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

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Jaskoll, T. et al.

Mouse major histocompatibility complex and lung development: haplotype variation, H-2 immunolocalization, and progressive maturation.

The association of the mouse major histocompatibility complex ( H-2), lung maturation, and corticosteroid responsiveness has recently been demonstrated in congenic B10 (H-2b) and B10.A (H-2a) mice (Hu et al.: American Journal of Medical Genetics 35:126-131, 1990). We have investigated additional haplotypes [B10.BR (H-2k) and B10.D2 (H-2d)] to confirm that there is a strong association between H-2 haplotype variation and the degree of pulmonary maturation. Lungs of B10.D2, B10.BR, B10, and B10.A congenic mice achieve haplotypic specific maturation: B10.D2 lungs greater than B10 lungs = B10.BR lung greater than B10.A lungs. It appears that the expression of these developmental potentials is under corticosteroid regulation. Further, to test the hypothesis that H-2 antigens would be expressed earlier in embryonic lungs with the H-2b ( B10) or H-2k (B10.BR) haplotype than with the H-2a (B10.A) haplotype, we investigated the spatiotemporal patterns of H-2 antigen localization in B10, B10.BR, and B10.A congenic mouse strains with and without corticosteroid treatment. The spatial patterns of H-2 antigen localization was similar in the B10, B10.BR, and B10.A mouse lungs; however, these patterns appeared earlier in both untreated and treated B10 and B10.BR mice as compared with untreated B10.A mice, suggesting an H-2 haplotype associated rate of pulmonary maturation. Following corticosteroid treatment, all congenic strains had a temporally comparable spatial distribution of H-2 antigens. Our results provide preliminary evidence suggesting that both a lung "developmental gene(s)" and a "glucocorticoid responsiveness gene(s)" are most likely outside the K-D subregions of the H-2 complex. A model of the H-2 regulation of lung maturation and corticosteroid responsiveness is discussed.[1]

References

Mouse major histocompatibility complex and lung development: haplotype variation, H-2 immunolocalization, and progressive maturation. Jaskoll, T., Hu, C.C., Melnick, M. Am. J. Med. Genet. (1991) [Pubmed]

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