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isogenic human disease models
Isogenic human disease models are a family of cells that are selected or engineered to accurately model the genetics of a specific patient population, ''in vitro''. They are provided with a genetically matched ‘normal cell’ to provide an isogenic system to research disease biology and novel therapeutic agents. They can be used to model any disease with a genetic foundation. Cancer is one such disease for which isogenic human disease models have been widely used.
==Historical models==
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.
Historically, cells obtained from animals, typically mice, have been used to model cancer related pathways. However, there are obvious limitations inherent in using animals for modelling genetically determined diseases in humans. Despite a large proportion of genetic conservation between humans and mice, there are significant differences between the biology of mice and humans that are important to cancer research. For example, major differences in telomere regulation enable murine cells to bypass the requirement for telomerase upregulation, which is a rate-limiting step in human cancer formation. As another example, certain ligand-receptor interactions are incompatible between mice and humans. Additionally, experiments have demonstrated important and significant differences in the ability to transform cells, compared with cells of murine origin. For these reasons, it remains essential to develop models of cancer that employ human cells.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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