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https://www.readbyqxmd.com/read/29780113/familial-mediterranean-fever-mutations-in-a-patient-with-periodic-episodes-of-systemic-pain-deriving-from-cancer-bone-metastases
#1
Kouhei Yamashita, Kiyomi Mizugishi, Akifumi Takaori-Kondo
Familial Mediterranean fever (FMF), the most common autoinflammatory disorder, is characterized by recurrent febrile attacks and polyserositis. FMF is caused by mutations in MEFV, which encodes pyrin. In this report, we present an atypical FMF case with E148Q/L110P mutations in MEFV. The patient experienced periodic episodes of systemic pain originating from prostate cancer bone metastases. The pain attacks were prevented by continuous prophylactic therapy with colchicine. In this case, the presence of atypical FMF may have modulated the clinical manifestations of cancer bone metastases...
May 18, 2018: Internal Medicine
https://www.readbyqxmd.com/read/29775050/modulation-of-macrophage-phenotype-by-biodegradable-polyurethane-nanoparticles-the-possible-relation-between-macrophage-polarization-and-immune-response-of-nanoparticles
#2
Yen-Jang Huang, Kun-Che Hung, Huey-Shan Hung, Shan-Hui Hsu
Nanomaterials with surface functionalized by different chemical groups can either provoke or attenuate the immune responses of the nanomaterials, which is critical to their biomedical efficacies. In this study we demonstrate that synthetic waterborne polyurethane nanoparticles (PU NPs) can inhibit the macrophage polarization towards the M1 phenotype, but not M2 phenotype. The surface-functionalized PU NPs decrease the secretion levels of proinflammatory cytokines (TNF-α and IL-1β) for M1 macrophages. Specifically, PU NPs with carboxyl groups on the surface exhibit a greater extent of inhibition on M1 polarization than those with amine groups...
May 18, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29774028/nlrp3-inflammasome-and-caspase-1-11-pathway-orchestrate-different-outcomes-in-the-host-protection-against-trypanosoma-cruzi-acute-infection
#3
Augusto F Paroli, Patricia V Gonzalez, Cintia Díaz-Luján, Luisina I Onofrio, Alfredo Arocena, Roxana C Cano, Eugenio A Carrera-Silva, Susana Gea
Infection with protozoan parasite Trypanosoma cruzi results in activation of nucleotide-binding domain and leucine-rich repeat containing receptors (NLRs). NLR activation leads to inflammasome formation, the activation of caspase-1, and the subsequent cleavage of IL-1β and IL-18. Considering that inflammasome activation and IL-1β induction by macrophages are key players for an appropriate T cell response, we investigated the relevance of NLR pyrin domain-containing 3 (NLRP3) and caspase-1/11 to elucidate their roles in the induction of different T cell phenotypes and the relationship with parasite load and hepatic inflammation during T...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29770580/q969r-polymorphism-in-nlrp3-is-associated-with-immune-responses-to-vaccination-against-bacterial-infections-in-pigs
#4
Hiroki Shinkai, Kei Terada, Daisuke Toki, Masanori Tohno, Hirohide Uenishi
Nucleotide-binding domain, leucine-rich-containing family, pyrin-domain containing-3 (NLRP3) is an important pattern recognition receptor involved in various inflammatory responses and adjuvant effects upon vaccination. We previously identified the Q969R (A2906G) gain-of-function polymorphism in porcine NLRP3, which increased production of interleukin-1β in in vitro gene transfection experiments. Here, we explored the associations between the A2906G polymorphism and antibody responses after vaccination against bacteria in Large White pigs maintained under specific pathogen-free conditions...
May 17, 2018: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/29769797/protective-effects-of-erigeron-breviscapus-hand-mazz-ebhm-extract-in-retinal-neurodegeneration-models
#5
Jingyuan Zhu, Li Chen, Yun Qi, Jing Feng, Li Zhu, Yujing Bai, Huijuan Wu
Purpose: To investigate the neuroprotective effects of scutellarin, an active component of the multifunctional traditional Chinese herb Erigeron breviscapus (vant.) Hand.-Mazz. (EBHM), which has been used as a neuroprotective therapy for cerebrovascular diseases. We performed the experiments using in vitro and in vivo models of retinal neurodegeneration. Methods: In the in vitro experiments, we exposed BV-2 cells to low oxygen levels in an incubator for 24 and 48 h to generate hypoxia models...
2018: Molecular Vision
https://www.readbyqxmd.com/read/29769161/nlrp3-promotes-glioma-cell-proliferation-and-invasion-via-the-interleukin-1%C3%AE-nf-%C3%AE%C2%BAb-p65-signals
#6
Liping Xue, Bin Lu, Bibo Gao, Yangyang Shi, Jingqi Xu, Rui Yang, Bo Xu, Peng Ding
Due to the characteristics of high invasiveness, relapse and poor prognosis, the management of malignant gliomas has always been a great challenge. Nod-like receptor (NLR) family pyrin domain containing 3 (NLRP3) is a crucial component of the NLRP3 inflammasome, a multiprotein complex that can triggercaspase-1/interleukin-1 (IL-1) mediated inflammatory response once activated and participates in the pathogeny of diverse inflammatory diseases as well as cancers. Herein, we examined the function of NLRP3 in the development of glioma...
May 16, 2018: Oncology Research
https://www.readbyqxmd.com/read/29767259/silencing-of-mir%C3%A2-155-suppresses-inflammatory-responses-in-psoriasis-through-inflammasome-nlrp3-regulation
#7
Quan Luo, Jingxin Zeng, Wei Li, Ling Lin, Xin Zhou, Xin Tian, Weiyu Liu, Lidan Zhang, Xibao Zhang
Psoriasis is a dermatosis with the major clinical symptoms of scale, erythema and itching, and it has a long disease course. In addition, it is easily recurrent and refractory, greatly affecting the physical and mental health of patients. In the present study, it was hypothesized that the function of miR‑155 increases psoriasis‑induced inflammation and that its expression may be dependent on inflammasome activation. miR‑155 expression was examined by gene chip array and quantitative polymerase chain reaction analysis...
May 14, 2018: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29764192/simvastatin-suppresses-interleukin-i%C3%AE-release-in-human-peripheral-blood-mononuclear-cells-stimulated-with-cholesterol-crystals
#8
Anna J Boland, Nisha Gangadharan, Pierce Kavanagh, Linda Hemeryck, Jennifer Kieran, Michael Barry, Patrick T Walsh, Margaret Lucitt
Statins are mainstream therapy in the treatment and prevention of cardiovascular disease through inhibitory effects on cholesterol synthesis. However, statins' beneficial effects in cardiovascular disease may also be attributable to their role as anti-inflammatory mediators. Here, we investigated the effects of simvastatin treatment on expression levels of interleukin (IL) 1β in both patient with hyperlipidemia and healthy human peripheral blood mononuclear cells (PBMCs) using cholesterol crystals (CC), a cardiovascular pathogenic stimulus for activation of the NOD-like receptor pyrin domain-containing protein 3 (NLRP3) inflammasome...
January 1, 2018: Journal of Cardiovascular Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/29753511/acute-adrenal-cortex-injury-during-cardiopulmonary-bypass-in-a-canine-model
#9
Bo Mei, Song Yang, Yuan Yue, Jian Hou, Keke Wang, Guangxian Chen, Mengya Liang, Zhongkai Wu
OBJECTIVE: Cardiopulmonary bypass (CPB) might induce systemic inflammatory responses that cause acute injuries to multiple organs. However, no direct evidence exists to determine whether CPB leads to adrenal cortex injury or to describe its underlying mechanism. METHODS: Twelve healthy adult beagles were randomly assigned into control and CPB groups. After cannulation, mild hypothermia CPB was performed in the CPB group but not in the control group. The serum concentrations of various cytokines, cortisol, and aldosterone were assessed...
April 11, 2018: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29749463/apelin-protects-against-sepsis%C3%A2-induced-cardiomyopathy-by-inhibiting-the-tlr4-and-nlrp3-signaling-pathways
#10
Qiancheng Luo, Guorong Liu, Guo Chen, Dongfeng Guo, Lei Xu, Min Hang, Mingming Jin
The mechanism underlying sepsis‑induced cardiomyopathy (SICM) remains unclear. The aim of the present study was therefore to illuminate the mechanisms and effects of apelin on SICM, using both patient clinical features and a sepsis rat model. A total of 73 adult patients with or without sepsis were analyzed. Male rats were used to generate the sepsis model through cecal ligation and puncture (CLP). The clinical analysis results demonstrated that sepsis induced cardiac dysfunction, including a decrease of left ventricular end‑diastolic dimension, fractional shortening, ejection fraction, left ventricular end‑systolic dimension, and stroke volume, compared with healthy controls...
May 9, 2018: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29747372/-research-progress-on-the-role-of-nlrp3-inflammasome-in-ocular-diseases
#11
Z X Gu, Y Zhang, Z X Dou, S Z Zhao
Nucleotide-binding oligomerization domain-like receptor pyrin domain containing-3 (NLRP3) inflammasome is a type of multi-protein complex within the cell, the activation of which promotes the release of bioactive interleukin(IL)-1β and IL-18 and contributes to inflammatory progress. In recent years, the research on the role of NLRP3 inflammasome in the pathogenesis and development of ocular surface and fundus diseases has made considerable progress. This review summarizes current understanding in the structure, ocular expression, and mechanisms of activation of NLRP3 inflammasome, as well as the contribution of this protein complex to eye diseases, thereby revealing the theoretical possibility that NLRP3 inflammasome might serve as a novel therapeutic target for the related ocular diseases...
May 11, 2018: [Zhonghua Yan Ke za Zhi] Chinese Journal of Ophthalmology
https://www.readbyqxmd.com/read/29743981/induction-of-nlrp3-inflammasome-activation-by-heme-in-human-endothelial-cells
#12
Judit Erdei, Andrea Tóth, Enikő Balogh, Benard Bogonko Nyakundi, Emese Bányai, Bernhard Ryffel, György Paragh, Mario D Cordero, Viktória Jeney
Hemolytic or hemorrhagic episodes are often associated with inflammation even when infectious agents are absent suggesting that red blood cells (RBCs) release damage-associated molecular patterns (DAMPs). DAMPs activate immune and nonimmune cells through pattern recognition receptors. Heme, released from RBCs, is a DAMP and induces IL-1 β production through the activation of the nucleotide-binding domain and leucine-rich repeat-containing family and pyrin domain containing 3 (NLRP3) in macrophages; however, other cellular targets of heme-mediated inflammasome activation were not investigated...
2018: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/29740155/an-update-on-the-genetics-of-hyperuricaemia-and-gout
#13
REVIEW
Tanya J Major, Nicola Dalbeth, Eli A Stahl, Tony R Merriman
A central aspect of the pathogenesis of gout is elevated urate concentrations, which lead to the formation of monosodium urate crystals. The clinical features of gout result from an individual's immune response to these deposited crystals. Genome-wide association studies (GWAS) have confirmed the importance of urate excretion in the control of serum urate levels and the risk of gout and have identified the kidneys, the gut and the liver as sites of urate regulation. The genetic contribution to the progression from hyperuricaemia to gout remains relatively poorly understood, although genes encoding proteins that are involved in the NLRP3 (NOD-, LRR- and pyrin domain-containing 3) inflammasome pathway play a part...
May 8, 2018: Nature Reviews. Rheumatology
https://www.readbyqxmd.com/read/29730819/artesunate-inhibits-renal-ischemia-reperfusion-mediated-remote-lung-inflammation-through-attenuating-ros-induced-activation-of-nlrp3-inflammasome
#14
Zhaohui Liu, Min Qu, Lili Yu, Panpan Song, Yulin Chang
The molecular mechanisms of acute lung injury (ALI) are closely associated with nucleotide-binding domains and leucine-rich repeat (NLR) pyrin domains containing 3 (NLRP3) inflammasome, in which alveolar macrophages (AMs) exert an essential function. Our study has been proved that artesunate (AS) inhibits ALI. Nevertheless, the inhibition actions of AS on activation of NLRP3 in renal ischemia-reperfusion (RIR)-mediated ALI remain to be further discussed. Male Sprague-Dawley rats were randomly assigned into four groups: sham + NS, sham + AS, RIR + NS, and RIR + AS...
May 5, 2018: Inflammation
https://www.readbyqxmd.com/read/29729307/virgin-coconut-oil-vco-by-normalizing-nlrp3-inflammasome-showed-potential-neuroprotective-effects-in-amyloid-%C3%AE-induced-toxicity-and-high-fat-diet-fed-rat
#15
Fatemeh Mirzaei, Mozafar Khazaei, Alireza Komaki, Iraj Amiri, Cyrus Jalili
Both dyslipidemia and Alzheimer disease (AD) are associated with aging. In this study, the effects of virgin coconut oil (VCO) on inflammasome and oxidative stress in Alzheimer's model (receiving Amyloid-β (Aβ)) and high-fat diet (HFD) model were determined. A total of 120 male Wistar rats, were divided into 12 groups (n = 10), including; healthy control, sham surgery, sham surgery receiving normal saline, HFD, HFD + 8% VCO, HFD + 10% VCO, Aβ received rats, Aβ + 8%VCO, Aβ + 10%VCO, HFD + Aβ, HFD + Aβ+8%VCO, and HFD + Aβ + 10%VCO...
May 2, 2018: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/29718184/the-pyrin-inflammasome-from-sensing-rhoa-gtpases-inhibiting-toxins-to-triggering-autoinflammatory-syndromes
#16
Yvan Jamilloux, Flora Magnotti, Alexandre Belot, Thomas Henry
Numerous pathogens including Clostridium difficile and Yersinia pestis have evolved toxins or effectors targeting GTPases from the RhoA subfamily (RhoA/B/C) to inhibit or hijack the host cytoskeleton dynamics. The resulting impairment of RhoA GTPases activity is sensed by the host via an innate immune complex termed the pyrin inflammasome in which caspase-1 is activated. The cascade leading to activation of the pyrin inflammasome has been recently uncovered. In this review, following a brief presentation of RhoA GTPases-modulating toxins, we present the pyrin inflammasome and its regulatory mechanisms...
April 1, 2018: Pathogens and Disease
https://www.readbyqxmd.com/read/29716544/nlrp3-promotes-tumor-growth-and-metastasis-in-human-oral-squamous-cell-carcinoma
#17
Han Wang, Qingqiong Luo, Xiaodong Feng, Ruiyang Zhang, Jiang Li, Fuxiang Chen
BACKGROUND: Inflammasomes are reported to be abnormally expressed and activated in several malignancies and play important roles in tumor development. The present study was designed to investigate the expression and function of the NLR family pyrin domain containing protein 3 (NLRP3) inflammasome in oral squamous cell carcinoma (OSCC). METHODS: NLRP3 expression in OSCC cell lines and the normal human immortalized oral epithelial cells (HIOEC) was determined by real-time PCR and western blot...
May 2, 2018: BMC Cancer
https://www.readbyqxmd.com/read/29710809/anti-oxidant-and-anti-inflammatory-activity-of-ketogenic-diet-new-perspectives-for-neuroprotection-in-alzheimer-s-disease
#18
REVIEW
Alessandro Pinto, Alessio Bonucci, Elisa Maggi, Mariangela Corsi, Rita Businaro
The ketogenic diet, originally developed for the treatment of epilepsy in non-responder children, is spreading to be used in the treatment of many diseases, including Alzheimer’s disease. The main activity of the ketogenic diet has been related to improved mitochondrial function and decreased oxidative stress. B-Hydroxybutyrate, the most studied ketone body, has been shown to reduce the production of reactive oxygen species (ROS), improving mitochondrial respiration: it stimulates the cellular endogenous antioxidant system with the activation of nuclear factor erythroid-derived 2-related factor 2 (Nrf2), it modulates the ratio between the oxidized and reduced forms of nicotinamide adenine dinucleotide (NAD⁺/NADH) and it increases the efficiency of electron transport chain through the expression of uncoupling proteins...
April 28, 2018: Antioxidants (Basel, Switzerland)
https://www.readbyqxmd.com/read/29682880/activation-of-nlrp3-inflammasome-in-macrophages-by-mycoplasmal-lipoproteins-and-lipopeptides
#19
Ayumi Saeki, Masahiro Sugiyama, Akira Hasebe, Toshihiko Suzuki, Ken-Ichiro Shibata
The NLRP3 inflammasome, an intracellular sensor consisting of the NOD-like receptor family, pyrin domain containing 3 (NLRP3), the adaptor protein apoptosis-associated speck-like protein containing a caspase-recruitment domain (ASC), and procaspase-1, plays critical roles in host defense against microbial pathogens by inducing production of interleukin (IL)-1β and IL-18. Mycoplasma salivarium and Mycoplasma pneumoniae cells activated murine bone marrow-derived macrophages (BMMs) to induce production of IL-1α, IL-1β, and IL-18...
April 23, 2018: Molecular Oral Microbiology
https://www.readbyqxmd.com/read/29682582/vitamin-d-3-protects-against-diabetic-retinopathy-by-inhibiting-high-glucose-induced-activation-of-the-ros-txnip-nlrp3-inflammasome-pathway
#20
Li Lu, Qianyi Lu, Wei Chen, Jingwen Li, Chunxia Li, Zhi Zheng
Purpose: This study aimed to evaluate the mechanisms underlying the effects of 1,25-dihydroxyvitamin D (vitamin D3 ) on diabetes-induced retinal vascular damage and retinal vascular endothelial cell apoptosis. Methods: Diabetic and control rats were randomly assigned to receive vitamin D3 or vehicle for 6 months. Additionally, human retinal microvascular endothelial cells (HRMECs) were incubated in normal or high-glucose medium with or without vitamin D3 . Morphological changes in retinal tissues and retinal vascular permeability were examined, and cellular apoptosis was detected by fluorescence staining...
2018: Journal of Diabetes Research
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