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Baglietto-Vargas D, Medeiros R, Martinez-Coria H, LaFerla FM, Green KN. Mifepristone alters amyloid precursor protein processing to preclude amyloid beta and also reduces tau pathology. Biol Psychiatry 2013; 74:357-66. [PMID: 23312564 PMCID: PMC3633722 DOI: 10.1016/j.biopsych.2012.12.003] [Citation(s) in RCA: 80] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2012] [Revised: 12/03/2012] [Accepted: 12/06/2012] [Indexed: 12/29/2022]
Abstract
BACKGROUND Increased circulating glucocorticoids are features of both aging and Alzheimer's disease (AD), and increased glucocorticoids accelerate the accumulation of AD pathologies. Here, we analyzed the effects of the glucocorticoid receptor antagonist mifepristone (RU486) in the 3xTg-AD mouse model at an age where hippocampal damage leads to high circulating corticosterone levels. METHODS The effects of mifepristone were investigated in 3xTg-AD mice using a combination of biochemical, histological, and behavior analyses. RESULTS Mifepristone treatment rescues the pathologically induced cognitive impairments and markedly reduces amyloid beta (Aβ)-load and levels, as well as tau pathologies. Analysis of amyloid precursor protein (APP) processing revealed concomitant decreases in both APP C-terminal fragments C99 and C83 and the appearance of a larger 17-kDa C-terminal fragment. Hence, mifepristone induces a novel C-terminal cleavage of APP that prevents it being cleaved by α- or β-secretase, thereby precluding Aβ generation in the central nervous system; this cleavage and the production of the 17-kDa APP fragment was generated by a calcium-dependent cysteine protease. In addition, mifepristone treatment also reduced the phosphorylation and accumulation of tau, concomitant with reductions in p25. Notably, deficits in cyclic-AMP response element-binding protein signaling were restored with the treatment. CONCLUSIONS These preclinical results point to a potential therapeutic role for mifepristone as an effective treatment for AD and further highlight the impact the glucocorticoid system has as a regulator of Aβ generation.
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Lima A, Bernardes M, Monteiro J, Azevedo R, Costa L, Ventura F, Seabra V, Medeiros R. THU0126 The Influence of Clinical and Genetic Variables on Methotrexate-Related Toxicity in Portuguese Rheumatoid Arthritis Patients. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Duro M, Sarmento-Castro R, Almeida C, Medeiros R, Rebelo I. Lipid profile changes by high activity anti-retroviral therapy. Clin Biochem 2013; 46:740-4. [DOI: 10.1016/j.clinbiochem.2012.12.017] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2012] [Revised: 11/13/2012] [Accepted: 12/21/2012] [Indexed: 10/27/2022]
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Medeiros R, Kitazawa M, Passos GF, Baglietto-Vargas D, Cheng D, Cribbs DH, LaFerla FM. Aspirin-triggered lipoxin A4 stimulates alternative activation of microglia and reduces Alzheimer disease-like pathology in mice. THE AMERICAN JOURNAL OF PATHOLOGY 2013; 182:1780-9. [PMID: 23506847 DOI: 10.1016/j.ajpath.2013.01.051] [Citation(s) in RCA: 125] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2012] [Revised: 01/15/2013] [Accepted: 01/17/2013] [Indexed: 12/29/2022]
Abstract
Microglia play an essential role in innate immunity, homeostasis, and neurotropic support in the central nervous system. In Alzheimer disease (AD), these cells may affect disease progression by modulating the buildup of β-amyloid (Aβ) or releasing proinflammatory cytokines and neurotoxic substances. Discovering agents capable of increasing Aβ uptake by phagocytic cells is of potential therapeutic interest for AD. Lipoxin A4 (LXA4) is an endogenous lipid mediator with potent anti-inflammatory properties directly involved in inflammatory resolution, an active process essential for appropriate host responses, tissue protection, and the return to homeostasis. Herein, we demonstrate that aspirin-triggered LXA4 (15 μg/kg) s.c., twice a day, reduced NF-κB activation and levels of proinflammatory cytokines and chemokines, as well as increased levels of anti-inflammatory IL-10 and transforming growth factor-β. Such changes in the cerebral milieu resulted in recruitment of microglia in an alternative phenotype, as characterized by the up-regulation of YM1 and arginase-1 and the down-regulation of inducible nitric oxide synthase expression. Microglia in an alternative phenotype-positive cells demonstrated improved phagocytic function, promoting clearance of Aβ deposits and ultimately leading to reduction in synaptotoxicity and improvement in cognition. Our data indicate that activating LXA4 signaling may represent a novel therapeutic approach for AD.
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Catarino R, Coelho A, Nogueira A, Araújo A, Gomes M, Lopes C, Medeiros R. Cyclin D1 polymorphism in non-small cell lung cancer in a Portuguese population. Cancer Biomark 2013; 12:65-72. [DOI: 10.3233/cbm-130294] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Bhalla V, Hogan C, Holsten A, Bolduc A, Medeiros R, NeSmith E, Looney S, O'Malley K, Hawkins M, Holsten S. “Identification and Referral of Patients at High Risk of Developing Post-Traumatic Stress Disorder (PTSD) at a Level 1 Trauma Center”. J Surg Res 2013. [DOI: 10.1016/j.jss.2012.10.860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Medeiros R, Chabrier MA, LaFerla FM. Elucidating the Triggers, Progression, and Effects of Alzheimer's Disease. ACTA ACUST UNITED AC 2012; 33 Suppl 1:S195-210. [DOI: 10.3233/jad-2012-129009] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Jovanovic I, Giga V, Tesic M, Paunovic I, Kostic J, Dobric M, Dikic M, Stepanovic J, Belesiln B, Djordjevic-Dikic A, Lindqvist P, Henein M, Soderberg S, Gonzalez M, Tossavainen E, Djordjevic-Dikic A, Tesic M, Stepanovic J, Giga V, Kostic J, Trifunovic D, Jovanovic I, Paunovic I, Stanic S, Beleslin B, Koutsogiannis N, Moulias A, Xanthopoulou I, Mavronasiou E, Kakkavas A, Davlouros P, Alexopoulos D, Barbier P, Cefalu' C, Gripari P, Pontone G, Andreini D, Pepi M, Duncan AM, Snow T, Barker S, Davies S, Di Mario C, Moat N, Serra W, Chetta A, Marangio E, Reverberi C, Cattabiani MA, Ardissino D, Sahlen A, Hakansson F, Shahgaldi K, Manouras A, Norman M, Winter R, Johnson J, Fawzi S, Rafla SM, El Atroush H, Farouk K, Wilson C, Hilde J, Skjoerten I, Melsom M, Humerfelt S, Hansteen V, Hisdal J, Steine K, Rees P, Hutchings S, Magnino C, Omede' P, Avenatti E, Chiarlo M, Presutti D, Bucca C, Moretti C, Gaita F, Veglio F, Milan A, Kostic J, Tesic M, Stepanovic J, Giga V, Paunovic I, Marinkovic A, Jovanovic I, Beleslin B, Ostojic M, Djordjevic Dikic A, Najjar E, Winter R, Gunyeli E, Shahgaldi K, Manouras A, Rodriguez Munoz DA, Moya Mur J, Baguda JDJ, Lazaro Rivera C, Navas Tejedor P, Jimenez Nacher J, Castillo Orive M, Fernandez-Golfin C, Zamorano Gomez J, Satendra M, Sargento L, Sousa C, Lousada N, Palma Reis R, Said K, Shehata A, Ashour Z, El-Tobgi S, Li Kam Wa M, Pabari P, Perry S, Kyriacou A, Manisty C, Francis D, Kusmierczyk-Droszcz B, Kowalik E, Niewiadomska J, Lech A, Hoffman P, Patrianakos A, Kalogerakis A, Zacharaki A, Nyktari E, Psathakis E, Parthenakis F, Vardas P, Stefani L, Milicia M, Bartolini A, Gori N, Tempesti G, Toncelli L, Vono M, Di Tante V, Pedri S, Galanti G, Zhong L, Huang F, Le T, Chen Q, Gao F, Tan R, Anwar A, Nosir Y, Alasnig M, Llemit M, Alhagoly A, Chamsi-Pasha H, Trifunovic D, Ostojic M, Stankovic S, Vujisic-Tesic B, Petrovic M, Nedeljkovic I, Beleslin B, Djordjevic-Dikic A, Banovic M, Tesic M, Orii M, Hirata K, Tanimoto T, Ishibashi K, Yamano T, Ino Y, Yamaguchi T, Kubo T, Imanishi T, Akasaka T, Giesecke A, Ripsweden J, Shahgaldi K, Guyeli E, Winter R, Hristova K, Vasilev D, Pavlov P, Katova T, Simova I, Kostova V, Wada T, Hirata KH, Kubo T, Shiono Y, Ishibashi K, Tanimoto T, Ino Y, Yamaguchi T, Imanishi TI, Akasaka T, Martirosyan M, Adamyan K, Chilingaryan A, Negrea S, Alexandrescu C, Civaia F, Bourlon F, Dreyfus G, Malev E, Kim G, Omelchenko M, Mitrofanova L, Zemtsovsky E, Santoro A, Costantino F, Dores E, Tarsia G, Di Natale M, Innelli P, Schiano Lomoriello V, De Stefano F, Galderisi M, Lee SP, Ahn H, Hwang H, Kim H, Kim Y, Kim K, Kim K, Sohn D, Ahn H, Calin A, Popescu B, Rosca M, Beladan C, Enache R, Gurzun M, Calinescu C, Calin C, Ginghina C, Rafla S, Hamdy S, Lotfi M, Elneklawy M, Mordi I, Spratt J, Sonecki P, Stanton T, Mcculloch A, Goodfield N, Tzemos N, Ghulam Ali S, Fusini L, Tamborini G, Celeste F, Gripari P, Muratori M, Maffessanti F, Mirea O, Alamanni F, Pepi M, Demirkan B, Guray Y, Guray U, Ege M, Kisacik H, Sasmaz H, Korkmaz S, Petrovic-Nagorni S, Zdravkovic-Ciric S, Nagorni A, Stanojevic D, Jankovic-Tomasevic R, Atanaskovic V, Mitic V, Szymanski C, Magne J, Rusinaru D, Fournier A, Mezghani S, Peltier M, Touati G, Tribouilloy C, Huttin O, Khachab H, Voilliot D, Schwartz J, Zinzius P, Lemoine S, Carillo S, Popovic B, Juilliere Y, Selton-Suty C, Kimura K, Takenaka K, Ebihara A, Uno K, Morita H, Nakajima T, Motoyoshi Y, Komori T, Yatomi Y, Nagai R, Mihaila S, Mincu R, Rimbas R, Badiu C, Vinereanu D, Igual Munoz B, Maceira Gonzalez A, Domingo Valero D, Estornell Erill J, Giner Blasco J, Arnau Vives M, Molina Aguilar P, Navarro Manchon J, Zorio Grima E, Miglioranza M, Sant'anna R, Rover M, Mantovani A, Lessa J, Haertel J, Salgado Filho P, Kalil R, Leiria T, Risum N, Sogaard P, Fritz Hansen T, Bruun N, Kisslo J, Velazquez E, Jons C, Olsen N, Azevedo O, Lourenco M, Machado I, Pereira V, Medeiros R, Pereira A, Quelhas I, Lourenco A, Rangel I, Goncalves A, Sousa C, Correia A, Pinho T, Madureira A, Martins E, Silva-Cardoso J, Macedo F, Maciel M, Kinova E, Zlatareva N, Goudev A, Rogge B, Cramariuc D, Lonnebakken M, Rieck A, Gohlke-Baerwolf C, Chambers J, Boman K, Gerdts E, Florescu M, Mihalcea D, Enescu O, Suran B, Mincu R, Patrascu N, Magda L, Cinteza M, Vinereanu D, Bruno R, Cogo A, Bartesaghi M, Thapa K, Duo E, Basnyat B, Ghiadoni L, Picano E, Sicari R, Pratali L, Jensen-Urstad K, Nordin A, Bjornadal L, Svenungsson E, King GJ, Murphy R, Almuntaser I, Mc Loughlin B, Livingston A, Nevin S, Clarke J, De Sousa CC, Rangel I, Martins E, Correia A, Nadais G, Silveira F, Silva Cardoso J, Goncalves A, Macedo F, Maciel M, Lindqvist P, Henein M, Hornsten R, Rasmunsson J, Hedstrom M, Alm C, Filali T, Jedaida B, Lahidheb D, Gommidh M, Mahfoudhi H, Hajlaoui N, Dahmani R, Fehri W, Haouala H, Shin SH, Woo S, Kim D, Park K, Kwan J, Brambila CA, Gabrielli L, Bijnens B, Marin J, Sitges I, Grazioli G, Pare C, Mont L, Brugada J, Sitges M, Pica S, Ghio S, Raineri C, Camporotondo R, Rordorf R, Previtali M, Landolina M, Valentini A, Turco A, Visconti L, Stuart B, Santos A, Cruz I, Caldeira D, Cotrim C, Fazendas P, Joao I, Almeida A, Pereira H, Goncalves A, Pinho T, Sousa C, Rangel I, Correia A, Madureira A, Macedo F, Zamorano JL, Maciel M, Driessen M, Kort E, Leiner T, Cramer M, Sieswerda G, Chamuleau S, Kim D, Choi Y, Park H, Kim H, Shin J, Song J, Kang D, Song J, Parisi V, Galasso G, Festa G, Piccolo R, Rengo G, De Rosa R, Pagano G, Iacotucci P, Leosco D, Piscione F, Bellsham-Revell H, Nedjati-Gilani S, Yao C, Pushparajah K, Penney G, Simpson J, Lopez Melgar B, Sanchez Sanchez V, Rodriguez Garcia J, Coma Samartin R, Martin Asenjo R, Fernandez Casares S, Lopez-Guarch CJ, Diaz Anton B, Mayordomo Gomez S, Lombera Romero F, Yamada S, Okada K, Iwano H, Nishino H, Nakabachi M, Yokoyama S, Kaga S, Mikami T, Tsutsui H, Stoebe S, Tarr A, Pfeiffer D, Hagendorff A, Klitsie L, Roest A, Kuipers I, Van Der Hulst A, Hazekamp M, Blom N, Ten Harkel A, Hagendorff A, Stoebe S, Tarr A, Gelbrich G, Loeffler M, Pfeiffer D, Badran H, Elnoamany M, Soltan G, Ezat M, Elsedi M, Abdelfatah R, Yacoub M, Kydd A, Khan F, Mccormick L, Gopalan D, Virdee M, Dutka D, Ruiz Ortiz M, Mesa D, Delgado M, Romo E, Morenate M, Baeza F, Castillo F, Lopez Granados A, Del Prado JA, De Lezo JS, Kilickiran Avci B, Yurdakul S, Sahin S, Ermis E, Dilekci B, Aytekin S, Turhan S, Gerede D, Hural R, Ozcan O, Candemir B, Erol C, Saha SK, Kiotsekoglou A, Gopal A, Govind S, Lindqvist P, Soderberg S, Kawata T, Daimon M, Sekita G, Miyazaki S, Ichikawa R, Maruyama M, Suzuki H, Daida H, Persic V, Lovric D, Jurin H, Pehar Pejcinovic V, Baricevic Z, Pezo Nikolic B, Ivanac Vranesic I, Separovic Hanzevacki J, Ahn H, Cho G, Lee S, Kim H, Kim Y, Sohn D, Igual Munoz B, Estornell Erill J, Gonzalez AM, Bel Minguez A, Perez Guillen M, Donate Bertolin L, Monmeneu Menadas J, Lopez Lereu P, La Huerta AA, Argudo AM, Igual Munoz B, Gonzalez AM, Valero DD, La Huerta AA, Fernandez PA, Ferrer JM, Rueda Soriano J, Buendia Sanchez F, Estornell Erill J, Carrasco J, Carvalho MS, De Araujo Goncalves P, Sousa P, Dores H, Marques H, Pereira Machado F, Gaspar A, Aleixo A, Mota Carmo M, Roquette J, Vassiliadis IV, Despotopoulos E, Kaitozis O, Tekedis C, Al-Mallah M, Nour K, Tomaszewski A, Kutarski A, Brzozowski W, Tomaszewski M, Oleszczak K, Tong J, Bian Y, Yang F, Li P, Chen L, Shen X, Xu Y, Yan L, Kilickiran Avci B, Yurdakul S, Sahin S, Ermis E, Dilekci B, Aytekin S, Hristova K, Marinov R, Georgiev S, Kaneva A, Lasarov S, Mitev P, Katova T, Pilosoff V, Ikonomidis I, Tzortzis S, Triantafyllidi H, Paraskevaidis I, Trivilou P, Papadakis I, Papadopoulos C, Pavlidis G, Anastasiou-Nana M, Lekakis J. Poster session: Aortic stenosis. Eur Heart J Cardiovasc Imaging 2012. [DOI: 10.1093/ehjci/jes264] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Cikes M, Tong L, Jasaityte R, Hamilton J, Sutherland G, D'hooge J, Yurdakul S, Oner F, Avci BK, Sahin S, Direskeneli H, Aytekin S, Fang F, Chan A, Zhang Q, Sanderson J, Kwong J, Yu C, Zaidi A, Raju H, Ghani S, Gati S, Cox A, Sheikh N, Sharma R, Sharma S, Kutty S, Kottam A, Padiyath A, Gao S, Drvol L, Lof J, Li L, Rangamani S, Danford D, Kuehne T, Rosner A, Avenarius D, Malm S, Iqbal A, Baltabaeva A, Schirmer H, Bijnens B, Myrmel T, Magalhaes A, Silva Marques J, Martins S, Carrilho Ferreira P, Jorge C, Silva D, Placido R, Goncalves S, Almeida A, Nunes Diogo A, Poulidakis E, Aggeli C, Sideris S, Dilaveris P, Gatzoulis K, Felekos I, Koutagiar I, Sfendouraki E, Roussakis G, Stefanadis C, Zhang Q, Sun J, Gao R, Feng Y, Liu X, Sheng W, Liu F, Yu C, Hallioglu O, Citirik D, Buyukakilli B, Ozeren M, Gurgul S, Tasdelen B, Rodriguez Lopez A, Rodriguez Lopez A, Garcia Cuenllas L, Garcia Cuenllas L, Medrano C, Medrano C, Granja S, Granja S, Marin C, Marin C, Maroto E, Maroto E, Alvarez T, Alvarez T, Ballesteros F, Ballesteros F, Camino M, Camino M, Centeno M, Centeno M, Alraies M, Aljaroudi W, Halley C, Rodriguez L, Grimm R, Thomas J, Jaber W, Knight D, Coghlan J, Muthurangu V, Grasso A, Toumpanakis C, Caplin M, Taylor A, Davar J, Mohlkert LA, Halvorsen C, Hallberg J, Sjoberg G, Norman M, Cameli M, Losito M, Lisi M, Natali B, Massoni A, Maccherini M, Chiavarelli M, Massetti M, Mondillo S, Sljivic A, Stojcevski B, Celic V, Pencic B, Majstorovic A, Cosic Z, Backovic S, Ilic-Djordjevic I, Muraru D, Gripari P, Esposito R, Tamborini G, Galderisi M, Ermacora D, Maffessanti F, Santoro C, Pepi M, Badano L, Bombardini T, Cini D, Picano E, Shahgaldi K, Gunyeli E, Sahlen A, Manouras A, Winter R, Banovic M, Vukcevic V, Ostojic M, Markovic Z, Mladenovic A, Trifunovic D, Stojkovic S, Bacic D, Dedovic D, Seferovic P, Huttin O, Coulibaly S, Mercy M, Schwartz J, Zinzius P, Sellal J, Popovic B, Marie P, Juilliere Y, Selton-Suty C, Gurzun MM, Ionescu A, Bahlay B, Jones G, Rimbas R, Enescu O, Mihaila S, Ciobanu A, Vinereanu D, Vlasseros I, Koumoulidis A, Tousoulis D, Veioglanis S, Avgeropoulou A, Katsi V, Stefanadis C, Kallikazaros I, Kiviniemi T, Ylitalo A, Airaksinen K, Lehtinen T, Saraste A, Pietila M, Karjalainen P, Trifunovic D, Ostojic M, Stankovic S, Vujisic-Tesic B, Petrovic M, Banovic M, Boricic M, Draganic G, Petrovic M, Stepanovic J, Kuznetsov V, Yaroslavskaya E, Pushkarev G, Krinochkin D, Zyrianov I, Dekleva M, Stevanovic A, Kleut M, Suzic Lazic J, Markovic Nikolic N, Akhunova S, Saifullina G, Sadykov A, Loudon M, D'arcy J, Arnold L, Reynolds R, Mabbet C, Prendergast B, Dahl J, Videbaek L, Poulsen M, Rudbaek T, Pellikka P, Rasmussen L, Moller J, Lowery C, Frenneaux M, Dawson D, Dwivedi G, Singh S, Rudd A, Mahadevan D, Srinivasan J, Jiminez D, Sahinarslan A, Vecchio F, Maccarthy P, Wendler O, Monaghan M, Harimura Y, Seo Y, Ishizu T, Noguchi Y, Aonuma K, Urdaniz MM, Palomares JFR, Rius JB, Surribas IB, Tura GT, Garcia-Moreno LG, Alujas TG, Masip AE, Mas PT, Dorado DG, Meimoun P, Germain A, Clerc J, Elmkies F, Zemir H, Luycx-Bore A, Nasr GM, Erraki A, Dulgheru R, Magne J, Capoulade R, Elhonsali Z, Pierard LA, Pibarot P, Lancellotti P, Wrideier S, Butz T, Schilling I, Gkiouras G, Sasko B, Van Bracht M, Prull M, Trappe HJ, Castillo Bernal F, Mesa Rubio M, Ruiz Ortiz M, Delgado Ortega M, Morenate Navio M, Baeza Garzon M, Del Pino ML, Toledano Delgado F, Mazuelos F, Suarez de Lezo Herreros de Tejada J, Prinz C, Schumann M, Burghardt A, Seggewiss H, Oldenburg O, Horstkotte D, Faber L, Bistola V, Banner N, Hedger M, Simon A, Rahman Haley S, Baltabaeva A, Adamyan K, Tumasyan LR, Chilingaryan A, Makavos G, Kouris N, Kostopoulos V, Stamatelatou M, Damaskos D, Kartsagoulis E, Olympios C, Sade L, Eroglu S, Bircan A, Pirat B, Sezgin A, Aydinalp A, Muderrisoglu H, Sargento L, Satendra M, Sousa C, Longo S, Lousada N, Dos Reis RP, Kuznetsov V, Krinochkin D, Gapon L, Vershinina A, Shurkevich N, Bessonova M, Yaroslavskaya E, Kolunin G, Sargento L, Satendra M, Sousa C, Lousada N, Dos Reis RP, Azevedo O, Lourenco M, Machado I, Guardado J, Medeiros R, Pereira A, Quelhas I, Lourenco A, Duman D, Sargin F, Kilicaslan B, Inan A, Ozgunes N, Goktas P, Ikonomidis I, Tzortzis S, Paraskevaidis I, Andreadou I, Katseli C, Katsimbri P, Papadakis I, Pavlidis G, Anastasiou-Nana M, Lekakis J, Charalampopoulos A, Howard L, Davies R, Gin-Sing W, Tzoulaki I, Grapsa I, Gibbs J, Dobson RA, Cuthbertson DJ, Burgess M, Lichodziejewska B, Kurnicka K, Goliszek S, Kostrubiec M, Dzikowska-Diduch O, Ciurzynski M, Krupa M, Grudzka K, Palczewski P, Pruszczyk P, Mansencal N, Marcadet D, Montalvan B, Dubourg O, Matveeva N, Nartsissova G, Chernjavskiy A, Eicher JC, Berthier S, Lorcerie B, Philip JL, Wolf JE, Wiesen P, Ledoux D, Massion P, Piret S, Canivet JL, Cusma-Piccione M, Zito C, Imbalzano E, Saitta A, Donato D, Madaffari A, Luzza G, Pipitone V, Tripodi R, Carerj S, Bombardini T, Gherardi S, Arpesella G, Maccherini M, Serra W, Del Bene R, Sicari R, Picano E, Al-Mallah M, Ananthasubramaniam K, Alam M, Chattahi J, Zweig B, Boedeker S, Song T, Khoo J, Davies J, Ang KL, Galinanes M, Chin D, Papamichael ND, Karassavidou D, Mpougialkli M, Antoniou S, Giannitsi S, Chachalos S, Gouva C, Naka K, Katopodis K, Michalis L, Tsang W, Cui V, Ionasec R, Takeuchi M, Houle H, Weinert L, Roberson D, Lang R, Altman M, Aussoleil A, Bergerot C, Sibellas F, Bonnefoy-Cudraz E, Derumeaux GA, Thibault H, Mohamed A, Omran A, Hussein M, Shahgaldi K, Gunyeli E, Sahlen A, Manouras A, Winter R, Squeri A, Binno S, Ferdenzi E, Reverberi C, Baldelli M, Barbieri A, Iaccarino D, Naldi M, Bosi S, Kalinowski M, Szulik M, Streb W, Stabryla J, Nowak J, Rybus-Kalinowska B, Kukulski T, Kalarus Z, Ouss A, Riezebos R, Nestaas E, Skranes J, Stoylen A, Brunvand L, Fugelseth D, Magalhaes A, Silva Marques J, Martins S, Carrilho Ferreira P, Placido R, Jorge C, Silva D, Goncalves S, Almeida A, Nunes Diogo A, Nagy A, Kovats T, Apor A, Nagy A, Vago H, Toth A, Toth M, Merkely B, Ranjbar S, Karvandi M, Hassantash S, Da Silva SG, Marin C, Rodriguez A, Marcos C, Rodriguez-Ogando A, Maroto E, Medrano C, Del Valle DI, Lopez-Fernandez T, Gemma D, Gomez-Rubin M, De Torres F, Feliu J, Canales M, Buno A, Ramirez E, Lopez-Sendon J, Magalhaes A, Silva Marques J, Martins S, Placido R, Silva D, Jorge C, Calisto C, Goncalves S, Almeida A, Nunes Diogo A, Jorge C, Cortez-Dias N, Goncalves S, Ribeiro S, Santos L, Silva D, Barreiros C, Bernardes A, Carpinteiro L, Sousa J, Kim SH, Choi W, Chidambaram S, Arunkumar R, Venkatesan S, Gnanavelu G, Dhandapani V, Ravi M, Karthikeyan G, Meenakshi K, Muthukumar D, Swaminathan N, Vitarelli A, Barilla F, Capotosto L, Truscelli G, Dettori O, Caranci F, D-Angeli I, De Maio M, De Cicco V, Bruno P, Doesch C, Sueselbeck T, Haghi D, Streitner F, Borggrefe M, Papavassiliu T, Laser K, Schaefer F, Fischer M, Habash S, Degener F, Moysich A, Haas N, Kececioglu D, Burchert W, Koerperich H, Dwivedi G, Al-Shehri H, Dekemp R, Ali I, Alghamdi A, Klein R, Scullion A, Beanlands R, Ruddy T, Chow B, Lipiec P, Szymczyk E, Michalski B, Wozniakowski B, Rotkiewicz A, Stefanczyk L, Szymczyk K, Kasprzak J, Angelov A, Yotov Y, Mircheva L, Kisheva A, Kunchev O, Ikonomidis I, Tsantes A, Triantafyllidi H, Tzortzis S, Dima K, Trivilou P, Papadopoulos C, Travlou A, Anastasiou-Nana M, Lekakis J, Bader R, Agoston-Coldea L, Lupu S, Mocan T, Loegstrup B, Hofsten D, Christophersen T, Moller J, Bjerre M, Flyvbjerg A, Botker H, Egstrup K, Park Y, Choi J, Yun K, Lee S, Han D, Kim J, Kim J, Kim J, Chun K. Poster Session Wednesday 5 December all day Display * Determinants of left ventricular performance. Eur Heart J Cardiovasc Imaging 2012. [DOI: 10.1093/ehjci/jes248] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Forner S, Andrade EL, Martini AC, Bento AF, Medeiros R, Koepp J, Calixto JB. Effects of kinin B(1) and B(2) receptor antagonists on overactive urinary bladder syndrome induced by spinal cord injury in rats. Br J Pharmacol 2012; 167:1737-52. [PMID: 22862305 PMCID: PMC3525875 DOI: 10.1111/j.1476-5381.2012.02127.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2012] [Revised: 07/25/2012] [Accepted: 07/26/2012] [Indexed: 11/28/2022] Open
Abstract
BACKGROUND AND PURPOSE Kinin B(1) and B(2) receptors have been implicated in physiological and pathological conditions of the urinary bladder. However, their role in overactive urinary bladder (OAB) syndrome following spinal cord injury (SCI) remains elusive. EXPERIMENTAL APPROACH We investigated the role of kinin B(1) and B(2) receptors in OAB after SCI in rats. KEY RESULTS SCI was associated with a marked inflammatory response and functional changes in the urinary bladder. SCI resulted in an up-regulation of B(1) receptor mRNA in the urinary bladder, dorsal root ganglion and spinal cord, as well as in B(1) protein in the urinary bladder and B(1) and B(2) receptor protein in spinal cord. Interestingly, both B(1) and B(2) protein expression were similarly distributed in detrusor muscle and urothelium of animals with SCI. In vitro stimulation of urinary bladder with the selective B(1) or B(2) agonist elicited a higher concentration-response curve in the SCI urinary bladder than in naive or sham urinary bladders. Cystometry revealed that treatment of SCI animals with the B(2) selective antagonist icatibant reduced the amplitude and number of non-voiding contractions (NVCs). The B(1) antagonist des-Arg(9) -[Leu(8) ]-bradykinin reduced the number of NVCs while the non-peptide B(1) antagonist SSR240612 reduced the number of NVCs, the urinary bladder capacity and increased the voiding efficiency and voided volume. CONCLUSIONS AND IMPLICATIONS Taken together, these data show the important roles of B(1) and B(2) receptors in OAB following SCI in rats and suggest that blockade of these receptors could be a potential therapeutic target for controlling OAB.
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Medeiros R, LaFerla FM. Astrocytes: conductors of the Alzheimer disease neuroinflammatory symphony. Exp Neurol 2012; 239:133-8. [PMID: 23063604 DOI: 10.1016/j.expneurol.2012.10.007] [Citation(s) in RCA: 164] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2012] [Revised: 09/25/2012] [Accepted: 10/05/2012] [Indexed: 12/30/2022]
Abstract
Alzheimer disease (AD) is the most prevalent cause of dementia in humans, and the symptoms are commonly manifested after the seventh decade of life. Numerous pathological changes have been described in the postmortem brains of AD patients, including senile plaques, neurofibrillary tangles, neuroinflammation, synapse loss, and neuronal death. Reactive astrocytes surrounding senile plaques seem to be responsible for the ongoing inflammatory process in the disease through the release of cytokines and other toxic products. However, little is known about the regulation of these cells in the AD brain. Here we discuss the potential translational impact of the recent findings of Carrero and colleagues, published in Experimental Neurology, that shows the underlying molecular mechanism of astrocyte activation in response to β-amyloid (Aβ). Likewise, the relevance of pro-inflammatory mediators tumor necrosis factor-α (TNF-α), interleukin-1β (IL-1β), cyclooxygenase-2 (COX-2) and nuclear factor-κB (NF-κB), as integral players in disease progression will be discussed.
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Fontenete S, Silva J, Teixeira AL, Ribeiro R, Bastos E, Pina F, Medeiros R. Controversies in using urine samples for Prostate Cancer detection: PSA and PCA3 expression analysis. Int Braz J Urol 2012; 37:719-26. [PMID: 22234006 DOI: 10.1590/s1677-55382011000600006] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/01/2011] [Indexed: 11/22/2022] Open
Abstract
PURPOSE Prostate cancer (PCa) is one of the most commonly diagnosed malignancies in the world. Although PSA utilization as a serum marker has improved prostate cancer detection it still presents some limitations, mainly regarding its specificity. The expression of this marker, along with the detection of PCA3 mRNA in urine samples, has been suggested as a new approach for PCa detection. The goal of this work was to evaluate the efficacy of the urinary detection of PCA3 mRNA and PSA mRNA without performing the somewhat embarrassing prostate massage. It was also intended to optimize and implement a methodological protocol for this kind of sampling. MATERIALS AND METHODS Urine samples from 57 patients with suspected prostate disease were collected, without undergoing prostate massage. Increased serum PSA levels were confirmed by medical records review. RNA was extracted by different methods and a preamplification step was included in order to improve gene detection by Real-Time PCR. RESULTS An increase in RNA concentration with the use of TriPure Isolation Reagent. Despite this optimization, only 15.8% of the cases showed expression of PSA mRNA and only 3.8% of prostate cancer patients presented detectable levels of PCA3 mRNA. The use of a preamplification step revealed no improvement in the results obtained. CONCLUSION This work confirms that prostate massage is important before urine collection for gene expression analysis. Since PSA and PCA3 are prostate specific, it is necessary to promote the passage of cells from prostate to urinary tract, in order to detect these genetic markers in urine samples.
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Basei FL, Cabrini DA, Figueiredo CP, Forner S, Hara DB, Nascimento AFZ, Ceravolo GS, Carvalho MHC, Bader M, Medeiros R, Calixto JB. Endothelium dependent expression and underlying mechanisms of des-Arg⁹-bradykinin-induced B₁R-mediated vasoconstriction in rat portal vein. Peptides 2012; 37:216-24. [PMID: 22868213 DOI: 10.1016/j.peptides.2012.07.020] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/26/2012] [Revised: 07/23/2012] [Accepted: 07/24/2012] [Indexed: 10/28/2022]
Abstract
Endothelial dysfunction has been implicated in portal vein obstruction, a condition responsible for major complications in chronic portal hypertension. Increased vascular tone due to disruption of endothelial function has been associated with an imbalance in the equilibrium between endothelium-derived relaxing and contracting factors. Herein, we assessed underlying mechanisms by which expression of bradykinin B(1) receptor (B(1)R) is induced in the endothelium and how its stimulation triggers vasoconstriction in the rat portal vein. Prolonged in vitro incubation of portal vein resulted in time- and endothelium-dependent expression of B(1)R and cyclooxygenase-2 (COX-2). Inhibition of protein kinase C (PKC) or phosphatidylinositol 3-kinase (PI3K) significantly reduced expression of B(1)R through the regulation of transcription factors, activator protein-1 (AP-1) and cAMP response element-binding protein (CREB). Moreover, pharmacological studies showed that B(1)R-mediated portal vein contraction was reduced by COX-2, but not COX-1, inhibitors. Notably, activation of endothelial B(1)R increased phospholipase A(2)/COX-2-derived thromboxane A(2) (TXA(2)) levels, which in turn mediated portal vein contraction through binding to TXA(2) receptors expressed in vascular smooth muscle cells. These results provide novel molecular mechanisms involved in the regulation of B(1)R expression and identify a critical role for the endothelial B(1)R in the modulation of portal vein vascular tone. Our study suggests a potential role for B(1)R antagonists as therapeutic tools for diseases where portal hypertension may be involved.
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Coelho A, Araujo A, Catarino R, Gomes M, Marques A, Medeiros R. Clinical Significance of Angiopoietin-2 Serum Levels in Non-Small Cell Lung Cancer. Ann Oncol 2012. [DOI: 10.1016/s0923-7534(20)32747-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Kitazawa M, Medeiros R, Laferla FM. Transgenic mouse models of Alzheimer disease: developing a better model as a tool for therapeutic interventions. Curr Pharm Des 2012; 18:1131-47. [PMID: 22288400 DOI: 10.2174/138161212799315786] [Citation(s) in RCA: 114] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2011] [Accepted: 12/19/2011] [Indexed: 12/13/2022]
Abstract
Alzheimer disease (AD) is the leading cause of dementia among elderly. Currently, no effective treatment is available for AD. Analysis of transgenic mouse models of AD has facilitated our understanding of disease mechanisms and provided valuable tools for evaluating potential therapeutic strategies. In this review, we will discuss the strengths and weaknesses of current mouse models of AD and the contribution towards understanding the pathological mechanisms and developing effective therapies.
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Teixeira A, Silva J, Ferreira M, Marques I, Gomes M, Mauricio J, Lobo F, Medeiros R. 891 Circulating MicroRNA-222 in Plasma – a Potential Biomarker for Renal Cell Carcinoma. Eur J Cancer 2012. [DOI: 10.1016/s0959-8049(12)71523-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Oliveira S, Ribeiro J, Sousa H, Pinto D, Baldaque I, Medeiros R. Genetic polymorphisms and cervical cancer development: ATM G5557A and p53bp1 C1236G. Oncol Rep 2011; 27:1188-92. [PMID: 22200742 PMCID: PMC3583604 DOI: 10.3892/or.2011.1609] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2011] [Accepted: 08/29/2011] [Indexed: 12/19/2022] Open
Abstract
Persistent infections by high-risk types of human papillomavirus (HPV) have been established as the etiological agent of cervical cancer. The integration of the HPV genome into the host genome is a crucial step in cervical carcinogenesis, although, correct activation of DNA damage repair pathways will avoid the development of cancer. Recent data indicate that several polymorphisms of key regulators from the DNA damage repair pathway (i.e. 53BP1 and ATM) are associated with cancer development susceptibility. We have developed a hospital-based retrospective study considering 429 cervical specimens from women with different cervical lesions including invasive carcinoma. This study aimed to evaluate the role of the ATM D1853N (5557G>A) and 53bp1 D353E (1236C>G) polymorphisms in the development of cervical cancer, using TaqMan SNP Genotyping Assays. Statistical analysis revealed that ATM 5557GG homozygous individuals (OR=1.94; p=0.044) are at increased risk of developing LSIL, while for the 53BP1 1236C>G polymorphism no association was found. Nevertheless, we observed a tendency for an increased risk of LSIL in 53BP1 1236C allele carriers (OR=1.63; p=0.069). Logistic regression adjusted for age revealed no significant differences from the non-adjusted analysis. This is the first study to evaluate the role of ATM G5557A and P53BP1 C1236G polymorphisms in cervical cancer susceptibility. This study reveals a possible trend of both polymorphisms for a genetic susceptibility pattern of cervical cancer development. Hence, our results may be of interest for future understanding of the progression of cervical cancer.
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Kenny C, Adhya S, Dworakowski R, Brickham B, Maccarthy P, Monaghan M, Guzzo A, Innocenti F, Vicidomini S, Lazzeretti D, Squarciotta S, De Villa E, Donnini C, Bulletti F, Guerrini E, Pini R, Bendjelid K, Viale J, Duperret S, Piriou V, Jacques D, Shahgaldi K, Silva C, Pedro F, Deister L, Brodin LA, Sahlen A, Manouras A, Winter R, Berjeb N, Cimadevilla C, Dreyfus J, Cueff C, Malanca M, Chiampan A, Vahanian A, Messika-Zeitoun D, Muraru D, Peluso D, Dal Bianco L, Beraldo M, Solda' E, Tuveri M, Cucchini U, Al Mamary A, Badano L, Iliceto S, Almuntaser I, King G, Norris S, Daly C, Ellis E, Murphy R, Erdei T, Denes M, Kardos A, Foldesi C, Temesvari A, Lengyel M, Bouzas Mosquera A, Broullon F, Alvarez-Garcia N, Peteiro J, Barge-Caballero G, Lopez-Perez M, Lopez-Sainz A, Castro-Beiras A, Luotolahti M, Luotolahti H, Kantola I, Viikari J, Andersen M, Ersboell M, Bro-Jeppesen J, Gustafsson F, Koeber L, Hassager C, Moller J, Coisne D, Diakov C, Vallet F, Lequeux B, Blouin P, Christiaens L, Esposito R, Santoro A, Schiano Lomoriello V, Raia R, Santoro C, De Simone G, Galderisi M, Sahlen A, Abdula G, Winter R, Kosmala W, Szczepanik-Osadnik H, Przewlocka-Kosmala M, Mysiak A, O' Moore-Sullivan T, Marwick T, Tan YT, Wenzelburger F, Leyva F, Sanderson J, Pichler P, Syeda B, Hoefer P, Zuckermann A, Binder T, Fijalkowski M, Koprowski A, Galaska R, Blaut K, Sworczak K, Rynkiewicz A, Lee S, Kim W, Jung L, Yun H, Song M, Ko J, Khalifa EA, Szymanski P, Lipczynska M, Klisieiwcz A, Hoffman P, Jorge C, Silva Marques J, Robalo Martins S, Calisto C, Mieiro M, Vieira S, Correia M, Carvalho De Sousa J, Almeida A, Nunes Diogo A, Park C, March K, Tillin T, Mayet J, Chaturvedi N, Hughes A, Di Bello V, Giannini C, Delle Donne M, De Sanctis F, Spontoni P, Cucco C, Corciu A, Grigoratos C, Bogazzi F, Balbarini A, Enescu O, Suran B, Florescu M, Cinteza M, Vinereanu D, Higuchi Y, Iwakura K, Okamura A, Date M, Fujii K, Jorge C, Cortez-Dias N, Silva D, Carrilho-Ferreira P, Silva Marques J, Magalhaes A, Ribeiro S, Goncalves S, Fiuza M, Pinto F, Jorge C, Cortez-Dias N, Silva D, Silva Marques J, Carrilho-Ferreira P, Placido R, Bordalo A, Goncalves S, Fiuza M, Pinto F, Grzywocz P, Mizia-Stec K, Chudek J, Gasior Z, Maceira Gonzalez AM, Cosin Sales J, Dalli E, Igual B, Diago J, Aguilar J, Ruvira J, Cimino S, Pedrizzetti G, Tonti G, Canali E, Petronilli V, Boccalini F, Mattatelli A, Hiramoto Y, Iacoboni C, Agati L, Trifunovic D, Ostojic M, Vujisic-Tesic B, Petrovic M, Nedeljkovic I, Banovic M, Boricic-Kostic M, Draganic G, Tesic M, Petrovic M, Gavina C, Lopes R, Lourenco A, Almeida J, Rodrigues J, Pinho P, Zamorano J, Leite-Moreira A, Rocha-Goncalves F, Clavel MA, Capoulade R, Dumesnil J, Mathieu P, Despres JP, Pibarot P, Bull S, Pitcher A, Augustine D, D'arcy J, Karamitsos T, Rai A, Prendergast B, Becher H, Neubauer S, Myerson S, Magne J, Donal E, Davin L, O'connor K, Pirlet C, Rosca M, Szymanski C, Cosyns B, Pierard L, Lancellotti P, Calin A, Rosca M, Popescu B, Beladan C, Enache R, Lupascu L, Sandu C, Lancellotti P, Pierard L, Ginghina C, Kamperidis V, Hadjimiltiadis S, Sianos G, Anastasiadis K, Grosomanidis V, Efthimiadis G, Karvounis H, Parharidis G, Styliadis I, Gonzalez Canovas C, Munoz-Esparza C, Bonaque Gonzalez J, Fernandez A, Salar Alcaraz M, Saura Espin D, Pinar Bermudez E, Oliva-Sandoval M, De La Morena Valenzuela G, Valdes Chavarri M, Dreyfus J, Brochet E, Lepage L, Attias D, Cueff C, Detaint D, Himbert D, Iung B, Vahanian A, Messika-Zeitoun D, Pirat B, Little S, Chang S, Tiller L, Kumar R, Zoghbi W, Lee APW, Hsiung M, Wan S, Wong R, Luo F, Fang F, Xie J, Underwood M, Sun J, Yu C, Jansen R, Tietge W, Sijbrandij K, Cramer M, De Heer L, Kluin J, Chamuleau SAJ, Oliveras Vila T, Ferrer Sistach E, Delgado Ramis L, Lopez Ayerbe J, Vallejo Camazon N, Gual Capllonch F, Garcia Alonso C, Teis Soley A, Ruyra Baliarda X, Bayes Genis A, Negrea S, Alexandrescu C, Bourlon F, Civaia F, Dreyfus G, Paetzold S, Luha O, Hoedl R, Stoschitzky G, Pfeiffer K, Zweiker D, Pieske B, Maier R, Sevilla T, Revilla A, Lopez J, Vilacosta I, Arnold R, Gomez I, San Roman J, Nikcevic G, Djordjevic Dikic A, Djordjevic S, Raspopovic S, Jovanovic V, Kircanski B, Pavlovic S, Milasinovic G, Ruiz-Zamora I, Cabrera Bueno F, Molina M, Fernandez-Pastor J, Pena J, Linde A, Barrera A, Alzueta J, Bremont C, Bensaid A, Alonso H, Zaghden O, Nahum J, Dubois-Rande J, Gueret P, Lim P, Lee SP, Park K, Kim HR, Lee JH, Ahn HS, Kim JH, Kim HK, Kim YJ, Sohn DW, Niemann M, Herrmann S, Hu K, Liu D, Beer M, Ertl G, Wanner C, Takenaka T, Tei C, Weidemann F, Silva D, Madeira H, Mendes Pedro M, Nunes Diogo A, Brito D, Schiano Lomoriello V, Ippolito R, Santoro A, Esposito R, Raia R, De Palma D, Galderisi M, Gati S, Oxborough D, Reed M, Zaidi A, Ghani S, Sheikh N, Papadakis M, Sharma S, Chow V, Ng A, Pasqualon T, Zhao W, Hanzek D, Chung T, Yeoh T, Kritharides L, Florescu M, Magda L, Enescu O, Mihalcea D, Suran B, Jinga D, Mincu R, Cinteza M, Vinereanu D, Ferrazzi E, Segato G, Folino F, Famoso G, Senzolo M, Bellu R, Corbetti F, Iliceto S, Tona F, Azevedo O, Quelhas I, Guardado J, Fernandes M, Pereira V, Medeiros R, Lourenco A, Sousa P, Santos W, Pereira S, Marques N, Mimoso J, Marques V, Jesus I, Rustad L, Nytroen K, Gullestad L, Amundsen B, Aakhus S, Linhartova K, Sterbakova G, Necas J, Kovalova S, Cerbak R, Nelassov N, Korotkijan N, Shishkina A, Gagieva B, Nagaplev M, Eroshenko O, Morgunov M, Parmon S, Velthuis S, Van Gent M, Post M, Westermann C, Mager J, Snijder R, Koyalakonda SP, Anderson M, Burgess M, Bergenzaun L, Chew M, Ohlin H, Gjerdalen GF, Hisdal J, Solberg E, Andersen T, Radunovic Z, Steine K, Rutz T, Kuehn A, Petzuch K, Pekala M, Elmenhorst J, Fratz S, Mueller J, Hager A, Hess J, Vogt M, Van Der Linde D, Van De Laar I, Wessels M, Bekkers J, Moelker A, Tanghe H, Van Kooten F, Oldenburg R, Bertoli-Avella A, Roos-Hesselink J, Cresti A, Fontani L, Calabria P, Capati E, Severi S, Lynch M, Saraf S, Sandler B, Yoon S, Kim S, Ko C, Ryu S, Byun Y, Seo H, Ciampi Q, Rigo F, Pratali L, Gherardi S, Villari B, Picano E, Sicari R, Celutkiene J, Zakarkaite D, Skorniakov V, Zvironaite V, Grabauskiene V, Sinicyna J, Gruodyte G, Janonyte K, Laucevicius A, O'driscoll J, Schmid K, Marciniak A, Saha A, Gupta S, Smith R, Sharma R, Bouzas Mosquera A, Alvarez Garcia N, Peteiro J, Broullon F, Prada O, Rodriguez Vilela A, Barge Caballero G, Lopez Perez M, Lopez Sainz A, Castro Beiras A, Kochanowski J, Scislo P, Piatkowski R, Grabowski M, Marchel M, Roik M, Kosior D, Opolski G, Van De Heyning CM, Magne J, O'connor K, Mahjoub H, Pibarot P, Pirlet C, Pierard L, Lancellotti P, Clausen H, Basaggianis C, Newton J, Del Pasqua A, Carotti A, Di Carlo D, Cetrano E, Toscano A, Iacobelli R, Esposito C, Chinali M, Pongiglione G, Rinelli G, Larsson M, Larsson M, Bjallmark A, Winter R, Caidahl K, Brodin L, Velthuis S, Van Gent M, Mager J, Westermann C, Snijder R, Post M, Gao H, Coisne D, Lugiez M, Guivier C, Rieu R, D'hooge J, Lugiez M, Hang G, D'hooge J, Guerin C, Christiaens L, Menard M, Voigt JU, Coisne D, Dungu J, Campos G, Jaffarulla R, Gomes-Pereira S, Sutaria N, Baker C, Nihoyannopoulos P, Bellamy M, Adhya S, Harries D, Walker N, Pearson P, Reiken J, Batteson J, Kamdar R, Murgatroyd F, Monaghan M, D'andrea A, Riegler L, Scarafile R, Pezzullo E, Salerno G, Bossone E, Limongelli G, Russo M, Pacileo G, Calabro' R, Kang Y, Cui J, Chen H, Pan C, Shu X, Kiotsekoglou A, Saha S, Toole R, Govind S, Gopal A, Crispi F, Bijnens B, Sepulveda-Swatson E, Rojas-Benavente J, Dominguez J, Illa M, Eixarch E, Sitges M, Gratacos E, Prinz C, Faludi R, Walker A, Amzulescu M, Gao H, Uejima T, Fraser A, Voigt J, Esmaeilzadeh M, Maleki M, Amin A, Vakilian F, Noohi F, Ojaghi Haghighi Z, Nakhostin Davari P, Bakhshandeh Abkenar H, Rimbas R, Dulgheru R, Margulescu A, Florescu M, Vinereanu D, Toscano A, Chinali M, D' Asaro M, Iacobelli R, Del Pasqua A, Esposito C, Mizzon C, Parisi F, Pongiglione G, Rinelli G, Jung BC, Lee BY, Kang HJ, Kim S, Kim M, Kim Y, Cho D, Park S, Hong S, Lim D, Shim W, Bellsham-Revell H, Tibby S, Bell AJ, Miller OI, Greil G, Simpson JM, Providencia RA, Trigo J, Botelho A, Gomes P, Seca L, Barra S, Faustino A, Costa G, Quintal N, Leitao-Marques A, Nestaas E, Stoylen A, Fugelseth D, Mornos C, Ionac A, Petrescu L, Cozma D, Dragulescu D, Mornos A, Pescariu S, Fontana A, Abbate M, Cazzaniga M, Giannattasio C, Trocino G, Laser K, Faber L, Fischer M, Koerperich H, Kececioglu D, Elnoamany MF, Dawood A, Elhabashy M, Khalil Y, Fontana A, Abbate M, Cazzaniga M, Giannattasio C, Trocino G, Piriou N, Warin-Fresse K, Caza M, Fau G, Crochet D, Xhabija N, Allajbeu I, Petrela E, Heba M, Barreiro Perez M, Martin Fernandez M, Renilla Gonzalez A, Florez Munoz J, Fernandez Cimadevilla O, Alvarez Pichel I, Velasco Alonso E, Leon Duran D, Benito Martin E, Secades Gonzalez S, Gargani L, Pang P, Davis E, Schumacher A, Sicari R, Picano E, Silva Ferreira A, Bettencourt N, Matos P, Oliveira L, Almeida A, Maceira Gonzalez AM, Cosin-Sales J, Igual B, Lopez Lereu M, Monmeneu J, Estornell J, Tsverava M, Tsverava D, Varela A, Salagianni M, Galani I, Andreakos E, Davos C, Ikonomidis I, Lekakis J, Tritakis V, Kadoglou N, Papadakis J, Trivilou P, Tzortzis S, Koukoulis C, Paraskevaidis I, Anastasiou-Nana M, Kim G, Youn H, Park C, Ibrahimi P, Bajraktari G, Jashari F, Ahmeti A, Poniku A, Haliti E, Henein M, Pezo Nikolic B, Jurin H, Lovric D, Baricevic Z, Ivanac Vranesic I, Lovric Bencic M, Ernst A, Separovic Hanzevacki J. Poster Session 3: Friday 9 December 2011, 08:30-12:30 * Location: Poster Area. EUROPEAN JOURNAL OF ECHOCARDIOGRAPHY 2011. [DOI: 10.1093/ejechocard/jer214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Gomes M, Coelho A, Araújo A, Catarino R, Medeiros R. 1137 POSTER Is MMP-9 Q279R a Possible Marker of Prognostic in Non Small Cell Lung Cancer? Eur J Cancer 2011. [DOI: 10.1016/s0959-8049(11)70780-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Assis J, Gomes M, Marques D, Marques I, Catarino R, Pereira D, Medeiros R. 1152 POSTER CYP3A4*1B Polymorphism – a Prognostic Value in Ovarian Cancer? Eur J Cancer 2011. [DOI: 10.1016/s0959-8049(11)70795-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Teixeira A, Marques I, Ferreira M, Gomes M, Lobo F, Medeiros R. 7155 POSTER Is Epidermal Growth Factor Receptor R497K Polymorphism in Renal Cell Carcinoma a Molecular Marker of Advanced Disease? Eur J Cancer 2011. [DOI: 10.1016/s0959-8049(11)72070-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Silva IH, Nogueira-Silva C, Figueiredo T, Lombo L, Faustino I, Catarino R, Nogueira A, Pereira D, Medeiros R. 8037 POSTER Linking XRCC1 Arg399Gln and GGH -401 C>T Polymorphisms to Cervical Cancer Risk. Eur J Cancer 2011. [DOI: 10.1016/s0959-8049(11)72125-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Marques I, Teixeira A, Ferreira M, Lobo F, Assis J, Medeiros R. 7116 POSTER Influence of BIRC5 -31G/C Polymorphism in Renal Cell Carcinoma (RCC) Development and Metastization. Eur J Cancer 2011. [DOI: 10.1016/s0959-8049(11)72031-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Medeiros R, Kitazawa M, Caccamo A, Baglietto-Vargas D, Estrada-Hernandez T, Cribbs DH, Fisher A, LaFerla FM. Loss of muscarinic M1 receptor exacerbates Alzheimer's disease-like pathology and cognitive decline. THE AMERICAN JOURNAL OF PATHOLOGY 2011; 179:980-91. [PMID: 21704011 PMCID: PMC3157199 DOI: 10.1016/j.ajpath.2011.04.041] [Citation(s) in RCA: 89] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2011] [Revised: 03/29/2011] [Accepted: 04/22/2011] [Indexed: 02/03/2023]
Abstract
Alzheimer's disease (AD) is pathologically characterized by tau-laden neurofibrillary tangles and β-amyloid deposits. Dysregulation of cholinergic neurotransmission has been implicated in AD pathogenesis, contributing to the associated memory impairments; yet, the exact mechanisms remain to be defined. Activating the muscarinic acetylcholine M(1) receptors (M(1)Rs) reduces AD-like pathological features and enhances cognition in AD transgenic models. To elucidate the molecular mechanisms by which M(1)Rs affect AD pathophysiological features, we crossed the 3xTgAD and transgenic mice expressing human Swedish, Dutch, and Iowa triple-mutant amyloid precursor protein (Tg-SwDI), two widely used animal models, with the M(1)R(-/-) mice. Our data show that M(1)R deletion in the 3xTgAD and Tg-SwDI mice exacerbates the cognitive impairment through mechanisms dependent on the transcriptional dysregulation of genes required for memory and through acceleration of AD-related synaptotoxicity. Ablating the M(1)R increased plaque and tangle levels in the brains of 3xTgAD mice and elevated cerebrovascular deposition of fibrillar Aβ in Tg-SwDI mice. Notably, tau hyperphosphorylation and potentiation of amyloidogenic processing in the mice with AD lacking M(1)R were attributed to changes in the glycogen synthase kinase 3β and protein kinase C activities. Finally, deleting the M(1)R increased the astrocytic and microglial response associated with Aβ plaques. Our data highlight the significant role that disrupting the M(1)R plays in exacerbating AD-related cognitive decline and pathological features and provide critical preclinical evidence to justify further development and evaluation of selective M(1)R agonists for treating AD.
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Bicca MA, Figueiredo CP, Piermartiri TC, Meotti FC, Bouzon ZL, Tasca CI, Medeiros R, Calixto JB. The selective and competitive N-methyl-D-aspartate receptor antagonist, (-)-6-phosphonomethyl-deca-hydroisoquinoline-3-carboxylic acid, prevents synaptic toxicity induced by amyloid-β in mice. Neuroscience 2011; 192:631-41. [PMID: 21756976 DOI: 10.1016/j.neuroscience.2011.06.038] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2011] [Revised: 06/09/2011] [Accepted: 06/10/2011] [Indexed: 10/18/2022]
Abstract
The toxicity of amyloid β (Aβ) is highly associated with Alzheimer's disease (AD), which has a high incidence in elderly people worldwide. While the current treatment for moderate and severe AD includes blockage of the N-methyl-d-aspartate receptor (NMDAR), the molecular mechanisms of its effect are still poorly understood. Herein, we report that a single i.p. administration of the selective and competitive (NMDAR) antagonist LY235959 reduced Aβ neurotoxicity by preventing the down-regulation of glial glutamate transporters (glutamate-aspartate transporter (GLAST) and glutamate transporter-1 (GLT-1)), the decrease in glutamate uptake, and the production of reactive oxygen species (ROS) induced by Aβ(1-40). Importantly, the blockage of NMDAR restored the Aβ(1-40)-induced synaptic dysfunction and cognitive impairment. However, LY235959 failed to prevent the inflammatory response associated with Aβ(1-40) treatment. Altogether, our data indicate that the acute administration of Aβ promotes oxidative stress, a decrease in glutamate transporter expression, and neurotoxicity. Our results reinforce the idea that NMDAR plays a critical regulatory action in Aβ toxicity and they provide further pre-clinical evidence for the potential role of the selective and competitive NMDAR antagonists in the treatment of AD.
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