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https://www.readbyqxmd.com/read/29345422/cantharidic-acid-induces-apoptosis-of-human-leukemic-hl-60-cells-via-c-jun-n-terminal-kinase-regulated-caspase-8-9-3-activation-pathway
#1
Shih-Chung Wang, Jyh-Ming Chow, Ming-Hsien Chien, Chiao-Wen Lin, Hui-Yu Chen, Pei-Ching Hsiao, Shun-Fa Yang
Cantharidin, a natural toxin from blister beetles, has shown potent anticancer activities on many solid tumor cells. Recently, cantharidin and its analogue, norcantharidin, were also shown to suppress nonsolid tumors such as chronic myeloid leukemia, acute myeloid leukemia (AML), and leukemic stem cells. However, there is no available information to address the effects of cantharidic acid (CAC), a hydrolysis product of cantharidin, on human AML cells. The present study showed that CAC, at a range of concentrations (0-20 μM), concentration-dependently inhibited cell proliferation in the HL-60 AML cell line...
January 18, 2018: Environmental Toxicology
https://www.readbyqxmd.com/read/29345351/k313-a-novel-benzoxazole-derivative-exhibits-anti-inflammatory-properties-via-inhibiting-gsk3%C3%AE-activity-in-lps-induced-raw264-7-macrophages
#2
Bo-Bo Zhao, Hui-Jie Guo, Yang Liu, Xing-Yan Luo, Shu-Xia Yang, Yan-Tang Wang, Xiao Leng, Chun-Fen Mo, Qiang Zou
Benzoxazole and its derivatives have been widely studied in recent years due to their various biological properties. A previous study has demonstrated that K313 (1H-indole-2,3-dione 3-(1,3-benzoxazol-2-ylhydrazone)), a novel benzoxazole derivative, inhibits T cell proliferation to yield immunosuppressive effects. However, there are no related reports about its anti-inflammatory effects. In the present study, we investigated the anti-inflammatory properties and the underlying molecular mechanism of K313 in lipopolysaccharide (LPS)-induced RAW264...
January 18, 2018: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29344660/purple-sweet-potato-color-attenuates-high-fat-induced-neuroinflammation-in-mouse-brain-by-inhibiting-mapk-and-nf-%C3%AE%C2%BAb-activation
#3
Jian Li, Zhao Shi, Yongjie Mi
Purple sweet potato color (PSPC) is a natural anthocyanin pigment that is derived from purple sweet potato storage roots. PSPC possesses a variety of biological activities, including antioxidant, anti‑inflammatory and neuroprotective effects; however, the detailed effects of PSPC on high‑fat diet (HFD)‑induced neuroinflammation remain to be determined. The aim of the present study was to investigate whether PSPC has a protective role in HFD‑associated neuroinflammation in the mouse brain and to provide novel insight into the mechanisms of the action...
January 17, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29344204/silibinin-inhibits-the-migration-and-invasion-of-human-gastric-cancer-sgc7901-cells-by-downregulating-mmp-2-and-mmp-9-expression-via-the-p38mapk-signaling-pathway
#4
Shuming Lu, Zhuqing Zhang, Meiru Chen, Chunyan Li, Lina Liu, Yan Li
The objective of the present study was to observe the effects of silibinin and the p38 mitogen-activated protein kinase (MAPK) signaling pathway inhibitor SB203580 on the migration and invasion capabilities of SGC7901 cells, and to explore the underlying associated mechanisms. Scratch, Transwell and Matrigel invasion assays were performed to study the effects of silibinin on cell migration and invasion. Western blot analysis was used to determine the expression levels of p38MAPK, phosphorylated (p-)p38MAPK, matrix metalloproteinase (MMP)-2 and MMP-9...
December 2017: Oncology Letters
https://www.readbyqxmd.com/read/29344159/p38-predicts-depression-and-poor-outcome-in-esophageal-cancer
#5
Yao Cheng, Zhe Qiao, Chengxue Dang, Bin Zhou, Shaomin Li, Wei Zhang, Jiantao Jiang, Yongchun Song, Jin Zhang, Dongmei Diao
p38 mitogen-activated protein kinase (MAPK) signaling has been implicated in the cancer development and progression. However, the precise mechanism of this association remains unknown. The aim of the present study was to evaluate the association between p38 and cancer progression, including investigations into the effects on cell proliferation, resistance to thalidomide, indoleamine 2,3-dioxygenase (IDO) expression and prognosis in patients with esophageal cancer. The present retrospective study included patients with stage I-III esophageal cancer...
December 2017: Oncology Letters
https://www.readbyqxmd.com/read/29340362/synergetic-topography-and-chemistry-cues-guiding-osteogenic-differentiation-in-bone-marrow-stromal-cells-through-erk1-2-and-p38-mapk-signaling-pathway
#6
Xinran Zhang, Haotian Li, Chucheng Lin, Congqin Ning, Kaili Lin
Both the topographic surface and chemical composition modification can enhance rapid osteogenic differentiation and bone formation. Till now, the synergetic effects of topography and chemistry cues guiding biological responses have been rarely reported. Herein, the ordered micro-patterned topography and classically essential trace element of strontium (Sr) ion doping were selected to imitate topography and chemistry cues, respectively. The ordered micro-patterned topography on Sr ion-doped bioceramics was successfully duplicated using the nylon sieve as the template...
January 17, 2018: Biomaterials Science
https://www.readbyqxmd.com/read/29340057/aberrant-expression-of-styk1-and-e-cadherin-confer-a-poor-prognosis-for-pancreatic-cancer-patients
#7
Luguang Chen, Chao Ma, Yun Bian, Chengwei Shao, Tiegong Wang, Jing Li, Xiaodan Chong, Li Su, Jianping Lu
Previous studies showed that aberrant Serine/threonine/tyrosine kinase 1 (STYK1, also known as NOK) or/and E-cadherin were involved in the progression of some types of human cancers. However, whether they contributed to the development of pancreatic cancer was unknown. Here, we investigated the prognostic significance of aberrant STYK1 and E-cadherin in pancreatic cancer. Our results showed that STYK1 expression increased while E-cadherin decreased in pancreatic cancer tissues compared with normal pancreas tissues...
December 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29339777/regulation-of-the-response-of-caenorhabditis-elegans-to-simulated-microgravity-by-p38-mitogen-activated-protein-kinase-signaling
#8
Wenjie Li, Daoyong Wang, Dayong Wang
The in vivo function of p38 mitogen-activated protein kinase (MAPK) signaling in regulating the response to simulated microgravity is still largely unclear. Using Caenorhabditis elegans as an assay system, we investigated the in vivo function of p38 MAPK signaling in regulating the response of animals to simulated microgravity and the underlying molecular mechanism. Simulated microgravity treatment significantly increased the transcriptional expressions of genes (pmk-1, sek-1, and nsy-1) encoding core p38 MAPK signaling pathway and the expression of phosphorylated PMK-1/p38 MAPK...
January 16, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29337195/secretoneurin-suppresses-cardiac-hypertrophy-through-suppression-of-oxidant-stress
#9
Hua-Li Chen, Yan Liu, Wei Jiang, Xiao-Xiao Wang, Guo-Lin Yuan, Yi-Lin Zhao, Chao Yu
The neuropeptide secretoneurin (SN) plays protective roles in myocardial ischemia. In the present study, the effect of SN in cardiac hypertrophy was investigated. We observed that, in isoproterenol (ISO) treatment induced cardiac or cardiomyocytes hypertrophy, a marked increase in the expression of endogenous SN in mouse plasma, myocardium and primary-cultured cardiomyocytes occurs. In hypertrophic mice, the heart size, heart weight/body weight (HW/BW) ratio, cardiomyocyte size, and atrial natriuretic peptide (ANP) and brain natriuretic peptide (BNP) expression were significantly higher than those in controls but were effectively suppressed by SN gene therapy...
January 11, 2018: European Journal of Pharmacology
https://www.readbyqxmd.com/read/29336467/nox4-ros-mediate-ethanol%C3%A2-induced-apoptosis-via-mapk-signal-pathway-in-l%C3%A2-02-cells
#10
Cheng-Fang Yang, Yu-Juan Zhong, Zuheng Ma, Li Li, Lin Shi, Li Chen, Chen Li, Dan Wu, Qi Chen, Yong-Wen Li
The aim of the present study was to assess the molecular mechanism of ethanol‑induced oxidative stress‑mediated apoptosis in L‑02 liver cells in order to elucidate novel pathways associated with alcoholic liver disease. L‑02 cells were treated with 400 mM ethanol with or without inhibitors. The cell viability was measured by an MTT assay. Cell apoptosis was assessed by flow cytometry and a single‑stranded DNA (ssDNA) assay. Intracellular reactive oxygen species (ROS) production of L‑02 cells was determined using the 2',7'‑dichlorofluorescein‑diacetate dye...
January 16, 2018: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29336147/urolithins-attenuate-lps-induced-neuroinflammation-in-bv2microglia-via-mapk-akt-and-nf-%C3%AE%C2%BAb-signaling-pathways
#11
Jialin Xu, Chunhui Yuan, Guihua Wang, Jiaming Luo, Hang Ma, Li Xu, Yu Mu, Yuanyuan Li, Navindra P Seeram, Xueshi Huang, Liya Li
Emerging data suggest that urolithins, gut microbiota metabolites of ellagitannins, contribute toward multiple health benefits attributed to ellagitannin-rich foods, including walnuts, red raspberry, strawberry, and pomegranate. However, there is limited data on whether the potential neuroprotective effects of these ellagitannin-rich foods are mediated by urolithins. Herein, we evaluated the potential mechanisms of antineuroinflammatory effects of urolithins (urolithins A, B, and C; 8-methyl-O-urolithin A; and 8,9-dimethyl-O-urolithin C) in BV2 murine microglia in vitro...
January 16, 2018: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/29335864/ethanol-extract-of-lycopodium-serratum-thunb-attenuates-lipopolysaccharide-induced-c6-glioma-cells-migration-via-matrix-metalloproteinase-9-expression
#12
Ju-Yeon Park, Hyuck Kim, Dong-Woo Lim, Jai-Eun Kim, Won-Hwan Park, Sun-Dong Park
OBJECTIVE: To elucidate how ethanol extract of L. serratum (ELS) could exert anti-migratory effects on glioma with the suppression of nuclear factor kappa B (NF-κB) downstream pathway. METHODS: Cell viability of ELS on C6 glioma was detected by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. Nitric oxide (NO) assay and 2',7'-dichloroflfluorescin diacetate (DCFH-DA) assay were applied to measure NO production and reactive oxygen species (ROS) generation on lipopolysaccharide (LPS)-induced C6 glioma cells...
January 15, 2018: Chinese Journal of Integrative Medicine
https://www.readbyqxmd.com/read/29335857/effect-of-soothing-gan-liver-and-invigorating-pi-spleen-recipes-on-tlr4-p38-mapk-pathway-in-kupffer-cells-of-non-alcoholic-steatohepatitis-rats
#13
Xiang-Wen Gong, Yong-Jian Xu, Qin-He Yang, Yin-Ji Liang, Yu-Pei Zhang, Guan-Long Wang, Yuan-Yuan Li
OBJECTIVE: To investigate the mechanism of inflammatory-mediated toll-like receptor 4 (TLR4)-p38 mitogen-activated protein kinase (p38 MAPK) pathway in Kupffer cells (KCs) of non-alcoholic steatohepatitis (NASH) rats and the intervention effect of soothing Gan (Liver) and invigorating Pi (Spleen) recipes on this pathway. METHODS: After 1 week of acclimatization, 120 Sprague-Dawley male rats were randomly divided into 8 groups using a random number table (n=15 per group): normal group, model group, low-dose Chaihu Shugan Powder (, CHSG) group (3...
January 9, 2018: Chinese Journal of Integrative Medicine
https://www.readbyqxmd.com/read/29335842/direct-repression-of-igf2-is-implicated-in-the-anti-angiogenic-function-of-microrna-210-in-human-retinal-endothelial-cells
#14
Qinbo Yang, Peiwei Wang, Xiaoye Du, Wenjian Wang, Teng Zhang, Yu Chen
Pathological angiogenesis leads to the development of retinal vasculopathies and causes severe vision impairment. Increased understanding of the mechanisms underlying the angiogenic behavior of retinal endothelial cells helps provide new insights for developing treatment of retinal vasculopathies. Pro-angiogenic function of miR-210 has previously been identified. However, the functional implication of miR-210 in retinal endothelial cells remains unknown. Human retinal microvascular endothelial cells (HRECs) were employed to investigate the impact of miR-210 on the angiogenic capacity of retinal endothelial cells...
January 15, 2018: Angiogenesis
https://www.readbyqxmd.com/read/29334172/silica-nanoparticle-induced-cytokine-responses-in-beas-2b-and-hbec3-kt-cells-significance-of-particle-size-and-signalling-pathways-in-different-lung-cell-cultures
#15
Marit Låg, Tonje Skuland, Anna Godymchuk, Thu H T Nguyen, Hang L T Pham, Magne Refsnes
We have previously reported that silica nanoparticles (SiNPs) of nominal size 50 nm (Si50) induce the pro-inflammatory cytokines CXCL8 and IL-6 in BEAS-2B cells, via mechanisms involving MAPK p38, TACE-mediated TGFα release and the NFκB pathway. In the present study, we examined whether these findings are cell-specific or might be extended to another epithelial lung cell model, HBEC3-KT, and also to SiNPs of a smaller size (nominal size of 10 nm; Si10). The TEM average size of Si10 and Si50 was 10.9 nm and 34...
January 15, 2018: Basic & Clinical Pharmacology & Toxicology
https://www.readbyqxmd.com/read/29333385/kaempferol-inhibits-angiogenesis-by-suppressing-hif-1%C3%AE-and-vegfr2-activation-via-erk-p38-mapk-and-pi3k-akt-mtor-signaling-pathways-in-endothelial-cells
#16
Gi Dae Kim
Kaempferol has been shown to inhibit vascular formation in endothelial cells. However, the underlying mechanisms are not fully understood. In the present study, we evaluated whether kaempferol exerts antiangiogenic effects by targeting extracellular signal-regulated kinase (ERK)/p38 mitogen-activated protein kinase (MAPK) and phosphoinositide 3-kinase (PI3K)/Akt/mechanistic target of rapamycin (mTOR) signaling pathways in endothelial cells. Endothelial cells were treated with various concentrations of kaempferol for 24 h...
December 2017: Preventive Nutrition and Food Science
https://www.readbyqxmd.com/read/29332347/genetically-engineered-bone-marrow-derived-mesenchymal-stem-cells-co-expressing-ifn-%C3%AE-and-il-10-inhibit-hepatocellular-carcinoma-by-modulating-mapk-pathway
#17
Hao Wang, Jun Wang, Xiaolei Shi, Yitao Ding
PURPOSE: One of the major challenges in delivering cytokines for the treatment of hepatocellular carcinoma (HCC) is the mode of delivery. This study hypothesized that genetically engineered bone marrow derived mesenchymal stem cells (BMSCs) co-expressing IFN-γ and IL-10 can serve as a potential therapeutic strategy in the treatment of HCC by inhibiting cell proliferation. METHODS: Male Sprague-Dawley rats (n=5, 200-250 g) for BMSCs isolation and Nude/SCID mice (n=35,12-20g) to develop liver cancer xenograft model were used...
November 2017: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
https://www.readbyqxmd.com/read/29331758/caspase-3-mapk-pathways-as-main-regulators-of-the-apoptotic-effect-of-the-phyto-mediated-synthesized-silver-nanoparticle-from-dried-stem-of-eleutherococcus-senticosus-in-human-cancer-cells
#18
Chun Gon Kim, Verónica Castro-Aceituno, Ragavendran Abbai, Hyun A Lee, Shakina Yesmin Simu, Yaxi Han, Joon Hurh, Yeon-Ju Kim, Deok Chun Yang
Siberian ginseng (Eleutherococcus senticosus) was used for the synthesis of an ecofriendly silver nanoparticle (Sg-AgNP), which has exhibited antibacterial, antioxidant effect and lower cytotoxicity to normal cells in comparison to human cancer cells. Although, the potential anticancer activity of Sg-AgNP has not been determined. In this study, two cancer cell lines were used to evaluate the cytotoxicity and apoptotic effect of Sg-AgNP along with the determination of the role of the Caspase-3 / p38 MAPK pathways...
January 9, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29330061/forsythoside-a-inhibited-s-aureus-stimulated-inflammatory-response-in-primary-bovine-mammary-epithelial-cells
#19
Jiali Zhang, Yue Zhang, Hailong Huang, Haiwei Zhang, Wei Lu, Guoqun Fu, Yunzhang Zhu
Forsythoside A (FTA), the major bioactive component extracted from Forsythiae fructus, has multiple biological properties especially anti-inflammatory property. Staphylococcus aureus (S. aureus), a Gram-positive organism, is one of most common pathogens that cause bovine mastitis. This study evaluated the anti-inflammatory effect of FTA in S. aureus-stimulated primary bovine mammary epithelial cells (bMEC). Primary bovine mammary epithelial cells were isolated from the mammary tissue of lactating cows and identified as bMEC...
January 9, 2018: Microbial Pathogenesis
https://www.readbyqxmd.com/read/29329586/il-33-st2-signaling-contributes-to-radicular-pain-by-modulating-mapk-and-nf-%C3%AE%C2%BAb-activation-and-inflammatory-mediator-expression-in-the-spinal-cord-in-rat-models-of-noncompressive-lumber-disk-herniation
#20
Si-Jian Huang, Jian-Qin Yan, Hui Luo, Lu-Yao Zhou, Jian-Gang Luo
BACKGROUND: Immune and inflammatory responses occurring in the spinal cord play a pivotal role in the progression of radicular pain caused by intervertebral disk herniation. Interleukin-33 (IL-33) orchestrates inflammatory responses in a wide range of inflammatory and autoimmune disorders of the nervous system. Thus, the purpose of this study is to investigate the expression of IL-33 and its receptor ST2 in the dorsal spinal cord and to elucidate whether the inhibition of spinal IL-33 expression significantly attenuates pain-related behaviors in rat models of noncompressive lumbar disc herniation...
January 12, 2018: Journal of Neuroinflammation
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