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Nude mice have a spontaneous deletion in the FOXN1 gene. For these reasons, nude mice are less popular in research today. In addition, knockout mice with more complete defects in the immune system have been constructed (e.g. Most strains of nude mice are slightly "leaky" and do have a few T cells, especially as they age. Moreover, the absence of functioning T cells prevents nude mice from rejecting not only allografts (grafts of tissue from other mice) but also xenografts (grafts of tissue from another species). graft rejection (requires both CD4+ and CD8+ T cells)īecause of the above features, nude mice have served in the laboratory to gain insights into the immune system, leukemia, solid tumors, AIDS and other forms of immune deficiency as well as leprosy.killing of virus-infected or malignant cells (requires CD8+ cytotoxic T cells).delayed-type hypersensitivity responses (require CD4+ T cells).
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Lab mouse strain lacking immunity and fur A nude mouseĪ nude mouse is a laboratory mouse from a strain with a genetic mutation that causes a deteriorated or absent thymus, resulting in an inhibited immune system due to a greatly reduced number of T cells.