Nerea Bilbao Aldaiturriaga, Ángela Gutiérrez Camino, África García-Orad Carles, Idoia Martín Guerrero
Osteosarcoma (OS) is the most common primary bone cancer that occurs primarily in children, adolescents, and young adults. The fact that OS occurs at an early age suggests that there is a strong genetic component at its source. Several studies have suggested that susceptibility to OS development is due to small common low-pene trance variants, such as SNPs. The implication of the common genetic variants in the susceptibility to cancer has already been demonstrated in several studies. One of the most non-coding RNAs studied in cancer are miRNAs and are known to be involved in the origin and evolution of various cancers. Therefore, we analyzed all the genetic vari-ability of the genes of the miRNAs processing path and their implication in the suscep-tibility of the OS. As a result, we decided to validate the association between the ge-netic variants previously associated with the risk to develop OS and to look for new risk markers in the genes related to the miRNAs. Our results indicated that a SNP in the CTLA4 gene could be a marker of susceptibility to develop OS along with the hotspot in the 14q32 region.
Osteosarkoma (OS) edo sarkoma osteogenikoa gazteen artean gertatzen den hezur-minbizirik ohikoena da. Adin hain goiztiarretan sortzeak adierazten du haren jatorrian genetikak paper garrantzitsua duela. Izan ere, hainbat ikerketa-lanen arabera, sarkortasun txikiko aldaera genetikoak (SNPak, esaterako) OSaren kausa izan ohi dira. Jakina da beste minbizi mota batzuetan aldaera genetikoek gaixotasun horrekiko suszeptibilitatean eragina izaten dutela. miRNAk dira minbizien jatorri eta bilakaeran gehien aztertu diren RNA ez-kodetzaileak (ncRNA). Hori dela eta, bai gune kodetzaileetan bai ez-kodetzaileetan (miRNAk eta hauek prozesatzen dituzten geneak) zen aldakortasun genetikoa aztertu genuen. Lan honetan, OSarekiko suszeptibilitatean eragina duten aldaera genetikoen bilaketa egin genuen. Gure emaitzek CTLA4 genea eta 14q32 guneko miRNA taldeak OSarekiko suszeptibilitatearen hotspot-ak izan daitezkeela erakusten dute.
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