摘要

Mediante la introducci車n, uso y manejo de herramientas de base gen車mica, la investigaci車n sobre las alteraciones gen谷ticas que est芍n en el origen de enfermedades tan comunes como el c芍ncer han sufrido una revoluci車n t谷cnica comparable a la incorporaci車n del microscopio en los laboratorios. Ahora, estudiar la relaci車n gen-enfermedad no est芍 basado en analizar un gen 迆nico y sus efectos sino en analizar el comportamiento de miles de genes de forma simult芍nea. Estos sistemas, denominados gen谷ricamente como matrices, arrays, microarrays o biochips, est芍n cambiando nuestra forma de plantear problemas y extraer conclusiones de los experimentos ya que nos ofrecen una foto compleja del conjunto del genoma. Los an芍lisis de expresi車n mediante microarrays de cDNA o de oligos ya son accesibles a la comunidad cient赤fica espa ola. Los resultados, adem芍s, fascinan a los investigadores ya que son bastante reproducibles y aportan una gran cantidad de informaci車n sobre la regulaci車n de la expresi車n g谷nica en condiciones normales y patol車gicas. Through the introduction, use and management of genome-based tools, research into genetic alterations that give rise to diseases as common as cancer has undergone a technical revolution comparable to the introduction of the microscope in laboratories. Now, study of the gene-disease relationship is no longer based on analysing a single gene and its effects, but on analysing the behaviour of thousands of genes in a simultaneous form. These systems, generically called matrices, arrays, microarrays or biochips, are changing the way we pose problems and draw conclusions from experiments, since they offer us a complex photo of the genome as a whole. Analyses of expression through microarrays of cDNI or oligos are now accessible to the Spanish scientific community. The results have proved fascinating to researchers since they can be reproduced easily and contribute a great quantity of information on the regulation of the gene expression in normal and pathological conditions.

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