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This gives a wider and more global view of cancer genetics, while these data are usually dispersed. [3] It includes a large iconography of about 35,000 images. Dan van Dyke said "This is one stop shopping that unifies cancer genetics information", and Lidia Larizza said that the Atlas was an "interdisciplinary resource".
The tumor suppressing BRCA genes frequently help in cancer prevention. They control how cells divide and develop and help repair DNA damage BRCA gene abnormalities, however, can the likelihood of having specific cancers is raised. Cancers BRCA1 and BRCA2 are the two BRCA recognized cancer-causing gene alterations.
Oncogenomics is a sub-field of genomics that characterizes cancer-associated genes.It focuses on genomic, epigenomic and transcript alterations in cancer. Cancer is a genetic disease caused by accumulation of DNA mutations and epigenetic alterations leading to unrestrained cell proliferation and neoplasm formation.
Cancer prevention is the practice of taking active measures to decrease the incidence of cancer and mortality. [ 1 ] [ 2 ] The practice of prevention depends on both individual efforts to improve lifestyle and seek preventive screening , and socioeconomic or public policy related to cancer prevention. [ 3 ]
Public policy has protected people against genetic discrimination, defined in Taber's Cyclopedic Medical Dictionary (2001) as unequal treatment of persons with either known genetic abnormalities or the inherited propensity for disease; genetic discrimination may have a negative effect on employability, insurability and other socio-economic variables.
Medical genetics is the branch of medicine that involves the diagnosis and management of hereditary disorders.Medical genetics differs from human genetics in that human genetics is a field of scientific research that may or may not apply to medicine, while medical genetics refers to the application of genetics to medical care.
The Cancer Genome Atlas (TCGA) is a project to catalogue the genomic alterations responsible for cancer using genome sequencing and bioinformatics. [1] [2] The overarching goal was to apply high-throughput genome analysis techniques to improve the ability to diagnose, treat, and prevent cancer through a better understanding of the genetic basis of the disease.
Replication of DNA in such cells leads to mutations and these mutations may cause cancer. Thus BRCA1 appears to have two roles related to the prevention of cancer, where one role is to promote repair of a specific class of damages and the second role is to induce apoptosis if the level of such DNA damage is beyond the cell's repair capability [69]