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Acute lung injury (ALI) is characterized by acute lung inflammation and apoptosis of alveolar epithelial cells (AECs) with a high morbidity and mortality. Procyanidin B2 (PCB2) is a naturally occurring flavonoid with anti-inflammatory activity. Our previous study demonstrated that PCB2 inhibited NLRP3 inflammasome signaling and ameliorated paraquat-induced ALI in rat, indicating the protective role of PCB2. As lipopolysaccharide (LPS) induced acute cell injury and dysfunction, we continued to evaluate the protective effects of PCB2 using LPS-treated human AECs and lung fibroblasts (LFs) model. We tested the effects of PCB2 on cell permeability, viability, apoptosis, nuclear factor-kappaB (NF-κB) activation, NLRP3 inflammasome activation, and proinflammatory cytokines production in LPS-treated human AECs and LFs. PCB2 prevented LPS-induced cell apoptosis, and increased the cell viability in LPS-treated human AECs and LFs. PCB2 inhibited LPS-induced Bax and active caspase-3 expression, and promoted Bcl-2 expression. PCB2 prevented LPS-induced tumor necrosis factor-α, interleukin-1β expression, NF-κB activation, and NLRP3 inflammasome activation. PCB2 suppressed LPS-induced inflammation and apoptosis in human AECs and LFs by inhibiting NF-κB and NLRP3 inflammasome.
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The NF-κB pathway has been reported to play a very important role in the process of intervertebral disc degeneration (IVDD). Our results demonstrated that knockdown of NF-κB with P65-siRNA can signi...
Cadmium (Cd) is a toxic heavy metal that can accumulate and cause severe damage to many organs, such as liver, kidney, lung, etc. Cd also significantly suppresses immunity, however, the underlying mec...
We sought to determine whether insulin can protect against type 1 diabetes mellitus (T1DM)-induced cardiac ultrastructural alterations in an animal model of the disease. This has not been investigated...
Kynurenic acid (KA) regulates energy homeostasis and alleviates inflammation in adipose tissue but how KA affects the atherosclerotic response in HUVECs remains unclear. We evaluated the effects of KA...
BACKGROUND Salidroside, a natural dietary isothiocyanate, has been widely studied for its multiple effects, including promoting proliferation, anti-inflammation, and anti-apoptosis. In the present stu...
Investigate if caffeine accumulation in human lens epithelial cells after oral caffeine intake is sufficient to prevent from experimental ultraviolet radiation induced apoptosis
The overall goal of this study is to identify a safe dose of metformin, in combination with oligomeric procyanidin complex (OPC) for pharmacologic reduction of AGE levels in patients with ...
Primary Objective: - To determine whether celecoxib downregulates GATA-6 expression to upregulate 15-LOX-1 expression and induce apoptosis in human rectal tumors, researchers will...
Excessive inflammation, production of free radicals and vascular injury are considered the main contributors to the development of organ dysfunction in patients with severe infections and ...
Glutamine levels decrease during severe sepsis; this may be associated with increased mortality. The investigators tested the effects of glutamine supplementation on systemic inflammation ...
A forkhead box transcription factor and transcriptional activator which triggers type 1 programmed cell death (APOPTOSIS) in the absence of APOPTOSIS INHIBITING PROTEINS, including neuronal cell death induced by OXIDATIVE STRESS. It recognizes and binds to the DNA sequence 5'-(AG)TAAA(TC)A-3' and also functions in post-transcriptional regulation of the c-MYC PROTO-ONCOGENE.
A member of the TNF receptor family that was initially identified as a DEXAMETHASONE-induced protein from a T-CELL line. It may play a role in regulating APOPTOSIS and modulating immune response by T-lymphocytes. Signaling by the activated receptor occurs through its association with TNF RECEPTOR-ASSOCIATED FACTORS.
The mechanism by which latent viruses, such as genetically transmitted tumor viruses (PROVIRUSES) or PROPHAGES of lysogenic bacteria, are induced to replicate and then released as infectious viruses. It may be effected by various endogenous and exogenous stimuli, including B-cell LIPOPOLYSACCHARIDES, glucocorticoid hormones, halogenated pyrimidines, IONIZING RADIATION, ultraviolet light, and superinfecting viruses.
A serine peptidase that contains a C-terminal PDZ domain. It localizes to the mitochondrial membrane and intermembrane space, translocating to the cytoplasm following APOPTOSIS stimuli, such as UV irradiation; it promotes cell death by binding to and inhibiting INHIBITOR OF APOPTOSIS PROTEINS, resulting in an increase in activity of CASPASES. Mutations in the HTRA2 gene are associated with Type 13 PARKINSON DISEASE.
Lipid-containing polysaccharides which are endotoxins and important group-specific antigens. They are often derived from the cell wall of gram-negative bacteria and induce immunoglobulin secretion. The lipopolysaccharide molecule consists of three parts: LIPID A, core polysaccharide, and O-specific chains (O ANTIGENS). When derived from Escherichia coli, lipopolysaccharides serve as polyclonal B-cell mitogens commonly used in laboratory immunology. (From Dorland, 28th ed)
Pulmonary relating to or associated with the lungs eg Asthma, chronic bronchitis, emphysema, COPD, Cystic Fibrosis, Influenza, Lung Cancer, Pneumonia, Pulmonary Arterial Hypertension, Sleep Disorders etc Follow and track Lung Cancer News ...