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Combined genetic and epigenetic alterations of the TERT promoter affect clinical and biological behavior of bladder cancer.
Leão, Ricardo; Lee, Donghyun; Figueiredo, Arnaldo; Hermanns, Thomas; Wild, Peter; Komosa, Martin; Lau, Irene; Mistry, Mathew; Nunes, Nuno Miguel; Price, Aryeh J; Zhang, Cindy; Lipman, Tatiana; Poyet, Cédric; Valtcheva, Nadejda; Oehl, Kathrin; Coelho, Hugo; Sayyid, Rashid; Gomes, Ana Melo; Prado E Castro, Ligia; Sweet, Joan; Vinagre, João; Apolónio, Joana; Stephens, Derek; Faleiro, Inês; Fadaak, Kamel; Richard, Patrick O; Kulkarni, Girish; Zlotta, Alexandre R; Hamilton, Robert J; Castelo-Branco, Pedro; Tabori, Uri.
Afiliação
  • Leão R; Division of Urology, Department of Surgery, University of Toronto, Toronto, ON, Canada.
  • Lee D; Arthur and Sonia Labatt Brain Tumor Research Center, The Hospital for Sick Children, University of Toronto, Toronto, ON, Canada.
  • Figueiredo A; Faculty of Medicine, University of Coimbra, Coimbra, Portugal.
  • Hermanns T; Department of Urology, Coimbra University Hospital, Coimbra, Portugal.
  • Wild P; Arthur and Sonia Labatt Brain Tumor Research Center, The Hospital for Sick Children, University of Toronto, Toronto, ON, Canada.
  • Komosa M; Faculty of Medicine, University of Coimbra, Coimbra, Portugal.
  • Lau I; Department of Urology, Coimbra University Hospital, Coimbra, Portugal.
  • Mistry M; Department of Urology, University Hospital Zürich, University of Zürich, Zürich, Switzerland.
  • Nunes NM; Institute of Pathology and Molecular Pathology, University Hospital Zürich, University of Zürich, Zürich, Switzerland.
  • Price AJ; Arthur and Sonia Labatt Brain Tumor Research Center, The Hospital for Sick Children, University of Toronto, Toronto, ON, Canada.
  • Zhang C; Arthur and Sonia Labatt Brain Tumor Research Center, The Hospital for Sick Children, University of Toronto, Toronto, ON, Canada.
  • Lipman T; Arthur and Sonia Labatt Brain Tumor Research Center, The Hospital for Sick Children, University of Toronto, Toronto, ON, Canada.
  • Poyet C; Arthur and Sonia Labatt Brain Tumor Research Center, The Hospital for Sick Children, University of Toronto, Toronto, ON, Canada.
  • Valtcheva N; Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA.
  • Oehl K; Arthur and Sonia Labatt Brain Tumor Research Center, The Hospital for Sick Children, University of Toronto, Toronto, ON, Canada.
  • Coelho H; Arthur and Sonia Labatt Brain Tumor Research Center, The Hospital for Sick Children, University of Toronto, Toronto, ON, Canada.
  • Sayyid R; Department of Urology, University Hospital Zürich, University of Zürich, Zürich, Switzerland.
  • Gomes AM; Institute of Pathology and Molecular Pathology, University Hospital Zürich, University of Zürich, Zürich, Switzerland.
  • Prado E Castro L; Institute of Pathology and Molecular Pathology, University Hospital Zürich, University of Zürich, Zürich, Switzerland.
  • Sweet J; Department of Urology, Coimbra University Hospital, Coimbra, Portugal.
  • Vinagre J; Division of Urology, Department of Surgery, University of Toronto, Toronto, ON, Canada.
  • Apolónio J; Department of Pathology, Coimbra University Hospital, Coimbra, Portugal.
  • Stephens D; Department of Pathology, Coimbra University Hospital, Coimbra, Portugal.
  • Faleiro I; Department of Pathology, University Health Network, Toronto, ON, Canada.
  • Fadaak K; Institute for Research and Innovation in Health, (I3S), Institute of Molecular Pathology and Immunology of the University of Porto (Ipatimup), Porto, Portugal.
  • Richard PO; Department of Biomedical Sciences and Medicine, University of Algarve, Faro, Portugal.
  • Kulkarni G; Centre for Biomedical Research (CBMR), University of Algarve, Faro, Portugal.
  • Zlotta AR; Algarve Biomedical Center, Faro, Portugal.
  • Hamilton RJ; Biostatistics, Design and Analysis, The Hospital for Sick Children, Toronto, ON, Canada.
  • Castelo-Branco P; Department of Biomedical Sciences and Medicine, University of Algarve, Faro, Portugal.
  • Tabori U; Centre for Biomedical Research (CBMR), University of Algarve, Faro, Portugal.
Int J Cancer ; 144(7): 1676-1684, 2019 04 01.
Article em En | MEDLINE | ID: mdl-30350309
ABSTRACT
In urothelial bladder cancer (UBC), risk stratification remains an important unmet need. Limitless self-renewal, governed by TERT expression and telomerase activation, is crucial for cancer progression. Thus, telomerase activation through the interplay of mutations (TERTpMut ) and epigenetic alterations in the TERT promoter may provide further insight into UBC behavior. Here, we investigated the combined effect of TERTpMut and the TERT Hypermethylated Oncological Region (THOR) status on telomerase activation and patient outcome in a UBC international cohort (n = 237). We verified that TERTpMut were frequent (76.8%) and present in all stages and grades of UBC. Hypermethylation of THOR was associated with higher TERT expression and higher-risk disease in nonmuscle invasive bladder cancers (NMIBC). TERTpMut alone predicted disease recurrence (HR 3.18, 95%CI 1.84 to 5.51, p < 0.0001) but not progression in NMIBC. Combined THORhigh /TERTpMut increased the risk of disease recurrence (HR 5.12, p < 0.0001) and progression (HR 3.92, p = 0.025). Increased THOR hypermethylation doubled the risk of stage progression of both TERTpwt and TERTpMut NMIBC. These results highlight that both mechanisms are common and coexist in bladder cancer and while TERTpMut is an early event in bladder carcinogenesis THOR hypermethylation is a dynamic process that contributes to disease progression. While the absence of alterations comprises an extremely indolent phenotype, the combined genetic and epigenetic alterations of TERT bring additional prognostic value in NMIBC and provide a novel insight into telomere biology in cancer.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Neoplasias da Bexiga Urinária / Telomerase / Metilação de DNA / Mutação Tipo de estudo: Prognostic_studies Limite: Female / Humans / Male Idioma: En Revista: Int J Cancer Ano de publicação: 2019 Tipo de documento: Article País de afiliação: Canadá
Texto completo
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Neoplasias da Bexiga Urinária / Telomerase / Metilação de DNA / Mutação Tipo de estudo: Prognostic_studies Limite: Female / Humans / Male Idioma: En Revista: Int J Cancer Ano de publicação: 2019 Tipo de documento: Article País de afiliação: Canadá