*OUR LONG TERM GOAL IS TO UTILIZE THE YEAST S.

Award Information
Agency: Department of Health and Human Services
Branch: N/A
Contract: N/A
Agency Tracking Number: 1370
Amount: $50,000.00
Phase: Phase I
Program: SBIR
Awards Year: 1984
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
75 Kneeland Street, Boston, MA, 02111
DUNS: N/A
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 HENRY EVANS BLAIR
 VICE PRESIDENT
 () -
Business Contact
Phone: () -
Research Institution
N/A
Abstract
*OUR LONG TERM GOAL IS TO UTILIZE THE YEAST S. CEREVISIAE AS A VECTOR TO SYNTHESIZE CLONED HUMAN LYSOSOMAL ENZYMES WITH A SPECIFIC OLIGOSACCHARIDE THAT WILL TARGET THE ENZYMES TO TISSUE MACROPHAGES. THIS MAY FORM THE BASIS OF A NOVEL ENZYME-REPLACEMENT THERAPY FOR SEVERAL INHERITED LYSOSOMAL STORAGE DISEASES, AS THE DUAL PROBLEMS OF EFFECTIVE TARGETING AND LARGE SCALE, LOW COST PRODUCTION OF REPLACEMENT ENZYMES WOULD BE SOLVED. HERE WE WILL UTILIZE THE YEAST ENZYME INVERTASE AS A MODEL FOR SUCH STUDIES. CERTAIN YEAST MUTANTS WITH TEMPERATURE-SENSITIVE BLOCKS IN THE SECRETION PATHWAY SHOULD ACCUMULATE INVERTASE INTRACELLULARLY WITH DEFINED ASPARAGINE-LINKED OLIGOSACCHARIDES WITH 8 OR 9 MANNOSE RESIDUES PER CHAIN. WE WILL PURIFY AND CHARACTERIZE BOTH WILD-TYPE AND MODIFIED INVERTASES, AND TEST THEIR ABILITY TO BIND TO RAT ALVEOLAR MACROPHAGE MANNOSE RECEPTORS. AS TIME PERMITS, WE WILL ALSO TEST WHETHER THEY ARE TARGETED TO HEPATIC MACRPHOPHAGES AFTER INJECTION INTO RATS.

* Information listed above is at the time of submission. *

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