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Bibiloni P, Pomar CA, Palou A, Sánchez J, Serra F. miR-222 exerts negative regulation on insulin signaling pathway in 3T3-L1 adipocytes. Biofactors 2022; 49:365-378. [PMID: 36310379 DOI: 10.1002/biof.1914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Accepted: 10/12/2022] [Indexed: 11/10/2022]
Abstract
Increased miR-222 levels are associated with metabolic syndrome, insulin resistance, and diabetes. Moreover, rats fed an obesogenic diet during lactation have higher miR-222 content in breast milk and the offspring display greater body fat mass and impaired insulin sensitivity in adulthood. In order to investigate the molecular mechanisms involved and to dissect the specific effects of miR-222 on adipocytes, transfection with a mimic or an inhibitor of miR-222 has been conducted on 3T3-L1 preadipocytes. 3T3-L1 cells were transfected with either a mimic or an inhibitor of miR-222 and collected after 2 days (preadipocytes) or 8 days (mature adipocytes) for transcriptomic analysis. Results showed a relevant impact on pathways associated with insulin signaling, lipid metabolism and adipogenesis. Outcomes in key genes and proteins were further analyzed with quantitative reverse transcription polymerase chain reaction and Western Blotting, respectively, which displayed a general inhibition in important effectors of the identified routes under miR-222 mimic treatment in preadipocytes. Although to a lesser extent, this overall signature was maintained in differentiated adipocytes. Altogether, miR-222 exerts a direct effect in metabolic pathways of 3T3-L1 adipocytes that are relevant to adipocyte function, limiting adipogenesis and insulin signaling pathways, offering a mechanistic explanation for its reported association with metabolic diseases.
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Affiliation(s)
- Pere Bibiloni
- Laboratory of Molecular Biology, Nutrition and Biotechnology (Nutrigenomics, Biomarkers and Risk Evaluation), University of the Balearic Islands, Palma, Spain
- Instituto de Investigación Sanitaria Illes Balears, IdISBa, Palma, Spain
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III (ISCIII), Madrid, Spain
| | - Catalina A Pomar
- Laboratory of Molecular Biology, Nutrition and Biotechnology (Nutrigenomics, Biomarkers and Risk Evaluation), University of the Balearic Islands, Palma, Spain
- Instituto de Investigación Sanitaria Illes Balears, IdISBa, Palma, Spain
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III (ISCIII), Madrid, Spain
| | - Andreu Palou
- Laboratory of Molecular Biology, Nutrition and Biotechnology (Nutrigenomics, Biomarkers and Risk Evaluation), University of the Balearic Islands, Palma, Spain
- Instituto de Investigación Sanitaria Illes Balears, IdISBa, Palma, Spain
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III (ISCIII), Madrid, Spain
| | - Juana Sánchez
- Laboratory of Molecular Biology, Nutrition and Biotechnology (Nutrigenomics, Biomarkers and Risk Evaluation), University of the Balearic Islands, Palma, Spain
- Instituto de Investigación Sanitaria Illes Balears, IdISBa, Palma, Spain
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III (ISCIII), Madrid, Spain
| | - Francisca Serra
- Laboratory of Molecular Biology, Nutrition and Biotechnology (Nutrigenomics, Biomarkers and Risk Evaluation), University of the Balearic Islands, Palma, Spain
- Instituto de Investigación Sanitaria Illes Balears, IdISBa, Palma, Spain
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III (ISCIII), Madrid, Spain
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2
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Nathanael J, Suardana P, Vianney YM, Dwi Putra SE. The role of FoxO1 and its modulation with small molecules in the development of diabetes mellitus: A review. Chem Biol Drug Des 2021; 99:344-361. [PMID: 34862852 DOI: 10.1111/cbdd.13989] [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: 08/03/2021] [Revised: 11/11/2021] [Accepted: 11/21/2021] [Indexed: 12/14/2022]
Abstract
Diabetes mellitus type 2 (T2D) is one of the metabolic disorders suffered by a global human being. Certain factors, such as lifestyle and heredity, can increase a person's tendency for T2D. Various genes and proteins play a role in the development of insulin resistance and ultimately diabetes in which one central protein that is discussed in this review is FoxO1. In this review, we regard FoxO1 activation as detrimental, promote high plasma glucose level, and induce insulin resistance. Indeed, many contrasting studies arise since FoxO1 is an important protein to alleviate oxidative stress and promote cell survival, for example, also by preventing hyperglycemic-induced cell death. Inter-relation to PPARG, another important protein in metabolism, is also discussed. Ultimately, we discussed contrasting approaches of targeting FoxO1 to combat diabetes mellitus by small molecules.
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Affiliation(s)
- Joshua Nathanael
- Department of Biotechnology, Faculty of Biotechnology, University of Surabaya, Surabaya, East Java, Indonesia
| | - Putu Suardana
- Department of Biotechnology, Faculty of Biotechnology, University of Surabaya, Surabaya, East Java, Indonesia
| | - Yoanes Maria Vianney
- Department of Biotechnology, Faculty of Biotechnology, University of Surabaya, Surabaya, East Java, Indonesia
| | - Sulistyo Emantoko Dwi Putra
- Department of Biotechnology, Faculty of Biotechnology, University of Surabaya, Surabaya, East Java, Indonesia
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3
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Wang G, Yu Y, Cai W, Batista TM, Suk S, Noh HL, Hirshman M, Nigro P, Li ME, Softic S, Goodyear L, Kim JK, Kahn CR. Muscle-Specific Insulin Receptor Overexpression Protects Mice From Diet-Induced Glucose Intolerance but Leads to Postreceptor Insulin Resistance. Diabetes 2020; 69:2294-2309. [PMID: 32868340 PMCID: PMC7576573 DOI: 10.2337/db20-0439] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Accepted: 08/25/2020] [Indexed: 12/22/2022]
Abstract
Skeletal muscle insulin resistance is a prominent early feature in the pathogenesis of type 2 diabetes. In attempt to overcome this defect, we generated mice overexpressing insulin receptors (IR) specifically in skeletal muscle (IRMOE). On normal chow, IRMOE mice have body weight similar to that of controls but an increase in lean mass and glycolytic muscle fibers and reduced fat mass. IRMOE mice also show higher basal phosphorylation of IR, IRS-1, and Akt in muscle and improved glucose tolerance compared with controls. When challenged with high-fat diet (HFD), IRMOE mice are protected from diet-induced obesity. This is associated with reduced inflammation in fat and liver, improved glucose tolerance, and improved systemic insulin sensitivity. Surprisingly, however, in both chow and HFD-fed mice, insulin-stimulated Akt phosphorylation is significantly reduced in muscle of IRMOE mice, indicating postreceptor insulin resistance. RNA sequencing reveals downregulation of several postreceptor signaling proteins that contribute to this resistance. Thus, enhancing early insulin signaling in muscle by overexpression of the IR protects mice from diet-induced obesity and its effects on glucose metabolism. However, chronic overstimulation of this pathway leads to postreceptor desensitization, indicating the critical balance between normal signaling and hyperstimulation of the insulin signaling pathway.
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Affiliation(s)
- Guoxiao Wang
- Section on Integrative Physiology and Metabolism, Joslin Diabetes Center, Harvard Medical School, Boston, MA
| | - Yingying Yu
- Section on Integrative Physiology and Metabolism, Joslin Diabetes Center, Harvard Medical School, Boston, MA
| | - Weikang Cai
- Section on Integrative Physiology and Metabolism, Joslin Diabetes Center, Harvard Medical School, Boston, MA
- Department of Biomedical Sciences, New York Institute of Technology College of Osteopathic Medicine, Old Westbury, NY
| | - Thiago M Batista
- Section on Integrative Physiology and Metabolism, Joslin Diabetes Center, Harvard Medical School, Boston, MA
| | - Sujin Suk
- Program in Molecular Medicine and Division of Endocrinology, Metabolism, and Diabetes, Department of Medicine, University of Massachusetts Medical School, Worcester, MA
| | - Hye Lim Noh
- Program in Molecular Medicine and Division of Endocrinology, Metabolism, and Diabetes, Department of Medicine, University of Massachusetts Medical School, Worcester, MA
| | - Michael Hirshman
- Section on Integrative Physiology and Metabolism, Joslin Diabetes Center, Harvard Medical School, Boston, MA
| | - Pasquale Nigro
- Section on Integrative Physiology and Metabolism, Joslin Diabetes Center, Harvard Medical School, Boston, MA
| | - Mengyao Ella Li
- Section on Integrative Physiology and Metabolism, Joslin Diabetes Center, Harvard Medical School, Boston, MA
| | - Samir Softic
- Section on Integrative Physiology and Metabolism, Joslin Diabetes Center, Harvard Medical School, Boston, MA
- Divisions of Pediatric Gastroenterology and Pharmacology and Nutritional Sciences, University of Kentucky College of Medicine, Lexington, KY
| | - Laurie Goodyear
- Section on Integrative Physiology and Metabolism, Joslin Diabetes Center, Harvard Medical School, Boston, MA
| | - Jason K Kim
- Program in Molecular Medicine and Division of Endocrinology, Metabolism, and Diabetes, Department of Medicine, University of Massachusetts Medical School, Worcester, MA
| | - C Ronald Kahn
- Section on Integrative Physiology and Metabolism, Joslin Diabetes Center, Harvard Medical School, Boston, MA
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4
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Hosooka T, Hosokawa Y, Matsugi K, Shinohara M, Senga Y, Tamori Y, Aoki C, Matsui S, Sasaki T, Kitamura T, Kuroda M, Sakaue H, Nomura K, Yoshino K, Nabatame Y, Itoh Y, Yamaguchi K, Hayashi Y, Nakae J, Accili D, Yokomizo T, Seino S, Kasuga M, Ogawa W. The PDK1-FoxO1 signaling in adipocytes controls systemic insulin sensitivity through the 5-lipoxygenase-leukotriene B 4 axis. Proc Natl Acad Sci U S A 2020; 117:11674-11684. [PMID: 32393635 PMCID: PMC7261087 DOI: 10.1073/pnas.1921015117] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Although adipocytes are major targets of insulin, the influence of impaired insulin action in adipocytes on metabolic homeostasis remains unclear. We here show that adipocyte-specific PDK1 (3'-phosphoinositide-dependent kinase 1)-deficient (A-PDK1KO) mice manifest impaired metabolic actions of insulin in adipose tissue and reduction of adipose tissue mass. A-PDK1KO mice developed insulin resistance, glucose intolerance, and hepatic steatosis, and this phenotype was suppressed by additional ablation of FoxO1 specifically in adipocytes (A-PDK1/FoxO1KO mice) without an effect on adipose tissue mass. Neither circulating levels of adiponectin and leptin nor inflammatory markers in adipose tissue differed between A-PDK1KO and A-PDK1/FoxO1KO mice. Lipidomics and microarray analyses revealed that leukotriene B4 (LTB4) levels in plasma and in adipose tissue as well as the expression of 5-lipoxygenase (5-LO) in adipose tissue were increased and restored in A-PDK1KO mice and A-PDK1/FoxO1KO mice, respectively. Genetic deletion of the LTB4 receptor BLT1 as well as pharmacological intervention to 5-LO or BLT1 ameliorated insulin resistance in A-PDK1KO mice. Furthermore, insulin was found to inhibit LTB4 production through down-regulation of 5-LO expression via the PDK1-FoxO1 pathway in isolated adipocytes. Our results indicate that insulin signaling in adipocytes negatively regulates the production of LTB4 via the PDK1-FoxO1 pathway and thereby maintains systemic insulin sensitivity.
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Affiliation(s)
- Tetsuya Hosooka
- Division of Diabetes and Endocrinology, Kobe University Graduate School of Medicine, 650-0017 Kobe, Japan
| | - Yusei Hosokawa
- Division of Diabetes and Endocrinology, Kobe University Graduate School of Medicine, 650-0017 Kobe, Japan
| | - Kaku Matsugi
- Division of Diabetes and Endocrinology, Kobe University Graduate School of Medicine, 650-0017 Kobe, Japan
| | - Masakazu Shinohara
- Division of Epidemiology, Kobe University Graduate School of Medicine, 650-0017 Kobe, Japan
- The Integrated Center for Mass Spectrometry, Kobe University Graduate School of Medicine, 650-0017 Kobe, Japan
| | - Yoko Senga
- Division of Diabetes and Endocrinology, Kobe University Graduate School of Medicine, 650-0017 Kobe, Japan
| | - Yoshikazu Tamori
- Division of Diabetes and Endocrinology, Kobe University Graduate School of Medicine, 650-0017 Kobe, Japan
- Department of Internal Medicine, Chibune General Hospital, 555-0001 Osaka, Japan
| | - Chikako Aoki
- Division of Diabetes and Endocrinology, Kobe University Graduate School of Medicine, 650-0017 Kobe, Japan
| | - Sho Matsui
- Metabolic Signal Research Center, Institute for Molecular and Cellular Regulation, Gunma University, 371-8512 Maebashi, Japan
| | - Tsutomu Sasaki
- Metabolic Signal Research Center, Institute for Molecular and Cellular Regulation, Gunma University, 371-8512 Maebashi, Japan
| | - Tadahiro Kitamura
- Metabolic Signal Research Center, Institute for Molecular and Cellular Regulation, Gunma University, 371-8512 Maebashi, Japan
| | - Masashi Kuroda
- Department of Nutrition and Metabolism, Institute of Biomedical Sciences, Tokushima University Graduate School, 770-8503 Tokushima, Japan
| | - Hiroshi Sakaue
- Department of Nutrition and Metabolism, Institute of Biomedical Sciences, Tokushima University Graduate School, 770-8503 Tokushima, Japan
| | - Kazuhiro Nomura
- Division of Diabetes and Endocrinology, Kobe University Graduate School of Medicine, 650-0017 Kobe, Japan
| | - Kei Yoshino
- Division of Diabetes and Endocrinology, Kobe University Graduate School of Medicine, 650-0017 Kobe, Japan
| | - Yuko Nabatame
- Division of Diabetes and Endocrinology, Kobe University Graduate School of Medicine, 650-0017 Kobe, Japan
| | - Yoshito Itoh
- Department of Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, 602-8566 Kyoto, Japan
| | - Kanji Yamaguchi
- Department of Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, 602-8566 Kyoto, Japan
| | - Yoshitake Hayashi
- Division of Molecular Medicine and Medical Genetics, Kobe University Graduate School of Medicine, 650-0017 Kobe, Japan
| | - Jun Nakae
- Department of Internal Medicine, Keio University School of Medicine, 160-8582 Tokyo, Japan
| | - Domenico Accili
- Department of Medicine and Naomi Berrie Diabetes Center, Columbia University, NY 10032
| | - Takehiko Yokomizo
- Department of Biochemistry, Juntendo University School of Medicine, 113-8421 Tokyo, Japan
| | - Susumu Seino
- Division of Molecular and Metabolic Medicine, Kobe University Graduate School of Medicine, 650-0017 Kobe, Japan
| | - Masato Kasuga
- The Institute for Adult Diseases, Asahi Life Foundation, 103-0002 Tokyo, Japan
| | - Wataru Ogawa
- Division of Diabetes and Endocrinology, Kobe University Graduate School of Medicine, 650-0017 Kobe, Japan;
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5
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Li X, Liu X, Wang Y, Cao F, Chen Z, Hu Z, Yu B, Feng H, Ba Z, Liu T, Li H, Jiang B, Huang Y, Li L, Wu D. Intervertebral disc degeneration in mice with type II diabetes induced by leptin receptor deficiency. BMC Musculoskelet Disord 2020; 21:77. [PMID: 32024487 PMCID: PMC7003448 DOI: 10.1186/s12891-020-3091-1] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Accepted: 01/23/2020] [Indexed: 11/10/2022] Open
Abstract
Background The leptin receptor-deficient knockout (db/db) mouse is a well-established model for studying type II diabetes mellitus (T2DM). T2DM is an important risk factor of intervertebral disc degeneration (IVDD). Although the relationship between type I diabetes and IVDD has been reported by many studies, few studies have reported the effects of T2DM on IVDD in db/db mice model. Methods Mice were separated into 3 groups: wild-type (WT), db/db, and IGF-1 groups (leptin receptor-deficient mice were treated with insulin-like growth factor-1 (IGF-1). To observe the effects of T2DM and glucose-lowering treatment on IVDD, IGF-1 injection was used. The IVD phenotype was detected by H&E and safranin O fast green staining among db/db, WT and IGF-1 mice. The levels of blood glucose and weight in mice were also recorded. The changes in the mass of the trabecular bone in the fifth lumbar vertebra were documented by micro-computed tomography (micro-CT). Tunnel assays were used to detect cell apoptosis in each group. Results The weight of the mice were 27.68 ± 1.6 g in WT group, which was less than 57.56 ± 4.8 g in db/db group, and 52.17 ± 3.7 g in IGF-1 injected group (P < 0.05). The blood glucose levels were also significantly higher in the db/db mice group. T2DM caused by leptin receptor knockout showed an association with significantly decreased vertebral bone mass and increased IVDD when compared to WT mice. The db/db mice induced by leptin deletion showed a higher percentage of MMP3 expression as well as cell apoptosis in IVDD mice than WT mice (P < 0.05), while IGF-1 treatment reversed this situation (P < 0.05). Conclusions T2DM induced by leptin receptor knockout led to IVDD by increasing the levels of MMP3 and promoting cell apoptosis. IGF-1 treatment partially rescue the phenotype of IVDD induced by leptin receptor knockout.
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Affiliation(s)
- Xinhua Li
- Department of Spinal Surgery, Shanghai East Hospital, Tongji University School of Medicine, 150 Jimo Road, Shanghai, 200120, China
| | - Xiaoming Liu
- Department of Spinal Surgery, Shanghai East Hospital, Tongji University School of Medicine, 150 Jimo Road, Shanghai, 200120, China.,Department of Orthopedics, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, 1111 XianXia Road, Shanghai, 200336, China
| | - Yiru Wang
- Department of endocrinology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, 200120, China
| | - Fuming Cao
- Department of endocrinology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, 200120, China
| | - Zhaoxiong Chen
- Department of Spinal Surgery, Shanghai East Hospital, Tongji University School of Medicine, 150 Jimo Road, Shanghai, 200120, China
| | - Zhouyang Hu
- Department of Spinal Surgery, Shanghai East Hospital, Tongji University School of Medicine, 150 Jimo Road, Shanghai, 200120, China
| | - Bin Yu
- Department of Spinal Surgery, Shanghai East Hospital, Tongji University School of Medicine, 150 Jimo Road, Shanghai, 200120, China
| | - Hang Feng
- Department of Spinal Surgery, Shanghai East Hospital, Tongji University School of Medicine, 150 Jimo Road, Shanghai, 200120, China
| | - Zhaoyu Ba
- Department of Spinal Surgery, Shanghai East Hospital, Tongji University School of Medicine, 150 Jimo Road, Shanghai, 200120, China
| | - Tao Liu
- Department of Spinal Surgery, Shanghai East Hospital, Tongji University School of Medicine, 150 Jimo Road, Shanghai, 200120, China
| | - Haoxi Li
- Department of Spinal Surgery, Shanghai East Hospital, Tongji University School of Medicine, 150 Jimo Road, Shanghai, 200120, China
| | - Bei Jiang
- Department of Spinal Surgery, Shanghai East Hospital, Tongji University School of Medicine, 150 Jimo Road, Shanghai, 200120, China
| | - Yufeng Huang
- Department of Spinal Surgery, Shanghai East Hospital, Tongji University School of Medicine, 150 Jimo Road, Shanghai, 200120, China.
| | - Lijun Li
- Department of Spinal Surgery, Shanghai East Hospital, Tongji University School of Medicine, 150 Jimo Road, Shanghai, 200120, China.
| | - Desheng Wu
- Department of Spinal Surgery, Shanghai East Hospital, Tongji University School of Medicine, 150 Jimo Road, Shanghai, 200120, China.
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6
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Wang Y, Zhou H, Palyha O, Mu J. Restoration of insulin receptor improves diabetic phenotype in T2DM mice. JCI Insight 2019; 4:124945. [PMID: 31391336 DOI: 10.1172/jci.insight.124945] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Accepted: 06/27/2019] [Indexed: 12/14/2022] Open
Abstract
Type 2 diabetes mellitus (T2DM), also known as adult-onset diabetes, is characterized by ineffective insulin action due to insulin resistance in key metabolic tissues. Insulin receptor (IR) plays an important role in insulin signal transduction, defect of which has been considered the fundamental cause of T2DM. IR content reduction in diabetes is one key contributor to the defective insulin signaling and diabetes progression. Rescuing IR levels by transgenic complementation has not been considered as a treatment option because it is limited by uncontrollable expression level, tissue selectivity, or developmental defects. In the current study, we demonstrated that single-dose adeno-associated virus (AAV) vector delivered expression of human IR (hIR) in the liver of inducible IR-knockout mice and significantly improved the diabetic phenotype caused by IR deletion during adulthood. Such an approach was also applied, for the first time to our knowledge, to treating ob/ob mice, a model of severe T2DM attributed to superfluous calorie intake and insulin resistance. Interestingly, similar treatment with AAV-hIR had no obvious effect in healthy animals, indicative of low hypoglycemic risk as a consequence of potential excessive insulin action. The results described here support restoration of IR expression as a safe and effective T2DM therapeutic with a long-lasting profile.
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MESH Headings
- Animals
- Antigens, CD/genetics
- Antigens, CD/metabolism
- Blood Glucose/analysis
- Dependovirus/genetics
- Diabetes Mellitus, Type 2/blood
- Diabetes Mellitus, Type 2/genetics
- Diabetes Mellitus, Type 2/pathology
- Diabetes Mellitus, Type 2/therapy
- Disease Models, Animal
- Genetic Therapy/adverse effects
- Genetic Therapy/methods
- Genetic Vectors/administration & dosage
- Genetic Vectors/adverse effects
- Genetic Vectors/genetics
- Humans
- Hypoglycemia/blood
- Hypoglycemia/diagnosis
- Hypoglycemia/genetics
- Insulin/metabolism
- Male
- Mice
- Mice, Knockout
- Receptor, Insulin/genetics
- Receptor, Insulin/metabolism
- Treatment Outcome
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7
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Gulshan M, Yaku K, Okabe K, Mahmood A, Sasaki T, Yamamoto M, Hikosaka K, Usui I, Kitamura T, Tobe K, Nakagawa T. Overexpression of Nmnat3 efficiently increases NAD and NGD levels and ameliorates age-associated insulin resistance. Aging Cell 2018; 17:e12798. [PMID: 29901258 PMCID: PMC6052485 DOI: 10.1111/acel.12798] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Revised: 05/09/2018] [Accepted: 05/26/2018] [Indexed: 12/11/2022] Open
Abstract
Nicotinamide adenine dinucleotide (NAD) is an important cofactor that regulates various biological processes, including metabolism and gene expression. As a coenzyme, NAD controls mitochondrial respiration through enzymes of the tricarboxylic acid (TCA) cycle, β‐oxidation, and oxidative phosphorylation and also serves as a substrate for posttranslational protein modifications, such as deacetylation and ADP‐ribosylation by sirtuins and poly(ADP‐ribose) polymerase (PARP), respectively. Many studies have demonstrated that NAD levels decrease with aging and that these declines cause various aging‐associated diseases. In contrast, activation of NAD metabolism prevents declines in NAD levels during aging. In particular, dietary supplementation with NAD precursors has been associated with protection against age‐associated insulin resistance. However, it remains unclear which NAD synthesis pathway is important and/or efficient at increasing NAD levels in vivo. In this study, Nmnat3 overexpression in mice efficiently increased NAD levels in various tissues and prevented aging‐related declines in NAD levels. We also demonstrated that Nmnat3‐overexpressing (Nmnat3 Tg) mice were protected against diet‐induced and aging‐associated insulin resistance. Moreover, in skeletal muscles of Nmnat3 Tg mice, TCA cycle activity was significantly enhanced, and the energy source for oxidative phosphorylation was shifted toward fatty acid oxidation. Furthermore, reactive oxygen species (ROS) generation was significantly suppressed in aged Nmnat3 Tg mice. Interestingly, we also found that concentrations of the NAD analog nicotinamide guanine dinucleotide (NGD) were dramatically increased in Nmnat3 Tg mice. These results suggest that Nmnat3 overexpression improves metabolic health and that Nmnat3 is an attractive therapeutic target for metabolic disorders that are caused by aging.
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Affiliation(s)
- Maryam Gulshan
- Frontier Research Core for Life Sciences; University of Toyama; Toyama Japan
- Department of Metabolism and Nutrition; Graduate School of Medicine and Pharmaceutical Science for Research; University of Toyama; Toyama Japan
- First Department of Internal Medicine; Graduate School of Medicine and Pharmaceutical Science for Research; University of Toyama; Toyama Japan
| | - Keisuke Yaku
- Frontier Research Core for Life Sciences; University of Toyama; Toyama Japan
- Department of Metabolism and Nutrition; Graduate School of Medicine and Pharmaceutical Science for Research; University of Toyama; Toyama Japan
| | - Keisuke Okabe
- Frontier Research Core for Life Sciences; University of Toyama; Toyama Japan
- Department of Metabolism and Nutrition; Graduate School of Medicine and Pharmaceutical Science for Research; University of Toyama; Toyama Japan
- First Department of Internal Medicine; Graduate School of Medicine and Pharmaceutical Science for Research; University of Toyama; Toyama Japan
| | - Arshad Mahmood
- Frontier Research Core for Life Sciences; University of Toyama; Toyama Japan
- Department of Metabolism and Nutrition; Graduate School of Medicine and Pharmaceutical Science for Research; University of Toyama; Toyama Japan
- First Department of Internal Medicine; Graduate School of Medicine and Pharmaceutical Science for Research; University of Toyama; Toyama Japan
| | - Tsutomu Sasaki
- Laboratory of Metabolic Signal; Metabolic Signal Research Center; Institute for Molecular and Cellular Regulation; Gunma University; Maebashi Japan
| | - Masashi Yamamoto
- Frontier Research Core for Life Sciences; University of Toyama; Toyama Japan
- Department of Metabolism and Nutrition; Graduate School of Medicine and Pharmaceutical Science for Research; University of Toyama; Toyama Japan
- Department of Otorhinolaryngology-Head and Neck Surgery; Osaka University Graduate School of Medicine; Osaka Japan
| | - Keisuke Hikosaka
- Frontier Research Core for Life Sciences; University of Toyama; Toyama Japan
| | - Isao Usui
- First Department of Internal Medicine; Graduate School of Medicine and Pharmaceutical Science for Research; University of Toyama; Toyama Japan
| | - Tadahiro Kitamura
- Laboratory of Metabolic Signal; Metabolic Signal Research Center; Institute for Molecular and Cellular Regulation; Gunma University; Maebashi Japan
| | - Kazuyuki Tobe
- First Department of Internal Medicine; Graduate School of Medicine and Pharmaceutical Science for Research; University of Toyama; Toyama Japan
| | - Takashi Nakagawa
- Frontier Research Core for Life Sciences; University of Toyama; Toyama Japan
- Department of Metabolism and Nutrition; Graduate School of Medicine and Pharmaceutical Science for Research; University of Toyama; Toyama Japan
- Institute of Natural Medicine; University of Toyama; Toyama Japan
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8
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Sasaki T, Numano R, Yokota-Hashimoto H, Matsui S, Kimura N, Takeuchi H, Kitamura T. A central-acting connexin inhibitor, INI-0602, prevents high-fat diet-induced feeding pattern disturbances and obesity in mice. Mol Brain 2018; 11:28. [PMID: 29793524 PMCID: PMC5968494 DOI: 10.1186/s13041-018-0372-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Accepted: 05/17/2018] [Indexed: 12/14/2022] Open
Abstract
A high-fat diet (HFD) causes obesity by promoting excessive energy intake, and simultaneously, by disturbing the timing of energy intake. Restoring the feeding pattern is sufficient to prevent HFD-induced obesity in mice. However, the molecular mechanism(s) underlying HFD-induced feeding pattern disturbances remain elusive. Saturated fatty acids activate microglia and cause hypothalamic inflammation. Activated microglia cause neuroinflammation, which spreads via inflammatory cytokines and gap-junction hemichannels. However, the role of gap-junction hemichannels in HFD-induced obesity remains unaddressed. We used a novel, central-acting connexin inhibitor, INI-0602, which has high affinity for gap junction hemichannels and does not affect the induction of inflammatory cytokines. We analyzed ad libitum feeding behavior and locomotor activity in mice that were fed normal chow (NC), a HFD with elevated saturated fatty acids (SFAs), or a HFD with very high SFAs. We found that HFD feeding induced acute hyperphagia, mainly during the light cycle. Feeding pattern disturbances were more pronounced in mice that consumed the HFD with very high SFAs than in mice that consumed the HFD with elevated SFAs. When INI-0602 was administered before the HFD was introduced, it blocked the feeding pattern disturbance, but not locomotor activity disturbances; moreover, it prevented subsequent diet-induced obesity. However, when INI-0602 was administered after the HFD had disturbed the feeding pattern, it failed to restore the normal feeding pattern. Therefore, we propose that SFAs in HFDs played a major role in disrupting feeding patterns in mice. Moreover, the feeding pattern disturbance required the function of central, gap junction hemichannels at the initiation of a HFD. However, altering hemichannel function after the feeding pattern disturbance was established had no effect. Thus, preventing the occurrence of a feeding pattern disturbance by blocking the hemichannel pathway was associated with the prevention of the HFD-induced obesity in mice.
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Affiliation(s)
- Tsutomu Sasaki
- Laboratory of Metabolic Signaling, Institute for Molecular and Cellular Regulation, Gunma University, 3-39-15 Showa-machi, Maebashi, Gunma, 371-8512, Japan.
| | - Rika Numano
- Department of Environmental and Life Sciences, Toyohashi University of Technology, 1-1 Hibarigaoka Tempaku-cho, Toyohashi, 441-8580, Japan.,Electronics-Interdisciplinary Research Institute (EIIRIS), Toyohashi University of Technology, 1-1 Hibarigaoka Tempaku-cho, Toyohashi, 441-8580, Japan
| | - Hiromi Yokota-Hashimoto
- Laboratory of Metabolic Signaling, Institute for Molecular and Cellular Regulation, Gunma University, 3-39-15 Showa-machi, Maebashi, Gunma, 371-8512, Japan
| | - Sho Matsui
- Laboratory of Metabolic Signaling, Institute for Molecular and Cellular Regulation, Gunma University, 3-39-15 Showa-machi, Maebashi, Gunma, 371-8512, Japan
| | - Naobumi Kimura
- Department of Environmental and Life Sciences, Toyohashi University of Technology, 1-1 Hibarigaoka Tempaku-cho, Toyohashi, 441-8580, Japan
| | - Hideyuki Takeuchi
- Department of Neurology and Stroke Medicine, Yokohama City University Graduate School of Medicine, 3-9, Fukuura, Kanazawa-ku, Yokohama, 236-0004, Japan
| | - Tadahiro Kitamura
- Laboratory of Metabolic Signaling, Institute for Molecular and Cellular Regulation, Gunma University, 3-39-15 Showa-machi, Maebashi, Gunma, 371-8512, Japan
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9
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Serebrovska TV, Portnychenko AG, Drevytska TI, Portnichenko VI, Xi L, Egorov E, Gavalko AV, Naskalova S, Chizhova V, Shatylo VB. Intermittent hypoxia training in prediabetes patients: Beneficial effects on glucose homeostasis, hypoxia tolerance and gene expression. Exp Biol Med (Maywood) 2017; 242:1542-1552. [PMID: 28758418 DOI: 10.1177/1535370217723578] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
The present study aimed at examining beneficial effects of intermittent hypoxia training (IHT) under prediabetic conditions. We investigate the effects of three-week IHT on blood glucose level, tolerance to acute hypoxia, and leukocyte mRNA expression of hypoxia inducible factor 1α (HIF-1α) and its target genes, i.e. insulin receptor, facilitated glucose transporter-solute carrier family-2, and potassium voltage-gated channel subfamily J. Seven healthy and 11 prediabetic men and women (44-70 years of age) were examined before, next day and one month after three-week IHT (3 sessions per week, each session consisting 4 cycles of 5-min 12% O2 and 5-min room air breathing). We found that IHT afforded beneficial effects on glucose homeostasis in patients with prediabetes reducing fasting glucose and during standard oral glucose tolerance test. The most pronounced positive effects were observed at one month after IHT termination. IHT also significantly increased the tolerance to acute hypoxia (i.e. SaO2 level at 20th min of breathing with 12% O2) and improved functional parameters of respiratory and cardiovascular systems. IHT stimulated HIF-1α mRNA expression in blood leukocytes in healthy and prediabetic subjects, but in prediabetes patients the maximum increase was lagged. The greatest changes in mRNA expression of HIF-1α target genes occurred a month after IHT and coincided with the largest decrease in blood glucose levels. The higher expression of HIF-1α was positively associated with higher tolerance to hypoxia and better glucose homeostasis. In conclusion, our results suggest that IHT may be useful for preventing the development of type 2 diabetes. Impact statement The present study investigated the beneficial effects of intermittent hypoxia training (IHT) in humans under prediabetic conditions. We found that three-week moderate IHT induced higher HIF-1α mRNA expressions as well as its target genes, which were positively correlated with higher tolerance to acute hypoxia and better glucose homeostasis in both middle-aged healthy and prediabetic subjects. This small clinical trial has provided new data suggesting a potential utility of IHT for management of prediabetes patients.
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Affiliation(s)
| | - Alla G Portnychenko
- 1 Bogomoletz Institute of Physiology, Kiev 01024, Ukraine.,2 ICAMER, National Academy of Sciences of Ukraine, Kiev 03680, Ukraine
| | - Tetiana I Drevytska
- 1 Bogomoletz Institute of Physiology, Kiev 01024, Ukraine.,2 ICAMER, National Academy of Sciences of Ukraine, Kiev 03680, Ukraine
| | - Vladimir I Portnichenko
- 1 Bogomoletz Institute of Physiology, Kiev 01024, Ukraine.,2 ICAMER, National Academy of Sciences of Ukraine, Kiev 03680, Ukraine
| | - Lei Xi
- 3 Pauley Heart Center, Department of Internal Medicine, Virginia Commonwealth University, Richmond, VA 23298, USA.,4 School of Sports Medicine and Health, Chengdu Sport University, Chengdu 610041, China
| | - Egor Egorov
- 5 CELLGYM Technologies GmbH, Berlin 10623, Germany
| | - Anna V Gavalko
- 6 D.F. Chebotarev State Institute of Gerontology, Kiev 04114, Ukraine
| | | | | | - Valeriy B Shatylo
- 6 D.F. Chebotarev State Institute of Gerontology, Kiev 04114, Ukraine
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10
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McGee-Lawrence ME, Wenger KH, Misra S, Davis CL, Pollock NK, Elsalanty M, Ding K, Isales CM, Hamrick MW, Wosiski-Kuhn M, Arounleut P, Mattson MP, Cutler RG, Yu JC, Stranahan AM. Whole-Body Vibration Mimics the Metabolic Effects of Exercise in Male Leptin Receptor-Deficient Mice. Endocrinology 2017; 158:1160-1171. [PMID: 28323991 PMCID: PMC5460837 DOI: 10.1210/en.2016-1250] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Accepted: 02/02/2017] [Indexed: 01/12/2023]
Abstract
Whole-body vibration (WBV) has gained attention as a potential exercise mimetic, but direct comparisons with the metabolic effects of exercise are scarce. To determine whether WBV recapitulates the metabolic and osteogenic effects of physical activity, we exposed male wild-type (WT) and leptin receptor-deficient (db/db) mice to daily treadmill exercise (TE) or WBV for 3 months. Body weights were analyzed and compared with WT and db/db mice that remained sedentary. Glucose and insulin tolerance testing revealed comparable attenuation of hyperglycemia and insulin resistance in db/db mice following TE or WBV. Both interventions reduced body weight in db/db mice and normalized muscle fiber diameter. TE or WBV also attenuated adipocyte hypertrophy in visceral adipose tissue and reduced hepatic lipid content in db/db mice. Although the effects of leptin receptor deficiency on cortical bone structure were not eliminated by either intervention, exercise and WBV increased circulating levels of osteocalcin in db/db mice. In the context of increased serum osteocalcin, the modest effects of TE and WBV on bone geometry, mineralization, and biomechanics may reflect subtle increases in osteoblast activity in multiple areas of the skeleton. Taken together, these observations indicate that WBV recapitulates the effects of exercise on metabolism in type 2 diabetes.
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MESH Headings
- Adipocytes/metabolism
- Adipocytes/pathology
- Animals
- Body Weight
- Diabetes Mellitus, Experimental/genetics
- Diabetes Mellitus, Experimental/metabolism
- Diabetes Mellitus, Experimental/therapy
- Diabetes Mellitus, Type 2/genetics
- Diabetes Mellitus, Type 2/metabolism
- Diabetes Mellitus, Type 2/therapy
- Energy Metabolism/genetics
- Male
- Mice
- Mice, Inbred C57BL
- Mice, Knockout
- Muscular Atrophy/genetics
- Muscular Atrophy/metabolism
- Muscular Atrophy/prevention & control
- Physical Conditioning, Animal/physiology
- Receptors, Leptin/genetics
- Vibration/therapeutic use
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Affiliation(s)
- Meghan E. McGee-Lawrence
- Department of Cellular Biology and Anatomy, Medical College of Georgia, Augusta University, Augusta, Georgia 30912
| | - Karl H. Wenger
- Department of Orthopedic Surgery, Medical College of Georgia, Augusta University, Augusta, Georgia 30912
| | - Sudipta Misra
- Department of Pediatrics, Gastroenterology Division, Medical College of Georgia, Augusta University, Augusta, Georgia 30912
| | - Catherine L. Davis
- Georgia Prevention Institute, Medical College of Georgia, Augusta University, Augusta, Georgia 30912
- Physiology Department, Medical College of Georgia, Augusta University, Augusta, Georgia 30912
| | - Norman K. Pollock
- Georgia Prevention Institute, Medical College of Georgia, Augusta University, Augusta, Georgia 30912
- Physiology Department, Medical College of Georgia, Augusta University, Augusta, Georgia 30912
| | - Mohammed Elsalanty
- Department of Oral Biology, Medical College of Georgia, Augusta University, Augusta, Georgia 30912
| | - Kehong Ding
- Department of Neuroscience and Regenerative Medicine, Medical College of Georgia, Augusta University, Augusta, Georgia 30912
| | - Carlos M. Isales
- Department of Neuroscience and Regenerative Medicine, Medical College of Georgia, Augusta University, Augusta, Georgia 30912
| | - Mark W. Hamrick
- Department of Cellular Biology and Anatomy, Medical College of Georgia, Augusta University, Augusta, Georgia 30912
| | - Marlena Wosiski-Kuhn
- Physiology Department, Medical College of Georgia, Augusta University, Augusta, Georgia 30912
| | - Phonepasong Arounleut
- Department of Cellular Biology and Anatomy, Medical College of Georgia, Augusta University, Augusta, Georgia 30912
| | - Mark P. Mattson
- Laboratory of Neurosciences, National Institute on Aging Intramural Research Program, Baltimore, Maryland 21224
| | - Roy G. Cutler
- Laboratory of Neurosciences, National Institute on Aging Intramural Research Program, Baltimore, Maryland 21224
| | - Jack C. Yu
- Department of Surgery, Plastic Surgery Division, Medical College of Georgia, Augusta University, Augusta, Georgia 30912
| | - Alexis M. Stranahan
- Department of Neuroscience and Regenerative Medicine, Medical College of Georgia, Augusta University, Augusta, Georgia 30912
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