1
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Luca T, Pezzino S, Puleo S, Castorina S. Lesson on obesity and anatomy of adipose tissue: new models of study in the era of clinical and translational research. J Transl Med 2024; 22:764. [PMID: 39143643 PMCID: PMC11323604 DOI: 10.1186/s12967-024-05547-3] [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: 03/10/2024] [Accepted: 07/28/2024] [Indexed: 08/16/2024] Open
Abstract
Obesity is a serious global illness that is frequently associated with metabolic syndrome. Adipocytes are the typical cells of adipose organ, which is composed of at least two different tissues, white and brown adipose tissue. They functionally cooperate, interconverting each other under physiological conditions, but differ in their anatomy, physiology, and endocrine functions. Different cellular models have been proposed to study adipose tissue in vitro. They are also useful for elucidating the mechanisms that are responsible for a pathological condition, such as obesity, and for testing therapeutic strategies. Each cell model has its own characteristics, culture conditions, advantages and disadvantages. The choice of one model rather than another depends on the specific study the researcher is conducting. In recent decades, three-dimensional cultures, such as adipose spheroids, have become very attractive because they more closely resemble the phenotype of freshly isolated cells. The use of such models has developed in parallel with the evolution of translational research, an interdisciplinary branch of the biomedical field, which aims to learn a scientific translational approach to improve human health and longevity. The focus of the present review is on the growing body of data linking the use of new cell models and the spread of translational research. Also, we discuss the possibility, for the future, to employ new three-dimensional adipose tissue cell models to promote the transition from benchside to bedsite and vice versa, allowing translational research to become routine, with the final goal of obtaining clinical benefits in the prevention and treatment of obesity and related disorders.
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Affiliation(s)
- Tonia Luca
- Department of Medical, Surgical Sciences and Advanced Technologies "G.F. Ingrassia", University of Catania, Via Santa Sofia, 87, Catania, 95123, Italy.
| | | | - Stefano Puleo
- Mediterranean Foundation "GB Morgagni", Catania, Italy
| | - Sergio Castorina
- Department of Medical, Surgical Sciences and Advanced Technologies "G.F. Ingrassia", University of Catania, Via Santa Sofia, 87, Catania, 95123, Italy
- Mediterranean Foundation "GB Morgagni", Catania, Italy
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2
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Dowker-Key PD, Jadi PK, Gill NB, Hubbard KN, Elshaarrawi A, Alfatlawy ND, Bettaieb A. A Closer Look into White Adipose Tissue Biology and the Molecular Regulation of Stem Cell Commitment and Differentiation. Genes (Basel) 2024; 15:1017. [PMID: 39202377 PMCID: PMC11353785 DOI: 10.3390/genes15081017] [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: 06/24/2024] [Revised: 07/26/2024] [Accepted: 07/28/2024] [Indexed: 09/03/2024] Open
Abstract
White adipose tissue (WAT) makes up about 20-25% of total body mass in healthy individuals and is crucial for regulating various metabolic processes, including energy metabolism, endocrine function, immunity, and reproduction. In adipose tissue research, "adipogenesis" is commonly used to refer to the process of adipocyte formation, spanning from stem cell commitment to the development of mature, functional adipocytes. Although, this term should encompass a wide range of processes beyond commitment and differentiation, to also include other stages of adipose tissue development such as hypertrophy, hyperplasia, angiogenesis, macrophage infiltration, polarization, etc.… collectively, referred to herein as the adipogenic cycle. The term "differentiation", conversely, should only be used to refer to the process by which committed stem cells progress through distinct phases of subsequent differentiation. Recognizing this distinction is essential for accurately interpreting research findings on the mechanisms and stages of adipose tissue development and function. In this review, we focus on the molecular regulation of white adipose tissue development, from commitment to terminal differentiation, and examine key functional aspects of WAT that are crucial for normal physiology and systemic metabolic homeostasis.
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Affiliation(s)
- Presley D. Dowker-Key
- Department of Nutrition, University of Tennessee Knoxville, Knoxville, TN 37996-0840, USA
| | - Praveen Kumar Jadi
- Department of Nutrition, University of Tennessee Knoxville, Knoxville, TN 37996-0840, USA
| | - Nicholas B. Gill
- Department of Nutrition, University of Tennessee Knoxville, Knoxville, TN 37996-0840, USA
| | - Katelin N. Hubbard
- Department of Nutrition, University of Tennessee Knoxville, Knoxville, TN 37996-0840, USA
| | - Ahmed Elshaarrawi
- Department of Nutrition, University of Tennessee Knoxville, Knoxville, TN 37996-0840, USA
| | - Naba D. Alfatlawy
- Department of Nutrition, University of Tennessee Knoxville, Knoxville, TN 37996-0840, USA
| | - Ahmed Bettaieb
- Department of Nutrition, University of Tennessee Knoxville, Knoxville, TN 37996-0840, USA
- Graduate School of Genome Science and Technology, University of Tennessee, Knoxville, TN 37996-0840, USA
- Department of Biochemistry, Cellular and Molecular Biology, University of Tennessee, Knoxville, TN 37996-0840, USA
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3
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Piao M, Jin Y, Jin S, Min J, Lee SH, Cho YC, Lee KY. Piperlongumine inhibits the early stage of adipogenesis in 3T3-L1 cells. Biochem Biophys Res Commun 2024; 735:150458. [PMID: 39098274 DOI: 10.1016/j.bbrc.2024.150458] [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: 07/22/2024] [Revised: 07/22/2024] [Accepted: 07/25/2024] [Indexed: 08/06/2024]
Abstract
Piperlongumine (PLM), a natural compound isolated from long peppers, has been reported to possess multiple pharmacological roles, including anti-tumor and anti-diabetic. However, the pharmacological role of PLM on adipogenesis is still unknown. In this study, we found that PLM strongly inhibited 3T3-L1 adipocyte differentiation. This inhibition was determined by the accumulation of lipid droplets and intracellular triglycerides. In addition, PLM downregulated both the mRNA and protein expression of adipogenic transcription factors, including CCAAT-enhancer binding proteins β (C/EBPβ), C/EBPα, and peroxisome proliferator-activated receptor γ (PPARγ). Based on the time-course experiment, we found that the inhibitory effect of PLM on adipogenesis was mainly involved in the early stage of adipogenesis. Studying these differential effects could uncover new mechanisms for regulating adipogenesis and new chemicals for treating obesity.
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Affiliation(s)
- Meiyu Piao
- College of Pharmacy, Research Institute of Pharmaceutical Sciences, Chonnam National University, Gwangju, 500-757, Republic of Korea
| | - Yujian Jin
- College of Pharmacy, Research Institute of Pharmaceutical Sciences, Chonnam National University, Gwangju, 500-757, Republic of Korea
| | - Shuyan Jin
- College of Pharmacy, Research Institute of Pharmaceutical Sciences, Chonnam National University, Gwangju, 500-757, Republic of Korea
| | - Junho Min
- College of Pharmacy, Research Institute of Pharmaceutical Sciences, Chonnam National University, Gwangju, 500-757, Republic of Korea
| | - Sung Ho Lee
- College of Pharmacy, Research Institute of Pharmaceutical Sciences, Chonnam National University, Gwangju, 500-757, Republic of Korea
| | - Young-Chang Cho
- College of Pharmacy, Research Institute of Pharmaceutical Sciences, Chonnam National University, Gwangju, 500-757, Republic of Korea.
| | - Kwang Youl Lee
- College of Pharmacy, Research Institute of Pharmaceutical Sciences, Chonnam National University, Gwangju, 500-757, Republic of Korea.
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4
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Chiu SP, Camacho CV, Kraus WL. Development and characterization of recombinant ADP-ribose binding reagents that allow simultaneous detection of mono and poly ADP-ribose. J Biol Chem 2024; 300:107609. [PMID: 39074634 DOI: 10.1016/j.jbc.2024.107609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2024] [Revised: 06/29/2024] [Accepted: 07/05/2024] [Indexed: 07/31/2024] Open
Abstract
ADP-ribosylation (ADPRylation) is a post-translational modification (PTM) of proteins mediated by the activity of a variety of ADP-ribosyltransferase (ART) enzymes, such as the Poly (ADP-ribose) Polymerase (PARP) family of proteins. This PTM is diverse in both form and biological functions, which makes it a highly interesting modification, but difficult to study due to limitations in reagents available to detect the diversity of ADPRylation. Recently we developed a set of recombinant antibody-like ADP-ribose (ADPR) binding proteins using naturally occurring ADPR binding domains (ARBDs), including macrodomains and WWE domains, functionalized by fusion to the constant "Fc" region of rabbit immunoglobulin. Herein, we present an expansion of this biological toolkit, where we have replaced the rabbit Fc sequence with the sequence from two other species, mouse and goat. These new reagents are based on a previously characterized set of naturally occurring ARBDs with known specificity. Characterization of the new reagents demonstrates that they can be detected in a species-dependent manner by secondary immunological tools, recognize specific ADPR moieties, and can be used for simultaneous detection of mono ADPR and poly ADPR at single-cell resolution in various antibody-based assays. The expansion of this toolkit will allow for more multiplexed assessments of the complexity of ADPRylation biology in many biological systems.
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Affiliation(s)
- Shu-Ping Chiu
- Laboratory of Signaling and Gene Regulation, Cecil H. and Ida Green Center for Reproductive Biology Sciences, University of Texas Southwestern Medical Center, Dallas, Texas, USA; Section of Laboratory Research, Department of Obstetrics and Gynecology, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Cristel V Camacho
- Laboratory of Signaling and Gene Regulation, Cecil H. and Ida Green Center for Reproductive Biology Sciences, University of Texas Southwestern Medical Center, Dallas, Texas, USA; Section of Laboratory Research, Department of Obstetrics and Gynecology, University of Texas Southwestern Medical Center, Dallas, Texas, USA.
| | - W Lee Kraus
- Laboratory of Signaling and Gene Regulation, Cecil H. and Ida Green Center for Reproductive Biology Sciences, University of Texas Southwestern Medical Center, Dallas, Texas, USA; Section of Laboratory Research, Department of Obstetrics and Gynecology, University of Texas Southwestern Medical Center, Dallas, Texas, USA.
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5
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Velez-delValle C, Hernandez-Mosqueira CP, Castro-Rodriguez LI, Vazquez-Sandoval A, Marsch-Moreno M, Kuri-Harcuch W. Gene expression and characterization of clonally derived murine embryonic brown and brite adipocytes. FEBS Open Bio 2024. [PMID: 38972757 DOI: 10.1002/2211-5463.13861] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Revised: 05/29/2024] [Accepted: 06/25/2024] [Indexed: 07/09/2024] Open
Abstract
White adipocytes store energy, while brown and brite adipocytes release heat via nonshivering thermogenesis. In this study, we characterized two murine embryonic clonal preadipocyte lines, EB5 and EB7, each displaying unique gene marker expression profiles. EB5 cells differentiate into brown adipocytes, whereas EB7 cells into brite (also known as beige) adipocytes. To draw a comprehensive comparison, we contrasted the gene expression patterns, adipogenic capacity, as well as carbohydrate and lipid metabolism of these cells to that of F442A, a well-known white preadipocyte and adipocyte model. We found that commitment to differentiation in both EB5 and EB7 cells can be induced by 3-Isobutyl-1-methylxanthine/dexamethasone (Mix/Dex) and staurosporine/dexamethasone (St/Dex) treatments. Additionally, the administration of rosiglitazone significantly enhances the brown and brite adipocyte phenotypes. Our data also reveal the involvement of a series of genes in the transcriptional cascade guiding adipogenesis, pinpointing GSK3β as a critical regulator for both EB5 and EB7 adipogenesis. In a developmental context, we observe that, akin to brown fat progenitors, brite fat progenitors make their appearance in murine development by 11-12 days of gestation or potentially earlier. This result contributes to our understanding of adipocyte lineage specification during embryonic development. In conclusion, EB5 and EB7 cell lines are valuable for research into adipocyte biology, providing insights into the differentiation and development of brown and beige adipocytes. Furthermore, they could be useful for the characterization of drugs targeting energy balance for the treatment of obesity and metabolic diseases.
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Affiliation(s)
- Cristina Velez-delValle
- Department of Cell Biology, Center for Research and Advanced Studies (Cinvestav), Mexico City, Mexico
| | | | | | - Alfredo Vazquez-Sandoval
- Department of Cell Biology, Center for Research and Advanced Studies (Cinvestav), Mexico City, Mexico
| | - Meytha Marsch-Moreno
- Department of Cell Biology, Center for Research and Advanced Studies (Cinvestav), Mexico City, Mexico
| | - Walid Kuri-Harcuch
- Department of Cell Biology, Center for Research and Advanced Studies (Cinvestav), Mexico City, Mexico
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6
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Kaczmarek I, Suchý T, Strnadová M, Thor D. Qualitative and quantitative analysis of lipid droplets in mature 3T3-L1 adipocytes using oil red O. STAR Protoc 2024; 5:102977. [PMID: 38875117 PMCID: PMC11225905 DOI: 10.1016/j.xpro.2024.102977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 01/31/2024] [Accepted: 03/08/2024] [Indexed: 06/16/2024] Open
Abstract
By differentiating into mature adipocytes, 3T3-L1 cells can be utilized as a model cell line to investigate (pre)adipocyte function in vitro. Here, we present a protocol for combining qualitative and quantitative analysis of lipid droplets in mature 3T3-L1 adipocytes using oil red O. We describe steps to differentiate 3T3-L1 preadipocytes to adipocytes and give detailed procedures to determine total lipid amount as well as lipid droplet size and number using microscopic devices and an ImageJ macro. For complete details on the use and execution of this protocol, please refer to Kaczmarek et al.1.
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Affiliation(s)
- Isabell Kaczmarek
- Rudolf Schönheimer Institute of Biochemistry, Medical Faculty, Leipzig University, Leipzig, 04103 Saxony, Germany.
| | - Tomáš Suchý
- Rudolf Schönheimer Institute of Biochemistry, Medical Faculty, Leipzig University, Leipzig, 04103 Saxony, Germany
| | - Martina Strnadová
- Rudolf Schönheimer Institute of Biochemistry, Medical Faculty, Leipzig University, Leipzig, 04103 Saxony, Germany
| | - Doreen Thor
- Rudolf Schönheimer Institute of Biochemistry, Medical Faculty, Leipzig University, Leipzig, 04103 Saxony, Germany.
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7
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Strnadová M, Thor D, Kaczmarek I. Protocol for changing gene expression in 3T3-L1 (pre)adipocytes using siRNA-mediated knockdown. STAR Protoc 2024; 5:103075. [PMID: 38805394 PMCID: PMC11153903 DOI: 10.1016/j.xpro.2024.103075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Revised: 03/21/2024] [Accepted: 04/26/2024] [Indexed: 05/30/2024] Open
Abstract
3T3-L1 is a model cell line which can be differentiated from preadipocytes into mature adipocytes. Here, we present a protocol for changing gene expression in 3T3-L1 (pre)adipocytes using small interfering RNA (siRNA)-mediated knockdown. We describe steps to perform the knockdown of a certain gene prior to differentiation (day 4) to analyze the impact on adipogenesis. We then detail procedures for knockdown on day 8 of differentiation to study the role of a certain gene in mature adipocyte function. For complete details on the use and execution of this protocol, please refer to Kaczmarek et al.1.
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Affiliation(s)
- Martina Strnadová
- Rudolf Schönheimer Institute of Biochemistry, Medical Faculty, Leipzig University, Leipzig, 04103 Saxony, Germany
| | - Doreen Thor
- Rudolf Schönheimer Institute of Biochemistry, Medical Faculty, Leipzig University, Leipzig, 04103 Saxony, Germany.
| | - Isabell Kaczmarek
- Rudolf Schönheimer Institute of Biochemistry, Medical Faculty, Leipzig University, Leipzig, 04103 Saxony, Germany.
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8
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Andele PK, Palazzolo S, Corona G, Caligiuri I, Kamensek U, Cemazar M, Canzonieri V, Rizzolio F. Human Omental Mature Adipocytes used as Paclitaxel Reservoir for Cell-Based Therapy in Ovarian Cancer. Adv Healthc Mater 2024; 13:e2304206. [PMID: 38334216 DOI: 10.1002/adhm.202304206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 01/20/2024] [Indexed: 02/10/2024]
Abstract
Primary human omental adipocytes and ovarian cancer(OC) cells establish a bidirectional communication in which tumor driven lipolysis is induced in adipocytes and the resulting fatty acids are delivered to cancer cells within the tumor microenvironment. Despite meaningful improvement in the treatment of OC, its efficacy is still limited by hydrophobicity and untargeted effects related to chemotherapeutics. Herein, omental adipocytes are firstly used as a reservoir for paclitaxel, named Living Paclitaxel Bullets (LPB) and secondly benefit from the established dialogue between adipocytes and cancer cells to engineer a drug delivery process that target specifically cancer cells. These results show that mature omental adipocytes can successfully uptake paclitaxel and deliver it to OC cells in a transwell coculture based in vitro model. In addition, the efficacy of this proof-of-concept has been demonstrated in vivo and induces a significant inhibition of tumor growth on a xenograft tumor model. The use of mature adipocytes can be suitable for clinical prospection in a cell-based therapy system, due to their mature and differentiated state, to avoid risks related to uncontrolled cell de novo proliferation capacity after the delivery of the antineoplastic drug as observed with other cell types when employed as drug carriers.
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Affiliation(s)
- Pacome K Andele
- Department of Molecular Sciences and Nanosystems, Ca' Foscari University of Venice, Venice, 30172, Italy
- Department of Pathology, IRCCS CRO Aviano National Cancer Institute, Aviano, 33081, Italy
| | - Stefano Palazzolo
- Department of Pathology, IRCCS CRO Aviano National Cancer Institute, Aviano, 33081, Italy
| | - Giuseppe Corona
- Immunopathology and Cancer Biomarkers unit, Centro di Riferimento Oncologico di Aviano (CRO) IRCCS, Aviano, 33081, Italy
| | - Isabella Caligiuri
- Department of Pathology, IRCCS CRO Aviano National Cancer Institute, Aviano, 33081, Italy
| | - Urska Kamensek
- Department of Experimental Oncology, Institute of Oncology Ljubljana, Ljubljana, 1000, Slovenia
| | - Maja Cemazar
- Department of Experimental Oncology, Institute of Oncology Ljubljana, Ljubljana, 1000, Slovenia
| | - Vincenzo Canzonieri
- Department of Pathology, IRCCS CRO Aviano National Cancer Institute, Aviano, 33081, Italy
- Department of Medical, Surgical and Health Sciences, University of Trieste, Trieste, 34127, Italy
| | - Flavio Rizzolio
- Department of Molecular Sciences and Nanosystems, Ca' Foscari University of Venice, Venice, 30172, Italy
- Department of Pathology, IRCCS CRO Aviano National Cancer Institute, Aviano, 33081, Italy
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9
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Tan J, Virtue S, Norris DM, Conway OJ, Yang M, Bidault G, Gribben C, Lugtu F, Kamzolas I, Krycer JR, Mills RJ, Liang L, Pereira C, Dale M, Shun-Shion AS, Baird HJ, Horscroft JA, Sowton AP, Ma M, Carobbio S, Petsalaki E, Murray AJ, Gershlick DC, Nathan JA, Hudson JE, Vallier L, Fisher-Wellman KH, Frezza C, Vidal-Puig A, Fazakerley DJ. Limited oxygen in standard cell culture alters metabolism and function of differentiated cells. EMBO J 2024; 43:2127-2165. [PMID: 38580776 PMCID: PMC11148168 DOI: 10.1038/s44318-024-00084-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Revised: 02/20/2024] [Accepted: 03/03/2024] [Indexed: 04/07/2024] Open
Abstract
The in vitro oxygen microenvironment profoundly affects the capacity of cell cultures to model physiological and pathophysiological states. Cell culture is often considered to be hyperoxic, but pericellular oxygen levels, which are affected by oxygen diffusivity and consumption, are rarely reported. Here, we provide evidence that several cell types in culture actually experience local hypoxia, with important implications for cell metabolism and function. We focused initially on adipocytes, as adipose tissue hypoxia is frequently observed in obesity and precedes diminished adipocyte function. Under standard conditions, cultured adipocytes are highly glycolytic and exhibit a transcriptional profile indicative of physiological hypoxia. Increasing pericellular oxygen diverted glucose flux toward mitochondria, lowered HIF1α activity, and resulted in widespread transcriptional rewiring. Functionally, adipocytes increased adipokine secretion and sensitivity to insulin and lipolytic stimuli, recapitulating a healthier adipocyte model. The functional benefits of increasing pericellular oxygen were also observed in macrophages, hPSC-derived hepatocytes and cardiac organoids. Our findings demonstrate that oxygen is limiting in many terminally-differentiated cell types, and that considering pericellular oxygen improves the quality, reproducibility and translatability of culture models.
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Affiliation(s)
- Joycelyn Tan
- Metabolic Research Laboratories, Wellcome-Medical Research Council Institute of Metabolic Science, University of Cambridge, Cambridge, CB2 0QQ, UK
| | - Sam Virtue
- Metabolic Research Laboratories, Wellcome-Medical Research Council Institute of Metabolic Science, University of Cambridge, Cambridge, CB2 0QQ, UK.
| | - Dougall M Norris
- Metabolic Research Laboratories, Wellcome-Medical Research Council Institute of Metabolic Science, University of Cambridge, Cambridge, CB2 0QQ, UK
| | - Olivia J Conway
- Metabolic Research Laboratories, Wellcome-Medical Research Council Institute of Metabolic Science, University of Cambridge, Cambridge, CB2 0QQ, UK
| | - Ming Yang
- MRC Cancer Unit, University of Cambridge, Cambridge Biomedical Campus, Cambridge, CB2 0XZ, UK
- CECAD Research Center, Faculty of Medicine, University Hospital Cologne, Cologne, 50931, Germany
| | - Guillaume Bidault
- Metabolic Research Laboratories, Wellcome-Medical Research Council Institute of Metabolic Science, University of Cambridge, Cambridge, CB2 0QQ, UK
| | - Christopher Gribben
- Wellcome-MRC Cambridge Stem Cell Institute, University of Cambridge, Cambridge, CB2 0AW, UK
| | - Fatima Lugtu
- Wellcome-MRC Cambridge Stem Cell Institute, University of Cambridge, Cambridge, CB2 0AW, UK
| | - Ioannis Kamzolas
- Metabolic Research Laboratories, Wellcome-Medical Research Council Institute of Metabolic Science, University of Cambridge, Cambridge, CB2 0QQ, UK
- European Molecular Biology Laboratory, European Bioinformatics Institute, Wellcome Genome Campus, Hinxton, CB10 1SD, UK
| | - James R Krycer
- QIMR Berghofer Medical Research Institute, Brisbane, Queensland, 4006, Australia
- Faculty of Health, School of Biomedical Sciences, Queensland University of Technology, Brisbane, Queensland, 4000, Australia
| | - Richard J Mills
- QIMR Berghofer Medical Research Institute, Brisbane, Queensland, 4006, Australia
- Faculty of Health, School of Biomedical Sciences, Queensland University of Technology, Brisbane, Queensland, 4000, Australia
| | - Lu Liang
- Metabolic Research Laboratories, Wellcome-Medical Research Council Institute of Metabolic Science, University of Cambridge, Cambridge, CB2 0QQ, UK
| | - Conceição Pereira
- Cambridge Institute for Medical Research, University of Cambridge, Cambridge, CB2 0XY, UK
| | - Martin Dale
- Metabolic Research Laboratories, Wellcome-Medical Research Council Institute of Metabolic Science, University of Cambridge, Cambridge, CB2 0QQ, UK
| | - Amber S Shun-Shion
- Metabolic Research Laboratories, Wellcome-Medical Research Council Institute of Metabolic Science, University of Cambridge, Cambridge, CB2 0QQ, UK
| | - Harry Jm Baird
- Metabolic Research Laboratories, Wellcome-Medical Research Council Institute of Metabolic Science, University of Cambridge, Cambridge, CB2 0QQ, UK
| | - James A Horscroft
- Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge, CB2 3EL, UK
| | - Alice P Sowton
- Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge, CB2 3EL, UK
| | - Marcella Ma
- Metabolic Research Laboratories, Wellcome-Medical Research Council Institute of Metabolic Science, University of Cambridge, Cambridge, CB2 0QQ, UK
| | - Stefania Carobbio
- Metabolic Research Laboratories, Wellcome-Medical Research Council Institute of Metabolic Science, University of Cambridge, Cambridge, CB2 0QQ, UK
- Centro de Investigacion Principe Felipe, Valencia, 46012, Spain
| | - Evangelia Petsalaki
- European Molecular Biology Laboratory, European Bioinformatics Institute, Wellcome Genome Campus, Hinxton, CB10 1SD, UK
| | - Andrew J Murray
- Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge, CB2 3EL, UK
| | - David C Gershlick
- Cambridge Institute for Medical Research, University of Cambridge, Cambridge, CB2 0XY, UK
| | - James A Nathan
- Cambridge Institute of Therapeutic Immunology and Infectious Disease (CITIID), Jeffrey Cheah Biomedical Centre, Department of Medicine, University of Cambridge, Cambridge, CB2 0AW, UK
| | - James E Hudson
- QIMR Berghofer Medical Research Institute, Brisbane, Queensland, 4006, Australia
- Faculty of Health, School of Biomedical Sciences, Queensland University of Technology, Brisbane, Queensland, 4000, Australia
- Faculty of Medicine, School of Biomedical Sciences, The University of Queensland, Brisbane, QLD, 4072, Australia
| | - Ludovic Vallier
- Wellcome-MRC Cambridge Stem Cell Institute, University of Cambridge, Cambridge, CB2 0AW, UK
| | - Kelsey H Fisher-Wellman
- Department of Physiology, Brody School of Medicine, East Carolina University, Greenville, NC, 27834, USA
- East Carolina Diabetes and Obesity Institute, East Carolina University, Greenville, NC, 27834, USA
- UNC Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC, 27599, USA
| | - Christian Frezza
- MRC Cancer Unit, University of Cambridge, Cambridge Biomedical Campus, Cambridge, CB2 0XZ, UK
- CECAD Research Center, Faculty of Medicine, University Hospital Cologne, Cologne, 50931, Germany
| | - Antonio Vidal-Puig
- Metabolic Research Laboratories, Wellcome-Medical Research Council Institute of Metabolic Science, University of Cambridge, Cambridge, CB2 0QQ, UK.
- Centro de Investigacion Principe Felipe, Valencia, 46012, Spain.
| | - Daniel J Fazakerley
- Metabolic Research Laboratories, Wellcome-Medical Research Council Institute of Metabolic Science, University of Cambridge, Cambridge, CB2 0QQ, UK.
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10
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Mora I, Puiggròs F, Serras F, Gil-Cardoso K, Escoté X. Emerging models for studying adipose tissue metabolism. Biochem Pharmacol 2024; 223:116123. [PMID: 38484851 DOI: 10.1016/j.bcp.2024.116123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 03/11/2024] [Accepted: 03/11/2024] [Indexed: 03/17/2024]
Abstract
Understanding adipose metabolism is essential for addressing obesity and related health concerns. However, the ethical and scientific pressure to animal testing, aligning with the 3Rs, has triggered the implementation of diverse alternative models for analysing anomalies in adipose metabolism. In this review, we will address this issue from various perspectives. Traditional adipocyte cell cultures, whether animal or human-derived, offer a fundamental starting point. These systems have their merits but may not fully replicate in vivo complexity. Established cell lines are valuable for high-throughput screening but may lack the authenticity of primary-derived adipocytes, which closely mimic native tissue. To enhance model sophistication, spheroids have been introduced. These three-dimensional cultures better mimicking the in vivo microenvironment, enabling the study of intricate cell-cell interactions, gene expression, and metabolic pathways. Organ-on-a-chip (OoC) platforms take this further by integrating multiple cell types into microfluidic devices, simulating tissue-level functions. Adipose-OoC (AOoC) provides dynamic environments with applications spanning drug testing to personalized medicine and nutrition. Beyond in vitro models, genetically amenable organisms (Caenorhabditis elegans, Drosophila melanogaster, and zebrafish larvae) have become powerful tools for investigating fundamental molecular mechanisms that govern adipose tissue functions. Their genetic tractability allows for efficient manipulation and high-throughput studies. In conclusion, a diverse array of research models is crucial for deciphering adipose metabolism. By leveraging traditional adipocyte cell cultures, primary-derived cells, spheroids, AOoCs, and lower organism models, we bridge the gap between animal testing and a more ethical, scientifically robust, and human-relevant approach, advancing our understanding of adipose tissue metabolism and its impact on health.
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Affiliation(s)
- Ignasi Mora
- Brudy Technology S.L., 08006 Barcelona, Spain
| | - Francesc Puiggròs
- Eurecat, Centre Tecnològic de Catalunya, Biotechnology Area, 43204 Reus, Spain
| | - Florenci Serras
- Department of Genetics, Microbiology and Statistics, School of Biology, University of Barcelona and Institute of Biomedicine of the University of Barcelona, Diagonal 643, 08028 Barcelona, Spain
| | - Katherine Gil-Cardoso
- Eurecat, Centre Tecnològic de Catalunya, Nutrition and Health Unit, 43204 Reus, Spain
| | - Xavier Escoté
- Eurecat, Centre Tecnològic de Catalunya, Nutrition and Health Unit, 43204 Reus, Spain.
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11
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Yoo D, Horacek M, Chae MK, Kim JY, Bu P, Yoon JS. The Effect of Rho Kinase Inhibitors on In Vitro Human Orbital Preadipocytes. Ophthalmic Plast Reconstr Surg 2024; 40:181-186. [PMID: 37995134 DOI: 10.1097/iop.0000000000002523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2023]
Abstract
PURPOSE To identify the effects of Rho Kinase (ROCK) inhibitor medications on human orbital adipogenesis, fibroblast proliferation, and fibrosis. METHODS Orbital adipose tissue was obtained from patients with Graves' ophthalmopathy (GO) as well as controls (non-GO or normal) after informed consent was done. These tissue samples were cultured and adipogenesis was initiated. Levels of Rho Kinase as well as cellular mediators of orbital inflammation and fibrosis. The same cultures and measurements were then repeated with the use of a ROCK inhibitor (KD025-ROCK2) to assess for changes in adipogenesis as well as markers associated with inflammation and fibrosis. RESULTS Rho Kinase levels in GO tissue were more highly expressed than in controls. These levels were suppressed with the use of the ROCK inhibitor KD025. There was a dose-dependent reduction in differentiation of orbital adipocytes with the use of KD025. KD025 reduced the levels of fibrosis-related gene expression. Finally, there was a significant reduction of transforming growth factor beta mediated phosphorylation signaling pathways in the KD025-treated GO tissue. CONCLUSION This study shows that the ROCK inhibitor, KD025, helps to reduce the expression of ROCK in GO tissue along with reducing orbital adipocyte differentiation as well as cell mediators involved in fibrosis that occurs in GO.
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Affiliation(s)
- David Yoo
- Department of Ophthalmology, Loyola University Medical Center, Maywood, Illinois, U.S.A
| | - Meredith Horacek
- Department of Ophthalmology, Loyola University Medical Center, Maywood, Illinois, U.S.A
| | - Min Kyung Chae
- Department of Ophthalmology, Institute of Vision Research, Yonsei University College of Medicine, Seoul, South Korea
| | - Ji Young Kim
- Department of Ophthalmology, Institute of Vision Research, Yonsei University College of Medicine, Seoul, South Korea
| | - Ping Bu
- Department of Ophthalmology, Loyola University Medical Center, Maywood, Illinois, U.S.A
| | - Jin Sook Yoon
- Department of Ophthalmology, Institute of Vision Research, Yonsei University College of Medicine, Seoul, South Korea
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12
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Li X, Zeng S, Chen L, Zhang Y, Li X, Zhang B, Su D, Du Q, Zhang J, Wang H, Zhong Z, Zhang J, Li P, Jiang A, Long K, Li M, Ge L. An intronic enhancer of Cebpa regulates adipocyte differentiation and adipose tissue development via long-range loop formation. Cell Prolif 2024; 57:e13552. [PMID: 37905345 PMCID: PMC10905358 DOI: 10.1111/cpr.13552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 08/29/2023] [Accepted: 09/11/2023] [Indexed: 11/02/2023] Open
Abstract
Cebpa is a master transcription factor gene for adipogenesis. However, the mechanisms of enhancer-promoter chromatin interactions controlling Cebpa transcriptional regulation during adipogenic differentiation remain largely unknown. To reveal how the three-dimensional structure of Cebpa changes during adipogenesis, we generated high-resolution chromatin interactions of Cebpa in 3T3-L1 preadipocytes and 3T3-L1 adipocytes using circularized chromosome conformation capture sequencing (4C-seq). We revealed dramatic changes in chromatin interactions and chromatin status at interaction sites during adipogenic differentiation. Based on this, we identified five active enhancers of Cebpa in 3T3-L1 adipocytes through epigenomic data and luciferase reporter assays. Next, epigenetic repression of Cebpa-L1-AD-En2 or -En3 by the dCas9-KRAB system significantly down-regulated Cebpa expression and inhibited adipocyte differentiation. Furthermore, experimental depletion of cohesin decreased the interaction intensity between Cebpa-L1-AD-En2 and the Cebpa promoter and down-regulated Cebpa expression, indicating that long-range chromatin loop formation was mediated by cohesin. Two transcription factors, RXRA and PPARG, synergistically regulate the activity of Cebpa-L1-AD-En2. To test whether Cebpa-L1-AD-En2 plays a role in adipose tissue development, we injected dCas9-KRAB-En2 lentivirus into the inguinal white adipose tissue (iWAT) of mice to suppress the activity of Cebpa-L1-AD-En2. Repression of Cebpa-L1-AD-En2 significantly decreased Cebpa expression and adipocyte size, altered iWAT transcriptome, and affected iWAT development. We identified functional enhancers regulating Cebpa expression and clarified the crucial roles of Cebpa-L1-AD-En2 and Cebpa promoter interaction in adipocyte differentiation and adipose tissue development.
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Affiliation(s)
- Xiaokai Li
- State Key Laboratory of Swine and Poultry Breeding IndustrySichuan Agricultural UniversityChengduChina
- Livestock and Poultry Multi‐omics Key Laboratory of Ministry of Agriculture and Rural Affairs, College of Animal Science and TechnologySichuan Agricultural UniversityChengduChina
| | - Sha Zeng
- State Key Laboratory of Swine and Poultry Breeding IndustrySichuan Agricultural UniversityChengduChina
- Livestock and Poultry Multi‐omics Key Laboratory of Ministry of Agriculture and Rural Affairs, College of Animal Science and TechnologySichuan Agricultural UniversityChengduChina
| | - Li Chen
- Chongqing Academy of Animal SciencesChongqingChina
- National Center of Technology Innovation for PigsChongqingChina
- Key Laboratory of Pig Industry ScienceMinistry of AgricultureChongqingChina
| | - Yu Zhang
- State Key Laboratory of Swine and Poultry Breeding IndustrySichuan Agricultural UniversityChengduChina
- Livestock and Poultry Multi‐omics Key Laboratory of Ministry of Agriculture and Rural Affairs, College of Animal Science and TechnologySichuan Agricultural UniversityChengduChina
| | - Xuemin Li
- State Key Laboratory of Swine and Poultry Breeding IndustrySichuan Agricultural UniversityChengduChina
- Livestock and Poultry Multi‐omics Key Laboratory of Ministry of Agriculture and Rural Affairs, College of Animal Science and TechnologySichuan Agricultural UniversityChengduChina
| | - Biwei Zhang
- State Key Laboratory of Swine and Poultry Breeding IndustrySichuan Agricultural UniversityChengduChina
- Livestock and Poultry Multi‐omics Key Laboratory of Ministry of Agriculture and Rural Affairs, College of Animal Science and TechnologySichuan Agricultural UniversityChengduChina
| | - Duo Su
- State Key Laboratory of Swine and Poultry Breeding IndustrySichuan Agricultural UniversityChengduChina
- Livestock and Poultry Multi‐omics Key Laboratory of Ministry of Agriculture and Rural Affairs, College of Animal Science and TechnologySichuan Agricultural UniversityChengduChina
| | - Qinjiao Du
- State Key Laboratory of Swine and Poultry Breeding IndustrySichuan Agricultural UniversityChengduChina
- Livestock and Poultry Multi‐omics Key Laboratory of Ministry of Agriculture and Rural Affairs, College of Animal Science and TechnologySichuan Agricultural UniversityChengduChina
| | - Jiaman Zhang
- State Key Laboratory of Swine and Poultry Breeding IndustrySichuan Agricultural UniversityChengduChina
- Livestock and Poultry Multi‐omics Key Laboratory of Ministry of Agriculture and Rural Affairs, College of Animal Science and TechnologySichuan Agricultural UniversityChengduChina
| | - Haoming Wang
- State Key Laboratory of Swine and Poultry Breeding IndustrySichuan Agricultural UniversityChengduChina
- Livestock and Poultry Multi‐omics Key Laboratory of Ministry of Agriculture and Rural Affairs, College of Animal Science and TechnologySichuan Agricultural UniversityChengduChina
| | - Zhining Zhong
- State Key Laboratory of Swine and Poultry Breeding IndustrySichuan Agricultural UniversityChengduChina
- Livestock and Poultry Multi‐omics Key Laboratory of Ministry of Agriculture and Rural Affairs, College of Animal Science and TechnologySichuan Agricultural UniversityChengduChina
| | - Jinwei Zhang
- Chongqing Academy of Animal SciencesChongqingChina
- National Center of Technology Innovation for PigsChongqingChina
- Key Laboratory of Pig Industry ScienceMinistry of AgricultureChongqingChina
| | - Penghao Li
- Jinxin Research Institute for Reproductive Medicine and GeneticsSichuan Jinxin Xi'nan Women's and Children's HospitalChengduChina
| | - Anan Jiang
- State Key Laboratory of Swine and Poultry Breeding IndustrySichuan Agricultural UniversityChengduChina
- Livestock and Poultry Multi‐omics Key Laboratory of Ministry of Agriculture and Rural Affairs, College of Animal Science and TechnologySichuan Agricultural UniversityChengduChina
| | - Keren Long
- State Key Laboratory of Swine and Poultry Breeding IndustrySichuan Agricultural UniversityChengduChina
- Livestock and Poultry Multi‐omics Key Laboratory of Ministry of Agriculture and Rural Affairs, College of Animal Science and TechnologySichuan Agricultural UniversityChengduChina
- Chongqing Academy of Animal SciencesChongqingChina
| | - Mingzhou Li
- State Key Laboratory of Swine and Poultry Breeding IndustrySichuan Agricultural UniversityChengduChina
- Livestock and Poultry Multi‐omics Key Laboratory of Ministry of Agriculture and Rural Affairs, College of Animal Science and TechnologySichuan Agricultural UniversityChengduChina
| | - Liangpeng Ge
- Chongqing Academy of Animal SciencesChongqingChina
- National Center of Technology Innovation for PigsChongqingChina
- Key Laboratory of Pig Industry ScienceMinistry of AgricultureChongqingChina
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13
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Zhong Q, Wang X, Wei R, Liu F, Alamin M, Sun J, Gui L. Equisetin inhibits adiposity through AMPK-dependent regulation of brown adipocyte differentiation. Heliyon 2024; 10:e25458. [PMID: 38327434 PMCID: PMC10847917 DOI: 10.1016/j.heliyon.2024.e25458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 01/25/2024] [Accepted: 01/26/2024] [Indexed: 02/09/2024] Open
Abstract
Obesity has a significant impact on endocrine function, which leads to metabolic diseases including diabetes, insulin resistance, and other complications associated with obesity. Development of effective and safe anti-obesity drugs is imperative and necessary. Equisetin (EQST), a tetramate-containing marine fungal product, was reported to inhibit bacterial fatty acid synthesis and affect mitochondrial metabolism. It is tempting to speculate that EQST might have anti-obesity effects. This study was designed to explore anti-obesity effects and underlying mechanism of EQST on 3T3-L1 adipocytes differentiated from 3T3-L1 cells. Oil Red O staining showed that EQST reduced lipid accumulation in 3T3-L1 adipocytes. Quantitative real-time polymerase chain reaction and Western blot analysis revealed that EQST significantly inhibited expression of adipogenesis/lipogenesis-related genes C/ebp-α, Ppar-γ, Srebp1c, Fas, and reduced protein levels. There was also increased expression of key genes and protein levels involved in lipolysis (Perilipin, Atgl, Hsl), brown adipocyte differentiation (Prdm16, Ucp1), mitochondrial biogenesis (Pgc1α, Tfam) and β-oxidation Acsl1, Cpt1. Moreover, mitochondrial content, their membrane potential ΔΨM, and respiratory chain genes Mt-Co1, Cox7a1, Cox8b, and Cox4 (and protein) exhibited marked increase in expression upon EQST treatment, along with increased protein levels. Importantly, EQST induced expression and activation of AMPK, which was compromised by the AMPK inhibitor dorsomorphin, leading to rescue of EQST-downregulated Fas expression and a reduction of the EQST-increased expression of Pgc1α, Ucp1, and Cox4. Together, EQST robustly promotes fat clearance through the AMPK pathway, these results supporting EQST as a strong candidate for the development into an anti-obesity therapeutic agent.
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Affiliation(s)
- Qin Zhong
- Center for Tissue Engineering and Stem Cell Research, Guizhou Medical University, University Town, Gui'an New District, Guiyang City, Guizhou Province 550025, China
- Clinical Medical Research Center, Affiliated Hospital of Guizhou Medical University No.28 Beijing Road, Guiyang City, Guizhou Province 550001, China
| | - Xian Wang
- Center for Tissue Engineering and Stem Cell Research, Guizhou Medical University, University Town, Gui'an New District, Guiyang City, Guizhou Province 550025, China
| | - Ruiran Wei
- Center for Tissue Engineering and Stem Cell Research, Guizhou Medical University, University Town, Gui'an New District, Guiyang City, Guizhou Province 550025, China
- Department of Basic Medical Sciences, Clinical College of Anhui Medical University, No.69 Meishan Road Hefei City, Anhui Province 230031, China
| | - Fang Liu
- Center for Tissue Engineering and Stem Cell Research, Guizhou Medical University, University Town, Gui'an New District, Guiyang City, Guizhou Province 550025, China
| | - Md Alamin
- Department of Biology, College of Life Sciences, Southern Medical University of Science and Technology, No.1088 Xueyuan Road, Shenzhen City, Guangdong Province 518055, China
| | - Jiajia Sun
- Institute of Obstetrics and Gynecology, Shenzhen Peking University-Hong Kong University of Science and Technology Medical Center, No.1120 Lianhua Road, Futian District, Shenzhen City, Guangdong Province 518000, China
| | - Liming Gui
- Center for Tissue Engineering and Stem Cell Research, Guizhou Medical University, University Town, Gui'an New District, Guiyang City, Guizhou Province 550025, China
- Institute of Obstetrics and Gynecology, Shenzhen Peking University-Hong Kong University of Science and Technology Medical Center, No.1120 Lianhua Road, Futian District, Shenzhen City, Guangdong Province 518000, China
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14
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Erdelsky MR, Groves SA, Shah C, Delios SB, Umana MB, Maurice DH. Phosphodiesterase 4 activity uniquely regulates ciliary cAMP-dependent 3T3-L1 adipogenesis. Cell Signal 2024; 113:110981. [PMID: 37981066 DOI: 10.1016/j.cellsig.2023.110981] [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: 09/12/2023] [Revised: 11/09/2023] [Accepted: 11/14/2023] [Indexed: 11/21/2023]
Abstract
Recent evidence indicates that the presence of a primary cilium (PC), and of selective cAMP signaling within this smallest of organelles, promotes adipogenic differentiation of 3T3-L1 preadipocytes incubated in media supplemented with either a natural (docosahexaenoic acid, DHA), or a synthetic (TUG-891), free fatty acid receptor 4 (FFAR4) agonist. Indeed, in this earlier work, activation of ciliary FFAR4 in 3T3-L1 cells was correlated with selective increases in PC cAMP and adipogenesis in these cells. However, this study was silent on the role of local PC cAMP phosphodiesterases (PDEs)-mediated events in regulating these adipogenic responses and on the identity of cAMP PDEs that could regulate the "pool" of ciliary cAMP accessed by FFAR4 agonists. In this context, we have identified the PDEs expressed by 3T3-L1 preadipocytes and showed that of these, only PDE4 inhibition promotes FFAR4-mediated adipogenesis. We propose that this work will identify more selective therapeutic targets through which to control adipogenesis, and perhaps the differentiation of other stem cells in which ciliary cAMP is critical.
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Affiliation(s)
- Mikayla R Erdelsky
- Biomedical and Molecular Sciences, Queen's University, Kingston, ON, Canada
| | - Sarah A Groves
- Biomedical and Molecular Sciences, Queen's University, Kingston, ON, Canada
| | - Charmi Shah
- Biomedical and Molecular Sciences, Queen's University, Kingston, ON, Canada
| | - Samantha B Delios
- Biomedical and Molecular Sciences, Queen's University, Kingston, ON, Canada
| | - M Bibiana Umana
- Biomedical and Molecular Sciences, Queen's University, Kingston, ON, Canada
| | - Donald H Maurice
- Biomedical and Molecular Sciences, Queen's University, Kingston, ON, Canada.
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15
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Guo YF, Sun JY, Liu Y, Liu ZY, Huang Y, Xiao Y, Su T. lncRNA Hnscr Regulates Lipid Metabolism by Mediating Adipocyte Lipolysis. Endocrinology 2023; 164:bqad147. [PMID: 37788569 PMCID: PMC10628467 DOI: 10.1210/endocr/bqad147] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2023] [Revised: 09/26/2023] [Accepted: 09/27/2023] [Indexed: 10/05/2023]
Abstract
Obesity is a process of fat accumulation due to the imbalance between energy intake and consumption. Long noncoding RNA (lncRNA) Hnscr is crucial for metabolic regulation, but its roles in lipid metabolism during obesity are still unknown. In this article, we found that the expression of Hnscr gradually decreased in adipose tissues of diet-induced obese mice. Furthermore, the deletion of Hnscr promoted an increase in body weight and adipose tissue weight by upregulating the expression of lipogenesis genes and downregulating lipolysis genes in inguinal white adipose tissue (iWAT) and brown adipose tissue. In vitro knockdown of Hnscr in adipocytes resulted in reduced lipolysis of adipocytes. Overexpression of Hnscr by adenovirus or drug mimics showed the opposite. Mechanistically, Hnscr regulated adipose lipid metabolism by mediating the cyclic adenosine monophosphate/protein kinase A signaling pathway. This study identifies the initial characterization of Hnscr as a critical modifier that regulates lipid metabolism, suggesting that lncRNA Hnscr is a potential target for treating obesity.
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Affiliation(s)
- Yi-Fan Guo
- Department of Endocrinology, Endocrinology Research Center, Xiangya Hospital of Central South University, Changsha, Hunan 410008, China
| | - Jing-Yi Sun
- Department of Geriatrics, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
| | - Ya Liu
- Department of Endocrinology, Endocrinology Research Center, Xiangya Hospital of Central South University, Changsha, Hunan 410008, China
| | - Zhe-Yu Liu
- Department of Endocrinology, Endocrinology Research Center, Xiangya Hospital of Central South University, Changsha, Hunan 410008, China
| | - Yan Huang
- Department of Endocrinology, Endocrinology Research Center, Xiangya Hospital of Central South University, Changsha, Hunan 410008, China
| | - Yuan Xiao
- Department of Endocrinology, Endocrinology Research Center, Xiangya Hospital of Central South University, Changsha, Hunan 410008, China
| | - Tian Su
- Department of Endocrinology, Endocrinology Research Center, Xiangya Hospital of Central South University, Changsha, Hunan 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital of Central South University, Changsha, Hunan 410008, China
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16
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Höpfinger A, Schmid A, Schweitzer L, Patz M, Weber A, Schäffler A, Karrasch T. Regulation of Cathelicidin Antimicrobial Peptide (CAMP) Gene Expression by TNFα and cfDNA in Adipocytes. Int J Mol Sci 2023; 24:15820. [PMID: 37958808 PMCID: PMC10649744 DOI: 10.3390/ijms242115820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 10/16/2023] [Accepted: 10/21/2023] [Indexed: 11/15/2023] Open
Abstract
Understanding the complex interactions between metabolism and the immune system ("metaflammation") is crucial for the identification of key immunomodulatory factors as potential therapeutic targets in obesity and in cardiovascular diseases. Cathelicidin antimicrobial peptide (CAMP) is an important factor of innate immunity and is expressed in adipocytes. CAMP, therefore, might play a role as an adipokine in metaflammation and adipose inflammation. TNFα, cell-free nucleic acids (cfDNA), and toll-like receptor (TLR) 9 are components of the innate immune system and are functionally active in adipose tissue. The aim of the present study was to investigate the impact of TNFα and cfDNA on CAMP expression in adipocytes. Since cfDNA acts as a physiological TLR9 agonist, we additionally investigated TLR9-mediated CAMP regulation in adipocytes and adipose tissue. CAMP gene expression in murine 3T3-L1 and human SGBS adipocytes and in murine and human adipose tissues was quantified by real-time PCR. Adipocyte inflammation was induced in vitro by TNFα and cfDNA stimulation. Serum CAMP concentrations in TLR9 knockout (KO) and in wildtype mice were quantified by ELISA. In primary adipocytes of wildtype and TLR9 KO mice, CAMP gene expression was quantified by real-time PCR. CAMP gene expression was considerably increased in 3T3-L1 and SGBS adipocytes during differentiation. TNFα significantly induced CAMP gene expression in mature adipocytes, which was effectively antagonized by inhibition of PI3K signaling. Cell-free nucleic acids (cfDNA) significantly impaired CAMP gene expression, whereas synthetic agonistic and antagonistic TLR9 ligands had no effect. CAMP and TLR9 gene expression were correlated positively in murine and human subcutaneous but not in intra-abdominal/visceral adipose tissues. Male TLR9 knockout mice exhibited lower systemic CAMP concentrations than wildtype mice. CAMP gene expression levels in primary adipocytes did not significantly differ between wildtype and TLR9 KO mice. These findings suggest a regulatory role of inflammatory mediators, such as TNFα and cfDNA, in adipocytic CAMP expression as a novel putative molecular mechanism in adipose tissue innate immunity.
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Affiliation(s)
- Alexandra Höpfinger
- Department of Internal Medicine III, University of Giessen, 35392 Giessen, Germany (A.S.); (T.K.)
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17
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Abstract
Nutrient intake is obligatory for animal growth and development, but nutrients alone are not sufficient. Indeed, insulin and homologous hormones are required for normal growth even in the presence of nutrients. These hormones communicate nutrient status between organs, allowing animals to coordinate growth and metabolism with nutrient supply. Insulin and related hormones, such as insulin-like growth factors and insulin-like peptides, play important roles in development and metabolism, with defects in insulin production and signaling leading to hyperglycemia and diabetes. Here, we describe the insulin hormone family and the signal transduction pathways activated by these hormones. We highlight the roles of insulin signaling in coordinating maternal and fetal metabolism and growth during pregnancy, and we describe how secretion of insulin is regulated at different life stages. Additionally, we discuss the roles of insulin signaling in cell growth, stem cell proliferation and cell differentiation. We provide examples of the role of insulin in development across multiple model organisms: Caenorhabditis elegans, Drosophila, zebrafish, mouse and human.
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Affiliation(s)
- Miyuki Suzawa
- Department of Pharmacology, University of Virginia, Charlottesville, VA 22908, USA
| | - Michelle L. Bland
- Department of Pharmacology, University of Virginia, Charlottesville, VA 22908, USA
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18
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Soumya SJ, Abhinand CS, Nair AS, Sonu PS, Mohanadasan Nair G, Gangaprasad AN, Nair AS, Nair AJ. Chrysin inhibits adipogenesis by modulating PPARγ: in silico and in vitro studies. J Biomol Struct Dyn 2023:1-10. [PMID: 37794770 DOI: 10.1080/07391102.2023.2262596] [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: 07/04/2023] [Accepted: 09/17/2023] [Indexed: 10/06/2023]
Abstract
Adipose tissue is the major storage site of lipids and plays a vital role in energy homeostasis. Adipogenesis is a well-regulated process wherein preadipocytes differentiate into adipocytes. It requires the sequential activation of numerous transcription factors, including peroxisome proliferator activated receptor-γ (PPAR-γ). Phytochemicals have been reported to regulate adipogenesis and flavonoids represent the most researched groups of phytochemicals with regard to their effect on adipogenesis. Chrysin is a naturally occurring flavone and is reported to have anti-inflammatory effects in obese conditions. The present study was aimed to examine the effect of chrysin on adipogenesis. In silico Molecular docking, dynamic simulation studies and in vitro cell-based assays showed that chrysin inhibited adipogenesis by modulating key adipogenic transcription factor PPARγ. Enhanced adipogenesis leads to obesity and targeting adipogenesis is potential in regulating adipose tissue development. So, these investigations may provide important information for designing therapeutic interventions to control adiposity.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Sasikumar Jalajakumari Soumya
- Inter University Centre for Genomics and Gene Technology (IUCGGT), Department of Biotechnology, University of Kerala, Thiruvananthapuram, Kerala, India
- Department of Computational Biology and Bioinformatics, University of Kerala, Thiruvananthapuram, Kerala, India
| | - Chandran Sheela Abhinand
- Department of Computational Biology and Bioinformatics, University of Kerala, Thiruvananthapuram, Kerala, India
- Center for Systems Biology and Molecular Medicine, Yenepoya Research Centre, Yenepoya (Deemed to be University), Mangalore, India
| | - Arya Saseendran Nair
- Inter University Centre for Genomics and Gene Technology (IUCGGT), Department of Biotechnology, University of Kerala, Thiruvananthapuram, Kerala, India
| | - Priji Sathyan Sonu
- Inter University Centre for Genomics and Gene Technology (IUCGGT), Department of Biotechnology, University of Kerala, Thiruvananthapuram, Kerala, India
| | - Govindapillai Mohanadasan Nair
- Inter University Centre for Genomics and Gene Technology (IUCGGT), Department of Biotechnology, University of Kerala, Thiruvananthapuram, Kerala, India
| | - Appukuttan Nair Gangaprasad
- Inter University Centre for Genomics and Gene Technology (IUCGGT), Department of Biotechnology, University of Kerala, Thiruvananthapuram, Kerala, India
| | - Achuthsankar S Nair
- Department of Computational Biology and Bioinformatics, University of Kerala, Thiruvananthapuram, Kerala, India
| | - Ananthakrishnan Jayakumaran Nair
- Inter University Centre for Genomics and Gene Technology (IUCGGT), Department of Biotechnology, University of Kerala, Thiruvananthapuram, Kerala, India
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19
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Nakano T, Sasaki Y, Norikura T, Hosokawa Y, Kasano M, Matsui‐Yuasa I, Huang X, Kobayashi Y, Kojima‐Yuasa A. The suppression of the differentiation of adipocytes with Mallotus furetianus is regulated through the posttranslational modifications of C/EBPβ. Food Sci Nutr 2023; 11:6151-6163. [PMID: 37831750 PMCID: PMC10563708 DOI: 10.1002/fsn3.3551] [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: 04/05/2023] [Revised: 06/19/2023] [Accepted: 06/20/2023] [Indexed: 10/15/2023] Open
Abstract
Obesity is a major risk factor for various chronic diseases, especially lifestyle-related diseases. Therefore, finding a protective substance against obesity and elucidating its molecular mechanism is one of the most important problems for improving human health. In this study, we investigated the antiobesity effect of Mallotus furetianus extract (MFE). The aim of the study was to examine the in vivo and in vitro effects of MFE on lipid synthesis. We examined the effect using an in vivo experimental system with obesity model mice and an in vitro experimental system with 3T3-L1 preadipocytes. We found that the treatment of MFE significantly suppressed the increase in body weight and adipose tissue weight and morphological changes in the liver and adipose tissue of the obesity model mice. In the in vitro experimental system, we revealed that MFE treatment suppressed the expression of transcription factors such as C/EBPα, C/EBPβ, and PPARγ, which are involved in the early differentiation of 3T3-L1 preadipocytes. As a result, the ability to synthesize triacylglycerol was suppressed. An interesting finding in this study was the clarification that MFE decreases the expression of C/EBPβ through post-translation modifications (PTMs), followed by the transcriptional suppression of PPAR𝛾 and C/EBP𝛼.
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Affiliation(s)
- Touko Nakano
- Department of Food and Human Health SciencesGraduate School of Human Life ScienceOsaka City UniversityOsakaJapan
| | - Yutaro Sasaki
- Department of Food and Human Health SciencesGraduate School of Human Life ScienceOsaka City UniversityOsakaJapan
| | - Toshio Norikura
- Department of NutritionAomori University of Health and WelfareAomoriJapan
| | - Yusuke Hosokawa
- Department of Food and Human Health SciencesGraduate School of Human Life ScienceOsaka City UniversityOsakaJapan
| | - Mayu Kasano
- Department of Food and Human Health SciencesGraduate School of Human Life ScienceOsaka City UniversityOsakaJapan
| | - Isao Matsui‐Yuasa
- Department of Food and Human Health SciencesGraduate School of Human Life ScienceOsaka City UniversityOsakaJapan
- Department of NutritionGraduate School of Human Life and EcologyOsaka Metropolitan UniversityOsakaJapan
| | - Xuedan Huang
- Department of PharmacognosySchool of PharmacyKitasato UniversityTokyoJapan
| | | | - Akiko Kojima‐Yuasa
- Department of Food and Human Health SciencesGraduate School of Human Life ScienceOsaka City UniversityOsakaJapan
- Department of NutritionGraduate School of Human Life and EcologyOsaka Metropolitan UniversityOsakaJapan
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20
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Nartey MNN, Shimizu H, Sugiyama H, Higa M, Syeda PK, Nishimura K, Jisaka M, Yokota K. Eicosapentaenoic Acid Induces the Inhibition of Adipogenesis by Reducing the Effect of PPARγ Activator and Mediating PKA Activation and Increased COX-2 Expression in 3T3-L1 Cells at the Differentiation Stage. Life (Basel) 2023; 13:1704. [PMID: 37629561 PMCID: PMC10456008 DOI: 10.3390/life13081704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 08/04/2023] [Accepted: 08/04/2023] [Indexed: 08/27/2023] Open
Abstract
Obesity has received increasing attention in recent years because it is a factor in the development of non-communicable diseases. The current study aimed to analyze how representative fatty acids (FAs) such as palmitic acid, stearic acid, oleic acid, α-linolenic acid (ALA), and eicosapentaenoic acid (EPA) affected adipogenesis when/if introduced at the differentiation stage of 3T3-L1 cell culture. These FAs are assumed to be potentially relevant to the progression or prevention of obesity. EPA added during the differentiation stage reduced intracellular triacylglycerol (TAG) accumulation, as well as the expression of the established adipocyte-specific marker genes, during the maturation stage. However, no other FAs inhibited intracellular TAG accumulation. Coexistence of Δ12-prostaglandin J2, a peroxisome proliferator-activated receptor γ activator, with EPA during the differentiation stage partially attenuated the inhibitory effect of EPA on intracellular TAG accumulation. EPA increased cyclooxygenase-2 (COX-2) expression and protein kinase A (PKA) activity at the differentiation stage, which could explain the inhibitory actions of EPA. Taken together, exposure of preadipocytes to EPA only during the differentiation stage may be sufficient to finally reduce the mass of white adipose tissue through increasing COX-2 expression and PKA activity.
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Affiliation(s)
- Michael N. N. Nartey
- Council for Scientific and Industrial Research-Animal Research Institute, Achimota, Accra P.O. Box AH20, Ghana;
| | - Hidehisa Shimizu
- Estuary Research Center, Shimane University, 1060 Nishikawatsu-cho, Matsue 690-8504, Shimane, Japan;
- Graduate School of Natural Science and Technology, Shimane University, 1060 Nishikawatsu-cho, Matsue 690-8504, Shimane, Japan; (H.S.); (M.H.); (K.N.); (K.Y.)
- Faculty of Life and Environmental Science, Shimane University, 1060 Nishikawatsu-cho, Matsue 690-8504, Shimane, Japan;
- Interdisciplinary Center for Science Research, Shimane University, 1060 Nishikawatsu-cho, Matsue 690-8504, Shimane, Japan
- The United Graduate School of Agricultural Sciences, Tottori University, 4-101 Koyama-Minami, Tottori 680-8553, Tottori, Japan
- Institute of Agricultural and Life Sciences, Academic Assembly, Shimane University, 1060 Nishikawatsu-cho, Matsue 690-8504, Shimane, Japan
| | - Hikaru Sugiyama
- Graduate School of Natural Science and Technology, Shimane University, 1060 Nishikawatsu-cho, Matsue 690-8504, Shimane, Japan; (H.S.); (M.H.); (K.N.); (K.Y.)
| | - Manami Higa
- Graduate School of Natural Science and Technology, Shimane University, 1060 Nishikawatsu-cho, Matsue 690-8504, Shimane, Japan; (H.S.); (M.H.); (K.N.); (K.Y.)
| | - Pinky Karim Syeda
- Faculty of Life and Environmental Science, Shimane University, 1060 Nishikawatsu-cho, Matsue 690-8504, Shimane, Japan;
| | - Kohji Nishimura
- Graduate School of Natural Science and Technology, Shimane University, 1060 Nishikawatsu-cho, Matsue 690-8504, Shimane, Japan; (H.S.); (M.H.); (K.N.); (K.Y.)
- Faculty of Life and Environmental Science, Shimane University, 1060 Nishikawatsu-cho, Matsue 690-8504, Shimane, Japan;
- Interdisciplinary Center for Science Research, Shimane University, 1060 Nishikawatsu-cho, Matsue 690-8504, Shimane, Japan
- The United Graduate School of Agricultural Sciences, Tottori University, 4-101 Koyama-Minami, Tottori 680-8553, Tottori, Japan
- Institute of Agricultural and Life Sciences, Academic Assembly, Shimane University, 1060 Nishikawatsu-cho, Matsue 690-8504, Shimane, Japan
| | - Mitsuo Jisaka
- Graduate School of Natural Science and Technology, Shimane University, 1060 Nishikawatsu-cho, Matsue 690-8504, Shimane, Japan; (H.S.); (M.H.); (K.N.); (K.Y.)
- Faculty of Life and Environmental Science, Shimane University, 1060 Nishikawatsu-cho, Matsue 690-8504, Shimane, Japan;
- The United Graduate School of Agricultural Sciences, Tottori University, 4-101 Koyama-Minami, Tottori 680-8553, Tottori, Japan
- Institute of Agricultural and Life Sciences, Academic Assembly, Shimane University, 1060 Nishikawatsu-cho, Matsue 690-8504, Shimane, Japan
| | - Kazushige Yokota
- Graduate School of Natural Science and Technology, Shimane University, 1060 Nishikawatsu-cho, Matsue 690-8504, Shimane, Japan; (H.S.); (M.H.); (K.N.); (K.Y.)
- Faculty of Life and Environmental Science, Shimane University, 1060 Nishikawatsu-cho, Matsue 690-8504, Shimane, Japan;
- The United Graduate School of Agricultural Sciences, Tottori University, 4-101 Koyama-Minami, Tottori 680-8553, Tottori, Japan
- Institute of Agricultural and Life Sciences, Academic Assembly, Shimane University, 1060 Nishikawatsu-cho, Matsue 690-8504, Shimane, Japan
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21
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Han YH, Kee JY. Extract of Isatidis Radix Inhibits Lipid Accumulation in In Vitro and In Vivo by Regulating Oxidative Stress. Antioxidants (Basel) 2023; 12:1426. [PMID: 37507964 PMCID: PMC10376543 DOI: 10.3390/antiox12071426] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2023] [Revised: 07/07/2023] [Accepted: 07/12/2023] [Indexed: 07/30/2023] Open
Abstract
Isatidis Radix (IR), the root of Isatis tinctoria L. belonging to Brassicaceae, has been traditionally used as a fever reducer. Although some pharmacological effects, such as anti-diabetes, anti-virus, and anti-inflammatory, have been reported, there is no study on the anti-obesity effect of IR. This study used 3T3-L1 cells, human mesenchymal adipose stem cells (hAMSCs), and a high-fat diet (HFD)-induced obese mouse model to confirm the anti-adipogenic effect of IR. Intracellular lipid accumulation in 3T3-L1 cells and hAMSCs was decreased by IR treatment.IR extract especially suppressed reactive oxygen species (ROS) production through a cluster of differentiation 36 (CD36)-AMP-activated protein kinase (AMPK) pathway. Consequently, the expressions of peroxisome proliferator-activated receptor gamma (PPARγ), CCAAT-enhancer-binding proteins alpha (C/EBPα), and fatty acid synthesis (FAS) were inhibited by IR extract. In addition, β-oxidation-related genes were also decreased by treatment of IR extract. IR inhibited weight gain through this cascade in the HFD-induced obese mouse model. IR significantly suppressed lipid accumulation in epididymal white adipose tissue (eWAT). Furthermore, the administration of IR extract decreased serum free fatty acid (FFA), total cholesterol (TC), and LDL cholesterol, suggesting that it could be a potential drug for obesity by inhibiting lipid accumulation.
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Affiliation(s)
- Yo-Han Han
- Department of Pharmacology, College of Korean Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Ji-Ye Kee
- Department of Oriental Pharmacy, College of Pharmacy, Wonkwang-Oriental Medicines Research Institute, Wonkwang University, Iksan 54538, Republic of Korea
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22
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Oh J, Riek AE, Bauerle KT, Dusso A, McNerney KP, Barve RA, Darwech I, Sprague JE, Moynihan C, Zhang RM, Kutz G, Wang T, Xing X, Li D, Mrad M, Wigge NM, Castelblanco E, Collin A, Bambouskova M, Head RD, Sands MS, Bernal-Mizrachi C. Embryonic vitamin D deficiency programs hematopoietic stem cells to induce type 2 diabetes. Nat Commun 2023; 14:3278. [PMID: 37311757 PMCID: PMC10264405 DOI: 10.1038/s41467-023-38849-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2021] [Accepted: 05/19/2023] [Indexed: 06/15/2023] Open
Abstract
Environmental factors may alter the fetal genome to cause metabolic diseases. It is unknown whether embryonic immune cell programming impacts the risk of type 2 diabetes in later life. We demonstrate that transplantation of fetal hematopoietic stem cells (HSCs) made vitamin D deficient in utero induce diabetes in vitamin D-sufficient mice. Vitamin D deficiency epigenetically suppresses Jarid2 expression and activates the Mef2/PGC1a pathway in HSCs, which persists in recipient bone marrow, resulting in adipose macrophage infiltration. These macrophages secrete miR106-5p, which promotes adipose insulin resistance by repressing PIK3 catalytic and regulatory subunits and down-regulating AKT signaling. Vitamin D-deficient monocytes from human cord blood have comparable Jarid2/Mef2/PGC1a expression changes and secrete miR-106b-5p, causing adipocyte insulin resistance. These findings suggest that vitamin D deficiency during development has epigenetic consequences impacting the systemic metabolic milieu.
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Affiliation(s)
- Jisu Oh
- Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA
| | - Amy E Riek
- Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA
| | - Kevin T Bauerle
- Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA
- Department of Medicine, VA Medical Center, St. Louis, MO, USA
| | - Adriana Dusso
- Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA
| | - Kyle P McNerney
- Department of Pediatrics, Washington University School of Medicine, St. Louis, MO, USA
| | - Ruteja A Barve
- Department of Genetics, Washington University School of Medicine, St. Louis, MO, USA
| | - Isra Darwech
- Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA
| | | | - Clare Moynihan
- Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA
| | - Rong M Zhang
- Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA
| | - Greta Kutz
- Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA
| | - Ting Wang
- Department of Genetics, Washington University School of Medicine, St. Louis, MO, USA
| | - Xiaoyun Xing
- Department of Genetics, Washington University School of Medicine, St. Louis, MO, USA
| | - Daofeng Li
- Department of Genetics, Washington University School of Medicine, St. Louis, MO, USA
| | - Marguerite Mrad
- Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA
| | - Nicholas M Wigge
- Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA
| | | | - Alejandro Collin
- Instituto de Investigaciones en Ciencias de la Salud (INICSA), CONICET, Universidad Nacional de Córdoba, Córdoba, Argentina
| | - Monika Bambouskova
- Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA
| | - Richard D Head
- Department of Genetics, Washington University School of Medicine, St. Louis, MO, USA
| | - Mark S Sands
- Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA
- Department of Cell Biology and Physiology, Washington University School of Medicine, St. Louis, MO, USA
| | - Carlos Bernal-Mizrachi
- Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA.
- Department of Medicine, VA Medical Center, St. Louis, MO, USA.
- Department of Cell Biology and Physiology, Washington University School of Medicine, St. Louis, MO, USA.
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23
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Giordano D, Scafuri B, De Masi L, Capasso L, Maresca V, Altucci L, Nebbioso A, Facchiano A, Bontempo P. Sirtuin Inhibitor Cambinol Induces Cell Differentiation and Differently Interferes with SIRT1 and 2 at the Substrate Binding Site. Biomedicines 2023; 11:1624. [PMID: 37371719 DOI: 10.3390/biomedicines11061624] [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: 03/23/2023] [Revised: 05/28/2023] [Accepted: 05/30/2023] [Indexed: 06/29/2023] Open
Abstract
Epigenetic mechanisms finely regulate gene expression and represent potential therapeutic targets. Cambinol is a synthetic heterocyclic compound that inhibits class III histone deacetylases known as sirtuins (SIRTs). The acetylating action that results could be crucial in modulating cellular functions via epigenetic regulations. The main aim of this research was to investigate the effects of cambinol, and its underlying mechanisms, on cell differentiation by combining wet experiments with bioinformatics analyses and molecular docking simulations. Our in vitro study evidenced the ability of cambinol to induce the differentiation in MCF-7, NB4, and 3T3-L1 cell lines. Interestingly, focusing on the latter that accumulated cytoplasmic lipid droplets, the first promising results related to the action mechanisms of cambinol have shown the induction of cell cycle-related proteins (such as p16 and p27) and modulation of the expression of Rb protein and nuclear receptors related to cell differentiation. Moreover, we explored the inhibitory mechanism of cambinol on human SIRT1 and 2 performing in silico molecular simulations by protein-ligand docking. Cambinol, unlike from other sirtuin inhibitors, is able to better interact with the substrate binding site of SIRT1 than with the inhibition site. Additionally, for SIRT2, cambinol partially interacts with the substrate binding site, although the inhibition site is preferred. Overall, our findings suggest that cambinol might contribute to the development of an alternative to the existing epigenetic therapies that modulate SIRTs.
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Affiliation(s)
- Deborah Giordano
- National Research Council (CNR), Institute of Food Science (ISA), Via Roma 64, 83100 Avellino, Italy
| | - Bernardina Scafuri
- Department of Chemistry and Biology "A. Zambelli", University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, Italy
| | - Luigi De Masi
- National Research Council (CNR), Institute of Biosciences and Bioresources (IBBR), Via Università 133, 80055 Portici, Italy
| | - Lucia Capasso
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Via L. De Crecchio 7, 80138 Naples, Italy
| | - Viviana Maresca
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Via L. De Crecchio 7, 80138 Naples, Italy
| | - Lucia Altucci
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Via L. De Crecchio 7, 80138 Naples, Italy
| | - Angela Nebbioso
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Via L. De Crecchio 7, 80138 Naples, Italy
| | - Angelo Facchiano
- National Research Council (CNR), Institute of Food Science (ISA), Via Roma 64, 83100 Avellino, Italy
| | - Paola Bontempo
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Via L. De Crecchio 7, 80138 Naples, Italy
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Wang H, Li Y, Dai Y, Ma L, Di D, Liu J. Screening, structural characterization and anti-adipogenesis effect of a water-soluble polysaccharide from Lycium barbarum L. by an activity-oriented approach. FOOD BIOSCI 2023. [DOI: 10.1016/j.fbio.2023.102502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
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Nartey MNN, Jisaka M, Syeda PK, Nishimura K, Shimizu H, Yokota K. Prostaglandin D 2 Added during the Differentiation of 3T3-L1 Cells Suppresses Adipogenesis via Dysfunction of D-Prostanoid Receptor P1 and P2. Life (Basel) 2023; 13:life13020370. [PMID: 36836727 PMCID: PMC9963520 DOI: 10.3390/life13020370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2022] [Revised: 01/20/2023] [Accepted: 01/27/2023] [Indexed: 01/31/2023] Open
Abstract
We previously reported that the addition of prostaglandin, (PG)D2, and its chemically stable analog, 11-deoxy-11-methylene-PGD2 (11d-11m-PGD2), during the maturation phase of 3T3-L1 cells promotes adipogenesis. In the present study, we aimed to elucidate the effects of the addition of PGD2 or 11d-11m-PGD2 to 3T3-L1 cells during the differentiation phase on adipogenesis. We found that both PGD2 and 11d-11m-PGD2 suppressed adipogenesis through the downregulation of peroxisome proliferator-activated receptor gamma (PPARγ) expression. However, the latter suppressed adipogenesis more potently than PGD2, most likely because of its higher resistance to spontaneous transformation into PGJ2 derivatives. In addition, this anti-adipogenic effect was attenuated by the coexistence of an IP receptor agonist, suggesting that the effect depends on the intensity of the signaling from the IP receptor. The D-prostanoid receptors 1 (DP1) and 2 (DP2, also known as a chemoattractant receptor-homologous molecule expressed on Th2 cells) are receptors for PGD2. The inhibitory effects of PGD2 and 11d-11m-PGD2 on adipogenesis were slightly attenuated by a DP2 agonist. Furthermore, the addition of PGD2 and 11d-11m-PGD2 during the differentiation phase reduced the DP1 and DP2 expression during the maturation phase. Overall, these results indicated that the addition of PGD2 or 11d-11m-PGD2 during the differentiation phase suppresses adipogenesis via the dysfunction of DP1 and DP2. Therefore, unidentified receptor(s) for both molecules may be involved in the suppression of adipogenesis.
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Affiliation(s)
- Michael N. N. Nartey
- The United Graduate School of Agricultural Sciences, Tottori University, 4-101 Koyama-Minami, Tottori 680-8553, Japan
- Council for Scientific and Industrial Research-Animal Research Institute, Achimota, Accra P.O. Box AH20, Ghana
| | - Mitsuo Jisaka
- The United Graduate School of Agricultural Sciences, Tottori University, 4-101 Koyama-Minami, Tottori 680-8553, Japan
- Department of Life Science and Biotechnology, Shimane University, 1060 Nishikawatsu-Cho, Matsue 690-8504, Japan
- Institute of Agricultural and Life Sciences, Academic Assembly, Shimane University, 1060 Nishikawatsu-Cho, Matsue 690-8504, Japan
- Correspondence:
| | - Pinky Karim Syeda
- Department of Life Science and Biotechnology, Shimane University, 1060 Nishikawatsu-Cho, Matsue 690-8504, Japan
| | - Kohji Nishimura
- The United Graduate School of Agricultural Sciences, Tottori University, 4-101 Koyama-Minami, Tottori 680-8553, Japan
- Department of Life Science and Biotechnology, Shimane University, 1060 Nishikawatsu-Cho, Matsue 690-8504, Japan
- Institute of Agricultural and Life Sciences, Academic Assembly, Shimane University, 1060 Nishikawatsu-Cho, Matsue 690-8504, Japan
- Interdisciplinary Center for Science Research, Shimane University, 1060 Nishikawatsu-Cho, Matsue 690-8504, Japan
| | - Hidehisa Shimizu
- The United Graduate School of Agricultural Sciences, Tottori University, 4-101 Koyama-Minami, Tottori 680-8553, Japan
- Department of Life Science and Biotechnology, Shimane University, 1060 Nishikawatsu-Cho, Matsue 690-8504, Japan
- Institute of Agricultural and Life Sciences, Academic Assembly, Shimane University, 1060 Nishikawatsu-Cho, Matsue 690-8504, Japan
- Interdisciplinary Center for Science Research, Shimane University, 1060 Nishikawatsu-Cho, Matsue 690-8504, Japan
| | - Kazushige Yokota
- The United Graduate School of Agricultural Sciences, Tottori University, 4-101 Koyama-Minami, Tottori 680-8553, Japan
- Department of Life Science and Biotechnology, Shimane University, 1060 Nishikawatsu-Cho, Matsue 690-8504, Japan
- Institute of Agricultural and Life Sciences, Academic Assembly, Shimane University, 1060 Nishikawatsu-Cho, Matsue 690-8504, Japan
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26
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Nartey MNN, Jisaka M, Syeda PK, Nishimura K, Shimizu H, Yokota K. Arachidonic Acid Added during the Differentiation Phase of 3T3-L1 Cells Exerts Anti-Adipogenic Effect by Reducing the Effects of Pro-Adipogenic Prostaglandins. Life (Basel) 2023; 13:life13020367. [PMID: 36836723 PMCID: PMC9962328 DOI: 10.3390/life13020367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 01/22/2023] [Accepted: 01/22/2023] [Indexed: 01/31/2023] Open
Abstract
A linoleic acid (LA) metabolite arachidonic acid (AA) added to 3T3-L1 cells is reported to suppress adipogenesis. The purpose of the present study aimed to clarify the effects of AA added during the differentiation phase, including adipogenesis, the types of prostaglandins (PG)s produced, and the crosstalk between AA and the PGs produced. Adipogenesis was inhibited by AA added, while LA did not. When AA was added, increased PGE2 and PGF2α production, unchanged Δ12-PGJ2 production, and reduced PGI2 production were observed. Since the decreased PGI2 production was reflected in decreased CCAAT/enhancer-binding protein-β (C/EBPβ) and C/EBPδ expression, we expected that the coexistence of PGI2 with AA would suppress the anti-adipogenic effects of AA. However, the coexistence of PGI2 with AA did not attenuate the anti-adipogenic effects of AA. In addition, the results were similar when Δ12-PGJ2 coexisted with AA. Taken together, these results indicated that the metabolism of ingested LA to AA is necessary to inhibit adipogenesis and that exposure of AA to adipocytes during only the differentiation phase is sufficient. As further mechanisms for suppressing adipogenesis, AA was found not only to increase PGE2 and PGF2α and decrease PGI2 production but also to abrogate the pro-adipogenic effects of PGI2 and Δ12-PGJ2.
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Affiliation(s)
- Michael N. N. Nartey
- The United Graduate School of Agricultural Sciences, Tottori University, 4-101 Koyama-Minami, Tottori 680-8553, Japan
- Council for Scientific and Industrial Research-Animal Research Institute, Achimota, Accra P.O. Box AH20, Ghana
| | - Mitsuo Jisaka
- The United Graduate School of Agricultural Sciences, Tottori University, 4-101 Koyama-Minami, Tottori 680-8553, Japan
- Department of Life Science and Biotechnology, Shimane University, 1060 Nishikawatsu-Cho, Shimane, Matsue 690-8504, Japan
- Institute of Agricultural and Life Sciences, Academic Assembly, Shimane University, 1060 Nishikawatsu-Cho, Shimane, Matsue 690-8504, Japan
- Correspondence:
| | - Pinky Karim Syeda
- Department of Life Science and Biotechnology, Shimane University, 1060 Nishikawatsu-Cho, Shimane, Matsue 690-8504, Japan
| | - Kohji Nishimura
- The United Graduate School of Agricultural Sciences, Tottori University, 4-101 Koyama-Minami, Tottori 680-8553, Japan
- Department of Life Science and Biotechnology, Shimane University, 1060 Nishikawatsu-Cho, Shimane, Matsue 690-8504, Japan
- Institute of Agricultural and Life Sciences, Academic Assembly, Shimane University, 1060 Nishikawatsu-Cho, Shimane, Matsue 690-8504, Japan
- Interdisciplinary Center for Science Research, Shimane University, 1060 Nishikawatsu-Cho, Shimane, Matsue 690-8504, Japan
| | - Hidehisa Shimizu
- The United Graduate School of Agricultural Sciences, Tottori University, 4-101 Koyama-Minami, Tottori 680-8553, Japan
- Department of Life Science and Biotechnology, Shimane University, 1060 Nishikawatsu-Cho, Shimane, Matsue 690-8504, Japan
- Institute of Agricultural and Life Sciences, Academic Assembly, Shimane University, 1060 Nishikawatsu-Cho, Shimane, Matsue 690-8504, Japan
- Interdisciplinary Center for Science Research, Shimane University, 1060 Nishikawatsu-Cho, Shimane, Matsue 690-8504, Japan
| | - Kazushige Yokota
- The United Graduate School of Agricultural Sciences, Tottori University, 4-101 Koyama-Minami, Tottori 680-8553, Japan
- Department of Life Science and Biotechnology, Shimane University, 1060 Nishikawatsu-Cho, Shimane, Matsue 690-8504, Japan
- Institute of Agricultural and Life Sciences, Academic Assembly, Shimane University, 1060 Nishikawatsu-Cho, Shimane, Matsue 690-8504, Japan
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27
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Lyons H, Veettil RT, Pradhan P, Fornero C, De La Cruz N, Ito K, Eppert M, Roeder RG, Sabari BR. Functional partitioning of transcriptional regulators by patterned charge blocks. Cell 2023; 186:327-345.e28. [PMID: 36603581 PMCID: PMC9910284 DOI: 10.1016/j.cell.2022.12.013] [Citation(s) in RCA: 82] [Impact Index Per Article: 82.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 10/15/2022] [Accepted: 12/07/2022] [Indexed: 01/05/2023]
Abstract
Components of transcriptional machinery are selectively partitioned into specific condensates, often mediated by protein disorder, yet we know little about how this specificity is achieved. Here, we show that condensates composed of the intrinsically disordered region (IDR) of MED1 selectively partition RNA polymerase II together with its positive allosteric regulators while excluding negative regulators. This selective compartmentalization is sufficient to activate transcription and is required for gene activation during a cell-state transition. The IDRs of partitioned proteins are necessary and sufficient for selective compartmentalization and require alternating blocks of charged amino acids. Disrupting this charge pattern prevents partitioning, whereas adding the pattern to proteins promotes partitioning with functional consequences for gene activation. IDRs with similar patterned charge blocks show similar partitioning and function. These findings demonstrate that disorder-mediated interactions can selectively compartmentalize specific functionally related proteins from a complex mixture of biomolecules, leading to regulation of a biochemical pathway.
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Affiliation(s)
- Heankel Lyons
- Laboratory of Nuclear Organization, Cecil H. and Ida Green Center for Reproductive Biology Sciences, Division of Basic Research, Department of Obstetrics and Gynecology, Department of Molecular Biology, Hamon Center for Regenerative Science and Medicine, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Reshma T Veettil
- Laboratory of Nuclear Organization, Cecil H. and Ida Green Center for Reproductive Biology Sciences, Division of Basic Research, Department of Obstetrics and Gynecology, Department of Molecular Biology, Hamon Center for Regenerative Science and Medicine, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Prashant Pradhan
- Laboratory of Nuclear Organization, Cecil H. and Ida Green Center for Reproductive Biology Sciences, Division of Basic Research, Department of Obstetrics and Gynecology, Department of Molecular Biology, Hamon Center for Regenerative Science and Medicine, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Christy Fornero
- Laboratory of Nuclear Organization, Cecil H. and Ida Green Center for Reproductive Biology Sciences, Division of Basic Research, Department of Obstetrics and Gynecology, Department of Molecular Biology, Hamon Center for Regenerative Science and Medicine, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Nancy De La Cruz
- Laboratory of Nuclear Organization, Cecil H. and Ida Green Center for Reproductive Biology Sciences, Division of Basic Research, Department of Obstetrics and Gynecology, Department of Molecular Biology, Hamon Center for Regenerative Science and Medicine, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Keiichi Ito
- Laboratory of Biochemistry and Molecular Biology, the Rockefeller University, New York, NY 10065, USA
| | - Mikayla Eppert
- Laboratory of Nuclear Organization, Cecil H. and Ida Green Center for Reproductive Biology Sciences, Division of Basic Research, Department of Obstetrics and Gynecology, Department of Molecular Biology, Hamon Center for Regenerative Science and Medicine, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Robert G Roeder
- Laboratory of Biochemistry and Molecular Biology, the Rockefeller University, New York, NY 10065, USA
| | - Benjamin R Sabari
- Laboratory of Nuclear Organization, Cecil H. and Ida Green Center for Reproductive Biology Sciences, Division of Basic Research, Department of Obstetrics and Gynecology, Department of Molecular Biology, Hamon Center for Regenerative Science and Medicine, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA.
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Vazquez-Sandoval A, Velez-delValle C, Hernández-Mosqueira C, Marsch-Moreno M, Ayala-Sumuano JT, Kuri-Harcuch W. FAM129B is a cooperative protein that regulates adipogenesis. Biochem Biophys Res Commun 2023; 638:66-75. [PMID: 36442234 DOI: 10.1016/j.bbrc.2022.11.042] [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: 10/28/2022] [Revised: 11/08/2022] [Accepted: 11/14/2022] [Indexed: 11/21/2022]
Abstract
FAM129B is one of Niban-like proteins described in neoplastic cells and implicated in melanoma cell invasion, but no reports have been published on FAM129B and cell differentiation. We show that FAM129B is early and transiently expressed and crucial for 3T3-F442A adipogenesis. Fam129b is expressed downstream of the early genes Cebpb, Klf4, Klf5 and Srebf1a, but upstream of Pparg2 since knockdown of Fam129b blocked Pparg2 expression and adipose differentiation. Glycogen synthase kinase 3 beta activity, a crucial kinase for adipogenesis, and the ERK1/2 are involved in FAM129B phosphorylation as part of the adipogenic program. Phosphorylated FAM129B is crucial for Pparg2 expression and the lipogenic gene expression downstream of Pparg2, and hence for adipogenesis. Fam129b knockdown reduced adipocyte cluster formation and size, regulating commitment and clonal amplification. In vivo, BAT, inguinal and epidydimal fat expressed Fam129b, suggesting a role in adipose tissue development. We conclude that FAM129B is a cooperative protein that regulates differentiation during the early stages of adipogenesis.
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Affiliation(s)
- Alfredo Vazquez-Sandoval
- Department of Cell Biology, Center of Research and Advanced Studies (CINVESTAV), IPN Avenida Instituto Politécnico Nacional 2508, Mexico City, CP 07360, Mexico
| | - Cristina Velez-delValle
- Department of Cell Biology, Center of Research and Advanced Studies (CINVESTAV), IPN Avenida Instituto Politécnico Nacional 2508, Mexico City, CP 07360, Mexico
| | - Claudia Hernández-Mosqueira
- Department of Cell Biology, Center of Research and Advanced Studies (CINVESTAV), IPN Avenida Instituto Politécnico Nacional 2508, Mexico City, CP 07360, Mexico
| | - Meytha Marsch-Moreno
- Department of Cell Biology, Center of Research and Advanced Studies (CINVESTAV), IPN Avenida Instituto Politécnico Nacional 2508, Mexico City, CP 07360, Mexico
| | - Jorge-Tonatiuh Ayala-Sumuano
- Department of Cell Biology, Center of Research and Advanced Studies (CINVESTAV), IPN Avenida Instituto Politécnico Nacional 2508, Mexico City, CP 07360, Mexico; Department of Biomedical Research, IDIX Biotech, Avenida de Los Portones 1151, Queretaro, CP 76100, Mexico
| | - Walid Kuri-Harcuch
- Department of Cell Biology, Center of Research and Advanced Studies (CINVESTAV), IPN Avenida Instituto Politécnico Nacional 2508, Mexico City, CP 07360, Mexico.
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Chu DT, Thi YVN, Chew NW. Histone modifications in fat metabolism and obesity. PROGRESS IN MOLECULAR BIOLOGY AND TRANSLATIONAL SCIENCE 2023; 197:135-152. [PMID: 37019590 DOI: 10.1016/bs.pmbts.2023.01.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
Abstract
The World Health Organization (WHO) has identified the obesity epidemic as one of the leading causes of overall morbidity and mortality. Obesity affects individual health, and quality of life and has negative long-term economic implications on society and the entire country. In recent years, studies on histone modifications in fat metabolism and obesity have received great attention. Processes such as methylation, histone modification, chromatin remodeling, and microRNA expression are mechanisms in epigenetic regulation. These processes play a particularly important role in cell development and differentiation through gene regulation. In this chapter, we discuss the types of histone modifications in adipose tissue under different conditions, the role of histone modifications in adipose tissue development, and the relationship between histone modifications and biosynthesis in the body. In addition, the chapter provides detailed information on histone modifications in obesity, the relationship between histone modifications and food consumption status, and the role of histone modifications in overweight and obesity.
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DeLuca JH, Reilly SM. Culture and Differentiation of Primary Preadipocytes from Mouse Subcutaneous White Adipose Tissue. Methods Mol Biol 2023; 2662:11-24. [PMID: 37076667 PMCID: PMC10583291 DOI: 10.1007/978-1-0716-3167-6_2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/21/2023]
Abstract
Adipocytes are terminally differentiated cells derived from fibroblastic preadipocyte precursors. Here, we describe a method for the isolation and proliferation of preadipocytes from murine subcutaneous white adipose tissue, followed by differentiation in culture to mature adipocytes; we refer to these cells as primary preadipocytes differentiated in vitro (PPDIVs). Compared to adipogenic cell lines, PPDIV metabolism and adipokine secretion more closely resemble in vivo adipocyte biology. While primary mature adipocytes have the greatest in vivo relevance, their fragility and buoyancy make them unsuitable for many cell culture-based methods. PPDIVs can also take advantage of transgenic and knockout mouse models to produce genetically modified adipocytes. Thus, PPDIVs are a valuable resource for studying adipocyte biology in cell culture.
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Affiliation(s)
- Julia H DeLuca
- Virginia Tech Carilion School of Medicine, Roanoke, VA, USA
| | - Shannon M Reilly
- Department of Medicine, Division of Endocrinology, Diabetes and Metabolism, Weill Center for Metabolic Health, Weill Cornell Medicine, New York, NY, USA.
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31
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Mitić R, Cantoni F, Börlin CS, Post MJ, Jackisch L. A simplified and defined serum-free medium for cultivating fat across species. iScience 2022; 26:105822. [PMID: 36636339 PMCID: PMC9830212 DOI: 10.1016/j.isci.2022.105822] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 11/15/2022] [Accepted: 12/13/2022] [Indexed: 12/23/2022] Open
Abstract
Cultivated meat is a promising technology with the potential to mitigate the ethical and environmental issues associated with traditional meat. Fat plays a key role in the meat flavor; therefore, development of suitable adipogenic protocols for livestock is essential. The traditional adipogenic cocktail containing IBMX, dexamethasone, insulin and rosiglitazone is not food-compatible. Here, we demonstrate that of the four inducers only insulin and rosiglitazone are necessary in both serum-free (DMAD) and serum-containing media, with DMAD outperforming FBS. Two glucocorticoid receptor activators, progesterone and hydrocortisone, found in DMAD and FBS, affect differentiation homogeneity, without playing an essential role in activating adipogenic genes. Importantly, this protocol leads to mature adipocytes in 3D culture. This was demonstrated in both media types and in four species: ruminant and monogastric. We therefore propose a simplified one-step adipogenic protocol which, given the replacement of rosiglitazone by a food-compatible PPARγ agonist, is suitable for making cultivated fat.
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Affiliation(s)
- Rada Mitić
- Mosa Meat B.V., Maastricht, Limburg 6229 PM, the Netherlands
- Department of Physiology, Maastricht University, Maastricht, Limburg 6211 LK, the Netherlands
| | | | | | - Mark J. Post
- Mosa Meat B.V., Maastricht, Limburg 6229 PM, the Netherlands
- Department of Physiology, Maastricht University, Maastricht, Limburg 6211 LK, the Netherlands
| | - Laura Jackisch
- Mosa Meat B.V., Maastricht, Limburg 6229 PM, the Netherlands
- Corresponding author
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32
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Cisplatin-induced changes in calcitonin gene-related peptide or TNF-α release in rat dorsal root ganglia in vitro model of neurotoxicity are not reverted by rosiglitazone. Neurotoxicology 2022; 93:211-221. [DOI: 10.1016/j.neuro.2022.10.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 09/24/2022] [Accepted: 10/05/2022] [Indexed: 11/05/2022]
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Zhang M, Guo Y, Su R, Corazzin M, Hou R, Xie J, Zhang Y, Zhao L, Su L, Jin Y. Transcriptome analysis reveals the molecular regulatory network of muscle development and meat quality in Sunit lamb supplemented with dietary probiotic. Meat Sci 2022; 194:108996. [PMID: 36195032 DOI: 10.1016/j.meatsci.2022.108996] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 09/13/2022] [Accepted: 09/23/2022] [Indexed: 11/27/2022]
Abstract
Supplementing animal feed with probiotic additives can promote muscle production and improve meat quality. The study aimed to explore the effects of dietary probiotics supplementation on the performance, meat quality and muscle transcriptome profile in Sunit lamb. Overall, feeding probiotics significantly increased the body length, LT area, pH24h and intramuscular fat (IMF) content, but decreased cooking loss and meat shear force compared to the control group (P < .05). A total of 651 differentially expressed genes (DEGs) were found in probiotic supplemented lambs. Pathway analysis revealed that DEGs were involved in multiple pathways related to muscle development and fat deposition, such as the ECM-receptor interactions, the MAPK signaling pathway and the FoxO signaling pathway. Therefore, dietary probiotic supplementation can improve muscle development and final meat quality in Sunit lambs by altering gene expression profiles associated with key pathways, providing unique insights into the molecular mechanisms by which dietary probiotics regulate muscle development in the lamb industry.
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Affiliation(s)
- Min Zhang
- College of Food Science and Engineering, Inner Mongolia Agriculture University, China
| | - Yueying Guo
- College of Food Science and Engineering, Inner Mongolia Agriculture University, China
| | - Rina Su
- Inner Mongolia Vocational College of Chemical Engineering, China
| | - Mirco Corazzin
- Department of Agricultural, Food, Environmental and Animal Sciences, University of Udine, Italy
| | - Ran Hou
- College of Food Science and Engineering, Inner Mongolia Agriculture University, China
| | - Jingyu Xie
- College of Food Science and Engineering, Inner Mongolia Agriculture University, China
| | - Yue Zhang
- College of Food Science and Engineering, Inner Mongolia Agriculture University, China
| | - Lihua Zhao
- College of Food Science and Engineering, Inner Mongolia Agriculture University, China
| | - Lin Su
- College of Food Science and Engineering, Inner Mongolia Agriculture University, China
| | - Ye Jin
- College of Food Science and Engineering, Inner Mongolia Agriculture University, China.
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Bahrami-Nejad Z, Zhang ZB, Tholen S, Sharma S, Rabiee A, Zhao ML, Kraemer FB, Teruel MN. Early enforcement of cell identity by a functional component of the terminally differentiated state. PLoS Biol 2022; 20:e3001900. [PMID: 36469503 PMCID: PMC9721491 DOI: 10.1371/journal.pbio.3001900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Accepted: 11/02/2022] [Indexed: 12/12/2022] Open
Abstract
How progenitor cells can attain a distinct differentiated cell identity is a challenging problem given the fluctuating signaling environment in which cells exist and that critical transcription factors are often not unique to a differentiation process. Here, we test the hypothesis that a unique differentiated cell identity can result from a core component of the differentiated state doubling up as a signaling protein that also drives differentiation. Using live single-cell imaging in the adipocyte differentiation system, we show that progenitor fat cells (preadipocytes) can only commit to terminally differentiate after up-regulating FABP4, a lipid buffer that is highly enriched in mature adipocytes. Upon induction of adipogenesis in mouse preadipocyte cells, we show that after a long delay, cells first abruptly start to engage a positive feedback between CEBPA and PPARG before then engaging, after a second delay, a positive feedback between FABP4 and PPARG. These sequential positive feedbacks both need to engage in order to drive PPARG levels past the threshold for irreversible differentiation. In the last step before commitment, PPARG transcriptionally increases FABP4 expression while fatty acid-loaded FABP4 increases PPARG activity. Together, our study suggests a control principle for robust cell identity whereby a core component of the differentiated state also promotes differentiation from its own progenitor state.
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Affiliation(s)
- Zahra Bahrami-Nejad
- Department of Chemical and Systems Biology, Stanford University, Stanford, California, United States of America
| | - Zhi-Bo Zhang
- Department of Chemical and Systems Biology, Stanford University, Stanford, California, United States of America
- Department of Biochemistry and the Drukier Institute for Children’s Health, Weill Cornell Medical College of Cornell University, New York, New York, United States of America
| | - Stefan Tholen
- Department of Chemical and Systems Biology, Stanford University, Stanford, California, United States of America
| | - Sanjeev Sharma
- Department of Biochemistry and the Drukier Institute for Children’s Health, Weill Cornell Medical College of Cornell University, New York, New York, United States of America
| | - Atefeh Rabiee
- Department of Chemical and Systems Biology, Stanford University, Stanford, California, United States of America
- Department of Physiology and Pharmacology, Thomas J. Long School of Pharmacy and Health Sciences, University of the Pacific, Stockton, California, United States of America
| | - Michael L. Zhao
- Department of Chemical and Systems Biology, Stanford University, Stanford, California, United States of America
| | - Fredric B. Kraemer
- Department of Medicine/Division of Endocrinology, Stanford University, Stanford, California, United States of America
- VA Palo Alto Health Care System, Palo Alto, California, United States of America
| | - Mary N. Teruel
- Department of Chemical and Systems Biology, Stanford University, Stanford, California, United States of America
- Department of Biochemistry and the Drukier Institute for Children’s Health, Weill Cornell Medical College of Cornell University, New York, New York, United States of America
- Department of Bioengineering, Stanford University School of Medicine, Stanford, California, United States of America
- Weill Center for Metabolic Health, Division of Endocrinology, Diabetes & Metabolism, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medical College of Cornell University, New York, New York, United States of America
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35
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Kfoury S, Michl P, Roth L. Modeling Obesity-Driven Pancreatic Carcinogenesis-A Review of Current In Vivo and In Vitro Models of Obesity and Pancreatic Carcinogenesis. Cells 2022; 11:3170. [PMID: 36231132 PMCID: PMC9563584 DOI: 10.3390/cells11193170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 10/01/2022] [Accepted: 10/06/2022] [Indexed: 11/16/2022] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is the most common pancreatic malignancy with a 5-year survival rate below 10%, thereby exhibiting the worst prognosis of all solid tumors. Increasing incidence together with a continued lack of targeted treatment options will cause PDAC to be the second leading cause of cancer-related deaths in the western world by 2030. Obesity belongs to the predominant risk factors for pancreatic cancer. To improve our understanding of the impact of obesity on pancreatic cancer development and progression, novel laboratory techniques have been developed. In this review, we summarize current in vitro and in vivo models of PDAC and obesity as well as an overview of a variety of models to investigate obesity-driven pancreatic carcinogenesis. We start by giving an overview on different methods to cultivate adipocytes in vitro as well as various in vivo mouse models of obesity. Moreover, established murine and human PDAC cell lines as well as organoids are summarized and the genetically engineered models of PCAC compared to xenograft models are introduced. Finally, we review published in vitro and in vivo models studying the impact of obesity on PDAC, enabling us to decipher the molecular basis of obesity-driven pancreatic carcinogenesis.
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Affiliation(s)
- Sally Kfoury
- Department of Internal Medicine I, Martin-Luther University Halle/Wittenberg, Ernst-Grube-Strasse 40, D-06120 Halle (Saale), Germany
| | - Patrick Michl
- Department of Internal Medicine I, Martin-Luther University Halle/Wittenberg, Ernst-Grube-Strasse 40, D-06120 Halle (Saale), Germany
- Department of Medicine, Internal Medicine IV, University Hospital Heidelberg, Im Neuenheimer Feld 410, D-69120 Heidelberg, Germany
| | - Laura Roth
- Department of Internal Medicine I, Martin-Luther University Halle/Wittenberg, Ernst-Grube-Strasse 40, D-06120 Halle (Saale), Germany
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA
- Department of Cell Biology, Harvard Medical School, Boston, MA 02215, USA
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36
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Boby N, Abbas MA, Lee EB, Im ZE, Lee SJ, Park SC. Microbiota modulation and anti-obesity effects of fermented Pyrus ussuriensis Maxim extract against high-fat diet-induced obesity in rats. Biomed Pharmacother 2022; 154:113629. [PMID: 36058150 DOI: 10.1016/j.biopha.2022.113629] [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: 06/28/2022] [Revised: 08/23/2022] [Accepted: 08/29/2022] [Indexed: 11/29/2022] Open
Abstract
Pyrus ussuriensis Maxim (Korean pear) has been used for hundreds of years as a traditional herbal medicine due to its strong phytochemical profile and pharmacological efficacy. In this study, we evaluated the anti-obesity potential of Pyrus ussuriensis Maxim extracts (PUE) and investigated the underlying mechanisms using a combination of in vitro, in vivo, and microbiota regulation approaches. In an adipogenesis assay, the fermented (F)PUE and non-fermented (NF)PUE significantly reduced the differentiation of 3T3-L1 preadipocyte in a dose-dependent manner with an IC50 of 85.33 and 96.67 µg/mL, respectively. In a high-fat diet (HFD)-induced obese rat model (n = 8 animals/group), oral administration of FPUE additionally reduced the total body weight gain significantly. No difference in food intake was observed, however, between the control-chow diet, FPUE, and NFPUE-treated HFD rats. Adipose tissue mass and systemic insulin resistance were markedly reduced in FPUE-treated HFD rats, in a dose-dependent manner. Treatment with FPUE also greatly improved obesity-related biomarkers, including total cholesterol, leptin, active ghrelin, Total GIP, adiponectin, and proinflammatory cytokines. Moreover, FPUE significantly suppressed HFD-induced adipogenic genes expression, while increasing fatty acid oxidation-related genes expression. Additionally, FPUE treatment attenuated the HFD-induced Firmicutes proportion within the intestinal microbiota by regulating key metabolic pathways, thus enhancing microbial population diversity (e.g., increasing Bacteroides, Bifidobacterium, Prevotella, Eubacterium, and Clostridium). Together, these results reveal a strong anti-obesity potential of FPUE through adipogenesis, lipid metabolism, weight reduction, and microbiota regulation, raising the possibility of developing FPUE as a novel therapeutic agent to control obesity and obesity-associated metabolic disorders.
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Affiliation(s)
- Naila Boby
- Laboratory of Veterinary Pharmacokinetics and Pharmacodynamics, College of Veterinary Medicine, Kyungpook National University, Daegu 41566, the Republic of Korea; Bacterial Disease Division, Animal and Plant Quarantine Agency, 177 Hyeksin 8-ro, Gimcheon-si, Gyeongsangbuk-do 39660, the Republic of Korea; Cardiovascular Research Institute, Kyungpook National University School of Medicine, Gukchabosang-ro 680, Jung-Gu, Daegu 41944, the Republic of Korea.
| | - Muhammad Aleem Abbas
- Laboratory of Veterinary Pharmacokinetics and Pharmacodynamics, College of Veterinary Medicine, Kyungpook National University, Daegu 41566, the Republic of Korea.
| | - Eon-Bee Lee
- Laboratory of Veterinary Pharmacokinetics and Pharmacodynamics, College of Veterinary Medicine, Kyungpook National University, Daegu 41566, the Republic of Korea.
| | - Zi-Eum Im
- Institute of Forest Resources Development, Andong-si, Gyeongsangbuk-do 36605, the Republic of Korea.
| | - Seung-Jin Lee
- Developmental and Reproductive Toxicology Research Group, Korea Institute of Toxicology, Daejeon 34114, the Republic of Korea.
| | - Seung-Chun Park
- Laboratory of Veterinary Pharmacokinetics and Pharmacodynamics, College of Veterinary Medicine, Kyungpook National University, Daegu 41566, the Republic of Korea; Cardiovascular Research Institute, Kyungpook National University School of Medicine, Gukchabosang-ro 680, Jung-Gu, Daegu 41944, the Republic of Korea.
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37
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Wang Y, Stancliffe E, Fowle-Grider R, Wang R, Wang C, Schwaiger-Haber M, Shriver LP, Patti GJ. Saturation of the mitochondrial NADH shuttles drives aerobic glycolysis in proliferating cells. Mol Cell 2022; 82:3270-3283.e9. [PMID: 35973426 PMCID: PMC10134440 DOI: 10.1016/j.molcel.2022.07.007] [Citation(s) in RCA: 65] [Impact Index Per Article: 32.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Revised: 05/12/2022] [Accepted: 07/14/2022] [Indexed: 12/21/2022]
Abstract
Proliferating cells exhibit a metabolic phenotype known as "aerobic glycolysis," which is characterized by an elevated rate of glucose fermentation to lactate irrespective of oxygen availability. Although several theories have been proposed, a rationalization for why proliferating cells seemingly waste glucose carbon by excreting it as lactate remains elusive. Using the NCI-60 cell lines, we determined that lactate excretion is strongly correlated with the activity of mitochondrial NADH shuttles, but not proliferation. Quantifying the fluxes of the malate-aspartate shuttle (MAS), the glycerol 3-phosphate shuttle (G3PS), and lactate dehydrogenase under various conditions demonstrated that proliferating cells primarily transform glucose to lactate when glycolysis outpaces the mitochondrial NADH shuttles. Increasing mitochondrial NADH shuttle fluxes decreased glucose fermentation but did not reduce the proliferation rate. Our results reveal that glucose fermentation, a hallmark of cancer, is a secondary consequence of MAS and G3PS saturation rather than a unique metabolic driver of cellular proliferation.
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Affiliation(s)
- Yahui Wang
- Department of Chemistry, Washington University in St. Louis, St. Louis, MO 63130, USA; Center for Metabolomics and Isotope Tracing, Washington University in St. Louis, St. Louis, MO 63130, USA
| | - Ethan Stancliffe
- Department of Chemistry, Washington University in St. Louis, St. Louis, MO 63130, USA; Department of Medicine, Washington University in St. Louis, St. Louis, MO 63130, USA; Center for Metabolomics and Isotope Tracing, Washington University in St. Louis, St. Louis, MO 63130, USA
| | - Ronald Fowle-Grider
- Department of Chemistry, Washington University in St. Louis, St. Louis, MO 63130, USA; Department of Medicine, Washington University in St. Louis, St. Louis, MO 63130, USA; Center for Metabolomics and Isotope Tracing, Washington University in St. Louis, St. Louis, MO 63130, USA
| | - Rencheng Wang
- Department of Chemistry, Washington University in St. Louis, St. Louis, MO 63130, USA; Center for Metabolomics and Isotope Tracing, Washington University in St. Louis, St. Louis, MO 63130, USA
| | - Cheng Wang
- Department of Chemistry, Washington University in St. Louis, St. Louis, MO 63130, USA; Center for Metabolomics and Isotope Tracing, Washington University in St. Louis, St. Louis, MO 63130, USA
| | - Michaela Schwaiger-Haber
- Department of Chemistry, Washington University in St. Louis, St. Louis, MO 63130, USA; Center for Metabolomics and Isotope Tracing, Washington University in St. Louis, St. Louis, MO 63130, USA
| | - Leah P Shriver
- Department of Chemistry, Washington University in St. Louis, St. Louis, MO 63130, USA; Department of Medicine, Washington University in St. Louis, St. Louis, MO 63130, USA; Center for Metabolomics and Isotope Tracing, Washington University in St. Louis, St. Louis, MO 63130, USA
| | - Gary J Patti
- Department of Chemistry, Washington University in St. Louis, St. Louis, MO 63130, USA; Department of Medicine, Washington University in St. Louis, St. Louis, MO 63130, USA; Siteman Cancer Center, Washington University in St. Louis, St. Louis, MO 63130, USA; Center for Metabolomics and Isotope Tracing, Washington University in St. Louis, St. Louis, MO 63130, USA.
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38
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Kim M, Park KW, Ahn Y, Lim EB, Kwak SH, Randy A, Song NJ, Park KS, Nho CW, Cho YS. Genetic association-based functional analysis detects HOGA1 as a potential gene involved in fat accumulation. Front Genet 2022; 13:951025. [PMID: 36035184 PMCID: PMC9412052 DOI: 10.3389/fgene.2022.951025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Accepted: 07/18/2022] [Indexed: 11/13/2022] Open
Abstract
Although there are a number of discoveries from genome-wide association studies (GWAS) for obesity, it has not been successful in linking GWAS results to biology. We sought to discover causal genes for obesity by conducting functional studies on genes detected from genetic association analysis. Gene-based association analysis of 917 individual exome sequences showed that HOGA1 attains exome-wide significance (p-value < 2.7 × 10–6) for body mass index (BMI). The mRNA expression of HOGA1 is significantly increased in human adipose tissues from obese individuals in the Genotype-Tissue Expression (GTEx) dataset, which supports the genetic association of HOGA1 with BMI. Functional analyses employing cell- and animal model-based approaches were performed to gain insights into the functional relevance of Hoga1 in obesity. Adipogenesis was retarded when Hoga1 was knocked down by siRNA treatment in a mouse 3T3-L1 cell line and a similar inhibitory effect was confirmed in mice with down-regulated Hoga1. Hoga1 antisense oligonucleotide (ASO) treatment reduced body weight, blood lipid level, blood glucose, and adipocyte size in high-fat diet-induced mice. In addition, several lipogenic genes including Srebf1, Scd1, Lp1, and Acaca were down-regulated, while lipolytic genes Cpt1l, Ppara, and Ucp1 were up-regulated. Taken together, HOGA1 is a potential causal gene for obesity as it plays a role in excess body fat development.
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Affiliation(s)
- Myungsuk Kim
- Natural Product Research Center, Korea Institute of Science and Technology, Gangneung, South Korea
| | - Kye Won Park
- Department of Food Science and Biotechnology, Sungkyunkwan University, Suwon, South Korea
| | - Yeongseon Ahn
- Department of Biomedical Science, Hallym University, Chuncheon, South Korea
| | - Eun Bi Lim
- Department of Biomedical Science, Hallym University, Chuncheon, South Korea
| | - Soo Heon Kwak
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, South Korea
| | - Ahmad Randy
- Natural Product Research Center, Korea Institute of Science and Technology, Gangneung, South Korea
| | - No Joon Song
- Department of Food Science and Biotechnology, Sungkyunkwan University, Suwon, South Korea
| | - Kyong Soo Park
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, South Korea
| | - Chu Won Nho
- Smart Farm Research Center, Korea Institute of Science and Technology, Gangneung, South Korea
- *Correspondence: Chu Won Nho, ; Yoon Shin Cho,
| | - Yoon Shin Cho
- Department of Biomedical Science, Hallym University, Chuncheon, South Korea
- *Correspondence: Chu Won Nho, ; Yoon Shin Cho,
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Thomalla M, Schmid A, Hehner J, Koehler S, Neumann E, Müller-Ladner U, Schäffler A, Karrasch T. Toll-like Receptor 7 (TLR7) Is Expressed in Adipocytes and the Pharmacological TLR7 Agonist Imiquimod and Adipocyte-Derived Cell-Free Nucleic Acids (cfDNA) Regulate Adipocyte Function. Int J Mol Sci 2022; 23:ijms23158475. [PMID: 35955609 PMCID: PMC9369246 DOI: 10.3390/ijms23158475] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 07/27/2022] [Accepted: 07/28/2022] [Indexed: 02/05/2023] Open
Abstract
Endosome-localized Toll-like receptors (TLRs) 3 and 9 are expressed and functionally active in adipocytes. The functionality and role of TLR7 in adipocyte biology and innate immunity of adipose tissue (AT) is poorly characterized. We analyzed TLR7 mRNA and protein expression in murine 3T3-L1 and primary adipocytes, in co-cultures of 3T3-L1 adipocytes with murine J774A.1 monocytes and in human AT. The effects of TLR7 agonists imiquimod (IMQ) and cell-free nucleic acids (cfDNA) on adipokine concentration in cell-culture supernatants and gene expression profile were investigated. We found that TLR7 expression is strongly induced during adipocyte differentiation. TLR7 gene expression in adipocytes and AT stroma-vascular cells (SVC) seems to be independent of TLR9. IMQ downregulates resistin concentration in adipocyte cell-culture supernatants and modulates gene expression of glucose transporter Glut4. Adipocyte-derived cfDNA reduces adiponectin and resistin in cell-culture supernatants and potentially inhibits Glut4 gene expression. The responsiveness of 3T3-L1 adipocytes to imiquimod is preserved in co-culture with J774A.1 monocytes. Obesity-related, adipocyte-derived cfDNA engages adipocytic pattern recognition receptors (PRRs), modulating AT immune and metabolic homeostasis during adipose inflammation.
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Affiliation(s)
- Miriam Thomalla
- Department of Internal Medicine III, Justus-Liebig-University Giessen, 35390 Gießen, Germany; (M.T.); (A.S.); (J.H.); (S.K.); (A.S.)
| | - Andreas Schmid
- Department of Internal Medicine III, Justus-Liebig-University Giessen, 35390 Gießen, Germany; (M.T.); (A.S.); (J.H.); (S.K.); (A.S.)
| | - Julia Hehner
- Department of Internal Medicine III, Justus-Liebig-University Giessen, 35390 Gießen, Germany; (M.T.); (A.S.); (J.H.); (S.K.); (A.S.)
| | - Sebastian Koehler
- Department of Internal Medicine III, Justus-Liebig-University Giessen, 35390 Gießen, Germany; (M.T.); (A.S.); (J.H.); (S.K.); (A.S.)
| | - Elena Neumann
- Department of Rheumatology and Clinical Immunology, Justus-Liebig-University Giessen, Campus Kerckhoff, 61231 Bad Nauheim, Germany; (E.N.); (U.M.-L.)
| | - Ulf Müller-Ladner
- Department of Rheumatology and Clinical Immunology, Justus-Liebig-University Giessen, Campus Kerckhoff, 61231 Bad Nauheim, Germany; (E.N.); (U.M.-L.)
| | - Andreas Schäffler
- Department of Internal Medicine III, Justus-Liebig-University Giessen, 35390 Gießen, Germany; (M.T.); (A.S.); (J.H.); (S.K.); (A.S.)
| | - Thomas Karrasch
- Department of Internal Medicine III, Justus-Liebig-University Giessen, 35390 Gießen, Germany; (M.T.); (A.S.); (J.H.); (S.K.); (A.S.)
- Correspondence:
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Lecoutre S, Lambert M, Drygalski K, Dugail I, Maqdasy S, Hautefeuille M, Clément K. Importance of the Microenvironment and Mechanosensing in Adipose Tissue Biology. Cells 2022; 11:cells11152310. [PMID: 35954152 PMCID: PMC9367348 DOI: 10.3390/cells11152310] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 07/19/2022] [Accepted: 07/23/2022] [Indexed: 11/16/2022] Open
Abstract
The expansion of adipose tissue is an adaptive mechanism that increases nutrient buffering capacity in response to an overall positive energy balance. Over the course of expansion, the adipose microenvironment undergoes continual remodeling to maintain its structural and functional integrity. However, in the long run, adipose tissue remodeling, typically characterized by adipocyte hypertrophy, immune cells infiltration, fibrosis and changes in vascular architecture, generates mechanical stress on adipose cells. This mechanical stimulus is then transduced into a biochemical signal that alters adipose function through mechanotransduction. In this review, we describe the physical changes occurring during adipose tissue remodeling, and how they regulate adipose cell physiology and promote obesity-associated dysfunction in adipose tissue.
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Affiliation(s)
- Simon Lecoutre
- Nutrition and Obesities: Systemic Approaches Research Group (Nutri-Omics), Sorbonne Université, INSERM, F-75013 Paris, France; (S.L.); (K.D.); (I.D.)
| | - Mélanie Lambert
- Labex Inflamex, Université Sorbonne Paris Nord, INSERM, F-93000 Bobigny, France;
| | - Krzysztof Drygalski
- Nutrition and Obesities: Systemic Approaches Research Group (Nutri-Omics), Sorbonne Université, INSERM, F-75013 Paris, France; (S.L.); (K.D.); (I.D.)
| | - Isabelle Dugail
- Nutrition and Obesities: Systemic Approaches Research Group (Nutri-Omics), Sorbonne Université, INSERM, F-75013 Paris, France; (S.L.); (K.D.); (I.D.)
| | - Salwan Maqdasy
- Department of Medicine (H7), Karolinska Institutet Hospital, C2-94, 14186 Stockholm, Sweden;
| | - Mathieu Hautefeuille
- Laboratoire de Biologie du Développement (UMR 7622), IBPS, Sorbonne Université, F-75005 Paris, France;
| | - Karine Clément
- Nutrition and Obesities: Systemic Approaches Research Group (Nutri-Omics), Sorbonne Université, INSERM, F-75013 Paris, France; (S.L.); (K.D.); (I.D.)
- Assistance Publique Hôpitaux de Paris, Nutrition Department, CRNH Ile-de-France, Pitié-Salpêtrière Hospital, F-75013 Paris, France
- Correspondence: or
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Shalitin S, Gat-Yablonski G. Associations of Obesity with Linear Growth and Puberty. Horm Res Paediatr 2022; 95:120-136. [PMID: 34130293 DOI: 10.1159/000516171] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Accepted: 03/27/2021] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND The prevalence of obesity in childhood has increased dramatically in recent decades with increased risk of developing cardiometabolic and other comorbidities. Childhood adiposity may also influence processes of growth and puberty. SUMMARY Growth patterns of obesity during childhood have been shown to be associated with increased linear growth in early childhood, leading to accelerated epiphyseal growth plate (EGP) maturation. Several hormones secreted by the adipose tissue may affect linear growth in the context of obesity, both via the growth hormone IGF-1 axis and via a direct effect on the EGP. The observation that children with obesity tend to mature earlier than lean children has led to the assumption that the degree of body fatness may trigger the neuroendocrine events that lead to pubertal onset. The most probable link between obesity and puberty is leptin and its interaction with the kisspeptin system, which is an important regulator of puberty. However, peripheral action of adipose tissue could also be involved in changes in the onset of puberty. In addition, nutritional factors, epigenetics, and endocrine-disrupting chemicals are potential mediators linking pubertal onset to obesity. In this review, we focused on interactions of obesity with linear growth and pubertal processes, based on basic research and clinical data in humans. KEY MESSAGE Children with obesity are subject to accelerated linear growth with risk of impaired adult height and early puberty, with its psychological consequences. The data highlight another important objective in combatting childhood obesity, for the prevention of abnormal growth and pubertal patterns.
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Affiliation(s)
- Shlomit Shalitin
- National Center for Childhood Diabetes, Schneider Children's Medical Center of Israel, The Jesse Z and Sara Lea Shafer Institute for Endocrinology and Diabetes, Petach Tikva, Israel.,Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Galia Gat-Yablonski
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.,Felsenstein Medical Research Center, Petach Tikva, Israel
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Inhibition of palmitic acid induced adipogenesis by natural polyphenols in 3T3-L1 adipocytes. In Vitro Cell Dev Biol Anim 2022; 58:396-407. [PMID: 35678984 DOI: 10.1007/s11626-022-00689-4] [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: 09/07/2021] [Accepted: 04/30/2022] [Indexed: 11/05/2022]
Abstract
Dietary free fatty acids induce preadipocyte differentiation in the presence of a hormonal cocktail in 3T3-L1 adipocytes. Plant polyphenols are curb adipocyte differentiation and protect from metabolic stress. In the present study, we examined the effects of the saturated fatty acid, palmitic acid (PA) in presence of flavonoids, chrysin (CR) and hesperidin (HD) and phenolic acid, syringic acid (SYA) and sinapic acid (SIA). Adipocytes were incubated for 10 d with 100 μmol of PA along with 10-100 µmol CR/HD and 100-1000 µmol SYA/SIA. PA induced clonal expansion of preadipocytes, differentiation and oxidative stress in 3T3-L1 cells following 10 d of differentiation. Adipocytes treated with PA exhibited an increase of 300% in clonal population, 110% lipid and 172% reactive oxygen species accumulation. But treatment with CR, HD, SYA and SIA in the presence of PA concentration-dependent effect was observed. Concentrations of CR/HD and SYA/SIA inhibited PA-induced mRNA expression of PPARγ, C/EBPα, SREBP-1c, FAS and NOX4. Moreover, CR, HD, SYA and SIA did not exhibit toxicity in Drosophila DNA. In summary, these results suggest that dietary fatty acids act directly on adipocytes and addition of CR, HD, SYA and SIA resulted in reduction of PA-induced negative effects on 3T3-L1 adipocytes. HIGHLIGHTS: • Palmitic acid, the common dietary free fatty acid, is known to induce adipogenesis in 3T3-L1 adipocytes. • Treatment of differentiating adipocytes with flavonoids and phenolic acids reduced palmitic acid-induced clonal expansion of preadipocytes. • Phytocompounds reduced lipid accumulation and triglyceride production as well as ROS accumulation. • Thus, the phytocompounds showed effective anti-adipogenic activity even in palmitic acid challenged environment in adipocytes.
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Kassotis CD, Vom Saal FS, Babin PJ, Lagadic-Gossmann D, Le Mentec H, Blumberg B, Mohajer N, Legrand A, Munic Kos V, Martin-Chouly C, Podechard N, Langouët S, Touma C, Barouki R, Kim MJ, Audouze K, Choudhury M, Shree N, Bansal A, Howard S, Heindel JJ. Obesity III: Obesogen assays: Limitations, strengths, and new directions. Biochem Pharmacol 2022; 199:115014. [PMID: 35393121 PMCID: PMC9050906 DOI: 10.1016/j.bcp.2022.115014] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 03/14/2022] [Accepted: 03/15/2022] [Indexed: 12/11/2022]
Abstract
There is increasing evidence of a role for environmental contaminants in disrupting metabolic health in both humans and animals. Despite a growing need for well-understood models for evaluating adipogenic and potential obesogenic contaminants, there has been a reliance on decades-old in vitro models that have not been appropriately managed by cell line providers. There has been a quick rise in available in vitro models in the last ten years, including commercial availability of human mesenchymal stem cell and preadipocyte models; these models require more comprehensive validation but demonstrate real promise in improved translation to human metabolic health. There is also progress in developing three-dimensional and co-culture techniques that allow for the interrogation of a more physiologically relevant state. While diverse rodent models exist for evaluating putative obesogenic and/or adipogenic chemicals in a physiologically relevant context, increasing capabilities have been identified for alternative model organisms such as Drosophila, C. elegans, zebrafish, and medaka in metabolic health testing. These models have several appreciable advantages, including most notably their size, rapid development, large brood sizes, and ease of high-resolution lipid accumulation imaging throughout the organisms. They are anticipated to expand the capabilities of metabolic health research, particularly when coupled with emerging obesogen evaluation techniques as described herein.
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Affiliation(s)
- Christopher D Kassotis
- Institute of Environmental Health Sciences and Department of Pharmacology, Wayne State University, Detroit, MI 48202, United States.
| | - Frederick S Vom Saal
- Division of Biological Sciences, The University of Missouri, Columbia, MO 65211, United States
| | - Patrick J Babin
- Department of Life and Health Sciences, University of Bordeaux, INSERM, Pessac, France
| | - Dominique Lagadic-Gossmann
- Univ Rennes, Inserm, EHESP, Irset (Research Institute for Environmental and Occupational Health) - UMR_S 1085, 35 000 Rennes, France
| | - Helene Le Mentec
- Univ Rennes, Inserm, EHESP, Irset (Research Institute for Environmental and Occupational Health) - UMR_S 1085, 35 000 Rennes, France
| | - Bruce Blumberg
- Department of Developmental and Cell Biology, The University of California, Irvine, Irvine CA 92697, United States
| | - Nicole Mohajer
- Department of Developmental and Cell Biology, The University of California, Irvine, Irvine CA 92697, United States
| | - Antoine Legrand
- Univ Rennes, Inserm, EHESP, Irset (Research Institute for Environmental and Occupational Health) - UMR_S 1085, 35 000 Rennes, France
| | - Vesna Munic Kos
- Department of Physiology and Pharmacology, Karolinska Institute, Solna, Sweden
| | - Corinne Martin-Chouly
- Univ Rennes, Inserm, EHESP, Irset (Research Institute for Environmental and Occupational Health) - UMR_S 1085, 35 000 Rennes, France
| | - Normand Podechard
- Univ Rennes, Inserm, EHESP, Irset (Research Institute for Environmental and Occupational Health) - UMR_S 1085, 35 000 Rennes, France
| | - Sophie Langouët
- Univ Rennes, Inserm, EHESP, Irset (Research Institute for Environmental and Occupational Health) - UMR_S 1085, 35 000 Rennes, France
| | - Charbel Touma
- Univ Rennes, Inserm, EHESP, Irset (Research Institute for Environmental and Occupational Health) - UMR_S 1085, 35 000 Rennes, France
| | - Robert Barouki
- Department of Biochemistry, University of Paris, INSERM, Paris, France
| | - Min Ji Kim
- Sorbonne Paris Nord University, Bobigny, INSERM U1124 (T3S), Paris, France
| | | | - Mahua Choudhury
- Department of Pharmaceutical Sciences, Texas A & M University, College Station, TX 77843, United States
| | - Nitya Shree
- Department of Pharmaceutical Sciences, Texas A & M University, College Station, TX 77843, United States
| | - Amita Bansal
- College of Health & Medicine, Australian National University, Canberra, ACT, 2611, Australia
| | - Sarah Howard
- Healthy Environment and Endocrine Disruptor Strategies, Commonweal, Bolinas, CA 92924, United States
| | - Jerrold J Heindel
- Healthy Environment and Endocrine Disruptor Strategies, Commonweal, Bolinas, CA 92924, United States
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Karakus E, Schmid A, Leiting S, Fühler B, Schäffler A, Jakob T, Geyer J. Role of the Steroid Sulfate Uptake Transporter Soat (Slc10a6) in Adipose Tissue and 3T3-L1 Adipocytes. Front Mol Biosci 2022; 9:863912. [PMID: 35573729 PMCID: PMC9095825 DOI: 10.3389/fmolb.2022.863912] [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: 01/27/2022] [Accepted: 03/24/2022] [Indexed: 11/22/2022] Open
Abstract
In addition to the endocrine and paracrine systems, peripheral tissues such as gonads, skin, and adipose tissue are involved in the intracrine mechanisms responsible for the formation of sex steroids via the transformation of dehydroepiandrosterone and dehydroepiandrosterone sulfate (DHEA/DHEAS) into potent androgenic and estrogenic hormones. Numerous studies have examined the relationship between overweight, central obesity, and plasma levels of DHEA and DHEAS. The sodium-dependent organic anion transporter Soat (Slc10a6) is a plasma membrane uptake transporter for sulfated steroids. Significantly increased expression of Slc10a6 mRNA has been previously described in organs and tissues of lipopolysaccharide (LPS)-treated mice, including white adipose tissue. These findings suggest that Soat plays a role in the supply of steroids in peripheral target tissues. The present study aimed to investigate the expression of Soat in adipocytes and its role in adipogenesis. Soat expression was analyzed in mouse white intra-abdominal (WAT), subcutaneous (SAT), and brown (BAT) adipose tissue samples and in murine 3T3-L1 adipocytes. In addition, adipose tissue mass and size of the adipocytes were analyzed in wild-type and Slc10a6−/− knockout mice. Soat expression was detected in mouse WAT, SAT, and BAT using immunofluorescence. The expression of Slc10a6 mRNA was significantly higher in 3T3-L1 adipocytes than that of preadipocytes and was significantly upregulated by exposure to lipopolysaccharide (LPS). Slc10a6 mRNA levels were also upregulated in the adipose tissue of LPS-treated mice. In Slc10a6−/− knockout mice, adipocytes increased in size in the WAT and SAT of female mice and in the BAT of male mice, suggesting adipocyte hypertrophy. The serum levels of adiponectin, resistin, and leptin were comparable in wild-type and Slc10a6−/− knockout mice. The treatment of 3T3-L1 adipocytes with DHEA significantly reduced lipid accumulation, while DHEAS did not have a significant effect. However, following LPS-induced Soat upregulation, DHEAS also significantly inhibited lipid accumulation in adipocytes. In conclusion, Soat-mediated import of DHEAS and other sulfated steroids could contribute to the complex pathways of sex steroid intracrinology in adipose tissues. Although in cell cultures the Soat-mediated uptake of DHEAS appears to reduce lipid accumulation, in Slc10a6−/− knockout mice, the Soat deletion induced adipocyte hyperplasia through hitherto unknown mechanisms.
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Affiliation(s)
- Emre Karakus
- Institute of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Justus Liebig University, Giessen, Germany
| | - Andreas Schmid
- Department of Internal Medicine III, Giessen University Hospital, Justus Liebig University, Giessen, Germany
| | - Silke Leiting
- Institute of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Justus Liebig University, Giessen, Germany
| | - Bärbel Fühler
- Institute of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Justus Liebig University, Giessen, Germany
| | - Andreas Schäffler
- Department of Internal Medicine III, Giessen University Hospital, Justus Liebig University, Giessen, Germany
| | - Thilo Jakob
- Department of Dermatology and Allergology, Giessen University Hospital, Justus Liebig University, Giessen, Germany
| | - Joachim Geyer
- Institute of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Justus Liebig University, Giessen, Germany
- *Correspondence: Joachim Geyer,
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Fujimaki T, Sato C, Yamamoto R, Watanabe S, Fujita H, Kikuno H, Sue M, Matsushima Y. Isolation of phenolic acids and tannin acids from Mangifera indica L. kernels as inhibitors of lipid accumulation in 3T3-L1 cells. Biosci Biotechnol Biochem 2022; 86:665-671. [PMID: 35234829 DOI: 10.1093/bbb/zbac030] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Accepted: 02/23/2022] [Indexed: 12/24/2022]
Abstract
Mango (Mangifera indica L.) kernels are usually discarded as waste, but they contain many pharmacological properties and bioactivities. In this study, we isolated antiobesity agents from mango kernels that inhibit intracellular lipid formation in 3T3-L1 adipocytes. Two phenolic acids, ethyl gallate and ethyl digallate, and 2 tannin acids, 1,2,3,4,6-penta-O-galloyl-β-d-glucose (PGG) and 3-O-digalloyl-1,2,4,6-tetra-O-β-d-glucose (HGG), were identified from mango kernels and were found to be suppressed lipid accumulation as evidenced by Oil Red O staining. Furthermore, ethyl digallate, PGG, and HGG significantly downregulated the mRNA expression of adipogenic transcription factors such as C/EBPα and PPARγ. However, ethyl gallate did not affect the expression of these transcription factors. Our findings reveal the presence of antiobesity compounds in mango kernels, implying its therapeutic role against obesity.
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Affiliation(s)
- Takahiro Fujimaki
- Department of Agricultural Chemistry, Faculty of Applied Biosciences, Tokyo University of Agriculture, Setagaya-ku, Tokyo, Japan
| | - Chikako Sato
- Department of Agricultural Chemistry, Faculty of Applied Biosciences, Tokyo University of Agriculture, Setagaya-ku, Tokyo, Japan
| | - Rei Yamamoto
- Department of Agricultural Chemistry, Faculty of Applied Biosciences, Tokyo University of Agriculture, Setagaya-ku, Tokyo, Japan
| | - Sayo Watanabe
- Department of Agricultural Chemistry, Faculty of Applied Biosciences, Tokyo University of Agriculture, Setagaya-ku, Tokyo, Japan
| | - Hikaru Fujita
- Department of Agricultural Chemistry, Faculty of Applied Biosciences, Tokyo University of Agriculture, Setagaya-ku, Tokyo, Japan
| | - Hidehiko Kikuno
- Faculty of International Agriculture and Food studies, Miyako Subtropical Training and Research Farm, Tokyo University of Agriculture, Miyako-jima, Okinawa, Japan
| | - Masayuki Sue
- Department of Agricultural Chemistry, Faculty of Applied Biosciences, Tokyo University of Agriculture, Setagaya-ku, Tokyo, Japan
| | - Yoshitaka Matsushima
- Department of Agricultural Chemistry, Faculty of Applied Biosciences, Tokyo University of Agriculture, Setagaya-ku, Tokyo, Japan
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Nartey MNN, Jisaka M, Syeda PK, Nishimura K, Shimizu H, Yokota K. Prostaglandin D2 and its analog, 11d-11m-PGD2, added during the differentiation phase contribute to adipogenic program inhibition in 3T3-L1 cells. Biosci Biotechnol Biochem 2022; 86:628-634. [DOI: 10.1093/bbb/zbac035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Accepted: 03/04/2022] [Indexed: 12/15/2022]
Abstract
ABSTRACT
We previously reported that prostaglandin (PG)D2 and its isosteric analog, 11-deoxy-11-methylene-PGD2 (11d-11m-PGD2), promote adipogenesis in 3T3-L1 cells during the maturation phase. Focusing on the differentiation phase, although both PGs inhibited adipogenesis, this effect was canceled out by PGI2 and PGJ2 derivatives. Thus, PGD2 and 11d-11m-PGD2 play different roles during the phases, but do not affect PGI2- and PGJ2-derivative-induced adipogenesis.
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Affiliation(s)
- Michael N N Nartey
- The , 4-101 Koyama-Minami, Tottori , Japan
- United Graduate School of Agricultural Sciences, Tottori University , 4-101 Koyama-Minami, Tottori , Japan
- Council for Scientific and Industrial Research-Animal Research Institute , Achimota, Accra , Ghana
| | - Mitsuo Jisaka
- The , 4-101 Koyama-Minami, Tottori , Japan
- United Graduate School of Agricultural Sciences, Tottori University , 4-101 Koyama-Minami, Tottori , Japan
- Department of Life Science and Biotechnology, Shimane University , 1060 Nishikawatsu-Cho, Matsue, Shimane , Japan
- Project Center for Fortification of Local Specialty Food Functions, Shimane University , 1060 Nishikawatsu-Cho, Matsue, Shimane , Japan
- Institute of Agricultural and Life Sciences, Academic Assembly, Shimane University , 1060 Nishikawatsu-Cho, Matsue, Shimane , Japan
| | - Pinky Karim Syeda
- Department of Life Science and Biotechnology, Shimane University , 1060 Nishikawatsu-Cho, Matsue, Shimane , Japan
| | - Kohji Nishimura
- The , 4-101 Koyama-Minami, Tottori , Japan
- United Graduate School of Agricultural Sciences, Tottori University , 4-101 Koyama-Minami, Tottori , Japan
- Department of Life Science and Biotechnology, Shimane University , 1060 Nishikawatsu-Cho, Matsue, Shimane , Japan
- Project Center for Fortification of Local Specialty Food Functions, Shimane University , 1060 Nishikawatsu-Cho, Matsue, Shimane , Japan
- Institute of Agricultural and Life Sciences, Academic Assembly, Shimane University , 1060 Nishikawatsu-Cho, Matsue, Shimane , Japan
- Interdisciplinary Center for Science Research, Shimane University , 1060 Nishikawatsu-Cho, Matsue, Shimane , Japan
- Raman Project Center for Medical and Biological Applications, Shimane University , 1060 Nishikawatsu-Cho, Matsue, Shimane , Japan
| | - Hidehisa Shimizu
- The , 4-101 Koyama-Minami, Tottori , Japan
- United Graduate School of Agricultural Sciences, Tottori University , 4-101 Koyama-Minami, Tottori , Japan
- Department of Life Science and Biotechnology, Shimane University , 1060 Nishikawatsu-Cho, Matsue, Shimane , Japan
- Project Center for Fortification of Local Specialty Food Functions, Shimane University , 1060 Nishikawatsu-Cho, Matsue, Shimane , Japan
- Institute of Agricultural and Life Sciences, Academic Assembly, Shimane University , 1060 Nishikawatsu-Cho, Matsue, Shimane , Japan
- Interdisciplinary Center for Science Research, Shimane University , 1060 Nishikawatsu-Cho, Matsue, Shimane , Japan
- Raman Project Center for Medical and Biological Applications, Shimane University , 1060 Nishikawatsu-Cho, Matsue, Shimane , Japan
- Estuary Research Center, Shimane University , 1060 Nishikawatsu-Cho, Matsue, Shimane , Japan
| | - Kazushige Yokota
- The , 4-101 Koyama-Minami, Tottori , Japan
- United Graduate School of Agricultural Sciences, Tottori University , 4-101 Koyama-Minami, Tottori , Japan
- Department of Life Science and Biotechnology, Shimane University , 1060 Nishikawatsu-Cho, Matsue, Shimane , Japan
- Project Center for Fortification of Local Specialty Food Functions, Shimane University , 1060 Nishikawatsu-Cho, Matsue, Shimane , Japan
- Institute of Agricultural and Life Sciences, Academic Assembly, Shimane University , 1060 Nishikawatsu-Cho, Matsue, Shimane , Japan
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Kassotis CD, LeFauve MK, Chiang YTT, Knuth MM, Schkoda S, Kullman SW. Nonylphenol Polyethoxylates Enhance Adipose Deposition in Developmentally Exposed Zebrafish. TOXICS 2022; 10:99. [PMID: 35202285 PMCID: PMC8879477 DOI: 10.3390/toxics10020099] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 02/15/2022] [Accepted: 02/15/2022] [Indexed: 12/05/2022]
Abstract
Alkylphenol polyethoxylates (APEOs), such as nonylphenol ethoxylates (NPEOs), are high-production-volume surfactants used in laundry detergents, hard-surface cleaners, pesticide formulations, textile production, oils, paints, and other products. NPEOs comprise -80% of the total production of APEOs and are widely reported across diverse environmental matrices. Despite a growing push for replacement products, APEOs continue to be released into the environment through wastewater at significant levels. Research into related nonionic surfactants from varying sources has reported metabolic health impacts, and we have previously demonstrated that diverse APEOs and alcohol polyethoxylates promote adipogenesis in the murine 3T3-L1 pre-adipocyte model. These effects appeared to be independent of the base alkylphenol and related to the ethoxylate chain length, though limited research has evaluated NPEO exposures in animal models. The goals of this study were to assess the potential of NPEOs to promote adiposity (Nile red fluorescence quantification) and alter growth and/or development (toxicity, length, weight, and energy expenditure) of developmentally exposed zebrafish (Danio rerio). We also sought to expand our understanding of the ability to promote adiposity through evaluation in human mesenchymal stem cells. Herein, we demonstrated consistent adipogenic effects in two separate human bone-marrow-derived mesenchymal stem cell models, and that nonylphenol and its ethoxylates promoted weight gain and increased adipose deposition in developmentally exposed zebrafish. Notably, across both cell and zebrafish models we report increasing adipogenic/obesogenic activity with increasing ethoxylate chain lengths up to maximums around NPEO-6 and then decreasing activity with the longest ethoxylate chain lengths. This research suggests metabolic health concerns for these common obesogens, suggesting further need to assess molecular mechanisms and better characterize environmental concentrations for human health risk assessments.
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Affiliation(s)
- Christopher D. Kassotis
- Institute of Environmental Health Sciences and Department of Pharmacology, Wayne State University, Detroit, MI 48202, USA; (M.K.L.); (Y.-T.T.C.)
| | - Matthew K. LeFauve
- Institute of Environmental Health Sciences and Department of Pharmacology, Wayne State University, Detroit, MI 48202, USA; (M.K.L.); (Y.-T.T.C.)
| | - Yu-Ting Tiffany Chiang
- Institute of Environmental Health Sciences and Department of Pharmacology, Wayne State University, Detroit, MI 48202, USA; (M.K.L.); (Y.-T.T.C.)
| | - Megan M. Knuth
- Lineberger Comprehensive Cancer Center, University of North Carolina School of Medicine at Chapel Hill, Chapel Hill, NC 27514, USA;
- Department of Genetics, University of North Carolina School of Medicine at Chapel Hill, Chapel Hill, NC 27514, USA
| | - Stacy Schkoda
- Toxicology Program, North Carolina State University, Raleigh, NC 27695, USA; (S.S.); (S.W.K.)
| | - Seth W. Kullman
- Toxicology Program, North Carolina State University, Raleigh, NC 27695, USA; (S.S.); (S.W.K.)
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48
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Czapiewski R, Batrakou DG, de Las Heras JI, Carter RN, Sivakumar A, Sliwinska M, Dixon CR, Webb S, Lattanzi G, Morton NM, Schirmer EC. Genomic loci mispositioning in Tmem120a knockout mice yields latent lipodystrophy. Nat Commun 2022; 13:321. [PMID: 35027552 PMCID: PMC8758788 DOI: 10.1038/s41467-021-27869-2] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Accepted: 12/19/2021] [Indexed: 12/13/2022] Open
Abstract
Little is known about how the observed fat-specific pattern of 3D-spatial genome organisation is established. Here we report that adipocyte-specific knockout of the gene encoding nuclear envelope transmembrane protein Tmem120a disrupts fat genome organisation, thus causing a lipodystrophy syndrome. Tmem120a deficiency broadly suppresses lipid metabolism pathway gene expression and induces myogenic gene expression by repositioning genes, enhancers and miRNA-encoding loci between the nuclear periphery and interior. Tmem120a-/- mice, particularly females, exhibit a lipodystrophy syndrome similar to human familial partial lipodystrophy FPLD2, with profound insulin resistance and metabolic defects that manifest upon exposure to an obesogenic diet. Interestingly, similar genome organisation defects occurred in cells from FPLD2 patients that harbour nuclear envelope protein encoding LMNA mutations. Our data indicate TMEM120A genome organisation functions affect many adipose functions and its loss may yield adiposity spectrum disorders, including a miRNA-based mechanism that could explain muscle hypertrophy in human lipodystrophy.
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Affiliation(s)
- Rafal Czapiewski
- Institute of Cell Biology, University of Edinburgh, Edinburgh, EH9 3BF, UK
| | - Dzmitry G Batrakou
- Institute of Cell Biology, University of Edinburgh, Edinburgh, EH9 3BF, UK
| | | | - Roderick N Carter
- Molecular Metabolism Group, University/BHF Centre for Cardiovascular Science, Queen's Medical Research Institute, University of Edinburgh, Edinburgh, EH16 4TJ, UK
| | | | | | - Charles R Dixon
- Institute of Cell Biology, University of Edinburgh, Edinburgh, EH9 3BF, UK
- Wellcome Centre for Cell Biology, University of Edinburgh, Edinburgh, EH9 3BF, UK
| | - Shaun Webb
- Wellcome Centre for Cell Biology, University of Edinburgh, Edinburgh, EH9 3BF, UK
| | - Giovanna Lattanzi
- CNR - National Research Council of Italy, Institute of Molecular Genetics "Luigi Luca Cavalli-Sforza", Unit of Bologna, Bologna, 40136, Italy
- IRCCS, Istituto Ortopedico Rizzoli, Bologna, 40136, Italy
| | - Nicholas M Morton
- Molecular Metabolism Group, University/BHF Centre for Cardiovascular Science, Queen's Medical Research Institute, University of Edinburgh, Edinburgh, EH16 4TJ, UK
| | - Eric C Schirmer
- Institute of Cell Biology, University of Edinburgh, Edinburgh, EH9 3BF, UK.
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49
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Zhao X, Hendriks I, Le Gras S, Ye T, Ramos-Alonso L, Nguéa P A, Lien G, Ghasemi F, Klungland A, Jost B, Enserink J, Nielsen M, Chymkowitch P. OUP accepted manuscript. Nucleic Acids Res 2022; 50:1351-1369. [PMID: 35100417 PMCID: PMC8860575 DOI: 10.1093/nar/gkac027] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 01/05/2022] [Accepted: 01/10/2022] [Indexed: 11/20/2022] Open
Abstract
Tight control of gene expression networks required for adipose tissue formation and plasticity is essential for adaptation to energy needs and environmental cues. However, the mechanisms that orchestrate the global and dramatic transcriptional changes leading to adipocyte differentiation remain to be fully unraveled. We investigated the regulation of nascent transcription by the sumoylation pathway during adipocyte differentiation using SLAMseq and ChIPseq. We discovered that the sumoylation pathway has a dual function in differentiation; it supports the initial downregulation of pre-adipocyte-specific genes, while it promotes the establishment of the mature adipocyte transcriptional program. By characterizing endogenous sumoylome dynamics in differentiating adipocytes by mass spectrometry, we found that sumoylation of specific transcription factors like PPARγ/RXR and their co-factors are associated with the transcription of adipogenic genes. Finally, using RXR as a model, we found that sumoylation may regulate adipogenic transcription by supporting the chromatin occurrence of transcription factors. Our data demonstrate that the sumoylation pathway supports the rewiring of transcriptional networks required for formation of functional adipocytes. This study also provides the scientists in the field of cellular differentiation and development with an in-depth resource of the dynamics of the SUMO-chromatin landscape, SUMO-regulated transcription and endogenous sumoylation sites during adipocyte differentiation.
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Affiliation(s)
- Xu Zhao
- Department of Biosciences, Faculty of Mathematics and Natural Sciences, University of Oslo, 0316 Oslo, Norway
- Department of Microbiology, Oslo University Hospital, 0372 Oslo, Norway
| | | | | | - Tao Ye
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, CNRS UMR7104, Inserm U964, Université de Strasbourg, Illkirch, France
| | - Lucía Ramos-Alonso
- Department of Biosciences, Faculty of Mathematics and Natural Sciences, University of Oslo, 0316 Oslo, Norway
- Department of Microbiology, Oslo University Hospital, 0372 Oslo, Norway
| | - Aurélie Nguéa P
- Department of Microbiology, Oslo University Hospital, 0372 Oslo, Norway
| | - Guro Flor Lien
- Department of Microbiology, Oslo University Hospital, 0372 Oslo, Norway
| | - Fatemeh Ghasemi
- Department of Biosciences, Faculty of Mathematics and Natural Sciences, University of Oslo, 0316 Oslo, Norway
| | - Arne Klungland
- Department of Biosciences, Faculty of Mathematics and Natural Sciences, University of Oslo, 0316 Oslo, Norway
- Department of Microbiology, Oslo University Hospital, 0372 Oslo, Norway
| | - Bernard Jost
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, CNRS UMR7104, Inserm U964, Université de Strasbourg, Illkirch, France
| | - Jorrit M Enserink
- Department of Biosciences, Faculty of Mathematics and Natural Sciences, University of Oslo, 0316 Oslo, Norway
- Department of Molecular Cell Biology, Institute for Cancer Research,Oslo University Hospital, 0372 Oslo, Norway
- Centre for Cancer Cell Reprogramming, Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, 0318 Oslo, Norway
| | - Michael L Nielsen
- Proteomics Program, Novo Nordisk Foundation Center for Protein Research (NNF-CPR), Faculty of Health and Medical Sciences, University of Copenhagen, 2200 Copenhagen, Denmark
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50
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Jang SY, Kim J, Park JT, Liu CY, Korn BS, Kikkawa DO, Lee EJ, Yoon JS. Therapeutic Potential of Targeting Periostin in the Treatment of Graves' Orbitopathy. Front Endocrinol (Lausanne) 2022; 13:900791. [PMID: 35707463 PMCID: PMC9189304 DOI: 10.3389/fendo.2022.900791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 04/29/2022] [Indexed: 11/13/2022] Open
Abstract
Periostin is a matricellular protein that is ubiquitously expressed in normal human tissues and is involved in pathologic mechanism of chronic inflammatory and fibrotic disease. In this study we investigate periostin in the pathogenesis of Graves' orbitopathy (GO) using human orbital adipose tissue obtained from surgery and primary cultured orbital fibroblasts in vitro. POSTN (gene encoding periostin) expression in Graves' orbital tissues and healthy control tissues was studied, and the role of periostin in GO pathologic mechanism was examined through small-interfering RNA (siRNA)-mediated silencing. POSTN gene expression was significantly higher in Graves' orbital tissues than healthy control tissues in real-time PCR results, and immunohistochemical staining revealed higher expression of periostin in Graves' orbital tissues than normal tissues. Silencing periostin using siRNA transfection significantly attenuated TGF-β-induced profibrotic protein production and phosphorylated p38 and SMAD protein production. Knockdown of periostin inhibited interleukin-1 β -induced proinflammatory cytokines production as well as phosphorylation of NF-κB and Ak signaling protein. Adipocyte differentiation was also suppressed in periostin-targeting siRNA transfected GO cells. We hypothesize that periostin contributes to the pathogenic process of inflammation, fibrosis and adipogenesis of GO. Our study provides in vitro evidence that periostin may be a novel potential therapeutic target for the treatment of GO.
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Affiliation(s)
- Sun Young Jang
- Department of Ophthalmology, Soonchunhyang University Bucheon Hospital, Soonchunhyang University College of Medicine, Bucheon, South Korea
| | - Jinjoo Kim
- Department of Ophthalmology, Severance Hospital, Institute of Vision Research, Yonsei University College of Medicine, Seoul, South Korea
| | - Jung Tak Park
- Department of Internal Medicine, College of Medicine, Institute of Kidney Disease Research, Yonsei University, Seoul, South Korea
| | - Catherine Y. Liu
- Division of Oculofacial Plastic and Reconstructive Surgery, University of California, San Diego, La Jolla, CA, United States
| | - Bobby S. Korn
- Division of Oculofacial Plastic and Reconstructive Surgery, University of California, San Diego, La Jolla, CA, United States
| | - Don O. Kikkawa
- Division of Oculofacial Plastic and Reconstructive Surgery, University of California, San Diego, La Jolla, CA, United States
| | - Eun Jig Lee
- Division of Endocrinology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, South Korea
| | - Jin Sook Yoon
- Department of Ophthalmology, Severance Hospital, Institute of Vision Research, Yonsei University College of Medicine, Seoul, South Korea
- *Correspondence: Jin Sook Yoon,
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