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https://www.readbyqxmd.com/read/28630457/how-impaired-efficacy-happened-between-gancao-and-yuanhua-compounds-targets-and-pathways
#1
Jin-Gao Yu, Jianming Guo, Kevin Yue Zhu, Weiwei Tao, Yanyan Chen, Pei Liu, Yongqing Hua, Yuping Tang, Jin-Ao Duan
As recorded in Traditional Chinese Medicine (TCM) theory, Gancao (Glycyrrhizae Radix et Rhizoma) could weaken the pharmacological effect or increase the toxicity of Yuanhua (Genkwa Flos). However, the theory has been suspected due to lack of evidence. Here, we investigate whether Gancao could weaken Yuanhua's diuretic effect, if so, which chemicals and which targets may be involved. Results showed that Yuanhua exerted diuretic effect through down-regulating renal AQP 2, without electrolyte disturbances such as K(+) loss which has been observed as side-effect of most diuretics...
June 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28629431/microrna-330-3p-promotes-cell-invasion-and-metastasis-in-non-small-cell-lung-cancer-through-gria3-by-activating-mapk-erk-signaling-pathway
#2
Chun-Hua Wei, Gang Wu, Qian Cai, Xi-Can Gao, Fan Tong, Rui Zhou, Rui-Guang Zhang, Ji-Hua Dong, Yu Hu, Xiao-Rong Dong
BACKGROUND: Brain metastasis (BM) is associated with poor prognosis in patients with non-small cell lung cancer (NSCLC). Recent studies demonstrated that microRNA-330-3p (miR-330-3p) was involved in NSCLC brain metastasis (BM). However, the exact parts played by miR-330-3p in BM of NSCLC remain unknown. Discovery and development of biomarkers and elucidation of the mechanism underlying BM in NSCLC is critical for effective prophylactic interventions. Here, we evaluated the expression and biological effects of miR-330-3p in NSCLC cells and explored the underlying mechanism of miR-330-3p in promoting cell migration and invasion in NSCLC...
June 19, 2017: Journal of Hematology & Oncology
https://www.readbyqxmd.com/read/28627696/desipramine-induces-apoptosis-in-hepatocellular-carcinoma-cells
#3
Dong Kwon Yang, Shang-Jin Kim
Antitumor effects of antidepressants have been reported in many cancer cell lines. However, anti-proliferative effects of desipramine, a tricyclic antidepressant, in hepatocellular carcinoma are currently unknown. In this study, we examined the effects of desipramine in human hepatoma Hep3B cells. To evaluate anti-proliferative effects of desipramine in Hep3B cells, we determined cell viability, reactive oxygen species (ROS) production, mitochondrial membrane potential (MMP), mitogen-activated protein kinase (MAPK) activity, and intracellular Ca2+ levels after desipramine treatment...
June 15, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28627617/sorafenib-controls-the-epithelial%C3%A2-mesenchymal-transition-of-ovarian-cancer-cells-via-egf-and-the-cd44%C3%A2-ha-signaling-pathway-in-a-cell-type%C3%A2-dependent-manner
#4
Ga Bin Park, Hyun-Suk Ko, Daejin Kim
Cluster of differentiation (CD) 44 and epidermal growth factor (EGF) are closely involved in cellular migration and have been used as stem cell markers. Although the hyaluronan (HA)‑binding CD44 is responsible for enhanced cellular motility, the mechanism underlying its actions in various cell types and clinical conditions have yet to be elucidated. In the present study, the multikinase inhibitor sorafenib was used to investigate the diverse effects of EGF stimulation on epithelial‑mesenchymal transition (EMT) in ovarian cancer cells using immunoblotting and reverse transcription‑polymerase chain reaction...
June 14, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28627346/-study-on-rac1-mapk-erk-pathway-mediated-mechanism-and-role-in-rats-with-ventilator-induced-lung-injury
#5
Guanghua Tao, Linghui Pan, Ren Jing, Fei Lin, Huijun Dai, Wanyun Ge
OBJECTIVE: To investigate the role of Ras-related C3 botulinum toxin substrate 1/mitogen-activated protein kinase/extracellular signal-regulated kinase (Rac1/MAPK/ERK) signal pathway in rats with ventilator induced lung injury (VILI) and its mechanism. METHODS: Thirty Sprague-Dawley (SD) rats were randomly divided into spontaneous respiration group, normal tidal volume (VT) group and high VT group with 10 rats in each group. The rats in spontaneous respiration group were kept their spontaneous breathing...
March 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/28625390/dopamine-protects-cerebral-autoregulation-and-prevents-hippocampal-necrosis-after-traumatic-brain-injury-via-block-of-erk-mapk-in-juvenile-pigs
#6
Victor Curvello, Hugh Hekierski, Philip Pastor, Monica S Vavilala, William M Armstead
Traumatic brain injury (TBI) contributes to morbidity in children, and more boys experience TBI. Cerebral autoregulation is impaired after TBI, contributing to poor outcome. Cerebral Perfusion Pressure (CPP) is often normalized by use of vasoactive agents to increase mean arterial pressure (MAP). In prior studies of newborn and juvenile pigs, vasoactive agent choice influenced outcome after TBI as a function of age and sex, with none protecting cerebral autoregulation in both ages and sexes. Dopamine (DA) prevents impairment of cerebral autoregulation in male and female newborn pigs via inhibition of upregulation of ERK mitogen activated protein kinase (MAPK) after fluid percussion injury (FPI)...
June 15, 2017: Brain Research
https://www.readbyqxmd.com/read/28624320/prognostic-value-of-the-vhl-hif-1%C3%AE-and-vegf-signaling-pathway-and-associated-mapk-erk1-2-and-erk5-pathways-in-clear-cell-renal-cell-carcinoma-a-long-term-study
#7
Antonio S Salinas-Sánchez, Leticia Serrano-Oviedo, Syongh Y Nam-Cha, Olga Roche-Losada, Ricardo Sánchez-Prieto, José M Giménez-Bachs
BACKGROUND: The prognostic value of molecular markers in renal cell carcinoma has been investigated in several studies. Although their value is still not confirmed, various proteins are important. We describe the effect on long-term survival of the status of the von Hippel-Lindau (VHL) hypoxia-inducible factor 1-α (HIF1-α) signaling pathway as well as associated mitogen-activated protein kinase (extracellular signal-regulated kinase [ERK]1/2 and ERK5). PATIENTS AND METHODS: A prospective, longitudinal cohort study was conducted with 50 patients diagnosed with clear-cell renal cell carcinoma to analyze VHL mutations and hypermethylation as well as VHL, HIF1-α, vascular endothelial growth factor (VEGF), ERK1/2, and ERK5 protein expression...
May 25, 2017: Clinical Genitourinary Cancer
https://www.readbyqxmd.com/read/28623716/aldose-reductase-inhibitors-attenuate-%C3%AE-amyloid-induced-tnf-%C3%AE-production-in-microlgia-via-ros-pkc-mediated-nf-%C3%AE%C2%BAb-and-mapk-pathways
#8
Xiao-Min Song, Qian Yu, Xin Dong, Hyun Ok Yang, Ke-Wu Zeng, Jun Li, Peng-Fei Tu
Microglia-mediated neuroinflammation is a key risk factor to the development of Alzheimer' disease (AD). Aldose reductase (AR) has been found to be widely involved in inflammation-related diseases; however, whether aldose reductase inhibitors (ARIs) could be used to treat neuroinflammation is rarely reported. This study aims to evaluate the anti-neuroinflammatory effects of two major ARIs of Sorbinil (Sor) and Zopolrestat (Zol) in β-amyloid protein (Aβ)-induced microglia (BV-2). We find that Sor and Zol significantly inhibit TNF-α, IL-1β, IL-6 production from microglia in response to Aβ stimulation...
June 14, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28623715/diosgenin-glucoside-provides-neuroprotection-by-regulating-microglial-m1-polarization
#9
Shaoxia Wang, Fujiang Wang, Hongyun Yang, Ruilin Li, Hong Guo, Limin Hu
The selective suppression of inflammatory factors in activated microglia, rather than totally inhibiting their activation, might be an effective means of slowing the progression of certain neurodegenerative diseases. Diosgenin glucoside (Dios) is a saponin compound extracted from Tritulus terrestris L. We found that Dios suppressed the synthesis of molecules that promote inflammation (M1 markers, such as NO, IL-6, and TNF-α) in rat microglia and BV-2 cells induced with lipopolysaccharides (LPS). In contrast, Dios had no effects on the cellular production of anti-inflammatory factors (M2 markers, such as IL-10, IL-1Rα and CD206) in LPS and IL-4 treated microglia...
June 14, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28623125/chronic-intermittent-hypoxia-induces-liver-fibrosis-in-mice-with-diet-induced-obesity-via-tlr4-myd88-mapk-nf-kb-signaling-pathways
#10
Hyeon Hui Kang, In Kyoung Kim, Hye In Lee, Hyonsoo Joo, Jeong Uk Lim, Jongmin Lee, Sang Haak Lee, Hwa Sik Moon
Obstructive sleep apnea (OSA) is associated with nonalcoholic fatty liver disease (NAFLD), and causes chronic intermittent hypoxia (CIH) during sleep. Inflammation is associated with the development of metabolic complications induced by CIH. Research suggests that innate immune mechanisms are involved in the pro-inflammatory pathways of liver fibrosis. The purpose of this study was to investigate whether innate immune responses induce liver fibrosis, and to evaluate mechanisms underlying hepatic inflammation related to CIH in a murine diet-induced obesity (DIO) model...
June 13, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28622183/cyclin-d1-is-expressed-in-neoplastic-cells-of-langerhans-cell-histiocytosis-but-not-reactive-langerhans-cell-proliferations
#11
Vignesh Shanmugam, Jeffrey W Craig, Jason L Hornick, Elizabeth A Morgan, Geraldine S Pinkus, Olga Pozdnyakova
Langerhans cell histiocytosis (LCH) is characterized by frequent activating mutations involving the mitogen-activated protein kinase (MAPK) pathway. Therefore, downstream markers of MAPK pathway activation such as cyclin D1 may be useful as novel diagnostic markers of neoplasia in LCH. The goal of this study was to investigate cyclin D1 expression in LCH and reactive Langerhans cell accumulations using immunohistochemistry on archival tissue. All LCH cases tested (39/39) showed cyclin D1 expression in CD1a/Langerin cells...
June 15, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28621226/pten-a-potential-prognostic-marker-in-virus-induced-hepatocellular-carcinoma
#12
Ayesha Khalid, Tabinda Hussain, Sobia Manzoor, Muhammad Saalim, Saba Khaliq
PTEN is the second most frequently mutated tumor suppresser gene in cancers after p53. Genetic and epigenetic alterations in the PTEN gene and its regulatory regions have been reported in various studies. PTEN is a crucial downregulator of the pro-survival phosphoinositide 3-kinase/Akt/mammalian target of rapamycin pathway and also suppresses insulin signaling. Failure to regulate these pathways leads to increase in cell proliferation and migration which in turn promotes tumorigenesis. PTEN underexpression is mediated by a variety of cytokines and stress kinases which seem to collectively induce the RAS/mitogen-activated protein kinase (MAPK)/extracellular signal-regulated kinase (ERK) pathway...
June 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28620202/nanotopological-plate-stimulates-osteogenic-differentiation-through-taz-activation
#13
Jun-Ha Hwang, Dong-Hyun Lee, Mi Ran Byun, A Rum Kim, Kyung Min Kim, Jung Il Park, Ho Taek Oh, Eun Sook Hwang, Kyu Back Lee, Jeong-Ho Hong
The topographical environment, which mimics the stem cell niche, provides mechanical cues to regulate the differentiation of mesenchymal stem cells (MSC). Diverse topographical variations have been engineered to investigate cellular responses; however, the types of mechanical parameters that affect cells, and their underlying mechanisms remain largely unknown. In this study, we screened nanotopological pillars with size gradient to activate transcriptional coactivator with PDZ binding motif (TAZ), which stimulates osteogenesis of MSC...
June 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28620126/impact-of-phosphoinositide-3-kinase-and-vitamin-d3-nuclear-receptor-single-nucleotide-polymorphisms-on-the-outcome-of-malignant-melanoma-patients
#14
Francesca Morgese, Davide Soldato, Silvia Pagliaretta, Riccardo Giampieri, Donatella Brancorsini, Mariangela Torniai, Silvia Rinaldi, Agnese Savini, Azzurra Onofri, Marina Scarpelli, Rossana Berardi
BACKGROUND: Several studies associating single nucleotide polymorphisms (SNPs) frequencies with tumors outcome have been conducted, nevertheless malignant melanoma literature data are inconclusive.Therefore we evaluate the impact of different genotypes for phosphoinositide-3-kinase (PI3K) and vitamin D3 nuclear receptor (VDR) SNPs on melanoma patients' outcome. MATERIALS AND METHODS: Genomic DNA of 88 patients was extracted from blood and tumor samples. SNPs were determined by PCR using TaqMan assays...
May 30, 2017: Oncotarget
https://www.readbyqxmd.com/read/28618355/chemical-constituents-from-the-fruits-of-ligustrum-japonicum-and-their-inhibitory-effects-on-t-cell-activation
#15
Quynh-Mai Thi Ngo, Hyun-Su Lee, Van Thu Nguyen, Jeong Ah Kim, Mi Hee Woo, Byung Sun Min
A previously undescribed nor-dammarane, 3β,20,23-trihydroxy-24,25,26,27-tetranordammarane; three previously undescribed secoiridoid glycosides, ligujaponosides A-B, and iso-oleonuzhenide; and twenty three known compounds, were isolated from the fruits of Ligustrum japonicum Thunb. Their chemical structures were elucidated by extensive spectroscopic analyses, including 1D and 2D NMR, and HRMS. The isolated compounds were screened for immunosuppressive effects on T activated cells by evaluating interleukin-2 (IL-2) production...
June 12, 2017: Phytochemistry
https://www.readbyqxmd.com/read/28616713/modulation-of-the-tgf-%C3%AE-1-induced-epithelial-to-mesenchymal-transition-emt-mediated-by-p1-and-p2-purine-receptors-in-mdck-cells
#16
Mariachiara Zuccarini, Patricia Giuliani, Silvana Buccella, Valentina Di Liberto, Giuseppa Mudò, Natale Belluardo, Marzia Carluccio, Margherita Rossini, Daniele Filippo Condorelli, Michel Piers Rathbone, Francesco Caciagli, Renata Ciccarelli, Patrizia Di Iorio
Epithelial to mesenchymal transition (EMT) occurs during embryogenesis or under pathological conditions such as hypoxia, injury, chronic inflammation, or tissue fibrosis. In renal tubular epithelial cells (MDCK), TGF-β1 induces EMT by reducing or increasing epithelial or mesenchymal marker expression, respectively. In this study, we confirmed that the cAMP analogues, 8-CPT-cAMP or N6-Ph-cAMP, inhibited the TGF-β1-driven overexpression of the mesenchymal markers ZEB-1, Slug, Fibronectin, and α-SMA. Furthermore, we showed that A1, A2A, P2Y1, P2Y11, and P2X7 purine receptor agonists modulated the TGF-β1-induced EMT through the involvement of PKA and/or MAPK/ERK signaling...
June 14, 2017: Purinergic Signalling
https://www.readbyqxmd.com/read/28615956/the-role-of-long-noncoding-rna-let-in-cell-proliferation-and-invasion-of-nasopharyngeal-carcinoma-and-its-mechanism
#17
Lei Chen, Lingling Sun, Lei Dong, Peng Cui, Ziwei Xia, Chao Li, Yu Zhu
LncRNA-LET, a recently identified long noncoding RNA, has been shown to act as a tumor suppressor; however, its biological function and mechanism have not been fully investigated. Our research found that there was less expression of LET in nasopharyngeal carcinoma (NPC) tissues than normal tissues and that LET might inhibit proliferation, adhesion and invasion of NPC in vitro by enhancing its expression. By contrast, decreased LET expression could promote the proliferation, adhesion and invasion of NPC. In addition, the expression profiles of related genes and MAPK/ERK pathway were also regulated effectively via overexpression or silencing of LET...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28615628/glucocorticoids-ameliorate-tgf-%C3%AE-1-mediated-epithelial-to-mesenchymal-transition-of-airway-epithelium-through-mapk-and-snail-slug-signaling-pathways
#18
Hyun-Woo Yang, Seoung-Ae Lee, Jae-Min Shin, Il-Ho Park, Heung-Man Lee
Chronic rhinosinusitis with nasal polyps (CRSwNP) is closely associated with tissue remodeling. Epithelial-to-mesenchymal transition (EMT), a process of tissue remodeling, can be a therapeutic target of CRSwNP. Glucocorticoids are a type of steroid hormone that is used primarily in medical therapy for patients with CRSwNP; however, their effects on EMT in the airway epithelium remain unknown. To investigate the effects of dexamethasone and fluticasone propionate, a class of glucocorticoids, on transforming growth factor-β1 (TGF-β1) -induced EMT, we used A549 cells, human primary nasal epithelial cells (hPNECs) and ex vivo organ culture of the inferior turbinate...
June 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28615349/cftr-protects-against-vascular-inflammation-and-atherogenesis-in-apolipoprotein-e-deficient-mice
#19
Zhengzhang Li, Zhe Shen, Haoping Xue, Shi Cheng, Qun Ji, Yutan Liu, Xiangjun Yang
Atherosclerosis is a chronic inflammatory disease of the vascular wall. Dysfunction of cystic fibrosis transmembrane conductance regulator (CFTR) has been shown to result in inflammatory responses in cystic fibrosis (CF) patients. However, little is known about the role of CFTR in vascular inflammation and atherogenesis. Our results showed that CFTR was dominantly expressed in macrophages of atherosclerotic plaque and reduced in aorta and aortic sinus from atherosclerotic apolipoprotein E-deficient (apoE-/-) mice...
June 14, 2017: Bioscience Reports
https://www.readbyqxmd.com/read/28615297/disruption-of-aneuploidy-and-senescence-induced-by-aurora-inhibition-promotes-intrinsic-apoptosis-in-double-hit-or-double-expressor-diffuse-large-b-cell-lymphomas
#20
Daruka Mahadevan, Shariful Islam, Wenqing Qi, Carla Morales, Laurence Cooke, Catherine Spier, Eric Weterings
Double Hit (DH) or Double Expressor (DE) diffuse large B-cell lymphoma (DLBCL) are aggressive Non-Hodgkin's Lymphomas (NHLs) with translocations and/or over-expressions of MYC and BCL-2, that are difficult to treat. Aurora kinase (AK) inhibition with alisertib in DH/DE-DLBCL induces cell death in ~30%, while ~70% are aneuploid and senescent cells (AASCs), a mitotic escape mechanism contributing to drug resistance. These AASCs elaborated a high metabolic rate by increased AKT/mTOR and ERK/MAPK activity via BTK signaling through the chronic active B-cell receptor (BCR) pathway...
June 14, 2017: Molecular Cancer Therapeutics
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