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Eroglu B, Isales C, Eroglu A. Age and duration of obesity modulate the inflammatory response and expression of neuroprotective factors in mammalian female brain. Aging Cell 2024:e14313. [PMID: 39230054 DOI: 10.1111/acel.14313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Revised: 07/09/2024] [Accepted: 07/27/2024] [Indexed: 09/05/2024] Open
Abstract
Obesity has become a global epidemic and is associated with comorbidities, including diabetes, cardiovascular, and neurodegenerative diseases, among others. While appreciable insight has been gained into the mechanisms of obesity-associated comorbidities, effects of age, and duration of obesity on the female brain remain obscure. To address this gap, adolescent and mature adult female mice were subjected to a high-fat diet (HFD) for 13 or 26 weeks, whereas age-matched controls were fed a standard diet. Subsequently, the expression of inflammatory cytokines, neurotrophic/neuroprotective factors, and markers of microgliosis and astrogliosis were analyzed in the hypothalamus, hippocampus, and cerebral cortex, along with inflammation in visceral adipose tissue. HFD led to a typical obese phenotype in all groups independent of age and duration of HFD. However, the intermediate duration of obesity induced a limited inflammatory response in adolescent females' hypothalamus while the hippocampus, cerebral cortex, and visceral adipose tissue remained unaffected. In contrast, the prolonged duration of obesity resulted in inflammation in all three brain regions and visceral adipose tissue along with upregulation of microgliosis/astrogliosis and suppression of neurotrophic/neuroprotective factors in all brain regions, denoting the duration of obesity as a critical risk factor for neurodegenerative diseases. Importantly, when female mice were older (i.e., mature adult), even the intermediate duration of obesity induced similar adverse effects in all brain regions. Taken together, our findings suggest that (1) both age and duration of obesity have a significant impact on obesity-associated comorbidities and (2) early interventions to end obesity are critical to preserving brain health.
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Affiliation(s)
- Binnur Eroglu
- Department of Neuroscience and Regenerative Medicine, Medical College of Georgia, Augusta University, Augusta, Georgia, USA
| | - Carlos Isales
- Department of Neuroscience and Regenerative Medicine, Medical College of Georgia, Augusta University, Augusta, Georgia, USA
- Department of Medicine, Medical College of Georgia, Augusta University, Augusta, Georgia, USA
| | - Ali Eroglu
- Department of Neuroscience and Regenerative Medicine, Medical College of Georgia, Augusta University, Augusta, Georgia, USA
- Department of Obstetrics and Gynecology, Medical College of Georgia, Augusta University, Augusta, Georgia, USA
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2
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Tesfamariam B. Impact of Perivascular Adipose Tissue on Neointimal Formation Following Endovascular Placement. J Cardiovasc Transl Res 2024; 17:851-858. [PMID: 38409474 DOI: 10.1007/s12265-024-10502-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Accepted: 02/19/2024] [Indexed: 02/28/2024]
Abstract
Following the placement of endovascular implants, perivascular adipose tissue (PVAT) becomes an early sensor of vascular injury to which it responds by undergoing phenotypic changes characterized by reduction in the secretion of adipocyte-derived relaxing factors and a shift to a proinflammatory and pro-contractile state. Thus, activated PVAT loses its anti-inflammatory function, secretes proinflammatory cytokines and chemokines, and generates reactive oxygen species, which are accompanied by differentiation of fibroblasts into myofibroblasts and proliferation of smooth muscle cells. These subsequently migrate into the intima, leading to intimal growth. In addition, periadventitial vasa vasorum undergoes neovascularization and functions as a portal for extravasation of inflammatory infiltrates and mobilization of PVAT resident stem/progenitor cells into the intima. This review focuses on the response of PVAT to endovascular intervention-induced injury and discusses potential therapeutic targets to suppress the PVAT-initiated pathways that mediate the formation of neointima.
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Affiliation(s)
- Belay Tesfamariam
- Division of Pharmacology and Toxicology, Center for Drug Evaluation and Research, 10903 New Hampshire Ave., Bldg. 22, Rm. 4178, Silver Spring, MD, USA.
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Wang R, Ding A, Wang J, Wang J, Zhou Y, Chen M, Ju S, Tan M, Xiang Z. Astragalin from Thesium chinense: A Novel Anti-Aging and Antioxidant Agent Targeting IGFR/CD38/ Sirtuins. Antioxidants (Basel) 2024; 13:859. [PMID: 39061927 PMCID: PMC11273813 DOI: 10.3390/antiox13070859] [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: 06/19/2024] [Revised: 07/13/2024] [Accepted: 07/16/2024] [Indexed: 07/28/2024] Open
Abstract
Astragalin (AG), a typical flavonoid found in Thesium chinense Turcz (T. chinense), is abundant in various edible plants and possesses high nutritional value, as well as antioxidant and antibacterial effects. In this study, we initially predicted the mechanism of action of AG with two anti-aging and antioxidant-related protein targets (CD38 and IGFR) by molecular docking and molecular dynamics simulation techniques. Subsequently, we examined the anti-aging effects of AG in Caenorhabditis elegans (C. elegans), the antioxidant effects in zebrafish, and verified the related molecular mechanisms. In C. elegans, AG synergistically extended the lifespan of C. elegans by up-regulating the expression of daf-16 through inhibiting the expression of daf-2/IGFR and also activating the AMPK and MAPK pathways to up-regulate the expression of sir-2.1, sir-2.4, and skn-1. In oxidatively damaged zebrafish embryos, AG demonstrated a synergistic effect in augmenting the resistance of zebrafish embryos to oxidative stress by up-regulating the expression levels of SIRT1 and SIRT6 within the zebrafish embryos system via the suppression of CD38 enzymatic activity and then inhibiting the expression of IGFR through high levels of SIRT6. These findings highlight the antioxidant and anti-aging properties of AG and indicate its potential application as a supplementary ingredient in aquaculture for enhancing fish health and growth.
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Affiliation(s)
- Ruifeng Wang
- College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China; (R.W.); (A.D.); (Y.Z.); (M.C.); (S.J.)
| | - Anping Ding
- College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China; (R.W.); (A.D.); (Y.Z.); (M.C.); (S.J.)
| | - Jiaye Wang
- College of Pharmacy, Nanjing Medical University, Nanjing 211166, China;
| | - Jiaxue Wang
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China;
| | - Yujie Zhou
- College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China; (R.W.); (A.D.); (Y.Z.); (M.C.); (S.J.)
| | - Miao Chen
- College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China; (R.W.); (A.D.); (Y.Z.); (M.C.); (S.J.)
| | - Shuang Ju
- College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China; (R.W.); (A.D.); (Y.Z.); (M.C.); (S.J.)
| | - Mingpu Tan
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China;
| | - Zengxu Xiang
- College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China; (R.W.); (A.D.); (Y.Z.); (M.C.); (S.J.)
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4
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Chen X, Song H, Song K, Zhang Y, Wang J, Hong J, Xie Q, Zhao J, Liu M, Wang X. Temperature-sensitive hydrogel releasing pectolinarin facilitate scarless wound healing. J Cell Mol Med 2024; 28:e18130. [PMID: 38332511 PMCID: PMC10853586 DOI: 10.1111/jcmm.18130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 11/28/2023] [Accepted: 12/27/2023] [Indexed: 02/10/2024] Open
Abstract
The dressing that promotes scarless healing is essential for both normal function and aesthetics after a wound. With a deeper understanding of the mechanisms involved in scar formation during the wound healing process, the ideal dressing becomes clearer and more promising. For instance, the yes-associated transcriptional regulator (YAP) has been extensively studied as a key gene involved in regulating scar formation. However, there has been limited attention given to pectolinarin, a natural flavonoid that may exhibit strong binding affinity to YAP, in the context of scarless healing. In this study, we successfully developed a temperature-sensitive Pluronic@F-127 hydrogel as a platform for delivering pectolinarin to promote scarless wound healing. The bioactive pectolinarin was released from the hydrogel, effectively enhancing endothelial cell migration, proliferation and the expression of angiogenesis-related genes. Additionally, a concentration of 20 μg/mL of pectolinarin demonstrated remarkable antioxidant ability, capable of counteracting the detrimental effects of reactive oxygen species (ROS). Our results from rat wound healing models demonstrated that the hydrogel accelerated wound healing, promoting re-epithelialization and facilitating skin appendage regeneration. Furthermore, we discovered that a concentration of 50 μg/mL of pectolinarin incorporated to the hydrogel exhibited the most favourable outcomes in terms of promoting wound healing and minimizing scar formation. Overall, our study highlights that the significant potential of locally released pectolinarin might substantially inhibit YAP and promoting scarless wound healing.
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Affiliation(s)
- Xiaohang Chen
- Shanxi Medical University School and Hospital of StomatologyTaiyuanChina
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New MaterialsTaiyuanChina
| | - Haoyue Song
- Shanxi Medical University School and Hospital of StomatologyTaiyuanChina
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New MaterialsTaiyuanChina
| | - Kun Song
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital, Laboratory of Facial Plastic and ReconstructionFujian Medical UniversityFuzhouChina
| | - Yuan Zhang
- Shanxi Medical University School and Hospital of StomatologyTaiyuanChina
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New MaterialsTaiyuanChina
| | - Jia Wang
- Shanxi Medical University School and Hospital of StomatologyTaiyuanChina
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New MaterialsTaiyuanChina
| | - Jinjia Hong
- Shanxi Medical University School and Hospital of StomatologyTaiyuanChina
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New MaterialsTaiyuanChina
| | - Qingpeng Xie
- Shanxi Medical University School and Hospital of StomatologyTaiyuanChina
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New MaterialsTaiyuanChina
| | - Jing Zhao
- Shanxi Medical University School and Hospital of StomatologyTaiyuanChina
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New MaterialsTaiyuanChina
| | - Meixian Liu
- Shanxi Medical University School and Hospital of StomatologyTaiyuanChina
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New MaterialsTaiyuanChina
| | - Xing Wang
- Shanxi Medical University School and Hospital of StomatologyTaiyuanChina
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New MaterialsTaiyuanChina
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Bettiol A, Urban ML, Emmi G, Galora S, Argento FR, Fini E, Borghi S, Bagni G, Mattioli I, Prisco D, Fiorillo C, Becatti M. SIRT1 and thrombosis. Front Mol Biosci 2024; 10:1325002. [PMID: 38304233 PMCID: PMC10833004 DOI: 10.3389/fmolb.2023.1325002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Accepted: 12/29/2023] [Indexed: 02/03/2024] Open
Abstract
Thrombosis is a major cause of morbidity and mortality worldwide, with a complex and multifactorial pathogenesis. Recent studies have shown that SIRT1, a member of the sirtuin family of NAD + -dependent deacetylases, plays a crucial role in regulating thrombosis, modulating key pathways including endothelial activation, platelet aggregation, and coagulation. Furthermore, SIRT1 displays anti-inflammatory activity both in vitro, in vivo and in clinical studies, particularly via the reduction of oxidative stress. On these bases, several studies have investigated the therapeutic potential of targeting SIRT1 for the prevention of thrombosis. This review provides a comprehensive and critical overview of the main preclinical and clinical studies and of the current understanding of the role of SIRT1 in thrombosis.
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Affiliation(s)
- Alessandra Bettiol
- Department of Experimental and Clinical Medicine, University of Firenze, Firenze, Italy
| | - Maria Letizia Urban
- Department of Experimental and Clinical Medicine, University of Firenze, Firenze, Italy
| | - Giacomo Emmi
- Department of Experimental and Clinical Medicine, University of Firenze, Firenze, Italy
| | - Silvia Galora
- Department of Experimental and Clinical Biomedical Sciences “Mario Serio”, University of Firenze, Firenze, Italy
| | - Flavia Rita Argento
- Department of Experimental and Clinical Biomedical Sciences “Mario Serio”, University of Firenze, Firenze, Italy
| | - Eleonora Fini
- Department of Experimental and Clinical Biomedical Sciences “Mario Serio”, University of Firenze, Firenze, Italy
| | - Serena Borghi
- Department of Experimental and Clinical Biomedical Sciences “Mario Serio”, University of Firenze, Firenze, Italy
| | - Giacomo Bagni
- Department of Experimental and Clinical Medicine, University of Firenze, Firenze, Italy
| | - Irene Mattioli
- Department of Experimental and Clinical Medicine, University of Firenze, Firenze, Italy
| | - Domenico Prisco
- Department of Experimental and Clinical Medicine, University of Firenze, Firenze, Italy
| | - Claudia Fiorillo
- Department of Experimental and Clinical Biomedical Sciences “Mario Serio”, University of Firenze, Firenze, Italy
| | - Matteo Becatti
- Department of Experimental and Clinical Biomedical Sciences “Mario Serio”, University of Firenze, Firenze, Italy
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Endothelial Nitric Oxide Synthase in the Perivascular Adipose Tissue. Biomedicines 2022; 10:biomedicines10071754. [PMID: 35885059 PMCID: PMC9313312 DOI: 10.3390/biomedicines10071754] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 07/18/2022] [Accepted: 07/18/2022] [Indexed: 01/08/2023] Open
Abstract
Perivascular adipose tissue (PVAT) is a special type of ectopic fat depot that adheres to most vasculatures. PVAT has been shown to exert anticontractile effects on the blood vessels and confers protective effects against metabolic and cardiovascular diseases. PVAT plays a critical role in vascular homeostasis via secreting adipokine, hormones, and growth factors. Endothelial nitric oxide synthase (eNOS; also known as NOS3 or NOSIII) is well-known for its role in the generation of vasoprotective nitric oxide (NO). eNOS is primarily expressed, but not exclusively, in endothelial cells, while recent studies have identified its expression in both adipocytes and endothelial cells of PVAT. PVAT eNOS is an important player in the protective role of PVAT. Different studies have demonstrated that, under obesity-linked metabolic diseases, PVAT eNOS may be even more important than endothelium eNOS in obesity-induced vascular dysfunction, which may be attributed to certain PVAT eNOS-specific functions. In this review, we summarized the current understanding of eNOS expression in PVAT, its function under both physiological and pathological conditions and listed out a few pharmacological interventions of interest that target eNOS in PVAT.
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Shi XD, Zhang JX, Hu XD, Zhuang T, Lu N, Ruan CC. Leonurine Attenuates Obesity-Related Vascular Dysfunction and Inflammation. Antioxidants (Basel) 2022; 11:antiox11071338. [PMID: 35883829 PMCID: PMC9311755 DOI: 10.3390/antiox11071338] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2022] [Revised: 06/30/2022] [Accepted: 07/02/2022] [Indexed: 02/05/2023] Open
Abstract
Oxidative stress in adipose tissue is a crucial pathogenic mechanism of obesity-associated cardiovascular diseases. Chronic low-grade inflammation caused by obesity increases ROS production and dysregulation of adipocytokines. Leonurine (LEO) is an active alkaloid extracted from Herba Leonuri and plays a protective role in the cardiovascular system. The present study tested whether LEO alleviates inflammation and oxidative stress, and improves vascular function in an obese mouse model. Here, we found that obesity leads to inflammation and oxidative stress in epididymal white adipose tissue (EWAT), as well as vascular dysfunction. LEO significantly improved inflammation and oxidative stress both in vivo and in vitro. Obesity-induced vascular dysfunction was also improved by LEO as evidenced by the ameliorated vascular tone and decreased mesenteric artery fibrosis. Using mass spectrometry, we identified YTHDF1 as the direct target of LEO. Taken together, we demonstrated that LEO improves oxidative stress and vascular remodeling induced by obesity and targets YTHDF1, raising the possibility of LEO treating other obesity-related metabolic syndromes.
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Affiliation(s)
- Xiao-Dong Shi
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fudan University, Shanghai 200032, China; (X.-D.S.); (X.-D.H.); (T.Z.)
| | - Jia-Xin Zhang
- Department of Clinical Medicine, Shanghai Medical College, Fudan University, Shanghai 200032, China;
| | - Xi-De Hu
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fudan University, Shanghai 200032, China; (X.-D.S.); (X.-D.H.); (T.Z.)
| | - Tao Zhuang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fudan University, Shanghai 200032, China; (X.-D.S.); (X.-D.H.); (T.Z.)
| | - Ning Lu
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fudan University, Shanghai 200032, China; (X.-D.S.); (X.-D.H.); (T.Z.)
- Correspondence: (N.L.); (C.-C.R.)
| | - Cheng-Chao Ruan
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fudan University, Shanghai 200032, China; (X.-D.S.); (X.-D.H.); (T.Z.)
- Correspondence: (N.L.); (C.-C.R.)
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Zhou C, Tan Y, Xu B, Wang Y, Cheang WS. 3,4′,5-Trimethoxy-trans-stilbene Alleviates Endothelial Dysfunction in Diabetic and Obese Mice via Activation of the AMPK/SIRT1/eNOS Pathway. Antioxidants (Basel) 2022; 11:antiox11071286. [PMID: 35883777 PMCID: PMC9311592 DOI: 10.3390/antiox11071286] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 06/23/2022] [Accepted: 06/26/2022] [Indexed: 12/04/2022] Open
Abstract
3,4′,5-trimethoxy-trans-stilbene (TMS) is a methoxylated derivative of resveratrol. Previous studies showed the vaso-protective effects of resveratrol; nevertheless, research on this derivative is scarce. The current study aimed to explore whether TMS can alleviate endothelial dysfunction in diabetic and obese mice, along with the underlying mechanisms. Thoracic aortas isolated from male C57BL/6J mice and primary cultures of rat aortic endothelial cells were treated with high glucose with or without TMS. High glucose exposure impaired acetylcholine-induced endothelium-dependent relaxations, down-regulated NO bioavailability and the AMP-activated protein kinase (AMPK)/Sirtuin 1 (SIRT1)/endothelial nitric oxide synthase (eNOS) pathway, increased endoplasmic reticulum (ER) stress and oxidative stress, which were reversed by TMS treatment. Moreover, the protective effects of TMS were abolished by Compound C (AMPK inhibitor), and EX527 (SIRT1 inhibitor). The mice were fed with high-fat diet (60% kcal% fat) for 14 weeks to establish a diabetic and obese model, and were orally administered TMS (10 mg/kg/day) in the last 4 weeks. Chronic TMS treatment alleviated endothelial dysfunction via enhancing the AMPK/SIRT1/eNOS pathway and attenuated oxidative stress and ER stress in aortas of diet-induced obese mice. In summary, our study reveals the potent vaso-protective effect of TMS and its therapeutic potential against endothelial dysfunction in metabolic disorders.
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Affiliation(s)
- Chunxiu Zhou
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Avenida da Universidade, Taipa, Macau 999078, China; (C.Z.); (Y.T.); (Y.W.)
| | - Yi Tan
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Avenida da Universidade, Taipa, Macau 999078, China; (C.Z.); (Y.T.); (Y.W.)
| | - Baojun Xu
- Food Science and Technology Program, BNU-HKBU United International College, Zhuhai 519087, China;
| | - Yitao Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Avenida da Universidade, Taipa, Macau 999078, China; (C.Z.); (Y.T.); (Y.W.)
| | - Wai-San Cheang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Avenida da Universidade, Taipa, Macau 999078, China; (C.Z.); (Y.T.); (Y.W.)
- Correspondence: ; Tel.: +86-853-8822-4914
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