8 documents found, page 1 of 1
THOR is a targetable epigenetic biomarker with clinical implications in breast ...
Apolónio, Joana; Dias, João S.; Fernandes, Mónica T.; Komosa, Martin; Lipman, Tatiana; Zhang, Cindy H.; Leão, Ricardo; Lee, Donghyun; Nunes, Nuno M.Breast cancer (BC) is the most frequently diagnosed cancer and a leading cause of death among women worldwide. Early BC is potentially curable, but the mortality rates still observed among BC patients demon‑ strate the urgent need of novel and more efective diagnostic and therapeutic options. Limitless self-renewal is a hallmark of cancer, governed by telomere maintenance. In around 95% of BC cases, this proces...
Facile preparation of mussel-inspired antibiotic-decorated titanium surfaces wi...
Lee, Jae Seo; Lee, Sang Jin; Yang, Seok Bin; Lee, Donghyun; Nah, Haram; Heo, Dong Nyoung; Moon, Ho-Jin; Hwang, Yu-Shik; Reis, R. L.; Moon, Ji-HoiTitanium implants (Ti) have been widely used in several medical fields. In clinical practice, Ti can become contaminated with bacteria through a variety of mechanisms. This contamination can lead to implant failure and serious infections. In this study, we aimed to develop a new, hybrid Ti with good biocompatibility and antibacterial properties by immobilizing ceftazidime (CFT) onto the Ti surface through polyd...
In vitro and in vivo assessments of an optimal polyblend composition of polycap...
Lee, Sang Jin; Kim, Han-Jun; Heo, Min; Lee, Hye-Rim; Choi, Eun-Ji; Kim, Hyosung; Lee, Donghyun; Reis, R. L.; Do, Sun Hee; Kwon, Il KeunIn this study, we manufactured various ratios of polycaprolactone (PCL)/gelatin (GE) highly aligned electrospun nanofibrous scaffolds (ENs) to investigate the effects of polymer ratio on tenogenic differentiation activity. For biological assessments, the cell proliferation rate was optimal in the PCL/GE (9:1) group. Interestingly, however, the tenogenic differentiation rate was best for the PCL/GE (7:3) group. ...
Combined genetic and epigenetic alterations of the TERT promoter affect clinica...
Leão, Ricardo; Lee, Donghyun; Figueiredo, Arnaldo; Hermanns, Thomas; Wild, Peter; Komosa, Martin; Lau, Irene; Mistry, Mathew; Nunes, Nuno MiguelIn 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...
Mechanisms of human telomerase reverse transcriptase (hTERT) regulation: clinic...
Leão, Ricardo; Apolónio, Joana Dias; Lee, Donghyun; Figueiredo, Arnaldo; Tabori, Uri; Castelo Branco, PedroBackground: Limitless self-renewal is one of the hallmarks of cancer and is attained by telomere maintenance, essentially through telomerase (hTERT) activation. Transcriptional regulation of hTERT is believed to play a major role in telomerase activation in human cancers. Main body: The dominant interest in telomerase results from its role in cancer. The role of telomeres and telomere maintenance mechanisms is ...
Mechanisms of human telomerase reverse transcriptase (hTERT) regulation: clinic...
Leão, Ricardo; Apolónio, Joana; Lee, Donghyun; Figueiredo, Arnaldo; Tabori, Uri; Castelo-Branco, PedroBackground Limitless self-renewal is one of the hallmarks of cancer and is attained by telomere maintenance, essentially through telomerase (hTERT) activation. Transcriptional regulation of hTERT is believed to play a major role in telomerase activation in human cancers. Main body The dominant interest in telomerase results from its role in cancer. The role of telomeres and telomere maintenance mechanisms is we...
A cancer specific hypermethylation signature of the TERT promoter predicts bioc...
Castelo Branco, Pedro; Leão, Ricardo; Lipman, Tatiana; Campbell, Brittany; Lee, Donghyun; Price, Aryeh; Zhang, Cindy; Heidari, Abolfazl; Stephens, DerekThe identification of new biomarkers to differentiate between indolent and aggressive prostate tumors is an important unmet need. We examined the role of THOR (TERT Hypermethylated Oncological Region) as a diagnostic and prognostic biomarker in prostate cancer (PCa).We analyzed THOR in common cancers using genome-wide methylation arrays. Methylation status of the whole TERT gene in benign and malignant prostate...
A cancer specific hypermethylation signature of the TERT promoter predicts bioc...
Castelo-Branco, Pedro; Leao, Ricardo; Lipman, Tatiana; Campbell, Brittany; Lee, Donghyun; Price, Aryeh; Zhang, Cindy; Heidari, Abolfazl; Stephens, DerekThe identification of new biomarkers to differentiate between indolent and aggressive prostate tumors is an important unmet need. We examined the role of THOR (TERT Hypermethylated Oncological Region) as a diagnostic and prognostic biomarker in prostate cancer (PCa).We analyzed THOR in common cancers using genome-wide methylation arrays. Methylation status of the whole TERT gene in benign and malignant prostate...