... hours. The remaining half was used for western blot analysis by anti-human PTPN13 antibodies. * Author for correspondence (e-mail: [email protected] ) 22 7 2004 © 2004. 2004 Xenopus oocyte Cyclic AMP Meiotic resumption Tyrosine phosphatase During...

... of retinal explants within 2 days in vitro and was prevented by inhibition of protein synthesis. Simultaneously, protein synthesis blockade induced apoptosis among the undamaged cells of the neuroblastic layer, which could be selectively prevented by an increase in intracellular cyclic AMP. Both...

... and Cell Biology, Temple University School of Medicine, Philadelphia, PA 19140, USA 03 01 1995 © 1995 by Company of Biologists 1995 mouse sperm capacitation fertilization in vitro fertilization tyrosine phosphorylation cyclic AMP protein kinase A Sperm capacitation...

... formation in Schwann cells is not well understood. Our previous experiments on rat Schwann cells in vitro, using serum-free defined medium, showed that a myelinrelated protein phenotype could be induced in early postnatal Schwann cells in culture by elevation of intracellular cyclic AMP levels...

... by signalling between the cells. A number of diffusible signal molecules have been discovered, including cyclic AMP, the chemoattractant in aggregation, and DIF-1, a novel chlorinated phenyl alkanone, which acts as a specific inducer of stalk cell differentiation. The migrating slug contains three types...

...Usha K. Srinivas; Ellen J. Henderson ABSTRACT A temperature-sensitive mutant of Dictyostelium discoideum has been isolated based on its lack of chemotaxis toward cyclic AMP at the restrictive temperature, 27°C. The mutant develops normally at the permissive temperature, 22°C, but fails to aggregate...

...John J. Tyson; J. D. Murray ABSTRACT During the aggregation phase of their life cycle, Dictyostelium discoideum amoebae communicate with each other by traveling waves of cyclic AMP. These waves are generated by an interplay between random diffusion of cyclic AMP in the extracellular milieu...

... McMorris , F. A. ( 1983 ). Cyclic AMP induction of the myelin enzyme 2’,3’-cyclic nucleotide 3’-phosphohydrolase in rat oligodendrocytes . J. Neurochem . 41 , 506 – 515 . 10.1111/j.1471-4159.1983.tb04768.x Miller , J. P. ( 1977 ). Cyclic nucleotide analogues . In Cyclic 3’,5...

... tractable system in which to identify and characterize cellular morphogens. Cyclic AMP and ammonia stimulate prespore cell differentiation and ammonia plays an additional role in repressing terminal cellular differentiation. Differentiation Inducing Factor (DIF) acts to direct prestalk cell differentiation...

... that expression of the P 0 and MBP genes in rapidly myelinating Schwann cells is sharply reduced upon withdrawal of axons, but that this expression can be substantially restored by agents that raise the intracellular concentration of cyclic AMP. We further show that Schwann cell expression of a third gene, i.e...

...Horst Grunz ABSTRACT Neural induction and differentiation has been studied using Concanavalin A, cyclic AMP, tunicamycin and calcium ionophore A 23187. Competent ectoderm of Xenopus laevis treated with Concanavalin A differentiates into neural (archencephalic) structures. Binding studies with gold...

...Cornelis J. Weijer; Antony J. Durston ABSTRACT We describe the effect of cyclic AMP on regulation of the proportion of prespore and prestalk cells in Dictyostelium discoideum . Prespore and prestalk cells from slugs were enriched on Percoll density gradients and allowed to regulate in suspension...