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Identification of novel single nucleotide polymorphism at thyroid hormone responsive (THRSP) gene of native goat breeds of India. Small Rumin Res 2018. [DOI: 10.1016/j.smallrumres.2017.07.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Warren JS, Oka SI, Zablocki D, Sadoshima J. Metabolic reprogramming via PPARα signaling in cardiac hypertrophy and failure: From metabolomics to epigenetics. Am J Physiol Heart Circ Physiol 2017. [PMID: 28646024 DOI: 10.1152/ajpheart.00103.2017] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Studies using omics-based approaches have advanced our knowledge of metabolic remodeling in cardiac hypertrophy and failure. Metabolomic analysis of the failing heart has revealed global changes in mitochondrial substrate metabolism. Peroxisome proliferator-activated receptor-α (PPARα) plays a critical role in synergistic regulation of cardiac metabolism through transcriptional control. Metabolic reprogramming via PPARα signaling in heart failure ultimately propagates into myocardial energetics. However, emerging evidence suggests that the expression level of PPARα per se does not always explain the energetic state in the heart. The transcriptional activities of PPARα are dynamic, yet highly coordinated. An additional level of complexity in the PPARα regulatory mechanism arises from its ability to interact with various partners, which ultimately determines the metabolic phenotype of the diseased heart. This review summarizes our current knowledge of the PPARα regulatory mechanisms in cardiac metabolism and the possible role of PPARα in epigenetic modifications in the diseased heart. In addition, we discuss how metabolomics can contribute to a better understanding of the role of PPARα in the progression of cardiac hypertrophy and failure.
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Affiliation(s)
- Junco Shibayama Warren
- Nora Eccles Harrison Cardiovascular Research and Training Institute, University of Utah, Salt Lake City, Utah; .,Department of Internal Medicine, University of Utah School of Medicine, Salt Lake City, Utah; and
| | - Shin-Ichi Oka
- Department of Cell Biology and Molecular Medicine, Rutgers New Jersey Medical School, Newark, New Jersey
| | - Daniela Zablocki
- Department of Cell Biology and Molecular Medicine, Rutgers New Jersey Medical School, Newark, New Jersey
| | - Junichi Sadoshima
- Department of Cell Biology and Molecular Medicine, Rutgers New Jersey Medical School, Newark, New Jersey
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Jiménez MJ, Bocos C, Panadero M, Herrera E. Fish oil diet in pregnancy and lactation reduces pup weight and modifies newborn hepatic metabolic adaptations in rats. Eur J Nutr 2015; 56:409-420. [PMID: 26578529 DOI: 10.1007/s00394-015-1091-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2015] [Accepted: 10/26/2015] [Indexed: 10/22/2022]
Abstract
PURPOSE To determine the effects of a diet containing fish oil (FD) during pregnancy and lactation in rats on the metabolic adaptations made by the offspring during early extrauterine life and to compare it to an olive oil diet (OD). METHODS Rats were mated and randomly allocated to OD or FD containing 10 % of the corresponding oil. During lactation, litters were adjusted to eight pups per dam. Fetuses of 20 days and pups of 0, 1, 10, 20 and 30 days of age were studied. RESULTS Body weight and length were lower in pups of the FD group from birth. The diet, milk, pups' plasma and liver of FD group had higher proportions of n-3 LCPUFA, but the content of arachidonic acid (ARA) was lower. Plasma glucose was higher, but unesterified fatty acids, triacylglycerols (TAG), 3-hydroxybutyrate and liver TAG in 1-day-old pups were lower in the FD group, and differences in some of these variables were also found in pups up to 30 days old. Liver lipoprotein lipase activity and mRNA expression, and the expression of carnitine palmitoyl transferase I, acyl-CoA oxidase and 3-hydroxy 3-methyl glutaryl-CoA synthase increased more at birth in pups of the FD group, but the expression of sterol regulatory element binding protein-1c and Δ6-desaturase mRNA was lower in the FD group. CONCLUSIONS Maternal intake of high n-3 LCPUFA retards postnatal development, which could be the result of impaired ARA synthesis, and affects hepatic metabolic adaptations to extrauterine life.
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Affiliation(s)
- Maria J Jiménez
- Departamento de Química y Bioquímica, Universidad San Pablo CEU, Ctra. Boadilla del Monte km 5.3, Boadilla del Monte, 28668, Madrid, Spain
| | - Carlos Bocos
- Departamento de Química y Bioquímica, Universidad San Pablo CEU, Ctra. Boadilla del Monte km 5.3, Boadilla del Monte, 28668, Madrid, Spain
| | - Maribel Panadero
- Departamento de Química y Bioquímica, Universidad San Pablo CEU, Ctra. Boadilla del Monte km 5.3, Boadilla del Monte, 28668, Madrid, Spain
| | - Emilio Herrera
- Departamento de Química y Bioquímica, Universidad San Pablo CEU, Ctra. Boadilla del Monte km 5.3, Boadilla del Monte, 28668, Madrid, Spain.
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Oh DY, Lee YS, La BM, Lee JY, Park YS, Lee JH, Ha JJ, Yi JK, Kim BK, Yeo JS. Identification of exonic nucleotide variants of the thyroid hormone responsive protein gene associated with carcass traits and Fatty Acid composition in korean cattle. ASIAN-AUSTRALASIAN JOURNAL OF ANIMAL SCIENCES 2014; 27:1373-80. [PMID: 25178286 PMCID: PMC4150167 DOI: 10.5713/ajas.2014.14101] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/12/2014] [Revised: 03/26/2014] [Accepted: 05/06/2014] [Indexed: 11/27/2022]
Abstract
The thyroid hormone responsive protein (THRSP) gene is a functional gene that can be used to indicate the fatty acid compositions. This study investigates the relationships of exonic single nucleotide polymorphisms (SNPs) in the THRSP gene and fatty acid composition of muscle fat and marbling score in the 612 Korean cattle. The relationships between fatty acid composition and eight SNPs in the THRSP gene (g.78 G>A, g.173 C>T, g.184 C>T, g.190 C>A, g.194 C>T, g.277 C>G, g.283 T>G and g.290 T>G) were investigated, and according to the results, two SNPs (g.78 G>A and g.184 C>T) in exon 1 were associated with fatty acid composition. The GG and CC genotypes of g.78 G>A and g.184 C>T had higher unsaturated fatty acid (UFA) and monounsaturated fatty acid (MUFA) content (p<0.05). In addition, the ht1*ht1 group (Val/Ala haplotype) in a linkage disequilibrium increased MUFAs and marbling scores for carcass traits (p<0.05). As a result, g.78 G>A and g.184 C>T had significantly relationships with UFAs and MUFAs. Two SNPs in the THRSP gene affected fatty acid composition, suggesting that GG and CC genotypes and the ht1*ht1 group (Val/Ala haplotype) can be markers to genetically improve the quality and flavor of beef.
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Affiliation(s)
- Dong-Yep Oh
- Institute of Green Bio Science and Technology, Seoul National University, Pyeongchang 232-916, Korea
| | - Yoon-Seok Lee
- Institute of Green Bio Science and Technology, Seoul National University, Pyeongchang 232-916, Korea
| | - Boo-Mi La
- School of Biotechnology, Yeungnam University, Gyeongsan 712-749, Korea
| | - Jea-Young Lee
- Department of Statistics, Yeungnam University, Gyeongsan 712-749, Korea
| | - Yong-Soo Park
- Department of Equine Industry, Korea National College of Agriculture and Fisheries, Hwaseong 445-760, Korea
| | - Ji-Hong Lee
- Gyeongbuk Provincial College, Yecheon 750-767, Korea
| | - Jae-Jung Ha
- Institute of Green Bio Science and Technology, Seoul National University, Pyeongchang 232-916, Korea
| | - Jun-Koo Yi
- Institute of Green Bio Science and Technology, Seoul National University, Pyeongchang 232-916, Korea
| | - Byung-Ki Kim
- Institute of Green Bio Science and Technology, Seoul National University, Pyeongchang 232-916, Korea
| | - Jung-Sou Yeo
- School of Biotechnology, Yeungnam University, Gyeongsan 712-749, Korea
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Ehara T, Kamei Y, Takahashi M, Yuan X, Kanai S, Tamura E, Tanaka M, Yamazaki T, Miura S, Ezaki O, Suganami T, Okano M, Ogawa Y. Role of DNA methylation in the regulation of lipogenic glycerol-3-phosphate acyltransferase 1 gene expression in the mouse neonatal liver. Diabetes 2012; 61:2442-50. [PMID: 22721968 PMCID: PMC3447899 DOI: 10.2337/db11-1834] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2012] [Accepted: 04/19/2012] [Indexed: 12/17/2022]
Abstract
The liver is a major organ of lipid metabolism, which is markedly changed in response to physiological nutritional demand; however, the regulation of hepatic lipogenic gene expression in early life is largely unknown. In this study, we show that expression of glycerol-3-phosphate acyltransferase 1 (GPAT1; Gpam), a rate-limiting enzyme of triglyceride biosynthesis, is regulated in the mouse liver by DNA methylation, an epigenetic modification involved in the regulation of a diverse range of biological processes in mammals. In the neonatal liver, DNA methylation of the Gpam promoter, which is likely to be induced by Dnmt3b, inhibited recruitment of the lipogenic transcription factor sterol regulatory element-binding protein-1c (SREBP-1c), whereas in the adult, decreased DNA methylation resulted in active chromatin conformation, allowing recruitment of SREBP-1c. Maternal overnutrition causes decreased Gpam promoter methylation with increased GPAT1 expression and triglyceride content in the pup liver, suggesting that environmental factors such as nutritional conditions can affect DNA methylation in the liver. This study is the first detailed analysis of the DNA-methylation-dependent regulation of the triglyceride biosynthesis gene Gpam, thereby providing new insight into the molecular mechanism underlying the epigenetic regulation of metabolic genes and thus metabolic diseases.
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Affiliation(s)
- Tatsuya Ehara
- Department of Molecular Medicine and Metabolism, Medical Research Institute, Tokyo Medical and Dental University, Tokyo, Japan
- Functional Food Research Department, Food Science and Technology Institute, Morinaga Milk Industry Co., Ltd., Kanagawa, Japan
| | - Yasutomi Kamei
- Department of Molecular Medicine and Metabolism, Medical Research Institute, Tokyo Medical and Dental University, Tokyo, Japan
- Department of Organ Network and Metabolism, Medical Research Institute, Tokyo Medical and Dental University, Tokyo, Japan
| | - Mayumi Takahashi
- Department of Molecular Medicine and Metabolism, Medical Research Institute, Tokyo Medical and Dental University, Tokyo, Japan
| | - Xunmei Yuan
- Department of Molecular Medicine and Metabolism, Medical Research Institute, Tokyo Medical and Dental University, Tokyo, Japan
| | - Sayaka Kanai
- Department of Molecular Medicine and Metabolism, Medical Research Institute, Tokyo Medical and Dental University, Tokyo, Japan
| | - Erina Tamura
- Department of Molecular Medicine and Metabolism, Medical Research Institute, Tokyo Medical and Dental University, Tokyo, Japan
| | - Miyako Tanaka
- Department of Molecular Medicine and Metabolism, Medical Research Institute, Tokyo Medical and Dental University, Tokyo, Japan
- Department of Organ Network and Metabolism, Medical Research Institute, Tokyo Medical and Dental University, Tokyo, Japan
| | - Tomomi Yamazaki
- Nutritional Science Program, National Institute of Health and Nutrition, Tokyo, Japan
| | - Shinji Miura
- Nutritional Science Program, National Institute of Health and Nutrition, Tokyo, Japan
| | - Osamu Ezaki
- Nutritional Science Program, National Institute of Health and Nutrition, Tokyo, Japan
| | - Takayoshi Suganami
- Department of Molecular Medicine and Metabolism, Medical Research Institute, Tokyo Medical and Dental University, Tokyo, Japan
| | - Masaki Okano
- Laboratory for Mammalian Epigenetic Studies, Center for Developmental Biology, RIKEN, Kobe, Japan
| | - Yoshihiro Ogawa
- Department of Molecular Medicine and Metabolism, Medical Research Institute, Tokyo Medical and Dental University, Tokyo, Japan
- Department of Molecular Endocrinology and Metabolism, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
- Global Center of Excellence Program, International Research Center for Molecular Science in Tooth and Bone Diseases, Medical Research Institute, Tokyo Medical and Dental University, Tokyo, Japan
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Aipoalani DL, O'Callaghan BL, Mashek DG, Mariash CN, Towle HC. Overlapping roles of the glucose-responsive genes, S14 and S14R, in hepatic lipogenesis. Endocrinology 2010; 151:2071-7. [PMID: 20233797 PMCID: PMC2869262 DOI: 10.1210/en.2009-1058] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The Spot 14 (S14; Thrsp) gene has been implicated in supporting regulated lipogenesis in mammals. S14 gene expression in liver is controlled by a wide variety of hormones and dietary factors in parallel with the major lipogenic enzyme genes. In addition, mice deleted for the S14 gene display reduced de novo lipogenesis in the lactating mammary gland. However, no decrease in hepatic lipogenesis was observed in the S14 null mouse. It was postulated that this difference could be due to the expression of a paralogous gene called S14R (S14 related; Mig12) in the liver but not mammary tissue. To test this hypothesis, we used small interfering RNA to simultaneously reduce levels of S14 and S14R in cultured primary hepatocytes. We found that rates of lipogenesis were decreased by approximately 65% in cells treated with insulin and high glucose. This reduction was associated with a decrease in total liver triacylglycerols and an altered morphology of lipid droplets. Expression of either S14 or S14R gene products was sufficient to fully restore normal lipogenesis. No change in the hepatic expression of other major lipogenic enzyme genes occurred during manipulation of S14 and/or S14R levels. These data support the hypothesis that both S14 and S14R are directly involved in supporting hepatic lipogenesis and that the two proteins play overlapping roles in this process.
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Affiliation(s)
- Derrick L Aipoalani
- Department of Biochemistry, Molecular Biology, and Biophysics, Minneapolis, Minnesota 55455, USA
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Zhi J, Xu G, Rubin CT, Hadjiargyrou M. The lipogenic gene spot 14 is activated in bone by disuse yet remains unaffected by a mechanical signal anabolic to the skeleton. Calcif Tissue Int 2008; 82:148-54. [PMID: 18219437 PMCID: PMC3640314 DOI: 10.1007/s00223-007-9100-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2007] [Accepted: 12/26/2007] [Indexed: 12/12/2022]
Abstract
There is increasing evidence of the interaction of fat and bone metabolism and the role mechanical signals may have in regulating the adaptation of these tissues. The rat hindlimb suspension model of disuse osteoporosis was used to identify genes differentially expressed relative to normal weight-bearing bones and whether the relative expression of these genes is sensitive to anabolic mechanical stimuli. Ten days of hindlimb suspension suppressed percent labeled surface and bone volume/trabecular volume of the proximal tibia by 46% and 69%, respectively, compared to controls. Differential display polymerase chain reaction (DD-PCR) and Northern blot analysis identified and verified, respectively, that expression of Spot 14 (S14), an important gene in lipogenesis, was upregulated fourfold in tibiae of tail-suspended animals compared to long-term controls. Anabolic mechanical stimulation (45 Hz, 10 min/day at 0.25 g) did not show a statistically significant effect on S14 expression. These results indicate a potential role for lipogenic genes during bone loss caused by disuse, further supporting a link between bone and fat tissue, and, considering the insensitivity of these genes to mechanical signals which promote bone formation in the skeleton, the independence of resorptive and formative processes in bone.
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Affiliation(s)
- Jizu Zhi
- Department of Biomedical Engineering, Stony Brook University, Stony Brook, NY 11794-2580, USA.
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Sanchez-Rodriguez J, Kaninda-Tshilumbu J, Santos A, Perez-Castillo A. The spot 14 protein inhibits growth and induces differentiation and cell death of human MCF-7 breast cancer cells. Biochem J 2005; 390:57-65. [PMID: 15819613 PMCID: PMC1188266 DOI: 10.1042/bj20042080] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The S14 (spot 14) gene encodes a protein that is predominantly expressed in lipogenic tissues, such as the liver, white and brown adipose tissues and the lactating mammary glands. Accumulated evidence suggests that S14 could play an important role in the induction of lipogenic enzymes. In humans, the S14 locus resides in the chromosome region 11q13, which is frequently amplified in breast tumours, and as a result, it has been suggested that this protein could play a role in the metabolism and growth of these kinds of tumours. In the present study, we have examined the effects of S14 overexpression in MCF-7 human breast cancer cells. We found that S14 causes (i) an inhibition of cell proliferation and of anchorage-independent growth, (ii) a marked reduction in the number of viable cells and (iii) the induction of differentiation and cell death of these cells. The inhibition of cell growth was associated with a decrease in the expression of cyclin D1 and a reduction of cyclin D1 promoter activity. Increased expression of S14 also caused the accumulation of cytochrome c in the cytosol and loss of mitochondrial membrane potential. These findings suggest that S14 may function as an important modulator of tumorigenesis in human breast by decreasing cell growth and inducing cell death and differentiation.
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Affiliation(s)
- Jinny Sanchez-Rodriguez
- *Instituto de Investigaciones Biomédicas, Consejo Superior de Investigaciones Científicas-Universidad Autónoma de Madrid, Madrid, Spain
- †Sección de Investigaciones Metabólicas y Nutricionales, Instituto de Medicina Experimental, Universidad Central de Venezuela, Ciudad Universitania, Caracas DC, Venezuela
| | - John P. Kaninda-Tshilumbu
- *Instituto de Investigaciones Biomédicas, Consejo Superior de Investigaciones Científicas-Universidad Autónoma de Madrid, Madrid, Spain
| | - Angel Santos
- ‡Departamento de Bioquímica y Biología Molecular, Facultad de Medicina, Universidad Complutense de Madrid, Madrid, Spain
- Correspondence may be addressed to either of these authors (email or )
| | - Ana Perez-Castillo
- *Instituto de Investigaciones Biomédicas, Consejo Superior de Investigaciones Científicas-Universidad Autónoma de Madrid, Madrid, Spain
- Correspondence may be addressed to either of these authors (email or )
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Strobl W, Gorder NL, Lin-Lee YC, Gotto AM, Patsch W. Role of thyroid hormones in apolipoprotein A-I gene expression in rat liver. J Clin Invest 1990; 85:659-67. [PMID: 2107206 PMCID: PMC296480 DOI: 10.1172/jci114489] [Citation(s) in RCA: 46] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
To study the regulation of hepatic apo A-I gene expression, we measured synthesis and abundance of cellular apo A-I mRNA and its nuclear precursors in livers of hypothyroid and hyperthyroid rats. In hypothyroid animals, both synthesis and abundance of apo A-I mRNA was reduced to half of control values. After injection of a receptor-saturating dose of triiodothyronine into euthyroid rats, apo A-I gene transcription increased at 20 min, reached a maximum of 179% of control (P less than 0.01) at 3.5 h, and remained elevated for up to 48 h. The abundance of nuclear and total cellular apo A-I mRNA increased at 1 and 2 h, respectively, and exceeded the levels expected from enhanced transcription more than two fold at 24 h after hormone injection. Upon chronic administration of thyroid hormones, levels of nuclear and cytoplasmic apo A-I mRNA remained elevated but transcription of the apo A-I gene fell to 42% of control (P less than 0.01). Thus, thyroid hormones rapidly stimulate apo A-I gene transcription. Posttranscriptional events leading to increased stability of nuclear apo A-I RNA precursors become the principal mechanism for enhanced gene expression in chronic hyperthyroidism and may cause feedback inhibition of apo A-I gene transcription. Our results furthermore imply that the majority of hepatic nuclear apo A-I RNA precursors are degraded in euthyroid animals.
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Affiliation(s)
- W Strobl
- Department of Medicine, Baylor College of Medicine, Houston, Texas 77030
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