1
|
de Souza Goncalves B, Sangani D, Nayyar A, Puri R, Irtiza M, Nayyar A, Khalyfa A, Sodhi K, Pillai SS. COVID-19-Associated Sepsis: Potential Role of Phytochemicals as Functional Foods and Nutraceuticals. Int J Mol Sci 2024; 25:8481. [PMID: 39126050 PMCID: PMC11312872 DOI: 10.3390/ijms25158481] [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: 07/08/2024] [Revised: 07/30/2024] [Accepted: 08/01/2024] [Indexed: 08/12/2024] Open
Abstract
The acute manifestations of coronavirus disease 2019 (COVID-19) exhibit the hallmarks of sepsis-associated complications that reflect multiple organ failure. The inflammatory cytokine storm accompanied by an imbalance in the pro-inflammatory and anti-inflammatory host response to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection leads to severe and critical septic shock. The sepsis signature in severely afflicted COVID-19 patients includes cellular reprogramming and organ dysfunction that leads to high mortality rates, emphasizing the importance of improved clinical care and advanced therapeutic interventions for sepsis associated with COVID-19. Phytochemicals of functional foods and nutraceutical importance have an incredible impact on the healthcare system, which includes the prevention and/or treatment of chronic diseases. Hence, in the present review, we aim to explore the pathogenesis of sepsis associated with COVID-19 that disrupts the physiological homeostasis of the body, resulting in severe organ damage. Furthermore, we have summarized the diverse pharmacological properties of some potent phytochemicals, which can be used as functional foods as well as nutraceuticals against sepsis-associated complications of SARS-CoV-2 infection. The phytochemicals explored in this article include quercetin, curcumin, luteolin, apigenin, resveratrol, and naringenin, which are the major phytoconstituents of our daily food intake. We have compiled the findings from various studies, including clinical trials in humans, to explore more into the therapeutic potential of each phytochemical against sepsis and COVID-19, which highlights their possible importance in sepsis-associated COVID-19 pathogenesis. We conclude that our review will open a new research avenue for exploring phytochemical-derived therapeutic agents for preventing or treating the life-threatening complications of sepsis associated with COVID-19.
Collapse
Affiliation(s)
- Bruno de Souza Goncalves
- Department of Surgery, Internal Medicine and Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV 25701, USA; (B.d.S.G.); (D.S.); (R.P.); (M.I.); (A.N.); (A.K.); (K.S.)
| | - Darshan Sangani
- Department of Surgery, Internal Medicine and Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV 25701, USA; (B.d.S.G.); (D.S.); (R.P.); (M.I.); (A.N.); (A.K.); (K.S.)
| | - Aleen Nayyar
- Department of Medicine, Sharif Medical and Dental College, Lahore 55150, Pakistan;
| | - Raghav Puri
- Department of Surgery, Internal Medicine and Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV 25701, USA; (B.d.S.G.); (D.S.); (R.P.); (M.I.); (A.N.); (A.K.); (K.S.)
| | - Mahir Irtiza
- Department of Surgery, Internal Medicine and Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV 25701, USA; (B.d.S.G.); (D.S.); (R.P.); (M.I.); (A.N.); (A.K.); (K.S.)
| | - Asma Nayyar
- Department of Surgery, Internal Medicine and Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV 25701, USA; (B.d.S.G.); (D.S.); (R.P.); (M.I.); (A.N.); (A.K.); (K.S.)
| | - Abdelnaby Khalyfa
- Department of Surgery, Internal Medicine and Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV 25701, USA; (B.d.S.G.); (D.S.); (R.P.); (M.I.); (A.N.); (A.K.); (K.S.)
| | - Komal Sodhi
- Department of Surgery, Internal Medicine and Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV 25701, USA; (B.d.S.G.); (D.S.); (R.P.); (M.I.); (A.N.); (A.K.); (K.S.)
| | - Sneha S. Pillai
- Department of Surgery, Internal Medicine and Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV 25701, USA; (B.d.S.G.); (D.S.); (R.P.); (M.I.); (A.N.); (A.K.); (K.S.)
| |
Collapse
|
2
|
Iraji Asiabadi A, Esmaeil N, Zargar Kharazi A, Dabiri A, Varshosaz J. Harnessing IL-10 induced anti-inflammatory response in maturing macrophages in presence of electrospun dexamethasone-loaded PLLA scaffold. J Biomed Mater Res B Appl Biomater 2024; 112:e35411. [PMID: 38773758 DOI: 10.1002/jbm.b.35411] [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: 08/28/2023] [Revised: 03/19/2024] [Accepted: 04/13/2024] [Indexed: 05/24/2024]
Abstract
The ultimate goal of tissue engineering is to repair and regenerate damaged tissue or organ. Achieving this goal requires blood vessel networks to supply oxygen and nutrients to new forming tissues. Macrophages are part of the immune system whose behavior plays a significant role in angiogenesis and blood vessel formation. On the other hand, macrophages are versatile cells that change their behavior in response to environmental stimuli. Given that implantation of a biomaterial is followed by inflammation; therefore, we reasoned that this inflammatory condition in tissue spaces modulates the final phenotype of macrophages. Also, we hypothesized that anti-inflammatory glucocorticoid dexamethasone improves modulating macrophages behavior. To check these concepts, we investigated the macrophages that had matured in an inflammatory media. Furthermore, we examined macrophages' behavior after maturation on a dexamethasone-containing scaffold and analyzed how the behavioral change of maturing macrophages stimulates other macrophages in the same environment. In this study, the expression of pro-inflammatory markers TNFa and NFκB1 along with pro-healing markers IL-10 and CD163 were investigated to study the behavior of macrophages. Our results showed that macrophages that were matured in the inflammatory media in vitro increase expression of IL-10, which in turn decreased the expression of pro-inflammatory markers TNFa and NFκB in maturing macrophages. Also, macrophages that were matured on dexamethasone-containing scaffolds decreased the expression of IL-10, TNFa, and NFκB and increase the expression of CD163 compared to the control group. Moreover, the modulation of anti-inflammatory response in maturing macrophages on dexamethasone-containing scaffold resulted in increased expression of TNFa and CD163 by other macrophages in the same media. The results obtained in this study, proposing strategies to improve healing through controlling the behavior of maturing macrophages and present a promising perspective for inflammation control using tissue engineering scaffolds.
Collapse
Affiliation(s)
- Arash Iraji Asiabadi
- Tissue Engineering and Nanotechnology, School of Advanced Technologies in Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Nafiseh Esmaeil
- Department of Immunology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Anousheh Zargar Kharazi
- Tissue Engineering and Nanotechnology, School of Advanced Technologies in Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
- Applied Physiology Research Center, Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Arezou Dabiri
- Isfahan Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Jaleh Varshosaz
- Department of Pharmaceutics, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran
| |
Collapse
|
3
|
Han B, Choukér A, Moser D. Differential effects of acute and chronic hydrocortisone treatment on pyroptosis. Heliyon 2024; 10:e31156. [PMID: 38784563 PMCID: PMC11112316 DOI: 10.1016/j.heliyon.2024.e31156] [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: 10/31/2023] [Revised: 05/10/2024] [Accepted: 05/10/2024] [Indexed: 05/25/2024] Open
Abstract
Pyroptosis is a programmed and inflammation-inducing cell death that occurs predominantly in macrophages. It is characterized by the inflammasome-mediated activation of caspase-1, leading to cell lysis. During pyroptosis, pro-inflammatory mediators such as IL-1β are released extracellularly to further recruit and activate other immune cells. Thus, pyroptosis plays a crucial role in the prevention of the spread of pathogens. The clinically applied synthetic glucocorticoid, hydrocortisone (HC), has strong immunoregulatory properties. It may act as an immunosuppressive agent by negatively regulating pro-inflammatory gene transcription but has also shown immune-sensitizing properties. The conditions that determine the immunosuppressive or immune-sensitizing actions of HC during an infection are not fully clear. We hypothesized that the outcome may differ depending on the onset and duration of its administration. Therefore, we investigated the impact of acute (treatment upon infection) and chronic (24 h pre-treatment before infection) HC treatment on pyroptosis induction and execution in THP-1 macrophage-like cells. The focus was on pyroptosis-associated signaling pathways, inflammasome assembly and activation, IL-1β, and cell death. Physiological HC concentration and HC deprivation were used as controls. Compared to the physiological concentration, cells displayed augmented inflammasome activation and IL-1β release following acute HC treatment. Conversely, the whole pyroptosis machinery was suppressed by chronic HC administration. These in vitro investigations demonstrate pro-inflammatory actions of acute HC exposure and the immunosuppressive effects of chronic treatment. These differential effects on pyroptosis emphasize the importance of individualized HC medication in patients upon infection, and suggest the inclusion of IL-1β as a marker for current immune capacities.
Collapse
Affiliation(s)
- Bing Han
- Laboratory of Translational Research ‘Stress and Immunity’, Department of Anesthesiology, LMU Hospital, Ludwig-Maximilians-Universität in Munich, Germany
| | - Alexander Choukér
- Laboratory of Translational Research ‘Stress and Immunity’, Department of Anesthesiology, LMU Hospital, Ludwig-Maximilians-Universität in Munich, Germany
| | - Dominique Moser
- Laboratory of Translational Research ‘Stress and Immunity’, Department of Anesthesiology, LMU Hospital, Ludwig-Maximilians-Universität in Munich, Germany
| |
Collapse
|
4
|
Jia S, Liang R, Chen J, Liao S, Lin J, Li W. Emerging technology has a brilliant future: the CRISPR-Cas system for senescence, inflammation, and cartilage repair in osteoarthritis. Cell Mol Biol Lett 2024; 29:64. [PMID: 38698311 PMCID: PMC11067114 DOI: 10.1186/s11658-024-00581-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Accepted: 04/19/2024] [Indexed: 05/05/2024] Open
Abstract
Osteoarthritis (OA), known as one of the most common types of aseptic inflammation of the musculoskeletal system, is characterized by chronic pain and whole-joint lesions. With cellular and molecular changes including senescence, inflammatory alterations, and subsequent cartilage defects, OA eventually leads to a series of adverse outcomes such as pain and disability. CRISPR-Cas-related technology has been proposed and explored as a gene therapy, offering potential gene-editing tools that are in the spotlight. Considering the genetic and multigene regulatory mechanisms of OA, we systematically review current studies on CRISPR-Cas technology for improving OA in terms of senescence, inflammation, and cartilage damage and summarize various strategies for delivering CRISPR products, hoping to provide a new perspective for the treatment of OA by taking advantage of CRISPR technology.
Collapse
Affiliation(s)
- Shicheng Jia
- Department of Sports Medicine and Rehabilitation, Peking University Shenzhen Hospital, Shenzhen, 518036, China
- Shantou University Medical College, Shantou, 515041, China
| | - Rongji Liang
- Shantou University Medical College, Shantou, 515041, China
| | - Jiayou Chen
- Department of Sports Medicine and Rehabilitation, Peking University Shenzhen Hospital, Shenzhen, 518036, China
- Shantou University Medical College, Shantou, 515041, China
| | - Shuai Liao
- Department of Bone and Joint, Peking University Shenzhen Hospital, Shenzhen, 518036, China
- Shenzhen University School of Medicine, Shenzhen, 518060, China
| | - Jianjing Lin
- Department of Sports Medicine and Rehabilitation, Peking University Shenzhen Hospital, Shenzhen, 518036, China.
| | - Wei Li
- Department of Sports Medicine and Rehabilitation, Peking University Shenzhen Hospital, Shenzhen, 518036, China.
| |
Collapse
|
5
|
Bhattacharyya T, Mishra T, Das D, Adhikari SS, Banerjee R. Bis-arylidene oxindoles for colorectal cancer nanotherapy. Bioorg Chem 2024; 146:107294. [PMID: 38507997 DOI: 10.1016/j.bioorg.2024.107294] [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: 10/12/2023] [Revised: 03/08/2024] [Accepted: 03/15/2024] [Indexed: 03/22/2024]
Abstract
Oxindoles are potent anti-cancer agents and are also used against microbial and fungal infections and for treating neurodegenerative diseases. These oxindoles are earlier established as estrogen receptor (ER)-targeted agents for killing ER (+) cancer cells. Our previously developed bis-arylidene oxindole, Oxifen (OXF) exhibits effective targeting towards ER (+) cancer cells which has a structural resemblance with tamoxifen. Herein, we have designed and synthesized few structural analogues of OXF such as BPYOX, ACPOX and ACPOXF to examine its cytotoxicity in different cancer as well as non-cancer cell lines and its potential to form self- aggregates in aqueous solution. Among these series of molecules, ACPOXF showed maximum toxicity in colorectal cancer cell line which are ER (-) but it also kills non-cancer cell line HEK-293, thereby reducing its cancer cell selectivity. Incidentally, ACPOXF exhibits self-aggregation, without the help of a co-lipid with nanometric size in aqueous solution. ACPOXF self-aggregate was co-formulated with glucocorticoid receptor (GR) synthetic ligand, dexamethasone (Dex) (called, ACPOXF-Dex aggregate) which could selectively kill ER (-) colorectal cancer cells and also could increase survivability of colon-tumour bearing mice. ACPOXF-Dex induced ROS up-regulation followed by apoptosis through expression of caspase-3. Further, we observed upregulation of antiproliferative factor, p53 and epithelial-to-mesenchymal (EMT) reversal marker E-cadherin in tumour mass. In conclusion, a typical structural modification in ER-targeting Oxifen moiety resulted in its self-aggregation that enabled it to carry a GR-ligand, thus broadening its selective antitumor property especially as colon cancer therapeutics.
Collapse
Affiliation(s)
- Tithi Bhattacharyya
- Division of Oils, Lipid Science & Technology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India; Academy of Scientific and Innovative Research (AcSIR), CSIR-HRDC Campus, Ghaziabad 201002, India.
| | - Tanushree Mishra
- Department of Chemistry, University of Calcutta, Kolkata 700073, India.
| | - Debojyoti Das
- Department of Chemistry, University of Calcutta, Kolkata 700073, India.
| | | | - Rajkumar Banerjee
- Division of Oils, Lipid Science & Technology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India; Academy of Scientific and Innovative Research (AcSIR), CSIR-HRDC Campus, Ghaziabad 201002, India.
| |
Collapse
|
6
|
Oliver T, Nguyen NY, Tully CB, McCormack NM, Sun CM, Fiorillo AA, Heier CR. The glucocorticoid receptor acts locally to protect dystrophic muscle and heart during disease. Dis Model Mech 2024; 17:dmm050397. [PMID: 38770680 PMCID: PMC11139035 DOI: 10.1242/dmm.050397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Accepted: 03/28/2024] [Indexed: 05/22/2024] Open
Abstract
Absence of dystrophin results in muscular weakness, chronic inflammation and cardiomyopathy in Duchenne muscular dystrophy (DMD). Pharmacological corticosteroids are the DMD standard of care; however, they have harsh side effects and unclear molecular benefits. It is uncertain whether signaling by physiological corticosteroids and their receptors plays a modifying role in the natural etiology of DMD. Here, we knocked out the glucocorticoid receptor (GR, encoded by Nr3c1) specifically in myofibers and cardiomyocytes within wild-type and mdx52 mice to dissect its role in muscular dystrophy. Double-knockout mice showed significantly worse phenotypes than mdx52 littermate controls in measures of grip strength, hang time, inflammatory pathology and gene expression. In the heart, GR deletion acted additively with dystrophin loss to exacerbate cardiomyopathy, resulting in enlarged hearts, pathological gene expression and systolic dysfunction, consistent with imbalanced mineralocorticoid signaling. The results show that physiological GR functions provide a protective role during muscular dystrophy, directly contrasting its degenerative role in other disease states. These data provide new insights into corticosteroids in disease pathophysiology and establish a new model to investigate cell-autonomous roles of nuclear receptors and mechanisms of pharmacological corticosteroids.
Collapse
MESH Headings
- Animals
- Mice
- Cardiomyopathies/pathology
- Cardiomyopathies/metabolism
- Dystrophin/metabolism
- Dystrophin/genetics
- Dystrophin/deficiency
- Mice, Inbred C57BL
- Mice, Inbred mdx
- Mice, Knockout
- Muscle, Skeletal/pathology
- Muscle, Skeletal/metabolism
- Muscular Dystrophy, Animal/pathology
- Muscular Dystrophy, Animal/metabolism
- Muscular Dystrophy, Duchenne/pathology
- Muscular Dystrophy, Duchenne/metabolism
- Myocardium/pathology
- Myocardium/metabolism
- Myocytes, Cardiac/metabolism
- Myocytes, Cardiac/pathology
- Myocytes, Cardiac/drug effects
- Phenotype
- Receptors, Glucocorticoid/metabolism
Collapse
Affiliation(s)
- Trinitee Oliver
- Center for Genetic Medicine Research, Children's National Hospital, Washington, DC 20010, USA
- Department of Biology, Howard University, Washington, DC 20059, USA
- Graduate School of Biomedical Sciences, Cedars-Sinai Medical Center, West Hollywood, CA 90048, USA
| | - Nhu Y. Nguyen
- Center for Genetic Medicine Research, Children's National Hospital, Washington, DC 20010, USA
- Department of Molecular Biomedical Sciences, North Carolina State University, Raleigh, NC 27607, USA
| | - Christopher B. Tully
- Center for Genetic Medicine Research, Children's National Hospital, Washington, DC 20010, USA
| | - Nikki M. McCormack
- Center for Genetic Medicine Research, Children's National Hospital, Washington, DC 20010, USA
| | - Christina M. Sun
- Center for Genetic Medicine Research, Children's National Hospital, Washington, DC 20010, USA
| | - Alyson A. Fiorillo
- Center for Genetic Medicine Research, Children's National Hospital, Washington, DC 20010, USA
- Department of Genomics and Precision Medicine, The George Washington University, Washington, DC 20037, USA
- Center for Inherited Muscle Research, Department of Neurology, Virginia Commonwealth University, Richmond, VA 23298, USA
| | - Christopher R. Heier
- Center for Genetic Medicine Research, Children's National Hospital, Washington, DC 20010, USA
- Department of Genomics and Precision Medicine, The George Washington University, Washington, DC 20037, USA
- Center for Inherited Muscle Research, Department of Neurology, Virginia Commonwealth University, Richmond, VA 23298, USA
| |
Collapse
|
7
|
Oh H, Makita Y, Masuno K, Imamura Y. Hangeshashinto Inhibits Porphyromonas gingivalis Pathogen-Associated Molecular Patterns-Mediated IL-6 and IL-8 Production through Toll-Like Receptors in CAL27 Cells. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2024; 2024:9866670. [PMID: 38665937 PMCID: PMC11045287 DOI: 10.1155/2024/9866670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 03/04/2024] [Accepted: 04/04/2024] [Indexed: 04/28/2024]
Abstract
While previous reports have established the anti-inflammatory effects of hangeshashinto, the intracellular signal transduction pathways involved have yet to be elucidated. We aim to employ an experimental system using oral cancer cells to assess the impact of hangeshashinto on intracellular signal transduction pathways in response to stimulation by Porphyromonas gingivalis pathogen-associated molecular patterns (PAMP). Hangeshashinto demonstrated the ability to inhibit the production of interleukin (IL)-6 and IL-8 induced by P. gingivalis PAMP. Furthermore, hangeshashinto suppressed the activation of the IL-6 promoter stimulated by PAMP. Hangeshashinto, like Toll-like receptor (TLR) signaling inhibitors (resatorvid and C29) and an immunosuppressant (dexamethasone), exhibited the ability to suppress TLR-mediated activation of the transcription factor nuclear factor-κB (NF-κB) in response to PAMP stimulation. This study suggests that the anti-inflammatory effects of hangeshashinto may be attributed to the inhibition of TLR signal transduction pathways including NF-κB activation, thereby suppressing NF-κB-dependent gene expression.
Collapse
Affiliation(s)
- Hourei Oh
- Center of Innovation in Dental Education, Osaka Dental University, Osaka 573-1121, Japan
| | - Yoshimasa Makita
- Department of Chemistry, Osaka Dental University, Osaka 573-1121, Japan
| | - Kazuya Masuno
- Center of Innovation in Dental Education, Osaka Dental University, Osaka 573-1121, Japan
| | - Yasuhiro Imamura
- Department of Pharmacology, Matsumoto Dental University, Nagano 399-0781, Japan
| |
Collapse
|
8
|
Maura F, Bergsagel PL. Molecular Pathogenesis of Multiple Myeloma: Clinical Implications. Hematol Oncol Clin North Am 2024; 38:267-279. [PMID: 38199896 DOI: 10.1016/j.hoc.2023.12.010] [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] [Indexed: 01/12/2024]
Abstract
Multiple myeloma is a malignancy of bone-marrow-localized, isotype-switched plasma cells that secrete a monoclonal immunoglobulin and cause hyperCalcemia, Anemia, Renal failure, and lytic Bone disease. It is preceded, often for decades, by a relatively stable monoclonal gammopathy lacking these clinical and malignant features. Both conditions are characterized by the presence of types of immunoglobulin heavy gene translocations that dysregulate a cyclin D family gene on 11q13 (CCND1), 6p21 (CCND3), or 12q11 (CCND2), a maf family gene on 16q23 (MAF), 20q11 (MAFB), or 8q24 (MAFA), or NSD2/FGFR3 on 4p16, or the presence of hyperdiploidy. Subsequent loss of function of tumor suppressor genes and mutations activating MYC, RAS, NFkB, and cell cycle pathways are associated with the progression to malignant disease.
Collapse
Affiliation(s)
- Francesco Maura
- University of Miami, 1120 Northwest 14th Street, Miami, FL 33136, USA.
| | | |
Collapse
|
9
|
Akay N, Şanal KO. Can Topical Agents (Arnica and Mucopolysaccharide Polysulfate) Reduce Postoperative Pain, Edema and Trismus Following Mandibular Third Molar Surgery? J Oral Maxillofac Surg 2024; 82:113-121. [PMID: 37913818 DOI: 10.1016/j.joms.2023.10.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2022] [Revised: 08/26/2023] [Accepted: 10/07/2023] [Indexed: 11/03/2023]
Abstract
BACKGROUND Postoperative supplemental maintenance following mandibular third molar surgery remains an area of interest. PURPOSE Topical agents can modulate inflammatory processes. The aim of the present study was to determine if topical application of arnica or mucopolysaccharide polysulfate (MPSP) reduces pain, trismus, and edema following the removal of impacted mandibular third molars. MATERIALS AND METHODS A single center randomized controlled clinical trial was conducted. The patients were randomized into three groups: the control group (standard therapy [ST]: antibiotic + nonsteroidal anti-inflammatory drugs twice a day), the arnica group (arnica + ST), and the MPSP group (MPSP + ST). The patients' pain, trismus, and edema values were measured preoperatively and on postoperative days 1, 3, 5, and 10. Sex, age, and operation time were also included. Analyses included descriptive statistics, analysis of variance, post hoc tests, and determinations of intraclass correlation coefficients. Statistical significance was set at P < .05. RESULTS Sixty patients with a mean age of 26.98 ± 10.88 years were included in the study; 55% were females and 45% were males. The mean operation time was 23.8 ± 3.27 minutes. According to the visual analogue scale scores (in centimeter units), the arnica and MPSP groups felt less pain than the control group until day 5 (0.6 ± 0.88, 3.75 ± 1.16, 4.75 ± 1.29, and 1.05 ± 1.10, respectively, for the arnica group; 0.35 ± 0.59, 3.25 ± 1.62, 5.0 ± 1.65, and 1.50 ± 1.32 for the MPSP group; and 1.30 ± 1.17, 5.75 ± 1.37, 7.05 ± 1.10, and 3.15 ± 1.53 for the control group; P < .05). The trismus was lower on days 1, 3, and 5 in the arnica group (-8.05 ± 2.82, -12.15 ± 3.1, and -2.15 ± 1.81, respectively) than in the control group (-12 ± 3.82, -15.65 ± 4.81, and -4±2.81, respectively) (P < .05). The edema was lower on days 1 and 3 in the MPSP group (0.95 ± 2.2 and 1.75 ± 3.7, respectively) than in the control group (2.45 ± 0.9 and 3.6 ± 0.8, respectively) (P < .05). Arnica and MPSP had similar pain-relieving action, but arnica was more effective at reducing trismus, while MPSP was more effective at reducing edema. CONCLUSIONS Topical application of arnica or MPSP may have a beneficial effect on relieving pain 5 days after surgery, but arnica was also effective at reducing trismus, while MPSP was also effective at reducing edema. Both arnica and MPSP reduced postoperative sequelae.
Collapse
Affiliation(s)
- Neşet Akay
- Assistant Professor, Department of Oral and Maxillofacial Surgery, Bolu Abant Izzet Baysal University, Faculty of Dentistry, Bolu, Turkey
| | - Koray Onur Şanal
- Assistant Professor, Department of Oral and Maxillofacial Surgery, Bolu Abant Izzet Baysal University, Faculty of Dentistry, Bolu, Turkey.
| |
Collapse
|
10
|
Fang Y, Shen B, Dai Q, Xie Q, Wu W, Wang M. Orbital inflammatory pseudotumor: new advances in diagnosis, pathogenesis, and treatment. Eur J Med Res 2023; 28:395. [PMID: 37794419 PMCID: PMC10548690 DOI: 10.1186/s40001-023-01330-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Accepted: 08/29/2023] [Indexed: 10/06/2023] Open
Abstract
Orbital inflammatory pseudotumor (OIP) is a benign, non-specific inflammatory disorder that commonly occurs in middle-aged adults and is usually unilateral but can occur bilaterally. Its clinical manifestations have tremendous clinical heterogeneity and vary according to the site of infiltration and the degree of lesions, including orbital pain, swelling, diplopia, proptosis, restricted eye movement, and decreased visual acuity. Clinical features, Image characteristics and pathological examinations often need to be evaluated to confirm the diagnosis. Currently, there is no systematic research on the pathogenesis of OIP, which may be related to immunity or infection. The first-line treatment is glucocorticoids. Radiotherapy, immunosuppressants, and biologics can be considered for treatment-resistant, hormone-dependent, or intolerant patients. In this review, we aim to summarize and focus on new insights into OIP, including new diagnostic criteria, pathogenesis, and discoveries in new drugs and treatment strategies. In particular, we highlight the literature and find that T cell-mediated immune responses are closely related to the pathogenesis of OIP. Further exploration of the mechanism and signaling pathway of T cells in the immune process will help to identify their therapeutic targets and carry out targeted therapy to treat refractory OIP and reduce the side effects of traditional treatments.
Collapse
Affiliation(s)
- Yenan Fang
- National Clinical Research Center for Ocular Diseases, Eye Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, People's Republic of China
| | - Bingyan Shen
- National Clinical Research Center for Ocular Diseases, Eye Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, People's Republic of China
| | - Qin Dai
- National Clinical Research Center for Ocular Diseases, Eye Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, People's Republic of China
| | - Qiqi Xie
- National Clinical Research Center for Ocular Diseases, Eye Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, People's Republic of China
| | - Wencan Wu
- National Clinical Research Center for Ocular Diseases, Eye Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, People's Republic of China.
- State Key Laboratory of Ophthalmology, Optometry and Vision Science, Eye Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, People's Republic of China.
| | - Min Wang
- National Clinical Research Center for Ocular Diseases, Eye Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, People's Republic of China.
- State Key Laboratory of Ophthalmology, Optometry and Vision Science, Eye Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, People's Republic of China.
| |
Collapse
|
11
|
Zammit NW, Wong YY, Walters SN, Warren J, Barry SC, Grey ST. RELA governs a network of islet-specific metabolic genes necessary for beta cell function. Diabetologia 2023; 66:1516-1531. [PMID: 37311878 PMCID: PMC10317895 DOI: 10.1007/s00125-023-05931-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Accepted: 03/14/2023] [Indexed: 06/15/2023]
Abstract
AIMS/HYPOTHESIS NF-κB activation unites metabolic and inflammatory responses in many diseases yet less is known about the role that NF-κB plays in normal metabolism. In this study we investigated how RELA impacts the beta cell transcriptional landscape and provides network control over glucoregulation. METHODS We generated novel mouse lines harbouring beta cell-specific deletion of either the Rela gene, encoding the canonical NF-κB transcription factor p65 (βp65KO mice), or the Ikbkg gene, encoding the NF-κB essential modulator NEMO (βNEMOKO mice), as well as βA20Tg mice that carry beta cell-specific and forced transgenic expression of the NF-κB-negative regulator gene Tnfaip3, which encodes the A20 protein. Mouse studies were complemented by bioinformatics analysis of human islet chromatin accessibility (assay for transposase-accessible chromatin with sequencing [ATAC-seq]), promoter capture Hi-C (pcHi-C) and p65 binding (chromatin immunoprecipitation-sequencing [ChIP-seq]) data to investigate genome-wide control of the human beta cell metabolic programme. RESULTS Rela deficiency resulted in complete loss of stimulus-dependent inflammatory gene upregulation, consistent with its known role in governing inflammation. However, Rela deletion also rendered mice glucose intolerant because of functional loss of insulin secretion. Glucose intolerance was intrinsic to beta cells as βp65KO islets failed to secrete insulin ex vivo in response to a glucose challenge and were unable to restore metabolic control when transplanted into secondary chemical-induced hyperglycaemic recipients. Maintenance of glucose tolerance required Rela but was independent of classical NF-κB inflammatory cascades, as blocking NF-κB signalling in vivo by beta cell knockout of Ikbkg (NEMO), or beta cell overexpression of Tnfaip3 (A20), did not cause severe glucose intolerance. Thus, basal p65 activity has an essential and islet-intrinsic role in maintaining normal glucose homeostasis. Genome-wide bioinformatic mapping revealed the presence of p65 binding sites in the promoter regions of specific metabolic genes and in the majority of islet enhancer hubs (~70% of ~1300 hubs), which are responsible for shaping beta cell type-specific gene expression programmes. Indeed, the islet-specific metabolic genes Slc2a2, Capn9 and Pfkm identified within the large network of islet enhancer hub genes showed dysregulated expression in βp65KO islets. CONCLUSIONS/INTERPRETATION These data demonstrate an unappreciated role for RELA as a regulator of islet-specific transcriptional programmes necessary for the maintenance of healthy glucose metabolism. These findings have clinical implications for the use of anti-inflammatories, which influence NF-κB activation and are associated with diabetes.
Collapse
Affiliation(s)
- Nathan W Zammit
- Transplantation Immunology Laboratory, Garvan Institute of Medical Research, Darlinghurst, NSW, Australia
- Translation Science Pillar, Garvan Institute of Medical Research, Darlinghurst, NSW, Australia
- Department of Immunology, Harvard Medical School, Boston, MA, USA
- Evergrande Center for Immunologic Diseases, Harvard Medical School and Brigham and Women's Hospital, Boston, MA, USA
| | - Ying Ying Wong
- Robinson Research Institute, Adelaide Medical School, University of Adelaide, Adelaide, SA, Australia
| | - Stacey N Walters
- Transplantation Immunology Laboratory, Garvan Institute of Medical Research, Darlinghurst, NSW, Australia
- Translation Science Pillar, Garvan Institute of Medical Research, Darlinghurst, NSW, Australia
| | - Joanna Warren
- Transplantation Immunology Laboratory, Garvan Institute of Medical Research, Darlinghurst, NSW, Australia
- Translation Science Pillar, Garvan Institute of Medical Research, Darlinghurst, NSW, Australia
| | - Simon C Barry
- Robinson Research Institute, Adelaide Medical School, University of Adelaide, Adelaide, SA, Australia
| | - Shane T Grey
- Transplantation Immunology Laboratory, Garvan Institute of Medical Research, Darlinghurst, NSW, Australia.
- Translation Science Pillar, Garvan Institute of Medical Research, Darlinghurst, NSW, Australia.
- School of Biotechnology and Biomolecular Sciences, Faculty of Science, University of New South Wales, Sydney, NSW, Australia.
| |
Collapse
|
12
|
Fandiño S, Gomez-Lucia E, Benítez L, Doménech A. Avian Leukosis: Will We Be Able to Get Rid of It? Animals (Basel) 2023; 13:2358. [PMID: 37508135 PMCID: PMC10376345 DOI: 10.3390/ani13142358] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2023] [Revised: 07/17/2023] [Accepted: 07/18/2023] [Indexed: 07/30/2023] Open
Abstract
Avian leukosis viruses (ALVs) have been virtually eradicated from commercial poultry. However, some niches remain as pockets from which this group of viruses may reemerge and induce economic losses. Such is the case of fancy, hobby, backyard chickens and indigenous or native breeds, which are not as strictly inspected as commercial poultry and which have been found to harbor ALVs. In addition, the genome of both poultry and of several gamebird species contain endogenous retroviral sequences. Circumstances that support keeping up surveillance include the detection of several ALV natural recombinants between exogenous and endogenous ALV-related sequences which, combined with the well-known ability of retroviruses to mutate, facilitate the emergence of escape mutants. The subgroup most prevalent nowadays, ALV-J, has emerged as a multi-recombinant which uses a different receptor from the previously known subgroups, greatly increasing its cell tropism and pathogenicity and making it more transmissible. In this review we describe the ALVs, their different subgroups and which receptor they use to infect the cell, their routes of transmission and their presence in different bird collectivities, and the immune response against them. We analyze the different systems to control them, from vaccination to the progress made editing the bird genome to generate mutated ALV receptors or selecting certain haplotypes.
Collapse
Affiliation(s)
- Sergio Fandiño
- Department of Animal Health, Veterinary Faculty, Complutense University of Madrid, Av. Puerta de Hierro s/n, 28040 Madrid, Spain
- Department of Genetics, Physiology and Microbiology, Faculty of Biological Sciences, Complutense University of Madrid (UCM), C. de José Antonio Novais 12, 28040 Madrid, Spain
- Research Group, "Animal Viruses" of Complutense University of Madrid, 28040 Madrid, Spain
| | - Esperanza Gomez-Lucia
- Department of Animal Health, Veterinary Faculty, Complutense University of Madrid, Av. Puerta de Hierro s/n, 28040 Madrid, Spain
- Research Group, "Animal Viruses" of Complutense University of Madrid, 28040 Madrid, Spain
| | - Laura Benítez
- Department of Genetics, Physiology and Microbiology, Faculty of Biological Sciences, Complutense University of Madrid (UCM), C. de José Antonio Novais 12, 28040 Madrid, Spain
- Research Group, "Animal Viruses" of Complutense University of Madrid, 28040 Madrid, Spain
| | - Ana Doménech
- Department of Animal Health, Veterinary Faculty, Complutense University of Madrid, Av. Puerta de Hierro s/n, 28040 Madrid, Spain
- Research Group, "Animal Viruses" of Complutense University of Madrid, 28040 Madrid, Spain
| |
Collapse
|
13
|
Hyer MM, Wegener AJ, Targett I, Dyer SK, Neigh GN. Chronic stress beginning in adolescence decreases spatial memory following an acute inflammatory challenge in adulthood. Behav Brain Res 2023; 442:114323. [PMID: 36731657 PMCID: PMC10870254 DOI: 10.1016/j.bbr.2023.114323] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 01/26/2023] [Accepted: 01/29/2023] [Indexed: 02/01/2023]
Abstract
Prolonged stress beginning in adolescence can contribute to the dysregulation of the neuroendocrine system in adulthood. As the neuroendocrine and neuroimmune systems participate in bi-directional regulatory control, adolescent stress can prime the neuroimmune system to future inflammatory insults. Previous work from our group demonstrates that stress exaggerates the hippocampal response to inflammation, which can lead to deficits in learning and memory. In the current study, we sought to interrogate the interaction between an acute peripheral challenge of lipopolysaccharide (LPS) in male and female Wistar rats with a history of stress beginning in adolescence (CAS). Males from the CAS group were more vulnerable to the peripheral effects of LPS compared to non-stressed males including porphyrin staining and ruffled fur. In contrast, LPS generated similar peripheral effects in females regardless of adolescent stress history. Learning and memory were differentially impacted by LPS as a function of stress history and effects manifested differently when stratified by sex. Males with a history of adolescent stress exhibited deficits in initial learning. Females from the CAS group performed similar to controls during acquisition but exhibited a slight impairment during reversal learning. Males and females with a history of stress displayed memory impairment during the probe assessments as compared to their same-sex control group. We conclude that while stress beginning in adolescence enhanced the vulnerability of learning and memory to an inflammatory challenge, the phenotype of this effect manifested differently in males and females. These data demonstrate a sustained impact of adolescent stress on the neuroimmune system which is sufficient to influence cognitive performance in both sexes.
Collapse
Affiliation(s)
- M M Hyer
- Department of Anatomy and Neurobiology, Virginia Commonwealth University, Richmond, VA 23298, USA
| | - A J Wegener
- Department of Anatomy and Neurobiology, Virginia Commonwealth University, Richmond, VA 23298, USA
| | - I Targett
- Department of Anatomy and Neurobiology, Virginia Commonwealth University, Richmond, VA 23298, USA
| | - S K Dyer
- Department of Anatomy and Neurobiology, Virginia Commonwealth University, Richmond, VA 23298, USA
| | - G N Neigh
- Department of Anatomy and Neurobiology, Virginia Commonwealth University, Richmond, VA 23298, USA.
| |
Collapse
|
14
|
Lisakovska O, Labudzynskyi D, Khomenko A, Isaev D, Savotchenko A, Kasatkina L, Savosko S, Veliky M, Shymanskyi I. Brain vitamin D3-auto/paracrine system in relation to structural, neurophysiological, and behavioral disturbances associated with glucocorticoid-induced neurotoxicity. Front Cell Neurosci 2023; 17:1133400. [PMID: 37020845 PMCID: PMC10067932 DOI: 10.3389/fncel.2023.1133400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Accepted: 02/28/2023] [Indexed: 03/22/2023] Open
Abstract
IntroductionVitamin D3 (VD3) is a potent para/autocrine regulator and neurosteroid that can strongly influence nerve cell function and counteract the negative effects of glucocorticoid (GC) therapy. The aim of the study was to reveal the relationship between VD3 status and behavioral, structural-functional and molecular changes associated with GC-induced neurotoxicity.MethodsFemale Wistar rats received synthetic GC prednisolone (5 mg/kg b.w.) with or without VD3 (1000 IU/kg b.w.) for 30 days. Behavioral, histological, physiological, biochemical, molecular biological (RT-PCR, Western blotting) methods, and ELISA were used.Results and discussionThere was no difference in open field test (OFT), while forced swim test (FST) showed an increase in immobility time and a decrease in active behavior in prednisolone-treated rats, indicative of depressive changes. GC increased the perikaryon area, enlarged the size of the nuclei, and caused a slight reduction of cell density in CA1-CA3 hippocampal sections. We established a GC-induced decrease in the long-term potentiation (LTP) in CA1-CA3 hippocampal synapses, the amplitude of high K+-stimulated exocytosis, and the rate of Ca2+-dependent fusion of synaptic vesicles with synaptic plasma membranes. These changes were accompanied by an increase in nitration and poly(ADP)-ribosylation of cerebral proteins, suggesting the development of oxidative-nitrosative stress. Prednisolone upregulated the expression and phosphorylation of NF-κB p65 subunit at Ser311, whereas downregulating IκB. GC loading depleted the circulating pool of 25OHD3 in serum and CSF, elevated VDR mRNA and protein levels but had an inhibitory effect on CYP24A1 and VDBP expression. Vitamin D3 supplementation had an antidepressant-like effect, decreasing the immobility time and stimulating active behavior. VD3 caused a decrease in the size of the perikaryon and nucleus in CA1 hippocampal area. We found a recovery in depolarization-induced fusion of synaptic vesicles and long-term synaptic plasticity after VD3 treatment. VD3 diminished the intensity of oxidative-nitrosative stress, and suppressed the NF-κB activation. Its ameliorative effect on GC-induced neuroanatomical and behavioral abnormalities was accompanied by the 25OHD3 repletion and partial restoration of the VD3-auto/paracrine system.ConclusionGC-induced neurotoxicity and behavioral disturbances are associated with increased oxidative-nitrosative stress and impairments of VD3 metabolism. Thus, VD3 can be effective in preventing structural and functional abnormalities in the brain and behavior changes caused by long-term GC administration.
Collapse
Affiliation(s)
- Olha Lisakovska
- Department of Biochemistry of Vitamins and Coenzymes, Palladin Institute of Biochemistry, Kyiv, Ukraine
- *Correspondence: Olha Lisakovska,
| | - Dmytro Labudzynskyi
- Department of Biochemistry of Vitamins and Coenzymes, Palladin Institute of Biochemistry, Kyiv, Ukraine
| | - Anna Khomenko
- Department of Biochemistry of Vitamins and Coenzymes, Palladin Institute of Biochemistry, Kyiv, Ukraine
| | - Dmytro Isaev
- Department of Cellular Membranology, Bogomoletz Institute of Physiology, Kyiv, Ukraine
| | - Alina Savotchenko
- Department of Cellular Membranology, Bogomoletz Institute of Physiology, Kyiv, Ukraine
| | - Ludmila Kasatkina
- Research Laboratory for Young Scientists, Palladin Institute of Biochemistry, Kyiv, Ukraine
| | - Serhii Savosko
- Department of Histology and Embryology, Bogomolets National Medical University, Kyiv, Ukraine
| | - Mykola Veliky
- Department of Biochemistry of Vitamins and Coenzymes, Palladin Institute of Biochemistry, Kyiv, Ukraine
| | - Ihor Shymanskyi
- Department of Biochemistry of Vitamins and Coenzymes, Palladin Institute of Biochemistry, Kyiv, Ukraine
| |
Collapse
|
15
|
Jung DH, Nahar J, Mathiyalagan R, Rupa EJ, Ramadhania ZM, Han Y, Yang DC, Kang SC. A Focused Review on Molecular Signalling Mechanisms of Ginsenosides Anti-Lung Cancer and Anti-inflammatory Activities. Anticancer Agents Med Chem 2023; 23:3-14. [PMID: 35319393 DOI: 10.2174/1871520622666220321091022] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 11/01/2021] [Accepted: 12/12/2021] [Indexed: 02/08/2023]
Abstract
BACKGROUND Ginseng (Panax ginseng Meyer) is a cultivated medicinal herb that has been widely available in the Asian region since the last century. Ginseng root is used worldwide in Oriental medicine. Currently, the global mortality and infection rates for lung cancer and inflammation are significantly increasing. Therefore, various preventative methods related to the activity of ginsenosides have been used for lung cancer as well as inflammation. METHODS Web-based searches were performed on Web of Science, Springer, PubMed, and Scopus. A cancer statistical analysis was also conducted to show the current ratio of affected cases and death from lung cancer around the world. RESULTS Ginsenosides regulate the enzymes that participate in tumor growth and migration, such as nuclear factor kappa B (NF-κB), mitogen-activated protein kinase (p38 MAPK), c-Jun N-terminal kinase (JNK), extracellular signalregulated kinases 1/2 (ERK1/2), the gelatinase network metalloproteinase-2 (MMP-2/9) and activator protein 1 (AP-1). In addition, ginsenosides also possess anti-inflammatory effects by inhibiting the formation of proinflammatory cytokines (tumor necrosis factor-α) (TNF-α) and interleukin-1β (IL-1β) and controlling the activities of inflammatory signalling pathways, such as NF-κB, Janus kinase2/signal transducer, and activator of transcription 3 (Jak2/Stat3). CONCLUSION In several in vitro and in vivo models, P. ginseng showed potential beneficial effects in lung cancer and inflammation treatment. In this review, we provide a detailed and up-to-date summary of research evidence for antilung cancer and anti-inflammatory protective effects of ginsenosides and their potential molecular mechanisms.
Collapse
Affiliation(s)
- Dae-Hyo Jung
- Graduate School of Biotechnology, College of Life Science, Kyung Hee University, Yongin-si, Gyeonggi-do 17104, Republic of Korea
| | - Jinnatun Nahar
- Graduate School of Biotechnology, College of Life Science, Kyung Hee University, Yongin-si, Gyeonggi-do 17104, Republic of Korea
| | - Ramya Mathiyalagan
- Graduate School of Biotechnology, College of Life Science, Kyung Hee University, Yongin-si, Gyeonggi-do 17104, Republic of Korea
| | - Esrat Jahan Rupa
- Department of Oriental Medicinal Biotechnology, College of Life Sciences, Kyung Hee University, Yongin-si, Gyeonggi-do 17104, Korea
| | - Zelika Mega Ramadhania
- Graduate School of Biotechnology, College of Life Science, Kyung Hee University, Yongin-si, Gyeonggi-do 17104, Republic of Korea
| | - Yaxi Han
- Department of Oriental Medicinal Biotechnology, College of Life Sciences, Kyung Hee University, Yongin-si, Gyeonggi-do 17104, Korea
| | - Deok-Chun Yang
- Graduate School of Biotechnology, College of Life Science, Kyung Hee University, Yongin-si, Gyeonggi-do 17104, Republic of Korea.,Department of Oriental Medicinal Biotechnology, College of Life Sciences, Kyung Hee University, Yongin-si, Gyeonggi-do 17104, Korea
| | - Se Chan Kang
- Graduate School of Biotechnology, College of Life Science, Kyung Hee University, Yongin-si, Gyeonggi-do 17104, Republic of Korea
| |
Collapse
|
16
|
Chronic Corticosterone Exposure Suppresses Copper Transport through GR-Mediated Intestinal CTR1 Pathway in Mice. BIOLOGY 2023; 12:biology12020197. [PMID: 36829476 PMCID: PMC9953443 DOI: 10.3390/biology12020197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 01/22/2023] [Accepted: 01/23/2023] [Indexed: 01/31/2023]
Abstract
Numerous studies have discovered that chronic stress induces metabolic disorders by affecting iron and zinc metabolism, but the relationship between chronic stress and copper metabolism remains unclear. Here, we explore the influence of chronic corticosterone (CORT) exposure on copper metabolism and its regulatory mechanism in mice. Mice were treated with 100 μg/mL CORT in drinking water for a 4-week trial. We found that CORT treatment resulted in a significant decrease in plasma copper level, plasma ceruloplasmin activity, plasma and liver Cu/Zn-SOD activity, hepatic copper content, and liver metallothionein content in mice. CORT treatment led to the reduction in duodenal expression of copper transporter 1 (CTR1), duodenal cytochrome b (DCYTB), and ATPase copper-transporting alpha (ATP7A) at the mRNA and protein level in mice. CORT treatment activated nuclear glucocorticoid receptor (GR) and down-regulated CRT1 expression in Caco-2 cells, whereas these phenotypes were reversible by an antagonist of GR, RU486. Chromatin immunoprecipitation analysis revealed that GR bound to the Ctr1 promoter in Caco-2 cells. Transient transfection assays in Caco-2 cells demonstrated that the Ctr1 promoter was responsive to the CORT-activated glucocorticoid receptor, whereas mutation/deletion of the glucocorticoid receptor element (GRE) markedly impaired activation of the Ctr1 promoter. In addition, CORT-induced downregulation of Ctr1 promoter activity was markedly attenuated in Caco-2 cells when RU486 was added. These findings present a novel molecular target for CORT that down-regulates intestinal CTR1 expression via GR-mediated trans-repression in mice.
Collapse
|
17
|
Yang CZ, Zhou Y, Ke M, Gao RY, Ye SR, Diao M, Li L. Effects of postoperative adjuvant steroid therapy on the outcomes of biliary atresia: A systematic review and updated meta-analysis. Front Pharmacol 2022; 13:956093. [PMID: 36188593 PMCID: PMC9516003 DOI: 10.3389/fphar.2022.956093] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2022] [Accepted: 08/19/2022] [Indexed: 11/30/2022] Open
Abstract
Background: Postoperative adjuvant steroid therapy is regarded as the conventional treatment for patients with biliary atresia (BA) who have undergone Kasai portoenterostomy (KP). However, whether the steroid therapy can improve BA outcomes is controversial. This meta-analysis aimed to evaluate the effects of adjuvant steroid therapy on the surgical prognosis of BA. Methods: We searched related studies published in PubMed, Embase, Web of Science, Cochrane, and the Chinese National Knowledge Infrastructure database up to May 2022. Data on the effect of steroid use on the clinical prognosis of the patients, including the jaundice clearance rate (JCR), native liver survival rate (NLSR) at 6, 12, and 24 months after KP, and the incidence of cholangitis, were extracted. Subgroup analyses based on age at KP, administration method, initial dosage, and steroid type were conducted. Statistical analysis was conducted using Stata/SE 12.0. Results: Eleven articles (a total of 1,032 patients) were included in the present meta-analysis. The results demonstrated that postoperative adjuvant steroid therapy improved JCR at the 6/12/24-month follow-up (RR: 1.35, 95% CI: 1.18–1.55, p < 0.001; RR:1.49, 95% CI, 1.12–1.99, p = 0.006; RR: 1.41, 95% CI: 1.14–1.75, p = 0.002) and improved NLSR at the 24-month follow-up (RR: 1.31, 95% CI: 1.03–1.68, p = 0.028). However, steroids could not significantly improve NLSR at the 6/12-month follow-up (RR: 1.06; 95% CI: 0.98–1.15; p = 0.17; RR: 1.22; 95% CI: 0.97–1.54; p = 0.095), and might not decrease the incidence of postoperative cholangitis (RR: 0.78, 95% CI: 0.60–1.01, p = 0.058). Furthermore, subgroup analyses confirmed that three variables (age at KP, administration method, and initial dosage) could affect the efficacy of steroids in BA patients. Conclusion: Postoperative adjuvant steroid therapy can significantly improve bile flow. The superiority of steroid therapy was more remarkable in patients aged ≤70 days at KP than in those aged >70 days. Additionally, intravenous followed by oral steroid administration method and medium initial dosage seemed to have the more reliable efficiency on bile flow. And patients treated by steroid had better long-term (24-month) native liver survival, but there is no significant effect on short-term native liver survival and postoperative cholangitis. Further studies are warranted.
Collapse
Affiliation(s)
- Chang-zhen Yang
- Department of Pediatric Surgery, Capital Institute of Pediatrics, Beijing, China
- Graduate School of Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
- Research Unit of Minimally Invasive Pediatric Surgery on Diagnosis and Treatment(2021RU015), Chinese Academy of Medical Sciences, Beijing, China
| | - Yan Zhou
- Department of Pediatric Surgery, Capital Institute of Pediatrics, Beijing, China
- Graduate School of Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
- Research Unit of Minimally Invasive Pediatric Surgery on Diagnosis and Treatment(2021RU015), Chinese Academy of Medical Sciences, Beijing, China
| | - Meng Ke
- Department of Pediatric Surgery, Capital Institute of Pediatrics, Beijing, China
- Graduate School of Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
- Research Unit of Minimally Invasive Pediatric Surgery on Diagnosis and Treatment(2021RU015), Chinese Academy of Medical Sciences, Beijing, China
| | - Ru-yue Gao
- Department of Pediatric Surgery, Capital Institute of Pediatrics, Beijing, China
- Graduate School of Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
- Research Unit of Minimally Invasive Pediatric Surgery on Diagnosis and Treatment(2021RU015), Chinese Academy of Medical Sciences, Beijing, China
| | - Shi-ru Ye
- Department of Pediatric Surgery, Capital Institute of Pediatrics, Beijing, China
| | - Mei Diao
- Department of Pediatric Surgery, Capital Institute of Pediatrics, Beijing, China
- Graduate School of Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
- Research Unit of Minimally Invasive Pediatric Surgery on Diagnosis and Treatment(2021RU015), Chinese Academy of Medical Sciences, Beijing, China
| | - Long Li
- Department of Pediatric Surgery, Capital Institute of Pediatrics, Beijing, China
- Graduate School of Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
- Research Unit of Minimally Invasive Pediatric Surgery on Diagnosis and Treatment(2021RU015), Chinese Academy of Medical Sciences, Beijing, China
- *Correspondence: Long Li,
| |
Collapse
|
18
|
Marko B, Heurich P, Thon P, Zimmer F, Bergmann L, Nowak H, Rump K, Koos B, Adamzik M, Unterberg M, Rahmel T. The Pro-Inflammatory Deletion Allele of the NF-κB1 Polymorphism Is Characterized by a Depletion of Subunit p50 in Sepsis. Int J Mol Sci 2022; 23:ijms23147559. [PMID: 35886907 PMCID: PMC9318670 DOI: 10.3390/ijms23147559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Revised: 07/01/2022] [Accepted: 07/07/2022] [Indexed: 12/10/2022] Open
Abstract
The functionally important NF-κB1 promoter polymorphism (−94ins/delATTG) significantly shapes inflammation and impacts the outcome of sepsis. However, exploratory studies elucidating the molecular link of this genotype-dependent pattern are lacking. Accordingly, we analyzed lipopolysaccharide-stimulated peripheral blood mononuclear cells from both healthy volunteers (n = 20) and septic patients (n = 10). All individuals were genotyped for the −94ins/delATTG NF-κB1 promoter polymorphism. We found a diminished nuclear activity of the NF-κB subunit p50 in ID/DD genotypes after 48 h of lipopolysaccharide stimulation compared to II genotypes (p = 0.025). This was associated with higher TNF-α (p = 0.005) and interleukin 6 concentrations (p = 0.014) and an increased production of mitochondrial radical oxygen species in ID/DD genotypes (p = 0.001). Although ID/DD genotypes showed enhanced activation of mitochondrial biogenesis, they still had a significantly diminished cellular ATP content (p = 0.046) and lower mtDNA copy numbers (p = 0.010) compared to II genotypes. Strikingly, these findings were mirrored in peripheral blood mononuclear cells taken from septic patients. Our results emphasize the crucial aspect of considering NF-κB subunits in sepsis. We showed here that the deletion allele of the NF-κB1 (−94ins/delATTG) polymorphism was associated with the lower nuclear activity of subunit p50, which, in turn, was associated with aggravated inflammation and mitochondrial dysfunction.
Collapse
Affiliation(s)
| | | | | | | | | | | | | | | | | | | | - Tim Rahmel
- Correspondence: ; Tel.: +49-234-29980025; Fax: +49-234-2993009
| |
Collapse
|
19
|
He L, Zhang CL, Chen Q, Wang L, Huang Y. Endothelial shear stress signal transduction and atherogenesis: From mechanisms to therapeutics. Pharmacol Ther 2022; 235:108152. [PMID: 35122834 DOI: 10.1016/j.pharmthera.2022.108152] [Citation(s) in RCA: 46] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2021] [Revised: 01/13/2022] [Accepted: 01/27/2022] [Indexed: 10/19/2022]
Abstract
Atherosclerotic vascular disease and its complications are among the top causes of mortality worldwide. In the vascular lumen, atherosclerotic plaques are not randomly distributed. Instead, they are preferentially localized at the curvature and bifurcations along the arterial tree, where shear stress is low or disturbed. Numerous studies demonstrate that endothelial cell phenotypic change (e.g., inflammation, oxidative stress, endoplasmic reticulum stress, apoptosis, autophagy, endothelial-mesenchymal transition, endothelial permeability, epigenetic regulation, and endothelial metabolic adaptation) induced by oscillatory shear force play a fundamental role in the initiation and progression of atherosclerosis. Mechano-sensors, adaptor proteins, kinases, and transcriptional factors work closely at different layers to transduce the shear stress force from the plasma membrane to the nucleus in endothelial cells, thereby controlling the expression of genes that determine cell fate and phenotype. An in-depth understanding of these mechano-sensitive signaling cascades shall provide new translational strategies for therapeutic intervention of atherosclerotic vascular disease. This review updates the recent advances in endothelial mechano-transduction and its role in the pathogenesis of atherosclerosis, and highlights the perspective of new anti-atherosclerosis therapies through targeting these mechano-regulated signaling molecules.
Collapse
Affiliation(s)
- Lei He
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Cheng-Lin Zhang
- Department of Pathophysiology, School of Basic Medical Sciences, Shenzhen University Health Science Center, Shenzhen 518060, China; Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong, China
| | - Qinghua Chen
- Department of Biomedical Sciences, City University of Hong Kong, Hong Kong, China
| | - Li Wang
- Department of Biomedical Sciences, City University of Hong Kong, Hong Kong, China
| | - Yu Huang
- Department of Biomedical Sciences, City University of Hong Kong, Hong Kong, China.
| |
Collapse
|
20
|
Tapp ZM, Cornelius S, Oberster A, Kumar JE, Atluri R, Witcher KG, Oliver B, Bray C, Velasquez J, Zhao F, Peng J, Sheridan J, Askwith C, Godbout JP, Kokiko-Cochran ON. Sleep fragmentation engages stress-responsive circuitry, enhances inflammation and compromises hippocampal function following traumatic brain injury. Exp Neurol 2022; 353:114058. [PMID: 35358498 PMCID: PMC9068267 DOI: 10.1016/j.expneurol.2022.114058] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 03/04/2022] [Accepted: 03/24/2022] [Indexed: 02/08/2023]
Abstract
Traumatic brain injury (TBI) impairs the ability to restore homeostasis in response to stress, indicating hypothalamic-pituitary-adrenal (HPA)-axis dysfunction. Many stressors result in sleep disturbances, thus mechanical sleep fragmentation (SF) provides a physiologically relevant approach to study the effects of stress after injury. We hypothesize SF stress engages the dysregulated HPA-axis after TBI to exacerbate post-injury neuroinflammation and compromise recovery. To test this, male and female mice were given moderate lateral fluid percussion TBI or sham-injury and left undisturbed or exposed to daily, transient SF for 7- or 30-days post-injury (DPI). Post-TBI SF increases cortical expression of interferon- and stress-associated genes characterized by inhibition of the upstream regulator NR3C1 that encodes glucocorticoid receptor (GR). Moreover, post-TBI SF increases neuronal activity in the hippocampus, a key intersection of the stress-immune axes. By 30 DPI, TBI SF enhances cortical microgliosis and increases expression of pro-inflammatory glial signaling genes characterized by persistent inhibition of the NR3C1 upstream regulator. Within the hippocampus, post-TBI SF exaggerates microgliosis and decreases CA1 neuronal activity. Downstream of the hippocampus, post-injury SF suppresses neuronal activity in the hypothalamic paraventricular nucleus indicating decreased HPA-axis reactivity. Direct application of GR agonist, dexamethasone, to the CA1 at 30 DPI increases GR activity in TBI animals, but not sham animals, indicating differential GR-mediated hippocampal action. Electrophysiological assessment revealed TBI and SF induces deficits in Schaffer collateral long-term potentiation associated with impaired acquisition of trace fear conditioning, reflecting dorsal hippocampal-dependent cognitive deficits. Together these data demonstrate that post-injury SF engages the dysfunctional post-injury HPA-axis, enhances inflammation, and compromises hippocampal function. Therefore, external stressors that disrupt sleep have an integral role in mediating outcome after brain injury.
Collapse
Affiliation(s)
- Zoe M Tapp
- Dept. of Neuroscience, College of Medicine, The Ohio State University, 1858 Neil Ave, Columbus, OH 43210, USA.
| | - Sydney Cornelius
- Dept. of Neuroscience, College of Medicine, The Ohio State University, 1858 Neil Ave, Columbus, OH 43210, USA.
| | - Alexa Oberster
- Dept. of Neuroscience, College of Medicine, The Ohio State University, 1858 Neil Ave, Columbus, OH 43210, USA
| | - Julia E Kumar
- Dept. of Neuroscience, College of Medicine, The Ohio State University, 1858 Neil Ave, Columbus, OH 43210, USA.
| | - Ravitej Atluri
- Dept. of Neuroscience, College of Medicine, The Ohio State University, 1858 Neil Ave, Columbus, OH 43210, USA.
| | - Kristina G Witcher
- Dept. of Neuroscience, College of Medicine, The Ohio State University, 1858 Neil Ave, Columbus, OH 43210, USA.
| | - Braedan Oliver
- Institute for Behavioral Medicine Research, Neurological Institute, The Ohio State University, 460 Medical Center Drive, Columbus, OH 43210, USA.
| | - Chelsea Bray
- Institute for Behavioral Medicine Research, Neurological Institute, The Ohio State University, 460 Medical Center Drive, Columbus, OH 43210, USA.
| | - John Velasquez
- Institute for Behavioral Medicine Research, Neurological Institute, The Ohio State University, 460 Medical Center Drive, Columbus, OH 43210, USA.
| | - Fangli Zhao
- Institute for Behavioral Medicine Research, Neurological Institute, The Ohio State University, 460 Medical Center Drive, Columbus, OH 43210, USA.
| | - Juan Peng
- Center for Biostatistics, The Ohio State University, 320-55 Lincoln Tower, 1800 Cannon Drive, Columbus, OH 43210, USA.
| | - John Sheridan
- Dept. of Neuroscience, College of Medicine, The Ohio State University, 1858 Neil Ave, Columbus, OH 43210, USA; Institute for Behavioral Medicine Research, Neurological Institute, The Ohio State University, 460 Medical Center Drive, Columbus, OH 43210, USA; Division of Biosciences, College of Dentistry, The Ohio State University, 305 W. 12(th) Ave, Columbus, OH 43210, USA.
| | - Candice Askwith
- Dept. of Neuroscience, College of Medicine, The Ohio State University, 1858 Neil Ave, Columbus, OH 43210, USA.
| | - Jonathan P Godbout
- Dept. of Neuroscience, College of Medicine, The Ohio State University, 1858 Neil Ave, Columbus, OH 43210, USA; Institute for Behavioral Medicine Research, Neurological Institute, The Ohio State University, 460 Medical Center Drive, Columbus, OH 43210, USA.
| | - Olga N Kokiko-Cochran
- Dept. of Neuroscience, College of Medicine, The Ohio State University, 1858 Neil Ave, Columbus, OH 43210, USA; Institute for Behavioral Medicine Research, Neurological Institute, The Ohio State University, 460 Medical Center Drive, Columbus, OH 43210, USA.
| |
Collapse
|
21
|
Portuguez AS, Grbesa I, Tal M, Deitch R, Raz D, Kliker L, Weismann R, Schwartz M, Loza O, Cohen L, Marchenkov-Flam L, Sung MH, Kaplan T, Hakim O. Ep300 sequestration to functionally distinct glucocorticoid receptor binding loci underlie rapid gene activation and repression. Nucleic Acids Res 2022; 50:6702-6714. [PMID: 35713523 PMCID: PMC9262608 DOI: 10.1093/nar/gkac488] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 05/18/2022] [Accepted: 05/26/2022] [Indexed: 12/24/2022] Open
Abstract
The rapid transcriptional response to the transcription factor, glucocorticoid receptor (GR), including gene activation or repression, is mediated by the spatial association of genes with multiple GR binding sites (GBSs) over large genomic distances. However, only a minority of the GBSs have independent GR-mediated activating capacity, and GBSs with independent repressive activity were rarely reported. To understand the positive and negative effects of GR we mapped the regulatory environment of its gene targets. We show that the chromatin interaction networks of GR-activated and repressed genes are spatially separated and vary in the features and configuration of their GBS and other non-GBS regulatory elements. The convergence of the KLF4 pathway in GR-activated domains and the STAT6 pathway in GR-repressed domains, impose opposite transcriptional effects to GR, independent of hormone application. Moreover, the ROR and Rev-erb transcription factors serve as positive and negative regulators, respectively, of GR-mediated gene activation. We found that the spatial crosstalk between GBSs and non-GBSs provides a physical platform for sequestering the Ep300 co-activator from non-GR regulatory loci in both GR-activated and -repressed gene compartments. While this allows rapid gene repression, Ep300 recruitment to GBSs is productive specifically in the activated compartments, thus providing the basis for gene induction.
Collapse
Affiliation(s)
| | | | - Moran Tal
- The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Building 206, Ramat-Gan 5290002, Israel
| | - Rachel Deitch
- The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Building 206, Ramat-Gan 5290002, Israel
| | - Dana Raz
- The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Building 206, Ramat-Gan 5290002, Israel
| | - Limor Kliker
- The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Building 206, Ramat-Gan 5290002, Israel
| | - Ran Weismann
- The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Building 206, Ramat-Gan 5290002, Israel
| | - Michal Schwartz
- The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Building 206, Ramat-Gan 5290002, Israel
| | - Olga Loza
- The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Building 206, Ramat-Gan 5290002, Israel
| | - Leslie Cohen
- The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Building 206, Ramat-Gan 5290002, Israel
| | - Libi Marchenkov-Flam
- The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Building 206, Ramat-Gan 5290002, Israel
| | - Myong-Hee Sung
- Laboratory of Molecular Biology and Immunology, NIA, National Institutes of Health, Baltimore, MD 21224, USA
| | - Tommy Kaplan
- School of Computer Science and Engineering, The Hebrew University of Jerusalem, Jerusalem 91904, Israel,Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem 91121, Israel
| | - Ofir Hakim
- To whom correspondence should be addressed. Tel: +972 3 738 4295; Fax: +972 3 738 4296;
| |
Collapse
|
22
|
Suzuki M, Cooksley C, Suzuki T, Ramezanpour M, Nakazono A, Nakamaru Y, Homma A, Vreugde S. TLR Signals in Epithelial Cells in the Nasal Cavity and Paranasal Sinuses. FRONTIERS IN ALLERGY 2022; 2:780425. [PMID: 35387020 PMCID: PMC8974762 DOI: 10.3389/falgy.2021.780425] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Accepted: 11/01/2021] [Indexed: 12/24/2022] Open
Abstract
The respiratory tract is constantly at risk of invasion by microorganisms such as bacteria, viruses, and fungi. In particular, the mucosal epithelium of the nasal cavity and paranasal sinuses is at the very forefront of the battles between the host and the invading pathogens. Recent studies have revealed that the epithelium not only constitutes a physical barrier but also takes an essential role in the activation of the immune system. One of the mechanisms equipped in the epithelium to fight against microorganisms is the Toll-like receptor (TLR) response. TLRs recognize common structural components of microorganisms and activate the innate immune system, resulting in the production of a plethora of cytokines and chemokines in the response against microbes. As the epithelia-derived cytokines are deeply involved in the pathogenesis of inflammatory conditions in the nasal cavity and paranasal sinuses, such as chronic rhinosinusitis (CRS) and allergic rhinitis (AR), the molecules involved in the TLR response may be utilized as therapeutic targets for these diseases. There are several differences in the TLR response between nasal and bronchial epithelial cells, and knowledge of the TLR signals in the upper airway is sparse compared to that in the lower airway. In this review, we provide recent evidence on TLR signaling in the upper airway, focusing on the expression, regulation, and responsiveness of TLRs in human nasal epithelial cells (HNECs). We also discuss how TLRs in the epithelium are involved in the pathogenesis of, and possible therapeutic targeting, for CRS and AR.
Collapse
Affiliation(s)
- Masanobu Suzuki
- Department of Otolaryngology-Head and Neck Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Clare Cooksley
- Department of Surgery-Otorhinolaryngology Head and Neck Surgery, Central Adelaide Local Health Network and the University of Adelaide, Adelaide, SA, Australia
| | - Takayoshi Suzuki
- Department of Otolaryngology-Head and Neck Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Mahnaz Ramezanpour
- Department of Surgery-Otorhinolaryngology Head and Neck Surgery, Central Adelaide Local Health Network and the University of Adelaide, Adelaide, SA, Australia
| | - Akira Nakazono
- Department of Otolaryngology-Head and Neck Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Yuji Nakamaru
- Department of Otolaryngology-Head and Neck Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Akihiro Homma
- Department of Otolaryngology-Head and Neck Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Sarah Vreugde
- Department of Surgery-Otorhinolaryngology Head and Neck Surgery, Central Adelaide Local Health Network and the University of Adelaide, Adelaide, SA, Australia
| |
Collapse
|
23
|
Jiang Y, Xin N, Yang J, Wu W, Wang M, Feng N, Zhu G. Prednisolone suppresses collagen-encoding gene expression causing cartilage defects in zebrafish larvae. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2021; 87:103719. [PMID: 34332081 DOI: 10.1016/j.etap.2021.103719] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2020] [Revised: 06/25/2021] [Accepted: 07/26/2021] [Indexed: 06/13/2023]
Abstract
Glucocorticoid-induced osteoporosis (GIOP) is a clinically important disease. Despite many studies, the intrinsic pathogenesis of GIOP is still not fully understood. Cartilage is the target tissue of the glucocorticoid prednisolone (PN). To explore the intrinsic mechanism of PN-induced cartilage damage, we performed cartilage staining and cell transfection experiments in zebrafish larvae treated with PN. The results showed that PN caused cartilage damage in zebrafish at 25 μM. Moreover, after treatment with PN, it was found that collagen-encoding gene expression was significantly reduced. Further research revealed that the glucocorticoid receptor (GR) mediates the transcriptional inhibition of collagen genes by PN. These results indicate that glucocorticoids cause cartilage damage by inhibiting the expression of collagen genes through their receptors. Our study provides new insights into GIOP.
Collapse
Affiliation(s)
- Yu Jiang
- Department of Orthopedics, The Affiliated Wuxi No. 2 People's Hospital of Nanjing Medical University, Wuxi, 214000, China; The Affiliated Wuxi Clinical College of Nantong University, Jiangsu, 214000, China
| | - Ning Xin
- Department of Neurology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, 221000, China
| | - Jian Yang
- Wuxi Center for Disease Control and Prevention, Wuxi, 214000, China
| | - Wen Wu
- Department of Orthopedics, The Affiliated Wuxi No. 2 People's Hospital of Nanjing Medical University, Wuxi, 214000, China
| | - Mingyong Wang
- Departments of Orthopaedis, The Second Affiliated Hospital of Soochow University, 1055 Sanxiang Road, 2015004, Suzhou, China
| | - Ninghan Feng
- The Affiliated Wuxi Clinical College of Nantong University, Jiangsu, 214000, China.
| | - Guoxing Zhu
- Department of Orthopedics, The Affiliated Wuxi No. 2 People's Hospital of Nanjing Medical University, Wuxi, 214000, China.
| |
Collapse
|
24
|
Lucafò M, Bramuzzo M, Selvestrel D, Da Lozzo P, Decorti G, Stocco G. Gender May Influence the Immunosuppressive Actions of Prednisone in Young Patients With Inflammatory Bowel Disease. Front Immunol 2021; 12:673068. [PMID: 34054855 PMCID: PMC8158435 DOI: 10.3389/fimmu.2021.673068] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Accepted: 04/29/2021] [Indexed: 12/26/2022] Open
Abstract
Although the use of glucocorticoids (GC) is well established, the therapeutic response to these agents often shows important interindividual differences, in particular among young patients with inflammatory bowel diseases (IBD). Currently, GC resistance or dependence cannot be predicted by clinical or laboratory findings. The aim of this study was to investigate the association of gender and age with GC efficacy and with the expression of Glucocorticoid-Induced Leucine Zipper (GILZ). One hundred thirty patients (mean age at enrolment 12.6 years, 53 Crohn’s disease, 70 males) were enrolled in this retrospective study. IBD patients with active disease despite prednisone at a daily dose of up to 2 mg/kg over a period of 4 weeks were defined as steroid resistant. Patients who initially responded but relapsed upon dose reduction were considered steroid-dependent. Total RNA was extracted from biopsies of 14 patients (9 males) and the levels of GILZ mRNA were evaluated by real-time PCR. Association between clinical response to prednisone and the considered demographic variables was evaluated using logistic regression models. After 4 weeks of treatment, 112 patients were responders to prednisone and 18 were resistant; at this time-point, resistant patients were older than responders (p=0.032). After 12 weeks, 42, 71 and 12 patients were sensitive, dependent and resistant respectively; at this time-point, females were more prone than males to develop prednisone dependence vs a good response (p=0.028) while age had no effect. Age was associated with response both at 4 and 12 weeks in the subgroups of females: resistant patients were older than sensitive ones at 4 weeks (p=0.02). Likewise, at 12 weeks of therapy, dependent patients resulted older than sensitive ones (p=0.05). No association of age with prednisone response was found in males. In a subgroup of 14 patients (5 females), GILZ mRNA expression in intestinal biopsies was higher in males (p=0.0031). Patients with unfavorable response (7) presented lower GILZ expression at disease onset in comparison to the responder group (p=0.017). Older females with IBD have a higher incidence of prednisone unfavorable response and reduced intestinal expression of the GC pharmacodynamic marker GILZ.
Collapse
Affiliation(s)
- Marianna Lucafò
- Institute for Maternal and Child Health - IRCCS Burlo Garofolo, Trieste, Italy
| | - Matteo Bramuzzo
- Institute for Maternal and Child Health - IRCCS Burlo Garofolo, Trieste, Italy
| | | | - Prisca Da Lozzo
- Institute for Maternal and Child Health - IRCCS Burlo Garofolo, Trieste, Italy
| | - Giuliana Decorti
- Institute for Maternal and Child Health - IRCCS Burlo Garofolo, Trieste, Italy.,Department of Medical, Surgical and Health Sciences, University of Trieste, Trieste, Italy
| | - Gabriele Stocco
- Department of Life Sciences, University of Trieste, Trieste, Italy
| |
Collapse
|
25
|
Aylward A, Okino ML, Benaglio P, Chiou J, Beebe E, Padilla JA, Diep S, Gaulton KJ. Glucocorticoid signaling in pancreatic islets modulates gene regulatory programs and genetic risk of type 2 diabetes. PLoS Genet 2021; 17:e1009531. [PMID: 33983929 PMCID: PMC8183998 DOI: 10.1371/journal.pgen.1009531] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 06/07/2021] [Accepted: 04/06/2021] [Indexed: 02/08/2023] Open
Abstract
Glucocorticoids are key regulators of glucose homeostasis and pancreatic islet function, but the gene regulatory programs driving responses to glucocorticoid signaling in islets and the contribution of these programs to diabetes risk are unknown. In this study we used ATAC-seq and RNA-seq to map chromatin accessibility and gene expression from eleven primary human islet samples cultured in vitro with the glucocorticoid dexamethasone at multiple doses and durations. We identified thousands of accessible chromatin sites and genes with significant changes in activity in response to glucocorticoids. Chromatin sites up-regulated in glucocorticoid signaling were prominently enriched for glucocorticoid receptor binding sites and up-regulated genes were enriched for ion transport and lipid metabolism, whereas down-regulated chromatin sites and genes were enriched for inflammatory, stress response and proliferative processes. Genetic variants associated with glucose levels and T2D risk were enriched in glucocorticoid-responsive chromatin sites, including fine-mapped variants at 51 known signals. Among fine-mapped variants in glucocorticoid-responsive chromatin, a likely casual variant at the 2p21 locus had glucocorticoid-dependent allelic effects on beta cell enhancer activity and affected SIX2 and SIX3 expression. Our results provide a comprehensive map of islet regulatory programs in response to glucocorticoids through which we uncover a role for islet glucocorticoid signaling in mediating genetic risk of T2D.
Collapse
Affiliation(s)
- Anthony Aylward
- Bioinformatics and Systems Biology graduate program, University of California San Diego, La Jolla, California, United States of America
| | - Mei-Lin Okino
- Department of Pediatrics, University of California San Diego, La Jolla, California, United States of America
| | - Paola Benaglio
- Department of Pediatrics, University of California San Diego, La Jolla, California, United States of America
| | - Joshua Chiou
- Biomedical Sciences graduate program, University of California San Diego, La Jolla, California, United States of America
| | - Elisha Beebe
- Department of Pediatrics, University of California San Diego, La Jolla, California, United States of America
| | - Jose Andres Padilla
- Department of Pediatrics, University of California San Diego, La Jolla, California, United States of America
| | - Sharlene Diep
- Department of Pediatrics, University of California San Diego, La Jolla, California, United States of America
| | - Kyle J. Gaulton
- Department of Pediatrics, University of California San Diego, La Jolla, California, United States of America
- Institute for Genomic Medicine, University of California San Diego, La Jolla, California, United States of America
| |
Collapse
|
26
|
Meyer EJ, Torpy DJ, Chernykh A, Thaysen-Andersen M, Nenke MA, Lewis JG, Rajapaksha H, Rankin W, Polyak SW. Pyrexia and acidosis act independently of neutrophil elastase reactive center loop cleavage to effect cortisol release from corticosteroid-binding globulin. Protein Sci 2020; 29:2495-2509. [PMID: 33085168 DOI: 10.1002/pro.3982] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 10/20/2020] [Accepted: 10/20/2020] [Indexed: 12/21/2022]
Abstract
Corticosteroid-binding globulin (CBG) transports cortisol and other steroids. High-affinity CBG (haCBG) undergoes proteolysis of the reactive center loop (RCL) by neutrophil elastase (NE) altering conformation to low-affinity CBG (laCBG). Elevated temperature reduces CBG:cortisol binding affinity. Surface plasmon resonance was used to determine binding profiles of 19 steroids to haCBG and laCBG at 25, 37, and 39°C mimicking pyrexia and pH 7.4 and 7.0 mimicking acidosis, pathophysiological conditions relevant to sepsis. An expected 4-8-fold reduction in affinity for cortisol, cortisone, corticosterone, 11-deoxycortisol, progesterone, 17-hydroxyprogesterone, and prednisolone occurred with NE-mediated haCBG-to-laCBG conversion. CBG:cortisol binding affinity was further reduced 3.5-fold at 39°C relative to 37°C, binding affinity was also reduced by acidosis for both haCBG and laCBG. Using a conformational antibody generated against the RCL, we confirmed RCL antibody binding was eliminated by NE cleavage, but preserved in pyrexia and acidosis. Molecular modeling studies performed at 40°C confirmed a critical role for Trp371, positioned within the steroid-binding pocket, in ligand binding. These studies demonstrated CBG binding affinity to range of steroids is ligand specific and is reduced with NE-mediated haCBG-to-laCBG transition. Reduced CBG:cortisol binding occurs with increased temperature and in acidosis. Increased flexibility of the Trp371 side chain is proposed in the thermo-coupling mechanism of cortisol release. The synergy of NE cleavage, pyrexia, and acidosis on CBG:cortisol binding may serve to enhance cortisol delivery to the interstitial space in inflammation.
Collapse
Affiliation(s)
- Emily J Meyer
- Endocrine and Metabolic Unit, Royal Adelaide Hospital, Adelaide, South Australia, Australia.,Discipline of Medicine, University of Adelaide, Adelaide, South Australia, Australia.,Department of Endocrinology and Diabetes, The Queen Elizabeth Hospital, Adelaide, South Australia, Australia
| | - David J Torpy
- Endocrine and Metabolic Unit, Royal Adelaide Hospital, Adelaide, South Australia, Australia.,Discipline of Medicine, University of Adelaide, Adelaide, South Australia, Australia
| | - Anastasia Chernykh
- Department of Molecular Sciences, Macquarie University, Sydney, New South Wales, Australia
| | | | - Marni A Nenke
- Endocrine and Metabolic Unit, Royal Adelaide Hospital, Adelaide, South Australia, Australia.,Discipline of Medicine, University of Adelaide, Adelaide, South Australia, Australia.,Department of Endocrinology and Diabetes, The Queen Elizabeth Hospital, Adelaide, South Australia, Australia
| | - John G Lewis
- Steroid & Immunobiochemistry Laboratory, Canterbury Health Laboratories, Christchurch, New Zealand
| | - Harinda Rajapaksha
- Department of Biochemistry & Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria, Australia
| | - Wayne Rankin
- Endocrine and Metabolic Unit, Royal Adelaide Hospital, Adelaide, South Australia, Australia.,Discipline of Medicine, University of Adelaide, Adelaide, South Australia, Australia.,Chemical Pathology Directorate, SA Pathology, Adelaide, South Australia, Australia
| | - Steven W Polyak
- Clinical and Health Sciences, University of South Australia, Adelaide, South Australia, Australia
| |
Collapse
|
27
|
New insights into the cell- and tissue-specificity of glucocorticoid actions. Cell Mol Immunol 2020; 18:269-278. [PMID: 32868909 PMCID: PMC7456664 DOI: 10.1038/s41423-020-00526-2] [Citation(s) in RCA: 69] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 07/11/2020] [Accepted: 07/31/2020] [Indexed: 02/06/2023] Open
Abstract
Glucocorticoids (GCs) are endogenous hormones that are crucial for the homeostasis of the organism and adaptation to the external environment. Because of their anti-inflammatory effects, synthetic GCs are also extensively used in clinical practice. However, almost all cells in the body are sensitive to GC regulation. As a result, these mediators have pleiotropic effects, which may be undesirable or detrimental to human health. Here, we summarize the recent findings that contribute to deciphering the molecular mechanisms downstream of glucocorticoid receptor activation. We also discuss the complex role of GCs in infectious diseases such as sepsis and COVID-19, in which the balance between pathogen elimination and protection against excessive inflammation and immunopathology needs to be tightly regulated. An understanding of the cell type- and context-specific actions of GCs from the molecular to the organismal level would help to optimize their therapeutic use.
Collapse
|
28
|
Jiang G, Wang X, Sheng D, Zhou L, Liu Y, Xu C, Liu S, Zhang J. Cooperativity of co-factor NR2F2 with Pioneer Factors GATA3, FOXA1 in promoting ERα function. Theranostics 2019; 9:6501-6516. [PMID: 31588232 PMCID: PMC6771234 DOI: 10.7150/thno.34874] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2019] [Accepted: 06/17/2019] [Indexed: 12/19/2022] Open
Abstract
Estrogen receptor α (ERα) drives growth in the majority of human breast cancers by binding to regulatory elements and inducing transcriptional events that promote tumor growth. ERα binding activity largely depends on access to binding sites on chromatin, which is facilitated in part by Pioneer Factors (PFs). Transcription factors operate in complexes through thousands of genomic binding sites in a combinatorial fashion to control the expression of genes. However, the extent of crosstalk and cooperation between ERα pioneer factors and more collaborative transcription factors in breast cancer still remains to be elucidated systematically. Methods: Here, we determined the genomic binding information of 40 transcription-related factors and histone modifications with ChIP-seq in ENCODE and integrated it with other genomic information (RNA-seq, ATAC-seq, Gene microarray, 450k methylation chip, GRO-seq), forming a multi-dimension network to illuminate ERα associated transcription. Results: We show that transcription factor, NR2F2 binds to most sites independently of estrogen. Perturbation of NR2F2 expression decreases ERα DNA binding, chromatin openning, and estrogen-dependent cell growth. In the genome-wide analysis, we show that most binding events of NR2F2 and known pioneer factors FOXA1, GATA3 occur together, covering 85% of the ERα binding sites. Regions bound by all the three TFs appeared to be the most active, to have the strongest ERα binding and to be enriched for the super enhancers. Conclusions: The ERα binds to pre-accessible sites containing ERE elements bound by the three transcription factors (NR2F2, FOXA1 and GATA3).The three genes were also identified to correlate with decreased metastatic potential in patient cohorts and co-regulate each other. Together, our results suggest that NR2F2 is a cofactor with FOXA1 and GATA3 in ERα-mediated transcription.
Collapse
Affiliation(s)
- Guojuan Jiang
- State Key Laboratory of Medical Genomics, Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, P.R.China
| | - Xinrui Wang
- State Key Laboratory of Medical Genomics, Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, P.R.China
| | - Dandan Sheng
- Key Laboratory of Breast Cancer in Shanghai, Cancer Institute, Department of Breast Surgery; Institutes of Biomedical Sciences; Innovation Center for Cell Signaling Network; Fudan University Shanghai Cancer Center, Shanghai 200032, P.R.China
| | - Lei Zhou
- Key Laboratory of Breast Cancer in Shanghai, Cancer Institute, Department of Breast Surgery; Institutes of Biomedical Sciences; Innovation Center for Cell Signaling Network; Fudan University Shanghai Cancer Center, Shanghai 200032, P.R.China
| | - Yang Liu
- State Key Laboratory of Medical Genomics, Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, P.R.China
| | - Congling Xu
- State Key Laboratory of Medical Genomics, Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, P.R.China
| | - Suling Liu
- Key Laboratory of Breast Cancer in Shanghai, Cancer Institute, Department of Breast Surgery; Institutes of Biomedical Sciences; Innovation Center for Cell Signaling Network; Fudan University Shanghai Cancer Center, Shanghai 200032, P.R.China
| | - Ji Zhang
- State Key Laboratory of Medical Genomics, Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, P.R.China
| |
Collapse
|
29
|
Mousavian Z, Nowzari-Dalini A, Rahmatallah Y, Masoudi-Nejad A. Differential network analysis and protein-protein interaction study reveals active protein modules in glucocorticoid resistance for infant acute lymphoblastic leukemia. Mol Med 2019; 25:36. [PMID: 31370801 PMCID: PMC6676637 DOI: 10.1186/s10020-019-0106-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Accepted: 07/24/2019] [Indexed: 01/24/2023] Open
Abstract
BACKGROUND Acute lymphoblastic leukemia (ALL) is the most common type of cancer diagnosed in children and Glucocorticoids (GCs) form an essential component of the standard chemotherapy in most treatment regimens. The category of infant ALL patients carrying a translocation involving the mixed lineage leukemia (MLL) gene (gene KMT2A) is characterized by resistance to GCs and poor clinical outcome. Although some studies examined GC-resistance in infant ALL patients, the understanding of this phenomenon remains limited and impede the efforts to improve prognosis. METHODS This study integrates differential co-expression (DC) and protein-protein interaction (PPI) networks to find active protein modules associated with GC-resistance in MLL-rearranged infant ALL patients. A network was constructed by linking differentially co-expressed gene pairs between GC-resistance and GC-sensitive samples and later integrated with PPI networks by keeping the links that are also present in the PPI network. The resulting network was decomposed into two sub-networks, specific to each phenotype. Finally, both sub-networks were clustered into modules using weighted gene co-expression network analysis (WGCNA) and further analyzed with functional enrichment analysis. RESULTS Through the integration of DC analysis and PPI network, four protein modules were found active under the GC-resistance phenotype but not under the GC-sensitive. Functional enrichment analysis revealed that these modules are related to proteasome, electron transport chain, tRNA-aminoacyl biosynthesis, and peroxisome signaling pathways. These findings are in accordance with previous findings related to GC-resistance in other hematological malignancies such as pediatric ALL. CONCLUSIONS Differential co-expression analysis is a promising approach to incorporate the dynamic context of gene expression profiles into the well-documented protein interaction networks. The approach allows the detection of relevant protein modules that are highly enriched with DC gene pairs. Functional enrichment analysis of detected protein modules generates new biological hypotheses and may help in explaining the GC-resistance in MLL-rearranged infant ALL patients.
Collapse
Affiliation(s)
- Zaynab Mousavian
- School of Mathematics, Statistics, and Computer Science, College of Science, University of Tehran, Tehran, Iran
- Laboratory of Systems Biology and Bioinformatics (LBB), Institute of Biochemistry and Biophysics, University of Tehran, Tehran, Iran
| | - Abbas Nowzari-Dalini
- School of Mathematics, Statistics, and Computer Science, College of Science, University of Tehran, Tehran, Iran
| | - Yasir Rahmatallah
- Department of Biomedical Informatics, University of Arkansas for Medical Sciences, Little Rock, AR 72205 USA
| | - Ali Masoudi-Nejad
- Laboratory of Systems Biology and Bioinformatics (LBB), Institute of Biochemistry and Biophysics, University of Tehran, Tehran, Iran
| |
Collapse
|
30
|
TNF-α inhibits glucocorticoid receptor-induced gene expression by reshaping the GR nuclear cofactor profile. Proc Natl Acad Sci U S A 2019; 116:12942-12951. [PMID: 31182584 DOI: 10.1073/pnas.1821565116] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Glucocorticoid resistance (GCR) is defined as an unresponsiveness to the therapeutic effects, including the antiinflammatory ones of glucocorticoids (GCs) and their receptor, the glucocorticoid receptor (GR). It is a problem in the management of inflammatory diseases and can be congenital as well as acquired. The strong proinflammatory cytokine TNF-alpha (TNF) induces an acute form of GCR, not only in mice, but also in several cell lines: e.g., in the hepatoma cell line BWTG3, as evidenced by impaired Dexamethasone (Dex)-stimulated direct GR-dependent gene up- and down-regulation. We report that TNF has a significant and broad impact on this transcriptional performance of GR, but no impact on nuclear translocation, dimerization, or DNA binding capacity of GR. Proteome-wide proximity-mapping (BioID), however, revealed that the GR interactome was strongly modulated by TNF. One GR cofactor that interacted significantly less with the receptor under GCR conditions is p300. NFκB activation and p300 knockdown both reduced direct transcriptional output of GR whereas p300 overexpression and NFκB inhibition reverted TNF-induced GCR, which is in support of a cofactor reshuffle model. This hypothesis was supported by FRET studies. This mechanism of GCR opens avenues for therapeutic interventions in GCR diseases.
Collapse
|
31
|
Johnson JD, Barnard DF, Kulp AC, Mehta DM. Neuroendocrine Regulation of Brain Cytokines After Psychological Stress. J Endocr Soc 2019; 3:1302-1320. [PMID: 31259292 PMCID: PMC6595533 DOI: 10.1210/js.2019-00053] [Citation(s) in RCA: 66] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Accepted: 05/06/2019] [Indexed: 12/22/2022] Open
Abstract
There is growing evidence that stress-induced brain cytokines are important in the etiology of depression and anxiety. Here, we review how the neuroendocrine responses to psychological stressors affect the immediate and long-term regulation of inflammatory cytokines within the brain and highlight how the regulation changes across time with repeated stress exposure. In doing so, we report on the percentage of studies in the literature that observed increases in either IL-1β, TNF-α, or IL-6 within the hypothalamus, hippocampus, or prefrontal cortex after either acute or chronic stress exposure. The key takeaway is that catecholamines and glucocorticoids play critical roles in the regulation of brain cytokines after psychological stress exposure. Central catecholamines stimulate the release of IL-1β from microglia, which is a key factor in the further activation of microglia and recruitment of monocytes into the brain. Meanwhile, the acute elevation of glucocorticoids inhibits the production of brain cytokines via two mechanisms: the suppression of noradrenergic locus coeruleus neurons and inhibition of the NFκB signaling pathway. However, glucocorticoids and peripheral catecholamines facilitate inflammatory responses to future stimuli by stimulating monocytes to leave the bone marrow, downregulating inhibitory receptors on microglia, and priming inflammatory responses mediated by peripheral monocytes or macrophages. The activation of microglia and the elevation of peripheral glucocorticoid and catecholamine levels are both necessary during times of stress exposure for the development of psychopathologies.
Collapse
Affiliation(s)
- John D Johnson
- Kent State University, Biological Sciences Department, School of Biomedical Sciences, Kent, Ohio
| | - David F Barnard
- Kent State University, Biological Sciences Department, School of Biomedical Sciences, Kent, Ohio
| | - Adam C Kulp
- Kent State University, Biological Sciences Department, School of Biomedical Sciences, Kent, Ohio
| | - Devanshi M Mehta
- Kent State University, Biological Sciences Department, School of Biomedical Sciences, Kent, Ohio
| |
Collapse
|
32
|
Petta I, Peene I, Elewaut D, Vereecke L, De Bosscher K. Risks and benefits of corticosteroids in arthritic diseases in the clinic. Biochem Pharmacol 2019; 165:112-125. [PMID: 30978323 DOI: 10.1016/j.bcp.2019.04.009] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Accepted: 04/08/2019] [Indexed: 02/06/2023]
Abstract
Glucocorticoids (GCs) constitute a first line treatment for many autoimmune and inflammatory diseases. Due to their potent anti-inflammatory and immunosuppressive actions, GCs are added frequently to disease modifying antirheumatic drugs (DMARDs) in various arthritic diseases, such as rheumatoid arthritis. However, their prolonged administration or administration at high doses is associated with adverse effects that may be (quality of) life-threatening, including osteoporosis, metabolic, gastrointestinal and cardiovascular side effects. In this review, we summarize the clinical and pharmacological effects of GCs in different arthritic diseases, while documenting the current research efforts towards the identification of novel and more efficient GCs with reduced side effects.
Collapse
Affiliation(s)
- Ioanna Petta
- Department of Rheumatology, Faculty of Medicine and Health Sciences, Host-Microbiota Interaction Lab (HMI) and Laboratory for Molecular Immunology and Inflammation, Ghent University, Corneel Heymanslaan 10, 9000 Ghent, Belgium; VIB Center for Inflammation Research (IRC), Ghent University, Technologiepark 71 - Zwijnaarde, 9052 Ghent, Belgium; Ghent Gut Inflammation Group (GGIG), Ghent University, Ghent, Belgium
| | - Isabelle Peene
- Department of Rheumatology, Faculty of Medicine and Health Sciences, Host-Microbiota Interaction Lab (HMI) and Laboratory for Molecular Immunology and Inflammation, Ghent University, Corneel Heymanslaan 10, 9000 Ghent, Belgium; VIB Center for Inflammation Research (IRC), Ghent University, Technologiepark 71 - Zwijnaarde, 9052 Ghent, Belgium; Department of Rheumatology, AZ SintJan, Ruddershove 10, 8000 Brugge, Belgium
| | - Dirk Elewaut
- Department of Rheumatology, Faculty of Medicine and Health Sciences, Host-Microbiota Interaction Lab (HMI) and Laboratory for Molecular Immunology and Inflammation, Ghent University, Corneel Heymanslaan 10, 9000 Ghent, Belgium; VIB Center for Inflammation Research (IRC), Ghent University, Technologiepark 71 - Zwijnaarde, 9052 Ghent, Belgium; Ghent Gut Inflammation Group (GGIG), Ghent University, Ghent, Belgium
| | - Lars Vereecke
- Department of Rheumatology, Faculty of Medicine and Health Sciences, Host-Microbiota Interaction Lab (HMI) and Laboratory for Molecular Immunology and Inflammation, Ghent University, Corneel Heymanslaan 10, 9000 Ghent, Belgium; VIB Center for Inflammation Research (IRC), Ghent University, Technologiepark 71 - Zwijnaarde, 9052 Ghent, Belgium; Ghent Gut Inflammation Group (GGIG), Ghent University, Ghent, Belgium
| | - Karolien De Bosscher
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium; Translational Nuclear Receptor Research, VIB Center for Medical Biotechnology, Albert Baertsoenkaai 3, 9000, Ghent, Belgium.
| |
Collapse
|
33
|
Delaleu J, Destere A, Hachon L, Declèves X, Lloret-Linares C. Glucocorticoids dosing in obese subjects: A systematic review. Therapie 2019; 74:451-458. [PMID: 30928086 DOI: 10.1016/j.therap.2018.11.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Revised: 10/08/2018] [Accepted: 11/19/2018] [Indexed: 12/18/2022]
Abstract
Glucocorticoids (GCs) are amongst the most widely used and effective treatments to control inflammatory and autoimmune diseases. In obese subjects, drug dosing adjusted by body weight is problematic, all the more so as patients are at higher risk of GC metabolic side effects. We propose here to describe the determinants of drug pharmacokinetics (PK) in obese subjects and GC pharmacology, and to identify the existing PK studies that may help discussing the best size descriptor for GC dosing in obese subjects. A clinician and a pharmacist screened PubMed using the MeSH Terms: "glucocorticoids" OR "steroidal agents" AND "pharmacokinetics" AND "obesity" OR "overweight". The search was limited to the publications written in English language and to those performed in humans. A systematic search using the MeSH terms was performed until August 31st, 2017. Only three such PK studies have been published so far that compare dexamethasone, prednisolone and methylprednisolone in obese and normal weight subjects. The studies concur that GC partially distribute in the excess of body weight and that adjustment by total body weight (TBW) or by body weight (BW) excess would increase the initial plasma GC concentration after a loading dose and would thus be inappropriate. Contradictory results are observed regarding GC exposure or clearance according to the GC studied. Behind this overwhelming lack of conclusive evidence for adjusting GC by body weight, further PK studies are clearly needed for guiding their dosing. Furthermore, studies demonstrated an increased sensibility to GC, even when GC exposure was reduced, suggesting that adjustment by body weight may not only be unnecessary but also dangerous.
Collapse
Affiliation(s)
- Jérémie Delaleu
- Assistance Publique-Hôpitaux de Paris, Hôpital Lariboisière, Department of Internal Medicine, 75010 Paris, France
| | - Alexandre Destere
- CHU de Limoges, Department of Pharmacology and Toxicology, 87000 Limoges, France
| | - Lorry Hachon
- Assistance Publique-Hôpitaux de Paris (AP-HP), Pharmacy Department, Hôpital Cochin, 75014 Paris, France
| | - Xavier Declèves
- INSERM, UMR-S 1144 Université Paris Descartes-Paris Diderot, variabilité de réponse aux psychotropes, 75006 Paris, France; Assistance Publique-Hôpitaux de Paris, Hôpital Cochin, Pharmacokinetics and Pharmacochemistry Unit, 75014 Paris, France
| | - Célia Lloret-Linares
- Groupe Ramsay-Générale de Santé, Hôpital Privé Pays de Savoie, Maladies Nutritionnelles et Métaboliques, 74100 Annemasse, France.
| |
Collapse
|
34
|
Kovačević S, Nestorov J, Matić G, Elaković I. Chronic Stress Combined with a Fructose Diet Reduces Hypothalamic Insulin Signaling and Antioxidative Defense in Female Rats. Neuroendocrinology 2019; 108:278-290. [PMID: 30572328 DOI: 10.1159/000496391] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Accepted: 12/19/2018] [Indexed: 11/19/2022]
Abstract
BACKGROUND Increased fructose consumption and chronic exposure to stress have been associated with the development of obesity and insulin resistance. In the hypothalamus, a crossroad of stress responses and energy balance, insulin and glucocorticoids regulate the expression of orexigenic neuropeptides, neuropeptide Y (NPY) and agouti-related protein (AgRP), and anorexigenic neuropeptides, proopio-melanocortin (POMC) and cocaine- and amphetamine-regulated transcript (CART). OBJECTIVES We investigated whether chronic stress and fructose diet disrupt these hormonal signaling pathways and appetite control in the hypothalamus, contributing to the development of insulin resistance and obesity. Potential roles of hypothalamic inflammation and oxidative stress in the development of insulin resistance were also analyzed. METHODS Insulin, glucocorticoid, and leptin signaling, expression of orexigenic and anorexigenic neuropeptides, and antioxidative and inflammatory statuses in the whole hypothalamus of fructose-fed female rats exposed to unpredictable stress for 9 weeks were analyzed using quantitative PCR and Western blotting. RESULTS Chronic stress combined with a fructose-enriched diet reduced protein content and stimulatory phosphorylation of Akt kinase, and elevated 11β-hydroxysteroid dehydrogenase 1 and glucocorticoid receptor expression, while alterations in appetite regulation (NPY, AgRP, POMC, CART, leptin receptor, and SOCS3 expression) were not observed. The expression of antioxidative defense enzymes (mitochondrial manganese superoxide dismutase 2, glutathione reductase, and catalase) and proinflammatory cytokines (IL-1β, IL-6, and TNFα) was reduced. CONCLUSIONS Our results underline the combination of long-term stress exposure and fructose overconsumption as more detrimental for hypothalamic function than for either of the factors separately, as it enhanced glucocorticoid and impaired insulin signaling, antioxidative -defense, and inflammatory responses of this homeostasis- regulating center.
Collapse
Affiliation(s)
- Sanja Kovačević
- Department of Biochemistry, Institute for Biological Research Siniša Stanković, University of Belgrade, Belgrade, Serbia
| | - Jelena Nestorov
- Department of Biochemistry, Institute for Biological Research Siniša Stanković, University of Belgrade, Belgrade, Serbia
| | - Gordana Matić
- Department of Biochemistry, Institute for Biological Research Siniša Stanković, University of Belgrade, Belgrade, Serbia
| | - Ivana Elaković
- Department of Biochemistry, Institute for Biological Research Siniša Stanković, University of Belgrade, Belgrade, Serbia,
| |
Collapse
|
35
|
Caratti G, Iqbal M, Hunter L, Kim D, Wang P, Vonslow RM, Begley N, Tetley AJ, Woodburn JL, Pariollaud M, Maidstone R, Donaldson IJ, Zhang Z, Ince LM, Kitchen G, Baxter M, Poolman TM, Daniels DA, Stirling DR, Brocker C, Gonzalez F, Loudon AS, Bechtold DA, Rattray M, Matthews LC, Ray DW. REVERBa couples the circadian clock to hepatic glucocorticoid action. J Clin Invest 2018; 128:4454-4471. [PMID: 30179226 PMCID: PMC6160001 DOI: 10.1172/jci96138] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2017] [Accepted: 07/18/2018] [Indexed: 01/15/2023] Open
Abstract
The glucocorticoid receptor (GR) is a major drug target in inflammatory disease. However, chronic glucocorticoid (GC) treatment leads to disordered energy metabolism, including increased weight gain, adiposity, and hepatosteatosis — all programs modulated by the circadian clock. We demonstrated that while antiinflammatory GC actions were maintained irrespective of dosing time, the liver was significantly more GC sensitive during the day. Temporal segregation of GC action was underpinned by a physical interaction of GR with the circadian transcription factor REVERBa and co-binding with liver-specific hepatocyte nuclear transcription factors (HNFs) on chromatin. REVERBa promoted efficient GR recruitment to chromatin during the day, acting in part by maintaining histone acetylation, with REVERBa-dependent GC responses providing segregation of carbohydrate and lipid metabolism. Importantly, deletion of Reverba inverted circadian liver GC sensitivity and protected mice from hepatosteatosis induced by chronic GC administration. Our results reveal a mechanism by which the circadian clock acts through REVERBa in liver on elements bound by HNF4A/HNF6 to direct GR action on energy metabolism.
Collapse
Affiliation(s)
- Giorgio Caratti
- Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Sciences Centre, and Specialist Medicine, Central Manchester Foundation Trust, Manchester, United Kingdom
| | - Mudassar Iqbal
- Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Sciences Centre, and Specialist Medicine, Central Manchester Foundation Trust, Manchester, United Kingdom
| | - Louise Hunter
- Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Sciences Centre, and Specialist Medicine, Central Manchester Foundation Trust, Manchester, United Kingdom
| | - Donghwan Kim
- Laboratory of Metabolism, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, Maryland, USA
| | - Ping Wang
- Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Sciences Centre, and Specialist Medicine, Central Manchester Foundation Trust, Manchester, United Kingdom
| | - Ryan M Vonslow
- Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Sciences Centre, and Specialist Medicine, Central Manchester Foundation Trust, Manchester, United Kingdom
| | - Nicola Begley
- Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Sciences Centre, and Specialist Medicine, Central Manchester Foundation Trust, Manchester, United Kingdom
| | - Abigail J Tetley
- Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Sciences Centre, and Specialist Medicine, Central Manchester Foundation Trust, Manchester, United Kingdom
| | - Joanna L Woodburn
- Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Sciences Centre, and Specialist Medicine, Central Manchester Foundation Trust, Manchester, United Kingdom
| | - Marie Pariollaud
- Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Sciences Centre, and Specialist Medicine, Central Manchester Foundation Trust, Manchester, United Kingdom
| | - Robert Maidstone
- Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Sciences Centre, and Specialist Medicine, Central Manchester Foundation Trust, Manchester, United Kingdom
| | - Ian J Donaldson
- Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Sciences Centre, and Specialist Medicine, Central Manchester Foundation Trust, Manchester, United Kingdom
| | - Zhenguang Zhang
- Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Sciences Centre, and Specialist Medicine, Central Manchester Foundation Trust, Manchester, United Kingdom
| | - Louise M Ince
- Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Sciences Centre, and Specialist Medicine, Central Manchester Foundation Trust, Manchester, United Kingdom
| | - Gareth Kitchen
- Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Sciences Centre, and Specialist Medicine, Central Manchester Foundation Trust, Manchester, United Kingdom
| | - Matthew Baxter
- Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Sciences Centre, and Specialist Medicine, Central Manchester Foundation Trust, Manchester, United Kingdom
| | - Toryn M Poolman
- Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Sciences Centre, and Specialist Medicine, Central Manchester Foundation Trust, Manchester, United Kingdom
| | - Dion A Daniels
- Biopharmaceutical Molecular Discovery, GlaxoSmithKline, Medicines Research Centre, Stevenage, United Kingdom
| | - David R Stirling
- Biopharmaceutical Molecular Discovery, GlaxoSmithKline, Medicines Research Centre, Stevenage, United Kingdom
| | - Chad Brocker
- Laboratory of Metabolism, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, Maryland, USA
| | - Frank Gonzalez
- Laboratory of Metabolism, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, Maryland, USA
| | - Andrew Si Loudon
- Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Sciences Centre, and Specialist Medicine, Central Manchester Foundation Trust, Manchester, United Kingdom
| | - David A Bechtold
- Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Sciences Centre, and Specialist Medicine, Central Manchester Foundation Trust, Manchester, United Kingdom
| | - Magnus Rattray
- Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Sciences Centre, and Specialist Medicine, Central Manchester Foundation Trust, Manchester, United Kingdom
| | - Laura C Matthews
- Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Sciences Centre, and Specialist Medicine, Central Manchester Foundation Trust, Manchester, United Kingdom.,Leeds Institute of Cancer and Pathology, Faculty of Medicine and Health, University of Leeds, Leeds, United Kingdom
| | - David W Ray
- Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Sciences Centre, and Specialist Medicine, Central Manchester Foundation Trust, Manchester, United Kingdom.,Oxford Centre for Diabetes, Endocrinology and Metabolism, University of Oxford, Oxford, United Kingdom
| |
Collapse
|
36
|
Souffriau J, Eggermont M, Van Ryckeghem S, Van Looveren K, Van Wyngene L, Van Hamme E, Vuylsteke M, Beyaert R, De Bosscher K, Libert C. A screening assay for Selective Dimerizing Glucocorticoid Receptor Agonists and Modulators (SEDIGRAM) that are effective against acute inflammation. Sci Rep 2018; 8:12894. [PMID: 30150712 PMCID: PMC6110732 DOI: 10.1038/s41598-018-31150-w] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Accepted: 08/13/2018] [Indexed: 02/07/2023] Open
Abstract
It has been suggested that glucocorticoid receptor (GR) agonists that promote GR homodimerization more than standard glucocorticoids such as Dexamethasone could be more effective anti-inflammatory molecules against acute and life-threatening inflammatory conditions. To test this hypothesis, we set up a screening pipeline aimed at discovering such Selective Dimerizing GR Agonists and Modulators (SEDIGRAM). The pipeline consists of a reporter gene assay based on a palindromic glucocorticoid responsive element (GRE). This assay represents GR dimerization in human A549 lung epithelial cells. In the pipeline, this is followed by analysis of endogenous GRE-driven gene expression, a FRET assay confirming dimerization, and monitoring of in vitro and in vivo anti-inflammatory activity. In a proof of principle experiment, starting from seven candidate compounds, we identified two potentially interesting compounds (Cortivazol and AZD2906) that confer strong protection in a mouse model of aggressive TNF-induced lethal inflammation. A screening pipeline for SEDIGRAM may assist the search for compounds that promote GR dimerization and limit overwhelming acute inflammatory responses.
Collapse
Affiliation(s)
- Jolien Souffriau
- Center for Inflammation Research, VIB, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Melanie Eggermont
- Center for Inflammation Research, VIB, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Sara Van Ryckeghem
- Center for Inflammation Research, VIB, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Kelly Van Looveren
- Center for Inflammation Research, VIB, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Lise Van Wyngene
- Center for Inflammation Research, VIB, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Evelien Van Hamme
- Bio Imaging Core, Center for Inflammation Research, VIB, Ghent, Belgium
| | | | - Rudi Beyaert
- Center for Inflammation Research, VIB, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Karolien De Bosscher
- Receptor Research Laboratories, Nuclear Receptor Lab, Center for Medical Biotechnology Center, VIB, Ghent, Belgium.,Department of Biochemistry, Ghent University, Ghent, Belgium
| | - Claude Libert
- Center for Inflammation Research, VIB, Ghent, Belgium. .,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium.
| |
Collapse
|
37
|
Zhao X, Hwang DY, Kao HY. The Role of Glucocorticoid Receptors in Podocytes and Nephrotic Syndrome. NUCLEAR RECEPTOR RESEARCH 2018; 5. [PMID: 30417008 PMCID: PMC6224173 DOI: 10.11131/2018/101323] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Glucocorticoid receptor (GC), a founding member of the nuclear hormone receptor superfamily, is a glucocorticoid-activated transcription factor that regulates gene expression and controls the development and homeostasis of human podocytes. Synthetic glucocorticoids are the standard treatment regimens for proteinuria (protein in the urine) and nephrotic syndrome (NS) caused by kidney diseases. These include minimal change disease (MCD), focal segmental glomerulosclerosis (FSGS), membranous nephropathy (MN) and immunoglobulin A nephropathy (IgAN) or subsequent complications due to diabetes mellitus or HIV infection. However, unwanted side effects and steroid-resistance remain major issues for their long-term use. Furthermore, the mechanism by which glucocorticoids elicit their renoprotective activity in podocyte and glomeruli is poorly understood. Podocytes are highly differentiated epithelial cells that contribute to the integrity of kidney glomerular filtration barrier. Injury or loss of podocytes leads to proteinuria and nephrotic syndrome. Recent studies in multiple experimental models have begun to explore the mechanism of GC action in podocytes. This review will discuss progress in our understanding of the role of glucocorticoid receptor and glucocorticoids in podocyte physiology and their renoprotective activity in nephrotic syndrome.
Collapse
Affiliation(s)
- Xuan Zhao
- Department of Biochemistry, School of Medicine, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, USA
| | - Daw-Yang Hwang
- Division of Nephrology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Hung-Ying Kao
- Department of Biochemistry, School of Medicine, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, USA
| |
Collapse
|
38
|
Cianchetti S, Cardini C, Corti A, Menegazzi M, Darra E, Ingrassia E, Pompella A, Paggiaro P. The beclomethasone anti-inflammatory effect occurs in cell/mediator-dependent manner and is additively enhanced by formoterol: NFkB, p38, PKA analysis. Life Sci 2018; 203:27-38. [PMID: 29660434 DOI: 10.1016/j.lfs.2018.04.015] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2018] [Revised: 04/10/2018] [Accepted: 04/11/2018] [Indexed: 12/16/2022]
Abstract
AIMS Beclomethasone/formoterol (BDP/FOR) has been reported to be more effective than its separate components in airway disease control and in airway inflammation improvement. However, BDP/FOR effects on cytokine-induced inflammation in structural cells have not been described and whether these effects occur in a cell- and mediator-dependent manner has not been fully elucidated. We sought to evaluate BDP and/or FOR effects on endothelial ICAM-1, E-selectin, IL-8 and on bronchial epithelial ICAM-1 and IL-8. Specific intracellular signaling pathways were also investigated. MATERIALS AND METHODS Surface adhesion molecule expression and IL-8 release induced by TNF-alpha were measured by ELISA. Intracellular signaling pathways were investigated by a) EMSA and Western blot analysis to evaluate NF-κB DNA-binding and MAPK-p38 phosphorylation; b) PDTC/SB203580 as NF-κB/p38 inhibitors; c) forskolin/H-89 as PKA activator/inhibitor. KEY FINDINGS BDP/FOR additively reduced endothelial E-selectin and IL-8 as well as bronchial epithelial ICAM-1 and IL-8. BDP/FOR and SB203580 showed the highest inhibitory effect on epithelial IL-8, whereas endothelial ICAM-1 was never affected by BDP/FOR and PDTC. TNF-alpha-induced NF-κB DNA-binding and MAPK-p38 phosphorylation were not influenced by BDP/FOR. Forskolin mimicked FOR effects; H-89 partially reversed the BDP/FOR inhibition in a mediator-dependent manner. SIGNIFICANCE The BDP/FOR inhibition degree was related to the inflammatory mediator- and cell-type considered. FOR additively enhanced BDP effects by partially involving both dependent- and independent-PKA mechanisms. Our results might contribute to highlight the strong relationship between specific molecular pathways and different sensitivity to the corticosteroid/β2-agonist effects and to clarify the molecular mechanisms underlying the BDP/FOR anti-inflammatory activity in vivo.
Collapse
Affiliation(s)
- Silvana Cianchetti
- Department of Surgery and Medical, Molecular, and Critical Area Pathology, Medical School, University of Pisa, Pisa, Italy.
| | - Cristina Cardini
- Department of Surgery and Medical, Molecular, and Critical Area Pathology, Medical School, University of Pisa, Pisa, Italy
| | - Alessandro Corti
- Department of Translational Research and New Technologies in Medicine and Surgery, Medical School, University of Pisa, Pisa, Italy
| | - Marta Menegazzi
- Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Verona, Italy
| | - Elena Darra
- Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Verona, Italy
| | | | - Alfonso Pompella
- Department of Translational Research and New Technologies in Medicine and Surgery, Medical School, University of Pisa, Pisa, Italy
| | - Pierluigi Paggiaro
- Department of Surgery and Medical, Molecular, and Critical Area Pathology, Medical School, University of Pisa, Pisa, Italy
| |
Collapse
|
39
|
Misale MS, Witek Janusek L, Tell D, Mathews HL. Chromatin organization as an indicator of glucocorticoid induced natural killer cell dysfunction. Brain Behav Immun 2018; 67:279-289. [PMID: 28911980 PMCID: PMC5696065 DOI: 10.1016/j.bbi.2017.09.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/08/2017] [Revised: 09/01/2017] [Accepted: 09/08/2017] [Indexed: 11/19/2022] Open
Abstract
It is well-established that psychological distress reduces natural killer cell immune function and that this reduction can be due to the stress-induced release of glucocorticoids. Glucocorticoids are known to alter epigenetic marks associated with immune effector loci, and are also known to influence chromatin organization. The purpose of this investigation was to assess the effect of glucocorticoids on natural killer cell chromatin organization and to determine the relationship of chromatin organization to natural killer cell effector function, e.g. interferon gamma production. Interferon gamma production is the prototypic cytokine produced by natural killer cells and is known to modulate both innate and adaptive immunity. Glucocorticoid treatment of human peripheral blood mononuclear cells resulted in a significant reduction in interferon gamma production. Glucocorticoid treatment also resulted in a demonstrable natural killer cell nuclear phenotype. This phenotype was localization of the histone, post-translational epigenetic mark, H3K27me3, to the nuclear periphery. Peripheral nuclear localization of H3K27me3 was directly related to cellular levels of interferon gamma. This nuclear phenotype was determined by direct visual inspection and by use of an automated, high through-put technology, the Amnis ImageStream. This technology combines the per-cell information content provided by standard microscopy with the statistical significance afforded by large sample sizes common to standard flow cytometry. Most importantly, this technology provides for a direct assessment of the localization of signal intensity within individual cells. The results demonstrate glucocorticoids to dysregulate natural killer cell function at least in part through altered H3K27me3 nuclear organization and demonstrate H3K27me3 chromatin organization to be a predictive indicator of glucocorticoid induced immune dysregulation of natural killer cells.
Collapse
Affiliation(s)
- Michael S Misale
- Department of Microbiology and Immunology, Stritch School of Medicine, Loyola University Chicago, Health Science Division, 2160 South First Ave., Maywood, IL 60153, United States
| | - Linda Witek Janusek
- Marcella Niehoff School of Nursing, Department of Health Promotion, Loyola University Chicago, Health Science Division, 2160 South First Ave., Maywood, IL 60153, United States
| | - Dina Tell
- Marcella Niehoff School of Nursing, Department of Health Promotion, Loyola University Chicago, Health Science Division, 2160 South First Ave., Maywood, IL 60153, United States
| | - Herbert L Mathews
- Department of Microbiology and Immunology, Stritch School of Medicine, Loyola University Chicago, Health Science Division, 2160 South First Ave., Maywood, IL 60153, United States.
| |
Collapse
|
40
|
The nature of the GRE influences the screening for GR-activity enhancing modulators. PLoS One 2017; 12:e0181101. [PMID: 28686666 PMCID: PMC5501670 DOI: 10.1371/journal.pone.0181101] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Accepted: 06/25/2017] [Indexed: 12/17/2022] Open
Abstract
Glucocorticoid resistance (GCR), i.e. unresponsiveness to the beneficial anti-inflammatory activities of the glucocorticoid receptor (GR), poses a serious problem in the treatment of inflammatory diseases. One possible solution to try and overcome GCR, is to identify molecules that prevent or revert GCR by hyper-stimulating the biological activity of the GR. To this purpose, we screened for compounds that potentiate the dexamethasone (Dex)-induced transcriptional activity of GR. To monitor GR transcriptional activity, the screen was performed using the lung epithelial cell line A549 in which a glucocorticoid responsive element (GRE) coupled to a luciferase reporter gene construct was stably integrated. Histone deacetylase inhibitors (HDACi) such as Vorinostat and Belinostat are two broad-spectrum HDACi that strongly increased the Dex-induced luciferase expression in our screening system. In sharp contrast herewith, results from a genome-wide transcriptome analysis of Dex-induced transcripts using RNAseq, revealed that Belinostat impairs the ability of GR to transactivate target genes. The stimulatory effect of Belinostat in the luciferase screen further depends on the nature of the reporter construct. In conclusion, a profound discrepancy was observed between HDACi effects on two different synthetic promoter-luciferase reporter systems. The favorable effect of HDACi on gene expression should be evaluated with care, when considering them as potential therapeutic agents. GEO accession number GSE96649.
Collapse
|
41
|
Bekhbat M, Rowson SA, Neigh GN. Checks and balances: The glucocorticoid receptor and NFĸB in good times and bad. Front Neuroendocrinol 2017; 46:15-31. [PMID: 28502781 PMCID: PMC5523465 DOI: 10.1016/j.yfrne.2017.05.001] [Citation(s) in RCA: 79] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Revised: 04/21/2017] [Accepted: 05/09/2017] [Indexed: 01/23/2023]
Abstract
Mutual regulation and balance between the endocrine and immune systems facilitate an organism's stress response and are impaired following chronic stress or prolonged immune activation. Concurrent alterations in stress physiology and immunity are increasingly recognized as contributing factors to several stress-linked neuropsychiatric disorders including depression, anxiety, and post-traumatic stress disorder. Accumulating evidence suggests that impaired balance and crosstalk between the glucocorticoid receptor (GR) and nuclear factor kappa-light-chain-enhancer of activated B cells (NFκB) - effectors of the stress and immune axes, respectively - may play a key role in mediating the harmful effects of chronic stress on mood and behavior. Here, we first review the molecular mechanisms of GR and NFκB interactions in health, then describe potential shifts in the GR-NFκB dynamics in chronic stress conditions within the context of brain circuitry relevant to neuropsychiatric diseases. Furthermore, we discuss developmental influences and sex differences in the regulation of these two transcription factors.
Collapse
Affiliation(s)
- Mandakh Bekhbat
- Emory University, Graduate Division of Biological Sciences, Neuroscience Graduate Program, United States
| | - Sydney A Rowson
- Emory University, Graduate Division of Biological Sciences, Molecular and Systems Pharmacology Graduate Studies Program, United States
| | - Gretchen N Neigh
- Virginia Commonwealth University, Department of Anatomy & Neurobiology, United States.
| |
Collapse
|
42
|
Abstract
Glucocorticoids (GCs; referred to clinically as corticosteroids) are steroid hormones with potent anti-inflammatory and immune modulatory profiles. Depending on the context, these hormones can also mediate pro-inflammatory activities, thereby serving as primers of the immune system. Their target receptor, the GC receptor (GR), is a multi-tasking transcription factor, changing its role and function depending on cellular and organismal needs. To get a clearer idea of how to improve the safety profile of GCs, recent studies have investigated the complex mechanisms underlying GR functions. One of the key findings includes both pro- and anti-inflammatory roles of GR, and a future challenge will be to understand how such paradoxical findings can be reconciled and how GR ultimately shifts the balance to a net anti-inflammatory profile. As such, there is consensus that GR deserves a second life as a drug target, with either refined classic GCs or a novel generation of nonsteroidal GR-targeting molecules, to meet the increasing clinical needs of today to treat inflammation and cancer.
Collapse
|
43
|
Weikum ER, Knuesel MT, Ortlund EA, Yamamoto KR. Glucocorticoid receptor control of transcription: precision and plasticity via allostery. Nat Rev Mol Cell Biol 2017; 18:159-174. [PMID: 28053348 PMCID: PMC6257982 DOI: 10.1038/nrm.2016.152] [Citation(s) in RCA: 342] [Impact Index Per Article: 48.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The glucocorticoid receptor (GR) is a constitutively expressed transcriptional regulatory factor (TRF) that controls many distinct gene networks, each uniquely determined by particular cellular and physiological contexts. The precision of GR-mediated responses seems to depend on combinatorial, context-specific assembly of GR-nucleated transcription regulatory complexes at genomic response elements. In turn, evidence suggests that context-driven plasticity is conferred by the integration of multiple signals, each serving as an allosteric effector of GR conformation, a key determinant of regulatory complex composition and activity. This structural and mechanistic perspective on GR regulatory specificity is likely to extend to other eukaryotic TRFs.
Collapse
Affiliation(s)
- Emily R Weikum
- Department of Biochemistry, Emory University School of Medicine, 1510 Clifton Road, Atlanta, Georgia 30322, USA
| | - Matthew T Knuesel
- Department of Cellular and Molecular Pharmacology, University of California San Francisco School of Medicine, 600 16th Street, San Francisco, California 94143, USA
| | - Eric A Ortlund
- Department of Biochemistry, Emory University School of Medicine, 1510 Clifton Road, Atlanta, Georgia 30322, USA
| | - Keith R Yamamoto
- Department of Cellular and Molecular Pharmacology, University of California San Francisco School of Medicine, 600 16th Street, San Francisco, California 94143, USA
| |
Collapse
|
44
|
Zielińska KA, Van Moortel L, Opdenakker G, De Bosscher K, Van den Steen PE. Endothelial Response to Glucocorticoids in Inflammatory Diseases. Front Immunol 2016; 7:592. [PMID: 28018358 PMCID: PMC5155119 DOI: 10.3389/fimmu.2016.00592] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2016] [Accepted: 11/29/2016] [Indexed: 12/16/2022] Open
Abstract
The endothelium plays a crucial role in inflammation. A balanced control of inflammation requires the action of glucocorticoids (GCs), steroidal hormones with potent cell-specific anti-inflammatory properties. Besides the classic anti-inflammatory effects of GCs on leukocytes, recent studies confirm that endothelial cells also represent an important target for GCs. GCs regulate different aspects of endothelial physiology including expression of adhesion molecules, production of pro-inflammatory cytokines and chemokines, and maintenance of endothelial barrier integrity. However, the regulation of endothelial GC sensitivity remains incompletely understood. In this review, we specifically examine the endothelial response to GCs in various inflammatory diseases ranging from multiple sclerosis, stroke, sepsis, and vasculitis to atherosclerosis. Shedding more light on the cross talk between GCs and endothelium will help to improve existing therapeutic strategies and develop new therapies better tailored to the needs of patients.
Collapse
Affiliation(s)
- Karolina A. Zielińska
- Laboratory of Immunobiology, Rega Institute for Medical Research, KU Leuven, Leuven, Belgium
| | - Laura Van Moortel
- Receptor Research Laboratories, Nuclear Receptor Lab, VIB-UGent, VIB Medical Biotechnology Center, Ghent, Belgium
| | - Ghislain Opdenakker
- Laboratory of Immunobiology, Rega Institute for Medical Research, KU Leuven, Leuven, Belgium
| | - Karolien De Bosscher
- Receptor Research Laboratories, Nuclear Receptor Lab, VIB-UGent, VIB Medical Biotechnology Center, Ghent, Belgium
| | | |
Collapse
|
45
|
Pazdrak K, Moon Y, Straub C, Stafford S, Kurosky A. Eosinophil resistance to glucocorticoid-induced apoptosis is mediated by the transcription factor NFIL3. Apoptosis 2016; 21:421-31. [PMID: 26880402 DOI: 10.1007/s10495-016-1226-5] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The mainstay of asthma therapy, glucocorticoids (GCs) exert their therapeutic effects through the inhibition of inflammatory signaling and induction of eosinophil apoptosis. However, laboratory and clinical observations of GC-resistant asthma suggest that GCs' effects on eosinophil viability may depend on the state of eosinophil activation. In the present study we demonstrate that eosinophils stimulated with IL-5 show impaired pro-apoptotic response to GCs. We sought to determine the contribution of GC-mediated transactivating (TA) and transrepressing (TR) pathways in modulation of activated eosinophils' response to GC by comparing their response to the selective GC receptor (GR) agonist Compound A (CpdA) devoid of TA activity to that upon treatment with Dexamethasone (Dex). IL-5-activated eosinophils showed contrasting responses to CpdA and Dex, as IL-5-treated eosinophils showed no increase in apoptosis compared to cells treated with Dex alone, while CpdA elicited an apoptotic response regardless of IL-5 stimulation. Proteomic analysis revealed that both Nuclear Factor IL-3 (NFIL3) and Map Kinase Phosphatase 1 (MKP1) were inducible by IL-5 and enhanced by Dex; however, CpdA had no effect on NFIL3 and MKP1 expression. We found that inhibiting NFIL3 with specific siRNA or by blocking the IL-5-inducible Pim-1 kinase abrogated the protective effect of IL-5 on Dex-induced apoptosis, indicating crosstalk between IL-5 anti-apoptotic pathways and GR-mediated TA signaling occurring via the NFIL3 molecule. Collectively, these results indicate that (1) GCs' TA pathway may support eosinophil viability in IL-5-stimulated cells through synergistic upregulation of NFIL3; and (2) functional inhibition of IL-5 signaling (anti-Pim1) or the use of selective GR agonists that don't upregulate NFIL3 may be effective strategies for the restoring pro-apoptotic effect of GCs on IL-5-activated eosinophils.
Collapse
Affiliation(s)
- Konrad Pazdrak
- Department of Biochemistry and Molecular Biology, University of Texas Medical Branch, 301 University Boulevard, Galveston, TX, 77555, USA. .,Institute for Translational Sciences, University of Texas Medical Branch, Galveston, TX, 77555, USA.
| | - Young Moon
- Undergraduate Summer Research Program, University of Texas Medical Branch, Galveston, TX, 77555, USA
| | - Christof Straub
- Department of Biochemistry and Molecular Biology, University of Texas Medical Branch, 301 University Boulevard, Galveston, TX, 77555, USA
| | - Susan Stafford
- Department of Biochemistry and Molecular Biology, University of Texas Medical Branch, 301 University Boulevard, Galveston, TX, 77555, USA
| | - Alexander Kurosky
- Department of Biochemistry and Molecular Biology, University of Texas Medical Branch, 301 University Boulevard, Galveston, TX, 77555, USA.,Institute for Translational Sciences, University of Texas Medical Branch, Galveston, TX, 77555, USA
| |
Collapse
|
46
|
Rodriguez JM, Monsalves-Alvarez M, Henriquez S, Llanos MN, Troncoso R. Glucocorticoid resistance in chronic diseases. Steroids 2016; 115:182-192. [PMID: 27643454 DOI: 10.1016/j.steroids.2016.09.010] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/05/2016] [Revised: 09/09/2016] [Accepted: 09/12/2016] [Indexed: 12/25/2022]
Abstract
Glucocorticoids are involved in several responses triggered by a variety of environmental and physiological stimuli. These hormones have a wide-range of regulatory effects in organisms. Synthetic glucocorticoids are extensively used to suppress allergic, inflammatory, and immune disorders. Although glucocorticoids are highly effective for therapeutic purposes, some patients chronically treated with glucocorticoids can develop reduced glucocorticoid sensitivity or even resistance, increasing patient vulnerability to exaggerated inflammatory responses. Glucocorticoid resistance can occur in several chronic diseases, including asthma, major depression, and cardiovascular conditions. In this review, we discuss the complexity of the glucocorticoid receptor and the potential role of glucocorticoid resistance in the development of chronic diseases.
Collapse
Affiliation(s)
- Juan M Rodriguez
- Institute of Nutrition and Food Technology, University of Chile, Santiago 7830490, Chile
| | - Matías Monsalves-Alvarez
- Institute of Nutrition and Food Technology, University of Chile, Santiago 7830490, Chile; Departamento de Ciencias Biologicas, Facultad de Ciencias Biologicas, Universidad Andres Bello, Santiago, Chile
| | - Sandra Henriquez
- Institute of Nutrition and Food Technology, University of Chile, Santiago 7830490, Chile
| | - Miguel N Llanos
- Institute of Nutrition and Food Technology, University of Chile, Santiago 7830490, Chile
| | - Rodrigo Troncoso
- Institute of Nutrition and Food Technology, University of Chile, Santiago 7830490, Chile; Advanced Center for Chronic Disease, Faculty of Chemistry and Pharmacy, University of Chile, Santiago 8380492, Chile.
| |
Collapse
|
47
|
Mousavian Z, Nowzari-Dalini A, Stam RW, Rahmatallah Y, Masoudi-Nejad A. Network-based expression analysis reveals key genes related to glucocorticoid resistance in infant acute lymphoblastic leukemia. Cell Oncol (Dordr) 2016; 40:33-45. [PMID: 27798768 DOI: 10.1007/s13402-016-0303-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/19/2016] [Indexed: 12/20/2022] Open
Abstract
PURPOSE Despite vast improvements that have been made in the treatment of children with acute lymphoblastic leukemia (ALL), the majority of infant ALL patients (~80 %, < 1 year of age) that carry a chromosomal translocation involving the mixed lineage leukemia (MLL) gene shows a poor response to chemotherapeutic drugs, especially glucocorticoids (GCs), which are essential components of all current treatment regimens. Although addressed in several studies, the mechanism(s) underlying this phenomenon have remained largely unknown. A major drawback of most previous studies is their primary focus on individual genes, thereby neglecting the putative significance of inter-gene correlations. Here, we aimed at studying GC resistance in MLL-rearranged infant ALL patients by inferring an associated module of genes using co-expression network analysis. The implications of newly identified candidate genes with associations to other well-known relevant genes from the same module, or with associations to known transcription factor or microRNA interactions, were substantiated using literature data. METHODS A weighted gene co-expression network was constructed to identify gene modules associated with GC resistance in MLL-rearranged infant ALL patients. Significant gene ontology (GO) terms and signaling pathways enriched in relevant modules were used to provide guidance towards which module(s) consisted of promising candidates suitable for further analysis. RESULTS Through gene co-expression network analysis a novel set of genes (module) related to GC-resistance was identified. The presence in this module of the S100 and ANXA genes, both well-known biomarkers for GC resistance in MLL-rearranged infant ALL, supports its validity. Subsequent gene set net correlation analyses of the novel module provided further support for its validity by showing that the S100 and ANXA genes act as 'hub' genes with potentially major regulatory roles in GC sensitivity, but having lost this role in the GC resistant phenotype. The detected module implicates new genes as being candidates for further analysis through associations with known GC resistance-related genes. CONCLUSIONS From our data we conclude that available systems biology approaches can be employed to detect new candidate genes that may provide further insights into drug resistance of MLL-rearranged infant ALL cases. Such approaches complement conventional gene-wise approaches by taking putative functional interactions between genes into account.
Collapse
Affiliation(s)
- Zaynab Mousavian
- Laboratory of Systems Biology and Bioinformatics (LBB), Institute of Biochemistry and Biophysics, University of Tehran, Tehran, Iran
| | | | - Ronald W Stam
- Princess Maxima Center for Pediatric Oncology, Utrecht, The Netherlands
| | - Yasir Rahmatallah
- Department of Biomedical Informatics, University of Arkansas for Medical Sciences, Little Rock, AR, 72205, USA
| | - Ali Masoudi-Nejad
- Laboratory of Systems Biology and Bioinformatics (LBB), Institute of Biochemistry and Biophysics, University of Tehran, Tehran, Iran.
| |
Collapse
|
48
|
Angelini F, Di Matteo G, Balestrero S, Brunetti E, Mancino G, Rossi P, Galli E. Nuclear Factor κB Activity is Increased in Peripheral Blood Mononuclear Cells of Children Affected by Atopic and Non-Atopic Eczema. Int J Immunopathol Pharmacol 2016; 20:59-67. [PMID: 17346428 DOI: 10.1177/039463200702000107] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Atopic and non-atopic eczema is an inflammatory cutaneous disease which is common in childhood and is associated with a dysregulation of the immune system. Many genes encoding immune receptors, cytokines, chemokines, chemokine receptors, and adhesion molecules involved in the development of the disease are under the control of transcription factors belonging to the nuclear factor (NF)-κB family. To investigate the role of NF-κB in the development of eczema, 20 children, affected by relapsing chronic eczema, were enrolled in this study. Eleven of the 20 children showed IgE immunoreactivity and had a positive prick test. The DNA binding activity of NF-κB in nuclear extracts of the patients' peripheral blood mononuclear cells (PBMC) was examined by electrophoretic mobility shift assay. We found that basal NF-κB-DNA binding activity in PBMC was significantly higher in the eczema patient group in comparison with the same parameter in the healthy age-matched control group. Moreover, we observed a significant correlation between NF-κB-DNA binding activity and patients' clinical score (SCORAD). Based on these observations we speculate that NF-κB can play an important role in the immunopathogenesis of eczema and therefore could be considered as a potential therapeutic target.
Collapse
Affiliation(s)
- F Angelini
- Department of Pediatrics, Tor Vergata University, Rome, Italy.
| | | | | | | | | | | | | |
Collapse
|
49
|
Abstract
Cofactor squelching is the term used to describe competition between transcription factors (TFs) for a limited amount of cofactors in a cell with the functional consequence that TFs in a given cell interfere with the activity of each other. Since cofactor squelching was proposed based primarily on reporter assays some 30 years ago, it has remained controversial, and the idea that it could be a physiologically relevant mechanism for transcriptional repression has not received much support. However, recent genome-wide studies have demonstrated that signal-dependent TFs are very often absent from the enhancers that are acutely repressed by those signals, which is consistent with an indirect mechanism of repression such as squelching. Here we review these recent studies in the light of the classical studies of cofactor squelching, and we discuss how TF cooperativity in so-called hotspots and super-enhancers may sensitize these to cofactor squelching.
Collapse
Affiliation(s)
- Søren Fisker Schmidt
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, 5230, Odense M, Denmark
| | - Bjørk Ditlev Larsen
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, 5230, Odense M, Denmark
| | - Anne Loft
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, 5230, Odense M, Denmark
| | - Susanne Mandrup
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, 5230, Odense M, Denmark
| |
Collapse
|
50
|
The Interactome of the Glucocorticoid Receptor and Its Influence on the Actions of Glucocorticoids in Combatting Inflammatory and Infectious Diseases. Microbiol Mol Biol Rev 2016; 80:495-522. [PMID: 27169854 DOI: 10.1128/mmbr.00064-15] [Citation(s) in RCA: 126] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Glucocorticoids (GCs) have been widely used for decades as a first-line treatment for inflammatory and autoimmune diseases. However, their use is often hampered by the onset of adverse effects or resistance. GCs mediate their effects via binding to glucocorticoid receptor (GR), a transcription factor belonging to the family of nuclear receptors. An important aspect of GR's actions, including its anti-inflammatory capacity, involves its interactions with various proteins, such as transcription factors, cofactors, and modifying enzymes, which codetermine receptor functionality. In this review, we provide a state-of-the-art overview of the protein-protein interactions (PPIs) of GR that positively or negatively affect its anti-inflammatory properties, along with mechanistic insights, if known. Emphasis is placed on the interactions that affect its anti-inflammatory effects in the presence of inflammatory and microbial diseases.
Collapse
|