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Wang W, Huo Y, Zhang J, Xu D, Bai F, Gui Y. Association between High-Fat Diet during Pregnancy and Heart Weight of the Offspring: A Multivariate and Mediation Analysis. Nutrients 2022; 14:4237. [PMID: 36296921 PMCID: PMC9609645 DOI: 10.3390/nu14204237] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2022] [Revised: 10/06/2022] [Accepted: 10/07/2022] [Indexed: 09/06/2023] Open
Abstract
Maternal nutrition and health status in the peri-pregnancy period are closely related to offspring health. Currently, population studies are unable to provide quantitative relationships and effective measures of peri-pregnancy high-fat diet and offspring myocardial remodeling due to the difficulty of obtaining human samples. This study aimed to establish the mouse models of maternal obesity and high-fat diet supplementation and deprivation during pregnancy. The effects of obesity, periconceptional high-fat diet window, fetal weight, sex, and placental weight on myocardial remodeling in the offspring were measured by single-factor and multiple-factor regression analyses. Moreover, the relationship between perinatal high-fat diet/fetal weight and offspring myocardial remodeling was explored using the mediation analysis model. The multivariate analysis showed that the heart weight to body weight (HW/BW) ratio of the offspring decreased by -1.6525 mg/g for every 1-g increase in fetal weight. The offspring HW/BW increased by 1.1967 mg/g if pregnant women were exposed to a high-fat diet throughout pregnancy. The mediation analysis model of a perinatal high-fat diet for the myocardial remodeling of offspring revealed that fetal weight had a suppression effect on the myocardial weight of offspring, accounting for 60.70%; also, it had a mediating effect on the HW/BW of offspring, accounting for 17.10%. Moreover, subgroup analysis showed an interaction between offspring sex and HW/BW in a maternal high-fat diet during pregnancy. Additionally, a quantitative real-time polymerase chain reaction experiment further proved that a perinatal high-fat diet could change the important indicators of myocardial remodeling in offspring. In conclusion, this study found that a high-fat diet in the periconceptional period influenced factors in offspring myocardial remodeling. Moreover, maternal high-fat diet deprivation attenuated the changes in offspring myocardial remodeling. In addition, the role of fetal weight in mediating maternal high-fat diet-mediated offspring myocardial remodeling was quantified. Our study showed that a sensible and healthy diet during the perinatal period, especially during pregnancy, played a positive role in the health of the offspring.
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Affiliation(s)
- Wenji Wang
- National Children’s Medical Center, Children’s Hospital, Fudan University, Shanghai 201102, China
- National Health Commission (NHC) Key Laboratory of Neonatal Diseases, Fudan University, Shanghai 201102, China
| | - Yu Huo
- National Children’s Medical Center, Children’s Hospital, Fudan University, Shanghai 201102, China
- National Health Commission (NHC) Key Laboratory of Neonatal Diseases, Fudan University, Shanghai 201102, China
| | - Jialing Zhang
- National Children’s Medical Center, Children’s Hospital, Fudan University, Shanghai 201102, China
- National Health Commission (NHC) Key Laboratory of Neonatal Diseases, Fudan University, Shanghai 201102, China
- Institute of Pediatrics, Children’s Hospital, Fudan University, Shanghai 201102, China
| | - Da Xu
- National Children’s Medical Center, Children’s Hospital, Fudan University, Shanghai 201102, China
- National Health Commission (NHC) Key Laboratory of Neonatal Diseases, Fudan University, Shanghai 201102, China
| | - Fan Bai
- National Children’s Medical Center, Children’s Hospital, Fudan University, Shanghai 201102, China
- National Health Commission (NHC) Key Laboratory of Neonatal Diseases, Fudan University, Shanghai 201102, China
| | - Yonghao Gui
- National Children’s Medical Center, Children’s Hospital, Fudan University, Shanghai 201102, China
- National Health Commission (NHC) Key Laboratory of Neonatal Diseases, Fudan University, Shanghai 201102, China
- Cardiovascular Center, Children’s Hospital of Fudan University, Shanghai 201102, China
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2
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Defining optimal enzyme and matrix combination for replating of human induced pluripotent stem cell-derived cardiomyocytes at different levels of maturity. Exp Cell Res 2021; 403:112599. [PMID: 33848551 DOI: 10.1016/j.yexcr.2021.112599] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 03/25/2021] [Accepted: 04/04/2021] [Indexed: 11/24/2022]
Abstract
Human induced pluripotent stem cell-derived cardiomyocytes (hiPSC-CM) create an unlimited cell source for basic and translational research. Depending on the maturity of cardiac cultures and the intended applications, obtaining hiPSC-CMs as a single-cell, monolayer or three-dimensional clusters can be challenging. Here, we defined strategies to replate hiPSC-CMs on early days (D15-30) or later more mature (D60-150) differentiation cultures. After generation of hiPSCs and derivation of cardiomyocytes, four dissociation reagents Collagenase A/B, Collagenase II, TrypLE, EDTA and five different extracellular matrix materials Laminin, iMatrix-511, Fibronectin, Matrigel, and Geltrex were comparatively evaluated by imaging, cell viability, and contraction analysis. For early cardiac differentiation cultures mimicking mostly the embryonic stage, the highest adhesion, cell viability, and beating frequencies were achieved by treatment with the TrypLE enzyme. Video-based contraction analysis demonstrated higher beating rates after replating compared to before treatment. For later differentiation days of more mature cardiac cultures, dissociation with EDTA and replating cells on Geltrex or Laminin-derivatives yielded better recovery. Cardiac clusters at various sizes were detected in several groups treated with collagenases. Collectively, our findings revealed the selection criteria of the dissociation approach and coating matrix for replating iPSC-CMs based on the maturity and the requirements of further downstream applications.
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Broadwell LJ, Smallegan MJ, Rigby KM, Navarro-Arriola JS, Montgomery RL, Rinn JL, Leinwand LA. Myosin 7b is a regulatory long noncoding RNA (lncMYH7b) in the human heart. J Biol Chem 2021; 296:100694. [PMID: 33895132 PMCID: PMC8141895 DOI: 10.1016/j.jbc.2021.100694] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2020] [Revised: 03/29/2021] [Accepted: 04/20/2021] [Indexed: 11/01/2022] Open
Abstract
Myosin heavy chain 7b (MYH7b) is an ancient member of the myosin heavy chain motor protein family that is expressed in striated muscles. In mammalian cardiac muscle, MYH7b RNA is expressed along with two other myosin heavy chains, β-myosin heavy chain (β-MyHC) and α-myosin heavy chain (α-MyHC). However, unlike β-MyHC and α-MyHC, which are maintained in a careful balance at the protein level, the MYH7b locus does not produce a full-length protein in the heart due to a posttranscriptional exon-skipping mechanism that occurs in a tissue-specific manner. Whether this locus has a role in the heart beyond producing its intronic microRNA, miR-499, was unclear. Using cardiomyocytes derived from human induced pluripotent stem cells as a model system, we found that the noncoding exon-skipped RNA (lncMYH7b) affects the transcriptional landscape of human cardiomyocytes, independent of miR-499. Specifically, lncMYH7b regulates the ratio of β-MyHC to α-MyHC, which is crucial for cardiac contractility. We also found that lncMYH7b regulates beat rate and sarcomere formation in cardiomyocytes. This regulation is likely achieved through control of a member of the TEA domain transcription factor family (TEAD3, which is known to regulate β-MyHC). Therefore, we conclude that this ancient gene has been repurposed by alternative splicing to produce a regulatory long-noncoding RNA in the human heart that affects cardiac myosin composition.
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Affiliation(s)
- Lindsey J Broadwell
- Department of Biochemistry, CU Boulder, Boulder, Colorado, USA; BioFrontiers Institute, CU Boulder, Boulder, Colorado, USA
| | - Michael J Smallegan
- BioFrontiers Institute, CU Boulder, Boulder, Colorado, USA; Department of Molecular, Cellular, and Developmental Biology, CU Boulder, Boulder, Colorado, USA
| | | | - Jose S Navarro-Arriola
- Department of Molecular, Cellular, and Developmental Biology, CU Boulder, Boulder, Colorado, USA
| | | | - John L Rinn
- Department of Biochemistry, CU Boulder, Boulder, Colorado, USA; BioFrontiers Institute, CU Boulder, Boulder, Colorado, USA
| | - Leslie A Leinwand
- BioFrontiers Institute, CU Boulder, Boulder, Colorado, USA; Department of Molecular, Cellular, and Developmental Biology, CU Boulder, Boulder, Colorado, USA.
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4
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Kuroda G, Sasaki S, Matsushita A, Ohba K, Sakai Y, Shinkai S, Nakamura HM, Yamagishi S, Sato K, Hirahara N, Oki Y, Ito M, Suzuki T, Suda T. G ATA2 mediates the negative regulation of the prepro-thyrotropin-releasing hormone gene by liganded T3 receptor β2 in the rat hypothalamic paraventricular nucleus. PLoS One 2020; 15:e0242380. [PMID: 33201916 PMCID: PMC7671546 DOI: 10.1371/journal.pone.0242380] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Accepted: 10/31/2020] [Indexed: 12/25/2022] Open
Abstract
Thyroid hormone (T3) inhibits thyrotropin-releasing hormone (TRH) synthesis in the hypothalamic paraventricular nucleus (PVN). Although the T3 receptor (TR) β2 is known to mediate the negative regulation of the prepro-TRH gene, its molecular mechanism remains unknown. Our previous studies on the T3-dependent negative regulation of the thyrotropin β subunit (TSHβ) gene suggest that there is a tethering mechanism, whereby liganded TRβ2 interferes with the function of the transcription factor, GATA2, a critical activator of the TSHβ gene. Interestingly, the transcription factors Sim1 and Arnt2, the determinants of PVN differentiation in the hypothalamus, are reported to induce expression of TRβ2 and GATA2 in cultured neuronal cells. Here, we confirmed the expression of the GATA2 protein in the TRH neuron of the rat PVN using immunohistochemistry with an anti-GATA2 antibody. According to an experimental study from transgenic mice, a region of the rat prepro-TRH promoter from nt. -547 to nt. +84 was able to mediate its expression in the PVN. We constructed a chloramphenicol acetyltransferase (CAT) reporter gene containing this promoter sequence (rTRH(547)-CAT) and showed that GATA2 activated the promoter in monkey kidney-derived CV1 cells. Deletion and mutation analyses identified a functional GATA-responsive element (GATA-RE) between nt. -357 and nt. -352. When TRβ2 was co-expressed, T3 reduced GATA2-dependent promoter activity to approximately 30%. Unexpectedly, T3-dependent negative regulation was maintained after mutation of the reported negative T3-responsive element, site 4. T3 also inhibited the GATA2-dependent transcription enhanced by cAMP agonist, 8-bromo-cAMP. A rat thyroid medullary carcinoma cell line, CA77, is known to express the preproTRH mRNA. Using a chromatin immunoprecipitation assay with this cell line where GATA2 expression plasmid was transfected, we observed the recognition of the GATA-RE by GATA2. We also confirmed GATA2 binding using gel shift assay with the probe for the GATA-RE. In CA77 cells, the activity of rTRH(547)-CAT was potentiated by overexpression of GATA2, and it was inhibited in a T3-dependent manner. These results suggest that GATA2 transactivates the rat prepro-TRH gene and that liganded TRβ2 interferes with this activation via a tethering mechanism as in the case of the TSHβ gene.
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Affiliation(s)
- Go Kuroda
- Second Division, Department of Internal Medicine, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan
| | - Shigekazu Sasaki
- Second Division, Department of Internal Medicine, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan
- * E-mail:
| | - Akio Matsushita
- Second Division, Department of Internal Medicine, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan
| | - Kenji Ohba
- Medical Education Center, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan
| | - Yuki Sakai
- Second Division, Department of Internal Medicine, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan
| | - Shinsuke Shinkai
- Second Division, Department of Internal Medicine, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan
| | - Hiroko Misawa Nakamura
- Second Division, Department of Internal Medicine, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan
| | - Satoru Yamagishi
- Department of Organ and Tissue Anatomy, Hamamatsu University School of Medicine, Hamamatsu, Hamamatsu, Shizuoka, Japan
| | - Kohji Sato
- Department of Organ and Tissue Anatomy, Hamamatsu University School of Medicine, Hamamatsu, Hamamatsu, Shizuoka, Japan
| | - Naoko Hirahara
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Japanese Red Cross Shizuoka Hospital, Shizuoka, Shizuoka, Japan
| | - Yutaka Oki
- Department of Internal medicine, Hamamatsu Kita Hospital, Hamamatsu, Shizuoka, Japan
| | - Masahiko Ito
- Department of Virology and Parasitology, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan
| | - Tetsuro Suzuki
- Department of Virology and Parasitology, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan
| | - Takafumi Suda
- Second Division, Department of Internal Medicine, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan
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Giammanco M, Di Liegro CM, Schiera G, Di Liegro I. Genomic and Non-Genomic Mechanisms of Action of Thyroid Hormones and Their Catabolite 3,5-Diiodo-L-Thyronine in Mammals. Int J Mol Sci 2020; 21:ijms21114140. [PMID: 32532017 PMCID: PMC7312989 DOI: 10.3390/ijms21114140] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2020] [Revised: 06/05/2020] [Accepted: 06/08/2020] [Indexed: 02/06/2023] Open
Abstract
Since the realization that the cellular homologs of a gene found in the retrovirus that contributes to erythroblastosis in birds (v-erbA), i.e. the proto-oncogene c-erbA encodes the nuclear receptors for thyroid hormones (THs), most of the interest for THs focalized on their ability to control gene transcription. It was found, indeed, that, by regulating gene expression in many tissues, these hormones could mediate critical events both in development and in adult organisms. Among their effects, much attention was given to their ability to increase energy expenditure, and they were early proposed as anti-obesity drugs. However, their clinical use has been strongly challenged by the concomitant onset of toxic effects, especially on the heart. Notably, it has been clearly demonstrated that, besides their direct action on transcription (genomic effects), THs also have non-genomic effects, mediated by cell membrane and/or mitochondrial binding sites, and sometimes triggered by their endogenous catabolites. Among these latter molecules, 3,5-diiodo-L-thyronine (3,5-T2) has been attracting increasing interest because some of its metabolic effects are similar to those induced by T3, but it seems to be safer. The main target of 3,5-T2 appears to be the mitochondria, and it has been hypothesized that, by acting mainly on mitochondrial function and oxidative stress, 3,5-T2 might prevent and revert tissue damages and hepatic steatosis induced by a hyper-lipid diet, while concomitantly reducing the circulating levels of low density lipoproteins (LDL) and triglycerides. Besides a summary concerning general metabolism of THs, as well as their genomic and non-genomic effects, herein we will discuss resistance to THs and the possible mechanisms of action of 3,5-T2, also in relation to its possible clinical use as a drug.
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Affiliation(s)
- Marco Giammanco
- Department of Surgical, Oncological and Oral Sciences (Discipline Chirurgiche, Oncologiche e Stomatologiche), University of Palermo, 90127 Palermo, Italy;
| | - Carlo Maria Di Liegro
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche (STEBICEF)), University of Palermo, 90128 Palermo, Italy; (C.M.D.L.); (G.S.)
| | - Gabriella Schiera
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche (STEBICEF)), University of Palermo, 90128 Palermo, Italy; (C.M.D.L.); (G.S.)
| | - Italia Di Liegro
- Department of Biomedicine, Neurosciences and Advanced Diagnostics (Dipartimento di Biomedicina, Neuroscienze e Diagnostica avanzata (Bi.N.D.)), University of Palermo, 90127 Palermo, Italy
- Correspondence: ; Tel.: +39-091-2389-7415 or +39-091-2389-7446
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6
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Hirahara N, Nakamura HM, Sasaki S, Matsushita A, Ohba K, Kuroda G, Sakai Y, Shinkai S, Haeno H, Nishio T, Yoshida S, Oki Y, Suda T. Liganded T3 receptor β2 inhibits the positive feedback autoregulation of the gene for GATA2, a transcription factor critical for thyrotropin production. PLoS One 2020; 15:e0227646. [PMID: 31940421 PMCID: PMC6961892 DOI: 10.1371/journal.pone.0227646] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Accepted: 12/23/2019] [Indexed: 12/26/2022] Open
Abstract
The serum concentration of thyrotropin (thyroid stimulating hormone, TSH) is drastically reduced by small increase in the levels of thyroid hormones (T3 and its prohormone, T4); however, the mechanism underlying this relationship is unknown. TSH consists of the chorionic gonadotropin α (CGA) and the β chain (TSHβ). The expression of both peptides is induced by the transcription factor GATA2, a determinant of the thyrotroph and gonadotroph differentiation in the pituitary. We previously reported that the liganded T3 receptor (TR) inhibits transactivation activity of GATA2 via a tethering mechanism and proposed that this mechanism, but not binding of TR with a negative T3-responsive element, is the basis for the T3-dependent inhibition of the TSHβ and CGA genes. Multiple GATA-responsive elements (GATA-REs) also exist within the GATA2 gene itself and mediate the positive feedback autoregulation of this gene. To elucidate the effect of T3 on this non-linear regulation, we fused the GATA-REs at -3.9 kb or +9.5 kb of the GATA2 gene with the chloramphenicol acetyltransferase reporter gene harbored in its 1S-promoter. These constructs were co-transfected with the expression plasmids for GATA2 and the pituitary specific TR, TRβ2, into kidney-derived CV1 cells. We found that liganded TRβ2 represses the GATA2-induced transactivation of these reporter genes. Multi-dimensional input function theory revealed that liganded TRβ2 functions as a classical transcriptional repressor. Then, we investigated the effect of T3 on the endogenous expression of GATA2 protein and mRNA in the gonadotroph-derived LβT2 cells. In this cell line, T3 reduced GATA2 protein independently of the ubiquitin proteasome system. GATA2 mRNA was drastically suppressed by T3, the concentration of which corresponds to moderate hypothyroidism and euthyroidism. These results suggest that liganded TRβ2 inhibits the positive feedback autoregulation of the GATA2 gene; moreover this mechanism plays an important role in the potent reduction of TSH production by T3.
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Affiliation(s)
- Naoko Hirahara
- Division of Endocrinology and Metabolism, Department of Internal medicine, Japanese Red Cross Shizuoka Hospital, Shizuoka, Shizuoka, Japan
| | - Hiroko Misawa Nakamura
- Second Division, Department of Internal Medicine, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan
| | - Shigekazu Sasaki
- Second Division, Department of Internal Medicine, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan
- * E-mail:
| | - Akio Matsushita
- Second Division, Department of Internal Medicine, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan
| | - Kenji Ohba
- Medical Education Center, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan
| | - Go Kuroda
- Second Division, Department of Internal Medicine, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan
| | - Yuki Sakai
- Second Division, Department of Internal Medicine, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan
| | - Shinsuke Shinkai
- Second Division, Department of Internal Medicine, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan
| | - Hiroshi Haeno
- Department of Computational Biology and Medical Sciences, Graduate School of Frontier Sciences, The University of Tokyo Kashiwa, Kashiwa, Chiba, Japan
| | - Takuhiro Nishio
- Department of Integrated Human Sciences, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan
| | - Shuichi Yoshida
- Department of Integrated Human Sciences, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan
| | - Yutaka Oki
- Department of Family and Community Medicine, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan
| | - Takafumi Suda
- Second Division, Department of Internal Medicine, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan
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7
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Ucci S, Renzini A, Russi V, Mangialardo C, Cammarata I, Cavioli G, Santaguida MG, Virili C, Centanni M, Adamo S, Moresi V, Verga-Falzacappa C. Thyroid Hormone Protects from Fasting-Induced Skeletal Muscle Atrophy by Promoting Metabolic Adaptation. Int J Mol Sci 2019; 20:ijms20225754. [PMID: 31731814 PMCID: PMC6888244 DOI: 10.3390/ijms20225754] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Revised: 11/11/2019] [Accepted: 11/12/2019] [Indexed: 02/07/2023] Open
Abstract
Thyroid hormones regulate a wide range of cellular responses, via non-genomic and genomic actions, depending on cell-specific thyroid hormone transporters, co-repressors, or co-activators. Skeletal muscle has been identified as a direct target of thyroid hormone T3, where it regulates stem cell proliferation and differentiation, as well as myofiber metabolism. However, the effects of T3 in muscle-wasting conditions have not been yet addressed. Being T3 primarily responsible for the regulation of metabolism, we challenged mice with fasting and found that T3 counteracted starvation-induced muscle atrophy. Interestingly, T3 did not prevent the activation of the main catabolic pathways, i.e., the ubiquitin-proteasome or the autophagy-lysosomal systems, nor did it stimulate de novo muscle synthesis in starved muscles. Transcriptome analyses revealed that T3 mainly affected the metabolic processes in starved muscle. Further analyses of myofiber metabolism revealed that T3 prevented the starvation-mediated metabolic shift, thus preserving skeletal muscle mass. Our study elucidated new T3 functions in regulating skeletal muscle homeostasis and metabolism in pathological conditions, opening to new potential therapeutic approaches for the treatment of skeletal muscle atrophy.
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Affiliation(s)
- Sarassunta Ucci
- Pasteur Institute, 00161 Rome, Italy; (S.U.); (V.R.); (C.M.); (I.C.); (C.V.-F.)
| | - Alessandra Renzini
- DAHFMO Unit of Histology and Medical Embryology, Interuniversity Institute of Myology, Sapienza University of Rome, 00161 Rome, Italy; (A.R.); (G.C.); (S.A.)
| | - Valentina Russi
- Pasteur Institute, 00161 Rome, Italy; (S.U.); (V.R.); (C.M.); (I.C.); (C.V.-F.)
| | - Claudia Mangialardo
- Pasteur Institute, 00161 Rome, Italy; (S.U.); (V.R.); (C.M.); (I.C.); (C.V.-F.)
| | - Ilenia Cammarata
- Pasteur Institute, 00161 Rome, Italy; (S.U.); (V.R.); (C.M.); (I.C.); (C.V.-F.)
| | - Giorgia Cavioli
- DAHFMO Unit of Histology and Medical Embryology, Interuniversity Institute of Myology, Sapienza University of Rome, 00161 Rome, Italy; (A.R.); (G.C.); (S.A.)
| | - Maria Giulia Santaguida
- Department of Medico-Surgical Sciences and Biotechnologies Sapienza University of Rome, 04100 Latina, Italy; (M.G.S.); (C.V.); (M.C.)
| | - Camilla Virili
- Department of Medico-Surgical Sciences and Biotechnologies Sapienza University of Rome, 04100 Latina, Italy; (M.G.S.); (C.V.); (M.C.)
| | - Marco Centanni
- Department of Medico-Surgical Sciences and Biotechnologies Sapienza University of Rome, 04100 Latina, Italy; (M.G.S.); (C.V.); (M.C.)
| | - Sergio Adamo
- DAHFMO Unit of Histology and Medical Embryology, Interuniversity Institute of Myology, Sapienza University of Rome, 00161 Rome, Italy; (A.R.); (G.C.); (S.A.)
| | - Viviana Moresi
- DAHFMO Unit of Histology and Medical Embryology, Interuniversity Institute of Myology, Sapienza University of Rome, 00161 Rome, Italy; (A.R.); (G.C.); (S.A.)
- Correspondence:
| | - Cecilia Verga-Falzacappa
- Pasteur Institute, 00161 Rome, Italy; (S.U.); (V.R.); (C.M.); (I.C.); (C.V.-F.)
- Department of Medico-Surgical Sciences and Biotechnologies Sapienza University of Rome, 04100 Latina, Italy; (M.G.S.); (C.V.); (M.C.)
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8
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Enhancement of human iPSC-derived cardiomyocyte maturation by chemical conditioning in a 3D environment. J Mol Cell Cardiol 2019; 138:1-11. [PMID: 31655038 DOI: 10.1016/j.yjmcc.2019.10.001] [Citation(s) in RCA: 70] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Revised: 09/30/2019] [Accepted: 10/06/2019] [Indexed: 12/18/2022]
Abstract
Recent advances in the understanding and use of pluripotent stem cells have produced major changes in approaches to the diagnosis and treatment of human disease. An obstacle to the use of human induced pluripotent stem cell-derived cardiomyocytes (hiPSC-CMs) for regenerative medicine, disease modeling and drug discovery is their immature state relative to adult myocardium. We show the effects of a combination of biochemical factors, thyroid hormone, dexamethasone, and insulin-like growth factor-1 (TDI) on the maturation of hiPSC-CMs in 3D cardiac microtissues (CMTs) that recapitulate aspects of the native myocardium. Based on a comparison of the gene expression profiles and the structural, ultrastructural, and electrophysiological properties of hiPSC-CMs in monolayers and CMTs, and measurements of the mechanical and pharmacological properties of CMTs, we find that TDI treatment in a 3D tissue context yields a higher fidelity adult cardiac phenotype, including sarcoplasmic reticulum function and contractile properties consistent with promotion of the maturation of hiPSC derived cardiomyocytes.
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9
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Honda M, Tsuchimochi H, Hitachi K, Ohno S. Transcriptional cofactor Vgll2 is required for functional adaptations of skeletal muscle induced by chronic overload. J Cell Physiol 2019; 234:15809-15824. [PMID: 30724341 DOI: 10.1002/jcp.28239] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Revised: 01/11/2019] [Accepted: 01/16/2019] [Indexed: 02/07/2023]
Abstract
Skeletal muscle is composed of heterogeneous populations of myofibers classified as slow- and fast-twitch fibers. Myofiber size and composition are drastically changed in response to physiological demands. We previously showed that transcriptional cofactor vestigial-like (Vgll) 2 is a pivotal regulator of slow muscle gene programming under sedentary conditions. However, whether Vgll2 is required for skeletal muscle adaptations after chronic overload is unclear. Therefore, we investigated the role of Vgll2 in chronic overload-inducing skeletal muscle adaptations using synergist ablation (SA) on plantaris. We found that Vgll2 is an essential regulator of the switch towards a slow-contractile phenotype and oxidative metabolism during chronic overload. Mice lacking Vgll2 exhibited limited fiber type transition and downregulation of genes related to lactate metabolism and their regulator peroxisome proliferator-activated receptor gamma coactivator 1α1, after SA, was augmented in Vgll2-deficient mice compared with in wild-type mice. Mechanistically, increased muscle usage elevated Vgll2 levels and promoted the interaction between Vgll2 and its transcription partners such as TEA domain1 (TEAD1), MEF2c, and NFATc1. Calcium ionophore treatment promoted nuclear translocation of Vgll2 and increased TEAD-dependent MYH7 promotor activity in a Vgll2-dependent manner. Taken together, these data demonstrate that Vgll2 plays an important role for functional adaptation of skeletal muscle to chronic overload.
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Affiliation(s)
- Masahiko Honda
- Department of Bioscience and Genetics, National Cerebral and Cardiovascular Center Research Institute, Suita, Osaka, Japan
| | - Hirotsugu Tsuchimochi
- Department of Cardiac Physiology, National Cerebral and Cardiovascular Centre Research Institute, Suita, Osaka, Japan
| | - Keisuke Hitachi
- Division for Therapies against Intractable Diseases, Institute for Comprehensive Medical Science, Fujita Health University, Toyoake, Japan
| | - Seiko Ohno
- Department of Bioscience and Genetics, National Cerebral and Cardiovascular Center Research Institute, Suita, Osaka, Japan
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Liu R, Jagannathan R, Li F, Lee J, Balasubramanyam N, Kim BS, Yang P, Yechoor VK, Moulik M. Tead1 is required for perinatal cardiomyocyte proliferation. PLoS One 2019; 14:e0212017. [PMID: 30811446 PMCID: PMC6392249 DOI: 10.1371/journal.pone.0212017] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Accepted: 01/25/2019] [Indexed: 01/05/2023] Open
Abstract
Adult heart size is determined predominantly by the cardiomyocyte number and size. The cardiomyocyte number is determined primarily in the embryonic and perinatal period, as adult cardiomyocyte proliferation is restricted in comparison to that seen during the perinatal period. Recent evidence has implicated the mammalian Hippo kinase pathway as being critical in cardiomyocyte proliferation. Though the transcription factor, Tead1, is the canonical downstream transcriptional factor of the hippo kinase pathway in cardiomyocytes, the specific role of Tead1 in cardiomyocyte proliferation in the perinatal period has not been determined. Here, we report the generation of a cardiomyocyte specific perinatal deletion of Tead1, using Myh6-Cre deletor mice (Tead1-cKO). Perinatal Tead1 deletion was lethal by postnatal day 9 in Tead1-cKO mice due to dilated cardiomyopathy. Tead1-deficient cardiomyocytes have significantly decreased proliferation during the immediate postnatal period, when proliferation rate is normally high. Deletion of Tead1 in HL-1 cardiac cell line confirmed that cell-autonomous Tead1 function is required for normal cardiomyocyte proliferation. This was secondary to significant decrease in levels of many proteins, in vivo, that normally promote cell cycle in cardiomyocytes. Taken together this demonstrates the non-redundant critical requirement for Tead1 in regulating cell cycle proteins and proliferation in cardiomyocytes in the perinatal heart.
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Affiliation(s)
- Ruya Liu
- Division of Diabetes, Endocrinology and Metabolism, Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
- Division of Diabetes, Endocrinology and Metabolism, Department of Medicine, Baylor College of Medicine, Houston, Texas, United States of America
| | - Rajaganapathi Jagannathan
- Division of Cardiology, Department of Pediatrics, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
| | - Feng Li
- Division of Diabetes, Endocrinology and Metabolism, Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
| | - Jeongkyung Lee
- Division of Diabetes, Endocrinology and Metabolism, Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
- Division of Diabetes, Endocrinology and Metabolism, Department of Medicine, Baylor College of Medicine, Houston, Texas, United States of America
| | - Nikhil Balasubramanyam
- Division of Diabetes, Endocrinology and Metabolism, Department of Medicine, Baylor College of Medicine, Houston, Texas, United States of America
| | - Byung S. Kim
- Division of Diabetes, Endocrinology and Metabolism, Department of Medicine, Baylor College of Medicine, Houston, Texas, United States of America
| | - Ping Yang
- Division of Diabetes, Endocrinology and Metabolism, Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
| | - Vijay K. Yechoor
- Division of Diabetes, Endocrinology and Metabolism, Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
- Division of Diabetes, Endocrinology and Metabolism, Department of Medicine, Baylor College of Medicine, Houston, Texas, United States of America
| | - Mousumi Moulik
- Division of Cardiology, Department of Pediatrics, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
- Division of Cardiology, Department of Pediatrics, UTHealth McGovern Medical School, Houston, Texas, United States of America
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11
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Semantic Multi-Classifier Systems Identify Predictive Processes in Heart Failure Models across Species. Biomolecules 2018; 8:biom8040158. [PMID: 30486323 PMCID: PMC6315933 DOI: 10.3390/biom8040158] [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: 09/20/2018] [Revised: 11/21/2018] [Accepted: 11/21/2018] [Indexed: 11/29/2022] Open
Abstract
Genetic model organisms have the potential of removing blind spots from the underlying gene regulatory networks of human diseases. Allowing analyses under experimental conditions they complement the insights gained from observational data. An inevitable requirement for a successful trans-species transfer is an abstract but precise high-level characterization of experimental findings. In this work, we provide a large-scale analysis of seven weak contractility/heart failure genotypes of the model organism zebrafish which all share a weak contractility phenotype. In supervised classification experiments, we screen for discriminative patterns that distinguish between observable phenotypes (homozygous mutant individuals) as well as wild-type (homozygous wild-types) and carriers (heterozygous individuals). As the method of choice we use semantic multi-classifier systems, a knowledge-based approach which constructs hypotheses from a predefined vocabulary of high-level terms (e.g., Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways or Gene Ontology (GO) terms). Evaluating these models leads to a compact description of the underlying processes and guides the screening for new molecular markers of heart failure. Furthermore, we were able to independently corroborate the identified processes in Wistar rats.
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Sasaki S, Matsushita A, Kuroda G, Nakamura HM, Oki Y, Suda T. The Mechanism of Negative Transcriptional Regulation by Thyroid Hormone: Lessons From the Thyrotropin β Subunit Gene. VITAMINS AND HORMONES 2017; 106:97-127. [PMID: 29407449 DOI: 10.1016/bs.vh.2017.06.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Thyroid hormone (T3) activates (positive regulation) or represses (negative regulation) target genes at the transcriptional level. The molecular mechanism of the former has been elucidated in detail; however, the mechanism for negative regulation has not been established. The best example of the gene that is negatively regulated by T3 is the thyrotropin (thyroid-stimulating hormone) β subunit (TSHβ) gene. Analogous to the T3-responsive element (TRE) in positive regulation, a negative TRE (nTRE) has been postulated in the TSHβ gene. However, TSHβ promoter analysis, performed in the presence of transcription factors Pit1 and GATA2, which are determinants of thyrotroph differentiation in the pituitary, revealed that the nTRE is dispensable for inhibition by T3. We propose a tethering model in which the T3 receptor is tethered to GATA2 via protein-protein interaction and inhibits GATA2-dependent transactivation of the TSHβ gene in a T3-dependent manner.
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Affiliation(s)
| | | | - Go Kuroda
- Hamamatsu University School of Medicine, Shizuoka, Japan
| | | | - Yutaka Oki
- Hamamatsu University School of Medicine, Shizuoka, Japan
| | - Takafumi Suda
- Hamamatsu University School of Medicine, Shizuoka, Japan
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13
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Ohba K, Leow MKS, Singh BK, Sinha RA, Lesmana R, Liao XH, Ghosh S, Refetoff S, Sng JCG, Yen PM. Desensitization and Incomplete Recovery of Hepatic Target Genes After Chronic Thyroid Hormone Treatment and Withdrawal in Male Adult Mice. Endocrinology 2016; 157:1660-72. [PMID: 26866609 PMCID: PMC4816733 DOI: 10.1210/en.2015-1848] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Clinical symptoms may vary and not necessarily reflect serum thyroid hormone (TH) levels during acute and chronic hyperthyroidism as well as recovery from hyperthyroidism. We thus examined changes in hepatic gene expression and serum TH/TSH levels in adult male mice treated either with a single T3 (20 μg per 100 g body weight) injection (acute T3) or daily injections for 14 days (chronic T3) followed by 10 days of withdrawal. Gene expression arrays from livers harvested at these time points showed that among positively-regulated target genes, 320 were stimulated acutely and 429 chronically by T3. Surprisingly, only 69 of 680 genes (10.1%) were induced during both periods, suggesting desensitization of the majority of acutely stimulated target genes. About 90% of positively regulated target genes returned to baseline expression levels after 10 days of withdrawal; however, 67 of 680 (9.9%) did not return to baseline despite normalization of serum TH/TSH levels. Similar findings also were observed for negatively regulated target genes. Chromatin immunoprecipitation analysis of representative positively regulated target genes suggested that acetylation of H3K9/K14 was associated with acute stimulation, whereas trimethylation of H3K4 was associated with chronic stimulation. In an in vivo model of chronic intrahepatic hyperthyroidism since birth, adult male monocarboxylate transporter-8 knockout mice also demonstrated desensitization of most acutely stimulated target genes that were examined. In summary, we have identified transcriptional desensitization and incomplete recovery of gene expression during chronic hyperthyroidism and recovery. Our findings may be a potential reason for discordance between clinical symptoms and serum TH levels observed in these conditions.
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Affiliation(s)
- Kenji Ohba
- Cardiovascular and Metabolic Disorders Program (K.O., B.K.S., R.A.S., R.L., S.G., P.M.Y.), Duke-NUS Medical School, Singapore, Singapore 169857; Department of Endocrinology (M.K.-S.L.), Tan Tock Seng Hospital, Singapore, Singapore 229899; Singapore Institute for Clinical Sciences (M.K.-S.L.), Agency for Science, Technology and Research (A*STAR), Singapore, Singapore 117609; Department of Physiology (R.L.), Universitas Padjadjaran, Bandung, West Java 45363, Indonesia; Departments of Medicine (X.-H.L., S.R.) and Pediatrics and Committee on Genetics (S.R.), The University of Chicago, Chicago, Illinois 60637; and Department of Pharmacology (J.C.G.S.), Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore 119228
| | - Melvin Khee-Shing Leow
- Cardiovascular and Metabolic Disorders Program (K.O., B.K.S., R.A.S., R.L., S.G., P.M.Y.), Duke-NUS Medical School, Singapore, Singapore 169857; Department of Endocrinology (M.K.-S.L.), Tan Tock Seng Hospital, Singapore, Singapore 229899; Singapore Institute for Clinical Sciences (M.K.-S.L.), Agency for Science, Technology and Research (A*STAR), Singapore, Singapore 117609; Department of Physiology (R.L.), Universitas Padjadjaran, Bandung, West Java 45363, Indonesia; Departments of Medicine (X.-H.L., S.R.) and Pediatrics and Committee on Genetics (S.R.), The University of Chicago, Chicago, Illinois 60637; and Department of Pharmacology (J.C.G.S.), Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore 119228
| | - Brijesh Kumar Singh
- Cardiovascular and Metabolic Disorders Program (K.O., B.K.S., R.A.S., R.L., S.G., P.M.Y.), Duke-NUS Medical School, Singapore, Singapore 169857; Department of Endocrinology (M.K.-S.L.), Tan Tock Seng Hospital, Singapore, Singapore 229899; Singapore Institute for Clinical Sciences (M.K.-S.L.), Agency for Science, Technology and Research (A*STAR), Singapore, Singapore 117609; Department of Physiology (R.L.), Universitas Padjadjaran, Bandung, West Java 45363, Indonesia; Departments of Medicine (X.-H.L., S.R.) and Pediatrics and Committee on Genetics (S.R.), The University of Chicago, Chicago, Illinois 60637; and Department of Pharmacology (J.C.G.S.), Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore 119228
| | - Rohit Anthony Sinha
- Cardiovascular and Metabolic Disorders Program (K.O., B.K.S., R.A.S., R.L., S.G., P.M.Y.), Duke-NUS Medical School, Singapore, Singapore 169857; Department of Endocrinology (M.K.-S.L.), Tan Tock Seng Hospital, Singapore, Singapore 229899; Singapore Institute for Clinical Sciences (M.K.-S.L.), Agency for Science, Technology and Research (A*STAR), Singapore, Singapore 117609; Department of Physiology (R.L.), Universitas Padjadjaran, Bandung, West Java 45363, Indonesia; Departments of Medicine (X.-H.L., S.R.) and Pediatrics and Committee on Genetics (S.R.), The University of Chicago, Chicago, Illinois 60637; and Department of Pharmacology (J.C.G.S.), Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore 119228
| | - Ronny Lesmana
- Cardiovascular and Metabolic Disorders Program (K.O., B.K.S., R.A.S., R.L., S.G., P.M.Y.), Duke-NUS Medical School, Singapore, Singapore 169857; Department of Endocrinology (M.K.-S.L.), Tan Tock Seng Hospital, Singapore, Singapore 229899; Singapore Institute for Clinical Sciences (M.K.-S.L.), Agency for Science, Technology and Research (A*STAR), Singapore, Singapore 117609; Department of Physiology (R.L.), Universitas Padjadjaran, Bandung, West Java 45363, Indonesia; Departments of Medicine (X.-H.L., S.R.) and Pediatrics and Committee on Genetics (S.R.), The University of Chicago, Chicago, Illinois 60637; and Department of Pharmacology (J.C.G.S.), Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore 119228
| | - Xiao-Hui Liao
- Cardiovascular and Metabolic Disorders Program (K.O., B.K.S., R.A.S., R.L., S.G., P.M.Y.), Duke-NUS Medical School, Singapore, Singapore 169857; Department of Endocrinology (M.K.-S.L.), Tan Tock Seng Hospital, Singapore, Singapore 229899; Singapore Institute for Clinical Sciences (M.K.-S.L.), Agency for Science, Technology and Research (A*STAR), Singapore, Singapore 117609; Department of Physiology (R.L.), Universitas Padjadjaran, Bandung, West Java 45363, Indonesia; Departments of Medicine (X.-H.L., S.R.) and Pediatrics and Committee on Genetics (S.R.), The University of Chicago, Chicago, Illinois 60637; and Department of Pharmacology (J.C.G.S.), Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore 119228
| | - Sujoy Ghosh
- Cardiovascular and Metabolic Disorders Program (K.O., B.K.S., R.A.S., R.L., S.G., P.M.Y.), Duke-NUS Medical School, Singapore, Singapore 169857; Department of Endocrinology (M.K.-S.L.), Tan Tock Seng Hospital, Singapore, Singapore 229899; Singapore Institute for Clinical Sciences (M.K.-S.L.), Agency for Science, Technology and Research (A*STAR), Singapore, Singapore 117609; Department of Physiology (R.L.), Universitas Padjadjaran, Bandung, West Java 45363, Indonesia; Departments of Medicine (X.-H.L., S.R.) and Pediatrics and Committee on Genetics (S.R.), The University of Chicago, Chicago, Illinois 60637; and Department of Pharmacology (J.C.G.S.), Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore 119228
| | - Samuel Refetoff
- Cardiovascular and Metabolic Disorders Program (K.O., B.K.S., R.A.S., R.L., S.G., P.M.Y.), Duke-NUS Medical School, Singapore, Singapore 169857; Department of Endocrinology (M.K.-S.L.), Tan Tock Seng Hospital, Singapore, Singapore 229899; Singapore Institute for Clinical Sciences (M.K.-S.L.), Agency for Science, Technology and Research (A*STAR), Singapore, Singapore 117609; Department of Physiology (R.L.), Universitas Padjadjaran, Bandung, West Java 45363, Indonesia; Departments of Medicine (X.-H.L., S.R.) and Pediatrics and Committee on Genetics (S.R.), The University of Chicago, Chicago, Illinois 60637; and Department of Pharmacology (J.C.G.S.), Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore 119228
| | - Judy Chia Ghee Sng
- Cardiovascular and Metabolic Disorders Program (K.O., B.K.S., R.A.S., R.L., S.G., P.M.Y.), Duke-NUS Medical School, Singapore, Singapore 169857; Department of Endocrinology (M.K.-S.L.), Tan Tock Seng Hospital, Singapore, Singapore 229899; Singapore Institute for Clinical Sciences (M.K.-S.L.), Agency for Science, Technology and Research (A*STAR), Singapore, Singapore 117609; Department of Physiology (R.L.), Universitas Padjadjaran, Bandung, West Java 45363, Indonesia; Departments of Medicine (X.-H.L., S.R.) and Pediatrics and Committee on Genetics (S.R.), The University of Chicago, Chicago, Illinois 60637; and Department of Pharmacology (J.C.G.S.), Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore 119228
| | - Paul Michael Yen
- Cardiovascular and Metabolic Disorders Program (K.O., B.K.S., R.A.S., R.L., S.G., P.M.Y.), Duke-NUS Medical School, Singapore, Singapore 169857; Department of Endocrinology (M.K.-S.L.), Tan Tock Seng Hospital, Singapore, Singapore 229899; Singapore Institute for Clinical Sciences (M.K.-S.L.), Agency for Science, Technology and Research (A*STAR), Singapore, Singapore 117609; Department of Physiology (R.L.), Universitas Padjadjaran, Bandung, West Java 45363, Indonesia; Departments of Medicine (X.-H.L., S.R.) and Pediatrics and Committee on Genetics (S.R.), The University of Chicago, Chicago, Illinois 60637; and Department of Pharmacology (J.C.G.S.), Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore 119228
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14
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Matsunaga H, Sasaki S, Suzuki S, Matsushita A, Nakamura H, Nakamura HM, Hirahara N, Kuroda G, Iwaki H, Ohba K, Morita H, Oki Y, Suda T. Essential Role of GATA2 in the Negative Regulation of Type 2 Deiodinase Gene by Liganded Thyroid Hormone Receptor β2 in Thyrotroph. PLoS One 2015; 10:e0142400. [PMID: 26571013 PMCID: PMC4646574 DOI: 10.1371/journal.pone.0142400] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2015] [Accepted: 10/21/2015] [Indexed: 12/30/2022] Open
Abstract
The inhibition of thyrotropin (thyroid stimulating hormone; TSH) by thyroid hormone (T3) and its receptor (TR) is the central mechanism of the hypothalamus-pituitary-thyroid axis. Two transcription factors, GATA2 and Pit-1, determine thyrotroph differentiation and maintain the expression of the β subunit of TSH (TSHβ). We previously reported that T3-dependent repression of the TSHβ gene is mediated by GATA2 but not by the reported negative T3-responsive element (nTRE). In thyrotrophs, T3 also represses mRNA of the type-2 deiodinase (D2) gene, where no nTRE has been identified. Here, the human D2 promoter fused to the CAT or modified Renilla luciferase gene was co-transfected with Pit-1 and/or GATA2 expression plasmids into cell lines including CV1 and thyrotroph-derived TαT1. GATA2 but not Pit-1 activated the D2 promoter. Two GATA responsive elements (GATA-REs) were identified close to cAMP responsive element. The protein kinase A activator, forskolin, synergistically enhanced GATA2-dependent activity. Gel-shift and chromatin immunoprecipitation assays with TαT1 cells indicated that GATA2 binds to these GATA-REs. T3 repressed the GATA2-induced activity of the D2 promoter in the presence of the pituitary-specific TR, TRβ2. The inhibition by T3-bound TRβ2 was dominant over the synergism between GATA2 and forskolin. The D2 promoter is also stimulated by GATA4, the major GATA in cardiomyocytes, and this activity was repressed by T3 in the presence of TRα1. These data indicate that the GATA-induced activity of the D2 promoter is suppressed by T3-bound TRs via a tethering mechanism, as in the case of the TSHβ gene.
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Affiliation(s)
- Hideyuki Matsunaga
- Second Division, Department of Internal Medicine, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu, Shizuoka, 431–3192, Japan
| | - Shigekazu Sasaki
- Second Division, Department of Internal Medicine, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu, Shizuoka, 431–3192, Japan
| | - Shingo Suzuki
- Second Division, Department of Internal Medicine, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu, Shizuoka, 431–3192, Japan
| | - Akio Matsushita
- Second Division, Department of Internal Medicine, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu, Shizuoka, 431–3192, Japan
| | - Hirotoshi Nakamura
- Kuma Hospital, 8-2-35 Shimoyamate-dori, Chuo-ku, Kobe, Hyogo, 650–0011, Japan
| | - Hiroko Misawa Nakamura
- Second Division, Department of Internal Medicine, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu, Shizuoka, 431–3192, Japan
| | - Naoko Hirahara
- Second Division, Department of Internal Medicine, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu, Shizuoka, 431–3192, Japan
| | - Go Kuroda
- Second Division, Department of Internal Medicine, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu, Shizuoka, 431–3192, Japan
| | - Hiroyuki Iwaki
- Division of Endocrinology, Seirei Hamamatsu General Hospital, 2-12-12 Sumiyoshi, Naka-ku, Hamamatsu, Shizuoka, 430–0906, Japan
| | - Kenji Ohba
- Duke-NUS Graduate Medical School Singapore, No 8 College Road, Level 8th, 169857, Singapore
| | - Hiroshi Morita
- Second Division, Department of Internal Medicine, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu, Shizuoka, 431–3192, Japan
| | - Yutaka Oki
- Department of Family and Community Medicine, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu, Shizuoka, 431–3192, Japan
| | - Takafumi Suda
- Second Division, Department of Internal Medicine, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu, Shizuoka, 431–3192, Japan
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15
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Birket MJ, Ribeiro MC, Kosmidis G, Ward D, Leitoguinho AR, van de Pol V, Dambrot C, Devalla HD, Davis RP, Mastroberardino PG, Atsma DE, Passier R, Mummery CL. Contractile Defect Caused by Mutation in MYBPC3 Revealed under Conditions Optimized for Human PSC-Cardiomyocyte Function. Cell Rep 2015; 13:733-745. [PMID: 26489474 PMCID: PMC4644234 DOI: 10.1016/j.celrep.2015.09.025] [Citation(s) in RCA: 137] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2015] [Revised: 07/31/2015] [Accepted: 09/05/2015] [Indexed: 12/23/2022] Open
Abstract
Maximizing baseline function of human pluripotent stem cell-derived cardiomyocytes (hPSC-CMs) is essential for their effective application in models of cardiac toxicity and disease. Here, we aimed to identify factors that would promote an adequate level of function to permit robust single-cell contractility measurements in a human induced pluripotent stem cell (hiPSC) model of hypertrophic cardiomyopathy (HCM). A simple screen revealed the collaborative effects of thyroid hormone, IGF-1 and the glucocorticoid analog dexamethasone on the electrophysiology, bioenergetics, and contractile force generation of hPSC-CMs. In this optimized condition, hiPSC-CMs with mutations in MYBPC3, a gene encoding myosin-binding protein C, which, when mutated, causes HCM, showed significantly lower contractile force generation than controls. This was recapitulated by direct knockdown of MYBPC3 in control hPSC-CMs, supporting a mechanism of haploinsufficiency. Modeling this disease in vitro using human cells is an important step toward identifying therapeutic interventions for HCM.
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Affiliation(s)
- Matthew J Birket
- Department of Anatomy and Embryology, Leiden University Medical Center, 2300 RC Leiden, the Netherlands
| | - Marcelo C Ribeiro
- Department of Anatomy and Embryology, Leiden University Medical Center, 2300 RC Leiden, the Netherlands
| | - Georgios Kosmidis
- Department of Anatomy and Embryology, Leiden University Medical Center, 2300 RC Leiden, the Netherlands
| | - Dorien Ward
- Department of Anatomy and Embryology, Leiden University Medical Center, 2300 RC Leiden, the Netherlands
| | - Ana Rita Leitoguinho
- Department of Anatomy and Embryology, Leiden University Medical Center, 2300 RC Leiden, the Netherlands
| | - Vera van de Pol
- Department of Anatomy and Embryology, Leiden University Medical Center, 2300 RC Leiden, the Netherlands
| | - Cheryl Dambrot
- Department of Anatomy and Embryology, Leiden University Medical Center, 2300 RC Leiden, the Netherlands; Department of Cardiology, Leiden University Medical Center, 2300 RC Leiden, the Netherlands
| | - Harsha D Devalla
- Department of Anatomy and Embryology, Leiden University Medical Center, 2300 RC Leiden, the Netherlands
| | - Richard P Davis
- Department of Anatomy and Embryology, Leiden University Medical Center, 2300 RC Leiden, the Netherlands
| | | | - Douwe E Atsma
- Department of Cardiology, Leiden University Medical Center, 2300 RC Leiden, the Netherlands
| | - Robert Passier
- Department of Anatomy and Embryology, Leiden University Medical Center, 2300 RC Leiden, the Netherlands
| | - Christine L Mummery
- Department of Anatomy and Embryology, Leiden University Medical Center, 2300 RC Leiden, the Netherlands.
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16
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Zhang D, Wang X, Li Y, Zhao L, Lu M, Yao X, Xia H, Wang YC, Liu MF, Jiang J, Li X, Ying H. Thyroid hormone regulates muscle fiber type conversion via miR-133a1. ACTA ACUST UNITED AC 2014; 207:753-66. [PMID: 25512392 PMCID: PMC4274265 DOI: 10.1083/jcb.201406068] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Thyroid hormone promotes slow-to-fast muscle fiber type conversion by inducing miR-133a1 and thereby repressing the expression of the slow muscle determinant TEAD1. It is known that thyroid hormone (TH) is a major determinant of muscle fiber composition, but the molecular mechanism by which it does so remains unclear. Here, we demonstrated that miR-133a1 is a direct target gene of TH in muscle. Intriguingly, miR-133a, which is enriched in fast-twitch muscle, regulates slow-to-fast muscle fiber type conversion by targeting TEA domain family member 1 (TEAD1), a key regulator of slow muscle gene expression. Inhibition of miR-133a in vivo abrogated TH action on muscle fiber type conversion. Moreover, TEAD1 overexpression antagonized the effect of miR-133a as well as TH on muscle fiber type switch. Additionally, we demonstrate that TH negatively regulates the transcription of myosin heavy chain I indirectly via miR-133a/TEAD1. Collectively, we propose that TH inhibits the slow muscle phenotype through a novel epigenetic mechanism involving repression of TEAD1 expression via targeting by miR-133a1. This identification of a TH-regulated microRNA therefore sheds new light on how TH achieves its diverse biological activities.
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Affiliation(s)
- Duo Zhang
- Key Laboratory of Food Safety Research, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences; and Center for RNA Research, State Key Laboratory of Molecular Biology; University of Chinese Academy of Sciences, Shanghai 200031, China Key Laboratory of Food Safety Risk Assessment, Ministry of Health, Beijing 100021, China
| | - Xiaoyun Wang
- Key Laboratory of Food Safety Research, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences; and Center for RNA Research, State Key Laboratory of Molecular Biology; University of Chinese Academy of Sciences, Shanghai 200031, China Key Laboratory of Food Safety Risk Assessment, Ministry of Health, Beijing 100021, China
| | - Yuying Li
- Key Laboratory of Food Safety Research, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences; and Center for RNA Research, State Key Laboratory of Molecular Biology; University of Chinese Academy of Sciences, Shanghai 200031, China Key Laboratory of Food Safety Risk Assessment, Ministry of Health, Beijing 100021, China
| | - Lei Zhao
- Department of Neuromuscular Disease, Children's Hospital of Fudan University, Shanghai 201102, China
| | - Minghua Lu
- Key Laboratory of Food Safety Research, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences; and Center for RNA Research, State Key Laboratory of Molecular Biology; University of Chinese Academy of Sciences, Shanghai 200031, China Shanghai Key Laboratory of Molecular Andrology, Institute of Biochemistry and Cell Biology, and Clinical Research Center of Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Xuan Yao
- Key Laboratory of Food Safety Research, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences; and Center for RNA Research, State Key Laboratory of Molecular Biology; University of Chinese Academy of Sciences, Shanghai 200031, China Key Laboratory of Food Safety Risk Assessment, Ministry of Health, Beijing 100021, China
| | - Hongfeng Xia
- Key Laboratory of Food Safety Research, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences; and Center for RNA Research, State Key Laboratory of Molecular Biology; University of Chinese Academy of Sciences, Shanghai 200031, China Key Laboratory of Food Safety Risk Assessment, Ministry of Health, Beijing 100021, China
| | - Yu-Cheng Wang
- Department of Nutrition, Shanghai Xuhui Central Hospital, Shanghai 200031, China
| | - Mo-Fang Liu
- Key Laboratory of Food Safety Research, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences; and Center for RNA Research, State Key Laboratory of Molecular Biology; University of Chinese Academy of Sciences, Shanghai 200031, China Shanghai Key Laboratory of Molecular Andrology, Institute of Biochemistry and Cell Biology, and Clinical Research Center of Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Jingjing Jiang
- Department of Endocrinology and Metabolism, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Xihua Li
- Department of Neuromuscular Disease, Children's Hospital of Fudan University, Shanghai 201102, China
| | - Hao Ying
- Key Laboratory of Food Safety Research, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences; and Center for RNA Research, State Key Laboratory of Molecular Biology; University of Chinese Academy of Sciences, Shanghai 200031, China Key Laboratory of Food Safety Risk Assessment, Ministry of Health, Beijing 100021, China Shanghai Key Laboratory of Molecular Andrology, Institute of Biochemistry and Cell Biology, and Clinical Research Center of Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
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