نتایج جستجو برای: dapk gene

تعداد نتایج: 1141463  

2013
Lu-Ting Kuo Shao-Yu Tsai Cheng-Chi Chang Kuang-Ting Kuo Abel Po-Hao Huang Jui-Chang Tsai Ham-Min Tseng Meng-Fai Kuo Yong-Kwang Tu

The aim of the present study was to identify genetic and epigenetic alterations involved in the progression of oligodendroglial tumors. We characterized 21 paired, World Health Organization (WHO) grade II and III oligodendroglial tumors from patients who received craniotomies for the partial or complete resection of primary and secondary oligodendroglial tumors. Tumor DNA was analyzed for alter...

Journal: :Clinical cancer research : an official journal of the American Association for Cancer Research 2003
Carme Balaña Jose Luis Ramirez Miquel Taron Yannis Roussos Aurelio Ariza Rosa Ballester Carme Sarries Pedro Mendez Jose Javier Sanchez Rafael Rosell

PURPOSE In glioblastoma multiforme (GBM), the cytotoxic effect of 1,3-bis(2-chloroethyl)-1-nitrosourea (BCNU) and temozolamide is dependent on O(6) alkylation, which correlates inversely with expression of the DNA repair enzyme O(6)-methyl-guanine-DNA methyltransferase (MGMT). Thus, MGMT assessment can be useful in predicting response in GBM, but the scarcity of neoplastic cells limits the prac...

2015
Javed Hussain Choudhury Sankar Kumar Ghosh Dajun Deng

BACKGROUND Epigenetic and genetic alteration plays a major role to the development of head and neck squamous cell carcinoma (HNSCC). Consumption of tobacco (smoking/chewing) and human papilloma virus (HPV) are also associated with an increase the risk of HNSCC. Promoter hypermethylation of the tumor suppression genes is related with transcriptional inactivation and loss of gene expression. We i...

2012
Wenyue Sun David Zaboli Hao Wang Yan Liu Demetri Arnaoutakis Tanbir Khan Zubair Khan Wayne M. Koch Joseph A. Califano

Purpose: To validate a panel ofmethylation-based salivary rinse biomarkers (P16,CCNA1,DCC, TIMP3, MGMT, DAPK, and MINT31) previously shown to be independently associated with poor overall survival and local recurrence in a larger, separate cohort of patients with head and neck squamous cell carcinoma

Journal: :Investigative ophthalmology & visual science 2007
Efrat Merhavi Yoram Cohen Bat Chen R Avraham Shahar Frenkel Itay Chowers Jacob Pe'er Nitza Goldenberg-Cohen

PURPOSE Aberrant promoter hypermethylation of CpG islands is thought to play an important role in the inactivation of tumor-suppressor genes (TSGs) in cancer. Studies of cutaneous melanoma have reported a high methylation rate for MGMT, DAPK, RAR-b2, and RASSF1A. In colon cancer, SOCS-1, IGF-2, RUNX3, NEUROG1, and CACNA1G are commonly inactivated. The concomitant methylation of at least three o...

Journal: :Roczniki Akademii Medycznej w Bialymstoku 2003
J L Ramirez M Taron C Balaña C Sarries P Mendez I de Aguirre L Nuñez B Roig C Queralt M Botia R Rosell

PURPOSE Genetic analysis has shown that cell-free circulating DNA in plasma or serum of cancer patients shares similar genetic alterations to those described in the corresponding tumor. One of the most important alterations involved in carcinogenesis is aberrant promoter methylation. The interest in this field has grown due to the implementation of the methylation-specific PCR (MSP) assay. The ...

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