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7. Corrigendum to 'Neuron and neuroblast numbers and cytogenesis in the dentate gyrus of aged APPswe/PS1dE9transgenic mice:Effect of long-term treatment with paroxetine' [Neurobiol Dis. 2017; 104: 50–60](S0969996117301031)(10.1016/j.nbd.2017.04.021)

Author

Olesen, LØ, Sivasaravanaparan, M., Severino, M., Babcock, A. A., Bouzinova, E. V., West, M. J., Wiborg, O., and Finsen, B.

Abstract

The photomicrographs of the doublecortic stainings of the dentate gyrus shown in Figure 2A and Figure 2B shall be switched around. Figure 2B presents the 18-month-old WtVeh mouse and Figure 2A presents the TgVeh mouse. The authors would like to apologize for any inconvenience caused.

Published
2019

15. Altered Expression Pattern of Clock Genes in a Rat Model of Depression

Author

Christiansen, S L, Bouzinova, Elena V., Fahrenkrug, J, Wiborg, O, Christiansen, S L, Bouzinova, Elena V., Fahrenkrug, J, and Wiborg, O

Abstract

BACKGROUND: Abnormalities in circadian rhythms may be causal factors in development of major depressive disorder. The biology underlying a causal relationship between circadian rhythm disturbances and depression is slowly being unraveled. Although there is no direct evidence of dysregulation of clock gene expression in depressive patients, many studies have reported single-nucleotide polymorphisms in clock genes in these patients.METHODS: In the present study we investigated whether a depression-like state in rats is associated with alternations of the diurnal expression of clock genes. The validated chronic mild stress (CMS) animal model of depression was used to investigate rhythmic expression of three clock genes: period genes 1 and 2 (Per1 and Per2) and Bmal1. Brain and liver tissue was collected from 96 animals after 3.5 weeks of CMS (48 control and 48 depression-like rats) at a 4h sampling interval within 24h. We quantified expression of clock genes on brain sections in the prefrontal cortex, nucleus accumbens, pineal gland, suprachiasmatic nucleus, substantia nigra, amygdala, ventral tegmental area, subfields of the hippocampus, and the lateral habenula using in situ hybridization histochemistry. Expression of clock genes in the liver was monitored by real-time quantitative polymerase chain reaction (PCR).RESULTS: We found that the effect of CMS on clock gene expression was selective and region specific. Per1 exhibits a robust diurnal rhythm in most regions of interest, whereas Bmal1 and in particular Per2 were susceptible to CMS.CONCLUSION: The present results suggest that altered expression of investigated clock genes is likely associated with the induction of a depression-like state in the CMS model.

Published
2016

28. Functional analysis of a novel human serotonin transporter gene promoter in immortalized raphe cells

Author

Mortensen, O V, Thomassen, M, Larsen, M B, Whittemore, S R, and Wiborg, O

Subjects
Neurons, Serotonin Plasma Membrane Transport Proteins, Serotonin, Membrane Glycoproteins, Base Sequence, Cell Survival, Molecular Sequence Data, Membrane Transport Proteins, Nerve Tissue Proteins, Polymerase Chain Reaction, Cell Line, Rats, Blotting, Southern, Tumor Cells, Cultured, Animals, Humans, Raphe Nuclei, Cloning, Molecular, Carrier Proteins, Promoter Regions, Genetic
Abstract

Udgivelsesdato: 1999-May-7 To investigate the structural basis for genetic regulation of the human serotonin transporter gene, a 1.8 kb fragment upstream to the cap site was cloned and sequenced. The promoter possesses a polymorphic repeat region with 16 and 14 repeats, respectively. Both were cloned and characterized. The promoter sequence revealed an internal 379 bp fragment not reported in previous publications. This novel fragment contains consensus sequences for several transcription factors including SpI and GATA. DNA from 48 unrelated individuals was PCR amplified, in this region, to test for allelic variations. All were found to possess the additional 379 bp fragment. The integrity of the promoter was furthermore confirmed by genomic Southern blotting. The promoter activity was analyzed by reporter gene assays in neuronal and non-neuronal serotonergic cell lines. In immortalized serotonergic raphe neurons, RN46A, three cis-acting, cell specific, activating elements and a silencer were located. One of the activators and the silencer are located in the repeat region and one activator is positioned in the novel fragment. A fourth activating element was found to be active in both RN46A cells and in a non-neuronal serotonergic cell line, JAR. A 3.5 kb fragment from intron 1 was cloned and found to possess cell specific activity in JAR cells indicating the presence of an alternative promoter in intron 1.

Published
1999

29. Antidepressant-like effects of nicotinic acetylcholine receptor antagonists, but not agonists, in the mouse forced swim and mouse tail suspension tests

Author

Andreasen T., Jesper, Olsen, G M, Wiborg, O, Redrobe, J P, Andreasen T., Jesper, Olsen, G M, Wiborg, O, and Redrobe, J P

Abstract

Current literature suggests involvement of nicotinic acetylcholine receptors (nAChRs) in major depression. However, it is controversial whether the antidepressant-like effect of nAChR modulation is induced by activation, desensitization or inhibition of central nAChRs. In addition, the specific nAChR subtype/s involved remains unknown. In this study, we systematically compared the effects of non-selective and selective nicotinic agonists and antagonists in two different tests for antidepressant effects in mice: the tail suspension test and the forced swim test. Compounds: nicotine, RJR-2403 (alpha4beta2-selective agonist), PNU-282987 (alpha7-selective agonist), mecamylamine (non-selective antagonist), dihydro-beta-erythroidine (DHbetaE; alpha4beta2-selective antagonist), methyllycaconitine (MLA; alpha7-selective antagonist) and hexamethonium (non-brain-penetrant non-selective antagonist). All compounds were tested in a locomotor activity paradigm to rule out non-specific stimulant effects. The data show that blockade of nAChRs with mecamylamine, or selective antagonism of alpha4beta2 or alpha7 nAChRs with DHbetaE or MLA, respectively, has antidepressant-like effects. These effects were not confounded by motor stimulation. Hexamethonium did not show antidepressant-like activity, supporting the involvement of central nAChRs. At the dose levels tested, none of the nAChR agonists displayed antidepressant-like profiles. In conclusion, antagonism of central alpha4beta2 and/or alpha7 nAChRs induced antidepressant-like effects in mice. A strategy involving antagonism of central nAChRs could potentially lead to the development of novel antidepressant therapeutics.

Published
2009

34. Poster session 2

Author

Perez-Pomares, J. M., primary, Ruiz-Villalba, A., additional, Ziogas, A., additional, Segovia, J. C., additional, Ehrbar, M., additional, Munoz-Chapuli, R., additional, De La Rosa, A., additional, Dominguez, J. N., additional, Hove-Madsen, L., additional, Sankova, B., additional, Sedmera, D., additional, Franco, D., additional, Aranega Jimenez, A., additional, Babaeva, G., additional, Chizh, N., additional, Galchenko, S., additional, Sandomirsky, B., additional, Schwarzl, M., additional, Seiler, S., additional, Steendijk, P., additional, Huber, S., additional, Maechler, H., additional, Truschnig-Wilders, M., additional, Pieske, B., additional, Post, H., additional, Simrick, S., additional, Kreutzer, R., additional, Rao, C., additional, Terracciano, C. M., additional, Kirchhof, P., additional, Fabritz, L., additional, Brand, T., additional, Theveniau-Ruissy, M., additional, Parisot, P., additional, Francou, A., additional, Saint-Michel, E., additional, Mesbah, K., additional, Kelly, R. G., additional, Wu, H.-T., additional, Sie, S.-S., additional, Chen, C.-Y., additional, Kuan, T.-C., additional, Lin, C. S., additional, Ismailoglu, Z., additional, Guven, M., additional, Yakici, A., additional, Ata, Y., additional, Ozcan, S., additional, Yildirim, E., additional, Ongen, Z., additional, Miroshnikova, V., additional, Demina, E., additional, Rodygina, T., additional, Kurjanov, P., additional, Denisenko, A., additional, Schwarzman, A., additional, Rubanenko, A., additional, Shchukin, Y., additional, Germanov, A., additional, Goldbergova, M., additional, Parenica, J., additional, Lipkova, J., additional, Pavek, N., additional, Kala, P., additional, Poloczek, M., additional, Vasku, A., additional, Parenicova, I., additional, Spinar, J., additional, Gambacciani, C., additional, Chiavacci, E., additional, Evangelista, M., additional, Vesentini, N., additional, Kusmic, C., additional, Pitto, L., additional, Chernova, A., additional, Nikulina, S. U. Y., additional, Arvanitis, D. A., additional, Mourouzis, I., additional, Pantos, C., additional, Kranias, E. G., additional, Cokkinos, D. V., additional, Sanoudou, D., additional, Vladimirskaya, T. E., additional, Shved, I. A., additional, Kryvorot, S. G., additional, Schirmer, I. M., additional, Appukuttan, A., additional, Pott, L., additional, Jaquet, K., additional, Ladilov, Y., additional, Archer, C. R., additional, Bootman, M. D., additional, Roderick, H. L., additional, Fusco, A., additional, Sorriento, D., additional, Santulli, G., additional, Trimarco, B., additional, Iaccarino, G., additional, Hagenmueller, M., additional, Riffel, J., additional, Bernhold, E., additional, Katus, H. A., additional, Hardt, S. E., additional, Maqsood, A., additional, Zi, M., additional, Prehar, S., additional, Neyses, L., additional, Ray, S., additional, Oceandy, D., additional, Khatami, N., additional, Wadowski, P., additional, Wagh, V., additional, Hescheler, J., additional, Sachinidis, A., additional, Mohl, W., additional, Chaudhry, B., additional, Burns, D., additional, Henderson, D. J., additional, Bax, N. A. M., additional, Van Marion, M. H., additional, Shah, B., additional, Goumans, M. J., additional, Bouten, C. V. C., additional, Van Der Schaft, D. W. J., additional, Van Oorschot, A. A. M., additional, Maas, S., additional, Braun, J., additional, Van Tuyn, J., additional, De Vries, A. A. F., additional, Gittenberger-De Groot, A. C., additional, Bageghni, S., additional, Drinkhill, M. J., additional, Batten, T. F. C., additional, Ainscough, J. F. X., additional, Onate, B., additional, Vilahur, G., additional, Ferrer-Lorente, R., additional, Ybarra, J., additional, Diez-Caballero, A., additional, Ballesta-Lopez, C., additional, Moscatiello, F., additional, Herrero, J., additional, Badimon, L., additional, Martin-Rendon, E., additional, Clifford, D. M., additional, Fisher, S. A., additional, Brusnkill, S. J., additional, Doree, C., additional, Mathur, A., additional, Clarke, M., additional, Watt, S. M., additional, Hernandez-Vera, R., additional, Kavanagh, D., additional, Yemm, A. I., additional, Frampton, J., additional, Kalia, N., additional, Terajima, Y., additional, Shimizu, T., additional, Tsuruyama, S., additional, Ishii, H., additional, Sekine, H., additional, Hagiwara, N., additional, Okano, T., additional, Vrijsen, K. R., additional, Chamuleau, S. A. J., additional, Sluijter, J. P. G., additional, Doevendans, P. F. M., additional, Madonna, R., additional, Delli Pizzi, S., additional, Di Donato, L., additional, Mariotti, A., additional, Di Carlo, L., additional, D'ugo, E., additional, Teberino, M. A., additional, Merla, A., additional, T, A., additional, De Caterina, R., additional, Kolker, L., additional, Ali, N. N., additional, Maclellan, K., additional, Moore, M., additional, Wheeler, J., additional, Harding, S. E., additional, Fleck, R. A., additional, Rowlinson, J. M., additional, Kraenkel, N., additional, Ascione, R., additional, Madeddu, P., additional, O'sullivan, J. F., additional, Leblond, A. L., additional, Kelly, G., additional, Kumar, A. H. S., additional, Metharom, P., additional, Buneker, C. K., additional, Alizadeh-Vikali, N., additional, Hynes, B. G., additional, O'connor, R., additional, Caplice, N. M., additional, Noseda, M., additional, De Smith, A. J., additional, Leja, T., additional, Rao, P. H., additional, Al-Beidh, F., additional, Abreu Pavia, M. S., additional, Blakemore, A. I., additional, Schneider, M. D., additional, Stathopoulou, K., additional, Cuello, F., additional, Ehler, E., additional, Haworth, R. S., additional, Avkiran, M., additional, Morawietz, H., additional, Eickholt, C., additional, Langbein, H., additional, Brux, M., additional, Goettsch, C., additional, Goettsch, W., additional, Arsov, A., additional, Brunssen, C., additional, Mazilu, L., additional, Parepa, I. R., additional, Suceveanu, A. I., additional, Suceveanu, A. P., additional, De Man, F. S., additional, Guignabert, C., additional, Tu, L., additional, Handoko, M. L., additional, Schalij, I., additional, Fadel, E., additional, Postmus, P. E., additional, Vonk-Noordegraaf, A., additional, Humbert, M., additional, Eddahibi, S., additional, Del Giudice, C., additional, Anastasio, A., additional, Fazal, L., additional, Azibani, F., additional, Bihry, N., additional, Merval, R., additional, Polidano, E., additional, Samuel, J.-L., additional, Delcayre, C., additional, Zhang, Y., additional, Mi, Y. M., additional, Ren, L. L., additional, Cheng, Y. P., additional, Guo, R., additional, Liu, Y., additional, Jiang, Y. N., additional, Kokkinos, A. D., additional, Tretjakovs, P., additional, Jurka, A., additional, Bormane, I., additional, Mikelsone, I., additional, Reihmane, D., additional, Elksne, K., additional, Krievina, G., additional, Verbovenko, J., additional, Bahs, G., additional, Lopez-Andres, N., additional, Rousseau, A., additional, Calvier, L., additional, Akhtar, R., additional, Labat, C., additional, Cruickshank, K., additional, Diez, J., additional, Zannad, F., additional, Lacolley, P., additional, Rossignol, P., additional, Hamesch, K., additional, Subramanian, P., additional, Li, X., additional, Thiemann, A., additional, Heyll, K., additional, Dembowsky, K., additional, Chevalier, E., additional, Weber, C., additional, Schober, A., additional, Yang, L., additional, Kim, G., additional, Gardner, B., additional, Earley, J., additional, Hofmann-Bowman, M., additional, Cheng, C.-F., additional, Lian, W.-S., additional, Lin, H., additional, Jinjolia, N. J., additional, Abuladze, G. A., additional, Tvalchrelidze, S. H. T., additional, Khamnagadaev, I., additional, Shkolnikova, M., additional, Kokov, L., additional, Miklashevich, I., additional, Drozdov, I., additional, Ilyich, I., additional, Bingen, B. O., additional, Askar, S. F. A., additional, Ypey, D. L., additional, Van Der Laarse, A., additional, Schalij, M. J., additional, Pijnappels, D. A., additional, Roney, C. H., additional, Ng, F. S., additional, Chowdhury, R. A., additional, Chang, E. T. Y., additional, Patel, P. M., additional, Lyon, A. R., additional, Siggers, J. H., additional, Peters, N. S., additional, Obergrussberger, A., additional, Stoelzle, S., additional, Bruggemann, A., additional, Haarmann, C., additional, George, M., additional, Fertig, N., additional, Moreira, D., additional, Souza, A., additional, Valente, P., additional, Kornej, J., additional, Reihardt, C., additional, Kosiuk, J., additional, Arya, A., additional, Hindricks, G., additional, Adams, V., additional, Husser, D., additional, Bollmann, A., additional, Camelliti, P., additional, Dudhia, J., additional, Dias, P., additional, Cartledge, J., additional, Connolly, D. J., additional, Nobles, M., additional, Sebastian, S., additional, Tinker, A., additional, Opel, A., additional, Daimi, H., additional, Haj Khelil, A., additional, Be Chibani, J., additional, Barana, A., additional, Amoros, I., additional, Gonzalez De La Fuente, M., additional, Caballero, R., additional, Aranega, A., additional, Kelly, A., additional, Bernus, O., additional, Kemi, O. J., additional, Myles, R. C., additional, Ghouri, I. A., additional, Burton, F. L., additional, Smith, G. L., additional, Del Lungo, M., additional, Sartiani, L., additional, Spinelli, V., additional, Baruscotti, M., additional, Difrancesco, D., additional, Mugelli, A., additional, Cerbai, E., additional, Thomas, A. M., additional, Aziz, Q., additional, Khambra, T., additional, Addlestone, J. M. A., additional, Cartwright, E. J., additional, Wilkinson, R., additional, Song, W., additional, Marston, S., additional, Jacquet, A., additional, Mougenot, N. M., additional, Lipskaia, A. J., additional, Paalberends, E. R., additional, Stam, K., additional, Van Dijk, S. J., additional, Van Slegtenhorst, M., additional, Dos Remedios, C., additional, Ten Cate, F. J., additional, Michels, M., additional, Niessen, H. W. M., additional, Stienen, G. J. M., additional, Van Der Velden, J., additional, Read, M. I., additional, Andreianova, A. A., additional, Harrison, J. C., additional, Goulton, C. S., additional, Kerr, D. S., additional, Sammut, I. A., additional, Wallner, M., additional, Von Lewinski, D., additional, Kindsvater, D., additional, Saes, M., additional, Morano, I., additional, Muegge, A., additional, Buyandelger, B., additional, Kostin, S., additional, Gunkel, S., additional, Vouffo, J., additional, Ng, K., additional, Chen, J., additional, Eilers, M., additional, Isaacson, R., additional, Milting, H., additional, Knoell, R., additional, Cattin, M.-E., additional, Crocini, C., additional, Schlossarek, S., additional, Maron, S., additional, Hansen, A., additional, Eschenhagen, T., additional, Carrier, L., additional, Bonne, G., additional, Coppini, R., additional, Ferrantini, C., additional, Olivotto, I., additional, Belardinelli, L., additional, Poggesi, C., additional, Leung, M. C., additional, Messer, A. E., additional, Copeland, O., additional, Marston, S. B., additional, Mills, A. M., additional, Collins, T., additional, O'gara, P., additional, Thum, T., additional, Regalla, K., additional, Macleod, K. T., additional, Prodromakis, T., additional, Chaudhry, U., additional, Darzi, A., additional, Yacoub, M. H., additional, Athanasiou, T., additional, Bogdanova, A., additional, Makhro, A., additional, Hoydal, M., additional, Stolen, T. O., additional, Johnssen, A. B., additional, Alves, M., additional, Catalucci, D., additional, Condorelli, G., additional, Koch, L. G., additional, Britton, S. L., additional, Wisloff, U., additional, Bito, V., additional, Claus, P., additional, Vermeulen, K., additional, Huysmans, C., additional, Ventura-Clapier, R., additional, Sipido, K. R., additional, Seliuk, M. N., additional, Burlaka, A. P., additional, Sidorik, E. P., additional, Khaitovych, N. V., additional, Kozachok, M. M., additional, Potaskalova, V. S., additional, Driesen, R. B., additional, Galan, D. T., additional, De Paulis, D., additional, Arnoux, T., additional, Schaller, S., additional, Pruss, R. M., additional, Poitz, D. M., additional, Augstein, A., additional, Braun-Dullaeus, R. C., additional, Schmeisser, A., additional, Strasser, R. H., additional, Micova, P., additional, Balkova, P., additional, Hlavackova, M., additional, Zurmanova, J., additional, Kasparova, D., additional, Kolar, F., additional, Neckar, J., additional, Novak, F., additional, Novakova, O., additional, Pollard, S., additional, Babba, M., additional, Hussain, A., additional, James, R., additional, Maddock, H., additional, Alshehri, A. S., additional, Baxter, G. F., additional, Dietel, B., additional, Altendorf, R., additional, Daniel, W. G., additional, Kollmar, R., additional, Garlichs, C. D., additional, Sirohi, R., additional, Roberts, N., additional, Lawrence, D., additional, Sheikh, A., additional, Kolvekar, S., additional, Yap, J., additional, Arend, M., additional, Walkinshaw, G., additional, Hausenloy, D. J., additional, Yellon, D. M., additional, Posa, A., additional, Szabo, R., additional, Szalai, Z., additional, Szablics, P., additional, Berko, M. A., additional, Orban, K., additional, Murlasits, Z. S., additional, Balogh, L., additional, Varga, C., additional, Ku, H. C., additional, Su, M. J., additional, Chreih, R.-M., additional, Ginghina, C., additional, Deleanu, D., additional, Ferreira, A. L. B. J., additional, Belal, A., additional, Ali, M. A., additional, Fan, X., additional, Holt, A., additional, Campbell, R., additional, Schulz, R., additional, Bonanad, C., additional, Bodi, V., additional, Sanchis, J., additional, Morales, J. M., additional, Marrachelli, V., additional, Nunez, J., additional, Forteza, M. J., additional, Chaustre, F., additional, Gomez, C., additional, Chorro, F. J., additional, Csont, T., additional, Fekete, V., additional, Murlasits, Z., additional, Aypar, E., additional, Bencsik, P., additional, Sarkozy, M., additional, Varga, Z. V., additional, Ferdinandy, P., additional, Duerr, G. D., additional, Zoerlein, M., additional, Dewald, D., additional, Mesenholl, B., additional, Schneider, P., additional, Ghanem, A., additional, Rittling, S., additional, Welz, A., additional, Dewald, O., additional, Becker, E., additional, Peigney, C., additional, Bouleti, C., additional, Galaup, A., additional, Monnot, C., additional, Ghaleh, B., additional, Germain, S., additional, Timmermans, A., additional, Ginion, A., additional, De Meester, C., additional, Sakamoto, K., additional, Vanoverschelde, J.-L., additional, Horman, S., additional, Beauloye, C., additional, Bertrand, L., additional, Maroz-Vadalazhskaya, N., additional, Drozd, E., additional, Kukharenko, L., additional, Russkich, I., additional, Krachak, D., additional, Seljun, Y., additional, Ostrovski, Y., additional, Martin, A.-C., additional, Le Bonniec, B., additional, Lecompte, T., additional, Dizier, B., additional, Emmerich, J., additional, Fischer, A.-M., additional, Samama, C.-M., additional, Godier, A., additional, Mogensen, S., additional, Furchtbauer, E. M., additional, Aalkjaer, C., additional, Choong, W. L., additional, Jovanovic, A., additional, Khan, F., additional, Daniel, J. M., additional, Dutzmann, J. M., additional, Widmer-Teske, R., additional, Guenduez, D., additional, Sedding, D., additional, Castro, M. M., additional, Cena, J. J. C., additional, Cho, W. J. C., additional, Goobie, G. G., additional, Walsh, M. P. W., additional, Schulz, R. S., additional, Dutzmann, J., additional, Preissner, K. T., additional, Sones, W., additional, Kotlikoff, M., additional, Serizawa, K., additional, Yogo, K., additional, Aizawa, K., additional, Hirata, M., additional, Tashiro, Y., additional, Ishizuka, N., additional, Varela, A., additional, Katsiboulas, M., additional, Tousoulis, D., additional, Papaioannou, T. G., additional, Vaina, S., additional, Davos, C. H., additional, Piperi, C., additional, Stefanadis, C., additional, Basdra, E. K., additional, Papavassiliou, A. G., additional, Hermenegildo, C., additional, Lazaro-Franco, M., additional, Sobrino, A., additional, Bueno-Beti, C., additional, Martinez-Gil, N., additional, Walther, T., additional, Peiro, C., additional, Sanchez-Ferrer, C. F., additional, Novella, S., additional, Ciccarelli, M., additional, Franco, A., additional, Dorn, G. W., additional, Cseplo, P., additional, Torok, O., additional, Springo, Z. S., additional, Vamos, Z., additional, Kosa, D., additional, Hamar, J., additional, Koller, A., additional, Bubb, K. J., additional, Ahluwalia, A., additional, Stepien, E. L., additional, Gruca, A., additional, Grzybowska, J., additional, Goralska, J., additional, Dembinska-Kiec, A., additional, Stolinski, J., additional, Partyka, L., additional, Zhang, H., additional, Sweeney, D., additional, Thomas, G. N., additional, Fish, P. V., additional, Taggart, D. P., additional, Cioffi, S., additional, Bilio, M., additional, Martucciello, S., additional, Illingworth, E., additional, Caporali, A., additional, Shantikumar, S., additional, Marchetti, M., additional, Martelli, F., additional, Emanueli, C., additional, Meloni, M., additional, Al Haj Zen, A., additional, Sala-Newby, G., additional, Del Turco, S., additional, Saponaro, C., additional, Dario, B., additional, Sartini, S., additional, Menciassi, A., additional, Dario, P., additional, La Motta, C., additional, Basta, G., additional, Santiemma, V., additional, Bertone, C., additional, Rossi, F., additional, Michelon, E., additional, Bianco, M. J., additional, Castelli, A., additional, Shin, D. I., additional, Seung, K. B., additional, Seo, S. M., additional, Park, H. J., additional, Kim, P. J., additional, Baek, S. H., additional, Choi, Y. S., additional, Her, S. H., additional, Kim, D. B., additional, Lee, J. M., additional, Park, C. S., additional, Rocchiccioli, S., additional, Cecchettini, A., additional, Pelosi, G., additional, Citti, L., additional, Parodi, O., additional, Trivella, M. G., additional, Michel-Monigadon, D., additional, Burger, F., additional, Dunoyer-Geindre, S., additional, Pelli, G., additional, Cravatt, B., additional, Steffens, S., additional, Didangelos, A., additional, Mayr, U., additional, Yin, X., additional, Stegemann, C., additional, Shalhoub, J., additional, Davies, A. H., additional, Monaco, C., additional, Mayr, M., additional, Lypovetska, S., additional, Grytsenko, S., additional, Njerve, I. U., additional, Pettersen, A. A., additional, Opstad, T. B., additional, Bratseth, V., additional, Arnesen, H., additional, Seljeflot, I., additional, Dumitriu, I. E., additional, Baruah, P., additional, Antunes, R. F., additional, Kaski, J. C., additional, Trapero, I., additional, Benet, I., additional, Alguero, C., additional, Chaustre, F. J., additional, Mangold, A., additional, Puthenkalam, S., additional, Distelmaier, K., additional, Adlbrecht, C., additional, Lang, I. M., additional, Koizumi, T., additional, Inoue, I., additional, Komiyama, N., additional, Nishimura, S., additional, Korneeva, O. N., additional, Drapkina, O. M., additional, Fornai, L., additional, Angelini, A., additional, Kiss, A., additional, Giskes, F., additional, Eijkel, G., additional, Fedrigo, M., additional, Valente, M. L., additional, Thiene, G., additional, Heeren, R. M. A., additional, Padro, T., additional, Casani, L., additional, Suades, R., additional, Bertoni, B., additional, Carminati, R., additional, Carlini, V., additional, Pettinari, L., additional, Martinelli, C., additional, Gagliano, N., additional, Noppe, G., additional, Buchlin, P., additional, Marquet, N., additional, Baeyens, N., additional, Morel, N., additional, Baysa, A., additional, Sagave, J., additional, Dahl, C. P., additional, Gullestad, L., additional, Carpi, A., additional, Di Lisa, F., additional, Giorgio, M., additional, Vaage, J., additional, Valen, G., additional, Vafiadaki, E., additional, Papalouka, V., additional, Terzis, G., additional, Spengos, K., additional, Manta, P., additional, Gales, C., additional, Genet, G., additional, Dague, E., additional, Cazorla, O., additional, Payre, B., additional, Mias, C., additional, Ouille, A., additional, Lacampagne, A., additional, Pathak, A., additional, Senard, J. 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Published
2012
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36. Mutation of the conserved Gly83 and Gly94 in Escherichia coli elongation factor Tu. Indication of structural pivots

Author

Kjaersgård, I. V., Charlotte Knudsen, and Wiborg, O.

Subjects
Structure-Activity Relationship, Base Sequence, GTP Phosphohydrolase-Linked Elongation Factors, Protein Biosynthesis, Molecular Sequence Data, Mutation, Guanosine Triphosphate, Peptide Elongation Factor Tu, Guanosine Diphosphate
Abstract

Elongation factor Tu from Escherichia coli cycles between an active conformation where GTP is bound, and an inactive conformation where GDP is bound. Between the two conformations, elongation factor Tu undergoes major structural changes. The aim of this work has been to reveal the role of two very well conserved glycine residues, Gly83 and Gly94, in the switch mechanism. Gly83 has been mutated alone or in combination with Gly94, both glycine residues being mutated to alanine. Enzymic characterisation of the two mutants have shown that they have an altered nucleotide affinity, a decrease in aminoacyl-tRNA affinity, an increase in intrinsic GTP hydrolysis, different behaviours in effector stimulation of the intrinsic GTPase activity, and that they are completely unable to sustain poly(Phe) synthesis in an in-vitro poly(U)-directed system. Our results indicates that particularly Gly83 is an important pivot point in elongation factor-Tu. Udgivelsesdato: 1995-Feb-15

Published
1995

39. Towards an understanding of structure-function relationships of elongation factor Tu

Author

Wiborg, O., Andersen, C., Charlotte Knudsen, Kristensen, T. J., and Clark, Brian F. C.

Subjects
Models, Molecular, Structure-Activity Relationship, Protein Conformation, Escherichia coli, Mutagenesis, Site-Directed, Point Mutation, Amino Acids, Peptide Elongation Factor Tu, Protein Structure, Secondary
Abstract

In light of the recently determined structure of elongation factor Tu, and taking into account chemical studies mapping functional sites, a number of residues have been selected for site-directed mutagenesis studies. Gly94, Gly126, His66, His118, Lys89 and Asp90 have each been point-mutated. Preliminary in vitro characterization data are presented. Udgivelsesdato: 1994-Feb

Published
1994

43. Species-scanning mutagenesis of the serotonin transporter reveals residues essential in selective, high-affinity recognition of antidepressants

Author

Mortensen, O V, Kristensen, A S, Wiborg, O, Mortensen, O V, Kristensen, A S, and Wiborg, O

Abstract

The serotonin transporter (SERT) is a high-affinity sodium/chloride-dependent neurotransmitter transporter responsible for reuptake of serotonin from the extracellular space. SERT is a selective target of several clinically important antidepressants. In a cross-species analysis comparing human and bovine SERTs, the kinetic parameters for serotonin uptake were found to be similar, however, the pharmacological profiles of the two transporters differ. Following transient expression in COS-1 cells, IC(50) values were determined for several antidepressants and psychostimulants. The potencies of the antidepressants citalopram, fluoxetine, paroxetine and imipramine were several-fold higher at hSERT compared with bSERT. No species selectivity was observed for the antidepressants fluvoxamine, and sertraline or for the psychostimulants cocaine, the cocaine analogue beta-carbomethoxy-3beta-(4-iodophenyl)tropane, or for 3,4-methylenedioxymethamphetamine (MDMA). Analysis of six hSERT/bSERT chimeras and subsequent species-scanning mutagenesis of each isoform revealed methionine-180, tyrosine-495, and phenylalanine-513 to be responsible for the increase in citalopram and paroxetine potencies at hSERT and methionine-180 and phenylalanine-513 to confer species selectivity at hSERT for fluoxetine and imipramine. Results were obtained by doing the forward, bovine to human, mutations and confirmed by doing the reverse mutations. Citalopram analogues were used to define the roles of methionine-180, tyrosine-495, and phenylalanine-513 and to reveal molecular interactions with individual functional groups of citalopram. We suggest that methionine-180 interacts with the heterocyclic nucleus of citalopram or stabilizes the binding pocket and phenylalanine-513 to be a steric blocker of antidepressant recognition.

Published
2001

48. Molecular cloning, expression and characterization of a bovine serotonin transporter

Author

Mortensen, O V, Kristensen, A S, Rudnick, G, Wiborg, O, Mortensen, O V, Kristensen, A S, Rudnick, G, and Wiborg, O

Abstract

The serotonin transporter (SERT) is a member of a highly homologous family of sodium/chloride dependent neurotransmitter transporters responsible for reuptake of biogenic amines from the extracellular fluid. SERT constitutes the pharmacological target of several clinically important antidepressants. Here we report the molecular cloning of SERT from the bovine species. Translation of the nucleotide sequence revealed 44 amino acid differences compared to human SERT. When transiently expressed in HeLa cells and compared with rat and human SERTs the K(m) value for uptake was increased 2-fold. V(max) and B(max) were both increased about 4-fold indicating the turnover number is conserved. The pharmacological profile revealed a decreased sensitivity towards imipramine, desipramine, citalopram, fluoxetine and paroxetine compared with human SERT, while the sensitivity towards 3, 4-methylenedioxymethamphetamine (MDMA) was mainly unchanged. RT-PCR amplification of RNA from different tissues demonstrated expression of SERT in placenta, brain stem, bone marrow, kidney, lung, heart, adrenal gland, liver, parathyroid gland, thyroid gland, small intestine and pancreas.

Published
1999

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