collapse
|
42
|
Akizu N, Cantagrel V, Schroth J, Cai N, Vaux K, McCloskey D, Naviaux RK, Van Vleet J, Fenstermaker AG, Silhavy JL, Scheliga JS, Toyama K, Morisaki H, Sonmez FM, Celep F, Oraby A, Zaki MS, Al-Baradie R, Faqeih EA, Saleh MAM, Spencer E, Rosti RO, Scott E, Nickerson E, Gabriel S, Morisaki T, Holmes EW, Gleeson JG. AMPD2 regulates GTP synthesis and is mutated in a potentially treatable neurodegenerative brainstem disorder. Cell 2013; 154:505-17. [PMID: 23911318 DOI: 10.1016/j.cell.2013.07.005] [Citation(s) in RCA: 82] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2013] [Revised: 05/10/2013] [Accepted: 07/01/2013] [Indexed: 01/03/2023]
Abstract
Purine biosynthesis and metabolism, conserved in all living organisms, is essential for cellular energy homeostasis and nucleic acid synthesis. The de novo synthesis of purine precursors is under tight negative feedback regulation mediated by adenosine and guanine nucleotides. We describe a distinct early-onset neurodegenerative condition resulting from mutations in the adenosine monophosphate deaminase 2 gene (AMPD2). Patients have characteristic brain imaging features of pontocerebellar hypoplasia (PCH) due to loss of brainstem and cerebellar parenchyma. We found that AMPD2 plays an evolutionary conserved role in the maintenance of cellular guanine nucleotide pools by regulating the feedback inhibition of adenosine derivatives on de novo purine synthesis. AMPD2 deficiency results in defective GTP-dependent initiation of protein translation, which can be rescued by administration of purine precursors. These data suggest AMPD2-related PCH as a potentially treatable early-onset neurodegenerative disease.
Collapse
Affiliation(s)
- Naiara Akizu
- Neurogenetics Laboratory, Institute for Genomic Medicine, Rady Children's Hospital, Howard Hughes Medical Institute, University of California, San Diego, La Jolla, CA 92093, USA
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
43
|
Perroud B, Jafar-Nejad P, Wikoff WR, Gatchel JR, Wang L, Barupal DK, Crespo-Barreto J, Fiehn O, Zoghbi HY, Kaddurah-Daouk R. Pharmacometabolomic signature of ataxia SCA1 mouse model and lithium effects. PLoS One 2013; 8:e70610. [PMID: 23936457 PMCID: PMC3732229 DOI: 10.1371/journal.pone.0070610] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2013] [Accepted: 06/21/2013] [Indexed: 02/03/2023] Open
Abstract
We have shown that lithium treatment improves motor coordination in a spinocerebellar ataxia type 1 (SCA1) disease mouse model (Sca1(154Q/+)). To learn more about disease pathogenesis and molecular contributions to the neuroprotective effects of lithium, we investigated metabolomic profiles of cerebellar tissue and plasma from SCA1-model treated and untreated mice. Metabolomic analyses of wild-type and Sca1(154Q/+) mice, with and without lithium treatment, were performed using gas chromatography time-of-flight mass spectrometry and BinBase mass spectral annotations. We detected 416 metabolites, of which 130 were identified. We observed specific metabolic perturbations in Sca1(154Q/+) mice and major effects of lithium on metabolism, centrally and peripherally. Compared to wild-type, Sca1(154Q/+) cerebella metabolic profile revealed changes in glucose, lipids, and metabolites of the tricarboxylic acid cycle and purines. Fewer metabolic differences were noted in Sca1(154Q/+) mouse plasma versus wild-type. In both genotypes, the major lithium responses in cerebellum involved energy metabolism, purines, unsaturated free fatty acids, and aromatic and sulphur-containing amino acids. The largest metabolic difference with lithium was a 10-fold increase in ascorbate levels in wild-type cerebella (p<0.002), with lower threonate levels, a major ascorbate catabolite. In contrast, Sca1(154Q/+) mice that received lithium showed no elevated cerebellar ascorbate levels. Our data emphasize that lithium regulates a variety of metabolic pathways, including purine, oxidative stress and energy production pathways. The purine metabolite level, reduced in the Sca1(154Q/+) mice and restored upon lithium treatment, might relate to lithium neuroprotective properties.
Collapse
Affiliation(s)
- Bertrand Perroud
- UC Davis Genome Center, University of California Davis, Davis, California, United States of America
| | - Paymaan Jafar-Nejad
- Jan and Dan Duncan Neurological Research Institute at Texas Children's Hospital, Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, United States of America
| | - William R. Wikoff
- UC Davis Genome Center, University of California Davis, Davis, California, United States of America
| | - Jennifer R. Gatchel
- Jan and Dan Duncan Neurological Research Institute at Texas Children's Hospital, Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, United States of America
| | - Lu Wang
- Department of Biostatistics, School of Public Health, University of California Los Angeles, Los Angeles, California, United States of America
| | - Dinesh K. Barupal
- UC Davis Genome Center, University of California Davis, Davis, California, United States of America
| | - Juan Crespo-Barreto
- Jan and Dan Duncan Neurological Research Institute at Texas Children's Hospital, Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, United States of America
| | - Oliver Fiehn
- UC Davis Genome Center, University of California Davis, Davis, California, United States of America
| | - Huda Y. Zoghbi
- Jan and Dan Duncan Neurological Research Institute at Texas Children's Hospital, Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, United States of America
- The Departments of Pediatrics, Neurology, and Neuroscience and the Howard Hughes Medical Institute, Baylor College of Medicine, Houston, Texas, United States of America
- * E-mail: (HZ); (RKD)
| | - Rima Kaddurah-Daouk
- Department of Psychiatry and Behavioral Sciences, Duke University Medical Center, Durham, North Carolina, United States of America
- * E-mail: (HZ); (RKD)
| |
Collapse
|
44
|
Kirkwood JS, Legette LL, Miranda CL, Jiang Y, Stevens JF. A metabolomics-driven elucidation of the anti-obesity mechanisms of xanthohumol. J Biol Chem 2013; 288:19000-13. [PMID: 23673658 DOI: 10.1074/jbc.m112.445452] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
Mild, mitochondrial uncoupling increases energy expenditure and can reduce the generation of reactive oxygen species (ROS). Activation of cellular, adaptive stress response pathways can result in an enhanced capacity to reduce oxidative damage. Together, these strategies target energy imbalance and oxidative stress, both underlying factors of obesity and related conditions such as type 2 diabetes. Here we describe a metabolomics-driven effort to uncover the anti-obesity mechanism(s) of xanthohumol (XN), a prenylated flavonoid from hops. Metabolomics analysis of fasting plasma from obese, Zucker rats treated with XN revealed decreases in products of dysfunctional fatty acid oxidation and ROS, prompting us to explore the effects of XN on muscle cell bioenergetics. At low micromolar concentrations, XN acutely increased uncoupled respiration in several different cell types, including myocytes. Tetrahydroxanthohumol also increased respiration, suggesting electrophilicity did not play a role. At higher concentrations, XN inhibited respiration in a ROS-dependent manner. In myocytes, time course metabolomics revealed acute activation of glutathione recycling and long term induction of glutathione synthesis as well as several other changes indicative of short term elevated cellular stress and a concerted adaptive response. Based on these findings, we hypothesize that XN may ameliorate metabolic syndrome, at least in part, through mitochondrial uncoupling and stress response induction. In addition, time course metabolomics appears to be an effective strategy for uncovering metabolic events that occur during a stress response.
Collapse
Affiliation(s)
- Jay S Kirkwood
- Linus Pauling Institute and the Department of Pharmaceutical Sciences, Oregon State University, Corvallis, Oregon 97331, USA
| | | | | | | | | |
Collapse
|
45
|
Lebold KM, Löhr CV, Barton CL, Miller GW, Labut EM, Tanguay RL, Traber MG. Chronic vitamin E deficiency promotes vitamin C deficiency in zebrafish leading to degenerative myopathy and impaired swimming behavior. Comp Biochem Physiol C Toxicol Pharmacol 2013; 157:382-9. [PMID: 23570751 PMCID: PMC3653440 DOI: 10.1016/j.cbpc.2013.03.007] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2012] [Revised: 03/30/2013] [Accepted: 03/30/2013] [Indexed: 11/25/2022]
Abstract
We hypothesized that zebrafish (Danio rerio) undergoing long-term vitamin E deficiency with marginal vitamin C status would develop myopathy resulting in impaired swimming. Zebrafish were fed for 1 y a defined diet without (E-) and with (E+) vitamin E (500 mg α-tocopherol/kg diet). For the last 150 days, dietary ascorbic acid concentrations were decreased from 3500 to 50 mg/kg diet and the fish sampled periodically to assess ascorbic acid concentrations. The ascorbic acid depletion curves were faster in the E- compared with E+ fish (P < 0.0001); the estimated half-life of depletion in the E- fish was 34 days, while in it was 55 days in the E+ fish. To assess swimming behavior, zebrafish were monitored individually following a "startle-response" stimulus, using computer and video technology. Muscle histopathology was assessed using hematoxylin and eosin staining on paramedian sections of fixed zebrafish. At study end, E- fish contained 300-fold less α-tocopherol (p < 0.0001), half the ascorbic acid (p = 0.0001) and 3-fold more malondialdehyde (p = 0.0005) than did E+ fish. During the first minute following a tap stimulus (p < 0.05), E+ fish swam twice as far as did E- fish. In the E- fish, the sluggish behavior was associated with a multifocal, polyphasic, degenerative myopathy of the skeletal muscle. The myopathy severity ranged from scattered acute necrosis to widespread fibrosis and was accompanied by increased anti-hydroxynonenal staining. Thus, vitamin E deficiency in zebrafish causes increased oxidative stress and a secondary depletion of ascorbic acid, resulting in severe damage to muscle tissue and impaired muscle function.
Collapse
Affiliation(s)
- Katie M Lebold
- Linus Pauling Institute, Oregon State University, Corvallis, OR 97331, USA
| | | | | | | | | | | | | |
Collapse
|
46
|
Pierce MR, Diasio DL, Rodrigues LM, Harrison FE, May JM. Combined vitamin C and E deficiency induces motor defects in gulo(-/-)/SVCT2(+/-) mice. Nutr Neurosci 2012; 16:160-73. [PMID: 23321552 DOI: 10.1179/1476830512y.0000000042] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
OBJECTIVES Key antioxidants, vitamins C and E, are necessary for normal brain development and neuronal function. In this study, we depleted both of these vitamins in two mouse models to determine if oxidative stress due to combined vitamin C and E dietary deficiency altered their neurological phenotype. The first model lacked both alleles for the Gulonolactone oxidase gene (Gulo(-/-)) and therefore was unable synthesize vitamin C. To obtain an additional cellular deficiency of vitamin C, the second model also lacked one allele for the cellular vitamin C transporter gene (Gulo(-/-)/SVCT2(+/-)). METHODS The experimental treatment was 16 weeks of vitamin E deprivation followed by 3 weeks of vitamin C deprivation. Mice were assessed for motor coordination deficits, vitamin levels, and oxidative stress biomarkers. RESULTS In the first model, defects in motor performance were more apparent in both vitamin C-deficient groups (VE+VC-, VE-VC-) compared to vitamin C-supplemented groups (VE+VC+, VE-VC+) regardless of vitamin E level. Analysis of brain cortex and liver confirmed decreases of at least 80% for each vitamin in mice on deficient diets. Vitamin E deficiency doubled oxidative stress biomarkers (F2-isoprostanes and malondialdehyde). In the second model, Gulo(-/-)/SVCT2(+/-) mice on the doubly deficient diets showed deficits in locomotor activity, Rota-rod performance, and other motor tasks, with no concomitant change in anxiety or spatial memory. DISCUSSION Vitamin E deficiency alone caused a modest oxidative stress in brain that did not affect motor performance. Adding a cellular deficit in vitamin C to dietary deprivation of both vitamins significantly impaired motor performance.
Collapse
Affiliation(s)
- Marquicia R Pierce
- Department of Molecular Physiology and Biophysics, Vanderbilt University, Nashville, TN 37232-0465, USA.
| | | | | | | | | |
Collapse
|
47
|
Fang L, Miller YI. Emerging applications for zebrafish as a model organism to study oxidative mechanisms and their roles in inflammation and vascular accumulation of oxidized lipids. Free Radic Biol Med 2012; 53:1411-20. [PMID: 22906686 PMCID: PMC3448821 DOI: 10.1016/j.freeradbiomed.2012.08.004] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/25/2012] [Revised: 07/16/2012] [Accepted: 08/02/2012] [Indexed: 10/28/2022]
Abstract
With the advent of genetic engineering, zebrafish (Danio rerio) were recognized as an attractive model organism to study many biological processes. Remarkably, the small size and optical transparency of zebrafish larvae enable high-resolution imaging of live animals. Zebrafish respond to various environmental and pathological factors with robust oxidative stress. In this article, we provide an overview of the molecular mechanisms involved in oxidative stress and antioxidant response in zebrafish. Existing applications of genetically encoded fluorescent sensors allow imaging, in real time, of the production of H(2)O(2) and studying its involvement in inflammatory responses, as well as activation of the oxidation-sensitive transcription factors HIF and NRF2. Oxidative stress, combined with hyperlipidemia, leads to oxidation of lipoproteins, the process that contributes significantly to the development of atherosclerosis in humans. Recent work found that feeding zebrafish a high-cholesterol diet results in hypercholesterolemia, vascular lipid accumulation, and extreme lipoprotein oxidation. Generation of a transgenic zebrafish expressing a green fluorescent protein-tagged human antibody to malondialdehyde (MDA)-modified LDL makes possible the in vivo visualization of MDA epitopes in the vascular wall and testing of the efficacy of antioxidants and dietary interventions. Thus, using zebrafish as a model organism provides important advantages in studying the roles of reactive oxygen species and lipid oxidation in basic biologic and pathologic processes.
Collapse
Affiliation(s)
- Longhou Fang
- Department of Medicine, University of California at San Diego, La Jolla, CA 92093, USA.
| | | |
Collapse
|