Characterization of the glycogenolysis elicited by vasoactive intestinal peptide, noradrenaline and adenosine in primary cultures of mouse cerebral cortical astrocytes
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In recent years a vast array of experimental evidence has indicated the presence of functional receptors for neurotransmitters on nonneuronal cells, in particular astrocytes. The two neurotransmitters vasoactive intestinal peptide (VIP) and noradrenaline ( ...
We studied changes in the three types of Fc gamma receptor (FcR) on the THP-1 human monocytic leukemia cells, after incubation with the phorbol ester, PMA, which has been shown to alter the expression of several genes in these cells. THP-1 cells constituti ...
Previous reports have demonstrated that glutamate stimulates c-fos mRNA expression in primary cultures of mouse cerebral cortical neurons. We show here that vasoactive intestinal peptide (VIP) induces c-fos mRNA expression; however, this effect of VIP is c ...
Various cell surface receptors are phosphorylated upon binding of their ligand, and this phosphorylation seems to be involved in the signal transduction or in the feedback regulation of this signal. The possibility of a phosphorylation of the human IFN-gam ...
Transcription factor AP-1 is constituted by the various products of the fos and jun proto-oncogene family members, which associate as dimers to bind with variable efficiency to 12-O-tetradecanoyl phorbol 13-acetate (TPA)-responsive promoter elements (TREs) ...
Vasoactive intestinal peptide (VIP) and noradrenaline (NA) have been previously shown to promote glycogenolysis in mouse cerebral cortex (Magistretti, 1990). This action, which is fully expressed within a few minutes, is exerted on astrocytes (Sorg and Mag ...
The binding characteristics of a monoiodinated form of vasoactive intestinal peptide (M-[125I]VIP) to the membranes of astrocytes, intraparenchymal microvessels and synaptosomes were analyzed in mouse cerebral cortex. Binding to astrocytes, studied in prim ...
Transcription factor AP-1 is inducible by phorbol esters and thus could be considered to be one final target of the protein kinase C signal transduction pathway. AP-1 consists of the products of the fos and jun oncogenes, which associate as dimers to bind ...
Expression of the human (hu) IFN-gamma-R has been studied in Raji and IM9 cells (two B lymphoblastoid cell lines) and in THP-1 cells (a monocytic cell line) with respect to IFN-gamma binding sites, receptor protein and mRNA levels. Although, in these three ...
Adenosine triphosphate (ATP) promotes glycogenolysis in primary cultures of mouse cerebral cortical astrocytes with an EC50 of 1.5 microM. A pharmacological analysis indicates an involvement of purinergic P2Y receptors in this action of ATP. Application of ...
