نتایج جستجو برای: lpa

تعداد نتایج: 2310  

Journal: :PLoS ONE 2009
Mandi M. Murph Wenbin Liu Shuangxing Yu Yiling Lu Hassan Hall Bryan T. Hennessy John Lahad Marci Schaner Åslaug Helland Gunnar Kristensen Anne-Lise Børresen-Dale Gordon B. Mills

BACKGROUND Lysophosphatidic acid (LPA) governs a number of physiologic and pathophysiological processes. Malignant ascites fluid is rich in LPA, and LPA receptors are aberrantly expressed by ovarian cancer cells, implicating LPA in the initiation and progression of ovarian cancer. However, there is an absence of systematic data critically analyzing the transcriptional changes induced by LPA in ...

Journal: :The Journal of pharmacology and experimental therapeutics 2011
J S Swaney C Chapman L D Correa K J Stebbins A R Broadhead G Bain A M Santini J Darlington C D King C S Baccei C Lee T A Parr J R Roppe T J Seiders J Ziff P Prasit J H Hutchinson J F Evans D S Lorrain

Lysophosphatidic acid (LPA) is a bioactive phospholipid that signals through a family of at least six G protein-coupled receptors designated LPA₁₋₆. LPA type 1 receptor (LPA₁) exhibits widespread tissue distribution and regulates a variety of physiological and pathological cellular functions. Here, we evaluated the in vitro pharmacology, pharmacokinetic, and pharmacodynamic properties of the LP...

2004
Dafang Bian Shibing Su Chitladda Mahanivong Robert K. Cheng Qiwei Han Zhixing K. Pan Peiqing Sun Shuang Huang

Lysophosphatidic acid (LPA) is present at high concentrations in ascites and plasma of ovarian cancer patients. Studies conducted in experimental models demonstrate that LPA promotes ovarian cancer invasion/ metastasis by up-regulating protease expression, elevating protease activity, and enhancing angiogenic factor expression. In this study, we investigated the effect of LPA on ovarian cancer ...

2011
Cliona M. Stapleton Douglas G. Mashek Shuli Wang Cynthia A. Nagle Gary W. Cline Philippe Thuillier Lisa M. Leesnitzer Lei O. Li Julie B. Stimmel Gerald I. Shulman Rosalind A. Coleman

Lysophosphatidic acid (LPA) is an agonist for peroxisome proliferator activated receptor-γ (PPARγ). Although glycerol-3-phosphate acyltransferase-1 (GPAT1) esterifies glycerol-3-phosphate to form LPA, an intermediate in the de novo synthesis of glycerolipids, it has been assumed that LPA synthesized by this route does not have a signaling role. The availability of Chinese Hamster Ovary (CHO) ce...

Journal: :Free radical biology & medicine 2010
Jerry A Saunders LeAnn C Rogers Chananat Klomsiri Leslie B Poole Larry W Daniel

Lysophosphatidic acid (LPA) is produced by tumor cells and is present in the ascites fluid of ovarian cancer patients. To determine the role of endogenous LPA in the ovarian cancer cell line SKOV3, we treated cells with the LPA receptor antagonist VPC32183 and found that it inhibited cell growth and induced apoptosis. Exogenous LPA further stimulated ERK and Akt phosphorylation and NF-κB activi...

2016
Christian Carpéné Jean Galitzky Jean Sébastien Saulnier-Blache

Lysophosphatidic acid (LPA) is a bioactive phospholipid that activates cell proliferation, differentiation and migration via the activation of its membrane-bound receptors (LPAR 1 to 6) expressed in various tissues and organs. Adipose tissue produces LPA, which, in turn, increases preadipocyte proliferation, mainly through the stimulation of LPA1R. However, while LPA plasma levels increase with...

Journal: :Molecular pharmacology 2000
J J Contos I Ishii J Chun

Lysophosphatidic acid (LPA) is a simple bioactive phospholipid with diverse physiological actions on many cell types. LPA induces proliferative and/or morphological effects and has been proposed to be involved in biologically important processes including neurogenesis, myelination, angiogenesis, wound healing, and cancer progression. LPA acts through specific G protein-coupled, seven-transmembr...

Journal: :Professional and practice-based learning 2022

This chapter gives an applied introduction to latent profile and class analysis (LPA/LCA). LPA/LCA are model-based methods for clustering individuals in unobserved groups. Their primary goals probing whether and, if so, how many classes can be identified the data estimating their proportional size response profiles. Moreover, membership serve as a predictor or outcome external variables. Substa...

Journal: :American journal of physiology. Cell physiology 2007
Min Chen L Nicole Towers Kathleen L O'Connor

Lysophosphatidic acid (LPA) acts via binding to specific G protein-coupled receptors and has been implicated in the biology of breast cancer. Here, we characterize LPA receptor expression patterns in common established breast cancer cell lines and their contribution to breast cancer cell motility. By measuring expression of the LPA receptors LPA1, LPA2, and LPA3 with real-time quantitative PCR,...

2014
Yijun Huang Xuemei Liu

BACKGROUND The purpose of this study was to assess the association between leisure-time physical activity (LPA) and the risk of metabolic syndrome (MS). METHODS Prospective cohort studies of the association between LPA and the risk of MS were retrieved from the PubMed and Embase databases up to 12 August 2013. The statistical analysis in this study was performed using Stata 11.0 software. Odd...

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