Search results
Results from the WOW.Com Content Network
Human isogenic disease models have been likened to 'patients in a test-tube', since they incorporate the latest research into human genetic diseases and do so without the difficulties and limitations involved in using non-human models. [2] Historically, cells obtained from animals, typically mice, have been used to model cancer-related pathways.
In 2018, a TWAS was used to identify candidate causal genes for breast cancer. Data was collected from The Cancer Genome Atlas to establish genetic models as well as 229,000 women of European ancestry. In this study, 8,597 genes were evaluated. Through GWAS studies, around 170 loci were associated with at least one variant of breast cancer.
The laboratory mouse has been instrumental in investigating the genetics of human disease, including cancer, for over 110 years. [1] The laboratory mouse has physiology and genetic characteristics very similar to humans providing powerful models for investigation of the genetic characteristics of disease. [2]
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.
Genetic studies of common diseases in humans suffer significant limitations for practical and ethical reasons. [22] Human cell lines can be used to model disease but it is difficult to study processes at the tissue level, within an organ or across the entire body. Mice can be a good representation of diseases in humans because:.
Under this model, cancer arises as the result of a single, isolated event, rather than the slow accumulation of multiple mutations. [4] The exact function of some tumor suppressor genes is not currently known (e.g. MEN1, WT1), [5] but based on these genes following the Knudson "two-hit" hypothesis, they are strongly presumed to be suppressor genes.
The first report of cancer genome sequencing appeared in 2006. In this study 13,023 genes were sequenced in 11 breast and 11 colorectal tumors. [3] A subsequent follow up was published in 2007 where the same group added just over 5,000 more genes and almost 8,000 transcript species to complete the exomes of 11 breast and colorectal tumors. [4]
In 1974, the Center for Cancer Research was founded by 1969 Nobel laureate Salvador Luria to study basic biological processes related to cancer. The center researches the genetic and molecular basis of cancer, how alterations in cellular processes affect cell growth and behavior, and how the immune system develops and recognizes antigens. [7]