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Neelam PB, Sharma A, Sharma V. Sarcopenia and frailty in inflammatory bowel disease: Emerging concepts and evidence. JGH Open 2024; 8:e13033. [PMID: 38283070 PMCID: PMC10821747 DOI: 10.1002/jgh3.13033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 01/01/2024] [Accepted: 01/05/2024] [Indexed: 01/30/2024]
Abstract
Sarcopenia is a condition marked by progressive loss of skeletal muscle mass and function while frailty is a multidimensional concept characterized by diminished physiological reserve and increased vulnerability to stressors. Both of these were previously considered as related to aging and shown to impact the quality of life and carry prognostic significance. Emerging data show that both sarcopenia and frailty carry similar relevance in chronic illness. Inflammatory bowel disease (IBD) is characterized by chronic inflammation of the gastrointestinal tract and malnourishment, both of which contribute to the development of sarcopenia by increasing protein breakdown and reducing protein synthesis. The coexistence of frailty further compounds the clinical complexity of IBD patients. Published evidence suggests a bidirectional association with IBD contributing to muscle wasting, while the resultant sarcopenia and frailty could further exacerbate the disease course. Sarcopenia and frailty are independently associated with adverse outcomes, including hospitalizations, increased surgical interventions, and surgical complications. As therapeutic strategies for IBD evolve, understanding the nuanced relationship between inflammatory bowel disease, sarcopenia, and frailty is crucial for devising holistic management. Comprehensive care should encompass not only disease-modifying therapies but also interventions targeting frailty and sarcopenia, as they have been shown to have a significant impact not only on the disease course but also on the quality of life. Future research could focus on further elucidating underlying mechanisms, simple screening strategies, and developing targeted interventions to improve the overall quality of life for individuals grappling with the complex interplay of IBD, sarcopenia, and frailty.
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Affiliation(s)
- Pardhu B Neelam
- Department of GastroenterologyPostgraduate Institute of Medical Education and ResearchChandigarhIndia
| | - Alka Sharma
- Department of MedicineDr. BR Ambedkar Institute of Medical SciencesMohaliIndia
| | - Vishal Sharma
- Department of GastroenterologyPostgraduate Institute of Medical Education and ResearchChandigarhIndia
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2
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Wang H, Wang J, Geng C, Wang C, Gu R, Zhu Z. A variant rs6214 within IGF-1 confers risk for ulcerative colitis in Chinese Han populations. Funct Integr Genomics 2022; 23:1. [PMID: 36520299 DOI: 10.1007/s10142-022-00921-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 11/15/2022] [Accepted: 11/22/2022] [Indexed: 12/16/2022]
Abstract
Insulin growth factor-1 (IGF-1) has been found to correlate with various diseases such as cancer and cardiovascular diseases including ulcerative colitis (UC). The present study aimed to investigate the plausible association of rs6214 (C > T) within IGF-1 and UC susceptibility in Chinese Han populations. A total of 977 UC patients and 1029 healthy controls were enrolled, and rs6214 was genotyped with PCR and direct sequencing on the ABI 3730XL DNA analyzer platform. Logistic regression analysis was applied for the correlation of rs6214 and UC susceptibility via calculation of odds ratio (OR) with a 95% confidence interval (95% CI) adjusted for age and sex under different genetic models. The difference of clinical parameters between genotypes was measured by one-way analysis of variance (ANOVA). Additional functional assays were conducted to establish the probable relationship. The results indicated that the T allele of rs6214 showed roughly 37% greater risk for UC risk in the additive model (OR = 1.37, 95% CI = 1.21-1.55, P < 0.000001) when compared with C allele carriers, and the pattern was similar in other three genetic models. Further stratified analysis suggested that the association was particularly noteworthy in UC patients with extensive colitis and severe condition. Moreover, the blood level of IGF-1 was downregulated in UC patients, and the mRNA level was lower in T allele carriers in rectal tissues of UC cases. Additional luciferase assay demonstrated that rs6214 regulates IGF-1 expression via promoting miR-2053. Collectively, rs6214 increased UC susceptibility and suppresses IGF-1 expression by enhancing miR-2053 binding. The current findings provided evidence that rs6214 is a promising biomarker for UC prediction and prognosis.
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Affiliation(s)
- Huiping Wang
- Xuzhou Engineering Research Center of Medical Genetics and Transformation, Laboratory of Genetic Foundation and Clinical Application, Department of Genetics, School of Life Sciences, Xuzhou Medical University, Xuzhou, 221004, China
| | - Jin Wang
- Laboratory of Experimental and Clinical Pathology, Departments of Pathology, School of Basic Medical Sciences, Xuzhou Medical University, Xuzhou, 221004, China
| | - Chunsong Geng
- Department of Laboratory, Suzhou Kowloon Hospital Shanghai Jiao Tong University School of Medicine, Suzhou, 215000, China
| | - Cong Wang
- Laboratory of Experimental and Clinical Pathology, Departments of Pathology, School of Basic Medical Sciences, Xuzhou Medical University, Xuzhou, 221004, China
| | - Rongrong Gu
- School of Life Sciences, Xuzhou Medical University, Xuzhou, 221004, China
| | - Zhansheng Zhu
- Laboratory of Experimental and Clinical Pathology, Departments of Pathology, School of Basic Medical Sciences, Xuzhou Medical University, Xuzhou, 221004, China.
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3
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Alpha-1 Antitrypsin Inhibits Tumorigenesis and Progression of Colitis-Associated Colon Cancer through Suppression of Inflammatory Neutrophil-Activated Serine Proteases and IGFBP-3 Proteolysis. Int J Mol Sci 2022; 23:ijms232213737. [PMID: 36430216 PMCID: PMC9698049 DOI: 10.3390/ijms232213737] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 10/31/2022] [Accepted: 11/04/2022] [Indexed: 11/11/2022] Open
Abstract
Colitis-associated colon cancer (CAC) accompanies the massive infiltration of neutrophils during tumorigenesis and progression of CAC. Depletion of neutrophils in circulation results in significant inhibition of tumor incidence in CAC. However, the underlying mechanisms are largely unclear. In this study, we provide evidence for the crucial involvement of inflammatory neutrophil-activated serine proteases (NSPs) on the dysregulation of the anti-inflammatory and antitumor IGFBP-3/IGFBP-3R signaling axis in CAC using a chronic AOM/DSS mouse model. We also provide preclinical evidence for α1-antitrypsin (AAT) as a preventive and as a therapeutic for CAC. AAT administration not only prevented colitis-associated tumorigenesis but also inhibited established CAC. AOM/DSS treatment results in the significant activation of NSPs, leading to CAC through increased pro-inflammatory cytokines and decreased anti-inflammatory and antitumor IGFBP-3. Collectively, these data suggest that the NSPs proteolyze IGFBP-3, whereas AAT inhibits chronic colonic inflammation-induced NSP activity and subsequently suppresses IGFBP-3 proteolysis. Therefore, the anti-inflammatory and antitumor functions of the IGFBP-3/IGFBP-3R axis are restored. AAT mimicking small peptides also showed their inhibitory effects on NSP-induced IGFBP-3 proteolysis. These results suggest that targeting the NSP-IGFBP-3/IGFBP-3R axis using NSP inhibitors such as AAT and the AAT mimics and IGFBP-3R agonists could lead to novel approaches for the prevention and treatment of CAC.
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Jasso GJ, Jaiswal A, Varma M, Laszewski T, Grauel A, Omar A, Silva N, Dranoff G, Porter JA, Mansfield K, Cremasco V, Regev A, Xavier RJ, Graham DB. Colon stroma mediates an inflammation-driven fibroblastic response controlling matrix remodeling and healing. PLoS Biol 2022; 20:e3001532. [PMID: 35085231 PMCID: PMC8824371 DOI: 10.1371/journal.pbio.3001532] [Citation(s) in RCA: 40] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Revised: 02/08/2022] [Accepted: 01/07/2022] [Indexed: 12/22/2022] Open
Abstract
Chronic inflammation is often associated with the development of tissue fibrosis, but how mesenchymal cell responses dictate pathological fibrosis versus resolution and healing remains unclear. Defining stromal heterogeneity and identifying molecular circuits driving extracellular matrix deposition and remodeling stands to illuminate the relationship between inflammation, fibrosis, and healing. We performed single-cell RNA-sequencing of colon-derived stromal cells and identified distinct classes of fibroblasts with gene signatures that are differentially regulated by chronic inflammation, including IL-11-producing inflammatory fibroblasts. We further identify a transcriptional program associated with trans-differentiation of mucosa-associated fibroblasts and define a functional gene signature associated with matrix deposition and remodeling in the inflamed colon. Our analysis supports a critical role for the metalloprotease Adamdec1 at the interface between tissue remodeling and healing during colitis, demonstrating its requirement for colon epithelial integrity. These findings provide mechanistic insight into how inflammation perturbs stromal cell behaviors to drive fibroblastic responses controlling mucosal matrix remodeling and healing.
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Affiliation(s)
- Guadalupe J. Jasso
- Broad Institute of MIT and Harvard, Cambridge, Massachusetts, United States of America
- Harvard Medical School, Boston, Massachusetts, United States of America
| | - Alok Jaiswal
- Broad Institute of MIT and Harvard, Cambridge, Massachusetts, United States of America
| | - Mukund Varma
- Broad Institute of MIT and Harvard, Cambridge, Massachusetts, United States of America
| | - Tyler Laszewski
- Novartis Institutes for BioMedical Research, Cambridge, Massachusetts, United States of America
| | - Angelo Grauel
- Novartis Institutes for BioMedical Research, Cambridge, Massachusetts, United States of America
| | - Abdifatah Omar
- Center for Computational and Integrative Biology, Massachusetts General Hospital, Boston, Massachusetts, United States of America
| | - Nilsa Silva
- Novartis Institutes for BioMedical Research, Cambridge, Massachusetts, United States of America
| | - Glenn Dranoff
- Novartis Institutes for BioMedical Research, Cambridge, Massachusetts, United States of America
| | - Jeffrey A. Porter
- Novartis Institutes for BioMedical Research, Cambridge, Massachusetts, United States of America
| | - Keith Mansfield
- Novartis Institutes for BioMedical Research, Cambridge, Massachusetts, United States of America
| | - Viviana Cremasco
- Novartis Institutes for BioMedical Research, Cambridge, Massachusetts, United States of America
| | - Aviv Regev
- Broad Institute of MIT and Harvard, Cambridge, Massachusetts, United States of America
- Howard Hughes Medical Institute and David H. Koch Institute for Integrative Cancer Research, Department of Biology, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America
| | - Ramnik J. Xavier
- Broad Institute of MIT and Harvard, Cambridge, Massachusetts, United States of America
- Harvard Medical School, Boston, Massachusetts, United States of America
- Center for Computational and Integrative Biology, Massachusetts General Hospital, Boston, Massachusetts, United States of America
- Center for the Study of Inflammatory Bowel Disease, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, United States of America
- Center for Microbiome Informatics and Therapeutics, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America
- Klarman Cell Observatory, Broad Institute of MIT and Harvard, Cambridge, Massachusetts, United States of America
- * E-mail: (RJX); (DBG)
| | - Daniel B. Graham
- Broad Institute of MIT and Harvard, Cambridge, Massachusetts, United States of America
- Harvard Medical School, Boston, Massachusetts, United States of America
- Center for Computational and Integrative Biology, Massachusetts General Hospital, Boston, Massachusetts, United States of America
- Center for the Study of Inflammatory Bowel Disease, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, United States of America
- Center for Microbiome Informatics and Therapeutics, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America
- * E-mail: (RJX); (DBG)
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Guijarro LG, Cano-Martínez D, Toledo-Lobo MV, Salinas PS, Chaparro M, Gómez-Lahoz AM, Zoullas S, Rodríguez-Torres R, Román ID, Monasor LS, Ruiz-Llorente L, Del Carmen Boyano-Adánez M, Guerra I, Iborra M, Cabriada JL, Bujanda L, Taxonera C, García-Sánchez V, Marín-Jiménez I, Acosta MBD, Vera I, Martín-Arranz MD, Mesonero F, Sempere L, Gomollón F, Hinojosa J, Alvarez-Mon M, Gisbert JP, Ortega MA, Hernández-Breijo B, On Behalf Of The Predicrohn Study Group From Geteccu. Relationship between IGF-1 and body weight in inflammatory bowel diseases: Cellular and molecular mechanisms involved. Biomed Pharmacother 2021; 144:112239. [PMID: 34601192 DOI: 10.1016/j.biopha.2021.112239] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 09/20/2021] [Accepted: 09/21/2021] [Indexed: 10/20/2022] Open
Abstract
Inflammatory bowel diseases (IBD), represented by ulcerative colitis (UC) and Crohn's disease (CD), are characterized by chronic inflammation of the gastrointestinal tract, what leads to diarrhea, malnutrition, and weight loss. Depression of the growth hormone-insulin-like growth factor-1 axis (GH-IGF-1 axis) could be responsible of these symptoms. We demonstrate that long-term treatment (54 weeks) of adult CD patients with adalimumab (ADA) results in a decrease in serum IGF-1 without changes in serum IGF-1 binding protein (IGF1BP4). These results prompted us to conduct a preclinical study to test the efficiency of IGF-1 in the medication for experimental colitis. IGF-1 treatment of rats with DSS-induced colitis has a beneficial effect on the following circulating biochemical parameters: glucose, albumin, and total protein levels. In this experimental group we also observed healthy maintenance of colon size, body weight, and lean mass in comparison with the DSS-only group. Histological analysis revealed restoration of the mucosal barrier with the IGF-1 treatment, which was characterized by healthy quantities of mucin production, structural maintenance of adherers junctions (AJs), recuperation of E-cadherin and β-catenin levels and decrease in infiltrating immune cells and in metalloproteinase-2 levels. The experimentally induced colitis caused activation of apoptosis markers, including cleaved caspase 3, caspase 8, and PARP and decreases cell-cycle checkpoint activators including phosphorylated Rb, cyclin E, and E2F1. The IGF-1 treatment inhibited cyclin E depletion and partially protects PARP levels. The beneficial effects of IGF-1 in experimental colitis could be explained by a re-sensitization of the IGF-1/IRS-1/AKT cascade to exogenous IGF-1. Given these results, we postulate that IGF-1 treatment of IBD patients could prove to be successful in reducing disease pathology.
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Affiliation(s)
- Luis G Guijarro
- Department of System Biology, University of Alcalá, Alcalá de Henares, Spain; Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Spain; Ramón y Cajal Institute of Sanitary Research (IRYCIS), 28034 Madrid, Spain
| | - David Cano-Martínez
- Department of System Biology, University of Alcalá, Alcalá de Henares, Spain
| | - M Val Toledo-Lobo
- Ramón y Cajal Institute of Sanitary Research (IRYCIS), 28034 Madrid, Spain; Department of Biomedicine and Biotechnology, University of Alcalá, Alcalá de Henares, Spain
| | | | - María Chaparro
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Spain; Gastroenterology Unit Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria Princesa (IIS-IP), Universidad Autónoma de Madrid, Spain
| | - Ana M Gómez-Lahoz
- Department of Medicine and Medical Specialities, Faculty of Medicine and Health Sciences, University of Alcalá, Alcalá de Henares, Spain
| | - Sofía Zoullas
- Department of System Biology, University of Alcalá, Alcalá de Henares, Spain
| | - Rosa Rodríguez-Torres
- Department of Surgery, Medical and Social Sciences, Faculty of Medicine and Health Sciences, University of Alcalá, Alcala de Henares, Spain
| | - Irene D Román
- Department of System Biology, University of Alcalá, Alcalá de Henares, Spain
| | | | - Lidia Ruiz-Llorente
- Department of System Biology, University of Alcalá, Alcalá de Henares, Spain
| | | | - Iván Guerra
- Gastroenterology Department, Hospital Universitario de Fuenlabrada & Instituto de Investigación Hospital Universitario La Paz (IdiPaz), Spain
| | - Marisa Iborra
- Gastroenterology Unit, Hospital Universitario de La Fe (CIBEREHD), Valencia, Spain
| | - José Luis Cabriada
- Gastroenterology Unit, Hospital Universitario de Galdakano, Vizcaya, Spain
| | - Luis Bujanda
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Spain; Department of Gastroenterology. Biodonostia Health Research Institute. Universidad del País Vasco (UPV/EHU). San Sebastián, Spain
| | - Carlos Taxonera
- Gastroenterology Unit, Hospital Universitario Clínico San Carlos and IdISSC, Madrid, Spain
| | - Valle García-Sánchez
- Gastroenterology Unit, Hospital Universitario Reina Sofía/Universidad de Córdoba, Spain
| | - Ignacio Marín-Jiménez
- Gastroenterology Unit, Hospital Universitario Gregorio Marañón e IiSGM, Madrid, Spain
| | | | - Isabel Vera
- Gastroenterology Unit, Hospital Universitario Puerta de Hierro Majadahonda, Madrid, Spain
| | | | - Francisco Mesonero
- Gastroenterology Unit, Hospital Universitario Ramón y Cajal, Madrid, Spain
| | - Laura Sempere
- Gastroenterology Unit, Hospital Universitario Alicante, Alicante, Spain
| | - Fernando Gomollón
- Gastroenterology Unit, Hospital Clínico Universitario, Lozano Blesa, IIS Aragón, Zaragoza, Spain
| | - Joaquín Hinojosa
- Gastroenterology Unit, Hospital Universitario Manises, Valencia, Spain
| | - Melchor Alvarez-Mon
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Spain; Department of Medicine and Medical Specialities, Faculty of Medicine and Health Sciences, University of Alcalá, Alcalá de Henares, Spain; Immune System Diseases-Rheumatology, Oncology Service an Internal Medicine, University Hospital Príncipe de Asturias, Alcalá de Henares, Spain
| | - Javier P Gisbert
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Spain; Gastroenterology Unit Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria Princesa (IIS-IP), Universidad Autónoma de Madrid, Spain.
| | - Miguel A Ortega
- Ramón y Cajal Institute of Sanitary Research (IRYCIS), 28034 Madrid, Spain; Department of Biomedicine and Biotechnology, University of Alcalá, Alcalá de Henares, Spain.
| | - Borja Hernández-Breijo
- Department of System Biology, University of Alcalá, Alcalá de Henares, Spain; Immuno-Rheumatology Research Group. IdiPaz. Hospital Universitario La Paz, Madrid, Spain
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Ashraf DC, Jankovic I, El-Nachef N, Winn BJ, Kim GE, Kersten RC. New-Onset of Inflammatory Bowel Disease in a Patient Treated With Teprotumumab for Thyroid Associated Ophthalmopathy. Ophthalmic Plast Reconstr Surg 2021; 37:e160-e164. [PMID: 33710035 DOI: 10.1097/iop.0000000000001943] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A patient with thyroid-associated ophthalmopathy was treated with teprotumumab and developed symptoms concerning for inflammatory bowel disease after her sixth infusion. Colonoscopy was performed, and mucosal biopsies identified evidence of active colitis consistent with a diagnosis of ulcerative colitis. Despite treatment with budesonide and mesalamine, the patient continued to be symptomatic one and a half months after cessation of teprotumumab and required infliximab to achieve good control of her inflammatory bowel disease. This case represents the first report of new-onset inflammatory bowel disease arising during treatment with teprotumumab.
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Affiliation(s)
- Davin C Ashraf
- Department of Ophthalmology, University of California, San Francisco, San Francisco
| | - Ivana Jankovic
- Division of Endocrinology, Department of Medicine, Stanford University School of Medicine, Stanford
| | - Najwa El-Nachef
- Department of Gastroenterology, University of California, San Francisco, San Francisco
| | - Bryan J Winn
- Department of Ophthalmology, University of California, San Francisco, San Francisco
| | - Grace E Kim
- Department of Pathology, University of California, San Francisco, San Francisco, California, U.S.A
| | - Robert C Kersten
- Department of Ophthalmology, University of California, San Francisco, San Francisco
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Sheng X, Sun X, Li F, Wang J, Ma J. Linear growth failure induced by systemic inflammation inhibiting IGF-1/IGFBP axis in rats with asymptomatic colitis. BMC Gastroenterol 2019; 19:96. [PMID: 31221091 PMCID: PMC6585116 DOI: 10.1186/s12876-019-1023-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Accepted: 06/13/2019] [Indexed: 01/17/2023] Open
Abstract
Background Children in poor areas show significant growth retardation that does not improve with an adequate supply of energy and nutrients, which may be related to asymptomatic intestinal infection caused by poor sanitation. Our objective was to explore the mechanism of intestinal inflammation inhibiting growth in the setting of asymptomatic colitis. Methods Forty-eight 3-week-old Wistar rats were randomly divided into three groups: the control group, colitis group (with asymptomatic colitis induced by 2.5% trinitrobenzenesulphonic acid) and pair-fed group (daily food intake matched to the pair in the colitis group). The linear growth was assessed, and the plasma levels of hormone and systemic cytokines were detected and compared by independent two-sample t-test or one-way ANOVA among groups. Results At d5, the increases in the body length of the control, colitis and pair-fed groups were 1.65 ± 0.34 cm, 1.10 ± 0.30 cm and 1.38 ± 0.26 cm, respectively, and the increase in the body length in the colitis group was significantly less than that in the control group (P < 0.05). There were significant differences in the levels of hormone and cytokines among three groups (P < 0.05). Compared with the control group, rats in the colitis group exhibited linear growth failure, as well as higher expression of calprotectin, tumour necrosis factor-α, interleukin-6 and insulin-like growth factor binding protein 2, lower insulin-like growth factor-1 and insulin-like growth factor binding protein 3, and lower expression of nuclear factor kappa B in hepatocytes. Conclusions In addition to undernutrition, the systemic inflammatory response caused by asymptomatic colitis may inhibit the linear growth of rats by its influence on the insulin-like growth factor/insulin-like growth factor binding protein axis. Electronic supplementary material The online version of this article (10.1186/s12876-019-1023-z) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Xiaoyang Sheng
- Department of Children and Adolescents Health Care, Xin Hua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Institute for Pediatric Research, MOE-Shanghai Key Laboratory of Children's Environmental Health, No.1665, Kongjiang Road, Yangpu District, Shanghai, 200092, China
| | - Xueqing Sun
- Department of Biochemistry and Molecular Cell Biology, Shanghai Jiao Tong University School of Medicine, 280 S. South Chongqing Road, Shanghai, 200025, China
| | - Feng Li
- Department of Children and Adolescents Health Care, Xin Hua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Institute for Pediatric Research, MOE-Shanghai Key Laboratory of Children's Environmental Health, No.1665, Kongjiang Road, Yangpu District, Shanghai, 200092, China
| | - Junli Wang
- Department of Children and Adolescents Health Care, Xin Hua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Institute for Pediatric Research, MOE-Shanghai Key Laboratory of Children's Environmental Health, No.1665, Kongjiang Road, Yangpu District, Shanghai, 200092, China
| | - Jingqiu Ma
- Shanghai Institute for Pediatric Research, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Key Laboratory of Pediatric Gastroenterology and Nutrition, No.1665, Kongjiang Road, Yangpu District, Shanghai, 200092, China.
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8
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Hjortebjerg R, Thomsen KL, Agnholt J, Frystyk J. The IGF system in patients with inflammatory bowel disease treated with prednisolone or infliximab: potential role of the stanniocalcin-2 / PAPP-A / IGFBP-4 axis. BMC Gastroenterol 2019; 19:83. [PMID: 31159802 PMCID: PMC6547608 DOI: 10.1186/s12876-019-1000-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Accepted: 05/23/2019] [Indexed: 01/09/2023] Open
Abstract
Background Patients with inflammatory bowel disease (IBD) present with reduced serum insulin-like growth factor I (IGF-I). Anti-inflammatory treatment with prednisolone or infliximab ameliorates symptoms and increases circulating IGF-I, but prednisolone induces catabolism, whereas infliximab may promote protein synthesis. Recently, stanniocalcin-2 (STC2) was discovered as a novel inhibitor of the enzyme pregnancy-associated plasma protein-A (PAPP-A), which modulates IGF-I activity. PAPP-A can cleave IGF binding protein-4 (IGFBP-4), upon which IGF-I is liberated. We hypothesized that prednisolone and infliximab exert different effects on levels of STC2, PAPP-A, and IGFBP-4, thereby explaining the distinct metabolic effects of prednisolone and infliximab. Methods Thirty-eight patients with active IBD treated with either prednisolone (n = 17) or infliximab (n = 21) were examined before and after 7 days of treatment. Circulating levels of IGF-I, IGF-II, IGFBP-3, PAPP-A, and STC2 were measured by immunoassays. Intact IGFBP-4 and two IGFBP-4 fragments were determined by a novel immunoassay. Bioactive IGF was assessed by cell-based IGF receptor activation assay. Concentrations of IGFBP-4, PAPP-A, and STC2 on day 0 and 7 were compared to healthy control subjects. Results Following seven days of prednisolone treatment, total and bioactive IGF-I were increased (p < 0.001 and p < 0.05, respectively). Upon infliximab treatment, total IGF-I levels were augmented (p < 0.05), yet IGF bioactivity remained unaltered. Intact IGFBP-4 and the two IGFBP-4 fragments generated upon cleavage by PAPP-A were all decreased following treatment with either prednisolone or infliximab (all p < 0.05). PAPP-A levels were only increased by infliximab (p = 0.005), whereas the inhibitor STC2 did not respond to any of the treatments. Conclusion IGF-I and IGFBP-4 concentrations were markedly altered in patients with IBD and near-normalized with disease remission following treatment with prednisolone or infliximab. Thus, IGFBP-4 may modulate IGF bioavailability in IBD. The effect of immunosuppression did not appear to extend beyond the regulation of IGF and IGFBP-4, as neither PAPP-A nor STC2 were discernibly affected. Trial registration ClinicalTrials.gov: NCT00955123. Date of registration: August 7, 2009 (retrospectively registered).
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Affiliation(s)
- Rikke Hjortebjerg
- Medical Research Laboratory, Department of Clinical Medicine, Faculty of Health, Aarhus University, Aarhus, Denmark. .,The Danish Diabetes Academy, Odense, Denmark.
| | - Karen L Thomsen
- Department of Hepatology and Gastroenterology, Aarhus University Hospital, Aarhus, Denmark
| | - Jørgen Agnholt
- Department of Hepatology and Gastroenterology, Aarhus University Hospital, Aarhus, Denmark
| | - Jan Frystyk
- Medical Research Laboratory, Department of Clinical Medicine, Faculty of Health, Aarhus University, Aarhus, Denmark.,Department of Clinical Research, Faculty of Health, University of Southern Denmark, Odense, Denmark.,Department of Endocrinology, Odense University Hospital, Odense, Denmark
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9
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Kim SC, Hwang PH. Up-regulation of IGF Binding Protein-3 Inhibits Colonic Inflammatory Response. J Korean Med Sci 2018; 33:e110. [PMID: 29573252 PMCID: PMC5865057 DOI: 10.3346/jkms.2018.33.e110] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Accepted: 01/02/2018] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND The aggravating factors still remained unclear in inflammatory bowel disease (IBD). Despite many different therapeutic approaches, many patients do not respond to the therapy. The anti-inflammatory effect of insulin-like growth factor-binding protein-3 (IGFBP-3) was suggested because of its capability of nuclear factor-κB (NF-κB) signaling inhibition. Therefore, we hypothesized that the up-regulation of IGFBP-3 would inhibit an inflammatory process. METHODS Lipopolysaccharides (LPS) treated intestinal epithelial cell 6 (IEC-6) and dextran sodium sulfate (DSS) induced colitis mice were used as colitis models. Exogenous IGFBP-3 expression was accomplished using the adenoviral vector system expressing IGFBP-3 (Ad/IGFBP-3). The inflammatory responses and relevant cellular responses in IEC-6 cells influenced by IGFBP-3 expression were evaluated by western blotting, 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay, and reactive oxygen species (ROS) measurement. The severity of colitis was evaluated with the colon tissues of DSS-induced mouse model. RESULTS We found that the IGFBP-3 expression reduced the production of inflammatory cytokines (cyclooxygenase-2, interleukin-1β, tumor necrosis factor-α) and ROS formation. IGFBP-3 expression also induced cell viability and inhibited NF-κB activation. In line with this data, the severity of DSS-induced mouse colitis was greatly ameliorated by the treatment of IGFBP-3 expressing adenoviral particles characterized with less weight loss and preserved colon length compared with the mice treated with DSS alone. The histopathology of the colon showed the reducing signs of colitis in Ad/IGFBP-3 treated DSS-mice group. CONCLUSION Therefore, our data suggest that Ad/IGFBP-3 up-regulation reduces colonic inflammatory response as a novel therapeutic protocol for IBD.
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Affiliation(s)
- Soon Chul Kim
- Department of Pediatrics, Chonbuk National University Hospital, Chonbuk National University Medical School, Jeonju, Korea
- Research Institute of Clinical Medicine-Biomedical Research Institute, Chonbuk National University Hospital, Jeonju, Korea
| | - Pyoung Han Hwang
- Department of Pediatrics, Chonbuk National University Hospital, Chonbuk National University Medical School, Jeonju, Korea
- Research Institute of Clinical Medicine-Biomedical Research Institute, Chonbuk National University Hospital, Jeonju, Korea.
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Ramshanker N, Aagaard M, Hjortebjerg R, Voss TS, Møller N, Jørgensen JOL, Jessen N, Bjerring P, Magnusson NE, Bjerre M, Oxvig C, Frystyk J. Effects of Prednisolone on Serum and Tissue Fluid IGF-I Receptor Activation and Post-Receptor Signaling in Humans. J Clin Endocrinol Metab 2017; 102:4031-4040. [PMID: 28945869 DOI: 10.1210/jc.2017-00696] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2017] [Accepted: 09/08/2017] [Indexed: 02/13/2023]
Abstract
CONTEXT Short-term glucocorticoid exposure increases serum insulinlike growth factor I (IGF-I) concentrations but antagonizes IGF-I tissue signaling. The underlying mechanisms remain unknown. OBJECTIVE To identify at which levels glucocorticoid inhibits IGF-I signaling. DESIGN AND METHODS Nineteen healthy males received prednisolone (37.5 mg/d) and placebo for 5 days in a randomized, double-blinded, placebo-controlled crossover study. Serum was collected on days 1, 3, and 5, and abdominal skin suction blister fluid (SBF; ~interstitial fluid) was taken on day 5 (n = 9) together with muscle biopsy specimens (n = 19). The ability of serum and SBF to activate the IGF-I receptor (IGF-IR) (bioactive IGF) and its downstream signaling proteins was assessed using IGF-IR-transfected cells. RESULTS Prednisolone increased IGF-I concentrations and bioactive IGF in serum (P ≤ 0.001) but not in SBF, which, compared with serum, contained less bioactive IGF (~28%) after prednisolone (P < 0.05). This observation was unexplained by SBF concentrations of IGFs and IGF-binding proteins (IGFBPs) 1 to 4. However, following prednisolone treatment, SBF contained less IGFBP-4 fragments (P < 0.05) generated by pregnancy-associated plasma protein A (PAPP-A). Concomitantly, prednisolone increased SBF levels of stanniocalcin 2 (STC2) (P = 0.02) compared with serum. STC2 blocks PAPP-A from cleaving IGFBP-4. Finally, prednisolone suppressed post-IGF-IR signaling pathways at the level of insulin receptor substrate 1 (P < 0.05) but did not change skeletal muscle IGF-IR, IGF-I, or STC2 messenger RNA. CONCLUSION Prednisolone increased IGF-I concentrations and IGF bioactivity in serum but not in tissue fluid. The latter may relate to a STC2-mediated inhibition of PAPP-A in tissue fluids. Furthermore, prednisolone induced post-IGF-IR resistance. Thus, glucocorticoid may exert distinct, compartment-specific effects on IGF action.
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Affiliation(s)
- Nilani Ramshanker
- Medical Research Laboratory, Department of Clinical Medicine, Faculty of Health, Aarhus University, DK-8000 Aarhus C, Denmark
| | - Maiken Aagaard
- Medical Research Laboratory, Department of Clinical Medicine, Faculty of Health, Aarhus University, DK-8000 Aarhus C, Denmark
| | - Rikke Hjortebjerg
- Medical Research Laboratory, Department of Clinical Medicine, Faculty of Health, Aarhus University, DK-8000 Aarhus C, Denmark
- Danish Diabetes Academy, DK-5000 Odense, Denmark
| | - Thomas Schmidt Voss
- Medical Research Laboratory, Department of Clinical Medicine, Faculty of Health, Aarhus University, DK-8000 Aarhus C, Denmark
| | - Niels Møller
- Medical Research Laboratory, Department of Clinical Medicine, Faculty of Health, Aarhus University, DK-8000 Aarhus C, Denmark
- Department of Endocrinology and Internal Medicine, Aarhus University Hospital, DK-8000 Aarhus C, Denmark
| | - Jens Otto Lunde Jørgensen
- Medical Research Laboratory, Department of Clinical Medicine, Faculty of Health, Aarhus University, DK-8000 Aarhus C, Denmark
- Department of Endocrinology and Internal Medicine, Aarhus University Hospital, DK-8000 Aarhus C, Denmark
| | - Niels Jessen
- Research Laboratory for Biochemical Pathology, Department of Clinical Medicine, Faculty of Health, Aarhus University, DK-8000 Aarhus C, Denmark
| | - Peter Bjerring
- Mølholm Research, Mølholm Private Hospital A/S, DK-7100 Vejle, Denmark
| | - Nils Erik Magnusson
- Medical Research Laboratory, Department of Clinical Medicine, Faculty of Health, Aarhus University, DK-8000 Aarhus C, Denmark
| | - Mette Bjerre
- Medical Research Laboratory, Department of Clinical Medicine, Faculty of Health, Aarhus University, DK-8000 Aarhus C, Denmark
| | - Claus Oxvig
- Department of Molecular Biology and Genetics, Faculty of Science & Technology, Aarhus University, DK-8000 Aarhus C, Denmark
| | - Jan Frystyk
- Medical Research Laboratory, Department of Clinical Medicine, Faculty of Health, Aarhus University, DK-8000 Aarhus C, Denmark
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Soendergaard C, Kvist PH, Thygesen P, Reslow M, Nielsen OH, Kopchick JJ, Holm TL. Characterization of Growth Hormone Resistance in Experimental and Ulcerative Colitis. Int J Mol Sci 2017; 18:ijms18102046. [PMID: 28946616 PMCID: PMC5666728 DOI: 10.3390/ijms18102046] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2017] [Revised: 09/14/2017] [Accepted: 09/20/2017] [Indexed: 12/26/2022] Open
Abstract
Growth hormone (GH) resistance may develop as a consequence of inflammation during conditions such as inflammatory bowel disease, encompassing ulcerative colitis (UC). However, the specific role of the GH–insulin growth factor (IGF)-1-axis and/or the functional consequences of GH resistance in this condition are unclear. In situ hybridization targeting the GH receptor (GHR) and relevant transcriptional analyses were performed in patients with UC and in IL-10 knock-out mice with piroxicam accelerated colitis (PAC). Using cultured primary epithelial cells, the effects of inflammation on the molecular mechanisms governing GH resistance was verified. Also, the therapeutic potential of GH on mucosal healing was tested in the PAC model. Inflammation induced intestinal GH resistance in UC and experimental colitis by down-regulating GHR expression and up-regulating suppressor of cytokine signalling (SOCS) proteins. These effects are driven by pro-inflammatory mediators (tumor necrosis factor (TNF)-α, interleukin (IL)-1β and IL-6) as confirmed using primary epithelial cells. Treatment of experimental colitis with GH increased IGF-1 and body weight of the mice, but had no effects on colonic inflammation or mucosal healing. The high transcriptional similarity between UC and experimental colitis accentuates the formation of intestinal GH resistance during inflammation. Inflammation-induced GH resistance not only impairs general growth but induces a state of local resistance, which potentially impairs the actions of GH on mucosal healing during colitis when using long-acting GH therapy.
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Affiliation(s)
- Christoffer Soendergaard
- Novo Nordisk A/S, Haemophilia Research, Maaloev 2760, Denmark.
- Department of Gastroenterology, Herlev Hospital, Herlev 2730, Denmark.
| | | | - Peter Thygesen
- Novo Nordisk A/S, Haemophilia Research, Maaloev 2760, Denmark.
| | - Mats Reslow
- Novo Nordisk A/S, Haemophilia Research, Maaloev 2760, Denmark.
- Pila Pharma AB, 20512 Malmö, Sweden.
| | | | - John Joseph Kopchick
- Edison Biotechnology Institute & Department of Biomedical Sciences, HCOM, Ohio University, Athens, OH 45701, USA.
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12
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Growth Hormone Resistance-Special Focus on Inflammatory Bowel Disease. Int J Mol Sci 2017; 18:ijms18051019. [PMID: 28486400 PMCID: PMC5454932 DOI: 10.3390/ijms18051019] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2017] [Revised: 05/01/2017] [Accepted: 05/03/2017] [Indexed: 12/25/2022] Open
Abstract
Growth hormone (GH) plays major anabolic and catabolic roles in the body and is important for regulating several aspects of growth. During an inflammatory process, cells may develop a state of GH resistance during which their response to GH stimulation is limited. In this review, we will emphasize specific mechanisms governing the formation of GH resistance in the active phase of inflammatory bowel disease. The specific molecular effects mediated through individual inflammatory mediators and processes will be highlighted to provide an overview of the transcriptional, translational and post-translational inflammation-mediated impacts on the GH receptor (GHR) along with the impacts on GH-induced intracellular signaling. We also will review GH’s effects on mucosal healing and immune cells in the context of experimental colitis, human inflammatory bowel disease and in patients with short bowel syndrome.
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13
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Heier CR, Fiorillo AA, Chaisson E, Gordish-Dressman H, Hathout Y, Damsker JM, Hoffman EP, Conklin LS. Identification of Pathway-Specific Serum Biomarkers of Response to Glucocorticoid and Infliximab Treatment in Children with Inflammatory Bowel Disease. Clin Transl Gastroenterol 2016; 7:e192. [PMID: 27628422 PMCID: PMC5288595 DOI: 10.1038/ctg.2016.49] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2016] [Accepted: 07/26/2016] [Indexed: 12/14/2022] Open
Abstract
OBJECTIVE Serum biomarkers may serve to predict early response to therapy, identify relapse, and facilitate drug development in inflammatory bowel disease (IBD). Biomarkers are particularly important in children, in whom achieving early remission and minimizing procedures are especially beneficial. METHODS We profiled protein and micro RNA (miRNA) in serum from patients pre- and post-therapy, to identify molecular markers of pharmacodynamic effect. Serum was obtained from children with IBD before and after treatment with either corticosteroids (prednisone; n=12) or anti-tumor necrosis factor-α biologic (infliximab; n=7). Over 1,100 serum proteins were assayed using aptamer-based SOMAscan proteomics, and 22 miRNAs analyzed by quantitative real time PCR. Concordance of longitudinal changes between the groups was used to identify markers responsive to treatment. Bioinformatic analysis was used to build insight into mechanisms of changes in response to treatment. RESULTS We identified 18 proteins and three miRNAs responsive to both prednisone and infliximab. Eight markers that decreased are associated with inflammation and have gene promoters regulated by nuclear factor (NF)-κB. Several that increased are associated with resolving inflammation and tissue damage. We also identified six markers that appear to be steroid-specific, three of which have glucocorticoid receptor binding elements in their promoter region. CONCLUSIONS Serum markers regulated by the inflammatory transcription factor NF-κB are potential candidates for pharmacodynamic biomarkers that, if correlated with later outcomes like endoscopic or histologic healing, could be used to monitor treatment, optimize dosing, and enhance drug development. The pharmacodynamic biomarkers identified here hold potential to improve both clinical care and drug development. Further studies are warranted to investigate these markers as early predictors of response, or possibly surrogate outcomes.
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Affiliation(s)
- Christopher R Heier
- Research Center for Genetic Medicine, Children's National Health System, Washington, District of Columbia, USA
| | - Alyson A Fiorillo
- Research Center for Genetic Medicine, Children's National Health System, Washington, District of Columbia, USA
| | - Ellen Chaisson
- Division of Gastroenterology, Hepatology, and Nutrition, Children's National Health System, Washington, DC, USA
| | - Heather Gordish-Dressman
- Research Center for Genetic Medicine, Children's National Health System, Washington, District of Columbia, USA.,Department of Integrative Systems Biology, George Washington University School of Medicine and Health Sciences, Washington, DC, USA
| | - Yetrib Hathout
- Research Center for Genetic Medicine, Children's National Health System, Washington, District of Columbia, USA.,Department of Integrative Systems Biology, George Washington University School of Medicine and Health Sciences, Washington, DC, USA
| | - Jesse M Damsker
- Research Center for Genetic Medicine, Children's National Health System, Washington, District of Columbia, USA.,ReveraGen BioPharma, Rockville, MD, USA
| | - Eric P Hoffman
- Research Center for Genetic Medicine, Children's National Health System, Washington, District of Columbia, USA.,Department of Integrative Systems Biology, George Washington University School of Medicine and Health Sciences, Washington, DC, USA.,ReveraGen BioPharma, Rockville, MD, USA
| | - Laurie S Conklin
- Research Center for Genetic Medicine, Children's National Health System, Washington, District of Columbia, USA.,Division of Gastroenterology, Hepatology, and Nutrition, Children's National Health System, Washington, DC, USA
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14
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Chen T, Zheng F, Tao J, Tan S, Zeng L, Peng X, Wu B. Insulin-Like Growth Factor-1 Contributes to Mucosal Repair by β-Arrestin2-Mediated Extracellular Signal-Related Kinase Signaling in Experimental Colitis. THE AMERICAN JOURNAL OF PATHOLOGY 2016; 185:2441-53. [PMID: 26362717 DOI: 10.1016/j.ajpath.2015.05.020] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2015] [Revised: 05/19/2015] [Accepted: 05/28/2015] [Indexed: 12/12/2022]
Abstract
Insulin-like growth factor-1 (IGF-1) possesses the ability to attenuate intestinal damage and promote mucosal repair of colitis. β-Arrestins, as the scaffolding proteins of G protein-coupled receptors or non-G protein-coupled receptors signaling, can be involved in IGF-1-mediated signaling pathways. However, the interaction of IGF-1 and β-arrestin2 in the mucosal repair of experimental colitis remains unexplored. Ulcerative colitis was induced in β-arrestin2 wild-type mice and β-arrestin2 knockout littermates by using 3% dextran sulfate sodium for 5 days, followed by regular water consumption for 1, 2, 3, and 4 weeks to analyze the mucosal repair from experimental colitis. Disease activity index and histologic score analyses were performed. Apoptosis and proliferation were assessed by terminal deoxynucleotidyl transferase-mediated dUTP nick-end labeling and Ki-67 staining, respectively. The expressions of β-arrestin2, phospho (p)-IGF-1R, and p-extracellular signal-regulated kinase (ERK)1/2 were examined. Furthermore, β-arrestin2 was overexpressed or altered in HCT116 cells by transfection before IGF-1 treatment in vitro. IGF-1 and β-arrestin2 expression was up-regulated in the repairing phase of experimental colitis. Targeted deletion of β-arrestin2 delayed the repair of colitis by inhibiting cell proliferation without affecting the levels of IGF-1 and p-IGF-1R. The β-arrestin2/ERK signaling pathway was involved in IGF-1-mediated mucosal repair through promoting epithelial cell and goblet cell regeneration from experimental colitis. These results indicate that IGF-1 contributes to the mucosal repair by β-arrestin2-mediated ERK signaling in experimental colitis.
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Affiliation(s)
- Tingting Chen
- Department of Gastroenterology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Fengping Zheng
- Department of Gastroenterology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Jin Tao
- Department of Gastroenterology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Siwei Tan
- Department of Gastroenterology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Lixian Zeng
- Department of Gastroenterology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Xiaojie Peng
- Department of Gastroenterology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Bin Wu
- Department of Gastroenterology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China.
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15
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Rieder F. The gut microbiome in intestinal fibrosis: environmental protector or provocateur? Sci Transl Med 2014; 5:190ps10. [PMID: 23785034 DOI: 10.1126/scitranslmed.3004731] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
In individuals with inflammatory bowel diseases, intestinal fibrosis is a serious clinical complication with no specific therapies. Patients develop bowel fistulae and strictures that usually require surgery and often reoccur. The main driver of gut fibrogenesis is believed to be chronic inflammation, which leads to mesenchymal cell recruitment and activation. Recent findings suggest that the environment--in particular, the microbiome--plays a critical role in this process.
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Affiliation(s)
- Florian Rieder
- Department of Gastroenterology and Hepatology, Digestive Disease Institute, Cleveland Clinic Foundation, Cleveland, OH 44195, USA.
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16
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Prednisolone but not infliximab aggravates the upregulated hepatic nitrogen elimination in patients with active inflammatory bowel disease. Inflamm Bowel Dis 2014; 20:7-13. [PMID: 24280878 DOI: 10.1097/01.mib.0000437496.07181.4c] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
BACKGROUND Catabolism and weight loss are serious problems in patients with active inflammatory bowel disease (IBD). The body nitrogen (N) depletion is partly related to increased hepatic capacity for the elimination of N through urea synthesis. This is probably caused by the inflammation per se, and the treatment with prednisolone may aggravate the problem, whereas the effect of biological therapy is unknown. Therefore, we examined the effects of prednisolone or infliximab on the regulation of urea synthesis in patients with active IBD. METHODS Urea synthesis was quantified by the functional hepatic nitrogen clearance (FHNC), i.e., the slope of the linear relationship between the urea nitrogen synthesis rate and the blood α-amino nitrogen concentration during alanine infusion. Thirty-seven patients with active IBD treated with either prednisolone or infliximab were examined before and after 7 days of treatment. RESULTS At baseline, the FHNC was similar in the 2 treatment groups (36 L/h). After 7 days, prednisolone increased the FHNC by 40% (55 L/h) (P = 0.03), whereas infliximab tended to reduce the FHNC by 15% (30 L/h) (P = 0.09). The changes in the FHNC differed significantly between the 2 treatment groups (P < 0.01). CONCLUSIONS Prednisolone treatment further upregulated urea synthesis, which increases the hepatic loss of nitrogen and promotes body catabolism. In contrast, infliximab treatment caused no such aggravation and likely reduced the N loss. These results may argue in favor of infliximab therapy for IBD and add to the pathophysiological understanding of the interplay between inflammation, catabolism, and anti-inflammatory treatment.
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Adali G, Yorulmaz E, Ozkanli S, Ulasoglu C, Bayraktar B, Orhun A, Colak Y, Tuncer I. Serum concentrations of insulin-like growth factor-binding protein 5 in Crohn’s disease. World J Gastroenterol 2013; 19:9049-9056. [PMID: 24379630 PMCID: PMC3870558 DOI: 10.3748/wjg.v19.i47.9049] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2013] [Revised: 09/01/2013] [Accepted: 09/17/2013] [Indexed: 02/06/2023] Open
Abstract
AIM: To investigate serum insulin-like growth factor-binding protein 5 (IGFBP-5) levels and intestinal IGFBP-5 expression in patients with Crohn’s disease (CD).
METHODS: We analyzed the serum concentrations and intestinal expression of IGFBP-5 in 42 patients with CD, of whom 26 had endoscopically or radiologically proven stricture formation. Nine of the 42 patients had active disease, with a Crohn’s disease activity index > 150. Serum IGFBP-5 levels were analyzed in 20 healthy controls matched by sex and age to the CD patients. Serum IGFBP-5 was measured using an enzyme-linked immunosorbent assay. Intestinal tissue was obtained from patients through endoscopic biopsies. IGFBP-5 expression was detected using immunohistochemistry and was scored semiquantitatively.
RESULTS: The median serum IGFBP-5 concentrations of CD patients were significantly lower compared with healthy controls [median 7.2 (IQR: 5.5-11.3) ng/mL vs 11.3 (8.0-44.6) ng/mL, P < 0.001]. There was no significant difference between median serum IGFBP-5 levels in CD patients with or without stricture formation [6.9 (5.5-11.3) ng/mL vs 7.8 (5.3-10.1) ng/mL, P = 0.815]. The serum IGFBP-5 levels were not significantly different between patients with active disease and inactive disease [7.2 (6.5-7.6) ng/mL vs 7.2 (5.5-11.3) ng/mL, P = 0.890]. However, a significant correlation was observed between serum IGFBP-5 levels and platelet count (PLT) (r = 0.319, P = 0.0395). No significant correlation was found between tissue IGFBP-5 immunohistochemical staining intensity scores and serum IGFBP-5 levels. No significant difference was found when comparing the serum IGFBP-5 levels among the patients with different tissue IGFBP-5 staining scores (absent/very weak, weak, moderate or strong). There was a significant correlation between tissue IGFBP-5 staining scores and white blood cell count (r = 0.391, P = 0.01) and PLT (r = 0.356, P = 0.021).
CONCLUSION: Our results indicate that serum IGFBP-5 concentrations were lower in CD patients compared to healthy controls regardless of disease activity or the presence of stricture formation.
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Bilen MA, Kim J, Wang H, Tu SM. Cixutumumab-Associated Pancolitis in a Patient With Prostate Cancer. Clin Genitourin Cancer 2013; 11:207-10. [DOI: 10.1016/j.clgc.2012.09.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2012] [Revised: 09/15/2012] [Accepted: 09/18/2012] [Indexed: 01/16/2023]
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Frystyk J, Schou AJ, Heuck C, Vorum H, Lyngholm M, Flyvbjerg A, Wolthers OD. Prednisolone reduces the ability of serum to activate the IGF1 receptor in vitro without affecting circulating total or free IGF1. Eur J Endocrinol 2013; 168:1-8. [PMID: 23038624 DOI: 10.1530/eje-12-0518] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
OBJECTIVE End-point bioassays based on thymidine or sulfate incorporation have demonstrated that glucocorticoid (GC) treatment inhibits serum IGF1 action, but the mechanism is unknown as serum IGF1 concentrations have been reported to either increase or remain unchanged. AIM To investigate whether GC treatment affects the ability of serum to activate the IGF1 receptor (IGF1R) in vitro (i.e. bioactive IGF1), using a specific cell-based IGF1 kinase receptor activation assay. SUBJECTS AND METHODS Twenty children with stable asthma (age 7.7-13.8 years) treated for 1 week with 5 mg prednisolone in a randomized, double-blind, placebo-controlled crossover study. Non-fasting serum samples were collected in the afternoon after each 7-day period and assayed for bioactive IGF1, free IGF1, total IGFs, IGF-binding proteins (IGFBPs), and insulin. RESULTS Prednisolone treatment reduced IGF1 bioactivity by 12.6% from 2.22±0.18 to 1.94±0.15 μg/l (P=0.01) compared with placebo. In contrast, no changes were observed for (μg/l; placebo vs prednisolone) total IGF1 (215±27 vs 212±24), free IGF1 (1.50±0.16 vs 1.43±0.17), total IGF2 (815±26 vs 800±31), IGFBP3 (3140±101 vs 3107±95), IGFBP2 (238±21 vs 220±19), IGFBP1 (32±6 vs 42±10), or IGFBP1-bound IGF1 (24±5 vs 26±7). Insulin remained unchanged as did IGFBP levels as estimated by western ligand blotting. Prednisolone had no direct effects on IGF1R phosphorylation. CONCLUSIONS Our study gives evidence that GC treatment induces a circulating substance that is able to inhibit IGF1R activation in vitro without affecting circulating free or total IGF1. This may be one of the mechanisms by which GC inhibits IGF1 action in vivo. However, the nature of this circulating substance remains to be identified.
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Affiliation(s)
- Jan Frystyk
- Institute of Clinical Medicine, Aarhus University, Aarhus C, Denmark.
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Agrawal M, Arora S, Li J, Rahmani R, Sun L, Steinlauf AF, Mechanick JI, Zaidi M. Bone, inflammation, and inflammatory bowel disease. Curr Osteoporos Rep 2011; 9:251-7. [PMID: 21935582 DOI: 10.1007/s11914-011-0077-9] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Osteoporosis is a leading cause of morbidity in patients with inflammatory bowel disease (IBD). Bone loss is an early systemic process and occurs even before clinical disease manifests. Bone disease is attributed to vitamin D deficiency, steroid use, and/or systemic inflammation. In this review, we discuss the molecular pathways of bone loss mediated by inflammatory cytokines and other mediators. Further research will hopefully clarify the mechanisms of inflammation-induced bone loss in IBD and guide effective treatment modalities.
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Affiliation(s)
- Manasi Agrawal
- Department of Gastroenterology, Maimonides Medical Center, Brooklyn, NY 11201, USA.
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Lee YC, Jogie-Brahim S, Lee DY, Han J, Harada A, Murphy LJ, Oh Y. Insulin-like growth factor-binding protein-3 (IGFBP-3) blocks the effects of asthma by negatively regulating NF-κB signaling through IGFBP-3R-mediated activation of caspases. J Biol Chem 2011; 286:17898-909. [PMID: 21383009 DOI: 10.1074/jbc.m111.231035] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Insulin-like growth factor-binding protein-3 (IGFBP-3) is a multifunctional protein known for modulating mitogenic and metabolic actions of IGFs as well as exerting a variety of biological actions not involving IGFs. Here, we show that IGFBP-3 blocks specific physiological consequences of asthma in an IGF-independent manner in vitro and in vivo. IGFBP-3 treatment effectively reduced all physiological manifestations of asthma examined in vivo (airway hyper-responsiveness, cellular and pathological changes in bronchoalveolar lavage fluid and lung tissue, and expression of numerous proinflammatory molecules). These unique IGFBP-3 effects were further confirmed in IGFBP-3-transgenic mice, thus strengthening the notion of IGFBP-3 actions within the respiratory system. Using human epithelial cells, we demonstrated the following: 1) IGFBP-3 blocks TNF-α-induced expression of proinflammatory molecules; 2) IGFBP-3 attenuates the TNF-α-induced migratory response of eosinophils; and 3) IGFBP-3 negatively regulates TNF-α-induced expression of the key NF-κB regulatory molecules IκBα and p65-NF-κB at the post-translational level. We identified that IGFBP-3 degrades IκBα and p65-NF-κB proteins through IGFBP-3 receptor (IGFBP-3R)-mediated activation of caspases thereby inhibiting TNF-α-induced activation of NF-κB signaling cascades. This unique IGFBP-3/IGFBP-3R action was further confirmed by demonstrating complete inhibition of IGFBP-3 action in the presence of caspase inhibitors as well as IGFBP-3R siRNAs. Non-IGF-binding IGFBP-3 mutants further proved the IGF-independent action of IGFBP-3. Our findings indicate that IGFBP-3 inhibits airway inflammation and hyper-responsiveness via an IGF-independent mechanism that involves activation of IGFBP-3R signaling and cross-talk with NF-κB signaling. The IGFBP-3/IGFBP-3R system therefore plays a pivotal role in the pathogenesis of asthma and can serve as a newly identified potential therapeutic target for this debilitating disease.
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Affiliation(s)
- Yong-Chul Lee
- Department of Internal Medicine, School of Medicine, Chonbuk National University, Jeonju 56-182, South Korea
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Zhao D, Bakirtzi K, Zhan Y, Zeng H, Koon HW, Pothoulakis C. Insulin-like growth factor-1 receptor transactivation modulates the inflammatory and proliferative responses of neurotensin in human colonic epithelial cells. J Biol Chem 2011; 286:6092-9. [PMID: 21212273 DOI: 10.1074/jbc.m110.192534] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
Neurotensin (NT) is a gastrointestinal neuropeptide that modulates intestinal inflammation and healing by binding to its high-affinity receptor NTR1. The dual role of NT in inflammation and healing is demonstrated in models of colitis induced by Clostridium difficile toxin A and dextran sulfate sodium, respectively, and involves NF-κB-dependent IL-8 expression and EGF receptor-mediated MAPK activation in human colonocytes. However, the detailed signaling pathways involved in these responses remain to be elucidated. We report here that NT/NTR1 coupling in human colonic epithelial NCM460 cells activates tyrosine phosphorylation of the insulin-like growth factor-1 receptor (IGF-1R) in a time- and dose-dependent manner. NT also rapidly induces Src tyrosine phosphorylation, whereas pretreatment of cells with the Src inhibitor PP2 before NT exposure decreases NT-induced IGF-1R phosphorylation. In addition, inhibition of IGF-1R activation by either its specific antagonist AG1024 or siRNA against IGF-1 significantly reduces NT-induced IL-8 expression and NF-κB-dependent reporter gene expression. Pretreatment with AG1024 also inhibits Akt activation and apoptosis induced by NT. Silencing of Akt expression by siRNA also substantially attenuates NT-induced IL-8 promoter activity and NF-κB-dependent reporter gene expression. This is the first report to indicate that NT transactivates IGF-1R and that this response is linked to Akt phosphorylation and NF-κB activation, contributing to both pro-inflammatory and tissue repair signaling pathways in response to NT in colonic epithelial cells. We propose that IGF-1R activation represents a previously unrecognized key pathway involved in the mechanisms by which NT and NTR1 modulate colonic inflammation and inflammatory bowel disease.
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Affiliation(s)
- Dezheng Zhao
- Division of Gastroenterology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts 022115, USA.
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Puleo F, Meirelles K, Navaratnarajah M, Fitzpatrick L, Shumate ML, Cooney RN, Lang CH. Skeletal muscle catabolism in trinitrobenzene sulfonic acid-induced murine colitis. Metabolism 2010; 59:1680-90. [PMID: 20546811 PMCID: PMC2941564 DOI: 10.1016/j.metabol.2010.03.021] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2009] [Revised: 03/25/2010] [Accepted: 03/30/2010] [Indexed: 02/07/2023]
Abstract
The present study determined whether the muscle atrophy produced by colitis is associated with altered rates of muscle protein synthesis or degradation, as well as the potential role of the local (eg, muscle) insulin-like growth factor (IGF) system and muscle-specific ubiquitin E3 ligases atrogin-1 and MuRF1 in mediating altered muscle protein balance. Colitis was induced in C57BL/6 mice by intrarectal administration of trinitrobenzene sulfonic acid (TNBS), and blood and tissues were collected on day 10. Mice with inflammatory bowel disease demonstrated reduced skeletal muscle mass and protein content, whereas colonic segment weight and gross damage score were both increased in mice with colitis, compared with time-matched control values. There was no change in muscle protein synthesis in mice with inflammatory bowel disease; but there was an increased protein breakdown (45%), proteasome activity (85%), and messenger RNA (mRNA) expression for atrogin-1 and MuRF1 (200%-300%) in muscle. These changes were associated with a reduction in liver (but not muscle) IGF-I mRNA as well as a reduction in both total and free IGF-I in the blood. Colitis decreased the hepatic content of IGF binding protein (IGFBP)-3 mRNA by 40% and increased IGFBP-1 mRNA by 100%. In contrast, colitis did alter IGFBP mRNAs in muscle. The tumor necrosis factor-α, interleukin-6, and nitric oxide synthase 2 mRNA content of both liver and skeletal muscle was increased in TNBS-treated mice; and plasma tumor necrosis factor-α and interleukin-6 concentrations were also elevated. These data suggest that TNBS-induced colitis is independent of a change in muscle protein synthesis but dependent on stimulation of protein degradation via increased expression of muscle-specific atrogenes, which may be mediated in part by the reduction in circulating concentration of IGF-I and the concomitant increase in inflammatory mediators observed in the blood and muscle per se.
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Affiliation(s)
- Frances Puleo
- Department of Surgery, Penn State College of Medicine, Hershey, PA 17033
| | - Katia Meirelles
- Department of Surgery, Penn State College of Medicine, Hershey, PA 17033
| | | | - Leo Fitzpatrick
- Department of Pharmacology, Penn State College of Medicine, Hershey, PA 17033
| | | | - Robert N. Cooney
- Department of Surgery, Penn State College of Medicine, Hershey, PA 17033
- Department of Cellular and Molecular Physiology, Penn State College of Medicine, Hershey, PA 17033
| | - Charles H. Lang
- Department of Surgery, Penn State College of Medicine, Hershey, PA 17033
- Department of Cellular and Molecular Physiology, Penn State College of Medicine, Hershey, PA 17033
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Nedić O, Malenković V, Nikolić JA, Baricević I. Insulin-like growth factor I (IGF-I) as a sensitive biomarker of catabolism in patients with gastrointestinal diseases. J Clin Lab Anal 2007; 21:335-9. [PMID: 17847115 PMCID: PMC6649162 DOI: 10.1002/jcla.20193] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Gastrointestinal ailments evoke changes in the hypothalamic-pituitary-adrenal (HPA) axis and modulation of hepatic protein synthesis. We examined the catabolic effect of certain primary gastrointestinal diseases and surgery on the concentration of insulin-like growth factor I (IGF-I). Blood samples from patients with gastric cancer (GC), cholecystitis (CC), or inguinal hernia (IH) were taken before and after surgery. The concentrations of IGF-I, IGF binding protein-1 (IGFBP-1), insulin, cortisol, and glucose were determined. In GC patients the concentration of IGF-I was reduced and the concentrations of IGFBP-1 and cortisol were elevated preoperatively; after surgery, IGFBP-1 normalized. In CC patients the concentration of IGF-I was low and the concentration of IGFBP-1 was high before cholecystectomy; after surgery IGFBP-1 returned to normal and the concentration of cortisol increased. In IH patients the concentration of IGF-I was low and the concentrations of IGFBP-1 and cortisol were high before surgery; after laparotomy IGFBP-1 returned to normal. The metabolic changes were present in all analyzed patient groups, regardless of the severity of disease and nutrition. The concentration of IGF-I was reduced before surgery and remained reduced after, recommending IGF-I as a metabolic marker in both pre and postoperative examination of patients.
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Affiliation(s)
- Olgica Nedić
- Institute for the Application of Nuclear Energy (INEP), University of Belgrade, Belgrade Serbia.
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