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Challenges and limitations of gene expression profiling in mechanistic and predictive toxicology Fielden MR; Zacharewski TRToxicol Sci 2001[Mar]; 60 (1): 6-10RNA and protein expression profiling technologies have revolutionized how toxicologists can study the molecular basis of adverse effects of chemicals and drugs. It is expected that these new technologies will afford efficient and high-throughput means to delineate mechanisms of action and predict toxicity of unknown agents. To reach these goals, a more thorough understanding of the constraints of the methodology is needed to design genome-scale studies and to interpret the vast amount of data collected. This paper addresses some of the limitations and uncertainties of gene expression profiling in mechanistic and predictive toxicology with respect to the expectations of toxicogenomics. The challenges associated with interpreting information from large-scale gene expression experiments in vivo is also discussed.|*Gene Expression Profiling[MESH]|Animals[MESH]|Forecasting/methods[MESH]|Gene Expression/*drug effects[MESH]|Genome, Human[MESH]|Humans[MESH]|Pharmacogenetics[MESH]|Toxicology/*methods/trends[MESH]|Xenobiotics/*toxicity[MESH] |
