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  • 1
    ISSN: 1432-1211
    Keywords: Key words Compatibility ; HLA ; Systemic sclerosis ; Susceptibility ; Fetal-maternal
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract  Systemic sclerosis (SSc) is a disease of unknown origin, which occurs predominantly in women after childbearing years. There are prominent clinical and histopathologic similarities between SSc and chronic graft-versus-host disease (GVHD). GVHD can occur after blood transfusions or after transplantation with HLA-compatible bone marrow. Here we examined the hypothesis that SSc may be caused by fetal cells crossing the placenta into the maternal circulation and providing donor lymphocytes which recognize disparate HLA antigens, resulting in a reaction similar to chronic GVHD. To test the hypothesis we analyzed the inheritance of HLA class I and class II haplotypes in the families of 37 SSc patients and 42 control individuals. Twenty-six (70.2%) SSc patients had HLA class II alleles compatible either for their offspring or mother, compared with only nine (21%) control individuals. The four patients with juvenile onset SSc we analyzed had alleles compatible with their mothers. These results suggest that in some patients, SSc may, indeed, be a form of chronic GVHD caused by fetal or maternal cells which have crossed the placenta during pregnancy and have remained unrecognized by the host due to class II HLA compatibility, and that subsequent activation of these cells by as yet unknown stimuli result in the development of the disease.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Annals of the New York Academy of Sciences 460 (1985), S. 0 
    ISSN: 1749-6632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Natural Sciences in General
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1432-1777
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract The fibrillin genes, FBN1 and FBN2, encode large extracellular matrix glycoproteins involved in the structure and function of microfibrils. Mutations in FBN1 are found in patients with Marfan syndrome, a heritable connective tissue disease that primarily affects the cardiovascular, ocular, and skeletal systems. We extended the studies of these genes by determining their chromosomal position in the mouse genome. Restriction fragment length polymorphisms (RFLPs) between the progenitors of an interspecific backcross involving AEJ/Gn and Mus spretus mice were used to establish the segregation patterns of the murine homologs, Fbn1 and Fbn2, in the backcross progeny. The results position Fbn1 between the B2m and Illa genes on mouse Chromosome (Chr) 2 and establish its candidacy for the Tight skin (Tsk) mutation. The results position Fbn2 between the D18Mit35 and Pdgfrb loci in the central region of mouse Chr 18. Fbn2 maps near three mutations [bouncy (bc), plucked (pk), and shaker with syndactyly (sy)] and may be a candidate for the pk mutation.
    Type of Medium: Electronic Resource
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