1
|
Zhang X, Li A, Zhu Y, Liu F, Zhao D, Tang H, Xu C. Effect of stearoyl-coenzyme a desaturase 1 (SCD1) on the function of mast cells. J Asthma 2024; 61:707-716. [PMID: 38315158 DOI: 10.1080/02770903.2024.2303749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Accepted: 01/07/2024] [Indexed: 02/07/2024]
Abstract
Background: The prevalence of childhood asthma and obesity is increasing, while obesity increases the risk and severity of asthma. Lipid metabolism has been considered as an important factor in the pathogenesis of obesity-associated asthma. Stearoyl-CoA desaturase 1 (SCD1) is a rate-limiting enzyme that catalyzes the production of monounsaturated fatty acids (MUFA).Methods: In the present study, the microarray data retrieved from the Gene Expression Comprehensive Database (GEO) was analyzed to further clarify the impact of SCD1 on Mast cell activation related lipid mediators and the correlation between SCD1 and obesity asthma in the population.Results: SCD1 was highly expressed in IgE-activated bone marrow-derived mast cells (BMMCs). Meanwhile, SCD1 was also verified expressed highly in dinitrophenyl human serum albumin (DNP-HAS) stimulated RBL-2H3 cells. The expression of SCD1 was up-regulated in peripheral blood leukocytes of asthmatic children, and was positively correlated with skinfold thickness of upper arm, abdominal skinfold and body mass index (BMI). Inhibition of SCD1 expression significantly suppressed the degranulation, lipid mediator production, as well as the migration ability in DNP-HAS-stimulated RBL-2H3 cells.Conclusion: SCD1 is involved in obese-related asthma through regulating mast cells.
Collapse
Affiliation(s)
- Xiuqing Zhang
- Department of Respiratory Medicine, Children's Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
- Department of Respiratory Medicine, Tianjin Children's Hospital, Tianjin, China
| | - Aiguo Li
- Department of Pediatrics, Tong Ren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yifan Zhu
- Department of Respiratory Medicine, Children's Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Feng Liu
- Department of Respiratory Medicine, Children's Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Deyu Zhao
- Department of Respiratory Medicine, Children's Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Heng Tang
- Department of Respiratory Medicine, Children's Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Changdi Xu
- Department of Respiratory Medicine, Children's Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| |
Collapse
|
2
|
Zulqarnain F, Zhao X, Setchell KD, Sharma Y, Fernandes P, Srivastava S, Shrivastava A, Ehsan L, Jain V, Raghavan S, Moskaluk C, Haberman Y, Denson LA, Mehta K, Iqbal NT, Rahman N, Sadiq K, Ahmad Z, Idress R, Iqbal J, Ahmed S, Hotwani A, Umrani F, Amadi B, Kelly P, Brown DE, Moore SR, Ali SA, Syed S. Machine-learning-based integrative -'omics analyses reveal immunologic and metabolic dysregulation in environmental enteric dysfunction. iScience 2024; 27:110013. [PMID: 38868190 PMCID: PMC11167436 DOI: 10.1016/j.isci.2024.110013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 02/18/2024] [Accepted: 05/14/2024] [Indexed: 06/14/2024] Open
Abstract
Environmental enteric dysfunction (EED) is a subclinical enteropathy challenging to diagnose due to an overlap of tissue features with other inflammatory enteropathies. EED subjects (n = 52) from Pakistan, controls (n = 25), and a validation EED cohort (n = 30) from Zambia were used to develop a machine-learning-based image analysis classification model. We extracted histologic feature representations from the Pakistan EED model and correlated them to transcriptomics and clinical biomarkers. In-silico metabolic network modeling was used to characterize alterations in metabolic flux between EED and controls and validated using untargeted lipidomics. Genes encoding beta-ureidopropionase, CYP4F3, and epoxide hydrolase 1 correlated to numerous tissue feature representations. Fatty acid and glycerophospholipid metabolism-related reactions showed altered flux. Increased phosphatidylcholine, lysophosphatidylcholine (LPC), and ether-linked LPCs, and decreased ester-linked LPCs were observed in the duodenal lipidome of Pakistan EED subjects, while plasma levels of glycine-conjugated bile acids were significantly increased. Together, these findings elucidate a multi-omic signature of EED.
Collapse
Affiliation(s)
| | - Xueheng Zhao
- Cincinnati Children’s Hospital Medical Center, University of Cincinnati School of Medicine, Cincinnati, OH, USA
| | - Kenneth D.R. Setchell
- Cincinnati Children’s Hospital Medical Center, University of Cincinnati School of Medicine, Cincinnati, OH, USA
| | - Yash Sharma
- University of Virginia, Charlottesville, VA, USA
| | | | | | | | | | - Varun Jain
- University of Virginia, Charlottesville, VA, USA
| | | | | | - Yael Haberman
- Cincinnati Children’s Hospital Medical Center, University of Cincinnati School of Medicine, Cincinnati, OH, USA
| | - Lee A. Denson
- Cincinnati Children’s Hospital Medical Center, University of Cincinnati School of Medicine, Cincinnati, OH, USA
| | - Khyati Mehta
- Cincinnati Children’s Hospital Medical Center, University of Cincinnati School of Medicine, Cincinnati, OH, USA
| | | | | | | | | | | | | | | | | | | | | | - Paul Kelly
- University Teaching Hospital, Lusaka, Zambia
- Queen Mary University of London, London, UK
| | | | | | | | - Sana Syed
- University of Virginia, Charlottesville, VA, USA
- Aga Khan University, Karachi, Pakistan
| |
Collapse
|
3
|
Bielawiec P, Dziemitko S, Konstantynowicz-Nowicka K, Sztolsztener K, Chabowski A, Harasim-Symbor E. Cannabigerol-A useful agent restoring the muscular phospholipids milieu in obese and insulin-resistant Wistar rats? Front Mol Biosci 2024; 11:1401558. [PMID: 38919749 PMCID: PMC11196617 DOI: 10.3389/fmolb.2024.1401558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Accepted: 05/27/2024] [Indexed: 06/27/2024] Open
Abstract
Numerous strategies have been proposed to minimize obesity-associated health effects, among which phytocannabinoids appear to be effective and safe compounds. In particular, cannabigerol (CBG) emerges as a potent modulator of the composition of membrane phospholipids (PLs), which plays a critical role in the development of insulin resistance. Therefore, here we consider the role of CBG treatment on the composition of PLs fraction with particular emphasis on phospholipid subclasses (e.g., phosphatidylcholine (PC), phosphatidylethanolamine (PE), phosphatidylserine (PS), and phosphatidylinositol (PI)) in the red gastrocnemius muscle of Wistar rats fed the standard or high-fat, high-sucrose (HFHS) diet. The intramuscular PLs content was determined by gas-liquid chromatography and based on the composition of individual FAs, we assessed the stearoyl-CoA desaturase 1 (SCD1) index as well as the activity of n-3 and n-6 polyunsaturated fatty acids (PUFAs) pathways. Expression of various proteins engaged in the inflammatory pathway, FAs elongation, and desaturation processes was measured using Western blotting. Our research has demonstrated the important association of obesity with alterations in the composition of muscular PLs, which was significantly improved by CBG supplementation, enriching the lipid pools in n-3 PUFAs and decreasing the content of arachidonic acid (AA), which in turn influenced the activity of PUFAs pathways in various PLs subclasses. CBG also inhibited the local inflammation development and profoundly reduced the SCD1 activity. Collectively, restoring the PLs homeostasis of the myocyte membrane by CBG indicates its new potential medical application in the treatment of obesity-related metabolic disorders.
Collapse
Affiliation(s)
- Patrycja Bielawiec
- Department of Physiology, Medical University of Bialystok, Bialystok, Poland
| | | | | | | | | | | |
Collapse
|
4
|
Duft RG, Bonfante ILP, Palma-Duran SA, Chacon-Mikahil MPT, Griffin JL, Cavaglieri CR. Moderate-Intensity Combined Training Induces Lipidomic Changes in Individuals with Obesity and Type 2 Diabetes. J Clin Endocrinol Metab 2024:dgae177. [PMID: 38488044 DOI: 10.1210/clinem/dgae177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 02/19/2024] [Accepted: 03/13/2024] [Indexed: 06/01/2024]
Abstract
CONTEXT Alterations in the lipid metabolism are linked to metabolic disorders such as insulin resistance (IR), obesity and type 2 diabetes (T2D). Regular exercise, particularly combined training (CT), is a well-known non-pharmacological treatment that combines aerobic (AT) and resistance (RT) training benefits. However, it is unclear whether moderate-intensity exercise without dietary intervention induces changes in lipid metabolism to promote a 'healthy lipidome'. OBJECTIVE The study aimed to investigate the effect of 16 weeks of CT on plasma and white adipose tissue in both sexes, middle-aged subjects with normal weight, obesity and T2D using an ultra-high performance liquid chromatography-mass spectrometry (UHPLC-MS) untargeted lipidomics approach. METHODS Body composition, maximum oxygen consumption (VO2 max), strength, and biochemical markers were evaluated before and after the control/training period and correlated with lipid changes. CT consisted of 8 to 10 RT exercises, followed by 35 min of AT (45 -70% VO2 max), 3 times a week for 16 weeks. RESULTS The CT significantly reduced the levels of saturated and monounsaturated fatty acid side-chains (SFA/MUFA) in sphingolipids, glycerolipids (GL) and glycerophospholipids (GP) as well as reducing fat mass, circumferences and IR. Increased levels of polyunsaturated fatty acids in GPs, and GLs were also observed, along with increased fat-free mass, VO2 max, and strength (all p < 0.05) after training. CONCLUSION Our study stated that 16 weeks of moderate-intensity CT remodelled the lipid metabolism in OB, and T2D individuals, even without dietary intervention, establishing a link between exercise-modulated lipid markers and mechanisms that reduce IR and obesity-related comorbidities.
Collapse
Affiliation(s)
- Renata Garbellini Duft
- Department of Metabolism, Digestion & Reproduction, Imperial College London, South Kensington Campus, London SW7 2AZ, UK
- Laboratory of Exercise Physiology, Faculty of Physical Education, University of Campinas, Av. Érico Veríssimo, 701 - Barão Geraldo, Campinas - SP, 13083-851, São Paulo, Brazil
- The Rowett Institute of Nutrition and Health, University of Aberdeen, Ashgrove Rd W, Aberdeen AB25 2ZD, UK
| | - Ivan Luiz Padilha Bonfante
- Laboratory of Exercise Physiology, Faculty of Physical Education, University of Campinas, Av. Érico Veríssimo, 701 - Barão Geraldo, Campinas - SP, 13083-851, São Paulo, Brazil
| | - Susana Alejandra Palma-Duran
- Department of Metabolism, Digestion & Reproduction, Imperial College London, South Kensington Campus, London SW7 2AZ, UK
- Department of Food Science, Research Centre in Food and Development A.C., Hermosillo, 83304, Mexico
| | - Mara Patrícia Traina Chacon-Mikahil
- Laboratory of Exercise Physiology, Faculty of Physical Education, University of Campinas, Av. Érico Veríssimo, 701 - Barão Geraldo, Campinas - SP, 13083-851, São Paulo, Brazil
| | - Julian Leether Griffin
- Department of Metabolism, Digestion & Reproduction, Imperial College London, South Kensington Campus, London SW7 2AZ, UK
- The Rowett Institute of Nutrition and Health, University of Aberdeen, Ashgrove Rd W, Aberdeen AB25 2ZD, UK
| | - Cláudia Regina Cavaglieri
- Laboratory of Exercise Physiology, Faculty of Physical Education, University of Campinas, Av. Érico Veríssimo, 701 - Barão Geraldo, Campinas - SP, 13083-851, São Paulo, Brazil
| |
Collapse
|
5
|
Fox BW, Helf MJ, Burkhardt RN, Artyukhin AB, Curtis BJ, Palomino DF, Schroeder AF, Chaturbedi A, Tauffenberger A, Wrobel CJJ, Zhang YK, Lee SS, Schroeder FC. Evolutionarily related host and microbial pathways regulate fat desaturation in C. elegans. Nat Commun 2024; 15:1520. [PMID: 38374083 PMCID: PMC10876521 DOI: 10.1038/s41467-024-45782-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Accepted: 01/31/2024] [Indexed: 02/21/2024] Open
Abstract
Fatty acid desaturation is central to metazoan lipid metabolism and provides building blocks of membrane lipids and precursors of diverse signaling molecules. Nutritional conditions and associated microbiota regulate desaturase expression, but the underlying mechanisms have remained unclear. Here, we show that endogenous and microbiota-dependent small molecule signals promote lipid desaturation via the nuclear receptor NHR-49/PPARα in C. elegans. Untargeted metabolomics of a β-oxidation mutant, acdh-11, in which expression of the stearoyl-CoA desaturase FAT-7/SCD1 is constitutively increased, revealed accumulation of a β-cyclopropyl fatty acid, becyp#1, that potently activates fat-7 expression via NHR-49. Biosynthesis of becyp#1 is strictly dependent on expression of cyclopropane synthase by associated bacteria, e.g., E. coli. Screening for structurally related endogenous metabolites revealed a β-methyl fatty acid, bemeth#1, which mimics the activity of microbiota-dependent becyp#1 but is derived from a methyltransferase, fcmt-1, that is conserved across Nematoda and likely originates from bacterial cyclopropane synthase via ancient horizontal gene transfer. Activation of fat-7 expression by these structurally similar metabolites is controlled by distinct mechanisms, as microbiota-dependent becyp#1 is metabolized by a dedicated β-oxidation pathway, while the endogenous bemeth#1 is metabolized via α-oxidation. Collectively, we demonstrate that evolutionarily related biosynthetic pathways in metazoan host and associated microbiota converge on NHR-49/PPARα to regulate fat desaturation.
Collapse
Affiliation(s)
- Bennett W Fox
- Boyce Thompson Institute and Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY, 14853, USA
| | - Maximilian J Helf
- Boyce Thompson Institute and Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY, 14853, USA
| | - Russell N Burkhardt
- Boyce Thompson Institute and Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY, 14853, USA
| | - Alexander B Artyukhin
- Chemistry Department, College of Environmental Science and Forestry, State University of New York, Syracuse, NY, 13210, USA
| | - Brian J Curtis
- Boyce Thompson Institute and Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY, 14853, USA
| | - Diana Fajardo Palomino
- Boyce Thompson Institute and Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY, 14853, USA
| | - Allen F Schroeder
- Boyce Thompson Institute and Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY, 14853, USA
| | - Amaresh Chaturbedi
- Department of Molecular Biology and Genetics, Cornell University, Ithaca, NY, 14853, USA
| | - Arnaud Tauffenberger
- Boyce Thompson Institute and Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY, 14853, USA
| | - Chester J J Wrobel
- Boyce Thompson Institute and Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY, 14853, USA
| | - Ying K Zhang
- Boyce Thompson Institute and Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY, 14853, USA
| | - Siu Sylvia Lee
- Department of Molecular Biology and Genetics, Cornell University, Ithaca, NY, 14853, USA
| | - Frank C Schroeder
- Boyce Thompson Institute and Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY, 14853, USA.
| |
Collapse
|
6
|
Miskelly MG, Lindqvist A, Piccinin E, Hamilton A, Cowan E, Nergård BJ, Del Giudice R, Ngara M, Cataldo LR, Kryvokhyzha D, Volkov P, Engelking L, Artner I, Lagerstedt JO, Eliasson L, Ahlqvist E, Moschetta A, Hedenbro J, Wierup N. RNA sequencing unravels novel L cell constituents and mechanisms of GLP-1 secretion in human gastric bypass-operated intestine. Diabetologia 2024; 67:356-370. [PMID: 38032369 PMCID: PMC10789678 DOI: 10.1007/s00125-023-06046-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Accepted: 09/15/2023] [Indexed: 12/01/2023]
Abstract
AIMS/HYPOTHESIS Roux-en-Y gastric bypass surgery (RYGB) frequently results in remission of type 2 diabetes as well as exaggerated secretion of glucagon-like peptide-1 (GLP-1). Here, we assessed RYGB-induced transcriptomic alterations in the small intestine and investigated how they were related to the regulation of GLP-1 production and secretion in vitro and in vivo. METHODS Human jejunal samples taken perisurgically and 1 year post RYGB (n=13) were analysed by RNA-seq. Guided by bioinformatics analysis we targeted four genes involved in cholesterol biosynthesis, which we confirmed to be expressed in human L cells, for potential involvement in GLP-1 regulation using siRNAs in GLUTag and STC-1 cells. Gene expression analyses, GLP-1 secretion measurements, intracellular calcium imaging and RNA-seq were performed in vitro. OGTTs were performed in C57BL/6j and iScd1-/- mice and immunohistochemistry and gene expression analyses were performed ex vivo. RESULTS Gene Ontology (GO) analysis identified cholesterol biosynthesis as being most affected by RYGB. Silencing or chemical inhibition of stearoyl-CoA desaturase 1 (SCD1), a key enzyme in the synthesis of monounsaturated fatty acids, was found to reduce Gcg expression and secretion of GLP-1 by GLUTag and STC-1 cells. Scd1 knockdown also reduced intracellular Ca2+ signalling and membrane depolarisation. Furthermore, Scd1 mRNA expression was found to be regulated by NEFAs but not glucose. RNA-seq of SCD1 inhibitor-treated GLUTag cells identified altered expression of genes implicated in ATP generation and glycolysis. Finally, gene expression and immunohistochemical analysis of the jejunum of the intestine-specific Scd1 knockout mouse model, iScd1-/-, revealed a twofold higher L cell density and a twofold increase in Gcg mRNA expression. CONCLUSIONS/INTERPRETATION RYGB caused robust alterations in the jejunal transcriptome, with genes involved in cholesterol biosynthesis being most affected. Our data highlight SCD as an RYGB-regulated L cell constituent that regulates the production and secretion of GLP-1.
Collapse
Affiliation(s)
- Michael G Miskelly
- Neuroendocrine Cell Biology, Lund University Diabetes Centre, Lund University, Malmö, Sweden
| | - Andreas Lindqvist
- Neuroendocrine Cell Biology, Lund University Diabetes Centre, Lund University, Malmö, Sweden
| | - Elena Piccinin
- Department of Translational Biomedicine and Neuroscience, University of Bari 'Aldo Moro', Bari, Italy
- Department of Interdisciplinary Medicine, University of Bari 'Aldo Moro', Bari, Italy
| | - Alexander Hamilton
- Molecular Metabolism, Lund University Diabetes Centre, Lund University, Malmö, Sweden
- Islet Cell Exocytosis, Lund University Diabetes Centre, Lund University, Malmö, Sweden
| | - Elaine Cowan
- Islet Cell Exocytosis, Lund University Diabetes Centre, Lund University, Malmö, Sweden
| | | | - Rita Del Giudice
- Department of Experimental Medical Science, Lund University, Lund, Sweden
- Department of Biomedical Science and Biofilms - Research Center for Biointerfaces, Malmö University, Malmö, Sweden
| | - Mtakai Ngara
- Neuroendocrine Cell Biology, Lund University Diabetes Centre, Lund University, Malmö, Sweden
| | - Luis R Cataldo
- Molecular Metabolism, Lund University Diabetes Centre, Lund University, Malmö, Sweden
- Novo Nordisk Foundation Centre for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Dmytro Kryvokhyzha
- Bioinformatics Unit, Lund University Diabetes Centre, Lund University, Malmö, Sweden
| | - Petr Volkov
- Bioinformatics Unit, Lund University Diabetes Centre, Lund University, Malmö, Sweden
| | - Luke Engelking
- Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA
- Department of Molecular Genetics, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Isabella Artner
- Endocrine Cell Differentiation and Function, Stem Cell Centre, Lund University, Malmö, Sweden
| | - Jens O Lagerstedt
- Islet Cell Exocytosis, Lund University Diabetes Centre, Lund University, Malmö, Sweden
- Department of Experimental Medical Science, Lund University, Lund, Sweden
| | - Lena Eliasson
- Islet Cell Exocytosis, Lund University Diabetes Centre, Lund University, Malmö, Sweden
| | - Emma Ahlqvist
- Genomics, Diabetes and Endocrinology, Lund University Diabetes Centre, Lund University, Malmö, Sweden
| | - Antonio Moschetta
- Department of Interdisciplinary Medicine, University of Bari 'Aldo Moro', Bari, Italy
- INBB National Institute for Biostructure and Biosystems, Rome, Italy
| | - Jan Hedenbro
- Department of Surgery, Department of Clinical Sciences Lund, Lund University, Lund, Sweden
| | - Nils Wierup
- Neuroendocrine Cell Biology, Lund University Diabetes Centre, Lund University, Malmö, Sweden.
| |
Collapse
|
7
|
Sun Q, Xing X, Wang H, Wan K, Fan R, Liu C, Wang Y, Wu W, Wang Y, Wang R. SCD1 is the critical signaling hub to mediate metabolic diseases: Mechanism and the development of its inhibitors. Biomed Pharmacother 2024; 170:115586. [PMID: 38042113 DOI: 10.1016/j.biopha.2023.115586] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2023] [Revised: 09/23/2023] [Accepted: 09/25/2023] [Indexed: 12/04/2023] Open
Abstract
Metabolic diseases, featured with dysregulated energy homeostasis, have become major global health challenges. Patients with metabolic diseases have high probability to manifest multiple complications in lipid metabolism, e.g. obesity, insulin resistance and fatty liver. Therefore, targeting the hub genes in lipid metabolism may systemically ameliorate the metabolic diseases, along with the complications. Stearoyl-CoA desaturase 1(SCD1) is a key enzyme that desaturates the saturated fatty acids (SFAs) derived from de novo lipogenesis or diet to generate monounsaturated fatty acids (MUFAs). SCD1 maintains the metabolic and tissue homeostasis by responding to, and integrating the multiple layers of endogenous stimuli, which is mediated by the synthesized MUFAs. It critically regulates a myriad of physiological processes, including energy homeostasis, development, autophagy, tumorigenesis and inflammation. Aberrant transcriptional and epigenetic activation of SCD1 regulates AMPK/ACC, SIRT1/PGC1α, NcDase/Wnt, etc, and causes aberrant lipid accumulation, thereby promoting the progression of obesity, non-alcoholic fatty liver, diabetes and cancer. This review critically assesses the integrative mechanisms of the (patho)physiological functions of SCD1 in metabolic homeostasis, inflammation and autophagy. For translational perspective, potent SCD1 inhibitors have been developed to treat various types of cancer. We thus discuss the multidisciplinary advances that greatly accelerate the development of SCD1 new inhibitors. In conclusion, besides cancer treatment, SCD1 may serve as the promising target to combat multiple metabolic complications simultaneously.
Collapse
Affiliation(s)
- Qin Sun
- School of Kinesiology, Shanghai University of Sport, Shanghai 200438, China
| | - Xiaorui Xing
- School of Kinesiology, Shanghai University of Sport, Shanghai 200438, China
| | - Huanyu Wang
- School of Kinesiology, Shanghai University of Sport, Shanghai 200438, China
| | - Kang Wan
- School of Kinesiology, Shanghai University of Sport, Shanghai 200438, China
| | - Ruobing Fan
- School of Kinesiology, Shanghai University of Sport, Shanghai 200438, China
| | - Cheng Liu
- School of Kinesiology, Shanghai University of Sport, Shanghai 200438, China
| | - Yongjian Wang
- School of Kinesiology, Shanghai University of Sport, Shanghai 200438, China
| | - Wenyi Wu
- School of Kinesiology, Shanghai University of Sport, Shanghai 200438, China
| | - Yibing Wang
- School of Kinesiology, Shanghai University of Sport, Shanghai 200438, China.
| | - Ru Wang
- School of Kinesiology, Shanghai University of Sport, Shanghai 200438, China.
| |
Collapse
|
8
|
Kaupper CS, Blaauwendraad SM, Cecil CAM, Mulder RH, Gaillard R, Goncalves R, Borggraefe I, Koletzko B, Jaddoe VWV. Cord Blood Metabolite Profiles and Their Association with Autistic Traits in Childhood. Metabolites 2023; 13:1140. [PMID: 37999236 PMCID: PMC10672851 DOI: 10.3390/metabo13111140] [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: 09/28/2023] [Revised: 11/02/2023] [Accepted: 11/03/2023] [Indexed: 11/25/2023] Open
Abstract
Autism Spectrum Disorder (ASD) is a diverse neurodevelopmental condition. Gene-environmental interactions in early stages of life might alter metabolic pathways, possibly contributing to ASD pathophysiology. Metabolomics may serve as a tool to identify underlying metabolic mechanisms contributing to ASD phenotype and could help to unravel its complex etiology. In a population-based, prospective cohort study among 783 mother-child pairs, cord blood serum concentrations of amino acids, non-esterified fatty acids, phospholipids, and carnitines were obtained using liquid chromatography coupled with tandem mass spectrometry. Autistic traits were measured at the children's ages of 6 (n = 716) and 13 (n = 648) years using the parent-reported Social Responsiveness Scale. Lower cord blood concentrations of SM.C.39.2 and NEFA16:1/16:0 were associated with higher autistic traits among 6-year-old children, adjusted for sex and age at outcome. After more stringent adjustment for confounders, no significant associations of cord blood metabolites and autistic traits at ages 6 and 13 were detected. Differences in lipid metabolism (SM and NEFA) might be involved in ASD-related pathways and are worth further investigation.
Collapse
Affiliation(s)
- Christin S. Kaupper
- The Generation R Study Group, Erasmus MC, University Medical Center Rotterdam, 3000 CA Rotterdam, The Netherlands (R.G.)
- Department of Pediatrics, Sophia’s Children’s Hospital, Erasmus MC, University Medical Center Rotterdam, 3000 CA Rotterdam, The Netherlands
| | - Sophia M. Blaauwendraad
- The Generation R Study Group, Erasmus MC, University Medical Center Rotterdam, 3000 CA Rotterdam, The Netherlands (R.G.)
- Department of Pediatrics, Sophia’s Children’s Hospital, Erasmus MC, University Medical Center Rotterdam, 3000 CA Rotterdam, The Netherlands
| | - Charlotte A. M. Cecil
- Department of Child and Adolescent Psychiatry, Erasmus MC, University Medical Center Rotterdam, 3000 CA Rotterdam, The Netherlands
- Department of Epidemiology, Erasmus MC, 3000 CA Rotterdam, The Netherlands
- Molecular Epidemiology, Department of Biomedical Data Sciences, Leiden University Medical Center, 2333 ZC Leiden, The Netherlands
| | - Rosa H. Mulder
- The Generation R Study Group, Erasmus MC, University Medical Center Rotterdam, 3000 CA Rotterdam, The Netherlands (R.G.)
- Department of Child and Adolescent Psychiatry, Erasmus MC, University Medical Center Rotterdam, 3000 CA Rotterdam, The Netherlands
| | - Romy Gaillard
- The Generation R Study Group, Erasmus MC, University Medical Center Rotterdam, 3000 CA Rotterdam, The Netherlands (R.G.)
- Department of Pediatrics, Sophia’s Children’s Hospital, Erasmus MC, University Medical Center Rotterdam, 3000 CA Rotterdam, The Netherlands
| | - Romy Goncalves
- The Generation R Study Group, Erasmus MC, University Medical Center Rotterdam, 3000 CA Rotterdam, The Netherlands (R.G.)
- Department of Pediatrics, Sophia’s Children’s Hospital, Erasmus MC, University Medical Center Rotterdam, 3000 CA Rotterdam, The Netherlands
| | - Ingo Borggraefe
- Division of Pediatric Neurology, Developmental Medicine and Social Pediatrics, Comprehensive Epilepsy Center for Children and Adolescents, Dr. von Hauner Children’s Hospital, LMU University Hospitals, LMU—Ludwig-Maximilians Universität, 80337 Munich, Germany
| | - Berthold Koletzko
- Division of Metabolic and Nutritional Medicine, Department of Pediatrics, Dr. von Hauner Children’s Hospital, LMU University Hospitals, LMU—Ludwig-Maximilians Universität, 80337 Munich, Germany
| | - Vincent W. V. Jaddoe
- The Generation R Study Group, Erasmus MC, University Medical Center Rotterdam, 3000 CA Rotterdam, The Netherlands (R.G.)
- Department of Pediatrics, Sophia’s Children’s Hospital, Erasmus MC, University Medical Center Rotterdam, 3000 CA Rotterdam, The Netherlands
| |
Collapse
|
9
|
Ali O, Szabó A. Review of Eukaryote Cellular Membrane Lipid Composition, with Special Attention to the Fatty Acids. Int J Mol Sci 2023; 24:15693. [PMID: 37958678 PMCID: PMC10649022 DOI: 10.3390/ijms242115693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 10/24/2023] [Accepted: 10/25/2023] [Indexed: 11/15/2023] Open
Abstract
Biological membranes, primarily composed of lipids, envelop each living cell. The intricate composition and organization of membrane lipids, including the variety of fatty acids they encompass, serve a dynamic role in sustaining cellular structural integrity and functionality. Typically, modifications in lipid composition coincide with consequential alterations in universally significant signaling pathways. Exploring the various fatty acids, which serve as the foundational building blocks of membrane lipids, provides crucial insights into the underlying mechanisms governing a myriad of cellular processes, such as membrane fluidity, protein trafficking, signal transduction, intercellular communication, and the etiology of certain metabolic disorders. Furthermore, comprehending how alterations in the lipid composition, especially concerning the fatty acid profile, either contribute to or prevent the onset of pathological conditions stands as a compelling area of research. Hence, this review aims to meticulously introduce the intricacies of membrane lipids and their constituent fatty acids in a healthy organism, thereby illuminating their remarkable diversity and profound influence on cellular function. Furthermore, this review aspires to highlight some potential therapeutic targets for various pathological conditions that may be ameliorated through dietary fatty acid supplements. The initial section of this review expounds on the eukaryotic biomembranes and their complex lipids. Subsequent sections provide insights into the synthesis, membrane incorporation, and distribution of fatty acids across various fractions of membrane lipids. The last section highlights the functional significance of membrane-associated fatty acids and their innate capacity to shape the various cellular physiological responses.
Collapse
Affiliation(s)
- Omeralfaroug Ali
- Agrobiotechnology and Precision Breeding for Food Security National Laboratory, Institute of Physiology and Animal Nutrition, Department of Animal Physiology and Health, Hungarian University of Agriculture and Life Sciences, Guba Sándor Str. 40, 7400 Kaposvár, Hungary;
| | - András Szabó
- Agrobiotechnology and Precision Breeding for Food Security National Laboratory, Institute of Physiology and Animal Nutrition, Department of Animal Physiology and Health, Hungarian University of Agriculture and Life Sciences, Guba Sándor Str. 40, 7400 Kaposvár, Hungary;
- HUN-REN-MATE Mycotoxins in the Food Chain Research Group, Hungarian University of Agriculture and Life Sciences, Guba Sándor Str. 40, 7400 Kaposvár, Hungary
| |
Collapse
|
10
|
Scavo MP, Negro R, Arrè V, Depalo N, Carrieri L, Rizzi F, Mastrogiacomo R, Serino G, Notarnicola M, De Nunzio V, Lippolis T, Pesole PL, Coletta S, Armentano R, Curri ML, Giannelli G. The oleic/palmitic acid imbalance in exosomes isolated from NAFLD patients induces necroptosis of liver cells via the elongase-6/RIP-1 pathway. Cell Death Dis 2023; 14:635. [PMID: 37752143 PMCID: PMC10522611 DOI: 10.1038/s41419-023-06161-9] [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: 05/30/2023] [Revised: 09/06/2023] [Accepted: 09/15/2023] [Indexed: 09/28/2023]
Abstract
Excessive toxic lipid accumulation in hepatocytes underlies the development of non-alcoholic fatty liver disease (NAFLD), phenotypically characterized by necrosis and steato-fibrosis, whose molecular mechanism is not yet fully understood. Patients with NAFLD display an imbalanced palmitic (PA) to oleic acid (OA) ratio. Moreover, increasing experimental evidence points out a relevant involvement of the exosomal content in disease progression. Aim of the study was to highlight the PA/OA imbalance within circulating exosomes, the subsequent intracellular alterations, and the impact on NALFD. Liver cells were challenged with exosomes isolated from both healthy subjects and NAFLD patients. The exosomal PA/OA ratio was artificially modified, and biological effects were evaluated. A NAFLD-derived exosomal PA/OA imbalance impacts liver cell cycle and cell viability. OA-modified NAFLD-derived exosomes restored cellular viability and proliferation, whereas the inclusion of PA into healthy subjects-derived exosomes negatively affected cell viability. Moreover, while OA reduced the phosphorylation and activation of the necroptosis marker, Receptor-interacting protein 1 (phospho-RIP-1), PA induced the opposite outcome, alongside increased levels of stress fibers, such as vimentin and fibronectin. Administration of NAFLD-derived exosomes led to increased expression of Elongase 6 (ELOVL6), Stearoyl-CoA desaturase 1 (SCD1), Tumor necrosis factor α (TNF-α), Mixed-lineage-kinase-domain-like-protein (MLKL) and RIP-1 in the hepatocytes, comparable to mRNA levels in the hepatocytes of NAFLD patients reported in the Gene Expression Omnibus (GEO) database. Genetic and pharmacological abrogation of ELOVL6 elicited a reduced expression of downstream molecules TNF-α, phospho-RIP-1, and phospho-MLKL upon administration of NAFLD-derived exosomes. Lastly, mice fed with high-fat diet exhibited higher phospho-RIP-1 than mice fed with control diet. Targeting the Elongase 6-RIP-1 signaling pathway offers a novel therapeutic approach for the treatment of the NALFD-induced exosomal PA/OA imbalance.
Collapse
Affiliation(s)
- Maria Principia Scavo
- Personalized Medicine Laboratory, National Institute of Gastroenterology "S. de Bellis", IRCCS Research Hospital, Via Turi 27, Castellana Grotte, 70013, Bari, Italy.
| | - Roberto Negro
- Personalized Medicine Laboratory, National Institute of Gastroenterology "S. de Bellis", IRCCS Research Hospital, Via Turi 27, Castellana Grotte, 70013, Bari, Italy.
| | - Valentina Arrè
- Personalized Medicine Laboratory, National Institute of Gastroenterology "S. de Bellis", IRCCS Research Hospital, Via Turi 27, Castellana Grotte, 70013, Bari, Italy
| | - Nicoletta Depalo
- Institute for Chemical-Physical Processes (IPCF)-CNR SS Bari, Via Orabona 4, 70125, Bari, Italy
| | - Livianna Carrieri
- Personalized Medicine Laboratory, National Institute of Gastroenterology "S. de Bellis", IRCCS Research Hospital, Via Turi 27, Castellana Grotte, 70013, Bari, Italy
| | - Federica Rizzi
- Institute for Chemical-Physical Processes (IPCF)-CNR SS Bari, Via Orabona 4, 70125, Bari, Italy
| | - Rita Mastrogiacomo
- Institute for Chemical-Physical Processes (IPCF)-CNR SS Bari, Via Orabona 4, 70125, Bari, Italy
- Dipartimento di Chimica, Università degli Studi di Bari Aldo Moro, Via Orabona 4, 70125, Bari, Italy
| | - Grazia Serino
- Experimental Immunopathology Laboratory, National Institute of Gastroenterology "S. de Bellis" IRCCS Research Hospital, Via Turi 27, Castellana Grotte, 70013, Bari, Italy
| | - Maria Notarnicola
- Laboratory of Nutritional Biochemistry, National Institute of Gastroenterology "S. de Bellis", IRCCS Research Hospital, Via Turi 27, Castellana Grotte, 70013, Bari, Italy
| | - Valentina De Nunzio
- Laboratory of Nutritional Biochemistry, National Institute of Gastroenterology "S. de Bellis", IRCCS Research Hospital, Via Turi 27, Castellana Grotte, 70013, Bari, Italy
| | - Tamara Lippolis
- Laboratory of Nutritional Biochemistry, National Institute of Gastroenterology "S. de Bellis", IRCCS Research Hospital, Via Turi 27, Castellana Grotte, 70013, Bari, Italy
| | - Pasqua Letizia Pesole
- Department of Pathology, "S. de Bellis" IRCCS Research Hospital, Via Turi 27, Castellana Grotte, 70013, Bari, Italy
| | - Sergio Coletta
- Department of Pathology, "S. de Bellis" IRCCS Research Hospital, Via Turi 27, Castellana Grotte, 70013, Bari, Italy
| | - Raffaele Armentano
- Department of Pathology, "S. de Bellis" IRCCS Research Hospital, Via Turi 27, Castellana Grotte, 70013, Bari, Italy
| | - Maria Lucia Curri
- Institute for Chemical-Physical Processes (IPCF)-CNR SS Bari, Via Orabona 4, 70125, Bari, Italy
- Dipartimento di Chimica, Università degli Studi di Bari Aldo Moro, Via Orabona 4, 70125, Bari, Italy
| | - Gianluigi Giannelli
- Scientific Direction, National Institute of Gastroenterology "S. de Bellis" IRCCS Research Hospital, Via Turi 27, Castellana Grotte, 70013, Bari, Italy
| |
Collapse
|
11
|
Tuo Y, Hu L, Gu W, Yuan X, Wu J, Ma D, Luo D, Zhang X, Li X, Yang S, Yuan H. Identification of Bone Morphometric Protein-Related Hub Genes and Construction of a Transcriptional Regulatory Network in Patients With Ossification of the Ligamentum Flavum. Spine (Phila Pa 1976) 2023; 48:E317-E328. [PMID: 37384872 PMCID: PMC10445621 DOI: 10.1097/brs.0000000000004763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Accepted: 06/06/2023] [Indexed: 07/01/2023]
Abstract
STUDY DESIGN Basic science laboratory study. OBJECTIVE To identify hub genes related to bone morphogenetic proteins (BMPs) in the ossification of the ligamentum flavum (OLF) and analyze their functional characteristics. SUMMARY OF BACKGROUND DATA The exact etiology and pathologic mechanism of OLF remain unclear. BMPs are pleiotropic osteoinductive proteins that may play a critical role in this condition. MATERIALS AND METHODS The GSE106253 and GSE106256 data sets were downloaded from the Gene Expression Omnibus database. The messenger RNA (mRNA) and long noncoding RNA expression profiles were obtained from GSE106253. The microRNA expression profiles were obtained from GSE106256. Differentially expressed genes were identified between OLF and non-OLF groups and then intersected with BMP-related genes to obtain differentially expressed BMP-related genes. The least absolute shrinkage selection operator and support vector machine recursive feature elimination were used to screen hub genes. Furthermore, a competing endogenous RNA network was constructed to explain the expression regulation of the hub genes in OLF. Finally, the protein and mRNA expression levels of the hub genes were verified using Western blot and real-time polymerase chain reaction, respectively. RESULTS We identified 671 Differentially expressed genes and 32 differentially expressed BMP-related genes. Hub genes ADIPOQ , SCD , SCX , RPS18 , WDR82 , and SPON1 , identified through the least absolute shrinkage selection operator and support vector machine recursive feature elimination analyses, showed high diagnostic values for OLF. Furthermore, the competing endogenous RNA network revealed the regulatory mechanisms of the hub genes. Real-time polymerase chain reaction showed that the mRNA expression of the hub genes was significantly downregulated in the OLF group compared with the non-OLF group. Western blot showed that the protein levels of ADIPOQ, SCD, WDR82 , and SPON1 were significantly downregulated, whereas those of SCX and RPS18 were significantly upregulated in the OLF group compared with the non-OLF group. CONCLUSION This study is the first to identify BMP-related genes in OLF pathogenesis through bioinformatics analysis. ADIPOQ , SCD , SCX , RPS18 , WDR82 , and SPON1 were identified as hub genes for OLF. The identified genes may serve as potential therapeutic targets for treating patients with OLF.
Collapse
Affiliation(s)
- Yifan Tuo
- Department of Spine Surgery, General Hospital of Ningxia Medical University, Ningxia, China
- Clinical College of Ningxia Medical University, Ningxia, China
| | - Lihong Hu
- Department of Spine Surgery, General Hospital of Ningxia Medical University, Ningxia, China
| | - Wenbo Gu
- Clinical College of Ningxia Medical University, Ningxia, China
| | - Xiaoya Yuan
- St. Anne’s—Belfield School, Charlottesville, VA
| | - Jide Wu
- Clinical College of Ningxia Medical University, Ningxia, China
| | - Da Ma
- Clinical College of Ningxia Medical University, Ningxia, China
| | - Di Luo
- Clinical College of Ningxia Medical University, Ningxia, China
| | - Xiao Zhang
- Clinical College of Ningxia Medical University, Ningxia, China
| | - Xusheng Li
- Department of Spine Surgery, General Hospital of Ningxia Medical University, Ningxia, China
| | - Shengsen Yang
- Department of Spine Surgery, General Hospital of Ningxia Medical University, Ningxia, China
| | - Haifeng Yuan
- Department of Spine Surgery, General Hospital of Ningxia Medical University, Ningxia, China
| |
Collapse
|
12
|
Fox BW, Helf MJ, Burkhardt RN, Artyukhin AB, Curtis BJ, Palomino DF, Chaturbedi A, Tauffenberger A, Wrobel CJ, Zhang YK, Lee SS, Schroeder FC. Evolutionarily related host and microbial pathways regulate fat desaturation. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.08.31.555782. [PMID: 37693574 PMCID: PMC10491262 DOI: 10.1101/2023.08.31.555782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/12/2023]
Abstract
Fatty acid desaturation is central to metazoan lipid metabolism and provides building blocks of membrane lipids and precursors of diverse signaling molecules. Nutritional conditions and associated microbiota regulate desaturase expression1-4, but the underlying mechanisms have remained unclear. Here, we show that endogenous and microbiota-dependent small molecule signals promote lipid desaturation via the nuclear receptor NHR-49/PPARα in C. elegans. Untargeted metabolomics of a β-oxidation mutant, acdh-11, in which expression of the stearoyl-CoA desaturase FAT-7/SCD1 is constitutively increased, revealed accumulation of a β-cyclopropyl fatty acid, becyp#1, that potently activates fat-7 expression via NHR-49. Biosynthesis of becyp#1 is strictly dependent on expression of cyclopropane synthase by associated bacteria, e.g., E. coli. Screening for structurally related endogenous metabolites revealed a β-methyl fatty acid, bemeth#1, whose activity mimics that of microbiota-dependent becyp#1, but is derived from a methyltransferase, fcmt-1, that is conserved across Nematoda and likely originates from bacterial cyclopropane synthase via ancient horizontal gene transfer. Activation of fat-7 expression by these structurally similar metabolites is controlled by distinct mechanisms, as microbiota-dependent becyp#1 is metabolized by a dedicated β-oxidation pathway, while the endogenous bemeth#1 is metabolized via α-oxidation. Collectively, we demonstrate that evolutionarily related biosynthetic pathways in metazoan host and associated microbiota converge on NHR-49/PPARα to regulate fat desaturation.
Collapse
Affiliation(s)
- Bennett W. Fox
- Boyce Thompson Institute and Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, United States
| | - Maximilian J. Helf
- Boyce Thompson Institute and Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, United States
| | - Russell N. Burkhardt
- Boyce Thompson Institute and Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, United States
| | - Alexander B. Artyukhin
- Chemistry Department, College of Environmental Science and Forestry, State University of New York, Syracuse, New York 13210, United States
| | - Brian J. Curtis
- Boyce Thompson Institute and Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, United States
| | - Diana Fajardo Palomino
- Boyce Thompson Institute and Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, United States
| | - Amaresh Chaturbedi
- Department of Molecular Biology and Genetics, Cornell University, Ithaca, New York 14853, United States
| | - Arnaud Tauffenberger
- Boyce Thompson Institute and Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, United States
| | - Chester J.J. Wrobel
- Boyce Thompson Institute and Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, United States
| | - Ying K. Zhang
- Boyce Thompson Institute and Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, United States
| | - Siu Sylvia Lee
- Department of Molecular Biology and Genetics, Cornell University, Ithaca, New York 14853, United States
| | - Frank C. Schroeder
- Boyce Thompson Institute and Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, United States
| |
Collapse
|
13
|
Battis K, Xiang W, Winkler J. The Bidirectional Interplay of α-Synuclein with Lipids in the Central Nervous System and Its Implications for the Pathogenesis of Parkinson's Disease. Int J Mol Sci 2023; 24:13270. [PMID: 37686080 PMCID: PMC10487772 DOI: 10.3390/ijms241713270] [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: 07/31/2023] [Revised: 08/23/2023] [Accepted: 08/24/2023] [Indexed: 09/10/2023] Open
Abstract
The alteration and aggregation of alpha-synuclein (α-syn) play a crucial role in neurodegenerative diseases collectively termed as synucleinopathies, including Parkinson's disease (PD). The bidirectional interaction of α-syn with lipids and biomembranes impacts not only α-syn aggregation but also lipid homeostasis. Indeed, lipid composition and metabolism are severely perturbed in PD. One explanation for lipid-associated alterations may involve structural changes in α-syn, caused, for example, by missense mutations in the lipid-binding region of α-syn as well as post-translational modifications such as phosphorylation, acetylation, nitration, ubiquitination, truncation, glycosylation, and glycation. Notably, different strategies targeting the α-syn-lipid interaction have been identified and are able to reduce α-syn pathology. These approaches include the modulation of post-translational modifications aiming to reduce the aggregation of α-syn and modify its binding properties to lipid membranes. Furthermore, targeting enzymes involved in various steps of lipid metabolism and exploring the neuroprotective potential of lipids themselves have emerged as novel therapeutic approaches. Taken together, this review focuses on the bidirectional crosstalk of α-syn and lipids and how alterations of this interaction affect PD and thereby open a window for therapeutic interventions.
Collapse
Affiliation(s)
| | | | - Jürgen Winkler
- Department of Molecular Neurology, University Hospital Erlangen, Friedrich-Alexander-University Erlangen-Nürnberg, 91054 Erlangen, Germany; (K.B.); (W.X.)
| |
Collapse
|
14
|
Wu M, Lo TH, Li L, Sun J, Deng C, Chan KY, Li X, Yeh STY, Lee JTH, Lui PPY, Xu A, Wong CM. Amelioration of non-alcoholic fatty liver disease by targeting adhesion G protein-coupled receptor F1 ( Adgrf1). eLife 2023; 12:e85131. [PMID: 37580962 PMCID: PMC10427146 DOI: 10.7554/elife.85131] [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: 11/23/2022] [Accepted: 07/28/2023] [Indexed: 08/16/2023] Open
Abstract
Background Recent research has shown that the adhesion G protein-coupled receptor F1 (Adgrf1; also known as GPR110; PGR19; KPG_012; hGPCR36) is an oncogene. The evidence is mainly based on high expression of Adgrf1 in numerous cancer types, and knockdown Adgrf1 can reduce the cell migration, invasion, and proliferation. Adgrf1 is, however, mostly expressed in the liver of healthy individuals. The function of Adgrf1 in liver has not been revealed. Interestingly, expression level of hepatic Adgrf1 is dramatically decreased in obese subjects. Here, the research examined whether Adgrf1 has a role in liver metabolism. Methods We used recombinant adeno-associated virus-mediated gene delivery system, and antisense oligonucleotide was used to manipulate the hepatic Adgrf1 expression level in diet-induced obese mice to investigate the role of Adgrf1 in hepatic steatosis. The clinical relevance was examined using transcriptome profiling and archived biopsy specimens of liver tissues from non-alcoholic fatty liver disease (NAFLD) patients with different degree of fatty liver. Results The expression of Adgrf1 in the liver was directly correlated to fat content in the livers of both obese mice and NAFLD patients. Stearoyl-coA desaturase 1 (Scd1), a crucial enzyme in hepatic de novo lipogenesis, was identified as a downstream target of Adgrf1 by RNA-sequencing analysis. Treatment with the liver-specific Scd1 inhibitor MK8245 and specific shRNAs against Scd1 in primary hepatocytes improved the hepatic steatosis of Adgrf1-overexpressing mice and lipid profile of hepatocytes, respectively. Conclusions These results indicate Adgrf1 regulates hepatic lipid metabolism through controlling the expression of Scd1. Downregulation of Adgrf1 expression can potentially serve as a protective mechanism to stop the overaccumulation of fat in the liver in obese subjects. Overall, the above findings not only reveal a new mechanism regulating the progression of NAFLD, but also proposed a novel therapeutic approach to combat NAFLD by targeting Adgrf1. Funding This work was supported by the National Natural Science Foundation of China (81870586), Area of Excellence (AoE/M-707/18), and General Research Fund (15101520) to CMW, and the National Natural Science Foundation of China (82270941, 81974117) to SJ.
Collapse
Affiliation(s)
- Mengyao Wu
- Department of Chemistry and Chemical Engineering, Guangzhou UniversityGuangzhouChina
| | - Tak-Ho Lo
- Department of Health Technology and Informatics, Hong Kong Polytechnic UniversityHong KongHong Kong
| | - Liping Li
- Zhujiang Hospital, Southern Medical UniversityChinaChina
| | - Jia Sun
- Zhujiang Hospital, Southern Medical UniversityChinaChina
| | - Chujun Deng
- Department of Health Technology and Informatics, Hong Kong Polytechnic UniversityHong KongHong Kong
| | - Ka-Ying Chan
- Department of Health Technology and Informatics, Hong Kong Polytechnic UniversityHong KongHong Kong
| | - Xiang Li
- Department of Health Technology and Informatics, Hong Kong Polytechnic UniversityHong KongHong Kong
| | | | - Jimmy Tsz Hang Lee
- Department of Medicine, University of Hong KongHong KongHong Kong
- State Key Laboratory of Pharmaceutical Biotechnology, University of Hong KongHong KongChina
| | - Pauline Po Yee Lui
- Department of Orthopaedics and Traumatology, Chinese University of Hong KongHong KongHong Kong
| | - Aimin Xu
- Department of Medicine, University of Hong KongHong KongHong Kong
- State Key Laboratory of Pharmaceutical Biotechnology, University of Hong KongHong KongChina
| | - Chi-Ming Wong
- Department of Health Technology and Informatics, Hong Kong Polytechnic UniversityHong KongHong Kong
- State Key Laboratory of Pharmaceutical Biotechnology, University of Hong KongHong KongChina
- Hong Kong Polytechnic University, Shenzhen Research InstituteHong KongChina
| |
Collapse
|
15
|
Sen U, Coleman C, Sen T. Stearoyl coenzyme A desaturase-1: multitasker in cancer, metabolism, and ferroptosis. Trends Cancer 2023; 9:480-489. [PMID: 37029018 DOI: 10.1016/j.trecan.2023.03.003] [Citation(s) in RCA: 36] [Impact Index Per Article: 36.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 03/03/2023] [Accepted: 03/07/2023] [Indexed: 04/09/2023]
Abstract
Cancer progression is a highly balanced process and is maintained by a sequence of finely tuned metabolic pathways. Stearoyl coenzyme A desaturase-1 (SCD1), the fatty enzyme that converts saturated fatty acids into monounsaturated fatty acids, is a critical modulator of the fatty acid metabolic pathway. SCD1 expression is associated with poor prognosis in several cancer types. SCD1 triggers an iron-dependent cell death called ferroptosis and elevated levels of SCD1 protect cancer cells against ferroptosis. Pharmacological inhibition of SCD1 as monotherapy and in combination with chemotherapeutic agents shows promising antitumor potential in preclinical models. In this review, we summarize the role of SCD in cancer cell progression, survival, and ferroptosis and discuss potential strategies to exploit SCD1 inhibition in future clinical trials.
Collapse
Affiliation(s)
- Utsav Sen
- Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Charles Coleman
- The Bioinformatics for Next Generation Sequencing (BiNGS) Core, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; Tisch Cancer Institute, Mount Sinai, New York, NY 10029, USA
| | - Triparna Sen
- Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; Tisch Cancer Institute, Mount Sinai, New York, NY 10029, USA.
| |
Collapse
|
16
|
Csader S, Ismaiah MJ, Kuningas T, Heinäniemi M, Suhonen J, Männistö V, Pentikäinen H, Savonen K, Tauriainen MM, Galano JM, Lee JCY, Rintamäki R, Karisola P, El-Nezami H, Schwab U. Twelve Weeks of High-Intensity Interval Training Alters Adipose Tissue Gene Expression but Not Oxylipin Levels in People with Non-Alcoholic Fatty Liver Disease. Int J Mol Sci 2023; 24:ijms24108509. [PMID: 37239856 DOI: 10.3390/ijms24108509] [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: 03/28/2023] [Revised: 05/04/2023] [Accepted: 05/08/2023] [Indexed: 05/28/2023] Open
Abstract
Lifestyle modifications, including increased physical activity and exercise, are recommended for non-alcoholic fatty liver disease (NAFLD). Inflamed adipose tissue (AT) contributes to the progression and development of NAFLD and oxylipins such as hydroxyeicosatetraenoic acids (HETE), hydroxydocosahexanenoic acids (HDHA), prostaglandins (PEG2), and isoprostanoids (IsoP), which all may play a role in AT homeostasis and inflammation. To investigate the role of exercise without weight loss on AT and plasma oxylipin concentrations in NAFLD subjects, we conducted a 12-week randomized controlled exercise intervention. Plasma samples from 39 subjects and abdominal subcutaneous AT biopsy samples from 19 subjects were collected both at the beginning and the end of the exercise intervention. In the AT of women, a significant reduction of gene expression of hemoglobin subunits (HBB, HBA1, HBA2) was observed within the intervention group during the 12-week intervention. Their expression levels were negatively associated with VO2max and maxW. In addition, pathways involved in adipocyte morphology alterations significantly increased, whereas pathways in fat metabolism, branched-chain amino acids degradation, and oxidative phosphorylation were suppressed in the intervention group (p < 0.05). Compared to the control group, in the intervention group, the ribosome pathway was activated, but lysosome, oxidative phosphorylation, and pathways of AT modification were suppressed (p < 0.05). Most of the oxylipins (HETE, HDHA, PEG2, and IsoP) in plasma did not change during the intervention compared to the control group. 15-F2t-IsoP significantly increased in the intervention group compared to the control group (p = 0.014). However, this oxylipin could not be detected in all samples. Exercise intervention without weight loss may influence the AT morphology and fat metabolism at the gene expression level in female NAFLD subjects.
Collapse
Affiliation(s)
- Susanne Csader
- Department of Public Health and Clinical Nutrition, University of Eastern Finland, FI-70200 Kuopio, Finland
| | - Marsena Jasiel Ismaiah
- School of Biological Sciences, The University of Hong Kong, Pokfulam Road, Hong Kong 999077, China
| | - Tiina Kuningas
- Institute of Biomedicine, School of Medicine, University of Eastern Finland, FI-70210 Kuopio, Finland
| | - Merja Heinäniemi
- Institute of Biomedicine, School of Medicine, University of Eastern Finland, FI-70210 Kuopio, Finland
| | - Janne Suhonen
- Institute of Biomedicine, School of Medicine, University of Eastern Finland, FI-70210 Kuopio, Finland
| | - Ville Männistö
- Department of Medicine, University of Eastern Finland and Kuopio University Hospital, FI-70210 Kuopio, Finland
| | - Heikki Pentikäinen
- Kuopio Research Institute of Exercise Medicine, FI-70210 Kuopio, Finland
| | - Kai Savonen
- Kuopio Research Institute of Exercise Medicine, FI-70210 Kuopio, Finland
- Department of Clinical Physiology and Nuclear Medicine, Kuopio University Hospital, FI-70210 Kuopio, Finland
| | - Milla-Maria Tauriainen
- Department of Public Health and Clinical Nutrition, University of Eastern Finland, FI-70200 Kuopio, Finland
- Department of Medicine, University of Eastern Finland and Kuopio University Hospital, FI-70210 Kuopio, Finland
| | - Jean-Marie Galano
- Institut des Biomolécules Max Mousseron (IBMM), UMR 5247, Université de Montpellier, CNRS, ENSCM, F-34093 Montpellier, France
| | - Jetty Chung-Yung Lee
- School of Biological Sciences, The University of Hong Kong, Pokfulam Road, Hong Kong 999077, China
| | - Reeta Rintamäki
- Department of Medicine, Endocrinology and Clinical Nutrition, Kuopio University Hospital, FI-70210 Kuopio, Finland
| | - Piia Karisola
- Faculty of Medicine, Human Microbiome Research Program, University of Helsinki, FI-00100 Helsinki, Finland
| | - Hani El-Nezami
- Department of Public Health and Clinical Nutrition, University of Eastern Finland, FI-70200 Kuopio, Finland
- School of Biological Sciences, The University of Hong Kong, Pokfulam Road, Hong Kong 999077, China
| | - Ursula Schwab
- Department of Public Health and Clinical Nutrition, University of Eastern Finland, FI-70200 Kuopio, Finland
- Department of Medicine, Endocrinology and Clinical Nutrition, Kuopio University Hospital, FI-70210 Kuopio, Finland
| |
Collapse
|
17
|
Yeoh BS, Vijay-Kumar M. Gut microbiota lends a helping hand to nurse liver regeneration. J Hepatol 2023; 78:681-683. [PMID: 36717024 DOI: 10.1016/j.jhep.2023.01.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Accepted: 01/19/2023] [Indexed: 01/29/2023]
Affiliation(s)
- Beng San Yeoh
- UT Microbiome Consortium, Department of Physiology & Pharmacology, University of Toledo College of Medicine and Life Sciences, Toledo, OH 43614, USA
| | - Matam Vijay-Kumar
- UT Microbiome Consortium, Department of Physiology & Pharmacology, University of Toledo College of Medicine and Life Sciences, Toledo, OH 43614, USA.
| |
Collapse
|
18
|
Dong N, Liu WY. Regulatory mechanism of downregulation of SOD1 expression on cardiomyocyte function. Sleep Breath 2023; 27:399-410. [PMID: 35307768 DOI: 10.1007/s11325-022-02595-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2021] [Revised: 03/07/2022] [Accepted: 03/10/2022] [Indexed: 10/18/2022]
Abstract
BACKGROUND Many diseases are clinically related to oxidative stress. Obstructive sleep apnea (OSA) is a common disease with oxidative stress in clinical practice, which is mostly associated with cardio-cerebrovascular diseases. It has been shown that the level of oxidative stress increases and the level of antioxidant copper zinc superoxide dismutase (SOD1) decreases in intermittent hypoxia (IH). SOD1 is one of the key antioxidant enzymes in organisms, and it can also be used as a signal transmission controller. Its abnormal expression further affects organ functions, but the specific mechanism is not yet fully clear. METHODS We downregulated the SOD1 gene in H9C2 cell line, using high-throughput RNA sequencing (RNA-seq) to find differentially expressed genes (DEGs) related to cardiomyocyte function by using GO and KEGG databases to annotate, enrich and analyze the metabolic pathways of DEGs. RESULTS Through the analysis of these functional gene changes, we can understand the regulation of SOD1 downregulation on cardiomyocyte function. The results found 213 DEGs, of which 135 genes were upregulated and 78 genes were downregulated. The upregulated DEGs were mainly enriched in biological processes such as transcriptional regulation and metabolism. The expression levels of EGR1 and NR1D1 exceeded 1 in the samples. EGR1 was reported to be involved in oxidative stress and cardiac hypertrophy, and NR1D1 played an important regulatory role in regulating inflammatory responses and reducing ROS production. The biological processes involved in downregulated DEGs mainly involve metabolism and redox processes. Among them, SCD1 and CCL2 genes were highly expressed among the genes involved in the redox process involved in SOD1. SCD1 is an important player in the regulation of cardiometabolic processes; downregulation of CCL2 reduces atherosclerosis. We found that the TNF signaling pathway, NOD-like receptor signaling pathway, and chemokine signaling pathway, which were enriched in KEGG analysis, were all associated with inflammation, and the CXCL1 and CCL7 genes are all related to inflammation. CONCLUSION The gene and signaling pathways involved in oxidative stress and inflammatory response process regulated by SOD1 were demonstrated. SOD1 may affect the function of the heart by affecting myocardial contraction, inflammation, lipid metabolism, and other pathways. It is inferred that they may also play a role in the process of OSA-related myocardial injury, which is worthy of attention and further study.
Collapse
Affiliation(s)
- Na Dong
- The First Clinical Medical College of Lanzhou University, Lanzhou, 730000, China.,Department of Respiratory and Critical Care Medicine, The First Hospital of Lanzhou University, Lanzhou, 730000, Gansu, China
| | - Wei-Ying Liu
- Department of Respiratory and Critical Care Medicine, The First Hospital of Lanzhou University, Lanzhou, 730000, Gansu, China.
| |
Collapse
|
19
|
Effects of Microalgae on Metabolic Syndrome. Antioxidants (Basel) 2023; 12:antiox12020449. [PMID: 36830009 PMCID: PMC9952430 DOI: 10.3390/antiox12020449] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 02/01/2023] [Accepted: 02/06/2023] [Indexed: 02/15/2023] Open
Abstract
Metabolic syndrome (MetS) is a cluster of metabolic disturbances, including abdominal obesity, hypertension, hypertriglyceridemia, reduced high-density lipoprotein cholesterol (HDL-C) and hyperglycemia. Adopting a healthier lifestyle and multiple drug-based therapies are current ways to manage MetS, but they have limited efficacy, albeit the prevalence of MetS is rising. Microalgae is a part of the human diet and has also been consumed as a health supplement to improve insulin sensitivity, inflammation, and several components of MetS. These therapeutic effects of microalgae are attributed to the bioactive compounds present in them that exhibit antioxidant, anti-inflammatory, anti-obesity, antihypertensive, hepatoprotective and immunomodulatory effects. Therefore, studies investigating the potential of microalgae in alleviating MetS are becoming more popular, but a review on this topic remains scarce. In this review, we discuss the effects of microalgae, specifically on MetS, by reviewing the evidence from scientific literature covering in vitro and in vivo studies. In addition, we also discuss the underlying mechanisms that modulate the effects of microalgae on MetS, and the limitations and future perspectives of developing microalgae as a health supplement for MetS. Microalgae supplementation is becoming a viable approach in alleviating metabolic disturbances and as a unique addition to the management of MetS.
Collapse
|
20
|
Armbruster MR, Mostafa ME, Caldwell RN, Grady SF, Arnatt CK, Edwards JL. Isobaric 6-plex and tosyl dual tagging for the determination of positional isomers and quantitation of monounsaturated fatty acids using rapid UHPLC-MS/MS. Analyst 2023; 148:297-304. [PMID: 36533920 DOI: 10.1039/d2an01699k] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Isobaric labelling of fatty acids is complicated by chromatographic co-elution of double bond isomers. This produces contaminated spectra which can mask important biological changes. Here two derivatization strategies are combined to improve throughput and produce MS2 reporters which change mass depending on double bond position. A 6-plex isobaric tag is attached to the acid group, followed by the tosylation of the double bond using chloramine-T. These two derivatizations allowed for the chromatographic resolution of nearly all investigated isomers using a 3.5 minute ultrafast method. Further isomer differentiation is achieved upon fragmentation as reporter masses scale with the double bond location. This occurs by a dual-fragmentation route which reveals the isobaric labelling and fragments along the double bond of each analyte. These unique fragments allowed for accurate quantitation of co-isolated double bond isomers where traditional isobaric tags would experience ratio distortion. Saturated and monounsaturated fatty acids were characterized by this rapid 6-plex method and produced an average signal RSD of 9.3% and R2 of 0.99. The method was then used to characterize fatty acid dysregulation upon inhibition of stearoyl CoA desaturase with CAY10566.
Collapse
Affiliation(s)
- Michael R Armbruster
- Department of Chemistry and Biochemistry, Saint Louis University, 3501 Laclede Ave, St. Louis, MO, 63103, USA.
| | - Mahmoud Elhusseiny Mostafa
- Department of Chemistry and Biochemistry, Saint Louis University, 3501 Laclede Ave, St. Louis, MO, 63103, USA.
| | - Rhea N Caldwell
- Department of Chemistry and Biochemistry, Saint Louis University, 3501 Laclede Ave, St. Louis, MO, 63103, USA.
| | - Scott F Grady
- Department of Chemistry and Biochemistry, Saint Louis University, 3501 Laclede Ave, St. Louis, MO, 63103, USA.
| | - Christopher K Arnatt
- Department of Chemistry and Biochemistry, Saint Louis University, 3501 Laclede Ave, St. Louis, MO, 63103, USA.
| | - James L Edwards
- Department of Chemistry and Biochemistry, Saint Louis University, 3501 Laclede Ave, St. Louis, MO, 63103, USA.
| |
Collapse
|
21
|
Raas Q, Tawbeh A, Tahri-Joutey M, Gondcaille C, Keime C, Kaiser R, Trompier D, Nasser B, Leoni V, Bellanger E, Boussand M, Hamon Y, Benani A, Di Cara F, Truntzer C, Cherkaoui-Malki M, Andreoletti P, Savary S. Peroxisomal defects in microglial cells induce a disease-associated microglial signature. Front Mol Neurosci 2023; 16:1170313. [PMID: 37138705 PMCID: PMC10149961 DOI: 10.3389/fnmol.2023.1170313] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Accepted: 03/27/2023] [Indexed: 05/05/2023] Open
Abstract
Microglial cells ensure essential roles in brain homeostasis. In pathological condition, microglia adopt a common signature, called disease-associated microglial (DAM) signature, characterized by the loss of homeostatic genes and the induction of disease-associated genes. In X-linked adrenoleukodystrophy (X-ALD), the most common peroxisomal disease, microglial defect has been shown to precede myelin degradation and may actively contribute to the neurodegenerative process. We previously established BV-2 microglial cell models bearing mutations in peroxisomal genes that recapitulate some of the hallmarks of the peroxisomal β-oxidation defects such as very long-chain fatty acid (VLCFA) accumulation. In these cell lines, we used RNA-sequencing and identified large-scale reprogramming for genes involved in lipid metabolism, immune response, cell signaling, lysosome and autophagy, as well as a DAM-like signature. We highlighted cholesterol accumulation in plasma membranes and observed autophagy patterns in the cell mutants. We confirmed the upregulation or downregulation at the protein level for a few selected genes that mostly corroborated our observations and clearly demonstrated increased expression and secretion of DAM proteins in the BV-2 mutant cells. In conclusion, the peroxisomal defects in microglial cells not only impact on VLCFA metabolism but also force microglial cells to adopt a pathological phenotype likely representing a key contributor to the pathogenesis of peroxisomal disorders.
Collapse
Affiliation(s)
- Quentin Raas
- Laboratoire Bio-PeroxIL EA7270, University of Bourgogne, Dijon, France
| | - Ali Tawbeh
- Laboratoire Bio-PeroxIL EA7270, University of Bourgogne, Dijon, France
| | - Mounia Tahri-Joutey
- Laboratoire Bio-PeroxIL EA7270, University of Bourgogne, Dijon, France
- Laboratory of Biochemistry, Neurosciences, Natural Resources and Environment, Faculty of Sciences and Techniques, University Hassan I, Settat, Morocco
| | | | - Céline Keime
- Plateforme GenomEast, IGBMC, CNRS UMR 7104, Inserm U1258, University of Strasbourg, Illkirch, France
| | - Romain Kaiser
- Plateforme GenomEast, IGBMC, CNRS UMR 7104, Inserm U1258, University of Strasbourg, Illkirch, France
| | - Doriane Trompier
- Laboratoire Bio-PeroxIL EA7270, University of Bourgogne, Dijon, France
| | - Boubker Nasser
- Laboratory of Biochemistry, Neurosciences, Natural Resources and Environment, Faculty of Sciences and Techniques, University Hassan I, Settat, Morocco
| | - Valerio Leoni
- Laboratory of Clinical Biochemistry, Hospital of Desio, ASST-Brianza and Department of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
| | - Emma Bellanger
- Aix Marseille Univ, CNRS, INSERM, CIML, Marseille, France
| | - Maud Boussand
- Aix Marseille Univ, CNRS, INSERM, CIML, Marseille, France
| | - Yannick Hamon
- Aix Marseille Univ, CNRS, INSERM, CIML, Marseille, France
| | - Alexandre Benani
- Centre des Sciences du Goût et de l’Alimentation, CNRS, INRAE, Institut Agro Dijon, University of Bourgogne Franche-Comté, Dijon, France
| | - Francesca Di Cara
- Department of Microbiology and Immunology, IWK Health Centre, Dalhousie University, Halifax, NS, Canada
| | - Caroline Truntzer
- Platform of Transfer in Biological Oncology, Georges François Leclerc Cancer Center–Unicancer, Dijon, France
| | | | | | - Stéphane Savary
- Laboratoire Bio-PeroxIL EA7270, University of Bourgogne, Dijon, France
- *Correspondence: Stéphane Savary,
| |
Collapse
|
22
|
Dobosz AM, Janikiewicz J, Krogulec E, Dziewulska A, Ajduk A, Szpila M, Nieznańska H, Szczepankiewicz AA, Wypych D, Dobrzyn A. Inhibition of stearoyl-CoA desaturase 1 in the mouse impairs pancreatic islet morphogenesis and promotes loss of β-cell identity and α-cell expansion in the mature pancreas. Mol Metab 2022; 67:101659. [PMID: 36529318 PMCID: PMC9801219 DOI: 10.1016/j.molmet.2022.101659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 12/02/2022] [Accepted: 12/10/2022] [Indexed: 12/23/2022] Open
Abstract
Abnormalities that characterize the pathophysiology of type 2 diabetes (T2D) include deficiencies of β-cells and the expansion of α-cells in pancreatic islets, manifested by lower insulin release and glucagon oversecretion. The molecular mechanisms that determine intra-islet interactions between pancreatic α- and β-cells are still not fully understood. The present study showed that stearoyl-coenzyme A (CoA) desaturase 1 (SCD1), an enzyme that is implicated in fatty acid metabolism, serves as a checkpoint in the control of endocrine cell equilibrium in pancreatic islets. Our data showed that SCD1 activity is essential for proper α-cell and β-cell lineage determination during morphogenesis of the pancreas and the maintenance of mature β-cell identity. The inhibition of SCD1 expression/activity led to both a decrease in the expression of β-cell signature genes (e.g., Pdx1, Nkx6.1, MafA, and Neurod1, among others) and induction of the expression of the dedifferentiation marker Sox9 in mature pancreatic islets. The transcriptional repression of Pdx1 and MafA in SCD1-deficient β-cells was related to the excessive methylation of promoter regions of these transcription factors. In contrast, SCD1 ablation favored the formation of α-cells over β-cells throughout pancreas organogenesis and did not compromise α-cell identity in adult pancreatic islets. Such molecular changes that were caused by SCD1 downregulation resulted in the mislocalization of α-cells within the core of islets and increased the ratio of pancreatic α- to β-cell mass. This was followed by islet dysfunction, including impairments in glucose-stimulated insulin release, simultaneously with elevations of basal glucagon secretion. Altogether, these findings provide additional mechanistic insights into the role of SCD1 in the pathogenesis of T2D.
Collapse
Affiliation(s)
- Aneta M. Dobosz
- Laboratory of Cell Signaling and Metabolic Disorders, Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warsaw, Poland,Corresponding author.
| | - Justyna Janikiewicz
- Laboratory of Cell Signaling and Metabolic Disorders, Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warsaw, Poland.
| | - Ewelina Krogulec
- Laboratory of Cell Signaling and Metabolic Disorders, Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warsaw, Poland.
| | - Anna Dziewulska
- Laboratory of Cell Signaling and Metabolic Disorders, Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warsaw, Poland.
| | - Anna Ajduk
- Department of Embryology, Institute of Developmental Biology and Biomedical Sciences, Faculty of Biology, University of Warsaw, Warsaw, Poland.
| | - Marcin Szpila
- Department of Embryology, Institute of Developmental Biology and Biomedical Sciences, Faculty of Biology, University of Warsaw, Warsaw, Poland.
| | - Hanna Nieznańska
- Laboratory of Electron Microscopy, Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warsaw, Poland.
| | - Andrzej A. Szczepankiewicz
- Laboratory of Electron Microscopy, Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warsaw, Poland
| | - Dorota Wypych
- Laboratory of Cell Signaling and Metabolic Disorders, Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warsaw, Poland.
| | - Agnieszka Dobrzyn
- Laboratory of Cell Signaling and Metabolic Disorders, Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warsaw, Poland.
| |
Collapse
|
23
|
Patel O, Muller CJF, Joubert E, Rosenkranz B, Louw J, Awortwe C. Aspalathin-rich green rooibos tea in combination with glyburide and atorvastatin enhances lipid metabolism in a db/db mouse model. FRONTIERS IN CLINICAL DIABETES AND HEALTHCARE 2022; 3:963489. [PMID: 36992750 PMCID: PMC10012079 DOI: 10.3389/fcdhc.2022.963489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Accepted: 08/24/2022] [Indexed: 11/06/2022]
Abstract
Rooibos (Aspalathus linearis), an indigenous South African plant and its major flavonoid, aspalathin, exhibited positive effects on glycemia and dyslipidemia in animal studies. Limited evidence exists on the effects of rooibos extract taken in combination with oral hypoglycemic and lipid-lowering medications. This study investigated the combined effects of a pharmaceutical grade aspalathin-rich green rooibos extract (GRT) with the sulfonylurea, glyburide, and atorvastatin in a type 2 diabetic (db/db) mouse model. Six-week-old male db/db mice and their nondiabetic lean db+ littermates were divided into 8 experimental groups (n=6/group). Db/db mice were treated orally with glyburide (5 mg/kg bodyweight), atorvastatin (80 mg/kg bodyweight) and GRT (100 mg/kg bodyweight) as mono- and combination therapies respectively, for 5 weeks. An intraperitoneal glucose tolerance test was conducted at 3 weeks of treatment. Serum was collected for lipid analyses and liver tissues for histological examination and gene expression. A significant increase in the fasting plasma glucose (FPG) of the db/db mice compared to their lean counterparts (from 7.98 ± 0.83 to 26.44 ± 1.84, p < 0.0001) was observed. Atorvastatin reduced cholesterol (from 4.00 ± 0.12 to 2.93 ± 0.13, p < 0.05) and triglyceride levels (from 2.77 ± 0.50 to 1.48 ± 0.23, p < 0.05). In db/db mice, the hypotriglyceridemic effect of atorvastatin was enhanced when combined with both GRT and glyburide (from 2.77 ± 0.50 to 1.73 ± 0.35, p = 0.0002). Glyburide reduced the severity and pattern of steatotic lipid droplet accumulation from a mediovesicular type across all lobular areas, whilst combining GRT with glyburide reduced the abundance and severity of lipid droplet accumulation in the centri- and mediolobular areas. The combination of GRT, glyburide and atorvastatin reduced the abundance and severity of lipid accumulation and the intensity score compared to the administered drugs alone. The addition of either GRT or glyburide in combination with atorvastatin had no effect on blood glucose or lipid profiles, but significantly reduced lipid droplet accumulation.
Collapse
Affiliation(s)
- Oelfah Patel
- Biomedical Research and Innovation Platform (BRIP), South African Medical Research Council (MRC), Tygerberg, South Africa
- Division of Clinical Pharmacology, Department of Medicine, Faculty of Medicine and Health Sciences, University of Stellenbosch, Tygerberg, South Africa
| | - Christo J. F. Muller
- Biomedical Research and Innovation Platform (BRIP), South African Medical Research Council (MRC), Tygerberg, South Africa
- Centre for Cardio-metabolic Research in Africa, Division of Medical Physiology, Faculty of Medicine and Health Sciences, Stellenbosch University, Tygerberg, South Africa
- Department of Biochemistry and Microbiology, University of Zululand, KwaDlangezwa, South Africa
- *Correspondence: Christo J. F. Muller,
| | - Elizabeth Joubert
- Department of Food Science, Stellenbosch University, Matieland, South Africa
- Post-Harvest and Agro-Processing Technologies, Agricultural Research Council, Infruitec-Nietvoorbij, Stellenbosch, South Africa
| | - Bernd Rosenkranz
- Division of Clinical Pharmacology, Department of Medicine, Faculty of Medicine and Health Sciences, University of Stellenbosch, Tygerberg, South Africa
| | - Johan Louw
- Biomedical Research and Innovation Platform (BRIP), South African Medical Research Council (MRC), Tygerberg, South Africa
- Department of Biochemistry and Microbiology, University of Zululand, KwaDlangezwa, South Africa
| | - Charles Awortwe
- Biomedical Research and Innovation Platform (BRIP), South African Medical Research Council (MRC), Tygerberg, South Africa
- Division of Clinical Pharmacology, Department of Medicine, Faculty of Medicine and Health Sciences, University of Stellenbosch, Tygerberg, South Africa
| |
Collapse
|
24
|
Arslan K, Daldaban F, Kecici PD, Aksel EG, Ekiz B, Akyuz B, Yilmaz A, Akcay A, Iscan K. Relationship between transport-induced stress and the expression levels of some genes in the peroxisome proliferator-activated receptor (PPAR) signaling pathway in Kivircik lambs. Small Rumin Res 2022. [DOI: 10.1016/j.smallrumres.2022.106708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
25
|
Scott JS, Nassar ZD, Swinnen JV, Butler LM. Monounsaturated fatty acids: key regulators of cell viability and intracellular signalling in cancer. Mol Cancer Res 2022; 20:1354-1364. [PMID: 35675039 DOI: 10.1158/1541-7786.mcr-21-1069] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 04/29/2022] [Accepted: 06/06/2022] [Indexed: 11/16/2022]
Abstract
Cancer cells feature increased macromolecular biosynthesis to support the formation of new organelles and membranes for cell division. In particular, lipids are key macromolecules that comprise cellular membrane components, substrates for energy generation and mediators of inter- and intracellular signalling. The emergence of more sensitive and accurate technology for profiling the "lipidome" of cancer cells has led to unprecedented leaps in understanding the complexity of cancer metabolism, but also highlighted promising therapeutic vulnerabilities. Notably, fatty acids, as lipid building blocks, are critical players in all stages of cancer development and progression and the importance of fatty acid desaturation and its impact on cancer cell biology has been well established. Recent years have seen the reports of new mechanistic insights into the role of monounsaturated fatty acids (MUFAs) in cancer, as regulators of cell death and lipid-related cellular signalling. This commentary aims to highlight these diverse roles of MUFAs in cancer cells which may yield new directions for therapeutic interventions involving these important fatty acids.
Collapse
Affiliation(s)
| | | | | | - Lisa M Butler
- University of Adelaide, School of Medicine and Freemasons Foundation Centre for Men's Health, Adelaide, SA, Australia
| |
Collapse
|
26
|
Tibori K, Orosz G, Zámbó V, Szelényi P, Sarnyai F, Tamási V, Rónai Z, Mátyási J, Tóth B, Csala M, Kereszturi É. Molecular Mechanisms Underlying the Elevated Expression of a Potentially Type 2 Diabetes Mellitus Associated SCD1 Variant. Int J Mol Sci 2022; 23:ijms23116221. [PMID: 35682900 PMCID: PMC9181825 DOI: 10.3390/ijms23116221] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Revised: 05/25/2022] [Accepted: 05/29/2022] [Indexed: 12/14/2022] Open
Abstract
Disturbances in lipid metabolism related to excessive food intake and sedentary lifestyle are among major risk of various metabolic disorders. Stearoyl-CoA desaturase-1 (SCD1) has an essential role in these diseases, as it catalyzes the synthesis of unsaturated fatty acids, both supplying for fat storage and contributing to cellular defense against saturated fatty acid toxicity. Recent studies show that increased activity or over-expression of SCD1 is one of the contributing factors for type 2 diabetes mellitus (T2DM). We aimed to investigate the impact of the common missense rs2234970 (M224L) polymorphism on SCD1 function in transfected cells. We found a higher expression of the minor Leu224 variant, which can be attributed to a combination of mRNA and protein stabilization. The latter was further enhanced by various fatty acids. The increased level of Leu224 variant resulted in an elevated unsaturated: saturated fatty acid ratio, due to higher oleate and palmitoleate contents. Accumulation of Leu224 variant was found in a T2DM patient group, however, the difference was statistically not significant. In conclusion, the minor variant of rs2234970 polymorphism might contribute to the development of obesity-related metabolic disorders, including T2DM, through an increased intracellular level of SCD1.
Collapse
Affiliation(s)
- Kinga Tibori
- Department of Molecular Biology, Semmelweis University, H-1085 Budapest, Hungary; (K.T.); (G.O.); (V.Z.); (P.S.); (F.S.); (V.T.); (Z.R.)
| | - Gabriella Orosz
- Department of Molecular Biology, Semmelweis University, H-1085 Budapest, Hungary; (K.T.); (G.O.); (V.Z.); (P.S.); (F.S.); (V.T.); (Z.R.)
| | - Veronika Zámbó
- Department of Molecular Biology, Semmelweis University, H-1085 Budapest, Hungary; (K.T.); (G.O.); (V.Z.); (P.S.); (F.S.); (V.T.); (Z.R.)
| | - Péter Szelényi
- Department of Molecular Biology, Semmelweis University, H-1085 Budapest, Hungary; (K.T.); (G.O.); (V.Z.); (P.S.); (F.S.); (V.T.); (Z.R.)
| | - Farkas Sarnyai
- Department of Molecular Biology, Semmelweis University, H-1085 Budapest, Hungary; (K.T.); (G.O.); (V.Z.); (P.S.); (F.S.); (V.T.); (Z.R.)
| | - Viola Tamási
- Department of Molecular Biology, Semmelweis University, H-1085 Budapest, Hungary; (K.T.); (G.O.); (V.Z.); (P.S.); (F.S.); (V.T.); (Z.R.)
| | - Zsolt Rónai
- Department of Molecular Biology, Semmelweis University, H-1085 Budapest, Hungary; (K.T.); (G.O.); (V.Z.); (P.S.); (F.S.); (V.T.); (Z.R.)
| | - Judit Mátyási
- Department of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics, H-1111 Budapest, Hungary; (J.M.); (B.T.)
| | - Blanka Tóth
- Department of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics, H-1111 Budapest, Hungary; (J.M.); (B.T.)
| | - Miklós Csala
- Department of Molecular Biology, Semmelweis University, H-1085 Budapest, Hungary; (K.T.); (G.O.); (V.Z.); (P.S.); (F.S.); (V.T.); (Z.R.)
- Correspondence: (M.C.); (É.K.)
| | - Éva Kereszturi
- Department of Molecular Biology, Semmelweis University, H-1085 Budapest, Hungary; (K.T.); (G.O.); (V.Z.); (P.S.); (F.S.); (V.T.); (Z.R.)
- Correspondence: (M.C.); (É.K.)
| |
Collapse
|
27
|
Nishimura N, Yokota M, Kurihara S, Iwata A, Kageyama T, Ito T, Saku A, Maezawa Y, Hirose K, Nakajima H. Airway epithelial STAT3 inhibits allergic inflammation via upregulation of stearoyl-CoA desaturase 1. Allergol Int 2022; 71:520-527. [PMID: 35660131 DOI: 10.1016/j.alit.2022.05.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 03/19/2022] [Accepted: 04/02/2022] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND Airway epithelial cells (AECs) play a crucial role in the induction and development of allergic inflammation through the development and activation of immune cells, including Th2 cells and ILC2s. Recent studies have revealed that STAT3 expressed in epithelial cells protects against pathogens and maintains homeostasis in the intestine. However, the roles of STAT3 in airway epithelium are poorly understood. Therefore, we sought to elucidate the roles of airway epithelial STAT3 in allergic airway inflammation. METHODS Allergic airway inflammation was induced by intratracheal administration of house dust mite (HDM) extract in doxycycline-induced AEC-specific STAT3-deficient (STAT3-cKO) mice and their genetic control (STAT3-WT) mice. Airway inflammation was evaluated by flow cytometric analysis of bronchoalveolar lavage fluid cells and histological analysis of the lung. Purified airway epithelial cells were analyzed by quantitative PCR and RNA-sequencing (RNA-seq). RESULTS HDM-induced airway inflammation was exacerbated in STAT3-cKO mice compared with STAT3-WT mice. RNA-seq analyses revealed that Scd1, coding stearoyl-CoA desaturase 1, was most significantly upregulated in HDM-treated STAT3-WT mice compared to HDM-treated STAT3-cKO mice. Notably, the administration of an SCD1 inhibitor exacerbated HDM-induced airway inflammation. AECs of HDM-treated STAT3-cKO mice and those of HDM-treated SCD1 inhibitor-injected mice shared 45 differentially expressed genes (DEGs). Gene enrichment analysis of the DEGs revealed that the enriched ontology clusters included fatty acid biosynthetic process and regulation of lipid biosynthetic process, suggesting the involvement of the STAT3-SCD1-lipid metabolism axis in suppressing allergic inflammation. CONCLUSIONS STAT3 is crucial for suppressing HDM-induced allergic airway inflammation, possibly inducing SCD1 expression in AECs.
Collapse
|
28
|
Isesele P, Enstad S, Huong P, Thomas R, Wagner CL, Sen S, Cheema SK. Breast Milk from Non-Obese Women with a High Omega-6 to Omega-3 Fatty Acid Ratio, but Not from Women with Obesity, Increases Lipogenic Gene Expression in 3T3-L1 Preadipocytes, Suggesting Adipocyte Dysfunction. Biomedicines 2022; 10:biomedicines10051129. [PMID: 35625866 PMCID: PMC9138889 DOI: 10.3390/biomedicines10051129] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 05/01/2022] [Accepted: 05/10/2022] [Indexed: 12/10/2022] Open
Abstract
Maternal body mass index is associated with breast milk (BM) fatty acid composition. This study investigated the effects of BM omega (n)-6:n-3 polyunsaturated fatty acids (PUFAs) from non-obese women and women with obesity on the process of adipogenesis in 3T3-L1 preadipocytes. BM samples were collected from non-obese women (BMNO) and women with obesity (BMO) at one month postpartum. The fatty acid composition was measured, and BMNO and BMO groups with the lowest (Q1) and highest (Q4) quartiles of n-6:n-3 PUFA ratios were identified. 3T3-L1 preadipocytes were differentiated in the presence or absence of BM. Lipid accumulation and the expression of genes involved in lipogenesis and lipolysis were measured. Treatment with BMNO containing high (vs. low) n-6:n-3 PUFA ratios significantly increased the mRNA expression of lipogenic genes (acetyl-CoA carboxylase, fatty acid synthase, and stearoyl-CoA desaturase); however, there was no effect when cells were treated with BMO (with either low or high n-6:n-3 PUFA ratios). Treatment with BMO (high n-6:n-3 PUFA ratio) caused larger lipid droplets. Our findings demonstrated that BMNO with a high n-6:n-3 PUFA ratio was associated with a higher expression of lipogenic genes, while BMO with a high n-6:n-3 PUFA ratio showed larger lipid droplets, suggesting adipocyte dysfunction. These findings may have implications in the BM-mediated programming of childhood obesity.
Collapse
Affiliation(s)
- Peter Isesele
- Department of Biochemistry, Memorial University, St. John’s, NL A1C 5S7, Canada;
| | - Samantha Enstad
- Winnie Palmer Hospital for Women and Babies, Orlando, FL 32806, USA;
| | - Pham Huong
- School of Science/Boreal Ecosystems and Agriculture Sciences, Memorial University, Corner Brook, NL A2H 5G4, Canada; (P.H.); (R.T.)
| | - Raymond Thomas
- School of Science/Boreal Ecosystems and Agriculture Sciences, Memorial University, Corner Brook, NL A2H 5G4, Canada; (P.H.); (R.T.)
| | - Carol L. Wagner
- Department of Pediatrics, Division of Neonatology, Shawn Jenkins Children’s Hospital, Medical University of South Carolina, Charleston, SC 29425, USA;
| | - Sarbattama Sen
- Department of Pediatric Newborn Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02115, USA;
| | - Sukhinder K. Cheema
- Department of Biochemistry, Memorial University, St. John’s, NL A1C 5S7, Canada;
- Correspondence: ; Tel.: +1-7-09-864-3987
| |
Collapse
|
29
|
Wei Y, Yi K, Shen C, Chen X, Iqbal T, Cao M, Chen T, Luo Y, Li J, Zhou X, Li C, Chen L. Whole Transcriptome Profiling of the Effects of Cadmium on the Liver of the Xiangxi Yellow Heifer. Front Vet Sci 2022; 9:846662. [PMID: 35498726 PMCID: PMC9047687 DOI: 10.3389/fvets.2022.846662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Accepted: 03/07/2022] [Indexed: 11/21/2022] Open
Abstract
Cadmium (Cd) is a major heavy metal toxicant found in industrial zones. Humans and animals are exposed to it through their diet, which results in various physiological problems. In the current study, the toxic effects of Cd on the liver were investigated by whole-transcriptome sequencing (RNA-seq) of the livers of Xiangxi heifers fed a diet with excess Cd. We randomly divided six healthy heifers into two groups. The first group received a control diet, whereas the second group received Cd-exceeding diets for 100 days. After 100 days, the livers were collected. A total of 551 differentially expressed mRNAs, 24 differentially expressed miRNAs, and 169 differentially expressed lncRNAs were identified (p < 0.05, |log2FC| >1). Differentially expressed genes (DEGs) were analyzed by gene ontology and Kyoto Encyclopedia of Genes and Genomes enrichment analyses. We found that under Cd exposure, DEGs were enriched in the adenosine 5'-monophosphate-activated protein kinase pathway, which is involved in autophagy regulation, and the peroxisome proliferator-activated receptor pathway, which is involved in lipid metabolism. In addition, the apolipoprotein A4 gene, which has anti-inflammatory and antioxidant effects, the anti-apoptotic gene ATPase H+/K+ transporting the nongastric alpha2 subunit, and the cholesterol metabolism-associated gene endothelial lipase gene were significantly downregulated. C-X-C motif chemokine ligand 3, cholesterol 7α-hydroxylase, and stearoyl-CoA desaturase, which are involved in the development of fatty liver, were significantly upregulated. These genes revealed the main effects of Cd on the liver of Xiangxi yellow heifers. The current study provides insightful information regarding the DEGs involved in autophagy regulation, apoptosis, lipid metabolism, anti-inflammation, and antioxidant enzyme activity. These may serve as useful biomarkers for predicting and treating Cd-related diseases in the future.
Collapse
Affiliation(s)
- Yameng Wei
- College of Animal Sciences, Jilin University, Changchun, China
| | - Kangle Yi
- Grassland and Herbivore Research Laboratory, Hunan Animal Husbandry and Veterinary Research Institute, Changsha, China
| | - Caomeihui Shen
- College of Animal Sciences, Jilin University, Changchun, China
| | - Xue Chen
- College of Animal Sciences, Jilin University, Changchun, China
| | - Tariq Iqbal
- College of Animal Sciences, Jilin University, Changchun, China
| | - Maosheng Cao
- College of Animal Sciences, Jilin University, Changchun, China
| | - Tong Chen
- College of Animal Sciences, Jilin University, Changchun, China
| | - Yang Luo
- Grassland and Herbivore Research Laboratory, Hunan Animal Husbandry and Veterinary Research Institute, Changsha, China
| | - Jianbo Li
- Grassland and Herbivore Research Laboratory, Hunan Animal Husbandry and Veterinary Research Institute, Changsha, China
| | - Xu Zhou
- College of Animal Sciences, Jilin University, Changchun, China
| | - Chunjin Li
- College of Animal Sciences, Jilin University, Changchun, China
| | - Lu Chen
- College of Animal Sciences, Jilin University, Changchun, China
| |
Collapse
|
30
|
Hempseed By-Product in Diets of Italian Simmental Cull Dairy Cows and Its Effects on Animal Performance and Meat Quality. Animals (Basel) 2022; 12:ani12081014. [PMID: 35454260 PMCID: PMC9029570 DOI: 10.3390/ani12081014] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Revised: 04/06/2022] [Accepted: 04/11/2022] [Indexed: 02/07/2023] Open
Abstract
Cull dairy cows are important contributors to total beef production in the USA and in Europe. Hempseed cake is a by-product of oil production and it is rich in unsaturated fatty acids (FA). This study aimed to investigate the effect of adding hempseed cake to the diet of Italian Simmental (IS) cull dairy cows on performances and meat quality. Twenty-six cull dairy cows were divided into three dietary groups: hay-based, corn silage-based and pasture-based diets. Within each group, the animals were equally divided into two treatments according to the protein source of the concentrate: hempseed cake (HEMP) or soybeans meal (SB). The trial lasted four months. HEMP showed similar in vivo performance and carcass characteristics, such as average daily gain (p > 0.05) and dressing percentage (p > 0.05), compared with SB. Meat characteristics, such as ether extract content and Warner−Bratzler shear force, were also similar between experimental groups (p > 0.05). Considering FA composition, HEMP showed similar saturated FA and polyunsaturated FA content (p > 0.05) but lower desirable fatty acids (p < 0.05) content and a tendentially lower hypocholesterolemic/hypercholesterolemic ratio (p < 0.10) than SFA. Hempseed cake can substitute soybean in the diet of cull dairy cows without effects on performance or meat quality.
Collapse
|
31
|
Kitagawa Y, Hayakawa K, Oikawa D, Ikeda K, Ikeda M, Harada D, Furuse M. Repeated restraint stress modifies fatty acid and amino acid metabolism in the mouse skin. J Vet Med Sci 2022; 84:511-519. [PMID: 35173101 PMCID: PMC9096037 DOI: 10.1292/jvms.21-0602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
In modern society, stress caused by relationships and emotions is one of the greatest
social problems. Similar to humans, domestic and captive animals live under various
stresses. Several stresses have been associated with skin disorders, such as atopic
dermatitis, but there is a lack of reliable and objective indicators for the
characterization of this association. This study aimed to define the changes in fatty acid
composition and amino acid concentration in the skin following repeated restraint stress
in ICR mice. Mice subjected to 30 min of daily restraint stress for 8 days showed changes
in the composition of saturated fatty acids, such as an increase in palmitic acid content,
which are the substrates of Δ-9 desaturase. Conversely, unsaturated fatty acids decreased
with stress treatment, which appeared to be a result of these fatty acids being the
substrate of Δ-6 desaturase. Changes in fatty acid composition after stress treatment may
be one of the factors that cause skin inflammation. The water-retention capacity may have
been lowered by stress treatment because histidine and leucine, which are natural
moisturizing factors, were significantly decreased. The collagen content in the skin
gradually decreased after repeated stress treatment. Our results indicate that repeated
restraint stress may impact skin health through changes in both the fatty acid composition
and amino acid concentration in mice.
Collapse
Affiliation(s)
- Yume Kitagawa
- Laboratory of Regulation in Metabolism and Behavior, Faculty of Agriculture, Kyushu University
| | - Kaho Hayakawa
- Laboratory of Regulation in Metabolism and Behavior, Faculty of Agriculture, Kyushu University
| | | | - Kazuki Ikeda
- Laboratory of Regulation in Metabolism and Behavior, Faculty of Agriculture, Kyushu University
| | - Maki Ikeda
- Laboratory of Regulation in Metabolism and Behavior, Faculty of Agriculture, Kyushu University
| | - Daiki Harada
- Laboratory of Regulation in Metabolism and Behavior, Faculty of Agriculture, Kyushu University
| | - Mitsuhiro Furuse
- Laboratory of Regulation in Metabolism and Behavior, Faculty of Agriculture, Kyushu University
| |
Collapse
|
32
|
Hu X, Xiang J, Li Y, Xia Y, Xu S, Gao X, Qiao S. Inhibition of stearoyl-CoA desaturase 1 potentiates anti-tumor activity of amodiaquine in non-small cell lung cancer. Biol Pharm Bull 2022; 45:438-445. [PMID: 35110426 DOI: 10.1248/bpb.b21-00843] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Non-small cell lung cancer (NSCLC) is one of the leading causes of cancer related death with few therapeutic treatment options. Under adverse tumor microenvironment, autophagy is an important mechanism of metabolic adaptations to sustain the survival and proliferation of tumor cells. Therefore, targeting autophagic activity represents a promising opportunity for NSCLC treatment. Here, we found that amodiaquine (AQ) increased autophagosome numbers and LC3BII and p62 at protein levels in A549 lung cancer cells suggesting the blockade of autophagic flux by AQ. To identify the key metabolic vulnerability associated with autophagy inhibition by AQ treatment, we then performed transcriptomics analysis in the presence or absence of AQ in A549 lung cancer cells and found stearoyl-CoA desaturase 1 (SCD) 1 was one of the most highly upregulated with AQ exposure. The induction of SCD1 by AQ exposure at both protein and mRNA level suggests that SCD1 could represent a potential therapeutic target of AQ treatment. Treatment of AQ in combination with SCD1 inhibition by A939572 demonstrated robust synergistic anti-cancer efficacy in cell proliferation assay and a lung cancer mouse xenograft model. Taken together, our study identified SCD1 could be a new therapeutic target upon autophagy inhibition by AQ exposure. Combinational treatment of autophagy inhibition and SCD1 inhibition achieves synergistic anti-tumor effect both in vitro and in vivo. This combinational approach could be a promising strategy for NSCLC treatment.
Collapse
Affiliation(s)
- Xiaolei Hu
- Cancer Institute, Xuzhou Medical University
| | | | - Yibo Li
- Cancer Institute, Xuzhou Medical University
| | - Yan Xia
- Cancer Institute, Xuzhou Medical University
| | - Siyuan Xu
- Cancer Institute, Xuzhou Medical University
| | - Xiaoge Gao
- Cancer Institute, Xuzhou Medical University
| | - Shuxi Qiao
- Cancer Institute, Xuzhou Medical University
| |
Collapse
|
33
|
Pacwa A, Machowicz J, Wojtyniak A, Pietrucha-Dutczak M, Toropainen E, Koskela A, Mrukwa-Kominek E, Lewin-Kowalik J, Smedowski A. SCD1-Fatty Acid Desaturase Inhibitor MF-438 Alleviates Latent Inflammation Induced by Preservative-Free Prostaglandin Analog Eye Drops. J Inflamm Res 2022; 15:793-806. [PMID: 35173454 PMCID: PMC8840838 DOI: 10.2147/jir.s347784] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Accepted: 12/17/2021] [Indexed: 12/15/2022] Open
Abstract
Introduction Prostaglandin analogs are the first line of treatment in patients with glaucoma. Recently, many preservative-free prostaglandin analogs have been marketed to increase their tolerance in chronic use. However, potentially safer formulations have been reported to induce inflammation within ocular surface and adnexa, associated with pronounced activation of tissue macrophages. Aim We aimed to evaluate the effect of a Stearoyl-CoA desaturase-1 (SCD1) inhibitor, MF-438, on the differentiation of monocytes exposed to eye drop detergents, representing saturated fatty acid derivatives. Methods A culture of human peripheral blood monocytes was exposed to eye drops containing fatty acid derivatives (eye drop detergents), pf-latanoprost (Monoprost®, hydroxystearate macrogolglycerol – MGHS40) or pf-tafluprost (Taflotan®, polysorbate 80 – PS80), as well as pf-latanoprost+MF-438, MGHS40, and PS80. For the negative control C(-), monocytes were cultured in basal medium, and for the positive controls, monocytes were stimulated with Lipopolysaccharide (LPS) and Interferon γ (IFNγ) (M1 macrophages) or Interleukin-4 (IL-4) (M2 macrophages). The concentration of desaturase in the cell homogenates was determined by ELISA. The number of cells was counted under a microscope at 20x magnification. Results The following concentrations of SCD1 (ng/mL) were measured: 7.8±0.3 – pf-latanoprost group; 1.5±0.4 – pf-tafluprost group; 6.8±0.7 – MGHS40 group; 0.4±0.002 – PS80 group; 0.9±0.02 – pf-latanoprost+MF-438 group; 5.4±1.6 – C(-) control; 0.5±0.04 – M1 control; 2.2±0.13 – M2 control. The percentages of macrophages in culture were 33.6%, 17.6%, 33%, 0%, 13.5%, 18.6%, 36.3%, and 39.3% for the pf-latanoprost, pf-tafluprost, MGHS40, PS80, pf-latanoprost+MF-438, C(-), M1, and M2 cultures, respectively. There was a strong correlation between SCD1 concentration and macrophage count in the culture (r=0.8, p<0.05). Conclusion Inhibition of SCD1 in monocytes prevents their transformation into macrophages after exposure to saturated fatty acid derivatives contained in eye drops, which may contribute to the limitation of latent inflammation within ocular adnexa and could possibly translate into better tolerability of the topical treatment. ![]()
Point your SmartPhone at the code above. If you have a QR code reader the video abstract will appear. Or use: https://youtu.be/6BHgWVB-VRU
Collapse
Affiliation(s)
- Anna Pacwa
- Department of Physiology, Faculty of Medical Sciences in Katowice, Medical University of Silesia, Katowice, Poland
- GlaucoTech Co, Katowice, Poland
| | - Joanna Machowicz
- Department of Physiology, Faculty of Medical Sciences in Katowice, Medical University of Silesia, Katowice, Poland
| | - Alicja Wojtyniak
- Department of Physiology, Faculty of Medical Sciences in Katowice, Medical University of Silesia, Katowice, Poland
| | - Marita Pietrucha-Dutczak
- Department of Physiology, Faculty of Medical Sciences in Katowice, Medical University of Silesia, Katowice, Poland
| | - Elisa Toropainen
- School of Pharmacy, Faculty of Health Sciences, University of Eastern Finland, Kuopio, Finland
- Department of Ophthalmology, University of Eastern Finland, Kuopio, Finland
| | - Ali Koskela
- Department of Ophthalmology, University of Eastern Finland, Kuopio, Finland
| | - Ewa Mrukwa-Kominek
- Department of Ophthalmology, Faculty of Medical Sciences in Katowice, Medical University of Silesia, Katowice, Poland
- Department of Ophthalmology, Professor K. Gibinski University Clinical Center, Medical University of Silesia, Katowice, Poland
| | - Joanna Lewin-Kowalik
- Department of Physiology, Faculty of Medical Sciences in Katowice, Medical University of Silesia, Katowice, Poland
- GlaucoTech Co, Katowice, Poland
| | - Adrian Smedowski
- Department of Physiology, Faculty of Medical Sciences in Katowice, Medical University of Silesia, Katowice, Poland
- GlaucoTech Co, Katowice, Poland
- Department of Ophthalmology, Professor K. Gibinski University Clinical Center, Medical University of Silesia, Katowice, Poland
- Correspondence: Adrian Smedowski, Department of Physiology, Medical University of Silesia, Medykow 18, Katowice, 40-752, Poland, Tel +48 530813996, Fax +48 322525087, Email
| |
Collapse
|
34
|
Zhou D, Bao Q, Fu S. Anticancer activity of ursolic acid on retinoblastoma cells determined by bioinformatics analysis and validation. ANNALS OF TRANSLATIONAL MEDICINE 2021; 9:1548. [PMID: 34790754 PMCID: PMC8576664 DOI: 10.21037/atm-21-4617] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Accepted: 09/28/2021] [Indexed: 12/27/2022]
Abstract
Background This article aims to explore whether ursolic acid (UA) inhibits the progression of retinoblastoma (Rb) by regulating stearoyl-CoA desaturase (SCD). Methods The Gene Expression Omnibus (GEO) database was used to filter the chip, then the GEO2R software was used to analyze the microarray data (GSE97508, GSE24673, and GSE110811). Gene set enrichment analysis (GSEA) was used to analyze the relationship between the expression level of SCD and the proliferation, migration, invasion, and inflammation in Rb patients. SO-RB50 and Y79 cell proliferation, migration, and invasion were assessed by the CCK-8 assay, the colony formation assay, the Transwell assay, and the wound scratch test. The protein expression levels of SCD were measured by western blot. The mRNA expression levels of IL-8, IL-6, CXCL1, and CCL2 were measured by RT-qPCR. The protein expression levels of IL-8 and IL-6 were measured by ELISA. A xenograft nude mouse model was established to evaluate the effect of UA on tumor growth in male BALB/c mice. Results The expression levels of SCD were related to cell proliferation, migration, invasion, and inflammation. UA inhibited SO-RB50 and Y79 cell proliferation, migration, and invasion. At the same time, UA suppressed tumor growth in the xenograft nude mouse model. Overexpression of SCD promoted SO-RB50 and Y79 cell proliferation, migration, invasion, and inflammation, while SCD knockout inhibited SO-RB50 and Y79 cell proliferation, migration, invasion, and inflammation. Importantly, UA inhibited the proliferation, migration, and invasion of Rb cells through SCD inhibition. Conclusions UA inhibited the proliferation, migration, and invasion of Rb cells through SCD. This provides a new scientific basis for targeted therapy of Rb.
Collapse
Affiliation(s)
- Dan Zhou
- Department of Ophthalmology, Suzhou High Tech Zone People's Hospital, Suzhou, China
| | - Qi Bao
- Department of Ophthalmology, Suzhou High Tech Zone People's Hospital, Suzhou, China
| | - Songbin Fu
- Department of Ophthalmology, Harbin Medical University, Harbin, China
| |
Collapse
|
35
|
Petroff AB, Weir RL, Yates CR, Ng JD, Baudry J. Sequential Dynamics of Stearoyl-CoA Desaturase-1(SCD1)/Ligand Binding and Unbinding Mechanism: A Computational Study. Biomolecules 2021; 11:biom11101435. [PMID: 34680068 PMCID: PMC8533217 DOI: 10.3390/biom11101435] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 09/24/2021] [Accepted: 09/24/2021] [Indexed: 11/17/2022] Open
Abstract
Stearoyl-CoA desaturase-1 (SCD1 or delta-9 desaturase, D9D) is a key metabolic protein that modulates cellular inflammation and stress, but overactivity of SCD1 is associated with diseases, including cancer and metabolic syndrome. This transmembrane endoplasmic reticulum protein converts saturated fatty acids into monounsaturated fatty acids, primarily stearoyl-CoA into oleoyl-CoA, which are critical products for energy metabolism and membrane composition. The present computational molecular dynamics study characterizes the molecular dynamics of SCD1 with substrate, product, and as an apoprotein. The modeling of SCD1:fatty acid interactions suggests that: (1) SCD1:CoA moiety interactions open the substrate-binding tunnel, (2) SCD1 stabilizes a substrate conformation favorable for desaturation, and (3) SCD1:product interactions result in an opening of the tunnel, possibly allowing product exit into the surrounding membrane. Together, these results describe a highly dynamic series of SCD1 conformations resulting from the enzyme:cofactor:substrate interplay that inform drug-discovery efforts.
Collapse
Affiliation(s)
- Anna B. Petroff
- Department of Biological Sciences, The University of Alabama in Huntsville, Huntsville, AL 35899, USA; (A.B.P.); (J.D.N.)
| | - Rebecca L. Weir
- Department of Biochemistry and Cellular and Molecular Biology, The University of Tennessee, Knoxville, TN 37996, USA;
| | - Charles R. Yates
- National Center for Natural Products Research, The University of Mississippi School of Pharmacy, Oxford, MS 38677, USA;
| | - Joseph D. Ng
- Department of Biological Sciences, The University of Alabama in Huntsville, Huntsville, AL 35899, USA; (A.B.P.); (J.D.N.)
| | - Jerome Baudry
- Department of Biological Sciences, The University of Alabama in Huntsville, Huntsville, AL 35899, USA; (A.B.P.); (J.D.N.)
- Correspondence:
| |
Collapse
|
36
|
Miralles-Pérez B, Méndez L, Nogués MR, Sánchez-Martos V, Fortuño-Mar À, Ramos-Romero S, Hereu M, Medina I, Romeu M. Effects of a Fish Oil Rich in Docosahexaenoic Acid on Cardiometabolic Risk Factors and Oxidative Stress in Healthy Rats. Mar Drugs 2021; 19:md19100555. [PMID: 34677454 PMCID: PMC8539050 DOI: 10.3390/md19100555] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 09/23/2021] [Accepted: 09/27/2021] [Indexed: 01/08/2023] Open
Abstract
Omega-3 polyunsaturated fatty acids are associated with a lower risk of cardiometabolic diseases. However, docosahexaenoic acid (DHA) is easily oxidized, leading to cellular damage. The present study examined the effects of an increased concentration of DHA in fish oil (80% of total fatty acids) on cardiometabolic risk factors and oxidative stress compared to coconut oil, soybean oil, and fish oil containing eicosapentaenoic acid (EPA) and DHA in a balanced ratio. Forty healthy male Sprague-Dawley rats were supplemented with corresponding oil for 10 weeks. Supplementation with the fish oil containing 80% DHA decreased plasma fat, plasma total cholesterol and muscle fat compared to the coconut oil and the soybean oil. Increasing concentrations of DHA induced incorporation of DHA and EPA in cell membranes and tissues along with a decrease in ω-6 arachidonic acid. The increase in DHA promoted lipid peroxidation, protein carbonylation and antioxidant response. Taken together, the increased concentration of DHA in fish oil reduced fat accumulation compared to the coconut oil and the soybean oil. This benefit was accompanied by high lipid peroxidation and subsequent protein carbonylation in plasma and in liver. In our healthy framework, the slightly higher carbonylation found after receiving fish oil containing 80% DHA might be a protecting mechanism, which fit with the general improvement of antioxidant defense observed in those rats.
Collapse
Affiliation(s)
- Bernat Miralles-Pérez
- Functional Nutrition, Oxidation and Cardiovascular Diseases Research Group (NFOC-SALUT), Pharmacology Unit, Department of Basic Medical Sciences, Universitat Rovira i Virgili, C/Sant Llorenç 21, E-43201 Reus, Spain; (B.M.-P.); (V.S.-M.); (M.R.)
| | - Lucía Méndez
- Chemistry of Marine Products, Department of Food Technology, Institute of Marine Research (IIM-CSIC), C/Eduardo Cabello 6, E-36208 Vigo, Spain; (L.M.); (I.M.)
| | - Maria Rosa Nogués
- Functional Nutrition, Oxidation and Cardiovascular Diseases Research Group (NFOC-SALUT), Pharmacology Unit, Department of Basic Medical Sciences, Universitat Rovira i Virgili, C/Sant Llorenç 21, E-43201 Reus, Spain; (B.M.-P.); (V.S.-M.); (M.R.)
- Correspondence: ; Tel.: +34-977-75-9355
| | - Vanessa Sánchez-Martos
- Functional Nutrition, Oxidation and Cardiovascular Diseases Research Group (NFOC-SALUT), Pharmacology Unit, Department of Basic Medical Sciences, Universitat Rovira i Virgili, C/Sant Llorenç 21, E-43201 Reus, Spain; (B.M.-P.); (V.S.-M.); (M.R.)
| | | | - Sara Ramos-Romero
- Department of Biological Chemistry, Institute of Advanced Chemistry of Catalonia (IQAC-CSIC), C/Jordi Girona 18-26, E-08034 Barcelona, Spain; (S.R.-R.); (M.H.)
- Department of Cell Biology, Physiology & Immunology, Faculty of Biology, University of Barcelona, Avd/Diagonal 643, E-08028 Barcelona, Spain
| | - Mercè Hereu
- Department of Biological Chemistry, Institute of Advanced Chemistry of Catalonia (IQAC-CSIC), C/Jordi Girona 18-26, E-08034 Barcelona, Spain; (S.R.-R.); (M.H.)
| | - Isabel Medina
- Chemistry of Marine Products, Department of Food Technology, Institute of Marine Research (IIM-CSIC), C/Eduardo Cabello 6, E-36208 Vigo, Spain; (L.M.); (I.M.)
| | - Marta Romeu
- Functional Nutrition, Oxidation and Cardiovascular Diseases Research Group (NFOC-SALUT), Pharmacology Unit, Department of Basic Medical Sciences, Universitat Rovira i Virgili, C/Sant Llorenç 21, E-43201 Reus, Spain; (B.M.-P.); (V.S.-M.); (M.R.)
| |
Collapse
|
37
|
Taghizad F, Kazerani HR, Dehghani H, Asoodeh A, Yaghubi D. A novel approach towards obesity: The use of a bacterial product, gassericin A, in 3T3-L1 cells. Obes Res Clin Pract 2021; 15:499-505. [PMID: 34474970 DOI: 10.1016/j.orcp.2021.08.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Revised: 08/21/2021] [Accepted: 08/23/2021] [Indexed: 10/20/2022]
Abstract
BACKGROUND AND OBJECTIVE The problem of obesity and its related complications are adversely affecting human society. We studied the effects of gassericin A, a bacteriocin produced by the intestinal bacteria, on adipocyte differentiation and development. DESIGN Gassericin A was purified from Lactobacillus gasseri LA39 and was added to the culture medium of 3T3-L1 cells in two phases: Phase 1, 3T3-L1 cells were incubated with gassericin A while being induced to adipocytes (days 1-7); phase 2, the cells were incubated with the bacteriocin after being induced to adipocytes (days 8-12). The resultant changes in the pattern of expression of some of the important genes involved in adipogenesis were evaluated by RT-qPCR. The viability of cells and their numbers were also studied. RESULTS In phase 1 of the study, the levels of transcripts for stearoyl CoA desaturase (SCD-1), zinc finger protein 423 (zfp-423), and glucose transporter 4 (GLUT4) genes were significantly reduced, while that of 422ap2 gene showed a significant increment (p < 0.05). In phase 2, the zfp-423 gene showed a reduction of expression and the 422ap2 gene showed an increase in expression (p < 0.05). The other genes including UCP-1 and TNF-α did not show any significant changes in neither of the groups. Gassericin A did not affect the morphology or viability of the cells, however, the numbers of cells had nearly doubled in the treatment groups. CONCLUSION It seems that gassericin A could significantly alter the properties of adipocytes while they are in the process of development and after they have developed.
Collapse
Affiliation(s)
- Fereidoun Taghizad
- Department of Basic Sciences, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Hamid Reza Kazerani
- Department of Basic Sciences, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, Iran.
| | - Hesam Dehghani
- Department of Basic Sciences, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, Iran; Division of Biotechnology, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, Iran; Stem Cell Biology and Regenerative Medicine Research Group, Research Institute of Biotechnology, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Ahmad Asoodeh
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Danial Yaghubi
- Department of Basic Sciences, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, Iran
| |
Collapse
|
38
|
Mazi TA, Borkowski K, Newman JW, Fiehn O, Bowlus CL, Sarkar S, Matsukuma K, Ali MR, Kieffer DA, Wan YJY, Stanhope KL, Havel PJ, Medici V. Ethnicity-specific alterations of plasma and hepatic lipidomic profiles are related to high NAFLD rate and severity in Hispanic Americans, a pilot study. Free Radic Biol Med 2021; 172:490-502. [PMID: 34182070 PMCID: PMC8712226 DOI: 10.1016/j.freeradbiomed.2021.06.024] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 06/19/2021] [Accepted: 06/23/2021] [Indexed: 02/06/2023]
Abstract
Nonalcoholic fatty liver disease (NAFLD) is a progressive condition that includes steatosis (NAFL) and nonalcoholic steatohepatitis (NASH). In the U.S., Hispanics (HIS) are afflicted with NAFLD at a higher rate and severity compared to other ethnicities. To date, the mechanisms underlying this disparity have not been elucidated. In this pilot study, we compared untargeted plasma metabolomic profiles for primary metabolism, complex lipids, choline and related compounds between a group of HIS (n = 7) and White Caucasian (CAU, n = 8) subjects with obesity and biopsy-characterized NAFL to ethnicity-matched lean healthy controls (n = 14 HIS and 8 CAU). We also compared liver and plasma metabolomic profiles in a group of HIS and CAU subjects with obesity and NASH of comparable NAFLD Activity Scores, to BMI-matched NASH-free subjects in both ethnicities. Results highlight signs of metabolic dysregulation observed in HIS, independent of obesity, including higher plasma triglycerides, acylcarnitines, and free fatty acids. With NASH progression, there were ethnicity-related differences in the hepatic profile, including higher free fatty acids and lysophospholipids seen in HIS, suggesting lipotoxicity is involved in the progression of NASH. We also observed greater hepatic triglyceride content, higher plasma triglyceride concentrations and lower hepatic phospholipids with signs of impaired hepatic mitochondrial β-oxidation. These findings provide preliminary evidence indicating ethnicity-related variations that could potentially modulate the risk for progression of NALD to NASH.
Collapse
Affiliation(s)
- Tagreed A Mazi
- Department of Nutrition, University of California Davis, 3135 Meyer Hall, One Shields Avenue, Davis, CA, 95616, USA; Department of Community Health Sciences-Clinical Nutrition, College of Applied Medical Sciences, King Saud University, P.O. Box 10219, Riyadh, 11433, Saudi Arabia.
| | - Kamil Borkowski
- West Coast Metabolomic Center, Genome Center, University of California-Davis, Davis, CA, 95616, USA
| | - John W Newman
- West Coast Metabolomic Center, Genome Center, University of California-Davis, Davis, CA, 95616, USA; United States Department of Agriculture-Agriculture Research Service-Western Human Nutrition Research Center, Davis, CA, 95616, USA; Department of Nutrition, University of California-Davis, Davis, CA, 95616, USA
| | - Oliver Fiehn
- West Coast Metabolomic Center, Genome Center, University of California-Davis, Davis, CA, 95616, USA
| | - Christopher L Bowlus
- Department of Internal Medicine, Division of Gastroenterology and Hepatology, University of California Davis, 4150 V Street, Suite 3500 Sacramento, CA, 95817, USA
| | - Souvik Sarkar
- Department of Internal Medicine, Division of Gastroenterology and Hepatology, University of California Davis, 4150 V Street, Suite 3500 Sacramento, CA, 95817, USA
| | - Karen Matsukuma
- Department of Pathology and Laboratory Medicine, University of California-Davis, Sacramento, CA, 95817, USA
| | - Mohamed R Ali
- Department of Surgery, University of California, Davis, 2221 Stockton Boulevard, Cypress Building, Sacramento, CA, 95817, USA
| | - Dorothy A Kieffer
- Department of Internal Medicine, Division of Gastroenterology and Hepatology, University of California Davis, 4150 V Street, Suite 3500 Sacramento, CA, 95817, USA
| | - Yu-Jui Y Wan
- Department of Pathology and Laboratory Medicine, University of California-Davis, Sacramento, CA, 95817, USA
| | - Kimber L Stanhope
- Department of Molecular Biosciences, School of Veterinary Medicine, University of California, Davis, CA, 95616, USA
| | - Peter J Havel
- Department of Nutrition, University of California-Davis, Davis, CA, 95616, USA; Department of Molecular Biosciences, School of Veterinary Medicine, University of California, Davis, CA, 95616, USA
| | - Valentina Medici
- Department of Internal Medicine, Division of Gastroenterology and Hepatology, University of California Davis, 4150 V Street, Suite 3500 Sacramento, CA, 95817, USA.
| |
Collapse
|
39
|
Contreras-López EF, Cruz-Hernández CD, Cortés-Ramírez SA, Ramírez-Higuera A, Peña-Montes C, Rodríguez-Dorantes M, Oliart-Ros RM. Inhibition of Stearoyl-CoA Desaturase by Sterculic Oil Reduces Proliferation and Induces Apoptosis in Prostate Cancer Cell Lines. Nutr Cancer 2021; 74:1308-1321. [PMID: 34282662 DOI: 10.1080/01635581.2021.1952442] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Prostate cancer (PCa) is a common type of cancer affecting male population. PCa treatments have side effects and are temporarily effective, so new therapeutic options are being investigated. Due to the high demand of energy for cell proliferation, an increase in the expression and activity of lipogenic enzymes such as the stearoyl-CoA desaturase (SCD) have been observed in PCa. Sterculic acid, contained in the seed's oil of Malvales, is a natural inhibitor of SCD. The objective of our investigation was to evaluate the effects of sterculic oil (SO) from Sterculia apetala seeds on proliferation, cell cycle and apoptosis in prostate cancer cells. SO was administered to PC3 and LNCaP cells, and to prostate normal cells; cell viability, cell cycle, apoptosis, SCD gene and protein expression and enzymatic activity were analyzed. SO administration (4 mM sterculic acid) diminished cell viability in LNCaP and PC3 cells, arrested cell cycle in G2 and promoted apoptosis. SO diminished SCD enzymatic activity with no effects on gene nor protein expression. Our results suggest that SO might offer benefits as an adjuvant in hormonal and chemotherapy prostate cancer treatments. This is the first study to analyze the effect of SO on cancer cells.
Collapse
Affiliation(s)
| | | | | | | | - Carolina Peña-Montes
- Food Research and Development Unit (UNIDA), Tecnológico Nacional de México/IT Veracruz, Veracruz, Mexico
| | | | - Rosa María Oliart-Ros
- Food Research and Development Unit (UNIDA), Tecnológico Nacional de México/IT Veracruz, Veracruz, Mexico
| |
Collapse
|
40
|
Dasilva G, Lois S, Méndez L, Miralles-Pérez B, Romeu M, Ramos-Romero S, Torres JL, Medina I. Fish Oil Improves Pathway-Oriented Profiling of Lipid Mediators for Maintaining Metabolic Homeostasis in Adipose Tissue of Prediabetic Rats. Front Immunol 2021; 12:608875. [PMID: 33968013 PMCID: PMC8097180 DOI: 10.3389/fimmu.2021.608875] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Accepted: 03/31/2021] [Indexed: 12/12/2022] Open
Abstract
Adipose tissue is now recognized as an active organ with an important homeostatic function in glucose and lipid metabolism and the development of insulin resistance. The present research investigates the role of lipid mediators and lipid profiling for controlling inflammation and the metabolic normal function of white adipose tissue from rats suffering from diet-induced prediabetes. Additionally, the contribution to the adipose lipidome induced by the consumption of marine ω-3 PUFAs as potential regulators of inflammation is addressed. For that, the effects on the inflammatory response triggered by high-fat high-sucrose (HFHS) diets were studied in male Sprague-Dawley rats. Using SPE-LC-MS/MS-based metabolo-lipidomics, a range of eicosanoids, docosanoids and specialized pro-resolving mediators (SPMs) were measured in white adipose tissue. The inflammatory response occurring in prediabetic adipose tissue was associated with the decomposition of ARA epoxides to ARA-dihydroxides, the reduction of oxo-derivatives and the formation of prostaglandins (PGs). In an attempt to control the inflammatory response initiated, LOX and non-enzymatic oxidation shifted toward the production of the less pro-inflammatory EPA and DHA metabolites rather than the high pro-inflammatory ARA hydroxides. Additionally, the change in LOX activity induced the production of intermediate hydroxides precursors of SPMs as protectins (PDs), resolvins (Rvs) and maresins (MaRs). This compensatory mechanism to achieve the restoration of tissue homeostasis was significantly strengthened through supplementation with fish oils. Increasing proportions of ω-3 PUFAs in adipose tissue significantly stimulated the formation of DHA-epoxides by cytochrome P450, the production of non-enzymatic EPA-metabolites and prompted the activity of 12LOX. Finally, protectin PDX was significantly reduced in the adipose tissue of prediabetic rats and highly enhanced through ω-3 PUFAs supplementation. Taken together, these actively coordinated modifications constitute key mechanisms to restore adipose tissue homeostasis with an important role of lipid mediators. This compensatory mechanism is reinforced through the supplementation of the diet with fish oils with high and balanced contents of EPA and DHA. The study highlights new insides on the targets for effective treatment of incipient diet-induced diabetes and the mechanism underlying the potential anti-inflammatory action of marine lipids.
Collapse
Affiliation(s)
- Gabriel Dasilva
- Food Science Department, Instituto de Investigaciones Marinas (IIM-CSIC), Vigo, Spain
| | - Salomé Lois
- Food Science Department, Instituto de Investigaciones Marinas (IIM-CSIC), Vigo, Spain
| | - Lucía Méndez
- Food Science Department, Instituto de Investigaciones Marinas (IIM-CSIC), Vigo, Spain
| | - Bernat Miralles-Pérez
- Unitat de Farmacologia, Facultat de Medicina i Ciències de la Salut, Universitat Rovira i Virgili, Reus, Spain
| | - Marta Romeu
- Unitat de Farmacologia, Facultat de Medicina i Ciències de la Salut, Universitat Rovira i Virgili, Reus, Spain
| | - Sara Ramos-Romero
- Biological Chemistry Department, Instituto de Química Avanzada de Catalunya (IQAC-CSIC), Barcelona, Spain
| | - Josep L Torres
- Biological Chemistry Department, Instituto de Química Avanzada de Catalunya (IQAC-CSIC), Barcelona, Spain
| | - Isabel Medina
- Food Science Department, Instituto de Investigaciones Marinas (IIM-CSIC), Vigo, Spain
| |
Collapse
|
41
|
Polymorphisms in the stearoyl-CoA desaturase gene modify blood glucose response to dietary oils varying in MUFA content in adults with obesity. Br J Nutr 2021; 127:503-512. [PMID: 33829984 DOI: 10.1017/s0007114521001264] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Diets varying in SFA and MUFA content can impact glycaemic control; however, whether underlying differences in genetic make-up can influence blood glucose responses to these dietary fatty acids is unknown. We examined the impact of dietary oils varying in SFA/MUFA content on changes in blood glucose levels (primary outcome) and whether these changes were modified by variants in the stearoyl-CoA desaturase (SCD) gene (secondary outcome). Obese men and women participating in the randomised, crossover, isoenergetic, controlled-feeding Canola Oil Multicenter Intervention Trial II consumed three dietary oils for 6 weeks, with washout periods of ˜6 weeks between each treatment. Diets studied included a high SFA/low MUFA Control oil (36·6 % SFA/28·2 % MUFA), a conventional canola oil (6·2 % SFA/63·1 % MUFA) and a high-oleic acid canola oil (5·8 % SFA/74·7 % MUFA). No differences in fasting blood glucose were observed following the consumption of the dietary oils. However, when stratified by SCD genotypes, significant SNP-by-treatment interactions on blood glucose response were found with additive models for rs1502593 (P = 0·01), rs3071 (P = 0·02) and rs522951 (P = 0·03). The interaction for rs3071 remained significant (P = 0·005) when analysed with a recessive model, where individuals carrying the CC genotype showed an increase (0·14 (sem 0·09) mmol/l) in blood glucose levels with the Control oil diet, but reductions in blood glucose with both MUFA oil diets. Individuals carrying the AA and AC genotypes experienced reductions in blood glucose in response to all three oils. These findings identify a potential new target for personalised nutrition approaches aimed at improving glycaemic control.
Collapse
|
42
|
Terburgh K, Coetzer J, Lindeque JZ, van der Westhuizen FH, Louw R. Aberrant BCAA and glutamate metabolism linked to regional neurodegeneration in a mouse model of Leigh syndrome. Biochim Biophys Acta Mol Basis Dis 2021; 1867:166082. [PMID: 33486097 DOI: 10.1016/j.bbadis.2021.166082] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 12/23/2020] [Accepted: 01/16/2021] [Indexed: 02/07/2023]
Abstract
The dysfunction of respiratory chain complex I (CI) is the most common form of mitochondrial disease that most often presents as Leigh syndrome (LS) in children - a severe neurometabolic disorder defined by progressive focal lesions in specific brain regions. The mechanisms underlying this region-specific vulnerability to CI deficiency, however, remain elusive. Here, we examined brain regional respiratory chain enzyme activities and metabolic profiles in a mouse model of LS with global CI deficiency to gain insight into regional vulnerability to neurodegeneration. One lesion-resistant and three lesion-prone brain regions were investigated in Ndufs4 knockout (KO) mice at the late stage of LS. Enzyme assays confirmed significantly decreased (60-80%) CI activity in all investigated KO brain regions, with the lesion-resistant region displaying the highest residual CI activity (38% of wild type). A higher residual CI activity, and a less perturbed NADH/NAD+ ratio, correlate with less severe metabolic perturbations in KO brain regions. Moreover, less perturbed BCAA oxidation and increased glutamate oxidation seem to distinguish lesion-resistant from -prone KO brain regions, thereby identifying key areas of metabolism to target in future therapeutic intervention studies.
Collapse
Affiliation(s)
- Karin Terburgh
- Human Metabolomics, Faculty of Natural and Agricultural Sciences, North-West University (Potchefstroom Campus), South Africa
| | - Janeé Coetzer
- Human Metabolomics, Faculty of Natural and Agricultural Sciences, North-West University (Potchefstroom Campus), South Africa
| | - Jeremy Z Lindeque
- Human Metabolomics, Faculty of Natural and Agricultural Sciences, North-West University (Potchefstroom Campus), South Africa
| | - Francois H van der Westhuizen
- Human Metabolomics, Faculty of Natural and Agricultural Sciences, North-West University (Potchefstroom Campus), South Africa
| | - Roan Louw
- Human Metabolomics, Faculty of Natural and Agricultural Sciences, North-West University (Potchefstroom Campus), South Africa.
| |
Collapse
|
43
|
Xu J, Taubert S. Beyond Proteostasis: Lipid Metabolism as a New Player in ER Homeostasis. Metabolites 2021; 11:52. [PMID: 33466824 PMCID: PMC7830277 DOI: 10.3390/metabo11010052] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 01/04/2021] [Accepted: 01/11/2021] [Indexed: 12/12/2022] Open
Abstract
Biological membranes are not only essential barriers that separate cellular and subcellular structures, but also perform other critical functions such as the initiation and propagation of intra- and intercellular signals. Each membrane-delineated organelle has a tightly regulated and custom-made membrane lipid composition that is critical for its normal function. The endoplasmic reticulum (ER) consists of a dynamic membrane network that is required for the synthesis and modification of proteins and lipids. The accumulation of unfolded proteins in the ER lumen activates an adaptive stress response known as the unfolded protein response (UPR-ER). Interestingly, recent findings show that lipid perturbation is also a direct activator of the UPR-ER, independent of protein misfolding. Here, we review proteostasis-independent UPR-ER activation in the genetically tractable model organism Caenorhabditis elegans. We review the current knowledge on the membrane lipid composition of the ER, its impact on organelle function and UPR-ER activation, and its potential role in human metabolic diseases. Further, we summarize the bi-directional interplay between lipid metabolism and the UPR-ER. We discuss recent progress identifying the different respective mechanisms by which disturbed proteostasis and lipid bilayer stress activate the UPR-ER. Finally, we consider how genetic and metabolic disturbances may disrupt ER homeostasis and activate the UPR and discuss how using -omics-type analyses will lead to more comprehensive insights into these processes.
Collapse
Affiliation(s)
- Jiaming Xu
- Graduate Program in Cell and Developmental Biology, The University of British Columbia, Vancouver, BC V6T 1Z4, Canada;
- Centre for Molecular Medicine and Therapeutics, The University of British Columbia, Vancouver, BC V5Z 4H4, Canada
- Healthy Starts Theme, British Columbia Children’s Hospital Research Institute, Vancouver, BC V5Z 4H4, Canada
| | - Stefan Taubert
- Graduate Program in Cell and Developmental Biology, The University of British Columbia, Vancouver, BC V6T 1Z4, Canada;
- Centre for Molecular Medicine and Therapeutics, The University of British Columbia, Vancouver, BC V5Z 4H4, Canada
- Healthy Starts Theme, British Columbia Children’s Hospital Research Institute, Vancouver, BC V5Z 4H4, Canada
- Department of Medical Genetics, The University of British Columbia, Vancouver, BC V5Z 4H4, Canada
| |
Collapse
|
44
|
Berg J, Seyedsadjadi N, Grant R. Saturated Fatty Acid Intake Is Associated With Increased Inflammation, Conversion of Kynurenine to Tryptophan, and Delta-9 Desaturase Activity in Healthy Humans. Int J Tryptophan Res 2021; 13:1178646920981946. [PMID: 33414641 PMCID: PMC7750901 DOI: 10.1177/1178646920981946] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Accepted: 11/25/2020] [Indexed: 01/12/2023] Open
Abstract
Saturated fat ingestion has previously been linked to increases in inflammation. However the relationship between saturated fatty acid (SFA) intake and the kynureine:tryptophan ratio ([Kyn]:[Trp]), a marker of inflammation, has not been previously investigated. This study evaluated in healthy, middle aged, individuals (men = 48, women = 52), potential relationships between SFA intake, red blood cell (RBC) membrane SFAs and monounsaturated fatty acids (MUFA), the [Kyn]:[Trp] ratio, C-reactive protein (CRP), TNF-α and Δ9 desaturase activity. [Kyn]:[Trp] was positively associated with increases in Total fat (P = .034) intake, including Total SFA (P = .029) and Total MUFA (P = .042) intakes. Unexpectedly the [Kyn]:[Trp] ratio was inversely associated with the percentage of Total SFA (P = .004) and positively associated with percentage of Total MUFA (P = .012) present in the RBC membrane. We found a positive association between Δ9 desaturase activity, responsible for the desaturation of a various SFAs to MUFAs, and [Kyn]:[Trp] (P = .008). [Kyn]:[Trp] was also positively associated with CRP (P = .044), however no significant relationship between [Kyn]:[Trp] and TNF-α was found. This study shows for the first time that SFA consumption increases inflammatory pathways linked to increased tryptophan to kynurenine conversion, even in healthy humans. Our data also suggests that SFA linked increases in inflammation occur concomitantly with an upregulation of Δ9 desaturase activity resulting in increased desaturation of SFA substrates to their MUFA derivatives.
Collapse
Affiliation(s)
- Jade Berg
- Australasian Research Institute, Sydney Adventist Hospital, Sydney, Australia
| | - Neda Seyedsadjadi
- Australasian Research Institute, Sydney Adventist Hospital, Sydney, Australia.,School of Medical Sciences, Faculty of Medicine, University of New South Wales, Sydney, Australia
| | - Ross Grant
- Australasian Research Institute, Sydney Adventist Hospital, Sydney, Australia.,School of Medical Sciences, Faculty of Medicine, University of New South Wales, Sydney, Australia.,Sydney Adventist Hospital Clinical School, University of Sydney, Sydney, Australia
| |
Collapse
|
45
|
Ye S, Matthan NR, Lamon-Fava S, Aguilar GS, Turner JR, Walker ME, Chai Z, Lakshman S, Urban JF, Lichtenstein AH. Western and heart healthy dietary patterns differentially affect the expression of genes associated with lipid metabolism, interferon signaling and inflammation in the jejunum of Ossabaw pigs. J Nutr Biochem 2020; 90:108577. [PMID: 33388349 PMCID: PMC8982565 DOI: 10.1016/j.jnutbio.2020.108577] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 12/09/2020] [Accepted: 12/10/2020] [Indexed: 12/13/2022]
Abstract
Diet quality and statin therapy are established modulators of coronary artery disease (CAD) progression, but their effect on the gastrointestinal tract and subsequent sequelae that could affect CAD progression are relatively unexplored. To address this gap, Ossabaw pigs (N = 32) were randomly assigned to receive isocaloric amounts of a Western-type diet (WD; high in saturated fat, refined carbohydrate, and cholesterol, and low in fiber) or a heart healthy-type diet (HHD; high in unsaturated fat, whole grains, fruits and vegetables, supplemented with fish oil, and low in cholesterol), with or without atorvastatin, for 6 months. At the end of the study, RNA sequencing with 100 base pair single end reads on NextSeq 500 platform was conducted in isolated pig jejunal mucosa. A two-factor edgeR analysis revealed that the dietary patterns resulted in three differentially expressed genes related to lipid metabolism (SCD, FADS1, and SQLE). The expression of these genes was associated with cardiometabolic risk factors and atherosclerotic lesion severity. Subsequent gene enrichment analysis indicated the WD, compared to the HHD, resulted in higher interferon signaling and inflammation, with some of these genes being significantly associated with serum TNF-α and/or hsCRP concentrations, but not atherosclerotic lesion severity. No significant effect of atorvastatin therapy on gene expression, nor its interaction with dietary patterns, was identified. In conclusion, Western and heart healthy-type dietary patterns differentially affect the expression of genes associated with lipid metabolism, interferon signaling, and inflammation in the jejunum of Ossabaw pigs.
Collapse
Affiliation(s)
- Shumao Ye
- Cardiovascular Nutrition Laboratory, Jean Mayer USDA Human Nutrition Research Center on Aging; Friedman School of Nutrition Science and Policy, Tufts University, Boston, MA, USA
| | - Nirupa R Matthan
- Cardiovascular Nutrition Laboratory, Jean Mayer USDA Human Nutrition Research Center on Aging; Friedman School of Nutrition Science and Policy, Tufts University, Boston, MA, USA
| | - Stefania Lamon-Fava
- Cardiovascular Nutrition Laboratory, Jean Mayer USDA Human Nutrition Research Center on Aging; Friedman School of Nutrition Science and Policy, Tufts University, Boston, MA, USA
| | - Gloria Solano Aguilar
- USDA, ARS, Beltsville Human Nutrition Research Center, Diet Genomics and Immunology Laboratory, Beltsville, MD, USA
| | - Jerrold R Turner
- Laboratory of Mucosal Barrier Pathobiology, Department of Pathology, Brigham and Woman's Hospital and Harvard Medical School, Boston, MA, USA
| | - Maura E Walker
- Section of Preventive Medicine and Epidemiology, Boston University School of Medicine, Boston, MA, USA
| | - Zhi Chai
- Intercollege Graduate Degree Program in Physiology, Department of Nutritional Science, Pennsylvania State University, University Park, PA, USA
| | - Sukla Lakshman
- USDA, ARS, Beltsville Human Nutrition Research Center, Diet Genomics and Immunology Laboratory, Beltsville, MD, USA
| | - Joseph F Urban
- USDA, ARS, Beltsville Human Nutrition Research Center, Diet Genomics and Immunology Laboratory, Beltsville, MD, USA
| | - Alice H Lichtenstein
- Cardiovascular Nutrition Laboratory, Jean Mayer USDA Human Nutrition Research Center on Aging; Friedman School of Nutrition Science and Policy, Tufts University, Boston, MA, USA.
| |
Collapse
|
46
|
Olichwier A, Balatskyi VV, Wolosiewicz M, Ntambi JM, Dobrzyn P. Interplay between Thyroid Hormones and Stearoyl-CoA Desaturase 1 in the Regulation of Lipid Metabolism in the Heart. Int J Mol Sci 2020; 22:ijms22010109. [PMID: 33374300 PMCID: PMC7796080 DOI: 10.3390/ijms22010109] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Revised: 12/17/2020] [Accepted: 12/21/2020] [Indexed: 12/19/2022] Open
Abstract
Stearoyl-CoA desaturase 1 (SCD1), an enzyme that is involved in the biosynthesis of monounsaturated fatty acids, induces the reprogramming of cardiomyocyte metabolism. Thyroid hormones (THs) activate both lipolysis and lipogenesis. Many genes that are involved in lipid metabolism, including Scd1, are regulated by THs. The present study used SCD1 knockout (SCD1−/−) mice to test the hypothesis that THs are important factors that mediate the anti-steatotic effect of SCD1 downregulation in the heart. SCD1 deficiency decreased plasma levels of thyroid-stimulating hormone and thyroxine and the expression of genes that regulate intracellular TH levels (i.e., Slc16a2 and Dio1-3) in cardiomyocytes. Both hypothyroidism and SCD1 deficiency affected genomic and non-genomic TH pathways in the heart. SCD1 deficiency is known to protect mice from genetic- or diet-induced obesity and decrease lipid content in the heart. Interestingly, hypothyroidism increased body adiposity and triglyceride and diacylglycerol levels in the heart in SCD1−/− mice. The accumulation of triglycerides in cardiomyocytes in SCD1−/− hypothyroid mice was caused by the activation of lipogenesis, which likely exceeded the upregulation of lipolysis and fatty acid oxidation. Lipid accumulation was also observed in the heart in wildtype hypothyroid mice compared with wildtype control mice, but this process was related to a reduction of triglyceride lipolysis and fatty acid oxidation. We also found that simultaneous SCD1 and deiodinase inhibition increased triglyceride content in HL-1 cardiomyocytes, and this process was related to the downregulation of lipolysis. Altogether, the present results suggest that THs are an important part of the mechanism of SCD1 in cardiac lipid utilization and may be involved in the upregulation of energetic metabolism that is associated with SCD1 deficiency.
Collapse
Affiliation(s)
- Adam Olichwier
- Laboratory of Molecular Medical Biochemistry, Nencki Institute of Experimental Biology, Polish Academy of Sciences, 02-093 Warsaw, Poland; (A.O.); (V.V.B.); (M.W.)
| | - Volodymyr V. Balatskyi
- Laboratory of Molecular Medical Biochemistry, Nencki Institute of Experimental Biology, Polish Academy of Sciences, 02-093 Warsaw, Poland; (A.O.); (V.V.B.); (M.W.)
| | - Marcin Wolosiewicz
- Laboratory of Molecular Medical Biochemistry, Nencki Institute of Experimental Biology, Polish Academy of Sciences, 02-093 Warsaw, Poland; (A.O.); (V.V.B.); (M.W.)
| | - James M. Ntambi
- Department of Biochemistry, University of Wisconsin-Madison, Madison, WI 53706, USA;
- Department of Nutritional Sciences, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Pawel Dobrzyn
- Laboratory of Molecular Medical Biochemistry, Nencki Institute of Experimental Biology, Polish Academy of Sciences, 02-093 Warsaw, Poland; (A.O.); (V.V.B.); (M.W.)
- Correspondence:
| |
Collapse
|
47
|
Piccinin E, Cariello M, Moschetta A. Lipid metabolism in colon cancer: Role of Liver X Receptor (LXR) and Stearoyl-CoA Desaturase 1 (SCD1). Mol Aspects Med 2020; 78:100933. [PMID: 33218679 DOI: 10.1016/j.mam.2020.100933] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 11/01/2020] [Accepted: 11/09/2020] [Indexed: 02/07/2023]
Abstract
Colorectal cancer (CRC) is one of the most commonly occurring cancers worldwide. Although several genetic alterations have been associated with CRC onset and progression, nowadays the reprogramming of cellular metabolism has been recognized as a fundamental step of the carcinogenic process. Intestinal tumor cells frequently display an aberrant activation of lipid metabolism. Indeed, to satisfy the growing needs of a continuous proliferation, cancer cells can either increase the uptake of exogenous lipids or upregulate the endogenous lipogenesis and cholesterol synthesis. Therefore, strategies aimed at limiting lipid accumulation are now under development in order to counteract malignancies. Two major players of lipids metabolism have been so far identified for their contribution to CRC development: the nuclear receptor Liver X Receptor (LXRs) and the enzyme Stearoyl-CoA Desaturase 1 (SCD1). Whereas LXR is mainly recognized for its role as a cholesterol sensor, finally promoting the loss of cellular cholesterol and whole-body homeostasis, SCD1 acts as the major regulator of new fatty acids, finely tuning the monounsaturated fatty acids (MUFA) to saturated fatty acids (SFA) ratio. Intriguingly, SCD1 is directly regulated by LXRs. Despite LXRs agonists have elicited great interest as a promising therapeutic target for cancer, LXR's ability to induce SCD1 and new fatty acids synthesis represent a major obstacle in the development of new effective treatments. Thus, further investigations are required to fully dissect the concomitant modulation of both players, to develop specific therapies aimed at blocking intestinal cancer cells proliferation, eventually counteracting CRC progression.
Collapse
Affiliation(s)
- Elena Piccinin
- Department of Interdisciplinary Medicine, University of Bari "Aldo Moro", Bari, Italy; Department of Basic Medical Sciences, Neurosciences and Sense Organs, University of Bari "Aldo Moro", Bari, Italy
| | - Marica Cariello
- Department of Interdisciplinary Medicine, University of Bari "Aldo Moro", Bari, Italy; INBB, National Institute for Biostructures and Biosystems, Rome, Italy
| | - Antonio Moschetta
- Department of Interdisciplinary Medicine, University of Bari "Aldo Moro", Bari, Italy; INBB, National Institute for Biostructures and Biosystems, Rome, Italy; National Cancer Center, IRCCS Istituto Tumori Giovanni Paolo II, Bari, Italy.
| |
Collapse
|
48
|
Petersen KS, Bowen KJ, Tindall AM, Sullivan VK, Johnston EA, Fleming JA, Kris-Etherton PM. The Effect of Inflammation and Insulin Resistance on Lipid and Lipoprotein Responsiveness to Dietary Intervention. Curr Dev Nutr 2020; 4:nzaa160. [PMID: 33447695 PMCID: PMC7792751 DOI: 10.1093/cdn/nzaa160] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 10/02/2020] [Accepted: 10/13/2020] [Indexed: 12/14/2022] Open
Abstract
Lipids and lipoproteins are major targets for cardiovascular disease (CVD) prevention. Findings from a limited number of clinical trials suggest diet-induced atherogenic lipoprotein lowering can be altered in the presence of chronic low-grade inflammation or insulin resistance. This review summarizes results from randomized controlled trials that have examined diet-induced changes in lipids/lipoproteins by inflammatory or insulin sensitivity status. In addition, mechanisms to explain these clinical observations are explored. Post hoc analyses of data from a limited number of randomized controlled trials suggest attenuation of diet-induced lipid/lipoprotein lowering in individuals with inflammation and/or insulin resistance. These findings are supported by experimental studies showing that inflammatory stimuli and hyperinsulinemia alter genes involved in endogenous cholesterol synthesis and cholesterol uptake, reduce cholesterol efflux, and increase fatty acid biosynthesis. Further a priori defined research is required to better characterize how chronic low-grade inflammation and insulin resistance modulate lipid and lipoprotein responsiveness to guide CVD risk reduction in individuals presenting with these phenotypes.
Collapse
Affiliation(s)
- Kristina S Petersen
- Department of Nutritional Sciences, Texas Tech University, Lubbock, TX, USA
- Department of Nutritional Sciences, The Pennsylvania State University, University Park, PA, USA
| | - Kate J Bowen
- Department of Nutritional Sciences, The Pennsylvania State University, University Park, PA, USA
| | - Alyssa M Tindall
- Department of Nutritional Sciences, The Pennsylvania State University, University Park, PA, USA
| | - Valerie K Sullivan
- Department of Nutritional Sciences, The Pennsylvania State University, University Park, PA, USA
| | - Emily A Johnston
- Department of Nutritional Sciences, The Pennsylvania State University, University Park, PA, USA
| | - Jennifer A Fleming
- Department of Nutritional Sciences, The Pennsylvania State University, University Park, PA, USA
| | - Penny M Kris-Etherton
- Department of Nutritional Sciences, The Pennsylvania State University, University Park, PA, USA
| |
Collapse
|
49
|
Ji Z, Shen Y, Feng X, Kong Y, Shao Y, Meng J, Zhang X, Yang G. Deregulation of Lipid Metabolism: The Critical Factors in Ovarian Cancer. Front Oncol 2020; 10:593017. [PMID: 33194756 PMCID: PMC7604390 DOI: 10.3389/fonc.2020.593017] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2020] [Accepted: 09/28/2020] [Indexed: 12/14/2022] Open
Abstract
Ovarian cancer is one of the most malignant gynecological cancers around the world. In spite of multiple treatment options, the five-year survival rate is still very low. Several metabolism alterations are described as a hallmark in cancers, but alterations of lipid metabolism in ovarian cancer have been paid less attention. To explore new markers/targets for accurate diagnosis, prognosis, and therapeutic treatments based on metabolic enzyme inhibitors, here, we reviewed available literature and summarized several key metabolic enzymes in lipid metabolism of ovarian cancer. In this review, the rate limiting enzymes associated with fatty acid synthesis (FASN, ACC, ACLY, SCD), the lipid degradation related enzymes (MAGL, CPT, 5-LO, COX2), and the receptors related to lipid uptake (FABP4, CD36, LDLR), which promote the development of ovarian cancer, were analyzed and evaluated. We also focused on the review of application of current metabolic enzyme inhibitors for the treatment of ovarian cancer through which the potential therapeutic agents may be developed for ovarian cancer therapy.
Collapse
Affiliation(s)
- Zhaodong Ji
- Cancer Institute, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Yan Shen
- Department of Pharmacy, Nantong Health College of Jiangsu Province, Nantong, China
| | - Xu Feng
- Cancer Institute, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Yue Kong
- Cancer Institute, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Yang Shao
- Cancer Institute, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Jiao Meng
- Cancer Institute, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Xiaofei Zhang
- Department of Gynecology, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, China
| | - Gong Yang
- Cancer Institute, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.,Central Laboratory, The Fifth People's Hospital of Shanghai Fudan University, Shanghai, China
| |
Collapse
|
50
|
Siques P, Brito J, Ordenes S, Pena E. Involvement of overweight and lipid metabolism in the development of pulmonary hypertension under conditions of chronic intermittent hypoxia. Pulm Circ 2020; 10:42-49. [PMID: 33110496 PMCID: PMC7557786 DOI: 10.1177/2045894020930626] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Accepted: 05/04/2020] [Indexed: 12/12/2022] Open
Abstract
There is growing evidence that exposure to hypoxia, regardless of the source,
elicits several metabolic responses in individuals. These responses are
constitutive and are usually observed under hypoxia but vary according to the
type of exposure. The aim of this review was to describe the involvement of
obesity and lipid metabolism in the development of high-altitude pulmonary
hypertension and in the development of acute mountain sickness under chronic
intermittent hypoxia. Overweight or obesity, which are common in individuals
with long-term chronic intermittent hypoxia exposure (high-altitude miners,
shift workers, and soldiers), are thought to play a major role in the
development of acute mountain sickness and high-altitude pulmonary hypertension.
This association may be rooted in the interactions between obesity-related
metabolic and physical alterations, such as increased waist circumference and
neck circumference, among others, which lead to critical ventilation
impairments; these impairments aggravate hypoxemia at high altitude, thereby
triggering high-altitude diseases. Overweight and obesity are strongly
associated with higher mean pulmonary artery pressure in the context of
long-term chronic intermittent hypoxia. Remarkably, de novo synthesis of
triglycerides by the sterol regulatory element-binding protein-1c pathway has
been demonstrated, mainly due to the upregulation of stearoyl-CoA desaturase-1,
which is also associated with the same outcomes. Therefore, overweight, obesity,
and other metabolic conditions may hinder proper acclimatization. The involved
mechanisms include respiratory impairment, alteration of the nitric oxide
pathways, inflammatory status, reactive oxygen species imbalance, and other
metabolic changes; however, further studies are required.
Collapse
Affiliation(s)
- Patricia Siques
- Institute of Health Studies, Universidad Arturo Prat, Iquique, Chile.,Institute DECIPHER, German-Chilean Institute for Research on Pulmonary Hypoxia and its Health Sequelae, Iquique (Chile)
| | - Julio Brito
- Institute of Health Studies, Universidad Arturo Prat, Iquique, Chile.,Institute DECIPHER, German-Chilean Institute for Research on Pulmonary Hypoxia and its Health Sequelae, Iquique (Chile)
| | - Stefany Ordenes
- Institute of Health Studies, Universidad Arturo Prat, Iquique, Chile.,Institute DECIPHER, German-Chilean Institute for Research on Pulmonary Hypoxia and its Health Sequelae, Iquique (Chile)
| | - Eduardo Pena
- Institute of Health Studies, Universidad Arturo Prat, Iquique, Chile.,Institute DECIPHER, German-Chilean Institute for Research on Pulmonary Hypoxia and its Health Sequelae, Iquique (Chile)
| |
Collapse
|