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Ceramide interleukin

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https://www.readbyqxmd.com/read/30031388/%C3%AE-tocotrienol-feeding-modulates-gene-expression-of-eif2-mtor-protein-ubiquitination-through-multiple-signaling-pathways-in-chronic-hepatitis-c-patients
#1
Asaf A Qureshi, Dilshad A Khan, Shahida Mushtaq, Shui Qing Ye, Min Xiong, Nilofer Qureshi
BACKGROUND: δ-Tocotrienol is a naturally occurring proteasome inhibitor, which has the capacity to inhibit proliferation and induce apoptosis in several cancer cells obtained from several organs of humans, and other cancer cell lines. Moreover, results of plasma total mRNAs after δ-tocotrienol feeding to hepatitis C patients revealed significant inhibition in the expression of pro-inflammatory cytokines (TNF-α, VCAM1, proteasome subunits) and induction in the expression of ICAM1 and IFN-γ after post-treatment...
July 21, 2018: Lipids in Health and Disease
https://www.readbyqxmd.com/read/29956204/pathogenesis-of-nash-how-metabolic-complications-of-overnutrition-favour-lipotoxicity-and-pro-inflammatory-fatty-liver-disease
#2
Geoffrey C Farrell, Fahrettin Haczeyni, Shivakumar Chitturi
Overnutrition, usually with obesity and genetic predisposition, lead to insulin resistance, which is an invariable accompaniment of nonalcoholic fatty liver disease (NAFLD). The associated metabolic abnormalities, pre- or established diabetes, hypertension and atherogenic dyslipidemia (clustered as metabolic syndrome) tend to be worse for nonalcoholic steatohepatitis (NASH), revealing it as part of a continuum of metabolic pathogenesis. The origins of hepatocellular injury and lobular inflammation which distinguish NASH from simple steatosis have intrigued investigators, but it is now widely accepted that NASH results from liver lipotoxicity...
2018: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29876372/fibroblast-and-keratinocyte-gene-expression-following-exposure-to-the-extracts-of-holy-basil-plant-ocimum-tenuiflorum-malabar-nut-plant-justicia-adhatoda-and-emblic-myrobalan-plant-phyllanthus-emblica
#3
Takao Someya, Katsura Sano, Kotaro Hara, Yoshimasa Sagane, Toshihiro Watanabe, R G S Wijesekara
This data article provides gene expression profiles, determined by using real-time PCR, of fibroblasts and keratinocytes treated with 0.01% and 0.001% extracts of holy basil plant ( Ocimum tenuiflorum ), sri lankan local name "maduruthala", 0.1% and 0.01% extracts of malabar nut plant ( Justicia adhatoda ), sri lankan local name "adayhoda" and 0.003% and 0.001% extracts of emblic myrobalan plant ( Phyllanthus emblica ), sri lankan local name "nelli", harvested in Sri Lanka. For fibroblasts, the dataset includes expression profiles for genes encoding hyaluronan synthase 1 (HAS1), hyaluronan synthase 2 (HAS2), hyaluronidase-1 (HYAL1), hyaluronidase-2 (HYAL2), versican, aggrecan, CD44, collagen, type I, alpha 1 (COL1A1), collagen, type III, alpha 1 (COL3A1), collagen, type VII, alpha 1 (COL7A1), matrix metalloproteinase 1 (MMP1), acid ceramidase, basic fibroblast growth factor (bFGF), fibroblast growth factor-7 (FGF7), vascular endothelial growth factor (VEGF), interleukin-1 alpha (IL-1α), cyclooxygenase-2 (cox2), transforming growth factor beta (TGF-β), and aquaporin 3 (AQP3)...
April 2018: Data in Brief
https://www.readbyqxmd.com/read/29709917/knockout-of-ceramide-kinase-aggravates-pathological-and-lethal-responses-in-mice-with-experimental-colitis
#4
Satomi Suzuki, Ai Tanaka, Hiroyuki Nakamura, Toshihiko Murayama
Sphingolipids and their metabolic enzymes are implicated in ulcerative colitis. Ceramide kinase (CerK) catalyzes the phosphorylation of ceramide to ceramide-1-phosphate (C1P). Previous studies showed the activation of CerK by the pro-inflammatory cytokine interleukin-1β, the C1P-induced up-regulation of prostanoids exerting protective effects against colitis, and the C1P-induced down-regulation of the pro-inflammatory cytokine tumor necrosis factor-α. In order to elucidate CerK/C1P functions in colitis, we examined the severity of dextran sodium sulfate (DSS)-induced colitis in wild-type (WT) and CerK deletion (CerK(-/-) ) mice...
2018: Biological & Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/29472233/novel-role-of-il-interleukin-1%C3%AE-in-neutrophil-extracellular-trap-formation-and-abdominal-aortic-aneurysms
#5
Akshaya K Meher, Michael Spinosa, John P Davis, Nicolas Pope, Victor E Laubach, Gang Su, Vlad Serbulea, Norbert Leitinger, Gorav Ailawadi, Gilbert R Upchurch
OBJECTIVE: Neutrophils promote experimental abdominal aortic aneurysm (AAA) formation via a mechanism that is independent from MMPs (matrix metalloproteinases). Recently, we reported a dominant role of IL (interleukin)-1β in the formation of murine experimental AAAs. Here, the hypothesis that IL-1β-induced neutrophil extracellular trap formation (NETosis) promotes AAA was tested. APPROACH AND RESULTS: NETs were identified through colocalized staining of neutrophil, Cit-H3 (citrullinated histone H3), and DNA, using immunohistochemistry...
April 2018: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/29368763/physical-and-compositional-analysis-of-differently-cultured-3d-human-skin-equivalents-by-confocal-raman-spectroscopy
#6
Y Dancik, G Sriram, B Rout, Y Zou, M Bigliardi-Qi, P L Bigliardi
Three-dimensional skin equivalents are increasingly gaining acceptance as non-animal based experimental models of human skin. They are particularly suited to studying differences in physical and compositional properties of normal and diseased skin and their impact on the skin's barrier function. Typically, a culture protocol yielding a model of normal skin is modified to create a model simulating a pathology. Skin layer thicknesses and lipid/protein contents are compared using methods that are invasive, precluding further experiments on the same replicates, and which may be prone to artefacts...
January 25, 2018: Analyst
https://www.readbyqxmd.com/read/29342149/low-expression-of-il-18-and-il-18-receptor-in-human-skeletal-muscle-is-associated-with-systemic-and-intramuscular-lipid-metabolism-role-of-hiv-lipodystrophy
#7
Birgitte Lindegaard, Thine Hvid, Helene Wolsk Mygind, Ole Hartvig Mortensen, Thomas Grøndal, Julie Abildgaard, Jan Gerstoft, Bente Klarlund Pedersen, Marcin Baranowski
INTRODUCTION: Interleukin (IL)-18 is involved in regulation of lipid and glucose metabolism. Mice lacking whole-body IL-18 signalling are prone to develop weight gain and insulin resistance, a phenotype which is associated with impaired fat oxidation and ectopic skeletal muscle lipid deposition. IL-18 mRNA is expressed in human skeletal muscle but a role for IL-18 in muscle has not been identified. Patients with HIV-infection and lipodystrophy (LD) are characterized by lipid and glucose disturbances and increased levels of circulating IL-18...
2018: PloS One
https://www.readbyqxmd.com/read/29322079/fibroblast-and-keratinocyte-gene-expression-following-exposure-to-extracts-of-neem-plant-azadirachta-indica
#8
Takao Someya, Katsura Sano, Kotaro Hara, Yoshimasa Sagane, Toshihiro Watanabe, R G S Wijesekara
This data article provides gene expression profiles, determined by using real-time PCR, of fibroblasts and keratinocytes treated with 0.01% and 0.001% extracts of neem plant (Azadirachta indica), local name "Kohomba" in Sri Lanka, harvested in Sri Lanka. For fibroblasts, the dataset includes expression profiles for genes encoding hyaluronan synthase 1 (HAS1), hyaluronan synthase 2 (HAS2), hyaluronidase-1 (HYAL1), hyaluronidase-2 (HYAL2), versican, aggrecan, CD44, collagen, type I, alpha 1 (COL1A1), collagen, type III, alpha 1 (COL3A1), collagen, type VII, alpha 1 (COL7A1), matrix metalloproteinase 1 (MMP1), acid ceramidase, basic fibroblast growth factor (bFGF), fibroblast growth factor-7 (FGF7), vascular endothelial growth factor (VEGF), interleukin-1 alpha (IL-1α), cyclooxygenase-2 (cox2), transforming growth factor beta (TGF-β), and aquaporin 3 (AQP3)...
February 2018: Data in Brief
https://www.readbyqxmd.com/read/29164996/cptp-a-sphingolipid-transfer-protein-that-regulates-autophagy-and-inflammasome-activation
#9
Shrawan Kumar Mishra, Yong-Guang Gao, Yibin Deng, Charles E Chalfant, Edward H Hinchcliffe, Rhoderick E Brown
The macroautophagy/autophagy and inflammasome pathways are linked through their roles in innate immunity and chronic inflammatory disease. Ceramide-1-phosphate (C1P) is a bioactive sphingolipid that regulates pro-inflammatory eicosanoid production. Whether C1P also regulates autophagy and inflammasome assembly/activation is not known. Here we show that CPTP (a protein that traffics C1P from its site of phosphorylation in the trans-Golgi to target membranes) regulates both autophagy and inflammasome activation...
2018: Autophagy
https://www.readbyqxmd.com/read/29069651/staphylococcus-aureus-%C3%AE-toxin-induces-inflammatory-cytokines-via-lysosomal-acid-sphingomyelinase-and-ceramides
#10
Jie Ma, Erich Gulbins, Michael J Edwards, Charles C Caldwell, Martin Fraunholz, Katrin Anne Becker
BACKGROUND/AIMS: Staphylococcus aureus (S. aureus) infections are a major clinical problem and range from mild skin and soft-tissue infections to severe and even lethal infections such as pneumonia, endocarditis, sepsis, osteomyelitis, and toxic shock syndrome. Toxins that are released from S. aureus mediate many of these effects. Here, we aimed to identify molecular mechanisms how α-toxin, a major S. aureus toxin, induces inflammation. METHODS: Macrophages were isolated from the bone marrow of wildtype and acid sphingomyelinase-deficient mice, stimulated with S...
2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28737913/uplc-q-exactive-orbitrap-ms-based-lipidomics-approach-to-characterize-lipid-extracts-from-bee-pollen-and-their-in-vitro-anti-inflammatory-properties
#11
Qiangqiang Li, Xinwen Liang, Liang Zhao, Zhongyin Zhang, Xiaofeng Xue, Kai Wang, Liming Wu
Bee pollen (BP) is collected by honeybees from flower pollen mixed with nectar and its secretions with extensive nutritional and therapeutic properties. Lipids are known to be critical contributors for the therapeutic effects of BP and vary depending on different plant sources; however, lipid profiles of BP are not available. Here, an UPLC-Q-Exactive Orbitrap/MS method was established for comprehensive lipidomics analysis of BP derived from three major nectar plants (Brassica campestris L., Camellia sinensis L...
August 16, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28709564/current-and-emerging-concepts-in-atopic-dermatitis-pathogenesis
#12
Marguerite Sullivan, Nanette B Silverberg
Atopic dermatitis is a common skin disorder with a complex, evolving pathogenesis. Research on the pathogenesis has shifted from focusing primarily on generalized immune system abnormalities in T helper 1/T helper 2 (Th 1/Th 2) activity to more targeted immune and skin barrier abnormalities contributing to the overall phenotype. Specific signaling pathways recently implicated in atopic dermatitis include production of interleukin (IL) 4 and IL-13, which promote immunoglobulin E production, Th 17 and Th 22 cells, and production of cytokines...
July 2017: Clinics in Dermatology
https://www.readbyqxmd.com/read/28679588/adipocyte-mtorc1-deficiency-promotes-adipose-tissue-inflammation-and-nlrp3-inflammasome-activation-via-oxidative-stress-and-de-novo-ceramide-synthesis
#13
Patricia Chimin, Maynara L Andrade, Thiago Belchior, Vivian A Paschoal, Juliana Magdalon, Alex S Yamashita, Érique Castro, Angela Castoldi, Adriano B Chaves-Filho, Marcos Y Yoshinaga, Sayuri Miyamoto, Niels O Câmara, William T Festuccia
Mechanistic target of rapamycin complex (mTORC)1 activity is increased in adipose tissue of obese insulin-resistant mice, but its role in the regulation of tissue inflammation is unknown. Herein, we investigated the effects of adipocyte mTORC1 deficiency on adipose tissue inflammation and glucose homeostasis. For this, mice with adipocyte raptor deletion and controls fed a chow or a high-fat diet were evaluated for body mass, adiposity, glucose homeostasis, and adipose tissue inflammation. Despite reducing adiposity, adipocyte mTORC1 deficiency promoted hepatic steatosis, insulin resistance, and adipose tissue inflammation (increased infiltration of macrophages, neutrophils, and B lymphocytes; crown-like structure density; TNF-α, interleukin (IL)-6, and monocyte chemoattractant protein 1 expression; IL-1β protein content; lipid peroxidation; and de novo ceramide synthesis)...
September 2017: Journal of Lipid Research
https://www.readbyqxmd.com/read/28379166/phospholipase-d-from-loxosceles-laeta-spider-venom-induces-il-6-il-8-cxcl1-gro-%C3%AE-and-ccl2-mcp-1-production-in-human-skin-fibroblasts-and-stimulates-monocytes-migration
#14
José M Rojas, Tomás Arán-Sekul, Emmanuel Cortés, Romina Jaldín, Kely Ordenes, Patricio R Orrego, Jorge González, Jorge E Araya, Alejandro Catalán
Cutaneous loxoscelism envenomation by Loxosceles spiders is characterized by the development of a dermonecrotic lesion, strong inflammatory response, the production of pro-inflammatory mediators, and leukocyte migration to the bite site. The role of phospholipase D (PLD) from Loxosceles in the recruitment and migration of monocytes to the envenomation site has not yet been described. This study reports on the expression and production profiles of cytokines and chemokines in human skin fibroblasts treated with catalytically active and inactive recombinant PLDs from Loxosceles laeta (rLlPLD) and lipid inflammatory mediators ceramide 1-phosphate (C1P) and lysophosphatidic acid (LPA), and the evaluation of their roles in monocyte migration...
April 5, 2017: Toxins
https://www.readbyqxmd.com/read/28035360/hepatic-inflammatory-cytokine-production-can-be-regulated-by-modulating-sphingomyelinase-and-ceramide-synthase-6
#15
Min Hee Kim, Hee Kyung Ahn, Eun-Ji Lee, Su-Jeong Kim, Ye-Ryung Kim, Joo-Won Park, Woo-Jae Park
Chronic inflammation is associated with the pathogenesis of type 2 diabetes and diabetic complications, and palmitate has been nominated as a candidate for the molecular link between these disorders. Recently, a crucial role of ceramide in inflammation and metabolic diseases has been reported. Therefore, in this study, we investigated whether ceramide formation is involved in palmitate‑induced hepatic inflammation in vitro and in vivo. Ceramide can be generated either by the de novo pathway or by sphingomyelin degradation, and six different ceramide synthases (CerS) determine the specific acyl chain length of ceramide in mammals...
February 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28007783/early-pqq-supplementation-has-persistent-long-term-protective-effects-on-developmental-programming-of-hepatic-lipotoxicity-and-inflammation-in-obese-mice
#16
Karen R Jonscher, Michael S Stewart, Alba Alfonso-Garcia, Brian C DeFelice, Xiaoxin X Wang, Yuhuan Luo, Moshe Levi, Margaret J R Heerwagen, Rachel C Janssen, Becky A de la Houssaye, Ellen Wiitala, Garrett Florey, Raleigh L Jonscher, Eric O Potma, Oliver Fiehn, Jacob E Friedman
Nonalcoholic fatty liver disease (NAFLD) is widespread in adults and children. Early exposure to maternal obesity or Western-style diet (WD) increases steatosis and oxidative stress in fetal liver and is associated with lifetime disease risk in the offspring. Pyrroloquinoline quinone (PQQ) is a natural antioxidant found in soil, enriched in human breast milk, and essential for development in mammals. We investigated whether a supplemental dose of PQQ, provided prenatally in a mouse model of diet-induced obesity during pregnancy, could protect obese offspring from progression of NAFLD...
April 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/27701117/role-of-acid-sphingomyelinase-and-il-6-as-mediators-of-endotoxin-induced-pulmonary-vascular-dysfunction
#17
Rachele Pandolfi, Bianca Barreira, Enrique Moreno, Victor Lara-Acedo, Daniel Morales-Cano, Andrea Martínez-Ramas, Beatriz de Olaiz Navarro, Raquel Herrero, José Ángel Lorente, Ángel Cogolludo, Francisco Pérez-Vizcaíno, Laura Moreno
BACKGROUND: Pulmonary hypertension (PH) is frequently observed in patients with acute respiratory distress syndrome (ARDS) and it is associated with an increased risk of mortality. Both acid sphingomyelinase (aSMase) activity and interleukin 6 (IL-6) levels are increased in patients with sepsis and correlate with worst outcomes, but their role in pulmonary vascular dysfunction pathogenesis has not yet been elucidated. Therefore, the aim of this study was to determine the potential contribution of aSMase and IL-6 in the pulmonary vascular dysfunction induced by lipopolysaccharide (LPS)...
May 2017: Thorax
https://www.readbyqxmd.com/read/27584583/stratum-corneum-tape-stripping-monitoring-of-inflammatory-mediators-in-atopic-dermatitis-patients-using-topical-therapy
#18
Sjors A Koppes, Richard Brans, Suzana Ljubojevic Hadzavdic, Monique H W Frings-Dresen, Thomas Rustemeyer, Sanja Kezic
OBJECTIVE: The aim of this study was to explore the tape strip sampling technique in the assessment of stratum corneum levels of inflammatory mediators in a clinical trial setting. METHODS: Thirty-eight inflammatory mediators were analyzed by a multiplex-assay in the stratum corneum, collected by adhesive tapes before and after 6 weeks of therapy, in mild and moderate atopic dermatitis (AD) patients (n = 90). Treatment was a ceramide- and magnesium-containing emollient...
2016: International Archives of Allergy and Immunology
https://www.readbyqxmd.com/read/27556861/inhibition-of-interleukin-1%C3%AE-induced-endothelial-tissue-factor-expression-by-the-synthetic-cannabinoid-win-55-212-2
#19
Antje Scholl, Igor Ivanov, Burkhard Hinz
The role of cannabinoids in thrombosis remains controversial. In view of the primary importance of tissue factor (TF) in blood coagulation and its involvement in the pathology of several cardiovascular, inflammatory and neoplastic diseases, a regulation of this initial procoagulant signal seems to be of particular interest. Using human umbilical vein endothelial cells (HUVEC) the present study investigated the impact of the synthetic cannabinoid WIN 55,212-2 on interleukin (IL)-1β-induced TF expression and activity...
September 20, 2016: Oncotarget
https://www.readbyqxmd.com/read/27271601/mechanism-of-action-and-applications-of-interleukin-24-in-immunotherapy
#20
REVIEW
Leah Persaud, Dayenny De Jesus, Oliver Brannigan, Maria Richiez-Paredes, Jeannette Huaman, Giselle Alvarado, Linda Riker, Gissete Mendez, Jordan Dejoie, Moira Sauane
Interleukin 24 (IL-24) is an important pleiotropic immunoregulatory cytokine, whose gene is located in human chromosome 1q32-33. IL-24's signaling pathways have diverse biological functions related to cell differentiation, proliferation, development, apoptosis, and inflammation, placing it at the center of an active area of research. IL-24 is well known for its apoptotic effect in cancer cells while having no such effect on normal cells. IL-24 can also be secreted by both immune and non-immune cells. Downstream effects of IL-24, after binding to the IL-20 receptor, can occur dependently or independently of the JAK/STAT signal transduction pathway, which is classically involved in cytokine-mediated activities...
June 2, 2016: International Journal of Molecular Sciences
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