Role of NLRP3 Inflammasome Activation in Endothelial Cells
Journal name: The Malaysian Journal of Medical Sciences
Original article title: The Evolving Role of Nucleotide-binding Oligomerisation Domain-like Receptor Pyrin Domain 3 Inflammasome Activation in Vascular Endothelial Cells: A Review
The Malaysian Journal of Medical Sciences (MJMS) is a peer-reviewed, open-access journal published online at least six times a year. It covers all aspects of medical sciences and prioritizes high-quality research.
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Razif ABAS, Rusliza BASIR, Suryati MOHD THANI, Safuraa SALIHAN, Azmah SAAT, Nurul Hayati MOHAMAD ZAINAL, Siti Fadziyah MOHAMAD ASRI, Nur Izah AB RAZAK, Nurul Huda MOHD NOR, Nur Aqilah KAMARUDDIN
The Malaysian Journal of Medical Sciences:
(A peer-reviewed, open-access journal)
Full text available for: The Evolving Role of Nucleotide-binding Oligomerisation Domain-like Receptor Pyrin Domain 3 Inflammasome Activation in Vascular Endothelial Cells: A Review
Year: 2022 | Doi: 10.21315/mjms2022.29.2.2
Copyright (license): CC BY 4.0
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Summary of article contents:
Introduction
The vascular wall's defense against pathogenic damage is orchestrated by a complex interplay of various immune cells, including monocytes, macrophages, dendritic cells, and the endothelium. The endothelium is integral in regulating inflammation by managing the duration, location, and intensity of immune responses, ensuring effective defense against infections and injuries. One key component of this immune response is the NLRP3 inflammasome, a multi-protein complex that plays a crucial role in initiating inflammation when damage-associated molecular patterns (DAMPs) are detected. Upon activation, the NLRP3 inflammasome activates caspase-1, resulting in the production of interleukin-1β (IL-1β), a pivotal cytokine involved in inflammatory feedback and tissue damage response.
The Role of NLRP3 Inflammasome in Inflammation
The NLRP3 inflammasome is among the most studied protein complexes and is essential for detecting a wide range of pathogens, including bacteria and viruses. This inflammasome undergoes a two-signal activation process: a priming signal that sets the stage by upregulating pro-inflammatory cytokines and an activation signal that triggers the assembly and activation of the complex. Activation of NLRP3 leads to a cascade of events, including pyroptosis, a form of programmed cell death that promotes the release of inflammatory cytokines. However, the regulation of NLRP3 is critical, as dysregulation can lead to chronic inflammation associated with various cardiovascular diseases, highlighting the importance of understanding its mechanisms within endothelial cells.
Conclusion
In summary, the NLRP3 inflammasome plays a pivotal role in mediating the inflammatory response of endothelial cells, particularly in the context of cardiovascular health. Its activation pathways are influenced by various stimuli that can lead to harmful inflammation if not properly regulated. Future research is warranted to further explore the intricate interactions between NLRP3, endothelial dysfunction, and inflammatory diseases, potentially unveiling new therapeutic strategies to manage conditions linked to chronic inflammation and cardiovascular disorders. Understanding these mechanisms will be crucial for developing interventions that target the inflammasome to mitigate its adverse effects on vascular health.
FAQ section (important questions/answers):
What is the role of NLRP3 inflammasome in the body?
The NLRP3 inflammasome is crucial for activating inflammatory processes in response to pathogenic stimuli. It triggers the maturation of interleukin-1β and interleukin-18, key cytokines in initiating and regulating the immune response to infections or injury.
How does NLRP3 inflammasome activation lead to inflammation?
NLRP3 inflammasome activation results in the cleavage of pro-caspase-1 to active caspase-1. This process converts pro-inflammatory cytokines, such as pro-IL-1β, to their active forms, thereby instigating an inflammatory cascade critical for immune defense.
What triggers the activation of the NLRP3 inflammasome?
Various factors, including pathogen-associated molecular patterns (PAMPs) and damage-associated molecular patterns (DAMPs), can trigger NLRP3 inflammasome activation. This includes bacterial toxins, cholesterol crystals, and changes in extracellular ATP levels.
What impact does endothelial dysfunction have on cardiovascular health?
Endothelial dysfunction is associated with chronic inflammation and can lead to various cardiovascular diseases, including atherosclerosis, hypertension, and diabetes. NLRP3 inflammasome activation in endothelial cells exacerbates inflammation, increasing the risk for cardiovascular complications.
Glossary definitions and references:
Scientific and Ayurvedic Glossary list for “Role of NLRP3 Inflammasome Activation in Endothelial Cells”. This list explains important keywords that occur in this article and links it to the glossary for a better understanding of that concept in the context of Ayurveda and other topics.
1) Inflammation:
Inflammation is a key response of the immune system to injury or infection. It plays a crucial role in defending against pathogens and initiating healing processes. However, dysregulated inflammation can contribute to various chronic diseases and complications, including cardiovascular diseases, underscoring the importance of understanding its mechanisms.
2) Disease:
Disease refers to any condition that impairs normal functioning of the body or its systems. The interplay between inflammation and disease is significant; chronic inflammation is associated with conditions such as diabetes, cardiovascular diseases, and autoimmune disorders, highlighting the need for research into prevention and treatment strategies.
3) Death:
Death can occur as a result of uncontrolled inflammation leading to severe tissue damage, organ failure, or systemic complications. The mechanisms of cell death, such as pyroptosis and apoptosis, are significant in inflammation research, as understanding them helps in developing therapies to mitigate damaging effects during diseases.
4) Science (Scientific):
Science encompasses the systematic study of the structure and behavior of the physical and natural world through observation and experimentation. In the context of inflammation, disease, and immune responses, scientific research drives the discovery of mechanisms, potential therapies, and understanding of complex biological interactions in health and disease.
5) Blood:
Blood is a vital fluid that circulates through the body, transporting oxygen, nutrients, and immune cells. It plays a crucial role in inflammation, as immune responses involve the recruitment of various cells from the bloodstream to sites of injury or infection, facilitating healing while also potentially causing harm in chronic conditions.
6) Activity:
Activity refers to the various processes or actions occurring within biological systems. Inflammation activity is characterized by the recruitment and activation of immune cells, production of inflammatory cytokines, and changes in tissue and vascular responses. Understanding activity is essential for developing targeted therapies in inflammatory diseases.
7) Aureus:
Aureus, particularly Staphylococcus aureus, is a species of bacteria known for causing various infections, including skin and soft tissue infections. It is often studied in relation to inflammatory responses, as its pathogenic mechanisms can trigger intense immune activation, leading to inflammation and related sequelae in infected tissues.
8) Species:
Species refers to distinct groups of organisms that share common characteristics. In medical research, specific species are studied for understanding disease mechanisms, including those related to inflammation. Research findings from model organisms can provide insights applicable to human health and disease management.
9) Study (Studying):
A study is a systematic investigation aimed at discovering and interpreting facts. In scientific research, studies on inflammation and the NLRP3 inflammasome are essential for elucidating mechanisms underlying various diseases, providing evidence for therapeutic approaches, and contributing to the advancement of medical knowledge.
10) Ting:
Ting may refer to researchers like JP-Y Ting, who significantly contributed to the field of inflammasome research. His work helps unravel the intricate mechanisms of immune responses, particularly how pattern recognition receptors activate inflammatory pathways, thereby influencing the understanding of various diseases.
11) Accumulation (Accumulating, Accumulate):
To accumulate means to gather or collect over time. In the context of inflammation, the accumulation of inflammatory mediators and immune cells at sites of injury is a critical aspect of the body's response to harm. However, excessive accumulation can lead to tissue damage, emphasizing the need for regulation.
12) Perception:
Perception relates to the awareness and interpretation of sensory information. In the context of inflammation and immune responses, perception is important in understanding how the body recognizes damage-associated molecular patterns, thus initiating an inflammatory response. This comprehension drives therapeutic strategies aimed at modulating inflammation.
13) Swelling:
Swelling is a common symptom associated with inflammation, resulting from an increase in blood flow and fluid accumulation in tissues. This response helps protect against infection and facilitate healing, but excessive swelling can lead to pain and functional impairment, emphasizing the need for proper management in clinical settings.
14) Chauhan:
Chauhan refers to researchers investigating inflammasome pathways, contributing valuable insights into their roles in health and disease. Their studies enhance understanding of the inflammatory processes involved in various conditions, assisting in the development of therapeutic interventions aimed at mitigating inflammasome-related disorders.
15) Cutting:
Cutting may refer to groundbreaking research that advances the understanding of complex biological processes. In medicine and biology, cutting-edge studies are essential for discovering new therapeutic targets and enhancing treatment modalities, particularly in understanding inflammation and related conditions that affect health outcomes.
16) Surface:
Surface refers to the outermost layer of tissues and cells. Inflammation often involves interactions at the surface of blood vessels and damaged tissues, where immune cells adhere and migrate. Understanding surface interactions is critical for developing therapies to enhance the immune response while minimizing tissue damage.
17) Family:
Family, in a biological context, refers to a group of related organisms or genes. Many signaling pathways involved in inflammation and immune responses belong to families of proteins, such as the NLR family. Understanding these families helps in elucidating the regulatory mechanisms underlying inflammatory processes.
18) Firing:
Firing can refer to the activation of cellular pathways, such as the firing of signals during immune responses. Inflammation involves firing pathways that lead to cytokine production and activation of immune cells, essential for mounting an effective defense against infections while also potentially contributing to chronic disease.
19) Chang:
Chang is often associated with researchers contributing to inflammation and immunology. Their work is significant in dissecting the roles of specific immune pathways in health and disease, contributing to a greater understanding of inflammatory mechanisms and aiding the development of targeted therapies.
20) Table:
In scientific research, a table refers to a structured representation of data used to summarize and present findings. Tables are critical in conveying results of studies on inflammation and immune responses, providing clarity on experimental outcomes and facilitating comparisons across various studies.
21) Shari (Sari):
Sari might refer to researchers in the field of inflammation who contribute to understanding mechanisms involved in various diseases. Their findings are vital for identifying new therapeutic targets and designing strategies to mitigate the effects of inflammation on health.
22) Line:
Line may indicate a lineage or pathway in biological contexts. In inflammation research, elucidating pathways or lines of communication between immune cells and mediators is essential for understanding how inflammation can initiate and progress, informing therapeutic interventions for inflammatory diseases.
23) Salt (Salty):
Salt often refers to ionic compounds that can influence biological processes. In the context of inflammation, the imbalance of ionic components, such as sodium and potassium, can affect cellular mechanisms like NLRP3 inflammasome activation, highlighting the importance of ionic homeostasis in immune responses.
24) Burning (Burn, Burned, Burnt):
Burn typically relates to thermal injury, which induces a strong inflammatory response. This acute inflammation is essential for healing but can also lead to complications such as excessive scarring or chronic pain, emphasizing the need to manage the inflammatory response effectively following burns.
25) Viru:
Viru may indicate viral elements studied in the context of infectious diseases. Viral infections trigger inflammatory responses in the host, necessitating a thorough understanding of the mechanisms involved to develop effective treatments and vaccines, particularly in response to emerging viral pathogens.
26) Discussion:
Discussion in scientific literature refers to the section where findings are interpreted and contextualized within existing knowledge. This is crucial for understanding the implications of research on inflammation and related diseases, facilitating connections between data and practical applications in clinical settings.
27) Samala (Shamala):
Shamala refers to individuals who contribute creatively to research, such as drawing data visualizations. Their contributions enhance the clarity and comprehension of scientific findings, especially in complex fields like immunology and inflammation, aiding dissemination and understanding of research outcomes.
28) Repair:
Repair refers to the biological processes that restore tissue integrity following injury. Inflammation plays a vital role in mediating repair, acting to clear debris and stimulate regeneration. However, a balance is required to prevent excessive inflammation that could hinder proper healing.
29) Nature:
Nature refers to the inherent qualities or characteristics of organisms and biological processes. Understanding the nature of inflammatory responses is crucial for developing therapeutic strategies aimed at regulating and modulating these responses effectively in various conditions, including chronic diseases.
30) Animal:
Animal models are essential in biomedical research for studying human diseases, including inflammatory responses. These models help elucidate the mechanisms of inflammation and test potential therapies, allowing researchers to understand the complex interactions involved in disease processes and responses to treatments.
31) Kappa:
Kappa is often associated with kappa light chains in immunology, relating to antibody structure. Inflammation can be influenced by the production of antibodies and other immune components, making it pertinent to understand how kappa chains and related molecules interact within the immune response.
32) Fever:
Fever is a systemic inflammatory response characterized by elevated body temperature. It helps combat infections, but its mechanisms can also contribute to tissue damage if uncontrolled. Understanding fever's role in inflammation informs treatment approaches for both acute and chronic inflammatory conditions.
33) Devi:
Devi may refer to individuals contributing to scientific research in immunology and related fields. Their work provides insights into the functioning of immune responses, particularly concerning inflammation, enhancing the understanding of complex biological systems and informing therapeutic strategies.
34) Rich (Rch):
Rich may refer to the complexity and diversity inherent to biological pathways and reactions, particularly in inflammation. Understanding the rich interactions among various immune components is crucial for deciphering the mechanisms underlying inflammatory diseases and developing effective treatments.
35) Wall:
Wall typically refers to cellular or tissue boundaries, such as the vascular wall. The integrity of the vascular wall is pivotal in regulating inflammatory processes, influencing how the immune system responds to injury and infection while also playing a role in chronic disease progression.
36) Post:
Post may indicate the outcome or consequences of specific events in biological processes. In inflammation research, analyzing post-inflammatory conditions helps identify implications for long-term health and the potential for chronic diseases arising from unresolved or excessive inflammatory responses.
37) Drug:
Drug refers to therapeutic compounds used to treat diseases, including those targeting inflammation. Understanding the mechanisms of drug action on inflammatory processes is essential for developing effective treatments and improving patient outcomes in conditions characterized by chronic inflammation.
Other Science Concepts:
Discover the significance of concepts within the article: ‘Role of NLRP3 Inflammasome Activation in Endothelial Cells’. Further sources in the context of Science might help you critically compare this page with similair documents:
Damp, Ro, Immune system, Diabetes, Vascular system, Oxidative stress, Reactive oxygen species, Atherosclerosis, Endothelial damage, Cardiovascular disease, Endothelial dysfunction, Type 2 diabetes, Chronic Kidney Disease, Fibroblast Growth Factor, Immune response, Hypertension, Programmed cell death, Inflammatory processes, Inflammatory cytokines, Caspase 1, Atherosclerosis Development, Pathophysiological condition, IL-1, Endothelial function, Metabolic disturbance, Dengue Haemorrhagic Fever, Inflammatory disease, Mitochondria, S. aureus, Vascular endothelium, Intercellular adhesion molecule-1, Fenofibrate, Vascular permeability, Innate immune response, Tissue injury, Thrombomodulin, Vascular endothelial cells, P. falciparum, Macrophage activation, Cell Adhesion Molecule, Cathepsin B, Pathogen-associated molecular patterns, Pro-inflammatory cytokine, Endothelial cells, Innate immune system, P2x7 receptor, Toll-like receptor, Adaptive immune system, Atheroma formation, Pattern-recognition receptors, Peripheral arterial disease, Lipopolysaccharide, Vascular Wall, NLRP3 inflammasome, Inflammasomes, Vascular inflammation, Inflammatory cascade, Damage-associated molecular patterns, Atherosclerotic plaque, Bacterial products, Pyroptosis, Smooth muscle cells, Statin, Methicillin-resistant S. aureus, Foam cell formation, Lysosomal membrane, ROS generation, Macrophage, Adhesion molecule, Cardiovascular homeostasis, Leucine-rich repeat, IL-1 receptor, Monocyte recruitment.
Concepts being referred in other categories, contexts and sources.