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Zhu J, Li J, Yao T, Li T, Chang B, Yi X. Analysis of the role of irisin receptor signaling in regulating osteogenic/adipogenic differentiation of bone marrow mesenchymal stem cells. Biotechnol Genet Eng Rev 2024; 40:2012-2035. [PMID: 37010292 DOI: 10.1080/02648725.2023.2197713] [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: 02/27/2023] [Accepted: 03/27/2023] [Indexed: 04/04/2023]
Abstract
The study aimed to explore the role of the irisin receptor (integrin αVβ5) signaling pathway in obesity-induced osteoporosis and its potential mechanism. The integrin αVβ5 gene of bone marrow mesenchymal stem cells (BMSCs) was silenced and overexpressed, and the cells were exposed to irisin treatment and mechanical stretch. Mouse models of obesity were established by feeding mice a high-fat diet, and 8-week caloric restriction/aerobic exercise regimens were implemented. The results showed that after silencing the integrin αVβ5, the osteogenic differentiation of BMSCs was significantly reduced. While overexpression of the integrin αVβ5 increased the osteogenic differentiation of BMSCs. Besides, mechanical stretch promoted the osteogenic differentiation of BMSCs. Obesity did not affect integrin αVβ5 expression in the bone, but it downregulated the expression of irisin and osteogenic factors, upregulated the expression of adipogenic factors, increased bone marrow fat, reduced bone formation, and destroyed the bone microstructure. Caloric restriction, exercise, and a combined regimen reversed these effects and improved obesity-induced osteoporosis, with the combined treatment exhibiting the most potent effect. This study confirms that the irisin receptor signaling pathway has a significant part in transmitting 'mechanical stress' and regulating 'osteogenic/adipogenic differentiation' of BMSCs via recombinant irisin, mechanical stretch, and overexpression/silencing of the integrin αVβ5 gene.
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Affiliation(s)
- Jingsheng Zhu
- School of Kinesiology, Shanghai University of Sport, Shanghai, China
- Department of Physical Education, Zhengzhou University, Zhengzhou, China
| | - Jing Li
- School of Kinesiology, Shenyang Sport University, Shenyang, China
| | - Tingting Yao
- School of Kinesiology, Shenyang Sport University, Shenyang, China
| | - Tao Li
- School of Kinesiology, Shenyang Sport University, Shenyang, China
| | - Bo Chang
- School of Kinesiology, Shanghai University of Sport, Shanghai, China
- School of Kinesiology, Shenyang Sport University, Shenyang, China
| | - Xuejie Yi
- School of Kinesiology, Shenyang Sport University, Shenyang, China
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2
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Liu N, Cui X, Guo T, Wei X, Sun Y, Liu J, Zhang Y, Ma W, Yan W, Chen L. Baicalein Ameliorates Insulin Resistance of HFD/STZ Mice Through Activating PI3K/AKT Signal Pathway of Liver and Skeletal Muscle in a GLP-1R-Dependent Manner. Antioxidants (Basel) 2024; 13:1246. [PMID: 39456499 PMCID: PMC11505556 DOI: 10.3390/antiox13101246] [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: 09/03/2024] [Revised: 10/10/2024] [Accepted: 10/10/2024] [Indexed: 10/28/2024] Open
Abstract
Insulin resistance (IR) is the principal pathophysiological change occurring in diabetes mellitus (DM). Baicalein, a bioactive flavonoid primarily extracted from the medicinal plant Scutellaria baicalensis Georgi, has been shown in our previous research to be a potential natural glucagon-like peptide-1 receptor (GLP-1R) agonist. However, the exact therapeutic effect of baicalein on DM and its underlying mechanisms remain elusive. In this study, we investigated the therapeutic effects of baicalein on diabetes and sought to clarify its underlying molecular mechanisms. Our results demonstrated that baicalein improves hyperglycemic, hyperinsulinemic, and glucometabolic disorders in mice with induced diabetes via GLP-1R. This was confirmed by the finding that baicalein's effects on improving IR were largely diminished in mice with whole-body Glp1r ablation. Complementarily, network pharmacology analysis highlighted the pivotal involvement of the phosphatidylinositol-3-kinase (PI3K)/protein kinase B (AKT) insulin signaling pathway in the therapeutic actions of baicalein on IR. Our mechanism research significantly confirmed that baicalein mitigates hepatic and muscular IR through the PI3K/AKT signal pathway, both in vitro and in vivo. Furthermore, we demonstrated that baicalein enhances glucose uptake in skeletal muscle cells under IR conditions through the Ca2+/calmodulin-dependent protein kinase II (CaMKII)-adenosine 5'-monophosphate-activated protein kinase (AMPK)-glucose transporter 4 (GLUT4) signaling pathway in a GLP-1R-dependent manner. In conclusion, our findings confirm the therapeutic effects of baicalein on IR and reveal that it improves IR in liver and muscle tissues through the PI3K/AKT insulin signaling pathway in a GLP-1R dependent manner. Moreover, we clarified that baicalein enhances the glucose uptake in skeletal muscle tissue through the Ca2+/CaMKII-AMPK-GLUT4 signal pathway.
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Affiliation(s)
- Na Liu
- Department of Pharmacology, School of Basic Medical Sciences, Xi’an Jiaotong University, Xi’an 710061, China; (N.L.); (X.C.); (T.G.); (X.W.); (Y.S.); (J.L.); (Y.Z.)
| | - Xin Cui
- Department of Pharmacology, School of Basic Medical Sciences, Xi’an Jiaotong University, Xi’an 710061, China; (N.L.); (X.C.); (T.G.); (X.W.); (Y.S.); (J.L.); (Y.Z.)
| | - Tingli Guo
- Department of Pharmacology, School of Basic Medical Sciences, Xi’an Jiaotong University, Xi’an 710061, China; (N.L.); (X.C.); (T.G.); (X.W.); (Y.S.); (J.L.); (Y.Z.)
| | - Xiaotong Wei
- Department of Pharmacology, School of Basic Medical Sciences, Xi’an Jiaotong University, Xi’an 710061, China; (N.L.); (X.C.); (T.G.); (X.W.); (Y.S.); (J.L.); (Y.Z.)
| | - Yuzhuo Sun
- Department of Pharmacology, School of Basic Medical Sciences, Xi’an Jiaotong University, Xi’an 710061, China; (N.L.); (X.C.); (T.G.); (X.W.); (Y.S.); (J.L.); (Y.Z.)
| | - Jieyun Liu
- Department of Pharmacology, School of Basic Medical Sciences, Xi’an Jiaotong University, Xi’an 710061, China; (N.L.); (X.C.); (T.G.); (X.W.); (Y.S.); (J.L.); (Y.Z.)
| | - Yangyang Zhang
- Department of Pharmacology, School of Basic Medical Sciences, Xi’an Jiaotong University, Xi’an 710061, China; (N.L.); (X.C.); (T.G.); (X.W.); (Y.S.); (J.L.); (Y.Z.)
| | - Weina Ma
- School of Pharmacy, Xi’an Jiaotong University, Xi’an 710049, China;
| | - Wenhui Yan
- Department of Pharmacology, School of Basic Medical Sciences, Xi’an Jiaotong University, Xi’an 710061, China; (N.L.); (X.C.); (T.G.); (X.W.); (Y.S.); (J.L.); (Y.Z.)
| | - Lina Chen
- Department of Pharmacology, School of Basic Medical Sciences, Xi’an Jiaotong University, Xi’an 710061, China; (N.L.); (X.C.); (T.G.); (X.W.); (Y.S.); (J.L.); (Y.Z.)
- Key Laboratory of Environment and Genes Related to Diseases (Xi’an Jiaotong University), Ministry of Education, Xi’an 710061, China
- Cardiometabolic Innovation Center, Ministry of Education, Xi’an 710061, China
- Department of Endocrinology and Second Department of Geriatrics, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an 710061, China
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Zhang Y, Luo C, Huang P, Cheng Y, Ma Y, Gao J, Ding H. Luteolin alleviates muscle atrophy, mitochondrial dysfunction and abnormal FNDC5 expression in high fat diet-induced obese rats and palmitic acid-treated C2C12 myotubes. J Nutr Biochem 2024:109780. [PMID: 39395694 DOI: 10.1016/j.jnutbio.2024.109780] [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: 05/06/2024] [Revised: 09/22/2024] [Accepted: 10/07/2024] [Indexed: 10/14/2024]
Abstract
Obesity is associated with a series of skeletal muscle impairments and dysfunctions, which are characterized by metabolic disturbances and muscle atrophy. Luteolin is a phenolic phytochemical with broad pharmacological activities. The present study aimed to evaluate the protective effects of Luteolin on muscle function and explore the potential mechanisms in high-fat diet (HFD)-induced obese rats and palmitic acid (PA)-treated C2C12 myotubes. Male Sprague-Dawley (SD) rats were fed with a control diet or HFD and orally administrated 0.5% sodium carboxymethyl cellulose (vehicle) or Luteolin (25, 50 and 100 mg/kg, respectively) for 12 weeks. The results showed that Luteolin ameliorated HFD-induced body weight gain, glucose intolerance and hyperlipidemia. Luteolin also alleviated muscle atrophy, decreased ectopic lipid deposition and prompted muscle-fiber-type conversion in the skeletal muscle. Meanwhile, we observed an evident improvement in mitochondrial quality control and respiratory capacity, accompanied by reduced oxidative stress. Mechanistic studies indicated that AMPK/SIRT1/PGC-1α signaling pathway plays a key role in the protective effects of Luteolin on skeletal muscle in the obese states, which was further verified by using specific inhibitors of AMPK and SIRT1. Moreover, the mRNA expression levels of markers in brown adipocyte formation were significantly up-regulated post Luteolin supplementation in different adipose depots. Taken together, these results revealed that Luteolin supplementation might be a promising strategy to prevent obesity-induced loss of mass and biological dysfunctions of skeletal muscle.
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Affiliation(s)
- Yiyuan Zhang
- Department of Pharmaceutical Science, Wuhan University, Wuhan, 430000
| | - Chunyun Luo
- Department of Pharmaceutical Science, Wuhan University, Wuhan, 430000
| | - Puxin Huang
- Department of Pharmaceutical Science, Wuhan University, Wuhan, 430000
| | - Yahong Cheng
- Department of Pharmaceutical Science, Wuhan University, Wuhan, 430000
| | - Yufang Ma
- Department of Pharmaceutical Science, Wuhan University, Wuhan, 430000
| | - Jiefang Gao
- Department of Pharmaceutical Science, Wuhan University, Wuhan, 430000
| | - Hong Ding
- Department of Pharmaceutical Science, Wuhan University, Wuhan, 430000.
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Jiang LP, Fu M, Yin N, Jia YM, Duan FY, Feng L, Yang L, Han HR, Wang J, Zhu T, Ji JZ, Tai T, Li XM, Zheng ZD, Ding PJ, Sun YL, Mi QY, Xie HG. Sex differences in the metabolic activation of and platelet response to vicagrel in mice: Androgen as a key player. Biochem Pharmacol 2024; 230:116564. [PMID: 39366431 DOI: 10.1016/j.bcp.2024.116564] [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: 04/22/2024] [Revised: 09/10/2024] [Accepted: 10/01/2024] [Indexed: 10/06/2024]
Abstract
As a biological variable, sex influences the metabolism of and/or response to certain drugs. Vicagrel is being developed as an investigational new drug in China; however, it is unknown whether sex could affect its metabolic activation and platelet responsiveness. This study aimed to determine whether such differences could exist, and to elucidate the mechanisms involved. Orchiectomized (ORX) or ovariectomized (OVX) mouse models were used to investigate the effects of androgens or estrogens on the metabolic activation of and platelet response to vicagrel. Plasma vicagrel active metabolite H4 concentrations, platelet inhibition of vicagrel, and protein levels of intestinal hydrolases Aadac and Ces2 were measured, respectively. Further, p38-MAPK signaling pathway was enriched, whose role was determined using SB202190. Results showed that female mice exhibited significantly elevated systemic exposure of H4 and enhanced platelet responses to vicagrel than males, and that protein expression levels of Aadac and Ces2 differed by sex. OVX mice exhibited less changes than sham mice. ORX mice exhibited increases in protein levels of intestinal hydrolases, systemic exposure of H4, and platelet inhibition of vicagrel, but dihydrotestosterone (DHT) reversed these changes in ORX mice and suppressed these changes in OVX mice. Phosphorylated p38 levels were reduced in female or ORX mice but increased in ORX mice by DHT. SB202190 reversed DHT-induced changes observed in ORX mice. We concluded that sex differences exist in metabolic activation of and platelet response to vicagrel in mice through elevation of p38 phosphorylation by androgens, suggesting sex-based vicagrel dosage adjustments for patient care.
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Affiliation(s)
- Li-Ping Jiang
- Division of Clinical Pharmacology, General Clinical Research Center, Nanjing First Hospital, China Pharmaceutical University, Nanjing 210006, China; Department of Clinical Pharmacy, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Min Fu
- Division of Clinical Pharmacology, General Clinical Research Center, Nanjing First Hospital, China Pharmaceutical University, Nanjing 210006, China; Department of Clinical Pharmacy, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Na Yin
- Division of Clinical Pharmacology, General Clinical Research Center, Nanjing First Hospital, China Pharmaceutical University, Nanjing 210006, China; Department of Clinical Pharmacy, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Yu-Meng Jia
- Division of Clinical Pharmacology, General Clinical Research Center, Nanjing First Hospital, China Pharmaceutical University, Nanjing 210006, China
| | - Fu-Yang Duan
- Division of Clinical Pharmacology, General Clinical Research Center, Nanjing First Hospital, China Pharmaceutical University, Nanjing 210006, China; Department of Clinical Pharmacy, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Lei Feng
- Division of Clinical Pharmacology, General Clinical Research Center, Nanjing First Hospital, China Pharmaceutical University, Nanjing 210006, China; Department of Clinical Pharmacy, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Li Yang
- Division of Clinical Pharmacology, General Clinical Research Center, Nanjing First Hospital, China Pharmaceutical University, Nanjing 210006, China; Department of Clinical Pharmacy, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Hao-Ru Han
- Division of Clinical Pharmacology, General Clinical Research Center, Nanjing First Hospital, China Pharmaceutical University, Nanjing 210006, China; Department of Clinical Pharmacy, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Jin Wang
- Division of Clinical Pharmacology, General Clinical Research Center, Nanjing First Hospital, China Pharmaceutical University, Nanjing 210006, China; Department of Clinical Pharmacy, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Ting Zhu
- Division of Clinical Pharmacology, General Clinical Research Center, Nanjing First Hospital, China Pharmaceutical University, Nanjing 210006, China; Department of Clinical Pharmacy, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Jin-Zi Ji
- Division of Clinical Pharmacology, General Clinical Research Center, Nanjing First Hospital, China Pharmaceutical University, Nanjing 210006, China; Division of Clinical Pharmacology, General Clinical Research Center, Nanjing First Hospital, Nanjing Medical University, Nanjing 210006, China
| | - Ting Tai
- Division of Clinical Pharmacology, General Clinical Research Center, Nanjing First Hospital, China Pharmaceutical University, Nanjing 210006, China; Department of Clinical Pharmacy, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 211198, China; Division of Clinical Pharmacology, General Clinical Research Center, Nanjing First Hospital, Nanjing Medical University, Nanjing 210006, China
| | - Xue-Mei Li
- Division of Clinical Pharmacology, General Clinical Research Center, Nanjing First Hospital, Nanjing Medical University, Nanjing 210006, China
| | - Zhao-Dong Zheng
- Division of Clinical Pharmacology, General Clinical Research Center, Nanjing First Hospital, China Pharmaceutical University, Nanjing 210006, China; Department of Clinical Pharmacy, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Pei-Jie Ding
- Division of Clinical Pharmacology, General Clinical Research Center, Nanjing First Hospital, China Pharmaceutical University, Nanjing 210006, China; Department of Clinical Pharmacy, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Ya-Lan Sun
- Division of Clinical Pharmacology, General Clinical Research Center, Nanjing First Hospital, China Pharmaceutical University, Nanjing 210006, China; Department of Clinical Pharmacy, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Qiong-Yu Mi
- Division of Clinical Pharmacology, General Clinical Research Center, Nanjing First Hospital, China Pharmaceutical University, Nanjing 210006, China; Division of Clinical Pharmacology, General Clinical Research Center, Nanjing First Hospital, Nanjing Medical University, Nanjing 210006, China.
| | - Hong-Guang Xie
- Division of Clinical Pharmacology, General Clinical Research Center, Nanjing First Hospital, China Pharmaceutical University, Nanjing 210006, China; Department of Clinical Pharmacy, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 211198, China; Division of Clinical Pharmacology, General Clinical Research Center, Nanjing First Hospital, Nanjing Medical University, Nanjing 210006, China.
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Lai HH, Jeng KS, Huang CT, Chu AJ, Her GM. Heightened TPD52 linked to metabolic dysfunction and associated abnormalities in zebrafish. Arch Biochem Biophys 2024; 761:110166. [PMID: 39349129 DOI: 10.1016/j.abb.2024.110166] [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: 05/27/2024] [Revised: 09/05/2024] [Accepted: 09/25/2024] [Indexed: 10/02/2024]
Abstract
The tumor protein D52 (TPD52) gene encodes a proto-oncogene protein associated with various medical conditions, including breast and prostate cancers. It plays a role in multiple biological pathways such as cell growth, differentiation, and apoptosis. The function of TPD52 in lipid droplet biosynthesis has been investigated in vitro. However, its precise role in lipid metabolism in animal models is not fully understood. To investigate the functions of TPD52 in vivo, we performed a conditional TPD52 protein expression analysis using a Tet-off transgenic system to establish conditionally expressed Tpd52 transgenic zebrafish. The effect of Tpd52 on lipogenesis was assessed using various methods, including whole-mount Oil Red O staining, histological examination, and measurement of inflammatory markers and potential targets using real-time quantitative polymerase chain reaction and immunoblotting in Tpd52 fish. Zebrafish with increased Tpd52 levels exhibited notable weight gain and the enlargement of fat deposits, which were mainly attributed to an increase in the volume of adipocytes. Moreover, Tpd52 overexpression was correlated with the triggering of the adipocyte differentiation signaling pathway. During adipocytic differentiation in response to nutrient status, our observations revealed adipogenesis, nonalcoholic fatty liver disease, and metabolic cardiomyopathy (MCM) in Tpd52 transgenic zebrafish. To gain a deeper understanding of the contribution of these proteins to the regulation of cellular growth, we investigated the expression of their corresponding genes and proteins in zebrafish. In the present study, the activated protein kinase pathway was identified as the primary target of TPD52. Adult Tpd52 zebrafish showed increased lipid accumulation, resulting in the development of visceral obesity, nonalcoholic fatty liver disease, and MCM. These findings strongly suggest that TPD52 actively contributes to adipose tissue expansion and its subsequent effects. This investigation provides compelling evidence that Tpd52 facilitates adipocyte development and related metabolic comorbidities in zebrafish.
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Affiliation(s)
- Hsin-Hung Lai
- Institute of Biopharmaceutical Sciences, National Yang Ming Chiao Tung University, Taipei, 112, Taiwan
| | - Kuo-Shyang Jeng
- Division of General Surgery, Far Eastern Memorial Hospital, New Taipei, 220, Taiwan
| | - Chung-Tsui Huang
- Department of Internal Medicine, Division of Gastroenterology and Hepatology, Far Eastern Memorial Hospital, New Taipei, 220, Taiwan
| | - An-Ju Chu
- Institute of Biopharmaceutical Sciences, National Yang Ming Chiao Tung University, Taipei, 112, Taiwan
| | - Guor Mour Her
- Institute of Biopharmaceutical Sciences, National Yang Ming Chiao Tung University, Taipei, 112, Taiwan.
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Zheng M, Jiang Q, You J, Gao B, Cui W, Yao W, Su F, Sun X, La L. Myricanol represses renal fibrosis by activating TFAM and ZNRF1 to inhibit tubular epithelial cells ferroptosis. Eur J Pharmacol 2024; 984:176999. [PMID: 39349116 DOI: 10.1016/j.ejphar.2024.176999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2024] [Revised: 05/19/2024] [Accepted: 09/12/2024] [Indexed: 10/02/2024]
Abstract
BACKGROUND Mitochondrial dysfunction induces ferroptosis in renal tubular epithelial cells (TECs). Studies have shown that myricanol maintains muscle cell function by enhancing mitochondrial energy metabolism. HYPOTHESIS Myricanol delays renal fibrosis by maintaining mitochondrial integrity and inhibiting ferroptosis in TECs. METHODS Mice kidney lacking mitochondrial transcription factor A (TFAM), blood specimens, or pathological sections of renal tissue from patients with renal failure were used to explore the relationship between mitochondrial and renal functions. Erastin induced-TECs ferroptosis was used to study the potential mechanism by which TFAM regulates renal fibrosis. Chronic kidney disease (CKD) mice were utilized to explore the anti-fibrotic effects of myricanol. RESULTS The number of mitochondria and TFAM expression were decreased in human blood samples and pathological sections. Renal TFAM-deficient mice exhibited abnormalities in renal function, including ferroptosis and fibrosis. Ferrostatin-1 significantly inhibited renal fibrosis by preventing TECs ferroptosis. Transcriptional sequencing results indicated that zinc and ring finger 1 (ZNRF1) were important downstream genes of TFAM that regulate ferroptosis. We demonstrated that TFAM deficiency and ferroptosis, which destroyed interaction between ZNRF1 and the iron transport-related protein lipocalin-2 (LCN2), but myricanol clould reverse this effect. Overexpression of ZNRF1 efficiently maintained mitochondrial integrity and inhibited renal fibrosis. Myricanol ameliorated transforming growth factor β1-induced mitochondrial impairment. We firstly confirmed that myricanol efficiently improved renal function and suppresses fibrosis in CKD mice. CONCLUSIONS Myricanol efficiently inhibit fibrosis through activating TFAM to stimulate the interaction between ZNRF1 and LCN2.
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Affiliation(s)
- Min Zheng
- Department of Pharmacy, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Qiao Jiang
- Department of Pharmacy, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Junxiong You
- The Key Laboratory of Molecular Biology, State Administration of Traditional Chinese Medicine, School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, 510515, China
| | - Baogui Gao
- The Key Laboratory of Molecular Biology, State Administration of Traditional Chinese Medicine, School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, 510515, China
| | - Weiwei Cui
- Department of Imaging, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Wanyu Yao
- The Key Laboratory of Molecular Biology, State Administration of Traditional Chinese Medicine, School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, 510515, China
| | - Fengqing Su
- Department of Pharmacy, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Xuegang Sun
- The Key Laboratory of Molecular Biology, State Administration of Traditional Chinese Medicine, School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, 510515, China.
| | - Lei La
- Department of Pharmacy, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China.
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Carneiro FS, Katashima CK, Dodge JD, Cintra DE, Pauli JR, Da Silva ASR, Ropelle ER. Tissue-specific roles of mitochondrial unfolded protein response during obesity. Obes Rev 2024; 25:e13791. [PMID: 38880974 DOI: 10.1111/obr.13791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 03/20/2024] [Accepted: 06/02/2024] [Indexed: 06/18/2024]
Abstract
Obesity is a worldwide multifactorial disease caused by an imbalance in energy metabolism, increasing adiposity, weight gain, and promoting related diseases such as diabetes, cardiovascular diseases, neurodegeneration, and cancer. Recent findings have reported that metabolic stress related to obesity induces a mitochondrial stress response called mitochondrial unfolded protein response (UPRmt), a quality control pathway that occurs in a nuclear DNA-mitochondria crosstalk, causing transduction of chaperones and proteases under stress conditions. The duality of UPRmt signaling, with both beneficial and detrimental effects, acts in different contexts depending on the tissue, cell type, and physiological states, affecting the mitochondrial function and efficiency and the metabolism homeostasis during obesity, which remains not fully clarified. Therefore, this review discusses the most recent findings regarding UPRmt signaling during obesity, bringing an overview of UPRmt across different metabolic tissues.
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Affiliation(s)
- Fernanda S Carneiro
- Laboratory of Molecular Biology of Exercise (LaBMEx), Faculty of Applied Sciences, University of Campinas (UNICAMP), Limeira, São Paulo, Brazil
| | - Carlos K Katashima
- Laboratory of Molecular Biology of Exercise (LaBMEx), Faculty of Applied Sciences, University of Campinas (UNICAMP), Limeira, São Paulo, Brazil
| | - Joshua D Dodge
- Department of Biology, The University of Texas at Arlington (UTA), Arlington, Texas, USA
| | - Dennys E Cintra
- Laboratory of Nutritional Genomic, School of Applied Sciences, University of Campinas (UNICAMP), Limeira, São Paulo, Brazil
| | - José Rodrigo Pauli
- Laboratory of Molecular Biology of Exercise (LaBMEx), Faculty of Applied Sciences, University of Campinas (UNICAMP), Limeira, São Paulo, Brazil
- Obesity and Comorbidities Research Center (OCRC), University of Campinas (UNICAMP), Campinas, São Paulo, Brazil
| | - Adelino S R Da Silva
- Postgraduate Program in Rehabilitation and Functional Performance, Ribeirão Preto Medical School, University of São Paulo (USP), Ribeirão Preto, São Paulo, Brazil
| | - Eduardo R Ropelle
- Laboratory of Molecular Biology of Exercise (LaBMEx), Faculty of Applied Sciences, University of Campinas (UNICAMP), Limeira, São Paulo, Brazil
- Obesity and Comorbidities Research Center (OCRC), University of Campinas (UNICAMP), Campinas, São Paulo, Brazil
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Liang P, Peng X, Hu G, Wu R, Jin J, Ang S, Li D. Four new sesquiterpenoids from the aerial parts of Pogostemon cablin (Blanco.) Benth. and their hypoglycemic activity. Fitoterapia 2024; 177:106054. [PMID: 38852891 DOI: 10.1016/j.fitote.2024.106054] [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: 04/18/2024] [Revised: 05/31/2024] [Accepted: 06/01/2024] [Indexed: 06/11/2024]
Abstract
Four previously undescribed sesquiterpenoids (1-4), including two natural guaiane-type sesquiterpenoids (1-2), a rearranged guaiane-type sesquiterpenoid (3), and a norsesquiterpenoid (4), were isolated from the ethanol extract of the aerial parts of Pogostemon cablin (Blanco.) Benth. Their chemical structures were determined based on extensive spectroscopic data analysis, including UV, IR, NMR, HRESIMS, and CD spectroscopy. Compound 1 exhibited a good hypoglycemic activity with glucose uptake of 124.3% and 131.2% in myotubes, respectively, at the concentrations of 20 and 40 μM and showed no cytotoxicity. These findings provide a material basis for further research on P. cablin.
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Affiliation(s)
- Peiting Liang
- School of Pharmacy and Food Engineering, Wuyi University, Jiangmen 529020, PR China
| | - Xingjia Peng
- School of Pharmacy and Food Engineering, Wuyi University, Jiangmen 529020, PR China
| | - Gui'e Hu
- School of Pharmacy and Food Engineering, Wuyi University, Jiangmen 529020, PR China
| | - Rihui Wu
- School of Pharmacy and Food Engineering, Wuyi University, Jiangmen 529020, PR China
| | - Jingwei Jin
- School of Pharmacy and Food Engineering, Wuyi University, Jiangmen 529020, PR China
| | - Song Ang
- School of Pharmacy and Food Engineering, Wuyi University, Jiangmen 529020, PR China; International Healthcare Innovation Institute (Jiangmen), Jiangmen 529040, PR China.
| | - Dongli Li
- School of Pharmacy and Food Engineering, Wuyi University, Jiangmen 529020, PR China; International Healthcare Innovation Institute (Jiangmen), Jiangmen 529040, PR China.
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9
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Zhaoyu L, Xiaomeng Y, Na L, Jiamin S, Guanhua D, Xiuying Y. Roles of natural products on myokine expression and secretion in skeletal muscle atrophy. Gen Comp Endocrinol 2024; 355:114550. [PMID: 38768928 DOI: 10.1016/j.ygcen.2024.114550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 05/15/2024] [Accepted: 05/15/2024] [Indexed: 05/22/2024]
Abstract
Skeletal muscles serve both in movement and as endocrine organs. Myokines secreted by skeletal muscles activate biological functions within muscles and throughout the body via autocrine, paracrine, and/or endocrine pathways. Skeletal muscle atrophy can influence myokine expression and secretion, while myokines can impact the structure and function of skeletal muscles. Regulating the expression and secretion of myokines through the pharmacological approach is a strategy for alleviating skeletal muscle atrophy. Natural products possess complex structures and chemical properties. Previous studies have demonstrated that various natural products exert beneficial effects on skeletal muscle atrophy. This article reviewed the regulatory effects of natural products on myokines and summarized the research progress on skeletal muscle atrophy associated with myokine regulation. The focus is on how small-molecule natural products affect the regulation of interleukin 6 (IL-6), irisin, myostatin, IGF-1, and FGF-21 expression. We contend that the development of small-molecule natural products targeting the regulation of myokines holds promise in combating skeletal muscle atrophy.
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Affiliation(s)
- Liu Zhaoyu
- Beijing Key Laboratory of Drug Target Identification and New Drug Screening, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, PR China
| | - Ye Xiaomeng
- Beijing Key Laboratory of Drug Target Identification and New Drug Screening, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, PR China
| | - Li Na
- Beijing Key Laboratory of Drug Target Identification and New Drug Screening, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, PR China
| | - Shang Jiamin
- Beijing Key Laboratory of Drug Target Identification and New Drug Screening, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, PR China
| | - Du Guanhua
- Beijing Key Laboratory of Drug Target Identification and New Drug Screening, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, PR China.
| | - Yang Xiuying
- Beijing Key Laboratory of Drug Target Identification and New Drug Screening, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, PR China.
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Zhang T, Linghu KG, Tan J, Wang M, Chen D, Shen Y, Wu J, Shi M, Zhou Y, Tang L, Liu L, Qin ZH, Guo B. TIGAR exacerbates obesity by triggering LRRK2-mediated defects in macroautophagy and chaperone-mediated autophagy in adipocytes. Autophagy 2024; 20:1741-1761. [PMID: 38686804 PMCID: PMC11262232 DOI: 10.1080/15548627.2024.2338576] [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: 07/06/2023] [Revised: 03/22/2024] [Accepted: 03/31/2024] [Indexed: 05/02/2024] Open
Abstract
Obesity is one of the most common metabolic diseases around the world, which is distinguished by the abnormal buildup of triglycerides within adipose cells. Recent research has revealed that autophagy regulates lipid mobilization to maintain energy balance. TIGAR (Trp53 induced glycolysis regulatory phosphatase) has been identified as a glycolysis inhibitor, whether it plays a role in the metabolism of lipids is unknown. Here, we found that TIGAR transgenic (TIGAR+/+) mice exhibited increased fat mass and trended to obesity phenotype. Non-target metabolomics showed that TIGAR caused the dysregulation of the metabolism profile. The quantitative transcriptome sequencing identified an increased levels of LRRK2 and RAB7B in the adipose tissue of TIGAR+/+ mice. It was confirmed in vitro that TIGAR overexpression increased the levels of LRRK2 by inhibiting polyubiquitination degradation, thereby suppressing macroautophagy and chaperone-mediated autophagy (CMA) while increasing lipid accumulation which were reversed by the LRRK2 inhibitor DNL201. Furthermore, TIGAR drove LRRK2 to interact with RAB7B for suppressing lysosomal degradation of lipid droplets, while the increased lipid droplets in adipocytes were blocked by the RAB7B inhibitor ML282. Additionally, fat-specific TIGAR knockdown of TIGAR+/+ mice alleviated the symptoms of obesity, and adipose tissues-targeting superiority DNL201 nano-emulsion counteracted the obesity phenotype in TIGAR+/+ mice. In summary, the current results indicated that TIGAR performed a vital function in the lipid metabolism through LRRK2-mediated negative regulation of macroautophagy and CMA in adipocyte. The findings suggest that TIGAR has the potential to serve as a viable therapeutic target for treating obesity and its associated metabolic dysfunction.
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Affiliation(s)
- Tian Zhang
- Guizhou Institute of Precision Medicine, Affiliated Hospital of Guizhou Medical University, Guizhou Medical University, Guiyang, Guizhou, China
- Department of Pathophysiology, Guizhou Medical University, Guiyang, Guizhou, China
- Guizhou Provincial Key Laboratory of Pathogenesis and Drug Research on Common Chronic Diseases, Guizhou Medical University, Guiyang, Guizhou, China
| | - Ke-Gang Linghu
- Guizhou Institute of Precision Medicine, Affiliated Hospital of Guizhou Medical University, Guizhou Medical University, Guiyang, Guizhou, China
| | - Jia Tan
- Department of Pathophysiology, Guizhou Medical University, Guiyang, Guizhou, China
| | - Mingming Wang
- Department of Pharmacology, Laboratory of Aging and Nervous Diseases, Jiangsu Key Laboratory of Neuropsychiatric Diseases, College of Pharmaceutical Science, Soochow University, Suzhou, Jiangsu, China
| | - Diao Chen
- Department of Pathophysiology, Guizhou Medical University, Guiyang, Guizhou, China
| | - Yan Shen
- Department of Pathophysiology, Guizhou Medical University, Guiyang, Guizhou, China
| | - Junchao Wu
- Department of Pharmacology, Laboratory of Aging and Nervous Diseases, Jiangsu Key Laboratory of Neuropsychiatric Diseases, College of Pharmaceutical Science, Soochow University, Suzhou, Jiangsu, China
| | - Mingjun Shi
- Department of Pathophysiology, Guizhou Medical University, Guiyang, Guizhou, China
- Guizhou Provincial Key Laboratory of Pathogenesis and Drug Research on Common Chronic Diseases, Guizhou Medical University, Guiyang, Guizhou, China
- Collaborative Innovation Center for Prevention and Control of Endemic and Ethnic Regional Diseases Co-constructed by the Province and Ministry, Guizhou Medical University, Guiyang, Guizhou, China
| | - Yuxia Zhou
- Department of Pathophysiology, Guizhou Medical University, Guiyang, Guizhou, China
- Guizhou Provincial Key Laboratory of Pathogenesis and Drug Research on Common Chronic Diseases, Guizhou Medical University, Guiyang, Guizhou, China
| | - Lei Tang
- Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guizhou Medical University, Guiyang, Guizhou, China
| | - Lirong Liu
- Guizhou Institute of Precision Medicine, Affiliated Hospital of Guizhou Medical University, Guizhou Medical University, Guiyang, Guizhou, China
| | - Zheng-Hong Qin
- Department of Pharmacology, Laboratory of Aging and Nervous Diseases, Jiangsu Key Laboratory of Neuropsychiatric Diseases, College of Pharmaceutical Science, Soochow University, Suzhou, Jiangsu, China
- Institute of Health Technology, Global Institute of Software Technology, Suzhou, Jiangsu, China
| | - Bing Guo
- Department of Pathophysiology, Guizhou Medical University, Guiyang, Guizhou, China
- Guizhou Provincial Key Laboratory of Pathogenesis and Drug Research on Common Chronic Diseases, Guizhou Medical University, Guiyang, Guizhou, China
- Collaborative Innovation Center for Prevention and Control of Endemic and Ethnic Regional Diseases Co-constructed by the Province and Ministry, Guizhou Medical University, Guiyang, Guizhou, China
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11
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Du J, Zhu Y, Yang X, Geng X, Xu Y, Zhang M, Zhang M. Berberine attenuates obesity-induced insulin resistance by inhibiting miR-27a secretion. Diabet Med 2024; 41:e15319. [PMID: 38711201 DOI: 10.1111/dme.15319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 03/06/2024] [Accepted: 03/11/2024] [Indexed: 05/08/2024]
Abstract
INTRODUCTION Berberine (BBR) is an alkaloid found in plants. It has neuroprotective, anti-inflammatory and lipid-lowering activity. However, the efficacy of treatment with BBR and the mechanisms through which it acts need further study. AIMS This study investigated the therapeutic effects and the mechanism of action of BBR on obesity-induced insulin resistance in peripheral tissues. METHODS High-fat-fed C57BL/6J mice and low-fat-fed C57BL/6J mice with miR-27a overexpression were given BBR intervention (100 mg/kg, po), and the oral glucose tolerance test (OGTT) and insulin tolerance test (ITT) were performed. Palmitic acid-stimulated hypertrophic adipocyte models were treated with BBR (10 μM). Related indicators and protein expression levels were examined. RESULTS The AUCs of the OGTT and the ITT in the BBR intervention group were reduced significantly (p < 0.01) (p < 0.05), and the serum biochemical parameters, including FBG, TC, TG and LDL-C were significantly reduced after BBR intervention. In the in vitro experiments, the triglyceride level and volume of lipid droplets decreased significantly after BBR intervention (p < 0.01) (p < 0.05). Likewise, BBR ameliorates skeletal muscle and pancreas insulin signalling pathways in vivo and in vitro. DISCUSSION The results showed that BBR significantly ameliorated insulin resistance, reduced body weight and percent body fat and improved serum biochemical parameters in mice. Likewise, BBR reduced triglyceride level and lipid droplet volume in hypertrophic adipocytes, BBR improved obesity effectively. Meanwhile, BBR ameliorated the histomorphology of the pancreas, and skeletal muscle and pancreas insulin related signalling pathways of islets in in vitro and in vivo experiments. The results further demonstrated that BBR inhibited miR-27a levels in serum from obese mice and supernatant of hypertrophic adipocytes. miR-27a overexpression in low-fat fed mice indicated that miR-27a caused insulin resistance, and BBR intervention significantly improved the miR-27a induced insulin resistance status. CONCLUSION This study demonstrates the important role of BBR in obesity-induced peripheral insulin resistance and suggest that the mechanism of its effect may be inhibition of miR-27a secretion.
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Affiliation(s)
- Junda Du
- Department of Pharmacology, College of Basic Medical Sciences, School of nursing, Jilin University, Changchun, Jilin, China
- School of Pharmaceutical Science, Jilin University, Changchun, Jilin, China
| | - Yu Zhu
- Department of Ophthalmology of Jilin Province FAW General Hospital, Changchun, Jilin, China
| | - Xuehan Yang
- Department of Pharmacology, College of Basic Medical Sciences, School of nursing, Jilin University, Changchun, Jilin, China
| | - Xinru Geng
- Department of Pharmacology, College of Basic Medical Sciences, School of nursing, Jilin University, Changchun, Jilin, China
| | - Yang Xu
- Department of Pharmacology, College of Basic Medical Sciences, School of nursing, Jilin University, Changchun, Jilin, China
| | - Meishuang Zhang
- Department of Pharmacology, College of Basic Medical Sciences, School of nursing, Jilin University, Changchun, Jilin, China
| | - Ming Zhang
- Department of Pharmacology, College of Basic Medical Sciences, School of nursing, Jilin University, Changchun, Jilin, China
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Zhang N, Zhou H, Xu Y, Zhang Y, Yu F, Gui L, Zhang Q, Lu Y. Liraglutide promotes UCP1 expression and lipolysis of adipocytes by promoting the secretion of irisin from skeletal muscle cells. Mol Cell Endocrinol 2024; 588:112225. [PMID: 38570133 DOI: 10.1016/j.mce.2024.112225] [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: 12/16/2023] [Revised: 03/27/2024] [Accepted: 03/30/2024] [Indexed: 04/05/2024]
Abstract
Although Liraglutide (Lira) increases serum irisin levels in type 2 diabetes mellitus (T2DM), it is unclear whether it induces expression of uncoupling protein 1 (UCP1) of adipocytes via promoting irisin secretion from skeletal muscle. Male T2DM rats were treated with 0.4 mg/kg/d Lira twice a day for 8 weeks, and the protein expression of phosphorylated AMP kinase (p-AMPK), phosphorylated acetyl-CoA carboxylase 1 (p-ACC1) and UCP1 in white adipose tissues were detected. Differentiated C2C12 cells were treated with palmitic acid (PA) and Lira to detect the secretion of irisin. Differentiated 3T3-L1 cells were treated with irisin, supernatant from Lira-treated C2C12 cells, Compound C or siAMPKα1, the triglyceride (TG) content and the related gene expression were measured. The transcriptome in irisin-treated differentiated 3T3-L1 cells was analyzed. Lira elevated serum irisin levels, decreased the adipocyte size and increased the protein expression of UCP1, p-AMPK and p-ACC1 in WAT. Moreover, it promoted the expression of PGC1α and FNDC5, the secretion of irisin in PA-treated differentiated C2C12 cells. The irisin and supernatant decreased TG synthesis and promoted the expression of browning- and lipolysis-related genes in differentiated 3T3-L1 cells. While Compound C and siAMPKα1 blocked AMPK activities and expression, irisin partly reversed the pathway. Finally, the transcriptome analysis indicated that differently expressed genes are mainly involved in browning and lipid metabolism. Overall, our findings showed that Lira modulated muscle-to-adipose signaling pathways in diabetes via irisin-mediated AMPKα/ACC1/UCP1/PPARα pathway. Our results suggest a new mechanism for the treatment of T2DM by Lira.
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Affiliation(s)
- Nan Zhang
- Department of Endocrinology and Metabolism, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Heng Zhou
- Department of Biochemistry and Molecular Biology, School of Basic Medical Science, Anhui Medical University, Hefei, China
| | - Yijing Xu
- Department of Endocrinology and Metabolism, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Yi Zhang
- Department of Endocrinology and Metabolism, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Fangmei Yu
- Department of Biochemistry and Molecular Biology, School of Basic Medical Science, Anhui Medical University, Hefei, China
| | - Li Gui
- The Comprehensive Laboratory, School of Basic Medical Science, Anhui Medical University, Hefei, China
| | - Qiu Zhang
- Department of Endocrinology and Metabolism, The First Affiliated Hospital of Anhui Medical University, Hefei, China.
| | - Yunxia Lu
- Department of Biochemistry and Molecular Biology, School of Basic Medical Science, Anhui Medical University, Hefei, China; The Comprehensive Laboratory, School of Basic Medical Science, Anhui Medical University, Hefei, China.
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Shen S, Liao Q, Lyu P, Wang J, Lin L. Myricanol prevents aging-related sarcopenia by rescuing mitochondrial dysfunction via targeting peroxiredoxin 5. MedComm (Beijing) 2024; 5:e566. [PMID: 38868327 PMCID: PMC11167181 DOI: 10.1002/mco2.566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2023] [Revised: 02/06/2024] [Accepted: 02/26/2024] [Indexed: 06/14/2024] Open
Abstract
Aging is a process that represents the accumulation of changes in organism overtime. In biological level, accumulations of molecular and cellular damage in aging lead to an increasing risk of diseases like sarcopenia. Sarcopenia reduces mobility, leads to fall-related injuries, and diminishes life quality. Thus, it is meaningful to find out novel therapeutic strategies for sarcopenia intervention that may help the elderly maintain their functional ability. Oxidative damage-induced dysfunctional mitochondria are considered as a culprit of muscle wasting during aging. Herein, we aimed to demonstrate whether myricanol (MY) protects aged mice against muscle wasting through alleviating oxidative damage in mitochondria and identify the direct protein target and its underlying mechanism. We discovered that MY protects aged mice against the loss of muscle mass and strength through scavenging reactive oxygen species accumulation to rebuild the redox homeostasis. Taking advantage of biophysical assays, peroxiredoxin 5 was discovered and validated as the direct target of MY. Through activating peroxiredoxin 5, MY reduced reactive oxygen species accumulation and damaged mitochondrial DNA in C2C12 myotubes. Our findings provide an insight for therapy against sarcopenia through alleviating oxidative damage-induced dysfunctional mitochondria by targeting peroxiredoxin 5, which may contribute an insight for healthy aging.
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Affiliation(s)
- Shengnan Shen
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao‐di Herbs, Artemisinin Research Center, and Institute of Chinese Materia MedicaChina Academy of Chinese Medical SciencesBeijingChina
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical SciencesUniversity of MacauMacauChina
| | - Qiwen Liao
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical SciencesUniversity of MacauMacauChina
- Kobilka Institute of Innovative Drug Discovery, School of MedicineThe Chinese University of Hong KongShenzhenGuangdongChina
| | - Peng Lyu
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical SciencesUniversity of MacauMacauChina
| | - Jigang Wang
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao‐di Herbs, Artemisinin Research Center, and Institute of Chinese Materia MedicaChina Academy of Chinese Medical SciencesBeijingChina
- Shenzhen Institute of Respiratory DiseaseShenzhen People's Hospital (First Affiliated Hospital of South University of Science and Technology of China and Second Affiliated Hospital of Jinan University, China)BeijingChina
- Department of OncologyThe Affiliated Hospital of Southwest Medical UniversityLuzhouChina
| | - Ligen Lin
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical SciencesUniversity of MacauMacauChina
- Department of Pharmaceutical Sciences and Technology, Faculty of Health SciencesUniversity of MacauMacauChina
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14
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Ma L, Bai Y, Liu J, Gong K, He Q, Zhao J, Suo Y, Wang W, Chen G, Lu Z. The therapeutic effects of traditional Chinese medicine on insulin resistance in obese mice by modulating intestinal functions. Heliyon 2024; 10:e30379. [PMID: 38765147 PMCID: PMC11101725 DOI: 10.1016/j.heliyon.2024.e30379] [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: 08/16/2023] [Revised: 04/24/2024] [Accepted: 04/24/2024] [Indexed: 05/21/2024] Open
Abstract
Introduction Obesity, mainly caused by excessive accumulation of visceral fat, excessive fat metabolism will cause hormone secretion imbalance and inflammation and other diseases. is extremely detrimental to human health. Although many treatments are available for obesity, most treatments fail to exert a radical effect or are associated with several side effects. Traditional Chinese medicine (TCM) for regulating the intestinal flora, lipid content and inflammation is considered effective. Based on previous studies, Artemisia capillaris, Astragalus propinquus, Phellodendron amurense, Salvia miltiorrhiza, Poria cocos, and Anemarrhena asphodeloides were selected to prepare an innovative herbal formula. Methods TCM was characterized by UHPLC-Q-Orbitrap-MS. The anti-inflammatory and lipid-lowering effects of the TCM formula prepared were evaluated in a high-fat diet-fed obese mouse model. The effects of the TCM formula on the intestinal flora were also investigated. Results Weights and insulin resistance, as well as inflammation, decreased in the mice after treatment. At the same time, lipid metabolism increased after the mice were gavaged with the TCM formula for 2 weeks. The intestinal motility of the drug administration group was enhanced, with partial restoration of the intestinal flora. Conclusion In summary, our innovative Chinese herbal formula significantly reduced weight, reduced intestinal inflammation, improved intestinal motility, and improved lipid metabolism in obese mice. Furthermore, the innovative formula effectively prevented relevant obesity-induced metastatic diseases in the mice.
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Affiliation(s)
- Lirong Ma
- Yinchuan Traditional Chinese Medicine Hospital, 750001, Ningxia, China
| | - Yongquan Bai
- Department of Bio-pharmacy, Fourth Military Medical University, Xi'an, China
| | - Jun Liu
- Yinchuan Traditional Chinese Medicine Hospital, 750001, Ningxia, China
| | - Kaimin Gong
- Yinchuan Traditional Chinese Medicine Hospital, 750001, Ningxia, China
| | - Qirui He
- Yinchuan Traditional Chinese Medicine Hospital, 750001, Ningxia, China
| | - Jintao Zhao
- Yinchuan Traditional Chinese Medicine Hospital, 750001, Ningxia, China
| | - Yina Suo
- Yinchuan Traditional Chinese Medicine Hospital, 750001, Ningxia, China
| | - Wenwen Wang
- Department of Bio-pharmacy, Fourth Military Medical University, Xi'an, China
| | - Guo Chen
- Translational Medicine Center of Shaanxi Provincial People's Hospital, Xi'an, 710068, China
- Department of Bio-pharmacy, Fourth Military Medical University, Xi'an, China
| | - Zifan Lu
- Translational Medicine Center of Shaanxi Provincial People's Hospital, Xi'an, 710068, China
- Department of Bio-pharmacy, Fourth Military Medical University, Xi'an, China
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Li T, Hu X, Fan L, Yang Y, He K. Myricanol improves metabolic profiles in dexamethasone induced lipid and protein metabolism disorders in mice. Biomed Pharmacother 2024; 174:116557. [PMID: 38583337 DOI: 10.1016/j.biopha.2024.116557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 03/27/2024] [Accepted: 04/04/2024] [Indexed: 04/09/2024] Open
Abstract
Myricanol (MY) is one of the main active components from bark of Myrica Rubra. It is demonstrated that MY rescues dexamethasone (DEX)-induced muscle dysfunction via activating silent information regulator 1 (SIRT1) and increasing adenosine 5'-monophosphate-activated protein kinase (AMPK) phosphorylation. Since SIRT1 and AMPK are widely involved in the metabolism of nutrients, we speculated that MY may exert beneficial effects on DEX-induced metabolic disorders. This study for the first time applied widely targeted metabolomics to investigate the beneficial effects of MY on glucose, lipids, and protein metabolism in DEX-induced metabolic abnormality in mice. The results showed that MY significantly reversed DEX-induced soleus and gastrocnemius muscle weight loss, muscle fiber damage, and muscle strength loss. MY alleviated DEX-induced metabolic disorders by increasing SIRT1 and glucose transporter type 4 (GLUT4) expressions. Additionally, myricanol prevented muscle cell apoptosis and atrophy by inhibiting caspase 3 cleavages and muscle ring-finger protein-1 (MuRF1) expression. Metabolomics showed that MY treatment reversed the serum content of carnitine ph-C1, palmitoleic acid, PS (16:0_17:0), PC (14:0_20:5), PE (P-18:1_16:1), Cer (t18:2/38:1(2OH)), four amino acids and their metabolites, and 16 glycerolipids in DEX mice. Kyoto encyclopedia of genes and genomes (KEGG) and metabolic set enrichment analysis (MSEA) analysis revealed that MY mainly affected metabolic pathways, glycerolipid metabolism, lipolysis, fat digestion and absorption, lipid and atherosclerosis, and cholesterol metabolism pathways through regulation of metabolites involved in glutathione, butanoate, vitamin B6, glycine, serine and threonine, arachidonic acid, and riboflavin metabolism. Collectively, MY can be used as an attractive therapeutic agent for DEX-induced metabolic abnormalities.
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Affiliation(s)
- Tiandan Li
- Hunan Provincial Key Laboratory of Dong Medicine, Hunan Provincial Key Laboratory for Synthetic Biology of Traditional Chinese Medicine, School of Pharmaceutical Science, Hunan University of Medicine, Huaihua, Hunan 418000, China
| | - Xiaochao Hu
- Hunan Provincial Key Laboratory of Dong Medicine, Hunan Provincial Key Laboratory for Synthetic Biology of Traditional Chinese Medicine, School of Pharmaceutical Science, Hunan University of Medicine, Huaihua, Hunan 418000, China
| | - Lingyang Fan
- Hunan Provincial Key Laboratory of Dong Medicine, Hunan Provincial Key Laboratory for Synthetic Biology of Traditional Chinese Medicine, School of Pharmaceutical Science, Hunan University of Medicine, Huaihua, Hunan 418000, China
| | - Yong Yang
- chool of Pharmacy, Hunan University of Traditional Chinese Medicine, Changsha, Hunan 410208, China.
| | - Kai He
- Hunan Provincial Key Laboratory of Dong Medicine, Hunan Provincial Key Laboratory for Synthetic Biology of Traditional Chinese Medicine, School of Pharmaceutical Science, Hunan University of Medicine, Huaihua, Hunan 418000, China.
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16
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Yu W, Yao Y, Ye N, Zhao Y, Ye Z, Wei W, Zhang L, Chen J. The myokine CCL5 recruits subcutaneous preadipocytes and promotes intramuscular fat deposition in obese mice. Am J Physiol Cell Physiol 2024; 326:C1320-C1333. [PMID: 38497114 DOI: 10.1152/ajpcell.00591.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 03/04/2024] [Accepted: 03/04/2024] [Indexed: 03/19/2024]
Abstract
Intramuscular fat (IMF) refers to the lipid stored in skeletal muscle tissue. The number and size of intramuscular adipocytes are the primary factors that regulate IMF content. Intramuscular adipocytes can be derived from either in situ or ectopic migration. In this study, it was discovered that the regulation of IMF levels is achieved through the chemokine (C-C motif) ligand 5 (CCL5)/chemokine (C-C motif) receptor 5 (CCR5) pathway by modulating adipocyte migration. In coculture experiments, C2C12 myotubes were more effective in promoting the migration of 3T3-L1 preadipocytes than C2C12 myoblasts, along with increasing CCL5. Correspondingly, overexpressing the CCR5, one of the receptors of CCL5, in 3T3-L1 preadipocytes facilitated their migration. Conversely, the application of the CCL5/CCR5 inhibitor, MARAVIROC (MVC), reduced this migration. In vivo, transplanted experiments of subcutaneous adipose tissue (SCAT) from transgenic mice expressing green fluorescent protein (GFP) provided evidence that injecting recombinant CCL5 (rCCL5) into skeletal muscle promotes the migration of subcutaneous adipocytes to the skeletal muscle. The level of CCL5 in skeletal muscle increased with obesity. Blocking the CCL5/CCR5 axis by MVC inhibited IMF deposition, whereas elevated skeletal muscle CCL5 promoted IMF deposition in obese mice. These results establish a link between the IMF and the CCL5/CCR5 pathway, which could have a potential application for modulating IMF through adipocyte migration.NEW & NOTEWORTHY C2C12 myotubes attract 3T3-L1 preadipocyte migration regulated by the chemokine (C-C motif) ligand 5 (CCL5)/ chemokine (C-C motif) receptor 5 (CCR5) axis. High levels of skeletal muscle-specific CCL5 promote the migration of subcutaneous adipocytes to skeletal muscle and induce the intramuscular fat (IMF) content.
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Affiliation(s)
- Wensai Yu
- College of Animal Science and TechnologyNanjing Agricultural University, NanjingPeople's Republic of China
| | - Yao Yao
- College of Animal Science and TechnologyNanjing Agricultural University, NanjingPeople's Republic of China
| | - Nanwei Ye
- College of Animal Science and TechnologyNanjing Agricultural University, NanjingPeople's Republic of China
| | - Yuelei Zhao
- College of Animal Science and TechnologyNanjing Agricultural University, NanjingPeople's Republic of China
| | - Zijian Ye
- College of Animal Science and TechnologyNanjing Agricultural University, NanjingPeople's Republic of China
| | - Wei Wei
- College of Animal Science and TechnologyNanjing Agricultural University, NanjingPeople's Republic of China
| | - Lifan Zhang
- College of Animal Science and TechnologyNanjing Agricultural University, NanjingPeople's Republic of China
| | - Jie Chen
- College of Animal Science and TechnologyNanjing Agricultural University, NanjingPeople's Republic of China
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Livshits G, Kalinkovich A. Restoration of epigenetic impairment in the skeletal muscle and chronic inflammation resolution as a therapeutic approach in sarcopenia. Ageing Res Rev 2024; 96:102267. [PMID: 38462046 DOI: 10.1016/j.arr.2024.102267] [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: 11/20/2023] [Revised: 02/17/2024] [Accepted: 03/06/2024] [Indexed: 03/12/2024]
Abstract
Sarcopenia is an age-associated loss of skeletal muscle mass, strength, and function, accompanied by severe adverse health outcomes, such as falls and fractures, functional decline, high health costs, and mortality. Hence, its prevention and treatment have become increasingly urgent. However, despite the wide prevalence and extensive research on sarcopenia, no FDA-approved disease-modifying drugs exist. This is probably due to a poor understanding of the mechanisms underlying its pathophysiology. Recent evidence demonstrate that sarcopenia development is characterized by two key elements: (i) epigenetic dysregulation of multiple molecular pathways associated with sarcopenia pathogenesis, such as protein remodeling, insulin resistance, mitochondria impairments, and (ii) the creation of a systemic, chronic, low-grade inflammation (SCLGI). In this review, we focus on the epigenetic regulators that have been implicated in skeletal muscle deterioration, their individual roles, and possible crosstalk. We also discuss epidrugs, which are the pharmaceuticals with the potential to restore the epigenetic mechanisms deregulated in sarcopenia. In addition, we discuss the mechanisms underlying failed SCLGI resolution in sarcopenia and the potential application of pro-resolving molecules, comprising specialized pro-resolving mediators (SPMs) and their stable mimetics and receptor agonists. These compounds, as well as epidrugs, reveal beneficial effects in preclinical studies related to sarcopenia. Based on these encouraging observations, we propose the combination of epidrugs with SCLI-resolving agents as a new therapeutic approach for sarcopenia that can effectively attenuate of its manifestations.
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Affiliation(s)
- Gregory Livshits
- Department of Morphological Sciences, Adelson School of Medicine, Ariel University, Ariel 4077625, Israel; Department of Anatomy and Anthropology, Faculty of Medical and Health Sciences, School of Medicine, Tel-Aviv University, Tel-Aviv 6905126, Israel.
| | - Alexander Kalinkovich
- Department of Anatomy and Anthropology, Faculty of Medical and Health Sciences, School of Medicine, Tel-Aviv University, Tel-Aviv 6905126, Israel
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18
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Mthembu SXH, Mazibuko-Mbeje SE, Ziqubu K, Muvhulawa N, Marcheggiani F, Cirilli I, Nkambule BB, Muller CJF, Basson AK, Tiano L, Dludla PV. Potential regulatory role of PGC-1α within the skeletal muscle during metabolic adaptations in response to high-fat diet feeding in animal models. Pflugers Arch 2024; 476:283-293. [PMID: 38044359 PMCID: PMC10847180 DOI: 10.1007/s00424-023-02890-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 11/13/2023] [Accepted: 11/23/2023] [Indexed: 12/05/2023]
Abstract
High-fat diet (HFD) feeding in rodents has become an essential tool to critically analyze and study the pathological effects of obesity, including mitochondrial dysfunction and insulin resistance. Peroxisome proliferator-activated receptor γ coactivator-1α (PGC-1α) regulates cellular energy metabolism to influence insulin sensitivity, beyond its active role in stimulating mitochondrial biogenesis to facilitate skeletal muscle adaptations in response to HFD feeding. Here, some of the major electronic databases like PubMed, Embase, and Web of Science were accessed to update and critically discuss information on the potential role of PGC-1α during metabolic adaptations within the skeletal muscle in response to HFD feeding in rodents. In fact, available evidence suggests that partial exposure to HFD feeding (potentially during the early stages of disease development) is associated with impaired metabolic adaptations within the skeletal muscle, including mitochondrial dysfunction and reduced insulin sensitivity. In terms of implicated molecular mechanisms, these negative effects are partially associated with reduced activity of PGC-1α, together with the phosphorylation of protein kinase B and altered expression of genes involving nuclear respiratory factor 1 and mitochondrial transcription factor A within the skeletal muscle. Notably, metabolic abnormalities observed with chronic exposure to HFD (likely during the late stages of disease development) may potentially occur independently of PGC-1α regulation within the muscle of rodents. Summarized evidence suggests the causal relationship between PGC-1α regulation and effective modulations of mitochondrial biogenesis and metabolic flexibility during the different stages of disease development. It further indicates that prominent interventions like caloric restriction and physical exercise may affect PGC-1α regulation during effective modulation of metabolic processes.
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Affiliation(s)
- Sinenhlanhla X H Mthembu
- Biomedical Research and Innovation Platform, South African Medical Research Council, Tygerberg, Cape Town, 7505, South Africa
- Department of Biochemistry, North-West University, Mafikeng Campus, Mmabatho, 2735, South Africa
| | - Sithandiwe E Mazibuko-Mbeje
- Department of Biochemistry, North-West University, Mafikeng Campus, Mmabatho, 2735, South Africa
- Department of Life and Environmental Sciences, Polytechnic University of Marche, 60131, Ancona, Italy
| | - Khanyisani Ziqubu
- Department of Biochemistry, North-West University, Mafikeng Campus, Mmabatho, 2735, South Africa
| | - Ndivhuwo Muvhulawa
- Department of Biochemistry, North-West University, Mafikeng Campus, Mmabatho, 2735, South Africa
| | - Fabio Marcheggiani
- Department of Life and Environmental Sciences, Polytechnic University of Marche, 60131, Ancona, Italy
| | - Ilenia Cirilli
- Department of Clinical Sciences, Section of Biochemistry, Polytechnic University of Marche, 60131, Ancona, Italy
| | - Bongani B Nkambule
- School of Laboratory Medicine and Medical Sciences, University of KwaZulu-Natal, Durban, 4000, South Africa
| | - Christo J F Muller
- Biomedical Research and Innovation Platform, South African Medical Research Council, Tygerberg, Cape Town, 7505, South Africa
- Centre for Cardiometabolic Research Africa (CARMA), Division of Medical Physiology, Stellenbosch University, Tygerberg, Cape Town, 7505, South Africa
- Department of Biochemistry and Microbiology, University of Zululand, KwaDlangezwa, Empangeni, 3886, South Africa
| | - Albertus K Basson
- Department of Biochemistry and Microbiology, University of Zululand, KwaDlangezwa, Empangeni, 3886, South Africa
| | - Luca Tiano
- Department of Life and Environmental Sciences, Polytechnic University of Marche, 60131, Ancona, Italy
| | - Phiwayinkosi V Dludla
- Biomedical Research and Innovation Platform, South African Medical Research Council, Tygerberg, Cape Town, 7505, South Africa.
- Department of Biochemistry and Microbiology, University of Zululand, KwaDlangezwa, Empangeni, 3886, South Africa.
- Cochrane South Africa, South African Medical Research Council, Tygerberg, 7505, South Africa.
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19
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Zhao XY, Wang JQ, Neely GG, Shi YC, Wang QP. Natural compounds as obesity pharmacotherapies. Phytother Res 2024; 38:797-838. [PMID: 38083970 DOI: 10.1002/ptr.8083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2023] [Revised: 10/20/2023] [Accepted: 11/22/2023] [Indexed: 02/15/2024]
Abstract
Obesity has become a serious global public health problem, affecting over 988 million people worldwide. Nevertheless, current pharmacotherapies have proven inadequate. Natural compounds have garnered significant attention due to their potential antiobesity effects. Over the past three decades, ca. 50 natural compounds have been evaluated for the preventive and/or therapeutic effects on obesity in animals and humans. However, variations in the antiobesity efficacies among these natural compounds have been substantial, owing to differences in experimental designs, including variations in animal models, dosages, treatment durations, and administration methods. The feasibility of employing these natural compounds as pharmacotherapies for obesity remained uncertain. In this review, we systematically summarized the antiobesity efficacy and mechanisms of action of each natural compound in animal models. This comprehensive review furnishes valuable insights for the development of antiobesity medications based on natural compounds.
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Affiliation(s)
- Xin-Yuan Zhao
- Laboratory of Metabolism and Aging, School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Shenzhen, China
| | - Ji-Qiu Wang
- Department of Endocrinology and Metabolism, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - G Gregory Neely
- The Dr. John and Anne Chong Laboratory for Functional Genomics, Charles Perkins Centre and School of Life & Environmental Sciences, The University of Sydney, Sydney, NSW, Australia
| | - Yan-Chuan Shi
- Diabetes and Metabolism Division, Garvan Institute of Medical Research, Darlinghurst, Sydney, NSW, Australia
- St Vincent's Clinical School, Faculty of Medicine, University of New South Wales, Sydney, NSW, Australia
| | - Qiao-Ping Wang
- Laboratory of Metabolism and Aging, School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Shenzhen, China
- Medical Center for Comprehensive Weight Control, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Diabetology, Guangzhou Key Laboratory of Mechanistic and Translational Obesity Research, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
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20
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Lin X, Zhang Y, Zhou X, Lai C, Dong Y, Zhang W. Inhibition of soluble epoxide hydrolase relieves adipose inflammation via modulating M1/M2 macrophage polarization to alleviate airway inflammation and hyperresponsiveness in obese asthma. Biochem Pharmacol 2024; 219:115948. [PMID: 38042452 DOI: 10.1016/j.bcp.2023.115948] [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: 07/10/2023] [Revised: 11/13/2023] [Accepted: 11/27/2023] [Indexed: 12/04/2023]
Abstract
Obesityincreasestheriskofasthma and tends to enhance the asthma severity, however, its mechanism is not fully elucidated. The expansion of adipose tissue in obesity is accompanied by the accumulation of adiposetissue macrophages (ATMs) that could contribute to alow-gradeinflammationstate. In this study, we researched the regulatory role of soluble epoxide hydrolase (sEH) on ATMs-mediated inflammation in obese asthma. A mouse model of obese asthma that induced by high-fat diet (HFD) feeding and Ovalbumin (OVA) sensitization was employed to investigate the effects of AUDA, a sEH inhibitor (sEHi), on airway inflammation, airway hyperresponsivenesss (AHR) and pulmonary pathological changes. In addition to alleviating the key features of asthma in obese mice, we confirmed that AUDA reduced the expression of pro-inflammatory factor, such as interleukin-1β (IL-1β), interleukin-6 (IL-6) and tumornecrosisfactor-α (TNF-α) in adipose tissue and serum. Moreover, AUDA could remarkedly reduce Lipopolysaccharide (LPS)-elevated IL-1β, IL-6 and TNF-α in RAW264.7 macrophage cells. Mechanistically, AUDA effectively reduced inflammation in adipose tissue, resulting in reduced systemic inflammation, by inhibiting M1-type macrophage polarization and promoting M2-type macrophage polarization. These processes were found to act through ERK1/2 signaling pathway. Herein, we proved that inhibition of sEH expression helped to mitigate multiple parameters of obese asthma by regulating the balance of M1/M2 macrophage polarization in adipose tissue.
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Affiliation(s)
- Xixi Lin
- Department of Pharmacy, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Yuanyuan Zhang
- Department of Pediatric Allergy and Immunology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Xinyu Zhou
- Department of Pediatric Allergy and Immunology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Chuqiao Lai
- Department of Pediatric Allergy and Immunology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Yaoyao Dong
- Department of Pharmacy, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Weixi Zhang
- Department of Pediatric Allergy and Immunology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.
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21
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Feng C, Jiang Y, Wu G, Shi Y, Ge Y, Li B, Cheng X, Tang X, Zhu J, Le G. Dietary Methionine Restriction Improves Gastrocnemius Muscle Glucose Metabolism through Improved Insulin Secretion and H19/IRS-1/Akt Pathway in Middle-Aged Mice. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:5655-5666. [PMID: 36995760 DOI: 10.1021/acs.jafc.2c08373] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Methionine restriction (MR) improves glucose metabolism. In skeletal muscle, H19 is a key regulator of insulin sensitivity and glucose metabolism. Therefore, this study aims to reveal the underlying mechanism of H19 upon MR on glucose metabolism in skeletal muscle. Middle-aged mice were fed MR diet for 25 weeks. Mouse islets β cell line β-TC6 cells and mouse myoblast cell line C2C12 cells were used to establish the apoptosis or insulin resistance model. Our findings showed that MR increased B-cell lymphoma-2 (Bcl-2) expression, deceased Bcl-2 associated X protein (Bax), cleaved cysteinyl aspartate-specific proteinase-3 (Caspase-3) expression in pancreas, and promoted insulin secretion of β-TC6 cells. Meanwhile, MR increased H19 expression, insulin Receptor Substrate-1/insulin Receptor Substrate-2 (IRS-1/IRS-2) value, protein Kinase B (Akt) phosphorylation, glycogen synthase kinase-3β (GSK3β) phosphorylation, and hexokinase 2 (HK2) expression in gastrocnemius muscle and promoted glucose uptake in C2C12 cells. But these results were reversed after H19 knockdown in C2C12 cells. In conclusion, MR alleviates pancreatic apoptosis and promotes insulin secretion. And MR enhances gastrocnemius muscle insulin-dependent glucose uptake and utilization via the H19/IRS-1/Akt pathway, thereby ameliorating blood glucose disorders and insulin resistance in high-fat-diet (HFD) middle-aged mice.
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Affiliation(s)
- Chuanxing Feng
- Center for Food Nutrition and Functional Food Engineering, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Yuge Jiang
- Center for Food Nutrition and Functional Food Engineering, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Guoqing Wu
- School of Public Health, School of Medicine, Ningbo University, Ningbo, Zhejiang 315211, China
| | - Yonghui Shi
- Center for Food Nutrition and Functional Food Engineering, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Yueting Ge
- College of Life Science, Xinyang Normal University, Xinyang 464000, China
| | - Bowen Li
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Xiangrong Cheng
- Center for Food Nutrition and Functional Food Engineering, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Xue Tang
- Center for Food Nutrition and Functional Food Engineering, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Jianjin Zhu
- Center for Food Nutrition and Functional Food Engineering, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Guowei Le
- Center for Food Nutrition and Functional Food Engineering, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China
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22
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Lyu P, Li S, Han Y, Shen S, Feng Z, Hao P, Li Z, Lin L. Affinity-based protein profiling-driven discovery of myricanol as a Nampt activator. Bioorg Chem 2023; 133:106435. [PMID: 36841049 DOI: 10.1016/j.bioorg.2023.106435] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 02/06/2023] [Accepted: 02/15/2023] [Indexed: 02/21/2023]
Abstract
Herein, we synthesized an affinity-based probe of myricanol (pMY) with a photo-affinity cross-linker to initiate a bioconjugation reaction, which was applied for target identification in live C2C12 myotubes. Pull-down of biotinylated pMY coupled with mass spectroscopy and Western blotting revealed that pMY can bind with nicotinamide phosphoribosyltransferase (Nampt), a rate-limiting enzyme in the nicotinamide adenine dinucleotide salvage pathway. Cellular thermal shift assay, drug affinity responsive target stability assay and recombinant protein labeling further validated the direct interaction between myricanol and Nampt. Myricanol did not affect the protein expression of Nampt, but enhanced its activity. Knock-down of Nampt totally abolished the promoting effect of myricanol on insulin-stimulated glucose uptake in C2C12 myotubes. Taken together, myricanol sensitizes insulin action in myotubes through binding with and activating Nampt.
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Affiliation(s)
- Peng Lyu
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macau 999078, China
| | - Shengrong Li
- International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development (MOE), MOE Key Laboratory of Tumor Molecular Biology, School of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Ying Han
- School of Life Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Shanghai 201210, China
| | - Shengnan Shen
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macau 999078, China
| | - Zheling Feng
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macau 999078, China
| | - Piliang Hao
- School of Life Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Shanghai 201210, China.
| | - Zhengqiu Li
- International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development (MOE), MOE Key Laboratory of Tumor Molecular Biology, School of Pharmacy, Jinan University, Guangzhou 510632, China.
| | - Ligen Lin
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macau 999078, China.
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23
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Feng Z, Chen J, Chen C, Feng L, Wang R, Zhu J, Lou R, Liu J, Ye Y, Lin L. Bioactivity-based molecular networking-guided identification of guttiferone J from Garcinia cambogia as an anti-obesity candidate. Br J Pharmacol 2023; 180:589-608. [PMID: 36321884 DOI: 10.1111/bph.15979] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Revised: 10/03/2022] [Accepted: 10/20/2022] [Indexed: 11/06/2022] Open
Abstract
BACKGROUND AND PURPOSE Pharmacological intervention to induce browning of white adipose tissue provides a promising anti-obesity therapy. The fruits of Garcinia cambogia (Clusiaceae) have been widely applied to manage body weight; however, the chemical principles remain unclear. The current study aims to discover browning inducers from the fruits of G. cambogia and investigate the underlying mechanisms. EXPERIMENTAL APPROACH The bioactivity-based molecular networking and Oil Red O staining on 3T3-L1 and C3H10T1/2 adipocytes were applied for guided isolation. High-fat diet-induced obese mice were recruited to evaluate the anti-obesity activity. KEY RESULTS The bioactivity-based molecular networking-guided isolation yielded several polycyclic polyprenylated acylphloroglucinols from the fruits of G. cambogia with lipid-lowering effect in adipocytes, including guttiferone J (GOJ), garcinol and 14-deoxygarcinol. As the most potent one, GOJ (10 μM) reduced lipid accumulation by 70% and 76% in 3T3-L1 and C3H10T1/2 adipocytes, respectively. Furthermore, GOJ (2.5-10 μM) increased the expression of the deacetylase sirtuin 3 (SIRT3) and activated it, which, in turn, reduced the acetylation level of PPARγ coactivator-1α to boost mitochondrial biogenesis and promoted uncoupling protein 1 expression to enhance thermogenesis, resulting in browning of adipocytes. In high-fat diet-induced-obese mice, GOJ (10 and 20 mg·kg-1 ·day-1 for 12 weeks) protected against adiposity, hyperlipidaemia, insulin resistance and liver lipotoxicity, through boosting SIRT3-mediated browning of inguinal adipose tissue. CONCLUSION AND IMPLICATIONS GOJ represents a new scaffold of thermogenic inducer, which is responsible for the anti-obesity property of G. cambogia and can be further developed as a candidate for treating obesity and its related disorders.
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Affiliation(s)
- Zheling Feng
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Jiali Chen
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Cheng Chen
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Lu Feng
- State Key Laboratory of Drug Research and Natural Products Chemistry Department, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
| | - Rui Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Jianzhong Zhu
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Ruohan Lou
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Jia Liu
- State Key Laboratory of Drug Research and Natural Products Chemistry Department, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
| | - Yang Ye
- State Key Laboratory of Drug Research and Natural Products Chemistry Department, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
| | - Ligen Lin
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China.,Department of Pharmaceutical Sciences and Technology, Faculty of Health Sciences, University of Macau, Macau, China
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24
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Zhang J, Chen B, Zou K. Effect of ketogenic diet on exercise tolerance and transcriptome of gastrocnemius in mice. Open Life Sci 2023; 18:20220570. [PMID: 36852401 PMCID: PMC9961969 DOI: 10.1515/biol-2022-0570] [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: 09/26/2022] [Revised: 12/28/2022] [Accepted: 01/14/2023] [Indexed: 02/25/2023] Open
Abstract
Ketogenic diet (KD) has been proven to be an optional avenue in weight control. However, the impacts of KD on muscle strength and exercise endurance remain unclear. In this study, mice were randomly allocated to normal diet and KD groups to assess their exercise tolerance and transcriptomic changes of the gastrocnemius. KD suppressed body-weight and glucose levels and augmented blood ketone levels of mice. The total cholesterol, free fatty acids, and β-hydroxybutyric acid levels were higher and triglycerides and aspartate aminotransferase levels were lower in KD group. There was no notable difference in running distance/time and weight-bearing swimming time between the two groups. Furthermore, KD alleviated the protein levels of PGC-1α, p62, TnI FS, p-AMPKα, and p-Smad3, while advancing the LC3 II and TnI SS protein levels in the gastrocnemius tissues. RNA-sequencing found that 387 differentially expressed genes were filtered, and Cpt1b, Acadl, Eci2, Mlycd, Pdk4, Ptprc, C1qa, Emr1, Fcgr3, and Ctss were considered to be the hub genes. Our findings suggest that KD effectively reduced body weight but did not affect skeletal muscle strength and exercise endurance via AMPK/PGC-1α, Smad3, and p62/LC3 signaling pathways and these hub genes could be potential targets for muscle function in KD-treated mice.
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Affiliation(s)
- Jie Zhang
- Department of Police Physical Training, Zhejiang Police Collage, Zhejiang, China
| | - Bo Chen
- Department of Physical Education, Beijing University of Chemical Technology, 15 North Third Ring East Road, Chaoyang District, Beijing, 100029, China
| | - Ke Zou
- School of Physical Education, Huaibei Normal University, Anhui, China
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25
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Wang YL, Lin SX, Wang Y, Liang T, Jiang T, Liu P, Li XY, Lang DQ, Liu Q, Shen CY. p-Synephrine ameliorates alloxan-induced diabetes mellitus through inhibiting oxidative stress and inflammation via suppressing the NF-kappa B and MAPK pathways. Food Funct 2023; 14:1971-1988. [PMID: 36723106 DOI: 10.1039/d2fo03003a] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Oxidative stress and inflammation play important roles in the development of diabetes mellitus. p-Synephrine, the primary pharmacologically active protoalkaloid in Citrus species, has been popularly consumed as a dietary supplement for weight loss management. However, the effects of p-synephrine on diabetes mellitus and the action mechanisms have not been clearly elucidated. In this study, the in vitro antioxidant effects of p-synephrine were evaluated. The data showed that p-synephrine treatment exhibited significant scavenging effects against DPPH, ABTS and OH radicals and showed high reducing power. Diabetic mice were developed by alloxan injection, followed by p-synephrine administration to investigate its hypoglycemic effects in vivo. The results showed that p-synephrine intervention significantly prevented alloxan-induced alteration in body weight, organ indexes, serum uric acid content and serum creatinine content. Meanwhile, p-synephrine application significantly improved the lipid profiles, superoxide dismutase (SOD) and catalase (CAT) activities and glutathione (GSH) contents in the serum and kidneys of diabetic mice and reduced the malondialdehyde (MDA) content in the serum of diabetic mice. Further assays suggested that p-synephrine treatment improved alloxan-induced decreases of glucose tolerance and insulin sensitivity. Also, p-synephrine supplementation altered histopathological changes in the kidneys and interscapular brown adipose tissues in diabetic mice. In addition, p-synephrine administration inhibited renal inflammation through suppressing tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6) and interleukin-1β (IL-1β) gene expression levels, as well as CD45 expression levels. The anti-inflammatory effects were probably involved in the regulation of nuclear factor-κB (NF-κB) activation and mitogen-activated protein kinase (MAPK) phosphorylation. In conclusion, p-synephrine application significantly ameliorated alloxan-induced diabetes mellitus by inhibiting oxidative stress via suppressing the NF-κB and MAPK pathways.
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Affiliation(s)
- Ya-Li Wang
- School of Public Health, Southern Medical University, Guangzhou 510515, P. R. China. .,School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, P. R. China. .,Guangdong Provincial Key Laboratory of Chinese Medicine Pharmaceutics, Southern Medical University, Guangzhou 510515, P. R. China.,Guangdong Provincial Engineering Laboratory of Chinese Medicine Preparation Technology, Guangzhou 510515, P. R. China
| | - Song-Xia Lin
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, P. R. China. .,Guangdong Provincial Key Laboratory of Chinese Medicine Pharmaceutics, Southern Medical University, Guangzhou 510515, P. R. China.,Guangdong Provincial Engineering Laboratory of Chinese Medicine Preparation Technology, Guangzhou 510515, P. R. China
| | - Yuan Wang
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, P. R. China. .,Guangdong Provincial Key Laboratory of Chinese Medicine Pharmaceutics, Southern Medical University, Guangzhou 510515, P. R. China.,Guangdong Provincial Engineering Laboratory of Chinese Medicine Preparation Technology, Guangzhou 510515, P. R. China
| | - Tao Liang
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, P. R. China. .,Guangdong Provincial Key Laboratory of Chinese Medicine Pharmaceutics, Southern Medical University, Guangzhou 510515, P. R. China.,Guangdong Provincial Engineering Laboratory of Chinese Medicine Preparation Technology, Guangzhou 510515, P. R. China
| | - Tao Jiang
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, P. R. China. .,Guangdong Provincial Key Laboratory of Chinese Medicine Pharmaceutics, Southern Medical University, Guangzhou 510515, P. R. China.,Guangdong Provincial Engineering Laboratory of Chinese Medicine Preparation Technology, Guangzhou 510515, P. R. China
| | - Peng Liu
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, P. R. China. .,Guangdong Provincial Key Laboratory of Chinese Medicine Pharmaceutics, Southern Medical University, Guangzhou 510515, P. R. China.,Guangdong Provincial Engineering Laboratory of Chinese Medicine Preparation Technology, Guangzhou 510515, P. R. China
| | - Xiao-Yi Li
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, P. R. China. .,Guangdong Provincial Key Laboratory of Chinese Medicine Pharmaceutics, Southern Medical University, Guangzhou 510515, P. R. China.,Guangdong Provincial Engineering Laboratory of Chinese Medicine Preparation Technology, Guangzhou 510515, P. R. China
| | - Deng-Qin Lang
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, P. R. China. .,Guangdong Provincial Key Laboratory of Chinese Medicine Pharmaceutics, Southern Medical University, Guangzhou 510515, P. R. China.,Guangdong Provincial Engineering Laboratory of Chinese Medicine Preparation Technology, Guangzhou 510515, P. R. China
| | - Qiang Liu
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, P. R. China. .,Guangdong Provincial Key Laboratory of Chinese Medicine Pharmaceutics, Southern Medical University, Guangzhou 510515, P. R. China.,Guangdong Provincial Engineering Laboratory of Chinese Medicine Preparation Technology, Guangzhou 510515, P. R. China
| | - Chun-Yan Shen
- School of Public Health, Southern Medical University, Guangzhou 510515, P. R. China. .,School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, P. R. China. .,Guangdong Provincial Key Laboratory of Chinese Medicine Pharmaceutics, Southern Medical University, Guangzhou 510515, P. R. China.,Guangdong Provincial Engineering Laboratory of Chinese Medicine Preparation Technology, Guangzhou 510515, P. R. China
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26
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Chen JL, Feng ZL, Zhou F, Lou RH, Peng C, Ye Y, Lin LG. 14-Deoxygarcinol improves insulin sensitivity in high-fat diet-induced obese mice via mitigating NF-κB/Sirtuin 2-NLRP3-mediated adipose tissue remodeling. Acta Pharmacol Sin 2023; 44:434-445. [PMID: 35945312 PMCID: PMC9889782 DOI: 10.1038/s41401-022-00958-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 07/12/2022] [Indexed: 02/04/2023] Open
Abstract
Interleukin (IL)-1β is a culprit of adipose tissue inflammation, which in turn causes systematic inflammation and insulin resistance in obese individuals. IL-1β is mainly produced in monocytes and macrophages and marginally in adipocytes, through cleavage of the inactive pro-IL-1β precursor by caspase-1, which is activated via the NLRP3 inflammasome complex. The nuclear factor-κB (NF-κB) transcription factor is the master regulator of inflammatory responses. Brindle berry (Garcinia cambogia) has been widely used as health products for treating obesity and related metabolic disorders, but its active principles remain unclear. We previously found a series of polyisoprenylated benzophenones from brindle berry with anti-inflammatory activities. In this study we investigated whether 14-deoxygarcinol (DOG), a major polyisoprenylated benzophenone from brindle berry, alleviated adipose tissue inflammation and insulin sensitivity in high-fat diet fed mice. The mice were administered DOG (2.5, 5 mg · kg-1 · d-1, i.p.) for 4 weeks. We showed that DOG injection dose-dependently improved insulin resistance and hyperlipidemia, but not adiposity in high-fat diet-fed mice. We found that DOG injection significantly alleviated adipose tissue inflammation via preventing macrophage infiltration and pro-inflammatory polarization of macrophages, and adipose tissue fibrosis via reducing the abnormal deposition of extracellular matrix. In LPS plus nigericin-stimulated THP-1 macrophages, DOG (1.25, 2.5, 5 μM) dose-dependently suppressed the activation of NLRP3 inflammasome and NF-κB signaling pathway. We demonstrated that DOG bound to and activated the deacetylase Sirtuin 2, which in turn deacetylated and inactivated NLRP3 inflammasome to reduce IL-1β secretion. Moreover, DOG (1.25, 2.5, 5 μM) dose-dependently mitigated inflammatory responses in macrophage conditioned media-treated adipocytes and suppressed macrophage migration toward adipocytes. Taken together, DOG might be a drug candidate to treat metabolic disorders through modulation of adipose tissue remodeling.
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Affiliation(s)
- Jia-Li Chen
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China
| | - Zhe-Ling Feng
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China
- State Key Laboratory of Drug Research and Natural Products Chemistry Department, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China
| | - Fei Zhou
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China
| | - Ruo-Han Lou
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China
| | - Cheng Peng
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 610075, China
| | - Yang Ye
- State Key Laboratory of Drug Research and Natural Products Chemistry Department, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China
| | - Li-Gen Lin
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China.
- Department of Pharmaceutical Sciences, Faculty of Health Sciences, University of Macau, Macao, China.
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27
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Yu M, Wu S, Gong C, Chen L. Neuregulin-1β increases glucose uptake and promotes GLUT4 translocation in palmitate-treated C2C12 myotubes by activating PI3K/AKT signaling pathway. Front Pharmacol 2023; 13:1066279. [PMID: 36703726 PMCID: PMC9871240 DOI: 10.3389/fphar.2022.1066279] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Accepted: 12/26/2022] [Indexed: 01/12/2023] Open
Abstract
Insulin resistance (IR) is a feature of type 2 diabetes (T2DM) accompanied by reduced glucose uptake and glucose transporter 4 (GLUT4) translocation by skeletal muscle. Neuregulin-1β (NRG-1β) is essential for myogenesis and the regulation of skeletal muscle metabolism. Neuregulin-1β increases insulin sensitivity, promotes glucose uptake and glucose translocation in normal skeletal muscle. Here, we explored whether Neuregulin-1β increased glucose uptake and GLUT4 translocation in palmitate (PA)-treated C2C12 myotubes. After C2C12 myoblasts differentiated into myotubes, we used palmitate to induce cellular insulin resistance. Cells were incubated with or without Neuregulin-1β and glucose uptake was determined using the 2-NBDG assay. The expression level of glucose transporter 4 (GLUT4) was measured via immunofluorescence and Western blotting. MK2206, an inhibitor of AKT, was employed to reveal the important role played by AKT signaling in PA-treated C2C12 myotubes. We then established an animal model with T2DM and evaluated the effects of Neuregulin-1β on body weight and the blood glucose level. The GLUT4 level in the gastrocnemius of T2DM mice was also measured. NRG-1β not only increased glucose uptake by PA-treated myotubes but also promoted GLUT4 translocation to the plasma membrane. The effect of NRG-1β on PA-treated C2C12 myotubes was associated with AKT activation. In T2DM mice, Neuregulin-1β not only improved diabetes-induced weight loss and diabetes-induced hyperglycemia, but also promoted GLUT4 translocation in the gastrocnemius. In summary, Neuregulin-1β increased glucose uptake and promoted translocation of GLUT4 to the plasma membrane in PA-treated C2C12 myotubes by activating the PI3K/AKT signaling pathway.
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Affiliation(s)
| | | | - Chao Gong
- *Correspondence: Chao Gong, ; Lianhua Chen,
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28
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Wei J, Wang B, Chen Y, Wang Q, Ahmed AF, Cui L, Xi X, Kang W. Effects of two triterpenoids from Nigella sativa seeds on insulin resistance of 3T3-L1 adipocytes. Front Nutr 2022; 9:995550. [PMID: 36082026 PMCID: PMC9445806 DOI: 10.3389/fnut.2022.995550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Accepted: 08/09/2022] [Indexed: 11/13/2022] Open
Abstract
Insulin resistance (IR) is a physiological abnormality that occurs when insulin fails to activate the signal transduction pathway in target organs. It was found that supplementation of Nigella sativa seeds with oral antidiabetic medicines helps improve blood glucose control by enhanced β cells activity and alleviation of IR. However, the activities and related mechanisms of phytochemicals from N. sativa seeds have not been thoroughly explored. In this study, the effects of two triterpenoids, 3-O-[β-D-xylopyranose-(1→3)-α-L-rhamnose-(1→2)-α-L-arabinose]-28-O-[α-L-rhamnose-(1→4)-β-D-glucopyranose-L-(1→6)-β-D-glucopyranose]-hederagenin (Hxrarg) and 3-O-[β-D-xylopyranose-(1→3)-α-L-rhamnose-(1→2)-α-L-arabinose]-hederagenin (Hxra), on IR were studied by 3T3-L1 adipocytes model. The results demonstrated that Hxrarg and Hxra inhibited maturation of 3T3-L1 preadipocytes, dramatically stimulated glucose uptake of IR-3T3-L1 adipocytes, promoted transcription of IRS, AKT, PI-3K, and GLUT4 mRNA. Western Blot results suggested that Hxrarg and Hxra were able to markedly up-regulate expression of p-IRS, p-AKT, PI-3K, and GLUT4 proteins. These findings could provide a basic foundation for the continued development and application of N. sativa in medicine and functional foods.
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Affiliation(s)
- Jinfeng Wei
- National R&D Center for Edible Fungus Processing Technology, Henan University, Kaifeng, China
- Shenzhen Research Institute of Henan University, Shenzhen, China
| | - Baoguang Wang
- National R&D Center for Edible Fungus Processing Technology, Henan University, Kaifeng, China
| | - Yixiao Chen
- National R&D Center for Edible Fungus Processing Technology, Henan University, Kaifeng, China
| | - Qiuyi Wang
- National R&D Center for Edible Fungus Processing Technology, Henan University, Kaifeng, China
| | - Adel F. Ahmed
- National R&D Center for Edible Fungus Processing Technology, Henan University, Kaifeng, China
- Medicinal and Aromatic Plants Researches Department, Horticulture Research Institute, Agricultural Research Center, Giza, Egypt
| | - Lili Cui
- National R&D Center for Edible Fungus Processing Technology, Henan University, Kaifeng, China
| | - Xuefeng Xi
- National R&D Center for Edible Fungus Processing Technology, Henan University, Kaifeng, China
- College of Physical Education, Henan University, Kaifeng, China
| | - Wenyi Kang
- National R&D Center for Edible Fungus Processing Technology, Henan University, Kaifeng, China
- Joint International Research Laboratory of Food & Medicine Resource Function, Kaifeng, China
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29
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Kou G, Li P, Shi Y, Traore SS, Shi X, Amoah AN, Cui Z, Lyu Q. Sesamin Activates Skeletal Muscle FNDC5 Expression and Increases Irisin Secretion via the SIRT1 Signaling Pathway. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:7704-7715. [PMID: 35708276 DOI: 10.1021/acs.jafc.2c02794] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Sesamin, a major lignin mainly found in sesame (Sesamum indicum) oil and sesame seeds, has been demonstrated to possess lipoclasis-promoting, antiobesity, and antidiabetic effects. Irisin is a newly discovered myokine that has attracted great interest as a key target to prevent/treat obesity and its related metabolic diseases. However, the effect and potential mechanism of sesamin on FNDC5/irisin are still vacant. In this study, we showed that sesamin treatment increased FNDC5/irisin activation and regulated SIRT1, PGC-1α, and p-SMAD3/SMAD3 expression in C2C12 cells. By using specific inhibitors and lentivirus in C2C12 cells, we found that the SIRT1/SMAD3 axis plays an important role in sesamin regulated FNDC5/irisin activation. We also found that sesamin treatment activated FNDC5 expression and regulated the SIRT1/SMAD3 signaling axis in mice's skeletal muscle. What is more, by the high-fat diet induced obese model, we further showed that sesamin improved the high-fat diet induced decrease in irisin production and secretion, which results in an improvement of body weight gain and skeletal muscle dysfunction. Our results suggested that sesamin could activate FNDC5 expression and stimulate irisin secretion through the SIRT1 pathway both in vitro and in vivo, which may provide a new strategy for preventing and improving irisin deficiency related diseases.
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Affiliation(s)
- Guangning Kou
- Centre of Sport Nutrition and Health, School of Physical Education, Zhengzhou University, Zhengzhou 450001, China
- Department of Nutrition and Food Hygiene, School of Public Health, Zhengzhou University, Zhengzhou 450001, China
| | - Peiyuan Li
- Centre of Sport Nutrition and Health, School of Physical Education, Zhengzhou University, Zhengzhou 450001, China
- Department of Nutrition and Food Hygiene, School of Public Health, Zhengzhou University, Zhengzhou 450001, China
| | - Yanfei Shi
- Centre of Sport Nutrition and Health, School of Physical Education, Zhengzhou University, Zhengzhou 450001, China
| | - Stanislav Seydou Traore
- Department of Nutrition and Food Hygiene, School of Public Health, Zhengzhou University, Zhengzhou 450001, China
| | - Xiaoyang Shi
- Centre of Sport Nutrition and Health, School of Physical Education, Zhengzhou University, Zhengzhou 450001, China
| | - Adwoa Nyantakyiwaa Amoah
- Department of Nutrition and Food Hygiene, School of Public Health, Zhengzhou University, Zhengzhou 450001, China
| | - Zhenwei Cui
- Centre of Sport Nutrition and Health, School of Physical Education, Zhengzhou University, Zhengzhou 450001, China
| | - Quanjun Lyu
- Department of Nutrition, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450001, China
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30
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Gong X, Zheng M, Zhang J, Ye Y, Duan M, Chamba Y, Wang Z, Shang P. Transcriptomics-Based Study of Differentially Expressed Genes Related to Fat Deposition in Tibetan and Yorkshire Pigs. Front Vet Sci 2022; 9:919904. [PMID: 35754534 PMCID: PMC9218471 DOI: 10.3389/fvets.2022.919904] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Accepted: 05/09/2022] [Indexed: 12/15/2022] Open
Abstract
Fat deposition traits are one of the key factors in pig production and breeding. The fat deposition capacity of pigs mainly affects the quality of pork and pig productivity. The aim of this study was to analyze the differential expression of mRNA levels in dorsal adipose tissue of Tibetan and York pigs at different growth stages using transcriptomic data to estimate key genes that regulate fat deposition in pigs. The results showed that a total of 32,747 positively expressed genes were present in the dorsal adipose tissue of the two breeds. Differentially expressed gene (DEG) screening of multiple combinations between the two breeds yielded 324 DEGS. Gene ontology (GO) biofunctional enrichment and Kyoto Encyclopedia of Genes and Genomes (KEGG) analyses showed that these DEGS were mainly involved in lipid metabolic pathways, steroid biosynthetic pathways and lipid biosynthetic processes, sterol biosynthetic processes, brown adipocyte differentiation, and other pathways related to lipid deposition and metabolism. The results showed that ACACA, SLC2A4 and THRSP genes positively regulated the lipid deposition ability and CHPT1 gene negatively regulated the lipid deposition ability in pigs. The results of this experiment suggest a theoretical basis for further studies on the regulatory mechanisms of fat deposition in pigs.
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Affiliation(s)
- Xinglong Gong
- Tibet Agriculture and Animal Husbandry College, Tibet, China.,The Provincial and Ministerial Co-founded Collaborative Innovation Center for R&D in Tibet Characteristic Agricultural and Animal Husbandry Resources, Tibet, China
| | - Min Zheng
- Tibet Agriculture and Animal Husbandry College, Tibet, China.,The Provincial and Ministerial Co-founded Collaborative Innovation Center for R&D in Tibet Characteristic Agricultural and Animal Husbandry Resources, Tibet, China
| | - Jian Zhang
- Tibet Agriculture and Animal Husbandry College, Tibet, China.,The Provincial and Ministerial Co-founded Collaborative Innovation Center for R&D in Tibet Characteristic Agricultural and Animal Husbandry Resources, Tibet, China
| | - Yourong Ye
- Tibet Agriculture and Animal Husbandry College, Tibet, China.,The Provincial and Ministerial Co-founded Collaborative Innovation Center for R&D in Tibet Characteristic Agricultural and Animal Husbandry Resources, Tibet, China
| | - Mengqi Duan
- Tibet Agriculture and Animal Husbandry College, Tibet, China.,The Provincial and Ministerial Co-founded Collaborative Innovation Center for R&D in Tibet Characteristic Agricultural and Animal Husbandry Resources, Tibet, China
| | - Yangzom Chamba
- Tibet Agriculture and Animal Husbandry College, Tibet, China.,The Provincial and Ministerial Co-founded Collaborative Innovation Center for R&D in Tibet Characteristic Agricultural and Animal Husbandry Resources, Tibet, China
| | - Zhongbin Wang
- Tibet Agriculture and Animal Husbandry College, Tibet, China.,The Provincial and Ministerial Co-founded Collaborative Innovation Center for R&D in Tibet Characteristic Agricultural and Animal Husbandry Resources, Tibet, China
| | - Peng Shang
- Tibet Agriculture and Animal Husbandry College, Tibet, China.,The Provincial and Ministerial Co-founded Collaborative Innovation Center for R&D in Tibet Characteristic Agricultural and Animal Husbandry Resources, Tibet, China
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31
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Wu J, Du J, Li Z, He W, Wang M, Jin M, Yang L, Liu H. Pentamethylquercetin Regulates Lipid Metabolism by Modulating Skeletal Muscle-Adipose Tissue Crosstalk in Obese Mice. Pharmaceutics 2022; 14:pharmaceutics14061159. [PMID: 35745732 PMCID: PMC9227162 DOI: 10.3390/pharmaceutics14061159] [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: 04/04/2022] [Revised: 05/21/2022] [Accepted: 05/27/2022] [Indexed: 01/27/2023] Open
Abstract
Irisin is an exercise-induced hormone that regulates lipid metabolism. The present study investigates whether the anti-obesity effect of the natural flavonoid pentamethylquercetin (PMQ) is related to irisin secretion from skeletal muscle in whole animals and cultured cells. Obese mice induced by monosodium glutamate were administered oral PMQ to determine blood irisin level and in vivo parameters of lipid metabolism, and cultured mouse C2C12 myoblasts and 3T3-L1 preadipocytes were employed to investigate the related molecular identities. PMQ increased circulating irisin and decreased bodyweight, insulin, and lipid levels accompanied with increasing brown-like adipocyte formation in obese mice. The brown adipocyte marker uncoupling protein 1 (UCP-1) and other brown-like adipocyte-specific genes and/or markers were increased in mouse white fat tissue, while PMQ treatment reversed the above changes. PMQ also dose-dependently increased the reduced levels of AMP-activated protein kinase (AMPK), peroxisome proliferator-activated receptor-γ coactivator-1α (PGC-1α), and fibronectin type III domain-containing 5 (FNDC5) signal molecules in obese mice. Interestingly, the irisin level was increased in the culture medium of C2C12 cells treated with PMQ, and the conditioned medium stimulated the brown-like transition of 3T3-L1 preadipocytes with the increased expression of PGC-1α, FNDC5, UCP-1, and other brown-like adipocyte-specific genes. The effects of conditioned culture medium were abolished in C2C12 cells with silenced PGC-1α. On the other hand, PMQ-induced upregulation of PGC-1α and FNDC5 expression was reduced by AMPK inhibitor Compound C in C2C12 cells. Our results demonstrate the novel information that PMQ-induced irisin secretion from skeletal muscle involves the improvement of metabolic dysfunction in obese mice via activating the AMPK/PGC-1α/FNDC5 signal pathway, suggesting that PMQ modulates skeletal muscle-adipose tissue crosstalk and may be a promising drug candidate for treating obesity and obesity-related metabolic diseases.
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Affiliation(s)
- Jianzhao Wu
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; (J.W.); (J.D.); (Z.L.); (W.H.); (M.W.); (M.J.)
| | - Jingxia Du
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; (J.W.); (J.D.); (Z.L.); (W.H.); (M.W.); (M.J.)
| | - Zhi Li
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; (J.W.); (J.D.); (Z.L.); (W.H.); (M.W.); (M.J.)
| | - Wei He
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; (J.W.); (J.D.); (Z.L.); (W.H.); (M.W.); (M.J.)
| | - Min Wang
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; (J.W.); (J.D.); (Z.L.); (W.H.); (M.W.); (M.J.)
| | - Manwen Jin
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; (J.W.); (J.D.); (Z.L.); (W.H.); (M.W.); (M.J.)
- Hubei Key Laboratory of Drug Target Research and Pharmacodynamic Evaluation, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Lei Yang
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
- Correspondence: (L.Y.); (H.L.)
| | - Hui Liu
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; (J.W.); (J.D.); (Z.L.); (W.H.); (M.W.); (M.J.)
- Hubei Key Laboratory of Drug Target Research and Pharmacodynamic Evaluation, Huazhong University of Science and Technology, Wuhan 430030, China
- Correspondence: (L.Y.); (H.L.)
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32
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Yadav A, Yadav SS, Singh S, Dabur R. Natural products: Potential therapeutic agents to prevent skeletal muscle atrophy. Eur J Pharmacol 2022; 925:174995. [PMID: 35523319 DOI: 10.1016/j.ejphar.2022.174995] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2021] [Revised: 04/19/2022] [Accepted: 04/28/2022] [Indexed: 12/16/2022]
Abstract
The skeletal muscle (SkM) is the largest organ, which plays a vital role in controlling musculature, locomotion, body heat regulation, physical strength, and metabolism of the body. A sedentary lifestyle, aging, cachexia, denervation, immobilization, etc. Can lead to an imbalance between protein synthesis and degradation, which is further responsible for SkM atrophy (SmA). To date, the understanding of the mechanism of SkM mass loss is limited which also restricted the number of drugs to treat SmA. Thus, there is an urgent need to develop novel approaches to regulate muscle homeostasis. Presently, some natural products attained immense attraction to regulate SkM homeostasis. The natural products, i.e., polyphenols (resveratrol, curcumin), terpenoids (ursolic acid, tanshinone IIA, celastrol), flavonoids, alkaloids (tomatidine, magnoflorine), vitamin D, etc. exhibit strong potential against SmA. Some of these natural products have been reported to have equivalent potential to standard treatments to prevent body lean mass loss. Indeed, owing to the large complexity, diversity, and slow absorption rate of bioactive compounds made their usage quite challenging. Moreover, the use of natural products is controversial due to their partially known or elusive mechanism of action. Therefore, the present review summarizes various experimental and clinical evidence of some important bioactive compounds that shall help in the development of novel strategies to counteract SmA elicited by various causes.
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Affiliation(s)
- Aarti Yadav
- Clinical Biochemistry Laboratory, Department of Biochemistry, Maharshi Dayanand University, Rohtak, 124001, Haryana, India
| | - Surender Singh Yadav
- Department of Botany, Maharshi Dayanand University, Rohtak, 124001, Haryana, India
| | - Sandeep Singh
- Department of Biochemistry, Maharshi Dayanand University, Rohtak, 124001, Haryana, India
| | - Rajesh Dabur
- Clinical Biochemistry Laboratory, Department of Biochemistry, Maharshi Dayanand University, Rohtak, 124001, Haryana, India.
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Berberine remodels adipose tissue to attenuate metabolic disorders by activating sirtuin 3. Acta Pharmacol Sin 2022; 43:1285-1298. [PMID: 34417576 PMCID: PMC9061715 DOI: 10.1038/s41401-021-00736-y] [Citation(s) in RCA: 35] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2021] [Accepted: 06/29/2021] [Indexed: 12/19/2022] Open
Abstract
Adipose tissue remodelling is considered a critical pathophysiological hallmark of obesity and related metabolic diseases. Berberine (BBR), a natural isoquinoline alkaloid, has potent anti-hyperlipidaemic and anti-hyperglycaemic effects. This study aimed to explore the role of BBR in modulating adipose tissue remodelling and the underlying mechanisms. BBR protected high fat diet (HFD)-fed mice against adiposity, insulin resistance and hyperlipidemia. BBR alleviated adipose tissue inflammation and fibrosis by inhibiting macrophage infiltration, pro-inflammatory macrophage polarization and the abnormal deposition of extracellular matrix, and the effect was mediated by BBR directly binding and activating the deacetylase Sirtuin 3 (SIRT3) and suppressing the activation of the mitogen-activated protein kinases and nuclear factor-κB signalling pathways. Furthermore, BBR decreased microRNA-155-5p secretion by macrophages, which in turn ameliorated liver injury. Moreover, BBR mitigated inflammatory responses in both LPS-stimulated macrophages and TNF-α-treated adipocytes and suppressed macrophage migration towards adipocytes by activating SIRT3. Collectively, this study revealed that BBR improved adipose tissue remodelling, and subsequently inhibited the secretion of microRNA-155-5p by macrophages, which alleviated adiposity, insulin resistance and liver injury in obese mice. The modulation of adipose tissue remodelling by activating SIRT3 could contribute to the anti-hyperlipidemic and anti-hyperglycemic effects of BBR.
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34
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Shen S, Liao Q, Chen X, Peng C, Lin L. The role of irisin in metabolic flexibility: beyond adipose tissue browning. Drug Discov Today 2022; 27:2261-2267. [PMID: 35364272 DOI: 10.1016/j.drudis.2022.03.019] [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: 07/13/2021] [Revised: 02/18/2022] [Accepted: 03/26/2022] [Indexed: 02/06/2023]
Abstract
Metabolic flexibility is the ability to adapt to physiological and environmental changes in metabolic demand. Irisin was originally discovered as an exercise-induced myokine involved in fat browning. In this review, we summarize emerging evidence for the role of irisin in regulating glucose metabolism and insulin sensitivity in skeletal muscle, neuroplasticity and satiety in central nervous system, β cell function and insulin secretion in the pancreas, bone remodeling, and adipose tissue function, which together orchestrate whole-body metabolic flexibility. Irisin is a key communicating mediator between skeletal muscle and other organs, and its manipulation could be a promising therapeutic strategy for treating obesity and related metabolic disorders. Teaser: This review summarizes recent progress in manipulating metabolic flexibility with irisin, and discusses its potential application as a drug target to treat obesity and related metabolic disorders.
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Affiliation(s)
- Shengnan Shen
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau; Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| | - Qiwen Liao
- School of Life and Health Sciences, The Chinese University of Hong Kong, Shenzhen, Guangdong, China
| | - Xiuping Chen
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau
| | - Cheng Peng
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Ligen Lin
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau; Department of Pharmaceutical Sciences, Faculty of Health Sciences, University of Macau, Macau.
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35
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Natural bioactive constituents from herbs and nutraceuticals promote browning of white adipose tissue. Pharmacol Res 2022; 178:106175. [DOI: 10.1016/j.phrs.2022.106175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Revised: 03/05/2022] [Accepted: 03/08/2022] [Indexed: 11/21/2022]
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36
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Hu MM, Zheng WY, Cheng MH, Song ZY, Shaukat H, Atta M, Qin H. Sesamol Reverses Myofiber-Type Conversion in Obese States via Activating the SIRT1/AMPK Signal Pathway. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:2253-2264. [PMID: 35166533 DOI: 10.1021/acs.jafc.1c08036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Obesity can evoke changes of skeletal muscle structure and function, which are characterized by the conversion of myofiber from type I to type II, leading to a vicious cycle of metabolic disorders. Reversing the muscle fiber-type conversion in obese states is a novel strategy for treating those with obesity. Sesamol, a food ingredient compound isolated from sesame seeds, exerted potential antiobesity effects. The present research aimed to explore the therapeutic effects of sesamol on obesity-related skeletal muscle-fiber-type conversion and elucidate the underlying molecular mechanisms through utilizing a high-fat-diet-induced obese C57BL/6J mice model and palmitic acid-exposed C2C12 myotubes. The results showed that sesamol attenuated obesity-related metabolic disturbances, elevated exercise endurance of obese mice, and decreased lipid accumulation and insulin resistance in skeletal muscle. After the treatment with sesamol, the muscular mitochondrial content and biogenesis were increased, accompanied by the enzyme activities and myosin heavy-chain isoform changed from type II fiber to type I fiber. Mechanistic studies revealed that the effects of sesamol on reversing skeletal muscle-fiber-type conversion in obese states were associated with the stimulation of the muscular sirtuin 1 (SIRT1)/AMP-activated protein kinase (AMPK) signal pathway, and these effects could be inhibited by a specific inhibitor of SIRT1, EX-527. In conclusion, our research provided novel evidence that sesamol could regulate myofiber-type conversion to treat obesity and obesity-related metabolic disorders by stimulating the muscular SIRT1/AMPK signal pathway.
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Affiliation(s)
- Min-Min Hu
- Department of Nutrition Science and Food Hygiene, Xiangya School of Public Health, Central South University, 110 Xiangya Road, Changsha 410078, Hunan Province China
| | - Wen-Ya Zheng
- Department of Nutrition Science and Food Hygiene, Xiangya School of Public Health, Central South University, 110 Xiangya Road, Changsha 410078, Hunan Province China
| | - Ming-Hui Cheng
- Department of Nutrition Science and Food Hygiene, Xiangya School of Public Health, Central South University, 110 Xiangya Road, Changsha 410078, Hunan Province China
| | - Zi-Yu Song
- Department of Nutrition Science and Food Hygiene, Xiangya School of Public Health, Central South University, 110 Xiangya Road, Changsha 410078, Hunan Province China
| | - Horia Shaukat
- Department of Nutrition Science and Food Hygiene, Xiangya School of Public Health, Central South University, 110 Xiangya Road, Changsha 410078, Hunan Province China
| | - Mahnoor Atta
- Department of Nutrition Science and Food Hygiene, Xiangya School of Public Health, Central South University, 110 Xiangya Road, Changsha 410078, Hunan Province China
| | - Hong Qin
- Department of Nutrition Science and Food Hygiene, Xiangya School of Public Health, Central South University, 110 Xiangya Road, Changsha 410078, Hunan Province China
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Ren YM, Zhang R, Feng Z, Ke CQ, Yao S, Tang C, Lin L, Ye Y. Macrocephatriolides A and B: Two Guaianolide Trimers from Ainsliaea macrocephala as PTP1B Inhibitors and Insulin Sensitizers. J Org Chem 2021; 86:17782-17789. [PMID: 34851120 DOI: 10.1021/acs.joc.1c01996] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Macrocephatriolides A and B (1 and 2), two novel guaiane-type sesquiterpene lactone trimers possessing unique linkage patterns, were identified from the whole plant of Ainsliaea macrocephala. The trimeric architecture of 1 features a cyclohexene linkage and a methylene bridge, which were presumably constructed from three constitutive monomers via a Diels-Alder cycloaddition and a Michael addition, respectively. The three monomers of 2 were tethered by a 1,2-ethanediyl and a methylene linkage at the same time. Their complex structures were established by extensive analysis of spectroscopic data inclusive of band-selective CT-HSQC and CT-HMBC and time-dependent density functional theory (TDDFT) ECD calculations. Compound 2 showed potent inhibition against protein tyrosine phosphatase 1B (PTP1B) with an IC50 value of 26.26 ± 0.88 μM but not compound 1. In the kinetic study, compound 2 was disclosed as a competitive inhibitor of PTP1B with a Ki value of 16.34 ± 4.72 μM. In insulin-stimulated C2C12 myotubes, compound 2 dose-dependently enhanced glucose uptake by activating the insulin signaling pathway. Compound 2 might represent a new scaffold of insulin sensitizers.
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Affiliation(s)
- Yong-Mei Ren
- State Key Laboratory of Drug Research and Natural Products Chemistry Department, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, People's Republic of China.,University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China.,School of Life Science and Technology, ShanghaiTech University, Shanghai 201203, People's Republic of China
| | - Rui Zhang
- State Key Laboratory of Drug Research and Natural Products Chemistry Department, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, People's Republic of China
| | - Zheling Feng
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Avenida da Universidade, Taipa, Macau 999078, China
| | - Chang-Qiang Ke
- State Key Laboratory of Drug Research and Natural Products Chemistry Department, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, People's Republic of China
| | - Sheng Yao
- State Key Laboratory of Drug Research and Natural Products Chemistry Department, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, People's Republic of China
| | - Chunping Tang
- State Key Laboratory of Drug Research and Natural Products Chemistry Department, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, People's Republic of China
| | - Ligen Lin
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Avenida da Universidade, Taipa, Macau 999078, China
| | - Yang Ye
- State Key Laboratory of Drug Research and Natural Products Chemistry Department, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, People's Republic of China.,University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China.,School of Life Science and Technology, ShanghaiTech University, Shanghai 201203, People's Republic of China
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Qin FY, Zhang JJ, Wang DW, Xu T, Cai D, Cheng YX. Direct determination of E and Z configurations for double bond in bioactive meroterpenoids from Ganoderma mushrooms by diagnostic 1H NMR chemical shifts and structure revisions of previous analogues. J Funct Foods 2021. [DOI: 10.1016/j.jff.2021.104758] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
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Honokiol attenuates lipotoxicity in hepatocytes via activating SIRT3-AMPK mediated lipophagy. Chin Med 2021; 16:115. [PMID: 34758848 PMCID: PMC8579168 DOI: 10.1186/s13020-021-00528-w] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Accepted: 10/31/2021] [Indexed: 12/12/2022] Open
Abstract
Background Non-alcoholic fatty liver disease (NAFLD) is characterized by ectopic accumulation of triglycerides in the liver. Emerging evidence has demonstrated that lipophagy regulates lipid mobilization and energy homeostasis in the liver. Sirtuin 3 (SIRT3), a mitochondrial NAD+-dependent deacetylase, modulates the activities of several substrates involving in autophagy and energy metabolism. Honokiol (HK) is a natural lignan from the plants of Magnolia genus that exhibits potent liver protective property. Methods AML12 was challenged with 500 μM palmitic acid and 250 μM oleic acid mixture solution to induce lipotoxicity. C57BL/6J mice were fed with a choline-deficient high fat diet (CDHFD) to generate liver steatosis. The expression of autophagy-related and AMP-activated protein kinase (AMPK) pathway proteins was evaluated by Western blotting and immunofluorescence staining. Intracellular lipid accumulation was validated by Nile red staining. Molecular docking analysis was performed on AutoDock 4.2. Results HK (5 and 10 μM) was found to attenuate lipid accumulation through promoting SIRT3-AMPK-mediated autophagy, mainly on lipid droplets. HK had hydrophobic interaction with amino acid residues (PHE294, GLU323 and VAL324) and NAD+. Moreover, HK improved mitochondrial function to enhance lipolysis, through decreasing the acetylated long-chain acyl-CoA dehydrogenase level. In CDHFD-fed mice, HK (2.5 and 10 mg/Kg) treatment obviously prevented lipid accumulation in the liver. And co-treatment of the AMPK inhibitor, Compound C, almost abolished the above changes. Conclusions These results suggest that HK could ameliorate lipotoxicity in hepatocytes by activating SIRT3-AMPK-lipophagy axis, which might be a potential therapeutic agent against NAFLD.
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Feng Z, Fang Z, Chen C, Vong CT, Chen J, Lou R, Hoi MPM, Gan L, Lin L. Anti-Hyperglycemic Effects of Refined Fractions from Cyclocarya paliurus Leaves on Streptozotocin-Induced Diabetic Mice. Molecules 2021; 26:molecules26226886. [PMID: 34833980 PMCID: PMC8620367 DOI: 10.3390/molecules26226886] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2021] [Revised: 10/31/2021] [Accepted: 11/12/2021] [Indexed: 12/15/2022] Open
Abstract
To identify the chemical components responsible for the anti-hyperglycemic effect of Cyclocarya paliurus (Batal.) Iljinsk (Juglandaceae) leaves, an ethanol extract (CPE) and a water extract (CPW) of C. paliurus leaves, as well as their total flavonoids (CPF), triterpenoids (CPT) and crude polysaccharides (CPP), were prepared and assessed on streptozotocin (STZ)-induced diabetic mice. After being orally administrated once a day for 24 days, CPF (300 mg/kg), CPP (180 mg/kg), or CPF+CPP (300 mg/kg CPF + 180 mg/kg CPP) treatment reversed STZ-induced body weight and muscle mass losses. The glucose tolerance tests and insulin tolerance tests suggested that CPF, CPP, and CPF+CPP showed anti-hyperglycemic effect in STZ-induced diabetic mice. Furthermore, CPF enhances glucose-stimulated insulin secretion in MIN6 cells and insulin-stimulated glucose uptake in C2C12 myotubes. CPF and CPP suppressed inflammatory cytokine levels in STZ-induced diabetic mice. Additionally, CPF and CPP improved STZ-induced diabetic nephropathy assessed by H&E staining, blood urea nitrogen content, and urine creatinine level. The molecular networking and Emperor analysis results indicated that CPF showed potential anti-hyperglycemic effects, and HPLC–MS/MS analysis indicated that CPF contains 3 phenolic acids and 9 flavonoids. In contrast, CPT (650 mg/kg) and CPC (300 mg/kg CPF + 180 mg/kg CPP + 650 mg/kg CPT) did not show anti-hyperglycemic effect. Taken together, polysaccharides and flavonoids are responsible for the anti-hyperglycemic effect of C. paliurus leaves, and the clinical application of C. paliurus need to be refined.
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Affiliation(s)
- Zheling Feng
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Avenida da Universidade, Taipa, Macao 999078, China; (Z.F.); (C.C.); (C.T.V.); (J.C.); (R.L.); (M.P.M.H.)
| | - Zhujun Fang
- Department of Clinical Pharmacy, Zhejiang Provincial Key Laboratory for Drug Evaluation and Clinical Research, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310000, China;
| | - Cheng Chen
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Avenida da Universidade, Taipa, Macao 999078, China; (Z.F.); (C.C.); (C.T.V.); (J.C.); (R.L.); (M.P.M.H.)
| | - Chi Teng Vong
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Avenida da Universidade, Taipa, Macao 999078, China; (Z.F.); (C.C.); (C.T.V.); (J.C.); (R.L.); (M.P.M.H.)
| | - Jiali Chen
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Avenida da Universidade, Taipa, Macao 999078, China; (Z.F.); (C.C.); (C.T.V.); (J.C.); (R.L.); (M.P.M.H.)
| | - Ruohan Lou
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Avenida da Universidade, Taipa, Macao 999078, China; (Z.F.); (C.C.); (C.T.V.); (J.C.); (R.L.); (M.P.M.H.)
| | - Maggie Pui Man Hoi
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Avenida da Universidade, Taipa, Macao 999078, China; (Z.F.); (C.C.); (C.T.V.); (J.C.); (R.L.); (M.P.M.H.)
| | - Lishe Gan
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
- Correspondence: (L.G.); (L.L.)
| | - Ligen Lin
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Avenida da Universidade, Taipa, Macao 999078, China; (Z.F.); (C.C.); (C.T.V.); (J.C.); (R.L.); (M.P.M.H.)
- Correspondence: (L.G.); (L.L.)
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Lou R, Xu F, Xu Y, Chen J, Feng Z, Gan L, Lin L. Caesalpinaxin, a cassane-type diterpenoid with a 21-carbon core skeleton from the seeds of Caesalpinia minax possessing pro-angiogenetic property. Bioorg Chem 2021; 117:105426. [PMID: 34666257 DOI: 10.1016/j.bioorg.2021.105426] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 10/05/2021] [Accepted: 10/09/2021] [Indexed: 12/26/2022]
Abstract
A novel cassane-type diterpenoid, caesalpinaxin (1), was isolated from the seeds of Caesalpinia minax Hance. The structure of caesalpinaxin was established by means of spectroscopic techniques (NMR, HR-ESIMS, UV and IR). The absolute configuration of caesalpinaxin was determined by quantum chemical calculations of its theoretical electronic circular dichroism (ECD) spectrum. Caesalpinaxin is the first cassane-type diterpenoid with 21 carbons core skeleton, containing an unusual δ-lactone ring. A plausible biosynthetic pathway was proposed for compound 1. Furthermore, caesalpinaxin was tested for the pro-angiogenetic activity on human umbilical vein endothelial cells(HUVECs). The results indicated that this compound significantly stimulated migration and tuber formation through enhancing the level of vascular endothelial growth factor (VEGF). Thus, caesalpinaxin might be applied in accelerating wound healing.
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Affiliation(s)
- Ruohan Lou
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macau 999078, People's Republic of China
| | - Fan Xu
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, People's Republic of China
| | - Yunshao Xu
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macau 999078, People's Republic of China
| | - Jiali Chen
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macau 999078, People's Republic of China
| | - Zheling Feng
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macau 999078, People's Republic of China
| | - Lishe Gan
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, People's Republic of China; College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, People's Republic of China.
| | - Ligen Lin
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macau 999078, People's Republic of China.
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Jiang LP, Ji JZ, Ge PX, Zhu T, Mi QY, Tai T, Li YF, Xie HG. Is platelet responsiveness to clopidogrel attenuated in overweight or obese patients and why? A reverse translational study in mice. Br J Pharmacol 2021; 179:46-64. [PMID: 34415054 DOI: 10.1111/bph.15667] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 08/06/2021] [Accepted: 08/11/2021] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND AND PURPOSE Overweight or obese patients exhibit poorer platelet responses to clopidogrel. However, the mechanisms behind this phenotype remain to be elucidated. Here, we sought to discover whether and why obesity could affect the metabolic activation of and/or platelet response to clopidogrel in obese patients and high-fat diet-induced obese mice. EXPERIMENTAL APPROACH A post hoc stratified analysis of an observational clinical study was performed to investigate changes in residual platelet reactivity with increasing body weight in patients taking clopidogrel. Furthermore, high-fat diet-induced obese mice were used to reveal alterations in systemic exposure of clopidogrel thiol active metabolite H4, ADP-induced platelet activation and aggregation, the expression of genes involved in the metabolic activation of clopidogrel, count of circulating reticulated and mature platelets, and proliferation profiles of megakaryocytes in bone marrow. The relevant genes and potential signalling pathways were predicted and enriched according to the GEO datasets available from obese patients. KEY RESULTS Obese patients exhibited significantly attenuated antiplatelet effects of clopidogrel. In diet-induced obese mice, systemic exposure of clopidogrel active metabolite H4 was reduced but that of its hydrolytic metabolite was increased due to down-regulation of certain P450s but up-regulation of carboxylesterase-1 in the liver. Moreover, enhanced proliferation of megakaryocytes and elevated platelet count also contributed. CONCLUSION AND IMPLICATIONS Obesity attenuated metabolic activation of clopidogrel and increased counts of circulating reticulated and mature platelets, leading to impaired platelet responsiveness to the drug in mice, suggesting that clopidogrel dosage may need to be adjusted adequately in overweight or obese patients.
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Affiliation(s)
- Li-Ping Jiang
- Division of Clinical Pharmacology, General Clinical Research Center, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Jin-Zi Ji
- Division of Clinical Pharmacology, General Clinical Research Center, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Peng-Xin Ge
- Division of Clinical Pharmacology, General Clinical Research Center, Nanjing First Hospital, Nanjing Medical University, Nanjing, China.,Department of Pharmacology, College of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Ting Zhu
- Division of Clinical Pharmacology, General Clinical Research Center, Nanjing First Hospital, Nanjing Medical University, Nanjing, China.,Department of Pharmacology, College of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Qiong-Yu Mi
- Division of Clinical Pharmacology, General Clinical Research Center, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Ting Tai
- Division of Clinical Pharmacology, General Clinical Research Center, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Yi-Fei Li
- Division of Clinical Pharmacology, General Clinical Research Center, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Hong-Guang Xie
- Division of Clinical Pharmacology, General Clinical Research Center, Nanjing First Hospital, Nanjing Medical University, Nanjing, China.,Department of Pharmacology, College of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China.,Department of Clinical Pharmacy, Nanjing Medical University School of Pharmacy, Nanjing, China
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Qu Z, Liu A, Liu C, Tang Q, Zhan L, Xiao W, Huang J, Liu Z, Zhang S. Theaflavin Promotes Mitochondrial Abundance and Glucose Absorption in Myotubes by Activating the CaMKK2-AMPK Signal Axis via Calcium-Ion Influx. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:8144-8159. [PMID: 34260232 DOI: 10.1021/acs.jafc.1c02892] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Drinking tea has been proven to have a positive biological effect in regulating human glucose and lipid metabolism and preventing type 2 diabetes (T2D). Skeletal muscle (SkM) is responsible for 70% of the sugar metabolism in the human body, and its dysfunction is an important factor leading to the development of obesity, T2D, and muscle diseases. As one of the four known theaflavins (TFs) in black tea, the biological role of theaflavin (TF1) in regulating SkM metabolism has not been reported. In this study, mature myotubes induced by C2C12 cells in vitro were used as models. The results showed that TF1 (20 μM) promoted mitochondrial abundance and glucose absorption in myotubes by activating the CaMKK2-AMPK signaling axis via Ca2+ influx. Moreover, it promoted the expression of slow muscle fiber marker genes (Myh7, Myl2, Tnnt1, and Tnnc1) and PGC-1α/SIRT1, as well as enhanced the oxidative phosphorylation capacity of myotubes. In conclusion, this study preliminarily clarified the potential role of TF1 in regulating SkM glucose absorption as well as promoting SkM mitochondrial biosynthesis and slow muscle fiber formation. It has potential research and application values for the prevention/alleviation of SkM-related T2D and Ca2+-related skeletal muscle diseases through diet.
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Affiliation(s)
- Zhihao Qu
- Key Laboratory of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha 410128, Hunan, China
- National Research Center of Engineering Technology for Utilization of Functional Ingredients from Botanicals, Collaborative Innovation Centre of Utilisation of Functional Ingredients from Botanicals, Hunan Agricultural University, Changsha 410128, Hunan, China
- Co-Innovation Center of Education Ministry for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410128, Hunan, China
| | - Ailing Liu
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, Hunan, China
| | - Changwei Liu
- Key Laboratory of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha 410128, Hunan, China
- National Research Center of Engineering Technology for Utilization of Functional Ingredients from Botanicals, Collaborative Innovation Centre of Utilisation of Functional Ingredients from Botanicals, Hunan Agricultural University, Changsha 410128, Hunan, China
- Co-Innovation Center of Education Ministry for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410128, Hunan, China
| | - Quanquan Tang
- Key Laboratory of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha 410128, Hunan, China
- National Research Center of Engineering Technology for Utilization of Functional Ingredients from Botanicals, Collaborative Innovation Centre of Utilisation of Functional Ingredients from Botanicals, Hunan Agricultural University, Changsha 410128, Hunan, China
- Co-Innovation Center of Education Ministry for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410128, Hunan, China
| | - Li Zhan
- Key Laboratory of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha 410128, Hunan, China
- National Research Center of Engineering Technology for Utilization of Functional Ingredients from Botanicals, Collaborative Innovation Centre of Utilisation of Functional Ingredients from Botanicals, Hunan Agricultural University, Changsha 410128, Hunan, China
- Co-Innovation Center of Education Ministry for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410128, Hunan, China
| | - Wenjun Xiao
- Key Laboratory of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha 410128, Hunan, China
- National Research Center of Engineering Technology for Utilization of Functional Ingredients from Botanicals, Collaborative Innovation Centre of Utilisation of Functional Ingredients from Botanicals, Hunan Agricultural University, Changsha 410128, Hunan, China
- Co-Innovation Center of Education Ministry for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410128, Hunan, China
| | - Jianan Huang
- Key Laboratory of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha 410128, Hunan, China
- National Research Center of Engineering Technology for Utilization of Functional Ingredients from Botanicals, Collaborative Innovation Centre of Utilisation of Functional Ingredients from Botanicals, Hunan Agricultural University, Changsha 410128, Hunan, China
- Co-Innovation Center of Education Ministry for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410128, Hunan, China
| | - Zhonghua Liu
- Key Laboratory of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha 410128, Hunan, China
- National Research Center of Engineering Technology for Utilization of Functional Ingredients from Botanicals, Collaborative Innovation Centre of Utilisation of Functional Ingredients from Botanicals, Hunan Agricultural University, Changsha 410128, Hunan, China
- Co-Innovation Center of Education Ministry for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410128, Hunan, China
| | - Sheng Zhang
- Key Laboratory of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha 410128, Hunan, China
- National Research Center of Engineering Technology for Utilization of Functional Ingredients from Botanicals, Collaborative Innovation Centre of Utilisation of Functional Ingredients from Botanicals, Hunan Agricultural University, Changsha 410128, Hunan, China
- Co-Innovation Center of Education Ministry for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410128, Hunan, China
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Mazibuko-Mbeje SE, Mthembu SXH, Dludla PV, Madoroba E, Chellan N, Kappo AP, Muller CJF. Antimycin A-induced mitochondrial dysfunction is consistent with impaired insulin signaling in cultured skeletal muscle cells. Toxicol In Vitro 2021; 76:105224. [PMID: 34302933 DOI: 10.1016/j.tiv.2021.105224] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 06/25/2021] [Accepted: 07/14/2021] [Indexed: 01/03/2023]
Abstract
Insulin resistance and mitochondrial dysfunction are characteristic features of type 2 diabetes mellitus. However, a causal relationship between insulin resistance and mitochondrial dysfunction has not been fully established in the skeletal muscle. Accordingly, we have evaluated the effect of antimycin A (AA), a mitochondrial electron transport chain complex III inhibitor, on mitochondrial bioenergetics and insulin signaling by exposing C2C12 skeletal muscle cells to its concentrations of 3.125, 6.25, 12.5, 25, and 50 μM for 12 h. Thereafter, metabolic activity, ROS production, glucose uptake, Seahorse XF Real-time ATP and Mito Stress assays were performed. Followed by real-time polymerase chain reaction (RT-PCR) and Western blot analysis. This study confirmed that AA induces mitochondrial dysfunction and promote ROS production in C2C12 myotubes, culminating in a significant decrease in mitochondrial respiration and downregulation of genes involved in mitochondrial bioenergetics (TFAM, UCP2, PGC1α). Increased pAMPK and extracellular acidification rates (ECAR) confirmed a potential compensatory enhancement in glycolysis. Additionally, AA impaired insulin signaling (protein kinase B/AKT) and decreased insulin stimulated glucose uptake. This study confirmed that an adaptive relationship exists between mitochondrial functionality and insulin responsiveness in skeletal muscle. Thus, therapeutics or interventions that improve mitochondrial function could ameliorate insulin resistance as well.
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Affiliation(s)
- Sithandiwe E Mazibuko-Mbeje
- Department of Biochemistry, Faculty of Natural and Agricultural Sciences, NorthWest University, Mafikeng Campus, Private Bag X 2046, Mmabatho 2735, South Africa.
| | - Sinenhlanhla X H Mthembu
- Biomedical Research and Innovation Platform, South African Medical Research Council, Tygerberg 7505, South Africa; Department of Biochemistry and Microbiology, University of Zululand, KwaDlangezwa 3886, South Africa
| | - Phiwayinkosi V Dludla
- Biomedical Research and Innovation Platform, South African Medical Research Council, Tygerberg 7505, South Africa
| | - Evelyn Madoroba
- Department of Biochemistry and Microbiology, University of Zululand, KwaDlangezwa 3886, South Africa
| | - Nireshni Chellan
- Biomedical Research and Innovation Platform, South African Medical Research Council, Tygerberg 7505, South Africa; Division of Medical Physiology, Faculty of Health Sciences, Stellenbosch University, Tygerberg 7505, South Africa
| | - Abidemi P Kappo
- Department of Biochemistry, Faculty of Science, University of Johannesburg, Kingsway Campus, Auckland Park 2006, South Africa
| | - Christo J F Muller
- Biomedical Research and Innovation Platform, South African Medical Research Council, Tygerberg 7505, South Africa; Department of Biochemistry and Microbiology, University of Zululand, KwaDlangezwa 3886, South Africa; Division of Medical Physiology, Faculty of Health Sciences, Stellenbosch University, Tygerberg 7505, South Africa
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Ding LN, Cheng Y, Xu LY, Zhou LQ, Guan L, Liu HM, Zhang YX, Li RM, Xu JW. The β3 Adrenergic Receptor Agonist CL316243 Ameliorates the Metabolic Abnormalities of High-Fat Diet-Fed Rats by Activating AMPK/PGC-1α Signaling in Skeletal Muscle. Diabetes Metab Syndr Obes 2021; 14:1233-1241. [PMID: 33776460 PMCID: PMC7987271 DOI: 10.2147/dmso.s297351] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Accepted: 03/02/2021] [Indexed: 12/15/2022] Open
Abstract
PURPOSE Skeletal muscle has a major influence on whole-body metabolic homeostasis. In the present study, we aimed to determine the metabolic effects of the β3 adrenergic receptor agonist CL316243 (CL) in the skeletal muscle of high-fat diet-fed rats. METHODS Sprague-Dawley rats were randomly allocated to three groups, which were fed a control diet (C) or a high-fat diet (HF), and half of the latter were administered 1 mg/kg CL by gavage once weekly (HF+CL), for 12 weeks. At the end of this period, the serum lipid profile and glucose tolerance of the rats were evaluated. In addition, the phosphorylation and protein and mRNA expression of AMP-activated protein kinase (AMPK), peroxisome proliferator-activated receptor γ coactivator (PGC)-1α, and carnitine palmitoyl transferase (CPT)-1b in skeletal muscle were measured by Western blot analysis and qPCR. The direct effects of CL on the phosphorylation (p-) and expression of AMPK, PGC-1α, and CPT-1b were also evaluated by Western blotting and immunofluorescence in L6 myotubes. RESULTS CL administration ameliorated the abnormal lipid profile and glucose tolerance of the high-fat diet-fed rats. In addition, the expression of p-AMPK, PGC-1α, and CPT-1b in the soleus muscle was significantly increased by CL. CL (1 µM) also increased the protein expression of p-AMPK, PGC-1α, and CPT-1b in L6 myotubes. However, the effect of CL on PGC-1α protein expression was blocked by the AMPK antagonist compound C, which suggests that CL increases PGC-1α protein expression via AMPK. CONCLUSION Activation of the β3 adrenergic receptor in skeletal muscle ameliorates the metabolic abnormalities of high-fat diet-fed rats, at least in part via activation of the AMPK/PGC-1α pathway.
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Affiliation(s)
- Li-Na Ding
- The Research Center of Basic Integrative Medicine, Basic Medical College, Guangzhou University of Chinese Medicine, University Town, Guangzhou, 510006, People’s Republic of China
| | - Ya Cheng
- The Research Center of Basic Integrative Medicine, Basic Medical College, Guangzhou University of Chinese Medicine, University Town, Guangzhou, 510006, People’s Republic of China
| | - Lu-Yao Xu
- The Research Center of Basic Integrative Medicine, Basic Medical College, Guangzhou University of Chinese Medicine, University Town, Guangzhou, 510006, People’s Republic of China
| | - Le-Quan Zhou
- The Research Center of Basic Integrative Medicine, Basic Medical College, Guangzhou University of Chinese Medicine, University Town, Guangzhou, 510006, People’s Republic of China
- Department of Physiology, Basic Medical College, Guangzhou University of Chinese Medicine, University Town, Guangzhou, 510006, People’s Republic of China
| | - Li Guan
- The Research Center of Basic Integrative Medicine, Basic Medical College, Guangzhou University of Chinese Medicine, University Town, Guangzhou, 510006, People’s Republic of China
- Department of Physiology, Basic Medical College, Guangzhou University of Chinese Medicine, University Town, Guangzhou, 510006, People’s Republic of China
| | - Hai-Mei Liu
- The Research Center of Basic Integrative Medicine, Basic Medical College, Guangzhou University of Chinese Medicine, University Town, Guangzhou, 510006, People’s Republic of China
- Department of Physiology, Basic Medical College, Guangzhou University of Chinese Medicine, University Town, Guangzhou, 510006, People’s Republic of China
| | - Ya-Xing Zhang
- The Research Center of Basic Integrative Medicine, Basic Medical College, Guangzhou University of Chinese Medicine, University Town, Guangzhou, 510006, People’s Republic of China
- Department of Physiology, Basic Medical College, Guangzhou University of Chinese Medicine, University Town, Guangzhou, 510006, People’s Republic of China
| | - Run-Mei Li
- The Research Center of Basic Integrative Medicine, Basic Medical College, Guangzhou University of Chinese Medicine, University Town, Guangzhou, 510006, People’s Republic of China
| | - Jin-Wen Xu
- The Research Center of Basic Integrative Medicine, Basic Medical College, Guangzhou University of Chinese Medicine, University Town, Guangzhou, 510006, People’s Republic of China
- Department of Physiology, Basic Medical College, Guangzhou University of Chinese Medicine, University Town, Guangzhou, 510006, People’s Republic of China
- Correspondence: Jin-Wen Xu Guangzhou University of Chinese Medicine, University Town, Waihuan East Road 232, Guangzhou, 510006, People’s Republic of ChinaTel +86-20-39358028Fax +86-20-39358020 Email
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Phytochemicals with Added Value from Morella and Myrica Species. Molecules 2020; 25:molecules25246052. [PMID: 33371425 PMCID: PMC7767459 DOI: 10.3390/molecules25246052] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Revised: 12/14/2020] [Accepted: 12/17/2020] [Indexed: 12/17/2022] Open
Abstract
Terrestrial plants, due to their sessile nature, are highly exposed to environmental pressure and therefore need to produce very effective molecules that enable them to survive all the threats. Myrica and Morella (Myricaceae) are taxonomically close genera, which include species of trees or shrubs with edible fruits that exhibit relevant uses in traditional medicine. For instance, in Chinese or Japanese folk medicine, they are used to treat diarrhea, digestive problems, headache, burns, and skin diseases. A wide array of compounds isolated from different parts of Myrica and/or Morella species possess several biological activities, like anticancer, antidiabetic, anti-obesity, and cardio-/neuro-/hepatoprotective activities, both in vitro and in vivo, with myricanol, myricitrin, quercitrin, and betulin being the most promising. There are still many other compounds isolated from both genera whose biological activities have not been evaluated, which represents an excellent opportunity to discover new applications for those compounds and valorize Morella/Myrica species.
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Xu Y, Feng Z, Zhang T, Lv P, Cao J, Li D, Peng C, Lin L. Pimarane Diterpenoids from the Seeds of Caesalpinia minax as PTP1B Inhibitors and Insulin Sensitizers. Molecules 2020; 25:E4674. [PMID: 33066298 PMCID: PMC7587383 DOI: 10.3390/molecules25204674] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 10/06/2020] [Accepted: 10/12/2020] [Indexed: 02/07/2023] Open
Abstract
Protein-tyrosine phosphatase 1B (PTP1B) has been considered as a promising target for treating insulin resistance. In searching for naturally occurring PTB1B antagonists, two new pimarane diterpenoids, named 2α-hydroxy-7-oxo-pimara-8(9),15-diene (1) and 19-hydroxy-2α-acetoxy-7-oxo-pimara-8(9),15-diene (2), were isolated from the seeds of Caesalpinia minax. Their structures were determined by extensive analysis of NMR and HR-ESIMS data, and their absolute configurations were determined by electronic circular dichroism (ECD) spectra. Compound 1 was disclosed as a competitive inhibitor of PTP1B with an IC50 (the half-maximal inhibitory concentration) value of 19.44 ± 2.39 µM and a Ki (inhibition constant) value of 13.69 ± 2.72 μM. Moreover, compound 1 dose-dependently promoted insulin-stimulated glucose uptake in C2C12 myotubes through activating insulin signaling pathway. Compound 1 might be further developed as an insulin sensitizer.
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Affiliation(s)
- Yunshao Xu
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao SAR 999078, China; (Y.X.); (Z.F.); (T.Z.); (P.L.); (J.C.)
| | - Zheling Feng
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao SAR 999078, China; (Y.X.); (Z.F.); (T.Z.); (P.L.); (J.C.)
| | - Tian Zhang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao SAR 999078, China; (Y.X.); (Z.F.); (T.Z.); (P.L.); (J.C.)
| | - Peng Lv
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao SAR 999078, China; (Y.X.); (Z.F.); (T.Z.); (P.L.); (J.C.)
| | - Jun Cao
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao SAR 999078, China; (Y.X.); (Z.F.); (T.Z.); (P.L.); (J.C.)
| | - Dan Li
- State Key Laboratory of Southwestern Characteristic Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 610075, China; (D.L.); (C.P.)
| | - Cheng Peng
- State Key Laboratory of Southwestern Characteristic Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 610075, China; (D.L.); (C.P.)
| | - Ligen Lin
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao SAR 999078, China; (Y.X.); (Z.F.); (T.Z.); (P.L.); (J.C.)
- State Key Laboratory of Southwestern Characteristic Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 610075, China; (D.L.); (C.P.)
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Liu M, Wang L, Li X, Wu Y, Yin F, Liu J. Trilobatin ameliorates insulin resistance through IRS-AKT-GLUT4 signaling pathway in C2C12 myotubes and ob/ob mice. Chin Med 2020; 15:110. [PMID: 33062046 PMCID: PMC7552530 DOI: 10.1186/s13020-020-00390-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Accepted: 10/04/2020] [Indexed: 12/13/2022] Open
Abstract
Background Trilobatin, a natural compound, has been found to exhibit anti-diabetic properties in high-fat diet (HFD) and streptozotocin (STZ) induced type 2 diabetic mice. But up to now no research has been reported on the effect of trilobatin on insulin resistance in peripheral tissues. Herein, we determined the effects of trilobatin on insulin resistance in palmitate-treated C2C12 myotubes and ob/ob mice. Methods Male ob/ob mice (8-10 weeks) and same background C57BL/6 mice were used to evaluate the role of trilobatin on insulin resistance; protein expression and phosphorylation were measured by western blot; glucose uptake was determined a fluorescent test. Results Treatment with trilobatin prevented palmitate-induced insulin resistance by enhancing glucose uptake and the phosphorylation of insulin resistance substrate 1 (IRS1) and protein Kinase B, (PKB/AKT), recovered the translocation of GLUT4 from cytoplasm to membrane, but preincubation with LY294002, an inhibitor of PI3K, blocked the effects of trilobatin on glucose uptake and the distribution of GLUT4 in C2C12 myotubes. Furthermore, administration with trilobatin for 4 weeks significantly improved insulin resistance by decreasing fasting blood glucose and insulin in serum, enhancing the phosphorylation of IRS1 and AKT, and recovering the expression and translocation of GLUT4 in ob/ob mice. Conclusions IRS-AKT-GLUT4 signaling pathway might be involved in trilobatin ameliorating insulin resistance in skeletal muscle of obese animal models.
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Affiliation(s)
- Min Liu
- Chongqing Key Lab of Medicinal Chemistry & Molecular Pharmacology, Chongqing University of Technology, Hongguang Road 69, Ba'nan District, Chongqing, 400054 China.,College of Pharmacy and Bioengineering, Chongqing University of Technology, Chongqing, 400054 China
| | - Lujing Wang
- Chongqing Key Lab of Medicinal Chemistry & Molecular Pharmacology, Chongqing University of Technology, Hongguang Road 69, Ba'nan District, Chongqing, 400054 China.,College of Pharmacy and Bioengineering, Chongqing University of Technology, Chongqing, 400054 China
| | - Xigan Li
- Chongqing Key Lab of Medicinal Chemistry & Molecular Pharmacology, Chongqing University of Technology, Hongguang Road 69, Ba'nan District, Chongqing, 400054 China.,College of Pharmacy and Bioengineering, Chongqing University of Technology, Chongqing, 400054 China
| | - Yucui Wu
- Chongqing Key Lab of Medicinal Chemistry & Molecular Pharmacology, Chongqing University of Technology, Hongguang Road 69, Ba'nan District, Chongqing, 400054 China.,College of Pharmacy and Bioengineering, Chongqing University of Technology, Chongqing, 400054 China
| | - Fei Yin
- Chongqing Key Lab of Medicinal Chemistry & Molecular Pharmacology, Chongqing University of Technology, Hongguang Road 69, Ba'nan District, Chongqing, 400054 China.,College of Pharmacy and Bioengineering, Chongqing University of Technology, Chongqing, 400054 China
| | - Jianhui Liu
- Chongqing Key Lab of Medicinal Chemistry & Molecular Pharmacology, Chongqing University of Technology, Hongguang Road 69, Ba'nan District, Chongqing, 400054 China.,College of Pharmacy and Bioengineering, Chongqing University of Technology, Chongqing, 400054 China
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Zhang T, Fang Z, Linghu KG, Liu J, Gan L, Lin L. Small molecule-driven SIRT3-autophagy-mediated NLRP3 inflammasome inhibition ameliorates inflammatory crosstalk between macrophages and adipocytes. Br J Pharmacol 2020; 177:4645-4665. [PMID: 32726464 DOI: 10.1111/bph.15215] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Revised: 06/03/2020] [Accepted: 07/15/2020] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND AND PURPOSE IL-1β produced by macrophages via the NOD-, LRR- and pyrin domain-containing 3 (NLRP3) inflammasome, mediates the inflammatory crosstalk between macrophages and adipocytes. In our previous study, (16S,20S,24R)-12β-acetoxy-16,23-epoxy-24,25-dihydroxy-3β-(β-D-xylopyranosyloxy)-9,19-cyclolanost-22(23)-ene (AEDC), a cycloartane triterpenoid isolated from Actaea vaginata (Ranunculaceae), was found to possess anti-inflammatory effect on LPS-treated RAW264.7 macrophages. This study was designed to investigate whether AEDC modulates macrophage-adipocyte crosstalk to alleviate adipose tissue inflammation. EXPERIMENTAL APPROACH The anti-inflammatory effect of AEDC was evaluated on LPS plus ATP-induced THP-1 macrophages and C57BL/6J mice. The expression of autophagy-related and NLRP3 inflammasome complex proteins was analysed by western blots, immunofluorescence staining and co-immunoprecipitation. The pro-inflammatory cytokines levels were determined by ELISA kits. The adipose tissue inflammation was evaluated by histological analysis and immunohistochemical staining. KEY RESULTS AEDC (5 and 10 μM) activated autophagy, which in turn suppressed the NLRP3 inflammasome activation and IL-1β secretion in THP-1 macrophages. AEDC increased the expression of SIRT3 deacetylase and enhanced its deacetylating activity to reverse mitochondrial dysfunction and activate AMP-activated protein kinase, which together induced autophagy. Moreover, AEDC (10 μM) attenuated macrophage conditioned medium-induced inflammatory responses in adipocytes and blocked THP-1 macrophages migration towards 3T3-L1 adipocytes. In inflammation mice, AEDC (5 and 20 mg·kg-1 ) treatment reduced the levels of pro-inflammatory cytokines in serum and epididymal adipose tissue and reduced macrophage infiltration to alleviate adipose tissue inflammation. CONCLUSION AND IMPLICATIONS AEDC attenuated the inflammatory crosstalk between macrophages and adipocytes through SIRT3-autophagy-mediated NLRP3 inflammasome inhibition, which might used for the treatment of adipose tissue inflammation-related metabolic disorders.
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Affiliation(s)
- Tian Zhang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Avenida da Universidade, Macau, China
| | - Zhujun Fang
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
| | - Ke-Gang Linghu
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Avenida da Universidade, Macau, China
| | - Jingxin Liu
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Avenida da Universidade, Macau, China
| | - Lishe Gan
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, China.,College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
| | - Ligen Lin
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Avenida da Universidade, Macau, China
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Chen Q, Chao Y, Zhang W, Zhang Y, Bi Y, Fu Y, Cai D, Meng Q, Li Y, Bian H. Activation of estrogen receptor α (ERα) is required for Alisol B23-acetate to prevent post-menopausal atherosclerosis and reduced lipid accumulation. Life Sci 2020; 258:118030. [PMID: 32739470 DOI: 10.1016/j.lfs.2020.118030] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 06/12/2020] [Accepted: 06/26/2020] [Indexed: 02/06/2023]
Abstract
The risk of atherosclerosis (AS) ascends among post-menopausal women, while current hormone replacement therapy exerts several adverse effects. Alisol B 23-acetate (AB23A), a tetracyclic triterpenoid isolated from the rhizome of Alisma orientale, was reported to show multiple physiological activities, including regulating lipid metabolism. According to molecular docking analysis, it was predicted to bind with estrogen receptor α (ERα). In this study, we aimed to observe the effect of AB23A on preventing post-menopausal AS and explore whether the mechanism was mediated by ERα. In vitro, free fatty acid (FFA) was applied to induce the abnormal lipid metabolism of L02 cells. In vivo, the ApoE-/- mice were ovariectomized to mimic the cessation of estrogen. The high-fat diet was also given to induce post-menopausal AS. We demonstrated AB23A attenuated the accumulation of total cholesterol and triglyceride induced by free fatty acids in hepatocytes. In high-fat diet-ovariectomy-treated ApoE-/- mice, AB23A eliminated lipids in blood and liver. AB23A not only reduced the synthesis of proprotein convertase subtilisin/kexin type 9 (PCSK9) through sterol-regulatory element binding proteins (SREBPs) but also suppressed the secretion of PCSK9 through silent information regulator 1 (SIRT1). Notably, AB23A promoted the expression of ERα in vivo and in vitro. The both ERα inhibitor and ERα siRNA were also applied in confirming whether the hepatic protective effect of AB23A was mediated by ERα. We found that AB23A significantly promoted the expression of ERα. AB23A could inhibit the synthesis and secretion of PCSK9 through ERα, lower the accumulation of triglyceride and cholesterol, and prevent post-menopausal AS.
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Affiliation(s)
- Qi Chen
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Ying Chao
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Weiwei Zhang
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Yuhan Zhang
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Yunhui Bi
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Yu Fu
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Danfeng Cai
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Qinghai Meng
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Yu Li
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China; School of Medicine and Life Sciences, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Huimin Bian
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China; Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing 210023, China.
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