In Vitro Assay for Chemical Allergens

Award Information
Agency: Department of Health and Human Services
Branch: N/A
Contract: 2R44CA106137-02A1
Agency Tracking Number: CA106137
Amount: $475,043.00
Phase: Phase II
Program: SBIR
Awards Year: 2007
Solicitation Year: 2007
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
MATTEK CORPORATION
MATTEK CORPORATION, 200 HOMER AVE, ASHLAND, MA, 01721
DUNS: 147365936
HUBZone Owned: Y
Woman Owned: Y
Socially and Economically Disadvantaged: Y
Principal Investigator
 SEYOUM AYEHUNIE
 (508) 881-6771
 SAYEHUNIE@MATTEK.COM
Business Contact
 SEYOUM AYEHUNIE
Phone: (508) 881-6771
Email: sayehunie@mattek.com
Research Institution
N/A
Abstract
DESCRIPTION (provided by applicant): Allergic contact dermatitis (ACD) is one of the most common and costly health problems in industrialized countries. Currently, more than 100,000 chemicals are in commercial use and another 2,000 new chemicals and numerous new-product formulations are tested or marketed every year. All of these materials must be screened for allergenicity. During Phase I, a human dendritic cell based assay was developed which gives sensitive and specific responses to allergens. The non-optimized assay is approximately a factor of 10 less expensive than current animal based tests. In addition, the assay avoids animal welfare issues and uncertainty related to species extrapolation. During Phase II, the database of materials tested will be expanded and the in vitro assay method and prediction model will be finalized. The reproducibility of the assay will be assessed and, after demonstration of interlaboratory transferability, a multi-lab GLP validation study will be performed. Finally, an optimized assay kit which further enhances the economic advantages of the in vitro method will be developed. Allergic contact dermatitis, in vitro testing, plasmacytoid DC. PUBLIC HEALTH RELEVANCE: A predictive test system for assessing the allergic contact dermatitis potential of chemicals will have far reaching application in industries involved in cosmetic, personal hygiene and topical pharmaceutical products. Evaluation of allergenicity is important to minimize the hazards of occupational and public exposure to chemicals and products. The proposed human cell based assay will provide a sensitive and specific method of allergen screening without the use of laboratory animals and at a reduced cost.

* information listed above is at the time of submission.

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