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  • Title: A comparative study of the lesions in cultured fibroblasts of humans and four species of animals with Chediak-Higashi syndrome.
    Author: Penner JD, Prieur DJ.
    Journal: Am J Med Genet; 1987 Oct; 28(2):445-54. PubMed ID: 3425619.
    Abstract:
    The Chediak-Higashi syndrome (CHS) is an autosomal recessive genetic disease of humans, and clinically similar diseases occur in cats, mink, cattle, mice, killer whales, blue foxes, and silver foxes. It is characterized by incomplete albinism, increased susceptibility to infection, and the most distinctive hallmark, the presence of enlarged cytoplasmic granules in many cell types. The acid phosphatase-positive granules, lysosomes, of fibroblasts from control and CHS humans, cats, mink, cattle, and mice were examined. These studies represent the initial characterization of the lesions in fibroblasts of CHS cats, mink, and cattle. Fibroblasts from each species and genotype were stained histochemically for acid phosphatase, and morphometric analysis of the distribution of acid phosphatase-positive granules was performed. The lysosomes in the CHS fibroblasts tended to be restricted to the perinuclear area of the cytoplasm, whereas the lysosomes in the normal fibroblasts were generally more widely distributed in the cytoplasm. The lysosomes in the CHS fibroblasts of all species examined were also more enlarged and heterogeneous than those in the control fibroblasts.
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