PMID- 11682614 OWN - NLM STAT- MEDLINE DCOM- 20011231 LR - 20220215 IS - 0021-9533 (Print) IS - 0021-9533 (Linking) VI - 114 IP - Pt 19 DP - 2001 Oct TI - Noradrenaline and alpha-adrenergic signaling induce the hsp70 gene promoter in mollusc immune cells. PG - 3557-64 AB - Expression of heat shock proteins (hsp) is a homeostatic mechanism induced in both prokaryotic and eukaryotic cells in response to metabolic and environmental insults. A growing body of evidence suggests that in mammals, the hsp response is integrated with physiological responses through neuroendocrine signaling. In the present study, we have examined the effect of noradrenaline (NA) on the hsp70 response in mollusc immune cells. Oyster and abalone hemocytes transfected with a gene construct containing a gastropod hsp70 gene promoter linked to the luciferase reporter-gene were exposed to physiological concentrations of NA, or to various alpha- and beta-adrenoceptor agonists and antagonists. Results show that NA and alpha-adrenergic stimulations induced the expression of luciferase in transfected mollusc immunocytes. Furthermore, exposure of hemocytes to NA or to the alpha-adrenoceptor agonist phenylephrine (PE) resulted in the expression of the inducible isoform of the hsp70 protein. Pertussis toxin (PTX), the phospholipase C (PLC) inhibitor U73122, the protein kinase C (PKC) inhibitor calphostin C, the Ca(2+)-dependent PKC inhibitor Go 6976 and the phosphatidylinositol 3-kinase (PI 3-kinase) inhibitor LY294002 blocked the PE-mediated induction of the hsp70 gene promoter. These results suggest that alpha-adrenergic signaling induces the transcriptionnal upregulation of hsp70 in mollusc hemocytes through a PTX-sensitive G-protein, PLC, Ca(2+)-dependent PKC and PI 3-kinase. Thus, a functional link exists between neuroendocrine signaling and the hsp70 response in mollusc immune cells. FAU - Lacoste, A AU - Lacoste A AD - Station Biologique de Roscoff, CNRS-Universite Paris VI-INSU, Place Georges Teissier, BP 74, F-29682 Roscoff Cedex, France. lacoste@sb-roscoff.fr FAU - De Cian, M C AU - De Cian MC FAU - Cueff, A AU - Cueff A FAU - Poulet, S A AU - Poulet SA LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - England TA - J Cell Sci JT - Journal of cell science JID - 0052457 RN - 0 (Adrenergic alpha-Agonists) RN - 0 (Adrenergic alpha-Antagonists) RN - 0 (Adrenergic beta-Agonists) RN - 0 (Adrenergic beta-Antagonists) RN - 0 (Carbazoles) RN - 0 (Chromones) RN - 0 (Enzyme Inhibitors) RN - 0 (Estrenes) RN - 0 (Flavonoids) RN - 0 (HSP70 Heat-Shock Proteins) RN - 0 (Indoles) RN - 0 (Isoquinolines) RN - 0 (Morpholines) RN - 0 (Naphthalenes) RN - 0 (Phosphodiesterase Inhibitors) RN - 0 (Pyrrolidinones) RN - 0 (Sulfonamides) RN - 0 (Virulence Factors, Bordetella) RN - 112648-68-7 (1-(6-((3-methoxyestra-1,3,5(10)-trien-17-yl)amino)hexyl)-1H-pyrrole-2,5-dione) RN - 136194-77-9 (Go 6976) RN - 1WS297W6MV (Phenylephrine) RN - 31M2U1DVID (2-(4-morpholinyl)-8-phenyl-4H-1-benzopyran-4-one) RN - 9Y8NXQ24VQ (Propranolol) RN - EC 1.13.12.- (Luciferases) RN - EC 2.4.2.31 (Pertussis Toxin) RN - I271P23G24 (calphostin C) RN - L628TT009W (Isoproterenol) RN - M876330O56 (N-(2-(4-bromocinnamylamino)ethyl)-5-isoquinolinesulfonamide) RN - SJE1IO5E3I (2-(2-amino-3-methoxyphenyl)-4H-1-benzopyran-4-one) RN - X4W3ENH1CV (Norepinephrine) RN - XM03YJ541D (Prazosin) SB - IM MH - Adrenergic alpha-Agonists/*pharmacology MH - Adrenergic alpha-Antagonists/pharmacology MH - Adrenergic beta-Agonists/pharmacology MH - Adrenergic beta-Antagonists/pharmacology MH - Animals MH - Carbazoles/pharmacology MH - Chromones/pharmacology MH - Enzyme Inhibitors/pharmacology MH - Estrenes/pharmacology MH - Flavonoids/pharmacology MH - Gene Expression Regulation/physiology MH - HSP70 Heat-Shock Proteins/*genetics MH - Hemocytes/cytology/*immunology MH - Indoles/pharmacology MH - Isoproterenol/pharmacology MH - Isoquinolines/pharmacology MH - Luciferases/genetics MH - Morpholines/pharmacology MH - Naphthalenes/pharmacology MH - Norepinephrine/*pharmacology MH - Ostreidae MH - Pertussis Toxin MH - Phenylephrine/pharmacology MH - Phosphodiesterase Inhibitors/pharmacology MH - Prazosin/pharmacology MH - Promoter Regions, Genetic/*genetics MH - Propranolol/pharmacology MH - Pyrrolidinones/pharmacology MH - Signal Transduction/drug effects/immunology MH - *Sulfonamides MH - Transfection MH - Virulence Factors, Bordetella/pharmacology EDAT- 2001/10/30 10:00 MHDA- 2002/01/05 10:01 CRDT- 2001/10/30 10:00 PHST- 2001/10/30 10:00 [pubmed] PHST- 2002/01/05 10:01 [medline] PHST- 2001/10/30 10:00 [entrez] AID - 10.1242/jcs.114.19.3557 [doi] PST - ppublish SO - J Cell Sci. 2001 Oct;114(Pt 19):3557-64. doi: 10.1242/jcs.114.19.3557.