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Immune response signatures of benzo(a)pyrene exposure in normal human mammary epithelial cells in the absence or presence of chlorophyllin.

Authors
John-K; Keshava-C; Richardson-DL; Weston-A; Nath-J
Source
Cancer Genomics Proteomics 2009 Jan-Feb; 6(1):1-11
NIOSHTIC No.
20036895
Abstract
Carcinogenic polycylic aromatic hydrocarbons can alter immune responses. Changes in immune response gene expression profiles in multiple human mammary cell strains exposed to benzo(a)pyrene (BP) (4 ÁM) in vitro, in the presence or absence of chlorophyllin (5 ÁM), were observed using Affymetrix gene arrays. Expressions of five immune response genes were altered ~3.0-fold by BP exposure and 24 genes by BP in the presence chlorophyllin. In silico pathway analysis revealed altered immune response genes form interactive gene networks with many cellular processes, suggesting their role in a complex multigenic response to toxins. Additionally, it was suggestive of the possible immunomodulatory potential of chlorophyllin apart from various other well-documented mechanisms of action. Gene expression matrices revealed consistent alteration patterns involving IL1B, SECTM1 and CXCL14 on exposure to BP, and IL1RN, CD86, IF144 and GIP2 in the presence of chlorophyllin and BP, suggesting some of these genes might constitute putative immune response biomarkers of PAH exposure. This study has therefore identified a battery of potential immune response biomarkers of PAH exposure, amidst several genes, for future validation studies.
Keywords
Polycyclic-aromatic-hydrocarbons; Polycyclic-hydrocarbons; Carcinogens; Immune-reaction; Genetic-factors; Toxins; Biological-effects; Biomarkers; Author Keywords: Carcinogens; chemoprevention; chlorophyllin; gene expression; polycyclic aromatic hydrocarbons
Contact
Joginder Nath, Genetics and Developmental Biology Program, 1120 Agricultural Sciences Building, West Virginia University, Morgantown, WV 26506-6108
CAS No.
50-32-8
Publication Date
20090101
Document Type
Journal Article
Email Address
jnath@wvu.edu
Fiscal Year
2009
NTIS Accession No.
NTIS Price
Issue of Publication
1
ISSN
1109-6935
NIOSH Division
DRDS
Source Name
Cancer Genomics & Proteomics
State
WV; MD; NC
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