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

ARE-Nrf2 Luciferase Keratinocyte Activation Test Method (OECD 442D)

October 18, 2018
KeratinoSensTM and LuSens are cell-based reporter gene assays that model the second key event in the Adverse Outcome Pathway for Dermal Sensitization, namely keratinocyte activation.  The assays measure the induction of a stably transfected luciferase gene under the control of the antioxidant response element (ARE) derived from the human AKR1C2 or rat NQO1 gene. The results of these assays can be used in a Weight of Evidence approach as an alternative to animal testing methods for the purpose of hazard identification. IIVS has...

China’s Compulsory Animal Testing for Cosmetics May Take More Than Five Years to Stop

October 17, 2018
By Amanda Lim, Editor (Singapore) CosmeticsDesign-Asia.com   Although China has made significant strides in moving away from animal testing, its challenges suggest it may take more than five years for the country to completely stop compulsory animal-testing for cosmetics, says Hedy He, regulatory analyst and editor of ChemLinked: "In the short term a total ban on animal testing is unlikely given the lack of testing infrastructure and technical capacity shortcomings of the industry." The Overarching Issue Among the many obstacles, the overarching one is the...

IIVS Collaborates with BASF and Givaudan to Validate a Non-animal Test for Regulatory Submissions

August 28, 2018
GAITHERSBURG, MD –August 28– The Institute for In Vitro Sciences (IIVS), with an established track record in the validation of alternatives to animal testing, is teaming up with BASF and Givaudan to validate an improved skin sensitization reactivity method to address the needs of toxicologists and regulators. Scientists at BASF and Givaudan have developed the Kinetic Direct Peptide Reactivity Assay (Kinetic DPRA), a non-animal test to predict allergic reactions in the skin known as sensitization. Three other non-animal sensitizer tests have...

Registration Now Open for Practical Methods 2019

August 27, 2018
IIVS is excited to announce that registration is now open for our 2019 Practical Methods for In Vitro Toxicology Workshop. Space is limited so please book as soon as possible to guarantee your spot. ...

Modernization of EPA “6-Pack” of Acute Toxicity Tests Continues

July 27, 2018
The US Environmental Protection Agency (US EPA) continues to drive significant efforts in the United States to modernize the battery of acute toxicity tests classically known as the “6-pack.” Learn More....

The Assessment of Phototoxicity Using the 3T3 Neutral Red Uptake (NRU) Phototoxicity Assay and a Modified Photo-Direct Peptide Reactivity Assay (DPRA)

March 28, 2018
Alternative methods, including the validated 3T3 Neutral Red Uptake (NRU) Phototoxicity assay (OECD TG 432) may be used as a pre-clinical test to address phototoxicity. Currently, there are no validated alternative test methods to identify photoallergens; however, there are several validated alternative test methods to address skin sensitization, including the Direct Peptide Reactivity Assay (DPRA) (OECD 442C). To address photoallergy, we utilized the 3T3 Phototoxicity assay in combination with a modified photo-DPRA assay to determine if these assays were able...

IIVS e-News – January 2018

February 1, 2018
Featured in this issue is an article on how an integrated approach to skin sensitization testing can work for your testing program. a preview of IIVS events and posters at SOT, our recent collaboration with BASF to distribute the LuSens test in China, and more.  Read issue....

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...

Human Cell Line Activation Test (h-CLAT, OECD 442E)

August 24, 2016
The human Cell Line Activation Test (h-CLAT) is a cell-based assay that identifies skin sensitizers by examining changes in the expression of cell surface markers (CD54 and CD86) implicated in dendritic cell activation, the third key event of the skin sensitization AOP.  Following exposure of the THP-1 human monocyte cell line to the test substance, expression levels of CD54 and CD86 are quantified by flow cytometry and compared to controls. The method has been reviewed by the European Union Reference Laboratory for...