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008 220325b xxu||||| |||| 00| 0 eng d
040 _cH12O
041 _aeng
100 _92806
_aMartínez Fernández, Mónica
_eInstituto de Investigación i+12
100 _92807
_aDueñas, Marta
_eInstituto de Investigación i+12
100 _92996
_aSegovia, Cristina
_eInstituto de Investigación imas12
100 _92997
_aRubio, Carolina
_eInstituto de Investigación imas12
100 _93022
_aFernández, María
_eInstituto de Investigación imas12
100 _9485
_aVillacampa Aubá, Felipe
_eUrología
100 _91980
_aDuarte Ojeda, José Manuel
_eUrología
100 _92998
_aLópez Calderón, Fernando F
_eInstituto de Investigación imas12
100 _92810
_aGómez Rodríguez, María José
_eUrología
100 _9882
_aCastellano, Daniel
_eOncología Médica
100 _91795
_aRosa Kehrman, Federico de la
_eUrología
100 _91219
_aRodríguez Peralto, José Luis
_eAnatomía Patológica
100 _92814
_aParamio, Jesús M.
_eInstituto de Investigación i+12
245 0 0 _aAnalysis of the Polycomb-related lncRNAs HOTAIR and ANRIL in bladder cancer.
_h[artículo]
260 _bClinical epigenetics,
_c2015
300 _a7:109.
500 _aFormato Vancouver: Martínez Fernández M, Feber A, Dueñas M, Segovia C, Rubio C, Fernandez M et al. Analysis of the Polycomb-related lncRNAs HOTAIR and ANRIL in bladder cancer. Clin Epigenetics. 2015 Oct 8;7:109.
501 _aPMID: 26457124 PMC4599691
504 _aContiene 27 referencias
520 _aBackground: Long non-coding RNAs (lncRNAs) have been claimed as key molecular players in gene expression regulation, being involved in diverse epigenetic processes. They are aberrantly expressed in various tumors, but their exact role in bladder cancer is still obscure. We have recently found a major role of the Polycomb repression complex in recurrence of non-muscle-invasive bladder cancer. Here, we report the xpression of Polycomb-related lncRNAs:antisense noncoding RNA in the INK4 locus (ANRIL) and HOX antisense intergenic RNA (HOTAIR) in these tumors. Findings: We studied a dataset of non-invasive bladder cancer samples by quantitative reverse transcription PCR (RT-qPCR) and analyzed also invasive bladder cancer samples using TCGA data. Our results showed that, while ANRIL seemed not to have a determining role, an increased HOTAIR expression appeared in recurrent and high-graded tumors associated with poor prognosis. In addition, through genome-wide transcriptome analyses, we observed that HOTAIR-EZH2-complex-regulated genes can efficiently discriminate between non-tumoral, recurrent, and non-recurrent bladder cancer samples. We also observed a significant correlation between EZH2 and HOTAIR expression levels. Using overexpression, knockdown, and pharmacological approaches in bladder cancer cell lines, we also observed that EZH2 regulates HOTAIR expression. Conclusions: Our findings indicate that HOTAIR expression has prognostic value for bladder cancer progression, recurrence, and survival and suggest that HOTAIR plays active roles in modulating the cancer epigenome, becoming an interesting candidate as a target for cancer diagnosis and therapy. The observed HOTAIR regulation by EZH2 and the possibility of modulating EZH2 activity with specific inhibitors open new possible paths to be explored in bladder cancer therapy.
710 _9625
_aInstituto de Investigación imas12
710 _9330
_aServicio de Anatomía Patológica
710 _9303
_aServicio de Oncología Médica
710 _9220
_aServicio de Urología
856 _uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC4599691/
_yAcceso libre
942 _2ddc
_cART
_n0