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Sun YD, Zhang H, Li YM, Han JJ. Abnormal metabolism in hepatic stellate cells: Pandora's box of MAFLD related hepatocellular carcinoma. Biochim Biophys Acta Rev Cancer 2024; 1879:189086. [PMID: 38342420 DOI: 10.1016/j.bbcan.2024.189086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 12/25/2023] [Accepted: 02/06/2024] [Indexed: 02/13/2024]
Abstract
Metabolic associated fatty liver disease (MAFLD) is a significant risk factor for the development of hepatocellular carcinoma (HCC). Hepatic stellate cells (HSCs), as key mediators in liver injury response, are believed to play a crucial role in the repair process of liver injury. However, in MAFLD patients, the normal metabolic and immunoregulatory mechanisms of HSCs become disrupted, leading to disturbances in the local microenvironment. Abnormally activated HSCs are heavily involved in the initiation and progression of HCC. The metabolic disorders and abnormal activation of HSCs not only initiate liver fibrosis but also contribute to carcinogenesis. In this review, we provide an overview of recent research progress on the relationship between the abnormal metabolism of HSCs and the local immune system in the liver, elucidating the mechanisms of immune imbalance caused by abnormally activated HSCs in MAFLD patients. Based on this understanding, we discuss the potential and challenges of metabolic-based and immunology-based mechanisms in the treatment of MAFLD-related HCC, with a specific focus on the role of HSCs in HCC progression and their potential as targets for anti-cancer therapy. This review aims to enhance researchers' understanding of the importance of HSCs in maintaining normal liver function and highlights the significance of HSCs in the progression of MAFLD-related HCC.
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Affiliation(s)
- Yuan-Dong Sun
- Department of Interventional Radiology, Shandong Cancer Hospital and Institute Affiliated Shandong First Medical University, Shandong Academy of Medical Sciences, China
| | - Hao Zhang
- Department of Interventional Radiology, Shandong Cancer Hospital and Institute Affiliated Shandong First Medical University, Shandong Academy of Medical Sciences, China
| | - Yuan-Min Li
- NHC Key Laboratory of Transplant Engineering and Immunology, Frontiers Science Center for Disease-related Molecular Network, West China Hospital of Sichuan University, China
| | - Jian-Jun Han
- Department of Interventional Radiology, Shandong Cancer Hospital and Institute Affiliated Shandong First Medical University, Shandong Academy of Medical Sciences, China.
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2
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Ryu H, Jeong HH, Lee S, Lee MK, Kim MJ, Lee B. LPS-Induced Modifications in Macrophage Transcript and Secretion Profiles Are Linked to Muscle Wasting and Glucose Intolerance. J Microbiol Biotechnol 2024; 34:270-279. [PMID: 38044678 PMCID: PMC10940789 DOI: 10.4014/jmb.2309.09037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 11/17/2023] [Accepted: 11/22/2023] [Indexed: 12/05/2023]
Abstract
Macrophages are versatile immune cells that play crucial roles in tissue repair, immune defense, and the regulation of immune responses. In the context of skeletal muscle, they are vital for maintaining muscle homeostasis but macrophage-induced chronic inflammation can lead to muscle dysfunction, resulting in skeletal muscle atrophy characterized by reduced muscle mass and impaired insulin regulation and glucose uptake. Although the involvement of macrophage-secreted factors in inflammation-induced muscle atrophy is well-established, the precise intracellular signaling pathways and secretion factors affecting skeletal muscle homeostasis require further investigation. This study aimed to explore the regulation of macrophage-secreted factors and their impact on muscle atrophy and glucose metabolism. By employing RNA sequencing (RNA-seq) and proteome array, we uncovered that factors secreted by lipopolysaccharide (LPS)-stimulated macrophages upregulated markers of muscle atrophy and pro-inflammatory cytokines, while concurrently reducing glucose uptake in muscle cells. The RNA-seq analysis identified alterations in gene expression patterns associated with immune system pathways and nutrient metabolism. The utilization of gene ontology (GO) analysis and proteome array with macrophage-conditioned media revealed the involvement of macrophage-secreted cytokines and chemokines associated with muscle atrophy. These findings offer valuable insights into the regulatory mechanisms of macrophage-secreted factors and their contributions to muscle-related diseases.
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Affiliation(s)
- Heeyeon Ryu
- Department of Food Science and Nutrition, Pukyong National University, Busan 48513, Republic of Korea
| | - Hyeon Hak Jeong
- Department of Smart Green Technology Engineering, Pukyong National University, Busan 48513, Republic of Korea
| | - Seungjun Lee
- Department of Food Science and Nutrition, Pukyong National University, Busan 48513, Republic of Korea
| | - Min-Kyeong Lee
- Department of Food Science and Nutrition, Pukyong National University, Busan 48513, Republic of Korea
| | - Myeong-Jin Kim
- Department of Food Science and Nutrition, Pukyong National University, Busan 48513, Republic of Korea
| | - Bonggi Lee
- Department of Food Science and Nutrition, Pukyong National University, Busan 48513, Republic of Korea
- Department of Smart Green Technology Engineering, Pukyong National University, Busan 48513, Republic of Korea
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3
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Król-Kulikowska M, Urbanowicz I, Kepinska M. The Concentrations of Interleukin-6, Insulin, and Glucagon in the Context of Obesity and Type 2 Diabetes and Single Nucleotide Polymorphisms in IL6 and INS Genes. J Obes 2024; 2024:7529779. [PMID: 38250713 PMCID: PMC10798838 DOI: 10.1155/2024/7529779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 12/11/2023] [Accepted: 12/30/2023] [Indexed: 01/23/2024] Open
Abstract
Obesity and diabetes are a problem of modern medicine. Although the environmental factors contributing to the development of these diseases are widely known, research into genetic factors is still ongoing. At the same time, the role of inflammation in the pathophysiology of obesity and diabetes is increasingly emphasized. Therefore, the purpose of this study was to investigate the influence of two selected polymorphisms (rs1800795 and rs3842729) on the development of obesity and type 2 diabetes. In this study, 118 participants were examined, including a control group (nonobese and nondiabetic group), an obese group, and a diabetic group. Genotype analysis was performed using the PCR-RFLP method. It has been shown that in patients with the G/G genotype within the rs1800795 polymorphism (IL6), the chance of developing type 2 diabetes is several times lower compared to patients with the G/C and C/C genotypes. However, the rs3842729 polymorphism (INS) does not directly affect the risk of obesity or type 2 diabetes (T2D), although elevated insulin concentrations have been observed in obese and diabetic patients. These results confirm the impact of the rs1800795 polymorphism on the development of diabetes; however, this relationship is more complex and requires further research on other factors.
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Affiliation(s)
- Magdalena Król-Kulikowska
- Department of Pharmaceutical Biochemistry, Faculty of Pharmacy, Wroclaw Medical University, Wroclaw 50-556, Poland
| | - Iwona Urbanowicz
- Department of Clinical Chemistry and Laboratory Hematology, Faculty of Pharmacy, Wroclaw Medical University, Wroclaw 50-556, Poland
| | - Marta Kepinska
- Department of Pharmaceutical Biochemistry, Faculty of Pharmacy, Wroclaw Medical University, Wroclaw 50-556, Poland
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Lee MK, Ryu H, Van JY, Kim MJ, Jeong HH, Jung WK, Jun JY, Lee B. The Role of Macrophage Populations in Skeletal Muscle Insulin Sensitivity: Current Understanding and Implications. Int J Mol Sci 2023; 24:11467. [PMID: 37511225 PMCID: PMC10380189 DOI: 10.3390/ijms241411467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 07/07/2023] [Accepted: 07/13/2023] [Indexed: 07/30/2023] Open
Abstract
Insulin resistance is a crucial factor in the development of type 2 diabetes mellitus (T2DM) and other metabolic disorders. Skeletal muscle, the body's largest insulin-responsive tissue, plays a significant role in the pathogenesis of T2DM due to defects in insulin signaling. Recently, there has been growing evidence that macrophages, immune cells essential for tissue homeostasis and injury response, also contribute to the development of skeletal muscle insulin resistance. This review aims to summarize the current understanding of the role of macrophages in skeletal muscle insulin resistance. Firstly, it provides an overview of the different macrophage populations present in skeletal muscle and their specific functions in the development of insulin resistance. Secondly, it examines the underlying mechanisms by which macrophages promote or alleviate insulin resistance in skeletal muscle, including inflammation, oxidative stress, and altered metabolism. Lastly, the review discusses potential therapeutic strategies targeting macrophages to improve skeletal muscle insulin sensitivity and metabolic health.
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Affiliation(s)
- Min-Kyeong Lee
- Department of Food Science and Nutrition, Pukyong National University, Busan 48513, Republic of Korea; (M.-K.L.); (H.R.)
| | - Heeyeon Ryu
- Department of Food Science and Nutrition, Pukyong National University, Busan 48513, Republic of Korea; (M.-K.L.); (H.R.)
| | - Ji Yun Van
- Department of Smart Green Technology Engineering, Pukyong National University, Busan 48513, Republic of Korea; (J.Y.V.)
| | - Myeong-Jin Kim
- Department of Food Science and Nutrition, Pukyong National University, Busan 48513, Republic of Korea; (M.-K.L.); (H.R.)
| | - Hyeon Hak Jeong
- Department of Smart Green Technology Engineering, Pukyong National University, Busan 48513, Republic of Korea; (J.Y.V.)
| | - Won-Kyo Jung
- Division of Biomedical Engineering and Research Center for Marine Integrated Bionics Technology, Pukyong National University, Busan 48513, Republic of Korea;
| | - Joo Yun Jun
- Neuroscience and Cognitive Science Program, University of Maryland, College Park, MD 20742, USA;
| | - Bonggi Lee
- Department of Food Science and Nutrition, Pukyong National University, Busan 48513, Republic of Korea; (M.-K.L.); (H.R.)
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Nutrition Interventions of Herbal Compounds on Cellular Senescence. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:1059257. [PMID: 35528514 PMCID: PMC9068308 DOI: 10.1155/2022/1059257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/11/2021] [Revised: 11/01/2021] [Accepted: 04/02/2022] [Indexed: 01/10/2023]
Abstract
When cells undergo large-scale senescence, organ aging ensues, resulting in irreversible organ pathology and organismal aging. The study of senescence in cells provides an important avenue to understand the factors that influence aging and can be used as one of the useful tools for examining age-related human diseases. At present, many herbal compounds have shown effects on delaying cell senescence. This review summarizes the main characteristics and mechanisms of cell senescence, age-related diseases, and the recent progress on the natural products targeting cellular senescence, with the aim of providing insights to aid the clinical management of age-related diseases.
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Asoudeh F, Dashti F, Raeesi S, Heshmat R, Bidkhori M, Jalilian Z, Hashemi R. Inflammatory cytokines and sarcopenia in Iranian adults-results from SARIR study. Sci Rep 2022; 12:5471. [PMID: 35361818 PMCID: PMC8971448 DOI: 10.1038/s41598-022-09139-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2021] [Accepted: 01/25/2022] [Indexed: 12/20/2022] Open
Abstract
Some studies suggested the effects of inflammatory cytokines in reducing muscle mass and muscle strength and, performance. This study aimed to compare pro-inflammatory cytokines in sarcopenic and non-sarcopenic subjects. 120 men and women were selected out from the cross-sectional study ‘sarcopenia and its determinants among Iranian elders’ (SARIR). Sarcopenia was defined based on the first ‘European Working Group on sarcopenia in older people’ (EWGSOP1) guidelines. A fasting blood sample was taken from each participant to measure serum high-sensitivity C-reactive protein (hs-CRP), Interleukin 6 (IL-6), and tumor necrosis factor α (TNFα). A total of 120 participants were included in this study. Mean age was 66.7 ± 7.7 years and mean body mass index (BMI) was 27.3 ± 4.2 kg/m2. Forty participants had the criteria of EWGSOP1 sarcopenia. A statistically significant difference was seen between normal and abnormal groups of muscle strength in hs-CRP (P-value = 0.04). Furthermore, we did not observe any remarkable association between inflammatory biomarkers including IL-6 (OR 1.15; 95% CI 0.31–4.28), TNF-α (OR 0.68; 95% CI 0.17–2.77), and hs-CRP (OR 2.39; 95% CI 0.87–6.55) and the presence of sarcopenia even after controlling for plausible confounders. We found that inflammatory biomarkers level was not associated with odds of sarcopenia. The lack of correlation between inflammatory cytokines and sarcopenia could be due to the participants’ age and genetics. Future studies are required to confirm these findings.
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Affiliation(s)
- Farzaneh Asoudeh
- Department of Clinical Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran
| | - Fatemeh Dashti
- Department of Clinical Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran. .,Department of Geriatric Medicine, Ziaeian Hospital, Tehran University of Medical Sciences (TUMS), Abuzar St., P.O. Box 14155-6117, Tehran, Iran.
| | - Shima Raeesi
- Department of Geriatric Medicine, Ziaeian Hospital, Tehran University of Medical Sciences (TUMS), Abuzar St., P.O. Box 14155-6117, Tehran, Iran
| | - Ramin Heshmat
- Endocrinology and Metabolism Research Center and Chronic Disease Research Center, Tehran University of Medical Science, Tehran, Iran
| | - Mohammad Bidkhori
- Department of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Zahra Jalilian
- Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Rezvan Hashemi
- Department of Geriatric Medicine, Ziaeian Hospital, Tehran University of Medical Sciences (TUMS), Abuzar St., P.O. Box 14155-6117, Tehran, Iran.
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Wang YY, Lin SY, Chang CY, Wu CC, Chen WY, Liao SL, Chen YF, Wang WY, Chen CJ. Jak2 Inhibitor AG490 Improved Poststroke Central and Peripheral Inflammation and Metabolic Abnormalities in a Rat Model of Ischemic Stroke. Antioxidants (Basel) 2021; 10:antiox10121958. [PMID: 34943061 PMCID: PMC8750281 DOI: 10.3390/antiox10121958] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2021] [Revised: 12/03/2021] [Accepted: 12/06/2021] [Indexed: 12/15/2022] Open
Abstract
Poststroke hyperglycemia and inflammation have been implicated in the pathogenesis of stroke. Janus Kinase 2 (Jak2), a catalytic signaling component for cytokine receptors such as Interleukin-6 (IL-6), has inflammatory and metabolic properties. This study aimed to investigate the roles of Jak2 in poststroke inflammation and metabolic abnormality in a rat model of permanent cerebral ischemia. Pretreatment with Jak2 inhibitor AG490 ameliorated neurological deficit, brain infarction, edema, oxidative stress, inflammation, caspase-3 activation, and Zonula Occludens-1 (ZO-1) reduction. Moreover, in injured cortical tissues, Tumor Necrosis Factor-α, IL-1β, and IL-6 levels were reduced with concurrent decreased NF-κB p65 phosphorylation, Signal Transducers and Activators of Transcription 3 phosphorylation, Ubiquitin Protein Ligase E3 Component N-Recognin 1 expression, and Matrix Metalloproteinase activity. In the in vitro study on bEnd.3 endothelial cells, AG490 diminished IL-6-induced endothelial barrier disruption by decreasing ZO-1 decline. Metabolically, administration of AG490 lowered fasting glucose, with improvements in glucose intolerance, plasma-free fatty acids, and plasma C Reactive Proteins. In conclusion, AG490 improved the inflammation and oxidative stress of neuronal, hepatic, and muscle tissues of stroke rats as well as impairing insulin signaling in the liver and skeletal muscles. Therefore, Jak2 blockades may have benefits for combating poststroke central and peripheral inflammation, and metabolic abnormalities.
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Affiliation(s)
- Ya-Yu Wang
- Department of Family Medicine, Taichung Veterans General Hospital, Taichung City 407, Taiwan;
| | - Shih-Yi Lin
- Institute of Clinical Medicine, National Yang-Ming Chiao Tung University, Taipei City 112, Taiwan;
- Center for Geriatrics and Gerontology, Taichung Veterans General Hospital, Taichung City 407, Taiwan
| | - Cheng-Yi Chang
- Department of Surgery, Feng Yuan Hospital, Taichung City 420, Taiwan;
| | - Chih-Cheng Wu
- Department of Anesthesiology, Taichung Veterans General Hospital, Taichung City 407, Taiwan;
- Department of Financial Engineering, Providence University, Taichung City 433, Taiwan
- Department of Data Science and Big Data Analytics, Providence University, Taichung City 433, Taiwan
| | - Wen-Ying Chen
- Department of Veterinary Medicine, National Chung Hsing University, Taichung City 402, Taiwan;
| | - Su-Lan Liao
- Department of Medical Research, Taichung Veterans General Hospital, Taichung City 407, Taiwan;
| | - Yu-Fan Chen
- Department of Medical Laboratory Science, I-Shou University, Kaohsiung City 840, Taiwan;
| | - Wen-Yi Wang
- Department of Nursing, Hung Kuang University, Taichung City 433, Taiwan;
| | - Chun-Jung Chen
- Department of Medical Research, Taichung Veterans General Hospital, Taichung City 407, Taiwan;
- Department of Medical Laboratory Science and Biotechnology, China Medical University, Taichung City 404, Taiwan
- Correspondence: ; Tel.: +886-4-2359-2525 (ext. 4022)
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Kim JS, Galvão DA, Newton RU, Gray E, Taaffe DR. Exercise-induced myokines and their effect on prostate cancer. Nat Rev Urol 2021; 18:519-542. [PMID: 34158658 DOI: 10.1038/s41585-021-00476-y] [Citation(s) in RCA: 48] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/04/2021] [Indexed: 02/06/2023]
Abstract
Exercise is recognized by clinicians in the field of clinical oncology for its potential role in reducing the risk of certain cancers and in reducing the risk of disease recurrence and progression; yet, the underlying mechanisms behind this reduction in risk are not fully understood. Studies applying post-exercise blood serum directly to various types of cancer cell lines provide insight that exercise might have a role in inhibiting cancer growth via altered soluble and cell-free blood contents. Myokines, which are cytokines produced by muscle and secreted into the bloodstream, might offer multiple benefits to cellular metabolism (such as a reduction in insulin resistance, improved glucose uptake and reduced adiposity), and blood myokine levels can be altered with exercise. Alterations in the levels of myokines such as IL-6, IL-15, IL-10, irisin, secreted protein acidic risk in cysteine (SPARC), myostatin, oncostatin M and decorin might exert a direct inhibitory effect on cancer growth via inhibiting proliferation, promoting apoptosis, inducing cell-cycle arrest and inhibiting the epithermal transition to mesenchymal cells. The association of insulin resistance, hyperinsulinaemia and hyperlipidaemia with obesity can create a tumour-favourable environment; exercise-induced myokines can manipulate this environment by regulating adipose tissue and adipocytes. Exercise-induced myokines also have a critical role in increasing cytotoxicity and the infiltration of immune cells into the tumour.
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Affiliation(s)
- Jin-Soo Kim
- Exercise Medicine Research Institute, Edith Cowan University, Joondalup, WA, Australia.,School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA, Australia
| | - Daniel A Galvão
- Exercise Medicine Research Institute, Edith Cowan University, Joondalup, WA, Australia. .,School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA, Australia.
| | - Robert U Newton
- Exercise Medicine Research Institute, Edith Cowan University, Joondalup, WA, Australia.,School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA, Australia
| | - Elin Gray
- School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA, Australia
| | - Dennis R Taaffe
- Exercise Medicine Research Institute, Edith Cowan University, Joondalup, WA, Australia.,School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA, Australia
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Wang CR, Tsai HW. Anti- and non-tumor necrosis factor-α-targeted therapies effects on insulin resistance in rheumatoid arthritis, psoriatic arthritis and ankylosing spondylitis. World J Diabetes 2021; 12:238-260. [PMID: 33758645 PMCID: PMC7958474 DOI: 10.4239/wjd.v12.i3.238] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 01/07/2021] [Accepted: 01/22/2021] [Indexed: 02/06/2023] Open
Abstract
In addition to β-cell failure with inadequate insulin secretion, the crucial mechanism leading to establishment of diabetes mellitus (DM) is the resistance of target cells to insulin, i.e. insulin resistance (IR), indicating a requirement of beyond-normal insulin concentrations to maintain euglycemic status and an ineffective strength of transduction signaling from the receptor, downstream to the substrates of insulin action. IR is a common feature of most metabolic disorders, particularly type II DM as well as some cases of type I DM. A variety of human inflammatory disorders with increased levels of proinflammatory cytokines, including tumor necrosis factor (TNF)-α, interleukin (IL)-6 and IL-1β, have been reported to be associated with an increased risk of IR. Autoimmune-mediated arthritis conditions, including rheumatoid arthritis (RA), psoriatic arthritis (PsA) and ankylosing spondylitis (AS), with the involvement of proinflammatory cytokines as their central pathogenesis, have been demonstrated to be associated with IR, especially during the active disease state. There is an increasing trend towards using biologic agents and small molecule-targeted drugs to treat such disorders. In this review, we focus on the effects of anti-TNF-α- and non-TNF-α-targeted therapies on IR in patients with RA, PsA and AS. Anti-TNF-α therapy, IL-1 blockade, IL-6 antagonist, Janus kinase inhibitor and phospho-diesterase type 4 blocker can reduce IR and improve diabetic hyper-glycemia in autoimmune-mediated arthritis.
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Affiliation(s)
- Chrong-Reen Wang
- Department of Internal Medicine, National Cheng Kung University Hospital, Tainan 70403, Taiwan
| | - Hung-Wen Tsai
- Department of Pathology, National Cheng Kung University Hospital, Tainan 70403, Taiwan
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Mann G, Adegoke OAJ. Effects of ketoisocaproic acid and inflammation on glucose transport in muscle cells. Physiol Rep 2021; 9:e14673. [PMID: 33400857 PMCID: PMC7785050 DOI: 10.14814/phy2.14673] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 10/28/2020] [Accepted: 10/28/2020] [Indexed: 01/01/2023] Open
Abstract
Branched-chain amino acids (BCAAs) are regulators of protein metabolism. However, elevated levels of BCAAs and their metabolites are linked to insulin resistance. We previously demonstrated that the leucine metabolite, α-ketoisocaproate (KIC), inhibited insulin-stimulated glucose transport in myotubes. Like KIC, inflammatory factors are implicated in the development of insulin resistance. Here, we analyzed the effect of KIC and inflammatory factors (homocysteine [50 μM], TNF-α [10 ng/ml], and interleukin 6 (IL-6) [10 ng/ml]) on myotubes. Although KIC suppressed insulin-stimulated glucose transport, addition of the inflammatory factors did not worsen this effect. Depletion of branched-chain aminotransferase 2, the enzyme that catalyzes the conversion of leucine into KIC, abrogated the effect of KIC and the inflammatory factors. The effect of insulin on AKTS473 and S6K1T389 phosphorylation was not modified by treatments. There were no treatment effects on glycogen synthase phosphorylation. Depletion of E1α subunit of branched-chain α-keto acid dehydrogenase, the enzyme that catalyzes the oxidative decarboxylation of KIC, suppressed insulin-stimulated glucose transport, especially in cells incubated in KIC. Thus, defects in BCAA catabolism are contributory to insulin resistance of glucose transport in myotubes, especially in the presence of KIC. Interventions that increase BCAA catabolism may promote muscle glucose utilization and improve insulin resistance and its sequelae.
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Affiliation(s)
- Gagandeep Mann
- Kinesiology and Health Science and Muscle Health Research CentreYork UniversityTorontoONCanada
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11
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Ahmed F, Sarsenbayeva A, Katsogiannos P, Aguer C, Pereira MJ. The effects of bisphenol A and bisphenol S on adipokine expression and glucose metabolism in human adipose tissue. Toxicology 2020; 445:152600. [PMID: 32976960 DOI: 10.1016/j.tox.2020.152600] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 09/17/2020] [Accepted: 09/18/2020] [Indexed: 11/16/2022]
Abstract
PURPOSE The environmental endocrine disruptors, bisphenol A (BPA) and bisphenol S (BPS) are associated with the development of type 2 diabetes. We aim to study the effects of BPA or BPS exposure on adipokine expression in human adipose tissue and on adipocyte glucose uptake. METHODS Human subcutaneous adipose tissue was treated for 24 or 72 h with environmentally-relevant and supraphysiological concentrations of BPA or BPS (1-104 nM). Following exposure, gene expression of proinflammatory cytokines, adipokines, and estrogen receptors was measured in adipose tissue. Glucose uptake and the insulin signalling pathway were analyzed in isolated adipocytes following adipose tissue culture with BPA for 24 h. RESULTS Adipose tissue treated with BPA for 24 h had reduced expression of the proinflammatory genes (IL6, IL1B, TNFA) and adipokines (ADIPOQ, FABP4). BPA and BPS had no effect on the expression of other proinflammatory genes (IL33), adipokines (LEP), or receptors (ESR1, ESR2) after 72-h exposure. Adipose tissue treated with environmentally-relevant concentrations of BPA for 24 h had reduced insulin-stimulated glucose uptake, without altered gene and protein levels of key insulin signalling pathway markers. CONCLUSIONS We found that human adipose tissue treated with environmentally-relevant concentrations of BPA for 24 h, but not BPS, reduced expression of proinflammatory genes and adipokines. Furthermore, BPA reduced glucose uptake in adipocytes independently of insulin signalling. Such mechanisms can contribute to the development of insulin resistance associated with BPA exposure.
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Affiliation(s)
- Fozia Ahmed
- Institut du Savoir Montfort-recherche, Ottawa, Canada; Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, Canada
| | - Assel Sarsenbayeva
- Clinical Diabetes and Metabolism, Department of Medical Sciences, Uppsala University, Rudbecklaboratoriet hus R3, våning 2, Dag Hammarskjölds väg 20, 751 85 Uppsala, Sweden
| | - Petros Katsogiannos
- Clinical Diabetes and Metabolism, Department of Medical Sciences, Uppsala University, Rudbecklaboratoriet hus R3, våning 2, Dag Hammarskjölds väg 20, 751 85 Uppsala, Sweden
| | - Céline Aguer
- Institut du Savoir Montfort-recherche, Ottawa, Canada; Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, Canada; School of Human Kinetics, Faculty of Health Sciences, University of Ottawa, Canada; Interdisciplinary School of Health Sciences, Faculty of Health Sciences, University of Ottawa, Ottawa, Canada.
| | - Maria J Pereira
- Clinical Diabetes and Metabolism, Department of Medical Sciences, Uppsala University, Rudbecklaboratoriet hus R3, våning 2, Dag Hammarskjölds väg 20, 751 85 Uppsala, Sweden.
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12
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Kang W, Zhang K, Tong T, Park T. Improved Glucose Intolerance through a Distinct Mouse Olfactory Receptor 23-Induced Signaling Pathway Mediating Glucose Uptake in Myotubes and Adipocytes. Mol Nutr Food Res 2020; 64:e1901329. [PMID: 32918394 DOI: 10.1002/mnfr.201901329] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
SCOPE It is aimed to determine the role of mouse olfactory receptor 23 (MOR23) in regulation of glucose uptake in myotubes and adipocytes and investigate whether administration of a possible MOR23 ligand, α-cedrene, attenuates the high fat diet (HFD)-induced glucose intolerance by enhancing the OR-mediated signaling pathway in mice. METHODS AND RESULTS MOR23 is genetically inactivated by specific small interfering RNA in C2C12 myotubes and 3T3-L1 adipocytes and stimulated with α-cedrene under both basal and insulin-stimulated conditions. In addition, Male C57BL/6N mice are fed a normal diet, HFD, or HFD supplemented with 0.2% α-cedrene. In C2C12 myotubes and 3T3-L1 adipocytes, genetic inactivation of MOR23 significantly decrease glucose uptake and MOR23 downstream signaling under both basal and insulin-stimulated conditions. On the other hand, α-cedrene-mediated MOR23 stimulation results in increased glucose uptake and upregulation of MOR23 signaling molecules, absent in MOR23-depleted myotubes and adipocytes. Moreover, in mice, α-cedrene administration ameliorates HFD-induced glucose intolerance. Activation of MOR23 signaling cascade is also confirmed in basal and insulin stimulated skeletal muscles and adipose tissues of α-cedrene-treated mice. CONCLUSIONS These findings suggest that MOR23 is a novel factor for the regulation of glucose uptake and whole-body glucose homeostasis and has therapeutic potential for diabetes treatment.
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Affiliation(s)
- Wesuk Kang
- Department of Food and Nutrition, Brain Korea 21 PLUS Project, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, South Korea
| | - Kelun Zhang
- Department of Food and Nutrition, Brain Korea 21 PLUS Project, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, South Korea
| | - Tao Tong
- Department of Food and Nutrition, Brain Korea 21 PLUS Project, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, South Korea
| | - Taesun Park
- Department of Food and Nutrition, Brain Korea 21 PLUS Project, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, South Korea
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13
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Blasetti Fantauzzi C, Iacobini C, Menini S, Vitale M, Sorice GP, Mezza T, Cinti S, Giaccari A, Pugliese G. Galectin-3 gene deletion results in defective adipose tissue maturation and impaired insulin sensitivity and glucose homeostasis. Sci Rep 2020; 10:20070. [PMID: 33208796 PMCID: PMC7675972 DOI: 10.1038/s41598-020-76952-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Accepted: 10/26/2020] [Indexed: 12/11/2022] Open
Abstract
Adiposopathy is a pathological adipose tissue (AT) response to overfeeding characterized by reduced AT expandability due to impaired adipogenesis, which favors inflammation, insulin resistance (IR), and abnormal glucose regulation. However, it is unclear whether defective adipogenesis causes metabolic derangement also independently of an increased demand for fat storage. As galectin-3 has been implicated in both adipocyte differentiation and glucose homeostasis, we tested this hypothesis in galectin-3 knockout (Lgal3−/−) mice fed a standard chow. In vitro, Lgal3−/− adipocyte precursors showed impaired terminal differentiation (maturation). Two-month-old Lgal3−/− mice showed impaired AT maturation, with reduced adipocyte size and expression of adipogenic genes, but unchanged fat mass and no sign of adipocyte degeneration/death or ectopic fat accumulation. AT immaturity was associated with AT and whole-body inflammation and IR, glucose intolerance, and hyperglycemia. Five-month-old Lgal3−/− mice exhibited a more mature AT phenotype, with no difference in insulin sensitivity and expression of inflammatory cytokines versus WT animals, though abnormal glucose homeostasis persisted and was associated with reduced β-cell function. These data show that adipogenesis capacity per se affects AT function, insulin sensitivity, and glucose homeostasis independently of increased fat intake, accumulation and redistribution, thus uncovering a direct link between defective adipogenesis, IR and susceptibility to diabetes.
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Affiliation(s)
- Claudia Blasetti Fantauzzi
- Department of Clinical and Molecular Medicine, "La Sapienza" University, Via di Grottarossa, 1035-1039, 00189, Rome, Italy
| | - Carla Iacobini
- Department of Clinical and Molecular Medicine, "La Sapienza" University, Via di Grottarossa, 1035-1039, 00189, Rome, Italy
| | - Stefano Menini
- Department of Clinical and Molecular Medicine, "La Sapienza" University, Via di Grottarossa, 1035-1039, 00189, Rome, Italy
| | - Martina Vitale
- Department of Clinical and Molecular Medicine, "La Sapienza" University, Via di Grottarossa, 1035-1039, 00189, Rome, Italy
| | - Gian Pio Sorice
- Centre for Endocrine and Metabolic Diseases, Fondazione Policlinico Universitario A. Gemelli IRCCS, Catholic University, Rome, Italy
| | - Teresa Mezza
- Centre for Endocrine and Metabolic Diseases, Fondazione Policlinico Universitario A. Gemelli IRCCS, Catholic University, Rome, Italy
| | - Saverio Cinti
- Department of Experimental and Clinical Medicine, Center of Obesity, University of Ancona (Politecnica delle Marche), Ancona, Italy
| | - Andrea Giaccari
- Centre for Endocrine and Metabolic Diseases, Fondazione Policlinico Universitario A. Gemelli IRCCS, Catholic University, Rome, Italy
| | - Giuseppe Pugliese
- Department of Clinical and Molecular Medicine, "La Sapienza" University, Via di Grottarossa, 1035-1039, 00189, Rome, Italy.
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14
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Scheithauer TPM, Rampanelli E, Nieuwdorp M, Vallance BA, Verchere CB, van Raalte DH, Herrema H. Gut Microbiota as a Trigger for Metabolic Inflammation in Obesity and Type 2 Diabetes. Front Immunol 2020; 11:571731. [PMID: 33178196 PMCID: PMC7596417 DOI: 10.3389/fimmu.2020.571731] [Citation(s) in RCA: 237] [Impact Index Per Article: 59.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Accepted: 09/11/2020] [Indexed: 12/12/2022] Open
Abstract
The gut microbiota has been linked to the development of obesity and type 2 diabetes (T2D). The underlying mechanisms as to how intestinal microbiota may contribute to T2D are only partly understood. It becomes progressively clear that T2D is characterized by a chronic state of low-grade inflammation, which has been linked to the development of insulin resistance. Here, we review the current evidence that intestinal microbiota, and the metabolites they produce, could drive the development of insulin resistance in obesity and T2D, possibly by initiating an inflammatory response. First, we will summarize major findings about immunological and gut microbial changes in these metabolic diseases. Next, we will give a detailed view on how gut microbial changes have been implicated in low-grade inflammation. Lastly, we will critically discuss clinical studies that focus on the interaction between gut microbiota and the immune system in metabolic disease. Overall, there is strong evidence that the tripartite interaction between gut microbiota, host immune system and metabolism is a critical partaker in the pathophysiology of obesity and T2D.
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Affiliation(s)
- Torsten P M Scheithauer
- Department of Internal Medicine, Amsterdam University Medical Center (UMC), Vrije Universiteit (VU) University Medical Center, Amsterdam, Netherlands.,Department of Experimental Vascular Medicine, Amsterdam University Medical Center (UMC), Academic Medical Center, Amsterdam, Netherlands
| | - Elena Rampanelli
- Department of Experimental Vascular Medicine, Amsterdam University Medical Center (UMC), Academic Medical Center, Amsterdam, Netherlands
| | - Max Nieuwdorp
- Department of Internal Medicine, Amsterdam University Medical Center (UMC), Vrije Universiteit (VU) University Medical Center, Amsterdam, Netherlands.,Department of Experimental Vascular Medicine, Amsterdam University Medical Center (UMC), Academic Medical Center, Amsterdam, Netherlands
| | - Bruce A Vallance
- Division of Gastroenterology, Department of Pediatrics, Child and Family Research Institute, Vancouver, BC, Canada
| | - C Bruce Verchere
- Department of Surgery, University of British Columbia and BC Children's Hospital Research Institute, Vancouver, BC, Canada
| | - Daniël H van Raalte
- Department of Internal Medicine, Amsterdam University Medical Center (UMC), Vrije Universiteit (VU) University Medical Center, Amsterdam, Netherlands.,Department of Experimental Vascular Medicine, Amsterdam University Medical Center (UMC), Academic Medical Center, Amsterdam, Netherlands
| | - Hilde Herrema
- Department of Experimental Vascular Medicine, Amsterdam University Medical Center (UMC), Academic Medical Center, Amsterdam, Netherlands
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15
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Hoevenaar M, Goossens D, Roorda J. Angiotensin-converting enzyme 2, the complement system, the kallikrein-kinin system, type-2 diabetes, interleukin-6, and their interactions regarding the complex COVID-19 pathophysiological crossroads. J Renin Angiotensin Aldosterone Syst 2020; 21:1470320320979097. [PMID: 33283602 PMCID: PMC7724427 DOI: 10.1177/1470320320979097] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Accepted: 11/11/2020] [Indexed: 12/15/2022] Open
Abstract
Because of the current COVID-19-pandemic, the world is currently being held hostage in various lockdowns. ACE2 facilitates SARS-CoV-2 cell-entry, and is at the very center of several pathophysiological pathways regarding the RAAS, CS, KKS, T2DM, and IL-6. Their interactions with severe COVID-19 complications (e.g. ARDS and thrombosis), and potential therapeutic targets for pharmacological intervention, will be reviewed.
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Affiliation(s)
| | | | - Janne Roorda
- Medical Doctor, General Practice
van Dijk, Oisterwijk, The Netherlands
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16
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Activation of tyrosine phosphatase PTP1B in pyramidal neurons impairs endocannabinoid signaling by tyrosine receptor kinase trkB and causes schizophrenia-like behaviors in mice. Neuropsychopharmacology 2020; 45:1884-1895. [PMID: 32610340 PMCID: PMC7608138 DOI: 10.1038/s41386-020-0755-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 06/19/2020] [Accepted: 06/24/2020] [Indexed: 12/12/2022]
Abstract
Schizophrenia is a debilitating disorder affecting young adults displaying symptoms of cognitive impairment, anxiety, and early social isolation prior to episodes of auditory hallucinations. Cannabis use has been tied to schizophrenia-like symptoms, indicating that dysregulated endogenous cannabinoid signaling may be causally linked to schizophrenia. Previously, we reported that glutamatergic neuron-selective ablation of Lmo4, an endogenous inhibitor of the tyrosine phosphatase PTP1B, impairs endocannabinoid (eCB) production from the metabotropic glutamate receptor mGluR5. These Lmo4-deficient mice display anxiety-like behaviors that are alleviated by local shRNA knockdown or pharmacological inhibition of PTP1B that restores mGluR5-dependent eCB production in the amygdala. Here, we report that these Lmo4-deficient mice also display schizophrenia-like behaviors: impaired working memory assessed in the Y maze and defective sensory gating by prepulse inhibition of the acoustic startle response. Modulation of inhibitory inputs onto layer 2/3 pyramidal neurons of the prefrontal cortex relies on eCB signaling from the brain-derived neurotrophic factor receptor trkB, rather than mGluR5, and this mechanism was defective in Lmo4-deficient mice. Genetic ablation of PTP1B in the glutamatergic neurons lacking Lmo4 restored tyrosine phosphorylation of trkB, trkB-mediated eCB signaling, and ameliorated schizophrenia-like behaviors. Pharmacological inhibition of PTP1B with trodusquemine also restored trkB phosphorylation and improved schizophrenia-like behaviors by restoring eCB signaling, since the CB1 receptor antagonist 1-(2,4-dichlorophenyl)-5-(4-iodophenyl)-4-methyl-N-1-piperidinyl-1H-pyrazole-3-carboxamide blocked this effect. Thus, activation of PTP1B in pyramidal neurons contributes to schizophrenia-like behaviors in Lmo4-deficient mice and genetic or pharmacological intervention targeting PTP1B ameliorates schizophrenia-related deficits.
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17
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Dysregulated Autophagy Mediates Sarcopenic Obesity and Its Complications via AMPK and PGC1α Signaling Pathways: Potential Involvement of Gut Dysbiosis as a Pathological Link. Int J Mol Sci 2020; 21:ijms21186887. [PMID: 32961822 PMCID: PMC7555990 DOI: 10.3390/ijms21186887] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 09/17/2020] [Accepted: 09/18/2020] [Indexed: 12/13/2022] Open
Abstract
Sarcopenic obesity (SOB), which is closely related to being elderly as a feature of aging, is recently gaining attention because it is associated with many other age-related diseases that present as altered intercellular communication, dysregulated nutrient sensing, and mitochondrial dysfunction. Along with insulin resistance and inflammation as the core pathogenesis of SOB, autophagy has recently gained attention as a significant mechanism of muscle aging in SOB. Known as important cellular metabolic regulators, the AMP-activated protein kinase (AMPK) and the peroxisome proliferator-activated receptor-gamma coactivator-1 alpha (PGC-1α) signaling pathways play an important role in autophagy, inflammation, and insulin resistance, as well as mutual communication between skeletal muscle, adipose tissue, and the liver. Furthermore, AMPK and PGC-1α signaling pathways are implicated in the gut microbiome-muscle axis. In this review, we describe the pathological link between SOB and its associated complications such as metabolic, cardiovascular, and liver disease, falls and fractures, osteoarthritis, pulmonary disease, and mental health via dysregulated autophagy controlled by AMPK and/or PGC-1α signaling pathways. Here, we propose potential treatments for SOB by modulating autophagy activity and gut dysbiosis based on plausible pathological links.
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18
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Chang TT, Yang HY, Chen C, Chen JW. CCL4 Inhibition in Atherosclerosis: Effects on Plaque Stability, Endothelial Cell Adhesiveness, and Macrophages Activation. Int J Mol Sci 2020; 21:ijms21186567. [PMID: 32911750 PMCID: PMC7555143 DOI: 10.3390/ijms21186567] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 09/03/2020] [Accepted: 09/05/2020] [Indexed: 01/01/2023] Open
Abstract
Atherosclerosis is an arterial inflammatory disease. The circulating level of the C-C chemokine ligand (CCL4) is increased in atherosclerotic patients. This study aimed to investigate whether CCL4 inhibition could retard the progression of atherosclerosis. In ApoE knockout mice, CCL4 antibody treatment reduced circulating interleukin-6 (IL-6) and tumor necrosis factor (TNF)-α levels and improved lipid profiles accompanied with upregulation of the liver X receptor. CCL4 inhibition reduced the atheroma areas and modified the progression of atheroma plaques, which consisted of a thicker fibrous cap with a reduced macrophage content and lower matrix metalloproteinase-2 and -9 expressions, suggesting the stabilization of atheroma plaques. Human coronary endothelial cells (HCAECs) and macrophages were stimulated with TNF-α or oxidized LDL (ox-LDL). The induced expression of E-selectin, vascular cell adhesion molecule-1 (VCAM-1), and intercellular adhesion molecule-1 (ICAM-1) were attenuated by the CCL4 antibody or CCL4 si-RNA. CCL4 inhibition reduced the adhesiveness of HCAECs, which is an early sign of atherogenesis. CCL4 blockade reduced the activity of metalloproteinase-2 and -9 and the production of TNF-α and IL-6 in stimulated macrophages. The effects of CCL4 inhibition on down-regulating adhesion and inflammation proteins were obtained through the nuclear factor kappa B (NFκB) signaling pathway. The direct inhibition of CCL4 stabilized atheroma and reduced endothelial and macrophage activation. CCL4 may be a novel therapeutic target for modulating atherosclerosis.
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Affiliation(s)
- Ting-Ting Chang
- Department and Institute of Pharmacology, School of Medicine, National Yang-Ming University, Taipei 11221, Taiwan; (T.-T.C.); (H.-Y.Y.); (C.C.)
| | - Hsin-Ying Yang
- Department and Institute of Pharmacology, School of Medicine, National Yang-Ming University, Taipei 11221, Taiwan; (T.-T.C.); (H.-Y.Y.); (C.C.)
| | - Ching Chen
- Department and Institute of Pharmacology, School of Medicine, National Yang-Ming University, Taipei 11221, Taiwan; (T.-T.C.); (H.-Y.Y.); (C.C.)
| | - Jaw-Wen Chen
- Department and Institute of Pharmacology, School of Medicine, National Yang-Ming University, Taipei 11221, Taiwan; (T.-T.C.); (H.-Y.Y.); (C.C.)
- Healthcare and Services Center, Taipei Veterans General Hospital, Taipei 11217, Taiwan
- Cardiovascular Research Center, National Yang-Ming University, Taipei 11221, Taiwan
- Department of Medicine, Taipei Veterans General Hospital, Taipei 11217, Taiwan
- Correspondence: ; Tel.: +886-2-28757730; Fax: +886-2-28711601
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19
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Ishiuchi-Sato Y, Hiraiwa E, Shinozaki A, Nedachi T. The effects of glucose and fatty acids on CXCL10 expression in skeletal muscle cells. Biosci Biotechnol Biochem 2020; 84:2448-2457. [PMID: 32877316 DOI: 10.1080/09168451.2020.1814127] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Skeletal muscles produce secretory factors termed as myokines, which alter physiological functions of target tissues. We recently identified C-X-C chemokine ligand 10 (CXCL10) as a novel myokine, which is downregulated in response to exercise. In the present study, we investigated whether the nutritional changes affect CXCL10 expression in mouse skeletal muscle. Expression of CXCL10 was evaluated in mice fed a normal diet or a high fat diet for 10 weeks. In animals fed on HFD, Cxcl10 expression was significantly induced in fast-twitched muscles, and was accompanied by increased blood glucose and free fatty acid levels. In vitro experiments using C2C12 myotubes suggested that the increased levels of glucose and palmitic acids directly enhanced CXCL10 expression. Interestingly, the effect of palmitic acids was attenuated by palmitoleic acids. Considering its potent angiostatic activity, induction of CXCL10 by nutritional changes may contribute to the impairment of microvascular networks in skeletal muscles.
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Affiliation(s)
| | - Erika Hiraiwa
- Faculty of Life Sciences, Toyo University , Gunma, Japan
| | | | - Taku Nedachi
- Graduate School of Life Sciences, Toyo University , Gunma, Japan.,Faculty of Life Sciences, Toyo University , Gunma, Japan
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20
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Gratal P, Lamuedra A, Medina JP, Bermejo-Álvarez I, Largo R, Herrero-Beaumont G, Mediero A. Purinergic System Signaling in Metainflammation-Associated Osteoarthritis. Front Med (Lausanne) 2020; 7:506. [PMID: 32984382 PMCID: PMC7485330 DOI: 10.3389/fmed.2020.00506] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Accepted: 07/22/2020] [Indexed: 12/18/2022] Open
Abstract
Inflammation triggered by metabolic imbalance, also called metainflammation, is low-grade inflammation caused by the components involved in metabolic syndrome (MetS), including central obesity and impaired glucose tolerance. This phenomenon is mainly due to excess nutrients and energy, and it contributes to the pathogenesis of osteoarthritis (OA). OA is characterized by the progressive degeneration of articular cartilage, which suffers erosion and progressively becomes thinner. Purinergic signaling is involved in several physiological and pathological processes, such as cell proliferation in development and tissue regeneration, neurotransmission and inflammation. Adenosine and ATP receptors, and other members of the signaling pathway, such as AMP-activated protein kinase (AMPK), are involved in obesity, type 2 diabetes (T2D) and OA progression. In this review, we focus on purinergic regulation in osteoarthritic cartilage and how different components of MetS, such as obesity and T2D, modulate the purinergic system in OA. In that regard, we describe the critical role in this disease of receptors, such as adenosine A2A receptor (A2AR) and ATP P2X7 receptor. Finally, we also assess how nucleotides regulate the inflammasome in OA.
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Affiliation(s)
- Paula Gratal
- Bone and Joint Research Unit, IIS-Fundación Jiménez Díaz UAM, Madrid, Spain
| | - Ana Lamuedra
- Bone and Joint Research Unit, IIS-Fundación Jiménez Díaz UAM, Madrid, Spain
| | - Juan Pablo Medina
- Bone and Joint Research Unit, IIS-Fundación Jiménez Díaz UAM, Madrid, Spain
| | | | - Raquel Largo
- Bone and Joint Research Unit, IIS-Fundación Jiménez Díaz UAM, Madrid, Spain
| | | | - Aránzazu Mediero
- Bone and Joint Research Unit, IIS-Fundación Jiménez Díaz UAM, Madrid, Spain
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21
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Sharma B, Dabur R. Role of Pro-inflammatory Cytokines in Regulation of Skeletal Muscle Metabolism: A Systematic Review. Curr Med Chem 2020; 27:2161-2188. [DOI: 10.2174/0929867326666181129095309] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 11/15/2018] [Accepted: 11/19/2018] [Indexed: 12/18/2022]
Abstract
Background:
Metabolic pathways perturbations lead to skeletal muscular atrophy in the
cachexia and sarcopenia due to increased catabolism. Pro-inflammatory cytokines induce the catabolic
pathways that impair the muscle integrity and function. Hence, this review primarily concentrates
on the effects of pro-inflammatory cytokines in regulation of skeletal muscle metabolism.
Objective:
This review will discuss the role of pro-inflammatory cytokines in skeletal muscles during
muscle wasting conditions. Moreover, the coordination among the pro-inflammatory cytokines
and their regulated molecular signaling pathways which increase the protein degradation will be
discussed.
Results:
During normal conditions, pro-inflammatory cytokines are required to balance anabolism
and catabolism and to maintain normal myogenesis process. However, during muscle wasting their
enhanced expression leads to marked destructive metabolism in the skeletal muscles. Proinflammatory
cytokines primarily exert their effects by increasing the expression of calpains and E3
ligases as well as of Nf-κB, required for protein breakdown and local inflammation. Proinflammatory
cytokines also locally suppress the IGF-1and insulin functions, hence increase the
FoxO activation and decrease the Akt function, the central point of carbohydrates lipid and protein
metabolism.
Conclusion:
Current advancements have revealed that the muscle mass loss during skeletal muscular
atrophy is multifactorial. Despite great efforts, not even a single FDA approved drug is available
in the market. It indicates the well-organized coordination among the pro-inflammatory cytokines
that need to be further understood and explored.
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Affiliation(s)
- Bhawana Sharma
- Department of Biochemistry, Maharshi Dayanand University, Rohtak, Haryana-124001, India
| | - Rajesh Dabur
- Department of Biochemistry, Maharshi Dayanand University, Rohtak, Haryana-124001, India
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22
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Wu PF, Chen GL. Interleukin-6 Response of C 2C 12 Myotubes Stimulated with Lipopolysaccharide and Lipoic Acid. J Interferon Cytokine Res 2020; 40:254-261. [PMID: 32176561 DOI: 10.1089/jir.2019.0170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Our previous study explored the dual effect of lipoic acid on the regulation of IL-6 expression in C2C12 myotubes. However, the specific mechanism remains unclear. To evaluate IL-6 signaling in skeletal muscle, pCMV6-IL-6 was overexpressed in C2C12 myotubes. The real-time quantitative polymerase chain reaction was used to detect mRNA expression. Immunohistochemistry and a DeadEnd colorimetric TUNEL system were used to detect IL-6 localization and analyze the apoptosis in IL-6-overexpressing cells, respectively. A caspase-3/CPP32 colorimetric assay and Western blotting were used to analyze caspase-3 activity and protein expression, respectively. Our results showed the overexpressed IL-6 was not only located in the cytosol but also on the intracellular side of the cell membrane. Moreover, the nucleus did not demonstrate IL-6 overexpression. The DeadEnd colorimetric apoptosis detection assay results demonstrated that apoptotic nuclei were present in IL-6-overexpressing cells. However, the overexpressed IL-6 failed to promote caspase-3 activity. Notably, the exogenous pyrogen lipopolysaccharide (LPS) significantly promoted IL-6 mRNA expression and caspase-3 activity but did not induce apoptotic cell formation. Moreover, lipoic acid significantly upregulated IL-6, IL-6Ra, and gp130 mRNA expression and significantly increased caspase-3 activity but did not induce apoptotic cell formation. Lipoic acid significantly increased the p-Akt level in untreated cells but not in LY294002-treated cells. Taken together, our results suggesting that the overexpressed IL-6-induced apoptosis may not be mediated by caspase-3. LPS-induced IL-6 mRNA expression may not be involved in IL-6 classical signaling or trans-signaling in C2C12 myotubes. Lipoic acid-induced IL-6 mRNA expression may be mediated by IL-6 classical signaling in C2C12 myotubes. [Figure: see text].
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Affiliation(s)
- Pei-Fung Wu
- Department of Kinesiology, Health and Leisure Studies, National University of Kaohsiung, Kaohsiung, Taiwan
| | - Guan-Lin Chen
- Department of Kinesiology, Health and Leisure Studies, National University of Kaohsiung, Kaohsiung, Taiwan
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23
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Lindsay KL, Buss C, Wadhwa PD, Entringer S. The Effect of a Maternal Mediterranean Diet in Pregnancy on Insulin Resistance is Moderated by Maternal Negative Affect. Nutrients 2020; 12:nu12020420. [PMID: 32041106 PMCID: PMC7071160 DOI: 10.3390/nu12020420] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Revised: 01/26/2020] [Accepted: 02/05/2020] [Indexed: 02/06/2023] Open
Abstract
There is inconsistent evidence that healthy dietary interventions can effectively mitigate the risk of adverse outcomes associated with elevated insulin resistance in pregnancy, suggesting that other moderating factors may be at play. Maternal psychological state is an important factor to consider in this regard, because stress/mood state can directly influence glycemia and a bidirectional relationship may exist between nutrition and psychological state. The objective of this study was to examine the interaction between maternal negative affect and diet quality on third trimester insulin resistance. We conducted a prospective longitudinal study of N = 203 women with assessments in early and mid-pregnancy, which included an ecological momentary assessment of maternal psychological state, from which a negative affect score (NAS) was derived, and 24-h dietary recalls, from which the Mediterranean Diet Score (MDS) was computed. The homeostasis model assessment of insulin resistance (HOMA-IR) was computed from third trimester fasting plasma glucose and insulin values. Early pregnancy MDS was inversely associated with the HOMA-IR, but this did not maintain significance after adjusting for covariates. There was a significant effect of the mid-pregnancy MDS*NAS interaction term with the HOMA-IR in the adjusted model, such that a higher negative affect was found to override the beneficial effects of a Mediterranean diet on insulin resistance. These results highlight the need to consider nutrition and affective state concurrently in the context of gestational insulin resistance.
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Affiliation(s)
- Karen L. Lindsay
- Departments of Pediatrics, University of California, Irvine, CA 92697, USA
- UC Irvine Development, Health and Disease Research Program, University of California, Irvine, CA 92697, USA; (C.B.); (P.D.W.); (S.E.)
- Correspondence: ; Tel.: +1-7-144-568-401
| | - Claudia Buss
- UC Irvine Development, Health and Disease Research Program, University of California, Irvine, CA 92697, USA; (C.B.); (P.D.W.); (S.E.)
- Charité–Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Institute of Medical Psychology, 10117 Berlin, Germany
| | - Pathik D. Wadhwa
- UC Irvine Development, Health and Disease Research Program, University of California, Irvine, CA 92697, USA; (C.B.); (P.D.W.); (S.E.)
- Departments of Psychiatry & Human Behavior, and Obstetrics & Gynecology, University of California, Irvine, CA 92697, USA
| | - Sonja Entringer
- UC Irvine Development, Health and Disease Research Program, University of California, Irvine, CA 92697, USA; (C.B.); (P.D.W.); (S.E.)
- Charité–Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Institute of Medical Psychology, 10117 Berlin, Germany
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Zatterale F, Longo M, Naderi J, Raciti GA, Desiderio A, Miele C, Beguinot F. Chronic Adipose Tissue Inflammation Linking Obesity to Insulin Resistance and Type 2 Diabetes. Front Physiol 2020; 10:1607. [PMID: 32063863 PMCID: PMC7000657 DOI: 10.3389/fphys.2019.01607] [Citation(s) in RCA: 457] [Impact Index Per Article: 114.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Accepted: 12/23/2019] [Indexed: 12/13/2022] Open
Abstract
Obesity is one of the major health burdens of the 21st century as it contributes to the growing prevalence of its related comorbidities, including insulin resistance and type 2 diabetes. Growing evidence suggests a critical role for overnutrition in the development of low-grade inflammation. Specifically, chronic inflammation in adipose tissue is considered a crucial risk factor for the development of insulin resistance and type 2 diabetes in obese individuals. The triggers for adipose tissue inflammation are still poorly defined. However, obesity-induced adipose tissue expansion provides a plethora of intrinsic signals (e.g., adipocyte death, hypoxia, and mechanical stress) capable of initiating the inflammatory response. Immune dysregulation in adipose tissue of obese subjects results in a chronic low-grade inflammation characterized by increased infiltration and activation of innate and adaptive immune cells. Macrophages are the most abundant innate immune cells infiltrating and accumulating into adipose tissue of obese individuals; they constitute up to 40% of all adipose tissue cells in obesity. In obesity, adipose tissue macrophages are polarized into pro-inflammatory M1 macrophages and secrete many pro-inflammatory cytokines capable of impairing insulin signaling, therefore promoting the progression of insulin resistance. Besides macrophages, many other immune cells (e.g., dendritic cells, mast cells, neutrophils, B cells, and T cells) reside in adipose tissue during obesity, playing a key role in the development of adipose tissue inflammation and insulin resistance. The association of obesity, adipose tissue inflammation, and metabolic diseases makes inflammatory pathways an appealing target for the treatment of obesity-related metabolic complications. In this review, we summarize the molecular mechanisms responsible for the obesity-induced adipose tissue inflammation and progression toward obesity-associated comorbidities and highlight the current therapeutic strategies.
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Affiliation(s)
- Federica Zatterale
- Department of Translational Medicine, University of Naples Federico II, Naples, Italy.,URT Genomic of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, Naples, Italy
| | - Michele Longo
- Department of Translational Medicine, University of Naples Federico II, Naples, Italy.,URT Genomic of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, Naples, Italy
| | - Jamal Naderi
- URT Genomic of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, Naples, Italy.,Department of Environmental, Biological, and Pharmaceutical Sciences and Technologies, University of Campania Luigi Vanvitelli, Caserta, Italy
| | - Gregory Alexander Raciti
- Department of Translational Medicine, University of Naples Federico II, Naples, Italy.,URT Genomic of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, Naples, Italy
| | - Antonella Desiderio
- Department of Translational Medicine, University of Naples Federico II, Naples, Italy.,URT Genomic of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, Naples, Italy
| | - Claudia Miele
- Department of Translational Medicine, University of Naples Federico II, Naples, Italy.,URT Genomic of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, Naples, Italy
| | - Francesco Beguinot
- Department of Translational Medicine, University of Naples Federico II, Naples, Italy.,URT Genomic of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, Naples, Italy
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Kierdorf K, Hersperger F, Sharrock J, Vincent CM, Ustaoglu P, Dou J, Gyoergy A, Groß O, Siekhaus DE, Dionne MS. Muscle function and homeostasis require cytokine inhibition of AKT activity in Drosophila. eLife 2020; 9:e51595. [PMID: 31944178 PMCID: PMC6996930 DOI: 10.7554/elife.51595] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Accepted: 01/10/2020] [Indexed: 12/20/2022] Open
Abstract
Unpaired ligands are secreted signals that act via a GP130-like receptor, domeless, to activate JAK/STAT signalling in Drosophila. Like many mammalian cytokines, unpaireds can be activated by infection and other stresses and can promote insulin resistance in target tissues. However, the importance of this effect in non-inflammatory physiology is unknown. Here, we identify a requirement for unpaired-JAK signalling as a metabolic regulator in healthy adult Drosophila muscle. Adult muscles show basal JAK-STAT signalling activity in the absence of any immune challenge. Plasmatocytes (Drosophila macrophages) are an important source of this tonic signal. Loss of the dome receptor on adult muscles significantly reduces lifespan and causes local and systemic metabolic pathology. These pathologies result from hyperactivation of AKT and consequent deregulation of metabolism. Thus, we identify a cytokine signal that must be received in muscle to control AKT activity and metabolic homeostasis.
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Affiliation(s)
- Katrin Kierdorf
- MRC Centre for Molecular Bacteriology and InfectionImperial College LondonLondonUnited Kingdom
- Department of Life SciencesImperial College LondonLondonUnited Kingdom
| | - Fabian Hersperger
- Institute of Neuropathology, Faculty of MedicineUniversity of FreiburgFreiburgGermany
- Faculty of BiologyUniversity of FreiburgFreiburgGermany
| | - Jessica Sharrock
- MRC Centre for Molecular Bacteriology and InfectionImperial College LondonLondonUnited Kingdom
- Department of Life SciencesImperial College LondonLondonUnited Kingdom
| | - Crystal M Vincent
- MRC Centre for Molecular Bacteriology and InfectionImperial College LondonLondonUnited Kingdom
- Department of Life SciencesImperial College LondonLondonUnited Kingdom
| | - Pinar Ustaoglu
- MRC Centre for Molecular Bacteriology and InfectionImperial College LondonLondonUnited Kingdom
- Department of Life SciencesImperial College LondonLondonUnited Kingdom
| | - Jiawen Dou
- MRC Centre for Molecular Bacteriology and InfectionImperial College LondonLondonUnited Kingdom
| | - Attila Gyoergy
- Institute of Science and TechnologyKlosterneuburgAustria
| | - Olaf Groß
- Institute of Neuropathology, Faculty of MedicineUniversity of FreiburgFreiburgGermany
- Centre for Integrative Biological Signalling Studies (CIBSS)University of FreiburgFreiburgGermany
- Center for Basics in NeuroModulation (NeuroModulBasics), Faculty of MedicineUniversity of FreiburgFreiburgGermany
| | | | - Marc S Dionne
- MRC Centre for Molecular Bacteriology and InfectionImperial College LondonLondonUnited Kingdom
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Wen X, Wu W, Fang W, Tang S, Xin H, Xie J, Zhang H. Effects of long-term heat exposure on cholesterol metabolism and immune responses in growing pigs. Livest Sci 2019. [DOI: 10.1016/j.livsci.2019.103857] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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27
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Mohamed MA, Ahmed MA, El Sayed RA. Molecular effects of Moringa leaf extract on insulin resistance and reproductive function in hyperinsulinemic male rats. J Diabetes Metab Disord 2019; 18:487-494. [PMID: 31890674 PMCID: PMC6915189 DOI: 10.1007/s40200-019-00454-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2019] [Accepted: 10/10/2019] [Indexed: 12/15/2022]
Abstract
BACKGROUND Many studies have reported that insulin resistance impairs the antioxidant defense system and causes male infertility. Moringa oleifera is a medicinal plant that has been employed for the medicament of many disorders. It controls the levels of glucose and manages male sexual disorders. However, its extracts can reverse insulin resistance-linked metabolic alterations remains unknown. Therefore, the current study investigated the potential of the aqueous leaves extract from Moringa oleifera to reverse insulin resistance and testicular disorders in rats. METHODS Rats were fed either a chow (as a control group) or a high fructose diet (HFD, to persuade a state of insulin resistance), in addition to a group of rats fed HFD and treated with Moringa (300 mg/kg) for 4 weeks. RESULTS Moringa reversed hepatic insulin insensitivity and this was linked to up-regulation of genes involved in insulin receptors and glucose uptake in the liver. These results were associated with amended the insulin level in serum and standardization of insulin sensitivity. In addition, it improved the serum testosterone level and the gene expression of the testicular steridogenic acute regulatory protein (StAR) and 3β-hydroxysteroid dehydrogenase (3β-HSD). CONCLUSION Taken together, our findings demonstrate that Moringa reversed HFD diet-induced insulin resistance and improved the testicular function.
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Affiliation(s)
- Mona A. Mohamed
- Biochemistry Division, Chemistry Department, Faculty of Science, Al-Azhar University (Girls Branch), Cairo, Egypt
| | - Mervat A. Ahmed
- Zoology Department, Faculty of Science, Al-Azhar University (Girls Branch), Cairo, Egypt
- Biology Department, Faculty of Science, Bisha University, Bisha, Saudi Arabia
| | - Rasha A. El Sayed
- Zoology Department, Faculty of Science, Al-Azhar University (Girls Branch), Cairo, Egypt
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28
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Lee HJ, Moon J, Chung I, Chung JH, Park C, Lee JO, Han JA, Kang MJ, Yoo EH, Kwak SY, Jo G, Park W, Park J, Kim KM, Lim S, Ngoei KRW, Ling NXY, Oakhill JS, Galic S, Murray-Segal L, Kemp BE, Mantzoros CS, Krauss RM, Shin MJ, Kim HS. ATP synthase inhibitory factor 1 (IF1), a novel myokine, regulates glucose metabolism by AMPK and Akt dual pathways. FASEB J 2019; 33:14825-14840. [PMID: 31670977 DOI: 10.1096/fj.201901440rr] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Accepted: 09/17/2019] [Indexed: 12/11/2022]
Abstract
ATPase inhibitory factor 1 (IF1) is an ATP synthase-interacting protein that suppresses the hydrolysis activity of ATP synthase. In this study, we observed that the expression of IF1 was up-regulated in response to electrical pulse stimulation of skeletal muscle cells and in exercized mice and healthy men. IF1 stimulates glucose uptake via AMPK in skeletal muscle cells and primary cultured myoblasts. Reactive oxygen species and Rac family small GTPase 1 (Rac1) function in the upstream and downstream of AMPK, respectively, in IF1-mediated glucose uptake. In diabetic animal models, the administration of recombinant IF1 improved glucose tolerance and down-regulated blood glucose level. In addition, IF1 inhibits ATP hydrolysis by β-F1-ATPase in plasma membrane, thereby increasing extracellular ATP and activating the protein kinase B (Akt) pathway, ultimately leading to glucose uptake. Thus, we suggest that IF1 is a novel myokine and propose a mechanism by which AMPK and Akt contribute independently to IF1-mediated improvement of glucose tolerance impairment. These results demonstrate the importance of IF1 as a potential antidiabetic agent.-Lee, H. J., Moon, J., Chung, I., Chung, J. H., Park, C., Lee, J. O., Han, J. A., Kang, M. J., Yoo, E. H., Kwak, S.-Y., Jo, G., Park, W., Park, J., Kim, K. M., Lim, S., Ngoei, K. R. W., Ling, N. X. Y., Oakhill, J. S., Galic, S., Murray-Segal, L., Kemp, B. E., Mantzoros, C. S., Krauss, R. M., Shin, M.-J., Kim, H. S. ATP synthase inhibitory factor 1 (IF1), a novel myokine, regulates glucose metabolism by AMPK and Akt dual pathways.
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Affiliation(s)
- Hye Jeong Lee
- Department of Anatomy, Korea University College of Medicine, Seoul, South Korea
| | - Jiyoung Moon
- Department of Public Health Sciences, Korea University, Seoul, South Korea
- Laboratory of Gene Regulation and Metabolism, Pennington Biomedical Research Center, Baton Rouge, Louisiana, USA
| | - InHyeok Chung
- Department of Public Health Sciences, Korea University, Seoul, South Korea
| | - Ji Hyung Chung
- Department of Biotechnology, CHA University, Pocheon, South Korea
| | - Chan Park
- Department of Biotechnology, CHA University, Pocheon, South Korea
| | - Jung Ok Lee
- Department of Anatomy, Korea University College of Medicine, Seoul, South Korea
| | - Jeong Ah Han
- Department of Anatomy, Korea University College of Medicine, Seoul, South Korea
| | - Min Ju Kang
- Department of Anatomy, Korea University College of Medicine, Seoul, South Korea
| | - Eun Hye Yoo
- Department of Public Health Sciences, Korea University, Seoul, South Korea
| | - So-Young Kwak
- Department of Public Health Sciences, Korea University, Seoul, South Korea
| | - Garam Jo
- Department of Public Health Sciences, Korea University, Seoul, South Korea
| | - Wonil Park
- Department of Physical Education, Korea University, Seoul, South Korea
| | - Jonghoon Park
- Department of Physical Education, Korea University, Seoul, South Korea
| | - Kyoung Min Kim
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seongnam, South Korea
| | - Soo Lim
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seongnam, South Korea
| | - Kevin R W Ngoei
- Protein Chemistry and Metabolism, University of Melbourne, Fitzroy, Victoria, Australia
| | - Naomi X Y Ling
- Metabolic Signaling Laboratory, St Vincenf's Institute of Medical Research, University of Melbourne, Fitzroy, Victoria, Australia
| | - Jonathan S Oakhill
- Metabolic Signaling Laboratory, St Vincenf's Institute of Medical Research, University of Melbourne, Fitzroy, Victoria, Australia
- Mary MacKillop Institute for Health Research, Australian Catholic University, Melbourne, Victoria, Australia
| | - Sandra Galic
- Protein Chemistry and Metabolism, University of Melbourne, Fitzroy, Victoria, Australia
| | - Lisa Murray-Segal
- Protein Chemistry and Metabolism, University of Melbourne, Fitzroy, Victoria, Australia
| | - Bruce E Kemp
- Protein Chemistry and Metabolism, University of Melbourne, Fitzroy, Victoria, Australia
- Mary MacKillop Institute for Health Research, Australian Catholic University, Melbourne, Victoria, Australia
| | - Christos S Mantzoros
- Division of Endocrinology, Beth-Israel Deaconess Medical Center-Harvard Medical School, Boston, Massachusetts, USA
| | - Ronald M Krauss
- Children's Hospital Oakland Research Institute, Oakland, California, USA
| | - Min-Jeong Shin
- Department of Public Health Sciences, Korea University, Seoul, South Korea
| | - Hyeon Soo Kim
- Department of Anatomy, Korea University College of Medicine, Seoul, South Korea
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29
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Alrdahe S, Al Sadoun H, Torbica T, McKenzie EA, Bowling FL, Boulton AJM, Mace KA. Dysregulation of macrophage development and phenotype in diabetic human macrophages can be rescued by Hoxa3 protein transduction. PLoS One 2019; 14:e0223980. [PMID: 31626638 PMCID: PMC6799902 DOI: 10.1371/journal.pone.0223980] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Accepted: 10/02/2019] [Indexed: 01/10/2023] Open
Abstract
Controlled inflammatory responses of myeloid cells recruited to wounds are essential for effective repair. In diabetes, the inflammatory response is prolonged and augmented over time, with increased myeloid cells present in the wound that fail to switch from a pro-inflammatory phenotype to a pro-healing phenotype. These defects lead to delayed angiogenesis and tissue repair and regeneration, and contribute to chronic wound formation. In mouse models of diabetes, this aberrant phenotype is partially mediated by stable intrinsic changes to the developing myeloid cells in the bone marrow, affecting their maturation and polarization potential. Previous studies have shown that freshly isolated peripheral blood mononuclear cells from diabetic patients are more inflammatory than non-diabetic counterparts. However, the phenotype of macrophages from human diabetic patients has not been well characterized. Here we show that diabetic-derived human macrophages cultured for 6 days in vitro maintain a pro-inflammatory priming and hyperpolarize to a pro-inflammatory phenotype when stimulated with LPS and INF-ɣ or TNF. In addition, diabetic-derived macrophages show maturation defects associated with reduced expression of the RUNX1 transcription factor that promotes myeloid cell development. Targeting intrinsic defects in myeloid cells by protein transduction of the Hoxa3 transcription factor can rescue some inflammation and maturation defects in human macrophages from diabetic patients via upregulation of Runx1. In addition, Hoxa3 can modulate the levels of p65/NF-κB and histone acetyltransferase and deacetylase activity, as well as inhibit acetylation of the TNF promoter. Altogether, these results show a link between myeloid cell maturation and inflammatory responses, and that diabetes induces intrinsic changes to human myeloid cells that are maintained over time, as well as potentially therapeutic Hoxa3-mediated mechanisms of controlling the inflammatory response in diabetes.
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MESH Headings
- Adult
- Antigens, CD/genetics
- Antigens, CD/metabolism
- Antigens, Differentiation, Myelomonocytic/genetics
- Antigens, Differentiation, Myelomonocytic/metabolism
- Case-Control Studies
- Cell Survival/drug effects
- Cells, Cultured
- Core Binding Factor Alpha 2 Subunit/genetics
- Core Binding Factor Alpha 2 Subunit/metabolism
- Culture Media, Conditioned/chemistry
- Diabetes Mellitus, Type 2/metabolism
- Diabetes Mellitus, Type 2/pathology
- Female
- Homeodomain Proteins/genetics
- Homeodomain Proteins/metabolism
- Humans
- Interleukin-6/analysis
- Leukocytes, Mononuclear/cytology
- Macrophages/cytology
- Macrophages/drug effects
- Macrophages/metabolism
- Male
- Middle Aged
- Phenotype
- Recombinant Proteins/biosynthesis
- Recombinant Proteins/isolation & purification
- Recombinant Proteins/pharmacology
- Tumor Necrosis Factors/analysis
- Tumor Necrosis Factors/metabolism
- Up-Regulation/drug effects
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Affiliation(s)
- Salma Alrdahe
- Division of Cell Matrix Biology & Regenerative Medicine, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester, United Kingdom
| | - Hadeel Al Sadoun
- Stem Cell Unit, King Fahad Medical Research Center, Department of Laboratory Medical Technology, Faculty of Applied Medical Sciences, King Abdulaziz University, Saudi Arabia
| | - Tanja Torbica
- Division of Cell Matrix Biology & Regenerative Medicine, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester, United Kingdom
| | - Edward A. McKenzie
- Manchester Institute of Biotechnology, University of Manchester, Manchester, United Kingdom
| | - Frank L. Bowling
- Division of Diabetes, Endocrinology & Gastroenterology, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester, United Kingdom
| | - Andrew J. M. Boulton
- Division of Diabetes, Endocrinology & Gastroenterology, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester, United Kingdom
| | - Kimberly A. Mace
- Division of Cell Matrix Biology & Regenerative Medicine, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester, United Kingdom
- * E-mail:
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30
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Pattern Recognition Receptor-Mediated Chronic Inflammation in the Development and Progression of Obesity-Related Metabolic Diseases. Mediators Inflamm 2019; 2019:5271295. [PMID: 31582899 PMCID: PMC6754942 DOI: 10.1155/2019/5271295] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2019] [Accepted: 08/13/2019] [Indexed: 12/12/2022] Open
Abstract
Obesity-induced chronic inflammation is known to promote the development of many metabolic diseases, especially insulin resistance, type 2 diabetes mellitus, nonalcoholic fatty liver disease, and atherosclerosis. Pattern recognition receptor-mediated inflammation is an important determinant for the initiation and progression of these metabolic diseases. Here, we review the major features of the current understanding with respect to obesity-related chronic inflammation in metabolic tissues, focus on Toll-like receptors and nucleotide-binding oligomerization domain-like receptors with an emphasis on how these receptors determine metabolic disease progression, and provide a summary on the development and progress of PRR antagonists for therapeutic intervention.
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Abstract
Studies have linked obesity, metabolic syndrome, type 2 diabetes, cardiovascular disease (CVD), nonalcoholic fatty liver disease (NAFLD) and dementia. Their relationship to the incidence and progression of these disease states suggests an interconnected pathogenesis involving chronic low-grade inflammation and oxidative stress. Metabolic syndrome represents comorbidities of central obesity, insulin resistance, dyslipidemia, hypertension and hyperglycemia associated with increased risk of type 2 diabetes, NAFLD, atherosclerotic CVD and neurodegenerative disease. As the socioeconomic burden for these diseases has grown signficantly with an increasing elderly population, new and alternative pharmacologic solutions for these cardiometabolic diseases are required. Adipose tissue, skeletal muscle and liver are central endocrine organs that regulate inflammation, energy and metabolic homeostasis, and the neuroendocrine axis through synthesis and secretion of adipokines, myokines, and hepatokines, respectively. These organokines affect each other and communicate through various endocrine, paracrine and autocrine pathways. The ultimate goal of this review is to provide a comprehensive understanding of organ crosstalk. This will include the roles of novel organokines in normal physiologic regulation and their pathophysiological effect in obesity, metabolic syndrome, type 2 diabetes, CVD, NAFLD and neurodegenerative disorders.
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Affiliation(s)
- Hye Soo Chung
- Division of Endocrinology and Metabolism, Department of Internal Medicine, College of Medicine, Hallym University, Seoul, South Korea
| | - Kyung Mook Choi
- Division of Endocrinology and Metabolism, Department of Internal Medicine, College of Medicine, Korea University, Seoul, South Korea.
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Ghrelin Signaling in Immunometabolism and Inflamm-Aging. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1090:165-182. [PMID: 30390290 DOI: 10.1007/978-981-13-1286-1_9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Intracellular changes in immune cells lead to metabolic dysfunction, which is termed immunometabolism. Chronic inflammation is a hallmark of aging; this phenomenon is described as inflamm-aging. Immunometabolism and inflamm-aging are closely linked to obesity, insulin resistance, type 2 diabetes (T2D), cardiovascular diseases, and cancers, which consequently reduce life span and health span of the elderly. Ghrelin is an orexigenic hormone that regulates appetite and food intake. Ghrelin's functions are mediated through its receptor, growth hormone secretagogue receptor (GHS-R). Ghrelin and GHS-R have important roles in age-associated obesity, insulin resistance, and T2D. In this chapter, we have discussed the roles of ghrelin signaling in diet-induced obesity and normal aging as it relates to energy metabolism and inflammation in key metabolic tissues and organs. The new findings reveal that ghrelin signaling is an important regulatory mechanism for immunometabolism and inflamm-aging. Ghrelin signaling offers an exciting novel therapeutic strategy for treatment of obesity and insulin resistance of the elderly.
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Wu E, Zhang T, Tan C, Peng C, Chisti Y, Wang Q, Gong J. Theabrownin from Pu-erh tea together with swinging exercise synergistically ameliorates obesity and insulin resistance in rats. Eur J Nutr 2019; 59:1937-1950. [PMID: 31273522 DOI: 10.1007/s00394-019-02044-y] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Accepted: 06/30/2019] [Indexed: 01/03/2023]
Abstract
PURPOSE Theabrownin (TB)-containing Pu-erh tea has been shown to be hypolipidemic in rats fed a high-fat diet. Physical exercise such as swinging is also known to reduce obesity. We hypothesized that TB in combination with swinging can synergistically ameliorate obesity and insulin resistance in rats with metabolic syndrome. METHODS TB, rosiglitazone, or lovastatin (controls) was administered by gavage to rats fed a diet high in fat, sugar, and salt. A subgroup of the rats was subjected to a 30-min daily swinging exercise regimen, whereas the other rats did not exercise. RESULTS Theabrownin in combination with swinging was found to significantly improve serum lipid status and prevent development of obesity and insulin resistance in rats. Liver transcriptomics data suggested that theabrownin activated circadian rhythm, protein kinase A, the adenosine monophosphate-activated protein kinase, and insulin signaling pathways by enhancing cyclic adenosine monophosphate levels and, hence, accelerating nutrient metabolism and the consumption of sugar and fat. The serum dopamine levels in rats increased significantly after exercise. In parallel work, intraperitoneal dopamine injections were shown to significantly reduce weight gain and prevent the elevation in triglyceride levels that would otherwise be induced by the high fat-sugar-salt diet. Theabrownin prevented obesity and insulin resistance mainly by affecting the circadian rhythm, while swinging exercise stimulated the overproduction of dopamine to accelerate metabolism of glucose and lipid. CONCLUSIONS Theabrownin and exercise synergistically ameliorated metabolic syndrome in rats and effectively prevented obesity.
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Affiliation(s)
- Enkai Wu
- College of Food Science and Technology, Yunnan Agricultural University, Heilong Tan, Kunming, 650201, Yunnan, China
| | - Tingting Zhang
- College of Food Science and Technology, Yunnan Agricultural University, Heilong Tan, Kunming, 650201, Yunnan, China
| | - Chao Tan
- College of Food Science and Technology, Yunnan Agricultural University, Heilong Tan, Kunming, 650201, Yunnan, China
| | - Chunxiu Peng
- College of Horticulture and Landscape, Yunnan Agricultural University, Heilong Tan, Kunming, 650201, Yunnan, China
| | - Yusuf Chisti
- School of Engineering, Massey University, Private Bag 11 222, Palmerston North, New Zealand
| | - Qiuping Wang
- College of Food Science and Technology, Yunnan Agricultural University, Heilong Tan, Kunming, 650201, Yunnan, China.
| | - Jiashun Gong
- College of Food Science and Technology, Yunnan Agricultural University, Heilong Tan, Kunming, 650201, Yunnan, China.
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Mohamed MA, Ahmed MA, Abd Elbast SA, Ali NA. Rice bran oil ameliorates hepatic insulin resistance by improving insulin signaling in fructose fed-rats. J Diabetes Metab Disord 2019; 18:89-97. [PMID: 31275879 DOI: 10.1007/s40200-019-00394-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Accepted: 02/28/2019] [Indexed: 12/28/2022]
Abstract
Background Insulin resistance is an inadequate metabolic response of the peripheral tissue to circulating insulin. It plays an important pathophysiological role in type 2 diabetes mellitus. The purpose of the study was to investigate the molecular effects of rice bran oil (RBO) on the gene expression of insulin receptor (IR), insulin receptor substrate-1 (IRS-1), glucose transporters-4 and 5 (GLUT-4 and 5) in insulin-resistant rats induced by high fructose diet (HFD). Methods Rats were divided into six groups (10 rats each) as follows: Groups 1 and 2: rats received a standard diet with corn oil or RBO (as the sole source of fat), respectively. Group 3: animals fed on HFD, which was furtherly divided into 2 sub-groups: rats fed HFD either for one (HFD1) or for 2 months (HFD2). Group 4, rats fed HFD containing RBO for 1 month (HFD1 + RBO), while rats in group 5 fed HFD for 30 days then RBO was added to the diet for another 30 days (HFD2 + RBO). Serum levels of glucose and insulin, as well as hepatic gene expression of insulin receptors and glucose transporters were determined. Livers were isolated for histopathological study. Results HFD induced insulin resistance with a reduction in the hepatic level of insulin receptor and glucose transporters at both protein and molecular levels. Addition of RBO improved the insulin sensitivity and up-regulated the expression of the tested genes. Conclusion HFD impaired the insulin sensitivity of the hepatocytes by down-regulating the insulin receptor genes. Addition of RBO alleviated all the hazardous effects.
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Affiliation(s)
- Mona A Mohamed
- 1Biochemistry Division, Chemistry Department, Faculty of Science, Al-Azhar University, P.O.: 11754, Cairo, Egypt
| | - Mervat A Ahmed
- 2Zoology Department, Faculty of Science, Al-Azhar University, Cairo, Egypt
| | | | - Nehad A Ali
- 2Zoology Department, Faculty of Science, Al-Azhar University, Cairo, Egypt
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35
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Garneau L, Aguer C. Role of myokines in the development of skeletal muscle insulin resistance and related metabolic defects in type 2 diabetes. DIABETES & METABOLISM 2019; 45:505-516. [PMID: 30844447 DOI: 10.1016/j.diabet.2019.02.006] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Revised: 02/04/2019] [Accepted: 02/25/2019] [Indexed: 12/20/2022]
Abstract
Due to its mass, skeletal muscle is the major site of glucose uptake and an important tissue in the development of type 2 diabetes (T2D). Muscles of patients with T2D are affected with insulin resistance and mitochondrial dysfunction, which result in impaired glucose and fatty acid metabolism. A well-established method of managing the muscle metabolic defects occurring in T2D is physical exercise. During exercise, muscles contract and secrete factors called myokines which can act in an autocrine/paracrine fashion to improve muscle energy metabolism. In patients with T2D, plasma levels as well as muscle levels (mRNA and protein) of some myokines are upregulated, while others are downregulated. The signalling pathways of certain myokines are also altered in skeletal muscle of patients with T2D. Taken together, these findings suggest that myokine secretion is an important factor contributing to the development of muscle metabolic defects during T2D. It is also of interest considering that lack of physical activity is closely linked to the occurrence of this disease. The causal relationships between sedentary behavior, factors secreted by skeletal muscle at rest and during contraction and the development of T2D remain to be elucidated. Many myokines shown to influence muscle energy metabolism still have not been characterized in the context of T2D in skeletal muscle specifically. The purpose of this review is to highlight what is known and what remains to be determined regarding myokine secretion in patients with T2D to uncover potential therapeutic targets for the management of this disease.
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Affiliation(s)
- L Garneau
- University of Ottawa, Faculty of Medicine, Department of Biochemistry, Microbiology and Immunology, Ottawa, ON, K1H 8M5, Canada; Institut du Savoir Montfort - recherche, Ottawa, ON, K1K 0T2, Canada
| | - C Aguer
- University of Ottawa, Faculty of Medicine, Department of Biochemistry, Microbiology and Immunology, Ottawa, ON, K1H 8M5, Canada; Institut du Savoir Montfort - recherche, Ottawa, ON, K1K 0T2, Canada.
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36
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Paul HA, Collins KH, Nicolucci AC, Urbanski SJ, Hart DA, Vogel HJ, Reimer RA. Maternal prebiotic supplementation reduces fatty liver development in offspring through altered microbial and metabolomic profiles in rats. FASEB J 2019; 33:5153-5167. [PMID: 30629464 DOI: 10.1096/fj.201801551r] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
A maternal high-fat/sucrose diet, in the presence of maternal obesity, can program increased susceptibility to obesity and metabolic disease in offspring. In particular, nonalcoholic fatty liver disease risk is associated with poor maternal nutrition and obesity status, which may manifest via alterations in gut microbiota. Here, we report that in a preclinical model of diet-induced maternal obesity, maternal supplementation of a high-fat/sucrose diet with the prebiotic oligofructose improves glucose tolerance, insulin sensitivity, and hepatic steatosis in offspring following a long-term high-fat/sucrose dietary challenge compared with offspring of untreated dams. These improvements are associated with alterations in gut microbial composition and serum inflammatory profiles in early life and improvements in inflammatory and fatty-acid gene expression profiles in tissues. Serum metabolomics analysis highlights potential metabolic links between the gut microbiota and the degree of steatosis, including alterations in 1-carbon metabolism. Overall, our data suggest that maternal prebiotic intake protects offspring against hepatic steatosis and insulin resistance following 21 wk of high fat/sucrose diet, which is in part due to alterations in gut microbiota.-Paul, H. A., Collins, K. H., Nicolucci, A. C., Urbanski, S. J., Hart, D. A., Vogel, H. J., Reimer, R. A. Maternal prebiotic supplementation reduces fatty liver development in offspring through altered microbial and metabolomic profiles in rats.
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Affiliation(s)
- Heather A Paul
- Department of Biochemistry and Molecular Biology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Kelsey H Collins
- Faculty of Kinesiology, University of Calgary, Calgary, Alberta, Canada
| | | | - Stefan J Urbanski
- Department of Pathology and Laboratory Medicine, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - David A Hart
- Faculty of Kinesiology, University of Calgary, Calgary, Alberta, Canada.,McCaig Institute for Bone and Joint Health, University of Calgary, Calgary, Alberta, Canada; and
| | - Hans J Vogel
- Department of Biochemistry and Molecular Biology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.,Department of Biological Sciences, Bio-Nuclear Magnetic Resonance (NMR) Center, University of Calgary, Calgary, Alberta, Canada
| | - Raylene A Reimer
- Department of Biochemistry and Molecular Biology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.,Faculty of Kinesiology, University of Calgary, Calgary, Alberta, Canada
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Wu Y, Han M, Wang Y, Gao Y, Cui X, Xu P, Ji C, Zhong T, You L, Zeng Y. A Comparative Peptidomic Characterization of Cultured Skeletal Muscle Tissues Derived From db/db Mice. Front Endocrinol (Lausanne) 2019; 10:741. [PMID: 31736878 PMCID: PMC6828820 DOI: 10.3389/fendo.2019.00741] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Accepted: 10/14/2019] [Indexed: 12/19/2022] Open
Abstract
As an important secretory organ, skeletal muscle has drawn attention as a potential target tissue for type 2 diabetic mellitus (T2DM). Recent peptidomics approaches have been applied to identify secreted peptides with potential bioactive. However, comprehensive analysis of the secreted peptides from skeletal muscle tissues of db/db mice and elucidation of their possible roles in insulin resistance remains poorly characterized. Here, we adopted a label-free discovery using liquid chromatography tandem mass spectrometry (LC-MS/MS) technology and identified 63 peptides (42 up-regulated peptides and 21 down-regulated peptides) differentially secreted from cultured skeletal muscle tissues of db/db mice. Analysis of relative molecular mass (Mr), isoelectric point (pI) and distribution of Mr vs pI of differentially secreted peptides presented the general feature. Furthermore, Gene ontology (GO) and pathway analyses for the parent proteins made a comprehensive functional assessment of these differential peptides, indicating the enrichment in glycolysis/gluconeogenesis and striated muscle contraction processes. Intercellular location analysis pointed out most precursor proteins of peptides were cytoplasmic or cytoskeletal. Additionally, cleavage site analysis revealed that Lysine (N-terminal)-Alanine (C-terminal) and Lysine (N-terminal)-Leucine (C-terminal) represents the preferred cleavage sites for identified peptides and proceeding peptides respectively. Mapped to the precursors' sequences, most identified peptides were observed cleaved from creatine kinase m-type (KCRM) and fructose-bisphosphate aldolase A (Aldo A). Based on UniProt and Pfam database for specific domain structure or motif, 44 peptides out of total were positioned in the functional motif or domain from their parent proteins. Using C2C12 myotubes as cell model in vitro, we found several candidate peptides displayed promotive or inhibitory effects on insulin and mitochondrial-related pathways by an autocrine manner. Taken together, this study will encourage us to investigate the biologic functions and the potential regulatory mechanism of these secreted peptides from skeletal muscle tissues, thus representing a promising strategy to treat insulin resistance as well as the associated metabolic disorders.
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Affiliation(s)
- Yanting Wu
- Nanjing Maternity and Child Health Care Institute, Women's Hospital of Nanjing Medical University (Nanjing Maternity and Child Health Care Hospital), Nanjing, China
- Affiliated Maternity and Child Health Care Hospital of Nantong University, NanTong, China
| | - Mei Han
- Nanjing Maternity and Child Health Care Institute, Women's Hospital of Nanjing Medical University (Nanjing Maternity and Child Health Care Hospital), Nanjing, China
- Department of Clinical Laboratory, Women's Hospital of Nanjing Medical University (Nanjing Maternity and Child Health Care Hospital), Nanjing, China
| | - Yan Wang
- Nanjing Maternity and Child Health Care Institute, Women's Hospital of Nanjing Medical University (Nanjing Maternity and Child Health Care Hospital), Nanjing, China
| | - Yao Gao
- Department of Endocrinology, Children's Hospital of Nanjing Medical University, Nanjing, China
| | - Xianwei Cui
- Nanjing Maternity and Child Health Care Institute, Women's Hospital of Nanjing Medical University (Nanjing Maternity and Child Health Care Hospital), Nanjing, China
| | - Pengfei Xu
- Nanjing Maternity and Child Health Care Institute, Women's Hospital of Nanjing Medical University (Nanjing Maternity and Child Health Care Hospital), Nanjing, China
| | - Chenbo Ji
- Nanjing Maternity and Child Health Care Institute, Women's Hospital of Nanjing Medical University (Nanjing Maternity and Child Health Care Hospital), Nanjing, China
| | - Tianying Zhong
- Department of Clinical Laboratory, Women's Hospital of Nanjing Medical University (Nanjing Maternity and Child Health Care Hospital), Nanjing, China
| | - Lianghui You
- Nanjing Maternity and Child Health Care Institute, Women's Hospital of Nanjing Medical University (Nanjing Maternity and Child Health Care Hospital), Nanjing, China
- *Correspondence: Lianghui You
| | - Yu Zeng
- Department of Clinical Laboratory, Women's Hospital of Nanjing Medical University (Nanjing Maternity and Child Health Care Hospital), Nanjing, China
- Yu Zeng
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Fijany A, Sayadi LR, Khoshab N, Banyard DA, Shaterian A, Alexander M, Lakey JRT, Paydar KZ, Evans GRD, Widgerow AD. Mesenchymal stem cell dysfunction in diabetes. Mol Biol Rep 2018; 46:1459-1475. [PMID: 30484107 DOI: 10.1007/s11033-018-4516-x] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Accepted: 11/22/2018] [Indexed: 02/08/2023]
Abstract
Diabetes mellitus (DM) is a chronic disease that results in a variety of systemic complications. Recently, stem cell-based therapies have been proposed as potential modalities to manage DM related complications. Mesenchymal stem cell (MSC) based therapies are often considered as an ideal stem cell-based treatment for DM management due to their immunosuppressive characteristics, anti-inflammatory properties and differentiation potential. While MSCs show tremendous promise, the underlying functional deficits of MSCs in DM patients is not well understood. Using the MEDLINE database to define these functional deficits, our search yielded 1826 articles of which 33 met our inclusion criteria. This allowed us to review the topic and illuminate four major molecular categories by which MSCs are compromised in both Type 1 DM and Type II DM models which include: (1) changes in angiogenesis/vasculogenesis, (2) altered pro-inflammatory cytokine secretion, (3) increased oxidative stress markers and (4) impaired cellular differentiation and decreased proliferation. Knowledge of the deficits in MSC function will allow us to more clearly assess the efficacy of potential biologic therapies for reversing these dysfunctions when treating the complications of diabetic disease.
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Affiliation(s)
- Arman Fijany
- UC Irvine Department of Plastic Surgery, Center for Tissue Engineering, Orange, CA, USA
| | - Lohrasb R Sayadi
- UC Irvine Department of Plastic Surgery, Center for Tissue Engineering, Orange, CA, USA
| | - Nima Khoshab
- UC Irvine Department of Plastic Surgery, Center for Tissue Engineering, Orange, CA, USA
| | - Derek A Banyard
- UC Irvine Department of Plastic Surgery, Center for Tissue Engineering, Orange, CA, USA
| | - Ashkaun Shaterian
- UC Irvine Department of Plastic Surgery, Center for Tissue Engineering, Orange, CA, USA
| | - Michael Alexander
- UC Irvine Department of Surgery & Biomedical Engineering, Orange, CA, USA
| | | | - Keyianoosh Z Paydar
- UC Irvine Department of Plastic Surgery, Center for Tissue Engineering, Orange, CA, USA
| | - Gregory R D Evans
- UC Irvine Department of Plastic Surgery, Center for Tissue Engineering, Orange, CA, USA.,UC Irvine Department of Surgery & Biomedical Engineering, Orange, CA, USA
| | - Alan D Widgerow
- UC Irvine Department of Plastic Surgery, Center for Tissue Engineering, Orange, CA, USA. .,UC Irvine Department of Surgery & Biomedical Engineering, Orange, CA, USA. .,University of California, Irvine Suite 108a Building 55, 101 S. City Dr., Orange, CA, 92868, USA.
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39
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Furuichi Y, Manabe Y, Takagi M, Aoki M, Fujii NL. Evidence for acute contraction-induced myokine secretion by C2C12 myotubes. PLoS One 2018; 13:e0206146. [PMID: 30356272 PMCID: PMC6200277 DOI: 10.1371/journal.pone.0206146] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Accepted: 10/08/2018] [Indexed: 12/11/2022] Open
Abstract
Skeletal muscle is considered a secretory organ that produces bioactive proteins known as myokines, which are released in response to various stimuli. However, no experimental evidence exists regarding the mechanism by which acute muscle contraction regulates myokine secretion. Here, we present evidence that acute contractions induced myokine secretion from C2C12 myotubes. Changes in the cell culture medium unexpectedly triggered the release of large amounts of proteins from the myotubes, and these proteins obscured the contraction-induced myokine secretion. Once protein release was abolished, the secretion of interleukin-6 (IL-6), the best-known regulatory myokine, increased in response to a 1-hour contraction evoked by electrical stimulation. Using this experimental condition, intracellular calcium flux, rather than the contraction itself, triggered contraction-induced IL-6 secretion. This is the first report to show an evidence for acute contraction-induced myokine secretion by skeletal muscle cells.
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Affiliation(s)
- Yasuro Furuichi
- Department of Health Promotion Sciences, Graduate School of Human Health Sciences, Tokyo Metropolitan University, Tokyo, Japan
| | - Yasuko Manabe
- Department of Health Promotion Sciences, Graduate School of Human Health Sciences, Tokyo Metropolitan University, Tokyo, Japan
- * E-mail: (YM); (NLF)
| | - Mayumi Takagi
- Department of Health Promotion Sciences, Graduate School of Human Health Sciences, Tokyo Metropolitan University, Tokyo, Japan
| | - Miho Aoki
- Department of Health Promotion Sciences, Graduate School of Human Health Sciences, Tokyo Metropolitan University, Tokyo, Japan
| | - Nobuharu L. Fujii
- Department of Health Promotion Sciences, Graduate School of Human Health Sciences, Tokyo Metropolitan University, Tokyo, Japan
- * E-mail: (YM); (NLF)
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40
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Manabe Y. [Do Myokines Have Potential as Exercise Mimetics?]. YAKUGAKU ZASSHI 2018; 138:1285-1290. [PMID: 30270273 DOI: 10.1248/yakushi.18-00091-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Exercise is generally considered to have health benefits for the body, although its beneficial mechanisms have not been fully elucidated. Recent progressive research suggests that myokines, bioactive substances secreted from skeletal muscle, play an important role in mediating the benefits of exercise. There are three types of myokines in terms of the muscular secretion mechanism: those in which the secretion is promoted by stimulation, such as irisin, interleukin (IL)-6, and IL-15; those whose secretion is constitutive, such as thioredoxin, glutaredoxin, and peroxiredoxin; and those whose secretion is suppressed by stimulation, such as by a macrophage migration inhibitory factor. Although dozens of myokines have been reported, their physiological roles are not well understood. Therefore, there currently exists no advanced drug discovery research specifically targeting myokines, with the exception of Myostatin. Myostatin was discovered as a negative regulator of muscle growth. Myostatin is secreted from muscle cells as a myokine; it signals via an activin type IIB receptor in an autocrine manner, and regulates gene expressions involved in myogenesis. Given the studies to date that have been conducted on the utilization of myostatin inhibitors for the treatment of muscle weakness, including cachexia and sarcopenia, other myokines may also be new potential drug targets.
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Affiliation(s)
- Yasuko Manabe
- Department of Health Promotion Sciences, Graduate School of Human Health Sciences, Tokyo Metropolitan University
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41
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Zhang S, Carriere J, Lin X, Xie N, Feng P. Interplay between Cellular Metabolism and Cytokine Responses during Viral Infection. Viruses 2018; 10:v10100521. [PMID: 30249998 PMCID: PMC6213852 DOI: 10.3390/v10100521] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Revised: 09/20/2018] [Accepted: 09/21/2018] [Indexed: 02/06/2023] Open
Abstract
Metabolism and immune responses are two fundamental biological processes that serve to protect hosts from viral infection. As obligate intracellular pathogens, viruses have evolved diverse strategies to activate metabolism, while inactivating immune responses to achieve maximal reproduction or persistence within their hosts. The two-way virus-host interaction with metabolism and immune responses choreograph cytokine production via reprogramming metabolism of infected cells/hosts. In return, cytokines can affect the metabolism of virus-infected and bystander cells to impede viral replication processes. This review aims to summarize our current understanding of the cross-talk between metabolic reprogramming and cytokine responses, and to highlight future potential research topics. Although the focus is placed on viral pathogens, relevant findings from other microbes are integrated to provide an overall picture, particularly when corresponding information on viral infection is lacking.
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Affiliation(s)
- Shu Zhang
- Section of Infection and Immunity, Herman Ostrow School of Dentistry, Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, CA 90089-0641, USA.
| | - Jessica Carriere
- Section of Infection and Immunity, Herman Ostrow School of Dentistry, Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, CA 90089-0641, USA.
| | - Xiaoxi Lin
- Section of Infection and Immunity, Herman Ostrow School of Dentistry, Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, CA 90089-0641, USA.
| | - Na Xie
- Section of Infection and Immunity, Herman Ostrow School of Dentistry, Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, CA 90089-0641, USA.
| | - Pinghui Feng
- Section of Infection and Immunity, Herman Ostrow School of Dentistry, Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, CA 90089-0641, USA.
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42
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Skeletal muscle secretion of IL-6 is muscle type specific: Ex vivo evidence. Biochem Biophys Res Commun 2018; 505:146-150. [PMID: 30241947 DOI: 10.1016/j.bbrc.2018.09.042] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Accepted: 09/07/2018] [Indexed: 01/18/2023]
Abstract
Emerging evidence indicates that skeletal muscle possesses endocrine function to secret myokines. Interleukin 6 (IL-6) is a well-characterized myokine that is involved in regulation of metabolism and muscle function. Metabolism type and contractile dynamics vary in different muscle types. It is not clear, however, if IL-6 secretion differs in different muscle types. In this study, we first established an ex vivo approach to test the inducible muscle secretion. Freshly isolated muscles were incubated in Krebs solution at 37 °C with oxygen supply. Secreted IL-6 in the incubation media was measure using Western blot and ELISA assay. We first confirmed that the IL-6 release was inducible by treating the incubated muscle with a cytokine stimulant. We demonstrated that physiological temperature (37 °C) and O2 supply were essential for the induction of IL-6 release from the incubated muscle, suggesting it is a controlled secretion rather than a spontaneous leak. Using this approach, we found that IL-6 release was only inducible from soleus muscle but not EDL muscle. We further showed that IL-6 protein level was higher in slow oxidative muscle fibers. Moreover, we showed that EDL, although lacks of IL-6 release, surely has inducible secretory function that had different secretory pattern from soleus.
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43
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Peña-Oyarzun D, Bravo-Sagua R, Diaz-Vega A, Aleman L, Chiong M, Garcia L, Bambs C, Troncoso R, Cifuentes M, Morselli E, Ferreccio C, Quest AFG, Criollo A, Lavandero S. Autophagy and oxidative stress in non-communicable diseases: A matter of the inflammatory state? Free Radic Biol Med 2018; 124:61-78. [PMID: 29859344 DOI: 10.1016/j.freeradbiomed.2018.05.084] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2018] [Revised: 05/22/2018] [Accepted: 05/28/2018] [Indexed: 12/11/2022]
Abstract
Non-communicable diseases (NCDs), also known as chronic diseases, are long-lasting conditions that affect millions of people around the world. Different factors contribute to their genesis and progression; however they share common features, which are critical for the development of novel therapeutic strategies. A persistently altered inflammatory response is typically observed in many NCDs together with redox imbalance. Additionally, dysregulated proteostasis, mainly derived as a consequence of compromised autophagy, is a common feature of several chronic diseases. In this review, we discuss the crosstalk among inflammation, autophagy and oxidative stress, and how they participate in the progression of chronic diseases such as cancer, cardiovascular diseases, obesity and type II diabetes mellitus.
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Affiliation(s)
- Daniel Peña-Oyarzun
- Advanced Center for Chronic Diseases (ACCDiS), Facultad de Ciencias Químicas y Farmacéuticas & Facultad de Medicina, Universidad de Chile, Santiago, Chile; Instituto de Investigación en Ciencias Odontológicas (ICOD), Facultad de Odontología, Universidad de Chile, Santiago, Chile
| | - Roberto Bravo-Sagua
- Advanced Center for Chronic Diseases (ACCDiS), Facultad de Ciencias Químicas y Farmacéuticas & Facultad de Medicina, Universidad de Chile, Santiago, Chile; Instituto de Nutrición y Tecnología de los Alimentos (INTA), Universidad de Chile, Santiago, Chile
| | - Alexis Diaz-Vega
- Advanced Center for Chronic Diseases (ACCDiS), Facultad de Ciencias Químicas y Farmacéuticas & Facultad de Medicina, Universidad de Chile, Santiago, Chile; Center for Studies of Exercise, Metabolism and Cancer Studies (CEMC), Facultad de Ciencias Químicas y Farmacéuticas & Facultad de Medicina, Universidad de Chile, Santiago, Chile
| | - Larissa Aleman
- Advanced Center for Chronic Diseases (ACCDiS), Facultad de Ciencias Químicas y Farmacéuticas & Facultad de Medicina, Universidad de Chile, Santiago, Chile
| | - Mario Chiong
- Advanced Center for Chronic Diseases (ACCDiS), Facultad de Ciencias Químicas y Farmacéuticas & Facultad de Medicina, Universidad de Chile, Santiago, Chile; Center for Studies of Exercise, Metabolism and Cancer Studies (CEMC), Facultad de Ciencias Químicas y Farmacéuticas & Facultad de Medicina, Universidad de Chile, Santiago, Chile
| | - Lorena Garcia
- Advanced Center for Chronic Diseases (ACCDiS), Facultad de Ciencias Químicas y Farmacéuticas & Facultad de Medicina, Universidad de Chile, Santiago, Chile; Center for Studies of Exercise, Metabolism and Cancer Studies (CEMC), Facultad de Ciencias Químicas y Farmacéuticas & Facultad de Medicina, Universidad de Chile, Santiago, Chile
| | - Claudia Bambs
- Advanced Center for Chronic Diseases (ACCDiS), Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile; Departamento de Salud Pública, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Rodrigo Troncoso
- Advanced Center for Chronic Diseases (ACCDiS), Facultad de Ciencias Químicas y Farmacéuticas & Facultad de Medicina, Universidad de Chile, Santiago, Chile; Instituto de Nutrición y Tecnología de los Alimentos (INTA), Universidad de Chile, Santiago, Chile
| | - Mariana Cifuentes
- Instituto de Nutrición y Tecnología de los Alimentos (INTA), Universidad de Chile, Santiago, Chile; Center for Studies of Exercise, Metabolism and Cancer Studies (CEMC), Facultad de Ciencias Químicas y Farmacéuticas & Facultad de Medicina, Universidad de Chile, Santiago, Chile
| | - Eugenia Morselli
- Departamento de Fisiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Catterina Ferreccio
- Advanced Center for Chronic Diseases (ACCDiS), Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile; Departamento de Salud Pública, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Andrew F G Quest
- Advanced Center for Chronic Diseases (ACCDiS), Facultad de Ciencias Químicas y Farmacéuticas & Facultad de Medicina, Universidad de Chile, Santiago, Chile; Center for Studies of Exercise, Metabolism and Cancer Studies (CEMC), Facultad de Ciencias Químicas y Farmacéuticas & Facultad de Medicina, Universidad de Chile, Santiago, Chile
| | - Alfredo Criollo
- Advanced Center for Chronic Diseases (ACCDiS), Facultad de Ciencias Químicas y Farmacéuticas & Facultad de Medicina, Universidad de Chile, Santiago, Chile; Instituto de Investigación en Ciencias Odontológicas (ICOD), Facultad de Odontología, Universidad de Chile, Santiago, Chile.
| | - Sergio Lavandero
- Advanced Center for Chronic Diseases (ACCDiS), Facultad de Ciencias Químicas y Farmacéuticas & Facultad de Medicina, Universidad de Chile, Santiago, Chile; Center for Studies of Exercise, Metabolism and Cancer Studies (CEMC), Facultad de Ciencias Químicas y Farmacéuticas & Facultad de Medicina, Universidad de Chile, Santiago, Chile; Cardiology Division, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA.
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Kosmas CE, Silverio D, Tsomidou C, Salcedo MD, Montan PD, Guzman E. The Impact of Insulin Resistance and Chronic Kidney Disease on Inflammation and Cardiovascular Disease. CLINICAL MEDICINE INSIGHTS-ENDOCRINOLOGY AND DIABETES 2018; 11:1179551418792257. [PMID: 30083062 PMCID: PMC6071166 DOI: 10.1177/1179551418792257] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Accepted: 07/07/2018] [Indexed: 12/13/2022]
Abstract
There is extensive evidence showing that insulin resistance (IR) is associated
with chronic low-grade inflammation. Furthermore, IR has been shown to increase
the risk for cardiovascular disease (CVD), even in nondiabetic patients, and is
currently considered as a “nontraditional” risk factor contributing to CVD by
promoting hypertension, oxidative stress, endothelial dysfunction, dyslipidemia,
and type 2 diabetes mellitus. However, chronic kidney disease (CKD) is also
considered a state of low-grade inflammation. In addition, CKD is considered an
IR state and has been described as an independent risk factor for the
development of CVD, as even early-stage CKD is associated with an estimated 40%
to 100% increase in CVD risk. There is also strong evidence indicating that
inflammation per se plays a crucial role in both the initiation and progression
of CVD. Given the above, the combined effect of IR and CKD may significantly
increase the risk of inflammation and CVD. This review aims to focus on the
complex interplay between IR, CKD, inflammation, and CVD and will present and
discuss the current clinical and scientific data pertaining to the impact of IR
and CKD on inflammation and CVD.
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Affiliation(s)
- Constantine E Kosmas
- Division of Cardiology, Department of Medicine, Mount Sinai Hospital, New York, NY, USA
| | - Delia Silverio
- Cardiology Clinic, Cardiology Unlimited PC, New York, NY, USA
| | - Christiana Tsomidou
- Department of Medicine, General Clinic of Piraeus "Hippocrates", Piraeus, Greece
| | - Maria D Salcedo
- Cardiology Clinic, Cardiology Unlimited PC, New York, NY, USA
| | - Peter D Montan
- Cardiology Clinic, Cardiology Unlimited PC, New York, NY, USA
| | - Eliscer Guzman
- Division of Cardiology, Department of Medicine, Montefiore Medical Center, Bronx, NY, USA
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45
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Kang SY, Kim E, Kang I, Lee M, Lee Y. Anti-Diabetic Effects and Anti-Inflammatory Effects of Laminaria japonica and Hizikia fusiforme in Skeletal Muscle: In Vitro and In Vivo Model. Nutrients 2018; 10:E491. [PMID: 29659527 PMCID: PMC5946276 DOI: 10.3390/nu10040491] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Revised: 04/13/2018] [Accepted: 04/13/2018] [Indexed: 12/30/2022] Open
Abstract
Laminaria japonica (LJ) and Hizikia fusiforme (HF) are brown seaweeds known to have various health-promoting effects. In this study, we investigated the anti-diabetic effects and possible mechanism(s) of LJ and HF by using both in vitro and in vivo models. C2C12 myotubes, mouse-derived skeletal muscle cells, treated with LF or HF extracts were used for the in vitro model, and muscle tissues from C57BL/6N mice fed a high-fat diet supplemented with 5% LF or HF for 16 weeks were used for the in vivo model. Although both the LF and HF extracts significantly inhibited α-glucosidase activity in a dose-dependent manner, the HF extract had a superior α-glucosidase inhibition than the LF extract. In addition, glucose uptake was significantly increased by LJ- and HF-treated groups when compared to the control group. Phosphorylation of protein kinase B and AMP-activated protein kinase was induced by LJ and HF in both the vivo and in vitro skeletal muscle models. Furthermore, LJ and HF significantly decreased tumor necrosis factor-α whereas both extracts increased interleukin (IL)-6 and IL-10 production in lipopolysaccharide-stimulated C2C12 myotubes. Taken together, these findings imply that the brown seaweeds LJ and HF could be useful therapeutic agents to attenuate muscle insulin resistance due to diet-induced obesity and its associated inflammation.
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Affiliation(s)
- Sae-Ym Kang
- Dietetics Team, Cheju Halla General Hospital, Jeju 63127, Korea.
| | - Eunyoung Kim
- Department of Food Science and Nutrition, Jeju National University, Jeju 63243, Korea.
| | - Inhae Kang
- Department of Food Science and Nutrition, Jeju National University, Jeju 63243, Korea.
| | - Myoungsook Lee
- Department of Food and Nutrition, Research Institute of Obesity Sciences, Sungshin Women's University, Seoul 01133, Korea.
| | - Yunkyoung Lee
- Department of Food Science and Nutrition, Jeju National University, Jeju 63243, Korea.
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IL-6 signalling pathways and the development of type 2 diabetes. Inflammopharmacology 2018; 26:685-698. [PMID: 29508109 DOI: 10.1007/s10787-018-0458-0] [Citation(s) in RCA: 136] [Impact Index Per Article: 22.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Accepted: 02/21/2018] [Indexed: 02/07/2023]
Abstract
Interleukin 6 (IL-6), a multifunctional cytokine, has been implicated in the pathophysiology of type 2 diabetes (T2D). The elevated circulating level of IL-6 is an independent predictor of T2D and is considered to be involved in the development of inflammation, insulin resistance and β-cell dysfunction. On the other hand, an increasing number of evidence suggests that IL-6 has an anti-inflammatory role and improves glucose metabolism. The complex signal transduction mechanism of IL-6 may help explain the pleiotropic nature of the cytokine. IL-6 acts via two distinct signalling pathways called classic signalling and trans-signalling. While both signalling modes lead to activation of the same receptor subunit, their final biological effects are completely different. The aim of this review is to summarize our current knowledge about the role of IL-6 in the development of T2D. We will also discuss the importance of specific blockade of IL-6 trans-signalling rather than inhibiting both signalling pathways as a therapeutic strategy for the treatment of T2D and its associated macrovascular complications.
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Recent advances in biosensor technology in assessment of early diabetes biomarkers. Biosens Bioelectron 2018; 99:122-135. [DOI: 10.1016/j.bios.2017.07.047] [Citation(s) in RCA: 74] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Revised: 07/17/2017] [Accepted: 07/18/2017] [Indexed: 01/26/2023]
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Ashcheulova T, Kochubiei O, Demydenko G, Gerasimchuk N, Maliy A. Oncostatin M, Interleukin-6, Glucometabolic Parameters and Lipid Profile in Hypertensive Patients with Prediabetes and Type 2 Diabetes Mellitus. ROMANIAN JOURNAL OF DIABETES NUTRITION AND METABOLIC DISEASES 2017. [DOI: 10.1515/rjdnmd-2017-0040] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
Background and aims: Essential hypertension and type 2 diabetes mellitus possess some common pathogenetic components, in particular, activation of immune inflammatory response, the intercellular mediators of which are cytokines. In our study, hypertensive patients were examined, depending on presence of concomitant prediabetes or type 2 diabetes mellitus, for the level of pro-inflammatory cytokines oncostatin M, interleukin-6 in conjunction with glucometabolic parameters and lipid metabolism parameters.
Material and methods: A total of 94 hypertensive patients were examined. Oncostatin M and Interleukin-6 plasma level detected using ELISA (BSM).
Results and conclusions: The 1st group consisted of hypertensive patients. The 2nd group included hypertensive patients with prediabetes. The 3rd group were hypertensive patients with type 2 diabetes mellitus. We have revealed the increased circulating level of oncostatin M and interleukin-6 in patients 1st group, which confirms the pathogenetic value of hypertension as a stimulus for hyperproduction of these cytokines. In 2nd group the level of oncostatin M and interleukin-6 decreased, which could probably be explained, on the one hand, by dual effects of the family of interleukin-6 the representatives of which either contribute to the development of insulin resistance or, vice versa, enhance the insulin sensitivity of tissues.
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Affiliation(s)
- Tetiana Ashcheulova
- Department of Propedeutics of Internal Medicine N1, Basis of Bioethics and Biosafety , Kharkiv National Medical University , Kharkiv , Ukraine
| | - Oksana Kochubiei
- Department of Propedeutics of Internal Medicine N1, Basis of Bioethics and Biosafety , Kharkiv National Medical University , Kharkiv , Ukraine
| | - Ganna Demydenko
- Department of Propedeutics of Internal Medicine N1, Basis of Bioethics and Biosafety , Kharkiv National Medical University , Kharkiv , Ukraine
| | - Nina Gerasimchuk
- Department of Propedeutics of Internal Medicine N1, Basis of Bioethics and Biosafety , Kharkiv National Medical University , Kharkiv , Ukraine
| | - Alla Maliy
- Chair of Foreign Languages of Psychology and Sociology Faculties , Kyiv National Taras Shevchenko University , Kyiv , Ukraine
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Surcel M, Constantin C, Caruntu C, Zurac S, Neagu M. Inflammatory Cytokine Pattern Is Sex-Dependent in Mouse Cutaneous Melanoma Experimental Model. J Immunol Res 2017; 2017:9212134. [PMID: 29318162 PMCID: PMC5727748 DOI: 10.1155/2017/9212134] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Revised: 10/09/2017] [Accepted: 10/22/2017] [Indexed: 12/16/2022] Open
Abstract
We present the evaluation of inflammatory cytokines in mouse cutaneous melanoma experimental model, as markers of disease evolution. Moreover, to test our experimental model, we have used low doses of dacarbazine (DTIC). C57 BL/6J mouse of both sexes were subjected to experimental cutaneous melanoma and treated with low doses of DTIC. Clinical parameters and serum cytokines were followed during tumor evolution and during DTIC therapy. Cytokine/chemokine pattern was assessed using xMAP technology and the following molecules were quantified: interleukins (IL)-1-beta, IL-6, IL-10, IL-12 (p70), interferon (IFN)-gamma, granulocyte macrophage colony-stimulating factor (GM-CSF), tumor necrosis factor (TNF)-alpha, macrophage inflammatory protein (MIP)-1alpha, monocyte chemoattractant protein (MCP-1), and keratinocyte-derived chemokine (KC). Significant differences were found between normal females and males mice, female mice having a statistically higher serum concentration of IL-1-beta compared to male mice, while males have a significantly higher concentration of MIP-1-alpha. During melanoma evolution in the female group, IL-1-beta, MIP-1-alpha, and KC circulatory levels were found 10-fold increased, while other cytokines doubled their values. In the male mice group, only circulatory KC increased 4 times, while IL-1-beta and TNF-alpha doubled their circulatory values. Various serum cytokines correlated with the disease evolution in cutaneous melanoma mouse model.
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Affiliation(s)
- Mihaela Surcel
- Immunology Department, “Victor Babes” National Institute of Pathology, 99-101 Spl. Independentei, 050096 Bucharest, Romania
- Faculty of Biology, University of Bucharest, 91-95 Spl. Independentei, 76201 Bucharest, Romania
| | - Carolina Constantin
- Immunology Department, “Victor Babes” National Institute of Pathology, 99-101 Spl. Independentei, 050096 Bucharest, Romania
- Colentina University Hospital, 19-21 Stefan cel Mare Blv., 020125 Bucharest, Romania
| | - Constantin Caruntu
- “Carol Davila” University of Pharmacy and Medicine, 37 Dionisie Lupu Street, 020021 Bucharest, Romania
| | - Sabina Zurac
- Colentina University Hospital, 19-21 Stefan cel Mare Blv., 020125 Bucharest, Romania
- “Carol Davila” University of Pharmacy and Medicine, 37 Dionisie Lupu Street, 020021 Bucharest, Romania
| | - Monica Neagu
- Immunology Department, “Victor Babes” National Institute of Pathology, 99-101 Spl. Independentei, 050096 Bucharest, Romania
- Faculty of Biology, University of Bucharest, 91-95 Spl. Independentei, 76201 Bucharest, Romania
- Colentina University Hospital, 19-21 Stefan cel Mare Blv., 020125 Bucharest, Romania
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The role of exercise-induced myokines in regulating metabolism. Arch Pharm Res 2017; 41:14-29. [DOI: 10.1007/s12272-017-0994-y] [Citation(s) in RCA: 118] [Impact Index Per Article: 16.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2017] [Accepted: 11/21/2017] [Indexed: 12/25/2022]
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