Tissue specificity of the decrease of cattle lymphocyte DNA methylation during chronic lymphoid leukemia

Burtseva, N.N.; Azizov, I.M.; Vaniushin, B.F.

Biokhimiia 44(7): 1296-1302

1979


ISSN/ISBN: 0320-9725
PMID: 497277
Document Number: 150466
The content of m5C in leukemic lymphocyte DNA was much lower than in healthy animals' lymphocytes. The decrease in methylation of DNA from various lymphoid organs of animals with chronic lymphoid leukemia correlated with the degree of the impairment. No significant changes of m5C level and acceptor ability of the in vitro reaction of heterologous methylation of cow lymph lymphocyte DNA were observed. Data obtained may be interpreted in terms of tissue (cell) specificity or differences in degree of DNA methylation under conditions of chronic lymphoid leukemia. The changes in DNA methylation may apparently underlie the disturbances in regulation of activity of the leukemic cell genetic mechanisms.

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