Method for increasing neutrophil populations using in vitro-derived human neutrophil precursor cells
US5888499A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 7, 1995 |
| Grant date | Mar 30, 1999 |
| Priority date | — |
| Expiry date | Jun 7, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12N2501/39
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A suspension comprising human neutrophil precursor cells, wherein the cellular component is comprised of at least about 16% human myeloblasts and promyeclocytes, which have been derived from neutrophis progenitor cells obtained from peripheral blood, bone marrow or cord blood, and less than about 5% colony forming units (CFU) of at least about 50 cells is provided. An alternative suspension comprising human neutrophil precursor cells, wherein the cellular component is comprised of at least about 16% CD15+CD11b- cells and less than about 5% colony forming units (CFU) of at least about 50 cells also is provided, wherein at least about 60% of the CD15+CD11b- cells are myeloblasts and promyelocytes. The suspensions of the invention are useful in methods for increasing neutrophil populations in a patient having a reduced populations of neutrophils.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.