1
|
Leow SS, Khoo JS, Lee WK, Hoh CC, Fairus S, Sambanthamurthi R, Hayes KC. RNA-Seq transcriptome profiling of Nile rat livers reveals novel insights on the anti-diabetic mechanisms of Water-Soluble Palm Fruit Extract. J Appl Genet 2024:10.1007/s13353-024-00880-1. [PMID: 38890243 DOI: 10.1007/s13353-024-00880-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 04/08/2024] [Accepted: 05/15/2024] [Indexed: 06/20/2024]
Abstract
Water-Soluble Palm Fruit Extract (WSPFE) has been shown to confer anti-diabetic effects in the Nile rat (NR) (Arvicanthis niloticus). Liquid and powder WSPFE both deterred diabetes onset in NRs fed a high-carbohydrate (hiCHO) diet, but the liquid form provided better protection. In this study, NRs were fed either a hiCHO diet or the same diet added with liquid or powder WSPFE. Following feeding of the diets for 8 weeks, random blood glucose levels were measured to categorize NRs as either diabetes-resistant or diabetes-susceptible, based on a cut-off value of 75 mg/dL. Livers were then obtained for Illumina HiSeq 4000 paired end RNA-sequencing (RNA-Seq) and the data were mapped to the reference genome. Consistent with physiological and biochemical parameters, the gene expression data obtained indicated that WSPFE was associated with protection against diabetes. Among hepatic genes upregulated by WSPFE versus controls, were genes related to insulin-like growth factor binding protein, leptin receptor, and processes of hepatic metabolism maintenance, while those downregulated were related to antigen binding, immunoglobulin receptor, inflammation- and cancer-related processes. WSPFE supplementation thus helped inhibit diabetes progression in NRs by increasing insulin sensitivity and reducing both the inflammatory effects of a hiCHO diet and the related DNA-damage compensatory mechanisms contributing to liver disease progression. In addition, the genetic permissiveness of susceptible NRs to develop diabetes was potentially associated with dysregulated compensatory mechanisms involving insulin signaling and oxidative stress over time. Further studies on other NR organs associated with diabetes and its complications are warranted.
Collapse
Affiliation(s)
- Soon-Sen Leow
- Malaysian Palm Oil Board, No. 6, Persiaran Institusi, Bandar Baru Bangi, 43000, Kajang, Selangor, Malaysia.
| | - Jia-Shiun Khoo
- Codon Genomics Sdn Bhd, No. 26, Jalan Dutamas 7, Taman Dutamas Balakong, 43200, Seri Kembangan, Selangor, Malaysia
| | - Wei-Kang Lee
- Codon Genomics Sdn Bhd, No. 26, Jalan Dutamas 7, Taman Dutamas Balakong, 43200, Seri Kembangan, Selangor, Malaysia
| | - Chee-Choong Hoh
- Codon Genomics Sdn Bhd, No. 26, Jalan Dutamas 7, Taman Dutamas Balakong, 43200, Seri Kembangan, Selangor, Malaysia
| | - Syed Fairus
- Malaysian Palm Oil Board, No. 6, Persiaran Institusi, Bandar Baru Bangi, 43000, Kajang, Selangor, Malaysia
| | - Ravigadevi Sambanthamurthi
- Malaysian Palm Oil Board, No. 6, Persiaran Institusi, Bandar Baru Bangi, 43000, Kajang, Selangor, Malaysia
- Academy of Sciences Malaysia, Level 20, West Wing, MATRADE Tower, Jalan Sultan Haji Ahmad Shah, Off Jalan Tuanku Abdul Halim, 50480, Kuala Lumpur, Malaysia
| | - K C Hayes
- Brandeis University, 415 South Street, Waltham, MA, 02454, USA
| |
Collapse
|
2
|
Li D, Huang Y, Wei M, Chen B, Lu Y. Overexpression of SOCS2 Inhibits EMT and M2 Macrophage Polarization in Cervical Cancer via IL-6/JAK2/STAT3 Pathway. Comb Chem High Throughput Screen 2024; 27:984-995. [PMID: 37594110 DOI: 10.2174/1386207326666230818092532] [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: 01/03/2023] [Revised: 06/13/2023] [Accepted: 07/13/2023] [Indexed: 08/19/2023]
Abstract
OBJECTIVE SOCS2 is a member of the suppressor of cytokine signaling (SOCS) protein family associated with the occurrence and development of multiple cancers. This study revealed the expression and molecular mechanisms of SOCS2 in cervical cancer. METHODS In this study, RT-qPCR, Western Blot, and immunohistochemistry were used to detect the expression level of SOCS2 in cervical cancer tissues and tumor cells. We overexpressed SOCS2 in SiHa cells via lentivirus. In-vitro experiments were used to investigate the changes in cervical cancer cell proliferation, migration, and invasion ability before and after SOCS2 overexpression. Western Blot was used to detect the expression of IL-6/JAK2/STAT3 pathway and EMTrelated proteins. M0 macrophages were co-cultured with the tumor-conditioned medium. The effect of SOCS2 on macrophage polarization was examined by RT-qPCR. RESULTS SOCS2 expression level was significantly downregulated in cervical cancer tissues. SOCS2 was negatively correlated with CD163+M2 macrophages. Overexpression of SOCS2 inhibited the proliferation, migration, and invasion of cervical cancer cells. The expressions of Twist- 2, N-cadherin, and Vimentin were decreased, while the expression of E-cadherin was increased. Moreover, the expression of IL-6, p-JAK2, and p-STAT3 were decreased. After the addition of RhIL-6, the expression of E-cadherin protein in the LV-SOCS2 group was reversed. CM in the LV-SOCS2 group inhibited the polarization of M2 macrophages. CONCLUSION SOCS2 acts as a novel biological target and suppressor of cervical cancer through IL- 6/JAK2/STAT3 pathway.
Collapse
Affiliation(s)
- Dan Li
- Department of Gynecologic Oncology, Guangxi Medical University Cancer Hospital, Nanning, Guangxi, 530021, People's Republic of China
| | - Yandan Huang
- Department of Gynecologic Oncology, Guangxi Medical University Cancer Hospital, Nanning, Guangxi, 530021, People's Republic of China
| | - Min Wei
- Department of Gynecologic, Guangxi Medical University Affiliated National Hospital, Nanning, Guangxi, 530021, People's Republic of China
| | - Bin Chen
- Department of Gynecologic Oncology, Guangxi Medical University Cancer Hospital, Nanning, Guangxi, 530021, People's Republic of China
| | - Yan Lu
- Department of Gynecologic Oncology, Guangxi Medical University Cancer Hospital, Nanning, Guangxi, 530021, People's Republic of China
| |
Collapse
|
3
|
Hrovatin K, Bastidas-Ponce A, Bakhti M, Zappia L, Büttner M, Salinno C, Sterr M, Böttcher A, Migliorini A, Lickert H, Theis FJ. Delineating mouse β-cell identity during lifetime and in diabetes with a single cell atlas. Nat Metab 2023; 5:1615-1637. [PMID: 37697055 PMCID: PMC10513934 DOI: 10.1038/s42255-023-00876-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Accepted: 07/26/2023] [Indexed: 09/13/2023]
Abstract
Although multiple pancreatic islet single-cell RNA-sequencing (scRNA-seq) datasets have been generated, a consensus on pancreatic cell states in development, homeostasis and diabetes as well as the value of preclinical animal models is missing. Here, we present an scRNA-seq cross-condition mouse islet atlas (MIA), a curated resource for interactive exploration and computational querying. We integrate over 300,000 cells from nine scRNA-seq datasets consisting of 56 samples, varying in age, sex and diabetes models, including an autoimmune type 1 diabetes model (NOD), a glucotoxicity/lipotoxicity type 2 diabetes model (db/db) and a chemical streptozotocin β-cell ablation model. The β-cell landscape of MIA reveals new cell states during disease progression and cross-publication differences between previously suggested marker genes. We show that β-cells in the streptozotocin model transcriptionally correlate with those in human type 2 diabetes and mouse db/db models, but are less similar to human type 1 diabetes and mouse NOD β-cells. We also report pathways that are shared between β-cells in immature, aged and diabetes models. MIA enables a comprehensive analysis of β-cell responses to different stressors, providing a roadmap for the understanding of β-cell plasticity, compensation and demise.
Collapse
Affiliation(s)
- Karin Hrovatin
- Institute of Computational Biology, Helmholtz Zentrum München, Neuherberg, Germany
- TUM School of Life Sciences Weihenstephan, Technical University of Munich, Freising, Germany
| | - Aimée Bastidas-Ponce
- Institute of Diabetes and Regeneration Research, Helmholtz Zentrum München, Neuherberg, Germany
- German Center for Diabetes Research (DZD), Neuherberg, Germany
- Medical Faculty, Technical University of Munich, Munich, Germany
| | - Mostafa Bakhti
- Institute of Diabetes and Regeneration Research, Helmholtz Zentrum München, Neuherberg, Germany
- German Center for Diabetes Research (DZD), Neuherberg, Germany
| | - Luke Zappia
- Institute of Computational Biology, Helmholtz Zentrum München, Neuherberg, Germany
- Department of Mathematics, Technical University of Munich, Garching, Germany
| | - Maren Büttner
- Institute of Computational Biology, Helmholtz Zentrum München, Neuherberg, Germany
- Genomics and Immunoregulation, Life & Medical Sciences (LIMES) Institute, University of Bonn, Bonn, Germany
- Systems Medicine, Deutsches Zentrum für Neurodegenerative Erkrankungen (DZNE), Bonn, Germany
| | - Ciro Salinno
- Institute of Diabetes and Regeneration Research, Helmholtz Zentrum München, Neuherberg, Germany
- German Center for Diabetes Research (DZD), Neuherberg, Germany
- Medical Faculty, Technical University of Munich, Munich, Germany
| | - Michael Sterr
- Institute of Diabetes and Regeneration Research, Helmholtz Zentrum München, Neuherberg, Germany
- German Center for Diabetes Research (DZD), Neuherberg, Germany
| | - Anika Böttcher
- Institute of Diabetes and Regeneration Research, Helmholtz Zentrum München, Neuherberg, Germany
- German Center for Diabetes Research (DZD), Neuherberg, Germany
| | - Adriana Migliorini
- Institute of Diabetes and Regeneration Research, Helmholtz Zentrum München, Neuherberg, Germany
- German Center for Diabetes Research (DZD), Neuherberg, Germany
- McEwen Stem Cell Institute, University Health Network (UHN), Toronto, Ontario, Canada
| | - Heiko Lickert
- Institute of Diabetes and Regeneration Research, Helmholtz Zentrum München, Neuherberg, Germany.
- German Center for Diabetes Research (DZD), Neuherberg, Germany.
- Medical Faculty, Technical University of Munich, Munich, Germany.
| | - Fabian J Theis
- Institute of Computational Biology, Helmholtz Zentrum München, Neuherberg, Germany.
- TUM School of Life Sciences Weihenstephan, Technical University of Munich, Freising, Germany.
- Department of Mathematics, Technical University of Munich, Garching, Germany.
| |
Collapse
|
4
|
Naser W, Maymand S, Rivera LR, Connor T, Liongue C, Smith CM, Aston-Mourney K, McCulloch DR, McGee SL, Ward AC. Cytokine-inducible SH2 domain containing protein contributes to regulation of adiposity, food intake, and glucose metabolism. FASEB J 2022; 36:e22320. [PMID: 35470501 DOI: 10.1096/fj.202101882r] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Revised: 03/24/2022] [Accepted: 04/06/2022] [Indexed: 01/03/2023]
Abstract
The cytokine-inducible SH2 domain containing protein (CISH) is the founding member of the suppressor of cytokine signaling (SOCS) family of negative feedback regulators and has been shown to be a physiological regulator of signaling in immune cells. This study sought to investigate novel functions for CISH outside of the immune system. Mice deficient in CISH were generated and analyzed using a range of metabolic and other parameters, including in response to a high fat diet and leptin administration. CISH knockout mice possessed decreased body fat and showed resistance to diet-induced obesity. This was associated with reduced food intake, but unaltered energy expenditure and microbiota composition. CISH ablation resulted in reduced basal expression of the orexigenic Agrp gene in the arcuate nucleus (ARC) region of the brain. Cish was basally expressed in the ARC, with evidence of co-expression with the leptin receptor (Lepr) gene in Agrp-positive neurons. CISH-deficient mice also showed enhanced leptin responsiveness, although Cish expression was not itself modulated by leptin. CISH-deficient mice additionally exhibited improved insulin sensitivity on a high-fat diet, but not glucose tolerance despite reduced body weight. These data identify CISH as an important regulator of homeostasis through impacts on appetite control, mediated at least in part by negative regulation of the anorexigenic effects of leptin, and impacts on glucose metabolism.
Collapse
Affiliation(s)
- Wasan Naser
- School of Medicine, Deakin University, Geelong, Victoria, Australia.,College of Science, University of Baghdad, Baghdad, Iraq
| | - Saeed Maymand
- School of Medicine, Deakin University, Geelong, Victoria, Australia
| | - Leni R Rivera
- School of Medicine, Deakin University, Geelong, Victoria, Australia.,IMPACT, Deakin University, Geelong, Victoria, Australia
| | - Timothy Connor
- School of Medicine, Deakin University, Geelong, Victoria, Australia
| | - Clifford Liongue
- School of Medicine, Deakin University, Geelong, Victoria, Australia.,IMPACT, Deakin University, Geelong, Victoria, Australia
| | - Craig M Smith
- School of Medicine, Deakin University, Geelong, Victoria, Australia.,IMPACT, Deakin University, Geelong, Victoria, Australia
| | - Kathryn Aston-Mourney
- School of Medicine, Deakin University, Geelong, Victoria, Australia.,IMPACT, Deakin University, Geelong, Victoria, Australia
| | - Daniel R McCulloch
- School of Medicine, Deakin University, Geelong, Victoria, Australia.,IMPACT, Deakin University, Geelong, Victoria, Australia
| | - Sean L McGee
- School of Medicine, Deakin University, Geelong, Victoria, Australia.,IMPACT, Deakin University, Geelong, Victoria, Australia
| | - Alister C Ward
- School of Medicine, Deakin University, Geelong, Victoria, Australia.,IMPACT, Deakin University, Geelong, Victoria, Australia
| |
Collapse
|
5
|
Pan J, Tong R, Deng Q, Tian Y, Wang N, Peng Y, Fei S, Zhang W, Cui J, Guo C, Yao J, Wei C, Xu J. The Effect of SOCS2 Polymorphisms on Type 2 Diabetes Mellitus Susceptibility and Diabetic Complications in the Chinese Han Population. Pharmgenomics Pers Med 2022; 15:65-79. [PMID: 35125882 PMCID: PMC8809519 DOI: 10.2147/pgpm.s347018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Accepted: 12/23/2021] [Indexed: 12/07/2022] Open
Abstract
Background SOCS2 is downregulated in diabetes, which might be related to diabetes. We explored the effect of SOCS2 polymorphisms on the development of type 2 diabetes mellitus (T2DM) and diabetic complications. Methods The subjects consisted of 500 patients with T2DM and 501 healthy controls. Five variants in SOCS2 were genotyped by Agena MassARRAY system. RT-qPCR profiling was performed to detect the expression of SOCS2 mRNA. Logistic regression analysis was utilized to calculate odds ratio (OR) and 95% confidence intervals (95% CIs). Results Rs3825199 (OR = 1.44, p = 0.007), rs11107116 (OR = 1.39, p = 0.014) and rs10492321 (OR = 1.48, p = 0.004) had an increased T2DM risk of T2DM. Moreover, the contribution of SOCS2 polymorphisms to T2DM risk was associated with age, gender, smoking, drinking, and BMI. SOCS2 variants also had a reduced risk for T2DM patients with diabetic nephropathy, diabetic retinopathy and coronary heart disease. SOCS2 rs10492321 was the best single locus model. SOCS2 mRNA was downregulated in patients with T2DM compared to healthy controls (p = 0.029). Conclusion This study firstly reported that rs3825199, rs11107116 and rs10492321 in SOCS2 conferred to an increased risk for the occurrence of T2DM in the Chinese Han population. Moreover, SOCS2 mRNA was downregulated in patients with T2DM, suggesting that SOCS2 might have an important role in the occurrence of T2DM.
Collapse
Affiliation(s)
- Juan Pan
- Department of Geriatric Endocrinology, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, 710061, Shaanxi, People’s Republic of China
- Department of Endocrinology, Xianyang Central Hospital, Xianyang, 712000, Shaanxi, People’s Republic of China
| | - Rui Tong
- Department of Geriatric Endocrinology, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, 710061, Shaanxi, People’s Republic of China
| | - Qing Deng
- Department of Endocrinology, No. 215 Hospital of Shaanxi Nuclear Industry, Xianyang, 712000, Shaanxi, People’s Republic of China
| | - Yanni Tian
- Department of Geriatric Endocrinology, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, 710061, Shaanxi, People’s Republic of China
| | - Ning Wang
- Department of Geriatric Endocrinology, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, 710061, Shaanxi, People’s Republic of China
| | - Yanqi Peng
- Department of Geriatric Endocrinology, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, 710061, Shaanxi, People’s Republic of China
| | - Sijia Fei
- Department of Geriatric Endocrinology, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, 710061, Shaanxi, People’s Republic of China
| | - Wei Zhang
- Department of Breast Surgery, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, 710061, Shaanxi, People’s Republic of China
| | - Jiaqi Cui
- Department of Geriatric Endocrinology, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, 710061, Shaanxi, People’s Republic of China
| | - Chaoying Guo
- Department of Geriatric Endocrinology, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, 710061, Shaanxi, People’s Republic of China
| | - Juanchuan Yao
- Department of Geriatric Endocrinology, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, 710061, Shaanxi, People’s Republic of China
| | - Cui Wei
- Department of Geriatric Endocrinology, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, 710061, Shaanxi, People’s Republic of China
- Correspondence: Cui Wei; Jing Xu, Department of Geriatric Endocrinology, The First Affiliated Hospital of Xi’an Jiaotong University, #277 West Yanta Road, Xi’an, 710061, Shaanxi, People’s Republic of China, Tel +86 18991232462; Tel +86 18991232462 Email ;
| | - Jing Xu
- Department of Geriatric Endocrinology, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, 710061, Shaanxi, People’s Republic of China
| |
Collapse
|
6
|
Ahmed SAH, Ansari SA, Mensah-Brown EPK, Emerald BS. The role of DNA methylation in the pathogenesis of type 2 diabetes mellitus. Clin Epigenetics 2020; 12:104. [PMID: 32653024 PMCID: PMC7353744 DOI: 10.1186/s13148-020-00896-4] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Accepted: 06/30/2020] [Indexed: 12/14/2022] Open
Abstract
Diabetes mellitus (DM) is a chronic condition characterised by β cell dysfunction and persistent hyperglycaemia. The disorder can be due to the absence of adequate pancreatic insulin production or a weak cellular response to insulin signalling. Among the three types of DM, namely, type 1 DM (T1DM), type 2 DM (T2DM), and gestational DM (GDM); T2DM accounts for almost 90% of diabetes cases worldwide. Epigenetic traits are stably heritable phenotypes that result from certain changes that affect gene function without altering the gene sequence. While epigenetic traits are considered reversible modifications, they can be inherited mitotically and meiotically. In addition, epigenetic traits can randomly arise in response to environmental factors or certain genetic mutations or lesions, such as those affecting the enzymes that catalyse the epigenetic modification. In this review, we focus on the role of DNA methylation, a type of epigenetic modification, in the pathogenesis of T2DM.
Collapse
Affiliation(s)
- Sanabil Ali Hassan Ahmed
- Department of Anatomy, College of Medicine and Health Sciences, United Arab Emirates University, PO Box 17666, Al Ain, Abu Dhabi, United Arab Emirates
| | - Suraiya Anjum Ansari
- Department of Biochemistry, College of Medicine and Health Sciences, United Arab Emirates University, PO Box 17666, Al Ain, Abu Dhabi, United Arab Emirates
| | - Eric P K Mensah-Brown
- Department of Anatomy, College of Medicine and Health Sciences, United Arab Emirates University, PO Box 17666, Al Ain, Abu Dhabi, United Arab Emirates
| | - Bright Starling Emerald
- Department of Anatomy, College of Medicine and Health Sciences, United Arab Emirates University, PO Box 17666, Al Ain, Abu Dhabi, United Arab Emirates.
| |
Collapse
|
7
|
Shahen VA, Gerbaix M, Koeppenkastrop S, Lim SF, McFarlane KE, Nguyen ANL, Peng XY, Weiss NB, Brennan-Speranza TC. Multifactorial effects of hyperglycaemia, hyperinsulinemia and inflammation on bone remodelling in type 2 diabetes mellitus. Cytokine Growth Factor Rev 2020; 55:109-118. [PMID: 32354674 DOI: 10.1016/j.cytogfr.2020.04.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Accepted: 04/08/2020] [Indexed: 12/14/2022]
Abstract
Bones undergo continuous cycles of bone remodelling that rely on the balance between bone formation and resorption. This balance allows the bone to adapt to changes in mechanical loads and repair microdamages. However, this balance is susceptible to upset in various conditions, leading to impaired bone remodelling and abnormal bones. This is usually indicated by abnormal bone mineral density (BMD), an indicator of bone strength. Despite this, patients with type 2 diabetes mellitus (T2DM) exhibit normal to high BMD, yet still suffer from an increased risk of fractures. The activity of the bone cells is also altered as indicated by the reduced levels of bone turnover markers in T2DM observed in the circulation. The underlying mechanisms behind these skeletal outcomes in patients with T2DM remain unclear. This review summarises recent findings regarding inflammatory cytokine factors associated with T2DM to understand the mechanisms involved and considers potential therapeutic interventions.
Collapse
Affiliation(s)
- V A Shahen
- Department of Physiology, School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Australia
| | - M Gerbaix
- Division of Bone Diseases, Department of Internal Medicine Specialties, Geneva University Hospital & Faculty of Medicine, Geneva, Switzerland
| | - S Koeppenkastrop
- Department of Physiology, School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Australia
| | - S F Lim
- Department of Physiology, School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Australia
| | - K E McFarlane
- Department of Physiology, School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Australia
| | - Amanda N L Nguyen
- Department of Physiology, School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Australia
| | - X Y Peng
- Department of Physiology, School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Australia
| | - N B Weiss
- Department of Physiology, School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Australia
| | - T C Brennan-Speranza
- Department of Physiology, School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Australia; School of Public Health, Faculty of Medicine and Health, The University of Sydney, Australia.
| |
Collapse
|
8
|
Banerjee RR. Piecing together the puzzle of pancreatic islet adaptation in pregnancy. Ann N Y Acad Sci 2019; 1411:120-139. [PMID: 29377199 DOI: 10.1111/nyas.13552] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Revised: 10/18/2017] [Accepted: 10/24/2017] [Indexed: 12/20/2022]
Abstract
Pregnancy places acute demands on maternal physiology, including profound changes in glucose homeostasis. Gestation is characterized by an increase in insulin resistance, counterbalanced by an adaptive increase in pancreatic β cell production of insulin. Failure of normal adaptive responses of the islet to increased maternal and fetal demands manifests as gestational diabetes mellitus (GDM). The gestational changes and rapid reversal of islet adaptations following parturition are at least partly driven by an anticipatory program rather than post-factum compensatory adaptations. Here, I provide a comprehensive review of the cellular and molecular mechanisms underlying normal islet adaptation during pregnancy and how dysregulation may lead to GDM. Emerging areas of interest and understudied areas worthy of closer examination in the future are highlighted.
Collapse
Affiliation(s)
- Ronadip R Banerjee
- Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, and the Comprehensive Diabetes Center, University of Alabama at Birmingham School of Medicine, Birmingham, Alabama
| |
Collapse
|
9
|
Li J, Dong R, Yu J, Yi S, Da J, Yu F, Zha Y. Inhibitor of IGF1 receptor alleviates the inflammation process in the diabetic kidney mouse model without activating SOCS2. Drug Des Devel Ther 2018; 12:2887-2896. [PMID: 30254418 PMCID: PMC6141121 DOI: 10.2147/dddt.s171638] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Objective To explore the anti-inflammatory mechanism of IGF1R inhibitor in diabetic nephropathy. Methods C57/BL6 mice were reared with high-fat diet for 8 weeks, then were injected 30 mg/kg streptozotocin intraperitoneally to induce type 2 diabetes. After 8 weeks, the type 2 diabetes nephropathy model was successfully set up the different drugs were administrated to mice with diabetes (insulin 1-2 U/day, benazepril 10 mg/kg per day intragastrically, IGF-1R inhibitor 30 mg/kg per day intragastrically). After 8 weeks drugs administration, all mice were collected the kidney tissue, measured levels of inflammatory factor (F4/80, TLR4and CD68) and fibrosis markers(αSMA, E-cadherin and SR) using immunohistochemistry and in situ hybridization. Results The type 2 diabetes nephropathy model was built successfully, which along with increased urinary protein excretion rate and increased inflammatory infiltration, and the correlation was characterized by increased CD68+, F4/80+ cells and increased TLR4, αSMA, SR expression. IGF-1R inhibitors reversed this changes, but benazepril and insulin were without significant changes. The insulin decreased the expression level of IGF-1, and increased the levels of suppressor of cytokine signaling 2 (SOCS2). Benazepril and IGF-1R inhibitor were no significant changes like insulin. Conclusion Inhibition of IGF1R was a more effective choice for inflammation treatment than Ben or Ins in diabetic kidney disease (DKD). The IGF1R inhibitor blocked pathological changes induced by the over-expression of IGF1 in DKD without up-regulating SOCS2 protein levels.
Collapse
Affiliation(s)
- Jiayu Li
- Guizhou University School of Medicine, Guizhou University
| | - Rong Dong
- Department of Nephrology, Guizhou Provincial People's Hospital,
| | - Jiali Yu
- Department of Nephrology, Guizhou Provincial People's Hospital,
| | - Sun Yi
- Department of Nephrology, Guizhou Provincial People's Hospital,
| | - Jingjing Da
- Department of Nephrology, Guizhou Provincial People's Hospital,
| | - Fuxun Yu
- Department of Central Laboratory, Guizhou Provincial People's Hospital, Guiyang, China
| | - Yan Zha
- Department of Nephrology, Guizhou Provincial People's Hospital,
| |
Collapse
|
10
|
Janjuha S, Singh SP, Tsakmaki A, Mousavy Gharavy SN, Murawala P, Konantz J, Birke S, Hodson DJ, Rutter GA, Bewick GA, Ninov N. Age-related islet inflammation marks the proliferative decline of pancreatic beta-cells in zebrafish. eLife 2018; 7:32965. [PMID: 29624168 PMCID: PMC5943033 DOI: 10.7554/elife.32965] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2017] [Accepted: 04/05/2018] [Indexed: 12/12/2022] Open
Abstract
The pancreatic islet, a cellular community harboring the insulin-producing beta-cells, is known to undergo age-related alterations. However, only a handful of signals associated with aging have been identified. By comparing beta-cells from younger and older zebrafish, here we show that the aging islets exhibit signs of chronic inflammation. These include recruitment of tnfα-expressing macrophages and the activation of NF-kB signaling in beta-cells. Using a transgenic reporter, we show that NF-kB activity is undetectable in juvenile beta-cells, whereas cells from older fish exhibit heterogeneous NF-kB activity. We link this heterogeneity to differences in gene expression and proliferation. Beta-cells with high NF-kB signaling proliferate significantly less compared to their neighbors with low activity. The NF-kB signalinghi cells also exhibit premature upregulation of socs2, an age-related gene that inhibits beta-cell proliferation. Together, our results show that NF-kB activity marks the asynchronous decline in beta-cell proliferation with advancing age.
Collapse
Affiliation(s)
- Sharan Janjuha
- DFG-Center for Regenerative Therapies Dresden, Technische Universität Dresden, Dresden, Germany.,Paul Langerhans Institute Dresden, Helmholtz Zentrum München at the University Hospital, German Center for Diabetes Research (DZD e.V.), Dresden, Germany.,Faculty of Medicine Carl Gustav Carus, Technische Universität Dresden, German Center for Diabetes Reseach (DZD e.V.), Dresden, Germany
| | - Sumeet Pal Singh
- DFG-Center for Regenerative Therapies Dresden, Technische Universität Dresden, Dresden, Germany
| | - Anastasia Tsakmaki
- Diabetes Research Group, School of Life Course Sciences, Faculty of Life Sciences & Medicine, King's College London, London, United Kingdom
| | - S Neda Mousavy Gharavy
- Section of Cell Biology and Functional Genomics, Division of Diabetes, Endocrinology, and Metabolism, Imperial College London, London, United Kingdom.,Consortium for Islet Cell Biology and Diabetes, Department of Medicine, Imperial College London, London, United Kingdom
| | - Priyanka Murawala
- DFG-Center for Regenerative Therapies Dresden, Technische Universität Dresden, Dresden, Germany
| | - Judith Konantz
- DFG-Center for Regenerative Therapies Dresden, Technische Universität Dresden, Dresden, Germany
| | - Sarah Birke
- DFG-Center for Regenerative Therapies Dresden, Technische Universität Dresden, Dresden, Germany
| | - David J Hodson
- Centre for Endocrinology, Diabetes, and Metabolism, University of Birmingham, Edgbaston, United Kingdom.,Institute of Metabolism and Systems Research, University of Birmingham, Edgbaston, United Kingdom
| | - Guy A Rutter
- Section of Cell Biology and Functional Genomics, Division of Diabetes, Endocrinology, and Metabolism, Imperial College London, London, United Kingdom.,Consortium for Islet Cell Biology and Diabetes, Department of Medicine, Imperial College London, London, United Kingdom
| | - Gavin A Bewick
- Diabetes Research Group, School of Life Course Sciences, Faculty of Life Sciences & Medicine, King's College London, London, United Kingdom
| | - Nikolay Ninov
- DFG-Center for Regenerative Therapies Dresden, Technische Universität Dresden, Dresden, Germany.,Paul Langerhans Institute Dresden, Helmholtz Zentrum München at the University Hospital, German Center for Diabetes Research (DZD e.V.), Dresden, Germany.,Faculty of Medicine Carl Gustav Carus, Technische Universität Dresden, German Center for Diabetes Reseach (DZD e.V.), Dresden, Germany
| |
Collapse
|
11
|
Role of the JAK2/STAT3 signaling pathway in the pathogenesis of type 2 diabetes mellitus with macrovascular complications. Oncotarget 2017; 8:96958-96969. [PMID: 29228585 PMCID: PMC5722537 DOI: 10.18632/oncotarget.18555] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2017] [Accepted: 06/04/2017] [Indexed: 01/19/2023] Open
Abstract
This study investigated the role of the JAK2/STAT3/SOCS pathway in type 2 diabetes mellitus (T2DM) and macrovascular complications (DV) (T2DM+DV) conditions. Human umbilical vein endothelial cells (HUVECs) were co-cultured with human monocytes (THP-1) and exposed to peripheral blood sera from 30 T2DM patients, 30 patients with T2DM+DV and 30 healthy controls; the groups were divided into the control, T2DM, DV, T2DM+AG490 and DV+AG490 groups. Chemotaxis of treated HUVECs toward THP-1 cells was assessed using Transwell migration. The mRNA expression of JAK2, STAT3, VEGF and FLT1 was evaluated using RT-PCR, whereas the protein levels of ICAM-1, p-JAK2, JAK2, STAT3, p-STAT3, SOCS1 and SOCS3 were determined using western blotting. p-STAT3 was observed using immunofluorescence. The IL-1β concentrations were assessed by ELISA. AG90 was used as a specific inhibitor of JAK2/STAT3 signaling. The chemotaxis assays revealed a migratory order of DV>DM>control, and AG490 treatment decreased chemotaxis. Additionally, p-STAT3 fluorescence was noticeably increased in the DM group and more so in the DV group. The mRNA expression of JAK2, STAT3, VEGF and FLT1 and the protein levels of ICAM-1, p-JAK2, p-STAT3, SOCS1 and SOCS3 were significantly higher in the T2DM and DV groups than in the control group and in the AG490-treated groups than in the untreated groups. The supernatant concentrations of IL-1β in the DV and T2DM groups were higher than those in the control group, and treatment with AG490 decreased the IL-1β concentration. The JAK2/STAT3/SOCS axis contributes to the development of DV by mediating inflammation associated with vascular endothelial cells and/or monocytes.
Collapse
|
12
|
Volkov P, Bacos K, Ofori JK, Esguerra JLS, Eliasson L, Rönn T, Ling C. Whole-Genome Bisulfite Sequencing of Human Pancreatic Islets Reveals Novel Differentially Methylated Regions in Type 2 Diabetes Pathogenesis. Diabetes 2017; 66:1074-1085. [PMID: 28052964 DOI: 10.2337/db16-0996] [Citation(s) in RCA: 93] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2016] [Accepted: 12/28/2016] [Indexed: 11/13/2022]
Abstract
Current knowledge about the role of epigenetics in type 2 diabetes (T2D) remains limited. Only a few studies have investigated DNA methylation of selected candidate genes or a very small fraction of genomic CpG sites in human pancreatic islets, the tissue of primary pathogenic importance for diabetes. Our aim was to characterize the whole-genome DNA methylation landscape in human pancreatic islets, to identify differentially methylated regions (DMRs) in diabetic islets, and to investigate the function of DMRs in islet biology. Here, we performed whole-genome bisulfite sequencing, which is a comprehensive and unbiased method to study DNA methylation throughout the genome at a single nucleotide resolution, in pancreatic islets from donors with T2D and control subjects without diabetes. We identified 25,820 DMRs in islets from individuals with T2D. These DMRs cover loci with known islet function, e.g., PDX1, TCF7L2, and ADCY5 Importantly, binding sites previously identified by ChIP-seq for islet-specific transcription factors, enhancer regions, and different histone marks were enriched in the T2D-associated DMRs. We also identified 457 genes, including NR4A3, PARK2, PID1, SLC2A2, and SOCS2, that had both DMRs and significant expression changes in T2D islets. To mimic the situation in T2D islets, candidate genes were overexpressed or silenced in cultured β-cells. This resulted in impaired insulin secretion, thereby connecting differential methylation to islet dysfunction. We further explored the islet methylome and found a strong link between methylation levels and histone marks. Additionally, DNA methylation in different genomic regions and of different transcript types (i.e., protein coding, noncoding, and pseudogenes) was associated with islet expression levels. Our study provides a comprehensive picture of the islet DNA methylome in individuals with and without diabetes and highlights the importance of epigenetic dysregulation in pancreatic islets and T2D pathogenesis.
Collapse
Affiliation(s)
- Petr Volkov
- Epigenetics and Diabetes Unit, Department of Clinical Sciences, Lund University Diabetes Centre, Scania University Hospital, Malmö, Sweden
| | - Karl Bacos
- Epigenetics and Diabetes Unit, Department of Clinical Sciences, Lund University Diabetes Centre, Scania University Hospital, Malmö, Sweden
| | - Jones K Ofori
- Islet Cell Exocytosis Unit, Department of Clinical Sciences, Lund University Diabetes Centre, Scania University Hospital, Malmö, Sweden
| | - Jonathan Lou S Esguerra
- Islet Cell Exocytosis Unit, Department of Clinical Sciences, Lund University Diabetes Centre, Scania University Hospital, Malmö, Sweden
| | - Lena Eliasson
- Islet Cell Exocytosis Unit, Department of Clinical Sciences, Lund University Diabetes Centre, Scania University Hospital, Malmö, Sweden
| | - Tina Rönn
- Epigenetics and Diabetes Unit, Department of Clinical Sciences, Lund University Diabetes Centre, Scania University Hospital, Malmö, Sweden
| | - Charlotte Ling
- Epigenetics and Diabetes Unit, Department of Clinical Sciences, Lund University Diabetes Centre, Scania University Hospital, Malmö, Sweden
| |
Collapse
|
13
|
Alkharusi A, Mirecki-Garrido M, Ma Z, Zadjali F, Flores-Morales A, Nyström T, Castrillo A, Bjorklund A, Norstedt G, Fernandez-Pérez L. Suppressor of cytokine signaling 2 (SOCS2) deletion protects against multiple low dose streptozotocin-induced type 1 diabetes in adult male mice. Horm Mol Biol Clin Investig 2017; 26:67-76. [PMID: 26562042 DOI: 10.1515/hmbci-2015-0036] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2015] [Accepted: 10/08/2015] [Indexed: 12/27/2022]
Abstract
BACKGROUND Diabetes type 1 is characterized by the failure of beta cells to produce insulin. Suppressor of cytokine signaling (SOCS) proteins are important regulators of the Janus kinase/signal transducer and activator of transcription (JAK-STAT) pathway. Previous studies have shown that GH can prevent the development of type I diabetes in mice and that SOCS2 deficiency mimics a state of increased GH sensitivity. METHODOLOGY The elevated sensitivity of SOCS2-/- mice to GH and possibly to PRL was the rationale to analyze the effects of multiple low dose streptozotocin (MLDSTZ)-induced diabetes in SOCS2-/- mice. RESULTS We show that 6-month-old SOCS2-/- mice, but not 2-month-old mice, were less sensitive to MLDSTZ-induced diabetes, compared to controls. MLDSTZ treatment induced glucose intolerance in both SOCS2+/+ and SOCS2-/- mice, as shown by glucose tolerance tests, with SOCS2+/+ mice showing a more marked intolerance, compared to SOCS2-/- mice. Furthermore, insulin tolerance tests showed that the SOCS2-/- mice have an improved hypoglycemic response to exogenous insulin, compared to SOCS2+/+ mice. Moreover, in isolated islets, lipotoxic effects on insulin release could partly be overcome by ligands, which bind to GH or PRL receptors. CONCLUSION Knockdown of SOCS2 makes mice less sensitive to MLDSTZ. These results are consistent with the proposal that elimination of SOCS2 in pancreatic islets creates a state of β-cell hypersensitivity to GH/PRL that mimics events in pregnancy, and which is protective against MLDSTZ-induced type I diabetes in mice. SOCS2-dependent control of β-cell survival may be of relevance to islet regeneration and survival in transplantation.
Collapse
|
14
|
Chowdhury AI, Bergsten P. GLP-1 analogue recovers impaired insulin secretion from human islets treated with palmitate via down-regulation of SOCS2. Mol Cell Endocrinol 2017; 439:194-202. [PMID: 27566229 DOI: 10.1016/j.mce.2016.08.034] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2015] [Revised: 08/22/2016] [Accepted: 08/22/2016] [Indexed: 12/31/2022]
Abstract
Elevated circulating palmitate levels have been connected with type 2 diabetes mellitus. GLP-1 has favorable effects on beta-cells function. The aim was to identify mechanisms for decreased GSIS after long-term palmitate exposure and restoration by GLP-1 by analyzing changes in G-protein coupled receptor (GPCR) pathway signaling. Insulin secretory response to 20 mM glucose was attenuated after 7 days in islets exposed to palmitate but inclusion of exendin-4 restored secretion. Palmitate treatment altered genes of several GPCR signaling pathways including inflammatory pathways with up-regulated IL-1B, SOCS1 and SOCS2 transcript levels. Protein level of SOCS2 was also up-regulated by palmitate and accompanied by down-regulation of pAkt(T308), which was restored by exendin-4 treatment. When SOCS2 was knocked down, palmitate-induced down-regulation of IRS-1 and pAkt(T308) was prevented and GSIS, proinsulin to insulin ratio and apoptosis was restored. Long-term palmitate treatment up-regulates SOCS2 and reduces PI3K activity, thereby impairing GSIS. GLP-1 reverts the palmitate-induced effects.
Collapse
Affiliation(s)
- Azazul Islam Chowdhury
- Department of Medical Cell Biology, Uppsala University, Box 571, SE-75123, Uppsala, Sweden.
| | - Peter Bergsten
- Department of Medical Cell Biology, Uppsala University, Box 571, SE-75123, Uppsala, Sweden
| |
Collapse
|
15
|
Ye C, Driver JP. Suppressors of Cytokine Signaling in Sickness and in Health of Pancreatic β-Cells. Front Immunol 2016; 7:169. [PMID: 27242781 PMCID: PMC4860527 DOI: 10.3389/fimmu.2016.00169] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2016] [Accepted: 04/18/2016] [Indexed: 01/07/2023] Open
Abstract
Suppressors of cytokine signaling (SOCS) are a family of eight proteins that negatively regulate Janus kinase and signal transducers and activators of transcription signaling in cells that utilize this pathway to respond to extracellular stimuli. SOCS are best known for attenuating cytokine signaling in the immune system. However, they are also expressed in many other cell types, including pancreatic β-cells, where there is considerable interest in harnessing SOCS molecules to prevent cytokine-mediated apoptosis during diabetes and allogeneic transplantation. Apart from their potential as therapeutic targets, SOCS molecules play a central role for regulating important functions in β-cells, including growth, glucose sensing, and insulin secretion. This review will discuss SOCS proteins as central regulators for diverse cellular processes important for normal β-cell function as well as their protective anti-apoptotic effects during β-cell stress.
Collapse
Affiliation(s)
- Cheng Ye
- Department of Animal Sciences, University of Florida , Gainesville, FL , USA
| | - John P Driver
- Department of Animal Sciences, University of Florida , Gainesville, FL , USA
| |
Collapse
|
16
|
Liu CZ, He AY, Chen LQ, Limbu SM, Wang YW, Zhang ML, Du ZY. Molecular characterization and immune response to lipopolysaccharide (LPS) of the suppressor of cytokine signaling (SOCS)-1, 2 and 3 genes in Nile tilapia (Oreochromis niloticus). FISH & SHELLFISH IMMUNOLOGY 2016; 50:160-167. [PMID: 26820103 DOI: 10.1016/j.fsi.2016.01.027] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2015] [Revised: 01/21/2016] [Accepted: 01/22/2016] [Indexed: 06/05/2023]
Abstract
Suppressor of cytokine signaling (SOCS) proteins are inverse feedback regulators of cytokine and hormone signaling mediated by the Janus kinase/signal transducer and activator of transcription (JAK/STAT) signaling pathway that are involved in immunity, growth and development of organisms. In the present study, three SOCS genes, SOCS-1, SOCS-2 and SOCS-3, were identified in an economically important fish, Nile tilapia (Oreochromis niloticus) referred to as NtSOCS-1, NtSOCS-2 and NtSOCS-3. Multiple alignments showed that, the three SOCS molecules share highly conserved functional domains, including the SRC homology 2 (SH2) domain, the extended SH2 subdomain (ESS) and the SOCS box with others vertebrate counterparts. Phylogenetic analysis indicated that NtSOCS-1, 2 and 3 belong to the SOCS type II subfamily. Whereas NtSOCS-1 and 3 showed close evolutionary relationship with Perciformes, NtSOCS-2 was more related to Salmoniformes. Tissue specific expression results showed that, NtSOCS-1, 2 and 3 were constitutively expressed in all nine tissues examined. NtSOCS-1 and 3 were highly expressed in immune-related tissues, such as gills, foregut and head kidney. However, NtSOCS-2 was superlatively expressed in liver, brain and heart. In vivo, NtSOCS-1 and 3 mRNA levels were up-regulated after lipopolysaccharide (LPS) challenge while NtSOCS-2 was down-regulated. In vitro, LPS stimulation increased NtSOCS-3 mRNA expression, however it inhibited the transcription of NtSOCS-1 and 2. Collectively, our findings suggest that, the NtSOCS-1 and 3 might play significant role(s) in innate immune response, while NtSOCS-2 may be more involved in metabolic regulation.
Collapse
Affiliation(s)
- Cai-Zhi Liu
- Laboratory of Aquaculture Nutrition and Environmental Health (LANEH), School of Life Sciences, East China Normal University, Shanghai, PR China
| | - An-Yuan He
- Laboratory of Aquaculture Nutrition and Environmental Health (LANEH), School of Life Sciences, East China Normal University, Shanghai, PR China
| | - Li-Qiao Chen
- Laboratory of Aquaculture Nutrition and Environmental Health (LANEH), School of Life Sciences, East China Normal University, Shanghai, PR China.
| | - Samwel Mchele Limbu
- Laboratory of Aquaculture Nutrition and Environmental Health (LANEH), School of Life Sciences, East China Normal University, Shanghai, PR China; Department of Aquatic Sciences and Fisheries Technologies, University of Dar es Salaam, Dar es Salaam, Tanzania
| | - Ya-Wen Wang
- Laboratory of Aquaculture Nutrition and Environmental Health (LANEH), School of Life Sciences, East China Normal University, Shanghai, PR China
| | - Mei-Ling Zhang
- Laboratory of Aquaculture Nutrition and Environmental Health (LANEH), School of Life Sciences, East China Normal University, Shanghai, PR China
| | - Zhen-Yu Du
- Laboratory of Aquaculture Nutrition and Environmental Health (LANEH), School of Life Sciences, East China Normal University, Shanghai, PR China.
| |
Collapse
|
17
|
DiStefano JK, Kingsley C, Wood GC, Chu X, Argyropoulos G, Still CD, Doné SC, Legendre C, Tembe W, Gerhard GS. Genome-wide analysis of hepatic lipid content in extreme obesity. Acta Diabetol 2015; 52:373-82. [PMID: 25246029 PMCID: PMC4370808 DOI: 10.1007/s00592-014-0654-3] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2014] [Accepted: 09/08/2014] [Indexed: 12/11/2022]
Abstract
AIMS Individuals with type 2 diabetes have an increased risk of developing non-alcoholic fatty liver disease (NAFLD), and NAFLD patients are also at greater risk for developing type 2 diabetes. Although the relationship between type 2 diabetes and NAFLD is highly interconnected, the pathogenic mechanisms linking the two diseases are poorly understood. The goal of this study was to identify genetic determinants of hepatic lipid accumulation through association analysis using histological phenotypes in obese individuals. METHODS Using the Illumina HumanOmniExpress BeadChip assay, we genotyped 2,300 individuals on whom liver biopsy data were available. RESULTS We analyzed total bilirubin levels, which are linked to fatty liver in severe obesity, and observed the strongest evidence for association with rs4148325 in UGT1A (P < 5.0 × 10(-93)), replicating previous findings. We assessed hepatic fat level and found strong evidence for association with rs4823173, rs2896019, and rs2281135, all located in PNPLA3 and rs10401969 in SUGP1. Analysis of liver transcript levels of 20 genes residing at the SUGP1/NCAN locus identified a 1.6-fold change in the expression of the LPAR2 gene in fatty liver. We also observed suggestive evidence for association between low-grade fat accumulation and rs10859525 and rs1294908, located upstream from SOCS2 and RAMP3, respectively. SOCS2 was differentially expressed between fatty and normal liver. CONCLUSIONS These results replicate findings for several hepatic phenotypes in the setting of extreme obesity and implicate new loci that may play a role in the pathophysiology of hepatic lipid accumulation.
Collapse
Affiliation(s)
- Johanna K. DiStefano
- Diabetes, Cardiovascular and Metabolic Diseases Division, Translational Genomics Research Institute, 445 Fifth Street, Phoenix, AZ 85004
- Corresponding author: Please send all correspondence to: Johanna K. DiStefano, Ph.D., Translational Genomics Research Institute, 445 North Fifth Street, Phoenix, AZ 85004, Tel: 602.343.8812, FAX: 602.343.8844,
| | - Christopher Kingsley
- Diabetes, Cardiovascular and Metabolic Diseases Division, Translational Genomics Research Institute, 445 Fifth Street, Phoenix, AZ 85004
| | - G. Craig Wood
- Geisinger Obesity Institute, Geisinger Clinic, 100 N. Academy Ave., Danville, PA 17822
| | - Xin Chu
- Geisinger Obesity Institute, Geisinger Clinic, 100 N. Academy Ave., Danville, PA 17822
| | - George Argyropoulos
- Geisinger Obesity Institute, Geisinger Clinic, 100 N. Academy Ave., Danville, PA 17822
| | - Christopher D. Still
- Geisinger Obesity Institute, Geisinger Clinic, 100 N. Academy Ave., Danville, PA 17822
| | - Stefania Cotta Doné
- Diabetes, Cardiovascular and Metabolic Diseases Division, Translational Genomics Research Institute, 445 Fifth Street, Phoenix, AZ 85004
| | - Christophe Legendre
- Diabetes, Cardiovascular and Metabolic Diseases Division, Translational Genomics Research Institute, 445 Fifth Street, Phoenix, AZ 85004
| | - Waibhav Tembe
- Diabetes, Cardiovascular and Metabolic Diseases Division, Translational Genomics Research Institute, 445 Fifth Street, Phoenix, AZ 85004
| | - Glenn S. Gerhard
- Geisinger Obesity Institute, Geisinger Clinic, 100 N. Academy Ave., Danville, PA 17822
- Department of Biochemistry and Molecular Biology, Institute for Personalized Medicine, Department of Pathology and Laboratory Medicine, Pennsylvania State University College of Medicine, Room C5750, 500 University Drive, MC - H171, Hershey, PA 17033
| |
Collapse
|
18
|
Melnik BC, John SM, Schmitz G. Milk consumption during pregnancy increases birth weight, a risk factor for the development of diseases of civilization. J Transl Med 2015; 13:13. [PMID: 25592553 PMCID: PMC4302093 DOI: 10.1186/s12967-014-0377-9] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2014] [Accepted: 12/29/2014] [Indexed: 02/06/2023] Open
Abstract
Antenatal dietary lifestyle intervention and nutrition during pregnancy and early postnatal life are important for appropriate lifelong metabolic programming. Epidemiological evidence underlines the crucial role of increased birth weight as a risk factor for the development of chronic diseases of civilization such as obesity, diabetes and cancer. Obstetricians and general practitioners usually recommend milk consumption during pregnancy as a nutrient enriched in valuable proteins and calcium for bone growth. However, milk is not just a simple nutrient, but has been recognized to function as an endocrine signaling system promoting anabolism and postnatal growth by activating the nutrient-sensitive kinase mTORC1. Moreover, pasteurized cow’s milk transfers biologically active exosomal microRNAs into the systemic circulation of the milk consumer apparently affecting more than 11 000 human genes including the mTORC1-signaling pathway. This review provides literature evidence and evidence derived from translational research that milk consumption during pregnancy increases gestational, placental, fetal and birth weight. Increased birth weight is a risk factor for the development of diseases of civilization thus involving key disciplines of medicine. With regard to the presented evidence we suggest that dietary recommendations promoting milk consumption during pregnancy have to be re-evaluated.
Collapse
Affiliation(s)
- Bodo C Melnik
- Department of Dermatology, Environmental Medicine and Health Theory, University of Osnabrück, Sedanstrasse 115, D-49090, Osnabrück, Germany.
| | - Swen Malte John
- Department of Dermatology, Environmental Medicine and Health Theory, University of Osnabrück, Sedanstrasse 115, D-49090, Osnabrück, Germany.
| | - Gerd Schmitz
- Institute of Clinical Chemistry and Laboratory Medicine, University Clinics of Regensburg, Regensburg, Germany.
| |
Collapse
|
19
|
Feng X, Tang H, Leng J, Jiang Q. Suppressors of cytokine signaling (SOCS) and type 2 diabetes. Mol Biol Rep 2014; 41:2265-74. [PMID: 24414000 DOI: 10.1007/s11033-014-3079-8] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2013] [Accepted: 01/04/2014] [Indexed: 12/11/2022]
Abstract
The suppressors of cytokine signaling (SOCS) proteins are originally identified as negative regulators of cytokine-activated Janus kinase/signal transducers and activators of transcription signaling pathway, but increasing evidence reveals that SOCS proteins play an important role in the development of type 2 diabetes involving regulation of the insulin signaling and pancreatic β-cell function, and that SOCS are promising to be the targets for the treatment of type 2 diabetes. In this review, we focus on the emerging role for SOCS and the potential drugs targeting SOCS for type 2 diabetes.
Collapse
Affiliation(s)
- Xiaotao Feng
- Guangxi Scientific Experimental Center of Traditional Chinese Medicine, Guangxi University of Chinese Medicine, Nanning, 530001, People's Republic of China
| | | | | | | |
Collapse
|
20
|
SOCS and diabetes-ups and downs of a turbulent relationship. Cell Biochem Funct 2013; 31:181-95. [DOI: 10.1002/cbf.2940] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2012] [Revised: 11/10/2012] [Accepted: 11/16/2012] [Indexed: 11/07/2022]
|
21
|
Robbins RD, Tersey SA, Ogihara T, Gupta D, Farb TB, Ficorilli J, Bokvist K, Maier B, Mirmira RG. Inhibition of deoxyhypusine synthase enhances islet {beta} cell function and survival in the setting of endoplasmic reticulum stress and type 2 diabetes. J Biol Chem 2010; 285:39943-52. [PMID: 20956533 PMCID: PMC3000976 DOI: 10.1074/jbc.m110.170142] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2010] [Revised: 10/04/2010] [Indexed: 01/09/2023] Open
Abstract
Islet β cell dysfunction resulting from inflammation, ER stress, and oxidative stress is a key determinant in the progression from insulin resistance to type 2 diabetes mellitus. It was recently shown that the enzyme deoxyhypusine synthase (DHS) promotes early cytokine-induced inflammation in the β cell. DHS catalyzes the conversion of lysine to hypusine, an amino acid that is unique to the translational elongation factor eIF5A. Here, we sought to determine whether DHS activity contributes to β cell dysfunction in models of type 2 diabetes in mice and β cell lines. A 2-week treatment of obese diabetic C57BLKS/J-db/db mice with the DHS inhibitor GC7 resulted in improved glucose tolerance, increased insulin release, and enhanced β cell mass. Thapsigargin treatment of β cells in vitro induces a picture of ER stress and apoptosis similar to that seen in db/db mice; in this setting, DHS inhibition led to a block in CHOP (CAAT/enhancer binding protein homologous protein) production despite >30-fold activation of Chop gene transcription. Blockage of CHOP translation resulted in reduction of downstream caspase-3 cleavage and near-complete protection of cells from apoptotic death. DHS inhibition appeared to prevent the cytoplasmic co-localization of eIF5A with the ER, possibly precluding the participation of eIF5A in translational elongation at ER-based ribosomes. We conclude that hypusination by DHS is required for the ongoing production of proteins, particularly CHOP, in response to ER stress in the β cell.
Collapse
Affiliation(s)
- Reiesha D. Robbins
- From the Department of Pharmacology, University of Virginia, Charlottesville, Virginia 22904
| | - Sarah A. Tersey
- the Department of Pediatrics and the Herman B. Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, Indiana 46202
| | - Takeshi Ogihara
- the Department of Pediatrics and the Herman B. Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, Indiana 46202
| | - Dhananjay Gupta
- the Department of Pediatrics and the Herman B. Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, Indiana 46202
| | - Thomas B. Farb
- the Lilly Research Labs, Eli Lilly and Company, Indianapolis, Indiana 46285, and
| | - James Ficorilli
- the Lilly Research Labs, Eli Lilly and Company, Indianapolis, Indiana 46285, and
| | - Krister Bokvist
- the Lilly Research Labs, Eli Lilly and Company, Indianapolis, Indiana 46285, and
| | - Bernhard Maier
- the Department of Pediatrics and the Herman B. Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, Indiana 46202
| | - Raghavendra G. Mirmira
- the Department of Pediatrics and the Herman B. Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, Indiana 46202
- the Departments of Medicine and of Cellular and Integrative Physiology, Indiana University School of Medicine, Indianapolis, Indiana 46202
| |
Collapse
|