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Nucleoli of normal and leukemic lymphocytes were studied by cytochemical and immunofluorescence methods to provide more information on the nucleolar presence and distribution of proteins B23 and C23. Annular nucleoli of human lymphocytes represent a very convenient subject for such studies, since they consist of one centrally located large fibrillar center surrounded by RNP components. In such nucleoli, protein C23 was present mainly in the central nucleolar region and protein B23 was found mostly in the periphery. The nucleolar area immunostained for protein B23 was usually larger than that stained for protein C23. The distribution of protein C23 appeared to be similar to that of intensely stained nucleolar argyrophilic components. No substantial differences were found between the distribution of proteins B23 and C23 in nucleoli of normal and leukemic lymphocytes. In lymphocytes of patients treated with chemotherapy, the immunofluorescence was diminished for protein B23 and particularly so for protein C23.
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F Gyorkey, and
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V Chudomel, and
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June 1980,
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January 1984,
Chromosoma,
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Life sciences,
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European journal of cell biology,
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March 1990,
Nucleic acids research,
K Smetana, and
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February 1992,
Blood,
K Smetana, and
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V Chudomel, and
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June 1983,
Experimental cell research,
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April 1970,
Cancer research,
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R Ochs, and
M A Lischwe, and
F Gyorkey, and
E Freireich, and
V Chudomel, and
H Busch
January 1980,
Folia haematologica (Leipzig, Germany : 1928),
