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Weeks KL, Kiriazis H, Wadley GD, Masterman EI, Sergienko NM, Raaijmakers AJA, Trewin AJ, Harmawan CA, Yildiz GS, Liu Y, Drew BG, Gregorevic P, Delbridge LMD, McMullen JR, Bernardo BC. A gene therapy targeting medium-chain acyl-CoA dehydrogenase (MCAD) did not protect against diabetes-induced cardiac pathology. J Mol Med (Berl) 2024; 102:95-111. [PMID: 37987775 DOI: 10.1007/s00109-023-02397-2] [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: 03/20/2023] [Revised: 10/31/2023] [Accepted: 11/09/2023] [Indexed: 11/22/2023]
Abstract
Diabetic cardiomyopathy describes heart disease in patients with diabetes who have no other cardiac conditions but have a higher risk of developing heart failure. Specific therapies to treat the diabetic heart are limited. A key mechanism involved in the progression of diabetic cardiomyopathy is dysregulation of cardiac energy metabolism. The aim of this study was to determine if increasing the expression of medium-chain acyl-coenzyme A dehydrogenase (MCAD; encoded by Acadm), a key regulator of fatty acid oxidation, could improve the function of the diabetic heart. Male mice were administered streptozotocin to induce diabetes, which led to diastolic dysfunction 8 weeks post-injection. Mice then received cardiac-selective adeno-associated viral vectors encoding MCAD (rAAV6:MCAD) or control AAV and were followed for 8 weeks. In the non-diabetic heart, rAAV6:MCAD increased MCAD expression (mRNA and protein) and increased Acadl and Acadvl, but an increase in MCAD enzyme activity was not detectable. rAAV6:MCAD delivery in the diabetic heart increased MCAD mRNA expression but did not significantly increase protein, activity, or improve diabetes-induced cardiac pathology or molecular metabolic and lipid markers. The uptake of AAV viral vectors was reduced in the diabetic versus non-diabetic heart, which may have implications for the translation of AAV therapies into the clinic. KEY MESSAGES: The effects of increasing MCAD in the diabetic heart are unknown. Delivery of rAAV6:MCAD increased MCAD mRNA and protein, but not enzyme activity, in the non-diabetic heart. Independent of MCAD enzyme activity, rAAV6:MCAD increased Acadl and Acadvl in the non-diabetic heart. Increasing MCAD cardiac gene expression alone was not sufficient to protect against diabetes-induced cardiac pathology. AAV transduction efficiency was reduced in the diabetic heart, which has clinical implications.
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Affiliation(s)
- Kate L Weeks
- Department of Anatomy and Physiology, University of Melbourne, Parkville, VIC, 3010, Australia
- Department of Cardiometabolic Health, University of Melbourne, Parkville, VIC, 3010, Australia
- Department of Diabetes, Central Clinical School, Monash University, Clayton, VIC, 3800, Australia
| | - Helen Kiriazis
- Department of Cardiometabolic Health, University of Melbourne, Parkville, VIC, 3010, Australia
- Baker Heart and Diabetes Institute, PO Box 6492, Melbourne, VIC, 3004, Australia
| | - Glenn D Wadley
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Burwood, VIC, 3125, Australia
| | - Emma I Masterman
- Baker Heart and Diabetes Institute, PO Box 6492, Melbourne, VIC, 3004, Australia
| | - Nicola M Sergienko
- Department of Diabetes, Central Clinical School, Monash University, Clayton, VIC, 3800, Australia
- Baker Heart and Diabetes Institute, PO Box 6492, Melbourne, VIC, 3004, Australia
| | - Antonia J A Raaijmakers
- Department of Anatomy and Physiology, University of Melbourne, Parkville, VIC, 3010, Australia
| | - Adam J Trewin
- Department of Anatomy and Physiology, University of Melbourne, Parkville, VIC, 3010, Australia
| | - Claudia A Harmawan
- Baker Heart and Diabetes Institute, PO Box 6492, Melbourne, VIC, 3004, Australia
| | - Gunes S Yildiz
- Baker Heart and Diabetes Institute, PO Box 6492, Melbourne, VIC, 3004, Australia
| | - Yingying Liu
- Baker Heart and Diabetes Institute, PO Box 6492, Melbourne, VIC, 3004, Australia
| | - Brian G Drew
- Department of Cardiometabolic Health, University of Melbourne, Parkville, VIC, 3010, Australia
- Department of Diabetes, Central Clinical School, Monash University, Clayton, VIC, 3800, Australia
- Baker Heart and Diabetes Institute, PO Box 6492, Melbourne, VIC, 3004, Australia
| | - Paul Gregorevic
- Department of Anatomy and Physiology, University of Melbourne, Parkville, VIC, 3010, Australia
- Centre for Muscle Research, University of Melbourne, Parkville, VIC, 3010, Australia
- Department of Biochemistry and Molecular Biology, Monash University, Melbourne, VIC, 3800, Australia
- Department of Neurology, University of Washington School of Medicine, Seattle, WA, 98195, USA
| | - Lea M D Delbridge
- Department of Anatomy and Physiology, University of Melbourne, Parkville, VIC, 3010, Australia
| | - Julie R McMullen
- Department of Cardiometabolic Health, University of Melbourne, Parkville, VIC, 3010, Australia
- Department of Diabetes, Central Clinical School, Monash University, Clayton, VIC, 3800, Australia
- Baker Heart and Diabetes Institute, PO Box 6492, Melbourne, VIC, 3004, Australia
- Department of Physiology, Anatomy and Microbiology, La Trobe University, Melbourne, VIC, 3086, Australia
| | - Bianca C Bernardo
- Department of Diabetes, Central Clinical School, Monash University, Clayton, VIC, 3800, Australia.
- Baker Heart and Diabetes Institute, PO Box 6492, Melbourne, VIC, 3004, Australia.
- Department of Paediatrics, University of Melbourne, Parkville, VIC, 3010, Australia.
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Zhao M, Zhang Z, Liu Y, Zhang W, Gong Y, Tang Y, Chen F, Zhang J, Liu G, Zhang H, Li Y, Mai K, Ai Q. Effects of supplemental octanoate on hepatic lipid metabolism, serum biochemical indexes, antioxidant capacity and inflammation-related genes expression of large yellow croaker (Larimichthys crocea) fed with high soybean oil diet. Front Immunol 2023; 14:1162633. [PMID: 37051230 PMCID: PMC10083288 DOI: 10.3389/fimmu.2023.1162633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Accepted: 03/13/2023] [Indexed: 03/28/2023] Open
Abstract
Dietary high soybean oil (SO) levels might cause hepatic lipid deposition, induce oxidative stress and inflammatory response in aquatic animals, while octanoate (OCT) is beneficial to metabolism and health in mammals. However, the effect of OCT has been studied rarely in aquatic animals. In this study, a 10-week feeding trial was conducted to investigate the effect of supplemental OCT on hepatic lipid metabolism, serum biochemical indexes, antioxidant capacity and inflammatory response of large yellow croaker (Larimichthys crocea) fed with high SO levels diet. The negative control diet contained 7% fish oil (FO), while the positive control diet contained 7% SO. The other four experimental diets were supplemented with 0.7, 2.1, 6.3 and 18.9 g/kg sodium octanoate (OCT) based on the positive control diet. Results showed that OCT supplementation effectively reduced the hepatic crude lipid, triglyceride (TG), total cholesterol (TC) and non-esterified free fatty acids contents, and alleviated lipid accumulation caused by the SO diet. Meanwhile, OCT supplementation decreased the serum TG, TC, alanine transaminase, aspartate transaminase and low-density lipoprotein cholesterol levels, increased the serum high-density lipoprotein cholesterol level, improved the serum lipid profiles and alleviated hepatic injury. Furthermore, with the supplementation of OCT, the mRNA expression of genes related to lipogenesis (acc1, scd1, fas, srebp1, dgat1 and cebpα) and fatty acid (FA) transport (fabp3, fatp and cd36) were down-regulated, while the mRNA expression of genes related to lipolysis (atgl, hsl and lpl) and FA β-oxidation (cpt1 and mcad) were up-regulated. Besides that, dietary OCT increased the total antioxidant capacity, activities of peroxidase, catalase and superoxide dismutase and the content of reduced glutathione, decreased the content of 8-hydroxy-deoxyguanosine and malondialdehyde and relieved hepatic oxidative stress. Supplementation of 0.7 and 2.1 g/kg OCT down-regulated the mRNA expression of genes related to pro-inflammatory cytokines (tnfα, il1β and ifnγ), and suppressed hepatic inflammatory response. In conclusion, supplementation with 0.7-2.1 g/kg OCT could reduce hepatic lipid accumulation, relieve oxidative stress and regulate inflammatory response in large yellow croaker fed the diet with high SO levels, providing a new way to alleviate the hepatic fat deposition in aquatic animals.
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Zhou H, Xia C, Yang Y, Warusawitharana HK, Liu X, Tu Y. The Prevention Role of Theaflavin-3,3′-digallate in Angiotensin II Induced Pathological Cardiac Hypertrophy via CaN-NFAT Signal Pathway. Nutrients 2022; 14:nu14071391. [PMID: 35406003 PMCID: PMC9003418 DOI: 10.3390/nu14071391] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 03/24/2022] [Accepted: 03/24/2022] [Indexed: 02/07/2023] Open
Abstract
Theaflavin-3,3′-digallate (TF3) is a representative theaflavin of black tea and is remarkable for the anti-coronary heart disease effect. As an adaptive response to heart failure, pathological cardiac hypertrophy (PCH) has attracted great interest. In this study, the PCH cell model was established with H9c2 cells by angiotensin II, and the prevention effect and mechanisms of TF3 were investigated. The results showed that the cell size and fetal gene mRNA level were significantly reduced as pretreated with TF3 at the concentration range of 1–10 μM, also the balance of the redox system was recovered by TF3 at the concentration of 10 μM. The intracellular Ca2+ level decreased, Calcineurin (CaN) expression was down-regulated and the p-NFATc3 expression was up-regulated. These results indicated that TF3 could inhibit the activation of the CaN-NFAT signal pathway to prevent PCH, and TF3 may be a potentially effective natural compound for PCH and heart failure.
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Affiliation(s)
- Hui Zhou
- Department of Tea Science, Zhejiang University, Hangzhou 310058, China; (H.Z.); (C.X.); (Y.Y.); (H.K.W.)
| | - Chen Xia
- Department of Tea Science, Zhejiang University, Hangzhou 310058, China; (H.Z.); (C.X.); (Y.Y.); (H.K.W.)
| | - Yaqing Yang
- Department of Tea Science, Zhejiang University, Hangzhou 310058, China; (H.Z.); (C.X.); (Y.Y.); (H.K.W.)
| | | | - Xiaohui Liu
- College of Tea Science, Yunnan Agricultural University, Kunming 650201, China
- Correspondence: (X.L.); (Y.T.); Tel.: +86-571-88982743 (Y.T.)
| | - Youying Tu
- Department of Tea Science, Zhejiang University, Hangzhou 310058, China; (H.Z.); (C.X.); (Y.Y.); (H.K.W.)
- Correspondence: (X.L.); (Y.T.); Tel.: +86-571-88982743 (Y.T.)
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JIAN L, GUO J, ZHANG Y, LIU J, LIU Y, XU J. Using integrated GC-MS analysis, in vitro experiments, network pharmacology: exploring migao fatty oil active components/mechanisms against coronary heart disease. FOOD SCIENCE AND TECHNOLOGY 2022. [DOI: 10.1590/fst.89322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Lina JIAN
- Guizhou University of Traditional Chinese Medicine, China
| | - Jiangtao GUO
- Guizhou University of Traditional Chinese Medicine, China
| | - Yongping ZHANG
- Guizhou University of Traditional Chinese Medicine, China; National Engineering Research Center of Miao's Medicines, China; Guizhou Chinese Medicine Processing and Preparation Engineering Technology Research Center, China
| | - Jie LIU
- Guizhou University of Traditional Chinese Medicine, China; National Engineering Research Center of Miao's Medicines, China; Guizhou Chinese Medicine Processing and Preparation Engineering Technology Research Center, China
| | - Yao LIU
- Guizhou University of Traditional Chinese Medicine, China
| | - Jian XU
- Guizhou University of Traditional Chinese Medicine, China; National Engineering Research Center of Miao's Medicines, China; Guizhou Chinese Medicine Processing and Preparation Engineering Technology Research Center, China
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