EPA Science Inventory

Representing Chemical-Induced Liver Injury for Multiscale Tissue Modeling

Citation:

SHAH, I. A. Representing Chemical-Induced Liver Injury for Multiscale Tissue Modeling. Presented at Conference of Semantics in Healthcare and Life Sciences, Boston, MA, March 05 - 07, 2008.

Description:

This presentation will provide an overview of the knowledgebased approach for representing MoA information in rodents and its extrapolation/translation to humans.

Purpose/Objective:

Novel biologically-based computational paradigms are vital for improving the accuracy, reducing animal testing and the cost for assessing the risk of environmental chemicals. The US EPA Virtual Liver Project is aimed at simulating the risk of toxic effects from environmental chemicals in silico. A multiscale computational model of hepatic biology will enable the simulation of normal and pathologic tissue responses in humans through the interplay between dynamic molecular and cellular pathways perturbed by long-term exposure to environmental chemicals. To develop a quantitative multiscale tissue model a semantic approach is being used to organize complex mode of action (MoA) and mechanistic information from literature, databases, and high-throughput biological studies. The project is currently focusing on the MoA for non-genotoxic cancer: persistent nuclear receptor activation leading to hepatocyte hyperplasia, and long-term exposure leading to neoplastic injury.

URLs/Downloads:

Representing Chemical-Induced Liver Injury for Multiscale Tissue Modeling   (PDF,NA pp, 41 KB,  about PDF)

Record Details:

Record Type: DOCUMENT (PRESENTATION/ABSTRACT)
Start Date: 03/06/2008
Completion Date: 03/06/2008
Record Last Revised: 11/25/2008
Record Created: 07/23/2008
Record Released: 07/23/2008
OMB Category: Other
Record ID: 198085

Organization:

U.S. ENVIRONMENTAL PROTECTION AGENCY

OFFICE OF RESEARCH AND DEVELOPMENT

NATIONAL CENTER FOR COMPUTATIONAL TOXICOLOGY