Synthesis of α-(3, 5-Dimethoxyphenyl)-β-monomethylaminoethanol, an Uterus Contraction Agent
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Integrin alpha v beta 3 differentially regulates adhesive and phagocytic functions of the fibronectin receptor alpha 5 beta 1
The plasma protein fibronectin is an important opsonin in wound repair and host defense. To better understand the process of fibronectin-mediated phagocytosis, we have transfected K562 cells, which endogenously express alpha 5 beta 1, with alpha v beta 3. In these transfectants, antibodies to alpha v beta 3 block phagocytosis of fibronectin-opsonized beads completely, even though half the inges...
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Using a K562 cell transfection model, we have previously described a novel relationship between the integrins alpha v beta 3 and alpha 5 beta 1. alpha v beta 3 ligation was able to inhibit alpha 5 beta 1-mediated phagocytosis without effect on alpha 5 beta 1-mediated adhesion. The alpha v beta 3-dependent inhibition apparently required a signal transduction cascade as it was reversed by inhibit...
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The mutagenicity of oxysterols, cholesterol-3beta,5alpha,6beta-triol (alpha-Triol), 7-keto-cholesterol (7-Keto) and cholesterol-5alpha,6alpha-epoxide (alpha-Epox) were examined by the Ames method and chromosome aberration test in this study. Only alpha-Triol concentration-dependently caused an increase of bacterial revertants in the absence of metabolic activating enzymes (S9), but not 7-keto a...
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In a systematic effort to design potent inhibitors of the anti-apoptotic tyrosine kinase BTK (Bruton's tyrosine kinase) as anti-leukemic agents with apoptosis-promoting and chemosensitizing properties, we have constructed a three-dimensional homology model of the BTK kinase domain. Our modeling studies revealed a distinct rectangular binding pocket near the hinge region of the BTK kinase domain...
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The localization of five integrin subunit proteins was studied in human erythroleukemia (HEL) cells spreading on various culture substrata in the presence of 12-O-tetradecanoylphorbol-13-acetate (TPA) and the absence of serum. The cells readily adhered on fibronectin, but TPA was needed for adherence on vitronectin and for the spreading of the cells on both substrata. Indirect immunofluorescenc...
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ژورنال
عنوان ژورنال: YAKUGAKU ZASSHI
سال: 1956
ISSN: 0031-6903,1347-5231
DOI: 10.1248/yakushi1947.76.9_1094