1
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Zhu Q, Chen S, Funcke JB, Straub LG, Lin Q, Zhao S, Joung C, Zhang Z, Kim DS, Li N, Gliniak CM, Lee C, Cebrian-Serrano A, Pedersen L, Halberg N, Gordillo R, Kusminski CM, Scherer PE. PAQR4 regulates adipocyte function and systemic metabolic health by mediating ceramide levels. Nat Metab 2024; 6:1347-1366. [PMID: 38961186 DOI: 10.1038/s42255-024-01078-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Accepted: 06/06/2024] [Indexed: 07/05/2024]
Abstract
PAQR4 is an orphan receptor in the PAQR family with an unknown function in metabolism. Here, we identify a critical role of PAQR4 in maintaining adipose tissue function and whole-body metabolic health. We demonstrate that expression of Paqr4 specifically in adipocytes, in an inducible and reversible fashion, leads to partial lipodystrophy, hyperglycaemia and hyperinsulinaemia, which is ameliorated by wild-type adipose tissue transplants or leptin treatment. By contrast, deletion of Paqr4 in adipocytes improves healthy adipose remodelling and glucose homoeostasis in diet-induced obesity. Mechanistically, PAQR4 regulates ceramide levels by mediating the stability of ceramide synthases (CERS2 and CERS5) and, thus, their activities. Overactivation of the PQAR4-CERS axis causes ceramide accumulation and impairs adipose tissue function through suppressing adipogenesis and triggering adipocyte de-differentiation. Blocking de novo ceramide biosynthesis rescues PAQR4-induced metabolic defects. Collectively, our findings suggest a critical function of PAQR4 in regulating cellular ceramide homoeostasis and targeting PAQR4 offers an approach for the treatment of metabolic disorders.
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Affiliation(s)
- Qingzhang Zhu
- Touchstone Diabetes Center, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Shiuhwei Chen
- Touchstone Diabetes Center, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Jan-Bernd Funcke
- Touchstone Diabetes Center, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Leon G Straub
- Touchstone Diabetes Center, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Qian Lin
- Touchstone Diabetes Center, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Shangang Zhao
- Touchstone Diabetes Center, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA
- Sam and Ann Barshop Institute for Longevity and Aging Studies, Division of Endocrinology, Department of Medicine, University of Texas Health Science Center at San Antonio, San Antonio, TX, USA
| | - Chanmin Joung
- Touchstone Diabetes Center, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Zhuzhen Zhang
- Touchstone Diabetes Center, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Dae-Seok Kim
- Touchstone Diabetes Center, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Na Li
- Touchstone Diabetes Center, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Christy M Gliniak
- Touchstone Diabetes Center, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Charlotte Lee
- Center for Hypothalamic Research, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Alberto Cebrian-Serrano
- Institute for Diabetes and Obesity, Helmholtz Diabetes Center, Helmholtz Zentrum München, Neuherberg, Germany
- German Center for Diabetes Research (DZD), Neuherberg, Germany
| | - Line Pedersen
- Touchstone Diabetes Center, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA
- Department of Biomedicine, University of Bergen, Bergen, Norway
| | - Nils Halberg
- Department of Biomedicine, University of Bergen, Bergen, Norway
| | - Ruth Gordillo
- Touchstone Diabetes Center, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Christine M Kusminski
- Touchstone Diabetes Center, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Philipp E Scherer
- Touchstone Diabetes Center, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA.
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2
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Li M, Shou H, Martínez Corrales G, Svermova T, Franco AV, Alic N. Xbp1 targets canonical UPR ER and non-canonical pathways in separate tissues to promote longevity. iScience 2024; 27:109962. [PMID: 38832022 PMCID: PMC11144730 DOI: 10.1016/j.isci.2024.109962] [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: 11/14/2023] [Revised: 01/19/2024] [Accepted: 05/09/2024] [Indexed: 06/05/2024] Open
Abstract
Transcription factors can reprogram gene expression to promote longevity. Here, we investigate the role of Drosophila Xbp1. Xbp1 is activated by splicing of its primary transcript, Xbp1u, to generate Xbp1s, a key activator of the endoplasmic reticulum unfolded protein response (UPRER). We show that Xbp1s induces the conical UPRER in the gut, promoting longevity from the resident stem cells. In contrast, in the fat body, Xbp1s does not appear to trigger UPRER but alters metabolic gene expression and is still able to extend lifespan. In the fat body, Xbp1s and dFOXO impinge on the same target genes, including the PGC-1α orthologue Srl, and dfoxo requires Xbp1 to extend lifespan. Interestingly, unspliceable version of the Xbp1 mRNA, Xbp1u can also extend lifespan, hinting at roles in longevity for the poorly characterized Xbp1u transcription factor. These findings reveal the diverse functions of Xbp1 in longevity in the fruit fly.
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Affiliation(s)
- Mengjia Li
- Institute of Healthy Ageing and the Research Department of Genetics, Evolution, and Environment, University College London, London WC1E 6BT, UK
| | - Haocheng Shou
- Institute of Healthy Ageing and the Research Department of Genetics, Evolution, and Environment, University College London, London WC1E 6BT, UK
| | - Guillermo Martínez Corrales
- Institute of Healthy Ageing and the Research Department of Genetics, Evolution, and Environment, University College London, London WC1E 6BT, UK
| | - Tatiana Svermova
- Institute of Healthy Ageing and the Research Department of Genetics, Evolution, and Environment, University College London, London WC1E 6BT, UK
| | - Alessandra Vieira Franco
- Institute of Healthy Ageing and the Research Department of Genetics, Evolution, and Environment, University College London, London WC1E 6BT, UK
| | - Nazif Alic
- Institute of Healthy Ageing and the Research Department of Genetics, Evolution, and Environment, University College London, London WC1E 6BT, UK
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Wu YL, Lin ZJ, Li CC, Lin X, Shan SK, Guo B, Zheng MH, Wang Y, Li F, Yuan LQ. Adipose exosomal noncoding RNAs: Roles and mechanisms in metabolic diseases. Obes Rev 2024; 25:e13740. [PMID: 38571458 DOI: 10.1111/obr.13740] [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: 01/09/2023] [Revised: 02/02/2024] [Accepted: 02/28/2024] [Indexed: 04/05/2024]
Abstract
Exosomes are extracellular vesicles, measuring 40-160 nm in diameter, that are released by many cell types and tissues, including adipose tissue. Exosomes are critical mediators of intercellular communication and their contents are complex and diverse. In recent years, accumulating evidence has proved that multiple adipose tissue-derived exosomal noncoding RNAs (ncRNAs), including microRNAs (miRNAs), long noncoding RNAs (lncRNAs) and circular RNAs (circRNAs), play pivotal roles in the pathogenesis of diverse metabolic diseases, such as obesity. In this narrative review, we focus on the adipose tissue-derived exosomal ncRNAs, especially exosomal miRNAs, and their dysregulation in multiple types of metabolic diseases. A deeper understanding of the role of adipose tissue-derived exosomal ncRNAs may help provide new diagnostic and treatment methods for metabolic diseases.
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Affiliation(s)
- Yan-Lin Wu
- National Clinical Research Center for Metabolic Disease, Department of Metabolism and Endocrinology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Zheng-Jun Lin
- National Clinical Research Center for Metabolic Disease, Department of Metabolism and Endocrinology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Chang-Chun Li
- National Clinical Research Center for Metabolic Disease, Department of Metabolism and Endocrinology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Xiao Lin
- Department of Radiology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Su-Kang Shan
- National Clinical Research Center for Metabolic Disease, Department of Metabolism and Endocrinology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Bei Guo
- National Clinical Research Center for Metabolic Disease, Department of Metabolism and Endocrinology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Ming-Hui Zheng
- National Clinical Research Center for Metabolic Disease, Department of Metabolism and Endocrinology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yi Wang
- National Clinical Research Center for Metabolic Disease, Department of Metabolism and Endocrinology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Fuxingzi Li
- National Clinical Research Center for Metabolic Disease, Department of Metabolism and Endocrinology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Ling-Qing Yuan
- National Clinical Research Center for Metabolic Disease, Department of Metabolism and Endocrinology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
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4
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Yang Y, Yu T, Niu Z, Gao L. The predictive value of plasma uridine for type 2 diabetes and its atherosclerotic complications. Endocr Connect 2024; 13:e240075. [PMID: 38657664 PMCID: PMC11227051 DOI: 10.1530/ec-24-0075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Accepted: 04/24/2024] [Indexed: 04/26/2024]
Abstract
Objective Uridine might be a common link between pathological pathways in diabetes and cardiovascular diseases. This study aimed to investigate the predictive value of plasma uridine for type 2 diabetes (T2D) and T2D with atherosclerosis. Methods Individuals with T2D and healthy controls (n = 218) were randomly enrolled in a cross-sectional study. Patients with T2D were divided into two groups based on carotid ultrasound: patients with carotid atherosclerosis (CA) (group DCA) and patients without CA (group D). Plasma uridine was determined using HPLC-MS/MS. Correlation and logistic regression analyses were used to analyze the results. Results Fasting and postprandial uridine were significantly increased in patients with T2D compared with healthy individuals. Logistic regression suggested that fasting and postprandial uridine were independent risk factors for T2D. The receiver operating characteristic (ROC) curve showed that fasting uridine had a predictive value on T2D (95% CI, 0.686-0.863, sensitivity 74.3%, specificity 71.8%). Fasting uridine was positively correlated with LDL-c, FBG, and PBG and negatively correlated with fasting C-peptide (CP-0h) and HOMA-IS. The change in postprandial uridine from fasting baseline (Δuridine) was smaller in T2D patients with CA compared with those without (0.80 (0.04-2.46) vs 2.01 (0.49-3.15), P = 0.010). Δuridine was also associated with T2D with CA and negatively correlated with BMI, CP-0h, and HOMA-IR. Conclusion Fasting uridine has potential as a predictor of diabetes. Δuridine is closely associated with carotid atherosclerosis in patients with T2D.
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Affiliation(s)
- Yueyuan Yang
- Department of Endocrinology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Tingting Yu
- Department of Radiology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Zhili Niu
- Department of Clinical Laboratory, Institute of translational medicine, Renmin Hospital of Wuhan University, Wuhan, China
| | - Ling Gao
- Department of Endocrinology, Renmin Hospital of Wuhan University, Wuhan, China
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5
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Yang Y, Ye Y, Deng Y, Gao L. Uridine and its role in metabolic diseases, tumors, and neurodegenerative diseases. Front Physiol 2024; 15:1360891. [PMID: 38487261 PMCID: PMC10937367 DOI: 10.3389/fphys.2024.1360891] [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: 01/04/2024] [Accepted: 02/19/2024] [Indexed: 03/17/2024] Open
Abstract
Uridine is a pyrimidine nucleoside found in plasma and cerebrospinal fluid with a concentration higher than the other nucleosides. As a simple metabolite, uridine plays a pivotal role in various biological processes. In addition to nucleic acid synthesis, uridine is critical to glycogen synthesis through the formation of uridine diphosphate glucose in which promotes the production of UDP-GlcNAc in the hexosamine biosynthetic pathway and supplies UDP-GlcNAc for O-GlcNAcylation. This process can regulate protein modification and affect its function. Moreover, Uridine has an effect on body temperature and circadian rhythms, which can regulate the metabolic rate and the expression of metabolic genes. Abnormal levels of blood uridine have been found in people with diabetes and obesity, suggesting a link of uridine dysregulation and metabolic disorders. At present, the role of uridine in glucose metabolism and lipid metabolism is controversial, and the mechanism is not clear, but it shows the trend of long-term damage and short-term benefit. Therefore, maintaining uridine homeostasis is essential for maintaining basic functions and normal metabolism. This article summarizes the latest findings about the metabolic effects of uridine and the potential of uridine metabolism as therapeutic target in treatment of metabolic disorders.
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Affiliation(s)
- Yueyuan Yang
- Department of Endocrinology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Yahong Ye
- Department of Internal Medicine, QuanZhou Women’s and Children’s Hospital, QuanZhou, China
| | - Yingfeng Deng
- Department of Diabetes and Cancer Metabolism, City of Hope, Duarte, CA, United States
| | - Ling Gao
- Department of Endocrinology, Renmin Hospital of Wuhan University, Wuhan, China
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6
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Felix JB, Saha PK, de Groot E, Tan L, Sharp R, Anaya ES, Li Y, Quang H, Saidi N, Abushamat L, Ballantyne CM, Amos CI, Lorenzi PL, Klein S, Gao X, Hartig SM. N-acetylaspartate from fat cells regulates postprandial body temperature. RESEARCH SQUARE 2024:rs.3.rs-3835159. [PMID: 38260478 PMCID: PMC10802732 DOI: 10.21203/rs.3.rs-3835159/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2024]
Abstract
N-acetylaspartate (NAA), the brain's second most abundant metabolite, provides essential substrates for myelination through its hydrolysis. However, activities and physiological roles of NAA in other tissues remain unknown. Here, we show aspartoacylase (ASPA) expression in white adipose tissue (WAT) governs systemic NAA levels for postprandial body temperature regulation. Proteomics and mass spectrometry revealed NAA accumulation in WAT of Aspa knockout mice stimulated the pentose phosphate pathway and pyrimidine production. Stable isotope tracing confirmed higher incorporation of glucose-derived carbon into pyrimidine metabolites in Aspa knockout cells. Additionally, serum NAA positively correlates with the pyrimidine intermediate orotidine and this relationship predicted lower body mass index in humans. Using whole-body and tissue-specific knockout mouse models, we demonstrate that fat cells provided plasma NAA and suppressed postprandial body temperature elevation. Furthermore, exogenous NAA supplementation reduced body temperature. Our study unveils WAT-derived NAA as an endocrine regulator of postprandial body temperature and physiological homeostasis.
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Affiliation(s)
- Jessica B. Felix
- Division of Diabetes, Endocrinology, and Metabolism, Baylor College of Medicine, Houston, TX
- Department of Medicine, Baylor College of Medicine, Houston, TX
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX
| | - Pradip K. Saha
- Division of Diabetes, Endocrinology, and Metabolism, Baylor College of Medicine, Houston, TX
- Department of Medicine, Baylor College of Medicine, Houston, TX
| | - Evelyn de Groot
- Division of Diabetes, Endocrinology, and Metabolism, Baylor College of Medicine, Houston, TX
- Department of Medicine, Baylor College of Medicine, Houston, TX
- Cancer and Cellular Biology Program, Baylor College of Medicine, Houston, TX
| | - Lin Tan
- Metabolomics Core Facility, Department of Bioinformatics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Robert Sharp
- Division of Diabetes, Endocrinology, and Metabolism, Baylor College of Medicine, Houston, TX
- Department of Medicine, Baylor College of Medicine, Houston, TX
| | - Elizabeth S. Anaya
- Division of Diabetes, Endocrinology, and Metabolism, Baylor College of Medicine, Houston, TX
- Department of Medicine, Baylor College of Medicine, Houston, TX
- Cancer and Cellular Biology Program, Baylor College of Medicine, Houston, TX
| | - Yafang Li
- Department of Medicine, Baylor College of Medicine, Houston, TX
- Institute for Clinical and Translational Research, Baylor College of Medicine, Houston, TX
- Section of Epidemiology and Population Sciences, Department of Medicine, Baylor College of Medicine, Houston, TX
| | - Holly Quang
- Children’s Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine
| | - Nooshin Saidi
- Data Sciences Program, Whiting School of Engineering, Johns Hopkins University, Baltimore, MD
| | - Layla Abushamat
- Department of Medicine, Baylor College of Medicine, Houston, TX
- Cardiovascular Research, Department of Medicine, Baylor College of Medicine, Houston, TX
| | - Christie M. Ballantyne
- Department of Medicine, Baylor College of Medicine, Houston, TX
- Cardiovascular Research, Department of Medicine, Baylor College of Medicine, Houston, TX
| | - Christopher I. Amos
- Department of Medicine, Baylor College of Medicine, Houston, TX
- Institute for Clinical and Translational Research, Baylor College of Medicine, Houston, TX
- Section of Epidemiology and Population Sciences, Department of Medicine, Baylor College of Medicine, Houston, TX
| | - Philip L. Lorenzi
- Metabolomics Core Facility, Department of Bioinformatics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Samuel Klein
- Center for Human Nutrition, Washington University School of Medicine, St. Louis, MO
| | - Xia Gao
- Children’s Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine
| | - Sean M. Hartig
- Division of Diabetes, Endocrinology, and Metabolism, Baylor College of Medicine, Houston, TX
- Department of Medicine, Baylor College of Medicine, Houston, TX
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX
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7
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Namasivayam S, Tilves C, Ding H, Wu S, Domingue JC, Ruiz-Bedoya C, Shah A, Bohrnsen E, Schwarz B, Bacorn M, Chen Q, Levy S, Dominguez Bello MG, Jain SK, Sears CL, Mueller NT, Hourigan SK. Fecal transplant from vaginally seeded infants decreases intraabdominal adiposity in mice. Gut Microbes 2024; 16:2353394. [PMID: 38743047 PMCID: PMC11095576 DOI: 10.1080/19490976.2024.2353394] [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: 10/30/2023] [Accepted: 05/06/2024] [Indexed: 05/16/2024] Open
Abstract
Exposing C-section infants to the maternal vaginal microbiome, coined "vaginal seeding", partially restores microbial colonization. However, whether vaginal seeding decreases metabolic disease risk is unknown. Therefore, we assessed the effect of vaginal seeding of human infants on adiposity in a murine model. Germ-free mice were colonized with transitional stool from human infants who received vaginal seeding or control (placebo) seeding in a double-blind randomized trial. There was a reduction in intraabdominal adipose tissue (IAAT) volume in male mice that received stool from vaginally seeded infants compared to control infants. Higher levels of isoleucine and lower levels of nucleic acid metabolites were observed in controls and correlated with increased IAAT. This suggests that early changes in the gut microbiome and metabolome caused by vaginal seeding have a positive impact on metabolic health.
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Affiliation(s)
- Sivaranjani Namasivayam
- Clinical Microbiome Unit (CMU), Laboratory of Host Immunity and Microbiome, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Curtis Tilves
- Department of Epidemiology, Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD, USA
- Department of Epidemiology, Welch Center for Prevention, Epidemiology and Clinical Research, Baltimore, MD, USA
| | - Hua Ding
- Division of Infectious Diseases, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Shaoguang Wu
- Division of Infectious Diseases, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Jada C Domingue
- Division of Infectious Diseases, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Camilo Ruiz-Bedoya
- Center for Infection and Inflammation Imaging Research, Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Ankit Shah
- Inova Health System, Inova Women’s Hospital, Falls Church, VA, USA
| | - Eric Bohrnsen
- Research Technologies Branch, Rocky Mountain Laboratories, National Institute of Allergy and Infectious Diseases; National Institutes of Health, Hamilton, MT, USA
| | - Benjamin Schwarz
- Research Technologies Branch, Rocky Mountain Laboratories, National Institute of Allergy and Infectious Diseases; National Institutes of Health, Hamilton, MT, USA
| | - Mickayla Bacorn
- Clinical Microbiome Unit (CMU), Laboratory of Host Immunity and Microbiome, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Qing Chen
- Clinical Microbiome Unit (CMU), Laboratory of Host Immunity and Microbiome, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Shira Levy
- Clinical Microbiome Unit (CMU), Laboratory of Host Immunity and Microbiome, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Maria Gloria Dominguez Bello
- Departments of Biochemistry and Microbiology, Rutgers University, New Brunswick, NJ, USA
- Humans and the microbiome program, Canadian Institute for Advanced Research (CIFAR), Toronto, ON, Canada
| | - Sanjay K Jain
- Center for Infection and Inflammation Imaging Research, Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Cynthia L Sears
- Division of Infectious Diseases, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Noel T Mueller
- Department of Epidemiology, Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD, USA
- Department of Epidemiology, Welch Center for Prevention, Epidemiology and Clinical Research, Baltimore, MD, USA
| | - Suchitra K Hourigan
- Clinical Microbiome Unit (CMU), Laboratory of Host Immunity and Microbiome, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
- Division of Pediatric Gastroenterology, Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, MD, USA
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8
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Ward MH, Nwosu ZC, Lyssiotis CA. Uridine: as sweet as sugar for some cells? Cell Res 2023; 33:898-899. [PMID: 37567975 PMCID: PMC10709445 DOI: 10.1038/s41422-023-00860-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/13/2023] Open
Affiliation(s)
- Matthew H Ward
- Department of Chemistry, Washington University in St. Louis, St. Louis, MO, USA
- Department of Medicine, Washington University in St. Louis, St. Louis, MO, USA
| | - Zeribe C Nwosu
- Department of Molecular & Integrative Physiology, University of Michigan, Ann Arbor, MI, USA
| | - Costas A Lyssiotis
- Department of Molecular & Integrative Physiology, University of Michigan, Ann Arbor, MI, USA.
- Department of Internal Medicine, Division of Gastroenterology, University of Michigan, Ann Arbor, MI, USA.
- Rogel Cancer Center, University of Michigan, Ann Arbor, MI, USA.
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9
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Taylor AH, Konje JC, Ayakannu T. Identification of Potentially Novel Molecular Targets of Endometrial Cancer Using a Non-Biased Proteomic Approach. Cancers (Basel) 2023; 15:4665. [PMID: 37760635 PMCID: PMC10527058 DOI: 10.3390/cancers15184665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 08/29/2023] [Accepted: 09/04/2023] [Indexed: 09/29/2023] Open
Abstract
The present study was aimed at identifying novel proteins in endometrial cancer (EC), employing proteomic analysis of tissues obtained after surgery. A differential MS-based proteomic analysis was conducted from whole tissues dissected from biopsies from post-menopausal women, histologically confirmed as endometrial cancer (two endometrioid and two serous; n = 4) or normal atrophic endometrium (n = 4), providing 888 differentially expressed proteins with 246 of these previously documented elsewhere as expressed in EC and 372 proteins not previously demonstrated to be expressed in EC but associated with other types of cancer. Additionally, 33 proteins not recorded previously in PubMed as being expressed in any forms of cancer were also identified, with only 26 of these proteins having a publication associated with their expression patterns or putative functions. The putative functions of the 26 proteins (GRN, APP, HEXA, CST3, CAD, QARS, SIAE, WARS, MYH8, CLTB, GOLIM4, SCARB2, BOD1L1, C14orf142, C9orf142, CCDC13, CNPY4, FAM169A, HN1L, PIGT, PLCL1, PMFBP1, SARS2, SCPEP1, SLC25A24 and ZC3H4) in other tissues point towards and provide a basis for further investigation of these previously unrecognised novel EC proteins. The developmental biology, disease, extracellular matrix, homeostatic, immune, metabolic (both RNA and protein), programmed cell death, signal transduction, molecular transport, transcriptional networks and as yet uncharacterised pathways indicate that these proteins are potentially involved in endometrial carcinogenesis and thus may be important in EC diagnosis, prognostication and treatment and thus are worthy of further investigation.
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Affiliation(s)
- Anthony H. Taylor
- Reproductive Sciences Section, Department of Cancer Studies & Molecular Medicine, University of Leicester, Leicester LE1 7RH, UK; (A.H.T.); (J.C.K.)
- Department of Molecular and Cell Biology, University of Leicester, Leicester LE1 7RH, UK
| | - Justin C. Konje
- Reproductive Sciences Section, Department of Cancer Studies & Molecular Medicine, University of Leicester, Leicester LE1 7RH, UK; (A.H.T.); (J.C.K.)
- Department of Health Sciences, University of Leicester, Leicester LE1 7RH, UK
- Weill Cornell Medicine-Qatar, Al Rayyan, Doha P.O. Box 24144, Qatar
| | - Thangesweran Ayakannu
- Reproductive Sciences Section, Department of Cancer Studies & Molecular Medicine, University of Leicester, Leicester LE1 7RH, UK; (A.H.T.); (J.C.K.)
- Department of Obstetrics & Gynaecology, Taylor’s University, Subang Jaya 47500, Selangor, Malaysia
- Sunway Medical Centre, Bandar Sunway, Subang Jaya 47500, Selangor, Malaysia
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10
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Zhou NN, Wang T, Lin YX, Xu R, Wu HX, Ding FF, Qiao F, Du ZY, Zhang ML. Uridine alleviates high-carbohydrate diet-induced metabolic syndromes by activating sirt1/AMPK signaling pathway and promoting glycogen synthesis in Nile tilapia ( Oreochromis niloticus). ANIMAL NUTRITION (ZHONGGUO XU MU SHOU YI XUE HUI) 2023; 14:56-66. [PMID: 37252330 PMCID: PMC10208930 DOI: 10.1016/j.aninu.2023.03.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 01/06/2023] [Accepted: 03/21/2023] [Indexed: 05/31/2023]
Abstract
Carbohydrates have a protein sparing effect, but long-term feeding of a high-carbohydrate diet (HCD) leads to metabolic disorders due to the limited utilization efficiency of carbohydrates in fish. How to mitigate the negative effects induced by HCD is crucial for the rapid development of aquaculture. Uridine is a pyrimidine nucleoside that plays a vital role in regulating lipid and glucose metabolism, but whether uridine can alleviate metabolic syndromes induced by HCD remains unknown. In this study, a total of 480 Nile tilapia (Oreochromis niloticus) (average initial weight 5.02 ± 0.03 g) were fed with 4 diets, including a control diet (CON), HCD, HCD + 500 mg/kg uridine (HCUL) and HCD + 5,000 mg/kg uridine (HCUH), for 8 weeks. The results showed that addition of uridine decreased hepatic lipid, serum glucose, triglyceride and cholesterol (P < 0.05). Further analysis indicated that higher concentration of uridine activated the sirtuin1 (sirt1)/adenosine 5-monophosphate-activated protein kinase (AMPK) signaling pathway to increase lipid catabolism and glycolysis while decreasing lipogenesis (P < 0.05). Besides, uridine increased the activity of glycogen synthesis-related enzymes (P < 0.05). This study suggested that uridine could alleviate HCD-induced metabolic syndrome by activating the sirt1/AMPK signaling pathway and promoting glycogen synthesis. This finding reveals the function of uridine in fish metabolism and facilitates the development of new additives in aquatic feeds.
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11
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Wang Z, Zhang Y, Zhou T, Wu X. N-carbamoyl aspartate reduced body weight by stimulating the thermogenesis of iBAT. Biochem Biophys Res Commun 2023; 665:152-158. [PMID: 37163935 DOI: 10.1016/j.bbrc.2023.04.094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 04/17/2023] [Accepted: 04/25/2023] [Indexed: 05/12/2023]
Abstract
Uridine has formerly been shown to alleviate obesity and hepatic lipid accumulation. N-carbamoyl aspartate (NCA) provides carbon atoms to uridine in de novo pyrimidine biosynthesis pathway. However, whether NCA is involved in the lipid metabolism remains elusive. Here we showed that NCA supplementation significantly decreased (P < 0.05) serum cholesterol (CHOL), high-density lipoprotein (HDL), lactate dehydrogenase (LDH), and alkaline phosphatase (ALP) levels of mice, and significantly increased (P < 0.05) relative mRNA expression of genes related to the synthesis of pyrimidine nucleotides and polyunsaturated fatty acids. Besides, supplemented with NCA significantly decreased body weight and area under the curve (AUC), and increased body temperature in the high-fat diet fed mice. For further, relative protein expression of uridine monophosphate synthase (UMPS), sterol regulatory element-binding protein 1(SREBP-1) and phosphorylated hormone-sensitive triglyceride lipase (P-HSL) in the liver, and uncoupling protein 1 (UCP-1) in interscapular brown adipose tissue (iBAT) also showed upregulated in the high-fat diet fed mice. Thus, NCA promoted de novo synthesis of pyrimidine and polyunsaturated fatty acid, and reduced body weight by stimulating high-fat diet-induced thermogenesis of iBAT.
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Affiliation(s)
- Zhefeng Wang
- CAS Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, 410125, PR China; College of Advanced Agricultural Sciences, University of Chinese Academy of Science, Beijing, 100049, PR China
| | - Yumei Zhang
- CAS Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, 410125, PR China; State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, PR China
| | - Tiantian Zhou
- CAS Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, 410125, PR China; College of Advanced Agricultural Sciences, University of Chinese Academy of Science, Beijing, 100049, PR China
| | - Xin Wu
- CAS Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, 410125, PR China; Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, PR China; College of Advanced Agricultural Sciences, University of Chinese Academy of Science, Beijing, 100049, PR China.
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12
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Niu K, Bai P, Zhang J, Feng X, Qiu F. Cytidine Alleviates Dyslipidemia and Modulates the Gut Microbiota Composition in ob/ob Mice. Nutrients 2023; 15:nu15051147. [PMID: 36904146 PMCID: PMC10005144 DOI: 10.3390/nu15051147] [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: 12/05/2022] [Revised: 02/17/2023] [Accepted: 02/23/2023] [Indexed: 03/03/2023] Open
Abstract
Cytidine and uridine are endogenous metabolites in the pyrimidine metabolism pathway, and cytidine is a substrate that can be metabolized into uridine via cytidine deaminase. Uridine has been widely reported to be effective in regulating lipid metabolism. However, whether cytidine could ameliorate lipid metabolism disorder has not yet been investigated. In this research, ob/ob mice were used, and the effect of cytidine (0.4 mg/mL in drinking water for five weeks) on lipid metabolism disorder was evaluated in terms of an oral glucose tolerance test, serum lipid levels, liver histopathological analysis and gut microbiome analysis. Uridine was used as a positive control. Our findings reveal that cytidine could alleviate certain aspects of dyslipidemia and improve hepatic steatosis via modulating the gut microbiota composition in ob/ob mice, especially increasing the abundance of short-chain fatty acids-producing microbiota. These results suggest that cytidine supplementation could be a potential therapeutic approach for dyslipidemia.
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Affiliation(s)
| | | | | | - Xinchi Feng
- Correspondence: (X.F.); (F.Q.); Tel.: +86-22-595-6223 (X.F.)
| | - Feng Qiu
- Correspondence: (X.F.); (F.Q.); Tel.: +86-22-595-6223 (X.F.)
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13
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Hanssen R, Rigoux L, Albus K, Kretschmer AC, Edwin Thanarajah S, Chen W, Hinze Y, Giavalisco P, Steculorum SM, Cornely OA, Brüning JC, Tittgemeyer M. Circulating uridine dynamically and adaptively regulates food intake in humans. Cell Rep Med 2023; 4:100897. [PMID: 36652907 PMCID: PMC9873946 DOI: 10.1016/j.xcrm.2022.100897] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 05/02/2022] [Accepted: 12/15/2022] [Indexed: 01/18/2023]
Abstract
Feeding behavior must be continuously adjusted to match energy needs. Recent discoveries in murine models identified uridine as a regulator of energy balance. Here, we explore its contribution to the complex control of food intake in humans by administering a single dose of uridine monophosphate (UMP; 0.5 or 1 g) to healthy participants in two placebo-controlled studies designed to assess food behavior (registration: DRKS00014874). We establish that endogenous circulating uridine correlates with hunger and ensuing food consumption. It also dynamically decreases upon caloric ingestion, prompting its potential role in a negative feedback loop regulating energy intake. We further demonstrate that oral UMP administration temporarily increases circulating uridine and-when within the physiological range-enhances hunger and caloric intake proportionally to participants' basal energy needs. Overall, uridine appears as a potential target to tackle dysfunctions of feeding behavior in humans.
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Affiliation(s)
- Ruth Hanssen
- Max-Planck-Institute for Metabolism Research, Gleueler Str. 50, 50931 Cologne, Germany,University of Cologne, Faculty of Medicine and University Hospital Cologne, Policlinic for Endocrinology, Diabetes and Preventive Medicine (PEPD), Kerpener Str. 62, 50937 Cologne, Germany
| | - Lionel Rigoux
- Max-Planck-Institute for Metabolism Research, Gleueler Str. 50, 50931 Cologne, Germany
| | - Kerstin Albus
- University of Cologne, Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), Joseph-Stelzmann-Straße 26, 50931 Cologne, Germany,University of Cologne, Faculty of Medicine and University Hospital Cologne, Department I of Internal Medicine, Center for Integrated Oncology Aachen Bonn Cologne Duesseldorf (CIO ABCD) and Excellence Center for Medical Mycology (ECMM), Kerpener Str. 62, 50937 Cologne, Germany
| | - Alina Chloé Kretschmer
- Max-Planck-Institute for Metabolism Research, Gleueler Str. 50, 50931 Cologne, Germany,University of Cologne, Faculty of Medicine and University Hospital Cologne, Policlinic for Endocrinology, Diabetes and Preventive Medicine (PEPD), Kerpener Str. 62, 50937 Cologne, Germany
| | - Sharmili Edwin Thanarajah
- Max-Planck-Institute for Metabolism Research, Gleueler Str. 50, 50931 Cologne, Germany,Department of Psychiatry, Psychosomatic Medicine and Psychotherapy, University Hospital Frankfurt, Heinrich-Hoffmann-Strasse 10, 60528 Frankfurt am Main, Germany
| | - Weiyi Chen
- Max-Planck-Institute for Metabolism Research, Gleueler Str. 50, 50931 Cologne, Germany,University of Cologne, Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), Joseph-Stelzmann-Straße 26, 50931 Cologne, Germany
| | - Yvonne Hinze
- Max Planck Institute for Biology of Ageing, Metabolomics Core Facility, Joseph-Stelzmann-Straße 9B, 50931 Cologne, Germany
| | - Patrick Giavalisco
- Max Planck Institute for Biology of Ageing, Metabolomics Core Facility, Joseph-Stelzmann-Straße 9B, 50931 Cologne, Germany
| | - Sophie M. Steculorum
- Max-Planck-Institute for Metabolism Research, Gleueler Str. 50, 50931 Cologne, Germany,University of Cologne, Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), Joseph-Stelzmann-Straße 26, 50931 Cologne, Germany,German Center of Diabetes Research (DZD), Ingolstädter Landstrasse 1, 85764 Neuherberg, Germany
| | - Oliver A. Cornely
- University of Cologne, Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), Joseph-Stelzmann-Straße 26, 50931 Cologne, Germany,University of Cologne, Faculty of Medicine and University Hospital Cologne, Department I of Internal Medicine, Center for Integrated Oncology Aachen Bonn Cologne Duesseldorf (CIO ABCD) and Excellence Center for Medical Mycology (ECMM), Kerpener Str. 62, 50937 Cologne, Germany,German Centre for Infection Research (DZIF), Partner Site Bonn-Cologne, Herderstr. 52, 50931 Cologne, Germany,University of Cologne, Faculty of Medicine and University Hospital Cologne, Clinical Trials Centre Cologne (ZKS Köln), Gleueler Str. 269, 50935 Cologne, Germany
| | - Jens C. Brüning
- Max-Planck-Institute for Metabolism Research, Gleueler Str. 50, 50931 Cologne, Germany,University of Cologne, Faculty of Medicine and University Hospital Cologne, Policlinic for Endocrinology, Diabetes and Preventive Medicine (PEPD), Kerpener Str. 62, 50937 Cologne, Germany,University of Cologne, Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), Joseph-Stelzmann-Straße 26, 50931 Cologne, Germany
| | - Marc Tittgemeyer
- Max-Planck-Institute for Metabolism Research, Gleueler Str. 50, 50931 Cologne, Germany; University of Cologne, Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), Joseph-Stelzmann-Straße 26, 50931 Cologne, Germany.
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14
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Ge M, Huang L, Ma Y, Sun S, Wu L, Xu W, Yang D. MLN4924 Treatment Diminishes Excessive Lipid Storage in High-Fat Diet-Induced Non-Alcoholic Fatty Liver Disease (NAFLD) by Stimulating Hepatic Mitochondrial Fatty Acid Oxidation and Lipid Metabolites. Pharmaceutics 2022; 14:pharmaceutics14112460. [PMID: 36432651 PMCID: PMC9696831 DOI: 10.3390/pharmaceutics14112460] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Revised: 11/03/2022] [Accepted: 11/11/2022] [Indexed: 11/17/2022] Open
Abstract
MLN4924 is a selective neddylation inhibitor that has shown great potential in treating several cancer and metabolic diseases, including obesity. However, it remains largely unknown whether MLN4924 has similar effect on non-alcoholic liver disease (NAFLD), which is closely associated with metabolic disorders. Here, we investigated the role of MLN4924 in NAFLD treatment and the underlying mechanism of the action using primary hepatocytes stimulated with free fatty acid, as well as high-fat diet (HFD)-induced NAFLD mouse models. We found that MLN4924 can inhibit the accumulation of lipid and reduce the expression of peroxisome proliferator-activated receptor γ (PPARγ), a key player in adipocyte differentiation and function in both in vivo and in vitro models. Moreover, we verified its important role in decreasing the synthesis and accumulation of fat in the liver, thus mitigating the development of NAFLD in the mouse model. The body weight and fat mass in MLN4924-treated animals were significantly reduced compared to the control group, while the metabolic activity, including O2 consumption, CO2 and heat production, also increased in these animals. Importantly, we demonstrated for the first time that MLN4924 can markedly boost mitochondrial fat acid oxidation (FAO) to alter liver lipid metabolism. Finally, we compared the metabolites between MLN4924-treated and untreated Huh7 cells after fatty acid induction using lipidomics methods and techniques. We found induction of several metabolites in the treated cells, including Beta-guanidinopropionic acid (b-GPA) and Fluphenazine, which was in accordance with the increase of FAO and metabolism. Together, our study provided a link between neddylation modification and energy metabolism, as well as evidence for targeting neddylation as an emerging therapeutic approach to tackle NAFLD.
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Affiliation(s)
- Mengxiao Ge
- Department of Digestive Diseases of Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Linlin Huang
- Department of Digestive Diseases of Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Yinjun Ma
- Key Laboratory of Metabolism and Molecular Medicine of the Ministry of Education, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
| | - Shuangyi Sun
- Department of Digestive Diseases of Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Lijun Wu
- Department of Library, Fudan University, 220 Handan Road, Shanghai 200433, China
| | - Wei Xu
- Department of Immunology, School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
- Correspondence: (W.X.); (D.Y.)
| | - Dongqin Yang
- Department of Digestive Diseases of Huashan Hospital, Fudan University, Shanghai 200040, China
- Correspondence: (W.X.); (D.Y.)
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15
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Metabolic Adaptation in Lactation: Insulin-dependent and -independent Glycemic Control. J Transl Int Med 2022; 10:191-196. [PMID: 36776235 PMCID: PMC9901550 DOI: 10.2478/jtim-2022-0036] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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16
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Zhu Q, Zhu Y, Hepler C, Zhang Q, Park J, Gliniak C, Henry GH, Crewe C, Bu D, Zhang Z, Zhao S, Morley T, Li N, Kim DS, Strand D, Deng Y, Robino JJ, Varlamov O, Gordillo R, Kolonin MG, Kusminski CM, Gupta RK, Scherer PE. Adipocyte mesenchymal transition contributes to mammary tumor progression. Cell Rep 2022; 40:111362. [PMID: 36103820 PMCID: PMC9533474 DOI: 10.1016/j.celrep.2022.111362] [Citation(s) in RCA: 37] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 04/14/2022] [Accepted: 08/23/2022] [Indexed: 11/06/2022] Open
Abstract
Obesity is associated with increased cancer incidence and progression. However, the relationship between adiposity and cancer remains poorly understood at the mechanistic level. Here, we report that adipocytes from tumor-invasive mammary fat undergo de-differentiation to fibroblast-like precursor cells during tumor progression and integrate into the tumor microenvironment. Single-cell sequencing reveals that these de-differentiated adipocytes lose their original identities and transform into multiple cell types, including myofibroblast- and macrophage-like cells, with their characteristic features involved in immune response, inflammation, and extracellular matrix remodeling. The de-differentiated cells are metabolically distinct from tumor-associated fibroblasts but exhibit comparable effects on tumor cell proliferation. Inducing de-differentiation by Xbp1s overexpression promotes tumor progression despite lower adiposity. In contrast, promoting lipid-storage capacity in adipocytes through MitoNEET overexpression curbs tumor growth despite greater adiposity. Collectively, the metabolic interplay between tumor cells and adipocytes induces adipocyte mesenchymal transition and contributes to reconfigure the stroma into a more tumor-friendly microenvironment. Zhu et al. report that in mammary tumors, adipocytes undergo metabolic reprograming and de-differentiation. They acquire myofibroblast- and macrophage-like features, a process referred to as “adipocyte mesenchymal transition,” which modifies the tumor microenvironment via ECM remodeling and activation of the immune response and likely contributes to tumor progression.
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Affiliation(s)
- Qingzhang Zhu
- Touchstone Diabetes Center, Department of Internal Medicine, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Yi Zhu
- Touchstone Diabetes Center, Department of Internal Medicine, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Chelsea Hepler
- Touchstone Diabetes Center, Department of Internal Medicine, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Qianbin Zhang
- Touchstone Diabetes Center, Department of Internal Medicine, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Jiyoung Park
- Touchstone Diabetes Center, Department of Internal Medicine, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Department of Biological Sciences, School of Life Sciences, Ulsan National Institute of Science and Technology, Ulsan, South Korea
| | - Christy Gliniak
- Touchstone Diabetes Center, Department of Internal Medicine, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Gervaise H Henry
- Department of Urology, UT Southwestern Medical Center, Dallas, TX 75390, USA
| | - Clair Crewe
- Touchstone Diabetes Center, Department of Internal Medicine, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Dawei Bu
- Touchstone Diabetes Center, Department of Internal Medicine, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Zhuzhen Zhang
- Touchstone Diabetes Center, Department of Internal Medicine, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Shangang Zhao
- Touchstone Diabetes Center, Department of Internal Medicine, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Thomas Morley
- Touchstone Diabetes Center, Department of Internal Medicine, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Na Li
- Touchstone Diabetes Center, Department of Internal Medicine, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Dae-Seok Kim
- Touchstone Diabetes Center, Department of Internal Medicine, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Douglas Strand
- Department of Urology, UT Southwestern Medical Center, Dallas, TX 75390, USA
| | - Yingfeng Deng
- Touchstone Diabetes Center, Department of Internal Medicine, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Jacob J Robino
- Division of Cardiometabolic Health, Oregon National Primate Research Center, Oregon Health & Science University, Beaverton, OR 97006, USA
| | - Oleg Varlamov
- Division of Cardiometabolic Health, Oregon National Primate Research Center, Oregon Health & Science University, Beaverton, OR 97006, USA
| | - Ruth Gordillo
- Touchstone Diabetes Center, Department of Internal Medicine, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Mikhail G Kolonin
- The Brown Foundation Institute of Molecular Medicine for the Prevention of Disease, The University of Texas Health Sciences Center at Houston, Houston, TX 77030, USA
| | - Christine M Kusminski
- Touchstone Diabetes Center, Department of Internal Medicine, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Rana K Gupta
- Touchstone Diabetes Center, Department of Internal Medicine, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Philipp E Scherer
- Touchstone Diabetes Center, Department of Internal Medicine, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA.
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17
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Raja R, Fonseka O, Ganenthiran H, Liu W. The multifaceted roles of ER and Golgi in metabolic cardiomyopathy. Front Cardiovasc Med 2022; 9:999044. [PMID: 36119738 PMCID: PMC9479098 DOI: 10.3389/fcvm.2022.999044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Accepted: 08/15/2022] [Indexed: 01/10/2023] Open
Abstract
Metabolic cardiomyopathy is a significant global financial and health challenge; however, pathophysiological mechanisms governing this entity remain poorly understood. Among the main features of metabolic cardiomyopathy, the changes to cellular lipid metabolism have been studied and targeted for the discovery of novel treatment strategies obtaining contrasting results. The endoplasmic reticulum (ER) and Golgi apparatus (GA) carry out protein modification, sorting, and secretion activities that are more commonly studied from the perspective of protein quality control; however, they also drive the maintenance of lipid homeostasis. In response to metabolic stress, ER and GA regulate the expression of genes involved in cardiac lipid biogenesis and participate in lipid droplet formation and degradation. Due to the varied roles these organelles play, this review will focus on recapitulating the alterations and crosstalk between ER, GA, and lipid metabolism in cardiac metabolic syndrome.
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18
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Chen Y, Wu Z, Huang S, Wang X, He S, Liu L, Hu Y, Chen L, Chen P, Liu S, He S, Shan B, Zheng L, Duan SZ, Song Z, Jiang L, Wang QA, Gan Z, Song BL, Liu J, Rui L, Shao M, Liu Y. Adipocyte IRE1α promotes PGC1α mRNA decay and restrains adaptive thermogenesis. Nat Metab 2022; 4:1166-1184. [PMID: 36123394 DOI: 10.1038/s42255-022-00631-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Accepted: 08/01/2022] [Indexed: 12/23/2022]
Abstract
Adipose tissue undergoes thermogenic remodeling in response to thermal stress and metabolic cues, playing a crucial role in regulating energy expenditure and metabolic homeostasis. Endoplasmic reticulum (ER) stress is associated with adipose dysfunction in obesity and metabolic disease. It remains unclear, however, if ER stress-signaling in adipocytes mechanistically mediates dysregulation of thermogenic fat. Here we show that inositol-requiring enzyme 1α (IRE1α), a key ER stress sensor and signal transducer, acts in both white and beige adipocytes to impede beige fat activation. Ablation of adipocyte IRE1α promotes browning/beiging of subcutaneous white adipose tissue following cold exposure or β3-adrenergic stimulation. Loss of IRE1α alleviates diet-induced obesity and augments the anti-obesity effect of pharmacologic β3-adrenergic stimulation. Notably, IRE1α suppresses stimulated lipolysis and degrades Ppargc1a messenger RNA through its RNase activity to downregulate the thermogenic gene program. Hence, blocking IRE1α bears therapeutic potential in unlocking adipocytes' thermogenic capacity to combat obesity and metabolic disorders.
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Affiliation(s)
- Yong Chen
- Hubei Key Laboratory of Cell Homeostasis, College of Life Sciences; TaiKang Center for Life and Medical Sciences; The Institute for Advanced Studies; Frontier Science Center for Immunology and Metabolism, Wuhan University, Wuhan, China
| | - Zhuyin Wu
- Hubei Key Laboratory of Cell Homeostasis, College of Life Sciences; TaiKang Center for Life and Medical Sciences; The Institute for Advanced Studies; Frontier Science Center for Immunology and Metabolism, Wuhan University, Wuhan, China
| | - Shijia Huang
- Hubei Key Laboratory of Cell Homeostasis, College of Life Sciences; TaiKang Center for Life and Medical Sciences; The Institute for Advanced Studies; Frontier Science Center for Immunology and Metabolism, Wuhan University, Wuhan, China
| | - Xiaoxia Wang
- Shanghai Institute of Immunology, Department of Immunology and Microbiology, Shanghai Jiao Tong University School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Sijia He
- Hubei Key Laboratory of Cell Homeostasis, College of Life Sciences; TaiKang Center for Life and Medical Sciences; The Institute for Advanced Studies; Frontier Science Center for Immunology and Metabolism, Wuhan University, Wuhan, China
| | - Lin Liu
- State Key Laboratory of Pharmaceutical Biotechnology and MOE Key Laboratory of Model Animals for Disease Study, Department of Spine Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Jiangsu Key Laboratory of Molecular Medicine, Chemistry and Biomedicine Innovation Center (ChemBIC), Model Animal Research Center, Nanjing University Medical School, Nanjing University, Nanjing, China
| | - Yurong Hu
- Hubei Key Laboratory of Cell Homeostasis, College of Life Sciences; TaiKang Center for Life and Medical Sciences; The Institute for Advanced Studies; Frontier Science Center for Immunology and Metabolism, Wuhan University, Wuhan, China
| | - Li Chen
- Hubei Key Laboratory of Cell Homeostasis, College of Life Sciences; TaiKang Center for Life and Medical Sciences; The Institute for Advanced Studies; Frontier Science Center for Immunology and Metabolism, Wuhan University, Wuhan, China
| | - Peng Chen
- Hubei Key Laboratory of Cell Homeostasis, College of Life Sciences; TaiKang Center for Life and Medical Sciences; The Institute for Advanced Studies; Frontier Science Center for Immunology and Metabolism, Wuhan University, Wuhan, China
| | - Songzi Liu
- Hubei Key Laboratory of Cell Homeostasis, College of Life Sciences; TaiKang Center for Life and Medical Sciences; The Institute for Advanced Studies; Frontier Science Center for Immunology and Metabolism, Wuhan University, Wuhan, China
| | - Shengqi He
- Hubei Key Laboratory of Cell Homeostasis, College of Life Sciences; TaiKang Center for Life and Medical Sciences; The Institute for Advanced Studies; Frontier Science Center for Immunology and Metabolism, Wuhan University, Wuhan, China
| | - Bo Shan
- Zhejiang Provincial Key Laboratory of Pancreatic Disease, The First Affiliated Hospital, and Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou, China
| | - Ling Zheng
- Hubei Key Laboratory of Cell Homeostasis, College of Life Sciences; TaiKang Center for Life and Medical Sciences; The Institute for Advanced Studies; Frontier Science Center for Immunology and Metabolism, Wuhan University, Wuhan, China
| | - Sheng-Zhong Duan
- Laboratory of Oral Microbiota and Systemic Diseases, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China
| | - Zhiyin Song
- Hubei Key Laboratory of Cell Homeostasis, College of Life Sciences; TaiKang Center for Life and Medical Sciences; The Institute for Advanced Studies; Frontier Science Center for Immunology and Metabolism, Wuhan University, Wuhan, China
| | - Lei Jiang
- Comprehensive Cancer Center, Beckman Research Institute, City of Hope Medical Center, Duarte, CA, USA
- Department of Molecular & Cellular Endocrinology, Diabetes & Metabolism Research Institute, City of Hope Medical Center, Duarte, CA, USA
| | - Qiong A Wang
- Comprehensive Cancer Center, Beckman Research Institute, City of Hope Medical Center, Duarte, CA, USA
- Department of Molecular & Cellular Endocrinology, Diabetes & Metabolism Research Institute, City of Hope Medical Center, Duarte, CA, USA
| | - Zhenji Gan
- State Key Laboratory of Pharmaceutical Biotechnology and MOE Key Laboratory of Model Animals for Disease Study, Department of Spine Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Jiangsu Key Laboratory of Molecular Medicine, Chemistry and Biomedicine Innovation Center (ChemBIC), Model Animal Research Center, Nanjing University Medical School, Nanjing University, Nanjing, China
| | - Bao-Liang Song
- Hubei Key Laboratory of Cell Homeostasis, College of Life Sciences; TaiKang Center for Life and Medical Sciences; The Institute for Advanced Studies; Frontier Science Center for Immunology and Metabolism, Wuhan University, Wuhan, China
| | - Jianmiao Liu
- Cellular Signaling Laboratory, Key Laboratory of Molecular Biophysics of Ministry of Education, Huazhong University of Science and Technology, Wuhan, China
| | - Liangyou Rui
- Department of Molecular and Integrative Physiology, the University of Michigan Medical School, Ann Arbor, MI, USA
| | - Mengle Shao
- The Center for Microbes, Development and Health, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, China
| | - Yong Liu
- Hubei Key Laboratory of Cell Homeostasis, College of Life Sciences; TaiKang Center for Life and Medical Sciences; The Institute for Advanced Studies; Frontier Science Center for Immunology and Metabolism, Wuhan University, Wuhan, China.
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19
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Sullivan KE, Kumar S, Liu X, Zhang Y, de Koning E, Li Y, Yuan J, Fan F. Uncovering the roles of dihydropyrimidine dehydrogenase in fatty-acid induced steatosis using human cellular models. Sci Rep 2022; 12:14109. [PMID: 35982095 PMCID: PMC9388600 DOI: 10.1038/s41598-022-17860-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Accepted: 08/02/2022] [Indexed: 12/03/2022] Open
Abstract
Pyrimidine catabolism is implicated in hepatic steatosis. Dihydropyrimidine dehydrogenase (DPYD) is an enzyme responsible for uracil and thymine catabolism, and DPYD human genetic variability affects clinically observed toxicity following 5-Fluorouracil administration. In an in vitro model of fatty acid-induced steatosis, the pharmacologic inhibition of DPYD resulted in protection from lipid accumulation. Additionally, a gain-of-function mutation of DPYD, created through clustered regularly interspaced short palindromic repeats associated protein 9 (CRISPR-Cas9) engineering, led to an increased lipid burden, which was associated with altered mitochondrial functionality in a hepatocarcionma cell line. The studies presented herein describe a novel role for DPYD in hepatocyte metabolic regulation as a modulator of hepatic steatosis.
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Affiliation(s)
- Kelly E Sullivan
- Translational Systems Biology Group, Amgen Inc., Cambridge, MA, 02141, USA.,Vertex Pharmaceuticals, Boston, MA, 02210, USA
| | - Sheetal Kumar
- Translational Systems Biology Group, Amgen Inc., Cambridge, MA, 02141, USA.,Nimbus Therapeutics, Cambridge, MA, 02139, USA
| | - Xin Liu
- Translational Systems Biology Group, Amgen Inc., Cambridge, MA, 02141, USA.,Novartis Institutes for Biomedical Research, Cambridge, MA, 02139, USA
| | - Ye Zhang
- Translational Systems Biology Group, Amgen Inc., Cambridge, MA, 02141, USA.,Novartis Institutes for Biomedical Research, Cambridge, MA, 02139, USA
| | - Emily de Koning
- Translational Systems Biology Group, Amgen Inc., Cambridge, MA, 02141, USA.,Amgen Inc., Thousand Oaks, CA, 91320, USA
| | - Yanfei Li
- Amgen Inc., South San Francisco, CA, 90408, USA
| | - Jing Yuan
- Translational Systems Biology Group, Amgen Inc., Cambridge, MA, 02141, USA.,Pfizer Inc., Cambridge, MA, 02139, USA
| | - Fan Fan
- Translational Systems Biology Group, Amgen Inc., Cambridge, MA, 02141, USA. .,Janssen Pharmaceutical Companies of Johnson & Johnson, La Jolla, CA, 92037, USA.
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20
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Regulation of the Homeostatic Unfolded Protein Response in Diabetic Nephropathy. Pharmaceuticals (Basel) 2022; 15:ph15040401. [PMID: 35455399 PMCID: PMC9030951 DOI: 10.3390/ph15040401] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 03/09/2022] [Accepted: 03/23/2022] [Indexed: 02/06/2023] Open
Abstract
A growing body of scientific evidence indicates that protein homeostasis, also designated as proteostasis, is causatively linked to chronic diabetic nephropathy (DN). Experimental studies have demonstrated that the insulin signaling in podocytes maintain the homeostatic unfolded protein response (UPR). Insulin signaling via the insulin receptor non-canonically activates the spliced X-box binding protein-1 (sXBP1), a highly conserved endoplasmic reticulum (ER) transcription factor, which regulates the expression of genes that control proteostasis. Defective insulin signaling in mouse models of diabetes or the genetic disruption of the insulin signaling pathway in podocytes propagates hyperglycemia induced maladaptive UPR and DN. Insulin resistance in podocytes specifically promotes activating transcription factor 6 (ATF6) dependent pathogenic UPR. Akin to insulin, recent studies have identified that the cytoprotective effect of anticoagulant serine protease-activated protein C (aPC) in DN is mediated by sXBP1. In mouse models of DN, treatment with chemical chaperones that improve protein folding provides an additional benefit on top of currently used ACE inhibitors. Understanding the molecular mechanisms that transmute renal cell specific adaptive responses and that deteriorate renal function in diabetes will enable researchers to develop new therapeutic regimens for DN. Within this review, we focus on the current understanding of homeostatic mechanisms by which UPR is regulated in DN.
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21
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Lockridge A, Hanover JA. A nexus of lipid and O-Glcnac metabolism in physiology and disease. Front Endocrinol (Lausanne) 2022; 13:943576. [PMID: 36111295 PMCID: PMC9468787 DOI: 10.3389/fendo.2022.943576] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Accepted: 07/27/2022] [Indexed: 11/13/2022] Open
Abstract
Although traditionally considered a glucose metabolism-associated modification, the O-linked β-N-Acetylglucosamine (O-GlcNAc) regulatory system interacts extensively with lipids and is required to maintain lipid homeostasis. The enzymes of O-GlcNAc cycling have molecular properties consistent with those expected of broad-spectrum environmental sensors. By direct protein-protein interactions and catalytic modification, O-GlcNAc cycling enzymes may provide both acute and long-term adaptation to stress and other environmental stimuli such as nutrient availability. Depending on the cell type, hyperlipidemia potentiates or depresses O-GlcNAc levels, sometimes biphasically, through a diversity of unique mechanisms that target UDP-GlcNAc synthesis and the availability, activity and substrate selectivity of the glycosylation enzymes, O-GlcNAc Transferase (OGT) and O-GlcNAcase (OGA). At the same time, OGT activity in multiple tissues has been implicated in the homeostatic regulation of systemic lipid uptake, storage and release. Hyperlipidemic patterns of O-GlcNAcylation in these cells are consistent with both transient physiological adaptation and feedback uninhibited obesogenic and metabolic dysregulation. In this review, we summarize the numerous interconnections between lipid and O-GlcNAc metabolism. These links provide insights into how the O-GlcNAc regulatory system may contribute to lipid-associated diseases including obesity and metabolic syndrome.
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22
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Gouveia A, de Oliveira Beleza R, Steculorum SM. AgRP neuronal activity across feeding-related behaviours. Eur J Neurosci 2021; 54:7458-7475. [PMID: 34655481 DOI: 10.1111/ejn.15498] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 10/06/2021] [Accepted: 10/09/2021] [Indexed: 01/24/2023]
Abstract
AgRP neurons trigger one of the most potent orexigenic responses and are both necessary and sufficient for feeding. Recent technical advances for monitoring in vivo neuronal activity have revisited a previously well-established model of AgRP neurons' feeding regulatory effects. Our current understanding of AgRP neurons has increased in complexity and revealed a fine-tuned regulation of their activity dynamics across the whole sequence of feeding-related behaviours. This review focuses on recent studies that refined and re-evaluated our understanding of the regulatory principles and behavioural effects of AgRP circuits. We aim to cover major discoveries on the dynamic regulation of AgRP neuronal activity by exteroceptive and interoceptive food-related cues, their pleiotropic effects in feeding and whole-body homeostasis, and the associated AgRP circuits. The function and regulation of AgRP neuron will be sequentially discussed across the temporal series of behavioural and physiological changes occurring during the appetitive (food craving and foraging), the anticipatory (discovery of food-predicting cues), and the consummatory/post-ingestive phase of feeding (calorie ingestion).
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Affiliation(s)
- Ayden Gouveia
- Max Planck Institute for Metabolism Research, Max Planck Research Group Neurocircuit Wiring and Function, Cologne, Germany.,Cologne Excellence Cluster for Stress Responses in Ageing-Associated Diseases (CECAD), University of Cologne, Cologne, Germany
| | - Rui de Oliveira Beleza
- Max Planck Institute for Metabolism Research, Max Planck Research Group Neurocircuit Wiring and Function, Cologne, Germany.,Cologne Excellence Cluster for Stress Responses in Ageing-Associated Diseases (CECAD), University of Cologne, Cologne, Germany
| | - Sophie M Steculorum
- Max Planck Institute for Metabolism Research, Max Planck Research Group Neurocircuit Wiring and Function, Cologne, Germany.,Cologne Excellence Cluster for Stress Responses in Ageing-Associated Diseases (CECAD), University of Cologne, Cologne, Germany.,German Center for Diabetes Research (DZD), Neuherberg, Germany
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23
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Li Q, Li C, Elnwasany A, Sharma G, An YA, Zhang G, Elhelaly WM, Lin J, Gong Y, Chen G, Wang M, Zhao S, Dai C, Smart CD, Liu J, Luo X, Deng Y, Tan L, Lv SJ, Davidson SM, Locasale JW, Lorenzi PL, Malloy CR, Gillette TG, Vander Heiden MG, Scherer PE, Szweda LI, Fu G, Wang ZV. PKM1 Exerts Critical Roles in Cardiac Remodeling Under Pressure Overload in the Heart. Circulation 2021; 144:712-727. [PMID: 34102853 PMCID: PMC8405569 DOI: 10.1161/circulationaha.121.054885] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND Metabolic remodeling precedes most alterations during cardiac hypertrophic growth under hemodynamic stress. The elevation of glucose utilization has been recognized as a hallmark of metabolic remodeling. However, its role in cardiac hypertrophic growth and heart failure in response to pressure overload remains to be fully illustrated. Here, we aimed to dissect the role of cardiac PKM1 (pyruvate kinase muscle isozyme 1) in glucose metabolic regulation and cardiac response under pressure overload. METHODS Cardiac-specific deletion of PKM1 was achieved by crossing the floxed PKM1 mouse model with the cardiomyocyte-specific Cre transgenic mouse. PKM1 transgenic mice were generated under the control of tetracycline response elements, and cardiac-specific overexpression of PKM1 was induced by doxycycline administration in adult mice. Pressure overload was triggered by transverse aortic constriction. Primary neonatal rat ventricular myocytes were used to dissect molecular mechanisms. Moreover, metabolomics and nuclear magnetic resonance spectroscopy analyses were conducted to determine cardiac metabolic flux in response to pressure overload. RESULTS We found that PKM1 expression is reduced in failing human and mouse hearts. It is important to note that cardiomyocyte-specific deletion of PKM1 exacerbates cardiac dysfunction and fibrosis in response to pressure overload. Inducible overexpression of PKM1 in cardiomyocytes protects the heart against transverse aortic constriction-induced cardiomyopathy and heart failure. At the mechanistic level, PKM1 is required for the augmentation of glycolytic flux, mitochondrial respiration, and ATP production under pressure overload. Furthermore, deficiency of PKM1 causes a defect in cardiomyocyte growth and a decrease in pyruvate dehydrogenase complex activity at both in vitro and in vivo levels. CONCLUSIONS These findings suggest that PKM1 plays an essential role in maintaining a homeostatic response in the heart under hemodynamic stress.
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Affiliation(s)
- Qinfeng Li
- Department of Cardiology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
- Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Hangzhou, Zhejiang, China
- Division of Cardiology, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Chao Li
- Division of Cardiology, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Abdallah Elnwasany
- Division of Cardiology, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Gaurav Sharma
- Advanced Imaging Research Center, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Yu A. An
- Touchstone Diabetes Center, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Guangyu Zhang
- Division of Cardiology, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Waleed M. Elhelaly
- Division of Cardiology, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Jun Lin
- Department of Cardiology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
- Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Hangzhou, Zhejiang, China
| | - Yingchao Gong
- Department of Cardiology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
- Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Hangzhou, Zhejiang, China
| | - Guihao Chen
- Division of Cardiology, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Meihui Wang
- Department of Cardiology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
- Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Hangzhou, Zhejiang, China
| | - Shangang Zhao
- Touchstone Diabetes Center, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Chongshan Dai
- Division of Cardiology, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Charles D. Smart
- Division of Cardiology, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Juan Liu
- Department of Pharmacology & Cancer Biology, Duke University School of Medicine, Durham, North Carolina, USA
| | - Xiang Luo
- Division of Cardiology, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Yingfeng Deng
- Touchstone Diabetes Center, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Lin Tan
- Metabolomics Core Facility, Department of Bioinformatics & Computational Biology, University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Shuang-Jie Lv
- State Key Laboratory of Medical Molecular Biology, Department of Biochemistry and Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Shawn M. Davidson
- Koch Institute for Integrative Cancer Research and Department of Biology, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
| | - Jason W. Locasale
- Department of Pharmacology & Cancer Biology, Duke University School of Medicine, Durham, North Carolina, USA
| | - Philip L. Lorenzi
- Metabolomics Core Facility, Department of Bioinformatics & Computational Biology, University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Craig R. Malloy
- Advanced Imaging Research Center, University of Texas Southwestern Medical Center, Dallas, Texas, USA
- Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, Texas, USA
- Department of Radiology, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Thomas G. Gillette
- Division of Cardiology, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Matthew G. Vander Heiden
- Koch Institute for Integrative Cancer Research and Department of Biology, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
- Dana-Farber Cancer Institute, Boston, Massachusetts, USA
| | - Philipp E. Scherer
- Touchstone Diabetes Center, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Luke I. Szweda
- Division of Cardiology, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Guosheng Fu
- Department of Cardiology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
- Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Hangzhou, Zhejiang, China
| | - Zhao V. Wang
- Division of Cardiology, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, Texas, USA
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24
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Zhao P, Huang P, Xu T, Xiang X, Sun Y, Liu J, Yan C, Wang L, Gao J, Cui S, Wang X, Zhan L, Song H, Liu J, Song W, Liu Y. Fat body Ire1 regulates lipid homeostasis through the Xbp1s-FoxO axis in Drosophila. iScience 2021; 24:102819. [PMID: 34381963 PMCID: PMC8333185 DOI: 10.1016/j.isci.2021.102819] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 04/25/2021] [Accepted: 07/02/2021] [Indexed: 11/24/2022] Open
Abstract
The endoplasmic reticulum (ER)-resident transmembrane protein kinase/RNase Ire1 is a conserved sensor of the cellular unfolded protein response and has been implicated in lipid homeostasis, including lipid synthesis and transport, across species. Here we report a novel catabolic role of Ire1 in regulating lipid mobilization in Drosophila. We found that Ire1 is activated by nutrient deprivation, and, importantly, fat body-specific Ire1 deficiency leads to increased lipid mobilization and sensitizes flies to starvation, whereas fat body Ire1 overexpression results in the opposite phenotypes. Genetic interaction and biochemical analyses revealed that Ire1 regulates lipid mobilization by promoting Xbp1s-associated FoxO degradation and suppressing FoxO-dependent lipolytic programs. Our results demonstrate that Ire1 is a catabolic sensor and acts through the Xbp1s-FoxO axis to hamper the lipolytic response during chronic food deprivation. These findings offer new insights into the conserved Ire1 regulation of lipid homeostasis. Food deprivation systemically activates Ire1 and increases Xbp1 splicing Fat body Ire1-Xbp1s axis regulates lipid mobilization and survival during starvation Ire1-Xbp1s pathway enhances proteasomal degradation of FoxO Fat body Ire1-Xbp1s pathway hampers FoxO-associated lipid mobilization under starvation
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Affiliation(s)
- Peng Zhao
- Hubei Key Laboratory of Cell Homeostasis, College of Life Sciences; the Institute for Advanced Studies, Wuhan University, Wuhan 430072, China
| | - Ping Huang
- Key Laboratory of Nutrition and Metabolism, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Tongfu Xu
- Key Laboratory of Nutrition and Metabolism, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Xiaoxiang Xiang
- Frontier Science Center for Immunology and Metabolism, Medical Research Institute, Wuhan University, Wuhan 430071, China
| | - Ying Sun
- Key Laboratory of Nutrition and Metabolism, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Jingqi Liu
- Key Laboratory of Nutrition and Metabolism, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Cheng Yan
- Key Laboratory of Nutrition and Metabolism, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Lei Wang
- Key Laboratory of Molecular Virology and Immunology, Institute Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai 200031, China
| | - Jiamei Gao
- School of Life Science and Technology, Shanghai Tech University, Shanghai 200031, China
| | - Shang Cui
- Department of Cell Biology, Shandong University School of Medicine, Jinan, China, 250012
| | - Xiangdong Wang
- Department of Cell Biology, Shandong University School of Medicine, Jinan, China, 250012
| | - Lixing Zhan
- Key Laboratory of Nutrition and Metabolism, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Haiyun Song
- Key Laboratory of Nutrition and Metabolism, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Jingnan Liu
- School of Life Science and Technology, Shanghai Tech University, Shanghai 200031, China
| | - Wei Song
- Frontier Science Center for Immunology and Metabolism, Medical Research Institute, Wuhan University, Wuhan 430071, China
| | - Yong Liu
- Hubei Key Laboratory of Cell Homeostasis, College of Life Sciences; the Institute for Advanced Studies, Wuhan University, Wuhan 430072, China.,Frontier Science Center for Immunology and Metabolism, Medical Research Institute, Wuhan University, Wuhan 430071, China
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25
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Liu Y, Xie C, Zhai Z, Deng ZY, De Jonge HR, Wu X, Ruan Z. Uridine attenuates obesity, ameliorates hepatic lipid accumulation and modifies the gut microbiota composition in mice fed with a high-fat diet. Food Funct 2021; 12:1829-1840. [PMID: 33527946 DOI: 10.1039/d0fo02533j] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Uridine (UR) is a pyrimidine nucleoside that plays an important role in regulating glucose and lipid metabolism. The aim of this study was to investigate the effect of UR on obesity, fat accumulation in liver, and gut microbiota composition in high-fat diet (HFD)-fed mice. ICR mice were, respectively, divided into 3 groups for 8 weeks, that is, control (CON, n = 12), high fat diet (HFD, n = 16), and HFD + UR groups (0.4 mg mL-1 in drinking water, n = 16). UR supplementation significantly reduced the body weight and suppressed the accumulation of subcutaneous, epididymal, and mesenteric WAT in HFD-fed mice (P < 0.05). Meanwhile, UR also decreased the lipid droplet accumulation in the liver and liver organoids (P < 0.05). In addition, UR supplementation increased bacterial diversity and Bacteroidetes abundance, and decreased the Firmicutes-to-Bacteroidetes ratio in HFD-fed mice significantly (P < 0.05). UR promoted the growth of butyrate-producing bacteria of Odoribacter, unidentified-Ruminococcaceae, Intestinimonas, Ruminiclostridium, and unidentified-Lachnospiraceae. A close correlation between several specific bacterial phyla or genera and the levels of WAT weight, hepatic TC, or hepatic TG genera was revealed through Spearman's correlation analysis. These results demonstrated that UR supplementation could be beneficial by attenuating HFD-induced obesity and nonalcoholic fatty liver disease.
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Affiliation(s)
- Yilin Liu
- School of Food Science and Technology, State Laboratory of Food Science and Technology, Nanchang University, Nanchang, Jiangxi 330047, China. and Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, the Chinese Academy of Sciences, Changsha 410125, China.
| | - Chunyan Xie
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China and Department of Gastroenterology and Hepatology, Erasmus MC University Medical Center, Rotterdam, Netherlands
| | - Zhenya Zhai
- Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, the Chinese Academy of Sciences, Changsha 410125, China.
| | - Ze-Yuan Deng
- School of Food Science and Technology, State Laboratory of Food Science and Technology, Nanchang University, Nanchang, Jiangxi 330047, China.
| | - Hugo R De Jonge
- Department of Gastroenterology and Hepatology, Erasmus MC University Medical Center, Rotterdam, Netherlands
| | - Xin Wu
- School of Food Science and Technology, State Laboratory of Food Science and Technology, Nanchang University, Nanchang, Jiangxi 330047, China. and Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, the Chinese Academy of Sciences, Changsha 410125, China. and Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China
| | - Zheng Ruan
- School of Food Science and Technology, State Laboratory of Food Science and Technology, Nanchang University, Nanchang, Jiangxi 330047, China.
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26
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Lemmer IL, Willemsen N, Hilal N, Bartelt A. A guide to understanding endoplasmic reticulum stress in metabolic disorders. Mol Metab 2021; 47:101169. [PMID: 33484951 PMCID: PMC7887651 DOI: 10.1016/j.molmet.2021.101169] [Citation(s) in RCA: 136] [Impact Index Per Article: 45.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 01/08/2021] [Accepted: 01/18/2021] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND The global rise of metabolic disorders, such as obesity, type 2 diabetes, and cardiovascular disease, demands a thorough molecular understanding of the cellular mechanisms that govern health or disease. The endoplasmic reticulum (ER) is a key organelle for cellular function and metabolic adaptation and, therefore disturbed ER function, known as "ER stress," is a key feature of metabolic disorders. SCOPE OF REVIEW As ER stress remains a poorly defined phenomenon, this review provides a general guide to understanding the nature, etiology, and consequences of ER stress in metabolic disorders. We define ER stress by its type of stressor, which is driven by proteotoxicity, lipotoxicity, and/or glucotoxicity. We discuss the implications of ER stress in metabolic disorders by reviewing evidence implicating ER phenotypes and organelle communication, protein quality control, calcium homeostasis, lipid and carbohydrate metabolism, and inflammation as key mechanisms in the development of ER stress and metabolic dysfunction. MAJOR CONCLUSIONS In mammalian biology, ER is a phenotypically and functionally diverse platform for nutrient sensing, which is critical for cell type-specific metabolic control by hepatocytes, adipocytes, muscle cells, and neurons. In these cells, ER stress is a distinct, transient state of functional imbalance, which is usually resolved by the activation of adaptive programs such as the unfolded protein response (UPR), ER-associated protein degradation (ERAD), or autophagy. However, challenges to proteostasis also impact lipid and glucose metabolism and vice versa. In the ER, sensing and adaptive measures are integrated and failure of the ER to adapt leads to aberrant metabolism, organelle dysfunction, insulin resistance, and inflammation. In conclusion, the ER is intricately linked to a wide spectrum of cellular functions and is a critical component in maintaining and restoring metabolic health.
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Affiliation(s)
- Imke L Lemmer
- Institute for Cardiovascular Prevention (IPEK), Pettenkoferstr. 9, Ludwig-Maximilians-University, 80336 Munich, Germany; Institute for Diabetes and Cancer (IDC), Helmholtz Center Munich, Ingolstädter Landstr. 1, 85764 Neuherberg, Germany
| | - Nienke Willemsen
- Institute for Cardiovascular Prevention (IPEK), Pettenkoferstr. 9, Ludwig-Maximilians-University, 80336 Munich, Germany
| | - Nazia Hilal
- Institute for Cardiovascular Prevention (IPEK), Pettenkoferstr. 9, Ludwig-Maximilians-University, 80336 Munich, Germany
| | - Alexander Bartelt
- Institute for Cardiovascular Prevention (IPEK), Pettenkoferstr. 9, Ludwig-Maximilians-University, 80336 Munich, Germany; Institute for Diabetes and Cancer (IDC), Helmholtz Center Munich, Ingolstädter Landstr. 1, 85764 Neuherberg, Germany; German Center for Cardiovascular Research (DZHK), Partner Site Munich Heart Alliance, Munich, Technische Universität München, Biedersteiner Str. 29, 80802 München, Germany; Department of Molecular Metabolism, 665 Huntington Avenue, Harvard T.H. Chan School of Public Health, 02115 Boston, MA, USA.
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27
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Medinas DB, Hazari Y, Hetz C. Disruption of Endoplasmic Reticulum Proteostasis in Age-Related Nervous System Disorders. PROGRESS IN MOLECULAR AND SUBCELLULAR BIOLOGY 2021; 59:239-278. [PMID: 34050870 DOI: 10.1007/978-3-030-67696-4_12] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Endoplasmic reticulum (ER) stress is a prominent cellular alteration of diseases impacting the nervous system that are associated to the accumulation of misfolded and aggregated protein species during aging. The unfolded protein response (UPR) is the main pathway mediating adaptation to ER stress, but it can also trigger deleterious cascades of inflammation and cell death leading to cell dysfunction and neurodegeneration. Genetic and pharmacological studies in experimental models shed light into molecular pathways possibly contributing to ER stress and the UPR activation in human neuropathies. Most of experimental models are, however, based on the overexpression of mutant proteins causing familial forms of these diseases or the administration of neurotoxins that induce pathology in young animals. Whether the mechanisms uncovered in these models are relevant for the etiology of the vast majority of age-related sporadic forms of neurodegenerative diseases is an open question. Here, we provide a systematic analysis of the current evidence linking ER stress to human pathology and the main mechanisms elucidated in experimental models. Furthermore, we highlight the recent association of metabolic syndrome to increased risk to undergo neurodegeneration, where ER stress arises as a common denominator in the pathogenic crosstalk between peripheral organs and the nervous system.
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Affiliation(s)
- Danilo B Medinas
- Biomedical Neuroscience Institute, Faculty of Medicine, University of Chile, Santiago, Chile. .,Program of Cellular and Molecular Biology, Center for Molecular Studies of the Cell, Institute of Biomedical Sciences, University of Chile, Santiago, Chile. .,Center for Geroscience, Brain Health and Metabolism, Santiago, Chile.
| | - Younis Hazari
- Biomedical Neuroscience Institute, Faculty of Medicine, University of Chile, Santiago, Chile.,Program of Cellular and Molecular Biology, Center for Molecular Studies of the Cell, Institute of Biomedical Sciences, University of Chile, Santiago, Chile.,Center for Geroscience, Brain Health and Metabolism, Santiago, Chile
| | - Claudio Hetz
- Biomedical Neuroscience Institute, Faculty of Medicine, University of Chile, Santiago, Chile. .,Program of Cellular and Molecular Biology, Center for Molecular Studies of the Cell, Institute of Biomedical Sciences, University of Chile, Santiago, Chile. .,Center for Geroscience, Brain Health and Metabolism, Santiago, Chile. .,Buck Institute for Research on Aging, Novato, CA, USA.
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28
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Veliova M, Ferreira CM, Benador IY, Jones AE, Mahdaviani K, Brownstein AJ, Desousa BR, Acín-Pérez R, Petcherski A, Assali EA, Stiles L, Divakaruni AS, Prentki M, Corkey BE, Liesa M, Oliveira MF, Shirihai OS. Blocking mitochondrial pyruvate import in brown adipocytes induces energy wasting via lipid cycling. EMBO Rep 2020; 21:e49634. [PMID: 33275313 PMCID: PMC7726774 DOI: 10.15252/embr.201949634] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Revised: 09/15/2020] [Accepted: 10/07/2020] [Indexed: 12/20/2022] Open
Abstract
Combined fatty acid esterification and lipolysis, termed lipid cycling, is an ATP‐consuming process that contributes to energy expenditure. Therefore, interventions that stimulate energy expenditure through lipid cycling are of great interest. Here we find that pharmacological and genetic inhibition of the mitochondrial pyruvate carrier (MPC) in brown adipocytes activates lipid cycling and energy expenditure, even in the absence of adrenergic stimulation. We show that the resulting increase in ATP demand elevates mitochondrial respiration coupled to ATP synthesis and fueled by lipid oxidation. We identify that glutamine consumption and the Malate‐Aspartate Shuttle are required for the increase in Energy Expenditure induced by MPC inhibition in Brown Adipocytes (MAShEEBA). We thus demonstrate that energy expenditure through enhanced lipid cycling can be activated in brown adipocytes by decreasing mitochondrial pyruvate availability. We present a new mechanism to increase energy expenditure and fat oxidation in brown adipocytes, which does not require adrenergic stimulation of mitochondrial uncoupling.
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Affiliation(s)
- Michaela Veliova
- Department of Molecular and Medical Pharmacology, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA.,Division of Endocrinology, Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - Caroline M Ferreira
- Division of Endocrinology, Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA.,Instituto de Bioquímica Médica Leopoldo de Meis, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Ilan Y Benador
- Division of Endocrinology, Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA.,Nutrition and Metabolism, Graduate Medical Sciences, Boston University School of Medicine, Boston, MA, USA
| | - Anthony E Jones
- Department of Molecular and Medical Pharmacology, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - Kiana Mahdaviani
- Nutrition and Metabolism, Graduate Medical Sciences, Boston University School of Medicine, Boston, MA, USA
| | - Alexandra J Brownstein
- Division of Endocrinology, Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA.,Molecular Cellular Integrative Physiology, University of California, Los Angeles, CA, USA
| | - Brandon R Desousa
- Department of Molecular and Medical Pharmacology, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - Rebeca Acín-Pérez
- Division of Endocrinology, Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - Anton Petcherski
- Division of Endocrinology, Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - Essam A Assali
- Division of Endocrinology, Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA.,Department of Clinical Biochemistry, School of Medicine, Ben Gurion University of The Negev, Beer-Sheva, Israel
| | - Linsey Stiles
- Division of Endocrinology, Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - Ajit S Divakaruni
- Department of Molecular and Medical Pharmacology, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - Marc Prentki
- Department of Nutrition, , Université de Montréal, Montreal Diabetes Research Center and CRCHUM, Montréal, QC, Canada
| | - Barbara E Corkey
- Nutrition and Metabolism, Graduate Medical Sciences, Boston University School of Medicine, Boston, MA, USA
| | - Marc Liesa
- Department of Molecular and Medical Pharmacology, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA.,Division of Endocrinology, Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - Marcus F Oliveira
- Instituto de Bioquímica Médica Leopoldo de Meis, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Orian S Shirihai
- Department of Molecular and Medical Pharmacology, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA.,Division of Endocrinology, Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA.,Nutrition and Metabolism, Graduate Medical Sciences, Boston University School of Medicine, Boston, MA, USA
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The impact of endotrophin on the progression of chronic liver disease. Exp Mol Med 2020; 52:1766-1776. [PMID: 33110211 PMCID: PMC8080612 DOI: 10.1038/s12276-020-00520-8] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 08/26/2020] [Accepted: 09/07/2020] [Indexed: 01/28/2023] Open
Abstract
Non-alcoholic fatty liver disease (NAFLD) is the most common liver disease and can lead to multiple complications, including non-alcoholic steatohepatitis (NASH), cirrhosis, and hepatocellular carcinoma. The fibrotic liver is characterized by the pathological accumulation of extracellular matrix (ECM) proteins. Type VI collagen alpha3 (Col6a3) is a biomarker of hepatic fibrosis, and its cleaved form, endotrophin (ETP), plays a critical role in adipose tissue dysfunction, insulin resistance, and breast cancer development. Here, we studied the effects of the Col6a3-derived peptide ETP on the progression of chronic liver diseases, such as NASH and liver cancer. We used a doxycycline (Dox)-inducible liver-specific ETP-overexpressing mouse model on a NAFLD-prone (liver-specific SREBP1a transgenic) background. For this, we evaluated the consequences of local ETP expression in the liver and its effect on hepatic inflammation, fibrosis, and insulin resistance. Accumulation of ETP in the liver induced hepatic inflammation and the development of fibrosis with associated insulin resistance. Surprisingly, ETP overexpression also led to the emergence of liver cancer within 10 months in the SREBP1a transgenic background. Our data revealed that ETP can act as a “second hit” during the progression of NAFLD and can play an important role in the development of NASH and hepatocellular carcinoma (HCC). These observations firmly link elevated levels of ETP to chronic liver disease. Localized buildup in the liver of a collagen-derived cleavage fragment plays a critical role in accelerating the development of tissue scarring and liver cancer in mice. Using a transgenic mouse model of fatty liver disease, a team led by Philipp Scherer from the University of Texas Southwestern Medical Center, Dallas, USA, and Jiyoung Park of Ulsan National Institute of Science and Technology, South Korea, showed that liver-specific accumulation of a collagen fragment known as endotrophin leads to activation of inflammatory and fibrotic pathways. The mice subsequently develop metabolic dysfunction, insulin resistance and, with time, cancerous nodules in the liver. The findings suggest that endotrophin accumulation, when it occurs in liver tissue that already contains large depositions of fat, can overwhelm normal liver physiology and accelerate organ damage.
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Chronic activation of hexosamine biosynthesis in the heart triggers pathological cardiac remodeling. Nat Commun 2020; 11:1771. [PMID: 32286306 PMCID: PMC7156663 DOI: 10.1038/s41467-020-15640-y] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Accepted: 03/21/2020] [Indexed: 12/21/2022] Open
Abstract
The hexosamine biosynthetic pathway (HBP) plays critical roles in nutrient sensing, stress response, and cell growth. However, its contribution to cardiac hypertrophic growth and heart failure remains incompletely understood. Here, we show that the HBP is induced in cardiomyocytes during hypertrophic growth. Overexpression of Gfat1 (glutamine:fructose-6-phosphate amidotransferase 1), the rate-limiting enzyme of HBP, promotes cardiomyocyte growth. On the other hand, Gfat1 inhibition significantly blunts phenylephrine-induced hypertrophic growth in cultured cardiomyocytes. Moreover, cardiac-specific overexpression of Gfat1 exacerbates pressure overload-induced cardiac hypertrophy, fibrosis, and cardiac dysfunction. Conversely, deletion of Gfat1 in cardiomyocytes attenuates pathological cardiac remodeling in response to pressure overload. Mechanistically, persistent upregulation of the HBP triggers decompensated hypertrophy through activation of mTOR while Gfat1 deficiency shows cardioprotection and a concomitant decrease in mTOR activity. Taken together, our results reveal that chronic upregulation of the HBP under hemodynamic stress induces pathological cardiac hypertrophy and heart failure through persistent activation of mTOR. Metabolic remodeling plays an important role in pathological cardiac hypertrophy. Here, the authors show that hexosamine biosynthetic pathway is elevated in the heart by pressure overload, which contributes to heart failure by persistent activation of mTOR.
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31
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Adipokines and Adipose Tissue-Related Metabolites, Nuts and Cardiovascular Disease. Metabolites 2020; 10:metabo10010032. [PMID: 31940832 PMCID: PMC7022531 DOI: 10.3390/metabo10010032] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2019] [Revised: 01/06/2020] [Accepted: 01/10/2020] [Indexed: 02/07/2023] Open
Abstract
Adipose tissue is a complex structure responsible for fat storage and releasing polypeptides (adipokines) and metabolites, with systemic actions including body weight balance, appetite regulation, glucose homeostasis, and blood pressure control. Signals sent from different tissues are generated and integrated in adipose tissue; thus, there is a close connection between this endocrine organ and different organs and systems such as the gut and the cardiovascular system. It is known that functional foods, especially different nuts, may be related to a net of molecular mechanisms contributing to cardiometabolic health. Despite being energy-dense foods, nut consumption has been associated with no weight gain, weight loss, and lower risk of becoming overweight or obese. Several studies have reported beneficial effects after nut consumption on glucose control, appetite suppression, metabolites related to adipose tissue and gut microbiota, and on adipokines due to their fatty acid profile, vegetable proteins, l-arginine, dietary fibers, vitamins, minerals, and phytosterols. The aim of this review is to briefly describe possible mechanisms implicated in weight homeostasis related to different nuts, as well as studies that have evaluated the effects of nut consumption on adipokines and metabolites related to adipose tissue and gut microbiota in animal models, healthy individuals, and primary and secondary cardiovascular prevention.
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32
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Bhattacharya A, Qi L. ER-associated degradation in health and disease - from substrate to organism. J Cell Sci 2019; 132:132/23/jcs232850. [PMID: 31792042 DOI: 10.1242/jcs.232850] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
The recent literature has revolutionized our view on the vital importance of endoplasmic reticulum (ER)-associated degradation (ERAD) in health and disease. Suppressor/enhancer of Lin-12-like (Sel1L)-HMG-coA reductase degradation protein 1 (Hrd1)-mediated ERAD has emerged as a crucial determinant of normal physiology and as a sentinel against disease pathogenesis in the body, in a largely substrate- and cell type-specific manner. In this Review, we highlight three features of ERAD, constitutive versus inducible ERAD, quality versus quantity control of ERAD and ERAD-mediated regulation of nuclear gene transcription, through which ERAD exerts a profound impact on a number of physiological processes.
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Affiliation(s)
- Asmita Bhattacharya
- Department of Molecular & Integrative Physiology, University of Michigan Medical School, Ann Arbor, MI 48105, USA.,Graduate Program of Genetics, Genomics and Development, Cornell University, Ithaca, NY 14853, USA
| | - Ling Qi
- Department of Molecular & Integrative Physiology, University of Michigan Medical School, Ann Arbor, MI 48105, USA .,Division of Metabolism, Endocrinology & Diabetes, Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, MI 48105, USA
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33
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Huang S, Xing Y, Liu Y. Emerging roles for the ER stress sensor IRE1α in metabolic regulation and disease. J Biol Chem 2019; 294:18726-18741. [PMID: 31666338 DOI: 10.1074/jbc.rev119.007036] [Citation(s) in RCA: 83] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Inositol-requiring enzyme 1 (IRE1) is an endoplasmic reticulum (ER)-resident transmembrane protein that senses ER stress and is evolutionarily conserved from yeast to humans. IRE1 possesses both Ser/Thr protein kinase and endoribonuclease (RNase) activities within its cytoplasmic domain and is activated through autophosphorylation and dimerization/oligomerization. It mediates a critical arm of the unfolded protein response to manage ER stress provoked by lumenal overload of unfolded/misfolded proteins. Emerging lines of evidence have revealed that in mammals, IRE1α functions as a multifunctional signal transducer that responds to metabolic cues and nutrient stress conditions, exerting profound and broad effects on metabolic homeostasis. In this review, we cover recent advances in our understanding of how IRE1α integrates a variety of metabolic and stress signals and highlight its tissue-specific or context-dependent metabolic activities. We also discuss how dysregulation of this metabolic stress sensor during handling of excessive nutrients in cells contributes to the progression of obesity and metabolic disorders.
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Affiliation(s)
- Shijia Huang
- Hubei Key Laboratory of Cell Homeostasis, College of Life Sciences, Institute for Advanced Studies, Wuhan University, Wuhan 430072, China
| | - Yuying Xing
- Hubei Key Laboratory of Cell Homeostasis, College of Life Sciences, Institute for Advanced Studies, Wuhan University, Wuhan 430072, China
| | - Yong Liu
- Hubei Key Laboratory of Cell Homeostasis, College of Life Sciences, Institute for Advanced Studies, Wuhan University, Wuhan 430072, China.
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34
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Funcke JB, Scherer PE. Beyond adiponectin and leptin: adipose tissue-derived mediators of inter-organ communication. J Lipid Res 2019; 60:1648-1684. [PMID: 31209153 PMCID: PMC6795086 DOI: 10.1194/jlr.r094060] [Citation(s) in RCA: 175] [Impact Index Per Article: 35.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Revised: 06/17/2019] [Indexed: 01/10/2023] Open
Abstract
The breakthrough discoveries of leptin and adiponectin more than two decades ago led to a widespread recognition of adipose tissue as an endocrine organ. Many more adipose tissue-secreted signaling mediators (adipokines) have been identified since then, and much has been learned about how adipose tissue communicates with other organs of the body to maintain systemic homeostasis. Beyond proteins, additional factors, such as lipids, metabolites, noncoding RNAs, and extracellular vesicles (EVs), released by adipose tissue participate in this process. Here, we review the diverse signaling mediators and mechanisms adipose tissue utilizes to relay information to other organs. We discuss recently identified adipokines (proteins, lipids, and metabolites) and briefly outline the contributions of noncoding RNAs and EVs to the ever-increasing complexities of adipose tissue inter-organ communication. We conclude by reflecting on central aspects of adipokine biology, namely, the contribution of distinct adipose tissue depots and cell types to adipokine secretion, the phenomenon of adipokine resistance, and the capacity of adipose tissue to act both as a source and sink of signaling mediators.
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Affiliation(s)
- Jan-Bernd Funcke
- Touchstone Diabetes Center, University of Texas Southwestern Medical Center, Dallas, TX
| | - Philipp E Scherer
- Touchstone Diabetes Center, University of Texas Southwestern Medical Center, Dallas, TX
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35
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Liu Y, Zhang Y, Yin J, Ruan Z, Wu X, Yin Y. Uridine dynamic administration affects circadian variations in lipid metabolisms in the liver of high-fat-diet-fed mice. Chronobiol Int 2019; 36:1258-1267. [DOI: 10.1080/07420528.2019.1637347] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Yilin Liu
- State Laboratory of Food Science and Technology, School of Food Science and Technology, Nanchang University, Nanchang, Jiangxi, China
- Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, the Chinese Academy of Sciences, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production
| | - Yumei Zhang
- Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, the Chinese Academy of Sciences, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production
| | - Jie Yin
- Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, the Chinese Academy of Sciences, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production
| | - Zheng Ruan
- State Laboratory of Food Science and Technology, School of Food Science and Technology, Nanchang University, Nanchang, Jiangxi, China
| | - Xin Wu
- State Laboratory of Food Science and Technology, School of Food Science and Technology, Nanchang University, Nanchang, Jiangxi, China
- Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, the Chinese Academy of Sciences, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production
- Institute of Biological Resources, Jiangxi Academy of Sciences, Nanchang, China
| | - Yulong Yin
- State Laboratory of Food Science and Technology, School of Food Science and Technology, Nanchang University, Nanchang, Jiangxi, China
- Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, the Chinese Academy of Sciences, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production
- Institute of Biological Resources, Jiangxi Academy of Sciences, Nanchang, China
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36
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Wang X, Deng Y, Zhang G, Li C, Ding G, May HI, Tran DH, Luo X, Jiang DS, Li DL, Wei X, Xu L, Ferdous A, Gillette TG, Scherer PE, Jiang X, Wang ZV. Spliced X-box Binding Protein 1 Stimulates Adaptive Growth Through Activation of mTOR. Circulation 2019; 140:566-579. [PMID: 31177839 DOI: 10.1161/circulationaha.118.038924] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND The unfolded protein response plays versatile roles in physiology and pathophysiology. Its connection to cell growth, however, remains elusive. Here, we sought to define the role of unfolded protein response in the regulation of cardiomyocyte growth in the heart. METHODS We used both gain- and loss-of-function approaches to genetically manipulate XBP1s (spliced X-box binding protein 1), the most conserved signaling branch of the unfolded protein response, in the heart. In addition, primary cardiomyocyte culture was used to address the role of XBP1s in cell growth in a cell-autonomous manner. RESULTS We found that XBP1s expression is reduced in both human and rodent cardiac tissues under heart failure. Furthermore, deficiency of XBP1s leads to decompensation and exacerbation of heart failure progression under pressure overload. On the other hand, cardiac-restricted overexpression of XBP1s prevents the development of cardiac dysfunction. Mechanistically, we found that XBP1s stimulates adaptive cardiac growth through activation of the mechanistic target of rapamycin signaling, which is mediated via FKBP11 (FK506-binding protein 11), a novel transcriptional target of XBP1s. Moreover, silencing of FKBP11 significantly diminishes XBP1s-induced mechanistic target of rapamycin activation and adaptive cell growth. CONCLUSIONS Our results reveal a critical role of the XBP1s-FKBP11-mechanistic target of rapamycin axis in coupling of the unfolded protein response and cardiac cell growth regulation.
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Affiliation(s)
- Xiaoding Wang
- Division of Cardiology (X. Wang, G.Z., C.L., G.D., H.I.M., D.H.T., X.L., D.L.L., A.F., T.G.G., Z.V.W.), Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas
| | - Yingfeng Deng
- Touchstone Diabetes Center (Y.D., P.E.S.), Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas
| | - Guangyu Zhang
- Division of Cardiology (X. Wang, G.Z., C.L., G.D., H.I.M., D.H.T., X.L., D.L.L., A.F., T.G.G., Z.V.W.), Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas
| | - Chao Li
- Division of Cardiology (X. Wang, G.Z., C.L., G.D., H.I.M., D.H.T., X.L., D.L.L., A.F., T.G.G., Z.V.W.), Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas
| | - Guanqiao Ding
- Division of Cardiology (X. Wang, G.Z., C.L., G.D., H.I.M., D.H.T., X.L., D.L.L., A.F., T.G.G., Z.V.W.), Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas
| | - Herman I May
- Division of Cardiology (X. Wang, G.Z., C.L., G.D., H.I.M., D.H.T., X.L., D.L.L., A.F., T.G.G., Z.V.W.), Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas
| | - Diem H Tran
- Division of Cardiology (X. Wang, G.Z., C.L., G.D., H.I.M., D.H.T., X.L., D.L.L., A.F., T.G.G., Z.V.W.), Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas
| | - Xiang Luo
- Division of Cardiology (X. Wang, G.Z., C.L., G.D., H.I.M., D.H.T., X.L., D.L.L., A.F., T.G.G., Z.V.W.), Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas
| | - Ding-Sheng Jiang
- Division of Cardiothoracic and Vascular Surgery, Key Laboratory of Organ Transplantation of Ministry of Education and Key Laboratory of Organ Transplantation of Ministry of Health, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China (D.-S.J., X. Wei)
| | - Dan L Li
- Division of Cardiology (X. Wang, G.Z., C.L., G.D., H.I.M., D.H.T., X.L., D.L.L., A.F., T.G.G., Z.V.W.), Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas
| | - Xiang Wei
- Division of Cardiothoracic and Vascular Surgery, Key Laboratory of Organ Transplantation of Ministry of Education and Key Laboratory of Organ Transplantation of Ministry of Health, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China (D.-S.J., X. Wei)
| | - Lin Xu
- Department of Cardiology, Renmin Hospital of Wuhan University, Hubei, China (L.X., X.J.)
| | - Anwarul Ferdous
- Division of Cardiology (X. Wang, G.Z., C.L., G.D., H.I.M., D.H.T., X.L., D.L.L., A.F., T.G.G., Z.V.W.), Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas
| | - Thomas G Gillette
- Division of Cardiology (X. Wang, G.Z., C.L., G.D., H.I.M., D.H.T., X.L., D.L.L., A.F., T.G.G., Z.V.W.), Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas
| | - Philipp E Scherer
- Touchstone Diabetes Center (Y.D., P.E.S.), Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas
| | - Xuejun Jiang
- Department of Cardiology, Renmin Hospital of Wuhan University, Hubei, China (L.X., X.J.)
| | - Zhao V Wang
- Division of Cardiology (X. Wang, G.Z., C.L., G.D., H.I.M., D.H.T., X.L., D.L.L., A.F., T.G.G., Z.V.W.), Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas
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Rajan S, Panzade G, Srivastava A, Shankar K, Pandey R, Kumar D, Gupta S, Gupta A, Varshney S, Beg M, Mishra RK, Shankar R, Gaikwad A. miR-876-3p regulates glucose homeostasis and insulin sensitivity by targeting adiponectin. J Endocrinol 2018; 239:1–17. [PMID: 30307150 DOI: 10.1530/joe-17-0387] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
miRNA has been known to regulate diverse cellular and molecular functions. In the earlier study, we have reported that adipocytes differentiated from human mesenchymal stem cells (hMSC) on 72-h chronic insulin (CI) treatment exhibit insulin resistance (IR). Present study has further explored above model to investigate the role of early expressed miRNAs within human adipocytes to modulate differential adipokine expression as observed during IR. Our results highlight that miR-876-3p regulate glucose homeostasis and its dysregulation leads to IR. We found that miR-876-3p level is a critical determinant of adiponectin expression by virtue of its target within adiponectin 3′UTR. Regulatory effect of miR-876-3p impacts crosstalk between adiponectin and insulin signaling. Rosiglitazone treatment in CI-induced IR adipocytes drastically reduced miR-876-3p expression and increased adiponectin level. In line with this, lentiviral-mediated inhibition of miR-876-3p expression ameliorated CI and high-fat diet (HFD)-induced IR in adipocytes differentiated from hMSC and C57BL/6 mice, respectively. Our findings thus suggest that modulating miR-876-3p expression could provide novel opportunities for therapeutic intervention of obesity-associated metabolic syndrome.
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Affiliation(s)
- Sujith Rajan
- Division of Pharmacology, CSIR-Central Drug Research Institute, Lucknow, India
- Academy of Scientific and Innovative Research, CSIR-CDRI, Lucknow, India
| | - Ganesh Panzade
- Studio of Computational Biology and Bioinformatics, Biotechnology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur, India
- Academy of Scientific and Innovative Research, CSIR-IHBT, Palampur, India
| | - Ankita Srivastava
- Division of Pharmacology, CSIR-Central Drug Research Institute, Lucknow, India
- Academy of Scientific and Innovative Research, CSIR-CDRI, Lucknow, India
| | - Kripa Shankar
- Division of Pharmacology, CSIR-Central Drug Research Institute, Lucknow, India
| | - Rajesh Pandey
- CSIR Ayurgenomics Unit-TRISUTRA, CSIR-Institute of Genomics and Integrative Biology, New Delhi, India
| | - Durgesh Kumar
- Division of Pharmacology, CSIR-Central Drug Research Institute, Lucknow, India
- Academy of Scientific and Innovative Research, CSIR-CDRI, Lucknow, India
| | - Sanchita Gupta
- Division of Pharmacology, CSIR-Central Drug Research Institute, Lucknow, India
- Academy of Scientific and Innovative Research, CSIR-CDRI, Lucknow, India
| | - Abhishek Gupta
- Division of Pharmacology, CSIR-Central Drug Research Institute, Lucknow, India
| | - Salil Varshney
- Division of Pharmacology, CSIR-Central Drug Research Institute, Lucknow, India
- Academy of Scientific and Innovative Research, CSIR-CDRI, Lucknow, India
| | - Muheeb Beg
- Division of Pharmacology, CSIR-Central Drug Research Institute, Lucknow, India
| | | | - Ravi Shankar
- Studio of Computational Biology and Bioinformatics, Biotechnology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur, India
- Academy of Scientific and Innovative Research, CSIR-IHBT, Palampur, India
| | - Anil Gaikwad
- Division of Pharmacology, CSIR-Central Drug Research Institute, Lucknow, India
- Academy of Scientific and Innovative Research, CSIR-CDRI, Lucknow, India
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