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https://www.readbyqxmd.com/read/28430601/growth-suppressive-activity-of-raloxifene-on-liver-cancer-cells-by-targeting-il-6-gp130-signaling
#1
Yina Wang, Haiyan Ma, Chongqiang Zhao, Tianshu Liu, Dan Yan, David Jou, Huameng Li, Cuntai Zhang, Jiagao Lü, Chenglong Li, Jiayuh Lin, Sheng Li, Li Lin
BACKGROUND: Interleukin-6 (IL-6) is a multifunctional cytokine, which is involved in the regulation of differentiation and growth of certain types of tumor cells. Constitutive activation of Signal Transducer and Activator of Transcription 3 (STAT3) induced by IL-6 is frequently detected in liver cancer and has emerged as a viable molecular target for liver cancer treatment. However, few inhibitors targeting up-streams of STAT3 are available for the therapy of liver cancer. We reported the discovery of EVISTA (Raloxifene HCl) as novel inhibitor of IL-6/GP130 protein-protein interactions (PPIs) using multiple ligand simultaneous docking (MLSD) and drug repositioning...
April 6, 2017: Oncotarget
https://www.readbyqxmd.com/read/28430129/curcumin-inhibits-apoptosis-of-chondrocytes-through-activation-erk1-2-signaling-pathways-induced-autophagy
#2
Xiaodong Li, Kai Feng, Jiang Li, Degang Yu, Qiming Fan, Tingting Tang, Xiao Yao, Xiaoqing Wang
Osteoarthritis (OA) is an inflammatory disease of load-bearing synovial joints that is currently treated with drugs that exhibit numerous side effects and are only temporarily effective in treating pain, the main symptom of the disease. Consequently, there is an acute need for novel, safe, and more effective chemotherapeutic agents for the treatment of osteoarthritis and related arthritic diseases. Curcumin, the principal curcuminoid and the most active component in turmeric, is a biologically active phytochemical...
April 21, 2017: Nutrients
https://www.readbyqxmd.com/read/28429668/the-role-of-mitochondria-associated-reactive-oxygen-species-in-the-amyloid-%C3%AE-induced-production-of-angiogenic-factors-by-arpe-19-cells
#3
L Wu, X Tan, L Liang, H Yu, C Wang, D Zhang, A Kijlstra, P Yang
OBJECTIVE: This study aimed to investigate the mechanisms whereby Amyloid-beta (Aβ) induces the production of angiogenic factors by a human retinal pigment epithelial cell line (ARPE-19) cells. METHODS: ARPE-19 cells obtained from the American Type Culture Collection (ATCC) were utilized in this study. The expression level of vascular endothelial growth factor (VEGF), Interleukin-8 (IL-8), monocyte chemoattractant protein-1 (MCP-1) and complement activation fragments C3a and C5a were measured by Real-time quantitative PCR (RT-PCR) and Enzyme-linked immunosorbent assay (ELISA)...
March 31, 2017: Current Molecular Medicine
https://www.readbyqxmd.com/read/28428754/pu-erh-tea-water-extract-mediates-cell-cycle-arrest-and-apoptosis-in-mda-mb-231-human-breast-cancer-cells
#4
Jing Xie, Haishuang Yu, Shuang Song, Chongye Fang, Xuanjun Wang, Zhongbin Bai, Xiao Ma, Shumei Hao, Hong-Ye Zhao, Jun Sheng
Pu-erh tea is believed to have health benefits, the growth inhibition activity of Pu-erh tea on breast cancer cell has not been investigated. In this study, we examined the activity of Pu-erh tea water extract on apoptosis and cell cycle arrest in the human breast adenocarcinoma cell line MDA-MB-231 and clarified its underlying mechanism of action. We found that Pu-erh tea extract inhibited cell proliferation and induced apoptosis in a dose-dependent manner. We also found that Pu-erh tea extract inhibited tumor cell growth within 24 h via accumulation of cells in S phase...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28427524/kallistatin-suppresses-cancer-development-by-multi-factorial-actions
#5
REVIEW
Julie Chao, Pengfei Li, Lee Chao
Kallistatin was first identified in human plasma as a tissue kallikrein-binding protein and a serine proteinase inhibitor. Kallistatin via its two structural elements regulates differential signaling cascades, and thus a wide spectrum of biological functions. Kallistatin's active site is essential for: inhibiting tissue kallikrein's activity; stimulating endothelial nitric oxide synthase and sirtuin 1 expression and activation; and modulating the synthesis of the microRNAs, miR-34a, miR-21 and miR-203. Kallistatin's heparin-binding site is crucial for antagonizing the signaling pathways of vascular endothelial growth factor, tumor necrosis factor-α, Wnt, transforming growth factor-β and epidermal growth factor...
May 2017: Critical Reviews in Oncology/hematology
https://www.readbyqxmd.com/read/28427476/regeneration-of-full-thickness-skin-defects-by-differentiated-adipose-derived-stem-cells-into-fibroblast-like-cells-by-fibroblast-conditioned-medium
#6
Woojune Hur, Hoon Young Lee, Hye Sook Min, Maierdanjiang Wufuer, Chang-Won Lee, Ji An Hur, Sang Hyon Kim, Byeung Kyu Kim, Tae Hyun Choi
BACKGROUND: Fibroblasts are ubiquitous cells in the human body and are absolutely necessary for wound healing such as for injured skin. This role of fibroblasts was the reason why we aimed to differentiate human adipose-derived stem cells (hADSCs) into fibroblasts and to test their wound healing potency. Recent reports on hADSC-derived conditioned medium have indicated stimulation of collagen synthesis as well as migration of dermal fibroblasts in wound sites with these cells. Similarly, human fibroblast-derived conditioned medium (F-CM) was reported to contain a variety of factors known to be important for growth of skin...
April 20, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28427228/mir-29a-regulated-er-positive-breast-cancer-cell-growth-and-invasion-and-is-involved-in-the-insulin-signaling-pathway
#7
Zhi-Hua Li, Qiu-Yun Xiong, Liang Xu, Peng Duan, Qianwen Ou Yang, Ping Zhou, Jian-Hong Tu
Increasing amounts of evidence show that insulin can activate different insulin signaling pathways to promote breast cancer growth and invasion. miR-29a plays crucial roles in decreasing glucose-stimulated insulin secretion, as well as in regulating breast cancer cell proliferation and EMT. However, the mechanism responsible for the regulatory effects of miR-29a on breast cancer growth and invasion and the relationship between these effects and insulin signaling remains unclear. Herein, we showed that human insulin increased miR-29a expression in ER-positive breast cancer cells and that miR-29a facilitated the ability of insulin to promote breast cancer cell proliferation and migration...
March 6, 2017: Oncotarget
https://www.readbyqxmd.com/read/28424170/ros-induced-ros-release-orchestrated-by-nox4-nox2-and-mitochondria-in-vegf-signaling-and-angiogenesis
#8
Young-Mee Kim, Seok-Jo Kim, Ryosuke Tatsunami, Hisao Yamamura, Tohru Fukai, Masuko Ushio-Fukai
Reactive oxygen species (ROS) derived from NADPH oxidase (NOX) and mitochondria play a critical role in growth factor-induced switch from a quiescent to an angiogenic phenotype in endothelial cells (ECs). However, how highly diffusible ROS produced from different sources can coordinate to stimulate VEGF signaling and drive the angiogenic process remains unknown. Using the cytosol- and mitochondria-targeted redox-sensitive RoGFP biosensors with real-time imaging, here we show that VEGF stimulation in human ECs rapidly increases cytosolic RoGFP oxidation within 1 min, followed by mitochondrial RoGFP oxidation within 5 min, which continues at least for 60 min...
April 19, 2017: American Journal of Physiology. Cell Physiology
https://www.readbyqxmd.com/read/28423739/sialyllactose-suppresses-angiogenesis-by-inhibiting-vegfr-2-activation-and-tumor-progression
#9
Tae-Wook Chung, Eun-Young Kim, Seok-Jo Kim, Hee-Jung Choi, Se Bok Jang, Keuk-Jun Kim, Sun-Hyung Ha, Fukushi Abekura, Choong-Hwan Kwak, Cheorl-Ho Kim, Ki-Tae Ha
The oligosaccharides in human milk have various biological functions. However, the molecular mechanism(s) underlying the anti-angiogenic action of sialylated human milk oligosaccharides (HMOs) are still unclear. Here, we show that siallylactose (SL) found in human milk can inhibit the activation of vascular endothelial growth factor (VEGF)-mediated VEGF receptor-2 (VEGFR-2) by binding to its VEGF binding site (second and third IgG-like domains), thus blocking downstream signal activation. SL also inhibits growth of VEGF-stimulated endothelial cells...
March 14, 2017: Oncotarget
https://www.readbyqxmd.com/read/28423575/activated-notch-signaling-augments-cell-growth-in-hepatocellular-carcinoma-via-up-regulating-the-nuclear-receptor-nr4a2
#10
Bo Zhu, Lichun Sun, Wei Luo, Min Li, David H Coy, Long Yu, Wenbo Yu
Hepatocellular carcinoma (HCC) is one of the most malignant cancers. Conventional therapies are limited due to the human liver being such a unique organ and easily showing side-effects. The unclear molecular mechanisms are tough challenges for scientists searching for new and effective anti-HCC targeting drugs. We identified that the nuclear receptor NR4A2 is a novel oncogene in HCC progression. In this study, we show that NR4A2 and the notch recceptor Notch1 were expressed highly in primary HCC tissues and immortal HCC cells by using qPCR, western blot and immuno-histochemistry assays...
April 4, 2017: Oncotarget
https://www.readbyqxmd.com/read/28423532/implication-of-vascular-endothelial-growth-factor-a-and-c-in-revealing-diagnostic-lymphangiogenic-markers-in-node-positive-bladder-cancer
#11
Cédric Poyet, Linto Thomas, Tobias M Benoit, David Aquino Delmo, Laura Luberto, Irina Banzola, Michèle S Günthart, Giovanni Sais, Daniel Eberli, Tullio Sulser, Maurizio Provenzano
Several lymphangiogenic factors, such as vascular endothelial growth factors (VEGFs), have been found to drive the development of lymphatic metastasis in bladder cancer (BCa).Here, we have analyzed the gene expression of lymphangiogenic factors in tissue specimens from 12 non-muscle invasive bladder cancers (NMIBC) and 11 muscle invasive bladder cancers (MIBC), considering tumor and tumor-adjacent normal bladder areas obtained from the same organs. We then compared the results observed in patients with those obtained after treating human primary bladder microvascular endothelial cells (MEC) with either direct stimulation with VEGF-A or VEGF-C or by co-culturing (trans-well assay) MEC with bladder cancer cell lines varying in VEGF-A and VEGF-C production based on tumor grade...
March 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28423056/hair-and-stress-a-pilot-study-of-hair-and-cytokine-balance-alteration-in-healthy-young-women-under-major-exam-stress
#12
Eva M J Peters, Yvonne Müller, Wenke Snaga, Herbert Fliege, Anett Reißhauer, Thomas Schmidt-Rose, Heiner Max, Dorothea Schweiger, Matthias Rose, Johannes Kruse
Mouse models show that experimental stress mimicking prolonged life-stress exposure enhances neurogenic inflammation, induces adaptive immunity cytokine-imbalance characterized by a shift to Type 1 T-helper cell cytokines and increases apoptosis of epithelial cells. This affects hair growth in otherwise healthy animals. In this study, we investigate whether a prolonged naturalistic life-stress exposure affects cytokine balance and hair parameters in healthy humans. 33 (18 exam, 15 comparison) female medical students with comparable sociobiological status were analyzed during a stressful final examination period, at three points in time (T) 12 weeks apart...
2017: PloS One
https://www.readbyqxmd.com/read/28423042/transforming-growth-factor-%C3%AE-1-enhances-heme-oxygenase-1-expression-in-human-synovial-fibroblasts-by-inhibiting-microrna-519b-synthesis
#13
Shu-Jui Kuo, Wei-Hung Yang, Shan-Chi Liu, Chun-Hao Tsai, Horng-Chaung Hsu, Chih-Hsin Tang
BACKGROUND: Osteoarthritis (OA) is manifested by synovial inflammation and cartilage destruction that is directly linked to synovitis, joint swelling and pain. In the light of the role of synovium in the pathogenesis and the symptoms of OA, synovium-targeted therapy is a promising strategy to mitigate the symptoms and progression of OA. Transforming growth factor beta 1 (TGF-β1), a secreted homodimeric protein, possesses unique and potent anti-inflammatory and immune-regulatory properties in many cell types...
2017: PloS One
https://www.readbyqxmd.com/read/28420820/high-insulin-impaired-ovarian-function-in-early-pregnant-mice-and-the-role-of-autophagy-in-this-process
#14
Yan Su, Juan Wu, Junlin He, Xueqing Liu, Xuemei Chen, Yubin Ding, Chen Zhang, Wenqi Chen, Yingxiong Wang, Rufei Gao
Metabolic disorders, such as PCOS (polycystic ovarian syndrome) and T2DM (type 2 diabetes mellitus), are associated with menstrual dysfunction, anovulation, infertility, and early pregnancy loss. Ovarian dysfunction is not only related to low pregnancy rates but also to the increased risk of miscarriage. Women with PCOS or T2DM, characterized by hyperinsulinemia, commonly experience ovarian dysfunction. In this study, we first explored whether high insulin levels directly affected ovarian functioning during embryo implantation...
April 18, 2017: Endocrine Journal
https://www.readbyqxmd.com/read/28420432/elevated-gab2-induces-tumor-growth-and-angiogenesis-in-colorectal-cancer-through-upregulating-vegf-levels
#15
Chenbo Ding, Junmin Luo, Xiaobo Fan, Longmei Li, Shanshan Li, Kunming Wen, Jihong Feng, Guoqiu Wu
BACKGROUND: Grb2-associated binder 2 (Gab2) is a scaffolding protein that serves as a critical signaling amplifier downstream of tyrosine kinase receptors. Our previous study has shown that Gab2 induces epithelial-to-mesenchymal transition (EMT) and promotes metastasis in colorectal cancer (CRC). However, the role of Gab2 in CRC growth and angiogenesis remains unclear. METHODS: The expression of vascular endothelial growth factor (VEGF) in different colorectal tissues was detected by immunohistochemistry and qRT-PCR to evaluate its correlation with Gab2...
April 18, 2017: Journal of Experimental & Clinical Cancer Research: CR
https://www.readbyqxmd.com/read/28420408/sialylation-regulates-myofibroblast-differentiation-of-human-skin-fibroblasts
#16
Norihiko Sasaki, Yoko Itakura, Masashi Toyoda
BACKGROUND: Fibroblasts are key players in maintaining skin homeostasis and in orchestrating physiological tissue repair and skin regeneration. Dysfunctions in fibroblasts that occur with aging and the senescent process lead to the delayed healing observed in elderly people. The molecular mechanisms leading to fibroblast dysfunction during aging and the senescent process have not yet been clarified. Previously, changes in patterns of glycosylation were observed in fibroblasts in aging and the senescent process, but the effect of these changes on the function of fibroblasts has not been well documented...
April 18, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28420144/retinoids-regulate-adipogenesis-involving-the-tgf%C3%AE-smad-and-wnt-%C3%AE-catenin-pathways-in-human-bone-marrow-mesenchymal-stem-cells
#17
Jun Cao, Yuhong Ma, Weiqi Yao, Xiaoye Zhang, Dongcheng Wu
Retinoids may regulate cell differentiation as ligands of retinoic acid receptors (RARs) and/or retinoid X receptors (RXRs). We showed that RAR agonists promoted adipogenesis by upregulating the expression of CCAAT/enhancer-binding protein β (C/EBPβ) in the early stages, but blocked adipogenesis at a later stage in human bone marrow mesenchymal stem cells (hBMSCs). RXR agonists promoted adipogenesis at all time points in hBMSCs. The effect of RAR agonists was mediated mainly by the RARβ subtype. RAR agonists, in contrast to RXR agonists, significantly promoted the expression of RARβ...
April 15, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28419442/characterization-of-runx2-phosphorylation-sites-required-for-tgf-%C3%AE-1-mediated-stimulation-of-matrix-metalloproteinase-13-expression-in-osteoblastic-cells
#18
B Arumugam, M Vairamani, N C Partridge, N Selvamurugan
Transforming growth factor-beta1 (TGF-β1), a highly abundant growth factor in skeletal tissues, stimulates matrix metalloproteinase-13 (MMP-13) expression in osteoblastic cells. MMP-13 plays a critical role in bone remodeling. Runx2, a bone transcription factor, is required for TGF-β1-mediated stimulation of MMP-13 expression in osteoblastic cells. In this study, the molecular mechanism responsible for TGF-β1-stimulation of MMP-13 expression via Runx2 in osteoblastic cells was elucidated. TGF-β1 stimulated the phosphorylation of Runx2 at serine amino acids, and ERK inhibition blocked this effect in rat (UMR106-01) and human (MG-63) osteoblastic cells...
April 17, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28419140/niche-matters-the-comparison-between-bone-marrow-stem-cells-and-endometrial-stem-cells-and-stromal-fibroblasts-reveal-distinct-migration-and-cytokine-profiles-in-response-to-inflammatory-stimulus
#19
Masuma Khatun, Anna Sorjamaa, Marika Kangasniemi, Meeri Sutinen, Tuula Salo, Annikki Liakka, Petri Lehenkari, Juha S Tapanainen, Olli Vuolteenaho, Joseph C Chen, Siri Lehtonen, Terhi T Piltonen
OBJECTIVE: Intrinsic inflammatory characteristics play a pivotal role in stem cell recruitment and homing through migration where the subsequent change in niche has been shown to alter these characteristics. The bone marrow mesenchymal stem cells (bmMSCs) have been demonstrated to migrate to the endometrium contributing to the stem cell reservoir and regeneration of endometrial tissue. Thus, the aim of the present study was to compare the inflammation-driven migration and cytokine secretion profile of human bmMSCs to endometrial mesenchymal stem cells (eMSCs) and endometrial fibroblasts (eSFs)...
2017: PloS One
https://www.readbyqxmd.com/read/28418929/plurihormonal-cells-of-normal-anterior-pituitary-facts-and-conclusions
#20
Lubov B Mitrofanova, Petr V Konovalov, Julia S Krylova, Victoria O Polyakova, Igor M Kvetnoy
INTRODUCTION: plurihormonality of pituitary adenomas is an ability of adenoma cells to produce more than one hormone. After the immunohistochemical analysis had become a routine part of the morphological study, a great number of adenomas appeared to be multihormonal in actual practice. We hypothesize that the same cells of a normal pituitary gland releases several hormones simultaneously. OBJECTIVE: To analyse a possible co-expression of hormones by the cells of the normal anterior pituitary of adult humans in autopsy material...
March 23, 2017: Oncotarget
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