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Naphthalene exposure: Effects on gene expression and proliferation in human cord blood cells
Author(s) -
Diodovich Cristina,
Malerba Ilaria,
Bowe Gerard,
Acquati Francesco,
Bianchi Marco Giorgio,
Taramelli Roberto,
ParentMassin Dominique,
Gribaldo Laura
Publication year - 2003
Publication title -
journal of biochemical and molecular toxicology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.526
H-Index - 58
eISSN - 1099-0461
pISSN - 1095-6670
DOI - 10.1002/jbt.10091
Subject(s) - cord blood , western blot , apoptosis , gene expression , microbiology and biotechnology , gene , naphthalene , cell growth , toxicant , cell , transcription factor , chemistry , programmed cell death , rna , biology , immunology , biochemistry , toxicity , organic chemistry
In this study, the effect of naphthalene on the induction of apoptosis and gene expression profiles in cord blood cells has been evaluated, as well as its activity on the BCL‐2 related protein expression. After 6, 24, and 48 h of exposure to naphthalene (500 μM), a decrease in cell death was observed: the cells became more resistant to the toxicant and capable of surviving after the treatment. A Western blot analysis revealed an overexpression of BCL‐2, c‐JUN, c‐FOS, and RAF‐1 proteins, which are involved in the antiapoptotic response and in the regulation of cell growth, differentiation, and development. Furthermore, macroarray analysis showed that naphthalene modified cord blood gene expression, inducing IL‐8 precursor and T‐cell transcription factor and decreasing the level of RNA‐binding protein FUS/TLS. © 2003 Wiley Periodicals, Inc. J Biochem Mol Toxicol 17:286–294, 2003; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/jbt.10091