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Endoplasmic reticulum stress inhibition ameliorated WFS1 expression alterations and reduced pancreatic islets' insulin secretion induced by high-fat diet in rats. Sci Rep 2023; 13:1860. [PMID: 36725880 PMCID: PMC9892558 DOI: 10.1038/s41598-023-28329-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Accepted: 01/17/2023] [Indexed: 02/03/2023] Open
Abstract
Endoplasmic reticulum (ER) stress is involved in the development of glucose homeostasis impairment. When ER stress occurs, the unfolded protein response (UPR) is activated to cope with it. One of the UPR components is WFS1 (Wolfram syndrome 1), which plays important roles in ER homeostasis and pancreatic islets glucose-stimulated insulin secretion (GSIS). Accordingly and considering that feeding high-fat food has a major contribution in metabolic disorders, this study aimed to investigate the possible involvement of pancreatic ER stress in glucose metabolism impairment induced by feeding high-fat diet (HFD) in male rats. After weaning, the rats were divided into six groups, and fed on normal diet and HFD for 20 weeks, then 4-phenyl butyric acid (4-PBA, an ER stress inhibitor) was administered. Subsequently, in all groups, after performing glucose tolerance test, the animals were dissected and their pancreases were removed to extract ER, islets isolation and assessment of GSIS. Moreover, the pancreatic ER stress [binding of immunoglobulin protein (BIP) and enhancer-binding protein homologous protein (CHOP)] and oxidative stress [malondialdehyde (MDA), glutathione (GSH) and catalase] biomarkers as well as WFS1 expression level were evaluated. HFD decreased pancreatic WFS1 protein and GSH levels, and enhanced pancreatic catalase activity, MDA content, BIP and CHOP protein and mRNA levels as well as Wfs1 mRNA amount. Accordingly, it increased BIP, CHOP and WFS1 protein levels in the extracted ER of pancreas. In addition, the HFD caused glucose intolerance, and decreased the islets' GSIS and insulin content. However, 4-PBA administration restored the alterations. It seems that, HFD consumption through inducing pancreatic ER stress, altered WFS1 expression levels, reduced the islets' GSIS and insulin content and finally impaired glucose homeostasis.
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Werdermann M, Berger I, Scriba LD, Santambrogio A, Schlinkert P, Brendel H, Morawietz H, Schedl A, Peitzsch M, King AJF, Andoniadou CL, Bornstein SR, Steenblock C. Insulin and obesity transform hypothalamic-pituitary-adrenal axis stemness and function in a hyperactive state. Mol Metab 2020; 43:101112. [PMID: 33157254 PMCID: PMC7691554 DOI: 10.1016/j.molmet.2020.101112] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 10/22/2020] [Accepted: 11/03/2020] [Indexed: 12/16/2022] Open
Abstract
Objective Metabolic diseases are an increasing problem in society with the brain-metabolic axis as a master regulator of the human body for sustaining homeostasis under metabolic stress. However, metabolic inflammation and disease will trigger sustained activation of the hypothalamic-pituitary-adrenal axis. In this study, we investigated the role of metabolic stress on progenitor cells in the hypothalamic-pituitary-adrenal axis. Methods In vitro, we applied insulin and leptin to murine progenitor cells isolated from the pituitary and adrenal cortex and examined the role of these hormones on proliferation and differentiation. In vivo, we investigated two different mouse models of metabolic disease, obesity in leptin-deficient ob/ob mice and obesity achieved via feeding with a high-fat diet. Results Insulin was shown to lead to enhanced proliferation and differentiation of both pituitary and adrenocortical progenitors. No alterations in the progenitors were noted in our chronic metabolic stress models. However, hyperactivation of the hypothalamic-pituitary-adrenal axis was observed and the expression of the appetite-regulating genes Npy and Agrp changed in both the hypothalamus and adrenal. Conclusions It is well-known that chronic stress and stress hormones such as glucocorticoids can induce metabolic changes including obesity and diabetes. In this article, we show for the first time that this might be based on an early sensitization of stem cells of the hypothalamic-pituitary-adrenal axis. Thus, pituitary and adrenal progenitor cells exposed to high levels of insulin are metabolically primed to a hyper-functional state leading to enhanced hormone production. Likewise, obese animals exhibit a hyperactive hypothalamic-pituitary-adrenal axis leading to adrenal hyperplasia. This might explain how stress in early life can increase the risk for developing metabolic syndrome in adulthood. Insulin enhances proliferation and differentiation of adrenocortical and pituitary progenitors. Obesity leads to hyperactivation and priming of the HPA axis. Obesity leads to overexpression of appetite-regulating genes in the hypothalamus. Obesity leads to a decrease in the expression of appetite-regulating genes in the adrenal gland.
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Affiliation(s)
- Martin Werdermann
- Department of Internal Medicine III, University Hospital Carl Gustav Carus, Dresden University of Technology, Fetscherstraße 74, Dresden, 01307, Germany.
| | - Ilona Berger
- Department of Internal Medicine III, University Hospital Carl Gustav Carus, Dresden University of Technology, Fetscherstraße 74, Dresden, 01307, Germany.
| | - Laura D Scriba
- Department of Internal Medicine III, University Hospital Carl Gustav Carus, Dresden University of Technology, Fetscherstraße 74, Dresden, 01307, Germany.
| | - Alice Santambrogio
- Department of Internal Medicine III, University Hospital Carl Gustav Carus, Dresden University of Technology, Fetscherstraße 74, Dresden, 01307, Germany; Centre for Craniofacial and Regenerative Biology, King's College London, Guy's Hospital, London, SE1 9RT, UK.
| | - Pia Schlinkert
- Department of Pharmacology and Toxicology, University Hospital Carl Gustav Carus, Dresden University of Technology, Fetscherstraße 74, Dresden, 01307, Germany.
| | - Heike Brendel
- Division of Vascular Endothelium and Microcirculation, Department of Medicine III, University Hospital Carl Gustav Carus Dresden, Dresden University of Technology, Fetscherstraße 74, Dresden, 01307, Germany.
| | - Henning Morawietz
- Division of Vascular Endothelium and Microcirculation, Department of Medicine III, University Hospital Carl Gustav Carus Dresden, Dresden University of Technology, Fetscherstraße 74, Dresden, 01307, Germany.
| | - Andreas Schedl
- University of Côte d'Azur, INSERM, CNRS, iBV, Parc Valrose, Nice, 06108, France.
| | - Mirko Peitzsch
- Institute of Clinical Chemistry and Laboratory Medicine, University Hospital Carl Gustav Carus, Dresden University of Technology, Fetscherstraße 74, Dresden, 01307, Germany.
| | - Aileen J F King
- Department of Diabetes, School of Life Course Sciences, King's College London, Great Maze Pond, London, SE1 9RT, UK.
| | - Cynthia L Andoniadou
- Department of Internal Medicine III, University Hospital Carl Gustav Carus, Dresden University of Technology, Fetscherstraße 74, Dresden, 01307, Germany; Centre for Craniofacial and Regenerative Biology, King's College London, Guy's Hospital, London, SE1 9RT, UK.
| | - Stefan R Bornstein
- Department of Internal Medicine III, University Hospital Carl Gustav Carus, Dresden University of Technology, Fetscherstraße 74, Dresden, 01307, Germany; Diabetes and Nutritional Sciences Division, King's College London, Guy's Campus, London, SE1 1UL, UK.
| | - Charlotte Steenblock
- Department of Internal Medicine III, University Hospital Carl Gustav Carus, Dresden University of Technology, Fetscherstraße 74, Dresden, 01307, Germany.
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Cui X, Hu D, Wang C, Chen S, Zhao Z, Xu X, Yao Y, Liu T. A surface-enhanced Raman scattering-based probe method for detecting chromogranin A in adrenal tumors. Nanomedicine (Lond) 2020; 15:397-407. [PMID: 31983270 DOI: 10.2217/nnm-2019-0436] [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: 12/29/2022] Open
Abstract
Aim: We aim to demonstrate that a surface-enhanced Raman spectroscopy (SERS) probe can be effectively used for protein detection in adrenal tumors. Materials & methods: The SERS probe method, which uses Au@Ag core-shell nanoparticles conjugated with a CgA antibody and a SERS reporter, was applied to detect CgA in adrenal tumors. Results: Our data reveal that the results of the CgA-SERS probe method were almost identical to those of western blot and superior to those of traditional immunohistochemistry. Conclusion: This study offers a novel strategy to detect CgA in adrenal tumors and provides more reliable protein test results than traditional immunohistochemistry analysis for adrenal pathologists, meaning that it might be a better clinical reference for the diagnosis of pheochromocytoma.
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Affiliation(s)
- Xiaoyu Cui
- College of Medicine & Biological Information Engineering, Northeastern University, No.500 Wisdom Street, Shenyang, 110169, PR China.,Key Laboratory of Data Analytics & Optimization for Smart Industry, Northeastern University, No.500 Wisdom Street, Shenyang, 110169, PR China
| | - Dayu Hu
- College of Medicine & Biological Information Engineering, Northeastern University, No.500 Wisdom Street, Shenyang, 110169, PR China
| | - Chengyuan Wang
- Department of Urology, The First Hospital of China Medical University, No.155 Nanjingbei Street, Shenyang, Liaoning, 110001, PR China
| | - Shuo Chen
- College of Medicine & Biological Information Engineering, Northeastern University, No.500 Wisdom Street, Shenyang, 110169, PR China
| | - Zeyin Zhao
- College of Medicine & Biological Information Engineering, Northeastern University, No.500 Wisdom Street, Shenyang, 110169, PR China
| | - Xiaosong Xu
- College of Medicine & Biological Information Engineering, Northeastern University, No.500 Wisdom Street, Shenyang, 110169, PR China
| | - Yudong Yao
- College of Medicine & Biological Information Engineering, Northeastern University, No.500 Wisdom Street, Shenyang, 110169, PR China
| | - Tao Liu
- Department of Urology, The First Hospital of China Medical University, No.155 Nanjingbei Street, Shenyang, Liaoning, 110001, PR China
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