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Inflammasome and the kidneys

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https://www.readbyqxmd.com/read/28933050/toll-like-receptor-4-signaling-mediates-inflammation-and-tissue-injury-in-diabetic-nephropathy
#1
REVIEW
Giacomo Garibotto, Annalisa Carta, Daniela Picciotto, Francesca Viazzi, Daniela Verzola
Toll-like receptors (TLRs) are a class of receptors of the innate immune system which detect pathogen-associated and danger-associated molecular patterns in order to initiate an inflammatory response. TLR2 and TLR4 downward signaling causes the production of proinflammatory cytokines that can induce insulin resistance and cardiovascular damage in obesity and type 2 diabetes mellitus. In diabetic nephropathy, TLR4, nucleotide-binding oligomerization domain-containing protein 2 (NOD2), and NLRP3 inflammasome are involved in the production and persistence of inflammation...
September 20, 2017: Journal of Nephrology
https://www.readbyqxmd.com/read/28918467/anisodamine-inhibits-endoplasmic-reticulum-stress-associated-txnip-nlrp3-inflammasome-activation-in-rhabdomyolysis-induced-acute-kidney-injury
#2
Xiaopeng Yuan, Yitao Zheng, Chuanbao Chen, Changxi Wang
Anisodamine protects against free radical-induced cellular damage. This study aimed to investigate the protective effect of anisodamine on rhabdomyolysis-induced acute kidney injury (RIAKI). C57BL/6 J mice, TXNIP(-/-) and NLRP3 (-/-) (both were C57BL/6 J background) mice were used to construct RIAKI model. Anisodamine administration was performed on RIAKI mice only. Mice were divided into control, TXNIP-KD (knock down), LNPR3-KD, and anisodamine group (n = 15 in each group). The renal injury, renal function, renal tubular cells apoptosis and expression of Caspase-1, ASC, endoplasmic reticulum (ER) stress markers IRE-1α, CHOP, and ATF4, and interleukin (IL-1α, IL-1β, and IL-18) were detected...
September 16, 2017: Apoptosis: An International Journal on Programmed Cell Death
https://www.readbyqxmd.com/read/28884615/resveratrol-loaded-nanoparticles-conjugated-with-kidney-injury-molecule-1-as-a-drug-delivery-system-for-potential-use-in-chronic-kidney-disease
#3
Yuh-Feng Lin, Yu-Hsuan Lee, Yung-Ho Hsu, Yi-Jie Chen, Yuan-Feng Lin, Fong-Yu Cheng, Hui-Wen Chiu
AIM: We used resveratrol (Res)-loaded nanoparticles (Res NPs) as a novel method for improving the pharmacokinetic properties of Res and analyzed the effect of Res NPs in chronic kidney disease (CKD). MATERIALS & METHODS: We coupled anti-kidney injury molecule-1 antibodies to Res NPs and analyzed safety and efficacy. RESULTS: Res NPs had low toxicity and induced autophagy. Res NPs inhibited the NLRP3 inflammasome and IL-1β secretion. Higher NLRP3 expression levels were observed in peripheral blood monocytic cells of CKD patients than healthy individuals...
September 8, 2017: Nanomedicine
https://www.readbyqxmd.com/read/28878231/dietary-iron-restriction-alleviates-renal-tubulointerstitial-injury-induced-by-protein-overload-in-mice
#4
Yasumasa Ikeda, Yuya Horinouchi, Hirofumi Hamano, Tasuku Hirayama, Seiji Kishi, Yuki Izawa-Ishizawa, Masaki Imanishi, Yoshito Zamami, Kenshi Takechi, Licht Miyamoto, Keisuke Ishizawa, Ken-Ichi Aihara, Hideko Nagasawa, Koichiro Tsuchiya, Toshiaki Tamaki
Increased proteinuria causes tubulointerstitial injury due to inflammation in chronic kidney disease (CKD). Iron restriction exhibits protective effects against renal dysfunction; however, its effects against protein overload-induced tubulointerstitial damage remain unclear. Here, we investigated dietary iron restriction effect on tubulointerstitial damage in mice with protein-overload tubulointerstitial injury. Renal tubulointerstitial injury in animal model was induced by intraperitoneal injection of an overdose of bovine serum albumin (BSA)...
September 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28871285/immortalization-and-characterization-of-porcine-macrophages-that-had-been-transduced-with-lentiviral-vectors-encoding-the-sv40-large-t-antigen-and-porcine-telomerase-reverse-transcriptase
#5
Takato Takenouchi, Hiroshi Kitani, Shunichi Suzuki, Michiko Nakai, Dai-Ichiro Fuchimoto, Mitsutoshi Tsukimoto, Hiroki Shinkai, Mitsuru Sato, Hirohide Uenishi
The domestic pig is an important agricultural animal, and thus, infectious diseases that affect pigs can cause severe economic losses in the global swine industry. Various porcine pathogens target macrophages, which are classical innate immune cells. Although macrophages basically protect the host from pathogens, they also seem to contribute to infectious processes. Therefore, cultured macrophages can be used to develop in vitro models for studying not only genes associated with porcine innate immunity but also the infectious processes of porcine pathogens...
2017: Frontiers in Veterinary Science
https://www.readbyqxmd.com/read/28857469/the-nlpr3-inflammasome-and-obesity-related-kidney-disease
#6
REVIEW
Ben Ke, Wen Shen, Xiangdong Fang, Qinghua Wu
Over the past decade, the prevalence of obesity has increased, accompanied by a parallel increase in the prevalence of chronic kidney disease (CKD). Mounting evidence suggests that high body mass index (BMI) and obesity are important risk factors for CKD, but little is known about the mechanisms of obesity-related kidney disease (ORKD). The NLRP3 inflammasome is a polyprotein complex that plays a crucial role in the inflammatory process, and numerous recent studies suggest that the NLRP3 inflammasome is involved in ORKD development and may serve as a key modulator of ORKD...
August 31, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28854431/involvement-of-s100a8-a9-tlr4-nlrp3-inflammasome-pathway-in-contrast-induced-acute-kidney-injury
#7
Xuexian Tan, Xiaohe Zheng, Zena Huang, Jiaqiong Lin, Chuli Xie, Yan Lin
BACKGROUND: Contrast-induced acute kidney injury (CIAKI) is a common cause of hospital-acquired acute kidney injury (AKI). S100A8/A9-TLR4-NLRP3 inflammasome pathway triggers inflammation, apoptosis and tissue injury in several AKI models. Nevertheless, the underlying mechanism of S100A8/A9-TLR4-NLRP3 inflammasome pathway in CIKAI is not clear. We aimed to investigate the possible role of S100A8/A9-TLR4-NLRP3 inflammasome in the pathophysiology of CIAKI. METHODS: We treated male rats and NRK-52E cells by iopromide to establish in vivo and in vitro models of CIAKI...
August 30, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28821730/infiltration-of-m1-but-not-m2-macrophages-is-impaired-after-unilateral-ureter-obstruction-in-nrf2-deficient-mice
#8
Yuji Sogawa, Hajime Nagasu, Shigeki Iwase, Chieko Ihoriya, Seiji Itano, Atsushi Uchida, Kengo Kidokoro, Shun'ichiro Taniguchi, Masafumi Takahashi, Minoru Satoh, Tamaki Sasaki, Takafumi Suzuki, Masayuki Yamamoto, Tiffany Horng, Naoki Kashihara
Chronic inflammation can be a major driver of the failure of a variety of organs, including chronic kidney disease (CKD). The NLR family pyrin domain-containing 3 (NLRP3) inflammasome has been shown to play a pivotal role in inflammation in a mouse kidney disease model. Nuclear factor erythroid 2-related factor 2 (Nrf2), the master transcription factor for anti-oxidant responses, has also been implicated in inflammasome activation under physiological conditions. However, the mechanism underlying inflammasome activation in CKD remains elusive...
August 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28808241/specific-calpain-inhibition-protects-kidney-against-inflammaging
#9
Guillaume Hanouna, Laurent Mesnard, Sophie Vandermeersch, Joëlle Perez, Sandrine Placier, Jean-Philippe Haymann, Fabien Campagne, Julien Moroch, Aurélien Bataille, Laurent Baud, Emmanuel Letavernier
Calpains are ubiquitous pro-inflammatory proteases, whose activity is controlled by calpastatin, their specific inhibitor. Transgenic mice over-expressing rabbit calpastatin (CalpTG) are protected against vascular remodelling and angiotensin II-dependent inflammation. We hypothesized that specific calpain inhibition would protect against aging-related lesions in arteries and kidneys. We analysed tissues from 2-months and 2-years-old CalpTG and wild-type mice and performed high throughput RNA-Sequencing of kidney tissue in aged mice...
August 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28808190/cholesterol-crystal-embolization-following-plaque-rupture-a-systemic-disease-with-unusual-features
#10
Firas Ghanem, Deepthi Vodnala, Jagadeesh K Kalavakunta, Sridevi Durga, Noah Thormeier, Prem Subramaniyam, Scott Abela, George S Abela
Cholesterol crystal embolic (CCE) syndrome is often a clinically challenging condition that has a poor prognostic implication. It is a result of plaque rupture with release of cholesterol crystals into the circulation that embolize into various tissue organs. Plaque rupture seems to be triggered by an expanding necrotic core during cholesterol crystallization forming sharp tipped crystals that perforate and tear the fibrous cap. Embolizing cholesterol crystals then initiate both local and systemic inflammation that eventually lead to vascular fibrosis and obstruction causing symptoms that can mimic other vasculitic conditions...
January 19, 2017: Journal of Biomedical Research
https://www.readbyqxmd.com/read/28791390/beneficial-effect-of-magnolol-on-lupus-nephritis-in-mrl-lpr-mice-by-attenuating-the-nlrp3-inflammasome-and-nf%C3%A2-%C3%AE%C2%BAb-signaling-pathway-a-mechanistic-analysis
#11
Feng Huang, Rui-Yun Zhang, Lei Song
Lupus nephritis (LN) is a common complication of systemic lupus erythematosus. The present study aimed to elucidate the protective effect of magnolol (MG) on the progression of LN, via inhibition of key signaling pathways. The results of the present study demonstrated that administration of MG caused inhibition of the activation of NACHT, LRR and PYD domains‑containing protein 3 and interleukin‑1β production. Histopathological analysis confirmed that the vehicle‑treated group exhibited characteristic glomerular disease, which was observed to be suppressed following the administration of MG; a marked decrease in glomerular and vascular lesions was observed compared with the vehicle control...
October 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28760771/diabetic-nephropathy-is-this-an-immune-disorder
#12
REVIEW
Greg H Tesch
Chronic diabetes is associated with metabolic and haemodynamic stresses which can facilitate modifications to DNA, proteins and lipids, induce cellular dysfunction and damage, and stimulate inflammatory and fibrotic responses which lead to various types of renal injury. Approximately 30-40% of patients with diabetes develop nephropathy and this renal injury normally progresses in about a third of patients. Due to the growing incidence of diabetes, diabetic nephropathy is now the main cause of end-stage renal disease (ESRD) worldwide...
August 15, 2017: Clinical Science (1979-)
https://www.readbyqxmd.com/read/28631886/nlrp3-expression-and-urinary-hsp72-in-relation-to-biomarkers-of-inflammation-and-oxidative-stress-in-diabetic-nephropathy-patients
#13
Hemat El-Sayed El-Horany, Rania Nagi Abd-Ellatif, Mona Watany, Yasser M Hafez, Hanaa Ibrahim Okda
Diabetic nephropathy (DN) is one of the major causes of end-stage renal disease. Nod-like receptors nucleotide-binding domain and leucine-rich repeat pyrin-3 domain (NLRP3) inflammasome displays a considerable role in the chronic inflammatory state observed in diabetic patients. Urinary heat shock protein 72 (uHSP72) is a sensitive and specific biomarker for the early detection of acute kidney injury. The aim of this study was to evaluate NLRP3 relative gene expression, its correlation with inflammatory and oxidative stress markers, and to assess the value of uHSP72 in the early detection of DN in type 2 diabetic patients with different degrees of DN...
August 2017: IUBMB Life
https://www.readbyqxmd.com/read/28628921/activation-of-cox-2-mpges-1-pge2-cascade-via-nlrp3-inflammasome-contributes-to-albumin-induced-proximal-tubule-cell-injury
#14
Yibo Zhuang, Fei Zhao, Jing Liang, Xu Deng, Yue Zhang, Guixia Ding, Aihua Zhang, Zhanjun Jia, Songming Huang
BACKGROUND/AIMS: The activation of NOD-like receptor family, pyrin domain containing3 (NLRP3) inflammasome has been shown to be positively correlated with the severity of proteinuria in chronic kidney disease (CKD) patients. Prostaglandin E2 (PGE2), an important inflammatory mediator, is also involved in various kidney injuries. The aim of the present study was to investigate the involvement of NLRP3 inflammasome and PGE2 synthetic pathway in albumin-induced renal tubular injury. METHODS: Murine proximal tubular cells (mPTCs) were treated with albumin to induce cell injury...
2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28614830/expression-of-tlr2-nod1-and-nod2-and-the-nlrp3-inflammasome-in-renal-tubular-epithelial-cells-of-male-versus-female-mice
#15
Sean E DeWolf, Alana A Shigeoka, Andrew Scheinok, Sashi G Kasimsetty, Alexander K Welch, Dianne B McKay
BACKGROUND: Gender-biased outcomes are associated with acute kidney injury (AKI) and human and animal studies have shown that females are preferentially protected from renal ischemia. However, the reason for this is not known. One clue might lie with pattern recognition receptors (PRRs), which are triggers of ischemic injury when ligated by molecules in the ischemic milieu. Several PRR families are expressed by renal tubular epithelial cells (RTEs) and incite cell death signaling and production of pro-inflammatory molecules...
2017: Nephron
https://www.readbyqxmd.com/read/28588189/metabolic-injury-induced-nlrp3-inflammasome-activation-dampens-phospholipid-degradation
#16
Elena Rampanelli, Evelyn Orsó, Peter Ochodnicky, Gerhard Liebisch, Pieter J Bakker, Nike Claessen, Loes M Butter, Marius A van den Bergh Weerman, Sandrine Florquin, Gerd Schmitz, Jaklien C Leemans
The collateral effects of obesity/metabolic syndrome include inflammation and renal function decline. As renal disease in obesity can occur independently of hypertension and diabetes, other yet undefined causal pathological pathways must be present. Our study elucidate novel pathological pathways of metabolic renal injury through LDL-induced lipotoxicity and metainflammation. Our in vitro and in vivo analysis revealed a direct lipotoxic effect of metabolic overloading on tubular renal cells through a multifaceted mechanism that includes intralysosomal lipid amassing, lysosomal dysfunction, oxidative stress, and tubular dysfunction...
June 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28459555/ameliorative-effect-of-ecklonia-cava-polyphenol-extract-on-renal-inflammation-associated-with-aberrant-energy-metabolism-and-oxidative-stress-in-high-fat-diet-induced-obese-mice
#17
Hyeyoon Eo, Ji Eun Park, You-Jin Jeon, Yunsook Lim
Immoderate fat accumulation causes both oxidative stress and inflammation, which can induce kidney damage in obesity. Previously, Ecklonia cava has shown anti-inflammatory and antioxidative effects. Our group aimed to investigate whether E. cava polyphenol extract (ECPE) improves renal damage in high fat diet (HFD)-induced obese mice through regulation of not only energy metabolism but also oxidative stress and inflammation. After obesity induction by HFD, the mice were treated with different dosages of ECPE (100 or 500 mg/kg/day) by gavage for 12 weeks...
May 17, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28437591/fluorofenidone-attenuates-il-1%C3%AE-production-by-interacting-with-nlrp3-inflammasome-in-unilateral-ureteral-obstruction
#18
Linfeng Zheng, Jin Zhang, Xiangning Yuan, Juan Tang, Sisi Qiu, Zhangzhe Peng, Qiongjing Yuan, Yanyun Xie, Wenjuan Mei, Yiting Tang, Jie Meng, Gaoyun Hu, Lijian Tao
AIM: We explored whether Fluorofenidone reduced IL-1β production by interacting with NLRP3 inflammasome in unilateral ureteral obstruction (UUO). METHODS: UUO rats were treated with Fluorofenidone (500 mg · kg · d) for 3, 7 days. Morphologic analysis and leukocytes infiltration were assessed in ligated kidneys. Furthermore, plasmids of NLRP3, ASC, pro-Caspase-1, pro-IL-1β were co-transfected into 293 T cells, and then treated with Fluorofenidone (2 mM)...
April 24, 2017: Nephrology
https://www.readbyqxmd.com/read/28428988/polydatin-attenuates-potassium-oxonate-induced-hyperuricemia-and-kidney-inflammation-by-inhibiting-nf-%C3%AE%C2%BAb-nlrp3-inflammasome-activation-via-the-ampk-sirt1-pathway
#19
Lvyi Chen, Zhou Lan
This study was designed to investigate the effects of polydatin (PLD) on potassium oxonate-induced hyperuricemic rats. Hyperuricemic rats were treated with potassium oxonate (250 mg kg(-1)) intragastrically for 7 days, and polydatin (25, 50 mg kg(-1)) or allopurinol (5 mg kg(-1)) was administered to the rats 1 h after the potassium oxonate exposure. Polydatin administration decreased the levels of uric acid and creatinine in serum and urine, leading to inhibition of pro-inflammatory cytokine production in serum and kidney...
May 24, 2017: Food & Function
https://www.readbyqxmd.com/read/28404641/nlrp3-inflammasome-as-a-novel-target-for-docosahexaenoic-acid-metabolites-to-abrogate-glomerular-injury
#20
Guangbi Li, Zhida Chen, Owais M Bhat, Qinghua Zhang, Justine M Abais-Battad, Sabena M Conley, Joseph K Ritter, Pin-Lan Li
The nucleotide-binding oligomerization domain-like receptor containing pyrin domain 3 (NLRP3) inflammasome has been implicated in podocyte injury and glomerular sclerosis during hyperhomocysteinemia (hHcys). However, it remains unclear whether the NLRP3 inflammasome can be a therapeutic target for treatment of hHcys-induced kidney injury. Given that DHA metabolites-resolvins have potent anti-inflammatory effects, the present study tested whether the prototype, resolvin D1 (RvD1), and 17S-hydroxy DHA (17S-HDHA), an intermediate product, abrogate hHcys-induced podocyte injury by targeting the NLRP3 inflammasome...
June 2017: Journal of Lipid Research
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