Please wait, while we are loading the content...
Please wait, while we are loading the content...
| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Zhang, Q. H. Dai, X. H. Cai, Y. N. Dai, Z. M. |
| Description | Country affiliation: China Author Affiliation: Zhang QH ( School of Information Science and Technology, Sun Yat-Sen University, Higher Education Mega Center, Guangzhou, China.); Dai XH ( SYSU-CMU Shunde International Joint Research Institute, Shunde, Guangdong, China.); Dai ZM ( SYSU-CMU Shunde International Joint Research Institute, Shunde, Guangdong, China.); Cai YN ( SYSU-CMU Shunde International Joint Research Institute, Shunde, Guangdong, China.) |
| Abstract | Identification of epigenetic alterations in tumors has become a common method for identifying genes critical to cancer development and progression. Thus, we identified DNA methylation alterations on the genome scale during lung adenocarcinoma (LADC) progression to understand the carcinogenic process and identify clinically relevant biomarkers. We found that epigenetic alterations in LADC mainly occur during the early stage of LADC progression, and there are no significant methylation differences between early-stage and late-stage LADCs. This suggests that DNA methylation alterations characterize a turning point of early events in LADC progression. By comparing DNA methylation between early-stage LADCs and normal lung tissues, we further identified 940 genes with significant alterations in DNA methylation. Sixty-seven genes were found to exhibit strong correlation between methylation alterations and expression changes, based on associated gene expression data. According to gene ontology analysis, these genes are involved in lung development, respiratory system development, cell cycle, histidine metabolism, the Wnt signaling pathway, and the p53 signaling pathway. We also found that genes on chromosome 18 most frequently showed promoter hypermethylation. Moreover, we found that LADC-associated DNA hypomethylation occurred preferentially at neither histone H3 lysine 4 nor histone H3 lysine 27 mark domains in human embryonic stem cells (NMDs) and that hypomethylation of NMDs was associated with a poor prognostic signature in LADC. Our findings have important implications for LADC progression because of the identification of novel epigenetic biomarkers potentially involved in early-stage LADC and for establishing the importance of NMD DNA hypomethylation for predicting prognosis in LADC. |
| e-ISSN | 16765680 |
| Journal | Genetics and Molecular Research |
| Issue Number | 3 |
| Volume Number | 14 |
| Language | English |
| Publisher | Fundação de Pesquisas Científicas de Ribeirão Preto |
| Publisher Date | 2015-08-07 |
| Publisher Place | Brazil |
| Access Restriction | Open |
| Subject Keyword | Adenocarcinoma Genetics Pathology Dna Methylation Genome-wide Association Study Lung Neoplasms Mortality Tumor Markers, Biological Cluster Analysis Computational Biology Cpg Islands Disease Progression Embryonic Stem Cells Metabolism Epigenesis, Genetic Gene Expression Profiling Gene Expression Regulation, Neoplastic Histones Neoplasm Staging Nucleotide Motifs Position-specific Scoring Matrices Prognosis Promoter Regions, Genetic Research Support, Non-u.s. Gov't Discipline Genetics Discipline Molecular Biology Discipline Bioinformatics |
| Content Type | Text |
| Resource Type | Article |
National Digital Library of India (NDLI) is a virtual repository of learning resources which is not just a repository with search/browse facilities but provides a host of services for the learner community. It is sponsored and mentored by Ministry of Education, Government of India, through its National Mission on Education through Information and Communication Technology (NMEICT). Filtered and federated searching is employed to facilitate focused searching so that learners can find the right resource with least effort and in minimum time. NDLI provides user group-specific services such as Examination Preparatory for School and College students and job aspirants. Services for Researchers and general learners are also provided. NDLI is designed to hold content of any language and provides interface support for 10 most widely used Indian languages. It is built to provide support for all academic levels including researchers and life-long learners, all disciplines, all popular forms of access devices and differently-abled learners. It is designed to enable people to learn and prepare from best practices from all over the world and to facilitate researchers to perform inter-linked exploration from multiple sources. It is developed, operated and maintained from Indian Institute of Technology Kharagpur.
Learn more about this project from here.
NDLI is a conglomeration of freely available or institutionally contributed or donated or publisher managed contents. Almost all these contents are hosted and accessed from respective sources. The responsibility for authenticity, relevance, completeness, accuracy, reliability and suitability of these contents rests with the respective organization and NDLI has no responsibility or liability for these. Every effort is made to keep the NDLI portal up and running smoothly unless there are some unavoidable technical issues.
Ministry of Education, through its National Mission on Education through Information and Communication Technology (NMEICT), has sponsored and funded the National Digital Library of India (NDLI) project.
| Sl. | Authority | Responsibilities | Communication Details |
|---|---|---|---|
| 1 | Ministry of Education (GoI), Department of Higher Education |
Sanctioning Authority | https://www.education.gov.in/ict-initiatives |
| 2 | Indian Institute of Technology Kharagpur | Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project | https://www.iitkgp.ac.in |
| 3 | National Digital Library of India Office, Indian Institute of Technology Kharagpur | The administrative and infrastructural headquarters of the project | Dr. B. Sutradhar bsutra@ndl.gov.in |
| 4 | Project PI / Joint PI | Principal Investigator and Joint Principal Investigators of the project |
Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon |
| 5 | Website/Portal (Helpdesk) | Queries regarding NDLI and its services | support@ndl.gov.in |
| 6 | Contents and Copyright Issues | Queries related to content curation and copyright issues | content@ndl.gov.in |
| 7 | National Digital Library of India Club (NDLI Club) | Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach | clubsupport@ndl.gov.in |
| 8 | Digital Preservation Centre (DPC) | Assistance with digitizing and archiving copyright-free printed books | dpc@ndl.gov.in |
| 9 | IDR Setup or Support | Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops | idr@ndl.gov.in |
|
Loading...
|