Abstract:
:Osteoarthritis (OA) belongs to a group of degenerative diseases. Synovial inflammation, cartilage abrasion, and subchondral sclerosis are characteristics of OA. Researchers do not fully understand the exact etiology of OA. However, matrix metalloproteinases (MMPs), which are responsible for cartilage matrix degradation, play a pivotal role in the progression of OA. Amphiregulin (AREG) binds to the EGF receptor (EGFR) and activates downstream proteins. AREG is involved in a variety of pathological processes, such as the development of tumors, inflammatory diseases, and rheumatoid arthritis. However, the relationship between AREG and MMP-13 in OA synovial fibroblasts (SFs) remains unclear. We investigated the signaling pathway involved in AREG-induced MMP-13 production in SFs. AREG caused MMP-13 production in a concentration- and time-dependent manner. The results of using pharmacological inhibitors and EGFR siRNA to block EGFR revealed that the EGFR receptor was involved in the AREG-mediated upregulation of MMP-13. AREG-mediated MMP-13 production was attenuated by PI3K and Akt inhibitors. The stimulation of cells by using AREG activated p65 phosphorylation and p65 translocation from the cytosol to the nucleus. Our results provide evidence that AREG acts through the EGFR and activates PI3K, Akt, and finally NF-kappaB on the MMP-13 promoter, thus contributing to cartilage destruction during osteoarthritis.
journal_name
Mediators Inflammjournal_title
Mediators of inflammationauthors
Chen YT,Hou CH,Hou SM,Liu JFdoi
10.1155/2014/759028subject
Has Abstractpub_date
2014-01-01 00:00:00pages
759028eissn
0962-9351issn
1466-1861journal_volume
2014pub_type
杂志文章abstract::Vascular adhesion protein-1 (VAP-1) is an ectoenzyme that functions as a copper-containing amine oxidase and is involved in leukocyte adhesion at sites of inflammation. Inhibition of VAP-1 oxidative deamination has become an attractive target for anti-inflammatory therapy with demonstrated efficacy in rodent models of...
journal_title:Mediators of inflammation
pub_type: 杂志文章
doi:10.1155/2020/3270513
更新日期:2020-01-20 00:00:00
abstract::The present study was carried out to investigate the effects and mechanisms of polydatin (PD) in septic mice. The model of cecal ligation and puncture (CLP-)induced sepsis was employed. Pretreatment of mice with PD (15, 45, and 100 mg/kg) dose-dependently reduced sepsis-induced mortality and lung injury, as indicated ...
journal_title:Mediators of inflammation
pub_type: 杂志文章
doi:10.1155/2013/354087
更新日期:2013-01-01 00:00:00
abstract::In the central nervous system (CNS), mastocytes and glial cells (microglia, astrocytes and oligodendrocytes) function as sensors of neuroinflammatory conditions, responding to stress triggers or becoming sensitized to subsequent proinflammatory challenges. The corticotropin-releasing hormone and glucocorticoids are cr...
journal_title:Mediators of inflammation
pub_type: 杂志文章,评审
doi:10.1155/2013/893521
更新日期:2013-01-01 00:00:00
abstract::The increased morbidity, mortality, and ineffective treatment associated with the pathogenesis of chronic inflammatory diseases such as asthma and chronic obstructive pulmonary disease (COPD) have generated much research interest. The key role is played by phospholipases from the A2 superfamily: enzymes which are invo...
journal_title:Mediators of inflammation
pub_type: 杂志文章,评审
doi:10.1155/2013/793505
更新日期:2013-01-01 00:00:00
abstract::Interleukin-33 (IL-33) is associated with the development of Th2 responses. This study examined the potential role of IL-33 in the pathogenic process of chronic hepatitis C (CHC) in Chinese patients. The levels of serum IL-33 and sST2 in 154 patients with CHC, 24 with spontaneously resolved HCV (SR-HCV) infection and ...
journal_title:Mediators of inflammation
pub_type: 杂志文章
doi:10.1155/2012/819636
更新日期:2012-01-01 00:00:00
abstract:BACKGROUND:Coronary atherosclerotic heart disease (CHD) is one of the major concerns in type 2 diabetes (T2D). The systemic chronic inflammation has been postulated to bridge the increased risk of cardiovascular disease and T2D. We formulated that increased peripheral proinflammatory T helper subsets contributed to the...
journal_title:Mediators of inflammation
pub_type: 杂志文章
doi:10.1155/2014/596967
更新日期:2014-01-01 00:00:00
abstract::Behçet's disease (BD) is an autoinflammatory disease that can lead to life- and sight-threating complications. Dendritic cells (DCs) are the most potent antigen-presenting cells that can regulate multiple inflammatory pathways. The objective of this study was to investigate the association of the DC stimulatory molecu...
journal_title:Mediators of inflammation
pub_type: 杂志文章
doi:10.1155/2019/5761392
更新日期:2019-09-09 00:00:00
abstract::Innate lymphoid cells (ILCs) are a group of hematopoietic cells devoid of antigen receptors that have important functions in lymphoid organogenesis, in the defense against extracellular pathogens, and in the maintenance of the epithelial barrier. Three distinct groups of ILCs have been identified on the basis of pheno...
journal_title:Mediators of inflammation
pub_type: 杂志文章,评审
doi:10.1155/2014/235460
更新日期:2014-01-01 00:00:00
abstract::Inflammation is an important component of diabetic retinal damage. We previously reported that a novel β-adrenergic receptor agonist, Compound 49b, reduced Toll-like receptor 4 (TLR4) signaling in retinal endothelial cells (REC) grown in high glucose. Others reported that TLR4 activates high-mobility group box 1 (HMGB...
journal_title:Mediators of inflammation
pub_type: 杂志文章
doi:10.1155/2017/2860956
更新日期:2017-01-01 00:00:00
abstract::The aim of the present study was to compare serum levels of soluble forms of interleukin-2 receptor, CD4 and CD8, released by lymphocytes during activation ofthe immune system, in patients with histologically verified chronic active hepatitis associated to hepatitis C virus infection, with those in healthy subjects. S...
journal_title:Mediators of inflammation
pub_type: 杂志文章
doi:10.1155/S0962935194000256
更新日期:1994-01-01 00:00:00
abstract::Chemokines (CKs) and chemokine receptors (CKR) promote leukocyte recruitment into cardiac tissue infected by the Trypanosoma cruzi. This study investigated the long-term treatment with subantimicrobial doses of doxycycline (Dox) in association, or not, with benznidazole (Bz) on the expression of CK and CKR in cardiac ...
journal_title:Mediators of inflammation
pub_type: 杂志文章
doi:10.1155/2016/3694714
更新日期:2016-01-01 00:00:00
abstract::Resistin has been shown to cause insulin resistance and to impair glucose tolerance in rodents, but in humans its physiological role still remains elusive. The aim of this study was to examine whether resistin mRNA expression in human peripheral mononuclear cells (PBMCs) and its corresponding plasma levels are altered...
journal_title:Mediators of inflammation
pub_type: 杂志文章
doi:10.1155/2008/892864
更新日期:2008-01-01 00:00:00
abstract::Infection with dengue virus (DENV) causes an increase in proinflammatory responses, such as nitric oxide (NO) generation and TNF-α expression; however, the molecular mechanism underlying this inflammatory activation remains undefined, although the activation of the transcription factor NF-κB is generally involved. In ...
journal_title:Mediators of inflammation
pub_type: 杂志文章
doi:10.1155/2015/274025
更新日期:2015-01-01 00:00:00
abstract::Myeloproliferative neoplasms (MPNs) are a heterogeneous group of clonal diseases characterized by the excessive and chronic production of mature cells from one or several of the myeloid lineages. Recent advances in the biology of MPNs have greatly facilitated their molecular diagnosis since most patients present with ...
journal_title:Mediators of inflammation
pub_type: 杂志文章,评审
doi:10.1155/2015/145293
更新日期:2015-01-01 00:00:00
abstract::Plasma levels of endotoxin and various cytokines were assessed in 70 patients with gastrointestinal tract perforation. Sepsis developed in 29 of them, and eight of these (27.6%) had on admission endotoxin levels higher than 9.8 pg ml(-1). The clinical outcome correlated with the level of tumour necrosis factor alpha (...
journal_title:Mediators of inflammation
pub_type: 杂志文章
doi:10.1155/S0962935192000097
更新日期:1992-01-01 00:00:00
abstract::Antimicrobial peptides (AMPs) are usually small molecule peptides, which display broad-spectrum antimicrobial activity, high efficiency, and stability. For the multiple-antibiotic-resistant strains, AMPs play a significant role in the development of novel antibiotics because of their broad-spectrum antimicrobial activ...
journal_title:Mediators of inflammation
pub_type: 杂志文章,评审
doi:10.1155/2015/167572
更新日期:2015-01-01 00:00:00
abstract:AIM:To determine induced sputum cell counts and interleukin-8 (IL-8), tumor necrosis factor alpha (TNF-alpha) and leukotriene B4 (LTB4) levels as markers of neutrophilic inflammation in moderate persistent asthma, and to evaluate the response to inhaled steroid therapy. METHODS:Forty-five moderate asthmatic patients a...
journal_title:Mediators of inflammation
pub_type: 临床试验,杂志文章
doi:10.1080/09629350400003118
更新日期:2004-08-01 00:00:00
abstract::Heparanase activity is correlated with the metastatic potential of several cancer cells and is a key enzyme in the breakdown of tissue barriers. It is also involved in the regulation of growth factor and cytokine activity. However, little is known about the factors that induce heparanase in cancer cells. We investigat...
journal_title:Mediators of inflammation
pub_type: 杂志文章
doi:10.1080/09629350120093731
更新日期:2001-10-01 00:00:00
abstract:Background:Endothelial dysfunction and apoptosis resulting from oxidative stress can lead to the development of atherosclerosis. Our group has previously showed that CD137 signaling contributes to the progression of atherosclerosis and the vulnerability of plaques. The aim of this study is to investigate the effects of...
journal_title:Mediators of inflammation
pub_type: 杂志文章
doi:10.1155/2020/4321912
更新日期:2020-06-06 00:00:00
abstract::The etiopathogenesis of endometriosis still remains unknown. Recent data provide new valuable information concerning the role of oxidative stress in the pathophysiology of the disease. It has been proved that levels of different lipid peroxidation end products are increased in both peritoneal fluid (PF) and serum of e...
journal_title:Mediators of inflammation
pub_type: 杂志文章
doi:10.1155/2013/624540
更新日期:2013-01-01 00:00:00
abstract::Hydroxysafflor yellow A (HSYA) is an effective therapeutic agent for inflammatory diseases and autoimmune disorders; however, its regulatory effect on NLRP3 inflammasome activation in macrophages has not been investigated. In this study, we predicted the potential interaction between HSYA and xanthine oxidase (XO) via...
journal_title:Mediators of inflammation
pub_type: 杂志文章
doi:10.1155/2016/8172706
更新日期:2016-01-01 00:00:00
abstract:OBJECTIVE:Individuals with inflammation have a myriad of pregnancy aberrations including increasing their preterm birth risk. Toll-like receptors (TLRs) and receptor for advanced glycation end products (RAGE) and their ligands were all found to play a key role in inflammation. In the present study, we reviewed TLR and ...
journal_title:Mediators of inflammation
pub_type: 杂志文章,评审
doi:10.1155/2010/490406
更新日期:2010-01-01 00:00:00
abstract::Little is known about the cause and pathophysiology of middermal elastolysis (MDE). In this condition, variable inflammatory infiltrate may be present or not together with loss of elastic fibres in the middermis that spares both papillary and lower reticular dermis. MDE may be a consequence of abnormal extracellular m...
journal_title:Mediators of inflammation
pub_type: 杂志文章
doi:10.1155/2017/9524594
更新日期:2017-01-01 00:00:00
abstract::Leptin participates in the inflammatory responses in multiple cell types and animal models. Chronic cerebral hypoperfusion (CCH) induces inflammation in the central nervous system (CNS), which acts as one of the main reasons for CCH-induced white matter lesions (WMLs). But whether leptin participates in the pathogenes...
journal_title:Mediators of inflammation
pub_type: 杂志文章
doi:10.1155/2020/7974537
更新日期:2020-12-18 00:00:00
abstract::Invertebrates do not display the level of sophistication in immune reactivity characteristic of mammals and other 'higher' vertebrates. Their great number and diversity of forms, however, reflect their evolutionary success and hence they must have effective mechanisms of defence to deal with parasites and pathogens an...
journal_title:Mediators of inflammation
pub_type: 杂志文章
doi:10.1155/S0962935196000014
更新日期:1996-01-01 00:00:00
abstract::Little is known about Yu-Ping-Feng (YPF), a typical Chinese herbal decoction, for its antitumor efficacy in non-small-cell lung cancer (NSCLC). Here, we found that YPF significantly inhibited the growth of Lewis lung cancer, prolonged the survival of tumor-bearing mice, promoted NK cell tumor infiltration, increased t...
journal_title:Mediators of inflammation
pub_type: 杂志文章
doi:10.1155/2016/3541283
更新日期:2016-01-01 00:00:00
abstract::The effect of lipoprotein apheresis (Direct Adsorption of Lipids, DALI) (LA) on plasma levels of pentraxin 3 (PTX3), an inflammatory marker that reflects coronary plaque vulnerability, and expression of PTX3 mRNA was evaluated in patients with hyperLp(a)lipoproteinemia and angiographically defined atherosclerosis/coro...
journal_title:Mediators of inflammation
pub_type: 临床试验,杂志文章
doi:10.1155/2016/4739512
更新日期:2016-01-01 00:00:00
abstract:BACKGROUND:The role of prolactin (PRL) on tissue injury and repair mechanisms in multiple sclerosis (MS) remains unclear. The aim of this work was to investigate the relationship between PRL plasma levels and brain damage as measured by magnetic resonance imaging (MRI). METHODS:We employed a chemiluminescence immunoas...
journal_title:Mediators of inflammation
pub_type: 杂志文章
doi:10.1155/2015/732539
更新日期:2015-01-01 00:00:00
abstract::Bortezomib is a proteasome inhibitor used for hematologic cancer treatment. Since it can suppress NF-κB activation, which is critical for the inflammatory process, bortezomib has been found to possess anti-inflammatory activity. In this study, we evaluated the effect of bortezomib on experimental autoimmune uveitis (E...
journal_title:Mediators of inflammation
pub_type: 杂志文章
doi:10.1155/2015/847373
更新日期:2015-01-01 00:00:00
abstract:BACKGROUND/AIM:Coronary artery ectasia (CAE) was thought of as a variant of atherosclerosis. C-reactive protein (CRP) which is among the most sensitive markers of systemic inflammation, and elevation of systemic and local levels of this inflammatory marker which has been associated with an increased risk for cardiovasc...
journal_title:Mediators of inflammation
pub_type: 杂志文章
doi:10.1155/2007/89649
更新日期:2007-01-01 00:00:00