HESI gave several presentations at Eurotox 2013.
The mission of HESI’s Emerging Systems Toxicology for the Assessment of Risk (eSTAR) Committee is to develop and deliver innovative systems toxicology approaches for risk assessment. The committee aims to catalyze adoption of new translational and predictive tools that guide decision-making based on mechanistic understanding of toxicological response.
The Emerging Systems Toxicology for the Assessment of Risk (eSTAR) Committee is exploring two new projects, one relating to cell painting for safety assessment and the other exploring the use of error corrected sequencing to predict tumorigenicity from non-genotoxic carcinogens. Both groups are looking for additional stakeholders.
Interested in finding out more? Please contact Saddef Haq (firstname.lastname@example.org)
This group is exploring the use of transcriptomic point of departure for chemical risk assessment. A state of the science manuscript is in preparation.
Three active working groups have compiled, curated, and begun analysis of transcriptomic, toxicologic, and pathologic data to identify short-term transcriptional signatures. These signatures will inform molecular mechanisms underlying pathogenesis of histologic risk factors of neoplasia observed in 90-day studies or chronic 6-month rat toxicology studies and that will inform the value/need to conduct a 2-year rat carcinogenicity study. Novel data housing/analysis partnerships were formed with the NIEHS Chemical Effects in Biological Systems (CEBS) data repository and Lhasa.
An miRNA best practices manuscript was submitted in August 2020. A second paper on renal miRNA biomarkers will be submitted by October 2020. A new experimental and/ or methodology project to reduce hurdles to the use of miRNAs for translational safety assessment and in biological discovery efforts is in development.
Multiple revisions of the Qualification Plan for the TGx-DDI biomarker were submitted to FDA during 2020, including an added multi-site validation study design per the FDA. The plan is under FDA review; if accepted, experimental work and full qualification will proceed in 2021.
Learn more about the use of the TGx-DDI transcriptomic biomarker for the genotoxicity assessment of data-poor chemicals here (poster presented at the 2021 EMGS Virtual Annual Meeting by Anne-Marie Fortin, University of Ottawa).
US Environmental Protection Agency
HESI gave several presentations at Eurotox 2013.
This workshop was held on 16-17 May 2013 at OECD Congress Center in Paris, France, with the goal to review progress in human carcinogenesis safety evaluation strategies and cancer risk assessment.
This event was sponsored by the HESI Application of Genomics to Mechanism-Based Risk Assessment (Genomics) Committee.
This workshop was co-organized by the carcinoGENOMICS Program, ECVAM, HESI Application of Genomics to Mechanism-based Risk Assessment Technical Committee, and the Netherlands Genomics Initiative.
The workshop was sponsored by the HESI Application of Genomics to Mechanism-Based Risk Assessment Committee.
This event was organized by the HESI Genomics Committee.
Most archived biological tissue samples are preserved in formalin. Formalin fixation of biological samples damages nucleic acids and limits their use in future genomic analyses. Improved tools are needed to increase nucleic acid yield, reduce artifacts, and facilitate analysis and interpretation of genomic data, ...
MicroRNAs (miRNAs) are small non-coding RNA that regulate the expression of messenger RNA and are implicated in almost all cellular processes. Importantly, miRNAs can be released extracellularly and are stable in these matrices where they may serve as indicators of organ or cell-specific toxicity, disease, and biological ...
Drug-induced kidney injury (DIKI) is a major concern in both drug development and clinical practice. There is an unmet need for biomarkers of glomerular damage and more distal renal injury in the loop of Henle and the collecting duct (CD). A cross-laboratory program to identify and characterize urinary microRNA (miRNA) patterns ...
Robust genomic approaches are now available to realize improvements in efficiencies and translational relevance of cancer risk assessments for drugs and chemicals. The authors propose a path for implementation of innovative cancer risk assessment including incorporating genomic signatures to assess mechanistic relevance ...
Genotoxicity testing is an essential component of the safety assessment paradigm required by regulatory agencies world-wide for analysis of drug candidates, and environmental and industrial chemicals. Current genotoxicity testing batteries feature a high incidence of irrelevant positive findings – particularly for in ...
MicroRNAs (miRNAs) regulate gene expression and have been targeted as indicators of environmental/toxicologic stressors. Using the data from our deep sequencing of miRNAs in an extensive sampling of rat tissues, we developed a database called RATEmiRs for the Rat Atlas of Tissue-specific and Enriched miRNAs to allow users to ...