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https://www.readbyqxmd.com/read/28339537/stimulatory-effects-of-fibroblast-growth-factor-2-on-proliferation-and-migration-of-uterine-luminal-epithelial-cells-during-early-pregnancy%C3%A2-%C3%A2
#1
Whasun Lim, Hyocheol Bae, Fuller W Bazer, Gwonhwa Song
Fibroblast growth factor 2 (FGF2) is a mitogen that induces proliferation, differentiation, and migration of cells, as well as angiogenesis and carcinogenesis via autocrine or paracrine actions. Fibroblast growth factor 2 expression is abundant in porcine conceptuses and endometrium during the estrous cycle and peri-implantation period of pregnancy. However, its intracellular actions in uterine epithelial cells have not been reported. The results of this study indicated abundant expression of FGFR1 and FGFR2 predominantly in uterine luminal and glandular epithelia during early pregnancy and that their expression decreased with increasing parity of the sows...
December 20, 2016: Biology of Reproduction
https://www.readbyqxmd.com/read/28333279/inhibition-of-pim1-kinase-attenuates-inflammation-induced-pro-labour-mediators-in-human-fetal-membranes-in-vitro
#2
Ratana Lim, Gillian Barker, Martha Lappas
STUDY QUESTION: Does proviral integration site for Moloney murine leukemic virus (PIM)1 kinase play a role in regulating the inflammatory processes of human labour and delivery? SUMMARY ANSWER: PIM1 kinase plays a critical role in fetal membranes in regulating pro-inflammatory and pro-labour mediators. WHAT IS KNOWN ALREADY: Infection and inflammation have strong causal links to preterm delivery by stimulating pro-inflammatory cytokines and collagen degrading enzymes, which can lead to rupture of membranes...
March 9, 2017: Molecular Human Reproduction
https://www.readbyqxmd.com/read/28322254/stk38-modulates-rbm24-protein-stability-to-regulate-sarcomere-assembly-in-cardiomyocytes
#3
Jing Liu, Xu Kong, Lee Yew Mun, Zhang Meng Kai, Guo Li Yan, Yu Lin, Teck Kwang Lim, Qingsong Lin, Xiu Qin Xu
RNA-binding protein Rbm24 is a key regulator of heart development and required for sarcomere assembly and heart contractility. Yet, its underlying mechanism remains unclear. Here, we link serine/threonine kinase 38 (Stk38) signaling to the regulation of Rbm24 by showing that Rbm24 phosphorylation and its function could be modulated by Stk38. Using co-immunoprecipitation coupled with mass spectrometry technique, we identified Stk38 as an endogenous binding partner of Rbm24. Stk38 knockdown resulted in decreased Rbm24 protein level in cardiomyocytes...
March 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28300846/regulation-of-rhoa-activity-by-the-cellular-prion-protein
#4
Hee-Jun Kim, Hong-Seok Choi, Jeong-Ho Park, Mo-Jong Kim, Hyoung-Gon Lee, Robert Bob Petersen, Yong-Sun Kim, Jae-Bong Park, Eun-Kyoung Choi
The cellular prion protein (PrP(C)) is a highly conserved glycosylphosphatidylinositol (GPI)-anchored membrane protein that is involved in the signal transduction during the initial phase of neurite outgrowth. The Ras homolog gene family member A (RhoA) is a small GTPase that is known to have an essential role in regulating the development, differentiation, survival, and death of neurons in the central nervous system. Although recent studies have shown the dysregulation of RhoA in a variety of neurodegenerative diseases, the role of RhoA in prion pathogenesis remains unclear...
March 16, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28287403/rankl-coordinates-multiple-osteoclastogenic-pathways-by-regulating-expression-of-ubiquitin-ligase-rnf146
#5
Yoshinori Matsumoto, Jose Larose, Oliver A Kent, Melissa Lim, Adele Changoor, Lucia Zhang, Yaryna Storozhuk, Xiaohong Mao, Marc D Grynpas, Feng Cong, Robert Rottapel
Bone undergoes continuous remodeling due to balanced bone formation and resorption mediated by osteoblasts and osteoclasts, respectively. Osteoclasts arise from the macrophage lineage, and their differentiation is dependent on RANKL, a member of the TNF family of cytokines. Here, we have provided evidence that RANKL controls the expression of 3BP2, an adapter protein that is required for activation of SRC tyrosine kinase and simultaneously coordinates the attenuation of β-catenin, both of which are required to execute the osteoclast developmental program...
March 13, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28277616/-e-2-methoxy-4-3-4-methoxyphenyl-prop-1-en-1-yl-phenol-suppresses-ovarian-cancer-cell-growth-via-inhibition-of-erk-and-stat3
#6
Jie Zheng, Dong Ju Son, Hye Lim Lee, Hee Pom Lee, Tae Hoon Kim, Jung Heun Joo, Young Wan Ham, Wun Jae Kim, Jae Kyung Jung, Sang-Bae Han, Jin Tae Hong
In the present study, we synthesized several non-aldehyde analogues of (E)-2,4-bis(p-hydroxyphenyl)-2-butenal which showed anti-cancer effect. Interestingly, among the 16 compounds, we found that (E)-2-methoxy-4-(3-(4-methoxyphenyl)prop-1-en-1-yl)phenol (MMPP) showed the most significant anti-proliferative effect on PA-1 and SK-OV-3 ovarian epithelial cancer cells. MMPP treatment (0-15 µg/mL) induced apoptotic cell death, enhanced the expression of cleaved caspase-3 and cleaved caspase-9 in a concentration dependent manner...
March 9, 2017: Molecular Carcinogenesis
https://www.readbyqxmd.com/read/28257933/genetic-ablation-of-the-mammalian-sterile-20-like-kinase-1-mst1-improves-cell-reprogramming-efficiency-and-increases-induced-pluripotent-stem-cell-proliferation-and-survival
#7
Abigail Robertson, Tamer M A Mohamed, Zeinab El Maadawi, Nicholas Stafford, Thuy Bui, Dae-Sik Lim, Elizabeth J Cartwright, Delvac Oceandy
Adult fibroblasts can be reprogrammed into induced pluripotent stem cells (iPSC) for use in various applications. However, there are challenges in iPSC generation including low reprogramming efficiency, yield, cell survival and viability. Since the Hippo signalling pathway is a key pathway involved in regulating cell proliferation and survival, we here test whether modification of the Hippo pathway will enhance the efficiency of iPSC generation and improve their survival. The Hippo pathway was modified by genetic ablation of the mammalian sterile-20 like kinase 1 (Mst1), a major component of the pathway...
February 27, 2017: Stem Cell Research
https://www.readbyqxmd.com/read/28236980/significance-of-immune-checkpoint-proteins-in-egfr-mutant-non-small-cell-lung-cancer
#8
Ross A Soo, Hye Ryun Kim, Bernadette Reyna Asuncion, Zul Fazreen, Mohamed Feroz Mohd Omar, Maria Cynthia Herrera, Joey Sze Yun Lim, Grace Sia, Richie Soong, Byoung-Chul Cho
OBJECTIVES: To characterize the expression of PD-L1, PD-1, cytotoxic T-lymphocyte-associated protein 4 (CTLA-4) and T-cell immunoglobulin and mucin-domain containing-3 (TIM3) in epidermal growth factor receptor (EGFR) mutant non-small cell lung cancer (NSCLC). MATERIALS AND METHODS: Samples from 90 patients with newly diagnosed advanced stage NSCLC harboring EGFR mutations and treated with first line EGFR tyrosine kinase inhibitors (TKI) within 3 months of diagnosis were stained for CTLA-4, PD-L1, PD-1, TIM-3 and CD3 expression by immunohistochemistry...
March 2017: Lung Cancer: Journal of the International Association for the Study of Lung Cancer
https://www.readbyqxmd.com/read/28230853/mesenchymal-stromal-cells-inhibit-cd25-expression-via-the-mtor-pathway-to-potentiate-t-cell-suppression
#9
Hyun Seung Yoo, Kyuheon Lee, Kwangmin Na, Yong Xu Zhang, Hyun-Ja Lim, TacGhee Yi, Sun U Song, Myung-Shin Jeon
Mesenchymal stromal cells (MSCs) are known to suppress T-cell activation and proliferation. Several studies have reported that MSCs suppress CD25 expression in T cells. However, the molecular mechanism underlying MSC-mediated suppression of CD25 expression has not been fully examined. Here, we investigated the mTOR pathway, which is involved in CD25 expression in T cells. We showed that MSCs inhibited CD25 expression, which was restored in the presence of an inducible nitric oxide synthase (iNOS) inhibitor...
February 23, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28213961/chrysin-induces-death-of-prostate-cancer-cells-by-inducing-ros-and-er-stress
#10
Soomin Ryu, Whasun Lim, Fuller W Bazer, Gwonhwa Song
Chrysin is a natural flavone found in numerous plant extracts, honey and propolis that has multiple biological activities including anti-cancer effects. Understanding of biological mechanisms mediated in response to chrysin in cancerous cells may provide novel insight into chemotherapeutic approaches with reduced side effects in cancers. In the present study, we investigated functional roles of chrysin in progression of prostate cancer cells using DU145 and PC-3 cell lines. The results showed that chrysin induced apoptosis of cells evidenced by DNA fragmentation and increasing the population of both DU145 and PC-3 cells in the sub-G1 phase of the cell cycle...
February 18, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28199362/flowtaxis-of-osteoblast-migration-under-fluid-shear-and-the-effect-of-rhoa-kinase-silencing
#11
Brandon D Riehl, Jeong Soon Lee, Ligyeom Ha, Il Keun Kwon, Jung Yul Lim
Despite the important role of mechanical signals in bone remodeling, relatively little is known about how fluid shear affects osteoblastic cell migration behavior. Here we demonstrated that MC3T3-E1 osteoblast migration could be activated by physiologically-relevant levels of fluid shear in a shear stress-dependent manner. Interestingly, shear-sensitive osteoblast migration behavior was prominent only during the initial period after the onset of the steady flow (for about 30 min), exhibiting shear stress-dependent migration speed, displacement, arrest coefficient, and motility coefficient...
2017: PloS One
https://www.readbyqxmd.com/read/28185954/wip1-directly-dephosphorylates-nlk-and-increases-wnt-activity-during-germ-cell-development
#12
Seung-Ju Cho, Bok-Sik Cha, Ok-Seon Kwon, Jisun Lim, Dong-Myung Shin, Dong Wook Han, Tohru Ishitani, Eek-Hoon Jho, Albert J Fornace, Hyuk-Jin Cha
Mice null for wild-type p53-induced phosphatase 1 (WIP1) display defects in testis development and spermatogenesis, resulting in reduced fertility. However, the molecular mechanism underlying these abnormalities in the testis remains uncharacterized. We report that the phosphatase activity of WIP1 increases Wnt activity through Nemo-like kinase (NLK). WIP1 directly interacted with NLK, which is highly homologous to p38 MAPK, a WIP1 substrate, and dephosphorylated its activation site. The WIP1-mediated inhibition of NLK activity markedly decreased the phosphorylation of lymphoid enhancer-binding factor 1 (LEF1), enhancing its interaction with β-catenin...
April 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28185804/7-cyclopentyl-5-4-phenoxyphenyl-7h-pyrrolo-2-3-d-pyrimidin-4-ylamine-inhibits-the-proliferation-and-migration-of-vascular-smooth-muscle-cells-by-suppressing-erk-and-akt-pathways
#13
Hyang-Hee Seo, Sang Woo Kim, Chang Youn Lee, Kyu Hee Lim, Jiyun Lee, Soyeon Lim, Seahyoung Lee, Ki-Chul Hwang
Excessive vascular smooth muscle cell (VSMC) proliferation and migration after vascular injury significantly contributes to the development of occlusive vascular disease. Therefore, inhibiting the proliferation and migration of VSMCs is a validated therapeutic modality for occlusive vascular disease such as atherosclerosis and restenosis. In the present study, we screened chemical compounds for their anti-proliferative effects on VSMCs using multiple approaches, such as MTT assays, wound healing assays, and trans-well migration assays...
February 6, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28167507/parp-inhibitor-upregulates-pd-l1-expression-and-enhances-cancer-associated-immunosuppression
#14
Shiping Jiao, Weiya Xia, Hirohito Yamaguchi, Yongkun Wei, Mei-Kuang Chen, Jung-Mao Hsu, Jennifer L Hsu, Wen-Hsuan Yu, Yi Du, Heng-Huan Lee, Chia-Wei Li, Chao-Kai Chou, Seung-Oe Lim, Shih-Shin Chang, Jennifer K Litton, Banu Arun, Gabriel N Hortobagyi, Mien-Chie Hung
PURPOSE: To explore whether a crosstalk exists between PARP inhibition and PD-L1/ PD-1 immune checkpoint axis, and determine if blockade of PD-L1/ PD-1 potentiates PARP inhibitor (PARPi) in tumor suppression. EXPERIMENTAL DESIGN: Breast cancer cell lines, xenograft tumors and syngeneic tumors treated with PARPi were assessed for PD-L1 expression by immunoblotting, immunohistochemistry and FACS analyses. The phospho-kinase antibody array screen was used to explore the underlying mechanism of PARPi-induced PD-L1 upregulation...
February 6, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28162947/fty720-supplementation-partially-improves-erectile-dysfunction-in-rats-with-streptozotocin-induced-type-1-diabetes-through-inhibition-of-endothelial-dysfunction-and-corporal-fibrosis
#15
Kai Cui, Yajun Ruan, Tao Wang, Ke Rao, Zhong Chen, Shaogang Wang, Jihong Liu
INTRODUCTION: Erectile dysfunction (ED) in patients with diabetes mellitus (DM) seriously affects their quality of life. However, these patients show a poor effect rate for oral phosphodiesterase type 5 inhibitors. Thus, new treatment methods are urgently needed. Fingolimod hydrochloride (FTY720) was approved in 2010 for the treatment of patients with the relapsing-remitting form of multiple sclerosis. AIM: To investigate whether FTY720 supplementation could ameliorate ED induced by DM (DMED)...
February 2, 2017: Journal of Sexual Medicine
https://www.readbyqxmd.com/read/28161468/capillarisin-augments-anti-oxidative-and-anti-inflammatory-responses-by-activating-nrf2-ho-1-signaling
#16
Jinhee Kim, Juhee Lim, Bok Yun Kang, Kiwon Jung, Hyun Jin Choi
Capillarisin is a naturally isolated chromone, which is one of the major bioactive constituents of Artemisia capillaries. Capillarisin has antioxidant, anti-inflammatory, and anti-tumor potential, but the underlying molecular mechanisms remain largely unclear. In the present study, we demonstrate that the transcription factor nuclear factor E2-related factor-2 (Nrf2) is activated by capillarisin in neuroblastoma SH-SY5Y cells and microglial BV2 cells. Capillarisin leads to Nrf2 phosphorylation, subsequent activation of antioxidant response element (ARE)-mediated transcription, and up-regulation of downstream molecules, such as heme oxygenase-1 (HO-1) and NAD(P)H:quinone oxidoreductase 1...
February 1, 2017: Neurochemistry International
https://www.readbyqxmd.com/read/28150859/brain-derived-neurotrophic-factor-improves-proliferation-of-endometrial-epithelial-cells-by-inhibition-of-endoplasmic-reticulum-stress-during-early-pregnancy
#17
Whasun Lim, Hyocheol Bae, Fuller W Bazer, Gwonhwa Song
Brain-derived neurotrophic factor (BDNF) is a member of the neurotrophin family binds to two transmembrane receptors; neurotrophic receptor tyrosine kinase 2 (NTRK2) with high affinity and p75 with low affinity. Although BDNF-NTRK2 signaling in the central nervous system is known, signaling in the female reproductive system is unknown. Therefore, we determined effects of BDNF on porcine endometrial luminal epithelial (pLE) cells isolated from Day 12 of pregnancy, as well as expression of BDNF and NTRK2 in endometria of cyclic and pregnant pigs...
February 2, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28147342/inhibition-of-cdk8-mediator-kinase-suppresses-estrogen-dependent-transcription-and-the-growth-of-estrogen-receptor-positive-breast-cancer
#18
Martina S J McDermott, Alexander A Chumanevich, Chang-Uk Lim, Jiaxin Liang, Mengqian Chen, Serena Altilia, David Oliver, James M Rae, Michael Shtutman, Hippokratis Kiaris, Balázs Győrffy, Igor B Roninson, Eugenia V Broude
Hormone therapy targeting estrogen receptor (ER) is the principal treatment for ER-positive breast cancers. However, many cancers develop resistance to hormone therapy while retaining ER expression. Identifying new druggable mediators of ER function can help to increase the efficacy of ER-targeting drugs. Cyclin-dependent kinase 8 (CDK8) is a Mediator complex-associated transcriptional regulator with oncogenic activities. Expression of CDK8, its paralog CDK19 and their binding partner Cyclin C are negative prognostic markers in breast cancer...
January 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28146407/immunostimulatory-activity-of-opuntia-ficus-indica-var-saboten-cladodes-fermented-by-lactobacillus-plantarum-and-bacillus-subtilis-in-raw-264-7-macrophages
#19
Joon-Ho Hwang, Sang-Bin Lim
To increase the functionality of Opuntia ficus-indica var. saboten cladodes, it was fermented by Lactobacillus plantarum and Bacillus subtilis. Eighty percent methanol extracts were investigated for their effects on nitric oxide (NO) production, cytokine secretion, nuclear factor-κB (NF-κB) activity, and mitogen-activated protein kinase (MAPK) phosphorylation in RAW 264.7 cells. Methanol extracts of L. plantarum culture medium (LPCME) and B. subtilis culture medium (BSCME) did not affect lipopolysaccharide (LPS)-induced NO production but, at 500 μg/mL, increased interferon (IFN)-γ-induced NO production by 55...
February 2017: Journal of Medicinal Food
https://www.readbyqxmd.com/read/28142230/compound-k-attenuates-glucose-intolerance-and-hepatic-steatosis-through-ampk-dependent-pathways-in-type-2-diabetic-oletf-rats
#20
Yoo-Cheol Hwang, Da-Hee Oh, Moon Chan Choi, Sang Yeoul Lee, Kyu-Jeong Ahn, Ho-Yeon Chung, Sung-Jig Lim, Sung Hyun Chung, In-Kyung Jeong
Background/Aims: Non-alcoholic fatty liver disease is associated with insulin resistance. Compound K (CK) is the final metabolite of panaxadiol ginsenosides that have been shown to exert antidiabetic effects. However, the molecular mechanism of the antidiabetic effects in the liver have not been elucidated; further, whether CK has beneficial effects in hepatosteatosis remains unclear. Therefore, we evaluated the effect of CK on hepatosteatosis as well as its mechanism in high-fat diet (HFD)-fed type 2 diabetic Otsuka Long-Evans Tokushima Fatty (OLETF) rats...
February 1, 2017: Korean Journal of Internal Medicine
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