
handle: 10261/135554
[ES]: La S-adenosilmetionina es un compuesto muy versátil, conocido por participar en casi tantas reacciones como el ATP. Su papel como donante de grupos metilo es esencial para la producción de una gran variedad de moléculas, así como para la modificación de proteínas y ácidos nucleicos. Por ello, no resulta sorprendente que se hayan detectado alteraciones en el ciclo de la metionina en una gran variedad de patologías, que incluyen desde enfermedades hepáticas hasta el Alzheimer o enfermedades raras. En muchos de estos casos la reducción de los niveles de S- adenosilmetionina se acompaña de la presencia de estrés oxidativo. Este hecho ha inducido el estudio de una posible regulación redox del ciclo de la metionina, que se ha enfocado principalmente a las metionina adenosiltransferasas, que son las enzimas encargadas de la síntesis de S-adenosilmetionina. Esta revisión pretende dar una visión global de los nuevos niveles a los que se ejerce el control redox de estas enzimas y su importancia en hepatopatología, campo en el cual hemos realizado importantes aportaciones.
[EN]: S-adenosylmethionine is a very versatile compound known to be involved in as many reactions as ATP. Its role as methyl donor is key for the production of a large variety of molecules, as well as, for the modification of proteins and nucleic acids. Therefore, it is not surprising that impairments in the methionine cycle are found in many diseases including liver pathologies, Alzheimer or rare diseases. In most of these cases, reductions in S-adenosylmethionine concentrations correlate with the presence of oxidative stress. This fact prompted the study of a putative redox regulation of the methionine cycle that has been focused especially on methionine adenosyltransferases, the enzymes that synthesize S-adenosylmethionine. This review is intended to provide an outline of the new levels at which the redox control of these enzymes is exerted and their importance for liver pathology, a field in which we have made several key contributions.
The work reviewed in this manuscript has been supported by grants of the Ministerio de Economía y Competitividad (PB94-0087, PM97-0064, BMC2002-00243, BMC2005-00050, BFU2008-00666/BMC, BFU2009-08977/BMC) and Fondo de Investigación Sanitaria (FIS 01/1077, C03/08, PI05/0563).
Accésit Premio Real Academia Nacional de Farmacia del Concurso Científico 2015 de la Real Academia Nacional de Farmacia.
Peer reviewed
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