No label defined (Q3208832)

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Revision as of 08:53, 14 October 2021 by DG Regio (talk | contribs) (‎Created claim: summary (P836): INITIALLY THE RENIN ANGIOTENSIN SYSTEM (MRS.) WAS CONSIDERED A HORMONAL SYSTEM RELATED TO THE CONTROL OF ARTERIAL PRESSURE. MORE RECENTLY, LOCAL WOMEN WERE IDENTIFIED IN VARIOUS TISSUES, WHOSE MISMATCH CAUSES DEGENERATIVE DISORDERS LINKED TO OXIDATIVE STRESS AND INFLAMMATION. WE HAVE DEMONSTRATED OVER THE LAST YEARS THE LOCAL MRS PRESENCE IN THE BLACK SUBSTANCE (SN) AND THE STRIATE WHERE ANGIOTENSIN II (IIA), ACTIVATING TYPE I RECEPTORS (AT1), P...)
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Project Q3208832 in Spain
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Project Q3208832 in Spain

    Statements

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    237,160.0 Euro
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    296,450.0 Euro
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    80.0 percent
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    1 January 2016
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    31 December 2018
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    UNIVERSIDAD DE SANTIAGO DE COMPOSTELA
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    42°52'49.51"N, 8°32'45.10"W
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    15078
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    INICIALMENTE EL SISTEMA RENINA ANGIOTENSINA (SRA) FUE CONSIDERADO COMO UN SISTEMA HORMONAL RELACIONADO CON EL CONTROL DE LA PRESION ARTERIAL. MAS RECIENTEMENTE, SE IDENTIFICARON SRA LOCALES EN DIVERSOS TEJIDOS, CUYO DESAJUSTE OCASIONA TRASTORNOS DEGENERATIVOS LIGADOS A ESTRES OXIDATIVO E INFLAMACION. NOSOTROS HEMOS DEMOSTRADO EN LOS ULTIMOS AÑOS LA PRESENCIA SRA LOCAL EN LA SUBSTANCIA NEGRA (SN) Y EL ESTRIADO DONDE ANGIOTENSINA II (AII), ACTIVANDO RECEPTORES TIPO I (AT1), DESEMPEÑA UN PAPEL IMPORTANTE EN PROCESOS DE ESTRES OXIDATIVO (EO) Y NEUROINFLAMACION QUE AFECTAN AL PROGRESO DE LA DEGENERACION DOPAMINERGICA. SIN EMBARGO, LOS MECANISMOS IMPLICADOS EN ESTOS PROCESOS NO HAN SIDO TOTALMENTE CLARIFICADOS. SU ESCLARECIMIENTO NO SOLO TIENE INTERES DESDE EL PUNTO DE VISTA DEL FUNCIONAMIENTO DEL SNC SINO TAMBIEN PARA EL DISEÑO DE POSIBLES TERAPIAS NEUROPROTECTORAS CONTRA LA E. DE PARKINSON (EP) Y POSIBLEMENTE OTRAS ENFERMEDADES DEL SNC DONDE NEUROINFLAMACION Y EO DESEMPEÑEN UN PAPEL PRINCIPAL. _x000D_ EN ESTUDIOS PREVIOS HEMOS OBTENIDO INFORMACION SOBRE EL PRINCIPAL EJE ACTIVADOR DEL SRA (AII/AT1/NADPH-OXIDASA: PRO-OXIDANTE, PRO-INFLAMATORIO), UTILIZANDO MODELOS HABITUALES DE EP, BASADOS EN NEUROTOXINAS DOPAMINERGICAS. ANTES DE CUALQUIER PASO HACIA LA TRASLACION A LA CLINICA ES NECESARIO ESTUDIAR ESTE TEMA EN UN ESCENARIO MAS PROXIMO A LA EP. LA APARICION DE UN NOVEDOSO MODELO BASADO EN LA AGREGACION DE ALFA-SINUCLEINA INTRODUCIDA MEDIANTE VECTORES VIRALES PERMITIRA ABORDAR ESTE OBJETIVO. POR OTRA PARTE, AUNQUE EL EJE AII/AT1 CONSTITUYE EL EJE PRINCIPAL DEL SRA Y SU INHIBICION HA DADO LUGAR YA A TRATAMIENTOS FUNDAMENTALES EN EL AMBITO CARDIOVASCULAR Y RENAL, LA FUNCION DE OTROS COMPONENTES DE MAS RECIENTE CONOCIMIENTO, YA ACTIVADORES (PRORRENINA/RECEPTOR DE PRORRENINA) O INHIBIDORES/CONTRA REGULADORES DEL SRA (RECEPTORES AT2; ANGIOTENSINA-(1-7)/RECEPTOR MAS), ES BASICAMENTE DESCONOCIDA, EN ESPECIAL EN EL AMBITO QUE NOS OCUPA. LA CLARIFICACION DE ESTOS COMPONENTES NO SOLO PERMITIRA EL MEJOR CONOCIMIENTO DEL PAPEL DEL SRA EN EL SNC Y SUS ALTERACIONES PATOLOGICAS, SINO TAMBIEN A UN DISEÑO MAS ADECUADO DE ESTRATEGIAS DE NEUROPROTECCION. _x000D_ FINALMENTE, NUESTROS DATOS SOBRE INTERACCION ENTRE DOPAMINA Y AII, JUNTO CON UNA SERIE DE DATOS, QUE DEMUESTRAN POR UN LADO QUE DOPAMINA REGULA NEUROGENESIS EN LA ZONA SUBVENTRICULAR (ZSV) Y POR OTRO QUE SRA MODULA PROLIFERACION Y DIFERENCIACION DE PRECURSORES NEURALES, NOS HACEN PENSAR EN LA POSIBILIDAD DE QUE SRA PUEDA MEDIAR LOS EFECTOS DE DOPAMINA SOBRE NEUROGENESIS EN LA ZSV. COMO CONSECUENCIA, MANIPULACIONES DEL SRA LOCAL PODRIAN SER DE UTILIDAD FUTURA EN EL CAMPO DEL REEMPLAZAMIENTO NEURONAL Y LA NEUROREPARACION EN EP. PRETENDEMOS EN ESTE PROYECTO OBTENER DATOS QUE SIRVAN COMO BASE PARA EL DESARROLLO DE FUTUROS PROYECTOS EN ESTE CAMPO. _x000D_ TODO ELLO SERA INVESTIGADO A TRAVES LOS SIGUIENTES OBJETIVOS CONCRETOS:_x000D_ 1. DETERMINAR EL PAPEL DEL SRA EN LA DEGENERACION NEURONAL DOPAMINERGICA INDUCIDA POR AGREGACION DE ALFA-SINUCLEINA._x000D_ 2. CONOCER EL PAPEL DE EJE PRORRENINA/RECEPTOR DE PRORRENINA EN LA RESPUESTA INFLAMATORIA MICROGLIAL Y LA DEGENERACION DOPAMINERGICA._x000D_ 3. SABER LA FUNCION DEL RECEPTOR AT2 EN LA RESPUESTA INFLAMATORIA MICROGLIAL Y ASTROGLIAL_x000D_ 4. INVESTIGAR SI EL EJE ANGIOTENSINA-(1-7)/RECEPTOR MAS ESTA PRESENTE EN GLIA Y NEURONAS DOPAMINERGICAS Y DESEMPEÑA ALGUN PAPEL FUNCIONAL._x000D_ 5. INVESTIGAR SI SRA MEDIA LOS EFECTOS DE DOPAMINA SOBRE CELULAS MADRE/PROGENITORAS DE LA ZSV. (Spanish)
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    INITIALLY THE RENIN ANGIOTENSIN SYSTEM (MRS.) WAS CONSIDERED A HORMONAL SYSTEM RELATED TO THE CONTROL OF ARTERIAL PRESSURE. MORE RECENTLY, LOCAL WOMEN WERE IDENTIFIED IN VARIOUS TISSUES, WHOSE MISMATCH CAUSES DEGENERATIVE DISORDERS LINKED TO OXIDATIVE STRESS AND INFLAMMATION. WE HAVE DEMONSTRATED OVER THE LAST YEARS THE LOCAL MRS PRESENCE IN THE BLACK SUBSTANCE (SN) AND THE STRIATE WHERE ANGIOTENSIN II (IIA), ACTIVATING TYPE I RECEPTORS (AT1), PLAYS AN IMPORTANT ROLE IN OXIDATIVE STRESS (EO) AND NEUROINFLAMACION PROCESSES THAT AFFECT THE PROGRESS OF DOPAMINERGIC DEGENERATION. HOWEVER, THE MECHANISMS INVOLVED IN THESE PROCESSES HAVE NOT BEEN FULLY CLARIFIED. ITS CLARIFICATION IS NOT ONLY OF INTEREST FROM THE POINT OF VIEW OF THE FUNCTIONING OF THE CNS BUT ALSO IN THE DESIGN OF POSSIBLE NEUROPROTECTIVE THERAPIES AGAINST PARKINSON’S E. (EP) AND POSSIBLY OTHER CNS DISEASES WHERE NEUROINFLAMACION AND EO PLAY A LEADING ROLE. _x000D_ in PREVIOUS STUDIES WE OBTENED INFORMATION ON THE PRINCIPAL AYE ACTIVATOR OF SRA (AII/AT1/NADPH-OXIDASA: PRO-OXIDANT, PRO-INFLAMMATORY), USING COMMON MODELS OF PE, BASED ON DOPAMINERGIC NEUROTOXINS. BEFORE ANY STEP TOWARDS THE TRANSLATION TO THE CLINIC IT IS NECESSARY TO STUDY THIS TOPIC IN A SCENARIO CLOSER TO THE EP. THE APPEARANCE OF A NOVEL MODEL BASED ON THE AGGREGATION OF ALPHA-SYNUCLEIN INTRODUCED BY VIRAL VECTORS WILL ALLOW THIS OBJECTIVE TO BE ADDRESSED. MOREOVER, ALTHOUGH THE AII/AT1 AXIS IS THE MAIN AXIS OF THE MS AND HER INHIBITION HAS ALREADY LED TO FUNDAMENTAL TREATMENTS IN THE CARDIOVASCULAR AND RENAL FIELD, THE FUNCTION OF OTHER MORE RECENT KNOWLEDGE COMPONENTS, EITHER ACTIVATORS (PRORENIN/PRORRENIN RECEPTOR) OR INHIBITORS/AGAIN REGULATORS OF MS (AT2 RECEPTORS; ANGIOTENSINA-(1-7)/RECEPTOR MAS), IS BASICALLY UNKNOWN, ESPECIALLY IN THE FIELD AT HAND. THE CLARIFICATION OF THESE COMPONENTS WILL NOT ONLY ALLOW THE BETTER KNOWLEDGE OF THE ROLE OF THE MRS IN THE CNS AND ITS PATHOLOGICAL ALTERATIONS, BUT ALSO TO A MORE APPROPRIATE DESIGN OF NEUROPROTECTION STRATEGIES. _x000D_ finally, OUR DATA ON INTERACTION BETWEEN DOPAMINA AND AII, WE WITH A SERIE OF DATA, who demonstrate by a side that DOPAMINA REGULA neurogenesis in the subventricular zone (ZSV) and for another one that is a modulus PROLIFERATION AND DIFFERENTATION OF NEURAL PRICES, they make us think about the postibility of which it is possible to measure the effects of dopamine on neurogenesis in the ZSV. AS A RESULT, MANIPULATIONS OF THE LOCAL LADY COULD BE OF FUTURE USE IN THE FIELD OF NEURONAL REPLACEMENT AND NEUROREPARACION IN EP. WE INTEND IN THIS PROJECT TO OBTAIN DATA THAT WILL SERVE AS A BASIS FOR THE DEVELOPMENT OF FUTURE PROJECTS IN THIS FIELD. _x000D_ all WE WE BE RESEARCH TO THE NEXT CONCERNING OBJECTIVES:_x000D_ 1. Determine the SRA PAPEL IN NEURONAL DOPAMINERgic DEGENERATION INDUCTED BY ALFA-SINUCLEINE Aggregation._x000D_ 2. To know the PRORRENIN EJE PAPER/PRORRENIN RECEPTOR in the microglial INFLAMATOR RESPONSE AND DOPAMINERGIC DEGENERATION._x000D_ 3. To know the role of the RECEPTOR AT2 in the microglial and ASTROGLIAL_x000D_ 4. Investigate Whether ANGIOTENSINE-(1-7)/RECEPTOR is presently present in GLIA and dopaminergical NEURONAS and desempresses FUNCIONAL PAPEL._x000D_ 5. INVESTIGATE WHETHER MS. MEDIATES THE EFFECTS OF DOPAMINE ON MOTHER/PROGENITAL CELLS OF SVZ. (English)
    14 October 2021
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    Santiago de Compostela
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    Identifiers

    BFU2015-70523-P
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