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Marino L, Ni B, Farrar JS, Lownik JC, Pearce JV, Martin RK, Celi FS. Adipose tissue-selective ablation of ADAM10 results in divergent metabolic phenotypes following long-term dietary manipulation. Adipocyte 2024; 13:2339418. [PMID: 38706095 PMCID: PMC11073419 DOI: 10.1080/21623945.2024.2339418] [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: 10/26/2023] [Accepted: 04/02/2024] [Indexed: 05/07/2024] Open
Abstract
A Disintegrin And Metalloproteinase domain-containing protein 10 (ADAM10), is involved in several metabolic and inflammatory pathways. We speculated that ADAM10 plays a modulatory role in adipose tissue inflammation and metabolism. To this end, we studied adipose tissue-specific ADAM10 knock-out mice (aKO). While young, regular chow diet-fed aKO mice showed increased insulin sensitivity, following prolonged (33 weeks) high-fat diet (HFD) exposure, aKO mice developed obesity and insulin resistance. Compared to controls, aKO mice showed less inflammatory adipokine profile despite the significant increase in adiposity. In brown adipose tissue, aKO mice on HFD had changes in CD8+ T cell populations indicating a lesser inflammatory pattern. Following HFD, both aKO and control littermates demonstrated decreased adipose tissue pro-inflammatory macrophages, and increased anti-inflammatory accumulation, without differences between the genotypes. Collectively, our observations indicate that selective deletion of ADAM10 in adipocytes results in a mitigated inflammatory response, leading to increased insulin sensitivity in young mice fed with regular diet. This state of insulin sensitivity, following prolonged HFD, facilitates energy storage resulting in increased fat accumulation which ultimately leads to the development of a phenotype of obesity and insulin resistance. In conclusion, the data indicate that ADAM10 has a modulatory effect of inflammation and whole-body energy metabolism.
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Affiliation(s)
- Luigi Marino
- Department of Medicine, UConn Health, University of Connecticut, Farmington, CT, USA
| | - Bin Ni
- Alliance Pharma, Philadelphia, PA, USA
| | - Jared S. Farrar
- Center for Clinical and Translational Research, Virginia Commonwealth University School of Medicine, Richmond, VA, USA
| | - Joseph C. Lownik
- Center for Clinical and Translational Research, Virginia Commonwealth University School of Medicine, Richmond, VA, USA
| | - Janina V. Pearce
- Center for Clinical and Translational Research, Virginia Commonwealth University School of Medicine, Richmond, VA, USA
| | - Rebecca K. Martin
- Department of Microbiology and Immunology, Virginia Commonwealth University School of Medicine, Richmond, VA, USA
| | - Francesco S. Celi
- Department of Medicine, UConn Health, University of Connecticut, Farmington, CT, USA
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2
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Dahdah N, Tercero-Alcázar C, Malagón MM, Garcia-Roves PM, Guzmán-Ruiz R. Interrelation of adipose tissue macrophages and fibrosis in obesity. Biochem Pharmacol 2024; 225:116324. [PMID: 38815633 DOI: 10.1016/j.bcp.2024.116324] [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: 01/09/2024] [Revised: 05/06/2024] [Accepted: 05/27/2024] [Indexed: 06/01/2024]
Abstract
Obesity is characterized by adipose tissue expansion, extracellular matrix remodelling and unresolved inflammation that contribute to insulin resistance and fibrosis. Adipose tissue macrophages represent the most abundant class of immune cells in adipose tissue inflammation and could be key mediators of adipocyte dysfunction and fibrosis in obesity. Although macrophage activation states are classically defined by the M1/M2 polarization nomenclature, novel studies have revealed a more complex range of macrophage phenotypes in response to external condition or the surrounding microenvironment. Here, we discuss the plasticity of adipose tissue macrophages (ATMs) in response to their microenvironment in obesity, with special focus on macrophage infiltration and polarization, and their contribution to adipose tissue fibrosis. A better understanding of the role of ATMs as regulators of adipose tissue remodelling may provide novel therapeutic strategies against obesity and associated metabolic diseases.
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Affiliation(s)
- Norma Dahdah
- Departament de Ciències Fisiològiques, Universitat de Barcelona, IDIBELL, L'Hospitalet de Llobregat, Spain
| | - Carmen Tercero-Alcázar
- Centro de Investigación Biomédica en Red Fisiopatología de la Obesidad y la Nutrición (CIBEROBN), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - María M Malagón
- Centro de Investigación Biomédica en Red Fisiopatología de la Obesidad y la Nutrición (CIBEROBN), Instituto de Salud Carlos III, 28029 Madrid, Spain; Department of Cell Biology, Physiology and Immunology, IMIBIC, Reina Sofía University Hospital, University of Córdoba, 14004 Córdoba, Spain
| | - Pablo Miguel Garcia-Roves
- Departament de Ciències Fisiològiques, Universitat de Barcelona, IDIBELL, L'Hospitalet de Llobregat, Spain; Centro de Investigación Biomédica en Red Fisiopatología de la Obesidad y la Nutrición (CIBEROBN), Instituto de Salud Carlos III, 28029 Madrid, Spain.
| | - Rocío Guzmán-Ruiz
- Centro de Investigación Biomédica en Red Fisiopatología de la Obesidad y la Nutrición (CIBEROBN), Instituto de Salud Carlos III, 28029 Madrid, Spain; Department of Cell Biology, Physiology and Immunology, IMIBIC, Reina Sofía University Hospital, University of Córdoba, 14004 Córdoba, Spain.
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3
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Baynat L, Yamamoto T, Tourdias T, Zhang B, Prevost V, Infante A, Klein A, Caid J, Cadart O, Dousset V, Gatta Cherifi B. Quantitative MRI Biomarkers Measure Changes in Targeted Brain Areas in Patients With Obesity. J Clin Endocrinol Metab 2024; 109:1850-1857. [PMID: 38195765 DOI: 10.1210/clinem/dgae014] [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: 08/10/2023] [Revised: 12/14/2023] [Accepted: 01/08/2024] [Indexed: 01/11/2024]
Abstract
CONTEXT Obesity is accompanied by damages to several tissues, including the brain. Pathological data and animal models have demonstrated an increased inflammatory reaction in hypothalamus and hippocampus. OBJECTIVE We tested whether we could observe such pathological modifications in vivo through quantitative magnetic resonance imaging (MRI) metrics. METHODS This prospective study was conducted between May 2019 and November 2022. The study was conducted in the Specialized Center for the Care of Obesity in a French University Hospital. Twenty-seven patients with obesity and 23 age and gender-paired normal-weight controls were prospectively recruited. All participants were examined using brain MRI. Anthropometric and biological data, eating behavior, anxiety, depression, and memory performance were assessed in both groups. The main outcome measure was brain MRI with the following parametric maps: quantitative susceptibility mapping (QSM), mean diffusivity (MD), fractional anisotropy (FA), magnetization transfer ratio map, and T2 relaxivity map. RESULTS In the hypothalamus, patients with obesity had higher FA and lower QSM than normal-weight controls. In the hippocampus, patients with obesity had higher FA and lower MD. There was no correlation between imaging biomarkers and eating behavior or anxiety. CONCLUSION Our findings are consistent with the presence of neuroinflammation in brain regions involved in food intake. In vivo brain biomarkers from quantitative MRI appear to provide an incremental information for the assessment of brain damages in patients with obesity.
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Affiliation(s)
- Louise Baynat
- University of Bordeaux, INSERM U1215, Neurocentre Magendie, 33000 Bordeaux, France
- CHU Bordeaux, Hôpital Haut Lévêque Service Endocrinologie, Diabétologie, Nutrition, 33600 Pessac, France
| | - Takayuki Yamamoto
- University of Bordeaux, INSERM U1215, Neurocentre Magendie, 33000 Bordeaux, France
| | - Thomas Tourdias
- University of Bordeaux, INSERM U1215, Neurocentre Magendie, 33000 Bordeaux, France
- CHU Bordeaux, Hôpital Pellegrin, Service de Neuroimagerie diagnostique et thérapeutique, 33000 Bordeaux, France
| | - Bei Zhang
- Magnetic Resonance, Canon Medical Systems Europe, 2718 Zoetermeer, Netherlands
| | - Valentin Prevost
- CT-MR Solution Planning Department, Canon Medical Systems Corporation, Tochigi, Japan
| | - Asael Infante
- CHU Bordeaux, Hôpital Haut Lévêque Service Endocrinologie, Diabétologie, Nutrition, 33600 Pessac, France
| | - Achille Klein
- CHU Bordeaux, Hôpital Haut Lévêque Service Endocrinologie, Diabétologie, Nutrition, 33600 Pessac, France
| | - Julien Caid
- CHU Bordeaux, Hôpital Haut Lévêque Service Endocrinologie, Diabétologie, Nutrition, 33600 Pessac, France
| | - Olivier Cadart
- Endocrinology, Centre Hospitalier d'Angoulême, Endocrinolology, Rond point Girac, 16000 Angouleme, France
| | - Vincent Dousset
- University of Bordeaux, INSERM U1215, Neurocentre Magendie, 33000 Bordeaux, France
- CHU Bordeaux, Hôpital Pellegrin, Service de Neuroimagerie diagnostique et thérapeutique, 33000 Bordeaux, France
| | - Blandine Gatta Cherifi
- University of Bordeaux, INSERM U1215, Neurocentre Magendie, 33000 Bordeaux, France
- CHU Bordeaux, Hôpital Haut Lévêque Service Endocrinologie, Diabétologie, Nutrition, 33600 Pessac, France
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Elseweidy MM, Asker ME, El-Zeiky RR, Elmaghraby AM, Elrashidy RA. Sitagliptin alleviates renal steatosis and endoplasmic reticulum stress in high fat diet-induced obese rats by targeting SREBP-1/CD36 signaling pathway. Eur J Pharmacol 2024:176745. [PMID: 38880220 DOI: 10.1016/j.ejphar.2024.176745] [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: 03/20/2024] [Revised: 06/08/2024] [Accepted: 06/13/2024] [Indexed: 06/18/2024]
Abstract
High fat diet (HFD) consumption can cause dysregulation of glucose and lipid metabolism, coupled with increased ectopic lipid deposition in renal tissue leading to steatosis and dysfunction. Sitagliptin is a dipeptidyl peptidase-4 (DPP-4) inhibitor clinically used for type II diabetes therapy; however its effect on renal steatosis in obese state is still uncertain. Herein, obesity was induced by feeding male Wistar rats HFD for 18 weeks, thereafter received either drug vehicle, or sitagliptin (10 mg/kg, PO) along with HFD for further 6 weeks and compared with age-matched rats receiving normal chow diet (NCD). After 24 weeks, serum and kidneys were collected for histological and biochemical assessments. Compared to NCD-fed group, HFD-fed rats displayed marked weight gain, increased fat mass, insulin resistance, dyslipidemia, impaired kidney functions and renal histological alterations. Sitagliptin effectively ameliorated obesity and related metabolic perturbations and improved kidney architecture and function. There were increased levels of triglycerides and cluster of differentiation 36 (CD36) in kidneys of obese rats, that were lowered by sitagliptin therapy. Sitagliptin significantly repressed the expression of lipogenesis genes, while up-regulated genes involved in mitochondrial biogenesis and fatty acid oxidation in kidneys of HFD-fed rats. Sitagliptin was found to induce down-regulation of endoplasmic reticulum (ER) stress and apoptotic markers in kidneys of obese rats. These findings together may emphasize a novel concept that sitagliptin can be an effective therapeutic approach for halting obesity-related renal steatosis and CKD.
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Affiliation(s)
- Mohammed M Elseweidy
- Biochemistry Department, Faculty of Pharmacy, Zagazig University, Zagazig 44519, Egypt.
| | - Mervat E Asker
- Biochemistry Department, Faculty of Pharmacy, Zagazig University, Zagazig 44519, Egypt
| | - Reham R El-Zeiky
- Biochemistry Department, Faculty of Pharmacy, Zagazig University, Zagazig 44519, Egypt
| | - Asmaa M Elmaghraby
- Histology and Cell Biology Department, Faculty of Medicine for Girls, Al-Azhar University, Cairo, Egypt
| | - Rania A Elrashidy
- Biochemistry Department, Faculty of Pharmacy, Zagazig University, Zagazig 44519, Egypt.
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Li Z, Cheng W, Gao K, Liang S, Ke L, Wang M, Fan J, Li D, Zhang P, Xu Z, Li N. Pyroptosis: A spoiler of peaceful coexistence between cells in degenerative bone and joint diseases. J Adv Res 2024:S2090-1232(24)00247-9. [PMID: 38876191 DOI: 10.1016/j.jare.2024.06.010] [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: 02/17/2024] [Revised: 05/23/2024] [Accepted: 06/07/2024] [Indexed: 06/16/2024] Open
Abstract
BACKGROUND As people age, degenerative bone and joint diseases (DBJDs) become more prevalent. When middle-aged and elderly people are diagnosed with one or more disorders such as osteoporosis (OP), osteoarthritis (OA), and intervertebral disc degeneration (IVDD), it often signals the onset of prolonged pain and reduced functionality. Chronic inflammation has been identified as the underlying cause of various degenerative diseases, including DBJDs. Recently, excessive activation of pyroptosis, a form of programed cell death (PCD) mediated by inflammasomes, has emerged as a primary driver of harmful chronic inflammation. Consequently, pyroptosis has become a potential target for preventing and treating DBJDs. AIM OF REVIEW This review explored the physiological and pathological roles of the pyroptosis pathway in bone and joint development and its relation to DBJDs. Meanwhile, it elaborated the molecular mechanisms of pyroptosis within individual cell types in the bone marrow and joints, as well as the interplay among different cell types in the context of DBJDs. Furthermore, this review presented the latest compelling evidence supporting the idea of regulating the pyroptosis pathway for DBJDs treatment, and discussed the potential, limitations, and challenges of various therapeutic strategies involving pyroptosis regulation. KEY SCIENTIFIC CONCEPTS OF REVIEW In summary, an interesting identity for the unregulated pyroptosis pathway in the context of DBJDs was proposed in this review, which was undertaken as a spoiler of peaceful coexistence between cells in a degenerative environment. Over the extended course of DBJDs, pyroptosis pathway perpetuated its activity through crosstalk among pyroptosis cascades in different cell types, thus exacerbating the inflammatory environment throughout the entire bone marrow and joint degeneration environment. Correspondingly, pyroptosis regulation therapy emerged as a promising option for clinical treatment of DBJDs.
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Affiliation(s)
- Zhichao Li
- First College of Clinical Medicine, Shandong University of Traditional Chinese Medicine, Jinan 250014, China; Department of Orthopedics, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan 250014, China; Center for Translational Medicine Research and Development, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Wenxiang Cheng
- Center for Translational Medicine Research and Development, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Kuanhui Gao
- First College of Clinical Medicine, Shandong University of Traditional Chinese Medicine, Jinan 250014, China
| | - Songlin Liang
- First College of Clinical Medicine, Shandong University of Traditional Chinese Medicine, Jinan 250014, China; Center for Translational Medicine Research and Development, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Liqing Ke
- Center for Translational Medicine Research and Development, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Mengjie Wang
- First College of Clinical Medicine, Shandong University of Traditional Chinese Medicine, Jinan 250014, China
| | - Jilin Fan
- First College of Clinical Medicine, Shandong University of Traditional Chinese Medicine, Jinan 250014, China
| | - Dandan Li
- College of Integrated Traditional Chinese and Western Medicine, Hebei University of Chinese Medicine, Shijiazhuang 050011, China
| | - Peng Zhang
- Center for Translational Medicine Research and Development, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China; Faculty of Biomedical Engineering, Shenzhen University of Advanced Technology, Shenzhen 518000, China; Key Laboratory of Biomedical Imaging Science and System, Chinese Academy of Sciences, Shenzhen, 518000 China; Shandong Zhongke Advanced Technology Co., Ltd., Jinan, 250300 China.
| | - Zhanwang Xu
- First College of Clinical Medicine, Shandong University of Traditional Chinese Medicine, Jinan 250014, China; Department of Orthopedics, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan 250014, China.
| | - Nianhu Li
- First College of Clinical Medicine, Shandong University of Traditional Chinese Medicine, Jinan 250014, China; Department of Orthopedics, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan 250014, China.
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6
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Panova-Noeva M, Koeck T, Schoelch C, Schulz A, Prochaska JH, Michal M, Strauch K, Schuster AK, Lackner KJ, Münzel T, Hennige AM, Wild PS. Obesity-related inflammatory protein signature in cardiovascular clinical outcomes: results from the Gutenberg Health Study. Obesity (Silver Spring) 2024; 32:1198-1209. [PMID: 38664310 DOI: 10.1002/oby.24014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 01/23/2024] [Accepted: 02/14/2024] [Indexed: 05/29/2024]
Abstract
OBJECTIVE The objective of this study was to investigate whether an obesity-related inflammatory protein signature (OIPS) is associated with adverse cardiovascular events. METHODS The Olink Target 96 Inflammation panel was performed in 6662 participants from the population-based Gutenberg Health Study (GHS). The OIPS was selected by a logistic regression model, and its association with cardiovascular outcomes was evaluated by Cox regression analysis. The GHS-derived OIPS was externally validated in the MyoVasc study. RESULTS The identified OIPS entailed 21 proteins involved in chemokine activity, tumor necrosis factor (TNF) receptor binding, and growth factor receptor binding. The signature revealed a novel positive association of axis inhibition protein 1 with obesity. The OIPS was associated with increased risk of all-cause and cardiac deaths, major adverse cardiovascular events, and incident coronary artery disease, independent of clinical covariates and established risk instruments. A BMI-stratified analysis confirmed the association of OIPS with increased death in those with obesity and overweight and with increased risk for coronary artery disease in those with obesity. The association of OIPS with increased risk of all-cause and cardiac deaths was validated in the MyoVasc cohort. CONCLUSIONS The OIPS showed a significant association with adverse clinical outcomes, particularly in those with overweight and obesity, and represents a promising tool for identifying patients at higher risk for worse cardiovascular outcomes.
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Affiliation(s)
- Marina Panova-Noeva
- Translational Medicine and Clinical Pharmacology, Boehringer Ingelheim Pharma GmbH & Co. KG, Ingelheim, Germany
- Center for Thrombosis and Haemostasis, University Medical Center, Johannes Gutenberg University Mainz, Mainz, Germany
| | - Thomas Koeck
- Preventive Cardiology and Preventive Medicine, Center for Cardiology, University Medical Center, Johannes Gutenberg University Mainz, Mainz, Germany
- German Centre for Cardiovascular Research (DZHK), Partner Site Rhine-Main, Mainz, Germany
| | - Corinna Schoelch
- Translational Medicine and Clinical Pharmacology, Boehringer Ingelheim Pharma GmbH & Co. KG, Biberach, Germany
| | - Andreas Schulz
- Preventive Cardiology and Preventive Medicine, Center for Cardiology, University Medical Center, Johannes Gutenberg University Mainz, Mainz, Germany
| | - Jürgen H Prochaska
- Center for Thrombosis and Haemostasis, University Medical Center, Johannes Gutenberg University Mainz, Mainz, Germany
- Preventive Cardiology and Preventive Medicine, Center for Cardiology, University Medical Center, Johannes Gutenberg University Mainz, Mainz, Germany
- German Centre for Cardiovascular Research (DZHK), Partner Site Rhine-Main, Mainz, Germany
| | - Matthias Michal
- German Centre for Cardiovascular Research (DZHK), Partner Site Rhine-Main, Mainz, Germany
- Department of Psychosomatic Medicine and Psychotherapy, University Medical Center, Johannes Gutenberg University Mainz, Mainz, Germany
| | - Konstantin Strauch
- Institute for Medical Biometrics, Epidemiology and Informatics (IMBEI), University Medical Center, Johannes Gutenberg University Mainz, Mainz, Germany
| | - Alexander K Schuster
- Department of Ophthalmology, University Medical Center, Johannes Gutenberg University Mainz, Mainz, Germany
| | - Karl J Lackner
- German Centre for Cardiovascular Research (DZHK), Partner Site Rhine-Main, Mainz, Germany
- Institute of Clinical Chemistry and Laboratory Medicine, University Medical Center, Johannes Gutenberg University Mainz, Mainz, Germany
| | - Thomas Münzel
- Center for Thrombosis and Haemostasis, University Medical Center, Johannes Gutenberg University Mainz, Mainz, Germany
- German Centre for Cardiovascular Research (DZHK), Partner Site Rhine-Main, Mainz, Germany
- Department of Cardiology-Cardiology I, University Medical Center, Johannes Gutenberg University Mainz, Mainz, Germany
| | - Anita M Hennige
- Therapeutic Area CardioMetabolism & Respiratory, Boehringer Ingelheim International GmbH, Biberach, Germany
| | - Philipp S Wild
- Center for Thrombosis and Haemostasis, University Medical Center, Johannes Gutenberg University Mainz, Mainz, Germany
- Preventive Cardiology and Preventive Medicine, Center for Cardiology, University Medical Center, Johannes Gutenberg University Mainz, Mainz, Germany
- German Centre for Cardiovascular Research (DZHK), Partner Site Rhine-Main, Mainz, Germany
- Institute of Molecular Biology (IMB), Mainz, Germany
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7
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Yang Z, Chen F, Zhang Y, Ou M, Tan P, Xu X, Li Q, Zhou S. Therapeutic targeting of white adipose tissue metabolic dysfunction in obesity: mechanisms and opportunities. MedComm (Beijing) 2024; 5:e560. [PMID: 38812572 PMCID: PMC11134193 DOI: 10.1002/mco2.560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2023] [Revised: 04/09/2024] [Accepted: 04/14/2024] [Indexed: 05/31/2024] Open
Abstract
White adipose tissue is not only a highly heterogeneous organ containing various cells, such as adipocytes, adipose stem and progenitor cells, and immune cells, but also an endocrine organ that is highly important for regulating metabolic and immune homeostasis. In individuals with obesity, dynamic cellular changes in adipose tissue result in phenotypic switching and adipose tissue dysfunction, including pathological expansion, WAT fibrosis, immune cell infiltration, endoplasmic reticulum stress, and ectopic lipid accumulation, ultimately leading to chronic low-grade inflammation and insulin resistance. Recently, many distinct subpopulations of adipose tissue have been identified, providing new insights into the potential mechanisms of adipose dysfunction in individuals with obesity. Therefore, targeting white adipose tissue as a therapeutic agent for treating obesity and obesity-related metabolic diseases is of great scientific interest. Here, we provide an overview of white adipose tissue remodeling in individuals with obesity including cellular changes and discuss the underlying regulatory mechanisms of white adipose tissue metabolic dysfunction. Currently, various studies have uncovered promising targets and strategies for obesity treatment. We also outline the potential therapeutic signaling pathways of targeting adipose tissue and summarize existing therapeutic strategies for antiobesity treatment including pharmacological approaches, lifestyle interventions, and novel therapies.
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Affiliation(s)
- Zi‐Han Yang
- Department of Plastic and Burn SurgeryWest China Hospital of Sichuan UniversityChengduChina
- Department of Plastic & Reconstructive SurgeryShanghai Ninth People's HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
| | - Fang‐Zhou Chen
- Department of Plastic & Reconstructive SurgeryShanghai Ninth People's HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
| | - Yi‐Xiang Zhang
- Department of Plastic & Reconstructive SurgeryShanghai Ninth People's HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
| | - Min‐Yi Ou
- Department of Plastic & Reconstructive SurgeryShanghai Ninth People's HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
| | - Poh‐Ching Tan
- Department of Plastic & Reconstructive SurgeryShanghai Ninth People's HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
| | - Xue‐Wen Xu
- Department of Plastic and Burn SurgeryWest China Hospital of Sichuan UniversityChengduChina
| | - Qing‐Feng Li
- Department of Plastic & Reconstructive SurgeryShanghai Ninth People's HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
| | - Shuang‐Bai Zhou
- Department of Plastic & Reconstructive SurgeryShanghai Ninth People's HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
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8
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Yan S, Santoro A, Niphakis MJ, Pinto AM, Jacobs CL, Ahmad R, Suciu RM, Fonslow BR, Herbst-Graham RA, Ngo N, Henry CL, Herbst DM, Saghatelian A, Kahn BB, Rosen ED. Inflammation causes insulin resistance in mice via interferon regulatory factor 3 (IRF3)-mediated reduction in FAHFA levels. Nat Commun 2024; 15:4605. [PMID: 38816388 PMCID: PMC11139994 DOI: 10.1038/s41467-024-48220-5] [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: 11/08/2022] [Accepted: 04/24/2024] [Indexed: 06/01/2024] Open
Abstract
Obesity-induced inflammation causes metabolic dysfunction, but the mechanisms remain elusive. Here we show that the innate immune transcription factor interferon regulatory factor (IRF3) adversely affects glucose homeostasis through induction of the endogenous FAHFA hydrolase androgen induced gene 1 (AIG1) in adipocytes. Adipocyte-specific knockout of IRF3 protects male mice against high-fat diet-induced insulin resistance, whereas overexpression of IRF3 or AIG1 in adipocytes promotes insulin resistance on a high-fat diet. Furthermore, pharmacological inhibition of AIG1 reversed obesity-induced insulin resistance and restored glucose homeostasis in the setting of adipocyte IRF3 overexpression. We, therefore, identify the adipocyte IRF3/AIG1 axis as a crucial link between obesity-induced inflammation and insulin resistance and suggest an approach for limiting the metabolic dysfunction accompanying obesity.
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Affiliation(s)
- Shuai Yan
- Division of Endocrinology, Diabetes, and Metabolism, Beth Israel Deaconess Medical Center, 330 Brookline Ave, Boston, MA, 02215, USA
- Harvard Medical School, 25 Shattuck St, Boston, MA, 02130, USA
| | - Anna Santoro
- Division of Endocrinology, Diabetes, and Metabolism, Beth Israel Deaconess Medical Center, 330 Brookline Ave, Boston, MA, 02215, USA
- Harvard Medical School, 25 Shattuck St, Boston, MA, 02130, USA
| | - Micah J Niphakis
- Lundbeck La Jolla Research Center Inc., 10835 Road To The Cure Dr. #250, San Diego, CA, 92121, USA
| | - Antonio M Pinto
- The Salk Institute for Biological Studies, 10010 N. Torey Pines Rd, La Jolla, CA, 92037-1002, USA
| | - Christopher L Jacobs
- Division of Endocrinology, Diabetes, and Metabolism, Beth Israel Deaconess Medical Center, 330 Brookline Ave, Boston, MA, 02215, USA
- Harvard Medical School, 25 Shattuck St, Boston, MA, 02130, USA
| | - Rasheed Ahmad
- Immunology and Microbiology Department, Dasman Diabetes Institute, Jasim Mohamad Al Bahar St., Kuwait City, Kuwait
| | - Radu M Suciu
- Lundbeck La Jolla Research Center Inc., 10835 Road To The Cure Dr. #250, San Diego, CA, 92121, USA
| | - Bryan R Fonslow
- Lundbeck La Jolla Research Center Inc., 10835 Road To The Cure Dr. #250, San Diego, CA, 92121, USA
| | - Rachel A Herbst-Graham
- Lundbeck La Jolla Research Center Inc., 10835 Road To The Cure Dr. #250, San Diego, CA, 92121, USA
| | - Nhi Ngo
- Lundbeck La Jolla Research Center Inc., 10835 Road To The Cure Dr. #250, San Diego, CA, 92121, USA
| | - Cassandra L Henry
- Lundbeck La Jolla Research Center Inc., 10835 Road To The Cure Dr. #250, San Diego, CA, 92121, USA
| | - Dylan M Herbst
- Lundbeck La Jolla Research Center Inc., 10835 Road To The Cure Dr. #250, San Diego, CA, 92121, USA
| | - Alan Saghatelian
- The Salk Institute for Biological Studies, 10010 N. Torey Pines Rd, La Jolla, CA, 92037-1002, USA
| | - Barbara B Kahn
- Division of Endocrinology, Diabetes, and Metabolism, Beth Israel Deaconess Medical Center, 330 Brookline Ave, Boston, MA, 02215, USA
- Harvard Medical School, 25 Shattuck St, Boston, MA, 02130, USA
- Broad Institute of Harvard and MIT, 320 Charles St., Cambridge, MA, 02141, USA
| | - Evan D Rosen
- Division of Endocrinology, Diabetes, and Metabolism, Beth Israel Deaconess Medical Center, 330 Brookline Ave, Boston, MA, 02215, USA.
- Harvard Medical School, 25 Shattuck St, Boston, MA, 02130, USA.
- Broad Institute of Harvard and MIT, 320 Charles St., Cambridge, MA, 02141, USA.
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9
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Nitzan I, Akavian I, Shmueli O, Erdinest N, Hanina Y, Twig G, Safir M. Body mass index and astigmatism: A nationwide study. Clin Exp Ophthalmol 2024. [PMID: 38803147 DOI: 10.1111/ceo.14406] [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: 03/01/2024] [Revised: 04/12/2024] [Accepted: 05/10/2024] [Indexed: 05/29/2024]
Abstract
BACKGROUND Existing research on the relationship between body mass index (BMI) and astigmatism yields inconsistent results. This study analyses this association in a nationally representative sample of adolescents. METHODS This retrospective, cross-sectional study included Israeli adolescents who underwent medical assessments before mandatory military service between 2011 and 2022. BMI was categorised based on the US age- and sex-matched percentiles. Astigmatism was categorised by magnitude [low-moderate: 0.75 to <3.00 diopters (D), high: ≥3.00 D], and axis orientation [with-the-rule (WTR), against-the-rule (ATR), or oblique (OBL)]. Sex-stratified regression models adjusted for sociodemographic variables were used. RESULTS Of 935 989 adolescents evaluated, 887 325 were included [511 465 (57.6%) males, mean age 17.2 years]. Astigmatism was diagnosed in 123 675 (13.9%) adolescents, of whom 117 081 (13.2%) had low-moderate and 6594 (0.7%) had high astigmatism. WTR astigmatism was the most prevalent (8.2%), followed by ATR (4.1%) and OBL (1.6%) types. Compared with low-normal BMI (5th to 50th percentile), the adjusted ORs for total astigmatism increased with increasing BMI, peaking at 1.65 (1.57-1.74) in males and 1.74 (1.64-1.86) in females with severe obesity. ORs were accentuated for high astigmatism, reaching 3.51 (3.01-4.09) in males, and 3.45 (2.83-4.22) in females with severe obesity. WTR astigmatism demonstrated the strongest association with BMI, with ORs reaching 2.26 (2.13-2.40) in males and 2.04 (1.90-2.20) in females with severe obesity. The results persisted in a series of subgroup analyses. CONCLUSIONS Obesity is associated with higher odds of astigmatism in adolescence. Further investigation into the role of weight management in astigmatism development is warranted.
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Affiliation(s)
- Itay Nitzan
- Department of Ophthalmology, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
- Department of Military Medicine, Faculty of Medicine, Hebrew University of Jerusalem, Israel
- Israel Defense Forces, Medical Corps, Tel Hashomer, Ramat Gan, Israel
| | - Inbal Akavian
- Department of Military Medicine, Faculty of Medicine, Hebrew University of Jerusalem, Israel
- Israel Defense Forces, Medical Corps, Tel Hashomer, Ramat Gan, Israel
| | - Or Shmueli
- Department of Ophthalmology, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
| | - Nir Erdinest
- Department of Ophthalmology, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
| | - Yair Hanina
- Israel Defense Forces, Medical Corps, Tel Hashomer, Ramat Gan, Israel
| | - Gilad Twig
- Department of Military Medicine, Faculty of Medicine, Hebrew University of Jerusalem, Israel
- Israel Defense Forces, Medical Corps, Tel Hashomer, Ramat Gan, Israel
- Division of Endocrinology, Diabetes and Metabolism, Sheba Medical Center, Tel Hashomer, Ramat Gan, Israel
- Department of Preventive Medicine, School of Public Health, Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- The Gertner Institute for Epidemiology & Health Policy Research, Sheba Medical Center, Ramat Gan, Israel
| | - Margarita Safir
- Department of Military Medicine, Faculty of Medicine, Hebrew University of Jerusalem, Israel
- Israel Defense Forces, Medical Corps, Tel Hashomer, Ramat Gan, Israel
- Department of Ophthalmology, Shamir Medical Center, Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
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10
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Leite N, Tadiotto MC, de Moraes Junior FB, de Menezes-Junior FJ, Corazza PRP, da Silva LR, Lopes WA, de Matos O, Radominski RB, Coelho-E-Silva MJ. Examining the mediating role of muscle quantity in adolescents: associations with adiposity, cardiorespiratory fitness, muscular fitness, and cardiometabolic risk factors. Sci Rep 2024; 14:12030. [PMID: 38797741 PMCID: PMC11128436 DOI: 10.1038/s41598-024-61805-w] [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: 10/16/2023] [Accepted: 05/09/2024] [Indexed: 05/29/2024] Open
Abstract
The aim of this study was to evaluate the mediation role of muscle quantity in the relationship between physical fitness and cardiometabolic risk factors (CMRF) in adolescents. This cross-sectional study conducted with 120 adolescents of both sexes, aged between 10 and 17 years. Body mass, height, fat mass (FM), lean mass, blood pressure, high-density lipoprotein, low-density lipoprotein, triglycerides, glucose, insulin, cardiorespiratory fitness (CRF) and 1 repetition maximum strength (1-RM) with evaluation of the leg press 45° (RM-leg), bench press (RM-bench) and arm curl (RM-arm). Body mass index z-score, appendicular skeletal muscle mass, appendicular skeletal muscle mass index, lean mass index (LMI), muscle-to-fat ratio (MFR), age at peak height velocity, and CMRF z-score were calculated. The direct relation between FM and CMRF was mediated by the LMI (26%) and inverse relation between CRF and CMRF was mediated by the LMI (26%). For girls, the direct relation between FM and CMRF was mediated by the LMI (32%); the inverse relation between CRF, RM-leg, RM-arm and CMRF was mediated by the LMI (32%, 33%, and 32%, respective). For boys, the indirect effect was not significant, indicating that LMI is not a mediator in the relation between FM, CRF, 1-RM with CMRF. The direct relation between RM-leg and CMRF was mediated by the MRF (16%). This finding evidenced the importance of promoting a healthy lifestyle to improve physical fitness levels and the quantity of muscle mass in adolescents.
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Affiliation(s)
- Neiva Leite
- Department of Physical Education, Federal University of Paraná, Street Col. Francisco H. Dos Santos, 100, Jardim das Americas, Curitiba, Paraná, 81531-980, Brazil
| | - Maiara C Tadiotto
- Department of Physical Education, Federal University of Paraná, Street Col. Francisco H. Dos Santos, 100, Jardim das Americas, Curitiba, Paraná, 81531-980, Brazil.
| | - Frederico B de Moraes Junior
- Department of Physical Education, Federal University of Paraná, Street Col. Francisco H. Dos Santos, 100, Jardim das Americas, Curitiba, Paraná, 81531-980, Brazil
| | - Francisco J de Menezes-Junior
- Department of Physical Education, Federal University of Paraná, Street Col. Francisco H. Dos Santos, 100, Jardim das Americas, Curitiba, Paraná, 81531-980, Brazil
| | - Patricia R P Corazza
- Department of Physical Education, Federal University of Paraná, Street Col. Francisco H. Dos Santos, 100, Jardim das Americas, Curitiba, Paraná, 81531-980, Brazil
| | | | | | - Oslei de Matos
- Technological Federal University of Paraná, Curitiba, Brazil
| | - Rosana B Radominski
- Department of Physical Education, Federal University of Paraná, Street Col. Francisco H. Dos Santos, 100, Jardim das Americas, Curitiba, Paraná, 81531-980, Brazil
| | - Manuel J Coelho-E-Silva
- University of Coimbra, FCDEF, Coimbra, Portugal
- University of Coimbra, CIDAF (Uid/04213/2020), Coimbra, Portugal
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11
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Sahin C, Melanson JR, Le Billan F, Magomedova L, Ferreira TAM, Oliveira AS, Pollock-Tahari E, Saikali MF, Cash SB, Woo M, Romeiro LAS, Cummins CL. A novel fatty acid mimetic with pan-PPAR partial agonist activity inhibits diet-induced obesity and metabolic dysfunction-associated steatotic liver disease. Mol Metab 2024; 85:101958. [PMID: 38763495 PMCID: PMC11170206 DOI: 10.1016/j.molmet.2024.101958] [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: 01/28/2024] [Revised: 05/09/2024] [Accepted: 05/13/2024] [Indexed: 05/21/2024] Open
Abstract
OBJECTIVE The prevalence of metabolic diseases is increasing globally at an alarming rate; thus, it is essential that effective, accessible, low-cost therapeutics are developed. Peroxisome proliferator-activated receptors (PPARs) are transcription factors that tightly regulate glucose homeostasis and lipid metabolism and are important drug targets for the treatment of type 2 diabetes and dyslipidemia. We previously identified LDT409, a fatty acid-like compound derived from cashew nut shell liquid, as a novel pan-active PPARα/γ/δ compound. Herein, we aimed to assess the efficacy of LDT409 in vivo and investigate the molecular mechanisms governing the actions of the fatty acid mimetic LDT409 in diet-induced obese mice. METHODS C57Bl/6 mice (6-11-month-old) were fed a chow or high fat diet (HFD) for 4 weeks; mice thereafter received once daily intraperitoneal injections of vehicle, 10 mg/kg Rosiglitazone, 40 mg/kg WY14643, or 40 mg/kg LDT409 for 18 days while continuing the HFD. During treatments, body weight, food intake, glucose and insulin tolerance, energy expenditure, and intestinal lipid absorption were measured. On day 18 of treatment, tissues and plasma were collected for histological, molecular, and biochemical analysis. RESULTS We found that treatment with LDT409 was effective at reversing HFD-induced obesity and associated metabolic abnormalities in mice. LDT409 lowered food intake and hyperlipidemia, while improving insulin tolerance. Despite being a substrate of both PPARα and PPARγ, LDT409 was crucial for promoting hepatic fatty acid oxidation and reducing hepatic steatosis in HFD-fed mice. We also highlighted a role for LDT409 in white and brown adipocytes in vitro and in vivo where it decreased fat accumulation, increased lipolysis, induced browning of WAT, and upregulated thermogenic gene Ucp1. Remarkably, LDT409 reversed HFD-induced weight gain back to chow-fed control levels. We determined that the LDT409-induced weight-loss was associated with a combination of increased energy expenditure (detectable before weight loss was apparent), decreased food intake, increased systemic fat utilization, and increased fecal lipid excretion in HFD-fed mice. CONCLUSIONS Collectively, LDT409 represents a fatty acid mimetic that generates a uniquely favorable metabolic response for the treatment of multiple abnormalities including obesity, dyslipidemia, metabolic dysfunction-associated steatotic liver disease, and diabetes. LDT409 is derived from a highly abundant natural product-based starting material and its development could be pursued as a therapeutic solution to the global metabolic health crisis.
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Affiliation(s)
- Cigdem Sahin
- Department of Pharmaceutical Sciences, Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, ON M5S 3M2, Canada
| | - Jenna-Rose Melanson
- Department of Pharmaceutical Sciences, Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, ON M5S 3M2, Canada
| | - Florian Le Billan
- Department of Pharmaceutical Sciences, Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, ON M5S 3M2, Canada
| | - Lilia Magomedova
- Department of Pharmaceutical Sciences, Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, ON M5S 3M2, Canada
| | - Thais A M Ferreira
- Department of Pharmacy, Faculty of Health Sciences, University of Brasilia, Brasilia, DF 71910-900, Brazil
| | - Andressa S Oliveira
- Department of Pharmacy, Faculty of Health Sciences, University of Brasilia, Brasilia, DF 71910-900, Brazil
| | - Evan Pollock-Tahari
- Toronto General Hospital Research Institute, University Health Network, Toronto, ON, M5G 2C4, Canada
| | - Michael F Saikali
- Department of Pharmaceutical Sciences, Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, ON M5S 3M2, Canada
| | - Sarah B Cash
- Department of Pharmaceutical Sciences, Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, ON M5S 3M2, Canada
| | - Minna Woo
- Toronto General Hospital Research Institute, University Health Network, Toronto, ON, M5G 2C4, Canada; Banting and Best Diabetes Centre, Toronto, ON, M5G 2C4, Canada
| | - Luiz A S Romeiro
- Department of Pharmacy, Faculty of Health Sciences, University of Brasilia, Brasilia, DF 71910-900, Brazil
| | - Carolyn L Cummins
- Department of Pharmaceutical Sciences, Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, ON M5S 3M2, Canada; Banting and Best Diabetes Centre, Toronto, ON, M5G 2C4, Canada.
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12
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Lu D, He A, Tan M, Mrad M, El Daibani A, Hu D, Liu X, Kleiboeker B, Che T, Hsu FF, Bambouskova M, Semenkovich CF, Lodhi IJ. Liver ACOX1 regulates levels of circulating lipids that promote metabolic health through adipose remodeling. Nat Commun 2024; 15:4214. [PMID: 38760332 PMCID: PMC11101658 DOI: 10.1038/s41467-024-48471-2] [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: 08/23/2023] [Accepted: 04/29/2024] [Indexed: 05/19/2024] Open
Abstract
The liver gene expression of the peroxisomal β-oxidation enzyme acyl-coenzyme A oxidase 1 (ACOX1), which catabolizes very long chain fatty acids (VLCFA), increases in the context of obesity, but how this pathway impacts systemic energy metabolism remains unknown. Here, we show that hepatic ACOX1-mediated β-oxidation regulates inter-organ communication involved in metabolic homeostasis. Liver-specific knockout of Acox1 (Acox1-LKO) protects mice from diet-induced obesity, adipose tissue inflammation, and systemic insulin resistance. Serum from Acox1-LKO mice promotes browning in cultured white adipocytes. Global serum lipidomics show increased circulating levels of several species of ω-3 VLCFAs (C24-C28) with previously uncharacterized physiological role that promote browning, mitochondrial biogenesis and Glut4 translocation through activation of the lipid sensor GPR120 in adipocytes. This work identifies hepatic peroxisomal β-oxidation as an important regulator of metabolic homeostasis and suggests that manipulation of ACOX1 or its substrates may treat obesity-associated metabolic disorders.
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Affiliation(s)
- Dongliang Lu
- Division of Endocrinology, Metabolism & Lipid Research, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Anyuan He
- Division of Endocrinology, Metabolism & Lipid Research, Washington University School of Medicine, St. Louis, MO, 63110, USA
- School of Life Sciences, Anhui Medical University, Hefei, 230032, China
| | - Min Tan
- Division of Endocrinology, Metabolism & Lipid Research, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Marguerite Mrad
- Division of Endocrinology, Metabolism & Lipid Research, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Amal El Daibani
- Center for Clinical Pharmacology, Department of Anesthesiology, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Donghua Hu
- Division of Endocrinology, Metabolism & Lipid Research, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Xuejing Liu
- Division of Endocrinology, Metabolism & Lipid Research, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Brian Kleiboeker
- Division of Endocrinology, Metabolism & Lipid Research, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Tao Che
- Center for Clinical Pharmacology, Department of Anesthesiology, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Fong-Fu Hsu
- Division of Endocrinology, Metabolism & Lipid Research, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Monika Bambouskova
- Division of Endocrinology, Metabolism & Lipid Research, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Clay F Semenkovich
- Division of Endocrinology, Metabolism & Lipid Research, Washington University School of Medicine, St. Louis, MO, 63110, USA
- Department of Cell Biology and Physiology; Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Irfan J Lodhi
- Division of Endocrinology, Metabolism & Lipid Research, Washington University School of Medicine, St. Louis, MO, 63110, USA.
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13
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Bel’skaya LV, Dyachenko EI. Oxidative Stress in Breast Cancer: A Biochemical Map of Reactive Oxygen Species Production. Curr Issues Mol Biol 2024; 46:4646-4687. [PMID: 38785550 PMCID: PMC11120394 DOI: 10.3390/cimb46050282] [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: 04/05/2024] [Revised: 05/08/2024] [Accepted: 05/11/2024] [Indexed: 05/25/2024] Open
Abstract
This review systematizes information about the metabolic features of breast cancer directly related to oxidative stress. It has been shown those redox changes occur at all levels and affect many regulatory systems in the human body. The features of the biochemical processes occurring in breast cancer are described, ranging from nonspecific, at first glance, and strictly biochemical to hormone-induced reactions, genetic and epigenetic regulation, which allows for a broader and deeper understanding of the principles of oncogenesis, as well as maintaining the viability of cancer cells in the mammary gland. Specific pathways of the activation of oxidative stress have been studied as a response to the overproduction of stress hormones and estrogens, and specific ways to reduce its negative impact have been described. The diversity of participants that trigger redox reactions from different sides is considered more fully: glycolytic activity in breast cancer, and the nature of consumption of amino acids and metals. The role of metals in oxidative stress is discussed in detail. They can act as both co-factors and direct participants in oxidative stress, since they are either a trigger mechanism for lipid peroxidation or capable of activating signaling pathways that affect tumorigenesis. Special attention has been paid to the genetic and epigenetic regulation of breast tumors. A complex cascade of mechanisms of epigenetic regulation is explained, which made it possible to reconsider the existing opinion about the triggers and pathways for launching the oncological process, the survival of cancer cells and their ability to localize.
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Affiliation(s)
- Lyudmila V. Bel’skaya
- Biochemistry Research Laboratory, Omsk State Pedagogical University, 644099 Omsk, Russia;
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14
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Hjort L, Bredgaard SS, Manitta E, Marques I, Sørensen AE, Martino D, Grunnet LG, Kelstrup L, Houshmand-Oeregaard A, Clausen TD, Mathiesen ER, Olsen SF, Saffery R, Barrès R, Damm P, Vaag AA, Dalgaard LT. Epigenetics of the non-coding RNA nc886 across blood, adipose tissue and skeletal muscle in offspring exposed to diabetes in pregnancy. Clin Epigenetics 2024; 16:61. [PMID: 38715048 PMCID: PMC11077860 DOI: 10.1186/s13148-024-01673-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Accepted: 04/20/2024] [Indexed: 05/12/2024] Open
Abstract
BACKGROUND Diabetes in pregnancy is associated with increased risk of long-term metabolic disease in the offspring, potentially mediated by in utero epigenetic variation. Previously, we identified multiple differentially methylated single CpG sites in offspring of women with gestational diabetes mellitus (GDM), but whether stretches of differentially methylated regions (DMRs) can also be identified in adolescent GDM offspring is unknown. Here, we investigate which DNA regions in adolescent offspring are differentially methylated in blood by exposure to diabetes in pregnancy. The secondary aim was to characterize the RNA expression of the identified DMR, which contained the nc886 non-coding RNA. METHODS To identify DMRs, we employed the bump hunter method in samples from young (9-16 yr, n = 92) offspring of women with GDM (O-GDM) and control offspring (n = 94). Validation by pyrosequencing was performed in an adult offspring cohort (age 28-33 years) consisting of O-GDM (n = 82), offspring exposed to maternal type 1 diabetes (O-T1D, n = 67) and control offspring (O-BP, n = 57). RNA-expression was measured using RT-qPCR in subcutaneous adipose tissue and skeletal muscle. RESULTS One significant DMR represented by 10 CpGs with a bimodal methylation pattern was identified, located in the nc886/VTRNA2-1 non-coding RNA gene. Low methylation status across all CpGs of the nc886 in the young offspring was associated with maternal GDM. While low methylation degree in adult offspring in blood, adipose tissue, and skeletal muscle was not associated with maternal GDM, adipose tissue nc886 expression was increased in O-GDM compared to O-BP, but not in O-T1D. In addition, adipose tissue nc886 expression levels were positively associated with maternal pre-pregnancy BMI (p = 0.006), but not with the offspring's own adiposity. CONCLUSIONS Our results highlight that nc886 is a metastable epiallele, whose methylation in young offspring is negatively correlated with maternal obesity and GDM status. The physiological effect of nc886 may be more important in adipose tissue than in skeletal muscle. Further research should aim to investigate how nc886 regulation in adipose tissue by exposure to GDM may contribute to development of metabolic disease.
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Affiliation(s)
- Line Hjort
- Novo Nordisk Foundation Center for Basic Metabolic Research, Metabolic Epigenetics Group, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
- Center for Pregnant Women With Diabetes, Department of Obstetrics, Rigshospitalet, Copenhagen, Denmark.
| | | | - Eleonora Manitta
- Novo Nordisk Foundation Center for Basic Metabolic Research, Metabolic Epigenetics Group, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Irene Marques
- Center for Pregnant Women With Diabetes, Department of Obstetrics, Rigshospitalet, Copenhagen, Denmark
| | | | - David Martino
- Murdoch Children's Research Institute, Parkville, Melbourne, VIC, Australia
- Wal-Yan Respiratory Research Centre, Telethon Kids Institute, Perth Children's Hospital, Nedlands, WA, Australia
| | - Louise Groth Grunnet
- Clinical Research, Steno Diabetes Center Copenhagen, Herlev Hospital, Herlev, Denmark
| | - Louise Kelstrup
- Center for Pregnant Women With Diabetes, Department of Obstetrics, Rigshospitalet, Copenhagen, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
- Department of Gynecology and Obstetrics, Herlev Hospital, Herlev, Denmark
| | - Azadeh Houshmand-Oeregaard
- Center for Pregnant Women With Diabetes, Department of Obstetrics, Rigshospitalet, Copenhagen, Denmark
- Novo Nordisk A/S, Bagsværd, Denmark
| | - Tine Dalsgaard Clausen
- Center for Pregnant Women With Diabetes, Department of Obstetrics, Rigshospitalet, Copenhagen, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Elisabeth Reinhardt Mathiesen
- Center for Pregnant Women With Diabetes, Department of Obstetrics, Rigshospitalet, Copenhagen, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
- Department of Endocrinology, Rigshospitalet, Copenhagen, Denmark
| | | | - Richard Saffery
- Murdoch Children's Research Institute, Parkville, Melbourne, VIC, Australia
- Department of Paediatrics, University of Melbourne, Melbourne, VIC, Australia
| | - Romain Barrès
- Novo Nordisk Foundation Center for Basic Metabolic Research, Metabolic Epigenetics Group, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Peter Damm
- Center for Pregnant Women With Diabetes, Department of Obstetrics, Rigshospitalet, Copenhagen, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Allan Arthur Vaag
- Clinical Research, Steno Diabetes Center Copenhagen, Herlev Hospital, Herlev, Denmark
- Department of Clinical Sciences, Lund University, Malmö, Sweden
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15
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Maaliki D, Jaffa AA, Nasser S, Sahebkar A, Eid AH. Adrenoceptor Desensitization: Current Understanding of Mechanisms. Pharmacol Rev 2024; 76:358-387. [PMID: 38697858 DOI: 10.1124/pharmrev.123.000831] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 01/15/2024] [Accepted: 01/18/2024] [Indexed: 05/05/2024] Open
Abstract
G-protein coupled receptors (GPCRs) transduce a wide range of extracellular signals. They are key players in the majority of biologic functions including vision, olfaction, chemotaxis, and immunity. However, as essential as most of them are to body function and homeostasis, overactivation of GPCRs has been implicated in many pathologic diseases such as cancer, asthma, and heart failure (HF). Therefore, an important feature of G protein signaling systems is the ability to control GPCR responsiveness, and one key process to control overstimulation involves initiating receptor desensitization. A number of steps are appreciated in the desensitization process, including cell surface receptor phosphorylation, internalization, and downregulation. Rapid or short-term desensitization occurs within minutes and involves receptor phosphorylation via the action of intracellular protein kinases, the binding of β-arrestins, and the consequent uncoupling of GPCRs from their cognate heterotrimeric G proteins. On the other hand, long-term desensitization occurs over hours to days and involves receptor downregulation or a decrease in cell surface receptor protein level. Of the proteins involved in this biologic phenomenon, β-arrestins play a particularly significant role in both short- and long-term desensitization mechanisms. In addition, β-arrestins are involved in the phenomenon of biased agonism, where the biased ligand preferentially activates one of several downstream signaling pathways, leading to altered cellular responses. In this context, this review discusses the different patterns of desensitization of the α 1-, α 2- and the β adrenoceptors and highlights the role of β-arrestins in regulating physiologic responsiveness through desensitization and biased agonism. SIGNIFICANCE STATEMENT: A sophisticated network of proteins orchestrates the molecular regulation of GPCR activity. Adrenoceptors are GPCRs that play vast roles in many physiological processes. Without tightly controlled desensitization of these receptors, homeostatic imbalance may ensue, thus precipitating various diseases. Here, we critically appraise the mechanisms implicated in adrenoceptor desensitization. A better understanding of these mechanisms helps identify new druggable targets within the GPCR desensitization machinery and opens exciting therapeutic fronts in the treatment of several pathologies.
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Affiliation(s)
- Dina Maaliki
- Department of Pharmacology and Toxicology, American University of Beirut, Beirut, Lebanon (D.M.); School of Medicine, University of South Carolina, Columbia, South Carolina (A.A.J.); Keele University, Staffordshire, United Kingdom (S.N.); Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran (A.S.); Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran (A.S.); and Department of Basic Medical Sciences, College of Medicine, QU Health, Qatar University, Doha, Qatar (A.H.E.)
| | - Aneese A Jaffa
- Department of Pharmacology and Toxicology, American University of Beirut, Beirut, Lebanon (D.M.); School of Medicine, University of South Carolina, Columbia, South Carolina (A.A.J.); Keele University, Staffordshire, United Kingdom (S.N.); Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran (A.S.); Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran (A.S.); and Department of Basic Medical Sciences, College of Medicine, QU Health, Qatar University, Doha, Qatar (A.H.E.)
| | - Suzanne Nasser
- Department of Pharmacology and Toxicology, American University of Beirut, Beirut, Lebanon (D.M.); School of Medicine, University of South Carolina, Columbia, South Carolina (A.A.J.); Keele University, Staffordshire, United Kingdom (S.N.); Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran (A.S.); Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran (A.S.); and Department of Basic Medical Sciences, College of Medicine, QU Health, Qatar University, Doha, Qatar (A.H.E.)
| | - Amirhossein Sahebkar
- Department of Pharmacology and Toxicology, American University of Beirut, Beirut, Lebanon (D.M.); School of Medicine, University of South Carolina, Columbia, South Carolina (A.A.J.); Keele University, Staffordshire, United Kingdom (S.N.); Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran (A.S.); Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran (A.S.); and Department of Basic Medical Sciences, College of Medicine, QU Health, Qatar University, Doha, Qatar (A.H.E.)
| | - Ali H Eid
- Department of Pharmacology and Toxicology, American University of Beirut, Beirut, Lebanon (D.M.); School of Medicine, University of South Carolina, Columbia, South Carolina (A.A.J.); Keele University, Staffordshire, United Kingdom (S.N.); Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran (A.S.); Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran (A.S.); and Department of Basic Medical Sciences, College of Medicine, QU Health, Qatar University, Doha, Qatar (A.H.E.)
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16
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Li X, Su Y, Xu Y, Hu T, Lu X, Sun J, Li W, Zhou J, Ma X, Yang Y, Bao Y. Adipocyte-Specific Hnrnpa1 Knockout Aggravates Obesity-Induced Metabolic Dysfunction via Upregulation of CCL2. Diabetes 2024; 73:713-727. [PMID: 38320300 PMCID: PMC11043064 DOI: 10.2337/db23-0609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Accepted: 01/28/2024] [Indexed: 02/08/2024]
Abstract
Heterogeneous nuclear ribonucleoprotein A1 (HNRNPA1) is involved in lipid and glucose metabolism via mRNA processing. However, whether and how HNRNPA1 alters adipocyte function in obesity remain obscure. Here, we found that the obese state downregulated HNRNPA1 expression in white adipose tissue (WAT). The depletion of adipocyte HNRNPA1 promoted markedly increased macrophage infiltration and expression of proinflammatory and fibrosis genes in WAT of obese mice, eventually leading to exacerbated insulin sensitivity, glucose tolerance, and hepatic steatosis. Mechanistically, HNRNPA1 interacted with Ccl2 and regulated its mRNA stability. Intraperitoneal injection of CCL2-CCR2 signaling antagonist improved adipose tissue inflammation and systemic glucose homeostasis. Furthermore, HNRNPA1 expression in human WAT was negatively correlated with BMI, fat percentage, and subcutaneous fat area. Among individuals with 1-year metabolic surgery follow-up, HNRNPA1 expression was positively related to percentage of total weight loss. These findings identify adipocyte HNRNPA1 as a link between adipose tissue inflammation and systemic metabolic homeostasis, which might be a promising therapeutic target for obesity-related disorders. ARTICLE HIGHLIGHTS
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Affiliation(s)
- Xiaoya Li
- Department of Endocrinology and Metabolism, Shanghai Diabetes Institute, Shanghai Clinical Center for Diabetes, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Key Clinical Center for Metabolic Disease, Shanghai Jiao Tong University School of Medicine Affiliated Sixth People’s Hospital, Shanghai, China
| | - Yingying Su
- Department of Endocrinology and Metabolism, Shanghai Diabetes Institute, Shanghai Clinical Center for Diabetes, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Key Clinical Center for Metabolic Disease, Shanghai Jiao Tong University School of Medicine Affiliated Sixth People’s Hospital, Shanghai, China
| | - Yiting Xu
- Department of Endocrinology and Metabolism, Shanghai Diabetes Institute, Shanghai Clinical Center for Diabetes, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Key Clinical Center for Metabolic Disease, Shanghai Jiao Tong University School of Medicine Affiliated Sixth People’s Hospital, Shanghai, China
| | - Tingting Hu
- Department of Endocrinology and Metabolism, Shanghai Diabetes Institute, Shanghai Clinical Center for Diabetes, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Key Clinical Center for Metabolic Disease, Shanghai Jiao Tong University School of Medicine Affiliated Sixth People’s Hospital, Shanghai, China
| | - Xuhong Lu
- Department of Endocrinology and Metabolism, Shanghai Diabetes Institute, Shanghai Clinical Center for Diabetes, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Key Clinical Center for Metabolic Disease, Shanghai Jiao Tong University School of Medicine Affiliated Sixth People’s Hospital, Shanghai, China
| | - Jingjing Sun
- Department of Endocrinology and Metabolism, Shanghai Diabetes Institute, Shanghai Clinical Center for Diabetes, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Key Clinical Center for Metabolic Disease, Shanghai Jiao Tong University School of Medicine Affiliated Sixth People’s Hospital, Shanghai, China
| | - Wenfei Li
- Department of Endocrinology and Metabolism, Shanghai Diabetes Institute, Shanghai Clinical Center for Diabetes, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Key Clinical Center for Metabolic Disease, Shanghai Jiao Tong University School of Medicine Affiliated Sixth People’s Hospital, Shanghai, China
| | - Jian Zhou
- Department of Endocrinology and Metabolism, Shanghai Diabetes Institute, Shanghai Clinical Center for Diabetes, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Key Clinical Center for Metabolic Disease, Shanghai Jiao Tong University School of Medicine Affiliated Sixth People’s Hospital, Shanghai, China
| | - Xiaojing Ma
- Department of Endocrinology and Metabolism, Shanghai Diabetes Institute, Shanghai Clinical Center for Diabetes, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Key Clinical Center for Metabolic Disease, Shanghai Jiao Tong University School of Medicine Affiliated Sixth People’s Hospital, Shanghai, China
| | - Ying Yang
- Department of Endocrinology and Metabolism, Shanghai Diabetes Institute, Shanghai Clinical Center for Diabetes, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Key Clinical Center for Metabolic Disease, Shanghai Jiao Tong University School of Medicine Affiliated Sixth People’s Hospital, Shanghai, China
| | - Yuqian Bao
- Department of Endocrinology and Metabolism, Shanghai Diabetes Institute, Shanghai Clinical Center for Diabetes, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Key Clinical Center for Metabolic Disease, Shanghai Jiao Tong University School of Medicine Affiliated Sixth People’s Hospital, Shanghai, China
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Priscilla L, Yoo C, Jang S, Park S, Lim G, Kim T, Lee DY. Immunotherapy targeting the obese white adipose tissue microenvironment: Focus on non-communicable diseases. Bioact Mater 2024; 35:461-476. [PMID: 38404641 PMCID: PMC10884763 DOI: 10.1016/j.bioactmat.2024.01.027] [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: 09/29/2023] [Revised: 01/14/2024] [Accepted: 01/30/2024] [Indexed: 02/27/2024] Open
Abstract
Obesity triggers inflammatory responses in the microenvironment of white adipose tissue, resulting in chronic systemic inflammation and the subsequent development of non-communicable diseases, including type 2 diabetes, coronary heart disease, and breast cancer. Current therapy approaches for obesity-induced non-communicable diseases persist in prioritizing symptom remission while frequently overlooking the criticality of targeting and alleviating inflammation at its source. Accordingly, this review highlights the importance of the microenvironment of obese white adipose tissue and the promising potential of employing immunotherapy to target it as an effective therapeutic approach for non-communicable diseases induced by obesity. Additionally, this review discusses the challenges and offers perspective about the immunotherapy targeting the microenvironment of obese white adipose tissue.
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Affiliation(s)
- Lia Priscilla
- Department of Bioengineering, College of Engineering, and BK FOUR Biopharmaceutical Innovation Leader for Education and Research Group, Hanyang University, Seoul, 04763, Republic of Korea
| | - Chaerim Yoo
- Department of Bioengineering, College of Engineering, and BK FOUR Biopharmaceutical Innovation Leader for Education and Research Group, Hanyang University, Seoul, 04763, Republic of Korea
| | - Seonmi Jang
- Department of Bioengineering, College of Engineering, and BK FOUR Biopharmaceutical Innovation Leader for Education and Research Group, Hanyang University, Seoul, 04763, Republic of Korea
| | - Sewon Park
- Department of Bioengineering, College of Engineering, and BK FOUR Biopharmaceutical Innovation Leader for Education and Research Group, Hanyang University, Seoul, 04763, Republic of Korea
| | - Gayoung Lim
- Department of Bioengineering, College of Engineering, and BK FOUR Biopharmaceutical Innovation Leader for Education and Research Group, Hanyang University, Seoul, 04763, Republic of Korea
| | - Taekyun Kim
- Department of Bioengineering, College of Engineering, and BK FOUR Biopharmaceutical Innovation Leader for Education and Research Group, Hanyang University, Seoul, 04763, Republic of Korea
| | - Dong Yun Lee
- Department of Bioengineering, College of Engineering, and BK FOUR Biopharmaceutical Innovation Leader for Education and Research Group, Hanyang University, Seoul, 04763, Republic of Korea
- Institute of Nano Science and Technology (INST) & Institute for Bioengineering and Biopharmaceutical Research (IBBR), Hanyang University, Seoul, 04763, Republic of Korea
- Elixir Pharmatech Inc., Seoul, 07463, Republic of Korea
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18
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Li C, Zhang H, Wu H, Li J, Liu Q, Li Y, Pan M, Zhao X, Wei Q, Peng S, Ma B. Intermittent fasting improves the oocyte quality of obese mice through the regulation of maternal mRNA storage and translation by LSM14B. Free Radic Biol Med 2024; 217:157-172. [PMID: 38552928 DOI: 10.1016/j.freeradbiomed.2024.03.021] [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: 01/04/2024] [Revised: 03/11/2024] [Accepted: 03/26/2024] [Indexed: 04/04/2024]
Abstract
Obesity has significant repercussions for female reproductive health, including adverse effects on oocyte quality, fertility, embryo development and offspring health. Here, we showed that intermittent fasting (IF) has several notable effects on follicular development, oocyte development and maturation and offspring health in obese mice. IF treatment prevents obesity-associated germline-soma communication defects, mitochondrial dysfunction, oxidative damage, apoptosis, and spindle/chromosomal disruption. RNA-sequencing analysis of oocytes from normal diet (ND), high-fat diet (HFD), and HFD + IF mice indicated that IF treatment improved mitochondrial oxidative phosphorylation function and mRNA storage and translation, which was potentially mediated by the Smith-like family member 14 B (LSM14B). Knockdown of LSM14B by siRNA injection in oocytes from ND mice recapitulates all the translation, mitochondrial dysfunction and meiotic defect phenotypes of oocytes from HFD mice. Remarkably, the injection of Lsm14b mRNA into oocytes from HFD mice rescued the translation, mitochondrial dysfunction and meiotic defect phenotypes. These results demonstrated that dysfunction in the oocyte translation program is associated with obesity-induced meiotic defects, while IF treatment increased LSM14B expression and maternal mRNA translation and restored oocyte quality. This research has important implications for understanding the effects of obesity on female reproductive health and offers a potential nonpharmacological intervention to improve oocyte quality and fertility in obese individuals.
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Affiliation(s)
- Chan Li
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, People's Republic of China; Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling, Shaanxi, People's Republic of China
| | - Hui Zhang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, People's Republic of China; Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling, Shaanxi, People's Republic of China
| | - Hao Wu
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, People's Republic of China; Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling, Shaanxi, People's Republic of China
| | - Jingmei Li
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, People's Republic of China; Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling, Shaanxi, People's Republic of China
| | - Qingyang Liu
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, People's Republic of China; Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling, Shaanxi, People's Republic of China
| | - Yanxue Li
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, People's Republic of China; Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling, Shaanxi, People's Republic of China
| | - Menghao Pan
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, People's Republic of China; Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling, Shaanxi, People's Republic of China
| | - Xiaoe Zhao
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, People's Republic of China; Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling, Shaanxi, People's Republic of China
| | - Qiang Wei
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, People's Republic of China; Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling, Shaanxi, People's Republic of China
| | - Sha Peng
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, People's Republic of China; Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling, Shaanxi, People's Republic of China.
| | - Baohua Ma
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, People's Republic of China; Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling, Shaanxi, People's Republic of China.
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19
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Tindall CA, Möhlis K, Rapöhn I, Dommel S, Riedl V, Schneekönig M, Höfling C, Roßner S, Stichel J, Beck-Sickinger AG, Weiner J, Heiker JT. LRP1 is the cell-surface endocytosis receptor for vaspin in adipocytes. FEBS J 2024; 291:2134-2154. [PMID: 37921063 DOI: 10.1111/febs.16991] [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: 07/06/2023] [Revised: 09/12/2023] [Accepted: 10/31/2023] [Indexed: 11/04/2023]
Abstract
Vaspin is a serine protease inhibitor that protects against adipose tissue inflammation and insulin resistance, two key drivers of adipocyte dysfunction and metabolic disorders in obesity. Inhibition of target proteases such as KLK7 has been shown to reduce adipose tissue inflammation in obesity, while vaspin binding to cell surface GRP78 has been linked to reduced obesity-induced ER stress and insulin resistance in the liver. However, the molecular mechanisms by which vaspin directly affects cellular processes in adipocytes remain unknown. Using fluorescently labeled vaspin, we found that vaspin is rapidly internalized by mouse and human adipocytes, but less efficiently by endothelial, kidney, liver, and neuronal cells. Internalization occurs by active, clathrin-mediated endocytosis, which is dependent on vaspin binding to the LRP1 receptor, rather than GRP78 as previously thought. This was demonstrated by competition experiments and RNAi-mediated knock-down in adipocytes and by rescuing vaspin internalization in LRP1-deficient Pea13 cells after transfection with a functional LRP1 minireceptor. Vaspin internalization is further increased in mature adipocytes after insulin-stimulated translocation of LRP1. Although vaspin has nanomolar affinity for LRP1 clusters II-IV, binding to cell surface heparan sulfates is required for efficient LRP1-mediated internalization. Native, but not cleaved vaspin, and also vaspin polymers are efficiently endocytosed, and ultimately targeted for lysosomal degradation. Our study provides mechanistic insight into the uptake and degradation of vaspin in adipocytes, thereby broadening our understanding of its functional repertoire. We hypothesize the vaspin-LRP1 axis to be an important mediator of vaspin effects not only in adipose tissue but also in other LRP1-expressing cells.
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Affiliation(s)
- Catherine A Tindall
- Helmholtz Institute for Metabolic, Obesity and Vascular Research (HI-MAG) of the Helmholtz Zentrum München at the University of Leipzig and University Hospital Leipzig, Germany
- Faculty of Life Sciences, Institute of Biochemistry, University of Leipzig, Germany
| | - Kevin Möhlis
- Helmholtz Institute for Metabolic, Obesity and Vascular Research (HI-MAG) of the Helmholtz Zentrum München at the University of Leipzig and University Hospital Leipzig, Germany
| | - Inka Rapöhn
- Helmholtz Institute for Metabolic, Obesity and Vascular Research (HI-MAG) of the Helmholtz Zentrum München at the University of Leipzig and University Hospital Leipzig, Germany
| | - Sebastian Dommel
- Helmholtz Institute for Metabolic, Obesity and Vascular Research (HI-MAG) of the Helmholtz Zentrum München at the University of Leipzig and University Hospital Leipzig, Germany
- Faculty of Life Sciences, Institute of Biochemistry, University of Leipzig, Germany
| | - Veronika Riedl
- Faculty of Life Sciences, Institute of Biochemistry, University of Leipzig, Germany
| | - Michael Schneekönig
- Helmholtz Institute for Metabolic, Obesity and Vascular Research (HI-MAG) of the Helmholtz Zentrum München at the University of Leipzig and University Hospital Leipzig, Germany
| | - Corinna Höfling
- Paul Flechsig Institute for Brain Research, University of Leipzig, Germany
| | - Steffen Roßner
- Paul Flechsig Institute for Brain Research, University of Leipzig, Germany
| | - Jan Stichel
- Faculty of Life Sciences, Institute of Biochemistry, University of Leipzig, Germany
| | | | - Juliane Weiner
- Medical Department III - Endocrinology, Nephrology, Rheumatology, University of Leipzig Medical Center, Germany
| | - John T Heiker
- Helmholtz Institute for Metabolic, Obesity and Vascular Research (HI-MAG) of the Helmholtz Zentrum München at the University of Leipzig and University Hospital Leipzig, Germany
- Faculty of Life Sciences, Institute of Biochemistry, University of Leipzig, Germany
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20
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Melini S, Lama A, Comella F, Opallo N, Del Piano F, Annunziata C, Mollica MP, Ferrante MC, Pirozzi C, Mattace Raso G, Meli R. Targeting liver and adipose tissue in obese mice: Effects of a N-acylethanolamine mixture on insulin resistance and adipocyte reprogramming. Biomed Pharmacother 2024; 174:116531. [PMID: 38574624 DOI: 10.1016/j.biopha.2024.116531] [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: 03/04/2024] [Revised: 03/28/2024] [Accepted: 03/29/2024] [Indexed: 04/06/2024] Open
Abstract
N-acylethanolamines (NAEs) are endogenous lipid-signalling molecules involved in inflammation and energy metabolism. The potential pharmacological effect of NAE association in managing inflammation-based metabolic disorders is unexplored. To date, targeting liver-adipose axis can be considered a therapeutic approach for the treatment of obesity and related dysfunctions. Here, we investigated the metabolic effect of OLALIAMID® (OLA), an olive oil-derived NAE mixture, in limiting liver and adipose tissue (AT) dysfunction of high-fat diet (HFD)-fed mice. OLA reduced body weight and fat mass in obese mice, decreasing insulin resistance (IR), as shown by homeostasis model assessment index, and leptin/adiponectin ratio, a marker of adipocyte dysfunction. OLA improved serum lipid and hepatic profile and the immune/inflammatory pattern of metainflammation. In liver of HFD mice, OLA treatment counteracted glucose and lipid dysmetabolism, restoring insulin signalling (phosphorylation of AKT and AMPK), and reducing mRNAs of key markers of fatty acid accumulation. Furthermore, OLA positively affected AT function deeply altered by HFD by reprogramming of genes involved in thermogenesis of interscapular brown AT (iBAT) and subcutaneous white AT (scWAT), and inducing the beigeing of scWAT. Notably, the NAE mixture reduced inflammation in iBAT and promoted M1-to-M2 macrophage shift in scWAT of obese mice. The tissue and systemic anti-inflammatory effects of OLA and the increased expression of glucose transporter 4 in scWAT contributed to the improvement of gluco-lipid toxicity and insulin sensitivity. In conclusion, we demonstrated that this olive oil-derived NAE mixture is a valid nutritional strategy to counteract IR and obesity acting on liver-AT crosstalk, restoring both hepatic and AT function and metabolism.
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Affiliation(s)
- S Melini
- Department of Pharmacy, School of Medicine, University of Naples Federico II, Naples 80131, Italy
| | - A Lama
- Department of Pharmacy, School of Medicine, University of Naples Federico II, Naples 80131, Italy
| | - F Comella
- Department of Pharmacy, School of Medicine, University of Naples Federico II, Naples 80131, Italy
| | - N Opallo
- Department of Pharmacy, School of Medicine, University of Naples Federico II, Naples 80131, Italy
| | - F Del Piano
- Department of Veterinary Medicine and Animal Productions, University of Naples Federico II, Naples 80137, Italy
| | - C Annunziata
- Department of Bioscience and Nutrition Karolinska Institute Neo Building, Huddinge 14152, Sweden
| | - M P Mollica
- Department of Biology, University of Naples Federico II, Naples 80126, Italy
| | - M C Ferrante
- Department of Veterinary Medicine and Animal Productions, University of Naples Federico II, Naples 80137, Italy
| | - C Pirozzi
- Department of Pharmacy, School of Medicine, University of Naples Federico II, Naples 80131, Italy.
| | - G Mattace Raso
- Department of Pharmacy, School of Medicine, University of Naples Federico II, Naples 80131, Italy
| | - R Meli
- Department of Pharmacy, School of Medicine, University of Naples Federico II, Naples 80131, Italy
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21
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Patra D, Ramprasad P, Sharma S, Dey U, Kumar V, Singh S, Dasgupta S, Kumar A, Tikoo K, Pal D. Adipose tissue macrophage-derived microRNA-210-3p disrupts systemic insulin sensitivity by silencing GLUT4 in obesity. J Biol Chem 2024; 300:107328. [PMID: 38679332 PMCID: PMC11145551 DOI: 10.1016/j.jbc.2024.107328] [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: 01/27/2024] [Revised: 04/08/2024] [Accepted: 04/18/2024] [Indexed: 05/01/2024] Open
Abstract
Management of chronic obesity-associated metabolic disorders is a key challenge for biomedical researchers. During chronic obesity, visceral adipose tissue (VAT) undergoes substantial transformation characterized by a unique lipid-rich hypoxic AT microenvironment which plays a crucial role in VAT dysfunction, leading to insulin resistance (IR) and type 2 diabetes. Here, we demonstrate that obese AT microenvironment triggers the release of miR-210-3p microRNA-loaded extracellular vesicles from adipose tissue macrophages, which disseminate miR-210-3p to neighboring adipocytes, skeletal muscle cells, and hepatocytes through paracrine and endocrine actions, thereby influencing insulin sensitivity. Moreover, EVs collected from Dicer-silenced miR-210-3p-overexpressed bone marrow-derived macrophages induce glucose intolerance and IR in lean mice. Mechanistically, miR-210-3p interacts with the 3'-UTR of GLUT4 mRNA and silences its expression, compromising cellular glucose uptake and insulin sensitivity. Therapeutic inhibition of miR-210-3p in VAT notably rescues high-fat diet-fed mice from obesity-induced systemic glucose intolerance. Thus, targeting adipose tissue macrophage-specific miR-210-3p during obesity could be a promising strategy for managing IR and type 2 diabetes.
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Affiliation(s)
- Debarun Patra
- Department of Biomedical Engineering, Indian Institute of Technology Ropar, Rupnagar, Punjab, India
| | - Palla Ramprasad
- Department of Biomedical Engineering, Indian Institute of Technology Ropar, Rupnagar, Punjab, India
| | - Shivam Sharma
- Department of Pharmacology and Toxicology, NIPER, S.A.S. Nagar, Punjab, India
| | - Upalabdha Dey
- Department of Molecular Biology & Biotechnology, Tezpur University, Tezpur, Assam, India
| | - Vinod Kumar
- Department of Pharmacology and Toxicology, NIPER, S.A.S. Nagar, Punjab, India
| | - Satpal Singh
- Department of Gastro Surgery, DMC&H, Ludhiana, Punjab, India
| | - Suman Dasgupta
- Department of Molecular Biology & Biotechnology, Tezpur University, Tezpur, Assam, India
| | - Aditya Kumar
- Department of Molecular Biology & Biotechnology, Tezpur University, Tezpur, Assam, India
| | - Kulbhushan Tikoo
- Department of Pharmacology and Toxicology, NIPER, S.A.S. Nagar, Punjab, India
| | - Durba Pal
- Department of Biomedical Engineering, Indian Institute of Technology Ropar, Rupnagar, Punjab, India.
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22
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Traidl S, Hollstein MM, Kroeger N, Fischer S, Heratizadeh A, Heinrich L, Kind B, Siegels D, Abraham S, Schäfer T, Augustin M, Harder I, Pinter A, Schäkel K, Wollenberg A, Ertner K, Ramaker-Brunke J, Bong A, Quist S, Gorriahn-Maiterth H, Schenck F, Sticherling M, Effendy I, Schwarz B, Handrick C, Asmussen A, Weidinger S, Schmitt J, Werfel T. Obesity is linked to disease severity in moderate to severe atopic dermatitis-Data from the prospective observational TREATgermany registry. J Eur Acad Dermatol Venereol 2024. [PMID: 38661511 DOI: 10.1111/jdv.20042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Accepted: 03/22/2024] [Indexed: 04/26/2024]
Abstract
BACKGROUND There are conflicting data on a potential association between obesity and atopic dermatitis (AD). The purpose of this study was to investigate the relationship between obesity and AD disease severity. METHODS Patients from the TREATgermany registry cohort were divided into three groups according to their body mass index (BMI). Due to low numbers, underweight patients (BMI <18.5 kg/m2) were excluded from the analysis. Physician- and patient-reported disease severity scores as well as additional phenotypic characteristics were evaluated for association with BMI. Generalized linear mixed models and multinomial logit models, respectively, were applied to investigate the association of BMI, age, sex and current systemic AD treatment with disease severity. RESULTS This study encompassed 1416 patients, of which 234 (16.5%) were obese (BMI ≥30 kg/m2). Obesity was associated with lower educational background and smoking. Otherwise, obese and non-obese AD patients had similar baseline characteristics. Increased BMI was associated with higher oSCORAD (adjusted β: 1.24, 95% CI: 1.05-1.46, p = 0.013) and Patient-oriented eczema measure (POEM) (adjusted β: 1.09, 95% CI: 1.01-1.17, p = 0.038). However, the absolute difference in the overall oSCORAD was small between obese and non-obese AD patients (Δ oSCORAD = 2.5). Allergic comorbidity was comparable between all three groups, with the exception of asthma which was more pronounced in obese patients (p < 0.001). DISCUSSION In this large and well-characterized AD patient cohort, obesity is significantly associated with physician- and patient-assessed measures of AD disease severity. However, the corresponding effect sizes were low and of questionable clinical relevance. The overall prevalence of obesity among the German AD patients was lower than in studies on other AD cohorts from different countries, which confirms previous research on the German population and suggests regional differences in the interdependence of AD and obesity prevalence.
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Affiliation(s)
- Stephan Traidl
- Department of Dermatology and Allergy, Hannover Medical School, Hannover, Germany
| | - Moritz M Hollstein
- Department of Dermatology, Venereology and Allergology, University Medical Centre Göttingen, Göttingen, Germany
| | - Nadine Kroeger
- Department of Dermatology and Allergy, Hannover Medical School, Hannover, Germany
| | - Sascha Fischer
- Department of Dermatology and Allergy, Hannover Medical School, Hannover, Germany
| | - Annice Heratizadeh
- Department of Dermatology and Allergy, Hannover Medical School, Hannover, Germany
| | - Luise Heinrich
- Center for Evidence-Based Healthcare, University Hospital Carl Gustav Carus and Carl Gustav Carus Faculty of Medicine, Technische Universitaet Dresden, Dresden, Germany
| | - Barbara Kind
- Center for Evidence-Based Healthcare, University Hospital Carl Gustav Carus and Carl Gustav Carus Faculty of Medicine, Technische Universitaet Dresden, Dresden, Germany
| | - Doreen Siegels
- Center for Evidence-Based Healthcare, University Hospital Carl Gustav Carus and Carl Gustav Carus Faculty of Medicine, Technische Universitaet Dresden, Dresden, Germany
| | - Susanne Abraham
- Department of Dermatology, University Allergy Center, Medical Faculty Carl Gustav Carus, Technical University Dresden, Dresden, Germany
| | - Thomas Schäfer
- Practice Dr. med. Thomas Schaefer/Dr. med. Doreen Belz, Derma Koeln, Koeln, Germany
| | - Matthias Augustin
- Institute for Health Services Research in Dermatology Hamburg, University Medical Center Hamburg Eppendorf, Hamburg, Germany
| | - Inken Harder
- Center for Inflammatory Skin Diseases, Department of Dermatology and Allergy, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - Andreas Pinter
- Department of Dermatology, Venereology and Allergology, Clinical Research, University Hospital, Frankfurt am Main, Germany
| | - Knut Schäkel
- Department of Dermatology, Ruprecht-Karls University Heidelberg, Heidelberg, Germany
| | - Andreas Wollenberg
- Department of Dermatology and Allergy, Ludwig Maximilian University, Munich, Germany
- Department of Dermatology and Allergy, University Hospital Augsburg, Augsburg, Germany
- Comprehensive Center for Inflammation Medicine, University of Luebeck, Luebeck, Germany
| | | | | | - Anne Bong
- Practice Dr. med. Anne Bong, Emmerich, Germany
| | - Sven Quist
- Dermatology Clinic, Helix Medical Excellence Center Mainz, Mainz, Germany
| | | | | | - Michael Sticherling
- Department of Dermatology, University, German Center for Immunotherapy, Erlangen, Germany
| | - Isaak Effendy
- Department of Dermatology Venereology and Allergology, University Hospital - Medical School OWL - University of Bielefeld, Rosenhoehe, Bielefeld, Germany
| | | | | | - Andrea Asmussen
- Practice Dr. med. Andrea Asmussen, Dermatology at Lesum, Bremen, Germany
| | - Stephan Weidinger
- Center for Inflammatory Skin Diseases, Department of Dermatology and Allergy, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - Jochen Schmitt
- Center for Evidence-Based Healthcare, University Hospital Carl Gustav Carus and Carl Gustav Carus Faculty of Medicine, Technische Universitaet Dresden, Dresden, Germany
| | - Thomas Werfel
- Department of Dermatology and Allergy, Hannover Medical School, Hannover, Germany
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23
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Lin SX, Yang C, Jiang RS, Wu C, Lang DQ, Wang YL, Li XY, Jiang CP, Liu Q, Shen CY. Flavonoid extracts of Citrus aurantium L. var. amara Engl. Promote browning of white adipose tissue in high-fat diet-induced mice. JOURNAL OF ETHNOPHARMACOLOGY 2024; 324:117749. [PMID: 38219880 DOI: 10.1016/j.jep.2024.117749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 12/26/2023] [Accepted: 01/09/2024] [Indexed: 01/16/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Obesity has become a public burden worldwide due to its booming incidence and various complications, and browning of white adipose tissue (WAT) is recognized as a hopeful strategy to combat it. Blossom of Citrus aurantium L. var. amara Engl. (CAVA) is a popular folk medicine and dietary supplement used for relieving dyspepsia, which is recorded in the Chinese Materia Medica. Our previous study showed that blossom of CAVA had anti-obesity potential, while its role in browning of WAT was still unclear. AIM OF THE STUDY This study aimed to characterize the constituents in flavonoids from blossom of CAVA (CAVAF) and to clarify the anti-obesity capacities especially the effects on browning of WAT. MATERIALS AND METHODS Gradient ethanol eluents from blossom of CAVA were obtained by AB-8 macroporous resin. 3T3-L1 cells and pancreatic lipase inhibition assay were employed to investigate the potential anti-obesity effects in vitro. HPLC and UPLC/MS assays were performed to characterize the chemical profiles of different eluents. Network pharmacology and molecular docking assays were used to reveal potential anti-obesity targets. Furthermore, high-fat diet (HFD)-induced mice were constructed to explore the anti-obesity actions and mechanisms in vivo. RESULTS 30% ethanol eluents with high flavonoid content and great inhibition on proliferation of 3T3-L1 preadipocytes and pancreatic lipase activity were regarded as CAVAF. 19 compounds were identified in CAVAF. Network pharmacology analysis demonstrated that AMPK and PPARα were potential targets for CAVAF in alleviating obesity. Animal studies demonstrated that CAVAF intervention significantly decreased the body weight, WAT weight, serum TG, TC and LDL-C levels in HFD-fed obese mice. HFD-induced insulin resistance and morphological changes in WAT and brown adipose tissue were also markedly attenuated by CAVAF treatment. CAVAF supplementation potently inhibited iWAT inflammation by regulating IL-6, IL-1β, TNF-α and IL-10 mRNA expression in iWAT of mice. Furthermore, the gene expression levels of thermogenic markers including Cyto C, ATP synthesis, Cidea, Cox8b and especially UCP1 in iWAT of mice were significantly up-regulated by CAVAF administration. CAVAF intervention also markedly increased the expression levels of PRDM16, PGC-1α, SIRT1, AMPK-α1, PPARα and PPARγ mRNA in iWAT of mice. CONCLUSION CAVAF treatment significantly promoted browning of WAT in HFD-fed mice. These results suggested that flavonoid extracts from blossom of CAVA were probably promising candidates for the treatment of obesity.
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Affiliation(s)
- Song-Xia Lin
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, PR China; Guangdong Provincial Key Laboratory of Chinese Medicine Pharmaceutics, Southern Medical University, Guangzhou 510515, PR China; Guangdong Provincial Engineering Laboratory of Chinese Medicine Preparation Technology, Guangzhou 510515, PR China
| | - Chun Yang
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, PR China; Guangdong Provincial Key Laboratory of Chinese Medicine Pharmaceutics, Southern Medical University, Guangzhou 510515, PR China; Guangdong Provincial Engineering Laboratory of Chinese Medicine Preparation Technology, Guangzhou 510515, PR China
| | - Ru-Shan Jiang
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, PR China; Guangdong Provincial Key Laboratory of Chinese Medicine Pharmaceutics, Southern Medical University, Guangzhou 510515, PR China; Guangdong Provincial Engineering Laboratory of Chinese Medicine Preparation Technology, Guangzhou 510515, PR China
| | - Chao Wu
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, PR China; Guangdong Provincial Key Laboratory of Chinese Medicine Pharmaceutics, Southern Medical University, Guangzhou 510515, PR China; Guangdong Provincial Engineering Laboratory of Chinese Medicine Preparation Technology, Guangzhou 510515, PR China
| | - Deng-Qin Lang
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, PR China; Guangdong Provincial Key Laboratory of Chinese Medicine Pharmaceutics, Southern Medical University, Guangzhou 510515, PR China; Guangdong Provincial Engineering Laboratory of Chinese Medicine Preparation Technology, Guangzhou 510515, PR China
| | - Ya-Li Wang
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, PR China; Guangdong Provincial Key Laboratory of Chinese Medicine Pharmaceutics, Southern Medical University, Guangzhou 510515, PR China; Guangdong Provincial Engineering Laboratory of Chinese Medicine Preparation Technology, Guangzhou 510515, PR China
| | - Xiao-Yi Li
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, PR China; Guangdong Provincial Key Laboratory of Chinese Medicine Pharmaceutics, Southern Medical University, Guangzhou 510515, PR China; Guangdong Provincial Engineering Laboratory of Chinese Medicine Preparation Technology, Guangzhou 510515, PR China
| | - Cui-Ping Jiang
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, PR China; Guangdong Provincial Key Laboratory of Chinese Medicine Pharmaceutics, Southern Medical University, Guangzhou 510515, PR China; Guangdong Provincial Engineering Laboratory of Chinese Medicine Preparation Technology, Guangzhou 510515, PR China.
| | - Qiang Liu
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, PR China; Guangdong Provincial Key Laboratory of Chinese Medicine Pharmaceutics, Southern Medical University, Guangzhou 510515, PR China; Guangdong Provincial Engineering Laboratory of Chinese Medicine Preparation Technology, Guangzhou 510515, PR China
| | - Chun-Yan Shen
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, PR China; Guangdong Provincial Key Laboratory of Chinese Medicine Pharmaceutics, Southern Medical University, Guangzhou 510515, PR China; Guangdong Provincial Engineering Laboratory of Chinese Medicine Preparation Technology, Guangzhou 510515, PR China.
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24
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Wang Y, Chen G, Xu M, Cui Y, He W, Zeng H, Zeng T, Cheng R, Li X. Caspase-1 Deficiency Modulates Adipogenesis through Atg7-Mediated Autophagy: An Inflammatory-Independent Mechanism. Biomolecules 2024; 14:501. [PMID: 38672517 PMCID: PMC11048440 DOI: 10.3390/biom14040501] [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: 04/02/2024] [Revised: 04/16/2024] [Accepted: 04/19/2024] [Indexed: 04/28/2024] Open
Abstract
Obesity stands as a significant risk factor for type 2 diabetes, hyperlipidemia, and cardiovascular diseases, intertwining increased inflammation and decreased adipogenesis with metabolic disorders. Studies have highlighted the correlation between Caspase-1 and inflammation in obesity, elucidating its essential role in the biological functions of adipose tissue. However, the impact of Caspase-1 on adipogenesis and the underlying mechanisms remain largely elusive. In our study, we observed a positive correlation between Caspase-1 expression and obesity and its association with adipogenesis. In vivo experiments revealed that, under normal diet conditions, Caspase-1 deficiency improved glucose homeostasis, stimulated subcutaneous adipose tissue expansion, and enhanced adipogenesis. Furthermore, our findings indicate that Caspase-1 deficiency promotes the expression of autophagy-related proteins and inhibits autophagy with 3-MA or CQ blocked Caspase-1 deficiency-induced adipogenesis in vitro. Notably, Caspase-1 deficiency promotes adipogenesis via Atg7-mediated autophagy activation. In addition, Caspase-1 deficiency resisted against high-fat diet-induced obesity and glucose intolerance. Our study proposes the downregulation of Caspase-1 as a promising strategy for mitigating obesity and its associated metabolic disorders.
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Affiliation(s)
| | | | | | | | | | | | | | - Rui Cheng
- Institute of Life Sciences, School of Basic Medicine, Chongqing Medical University, Chongqing 400016, China
| | - Xi Li
- Institute of Life Sciences, School of Basic Medicine, Chongqing Medical University, Chongqing 400016, China
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25
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Menaker Y, van den Munckhof I, Scarpa A, Placek K, Brandes-Leibovitz R, Glantzspiegel Y, Joosten LAB, Rutten JHW, Netea MG, Gat-Viks I, Riksen NP. Stratification of Atherosclerosis based on Plasma Metabolic States. J Clin Endocrinol Metab 2024; 109:1250-1262. [PMID: 38044551 DOI: 10.1210/clinem/dgad672] [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: 06/29/2023] [Indexed: 12/05/2023]
Abstract
CONTEXT Atherosclerosis is a dominant cause of cardiovascular disease (CVD), including myocardial infarction and stroke. OBJECTIVE To investigate metabolic states that are associated with the development of atherosclerosis. METHODS Cross-sectional cohort study at a university hospital in the Netherlands. A total of 302 adult subjects with a body mass index (BMI) ≥ 27 kg/m2 were included. We integrated plasma metabolomics with clinical metadata to quantify the "atherogenic state" of each individual, providing a continuous spectrum of atherogenic states that ranges between nonatherogenic states to highly atherogenic states. RESULTS Analysis of groups of individuals with different clinical conditions-such as metabolically healthy individuals with obesity, and individuals with metabolic syndrome-confirmed the generalizability of this spectrum; revealed a wide variation of atherogenic states within each condition; and allowed identification of metabolites that are associated with the atherogenic state regardless of the particular condition, such as gamma-glutamyl-glutamic acid and homovanillic acid sulfate. The analysis further highlighted metabolic pathways such as catabolism of phenylalanine and tyrosine and biosynthesis of estrogens and phenylpropanoids. Using validation cohorts, we confirmed variation in atherogenic states in healthy subjects (before atherosclerosis plaques become visible), and showed that metabolites associated with the atherogenic state were also associated with future CVD. CONCLUSION Our results provide a global view of atherosclerosis risk states using plasma metabolomics.
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Affiliation(s)
- Yuval Menaker
- The Shmunis School of Biomedicine and Cancer Research, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Inge van den Munckhof
- Department of Internal Medicine, Radboud University Medical Center, 6525 GA Nijmegen, The Netherlands
| | - Alice Scarpa
- Department of Immunology and Metabolism, Life and Medical Sciences Institute, University of Bonn, 53115 Bonn, Germany
| | - Katarzyna Placek
- Department of Immunology and Metabolism, Life and Medical Sciences Institute, University of Bonn, 53115 Bonn, Germany
| | - Rachel Brandes-Leibovitz
- The Shmunis School of Biomedicine and Cancer Research, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Yossef Glantzspiegel
- The Shmunis School of Biomedicine and Cancer Research, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Leo A B Joosten
- Department of Internal Medicine, Radboud University Medical Center, 6525 GA Nijmegen, The Netherlands
- Department of Medical Genetics, Iuliu Hatieganu University of Medicine and Pharmacy, 400000 Cluj-Napoca, Romania
| | - Joost H W Rutten
- Department of Internal Medicine, Radboud University Medical Center, 6525 GA Nijmegen, The Netherlands
| | - Mihai G Netea
- Department of Internal Medicine, Radboud University Medical Center, 6525 GA Nijmegen, The Netherlands
- Department of Immunology and Metabolism, Life and Medical Sciences Institute, University of Bonn, 53115 Bonn, Germany
| | - Irit Gat-Viks
- The Shmunis School of Biomedicine and Cancer Research, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Niels P Riksen
- Department of Internal Medicine, Radboud University Medical Center, 6525 GA Nijmegen, The Netherlands
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26
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Bafor EE, Erwin-Cohen RA, Martin T, Baker C, Kimmel AE, Duverger O, Fenimore JM, Ramba M, Spindel T, Hess MM, Sanford M, Lazarevic V, Benayoun BA, Young HA, Valencia JC. Aberrant CD8 +T cells drive reproductive dysfunction in female mice with elevated IFN-γ levels. Front Immunol 2024; 15:1368572. [PMID: 38698852 PMCID: PMC11064017 DOI: 10.3389/fimmu.2024.1368572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Accepted: 03/22/2024] [Indexed: 05/05/2024] Open
Abstract
Introduction Interferon-gamma (IFN-γ) is pivotal in orchestrating immune responses during healthy pregnancy. However, its dysregulation, often due to autoimmunity, infections, or chronic inflammatory conditions, is implicated in adverse reproductive outcomes such as pregnancy failure or infertility. Additionally, the underlying immunological mechanisms remain elusive. Methods Here, we explore the impact of systemic IFN-γ elevation on cytotoxic T cell responses in female reproduction utilizing a systemic lupus-prone mouse model with impaired IFN-γ degradation. Results Our findings reveal that heightened IFN-γ levels triggered the infiltration of CD8+T cells in the pituitary gland and female reproductive tract (FRT), resulting in prolactin deficiency and subsequent infertility. Furthermore, we demonstrate that chronic IFN-γ elevation increases effector memory CD8+T cells in the murine ovary and uterus. Discussion These insights broaden our understanding of the role of elevated IFN-γ in female reproductive dysfunction and suggest CD8+T cells as potential immunotherapeutic targets in female reproductive disorders associated with chronic systemic IFN-γ elevation.
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Affiliation(s)
- Enitome E. Bafor
- Cancer Innovation Laboratory, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick, MD, United States
| | - Rebecca A. Erwin-Cohen
- Cancer Innovation Laboratory, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick, MD, United States
| | - Toni Martin
- Cancer Innovation Laboratory, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick, MD, United States
| | - Clayton Baker
- Leonard Davis School of Gerontology, University of Southern California, Los Angeles, CA, United States
- Molecular and Computational Biology Department, University of Southern California, Dornsife College of Letters, Arts and Sciences, Los Angeles, CA, United States
| | - Adrienne E. Kimmel
- Cancer Innovation Laboratory, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick, MD, United States
| | - Olivier Duverger
- Craniofacial Anomalies and Regeneration Section, National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, MD, United States
| | - John M. Fenimore
- Cancer Innovation Laboratory, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick, MD, United States
| | - Meredith Ramba
- Cancer Innovation Laboratory, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick, MD, United States
| | - Thea Spindel
- Cancer Innovation Laboratory, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick, MD, United States
| | - Megan M. Hess
- Cancer Innovation Laboratory, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick, MD, United States
| | - Michael Sanford
- Cancer Innovation Laboratory, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick, MD, United States
| | - Vanja Lazarevic
- Experimental Immunology Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD, United States
| | - Bérénice A. Benayoun
- Leonard Davis School of Gerontology, University of Southern California, Los Angeles, CA, United States
- Molecular and Computational Biology Department, University of Southern California, Dornsife College of Letters, Arts and Sciences, Los Angeles, CA, United States
| | - Howard A. Young
- Cancer Innovation Laboratory, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick, MD, United States
| | - Julio C. Valencia
- Cancer Innovation Laboratory, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick, MD, United States
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27
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Zhang Q, Lu C, Lu F, Liao Y, Cai J, Gao J. Challenges and opportunities in obesity: the role of adipocytes during tissue fibrosis. Front Endocrinol (Lausanne) 2024; 15:1365156. [PMID: 38686209 PMCID: PMC11056552 DOI: 10.3389/fendo.2024.1365156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Accepted: 04/01/2024] [Indexed: 05/02/2024] Open
Abstract
Obesity is a chronic disease that affects the energy balance of the whole body. In addition to increasing fat mass, tissue fibrosis occurred in white adipose tissue in obese condition. Fibrosis is the over-activation of fibroblasts leading to excessive accumulation of extracellular matrix, which could be caused by various factors, including the status of adipocytes. The morphology of adipocytes responds rapidly and dynamically to nutrient fluctuations. Adaptive hypertrophy of normal adipocytes protects peripheral organs from damage from lipotoxicity. However, the biological behavior of hypertrophic adipocytes in chronic obesity is abnormally altered. Adipocytes lead to fibrotic remodeling of the extracellular matrix by inducing unresolved chronic inflammation, persistent hypoxia, and increasing myofibroblast numbers. Moreover, adipocyte-induced fibrosis not only restricts the flexible expansion and contraction of adipose tissue but also initiates the development of various diseases through cellular autonomic and paracrine effects. Regarding anti-fibrotic therapy, dysregulated intracellular signaling and epigenetic changes represent potential candidate targets. Thus, modulation of adipocytes may provide potential therapeutic avenues for reversing pathological fibrosis in adipose tissue and achieving the anti-obesity purpose.
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Affiliation(s)
- Qian Zhang
- Department of Plastic and Cosmetic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Chongxuan Lu
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, Guangdong, China
| | - Feng Lu
- Department of Plastic and Cosmetic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Yunjun Liao
- Department of Plastic and Cosmetic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Junrong Cai
- Department of Plastic and Cosmetic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Jianhua Gao
- Department of Plastic and Cosmetic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
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28
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Chen H, Liu Y, Liu D, Liang Y, Zhu Z, Dong K, Li H, Bao Y, Wu J, Hou X, Jia W. Sex- and age-specific associations between abdominal fat and non-alcoholic fatty liver disease: a prospective cohort study. J Mol Cell Biol 2024; 15:mjad069. [PMID: 38037475 PMCID: PMC11161703 DOI: 10.1093/jmcb/mjad069] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 05/26/2023] [Accepted: 11/29/2023] [Indexed: 12/02/2023] Open
Abstract
Obesity is closely related to non-alcoholic fatty liver disease (NAFLD). Although sex differences in body fat distribution have been well demonstrated, little is known about the sex-specific associations between adipose tissue and the development of NAFLD. Using community-based cohort data, we evaluated the associations between magnetic resonance imaging quantified areas of abdominal adipose tissue, including visceral adipose tissue (VAT) and subcutaneous adipose tissue (SAT), and incident NAFLD in 2830 participants (1205 males and 1625 females) aged 55-70 years. During a 4.6-year median follow-up, the cumulative incidence rates of NAFLD increased with areas of VAT and SAT both in males and in females. Further analyses showed that the above-mentioned positive associations were stronger in males than in females, especially in participants under 60 years old. In contrast, these sex differences disappeared in those over 60 years old. Furthermore, the risk of developing NAFLD increased non-linearly with increasing fat area in a sex-specific pattern. Additionally, sex-specific potential mediators, such as insulin resistance, lipid metabolism, inflammation, and adipokines, may exist in the associations between adipose tissue and NAFLD. This study showed that the associations between abdominal fat and the risk of NAFLD were stratified by sex and age, highlighting the potential need for sex- and age-specific management of NAFLD.
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Affiliation(s)
- Hongli Chen
- Department of Endocrinology and Metabolism, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai Diabetes Institute, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Key Clinical Center for Metabolic Disease, Shanghai 200233, China
| | - Yuexing Liu
- Department of Endocrinology and Metabolism, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai Diabetes Institute, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Key Clinical Center for Metabolic Disease, Shanghai 200233, China
| | - Dan Liu
- Department of Endocrinology and Metabolism, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai Diabetes Institute, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Key Clinical Center for Metabolic Disease, Shanghai 200233, China
| | - Yebei Liang
- Department of Endocrinology and Metabolism, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai Diabetes Institute, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Key Clinical Center for Metabolic Disease, Shanghai 200233, China
| | - Zhijun Zhu
- General Practitioner Teams in Community Health Service Center of Nicheng, Pudong New Area District, Shanghai 201306, China
| | - Keqing Dong
- General Practitioner Teams in Community Health Service Center of Nicheng, Pudong New Area District, Shanghai 201306, China
| | - Huating Li
- Department of Endocrinology and Metabolism, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai Diabetes Institute, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Key Clinical Center for Metabolic Disease, Shanghai 200233, China
| | - Yuqian Bao
- Department of Endocrinology and Metabolism, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai Diabetes Institute, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Key Clinical Center for Metabolic Disease, Shanghai 200233, China
| | - Jiarui Wu
- CAS Key Laboratory of Systems Biology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai 200031, China
| | - Xuhong Hou
- Department of Endocrinology and Metabolism, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai Diabetes Institute, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Key Clinical Center for Metabolic Disease, Shanghai 200233, China
| | - Weiping Jia
- Department of Endocrinology and Metabolism, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai Diabetes Institute, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Key Clinical Center for Metabolic Disease, Shanghai 200233, China
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29
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Li Q, Byun J, Choi J, Park J, Lee J, Oh YK. Nanomodulator-Mediated Restructuring of Adipose Tissue Immune Microenvironments for Antiobesity Treatment. ACS NANO 2024; 18:9311-9330. [PMID: 38498418 DOI: 10.1021/acsnano.3c06001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/20/2024]
Abstract
In obesity, the interactions between proinflammatory macrophages and adipocytes in white adipose tissues are known to play a crucial role in disease progression by providing inflammatory microenvironments. Here, we report that the functional nanoparticle-mediated modulation of crosstalk between adipocytes and macrophages can remodel adipocyte immune microenvironments. As a functional nanomodulator, we designed antivascular cell adhesion molecule (VCAM)-1 antibody-conjugated and amlexanox-loaded polydopamine nanoparticles (VAPN). Amlexanox was used as a model drug to increase energy expenditure. Compared to nanoparticles lacking antibody modification or amlexanox, VAPN showed significantly greater binding to VCAM-1-expressing adipocytes and lowered the interaction of adipocytes with macrophages. In high fat diet-fed mice, repeated subcutaneous administration of VAPN increased the populations of beige adipocytes and ameliorated inflammation in white adipose tissues. Moreover, the localized application of VAPN in vivo exerted a systemic metabolic effect and reduced metabolic disorders, including insulin tolerance and liver steatosis. These findings suggested that VAPN had potential to modulate the immune microenvironments of adipose tissues for the immunologic treatment of obesity. Although we used amlexanox as a model drug and anti-VCAM-1 antibody in VAPN, the concept of immune nanomodulators can be widely applied to the immunological treatment of obesity.
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Affiliation(s)
- Qiaoyun Li
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Junho Byun
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Jaehyun Choi
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Jinwon Park
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Jaiwoo Lee
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Yu-Kyoung Oh
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul 08826, Republic of Korea
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30
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Zhao JY, Zhou LJ, Ma KL, Hao R, Li M. MHO or MUO? White adipose tissue remodeling. Obes Rev 2024; 25:e13691. [PMID: 38186200 DOI: 10.1111/obr.13691] [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: 05/05/2023] [Revised: 11/14/2023] [Accepted: 11/19/2023] [Indexed: 01/09/2024]
Abstract
In this review, we delve into the intricate relationship between white adipose tissue (WAT) remodeling and metabolic aspects in obesity, with a specific focus on individuals with metabolically healthy obesity (MHO) and metabolically unhealthy obesity (MUO). WAT is a highly heterogeneous, plastic, and dynamically secreting endocrine and immune organ. WAT remodeling plays a crucial role in metabolic health, involving expansion mode, microenvironment, phenotype, and distribution. In individuals with MHO, WAT remodeling is beneficial, reducing ectopic fat deposition and insulin resistance (IR) through mechanisms like increased adipocyte hyperplasia, anti-inflammatory microenvironment, appropriate extracellular matrix (ECM) remodeling, appropriate vascularization, enhanced WAT browning, and subcutaneous adipose tissue (SWAT) deposition. Conversely, for those with MUO, WAT remodeling leads to ectopic fat deposition and IR, causing metabolic dysregulation. This process involves adipocyte hypertrophy, disrupted vascularization, heightened pro-inflammatory microenvironment, enhanced brown adipose tissue (BAT) whitening, and accumulation of visceral adipose tissue (VWAT) deposition. The review underscores the pivotal importance of intervening in WAT remodeling to hinder the transition from MHO to MUO. This insight is valuable for tailoring personalized and effective management strategies for patients with obesity in clinical practice.
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Affiliation(s)
- Jing Yi Zhao
- Research Laboratory of Molecular Biology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Li Juan Zhou
- Research Laboratory of Molecular Biology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Kai Le Ma
- Research Laboratory of Molecular Biology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Rui Hao
- Research Laboratory of Molecular Biology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Min Li
- Research Laboratory of Molecular Biology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
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31
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Kim HM, Kwon MH, Lee ES, Ha KB, Chung CH. DA-6034 ameliorates hepatic steatosis and inflammation in high fat diet-induced obese mice. JOURNAL OF YEUNGNAM MEDICAL SCIENCE 2024; 41:103-112. [PMID: 38486464 DOI: 10.12701/jyms.2023.01389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Accepted: 02/09/2024] [Indexed: 05/08/2024]
Abstract
BACKGROUND Nonalcoholic fatty liver disease (NAFLD) is characterized by an increase in hepatic triglyceride content and increased inflammatory macrophage infiltration through the C-C motif chemokine receptor (CCR) 5 pathway in the liver. DA-6034 (7-carboxymethyloxy-3',4',5-trimethoxy flavone), is a synthetic derivative of eupatilin that exhibits anti-inflammatory activity in inflammatory bowel disease. However, the effect of DA-6034 on the inflammatory response in NAFLD is not well elucidated. Therefore, we aimed to determine the effect of DA-6034 on hepatic steatosis and inflammation. METHODS Forty male C57BL/6J mice were divided into the following four groups: (1) regular diet (RD), (2) RD with DA-6034, (3) high fat diet (HFD), and (4) HFD with DA-6034. All mice were sacrificed 12 weeks after the start of the experiment. The effects of DA-6034 on macrophages were assessed using RAW264.7 cells. RESULTS DA-6034 not only reduced hepatic triglyceride levels and lipid accumulation but also macrophage infiltration and proinflammatory cytokines in HFD-fed mice. According to fluorescence-activated cell sorter analysis, DA-6034 reduced the CD8+ T cell fraction in the liver of HFD-fed mice. DA-6034 also reduced CCR5 expression and the migration of liver macrophages in HFD-fed mice and inhibited CCR2 ligand and CCR4 ligand, which stimulated the migration of macrophages. CONCLUSION Overall, DA-6034 attenuates hepatic steatosis and inflammation in obesity by regulating CCR5 expression in macrophages.
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Affiliation(s)
| | - Mi-Hye Kwon
- The East Coast Research Institute of Life Science, Gangneung-Wonju National University, Gangneung, Korea
| | - Eun Soo Lee
- Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea
- Research Institute of Metabolism and Inflammation, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - Kyung Bong Ha
- Department of Clinical Research, Vaccine Center for Assisting Safety & Technology, Hwasun, Korea
| | - Choon Hee Chung
- Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea
- Research Institute of Metabolism and Inflammation, Yonsei University Wonju College of Medicine, Wonju, Korea
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Kleiboeker B, He A, Tan M, Lu D, Hu D, Liu X, Goodarzi P, Hsu FF, Razani B, Semenkovich CF, Lodhi IJ. Adipose tissue peroxisomal lipid synthesis orchestrates obesity and insulin resistance through LXR-dependent lipogenesis. Mol Metab 2024; 82:101913. [PMID: 38458567 PMCID: PMC10950804 DOI: 10.1016/j.molmet.2024.101913] [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: 12/17/2023] [Revised: 02/29/2024] [Accepted: 03/04/2024] [Indexed: 03/10/2024] Open
Abstract
OBJECTIVE Adipose tissue mass is maintained by a balance between lipolysis and lipid storage. The contribution of adipose tissue lipogenesis to fat mass, especially in the setting of high-fat feeding, is considered minor. Here we investigated the effect of adipose-specific inactivation of the peroxisomal lipid synthetic protein PexRAP on fatty acid synthase (FASN)-mediated lipogenesis and its impact on adiposity and metabolic homeostasis. METHODS To explore the role of PexRAP in adipose tissue, we metabolically phenotyped mice with adipose-specific knockout of PexRAP. Bulk RNA sequencing was used to determine transcriptomic responses to PexRAP deletion and 14C-malonyl CoA allowed us to measure de novo lipogenic activity in adipose tissue of these mice. In vitro cell culture models were used to elucidate the mechanism of cellular responses to PexRAP deletion. RESULTS Adipose-specific PexRAP deletion promoted diet-induced obesity and insulin resistance through activation of de novo lipogenesis. Mechanistically, PexRAP inactivation inhibited the flux of carbons to ethanolamine plasmalogens. This increased the nuclear PC/PE ratio and promoted cholesterol mislocalization, resulting in activation of liver X receptor (LXR), a nuclear receptor known to be activated by increased intracellular cholesterol. LXR activation led to increased expression of the phospholipid remodeling enzyme LPCAT3 and induced FASN-mediated lipogenesis, which promoted diet-induced obesity and insulin resistance. CONCLUSIONS These studies reveal an unexpected role for peroxisome-derived lipids in regulating LXR-dependent lipogenesis and suggest that activation of lipogenesis, combined with dietary lipid overload, exacerbates obesity and metabolic dysregulation.
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Affiliation(s)
- Brian Kleiboeker
- Division of Endocrinology, Metabolism & Lipid Research, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Anyuan He
- Division of Endocrinology, Metabolism & Lipid Research, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Min Tan
- Division of Endocrinology, Metabolism & Lipid Research, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Dongliang Lu
- Division of Endocrinology, Metabolism & Lipid Research, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Donghua Hu
- Division of Endocrinology, Metabolism & Lipid Research, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Xuejing Liu
- Division of Endocrinology, Metabolism & Lipid Research, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Parniyan Goodarzi
- Division of Endocrinology, Metabolism & Lipid Research, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Fong-Fu Hsu
- Division of Endocrinology, Metabolism & Lipid Research, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Babak Razani
- Cardiovascular Division, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Clay F Semenkovich
- Division of Endocrinology, Metabolism & Lipid Research, Washington University School of Medicine, St. Louis, MO 63110, USA; Department of Cell Biology and Physiology, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Irfan J Lodhi
- Division of Endocrinology, Metabolism & Lipid Research, Washington University School of Medicine, St. Louis, MO 63110, USA.
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Hernandez-Resendiz I, Burkhardt R. Novel functions of Tribbles-homolog 1 in liver, adipocytes and atherosclerosis. Curr Opin Lipidol 2024; 35:51-57. [PMID: 38236937 DOI: 10.1097/mol.0000000000000917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/08/2024]
Abstract
PURPOSE OF REVIEW Human genetics studies have sparked great interest in the pseudokinase Tribbles homolog 1, as variant at the TRIB1 gene locus were robustly linked to several cardiometabolic traits, including plasma lipids and coronary artery disease. In this review, we summarize recent findings from mouse models that investigated the function of hepatic and adipocyte Trib1 in lipid metabolism and its role in atherosclerosis. RECENT FINDINGS Studies in atherosclerosis prone low-density lipoprotein (LDL)-receptor knockout mice suggested that systemic Trib1 -deficiency promotes atherosclerotic lesion formation through the modulation of plasma lipids and inflammation. Further, investigations in mice with hepatocyte specific deletion of Trib1 identified a novel role in the catabolism of apoB-containing lipoproteins via regulation of the LDL-receptor. Moreover, recent studies on Trib1 in adipocytes uncovered critical functions in adipose tissue biology, including the regulation of plasma lipid and adiponectin levels and the response to β3-adrenergic receptor activation. SUMMARY Functional studies in mice have expanded our understanding of how Trib1 contributes to various aspects of cardiometabolic diseases. They support the notion that Trib1 exerts tissue-specific effects, which can result in opposing effects on cardiometabolic traits. Additional studies are required to fully elucidate the molecular mechanisms underlying the cellular and systemic effects of Trib1 .
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Affiliation(s)
- Ileana Hernandez-Resendiz
- Institute of Clinical Chemistry and Laboratory Medicine, University Hospital Regensburg, University of Regensburg, Germany
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Candia AA, Lean SC, Zhang CXW, McKeating DR, Cochrane A, Gulacsi E, Herrera EA, Krause BJ, Sferruzzi-Perri AN. Obesogenic Diet in Mice Leads to Inflammation and Oxidative Stress in the Mother in Association with Sex-Specific Changes in Fetal Development, Inflammatory Markers and Placental Transcriptome. Antioxidants (Basel) 2024; 13:411. [PMID: 38671859 PMCID: PMC11047652 DOI: 10.3390/antiox13040411] [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: 02/07/2024] [Revised: 03/21/2024] [Accepted: 03/26/2024] [Indexed: 04/28/2024] Open
Abstract
BACKGROUND Obesity during pregnancy is related to adverse maternal and neonatal outcomes. Factors involved in these outcomes may include increased maternal insulin resistance, inflammation, oxidative stress, and nutrient mishandling. The placenta is the primary determinant of fetal outcomes, and its function can be impacted by maternal obesity. The aim of this study on mice was to determine the effect of obesity on maternal lipid handling, inflammatory and redox state, and placental oxidative stress, inflammatory signaling, and gene expression relative to female and male fetal growth. METHODS Female mice were fed control or obesogenic high-fat/high-sugar diet (HFHS) from 9 weeks prior to, and during, pregnancy. On day 18.5 of pregnancy, maternal plasma, and liver, placenta, and fetal serum were collected to examine the immune and redox states. The placental labyrinth zone (Lz) was dissected for RNA-sequencing analysis of gene expression changes. RESULTS the HFHS diet induced, in the dams, hepatic steatosis, oxidative stress (reduced catalase, elevated protein oxidation) and the activation of pro-inflammatory pathways (p38-MAPK), along with imbalanced circulating cytokine concentrations (increased IL-6 and decreased IL-5 and IL-17A). HFHS fetuses were asymmetrically growth-restricted, showing sex-specific changes in circulating cytokines (GM-CSF, TNF-α, IL-6 and IFN-γ). The morphology of the placenta Lz was modified by an HFHS diet, in association with sex-specific alterations in the expression of genes and proteins implicated in oxidative stress, inflammation, and stress signaling. Placental gene expression changes were comparable to that seen in models of intrauterine inflammation and were related to a transcriptional network involving transcription factors, LYL1 and PLAG1. CONCLUSION This study shows that fetal growth restriction with maternal obesity is related to elevated oxidative stress, inflammatory pathways, and sex-specific placental changes. Our data are important, given the marked consequences and the rising rates of obesity worldwide.
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Affiliation(s)
- Alejandro A. Candia
- Centre for Trophoblast Research, Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge CB2 3EG, UK; (A.A.C.); (C.X.W.Z.); (D.R.M.); (A.C.); (E.G.)
- Institute of Health Sciences, University of O’Higgins, Rancagua 2841959, Chile;
- Pathophysiology Program, Institute of Biomedical Sciences (ICBM), Faculty of Medicine, Universidad de Chile, Santiago 7500922, Chile;
- Department for the Woman and Newborn Health Promotion, Faculty of Medicine, Universidad de Chile, Santiago 8380453, Chile
| | - Samantha C. Lean
- Centre for Trophoblast Research, Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge CB2 3EG, UK; (A.A.C.); (C.X.W.Z.); (D.R.M.); (A.C.); (E.G.)
| | - Cindy X. W. Zhang
- Centre for Trophoblast Research, Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge CB2 3EG, UK; (A.A.C.); (C.X.W.Z.); (D.R.M.); (A.C.); (E.G.)
| | - Daniel R. McKeating
- Centre for Trophoblast Research, Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge CB2 3EG, UK; (A.A.C.); (C.X.W.Z.); (D.R.M.); (A.C.); (E.G.)
| | - Anna Cochrane
- Centre for Trophoblast Research, Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge CB2 3EG, UK; (A.A.C.); (C.X.W.Z.); (D.R.M.); (A.C.); (E.G.)
| | - Edina Gulacsi
- Centre for Trophoblast Research, Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge CB2 3EG, UK; (A.A.C.); (C.X.W.Z.); (D.R.M.); (A.C.); (E.G.)
| | - Emilio A. Herrera
- Pathophysiology Program, Institute of Biomedical Sciences (ICBM), Faculty of Medicine, Universidad de Chile, Santiago 7500922, Chile;
| | - Bernardo J. Krause
- Institute of Health Sciences, University of O’Higgins, Rancagua 2841959, Chile;
| | - Amanda N. Sferruzzi-Perri
- Centre for Trophoblast Research, Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge CB2 3EG, UK; (A.A.C.); (C.X.W.Z.); (D.R.M.); (A.C.); (E.G.)
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Hasan S, Ghani N, Zhao X, Good J, Huang A, Wrona HL, Liu J, Liu CJ. Dietary pyruvate targets cytosolic phospholipase A2 to mitigate inflammation and obesity in mice. Protein Cell 2024:pwae014. [PMID: 38512816 DOI: 10.1093/procel/pwae014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Indexed: 03/23/2024] Open
Abstract
Obesity has a multifactorial etiology and is known to be a state of chronic low-grade inflammation, known as meta-inflammation. This state is associated with the development of metabolic disorders such as glucose intolerance and nonalcoholic fatty liver disease. Pyruvate is a glycolytic metabolite and a crucial node in various metabolic pathways. However, its role and molecular mechanism in obesity and associated complications are obscure. In this study, we reported that pyruvate substantially inhibited adipogenic differentiation in vitro and its administration significantly prevented HFD-induced weight gain, white adipose tissue inflammation, and metabolic dysregulation. To identify the target proteins of pyruvate, drug affinity responsive target stability was employed with proteomics, cellular thermal shift assay, and isothermal drug response to detect the interactions between pyruvate and its molecular targets. Consequently, we identified cytosolic phospholipase A2 (cPLA2) as a novel molecular target of pyruvate and demonstrated that pyruvate restrained diet-induced obesity, white adipose tissue inflammation, and hepatic steatosis in a cPLA2-dependent manner. Studies with global ablation of cPLA2 in mice showed that the protective effects of pyruvate were largely abrogated, confirming the importance of pyruvate/cPLA2 interaction in pyruvate attenuation of inflammation and obesity. Overall, our study not only establishes pyruvate as an antagonist of cPLA2 signaling and a potential therapeutic option for obesity, but it also sheds light on the mechanism of its action. Pyruvate's prior clinical use indicates that it can be considered a safe and viable alternative for obesity, whether consumed as a dietary supplement or as part of a regular diet.
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Affiliation(s)
- Sadaf Hasan
- Department of Orthopedic Surgery, New York University Grossman School of Medicine, New York, NY 10016, USA
| | - Nabil Ghani
- Department of Medicine, Division of Internal Medicine, Saint Peter's University Hospital, Rutgers University, New Brunswick, NJ 08901, USA
| | - Xiangli Zhao
- Department of Orthopedic Surgery, New York University Grossman School of Medicine, New York, NY 10016, USA
- Department of Orthopedics & Rehabilitation, Yale University School of Medicine, New Haven, CT 06510, USA
| | - Julia Good
- Department of Orthopedic Surgery, New York University Grossman School of Medicine, New York, NY 10016, USA
| | - Amanda Huang
- Department of Orthopedic Surgery, New York University Grossman School of Medicine, New York, NY 10016, USA
- Cornell University, Ithaca, New York, New York, USA
| | - Hailey Lynn Wrona
- Department of Orthopedic Surgery, New York University Grossman School of Medicine, New York, NY 10016, USA
- Department of Biomedical Engineering, University of North Carolina Chapel Hill, Chapel Hill, North Carolina
| | - Jody Liu
- Department of Orthopedic Surgery, New York University Grossman School of Medicine, New York, NY 10016, USA
- New York University, NY 14853, USA
| | - Chuan-Ju Liu
- Department of Orthopedic Surgery, New York University Grossman School of Medicine, New York, NY 10016, USA
- Department of Cell Biology, New York University Grossman School of Medicine, New York, NY 10016, USA
- Department of Orthopedics & Rehabilitation, Yale University School of Medicine, New Haven, CT 06510, USA
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A M, L V, G M, M M, A B, G F, B M, A C, G CM, S C, C P, A U, F G, M M, P DA, G S, A Z, C C, F D. Fitness age outperforms body mass index in differentiating aging patterns and health risk profiles of healthy adults aged 51-80 years. GeroScience 2024:10.1007/s11357-024-01125-z. [PMID: 38499955 DOI: 10.1007/s11357-024-01125-z] [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: 10/02/2023] [Accepted: 03/09/2024] [Indexed: 03/20/2024] Open
Abstract
Physical fitness has been extensively shown to strongly associate with general health status and major health risks. Here we tested the ability of a novel estimate of fitness age (FitAge) to differentiate aging trajectories.This study aimed at (1) testing the ability of FitAge to differentiate aging patterns among decelerated, normal, and accelerated agers in selected health domains, (2) estimating the risk for developing major health issues depending on the aging trajectory, and (3) comparing FitAge to body mass index (BMI) categorization in differentiating healthy from unhealthy aging patterns.A total of 176 volunteers participated in this cross-sectional study. Participants underwent clinical screening and a comprehensive assessment of body composition, nutritional and health-related status, cognitive functioning, and haematochemical analyses with routine tests, oxidative stress, and inflammation markers. Scores for major health risks were also computed.FitAge outperformed BMI in estimating major health risk scores and was able to differentiate decelerated from normal and accelerated agers for health risk profile and several physiological domains. Body composition, immune system activation, and inflammation markers emerged as those variables flagging the largest differences between decelerated and accelerated aging patterns.The novel estimate of biological aging can accurately differentiate both in women and men decelerated from accelerated agers in almost all the domains scrutinized. Overall, decelerated aging is linked to positively oriented features which associate with reduced risk of developing major health issues.The present findings have potential relevance and practical implications to identify individuals at higher risk of accelerated aging according to their FitAge estimated via simple and cost-effective motor tests.
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Affiliation(s)
- Manca A
- Department of Biomedical Sciences, University of Sassari, Viale S. Pietro 43/B, 07100, Sassari, Italy
| | - Ventura L
- Department of Biomedical Sciences, University of Sassari, Viale S. Pietro 43/B, 07100, Sassari, Italy
| | - Martinez G
- Department of Biomedical Sciences, University of Sassari, Viale S. Pietro 43/B, 07100, Sassari, Italy
| | - Morrone M
- Department of Biomedical Sciences, University of Sassari, Viale S. Pietro 43/B, 07100, Sassari, Italy
| | - Boi A
- Department of Biomedical Sciences, University of Sassari, Viale S. Pietro 43/B, 07100, Sassari, Italy
| | - Fiorito G
- Department of Biomedical Sciences, University of Sassari, Viale S. Pietro 43/B, 07100, Sassari, Italy
- IRCCS Ospedale Pediatrico Giannina Gaslini, Genoa, Italy
| | - Mercante B
- Department of Biomedical Sciences, University of Sassari, Viale S. Pietro 43/B, 07100, Sassari, Italy
| | - Cano A
- Department of Biomedical Sciences, University of Sassari, Viale S. Pietro 43/B, 07100, Sassari, Italy
| | - Catte M G
- Department of Biomedical Sciences, University of Sassari, Viale S. Pietro 43/B, 07100, Sassari, Italy
| | - Cruciani S
- Department of Biomedical Sciences, University of Sassari, Viale S. Pietro 43/B, 07100, Sassari, Italy
| | - Pozzati C
- Department of History, Human Sciences and Education, University of Sassari, Sassari, Italy
| | - Uccula A
- Department of History, Human Sciences and Education, University of Sassari, Sassari, Italy
| | - Ginatempo F
- Department of Biomedical Sciences, University of Sassari, Viale S. Pietro 43/B, 07100, Sassari, Italy
| | - Maioli M
- Department of Biomedical Sciences, University of Sassari, Viale S. Pietro 43/B, 07100, Sassari, Italy
| | - Delitala A P
- Department of Medicine, Surgery and Pharmacy, University of Sassari, Sassari, Italy
| | - Solinas G
- Department of Biomedical Sciences, University of Sassari, Viale S. Pietro 43/B, 07100, Sassari, Italy
| | - Zinellu A
- Department of Biomedical Sciences, University of Sassari, Viale S. Pietro 43/B, 07100, Sassari, Italy
| | - Carru C
- Department of Biomedical Sciences, University of Sassari, Viale S. Pietro 43/B, 07100, Sassari, Italy
| | - Deriu F
- Department of Biomedical Sciences, University of Sassari, Viale S. Pietro 43/B, 07100, Sassari, Italy.
- Unit of Endocrinology, Nutritional and Metabolic Disorders, AOU Sassari, Sassari, Italy.
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Shangguan Q, Liu Q, Yang R, Zhang S, Sheng G, Kuang M, Zou Y. Predictive value of insulin resistance surrogates for the development of diabetes in individuals with baseline normoglycemia: findings from two independent cohort studies in China and Japan. Diabetol Metab Syndr 2024; 16:68. [PMID: 38491516 PMCID: PMC10943817 DOI: 10.1186/s13098-024-01307-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Accepted: 03/05/2024] [Indexed: 03/18/2024] Open
Abstract
BACKGROUND Insulin resistance (IR) plays a crucial role in the occurrence and progression of diabetes. This study aimed to evaluate and compare the predictive value of four IR surrogates, including the triglycerides glucose (TyG) index, TyG and body mass index (TyG-BMI), triglycerides/high-density lipoprotein cholesterol (TG/HDL-C) ratio, and the metabolic score for IR (MetS-IR) for diabetes in two large cohorts. METHODS A total of 116,661 adult participants from the China Rich Healthcare Group and 15,464 adult participants from the Japanese NAGALA cohort were included in the study. Multivariable Cox proportional hazards models were used to assess the standardized hazard ratio (HR) of the TyG index, TyG-BMI, TG/HDL-C ratio, and MetS-IR directly associated with diabetes. Receiver operating characteristic (ROC) curve and time-dependent ROC curve analysis were performed to evaluate and compare the predictive value of the four IR surrogates for diabetes. RESULTS In the two independent cohorts, the average follow-up time was 3.1 years in the China cohort, with 2681(2.30%) incident cases of diabetes recorded, and 6.13 years in the Japan cohort, with 373 incident cases (2.41%) of diabetes recorded. After adjusting for potential confounding factors, we found that among the four IR surrogates, TyG-BMI and MetS-IR showed stronger associations with diabetes. The stronger associations persisted even after further stratification by age, sex, hypertension, and obese subgroups. In terms of diabetes prediction, based on ROC analysis, TyG-BMI demonstrated the highest predictive accuracy for diabetes in the Chinese population, while both TyG-BMI and MetS-IR showed the highest predictive accuracy in the Japanese population. The results of further subgroup ROC analysis confirmed the robustness of these findings. Furthermore, the time-dependent ROC results indicated that among the four IR surrogates, MetS-IR exhibited the highest accuracy in predicting future diabetes at various time intervals in the Japanese population. CONCLUSION Our findings suggest that evaluating TyG-BMI and MetS-IR as IR surrogates may be the most useful for predicting diabetes events and assessing the risk of developing diabetes in East Asian populations.
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Affiliation(s)
- Qing Shangguan
- Jiangxi Provincial Geriatric Hospital, Jiangxi Provincial People's Hospital, The First Affiliated Hospital of Nanchang Medical College, Nanchang, 330006, Jiangxi, China
| | - Qiuling Liu
- Cardiovascular Research Institute of Jiangxi Province, Jiangxi Provincial People's Hospital, The First Affiliated Hospital of Nanchang Medical College, Nanchang, 330006, Jiangxi, China
| | - Ruijuan Yang
- Jiangxi Medical College, Nanchang University, Nanchang, 330006, Jiangxi, China
- Department of Endocrinology, Jiangxi Provincial People's Hospital, The First Affiliated Hospital of Nanchang Medical College, Nanchang, 330006, Jiangxi, China
| | - Shuhua Zhang
- Cardiovascular Research Institute of Jiangxi Province, Jiangxi Provincial People's Hospital, The First Affiliated Hospital of Nanchang Medical College, Nanchang, 330006, Jiangxi, China
| | - Guotai Sheng
- Jiangxi Provincial Geriatric Hospital, Jiangxi Provincial People's Hospital, The First Affiliated Hospital of Nanchang Medical College, Nanchang, 330006, Jiangxi, China
| | - Maobin Kuang
- Jiangxi Provincial Geriatric Hospital, Jiangxi Provincial People's Hospital, The First Affiliated Hospital of Nanchang Medical College, Nanchang, 330006, Jiangxi, China.
- Cardiovascular Research Institute of Jiangxi Province, Jiangxi Provincial People's Hospital, The First Affiliated Hospital of Nanchang Medical College, Nanchang, 330006, Jiangxi, China.
- Jiangxi Medical College, Nanchang University, Nanchang, 330006, Jiangxi, China.
| | - Yang Zou
- Cardiovascular Research Institute of Jiangxi Province, Jiangxi Provincial People's Hospital, The First Affiliated Hospital of Nanchang Medical College, Nanchang, 330006, Jiangxi, China.
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Yoshinaga M, Takeuchi O. Regulation of inflammatory diseases via the control of mRNA decay. Inflamm Regen 2024; 44:14. [PMID: 38491500 PMCID: PMC10941436 DOI: 10.1186/s41232-024-00326-5] [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: 01/05/2024] [Accepted: 03/02/2024] [Indexed: 03/18/2024] Open
Abstract
Inflammation orchestrates a finely balanced process crucial for microorganism elimination and tissue injury protection. A multitude of immune and non-immune cells, alongside various proinflammatory cytokines and chemokines, collectively regulate this response. Central to this regulation is post-transcriptional control, governing gene expression at the mRNA level. RNA-binding proteins such as tristetraprolin, Roquin, and the Regnase family, along with RNA modifications, intricately dictate the mRNA decay of pivotal mediators and regulators in the inflammatory response. Dysregulated activity of these factors has been implicated in numerous human inflammatory diseases, underscoring the significance of post-transcriptional regulation. The increasing focus on targeting these mechanisms presents a promising therapeutic strategy for inflammatory and autoimmune diseases. This review offers an extensive overview of post-transcriptional regulation mechanisms during inflammatory responses, delving into recent advancements, their implications in human diseases, and the strides made in therapeutic exploitation.
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Affiliation(s)
- Masanori Yoshinaga
- Department of Medical Chemistry, Graduate School of Medicine, Kyoto University, Kyoto, 606-8501, Japan.
| | - Osamu Takeuchi
- Department of Medical Chemistry, Graduate School of Medicine, Kyoto University, Kyoto, 606-8501, Japan.
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Flori L, Piragine E, Calderone V, Testai L. Role of hydrogen sulfide in the regulation of lipid metabolism: Implications on cardiovascular health. Life Sci 2024; 341:122491. [PMID: 38336275 DOI: 10.1016/j.lfs.2024.122491] [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: 12/06/2023] [Revised: 01/29/2024] [Accepted: 02/05/2024] [Indexed: 02/12/2024]
Abstract
The World Health Organization (WHO) defines obesity as an urgency for health and a social emergency. Today around 39 % of people is overweight, of these over 13 % is obese. It is well-consolidated that the adipose cells are deputy to lipid storage under caloric excess; however, despite the classical idea that adipose tissue has exclusively a passive function, now it is known to be deeply involved in the regulation of systemic metabolism in physiological as well as under obesogenic conditions, with consequences on cardiovascular health. Beside two traditional types of adipose cells (white and brown), recently the beige one has been highlighted as the consequence of the healthy remodeling of white adipocytes, confirming their metabolic adaptability. In this direction, pharmacological, nutraceutical and nutrient-based approaches are addressed to positively influence inflammation and metabolism, thus contributing to reduce the obese-associated cardiovascular risk. In this scenario, hydrogen sulfide emerges as a new mediator that may regulate crucial targets involved in the regulation of metabolism. The current evidence demonstrates that hydrogen sulfide may induce peroxisome proliferator activated receptor γ (PPARγ), a crucial mediator of adipogenesis, inhibit the phosphorylation of perlipin-1 (plin-1), a protein implicated in the lipolysis, and finally promote browning process, through the release of irisin from skeletal muscle. The results summarized in this review suggest an important role of hydrogen sulfide in the regulation of metabolism and in the prevention/treatment of obese-associated cardiovascular diseases and propose new insight on the putative mechanisms underlying the release of hydrogen sulfide or its biosynthesis, delineating a further exciting field of application.
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Affiliation(s)
- Lorenzo Flori
- Department of Pharmacy, University of Pisa, via Bonanno, 6-56120 Pisa, Italy.
| | - Eugenia Piragine
- Department of Pharmacy, University of Pisa, via Bonanno, 6-56120 Pisa, Italy.
| | - Vincenzo Calderone
- Department of Pharmacy, University of Pisa, via Bonanno, 6-56120 Pisa, Italy.
| | - Lara Testai
- Department of Pharmacy, University of Pisa, via Bonanno, 6-56120 Pisa, Italy.
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Conte C, Cipponeri E, Roden M. Diabetes Mellitus, Energy Metabolism, and COVID-19. Endocr Rev 2024; 45:281-308. [PMID: 37934800 PMCID: PMC10911957 DOI: 10.1210/endrev/bnad032] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 08/30/2023] [Accepted: 11/01/2023] [Indexed: 11/09/2023]
Abstract
Obesity, diabetes mellitus (mostly type 2), and COVID-19 show mutual interactions because they are not only risk factors for both acute and chronic COVID-19 manifestations, but also because COVID-19 alters energy metabolism. Such metabolic alterations can lead to dysglycemia and long-lasting effects. Thus, the COVID-19 pandemic has the potential for a further rise of the diabetes pandemic. This review outlines how preexisting metabolic alterations spanning from excess visceral adipose tissue to hyperglycemia and overt diabetes may exacerbate COVID-19 severity. We also summarize the different effects of SARS-CoV-2 infection on the key organs and tissues orchestrating energy metabolism, including adipose tissue, liver, skeletal muscle, and pancreas. Last, we provide an integrative view of the metabolic derangements that occur during COVID-19. Altogether, this review allows for better understanding of the metabolic derangements occurring when a fire starts from a small flame, and thereby help reducing the impact of the COVID-19 pandemic.
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Affiliation(s)
- Caterina Conte
- Department of Human Sciences and Promotion of the Quality of Life, San Raffaele Roma Open University, Rome 00166, Italy
- Department of Endocrinology, Nutrition and Metabolic Diseases, IRCCS MultiMedica, Milan 20099, Italy
| | - Elisa Cipponeri
- Department of Endocrinology, Nutrition and Metabolic Diseases, IRCCS MultiMedica, Milan 20099, Italy
| | - Michael Roden
- Department of Endocrinology and Diabetology, Medical Faculty and University Hospital Düsseldorf, Heinrich-Heine-University Düsseldorf, Düsseldorf 40225, Germany
- Institute for Clinical Diabetology, German Diabetes Center, Leibniz Center for Diabetes Research at Heinrich-Heine-University Düsseldorf, Düsseldorf 40225, Germany
- German Center for Diabetes Research, Partner Düsseldorf, Neuherberg 85764, Germany
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Stevenson M, Srivastava A, Nacher M, Hall C, Palaia T, Lee J, Zhao CL, Lau R, Ali MAE, Park CY, Schlamp F, Heffron SP, Fisher EA, Brathwaite C, Ragolia L. The Effect of Diet Composition on the Post-operative Outcomes of Roux-en-Y Gastric Bypass in Mice. Obes Surg 2024; 34:911-927. [PMID: 38191966 DOI: 10.1007/s11695-023-07052-w] [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: 10/31/2023] [Revised: 12/30/2023] [Accepted: 12/30/2023] [Indexed: 01/10/2024]
Abstract
PURPOSE Roux-en-Y gastric bypass (RYGB) leads to the improvement of many obesity-associated conditions. The degree to which post-operative macronutrient composition contributes to metabolic improvement after RYGB is understudied. METHODS A mouse model of RYGB was used to examine the effects of diet on the post-operative outcomes of RYGB. Obese mice underwent either Sham or RYGB surgery and were administered either chow or HFD and then monitored for an additional 8 weeks. RESULTS After RYGB, reductions to body weight, fat mass, and lean mass were similar regardless of diet. RYGB and HFD were independently detrimental to bone mineral density and plasma vitamin D levels. Independent of surgery, HFD accelerated hematopoietic stem and progenitor cell proliferation and differentiation and exhibited greater myeloid lineage commitment. Independent of diet, systemic iron deficiency was present after RYGB. In both Sham and RYGB groups, HFD increased energy expenditure. RYGB increased fecal energy loss, and HFD after RYGB increased fecal lipid content. RYGB lowered fasting glucose and liver glycogen levels but HFD had an opposing effect. Indices of insulin sensitivity improved independent of diet. HFD impaired improvements to dyslipidemia, NAFLD, and fibrosis. CONCLUSION Post-operative diet plays a significant role in determining the degree to which RYGB reverses obesity-induced metabolic abnormalities such as hyperglycemia, dyslipidemia, and NAFLD. Diet composition may be targeted in order to assist in the treatment of post-RYGB bone mineral density loss and vitamin D deficiency as well as to reverse myeloid lineage commitment. HFD after RYGB continues to pose a significant multidimensional health risk.
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Affiliation(s)
- Matthew Stevenson
- Department of Biomedical Research, NYU Grossman Long Island School of Medicine, NYU Langone Hospital-Long Island, Mineola, NY, USA
| | - Ankita Srivastava
- Department of Biomedical Research, NYU Grossman Long Island School of Medicine, NYU Langone Hospital-Long Island, Mineola, NY, USA
| | - Maria Nacher
- Department of Medicine, Division of Cardiology, NYU Langone Health Cardiovascular Research Center, New York University Grossman School of Medicine, New York, NY, USA
- The Leon H. Charney Division of Cardiology, Department of Medicine, The Marc and Ruti Bell Program in Vascular Biology and the Cardiovascular Research Center, NYU Grossman School of Medicine, New York, NY, USA
| | - Christopher Hall
- Department of Biomedical Research, NYU Grossman Long Island School of Medicine, NYU Langone Hospital-Long Island, Mineola, NY, USA
| | - Thomas Palaia
- Department of Biomedical Research, NYU Grossman Long Island School of Medicine, NYU Langone Hospital-Long Island, Mineola, NY, USA
| | - Jenny Lee
- Department of Biomedical Research, NYU Grossman Long Island School of Medicine, NYU Langone Hospital-Long Island, Mineola, NY, USA
| | - Chaohui Lisa Zhao
- Department of Pathology, NYU Langone Hospital-Long Island, Mineola, NY, USA
| | - Raymond Lau
- Department of Biomedical Research, NYU Grossman Long Island School of Medicine, NYU Langone Hospital-Long Island, Mineola, NY, USA
- Department of Endocrinology, NYU Langone Hospital-Long Island, Mineola, NY, USA
| | - Mohamed A E Ali
- Department of Pathology, New York University Grossman School of Medicine, New York, NY, USA
| | - Christopher Y Park
- Department of Pathology, New York University Grossman School of Medicine, New York, NY, USA
| | - Florencia Schlamp
- Department of Medicine, Division of Cardiology, NYU Langone Health Cardiovascular Research Center, New York University Grossman School of Medicine, New York, NY, USA
| | - Sean P Heffron
- Department of Medicine, Division of Cardiology, NYU Langone Health Cardiovascular Research Center, New York University Grossman School of Medicine, New York, NY, USA
- The Leon H. Charney Division of Cardiology, Department of Medicine, The Marc and Ruti Bell Program in Vascular Biology and the Cardiovascular Research Center, NYU Grossman School of Medicine, New York, NY, USA
| | - Edward A Fisher
- Department of Medicine, Division of Cardiology, NYU Langone Health Cardiovascular Research Center, New York University Grossman School of Medicine, New York, NY, USA
- The Leon H. Charney Division of Cardiology, Department of Medicine, The Marc and Ruti Bell Program in Vascular Biology and the Cardiovascular Research Center, NYU Grossman School of Medicine, New York, NY, USA
| | - Collin Brathwaite
- Department of Biomedical Research, NYU Grossman Long Island School of Medicine, NYU Langone Hospital-Long Island, Mineola, NY, USA
- Department of Surgery, NYU Langone Hospital-Long Island, Mineola, NY, USA
| | - Louis Ragolia
- Department of Biomedical Research, NYU Grossman Long Island School of Medicine, NYU Langone Hospital-Long Island, Mineola, NY, USA.
- Department of Foundations of Medicine, NYU Grossman Long Island School of Medicine, Mineola, NY, USA.
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Wu Y, Li Y, Sun M, Yu F, Liu H, Xu J, Tang X. FAP deficiency enhances thermogenesis and attenuates metabolic inflammation in diet-induced obesity. Obesity (Silver Spring) 2024; 32:528-539. [PMID: 38100123 DOI: 10.1002/oby.23955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2023] [Revised: 10/21/2023] [Accepted: 10/23/2023] [Indexed: 02/28/2024]
Abstract
OBJECTIVE Fibroblast activation protein α (FAP) is expressed in normal adipose tissue and related to some pleiotropic metabolic regulators. However, the exact role and mechanism of FAP in obesity and related metabolic disorders are not well understood. METHODS FAP knockout mice were fed a normal diet or a high-fat diet (HFD) for 12 weeks. FAP knockout mice or wild-type mice treated with an FAP inhibitor were subjected to cold stress for 5 days. RESULTS FAP deficiency protected mice against HFD-induced obesity and obesity-associated metabolic dysfunction, including glucose intolerance, insulin resistance, hyperglycemia, hyperinsulinemia, and hyperlipidemia. Notably, FAP deficiency largely reversed obesity-induced adipose tissue macrophage accumulation and M1-M2 imbalance in white adipose tissue (WAT). Moreover, energy expenditure was significantly higher in FAP-deficient mice fed an HFD. Both FAP deficiency and inhibition increased cold tolerance through enhancing WAT beiging. CONCLUSIONS This study demonstrated that FAP deficiency protects mice against diet-induced obesity and related metabolic dysfunction. Furthermore, the protective effects are probably mediated via the promotion of WAT beiging and suppression of inflammation.
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Affiliation(s)
- Yunyun Wu
- Department of Medical Microbiology and Immunology, Wannan Medical College, Wuhu, China
| | - Yun Li
- Department of Pharmacy, Wannan Medical College, Wuhu, China
| | - Miao Sun
- Department of Pharmacy, Wannan Medical College, Wuhu, China
| | - Fangliu Yu
- Department of Medical Microbiology and Immunology, Wannan Medical College, Wuhu, China
| | - Hui Liu
- Department of Medical Microbiology and Immunology, Wannan Medical College, Wuhu, China
| | - Jingyun Xu
- Department of Parasitology, Wannan Medical College, Wuhu, China
| | - Xingli Tang
- Department of Medical Microbiology and Immunology, Wannan Medical College, Wuhu, China
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Gonzalez-Gil AM, Ruiz-Santillan MA, Force BK, Gaba R. A Case of Diffuse Thyroid Lipomatosis With Amyloid Deposits Presenting With Thyrotoxicosis. JCEM CASE REPORTS 2024; 2:luae030. [PMID: 38440128 PMCID: PMC10911399 DOI: 10.1210/jcemcr/luae030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Indexed: 03/06/2024]
Abstract
Diffuse thyroid lipomatosis (DTL) is a rare entity of unknown etiology that can be associated with amyloidosis and rarely, thyrotoxicosis. Here, we present a case of DTL with amyloid deposits and concurrent thyrotoxicosis. A 64-year-old South-Asian woman with a several-year history of an enlarging goiter, unintentional weight loss, and work-up 10 months prior suggestive of thyroiditis presented with a viral syndrome in setting of several weeks of progressive fatigue. Her examination was notable for resting sinus tachycardia and massive painless goiter. Initial work-up revealed nephrotic range proteinuria with hypoalbuminemia, which progressed to end-stage-renal disease, elevated inflammatory markers, and elevated free thyroxine (FT4) with a suppressed thyrotropin. Hemodialysis was initiated. Further testing revealed a negative antithyroid antibody panel, an enlarged fatty thyroid per thyroid ultrasound and neck computed tomography, and normal 24-hour uptake on radioactive iodine uptake scan. Both renal and thyroid core biopsies showed amyloid deposits, with the latter confirming benign adipose tissue with entrapped thyroid follicles. Given her rising FT4 levels and persistent tachycardia, methimazole and atenolol were initiated. FT4 levels nearly normalized after uptitration of methimazole and dosing after dialysis. Although the etiopathogenesis and natural history of DTL remain unclear, we discuss the possible mechanisms of thyrotoxicosis in our patient.
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Affiliation(s)
| | - Marco A Ruiz-Santillan
- Division of Endocrinology, Diabetes and Metabolism, Baylor College of Medicine, Houston, TX 77030, USA
| | - Bahar K Force
- Division of Endocrinology, Diabetes and Metabolism, Baylor College of Medicine, Houston, TX 77030, USA
| | - Ruchi Gaba
- Division of Endocrinology, Diabetes and Metabolism, Baylor College of Medicine, Houston, TX 77030, USA
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Zhang X. Relationship between SIRI and android and gynoid fat related to obesity and cardiovascular risk: a cross-sectional study of NHANES 2017-2018. J Int Med Res 2024; 52:3000605241239841. [PMID: 38534094 PMCID: PMC10981244 DOI: 10.1177/03000605241239841] [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: 09/22/2023] [Accepted: 02/28/2024] [Indexed: 03/28/2024] Open
Abstract
OBJECTIVE Inflammation has a crucial role in several metabolic diseases, such as obesity. The author aimed to investigate the relationship between the system inflammation response index (SIRI) and android fat composition and distribution. METHODS Data for individuals aged 8-59 years, SIRI, android percent fat, and android-to-gynoid ratio from the 2017 to 2018 National Health and Nutrition Examination Survey were used. Weighted multiple linear regression and smooth curve fitting were used to test for linear and nonlinear associations. Additional subgroup analyses were performed. Threshold effect analysis was performed using a two-linear regression model. RESULTS Multiple linear regression showed a positive correlation between SIRI and android percent fat (β 0.92, 95% confidence interval [CI] 0.25-1.59) and between SIRI and the android-to-gynoid ratio (β 0.01, 95% CI 0.00-0.03) in 3783 Americans aged 8-59 years. The results showed that the effect of factors, other than smoking status, on the relationship between SIRI and android percent fat and android-to-gynoid ratio was not significant. There was a nonlinear relationship between SIRI and both android percent fat and android-to-gynoid ratio. CONCLUSIONS Elevated SIRI levels were associated with an increased android percent fat and android-to-gynoid ratio. Larger prospective studies are needed to validate the findings.
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Sun J, Zeng N, Hui Y, Li J, Liu W, Zhao X, Zhao P, Chen S, Wu S, Wang Z, Lv H. Association of variability in body size with neuroimaging metrics of brain health: a population-based cohort study. THE LANCET REGIONAL HEALTH. WESTERN PACIFIC 2024; 44:101015. [PMID: 38328337 PMCID: PMC10848022 DOI: 10.1016/j.lanwpc.2024.101015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 01/02/2024] [Accepted: 01/10/2024] [Indexed: 02/09/2024]
Abstract
Background The relationship between the fluctuation in body size and brain health is poorly understood. This study aimed to examine the associations of long-term variability in body mass index (BMI) and waist-to-hip ratio (WHR) with neuroimaging metrics that approximate brain health. Methods This cohort study recruited 1114 participants aged 25-83 years from a multicenter, community-based cohort study in China. We modeled the BMI and WHR trajectories of participants during 2006-2018 and assessed the BMI and WHR variability (direction and speed of change) by calculating the slope. Generalized linear models were applied to investigate the associations of BMI and WHR variability with MRI markers of brain tissue volume, white matter microstructural integrity, white matter hyperintensity (WMH), and cerebral small vessel disease (CSVD). Findings Progressive weight gain during follow-up was associated with lower global fractional anisotropy (beta = -0.18, 95% confidence interval [CI] -0.34 to -0.02), higher mean diffusivity (beta = 0.15, 95% CI 0.01-0.30) and radial diffusivity (beta = 0.17, 95% CI 0.02-0.32). Weight loss was also associated with a lower burden of periventricular WMH (beta = -0.26, 95% CI -0.48 to -0.03) and a lower risk of moderate-to-severe basal ganglia enlarged perivascular spaces (BG-EPVS, odds ratio [OR] = 0.41, 95% CI 0.20-0.83). Among overweight populations, weight loss was linked with smaller volumes of WMH (beta = -0.47, 95% CI -0.79 to -0.15), periventricular WMH (beta = -0.57, 95% CI -0.88 to -0.26), and deep WMH (beta = -0.36, 95% CI -0.69 to -0.03), as well as lower risk of CSVD (OR = 0.22, 95% CI 0.08-0.62), lacune (OR = 0.12, 95% CI 0.01-0.91) and moderate-to-severe BG-EPVS (OR = 0.24, 95% CI 0.09-0.61). In adults with central obesity, WHR loss was positively associated with larger gray matter volume (beta = 0.50, 95% CI 0.11-0.89), hippocampus volume (beta = 0.62, 95% CI 0.15-1.09), and parahippocampal gyrus volume (beta = 0.85, 95% CI 0.34-1.37). The sex-stratification and age-stratification analyses revealed similar findings with the main results, with the pattern of associations significantly presented in the individuals at mid-life and late-life. Interpretation Long-term stability of BMI level is essential for maintaining brain health. Progressive weight gain is associated with impaired white matter microstructural integrity. Weight and WHR losses are associated with improved general brain health. Our results contribute to a better understanding of the integrated associations between variations in obesity measures and brain health. Funding This study was supported by grants No. 62171297 (Han Lv) and 61931013 (Zhenchang Wang) from the National Natural Science Foundation of China, No. 7242267 from the Beijing Natural Science Foundation (Han Lv), and No. [2015] 160 from the Beijing Scholars Program (Zhenchang Wang).
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Affiliation(s)
- Jing Sun
- Department of Radiology, Beijing Friendship Hospital, Capital Medical University, No. 95 Yongan Road, Xicheng District, Beijing 100050, China
| | - Na Zeng
- School of Public Health, Peking University, Beijing 100191, China
| | - Ying Hui
- Department of Radiology, Beijing Friendship Hospital, Capital Medical University, No. 95 Yongan Road, Xicheng District, Beijing 100050, China
| | - Jing Li
- Department of Radiology, Beijing Friendship Hospital, Capital Medical University, No. 95 Yongan Road, Xicheng District, Beijing 100050, China
| | - Wenjuan Liu
- Department of Radiology, Beijing Friendship Hospital, Capital Medical University, No. 95 Yongan Road, Xicheng District, Beijing 100050, China
| | - Xinyu Zhao
- Clinical Epidemiology and Evidence-based Medicine Unit, Capital Medical University, No. 95 Yongan Road, Xicheng District, Beijing 100050, China
| | - Pengfei Zhao
- Department of Radiology, Beijing Friendship Hospital, Capital Medical University, No. 95 Yongan Road, Xicheng District, Beijing 100050, China
| | - Shuohua Chen
- Department of Cardiology, Kailuan General Hospital, Tangshan, Hebei 063000, China
| | - Shouling Wu
- Department of Cardiology, Kailuan General Hospital, Tangshan, Hebei 063000, China
| | - Zhenchang Wang
- Department of Radiology, Beijing Friendship Hospital, Capital Medical University, No. 95 Yongan Road, Xicheng District, Beijing 100050, China
| | - Han Lv
- Department of Radiology, Beijing Friendship Hospital, Capital Medical University, No. 95 Yongan Road, Xicheng District, Beijing 100050, China
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Guerra J, Matta L, Bartelt A. Cardiac proteostasis in obesity and cardiovascular disease. Herz 2024; 49:118-123. [PMID: 38329532 PMCID: PMC10917825 DOI: 10.1007/s00059-024-05233-6] [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] [Accepted: 01/17/2024] [Indexed: 02/09/2024]
Abstract
Cardiovascular diseases (CVD) are closely linked to protein homeostasis (proteostasis) and its failure. Beside genetic mutations that impair cardiac protein quality control, obesity is a strong risk factor for heart disease. In obesity, adipose tissue becomes dysfunctional and impacts heart function and CVD progression by releasing cytokines that contribute to systemic insulin resistance and cardiovascular dysfunction. In addition, chronic inflammation and lipotoxicity compromise endoplasmic reticulum (ER) function, eliciting stress responses that overwhelm protein quality control beyond its capacity. Impairment of proteostasis-including dysfunction of the ubiquitin-proteasome system (UPS), autophagy, and the depletion of chaperones-is intricately linked to cardiomyocyte dysfunction. Interventions targeting UPS and autophagy pathways are new potential strategies for re-establishing protein homeostasis and improving heart function. Additionally, lifestyle modifications such as dietary interventions and exercise have been shown to promote cardiac proteostasis and overall metabolic health. The pursuit of future research dedicated to proteostasis and protein quality control represents a pioneering approach for enhancing cardiac health and addressing the complexities of obesity-related cardiac dysfunction.
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Affiliation(s)
- Joel Guerra
- Institute for Cardiovascular Prevention (IPEK), Faculty of Medicine, Ludwig-Maximilians-Universität München, Max-Lebsche-Platz 30, 81377, Munich, Germany
- Institute for Diabetes and Cancer (IDC), Helmholtz Center Munich, German Research Center for Environmental Health, Neuherberg, Germany
| | - Leonardo Matta
- Institute for Cardiovascular Prevention (IPEK), Faculty of Medicine, Ludwig-Maximilians-Universität München, Max-Lebsche-Platz 30, 81377, Munich, Germany
- Institute for Diabetes and Cancer (IDC), Helmholtz Center Munich, German Research Center for Environmental Health, Neuherberg, Germany
| | - Alexander Bartelt
- Institute for Cardiovascular Prevention (IPEK), Faculty of Medicine, Ludwig-Maximilians-Universität München, Max-Lebsche-Platz 30, 81377, Munich, Germany.
- Institute for Diabetes and Cancer (IDC), Helmholtz Center Munich, German Research Center for Environmental Health, Neuherberg, Germany.
- German Center for Cardiovascular Research, Partner Site Munich Heart Alliance, Munich, Germany.
- German Center for Diabetes Research, Neuherberg, Germany.
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Cho SY, Choi JS, Jung UJ. Effects of Ecklonia stolonifera Extract on Metabolic Dysregulation in High-Fat Diet-Induced Obese Mice. J Med Food 2024; 27:242-249. [PMID: 38354279 DOI: 10.1089/jmf.2023.k.0252] [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] [Indexed: 02/16/2024] Open
Abstract
This study aimed to test the hypothesis that long-term and low-dose supplementation with an ethanol extract of Ecklonia stolonifera may confer protection against high-fat diet (HFD)-induced obesity in mice. Male C57BL/6J mice were divided into two groups, one of which was fed an HFD (40 kcal% fat) and the other an HFD+E. stolonifera (0.006%, w/w, ∼5 mg/kg body weight/day) for 16 weeks. E. stolonifera supplementation significantly reduced body weight from week 3 and until the end of the experiment. E. stolonifera-supplemented mice also exhibited lower fat mass (epididymal, perirenal, and mesenteric fat) and smaller adipocyte size than HFD control mice. The two groups displayed similar food intakes, but E. stolonifera markedly decreased lipogenesis and increased lipolysis and fatty acid oxidation in adipose tissue. Moreover, E. stolonifera significantly decreased plasma and hepatic lipid levels, hepatic lipid droplet accumulation, plasma aminotransferase levels, and liver weight by decreasing lipogenesis and increasing fatty acid oxidation. As E. stolonifera-supplemented mice showed improvements in hyperglycemia, insulin resistance, and inflammation, compared to control mice, it is possible that the beneficial effects of E. stolonifera on obesity might be associated with decreased inflammation and insulin resistance. Collectively, these results indicate that E. stolonifera could be used as a novel means of preventing and treating obesity and obesity-related metabolic disorders.
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Affiliation(s)
- Su Yeon Cho
- Department of Food Science and Nutrition, Pukyong National University, Busan, Korea
| | - Jae Sue Choi
- Department of Food Science and Nutrition, Pukyong National University, Busan, Korea
| | - Un Ju Jung
- Department of Food Science and Nutrition, Pukyong National University, Busan, Korea
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Nathalie G, Bonamichi BDSF, Kim J, Jeong J, Kang H, Hartland ER, Eveline E, Lee J. NK cell-activating receptor NKp46 does not participate in the development of obesity-induced inflammation and insulin resistance. Mol Cells 2024; 47:100007. [PMID: 38238205 PMCID: PMC11004397 DOI: 10.1016/j.mocell.2023.100007] [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: 12/14/2023] [Revised: 12/20/2023] [Accepted: 12/21/2023] [Indexed: 04/06/2024] Open
Abstract
Recent evidence establishes a pivotal role for obesity-induced inflammation in precipitating insulin resistance and type-2 diabetes. Central to this process is the proinflammatory M1 adipose-tissue macrophages (ATMs) in epididymal white adipose tissue (eWAT). Notably, natural killer (NK) cells are a crucial regulator of ATMs since their cytokines induce ATM recruitment and M1 polarization. The importance of NK cells is shown by the strong increase in NK-cell numbers in eWAT, and by studies showing that removing and expanding NK cells respectively improve and worsen obesity-induced insulin resistance. It has been suggested that NK cells are activated by unknown ligands on obesity-stressed adipocytes that bind to NKp46 (encoded by Ncr1), which is an activating NK-cell receptor. This was supported by a study showing that NKp46-knockout mice have improved obesity-induced inflammation/insulin resistance. We therefore planned to use the NKp46-knockout mice to further elucidate the molecular mechanism by which NKp46 mediates eWAT NK-cell activation in obesity. We confirmed that obesity increased eWAT NKp46+ NK-cell numbers and NKp46 expression in wild-type mice and that NKp46-knockout ablated these responses. Unexpectedly, however, NKp46-knockout mice demonstrated insulin resistance similar to wild-type mice, as shown by fasting blood glucose/insulin levels and glucose/insulin tolerance tests. Obesity-induced increases in eWAT ATM numbers and proinflammatory gene expression were also similar. Thus, contrary to previously published results, NKp46 does not regulate obesity-induced insulin resistance. It is therefore unclear whether NKp46 participates in the development of obesity-induced inflammation and insulin resistance. This should be considered when elucidating the obesity-mediated molecular mechanisms that activate NK cells.
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Affiliation(s)
- Gracia Nathalie
- Soonchunhyang Institute of Medi-Bio Science (SIMS) and Department of Integrated Biomedical Science, Soonchunhyang University, Cheonan-si, South Korea
| | | | - Jieun Kim
- Soonchunhyang Institute of Medi-Bio Science (SIMS) and Department of Integrated Biomedical Science, Soonchunhyang University, Cheonan-si, South Korea
| | - Jiwon Jeong
- Soonchunhyang Institute of Medi-Bio Science (SIMS) and Department of Integrated Biomedical Science, Soonchunhyang University, Cheonan-si, South Korea
| | - Haneul Kang
- Soonchunhyang Institute of Medi-Bio Science (SIMS) and Department of Integrated Biomedical Science, Soonchunhyang University, Cheonan-si, South Korea
| | - Emirrio Reinaldie Hartland
- Soonchunhyang Institute of Medi-Bio Science (SIMS) and Department of Integrated Biomedical Science, Soonchunhyang University, Cheonan-si, South Korea
| | - Eveline Eveline
- Soonchunhyang Institute of Medi-Bio Science (SIMS) and Department of Integrated Biomedical Science, Soonchunhyang University, Cheonan-si, South Korea
| | - Jongsoon Lee
- Soonchunhyang Institute of Medi-Bio Science (SIMS) and Department of Integrated Biomedical Science, Soonchunhyang University, Cheonan-si, South Korea; Joslin Diabetes Center, Harvard Medical School, Boston, MA, USA.
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49
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Apalowo OE, Adegoye GA, Obuotor TM. Microbial-Based Bioactive Compounds to Alleviate Inflammation in Obesity. Curr Issues Mol Biol 2024; 46:1810-1831. [PMID: 38534735 DOI: 10.3390/cimb46030119] [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: 02/07/2024] [Revised: 02/20/2024] [Accepted: 02/23/2024] [Indexed: 03/28/2024] Open
Abstract
The increased prevalence of obesity with several other metabolic disorders, including diabetes and non-alcoholic fatty liver disease, has reached global pandemic proportions. Lifestyle changes may result in a persistent positive energy balance, hastening the onset of these age-related disorders and consequently leading to a diminished lifespan. Although suggestions have been raised on the possible link between obesity and the gut microbiota, progress has been hampered due to the extensive diversity and complexities of the gut microbiota. Being recognized as a potential biomarker owing to its pivotal role in metabolic activities, the dysregulation of the gut microbiota can give rise to a persistent low-grade inflammatory state associated with chronic diseases during aging. This chronic inflammatory state, also known as inflammaging, induced by the chronic activation of the innate immune system via the macrophage, is controlled by the gut microbiota, which links nutrition, metabolism, and the innate immune response. Here, we present the functional roles of prebiotics, probiotics, synbiotics, and postbiotics as bioactive compounds by underscoring their putative contributions to (1) the reduction in gut hyperpermeability due to lipopolysaccharide (LPS) inactivation, (2) increased intestinal barrier function as a consequence of the upregulation of tight junction proteins, and (3) inhibition of proinflammatory pathways, overall leading to the alleviation of chronic inflammation in the management of obesity.
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Affiliation(s)
- Oladayo Emmanuel Apalowo
- Department of Food Science, Nutrition and Health Promotion, Mississippi State University, Starkville, MS 39762, USA
| | - Grace Adeola Adegoye
- Department of Nutrition and Health Science, Ball State University, Muncie, IN 47306, USA
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50
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Jurado-Fasoli L, Sanchez-Delgado G, Di X, Yang W, Kohler I, Villarroya F, Aguilera CM, Hankemeier T, Ruiz JR, Martinez-Tellez B. Cold-induced changes in plasma signaling lipids are associated with a healthier cardiometabolic profile independently of brown adipose tissue. Cell Rep Med 2024; 5:101387. [PMID: 38262411 PMCID: PMC10897514 DOI: 10.1016/j.xcrm.2023.101387] [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: 06/21/2023] [Revised: 09/27/2023] [Accepted: 12/22/2023] [Indexed: 01/25/2024]
Abstract
Cold exposure activates brown adipose tissue (BAT) and potentially improves cardiometabolic health through the secretion of signaling lipids by BAT. Here, we show that 2 h of cold exposure in young adults increases the levels of omega-6 and omega-3 oxylipins, the endocannabinoids (eCBs) anandamide and docosahexaenoylethanolamine, and lysophospholipids containing polyunsaturated fatty acids. Contrarily, it decreases the levels of the eCBs 1-LG and 2-LG and 1-OG and 2-OG, lysophosphatidic acids, and lysophosphatidylethanolamines. Participants overweight or obese show smaller increases in omega-6 and omega-3 oxylipins levels compared to normal weight. We observe that only a small proportion (∼4% on average) of the cold-induced changes in the plasma signaling lipids are slightly correlated with BAT volume. However, cold-induced changes in omega-6 and omega-3 oxylipins are negatively correlated with adiposity, glucose homeostasis, lipid profile, and liver parameters. Lastly, a 24-week exercise-based randomized controlled trial does not modify plasma signaling lipid response to cold exposure.
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Affiliation(s)
- Lucas Jurado-Fasoli
- Department of Physical Education and Sports, Faculty of Sports Science, Sport and Health University Research Institute (iMUDS), University of Granada, Carretera de Alfacar s/n, 18071 Granada, Spain; Department of Physiology, Faculty of Medicine, University of Granada, Granada, Spain
| | - Guillermo Sanchez-Delgado
- Department of Physical Education and Sports, Faculty of Sports Science, Sport and Health University Research Institute (iMUDS), University of Granada, Carretera de Alfacar s/n, 18071 Granada, Spain; Department of Medicine, Division of Endocrinology, Centre de Recherche du Centre Hospitalier Universitaire de Sherbrooke, Université de Sherbrooke, Sherbrooke, QC, Canada; CIBER de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain; Instituto de Investigación Biosanitaria, Ibs.Granada, Granada, Spain
| | - Xinyu Di
- Metabolomics and Analytics Center, Leiden Academic Centre for Drug Research (LACDR), Leiden University, Leiden, the Netherlands
| | - Wei Yang
- Metabolomics and Analytics Center, Leiden Academic Centre for Drug Research (LACDR), Leiden University, Leiden, the Netherlands
| | - Isabelle Kohler
- Vrije Universiteit Amsterdam, Amsterdam Institute of Molecular and Life Sciences (AIMMS), Division of BioAnalytical Chemistry, Amsterdam, the Netherlands; Center for Analytical Sciences Amsterdam, Amsterdam, the Netherlands
| | - Francesc Villarroya
- CIBER de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain; Department of Biochemistry and Molecular Biomedicine, Institute of Biomedicine of the University of Barcelona, Barcelona, Spain
| | - Concepcion M Aguilera
- CIBER de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain; Instituto de Investigación Biosanitaria, Ibs.Granada, Granada, Spain; Department of Biochemistry and Molecular Biology II, "José Mataix Verdú" Institute of Nutrition and Food Technology (INYTA), Biomedical Research Centre (CIBM), University of Granada, 18016 Granada, Spain
| | - Thomas Hankemeier
- Metabolomics and Analytics Center, Leiden Academic Centre for Drug Research (LACDR), Leiden University, Leiden, the Netherlands
| | - Jonatan R Ruiz
- Department of Physical Education and Sports, Faculty of Sports Science, Sport and Health University Research Institute (iMUDS), University of Granada, Carretera de Alfacar s/n, 18071 Granada, Spain; CIBER de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain; Instituto de Investigación Biosanitaria, Ibs.Granada, Granada, Spain.
| | - Borja Martinez-Tellez
- Department of Physical Education and Sports, Faculty of Sports Science, Sport and Health University Research Institute (iMUDS), University of Granada, Carretera de Alfacar s/n, 18071 Granada, Spain; CIBER de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain; Department of Education, Faculty of Education Sciences and SPORT Research Group (CTS-1024), CERNEP Research Center, University of Almería, Almería, Spain.
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