1
|
Hadji H, Bouchemal K. Advances in the treatment of inflammatory bowel disease: Focus on polysaccharide nanoparticulate drug delivery systems. Adv Drug Deliv Rev 2022; 181:114101. [PMID: 34999122 DOI: 10.1016/j.addr.2021.114101] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2021] [Revised: 12/21/2021] [Accepted: 12/22/2021] [Indexed: 02/07/2023]
Abstract
The complex pathogenesis of inflammatory bowel disease (IBD) explains the several hurdles for finding an efficient approach to cure it. Nowadays, therapeutic protocols aim to reduce inflammation during the hot phase or maintain remission during the cold phase. Nonetheless, these drugs suffer from severe side effects or poor efficacy due to low bioavailability in the inflamed region of the intestinal tract. New protocols based on antibodies that target proinflammatory cytokines are clinically relevant. However, besides being expensive, their use is associated with a primary nonresponse or a loss of response following a long administration period. Accordingly, many researchers exploited the physiological changes of the mucosal barrier for designing nanoparticulate drug delivery systems to target inflamed tissues. Others exploited biocompatibility and relative affordability of polysaccharides to test their intrinsic anti-inflammatory and healing properties in IBD models. This critical review updates state of the art on advances in IBD treatment. Data on using polysaccharide nanoparticulate drug delivery systems for IBD treatment are reviewed and discussed.
Collapse
Affiliation(s)
- Hicheme Hadji
- Institut Galien Paris Saclay, CNRS UMR 8612, Université Paris-Saclay, Faculté de Pharmacie, 5 rue J-B Clément, 92296 Châtenay-Malabry, France
| | - Kawthar Bouchemal
- Institut Galien Paris Saclay, CNRS UMR 8612, Université Paris-Saclay, Faculté de Pharmacie, 5 rue J-B Clément, 92296 Châtenay-Malabry, France.
| |
Collapse
|
2
|
Abstract
The ubiquity and potency of antibiotics may give the false impression that infection is a solved problem. Unfortunately, even bacterial infections, the target of antibiotics, remain a major cause of illness and death. Several major unmet needs persist: biofilms, such as those on implanted hardware, largely resist antibiotics; the inflammatory host response to infection often produces more damage than the infection itself; and systemic antibiotics often decimate the gut microbiome, which can predispose to additional infections and even predispose to non-infectious diseases. Additionally, there is an increasing threat from multi-drug resistant microorganisms, though market forces may continue to inhibit innovation in this realm. These numerous unmet infection-related needs provide attractive goals for innovation of targeted drug delivery technologies, especially those of nanomedicine. Here we review several of those innovations in pre-clinical development, the two such therapies which have made it to clinical use, and the opportunities for further technology development for treating infections.
Collapse
Affiliation(s)
- Kathryn M Rubey
- Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA; Division of Neonatology, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA
| | - Jacob S Brenner
- Pulmonary, Allergy, and Critical Care Division, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA; Department of Systems Pharmacology and Translational Therapeutics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA.
| |
Collapse
|
3
|
Abstract
[Figure: see text].
Collapse
|
4
|
Rubas NC, Maunakea A. Medical School Hotline: Immunoepigenetic-Microbiome Axis: Implications for Health Disparities Research in Native Hawaiians and Pacific Islanders. Hawaii J Health Soc Welf 2021; 80:195-198. [PMID: 34355196 PMCID: PMC8334073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Native Hawaiian and Pacific Islander (NHPI) populations suffer from disproportionately higher rates of chronic conditions, such as type 2 diabetes, that arises from metabolic dysfunction and are often associated with obesity and inflammation. In addition, the global coronavirus disease 2019 pandemic has further compounded the effect of health inequities observed in Indigenous populations, including NHPI communities. Reversible lifestyle habits, such as diet, may either be protective of or contribute to the increasing prevalence of health inequities in these populations via the immunoepigenetic-microbiome axis. This axis offers insight into the connection between diet, epigenetics, the microbiome composition, immune function, and response to viral infection. Epigenetic mechanisms that regulate inflammatory states associated with metabolic diseases, including diabetes, are impacted by diet. Furthermore, diet may modulate the gut microbiome by influencing microbial diversity and richness; dysbiosis of the microbiome is associated with chronic disease. A high fiber diet facilitates a favorable microbiome composition and in turn increases production of intermediate metabolites named short-chain fatty acids (SCFAs) that act on metabolic and immune pathways. In contrast, low fiber diets typically associated with a westernized lifestyle decreases the abundance of microbial derived SCFAs. This decreased abundance is characteristic of metabolic syndromes and activation of chronic inflammatory states, having larger implications in disease pathogenesis of both communicable and non-communicable diseases. Native Hawaiians and Pacific Islanders that once thrived on healthy traditional diets may be more sensitive than non-indigenous peoples to the metabolic perturbation of westernized diets that impinge on the immunoepigenetic-gut microbiome axis. Recent studies conducted in the Maunakea lab at the University of Hawai'i at Mānoa John A. Burns School of Medicine have helped elucidate the connections between diet, microbiome composition, metabolic syndrome, and epigenetic regulation of immune function to better understand disease pathogenesis. Potentially, this research could point to ways to prevent pre-disease conditions through novel biomarker discovery using community-based approaches.
Collapse
Affiliation(s)
- Noelle C Rubas
- Epigenomics Research Program, Institute for Biogenesis Research, Department of Anatomy, Biochemistry and Physiology, John. A Burns School of Medicine, University of Hawai'i at M?noa, Honolulu, HI
| | - Alika Maunakea
- Epigenomics Research Program, Institute for Biogenesis Research, Department of Anatomy, Biochemistry and Physiology, John. A Burns School of Medicine, University of Hawai'i at M?noa, Honolulu, HI
| |
Collapse
|
5
|
Zwischenberger BA, Balasuriya BK, Harris DD, Nataraj N, Owen AM, Bruno MEC, Mukherjee S, Ortiz-Soriano V, O’Connor W, Ke C, Stromberg AJ, Chang PK, Neyra JA, Saito H, Starr ME. Adipose-Derived Inflammatory and Coagulant Mediators in Patients With Sepsis. Shock 2021; 55:596-606. [PMID: 32496420 PMCID: PMC8994194 DOI: 10.1097/shk.0000000000001579] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
ABSTRACT Results from preclinical sepsis studies using rodents are often criticized as not being reproducible in humans. Using a murine model, we previously reported that visceral adipose tissues (VAT) are highly active during the acute inflammatory response, serving as a major source of inflammatory and coagulant mediators. The purpose of this study was to determine whether these findings are recapitulated in patients with sepsis and to evaluate their clinical significance. VAT and plasma were obtained from patients undergoing intra-abdominal operations with noninflammatory conditions (control), local inflammation, or sepsis. In mesenteric and epiploic VAT, gene expression of pro-inflammatory (TNFα, IL-6, IL-1α, IL-1β) and pro-coagulant (PAI-1, PAI-2, TSP-1, TF) mediators was increased in sepsis compared with control and local inflammation groups. In the omentum, increased expression was limited to IL-1β, PAI-1, and PAI-2, showing a depot-specific regulation. Histological analyses showed little correlation between cellular infiltration and gene expression, indicating a resident source of these mediators. Notably, a strong correlation between PAI-1 expression in VAT and circulating protein levels was observed, both being positively associated with markers of acute kidney injury (AKI). In another cohort of septic patients stratified by incidence of AKI, circulating PAI-1 levels were higher in those with versus without AKI, thus extending these findings beyond intra-abdominal cases. This study is the first to translate upregulation of VAT mediators in sepsis from mouse to human. Collectively, the data suggest that development of AKI in septic patients is associated with high plasma levels of PAI-1, likely derived from resident cells within VAT.
Collapse
Affiliation(s)
- Brittany A. Zwischenberger
- Aging and Critical Care Research Laboratory, University of Kentucky, Lexington, Kentucky
- Department of Surgery, University of Kentucky, Lexington, Kentucky
| | - Beverly K. Balasuriya
- Aging and Critical Care Research Laboratory, University of Kentucky, Lexington, Kentucky
- Department of Surgery, University of Kentucky, Lexington, Kentucky
| | - Dwight D. Harris
- Aging and Critical Care Research Laboratory, University of Kentucky, Lexington, Kentucky
- Department of Surgery, University of Kentucky, Lexington, Kentucky
| | - Nisha Nataraj
- Aging and Critical Care Research Laboratory, University of Kentucky, Lexington, Kentucky
- Department of Surgery, University of Kentucky, Lexington, Kentucky
| | - Allison M. Owen
- Aging and Critical Care Research Laboratory, University of Kentucky, Lexington, Kentucky
- Department of Surgery, University of Kentucky, Lexington, Kentucky
- Department of Physiology, University of Kentucky, Lexington, Kentucky
| | - Maria E. C. Bruno
- Aging and Critical Care Research Laboratory, University of Kentucky, Lexington, Kentucky
- Department of Surgery, University of Kentucky, Lexington, Kentucky
| | - Sujata Mukherjee
- Aging and Critical Care Research Laboratory, University of Kentucky, Lexington, Kentucky
- Department of Pharmacology and Nutritional Sciences, University of Kentucky, Lexington, Kentucky
| | | | - William O’Connor
- Department of Pathology and Laboratory Medicine, University of Kentucky, Lexington, Kentucky
| | - Chenlu Ke
- Department of Statistics, University of Kentucky, Lexington, Kentucky
| | | | - Phillip K. Chang
- Department of Surgery, University of Kentucky, Lexington, Kentucky
| | - Javier A. Neyra
- Department of Internal Medicine, University of Kentucky, Lexington, Kentucky
| | - Hiroshi Saito
- Aging and Critical Care Research Laboratory, University of Kentucky, Lexington, Kentucky
- Department of Surgery, University of Kentucky, Lexington, Kentucky
- Department of Physiology, University of Kentucky, Lexington, Kentucky
| | - Marlene E. Starr
- Aging and Critical Care Research Laboratory, University of Kentucky, Lexington, Kentucky
- Department of Surgery, University of Kentucky, Lexington, Kentucky
- Department of Pharmacology and Nutritional Sciences, University of Kentucky, Lexington, Kentucky
| |
Collapse
|
6
|
Cui X, Huang M, Wang S, Zhao N, Huang T, Wang Z, Qiao J, Wang S, Shan Z, Teng W, Li Y. Circulating Exosomes From Patients With Graves' Disease Induce an Inflammatory Immune Response. Endocrinology 2021; 162:6046189. [PMID: 33367747 DOI: 10.1210/endocr/bqaa236] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Indexed: 12/14/2022]
Abstract
Exosomes are extracellular vesicles that can participate in autoimmune diseases. The purpose of this study was to explore whether circulating exosomes are involved in Graves' disease (GD) pathogenesis. In this study, serum exosomes were extracted from 26 healthy controls (HC-EXO), 26 GD patients (GD-EXO), and 7 Graves' ophthalmopathy patients (GO-EXO). For each group, the total protein content was detected, and thyrotropin receptor, insulin-like growth factor 1 receptor (IGF-1R), heat shock protein 60 (HSP60), and cluster of differentiation (CD) 63 expression were analyzed by Western blotting (WB). Healthy volunteer-derived peripheral blood mononuclear cells (PBMCs) and HC-EXO or GD-EXO were cocultured for 24 h, and immunofluorescence was used to observe the locations of the exosomes and toll-like receptor (TLR) 2/3. CD11c+TLR2+ and CD11c+TLR3+ cell percentages were determined by flow cytometry. Myeloid differentiation factor 88 (MyD88), toll/interleukin (IL)-1 receptor domain-containing adaptor inducing interferon-β (TRIF) and p-P65 expression were analyzed by WB. IL-6 and IL-1β supernatant levels were detected using enzyme-linked immunosorbent assay. The results showed that the total protein concentration was similar among GD-EXO, GO-EXO, and HC-EXO. IGF-1R and HSP60 expression was significantly higher in GD-EXO and GO-EXO than in HC-EXO. After coculturing PBMCs with GD-EXO or HC-EXO for 24 h, GD-EXO could bind to TLR2/3. GD-EXO significantly increased CD11c+TLR2+ and CD11c+TLR3+ cell percentages; MyD88, TRIF, and p-P65 protein expression; and IL-6 and IL-1β levels. In conclusion, we first demonstrated that GD-EXO and GO-EXO highly expressed IGF-1R and HSP60. GD-EXO may induce an inflammatory response through the TLR/NF-κB signaling pathway and be involved in the pathogenesis of GD.
Collapse
Affiliation(s)
- Xuejiao Cui
- Department of Endocrinology and Metabolism, Institute of Endocrinology, The First Hospital of China Medical University, Shenyang, China
- Department of Endocrinology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Mingshi Huang
- Department of Endocrinology and Metabolism, Institute of Endocrinology, The First Hospital of China Medical University, Shenyang, China
| | - Shiwei Wang
- Department of Endocrinology and Metabolism, Institute of Endocrinology, The First Hospital of China Medical University, Shenyang, China
| | - Na Zhao
- Department of Endocrinology and Metabolism, Institute of Endocrinology, The First Hospital of China Medical University, Shenyang, China
| | - Ting Huang
- Department of Endocrinology and Metabolism, Institute of Endocrinology, The First Hospital of China Medical University, Shenyang, China
| | - Zhenzhen Wang
- Department of Endocrinology and Metabolism, Institute of Endocrinology, The First Hospital of China Medical University, Shenyang, China
| | - Jing Qiao
- Department of Endocrinology and Metabolism, Institute of Endocrinology, The First Hospital of China Medical University, Shenyang, China
| | - Shuo Wang
- Department of Endocrinology and Metabolism, Institute of Endocrinology, The First Hospital of China Medical University, Shenyang, China
| | - Zhongyan Shan
- Department of Endocrinology and Metabolism, Institute of Endocrinology, The First Hospital of China Medical University, Shenyang, China
| | - Weiping Teng
- Department of Endocrinology and Metabolism, Institute of Endocrinology, The First Hospital of China Medical University, Shenyang, China
| | - Yushu Li
- Department of Endocrinology and Metabolism, Institute of Endocrinology, The First Hospital of China Medical University, Shenyang, China
| |
Collapse
|
7
|
Abstract
Obesity and obesity-related diseases like type 2 diabetes (T2D) are prominent global health issues; therefore, there is a need to better understand the mechanisms underlying these conditions. The onset of obesity is characterized by accumulation of proinflammatory cells, including Ly6chi monocytes (which differentiate into proinflammatory macrophages) and neutrophils, in metabolic tissues. This shift toward chronic, low-grade inflammation is an obese-state hallmark and highly linked to metabolic disorders and other obesity comorbidities. The mechanisms that induce and maintain increased inflammatory myelopoiesis are of great interest, with a recent focus on how obesity affects more primitive hematopoietic cells. The hematopoietic system is constantly replenished by proper regulation of hematopoietic stem and progenitor (HSPC) pools in the BM. While early research suggests that chronic obesity promotes expansion of myeloid-skewed HSPCs, the involvement of the hematopoietic stem cell (HSC) niche in regulating obesity-induced myelopoiesis remains undefined. In this review, we explore the role of the multicellular HSC niche in hematopoiesis and inflammation, and the potential contribution of this niche to the hematopoietic response to obesity. This review further aims to summarize the potential HSC niche involvement as a target of obesity-induced inflammation and a driver of obesity-induced myelopoiesis.
Collapse
|
8
|
Chang B, Song C, Gao H, Ma T, Li T, Ma Q, Yao T, Wang M, Li J, Yi X, Tang D, Cao S. Leptin and inflammatory factors play a synergistic role in the regulation of reproduction in male mice through hypothalamic kisspeptin-mediated energy balance. Reprod Biol Endocrinol 2021; 19:12. [PMID: 33472656 PMCID: PMC7816398 DOI: 10.1186/s12958-021-00698-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2020] [Accepted: 01/08/2021] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Energy balance is closely related to reproductive function, wherein hypothalamic kisspeptin mediates regulation of the energy balance. However, the central mechanism of kisspeptin in the regulation of male reproductive function under different energy balance states is unclear. Here, high-fat diet (HFD) and exercise were used to change the energy balance to explore the role of leptin and inflammation in the regulation of kisspeptin and the hypothalamic-pituitary-testis (HPT) axis. METHODS Four-week-old male C57BL/6 J mice were randomly assigned to a normal control group (n = 16) or an HFD (n = 49) group. After 10 weeks of HFD feeding, obese mice were randomly divided into obesity control (n = 16), obesity moderate-load exercise (n = 16), or obesity high-load exercise (n = 17) groups. The obesity moderate-load exercise and obesity high-load exercise groups performed exercise (swimming) for 120 min/day and 120 min × 2 times/day (6 h interval), 5 days/week for 8 weeks, respectively. RESULTS Compared to the mice in the normal group, in obese mice, the mRNA and protein expression of the leptin receptor, kiss, interleukin-10 (IL-10), and gonadotropin-releasing hormone (GnRH) decreased in the hypothalamus; serum luteinizing hormone (LH), follicle-stimulating hormone (FSH), and testosterone levels and sperm quality decreased; and serum leptin, estradiol, and tumor necrosis factor-α (TNF-α) levels and sperm apoptosis increased. Moderate- and high-load exercise effectively reduced body fat and serum leptin levels but had the opposite effects on the hypothalamus and serum IL-10 and TNF-α levels. Moderate-load exercise had anti-inflammatory effects accompanied by increased mRNA and protein expression of kiss and GnRH in the hypothalamus and increased serum FSH, LH, and testosterone levels and improved sperm quality. High-load exercise also promoted inflammation, with no significant effect on the mRNA and protein expression of kiss and GnRH in the hypothalamus, serum sex hormone level, or sperm quality. Moderate-load exercise improved leptin resistance and inflammation and reduced the inhibition of kisspeptin and the HPT axis in obese mice. The inflammatory response induced by high-load exercise may counteract the positive effect of improving leptin resistance on kisspeptin and HPT. CONCLUSION During changes in energy balance, leptin and inflammation jointly regulate kisspeptin expression on the HPT axis.
Collapse
Affiliation(s)
- Bo Chang
- Exercise and Health Research Center/Department of Kinesiology, Shenyang Sport University, Shenyang, 110102, Liaoning, China
| | - Chenglin Song
- Exercise and Health Research Center/Department of Kinesiology, Shenyang Sport University, Shenyang, 110102, Liaoning, China
| | - Haining Gao
- Exercise and Health Research Center/Department of Kinesiology, Shenyang Sport University, Shenyang, 110102, Liaoning, China
| | - Tie Ma
- Exercise and Health Research Center/Department of Kinesiology, Shenyang Sport University, Shenyang, 110102, Liaoning, China
| | - Tao Li
- Exercise and Health Research Center/Department of Kinesiology, Shenyang Sport University, Shenyang, 110102, Liaoning, China
| | - Qianhe Ma
- Exercise and Health Research Center/Department of Kinesiology, Shenyang Sport University, Shenyang, 110102, Liaoning, China
| | - Tingting Yao
- Exercise and Health Research Center/Department of Kinesiology, Shenyang Sport University, Shenyang, 110102, Liaoning, China
| | - Meng Wang
- Exercise and Health Research Center/Department of Kinesiology, Shenyang Sport University, Shenyang, 110102, Liaoning, China
| | - Jing Li
- Exercise and Health Research Center/Department of Kinesiology, Shenyang Sport University, Shenyang, 110102, Liaoning, China
| | - Xuejie Yi
- Exercise and Health Research Center/Department of Kinesiology, Shenyang Sport University, Shenyang, 110102, Liaoning, China.
| | - Donghui Tang
- PE College of Beijing Normal University, Beijing, 100875, China.
| | - Shicheng Cao
- Department of Sports Medicine, School of Public and Basic Sciences, China Medical University, Shenyang, 110122, Liaoning, China.
| |
Collapse
|
9
|
Serrano-Castro PJ, Estivill-Torrús G, Cabezudo-García P, Reyes-Bueno JA, Ciano Petersen N, Aguilar-Castillo MJ, Suárez-Pérez J, Jiménez-Hernández MD, Moya-Molina MÁ, Oliver-Martos B, Arrabal-Gómez C, Rodríguez de Fonseca F. Impact of SARS-CoV-2 infection on neurodegenerative and neuropsychiatric diseases: a delayed pandemic? Neurologia 2020; 35:245-251. [PMID: 32364119 PMCID: PMC7164900 DOI: 10.1016/j.nrl.2020.04.002] [Citation(s) in RCA: 94] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Accepted: 04/14/2020] [Indexed: 02/08/2023] Open
Abstract
INTRODUCTION SARS-CoV-2 was first detected in December 2019 in the Chinese city of Wuhan and has since spread across the world. At present, the virus has infected over 1.7 million people and caused over 100 000 deaths worldwide. Research is currently focused on understanding the acute infection and developing effective treatment strategies. In view of the magnitude of the epidemic, we conducted a speculative review of possible medium- and long-term neurological consequences of SARS-CoV-2 infection, with particular emphasis on neurodegenerative and neuropsychiatric diseases of neuroinflammatory origin, based on the available evidence on neurological symptoms of acute SARS-CoV-2 infection. DEVELOPMENT We systematically reviewed the available evidence about the pathogenic mechanisms of SARS-CoV-2 infection, the immediate and lasting effects of the cytokine storm on the central nervous system, and the consequences of neuroinflammation for the central nervous system. CONCLUSIONS SARS-CoV-2 is a neuroinvasive virus capable of triggering a cytokine storm, with persistent effects in specific populations. Although our hypothesis is highly speculative, the impact of SARS-CoV-2 infection on the onset and progression of neurodegenerative and neuropsychiatric diseases of neuroinflammatory origin should be regarded as the potential cause of a delayed pandemic that may have a major public health impact in the medium to long term. Cognitive and neuropsychological function should be closely monitored in COVID-19 survivors.
Collapse
Affiliation(s)
- P J Serrano-Castro
- Servicio de Neurología, Hospital Regional Universitario de Málaga, Málaga, España; Instituto de Investigación Biomédica de Málaga (IBIMA), Málaga, España; Red Andaluza de Investigación Clínica y Traslacional en Neurología (Neuro-RECA).
| | - G Estivill-Torrús
- Instituto de Investigación Biomédica de Málaga (IBIMA), Málaga, España; Red Andaluza de Investigación Clínica y Traslacional en Neurología (Neuro-RECA)
| | - P Cabezudo-García
- Servicio de Neurología, Hospital Regional Universitario de Málaga, Málaga, España; Instituto de Investigación Biomédica de Málaga (IBIMA), Málaga, España; Red Andaluza de Investigación Clínica y Traslacional en Neurología (Neuro-RECA)
| | - J A Reyes-Bueno
- Servicio de Neurología, Hospital Regional Universitario de Málaga, Málaga, España; Instituto de Investigación Biomédica de Málaga (IBIMA), Málaga, España; Red Andaluza de Investigación Clínica y Traslacional en Neurología (Neuro-RECA)
| | - N Ciano Petersen
- Servicio de Neurología, Hospital Regional Universitario de Málaga, Málaga, España; Instituto de Investigación Biomédica de Málaga (IBIMA), Málaga, España; Red Andaluza de Investigación Clínica y Traslacional en Neurología (Neuro-RECA)
| | - M J Aguilar-Castillo
- Red Andaluza de Investigación Clínica y Traslacional en Neurología (Neuro-RECA); Servicio de Análisis Clínicos, Hospital Regional Universitario de Málaga, Málaga, España
| | - J Suárez-Pérez
- Instituto de Investigación Biomédica de Málaga (IBIMA), Málaga, España; Red Andaluza de Investigación Clínica y Traslacional en Neurología (Neuro-RECA)
| | - M D Jiménez-Hernández
- Red Andaluza de Investigación Clínica y Traslacional en Neurología (Neuro-RECA); Servicio de Neurología, Hospital Universitario Virgen del Rocío, Sevilla, España
| | - M Á Moya-Molina
- Red Andaluza de Investigación Clínica y Traslacional en Neurología (Neuro-RECA); Servicio de Neurología, Hospital Universitario Puerta del Mar, Cádiz, España
| | - B Oliver-Martos
- Instituto de Investigación Biomédica de Málaga (IBIMA), Málaga, España; Red Andaluza de Investigación Clínica y Traslacional en Neurología (Neuro-RECA)
| | - C Arrabal-Gómez
- Instituto de Investigación Biomédica de Málaga (IBIMA), Málaga, España; Red Andaluza de Investigación Clínica y Traslacional en Neurología (Neuro-RECA)
| | - F Rodríguez de Fonseca
- Instituto de Investigación Biomédica de Málaga (IBIMA), Málaga, España; Red Andaluza de Investigación Clínica y Traslacional en Neurología (Neuro-RECA)
| |
Collapse
|
10
|
Abstract
Lung adenocarcinoma (LUAD), a form of lung cancer, is reported to cause first and second-order cancer morbidity to men and women in China, respectively. We assessed the mRNA expression of GJB2 in LUAD patients in our study, based on data acquired from the cancer genome atlas (TCGA) and so as to increase further knowledge into the biological pathways involved in LUAD pathogenesis related to GJB2.Information on gene expression and comparing clinical data were recognized and downloaded from TCGA. Gene set enrichment analysis (GSEA) created an arranged list of all genes is indicated by their connection with GJB2 expression.Our study cohort included 265 (54.5%) female and 221 (36.0%) male patients. The scatter plot and paired plot showed the difference of GJB2 expression between normal and tumor samples (P < .01). Overall survival (OS) analysis demonstrated that LUAD with GJB2 -high had a more terrible prognosis than that with GJB2 -low (P < .01). Multivariate analysis with the cox proportional hazards model indicated that the expression of Cx26 (HR: 1.00; 95%CI: 1.00-1.01; P = .041) and stage (HR: 1.95; 95%CI: 1.23-3.09; P = .003) were independent prognostic factors for patients with LUAD. The GSEA results showed that cytosolic DNA sensing pathway, apoptosis, cytokine-cytokine receptor interaction, natural killer cell mediated cytotoxicity, regulation of actin cytoskeleton, toll-like receptor signaling pathway, small cell lung cancer and pathways in cancer are differentially enriched in GJB2 high expression phenotype.Our study confirmed the significantly high levels of Cx26 expression in LUAD patients with several observed clinical features. GJB2 may be a potentially useful prognostic molecular biomarker of bad survival in LUAD, while further experimental ought to be performed to demonstrate the biologic effect of GJB2.
Collapse
Affiliation(s)
- Yun Tang
- Department of Critical Care Medicine, Union Hospital
| | | | - Zeng-Hong Wu
- Department of Otorhinolaryngology, Union Hospital
- Department of Infectious Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| |
Collapse
|
11
|
Undem BJ, Sun H. Molecular/Ionic Basis of Vagal Bronchopulmonary C-Fiber Activation by Inflammatory Mediators. Physiology (Bethesda) 2020; 35:57-68. [PMID: 31799905 PMCID: PMC6985783 DOI: 10.1152/physiol.00014.2019] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Revised: 05/30/2019] [Accepted: 06/03/2019] [Indexed: 12/11/2022] Open
Abstract
Stimulation of bronchopulmonary vagal afferent C fibers by inflammatory mediators can lead to coughing, chest tightness, and changes in breathing pattern, as well as reflex bronchoconstriction and secretions. These responses serve a defensive function in healthy lungs but likely contribute to many of the signs and symptoms of inflammatory airway diseases. A better understanding of the mechanisms underlying the activation of bronchopulmonary C-fiber terminals may lead to novel therapeutics that would work in an additive or synergic manner with existing anti-inflammatory strategies.
Collapse
Affiliation(s)
| | - Hui Sun
- Johns Hopkins University, Baltimore, Maryland
| |
Collapse
|
12
|
Abstract
Nowadays, more than 80 autoimmune disorders are recognized, in which an aberrant immune response against different organs and tissues plays a crucial role. Hormonal homeostasis has great influence in achieving competent and healthy immune system function. Prolactin has a bioactive function acting as a hormone and a cytokine. It influences the immune system modulation, mainly inhibiting the negative selection of autoreactive B lymphocytes. Hyperprolactinemia has been detected in many patients with different autoimmune diseases, such as rheumatoid arthritis, systemic lupus erythematosus, Sjögren syndrome, multiple sclerosis, autoimmune thyroid disease, systemic sclerosis, among others, and its believed to play a crucial role in disease pathogenesis. A direct correlation between prolactin levels and disease activity was not clear. Genetic factors may have a role in humans as in animal models. Dopamine agonists have proven to offer clinical benefits among autoimmune patients and represent a promising therapy to be explored. In this review, the authors attempt to provide a critical overview on the role of prolactin in the immune system, exploring its contribution to the development of autoimmune diseases.
Collapse
Affiliation(s)
- Vânia Vieira Borba
- Zabludowicz Center for Autoimmune Diseases, Sheba Medical Center, Tel-Hashomer, Israel
| | - Gisele Zandman-Goddard
- Zabludowicz Center for Autoimmune Diseases, Sheba Medical Center, Tel-Hashomer, Israel; Department of Medicine C, Wolfson Medical Center, Tel Aviv, Israel
| | - Yehuda Shoenfeld
- Zabludowicz Center for Autoimmune Diseases, Sheba Medical Center, Tel-Hashomer, Israel; Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel; I.M. Sechenov First Moscow State Medical University of the Ministry of Health of the Russian Federation (Sechenov University), Russia.
| |
Collapse
|
13
|
Paudel YN, Shaikh MF, Shah S, Kumari Y, Othman I. Role of inflammation in epilepsy and neurobehavioral comorbidities: Implication for therapy. Eur J Pharmacol 2018; 837:145-155. [PMID: 30125565 DOI: 10.1016/j.ejphar.2018.08.020] [Citation(s) in RCA: 88] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Revised: 08/15/2018] [Accepted: 08/16/2018] [Indexed: 02/07/2023]
Abstract
Epilepsy is a devastating condition affecting around 70 million people worldwide. Moreover, the quality of life of people with epilepsy (PWE) is worsened by a series of comorbidities. The neurobehavioral comorbidities discussed herein share a reciprocal and complex relationship with epilepsy, which ultimately complicates the treatment process in PWE. Understanding the mechanistic pathway by which these comorbidities are associated with epilepsy might be instrumental in developing therapeutic interventions. Inflammatory cytokine signaling in the brain regulates important brain functions including neurotransmitter metabolism, neuroendocrine function, synaptic plasticity, dopaminergic transmission, the kynurenine pathway, and affects neurogenesis as well as the neural circuitry of moods. In this review, we hypothesize that the complex relationship between epilepsy and its related comorbidities (cognitive impairment, depression, anxiety, autism, and schizophrenia) can be unraveled through the inflammatory mechanism that plays a prominent role in all these individual conditions. An ample amount of evidence is available reporting the role of inflammation in epilepsy and all individual comorbid condition but their complex relationship with epilepsy has not yet been explored through the prospective of inflammatory pathway. Our review suggests that epilepsy and its neurobehavioral comorbidities are associated with elevated levels of several key inflammatory markers. This review also sheds light on the mechanistic association between epilepsy and its neurobehavioral comorbidities. Moreover, we analyzed several anti-inflammatory therapies available for epilepsy and its neurobehavioral comorbidities. We suggest, these anti-inflammatory therapies might be a possible intervention and could be a promising strategy for preventing epileptogenesis and its related neurobehavioral comorbidities.
Collapse
Affiliation(s)
- Yam Nath Paudel
- Neuropharmacology Research Laboratory, Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, Selangor, Malaysia
| | - Mohd Farooq Shaikh
- Neuropharmacology Research Laboratory, Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, Selangor, Malaysia.
| | - Sadia Shah
- Department of Pharmacology, All India Institute of Medical Sciences, New Delhi, India
| | - Yatinesh Kumari
- Neuropharmacology Research Laboratory, Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, Selangor, Malaysia
| | - Iekhsan Othman
- Neuropharmacology Research Laboratory, Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, Selangor, Malaysia
| |
Collapse
|
14
|
Goldsammler M, Merhi Z, Buyuk E. Role of hormonal and inflammatory alterations in obesity-related reproductive dysfunction at the level of the hypothalamic-pituitary-ovarian axis. Reprod Biol Endocrinol 2018; 16:45. [PMID: 29743077 PMCID: PMC5941782 DOI: 10.1186/s12958-018-0366-6] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2018] [Accepted: 05/03/2018] [Indexed: 01/17/2023] Open
Abstract
BACKGROUND Besides being a risk factor for multiple metabolic disorders, obesity could affect female reproduction. While increased adiposity is associated with hormonal changes that could disrupt the function of the hypothalamus and the pituitary, compelling data suggest that obesity-related hormonal and inflammatory changes could directly impact ovarian function. OBJECTIVE To review the available data related to the mechanisms by which obesity, and its associated hormonal and inflammatory changes, could affect the female reproductive function with a focus on the hypothalamic-pituitary-ovarian (HPO) axis. METHODS PubMed database search for publications in English language until October 2017 pertaining to obesity and female reproductive function was performed. RESULTS The obesity-related changes in hormone levels, in particular leptin, adiponectin, ghrelin, neuropeptide Y and agouti-related protein, are associated with reproductive dysfunction at both the hypothalamic-pituitary and the ovarian levels. The pro-inflammatory molecules advanced glycation end products (AGEs) and monocyte chemotactic protein-1 (MCP-1) are emerging as relatively new players in the pathophysiology of obesity-related ovarian dysfunction. CONCLUSION There is an intricate crosstalk between the adipose tissue and the inflammatory system with the HPO axis function. Understanding the mechanisms behind this crosstalk could lead to potential therapies for the common obesity-related reproductive dysfunction.
Collapse
Affiliation(s)
- Michelle Goldsammler
- Montefiore’s Institute for Reproductive Medicine and Health, Department of Obstetrics & Gynecology and Women’s Health, Albert Einstein College of Medicine, Montefiore Medical Center, Hartsdale, NY USA
| | - Zaher Merhi
- 0000 0004 1936 8753grid.137628.9Department of Obstetrics and Gynecology, Division of Reproductive Biology, NYU School of Medicine, New York, NY USA
- 0000000121791997grid.251993.5Department of Biochemistry, Albert Einstein College of Medicine, Bronx, NY USA
| | - Erkan Buyuk
- Montefiore’s Institute for Reproductive Medicine and Health, Department of Obstetrics & Gynecology and Women’s Health, Albert Einstein College of Medicine, Montefiore Medical Center, Hartsdale, NY USA
| |
Collapse
|
15
|
Sachdev U, Vodovotz L, Bitner J, Barclay D, Zamora R, Yin J, Simmons RL, Vodovotz Y. Suppressed networks of inflammatory mediators characterize chronic venous insufficiency. J Vasc Surg Venous Lymphat Disord 2018; 6:358-366. [PMID: 29439934 DOI: 10.1016/j.jvsv.2017.11.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Accepted: 11/05/2017] [Indexed: 12/11/2022]
Abstract
OBJECTIVE Chronic venous insufficiency (CVI) affects 25 million adults in the United States. Little emphasis has been placed on inflammatory changes associated with CVI. We hypothesize that in patients with early to mid-stage benign varicose vein disease, differences in circulating inflammatory mediators will be manifested in blood draining the involved area vs circulating blood in control subjects. METHODS Patients undergoing either endovenous ablation or sclerotherapy for Clinical, Etiology, Anatomy, and Pathophysiology clinical class 3 to 5 disease underwent phlebotomy from regional veins at the time of the procedure. The patient's age, gender, clinical class, duration of symptoms, presence of superficial truncal reflux by duplex ultrasound, and treatment modality were recorded. Plasma from patients and banked blood samples from healthy volunteers (HVs) were subjected to Luminex (EMD Millipore, Billerica, Mass) to evaluate the expression of an established panel of 20 inflammatory mediators. Mediator concentrations were compared between patients and HVs using Mann-Whitney U tests. Importantly, computational analysis allowed us to compare not only the panel of inflammatory mediators but also the inflammatory networks connecting these mediators to one another. Principal components were analyzed to assess network robustness in each group. RESULTS CVI venous blood revealed significantly lower levels of monokine induced by γ interferon, soluble interleukin (IL) 2 receptor α chain, IL-4, IL-6, IL-7, tumor necrosis factor α, eotaxin, and granulocyte-macrophage colony-stimulating factor than blood from controls. Inflammatory networks were significantly less complex and less robust in the CVI patients compared with HVs. Based on principal component analysis, responses among HVs were more varied than those of CVI patients. CONCLUSIONS We demonstrate that patients with CVI have significant differences not only in blood-borne inflammatory mediators but also in the interconnectedness of these mediators with one another and in their principal inflammatory characteristics. Results suggest hypoinflammation in chronic nonhealing changes in CVI. These novel findings, if validated in larger cohorts, may help predict the risk of disease progression or response to therapy in the future and may guide mechanistic studies on tissue responses to CVI.
Collapse
Affiliation(s)
- Ulka Sachdev
- Division of Vascular Surgery, University of Pittsburgh, Pittsburgh, Pa; Department of Surgery, University of Pittsburgh, Pittsburgh, Pa.
| | - Lena Vodovotz
- School of Medicine, University of Pittsburgh, Pittsburgh, Pa
| | - Julie Bitner
- Division of Vascular Surgery, University of Pittsburgh, Pittsburgh, Pa
| | - Derek Barclay
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pa
| | - Ruben Zamora
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pa
| | - Jinling Yin
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pa
| | | | - Yoram Vodovotz
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pa
| |
Collapse
|
16
|
Zhang C, Ward J, Dauch JR, Tanzi RE, Cheng HT. Cytokine-mediated inflammation mediates painful neuropathy from metabolic syndrome. PLoS One 2018; 13:e0192333. [PMID: 29408929 PMCID: PMC5800683 DOI: 10.1371/journal.pone.0192333] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2017] [Accepted: 12/29/2017] [Indexed: 12/29/2022] Open
Abstract
Painful neuropathy (PN) is a prevalent condition in patients with metabolic syndrome (MetS). However, the pathogenic mechanisms of metabolic syndrome-associated painful neuropathy (MetSPN) remain unclear. In the current study, high-fat-fed mice (HF mice) were used to study MetSPN. HF mice developed MetS phenotypes, including increased body weight, elevated plasma cholesterol levels, and insulin resistance in comparison with control-fat-fed (CF) mice. Subsequently, HF mice developed mechanical allodynia and thermal hyperalgesia in hind paws after 8 wk of diet treatment. These pain behaviors coincided with increased densities of nociceptive epidermal nerve fibers and inflammatory cells such as Langerhans cells and macrophages in hind paw skin. To study the effect of MetS on profiles of cytokine expression in HF mice, we used a multiplex cytokine assay to study the protein expression of 12 pro-inflammatory and anti-inflammatory cytokines in dorsal root ganglion and serum samples. This method detected the elevated levels of proinflammatory cytokines, including tumor necrosis factor (TNF)-α, and interleukin (IL)-6, IL-1β as well as reduced anti-inflammatory IL-10 in lumbar dorsal root ganglia (LDRG) of HF mice. Intraperitoneal administration of IL-10 reduced the upregulation of pro-inflammatory cytokines and alleviated pain behaviors in HF mice without affecting MetS phenotypes. Our findings suggested targeting HF-induced cytokine dysregulation could be an effective strategy for treating MetSPN.
Collapse
Affiliation(s)
- Can Zhang
- Genetics and Aging Research Unit, MassGeneral Institute for Neurodegenerative Disease, Department of Neurology, Massachusetts General Hospital, Boston, Massachusetts, United States of America
| | - Joseph Ward
- Genetics and Aging Research Unit, MassGeneral Institute for Neurodegenerative Disease, Department of Neurology, Massachusetts General Hospital, Boston, Massachusetts, United States of America
| | - Jacqueline R. Dauch
- Department of Neurology, University of Michigan Medical Center, Ann Arbor, Michigan, United States of America
| | - Rudolph E. Tanzi
- Genetics and Aging Research Unit, MassGeneral Institute for Neurodegenerative Disease, Department of Neurology, Massachusetts General Hospital, Boston, Massachusetts, United States of America
| | - Hsinlin T. Cheng
- Genetics and Aging Research Unit, MassGeneral Institute for Neurodegenerative Disease, Department of Neurology, Massachusetts General Hospital, Boston, Massachusetts, United States of America
- * E-mail:
| |
Collapse
|
17
|
Ebbeling CB, Klein GL, Luoto PK, Wong JMW, Bielak L, Eddy RG, Steltz SK, Devlin C, Sandman M, Hron B, Shimy K, Heymsfield SB, Wolfe RR, Wong WW, Feldman HA, Ludwig DS. A randomized study of dietary composition during weight-loss maintenance: Rationale, study design, intervention, and assessment. Contemp Clin Trials 2018; 65:76-86. [PMID: 29233719 PMCID: PMC6055230 DOI: 10.1016/j.cct.2017.12.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2017] [Revised: 12/07/2017] [Accepted: 12/09/2017] [Indexed: 12/19/2022]
Abstract
BACKGROUND While many people with overweight or obesity can lose weight temporarily, most have difficulty maintaining weight loss over the long term. Studies of dietary composition typically focus on weight loss, rather than weight-loss maintenance, and rely on nutrition education and dietary counseling, rather than controlled feeding protocols. Variation in initial weight loss and insufficient differentiation among treatments confound interpretation of results and compromise conclusions regarding the weight-independent effects of dietary composition. The aim of the present study was to evaluate three test diets differing in carbohydrate-to-fat ratio during weight-loss maintenance. DESIGN AND DIETARY INTERVENTIONS Following weight loss corresponding to 12±2% of baseline body weight on a standard run-in diet, 164 participants aged 18 to 65years were randomly assigned to one of three test diets for weight-loss maintenance through 20weeks (test phase). We fed them high-carbohydrate (60% of energy from carbohydrate, 20% fat), moderate-carbohydrate (40% carbohydrate, 40% fat), and low-carbohydrate (20% carbohydrate, 60% fat) diets, controlled for protein content (20% of energy). During a 2-week ad libitum feeding phase following the test phase, we assessed the effect of the test diets on body weight. OUTCOMES The primary outcome was total energy expenditure, assessed by doubly-labeled water methodology. Secondary outcomes included resting energy expenditure and physical activity, chronic disease risk factors, and variables to inform an understanding of physiological mechanisms by which dietary carbohydrate-to-fat ratio might influence metabolism. Weight change during the ad libitum feeding phase was conceptualized as a proxy measure of hunger.
Collapse
Affiliation(s)
- Cara B Ebbeling
- New Balance Foundation Obesity Prevention Center, Division of Endocrinology, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA 02115, United States.
| | - Gloria L Klein
- New Balance Foundation Obesity Prevention Center, Division of Endocrinology, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA 02115, United States
| | - Patricia K Luoto
- Department of Food and Nutrition, Framingham State University, 100 State Street, PO Box 9101, Framingham, MA 01701, United States
| | - Julia M W Wong
- New Balance Foundation Obesity Prevention Center, Division of Endocrinology, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA 02115, United States
| | - Lisa Bielak
- New Balance Foundation Obesity Prevention Center, Division of Endocrinology, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA 02115, United States
| | - Ralph G Eddy
- Sodexo Inc., Framingham State University, 100 State Street, PO Box 9101, Framingham, MA 01701, United States
| | - Sarah K Steltz
- New Balance Foundation Obesity Prevention Center, Division of Endocrinology, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA 02115, United States
| | - Courtenay Devlin
- New Balance Foundation Obesity Prevention Center, Division of Endocrinology, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA 02115, United States
| | - Megan Sandman
- New Balance Foundation Obesity Prevention Center, Division of Endocrinology, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA 02115, United States
| | - Bridget Hron
- New Balance Foundation Obesity Prevention Center, Division of Endocrinology, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA 02115, United States; Division of Gastroenterology, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA 02115, United States
| | - Kim Shimy
- New Balance Foundation Obesity Prevention Center, Division of Endocrinology, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA 02115, United States
| | - Steven B Heymsfield
- Pennington Biomedical Research Center, Louisiana State University System, Baton Rouge, LA, United States
| | - Robert R Wolfe
- University of Arkansas for Medical Sciences, Little Rock, AR, United States
| | - William W Wong
- Baylor College of Medicine, USDA/ARS Children's Nutrition Research Center, 1100 Bates Street, Houston, TX 77030, United States
| | - Henry A Feldman
- Institutional Centers for Clinical and Translational Research, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA 02115, United States
| | - David S Ludwig
- New Balance Foundation Obesity Prevention Center, Division of Endocrinology, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA 02115, United States
| |
Collapse
|
18
|
Izumi Y. [Anti-inflammatory action of the transcription factor Nrf2]. Nihon Yakurigaku Zasshi 2018; 152:209. [PMID: 30298844 DOI: 10.1254/fpj.152.209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
|
19
|
Abstract
The acute inflammatory response is host-protective to contain foreign invaders. Many of today's pharmacopeia that block pro-inflammatory chemical mediators can cause serious unwanted side effects such as immune suppression. Uncontrolled inflammation is now considered a pathophysiologic basis associated with many widely occurring diseases such as cardiovascular disease, neurodegenerative diseases, diabetes, obesity and asthma, as well as the classic inflammatory diseases, e.g. arthritis, periodontal diseases. The inflammatory response is designated to be a self-limited process that produces a superfamily of chemical mediators that stimulate resolution of inflammatory responses. Specialized proresolving mediators (SPM) uncovered in recent years are endogenous mediators that include omega-3-derived families resolvins, protectins and maresins, as well as arachidonic acid-derived (n-6) lipoxins that stimulate and promote resolution of inflammation, clearance of microbes, reduce pain and promote tissue regeneration via novel mechanisms. Here, we review recent evidence from human and preclinical animal studies, together with the structural and functional elucidation of SPM indicating the SPM as physiologic mediators and pharmacologic agonists that stimulate resolution of inflammation and infection. These results suggest that it is time to develop immunoresolvents as agonists for testing resolution pharmacology in nutrition and health as well as in human diseases and during surgery.
Collapse
Affiliation(s)
- Nan Chiang
- Center for Experimental Therapeutics and Reperfusion Injury, Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115, United States
| | - Charles N Serhan
- Center for Experimental Therapeutics and Reperfusion Injury, Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115, United States.
| |
Collapse
|
20
|
Barker-Haliski ML, Löscher W, White HS, Galanopoulou AS. Neuroinflammation in epileptogenesis: Insights and translational perspectives from new models of epilepsy. Epilepsia 2017; 58 Suppl 3:39-47. [PMID: 28675559 PMCID: PMC5604891 DOI: 10.1111/epi.13785] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/13/2017] [Indexed: 12/25/2022]
Abstract
Animal models have provided a wealth of information on mechanisms of epileptogenesis and comorbidogenesis, and have significantly advanced our ability to investigate the potential of new therapies. Processes implicating brain inflammation have been increasingly observed in epilepsy research. Herein we discuss the progress on animal models of epilepsy and comorbidities that inform us on the potential role of inflammation in epileptogenesis and comorbidity pathogenesis in rodent models of West syndrome and the Theiler's murine encephalomyelitis virus (TMEV) mouse model of viral encephalitis-induced epilepsy. Rat models of infantile spasms were generated in rat pups after right intracerebral injections of proinflammatory compounds (lipopolysaccharides with or without doxorubicin, or cytokines) and were longitudinally monitored for epileptic spasms and neurodevelopmental and cognitive deficits. Anti-inflammatory treatments were tested after the onset of spasms. The TMEV mouse model was induced with intracerebral administration of TMEV and prospective monitoring for handling-induced seizures or seizure susceptibility, as well as long-term evaluations of behavioral comorbidities of epilepsy. Inflammatory processes are evident in both models and are implicated in the pathogenesis of the observed seizures and comorbidities. A common feature of these models, based on the data so far available, is their pharmacoresistant profile. The presented data support the role of inflammatory pathways in epileptogenesis and comorbidities in two distinct epilepsy models. Pharmacoresistance is a common feature of both inflammation-based models. Utilization of these models may facilitate the identification of age-specific, syndrome- or etiology-specific therapies for the epilepsies and attendant comorbidities, including the drug-resistant forms.
Collapse
Affiliation(s)
| | - Wolfgang Löscher
- Department of Pharmacology, Toxicology, and Pharmacy, University of Veterinary Medicine, Hannover, Germany
| | - H. Steve White
- Department of Pharmacy, School of Pharmacy, University of Washington, Seattle, WA, USA
| | - Aristea S. Galanopoulou
- Saul R. Korey Department of Neurology, Dominick P. Purpura Department of Neuroscience, Laboratory of Developmental Epilepsy, Bronx NY USA
| |
Collapse
|
21
|
Ryabov VV, Kirgizova MA, Suslova TE, Karas SI, Markov VA, Karpov RS. Relationships of growth factors, proinflammatory cytokines, and anti-inflammatory cytokines with long-term clinical results of autologous bone marrow mononuclear cell transplantation in STEMI. PLoS One 2017; 12:e0176900. [PMID: 28558042 PMCID: PMC5448725 DOI: 10.1371/journal.pone.0176900] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Accepted: 04/19/2017] [Indexed: 01/16/2023] Open
Abstract
AIM The aim of the study was to test the hypothesis suggesting that the pre-intervention levels of proinflammatory cytokines, anti-inflammatory cytokines, and angiogenic growth factors predict the long-term clinical results of autologous bone marrow-derived mononuclear cell (ABMMC) transplantation in patients with primary ST elevation myocardial infarction (STEMI). METHODS AND RESULTS From 2003 to 2006, a total of 62 patients with primary STEMI were enrolled in an open randomized study registered under the title ESTABOMA. Patients were randomized into two groups: group 1 included patients treated with percutaneous coronary intervention (PCI) and ABMMC transplantation (n = 28); group 2 comprised patients treated only with PCI (n = 34). Follow-up study was performed 7.96 ± 0.96 years after STEMI and involved physical examination, six-minute walk test, echocardiography, and determination of brain natriuretic peptide (BNP) levels. The total and cardiovascular mortality rates were higher in group 1 compared with group 2: 36% (n = 10) vs. 12% (n = 4) (p = 0.02) and 29% (n = 8) vs. 6% (n = 2) (p = 0.03), respectively. Lower levels of proinflammatory cytokines were observed in group 1 after PCI and ABMMC transplantation. Serum levels of FGF, VEGF, and IL-10, determined before PCI and ABMMC transplantation were prognostically significant long-term indicators of unfavorable course of CAD after STEMI.
Collapse
Affiliation(s)
- Vyacheslav V. Ryabov
- Cardiology Research Institute, Tomsk National Research Medical Center, Tomsk, Russian Federation
- Siberian State Medical University, Department of Cardiology at the Faculty of Continuous Medical Education, Tomsk, Russian Federation
- National Research Tomsk State University, Laboratory of Translational Cellular and Molecular Biomedicine, Tomsk, Russian Federation
- * E-mail:
| | - Marina A. Kirgizova
- Cardiology Research Institute, Tomsk National Research Medical Center, Tomsk, Russian Federation
| | - Tatiana E. Suslova
- Cardiology Research Institute, Tomsk National Research Medical Center, Tomsk, Russian Federation
- National Research Tomsk State University, Laboratory of Translational Cellular and Molecular Biomedicine, Tomsk, Russian Federation
| | - Sergei I. Karas
- Siberian State Medical University, Department of Cardiology at the Faculty of Continuous Medical Education, Tomsk, Russian Federation
| | - Valentin A. Markov
- Cardiology Research Institute, Tomsk National Research Medical Center, Tomsk, Russian Federation
- Siberian State Medical University, Department of Cardiology at the Faculty of Continuous Medical Education, Tomsk, Russian Federation
| | - Rostislav S. Karpov
- Cardiology Research Institute, Tomsk National Research Medical Center, Tomsk, Russian Federation
- Siberian State Medical University, Department of Cardiology at the Faculty of Continuous Medical Education, Tomsk, Russian Federation
| |
Collapse
|
22
|
Abstract
Asthma is a chronic airway inflammation that is characterized by intense eosinophil infiltrates, mucus hypersecretion, airway remodeling, and airway hyperresponsiveness. Interleukin (IL)-35 and IL-37 are two cytokines with anti-inflammatory effects found in immune response. Recent findings suggested that expressions of IL-35 and IL-37 are abnormal in asthma. Functional analysis further confirmed the important roles of them in the pathogenesis of asthma. The present study reviewed the updated evidence indicating the roles of IL-35 and IL-37 in asthma. Hopefully, the information obtained may lead to a better understanding of the pathogenesis of the disease.
Collapse
Affiliation(s)
- Daiju Hu
- Department of Respiratory Medicine, Affiliated Anhui Provincial Hospital, Anhui Medical University, 17 Lujiang Road, Hefei, Anhui, 230001, China.
| |
Collapse
|
23
|
Troeltzsch M, Lohse N, Moser N, Kauffmann P, Cordesmeyer R, Aung T, Brodine B, Troeltzsch M. A review of pathogenesis, diagnosis, treatment options, and differential diagnosis of odontogenic infections: a rather mundane pathology? Quintessence Int 2016; 46:351-61. [PMID: 25692182 DOI: 10.3290/j.qi.a33448] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Odontogenic infections are common in the dental practice and their treatment should be a standard procedure for every dentist. For optimal management of septic intraoral problems, the practitioner must understand the underlying causes and etiologies of odontogenic infections. Therefore, the purpose of this article is to outline basic inflammatory processes involved in the development of odontogenic and intraoral infections including relevant pathogens, biochemical processes mediated by pro-inflammatory molecules, the basics of abscess formation, the host response, and the clinical appearance of intraoral septic processes. Furthermore, treatment modalities of odontogenic infections and associated lesions are discussed and a brief explanation of possible complications and their management is provided.
Collapse
|
24
|
Abstract
During physiological conditions, the skeleton is remodeled in so-called bone multi-cellular units. Such units have been estimated to exist at 1–2 x 106 sites in the adult skeleton. The number and activities of these units are regulated by a variety of hormones and cytokines. In post-menopausal osteoporosis, lack of estrogen leads to increased numbers of bone multi-cellular units and to uncoupling of bone formation and bone resorption, resulting in too little bone laid down by osteoblasts compared with the amount of bone resorbed by osteoclasts. Inflammatory processes in the vicinity of the skeleton, e.g., marginal and apical periodontitis, will affect the remodeling of the nearby bone tissue in such a way that, in most patients, the amount of bone resorbed exceeds that being formed, resulting in net bone loss (inflammation-induced osteolysis). In some patients, however, inflammation-induced bone formation exceeds resorption, and a sclerotic lesion will develop. The cellular and molecular pathogenetic mechanisms in inflammation-induced osteolysis and sclerosis are discussed in the present review. The cytokines believed to be involved in inflammation-induced remodeling are very similar to those suggested to play crucial roles in post-menopausal osteoporosis. In patients with periodontal disease and concomitant post-menopausal osteoporosis, the possibility exists that the lack of estrogen influences the activities of bone cells and immune cells in such a way that the progression of alveolar bone loss will be enhanced. In the present paper, the evidence for and against this hypothesis is presented.
Collapse
Affiliation(s)
- U H Lerner
- Department of Oral Cell Biology, Umeå University, Umeå SE-901 87, Sweden.
| |
Collapse
|
25
|
Abstract
IL-18 is a pro-inflammatory cytokine that is important in the regulation of T-cells and is elevated in inflammatory disorders such as periodontal disease. Vasoactive intestinal peptide (VIP) modulates immune responses to the periodontal pathogen Porphyromonas gingivalis ( Pg). Our objective was to investigate the effect of Pg LPS on IL-18 and its natural inhibitor, IL-18 binding protein (IL-18BPa), in human monocytes, and the effect of VIP on this system. We demonstrated that Pg LPS induced both IL-18 and IL-18BPa secretion in cultures of the human monocytic cell line THP-1, as measured by specific ELISA. The addition of antibodies to IL-18BPa to the stimulated THP-1 cultures resulted in increased levels of free IL-18, indicating a specific interaction between IL18 and IL-18BPa in this system. VIP (10−8M) inhibited both IL-18 and IL-18Bpa secretion by stimulated monocytes. We conclude that IL-18 and IL-18BPa secretion by monocytes is part of the immune response to Pg, and that VIP can inhibit this process.
Collapse
Affiliation(s)
- N Foster
- Oral Microbiology and Host Responses Group, Oral Biology, School of Dental Sciences, University of Newcastle upon Tyne, UK
| | | | | | | | | |
Collapse
|
26
|
Liu CJ, Xie L, Cui C, Chu M, Zhao HD, Yao L, Li YH, Schachner M, Shen YQ. Beneficial roles of melanoma cell adhesion molecule in spinal cord transection recovery in adult zebrafish. J Neurochem 2016; 139:187-196. [PMID: 27318029 DOI: 10.1111/jnc.13707] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Revised: 06/10/2016] [Accepted: 06/12/2016] [Indexed: 02/05/2023]
Abstract
Melanoma cell adhesion molecule (MCAM) is a multifunctional protein involved in miscellaneous processes, including development and tumor angiogenesis. Here, spinal cord transection in adult zebrafish was used to investigate the effects of MCAM on spinal cord injury (SCI) and subsequent recovery. Expression of MCAM mRNA increased and co-localized with motoneurons in the spinal cord after SCI. With MCAM morpholino treatment, inhibition of MCAM retarded both axon regrowth and locomotor recovery in the spinal cord injured zebrafish. Furthermore, MCAM mRNA expression was also observed in fli1a:EGFP transgenic zebrafish, which specifically show labeled blood vessels. Inhibition of MCAM down-regulated the expression of angiogenesis-related factors, such as VEGFR-2, p-p38 and p-AKT, and the inflammatory factors TNF-α, IL-1β and IL-8. Taken together, these data suggest that MCAM may have a beneficial role in the recovery from SCI, via the promotion of neurogenesis and angiogenesis. In the context of adult zebrafish spinal cord injury, we proved that Melanoma cell adhesion molecule (MCAM) is beneficial to the recovery, possibly via mechanisms of angiogenensis and inflammation. MCAM promotes angiogenesis by adjusting VEGFR-2, p-p38 and p-AKT. MCAM affects inflammatory factors such as TNF-α, IL-1β and IL-8. Our results extend the beneficial role of MCAM in the regeneration of central nervous system.
Collapse
Affiliation(s)
- Chun-Jie Liu
- Jiangnan University Medical School, Wuxi, China
- Center for Neuroscience, Shantou University Medical College, Shantou, China
| | - Lin Xie
- Affiliated Hospital of Jining Medical University, Jining, China
| | - Chun Cui
- Jiangnan University Medical School, Wuxi, China
| | - Min Chu
- Jiangnan University Medical School, Wuxi, China
| | - Hou-De Zhao
- Jiangnan University Medical School, Wuxi, China
- Center for Neuroscience, Shantou University Medical College, Shantou, China
| | - Li Yao
- Jiangnan University Medical School, Wuxi, China
| | - Yu-Hong Li
- Jiangnan University Medical School, Wuxi, China
| | - Melitta Schachner
- Center for Neuroscience, Shantou University Medical College, Shantou, China
| | - Yan-Qin Shen
- Jiangnan University Medical School, Wuxi, China.
- Center for Neuroscience, Shantou University Medical College, Shantou, China.
| |
Collapse
|
27
|
Dumas E, Neagoe PE, McDonald PP, White M, Sirois MG. New Insights into the Pro-Inflammatory Activities of Ang1 on Neutrophils: Induction of MIP-1β Synthesis and Release. PLoS One 2016; 11:e0163140. [PMID: 27632174 PMCID: PMC5025150 DOI: 10.1371/journal.pone.0163140] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2015] [Accepted: 09/02/2016] [Indexed: 12/28/2022] Open
Abstract
We reported the expression of angiopoietin Tie2 receptor on human neutrophils and the capacity of angiopoietins (Ang1 and Ang2) to induce pro-inflammatory activities, such as platelet-activating factor synthesis, β2-integrin activation and neutrophil migration. Recently, we observed differential effects between both angiopoietins, namely, the capacity of Ang1, but not Ang2, to promote rapid interleukin-8 synthesis and release, as well as neutrophil viability. Herein, we addressed whether Ang1 and/or Ang2 could modulate the synthesis and release of macrophage inflammatory protein-1β (MIP-1β) by neutrophils. Neutrophils were isolated from blood of healthy volunteers; intracellular and extracellular MIP-1β protein concentrations were assessed by ELISA. After 24 hours, the basal intracellular and extracellular MIP-1β protein concentrations were ≈500 and 100 pg/106 neutrophils, respectively. Treatment with Ang1 (10 nM) increased neutrophil intracellular and extracellular MIP-1β concentrations by 310 and 388% respectively. Pretreatment with PI3K (LY294002), p38 MAPK (SB203580) and MEK (U0126) inhibitors completely inhibited Ang1-mediated increase of MIP-1β intracellular and extracellular protein levels. Pretreatment with NF-κB complex inhibitors, namely Bay11-7085 and IKK inhibitor VII or with a transcription inhibitor (actinomycin D) and protein synthesis inhibitor (cycloheximide), did also abrogate Ang1-mediated increase of MIP-1β intracellular and extracellular protein levels. We validated by RT-qPCR analyses the effect of Ang1 on the induction of MIP-1β mRNA levels. Our study is the first one to report Ang1 capacity to induce MIP-1β gene expression, protein synthesis and release from neutrophils, and that these effects are mediated by PI3K, p38 MAPK and MEK activation and downstream NF-κB activation.
Collapse
Affiliation(s)
- Elizabeth Dumas
- Research center, Montreal Heart Institute, Montreal (Quebec), Canada
- Departments of pharmacology, Faculty of medicine, Université de Montréal, Montreal (Quebec), Canada
| | - Paul-Eduard Neagoe
- Research center, Montreal Heart Institute, Montreal (Quebec), Canada
- Departments of pharmacology, Faculty of medicine, Université de Montréal, Montreal (Quebec), Canada
| | - Patrick P. McDonald
- Pulmonary Division/Research, Faculty of Medicine, Université de Sherbrooke, Sherbrooke (Quebec), Canada
| | - Michel White
- Research center, Montreal Heart Institute, Montreal (Quebec), Canada
- Departments of medicine, Faculty of medicine, Université de Montréal, Montreal (Quebec), Canada
| | - Martin G. Sirois
- Research center, Montreal Heart Institute, Montreal (Quebec), Canada
- Departments of pharmacology, Faculty of medicine, Université de Montréal, Montreal (Quebec), Canada
- * E-mail:
| |
Collapse
|
28
|
Wang C, Liu Q, Chen F, Xu W, Zhang C, Xiao W. IL-25 Promotes Th2 Immunity Responses in Asthmatic Mice via Nuocytes Activation. PLoS One 2016; 11:e0162393. [PMID: 27617447 PMCID: PMC5019461 DOI: 10.1371/journal.pone.0162393] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2016] [Accepted: 06/29/2016] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Interleukin-25 (IL-25) is a potent activator of type-2 immune responses, and is responsible for airway inflammation in asthma. Previous reports have shown that IL-25 expressed hyper-reactivity in an experimental mouse-model of asthma. In addition, the production of IL-13/IL-5 promoted by nuocytes induced airway inflammation. Thus, it has been questioned whether blocking IL-25 against its receptor IL-17BR could inhibit the expression of IL-13 and IL-5 via nuocytes, and further protect against inflammation in ovalbumin (OVA) induced mouse-model of asthma. METHODS In this study, in order to investigate the correlation among IL-25, IL-5, IL-13 and nuocyte activities, we used OVA-sensitization and -challenging to induce the mouse model of asthma. The murine asthmatic model was validated by histology. The expressions of IL-5, IL-13 and IL-25 were detected by ELISA, quantitative real-time PCR, and western blotting of the lung tissue. Nuocyte activation was identified by the levels of ICOS (clone C398.4A) and T1/ST2 (cloneDJ8) (acting as nuocytes surface markers) in the bronchoalveolar lavage fluid (BALF). This, in turn, was done by means of flow cytometry. The expressions of IL-25, IL-5 and IL-13 in our murine model were detected in the BALF. RESULTS The mice sensitized and challenged with OVA showed a high expression of IL-25 in both the mRNA and protein levels in lungs. The expressions of ICOS and T1/ST2 in BALF were increased. A significant correlation between IL-25 mRNA, protein, and other Th2-cell producing cytokines (such as IL-5 and IL-13) moreover were identified. Furthermore, when the asthmatic mice were treated with anti-IL-25, both the inflammatory cells' infiltration and the inflammatory cytokines' secretion were significantly decreased. The present findings indicate that IL-25 might be involved in a series of asthmatic immune responses, playing an important role in the increase of nuocytes, and that its activation is necessary in maintaining Th2 central memory and sustaining asthmatic inflammation. CONCLUSION This study showed that IL-25 promoted the accumulation of ICOS and T1/ST2 on nuocytes, further induced the pro-inflammatory Th2 cells, and promoted Th2 cytokine responses in OVA-induced airway inflammation.
Collapse
Affiliation(s)
- Chao Wang
- Department of Respiratory Medicine, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, Shandong, China
| | - Qingfa Liu
- School of Medical Sciences, Shandong University, Jinan, Shandong, China
| | - Fangfang Chen
- Department of Respiratory Medicine, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, Shandong, China
| | - Wenjuan Xu
- Department of Respiratory Medicine, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, Shandong, China
| | - Caiqing Zhang
- Department of Respiratory Medicine, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, Shandong, China
- * E-mail: (WX); (CQZ)
| | - Wei Xiao
- Department of Respiratory Medicine, Qilu Hospital of Shandong University, Jinan, Shandong, China
- * E-mail: (WX); (CQZ)
| |
Collapse
|
29
|
Palaska I, Gagari E, Theoharides TC. The effects of P. gingivalis and E. coli LPS on the expression of proinflammatory mediators in human mast cells and their relevance to periodontal disease. J BIOL REG HOMEOS AG 2016; 30:655-664. [PMID: 27655482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Mast cells (MCs) are tissue-resident immune cells that participate in a variety of allergic and inflammatory conditions, including periodontal disease, through the release of cytokines, chemokines and proteolytic enzymes. Porhyromonas gingivalis (P. g) is widely recognized as a major pathogen in the development and progression of periodontitis. Here we compared the differential effects of lipopolysaccharides (LPS) from P. g and E. coli on the expression and production of tumor necrosis factor (TNF), vascular endothelial growth factor (VEGF) and monocyte chemoattractant protein (MCP-1) by human MCs. Human LAD2 MCs were stimulated with LPS from either P. g or E. coli (1-1000 ng/ml). MCs were also stimulated with SP (2μM) serving as the positive control or media alone as the negative control. After 24 h, the cells and supernatant fluids were collected and analyzed for β-Hexosaminidase (β-hex) spectrophotometrically, TNF, VEGF and MCP-1 release by ELISA and real-time polymerase chain reaction (PCR) for mediator gene expression, respectively. To assess the functional role of tolllike receptors (TRL) in mediator release, MCs were pre-incubated with either anti-TLR2 or anti- TLR4 (2 μg/ml) polyclonal antibody for 1 h before stimulation with LPS. When MCs were stimulated with SP (2 μM), there was a statistically significant β-hex release as well as release of TNF, VEGF and MCP-1. Stimulation of MCs with either type of LPS did not induce degranulation based on the lack of β-hex release. However, both types of LPS stimulated expression and release of TNF, VEGF and MCP-1. Although, P. g LPS induced significant release of TNF, VEGF and MCP-1, the effect was not concentration-dependent. There was no statistically significant difference between the effects of P. g and E. coli LPS. P. g LPS stimulated TNF through TLR-2 while E. coli utilized TRL-4 instead. In contrast, VEGF release by P. g LPS required both TRL-2 and TRL-4 while E. coli LPS required TLR-4. Release of MCP-1 was independent of TLR-2 or TLR-4. P. g LPS activates human MCs to generate and release TNF, VEGF and MCP-1 through different TLRs than E. coli LPS. MCs may, therefore, be involved in the inflammatory processes responsible for periodontal disease.
Collapse
Affiliation(s)
- I Palaska
- Molecular Immunopharmacology and Drug Discovery Laboratory, Department of Integrative Physiology and Pathobiology, Tufts University School of Medicine, Boston, MA, USA
| | - E Gagari
- Oral Medicine Clinics, A. Syggros Hospital of Dermatologic and Venereal Diseases, Department of Dermatology, School of Medicine, University of Athens, Greece
| | - T C Theoharides
- Molecular Immunopharmacology and Drug Discovery Laboratory, Department of Integrative Physiology and Pathobiology, Tufts University School of Medicine, Boston, MA, USA; Oral Medicine Clinics, A. Syggros Hospital of Dermatologic and Venereal Diseases, Department of Dermatology, School of Medicine, University of Athens, Greece; Department of Internal Medicine, Tufts University School of Medicine, MA, USA
| |
Collapse
|
30
|
Abstract
The co-morbidity of neuropsychiatric disorders, particularly major depressive disorder (MDD) with neurodegenerative diseases, in particular Parkinson's disease (PD) is now well recognized. Indeed, it is suggested that depressive disorders, especially in late life, may be an indication of latent neurodegeneration. Thus, it is not unreasonable to expect that deterrents of MDD may also deter the onset and/or progression of the neurodegenerative diseases including PD. In this review, examples of neuroprotective efficacy of established as well as prospective antidepressants are provided. Conversely, mood-regulating effects of some neuroprotective drugs are also presented. Thus, in addition to currently used antidepressants, ketamine, nicotine, curcumin, and resveratrol are discussed for their dual efficacy. In addition, potential neurobiological substrates for their actions are presented. It is concluded that pharmacological developments of mood-regulating or neuroprotective drugs can have cross benefit in co-morbid conditions of neuropsychiatric and neurodegenerative disorders and that inflammatory and neurotrophic factors play important roles in both conditions.
Collapse
Affiliation(s)
- Yousef Tizabi
- Department of Pharmacology, Howard University College of Medicine, Washington, DC, USA.
| |
Collapse
|
31
|
Cipollone F, Chiarelli F, Iezzi A, Fazia ML, Cuccurullo C, Pini B, De Cesare D, Torello M, Tumini S, Cuccurullo F, Mezzetti A. Relationship between Reduced BCL-2 Expression in Circulating Mononuclear Cells and Early Nephropathy in Type 1 Diabetes. Int J Immunopathol Pharmacol 2016; 18:625-35. [PMID: 16388709 DOI: 10.1177/039463200501800403] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Microalbuminuria is the earliest clinical evidence of diabetic nephropathy, but the mechanisms linking hyperglycemia and kidney complications are not clear. The aim of this study was to evaluate whether enhanced oxidative stress in patients with microalbuminuria can contribute to diabetic nephropathy development through downregulation of the antiapoptotic gene Bcl-2 that promotes in turn a pro-inflammatory status. We studied 30 patients with type 1 diabetes (15 with and 15 without microalbuminuria) compared to 15 matched healthy controls. Plasma oxidant status, and expression of Bcl-2, activated NF-kB, inducible Nitric Oxide synthase (iNOS), and monocyte chemoattractant protein (MCP)-1 in circulating monocytes were evaluated at baseline and after 8-week oral vitamin E treatment (600 mg b.i.d.). Bcl-2 expression was significantly reduced in microalbuminuric diabetic patients as a consequence of increased oxidant burden secondary to persistent hyperglycemia. Bcl-2 down-regulation was associated with enhanced expression of NF-kB, iNOS and MCP-1, and showed a strong correlation with the albumin excretion rate. Low Bcl-2 expression and high inflammatory status were normalized by vitamin E both in vivo and in vitro. Our study showed that Bcl-2 down-regulation in diabetic patients with poor glycemic control results in the activation of the NF-kB pathway leading to the development of nephropathy. Vitamin E might provide a novel form of therapy for prevention of nephropathy in diabetic patients in which an acceptable glycemic control is difficult to achieve despite insulin therapy.
Collapse
Affiliation(s)
- F Cipollone
- Atherosclerosis Prevention Center, University of Chieti G D Annunzio School of Medicine, Chieti, Italy.
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
32
|
Kempuraj D, Frydas S, Conti P, Kandere- Grzybowska K, Boucher W, Letourneau R, Madhappan B, Huang SH, Sugimoto K, Papadopoulou NG, Christodoulou S, Theoharides TC. Interleukin-25 (OR IL-17E): A New IL-17 Family Member with Growth Factor/Inflammatory Actions. Int J Immunopathol Pharmacol 2016; 16:185-8. [PMID: 14611719 DOI: 10.1177/039463200301600301] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
|
33
|
Tian Y, Gawlak G, O'Donnell JJ, Mambetsariev I, Birukova AA. Modulation of Endothelial Inflammation by Low and High Magnitude Cyclic Stretch. PLoS One 2016; 11:e0153387. [PMID: 27128976 PMCID: PMC4851399 DOI: 10.1371/journal.pone.0153387] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2015] [Accepted: 03/29/2016] [Indexed: 11/29/2022] Open
Abstract
Excessive mechanical ventilation exerts pathologic mechanical strain on lung vascular endothelium and promotes endothelial cell (EC) inflammatory activation; however, the specific mechanisms underlying EC inflammatory response caused by mechanical ventilation related cyclic stretch (CS) remain unclear. This study investigated the effects of chronic exposure to CS at physiologic (5%) and pathologic (18%) magnitude on pulmonary EC inflammatory status in control conditions and bacterial lipopolysacharide (LPS)-stimulated conditions. EC exposure to high or low CS magnitudes for 28–72 hrs had distinct effects on EC inflammatory activation. 18% CS increased surface expression of endothelial adhesion molecule ICAM1 and release of its soluble form (sICAM1) and inflammatory cytokine IL-8 by CS-stimulated pulmonary endothelial cells (EC). EC inflammatory activation was not observed in EC exposed to 5% CS. Chronic exposure to 18% CS, but not to 5% CS, augmented ICAM1 and IL-8 production and EC monolayer barrier disruption induced by LPS. 18% CS, but not 5% CS, stimulated expression of RhoA GTPase-specific guanine nucleotide exchange factor GEF-H1. GEF-H1 knockdown using gene-specific siRNA abolished 18% CS-induced ICAM1 expression and sICAM1 and IL-8 release by EC. GEF-H1 knockdown also prevented disruption of EC monolayer integrity and attenuated sICAM1 and IL-8 release in the two-hit model of EC barrier dysfunction caused by combined stimulation with 18% CS and LPS. These data demonstrate that exacerbation of inflammatory response by pulmonary endothelium exposed to excessive mechanical stretch is mediated by CS-induced induction of Rho activating protein GEF-H1.
Collapse
Affiliation(s)
- Yufeng Tian
- Lung Injury Center, Section of Pulmonary and Critical Medicine, Department of Medicine, University of Chicago, Chicago, Illinois 60637, United States of America
| | - Grzegorz Gawlak
- Lung Injury Center, Section of Pulmonary and Critical Medicine, Department of Medicine, University of Chicago, Chicago, Illinois 60637, United States of America
| | - James J. O'Donnell
- Lung Injury Center, Section of Pulmonary and Critical Medicine, Department of Medicine, University of Chicago, Chicago, Illinois 60637, United States of America
| | - Isa Mambetsariev
- Lung Injury Center, Section of Pulmonary and Critical Medicine, Department of Medicine, University of Chicago, Chicago, Illinois 60637, United States of America
| | - Anna A. Birukova
- Lung Injury Center, Section of Pulmonary and Critical Medicine, Department of Medicine, University of Chicago, Chicago, Illinois 60637, United States of America
- * E-mail:
| |
Collapse
|
34
|
Kang YE, Kim JM, Joung KH, Lee JH, You BR, Choi MJ, Ryu MJ, Ko YB, Lee MA, Lee J, Ku BJ, Shong M, Lee KH, Kim HJ. The Roles of Adipokines, Proinflammatory Cytokines, and Adipose Tissue Macrophages in Obesity-Associated Insulin Resistance in Modest Obesity and Early Metabolic Dysfunction. PLoS One 2016; 11:e0154003. [PMID: 27101398 PMCID: PMC4839620 DOI: 10.1371/journal.pone.0154003] [Citation(s) in RCA: 176] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2015] [Accepted: 03/22/2016] [Indexed: 12/15/2022] Open
Abstract
The roles of adipokines, proinflammatory cytokines, and adipose tissue macrophages in obesity-associated insulin resistance have been explored in both animal and human studies. However, our current understanding of obesity-associated insulin resistance relies on studies of artificial metabolic extremes. The purpose of this study was to explore the roles of adipokines, proinflammatory cytokines, and adipose tissue macrophages in human patients with modest obesity and early metabolic dysfunction. We obtained omental adipose tissue and fasting blood samples from 51 females undergoing gynecologic surgery. We investigated serum concentrations of proinflammatory cytokines and adipokines as well as the mRNA expression of proinflammatory and macrophage phenotype markers in visceral adipose tissue using ELISA and quantitative RT-PCR. We measured adipose tissue inflammation and macrophage infiltration using immunohistochemical analysis. Serum levels of adiponectin and leptin were significantly correlated with HOMA-IR and body mass index. The levels of expression of MCP-1 and TNF-α in visceral adipose tissue were also higher in the obese group (body mass index ≥ 25). The expression of mRNA MCP-1 in visceral adipose tissue was positively correlated with body mass index (r = 0.428, p = 0.037) but not with HOMA-IR, whereas TNF-α in visceral adipose tissue was correlated with HOMA-IR (r = 0.462, p = 0.035) but not with body mass index. There was no obvious change in macrophage phenotype or macrophage infiltration in patients with modest obesity or early metabolic dysfunction. Expression of mRNA CD163/CD68 was significantly related to mitochondrial-associated genes and serum inflammatory cytokine levels of resistin and leptin. These results suggest that changes in the production of inflammatory biomolecules precede increased immune cell infiltration and induction of a macrophage phenotype switch in visceral adipose tissue. Furthermore, serum resistin and leptin have specific roles in the regulation of adipose tissue macrophages in patients with modest obesity or early metabolic dysfunction.
Collapse
Affiliation(s)
- Yea Eun Kang
- Department of Internal medicine, Chungnam National University Hospital, Daejeon, Republic of Korea
| | - Ji Min Kim
- Department of Internal medicine, Chungnam National University Hospital, Daejeon, Republic of Korea
| | - Kyong Hye Joung
- Department of Internal medicine, Chungnam National University Hospital, Daejeon, Republic of Korea
| | - Ju Hee Lee
- Department of Internal medicine, Chungnam National University Hospital, Daejeon, Republic of Korea
| | - Bo Ram You
- Department of Internal medicine, Chungnam National University Hospital, Daejeon, Republic of Korea
| | - Min Jeong Choi
- Department of Internal medicine, Chungnam National University Hospital, Daejeon, Republic of Korea
| | - Min Jeong Ryu
- Department of Internal medicine, Chungnam National University Hospital, Daejeon, Republic of Korea
| | - Young Bok Ko
- Department of Obstetrics and Gynecology, Chungnam National University School of Medicine, Daejeon, Republic of Korea
| | - Min A. Lee
- Department of Obstetrics and Gynecology, Chungnam National University School of Medicine, Daejeon, Republic of Korea
| | - Junguee Lee
- Department of Pathology, Daejeon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Daejeon, Republic of Korea
| | - Bon Jeong Ku
- Department of Internal medicine, Chungnam National University Hospital, Daejeon, Republic of Korea
- Department of internal medicine, Chungnam National University School of Medicine, Daejeon, Republic of Korea
| | - Minho Shong
- Department of Internal medicine, Chungnam National University Hospital, Daejeon, Republic of Korea
- Department of internal medicine, Chungnam National University School of Medicine, Daejeon, Republic of Korea
| | - Ki Hwan Lee
- Department of Obstetrics and Gynecology, Chungnam National University School of Medicine, Daejeon, Republic of Korea
| | - Hyun Jin Kim
- Department of Internal medicine, Chungnam National University Hospital, Daejeon, Republic of Korea
| |
Collapse
|
35
|
Abstract
It is a well-known concept that bone remodeling occurs during orthodontic tooth movement. The orthodontic literature is vastly full of information about the changes occurring on the periodontal ligament level. However, changes occurring in the alveolar bone are being elucidated. The purpose of this chapter is to present some of the studies describing the bone changes associated with orthodontic tooth movement. Initiation of osteoclastogenesis requires inflammation in the adjacent area. Tissue biomarker RANKL responds to the compressive forces. Conversely, an increase in osteoprotegrin biomarker causes a decrease in RANKL and inhibits tooth movement. Osteocyte activity during tooth movement is not well understood. Emerging studies are showing the effect of osteocytes on orthodontic tooth movement. Nitric oxide (NO), produced by osteocytes, is an important regulator of bone response to loading and has been shown to mediate osteoclast activity. iNOS (which produces NO) has been shown to mediate inflammation-induced bone resorption on the compression side. Several molecules have been linked to osteogenesis in tooth movement: TGF-β, BSP, BMPs and epidermal growth factor. Osteogenesis on the tension side is not well understood. Studies have shown increase in the expression of Runx2 on the tension side. Additionally, eNOS (produces NO) mediates bone formation on the tension side. The concept of osteoclastogenesis and osteogenesis is being unraveled.
Collapse
|
36
|
Abstract
Bone is masterfully programmed to repair itself through the coupling of bone formation following bone resorption, a process referred to as coupling. In inflammatory or other conditions, the balance between bone resorption and bone formation shifts so that a net bone loss results. This review focuses on four pathologic conditions in which remodeling leads to net loss of bone, postmenopausal osteoporosis, arthritis, periodontal disease, and disuse bone loss, which is similar to bone loss associated with microgravity. In most of these there is an acceleration of the resorptive process due to increased formation of bone metabolic units. This initially leads to a net bone loss since the time period of resorption is much faster than the time needed for bone formation that follows. In addition, each of these processes is characterized by an uncoupling that leads to net bone loss. Mechanisms responsible for increased rates of bone resorption, i.e. the formation of more bone metabolic units, involve enhanced expression of inflammatory cytokines and increased expression of RANKL. Moreover, the reasons for uncoupling are discussed which range from a decrease in expression of growth factors and bone morphogenetic proteins to increased expression of factors that inhibit Wnt signaling.
Collapse
|
37
|
Abstract
Bone remodeling is a highly coordinated process responsible for bone resorption and formation. It is initiated and modulated by a number of factors including inflammation, changes in hormonal levels and lack of mechanical stimulation. Bone remodeling involves the removal of mineralized bone by osteoclasts followed by the formation of bone matrix through osteoblasts that subsequently becomes mineralized. In addition to the traditional bone cells (osteoclasts, osteoblasts and osteocytes) that are necessary for bone remodeling, several immune cells such as polymorphonuclear neutrophils, B cells and T cells have also been implicated in bone remodelling. Through the receptor activator of nuclear factor-x03BA;B/receptor activator of the NF-x03BA;B ligand/osteoprotegerin system the process of bone resorption is initiated and subsequent formation is tightly coupled. Mediators such as prostaglandins, interleukins, chemokines, leukotrienes, growth factors, wnt signalling and bone morphogenetic proteins are involved in the regulation of bone remodeling. We discuss here cells and mediators involved in the cellular and molecular machanisms of bone resorption and bone formation.
Collapse
|
38
|
Weaver JR, Nadler JL, Taylor-Fishwick DA. Interleukin-12 (IL-12)/STAT4 Axis Is an Important Element for β-Cell Dysfunction Induced by Inflammatory Cytokines. PLoS One 2015; 10:e0142735. [PMID: 26555476 PMCID: PMC4640700 DOI: 10.1371/journal.pone.0142735] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2015] [Accepted: 10/26/2015] [Indexed: 12/14/2022] Open
Abstract
Pathology driving β-cell loss in diabetes is poorly defined. Chronic subclinical inflammation is associated with β-cell dysfunction. Acute in vitro exposure of islets and β-cells to an inflammatory cytokine cocktail (IL-1β/TNF-α/IFN-γ) results in loss of cell function and viability. The contribution of each cytokine alone or in combination has been evaluated in homogeneous mouse β-cell lines and primary mouse islets. Cytokine cooperation is required for β-cell apoptosis with the most potent combinations including IL-1β. Single cytokine exposure did not induce β-cell apoptosis. Expression of endogenous interleukin-12 in β-cells correlated with inflammatory cytokine combinations that induced β-cell apoptosis. Uncoupling of the IL-12 axis by a block of IL-12 production, inhibition of IL-12 receptor/ligand interaction or disruption of IL-12 receptor signaling conferred protection to β-cells from apoptosis induced by inflammatory cytokine stimulation. Signaling through STAT4 is indicated since disruption of IL-12 concomitantly reduced inflammatory cytokine stimulation of endogenous IFN-γ expression. Primary mouse islets isolated from mice deficient in STAT4 show resistance to inflammatory-cytokine-induced cell death when compared to islets isolated from wild type mice. Collectively, the data identify IL-12 as an important mediator of inflammation induced β-cell apoptosis. Modulation of IL-12/STAT4 signaling may be a valuable therapeutic strategy to preserve islet/β-cell viability in established diabetes.
Collapse
Affiliation(s)
- Jessica R. Weaver
- Department of Microbiology and Molecular Cell Biology, Eastern Virginia Medical School, Norfolk, Virginia, United States of America
| | - Jerry L. Nadler
- Department of Internal Medicine, Eastern Virginia Medical School, Norfolk, Virginia, United States of America
- Strelitz Diabetes Center, Eastern Virginia Medical School, Norfolk, Virginia, United States of America
| | - David A. Taylor-Fishwick
- Department of Microbiology and Molecular Cell Biology, Eastern Virginia Medical School, Norfolk, Virginia, United States of America
- Department of Internal Medicine, Eastern Virginia Medical School, Norfolk, Virginia, United States of America
- Strelitz Diabetes Center, Eastern Virginia Medical School, Norfolk, Virginia, United States of America
- * E-mail:
| |
Collapse
|
39
|
Thao NP, Luyen BTT, Koo JE, Kim S, Koh YS, Thanh NV, Cuong NX, Kiem PV, Minh CV, Kim YH. In vitro anti-inflammatory components isolated from the carnivorous plant Nepenthes mirabilis (Lour.) Rafarin. Pharm Biol 2015; 54:588-94. [PMID: 26186458 DOI: 10.3109/13880209.2015.1067234] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
CONTEXT Nepenthes mirabilis (Lour.) Rafarin (Nepenthaceae) is a carnivorous plant used as a folk medicine in the treatment of jaundice, hepatitis, gastric ulcers, ureteral stones, diarrhea, diabetes, and high blood pressure. Neither the phytochemical content nor biological activities of N. mirabilis have been reported. OBJECTIVE The anti-inflammatory activity from the N. mirabilis methanolic extract led to the isolation of compounds (1-26). MATERIALS AND METHODS Chromatographic methods were used to isolate compounds from the methanol extract of N. mirabilis branches and leaves. The anti-inflammatory activity of these isolated compounds was investigated in lipopolysaccharide (LPS)-stimulated bone marrow-derived dendritic cells (BMDCs) using ELISA. Primary BMDCs were used to examine the production of pro-inflammatory cytokines (IL-12 p40, IL-6, and TNF-α, at concentrations of 0.1, 0.2, and 1.0 μM) as compared with a positive control, SB203580 (1.0 μM). MTT assays showed that isolated compounds (1-26) did not exhibit significant cytotoxicity at concentrations up to 20.0 μM. RESULTS Compound 9 showed potent inhibition of IL-12 p40, IL-6, and TNF-α production (IC50 = 0.17 ± 0.02, 0.46 ± 0.01, and 8.28 ± 0.21 μM, respectively). Compound 4 showed potent inhibition of IL-12 p40 and IL-6 production (IC50 = 1.17 ± 0.01 and 2.15 ± 0.04 μM). In addition, IL-12 p40 inhibition by naphthalene derivatives (1-7, 9, and 10), phenolic compounds (11-15), lupeone (18), and flavonoids (22, 25, and 26) was more potent than with the positive control. The isolated compounds exhibited little and/or no inhibitory effects on TNF-α production in LPS-stimulated BMDCs. DISCUSSION AND CONCLUSION Taken together, these data suggest that the isolated components have significant inhibitory effects on pro-inflammatory cytokine production and warrant further study concerning their potential medicinal use.
Collapse
Affiliation(s)
- Nguyen Phuong Thao
- a College of Pharmacy, Chungnam National University , Daejeon , Republic of Korea
- b Institute of Marine Biochemistry (IMBC), Vietnam Academy of Science and Technology (VAST), Cau Giay , Hanoi , Vietnam , and
| | - Bui Thi Thuy Luyen
- a College of Pharmacy, Chungnam National University , Daejeon , Republic of Korea
| | - Jung Eun Koo
- c School of Medicine, Brain Korea 21 PLUS Program, Institute of Medical Science, Jeju National University , Jeju , Republic of Korea
| | - Sohyun Kim
- c School of Medicine, Brain Korea 21 PLUS Program, Institute of Medical Science, Jeju National University , Jeju , Republic of Korea
| | - Young Sang Koh
- c School of Medicine, Brain Korea 21 PLUS Program, Institute of Medical Science, Jeju National University , Jeju , Republic of Korea
| | - Nguyen Van Thanh
- b Institute of Marine Biochemistry (IMBC), Vietnam Academy of Science and Technology (VAST), Cau Giay , Hanoi , Vietnam , and
| | - Nguyen Xuan Cuong
- b Institute of Marine Biochemistry (IMBC), Vietnam Academy of Science and Technology (VAST), Cau Giay , Hanoi , Vietnam , and
| | - Phan Van Kiem
- b Institute of Marine Biochemistry (IMBC), Vietnam Academy of Science and Technology (VAST), Cau Giay , Hanoi , Vietnam , and
| | - Chau Van Minh
- b Institute of Marine Biochemistry (IMBC), Vietnam Academy of Science and Technology (VAST), Cau Giay , Hanoi , Vietnam , and
| | - Young Ho Kim
- a College of Pharmacy, Chungnam National University , Daejeon , Republic of Korea
| |
Collapse
|
40
|
Campo GM, Avenoso A, D'Ascola A, Scuruchi M, Calatroni A, Campo S. Beta-arrestin-2 negatively modulates inflammation response in mouse chondrocytes induced by 4-mer hyaluronan oligosaccharide. Mol Cell Biochem 2015; 399:201-8. [PMID: 25318610 DOI: 10.1007/s11010-014-2246-5] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2014] [Accepted: 10/09/2014] [Indexed: 02/06/2023]
Abstract
Beta-arrestin-2 is an adaptor protein that terminates G protein activation and seems to be involved in the modulation of the inflammatory response. Small hyaluronan (HA) fragments, such as 4-mer HA oligosaccharides, are known to interact with the toll-like receptor-4 (TLR-4) with consequent activation of the nuclear factor kappaB (NF-kB) that in turn stimulates the inflammation response. NF-kB activation is mediated by different pathways, in particular by the transforming growth factor-activated kinase-1 (TAK-1). Conversely, increased levels of protein kinase A (PKA), induced by cyclic adenosine monophosphate (cAMP), seem to inhibit NF-kB activation. We studied the involvement and role of beta-arrestin-2 in mouse chondrocytes stimulated with 4-mer HA fragments. The exposure of chondrocytes to 4-mer HA produced a significant up-regulation in TLR-4, cAMP, beta-arrestin-2, TAK-1, protein 38 mitogen-activated protein kinase (p38MAPK), and PKA, both in terms of mRNA expression and of the related protein levels. NF-kB was significantly activated, thereby producing the transcription of pro-inflammatory mediators, including tumor necrosis factor alpha, interleukin-6, and interleukin-17. The treatment of 4-mer HA-stimulated chondrocytes with antibodies against beta-arrestin-2 and/or a specific PKA inhibitor, significantly increased the inflammatory response, while the treatment with a specific p38MAPK inhibitor significantly reduced the inflammatory response. Interestingly, the anti-inflammatory action exerted by beta-arrestin-2 appeared to be mediated in part through the direct inhibition of p38MAPK, preventing NF-kB activation, and in part through cAMP and PKA activation primed by G protein signaling, which exerted an inhibitory effect on NF-kB. Taken together, these results could be useful for future anti-inflammatory strategies.
Collapse
Affiliation(s)
- Giuseppe M Campo
- Department of Biomedical Sciences and Morphological and Functional Images, Section of Medical Biotechnologies and Preventive Medicine, School of Medicine, University of Messina, Policlinico Universitario, Torre Biologica, 5° piano, Via C. Valeria, 98125, Messina, Italy,
| | | | | | | | | | | |
Collapse
|
41
|
Abstract
Over the past 30 years, transient receptor potential (TRP) channels have evolved from a somewhat obscure observation on how fruit flies detect light to become the center of drug discovery efforts, triggering a heated debate about their potential as targets for therapeutic applications in humans. In this review, we describe our current understanding of the diverse mechanism of action of TRP channels in the itch pathway from the skin to the brain with focus on the peripheral detection of stimuli that elicit the desire to scratch and spinal itch processing and sensitization. We predict that the compelling basic research findings on TRP channels and pruritus will be translated into the development of novel, clinically useful itch medications.
Collapse
Affiliation(s)
- Balázs I Tóth
- DE-MTA "Lendület" Cellular Physiology Research Group, Department of Physiology, University of Debrecen, Debrecen, 4032, Hungary
| | | | | |
Collapse
|
42
|
Beiter T, Hoene M, Prenzler F, Mooren FC, Steinacker JM, Weigert C, Nieß AM, Munz B. Exercise, skeletal muscle and inflammation: ARE-binding proteins as key regulators in inflammatory and adaptive networks. Exerc Immunol Rev 2015; 21:42-57. [PMID: 25826388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The role of inflammation in skeletal muscle adaptation to exercise is complex and has hardly been elucidated so far. While the acute inflammatory response to exercise seems to promote skeletal muscle training adaptation and regeneration, persistent, low-grade inflammation, as seen in a multitude of chronic diseases, is obviously detrimental. The regulation of cytokine production in skeletal muscle cells has been relatively well studied, yet little is known about the compensatory and anti-inflammatory mechanisms that resolve inflammation and restore tissue homeostasis. One important strategy to ensure sequential, timely and controlled resolution of inflammation relies on the regulated stability of mRNAs encoding pro-inflammatory mediators. Many key transcripts in early immune responses are characterized by the presence of AU-rich elements (AREs) in the 3'-untranslated regions of their mRNAs, allowing efficient fine-tuning of gene expression patterns at the post-transcriptional level. AREs exert their function by recruiting particular RNA-binding proteins, resulting, in most cases, in de-stabilization of the target transcripts. The best-characterized ARE-binding proteins are HuR, CUGBP1, KSRP, AUF1, and the three ZFP36 proteins, especially TTP/ZFP36. Here, we give a general introduction into the role of inflammation in the adaptation of skeletal muscle to exercise. Subsequently, we focus on potential roles of ARE-binding proteins in skeletal muscle tissue in general and specifically exercise-induced skeletal muscle remodeling. Finally, we present novel data suggesting a specific function of TTP/ZFP36 in exercise-induced skeletal muscle plasticity.
Collapse
Affiliation(s)
- Thomas Beiter
- Department of Sports Medicine, Medical Clinic, Eberhard-Karls-University Tübingen, Tübingen, Germany
| | - Miriam Hoene
- Division of Pathobiochemistry and Clinical Chemistry, Department of Internal Medicine IV, Eberhard-Karls-University Tübingen, Tübingen, Germany
| | - Frauke Prenzler
- Department of Sports Medicine, Medical Clinic, Eberhard-Karls-University Tübingen, Tübingen, Germany
| | - Frank C Mooren
- Department of Sports Medicine, Institute of Sports Sciences, Justus-Liebig University Gießen, Gießen, Germany
| | - Jürgen M Steinacker
- Division of Sports and Rehabilitation Medicine, Ulm University Medical Center, Ulm, Germany
| | - Cora Weigert
- Division of Pathobiochemistry and Clinical Chemistry, Department of Internal Medicine IV, Eberhard-Karls-University Tübingen, Tübingen, Germany
- German Center for Diabetes Research (DZD)
| | - Andreas M Nieß
- Department of Sports Medicine, Medical Clinic, Eberhard-Karls-University Tübingen, Tübingen, Germany
| | - Barbara Munz
- Department of Sports Medicine, Medical Clinic, Eberhard-Karls-University Tübingen, Tübingen, Germany
| |
Collapse
|
43
|
Ringseis R, Eder K, Mooren FC, Krüger K. Metabolic signals and innate immune activation in obesity and exercise. Exerc Immunol Rev 2015; 21:58-68. [PMID: 25825956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The combination of a sedentary lifestyle and excess energy intake has led to an increased prevalence of obesity which constitutes a major risk factor for several co-morbidities including type 2 diabetes and cardiovascular diseases. Intensive research during the last two decades has revealed that a characteristic feature of obesity linking it to insulin resistance is the presence of chronic low-grade inflammation being indicative of activation of the innate immune system. Recent evidence suggests that activation of the innate immune system in the course of obesity is mediated by metabolic signals, such as free fatty acids (FFAs), being elevated in many obese subjects, through activation of pattern recognition receptors thereby leading to stimulation of critical inflammatory signaling cascades, like IκBα kinase/nuclear factor-κB (IKK/NF- κB), endoplasmic reticulum (ER) stress-induced unfolded protein response (UPR) and NOD-like receptor P3 (NLRP3) inflammasome pathway, that interfere with insulin signaling. Exercise is one of the main prescribed interventions in obesity management improving insulin sensitivity and reducing obesity- induced chronic inflammation. This review summarizes current knowledge of the cellular recognition mechanisms for FFAs, the inflammatory signaling pathways triggered by excess FFAs in obesity and the counteractive effects of both acute and chronic exercise on obesity-induced activation of inflammatory signaling pathways. A deeper understanding of the effects of exercise on inflammatory signaling pathways in obesity is useful to optimize preventive and therapeutic strategies to combat the increasing incidence of obesity and its comorbidities.
Collapse
Affiliation(s)
- Robert Ringseis
- Institute of Animal Nutrition and Nutrition Physiology, Justus-Liebig-University Giessen, Heinrich-Buff-Ring 26-32, 35392 Giessen, Germany
| | - Klaus Eder
- Institute of Animal Nutrition and Nutrition Physiology, Justus-Liebig-University Giessen, Heinrich-Buff-Ring 26-32, 35392 Giessen, Germany
| | - Frank C Mooren
- Department of Sports Medicine, Justus-Liebig-University Giessen, Kugelberg 62, 35394 Giessen, Germany
| | - Karsten Krüger
- Department of Sports Medicine, Justus-Liebig-University Giessen, Kugelberg 62, 35394 Giessen, Germany
| |
Collapse
|
44
|
Shcheglovitova ON, Skliankina NN, Boldyreva NV, Babaiants AA, Frolova IS, Kapkaeva MP. [Human interferon modulates infected vascular endothelium function]. ACTA ACUST UNITED AC 2014:31-5. [PMID: 25306593 DOI: 10.15690/vramn.v69i3-4.992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
BACKGROUND To study impact of interferon (IFN) alpha, beta and gamma on the Herpes simplex virus type 1 (HSV-1) infected endothelial cells functional activity related with participation in the inflammation development. MATERIALS AND METHODS In the work endothelial cells isolated from umbilical vein were used. Intact and infected cultures were treated by interferon and in the dynamics of cultivation tested mediators in the cultural medium. RESULTS All investigated interferons activated the production of IL-6. IFN alpha, beta activated the production of IL-8, while IFN gamma inhibited her. IFN alpha and gamma increased synthesis of nitrogen oxides and reduced the synthesis of endothelin-1, while IFN beta activated the production of endothelin-1. CONCLUSION Infection of endothelial cells isolated from umbilical vein with HSV-1 does not alter the ability of interferon in modulating of proinflammatory cytokines, nitric oxide and endothelin-1 synthesis. It is obvious in the body modulation manifestations of innate immunity under the influence of exogenous interferon is implemented both intact and infected with HSV-1-vascular endothelium and nature modulation is determined by the type of IFN.
Collapse
|
45
|
Rossi S, Motta C, Musella A, Centonze D. The interplay between inflammatory cytokines and the endocannabinoid system in the regulation of synaptic transmission. Neuropharmacology 2014; 96:105-12. [PMID: 25268960 DOI: 10.1016/j.neuropharm.2014.09.022] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2014] [Revised: 09/15/2014] [Accepted: 09/16/2014] [Indexed: 12/14/2022]
Abstract
Excessive glutamate-mediated synaptic transmission and secondary excitotoxicity have been proposed as key determinants of neurodegeneration in many neurological diseases. Soluble mediators of inflammation have recently gained attention owing to their ability to enhance glutamate transmission and affect synaptic sensitivity to neurotransmitters. In the complex crosstalk between soluble immunoactive molecules and synapses, the endocannabinoid system (ECS) plays a central role, exerting an indirect neuroprotective action by inhibiting cytokine-dependent synaptic alterations, and a direct neuroprotective effect by limiting glutamate transmission and excitotoxic damage. On the other hand, the endocannabinoid (eCB)-mediated control of synaptic transmission is altered by proinflammatory cytokines with consequent effects in central nervous system (CNS) disorders. In this review, we summarize the interactions, at the pre- and postsynaptic level, between major inflammatory cytokines and the ECS. In addition, the behavioral and clinical consequences of the modulation of synaptic transmission during neuroinflammation are discussed. This article is part of a Special Issue entitled 'Neuroimmunology and Synaptic Function'.
Collapse
Affiliation(s)
- Silvia Rossi
- Clinica Neurologica, Dipartimento di Medicina dei Sistemi, Università Tor Vergata, 00133 Rome, Italy; Fondazione Santa Lucia/Centro Europeo per la Ricerca sul Cervello (CERC), 00143 Rome, Italy
| | - Caterina Motta
- Clinica Neurologica, Dipartimento di Medicina dei Sistemi, Università Tor Vergata, 00133 Rome, Italy; Fondazione Santa Lucia/Centro Europeo per la Ricerca sul Cervello (CERC), 00143 Rome, Italy
| | - Alessandra Musella
- Clinica Neurologica, Dipartimento di Medicina dei Sistemi, Università Tor Vergata, 00133 Rome, Italy; Fondazione Santa Lucia/Centro Europeo per la Ricerca sul Cervello (CERC), 00143 Rome, Italy
| | - Diego Centonze
- Clinica Neurologica, Dipartimento di Medicina dei Sistemi, Università Tor Vergata, 00133 Rome, Italy; Fondazione Santa Lucia/Centro Europeo per la Ricerca sul Cervello (CERC), 00143 Rome, Italy.
| |
Collapse
|
46
|
Abstract
Skin microdialysis is an established method for in vivo sample collection from the extracellular fluid space. This method has been extensively used in studies of inflammatory reactions in the skin of animals and humans. Skin microdialysis consists of the implantation of semi-permeable probes into the upper dermis, perfusion with a physiological buffer, and the recovery of the substances that diffused from the skin into the perfusion fluid. Microdialysis allows the simultaneous assessment of the temporal variations of inflammatory mediator release in the skin as well as the monitoring of vascular and sensory functions. By the aid of this technique, potential associations can be found between functional changes and a variety of substances and mediators released at the site of interest. This allows further insights into the possible mechanisms underlying physiological and pathophysiological events in the skin, including cutaneous inflammation. This review provides a comprehensive but not exhaustive review of the use of microdialysis in studies of experimental and clinical inflammatory reactions in the skin in animals and humans.
Collapse
Affiliation(s)
- Kamelia J Hersini
- Department of Health Science and Technology,, Aalborg University, DK-9220 Aalborg, Denmark
| | | | | | | |
Collapse
|
47
|
Uchoa ET, Aguilera G, Herman JP, Fiedler JL, Deak T, Cordeiro de Sousa MB. Novel aspects of glucocorticoid actions. J Neuroendocrinol 2014; 26:557-72. [PMID: 24724595 PMCID: PMC4161987 DOI: 10.1111/jne.12157] [Citation(s) in RCA: 91] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2014] [Revised: 04/06/2014] [Accepted: 04/08/2014] [Indexed: 12/20/2022]
Abstract
Normal hypothalamic-pituitary-adrenal (HPA) axis activity leading to the rhythmic and episodic release of adrenal glucocorticoids (GCs) is essential for body homeostasis and survival during stress. Acting through specific intracellular receptors in the brain and periphery, GCs regulate behaviour, as well as metabolic, cardiovascular, immune and neuroendocrine activities. By contrast to chronic elevated levels, circadian and acute stress-induced increases in GCs are necessary for hippocampal neuronal survival and memory acquisition and consolidation, as a result of the inhibition of apoptosis, the facilitation of glutamatergic neurotransmission and the formation of excitatory synapses, and the induction of immediate early genes and dendritic spine formation. In addition to metabolic actions leading to increased energy availability, GCs have profound effects on feeding behaviour, mainly via the modulation of orexigenic and anorixegenic neuropeptides. Evidence is also emerging that, in addition to the recognised immune suppressive actions of GCs by counteracting adrenergic pro-inflammatory actions, circadian elevations have priming effects in the immune system, potentiating acute defensive responses. In addition, negative-feedback by GCs involves multiple mechanisms leading to limited HPA axis activation and prevention of the deleterious effects of excessive GC production. Adequate GC secretion to meet body demands is tightly regulated by a complex neural circuitry controlling hypothalamic corticotrophin-releasing hormone (CRH) and vasopressin secretion, which are the main regulators of pituitary adrenocorticotrophic hormone (ACTH). Rapid feedback mechanisms, likely involving nongenomic actions of GCs, mediate the immediate inhibition of hypothalamic CRH and ACTH secretion, whereas intermediate and delayed mechanisms mediated by genomic actions involve the modulation of limbic circuitry and peripheral metabolic messengers. Consistent with their key adaptive roles, HPA axis components are evolutionarily conserved, being present in the earliest vertebrates. An understanding of these basic mechanisms may lead to novel approaches for the development of diagnostic and therapeutic tools for disorders related to stress and alterations of GC secretion.
Collapse
Affiliation(s)
- Ernane Torres Uchoa
- Department of Physiology, School of Medicine of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto, SP, Brazil
| | - Greti Aguilera
- Section on Endocrine Physiology, National Institute of Child Health and Human Development, Bethesda, MD, USA
| | - James P. Herman
- Department of Psychiatry and Behavioural Neuroscience, University of Cincinnati, Metabolic Diseases Institute, Cincinnati, OH, USA
| | - Jenny L. Fiedler
- Department of Biochemistry and Molecular Biology, Faculty of Chemical and Pharmaceutical Sciences, Universidad de Chile, Santiago, Chile
| | - Terrence Deak
- Department of Psychology, Binghamton University, Binghamton, NY, USA
| | | |
Collapse
|
48
|
Karpuzoglu E, Schmiedt CW, Pardo J, Hansen M, Guo TL, Holladay SD, Gogal RM. Serine protease inhibition attenuates rIL-12-induced GZMA activity and proinflammatory events by modulating the Th2 profile from estrogen-treated mice. Endocrinology 2014; 155:2909-23. [PMID: 24840346 PMCID: PMC4097994 DOI: 10.1210/en.2014-1045] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Estrogen has potent immunomodulatory effects on proinflammatory responses, which can be mediated by serine proteases. We now demonstrate that estrogen increased the extracellular expression and IL-12-induced activity of a critical member of serine protease family Granzyme A, which has been shown to possess a novel inflammatory persona. The inhibition of serine protease activity with inhibitor 4-(2-aminoethyl) benzenesulfonyl fluoride hydrochloride significantly diminished enhanced production of proinflammatory interferon-γ, IL-1β, IL-1α, and Granzyme A activity even in the presence of a Th1-inducing cytokine, IL-12 from splenocytes from in vivo estrogen-treated mice. Inhibition of serine protease activity selectively promoted secretion of Th2-specific IL-4, nuclear phosphorylated STAT6A, signal transducer and activator of transcription (STAT)6A translocation, and STAT6A DNA binding in IL-12-stimulated splenocytes from estrogen-treated mice. Inhibition with 4-(2-aminoethyl) benzenesulfonyl fluoride hydrochloride reversed the down-regulation of Th2 transcription factors, GATA3 and c-Maf in splenocytes from estrogen-exposed mice. Although serine protease inactivation enhanced the expression of Th2-polarizing factors, it did not reverse estrogen-modulated decrease of phosphorylated STAT5, a key factor in Th2 development. Collectively, data suggest that serine protease inactivity augments the skew toward a Th2-like profile while down-regulating IL-12-induced proinflammatory Th1 biomolecules upon in vivo estrogen exposure, which implies serine proteases as potential regulators of inflammation. Thus, these studies may provide a potential mechanism underlying the immunomodulatory effect of estrogen and insight into new therapeutic strategies for proinflammatory and female-predominant autoimmune diseases.
Collapse
Affiliation(s)
- Ebru Karpuzoglu
- Department of Veterinary Biosciences and Diagnostic Imaging (E.K., T.L.G., S.D.H., R.M.G.), and Department of Small Animal Medicine and Surgery (C.W.S., M.H.), College of Veterinary Medicine, University of Georgia, Athens, Georgia 30602; and Immune Effector Cells Group (J.P.), Aragon Health Research Institute (IIS Aragon), Biomedical Research Centre of Aragon (CIBA), Nanoscience Institute of Aragon (INA), Aragon I+D Foundation (ARAID), University of Zaragoza, 50009 Zaragoza, Spain
| | | | | | | | | | | | | |
Collapse
|
49
|
Abstract
Children with inflammatory diseases usually display abnormal growth patterns as well as delayed puberty. This is a result of several factors related to the disease itself, such as malnutrition, hypercortisolism, and elevated levels of pro-inflammatory cytokines. These factors in combination with glucocorticoid treatment contribute to growth retardation during chronic inflammation by systemically affecting the major regulator of growth, the GH/IGF1 axis. However, recent studies have also shown evidence of a direct effect of these factors at the growth plate level. In conditions of chronic inflammation, pro-inflammatory cytokines are upregulated and released into the circulation. The most abundant of these, tumor necrosis factor α, interleukin 1β (IL1β), and IL6, are all known to directly act on growth plate cartilage to induce apoptosis and thereby suppress bone growth. Both clinical and experimental studies have shown that growth retardation can partly be rescued when these cytokines are blocked. Therefore, therapy modulating the local actions of these cytokines may be effective for preventing growth failure in patients with chronic inflammatory disorders. In this review, we report the current knowledge of inflammatory cytokines and their role in regulating bone growth.
Collapse
Affiliation(s)
- Bettina Sederquist
- Pediatric Endocrinology Unit Q2:08Department of Women's and Children's Health, Karolinska University Hospital, SE-171 76 Stockholm, SwedenDevelopmental and Stem Cell BiologyThe Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada
| | - Paola Fernandez-Vojvodich
- Pediatric Endocrinology Unit Q2:08Department of Women's and Children's Health, Karolinska University Hospital, SE-171 76 Stockholm, SwedenDevelopmental and Stem Cell BiologyThe Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada
| | - Farasat Zaman
- Pediatric Endocrinology Unit Q2:08Department of Women's and Children's Health, Karolinska University Hospital, SE-171 76 Stockholm, SwedenDevelopmental and Stem Cell BiologyThe Hospital for Sick Children, University of Toronto, Toronto, Ontario, CanadaPediatric Endocrinology Unit Q2:08Department of Women's and Children's Health, Karolinska University Hospital, SE-171 76 Stockholm, SwedenDevelopmental and Stem Cell BiologyThe Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada
| | - Lars Sävendahl
- Pediatric Endocrinology Unit Q2:08Department of Women's and Children's Health, Karolinska University Hospital, SE-171 76 Stockholm, SwedenDevelopmental and Stem Cell BiologyThe Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada
| |
Collapse
|
50
|
Anders HJ, Schaefer L. Beyond tissue injury-damage-associated molecular patterns, toll-like receptors, and inflammasomes also drive regeneration and fibrosis. J Am Soc Nephrol 2014; 25:1387-400. [PMID: 24762401 PMCID: PMC4073442 DOI: 10.1681/asn.2014010117] [Citation(s) in RCA: 212] [Impact Index Per Article: 21.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Tissue injury initiates an inflammatory response through the actions of immunostimulatory molecules referred to as damage-associated molecular patterns (DAMPs). DAMPs encompass a group of heterogenous molecules, including intracellular molecules released during cell necrosis and molecules involved in extracellular matrix remodeling such as hyaluronan, biglycan, and fibronectin. Kidney-specific DAMPs include crystals and uromodulin released by renal tubular damage. DAMPs trigger innate immunity by activating Toll-like receptors, purinergic receptors, or the NLRP3 inflammasome. However, recent evidence revealed that DAMPs also trigger re-epithelialization upon kidney injury and contribute to epithelial-mesenchymal transition and, potentially, to myofibroblast differentiation and proliferation. Thus, these discoveries suggest that DAMPs drive not only immune injury but also kidney regeneration and renal scarring. Here, we review the data from these studies and discuss the increasingly complex connection between DAMPs and kidney diseases.
Collapse
Affiliation(s)
- Hans-Joachim Anders
- Nephrological Center, Medizinische Klinik und Poliklinik IV, University of Munich, Munich, Germany; and
| | - Liliana Schaefer
- Pharmazentrum Frankfurt, Institute of General Pharmacology and Toxicology, Goethe-University of Frankfurt/Main, Frankfurt/Main, Germany
| |
Collapse
|