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Shi M, Yang S, Zhao X, Sun D, Li Y, Yang J, Li M, Cai C, Guo X, Li B, Lu C, Cao G. Effect of LncRNA LOC106505926 on myogenesis and Lipogenesis of porcine primary cells. BMC Genomics 2024; 25:530. [PMID: 38816813 PMCID: PMC11137989 DOI: 10.1186/s12864-024-10422-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Accepted: 05/16/2024] [Indexed: 06/01/2024] Open
Abstract
BACKGROUND Skeletal muscle development and fat deposition have important effects on meat quality. The study of regulating skeletal muscle development and fat deposition is of great significance in improving the quality of carcass and meat. In the present study, whole transcriptome sequencing (including RNA-Seq and miRNA-Seq) was performed on the longissimus dorsi muscle (LDM) of Jinfen White pigs at 1, 90, and 180 days of age. RESULTS The results showed that a total of 245 differentially expressed miRNAs were screened in any two comparisons, which may be involved in the regulation of myogenesis. Among them, compared with 1-day-old group, miR-22-5p was significantly up-regulated in 90-day-old group and 180-day-old group. Functional studies demonstrated that miR-22-5p inhibited the proliferation and differentiation of porcine skeletal muscle satellite cells (PSCs). Pearson correlation coefficient analysis showed that long non-coding RNA (lncRNA) LOC106505926 and CXXC5 gene had strong negative correlations with miR-22-5p. The LOC106505926 and CXXC5 were proven to promote the proliferation and differentiation of PSCs, as opposed to miR-22-5p. In terms of mechanism, LOC106505926 functions as a molecular sponge of miR-22-5p to modulate the expression of CXXC5, thereby inhibits the differentiation of PSCs. In addition, LOC106505926 regulates the differentiation of porcine preadipocytes through direct binding with FASN. CONCLUSIONS Collectively, our results highlight the multifaceted regulatory role of LOC106505926 in controlling skeletal muscle and adipose tissue development in pigs and provide new targets for improving the quality of livestock products by regulating skeletal muscle development and fat deposition.
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Affiliation(s)
- Mingyue Shi
- College of Animal Science, Shanxi Agricultural University, Taigu, 030801, China
| | - Shuai Yang
- Shanxi Animal Husbandry Technology Extension Service Center, Taiyuan, 030001, China
| | - Xiaolei Zhao
- College of Animal Science, Shanxi Agricultural University, Taigu, 030801, China
| | - Di Sun
- College of Animal Science, Shanxi Agricultural University, Taigu, 030801, China
| | - Yifei Li
- College of Animal Science, Shanxi Agricultural University, Taigu, 030801, China
| | - Jingxian Yang
- College of Animal Science, Shanxi Agricultural University, Taigu, 030801, China
| | - Meng Li
- College of Animal Science, Shanxi Agricultural University, Taigu, 030801, China
| | - Chunbo Cai
- College of Animal Science, Shanxi Agricultural University, Taigu, 030801, China
| | - Xiaohong Guo
- College of Animal Science, Shanxi Agricultural University, Taigu, 030801, China
| | - Bugao Li
- College of Animal Science, Shanxi Agricultural University, Taigu, 030801, China
| | - Chang Lu
- College of Animal Science, Shanxi Agricultural University, Taigu, 030801, China.
| | - Guoqing Cao
- College of Animal Science, Shanxi Agricultural University, Taigu, 030801, China.
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Başarır Sivri FN, Çiftçi S. A New Insight into Fatty Acid Binding Protein 4 Mechanisms and Therapeutic Implications in Obesity-Associated Diseases: A Mini Review. Mol Nutr Food Res 2024; 68:e2300840. [PMID: 38593305 DOI: 10.1002/mnfr.202300840] [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: 11/24/2023] [Revised: 02/14/2024] [Indexed: 04/11/2024]
Abstract
Fatty acid binding proteins (FABPs), such as FABP4 (aP2, A-FABP), are essential for cellular lipid regulation, membrane-protein interactions, and the modulation of metabolic and inflammatory pathways. FABP4, primarily expressed in adipocytes, monocytes, and macrophages, is integrated into signaling networks that influence immune responses and insulin activity. It has been linked to obesity, inflammation, lipid metabolism, insulin resistance, diabetes, cardiovascular disease, and cancer. Inhibition of FABP4 is emerging as a promising strategy for treating obesity-related conditions, particularly insulin resistance and diabetes. Elevated FABP4 levels in individuals with a BMI above 30 underscore its association with obesity. Furthermore, FABP4 levels are higher not only in the tissues but also in the blood, promoting the onset and development of various cancers. Understanding its broader role reveals involvement in the mechanisms underlying metabolic syndrome, contributing to various metabolic and inflammatory responses. While blocking FABP4 offers an alternative therapeutic approach, a comprehensive understanding of potential side effects is crucial before clinical use. This review aims to provide concise insights into FABP4, elucidating its mechanisms and potential therapeutic applications in obesity and associated disorders, contributing to innovative interventions against metabolic syndrome and obesity.
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Affiliation(s)
- Feyza Nur Başarır Sivri
- Faculty of Health Sciences, Department of Nutrition and Dietetics, Izmir Democracy University, Güzelyalı, Konak, İzmir, 35290, Turkey
| | - Seda Çiftçi
- Faculty of Health Sciences, Department of Nutrition and Dietetics, Izmir Democracy University, Güzelyalı, Konak, İzmir, 35290, Turkey
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Kim DH, Song NY, Yim H. Targeting dysregulated lipid metabolism in the tumor microenvironment. Arch Pharm Res 2023; 46:855-881. [PMID: 38060103 PMCID: PMC10725365 DOI: 10.1007/s12272-023-01473-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Accepted: 11/25/2023] [Indexed: 12/08/2023]
Abstract
The reprogramming of lipid metabolism and its association with oncogenic signaling pathways within the tumor microenvironment (TME) have emerged as significant hallmarks of cancer. Lipid metabolism is defined as a complex set of molecular processes including lipid uptake, synthesis, transport, and degradation. The dysregulation of lipid metabolism is affected by enzymes and signaling molecules directly or indirectly involved in the lipid metabolic process. Regulation of lipid metabolizing enzymes has been shown to modulate cancer development and to avoid resistance to anticancer drugs in tumors and the TME. Because of this, understanding the metabolic reprogramming associated with oncogenic progression is important to develop strategies for cancer treatment. Recent advances provide insight into fundamental mechanisms and the connections between altered lipid metabolism and tumorigenesis. In this review, we explore alterations to lipid metabolism and the pivotal factors driving lipid metabolic reprogramming, which exacerbate cancer progression. We also shed light on the latest insights and current therapeutic approaches based on small molecular inhibitors and phytochemicals targeting lipid metabolism for cancer treatment. Further investigations are worthwhile to fully understand the underlying mechanisms and the correlation between altered lipid metabolism and carcinogenesis.
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Affiliation(s)
- Do-Hee Kim
- Department of Chemistry, College of Convergence and Integrated Science, Kyonggi University, Suwon, 16227, Korea
| | - Na-Young Song
- Department of Applied Life Science, The Graduate School, BK21 Four Project, Yonsei University, Seoul, 03722, Korea
- Department of Oral Biology, Yonsei University College of Dentistry, Seoul, 03722, Korea
| | - Hyungshin Yim
- Department of Pharmacy, College of Pharmacy, Institute of Pharmaceutical Science and Technology, Hanyang University, Ansan, 15588, Korea.
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An Y, Cao B, Li K, Xu Y, Zhao W, Zhao D, Ke J. A Prediction Model for Sight-Threatening Diabetic Retinopathy Based on Plasma Adipokines among Patients with Mild Diabetic Retinopathy. J Diabetes Res 2023; 2023:8831609. [PMID: 37920605 PMCID: PMC10620016 DOI: 10.1155/2023/8831609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 08/13/2023] [Accepted: 08/24/2023] [Indexed: 11/04/2023] Open
Abstract
Background Accumulating evidence has suggested a link between adipokines and diabetic retinopathy (DR). This study is aimed at investigating the risk factors for sight-threatening DR (STDR) and establishing a prognostic model for predicting STDR among a high-risk population of patients with type 2 diabetes mellitus (T2DM). Methods Plasma concentrations of adipokines were determined by enzyme-linked immunosorbent assay. In the case-control set, principal component analysis (PCA) was performed to select optimal predictive cytokines for STDR, involving severe nonproliferative DR (NPDR) and proliferative DR. Support vector machine (SVM) was used to examine the possible combination of baseline plasma adipokines to discriminate the patients with mild NPDR who will later develop STDR. An individual prospective cohort with a follow-up period of 3 years was used for the external validation. Results In both training and testing sets, involving 306 patients with T2DM, median levels of plasma adiponectin (APN), leptin, and fatty acid-binding protein 4 (FABP4) were significantly higher in the STDR group than those in mild NPDR. Except for adipsin, the other three adipokines, FABP4, APN, and leptin, were selected by PCA and integrated into SVM. The accuracy of the multivariate SVM classification model was acceptable in both the training set (AUC = 0.81, sensitivity = 71%, and specificity = 91%) and the testing set (AUC = 0.77, sensitivity = 61%, and specificity = 92%). 110 T2DM patients with mild NPDR, the high-risk population of STDR, were enrolled for external validation. Based on the SVM, the risk of each patient was calculated. More STDR occurred in the high-risk group than in the low-risk group, which were grouped by the median value of APN, FABP4, and leptin, respectively. The model was validated in an individual cohort using SVM with the AUC, sensitivity, and specificity reaching 0.77, 64%, and 91%, respectively. Conclusions Adiponectin, leptin, and FABP4 were demonstrated to be associated with the severity of DR and maybe good predictors for STDR, suggesting that adipokines may play an important role in the pathophysiology of DR development.
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Affiliation(s)
- Yaxin An
- Center for Endocrine Metabolism and Immune Diseases, Beijing Luhe Hospital, Capital Medical University, Beijing 101149, China
| | - Bin Cao
- Center for Endocrine Metabolism and Immune Diseases, Beijing Luhe Hospital, Capital Medical University, Beijing 101149, China
| | - Kun Li
- Beijing Key Laboratory of Diabetes Research and Care, Beijing 101149, China
| | - Yongsong Xu
- Beijing Key Laboratory of Diabetes Research and Care, Beijing 101149, China
| | - Wenying Zhao
- Center for Endocrine Metabolism and Immune Diseases, Beijing Luhe Hospital, Capital Medical University, Beijing 101149, China
| | - Dong Zhao
- Center for Endocrine Metabolism and Immune Diseases, Beijing Luhe Hospital, Capital Medical University, Beijing 101149, China
- Beijing Key Laboratory of Diabetes Research and Care, Beijing 101149, China
| | - Jing Ke
- Center for Endocrine Metabolism and Immune Diseases, Beijing Luhe Hospital, Capital Medical University, Beijing 101149, China
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González‐Ferrero T, Bergonti M, López‐Canoa JN, Arias FG, Eiras Penas S, Spera F, González‐Maestro A, Minguito‐Carazo C, Martínez‐Sande JL, González‐Melchor L, García‐Seara FJ, Fernández‐López JA, Álvarez‐Castro E, González‐Juanatey JR, Heidbuchel H, Sarkozy A, Rodríguez‐Mañero M. Atrial fibrillation ablation in patients with arrhythmia-induced cardiomyopathy: a prospective multicentre study. ESC Heart Fail 2023; 10:3055-3066. [PMID: 37593841 PMCID: PMC10567669 DOI: 10.1002/ehf2.14448] [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: 01/17/2023] [Revised: 04/27/2023] [Accepted: 06/08/2023] [Indexed: 08/19/2023] Open
Abstract
AIMS This study aims to investigate the clinical and biochemical characteristics of patients with atrial fibrillation (AF) referred for ablation who develop arrhythmia-induced cardiomyopathy (AiCM) as well as their long-term outcomes after catheter ablation (CA). METHODS AND RESULTS A prospective multicentre study was conducted on consecutive AF patients who underwent CA. AiCM was defined as the development of heart failure in the presence of AF and an improvement of left ventricular fraction by at least 10% at 6 months after ablation. A subgroup of patients underwent peripheral and left atrial blood samples [galectin-3, fatty acid-binding protein 4 (FABP4), and soluble receptor for advanced glycation end products (sRAGE)] at the time of the procedure. Of the 769 patients who underwent AF ablation, 135 (17.56%) met the criteria for AiCM. Independent predictors of AiCM included persistent AF, male gender, left atrial volume, QRS width, active smoking, and chronic kidney disease (CKD). Biomarker analysis revealed that sRAGE, FABP4, and galectin-3 levels were not predictive of AiCM development nor did they differ between groups or predict recurrence. There were no differences in AF recurrence between patients with and without AiCM (30.83% vs. 27.77%; P = 0.392) during a median follow-up of 23.83 months (inter-quartile range 9-36). CONCLUSIONS In the subset of patients referred for AF ablation, the development of AiCM was associated with persistent AF and CKD. Biomarker analysis was not different between groups nor predicted recurrence. Patients with AiCM benefited from ablation, with a significant improvement in left ventricular ejection fraction and similar AF recurrence rates to those without AiCM.
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Affiliation(s)
- Teba González‐Ferrero
- Cardiovascular Area and Coronary UnitUniversity Clinical Hospital of Santiago de CompostelaSantiago de CompostelaSpain
- Translational Cardiology Group, Health Research Institute of Santiago de Compostela (IDIS)University Clinical Hospital of Santiago de CompostelaTravesía da Choupana s/nSantiago de Compostela15706A CoruñaSpain
- CIBERCVCarlos III Health InstituteMadridSpain
| | - Marco Bergonti
- Department of CardiologyAntwerp University HospitalAntwerpBelgium
- Cardiovascular Research, GENCORUniversity of AntwerpAntwerpBelgium
- Division of Cardiology, Cardiocentro Ticino InstituteEnte Ospedaliero CantonaleLuganoSwitzerland
| | - José Nicolás López‐Canoa
- CIBERCVCarlos III Health InstituteMadridSpain
- Department of CardiologyUniversity Hospital Complex of PontevedraPontevedraSpain
| | - Federico García‐Rodeja Arias
- Cardiovascular Area and Coronary UnitUniversity Clinical Hospital of Santiago de CompostelaSantiago de CompostelaSpain
- Translational Cardiology Group, Health Research Institute of Santiago de Compostela (IDIS)University Clinical Hospital of Santiago de CompostelaTravesía da Choupana s/nSantiago de Compostela15706A CoruñaSpain
- CIBERCVCarlos III Health InstituteMadridSpain
| | - Sonia Eiras Penas
- Translational Cardiology Group, Health Research Institute of Santiago de Compostela (IDIS)University Clinical Hospital of Santiago de CompostelaTravesía da Choupana s/nSantiago de Compostela15706A CoruñaSpain
- CIBERCVCarlos III Health InstituteMadridSpain
| | - Francesco Spera
- Department of CardiologyAntwerp University HospitalAntwerpBelgium
- Cardiovascular Research, GENCORUniversity of AntwerpAntwerpBelgium
| | - Adrián González‐Maestro
- Translational Cardiology Group, Health Research Institute of Santiago de Compostela (IDIS)University Clinical Hospital of Santiago de CompostelaTravesía da Choupana s/nSantiago de Compostela15706A CoruñaSpain
| | - Carlos Minguito‐Carazo
- Cardiovascular Area and Coronary UnitUniversity Clinical Hospital of Santiago de CompostelaSantiago de CompostelaSpain
- Translational Cardiology Group, Health Research Institute of Santiago de Compostela (IDIS)University Clinical Hospital of Santiago de CompostelaTravesía da Choupana s/nSantiago de Compostela15706A CoruñaSpain
- CIBERCVCarlos III Health InstituteMadridSpain
| | - José Luis Martínez‐Sande
- Cardiovascular Area and Coronary UnitUniversity Clinical Hospital of Santiago de CompostelaSantiago de CompostelaSpain
- Translational Cardiology Group, Health Research Institute of Santiago de Compostela (IDIS)University Clinical Hospital of Santiago de CompostelaTravesía da Choupana s/nSantiago de Compostela15706A CoruñaSpain
- CIBERCVCarlos III Health InstituteMadridSpain
| | - Laila González‐Melchor
- Cardiovascular Area and Coronary UnitUniversity Clinical Hospital of Santiago de CompostelaSantiago de CompostelaSpain
- Translational Cardiology Group, Health Research Institute of Santiago de Compostela (IDIS)University Clinical Hospital of Santiago de CompostelaTravesía da Choupana s/nSantiago de Compostela15706A CoruñaSpain
- CIBERCVCarlos III Health InstituteMadridSpain
| | - Francisco Javier García‐Seara
- Cardiovascular Area and Coronary UnitUniversity Clinical Hospital of Santiago de CompostelaSantiago de CompostelaSpain
- Translational Cardiology Group, Health Research Institute of Santiago de Compostela (IDIS)University Clinical Hospital of Santiago de CompostelaTravesía da Choupana s/nSantiago de Compostela15706A CoruñaSpain
- CIBERCVCarlos III Health InstituteMadridSpain
| | - Jesús Alberto Fernández‐López
- Cardiovascular Area and Coronary UnitUniversity Clinical Hospital of Santiago de CompostelaSantiago de CompostelaSpain
- Translational Cardiology Group, Health Research Institute of Santiago de Compostela (IDIS)University Clinical Hospital of Santiago de CompostelaTravesía da Choupana s/nSantiago de Compostela15706A CoruñaSpain
- CIBERCVCarlos III Health InstituteMadridSpain
| | - Ezequiel Álvarez‐Castro
- Translational Cardiology Group, Health Research Institute of Santiago de Compostela (IDIS)University Clinical Hospital of Santiago de CompostelaTravesía da Choupana s/nSantiago de Compostela15706A CoruñaSpain
- CIBERCVCarlos III Health InstituteMadridSpain
| | - José Ramón González‐Juanatey
- Cardiovascular Area and Coronary UnitUniversity Clinical Hospital of Santiago de CompostelaSantiago de CompostelaSpain
- Translational Cardiology Group, Health Research Institute of Santiago de Compostela (IDIS)University Clinical Hospital of Santiago de CompostelaTravesía da Choupana s/nSantiago de Compostela15706A CoruñaSpain
- CIBERCVCarlos III Health InstituteMadridSpain
| | - Hein Heidbuchel
- Department of CardiologyAntwerp University HospitalAntwerpBelgium
- Cardiovascular Research, GENCORUniversity of AntwerpAntwerpBelgium
| | - Andrea Sarkozy
- Department of CardiologyAntwerp University HospitalAntwerpBelgium
- Cardiovascular Research, GENCORUniversity of AntwerpAntwerpBelgium
| | - Moisés Rodríguez‐Mañero
- Cardiovascular Area and Coronary UnitUniversity Clinical Hospital of Santiago de CompostelaSantiago de CompostelaSpain
- Translational Cardiology Group, Health Research Institute of Santiago de Compostela (IDIS)University Clinical Hospital of Santiago de CompostelaTravesía da Choupana s/nSantiago de Compostela15706A CoruñaSpain
- CIBERCVCarlos III Health InstituteMadridSpain
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Liu X, Zheng T, Tao MY, Huang R, Zhang GH, Yang MN, Xu YJ, Wang WJ, He H, Fang F, Dong Y, Fan JG, Zhang J, Ouyang F, Li F, Luo ZC. Cord blood fatty acid binding protein 4 and lipids in infants born small- or large-for-gestational-age. Front Pediatr 2023; 11:1078048. [PMID: 37274820 PMCID: PMC10237290 DOI: 10.3389/fped.2023.1078048] [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: 10/24/2022] [Accepted: 04/28/2023] [Indexed: 06/07/2023] Open
Abstract
Aim Adverse (poor or excessive) fetal growth "programs" an elevated risk of type 2 diabetes. Fatty acid binding protein 4 (FABP4) has been implicated in regulating insulin sensitivity and lipid metabolism relevant to fetal growth. We sought to determine whether FABP4 is associated with poor or excessive fetal growth and fetal lipids. Methods In a nested case-control study in the Shanghai Birth Cohort including 60 trios of small-for-gestational-age (SGA, an indicator of poor fetal growth), large-for-gestational-age (LGA, an indicator of excessive fetal growth) and optimal-for-gestational-age (OGA, control) infants, we measured cord blood concentrations of FABP4 and lipids [high-density lipoprotein (HDL) and low-density lipoprotein (LDL) cholesterols, triglycerides (TG)]. Results Adjusting for maternal and neonatal characteristics, higher cord blood FABP4 concentrations were associated with a lower odds of SGA [OR = 0.29 (0.11-0.77) per log unit increment in FABP4, P = 0.01], but were not associated with LGA (P = 0.46). Cord blood FABP4 was positively correlated with both LDL (r = 0.29, P = 0.025) and HDL (r = 0.33, P = 0.01) in LGA infants only. Conclusion FABP4 was inversely associated with the risk of SGA. The study is the first to demonstrate LGA-specific positive correlations of cord blood FABP4 with HDL and LDL cholesterols, suggesting a role of FABP4 in fetal lipid metabolism in subjects with excessive fetal growth.
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Affiliation(s)
- Xin Liu
- Ministry of Education-Shanghai Key Laboratory of Children’s Environmental Health, Early Life Health Institute, and Department of Pediatrics, Xinhua Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, China
- Lunenfeld-Tanenbaum Research Institute, Prosserman Centre for Population Health Research, Department of Obstetrics and Gynecology, Mount Sinai Hospital, Temerty Faculty of Medicine, University of Toronto, Toronto, Canada
| | - Tao Zheng
- Department of Obstetrics and Gynecology, Xinhua Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, China
| | - Min-Yi Tao
- Ministry of Education-Shanghai Key Laboratory of Children’s Environmental Health, Early Life Health Institute, and Department of Pediatrics, Xinhua Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, China
| | - Rong Huang
- Lunenfeld-Tanenbaum Research Institute, Prosserman Centre for Population Health Research, Department of Obstetrics and Gynecology, Mount Sinai Hospital, Temerty Faculty of Medicine, University of Toronto, Toronto, Canada
| | - Guang-Hui Zhang
- Department of Clinical Assay Laboratory, Xinhua Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, China
| | - Meng-Nan Yang
- Ministry of Education-Shanghai Key Laboratory of Children’s Environmental Health, Early Life Health Institute, and Department of Pediatrics, Xinhua Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, China
| | - Ya-Jie Xu
- Ministry of Education-Shanghai Key Laboratory of Children’s Environmental Health, Early Life Health Institute, and Department of Pediatrics, Xinhua Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, China
| | - Wen-Juan Wang
- Ministry of Education-Shanghai Key Laboratory of Children’s Environmental Health, Early Life Health Institute, and Department of Pediatrics, Xinhua Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, China
- Clinical Skills Center, School of Clinical Medicine, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China
| | - Hua He
- Ministry of Education-Shanghai Key Laboratory of Children’s Environmental Health, Early Life Health Institute, and Department of Pediatrics, Xinhua Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, China
| | - Fang Fang
- Ministry of Education-Shanghai Key Laboratory of Children’s Environmental Health, Early Life Health Institute, and Department of Pediatrics, Xinhua Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, China
| | - Yu Dong
- Ministry of Education-Shanghai Key Laboratory of Children’s Environmental Health, Early Life Health Institute, and Department of Pediatrics, Xinhua Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, China
| | - Jian-Gao Fan
- Center for Fatty Liver, Shanghai Key Lab of Pediatric Gastroenterology and Nutrition, Department of Gastroenterology, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jun Zhang
- Ministry of Education-Shanghai Key Laboratory of Children’s Environmental Health, Early Life Health Institute, and Department of Pediatrics, Xinhua Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, China
| | - Fengxiu Ouyang
- Ministry of Education-Shanghai Key Laboratory of Children’s Environmental Health, Early Life Health Institute, and Department of Pediatrics, Xinhua Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, China
| | - Fei Li
- Ministry of Education-Shanghai Key Laboratory of Children’s Environmental Health, Early Life Health Institute, and Department of Pediatrics, Xinhua Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, China
| | - Zhong-Cheng Luo
- Ministry of Education-Shanghai Key Laboratory of Children’s Environmental Health, Early Life Health Institute, and Department of Pediatrics, Xinhua Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, China
- Lunenfeld-Tanenbaum Research Institute, Prosserman Centre for Population Health Research, Department of Obstetrics and Gynecology, Mount Sinai Hospital, Temerty Faculty of Medicine, University of Toronto, Toronto, Canada
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D'Ambrosio M, Bigagli E, Cinci L, Gencarelli M, Chioccioli S, Biondi N, Rodolfi L, Niccolai A, Zambelli F, Laurino A, Raimondi L, Tredici MR, Luceri C. Tisochrysis lutea F&M-M36 Mitigates Risk Factors of Metabolic Syndrome and Promotes Visceral Fat Browning through β3-Adrenergic Receptor/UCP1 Signaling. Mar Drugs 2023; 21:md21050303. [PMID: 37233497 DOI: 10.3390/md21050303] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Revised: 05/12/2023] [Accepted: 05/16/2023] [Indexed: 05/27/2023] Open
Abstract
Pre-metabolic syndrome (pre-MetS) may represent the best transition phase to start treatments aimed at reducing cardiometabolic risk factors of MetS. In this study, we investigated the effects of the marine microalga Tisochrysis lutea F&M-M36 (T. lutea) on cardiometabolic components of pre-MetS and its underlying mechanisms. Rats were fed a standard (5% fat) or a high-fat diet (20% fat) supplemented or not with 5% of T. lutea or fenofibrate (100 mg/Kg) for 3 months. Like fenofibrate, T. lutea decreased blood triglycerides (p < 0.01) and glucose levels (p < 0.01), increased fecal lipid excretion (p < 0.05) and adiponectin (p < 0.001) without affecting weight gain. Unlike fenofibrate, T. lutea did not increase liver weight and steatosis, reduced renal fat (p < 0.05), diastolic (p < 0.05) and mean arterial pressure (p < 0.05). In visceral adipose tissue (VAT), T. lutea, but not fenofibrate, increased the β3-adrenergic receptor (β3ADR) (p < 0.05) and Uncoupling protein 1 (UCP-1) (p < 0.001) while both induced glucagon-like peptide-1 receptor (GLP1R) protein expression (p < 0.001) and decreased interleukin (IL)-6 and IL-1β gene expression (p < 0.05). Pathway analysis on VAT whole-gene expression profiles showed that T. lutea up-regulated energy-metabolism-related genes and down-regulated inflammatory and autophagy pathways. The multitarget activity of T. lutea suggests that this microalga could be useful in mitigating risk factors of MetS.
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Affiliation(s)
- Mario D'Ambrosio
- Department of NEUROFARBA, Section of Pharmacology and Toxicology, University of Florence, Viale Pieraccini 6, 50139 Florence, Italy
- Enteric Neuroscience Program, Department of Medicine, Section of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN 55905, USA
| | - Elisabetta Bigagli
- Department of NEUROFARBA, Section of Pharmacology and Toxicology, University of Florence, Viale Pieraccini 6, 50139 Florence, Italy
| | - Lorenzo Cinci
- Department of NEUROFARBA, Section of Pharmacology and Toxicology, University of Florence, Viale Pieraccini 6, 50139 Florence, Italy
| | - Manuela Gencarelli
- Department of NEUROFARBA, Section of Pharmacology and Toxicology, University of Florence, Viale Pieraccini 6, 50139 Florence, Italy
| | - Sofia Chioccioli
- Department of NEUROFARBA, Section of Pharmacology and Toxicology, University of Florence, Viale Pieraccini 6, 50139 Florence, Italy
| | - Natascia Biondi
- Department of Agriculture, Food, Environment and Forestry (DAGRI), University of Florence, Piazzale delle Cascine 18, 50144 Florence, Italy
| | - Liliana Rodolfi
- Department of Agriculture, Food, Environment and Forestry (DAGRI), University of Florence, Piazzale delle Cascine 18, 50144 Florence, Italy
- Fotosintetica & Microbiologica S.r.l., Via di Santo Spirito 14, 50125 Florence, Italy
| | - Alberto Niccolai
- Department of Agriculture, Food, Environment and Forestry (DAGRI), University of Florence, Piazzale delle Cascine 18, 50144 Florence, Italy
| | - Francesca Zambelli
- Department of NEUROFARBA, Section of Pharmacology and Toxicology, University of Florence, Viale Pieraccini 6, 50139 Florence, Italy
| | - Annunziatina Laurino
- Department of NEUROFARBA, Section of Pharmacology and Toxicology, University of Florence, Viale Pieraccini 6, 50139 Florence, Italy
| | - Laura Raimondi
- Department of NEUROFARBA, Section of Pharmacology and Toxicology, University of Florence, Viale Pieraccini 6, 50139 Florence, Italy
| | - Mario R Tredici
- Department of Agriculture, Food, Environment and Forestry (DAGRI), University of Florence, Piazzale delle Cascine 18, 50144 Florence, Italy
| | - Cristina Luceri
- Department of NEUROFARBA, Section of Pharmacology and Toxicology, University of Florence, Viale Pieraccini 6, 50139 Florence, Italy
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8
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FABP4 Controls Fat Mass Expandability (Adipocyte Size and Number) through Inhibition of CD36/SR-B2 Signalling. Int J Mol Sci 2023; 24:ijms24021032. [PMID: 36674544 PMCID: PMC9867004 DOI: 10.3390/ijms24021032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 12/31/2022] [Accepted: 01/02/2023] [Indexed: 01/07/2023] Open
Abstract
Adipose tissue hypertrophy during obesity plays pleiotropic effects on health. Adipose tissue expandability depends on adipocyte size and number. In mature adipocytes, lipid accumulation as triglycerides into droplets is imbalanced by lipid uptake and lipolysis. In previous studies, we showed that adipogenesis induced by oleic acid is signed by size increase and reduction of FAT/CD36 (SR-B2) activity. The present study aims to decipher the mechanisms involved in fat mass regulation by fatty acid/FAT-CD36 signalling. Human adipose stem cells, 3T3-L1, and its 3T3-MBX subclone cell lines were used in 2D cell cultures or co-cultures to monitor in real-time experiments proliferation, differentiation, lipolysis, and/or lipid uptake and activation of FAT/CD36 signalling pathways regulated by oleic acid, during adipogenesis and/or regulation of adipocyte size. Both FABP4 uptake and its induction by fatty acid-mediated FAT/CD36-PPARG gene transcription induce accumulation of intracellular FABP4, which in turn reduces FAT/CD36, and consequently exerts a negative feedback loop on FAT/CD36 signalling in both adipocytes and their progenitors. Both adipocyte size and recruitment of new adipocytes are under the control of FABP4 stores. This study suggests that FABP4 controls fat mass homeostasis.
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Zhang W, Zhang Y, Zhu Q. Cigarette smoke extract-mediated FABP4 upregulation suppresses viability and induces apoptosis, inflammation and oxidative stress of bronchial epithelial cells by activating p38 MAPK/MK2 signaling pathway. J Inflamm (Lond) 2022; 19:7. [PMID: 35706027 PMCID: PMC9202166 DOI: 10.1186/s12950-022-00304-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Accepted: 06/06/2022] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
Long-term inhalation of cigarette smoke is considered to be one of the main causes of bronchial epithelioid cell damage, but its underlying mechanism has to be further clarified.
Methods
Gene expression at mRNA level and protein levels were detected by qRT-PCR and western blot analysis respectively. CCK-8, TUNEL assays, ELISA, western blot analysis and commercial kits were utilized to test cell viability, apoptosis inflammatory response and oxidative stress. The correlation between fatty acid binding protein 4 (FABP4) and the p38 mitogen-activated protein kinase (MAPK)/MAPK activated kinase 2 (MK2) signaling pathway was verified by western blot analysis and rescue assays.
Results
Cigarette smoke extract (CSE) exposure decreased viability, induced apoptosis and inflammatory response in 16HBE cells. Moreover, the expression of FABP4 in CSE-treated 16HBE cells was up-regulated in a time and dose-dependent manner. Ablation of FABP4 in 16HBE cells significantly protected against CSE-mediated cell viability decline and apoptosis. Further, FABP4 knockdown suppressed inflammatory response by down-regulating the elevated levels of cellular inflammatory factors including TNF-α, IL-1β, IL-6, Cyclooxygenase-2 (Cox-2) and inducible nitric oxide synthase (iNOS) in CSE-treated 16HBE cells. The oxidative stress induced by CSE in 16HBE cells was also inhibited by FABP4 silence as evidence by reduced ROS and MDA level but increased SOD activity caused by FABP4 silence. Finally, all the above effects of FABP4 silence on CSE-treated 16HBE cells were reversed by asiatic acid, an agonist of p38 mitogen-activated protein kinase (MAPK).
Conclusions
The up-regulation of FABP4 expression mediated by CSE exerted pro-inflammatory, pro-oxidative stress and pro-apoptotic effects on bronchial epithelial cells by activating the p38 MAPK/MK2 signaling pathway. Our findings help to further understand the underlying mechanism of cigarette smoke-induced bronchial inflammation.
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10
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Correale J, Marrodan M. Multiple sclerosis and obesity: The role of adipokines. Front Immunol 2022; 13:1038393. [PMID: 36457996 PMCID: PMC9705772 DOI: 10.3389/fimmu.2022.1038393] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Accepted: 10/28/2022] [Indexed: 11/24/2023] Open
Abstract
Multiple Sclerosis (MS), a chronic inflammatory disease of the central nervous system that leads to demyelination and neurodegeneration has been associated with various environmental and lifestyle factors. Population-based studies have provided evidence showing the prevalence of MS is increasing worldwide. Because a similar trend has been observed for obesity and metabolic syndrome, interest has grown in possible underlying biological mechanisms shared by both conditions. Adipokines, a family of soluble factors produced by adipose tissue that participate in a wide range of biological functions, contribute to a low state of chronic inflammation observed in obesity, and influence immune function, metabolism, and nutritional state. In this review, we aim to describe epidemiological and biological factors common to MS and obesity, as well as provide an update on current knowledge of how different pro- and anti-inflammatory adipokines participate as immune response mediators in MS, as well as in the animal model for MS, namely, experimental autoimmune encephalomyelitis (EAE). Multiple Sclerosis (MS) is a chronic inflammatory disease of the central nervous system (CNS) leading to demyelination, and neurodegeneration. Although its pathogenesis is not yet fully understood, there is considerable evidence to suggest MS arises from complex interactions between individual genetic susceptibility and external environmental factors. In recent decades, population-based studies have provided evidence indicating the prevalence of MS is increasing worldwide, in parallel with the rise in obesity and metabolic syndrome. This synchronous increment in the incidence of both MS and obesity has led to a search for potential biological mechanisms linking both conditions. Notably, a large number of studies have established significant correlation between obesity and higher prevalence, or worse prognosis, of several immune-mediated conditions. Fat tissue has been found to produce a variety of soluble factors named adipokines. These mediators, secreted by both adipocytes as well as diverse immune cells, participate in a wide range of biological functions, further strengthening the concept of a link between immune function, metabolism, and nutritional state. Because obesity causes overproduction of pro-inflammatory adipokines (namely leptin, resistin and visfatin) and reduction of anti-inflammatory adipokines (adiponectin and apelin), adipose tissue dysregulation would appear to contribute to a state of chronic, low-grade inflammation favoring the development of disease. In this review, we present a summary of current knowledge related to the pathological effects of different adipokines, prevalent in obese MS patients.
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Affiliation(s)
- Jorge Correale
- Departamento de Neurología, Fleni, Buenos Aires, Argentina
- Instituto de Química y Fisicoquímica Biológicas (IQUIFIB), Universidad de Buenos Aires/Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
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11
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Wan Z, Fu S, Wang Z, Xu Y, Zhou Y, Lin X, Lan R, Han X, Luo Z, Miao J. FABP4-mediated lipid droplet formation in Streptococcus uberis-infected macrophages supports host defence. Vet Res 2022; 53:90. [PMID: 36371263 PMCID: PMC9652580 DOI: 10.1186/s13567-022-01114-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Accepted: 09/16/2022] [Indexed: 11/15/2022] Open
Abstract
Foamy macrophages containing prominent cytoplasmic lipid droplets (LDs) are found in a variety of infectious diseases. However, their role in Streptococcus uberis-induced mastitis is unknown. Herein, we report that S. uberis infection enhances the fatty acid synthesis pathway in macrophages, resulting in a sharp increase in LD levels, accompanied by a significantly enhanced inflammatory response. This process is mediated by the involvement of fatty acid binding protein 4 (FABP4), a subtype of the fatty acid-binding protein family that plays critical roles in metabolism and inflammation. In addition, FABP4 siRNA inhibitor cell models showed that the deposition of LDs decreased, and the mRNA expression of Tnf, Il1b and Il6 was significantly downregulated after gene silencing. As a result, the bacterial load in macrophages increased. Taken together, these data demonstrate that macrophage LD formation is a host-driven component of the immune response to S. uberis. FABP4 contributes to promoting inflammation via LDs, which should be considered a new target for drug development to treat infections.
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Zhang JS, Yeh WC, Tsai YW, Chen JY. The Relationship between Atherogenic Index of Plasma and Obesity among Adults in Taiwan. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph192214864. [PMID: 36429582 PMCID: PMC9691148 DOI: 10.3390/ijerph192214864] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 10/27/2022] [Accepted: 11/09/2022] [Indexed: 05/27/2023]
Abstract
Atherogenic index of plasma (AIP), a novel biomarker, is associated with cardiovascular diseases and obesity. The main aim of this study was to investigate the relationship between AIP and obesity among Taiwanese hospital employees. A total of 1312 subjects with an average age of 42.39 years were enrolled in this cross-sectional study. AIP was calculated as log10 (TG/HDL-C). All subjects were divided into three groups according to AIP tertiles. Chi-square test, independent t-test and one-way ANOVA were used to compare the demographic and clinical lab characteristics of the three groups. Multivariate logistic regression analysis was used to assess the relationship between AIP and obesity. The results showed that subjects with obesity or with high AIP levels exhibited significant differences in systolic blood pressure, diastolic blood pressure, waist circumference, alanine aminotransferase, fasting plasma glucose, high-density lipoprotein cholesterol, low-density lipoprotein cholesterol, triglycerides and prevalence of diabetes mellitus, hypertension, hyperlipidemia and metabolic syndrome. In addition, age and total cholesterol were increased in the high AIP group. Increased AIP levels were strongly associated with obesity.
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Affiliation(s)
| | - Wei-Chung Yeh
- Department of Family Medicine, Chang Gung Memorial Hospital, Keelung 204, Taiwan
- College of Medicine, Chang Gung University, Taoyuan 333, Taiwan
- Department of Family Medicine, Chang Gung Memorial Hospital, Linkou Branch, Taoyuan 333, Taiwan
| | - Yi-Wen Tsai
- College of Medicine, Chang Gung University, Taoyuan 333, Taiwan
- Department of Family Medicine, Chang Gung Memorial Hospital, Linkou Branch, Taoyuan 333, Taiwan
- Department of Family Medicine, New Taipei Municipal TuCheng Hospital (Built and Operated by Chang Gung Medical Foundation), New Taipei City 236, Taiwan
| | - Jau-Yuan Chen
- College of Medicine, Chang Gung University, Taoyuan 333, Taiwan
- Department of Family Medicine, Chang Gung Memorial Hospital, Linkou Branch, Taoyuan 333, Taiwan
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López-Canoa JN, Couselo-Seijas M, González-Ferrero T, Almengló C, Álvarez E, González-Maestro A, González-Melchor L, Martínez-Sande JL, García-Seara J, Fernández-López J, Kreidieh B, González-Babarro E, González-Juanatey JR, Eiras S, Rodríguez-Mañero M. The Role of Fatty Acid-Binding Protein 4 in the Characterization of Atrial Fibrillation and the Prediction of Outcomes after Catheter Ablation. Int J Mol Sci 2022; 23:ijms231911107. [PMID: 36232410 PMCID: PMC9570077 DOI: 10.3390/ijms231911107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 09/18/2022] [Accepted: 09/19/2022] [Indexed: 11/16/2022] Open
Abstract
Aims: The utility of biomarkers in characterizing atrial cardiomyopathy is unclear. We aim to test the ability of biomarkers of fibrosis (galectin-3 (Gal-3)) and adiposity (fatty acid-binding protein 4 (FABP4) and leptin) to predict: (1) the presence of low-voltage areas (LVA) in the electroanatomic voltage mapping; and (2) the recurrence of atrial fibrillation (AF) after pulmonary vein isolation (PVI). Methods: Patients referred for PVI were enrolled. Areas of bipolar voltage < 0.5 mV were considered as LVA. An aggregate score incorporating AF pattern (paroxysmal, persistent and long-standing persistent) and peripheral levels of FABP4 (>20 ng/mL) was developed. Results: 299 patients were included. AF was paroxysmal in 100 (33%), persistent in 130 (43%) and long-standing persistent in 69 (23%). Multivariable analysis revealed age, left atrium area, and the proposed score as independent predictors of LVA. During a mean follow-up period of 972 ± 451 days, freedom from AF recurrence was 63%. The score incorporating AF pattern and FABP4 levels accurately predicted freedom from AF recurrence, stratifying risk into ranges from 28% (score of 1) to 68% (score of 3). Cox regression models identified the score including AF pattern + FABP4 as the best model for AF recurrence (hazard ratio 2.32; 95% CI, 1.19 to 4.5; p = 0.014). Conclusions: Traditional clinical classification of atrial cardiomyopathy may be improved by markers of adiposity (FABP4). The combination allows better prediction of the presence of LVA and AF recurrence post-PVI. Gal-3 provided no added predictive value.
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Affiliation(s)
- José Nicolás López-Canoa
- Cardiovascular Department, Hospital Complex of Pontevedra, 36071 Pontevedra, Spain
- Cardiology Translational Group, Health Research Institute of Santiago de Compostela, 15706 Santiago de Compostela, Spain
- Department of Medicine, University of Santiago de Compostela, 15706 Santiago de Compostela, Spain
| | - Marinela Couselo-Seijas
- Cardiology Translational Group, Health Research Institute of Santiago de Compostela, 15706 Santiago de Compostela, Spain
| | - Teba González-Ferrero
- Cardiology Translational Group, Health Research Institute of Santiago de Compostela, 15706 Santiago de Compostela, Spain
- Cardiovascular Department, Hospital Complex of Santiago de Compostela, 15706 Santiago de Compostela, Spain
| | - Cristina Almengló
- Cardiology Translational Group, Health Research Institute of Santiago de Compostela, 15706 Santiago de Compostela, Spain
| | - Ezequiel Álvarez
- Cardiology Translational Group, Health Research Institute of Santiago de Compostela, 15706 Santiago de Compostela, Spain
- Department of Medicine, University of Santiago de Compostela, 15706 Santiago de Compostela, Spain
- CIBERCV, Institute of Health Carlos III, 28220 Madrid, Spain
| | - Adrián González-Maestro
- Cardiology Translational Group, Health Research Institute of Santiago de Compostela, 15706 Santiago de Compostela, Spain
| | - Laila González-Melchor
- Cardiovascular Department, Hospital Complex of Santiago de Compostela, 15706 Santiago de Compostela, Spain
| | - José Luis Martínez-Sande
- Cardiology Translational Group, Health Research Institute of Santiago de Compostela, 15706 Santiago de Compostela, Spain
- Department of Medicine, University of Santiago de Compostela, 15706 Santiago de Compostela, Spain
- Cardiovascular Department, Hospital Complex of Santiago de Compostela, 15706 Santiago de Compostela, Spain
- CIBERCV, Institute of Health Carlos III, 28220 Madrid, Spain
| | - Javier García-Seara
- Cardiology Translational Group, Health Research Institute of Santiago de Compostela, 15706 Santiago de Compostela, Spain
- Cardiovascular Department, Hospital Complex of Santiago de Compostela, 15706 Santiago de Compostela, Spain
- CIBERCV, Institute of Health Carlos III, 28220 Madrid, Spain
| | - Jesús Fernández-López
- Cardiology Translational Group, Health Research Institute of Santiago de Compostela, 15706 Santiago de Compostela, Spain
- Cardiovascular Department, Hospital Complex of Santiago de Compostela, 15706 Santiago de Compostela, Spain
| | - Bahij Kreidieh
- Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02115, USA
| | - Eva González-Babarro
- Cardiovascular Department, Hospital Complex of Pontevedra, 36071 Pontevedra, Spain
| | - José Ramón González-Juanatey
- Cardiology Translational Group, Health Research Institute of Santiago de Compostela, 15706 Santiago de Compostela, Spain
- Department of Medicine, University of Santiago de Compostela, 15706 Santiago de Compostela, Spain
- Cardiovascular Department, Hospital Complex of Santiago de Compostela, 15706 Santiago de Compostela, Spain
- CIBERCV, Institute of Health Carlos III, 28220 Madrid, Spain
| | - Sonia Eiras
- Cardiology Translational Group, Health Research Institute of Santiago de Compostela, 15706 Santiago de Compostela, Spain
- CIBERCV, Institute of Health Carlos III, 28220 Madrid, Spain
| | - Moisés Rodríguez-Mañero
- Cardiology Translational Group, Health Research Institute of Santiago de Compostela, 15706 Santiago de Compostela, Spain
- Department of Medicine, University of Santiago de Compostela, 15706 Santiago de Compostela, Spain
- Cardiovascular Department, Hospital Complex of Santiago de Compostela, 15706 Santiago de Compostela, Spain
- CIBERCV, Institute of Health Carlos III, 28220 Madrid, Spain
- Correspondence:
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Muneerungsee N, Tanasawet S, Moolsap F, Udomuksorn W, Tantisira M, Zaima N, Sukketsiri W. The standardized Centella asiatica extract suppressed the inflammation and apoptosis in macrophage-conditioned medium and nutrient stress-induced adipocytes. Biologia (Bratisl) 2022. [DOI: 10.1007/s11756-022-01194-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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15
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Sun N, Zhao X. Therapeutic Implications of FABP4 in Cancer: An Emerging Target to Tackle Cancer. Front Pharmacol 2022; 13:948610. [PMID: 35899119 PMCID: PMC9310032 DOI: 10.3389/fphar.2022.948610] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Accepted: 06/23/2022] [Indexed: 11/13/2022] Open
Abstract
Metabolic reprogramming is an emerging hallmark of tumor cells. In order to survive in nutrient-deprived environment, tumor cells rewire their metabolic phenotype to provide sufficient energy and build biomass to sustain their transformed state and promote malignant behaviors. Fatty acid uptake and trafficking is an essential part of lipid metabolism within tumor cells. Fatty acid-binding proteins (FABPs), which belongs to a family of intracellular lipid-binding protein, can bind hydrophobic ligands to regulate lipid trafficking and metabolism. In particular, adipocyte fatty acid binding protein (FABP4), one of the most abundant members, has been found to be upregulated in many malignant solid tumors, and correlated with poor prognosis. In multiple tumor types, FABP4 is critical for tumor proliferation, metastasis and drug resistance. More importantly, FABP4 is a crucial driver of malignancy not only by activating the oncogenic signaling pathways, but also rewiring the metabolic phenotypes of tumor cells to satisfy their enhanced energy demand for tumor development. Thus, FABP4 serves as a tumor-promoting molecule in most cancer types, and may be a promising therapeutic target for cancer treatment.
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Affiliation(s)
- Naihui Sun
- Department of Anesthesiology, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Xing Zhao
- Department of Pediatrics, The First Affiliated Hospital of China Medical University, Shenyang, China
- *Correspondence: Xing Zhao,
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16
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Huang P, Zhao X, Sun Y, Wang X, Ouyang R, Jiang Y, Zhang X, Hu R, Tang Z, Gu Y. Fatty Acid-Binding Protein 4 in Patients with and without Diabetic Retinopathy. Diabetes Metab J 2022; 46:640-649. [PMID: 35483673 PMCID: PMC9353565 DOI: 10.4093/dmj.2021.0195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Accepted: 11/15/2021] [Indexed: 12/04/2022] Open
Abstract
BACKGROUND Fatty acid-binding protein 4 (FABP4) has been demonstrated to be a predictor of early diabetic nephropathy. However, little is known about the relationship between FABP4 and diabetic retinopathy (DR). This study explored the value of FABP4 as a biomarker of DR in patients with type 2 diabetes mellitus (T2DM). METHODS A total of 238 subjects were enrolled, including 20 healthy controls and 218 T2DM patients. Serum FABP4 levels were measured using a sandwich enzyme-linked immunosorbent assay. The grade of DR was determined using fundus fluorescence angiography. Based on the international classification of DR, all T2DM patients were classified into the following three subgroups: non-DR group, non-proliferative diabetic retinopathy (NPDR) group, and proliferative diabetic retinopathy (PDR) group. Multivariate logistic regression analyses were employed to assess the correlation between FABP4 levels and DR severity. RESULTS FABP4 correlated positively with DR severity (r=0.225, P=0.001). Receiver operating characteristic curve analysis was used to assess the diagnostic potential of FABP4 in identifying DR, with an area under the curve of 0.624 (37% sensitivity, 83.6% specificity) and an optimum cut-off value of 76.4 μg/L. Multivariate logistic regression model including FABP4 as a categorized binary variable using the cut-off value of 76.4 μg/L showed that the concentration of FABP4 above the cut-off value increased the risk of NPDR (odds ratio [OR], 3.231; 95% confidence interval [CI], 1.574 to 6.632; P=0.001) and PDR (OR, 3.689; 95% CI, 1.306 to 10.424; P=0.014). CONCLUSION FABP4 may be used as a serum biomarker for the diagnosis of DR.
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Affiliation(s)
- Ping Huang
- Department of Endocrinology and Metabolism, Affiliated Hospital of Nantong University, Nantong, China
- Nantong University, Nantong, China
| | - Xiaoqin Zhao
- Department of Endocrinology and Metabolism, Affiliated Hospital of Nantong University, Nantong, China
| | - Yi Sun
- Department of Endocrinology and Metabolism, Affiliated Hospital of Nantong University, Nantong, China
| | - Xinlei Wang
- Department of Endocrinology and Metabolism, Affiliated Hospital of Nantong University, Nantong, China
| | - Rong Ouyang
- Department of Endocrinology and Metabolism, Affiliated Hospital of Nantong University, Nantong, China
| | - Yanqiu Jiang
- Department of Endocrinology and Metabolism, Affiliated Hospital of Nantong University, Nantong, China
- Nantong University, Nantong, China
| | - Xiaoquan Zhang
- Department of Internal Medicine, Jianghai Hospital of Nantong Sutong Science and Technology Park, Nantong, China
| | - Renyue Hu
- Department of Endocrinology and Metabolism, Affiliated Hospital of Nantong University, Nantong, China
- Nantong University, Nantong, China
| | - Zhuqi Tang
- Department of Endocrinology and Metabolism, Affiliated Hospital of Nantong University, Nantong, China
| | - Yunjuan Gu
- Department of Endocrinology and Metabolism, Affiliated Hospital of Nantong University, Nantong, China
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Lei CX, Xie YJ, Li SJ, Jiang P, Du JX, Tian JJ. Fabp4 contributes toward regulating inflammatory gene expression and oxidative stress in Ctenopharyngodon idella. Comp Biochem Physiol B Biochem Mol Biol 2022; 259:110715. [PMID: 34999220 DOI: 10.1016/j.cbpb.2022.110715] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 12/20/2021] [Accepted: 01/04/2022] [Indexed: 12/12/2022]
Abstract
Fatty acid-binding protein (Fabp)-4 is a member of the FABP family. Mammalian fabp4 has been demonstrated to involve in inflammation and immunity, whereas the related data of fish fabp4 remain limited. Therefore, we further investigated the effects of fabp4 on immunity in Ctenopharyngodon idella. The fabp4 sequence spanned 405 bp was cloned first, sharing high identity to fabp4 from other fish and mammals. Fabp4 expression was the highest in the adipose tissue, followed by the heart, muscle, and liver. In vivo, lipopolysaccharide (LPS) triggered the expression of fabp4, toll-like receptor (tlr)-22, interleukin (il)-1β, and tumor necrosis factor (tnf)-α in the kidney and spleen. In vitro, exposing C. idella CIK cells to LPS decreased their viability, and the expression of fabp4 was also increased by LPS. However, BMS309403, an inhibitor of FABP4, mitigated these effects. Furthermore, treating the cells with LPS or fabp4 overexpression plasmids resulted in reactive oxygen species (ROS) generation and upregulation of inflammatory genes expression, including tlr22, type-I interferon (ifn-1), interferon regulatory factor (irf)-7, tnfα, il-1β, and interferon-β promoter stimulator 1. These effects were ameliorated by preincubation with BMS309403. Moreover, incubating the cells with glutathione reduced the production of ROS and the expression of inflammatory genes that were evoked by LPS and plasmid treatments. These results showed that fabp4 acts as a pro-inflammatory molecule via elevating ROS levels, providing a novel understanding of the molecular regulation of innate immunity in teleosts.
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Affiliation(s)
- Cai-Xia Lei
- Key Laboratory of Aquatic Animal Immune Technology of Guangdong Province, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510380, PR China; Key Laboratory of Tropical & Subtropical Fishery Resource Application & Cultivation, Ministry of Agriculture and Rural Affairs, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510380, PR China
| | - Yu-Jing Xie
- Key Laboratory of Tropical & Subtropical Fishery Resource Application & Cultivation, Ministry of Agriculture and Rural Affairs, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510380, PR China; College of Fisheries and Life Science, Shanghai Ocean University, Shanghai 201306, PR China
| | - Sheng-Jie Li
- Key Laboratory of Aquatic Animal Immune Technology of Guangdong Province, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510380, PR China; Key Laboratory of Tropical & Subtropical Fishery Resource Application & Cultivation, Ministry of Agriculture and Rural Affairs, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510380, PR China.
| | - Peng Jiang
- Key Laboratory of Tropical & Subtropical Fishery Resource Application & Cultivation, Ministry of Agriculture and Rural Affairs, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510380, PR China
| | - Jin-Xing Du
- Key Laboratory of Tropical & Subtropical Fishery Resource Application & Cultivation, Ministry of Agriculture and Rural Affairs, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510380, PR China
| | - Jing-Jing Tian
- Key Laboratory of Tropical & Subtropical Fishery Resource Application & Cultivation, Ministry of Agriculture and Rural Affairs, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510380, PR China
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Yue Y, Hua Y, Zhang J, Guo Y, Zhao D, Huo W, Xiong Y, Chen F, Lin Y, Xiong X, Li J. Establishment of a subcutaneous adipogenesis model and distinct roles of LKB1 regulation on adipocyte lipid accumulation in high-altitude Bos grunniens. JOURNAL OF APPLIED ANIMAL RESEARCH 2022. [DOI: 10.1080/09712119.2022.2042001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Yongqi Yue
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization, Ministry of Education, Chengdu, People’s Republic of China
- College of Animal &Veterinary Sciences, Southwest Minzu University, Chengdu, People’s Republic of China
| | - Yonglin Hua
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization, Ministry of Education, Chengdu, People’s Republic of China
- College of Animal &Veterinary Sciences, Southwest Minzu University, Chengdu, People’s Republic of China
| | - Jing Zhang
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization, Ministry of Education, Chengdu, People’s Republic of China
- College of Animal &Veterinary Sciences, Southwest Minzu University, Chengdu, People’s Republic of China
| | - Yu Guo
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization, Ministry of Education, Chengdu, People’s Republic of China
- College of Animal &Veterinary Sciences, Southwest Minzu University, Chengdu, People’s Republic of China
| | - Dan Zhao
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization, Ministry of Education, Chengdu, People’s Republic of China
- College of Animal &Veterinary Sciences, Southwest Minzu University, Chengdu, People’s Republic of China
| | - Wentao Huo
- College of Animal &Veterinary Sciences, Southwest Minzu University, Chengdu, People’s Republic of China
| | - Yan Xiong
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization, Ministry of Education, Chengdu, People’s Republic of China
- Key Laboratory of Animal Science of National Ethnic Affairs Commission of China, Southwest Minzu University, Chengdu, People’s Republic of China
- College of Animal &Veterinary Sciences, Southwest Minzu University, Chengdu, People’s Republic of China
| | - Fenfen Chen
- School of Life Sciences, Southwest Forestry University, Kunming, People’s Republic of China
| | - Yaqiu Lin
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization, Ministry of Education, Chengdu, People’s Republic of China
- Key Laboratory of Animal Science of National Ethnic Affairs Commission of China, Southwest Minzu University, Chengdu, People’s Republic of China
- College of Animal &Veterinary Sciences, Southwest Minzu University, Chengdu, People’s Republic of China
| | - Xianrong Xiong
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization, Ministry of Education, Chengdu, People’s Republic of China
- Key Laboratory of Animal Science of National Ethnic Affairs Commission of China, Southwest Minzu University, Chengdu, People’s Republic of China
- College of Animal &Veterinary Sciences, Southwest Minzu University, Chengdu, People’s Republic of China
| | - Jian Li
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization, Ministry of Education, Chengdu, People’s Republic of China
- Key Laboratory of Animal Science of National Ethnic Affairs Commission of China, Southwest Minzu University, Chengdu, People’s Republic of China
- College of Animal &Veterinary Sciences, Southwest Minzu University, Chengdu, People’s Republic of China
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19
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Ren Y, Zhao H, Yin C, Lan X, Wu L, Du X, Griffiths HR, Gao D. Adipokines, Hepatokines and Myokines: Focus on Their Role and Molecular Mechanisms in Adipose Tissue Inflammation. Front Endocrinol (Lausanne) 2022; 13:873699. [PMID: 35909571 PMCID: PMC9329830 DOI: 10.3389/fendo.2022.873699] [Citation(s) in RCA: 51] [Impact Index Per Article: 25.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Accepted: 06/17/2022] [Indexed: 11/18/2022] Open
Abstract
Chronic low-grade inflammation in adipose tissue (AT) is a hallmark of obesity and contributes to various metabolic disorders, such as type 2 diabetes and cardiovascular diseases. Inflammation in ATs is characterized by macrophage infiltration and the activation of inflammatory pathways mediated by NF-κB, JNK, and NLRP3 inflammasomes. Adipokines, hepatokines and myokines - proteins secreted from AT, the liver and skeletal muscle play regulatory roles in AT inflammation via endocrine, paracrine, and autocrine pathways. For example, obesity is associated with elevated levels of pro-inflammatory adipokines (e.g., leptin, resistin, chemerin, progranulin, RBP4, WISP1, FABP4, PAI-1, Follistatin-like1, MCP-1, SPARC, SPARCL1, and SAA) and reduced levels of anti-inflammatory adipokines such as adiponectin, omentin, ZAG, SFRP5, CTRP3, vaspin, and IL-10. Moreover, some hepatokines (Fetuin A, DPP4, FGF21, GDF15, and MANF) and myokines (irisin, IL-6, and DEL-1) also play pro- or anti-inflammatory roles in AT inflammation. This review aims to provide an updated understanding of these organokines and their role in AT inflammation and related metabolic abnormalities. It serves to highlight the molecular mechanisms underlying the effects of these organokines and their clinical significance. Insights into the roles and mechanisms of these organokines could provide novel and potential therapeutic targets for obesity-induced inflammation.
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Affiliation(s)
- Yakun Ren
- Institute of Molecular and Translational Medicine, Xian Jiaotong University Health Science Center, Xi’an, China
| | - Hao Zhao
- School of Basic Medical Sciences, Xi’an Jiaotong University Health Science Center, Xi’an, China
| | - Chunyan Yin
- Department of Pediatrics, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Xi Lan
- Institute of Molecular and Translational Medicine, Xian Jiaotong University Health Science Center, Xi’an, China
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Xi’an Jiaotong University Health Science Center, Xi’an, China
| | - Litao Wu
- Institute of Molecular and Translational Medicine, Xian Jiaotong University Health Science Center, Xi’an, China
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Xi’an Jiaotong University Health Science Center, Xi’an, China
| | - Xiaojuan Du
- Institute of Molecular and Translational Medicine, Xian Jiaotong University Health Science Center, Xi’an, China
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Xi’an Jiaotong University Health Science Center, Xi’an, China
| | - Helen R. Griffiths
- Swansea University Medical School, Swansea University, Swansea, United Kingdom
| | - Dan Gao
- Institute of Molecular and Translational Medicine, Xian Jiaotong University Health Science Center, Xi’an, China
- Department of Human Anatomy, Histology and Embryology, School of Basic Medical Sciences, Xi’an Jiaotong University Health Center, Xi’an, China
- *Correspondence: Dan Gao,
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20
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Kugo H, Sukketsiri W, Iwamoto K, Suihara S, Moriyama T, Zaima N. Low glucose and serum levels cause an increased inflammatory factor in 3T3-L1 cell through Akt, MAPKs and NF-кB activation. Adipocyte 2021; 10:232-241. [PMID: 33896390 PMCID: PMC8078669 DOI: 10.1080/21623945.2021.1914420] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
Abdominal aortic aneurysm (AAA) involves the degradation of vascular fibres, and dilation and rupture of the abdominal aorta. Hypoperfusion in the vascular walls due to stenosis of the vasa vasorum is reportedly a cause of AAA onset and involves the induction of adventitial ectopic adipocytes. Recent studies have reported that ectopic adipocytes are associated with AAA rupture in both human and hypoperfusion-induced animal models, highlighting the pathological importance of hypoperfusion and adipocytes in AAA. However, the relationship between hypoperfusion and AAA remains unknown. In this study, we investigated the changes in inflammation-related factors in adipocytes at low glucose and serum levels. Low glucose and serum levels enhanced the production of AAA-related factors in 3T3-L1 cells. Low glucose and serum levels increased the activation of protein kinase B (also known as Akt), extracellular signal-regulated protein kinase 1/2, p38, c-Jun N-terminal kinase, and nuclear factor (NF) кB at the protein level. The inflammatory factors and related signalling pathways were markedly decreased following the return of the cells to normal culture conditions. These data suggest that low glucose and serum levels increase the levels of inflammatory factors through the activation of Akt, mitogen activated protein kinase, and NF-κB signalling pathways.
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Affiliation(s)
- Hirona Kugo
- Department of Applied Biological Chemistry, Graduate School of Agriculture, Kindai University, Nara City, Japan
| | - Wanida Sukketsiri
- Department of Pharmacology, Division of Health and Applied Sciences, Faculty of Science, Prince of Songkla University, Songkhla, Thailand
| | - Kazuko Iwamoto
- Department of Applied Biological Chemistry, Graduate School of Agriculture, Kindai University, Nara City, Japan
- Department of Health and Nutrition, Faculty of Health Science, Osaka Aoyama University, Minoh City, Japan
| | - Satoki Suihara
- Department of Applied Biological Chemistry, Graduate School of Agriculture, Kindai University, Nara City, Japan
| | - Tatsuya Moriyama
- Department of Applied Biological Chemistry, Graduate School of Agriculture, Kindai University, Nara City, Japan
- Agricultural Technology and Innovation Research Institute, Kindai University, Nara, Japan
| | - Nobuhiro Zaima
- Department of Applied Biological Chemistry, Graduate School of Agriculture, Kindai University, Nara City, Japan
- Agricultural Technology and Innovation Research Institute, Kindai University, Nara, Japan
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21
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Zhou S, Wang X, Shi J, Han Q, He L, Tang W, Zhang A. Serum fatty acid binding protein 4 levels are associated with abdominal aortic calcification in peritoneal dialysis patients. Ren Fail 2021; 43:1539-1548. [PMID: 34789046 PMCID: PMC8604498 DOI: 10.1080/0886022x.2021.2003205] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Background Fatty acid binding protein 4 (FABP4) is an adipokine that was mainly derived from adipocytes and macrophages. Vascular calcification (VC) is highly prevalent in peritoneal dialysis (PD) patients and could predict their cardiovascular mortality. The pathogenesis of VC is complex, and adipokines may play an important role in it. This study aimed to examine the relationship between serum FABP4 and VC in PD patients. Methods Serum FABP4 was measured by enzyme-linked immunosorbent assay. According to the median value of serum FABP4, the participants were divided into the low FABP4 group and the high FABP4 group. Lateral plain X-ray films of abdomen were used to evaluate the abdominal aortic calcification (AAC) score. The participants were divided into the high AAC score group (AAC score ≥4, indicating moderate or heavy VC) and the low AAC score group (AAC score <4, indicating no or mild VC). Results 116 PD patients were involved in the study. The AAC score and the proportion of patients with an AAC score ≥4 of the high FABP4 group were significantly higher than those of the low FABP4 group. Serum FABP4 of the high AAC score group was significantly higher than that of the low AAC score group [164.5 (138.4, 362.8) ng/mL versus 144.7 (123.8, 170.1) ng/mL, p = 0.002]. Serum FABP4 was positively associated with the AAC score according to the multivariate linear regression analysis. In the multivariate logistic regression analysis, serum FABP4 was the independent influencer of an AAC score ≥4. Conclusions Serum FABP4 is positively associated with the AAC score and is an independent marker of AAC in PD patients.
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Affiliation(s)
- Sijia Zhou
- Department of Nephrology, Peking University Third Hospital, Beijing, China
| | - Xiaoxiao Wang
- Research Center of Clinical Epidemiology, Peking University Third Hospital, Beijing, China
| | - Junbao Shi
- Department of Nephrology, Peking University Third Hospital, Beijing, China
| | - Qingfeng Han
- Department of Nephrology, Peking University Third Hospital, Beijing, China
| | - Lian He
- Department of Nephrology, Peking University Third Hospital, Beijing, China
| | - Wen Tang
- Department of Nephrology, Peking University Third Hospital, Beijing, China
| | - Aihua Zhang
- Department of Nephrology, Xuanwu Hospital Capital Medical University, Beijing, China
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22
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Wang S, Liu J, Zhao W, Wang G, Gao S. Selection of candidate genes for differences in fat metabolism between cattle subcutaneous and perirenal adipose tissue based on RNA-seq. Anim Biotechnol 2021:1-12. [PMID: 34693889 DOI: 10.1080/10495398.2021.1991937] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
The site of fat deposition plays an important role in meat quality and body health. Biologically, the perirenal visceral fat (PF) and back subcutaneous fat (BF) are distinct. Angus and Simmental cattle (Bos taurus) were used as models. HE staining, triglyceride assay kit and RNA-seq were used to analyze the differences in tissue morphology and lipid accumulation, co-genes, and differentially expressed genes (DEGs) between the two tissues. According to the findings, BF has a smaller cell area and greater lipid deposition ability than PF. RNA-seq generated approximately 10.99 Gb of data in each library, and 23,472 genes were identified. The genes FABP4, ADIRF, and SCD that are related to adipose deposition were highly expressed in four tissues. There were 1678 DEGs and 1955 DEGs between BF and PF in Angus and Simmental cattle respectively. Gene Ontology function analysis identified several DEGs involved in metabolism. KEGG pathway analysis showed that four pathways related to fat metabolism were enriched. In the BF, seven genes (COL1A1, COL1A2, COL3A1, COL2A1, RXRA, C1QTNF7, and MOGAT2) were up-regulated. Five genes (ADRB3, ABHD5, CPT1B, CD36, LPIN1) were down-regulated. This study identified candidate genes that led to differences in fat metabolism, which could be useful in cattle breeding.
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Affiliation(s)
- Siyuan Wang
- College of Animal Science and Technology, Inner Mongolia University for Nationalities, Tongliao, Inner Mongolia Autonomous Region, China
| | - Jie Liu
- Domestic Fowls Research Institute, Shandong Academy of Agricultural Sciences, Jinan, Shandong, China
| | - Weiming Zhao
- College of Animal Science and Technology, Inner Mongolia University for Nationalities, Tongliao, Inner Mongolia Autonomous Region, China
| | - Guofu Wang
- College of Animal Science and Technology, Inner Mongolia University for Nationalities, Tongliao, Inner Mongolia Autonomous Region, China
| | - Shuxin Gao
- College of Animal Science and Technology, Inner Mongolia University for Nationalities, Tongliao, Inner Mongolia Autonomous Region, China
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23
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Pei Y, Parks JS, Kang HW. Quercetin alleviates high-fat diet-induced inflammation in brown adipose tissue. J Funct Foods 2021. [DOI: 10.1016/j.jff.2021.104614] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
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Effect of Eicosapentaenoic Acid Supplementation on Murine Preadipocytes 3T3-L1 Cells Activated with Lipopolysaccharide and/or Tumor Necrosis Factor-α. Life (Basel) 2021; 11:life11090977. [PMID: 34575127 PMCID: PMC8472223 DOI: 10.3390/life11090977] [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: 08/03/2021] [Revised: 09/09/2021] [Accepted: 09/14/2021] [Indexed: 11/16/2022] Open
Abstract
The beneficial effect of n-3 fatty acids can be related to anti-inflammatory properties. The aim of the study was to analyzed the effect of eicosapentaenoic acid (EPA) on 3T3-L1 cells (murine embryonic fibroblasts‒preadipocytes) activated with inflammatory factors (IF). Cells were incubated with 50 µmol of EPA for 48 h, and then activated with lipopolysaccharide (LPS) or tumor necrosis factor-α (TNF-α). The level of cycloxygenase-2 (Prostaglandin-Endoperoxide Synthase 2, PTGS2, COX-2), cytosolic prostaglandin synthase E2 (cPGES), fatty acid binding protein 4 (FABP4), toll-like receptor 4 (TLR4), glucose receptor type 4 (GLUT-4), and cannabinoid receptor 2 (CB2) was determined using Western blot analysis. The phospholipase A2 (Pla2g4a), and prostaglandin-Endoperoxide Synthase 2 (Ptgs2) gene expression was analyzed by real-time qPCR. After EPA and IF activation, a significant decrease in the COX-2, cPGES, and TRL4 protein levels was observed. Incubation of cells with EPA and IF resulted in a decrease in Ptgs2 and an increase in the Pla2g4a gene. A significant increase in the CB2 protein was observed in adipocytes co-treated with EPA and IF. The results indicated an anti-inflammatory properties of EPA. Interestingly, the activation of the GLUT4 receptor by EPA suggests an unique role of this FA in the regulation of the adipocyte metabolism and prevention of insulin resistance.
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25
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A-FABP in Metabolic Diseases and the Therapeutic Implications: An Update. Int J Mol Sci 2021; 22:ijms22179386. [PMID: 34502295 PMCID: PMC8456319 DOI: 10.3390/ijms22179386] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 08/27/2021] [Accepted: 08/27/2021] [Indexed: 12/11/2022] Open
Abstract
Adipocyte fatty acid-binding protein (A-FABP), which is also known as ap2 or FABP4, is a fatty acid chaperone that has been further defined as a fat-derived hormone. It regulates lipid homeostasis and is a key mediator of inflammation. Circulating levels of A-FABP are closely associated with metabolic syndrome and cardiometabolic diseases with imminent diagnostic and prognostic significance. Numerous animal studies have elucidated the potential underlying mechanisms involving A-FABP in these diseases. Recent studies demonstrated its physiological role in the regulation of adaptive thermogenesis and its pathological roles in ischemic stroke and liver fibrosis. Due to its implication in various diseases, A-FABP has become a promising target for the development of small molecule inhibitors and neutralizing antibodies for disease treatment. This review summarizes the clinical and animal findings of A-FABP in the pathogenesis of cardio-metabolic diseases in recent years. The underlying mechanism and its therapeutic implications are also highlighted.
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26
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Chen MT, Huang JS, Gao DD, Li YX, Wang HY. Combined treatment with FABP4 inhibitor ameliorates rosiglitazone-induced liver steatosis in obese diabetic db/db mice. Basic Clin Pharmacol Toxicol 2021; 129:173-182. [PMID: 34128319 DOI: 10.1111/bcpt.13621] [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: 03/04/2021] [Accepted: 06/06/2021] [Indexed: 11/28/2022]
Abstract
Rosiglitazone has been reported to exert dual effects on liver steatosis, and it could exacerbate liver steatosis in obese animal models, which was suggested to be closely related to the elevated hepatic expression of FABP4. This study aimed to investigate whether combined treatment with FABP4 inhibitor I-9 could alleviate rosiglitazone-induced liver steatosis in obese diabetic db/db mice. Male C57BL/KsJ-db/db mice were orally treated with rosiglitazone, rosiglitazone combined with I-9 daily for 8 weeks. The liver steatosis was evaluated by triglyceride content and H&E staining. The expression of hepatic lipogenic genes or proteins in liver tissue or in FFA-treated hepatocytes and PMA-stimulated macrophages were determined by real-time quantitative polymerase chain reaction (RT-qPCR) or western blotting. Results showed that combined treatment with I-9 decreased rosiglitazone-induced increase in serum FABP4 level and expression of lipogenic genes in liver, especially FABP4, and ameliorated liver steatosis in db/db mice. Rosiglitazone-induced intracellular TG accumulation and increased expression of FABP4 in the cultured hepatocytes and macrophages were also suppressed by combined treatment. We concluded that combined treatment with FABP4 inhibitor I-9 could ameliorate rosiglitazone-exacerbated elevated serum FABP4 level and ectopic liver fat accumulation in obese diabetic db/db mice without affecting its anti-diabetic efficacy.
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Affiliation(s)
- Meng-Ting Chen
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China.,School of Pharmacy, University of Chinese Academy of Sciences, Beijing, China
| | - Jun-Shang Huang
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China.,School of Pharmacy, University of Chinese Academy of Sciences, Beijing, China
| | - Ding-Ding Gao
- School of Pharmacy, Fudan University, Shanghai, China
| | - Ying-Xia Li
- School of Pharmacy, Fudan University, Shanghai, China
| | - He-Yao Wang
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China.,School of Pharmacy, University of Chinese Academy of Sciences, Beijing, China
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27
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Sanhueza S, Tobar N, Cifuentes M, Quenti D, Varì R, Scazzocchio B, Masella R, Herrera K, Paredes A, Morales G, Ormazabal P. Lampaya Medicinalis Phil. decreases lipid-induced triglyceride accumulation and proinflammatory markers in human hepatocytes and fat body of Drosophila melanogaster. Int J Obes (Lond) 2021; 45:1464-1475. [PMID: 33895783 DOI: 10.1038/s41366-021-00811-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2020] [Revised: 03/10/2021] [Accepted: 04/07/2021] [Indexed: 12/21/2022]
Abstract
BACKGROUND Excess hepatic triglyceride (TG) accumulation (steatosis) commonly observed in obesity, may lead to non-alcoholic fatty liver disease (NAFLD). Altered regulation of intracellular lipid droplets (LD) and TG metabolism, as well as activation of JNK-mediated proinflammatory pathways may trigger liver steatosis-related disorders. Drosophila melanogaster is an animal model used for studying obesity and its associated disorders. In Drosophila, lipids and glycogen are stored in the fat body (FB), which resembles mammalian adipose tissue and liver. Dietary oversupply leads to obesity-related disorders, which are characterized by FB dysfunction. Infusions of Lampaya medicinalis Phil. (Verbenaceae) are used in folk medicine of Chile to counteract inflammatory diseases. Hydroethanolic extract of lampaya (HEL) contains considerable amounts of flavonoids that may explain its anti-inflammatory effect. METHODS We studied whether HEL affects palmitic acid (PA, C16:0) and oleic acid (OA; C18:1)-induced TG accumulation and proinflammatory marker content in HepG2 hepatocytes as well as impaired lipid storage and proinflammatory molecule expression in Drosophila melanogaster fed a high-fat diet (HFD). RESULTS In HepG2 hepatocytes, exposure to OA/PA elevated TG content, FABP4, ATGL and DGAT2 expression, and the JNK proinflammatory pathway, as well as TNF-α and IL-6 production, while diminished FAS expression. These effects were prevented by HEL co-treatment. In Drosophila larvae fed a HFD, HEL prevented TG accumulation and downregulated proinflammatory JNK pathway activation. CONCLUSION HEL effect counteracting OA/PA- and HFD-induced lipid accumulation and proinflammatory marker expression in HepG2 hepatocytes and Drosophila larvae may represent a preventive approach against hepatic steatosis and inflammation, associated to obesity and NAFLD.
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Affiliation(s)
- Sofía Sanhueza
- Institute of Health Sciences, Universidad de O'Higgins, Av. Libertador Bernardo O'Higgins 611, 2820000, Rancagua, Chile.,Laboratory of Obesity and Metabolism in Geriatrics and Adults (OMEGA), Institute of Nutrition and Food Technology (INTA), Universidad de Chile, Av. El Líbano 5524, 7830490, Macul, Santiago, Chile
| | - Nicolás Tobar
- Cellular and Molecular Biology Laboratory, Institute of Nutrition and Food Technology (INTA), Universidad de Chile, Av. El Líbano 5524, 7830490, Macul, Santiago, Chile
| | - Mariana Cifuentes
- Laboratory of Obesity and Metabolism in Geriatrics and Adults (OMEGA), Institute of Nutrition and Food Technology (INTA), Universidad de Chile, Av. El Líbano 5524, 7830490, Macul, Santiago, Chile
| | - Daniela Quenti
- Cellular and Molecular Biology Laboratory, Institute of Nutrition and Food Technology (INTA), Universidad de Chile, Av. El Líbano 5524, 7830490, Macul, Santiago, Chile
| | - Rosaria Varì
- Center for Gender-Specific Medicine, Italian National Institute of Health, Viale Regina Elena 299, 00161, Rome, Italy
| | - Beatrice Scazzocchio
- Center for Gender-Specific Medicine, Italian National Institute of Health, Viale Regina Elena 299, 00161, Rome, Italy
| | - Roberta Masella
- Center for Gender-Specific Medicine, Italian National Institute of Health, Viale Regina Elena 299, 00161, Rome, Italy
| | - Karin Herrera
- Institute of Health Sciences, Universidad de O'Higgins, Av. Libertador Bernardo O'Higgins 611, 2820000, Rancagua, Chile.,Laboratory of Obesity and Metabolism in Geriatrics and Adults (OMEGA), Institute of Nutrition and Food Technology (INTA), Universidad de Chile, Av. El Líbano 5524, 7830490, Macul, Santiago, Chile
| | - Adrián Paredes
- Laboratorio de Química Biológica, Instituto Antofagasta (IA) and Departamento de Química, Facultad de Ciencias Básicas, Universidad de Antofagasta, Av. Angamos 601, 1240000, Antofagasta, Chile
| | - Glauco Morales
- Laboratorio de Química Biológica, Instituto Antofagasta (IA) and Departamento de Química, Facultad de Ciencias Básicas, Universidad de Antofagasta, Av. Angamos 601, 1240000, Antofagasta, Chile
| | - Paulina Ormazabal
- Institute of Health Sciences, Universidad de O'Higgins, Av. Libertador Bernardo O'Higgins 611, 2820000, Rancagua, Chile. .,Laboratory of Obesity and Metabolism in Geriatrics and Adults (OMEGA), Institute of Nutrition and Food Technology (INTA), Universidad de Chile, Av. El Líbano 5524, 7830490, Macul, Santiago, Chile.
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28
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Lee CH, Lui DTW, Lam KSL. Adipocyte Fatty Acid-Binding Protein, Cardiovascular Diseases and Mortality. Front Immunol 2021; 12:589206. [PMID: 33815359 PMCID: PMC8017191 DOI: 10.3389/fimmu.2021.589206] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Accepted: 03/04/2021] [Indexed: 12/21/2022] Open
Abstract
It has been increasingly recognized that inflammation plays an important role in the pathogenesis of cardiovascular disease (CVD). In obesity, adipose tissue inflammation, especially in the visceral fat depots, contributes to systemic inflammation and promotes the development of atherosclerosis. Adipocyte fatty acid-binding protein (AFABP), a lipid chaperone abundantly secreted from the adipocytes and macrophages, is one of the key players mediating this adipose-vascular cross-talk, in part via its interaction with c-Jun NH2-terminal kinase (JNK) and activator protein-1 (AP-1) to form a positive feedback loop, and perpetuate inflammatory responses. In mice, selective JNK inactivation in the adipose tissue significantly reduced the expression of AFABP in their adipose tissue, as well as circulating AFABP levels. Importantly, fat transplant experiments showed that adipose-specific JNK inactivation in the visceral fat was sufficient to protect mice with apoE deficiency from atherosclerosis, with the beneficial effects attenuated by the continuous infusion of recombinant AFABP, supporting the role of AFABP as the link between visceral fat inflammation and atherosclerosis. In humans, raised circulating AFABP levels are associated with incident metabolic syndrome, type 2 diabetes and CVD, as well as non-alcoholic steatohepatitis, diabetic nephropathy and adverse renal outcomes, all being conditions closely related to inflammation and enhanced CV mortality. Collectively, these clinical data have provided support to AFABP as an important adipokine linking obesity, inflammation and CVD. This review will discuss recent findings on the role of AFABP in CVD and mortality, the possible underlying mechanisms, and pharmacological inhibition of AFABP as a potential strategy to combat CVD.
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Affiliation(s)
- Chi-Ho Lee
- Department of Medicine, University of Hong Kong, Hong Kong, Hong Kong.,State Key Laboratory of Pharmaceutical Biotechnology, University of Hong Kong, Hong Kong, Hong Kong
| | - David T W Lui
- Department of Medicine, University of Hong Kong, Hong Kong, Hong Kong
| | - Karen S L Lam
- Department of Medicine, University of Hong Kong, Hong Kong, Hong Kong.,State Key Laboratory of Pharmaceutical Biotechnology, University of Hong Kong, Hong Kong, Hong Kong
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29
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Reguero M, Gómez de Cedrón M, Reglero G, Quintela JC, Ramírez de Molina A. Natural Extracts to Augment Energy Expenditure as a Complementary Approach to Tackle Obesity and Associated Metabolic Alterations. Biomolecules 2021; 11:biom11030412. [PMID: 33802173 PMCID: PMC7999034 DOI: 10.3390/biom11030412] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 03/03/2021] [Accepted: 03/08/2021] [Indexed: 12/12/2022] Open
Abstract
Obesity is the epidemic of the 21st century. In developing countries, the prevalence of obesity continues to rise, and obesity is occurring at younger ages. Obesity and associated metabolic stress disrupt the whole-body physiology. Adipocytes are critical components of the systemic metabolic control, functioning as an endocrine organ. The enlarged adipocytes during obesity recruit macrophages promoting chronic inflammation and insulin resistance. Together with the genetic susceptibility (single nucleotide polymorphisms, SNP) and metabolic alterations at the molecular level, it has been highlighted that key modifiable risk factors, such as those related to lifestyle, contribute to the development of obesity. In this scenario, urgent therapeutic options are needed, including not only pharmacotherapy but also nutrients, bioactive compounds, and natural extracts to reverse the metabolic alterations associated with obesity. Herein, we first summarize the main targetable processes to tackle obesity, including activation of thermogenesis in brown adipose tissue (BAT) and in white adipose tissue (WAT-browning), and the promotion of energy expenditure and/or fatty acid oxidation (FAO) in muscles. Then, we perform a screening of 20 natural extracts (EFSA approved) to determine their potential in the activation of FAO and/or thermogenesis, as well as the increase in respiratory capacity. By means of innovative technologies, such as the study of their effects on cell bioenergetics (Seahorse bioanalyzer), we end up with the selection of four extracts with potential application to ameliorate the deleterious effects of obesity and the chronic associated inflammation.
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Affiliation(s)
- Marina Reguero
- Molecular Oncology Group, Precision Nutrition and Health, IMDEA Food Institute, CEI UAM + CSIC, Ctra. de Cantoblanco 8, 28049 Madrid, Spain;
- NATAC BIOTECH, Electronica 7, 28923 Madrid, Spain;
| | - Marta Gómez de Cedrón
- Molecular Oncology Group, Precision Nutrition and Health, IMDEA Food Institute, CEI UAM + CSIC, Ctra. de Cantoblanco 8, 28049 Madrid, Spain;
- Correspondence: (M.G.d.C.); (A.R.d.M.)
| | - Guillermo Reglero
- Production and Characterization of Novel Foods Department, Institute of Food Science Research CIAL, CEI UAM + CSIC, 28049 Madrid, Spain;
| | | | - Ana Ramírez de Molina
- Molecular Oncology Group, Precision Nutrition and Health, IMDEA Food Institute, CEI UAM + CSIC, Ctra. de Cantoblanco 8, 28049 Madrid, Spain;
- Correspondence: (M.G.d.C.); (A.R.d.M.)
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Dai H, Wang F, Kang Y, Sun J, Zhou H, Gao Q, Li Z, Qian P, Zhu G, Zhou Y. Adrenomedullin Attenuates Inflammation in White Adipose Tissue of Obese Rats Through Receptor-Mediated PKA Pathway. Obesity (Silver Spring) 2021; 29:86-97. [PMID: 32985779 PMCID: PMC7821304 DOI: 10.1002/oby.23012] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2020] [Revised: 08/04/2020] [Accepted: 08/05/2020] [Indexed: 12/13/2022]
Abstract
OBJECTIVE Adrenomedullin (ADM) possesses therapeutic potential for inflammatory diseases. Consequently, the effects of ADM on inflammation in visceral white adipose tissue (vWAT) of obese rats or in adipocytes were explored in this study. METHODS Male rats were fed a high-fat diet for 12 weeks to induce obesity, and obese rats were implanted with osmotic minipumps providing constant infusion of ADM (300 ng/kg per hour) and continued to be fed a high-fat diet for 4 weeks. RESULTS When compared with the control group, endogenous protein expression of ADM and ADM receptors in vWAT and in lipopolysaccharide (LPS)-treated adipocytes was markedly increased. ADM significantly decreased the protein expression of the inflammatory mediators TNFα, IL-1β, cyclooxygenase-2, and inducible nitric oxide synthase in vWAT of obese rats and in adipocytes stimulated by LPS. It also inhibited the activation of the inflammatory signaling pathways MAPK and NF-κB induced by LPS in adipocytes. These effects of ADM in adipocytes were inhibited by the administration of ADM receptor antagonist and cAMP-dependent protein kinase (PKA) activation inhibitor. CONCLUSIONS ADM can inhibit inflammation in WAT in obesity, which may be mediated by the activation of ADM receptors and PKA.
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Affiliation(s)
- Hang‐Bing Dai
- Department of PhysiologyNanjing Medical UniversityNanjingChina
| | - Fang‐Zheng Wang
- Department of PhysiologyNanjing Medical UniversityNanjingChina
| | - Ying Kang
- Department of PhysiologyNanjing Medical UniversityNanjingChina
| | - Jing Sun
- Department of PhysiologyNanjing Medical UniversityNanjingChina
| | - Hong Zhou
- Department of PhysiologyNanjing Medical UniversityNanjingChina
| | - Qing Gao
- Department of PhysiologyNanjing Medical UniversityNanjingChina
| | - Zhen‐Zhen Li
- Department of CardiologyBenQ Medical CenterThe Affiliated Hospital of Nanjing Medical UniversityNanjingJiangsuChina
| | - Pei Qian
- Department of PhysiologyNanjing Medical UniversityNanjingChina
| | - Guo‐Qing Zhu
- Department of PhysiologyNanjing Medical UniversityNanjingChina
| | - Ye‐Bo Zhou
- Department of PhysiologyNanjing Medical UniversityNanjingChina
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Kawai T, Autieri MV, Scalia R. Adipose tissue inflammation and metabolic dysfunction in obesity. Am J Physiol Cell Physiol 2020; 320:C375-C391. [PMID: 33356944 DOI: 10.1152/ajpcell.00379.2020] [Citation(s) in RCA: 519] [Impact Index Per Article: 129.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Several lines of preclinical and clinical research have confirmed that chronic low-grade inflammation of adipose tissue is mechanistically linked to metabolic disease and organ tissue complications in the overweight and obese organism. Despite this widely confirmed paradigm, numerous open questions and knowledge gaps remain to be investigated. This is mainly due to the intricately intertwined cross-talk of various pro- and anti-inflammatory signaling cascades involved in the immune response of expanding adipose depots, particularly the visceral adipose tissue. Adipose tissue inflammation is initiated and sustained over time by dysfunctional adipocytes that secrete inflammatory adipokines and by infiltration of bone marrow-derived immune cells that signal via production of cytokines and chemokines. Despite its low-grade nature, adipose tissue inflammation negatively impacts remote organ function, a phenomenon that is considered causative of the complications of obesity. The aim of this review is to broadly present an overview of adipose tissue inflammation by highlighting the most recent reports in the scientific literature and summarizing our overall understanding of the field. We also discuss key endogenous anti-inflammatory mediators and analyze their mechanistic role(s) in the pathogenesis and treatment of adipose tissue inflammation. In doing so, we hope to stimulate studies to uncover novel physiological, cellular, and molecular targets for the treatment of obesity.
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Affiliation(s)
- Tatsuo Kawai
- The Cardiovascular Research Center and The Limole Center for Integrated Lymphatic Research, Lewis Katz School of Medicine, Temple University, Philadelphia, Pennsylvania
| | - Michael V Autieri
- The Cardiovascular Research Center and The Limole Center for Integrated Lymphatic Research, Lewis Katz School of Medicine, Temple University, Philadelphia, Pennsylvania
| | - Rosario Scalia
- The Cardiovascular Research Center and The Limole Center for Integrated Lymphatic Research, Lewis Katz School of Medicine, Temple University, Philadelphia, Pennsylvania
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Dalmasso C, Chade AR, Mendez M, Giani JF, Bix GJ, Chen KC, Loria AS. Intrarenal Renin Angiotensin System Imbalance During Postnatal Life Is Associated With Increased Microvascular Density in the Mature Kidney. Front Physiol 2020; 11:1046. [PMID: 32982785 PMCID: PMC7491414 DOI: 10.3389/fphys.2020.01046] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Accepted: 07/30/2020] [Indexed: 12/17/2022] Open
Abstract
Environmental stress during early life is an important factor that affects the postnatal renal development. We have previously shown that male rats exposed to maternal separation (MatSep), a model of early life stress, are normotensive but display a sex-specific reduced renal function and exacerbated angiotensin II (AngII)-mediated vascular responses as adults. Since optimal AngII levels during postnatal life are required for normal maturation of the kidney, this study was designed to investigate both short- and long-term effect of MatSep on (1) the renal vascular architecture and function, (2) the intrarenal renin-angiotensin system (RAS) components status, and (3) the genome-wide expression of genes in isolated renal vasculature. Renal tissue and plasma were collected from male rats at different postnatal days (P) for intrarenal RAS components mRNA and protein expression measurements at P2, 6, 10, 14, 21, and 90 and microCT analysis at P21 and 90. Although with similar body weight and renal mass trajectories from P2 to P90, MatSep rats displayed decreased renal filtration capacity at P90, while increased microvascular density at both P21 and P90 (p < 0.05). MatSep increased renal expression of renin, and angiotensin type 1 (AT1) and type 2 (AT2) receptors (p < 0.05), but reduced ACE2 mRNA expression and activity from P2-14 compared to controls. However, intrarenal levels of AngII peptide were reduced (p < 0.05) possible due to the increased degradation to AngIII by aminopeptidase A. In isolated renal vasculature from neonates, Enriched Biological Pathways functional clusters (EBPfc) from genes changed by MatSep reported to modulate extracellular structure organization, inflammation, and pro-angiogenic transcription factors. Our data suggest that male neonates exposed to MatSep could display permanent changes in the renal microvascular architecture in response to intrarenal RAS imbalance in the context of the atypical upregulation of angiogenic factors.
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Affiliation(s)
- Carolina Dalmasso
- Department of Pharmacology and Nutritional Sciences, University of Kentucky, Lexington, KY, United States
| | - Alejandro R. Chade
- Department of Physiology and Biophysics, Medicine, and Radiology, University of Mississippi Medical Center, Jackson, MS, United States
| | - Mariela Mendez
- Department of Internal Medicine, Hypertension and Vascular Research Division, Henry Ford Hospital, Detroit, MI, United States
| | - Jorge F. Giani
- Departments of Biomedical Sciences and Pathology, Cedars-Sinai Medical Center, Los Angeles, CA, United States
| | - Gregory J. Bix
- Clinical Neuroscience Research Center, Tulane University, New Orleans, LA, United States
| | - Kuey C. Chen
- Department of Pharmacology and Nutritional Sciences, University of Kentucky, Lexington, KY, United States
| | - Analia S. Loria
- Department of Pharmacology and Nutritional Sciences, University of Kentucky, Lexington, KY, United States
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