In vivo importance of homologous recombination DNA repair for mouse neural stem and progenitor cells

We characterized the in vivo importance of the homologous recombination factor RAD54 for the developing mouse brain cortex in normal conditions or after ionizing radiation exposure. Contrary to numerous homologous recombination genes, Rad54 disruption did not impact the cortical development without exogenous stress, but it dramatically

Cellular and Behavioral Effects of Cranial Irradiation of the Subventricular Zone in Adult Mice

Background: In mammals, new neurons are added to the olfactory bulb (OB) throughout life. Most of these new neurons, granule and periglomerular cells originate from the subventricular zone (SVZ) lining the lateral ventricles and migrate via the rostral migratory stream toward the OB. Thousands of new neurons appear each day, but the function of this ongoing neurogenesis remains unclear. Methodology/Principal Findings: In this study, we irradiated adult mice to impair constitutive OB neurogenesis, and explored the functional impacts of this irradiation on the sense of smell. We found that focal irradiation of the SVZ greatly decreased the rate of production of new OB neurons, leaving other brain areas intact. This effect persisted for up to seven months after exposure to 15 Gray. Despite this robust impairment, the thresholds for detecting pure odorant molecules and short-term olfactory memory were not affected by irradiation. Similarly, the ability to distinguish between odorant molecules and the odorant-guided social behavior of irradiated mice were not affected by the decrease in the number of new neurons. Only long-term olfactory memory was found to be sensitive to SVZ irradiation. Conclusion/Significance: These findings suggest that the continuous production of adult-generated neurons is involved i

Fanconi DNA repair pathway is required for survival and long-term maintenance of neural progenitors

Although brain development abnormalities and brain cancer predisposition have been reported in some Fanconi patients, the possible role of Fanconi DNA repair pathway during neurogenesis is unclear. We thus addressed the role of fanca and fancg, which are involved in the activation of Fanconi pathway, in neural stem and progenitor cells during brain development and adult neurogenesis. Fanca−/− and fancg−/− mice presented with microcephalies and a decreased neuronal production in developing cortex and adult brain. Apoptosis of embryonic neural progenitors, but not that of postmitotic neurons, was increased in the neocortex of fanca−/− and fancg−/− mice and was correlated with chromosomal instability. In adult Fanconi mice, we showed a reduced proliferation of neural progenitor cells related to apoptosis and accentuated neural stem cells exhaustion with ageing. In addition, embryonic and adult Fanconi neural stem cells showed a reduced capacity to self-renew in vitro. Our study demonstrates a critical role for Fanconi pathway in neural stem and progenitor cells during developmental and adult neurogenesis

Prediction of improvement in skin fibrosis in diffuse cutaneous systemic sclerosis: A EUSTAR analysis

none194Dobrota, Rucsandra; Maurer, Britta; Graf, Nicole; Jordan, Suzana; Mihai, Carina; Kowal-Bielecka, Otylia; Allanore, Yannick; Distler, Oliver; Cerinic, Marco Matucci; Guiducci, Serena; Walker, Ulrich; Lapadula, Giovanni; Iannone, Florenzo; Becvar, Radim; Sierakowsky, Stanislaw; Cutolo, Maurizio; Sulli, Alberto; Valentini, Gabriele; Cuomo, Giovanna; Vettori, Serena; Riemekasten, Gabriela; Siegert, Elise; Rednic, Simona; Nicoara, Ileana; Kahan, André; Vlachoyiannopoulos, P.; Montecucco, C.; Caporali, Roberto; Carreira, Patricia E.; Novak, Srdan; Czirják, László; Varju, Cecilia; Chizzolini, Carlo; Kucharz, Eugene J.; Kotulska, Anna; Kopec-Medrek, Magdalena; Widuchowska, Malgorzata; Cozzi, Franco; Rozman, Blaz; Mallia, Carmel; Coleiro, Bernard; Gabrielli, Armando; Farge, Dominique; Wu, Chen; Marjanovic, Zora; Faivre, Helene; Hij, Darin; Dhamadi, Roza; Airò, Paolo; Hesselstrand, Roger; Wollheim, Frank; Wuttge, Dirk M.; Andréasson, Kristofer; Martinovic, Duska; Balbir-Gurman, Alexandra; Braun-Moscovici, Yolanda; Trotta, F.; Monaco, Andrea Lo; Hunzelmann, Nicolas; Pellerito, Raffaele; Mauriziano, Ospedale; Bambara, Lisa Maria; Caramaschi, Paola; Black, Carol; Denton, Christopher; Damjanov, Nemanja; Henes, Jörg; Santamaria, Vera Ortiz; Heitmann, Stefan; Krasowska, Dorota; Seidel, Matthias; Burkhardt, Harald; Himsel, Andrea; Salvador, Maria J.; Da Silva, José Antonio Pereira; Stamenkovic, Bojana; Stankovic, Aleksandra; Tikly, Mohammed; Ananieva, Lidia P.; Denisov, Lev N.; Müller-Ladner, Ulf; Frerix, Marc; Tarner, Ingo; Scorza, Raffaella; Engelhart, Merete; Strauss, Gitte; Nielsen, Henrik; Damgaard, Kirsten; Mendoza, Antonio Zea; de la Puente, Carlos; Giraldo, Walter A. Sifuentes; Midtvedt, Øyvind; Reiseter, Silje; Hachulla, Eric; Launay, David; Valesini, Guido; Riccieri, Valeria; Ionescu, Ruxandra Maria; Opris, Daniela; Groseanu, Laura; Cornateanu, Roxana Sfrent; Ionitescu, Razvan; Gherghe, Ana Maria; Soare, Alina; Gorga, Marilena; Bojinca, Mihai; Schett, Georg; Distler, Jörg H.W.; Beyer, Christian; Meroni, Pierluigi; Ingegnoli, Francesca; Mouthon, Luc; Keyser, Filip De; Smith, Vanessa; Cantatore, Francesco P.; Corrado, Ada; Pozzi, Maria R.; Eyerich, Kilian; Hein, Rüdiger; Knott, Elisabeth; Wiland, Piotr; Szmyrka-Kaczmarek, Magdalena; Sokolik, Renata; Morgiel, Ewa; Madej, Marta; Krummel-Lorenz, Brigitte; Saar, Petra; Aringer, Martin; Günther, Claudia; Westhovens, Rene; de Langhe, Ellen; Lenaerts, Jan; Anic, Branimir; Baresic, Marko; Mayer, Miroslav; Radominski, Sebastião C.; de Souza Müller, Carolina; Azevedo, Valderílio F.; Agachi, Svetlana; Groppa, Liliana; Chiaburu, Lealea; Russu, Eugen; Popa, Sergei; Zenone, Thierry; Stebbings, Simon; Highton, John; Stamp, Lisa; Chapman, Peter; O'Donnell, John; Solanki, Kamal; Doube, Alan; Veale, Douglas; O'Rourke, Marie; Loyo, Esthela; Li, Mengtao; Rosato, Edoardo; Amoroso, Antonio; Gigante, Antonietta; Tanaseanu, Cristina-Mihaela; Popescu, Monica; Dumitrascu, Alina; Tiglea, Isabela; Foti, Rosario; Chirieac, Rodica; Ancuta, Codrina; Villiger, Peter; Adler, Sabine; de la Peña Lefebvre, Paloma García; Rubio, Silvia Rodriguez; Exposito, Marta Valero; Sibilia, Jean; Chatelus, Emmanuel; Gottenberg, Jacques Eric; Chifflot, Hélène; Litinsky, Ira; Venalis, Algirdas; Butrimiene, Irena; Venalis, Paulius; Rugiene, Rita; Karpec, Diana; Saketkoo, Lesley Ann; Lasky, Joseph A.; Kerzberg, Eduardo; Montoya, Fabiana; Cosentino, Vanesa; Limonta, Massimiliano; Brucato, Antonio Luca; Lupi, Elide; Spertini, François; Ribi, Camillo; Buss, Guillaume; Pasquali, Jean Louis; Martin, Thierry; Gorse, AudreyDobrota, Rucsandra; Maurer, Britta; Graf, Nicole; Jordan, Suzana; Mihai, Carina; Kowal Bielecka, Otylia; Allanore, Yannick; Distler, Oliver; Cerinic, Marco Matucci; Guiducci, Serena; Walker, Ulrich; Lapadula, Giovanni; Iannone, Florenzo; Becvar, Radim; Sierakowsky, Stanislaw; Cutolo, Maurizio; Sulli, Alberto; Valentini, Gabriele; Cuomo, Giovanna; Vettori, Serena; Riemekasten, Gabriela; Siegert, Elise; Rednic, Simona; Nicoara, Ileana; Kahan, André; Vlachoyiannopoulos, P.; Montecucco, Carlomaurizio; Caporali, Roberto; Carreira, Patricia E.; Novak, Srdan; Czirják, László; Varju, Cecilia; Chizzolini, Carlo; Kucharz, Eugene J.; Kotulska, Anna; Kopec Medrek, Magdalena; Widuchowska, Malgorzata; Cozzi, Franco; Rozman, Blaz; Mallia, Carmel; Coleiro, Bernard; Gabrielli, Armando; Farge, Dominique; Wu, Chen; Marjanovic, Zora; Faivre, Helene; Hij, Darin; Dhamadi, Roza; Airò, Paolo; Hesselstrand, Roger; Wollheim, Frank; Wuttge, Dirk M.; Andréasson, Kristofer; Martinovic, Duska; Balbir Gurman, Alexandra; Braun Moscovici, Yolanda; Trotta, F.; Monaco, Andrea Lo; Hunzelmann, Nicolas; Pellerito, Raffaele; Mauriziano, Ospedale; Bambara, Lisa Maria; Caramaschi, Paola; Black, Carol; Denton, Christopher; Damjanov, Nemanja; Henes, Jörg; Santamaria, Vera Ortiz; Heitmann, Stefan; Krasowska, Dorota; Seidel, Matthias; Burkhardt, Harald; Himsel, Andrea; Salvador, Maria J.; Da Silva, José Antonio Pereira; Stamenkovic, Bojana; Stankovic, Aleksandra; Tikly, Mohammed; Ananieva, Lidia P.; Denisov, Lev N.; Müller Ladner, Ulf; Frerix, Marc; Tarner, Ingo; Scorza, Raffaella; Engelhart, Merete; Strauss, Gitte; Nielsen, Henrik; Damgaard, Kirsten; Mendoza, Antonio Zea; de la Puente, Carlos; Giraldo, Walter A. Sifuentes; Midtvedt, Øyvind; Reiseter, Silje; Hachulla, Eric; Launay, David; Valesini, Guido; Riccieri, Valeria; Ionescu, Ruxandra Maria; Opris, Daniela; Groseanu, Laura; Cornateanu, Roxana Sfrent; Ionitescu, Razvan; Gherghe, Ana Maria; Soare, Alina; Gorga, Marilena; Bojinca, Mihai; Schett, Georg; Distler, Jörg H. W.; Beyer, Christian; Meroni, Pierluigi; Ingegnoli, Francesca; Mouthon, Luc; Keyser, Filip De; Smith, Vanessa; Cantatore, Francesco P.; Corrado, Ada; Pozzi, Maria R.; Eyerich, Kilian; Hein, Rüdiger; Knott, Elisabeth; Wiland, Piotr; Szmyrka Kaczmarek, Magdalena; Sokolik, Renata; Morgiel, Ewa; Madej, Marta; Krummel Lorenz, Brigitte; Saar, Petra; Aringer, Martin; Günther, Claudia; Westhovens, Rene; de Langhe, Ellen; Lenaerts, Jan; Anic, Branimir; Baresic, Marko; Mayer, Miroslav; Radominski, Sebastião C.; de Souza Müller, Carolina; Azevedo, Valderílio F.; Agachi, Svetlana; Groppa, Liliana; Chiaburu, Lealea; Russu, Eugen; Popa, Sergei; Zenone, Thierry; Stebbings, Simon; Highton, John; Stamp, Lisa; Chapman, Peter; O'Donnell, John; Solanki, Kamal; Doube, Alan; Veale, Douglas; O'Rourke, Marie; Loyo, Esthela; Li, Mengtao; Rosato, Edoardo; Amoroso, Antonio; Gigante, Antonietta; Tanaseanu, Cristina Mihaela; Popescu, Monica; Dumitrascu, Alina; Tiglea, Isabela; Foti, Rosario; Chirieac, Rodica; Ancuta, Codrina; Villiger, Peter; Adler, Sabine; de la Peña Lefebvre, Paloma García; Rubio, Silvia Rodriguez; Exposito, Marta Valero; Sibilia, Jean; Chatelus, Emmanuel; Gottenberg, Jacques Eric; Chifflot, Hélène; Litinsky, Ira; Venalis, Algirdas; Butrimiene, Irena; Venalis, Paulius; Rugiene, Rita; Karpec, Diana; Saketkoo, Lesley Ann; Lasky, Joseph A.; Kerzberg, Eduardo; Montoya, Fabiana; Cosentino, Vanesa; Limonta, Massimiliano; Brucato, Antonio Luca; Lupi, Elide; Spertini, François; Ribi, Camillo; Buss, Guillaume; Pasquali, Jean Louis; Martin, Thierry; Gorse, Audre