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https://www.readbyqxmd.com/read/28211965/first-synthesis-of-an-oridonin-conjugated-iridium-iii-complex-for-the-intracellular-tracking-of-nf-%C3%AE%C2%BAb-in-living-cells
#1
Wanhe Wang, Chao Yang, Sheng Lin, Kasipandi Vellaisamy, Guodong Li, Weihong Tan, Chung-Hang Leung, Dik-Lung Ma
NF-κB is a critical transcription factor that plays an important role in mediating inflammation, the immune response, and cell proliferation. The activation of NF-κB leads to an enhancement of proinflammatory mediator expression, which is implicated in the pathogenesis of a variety of diseases. Therefore, methods that allow the intracellular tracking of NF-κB are particularly attractive as they can provide information regarding the pathways or stimulation responses that are involved in the activation of NF-κB...
February 17, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28208611/betulinic-acid-mediated-apoptosis-in-human-prostate-cancer-cells-involves-p53-and-nuclear-factor-kappa-b-nf-%C3%AE%C2%BAb-pathways
#2
Eswar Shankar, Ailin Zhang, Daniel Franco, Sanjay Gupta
Defects in p53 and nuclear factor-kappa B (NF-κB) signaling pathways are frequently observed in the initiation and development of various human malignancies, including prostate cancer. Clinical studies demonstrate higher expression of NF-κB/p65/RelA, NF-κB/p50/RelB, and cRel as well as downregulation of the p53 network in primary prostate cancer specimens and in metastatic tumors. Betulinic acid (BA), is a triterpenoid that has been reported to be an effective inducer of apoptosis through modification of several signaling pathways...
February 10, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28204810/htlv-1-basic-leucine-zipper-factor-downregulates-cyclin%C3%A2-d1-expression-via-interactions-with-nf-%C3%AE%C2%BAb
#3
Yunyun Ma, Bo Zhang, Dong Wang, Lili Qian, Xianmei Song, Xueyin Wang, Chaokuan Yang, Guoqiang Zhao
Human T cell leukemia virus type 1 (HTLV-1) is an oncogenic retrovirus. It can cause adult T cell leukemia (ATL) and other diseases. The HTLV-1 basic leucine zipper (bZIP) factor (HBZ), which is encoded by the minus-strand of the provirus, is expressed in all cases of ATL and involved in T cell proliferation. However, the exact mechanism underlying its growth-promoting activity is poorly understood. Herein, we demonstrated that HBZ suppressed cyclin D1 expression by inhibiting the nuclear factor (NF)-κB signaling pathway...
March 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28198528/the-expression-of-inhibitor-of-nuclear-factor-kappa-b-kinase-epsilon-ikk%C3%AE%C2%B5-in-human-aortic-aneurysm
#4
Leiyang Zhang, Lei Wang, Wen Chen, Yueyue Xu, Liming Wang, Reinard Iskandar, Yifei Wang, Xin Chen
BACKGROUND: Aortic aneurysm (AA) is one of the most common causes of sudden death among elderly people. Although AA can be detected by non-invasive imaging techniques, there are no pharmacological treatments currently available to prevent progression at any stage of the disease. In this study we will explore the expression of IKKε in AA and its potential underlying molecular mechanism in AA. Material s and methods: Human aortic tissue was taken from 14 patients who underwent surgical repair of AA for the AA group and another 11 patients with normal aorta who underwent aortic valve replacement surgery for the control group...
February 15, 2017: Folia Morphologica (Warsz)
https://www.readbyqxmd.com/read/28197857/diallyl-disulfide-suppresses-the-inflammation-and-apoptosis-resistance-induced-by-dca-through-ros-and-the-nf-%C3%AE%C2%BAb-signaling-pathway-in-human-barrett-s-epithelial-cells
#5
Cheng Feng, Yumei Luo, Yuanyuan Nian, Dong Liu, Xiaoran Yin, Jing Wu, Jia Di, Rong Zhang, Jun Zhang
Barrett's esophagus (BE) is generally accepted as the only precursor to esophageal adenocarcinoma (EAC). Deoxycholic acid (DCA)-induced inflammation and apoptotic resistance play an important role in the carcinogenesis and progression from BE to EAC. Diallyl disulfide (DADS) is a garlic-derived natural organosulfur compound. This study investigated whether DADS has chemopreventive effects against BE and the potentially related signaling pathway. BAR-T cells were treated with DCA in the presence or absence of DADS...
February 14, 2017: Inflammation
https://www.readbyqxmd.com/read/28196430/first-in-human-trial-of-a-type-i-positive-allosteric-modulator-of-alpha7-nicotinic-acetylcholine-receptors-pharmacokinetics-safety-and-evidence-for-neurocognitive-effect-of-avl-3288
#6
Kelvin W Gee, Ann Olincy, Richard Kanner, Lynn Johnson, Derk Hogenkamp, Josette Harris, Minhtam Tran, Stephen A Edmonds, William Sauer, Ryan Yoshimura, Timothy Johnstone, Robert Freedman
Type I positive allosteric modulators (PAMs) of the alpha7-nicotinic receptor enhance its cholinergic activation while preserving the spatiotemporal features of synaptic transmission and the receptor's characteristic rapid desensitization kinetics. Alpha7-nicotinic receptor agonists have shown promise for improving cognition in schizophrenia, but longer-term trials have been disappointing. Therefore, the type I PAM AVL-3288 was evaluated for safety and preliminary evidence of neurocognitive effect in healthy human subjects...
February 1, 2017: Journal of Psychopharmacology
https://www.readbyqxmd.com/read/28194259/anti-inflammatory-activity-of-a-sulfated-polysaccharide-isolated-from-an-enzymatic-digest-of-brown-seaweed-sargassum-horneri-in-raw-264-7-cells
#7
Kalu Kapuge Asanka Sanjeewa, Ilekkuttige Priyan Shanura Fernando, Eun-A Kim, Ginnae Ahn, Youngheun Jee, You-Jin Jeon
BACKGROUND/OBJECTIVES: Sargassum horneri is an edible brown alga that grows in the subtidal zone as an annual species along the coasts of South Korea, China, and Japan. Recently, an extreme amount of S. horneri moved into the coasts of Jeju Island from the east coast of China, which made huge economic and environmental loss to the Jeju Island. Thus, utilization of this biomass becomes a big issue with the local authorities. Therefore, the present study was performed to evaluate the anti-inflammatory potential of crude polysaccharides (CPs) extracted from S...
February 2017: Nutrition Research and Practice
https://www.readbyqxmd.com/read/28181923/variation-in-cyp2a6-and-nicotine-metabolism-among-two-american-indian-tribal-groups-differing-in-smoking-patterns-and-risk-for-tobacco-related-cancer
#8
Julie-Anne Tanner, Jeffrey A Henderson, Dedra Buchwald, Barbara V Howard, Patricia Nez Henderson, Rachel F Tyndale
OBJECTIVE: The Northern Plains (NP) and Southwest (SW) American Indian populations differ in their smoking patterns and lung cancer incidence. We aimed to compare CYP2A6 genetic variation and CYP2A6 enzyme activity (representative of the rate of nicotine metabolism) between the two tribal populations as these have previously been associated with differences in smoking, quitting, and lung cancer risk. PARTICIPANTS AND METHODS: American Indians (N=636) were recruited from two different tribal populations (NP in South Dakota, SW in Arizona) as part of a study carried out as part of the Collaborative to Improve Native Cancer Outcomes P50 Project...
February 8, 2017: Pharmacogenetics and Genomics
https://www.readbyqxmd.com/read/28177667/ursolic-acid-suppresses-leptin-induced-cell-proliferation-in-rat-vascular-smooth-muscle-cells
#9
Ya-Mei Yu, Chiang-Chin Tsai, Yu-Wen Tzeng, Weng-Cheng Chang, Su-Yin Chiang, Ming-Fen Lee
Accumulating lines of evidence indicate that high leptin levels are associated with adverse cardiovascular health in obese individuals. Proatherogenic effects of leptin include endothelial cell activation, vascular smooth muscle cell proliferation and migration. Ursolic acid (UA) has been reported to exhibit multiple biological effects including antioxidant and anti-inflammatory properties. In this study, we investigated the effect of UA on leptin-induced biological responses in rat vascular smooth muscle cells (VSMCs)...
January 29, 2017: Canadian Journal of Physiology and Pharmacology
https://www.readbyqxmd.com/read/28176172/evaluation-of-retinal-ganglion-cell-function-after-intraocular-pressure-reduction-measured-by-pattern-electroretinogram-in-patients-with-primary-open-angle-glaucoma
#10
Joanna Karaśkiewicz, Krzysztof Penkala, Maciej Mularczyk, Wojciech Lubiński
BACKGROUND: To evaluate retinal ganglion cell (RGC) function after intraocular pressure (IOP) reduction measured by pattern electroretinogram (PERG) in patients with newly diagnosed, non-treated preperimetric and early stages of primary open-angle glaucoma (POAG). METHODS: Twenty-four eyes from 24 patients with POAG: 11 eyes with preperimetric glaucoma and 13 eyes with early glaucoma received Ganfort (®) (bimatoprost + timolol) once a day for a period of 1 month...
February 7, 2017: Documenta Ophthalmologica. Advances in Ophthalmology
https://www.readbyqxmd.com/read/28155253/characterization-of-key-transcription-factors-as-molecular-signatures-of-hpv-positive-and-hpv-negative-oral-cancers
#11
Gaurav Verma, Kanchan Vishnoi, Abhishek Tyagi, Mohit Jadli, Tejveer Singh, Ankit Goel, Ankita Sharma, Kiran Agarwal, Subhash Chandra Prasad, Durgatosh Pandey, Shashi Sharma, Ravi Mehrotra, Sukh Mahendra Singh, Alok Chandra Bharti
Prior studies established constitutively active AP-1, NF-κB, and STAT3 signaling in oral cancer. Differential expression/activation of specific members of these transcription factors has been documented in HPV-positive oral lesions that respond better to therapy. We performed a comprehensive analysis of differentially expressed, transcriptionally active members of these pivotal signaling mediators to develop specific signatures of HPV-positive and HPV-negative oral lesions by immunohistochemical method that is applicable in low-resource settings...
February 3, 2017: Cancer Medicine
https://www.readbyqxmd.com/read/28151474/lincrna-gm4419-knockdown-ameliorates-nf-%C3%AE%C2%BAb-nlrp3-inflammasome-mediated-inflammation-in-diabetic-nephropathy
#12
Hong Yi, Rui Peng, Lu-Yu Zhang, Yan Sun, Hui-Min Peng, Han-Deng Liu, Li-Juan Yu, Ai-Ling Li, Ya-Juan Zhang, Wen-Hao Jiang, Zheng Zhang
Diabetic nephropathy (DN) as the primary cause of end-stage kidney disease is a common complication of diabetes. Recent researches have shown the activation of nuclear factor kappa light-chain enhancer of activated B cells (NF-κB) and NACHT, LRR and PYD domain-containing protein 3 (NLRP3) inflammasome are associated with inflammation in the progression of DN, but the exact mechanism is unclear. Long noncoding RNAs (lncRNAs) have roles in the development of many diseases including DN. However, the relationship between lncRNAs and inflammation in DN remains largely unknown...
February 2, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28132781/inhibitory-effect-of-punicalagin-on-lipopolysaccharide-induced-neuroinflammation-oxidative-stress-and-memory-impairment-via-inhibition-of-nuclear-factor-kappab
#13
Young Eun Kim, Chul Ju Hwang, Hee Pom Lee, Chun Sik Kim, Dong Ju Son, Young Wan Ham, Mats Hellström, Sang-Bae Han, Hee Sik Kim, Eun Kyung Park, Jin Tae Hong
Neuroinflammation is significant in the pathogenesis and development of Alzheimer's disease (AD). Previously, we showed lipopolysaccharide (LPS)-induced neuroinflammation caused memory impairment. We investigated the possible preventive effects of punicalagin (PUN), a component of pomegranate, on memory deficiency caused by LPS, along with the fundamental mechanisms. LPS-treated cultured astrocytes and microglial BV-2 cells were investigated for anti-neuroinflammatory effects of PUN. PUN (1.5 mg/kg) ameliorates LPS (250 μg/kg daily 7 times)-induced memory impairment as well as prevents the LPS-induced expression of inflammatory proteins...
January 26, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28128691/nadh-fluorescence-imaging-and-the-histological-impact-of-cortical-spreading-depolarization-during-the-acute-phase-of-subarachnoid-hemorrhage-in-rats
#14
Tomohisa Shimizu, Tomohito Hishikawa, Shingo Nishihiro, Yukei Shinji, Yuji Takasugi, Jun Haruma, Masafumi Hiramatsu, Hirokazu Kawase, Sachiko Sato, Ryoichi Mizoue, Yoshimasa Takeda, Kenji Sugiu, Hiroshi Morimatsu, Isao Date
OBJECTIVE Although cortical spreading depolarization (CSD) has been observed during the early phase of subarachnoid hemorrhage (SAH) in clinical settings, the pathogenicity of CSD is unclear. The aim of this study is to elucidate the effects of loss of membrane potential on neuronal damage during the acute phase of SAH. METHODS Twenty-four rats were subjected to SAH by the perforation method. The propagation of depolarization in the brain cortex was examined by using electrodes to monitor 2 direct-current (DC) potentials and obtaining NADH (reduced nicotinamide adenine dinucleotide) fluorescence images while exposing the parietal-temporal cortex to ultraviolet light...
January 27, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28123844/targeting-nf-%C3%AE%C2%BAb-ap-2%C3%AE-signaling-to-enhance-antitumor-activity-of-cisplatin-by-melatonin-in-hepatocellular-carcinoma-cells
#15
Jiaojiao Hao, Zhenglin Li, Changlin Zhang, Wendan Yu, Zhipeng Tang, Yixin Li, Xu Feng, Yue Gao, Quentin Liu, Wenlin Huang, Wei Guo, Wuguo Deng
Cisplatin is a common chemotherapeutic drug for cancer treatment, but its effect is limited because of its cytotoxicity and chemoresistance. The combinational use of cisplatin with some natural compounds has provided a potential option to improve its effect and lower its side effects in cancer treatment. Here, we investigated the role of melatonin in the regulation of cisplatin-mediated antitumor activity in hepatocellular carcinoma cells. The combined treatment of cisplatin with melatonin significantly inhibited cell proliferation and resulted in a corresponding decrease of the IC50 values of cisplatin in four hepatocellular carcinoma cell lines...
2017: American Journal of Cancer Research
https://www.readbyqxmd.com/read/28123321/in%C3%A2-vitro-antioxidative-and-anti-inflammatory-effects-of-the-compound-k-rich-fraction-biogf1k-prepared-from-panax-ginseng
#16
Muhammad Jahangir Hossen, Yong Deog Hong, Kwang-Soo Baek, Sulgi Yoo, Yo Han Hong, Ji Hye Kim, Jeong-Oog Lee, Donghyun Kim, Junseong Park, Jae Youl Cho
BACKGROUND: BIOGF1K, a compound K-rich fraction prepared from the root of Panax ginseng, is widely used for cosmetic purposes in Korea. We investigated the functional mechanisms of the anti-inflammatory and antioxidative activities of BIOGF1K by discovering target enzymes through various molecular studies. METHODS: We explored the inhibitory mechanisms of BIOGF1K using lipopolysaccharide-mediated inflammatory responses, reporter gene assays involving overexpression of toll-like receptor adaptor molecules, and immunoblotting analysis...
January 2017: Journal of Ginseng Research
https://www.readbyqxmd.com/read/28121488/the-potential-role-of-an-endotoxin-tolerance-like-mechanism-for-the-anti-inflammatory-effect-of-spirulina-platensis-organic-extract-in-macrophages
#17
Tho X Pham, Young-Ki Park, Minkyung Bae, Ji-Young Lee
Endotoxin tolerance is a phenomenon where exposure of innate immune cells to lipopolysaccharide (LPS) induces a refractory state to subsequent endotoxin exposures. The goal of this study was to investigate if Spirulina platensis organic extract (SPE) induces an endotoxin tolerance-like state. We used splenocytes and peritoneal macrophages from C57BL/6J mice fed a high-fat/high-sucrose (HF/HS) control or a HF/HS diet containing 0.25% (w/w) SPE for 16 weeks for ex vivo LPS stimulation and endotoxin-tolerant (ET) macrophages to evaluate the effects of SPE on endotoxin tolerance...
January 25, 2017: Journal of Medicinal Food
https://www.readbyqxmd.com/read/28115215/damaging-heterozygous-mutations-in-nfkb1-lead-to-diverse-immunological-phenotypes
#18
Meri Kaustio, Emma Haapaniemi, Helka Göös, Timo Hautala, Giljun Park, Jaana Syrjänen, Elisabet Einarsdottir, Biswajyoti Sahu, Sanna Kilpinen, Samuli Rounioja, Christopher L Fogarty, Virpi Glumoff, Petri Kulmala, Shintaro Katayama, Fitsum Tamene, Luca Trotta, Ekaterina Morgunova, Kaarel Krjutškov, Katariina Nurmi, Kari Eklund, Anssi Lagerstedt, Merja Helminen, Timi Martelius, Satu Mustjoki, Jussi Taipale, Janna Saarela, Juha Kere, Markku Varjosalo, Mikko Seppänen
BACKGROUND: The NF-κB signaling pathway is a key regulator of immune responses. Accordingly, mutations in several NF-κB pathway genes cause immunodeficiency. OBJECTIVE: We sought to identify the cause of disease in three unrelated Finnish kindreds with variable symptoms of immunodeficiency and autoinflammation. METHODS: We applied genetic linkage analysis and next generation sequencing, and functional analyses of NFKB1 and its mutated alleles...
January 20, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28111215/noni-morinda-citrifolia-l-fruit-juice-reverses-age-related-decline-in-neural-immune-interactions-in-the-spleens-of-old-f344-rats
#19
Uday P Pratap, Lalgi Hima, Hannah P Priyanka, Srinivasan ThyagaRajan
ETHNOPHARMACOLOGICAL RELEVANCE: Various parts of the tropical plant, Morinda citrifolia L. (Noni), have been widely used in traditional medicine in South and Southeast Asia for several centuries. The therapeutic effects of the noni are believed to be mediated through several phytochemicals such as anthraquinones, iridoid, fatty acid glycosides, alcohols, etc. AIM OF THE STUDY: The aim of the study is to investigate the effects of Morinda citrifolia fruit juice (noni fruit juice; NFJ) on neural-immune interactions through the involvement of intracellular signaling pathways both in vitro and in vivo in the splenic lymphocytes of young and old male F344 rats...
January 19, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28109666/diminished-auditory-sensory-gating-during-active-auditory-verbal-hallucinations
#20
Robert J Thoma, Andrew Meier, Jon Houck, Vincent P Clark, Jeffrey D Lewine, Jessica Turner, Vince Calhoun, Julia Stephen
Auditory sensory gating, assessed in a paired-click paradigm, indicates the extent to which incoming stimuli are filtered, or "gated", in auditory cortex. Gating is typically computed as the ratio of the peak amplitude of the event related potential (ERP) to a second click (S2) divided by the peak amplitude of the ERP to a first click (S1). Higher gating ratios are purportedly indicative of incomplete suppression of S2 and considered to represent sensory processing dysfunction. In schizophrenia, hallucination severity is positively correlated with gating ratios, and it was hypothesized that a failure of sensory control processes early in auditory sensation (gating) may represent a larger system failure within the auditory data stream; resulting in auditory verbal hallucinations (AVH)...
January 18, 2017: Schizophrenia Research
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