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Lazaro CM, Freitas IN, Nunes VS, Guizoni DM, Victorio JA, Oliveira HCF, Davel AP. Sex-Specific Effects of Cholesteryl Ester Transfer Protein (CETP) on the Perivascular Adipose Tissue. FUNCTION 2024; 5:zqae024. [PMID: 38984977 DOI: 10.1093/function/zqae024] [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: 01/16/2024] [Revised: 05/08/2024] [Accepted: 05/13/2024] [Indexed: 07/11/2024] Open
Abstract
Cholesteryl ester transfer protein (CETP) increases the atherosclerosis risk by lowering HDL-cholesterol levels. It also exhibits tissue-specific effects independent of HDL. However, sexual dimorphism of CETP effects remains largely unexplored. Here, we hypothesized that CETP impacts the perivascular adipose tissue (PVAT) phenotype and function in a sex-specific manner. PVAT function, gene and protein expression, and morphology were examined in male and female transgenic mice expressing human or simian CETP and their non-transgenic counterparts (NTg). PVAT exerted its anticontractile effect in aortas from NTg males, NTg females, and CETP females, but not in CETP males. CETP male PVAT had reduced NO levels, decreased eNOS and phospho-eNOS levels, oxidative stress, increased NOX1 and 2, and decreased SOD2 and 3 expressions. In contrast, CETP-expressing female PVAT displayed increased NO and phospho-eNOS levels with unchanged NOX expression. NOX inhibition and the antioxidant tempol restored PVAT anticontractile function in CETP males. Ex vivo estrogen treatment also restored PVAT function in CETP males. Moreover, CETP males, but not female PVAT, show increased inflammatory markers. PVAT lipid content increased in CETP males but decreased in CETP females, while PVAT cholesterol content increased in CETP females. CETP male PVAT exhibited elevated leptin and reduced Prdm16 (brown adipocyte marker) expression. These findings highlight CETP sex-specific impact on PVAT. In males, CETP impaired PVAT anticontractile function, accompanied by oxidative stress, inflammation, and whitening. Conversely, in females, CETP expression increased NO levels, induced an anti-inflammatory phenotype, and preserved the anticontractile function. This study reveals sex-specific vascular dysfunction mediated by CETP.
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Affiliation(s)
- C M Lazaro
- Departamento de Biologia Estrutural e Funcional, Instituto de Biologia, Universidade Estadual de Campinas (UNICAMP), CEP 13083-862, Campinas, SP, Brazil
| | - I N Freitas
- Departamento de Biologia Estrutural e Funcional, Instituto de Biologia, Universidade Estadual de Campinas (UNICAMP), CEP 13083-862, Campinas, SP, Brazil
| | - V S Nunes
- Laboratório de Lípides (LIM10), Hospital das Clínicas (HCFMUSP) da Faculdade de Medicina da Universidade de São Paulo, CEP 01246-903, São Paulo, SP, Brazil
| | - D M Guizoni
- Obesity and Comorbidities Research Center, Universidade Estadual de Campinas (UNICAMP), CEP 13083-864, Campinas, SP, Brazil
| | - J A Victorio
- Laboratory of Female Vascular Biology, Departamento de Ciências Fisiológicas, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina (UFSC), CEP 88037-000, Santa Catarina, SC, Brazil
| | - H C F Oliveira
- Departamento de Biologia Estrutural e Funcional, Instituto de Biologia, Universidade Estadual de Campinas (UNICAMP), CEP 13083-862, Campinas, SP, Brazil
- Obesity and Comorbidities Research Center, Universidade Estadual de Campinas (UNICAMP), CEP 13083-864, Campinas, SP, Brazil
| | - A P Davel
- Departamento de Biologia Estrutural e Funcional, Instituto de Biologia, Universidade Estadual de Campinas (UNICAMP), CEP 13083-862, Campinas, SP, Brazil
- Obesity and Comorbidities Research Center, Universidade Estadual de Campinas (UNICAMP), CEP 13083-864, Campinas, SP, Brazil
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Dabravolski S, Orekhov NA, Melnichenko A, Sukhorukov VN, Popov MA, Orekhov A. Cholesteryl Ester Transfer Protein (CETP) Variations in Relation to Lipid Profiles and Cardiovascular Diseases: An Update. Curr Pharm Des 2024; 30:742-756. [PMID: 38425105 DOI: 10.2174/0113816128284695240219093612] [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: 10/26/2023] [Revised: 01/02/2024] [Accepted: 01/11/2024] [Indexed: 03/02/2024]
Abstract
Lipid metabolism plays an essential role in the pathogenesis of cardiovascular and metabolic diseases. Cholesteryl ester transfer protein (CETP) is a crucial glycoprotein involved in lipid metabolism by transferring cholesteryl esters (CE) and triglycerides (TG) between plasma lipoproteins. CETP activity results in reduced HDL-C and increased VLDL- and LDL-C concentrations, thus increasing the risk of cardiovascular and metabolic diseases. In this review, we discuss the structure of CETP and its mechanism of action. Furthermore, we focus on recent experiments on animal CETP-expressing models, deciphering the regulation and functions of CETP in various genetic backgrounds and interaction with different external factors. Finally, we discuss recent publications revealing the association of CETP single nucleotide polymorphisms (SNPs) with the risk of cardiovascular and metabolic diseases, lifestyle factors, diet and therapeutic interventions. While CETP SNPs can be used as effective diagnostic markers, diet, lifestyle, gender and ethnic specificity should also be considered for effective treatment.
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Affiliation(s)
- Siarhei Dabravolski
- Department of Biotechnology Engineering, ORT Braude College, Braude Academic College of Engineering, Karmiel, Israel
| | - Nikolay A Orekhov
- Laboratory of Angiopatology, Research Institute of General Pathology and Pathophysiology, The Russian Academy of Medical Sciences, Moscow, Russian Federation
| | - Alexandra Melnichenko
- Laboratory of Angiopatology, Research Institute of General Pathology and Pathophysiology, The Russian Academy of Medical Sciences, Moscow, Russian Federation
| | - Vasily N Sukhorukov
- Laboratory of Angiopatology, Research Institute of General Pathology and Pathophysiology, The Russian Academy of Medical Sciences, Moscow, Russian Federation
| | - Mikhail A Popov
- Laboratory of Angiopatology, Research Institute of General Pathology and Pathophysiology, The Russian Academy of Medical Sciences, Moscow, Russian Federation
| | - Alexander Orekhov
- Laboratory of Angiopatology, Research Institute of General Pathology and Pathophysiology, The Russian Academy of Medical Sciences, Moscow, Russian Federation
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Kim M, Lee S, Cho E, Hong KW, You SJ, Choi HJ. CETP and APOA2 polymorphisms are associated with weight loss and healthy eating behavior changes in response to digital lifestyle modifications. Sci Rep 2023; 13:21615. [PMID: 38062157 PMCID: PMC10703771 DOI: 10.1038/s41598-023-48823-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Accepted: 11/30/2023] [Indexed: 12/18/2023] Open
Abstract
Response to digital healthcare lifestyle modifications is highly divergent. This study aimed to examine the association between single nucleotide polymorphism (SNP) genotypes and clinical efficacy of a digital healthcare lifestyle modification. We genotyped 97 obesity-related SNPs from 45 participants aged 18-39 years, who underwent lifestyle modification via digital cognitive behavioral therapy for obesity for 8 weeks. Anthropometric, eating behavior phenotypes, and psychological measures were analyzed before and after the intervention to identify their clinical efficacy. CETP (rs9939224) SNP significantly predict "super-responders" with greater body mass index (BMI) reduction (p = 0.028; GG - 2.91%, GT - 9.94%), while APOA2 (rs5082) appeared to have some potential for predicting "poor-responders" with lower BMI reduction (p = 0.005; AA - 6.17%, AG + 2.05%, and GG + 5.11%). These SNPs was also associated with significant differences in eating behavior changes, healthy diet proportions, health diet diversity, emotional and restrained eating behavior changes. Furthermore, classification using gene-gene interactions between rs9939224 and rs5082 significantly predicted the best response, with a greater decrease in BMI (p = 0.038; - 11.45% for the best response group (CEPT GT/TT × APOA2 AA) vs. + 2.62% for the worst response group (CEPT GG × APOA2 AG/GG)). CETP and APOA2 SNPs can be used as candidate markers to predict the efficacy of digital healthcare lifestyle modifications based on genotype-based precision medicine.Trial registration: NCT03465306, ClinicalTrials.gov. Registered March, 2018.
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Affiliation(s)
- Meelim Kim
- Department of Biomedical Science, Seoul National University College of Medicine, 28 Yungun-Dong, Chongno-Gu, Seoul, 110-799, Korea
- Herbert Wertheim School of Public Health and Human Longevity Science, University of California, San Diego, La Jolla, CA, USA
- Center for Wireless and Population Health Systems, Calit2's Qualcomm Institute, University of California, San Diego, La Jolla, CA, USA
- The Design Lab, University of California, San Diego, La Jolla, CA, USA
| | - Seolha Lee
- Department of Biomedical Science, Seoul National University College of Medicine, 28 Yungun-Dong, Chongno-Gu, Seoul, 110-799, Korea
- Department of Global Medical Science, Sungshin Women's University, Seoul, Korea
| | - Eun Cho
- Department of Biomedical Science, Seoul National University College of Medicine, 28 Yungun-Dong, Chongno-Gu, Seoul, 110-799, Korea
| | | | | | - Hyung Jin Choi
- Department of Biomedical Science, Seoul National University College of Medicine, 28 Yungun-Dong, Chongno-Gu, Seoul, 110-799, Korea.
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Kontush A, Martin M, Brites F. Sweet swell of burning fat: emerging role of high-density lipoprotein in energy homeostasis. Curr Opin Lipidol 2023; 34:235-242. [PMID: 37797204 DOI: 10.1097/mol.0000000000000904] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/07/2023]
Abstract
PURPOSE OF REVIEW Metabolism of lipids and lipoproteins, including high-density lipoprotein (HDL), plays a central role in energy homeostasis. Mechanisms underlying the relationship between energy homeostasis and HDL however remain poorly studied. RECENT FINDINGS Available evidence reveals that HDL is implicated in energy homeostasis. Circulating high-density lipoprotein-cholesterol (HDL-C) levels are affected by energy production, raising with increasing resting metabolic rate. Lipolysis of triglycerides as a source of energy decreases plasma levels of remnant cholesterol, increases levels of HDL-C, and can be cardioprotective. Switch to preferential energy production from carbohydrates exerts opposite effects. SUMMARY Low HDL-C may represent a biomarker of inefficient energy production from fats. HDL-C-raising can be beneficial when it reflects enhanced energy production from burning fat.
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Affiliation(s)
- Anatol Kontush
- Sorbonne University, INSERM, Institute of Cardiometabolism and Nutrition (ICAN), UMR_S 1166, Paris, France
| | - Maximiliano Martin
- Laboratory of Lipids and Atherosclerosis, Department of Clinical Biochemistry, INFIBIOC, University of Buenos Aires. CONICET, Buenos Aires, Argentina
| | - Fernando Brites
- Laboratory of Lipids and Atherosclerosis, Department of Clinical Biochemistry, INFIBIOC, University of Buenos Aires. CONICET, Buenos Aires, Argentina
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Jiang J, Liu Y, Wang A, Zhuo Z, Shi H, Zhang X, Li W, Sun M, Jiang S, Wang Y, Zou X, Zhang Y, Jia Z, Xu J. Development and validation of a nutrition-related genetic-clinical-radiological nomogram associated with behavioral and psychological symptoms in Alzheimer's disease. Chin Med J (Engl) 2023:00029330-990000000-00878. [PMID: 38031345 DOI: 10.1097/cm9.0000000000002914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Indexed: 12/01/2023] Open
Abstract
BACKGROUND Few evidence is available in the early prediction models of behavioral and psychological symptoms of dementia (BPSD) in Alzheimer's disease (AD). This study aimed to develop and validate a novel genetic-clinical-radiological nomogram for evaluating BPSD in patients with AD and explore its underlying nutritional mechanism. METHODS This retrospective study included 165 patients with AD from the Chinese Imaging, Biomarkers, and Lifestyle (CIBL) cohort between June 1, 2021, and March 31, 2022. Data on demoimagedatas, neuropsychological assessments, single-nucleotide polymorphisms of AD risk genes, and regional brain volumes were collected. A multivariate logistic regression model identified BPSD-associated factors, for subsequently constructing a diagnostic nomogram. This nomogram was internally validated through 1000-bootstrap resampling and externally validated using a time-series split based on the CIBL cohort data between June 1, 2022, and February 1, 2023. Area under receiver operating characteristic (ROC) curves, calibration curves, and decision curve analysis (DCA) were used to assess the discrimination, calibration, and clinical applicability of the nomogram. RESULTS Factors independently associated with BPSD were: CETP rs1800775 (odds ratio [OR] = 4.137, 95% confidence interval [CI]: 1.276-13.415, P = 0.018), decreased Mini Nutritional Assessment score (OR = 0.187, 95% CI: 0.086-0.405, P <0.001), increased caregiver burden inventory score (OR = 8.993, 95% CI: 3.830-21.119, P <0.001), and decreased brain stem volume (OR = 0.006, 95% CI: 0.001-0.191, P = 0.004). These variables were incorporated into the nomogram. The area under the ROC curve was 0.925 (95% CI: 0.884-0.967, P <0.001) in the internal validation and 0.791 (95% CI: 0.686-0.895, P <0.001) in the external validation. The calibration plots showed favorable consistency between the prediction of nomogram and actual observations, and the DCA showed that the model was clinically useful in both validations. CONCLUSION A novel nomogram was established and validated based on lipid metabolism-related genes, nutritional status, and brain stem volumes, which may allow patients with AD to benefit from early triage and more intensive monitoring of BPSD. REGISTRATION Chictr.org.cn, ChiCTR2100049131.
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Affiliation(s)
- Jiwei Jiang
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, China
- National Clinical Research Center for Neurological Diseases, Beijing 100070, China
| | - Yaou Liu
- National Clinical Research Center for Neurological Diseases, Beijing 100070, China
- Department of Radiology, Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, China
| | - Anxin Wang
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, China
- National Clinical Research Center for Neurological Diseases, Beijing 100070, China
| | - Zhizheng Zhuo
- National Clinical Research Center for Neurological Diseases, Beijing 100070, China
- Department of Radiology, Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, China
| | - Hanping Shi
- Department of Gastrointestinal Surgery, Beijing Shijitan Hospital, Capital Medical University, Beijing 100038, China
- Department of Clinical Nutrition, Beijing Shijitan Hospital, Capital Medical University, Beijing 100038, China
- Beijing International Science and Technology Cooperation Base for Cancer Metabolism and Nutrition, Beijing 100081, China
| | - Xiaoli Zhang
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, China
- National Clinical Research Center for Neurological Diseases, Beijing 100070, China
| | - Wenyi Li
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, China
- National Clinical Research Center for Neurological Diseases, Beijing 100070, China
| | - Mengfan Sun
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, China
- National Clinical Research Center for Neurological Diseases, Beijing 100070, China
| | - Shirui Jiang
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, China
- National Clinical Research Center for Neurological Diseases, Beijing 100070, China
| | - Yanli Wang
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, China
- National Clinical Research Center for Neurological Diseases, Beijing 100070, China
| | - Xinying Zou
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, China
- National Clinical Research Center for Neurological Diseases, Beijing 100070, China
| | - Yuan Zhang
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, China
- National Clinical Research Center for Neurological Diseases, Beijing 100070, China
| | - Ziyan Jia
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, China
- National Clinical Research Center for Neurological Diseases, Beijing 100070, China
| | - Jun Xu
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, China
- National Clinical Research Center for Neurological Diseases, Beijing 100070, China
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Rentz T, Dorighello GG, dos Santos RR, Barreto LM, Freitas IN, Lazaro CM, Razolli DS, Cazita PM, Oliveira HCF. CETP Expression in Bone-Marrow-Derived Cells Reduces the Inflammatory Features of Atherosclerosis in Hypercholesterolemic Mice. Biomolecules 2023; 13:1556. [PMID: 37892238 PMCID: PMC10605246 DOI: 10.3390/biom13101556] [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: 09/04/2023] [Revised: 10/13/2023] [Accepted: 10/17/2023] [Indexed: 10/29/2023] Open
Abstract
CETP activity reduces plasma HDL-cholesterol concentrations, a correlate of an increased risk of atherosclerotic events. However, our recent findings suggest that CETP expression in macrophages promotes an intracellular antioxidant state, reduces free cholesterol accumulation and phagocytosis, and attenuates pro-inflammatory gene expression. To determine whether CETP expression in macrophages affects atherosclerosis development, we transplanted bone marrow from transgenic mice expressing simian CETP or non-expressing littermates into hypercholesterolemic LDL-receptor-deficient mice. The CETP expression did not change the lipid-stained lesion areas but decreased the macrophage content (CD68), neutrophil accumulation (LY6G), and TNF-α aorta content of young male transplanted mice and decreased LY6G, TNF-α, iNOS, and nitrotyrosine (3-NT) in aged female transplanted mice. These findings suggest that CETP expression in bone-marrow-derived cells reduces the inflammatory features of atherosclerosis. These novel mechanistic observations may help to explain the failure of CETP inhibitors in reducing atherosclerotic events in humans.
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Affiliation(s)
- Thiago Rentz
- Department of Structural and Functional Biology, Institute of Biology, State University of Campinas, Campinas 13083-862, SP, Brazil; (T.R.); (G.G.D.); (L.M.B.); (I.N.F.); (C.M.L.)
| | - Gabriel G. Dorighello
- Department of Structural and Functional Biology, Institute of Biology, State University of Campinas, Campinas 13083-862, SP, Brazil; (T.R.); (G.G.D.); (L.M.B.); (I.N.F.); (C.M.L.)
| | - Renata R. dos Santos
- Division of Radiotherapy, Medical School Hospital, Faculty of Medical Sciences, State University of Campinas, Campinas 13083-887, SP, Brazil;
| | - Lohanna M. Barreto
- Department of Structural and Functional Biology, Institute of Biology, State University of Campinas, Campinas 13083-862, SP, Brazil; (T.R.); (G.G.D.); (L.M.B.); (I.N.F.); (C.M.L.)
| | - Israelle N. Freitas
- Department of Structural and Functional Biology, Institute of Biology, State University of Campinas, Campinas 13083-862, SP, Brazil; (T.R.); (G.G.D.); (L.M.B.); (I.N.F.); (C.M.L.)
| | - Carolina M. Lazaro
- Department of Structural and Functional Biology, Institute of Biology, State University of Campinas, Campinas 13083-862, SP, Brazil; (T.R.); (G.G.D.); (L.M.B.); (I.N.F.); (C.M.L.)
| | - Daniela S. Razolli
- Obesity and Comorbidities Research Center, State University of Campinas, Campinas 13083-864, SP, Brazil;
| | - Patricia M. Cazita
- Laboratório de Lípides (LIM10), Hospital das Clínicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo 01246-903, SP, Brazil;
| | - Helena C. F. Oliveira
- Department of Structural and Functional Biology, Institute of Biology, State University of Campinas, Campinas 13083-862, SP, Brazil; (T.R.); (G.G.D.); (L.M.B.); (I.N.F.); (C.M.L.)
- Obesity and Comorbidities Research Center, State University of Campinas, Campinas 13083-864, SP, Brazil;
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Wang S, Liu Y, Chen J, He Y, Ma W, Liu X, Sun X. Effects of multi-organ crosstalk on the physiology and pathology of adipose tissue. Front Endocrinol (Lausanne) 2023; 14:1198984. [PMID: 37383400 PMCID: PMC10293893 DOI: 10.3389/fendo.2023.1198984] [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: 04/02/2023] [Accepted: 05/26/2023] [Indexed: 06/30/2023] Open
Abstract
In previous studies, adipocytes were found to play an important role in regulating whole-body nutrition and energy balance, and are also important in energy metabolism, hormone secretion, and immune regulation. Different adipocytes have different contributions to the body, with white adipocytes primarily storing energy and brown adipocytes producing heat. Recently discovered beige adipocytes, which have characteristics in between white and brown adipocytes, also have the potential to produce heat. Adipocytes interact with other cells in the microenvironment to promote blood vessel growth and immune and neural network interactions. Adipose tissue plays an important role in obesity, metabolic syndrome, and type 2 diabetes. Dysfunction in adipose tissue endocrine and immune regulation can cause and promote the occurrence and development of related diseases. Adipose tissue can also secrete multiple cytokines, which can interact with organs; however, previous studies have not comprehensively summarized the interaction between adipose tissue and other organs. This article reviews the effect of multi-organ crosstalk on the physiology and pathology of adipose tissue, including interactions between the central nervous system, heart, liver, skeletal muscle, and intestines, as well as the mechanisms of adipose tissue in the development of various diseases and its role in disease treatment. It emphasizes the importance of a deeper understanding of these mechanisms for the prevention and treatment of related diseases. Determining these mechanisms has enormous potential for identifying new targets for treating diabetes, metabolic disorders, and cardiovascular diseases.
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Affiliation(s)
- Sufen Wang
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan, China
- Institute of Aging Research, School of Medical Technology, Guangdong Medical University, Dongguan, China
| | - Yifan Liu
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan, China
- Institute of Aging Research, School of Medical Technology, Guangdong Medical University, Dongguan, China
| | - Jiaqi Chen
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan, China
- Institute of Aging Research, School of Medical Technology, Guangdong Medical University, Dongguan, China
| | - Yuejing He
- Clinical Laboratory, Dongguan Eighth People’s Hospital, Dongguan, China
| | - Wanrui Ma
- Department of General Medicine, The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan, China
| | - Xinguang Liu
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan, China
- Institute of Aging Research, School of Medical Technology, Guangdong Medical University, Dongguan, China
| | - Xuerong Sun
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan, China
- Institute of Aging Research, School of Medical Technology, Guangdong Medical University, Dongguan, China
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Khalaf RA, Asa'ad M, Habash M. Thiomethylphenyl benzenesulfonamides as potential cholesteryl ester transfer protein inhibitors: Synthesis, molecular modeling and biological evaluation. CURR ORG CHEM 2022. [DOI: 10.2174/1385272826666220601150913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:
The number of lipid disorders cases has risen dramatically around the world as a result of poor dietary habits, hereditary risk factors, or other diseases or medicines. Cholesteryl ester transfer protein (CETP) is a 476 amino acid lipophilic glycoprotein that helps transport cholesteryl esters and phospholipids from proatherogenic LDL and VLDL to atheroprotective HDL. CETP inhibition increases HDL cholesterol, lowers LDL cholesterol and triglycerides, rendering it a promising therapy option for hyperlipidemia and its comorbidities.
Methods:
In this research, fourteen benzenesulfonamides 7a-7g and 8a-8g were synthesized and identified using 1H-NMR, 13C-NMR, IR and MS. The in vitro biological evaluation of 7a-7g and 8a-8g revealed CETP inhibitory activities ranging from 15.6 to 100% at 10 μM concentration.
Results:
Four aromatic rings compounds bearing either m-CH3 (8c) or p-Cl (8g) were the most potent compounds with 100% CETP inhibition, while the most active compound was 7c bearing three aromatic rings and m-CH3 with an IC50 of 0.12 μM. LibDock displayed that benzeneulfonamides can form hydrophobic interactions with the side chains of Leu129, Cys13, Ala202, Val198, Leu217 and Ile215 and participate in п-п stacking with Phe441, Phe197 and Arg201 in the binding pocket of CETP.
Conclusion:
Pharmacophore mapping showed significant matching with the pharmacophoric features of Hypo4/8 and shape-complemented Hypo4/8 of CETP inhibitors for potent compounds.
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Affiliation(s)
- Reema Abu Khalaf
- Department of Pharmacy, Faculty of Pharmacy, Al-Zaytoonah University of Jordan, Amman, Jordan
| | - Manal Asa'ad
- Department of Pharmacy, Faculty of Pharmacy, Al-Zaytoonah University of Jordan, Amman, Jordan
| | - Maha Habash
- Department of Pharmacy, Faculty of Pharmacy, Aqaba University of Technology, Aqaba, Jordan
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Zhu L, An J, Chinnarasu S, Luu T, Pettway YD, Fahey K, Litts B, Kim HYH, Flynn CR, Linton MF, Stafford JM. Expressing the Human Cholesteryl Ester Transfer Protein Minigene Improves Diet-Induced Fatty Liver and Insulin Resistance in Female Mice. Front Physiol 2022; 12:799096. [PMID: 35082691 PMCID: PMC8784660 DOI: 10.3389/fphys.2021.799096] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Accepted: 12/16/2021] [Indexed: 01/22/2023] Open
Abstract
Mounting evidence has shown that CETP has important physiological roles in adapting to chronic nutrient excess, specifically, to protect against diet-induced insulin resistance. However, the underlying mechanisms for the protective roles of CETP in metabolism are not yet clear. Mice naturally lack CETP expression. We used transgenic mice with a human CETP minigene (huCETP) controlled by its natural flanking region to further understand CETP-related physiology in response to obesity. Female huCETP mice and their wild-type littermates were fed a high-fat diet for 6 months. Blood lipid profile and liver lipid metabolism were studied. Insulin sensitivity was analyzed with euglycemic-hyperinsulinemic clamp studies combined with 3H-glucose tracer techniques. While high-fat diet feeding induced obesity for huCETP mice and their wild-type littermates lacking CETP expression, insulin sensitivity was higher for female huCETP mice than for their wild-type littermates. There was no difference in insulin sensitivity for male huCETP mice vs. littermates. The increased insulin sensitivity in females was largely caused by the better insulin-mediated suppression of hepatic glucose production. In huCETP females, CETP in the circulation decreased HDL-cholesterol content and increased liver cholesterol uptake and liver cholesterol and oxysterol contents, which was associated with the upregulation of LXR target genes in long-chain polyunsaturated fatty acid biosynthesis and PPARα target genes in fatty acid β-oxidation in the liver. The upregulated fatty acid β-oxidation may account for the improved fatty liver and liver insulin action in female huCETP mice. This study provides further evidence that CETP has beneficial physiological roles in the metabolic adaptation to nutrient excess by promoting liver fatty acid oxidation and hepatic insulin sensitivity, particularly for females.
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Affiliation(s)
- Lin Zhu
- VA Tennessee Valley Healthcare System, Nashville, TN, United States.,Division of Diabetes, Endocrinology, and Metabolism, Vanderbilt University School of Medicine, Nashville, TN, United States
| | - Julia An
- Division of Diabetes, Endocrinology, and Metabolism, Vanderbilt University School of Medicine, Nashville, TN, United States
| | - Sivaprakasam Chinnarasu
- Division of Diabetes, Endocrinology, and Metabolism, Vanderbilt University School of Medicine, Nashville, TN, United States
| | - Thao Luu
- Division of Diabetes, Endocrinology, and Metabolism, Vanderbilt University School of Medicine, Nashville, TN, United States
| | - Yasminye D Pettway
- Division of Diabetes, Endocrinology, and Metabolism, Vanderbilt University School of Medicine, Nashville, TN, United States
| | - Kelly Fahey
- Division of Diabetes, Endocrinology, and Metabolism, Vanderbilt University School of Medicine, Nashville, TN, United States
| | - Bridget Litts
- Division of Diabetes, Endocrinology, and Metabolism, Vanderbilt University School of Medicine, Nashville, TN, United States
| | - Hye-Young H Kim
- Department of Chemistry, Vanderbilt University, Nashville, TN, United States
| | - Charles R Flynn
- Section of Surgical Sciences, Vanderbilt University School of Medicine, Nashville, TN, United States
| | - MacRae F Linton
- Atherosclerosis Research Unit, Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN, United States
| | - John M Stafford
- VA Tennessee Valley Healthcare System, Nashville, TN, United States.,Division of Diabetes, Endocrinology, and Metabolism, Vanderbilt University School of Medicine, Nashville, TN, United States.,Department of Molecular Physiology and Biophysics, Vanderbilt University, Nashville, TN, United States
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10
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Liu Y, Mihna D, Izem L, Morton RE. Both full length-cholesteryl ester transfer protein and exon 9-deleted cholesteryl ester transfer protein promote triacylglycerol storage in cultured hepatocytes. Lipids 2022; 57:69-79. [PMID: 34866179 PMCID: PMC9060302 DOI: 10.1002/lipd.12330] [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: 07/15/2021] [Revised: 11/22/2021] [Accepted: 11/23/2021] [Indexed: 01/03/2023]
Abstract
We previously reported that overexpression of full-length cholesteryl ester transfer protein (FL-CETP), but not its exon 9-deleted variant (∆E9-CETP), in an adipose cell line reduces their triacylglycerol (TAG) content. This provided mechanistic insight into several in vivo studies where FL-CETP levels are inversely correlated with adiposity. However, increased FL-CETP is also associated with elevated hepatic lipids, suggesting that the effect of CETP on cellular lipid metabolism may be tissue-specific. Here, we directly investigated the role of FL-CETP and ∆E9-CETP in hepatic lipid metabolism. FL- or ∆E9-CETP was overexpressed in HepG2-C3A by adenovirus transduction. Overexpression of either FL or ∆E9-CETP in hepatocytes increased cellular TAG mass by 25% but reduced TAG secretion. This cellular TAG was contained in larger and more numerous lipid droplets. Analysis of TAG synthetic and catabolic pathways showed that this elevated TAG content was due to increased incorporation of fatty acid into TAG (24%), and higher de novo synthesis of fatty acid (50%) and TAG from acetate (40%). siRNA knockdown of CETP had the opposite effect on TAG synthesis and lipogenesis, and decreased cellular TAG. This novel increase in cellular TAG by FL-CETP overexpression was reproduced in Caco-2 intestinal epithelial cells. We conclude that, unlike that seen in adipocyte cells, overexpression of either CETP isoform in lipoprotein-secreting cells promotes the accumulation of TAG. These data suggest that the in vivo correlation between CETP levels and hepatic steatosis can be explained, in part, by a direct effect of CETP on hepatocyte cellular metabolism.
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Affiliation(s)
- Yan Liu
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute, Cleveland Clinic Foundation, Cleveland, Ohio, USA
| | - Daniel Mihna
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute, Cleveland Clinic Foundation, Cleveland, Ohio, USA
| | - Lahoucine Izem
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute, Cleveland Clinic Foundation, Cleveland, Ohio, USA
| | - Richard E Morton
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute, Cleveland Clinic Foundation, Cleveland, Ohio, USA
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