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Collins CB, Nguyen TT, Leddy RS, Alula KM, Yeckes AR, Strassheim D, Aherne CM, Luck ME, Karoor V, Jedlicka P, Pierce A, de Zoeten EF. Heat shock factor 1 drives regulatory T-cell induction to limit murine intestinal inflammation. Mucosal Immunol 2024; 17:94-110. [PMID: 37944754 PMCID: PMC10953693 DOI: 10.1016/j.mucimm.2023.11.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 10/13/2023] [Accepted: 11/02/2023] [Indexed: 11/12/2023]
Abstract
The heat shock response is a critical component of the inflammatory cascade that prevents misfolding of new proteins and regulates immune responses. Activation of clusters of differentiation (CD)4+ T cells causes an upregulation of heat shock transcription factor, heat shock factor 1 (HSF1). We hypothesized that HSF1 promotes a pro-regulatory phenotype during inflammation. To validate this hypothesis, we interrogated cell-specific HSF1 knockout mice and HSF1 transgenic mice using in vitro and in vivo techniques. We determined that while HSF1 expression was induced by anti-CD3 stimulation alone, the combination of anti-CD3 and transforming growth factor β, a vital cytokine for regulatory T cell (Treg) development, resulted in increased activating phosphorylation of HSF1, leading to increased nuclear translocation and binding to heat shock response elements. Using chromatin immunoprecipitation (ChIP), we demonstrate the direct binding of HSF1 to foxp3 in isolated murine CD4+ T cells, which in turn coincided with induction of FoxP3 expression. We defined that conditional knockout of HSF1 decreased development and function of Tregs and overexpression of HSF1 led to increased expression of FoxP3 along with enhanced Treg suppressive function. Adoptive transfer of CD45RBHigh CD4 colitogenic T cells along with HSF1 transgenic CD25+ Tregs prevented intestinal inflammation when wild-type Tregs did not. Finally, overexpression of HSF1 provided enhanced barrier function and protection from murine ileitis. This study demonstrates that HSF1 promotes Treg development and function and may represent both a crucial step in the development of induced regulatory T cells and an exciting target for the treatment of inflammatory diseases with a regulatory T-cell component. SIGNIFICANCE STATEMENT: The heat shock response (HSR) is a canonical stress response triggered by a multitude of stressors, including inflammation. Evidence supports the role of the HSR in regulating inflammation, yet there is a paucity of data on its influence in T cells specifically. Gut homeostasis reflects a balance between regulatory clusters of differentiation (CD)4+ T cells and pro-inflammatory T-helper (Th)17 cells. We show that upon activation within T cells, heat shock factor 1 (HSF1) translocates to the nucleus, and stimulates Treg-specific gene expression. HSF1 deficiency hinders Treg development and function and conversely, HSF1 overexpression enhances Treg development and function. While this work, focuses on HSF1 as a novel therapeutic target for intestinal inflammation, the findings have significance for a broad range of inflammatory conditions.
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Affiliation(s)
- Colm B Collins
- Mucosal Inflammation Program University of Colorado, Anschutz Medical Campus, Aurora, CO, USA; Department of Pediatrics, Division of Gastroenterology, Hepatology and Nutrition University of Colorado, Anschutz Medical Campus, Aurora, CO, USA; Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Dublin, Ireland
| | - Tom T Nguyen
- Mucosal Inflammation Program University of Colorado, Anschutz Medical Campus, Aurora, CO, USA; Department of Pediatrics, Division of Gastroenterology, Hepatology and Nutrition University of Colorado, Anschutz Medical Campus, Aurora, CO, USA
| | - Robert S Leddy
- Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Dublin, Ireland
| | - Kibrom M Alula
- Mucosal Inflammation Program University of Colorado, Anschutz Medical Campus, Aurora, CO, USA; Department of Pediatrics, Division of Gastroenterology, Hepatology and Nutrition University of Colorado, Anschutz Medical Campus, Aurora, CO, USA
| | - Alyson R Yeckes
- Mucosal Inflammation Program University of Colorado, Anschutz Medical Campus, Aurora, CO, USA; Department of Pediatrics, Division of Gastroenterology, Hepatology and Nutrition University of Colorado, Anschutz Medical Campus, Aurora, CO, USA
| | - Derek Strassheim
- Mucosal Inflammation Program University of Colorado, Anschutz Medical Campus, Aurora, CO, USA
| | - Carol M Aherne
- Mucosal Inflammation Program University of Colorado, Anschutz Medical Campus, Aurora, CO, USA; Department of Anesthesiology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA; Department of Medicine, Division of Pulmonary Sciences and Critical Care Medicine, University of Colorado, Anschutz Medical Campus, Aurora, CO, USA
| | - Marisa E Luck
- Mucosal Inflammation Program University of Colorado, Anschutz Medical Campus, Aurora, CO, USA; Department of Pediatrics, Division of Gastroenterology, Hepatology and Nutrition University of Colorado, Anschutz Medical Campus, Aurora, CO, USA
| | - Vijaya Karoor
- Department of Medicine, Division of Pulmonary Sciences and Critical Care Medicine, University of Colorado, Anschutz Medical Campus, Aurora, CO, USA
| | - Paul Jedlicka
- Department of Pathology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | | | - Edwin F de Zoeten
- Mucosal Inflammation Program University of Colorado, Anschutz Medical Campus, Aurora, CO, USA; Department of Pediatrics, Division of Gastroenterology, Hepatology and Nutrition University of Colorado, Anschutz Medical Campus, Aurora, CO, USA.
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Schroeder HT, De Lemos Muller CH, Heck TG, Krause M, Homem de Bittencourt PI. Resolution of inflammation in chronic disease via restoration of the heat shock response (HSR). Cell Stress Chaperones 2024; 29:66-87. [PMID: 38309688 PMCID: PMC10939035 DOI: 10.1016/j.cstres.2024.01.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 01/28/2024] [Accepted: 01/29/2024] [Indexed: 02/05/2024] Open
Abstract
Effective resolution of inflammation via the heat shock response (HSR) is pivotal in averting the transition to chronic inflammatory states. This transition characterizes a spectrum of debilitating conditions, including insulin resistance, obesity, type 2 diabetes, nonalcoholic fatty liver disease, and cardiovascular ailments. This manuscript explores a range of physiological, pharmacological, and nutraceutical interventions aimed at reinstating the HSR in the context of chronic low-grade inflammation, as well as protocols to assess the HSR. Monitoring the progression or suppression of the HSR in patients and laboratory animals offers predictive insights into the organism's capacity to combat chronic inflammation, as well as the impact of exercise and hyperthermic treatments (e.g., sauna or hot tub baths) on the HSR. Interestingly, a reciprocal correlation exists between the expression of HSR components in peripheral blood leukocytes (PBL) and the extent of local tissue proinflammatory activity in individuals afflicted by chronic inflammatory disorders. Therefore, the Heck index, contrasting extracellular 70 kDa family of heat shock proteins (HSP70) (proinflammatory) and intracellular HSP70 (anti-inflammatory) in PBL, serves as a valuable metric for HSR assessment. Our laboratory has also developed straightforward protocols for evaluating HSR by subjecting whole blood samples from both rodents and human volunteers to ex vivo heat challenges. Collectively, this discussion underscores the critical role of HSR disruption in the pathogenesis of chronic inflammatory states and emphasizes the significance of simple, cost-effective tools for clinical HSR assessment. This understanding is instrumental in the development of innovative strategies for preventing and managing chronic inflammatory diseases, which continue to exert a substantial global burden on morbidity and mortality.
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Affiliation(s)
- Helena Trevisan Schroeder
- Laboratory of Cellular Physiology (FisCel), Department of Physiology, Institute of Basic Health Sciences (ICBS), Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil
| | - Carlos Henrique De Lemos Muller
- Laboratory of Inflammation, Metabolism and Exercise Research (LAPIMEX), Department of Physiology, ICBS, UFRGS, Porto Alegre, Rio Grande do Sul, Brazil
| | - Thiago Gomes Heck
- Post Graduate Program in Integral Health Care (PPGAIS-UNIJUÍ/UNICRUZ/URI), Regional University of Northwestern Rio Grande Do Sul State (UNIJUI) and Post Graduate Program in Mathematical and Computational Modeling (PPGMMC), UNIJUI, Ijuí, Rio Grande do Sul, Brazil
| | - Mauricio Krause
- Laboratory of Inflammation, Metabolism and Exercise Research (LAPIMEX), Department of Physiology, ICBS, UFRGS, Porto Alegre, Rio Grande do Sul, Brazil
| | - Paulo Ivo Homem de Bittencourt
- Laboratory of Cellular Physiology (FisCel), Department of Physiology, Institute of Basic Health Sciences (ICBS), Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil.
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Scalia F, Carini F, David S, Giammanco M, Mazzola M, Rappa F, Bressan NI, Maida G, Tomasello G. Inflammatory Bowel Diseases: An Updated Overview on the Heat Shock Protein Involvement. Int J Mol Sci 2023; 24:12129. [PMID: 37569505 PMCID: PMC10419025 DOI: 10.3390/ijms241512129] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 07/25/2023] [Accepted: 07/26/2023] [Indexed: 08/13/2023] Open
Abstract
Inflammatory bowel diseases (IBDs) represent chronic idiopathic disorders, including Crohn's disease (CD) and ulcerative colitis (UC), in which one of the trigger factors is represented by aberrant immune interactions between the intestinal epithelium and the intestinal microbiota. The involvement of heat shock proteins (HSPs) as etiological and pathogenetic factors is becoming of increasing interest. HSPs were found to be differentially expressed in the intestinal tissues and sera of patients with CD and UC. It has been shown that HSPs can play a dual role in the disease, depending on the stage of progression. They can support the inflammatory and fibrosis process, but they can also act as protective factors during disease progression or before the onset of one of the worst complications of IBD, colorectal cancer. Furthermore, HSPs are able to mediate the interaction between the intestinal microbiota and intestinal epithelial cells. In this work, we discuss the involvement of HSPs in IBD considering their genetic, epigenetic, immune and molecular roles, referring to the most recent works present in the literature. With our review, we want to shed light on the importance of further exploring the role of HSPs, or even better, the role of the molecular chaperone system (CS), in IBD: various molecules of the CS including HSPs may have diagnostic, prognostic and therapeutic potential, promoting the creation of new drugs that could overcome the side-effects of the therapies currently used.
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Affiliation(s)
- Federica Scalia
- Biomedicine, Neurosciences and Advanced Diagnostics BIND, School of Medicine, University of Palermo, 90133 Palermo, Italy; (F.C.); (M.M.); (F.R.); (G.M.); (G.T.)
- Euro-Mediterranean Institute of Science and Technology (IEMEST), 90139 Palermo, Italy
| | - Francesco Carini
- Biomedicine, Neurosciences and Advanced Diagnostics BIND, School of Medicine, University of Palermo, 90133 Palermo, Italy; (F.C.); (M.M.); (F.R.); (G.M.); (G.T.)
- Hospital University School of Medicine, P. Giaccone, 90127 Palermo, Italy
| | - Sabrina David
- Department Surgical, Oncological and Oral Sciences, School of Medicine, University of Palermo, 90133 Palermo, Italy; (S.D.); (M.G.)
| | - Marco Giammanco
- Department Surgical, Oncological and Oral Sciences, School of Medicine, University of Palermo, 90133 Palermo, Italy; (S.D.); (M.G.)
| | - Margherita Mazzola
- Biomedicine, Neurosciences and Advanced Diagnostics BIND, School of Medicine, University of Palermo, 90133 Palermo, Italy; (F.C.); (M.M.); (F.R.); (G.M.); (G.T.)
| | - Francesca Rappa
- Biomedicine, Neurosciences and Advanced Diagnostics BIND, School of Medicine, University of Palermo, 90133 Palermo, Italy; (F.C.); (M.M.); (F.R.); (G.M.); (G.T.)
- Institute of Translational Pharmacology (IFT), Section of Palermo, Italy National Research Council of Italy (CNR), 90146 Palermo, Italy
| | | | - Giorgio Maida
- Biomedicine, Neurosciences and Advanced Diagnostics BIND, School of Medicine, University of Palermo, 90133 Palermo, Italy; (F.C.); (M.M.); (F.R.); (G.M.); (G.T.)
| | - Giovanni Tomasello
- Biomedicine, Neurosciences and Advanced Diagnostics BIND, School of Medicine, University of Palermo, 90133 Palermo, Italy; (F.C.); (M.M.); (F.R.); (G.M.); (G.T.)
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Faisal S, Abdelaal S, Jeraiby MA, Toaimah FHS, Kattan SW, Abdel-Gawad AR, Riad E, Toraih EA, Fawzy MS, Ibrahim A. Diagnostic and Prognostic Risk Assessment of Heat Shock Protein HSPA1B rs2763979 Gene Variant in Asthma. Genes (Basel) 2022; 13:genes13122391. [PMID: 36553658 PMCID: PMC9778050 DOI: 10.3390/genes13122391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 12/13/2022] [Accepted: 12/14/2022] [Indexed: 12/23/2022] Open
Abstract
Given the significant role the heat shock protein Hsp70 plays in modulating cellular homeostasis in several chronic inflammatory disorders, the genetic variation of the inducible HSP70 (HSPA1B) gene may impact protein expression and disease phenotype. The HSPA1B rs2763979 variant has been associated with multiple inflammatory scenarios, but no previous studies have explored its association with asthma. In this sense, this cross-sectional study enrolled 90 children with asthma and 218 age-/sex-matched healthy volunteers for rs2763979 variant genotyping by TaqMan allelic discrimination analysis. The results were investigated under several genetic models and associated with disease susceptibility and clinicolaboratory data. Overall analysis, including the 308 participants, revealed a higher C allele frequency among patients relative to controls (43.0% vs. 33%, p = 0.006). Furthermore, patients with the C variant initially had a higher risk of asthma under heterozygous (OR = 2.75, 95%CI = 1.46-5.18, p = 0.003), homozygous (OR = 3.35, 95%CI = 1.19-9.39, p = 0.008), dominant (OR = 2.83, 95%CI = 1.52-5.25, p < 0.001), and overdominant (OR = 2.12, 95%CI = 1.20-3.74, p = 0.008) models. However, after employing a 1:1 nearest propensity matching analysis, the studied variant showed only borderline significance with asthma under the dominant model in 71 matched cohorts. Interestingly, patients who carry the rs2763979 CC genotype showed favorable spirometric parameters in terms of better (mean ± SD) forced vital capacity (86.3 ± 7.4 vs. 77.7 ± 6.1 and 75.7 ± 7.2 for CT and TT, respectively, p = 0.021), forced expiratory volume in one second before bronchodilation (60.7 ± 12.9 vs. 54.9 ± 7.6 and 56.1 ± 7.5 for CT and TT, respectively, p = 0.021), and an improvement in peak expiratory flow rate after inhaled salbutamol bronchodilator (p = 0.044) relative to the counterpart genotypes. In conclusion, the HSPA1B rs2763979 variant might have prognostic utility as a genetic marker for asthma in our population. Further larger studies on different ethnicities are recommended to validate the results.
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Affiliation(s)
- Salwa Faisal
- Department of Medical Biochemistry and Molecular Biology, Faculty of Medicine, Suez Canal University, Ismailia 41522, Egypt
| | - Sherouk Abdelaal
- Department of Pediatrics, Faculty of Medicine, Suez Canal University, Ismailia 41522, Egypt
| | - Mohammed A. Jeraiby
- Department of Biochemistry, Faculty of Medicine, Jazan University, Jazan 82621, Saudi Arabia
| | - Fatihi Hassan Soliman Toaimah
- Division of Pediatric Emergency Medicine, Department of Pediatrics, Hamad Medical Corporation, Doha 3050, Qatar
- Department of Clinical Pediatrics and Clinical Emergency Medicine, Weill Cornell Medicine-Qatar, Doha 24144, Qatar
- Department of Clinical Academic Education, College of Medicine, Qatar University, Doha 2713, Qatar
| | - Shahad W. Kattan
- Department of Medical Laboratory, College of Applied Medical Sciences, Taibah University, Yanbu 46423, Saudi Arabia
| | | | - Eman Riad
- Department of Chest Diseases and Tuberculosis, Faculty of Medicine, Suez Canal University, Ismailia 41522, Egypt
| | - Eman A. Toraih
- Division of Endocrine and Oncologic Surgery, Department of Surgery, Tulane University School of Medicine, New Orleans, LA 70112, USA
- Medical Genetics Unit, Department of Histology and Cell Biology, Suez Canal University, Ismailia 41522, Egypt
- Correspondence: (E.A.T.); (M.S.F.); Tel.: +1-346-907-4237 (E.A.T.); +966-583241944 (M.S.F.)
| | - Manal S. Fawzy
- Department of Medical Biochemistry and Molecular Biology, Faculty of Medicine, Suez Canal University, Ismailia 41522, Egypt
- Department of Biochemistry, Faculty of Medicine, Northern Border University, Arar 1321, Saudi Arabia
- Correspondence: (E.A.T.); (M.S.F.); Tel.: +1-346-907-4237 (E.A.T.); +966-583241944 (M.S.F.)
| | - Ahmed Ibrahim
- Department of Pediatrics, Faculty of Medicine, Suez Canal University, Ismailia 41522, Egypt
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Lin Q, Zhang D, Zhang J, Luo W, Xu Z, Yao J, Wang L. Identification of lncRNA DLEU2 as a potential diagnostic biomarker and anti-inflammatory target for ulcerative colitis. Front Pharmacol 2022; 13:991448. [PMID: 36188540 PMCID: PMC9515961 DOI: 10.3389/fphar.2022.991448] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Accepted: 08/19/2022] [Indexed: 11/13/2022] Open
Abstract
The incidence of ulcerative colitis (UC) in China has significantly increased over the past 10 years. Here we aim to explore potential diagnostic biomarkers and anti-inflammatory targets associated with UC. Patients with UC were enrolled in this study. The expression of lncRNAs and mRNAs in the nidus of the gut mucosa and adjacent normal mucosa samples was evaluated by RNA sequencing. The role of DLEU2 in inflammation and NF-κB signaling pathway was examined by RT-qPCR, Western blotting, and ELISA with human macrophage-like cells derived from THP-1. 564 lncRNAs and 859 mRNAs are significantly altered in the nidus of the gut mucosa of UC patients. Among the differentially expressed lncRNAs, DLEU2 changes the most. The expression of DLEU2 is negatively associated with inflammatory factors such as TNF-α, IL-1α, IL-1β, IL-6, and NLRP3. Mechanistically, DLEU2 exerts anti-inflammatory activity by inhibiting the NF-κB signaling pathway. In conclusion, the lncRNA DLEU2 in the intestinal mucosa is dysregulated upon gut inflammation and may act as a diagnostic biomarker and a therapeutic target for UC.
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Affiliation(s)
- Qiuling Lin
- Department of General Practice, Shenzhen People’s Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, Guangdong, China
| | - Dingguo Zhang
- Department of Gastroenterology, Shenzhen People’s Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, Guangdong, China
| | - Jian Zhang
- Department of Plastic Surgery, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - Weixiang Luo
- Department of Nursing, Shenzhen People’s Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, Guangdong, China
| | - Zhenglei Xu
- Department of Gastroenterology, Shenzhen People’s Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, Guangdong, China
| | - Jun Yao
- Department of Gastroenterology, Shenzhen People’s Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, Guangdong, China
- *Correspondence: Jun Yao, ; Lisheng Wang,
| | - Lisheng Wang
- Department of Gastroenterology, Shenzhen People’s Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, Guangdong, China
- *Correspondence: Jun Yao, ; Lisheng Wang,
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Elshahed OM, Shaker OG. Heat Shock Protein 70 Gene Polymorphism in Egyptian Patients with Type 2 Diabetes Mellitus, with and without Nephropathy. SAUDI JOURNAL OF KIDNEY DISEASES AND TRANSPLANTATION 2020; 31:787-795. [PMID: 32801239 DOI: 10.4103/1319-2442.292312] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Heat-shock proteins (HSPs) are a group of proteins that function to protect cells and tissues against different types of damage. The aim of this work was to study the relationship between the genetic variation in HSP70 genes and the risk for development of nephropathy in Egyptian patients with Type 2 diabetes mellitus (DM). This study was carried out on 90 patients divided into three groups: 30 patients of Type 2 DM with nephropathy (Group I), 30 patients of Type 2 DM without nephropathy (Group II) with duration of diabetes > 10 years in both patient groups, and 30 healthy persons, who served as controls (Group III). All the studied patients were submitted to full history taking, complete clinical examination, and laboratory investigations including fasting blood glucose, glycated hemoglobin, renal function tests, and urinary albumin- to-creatinine ratio. HSP70-1 -110 AC, +190 G/C, HSP70-2 +1267 A/G, and shock protein70- hom +2437 T/C gene polymorphism were determined using the polymerase chain reaction- restriction fragment length polymorphism technique (PCR-RFLP). The results of the present study showed a highly statistically significant difference between Group I and Group II regarding family history, systolic and diastolic blood pressure, and duration of diabetes. There was a significant difference in the distribution of C allele of HSP70-1 -110A/C and +190 G/C and G allele of HSP70-2+1267A/G with more frequent detection in nephropathy group versus other groups, while there was no significant difference in genotype and allele distributions among the three studied groups for the HSP70-hom. It can be concluded that the C allele distribution of (HSP70-1 -110 A/C and HSP70+190 C/G) and the G allele distribution of HSP70-2 +1267A/G are associated with the susceptibility to renal complications in Egyptian patients with Type 2 DM.
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7
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Tang L, Xu M. Candidate polymorphisms and susceptibility to inflammatory bowel disease: A systematic review and meta-analysis. Gene X 2020; 753:144814. [DOI: 10.1016/j.gene.2020.144814] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Accepted: 05/23/2020] [Indexed: 12/20/2022] Open
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Hoter A, Naim HY. The Functions and Therapeutic Potential of Heat Shock Proteins in Inflammatory Bowel Disease-An Update. Int J Mol Sci 2019; 20:ijms20215331. [PMID: 31717769 PMCID: PMC6862201 DOI: 10.3390/ijms20215331] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Revised: 10/24/2019] [Accepted: 10/25/2019] [Indexed: 02/07/2023] Open
Abstract
Inflammatory bowel disease (IBD) is a multifactorial human intestinal disease that arises from numerous, yet incompletely defined, factors. Two main forms, Crohn's disease (CD) and ulcerative colitis (UC), lead to a chronic pathological form. Heat shock proteins (HSPs) are stress-responsive molecules involved in various pathophysiological processes. Several lines of evidence link the expression of HSPs to the development and prognosis of IBD. HSP90, HSP70 and HSP60 have been reported to contribute to IBD in different aspects. Moreover, induction and/or targeted inhibition of specific HSPs have been suggested to ameliorate the disease consequences. In the present review, we shed the light on the role of HSPs in IBD and their targeting to prevent further disease progression.
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Affiliation(s)
- Abdullah Hoter
- Department of Biochemistry and Chemistry of Nutrition, Faculty of Veterinary Medicine, Cairo University, Giza 12211, Egypt or
- Department of Physiological Chemistry, University of Veterinary Medicine Hannover, 30559 Hannover, Germany
| | - Hassan Y. Naim
- Department of Physiological Chemistry, University of Veterinary Medicine Hannover, 30559 Hannover, Germany
- Correspondence: ; Tel.: +49-511-953-8780; Fax: +49-511-953-8585
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Regulation of Antimicrobial Pathways by Endogenous Heat Shock Proteins in Gastrointestinal Disorders. GASTROINTESTINAL DISORDERS 2018. [DOI: 10.3390/gidisord1010005] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Heat shock proteins (HSPs) are essential mediators of cellular homeostasis by maintaining protein functionality and stability, and activating appropriate immune cells. HSP activity is influenced by a variety of factors including diet, microbial stimuli, environment and host immunity. The overexpression and down-regulation of HSPs is associated with various disease phenotypes, including the inflammatory bowel diseases (IBD) such as Crohn’s disease (CD). While the precise etiology of CD remains unclear, many of the putative triggers also influence HSP activity. The development of different CD phenotypes therefore may be a result of the disease-modifying behavior of the environmentally-regulated HSPs. Understanding the role of bacterial and endogenous HSPs in host homeostasis and disease will help elucidate the complex interplay of factors. Furthermore, discerning the function of HSPs in CD may lead to therapeutic developments that better reflect and respond to the gut environment.
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Liefferinckx C, Franchimont D. Viewpoint: Toward the Genetic Architecture of Disease Severity in Inflammatory Bowel Diseases. Inflamm Bowel Dis 2018; 24:1428-1439. [PMID: 29788122 DOI: 10.1093/ibd/izy109] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Indexed: 02/07/2023]
Abstract
Inflammatory bowel disease (IBD) is characterized by uneven disease courses with various clinical outcomes. A few prognostic markers of disease severity may help stratify patients and identify those who will benefit the most from early aggressive treatment. The concept of disease severity remains too broad and vague, mainly because the definition must embrace several disease mechanisms, mainly inflammation and fibrosis, with various rates of disease progression. The magnitude of inflammation is an obvious key driver of disease severity in IBD that ultimately influence disease behavior. Advances in the genetics underlying disease severity are currently emerging, but attempts to overlap the genetics of disease susceptibility and severity have until now been unsatisfactory, suggesting that the genetic architecture of disease severity may be distinct from the genetics of disease susceptibility. In this review, we report on the current knowledge on disease severity and on the main research venues to decipher the genetic architecture of disease severity.
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Affiliation(s)
| | - Denis Franchimont
- Department of Gastroenterology, Erasme Hospital, ULB, Brussels, Belgium
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11
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Tammaro A, Derive M, Gibot S, Leemans JC, Florquin S, Dessing MC. TREM-1 and its potential ligands in non-infectious diseases: from biology to clinical perspectives. Pharmacol Ther 2017; 177:81-95. [PMID: 28245991 DOI: 10.1016/j.pharmthera.2017.02.043] [Citation(s) in RCA: 151] [Impact Index Per Article: 21.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Triggering receptor expressed on myeloid cells-1 (TREM-1) is expressed on the majority of innate immune cells and to a lesser extent on parenchymal cells. Upon activation, TREM-1 can directly amplify an inflammatory response. Although it was initially demonstrated that TREM-1 was predominantly associated with infectious diseases, recent evidences shed new light into its role in sterile inflammatory diseases. Indeed, TREM-1 receptor and its signaling pathways contribute to the pathology of several non-infectious acute and chronic inflammatory diseases, including atherosclerosis, ischemia reperfusion-induced tissue injury, colitis, fibrosis and cancer. This review, aims to give an extensive overview of TREM-1 in non-infectious diseases, with the focus on the therapeutic potential of TREM-1 intervention strategies herein. In addition, we provide the reader with a functional enrichment analysis of TREM-1 signaling pathway and potential TREM-1 ligands in these diseases, obtained via in silico approach. We discuss pre-clinical studies which show that TREM-1 inhibition, via synthetic soluble TREM-1 protein mimickers, is effective in treating (preventing) specific inflammatory disorders, without significant effects on antibacterial response. Further research aimed at identifying specific TREM-1 ligands, in different inflammatory disorders, is required to further unravel the role of this receptor, and explore new avenues to modulate its function.
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Affiliation(s)
- Alessandra Tammaro
- Department of Pathology, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands.
| | | | - Sebastien Gibot
- Medical Intensive Care Unit, Hôpital Central, CHU Nancy, Nancy, France; Inserm UMR_S1116, Faculté de Médecine, Université de Lorraine, Nancy, France
| | - Jaklien C Leemans
- Department of Pathology, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - Sandrine Florquin
- Department of Pathology, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands; Department of Pathology, Radboud University Nijmegen Medical Center, Nijmegen, The Netherlands
| | - Mark C Dessing
- Department of Pathology, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
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Association of A1538G and C2437T single nucleotide polymorphisms in heat shock protein-70 genes with diabetic nephropathy among South Indian population. Biosci Rep 2017; 37:BSR20160605. [PMID: 28246355 PMCID: PMC5469327 DOI: 10.1042/bsr20160605] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Revised: 02/20/2017] [Accepted: 02/27/2017] [Indexed: 11/18/2022] Open
Abstract
Diabetic Nephropathy (DN) is the leading cause of end-stage renal disease, characterized by progressive albuminuria and conferring additional risk of cardiovascular disease (CVD) and mortality. The crucial role of heat-shock proteins (HSPs) on renal function in patients with DN has been well documented. The present study was aimed to understand the association of HSP-70 gene variants on the susceptibility of Type 2 Diabetes Mellitus (T2DM) and DN. A total of 946 subjects (549 Males; 397 Females) were recruited and divided into four groups according to the levels of urinary albumin excretion (UAE): those with normoalbuminuria (UAE <30 mg/24 h; n=230), those with microalbuminuria (30≤ UAE ≤300 mg/24 h; n=230), and those with macroalbuminuria (UAE> 300 mg/24 h; n=230). The control group randomly enrolled a consecutive population of 256 healthy subjects who had a routine medical check-up in our hospital. Those subjects had no history or clinical symptoms of diabetes. Subjects were genotyped for HSP70-2 (+1538 A/G; rs2763979) and HSP70-hom (+2437 C/T; rs2227956) by PCR-restriction fragment length polymorphism (RFLP). The ‘G’ allele of HSP70-2 (+1538 A/G) single nucleotide polymorphism (SNP) showed relative risk for normoalbuminuria, microalbuminuria and macroalbuminuria subjects whereas the ‘T’ allele of HSP70-hom (+2437 C/T) SNP showed significant protection against macroalbuminuria subjects. In conclusion, our results indicate that the HSP70-2 (+1538 A/G) and HSP70-hom (+2437 C/T) SNPs are highly associated with renal complications in T2DM among the South Indian population.
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Kopylov U, Boucher G, Waterman M, Rivers CR, Patel M, Cho JH, Colombel JF, Duerr RH, Binion D, McGovern DP, Schumm PP, Brant SR, Silverberg MS, Rioux JD, Bitton A. Genetic Predictors of Benign Course of Ulcerative Colitis-A North American Inflammatory Bowel Disease Genetics Consortium Study. Inflamm Bowel Dis 2016; 22:2311-6. [PMID: 27575496 PMCID: PMC5098421 DOI: 10.1097/mib.0000000000000913] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
BACKGROUND A subset of patients with ulcerative colitis (UC) have a benign course and an overall favorable prognosis. Early identification of these low-risk patients may allow for a less aggressive therapeutic approach and possible reduction of therapy-associated risks. The aim of this project was to identify the genetic predictors of benign UC phenotype. METHODS UC patients were selected from the National Institute of Diabetes and Digestive and Kidney Diseases Inflammatory Bowel Disease Genetics Consortium. Benign phenotype was defined as no need for immunomodulatory or biological therapy, hospitalizations, or colectomy. The association between benign UC phenotype and known loci linked to the risk of inflammatory bowel disease (IBD) was evaluated. The results for 156 index single-nucleotide polymorphisms (SNPs) from the known IBD loci were extracted for the main analysis. The association of the benign phenotype to a genetic burden score was also evaluated. RESULTS None of the index SNPs from the IBD loci reached the predefined threshold of 1 × 10. In the exploratory analysis of the remaining Immunochip SNPs and imputed major histocompatibility complex data, 5 distinct suggestive association signals are identified (rs1697950, rs2523639, rs17836409, rs11742854, and rs75001121). CONCLUSIONS No SNPs from IBD susceptibility loci were found to be associated (at our predefined threshold of 1 × 10) with a benign UC disease course. The rs11742570 variant on chromosome 5 was the one with the greatest association to benign disease although the association did not reach the predefined significant threshold. Given the modest power of our study, the findings suggested on the exploratory analysis merit extension to larger discovery cohorts.
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Affiliation(s)
- Uri Kopylov
- McGill University Health Centre, Division of Gastroenterology, Montreal, Quebec, Canada
| | - Gabrielle Boucher
- Montreal Heart Institute, Montreal, Quebec, Canada,Université de Montréal, Montreal, Quebec, Canada
| | - Matti Waterman
- Mount Sinai Hospital, Division of Gastroenterology, Toronto, Ontario, Canada
| | - Claudia Ramos Rivers
- University of Pittsburgh School of Medicine, Division of Gastroenterology, Pittsburgh, PA, USA
| | - Mohini Patel
- Yale University, Section of Digestive Diseases, New Haven, CT, USA
| | - Judy H. Cho
- Department of Medicine, Division of Gastroenterology, Icahn School of Medicine at Mount Sinai, New York, New York,Department of Medicine, Division of Gastroenterology, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Jean Frederic Colombel
- Department of Medicine, Division of Gastroenterology, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Richard H. Duerr
- University of Pittsburgh School of Medicine, Division of Gastroenterology, Pittsburgh, PA, USA
| | - David Binion
- University of Pittsburgh School of Medicine, Division of Gastroenterology, Pittsburgh, PA, USA
| | - Dermot P.B McGovern
- Translational Genomics Group, F. Widjaja Inflammatory Bowel and Immunobiology Research Institute, Cedars-Sinai Medical Center, Los Angeles, CA
| | | | - Steven R. Brant
- Meyerhoff Inflammatory Bowel Diseases Center, Division of Gastroenterology, Johns Hopkins School of Medicine, Baltimore, MD
| | - Mark S. Silverberg
- Mount Sinai Hospital, Division of Gastroenterology, Toronto, Ontario, Canada
| | - John D. Rioux
- Montreal Heart Institute, Montreal, Quebec, Canada,Université de Montréal, Montreal, Quebec, Canada
| | - Alain Bitton
- McGill University Health Centre, Division of Gastroenterology, Montreal, Quebec, Canada
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Arnal ME, Lallès JP. Gut epithelial inducible heat-shock proteins and their modulation by diet and the microbiota. Nutr Rev 2016; 74:181-97. [PMID: 26883882 DOI: 10.1093/nutrit/nuv104] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
The epidemic of metabolic diseases has raised questions about the interplay between the human diet and the gut and its microbiota. The gut has two vital roles: nutrient absorption and intestinal barrier function. Gut barrier defects are involved in many diseases. Excess energy intake disturbs the gut microbiota and favors body entry of microbial compounds that stimulate chronic metabolic inflammation. In this context, the natural defense mechanisms of gut epithelial cells and the potential to boost them nutritionally warrant further study. One such important defense system is the activation of inducible heat-shock proteins (iHSPs) which protect the gut epithelium against oxidative stress and inflammation. Importantly, various microbial components can induce the expression of iHSPs. This review examines gut epithelial iHSPs as the main targets of microbial signals and nutrients and presents data on diseases involving disturbances of gut epithelial iHSPs. In addition, a broad literature analysis of dietary modulation of gut epithelial iHSPs is provided. Future research aims should include the identification of gut microbes that can optimize gut-protective iHSPs and the evaluation of iHSP-mediated health benefits of nutrients and food components.
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Affiliation(s)
- Marie-Edith Arnal
- M.E. Arnal and J.P. Lallès are with the Institut National de la Recherche Agronomique (INRA), Human Nutrition Division, Clermont-Ferrand, France. J.P. Lallès is with the Centre de Recherche en Nutrition Humaine Ouest, Nantes, France
| | - Jean-Paul Lallès
- M.E. Arnal and J.P. Lallès are with the Institut National de la Recherche Agronomique (INRA), Human Nutrition Division, Clermont-Ferrand, France. J.P. Lallès is with the Centre de Recherche en Nutrition Humaine Ouest, Nantes, France.
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Abstract
BACKGROUND Approximately 80% of patients with ulcerative colitis (UC) have intermittently active disease and up to 20% will require a colectomy, but little data available on predictors of poor disease course. The aim of this study was to identify clinical and genetic markers that can predict prognosis. METHODS Medical records of patients with UC with ≥5 years of follow-up and available DNA and serum were retrospectively assessed. Immunochip was used to genotype loci associated with immune mediated inflammatory disorders (IMIDs), inflammatory bowel diseases, and other single nucleotide polypmorphisms previously associated with disease severity. Serum levels of pANCA, ASCA, CBir1, and OmpC were also evaluated. Requirement for colectomy, medication, and hospitalization were used to group patients into 3 prognostic groups. RESULTS Six hundred one patients with UC were classified as mild (n = 78), moderate (n = 273), or severe disease (n = 250). Proximal disease location frequencies at diagnosis were 13%, 21%, and 30% for mild, moderate, and severe UC, respectively (P = 0.001). Disease severity was associated with greater proximal extension rates on follow-up (P < 0.0001) and with shorter time to extension (P = 0.03) and to prednisone initiation (P = 0.0004). When comparing severe UC with mild and moderate UC together, diagnosis age >40 and proximal disease location were associated with severe UC (odds ratios = 1.94 and 2.12, respectively). None of the single nucleotide polypmorphisms or serum markers tested was associated with severe UC, proximal disease extension or colectomy. CONCLUSIONS Older age and proximal disease location at diagnosis, but not genetic and serum markers, were associated with a more severe course. Further work is required to identify biomarkers that will predict outcomes in UC.
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Mutations in HSP70-2 gene change the susceptibility to clinical mastitis in Chinese Holstein. Gene 2015; 559:62-72. [DOI: 10.1016/j.gene.2015.01.015] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2014] [Revised: 01/08/2015] [Accepted: 01/09/2015] [Indexed: 11/17/2022]
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Chen J, Ren JA, Han G, Gu GS, Wang GF, Wu XW, Zhou B, Hu D, Wu Y, Zhao YZ, Li JS. Polymorphism of heat shock protein 70-2 and enterocutaneous fistula in Chinese population. World J Gastroenterol 2014; 20:12559-65. [PMID: 25253958 PMCID: PMC4168091 DOI: 10.3748/wjg.v20.i35.12559] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2014] [Revised: 04/08/2014] [Accepted: 06/20/2014] [Indexed: 02/06/2023] Open
Abstract
AIM To investigate whether the heat shock protein 70-2 (HSP70-2) polymorphism is associated with enterocutaneous fistulas in a Chinese population. METHODS This study included 131 patients with enterocutaneous/enteroatmospheric fistulas. Patients with inflammatory bowel disease or other autoimmune diseases were excluded from this study. All patients with enterocutaneous/enteroatmospheric fistulas were followed up for three months to observe disease recurrence. In addition, a total of 140 healthy controls were also recruited from the Jinling Hospital, matched according to the sex and age of the patient population. Genomic DNA was extracted from peripheral blood from each participant. The HSP70-2 restriction fragment length polymorphism related to the polymorphic PstI site at position 1267 was characterized by polymerase chain reaction (PCR). First PCR amplification was carried out, and then PCR products were digested with PstI restriction enzyme. The DNA lacking the polymorphic PstI site within HSP70-2 generates a product of 1117 bp in size (allele A), whereas the HSP70-2 PstI polymorphism produces two fragments of 936 bp and 181 bp in size (allele B). RESULTS The frequency of the HSP70-2 PstI polymorphism did not differ between patients and controls; however, the A allele was more predominant in patients with enterocutaneous fistulas than in controls (60.7% vs 51.4%, P = 0.038, OR = 1.425, 95%CI: 1.019-1.994). Sixty-one patients were cured by a definitive operation, drainage operation, or percutaneous drainage while 52 patients were cured by nonsurgical treatment. There was no significant difference in the frequency of the HSP70-2 PstI polymorphism between the patients who had surgery compared to those who did not (P = 0.437, OR = 1.237, 95%CI: 0.723-2.117). Moreover, 11 patients refused any treatment for economic reasons or tumor burden, and 7 patients with enterocutaneous fistulas (5.8%) died during the follow-up period. However, there was no significant difference in the frequency of the HSP70-2 PstI polymorphism between the patients who survived compared to those who died (P = 0.403, OR = 0.604, 95%CI: 0.184-1.986). CONCLUSION The A allele of the HSP70-2 PstI polymorphism was associated with enterocutaneous fistulas in this Chinese population.
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Ramakrishna K, Pugazhendhi S, Kabeerdoss J, Peter JV. Association between heat shock protein 70 gene polymorphisms and clinical outcomes in intensive care unit patients with sepsis. Indian J Crit Care Med 2014; 18:205-11. [PMID: 24872649 PMCID: PMC4033853 DOI: 10.4103/0972-5229.130571] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Objective: The objective of the following study is to evaluate the associations between single nucleotide polymorphisms (SNPs) in the Heat Shock Protein 70 (HSP70) gene, gene expression of interleukin-6 (IL-6) and tumor necrosis factor-alpha (TNF-α) and medical intensive care unit (MICU) stay and organ failure in sepsis. Materials and Methods: MICU patients with sepsis were genotyped for rs1061581, rs2227956, rs1008438 and rs1043618 polymorphisms in HSP70 gene using polymerase chain reaction (PCR)-restriction fragment length polymorphism analysis or allele-specific PCR. Messenger ribonucleic acid (mRNA) expression of IL-6 and TNF-α were quantitated in peripheral blood lymphocytes. Outcomes were recorded. Results: 108 patients (48 male) aged 40.7 ± 16.0 (mean ± standard deviation) years included H1N1 infection (36), scrub typhus (29) and urosepsis (12). Seventy-one (65.7%) had dysfunction of three or more organ systems, 66 patients (61.1%) were treated by mechanical ventilation, 21 (19.4%) needed dialysis. ICU stay was 9.3 ± 7.3 days. Mortality was 38.9%. One or more SNPs were noted in 101/108 (93.5%) and organ failure was noted in only 1/7 patients without a single SNP. The A allelotypes of rs1061581 and rs1008438 were associated with hematological dysfunction (P = 0.03 and 0.07) and longer ICU stay (P = 0.05 and 0.04), whereas IL-6 and TNF-α mRNA levels were associated with central nervous system dysfunction. Conclusions: HSP70 genotypes may determine some adverse outcomes in patients with sepsis.
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Affiliation(s)
- Kartik Ramakrishna
- Department of Intensive Care, Wellcome Trust Research Laboratory, Christian Medical College, Vellore, Tamil Nadu, India ; Department of Internal Medicine, Unity Health System, Rochester, NY 14626, USA ; Department of Gastrointestinal Sciences, Wellcome Trust Research Laboratory, Christian Medical College, Vellore, Tamil Nadu, India
| | - Srinivasan Pugazhendhi
- Department of Gastrointestinal Sciences, Wellcome Trust Research Laboratory, Christian Medical College, Vellore, Tamil Nadu, India
| | - Jayakanthan Kabeerdoss
- Department of Gastrointestinal Sciences, Wellcome Trust Research Laboratory, Christian Medical College, Vellore, Tamil Nadu, India
| | - John Victor Peter
- Department of Intensive Care, Wellcome Trust Research Laboratory, Christian Medical College, Vellore, Tamil Nadu, India
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Tahara T, Shibata T, Okubo M, Ishizuka T, Kawamura T, Yamashita H, Nakamura M, Nakagawa Y, Nagasaka M, Arisawa T, Ohmiya N, Hirata I. Heat-shock protein 70-2 BB genotype is associated with reduced risks of the steroid-dependent and refractory phenotypes of ulcerative colitis. Biomed Rep 2014; 2:555-558. [PMID: 24944807 DOI: 10.3892/br.2014.288] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2014] [Accepted: 05/16/2014] [Indexed: 01/03/2023] Open
Abstract
Previous studies have demonstrated the protective role of inducible heat-shock protein (HSP) 70 in intestinal cells. The HSP70-2 gene has a PstI site due to an A-G transition at the 1,267 position and different genotypes are associated with various levels of mRNA expression. The present study aimed to clarify the effect of the HSP70-2 polymorphism on the risk of ulcerative colitis (UC), including its clinical phenotypes. A total of 121 patients with UC and 500 healthy control (HC) subjects participated in the study. To assess the polymorphisms at the 1,267 position of the HSP70-2 gene, restriction fragment length polymorphism analysis was performed. The subjects in the study were classified by disease behavior, severity and extent of disease. Although no significant difference of the HSP70-2 genotype distribution was identified between the HC and UC groups, the BB genotype exhibited a lower risk of the steroid-dependent phenotype [odds ratio (OR), 0.12; 95% confidence interval (CI), 0.02-0.95; P=0.02]. The same genotype was also associated with a lower risk of the refractory phenotype (OR, 0.16; 95% CI, 0.04-0.73; P=0.01). There was no direct correlation between the polymorphism of the HSP70-2 gene and UC susceptibility. However, there was an association between a reduced risk of the steroid-dependent and refractory phenotypes of UC and the BB genotype.
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Affiliation(s)
- Tomomitsu Tahara
- Department of Gastroenterology, Fujita Health University School of Medicine, Toyoake, Aichi 470-1192, Japan
| | - Tomoyuki Shibata
- Department of Gastroenterology, Fujita Health University School of Medicine, Toyoake, Aichi 470-1192, Japan
| | - Masaaki Okubo
- Department of Gastroenterology, Fujita Health University School of Medicine, Toyoake, Aichi 470-1192, Japan
| | - Takamitsu Ishizuka
- Department of Gastroenterology, Fujita Health University School of Medicine, Toyoake, Aichi 470-1192, Japan
| | - Tomohiko Kawamura
- Department of Gastroenterology, Fujita Health University School of Medicine, Toyoake, Aichi 470-1192, Japan
| | - Hiromi Yamashita
- Department of Gastroenterology, Fujita Health University School of Medicine, Toyoake, Aichi 470-1192, Japan
| | - Masakatsu Nakamura
- Department of Gastroenterology, Kanzawa Medical University, Uchinada-machi, Ishikawa-ken 920-0292, Japan
| | - Yoshihito Nakagawa
- Department of Gastroenterology, Fujita Health University School of Medicine, Toyoake, Aichi 470-1192, Japan
| | - Mitsuo Nagasaka
- Department of Gastroenterology, Fujita Health University School of Medicine, Toyoake, Aichi 470-1192, Japan
| | - Tomiyasu Arisawa
- Department of Gastroenterology, Kanzawa Medical University, Uchinada-machi, Ishikawa-ken 920-0292, Japan
| | - Naoki Ohmiya
- Department of Gastroenterology, Fujita Health University School of Medicine, Toyoake, Aichi 470-1192, Japan
| | - Ichiro Hirata
- Department of Gastroenterology, Fujita Health University School of Medicine, Toyoake, Aichi 470-1192, Japan
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Heat Shock Proteins: Intestinal Gatekeepers that Are Influenced by Dietary Components and the Gut Microbiota. Pathogens 2014; 3:187-210. [PMID: 25437614 PMCID: PMC4235725 DOI: 10.3390/pathogens3010187] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2013] [Revised: 02/06/2014] [Accepted: 02/18/2014] [Indexed: 02/07/2023] Open
Abstract
Trillions of microorganisms that inhabit the intestinal tract form a diverse and intricate ecosystem with a deeply embedded symbiotic relationship with their hosts. As more detailed information on gut microbiota complexity and functional diversity accumulates, we are learning more about how diet-microbiota interactions can influence the immune system within and outside the gut and host health in general. Heat shock proteins are a set of highly conserved proteins that are present in all types of cells, from microbes to mammals. These proteins carry out crucial intracellular housekeeping functions and unexpected extracellular immuno-regulatory features in order to maintain the mucosal barrier integrity and gut homeostasis. It is becoming evident that the enteric microbiota is one of the major determinants of heat shock protein production in intestinal epithelial cells. This review will focus on the interactions between diet, gut microbiota and their role for regulating heat shock protein production and, furthermore, how these interactions influence the immune system and the integrity of the mucosal barrier.
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Collins CB, Aherne CM, Yeckes A, Pound K, Eltzschig HK, Jedlicka P, de Zoeten EF. Inhibition of N-terminal ATPase on HSP90 attenuates colitis through enhanced Treg function. Mucosal Immunol 2013; 6:960-71. [PMID: 23321985 PMCID: PMC3748235 DOI: 10.1038/mi.2012.134] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2012] [Accepted: 11/26/2012] [Indexed: 02/04/2023]
Abstract
Inflammatory bowel disease (IBD) is a chronic inflammatory condition thought to reflect a failure of the enteral immune system to adequately regulate itself. Inflammatory stress drives upregulation of heat-shock proteins (HSPs), including the pro-inflammatory chaperone, HSP90. This protein sequesters the transcription factor, heat-shock factor 1 (HSF1) in the cytoplasm preventing transcription of a number of anti-inflammatory proteins. We hypothesized that inhibition of HSP90 would exert an anti-inflammatory effect and thereby attenuate intestinal inflammation in murine models of IBD. Inhibition of HSP90 with 17-allylaminogeldanamycin (17-AAG) reduced inflammation in acute dextran sodium sulfate and chronic CD45RB(High) colitis models coinciding with increased interleukin (IL)-10 production in the colon. Regulatory T cells (Tregs) from mice treated with 17-AAG demonstrated significantly greater suppressive capacity in vitro abolished in HSF1-/- or IL-10-/- cells. Finally, Tregs treated with 17-AAG exhibited increased nuclear localization of HSF1 with resultant upregulation of HSF1 response genes, including HSP70, HSP90 and IL-10.
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Affiliation(s)
- Colm B. Collins
- Mucosal Inflammation Program, University of Colorado School of Medicine, Department of Pediatrics, Children's Hospital Colorado, Digestive Health Institute, Colorado 80045
| | - Carol M. Aherne
- University of Colorado School of Medicine, Department of Anesthesiology, Colorado 80045
| | - Alyson Yeckes
- Mucosal Inflammation Program, University of Colorado School of Medicine, Department of Pediatrics, Children's Hospital Colorado, Digestive Health Institute, Colorado 80045
| | - Kayla Pound
- Mucosal Inflammation Program, University of Colorado School of Medicine, Department of Pediatrics, Children's Hospital Colorado, Digestive Health Institute, Colorado 80045
| | - Holger K. Eltzschig
- University of Colorado School of Medicine, Department of Anesthesiology, Colorado 80045
| | - Paul Jedlicka
- University of Colorado School of Medicine, Department of Pathology, Colorado 80045
| | - Edwin F. de Zoeten
- Mucosal Inflammation Program, University of Colorado School of Medicine, Department of Pediatrics, Children's Hospital Colorado, Digestive Health Institute, Colorado 80045
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Gut microbiota imbalance and chaperoning system malfunction are central to ulcerative colitis pathogenesis and can be counteracted with specifically designed probiotics: a working hypothesis. Med Microbiol Immunol 2013; 202:393-406. [PMID: 23864544 DOI: 10.1007/s00430-013-0305-2] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2013] [Accepted: 06/29/2013] [Indexed: 12/19/2022]
Abstract
In this work, we propose that for further studies of the physiopathology and treatment for inflammatory bowel diseases, an integral view of the conditions, including the triad of microbiota-heat shock proteins (HSPs)-probiotics, ought to be considered. Microbiota is the complex microbial flora that resides in the gut, affecting not only gut functions but also the health status of the whole body. Alteration in the microbiota's composition has been implicated in a variety of pathological conditions (e.g., ulcerative colitis, UC), involving both gut and extra-intestinal tissues and organs. Some of these pathologies are also associated with an altered expression of HSPs (chaperones) and this is the reason why they may be considered chaperonopathies. Probiotics, which are live microorganisms able to restore the correct, healthy equilibrium of microbiota composition, can ameliorate symptoms in patients suffering from UC and modulate expression levels of HSPs. However, currently probiotic therapy follows ex-adiuvantibus criteria, i.e., treatments with beneficial effects but whose mechanism of action is unknown, which should be changed so the probiotics needed in each case are predetermined on the basis of the patient's microbiota. Consequently, efforts are necessary to develop diagnostic tools for elucidating levels and distribution of HSPs and the microbiota composition (microbiota fingerprint) of each subject and, thus, guide specific probiotic therapy, tailored to meet the needs of the patient. Microbiota fingerprinting ought to include molecular biology techniques for sequencing highly conserved DNA, e.g., genes encoding 16S RNA, for species identification and, in addition, quantification of each relevant microbe.
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Chen J, Ren J, Gu G, Wang G, Wu X, Yan D, Liu S, Li J. Crohn's disease and polymorphism of heat shock protein gene HSP70-2 in the Chinese population. J Gastroenterol Hepatol 2013; 28:814-8. [PMID: 23425104 DOI: 10.1111/jgh.12163] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 01/03/2013] [Indexed: 12/19/2022]
Abstract
BACKGROUND AND AIMS Crohn's disease (CD) is a multifactorial disorder with a pivotal role of the genetic component. A single nucleotide polymorphism in heat shock protein 70-2 (HSP70-2) has been shown to be associated with a severe clinical course in CD. The purpose of this study was to identify associations between the HSP70-2 polymorphism and the clinical courses of CD in the Chinese population. METHODS One hundred patients with CD and 190 healthy individuals were genotyped for the HSP70-2 PstI polymorphism by restriction fragment length polymorphism analysis. RESULTS The genotype frequency of the PstI polymorphism did not differ between patients and controls. The A allele was higher in CD patients than in controls (61% vs 52%, P = 0.047, odds ratio [OR] = 1.423, 95% confidence interval [CI]: 1.004-2.015). Furthermore, this polymorphism was higher in the penetrating or fistula surgery of CD patients than in controls (63% vs 52%, P = 0.049, OR = 1.530, 95% CI: 1.001-2.337; Table ). But there was no significant difference between the penetrating or fistula surgery patients and no surgery patients (P = 0.673, OR = 0.883, 95% CI: 0.495-1.574). We used multivariate analysis to determine the effects of genotypes on sex, disease behavior, disease location, and so on. No significant difference was observed between these parameters and genotype. CONCLUSION This study reported that the allele A of PstI polymorphism was the association between CD and HSP70-2 gene in the Chinese population. It was also association between penetrating or fistula surgery of CD and HSP70-2 gene in the Chinese population.
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Affiliation(s)
- Jun Chen
- The Research Institute of General Surgery, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, Jiangsu Province, China
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Umapathy D, Krishnamoorthy E, Muthukumaran P, Rajaram R, Padmalayam I, Viswanathan V. Association ofA1538GandC2437TSingle Nucleotide Polymorphisms in Heat Shock Protein 70 Genes with Type 2 Diabetes. Lab Med 2012. [DOI: 10.1309/lm1le9tngijfd7ps] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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Ng SC, Tsoi KKF, Kamm MA, Xia B, Wu J, Chan FKL, Sung JJY. Genetics of inflammatory bowel disease in Asia: systematic review and meta-analysis. Inflamm Bowel Dis 2012; 18:1164-76. [PMID: 21887729 DOI: 10.1002/ibd.21845] [Citation(s) in RCA: 137] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2011] [Accepted: 06/30/2011] [Indexed: 12/12/2022]
Abstract
BACKGROUND Inflammatory bowel diseases (IBD) result from an interaction between genetic and environmental factors. Preliminary findings suggest that susceptibility genes differ between IBD patients in Asia and the West. We aimed to evaluate disease-predisposing genes in Asian IBD patients. METHODS A systematic review and meta-analysis were performed of published studies from 1950 to 2010 using keyword searches in MEDLINE, EMBASE, EBM Reviews, and BIOSIS Previews. RESULTS In all, 477 abstracts were identified and data extracted from 93 studies, comprising 17,976 IBD patients and 27,350 age- and sex-matched controls. Major nucleotide oligomerization domain (NOD)-2 variants in Western Crohn's disease (CD) patients were not associated with CD in Han Chinese, Japanese, South Korean, Indian, and Malaysian populations. New NOD2 mutations were, however, associated with CD in Malaysians (JW1), Han Chinese, and Indians (P268S). Autophagy-related protein 16-linked 1 (ATG16L1) was not associated with CD in East Asians (odds ratio [OR] 0.97; 95% confidence interval [CI] 0.84-1.13). Interleukin (IL)-23R was associated with CD in South Koreans (OR 1.8; 95% CI 1.16-2.82) and a single nucleotide polymorphism in IL-23R (Gly149Arg) was protective of CD in Han Chinese (OR 0.3; 95% CI 0.15-0.60). Tumor necrosis factor (TNF) superfamily gene-15 (SF15) polymorphisms were associated with CD (OR 2.68; 95% CI 1.86-3.86), while TNF-308 polymorphisms (OR 1.82; 95% CI 1.15-2.9), cytotoxic T lymphocyte antigen (CTLA)-4 (OR 2.75; 95% CI 1.22-6.22) and MICA allele (OR 2.41; 95% CI 1.89-3.07) were associated with ulcerative colitis in Asians. CONCLUSIONS Genetic mutations of IBD in Asians differ from Caucasians. New mutations and susceptibility genes identified in Asian IBD patients provide an opportunity to explore new disease-associated mechanisms in this population of rising incidence.
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Affiliation(s)
- Siew C Ng
- Institute of Digestive Disease, Chinese University of Hong Kong, Hong Kong.
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Bergeron V, Grondin V, Rajca S, Maubert MA, Pigneur B, Thomas G, Trugnan G, Beaugerie L, Cosnes J, Masliah J, Sokol H, Seksik P, Bachelet M. Current smoking differentially affects blood mononuclear cells from patients with Crohn's disease and ulcerative colitis: relevance to its adverse role in the disease. Inflamm Bowel Dis 2012; 18:1101-11. [PMID: 21987436 DOI: 10.1002/ibd.21889] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/26/2011] [Accepted: 08/12/2011] [Indexed: 01/08/2023]
Abstract
BACKGROUND Epidemiologic data suggest that smoking increases the risk and the severity of Crohn's disease (CD), although it may protect patients with ulcerative colitis (UC). To investigate this paradox, we evaluated the effect of cigarette smoke in the function of blood mononuclear cells from healthy subjects and patients with CD or UC in flare up. METHODS The production of mediators associated with inflammation but also with protective functions was evaluated by enzyme-linked immunosorbent assay (ELISA) and enzyme immunoassay (EIA), following either in vivo or in vitro exposure to cigarette smoke. RESULTS We found that mononuclear cells from smokers with CD were functionally impaired. These cells secreted lower levels of chemokines and cytokines as compared with nonsmoker counterparts, whereas healthy smokers or smokers with UC were not affected. Similar findings were noted after in vitro exposure to cigarette smoke extract. In addition, cells from patients with CD who smoke presented a defective sensitivity to antiinflammatory or antioxidant protection, and particularly synthesized lower levels of cytoprotective Hsp70. The effects observed were not due to diminished cell viability. Our experiments suggest that cigarette smoke-related responses were largely dependent on oxidative stress generated, and not on the nicotine component. CONCLUSIONS Overall, our data point out the presence of biological differences between blood mononuclear cells from patients with CD and UC toward cigarette smoke that might support its opposite role in both diseases.
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Tsianos EV, Katsanos KH, Tsianos VE. Role of genetics in the diagnosis and prognosis of Crohn's disease. World J Gastroenterol 2012; 18:105-18. [PMID: 22253516 PMCID: PMC3257437 DOI: 10.3748/wjg.v18.i2.105] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2011] [Revised: 04/25/2011] [Accepted: 05/02/2011] [Indexed: 02/06/2023] Open
Abstract
Considering epidemiological, genetic and immunological data, we can conclude that the inflammatory bowel diseases are heterogeneous disorders of multifactorial etiology in which hereditability and environment interact to produce the disease. It is probable that patients have a genetic predisposition for the development of the disease coupled with disturbances in immunoregulation. Several genes have been so far related to the diagnosis of Crohn's disease. Those genes are related to innate pattern recognition receptors, to epithelial barrier homeostasis and maintenance of epithelial barrier integrity, to autophagy and to lymphocyte differentiation. So far, the most strong and replicated associations with Crohn's disease have been done with NOD2, IL23R and ATG16L1 genes. Many genes have so far been implicated in prognosis of Crohn's disease and many attempts have been made to classify genetic profiles in Crohn's disease. CARD15 seems not only a susceptibility gene, but also a disease-modifier gene for Crohn's disease. Enriching our understanding on Crohn's disease genetics is important but when combining genetic data with functional data the outcome could be of major importance to clinicians.
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Tsianos EV, Katsanos KH, Tsianos VE. Role of genetics in the diagnosis and prognosis of Crohn's disease. World J Gastroenterol 2011; 17:5246-59. [PMID: 22219593 PMCID: PMC3247688 DOI: 10.3748/wjg.v17.i48.5246] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2011] [Revised: 06/15/2011] [Accepted: 06/22/2011] [Indexed: 02/06/2023] Open
Abstract
Considering the epidemiological, genetic and immunological data, we can conclude that the inflammatory bowel diseases are heterogeneous disorders of multifactorial etiology in which hereditability and environment interact to produce the disease. It is probable that patients have a genetic predisposition for the development of the disease coupled with disturbances in immunoregulation. Several genes have so far been related to the diagnosis of Crohn's disease. These genes are related to innate pattern recognition receptors, to epithelial barrier homeostasis and maintenance of epithelial barrier integrity, to autophagy and to lymphocyte differentiation. So far, the strongest and most replicated associations with Crohn's disease have been demonstrated with NOD2, IL23R and ATG16L1 genes. Many genes have so far been implicated in the prognosis of Crohn's disease and many attempts have been made for classification of genetic profiles in Crohn's disease. CARD15 seems to be not only a susceptibility gene, but also a disease-modifier gene for Crohn's disease. Enriching our understanding of Crohn's disease genetics is of value, but when combining genetic data with functional data the outcome could be of major importance to clinicians.
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Tomasello G, Sciumé C, Rappa F, Rodolico V, Zerilli M, Martorana A, Cicero G, De Luca R, Damiani P, Accardo FM, Romeo M, Farina F, Bonaventura G, Modica G, Zummo G, Conway de Macario E, Macario AJL, Cappello F. Hsp10, Hsp70, and Hsp90 immunohistochemical levels change in ulcerative colitis after therapy. Eur J Histochem 2011; 55:e38. [PMID: 22297444 PMCID: PMC3284240 DOI: 10.4081/ejh.2011.e38] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2011] [Revised: 10/17/2011] [Accepted: 10/17/2011] [Indexed: 01/11/2023] Open
Abstract
Ulcerative colitis (UC) is a form of inflammatory bowel disease (IBD) characterized by damage of large bowel mucosa and frequent extra-intestinal autoimmune comorbidities. The role played in IBD pathogenesis by molecular chaperones known to interact with components of the immune system involved in inflammation is unclear. We previously demonstrated that mucosal Hsp60 decreases in UC patients treated with conventional therapies (mesalazine, probiotics), suggesting that this chaperonin could be a reliable biomarker useful for monitoring response to treatment, and that it might play a role in pathogenesis. In the present work we investigated three other heat shock protein/molecular chaperones: Hsp10, Hsp70, and Hsp90. We found that the levels of these proteins are increased in UC patients at the time of diagnosis and decrease after therapy, supporting the notion that these proteins deserve attention in the study of the mechanisms that promote the development and maintenance of IBD, and as biomarkers of this disease (e.g., to monitor response to treatment at the histological level).
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Affiliation(s)
- G Tomasello
- Dipartimento di Discipline Chirurgiche ed Oncologiche, Università di Palermo, Italy
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Chromatin immunoprecipitation and association study revealed a possible role of Runt-related transcription factor 3 in the ulcerative colitis of Chinese population. Clin Immunol 2010; 135:483-9. [PMID: 20392673 DOI: 10.1016/j.clim.2010.01.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2009] [Revised: 01/11/2010] [Accepted: 01/12/2010] [Indexed: 01/06/2023]
Abstract
RUNX3 was recently found to be associated with ulcerative colitis. In this study, downstream target genes of RUNX3 were identified by chromatin immunoprecipitation and promoter sequence microarray chips. Polymorphisms of RUNX3 and its 2 putative downstream (OCTN1 and PPAR-gamma) target genes were genotyped by PCR-SSP and sequencing in 144 Chinese UC patients and 151 healthy controls. Expression of RUNX3 in colonic mucosa of UC patients was detected by immunohistochemical staining. Twelve genes involved in IBD were identified as the downstream target genes of RUNX3. The RUNX3 rs2236851 CT genotype was associated significantly with UC susceptibility and risk of early onset in Chinese population. No association of OCTN1 and PPAR-gamma with UC susceptibility or subphenotypes was identified. RUNX3 expression was significantly increased in UC mucosa. Therefore, RUNX3 might be involved in UC pathogenesis by regulating the expression of genes related with immune response.
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Ooi CJ, Fock KM, Makharia GK, Goh KL, Ling KL, Hilmi I, Lim WC, Kelvin T, Gibson PR, Gearry RB, Ouyang Q, Sollano J, Manatsathit S, Rerknimitr R, Wei SC, Leung WK, de Silva HJ, Leong RW. The Asia-Pacific consensus on ulcerative colitis. J Gastroenterol Hepatol 2010; 25:453-68. [PMID: 20370724 DOI: 10.1111/j.1440-1746.2010.06241.x] [Citation(s) in RCA: 122] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Inflammatory bowel disease (IBD) is increasing in many parts of the Asia-Pacific region. There is a need to improve the awareness of IBD and develop diagnostic and management recommendations relevant to the region. This evidence-based consensus focuses on the definition, epidemiology and management of ulcerative colitis (UC) in Asia. A multi-disciplinary group developed the consensus statements, reviewed the relevant literature, and voted on them anonymously using the Delphi method. The finalized statements were reviewed to determine the level of consensus, evidence quality and strength of recommendation. Infectious colitis must be excluded prior to diagnosing UC. Typical histology and macroscopic extent of the disease seen in the West is found in the Asia-Pacific region. Ulcerative colitis is increasing in many parts of Asia with gender distribution and age of diagnosis similar to the West. Extra-intestinal manifestations including primary sclerosing cholangitis are rarer than in the West. Clinical stratification of disease severity guides management. In Japan, leukocytapheresis is a treatment option. Access to biologic agents remains limited due to high cost and concern over opportunistic infections. The high endemic rates of hepatitis B virus infection require stringent screening before initiating immune-suppressive agents. Vaccination and prophylactic therapies should be initiated on a case-by-case basis and in accordance with local practice. Colorectal cancer complicates chronic colitis. A recent increase in UC is reported in the Asia-Pacific region. These consensus statements aim to improve the recognition of UC and assist clinicians in its management with particular relevance to the region.
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Affiliation(s)
- Choon Jin Ooi
- Department of Gastroenterology and Hepatology, Duke-NUS Graduate Medical School and Singapore General Hospital, Singapore.
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De Zoeten EF, Wang L, Sai H, Dillmann WH, Hancock WW. Inhibition of HDAC9 increases T regulatory cell function and prevents colitis in mice. Gastroenterology 2010; 138:583-94. [PMID: 19879272 PMCID: PMC3369426 DOI: 10.1053/j.gastro.2009.10.037] [Citation(s) in RCA: 193] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2009] [Revised: 10/09/2009] [Accepted: 10/20/2009] [Indexed: 12/21/2022]
Abstract
BACKGROUND & AIMS Foxp3+ T regulatory cells (Tregs) help prevent autoimmunity, and increases in their numbers of functions could decrease the development of inflammatory bowel disease. Like other cells, Foxp3+ Tregs express histone/protein deacetylases (HDACs), which regulate chromatin remodeling and gene expression. We investigated whether disruption of a specific class IIa HDAC, HDAC9, activity in Tregs affects the pathogenesis of colitis in mice. METHODS We tested the effects of various HDAC inhibitors (HDACi) in models of colitis using wild-type mice. We also transferred Tregs and non-Treg cells from HDAC9-/- or wild-type mice to immunodeficient mice. HDAC9 contributions to the functions of Tregs were determined during development and progression of colitis. RESULTS Pan-HDACi, but not class I-specific HDACi, increased the functions of Foxp3+ Tregs, prevented colitis, and reduced established colitis in mice, indicating the role of class II HDACs in controlling Treg function. The abilities of pan-HDACi to prevent/reduce colitis were associated with increased numbers of Foxp3+ Tregs and their suppressive functions. Colitis was associated with increased local expression of HDAC9; HDAC9-/- mice resistant to development of colitis. HDAC9-/- Tregs expressed increased levels of the heat shock protein (HSP) 70, compared with controls. Immunoprecipitation experiments indicated an interaction between HSP70 and Foxp3. Inhibition of HSP70 reduced the suppressive functions of HDAC9-/- Tregs; Tregs that overexpressed HSP70 had increased suppressive functions. CONCLUSIONS Strategies to decrease HDAC9 expression or function in Tregs or to increase expression of HSP70 might be used to treat colitis and other autoimmune disorders.
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Affiliation(s)
- Edwin F. De Zoeten
- Division of Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, Children’s Hospital of Philadelphia and University of Pennsylvania, Philadelphia, Pennsylvania
| | - Liqing Wang
- Division of Transplantation Immunology, Department of Pathology and Laboratory Medicine, and Biesecker Center for Pediatric Liver Diseases, Children’s Hospital of Philadelphia and University of Pennsylvania, Philadelphia, Pennsylvania
| | - Hong Sai
- Division of Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, Children’s Hospital of Philadelphia and University of Pennsylvania, Philadelphia, Pennsylvania
| | - Wolfgang H. Dillmann
- Division of Endocrinology/Metabolism, University of California, San Diego, La Jolla, California
| | - Wayne W. Hancock
- Division of Transplantation Immunology, Department of Pathology and Laboratory Medicine, and Biesecker Center for Pediatric Liver Diseases, Children’s Hospital of Philadelphia and University of Pennsylvania, Philadelphia, Pennsylvania
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Wu T, Ji G. Abnormal glucose, lipid and protein metabolism in patients with Crohn's disease. Shijie Huaren Xiaohua Zazhi 2010; 18:160-168. [DOI: 10.11569/wcjd.v18.i2.160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Inflammatory bowel disease (IBD), consisting of Crohn's disease (CD) and ulcerative colitis (UC), poses a great threat to human health. It results from an inappropriate immune response, in genetically susceptible individuals, to microbial antigens of commensal microorganisms. This paper reviews abnormal glucose, lipid and protein metabolism in patients with CD and highlights the application of metabonomics in biomarker revelation for CD.
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Zhao C, Zhang SH, Wu HG, Cui YH, Zhou CL. Advances in research on gene polymorphisms in ulcerative colitis. Shijie Huaren Xiaohua Zazhi 2009; 17:3711-3714. [DOI: 10.11569/wcjd.v17.i36.3711] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
The morbidity of ulcerative colitis is associated with gene polymorphisms. Genome-wide association studies have identified many ulcerative colitis-predisposing genes. In this article, we will review the recent advances in research on gene polymorphisms in ulcerative colitis by providing an overview of high-frequency predisposing genes and new predisposing genes for ulcerative colitis.
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Heat-shock protein gene polymorphisms and the risk of nephropathy in patients with Type 2 diabetes. Clin Sci (Lond) 2009; 116:81-6. [PMID: 18518860 DOI: 10.1042/cs20070411] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
HSPs (heat-shock proteins) are molecular chaperones synthesized under stress conditions, and are involved in renal cell survival and matrix remodelling in acute and chronic renal diseases. In the present study, we investigated whether the HSP70 gene polymorphisms affect susceptibility to DN (diabetic nephropathy) in patients with T2DM (Type 2 diabetes mellitus). The study group consisted of 452 patients with nephropathy. Two control subgroups involved 340 healthy individuals and 132 patients with T2DM lasting > or =10 years who were free of nephropathy. Subjects were genotyped for the HSP70-1 +190 G/C and -110 A/C, HSP70-2 +1267 A/G and HSP70-hom +2437 T/C polymorphisms by PCR, followed by digestion with restriction endonucleases. There were no statistically significant differences in genotype distribution between patients with T2DM with DN and controls for the HSP70-hom polymorphism. Significant differences were observed for HSP70-1 and HSP70-2 polymorphisms. CC homozygotes of the -110 and +190 HSP70-1 polymorphisms were more frequent in patients with T2DM with DN compared with healthy controls (22 compared with 6% and 15 compared with 6.5% respectively; P<0.01). The OR (odds ratio) for the risk allele was 2.17 [95% CI (confidence interval), 1.73-2.72] for the -110 A/C and 1.74 (95% CI, 1.40-2.15) for +190 G/C polymorphisms. A strong association with DN was found for the +1267 HSP70-2 polymorphism. The GG genotype and the G allele were associated with DN, with the OR for the G allele being 4.77 (95% CI, 3.81-5.96). All GG homozygotes in the patient group had higher LDL (low-density lipoprotein)-cholesterol levels than AA homozygotes (P<0.01), suggesting that the observed effect might be associated with this cardiovascular risk factor. These patients progressed faster to end-stage renal failure than those with other genotypes. In conclusion, our results indicate that the HSP70-1 and HSP70-2 polymorphisms are associated with renal complications in T2DM and may be useful in identifying patients with increased risk of DN.
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Tao Y, Hart J, Lichtenstein L, Joseph LJ, Ciancio MJ, Hu S, Chang EB, Bissonnette M. Inducible heat shock protein 70 prevents multifocal flat dysplastic lesions and invasive tumors in an inflammatory model of colon cancer. Carcinogenesis 2008; 30:175-82. [PMID: 19005184 DOI: 10.1093/carcin/bgn256] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Heat shock protein 70 (Hsp70) regulates protein biosynthesis and refolding of denatured proteins. Since Hsp70 participates in recovery from stress injury, we examined the effect of Hsp70 genetic deletion in the azoxymethane (AOM)/dextran sulfate sodium (DSS) model of inflammation and colon cancer. METHODS Hsp70 mutant mice (Hsp70.1(-/-)/70.3(-/-)) and wild-type (WT) littermates received AOM and three cycles of DSS and were killed 24 weeks later. Tumors were graded for histology and immunostained for p53, adenomatous polyposis coli, beta-catenin, cyclooxygenase-2 (Cox-2) and inducible nitric oxide synthase (iNOS) and sequenced for p53 mutations. RESULTS Elevated adenomas developed in 4/10 WT mice with no dysplasia in adjacent mucosa. In contrast, 7/8 Hsp70 knock out (KO) mice developed chronic mucosal inflammation and multifocal areas of flat dysplasia and 4/8 progressed to invasive carcinomas arising in a background of flat dysplastic mucosa. These differences in the incidence of flat dysplasia and invasive cancers were significant (P < 0.05). Nuclear p53 was stronger in Hsp70 KO tumors compared with WT tumors, and sequencing confirmed p53 mutations in 2/5 tumors from Hsp70(-/-) versus 0/5 in WT mice. In Hsp70 WT tumors, beta-catenin was predominantly nuclear, compared with membranous beta-catenin in Hsp70(-/-) tumors, suggesting that Hsp70 regulates beta-catenin in colonic tumorigenesis. Cox-2 and iNOS levels were increased in tumors from Hsp70(-/-) mice compared with Hsp70 WT tumors. CONCLUSIONS Hsp70-deleted mice treated with AOM/DSS develop flat invasive colonic tumors that mimic many histological and molecular features of ulcerative colitis colon cancer. This model will be useful to dissect the role of Hsp70 in inflammatory bowel disease colon cancer.
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Affiliation(s)
- Yun Tao
- Department of Medicine, University of Chicago, Chicago, IL 60637, USA
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Ciancio MJ, Chang EB. Do heat shock proteins play any role in gut inflammation? Inflamm Bowel Dis 2008; 14 Suppl 2:S102-3. [PMID: 18816666 DOI: 10.1002/ibd.20697] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Mae J Ciancio
- Department of Medicine, University of Chicago, Illinois, USA
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