Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

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Nose, M. et al.

Nose, Terada, Nishihara, Kamogawa, Miyazaki, Qu, Mori, Nakatsuru,

Genome analysis of collagen disease in MRL/lpr mice: polygenic inheritance resulting in the complex pathological manifestations.

MRL/MpJ-lpr/lpr (MRL/lpr) mice develop collagen disease involving vasculitis, glomerulonephritis, arthritis and sialoadenitis, each of which has been studied as a model for polyarteritis, lupus nephritis, rheumatoid arthritis and SjÃ¶gren's syndrome, respectively. In the previous studies, we observed genetic segregation of these complex pathological manifestations throughout the genome recombination with a C57Bl/6-lpr/lpr or a C3H/HeJ-lpr/lpr (C3H/lpr) strain of mice which rarely develops such lesions, indicating that development of collagen disease is dependent on an MRL host genetic background. To clarify the mode of inheritance and the gene loci affecting four types of the lesions in MRL/lpr mice; vasculitis, glomerulonephritis, arthritis and sialoadenitis, a genetic dissection of the lesions was carried out by using MRL/lpr, C3H/lpr, (MRL/lprxC3H/lpr) F1 intercross, and MRL/lprx(MRL/lprxC3H/lpr) F1 backcross mice. Definition of each lesion was performed by histopathology under light microscopy, and genomic DNA of the backcross mice were subjected to association studies by chi-square analysis for determining which polymorphic microsatellite locus occurs at higher frequency among affected compared to unaffected individuals for each lesion. We observed that gene loci recessively associated with each lesion were mapped on different chromosomal positions. We conclude that each of four types of the lesions in MRL/lpr mice is under the control of different set of genes, suggesting the complex pathological manifestations of collagen disease result from polygenic inheritance.[1]

References

Genome analysis of collagen disease in MRL/lpr mice: polygenic inheritance resulting in the complex pathological manifestations. Nose, M., Terada, M., Nishihara, M., Kamogawa, J., Miyazaki, T., Qu, W., Mori, S., Nakatsuru, S. International journal of cardiology. (2000) [Pubmed]

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