THE GOAL IS TO DEVELOP A RELIABLE TERATOGEN PRESCREEN TEST EMPLOYING EMBRYOS OF THE SEA URCHIN, STRONGYLOCENTROTUS PURPURATUS.

Award Information
Agency:
Department of Health and Human Services
Branch
n/a
Amount:
$50,000.00
Award Year:
1984
Program:
SBIR
Phase:
Phase I
Contract:
n/a
Agency Tracking Number:
1444
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Northwestern Aquatic Sci Inc.
Yaquina Bay Road, P.o. Box 1437, Newport, OR, 97365
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
RICHARD S. CALDWELL
DIRECTOR
() -
Business Contact:
() -
Research Institution:
n/a
Abstract
THE GOAL IS TO DEVELOP A RELIABLE TERATOGEN PRESCREEN TEST EMPLOYING EMBRYOS OF THE SEA URCHIN, STRONGYLOCENTROTUS PURPURATUS. A SEA URCHIN EMBRYO SCREEN WOULD COMPEMENT EXISTING TESTS DESIGNED TO PRIORITIZE POTENTIAL TERATOGENS AT A RELATIVELY LOW COST. THE APPROACH INVOLVES TESTING FOR MORTALITY AND STRUCTURAL ABNORMALITIES INDUCED BY CHEMICAL EXPOSURE DURING THE EMBRYONIC DEVELOPMENT OF THE LARVAL ORGANISM. TOXICITY OF THE CHEMICAL ADMINISTERED IN AN IDENTICAL MANNER TO A LATER LARVAL STAGE, THE PLUTEUS LARVA, WOULD PERMIT A DIRECT COMPARISON BETWEEN THE CONCENTRATION OF CHEMICAL CAUSING TERATOGENIC EFFECTS (IN THE EMBRYO) ASSOCIATED WITH UNIQUE EMBRYOLOGICAL PROCESSES, AND THE CONCENTRATION RESULTING IN FRANK TOXICITY TO AN ORGANISM (THE PLUTEUS LARVA) NOT UNDERGOING TISSUE DIFFERENTIATION AND ORGANOGENISIS WITH RESPECT TO LARVAL STRUCTURES AND FUNCTION. PHASE I STUDIES WILL CONCENTRATE ON PROTOCOL DEVELOPMENT, INCLUDING THE SELECTION OF EFFECTS CRITERIA, AND INITIAL EVALUATION OF THE EXPERIMENTAL DESIGN. THEN A SELECT SERIES OF TERATOGENS AND NON-TERATOGENS, ABOUT 20 COMPOUNDS IN ALL, WILL BE EXAMINED USING THE METHOD TO EVALUATE ITS FEASIBILITY. IF THE PHASE I STUDIES ARE PROMISING, THEN PHASE II WILL REFINE THE PROTOCOL, SUBSTANTIALLY ENLARGE THE DOCUMENTATION DATA BASE (OF CHEMICALS TESTED), AND ATTEMPT TO INCORPORATE AUTOMATION INTO THE TEST. A RELIABLE TEST WILL HAVE COMMERCIAL POTENTIAL AS A TERATOGEN TEST SERVICE, AND POSSIBLY FOR THE MANUFACTURE OF A PARTIALLY AUTOMATED TEST SYSTEM.

* information listed above is at the time of submission.

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