Fiscal Year:
2001
Title:
Phototoxicity using the Chorioallantoic Membrane
Agency:
HHS
Contract:
N/A
Award Amount:
$100,000.00
Abstract:
DESCRIPTION (Applicant's Abstract): This proposal, "Phototoxicity Screen using
the Chorioallantoic Membrane" (PhotoCAM) is an alternative phototoxicity
screening test to identify chemical mediators and substances with phototoxic
properties, which is in demand by the pharmaceutical, chemical, and consumer
product industries. The chorioallantoic membrane (CAM) of the fertile chicken
egg has already shown to be a useful, sensitive model for detecting irritants.
The purpose of this proposal is to demonstrate the feasibility of employing the
CAM assay, as well as endpoints of PGE2 and cytokine production by the
epidermal cells comprising the tissue, as test systems to identify potential
phototoxins or photoirritants. There have only been two papers published in the
literature using this model, thus this is a relatively novel application of
this model system. The use of an intact tissue has several advantages over
existing cell culture-based phototoxicity screening assays. These include the
presence of multiple cell types found in the skin, and a readily accessible
circulatory system that is in contact with metabolically functional hepatic
tissue. The PhotoCAM Assay described herein will provide a sensitive test
system while (1) complying with the Animal Welfare Act (AWA) by directly
addressing the 3Rs, by reducing animal usage; (2) increasing the discriminating
power and quality of data generated when compared to cell culture methods; and
(3) greatly reducing the costs associated with the use of animals for
phototoxicity screening studies.
Principal Investigator:
Daniel R. Cerven
Small Business Information at Submission:
MB RESEARCH LABORATORIES, INC.
BOX 178, 1756 WENTZ RD SPINNERSTOWN, PA 18968
EIN/Tax ID:
232953302
DUNS:
N/A
Number of Employees:
N/A
Woman-Owned:
No
Minority-Owned:
No
HUBZone-Owned:
No