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CLEARING OF TUMOR CELLS FROM HUMAN BONE MARROW CULTURES

Award Information
Agency: Department of Health and Human Services
Branch: N/A
Contract: N/A
Agency Tracking Number: 16424
Amount: $49,584.00
Phase: Phase I
Program: SBIR
Solicitation Topic Code: N/A
Solicitation Number: N/A
Timeline
Solicitation Year: N/A
Award Year: 1991
Award Start Date (Proposal Award Date): N/A
Award End Date (Contract End Date): N/A
Small Business Information
5516 Nicholson Lane
Kensington, MD 20895
United States
DUNS: N/A
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Knazek, Richard A
 Principal Investigator
 (301) 770-9370
Business Contact
 1 R43 CA54694-01
Phone: () -
Research Institution
N/A
Abstract

THE PURPOSE OF THE PRESENT PROTOCOL IS TO DEVELOP AN IN VITRO MEANS BY WHICH HUMAN BONE MARROW CAN BE CLEARED OF METASTATIC FOCI OF CARCINOMA. PRELIMINARY IN VITRO EXPERIMENTS PERFORMED WITH CELLMAXTM HOLLOW FIBER CELL CULTURE SYSTEMS DEMONSTRATED THAT 1) NORMAL HUMAN MARROW CAN BE GROWN TO PRODUCE PLURIPOTENT CELLS YIELDING ALL HEMATOPOIETIC CELL TYPES AND 2) HUMAN T LYMPHOCYTES CAN BE EXPANDED TO MASSIVE NUMBERS FOR CLINICAL THERAPY. ACTIVATED T CELLS DESTROY NEOPLASTIC CELLS BOTH IN VIVO AND IN VITRO. WE WILL CULTURE ALIQUOTS OF BONE MARROW FROM TEN PATIENTS, EACH CONTAINING METASTATIC NEUROBLASTOMA, BREAST OR PROSTATE CARCINOMA. THESE MARROWS WILL BE MAINTAINED WITHIN CONTINUOUSLY PERFUSED HOLLOW FIBER BIOREACTORS FOR 3 WEEKS DURING WHICH TIME, THE ENDOGENOUS T CELLS WILL BE ACTIVATED AND EXPANDED BY ADDITION OF RIL-2. CELLS WILL THEN BE HARVESTED FROM THE EXTRA-FIBER SPACE AND THE NUMBERS OF BOTH MALIGNANT CELLS AND COLONY-FORMING BONE MARROW STEM CELLS DETERMINED. PHENOTYPIC AND IN VITRO CYTOTOXICITY PROFILES WILL ALSO BE DETERMINED. SUCCESSFUL DEPLETION OF MALIGNANT CELLS WITH CONCOMITANT MAINTENANCE OF THE COLONY-FORMING CELLS WITHIN HARVESTED MARROW COULD ENABLE PATIENTS HAVING SUCH METASTIC MALIGNANCIES TO BE TREATED WITH MARROW-DESTROYING DOSES OF CHEMOTHERAPY AND RADIATION THERAPY AND THEN BE RESCUED BY RE-INFUSION AND ENGRAFTMENT OF THEIR OWN MARROW.

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

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