The Role of Acetylated Cyclooxygenase-2 in the Biosynthesis of Resolvin Precursors Derived from Eicosapentaenoic Acid

2022 ◽  
Author(s):  
Anna Cebrián-Prats ◽  
Alexandre Pinto ◽  
Àngels González-Lafont ◽  
Pedro Alexandrino Fernandes ◽  
José M Lluch
Keyword(s):  
Eicosapentaenoic Acid ◽  
Lipid Mediators ◽  
Cyclooxygenase 2 ◽  
Inflammatory Processes ◽  
Bioactive Agents ◽  
Inflammation Resolution

Specialized pro-resolving lipid mediators (SPMs) are natural bioactive agents actively involved in inflammation resolution. SPMs act when uncontrolled inflammatory processes are developed, for instance, in patients of COVID-19 or other...

scholarly journals Endogenous Receptor Agonists: Resolving Inflammation

2007 ◽  
Vol 7 ◽  
pp. 1440-1462 ◽  
Author(s):  
Gerhard Bannenberg ◽  
Makoto Arita ◽  
Charles N. Serhan
Keyword(s):  
Fatty Acids ◽  
Essential Fatty Acids ◽  
Tissue Level ◽  
Lipid Mediators ◽  
Recent Advances ◽  
Molecular Events ◽  
Inflammation Resolution ◽  
Specific Lipid ◽  
Chemical Mediators

Controlled resolution or the physiologic resolution of a well-orchestrated inflammatory response at the tissue level is essential to return to homeostasis. A comprehensive understanding of the cellular and molecular events that control the termination of acute inflammation is needed in molecular terms given the widely held view that aberrant inflammation underlies many common diseases. This review focuses on recent advances in the understanding of the role of arachidonic acid and ω-3 polyunsaturated fatty acids (PUFA)–derived lipid mediators in regulating the resolution of inflammation. Using a functional lipidomic approach employing LC-MS-MS–based informatics, recent studies, reviewed herein, uncovered new families of local-acting chemical mediators actively biosynthesized during the resolution phase from the essential fatty acids eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA). These new families of local chemical mediators are generated endogenously in exudates collected during the resolution phase, and were coined resolvins and protectins because specific members of these novel chemical families control both the duration and magnitude of inflammation in animal models of complex diseases. Recent advances on the biosynthesis, receptors, and actions of these novel anti-inflammatory and proresolving lipid mediators are reviewed with the aim to bring to attention the important role of specific lipid mediators as endogenous agonists in inflammation resolution.

scholarly journals Harnessing Inflammation Resolution in Arthritis: Current Understanding of Specialized Pro-resolving Lipid Mediators’ Contribution to Arthritis Physiopathology and Future Perspectives

2021 ◽  
Vol 12 ◽  
Author(s):  
Tiago H. Zaninelli ◽  
Victor Fattori ◽  
Waldiceu A. Verri
Keyword(s):  
Life Quality ◽  
Lipid Mediators ◽  
Current Understanding ◽  
Active Process ◽  
Pathophysiological Role ◽  
Inflammation Resolution ◽  
And Control ◽  
Experienced Symptom

The concept behind the resolution of inflammation has changed in the past decades from a passive to an active process, which reflects in novel avenues to understand and control inflammation-driven diseases. The time-dependent and active process of resolution phase is orchestrated by the endogenous biosynthesis of specialized pro-resolving lipid mediators (SPMs). Inflammation and its resolution are two forces in rheumatic diseases that affect millions of people worldwide with pain as the most common experienced symptom. The pathophysiological role of SPMs in arthritis has been demonstrated in pre-clinical and clinical studies (no clinical trials yet), which highlight their active orchestration of disease control. The endogenous roles of SPMs also give rise to the opportunity of envisaging these molecules as novel candidates to improve the life quality of rhematic diseases patients. Herein, we discuss the current understanding of SPMs endogenous roles in arthritis as pro-resolutive, protective, and immunoresolvent lipids.

scholarly journals AT-RvD1 Modulates CCL-2 and CXCL-8 Production and NF-κB, STAT-6, SOCS1, and SOCS3 Expression on Bronchial Epithelial Cells Stimulated with IL-4

2015 ◽  
Vol 2015 ◽  
pp. 1-8 ◽  
Author(s):  
Jhony Robison de Oliveira ◽  
Daniely Cornélio Favarin ◽  
Sarah Cristina Sato Vaz Tanaka ◽  
Marly Aparecida Spadotto Balarin ◽  
David Nascimento Silva Teixeira ◽  
...  
Keyword(s):  
Epithelial Cells ◽  
Therapeutic Agent ◽  
Bronchial Epithelial Cells ◽  
Lipid Mediators ◽  
First Line ◽  
Bronchial Epithelial ◽  
Mediators Of Inflammation ◽  
Socs3 Expression ◽  
Inflammatory Processes ◽  
Inflammation Resolution

Bronchial epithelial cells represent the first line of defense against microorganisms and allergens in the airways and play an important role in chronic inflammatory processes such as asthma. In an experimental model, both RvD1 and AT-RvD1, lipid mediators of inflammation resolution, ameliorated some of the most important phenotypes of experimental asthma. Here, we extend these results and demonstrate the effect of AT-RvD1 on bronchial epithelial cells (BEAS-2B) stimulated with IL-4. AT-RvD1 (100 nM) decreased both CCL2 and CXCL-8 production, in part by decreasing STAT6 and NF-κB pathways. Furthermore, the effects of AT-RvD1 were ALX/FRP2 receptor dependent, as the antagonist of this receptor (BOC1) reversed the inhibition of these chemokines by AT-RvD1. In addition, AT-RvD1 decreased SOCS1 and increased SOCS3 expression, which play important roles in Th1 and Th17 modulation, respectively. In conclusion, AT-RvD1 demonstrated significant effects on the IL-4-induced activation of bronchial epithelial cells and consequently the potential to modulate neutrophilic and eosinophilic airway inflammation in asthma. Taken together, these findings identify AT-RvD1 as a potential proresolving therapeutic agent for allergic responses in the airways.

Role of cyclooxygenase-2 in the development and treatment of oesophageal adenocarcinoma

2003 ◽  
Vol 38 (0) ◽  
pp. 87-93 ◽  
Author(s):  
C. J. Buskens ◽  
Ristimäki A. ◽  
G. J. A. Offerhaus ◽  
D. J. Richel ◽  
J. J. B. van Lanschot
Keyword(s):  
Cyclooxygenase 2 ◽  
Oesophageal Adenocarcinoma

Virome and Inflammasomes, a Finely Tuned Balance with Important Consequences for the Host Health

2019 ◽  
Vol 26 (6) ◽  
pp. 1027-1044 ◽  
Author(s):  
Giulia Freer ◽  
Fabrizio Maggi ◽  
Mauro Pistello
Keyword(s):  
Immune System ◽  
Human Beings ◽  
Review Of The Literature ◽  
Adaptive Immune ◽  
Downstream Effects ◽  
Host Health ◽  
Inflammatory Processes ◽  
Human Immune ◽  
Immune Defences

Background:The virome is a network of viruses normally inhabiting humans. It forms a conspicuous portion of the so-called microbiome, once generically referred to as resident flora. Indeed, viruses infecting humans without leading to clinical disease are increasingly recognized as part of the microbiome and have an impact on the development of our immune system. In addition, they activate inflammasomes, multiprotein complexes that assemble in cells and that are responsible for the downstream effects of sensing pathogens.Objective:This review aims at summarizing the evidence on the role of the virome in modulating inflammation and emphasizes evidence for Anelloviruses as useful molecular markers to monitor inflammatory processes and immune system competence.Method:We carried out a review of the literature published in the last 5 years and summarized older literature to take into account ground-breaking discoveries concerning inflammasome assembly and virome.Results:A massive amount of data recently emerging demonstrate that the microbiome closely reflects what we eat, and many other unexpected variables. Composition, location, and amount of the microbiome have an impact on innate and adaptive immune defences. Viruses making up the virome contribute to shaping the immune system. Anelloviruses, the best known of such viruses, are present in most human beings, persistently without causing apparent disease. Depending on their interplay with such viruses, inflammasomes instruct host defences to tolerate or forfeit a specific microorganism.Conclusion:The virome plays an important role in shaping human immune defences and contributes to inflammatory processes by quenching or increasing them.

scholarly journals Mesenchymal Stem Cells: The Secret Children’s Weapons against the SARS-CoV-2 Lethal Infection

2021 ◽  
Vol 11 (4) ◽  
pp. 1696
Author(s):  
Mario Giosuè Balzanelli ◽  
Pietro Distratis ◽  
Orazio Catucci ◽  
Angelo Cefalo ◽  
Rita Lazzaro ◽  
...  
Keyword(s):  
Stem Cells ◽  
Mesenchymal Stem Cells ◽  
Respiratory Infections ◽  
Acute Respiratory Infections ◽  
Unusual Event ◽  
Inflammatory Processes ◽  
Life Threatening ◽  
Severe Acute Respiratory Infections ◽  
Novel Coronavirus

Due to the promising effects of mesenchymal stem cells (MSCs) in the treatment of various diseases, this commentary aimed to focus on the auxiliary role of MSCs to reduce inflammatory processes of acute respiratory infections caused by the 2019 novel coronavirus (COVID-19). Since early in 2020, COVID-19, a consequence of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), has rapidly affected millions of people world-wide. The SARS-CoV-2 infection in children appears to be an unusual event. Despite the high number of affected adult and elderly, children and adolescents remained low in amounts, and marginally touched. Based on the promising role of cell therapy and regenerative medicine approaches in the treatment of several life-threatening diseases, it seems that applying MSCs cell-based approaches can also be a hopeful strategy for improving subjects with severe acute respiratory infections caused by COVID-19.

scholarly journals Infarct in the Heart: What’s MMP-9 Got to Do with It?

Biomolecules ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 491
Author(s):  
Mediha Becirovic-Agic ◽  
Upendra Chalise ◽  
Michael J. Daseke ◽  
Shelby Konfrst ◽  
Jeffrey D. Salomon ◽  
...  
Keyword(s):  
Wound Healing ◽  
Cardiac Repair ◽  
Dual Effect ◽  
Strong Connection ◽  
The Past ◽  
Left Ventricle Remodeling ◽  
Inflammation Resolution ◽  
Metalloproteinase 9 ◽  
Cell Transition

Over the past three decades, numerous studies have shown a strong connection between matrix metalloproteinase 9 (MMP-9) levels and myocardial infarction (MI) mortality and left ventricle remodeling and dysfunction. Despite this fact, clinical trials using MMP-9 inhibitors have been disappointing. This review focuses on the roles of MMP-9 in MI wound healing. Infiltrating leukocytes, cardiomyocytes, fibroblasts, and endothelial cells secrete MMP-9 during all phases of cardiac repair. MMP-9 both exacerbates the inflammatory response and aids in inflammation resolution by stimulating the pro-inflammatory to reparative cell transition. In addition, MMP-9 has a dual effect on neovascularization and prevents an overly stiff scar. Here, we review the complex role of MMP-9 in cardiac wound healing, and highlight the importance of targeting MMP-9 only for its detrimental actions. Therefore, delineating signaling pathways downstream of MMP-9 is critical.

The Role of Cyclooxygenase-2 in Lumbar Disc Herniation

Spine ◽  
2002 ◽  
Vol 27 (22) ◽  
pp. 2477-2483 ◽  
Author(s):  
Hiroshi Miyamoto ◽  
Ryuichi Saura ◽  
Minoru Doita ◽  
Masahiro Kurosaka ◽  
Kosaku Mizuno
Keyword(s):  
Lumbar Disc Herniation ◽  
Disc Herniation ◽  
Lumbar Disc ◽  
Cyclooxygenase 2

Specialized, pro-resolving mediators as potential therapeutic agents for alleviating fibromyalgia symptomatology

Pain Medicine ◽  
2021 ◽  
Author(s):  
Gregory Livshits ◽  
Alexander Kalinkovich
Keyword(s):  
Animal Experiments ◽  
Therapeutic Agents ◽  
Treatment Modalities ◽  
Inflammatory Factors ◽  
Gut Dysbiosis ◽  
Unsuccessful Treatment ◽  
Pain Sensitization ◽  
Novel Strategy ◽  
Inflammation Resolution

Abstract Objective To present a hypothesis on a novel strategy in the treatment of fibromyalgia (FM). Design A narrative review. Setting FM as a disease remains a challenging concept for numerous reasons, including undefined etiopathogenesis, unclear triggers and unsuccessful treatment modalities. We hypothesize that the inflammatome, the entire set of molecules involved in inflammation, acting as a common pathophysiological instrument of gut dysbiosis, sarcopenia, and neuroinflammation, is one of the major mechanisms underlying FM pathogenesis. In this setup, dysbiosis is proposed as the primary trigger of the inflammatome, sarcopenia as the peripheral nociceptive source, and neuroinflammation as the central mechanism of pain sensitization, transmission and symptomatology of FM. Whereas neuroinflammation is highly-considered as a critical deleterious element in FM pathogenesis, the presumed pathogenic roles of sarcopenia and systemic inflammation remain controversial. Nevertheless, sarcopenia-associated processes and dysbiosis have been recently detected in FM individuals. The prevalence of pro-inflammatory factors in the cerebrospinal fluid and blood has been repeatedly observed in FM individuals, supporting an idea on the role of inflammatome in FM pathogenesis. As such, failed inflammation resolution might be one of the underlying pathogenic mechanisms. In accordance, the application of specialized, inflammation pro-resolving mediators (SPMs) seems most suitable for this goal. Conclusions The capability of various SPMs to prevent and attenuate pain has been repeatedly demonstrated in laboratory animal experiments. Since SPMs suppress inflammation in a manner that does not compromise host defense, they could be attractive and safe candidates for the alleviation of FM symptomatology, probably in combination with anti-dysbiotic medicine.

Sign in / Sign up

Export Citation Format

Share Document