Summary
An ultrastructural study was performed on normal and Benzo(a)-pyrene (B(a)P)-transformed fetal mouse brain cells.
Early subcultures of a strain initiated from whole brain presented three cell types in vitro: astroglial, poorly differentiated glial, and spongioblastic types. After B(a)P-treatment, there was an exclusive transformation and the growth of neuroglia sometimes without gliofibrillary maturation, but with the presence of glial fibrillary acidic protein (GFAP) in the cytoplasm.
Early subcultures of another strain initiated from cortex only presented poorly differentiated neuroglial cells. After transformation, cell maturation as evidenced by gliofibrillogenesis and GFAP production by these cells was observed.
In both cases, the potentiality of glial differentiation after in vitro malignant transformation by a chemical carcinogen seemed preserved.
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Tripier, M.F., Markovits, P., Papadopoulo, D. et al. Normal and benzo(a)pyrene-transformed fetal mouse brain cells. Acta Neuropathol 47, 205–211 (1979). https://doi.org/10.1007/BF00690548
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DOI: https://doi.org/10.1007/BF00690548