Next Article in Journal
Study of Influencing Factors and the Mechanism of Preparing Triazinedithiol Polymeric Nanofilms on Aluminum Surfaces
Next Article in Special Issue
Identification of Compounds in the Essential Oil of Nutmeg Seeds (Myristica fragrans Houtt.) That Inhibit Locomotor Activity in Mice
Previous Article in Journal
Hybrid Endovascular Repair in Aortic Arch Pathologies: A Retrospective Study
Previous Article in Special Issue
The Individual and Combined Effects of Deoxynivalenol and Aflatoxin B1 on Primary Hepatocytes of Cyprinus Carpio
Article

Comparison of TNFα to Lipopolysaccharide as an Inflammagen to Characterize the Idiosyncratic Hepatotoxicity Potential of Drugs: Trovafloxacin as an Example

1
Department of Cellular, Molecular, & Exploratory Toxicology, Abbott Laboratories, IL 60064, USA
2
Department of Pharmacology & Toxicology, Center for Integrative Toxicology, Michigan State University, University; East Lansing, MI 48824, USA
3
Discovery Toxicology, Bristol-Myers Squibb; Princeton, NJ 08540, USA
4
The Beatson Institute for Cancer Research, Glasgow, UK
*
Author to whom correspondence should be addressed.
Current address: Department of Pharmacology, Toxicology and Therapeutics, The University of Kansas Medical Center, 3901 Rainbow Blvd, MS-1018, Kansas City, KS 66160, USA.
Int. J. Mol. Sci. 2010, 11(11), 4697-4714; https://doi.org/10.3390/ijms11114697
Received: 12 September 2010 / Revised: 22 October 2010 / Accepted: 15 November 2010 / Published: 18 November 2010
(This article belongs to the Special Issue Advances in Molecular Toxicology)
Idiosyncratic drug reactions (IDRs) are poorly understood, unpredictable, and not detected in preclinical studies. Although the cause of these reactions is likely multi-factorial, one hypothesis is that an underlying inflammatory state lowers the tolerance to a xenobiotic. Previously used in an inflammation IDR model, bacterial lipopolysaccharide (LPS) is heterogeneous in nature, making development of standardized testing protocols difficult. Here, the use of rat tumor necrosis factor-α (TNFα) to replace LPS as an inflammatory stimulus was investigated. Sprague-Dawley rats were treated with separate preparations of LPS or TNFα, and hepatic transcriptomic effects were compared. TNFα showed enhanced consistency at the transcriptomic level compared to LPS. TNFα and LPS regulated similar biochemical pathways, although LPS was associated with more robust inflammatory signaling than TNFα. Rats were then codosed with TNFα and trovafloxacin (TVX), an IDR-associated drug, and evaluated by liver histopathology, clinical chemistry, and gene expression analysis. TNFα/TVX induced unique gene expression changes that clustered separately from TNFα/levofloxacin, a drug not associated with IDRs. TNFα/TVX cotreatment led to autoinduction of TNFα resulting in potentiation of underlying gene expression stress signals. Comparison of TNFα/TVX and LPS/TVX gene expression profiles revealed similarities in the regulation of biochemical pathways. In conclusion, TNFα could be used in lieu of LPS as an inflammatory stimulus in this model of IDRs. View Full-Text
Keywords: idiosyncratic hepatotoxicity; liver; inflammation; rat; transcriptomics idiosyncratic hepatotoxicity; liver; inflammation; rat; transcriptomics
Show Figures

MDPI and ACS Style

Liguori, M.J.; Ditewig, A.C.; Maddox, J.F.; Luyendyk, J.P.; Lehman-McKeeman, L.D.; Nelson, D.M.; Bhaskaran, V.M.; Waring, J.F.; Ganey, P.E.; Roth, R.A.; Blomme, E.A.G. Comparison of TNFα to Lipopolysaccharide as an Inflammagen to Characterize the Idiosyncratic Hepatotoxicity Potential of Drugs: Trovafloxacin as an Example. Int. J. Mol. Sci. 2010, 11, 4697-4714. https://doi.org/10.3390/ijms11114697

AMA Style

Liguori MJ, Ditewig AC, Maddox JF, Luyendyk JP, Lehman-McKeeman LD, Nelson DM, Bhaskaran VM, Waring JF, Ganey PE, Roth RA, Blomme EAG. Comparison of TNFα to Lipopolysaccharide as an Inflammagen to Characterize the Idiosyncratic Hepatotoxicity Potential of Drugs: Trovafloxacin as an Example. International Journal of Molecular Sciences. 2010; 11(11):4697-4714. https://doi.org/10.3390/ijms11114697

Chicago/Turabian Style

Liguori, Michael J., Amy C. Ditewig, Jane F. Maddox, James P. Luyendyk, Lois D. Lehman-McKeeman, David M. Nelson, Vasanthi M. Bhaskaran, Jeffrey F. Waring, Patricia E. Ganey, Robert A. Roth, and Eric A. G. Blomme 2010. "Comparison of TNFα to Lipopolysaccharide as an Inflammagen to Characterize the Idiosyncratic Hepatotoxicity Potential of Drugs: Trovafloxacin as an Example" International Journal of Molecular Sciences 11, no. 11: 4697-4714. https://doi.org/10.3390/ijms11114697

Find Other Styles

Article Access Map by Country/Region

1
Only visits after 24 November 2015 are recorded.
Back to TopTop