IIVS, Non Animal Testing, Alternative Test Methods, In Vitro Toxicology | Assays Itegrated Testing Strategies
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Archive

Webinar: How GLPs Enhance the Quality of Regulated and Non-Regulated Toxicology

October 18, 2016
This one-hour webinar, led by IIVS Director of Quality and Compliance, introduces some of the concepts of Good Laboratory Practices (GLPs) designed to promote study and data integrity within an in vitro toxicology framework. Applying these concepts within your own laboratory should aid in production of robust, repeatable studies. View Slides...

Integrated Testing Strategies for Skin Sensitization

August 24, 2016
Determination of skin sensitization potential is a critical endpoint in the safety assessment of raw materials, chemicals, mixtures and formulations.  Although the Guinea Pig Maximization Test (GPMT) and Local Lymph node assay (LLNA) have historically been used to address this adverse effect, in vitro assays have been developed and validated in order to replace these resource-intensive animal tests. Skin sensitization is the result of a series of biochemical "Key Events" (KEs) that involve covalent binding of (generally electrophilic) compounds to cellular...

Direct Peptide Reactivity Activation Assay (DPRA, OECD 442C)

August 24, 2016
The DPRA  (OECD 442C) is an in chemico assay that  models the first key event in the skin sensitization Adverse Outcome Pathway (AOP) - skin, protein reactivity. Compounds implicated in causing Allergic Contact Dermatitis (ACD) are generally electrophilic in nature. This assay identifies dermal sensitizers based on their reactivity with synthetic peptides containing the nucleophilic amino acid residues lysine and cysteine. Using LC/UV, conjugation of the test material with the peptides can be analyzed. Trained by the developers of this assay (Procter &...

KeratinoSens (OECD 442D)

August 24, 2016
The KeratinoSensTM assay is a cell-based reporter gene assay that models the second key event in the Adverse Outcome Pathway for Dermal Sensitization, namely keratinocyte activation.  This approach measures the induction of luciferase under the control of the antioxidant response element (ARE) derived from the human AKR1C2 gene, and can be used in a Weight of Evidence approach as an alternative to animal testing methods for the purpose of hazard identification. IIVS has participated in validation studies led by the assay developer...

Fragrance & Flavors

August 24, 2016
Exposure to fragrance chemicals is most commonly by direct skin contact. Allergic contact dermatitis (ACD) to fragrance ingredients is most often caused by cosmetic products, such as perfumes, deodorants, and aftershave products. Cosmetic fragrance ingredients should be assessed for exposure damage including skin sensitization (ACD), phototoxicity, skin irritation (irritant contact dermatitis), and respiratory irritation and sensitization. At IIVS, we have pre-clinical testing programs to address each of these endpoints to ensure the safety of fragrance 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Cosmetics & Personal Care

August 24, 2016
European legislation and US research activities towards ‘21st century toxicology’ are setting the standards for animal-free toxicological assessments and the cosmetics industry has been the first to feel the effects. As per EU Regulation 1223/2009, animal testing of cosmetic ingredients and finished products is currently banned in the EU, as is the marketing of finished cosmetic products and the ingredients contained therein which were tested on animals for cosmetic safety assessment purposes. These bans hold irrespective of the availability of validated...

Webinar: Regulatory Initiatives for New Approaches to Traditional Toxicity Testing

July 1, 2016
This one-hour webinar features presentations by Dr. Jennifer McLain, Deputy Director, Office of Pesticide Programs, Antimicrobial Division and IIVS CEO Dr. Rodger Curren. Dr. McLain discusses the EPA OPP's plans to reduce the use of animal testing in acute toxicity testing and provides suggestions on how stakeholders and EPA can cooperate to advance animal reduction goals. Dr. Curren then talks about IIVS' activities in developing the current non-animal strategy for eye irritation, and recent investigations into in vitro methods to...

Momentum Grows for Modernizing the US EPA “Six-pack” Battery of Acute Toxicity Tests

January 13, 2016
In the current global regulatory climate favorable for further advancement of in vitro test methods, the US Environmental Protection Agency (US EPA) is driving significant efforts in the United States. The latest endeavor targets the modernization of the battery of acute toxicity tests classically known as the “six-pack” (Fig. 1a). Known for many years as an “all in vivo” testing strategy for products registered under the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA), the six-pack has recently been revised to include...