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Gu W, Wu G, Chen G, Meng X, Xie Z, Cai S. Polyphenols alleviate metabolic disorders: the role of ubiquitin-proteasome system. Front Nutr 2024; 11:1445080. [PMID: 39188976 PMCID: PMC11345163 DOI: 10.3389/fnut.2024.1445080] [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: 06/06/2024] [Accepted: 07/04/2024] [Indexed: 08/28/2024] Open
Abstract
Metabolic disorders include obesity, nonalcoholic fatty liver disease, insulin resistance and type 2 diabetes. It has become a major health issue around the world. Ubiquitin-proteasome system (UPS) is essential for nearly all cellular processes, functions as a primary pathway for intracellular protein degradation. Recent researches indicated that dysfunctions in the UPS may result in the accumulation of toxic proteins, lipotoxicity, oxidative stress, inflammation, and insulin resistance, all of which contribute to the development and progression of metabolic disorders. An increasing body of evidence indicates that specific dietary polyphenols ameliorate metabolic disorders by preventing lipid synthesis and transport, excessive inflammation, hyperglycemia and insulin resistance, and oxidative stress, through regulation of the UPS. This review summarized the latest research progress of natural polyphenols improving metabolic disorders by regulating lipid accumulation, inflammation, oxidative stress, and insulin resistance through the UPS. In addition, the possible mechanisms of UPS-mediated prevention of metabolic disorders are comprehensively proposed. We aim to provide new angle to the development and utilization of polyphenols in improving metabolic disorders.
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Affiliation(s)
- Wei Gu
- State Key Laboratory of Tea Plant Biology and Utilization, School of Tea and Food Sciences and Technology, Anhui Agricultural University, Hefei, Anhui, China
- Joint Research Center for Food Nutrition and Health of IHM, Anhui Agricultural University, Hefei, Anhui, China
| | - Guohuo Wu
- State Key Laboratory of Tea Plant Biology and Utilization, School of Tea and Food Sciences and Technology, Anhui Agricultural University, Hefei, Anhui, China
- Joint Research Center for Food Nutrition and Health of IHM, Anhui Agricultural University, Hefei, Anhui, China
| | - Guijie Chen
- State Key Laboratory of Tea Plant Biology and Utilization, School of Tea and Food Sciences and Technology, Anhui Agricultural University, Hefei, Anhui, China
- Joint Research Center for Food Nutrition and Health of IHM, Anhui Agricultural University, Hefei, Anhui, China
| | - Xianghui Meng
- The First Affiliated Hospital of University of Science and Technology of China, Hefei, Anhui, China
| | - Zhongwen Xie
- State Key Laboratory of Tea Plant Biology and Utilization, School of Tea and Food Sciences and Technology, Anhui Agricultural University, Hefei, Anhui, China
- Joint Research Center for Food Nutrition and Health of IHM, Anhui Agricultural University, Hefei, Anhui, China
| | - Shanbao Cai
- The First Affiliated Hospital of University of Science and Technology of China, Hefei, Anhui, China
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2
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McFarlin BK, Tanner EA, Hill DW, Vingren JL. Prebiotic/probiotic supplementation resulted in reduced visceral fat and mRNA expression associated with adipose tissue inflammation, systemic inflammation, and chronic disease risk. GENES & NUTRITION 2022; 17:15. [PMID: 36437471 PMCID: PMC9703693 DOI: 10.1186/s12263-022-00718-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Accepted: 11/14/2022] [Indexed: 11/29/2022]
Abstract
BACKGROUND Prebiotic/probiotic supplementation represents a viable option for addressing elevated systemic inflammation and chronic disease risk in overweight individuals. The purpose of this study was to determine if 90 days of prebiotic/probiotic supplementation could alter mRNA responsible for inflammation and chronic disease risk in weight-stable overweight adults. Nanostring mRNA analysis (574 plex) was used to survey targets associated with adipose tissue inflammation, systemic inflammation, and chronic disease risk. All protocols were approved by the University IRB, and participants gave written informed consent. Participants were randomly assigned to either placebo (N = 7; rice flour) or combined (N = 8) prebiotic (PreticX® Xylooligosaccharide; 0.8 g/day; ADIP) and probiotic (MegaDuo® Bacillus subtilis HU58 and Bacillus coagulans SC-208; billion CFU/day) supplementation. Participants were diverse population of healthy individuals with the exception of excess body weight. Measurements were made at baseline, 30, 60, and 90 days. Whole-body DXA scans (GE iDXA®; body composition) and blood 574-plex mRNA analysis (Nanostring®) were used to generate primary outcomes. Significance was set to p < 0.05 and adjusted for multiple comparisons where necessary. RESULTS Compared to placebo, prebiotic/probiotic supplementation was associated with a 35% reduction in visceral adipose tissue (VAT; p = 0.002) but no change in body weight or overall percent body fat. Prebiotic/probiotic supplementation resulted in significant (p < 0.05), differential expression of 15 mRNA associated with adipose tissue inflammation (GATA3, TNFAIP6, ST2, CMKLR1, and CD9), systemic inflammation (LTF, SOCS1, and SERPING1), and/or chronic disease risk (ARG1, IL-18, CCL4, CEACAM6, ATM, CD80, and LAMP3). We also found 6 additional mRNA that had no obvious relationship to three previous biological functions (CSF1, SRC, ICAM4CD24, CD274, and CLEC6A). CONCLUSION The key findings support that 90-day prebiotic/probiotic supplementation may be associated with reduced adipose tissue inflammation, reduced systemic inflammation, and reduced chronic disease risk. Combined with the unexpected finding of reduced VAT, this intervention may have resulted in improved overall health and reduced chronic disease risk.
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Affiliation(s)
- Brian K McFarlin
- Applied Physiology Laboratory, University of North Texas, Denton, TX, 76203, USA. .,Department of Biological Sciences, University of North Texas, Denton, TX, 76203, USA.
| | - Elizabeth A Tanner
- Applied Physiology Laboratory, University of North Texas, Denton, TX, 76203, USA.,Department of Biological Sciences, University of North Texas, Denton, TX, 76203, USA
| | - David W Hill
- Applied Physiology Laboratory, University of North Texas, Denton, TX, 76203, USA
| | - Jakob L Vingren
- Applied Physiology Laboratory, University of North Texas, Denton, TX, 76203, USA.,Department of Biological Sciences, University of North Texas, Denton, TX, 76203, USA
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Masood KI, Irfan M, Masood Q, Yameen M, Jamil B, Ram N, Rao S, Rottenberg M, Hasan Z. Latent
M. tuberculosis
infection is associated with increased inflammatory cytokine and decreased suppressor of cytokine signalling (SOCS)‐3 in the diabetic host. Scand J Immunol 2021; 95:e13134. [DOI: 10.1111/sji.13134] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 12/20/2021] [Accepted: 12/21/2021] [Indexed: 01/06/2023]
Affiliation(s)
- Kiran Iqbal Masood
- Department of Pathology and Laboratory Medicine The Aga Khan University Karachi Pakistan
- Department of Medicine The Aga Khan University Karachi Pakistan
- Department of Microbiology, Tumor and Cell Biology Karolinska Institutet Stockholm Sweden
| | - Muhammad Irfan
- Department of Pathology and Laboratory Medicine The Aga Khan University Karachi Pakistan
- Department of Medicine The Aga Khan University Karachi Pakistan
- Department of Microbiology, Tumor and Cell Biology Karolinska Institutet Stockholm Sweden
| | - Qamar Masood
- Department of Pathology and Laboratory Medicine The Aga Khan University Karachi Pakistan
- Department of Medicine The Aga Khan University Karachi Pakistan
- Department of Microbiology, Tumor and Cell Biology Karolinska Institutet Stockholm Sweden
| | - Maliha Yameen
- Department of Pathology and Laboratory Medicine The Aga Khan University Karachi Pakistan
- Department of Medicine The Aga Khan University Karachi Pakistan
- Department of Microbiology, Tumor and Cell Biology Karolinska Institutet Stockholm Sweden
| | - Bushra Jamil
- Department of Pathology and Laboratory Medicine The Aga Khan University Karachi Pakistan
- Department of Medicine The Aga Khan University Karachi Pakistan
- Department of Microbiology, Tumor and Cell Biology Karolinska Institutet Stockholm Sweden
| | - Nanik Ram
- Department of Pathology and Laboratory Medicine The Aga Khan University Karachi Pakistan
- Department of Medicine The Aga Khan University Karachi Pakistan
- Department of Microbiology, Tumor and Cell Biology Karolinska Institutet Stockholm Sweden
| | - Shoaib Rao
- Department of Pathology and Laboratory Medicine The Aga Khan University Karachi Pakistan
- Department of Medicine The Aga Khan University Karachi Pakistan
- Department of Microbiology, Tumor and Cell Biology Karolinska Institutet Stockholm Sweden
| | - Martin Rottenberg
- Department of Pathology and Laboratory Medicine The Aga Khan University Karachi Pakistan
- Department of Medicine The Aga Khan University Karachi Pakistan
- Department of Microbiology, Tumor and Cell Biology Karolinska Institutet Stockholm Sweden
| | - Zahra Hasan
- Department of Pathology and Laboratory Medicine The Aga Khan University Karachi Pakistan
- Department of Medicine The Aga Khan University Karachi Pakistan
- Department of Microbiology, Tumor and Cell Biology Karolinska Institutet Stockholm Sweden
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Effect of (-)-Epigallocatechin Gallate on Activation of JAK/STAT Signaling Pathway by Staphylococcal Enterotoxin A. Toxins (Basel) 2021; 13:toxins13090609. [PMID: 34564613 PMCID: PMC8473440 DOI: 10.3390/toxins13090609] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Revised: 08/22/2021] [Accepted: 08/25/2021] [Indexed: 11/17/2022] Open
Abstract
Staphylococcal enterotoxin A (SEA), which is a superantigen toxin protein, binds to cytokine receptor gp130. Gp130 activates intracellular signaling pathways, including the Janus kinase/signal transducers and activators of transcription (JAK/STAT) pathway. The effects of SEA on the JAK/STAT signaling pathway in mouse spleen cells were examined. After treatment with SEA, mRNA expression levels of interferon gamma (IFN-γ) and suppressor of cytokine-signaling 1 (SOCS1) increased. SEA-induced IFN-γ and SOCS1 expression were decreased by treatment with (-)-epigallocatechin gallate (EGCG). The phosphorylated STAT3, Tyr705, increased significantly in a SEA concentration-dependent manner in mouse spleen cells. Although (-)-3″-Me-EGCG did not inhibit SEA-induced phosphorylated STAT3, EGCG and (-)-4″-Me-EGCG significantly inhibited SEA-induced phosphorylated STAT3. It was thought that the hydroxyl group at position 3 of the galloyl group in the EGCG was responsible for binding to SEA and suppressing SEA-induced phosphorylation of STAT3. Through protein thermal shift assay in vitro, the binding of the gp130 receptor to SEA and the phosphorylation of STAT3 were inhibited by the interaction between EGCG and SEA. As far as we know, this is the first report to document that EGCG inhibits the binding of the gp130 receptor to SEA and the associated phosphorylation of STAT3.
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Ye S, Yu C, Zhang G, Shi F, Chen Y, Yang J, Wu W, Zhou Y. Downregulation of microRNA-126 is inversely correlated with insulin receptor substrate-1 protein expression in colorectal cancer and is associated with advanced stages of disease. Oncol Lett 2020; 20:2411-2419. [PMID: 32782558 PMCID: PMC7400408 DOI: 10.3892/ol.2020.11796] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Accepted: 05/28/2020] [Indexed: 12/17/2022] Open
Abstract
Colorectal cancer (CRC) is a common human malignant tumor, and the fourth most common cause of cancer-associated mortality in China. However, the pathogenesis of CRC is not yet fully understood. The present study aimed to investigate the expression and clinical significance of microRNA (miR)-126 and insulin receptor substrate-1 (IRS-1), as well as the role of miR-126 in the prognosis of patients with CRC. A total of 86 colorectal tissue specimens, including 40 CRC and adjacent normal tissue, 26 colorectal adenoma tissue and 20 normal colorectal tissue samples, were collected for the present study. Reverse transcription-quantitative PCR analysis was performed to determine miR-126 and IRS-1 mRNA expression levels, while western blotting and immunohistochemistry (IHC) analyses were performed to determine IRS-1 protein expression levels. The correlation between miR-126 and IRS-1 expression, as well as the association between altered miR-126 and IRS-1 expression levels and clinicopathological characteristics, and the overall survival time of patients with CRC were assessed. The results demonstrated that miR-126 expression was significantly downregulated, while IRS-1 protein expression was upregulated in CRC tissues compared with that in adjacent normal tissues, colorectal adenoma tissues and normal colorectal tissues, respectively. IHC analysis exhibited strong positive staining of IRS-1 protein in CRC tissues, while absent or weak staining of IRS-1 protein was detected in adjacent normal tissues, colorectal adenoma tissues and normal colorectal tissues. miR-126 expression was inversely correlated with IRS-1 protein expression in CRC tissues (r=−0.420; P<0.05). Furthermore, downregulated miR-126 expression was associated with advanced clinicopathological characteristics of the disease and a shorter overall survival time in patients with CRC. Taken together, the results of the present study suggest that miR-126 downregulation may be a candidate molecular marker predictive of poor prognosis of patients with CRC.
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Affiliation(s)
- Shicai Ye
- Department of Gastroenterology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong 524001, P.R. China
| | - Caiyuan Yu
- Department of Gastroenterology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong 524001, P.R. China
| | - Guixia Zhang
- Department of Gastroenterology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong 524001, P.R. China
| | - Feixiong Shi
- Department of Gastroenterology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong 524001, P.R. China
| | - Yongze Chen
- Department of Gastroenterology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong 524001, P.R. China
| | - Jianyun Yang
- Department of Gastroenterology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong 524001, P.R. China
| | - Weiyun Wu
- Department of Gastroenterology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong 524001, P.R. China
| | - Yu Zhou
- Department of Gastroenterology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong 524001, P.R. China
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Veeravarapu H, Malkhed V, Mustyala KK, Vadija R, Malikanti R, Vuruputuri U, Muthyala MKK. Structure-based drug design, synthesis and screening of MmaA1 inhibitors as novel anti-TB agents. Mol Divers 2020; 25:351-366. [PMID: 32533514 DOI: 10.1007/s11030-020-10107-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Accepted: 05/15/2020] [Indexed: 02/05/2023]
Abstract
Tuberculosis is one of the leading causes of death across the world. The treatment regimens for tuberculosis are well established, but still the control of the disease faces many challenges such as lengthy treatment protocols, drug resistance and toxicity. In the present work, mycolic acid methyl transferase (MmaA1), a protein involved in the maturation of mycolic acids in the biochemical pathway of the Mycobacterium, was studied for novel drug discovery. The homology model of the MmaA1 protein was built and validated by using computational techniques. The MmaA1 protein has 286 amino acid residues consisting of 10 α-helices and 7 β-sheets. The active site of the MmaA1 protein was identified using CASTp, SiteMap and PatchDock. Virtual screening studies were performed with two small molecule ligand databases: Asinex synergy and Diverse_Elite_Gold_Platinum databases having a total of 43,446 molecules and generated 1,30,814 conformers against the predicted and validated active site of the MmaA1 protein. Binding analysis showed that the residues ASP 19, PHE 22, TRP 30, TYR 32, TRP 74 and ALA 77 of MmaA1 protein have consistent interactions with the ligands. The hit ligands were further filtered by in silico ADME properties to eliminate potentially toxic molecules. Of the top 10 molecules, 3-(2-morpholinoacetamido)-N-(1,4-dihydro-4-oxoquinazolin-6-yl) benzamide was synthesised and screened for in vitro anti-TB activity against Mtb H37Rv using MABA assay. The compound and its intermediates exhibited good in vitro anti-TB activity which can be taken up for future lead optimisation studies. Structure based virtual screening study was performed using a validated homology model against small molecules from two virtual compound libraries. Synthesised the lead compound 3-(2-morpholinoacetamido)-N-(1,4-dihydro-4-oxoquinazolin-6-yl)benzamide obtained from virtual screening. In vitro activity against Mtb H37Rv has given a promising result.
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Affiliation(s)
- Hymavathi Veeravarapu
- Pharmaceutical Chemistry Research Lab, AU College of Pharmaceutical Sciences, Andhra University, Visakhapatnam, Andhra Pradesh, 530003, India.,Molecular Modelling Research Lab, Department of Chemistry, University College of Science, Osmania University, Hyderabad, Telangana, India
| | - Vasavi Malkhed
- Molecular Modelling Research Lab, Department of Chemistry, University College of Science, Osmania University, Hyderabad, Telangana, India
| | - Kiran Kumar Mustyala
- Molecular Modelling Research Lab, Department of Chemistry, University College of Science, Osmania University, Hyderabad, Telangana, India
| | - Rajender Vadija
- Molecular Modelling Research Lab, Department of Chemistry, University College of Science, Osmania University, Hyderabad, Telangana, India
| | - Ramesh Malikanti
- Molecular Modelling Research Lab, Department of Chemistry, University College of Science, Osmania University, Hyderabad, Telangana, India
| | - Uma Vuruputuri
- Molecular Modelling Research Lab, Department of Chemistry, University College of Science, Osmania University, Hyderabad, Telangana, India
| | - Murali Krishna Kumar Muthyala
- Pharmaceutical Chemistry Research Lab, AU College of Pharmaceutical Sciences, Andhra University, Visakhapatnam, Andhra Pradesh, 530003, India.
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