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  • Title: Renal Cell Carcinoma Associated With Xp11.2 Translocation/TFE3 Gene-fusion: A Long Response to mammalian target of rapamycin (mTOR) Inhibitors.
    Author: Rua Fernández OR, Escala Cornejo R, Navarro Martín M, García Muñoz M, Antunez Plaza P, García Dominguez AR, Cruz Hernández JJ.
    Journal: Urology; 2018 Jul; 117():41-43. PubMed ID: 29702156.
    Abstract:
    OBJECTIVE: To demonstrate that patients with Xp11.2/TFE3 gene-fusion translocation renal cell carcinoma (RCC), despite having an aggressive course in young adults, could have valid treatment options such as mammalian target of rapamycin (mTOR) inhibitors with good outcomes. Furthermore, to explain possible mechanisms of action of mTOR inhibitors in this type of RCC. MATERIALS AND METHODS: We report a case of a 44-year-old man who has been treated with everolimus for a Xp11.2 translocation/TFE3 gene-fusion RCC after 2 previous failed treatments with tyrosine kinase inhibitor. During the follow-up, we evaluated type and duration of response with everolimus. RESULTS: The patient obtained a long-lasting response of disease of 25 months with everolimus without any symptom. CONCLUSION: We believe that mTOR inhibitors could be a good line option treatment to consider for this type of patients.
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