1
|
Din ZU, Cui B, Wang C, Zhang X, Mehmood A, Peng F, Liu Q. Crosstalk between lipid metabolism and EMT: emerging mechanisms and cancer therapy. Mol Cell Biochem 2024:10.1007/s11010-024-04995-1. [PMID: 38622439 DOI: 10.1007/s11010-024-04995-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2023] [Accepted: 03/19/2024] [Indexed: 04/17/2024]
Abstract
Lipids are the key component of all membranes composed of a variety of molecules that transduce intracellular signaling and provide energy to the cells in the absence of nutrients. Alteration in lipid metabolism is a major factor for cancer heterogeneity and a newly identified cancer hallmark. Reprogramming of lipid metabolism affects the diverse cancer phenotypes, especially epithelial-mesenchymal transition (EMT). EMT activation is considered to be an essential step for tumor metastasis, which exhibits a crucial role in the biological processes including development, wound healing, and stem cell maintenance, and has been widely reported to contribute pathologically to cancer progression. Altered lipid metabolism triggers EMT and activates multiple EMT-associated oncogenic pathways. Although the role of lipid metabolism-induced EMT in tumorigenesis is an attractive field of research, there are still significant gaps in understanding the underlying mechanisms and the precise contributions of this interplay. Further study is needed to clarify the specific molecular mechanisms driving the crosstalk between lipid metabolism and EMT, as well as to determine the potential therapeutic implications. The increased dependency of tumor cells on lipid metabolism represents a novel therapeutic target, and targeting altered lipid metabolism holds promise as a strategy to suppress EMT and ultimately inhibit metastasis.
Collapse
Grants
- 2022YFA1104002 National Key R&D Program of China
- 2022YFA1104002 National Key R&D Program of China
- 2022YFA1104002 National Key R&D Program of China
- 2022YFA1104002 National Key R&D Program of China
- No. 82373096, No. 82273480, No. 82002960, No. 82003141 National Natural Science Foundation of China
- No. 82373096, No. 82273480, No. 82002960, No. 82003141 National Natural Science Foundation of China
- No. 82373096, No. 82273480, No. 82002960, No. 82003141 National Natural Science Foundation of China
- No. 82373096, No. 82273480, No. 82002960, No. 82003141 National Natural Science Foundation of China
- 2023JH2/101600019 to FP Applied Basic Research Planning Project of Liaoning
- 2023JH2/101600019 to FP Applied Basic Research Planning Project of Liaoning
- 2023JH2/101600019 to FP Applied Basic Research Planning Project of Liaoning
- 2023JH2/101600019 to FP Applied Basic Research Planning Project of Liaoning
- 2023RY013 Science and Technology Talent Innovation Support Policy Implementation Program of Dalian-Outstanding young scientific and technological talents
- 2023RY013 Science and Technology Talent Innovation Support Policy Implementation Program of Dalian-Outstanding young scientific and technological talents
- 2023RY013 Science and Technology Talent Innovation Support Policy Implementation Program of Dalian-Outstanding young scientific and technological talents
- 2023RY013 Science and Technology Talent Innovation Support Policy Implementation Program of Dalian-Outstanding young scientific and technological talents
- 2021RQ004 Dalian High-level Talents Innovation Support Program-Young Science and Technology Star
- 2021RQ004 Dalian High-level Talents Innovation Support Program-Young Science and Technology Star
- 2021RQ004 Dalian High-level Talents Innovation Support Program-Young Science and Technology Star
- 2021RQ004 Dalian High-level Talents Innovation Support Program-Young Science and Technology Star
Collapse
Affiliation(s)
- Zaheer Ud Din
- Institute of Cancer Stem Cell, Dalian Medical University, 9 Western Section, Lvshun South Street, Lvshunkou District, Dalian, 116044, Liaoning, China
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Institute of Aging Research, Guangdong Medical University, Dongguan, China
| | - Bai Cui
- Institute of Cancer Stem Cell, Dalian Medical University, 9 Western Section, Lvshun South Street, Lvshunkou District, Dalian, 116044, Liaoning, China
- State Key Laboratory of Oncology in South China, Cancer Center, Sun Yat-Sen University, Guangzhou, 510060, China
| | - Cenxin Wang
- Institute of Cancer Stem Cell, Dalian Medical University, 9 Western Section, Lvshun South Street, Lvshunkou District, Dalian, 116044, Liaoning, China
| | - Xiaoyu Zhang
- Institute of Cancer Stem Cell, Dalian Medical University, 9 Western Section, Lvshun South Street, Lvshunkou District, Dalian, 116044, Liaoning, China
| | - Arshad Mehmood
- Department of Neurology, The Second Hospital of Hebei Medical University, Shijiazhuang, 050000, China
| | - Fei Peng
- Institute of Cancer Stem Cell, Dalian Medical University, 9 Western Section, Lvshun South Street, Lvshunkou District, Dalian, 116044, Liaoning, China.
| | - Quentin Liu
- Institute of Cancer Stem Cell, Dalian Medical University, 9 Western Section, Lvshun South Street, Lvshunkou District, Dalian, 116044, Liaoning, China.
- State Key Laboratory of Oncology in South China, Cancer Center, Sun Yat-Sen University, Guangzhou, 510060, China.
| |
Collapse
|
2
|
Kim DH, Song NY, Yim H. Targeting dysregulated lipid metabolism in the tumor microenvironment. Arch Pharm Res 2023; 46:855-881. [PMID: 38060103 PMCID: PMC10725365 DOI: 10.1007/s12272-023-01473-y] [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: 09/27/2023] [Accepted: 11/25/2023] [Indexed: 12/08/2023]
Abstract
The reprogramming of lipid metabolism and its association with oncogenic signaling pathways within the tumor microenvironment (TME) have emerged as significant hallmarks of cancer. Lipid metabolism is defined as a complex set of molecular processes including lipid uptake, synthesis, transport, and degradation. The dysregulation of lipid metabolism is affected by enzymes and signaling molecules directly or indirectly involved in the lipid metabolic process. Regulation of lipid metabolizing enzymes has been shown to modulate cancer development and to avoid resistance to anticancer drugs in tumors and the TME. Because of this, understanding the metabolic reprogramming associated with oncogenic progression is important to develop strategies for cancer treatment. Recent advances provide insight into fundamental mechanisms and the connections between altered lipid metabolism and tumorigenesis. In this review, we explore alterations to lipid metabolism and the pivotal factors driving lipid metabolic reprogramming, which exacerbate cancer progression. We also shed light on the latest insights and current therapeutic approaches based on small molecular inhibitors and phytochemicals targeting lipid metabolism for cancer treatment. Further investigations are worthwhile to fully understand the underlying mechanisms and the correlation between altered lipid metabolism and carcinogenesis.
Collapse
Affiliation(s)
- Do-Hee Kim
- Department of Chemistry, College of Convergence and Integrated Science, Kyonggi University, Suwon, 16227, Korea
| | - Na-Young Song
- Department of Applied Life Science, The Graduate School, BK21 Four Project, Yonsei University, Seoul, 03722, Korea
- Department of Oral Biology, Yonsei University College of Dentistry, Seoul, 03722, Korea
| | - Hyungshin Yim
- Department of Pharmacy, College of Pharmacy, Institute of Pharmaceutical Science and Technology, Hanyang University, Ansan, 15588, Korea.
| |
Collapse
|
3
|
Pu Y, Ticiani E, Waye AA, Dong K, Zhang H, Veiga-Lopez A. Sex-specific extracellular matrix remodeling during early adipogenic differentiation by gestational bisphenol A exposure. CHEMOSPHERE 2022; 302:134806. [PMID: 35504463 PMCID: PMC9575584 DOI: 10.1016/j.chemosphere.2022.134806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 04/25/2022] [Accepted: 04/28/2022] [Indexed: 06/14/2023]
Abstract
Bisphenol A (BPA) is an endocrine disrupting chemical known to promote adipose tissue mass in vivo and adipogenesis in vitro. Whether BPA can affect and reprogram early adipogenic differentiation signals that trigger adipogenic differentiation, remains unknown. We hypothesized that gestational BPA exposure results in a preadipocyte phenotype that leads to accelerated adipogenic differentiation, and that this phenotype is sex specific. Primary ovine fetal preadipocytes were derived from control (C) and BPA-exposed during pregnancy and differentiated in vitro. Gestational BPA enhanced lipid accumulation at early stages of differentiation (48 h) and this was evident in females but not male-derived fetal preadipocytes. After an RNA sequencing approach, samples were compared as follows: 2 groups (C vs. BPA); 2 sexes (female (F) vs. male (M)); and 2 time points (0 h vs. 48 h). Before differentiation, 15 genes were differentially expressed between the C and the BPA-exposed preadipocytes within sex. In BPA-F, extracellular matrix remodeling genes cathepsin K and collagen 5α3 were upregulated compared to C-F. At 48 h, BPA-F had 154 genes differentially expressed vs. C-F and BPA-M had 487 genes differentially expressed vs. C-M. Triglyceride and glycerophospholipid metabolism were the most upregulated pathways in BPA-F. Downregulated pathways were associated with extracellular matrix organization in BPA-exposed preadipocytes. These findings are among the first to demonstrate that gestational BPA can modify the fate of adipocyte precursors by altering pathways associated to extracellular matrix components, an often-disregarded, but required aspect of adipogenic differentiation. This work highlights the need to investigate early adipogenic differentiation changes in other obesogenic chemicals.
Collapse
Affiliation(s)
- Yong Pu
- Department of Pathology, University of Illinois at Chicago, Chicago, 60612, USA
| | - Elvis Ticiani
- Department of Pathology, University of Illinois at Chicago, Chicago, 60612, USA
| | - Anita A Waye
- Department of Pathology, University of Illinois at Chicago, Chicago, 60612, USA
| | - Kunzhe Dong
- United States Department of Agriculture, Agricultural Research Service, Avian Disease and Oncology Laboratory, East Lansing, 48823, USA
| | - Huanmin Zhang
- United States Department of Agriculture, Agricultural Research Service, Avian Disease and Oncology Laboratory, East Lansing, 48823, USA
| | - Almudena Veiga-Lopez
- Department of Pathology, University of Illinois at Chicago, Chicago, 60612, USA.
| |
Collapse
|
4
|
Towards Sustainable Sources of Omega-3 Long-Chain Polyunsaturated Fatty Acids in Northern Australian Tropical Crossbred Beef Steers through Single Nucleotide Polymorphisms in Lipogenic Genes for Meat Eating Quality. SUSTAINABILITY 2022. [DOI: 10.3390/su14148409] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
This study aimed to identify single nucleotide polymorphisms (SNP) in lipogenic genes of northern Australian tropically adapted crossbred beef cattle and to evaluate associations with healthy lipid traits of the Longissimus dorsi (loin eye) muscle. The hypothesis tested was that there are significant associations between SNP loci encoding for the fatty acid binding protein 4 (FABP4), stearoyl-CoA desaturase (SCD) and fatty acid synthase (FASN) genes and human health beneficial omega-3 long-chain polyunsaturated fatty acids (ω3 LC-PUFA) within the loin eye muscle of northern Australian crossbred beef cattle. Brahman, Charbray, and Droughtmaster crossbred steers were fed on Rhodes grass hay augmented with desmanthus, lucerne, or both, for 140 days and the loin eye muscle sampled for intramuscular fat (IMF), fat melting point (FMP), and fatty acid composition. Polymorphisms in FABP4, SCD, and FASN genes with significant effects on lipid traits were identified with next-generation sequencing. The GG genotype at the FABP4 g.44677239C>G locus was associated with higher proportion of linoleic acid than the CC and CG genotypes (p < 0.05). Multiple comparisons of genotypes at the SCD g.21266629G>T locus indicated that the TT genotype had significantly higher eicosapentaenoic, docosapentaenoic, and docosahexaenoic acids than GG genotype (p < 0.05). Significant correlations (p < 0.05) between FASN SNP and IMF, saturated and monounsaturated fatty acids were observed. These results provide insights into the contribution of lipogenic genes to intramuscular fat deposition and SNP marker-assisted selection for improvement of meat-eating quality, with emphasis on alternate and sustainable sources of ω3 LC-PUFA, in northern Australian tropical crossbred beef cattle, hence an acceptance of the tested hypothesis.
Collapse
|
5
|
Widjaja-Adhi MAK, Chao K, Golczak M. Mouse models in studies on the etiology of evaporative dry eye disease. Exp Eye Res 2022; 219:109072. [DOI: 10.1016/j.exer.2022.109072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 03/28/2022] [Accepted: 04/05/2022] [Indexed: 11/26/2022]
|
6
|
Lin S, Peng Y, Xu Y, Zhang W, Wu J, Zhang W, Shao L, Gao Y. Establishment of a Risk Score Model for Early Prediction of Severe H1N1 Influenza. Front Cell Infect Microbiol 2022; 11:776840. [PMID: 35059324 PMCID: PMC8764189 DOI: 10.3389/fcimb.2021.776840] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Accepted: 12/03/2021] [Indexed: 11/13/2022] Open
Abstract
H1N1 is the most common subtype of influenza virus circulating worldwide and can cause severe disease in some populations. Early prediction and intervention for patients who develop severe influenza will greatly reduce their mortality. In this study, we conducted a comprehensive analysis of 180 PBMC samples from three published datasets from the GEO DataSets. Differentially expressed gene (DEG) analysis and weighted correlation network analysis (WGCNA) were performed to provide candidate DEGs for model building. Functional enrichment and CIBERSORT analyses were also performed to evaluate the differences in composition and function of PBMCs between patients with severe and mild disease. Finally, a risk score model was built using lasso regression analysis, with six genes (CX3CR1, KLRD1, MMP8, PRTN3, RETN and SCD) involved. The model performed moderately in the early identification of patients that develop severe H1N1 disease.
Collapse
Affiliation(s)
- Siran Lin
- Department of Infectious Diseases, Shanghai Key Laboratory of Infectious Diseases and Biosafety Emergency Response, National Medical Center for Infectious Diseases, Huashan Hospital, Fudan University, Shanghai, China
| | - YuBing Peng
- Department of Urology, RenJi Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Yuzhen Xu
- Department of Infectious Diseases, Shanghai Key Laboratory of Infectious Diseases and Biosafety Emergency Response, National Medical Center for Infectious Diseases, Huashan Hospital, Fudan University, Shanghai, China
| | - Wei Zhang
- Department of Infectious Diseases, Shanghai Key Laboratory of Infectious Diseases and Biosafety Emergency Response, National Medical Center for Infectious Diseases, Huashan Hospital, Fudan University, Shanghai, China
| | - Jing Wu
- Department of Infectious Diseases, Shanghai Key Laboratory of Infectious Diseases and Biosafety Emergency Response, National Medical Center for Infectious Diseases, Huashan Hospital, Fudan University, Shanghai, China
| | - Wenhong Zhang
- Department of Infectious Diseases, Shanghai Key Laboratory of Infectious Diseases and Biosafety Emergency Response, National Medical Center for Infectious Diseases, Huashan Hospital, Fudan University, Shanghai, China.,National Clinical Research Center for Aging and Medicine, Huashan Hospital, Fudan University, Shanghai, China.,State Key Laboratory of Genetic Engineering, School of Life Science, Fudan University, Shanghai, China.,Key Laboratory of Medical Molecular Virology (Key Laboratories of the Ministry of Education (MOE)/Key Laboratories of the Ministry of Health (MOH)) and Institutes of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai, China
| | - Lingyun Shao
- Department of Infectious Diseases, Shanghai Key Laboratory of Infectious Diseases and Biosafety Emergency Response, National Medical Center for Infectious Diseases, Huashan Hospital, Fudan University, Shanghai, China
| | - Yan Gao
- Department of Infectious Diseases, Shanghai Key Laboratory of Infectious Diseases and Biosafety Emergency Response, National Medical Center for Infectious Diseases, Huashan Hospital, Fudan University, Shanghai, China
| |
Collapse
|
7
|
Wilczyński JR. Cancer Stem Cells: An Ever-Hiding Foe. EXPERIENTIA SUPPLEMENTUM (2012) 2022; 113:219-251. [PMID: 35165866 DOI: 10.1007/978-3-030-91311-3_8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Cancer stem cells are a population of cells enable to reproduce the original phenotype of the tumor and capable to self-renewal, which is crucial for tumor proliferation, differentiation, recurrence, and metastasis, as well as chemoresistance. Therefore, the cancer stem cells (CSCs) have become one of the main targets for anticancer therapy and many ongoing clinical trials test anti-CSCs efficacy of plenty of drugs. This chapter describes CSCs starting from general description of this cell population, through CSCs markers, signaling pathways, genetic and epigenetic regulation, role of epithelial-mesenchymal transition (EMT) transition and autophagy, cooperation with microenvironment (CSCs niche), and finally role of CSCs in escaping host immunosurveillance against cancer.
Collapse
Affiliation(s)
- Jacek R Wilczyński
- Department of Gynecologic Surgery and Gynecologic Oncology, Medical University of Lodz, Lodz, Poland.
| |
Collapse
|
8
|
Torres R, Ghedini C, Paschoaloto J, da Silva D, Coelho L, Almeida Junior G, Ezequiel J, Machado Neto O, Almeida M. Effects of tannins supplementation to sheep diets on their performance, carcass parameters and meat fatty acid profile: A meta-analysis study. Small Rumin Res 2022. [DOI: 10.1016/j.smallrumres.2021.106585] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
|
9
|
Pewan SB, Otto JR, Huerlimann R, Budd AM, Mwangi FW, Edmunds RC, Holman BWB, Henry MLE, Kinobe RT, Adegboye OA, Malau-Aduli AEO. Genetics of Omega-3 Long-Chain Polyunsaturated Fatty Acid Metabolism and Meat Eating Quality in Tattykeel Australian White Lambs. Genes (Basel) 2020; 11:E587. [PMID: 32466330 PMCID: PMC7288343 DOI: 10.3390/genes11050587] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Revised: 05/14/2020] [Accepted: 05/21/2020] [Indexed: 12/30/2022] Open
Abstract
Meat eating quality with a healthy composition hinges on intramuscular fat (IMF), fat melting point (FMP), tenderness, juiciness, flavour and omega-3 long-chain polyunsaturated fatty acids (n-3 LC-PUFA) content. These health-beneficial n-3 LC-PUFA play significant roles in optimal cardiovascular, retinal, maternal and childhood brain functions, and include alpha linolenic (ALA), eicosapentaenoic (EPA), docosahexaenoic (DHA) and docosapentaenoic (DPA) acids. The primary objective of this review was to access, retrieve, synthesise and critically appraise the published literature on the synthesis, metabolism and genetics of n-3 LC-PUFA and meat eating quality. Studies on IMF content, FMP and fatty acid composition were reviewed to identify knowledge gaps that can inform future research with Tattykeel Australian White (TAW) lambs. The TAW is a new sheep breed exclusive to MARGRA brand of lamb with an outstanding low fat melting point (28-39°C), high n-3 LC-PUFA EPA+DHA content (33-69mg/100g), marbling (3.4-8.2%), tenderness (20.0-38.5N) and overall consumer liking (7.9-8.5). However, correlations between n-3 LC-PUFA profile, stearoyl-CoA desaturase (SCD), fatty acid binding protein 4 (FABP4), fatty acid synthase (FASN), other lipogenic genes and meat quality traits present major knowledge gaps. The review also identified research opportunities in nutrition-genetics interactions aimed at a greater understanding of the genetics of n-3 LC-PUFA, feedlot finishing performance, carcass traits and eating quality in the TAW sheep. It was concluded that studies on IMF, FMP and n-3 LC-PUFA profiles in parental and progeny generations of TAW sheep will be foundational for the genetic selection of healthy lamb eating qualities and provide useful insights into their correlations with SCD, FASN and FABP4 genes.
Collapse
Affiliation(s)
- Shedrach Benjamin Pewan
- Animal Genetics and Nutrition, Veterinary Sciences Discipline, College of Public Health, Medical and Veterinary Sciences, Division of Tropical Health and Medicine, James Cook University, Townsville, Queensland 4811, Australia; (S.B.P.); (J.R.O.); (F.W.M.); (R.C.E.); (R.T.K.)
- National Veterinary Research Institute, Private Mail Bag 01, Vom, Plateau State, Nigeria
| | - John Roger Otto
- Animal Genetics and Nutrition, Veterinary Sciences Discipline, College of Public Health, Medical and Veterinary Sciences, Division of Tropical Health and Medicine, James Cook University, Townsville, Queensland 4811, Australia; (S.B.P.); (J.R.O.); (F.W.M.); (R.C.E.); (R.T.K.)
| | - Roger Huerlimann
- Centre for Sustainable Tropical Fisheries and Aquaculture and Centre for Tropical Bioinformatics and Molecular Biology, College of Science and Engineering, James Cook University, Townsville, Queensland 4811, Australia; (R.H.); (A.M.B.)
| | - Alyssa Maree Budd
- Centre for Sustainable Tropical Fisheries and Aquaculture and Centre for Tropical Bioinformatics and Molecular Biology, College of Science and Engineering, James Cook University, Townsville, Queensland 4811, Australia; (R.H.); (A.M.B.)
| | - Felista Waithira Mwangi
- Animal Genetics and Nutrition, Veterinary Sciences Discipline, College of Public Health, Medical and Veterinary Sciences, Division of Tropical Health and Medicine, James Cook University, Townsville, Queensland 4811, Australia; (S.B.P.); (J.R.O.); (F.W.M.); (R.C.E.); (R.T.K.)
| | - Richard Crawford Edmunds
- Animal Genetics and Nutrition, Veterinary Sciences Discipline, College of Public Health, Medical and Veterinary Sciences, Division of Tropical Health and Medicine, James Cook University, Townsville, Queensland 4811, Australia; (S.B.P.); (J.R.O.); (F.W.M.); (R.C.E.); (R.T.K.)
| | | | - Michelle Lauren Elizabeth Henry
- Gundagai Meat Processors, 2916 Gocup Road, South Gundagai, New South Wales 2722, Australia;
- Faculty of Veterinary and Agricultural Sciences, University of Melbourne, Melbourne, VIC 3010, Australia
| | - Robert Tumwesigye Kinobe
- Animal Genetics and Nutrition, Veterinary Sciences Discipline, College of Public Health, Medical and Veterinary Sciences, Division of Tropical Health and Medicine, James Cook University, Townsville, Queensland 4811, Australia; (S.B.P.); (J.R.O.); (F.W.M.); (R.C.E.); (R.T.K.)
| | - Oyelola Abdulwasiu Adegboye
- Australian Institute of Tropical Health and Medicine, College of Public Health, Medical and Veterinary Sciences, Division of Tropical Health and Medicine, James Cook University, Townsville, Queensland 4811, Australia;
| | - Aduli Enoch Othniel Malau-Aduli
- Animal Genetics and Nutrition, Veterinary Sciences Discipline, College of Public Health, Medical and Veterinary Sciences, Division of Tropical Health and Medicine, James Cook University, Townsville, Queensland 4811, Australia; (S.B.P.); (J.R.O.); (F.W.M.); (R.C.E.); (R.T.K.)
| |
Collapse
|
10
|
Rajakumar S, Abhishek A, Selvam GS, Nachiappan V. Effect of cadmium on essential metals and their impact on lipid metabolism in Saccharomyces cerevisiae. Cell Stress Chaperones 2020; 25:19-33. [PMID: 31823289 PMCID: PMC6985397 DOI: 10.1007/s12192-019-01058-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Revised: 11/14/2019] [Accepted: 11/28/2019] [Indexed: 01/09/2023] Open
Abstract
Cadmium (Cd) is a toxic heavy metal that induces irregularity in numerous lipid metabolic pathways. Saccharomyces cerevisiae, a model to study lipid metabolism, has been used to establish the molecular basis of cellular responses to Cd toxicity in relation to essential minerals and lipid homeostasis. Multiple pathways sense these environmental stresses and trigger the mineral imbalances specifically calcium (Ca) and zinc (Zn). This review is aimed to elucidate the role of Cd toxicity in yeast, in three different perspectives: (1) elucidate stress response and its adaptation to Cd, (2) understand the physiological role of a macromolecule such as lipids, and (3) study the stress rescue mechanism. Here, we explored the impact of Cd interference on the essential minerals such as Zn and Ca and their influence on endoplasmic reticulum stress and lipid metabolism. Cd toxicity contributes to lipid droplet synthesis by activating OLE1 that is essential to alleviate lipotoxicity. In this review, we expanded our current findings about the effect of Cd on lipid metabolism of budding yeast.
Collapse
Affiliation(s)
- Selvaraj Rajakumar
- Eukaryotic Biology Lab, Department of Biochemistry, School of Biological Sciences, Madurai Kamaraj University, Madurai, Tamil Nadu, 625021, India.
- Biomembrane Lab, Department of Biochemistry, Centre for Excellence in Life Sciences, Bharathidasan University, Tiruchirappalli, Tamil Nadu, 620024, India.
- Department of Pediatrics, Heritage Medical Research Centre, University of Alberta, Edmonton, Alberta, T6G 2S2, Canada.
| | - Albert Abhishek
- Eukaryotic Biology Lab, Department of Biochemistry, School of Biological Sciences, Madurai Kamaraj University, Madurai, Tamil Nadu, 625021, India
| | - Govindan Sadasivam Selvam
- Eukaryotic Biology Lab, Department of Biochemistry, School of Biological Sciences, Madurai Kamaraj University, Madurai, Tamil Nadu, 625021, India
| | - Vasanthi Nachiappan
- Biomembrane Lab, Department of Biochemistry, Centre for Excellence in Life Sciences, Bharathidasan University, Tiruchirappalli, Tamil Nadu, 620024, India
| |
Collapse
|
11
|
Begicevic RR, Arfuso F, Falasca M. Bioactive lipids in cancer stem cells. World J Stem Cells 2019; 11:693-704. [PMID: 31616544 PMCID: PMC6789187 DOI: 10.4252/wjsc.v11.i9.693] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Revised: 07/08/2019] [Accepted: 08/21/2019] [Indexed: 02/06/2023] Open
Abstract
Tumours are known to be a heterogeneous group of cells, which is why they are difficult to eradicate. One possible cause for this is the existence of slow-cycling cancer stem cells (CSCs) endowed with stem cell-like properties of self-renewal, which are responsible for resistance to chemotherapy and radiotherapy. In recent years, the role of lipid metabolism has garnered increasing attention in cancer. Specifically, the key roles of enzymes such as stearoyl-CoA desaturase-1 and 3-hydroxy-3-methyl-glutaryl-coenzyme A reductase in CSCs, have gained particular interest. However, despite accumulating evidence on the role of proteins in controlling lipid metabolism, very little is known about the specific role played by lipid products in CSCs. This review highlights recent findings on the role of lipid metabolism in CSCs, focusing on the specific mechanism by which bioactive lipids regulate the fate of CSCs and their involvement in signal transduction pathways.
Collapse
Affiliation(s)
- Romana-Rea Begicevic
- Metabolic Signalling Group, School of Pharmacy and Biomedical Sciences, Curtin Health Innovation Research Institute, Curtin University, Perth, WA 6102, Australia
| | - Frank Arfuso
- Stem Cell and Cancer Biology Laboratory, School of Pharmacy and Biomedical Sciences, Curtin Health Innovation Research Institute, Curtin University, Perth, WA 6102, Australia
| | - Marco Falasca
- Metabolic Signalling Group, School of Pharmacy and Biomedical Sciences, Curtin Health Innovation Research Institute, Curtin University, Perth, WA 6102, Australia
| |
Collapse
|
12
|
Wang Z, Zhu B, Niu H, Zhang W, Xu L, Xu L, Chen Y, Zhang L, Gao X, Gao H, Zhang S, Xu L, Li J. Genome wide association study identifies SNPs associated with fatty acid composition in Chinese Wagyu cattle. J Anim Sci Biotechnol 2019; 10:27. [PMID: 30867906 PMCID: PMC6399853 DOI: 10.1186/s40104-019-0322-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Accepted: 01/14/2019] [Indexed: 12/29/2022] Open
Abstract
Background Fatty acids are important traits that affect meat quality and nutritive values in beef cattle. Detection of genetic variants for fatty acid composition can help to elucidate the genetic mechanism underpinning these traits and promote the improvement of fatty acid profiles. In this study, we performed a genome-wide association study (GWAS) on fatty acid composition using high-density single nucleotide polymorphism (SNP) arrays in Chinese Wagyu cattle. Results In total, we detected 15 and 8 significant genome-wide SNPs for individual fatty acids and fatty acid groups in Chinese Wagyu cattle, respectively. Also, we identified nine candidate genes based on 100 kb regions around associated SNPs. Four SNPs significantly associated with C14:1 cis-9 were embedded with stearoyl-CoA desaturase (SCD), while three SNPs in total were identified for C22:6 n-3 within Phospholipid scramblase family member 5 (PLSCR5), Cytoplasmic linker associated protein 1 (CLASP1), and Chymosin (CYM). Notably, we found the top candidate SNP within SCD can explain ~ 7.37% of phenotypic variance for C14:1 cis-9. Moreover, we detected several blocks with high LD in the 100 kb region around SCD. In addition, we found three significant SNPs within a 100 kb region showing pleiotropic effects related to multiple FA groups (PUFA, n-6, and PUFA/SFA), which contains BAI1 associated protein 2 like 2 (BAIAP2L2), MAF bZIP transcription factor F (MAFF), and transmembrane protein 184B (TMEM184B). Conclusions Our study identified several significant SNPs and candidate genes for individual fatty acids and fatty acid groups in Chinese Wagyu cattle, and these findings will further assist the design of breeding programs for meat quality in cattle.
Collapse
Affiliation(s)
- Zezhao Wang
- 1Innovation Team of Cattle Genetic Breeding, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100193 China.,2National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing, 100193 China
| | - Bo Zhu
- 1Innovation Team of Cattle Genetic Breeding, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100193 China
| | - Hong Niu
- 1Innovation Team of Cattle Genetic Breeding, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100193 China
| | - Wengang Zhang
- 1Innovation Team of Cattle Genetic Breeding, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100193 China
| | - Ling Xu
- 1Innovation Team of Cattle Genetic Breeding, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100193 China
| | - Lei Xu
- 1Innovation Team of Cattle Genetic Breeding, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100193 China.,3Institute of Animal Husbandry and Veterinary Research, Anhui Academy of Agricultural Sciences, Hefei, 230031 China
| | - Yan Chen
- 1Innovation Team of Cattle Genetic Breeding, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100193 China
| | - Lupei Zhang
- 1Innovation Team of Cattle Genetic Breeding, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100193 China
| | - Xue Gao
- 1Innovation Team of Cattle Genetic Breeding, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100193 China
| | - Huijiang Gao
- 1Innovation Team of Cattle Genetic Breeding, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100193 China
| | - Shengli Zhang
- 2National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing, 100193 China
| | - Lingyang Xu
- 1Innovation Team of Cattle Genetic Breeding, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100193 China
| | - Junya Li
- 1Innovation Team of Cattle Genetic Breeding, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100193 China
| |
Collapse
|
13
|
Zhao S, Tao L, Tian Y, Tai D, Liu P, Liu D. Isolation and characterization of ovine umbilical cord-derived mesenchymal stem cells. Cytotechnology 2019; 71:277-286. [PMID: 30603926 DOI: 10.1007/s10616-018-0284-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Accepted: 08/08/2016] [Indexed: 12/14/2022] Open
Abstract
Mesenchymal stem cells (MSCs) are able to self-renew and have multi-lineage differentiation potential. However, studies on ovine umbilical cord-derived MSCs (UC-MSCs) are limited. Our study aimed to isolate and characterize ovine UC-MSCs. We successfully isolated ovine UC-MSCs and defined their surface marker profile using immunofluorescence analysis. Ovine UC-MSCs were found to be positive for cell surface markers CD13, CD29, CD44, CD90, and CD106, and negative for cell surface marker CD45. Assessment of the proliferation potential of ovine UC-MSCs showed that from day 3 of cultivation a plateau phase was reached. And compare to passage 10, 15, 20 cells, passage 5 cells proliferating the fastest. Differentiation of ovine UC-MSCs into adipocytes, osteocytes, and chondrocytes was also demonstrated by staining for tissue-specific markers and using quantitative real-time polymerase chain reaction for specific marker gene expression. This study demonstrates the existence of a MSC population within the ovine umbilical cord, which maintained a normal karyotype up to passage 20.
Collapse
Affiliation(s)
- Sirguleng Zhao
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, Inner Mongolia, P.R. China
| | - Li Tao
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, Inner Mongolia, P.R. China
| | - Yunyun Tian
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, Inner Mongolia, P.R. China
| | - Dapeng Tai
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, Inner Mongolia, P.R. China
| | - Pengxia Liu
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, Inner Mongolia, P.R. China.
| | - Dongjun Liu
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, Inner Mongolia, P.R. China.
| |
Collapse
|
14
|
Zhou Z, Lu Y, Wang Y, Du L, Zhang Y, Tao J. Let-7c regulates proliferation and osteodifferentiation of human adipose-derived mesenchymal stem cells under oxidative stress by targeting SCD-1. Am J Physiol Cell Physiol 2018; 316:C57-C69. [PMID: 30379578 DOI: 10.1152/ajpcell.00211.2018] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Osteoporosis is a progressive bone disease characterized by decreased bone mass and density, which usually parallels a reduced antioxidative capacity and increased reactive oxygen species formation. Adipose-derived mesenchymal stem cells (ADMSCs), a population of self-renewing multipotent cells, are a well-recognized source of potential bone precursors with significant clinical potential for tissue regeneration. We previously showed that overexpressing stearoyl-CoA desaturase 1 (SCD-1) promotes osteogenic differentiation of mesenchymal stem cells. Micro-RNAs (miRNAs) are noncoding RNAs recently recognized to play key roles in many developmental processes, and miRNA let-7c is downregulated during osteoinduction. We found that let-7c was upregulated in the serum of patients with postmenopausal osteoporosis compared with healthy controls. Levels of let-7c during osteogenic differentiation of ADMSCs were examined under oxidative stress in vitro and found to be upregulated. Overexpression of let-7c inhibited osteogenic differentiation, whereas inhibition of let-7c function promoted this process, evidenced by increased expression of osteoblast-specific genes, alkaline phosphatase activity, and matrix mineralization. The luciferase reporter assay was used to validate SCD-1 as a target of let-7c. Further experiments showed that silencing of SCD-1 significantly attenuated the effect of let-7c inhibitor on osteoblast markers, providing strong evidence that let-7c modulates osteogenic differentiation by targeting SCD-1. Inhibition of let-7c promoted the translocation of β-catenin into nuclei, thus activating Wnt/β-catenin signaling. Collectively, these data suggest that let-7c is induced under oxidative stress conditions and in osteoporosis, reducing SCD-1 protein levels, switching off Wnt/β-catenin signaling, and inhibiting osteogenic differentiation. Thus, let-7c may be a potential therapeutic target in the treatment of osteoporosis and especially postmenopausal osteoporosis.
Collapse
Affiliation(s)
- Zihui Zhou
- Department of Orthopedics, Shanghai General Hospital, Shanghai Jiao Tong University , Shanghai , China
| | - Yuanshan Lu
- Department of Blood Transfusion, Shanghai General Hospital, Shanghai Jiao Tong University , Shanghai , China
| | - Yao Wang
- Department of Orthopedics, Shanghai General Hospital, Shanghai Jiao Tong University , Shanghai , China
| | - Lin Du
- Department of Orthopedics, Shanghai General Hospital, Shanghai Jiao Tong University , Shanghai , China
| | - Yunpeng Zhang
- Department of Orthopedics, Shanghai General Hospital, Shanghai Jiao Tong University , Shanghai , China
| | - Jie Tao
- Department of Orthopedics, Shanghai General Hospital, Shanghai Jiao Tong University , Shanghai , China
| |
Collapse
|
15
|
Goel P, Alam O, Naim MJ, Nawaz F, Iqbal M, Alam MI. Recent advancement of piperidine moiety in treatment of cancer- A review. Eur J Med Chem 2018; 157:480-502. [DOI: 10.1016/j.ejmech.2018.08.017] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Revised: 03/26/2018] [Accepted: 08/04/2018] [Indexed: 12/23/2022]
|
16
|
Kamal S, Saleem A, Rehman S, Bibi I, Iqbal HMN. Protein engineering: Regulatory perspectives of stearoyl CoA desaturase. Int J Biol Macromol 2018; 114:692-699. [PMID: 29605251 DOI: 10.1016/j.ijbiomac.2018.03.171] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Revised: 03/26/2018] [Accepted: 03/28/2018] [Indexed: 02/08/2023]
Abstract
Stearoyl Co A desaturase (SCD) is a rate-limiting lipogenic enzyme that plays an integral role in catalyzing the synthesis of monounsaturated fatty acids, chiefly oleate and palmitoleate. Both contribute a major part of the biological membrane. Numerous SCD isoforms exist in mouse and humans, i.e., SCD-1 to SCD-4 and SCD-1 and SCD-5, respectively. From the biological viewpoint, hyperexpression of SCD1 cause many metabolic disorders including obesity, insulin resistance, hypertension, and hypertriglyceridemia, etc. Herein, an effort has been made to highlight the value of protein engineering in controlling the SCD-1 expression with the involvement of different inhibitors as therapeutic agents. The first part of the review describes Stearoyl CoA desaturase index and different SCD isoforms. Various regulatory aspects of SCD are reviewed in four subsections, i.e., (1) hormonal regulation, (2) regulation by dietary carbohydrates, (3) regulation by green tea, and (4) regulation via polyunsaturated fatty acids (PUFAs). Moreover, the regulation of Stearoyl CoA desaturase expression in the metabolism of fats and carbohydrates is discussed. The third part mainly focuses on natural and synthetic inhibitors. Towards the end, information is also given on potential future considerations of SCD-1 inhibitors as metabolic syndrome therapeutics, yet additional work is required.
Collapse
Affiliation(s)
- Shagufta Kamal
- Department of Biochemistry, Government College University, Faisalabad 38000, Pakistan.
| | - Ayesha Saleem
- Department of Biochemistry, Government College University, Faisalabad 38000, Pakistan
| | - Saima Rehman
- Department of Chemistry, Government College University, Faisalabad 38000, Pakistan
| | - Ismat Bibi
- Department of Chemistry, Islamia University, Bahawalpur 63100, Pakistan
| | - Hafiz M N Iqbal
- Tecnologico de Monterrey, School of Engineering and Sciences, Campus Monterrey, Ave. Eugenio Garza Sada 2501, Monterrey, N.L. CP 64849, Mexico.
| |
Collapse
|
17
|
Gotoh T, Nishimura T, Kuchida K, Mannen H. The Japanese Wagyu beef industry: current situation and future prospects - A review. ASIAN-AUSTRALASIAN JOURNAL OF ANIMAL SCIENCES 2018; 31:933-950. [PMID: 29973029 PMCID: PMC6039323 DOI: 10.5713/ajas.18.0333] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Accepted: 06/05/2018] [Indexed: 11/29/2022]
Abstract
In Japan, Wagyu cattle include four Japanese breeds; Black, Brown, Shorthorn, and Polled. Today, the renowned brand name Wagyu includes not only cattle produced in Japan, but also cattle produced in countries such as Australia and the United States. In recent years, the intramuscular fat percentage in beef (longissimus muscle) from Japanese Black cattle has increased to be greater than 30%. The Japanese Black breed is genetically predisposed to producing carcass lipids containing higher concentrations of monounsaturated fatty acids than other breeds. However, there are numerous problems with the management of this breed including high production costs, disposal of untreated excrement, the requirement for imported feed, and food security risks resulting from various viral diseases introduced by imported feed. The feeding system needs to shift to one that is more efficient, and improves management for farmers, food security for consumers, and the health environment for residents of Japan. Currently, we are developing a metabolic programming and an information and communications technology (ICT, or Interne of Things) management system for Wagyu beef production as future systems. If successful, we will produce safe, high-quality Wagyu beef using domestic pasture resources while solving the problems of how to utilize increasing areas of abandoned agricultural land and to make use of the plant-based feed resources in Japan’s mountainous areas.
Collapse
Affiliation(s)
- Takafumi Gotoh
- Department of Agricultural Sciences and Natural Resources, Faculty of Agriculture, Kagoshima University, Kagoshima, 890-0065, Japan.,Kuju Agricultural Research Center, Faculty of Agriculture, Kyushu University, Takeda 878-0201, Japan
| | - Takanori Nishimura
- Muscle Biology and Meat Science laboratory, Research Faculty of Agriculture, Hokkaido University, Sapporo 060-8589, Japan
| | - Keigo Kuchida
- Obihiro University of Agriculture and Veterinary Medicine, Obihiro 080-8555, Japan
| | - Hideyuki Mannen
- Laboratory of Animal Breeding and Genetics, Graduate School of Agricultural Science, Kobe University, Kobe 657-8501, Japan
| |
Collapse
|
18
|
Yi M, Li J, Chen S, Cai J, Ban Y, Peng Q, Zhou Y, Zeng Z, Peng S, Li X, Xiong W, Li G, Xiang B. Emerging role of lipid metabolism alterations in Cancer stem cells. J Exp Clin Cancer Res 2018; 37:118. [PMID: 29907133 PMCID: PMC6003041 DOI: 10.1186/s13046-018-0784-5] [Citation(s) in RCA: 149] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Accepted: 05/28/2018] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Cancer stem cells (CSCs) or tumor-initiating cells (TICs) represent a small population of cancer cells with self-renewal and tumor-initiating properties. Unlike the bulk of tumor cells, CSCs or TICs are refractory to traditional therapy and are responsible for relapse or disease recurrence in cancer patients. Stem cells have distinct metabolic properties compared to differentiated cells, and metabolic rewiring contributes to self-renewal and stemness maintenance in CSCs. MAIN BODY Recent advances in metabolomic detection, particularly in hyperspectral-stimulated raman scattering microscopy, have expanded our knowledge of the contribution of lipid metabolism to the generation and maintenance of CSCs. Alterations in lipid uptake, de novo lipogenesis, lipid droplets, lipid desaturation, and fatty acid oxidation are all clearly implicated in CSCs regulation. Alterations on lipid metabolism not only satisfies the energy demands and biomass production of CSCs, but also contributes to the activation of several important oncogenic signaling pathways, including Wnt/β-catenin and Hippo/YAP signaling. In this review, we summarize the current progress in this attractive field and describe some recent therapeutic agents specifically targeting CSCs based on their modulation of lipid metabolism. CONCLUSION Increased reliance on lipid metabolism makes it a promising therapeutic strategy to eliminate CSCs. Targeting key players of fatty acids metabolism shows promising to anti-CSCs and tumor prevention effects.
Collapse
Affiliation(s)
- Mei Yi
- Hunan Provincial Cancer Hospital and Cancer Hospital Affiliated to Xiangya Medical School, The Central South University, Changsha, 410013 Hunan China
- Department of Dermatology, Xiangya hospital of Central South University, Changsha, 410008 China
| | - Junjun Li
- Hunan Provincial Cancer Hospital and Cancer Hospital Affiliated to Xiangya Medical School, The Central South University, Changsha, 410013 Hunan China
- Cancer Research Institute, Xiangya School of Medicine, Central South University, Changsha, 410078 China
| | - Shengnan Chen
- Hunan Provincial Cancer Hospital and Cancer Hospital Affiliated to Xiangya Medical School, The Central South University, Changsha, 410013 Hunan China
- Cancer Research Institute, Xiangya School of Medicine, Central South University, Changsha, 410078 China
| | - Jing Cai
- Hunan Provincial Cancer Hospital and Cancer Hospital Affiliated to Xiangya Medical School, The Central South University, Changsha, 410013 Hunan China
- Cancer Research Institute, Xiangya School of Medicine, Central South University, Changsha, 410078 China
| | - Yuanyuan Ban
- Hunan Provincial Cancer Hospital and Cancer Hospital Affiliated to Xiangya Medical School, The Central South University, Changsha, 410013 Hunan China
- Cancer Research Institute, Xiangya School of Medicine, Central South University, Changsha, 410078 China
| | - Qian Peng
- Hunan Provincial Cancer Hospital and Cancer Hospital Affiliated to Xiangya Medical School, The Central South University, Changsha, 410013 Hunan China
- Cancer Research Institute, Xiangya School of Medicine, Central South University, Changsha, 410078 China
| | - Ying Zhou
- Hunan Provincial Cancer Hospital and Cancer Hospital Affiliated to Xiangya Medical School, The Central South University, Changsha, 410013 Hunan China
- Cancer Research Institute, Xiangya School of Medicine, Central South University, Changsha, 410078 China
| | - Zhaoyang Zeng
- Hunan Provincial Cancer Hospital and Cancer Hospital Affiliated to Xiangya Medical School, The Central South University, Changsha, 410013 Hunan China
- Cancer Research Institute, Xiangya School of Medicine, Central South University, Changsha, 410078 China
| | - Shuping Peng
- Hunan Provincial Cancer Hospital and Cancer Hospital Affiliated to Xiangya Medical School, The Central South University, Changsha, 410013 Hunan China
- Cancer Research Institute, Xiangya School of Medicine, Central South University, Changsha, 410078 China
| | - Xiaoling Li
- Hunan Provincial Cancer Hospital and Cancer Hospital Affiliated to Xiangya Medical School, The Central South University, Changsha, 410013 Hunan China
- Cancer Research Institute, Xiangya School of Medicine, Central South University, Changsha, 410078 China
| | - Wei Xiong
- Hunan Provincial Cancer Hospital and Cancer Hospital Affiliated to Xiangya Medical School, The Central South University, Changsha, 410013 Hunan China
- Cancer Research Institute, Xiangya School of Medicine, Central South University, Changsha, 410078 China
| | - Guiyuan Li
- Hunan Provincial Cancer Hospital and Cancer Hospital Affiliated to Xiangya Medical School, The Central South University, Changsha, 410013 Hunan China
- Cancer Research Institute, Xiangya School of Medicine, Central South University, Changsha, 410078 China
| | - Bo Xiang
- Hunan Provincial Cancer Hospital and Cancer Hospital Affiliated to Xiangya Medical School, The Central South University, Changsha, 410013 Hunan China
- Cancer Research Institute, Xiangya School of Medicine, Central South University, Changsha, 410078 China
| |
Collapse
|
19
|
Yoo HJ, Kim M, Kim M, Kang M, Jung KJ, Hwang SM, Jee SH, Lee JH. Analysis of metabolites and metabolic pathways in breast cancer in a Korean prospective cohort: the Korean Cancer Prevention Study-II. Metabolomics 2018; 14:85. [PMID: 30830383 DOI: 10.1007/s11306-018-1382-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Accepted: 06/05/2018] [Indexed: 01/06/2023]
Abstract
INTRODUCTION Since blood is in contact with all tissues in the body and is considered to dynamically reflect the body's pathophysiological status, serum metabolomics changes are important and have diagnostic value in early cancer detection. OBJECTIVES In this prospective study, we investigated the application of metabolomics to differentiate subjects with incident breast cancer (BC) from subjects who remained free of cancer during a mean follow-up period of 7 years with the aim of identifying valuable biomarkers for BC. METHODS Baseline serum samples from 84 female subjects with incident BC (BC group) and 88 cancer-free female subjects (control group) were used. Metabolic alterations associated with BC were investigated via metabolomics analysis of the baseline serum samples using ultra-performance liquid chromatography-linear-trap quadrupole-Orbitrap mass spectrometry. RESULTS A total of 57 metabolites were identified through the metabolic analysis. Among them, 20 metabolite levels were significantly higher and 22 metabolite levels were significantly lower in the BC group than in the control group at baseline. Ten metabolic pathways, including amino acid metabolism, arachidonic acid (AA) metabolism, fatty acid metabolism, linoleic acid metabolism, and retinol metabolism, showed significant differences between the BC group and the control group. Logistic regression revealed that the incidence of BC was affected by leucine, AA, prostaglandin (PG)J2, PGE2, and γ-linolenic acid (GLA). CONCLUSIONS This prospective study showed the clinical relevance of dysregulation of various metabolisms on the incidence of BC. Additionally, leucine, AA, PGJ2, PGE2, and GLA were identified as independent variables affecting the incidence of BC.
Collapse
Affiliation(s)
- Hye Jin Yoo
- Department of Food and Nutrition, Brain Korea 21 PLUS Project, College of Human Ecology, Yonsei University, Seoul, South Korea
| | - Minjoo Kim
- Research Center for Silver Science, Institute of Symbiotic Life-TECH, Yonsei University, Seoul, South Korea
| | - Minkyung Kim
- Research Center for Silver Science, Institute of Symbiotic Life-TECH, Yonsei University, Seoul, South Korea
| | - Minsik Kang
- Department of Food and Nutrition, Brain Korea 21 PLUS Project, College of Human Ecology, Yonsei University, Seoul, South Korea
- National Leading Research Laboratory of Clinical Nutrigenetics/Nutrigenomics, Department of Food and Nutrition, College of Human Ecology, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, South Korea
| | - Keum Ji Jung
- Institute for Health Promotion, Graduate School of Public Health, Yonsei University, Seoul, South Korea
| | - Se-Mi Hwang
- Institute for Health Promotion, Graduate School of Public Health, Yonsei University, Seoul, South Korea
| | - Sun Ha Jee
- Institute for Health Promotion, Graduate School of Public Health, Yonsei University, Seoul, South Korea
| | - Jong Ho Lee
- Department of Food and Nutrition, Brain Korea 21 PLUS Project, College of Human Ecology, Yonsei University, Seoul, South Korea.
- Research Center for Silver Science, Institute of Symbiotic Life-TECH, Yonsei University, Seoul, South Korea.
- National Leading Research Laboratory of Clinical Nutrigenetics/Nutrigenomics, Department of Food and Nutrition, College of Human Ecology, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, South Korea.
| |
Collapse
|
20
|
Kawaguchi F, Kigoshi H, Nakajima A, Matsumoto Y, Uemoto Y, Fukushima M, Yoshida E, Iwamoto E, Akiyama T, Kohama N, Kobayashi E, Honda T, Oyama K, Mannen H, Sasazaki S. Pool-based genome-wide association study identified novel candidate regions on BTA9 and 14 for oleic acid percentage in Japanese Black cattle. Anim Sci J 2018; 89:1060-1066. [DOI: 10.1111/asj.13035] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2017] [Accepted: 03/22/2018] [Indexed: 11/29/2022]
Affiliation(s)
- Fuki Kawaguchi
- Laboratory of Animal Breeding and Genetics; Graduate School of Agricultural Science; Kobe University; Kobe Japan
| | - Hiroto Kigoshi
- Laboratory of Animal Breeding and Genetics; Graduate School of Agricultural Science; Kobe University; Kobe Japan
| | - Ayaka Nakajima
- Laboratory of Animal Breeding and Genetics; Graduate School of Agricultural Science; Kobe University; Kobe Japan
| | - Yuta Matsumoto
- Laboratory of Animal Breeding and Genetics; Graduate School of Agricultural Science; Kobe University; Kobe Japan
| | - Yoshinobu Uemoto
- Laboratory of Animal Breeding and Genetics; Graduate School of Agricultural Science; Tohoku University; Sendai Japan
| | - Moriyuki Fukushima
- Northern Center of Agricultural Technology, General Technological Center of Hyogo Prefecture for Agriculture, Forestry and Fisheries; Asago Japan
| | - Emi Yoshida
- Hyogo Prefectural Technology Center for Agriculture, Forestry and Fisheries; Kasai Japan
| | - Eiji Iwamoto
- Hyogo Prefectural Technology Center for Agriculture, Forestry and Fisheries; Kasai Japan
| | - Takayuki Akiyama
- Northern Center of Agricultural Technology, General Technological Center of Hyogo Prefecture for Agriculture, Forestry and Fisheries; Asago Japan
| | - Namiko Kohama
- Northern Center of Agricultural Technology, General Technological Center of Hyogo Prefecture for Agriculture, Forestry and Fisheries; Asago Japan
| | - Eiji Kobayashi
- Division of Animal Breeding and Reproduction Research; Institute of Livestock and Grassland Science; National Agriculture and Food Research Organization; Tsukuba Japan
| | - Takeshi Honda
- Food Resources Education & Research Center; Kobe University; Kasai Japan
| | - Kenji Oyama
- Food Resources Education & Research Center; Kobe University; Kasai Japan
| | - Hideyuki Mannen
- Laboratory of Animal Breeding and Genetics; Graduate School of Agricultural Science; Kobe University; Kobe Japan
| | - Shinji Sasazaki
- Laboratory of Animal Breeding and Genetics; Graduate School of Agricultural Science; Kobe University; Kobe Japan
| |
Collapse
|
21
|
Aboujaoude C, Pereira ASC, Feitosa FLB, Antunes de Lemos MV, Chiaia HLJ, Piatto Berton M, Peripolli E, Silva RMDO, Ferrinho AM, Mueller LF, Olivieri BF, Galvão de Albuquerque L, Nunes de Oliveira H, Tonhati H, Espigolan R, Tonussi R, Gordo DM, Magalhaes AFB, Baldi F. Genetic parameters for fatty acids in intramuscular fat from feedlot-finished Nelore carcasses. ANIMAL PRODUCTION SCIENCE 2018. [DOI: 10.1071/an16107] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The aim of the present study was to estimate covariance components and genetic parameters for beef fatty acid (FA) composition of intramuscular fat in the longissimus thoracis muscle in Nelore bulls finished in feedlot. Twenty-two FAs were selected. The heritability estimates for individual FAs ranged from 0.01 to 0.35. The heritability estimates for myristic (0.25 ± 0.09), palmitic (0.18 ± 0.07), oleic (0.28 ± 0.09), linoleic (0.16 ± 0.06) and α-linolenic (0.35 ± 0.10) FAs were moderate. Stearic, elaidic, palmitoleic, vaccenic, conjugated linoleic acid, docosahexanoic, eicosatrienoic and arachidonic FAs had heritability estimates below 0.15. The genetic-correlation estimates between the individual saturated FAs (SFAs) were low and negative between myristic and stearic FAs (–0.22 ± 0.84), moderate between palmitic and myristic FAs (0.58 ± 0.56) and negative between palmitic and stearic FAs (–0.69 ± 0.45). The genetic correlations between the individual long-chain polyunsaturated FAs (PUFAs) were positive and moderate (>0.30). However, the genetic-correlation estimates between long-chain PUFAs and α-linolenic acid were low (<0.30), except for the correlation between arachidonic and α-linolenic acids. The genetic correlation estimates of the sums of SFAs with monounsaturated fatty acids and omega 6 FAs were low (0.25 ± 0.59 and –0.02 ± 0.51 respectively), high with PUFAs and omega 9 FAs (–0.85 ± 0.15 and 0.86 ± 0.17 respectively) and moderate with omega 3FAs (–0.67 ± 0.26). The present study demonstrated the existence of genetic variation and, hence, the possibility to increase the proportion of healthy and favourable beef FAs through selection. The results obtained in the study have provided knowledge to elucidate the additive genetic influence on FA composition of intramuscular fat. In addition, genetic-relationship estimates of intramuscular FA profile help seek strategies for genetic selection or genetic-based diet management to enhance the FA profile in Zebu cattle.
Collapse
|
22
|
Lingguizhugan Decoction Protects against High-Fat-Diet-Induced Nonalcoholic Fatty Liver Disease by Alleviating Oxidative Stress and Activating Cholesterol Secretion. Int J Genomics 2017; 2017:2790864. [PMID: 29464180 PMCID: PMC5804362 DOI: 10.1155/2017/2790864] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Revised: 09/11/2017] [Accepted: 11/07/2017] [Indexed: 12/13/2022] Open
Abstract
Background Nonalcoholic fatty liver disease (NAFLD) has become a leading cause of liver transplantation. Lingguizhugan decoction (LGZG), a classical Chinese herbal formula, has beneficial effects on NAFLD animal models. Our study examined the impact of LGZG on hepatic global transcriptome of high-fat-diet-induced NAFLD rats. Methods Three groups of Wistar rats were included: normal, NAFLD model, and LGZG-treated NAFLD groups. Four weeks for the treatment, liver tissues were harvested for RNA sequencing. Differentially expressed genes (DEGs) and enriched pathways were detected on hepatic global transcriptome profile. Real-time PCR validated the regulatory patterns of LGZG on NAFLD rats. Results DEGs between the NAFLD model and normal groups indicated the elevated peroxisome proliferator-activated receptor (PPAR) and hedgehog signaling pathways in NAFLD rats. In bile secretion pathway, genes involved in cholesterol secretion were activated by LGZG treatment. Increased expression of antioxidant OSIGN1 and decreased expression of genes (AHR, IRF2BP2, and RASGEF1B) that induce oxidative stress and inflammation were observed in NAFLD rats treated with LGZG. The regulatory patterns of LGZG treatment on these oxidative stress-related genes were confirmed by real-time PCR. Conclusion Our study revealed a “two-hits-targeting” mechanism of LGZG in the treatment for NAFLD: alleviating oxidative stress and activating cholesterol secretion.
Collapse
|
23
|
Huang M, Shen Y, Mao H, Chen L, Chen J, Guo X, Xu N. Circular RNA expression profiles in the porcine liver of two distinct phenotype pig breeds. ASIAN-AUSTRALASIAN JOURNAL OF ANIMAL SCIENCES 2017; 31:812-819. [PMID: 29268579 PMCID: PMC5933978 DOI: 10.5713/ajas.17.0651] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Revised: 10/06/2017] [Accepted: 11/30/2017] [Indexed: 12/02/2022]
Abstract
Objective An experiment was conducted to identify and characterize the circular RNA expression and metabolic characteristics in the liver of Jinhua pigs and Landrace pigs. Methods Three Jinhua pigs and three Landrace pigs respectively at 70-day were slaughtered to collect the liver tissue samples. Immediately after slaughter, blood samples were taken to detect serum biochemical indicators. Total RNA extracted from liver tissue samples were used to prepare the library and then sequence on HiSeq 2500. Bioinformatic methods were employed to analyze sequence data to identify the circRNAs and predict the potential roles of differentially expressed circRNAs between the two breeds. Results Significant differences in physiological and biochemical traits were observed between growing Jinhua and Landrace pigs. We identified 84,864 circRNA candidates in two breeds and 366 circRNAs were detected as significantly differentially expressed. Their host genes are involved in lipid biosynthetic and metabolic processes according to the gene ontology analysis and associated with metabolic pathways. Conclusion Our research represents the first description of circRNA profiles in the porcine liver from two divergent phenotype pigs. The predicted miRNA-circRNA interaction provides important basis for miRNA-circRNA relationships in the porcine liver. These data expand the repertories of porcine circRNA and are conducive to understanding the possible molecular mechanisms involved in miRNA and circRNA. Our study provides basic data for further research of the biological functions of circRNAs in the porcine liver.
Collapse
Affiliation(s)
- Minjie Huang
- College of Animal Science, Zhejiang University, Hangzhou 310058, China
| | - Yifei Shen
- College of Animal Science, Zhejiang University, Hangzhou 310058, China
| | - Haiguang Mao
- College of Animal Science, Zhejiang University, Hangzhou 310058, China
| | - Lixing Chen
- College of Animal Science, Zhejiang University, Hangzhou 310058, China
| | - Jiucheng Chen
- College of Animal Science, Zhejiang University, Hangzhou 310058, China
| | - Xiaoling Guo
- College of Animal Science, Zhejiang University, Hangzhou 310058, China
| | - Ningying Xu
- College of Animal Science, Zhejiang University, Hangzhou 310058, China
| |
Collapse
|
24
|
Imamura K, Tomita N, Kawakita Y, Ito Y, Ono K, Nii N, Miyazaki T, Yonemori K, Tawada M, Sumi H, Satoh Y, Yamamoto Y, Miyahisa I, Sasaki M, Satomi Y, Hirayama M, Nishigaki R, Maezaki H. Discovery of Novel and Potent Stearoyl Coenzyme A Desaturase 1 (SCD1) Inhibitors as Anticancer Agents. Bioorg Med Chem 2017; 25:3768-3779. [PMID: 28571972 DOI: 10.1016/j.bmc.2017.05.016] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Revised: 05/06/2017] [Accepted: 05/08/2017] [Indexed: 10/19/2022]
Abstract
A lead compound A was identified previously as an stearoyl coenzyme A desaturase (SCD) inhibitor during research on potential treatments for obesity. This compound showed high SCD1 binding affinity, but a poor pharmacokinetic (PK) profile and limited chemical accessibility, making it suboptimal for use in anticancer research. To identify potent SCD1 inhibitors with more promising PK profiles, we newly designed a series of 'non-spiro' 4, 4-disubstituted piperidine derivatives based on molecular modeling studies. As a result, we discovered compound 1a, which retained moderate SCD1 binding affinity. Optimization around 1a was accelerated by analyzing Hansch-Fujita and Hammett constants to obtain 4-phenyl-4-(trifluoromethyl)piperidine derivative 1n. Fine-tuning of the azole moiety of 1n led to compound 1o (T-3764518), which retained nanomolar affinity and exhibited an excellent PK profile. Reflecting the good potency and PK profile, orally administrated compound 1o showed significant pharmacodynamic (PD) marker reduction (at 0.3mg/kg, bid) in HCT116 mouse xenograft model and tumor growth suppression (at 1mg/kg, bid) in 786-O mouse xenograft model. In conclusion, we identified a new series of SCD1 inhibitors, represented by compound 1o, which represents a promising new chemical tool suitable for the study of SCD1 biology as well as the potential development of novel anticancer therapies.
Collapse
Affiliation(s)
- Keisuke Imamura
- Pharmaceutical Research Division, Takeda Pharmaceutical Company Ltd., 26-1, Muraokahigashi 2-chome, Fujisawa, Kanagawa 251-8555, Japan.
| | - Naoki Tomita
- Corporate Finance Department, Takeda Pharmaceutical Company Ltd., 12-10, Nihonbashi 2-chome, Chuo-ku, Tokyo 103-8668, Japan
| | - Youichi Kawakita
- Pharmaceutical Research Division, Takeda Pharmaceutical Company Ltd., 26-1, Muraokahigashi 2-chome, Fujisawa, Kanagawa 251-8555, Japan
| | - Yoshiteru Ito
- Pharmaceutical Research Division, Takeda Pharmaceutical Company Ltd., 26-1, Muraokahigashi 2-chome, Fujisawa, Kanagawa 251-8555, Japan
| | - Kouji Ono
- Pharmaceutical Research Division, Takeda Pharmaceutical Company Ltd., 26-1, Muraokahigashi 2-chome, Fujisawa, Kanagawa 251-8555, Japan
| | - Noriyuki Nii
- Pharmaceutical Research Division, Takeda Pharmaceutical Company Ltd., 26-1, Muraokahigashi 2-chome, Fujisawa, Kanagawa 251-8555, Japan
| | - Tohru Miyazaki
- Pharmaceutical Research Division, Takeda Pharmaceutical Company Ltd., 26-1, Muraokahigashi 2-chome, Fujisawa, Kanagawa 251-8555, Japan
| | - Kazuko Yonemori
- Pharmaceutical Research Division, Takeda Pharmaceutical Company Ltd., 26-1, Muraokahigashi 2-chome, Fujisawa, Kanagawa 251-8555, Japan
| | - Michiko Tawada
- Pharmaceutical Research Division, Takeda Pharmaceutical Company Ltd., 26-1, Muraokahigashi 2-chome, Fujisawa, Kanagawa 251-8555, Japan
| | - Hiroyuki Sumi
- Pharmaceutical Research Division, Takeda Pharmaceutical Company Ltd., 26-1, Muraokahigashi 2-chome, Fujisawa, Kanagawa 251-8555, Japan
| | - Yoshihiko Satoh
- Pharmaceutical Research Division, Takeda Pharmaceutical Company Ltd., 26-1, Muraokahigashi 2-chome, Fujisawa, Kanagawa 251-8555, Japan
| | - Yukiko Yamamoto
- Pharmaceutical Research Division, Takeda Pharmaceutical Company Ltd., 26-1, Muraokahigashi 2-chome, Fujisawa, Kanagawa 251-8555, Japan
| | - Ikuo Miyahisa
- Pharmaceutical Research Division, Takeda Pharmaceutical Company Ltd., 26-1, Muraokahigashi 2-chome, Fujisawa, Kanagawa 251-8555, Japan
| | - Masako Sasaki
- Pharmaceutical Research Division, Takeda Pharmaceutical Company Ltd., 26-1, Muraokahigashi 2-chome, Fujisawa, Kanagawa 251-8555, Japan
| | - Yoshinori Satomi
- Pharmaceutical Research Division, Takeda Pharmaceutical Company Ltd., 26-1, Muraokahigashi 2-chome, Fujisawa, Kanagawa 251-8555, Japan
| | - Megumi Hirayama
- Pharmaceutical Research Division, Takeda Pharmaceutical Company Ltd., 26-1, Muraokahigashi 2-chome, Fujisawa, Kanagawa 251-8555, Japan
| | - Ryuichi Nishigaki
- Pharmaceutical Research Division, Takeda Pharmaceutical Company Ltd., 26-1, Muraokahigashi 2-chome, Fujisawa, Kanagawa 251-8555, Japan
| | - Hironobu Maezaki
- Pharmaceutical Research Division, Takeda Pharmaceutical Company Ltd., 26-1, Muraokahigashi 2-chome, Fujisawa, Kanagawa 251-8555, Japan
| |
Collapse
|
25
|
Coomans de Brachène A, Dif N, de Rocca Serra A, Bonnineau C, Velghe AI, Larondelle Y, Tyteca D, Demoulin JB. PDGF-induced fibroblast growth requires monounsaturated fatty acid production by stearoyl-CoA desaturase. FEBS Open Bio 2017; 7:414-423. [PMID: 28286737 PMCID: PMC5337901 DOI: 10.1002/2211-5463.12194] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2016] [Revised: 11/29/2016] [Accepted: 12/29/2016] [Indexed: 11/11/2022] Open
Abstract
Stearoyl-coenzyme A desaturase (SCD) catalyzes the Δ9-cis desaturation of saturated fatty acids (SFA) to generate monounsaturated fatty acids (MUFA). This enzyme is highly up-regulated by platelet-derived growth factor (PDGF) in human fibroblasts. Accordingly, the analysis of cellular fatty acids by gas chromatography showed that PDGF significantly increased the proportion of MUFA, particularly palmitoleate, in cellular lipids. To further analyze the role of SCD in fibroblasts, we used small hairpin RNA targeting SCD (shSCD), which decreased the MUFA content. SCD down-regulation blunted the proliferation of fibroblasts in response to PDGF. This was confirmed using a pharmacological inhibitor of SCD. In addition, proliferation was blocked by palmitate and stearate (two SCD substrates) but not by palmitoleate and oleate (two SCD products). In the presence of an equal amount of oleate, palmitate had no effect on cell proliferation. SCD inhibition or down-regulation did not decrease PDGF receptor activity or signaling. However, by measuring plasma membrane lipid lateral diffusion by fluorescence recovery after photobleaching, we showed that the modulation of the MUFA/SFA ratio by PDGF and SCD inhibitor was related to modifications of membrane fluidity. Altogether, our data suggest that SCD is required for the response of normal fibroblasts to growth factors.
Collapse
Affiliation(s)
| | - Nicolas Dif
- de Duve Institute MEXP unit Université catholique de Louvain Brussels Belgium
| | | | - Chloé Bonnineau
- Institute of Life Sciences Université catholique de Louvain Louvain-La-Neuve Belgium
| | - Amélie I Velghe
- de Duve Institute MEXP unit Université catholique de Louvain Brussels Belgium
| | - Yvan Larondelle
- Institute of Life Sciences Université catholique de Louvain Louvain-La-Neuve Belgium
| | - Donatienne Tyteca
- de Duve Institute CELL unit Université catholique de Louvain Brussels Belgium
| | | |
Collapse
|
26
|
Ogasawara Y, Kira S, Mukai Y, Noda T, Yamamoto A. Ole1, fatty acid desaturase, is required for Atg9 delivery and isolation membrane expansion during autophagy in Saccharomyces cerevisiae. Biol Open 2017; 6:35-40. [PMID: 27881438 PMCID: PMC5278431 DOI: 10.1242/bio.022053] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Accepted: 11/15/2016] [Indexed: 02/02/2023] Open
Abstract
Macroautophagy, a major degradation pathway of cytoplasmic components, is carried out through formation of a double-membrane structure, the autophagosome. Although the involvement of specific lipid species in the formation process remains largely obscure, we recently showed that mono-unsaturated fatty acids (MUFA) generated by stearoyl-CoA desaturase 1 (SCD1) are required for autophagosome formation in mammalian cells. To obtain further insight into the role of MUFA in autophagy, in this study we analyzed the autophagic phenotypes of the yeast mutant of OLE1, an orthologue of SCD1. Δole1 cells were defective in nitrogen starvation-induced autophagy, and the Cvt pathway, when oleic acid was not supplied. Defects in elongation of the isolation membrane led to a defect in autophagosome formation. In the absence of Ole1, the transmembrane protein Atg9 was not able to reach the pre-autophagosomal structure (PAS), the site of autophagosome formation. Thus, autophagosome formation requires Ole1 during the delivery of Atg9 to the PAS/autophagosome from its cellular reservoir.
Collapse
Affiliation(s)
- Yuta Ogasawara
- Nagahama Institute of Bio-Science and Technology, 1266 Tamura, Nagahama, Shiga 526-0829, Japan
- Department of Anatomy and Molecular Cell Biology, Nagoya University Graduate School of Medicine, Nagoya 466-8550, Japan
| | - Shintaro Kira
- Graduate School of Dentistry, Osaka University, 1-8 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Yukio Mukai
- Nagahama Institute of Bio-Science and Technology, 1266 Tamura, Nagahama, Shiga 526-0829, Japan
| | - Takeshi Noda
- Graduate School of Dentistry, Osaka University, 1-8 Yamadaoka, Suita, Osaka 565-0871, Japan
- Graduate school of Frontier Bioscience, Osaka University, 1-8 Yamadaoka, Suita, Japan
| | - Akitsugu Yamamoto
- Nagahama Institute of Bio-Science and Technology, 1266 Tamura, Nagahama, Shiga 526-0829, Japan
| |
Collapse
|
27
|
Gotoh T, Joo ST. Characteristics and Health Benefit of Highly Marbled Wagyu and Hanwoo Beef. Korean J Food Sci Anim Resour 2016; 36:709-718. [PMID: 28115881 PMCID: PMC5243954 DOI: 10.5851/kosfa.2016.36.6.709] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Accepted: 12/02/2016] [Indexed: 01/10/2023] Open
Abstract
This review addresses the characteristics and health benefit of highly marbled Wagyu and Hanwoo beef. Marbling of Wagyu and Hanwoo beef has been increased in Japan and Korea to meet domestic consumer preferences. Wagyu and Hanwoo cattle have high potential of accumulating intramuscular fat (IMF) and producing highly marbled beef. The IMF content varies depending on the feeding of time, finishing diet, and breed type. IMF increases when feeding time is increased. The rate of IMF increase in grain-fed cattle is faster than that in pasture-fed cattle. Fatty acid composition are also different depending on breeds. Highly marbled Wagyu and Hanwoo beef have higher proportions of monounsaturated fatty acid (MUFA) due to higher concentrations of oleic acid. MUFAs have little effect on total cholesterol. They are heart-healthy dietary fat because they can lower low-density lipoprotein (LDL)-cholesterol while increasing high-density lipoprotein (HDL)-cholesterol. Clinical trials have indicated that highly marbled beef does not increase LDL-cholesterol. This review also emphasizes that high oleic acid beef such as Wagyu and Hanwoo beef might be able to reduce risk factors for cardiovascular disease.
Collapse
Affiliation(s)
- Takafumi Gotoh
- Kuju Agricultural Research Center, Faculty of Agriculture, Kyushu University 8780201, Japan
| | - Seon-Tea Joo
- Division of Applied Life Science (BK21 ), Gyeongsang National University, Jinju 52852, Korea
| |
Collapse
|
28
|
Li C, Sun D, Zhang S, Yang S, Alim MA, Zhang Q, Li Y, Liu L. Genetic effects of FASN, PPARGC1A, ABCG2 and IGF1 revealing the association with milk fatty acids in a Chinese Holstein cattle population based on a post genome-wide association study. BMC Genet 2016; 17:110. [PMID: 27468856 PMCID: PMC4963957 DOI: 10.1186/s12863-016-0418-x] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2016] [Accepted: 07/20/2016] [Indexed: 02/01/2023] Open
Abstract
Background A previous genome-wide association study deduced that one (ARS-BFGL-NGS-39328), two (Hapmap26001-BTC-038813 and Hapmap31284-BTC-039204), two (Hapmap26001-BTC-038813 and BTB-00246150), and one (Hapmap50366-BTA-46960) genome-wide significant single nucleotide polymorphisms (SNPs) associated with milk fatty acids were close to or within the fatty acid synthase (FASN), peroxisome proliferator-activated receptor gamma, coactivator 1 alpha (PPARGC1A), ATP-binding cassette, sub-family G, member 2 (ABCG2) and insulin-like growth factor 1 (IGF1) genes. To further confirm the linkage and reveal the genetic effects of these four candidate genes on milk fatty acid composition, genetic polymorphisms were identified and genotype-phenotype associations were performed in a Chinese Holstein cattle population. Results Nine SNPs were identified in FASN, among which SNP rs41919985 was predicted to result in an amino acid substitution from threonine (ACC) to alanine (GCC), five SNPs (rs136947640, rs134340637, rs41919992, rs41919984 and rs41919986) were synonymous mutations, and the remaining three (rs41919999, rs132865003 and rs133498277) were found in FASN introns. Only one SNP each was identified for PPARGC1A, ABCG2 and IGF1. Association studies revealed that FASN, PPARGC1A, ABCG2 and IGF1 were mainly associated with medium-chain saturated fatty acids and long-chain unsaturated fatty acids, especially FASN for C10:0, C12:0 and C14:0. Strong linkage disequilibrium was observed among ARS-BFGL-NGS-39328 and rs132865003 and rs134340637 in FASN (D´ > 0.9), and among Hapmap26001-BTC-038813 and Hapmap31284-BTC-039204 and rs109579682 in PPARGC1A (D´ > 0.9). Subsequently, haplotype-based analysis revealed significant associations of the haplotypes encompassing eight FASN SNPs (rs41919999, rs132865003, rs134340637, rs41919992, rs133498277, rs41919984, rs41919985 and rs41919986) with C10:0, C12:0, C14:0, C18:1n9c, saturated fatty acids (SFA) and unsaturated fatty acids (UFA) (P = 0.0204 to P < 0.0001). Conclusion Our study confirmed the linkage between the significant SNPs in our previous genome-wide association study and variants in FASN and PPARGC1A. SNPs within FASN, PPARGC1A, ABCG2 and IGF1 showed significant genetic effects on milk fatty acid composition in dairy cattle, indicating their potential functions in milk fatty acids synthesis and metabolism. The findings presented here provide evidence for the selection of dairy cows with healthier milk fatty acid composition by marker-assisted breeding or genomic selection schemes, as well as furthering our understanding of technological processing aspects of cows’ milk. Electronic supplementary material The online version of this article (doi:10.1186/s12863-016-0418-x) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Cong Li
- Department of Animal Genetics and Breeding, College of Animal Science and Technology, Key Laboratory of Animal Genetics and Breeding of Ministry of Agriculture, National Engineering Laboratory for Animal Breeding, China Agricultural University, 2 Yuanmingyuan West Road, Beijing, 100193, China
| | - Dongxiao Sun
- Department of Animal Genetics and Breeding, College of Animal Science and Technology, Key Laboratory of Animal Genetics and Breeding of Ministry of Agriculture, National Engineering Laboratory for Animal Breeding, China Agricultural University, 2 Yuanmingyuan West Road, Beijing, 100193, China.
| | - Shengli Zhang
- Department of Animal Genetics and Breeding, College of Animal Science and Technology, Key Laboratory of Animal Genetics and Breeding of Ministry of Agriculture, National Engineering Laboratory for Animal Breeding, China Agricultural University, 2 Yuanmingyuan West Road, Beijing, 100193, China.
| | - Shaohua Yang
- Department of Animal Genetics and Breeding, College of Animal Science and Technology, Key Laboratory of Animal Genetics and Breeding of Ministry of Agriculture, National Engineering Laboratory for Animal Breeding, China Agricultural University, 2 Yuanmingyuan West Road, Beijing, 100193, China
| | - M A Alim
- Department of Animal Genetics and Breeding, College of Animal Science and Technology, Key Laboratory of Animal Genetics and Breeding of Ministry of Agriculture, National Engineering Laboratory for Animal Breeding, China Agricultural University, 2 Yuanmingyuan West Road, Beijing, 100193, China
| | - Qin Zhang
- Department of Animal Genetics and Breeding, College of Animal Science and Technology, Key Laboratory of Animal Genetics and Breeding of Ministry of Agriculture, National Engineering Laboratory for Animal Breeding, China Agricultural University, 2 Yuanmingyuan West Road, Beijing, 100193, China
| | - Yanhua Li
- Beijing Dairy Cattle Center, Beijing, 100085, China
| | - Lin Liu
- Beijing Dairy Cattle Center, Beijing, 100085, China
| |
Collapse
|
29
|
Powell DJ, Velleman SG, Cowieson AJ, Singh M, Muir WI. Influence of hatch time and access to feed on intramuscular adipose tissue deposition in broilers. Poult Sci 2016; 95:1449-56. [PMID: 26976909 DOI: 10.3382/ps/pew063] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2015] [Accepted: 01/20/2016] [Indexed: 11/20/2022] Open
Abstract
The effect of hatch time and subsequent access to feed on intramuscular adipose tissue deposition was studied in the pectoralis major muscle of male Ross 308 broiler chickens. Based on their hatch time chicks were classified as early (EH), midterm (MH), or late (LH) hatchers, with an average incubation duration of 497.7 h for EH, 508.8 h for MH, and 514.5 h for LH birds. Chicks were provided access to feed either immediately at hatch, or 24 h after the conclusion of the hatch window. Expression of the adipogenic regulatory genes peroxisome proliferator-activated receptor gamma (PPARγ), and stearoyl-CoA desaturase (SCD), were measured at the time of hatch, and zero, one, 4, 7, 28, and 40 d. Intramuscular adipocyte cell width and visualization of adipose tissue deposition was observed at 28 and 40 d. Expression of PPARγ was increased in the pectoralis major of LH birds at the time of hatch, zero, and one d. The expression of PPARγ at one and 7 d, and SCD at 7 d were increased in all birds that received delayed access to feed. At 28 d, adipocyte cell width was increased in LH birds with delayed access to feed, compared to EH and MH birds with delayed access to feed and LH birds with immediate access to feed. At 40 d, adipocyte cell width was increased in all birds that received delayed access to feed. Also at 40 d, there was a trend (P = 0.078) for more extensive intramuscular adipose tissue deposition in LH than EH birds, and in birds with delayed access to feed (P = 0.075). These data indicate delayed access to feed increases intramuscular adipose tissue deposition in the pectoralis major muscle, and suggest that hatch time influences this regulation.
Collapse
Affiliation(s)
- D J Powell
- Faculty of Veterinary Science, The University of Sydney, Camden, NSW 2750, Australia Poultry CRC, PO Box U242, University of New England, Armidale, NSW 2351, Australia
| | - S G Velleman
- Department of Animal Sciences, The Ohio State University/Ohio Agricultural Research and Development Center, Wooster 44691
| | - A J Cowieson
- Faculty of Veterinary Science, The University of Sydney, Camden, NSW 2750, Australia
| | - M Singh
- Faculty of Veterinary Science, The University of Sydney, Camden, NSW 2750, Australia
| | - W I Muir
- Faculty of Veterinary Science, The University of Sydney, Camden, NSW 2750, Australia
| |
Collapse
|
30
|
Yonekura S, Hirota S, Miyazaki H, Tokutake Y. Subcellular Localization and Polymorphism of Bovine FABP4 in Bovine Intramuscular Adipocytes. Anim Biotechnol 2016; 27:96-103. [DOI: 10.1080/10495398.2015.1102148] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
31
|
Ralston JC, Metherel AH, Stark KD, Mutch DM. SCD1 mediates the influence of exogenous saturated and monounsaturated fatty acids in adipocytes: Effects on cellular stress, inflammatory markers and fatty acid elongation. J Nutr Biochem 2016; 27:241-8. [DOI: 10.1016/j.jnutbio.2015.09.011] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2015] [Revised: 09/04/2015] [Accepted: 09/09/2015] [Indexed: 01/12/2023]
|
32
|
Tian Y, Tao L, Zhao S, Tai D, Liu D, Liu P. Isolation and morphological characterization of ovine amniotic fluid mesenchymal stem cells. Exp Anim 2015; 65:125-34. [PMID: 26616638 PMCID: PMC4873481 DOI: 10.1538/expanim.15-0031] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Mesenchymal stem cells (MSCs) are one of the most promising cell populations for tissue engineering and regenerative medicine. Of utmost importance to MSC research is identification of MSC sources that are easily obtainable and stable. Several studies have shown that MSCs can be isolated from amniotic fluid. The sheep is one of the main types of farm animal, and it has many biophysical and biochemical similarities to humans. Here, we obtained MSCs from ovine amniotic fluid and determined the expansion capacity, surface and intracellular marker expression, karyotype, and multilineage differentiation ability of these ovine amniotic fluid mesenchymal stem cells (oAF-MSCs). Moreover, expression levels of differentiation markers were measured using reverse transcription-qPCR (RT-qPCR). Our phenotypic analysis shows that the isolated oAF-MSCs are indeed MSCs.
Collapse
Affiliation(s)
- Yunyun Tian
- College of Life Sciences, Inner Mongolia University, Inner Mongolia, Hohhot 010021, P.R.China
| | | | | | | | | | | |
Collapse
|
33
|
Chen L, Ekine-Dzivenu C, Vinsky M, Basarab J, Aalhus J, Dugan MER, Fitzsimmons C, Stothard P, Li C. Genome-wide association and genomic prediction of breeding values for fatty acid composition in subcutaneous adipose and longissimus lumborum muscle of beef cattle. BMC Genet 2015; 16:135. [PMID: 26589139 PMCID: PMC4654876 DOI: 10.1186/s12863-015-0290-0] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2015] [Accepted: 10/30/2015] [Indexed: 01/05/2023] Open
Abstract
BACKGROUND Identification of genetic variants that are associated with fatty acid composition in beef will enhance our understanding of host genetic influence on the trait and also allow for more effective improvement of beef fatty acid profiles through genomic selection and marker-assisted diet management. In this study, 81 and 83 fatty acid traits were measured in subcutaneous adipose (SQ) and longissimus lumborum muscle (LL), respectively, from 1366 purebred and crossbred beef steers and heifers that were genotyped on the Illumina BovineSNP50 Beadchip. The objective was to conduct genome-wide association studies (GWAS) for the fatty acid traits and to evaluate the accuracy of genomic prediction for fatty acid composition using genomic best linear unbiased prediction (GBLUP) and Bayesian methods. RESULTS In total, 302 and 360 significant SNPs spanning all autosomal chromosomes were identified to be associated with fatty acid composition in SQ and LL tissues, respectively. Proportions of total genetic variance explained by individual significant SNPs ranged from 0.03 to 11.06% in SQ, and from 0.005 to 24.28% in the LL muscle. Markers with relatively large effects were located near fatty acid synthase (FASN), stearoyl-CoA desaturase (SCD), and thyroid hormone responsive (THRSP) genes. For the majority of the fatty acid traits studied, the accuracy of genomic prediction was relatively low (<0.40). Relatively high accuracies (> = 0.50) were achieved for 10:0, 12:0, 14:0, 15:0, 16:0, 9c-14:1, 12c-16:1, 13c-18:1, and health index (HI) in LL, and for 12:0, 14:0, 15:0, 10 t,12c-18:2, and 11 t,13c + 11c,13 t-18:2 in SQ. The Bayesian method performed similarly as GBLUP for most of the traits but substantially better for traits that were affected by SNPs of large effects as identified by GWAS. CONCLUSIONS Fatty acid composition in beef is influenced by a few host genes with major effects and many genes of smaller effects. With the current training population size and marker density, genomic prediction has the potential to predict the breeding values of fatty acid composition in beef cattle at a moderate to relatively high accuracy for fatty acids that have moderate to high heritability.
Collapse
Affiliation(s)
- Liuhong Chen
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB, T6G 2P5, Canada.
- Lacombe Research Centre, Agriculture and Agri-Food Canada, 6000 C&E Trail, Lacombe, AB, T4L 1 W1, Canada.
| | - Chinyere Ekine-Dzivenu
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB, T6G 2P5, Canada.
| | - Michael Vinsky
- Lacombe Research Centre, Agriculture and Agri-Food Canada, 6000 C&E Trail, Lacombe, AB, T4L 1 W1, Canada.
| | - John Basarab
- Lacombe Research Centre, Alberta Agriculture and Forestry, 6000 C & E Trail, Lacombe, AB, T4L 1 W1, Canada.
| | - Jennifer Aalhus
- Lacombe Research Centre, Agriculture and Agri-Food Canada, 6000 C&E Trail, Lacombe, AB, T4L 1 W1, Canada.
| | - Mike E R Dugan
- Lacombe Research Centre, Agriculture and Agri-Food Canada, 6000 C&E Trail, Lacombe, AB, T4L 1 W1, Canada.
| | - Carolyn Fitzsimmons
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB, T6G 2P5, Canada.
- Lacombe Research Centre, Agriculture and Agri-Food Canada, 6000 C&E Trail, Lacombe, AB, T4L 1 W1, Canada.
| | - Paul Stothard
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB, T6G 2P5, Canada.
| | - Changxi Li
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB, T6G 2P5, Canada.
- Lacombe Research Centre, Agriculture and Agri-Food Canada, 6000 C&E Trail, Lacombe, AB, T4L 1 W1, Canada.
| |
Collapse
|
34
|
Ralston JC, Mutch DM. SCD1 inhibition during 3T3-L1 adipocyte differentiation remodels triacylglycerol, diacylglycerol and phospholipid fatty acid composition. Prostaglandins Leukot Essent Fatty Acids 2015; 98:29-37. [PMID: 25959085 DOI: 10.1016/j.plefa.2015.04.008] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2015] [Revised: 04/16/2015] [Accepted: 04/17/2015] [Indexed: 01/06/2023]
Abstract
The conversion of saturated fatty acids (FAs) palmitate (16:0) and stearate (18:0) into monounsaturated FAs palmitoleate (16:1n-7) and oleate (18:1n-9) is catalyzed by stearoyl-CoA desaturase 1 (SCD1). These FAs represent the dominant constituents of adipocyte triacylglycerols (TAGs) and phospholipids (PLs). Given the critical role of SCD1 in lipid metabolism and the notable increase in its expression during adipogenesis, reductions in SCD1 activity have the potential to compromise the adipocyte's ability to accumulate lipid. The current study used thin-layer and gas chromatography to examine the content and FA composition of TAGs, PLs, cholesteryl esters, diacylglycerols and free fatty acids in SCD1-inhibited differentiating 3T3-L1 adipocyte cells. SCD1 inhibition reduced total cellular PL and TAG content concurrent with the down-regulation of genes involved in TAG and PL biosynthesis; however, the relative amount of PL was unaltered. While total DAG levels were increased ~2.7-fold in SCD1-inhibited adipocytes, this did not induce JNK activation; however, phosphorylated (Ser473) AKT was significantly reduced. As expected, total SFA and MUFA content were increased (~1.3-fold) and decreased (~4.0-fold). Further, SCD1 inhibition caused a ~2.2-fold increase and a ~8.3-fold decrease in total cellular 18:0 and 16:1n-7 levels, respectively. Similar changes were also seen in other lipid fractions. The levels of other FAs, including polyunsaturated FAs, were also changed in SCD1-inhibited adipocytes. Together, these results add to the existing body of knowledge regarding SCD1 function in adipocytes and highlight its important role in regulating global adipocyte lipid composition.
Collapse
Affiliation(s)
- Jessica C Ralston
- Department of Human Health and Nutritional Sciences, University of Guelph, Guelph, Ontario, Canada N1G 2W1.
| | - David M Mutch
- Department of Human Health and Nutritional Sciences, University of Guelph, Guelph, Ontario, Canada N1G 2W1.
| |
Collapse
|
35
|
von Roemeling CA, Marlow LA, Pinkerton AB, Crist A, Miller J, Tun HW, Smallridge RC, Copland JA. Aberrant lipid metabolism in anaplastic thyroid carcinoma reveals stearoyl CoA desaturase 1 as a novel therapeutic target. J Clin Endocrinol Metab 2015; 100:E697-709. [PMID: 25675381 PMCID: PMC4422887 DOI: 10.1210/jc.2014-2764] [Citation(s) in RCA: 113] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
CONTEXT Currently there are no efficacious therapies for patients with anaplastic thyroid carcinoma (ATC) that result in long-term disease stabilization or regression. OBJECTIVE We sought to identify pathways critical for ATC cell progression and viability in an effort to develop new therapeutic strategies. We investigated the effects of targeted inhibition of stearoyl-CoA desaturase 1 (SCD1), a constituent of fatty acid metabolism overexpressed in ATC. DESIGN A gene array of ATC and normal thyroid tissue was performed to identify gene transcripts demonstrating altered expression in tumor samples. Effects of pharmacological and the genetic inhibition of SCD1 on tumor cell viability as well as cell signaling responses to therapy were evaluated in in vitro and in vivo models of this rare, lethal malignancy. RESULTS The gene array analysis revealed consistent distortion of fatty acid metabolism and overexpression of SCD1 in ATC and well-differentiated thyroid carcinomas. SCD1 is critical for ATC cell survival and proliferation, the inhibition of which induced endoplasmic reticulum stress, activation of the unfolded protein response, and apoptosis. Combined suppression of endoplasmic reticulum-associated degradation, a prosurvival component of the unfolded protein response, using proteasome inhibitors resulted in a synergistic decrease in tumor cell proliferation and increased cell death. CONCLUSIONS SCD1 is a novel oncogenic factor specifically required for tumor cell viability in ATC. Furthermore, the expression of SCD1 appears to be correlated with thyroid tumor aggressiveness and may serve as a prognostic biomarker. These findings substantiate SCD1 as a novel tumor-specific target for therapy in patients with ATC and should be further investigated in a clinical setting.
Collapse
Affiliation(s)
- Christina A von Roemeling
- Departments of Cancer Biology (C.A.v.R., L.A.M., A.C., J.M., H.W.T., R.C.S., J.A.C.) and Hematology and Oncology (H.W.T.), and Division of Endocrinology and Metabolism (R.C.S.), Mayo Clinic, Jacksonville, Florida, 32224; The Mayo Clinic Graduate School (C.A.v.R.), Rochester, Minnesota 55905; and Conrad Prebys Center for Chemical Genomics (A.B.P.), Sanford-Burnham Medical Research Institute, La Jolla, California 92037
| | | | | | | | | | | | | | | |
Collapse
|
36
|
Malodobra-Mazur M, Dziewulska A, Kozinski K, Dobrzyn P, Kolczynska K, Janikiewicz J, Dobrzyn A. Stearoyl-CoA desaturase regulates inflammatory gene expression by changing DNA methylation level in 3T3 adipocytes. Int J Biochem Cell Biol 2014; 55:40-50. [DOI: 10.1016/j.biocel.2014.08.005] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2014] [Revised: 07/24/2014] [Accepted: 08/06/2014] [Indexed: 11/29/2022]
|
37
|
Gotoh T, Takahashi H, Nishimura T, Kuchida K, Mannen H. Meat produced by Japanese Black cattle and Wagyu. Anim Front 2014. [DOI: 10.2527/af.2014-0033] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- T. Gotoh
- Kuju Agricultural Research Center, Faculty of Agriculture, Kyushu University 8780201, Japan
| | - H. Takahashi
- Muscle Biology and Meat Science laboratory, Research Faculty of Agriculture, Hokkaido University, 060-8589, Japan
| | - T. Nishimura
- Obihiro University of Agriculture and Veterinary Medicine, 080-8555, Japan
| | - K. Kuchida
- Laboratory of Animal Breeding and Genetics, Graduate School of Agricultural Science, Kobe University, 657-8501, Japan
| | - H. Mannen
- Kuju Agricultural Research Center, Faculty of Agriculture, Kyushu University 8780201, Japan
| |
Collapse
|
38
|
Effects of hypercholesterolemic diet enriched with onion as functional ingredient on fatty acid metabolism in Wistar rats. Food Res Int 2014; 64:546-552. [DOI: 10.1016/j.foodres.2014.07.047] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2014] [Revised: 07/21/2014] [Accepted: 07/24/2014] [Indexed: 11/18/2022]
|
39
|
Avilés C, Polvillo O, Peña F, Horcada A, Juárez M, Molina A. Association Study Between a SNP in BovineSCD1Gene with Fatty Acid Composition in a Spanish Commercial Population Fed with Two Different Diets. Anim Biotechnol 2014; 26:40-4. [DOI: 10.1080/10495398.2014.880712] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
40
|
Klawitter J, Bek S, Zakaria M, Zeng C, Hornberger A, Gilbert R, Shokati T, Klawitter J, Christians U, Boernsen KO. Fatty acid desaturation index in human plasma: comparison of different analytical methodologies for the evaluation of diet effects. Anal Bioanal Chem 2014; 406:6399-408. [PMID: 25116600 DOI: 10.1007/s00216-014-8020-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2014] [Revised: 06/30/2014] [Accepted: 07/04/2014] [Indexed: 12/14/2022]
Abstract
Stearoyl-CoA desaturase 1 (SCD1) plays a role in the development of obesity and related conditions, such as insulin resistance, and potentially also in neurological and heart diseases. The activity of SCD1 can be monitored using the desaturation index (DI), the ratio of product (16:1n-7 and 18:1n-9) to precursor (16:0 and 18:0) fatty acids. Here, different analytical strategies were applied to identify the method which best supports SCD1 biology. A novel effective approach was the use of the SCD1-independent fatty acid (16:1n-10) as a negative control. The first approach was based on a simple extraction followed by neutral loss triglyceride fatty acid analysis. The second approach was based on the saponification of triglycerides followed by fatty acid analysis (specific for the position of the double bond within monounsaturated fatty acids (MUFAs)). In addition to the analytical LC-MS assays, different matrices (plasma total triglyceride fraction and the very low-density lipoprotein (VLDL) fraction) were investigated to identify the best for studying changes in SCD1 activity. Samples from volunteers on a high-carbohydrate diet were analyzed. Both ultra HPLC (UHPLC)-MS-based assays showed acceptable accuracies (75-125% of nominal) and precisions (<20%) for the analysis of DI-specific fatty acids in VLDL and plasma. The most specific assay for the analysis of the liver SCD activity was then validated for specificity and selectivity, intra- and interday accuracy and precision, matrix effects, dilution effects, and analyte stability. After 3 days of high-carbohydrate diet, only the specific fatty acids in human plasma VLDL showed a significant increase in DI and associated SCD1 activity.
Collapse
Affiliation(s)
- Jost Klawitter
- iC42 Integrated Solutions in Systems Biology, University of Colorado, Aurora, CO, 80045-7503, USA,
| | | | | | | | | | | | | | | | | | | |
Collapse
|
41
|
Krautbauer S, Eisinger K, Neumeier M, Hader Y, Buettner R, Schmid PM, Aslanidis C, Buechler C. Free fatty acids, lipopolysaccharide and IL-1α induce adipocyte manganese superoxide dismutase which is increased in visceral adipose tissues of obese rodents. PLoS One 2014; 9:e86866. [PMID: 24475187 PMCID: PMC3901719 DOI: 10.1371/journal.pone.0086866] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2013] [Accepted: 12/17/2013] [Indexed: 12/21/2022] Open
Abstract
Excess fat storage in adipocytes is associated with increased generation of reactive oxygen species (ROS) and impaired activity of antioxidant mechanisms. Manganese superoxide dismutase (MnSOD) is a mitochondrial enzyme involved in detoxification of ROS, and objective of the current study is to analyze expression and regulation of MnSOD in obesity. MnSOD is increased in visceral but not subcutaneous fat depots of rodents kept on high fat diets (HFD) and ob/ob mice. MnSOD is elevated in visceral adipocytes of fat fed mice and exposure of differentiating 3T3-L1 cells to lipopolysaccharide, IL-1α, saturated, monounsaturated and polyunsaturated free fatty acids (FFA) upregulates its level. FFA do not alter cytochrome oxidase 4 arguing against overall induction of mitochondrial enzymes. Upregulation of MnSOD in fat loaded cells is not mediated by IL-6, TNF or sterol regulatory element binding protein 2 which are induced in these cells. MnSOD is similarly abundant in perirenal fat of Zucker diabetic rats and non-diabetic animals with similar body weight and glucose has no effect on MnSOD in 3T3-L1 cells. To evaluate whether MnSOD affects adipocyte fat storage, MnSOD was knocked-down in adipocytes for the last three days of differentiation and in mature adipocytes. Knock-down of MnSOD does neither alter lipid storage nor viability of these cells. Heme oxygenase-1 which is induced upon oxidative stress is not altered while antioxidative capacity of the cells is modestly reduced. Current data show that inflammation and excess triglyceride storage raise adipocyte MnSOD which is induced in epididymal adipocytes in obesity.
Collapse
Affiliation(s)
- Sabrina Krautbauer
- Department of Internal Medicine I, Regensburg University Hospital, Regensburg, Germany
| | - Kristina Eisinger
- Department of Internal Medicine I, Regensburg University Hospital, Regensburg, Germany
| | - Markus Neumeier
- Department of Internal Medicine I, Regensburg University Hospital, Regensburg, Germany
| | - Yvonne Hader
- Department of Internal Medicine I, Regensburg University Hospital, Regensburg, Germany
| | - Roland Buettner
- Department of Internal Medicine I, Regensburg University Hospital, Regensburg, Germany
| | - Peter M. Schmid
- Department of Internal Medicine II, Regensburg University Hospital, Regensburg, Germany
| | - Charalampos Aslanidis
- Institute of Clinical Chemistry and Laboratory Medicine, Regensburg University Hospital, Regensburg, Germany
| | - Christa Buechler
- Department of Internal Medicine I, Regensburg University Hospital, Regensburg, Germany
- * E-mail:
| |
Collapse
|
42
|
Ekine-Dzivenu C, Chen L, Vinsky M, Aldai N, Dugan MER, McAllister TA, Wang Z, Okine E, Li C. Estimates of genetic parameters for fatty acids in brisket adipose tissue of Canadian commercial crossbred beef steers. Meat Sci 2013; 96:1517-26. [PMID: 24315800 DOI: 10.1016/j.meatsci.2013.10.011] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2013] [Revised: 09/27/2013] [Accepted: 10/04/2013] [Indexed: 12/18/2022]
Abstract
Heritability and genetic and phenotypic correlations between 15 individuals and 10 groups of fatty acids with a concentration greater than 0.5% in the brisket adipose tissue of 223 Angus and Charolais based crossbred commercial steers were estimated using univariate and bivariate animal models. Individual saturated fatty acids were low to moderately heritable, with heritability estimates ranging from 0.05 (C16:0) to 0.31 (C15:0). Individual monounsaturated fatty acids were low to moderately highly heritable ranging from 0.04 (9c C17:1 and 11c C18:1) to 0.51 (9c C14:1). Polyunsaturated fatty acid C18:2n-6 was moderately heritable (0.17). Among groups of fatty acids, heritability estimates ranged from 0.03 for branched chain fatty acid (BCFA) and n-6/n-3 to 0.16 for n-6 and Health Index. A range of low (0.00) to high (1.00) phenotypic and genetic correlations was observed among the 25 fatty acids considered in this study. In general, fatty acids such as conjugated linoleic acid (CLA) and 11t C18:1, with potential health benefits, showed significant antagonistic correlations with unhealthy fatty acids such as C14:0 and C16:0. The results from this study provide insight into the direct genetic control of host genes on fatty acid composition of beef tissues and will facilitate designs of genetic selection and/or genetic based diet management to improve fatty acid composition in beef cattle.
Collapse
Affiliation(s)
- C Ekine-Dzivenu
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB T6G 2P5, Canada
| | - L Chen
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB T6G 2P5, Canada
| | - M Vinsky
- Agriculture and Agri-Food Canada, Lacombe Research Centre, 6000 C&E Trail, Lacombe, AB T4L 1W1, Canada
| | - N Aldai
- Agriculture and Agri-Food Canada, Lacombe Research Centre, 6000 C&E Trail, Lacombe, AB T4L 1W1, Canada; Lascaray Research Centre, University of the Basque Country (UPV-EHU), 01006 Vitoria-Gasteiz, Spain
| | - M E R Dugan
- Agriculture and Agri-Food Canada, Lacombe Research Centre, 6000 C&E Trail, Lacombe, AB T4L 1W1, Canada
| | - T A McAllister
- Agriculture and Agri-Food Canada, Lethbridge Research Centre, 5403-1st Avenue South, Lethbridge, AB T1J 4B1, Canada
| | - Z Wang
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB T6G 2P5, Canada
| | - E Okine
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB T6G 2P5, Canada
| | - C Li
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB T6G 2P5, Canada; Agriculture and Agri-Food Canada, Lacombe Research Centre, 6000 C&E Trail, Lacombe, AB T4L 1W1, Canada.
| |
Collapse
|
43
|
Zhang H, Li S. Molecular mechanisms for survival regulation of chronic myeloid leukemia stem cells. Protein Cell 2013; 4:186-96. [PMID: 23483480 DOI: 10.1007/s13238-013-2115-0] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2012] [Accepted: 01/16/2013] [Indexed: 12/15/2022] Open
Abstract
Studies on chronic myeloid leukemia (CML) have served as a paradigm for cancer research and therapy. These studies involve the identification of the first cancer-associated chromosomal abnormality and the subsequent development of tyrosine kinase inhibitors (TKIs) that inhibit BCR-ABL kinase activity in CML. It becomes clear that leukemia stem cells (LSCs) in CML which are resistant to TKIs, and eradication of LSCs appears to be extremely difficult. Therefore, one of the major issues in current CML biology is to understand the biology of LSCs and to investigate why LSCs are insensitive to TKI monotherapy for developing curative therapeutic strategies. Studies from our group and others have revealed that CML LSCs form a hierarchy similar to that seen in normal hematopoiesis, in which a rare stem cell population with limitless self-renewal potential gives rise to progenies that lack such potential. LSCs also possess biological features that are different from those of normal hematopoietic stem cells (HSCs) and are critical for their malignant characteristics. In this review, we summarize the latest progress in CML field, and attempt to understand the molecular mechanisms of survival regulation of LSCs.
Collapse
Affiliation(s)
- Haojian Zhang
- Division of Hematology/Oncology, Department of Medicine, University of Massachusetts Medical School, Worcester, MA 01605, USA
| | | |
Collapse
|
44
|
Zhang Y, Wang H, Zhang J, Lv J, Huang Y. Positive feedback loop and synergistic effects between hypoxia-inducible factor-2α and stearoyl-CoA desaturase-1 promote tumorigenesis in clear cell renal cell carcinoma. Cancer Sci 2013; 104:416-22. [PMID: 23331615 DOI: 10.1111/cas.12108] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2012] [Revised: 12/05/2012] [Accepted: 12/22/2012] [Indexed: 01/11/2023] Open
Abstract
Adapting to hypoxic stress is pivotal in tumor progression and determining tumor malignancy. The transcriptional factor hypoxia-inducible factor (HIF) is crucial in modulating tumorous hypoxic responses through altering cell energy metabolism, which includes the modification of glucose and lipid metabolism-associated gene expression. Stearoyl-CoA desaturase-1 (SCD1) is the main isoform of SCDs, the rate-limiting enzymes in the biosynthesis of monounsaturated fatty acids from saturated fatty acids, which is extensively activated in cancer progression. In this study, we found that SCD1 and HIF-2α were overexpressed in human clear cell renal cell carcinoma (ccRCC) tissues and ccRCC cell lines, and were upregulated in the 786-0 ccRCC cell line under hypoxia. Knockdown of SCD1 or HIF-2α impacted the other's expression. Enhancing SCD1 resulted in HIF-2α upregulation, which could be blocked by inhibiting the PI3K/Akt pathway. Deficiency of SCD1 or HIF-2α in 768-0 cells led to apoptosis, less colony formation ability, and decreased cell migration. More obvious effects were observed in 786-0 cells with double SCD1 and HIF-2α knockdown. These results indicate a PI3K/Akt-mediated loop between SCD1 and HIF-2α that mutually enhances their protein levels. Both SCD1 and HIF-2α are critical to promoting tumorigenesis by synergistically acting on maintaining cell survival, triggering cell migration, and enhancing the colony formation ability of cancer cells.
Collapse
Affiliation(s)
- Yujian Zhang
- Department of Urology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | | | | | | | | |
Collapse
|
45
|
Yeon SH, Lee SH, Choi BH, Lee HJ, Jang GW, Lee KT, Kim KH, Lee JH, Chung HY. Genetic variation of FASN is associated with fatty acid composition of Hanwoo. Meat Sci 2013; 94:133-8. [PMID: 23403305 DOI: 10.1016/j.meatsci.2013.01.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2012] [Revised: 12/31/2012] [Accepted: 01/02/2013] [Indexed: 10/27/2022]
Abstract
The objective of this study was to identify genetic variants in the bovine fatty acid synthase (FASN) gene and to evaluate associations with fatty acid composition from longissimus lumborum muscle using 90 purebred Hanwoo steers. Sequence alignments observed 6 genetic variants located in exons 20, 24, 32, 34, and 39, and PCR-RFLP analysis confirmed these variations. Genotypes of the g.15532A>C locus were significantly associated with Linolenic acid (C18:3), and genotypes of the g.17924G>A locus were significantly associated with Palmitic (C16:0), Palmitoleic (C16:1), Oleic (C18:1), saturated fatty acids, and unsaturated fatty acids. The analysis revealed that SFA and UFA showed significant correlations with fatty acid composition (Myristic (C14:0), Palmitic (C16:0), Stearic (C18:0), Oleic (C18:1), and Eicosenoic (C20:1) acids). Oleic acid (C18:1) was negatively correlated with Myristic (C14:0), Palmitic (C16:0), and Palmitoleic (C16:1) acids (P<0.001).
Collapse
Affiliation(s)
- S H Yeon
- National Institute of Animal Science, Pyeongchang, Republic of Korea
| | | | | | | | | | | | | | | | | |
Collapse
|
46
|
Neuropeptide Y potentiates beta-adrenergic stimulation of lipolysis in 3T3-L1 adipocytes. ACTA ACUST UNITED AC 2012; 178:16-20. [DOI: 10.1016/j.regpep.2012.06.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2011] [Revised: 05/25/2012] [Accepted: 06/20/2012] [Indexed: 01/08/2023]
|
47
|
Lyahyai J, Mediano DR, Ranera B, Sanz A, Remacha AR, Bolea R, Zaragoza P, Rodellar C, Martín-Burriel I. Isolation and characterization of ovine mesenchymal stem cells derived from peripheral blood. BMC Vet Res 2012; 8:169. [PMID: 22999337 PMCID: PMC3514285 DOI: 10.1186/1746-6148-8-169] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2012] [Accepted: 09/17/2012] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Mesenchymal stem cells (MSCs) are multipotent stem cells with capacity to differentiate into several mesenchymal lineages. This quality makes MSCs good candidates for use in cell therapy. MSCs can be isolated from a variety of tissues including bone marrow and adipose tissue, which are the most common sources of these cells. However, MSCs can also be isolated from peripheral blood. Sheep has been proposed as an ideal model for biomedical studies including those of orthopaedics and transmissible spongiform encephalopathies (TSEs). The aim of this work was to advance these studies by investigating the possibility of MSC isolation from ovine peripheral blood (oPB-MSCs) and by subsequently characterizing there in vitro properties. RESULTS Plastic-adherent fibroblast-like cells were obtained from the mononuclear fraction of blood samples. These cells were analysed for their proliferative and differentiation potential into adipocytes, osteoblasts and chondrocytes, as well as for the gene expression of cell surface markers. The isolated cells expressed transcripts for markers CD29, CD73 and CD90, but failed to express the haematopoietic marker CD45 and expressed only low levels of CD105. The expression of CD34 was variable. The differentiation potential of this cell population was evaluated using specific differentiation media. Although the ability of the cultures derived from different animals to differentiate into adipocytes, osteoblasts and chondrocytes was heterogeneous, we confirmed this feature using specific staining and analysing the gene expression of differentiation markers. Finally, we tested the ability of oPB-MSCs to transdifferentiate into neuronal-like cells. Morphological changes were observed after 24-hour culture in neurogenic media, and the transcript levels of the neurogenic markers increased during the prolonged induction period. Moreover, oPB-MSCs expressed the cellular prion protein gene (PRNP), which was up-regulated during neurogenesis. CONCLUSIONS This study describes for the first time the isolation and characterization of oPB-MSCs. Albeit some variability was observed between animals, these cells retained their capacity to differentiate into mesenchymal lineages and to transdifferentiate into neuron-like cells in vitro. Therefore, oPB-MSCs could serve as a valuable tool for biomedical research in fields including orthopaedics or prion diseases.
Collapse
Affiliation(s)
- Jaber Lyahyai
- Laboratorio de Genética Bioquímica (LAGENBIO), Facultad de Veterinaria, Universidad de Zaragoza, Miguel Servet 177, Zaragoza, 50013, Spain
| | | | | | | | | | | | | | | | | |
Collapse
|
48
|
Tranchida F, Tchiakpe L, Rakotoniaina Z, Deyris V, Ravion O, Hiol A. Long-term high fructose and saturated fat diet affects plasma fatty acid profile in rats. J Zhejiang Univ Sci B 2012; 13:307-17. [PMID: 22467372 DOI: 10.1631/jzus.b1100090] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
As the consumption of fructose and saturated fatty acids (FAs) has greatly increased in western diets and is linked with an increased risk of metabolic syndrome, the aim of this study was to investigate the effects of a moderate (10 weeks) and a prolonged (30 weeks) high fructose and saturated fatty acid (HFS) diet on plasma FA composition in rats. The effects of a few weeks of HFS diet had already been described, but in this paper we tried to establish whether these effects persist or if they are modified after 10 or 30 weeks. We hypothesized that the plasma FA profile would be altered between 10 and 30 weeks of the HFS diet. Rats fed with either the HFS or a standard diet were tested after 10 weeks and again after 30 weeks. After 10 weeks of feeding, HFS-fed rats developed the metabolic syndrome, as manifested by an increase in fasting insulinemia, total cholesterol and triglyceride levels, as well as by impaired glucose tolerance. Furthermore, the plasma FA profile of the HFS group showed higher proportions of monounsaturated FAs like palmitoleic acid [16:1(n-7)] and oleic acid [18:1(n-9)], whereas the proportions of some polyunsaturated n-6 FAs, such as linoleic acid [18:2(n-6)] and arachidonic acid [20:4(n-6)], were lower than those in the control group. After 30 weeks of the HFS diet, we observed changes mainly in the levels of 16:1(n-7) (decreased) and 20:4(n-6) (increased). Together, our results suggest that an HFS diet could lead to an adaptive response of the plasma FA profile over time, in association with the development of the metabolic syndrome.
Collapse
Affiliation(s)
- Fabrice Tranchida
- Institute of Molecular Sciences of Marseilles, iSm2 UMR 7313, CNRS, Aix-Marseille University, 13397 Marseilles Cedex 20, France
| | | | | | | | | | | |
Collapse
|
49
|
Scd1 plays a tumor-suppressive role in survival of leukemia stem cells and the development of chronic myeloid leukemia. Mol Cell Biol 2012; 32:1776-87. [PMID: 22431519 DOI: 10.1128/mcb.05672-11] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Chronic myeloid leukemia (CML) is derived from a stem cell, and it is widely accepted that the existence of leukemia stem cells (LSCs) is one of the major reasons for the relapse of CML treated with kinase inhibitors. Key to eradicating LSCs is to identify genes that play a critical role in survival regulation of these stem cells. Using BCR-ABL-induced CML mouse model, here we show that expression of the stearoyl-CoA desaturase 1 (Scd1) gene is downregulated in LSCs and that Scd1 plays a tumor-suppressive role in LSCs with no effect on the function of normal hematopoietic stem cells. Deletion of Scd1 causes acceleration of CML development and conversely overexpression of Scd1 delays CML development. In addition, using genetic approaches, we show that Pten, p53, and Bcl2 are regulated by Scd1 in LSCs. Furthermore, we find that induction of Scd1 expression by a PPARγ agonist suppresses LSCs and delays CML development. Our results demonstrate a critical role for Scd1 in functional regulation of LSCs, providing a new anti-LSC strategy through enhancing Scd1 activity.
Collapse
|
50
|
MANNEN H. Genes Associated with Fatty Acid Composition of Beef. FOOD SCIENCE AND TECHNOLOGY RESEARCH 2012. [DOI: 10.3136/fstr.18.1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|