<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Moura, David S</style></author><author><style face="normal" font="default" size="100%">Mondaza-Hernandez, Jose L</style></author><author><style face="normal" font="default" size="100%">Sanchez-Bustos, Paloma</style></author><author><style face="normal" font="default" size="100%">Peña-Chilet, Maria</style></author><author><style face="normal" font="default" size="100%">Cordero-Varela, Juan A</style></author><author><style face="normal" font="default" size="100%">Lopez-Alvarez, Maria</style></author><author><style face="normal" font="default" size="100%">Carrillo-Garcia, Jaime</style></author><author><style face="normal" font="default" size="100%">Martin-Ruiz, Marta</style></author><author><style face="normal" font="default" size="100%">Romero-Gonzalez, Pablo</style></author><author><style face="normal" font="default" size="100%">Renshaw-Calderon, Marta</style></author><author><style face="normal" font="default" size="100%">Ramos, Rafael</style></author><author><style face="normal" font="default" size="100%">Marcilla, David</style></author><author><style face="normal" font="default" size="100%">Alvarez-Alegret, Ramiro</style></author><author><style face="normal" font="default" size="100%">Agra-Pujol, Carolina</style></author><author><style face="normal" font="default" size="100%">Izquierdo, Francisco</style></author><author><style face="normal" font="default" size="100%">Ortega-Medina, Luis</style></author><author><style face="normal" font="default" size="100%">Martin-Davila, Francisco</style></author><author><style face="normal" font="default" size="100%">Hernandez-Leon, Carmen Nieves</style></author><author><style face="normal" font="default" size="100%">Romagosa, Cleofe</style></author><author><style face="normal" font="default" size="100%">Salgado, Maria Angeles Vaz</style></author><author><style face="normal" font="default" size="100%">Lavernia, Javier</style></author><author><style face="normal" font="default" size="100%">Bagué, Silvia</style></author><author><style face="normal" font="default" size="100%">Mayodormo-Aranda, Empar</style></author><author><style face="normal" font="default" size="100%">Alvarez, Rosa</style></author><author><style face="normal" font="default" size="100%">Valverde, Claudia</style></author><author><style face="normal" font="default" size="100%">Martinez-Trufero, Javier</style></author><author><style face="normal" font="default" size="100%">Castilla-Ramirez, Carolina</style></author><author><style face="normal" font="default" size="100%">Gutierrez, Antonio</style></author><author><style face="normal" font="default" size="100%">Dopazo, Joaquin</style></author><author><style face="normal" font="default" size="100%">Hindi, Nadia</style></author><author><style face="normal" font="default" size="100%">Garcia-Foncillas, Jesus</style></author><author><style face="normal" font="default" size="100%">Martin-Broto, Javier</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">HMGA1 regulates trabectedin sensitivity in advanced soft-tissue sarcoma (STS): A Spanish Group for Research on Sarcomas (GEIS) study.</style></title><secondary-title><style face="normal" font="default" size="100%">Cell Mol Life Sci</style></secondary-title><alt-title><style face="normal" font="default" size="100%">Cell Mol Life Sci</style></alt-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Animals</style></keyword><keyword><style  face="normal" font="default" size="100%">Antineoplastic Agents, Alkylating</style></keyword><keyword><style  face="normal" font="default" size="100%">Cell Line, Tumor</style></keyword><keyword><style  face="normal" font="default" size="100%">Drug Resistance, Neoplasm</style></keyword><keyword><style  face="normal" font="default" size="100%">Female</style></keyword><keyword><style  face="normal" font="default" size="100%">Gene Expression Regulation, Neoplastic</style></keyword><keyword><style  face="normal" font="default" size="100%">HMGA1a Protein</style></keyword><keyword><style  face="normal" font="default" size="100%">Humans</style></keyword><keyword><style  face="normal" font="default" size="100%">Leiomyosarcoma</style></keyword><keyword><style  face="normal" font="default" size="100%">Mice</style></keyword><keyword><style  face="normal" font="default" size="100%">Prognosis</style></keyword><keyword><style  face="normal" font="default" size="100%">Sarcoma</style></keyword><keyword><style  face="normal" font="default" size="100%">Signal Transduction</style></keyword><keyword><style  face="normal" font="default" size="100%">TOR Serine-Threonine Kinases</style></keyword><keyword><style  face="normal" font="default" size="100%">Trabectedin</style></keyword><keyword><style  face="normal" font="default" size="100%">Xenograft Model Antitumor Assays</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2024</style></year><pub-dates><date><style  face="normal" font="default" size="100%">2024 May 17</style></date></pub-dates></dates><volume><style face="normal" font="default" size="100%">81</style></volume><pages><style face="normal" font="default" size="100%">219</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;HMGA1 is a structural epigenetic chromatin factor that has been associated with tumor progression and drug resistance. Here, we reported the prognostic/predictive value of HMGA1 for trabectedin in advanced soft-tissue sarcoma (STS) and the effect of inhibiting HMGA1 or the mTOR downstream pathway in trabectedin activity. The prognostic/predictive value of HMGA1 expression was assessed in a cohort of 301 STS patients at mRNA (n = 133) and protein level (n = 272), by HTG EdgeSeq transcriptomics and immunohistochemistry, respectively. The effect of HMGA1 silencing on trabectedin activity and gene expression profiling was measured in leiomyosarcoma cells. The effect of combining mTOR inhibitors with trabectedin was assessed on cell viability in vitro studies, whereas in vivo studies tested the activity of this combination. HMGA1 mRNA and protein expression were significantly associated with worse progression-free survival of trabectedin and worse overall survival in STS. HMGA1 silencing sensitized leiomyosarcoma cells for trabectedin treatment, reducing the spheroid area and increasing cell death. The downregulation of HGMA1 significantly decreased the enrichment of some specific gene sets, including the PI3K/AKT/mTOR pathway. The inhibition of mTOR, sensitized leiomyosarcoma cultures for trabectedin treatment, increasing cell death. In in vivo studies, the combination of rapamycin with trabectedin downregulated HMGA1 expression and stabilized tumor growth of 3-methylcholantrene-induced sarcoma-like models. HMGA1 is an adverse prognostic factor for trabectedin treatment in advanced STS. HMGA1 silencing increases trabectedin efficacy, in part by modulating the mTOR signaling pathway. Trabectedin plus mTOR inhibitors are active in preclinical models of sarcoma, downregulating HMGA1 expression levels and stabilizing tumor growth.&lt;/p&gt;</style></abstract><issue><style face="normal" font="default" size="100%">1</style></issue></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Moura, David S</style></author><author><style face="normal" font="default" size="100%">López López, Daniel</style></author><author><style face="normal" font="default" size="100%">di Lernia, Davide</style></author><author><style face="normal" font="default" size="100%">Martin-Ruiz, Marta</style></author><author><style face="normal" font="default" size="100%">Lopez-Alvarez, Maria</style></author><author><style face="normal" font="default" size="100%">Ramos, Rafael</style></author><author><style face="normal" font="default" size="100%">Merino, Jose</style></author><author><style face="normal" font="default" size="100%">Dopazo, Joaquin</style></author><author><style face="normal" font="default" size="100%">Lopez-Guerrero, Jose</style></author><author><style face="normal" font="default" size="100%">Mondaza-Hernandez, Jose L</style></author><author><style face="normal" font="default" size="100%">Romero, Pablo</style></author><author><style face="normal" font="default" size="100%">Hindi, Nadia</style></author><author><style face="normal" font="default" size="100%">Garcia-Foncillas, Jesus</style></author><author><style face="normal" font="default" size="100%">Martin-Broto, Javier</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Shared germline genomic variants in two patients with double primary gastrointestinal stromal tumours (GISTs).</style></title><secondary-title><style face="normal" font="default" size="100%">J Med Genet</style></secondary-title><alt-title><style face="normal" font="default" size="100%">J Med Genet</style></alt-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">DNA Copy Number Variations</style></keyword><keyword><style  face="normal" font="default" size="100%">Female</style></keyword><keyword><style  face="normal" font="default" size="100%">Gastrointestinal Neoplasms</style></keyword><keyword><style  face="normal" font="default" size="100%">Gastrointestinal Stromal Tumors</style></keyword><keyword><style  face="normal" font="default" size="100%">Genetic Predisposition to Disease</style></keyword><keyword><style  face="normal" font="default" size="100%">Germ-Line Mutation</style></keyword><keyword><style  face="normal" font="default" size="100%">Humans</style></keyword><keyword><style  face="normal" font="default" size="100%">Male</style></keyword><keyword><style  face="normal" font="default" size="100%">Middle Aged</style></keyword><keyword><style  face="normal" font="default" size="100%">Polymorphism, Single Nucleotide</style></keyword><keyword><style  face="normal" font="default" size="100%">Proto-Oncogene Proteins c-kit</style></keyword><keyword><style  face="normal" font="default" size="100%">Receptor, Platelet-Derived Growth Factor alpha</style></keyword><keyword><style  face="normal" font="default" size="100%">Whole Genome Sequencing</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2024</style></year><pub-dates><date><style  face="normal" font="default" size="100%">2024 Sep 24</style></date></pub-dates></dates><volume><style face="normal" font="default" size="100%">61</style></volume><pages><style face="normal" font="default" size="100%">927-934</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;&lt;b&gt;BACKGROUND: &lt;/b&gt;Gastrointestinal stromal tumours (GISTs) are prevalent mesenchymal tumours of the gastrointestinal tract, commonly exhibiting structural variations in  and  genes. While the mutational profiling of somatic tumours is well described, the genes behind the susceptibility to develop GIST are not yet fully discovered. This study explores the genomic landscape of two primary GIST cases, aiming to identify shared germline pathogenic variants and shed light on potential key players in tumourigenesis.&lt;/p&gt;&lt;p&gt;&lt;b&gt;METHODS: &lt;/b&gt;Two patients with distinct genotypically and phenotypically GISTs underwent germline whole genome sequencing. CNV and single nucleotide variant (SNV) analyses were performed.&lt;/p&gt;&lt;p&gt;&lt;b&gt;RESULTS: &lt;/b&gt;Both patients harbouring low-risk GISTs with different mutations ( and ) shared homozygous germline pathogenic deletions in both  and  genes. CNV analysis revealed additional shared pathogenic deletions in other genes such as . No particular pathogenic SNV shared by both patients was detected.&lt;/p&gt;&lt;p&gt;&lt;b&gt;CONCLUSION: &lt;/b&gt;Our study provides new insights into germline variants that can be associated with the development of GISTs, namely,  and  deep deletions. Further functional validation is warranted to elucidate the precise contributions of identified germline mutations in GIST development.&lt;/p&gt;</style></abstract><issue><style face="normal" font="default" size="100%">10</style></issue></record></records></xml>